TBR: Adds initial PDF.js support.
Change-Id: Ia00ffe4781919cf8f63bc352a239d642c6976040
diff --git a/browser/components/pdf/index.js b/browser/components/pdf/index.js
new file mode 100644
index 0000000..5d7aba3
--- /dev/null
+++ b/browser/components/pdf/index.js
@@ -0,0 +1,8 @@
+// Copyright 2015 The Vanadium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+module.exports = {
+ state: require('./state'),
+ render: require('./render')
+}
diff --git a/browser/components/pdf/render.js b/browser/components/pdf/render.js
new file mode 100644
index 0000000..38fa0e5
--- /dev/null
+++ b/browser/components/pdf/render.js
@@ -0,0 +1,27 @@
+// Copyright 2015 The Vanadium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+var hg = require('mercury')
+var h = require('mercury').h
+var PDFWidget = require('../../widgets/pdf-widget')
+var sendFile = require('../../events/send-file')
+
+module.exports = render
+
+function render(state, channels) {
+ return h('.pdf', [
+ hg.partial(controls, state, channels),
+ PDFWidget(state.pdf)
+ ])
+}
+
+// TODO(jasoncampebll): split this out into it's own component
+function controls(state, channels) {
+ return h('.controls', [
+ h('input', {
+ type: 'file',
+ 'ev-event': sendFile(channels.set)
+ })
+ ])
+}
diff --git a/browser/components/pdf/state.js b/browser/components/pdf/state.js
new file mode 100644
index 0000000..af906fd
--- /dev/null
+++ b/browser/components/pdf/state.js
@@ -0,0 +1,68 @@
+// Copyright 2015 The Vanadium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+var hg = require('mercury')
+
+module.exports = state
+
+function state(options) {
+ var state = hg.state({
+ pdf: hg.value(null),
+ channels: {
+ set: set
+ }
+ })
+
+ return state
+}
+
+function set(state, data) {
+ if (!data.file) {
+ return
+ }
+
+ var file = data.file
+ var transport = new PDFJS.PDFDataRangeTransport()
+ var source = {
+ length: file.size
+ }
+
+ // SEE: https://jsfiddle.net/6wxnd9uu/6/
+ transport.count = 0
+ transport.file = file
+ transport.length = file.size
+ transport.requestDataRange = requestDataRange
+
+ function requestDataRange(begin, end) {
+ var blob = this.file.slice(begin, end)
+ var fileReader = new FileReader()
+
+ fileReader.onload = onload
+ fileReader.readAsArrayBuffer(blob)
+
+ function onload() {
+ transport.count += end - begin
+ transport.onDataRange(begin, new Uint8Array(this.result))
+ }
+ }
+
+ PDFJS
+ .getDocument(source, transport, password, progress)
+ .then(success, error)
+
+ function password() {
+ throw new Error('Password required')
+ }
+
+ function progress() {
+ }
+
+ function success(pdf) {
+ state.pdf.set(pdf)
+ }
+
+ function error(err) {
+ throw err
+ }
+}
diff --git a/browser/events/send-file.js b/browser/events/send-file.js
new file mode 100644
index 0000000..69d2b61
--- /dev/null
+++ b/browser/events/send-file.js
@@ -0,0 +1,28 @@
+// Copyright 2015 The Vanadium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+var extend = require('xtend')
+var BaseEvent = require('mercury').BaseEvent
+
+module.exports = BaseEvent(lambda)
+
+// TODO(jasoncampbell): Add validation for event target type
+function lambda(ev, broadcast) {
+ var target = ev.target
+ var valid = ev.type === 'change'
+
+ if (!valid) {
+ // Make sure to bubble
+ if (ev.startPropagation) {
+ ev.startPropagation()
+ }
+
+ return
+ }
+
+ // Merges passed in data.
+ var file = target.files[0]
+ var data = extend({ file: file }, this.data)
+ broadcast(data)
+}
diff --git a/browser/index.js b/browser/index.js
index 390154a..cf78c5c 100644
--- a/browser/index.js
+++ b/browser/index.js
@@ -1,29 +1,23 @@
// Copyright 2015 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
+
var domready = require('domready')
var hg = require('mercury')
var h = require('mercury').h
+var pdf = require('./components/pdf')
domready(function ondomready() {
- // Temporary state until components are set up
+ // Top level state.
var state = hg.state({
- count: hg.value(0),
- channels: {
- click: increment
- }
+ pdf: pdf.state()
})
hg.app(document.body, state, render);
})
function render(state) {
- return h('.count', {
- 'ev-click': hg.send(state.channels.click),
- }, 'Count: ' + state.count)
-}
-
-function increment(state) {
- var current = state.count()
- state.count.set(current + 1)
+ return h('div', [
+ hg.partial(pdf.render, state.pdf, state.pdf.channels)
+ ])
}
diff --git a/browser/widgets/pdf-widget.js b/browser/widgets/pdf-widget.js
new file mode 100644
index 0000000..c9b284e
--- /dev/null
+++ b/browser/widgets/pdf-widget.js
@@ -0,0 +1,48 @@
+// Copyright 2015 The Vanadium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+module.exports = PDFWidget
+
+// TODO(jasoncampebll): add verification for pdf object
+function PDFWidget(pdf) {
+ if (!(this instanceof PDFWidget)) {
+ return new PDFWidget(pdf);
+ }
+
+ this.pdf = pdf
+}
+
+PDFWidget.prototype.type = 'Widget';
+
+PDFWidget.prototype.init = function init() {
+ var widget = this
+ var element = document.createElement('canvas')
+
+ widget.update(null, element)
+ return element;
+}
+
+PDFWidget.prototype.update = function update(previous, element) {
+ var widget = this
+ var pdf = widget.pdf
+
+ if (!pdf) {
+ return
+ }
+
+ console.log('pdf', pdf)
+
+ pdf.getPage(1).then(function(page) {
+ var scale = 1.5
+ var viewport = page.getViewport(scale)
+ var context = element.getContext('2d')
+
+ element.height = viewport.height
+ element.width = viewport.width
+
+ page.render({
+ canvasContext: context,
+ viewport: viewport
+ })
+ })
+}
diff --git a/package.json b/package.json
index c7465ec..7cef729 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,8 @@
},
"dependencies": {
"domready": "^1.0.8",
- "mercury": "^14.0.0"
+ "extend": "^2.0.1",
+ "mercury": "^14.0.0",
+ "xtend": "^4.0.0"
}
}
diff --git a/public/index.html b/public/index.html
index aef8597..f379e43 100644
--- a/public/index.html
+++ b/public/index.html
@@ -1 +1,2 @@
+<script type="text/javascript" src="/pdf.js"></script>
<script type="text/javascript" src="/bundle.js"></script>
diff --git a/public/pdf.js b/public/pdf.js
new file mode 100644
index 0000000..fb57286
--- /dev/null
+++ b/public/pdf.js
@@ -0,0 +1,8011 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+/* Copyright 2012 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*jshint globalstrict: false */
+/* globals PDFJS */
+
+// Initializing PDFJS global object (if still undefined)
+if (typeof PDFJS === 'undefined') {
+ (typeof window !== 'undefined' ? window : this).PDFJS = {};
+}
+
+PDFJS.version = '1.1.114';
+PDFJS.build = '3fd44fd';
+
+(function pdfjsWrapper() {
+ // Use strict in our context only - users might not want it
+ 'use strict';
+
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+/* Copyright 2012 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/* globals Cmd, ColorSpace, Dict, MozBlobBuilder, Name, PDFJS, Ref, URL,
+ Promise */
+
+'use strict';
+
+var globalScope = (typeof window === 'undefined') ? this : window;
+
+var isWorker = (typeof window === 'undefined');
+
+var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
+
+var TextRenderingMode = {
+ FILL: 0,
+ STROKE: 1,
+ FILL_STROKE: 2,
+ INVISIBLE: 3,
+ FILL_ADD_TO_PATH: 4,
+ STROKE_ADD_TO_PATH: 5,
+ FILL_STROKE_ADD_TO_PATH: 6,
+ ADD_TO_PATH: 7,
+ FILL_STROKE_MASK: 3,
+ ADD_TO_PATH_FLAG: 4
+};
+
+var ImageKind = {
+ GRAYSCALE_1BPP: 1,
+ RGB_24BPP: 2,
+ RGBA_32BPP: 3
+};
+
+var AnnotationType = {
+ WIDGET: 1,
+ TEXT: 2,
+ LINK: 3
+};
+
+var StreamType = {
+ UNKNOWN: 0,
+ FLATE: 1,
+ LZW: 2,
+ DCT: 3,
+ JPX: 4,
+ JBIG: 5,
+ A85: 6,
+ AHX: 7,
+ CCF: 8,
+ RL: 9
+};
+
+var FontType = {
+ UNKNOWN: 0,
+ TYPE1: 1,
+ TYPE1C: 2,
+ CIDFONTTYPE0: 3,
+ CIDFONTTYPE0C: 4,
+ TRUETYPE: 5,
+ CIDFONTTYPE2: 6,
+ TYPE3: 7,
+ OPENTYPE: 8,
+ TYPE0: 9,
+ MMTYPE1: 10
+};
+
+// The global PDFJS object exposes the API
+// In production, it will be declared outside a global wrapper
+// In development, it will be declared here
+if (!globalScope.PDFJS) {
+ globalScope.PDFJS = {};
+}
+
+globalScope.PDFJS.pdfBug = false;
+
+PDFJS.VERBOSITY_LEVELS = {
+ errors: 0,
+ warnings: 1,
+ infos: 5
+};
+
+// All the possible operations for an operator list.
+var OPS = PDFJS.OPS = {
+ // Intentionally start from 1 so it is easy to spot bad operators that will be
+ // 0's.
+ dependency: 1,
+ setLineWidth: 2,
+ setLineCap: 3,
+ setLineJoin: 4,
+ setMiterLimit: 5,
+ setDash: 6,
+ setRenderingIntent: 7,
+ setFlatness: 8,
+ setGState: 9,
+ save: 10,
+ restore: 11,
+ transform: 12,
+ moveTo: 13,
+ lineTo: 14,
+ curveTo: 15,
+ curveTo2: 16,
+ curveTo3: 17,
+ closePath: 18,
+ rectangle: 19,
+ stroke: 20,
+ closeStroke: 21,
+ fill: 22,
+ eoFill: 23,
+ fillStroke: 24,
+ eoFillStroke: 25,
+ closeFillStroke: 26,
+ closeEOFillStroke: 27,
+ endPath: 28,
+ clip: 29,
+ eoClip: 30,
+ beginText: 31,
+ endText: 32,
+ setCharSpacing: 33,
+ setWordSpacing: 34,
+ setHScale: 35,
+ setLeading: 36,
+ setFont: 37,
+ setTextRenderingMode: 38,
+ setTextRise: 39,
+ moveText: 40,
+ setLeadingMoveText: 41,
+ setTextMatrix: 42,
+ nextLine: 43,
+ showText: 44,
+ showSpacedText: 45,
+ nextLineShowText: 46,
+ nextLineSetSpacingShowText: 47,
+ setCharWidth: 48,
+ setCharWidthAndBounds: 49,
+ setStrokeColorSpace: 50,
+ setFillColorSpace: 51,
+ setStrokeColor: 52,
+ setStrokeColorN: 53,
+ setFillColor: 54,
+ setFillColorN: 55,
+ setStrokeGray: 56,
+ setFillGray: 57,
+ setStrokeRGBColor: 58,
+ setFillRGBColor: 59,
+ setStrokeCMYKColor: 60,
+ setFillCMYKColor: 61,
+ shadingFill: 62,
+ beginInlineImage: 63,
+ beginImageData: 64,
+ endInlineImage: 65,
+ paintXObject: 66,
+ markPoint: 67,
+ markPointProps: 68,
+ beginMarkedContent: 69,
+ beginMarkedContentProps: 70,
+ endMarkedContent: 71,
+ beginCompat: 72,
+ endCompat: 73,
+ paintFormXObjectBegin: 74,
+ paintFormXObjectEnd: 75,
+ beginGroup: 76,
+ endGroup: 77,
+ beginAnnotations: 78,
+ endAnnotations: 79,
+ beginAnnotation: 80,
+ endAnnotation: 81,
+ paintJpegXObject: 82,
+ paintImageMaskXObject: 83,
+ paintImageMaskXObjectGroup: 84,
+ paintImageXObject: 85,
+ paintInlineImageXObject: 86,
+ paintInlineImageXObjectGroup: 87,
+ paintImageXObjectRepeat: 88,
+ paintImageMaskXObjectRepeat: 89,
+ paintSolidColorImageMask: 90,
+ constructPath: 91
+};
+
+// A notice for devs. These are good for things that are helpful to devs, such
+// as warning that Workers were disabled, which is important to devs but not
+// end users.
+function info(msg) {
+ if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.infos) {
+ console.log('Info: ' + msg);
+ }
+}
+
+// Non-fatal warnings.
+function warn(msg) {
+ if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.warnings) {
+ console.log('Warning: ' + msg);
+ }
+}
+
+// Fatal errors that should trigger the fallback UI and halt execution by
+// throwing an exception.
+function error(msg) {
+ if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.errors) {
+ console.log('Error: ' + msg);
+ console.log(backtrace());
+ }
+ UnsupportedManager.notify(UNSUPPORTED_FEATURES.unknown);
+ throw new Error(msg);
+}
+
+function backtrace() {
+ try {
+ throw new Error();
+ } catch (e) {
+ return e.stack ? e.stack.split('\n').slice(2).join('\n') : '';
+ }
+}
+
+function assert(cond, msg) {
+ if (!cond) {
+ error(msg);
+ }
+}
+
+var UNSUPPORTED_FEATURES = PDFJS.UNSUPPORTED_FEATURES = {
+ unknown: 'unknown',
+ forms: 'forms',
+ javaScript: 'javaScript',
+ smask: 'smask',
+ shadingPattern: 'shadingPattern',
+ font: 'font'
+};
+
+var UnsupportedManager = PDFJS.UnsupportedManager =
+ (function UnsupportedManagerClosure() {
+ var listeners = [];
+ return {
+ listen: function (cb) {
+ listeners.push(cb);
+ },
+ notify: function (featureId) {
+ warn('Unsupported feature "' + featureId + '"');
+ for (var i = 0, ii = listeners.length; i < ii; i++) {
+ listeners[i](featureId);
+ }
+ }
+ };
+})();
+
+// Combines two URLs. The baseUrl shall be absolute URL. If the url is an
+// absolute URL, it will be returned as is.
+function combineUrl(baseUrl, url) {
+ if (!url) {
+ return baseUrl;
+ }
+ if (/^[a-z][a-z0-9+\-.]*:/i.test(url)) {
+ return url;
+ }
+ var i;
+ if (url.charAt(0) === '/') {
+ // absolute path
+ i = baseUrl.indexOf('://');
+ if (url.charAt(1) === '/') {
+ ++i;
+ } else {
+ i = baseUrl.indexOf('/', i + 3);
+ }
+ return baseUrl.substring(0, i) + url;
+ } else {
+ // relative path
+ var pathLength = baseUrl.length;
+ i = baseUrl.lastIndexOf('#');
+ pathLength = i >= 0 ? i : pathLength;
+ i = baseUrl.lastIndexOf('?', pathLength);
+ pathLength = i >= 0 ? i : pathLength;
+ var prefixLength = baseUrl.lastIndexOf('/', pathLength);
+ return baseUrl.substring(0, prefixLength + 1) + url;
+ }
+}
+
+// Validates if URL is safe and allowed, e.g. to avoid XSS.
+function isValidUrl(url, allowRelative) {
+ if (!url) {
+ return false;
+ }
+ // RFC 3986 (http://tools.ietf.org/html/rfc3986#section-3.1)
+ // scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
+ var protocol = /^[a-z][a-z0-9+\-.]*(?=:)/i.exec(url);
+ if (!protocol) {
+ return allowRelative;
+ }
+ protocol = protocol[0].toLowerCase();
+ switch (protocol) {
+ case 'http':
+ case 'https':
+ case 'ftp':
+ case 'mailto':
+ case 'tel':
+ return true;
+ default:
+ return false;
+ }
+}
+PDFJS.isValidUrl = isValidUrl;
+
+function shadow(obj, prop, value) {
+ Object.defineProperty(obj, prop, { value: value,
+ enumerable: true,
+ configurable: true,
+ writable: false });
+ return value;
+}
+PDFJS.shadow = shadow;
+
+var PasswordResponses = PDFJS.PasswordResponses = {
+ NEED_PASSWORD: 1,
+ INCORRECT_PASSWORD: 2
+};
+
+var PasswordException = (function PasswordExceptionClosure() {
+ function PasswordException(msg, code) {
+ this.name = 'PasswordException';
+ this.message = msg;
+ this.code = code;
+ }
+
+ PasswordException.prototype = new Error();
+ PasswordException.constructor = PasswordException;
+
+ return PasswordException;
+})();
+PDFJS.PasswordException = PasswordException;
+
+var UnknownErrorException = (function UnknownErrorExceptionClosure() {
+ function UnknownErrorException(msg, details) {
+ this.name = 'UnknownErrorException';
+ this.message = msg;
+ this.details = details;
+ }
+
+ UnknownErrorException.prototype = new Error();
+ UnknownErrorException.constructor = UnknownErrorException;
+
+ return UnknownErrorException;
+})();
+PDFJS.UnknownErrorException = UnknownErrorException;
+
+var InvalidPDFException = (function InvalidPDFExceptionClosure() {
+ function InvalidPDFException(msg) {
+ this.name = 'InvalidPDFException';
+ this.message = msg;
+ }
+
+ InvalidPDFException.prototype = new Error();
+ InvalidPDFException.constructor = InvalidPDFException;
+
+ return InvalidPDFException;
+})();
+PDFJS.InvalidPDFException = InvalidPDFException;
+
+var MissingPDFException = (function MissingPDFExceptionClosure() {
+ function MissingPDFException(msg) {
+ this.name = 'MissingPDFException';
+ this.message = msg;
+ }
+
+ MissingPDFException.prototype = new Error();
+ MissingPDFException.constructor = MissingPDFException;
+
+ return MissingPDFException;
+})();
+PDFJS.MissingPDFException = MissingPDFException;
+
+var UnexpectedResponseException =
+ (function UnexpectedResponseExceptionClosure() {
+ function UnexpectedResponseException(msg, status) {
+ this.name = 'UnexpectedResponseException';
+ this.message = msg;
+ this.status = status;
+ }
+
+ UnexpectedResponseException.prototype = new Error();
+ UnexpectedResponseException.constructor = UnexpectedResponseException;
+
+ return UnexpectedResponseException;
+})();
+PDFJS.UnexpectedResponseException = UnexpectedResponseException;
+
+var NotImplementedException = (function NotImplementedExceptionClosure() {
+ function NotImplementedException(msg) {
+ this.message = msg;
+ }
+
+ NotImplementedException.prototype = new Error();
+ NotImplementedException.prototype.name = 'NotImplementedException';
+ NotImplementedException.constructor = NotImplementedException;
+
+ return NotImplementedException;
+})();
+
+var MissingDataException = (function MissingDataExceptionClosure() {
+ function MissingDataException(begin, end) {
+ this.begin = begin;
+ this.end = end;
+ this.message = 'Missing data [' + begin + ', ' + end + ')';
+ }
+
+ MissingDataException.prototype = new Error();
+ MissingDataException.prototype.name = 'MissingDataException';
+ MissingDataException.constructor = MissingDataException;
+
+ return MissingDataException;
+})();
+
+var XRefParseException = (function XRefParseExceptionClosure() {
+ function XRefParseException(msg) {
+ this.message = msg;
+ }
+
+ XRefParseException.prototype = new Error();
+ XRefParseException.prototype.name = 'XRefParseException';
+ XRefParseException.constructor = XRefParseException;
+
+ return XRefParseException;
+})();
+
+
+function bytesToString(bytes) {
+ assert(bytes !== null && typeof bytes === 'object' &&
+ bytes.length !== undefined, 'Invalid argument for bytesToString');
+ var length = bytes.length;
+ var MAX_ARGUMENT_COUNT = 8192;
+ if (length < MAX_ARGUMENT_COUNT) {
+ return String.fromCharCode.apply(null, bytes);
+ }
+ var strBuf = [];
+ for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
+ var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
+ var chunk = bytes.subarray(i, chunkEnd);
+ strBuf.push(String.fromCharCode.apply(null, chunk));
+ }
+ return strBuf.join('');
+}
+
+function stringToBytes(str) {
+ assert(typeof str === 'string', 'Invalid argument for stringToBytes');
+ var length = str.length;
+ var bytes = new Uint8Array(length);
+ for (var i = 0; i < length; ++i) {
+ bytes[i] = str.charCodeAt(i) & 0xFF;
+ }
+ return bytes;
+}
+
+function string32(value) {
+ return String.fromCharCode((value >> 24) & 0xff, (value >> 16) & 0xff,
+ (value >> 8) & 0xff, value & 0xff);
+}
+
+function log2(x) {
+ var n = 1, i = 0;
+ while (x > n) {
+ n <<= 1;
+ i++;
+ }
+ return i;
+}
+
+function readInt8(data, start) {
+ return (data[start] << 24) >> 24;
+}
+
+function readUint16(data, offset) {
+ return (data[offset] << 8) | data[offset + 1];
+}
+
+function readUint32(data, offset) {
+ return ((data[offset] << 24) | (data[offset + 1] << 16) |
+ (data[offset + 2] << 8) | data[offset + 3]) >>> 0;
+}
+
+// Lazy test the endianness of the platform
+// NOTE: This will be 'true' for simulated TypedArrays
+function isLittleEndian() {
+ var buffer8 = new Uint8Array(2);
+ buffer8[0] = 1;
+ var buffer16 = new Uint16Array(buffer8.buffer);
+ return (buffer16[0] === 1);
+}
+
+Object.defineProperty(PDFJS, 'isLittleEndian', {
+ configurable: true,
+ get: function PDFJS_isLittleEndian() {
+ return shadow(PDFJS, 'isLittleEndian', isLittleEndian());
+ }
+});
+
+ // Lazy test if the userAgant support CanvasTypedArrays
+function hasCanvasTypedArrays() {
+ var canvas = document.createElement('canvas');
+ canvas.width = canvas.height = 1;
+ var ctx = canvas.getContext('2d');
+ var imageData = ctx.createImageData(1, 1);
+ return (typeof imageData.data.buffer !== 'undefined');
+}
+
+Object.defineProperty(PDFJS, 'hasCanvasTypedArrays', {
+ configurable: true,
+ get: function PDFJS_hasCanvasTypedArrays() {
+ return shadow(PDFJS, 'hasCanvasTypedArrays', hasCanvasTypedArrays());
+ }
+});
+
+var Uint32ArrayView = (function Uint32ArrayViewClosure() {
+
+ function Uint32ArrayView(buffer, length) {
+ this.buffer = buffer;
+ this.byteLength = buffer.length;
+ this.length = length === undefined ? (this.byteLength >> 2) : length;
+ ensureUint32ArrayViewProps(this.length);
+ }
+ Uint32ArrayView.prototype = Object.create(null);
+
+ var uint32ArrayViewSetters = 0;
+ function createUint32ArrayProp(index) {
+ return {
+ get: function () {
+ var buffer = this.buffer, offset = index << 2;
+ return (buffer[offset] | (buffer[offset + 1] << 8) |
+ (buffer[offset + 2] << 16) | (buffer[offset + 3] << 24)) >>> 0;
+ },
+ set: function (value) {
+ var buffer = this.buffer, offset = index << 2;
+ buffer[offset] = value & 255;
+ buffer[offset + 1] = (value >> 8) & 255;
+ buffer[offset + 2] = (value >> 16) & 255;
+ buffer[offset + 3] = (value >>> 24) & 255;
+ }
+ };
+ }
+
+ function ensureUint32ArrayViewProps(length) {
+ while (uint32ArrayViewSetters < length) {
+ Object.defineProperty(Uint32ArrayView.prototype,
+ uint32ArrayViewSetters,
+ createUint32ArrayProp(uint32ArrayViewSetters));
+ uint32ArrayViewSetters++;
+ }
+ }
+
+ return Uint32ArrayView;
+})();
+
+var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
+
+var Util = PDFJS.Util = (function UtilClosure() {
+ function Util() {}
+
+ var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];
+
+ // makeCssRgb() can be called thousands of times. Using |rgbBuf| avoids
+ // creating many intermediate strings.
+ Util.makeCssRgb = function Util_makeCssRgb(r, g, b) {
+ rgbBuf[1] = r;
+ rgbBuf[3] = g;
+ rgbBuf[5] = b;
+ return rgbBuf.join('');
+ };
+
+ // Concatenates two transformation matrices together and returns the result.
+ Util.transform = function Util_transform(m1, m2) {
+ return [
+ m1[0] * m2[0] + m1[2] * m2[1],
+ m1[1] * m2[0] + m1[3] * m2[1],
+ m1[0] * m2[2] + m1[2] * m2[3],
+ m1[1] * m2[2] + m1[3] * m2[3],
+ m1[0] * m2[4] + m1[2] * m2[5] + m1[4],
+ m1[1] * m2[4] + m1[3] * m2[5] + m1[5]
+ ];
+ };
+
+ // For 2d affine transforms
+ Util.applyTransform = function Util_applyTransform(p, m) {
+ var xt = p[0] * m[0] + p[1] * m[2] + m[4];
+ var yt = p[0] * m[1] + p[1] * m[3] + m[5];
+ return [xt, yt];
+ };
+
+ Util.applyInverseTransform = function Util_applyInverseTransform(p, m) {
+ var d = m[0] * m[3] - m[1] * m[2];
+ var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
+ var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
+ return [xt, yt];
+ };
+
+ // Applies the transform to the rectangle and finds the minimum axially
+ // aligned bounding box.
+ Util.getAxialAlignedBoundingBox =
+ function Util_getAxialAlignedBoundingBox(r, m) {
+
+ var p1 = Util.applyTransform(r, m);
+ var p2 = Util.applyTransform(r.slice(2, 4), m);
+ var p3 = Util.applyTransform([r[0], r[3]], m);
+ var p4 = Util.applyTransform([r[2], r[1]], m);
+ return [
+ Math.min(p1[0], p2[0], p3[0], p4[0]),
+ Math.min(p1[1], p2[1], p3[1], p4[1]),
+ Math.max(p1[0], p2[0], p3[0], p4[0]),
+ Math.max(p1[1], p2[1], p3[1], p4[1])
+ ];
+ };
+
+ Util.inverseTransform = function Util_inverseTransform(m) {
+ var d = m[0] * m[3] - m[1] * m[2];
+ return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d,
+ (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
+ };
+
+ // Apply a generic 3d matrix M on a 3-vector v:
+ // | a b c | | X |
+ // | d e f | x | Y |
+ // | g h i | | Z |
+ // M is assumed to be serialized as [a,b,c,d,e,f,g,h,i],
+ // with v as [X,Y,Z]
+ Util.apply3dTransform = function Util_apply3dTransform(m, v) {
+ return [
+ m[0] * v[0] + m[1] * v[1] + m[2] * v[2],
+ m[3] * v[0] + m[4] * v[1] + m[5] * v[2],
+ m[6] * v[0] + m[7] * v[1] + m[8] * v[2]
+ ];
+ };
+
+ // This calculation uses Singular Value Decomposition.
+ // The SVD can be represented with formula A = USV. We are interested in the
+ // matrix S here because it represents the scale values.
+ Util.singularValueDecompose2dScale =
+ function Util_singularValueDecompose2dScale(m) {
+
+ var transpose = [m[0], m[2], m[1], m[3]];
+
+ // Multiply matrix m with its transpose.
+ var a = m[0] * transpose[0] + m[1] * transpose[2];
+ var b = m[0] * transpose[1] + m[1] * transpose[3];
+ var c = m[2] * transpose[0] + m[3] * transpose[2];
+ var d = m[2] * transpose[1] + m[3] * transpose[3];
+
+ // Solve the second degree polynomial to get roots.
+ var first = (a + d) / 2;
+ var second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;
+ var sx = first + second || 1;
+ var sy = first - second || 1;
+
+ // Scale values are the square roots of the eigenvalues.
+ return [Math.sqrt(sx), Math.sqrt(sy)];
+ };
+
+ // Normalize rectangle rect=[x1, y1, x2, y2] so that (x1,y1) < (x2,y2)
+ // For coordinate systems whose origin lies in the bottom-left, this
+ // means normalization to (BL,TR) ordering. For systems with origin in the
+ // top-left, this means (TL,BR) ordering.
+ Util.normalizeRect = function Util_normalizeRect(rect) {
+ var r = rect.slice(0); // clone rect
+ if (rect[0] > rect[2]) {
+ r[0] = rect[2];
+ r[2] = rect[0];
+ }
+ if (rect[1] > rect[3]) {
+ r[1] = rect[3];
+ r[3] = rect[1];
+ }
+ return r;
+ };
+
+ // Returns a rectangle [x1, y1, x2, y2] corresponding to the
+ // intersection of rect1 and rect2. If no intersection, returns 'false'
+ // The rectangle coordinates of rect1, rect2 should be [x1, y1, x2, y2]
+ Util.intersect = function Util_intersect(rect1, rect2) {
+ function compare(a, b) {
+ return a - b;
+ }
+
+ // Order points along the axes
+ var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare),
+ orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare),
+ result = [];
+
+ rect1 = Util.normalizeRect(rect1);
+ rect2 = Util.normalizeRect(rect2);
+
+ // X: first and second points belong to different rectangles?
+ if ((orderedX[0] === rect1[0] && orderedX[1] === rect2[0]) ||
+ (orderedX[0] === rect2[0] && orderedX[1] === rect1[0])) {
+ // Intersection must be between second and third points
+ result[0] = orderedX[1];
+ result[2] = orderedX[2];
+ } else {
+ return false;
+ }
+
+ // Y: first and second points belong to different rectangles?
+ if ((orderedY[0] === rect1[1] && orderedY[1] === rect2[1]) ||
+ (orderedY[0] === rect2[1] && orderedY[1] === rect1[1])) {
+ // Intersection must be between second and third points
+ result[1] = orderedY[1];
+ result[3] = orderedY[2];
+ } else {
+ return false;
+ }
+
+ return result;
+ };
+
+ Util.sign = function Util_sign(num) {
+ return num < 0 ? -1 : 1;
+ };
+
+ Util.appendToArray = function Util_appendToArray(arr1, arr2) {
+ Array.prototype.push.apply(arr1, arr2);
+ };
+
+ Util.prependToArray = function Util_prependToArray(arr1, arr2) {
+ Array.prototype.unshift.apply(arr1, arr2);
+ };
+
+ Util.extendObj = function extendObj(obj1, obj2) {
+ for (var key in obj2) {
+ obj1[key] = obj2[key];
+ }
+ };
+
+ Util.getInheritableProperty = function Util_getInheritableProperty(dict,
+ name) {
+ while (dict && !dict.has(name)) {
+ dict = dict.get('Parent');
+ }
+ if (!dict) {
+ return null;
+ }
+ return dict.get(name);
+ };
+
+ Util.inherit = function Util_inherit(sub, base, prototype) {
+ sub.prototype = Object.create(base.prototype);
+ sub.prototype.constructor = sub;
+ for (var prop in prototype) {
+ sub.prototype[prop] = prototype[prop];
+ }
+ };
+
+ Util.loadScript = function Util_loadScript(src, callback) {
+ var script = document.createElement('script');
+ var loaded = false;
+ script.setAttribute('src', src);
+ if (callback) {
+ script.onload = function() {
+ if (!loaded) {
+ callback();
+ }
+ loaded = true;
+ };
+ }
+ document.getElementsByTagName('head')[0].appendChild(script);
+ };
+
+ return Util;
+})();
+
+/**
+ * PDF page viewport created based on scale, rotation and offset.
+ * @class
+ * @alias PDFJS.PageViewport
+ */
+var PageViewport = PDFJS.PageViewport = (function PageViewportClosure() {
+ /**
+ * @constructor
+ * @private
+ * @param viewBox {Array} xMin, yMin, xMax and yMax coordinates.
+ * @param scale {number} scale of the viewport.
+ * @param rotation {number} rotations of the viewport in degrees.
+ * @param offsetX {number} offset X
+ * @param offsetY {number} offset Y
+ * @param dontFlip {boolean} if true, axis Y will not be flipped.
+ */
+ function PageViewport(viewBox, scale, rotation, offsetX, offsetY, dontFlip) {
+ this.viewBox = viewBox;
+ this.scale = scale;
+ this.rotation = rotation;
+ this.offsetX = offsetX;
+ this.offsetY = offsetY;
+
+ // creating transform to convert pdf coordinate system to the normal
+ // canvas like coordinates taking in account scale and rotation
+ var centerX = (viewBox[2] + viewBox[0]) / 2;
+ var centerY = (viewBox[3] + viewBox[1]) / 2;
+ var rotateA, rotateB, rotateC, rotateD;
+ rotation = rotation % 360;
+ rotation = rotation < 0 ? rotation + 360 : rotation;
+ switch (rotation) {
+ case 180:
+ rotateA = -1; rotateB = 0; rotateC = 0; rotateD = 1;
+ break;
+ case 90:
+ rotateA = 0; rotateB = 1; rotateC = 1; rotateD = 0;
+ break;
+ case 270:
+ rotateA = 0; rotateB = -1; rotateC = -1; rotateD = 0;
+ break;
+ //case 0:
+ default:
+ rotateA = 1; rotateB = 0; rotateC = 0; rotateD = -1;
+ break;
+ }
+
+ if (dontFlip) {
+ rotateC = -rotateC; rotateD = -rotateD;
+ }
+
+ var offsetCanvasX, offsetCanvasY;
+ var width, height;
+ if (rotateA === 0) {
+ offsetCanvasX = Math.abs(centerY - viewBox[1]) * scale + offsetX;
+ offsetCanvasY = Math.abs(centerX - viewBox[0]) * scale + offsetY;
+ width = Math.abs(viewBox[3] - viewBox[1]) * scale;
+ height = Math.abs(viewBox[2] - viewBox[0]) * scale;
+ } else {
+ offsetCanvasX = Math.abs(centerX - viewBox[0]) * scale + offsetX;
+ offsetCanvasY = Math.abs(centerY - viewBox[1]) * scale + offsetY;
+ width = Math.abs(viewBox[2] - viewBox[0]) * scale;
+ height = Math.abs(viewBox[3] - viewBox[1]) * scale;
+ }
+ // creating transform for the following operations:
+ // translate(-centerX, -centerY), rotate and flip vertically,
+ // scale, and translate(offsetCanvasX, offsetCanvasY)
+ this.transform = [
+ rotateA * scale,
+ rotateB * scale,
+ rotateC * scale,
+ rotateD * scale,
+ offsetCanvasX - rotateA * scale * centerX - rotateC * scale * centerY,
+ offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY
+ ];
+
+ this.width = width;
+ this.height = height;
+ this.fontScale = scale;
+ }
+ PageViewport.prototype = /** @lends PDFJS.PageViewport.prototype */ {
+ /**
+ * Clones viewport with additional properties.
+ * @param args {Object} (optional) If specified, may contain the 'scale' or
+ * 'rotation' properties to override the corresponding properties in
+ * the cloned viewport.
+ * @returns {PDFJS.PageViewport} Cloned viewport.
+ */
+ clone: function PageViewPort_clone(args) {
+ args = args || {};
+ var scale = 'scale' in args ? args.scale : this.scale;
+ var rotation = 'rotation' in args ? args.rotation : this.rotation;
+ return new PageViewport(this.viewBox.slice(), scale, rotation,
+ this.offsetX, this.offsetY, args.dontFlip);
+ },
+ /**
+ * Converts PDF point to the viewport coordinates. For examples, useful for
+ * converting PDF location into canvas pixel coordinates.
+ * @param x {number} X coordinate.
+ * @param y {number} Y coordinate.
+ * @returns {Object} Object that contains 'x' and 'y' properties of the
+ * point in the viewport coordinate space.
+ * @see {@link convertToPdfPoint}
+ * @see {@link convertToViewportRectangle}
+ */
+ convertToViewportPoint: function PageViewport_convertToViewportPoint(x, y) {
+ return Util.applyTransform([x, y], this.transform);
+ },
+ /**
+ * Converts PDF rectangle to the viewport coordinates.
+ * @param rect {Array} xMin, yMin, xMax and yMax coordinates.
+ * @returns {Array} Contains corresponding coordinates of the rectangle
+ * in the viewport coordinate space.
+ * @see {@link convertToViewportPoint}
+ */
+ convertToViewportRectangle:
+ function PageViewport_convertToViewportRectangle(rect) {
+ var tl = Util.applyTransform([rect[0], rect[1]], this.transform);
+ var br = Util.applyTransform([rect[2], rect[3]], this.transform);
+ return [tl[0], tl[1], br[0], br[1]];
+ },
+ /**
+ * Converts viewport coordinates to the PDF location. For examples, useful
+ * for converting canvas pixel location into PDF one.
+ * @param x {number} X coordinate.
+ * @param y {number} Y coordinate.
+ * @returns {Object} Object that contains 'x' and 'y' properties of the
+ * point in the PDF coordinate space.
+ * @see {@link convertToViewportPoint}
+ */
+ convertToPdfPoint: function PageViewport_convertToPdfPoint(x, y) {
+ return Util.applyInverseTransform([x, y], this.transform);
+ }
+ };
+ return PageViewport;
+})();
+
+var PDFStringTranslateTable = [
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0x2D8, 0x2C7, 0x2C6, 0x2D9, 0x2DD, 0x2DB, 0x2DA, 0x2DC, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014,
+ 0x2013, 0x192, 0x2044, 0x2039, 0x203A, 0x2212, 0x2030, 0x201E, 0x201C,
+ 0x201D, 0x2018, 0x2019, 0x201A, 0x2122, 0xFB01, 0xFB02, 0x141, 0x152, 0x160,
+ 0x178, 0x17D, 0x131, 0x142, 0x153, 0x161, 0x17E, 0, 0x20AC
+];
+
+function stringToPDFString(str) {
+ var i, n = str.length, strBuf = [];
+ if (str[0] === '\xFE' && str[1] === '\xFF') {
+ // UTF16BE BOM
+ for (i = 2; i < n; i += 2) {
+ strBuf.push(String.fromCharCode(
+ (str.charCodeAt(i) << 8) | str.charCodeAt(i + 1)));
+ }
+ } else {
+ for (i = 0; i < n; ++i) {
+ var code = PDFStringTranslateTable[str.charCodeAt(i)];
+ strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
+ }
+ }
+ return strBuf.join('');
+}
+
+function stringToUTF8String(str) {
+ return decodeURIComponent(escape(str));
+}
+
+function isEmptyObj(obj) {
+ for (var key in obj) {
+ return false;
+ }
+ return true;
+}
+
+function isBool(v) {
+ return typeof v === 'boolean';
+}
+
+function isInt(v) {
+ return typeof v === 'number' && ((v | 0) === v);
+}
+
+function isNum(v) {
+ return typeof v === 'number';
+}
+
+function isString(v) {
+ return typeof v === 'string';
+}
+
+function isName(v) {
+ return v instanceof Name;
+}
+
+function isCmd(v, cmd) {
+ return v instanceof Cmd && (cmd === undefined || v.cmd === cmd);
+}
+
+function isDict(v, type) {
+ if (!(v instanceof Dict)) {
+ return false;
+ }
+ if (!type) {
+ return true;
+ }
+ var dictType = v.get('Type');
+ return isName(dictType) && dictType.name === type;
+}
+
+function isArray(v) {
+ return v instanceof Array;
+}
+
+function isStream(v) {
+ return typeof v === 'object' && v !== null && v.getBytes !== undefined;
+}
+
+function isArrayBuffer(v) {
+ return typeof v === 'object' && v !== null && v.byteLength !== undefined;
+}
+
+function isRef(v) {
+ return v instanceof Ref;
+}
+
+/**
+ * Promise Capability object.
+ *
+ * @typedef {Object} PromiseCapability
+ * @property {Promise} promise - A promise object.
+ * @property {function} resolve - Fullfills the promise.
+ * @property {function} reject - Rejects the promise.
+ */
+
+/**
+ * Creates a promise capability object.
+ * @alias PDFJS.createPromiseCapability
+ *
+ * @return {PromiseCapability} A capability object contains:
+ * - a Promise, resolve and reject methods.
+ */
+function createPromiseCapability() {
+ var capability = {};
+ capability.promise = new Promise(function (resolve, reject) {
+ capability.resolve = resolve;
+ capability.reject = reject;
+ });
+ return capability;
+}
+
+PDFJS.createPromiseCapability = createPromiseCapability;
+
+/**
+ * Polyfill for Promises:
+ * The following promise implementation tries to generally implement the
+ * Promise/A+ spec. Some notable differences from other promise libaries are:
+ * - There currently isn't a seperate deferred and promise object.
+ * - Unhandled rejections eventually show an error if they aren't handled.
+ *
+ * Based off of the work in:
+ * https://bugzilla.mozilla.org/show_bug.cgi?id=810490
+ */
+(function PromiseClosure() {
+ if (globalScope.Promise) {
+ // Promises existing in the DOM/Worker, checking presence of all/resolve
+ if (typeof globalScope.Promise.all !== 'function') {
+ globalScope.Promise.all = function (iterable) {
+ var count = 0, results = [], resolve, reject;
+ var promise = new globalScope.Promise(function (resolve_, reject_) {
+ resolve = resolve_;
+ reject = reject_;
+ });
+ iterable.forEach(function (p, i) {
+ count++;
+ p.then(function (result) {
+ results[i] = result;
+ count--;
+ if (count === 0) {
+ resolve(results);
+ }
+ }, reject);
+ });
+ if (count === 0) {
+ resolve(results);
+ }
+ return promise;
+ };
+ }
+ if (typeof globalScope.Promise.resolve !== 'function') {
+ globalScope.Promise.resolve = function (value) {
+ return new globalScope.Promise(function (resolve) { resolve(value); });
+ };
+ }
+ if (typeof globalScope.Promise.reject !== 'function') {
+ globalScope.Promise.reject = function (reason) {
+ return new globalScope.Promise(function (resolve, reject) {
+ reject(reason);
+ });
+ };
+ }
+ if (typeof globalScope.Promise.prototype.catch !== 'function') {
+ globalScope.Promise.prototype.catch = function (onReject) {
+ return globalScope.Promise.prototype.then(undefined, onReject);
+ };
+ }
+ return;
+ }
+ var STATUS_PENDING = 0;
+ var STATUS_RESOLVED = 1;
+ var STATUS_REJECTED = 2;
+
+ // In an attempt to avoid silent exceptions, unhandled rejections are
+ // tracked and if they aren't handled in a certain amount of time an
+ // error is logged.
+ var REJECTION_TIMEOUT = 500;
+
+ var HandlerManager = {
+ handlers: [],
+ running: false,
+ unhandledRejections: [],
+ pendingRejectionCheck: false,
+
+ scheduleHandlers: function scheduleHandlers(promise) {
+ if (promise._status === STATUS_PENDING) {
+ return;
+ }
+
+ this.handlers = this.handlers.concat(promise._handlers);
+ promise._handlers = [];
+
+ if (this.running) {
+ return;
+ }
+ this.running = true;
+
+ setTimeout(this.runHandlers.bind(this), 0);
+ },
+
+ runHandlers: function runHandlers() {
+ var RUN_TIMEOUT = 1; // ms
+ var timeoutAt = Date.now() + RUN_TIMEOUT;
+ while (this.handlers.length > 0) {
+ var handler = this.handlers.shift();
+
+ var nextStatus = handler.thisPromise._status;
+ var nextValue = handler.thisPromise._value;
+
+ try {
+ if (nextStatus === STATUS_RESOLVED) {
+ if (typeof handler.onResolve === 'function') {
+ nextValue = handler.onResolve(nextValue);
+ }
+ } else if (typeof handler.onReject === 'function') {
+ nextValue = handler.onReject(nextValue);
+ nextStatus = STATUS_RESOLVED;
+
+ if (handler.thisPromise._unhandledRejection) {
+ this.removeUnhandeledRejection(handler.thisPromise);
+ }
+ }
+ } catch (ex) {
+ nextStatus = STATUS_REJECTED;
+ nextValue = ex;
+ }
+
+ handler.nextPromise._updateStatus(nextStatus, nextValue);
+ if (Date.now() >= timeoutAt) {
+ break;
+ }
+ }
+
+ if (this.handlers.length > 0) {
+ setTimeout(this.runHandlers.bind(this), 0);
+ return;
+ }
+
+ this.running = false;
+ },
+
+ addUnhandledRejection: function addUnhandledRejection(promise) {
+ this.unhandledRejections.push({
+ promise: promise,
+ time: Date.now()
+ });
+ this.scheduleRejectionCheck();
+ },
+
+ removeUnhandeledRejection: function removeUnhandeledRejection(promise) {
+ promise._unhandledRejection = false;
+ for (var i = 0; i < this.unhandledRejections.length; i++) {
+ if (this.unhandledRejections[i].promise === promise) {
+ this.unhandledRejections.splice(i);
+ i--;
+ }
+ }
+ },
+
+ scheduleRejectionCheck: function scheduleRejectionCheck() {
+ if (this.pendingRejectionCheck) {
+ return;
+ }
+ this.pendingRejectionCheck = true;
+ setTimeout(function rejectionCheck() {
+ this.pendingRejectionCheck = false;
+ var now = Date.now();
+ for (var i = 0; i < this.unhandledRejections.length; i++) {
+ if (now - this.unhandledRejections[i].time > REJECTION_TIMEOUT) {
+ var unhandled = this.unhandledRejections[i].promise._value;
+ var msg = 'Unhandled rejection: ' + unhandled;
+ if (unhandled.stack) {
+ msg += '\n' + unhandled.stack;
+ }
+ warn(msg);
+ this.unhandledRejections.splice(i);
+ i--;
+ }
+ }
+ if (this.unhandledRejections.length) {
+ this.scheduleRejectionCheck();
+ }
+ }.bind(this), REJECTION_TIMEOUT);
+ }
+ };
+
+ function Promise(resolver) {
+ this._status = STATUS_PENDING;
+ this._handlers = [];
+ try {
+ resolver.call(this, this._resolve.bind(this), this._reject.bind(this));
+ } catch (e) {
+ this._reject(e);
+ }
+ }
+ /**
+ * Builds a promise that is resolved when all the passed in promises are
+ * resolved.
+ * @param {array} array of data and/or promises to wait for.
+ * @return {Promise} New dependant promise.
+ */
+ Promise.all = function Promise_all(promises) {
+ var resolveAll, rejectAll;
+ var deferred = new Promise(function (resolve, reject) {
+ resolveAll = resolve;
+ rejectAll = reject;
+ });
+ var unresolved = promises.length;
+ var results = [];
+ if (unresolved === 0) {
+ resolveAll(results);
+ return deferred;
+ }
+ function reject(reason) {
+ if (deferred._status === STATUS_REJECTED) {
+ return;
+ }
+ results = [];
+ rejectAll(reason);
+ }
+ for (var i = 0, ii = promises.length; i < ii; ++i) {
+ var promise = promises[i];
+ var resolve = (function(i) {
+ return function(value) {
+ if (deferred._status === STATUS_REJECTED) {
+ return;
+ }
+ results[i] = value;
+ unresolved--;
+ if (unresolved === 0) {
+ resolveAll(results);
+ }
+ };
+ })(i);
+ if (Promise.isPromise(promise)) {
+ promise.then(resolve, reject);
+ } else {
+ resolve(promise);
+ }
+ }
+ return deferred;
+ };
+
+ /**
+ * Checks if the value is likely a promise (has a 'then' function).
+ * @return {boolean} true if value is thenable
+ */
+ Promise.isPromise = function Promise_isPromise(value) {
+ return value && typeof value.then === 'function';
+ };
+
+ /**
+ * Creates resolved promise
+ * @param value resolve value
+ * @returns {Promise}
+ */
+ Promise.resolve = function Promise_resolve(value) {
+ return new Promise(function (resolve) { resolve(value); });
+ };
+
+ /**
+ * Creates rejected promise
+ * @param reason rejection value
+ * @returns {Promise}
+ */
+ Promise.reject = function Promise_reject(reason) {
+ return new Promise(function (resolve, reject) { reject(reason); });
+ };
+
+ Promise.prototype = {
+ _status: null,
+ _value: null,
+ _handlers: null,
+ _unhandledRejection: null,
+
+ _updateStatus: function Promise__updateStatus(status, value) {
+ if (this._status === STATUS_RESOLVED ||
+ this._status === STATUS_REJECTED) {
+ return;
+ }
+
+ if (status === STATUS_RESOLVED &&
+ Promise.isPromise(value)) {
+ value.then(this._updateStatus.bind(this, STATUS_RESOLVED),
+ this._updateStatus.bind(this, STATUS_REJECTED));
+ return;
+ }
+
+ this._status = status;
+ this._value = value;
+
+ if (status === STATUS_REJECTED && this._handlers.length === 0) {
+ this._unhandledRejection = true;
+ HandlerManager.addUnhandledRejection(this);
+ }
+
+ HandlerManager.scheduleHandlers(this);
+ },
+
+ _resolve: function Promise_resolve(value) {
+ this._updateStatus(STATUS_RESOLVED, value);
+ },
+
+ _reject: function Promise_reject(reason) {
+ this._updateStatus(STATUS_REJECTED, reason);
+ },
+
+ then: function Promise_then(onResolve, onReject) {
+ var nextPromise = new Promise(function (resolve, reject) {
+ this.resolve = resolve;
+ this.reject = reject;
+ });
+ this._handlers.push({
+ thisPromise: this,
+ onResolve: onResolve,
+ onReject: onReject,
+ nextPromise: nextPromise
+ });
+ HandlerManager.scheduleHandlers(this);
+ return nextPromise;
+ },
+
+ catch: function Promise_catch(onReject) {
+ return this.then(undefined, onReject);
+ }
+ };
+
+ globalScope.Promise = Promise;
+})();
+
+var StatTimer = (function StatTimerClosure() {
+ function rpad(str, pad, length) {
+ while (str.length < length) {
+ str += pad;
+ }
+ return str;
+ }
+ function StatTimer() {
+ this.started = {};
+ this.times = [];
+ this.enabled = true;
+ }
+ StatTimer.prototype = {
+ time: function StatTimer_time(name) {
+ if (!this.enabled) {
+ return;
+ }
+ if (name in this.started) {
+ warn('Timer is already running for ' + name);
+ }
+ this.started[name] = Date.now();
+ },
+ timeEnd: function StatTimer_timeEnd(name) {
+ if (!this.enabled) {
+ return;
+ }
+ if (!(name in this.started)) {
+ warn('Timer has not been started for ' + name);
+ }
+ this.times.push({
+ 'name': name,
+ 'start': this.started[name],
+ 'end': Date.now()
+ });
+ // Remove timer from started so it can be called again.
+ delete this.started[name];
+ },
+ toString: function StatTimer_toString() {
+ var i, ii;
+ var times = this.times;
+ var out = '';
+ // Find the longest name for padding purposes.
+ var longest = 0;
+ for (i = 0, ii = times.length; i < ii; ++i) {
+ var name = times[i]['name'];
+ if (name.length > longest) {
+ longest = name.length;
+ }
+ }
+ for (i = 0, ii = times.length; i < ii; ++i) {
+ var span = times[i];
+ var duration = span.end - span.start;
+ out += rpad(span['name'], ' ', longest) + ' ' + duration + 'ms\n';
+ }
+ return out;
+ }
+ };
+ return StatTimer;
+})();
+
+PDFJS.createBlob = function createBlob(data, contentType) {
+ if (typeof Blob !== 'undefined') {
+ return new Blob([data], { type: contentType });
+ }
+ // Blob builder is deprecated in FF14 and removed in FF18.
+ var bb = new MozBlobBuilder();
+ bb.append(data);
+ return bb.getBlob(contentType);
+};
+
+PDFJS.createObjectURL = (function createObjectURLClosure() {
+ // Blob/createObjectURL is not available, falling back to data schema.
+ var digits =
+ 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+
+ return function createObjectURL(data, contentType) {
+ if (!PDFJS.disableCreateObjectURL &&
+ typeof URL !== 'undefined' && URL.createObjectURL) {
+ var blob = PDFJS.createBlob(data, contentType);
+ return URL.createObjectURL(blob);
+ }
+
+ var buffer = 'data:' + contentType + ';base64,';
+ for (var i = 0, ii = data.length; i < ii; i += 3) {
+ var b1 = data[i] & 0xFF;
+ var b2 = data[i + 1] & 0xFF;
+ var b3 = data[i + 2] & 0xFF;
+ var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);
+ var d3 = i + 1 < ii ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;
+ var d4 = i + 2 < ii ? (b3 & 0x3F) : 64;
+ buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
+ }
+ return buffer;
+ };
+})();
+
+function MessageHandler(name, comObj) {
+ this.name = name;
+ this.comObj = comObj;
+ this.callbackIndex = 1;
+ this.postMessageTransfers = true;
+ var callbacksCapabilities = this.callbacksCapabilities = {};
+ var ah = this.actionHandler = {};
+
+ ah['console_log'] = [function ahConsoleLog(data) {
+ console.log.apply(console, data);
+ }];
+ ah['console_error'] = [function ahConsoleError(data) {
+ console.error.apply(console, data);
+ }];
+ ah['_unsupported_feature'] = [function ah_unsupportedFeature(data) {
+ UnsupportedManager.notify(data);
+ }];
+
+ comObj.onmessage = function messageHandlerComObjOnMessage(event) {
+ var data = event.data;
+ if (data.isReply) {
+ var callbackId = data.callbackId;
+ if (data.callbackId in callbacksCapabilities) {
+ var callback = callbacksCapabilities[callbackId];
+ delete callbacksCapabilities[callbackId];
+ if ('error' in data) {
+ callback.reject(data.error);
+ } else {
+ callback.resolve(data.data);
+ }
+ } else {
+ error('Cannot resolve callback ' + callbackId);
+ }
+ } else if (data.action in ah) {
+ var action = ah[data.action];
+ if (data.callbackId) {
+ Promise.resolve().then(function () {
+ return action[0].call(action[1], data.data);
+ }).then(function (result) {
+ comObj.postMessage({
+ isReply: true,
+ callbackId: data.callbackId,
+ data: result
+ });
+ }, function (reason) {
+ comObj.postMessage({
+ isReply: true,
+ callbackId: data.callbackId,
+ error: reason
+ });
+ });
+ } else {
+ action[0].call(action[1], data.data);
+ }
+ } else {
+ error('Unknown action from worker: ' + data.action);
+ }
+ };
+}
+
+MessageHandler.prototype = {
+ on: function messageHandlerOn(actionName, handler, scope) {
+ var ah = this.actionHandler;
+ if (ah[actionName]) {
+ error('There is already an actionName called "' + actionName + '"');
+ }
+ ah[actionName] = [handler, scope];
+ },
+ /**
+ * Sends a message to the comObj to invoke the action with the supplied data.
+ * @param {String} actionName Action to call.
+ * @param {JSON} data JSON data to send.
+ * @param {Array} [transfers] Optional list of transfers/ArrayBuffers
+ */
+ send: function messageHandlerSend(actionName, data, transfers) {
+ var message = {
+ action: actionName,
+ data: data
+ };
+ this.postMessage(message, transfers);
+ },
+ /**
+ * Sends a message to the comObj to invoke the action with the supplied data.
+ * Expects that other side will callback with the response.
+ * @param {String} actionName Action to call.
+ * @param {JSON} data JSON data to send.
+ * @param {Array} [transfers] Optional list of transfers/ArrayBuffers.
+ * @returns {Promise} Promise to be resolved with response data.
+ */
+ sendWithPromise:
+ function messageHandlerSendWithPromise(actionName, data, transfers) {
+ var callbackId = this.callbackIndex++;
+ var message = {
+ action: actionName,
+ data: data,
+ callbackId: callbackId
+ };
+ var capability = createPromiseCapability();
+ this.callbacksCapabilities[callbackId] = capability;
+ try {
+ this.postMessage(message, transfers);
+ } catch (e) {
+ capability.reject(e);
+ }
+ return capability.promise;
+ },
+ /**
+ * Sends raw message to the comObj.
+ * @private
+ * @param message {Object} Raw message.
+ * @param transfers List of transfers/ArrayBuffers, or undefined.
+ */
+ postMessage: function (message, transfers) {
+ if (transfers && this.postMessageTransfers) {
+ this.comObj.postMessage(message, transfers);
+ } else {
+ this.comObj.postMessage(message);
+ }
+ }
+};
+
+function loadJpegStream(id, imageUrl, objs) {
+ var img = new Image();
+ img.onload = (function loadJpegStream_onloadClosure() {
+ objs.resolve(id, img);
+ });
+ img.onerror = (function loadJpegStream_onerrorClosure() {
+ objs.resolve(id, null);
+ warn('Error during JPEG image loading');
+ });
+ img.src = imageUrl;
+}
+
+
+/**
+ * The maximum allowed image size in total pixels e.g. width * height. Images
+ * above this value will not be drawn. Use -1 for no limit.
+ * @var {number}
+ */
+PDFJS.maxImageSize = (PDFJS.maxImageSize === undefined ?
+ -1 : PDFJS.maxImageSize);
+
+/**
+ * The url of where the predefined Adobe CMaps are located. Include trailing
+ * slash.
+ * @var {string}
+ */
+PDFJS.cMapUrl = (PDFJS.cMapUrl === undefined ? null : PDFJS.cMapUrl);
+
+/**
+ * Specifies if CMaps are binary packed.
+ * @var {boolean}
+ */
+PDFJS.cMapPacked = PDFJS.cMapPacked === undefined ? false : PDFJS.cMapPacked;
+
+/**
+ * By default fonts are converted to OpenType fonts and loaded via font face
+ * rules. If disabled, the font will be rendered using a built in font renderer
+ * that constructs the glyphs with primitive path commands.
+ * @var {boolean}
+ */
+PDFJS.disableFontFace = (PDFJS.disableFontFace === undefined ?
+ false : PDFJS.disableFontFace);
+
+/**
+ * Path for image resources, mainly for annotation icons. Include trailing
+ * slash.
+ * @var {string}
+ */
+PDFJS.imageResourcesPath = (PDFJS.imageResourcesPath === undefined ?
+ '' : PDFJS.imageResourcesPath);
+
+/**
+ * Disable the web worker and run all code on the main thread. This will happen
+ * automatically if the browser doesn't support workers or sending typed arrays
+ * to workers.
+ * @var {boolean}
+ */
+PDFJS.disableWorker = (PDFJS.disableWorker === undefined ?
+ false : PDFJS.disableWorker);
+
+/**
+ * Path and filename of the worker file. Required when the worker is enabled in
+ * development mode. If unspecified in the production build, the worker will be
+ * loaded based on the location of the pdf.js file.
+ * @var {string}
+ */
+PDFJS.workerSrc = (PDFJS.workerSrc === undefined ? null : PDFJS.workerSrc);
+
+/**
+ * Disable range request loading of PDF files. When enabled and if the server
+ * supports partial content requests then the PDF will be fetched in chunks.
+ * Enabled (false) by default.
+ * @var {boolean}
+ */
+PDFJS.disableRange = (PDFJS.disableRange === undefined ?
+ false : PDFJS.disableRange);
+
+/**
+ * Disable streaming of PDF file data. By default PDF.js attempts to load PDF
+ * in chunks. This default behavior can be disabled.
+ * @var {boolean}
+ */
+PDFJS.disableStream = (PDFJS.disableStream === undefined ?
+ false : PDFJS.disableStream);
+
+/**
+ * Disable pre-fetching of PDF file data. When range requests are enabled PDF.js
+ * will automatically keep fetching more data even if it isn't needed to display
+ * the current page. This default behavior can be disabled.
+ *
+ * NOTE: It is also necessary to disable streaming, see above,
+ * in order for disabling of pre-fetching to work correctly.
+ * @var {boolean}
+ */
+PDFJS.disableAutoFetch = (PDFJS.disableAutoFetch === undefined ?
+ false : PDFJS.disableAutoFetch);
+
+/**
+ * Enables special hooks for debugging PDF.js.
+ * @var {boolean}
+ */
+PDFJS.pdfBug = (PDFJS.pdfBug === undefined ? false : PDFJS.pdfBug);
+
+/**
+ * Enables transfer usage in postMessage for ArrayBuffers.
+ * @var {boolean}
+ */
+PDFJS.postMessageTransfers = (PDFJS.postMessageTransfers === undefined ?
+ true : PDFJS.postMessageTransfers);
+
+/**
+ * Disables URL.createObjectURL usage.
+ * @var {boolean}
+ */
+PDFJS.disableCreateObjectURL = (PDFJS.disableCreateObjectURL === undefined ?
+ false : PDFJS.disableCreateObjectURL);
+
+/**
+ * Disables WebGL usage.
+ * @var {boolean}
+ */
+PDFJS.disableWebGL = (PDFJS.disableWebGL === undefined ?
+ true : PDFJS.disableWebGL);
+
+/**
+ * Disables fullscreen support, and by extension Presentation Mode,
+ * in browsers which support the fullscreen API.
+ * @var {boolean}
+ */
+PDFJS.disableFullscreen = (PDFJS.disableFullscreen === undefined ?
+ false : PDFJS.disableFullscreen);
+
+/**
+ * Enables CSS only zooming.
+ * @var {boolean}
+ */
+PDFJS.useOnlyCssZoom = (PDFJS.useOnlyCssZoom === undefined ?
+ false : PDFJS.useOnlyCssZoom);
+
+/**
+ * Controls the logging level.
+ * The constants from PDFJS.VERBOSITY_LEVELS should be used:
+ * - errors
+ * - warnings [default]
+ * - infos
+ * @var {number}
+ */
+PDFJS.verbosity = (PDFJS.verbosity === undefined ?
+ PDFJS.VERBOSITY_LEVELS.warnings : PDFJS.verbosity);
+
+/**
+ * The maximum supported canvas size in total pixels e.g. width * height.
+ * The default value is 4096 * 4096. Use -1 for no limit.
+ * @var {number}
+ */
+PDFJS.maxCanvasPixels = (PDFJS.maxCanvasPixels === undefined ?
+ 16777216 : PDFJS.maxCanvasPixels);
+
+/**
+ * Opens external links in a new window if enabled. The default behavior opens
+ * external links in the PDF.js window.
+ * @var {boolean}
+ */
+PDFJS.openExternalLinksInNewWindow = (
+ PDFJS.openExternalLinksInNewWindow === undefined ?
+ false : PDFJS.openExternalLinksInNewWindow);
+
+/**
+ * Document initialization / loading parameters object.
+ *
+ * @typedef {Object} DocumentInitParameters
+ * @property {string} url - The URL of the PDF.
+ * @property {TypedArray|Array|string} data - Binary PDF data. Use typed arrays
+ * (Uint8Array) to improve the memory usage. If PDF data is BASE64-encoded,
+ * use atob() to convert it to a binary string first.
+ * @property {Object} httpHeaders - Basic authentication headers.
+ * @property {boolean} withCredentials - Indicates whether or not cross-site
+ * Access-Control requests should be made using credentials such as cookies
+ * or authorization headers. The default is false.
+ * @property {string} password - For decrypting password-protected PDFs.
+ * @property {TypedArray} initialData - A typed array with the first portion or
+ * all of the pdf data. Used by the extension since some data is already
+ * loaded before the switch to range requests.
+ * @property {number} length - The PDF file length. It's used for progress
+ * reports and range requests operations.
+ * @property {PDFDataRangeTransport} range
+ */
+
+/**
+ * @typedef {Object} PDFDocumentStats
+ * @property {Array} streamTypes - Used stream types in the document (an item
+ * is set to true if specific stream ID was used in the document).
+ * @property {Array} fontTypes - Used font type in the document (an item is set
+ * to true if specific font ID was used in the document).
+ */
+
+/**
+ * This is the main entry point for loading a PDF and interacting with it.
+ * NOTE: If a URL is used to fetch the PDF data a standard XMLHttpRequest(XHR)
+ * is used, which means it must follow the same origin rules that any XHR does
+ * e.g. No cross domain requests without CORS.
+ *
+ * @param {string|TypedArray|DocumentInitParameters|PDFDataRangeTransport} src
+ * Can be a url to where a PDF is located, a typed array (Uint8Array)
+ * already populated with data or parameter object.
+ *
+ * @param {PDFDataRangeTransport} pdfDataRangeTransport (deprecated) It is used
+ * if you want to manually serve range requests for data in the PDF.
+ *
+ * @param {function} passwordCallback (deprecated) It is used to request a
+ * password if wrong or no password was provided. The callback receives two
+ * parameters: function that needs to be called with new password and reason
+ * (see {PasswordResponses}).
+ *
+ * @param {function} progressCallback (deprecated) It is used to be able to
+ * monitor the loading progress of the PDF file (necessary to implement e.g.
+ * a loading bar). The callback receives an {Object} with the properties:
+ * {number} loaded and {number} total.
+ *
+ * @return {PDFDocumentLoadingTask}
+ */
+PDFJS.getDocument = function getDocument(src,
+ pdfDataRangeTransport,
+ passwordCallback,
+ progressCallback) {
+ var task = new PDFDocumentLoadingTask();
+
+ // Support of the obsolete arguments (for compatibility with API v1.0)
+ if (pdfDataRangeTransport) {
+ if (!(pdfDataRangeTransport instanceof PDFDataRangeTransport)) {
+ // Not a PDFDataRangeTransport instance, trying to add missing properties.
+ pdfDataRangeTransport = Object.create(pdfDataRangeTransport);
+ pdfDataRangeTransport.length = src.length;
+ pdfDataRangeTransport.initialData = src.initialData;
+ }
+ src = Object.create(src);
+ src.range = pdfDataRangeTransport;
+ }
+ task.onPassword = passwordCallback || null;
+ task.onProgress = progressCallback || null;
+
+ var workerInitializedCapability, transport;
+ var source;
+ if (typeof src === 'string') {
+ source = { url: src };
+ } else if (isArrayBuffer(src)) {
+ source = { data: src };
+ } else if (src instanceof PDFDataRangeTransport) {
+ source = { range: src };
+ } else {
+ if (typeof src !== 'object') {
+ error('Invalid parameter in getDocument, need either Uint8Array, ' +
+ 'string or a parameter object');
+ }
+ if (!src.url && !src.data && !src.range) {
+ error('Invalid parameter object: need either .data, .range or .url');
+ }
+
+ source = src;
+ }
+
+ var params = {};
+ for (var key in source) {
+ if (key === 'url' && typeof window !== 'undefined') {
+ // The full path is required in the 'url' field.
+ params[key] = combineUrl(window.location.href, source[key]);
+ continue;
+ } else if (key === 'range') {
+ continue;
+ } else if (key === 'data' && !(source[key] instanceof Uint8Array)) {
+ // Converting string or array-like data to Uint8Array.
+ var pdfBytes = source[key];
+ if (typeof pdfBytes === 'string') {
+ params[key] = stringToBytes(pdfBytes);
+ } else if (typeof pdfBytes === 'object' && pdfBytes !== null &&
+ !isNaN(pdfBytes.length)) {
+ params[key] = new Uint8Array(pdfBytes);
+ } else {
+ error('Invalid PDF binary data: either typed array, string or ' +
+ 'array-like object is expected in the data property.');
+ }
+ continue;
+ }
+ params[key] = source[key];
+ }
+
+ workerInitializedCapability = createPromiseCapability();
+ transport = new WorkerTransport(workerInitializedCapability, source.range);
+ workerInitializedCapability.promise.then(function transportInitialized() {
+ transport.fetchDocument(task, params);
+ });
+
+ return task;
+};
+
+/**
+ * PDF document loading operation.
+ * @class
+ */
+var PDFDocumentLoadingTask = (function PDFDocumentLoadingTaskClosure() {
+ /** @constructs PDFDocumentLoadingTask */
+ function PDFDocumentLoadingTask() {
+ this._capability = createPromiseCapability();
+
+ /**
+ * Callback to request a password if wrong or no password was provided.
+ * The callback receives two parameters: function that needs to be called
+ * with new password and reason (see {PasswordResponses}).
+ */
+ this.onPassword = null;
+
+ /**
+ * Callback to be able to monitor the loading progress of the PDF file
+ * (necessary to implement e.g. a loading bar). The callback receives
+ * an {Object} with the properties: {number} loaded and {number} total.
+ */
+ this.onProgress = null;
+ }
+
+ PDFDocumentLoadingTask.prototype =
+ /** @lends PDFDocumentLoadingTask.prototype */ {
+ /**
+ * @return {Promise}
+ */
+ get promise() {
+ return this._capability.promise;
+ },
+
+ // TODO add cancel or abort method
+
+ /**
+ * Registers callbacks to indicate the document loading completion.
+ *
+ * @param {function} onFulfilled The callback for the loading completion.
+ * @param {function} onRejected The callback for the loading failure.
+ * @return {Promise} A promise that is resolved after the onFulfilled or
+ * onRejected callback.
+ */
+ then: function PDFDocumentLoadingTask_then(onFulfilled, onRejected) {
+ return this.promise.then.apply(this.promise, arguments);
+ }
+ };
+
+ return PDFDocumentLoadingTask;
+})();
+
+/**
+ * Abstract class to support range requests file loading.
+ * @class
+ */
+var PDFDataRangeTransport = (function pdfDataRangeTransportClosure() {
+ /**
+ * @constructs PDFDataRangeTransport
+ * @param {number} length
+ * @param {Uint8Array} initialData
+ */
+ function PDFDataRangeTransport(length, initialData) {
+ this.length = length;
+ this.initialData = initialData;
+
+ this._rangeListeners = [];
+ this._progressListeners = [];
+ this._progressiveReadListeners = [];
+ this._readyCapability = createPromiseCapability();
+ }
+ PDFDataRangeTransport.prototype =
+ /** @lends PDFDataRangeTransport.prototype */ {
+ addRangeListener:
+ function PDFDataRangeTransport_addRangeListener(listener) {
+ this._rangeListeners.push(listener);
+ },
+
+ addProgressListener:
+ function PDFDataRangeTransport_addProgressListener(listener) {
+ this._progressListeners.push(listener);
+ },
+
+ addProgressiveReadListener:
+ function PDFDataRangeTransport_addProgressiveReadListener(listener) {
+ this._progressiveReadListeners.push(listener);
+ },
+
+ onDataRange: function PDFDataRangeTransport_onDataRange(begin, chunk) {
+ var listeners = this._rangeListeners;
+ for (var i = 0, n = listeners.length; i < n; ++i) {
+ listeners[i](begin, chunk);
+ }
+ },
+
+ onDataProgress: function PDFDataRangeTransport_onDataProgress(loaded) {
+ this._readyCapability.promise.then(function () {
+ var listeners = this._progressListeners;
+ for (var i = 0, n = listeners.length; i < n; ++i) {
+ listeners[i](loaded);
+ }
+ }.bind(this));
+ },
+
+ onDataProgressiveRead:
+ function PDFDataRangeTransport_onDataProgress(chunk) {
+ this._readyCapability.promise.then(function () {
+ var listeners = this._progressiveReadListeners;
+ for (var i = 0, n = listeners.length; i < n; ++i) {
+ listeners[i](chunk);
+ }
+ }.bind(this));
+ },
+
+ transportReady: function PDFDataRangeTransport_transportReady() {
+ this._readyCapability.resolve();
+ },
+
+ requestDataRange:
+ function PDFDataRangeTransport_requestDataRange(begin, end) {
+ throw new Error('Abstract method PDFDataRangeTransport.requestDataRange');
+ }
+ };
+ return PDFDataRangeTransport;
+})();
+
+PDFJS.PDFDataRangeTransport = PDFDataRangeTransport;
+
+/**
+ * Proxy to a PDFDocument in the worker thread. Also, contains commonly used
+ * properties that can be read synchronously.
+ * @class
+ */
+var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
+ function PDFDocumentProxy(pdfInfo, transport) {
+ this.pdfInfo = pdfInfo;
+ this.transport = transport;
+ }
+ PDFDocumentProxy.prototype = /** @lends PDFDocumentProxy.prototype */ {
+ /**
+ * @return {number} Total number of pages the PDF contains.
+ */
+ get numPages() {
+ return this.pdfInfo.numPages;
+ },
+ /**
+ * @return {string} A unique ID to identify a PDF. Not guaranteed to be
+ * unique.
+ */
+ get fingerprint() {
+ return this.pdfInfo.fingerprint;
+ },
+ /**
+ * @param {number} pageNumber The page number to get. The first page is 1.
+ * @return {Promise} A promise that is resolved with a {@link PDFPageProxy}
+ * object.
+ */
+ getPage: function PDFDocumentProxy_getPage(pageNumber) {
+ return this.transport.getPage(pageNumber);
+ },
+ /**
+ * @param {{num: number, gen: number}} ref The page reference. Must have
+ * the 'num' and 'gen' properties.
+ * @return {Promise} A promise that is resolved with the page index that is
+ * associated with the reference.
+ */
+ getPageIndex: function PDFDocumentProxy_getPageIndex(ref) {
+ return this.transport.getPageIndex(ref);
+ },
+ /**
+ * @return {Promise} A promise that is resolved with a lookup table for
+ * mapping named destinations to reference numbers.
+ *
+ * This can be slow for large documents: use getDestination instead
+ */
+ getDestinations: function PDFDocumentProxy_getDestinations() {
+ return this.transport.getDestinations();
+ },
+ /**
+ * @param {string} id The named destination to get.
+ * @return {Promise} A promise that is resolved with all information
+ * of the given named destination.
+ */
+ getDestination: function PDFDocumentProxy_getDestination(id) {
+ return this.transport.getDestination(id);
+ },
+ /**
+ * @return {Promise} A promise that is resolved with a lookup table for
+ * mapping named attachments to their content.
+ */
+ getAttachments: function PDFDocumentProxy_getAttachments() {
+ return this.transport.getAttachments();
+ },
+ /**
+ * @return {Promise} A promise that is resolved with an array of all the
+ * JavaScript strings in the name tree.
+ */
+ getJavaScript: function PDFDocumentProxy_getJavaScript() {
+ return this.transport.getJavaScript();
+ },
+ /**
+ * @return {Promise} A promise that is resolved with an {Array} that is a
+ * tree outline (if it has one) of the PDF. The tree is in the format of:
+ * [
+ * {
+ * title: string,
+ * bold: boolean,
+ * italic: boolean,
+ * color: rgb array,
+ * dest: dest obj,
+ * items: array of more items like this
+ * },
+ * ...
+ * ].
+ */
+ getOutline: function PDFDocumentProxy_getOutline() {
+ return this.transport.getOutline();
+ },
+ /**
+ * @return {Promise} A promise that is resolved with an {Object} that has
+ * info and metadata properties. Info is an {Object} filled with anything
+ * available in the information dictionary and similarly metadata is a
+ * {Metadata} object with information from the metadata section of the PDF.
+ */
+ getMetadata: function PDFDocumentProxy_getMetadata() {
+ return this.transport.getMetadata();
+ },
+ /**
+ * @return {Promise} A promise that is resolved with a TypedArray that has
+ * the raw data from the PDF.
+ */
+ getData: function PDFDocumentProxy_getData() {
+ return this.transport.getData();
+ },
+ /**
+ * @return {Promise} A promise that is resolved when the document's data
+ * is loaded. It is resolved with an {Object} that contains the length
+ * property that indicates size of the PDF data in bytes.
+ */
+ getDownloadInfo: function PDFDocumentProxy_getDownloadInfo() {
+ return this.transport.downloadInfoCapability.promise;
+ },
+ /**
+ * @return {Promise} A promise this is resolved with current stats about
+ * document structures (see {@link PDFDocumentStats}).
+ */
+ getStats: function PDFDocumentProxy_getStats() {
+ return this.transport.getStats();
+ },
+ /**
+ * Cleans up resources allocated by the document, e.g. created @font-face.
+ */
+ cleanup: function PDFDocumentProxy_cleanup() {
+ this.transport.startCleanup();
+ },
+ /**
+ * Destroys current document instance and terminates worker.
+ */
+ destroy: function PDFDocumentProxy_destroy() {
+ this.transport.destroy();
+ }
+ };
+ return PDFDocumentProxy;
+})();
+
+/**
+ * Page text content.
+ *
+ * @typedef {Object} TextContent
+ * @property {array} items - array of {@link TextItem}
+ * @property {Object} styles - {@link TextStyles} objects, indexed by font
+ * name.
+ */
+
+/**
+ * Page text content part.
+ *
+ * @typedef {Object} TextItem
+ * @property {string} str - text content.
+ * @property {string} dir - text direction: 'ttb', 'ltr' or 'rtl'.
+ * @property {array} transform - transformation matrix.
+ * @property {number} width - width in device space.
+ * @property {number} height - height in device space.
+ * @property {string} fontName - font name used by pdf.js for converted font.
+ */
+
+/**
+ * Text style.
+ *
+ * @typedef {Object} TextStyle
+ * @property {number} ascent - font ascent.
+ * @property {number} descent - font descent.
+ * @property {boolean} vertical - text is in vertical mode.
+ * @property {string} fontFamily - possible font family
+ */
+
+/**
+ * Page render parameters.
+ *
+ * @typedef {Object} RenderParameters
+ * @property {Object} canvasContext - A 2D context of a DOM Canvas object.
+ * @property {PDFJS.PageViewport} viewport - Rendering viewport obtained by
+ * calling of PDFPage.getViewport method.
+ * @property {string} intent - Rendering intent, can be 'display' or 'print'
+ * (default value is 'display').
+ * @property {Object} imageLayer - (optional) An object that has beginLayout,
+ * endLayout and appendImage functions.
+ * @property {function} continueCallback - (deprecated) A function that will be
+ * called each time the rendering is paused. To continue
+ * rendering call the function that is the first argument
+ * to the callback.
+ */
+
+/**
+ * PDF page operator list.
+ *
+ * @typedef {Object} PDFOperatorList
+ * @property {Array} fnArray - Array containing the operator functions.
+ * @property {Array} argsArray - Array containing the arguments of the
+ * functions.
+ */
+
+/**
+ * Proxy to a PDFPage in the worker thread.
+ * @class
+ */
+var PDFPageProxy = (function PDFPageProxyClosure() {
+ function PDFPageProxy(pageIndex, pageInfo, transport) {
+ this.pageIndex = pageIndex;
+ this.pageInfo = pageInfo;
+ this.transport = transport;
+ this.stats = new StatTimer();
+ this.stats.enabled = !!globalScope.PDFJS.enableStats;
+ this.commonObjs = transport.commonObjs;
+ this.objs = new PDFObjects();
+ this.cleanupAfterRender = false;
+ this.pendingDestroy = false;
+ this.intentStates = {};
+ }
+ PDFPageProxy.prototype = /** @lends PDFPageProxy.prototype */ {
+ /**
+ * @return {number} Page number of the page. First page is 1.
+ */
+ get pageNumber() {
+ return this.pageIndex + 1;
+ },
+ /**
+ * @return {number} The number of degrees the page is rotated clockwise.
+ */
+ get rotate() {
+ return this.pageInfo.rotate;
+ },
+ /**
+ * @return {Object} The reference that points to this page. It has 'num' and
+ * 'gen' properties.
+ */
+ get ref() {
+ return this.pageInfo.ref;
+ },
+ /**
+ * @return {Array} An array of the visible portion of the PDF page in the
+ * user space units - [x1, y1, x2, y2].
+ */
+ get view() {
+ return this.pageInfo.view;
+ },
+ /**
+ * @param {number} scale The desired scale of the viewport.
+ * @param {number} rotate Degrees to rotate the viewport. If omitted this
+ * defaults to the page rotation.
+ * @return {PDFJS.PageViewport} Contains 'width' and 'height' properties
+ * along with transforms required for rendering.
+ */
+ getViewport: function PDFPageProxy_getViewport(scale, rotate) {
+ if (arguments.length < 2) {
+ rotate = this.rotate;
+ }
+ return new PDFJS.PageViewport(this.view, scale, rotate, 0, 0);
+ },
+ /**
+ * @return {Promise} A promise that is resolved with an {Array} of the
+ * annotation objects.
+ */
+ getAnnotations: function PDFPageProxy_getAnnotations() {
+ if (this.annotationsPromise) {
+ return this.annotationsPromise;
+ }
+
+ var promise = this.transport.getAnnotations(this.pageIndex);
+ this.annotationsPromise = promise;
+ return promise;
+ },
+ /**
+ * Begins the process of rendering a page to the desired context.
+ * @param {RenderParameters} params Page render parameters.
+ * @return {RenderTask} An object that contains the promise, which
+ * is resolved when the page finishes rendering.
+ */
+ render: function PDFPageProxy_render(params) {
+ var stats = this.stats;
+ stats.time('Overall');
+
+ // If there was a pending destroy cancel it so no cleanup happens during
+ // this call to render.
+ this.pendingDestroy = false;
+
+ var renderingIntent = (params.intent === 'print' ? 'print' : 'display');
+
+ if (!this.intentStates[renderingIntent]) {
+ this.intentStates[renderingIntent] = {};
+ }
+ var intentState = this.intentStates[renderingIntent];
+
+ // If there's no displayReadyCapability yet, then the operatorList
+ // was never requested before. Make the request and create the promise.
+ if (!intentState.displayReadyCapability) {
+ intentState.receivingOperatorList = true;
+ intentState.displayReadyCapability = createPromiseCapability();
+ intentState.operatorList = {
+ fnArray: [],
+ argsArray: [],
+ lastChunk: false
+ };
+
+ this.stats.time('Page Request');
+ this.transport.messageHandler.send('RenderPageRequest', {
+ pageIndex: this.pageNumber - 1,
+ intent: renderingIntent
+ });
+ }
+
+ var internalRenderTask = new InternalRenderTask(complete, params,
+ this.objs,
+ this.commonObjs,
+ intentState.operatorList,
+ this.pageNumber);
+ if (!intentState.renderTasks) {
+ intentState.renderTasks = [];
+ }
+ intentState.renderTasks.push(internalRenderTask);
+ var renderTask = internalRenderTask.task;
+
+ // Obsolete parameter support
+ if (params.continueCallback) {
+ renderTask.onContinue = params.continueCallback;
+ }
+
+ var self = this;
+ intentState.displayReadyCapability.promise.then(
+ function pageDisplayReadyPromise(transparency) {
+ if (self.pendingDestroy) {
+ complete();
+ return;
+ }
+ stats.time('Rendering');
+ internalRenderTask.initalizeGraphics(transparency);
+ internalRenderTask.operatorListChanged();
+ },
+ function pageDisplayReadPromiseError(reason) {
+ complete(reason);
+ }
+ );
+
+ function complete(error) {
+ var i = intentState.renderTasks.indexOf(internalRenderTask);
+ if (i >= 0) {
+ intentState.renderTasks.splice(i, 1);
+ }
+
+ if (self.cleanupAfterRender) {
+ self.pendingDestroy = true;
+ }
+ self._tryDestroy();
+
+ if (error) {
+ internalRenderTask.capability.reject(error);
+ } else {
+ internalRenderTask.capability.resolve();
+ }
+ stats.timeEnd('Rendering');
+ stats.timeEnd('Overall');
+ }
+
+ return renderTask;
+ },
+
+ /**
+ * @return {Promise} A promise resolved with an {@link PDFOperatorList}
+ * object that represents page's operator list.
+ */
+ getOperatorList: function PDFPageProxy_getOperatorList() {
+ function operatorListChanged() {
+ if (intentState.operatorList.lastChunk) {
+ intentState.opListReadCapability.resolve(intentState.operatorList);
+ }
+ }
+
+ var renderingIntent = 'oplist';
+ if (!this.intentStates[renderingIntent]) {
+ this.intentStates[renderingIntent] = {};
+ }
+ var intentState = this.intentStates[renderingIntent];
+
+ if (!intentState.opListReadCapability) {
+ var opListTask = {};
+ opListTask.operatorListChanged = operatorListChanged;
+ intentState.receivingOperatorList = true;
+ intentState.opListReadCapability = createPromiseCapability();
+ intentState.renderTasks = [];
+ intentState.renderTasks.push(opListTask);
+ intentState.operatorList = {
+ fnArray: [],
+ argsArray: [],
+ lastChunk: false
+ };
+
+ this.transport.messageHandler.send('RenderPageRequest', {
+ pageIndex: this.pageIndex,
+ intent: renderingIntent
+ });
+ }
+ return intentState.opListReadCapability.promise;
+ },
+
+ /**
+ * @return {Promise} That is resolved a {@link TextContent}
+ * object that represent the page text content.
+ */
+ getTextContent: function PDFPageProxy_getTextContent() {
+ return this.transport.messageHandler.sendWithPromise('GetTextContent', {
+ pageIndex: this.pageNumber - 1
+ });
+ },
+ /**
+ * Destroys resources allocated by the page.
+ */
+ destroy: function PDFPageProxy_destroy() {
+ this.pendingDestroy = true;
+ this._tryDestroy();
+ },
+ /**
+ * For internal use only. Attempts to clean up if rendering is in a state
+ * where that's possible.
+ * @ignore
+ */
+ _tryDestroy: function PDFPageProxy__destroy() {
+ if (!this.pendingDestroy ||
+ Object.keys(this.intentStates).some(function(intent) {
+ var intentState = this.intentStates[intent];
+ return (intentState.renderTasks.length !== 0 ||
+ intentState.receivingOperatorList);
+ }, this)) {
+ return;
+ }
+
+ Object.keys(this.intentStates).forEach(function(intent) {
+ delete this.intentStates[intent];
+ }, this);
+ this.objs.clear();
+ this.annotationsPromise = null;
+ this.pendingDestroy = false;
+ },
+ /**
+ * For internal use only.
+ * @ignore
+ */
+ _startRenderPage: function PDFPageProxy_startRenderPage(transparency,
+ intent) {
+ var intentState = this.intentStates[intent];
+ // TODO Refactor RenderPageRequest to separate rendering
+ // and operator list logic
+ if (intentState.displayReadyCapability) {
+ intentState.displayReadyCapability.resolve(transparency);
+ }
+ },
+ /**
+ * For internal use only.
+ * @ignore
+ */
+ _renderPageChunk: function PDFPageProxy_renderPageChunk(operatorListChunk,
+ intent) {
+ var intentState = this.intentStates[intent];
+ var i, ii;
+ // Add the new chunk to the current operator list.
+ for (i = 0, ii = operatorListChunk.length; i < ii; i++) {
+ intentState.operatorList.fnArray.push(operatorListChunk.fnArray[i]);
+ intentState.operatorList.argsArray.push(
+ operatorListChunk.argsArray[i]);
+ }
+ intentState.operatorList.lastChunk = operatorListChunk.lastChunk;
+
+ // Notify all the rendering tasks there are more operators to be consumed.
+ for (i = 0; i < intentState.renderTasks.length; i++) {
+ intentState.renderTasks[i].operatorListChanged();
+ }
+
+ if (operatorListChunk.lastChunk) {
+ intentState.receivingOperatorList = false;
+ this._tryDestroy();
+ }
+ }
+ };
+ return PDFPageProxy;
+})();
+
+/**
+ * For internal use only.
+ * @ignore
+ */
+var WorkerTransport = (function WorkerTransportClosure() {
+ function WorkerTransport(workerInitializedCapability, pdfDataRangeTransport) {
+ this.pdfDataRangeTransport = pdfDataRangeTransport;
+ this.workerInitializedCapability = workerInitializedCapability;
+ this.commonObjs = new PDFObjects();
+
+ this.loadingTask = null;
+
+ this.pageCache = [];
+ this.pagePromises = [];
+ this.downloadInfoCapability = createPromiseCapability();
+
+ // If worker support isn't disabled explicit and the browser has worker
+ // support, create a new web worker and test if it/the browser fullfills
+ // all requirements to run parts of pdf.js in a web worker.
+ // Right now, the requirement is, that an Uint8Array is still an Uint8Array
+ // as it arrives on the worker. Chrome added this with version 15.
+ if (!globalScope.PDFJS.disableWorker && typeof Worker !== 'undefined') {
+ var workerSrc = PDFJS.workerSrc;
+ if (!workerSrc) {
+ error('No PDFJS.workerSrc specified');
+ }
+
+ try {
+ // Some versions of FF can't create a worker on localhost, see:
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=683280
+ var worker = new Worker(workerSrc);
+ var messageHandler = new MessageHandler('main', worker);
+ this.messageHandler = messageHandler;
+
+ messageHandler.on('test', function transportTest(data) {
+ var supportTypedArray = data && data.supportTypedArray;
+ if (supportTypedArray) {
+ this.worker = worker;
+ if (!data.supportTransfers) {
+ PDFJS.postMessageTransfers = false;
+ }
+ this.setupMessageHandler(messageHandler);
+ workerInitializedCapability.resolve();
+ } else {
+ this.setupFakeWorker();
+ }
+ }.bind(this));
+
+ var testObj = new Uint8Array([PDFJS.postMessageTransfers ? 255 : 0]);
+ // Some versions of Opera throw a DATA_CLONE_ERR on serializing the
+ // typed array. Also, checking if we can use transfers.
+ try {
+ messageHandler.send('test', testObj, [testObj.buffer]);
+ } catch (ex) {
+ info('Cannot use postMessage transfers');
+ testObj[0] = 0;
+ messageHandler.send('test', testObj);
+ }
+ return;
+ } catch (e) {
+ info('The worker has been disabled.');
+ }
+ }
+ // Either workers are disabled, not supported or have thrown an exception.
+ // Thus, we fallback to a faked worker.
+ this.setupFakeWorker();
+ }
+ WorkerTransport.prototype = {
+ destroy: function WorkerTransport_destroy() {
+ this.pageCache = [];
+ this.pagePromises = [];
+ var self = this;
+ this.messageHandler.sendWithPromise('Terminate', null).then(function () {
+ FontLoader.clear();
+ if (self.worker) {
+ self.worker.terminate();
+ }
+ });
+ },
+
+ setupFakeWorker: function WorkerTransport_setupFakeWorker() {
+ globalScope.PDFJS.disableWorker = true;
+
+ if (!PDFJS.fakeWorkerFilesLoadedCapability) {
+ PDFJS.fakeWorkerFilesLoadedCapability = createPromiseCapability();
+ // In the developer build load worker_loader which in turn loads all the
+ // other files and resolves the promise. In production only the
+ // pdf.worker.js file is needed.
+ Util.loadScript(PDFJS.workerSrc, function() {
+ PDFJS.fakeWorkerFilesLoadedCapability.resolve();
+ });
+ }
+ PDFJS.fakeWorkerFilesLoadedCapability.promise.then(function () {
+ warn('Setting up fake worker.');
+ // If we don't use a worker, just post/sendMessage to the main thread.
+ var fakeWorker = {
+ postMessage: function WorkerTransport_postMessage(obj) {
+ fakeWorker.onmessage({data: obj});
+ },
+ terminate: function WorkerTransport_terminate() {}
+ };
+
+ var messageHandler = new MessageHandler('main', fakeWorker);
+ this.setupMessageHandler(messageHandler);
+
+ // If the main thread is our worker, setup the handling for the messages
+ // the main thread sends to it self.
+ PDFJS.WorkerMessageHandler.setup(messageHandler);
+
+ this.workerInitializedCapability.resolve();
+ }.bind(this));
+ },
+
+ setupMessageHandler:
+ function WorkerTransport_setupMessageHandler(messageHandler) {
+ this.messageHandler = messageHandler;
+
+ function updatePassword(password) {
+ messageHandler.send('UpdatePassword', password);
+ }
+
+ var pdfDataRangeTransport = this.pdfDataRangeTransport;
+ if (pdfDataRangeTransport) {
+ pdfDataRangeTransport.addRangeListener(function(begin, chunk) {
+ messageHandler.send('OnDataRange', {
+ begin: begin,
+ chunk: chunk
+ });
+ });
+
+ pdfDataRangeTransport.addProgressListener(function(loaded) {
+ messageHandler.send('OnDataProgress', {
+ loaded: loaded
+ });
+ });
+
+ pdfDataRangeTransport.addProgressiveReadListener(function(chunk) {
+ messageHandler.send('OnDataRange', {
+ chunk: chunk
+ });
+ });
+
+ messageHandler.on('RequestDataRange',
+ function transportDataRange(data) {
+ pdfDataRangeTransport.requestDataRange(data.begin, data.end);
+ }, this);
+ }
+
+ messageHandler.on('GetDoc', function transportDoc(data) {
+ var pdfInfo = data.pdfInfo;
+ this.numPages = data.pdfInfo.numPages;
+ var pdfDocument = new PDFDocumentProxy(pdfInfo, this);
+ this.pdfDocument = pdfDocument;
+ this.loadingTask._capability.resolve(pdfDocument);
+ }, this);
+
+ messageHandler.on('NeedPassword',
+ function transportNeedPassword(exception) {
+ var loadingTask = this.loadingTask;
+ if (loadingTask.onPassword) {
+ return loadingTask.onPassword(updatePassword,
+ PasswordResponses.NEED_PASSWORD);
+ }
+ loadingTask._capability.reject(
+ new PasswordException(exception.message, exception.code));
+ }, this);
+
+ messageHandler.on('IncorrectPassword',
+ function transportIncorrectPassword(exception) {
+ var loadingTask = this.loadingTask;
+ if (loadingTask.onPassword) {
+ return loadingTask.onPassword(updatePassword,
+ PasswordResponses.INCORRECT_PASSWORD);
+ }
+ loadingTask._capability.reject(
+ new PasswordException(exception.message, exception.code));
+ }, this);
+
+ messageHandler.on('InvalidPDF', function transportInvalidPDF(exception) {
+ this.loadingTask._capability.reject(
+ new InvalidPDFException(exception.message));
+ }, this);
+
+ messageHandler.on('MissingPDF', function transportMissingPDF(exception) {
+ this.loadingTask._capability.reject(
+ new MissingPDFException(exception.message));
+ }, this);
+
+ messageHandler.on('UnexpectedResponse',
+ function transportUnexpectedResponse(exception) {
+ this.loadingTask._capability.reject(
+ new UnexpectedResponseException(exception.message, exception.status));
+ }, this);
+
+ messageHandler.on('UnknownError',
+ function transportUnknownError(exception) {
+ this.loadingTask._capability.reject(
+ new UnknownErrorException(exception.message, exception.details));
+ }, this);
+
+ messageHandler.on('DataLoaded', function transportPage(data) {
+ this.downloadInfoCapability.resolve(data);
+ }, this);
+
+ messageHandler.on('PDFManagerReady', function transportPage(data) {
+ if (this.pdfDataRangeTransport) {
+ this.pdfDataRangeTransport.transportReady();
+ }
+ }, this);
+
+ messageHandler.on('StartRenderPage', function transportRender(data) {
+ var page = this.pageCache[data.pageIndex];
+
+ page.stats.timeEnd('Page Request');
+ page._startRenderPage(data.transparency, data.intent);
+ }, this);
+
+ messageHandler.on('RenderPageChunk', function transportRender(data) {
+ var page = this.pageCache[data.pageIndex];
+
+ page._renderPageChunk(data.operatorList, data.intent);
+ }, this);
+
+ messageHandler.on('commonobj', function transportObj(data) {
+ var id = data[0];
+ var type = data[1];
+ if (this.commonObjs.hasData(id)) {
+ return;
+ }
+
+ switch (type) {
+ case 'Font':
+ var exportedData = data[2];
+
+ var font;
+ if ('error' in exportedData) {
+ var error = exportedData.error;
+ warn('Error during font loading: ' + error);
+ this.commonObjs.resolve(id, error);
+ break;
+ } else {
+ font = new FontFaceObject(exportedData);
+ }
+
+ FontLoader.bind(
+ [font],
+ function fontReady(fontObjs) {
+ this.commonObjs.resolve(id, font);
+ }.bind(this)
+ );
+ break;
+ case 'FontPath':
+ this.commonObjs.resolve(id, data[2]);
+ break;
+ default:
+ error('Got unknown common object type ' + type);
+ }
+ }, this);
+
+ messageHandler.on('obj', function transportObj(data) {
+ var id = data[0];
+ var pageIndex = data[1];
+ var type = data[2];
+ var pageProxy = this.pageCache[pageIndex];
+ var imageData;
+ if (pageProxy.objs.hasData(id)) {
+ return;
+ }
+
+ switch (type) {
+ case 'JpegStream':
+ imageData = data[3];
+ loadJpegStream(id, imageData, pageProxy.objs);
+ break;
+ case 'Image':
+ imageData = data[3];
+ pageProxy.objs.resolve(id, imageData);
+
+ // heuristics that will allow not to store large data
+ var MAX_IMAGE_SIZE_TO_STORE = 8000000;
+ if (imageData && 'data' in imageData &&
+ imageData.data.length > MAX_IMAGE_SIZE_TO_STORE) {
+ pageProxy.cleanupAfterRender = true;
+ }
+ break;
+ default:
+ error('Got unknown object type ' + type);
+ }
+ }, this);
+
+ messageHandler.on('DocProgress', function transportDocProgress(data) {
+ var loadingTask = this.loadingTask;
+ if (loadingTask.onProgress) {
+ loadingTask.onProgress({
+ loaded: data.loaded,
+ total: data.total
+ });
+ }
+ }, this);
+
+ messageHandler.on('PageError', function transportError(data) {
+ var page = this.pageCache[data.pageNum - 1];
+ var intentState = page.intentStates[data.intent];
+ if (intentState.displayReadyCapability) {
+ intentState.displayReadyCapability.reject(data.error);
+ } else {
+ error(data.error);
+ }
+ }, this);
+
+ messageHandler.on('JpegDecode', function(data) {
+ var imageUrl = data[0];
+ var components = data[1];
+ if (components !== 3 && components !== 1) {
+ return Promise.reject(
+ new Error('Only 3 components or 1 component can be returned'));
+ }
+
+ return new Promise(function (resolve, reject) {
+ var img = new Image();
+ img.onload = function () {
+ var width = img.width;
+ var height = img.height;
+ var size = width * height;
+ var rgbaLength = size * 4;
+ var buf = new Uint8Array(size * components);
+ var tmpCanvas = createScratchCanvas(width, height);
+ var tmpCtx = tmpCanvas.getContext('2d');
+ tmpCtx.drawImage(img, 0, 0);
+ var data = tmpCtx.getImageData(0, 0, width, height).data;
+ var i, j;
+
+ if (components === 3) {
+ for (i = 0, j = 0; i < rgbaLength; i += 4, j += 3) {
+ buf[j] = data[i];
+ buf[j + 1] = data[i + 1];
+ buf[j + 2] = data[i + 2];
+ }
+ } else if (components === 1) {
+ for (i = 0, j = 0; i < rgbaLength; i += 4, j++) {
+ buf[j] = data[i];
+ }
+ }
+ resolve({ data: buf, width: width, height: height});
+ };
+ img.onerror = function () {
+ reject(new Error('JpegDecode failed to load image'));
+ };
+ img.src = imageUrl;
+ });
+ });
+ },
+
+ fetchDocument: function WorkerTransport_fetchDocument(loadingTask, source) {
+ this.loadingTask = loadingTask;
+
+ source.disableAutoFetch = PDFJS.disableAutoFetch;
+ source.disableStream = PDFJS.disableStream;
+ source.chunkedViewerLoading = !!this.pdfDataRangeTransport;
+ if (this.pdfDataRangeTransport) {
+ source.length = this.pdfDataRangeTransport.length;
+ source.initialData = this.pdfDataRangeTransport.initialData;
+ }
+ this.messageHandler.send('GetDocRequest', {
+ source: source,
+ disableRange: PDFJS.disableRange,
+ maxImageSize: PDFJS.maxImageSize,
+ cMapUrl: PDFJS.cMapUrl,
+ cMapPacked: PDFJS.cMapPacked,
+ disableFontFace: PDFJS.disableFontFace,
+ disableCreateObjectURL: PDFJS.disableCreateObjectURL,
+ verbosity: PDFJS.verbosity
+ });
+ },
+
+ getData: function WorkerTransport_getData() {
+ return this.messageHandler.sendWithPromise('GetData', null);
+ },
+
+ getPage: function WorkerTransport_getPage(pageNumber, capability) {
+ if (pageNumber <= 0 || pageNumber > this.numPages ||
+ (pageNumber|0) !== pageNumber) {
+ return Promise.reject(new Error('Invalid page request'));
+ }
+
+ var pageIndex = pageNumber - 1;
+ if (pageIndex in this.pagePromises) {
+ return this.pagePromises[pageIndex];
+ }
+ var promise = this.messageHandler.sendWithPromise('GetPage', {
+ pageIndex: pageIndex
+ }).then(function (pageInfo) {
+ var page = new PDFPageProxy(pageIndex, pageInfo, this);
+ this.pageCache[pageIndex] = page;
+ return page;
+ }.bind(this));
+ this.pagePromises[pageIndex] = promise;
+ return promise;
+ },
+
+ getPageIndex: function WorkerTransport_getPageIndexByRef(ref) {
+ return this.messageHandler.sendWithPromise('GetPageIndex', { ref: ref });
+ },
+
+ getAnnotations: function WorkerTransport_getAnnotations(pageIndex) {
+ return this.messageHandler.sendWithPromise('GetAnnotations',
+ { pageIndex: pageIndex });
+ },
+
+ getDestinations: function WorkerTransport_getDestinations() {
+ return this.messageHandler.sendWithPromise('GetDestinations', null);
+ },
+
+ getDestination: function WorkerTransport_getDestination(id) {
+ return this.messageHandler.sendWithPromise('GetDestination', { id: id } );
+ },
+
+ getAttachments: function WorkerTransport_getAttachments() {
+ return this.messageHandler.sendWithPromise('GetAttachments', null);
+ },
+
+ getJavaScript: function WorkerTransport_getJavaScript() {
+ return this.messageHandler.sendWithPromise('GetJavaScript', null);
+ },
+
+ getOutline: function WorkerTransport_getOutline() {
+ return this.messageHandler.sendWithPromise('GetOutline', null);
+ },
+
+ getMetadata: function WorkerTransport_getMetadata() {
+ return this.messageHandler.sendWithPromise('GetMetadata', null).
+ then(function transportMetadata(results) {
+ return {
+ info: results[0],
+ metadata: (results[1] ? new PDFJS.Metadata(results[1]) : null)
+ };
+ });
+ },
+
+ getStats: function WorkerTransport_getStats() {
+ return this.messageHandler.sendWithPromise('GetStats', null);
+ },
+
+ startCleanup: function WorkerTransport_startCleanup() {
+ this.messageHandler.sendWithPromise('Cleanup', null).
+ then(function endCleanup() {
+ for (var i = 0, ii = this.pageCache.length; i < ii; i++) {
+ var page = this.pageCache[i];
+ if (page) {
+ page.destroy();
+ }
+ }
+ this.commonObjs.clear();
+ FontLoader.clear();
+ }.bind(this));
+ }
+ };
+ return WorkerTransport;
+
+})();
+
+/**
+ * A PDF document and page is built of many objects. E.g. there are objects
+ * for fonts, images, rendering code and such. These objects might get processed
+ * inside of a worker. The `PDFObjects` implements some basic functions to
+ * manage these objects.
+ * @ignore
+ */
+var PDFObjects = (function PDFObjectsClosure() {
+ function PDFObjects() {
+ this.objs = {};
+ }
+
+ PDFObjects.prototype = {
+ /**
+ * Internal function.
+ * Ensures there is an object defined for `objId`.
+ */
+ ensureObj: function PDFObjects_ensureObj(objId) {
+ if (this.objs[objId]) {
+ return this.objs[objId];
+ }
+
+ var obj = {
+ capability: createPromiseCapability(),
+ data: null,
+ resolved: false
+ };
+ this.objs[objId] = obj;
+
+ return obj;
+ },
+
+ /**
+ * If called *without* callback, this returns the data of `objId` but the
+ * object needs to be resolved. If it isn't, this function throws.
+ *
+ * If called *with* a callback, the callback is called with the data of the
+ * object once the object is resolved. That means, if you call this
+ * function and the object is already resolved, the callback gets called
+ * right away.
+ */
+ get: function PDFObjects_get(objId, callback) {
+ // If there is a callback, then the get can be async and the object is
+ // not required to be resolved right now
+ if (callback) {
+ this.ensureObj(objId).capability.promise.then(callback);
+ return null;
+ }
+
+ // If there isn't a callback, the user expects to get the resolved data
+ // directly.
+ var obj = this.objs[objId];
+
+ // If there isn't an object yet or the object isn't resolved, then the
+ // data isn't ready yet!
+ if (!obj || !obj.resolved) {
+ error('Requesting object that isn\'t resolved yet ' + objId);
+ }
+
+ return obj.data;
+ },
+
+ /**
+ * Resolves the object `objId` with optional `data`.
+ */
+ resolve: function PDFObjects_resolve(objId, data) {
+ var obj = this.ensureObj(objId);
+
+ obj.resolved = true;
+ obj.data = data;
+ obj.capability.resolve(data);
+ },
+
+ isResolved: function PDFObjects_isResolved(objId) {
+ var objs = this.objs;
+
+ if (!objs[objId]) {
+ return false;
+ } else {
+ return objs[objId].resolved;
+ }
+ },
+
+ hasData: function PDFObjects_hasData(objId) {
+ return this.isResolved(objId);
+ },
+
+ /**
+ * Returns the data of `objId` if object exists, null otherwise.
+ */
+ getData: function PDFObjects_getData(objId) {
+ var objs = this.objs;
+ if (!objs[objId] || !objs[objId].resolved) {
+ return null;
+ } else {
+ return objs[objId].data;
+ }
+ },
+
+ clear: function PDFObjects_clear() {
+ this.objs = {};
+ }
+ };
+ return PDFObjects;
+})();
+
+/**
+ * Allows controlling of the rendering tasks.
+ * @class
+ */
+var RenderTask = (function RenderTaskClosure() {
+ function RenderTask(internalRenderTask) {
+ this._internalRenderTask = internalRenderTask;
+
+ /**
+ * Callback for incremental rendering -- a function that will be called
+ * each time the rendering is paused. To continue rendering call the
+ * function that is the first argument to the callback.
+ * @type {function}
+ */
+ this.onContinue = null;
+ }
+
+ RenderTask.prototype = /** @lends RenderTask.prototype */ {
+ /**
+ * Promise for rendering task completion.
+ * @return {Promise}
+ */
+ get promise() {
+ return this._internalRenderTask.capability.promise;
+ },
+
+ /**
+ * Cancels the rendering task. If the task is currently rendering it will
+ * not be cancelled until graphics pauses with a timeout. The promise that
+ * this object extends will resolved when cancelled.
+ */
+ cancel: function RenderTask_cancel() {
+ this._internalRenderTask.cancel();
+ },
+
+ /**
+ * Registers callbacks to indicate the rendering task completion.
+ *
+ * @param {function} onFulfilled The callback for the rendering completion.
+ * @param {function} onRejected The callback for the rendering failure.
+ * @return {Promise} A promise that is resolved after the onFulfilled or
+ * onRejected callback.
+ */
+ then: function RenderTask_then(onFulfilled, onRejected) {
+ return this.promise.then.apply(this.promise, arguments);
+ }
+ };
+
+ return RenderTask;
+})();
+
+/**
+ * For internal use only.
+ * @ignore
+ */
+var InternalRenderTask = (function InternalRenderTaskClosure() {
+
+ function InternalRenderTask(callback, params, objs, commonObjs, operatorList,
+ pageNumber) {
+ this.callback = callback;
+ this.params = params;
+ this.objs = objs;
+ this.commonObjs = commonObjs;
+ this.operatorListIdx = null;
+ this.operatorList = operatorList;
+ this.pageNumber = pageNumber;
+ this.running = false;
+ this.graphicsReadyCallback = null;
+ this.graphicsReady = false;
+ this.cancelled = false;
+ this.capability = createPromiseCapability();
+ this.task = new RenderTask(this);
+ // caching this-bound methods
+ this._continueBound = this._continue.bind(this);
+ this._scheduleNextBound = this._scheduleNext.bind(this);
+ this._nextBound = this._next.bind(this);
+ }
+
+ InternalRenderTask.prototype = {
+
+ initalizeGraphics:
+ function InternalRenderTask_initalizeGraphics(transparency) {
+
+ if (this.cancelled) {
+ return;
+ }
+ if (PDFJS.pdfBug && 'StepperManager' in globalScope &&
+ globalScope.StepperManager.enabled) {
+ this.stepper = globalScope.StepperManager.create(this.pageNumber - 1);
+ this.stepper.init(this.operatorList);
+ this.stepper.nextBreakPoint = this.stepper.getNextBreakPoint();
+ }
+
+ var params = this.params;
+ this.gfx = new CanvasGraphics(params.canvasContext, this.commonObjs,
+ this.objs, params.imageLayer);
+
+ this.gfx.beginDrawing(params.viewport, transparency);
+ this.operatorListIdx = 0;
+ this.graphicsReady = true;
+ if (this.graphicsReadyCallback) {
+ this.graphicsReadyCallback();
+ }
+ },
+
+ cancel: function InternalRenderTask_cancel() {
+ this.running = false;
+ this.cancelled = true;
+ this.callback('cancelled');
+ },
+
+ operatorListChanged: function InternalRenderTask_operatorListChanged() {
+ if (!this.graphicsReady) {
+ if (!this.graphicsReadyCallback) {
+ this.graphicsReadyCallback = this._continueBound;
+ }
+ return;
+ }
+
+ if (this.stepper) {
+ this.stepper.updateOperatorList(this.operatorList);
+ }
+
+ if (this.running) {
+ return;
+ }
+ this._continue();
+ },
+
+ _continue: function InternalRenderTask__continue() {
+ this.running = true;
+ if (this.cancelled) {
+ return;
+ }
+ if (this.task.onContinue) {
+ this.task.onContinue.call(this.task, this._scheduleNextBound);
+ } else {
+ this._scheduleNext();
+ }
+ },
+
+ _scheduleNext: function InternalRenderTask__scheduleNext() {
+ window.requestAnimationFrame(this._nextBound);
+ },
+
+ _next: function InternalRenderTask__next() {
+ if (this.cancelled) {
+ return;
+ }
+ this.operatorListIdx = this.gfx.executeOperatorList(this.operatorList,
+ this.operatorListIdx,
+ this._continueBound,
+ this.stepper);
+ if (this.operatorListIdx === this.operatorList.argsArray.length) {
+ this.running = false;
+ if (this.operatorList.lastChunk) {
+ this.gfx.endDrawing();
+ this.callback();
+ }
+ }
+ }
+
+ };
+
+ return InternalRenderTask;
+})();
+
+
+var Metadata = PDFJS.Metadata = (function MetadataClosure() {
+ function fixMetadata(meta) {
+ return meta.replace(/>\\376\\377([^<]+)/g, function(all, codes) {
+ var bytes = codes.replace(/\\([0-3])([0-7])([0-7])/g,
+ function(code, d1, d2, d3) {
+ return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1);
+ });
+ var chars = '';
+ for (var i = 0; i < bytes.length; i += 2) {
+ var code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1);
+ chars += code >= 32 && code < 127 && code !== 60 && code !== 62 &&
+ code !== 38 && false ? String.fromCharCode(code) :
+ '&#x' + (0x10000 + code).toString(16).substring(1) + ';';
+ }
+ return '>' + chars;
+ });
+ }
+
+ function Metadata(meta) {
+ if (typeof meta === 'string') {
+ // Ghostscript produces invalid metadata
+ meta = fixMetadata(meta);
+
+ var parser = new DOMParser();
+ meta = parser.parseFromString(meta, 'application/xml');
+ } else if (!(meta instanceof Document)) {
+ error('Metadata: Invalid metadata object');
+ }
+
+ this.metaDocument = meta;
+ this.metadata = {};
+ this.parse();
+ }
+
+ Metadata.prototype = {
+ parse: function Metadata_parse() {
+ var doc = this.metaDocument;
+ var rdf = doc.documentElement;
+
+ if (rdf.nodeName.toLowerCase() !== 'rdf:rdf') { // Wrapped in <xmpmeta>
+ rdf = rdf.firstChild;
+ while (rdf && rdf.nodeName.toLowerCase() !== 'rdf:rdf') {
+ rdf = rdf.nextSibling;
+ }
+ }
+
+ var nodeName = (rdf) ? rdf.nodeName.toLowerCase() : null;
+ if (!rdf || nodeName !== 'rdf:rdf' || !rdf.hasChildNodes()) {
+ return;
+ }
+
+ var children = rdf.childNodes, desc, entry, name, i, ii, length, iLength;
+ for (i = 0, length = children.length; i < length; i++) {
+ desc = children[i];
+ if (desc.nodeName.toLowerCase() !== 'rdf:description') {
+ continue;
+ }
+
+ for (ii = 0, iLength = desc.childNodes.length; ii < iLength; ii++) {
+ if (desc.childNodes[ii].nodeName.toLowerCase() !== '#text') {
+ entry = desc.childNodes[ii];
+ name = entry.nodeName.toLowerCase();
+ this.metadata[name] = entry.textContent.trim();
+ }
+ }
+ }
+ },
+
+ get: function Metadata_get(name) {
+ return this.metadata[name] || null;
+ },
+
+ has: function Metadata_has(name) {
+ return typeof this.metadata[name] !== 'undefined';
+ }
+ };
+
+ return Metadata;
+})();
+
+
+// <canvas> contexts store most of the state we need natively.
+// However, PDF needs a bit more state, which we store here.
+
+// Minimal font size that would be used during canvas fillText operations.
+var MIN_FONT_SIZE = 16;
+// Maximum font size that would be used during canvas fillText operations.
+var MAX_FONT_SIZE = 100;
+var MAX_GROUP_SIZE = 4096;
+
+// Heuristic value used when enforcing minimum line widths.
+var MIN_WIDTH_FACTOR = 0.65;
+
+var COMPILE_TYPE3_GLYPHS = true;
+var MAX_SIZE_TO_COMPILE = 1000;
+
+var FULL_CHUNK_HEIGHT = 16;
+
+function createScratchCanvas(width, height) {
+ var canvas = document.createElement('canvas');
+ canvas.width = width;
+ canvas.height = height;
+ return canvas;
+}
+
+function addContextCurrentTransform(ctx) {
+ // If the context doesn't expose a `mozCurrentTransform`, add a JS based one.
+ if (!ctx.mozCurrentTransform) {
+ ctx._originalSave = ctx.save;
+ ctx._originalRestore = ctx.restore;
+ ctx._originalRotate = ctx.rotate;
+ ctx._originalScale = ctx.scale;
+ ctx._originalTranslate = ctx.translate;
+ ctx._originalTransform = ctx.transform;
+ ctx._originalSetTransform = ctx.setTransform;
+
+ ctx._transformMatrix = ctx._transformMatrix || [1, 0, 0, 1, 0, 0];
+ ctx._transformStack = [];
+
+ Object.defineProperty(ctx, 'mozCurrentTransform', {
+ get: function getCurrentTransform() {
+ return this._transformMatrix;
+ }
+ });
+
+ Object.defineProperty(ctx, 'mozCurrentTransformInverse', {
+ get: function getCurrentTransformInverse() {
+ // Calculation done using WolframAlpha:
+ // http://www.wolframalpha.com/input/?
+ // i=Inverse+{{a%2C+c%2C+e}%2C+{b%2C+d%2C+f}%2C+{0%2C+0%2C+1}}
+
+ var m = this._transformMatrix;
+ var a = m[0], b = m[1], c = m[2], d = m[3], e = m[4], f = m[5];
+
+ var ad_bc = a * d - b * c;
+ var bc_ad = b * c - a * d;
+
+ return [
+ d / ad_bc,
+ b / bc_ad,
+ c / bc_ad,
+ a / ad_bc,
+ (d * e - c * f) / bc_ad,
+ (b * e - a * f) / ad_bc
+ ];
+ }
+ });
+
+ ctx.save = function ctxSave() {
+ var old = this._transformMatrix;
+ this._transformStack.push(old);
+ this._transformMatrix = old.slice(0, 6);
+
+ this._originalSave();
+ };
+
+ ctx.restore = function ctxRestore() {
+ var prev = this._transformStack.pop();
+ if (prev) {
+ this._transformMatrix = prev;
+ this._originalRestore();
+ }
+ };
+
+ ctx.translate = function ctxTranslate(x, y) {
+ var m = this._transformMatrix;
+ m[4] = m[0] * x + m[2] * y + m[4];
+ m[5] = m[1] * x + m[3] * y + m[5];
+
+ this._originalTranslate(x, y);
+ };
+
+ ctx.scale = function ctxScale(x, y) {
+ var m = this._transformMatrix;
+ m[0] = m[0] * x;
+ m[1] = m[1] * x;
+ m[2] = m[2] * y;
+ m[3] = m[3] * y;
+
+ this._originalScale(x, y);
+ };
+
+ ctx.transform = function ctxTransform(a, b, c, d, e, f) {
+ var m = this._transformMatrix;
+ this._transformMatrix = [
+ m[0] * a + m[2] * b,
+ m[1] * a + m[3] * b,
+ m[0] * c + m[2] * d,
+ m[1] * c + m[3] * d,
+ m[0] * e + m[2] * f + m[4],
+ m[1] * e + m[3] * f + m[5]
+ ];
+
+ ctx._originalTransform(a, b, c, d, e, f);
+ };
+
+ ctx.setTransform = function ctxSetTransform(a, b, c, d, e, f) {
+ this._transformMatrix = [a, b, c, d, e, f];
+
+ ctx._originalSetTransform(a, b, c, d, e, f);
+ };
+
+ ctx.rotate = function ctxRotate(angle) {
+ var cosValue = Math.cos(angle);
+ var sinValue = Math.sin(angle);
+
+ var m = this._transformMatrix;
+ this._transformMatrix = [
+ m[0] * cosValue + m[2] * sinValue,
+ m[1] * cosValue + m[3] * sinValue,
+ m[0] * (-sinValue) + m[2] * cosValue,
+ m[1] * (-sinValue) + m[3] * cosValue,
+ m[4],
+ m[5]
+ ];
+
+ this._originalRotate(angle);
+ };
+ }
+}
+
+var CachedCanvases = (function CachedCanvasesClosure() {
+ var cache = {};
+ return {
+ getCanvas: function CachedCanvases_getCanvas(id, width, height,
+ trackTransform) {
+ var canvasEntry;
+ if (cache[id] !== undefined) {
+ canvasEntry = cache[id];
+ canvasEntry.canvas.width = width;
+ canvasEntry.canvas.height = height;
+ // reset canvas transform for emulated mozCurrentTransform, if needed
+ canvasEntry.context.setTransform(1, 0, 0, 1, 0, 0);
+ } else {
+ var canvas = createScratchCanvas(width, height);
+ var ctx = canvas.getContext('2d');
+ if (trackTransform) {
+ addContextCurrentTransform(ctx);
+ }
+ cache[id] = canvasEntry = {canvas: canvas, context: ctx};
+ }
+ return canvasEntry;
+ },
+ clear: function () {
+ for (var id in cache) {
+ var canvasEntry = cache[id];
+ // Zeroing the width and height causes Firefox to release graphics
+ // resources immediately, which can greatly reduce memory consumption.
+ canvasEntry.canvas.width = 0;
+ canvasEntry.canvas.height = 0;
+ delete cache[id];
+ }
+ }
+ };
+})();
+
+function compileType3Glyph(imgData) {
+ var POINT_TO_PROCESS_LIMIT = 1000;
+
+ var width = imgData.width, height = imgData.height;
+ var i, j, j0, width1 = width + 1;
+ var points = new Uint8Array(width1 * (height + 1));
+ var POINT_TYPES =
+ new Uint8Array([0, 2, 4, 0, 1, 0, 5, 4, 8, 10, 0, 8, 0, 2, 1, 0]);
+
+ // decodes bit-packed mask data
+ var lineSize = (width + 7) & ~7, data0 = imgData.data;
+ var data = new Uint8Array(lineSize * height), pos = 0, ii;
+ for (i = 0, ii = data0.length; i < ii; i++) {
+ var mask = 128, elem = data0[i];
+ while (mask > 0) {
+ data[pos++] = (elem & mask) ? 0 : 255;
+ mask >>= 1;
+ }
+ }
+
+ // finding iteresting points: every point is located between mask pixels,
+ // so there will be points of the (width + 1)x(height + 1) grid. Every point
+ // will have flags assigned based on neighboring mask pixels:
+ // 4 | 8
+ // --P--
+ // 2 | 1
+ // We are interested only in points with the flags:
+ // - outside corners: 1, 2, 4, 8;
+ // - inside corners: 7, 11, 13, 14;
+ // - and, intersections: 5, 10.
+ var count = 0;
+ pos = 0;
+ if (data[pos] !== 0) {
+ points[0] = 1;
+ ++count;
+ }
+ for (j = 1; j < width; j++) {
+ if (data[pos] !== data[pos + 1]) {
+ points[j] = data[pos] ? 2 : 1;
+ ++count;
+ }
+ pos++;
+ }
+ if (data[pos] !== 0) {
+ points[j] = 2;
+ ++count;
+ }
+ for (i = 1; i < height; i++) {
+ pos = i * lineSize;
+ j0 = i * width1;
+ if (data[pos - lineSize] !== data[pos]) {
+ points[j0] = data[pos] ? 1 : 8;
+ ++count;
+ }
+ // 'sum' is the position of the current pixel configuration in the 'TYPES'
+ // array (in order 8-1-2-4, so we can use '>>2' to shift the column).
+ var sum = (data[pos] ? 4 : 0) + (data[pos - lineSize] ? 8 : 0);
+ for (j = 1; j < width; j++) {
+ sum = (sum >> 2) + (data[pos + 1] ? 4 : 0) +
+ (data[pos - lineSize + 1] ? 8 : 0);
+ if (POINT_TYPES[sum]) {
+ points[j0 + j] = POINT_TYPES[sum];
+ ++count;
+ }
+ pos++;
+ }
+ if (data[pos - lineSize] !== data[pos]) {
+ points[j0 + j] = data[pos] ? 2 : 4;
+ ++count;
+ }
+
+ if (count > POINT_TO_PROCESS_LIMIT) {
+ return null;
+ }
+ }
+
+ pos = lineSize * (height - 1);
+ j0 = i * width1;
+ if (data[pos] !== 0) {
+ points[j0] = 8;
+ ++count;
+ }
+ for (j = 1; j < width; j++) {
+ if (data[pos] !== data[pos + 1]) {
+ points[j0 + j] = data[pos] ? 4 : 8;
+ ++count;
+ }
+ pos++;
+ }
+ if (data[pos] !== 0) {
+ points[j0 + j] = 4;
+ ++count;
+ }
+ if (count > POINT_TO_PROCESS_LIMIT) {
+ return null;
+ }
+
+ // building outlines
+ var steps = new Int32Array([0, width1, -1, 0, -width1, 0, 0, 0, 1]);
+ var outlines = [];
+ for (i = 0; count && i <= height; i++) {
+ var p = i * width1;
+ var end = p + width;
+ while (p < end && !points[p]) {
+ p++;
+ }
+ if (p === end) {
+ continue;
+ }
+ var coords = [p % width1, i];
+
+ var type = points[p], p0 = p, pp;
+ do {
+ var step = steps[type];
+ do {
+ p += step;
+ } while (!points[p]);
+
+ pp = points[p];
+ if (pp !== 5 && pp !== 10) {
+ // set new direction
+ type = pp;
+ // delete mark
+ points[p] = 0;
+ } else { // type is 5 or 10, ie, a crossing
+ // set new direction
+ type = pp & ((0x33 * type) >> 4);
+ // set new type for "future hit"
+ points[p] &= (type >> 2 | type << 2);
+ }
+
+ coords.push(p % width1);
+ coords.push((p / width1) | 0);
+ --count;
+ } while (p0 !== p);
+ outlines.push(coords);
+ --i;
+ }
+
+ var drawOutline = function(c) {
+ c.save();
+ // the path shall be painted in [0..1]x[0..1] space
+ c.scale(1 / width, -1 / height);
+ c.translate(0, -height);
+ c.beginPath();
+ for (var i = 0, ii = outlines.length; i < ii; i++) {
+ var o = outlines[i];
+ c.moveTo(o[0], o[1]);
+ for (var j = 2, jj = o.length; j < jj; j += 2) {
+ c.lineTo(o[j], o[j+1]);
+ }
+ }
+ c.fill();
+ c.beginPath();
+ c.restore();
+ };
+
+ return drawOutline;
+}
+
+var CanvasExtraState = (function CanvasExtraStateClosure() {
+ function CanvasExtraState(old) {
+ // Are soft masks and alpha values shapes or opacities?
+ this.alphaIsShape = false;
+ this.fontSize = 0;
+ this.fontSizeScale = 1;
+ this.textMatrix = IDENTITY_MATRIX;
+ this.textMatrixScale = 1;
+ this.fontMatrix = FONT_IDENTITY_MATRIX;
+ this.leading = 0;
+ // Current point (in user coordinates)
+ this.x = 0;
+ this.y = 0;
+ // Start of text line (in text coordinates)
+ this.lineX = 0;
+ this.lineY = 0;
+ // Character and word spacing
+ this.charSpacing = 0;
+ this.wordSpacing = 0;
+ this.textHScale = 1;
+ this.textRenderingMode = TextRenderingMode.FILL;
+ this.textRise = 0;
+ // Default fore and background colors
+ this.fillColor = '#000000';
+ this.strokeColor = '#000000';
+ this.patternFill = false;
+ // Note: fill alpha applies to all non-stroking operations
+ this.fillAlpha = 1;
+ this.strokeAlpha = 1;
+ this.lineWidth = 1;
+ this.activeSMask = null; // nonclonable field (see the save method below)
+
+ this.old = old;
+ }
+
+ CanvasExtraState.prototype = {
+ clone: function CanvasExtraState_clone() {
+ return Object.create(this);
+ },
+ setCurrentPoint: function CanvasExtraState_setCurrentPoint(x, y) {
+ this.x = x;
+ this.y = y;
+ }
+ };
+ return CanvasExtraState;
+})();
+
+var CanvasGraphics = (function CanvasGraphicsClosure() {
+ // Defines the time the executeOperatorList is going to be executing
+ // before it stops and shedules a continue of execution.
+ var EXECUTION_TIME = 15;
+ // Defines the number of steps before checking the execution time
+ var EXECUTION_STEPS = 10;
+
+ function CanvasGraphics(canvasCtx, commonObjs, objs, imageLayer) {
+ this.ctx = canvasCtx;
+ this.current = new CanvasExtraState();
+ this.stateStack = [];
+ this.pendingClip = null;
+ this.pendingEOFill = false;
+ this.res = null;
+ this.xobjs = null;
+ this.commonObjs = commonObjs;
+ this.objs = objs;
+ this.imageLayer = imageLayer;
+ this.groupStack = [];
+ this.processingType3 = null;
+ // Patterns are painted relative to the initial page/form transform, see pdf
+ // spec 8.7.2 NOTE 1.
+ this.baseTransform = null;
+ this.baseTransformStack = [];
+ this.groupLevel = 0;
+ this.smaskStack = [];
+ this.smaskCounter = 0;
+ this.tempSMask = null;
+ if (canvasCtx) {
+ // NOTE: if mozCurrentTransform is polyfilled, then the current state of
+ // the transformation must already be set in canvasCtx._transformMatrix.
+ addContextCurrentTransform(canvasCtx);
+ }
+ this.cachedGetSinglePixelWidth = null;
+ }
+
+ function putBinaryImageData(ctx, imgData) {
+ if (typeof ImageData !== 'undefined' && imgData instanceof ImageData) {
+ ctx.putImageData(imgData, 0, 0);
+ return;
+ }
+
+ // Put the image data to the canvas in chunks, rather than putting the
+ // whole image at once. This saves JS memory, because the ImageData object
+ // is smaller. It also possibly saves C++ memory within the implementation
+ // of putImageData(). (E.g. in Firefox we make two short-lived copies of
+ // the data passed to putImageData()). |n| shouldn't be too small, however,
+ // because too many putImageData() calls will slow things down.
+ //
+ // Note: as written, if the last chunk is partial, the putImageData() call
+ // will (conceptually) put pixels past the bounds of the canvas. But
+ // that's ok; any such pixels are ignored.
+
+ var height = imgData.height, width = imgData.width;
+ var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
+ var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
+ var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
+
+ var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
+ var srcPos = 0, destPos;
+ var src = imgData.data;
+ var dest = chunkImgData.data;
+ var i, j, thisChunkHeight, elemsInThisChunk;
+
+ // There are multiple forms in which the pixel data can be passed, and
+ // imgData.kind tells us which one this is.
+ if (imgData.kind === ImageKind.GRAYSCALE_1BPP) {
+ // Grayscale, 1 bit per pixel (i.e. black-and-white).
+ var srcLength = src.byteLength;
+ var dest32 = PDFJS.hasCanvasTypedArrays ? new Uint32Array(dest.buffer) :
+ new Uint32ArrayView(dest);
+ var dest32DataLength = dest32.length;
+ var fullSrcDiff = (width + 7) >> 3;
+ var white = 0xFFFFFFFF;
+ var black = (PDFJS.isLittleEndian || !PDFJS.hasCanvasTypedArrays) ?
+ 0xFF000000 : 0x000000FF;
+ for (i = 0; i < totalChunks; i++) {
+ thisChunkHeight =
+ (i < fullChunks) ? FULL_CHUNK_HEIGHT : partialChunkHeight;
+ destPos = 0;
+ for (j = 0; j < thisChunkHeight; j++) {
+ var srcDiff = srcLength - srcPos;
+ var k = 0;
+ var kEnd = (srcDiff > fullSrcDiff) ? width : srcDiff * 8 - 7;
+ var kEndUnrolled = kEnd & ~7;
+ var mask = 0;
+ var srcByte = 0;
+ for (; k < kEndUnrolled; k += 8) {
+ srcByte = src[srcPos++];
+ dest32[destPos++] = (srcByte & 128) ? white : black;
+ dest32[destPos++] = (srcByte & 64) ? white : black;
+ dest32[destPos++] = (srcByte & 32) ? white : black;
+ dest32[destPos++] = (srcByte & 16) ? white : black;
+ dest32[destPos++] = (srcByte & 8) ? white : black;
+ dest32[destPos++] = (srcByte & 4) ? white : black;
+ dest32[destPos++] = (srcByte & 2) ? white : black;
+ dest32[destPos++] = (srcByte & 1) ? white : black;
+ }
+ for (; k < kEnd; k++) {
+ if (mask === 0) {
+ srcByte = src[srcPos++];
+ mask = 128;
+ }
+
+ dest32[destPos++] = (srcByte & mask) ? white : black;
+ mask >>= 1;
+ }
+ }
+ // We ran out of input. Make all remaining pixels transparent.
+ while (destPos < dest32DataLength) {
+ dest32[destPos++] = 0;
+ }
+
+ ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
+ }
+ } else if (imgData.kind === ImageKind.RGBA_32BPP) {
+ // RGBA, 32-bits per pixel.
+
+ j = 0;
+ elemsInThisChunk = width * FULL_CHUNK_HEIGHT * 4;
+ for (i = 0; i < fullChunks; i++) {
+ dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
+ srcPos += elemsInThisChunk;
+
+ ctx.putImageData(chunkImgData, 0, j);
+ j += FULL_CHUNK_HEIGHT;
+ }
+ if (i < totalChunks) {
+ elemsInThisChunk = width * partialChunkHeight * 4;
+ dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
+ ctx.putImageData(chunkImgData, 0, j);
+ }
+
+ } else if (imgData.kind === ImageKind.RGB_24BPP) {
+ // RGB, 24-bits per pixel.
+ thisChunkHeight = FULL_CHUNK_HEIGHT;
+ elemsInThisChunk = width * thisChunkHeight;
+ for (i = 0; i < totalChunks; i++) {
+ if (i >= fullChunks) {
+ thisChunkHeight = partialChunkHeight;
+ elemsInThisChunk = width * thisChunkHeight;
+ }
+
+ destPos = 0;
+ for (j = elemsInThisChunk; j--;) {
+ dest[destPos++] = src[srcPos++];
+ dest[destPos++] = src[srcPos++];
+ dest[destPos++] = src[srcPos++];
+ dest[destPos++] = 255;
+ }
+ ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
+ }
+ } else {
+ error('bad image kind: ' + imgData.kind);
+ }
+ }
+
+ function putBinaryImageMask(ctx, imgData) {
+ var height = imgData.height, width = imgData.width;
+ var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
+ var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
+ var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
+
+ var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
+ var srcPos = 0;
+ var src = imgData.data;
+ var dest = chunkImgData.data;
+
+ for (var i = 0; i < totalChunks; i++) {
+ var thisChunkHeight =
+ (i < fullChunks) ? FULL_CHUNK_HEIGHT : partialChunkHeight;
+
+ // Expand the mask so it can be used by the canvas. Any required
+ // inversion has already been handled.
+ var destPos = 3; // alpha component offset
+ for (var j = 0; j < thisChunkHeight; j++) {
+ var mask = 0;
+ for (var k = 0; k < width; k++) {
+ if (!mask) {
+ var elem = src[srcPos++];
+ mask = 128;
+ }
+ dest[destPos] = (elem & mask) ? 0 : 255;
+ destPos += 4;
+ mask >>= 1;
+ }
+ }
+ ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
+ }
+ }
+
+ function copyCtxState(sourceCtx, destCtx) {
+ var properties = ['strokeStyle', 'fillStyle', 'fillRule', 'globalAlpha',
+ 'lineWidth', 'lineCap', 'lineJoin', 'miterLimit',
+ 'globalCompositeOperation', 'font'];
+ for (var i = 0, ii = properties.length; i < ii; i++) {
+ var property = properties[i];
+ if (sourceCtx[property] !== undefined) {
+ destCtx[property] = sourceCtx[property];
+ }
+ }
+ if (sourceCtx.setLineDash !== undefined) {
+ destCtx.setLineDash(sourceCtx.getLineDash());
+ destCtx.lineDashOffset = sourceCtx.lineDashOffset;
+ } else if (sourceCtx.mozDashOffset !== undefined) {
+ destCtx.mozDash = sourceCtx.mozDash;
+ destCtx.mozDashOffset = sourceCtx.mozDashOffset;
+ }
+ }
+
+ function composeSMaskBackdrop(bytes, r0, g0, b0) {
+ var length = bytes.length;
+ for (var i = 3; i < length; i += 4) {
+ var alpha = bytes[i];
+ if (alpha === 0) {
+ bytes[i - 3] = r0;
+ bytes[i - 2] = g0;
+ bytes[i - 1] = b0;
+ } else if (alpha < 255) {
+ var alpha_ = 255 - alpha;
+ bytes[i - 3] = (bytes[i - 3] * alpha + r0 * alpha_) >> 8;
+ bytes[i - 2] = (bytes[i - 2] * alpha + g0 * alpha_) >> 8;
+ bytes[i - 1] = (bytes[i - 1] * alpha + b0 * alpha_) >> 8;
+ }
+ }
+ }
+
+ function composeSMaskAlpha(maskData, layerData) {
+ var length = maskData.length;
+ var scale = 1 / 255;
+ for (var i = 3; i < length; i += 4) {
+ var alpha = maskData[i];
+ layerData[i] = (layerData[i] * alpha * scale) | 0;
+ }
+ }
+
+ function composeSMaskLuminosity(maskData, layerData) {
+ var length = maskData.length;
+ for (var i = 3; i < length; i += 4) {
+ var y = (maskData[i - 3] * 77) + // * 0.3 / 255 * 0x10000
+ (maskData[i - 2] * 152) + // * 0.59 ....
+ (maskData[i - 1] * 28); // * 0.11 ....
+ layerData[i] = (layerData[i] * y) >> 16;
+ }
+ }
+
+ function genericComposeSMask(maskCtx, layerCtx, width, height,
+ subtype, backdrop) {
+ var hasBackdrop = !!backdrop;
+ var r0 = hasBackdrop ? backdrop[0] : 0;
+ var g0 = hasBackdrop ? backdrop[1] : 0;
+ var b0 = hasBackdrop ? backdrop[2] : 0;
+
+ var composeFn;
+ if (subtype === 'Luminosity') {
+ composeFn = composeSMaskLuminosity;
+ } else {
+ composeFn = composeSMaskAlpha;
+ }
+
+ // processing image in chunks to save memory
+ var PIXELS_TO_PROCESS = 1048576;
+ var chunkSize = Math.min(height, Math.ceil(PIXELS_TO_PROCESS / width));
+ for (var row = 0; row < height; row += chunkSize) {
+ var chunkHeight = Math.min(chunkSize, height - row);
+ var maskData = maskCtx.getImageData(0, row, width, chunkHeight);
+ var layerData = layerCtx.getImageData(0, row, width, chunkHeight);
+
+ if (hasBackdrop) {
+ composeSMaskBackdrop(maskData.data, r0, g0, b0);
+ }
+ composeFn(maskData.data, layerData.data);
+
+ maskCtx.putImageData(layerData, 0, row);
+ }
+ }
+
+ function composeSMask(ctx, smask, layerCtx) {
+ var mask = smask.canvas;
+ var maskCtx = smask.context;
+
+ ctx.setTransform(smask.scaleX, 0, 0, smask.scaleY,
+ smask.offsetX, smask.offsetY);
+
+ var backdrop = smask.backdrop || null;
+ if (WebGLUtils.isEnabled) {
+ var composed = WebGLUtils.composeSMask(layerCtx.canvas, mask,
+ {subtype: smask.subtype, backdrop: backdrop});
+ ctx.setTransform(1, 0, 0, 1, 0, 0);
+ ctx.drawImage(composed, smask.offsetX, smask.offsetY);
+ return;
+ }
+ genericComposeSMask(maskCtx, layerCtx, mask.width, mask.height,
+ smask.subtype, backdrop);
+ ctx.drawImage(mask, 0, 0);
+ }
+
+ var LINE_CAP_STYLES = ['butt', 'round', 'square'];
+ var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];
+ var NORMAL_CLIP = {};
+ var EO_CLIP = {};
+
+ CanvasGraphics.prototype = {
+
+ beginDrawing: function CanvasGraphics_beginDrawing(viewport, transparency) {
+ // For pdfs that use blend modes we have to clear the canvas else certain
+ // blend modes can look wrong since we'd be blending with a white
+ // backdrop. The problem with a transparent backdrop though is we then
+ // don't get sub pixel anti aliasing on text, so we fill with white if
+ // we can.
+ var width = this.ctx.canvas.width;
+ var height = this.ctx.canvas.height;
+ if (transparency) {
+ this.ctx.clearRect(0, 0, width, height);
+ } else {
+ this.ctx.mozOpaque = true;
+ this.ctx.save();
+ this.ctx.fillStyle = 'rgb(255, 255, 255)';
+ this.ctx.fillRect(0, 0, width, height);
+ this.ctx.restore();
+ }
+
+ var transform = viewport.transform;
+
+ this.ctx.save();
+ this.ctx.transform.apply(this.ctx, transform);
+
+ this.baseTransform = this.ctx.mozCurrentTransform.slice();
+
+ if (this.imageLayer) {
+ this.imageLayer.beginLayout();
+ }
+ },
+
+ executeOperatorList: function CanvasGraphics_executeOperatorList(
+ operatorList,
+ executionStartIdx, continueCallback,
+ stepper) {
+ var argsArray = operatorList.argsArray;
+ var fnArray = operatorList.fnArray;
+ var i = executionStartIdx || 0;
+ var argsArrayLen = argsArray.length;
+
+ // Sometimes the OperatorList to execute is empty.
+ if (argsArrayLen === i) {
+ return i;
+ }
+
+ var chunkOperations = (argsArrayLen - i > EXECUTION_STEPS &&
+ typeof continueCallback === 'function');
+ var endTime = chunkOperations ? Date.now() + EXECUTION_TIME : 0;
+ var steps = 0;
+
+ var commonObjs = this.commonObjs;
+ var objs = this.objs;
+ var fnId;
+
+ while (true) {
+ if (stepper !== undefined && i === stepper.nextBreakPoint) {
+ stepper.breakIt(i, continueCallback);
+ return i;
+ }
+
+ fnId = fnArray[i];
+
+ if (fnId !== OPS.dependency) {
+ this[fnId].apply(this, argsArray[i]);
+ } else {
+ var deps = argsArray[i];
+ for (var n = 0, nn = deps.length; n < nn; n++) {
+ var depObjId = deps[n];
+ var common = depObjId[0] === 'g' && depObjId[1] === '_';
+ var objsPool = common ? commonObjs : objs;
+
+ // If the promise isn't resolved yet, add the continueCallback
+ // to the promise and bail out.
+ if (!objsPool.isResolved(depObjId)) {
+ objsPool.get(depObjId, continueCallback);
+ return i;
+ }
+ }
+ }
+
+ i++;
+
+ // If the entire operatorList was executed, stop as were done.
+ if (i === argsArrayLen) {
+ return i;
+ }
+
+ // If the execution took longer then a certain amount of time and
+ // `continueCallback` is specified, interrupt the execution.
+ if (chunkOperations && ++steps > EXECUTION_STEPS) {
+ if (Date.now() > endTime) {
+ continueCallback();
+ return i;
+ }
+ steps = 0;
+ }
+
+ // If the operatorList isn't executed completely yet OR the execution
+ // time was short enough, do another execution round.
+ }
+ },
+
+ endDrawing: function CanvasGraphics_endDrawing() {
+ this.ctx.restore();
+ CachedCanvases.clear();
+ WebGLUtils.clear();
+
+ if (this.imageLayer) {
+ this.imageLayer.endLayout();
+ }
+ },
+
+ // Graphics state
+ setLineWidth: function CanvasGraphics_setLineWidth(width) {
+ this.current.lineWidth = width;
+ this.ctx.lineWidth = width;
+ },
+ setLineCap: function CanvasGraphics_setLineCap(style) {
+ this.ctx.lineCap = LINE_CAP_STYLES[style];
+ },
+ setLineJoin: function CanvasGraphics_setLineJoin(style) {
+ this.ctx.lineJoin = LINE_JOIN_STYLES[style];
+ },
+ setMiterLimit: function CanvasGraphics_setMiterLimit(limit) {
+ this.ctx.miterLimit = limit;
+ },
+ setDash: function CanvasGraphics_setDash(dashArray, dashPhase) {
+ var ctx = this.ctx;
+ if (ctx.setLineDash !== undefined) {
+ ctx.setLineDash(dashArray);
+ ctx.lineDashOffset = dashPhase;
+ } else {
+ ctx.mozDash = dashArray;
+ ctx.mozDashOffset = dashPhase;
+ }
+ },
+ setRenderingIntent: function CanvasGraphics_setRenderingIntent(intent) {
+ // Maybe if we one day fully support color spaces this will be important
+ // for now we can ignore.
+ // TODO set rendering intent?
+ },
+ setFlatness: function CanvasGraphics_setFlatness(flatness) {
+ // There's no way to control this with canvas, but we can safely ignore.
+ // TODO set flatness?
+ },
+ setGState: function CanvasGraphics_setGState(states) {
+ for (var i = 0, ii = states.length; i < ii; i++) {
+ var state = states[i];
+ var key = state[0];
+ var value = state[1];
+
+ switch (key) {
+ case 'LW':
+ this.setLineWidth(value);
+ break;
+ case 'LC':
+ this.setLineCap(value);
+ break;
+ case 'LJ':
+ this.setLineJoin(value);
+ break;
+ case 'ML':
+ this.setMiterLimit(value);
+ break;
+ case 'D':
+ this.setDash(value[0], value[1]);
+ break;
+ case 'RI':
+ this.setRenderingIntent(value);
+ break;
+ case 'FL':
+ this.setFlatness(value);
+ break;
+ case 'Font':
+ this.setFont(value[0], value[1]);
+ break;
+ case 'CA':
+ this.current.strokeAlpha = state[1];
+ break;
+ case 'ca':
+ this.current.fillAlpha = state[1];
+ this.ctx.globalAlpha = state[1];
+ break;
+ case 'BM':
+ if (value && value.name && (value.name !== 'Normal')) {
+ var mode = value.name.replace(/([A-Z])/g,
+ function(c) {
+ return '-' + c.toLowerCase();
+ }
+ ).substring(1);
+ this.ctx.globalCompositeOperation = mode;
+ if (this.ctx.globalCompositeOperation !== mode) {
+ warn('globalCompositeOperation "' + mode +
+ '" is not supported');
+ }
+ } else {
+ this.ctx.globalCompositeOperation = 'source-over';
+ }
+ break;
+ case 'SMask':
+ if (this.current.activeSMask) {
+ this.endSMaskGroup();
+ }
+ this.current.activeSMask = value ? this.tempSMask : null;
+ if (this.current.activeSMask) {
+ this.beginSMaskGroup();
+ }
+ this.tempSMask = null;
+ break;
+ }
+ }
+ },
+ beginSMaskGroup: function CanvasGraphics_beginSMaskGroup() {
+
+ var activeSMask = this.current.activeSMask;
+ var drawnWidth = activeSMask.canvas.width;
+ var drawnHeight = activeSMask.canvas.height;
+ var cacheId = 'smaskGroupAt' + this.groupLevel;
+ var scratchCanvas = CachedCanvases.getCanvas(
+ cacheId, drawnWidth, drawnHeight, true);
+
+ var currentCtx = this.ctx;
+ var currentTransform = currentCtx.mozCurrentTransform;
+ this.ctx.save();
+
+ var groupCtx = scratchCanvas.context;
+ groupCtx.scale(1 / activeSMask.scaleX, 1 / activeSMask.scaleY);
+ groupCtx.translate(-activeSMask.offsetX, -activeSMask.offsetY);
+ groupCtx.transform.apply(groupCtx, currentTransform);
+
+ copyCtxState(currentCtx, groupCtx);
+ this.ctx = groupCtx;
+ this.setGState([
+ ['BM', 'Normal'],
+ ['ca', 1],
+ ['CA', 1]
+ ]);
+ this.groupStack.push(currentCtx);
+ this.groupLevel++;
+ },
+ endSMaskGroup: function CanvasGraphics_endSMaskGroup() {
+ var groupCtx = this.ctx;
+ this.groupLevel--;
+ this.ctx = this.groupStack.pop();
+
+ composeSMask(this.ctx, this.current.activeSMask, groupCtx);
+ this.ctx.restore();
+ },
+ save: function CanvasGraphics_save() {
+ this.ctx.save();
+ var old = this.current;
+ this.stateStack.push(old);
+ this.current = old.clone();
+ this.current.activeSMask = null;
+ },
+ restore: function CanvasGraphics_restore() {
+ if (this.stateStack.length !== 0) {
+ if (this.current.activeSMask !== null) {
+ this.endSMaskGroup();
+ }
+
+ this.current = this.stateStack.pop();
+ this.ctx.restore();
+
+ this.cachedGetSinglePixelWidth = null;
+ }
+ },
+ transform: function CanvasGraphics_transform(a, b, c, d, e, f) {
+ this.ctx.transform(a, b, c, d, e, f);
+
+ this.cachedGetSinglePixelWidth = null;
+ },
+
+ // Path
+ constructPath: function CanvasGraphics_constructPath(ops, args) {
+ var ctx = this.ctx;
+ var current = this.current;
+ var x = current.x, y = current.y;
+ for (var i = 0, j = 0, ii = ops.length; i < ii; i++) {
+ switch (ops[i] | 0) {
+ case OPS.rectangle:
+ x = args[j++];
+ y = args[j++];
+ var width = args[j++];
+ var height = args[j++];
+ if (width === 0) {
+ width = this.getSinglePixelWidth();
+ }
+ if (height === 0) {
+ height = this.getSinglePixelWidth();
+ }
+ var xw = x + width;
+ var yh = y + height;
+ this.ctx.moveTo(x, y);
+ this.ctx.lineTo(xw, y);
+ this.ctx.lineTo(xw, yh);
+ this.ctx.lineTo(x, yh);
+ this.ctx.lineTo(x, y);
+ this.ctx.closePath();
+ break;
+ case OPS.moveTo:
+ x = args[j++];
+ y = args[j++];
+ ctx.moveTo(x, y);
+ break;
+ case OPS.lineTo:
+ x = args[j++];
+ y = args[j++];
+ ctx.lineTo(x, y);
+ break;
+ case OPS.curveTo:
+ x = args[j + 4];
+ y = args[j + 5];
+ ctx.bezierCurveTo(args[j], args[j + 1], args[j + 2], args[j + 3],
+ x, y);
+ j += 6;
+ break;
+ case OPS.curveTo2:
+ ctx.bezierCurveTo(x, y, args[j], args[j + 1],
+ args[j + 2], args[j + 3]);
+ x = args[j + 2];
+ y = args[j + 3];
+ j += 4;
+ break;
+ case OPS.curveTo3:
+ x = args[j + 2];
+ y = args[j + 3];
+ ctx.bezierCurveTo(args[j], args[j + 1], x, y, x, y);
+ j += 4;
+ break;
+ case OPS.closePath:
+ ctx.closePath();
+ break;
+ }
+ }
+ current.setCurrentPoint(x, y);
+ },
+ closePath: function CanvasGraphics_closePath() {
+ this.ctx.closePath();
+ },
+ stroke: function CanvasGraphics_stroke(consumePath) {
+ consumePath = typeof consumePath !== 'undefined' ? consumePath : true;
+ var ctx = this.ctx;
+ var strokeColor = this.current.strokeColor;
+ // Prevent drawing too thin lines by enforcing a minimum line width.
+ ctx.lineWidth = Math.max(this.getSinglePixelWidth() * MIN_WIDTH_FACTOR,
+ this.current.lineWidth);
+ // For stroke we want to temporarily change the global alpha to the
+ // stroking alpha.
+ ctx.globalAlpha = this.current.strokeAlpha;
+ if (strokeColor && strokeColor.hasOwnProperty('type') &&
+ strokeColor.type === 'Pattern') {
+ // for patterns, we transform to pattern space, calculate
+ // the pattern, call stroke, and restore to user space
+ ctx.save();
+ ctx.strokeStyle = strokeColor.getPattern(ctx, this);
+ ctx.stroke();
+ ctx.restore();
+ } else {
+ ctx.stroke();
+ }
+ if (consumePath) {
+ this.consumePath();
+ }
+ // Restore the global alpha to the fill alpha
+ ctx.globalAlpha = this.current.fillAlpha;
+ },
+ closeStroke: function CanvasGraphics_closeStroke() {
+ this.closePath();
+ this.stroke();
+ },
+ fill: function CanvasGraphics_fill(consumePath) {
+ consumePath = typeof consumePath !== 'undefined' ? consumePath : true;
+ var ctx = this.ctx;
+ var fillColor = this.current.fillColor;
+ var isPatternFill = this.current.patternFill;
+ var needRestore = false;
+
+ if (isPatternFill) {
+ ctx.save();
+ ctx.fillStyle = fillColor.getPattern(ctx, this);
+ needRestore = true;
+ }
+
+ if (this.pendingEOFill) {
+ if (ctx.mozFillRule !== undefined) {
+ ctx.mozFillRule = 'evenodd';
+ ctx.fill();
+ ctx.mozFillRule = 'nonzero';
+ } else {
+ try {
+ ctx.fill('evenodd');
+ } catch (ex) {
+ // shouldn't really happen, but browsers might think differently
+ ctx.fill();
+ }
+ }
+ this.pendingEOFill = false;
+ } else {
+ ctx.fill();
+ }
+
+ if (needRestore) {
+ ctx.restore();
+ }
+ if (consumePath) {
+ this.consumePath();
+ }
+ },
+ eoFill: function CanvasGraphics_eoFill() {
+ this.pendingEOFill = true;
+ this.fill();
+ },
+ fillStroke: function CanvasGraphics_fillStroke() {
+ this.fill(false);
+ this.stroke(false);
+
+ this.consumePath();
+ },
+ eoFillStroke: function CanvasGraphics_eoFillStroke() {
+ this.pendingEOFill = true;
+ this.fillStroke();
+ },
+ closeFillStroke: function CanvasGraphics_closeFillStroke() {
+ this.closePath();
+ this.fillStroke();
+ },
+ closeEOFillStroke: function CanvasGraphics_closeEOFillStroke() {
+ this.pendingEOFill = true;
+ this.closePath();
+ this.fillStroke();
+ },
+ endPath: function CanvasGraphics_endPath() {
+ this.consumePath();
+ },
+
+ // Clipping
+ clip: function CanvasGraphics_clip() {
+ this.pendingClip = NORMAL_CLIP;
+ },
+ eoClip: function CanvasGraphics_eoClip() {
+ this.pendingClip = EO_CLIP;
+ },
+
+ // Text
+ beginText: function CanvasGraphics_beginText() {
+ this.current.textMatrix = IDENTITY_MATRIX;
+ this.current.textMatrixScale = 1;
+ this.current.x = this.current.lineX = 0;
+ this.current.y = this.current.lineY = 0;
+ },
+ endText: function CanvasGraphics_endText() {
+ var paths = this.pendingTextPaths;
+ var ctx = this.ctx;
+ if (paths === undefined) {
+ ctx.beginPath();
+ return;
+ }
+
+ ctx.save();
+ ctx.beginPath();
+ for (var i = 0; i < paths.length; i++) {
+ var path = paths[i];
+ ctx.setTransform.apply(ctx, path.transform);
+ ctx.translate(path.x, path.y);
+ path.addToPath(ctx, path.fontSize);
+ }
+ ctx.restore();
+ ctx.clip();
+ ctx.beginPath();
+ delete this.pendingTextPaths;
+ },
+ setCharSpacing: function CanvasGraphics_setCharSpacing(spacing) {
+ this.current.charSpacing = spacing;
+ },
+ setWordSpacing: function CanvasGraphics_setWordSpacing(spacing) {
+ this.current.wordSpacing = spacing;
+ },
+ setHScale: function CanvasGraphics_setHScale(scale) {
+ this.current.textHScale = scale / 100;
+ },
+ setLeading: function CanvasGraphics_setLeading(leading) {
+ this.current.leading = -leading;
+ },
+ setFont: function CanvasGraphics_setFont(fontRefName, size) {
+ var fontObj = this.commonObjs.get(fontRefName);
+ var current = this.current;
+
+ if (!fontObj) {
+ error('Can\'t find font for ' + fontRefName);
+ }
+
+ current.fontMatrix = (fontObj.fontMatrix ?
+ fontObj.fontMatrix : FONT_IDENTITY_MATRIX);
+
+ // A valid matrix needs all main diagonal elements to be non-zero
+ // This also ensures we bypass FF bugzilla bug #719844.
+ if (current.fontMatrix[0] === 0 ||
+ current.fontMatrix[3] === 0) {
+ warn('Invalid font matrix for font ' + fontRefName);
+ }
+
+ // The spec for Tf (setFont) says that 'size' specifies the font 'scale',
+ // and in some docs this can be negative (inverted x-y axes).
+ if (size < 0) {
+ size = -size;
+ current.fontDirection = -1;
+ } else {
+ current.fontDirection = 1;
+ }
+
+ this.current.font = fontObj;
+ this.current.fontSize = size;
+
+ if (fontObj.isType3Font) {
+ return; // we don't need ctx.font for Type3 fonts
+ }
+
+ var name = fontObj.loadedName || 'sans-serif';
+ var bold = fontObj.black ? (fontObj.bold ? 'bolder' : 'bold') :
+ (fontObj.bold ? 'bold' : 'normal');
+
+ var italic = fontObj.italic ? 'italic' : 'normal';
+ var typeface = '"' + name + '", ' + fontObj.fallbackName;
+
+ // Some font backends cannot handle fonts below certain size.
+ // Keeping the font at minimal size and using the fontSizeScale to change
+ // the current transformation matrix before the fillText/strokeText.
+ // See https://bugzilla.mozilla.org/show_bug.cgi?id=726227
+ var browserFontSize = size < MIN_FONT_SIZE ? MIN_FONT_SIZE :
+ size > MAX_FONT_SIZE ? MAX_FONT_SIZE : size;
+ this.current.fontSizeScale = size / browserFontSize;
+
+ var rule = italic + ' ' + bold + ' ' + browserFontSize + 'px ' + typeface;
+ this.ctx.font = rule;
+ },
+ setTextRenderingMode: function CanvasGraphics_setTextRenderingMode(mode) {
+ this.current.textRenderingMode = mode;
+ },
+ setTextRise: function CanvasGraphics_setTextRise(rise) {
+ this.current.textRise = rise;
+ },
+ moveText: function CanvasGraphics_moveText(x, y) {
+ this.current.x = this.current.lineX += x;
+ this.current.y = this.current.lineY += y;
+ },
+ setLeadingMoveText: function CanvasGraphics_setLeadingMoveText(x, y) {
+ this.setLeading(-y);
+ this.moveText(x, y);
+ },
+ setTextMatrix: function CanvasGraphics_setTextMatrix(a, b, c, d, e, f) {
+ this.current.textMatrix = [a, b, c, d, e, f];
+ this.current.textMatrixScale = Math.sqrt(a * a + b * b);
+
+ this.current.x = this.current.lineX = 0;
+ this.current.y = this.current.lineY = 0;
+ },
+ nextLine: function CanvasGraphics_nextLine() {
+ this.moveText(0, this.current.leading);
+ },
+
+ paintChar: function CanvasGraphics_paintChar(character, x, y) {
+ var ctx = this.ctx;
+ var current = this.current;
+ var font = current.font;
+ var textRenderingMode = current.textRenderingMode;
+ var fontSize = current.fontSize / current.fontSizeScale;
+ var fillStrokeMode = textRenderingMode &
+ TextRenderingMode.FILL_STROKE_MASK;
+ var isAddToPathSet = !!(textRenderingMode &
+ TextRenderingMode.ADD_TO_PATH_FLAG);
+
+ var addToPath;
+ if (font.disableFontFace || isAddToPathSet) {
+ addToPath = font.getPathGenerator(this.commonObjs, character);
+ }
+
+ if (font.disableFontFace) {
+ ctx.save();
+ ctx.translate(x, y);
+ ctx.beginPath();
+ addToPath(ctx, fontSize);
+ if (fillStrokeMode === TextRenderingMode.FILL ||
+ fillStrokeMode === TextRenderingMode.FILL_STROKE) {
+ ctx.fill();
+ }
+ if (fillStrokeMode === TextRenderingMode.STROKE ||
+ fillStrokeMode === TextRenderingMode.FILL_STROKE) {
+ ctx.stroke();
+ }
+ ctx.restore();
+ } else {
+ if (fillStrokeMode === TextRenderingMode.FILL ||
+ fillStrokeMode === TextRenderingMode.FILL_STROKE) {
+ ctx.fillText(character, x, y);
+ }
+ if (fillStrokeMode === TextRenderingMode.STROKE ||
+ fillStrokeMode === TextRenderingMode.FILL_STROKE) {
+ ctx.strokeText(character, x, y);
+ }
+ }
+
+ if (isAddToPathSet) {
+ var paths = this.pendingTextPaths || (this.pendingTextPaths = []);
+ paths.push({
+ transform: ctx.mozCurrentTransform,
+ x: x,
+ y: y,
+ fontSize: fontSize,
+ addToPath: addToPath
+ });
+ }
+ },
+
+ get isFontSubpixelAAEnabled() {
+ // Checks if anti-aliasing is enabled when scaled text is painted.
+ // On Windows GDI scaled fonts looks bad.
+ var ctx = document.createElement('canvas').getContext('2d');
+ ctx.scale(1.5, 1);
+ ctx.fillText('I', 0, 10);
+ var data = ctx.getImageData(0, 0, 10, 10).data;
+ var enabled = false;
+ for (var i = 3; i < data.length; i += 4) {
+ if (data[i] > 0 && data[i] < 255) {
+ enabled = true;
+ break;
+ }
+ }
+ return shadow(this, 'isFontSubpixelAAEnabled', enabled);
+ },
+
+ showText: function CanvasGraphics_showText(glyphs) {
+ var current = this.current;
+ var font = current.font;
+ if (font.isType3Font) {
+ return this.showType3Text(glyphs);
+ }
+
+ var fontSize = current.fontSize;
+ if (fontSize === 0) {
+ return;
+ }
+
+ var ctx = this.ctx;
+ var fontSizeScale = current.fontSizeScale;
+ var charSpacing = current.charSpacing;
+ var wordSpacing = current.wordSpacing;
+ var fontDirection = current.fontDirection;
+ var textHScale = current.textHScale * fontDirection;
+ var glyphsLength = glyphs.length;
+ var vertical = font.vertical;
+ var defaultVMetrics = font.defaultVMetrics;
+ var widthAdvanceScale = fontSize * current.fontMatrix[0];
+
+ var simpleFillText =
+ current.textRenderingMode === TextRenderingMode.FILL &&
+ !font.disableFontFace;
+
+ ctx.save();
+ ctx.transform.apply(ctx, current.textMatrix);
+ ctx.translate(current.x, current.y + current.textRise);
+
+ if (fontDirection > 0) {
+ ctx.scale(textHScale, -1);
+ } else {
+ ctx.scale(textHScale, 1);
+ }
+
+ var lineWidth = current.lineWidth;
+ var scale = current.textMatrixScale;
+ if (scale === 0 || lineWidth === 0) {
+ var fillStrokeMode = current.textRenderingMode &
+ TextRenderingMode.FILL_STROKE_MASK;
+ if (fillStrokeMode === TextRenderingMode.STROKE ||
+ fillStrokeMode === TextRenderingMode.FILL_STROKE) {
+ this.cachedGetSinglePixelWidth = null;
+ lineWidth = this.getSinglePixelWidth() * MIN_WIDTH_FACTOR;
+ }
+ } else {
+ lineWidth /= scale;
+ }
+
+ if (fontSizeScale !== 1.0) {
+ ctx.scale(fontSizeScale, fontSizeScale);
+ lineWidth /= fontSizeScale;
+ }
+
+ ctx.lineWidth = lineWidth;
+
+ var x = 0, i;
+ for (i = 0; i < glyphsLength; ++i) {
+ var glyph = glyphs[i];
+ if (glyph === null) {
+ // word break
+ x += fontDirection * wordSpacing;
+ continue;
+ } else if (isNum(glyph)) {
+ x += -glyph * fontSize * 0.001;
+ continue;
+ }
+
+ var restoreNeeded = false;
+ var character = glyph.fontChar;
+ var accent = glyph.accent;
+ var scaledX, scaledY, scaledAccentX, scaledAccentY;
+ var width = glyph.width;
+ if (vertical) {
+ var vmetric, vx, vy;
+ vmetric = glyph.vmetric || defaultVMetrics;
+ vx = glyph.vmetric ? vmetric[1] : width * 0.5;
+ vx = -vx * widthAdvanceScale;
+ vy = vmetric[2] * widthAdvanceScale;
+
+ width = vmetric ? -vmetric[0] : width;
+ scaledX = vx / fontSizeScale;
+ scaledY = (x + vy) / fontSizeScale;
+ } else {
+ scaledX = x / fontSizeScale;
+ scaledY = 0;
+ }
+
+ if (font.remeasure && width > 0 && this.isFontSubpixelAAEnabled) {
+ // some standard fonts may not have the exact width, trying to
+ // rescale per character
+ var measuredWidth = ctx.measureText(character).width * 1000 /
+ fontSize * fontSizeScale;
+ var characterScaleX = width / measuredWidth;
+ restoreNeeded = true;
+ ctx.save();
+ ctx.scale(characterScaleX, 1);
+ scaledX /= characterScaleX;
+ }
+
+ if (simpleFillText && !accent) {
+ // common case
+ ctx.fillText(character, scaledX, scaledY);
+ } else {
+ this.paintChar(character, scaledX, scaledY);
+ if (accent) {
+ scaledAccentX = scaledX + accent.offset.x / fontSizeScale;
+ scaledAccentY = scaledY - accent.offset.y / fontSizeScale;
+ this.paintChar(accent.fontChar, scaledAccentX, scaledAccentY);
+ }
+ }
+
+ var charWidth = width * widthAdvanceScale + charSpacing * fontDirection;
+ x += charWidth;
+
+ if (restoreNeeded) {
+ ctx.restore();
+ }
+ }
+ if (vertical) {
+ current.y -= x * textHScale;
+ } else {
+ current.x += x * textHScale;
+ }
+ ctx.restore();
+ },
+
+ showType3Text: function CanvasGraphics_showType3Text(glyphs) {
+ // Type3 fonts - each glyph is a "mini-PDF"
+ var ctx = this.ctx;
+ var current = this.current;
+ var font = current.font;
+ var fontSize = current.fontSize;
+ var fontDirection = current.fontDirection;
+ var charSpacing = current.charSpacing;
+ var wordSpacing = current.wordSpacing;
+ var textHScale = current.textHScale * fontDirection;
+ var fontMatrix = current.fontMatrix || FONT_IDENTITY_MATRIX;
+ var glyphsLength = glyphs.length;
+ var isTextInvisible =
+ current.textRenderingMode === TextRenderingMode.INVISIBLE;
+ var i, glyph, width;
+
+ if (isTextInvisible || fontSize === 0) {
+ return;
+ }
+
+ ctx.save();
+ ctx.transform.apply(ctx, current.textMatrix);
+ ctx.translate(current.x, current.y);
+
+ ctx.scale(textHScale, fontDirection);
+
+ for (i = 0; i < glyphsLength; ++i) {
+ glyph = glyphs[i];
+ if (glyph === null) {
+ // word break
+ this.ctx.translate(wordSpacing, 0);
+ current.x += wordSpacing * textHScale;
+ continue;
+ } else if (isNum(glyph)) {
+ var spacingLength = -glyph * 0.001 * fontSize;
+ this.ctx.translate(spacingLength, 0);
+ current.x += spacingLength * textHScale;
+ continue;
+ }
+
+ var operatorList = font.charProcOperatorList[glyph.operatorListId];
+ if (!operatorList) {
+ warn('Type3 character \"' + glyph.operatorListId +
+ '\" is not available');
+ continue;
+ }
+ this.processingType3 = glyph;
+ this.save();
+ ctx.scale(fontSize, fontSize);
+ ctx.transform.apply(ctx, fontMatrix);
+ this.executeOperatorList(operatorList);
+ this.restore();
+
+ var transformed = Util.applyTransform([glyph.width, 0], fontMatrix);
+ width = transformed[0] * fontSize + charSpacing;
+
+ ctx.translate(width, 0);
+ current.x += width * textHScale;
+ }
+ ctx.restore();
+ this.processingType3 = null;
+ },
+
+ // Type3 fonts
+ setCharWidth: function CanvasGraphics_setCharWidth(xWidth, yWidth) {
+ // We can safely ignore this since the width should be the same
+ // as the width in the Widths array.
+ },
+ setCharWidthAndBounds: function CanvasGraphics_setCharWidthAndBounds(xWidth,
+ yWidth,
+ llx,
+ lly,
+ urx,
+ ury) {
+ // TODO According to the spec we're also suppose to ignore any operators
+ // that set color or include images while processing this type3 font.
+ this.ctx.rect(llx, lly, urx - llx, ury - lly);
+ this.clip();
+ this.endPath();
+ },
+
+ // Color
+ getColorN_Pattern: function CanvasGraphics_getColorN_Pattern(IR) {
+ var pattern;
+ if (IR[0] === 'TilingPattern') {
+ var color = IR[1];
+ pattern = new TilingPattern(IR, color, this.ctx, this.objs,
+ this.commonObjs, this.baseTransform);
+ } else {
+ pattern = getShadingPatternFromIR(IR);
+ }
+ return pattern;
+ },
+ setStrokeColorN: function CanvasGraphics_setStrokeColorN(/*...*/) {
+ this.current.strokeColor = this.getColorN_Pattern(arguments);
+ },
+ setFillColorN: function CanvasGraphics_setFillColorN(/*...*/) {
+ this.current.fillColor = this.getColorN_Pattern(arguments);
+ this.current.patternFill = true;
+ },
+ setStrokeRGBColor: function CanvasGraphics_setStrokeRGBColor(r, g, b) {
+ var color = Util.makeCssRgb(r, g, b);
+ this.ctx.strokeStyle = color;
+ this.current.strokeColor = color;
+ },
+ setFillRGBColor: function CanvasGraphics_setFillRGBColor(r, g, b) {
+ var color = Util.makeCssRgb(r, g, b);
+ this.ctx.fillStyle = color;
+ this.current.fillColor = color;
+ this.current.patternFill = false;
+ },
+
+ shadingFill: function CanvasGraphics_shadingFill(patternIR) {
+ var ctx = this.ctx;
+
+ this.save();
+ var pattern = getShadingPatternFromIR(patternIR);
+ ctx.fillStyle = pattern.getPattern(ctx, this, true);
+
+ var inv = ctx.mozCurrentTransformInverse;
+ if (inv) {
+ var canvas = ctx.canvas;
+ var width = canvas.width;
+ var height = canvas.height;
+
+ var bl = Util.applyTransform([0, 0], inv);
+ var br = Util.applyTransform([0, height], inv);
+ var ul = Util.applyTransform([width, 0], inv);
+ var ur = Util.applyTransform([width, height], inv);
+
+ var x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
+ var y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
+ var x1 = Math.max(bl[0], br[0], ul[0], ur[0]);
+ var y1 = Math.max(bl[1], br[1], ul[1], ur[1]);
+
+ this.ctx.fillRect(x0, y0, x1 - x0, y1 - y0);
+ } else {
+ // HACK to draw the gradient onto an infinite rectangle.
+ // PDF gradients are drawn across the entire image while
+ // Canvas only allows gradients to be drawn in a rectangle
+ // The following bug should allow us to remove this.
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=664884
+
+ this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10);
+ }
+
+ this.restore();
+ },
+
+ // Images
+ beginInlineImage: function CanvasGraphics_beginInlineImage() {
+ error('Should not call beginInlineImage');
+ },
+ beginImageData: function CanvasGraphics_beginImageData() {
+ error('Should not call beginImageData');
+ },
+
+ paintFormXObjectBegin: function CanvasGraphics_paintFormXObjectBegin(matrix,
+ bbox) {
+ this.save();
+ this.baseTransformStack.push(this.baseTransform);
+
+ if (isArray(matrix) && 6 === matrix.length) {
+ this.transform.apply(this, matrix);
+ }
+
+ this.baseTransform = this.ctx.mozCurrentTransform;
+
+ if (isArray(bbox) && 4 === bbox.length) {
+ var width = bbox[2] - bbox[0];
+ var height = bbox[3] - bbox[1];
+ this.ctx.rect(bbox[0], bbox[1], width, height);
+ this.clip();
+ this.endPath();
+ }
+ },
+
+ paintFormXObjectEnd: function CanvasGraphics_paintFormXObjectEnd() {
+ this.restore();
+ this.baseTransform = this.baseTransformStack.pop();
+ },
+
+ beginGroup: function CanvasGraphics_beginGroup(group) {
+ this.save();
+ var currentCtx = this.ctx;
+ // TODO non-isolated groups - according to Rik at adobe non-isolated
+ // group results aren't usually that different and they even have tools
+ // that ignore this setting. Notes from Rik on implmenting:
+ // - When you encounter an transparency group, create a new canvas with
+ // the dimensions of the bbox
+ // - copy the content from the previous canvas to the new canvas
+ // - draw as usual
+ // - remove the backdrop alpha:
+ // alphaNew = 1 - (1 - alpha)/(1 - alphaBackdrop) with 'alpha' the alpha
+ // value of your transparency group and 'alphaBackdrop' the alpha of the
+ // backdrop
+ // - remove background color:
+ // colorNew = color - alphaNew *colorBackdrop /(1 - alphaNew)
+ if (!group.isolated) {
+ info('TODO: Support non-isolated groups.');
+ }
+
+ // TODO knockout - supposedly possible with the clever use of compositing
+ // modes.
+ if (group.knockout) {
+ warn('Knockout groups not supported.');
+ }
+
+ var currentTransform = currentCtx.mozCurrentTransform;
+ if (group.matrix) {
+ currentCtx.transform.apply(currentCtx, group.matrix);
+ }
+ assert(group.bbox, 'Bounding box is required.');
+
+ // Based on the current transform figure out how big the bounding box
+ // will actually be.
+ var bounds = Util.getAxialAlignedBoundingBox(
+ group.bbox,
+ currentCtx.mozCurrentTransform);
+ // Clip the bounding box to the current canvas.
+ var canvasBounds = [0,
+ 0,
+ currentCtx.canvas.width,
+ currentCtx.canvas.height];
+ bounds = Util.intersect(bounds, canvasBounds) || [0, 0, 0, 0];
+ // Use ceil in case we're between sizes so we don't create canvas that is
+ // too small and make the canvas at least 1x1 pixels.
+ var offsetX = Math.floor(bounds[0]);
+ var offsetY = Math.floor(bounds[1]);
+ var drawnWidth = Math.max(Math.ceil(bounds[2]) - offsetX, 1);
+ var drawnHeight = Math.max(Math.ceil(bounds[3]) - offsetY, 1);
+ var scaleX = 1, scaleY = 1;
+ if (drawnWidth > MAX_GROUP_SIZE) {
+ scaleX = drawnWidth / MAX_GROUP_SIZE;
+ drawnWidth = MAX_GROUP_SIZE;
+ }
+ if (drawnHeight > MAX_GROUP_SIZE) {
+ scaleY = drawnHeight / MAX_GROUP_SIZE;
+ drawnHeight = MAX_GROUP_SIZE;
+ }
+
+ var cacheId = 'groupAt' + this.groupLevel;
+ if (group.smask) {
+ // Using two cache entries is case if masks are used one after another.
+ cacheId += '_smask_' + ((this.smaskCounter++) % 2);
+ }
+ var scratchCanvas = CachedCanvases.getCanvas(
+ cacheId, drawnWidth, drawnHeight, true);
+ var groupCtx = scratchCanvas.context;
+
+ // Since we created a new canvas that is just the size of the bounding box
+ // we have to translate the group ctx.
+ groupCtx.scale(1 / scaleX, 1 / scaleY);
+ groupCtx.translate(-offsetX, -offsetY);
+ groupCtx.transform.apply(groupCtx, currentTransform);
+
+ if (group.smask) {
+ // Saving state and cached mask to be used in setGState.
+ this.smaskStack.push({
+ canvas: scratchCanvas.canvas,
+ context: groupCtx,
+ offsetX: offsetX,
+ offsetY: offsetY,
+ scaleX: scaleX,
+ scaleY: scaleY,
+ subtype: group.smask.subtype,
+ backdrop: group.smask.backdrop
+ });
+ } else {
+ // Setup the current ctx so when the group is popped we draw it at the
+ // right location.
+ currentCtx.setTransform(1, 0, 0, 1, 0, 0);
+ currentCtx.translate(offsetX, offsetY);
+ currentCtx.scale(scaleX, scaleY);
+ }
+ // The transparency group inherits all off the current graphics state
+ // except the blend mode, soft mask, and alpha constants.
+ copyCtxState(currentCtx, groupCtx);
+ this.ctx = groupCtx;
+ this.setGState([
+ ['BM', 'Normal'],
+ ['ca', 1],
+ ['CA', 1]
+ ]);
+ this.groupStack.push(currentCtx);
+ this.groupLevel++;
+ },
+
+ endGroup: function CanvasGraphics_endGroup(group) {
+ this.groupLevel--;
+ var groupCtx = this.ctx;
+ this.ctx = this.groupStack.pop();
+ // Turn off image smoothing to avoid sub pixel interpolation which can
+ // look kind of blurry for some pdfs.
+ if (this.ctx.imageSmoothingEnabled !== undefined) {
+ this.ctx.imageSmoothingEnabled = false;
+ } else {
+ this.ctx.mozImageSmoothingEnabled = false;
+ }
+ if (group.smask) {
+ this.tempSMask = this.smaskStack.pop();
+ } else {
+ this.ctx.drawImage(groupCtx.canvas, 0, 0);
+ }
+ this.restore();
+ },
+
+ beginAnnotations: function CanvasGraphics_beginAnnotations() {
+ this.save();
+ this.current = new CanvasExtraState();
+ },
+
+ endAnnotations: function CanvasGraphics_endAnnotations() {
+ this.restore();
+ },
+
+ beginAnnotation: function CanvasGraphics_beginAnnotation(rect, transform,
+ matrix) {
+ this.save();
+
+ if (isArray(rect) && 4 === rect.length) {
+ var width = rect[2] - rect[0];
+ var height = rect[3] - rect[1];
+ this.ctx.rect(rect[0], rect[1], width, height);
+ this.clip();
+ this.endPath();
+ }
+
+ this.transform.apply(this, transform);
+ this.transform.apply(this, matrix);
+ },
+
+ endAnnotation: function CanvasGraphics_endAnnotation() {
+ this.restore();
+ },
+
+ paintJpegXObject: function CanvasGraphics_paintJpegXObject(objId, w, h) {
+ var domImage = this.objs.get(objId);
+ if (!domImage) {
+ warn('Dependent image isn\'t ready yet');
+ return;
+ }
+
+ this.save();
+
+ var ctx = this.ctx;
+ // scale the image to the unit square
+ ctx.scale(1 / w, -1 / h);
+
+ ctx.drawImage(domImage, 0, 0, domImage.width, domImage.height,
+ 0, -h, w, h);
+ if (this.imageLayer) {
+ var currentTransform = ctx.mozCurrentTransformInverse;
+ var position = this.getCanvasPosition(0, 0);
+ this.imageLayer.appendImage({
+ objId: objId,
+ left: position[0],
+ top: position[1],
+ width: w / currentTransform[0],
+ height: h / currentTransform[3]
+ });
+ }
+ this.restore();
+ },
+
+ paintImageMaskXObject: function CanvasGraphics_paintImageMaskXObject(img) {
+ var ctx = this.ctx;
+ var width = img.width, height = img.height;
+ var fillColor = this.current.fillColor;
+ var isPatternFill = this.current.patternFill;
+
+ var glyph = this.processingType3;
+
+ if (COMPILE_TYPE3_GLYPHS && glyph && glyph.compiled === undefined) {
+ if (width <= MAX_SIZE_TO_COMPILE && height <= MAX_SIZE_TO_COMPILE) {
+ glyph.compiled =
+ compileType3Glyph({data: img.data, width: width, height: height});
+ } else {
+ glyph.compiled = null;
+ }
+ }
+
+ if (glyph && glyph.compiled) {
+ glyph.compiled(ctx);
+ return;
+ }
+
+ var maskCanvas = CachedCanvases.getCanvas('maskCanvas', width, height);
+ var maskCtx = maskCanvas.context;
+ maskCtx.save();
+
+ putBinaryImageMask(maskCtx, img);
+
+ maskCtx.globalCompositeOperation = 'source-in';
+
+ maskCtx.fillStyle = isPatternFill ?
+ fillColor.getPattern(maskCtx, this) : fillColor;
+ maskCtx.fillRect(0, 0, width, height);
+
+ maskCtx.restore();
+
+ this.paintInlineImageXObject(maskCanvas.canvas);
+ },
+
+ paintImageMaskXObjectRepeat:
+ function CanvasGraphics_paintImageMaskXObjectRepeat(imgData, scaleX,
+ scaleY, positions) {
+ var width = imgData.width;
+ var height = imgData.height;
+ var fillColor = this.current.fillColor;
+ var isPatternFill = this.current.patternFill;
+
+ var maskCanvas = CachedCanvases.getCanvas('maskCanvas', width, height);
+ var maskCtx = maskCanvas.context;
+ maskCtx.save();
+
+ putBinaryImageMask(maskCtx, imgData);
+
+ maskCtx.globalCompositeOperation = 'source-in';
+
+ maskCtx.fillStyle = isPatternFill ?
+ fillColor.getPattern(maskCtx, this) : fillColor;
+ maskCtx.fillRect(0, 0, width, height);
+
+ maskCtx.restore();
+
+ var ctx = this.ctx;
+ for (var i = 0, ii = positions.length; i < ii; i += 2) {
+ ctx.save();
+ ctx.transform(scaleX, 0, 0, scaleY, positions[i], positions[i + 1]);
+ ctx.scale(1, -1);
+ ctx.drawImage(maskCanvas.canvas, 0, 0, width, height,
+ 0, -1, 1, 1);
+ ctx.restore();
+ }
+ },
+
+ paintImageMaskXObjectGroup:
+ function CanvasGraphics_paintImageMaskXObjectGroup(images) {
+ var ctx = this.ctx;
+
+ var fillColor = this.current.fillColor;
+ var isPatternFill = this.current.patternFill;
+ for (var i = 0, ii = images.length; i < ii; i++) {
+ var image = images[i];
+ var width = image.width, height = image.height;
+
+ var maskCanvas = CachedCanvases.getCanvas('maskCanvas', width, height);
+ var maskCtx = maskCanvas.context;
+ maskCtx.save();
+
+ putBinaryImageMask(maskCtx, image);
+
+ maskCtx.globalCompositeOperation = 'source-in';
+
+ maskCtx.fillStyle = isPatternFill ?
+ fillColor.getPattern(maskCtx, this) : fillColor;
+ maskCtx.fillRect(0, 0, width, height);
+
+ maskCtx.restore();
+
+ ctx.save();
+ ctx.transform.apply(ctx, image.transform);
+ ctx.scale(1, -1);
+ ctx.drawImage(maskCanvas.canvas, 0, 0, width, height,
+ 0, -1, 1, 1);
+ ctx.restore();
+ }
+ },
+
+ paintImageXObject: function CanvasGraphics_paintImageXObject(objId) {
+ var imgData = this.objs.get(objId);
+ if (!imgData) {
+ warn('Dependent image isn\'t ready yet');
+ return;
+ }
+
+ this.paintInlineImageXObject(imgData);
+ },
+
+ paintImageXObjectRepeat:
+ function CanvasGraphics_paintImageXObjectRepeat(objId, scaleX, scaleY,
+ positions) {
+ var imgData = this.objs.get(objId);
+ if (!imgData) {
+ warn('Dependent image isn\'t ready yet');
+ return;
+ }
+
+ var width = imgData.width;
+ var height = imgData.height;
+ var map = [];
+ for (var i = 0, ii = positions.length; i < ii; i += 2) {
+ map.push({transform: [scaleX, 0, 0, scaleY, positions[i],
+ positions[i + 1]], x: 0, y: 0, w: width, h: height});
+ }
+ this.paintInlineImageXObjectGroup(imgData, map);
+ },
+
+ paintInlineImageXObject:
+ function CanvasGraphics_paintInlineImageXObject(imgData) {
+ var width = imgData.width;
+ var height = imgData.height;
+ var ctx = this.ctx;
+
+ this.save();
+ // scale the image to the unit square
+ ctx.scale(1 / width, -1 / height);
+
+ var currentTransform = ctx.mozCurrentTransformInverse;
+ var a = currentTransform[0], b = currentTransform[1];
+ var widthScale = Math.max(Math.sqrt(a * a + b * b), 1);
+ var c = currentTransform[2], d = currentTransform[3];
+ var heightScale = Math.max(Math.sqrt(c * c + d * d), 1);
+
+ var imgToPaint, tmpCanvas;
+ // instanceof HTMLElement does not work in jsdom node.js module
+ if (imgData instanceof HTMLElement || !imgData.data) {
+ imgToPaint = imgData;
+ } else {
+ tmpCanvas = CachedCanvases.getCanvas('inlineImage', width, height);
+ var tmpCtx = tmpCanvas.context;
+ putBinaryImageData(tmpCtx, imgData);
+ imgToPaint = tmpCanvas.canvas;
+ }
+
+ var paintWidth = width, paintHeight = height;
+ var tmpCanvasId = 'prescale1';
+ // Vertial or horizontal scaling shall not be more than 2 to not loose the
+ // pixels during drawImage operation, painting on the temporary canvas(es)
+ // that are twice smaller in size
+ while ((widthScale > 2 && paintWidth > 1) ||
+ (heightScale > 2 && paintHeight > 1)) {
+ var newWidth = paintWidth, newHeight = paintHeight;
+ if (widthScale > 2 && paintWidth > 1) {
+ newWidth = Math.ceil(paintWidth / 2);
+ widthScale /= paintWidth / newWidth;
+ }
+ if (heightScale > 2 && paintHeight > 1) {
+ newHeight = Math.ceil(paintHeight / 2);
+ heightScale /= paintHeight / newHeight;
+ }
+ tmpCanvas = CachedCanvases.getCanvas(tmpCanvasId, newWidth, newHeight);
+ tmpCtx = tmpCanvas.context;
+ tmpCtx.clearRect(0, 0, newWidth, newHeight);
+ tmpCtx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight,
+ 0, 0, newWidth, newHeight);
+ imgToPaint = tmpCanvas.canvas;
+ paintWidth = newWidth;
+ paintHeight = newHeight;
+ tmpCanvasId = tmpCanvasId === 'prescale1' ? 'prescale2' : 'prescale1';
+ }
+ ctx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight,
+ 0, -height, width, height);
+
+ if (this.imageLayer) {
+ var position = this.getCanvasPosition(0, -height);
+ this.imageLayer.appendImage({
+ imgData: imgData,
+ left: position[0],
+ top: position[1],
+ width: width / currentTransform[0],
+ height: height / currentTransform[3]
+ });
+ }
+ this.restore();
+ },
+
+ paintInlineImageXObjectGroup:
+ function CanvasGraphics_paintInlineImageXObjectGroup(imgData, map) {
+ var ctx = this.ctx;
+ var w = imgData.width;
+ var h = imgData.height;
+
+ var tmpCanvas = CachedCanvases.getCanvas('inlineImage', w, h);
+ var tmpCtx = tmpCanvas.context;
+ putBinaryImageData(tmpCtx, imgData);
+
+ for (var i = 0, ii = map.length; i < ii; i++) {
+ var entry = map[i];
+ ctx.save();
+ ctx.transform.apply(ctx, entry.transform);
+ ctx.scale(1, -1);
+ ctx.drawImage(tmpCanvas.canvas, entry.x, entry.y, entry.w, entry.h,
+ 0, -1, 1, 1);
+ if (this.imageLayer) {
+ var position = this.getCanvasPosition(entry.x, entry.y);
+ this.imageLayer.appendImage({
+ imgData: imgData,
+ left: position[0],
+ top: position[1],
+ width: w,
+ height: h
+ });
+ }
+ ctx.restore();
+ }
+ },
+
+ paintSolidColorImageMask:
+ function CanvasGraphics_paintSolidColorImageMask() {
+ this.ctx.fillRect(0, 0, 1, 1);
+ },
+
+ // Marked content
+
+ markPoint: function CanvasGraphics_markPoint(tag) {
+ // TODO Marked content.
+ },
+ markPointProps: function CanvasGraphics_markPointProps(tag, properties) {
+ // TODO Marked content.
+ },
+ beginMarkedContent: function CanvasGraphics_beginMarkedContent(tag) {
+ // TODO Marked content.
+ },
+ beginMarkedContentProps: function CanvasGraphics_beginMarkedContentProps(
+ tag, properties) {
+ // TODO Marked content.
+ },
+ endMarkedContent: function CanvasGraphics_endMarkedContent() {
+ // TODO Marked content.
+ },
+
+ // Compatibility
+
+ beginCompat: function CanvasGraphics_beginCompat() {
+ // TODO ignore undefined operators (should we do that anyway?)
+ },
+ endCompat: function CanvasGraphics_endCompat() {
+ // TODO stop ignoring undefined operators
+ },
+
+ // Helper functions
+
+ consumePath: function CanvasGraphics_consumePath() {
+ var ctx = this.ctx;
+ if (this.pendingClip) {
+ if (this.pendingClip === EO_CLIP) {
+ if (ctx.mozFillRule !== undefined) {
+ ctx.mozFillRule = 'evenodd';
+ ctx.clip();
+ ctx.mozFillRule = 'nonzero';
+ } else {
+ try {
+ ctx.clip('evenodd');
+ } catch (ex) {
+ // shouldn't really happen, but browsers might think differently
+ ctx.clip();
+ }
+ }
+ } else {
+ ctx.clip();
+ }
+ this.pendingClip = null;
+ }
+ ctx.beginPath();
+ },
+ getSinglePixelWidth: function CanvasGraphics_getSinglePixelWidth(scale) {
+ if (this.cachedGetSinglePixelWidth === null) {
+ var inverse = this.ctx.mozCurrentTransformInverse;
+ // max of the current horizontal and vertical scale
+ this.cachedGetSinglePixelWidth = Math.sqrt(Math.max(
+ (inverse[0] * inverse[0] + inverse[1] * inverse[1]),
+ (inverse[2] * inverse[2] + inverse[3] * inverse[3])));
+ }
+ return this.cachedGetSinglePixelWidth;
+ },
+ getCanvasPosition: function CanvasGraphics_getCanvasPosition(x, y) {
+ var transform = this.ctx.mozCurrentTransform;
+ return [
+ transform[0] * x + transform[2] * y + transform[4],
+ transform[1] * x + transform[3] * y + transform[5]
+ ];
+ }
+ };
+
+ for (var op in OPS) {
+ CanvasGraphics.prototype[OPS[op]] = CanvasGraphics.prototype[op];
+ }
+
+ return CanvasGraphics;
+})();
+
+
+var WebGLUtils = (function WebGLUtilsClosure() {
+ function loadShader(gl, code, shaderType) {
+ var shader = gl.createShader(shaderType);
+ gl.shaderSource(shader, code);
+ gl.compileShader(shader);
+ var compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
+ if (!compiled) {
+ var errorMsg = gl.getShaderInfoLog(shader);
+ throw new Error('Error during shader compilation: ' + errorMsg);
+ }
+ return shader;
+ }
+ function createVertexShader(gl, code) {
+ return loadShader(gl, code, gl.VERTEX_SHADER);
+ }
+ function createFragmentShader(gl, code) {
+ return loadShader(gl, code, gl.FRAGMENT_SHADER);
+ }
+ function createProgram(gl, shaders) {
+ var program = gl.createProgram();
+ for (var i = 0, ii = shaders.length; i < ii; ++i) {
+ gl.attachShader(program, shaders[i]);
+ }
+ gl.linkProgram(program);
+ var linked = gl.getProgramParameter(program, gl.LINK_STATUS);
+ if (!linked) {
+ var errorMsg = gl.getProgramInfoLog(program);
+ throw new Error('Error during program linking: ' + errorMsg);
+ }
+ return program;
+ }
+ function createTexture(gl, image, textureId) {
+ gl.activeTexture(textureId);
+ var texture = gl.createTexture();
+ gl.bindTexture(gl.TEXTURE_2D, texture);
+
+ // Set the parameters so we can render any size image.
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+
+ // Upload the image into the texture.
+ gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image);
+ return texture;
+ }
+
+ var currentGL, currentCanvas;
+ function generateGL() {
+ if (currentGL) {
+ return;
+ }
+ currentCanvas = document.createElement('canvas');
+ currentGL = currentCanvas.getContext('webgl',
+ { premultipliedalpha: false });
+ }
+
+ var smaskVertexShaderCode = '\
+ attribute vec2 a_position; \
+ attribute vec2 a_texCoord; \
+ \
+ uniform vec2 u_resolution; \
+ \
+ varying vec2 v_texCoord; \
+ \
+ void main() { \
+ vec2 clipSpace = (a_position / u_resolution) * 2.0 - 1.0; \
+ gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \
+ \
+ v_texCoord = a_texCoord; \
+ } ';
+
+ var smaskFragmentShaderCode = '\
+ precision mediump float; \
+ \
+ uniform vec4 u_backdrop; \
+ uniform int u_subtype; \
+ uniform sampler2D u_image; \
+ uniform sampler2D u_mask; \
+ \
+ varying vec2 v_texCoord; \
+ \
+ void main() { \
+ vec4 imageColor = texture2D(u_image, v_texCoord); \
+ vec4 maskColor = texture2D(u_mask, v_texCoord); \
+ if (u_backdrop.a > 0.0) { \
+ maskColor.rgb = maskColor.rgb * maskColor.a + \
+ u_backdrop.rgb * (1.0 - maskColor.a); \
+ } \
+ float lum; \
+ if (u_subtype == 0) { \
+ lum = maskColor.a; \
+ } else { \
+ lum = maskColor.r * 0.3 + maskColor.g * 0.59 + \
+ maskColor.b * 0.11; \
+ } \
+ imageColor.a *= lum; \
+ imageColor.rgb *= imageColor.a; \
+ gl_FragColor = imageColor; \
+ } ';
+
+ var smaskCache = null;
+
+ function initSmaskGL() {
+ var canvas, gl;
+
+ generateGL();
+ canvas = currentCanvas;
+ currentCanvas = null;
+ gl = currentGL;
+ currentGL = null;
+
+ // setup a GLSL program
+ var vertexShader = createVertexShader(gl, smaskVertexShaderCode);
+ var fragmentShader = createFragmentShader(gl, smaskFragmentShaderCode);
+ var program = createProgram(gl, [vertexShader, fragmentShader]);
+ gl.useProgram(program);
+
+ var cache = {};
+ cache.gl = gl;
+ cache.canvas = canvas;
+ cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');
+ cache.positionLocation = gl.getAttribLocation(program, 'a_position');
+ cache.backdropLocation = gl.getUniformLocation(program, 'u_backdrop');
+ cache.subtypeLocation = gl.getUniformLocation(program, 'u_subtype');
+
+ var texCoordLocation = gl.getAttribLocation(program, 'a_texCoord');
+ var texLayerLocation = gl.getUniformLocation(program, 'u_image');
+ var texMaskLocation = gl.getUniformLocation(program, 'u_mask');
+
+ // provide texture coordinates for the rectangle.
+ var texCoordBuffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer);
+ gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([
+ 0.0, 0.0,
+ 1.0, 0.0,
+ 0.0, 1.0,
+ 0.0, 1.0,
+ 1.0, 0.0,
+ 1.0, 1.0]), gl.STATIC_DRAW);
+ gl.enableVertexAttribArray(texCoordLocation);
+ gl.vertexAttribPointer(texCoordLocation, 2, gl.FLOAT, false, 0, 0);
+
+ gl.uniform1i(texLayerLocation, 0);
+ gl.uniform1i(texMaskLocation, 1);
+
+ smaskCache = cache;
+ }
+
+ function composeSMask(layer, mask, properties) {
+ var width = layer.width, height = layer.height;
+
+ if (!smaskCache) {
+ initSmaskGL();
+ }
+ var cache = smaskCache,canvas = cache.canvas, gl = cache.gl;
+ canvas.width = width;
+ canvas.height = height;
+ gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
+ gl.uniform2f(cache.resolutionLocation, width, height);
+
+ if (properties.backdrop) {
+ gl.uniform4f(cache.resolutionLocation, properties.backdrop[0],
+ properties.backdrop[1], properties.backdrop[2], 1);
+ } else {
+ gl.uniform4f(cache.resolutionLocation, 0, 0, 0, 0);
+ }
+ gl.uniform1i(cache.subtypeLocation,
+ properties.subtype === 'Luminosity' ? 1 : 0);
+
+ // Create a textures
+ var texture = createTexture(gl, layer, gl.TEXTURE0);
+ var maskTexture = createTexture(gl, mask, gl.TEXTURE1);
+
+
+ // Create a buffer and put a single clipspace rectangle in
+ // it (2 triangles)
+ var buffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
+ gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([
+ 0, 0,
+ width, 0,
+ 0, height,
+ 0, height,
+ width, 0,
+ width, height]), gl.STATIC_DRAW);
+ gl.enableVertexAttribArray(cache.positionLocation);
+ gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
+
+ // draw
+ gl.clearColor(0, 0, 0, 0);
+ gl.enable(gl.BLEND);
+ gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
+ gl.clear(gl.COLOR_BUFFER_BIT);
+
+ gl.drawArrays(gl.TRIANGLES, 0, 6);
+
+ gl.flush();
+
+ gl.deleteTexture(texture);
+ gl.deleteTexture(maskTexture);
+ gl.deleteBuffer(buffer);
+
+ return canvas;
+ }
+
+ var figuresVertexShaderCode = '\
+ attribute vec2 a_position; \
+ attribute vec3 a_color; \
+ \
+ uniform vec2 u_resolution; \
+ uniform vec2 u_scale; \
+ uniform vec2 u_offset; \
+ \
+ varying vec4 v_color; \
+ \
+ void main() { \
+ vec2 position = (a_position + u_offset) * u_scale; \
+ vec2 clipSpace = (position / u_resolution) * 2.0 - 1.0; \
+ gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \
+ \
+ v_color = vec4(a_color / 255.0, 1.0); \
+ } ';
+
+ var figuresFragmentShaderCode = '\
+ precision mediump float; \
+ \
+ varying vec4 v_color; \
+ \
+ void main() { \
+ gl_FragColor = v_color; \
+ } ';
+
+ var figuresCache = null;
+
+ function initFiguresGL() {
+ var canvas, gl;
+
+ generateGL();
+ canvas = currentCanvas;
+ currentCanvas = null;
+ gl = currentGL;
+ currentGL = null;
+
+ // setup a GLSL program
+ var vertexShader = createVertexShader(gl, figuresVertexShaderCode);
+ var fragmentShader = createFragmentShader(gl, figuresFragmentShaderCode);
+ var program = createProgram(gl, [vertexShader, fragmentShader]);
+ gl.useProgram(program);
+
+ var cache = {};
+ cache.gl = gl;
+ cache.canvas = canvas;
+ cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');
+ cache.scaleLocation = gl.getUniformLocation(program, 'u_scale');
+ cache.offsetLocation = gl.getUniformLocation(program, 'u_offset');
+ cache.positionLocation = gl.getAttribLocation(program, 'a_position');
+ cache.colorLocation = gl.getAttribLocation(program, 'a_color');
+
+ figuresCache = cache;
+ }
+
+ function drawFigures(width, height, backgroundColor, figures, context) {
+ if (!figuresCache) {
+ initFiguresGL();
+ }
+ var cache = figuresCache, canvas = cache.canvas, gl = cache.gl;
+
+ canvas.width = width;
+ canvas.height = height;
+ gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
+ gl.uniform2f(cache.resolutionLocation, width, height);
+
+ // count triangle points
+ var count = 0;
+ var i, ii, rows;
+ for (i = 0, ii = figures.length; i < ii; i++) {
+ switch (figures[i].type) {
+ case 'lattice':
+ rows = (figures[i].coords.length / figures[i].verticesPerRow) | 0;
+ count += (rows - 1) * (figures[i].verticesPerRow - 1) * 6;
+ break;
+ case 'triangles':
+ count += figures[i].coords.length;
+ break;
+ }
+ }
+ // transfer data
+ var coords = new Float32Array(count * 2);
+ var colors = new Uint8Array(count * 3);
+ var coordsMap = context.coords, colorsMap = context.colors;
+ var pIndex = 0, cIndex = 0;
+ for (i = 0, ii = figures.length; i < ii; i++) {
+ var figure = figures[i], ps = figure.coords, cs = figure.colors;
+ switch (figure.type) {
+ case 'lattice':
+ var cols = figure.verticesPerRow;
+ rows = (ps.length / cols) | 0;
+ for (var row = 1; row < rows; row++) {
+ var offset = row * cols + 1;
+ for (var col = 1; col < cols; col++, offset++) {
+ coords[pIndex] = coordsMap[ps[offset - cols - 1]];
+ coords[pIndex + 1] = coordsMap[ps[offset - cols - 1] + 1];
+ coords[pIndex + 2] = coordsMap[ps[offset - cols]];
+ coords[pIndex + 3] = coordsMap[ps[offset - cols] + 1];
+ coords[pIndex + 4] = coordsMap[ps[offset - 1]];
+ coords[pIndex + 5] = coordsMap[ps[offset - 1] + 1];
+ colors[cIndex] = colorsMap[cs[offset - cols - 1]];
+ colors[cIndex + 1] = colorsMap[cs[offset - cols - 1] + 1];
+ colors[cIndex + 2] = colorsMap[cs[offset - cols - 1] + 2];
+ colors[cIndex + 3] = colorsMap[cs[offset - cols]];
+ colors[cIndex + 4] = colorsMap[cs[offset - cols] + 1];
+ colors[cIndex + 5] = colorsMap[cs[offset - cols] + 2];
+ colors[cIndex + 6] = colorsMap[cs[offset - 1]];
+ colors[cIndex + 7] = colorsMap[cs[offset - 1] + 1];
+ colors[cIndex + 8] = colorsMap[cs[offset - 1] + 2];
+
+ coords[pIndex + 6] = coords[pIndex + 2];
+ coords[pIndex + 7] = coords[pIndex + 3];
+ coords[pIndex + 8] = coords[pIndex + 4];
+ coords[pIndex + 9] = coords[pIndex + 5];
+ coords[pIndex + 10] = coordsMap[ps[offset]];
+ coords[pIndex + 11] = coordsMap[ps[offset] + 1];
+ colors[cIndex + 9] = colors[cIndex + 3];
+ colors[cIndex + 10] = colors[cIndex + 4];
+ colors[cIndex + 11] = colors[cIndex + 5];
+ colors[cIndex + 12] = colors[cIndex + 6];
+ colors[cIndex + 13] = colors[cIndex + 7];
+ colors[cIndex + 14] = colors[cIndex + 8];
+ colors[cIndex + 15] = colorsMap[cs[offset]];
+ colors[cIndex + 16] = colorsMap[cs[offset] + 1];
+ colors[cIndex + 17] = colorsMap[cs[offset] + 2];
+ pIndex += 12;
+ cIndex += 18;
+ }
+ }
+ break;
+ case 'triangles':
+ for (var j = 0, jj = ps.length; j < jj; j++) {
+ coords[pIndex] = coordsMap[ps[j]];
+ coords[pIndex + 1] = coordsMap[ps[j] + 1];
+ colors[cIndex] = colorsMap[cs[i]];
+ colors[cIndex + 1] = colorsMap[cs[j] + 1];
+ colors[cIndex + 2] = colorsMap[cs[j] + 2];
+ pIndex += 2;
+ cIndex += 3;
+ }
+ break;
+ }
+ }
+
+ // draw
+ if (backgroundColor) {
+ gl.clearColor(backgroundColor[0] / 255, backgroundColor[1] / 255,
+ backgroundColor[2] / 255, 1.0);
+ } else {
+ gl.clearColor(0, 0, 0, 0);
+ }
+ gl.clear(gl.COLOR_BUFFER_BIT);
+
+ var coordsBuffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, coordsBuffer);
+ gl.bufferData(gl.ARRAY_BUFFER, coords, gl.STATIC_DRAW);
+ gl.enableVertexAttribArray(cache.positionLocation);
+ gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
+
+ var colorsBuffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, colorsBuffer);
+ gl.bufferData(gl.ARRAY_BUFFER, colors, gl.STATIC_DRAW);
+ gl.enableVertexAttribArray(cache.colorLocation);
+ gl.vertexAttribPointer(cache.colorLocation, 3, gl.UNSIGNED_BYTE, false,
+ 0, 0);
+
+ gl.uniform2f(cache.scaleLocation, context.scaleX, context.scaleY);
+ gl.uniform2f(cache.offsetLocation, context.offsetX, context.offsetY);
+
+ gl.drawArrays(gl.TRIANGLES, 0, count);
+
+ gl.flush();
+
+ gl.deleteBuffer(coordsBuffer);
+ gl.deleteBuffer(colorsBuffer);
+
+ return canvas;
+ }
+
+ function cleanup() {
+ if (smaskCache && smaskCache.canvas) {
+ smaskCache.canvas.width = 0;
+ smaskCache.canvas.height = 0;
+ }
+ if (figuresCache && figuresCache.canvas) {
+ figuresCache.canvas.width = 0;
+ figuresCache.canvas.height = 0;
+ }
+ smaskCache = null;
+ figuresCache = null;
+ }
+
+ return {
+ get isEnabled() {
+ if (PDFJS.disableWebGL) {
+ return false;
+ }
+ var enabled = false;
+ try {
+ generateGL();
+ enabled = !!currentGL;
+ } catch (e) { }
+ return shadow(this, 'isEnabled', enabled);
+ },
+ composeSMask: composeSMask,
+ drawFigures: drawFigures,
+ clear: cleanup
+ };
+})();
+
+
+var ShadingIRs = {};
+
+ShadingIRs.RadialAxial = {
+ fromIR: function RadialAxial_fromIR(raw) {
+ var type = raw[1];
+ var colorStops = raw[2];
+ var p0 = raw[3];
+ var p1 = raw[4];
+ var r0 = raw[5];
+ var r1 = raw[6];
+ return {
+ type: 'Pattern',
+ getPattern: function RadialAxial_getPattern(ctx) {
+ var grad;
+ if (type === 'axial') {
+ grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
+ } else if (type === 'radial') {
+ grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1);
+ }
+
+ for (var i = 0, ii = colorStops.length; i < ii; ++i) {
+ var c = colorStops[i];
+ grad.addColorStop(c[0], c[1]);
+ }
+ return grad;
+ }
+ };
+ }
+};
+
+var createMeshCanvas = (function createMeshCanvasClosure() {
+ function drawTriangle(data, context, p1, p2, p3, c1, c2, c3) {
+ // Very basic Gouraud-shaded triangle rasterization algorithm.
+ var coords = context.coords, colors = context.colors;
+ var bytes = data.data, rowSize = data.width * 4;
+ var tmp;
+ if (coords[p1 + 1] > coords[p2 + 1]) {
+ tmp = p1; p1 = p2; p2 = tmp; tmp = c1; c1 = c2; c2 = tmp;
+ }
+ if (coords[p2 + 1] > coords[p3 + 1]) {
+ tmp = p2; p2 = p3; p3 = tmp; tmp = c2; c2 = c3; c3 = tmp;
+ }
+ if (coords[p1 + 1] > coords[p2 + 1]) {
+ tmp = p1; p1 = p2; p2 = tmp; tmp = c1; c1 = c2; c2 = tmp;
+ }
+ var x1 = (coords[p1] + context.offsetX) * context.scaleX;
+ var y1 = (coords[p1 + 1] + context.offsetY) * context.scaleY;
+ var x2 = (coords[p2] + context.offsetX) * context.scaleX;
+ var y2 = (coords[p2 + 1] + context.offsetY) * context.scaleY;
+ var x3 = (coords[p3] + context.offsetX) * context.scaleX;
+ var y3 = (coords[p3 + 1] + context.offsetY) * context.scaleY;
+ if (y1 >= y3) {
+ return;
+ }
+ var c1r = colors[c1], c1g = colors[c1 + 1], c1b = colors[c1 + 2];
+ var c2r = colors[c2], c2g = colors[c2 + 1], c2b = colors[c2 + 2];
+ var c3r = colors[c3], c3g = colors[c3 + 1], c3b = colors[c3 + 2];
+
+ var minY = Math.round(y1), maxY = Math.round(y3);
+ var xa, car, cag, cab;
+ var xb, cbr, cbg, cbb;
+ var k;
+ for (var y = minY; y <= maxY; y++) {
+ if (y < y2) {
+ k = y < y1 ? 0 : y1 === y2 ? 1 : (y1 - y) / (y1 - y2);
+ xa = x1 - (x1 - x2) * k;
+ car = c1r - (c1r - c2r) * k;
+ cag = c1g - (c1g - c2g) * k;
+ cab = c1b - (c1b - c2b) * k;
+ } else {
+ k = y > y3 ? 1 : y2 === y3 ? 0 : (y2 - y) / (y2 - y3);
+ xa = x2 - (x2 - x3) * k;
+ car = c2r - (c2r - c3r) * k;
+ cag = c2g - (c2g - c3g) * k;
+ cab = c2b - (c2b - c3b) * k;
+ }
+ k = y < y1 ? 0 : y > y3 ? 1 : (y1 - y) / (y1 - y3);
+ xb = x1 - (x1 - x3) * k;
+ cbr = c1r - (c1r - c3r) * k;
+ cbg = c1g - (c1g - c3g) * k;
+ cbb = c1b - (c1b - c3b) * k;
+ var x1_ = Math.round(Math.min(xa, xb));
+ var x2_ = Math.round(Math.max(xa, xb));
+ var j = rowSize * y + x1_ * 4;
+ for (var x = x1_; x <= x2_; x++) {
+ k = (xa - x) / (xa - xb);
+ k = k < 0 ? 0 : k > 1 ? 1 : k;
+ bytes[j++] = (car - (car - cbr) * k) | 0;
+ bytes[j++] = (cag - (cag - cbg) * k) | 0;
+ bytes[j++] = (cab - (cab - cbb) * k) | 0;
+ bytes[j++] = 255;
+ }
+ }
+ }
+
+ function drawFigure(data, figure, context) {
+ var ps = figure.coords;
+ var cs = figure.colors;
+ var i, ii;
+ switch (figure.type) {
+ case 'lattice':
+ var verticesPerRow = figure.verticesPerRow;
+ var rows = Math.floor(ps.length / verticesPerRow) - 1;
+ var cols = verticesPerRow - 1;
+ for (i = 0; i < rows; i++) {
+ var q = i * verticesPerRow;
+ for (var j = 0; j < cols; j++, q++) {
+ drawTriangle(data, context,
+ ps[q], ps[q + 1], ps[q + verticesPerRow],
+ cs[q], cs[q + 1], cs[q + verticesPerRow]);
+ drawTriangle(data, context,
+ ps[q + verticesPerRow + 1], ps[q + 1], ps[q + verticesPerRow],
+ cs[q + verticesPerRow + 1], cs[q + 1], cs[q + verticesPerRow]);
+ }
+ }
+ break;
+ case 'triangles':
+ for (i = 0, ii = ps.length; i < ii; i += 3) {
+ drawTriangle(data, context,
+ ps[i], ps[i + 1], ps[i + 2],
+ cs[i], cs[i + 1], cs[i + 2]);
+ }
+ break;
+ default:
+ error('illigal figure');
+ break;
+ }
+ }
+
+ function createMeshCanvas(bounds, combinesScale, coords, colors, figures,
+ backgroundColor) {
+ // we will increase scale on some weird factor to let antialiasing take
+ // care of "rough" edges
+ var EXPECTED_SCALE = 1.1;
+ // MAX_PATTERN_SIZE is used to avoid OOM situation.
+ var MAX_PATTERN_SIZE = 3000; // 10in @ 300dpi shall be enough
+
+ var offsetX = Math.floor(bounds[0]);
+ var offsetY = Math.floor(bounds[1]);
+ var boundsWidth = Math.ceil(bounds[2]) - offsetX;
+ var boundsHeight = Math.ceil(bounds[3]) - offsetY;
+
+ var width = Math.min(Math.ceil(Math.abs(boundsWidth * combinesScale[0] *
+ EXPECTED_SCALE)), MAX_PATTERN_SIZE);
+ var height = Math.min(Math.ceil(Math.abs(boundsHeight * combinesScale[1] *
+ EXPECTED_SCALE)), MAX_PATTERN_SIZE);
+ var scaleX = boundsWidth / width;
+ var scaleY = boundsHeight / height;
+
+ var context = {
+ coords: coords,
+ colors: colors,
+ offsetX: -offsetX,
+ offsetY: -offsetY,
+ scaleX: 1 / scaleX,
+ scaleY: 1 / scaleY
+ };
+
+ var canvas, tmpCanvas, i, ii;
+ if (WebGLUtils.isEnabled) {
+ canvas = WebGLUtils.drawFigures(width, height, backgroundColor,
+ figures, context);
+
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=972126
+ tmpCanvas = CachedCanvases.getCanvas('mesh', width, height, false);
+ tmpCanvas.context.drawImage(canvas, 0, 0);
+ canvas = tmpCanvas.canvas;
+ } else {
+ tmpCanvas = CachedCanvases.getCanvas('mesh', width, height, false);
+ var tmpCtx = tmpCanvas.context;
+
+ var data = tmpCtx.createImageData(width, height);
+ if (backgroundColor) {
+ var bytes = data.data;
+ for (i = 0, ii = bytes.length; i < ii; i += 4) {
+ bytes[i] = backgroundColor[0];
+ bytes[i + 1] = backgroundColor[1];
+ bytes[i + 2] = backgroundColor[2];
+ bytes[i + 3] = 255;
+ }
+ }
+ for (i = 0; i < figures.length; i++) {
+ drawFigure(data, figures[i], context);
+ }
+ tmpCtx.putImageData(data, 0, 0);
+ canvas = tmpCanvas.canvas;
+ }
+
+ return {canvas: canvas, offsetX: offsetX, offsetY: offsetY,
+ scaleX: scaleX, scaleY: scaleY};
+ }
+ return createMeshCanvas;
+})();
+
+ShadingIRs.Mesh = {
+ fromIR: function Mesh_fromIR(raw) {
+ //var type = raw[1];
+ var coords = raw[2];
+ var colors = raw[3];
+ var figures = raw[4];
+ var bounds = raw[5];
+ var matrix = raw[6];
+ //var bbox = raw[7];
+ var background = raw[8];
+ return {
+ type: 'Pattern',
+ getPattern: function Mesh_getPattern(ctx, owner, shadingFill) {
+ var scale;
+ if (shadingFill) {
+ scale = Util.singularValueDecompose2dScale(ctx.mozCurrentTransform);
+ } else {
+ // Obtain scale from matrix and current transformation matrix.
+ scale = Util.singularValueDecompose2dScale(owner.baseTransform);
+ if (matrix) {
+ var matrixScale = Util.singularValueDecompose2dScale(matrix);
+ scale = [scale[0] * matrixScale[0],
+ scale[1] * matrixScale[1]];
+ }
+ }
+
+
+ // Rasterizing on the main thread since sending/queue large canvases
+ // might cause OOM.
+ var temporaryPatternCanvas = createMeshCanvas(bounds, scale, coords,
+ colors, figures, shadingFill ? null : background);
+
+ if (!shadingFill) {
+ ctx.setTransform.apply(ctx, owner.baseTransform);
+ if (matrix) {
+ ctx.transform.apply(ctx, matrix);
+ }
+ }
+
+ ctx.translate(temporaryPatternCanvas.offsetX,
+ temporaryPatternCanvas.offsetY);
+ ctx.scale(temporaryPatternCanvas.scaleX,
+ temporaryPatternCanvas.scaleY);
+
+ return ctx.createPattern(temporaryPatternCanvas.canvas, 'no-repeat');
+ }
+ };
+ }
+};
+
+ShadingIRs.Dummy = {
+ fromIR: function Dummy_fromIR() {
+ return {
+ type: 'Pattern',
+ getPattern: function Dummy_fromIR_getPattern() {
+ return 'hotpink';
+ }
+ };
+ }
+};
+
+function getShadingPatternFromIR(raw) {
+ var shadingIR = ShadingIRs[raw[0]];
+ if (!shadingIR) {
+ error('Unknown IR type: ' + raw[0]);
+ }
+ return shadingIR.fromIR(raw);
+}
+
+var TilingPattern = (function TilingPatternClosure() {
+ var PaintType = {
+ COLORED: 1,
+ UNCOLORED: 2
+ };
+
+ var MAX_PATTERN_SIZE = 3000; // 10in @ 300dpi shall be enough
+
+ function TilingPattern(IR, color, ctx, objs, commonObjs, baseTransform) {
+ this.operatorList = IR[2];
+ this.matrix = IR[3] || [1, 0, 0, 1, 0, 0];
+ this.bbox = IR[4];
+ this.xstep = IR[5];
+ this.ystep = IR[6];
+ this.paintType = IR[7];
+ this.tilingType = IR[8];
+ this.color = color;
+ this.objs = objs;
+ this.commonObjs = commonObjs;
+ this.baseTransform = baseTransform;
+ this.type = 'Pattern';
+ this.ctx = ctx;
+ }
+
+ TilingPattern.prototype = {
+ createPatternCanvas: function TilinPattern_createPatternCanvas(owner) {
+ var operatorList = this.operatorList;
+ var bbox = this.bbox;
+ var xstep = this.xstep;
+ var ystep = this.ystep;
+ var paintType = this.paintType;
+ var tilingType = this.tilingType;
+ var color = this.color;
+ var objs = this.objs;
+ var commonObjs = this.commonObjs;
+
+ info('TilingType: ' + tilingType);
+
+ var x0 = bbox[0], y0 = bbox[1], x1 = bbox[2], y1 = bbox[3];
+
+ var topLeft = [x0, y0];
+ // we want the canvas to be as large as the step size
+ var botRight = [x0 + xstep, y0 + ystep];
+
+ var width = botRight[0] - topLeft[0];
+ var height = botRight[1] - topLeft[1];
+
+ // Obtain scale from matrix and current transformation matrix.
+ var matrixScale = Util.singularValueDecompose2dScale(this.matrix);
+ var curMatrixScale = Util.singularValueDecompose2dScale(
+ this.baseTransform);
+ var combinedScale = [matrixScale[0] * curMatrixScale[0],
+ matrixScale[1] * curMatrixScale[1]];
+
+ // MAX_PATTERN_SIZE is used to avoid OOM situation.
+ // Use width and height values that are as close as possible to the end
+ // result when the pattern is used. Too low value makes the pattern look
+ // blurry. Too large value makes it look too crispy.
+ width = Math.min(Math.ceil(Math.abs(width * combinedScale[0])),
+ MAX_PATTERN_SIZE);
+
+ height = Math.min(Math.ceil(Math.abs(height * combinedScale[1])),
+ MAX_PATTERN_SIZE);
+
+ var tmpCanvas = CachedCanvases.getCanvas('pattern', width, height, true);
+ var tmpCtx = tmpCanvas.context;
+ var graphics = new CanvasGraphics(tmpCtx, commonObjs, objs);
+ graphics.groupLevel = owner.groupLevel;
+
+ this.setFillAndStrokeStyleToContext(tmpCtx, paintType, color);
+
+ this.setScale(width, height, xstep, ystep);
+ this.transformToScale(graphics);
+
+ // transform coordinates to pattern space
+ var tmpTranslate = [1, 0, 0, 1, -topLeft[0], -topLeft[1]];
+ graphics.transform.apply(graphics, tmpTranslate);
+
+ this.clipBbox(graphics, bbox, x0, y0, x1, y1);
+
+ graphics.executeOperatorList(operatorList);
+ return tmpCanvas.canvas;
+ },
+
+ setScale: function TilingPattern_setScale(width, height, xstep, ystep) {
+ this.scale = [width / xstep, height / ystep];
+ },
+
+ transformToScale: function TilingPattern_transformToScale(graphics) {
+ var scale = this.scale;
+ var tmpScale = [scale[0], 0, 0, scale[1], 0, 0];
+ graphics.transform.apply(graphics, tmpScale);
+ },
+
+ scaleToContext: function TilingPattern_scaleToContext() {
+ var scale = this.scale;
+ this.ctx.scale(1 / scale[0], 1 / scale[1]);
+ },
+
+ clipBbox: function clipBbox(graphics, bbox, x0, y0, x1, y1) {
+ if (bbox && isArray(bbox) && bbox.length === 4) {
+ var bboxWidth = x1 - x0;
+ var bboxHeight = y1 - y0;
+ graphics.ctx.rect(x0, y0, bboxWidth, bboxHeight);
+ graphics.clip();
+ graphics.endPath();
+ }
+ },
+
+ setFillAndStrokeStyleToContext:
+ function setFillAndStrokeStyleToContext(context, paintType, color) {
+ switch (paintType) {
+ case PaintType.COLORED:
+ var ctx = this.ctx;
+ context.fillStyle = ctx.fillStyle;
+ context.strokeStyle = ctx.strokeStyle;
+ break;
+ case PaintType.UNCOLORED:
+ var cssColor = Util.makeCssRgb(color[0], color[1], color[2]);
+ context.fillStyle = cssColor;
+ context.strokeStyle = cssColor;
+ break;
+ default:
+ error('Unsupported paint type: ' + paintType);
+ }
+ },
+
+ getPattern: function TilingPattern_getPattern(ctx, owner) {
+ var temporaryPatternCanvas = this.createPatternCanvas(owner);
+
+ ctx = this.ctx;
+ ctx.setTransform.apply(ctx, this.baseTransform);
+ ctx.transform.apply(ctx, this.matrix);
+ this.scaleToContext();
+
+ return ctx.createPattern(temporaryPatternCanvas, 'repeat');
+ }
+ };
+
+ return TilingPattern;
+})();
+
+
+PDFJS.disableFontFace = false;
+
+var FontLoader = {
+ insertRule: function fontLoaderInsertRule(rule) {
+ var styleElement = document.getElementById('PDFJS_FONT_STYLE_TAG');
+ if (!styleElement) {
+ styleElement = document.createElement('style');
+ styleElement.id = 'PDFJS_FONT_STYLE_TAG';
+ document.documentElement.getElementsByTagName('head')[0].appendChild(
+ styleElement);
+ }
+
+ var styleSheet = styleElement.sheet;
+ styleSheet.insertRule(rule, styleSheet.cssRules.length);
+ },
+
+ clear: function fontLoaderClear() {
+ var styleElement = document.getElementById('PDFJS_FONT_STYLE_TAG');
+ if (styleElement) {
+ styleElement.parentNode.removeChild(styleElement);
+ }
+ this.nativeFontFaces.forEach(function(nativeFontFace) {
+ document.fonts.delete(nativeFontFace);
+ });
+ this.nativeFontFaces.length = 0;
+ },
+ get loadTestFont() {
+ // This is a CFF font with 1 glyph for '.' that fills its entire width and
+ // height.
+ return shadow(this, 'loadTestFont', atob(
+ 'T1RUTwALAIAAAwAwQ0ZGIDHtZg4AAAOYAAAAgUZGVE1lkzZwAAAEHAAAABxHREVGABQAFQ' +
+ 'AABDgAAAAeT1MvMlYNYwkAAAEgAAAAYGNtYXABDQLUAAACNAAAAUJoZWFk/xVFDQAAALwA' +
+ 'AAA2aGhlYQdkA+oAAAD0AAAAJGhtdHgD6AAAAAAEWAAAAAZtYXhwAAJQAAAAARgAAAAGbm' +
+ 'FtZVjmdH4AAAGAAAAAsXBvc3T/hgAzAAADeAAAACAAAQAAAAEAALZRFsRfDzz1AAsD6AAA' +
+ 'AADOBOTLAAAAAM4KHDwAAAAAA+gDIQAAAAgAAgAAAAAAAAABAAADIQAAAFoD6AAAAAAD6A' +
+ 'ABAAAAAAAAAAAAAAAAAAAAAQAAUAAAAgAAAAQD6AH0AAUAAAKKArwAAACMAooCvAAAAeAA' +
+ 'MQECAAACAAYJAAAAAAAAAAAAAQAAAAAAAAAAAAAAAFBmRWQAwAAuAC4DIP84AFoDIQAAAA' +
+ 'AAAQAAAAAAAAAAACAAIAABAAAADgCuAAEAAAAAAAAAAQAAAAEAAAAAAAEAAQAAAAEAAAAA' +
+ 'AAIAAQAAAAEAAAAAAAMAAQAAAAEAAAAAAAQAAQAAAAEAAAAAAAUAAQAAAAEAAAAAAAYAAQ' +
+ 'AAAAMAAQQJAAAAAgABAAMAAQQJAAEAAgABAAMAAQQJAAIAAgABAAMAAQQJAAMAAgABAAMA' +
+ 'AQQJAAQAAgABAAMAAQQJAAUAAgABAAMAAQQJAAYAAgABWABYAAAAAAAAAwAAAAMAAAAcAA' +
+ 'EAAAAAADwAAwABAAAAHAAEACAAAAAEAAQAAQAAAC7//wAAAC7////TAAEAAAAAAAABBgAA' +
+ 'AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAAAAA' +
+ 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' +
+ 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' +
+ 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' +
+ 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMAAA' +
+ 'AAAAD/gwAyAAAAAQAAAAAAAAAAAAAAAAAAAAABAAQEAAEBAQJYAAEBASH4DwD4GwHEAvgc' +
+ 'A/gXBIwMAYuL+nz5tQXkD5j3CBLnEQACAQEBIVhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWF' +
+ 'hYWFhYWFhYAAABAQAADwACAQEEE/t3Dov6fAH6fAT+fPp8+nwHDosMCvm1Cvm1DAz6fBQA' +
+ 'AAAAAAABAAAAAMmJbzEAAAAAzgTjFQAAAADOBOQpAAEAAAAAAAAADAAUAAQAAAABAAAAAg' +
+ 'ABAAAAAAAAAAAD6AAAAAAAAA=='
+ ));
+ },
+
+ loadTestFontId: 0,
+
+ loadingContext: {
+ requests: [],
+ nextRequestId: 0
+ },
+
+ isSyncFontLoadingSupported: (function detectSyncFontLoadingSupport() {
+ if (isWorker) {
+ return false;
+ }
+
+ // User agent string sniffing is bad, but there is no reliable way to tell
+ // if font is fully loaded and ready to be used with canvas.
+ var userAgent = window.navigator.userAgent;
+ var m = /Mozilla\/5.0.*?rv:(\d+).*? Gecko/.exec(userAgent);
+ if (m && m[1] >= 14) {
+ return true;
+ }
+ // TODO other browsers
+ if (userAgent === 'node') {
+ return true;
+ }
+ return false;
+ })(),
+
+ nativeFontFaces: [],
+
+ isFontLoadingAPISupported: (!isWorker && typeof document !== 'undefined' &&
+ !!document.fonts),
+
+ addNativeFontFace: function fontLoader_addNativeFontFace(nativeFontFace) {
+ this.nativeFontFaces.push(nativeFontFace);
+ document.fonts.add(nativeFontFace);
+ },
+
+ bind: function fontLoaderBind(fonts, callback) {
+ assert(!isWorker, 'bind() shall be called from main thread');
+
+ var rules = [];
+ var fontsToLoad = [];
+ var fontLoadPromises = [];
+ for (var i = 0, ii = fonts.length; i < ii; i++) {
+ var font = fonts[i];
+
+ // Add the font to the DOM only once or skip if the font
+ // is already loaded.
+ if (font.attached || font.loading === false) {
+ continue;
+ }
+ font.attached = true;
+
+ if (this.isFontLoadingAPISupported) {
+ var nativeFontFace = font.createNativeFontFace();
+ if (nativeFontFace) {
+ fontLoadPromises.push(nativeFontFace.loaded);
+ }
+ } else {
+ var rule = font.bindDOM();
+ if (rule) {
+ rules.push(rule);
+ fontsToLoad.push(font);
+ }
+ }
+ }
+
+ var request = FontLoader.queueLoadingCallback(callback);
+ if (this.isFontLoadingAPISupported) {
+ Promise.all(fontsToLoad).then(function() {
+ request.complete();
+ });
+ } else if (rules.length > 0 && !this.isSyncFontLoadingSupported) {
+ FontLoader.prepareFontLoadEvent(rules, fontsToLoad, request);
+ } else {
+ request.complete();
+ }
+ },
+
+ queueLoadingCallback: function FontLoader_queueLoadingCallback(callback) {
+ function LoadLoader_completeRequest() {
+ assert(!request.end, 'completeRequest() cannot be called twice');
+ request.end = Date.now();
+
+ // sending all completed requests in order how they were queued
+ while (context.requests.length > 0 && context.requests[0].end) {
+ var otherRequest = context.requests.shift();
+ setTimeout(otherRequest.callback, 0);
+ }
+ }
+
+ var context = FontLoader.loadingContext;
+ var requestId = 'pdfjs-font-loading-' + (context.nextRequestId++);
+ var request = {
+ id: requestId,
+ complete: LoadLoader_completeRequest,
+ callback: callback,
+ started: Date.now()
+ };
+ context.requests.push(request);
+ return request;
+ },
+
+ prepareFontLoadEvent: function fontLoaderPrepareFontLoadEvent(rules,
+ fonts,
+ request) {
+ /** Hack begin */
+ // There's currently no event when a font has finished downloading so the
+ // following code is a dirty hack to 'guess' when a font is
+ // ready. It's assumed fonts are loaded in order, so add a known test
+ // font after the desired fonts and then test for the loading of that
+ // test font.
+
+ function int32(data, offset) {
+ return (data.charCodeAt(offset) << 24) |
+ (data.charCodeAt(offset + 1) << 16) |
+ (data.charCodeAt(offset + 2) << 8) |
+ (data.charCodeAt(offset + 3) & 0xff);
+ }
+
+ function spliceString(s, offset, remove, insert) {
+ var chunk1 = s.substr(0, offset);
+ var chunk2 = s.substr(offset + remove);
+ return chunk1 + insert + chunk2;
+ }
+
+ var i, ii;
+
+ var canvas = document.createElement('canvas');
+ canvas.width = 1;
+ canvas.height = 1;
+ var ctx = canvas.getContext('2d');
+
+ var called = 0;
+ function isFontReady(name, callback) {
+ called++;
+ // With setTimeout clamping this gives the font ~100ms to load.
+ if(called > 30) {
+ warn('Load test font never loaded.');
+ callback();
+ return;
+ }
+ ctx.font = '30px ' + name;
+ ctx.fillText('.', 0, 20);
+ var imageData = ctx.getImageData(0, 0, 1, 1);
+ if (imageData.data[3] > 0) {
+ callback();
+ return;
+ }
+ setTimeout(isFontReady.bind(null, name, callback));
+ }
+
+ var loadTestFontId = 'lt' + Date.now() + this.loadTestFontId++;
+ // Chromium seems to cache fonts based on a hash of the actual font data,
+ // so the font must be modified for each load test else it will appear to
+ // be loaded already.
+ // TODO: This could maybe be made faster by avoiding the btoa of the full
+ // font by splitting it in chunks before hand and padding the font id.
+ var data = this.loadTestFont;
+ var COMMENT_OFFSET = 976; // has to be on 4 byte boundary (for checksum)
+ data = spliceString(data, COMMENT_OFFSET, loadTestFontId.length,
+ loadTestFontId);
+ // CFF checksum is important for IE, adjusting it
+ var CFF_CHECKSUM_OFFSET = 16;
+ var XXXX_VALUE = 0x58585858; // the "comment" filled with 'X'
+ var checksum = int32(data, CFF_CHECKSUM_OFFSET);
+ for (i = 0, ii = loadTestFontId.length - 3; i < ii; i += 4) {
+ checksum = (checksum - XXXX_VALUE + int32(loadTestFontId, i)) | 0;
+ }
+ if (i < loadTestFontId.length) { // align to 4 bytes boundary
+ checksum = (checksum - XXXX_VALUE +
+ int32(loadTestFontId + 'XXX', i)) | 0;
+ }
+ data = spliceString(data, CFF_CHECKSUM_OFFSET, 4, string32(checksum));
+
+ var url = 'url(data:font/opentype;base64,' + btoa(data) + ');';
+ var rule = '@font-face { font-family:"' + loadTestFontId + '";src:' +
+ url + '}';
+ FontLoader.insertRule(rule);
+
+ var names = [];
+ for (i = 0, ii = fonts.length; i < ii; i++) {
+ names.push(fonts[i].loadedName);
+ }
+ names.push(loadTestFontId);
+
+ var div = document.createElement('div');
+ div.setAttribute('style',
+ 'visibility: hidden;' +
+ 'width: 10px; height: 10px;' +
+ 'position: absolute; top: 0px; left: 0px;');
+ for (i = 0, ii = names.length; i < ii; ++i) {
+ var span = document.createElement('span');
+ span.textContent = 'Hi';
+ span.style.fontFamily = names[i];
+ div.appendChild(span);
+ }
+ document.body.appendChild(div);
+
+ isFontReady(loadTestFontId, function() {
+ document.body.removeChild(div);
+ request.complete();
+ });
+ /** Hack end */
+ }
+};
+
+var FontFaceObject = (function FontFaceObjectClosure() {
+ function FontFaceObject(name, file, properties) {
+ this.compiledGlyphs = {};
+ if (arguments.length === 1) {
+ // importing translated data
+ var data = arguments[0];
+ for (var i in data) {
+ this[i] = data[i];
+ }
+ return;
+ }
+ }
+ FontFaceObject.prototype = {
+ createNativeFontFace: function FontFaceObject_createNativeFontFace() {
+ if (!this.data) {
+ return null;
+ }
+
+ if (PDFJS.disableFontFace) {
+ this.disableFontFace = true;
+ return null;
+ }
+
+ var nativeFontFace = new FontFace(this.loadedName, this.data, {});
+
+ FontLoader.addNativeFontFace(nativeFontFace);
+
+ if (PDFJS.pdfBug && 'FontInspector' in globalScope &&
+ globalScope['FontInspector'].enabled) {
+ globalScope['FontInspector'].fontAdded(this);
+ }
+ return nativeFontFace;
+ },
+
+ bindDOM: function FontFaceObject_bindDOM() {
+ if (!this.data) {
+ return null;
+ }
+
+ if (PDFJS.disableFontFace) {
+ this.disableFontFace = true;
+ return null;
+ }
+
+ var data = bytesToString(new Uint8Array(this.data));
+ var fontName = this.loadedName;
+
+ // Add the font-face rule to the document
+ var url = ('url(data:' + this.mimetype + ';base64,' +
+ window.btoa(data) + ');');
+ var rule = '@font-face { font-family:"' + fontName + '";src:' + url + '}';
+ FontLoader.insertRule(rule);
+
+ if (PDFJS.pdfBug && 'FontInspector' in globalScope &&
+ globalScope['FontInspector'].enabled) {
+ globalScope['FontInspector'].fontAdded(this, url);
+ }
+
+ return rule;
+ },
+
+ getPathGenerator: function FontLoader_getPathGenerator(objs, character) {
+ if (!(character in this.compiledGlyphs)) {
+ var js = objs.get(this.loadedName + '_path_' + character);
+ /*jshint -W054 */
+ this.compiledGlyphs[character] = new Function('c', 'size', js);
+ }
+ return this.compiledGlyphs[character];
+ }
+ };
+ return FontFaceObject;
+})();
+
+
+var ANNOT_MIN_SIZE = 10; // px
+
+var AnnotationUtils = (function AnnotationUtilsClosure() {
+ // TODO(mack): This dupes some of the logic in CanvasGraphics.setFont()
+ function setTextStyles(element, item, fontObj) {
+
+ var style = element.style;
+ style.fontSize = item.fontSize + 'px';
+ style.direction = item.fontDirection < 0 ? 'rtl': 'ltr';
+
+ if (!fontObj) {
+ return;
+ }
+
+ style.fontWeight = fontObj.black ?
+ (fontObj.bold ? 'bolder' : 'bold') :
+ (fontObj.bold ? 'bold' : 'normal');
+ style.fontStyle = fontObj.italic ? 'italic' : 'normal';
+
+ var fontName = fontObj.loadedName;
+ var fontFamily = fontName ? '"' + fontName + '", ' : '';
+ // Use a reasonable default font if the font doesn't specify a fallback
+ var fallbackName = fontObj.fallbackName || 'Helvetica, sans-serif';
+ style.fontFamily = fontFamily + fallbackName;
+ }
+
+ function initContainer(item, drawBorder) {
+ var container = document.createElement('section');
+ var cstyle = container.style;
+ var width = item.rect[2] - item.rect[0];
+ var height = item.rect[3] - item.rect[1];
+
+ var bWidth = item.borderWidth || 0;
+ if (bWidth) {
+ width = width - 2 * bWidth;
+ height = height - 2 * bWidth;
+ cstyle.borderWidth = bWidth + 'px';
+ var color = item.color;
+ if (drawBorder && color) {
+ cstyle.borderStyle = 'solid';
+ cstyle.borderColor = Util.makeCssRgb(Math.round(color[0] * 255),
+ Math.round(color[1] * 255),
+ Math.round(color[2] * 255));
+ }
+ }
+ cstyle.width = width + 'px';
+ cstyle.height = height + 'px';
+ return container;
+ }
+
+ function getHtmlElementForTextWidgetAnnotation(item, commonObjs) {
+ var element = document.createElement('div');
+ var width = item.rect[2] - item.rect[0];
+ var height = item.rect[3] - item.rect[1];
+ element.style.width = width + 'px';
+ element.style.height = height + 'px';
+ element.style.display = 'table';
+
+ var content = document.createElement('div');
+ content.textContent = item.fieldValue;
+ var textAlignment = item.textAlignment;
+ content.style.textAlign = ['left', 'center', 'right'][textAlignment];
+ content.style.verticalAlign = 'middle';
+ content.style.display = 'table-cell';
+
+ var fontObj = item.fontRefName ?
+ commonObjs.getData(item.fontRefName) : null;
+ setTextStyles(content, item, fontObj);
+
+ element.appendChild(content);
+
+ return element;
+ }
+
+ function getHtmlElementForTextAnnotation(item) {
+ var rect = item.rect;
+
+ // sanity check because of OOo-generated PDFs
+ if ((rect[3] - rect[1]) < ANNOT_MIN_SIZE) {
+ rect[3] = rect[1] + ANNOT_MIN_SIZE;
+ }
+ if ((rect[2] - rect[0]) < ANNOT_MIN_SIZE) {
+ rect[2] = rect[0] + (rect[3] - rect[1]); // make it square
+ }
+
+ var container = initContainer(item, false);
+ container.className = 'annotText';
+
+ var image = document.createElement('img');
+ image.style.height = container.style.height;
+ image.style.width = container.style.width;
+ var iconName = item.name;
+ image.src = PDFJS.imageResourcesPath + 'annotation-' +
+ iconName.toLowerCase() + '.svg';
+ image.alt = '[{{type}} Annotation]';
+ image.dataset.l10nId = 'text_annotation_type';
+ image.dataset.l10nArgs = JSON.stringify({type: iconName});
+
+ var contentWrapper = document.createElement('div');
+ contentWrapper.className = 'annotTextContentWrapper';
+ contentWrapper.style.left = Math.floor(rect[2] - rect[0] + 5) + 'px';
+ contentWrapper.style.top = '-10px';
+
+ var content = document.createElement('div');
+ content.className = 'annotTextContent';
+ content.setAttribute('hidden', true);
+
+ var i, ii;
+ if (item.hasBgColor) {
+ var color = item.color;
+
+ // Enlighten the color (70%)
+ var BACKGROUND_ENLIGHT = 0.7;
+ var r = BACKGROUND_ENLIGHT * (1.0 - color[0]) + color[0];
+ var g = BACKGROUND_ENLIGHT * (1.0 - color[1]) + color[1];
+ var b = BACKGROUND_ENLIGHT * (1.0 - color[2]) + color[2];
+ content.style.backgroundColor = Util.makeCssRgb((r * 255) | 0,
+ (g * 255) | 0,
+ (b * 255) | 0);
+ }
+
+ var title = document.createElement('h1');
+ var text = document.createElement('p');
+ title.textContent = item.title;
+
+ if (!item.content && !item.title) {
+ content.setAttribute('hidden', true);
+ } else {
+ var e = document.createElement('span');
+ var lines = item.content.split(/(?:\r\n?|\n)/);
+ for (i = 0, ii = lines.length; i < ii; ++i) {
+ var line = lines[i];
+ e.appendChild(document.createTextNode(line));
+ if (i < (ii - 1)) {
+ e.appendChild(document.createElement('br'));
+ }
+ }
+ text.appendChild(e);
+
+ var pinned = false;
+
+ var showAnnotation = function showAnnotation(pin) {
+ if (pin) {
+ pinned = true;
+ }
+ if (content.hasAttribute('hidden')) {
+ container.style.zIndex += 1;
+ content.removeAttribute('hidden');
+ }
+ };
+
+ var hideAnnotation = function hideAnnotation(unpin) {
+ if (unpin) {
+ pinned = false;
+ }
+ if (!content.hasAttribute('hidden') && !pinned) {
+ container.style.zIndex -= 1;
+ content.setAttribute('hidden', true);
+ }
+ };
+
+ var toggleAnnotation = function toggleAnnotation() {
+ if (pinned) {
+ hideAnnotation(true);
+ } else {
+ showAnnotation(true);
+ }
+ };
+
+ image.addEventListener('click', function image_clickHandler() {
+ toggleAnnotation();
+ }, false);
+ image.addEventListener('mouseover', function image_mouseOverHandler() {
+ showAnnotation();
+ }, false);
+ image.addEventListener('mouseout', function image_mouseOutHandler() {
+ hideAnnotation();
+ }, false);
+
+ content.addEventListener('click', function content_clickHandler() {
+ hideAnnotation(true);
+ }, false);
+ }
+
+ content.appendChild(title);
+ content.appendChild(text);
+ contentWrapper.appendChild(content);
+ container.appendChild(image);
+ container.appendChild(contentWrapper);
+
+ return container;
+ }
+
+ function getHtmlElementForLinkAnnotation(item) {
+ var container = initContainer(item, true);
+ container.className = 'annotLink';
+
+ var link = document.createElement('a');
+ link.href = link.title = item.url || '';
+ if (item.url && PDFJS.openExternalLinksInNewWindow) {
+ link.target = '_blank';
+ }
+
+ container.appendChild(link);
+
+ return container;
+ }
+
+ function getHtmlElement(data, objs) {
+ switch (data.annotationType) {
+ case AnnotationType.WIDGET:
+ return getHtmlElementForTextWidgetAnnotation(data, objs);
+ case AnnotationType.TEXT:
+ return getHtmlElementForTextAnnotation(data);
+ case AnnotationType.LINK:
+ return getHtmlElementForLinkAnnotation(data);
+ default:
+ throw new Error('Unsupported annotationType: ' + data.annotationType);
+ }
+ }
+
+ return {
+ getHtmlElement: getHtmlElement
+ };
+})();
+PDFJS.AnnotationUtils = AnnotationUtils;
+
+
+var SVG_DEFAULTS = {
+ fontStyle: 'normal',
+ fontWeight: 'normal',
+ fillColor: '#000000'
+};
+
+var convertImgDataToPng = (function convertImgDataToPngClosure() {
+ var PNG_HEADER =
+ new Uint8Array([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a]);
+
+ var CHUNK_WRAPPER_SIZE = 12;
+
+ var crcTable = new Int32Array(256);
+ for (var i = 0; i < 256; i++) {
+ var c = i;
+ for (var h = 0; h < 8; h++) {
+ if (c & 1) {
+ c = 0xedB88320 ^ ((c >> 1) & 0x7fffffff);
+ } else {
+ c = (c >> 1) & 0x7fffffff;
+ }
+ }
+ crcTable[i] = c;
+ }
+
+ function crc32(data, start, end) {
+ var crc = -1;
+ for (var i = start; i < end; i++) {
+ var a = (crc ^ data[i]) & 0xff;
+ var b = crcTable[a];
+ crc = (crc >>> 8) ^ b;
+ }
+ return crc ^ -1;
+ }
+
+ function writePngChunk(type, body, data, offset) {
+ var p = offset;
+ var len = body.length;
+
+ data[p] = len >> 24 & 0xff;
+ data[p + 1] = len >> 16 & 0xff;
+ data[p + 2] = len >> 8 & 0xff;
+ data[p + 3] = len & 0xff;
+ p += 4;
+
+ data[p] = type.charCodeAt(0) & 0xff;
+ data[p + 1] = type.charCodeAt(1) & 0xff;
+ data[p + 2] = type.charCodeAt(2) & 0xff;
+ data[p + 3] = type.charCodeAt(3) & 0xff;
+ p += 4;
+
+ data.set(body, p);
+ p += body.length;
+
+ var crc = crc32(data, offset + 4, p);
+
+ data[p] = crc >> 24 & 0xff;
+ data[p + 1] = crc >> 16 & 0xff;
+ data[p + 2] = crc >> 8 & 0xff;
+ data[p + 3] = crc & 0xff;
+ }
+
+ function adler32(data, start, end) {
+ var a = 1;
+ var b = 0;
+ for (var i = start; i < end; ++i) {
+ a = (a + (data[i] & 0xff)) % 65521;
+ b = (b + a) % 65521;
+ }
+ return (b << 16) | a;
+ }
+
+ function encode(imgData, kind) {
+ var width = imgData.width;
+ var height = imgData.height;
+ var bitDepth, colorType, lineSize;
+ var bytes = imgData.data;
+
+ switch (kind) {
+ case ImageKind.GRAYSCALE_1BPP:
+ colorType = 0;
+ bitDepth = 1;
+ lineSize = (width + 7) >> 3;
+ break;
+ case ImageKind.RGB_24BPP:
+ colorType = 2;
+ bitDepth = 8;
+ lineSize = width * 3;
+ break;
+ case ImageKind.RGBA_32BPP:
+ colorType = 6;
+ bitDepth = 8;
+ lineSize = width * 4;
+ break;
+ default:
+ throw new Error('invalid format');
+ }
+
+ // prefix every row with predictor 0
+ var literals = new Uint8Array((1 + lineSize) * height);
+ var offsetLiterals = 0, offsetBytes = 0;
+ var y, i;
+ for (y = 0; y < height; ++y) {
+ literals[offsetLiterals++] = 0; // no prediction
+ literals.set(bytes.subarray(offsetBytes, offsetBytes + lineSize),
+ offsetLiterals);
+ offsetBytes += lineSize;
+ offsetLiterals += lineSize;
+ }
+
+ if (kind === ImageKind.GRAYSCALE_1BPP) {
+ // inverting for B/W
+ offsetLiterals = 0;
+ for (y = 0; y < height; y++) {
+ offsetLiterals++; // skipping predictor
+ for (i = 0; i < lineSize; i++) {
+ literals[offsetLiterals++] ^= 0xFF;
+ }
+ }
+ }
+
+ var ihdr = new Uint8Array([
+ width >> 24 & 0xff,
+ width >> 16 & 0xff,
+ width >> 8 & 0xff,
+ width & 0xff,
+ height >> 24 & 0xff,
+ height >> 16 & 0xff,
+ height >> 8 & 0xff,
+ height & 0xff,
+ bitDepth, // bit depth
+ colorType, // color type
+ 0x00, // compression method
+ 0x00, // filter method
+ 0x00 // interlace method
+ ]);
+
+ var len = literals.length;
+ var maxBlockLength = 0xFFFF;
+
+ var deflateBlocks = Math.ceil(len / maxBlockLength);
+ var idat = new Uint8Array(2 + len + deflateBlocks * 5 + 4);
+ var pi = 0;
+ idat[pi++] = 0x78; // compression method and flags
+ idat[pi++] = 0x9c; // flags
+
+ var pos = 0;
+ while (len > maxBlockLength) {
+ // writing non-final DEFLATE blocks type 0 and length of 65535
+ idat[pi++] = 0x00;
+ idat[pi++] = 0xff;
+ idat[pi++] = 0xff;
+ idat[pi++] = 0x00;
+ idat[pi++] = 0x00;
+ idat.set(literals.subarray(pos, pos + maxBlockLength), pi);
+ pi += maxBlockLength;
+ pos += maxBlockLength;
+ len -= maxBlockLength;
+ }
+
+ // writing non-final DEFLATE blocks type 0
+ idat[pi++] = 0x01;
+ idat[pi++] = len & 0xff;
+ idat[pi++] = len >> 8 & 0xff;
+ idat[pi++] = (~len & 0xffff) & 0xff;
+ idat[pi++] = (~len & 0xffff) >> 8 & 0xff;
+ idat.set(literals.subarray(pos), pi);
+ pi += literals.length - pos;
+
+ var adler = adler32(literals, 0, literals.length); // checksum
+ idat[pi++] = adler >> 24 & 0xff;
+ idat[pi++] = adler >> 16 & 0xff;
+ idat[pi++] = adler >> 8 & 0xff;
+ idat[pi++] = adler & 0xff;
+
+ // PNG will consists: header, IHDR+data, IDAT+data, and IEND.
+ var pngLength = PNG_HEADER.length + (CHUNK_WRAPPER_SIZE * 3) +
+ ihdr.length + idat.length;
+ var data = new Uint8Array(pngLength);
+ var offset = 0;
+ data.set(PNG_HEADER, offset);
+ offset += PNG_HEADER.length;
+ writePngChunk('IHDR', ihdr, data, offset);
+ offset += CHUNK_WRAPPER_SIZE + ihdr.length;
+ writePngChunk('IDATA', idat, data, offset);
+ offset += CHUNK_WRAPPER_SIZE + idat.length;
+ writePngChunk('IEND', new Uint8Array(0), data, offset);
+
+ return PDFJS.createObjectURL(data, 'image/png');
+ }
+
+ return function convertImgDataToPng(imgData) {
+ var kind = (imgData.kind === undefined ?
+ ImageKind.GRAYSCALE_1BPP : imgData.kind);
+ return encode(imgData, kind);
+ };
+})();
+
+var SVGExtraState = (function SVGExtraStateClosure() {
+ function SVGExtraState() {
+ this.fontSizeScale = 1;
+ this.fontWeight = SVG_DEFAULTS.fontWeight;
+ this.fontSize = 0;
+
+ this.textMatrix = IDENTITY_MATRIX;
+ this.fontMatrix = FONT_IDENTITY_MATRIX;
+ this.leading = 0;
+
+ // Current point (in user coordinates)
+ this.x = 0;
+ this.y = 0;
+
+ // Start of text line (in text coordinates)
+ this.lineX = 0;
+ this.lineY = 0;
+
+ // Character and word spacing
+ this.charSpacing = 0;
+ this.wordSpacing = 0;
+ this.textHScale = 1;
+ this.textRise = 0;
+
+ // Default foreground and background colors
+ this.fillColor = SVG_DEFAULTS.fillColor;
+ this.strokeColor = '#000000';
+
+ this.fillAlpha = 1;
+ this.strokeAlpha = 1;
+ this.lineWidth = 1;
+ this.lineJoin = '';
+ this.lineCap = '';
+ this.miterLimit = 0;
+
+ this.dashArray = [];
+ this.dashPhase = 0;
+
+ this.dependencies = [];
+
+ // Clipping
+ this.clipId = '';
+ this.pendingClip = false;
+
+ this.maskId = '';
+ }
+
+ SVGExtraState.prototype = {
+ clone: function SVGExtraState_clone() {
+ return Object.create(this);
+ },
+ setCurrentPoint: function SVGExtraState_setCurrentPoint(x, y) {
+ this.x = x;
+ this.y = y;
+ }
+ };
+ return SVGExtraState;
+})();
+
+var SVGGraphics = (function SVGGraphicsClosure() {
+ function createScratchSVG(width, height) {
+ var NS = 'http://www.w3.org/2000/svg';
+ var svg = document.createElementNS(NS, 'svg:svg');
+ svg.setAttributeNS(null, 'version', '1.1');
+ svg.setAttributeNS(null, 'width', width + 'px');
+ svg.setAttributeNS(null, 'height', height + 'px');
+ svg.setAttributeNS(null, 'viewBox', '0 0 ' + width + ' ' + height);
+ return svg;
+ }
+
+ function opListToTree(opList) {
+ var opTree = [];
+ var tmp = [];
+ var opListLen = opList.length;
+
+ for (var x = 0; x < opListLen; x++) {
+ if (opList[x].fn === 'save') {
+ opTree.push({'fnId': 92, 'fn': 'group', 'items': []});
+ tmp.push(opTree);
+ opTree = opTree[opTree.length - 1].items;
+ continue;
+ }
+
+ if(opList[x].fn === 'restore') {
+ opTree = tmp.pop();
+ } else {
+ opTree.push(opList[x]);
+ }
+ }
+ return opTree;
+ }
+
+ /**
+ * Formats float number.
+ * @param value {number} number to format.
+ * @returns {string}
+ */
+ function pf(value) {
+ if (value === (value | 0)) { // integer number
+ return value.toString();
+ }
+ var s = value.toFixed(10);
+ var i = s.length - 1;
+ if (s[i] !== '0') {
+ return s;
+ }
+ // removing trailing zeros
+ do {
+ i--;
+ } while (s[i] === '0');
+ return s.substr(0, s[i] === '.' ? i : i + 1);
+ }
+
+ /**
+ * Formats transform matrix. The standard rotation, scale and translate
+ * matrices are replaced by their shorter forms, and for identity matrix
+ * returns empty string to save the memory.
+ * @param m {Array} matrix to format.
+ * @returns {string}
+ */
+ function pm(m) {
+ if (m[4] === 0 && m[5] === 0) {
+ if (m[1] === 0 && m[2] === 0) {
+ if (m[0] === 1 && m[3] === 1) {
+ return '';
+ }
+ return 'scale(' + pf(m[0]) + ' ' + pf(m[3]) + ')';
+ }
+ if (m[0] === m[3] && m[1] === -m[2]) {
+ var a = Math.acos(m[0]) * 180 / Math.PI;
+ return 'rotate(' + pf(a) + ')';
+ }
+ } else {
+ if (m[0] === 1 && m[1] === 0 && m[2] === 0 && m[3] === 1) {
+ return 'translate(' + pf(m[4]) + ' ' + pf(m[5]) + ')';
+ }
+ }
+ return 'matrix(' + pf(m[0]) + ' ' + pf(m[1]) + ' ' + pf(m[2]) + ' ' +
+ pf(m[3]) + ' ' + pf(m[4]) + ' ' + pf(m[5]) + ')';
+ }
+
+ function SVGGraphics(commonObjs, objs) {
+ this.current = new SVGExtraState();
+ this.transformMatrix = IDENTITY_MATRIX; // Graphics state matrix
+ this.transformStack = [];
+ this.extraStack = [];
+ this.commonObjs = commonObjs;
+ this.objs = objs;
+ this.pendingEOFill = false;
+
+ this.embedFonts = false;
+ this.embeddedFonts = {};
+ this.cssStyle = null;
+ }
+
+ var NS = 'http://www.w3.org/2000/svg';
+ var XML_NS = 'http://www.w3.org/XML/1998/namespace';
+ var XLINK_NS = 'http://www.w3.org/1999/xlink';
+ var LINE_CAP_STYLES = ['butt', 'round', 'square'];
+ var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];
+ var clipCount = 0;
+ var maskCount = 0;
+
+ SVGGraphics.prototype = {
+ save: function SVGGraphics_save() {
+ this.transformStack.push(this.transformMatrix);
+ var old = this.current;
+ this.extraStack.push(old);
+ this.current = old.clone();
+ },
+
+ restore: function SVGGraphics_restore() {
+ this.transformMatrix = this.transformStack.pop();
+ this.current = this.extraStack.pop();
+
+ this.tgrp = document.createElementNS(NS, 'svg:g');
+ this.tgrp.setAttributeNS(null, 'transform', pm(this.transformMatrix));
+ this.pgrp.appendChild(this.tgrp);
+ },
+
+ group: function SVGGraphics_group(items) {
+ this.save();
+ this.executeOpTree(items);
+ this.restore();
+ },
+
+ loadDependencies: function SVGGraphics_loadDependencies(operatorList) {
+ var fnArray = operatorList.fnArray;
+ var fnArrayLen = fnArray.length;
+ var argsArray = operatorList.argsArray;
+
+ var self = this;
+ for (var i = 0; i < fnArrayLen; i++) {
+ if (OPS.dependency === fnArray[i]) {
+ var deps = argsArray[i];
+ for (var n = 0, nn = deps.length; n < nn; n++) {
+ var obj = deps[n];
+ var common = obj.substring(0, 2) === 'g_';
+ var promise;
+ if (common) {
+ promise = new Promise(function(resolve) {
+ self.commonObjs.get(obj, resolve);
+ });
+ } else {
+ promise = new Promise(function(resolve) {
+ self.objs.get(obj, resolve);
+ });
+ }
+ this.current.dependencies.push(promise);
+ }
+ }
+ }
+ return Promise.all(this.current.dependencies);
+ },
+
+ transform: function SVGGraphics_transform(a, b, c, d, e, f) {
+ var transformMatrix = [a, b, c, d, e, f];
+ this.transformMatrix = PDFJS.Util.transform(this.transformMatrix,
+ transformMatrix);
+
+ this.tgrp = document.createElementNS(NS, 'svg:g');
+ this.tgrp.setAttributeNS(null, 'transform', pm(this.transformMatrix));
+ },
+
+ getSVG: function SVGGraphics_getSVG(operatorList, viewport) {
+ this.svg = createScratchSVG(viewport.width, viewport.height);
+ this.viewport = viewport;
+
+ return this.loadDependencies(operatorList).then(function () {
+ this.transformMatrix = IDENTITY_MATRIX;
+ this.pgrp = document.createElementNS(NS, 'svg:g'); // Parent group
+ this.pgrp.setAttributeNS(null, 'transform', pm(viewport.transform));
+ this.tgrp = document.createElementNS(NS, 'svg:g'); // Transform group
+ this.tgrp.setAttributeNS(null, 'transform', pm(this.transformMatrix));
+ this.defs = document.createElementNS(NS, 'svg:defs');
+ this.pgrp.appendChild(this.defs);
+ this.pgrp.appendChild(this.tgrp);
+ this.svg.appendChild(this.pgrp);
+ var opTree = this.convertOpList(operatorList);
+ this.executeOpTree(opTree);
+ return this.svg;
+ }.bind(this));
+ },
+
+ convertOpList: function SVGGraphics_convertOpList(operatorList) {
+ var argsArray = operatorList.argsArray;
+ var fnArray = operatorList.fnArray;
+ var fnArrayLen = fnArray.length;
+ var REVOPS = [];
+ var opList = [];
+
+ for (var op in OPS) {
+ REVOPS[OPS[op]] = op;
+ }
+
+ for (var x = 0; x < fnArrayLen; x++) {
+ var fnId = fnArray[x];
+ opList.push({'fnId' : fnId, 'fn': REVOPS[fnId], 'args': argsArray[x]});
+ }
+ return opListToTree(opList);
+ },
+
+ executeOpTree: function SVGGraphics_executeOpTree(opTree) {
+ var opTreeLen = opTree.length;
+ for(var x = 0; x < opTreeLen; x++) {
+ var fn = opTree[x].fn;
+ var fnId = opTree[x].fnId;
+ var args = opTree[x].args;
+
+ switch (fnId | 0) {
+ case OPS.beginText:
+ this.beginText();
+ break;
+ case OPS.setLeading:
+ this.setLeading(args);
+ break;
+ case OPS.setLeadingMoveText:
+ this.setLeadingMoveText(args[0], args[1]);
+ break;
+ case OPS.setFont:
+ this.setFont(args);
+ break;
+ case OPS.showText:
+ this.showText(args[0]);
+ break;
+ case OPS.showSpacedText:
+ this.showText(args[0]);
+ break;
+ case OPS.endText:
+ this.endText();
+ break;
+ case OPS.moveText:
+ this.moveText(args[0], args[1]);
+ break;
+ case OPS.setCharSpacing:
+ this.setCharSpacing(args[0]);
+ break;
+ case OPS.setWordSpacing:
+ this.setWordSpacing(args[0]);
+ break;
+ case OPS.setHScale:
+ this.setHScale(args[0]);
+ break;
+ case OPS.setTextMatrix:
+ this.setTextMatrix(args[0], args[1], args[2],
+ args[3], args[4], args[5]);
+ break;
+ case OPS.setLineWidth:
+ this.setLineWidth(args[0]);
+ break;
+ case OPS.setLineJoin:
+ this.setLineJoin(args[0]);
+ break;
+ case OPS.setLineCap:
+ this.setLineCap(args[0]);
+ break;
+ case OPS.setMiterLimit:
+ this.setMiterLimit(args[0]);
+ break;
+ case OPS.setFillRGBColor:
+ this.setFillRGBColor(args[0], args[1], args[2]);
+ break;
+ case OPS.setStrokeRGBColor:
+ this.setStrokeRGBColor(args[0], args[1], args[2]);
+ break;
+ case OPS.setDash:
+ this.setDash(args[0], args[1]);
+ break;
+ case OPS.setGState:
+ this.setGState(args[0]);
+ break;
+ case OPS.fill:
+ this.fill();
+ break;
+ case OPS.eoFill:
+ this.eoFill();
+ break;
+ case OPS.stroke:
+ this.stroke();
+ break;
+ case OPS.fillStroke:
+ this.fillStroke();
+ break;
+ case OPS.eoFillStroke:
+ this.eoFillStroke();
+ break;
+ case OPS.clip:
+ this.clip('nonzero');
+ break;
+ case OPS.eoClip:
+ this.clip('evenodd');
+ break;
+ case OPS.paintSolidColorImageMask:
+ this.paintSolidColorImageMask();
+ break;
+ case OPS.paintJpegXObject:
+ this.paintJpegXObject(args[0], args[1], args[2]);
+ break;
+ case OPS.paintImageXObject:
+ this.paintImageXObject(args[0]);
+ break;
+ case OPS.paintInlineImageXObject:
+ this.paintInlineImageXObject(args[0]);
+ break;
+ case OPS.paintImageMaskXObject:
+ this.paintImageMaskXObject(args[0]);
+ break;
+ case OPS.paintFormXObjectBegin:
+ this.paintFormXObjectBegin(args[0], args[1]);
+ break;
+ case OPS.paintFormXObjectEnd:
+ this.paintFormXObjectEnd();
+ break;
+ case OPS.closePath:
+ this.closePath();
+ break;
+ case OPS.closeStroke:
+ this.closeStroke();
+ break;
+ case OPS.closeFillStroke:
+ this.closeFillStroke();
+ break;
+ case OPS.nextLine:
+ this.nextLine();
+ break;
+ case OPS.transform:
+ this.transform(args[0], args[1], args[2], args[3],
+ args[4], args[5]);
+ break;
+ case OPS.constructPath:
+ this.constructPath(args[0], args[1]);
+ break;
+ case OPS.endPath:
+ this.endPath();
+ break;
+ case 92:
+ this.group(opTree[x].items);
+ break;
+ default:
+ warn('Unimplemented method '+ fn);
+ break;
+ }
+ }
+ },
+
+ setWordSpacing: function SVGGraphics_setWordSpacing(wordSpacing) {
+ this.current.wordSpacing = wordSpacing;
+ },
+
+ setCharSpacing: function SVGGraphics_setCharSpacing(charSpacing) {
+ this.current.charSpacing = charSpacing;
+ },
+
+ nextLine: function SVGGraphics_nextLine() {
+ this.moveText(0, this.current.leading);
+ },
+
+ setTextMatrix: function SVGGraphics_setTextMatrix(a, b, c, d, e, f) {
+ var current = this.current;
+ this.current.textMatrix = this.current.lineMatrix = [a, b, c, d, e, f];
+
+ this.current.x = this.current.lineX = 0;
+ this.current.y = this.current.lineY = 0;
+
+ current.xcoords = [];
+ current.tspan = document.createElementNS(NS, 'svg:tspan');
+ current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
+ current.tspan.setAttributeNS(null, 'font-size',
+ pf(current.fontSize) + 'px');
+ current.tspan.setAttributeNS(null, 'y', pf(-current.y));
+
+ current.txtElement = document.createElementNS(NS, 'svg:text');
+ current.txtElement.appendChild(current.tspan);
+ },
+
+ beginText: function SVGGraphics_beginText() {
+ this.current.x = this.current.lineX = 0;
+ this.current.y = this.current.lineY = 0;
+ this.current.textMatrix = IDENTITY_MATRIX;
+ this.current.lineMatrix = IDENTITY_MATRIX;
+ this.current.tspan = document.createElementNS(NS, 'svg:tspan');
+ this.current.txtElement = document.createElementNS(NS, 'svg:text');
+ this.current.txtgrp = document.createElementNS(NS, 'svg:g');
+ this.current.xcoords = [];
+ },
+
+ moveText: function SVGGraphics_moveText(x, y) {
+ var current = this.current;
+ this.current.x = this.current.lineX += x;
+ this.current.y = this.current.lineY += y;
+
+ current.xcoords = [];
+ current.tspan = document.createElementNS(NS, 'svg:tspan');
+ current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
+ current.tspan.setAttributeNS(null, 'font-size',
+ pf(current.fontSize) + 'px');
+ current.tspan.setAttributeNS(null, 'y', pf(-current.y));
+ },
+
+ showText: function SVGGraphics_showText(glyphs) {
+ var current = this.current;
+ var font = current.font;
+ var fontSize = current.fontSize;
+
+ if (fontSize === 0) {
+ return;
+ }
+
+ var charSpacing = current.charSpacing;
+ var wordSpacing = current.wordSpacing;
+ var fontDirection = current.fontDirection;
+ var textHScale = current.textHScale * fontDirection;
+ var glyphsLength = glyphs.length;
+ var vertical = font.vertical;
+ var widthAdvanceScale = fontSize * current.fontMatrix[0];
+
+ var x = 0, i;
+ for (i = 0; i < glyphsLength; ++i) {
+ var glyph = glyphs[i];
+ if (glyph === null) {
+ // word break
+ x += fontDirection * wordSpacing;
+ continue;
+ } else if (isNum(glyph)) {
+ x += -glyph * fontSize * 0.001;
+ continue;
+ }
+ current.xcoords.push(current.x + x * textHScale);
+
+ var width = glyph.width;
+ var character = glyph.fontChar;
+ var charWidth = width * widthAdvanceScale + charSpacing * fontDirection;
+ x += charWidth;
+
+ current.tspan.textContent += character;
+ }
+ if (vertical) {
+ current.y -= x * textHScale;
+ } else {
+ current.x += x * textHScale;
+ }
+
+ current.tspan.setAttributeNS(null, 'x',
+ current.xcoords.map(pf).join(' '));
+ current.tspan.setAttributeNS(null, 'y', pf(-current.y));
+ current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
+ current.tspan.setAttributeNS(null, 'font-size',
+ pf(current.fontSize) + 'px');
+ if (current.fontStyle !== SVG_DEFAULTS.fontStyle) {
+ current.tspan.setAttributeNS(null, 'font-style', current.fontStyle);
+ }
+ if (current.fontWeight !== SVG_DEFAULTS.fontWeight) {
+ current.tspan.setAttributeNS(null, 'font-weight', current.fontWeight);
+ }
+ if (current.fillColor !== SVG_DEFAULTS.fillColor) {
+ current.tspan.setAttributeNS(null, 'fill', current.fillColor);
+ }
+
+ current.txtElement.setAttributeNS(null, 'transform',
+ pm(current.textMatrix) +
+ ' scale(1, -1)' );
+ current.txtElement.setAttributeNS(XML_NS, 'xml:space', 'preserve');
+ current.txtElement.appendChild(current.tspan);
+ current.txtgrp.appendChild(current.txtElement);
+
+ this.tgrp.appendChild(current.txtElement);
+
+ },
+
+ setLeadingMoveText: function SVGGraphics_setLeadingMoveText(x, y) {
+ this.setLeading(-y);
+ this.moveText(x, y);
+ },
+
+ addFontStyle: function SVGGraphics_addFontStyle(fontObj) {
+ if (!this.cssStyle) {
+ this.cssStyle = document.createElementNS(NS, 'svg:style');
+ this.cssStyle.setAttributeNS(null, 'type', 'text/css');
+ this.defs.appendChild(this.cssStyle);
+ }
+
+ var url = PDFJS.createObjectURL(fontObj.data, fontObj.mimetype);
+ this.cssStyle.textContent +=
+ '@font-face { font-family: "' + fontObj.loadedName + '";' +
+ ' src: url(' + url + '); }\n';
+ },
+
+ setFont: function SVGGraphics_setFont(details) {
+ var current = this.current;
+ var fontObj = this.commonObjs.get(details[0]);
+ var size = details[1];
+ this.current.font = fontObj;
+
+ if (this.embedFonts && fontObj.data &&
+ !this.embeddedFonts[fontObj.loadedName]) {
+ this.addFontStyle(fontObj);
+ this.embeddedFonts[fontObj.loadedName] = fontObj;
+ }
+
+ current.fontMatrix = (fontObj.fontMatrix ?
+ fontObj.fontMatrix : FONT_IDENTITY_MATRIX);
+
+ var bold = fontObj.black ? (fontObj.bold ? 'bolder' : 'bold') :
+ (fontObj.bold ? 'bold' : 'normal');
+ var italic = fontObj.italic ? 'italic' : 'normal';
+
+ if (size < 0) {
+ size = -size;
+ current.fontDirection = -1;
+ } else {
+ current.fontDirection = 1;
+ }
+ current.fontSize = size;
+ current.fontFamily = fontObj.loadedName;
+ current.fontWeight = bold;
+ current.fontStyle = italic;
+
+ current.tspan = document.createElementNS(NS, 'svg:tspan');
+ current.tspan.setAttributeNS(null, 'y', pf(-current.y));
+ current.xcoords = [];
+ },
+
+ endText: function SVGGraphics_endText() {
+ if (this.current.pendingClip) {
+ this.cgrp.appendChild(this.tgrp);
+ this.pgrp.appendChild(this.cgrp);
+ } else {
+ this.pgrp.appendChild(this.tgrp);
+ }
+ this.tgrp = document.createElementNS(NS, 'svg:g');
+ this.tgrp.setAttributeNS(null, 'transform', pm(this.transformMatrix));
+ },
+
+ // Path properties
+ setLineWidth: function SVGGraphics_setLineWidth(width) {
+ this.current.lineWidth = width;
+ },
+ setLineCap: function SVGGraphics_setLineCap(style) {
+ this.current.lineCap = LINE_CAP_STYLES[style];
+ },
+ setLineJoin: function SVGGraphics_setLineJoin(style) {
+ this.current.lineJoin = LINE_JOIN_STYLES[style];
+ },
+ setMiterLimit: function SVGGraphics_setMiterLimit(limit) {
+ this.current.miterLimit = limit;
+ },
+ setStrokeRGBColor: function SVGGraphics_setStrokeRGBColor(r, g, b) {
+ var color = Util.makeCssRgb(r, g, b);
+ this.current.strokeColor = color;
+ },
+ setFillRGBColor: function SVGGraphics_setFillRGBColor(r, g, b) {
+ var color = Util.makeCssRgb(r, g, b);
+ this.current.fillColor = color;
+ this.current.tspan = document.createElementNS(NS, 'svg:tspan');
+ this.current.xcoords = [];
+ },
+ setDash: function SVGGraphics_setDash(dashArray, dashPhase) {
+ this.current.dashArray = dashArray;
+ this.current.dashPhase = dashPhase;
+ },
+
+ constructPath: function SVGGraphics_constructPath(ops, args) {
+ var current = this.current;
+ var x = current.x, y = current.y;
+ current.path = document.createElementNS(NS, 'svg:path');
+ var d = [];
+ var opLength = ops.length;
+
+ for (var i = 0, j = 0; i < opLength; i++) {
+ switch (ops[i] | 0) {
+ case OPS.rectangle:
+ x = args[j++];
+ y = args[j++];
+ var width = args[j++];
+ var height = args[j++];
+ var xw = x + width;
+ var yh = y + height;
+ d.push('M', pf(x), pf(y), 'L', pf(xw) , pf(y), 'L', pf(xw), pf(yh),
+ 'L', pf(x), pf(yh), 'Z');
+ break;
+ case OPS.moveTo:
+ x = args[j++];
+ y = args[j++];
+ d.push('M', pf(x), pf(y));
+ break;
+ case OPS.lineTo:
+ x = args[j++];
+ y = args[j++];
+ d.push('L', pf(x) , pf(y));
+ break;
+ case OPS.curveTo:
+ x = args[j + 4];
+ y = args[j + 5];
+ d.push('C', pf(args[j]), pf(args[j + 1]), pf(args[j + 2]),
+ pf(args[j + 3]), pf(x), pf(y));
+ j += 6;
+ break;
+ case OPS.curveTo2:
+ x = args[j + 2];
+ y = args[j + 3];
+ d.push('C', pf(x), pf(y), pf(args[j]), pf(args[j + 1]),
+ pf(args[j + 2]), pf(args[j + 3]));
+ j += 4;
+ break;
+ case OPS.curveTo3:
+ x = args[j + 2];
+ y = args[j + 3];
+ d.push('C', pf(args[j]), pf(args[j + 1]), pf(x), pf(y),
+ pf(x), pf(y));
+ j += 4;
+ break;
+ case OPS.closePath:
+ d.push('Z');
+ break;
+ }
+ }
+ current.path.setAttributeNS(null, 'd', d.join(' '));
+ current.path.setAttributeNS(null, 'stroke-miterlimit',
+ pf(current.miterLimit));
+ current.path.setAttributeNS(null, 'stroke-linecap', current.lineCap);
+ current.path.setAttributeNS(null, 'stroke-linejoin', current.lineJoin);
+ current.path.setAttributeNS(null, 'stroke-width',
+ pf(current.lineWidth) + 'px');
+ current.path.setAttributeNS(null, 'stroke-dasharray',
+ current.dashArray.map(pf).join(' '));
+ current.path.setAttributeNS(null, 'stroke-dashoffset',
+ pf(current.dashPhase) + 'px');
+ current.path.setAttributeNS(null, 'fill', 'none');
+
+ this.tgrp.appendChild(current.path);
+ if (current.pendingClip) {
+ this.cgrp.appendChild(this.tgrp);
+ this.pgrp.appendChild(this.cgrp);
+ } else {
+ this.pgrp.appendChild(this.tgrp);
+ }
+ // Saving a reference in current.element so that it can be addressed
+ // in 'fill' and 'stroke'
+ current.element = current.path;
+ current.setCurrentPoint(x, y);
+ },
+
+ endPath: function SVGGraphics_endPath() {
+ var current = this.current;
+ if (current.pendingClip) {
+ this.cgrp.appendChild(this.tgrp);
+ this.pgrp.appendChild(this.cgrp);
+ } else {
+ this.pgrp.appendChild(this.tgrp);
+ }
+ this.tgrp = document.createElementNS(NS, 'svg:g');
+ this.tgrp.setAttributeNS(null, 'transform', pm(this.transformMatrix));
+ },
+
+ clip: function SVGGraphics_clip(type) {
+ var current = this.current;
+ // Add current path to clipping path
+ current.clipId = 'clippath' + clipCount;
+ clipCount++;
+ this.clippath = document.createElementNS(NS, 'svg:clipPath');
+ this.clippath.setAttributeNS(null, 'id', current.clipId);
+ var clipElement = current.element.cloneNode();
+ if (type === 'evenodd') {
+ clipElement.setAttributeNS(null, 'clip-rule', 'evenodd');
+ } else {
+ clipElement.setAttributeNS(null, 'clip-rule', 'nonzero');
+ }
+ this.clippath.setAttributeNS(null, 'transform', pm(this.transformMatrix));
+ this.clippath.appendChild(clipElement);
+ this.defs.appendChild(this.clippath);
+
+ // Create a new group with that attribute
+ current.pendingClip = true;
+ this.cgrp = document.createElementNS(NS, 'svg:g');
+ this.cgrp.setAttributeNS(null, 'clip-path',
+ 'url(#' + current.clipId + ')');
+ this.pgrp.appendChild(this.cgrp);
+ },
+
+ closePath: function SVGGraphics_closePath() {
+ var current = this.current;
+ var d = current.path.getAttributeNS(null, 'd');
+ d += 'Z';
+ current.path.setAttributeNS(null, 'd', d);
+ },
+
+ setLeading: function SVGGraphics_setLeading(leading) {
+ this.current.leading = -leading;
+ },
+
+ setTextRise: function SVGGraphics_setTextRise(textRise) {
+ this.current.textRise = textRise;
+ },
+
+ setHScale: function SVGGraphics_setHScale(scale) {
+ this.current.textHScale = scale / 100;
+ },
+
+ setGState: function SVGGraphics_setGState(states) {
+ for (var i = 0, ii = states.length; i < ii; i++) {
+ var state = states[i];
+ var key = state[0];
+ var value = state[1];
+
+ switch (key) {
+ case 'LW':
+ this.setLineWidth(value);
+ break;
+ case 'LC':
+ this.setLineCap(value);
+ break;
+ case 'LJ':
+ this.setLineJoin(value);
+ break;
+ case 'ML':
+ this.setMiterLimit(value);
+ break;
+ case 'D':
+ this.setDash(value[0], value[1]);
+ break;
+ case 'RI':
+ break;
+ case 'FL':
+ break;
+ case 'Font':
+ this.setFont(value);
+ break;
+ case 'CA':
+ break;
+ case 'ca':
+ break;
+ case 'BM':
+ break;
+ case 'SMask':
+ break;
+ }
+ }
+ },
+
+ fill: function SVGGraphics_fill() {
+ var current = this.current;
+ current.element.setAttributeNS(null, 'fill', current.fillColor);
+ },
+
+ stroke: function SVGGraphics_stroke() {
+ var current = this.current;
+ current.element.setAttributeNS(null, 'stroke', current.strokeColor);
+ current.element.setAttributeNS(null, 'fill', 'none');
+ },
+
+ eoFill: function SVGGraphics_eoFill() {
+ var current = this.current;
+ current.element.setAttributeNS(null, 'fill', current.fillColor);
+ current.element.setAttributeNS(null, 'fill-rule', 'evenodd');
+ },
+
+ fillStroke: function SVGGraphics_fillStroke() {
+ // Order is important since stroke wants fill to be none.
+ // First stroke, then if fill needed, it will be overwritten.
+ this.stroke();
+ this.fill();
+ },
+
+ eoFillStroke: function SVGGraphics_eoFillStroke() {
+ this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');
+ this.fillStroke();
+ },
+
+ closeStroke: function SVGGraphics_closeStroke() {
+ this.closePath();
+ this.stroke();
+ },
+
+ closeFillStroke: function SVGGraphics_closeFillStroke() {
+ this.closePath();
+ this.fillStroke();
+ },
+
+ paintSolidColorImageMask:
+ function SVGGraphics_paintSolidColorImageMask() {
+ var current = this.current;
+ var rect = document.createElementNS(NS, 'svg:rect');
+ rect.setAttributeNS(null, 'x', '0');
+ rect.setAttributeNS(null, 'y', '0');
+ rect.setAttributeNS(null, 'width', '1px');
+ rect.setAttributeNS(null, 'height', '1px');
+ rect.setAttributeNS(null, 'fill', current.fillColor);
+ this.tgrp.appendChild(rect);
+ },
+
+ paintJpegXObject: function SVGGraphics_paintJpegXObject(objId, w, h) {
+ var current = this.current;
+ var imgObj = this.objs.get(objId);
+ var imgEl = document.createElementNS(NS, 'svg:image');
+ imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgObj.src);
+ imgEl.setAttributeNS(null, 'width', imgObj.width + 'px');
+ imgEl.setAttributeNS(null, 'height', imgObj.height + 'px');
+ imgEl.setAttributeNS(null, 'x', '0');
+ imgEl.setAttributeNS(null, 'y', pf(-h));
+ imgEl.setAttributeNS(null, 'transform',
+ 'scale(' + pf(1 / w) + ' ' + pf(-1 / h) + ')');
+
+ this.tgrp.appendChild(imgEl);
+ if (current.pendingClip) {
+ this.cgrp.appendChild(this.tgrp);
+ this.pgrp.appendChild(this.cgrp);
+ } else {
+ this.pgrp.appendChild(this.tgrp);
+ }
+ },
+
+ paintImageXObject: function SVGGraphics_paintImageXObject(objId) {
+ var imgData = this.objs.get(objId);
+ if (!imgData) {
+ warn('Dependent image isn\'t ready yet');
+ return;
+ }
+ this.paintInlineImageXObject(imgData);
+ },
+
+ paintInlineImageXObject:
+ function SVGGraphics_paintInlineImageXObject(imgData, mask) {
+ var current = this.current;
+ var width = imgData.width;
+ var height = imgData.height;
+
+ var imgSrc = convertImgDataToPng(imgData);
+ var cliprect = document.createElementNS(NS, 'svg:rect');
+ cliprect.setAttributeNS(null, 'x', '0');
+ cliprect.setAttributeNS(null, 'y', '0');
+ cliprect.setAttributeNS(null, 'width', pf(width));
+ cliprect.setAttributeNS(null, 'height', pf(height));
+ current.element = cliprect;
+ this.clip('nonzero');
+ var imgEl = document.createElementNS(NS, 'svg:image');
+ imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgSrc);
+ imgEl.setAttributeNS(null, 'x', '0');
+ imgEl.setAttributeNS(null, 'y', pf(-height));
+ imgEl.setAttributeNS(null, 'width', pf(width) + 'px');
+ imgEl.setAttributeNS(null, 'height', pf(height) + 'px');
+ imgEl.setAttributeNS(null, 'transform',
+ 'scale(' + pf(1 / width) + ' ' +
+ pf(-1 / height) + ')');
+ if (mask) {
+ mask.appendChild(imgEl);
+ } else {
+ this.tgrp.appendChild(imgEl);
+ }
+ if (current.pendingClip) {
+ this.cgrp.appendChild(this.tgrp);
+ this.pgrp.appendChild(this.cgrp);
+ } else {
+ this.pgrp.appendChild(this.tgrp);
+ }
+ },
+
+ paintImageMaskXObject:
+ function SVGGraphics_paintImageMaskXObject(imgData) {
+ var current = this.current;
+ var width = imgData.width;
+ var height = imgData.height;
+ var fillColor = current.fillColor;
+
+ current.maskId = 'mask' + maskCount++;
+ var mask = document.createElementNS(NS, 'svg:mask');
+ mask.setAttributeNS(null, 'id', current.maskId);
+
+ var rect = document.createElementNS(NS, 'svg:rect');
+ rect.setAttributeNS(null, 'x', '0');
+ rect.setAttributeNS(null, 'y', '0');
+ rect.setAttributeNS(null, 'width', pf(width));
+ rect.setAttributeNS(null, 'height', pf(height));
+ rect.setAttributeNS(null, 'fill', fillColor);
+ rect.setAttributeNS(null, 'mask', 'url(#' + current.maskId +')');
+ this.defs.appendChild(mask);
+ this.tgrp.appendChild(rect);
+
+ this.paintInlineImageXObject(imgData, mask);
+ },
+
+ paintFormXObjectBegin:
+ function SVGGraphics_paintFormXObjectBegin(matrix, bbox) {
+ this.save();
+
+ if (isArray(matrix) && matrix.length === 6) {
+ this.transform(matrix[0], matrix[1], matrix[2],
+ matrix[3], matrix[4], matrix[5]);
+ }
+
+ if (isArray(bbox) && bbox.length === 4) {
+ var width = bbox[2] - bbox[0];
+ var height = bbox[3] - bbox[1];
+
+ var cliprect = document.createElementNS(NS, 'svg:rect');
+ cliprect.setAttributeNS(null, 'x', bbox[0]);
+ cliprect.setAttributeNS(null, 'y', bbox[1]);
+ cliprect.setAttributeNS(null, 'width', pf(width));
+ cliprect.setAttributeNS(null, 'height', pf(height));
+ this.current.element = cliprect;
+ this.clip('nonzero');
+ this.endPath();
+ }
+ },
+
+ paintFormXObjectEnd:
+ function SVGGraphics_paintFormXObjectEnd() {
+ this.restore();
+ }
+ };
+ return SVGGraphics;
+})();
+
+PDFJS.SVGGraphics = SVGGraphics;
+
+
+}).call((typeof window === 'undefined') ? this : window);
+
+if (!PDFJS.workerSrc && typeof document !== 'undefined') {
+ // workerSrc is not set -- using last script url to define default location
+ PDFJS.workerSrc = (function () {
+ 'use strict';
+ var scriptTagContainer = document.body ||
+ document.getElementsByTagName('head')[0];
+ var pdfjsSrc = scriptTagContainer.lastChild.src;
+ return pdfjsSrc && pdfjsSrc.replace(/\.js$/i, '.worker.js');
+ })();
+}
+
+
diff --git a/public/pdf.worker.js b/public/pdf.worker.js
new file mode 100644
index 0000000..c1e812e
--- /dev/null
+++ b/public/pdf.worker.js
@@ -0,0 +1,39321 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+/* Copyright 2012 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*jshint globalstrict: false */
+/* globals PDFJS */
+
+// Initializing PDFJS global object (if still undefined)
+if (typeof PDFJS === 'undefined') {
+ (typeof window !== 'undefined' ? window : this).PDFJS = {};
+}
+
+PDFJS.version = '1.1.114';
+PDFJS.build = '3fd44fd';
+
+(function pdfjsWrapper() {
+ // Use strict in our context only - users might not want it
+ 'use strict';
+
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+/* Copyright 2012 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/* globals Cmd, ColorSpace, Dict, MozBlobBuilder, Name, PDFJS, Ref, URL,
+ Promise */
+
+'use strict';
+
+var globalScope = (typeof window === 'undefined') ? this : window;
+
+var isWorker = (typeof window === 'undefined');
+
+var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
+
+var TextRenderingMode = {
+ FILL: 0,
+ STROKE: 1,
+ FILL_STROKE: 2,
+ INVISIBLE: 3,
+ FILL_ADD_TO_PATH: 4,
+ STROKE_ADD_TO_PATH: 5,
+ FILL_STROKE_ADD_TO_PATH: 6,
+ ADD_TO_PATH: 7,
+ FILL_STROKE_MASK: 3,
+ ADD_TO_PATH_FLAG: 4
+};
+
+var ImageKind = {
+ GRAYSCALE_1BPP: 1,
+ RGB_24BPP: 2,
+ RGBA_32BPP: 3
+};
+
+var AnnotationType = {
+ WIDGET: 1,
+ TEXT: 2,
+ LINK: 3
+};
+
+var StreamType = {
+ UNKNOWN: 0,
+ FLATE: 1,
+ LZW: 2,
+ DCT: 3,
+ JPX: 4,
+ JBIG: 5,
+ A85: 6,
+ AHX: 7,
+ CCF: 8,
+ RL: 9
+};
+
+var FontType = {
+ UNKNOWN: 0,
+ TYPE1: 1,
+ TYPE1C: 2,
+ CIDFONTTYPE0: 3,
+ CIDFONTTYPE0C: 4,
+ TRUETYPE: 5,
+ CIDFONTTYPE2: 6,
+ TYPE3: 7,
+ OPENTYPE: 8,
+ TYPE0: 9,
+ MMTYPE1: 10
+};
+
+// The global PDFJS object exposes the API
+// In production, it will be declared outside a global wrapper
+// In development, it will be declared here
+if (!globalScope.PDFJS) {
+ globalScope.PDFJS = {};
+}
+
+globalScope.PDFJS.pdfBug = false;
+
+PDFJS.VERBOSITY_LEVELS = {
+ errors: 0,
+ warnings: 1,
+ infos: 5
+};
+
+// All the possible operations for an operator list.
+var OPS = PDFJS.OPS = {
+ // Intentionally start from 1 so it is easy to spot bad operators that will be
+ // 0's.
+ dependency: 1,
+ setLineWidth: 2,
+ setLineCap: 3,
+ setLineJoin: 4,
+ setMiterLimit: 5,
+ setDash: 6,
+ setRenderingIntent: 7,
+ setFlatness: 8,
+ setGState: 9,
+ save: 10,
+ restore: 11,
+ transform: 12,
+ moveTo: 13,
+ lineTo: 14,
+ curveTo: 15,
+ curveTo2: 16,
+ curveTo3: 17,
+ closePath: 18,
+ rectangle: 19,
+ stroke: 20,
+ closeStroke: 21,
+ fill: 22,
+ eoFill: 23,
+ fillStroke: 24,
+ eoFillStroke: 25,
+ closeFillStroke: 26,
+ closeEOFillStroke: 27,
+ endPath: 28,
+ clip: 29,
+ eoClip: 30,
+ beginText: 31,
+ endText: 32,
+ setCharSpacing: 33,
+ setWordSpacing: 34,
+ setHScale: 35,
+ setLeading: 36,
+ setFont: 37,
+ setTextRenderingMode: 38,
+ setTextRise: 39,
+ moveText: 40,
+ setLeadingMoveText: 41,
+ setTextMatrix: 42,
+ nextLine: 43,
+ showText: 44,
+ showSpacedText: 45,
+ nextLineShowText: 46,
+ nextLineSetSpacingShowText: 47,
+ setCharWidth: 48,
+ setCharWidthAndBounds: 49,
+ setStrokeColorSpace: 50,
+ setFillColorSpace: 51,
+ setStrokeColor: 52,
+ setStrokeColorN: 53,
+ setFillColor: 54,
+ setFillColorN: 55,
+ setStrokeGray: 56,
+ setFillGray: 57,
+ setStrokeRGBColor: 58,
+ setFillRGBColor: 59,
+ setStrokeCMYKColor: 60,
+ setFillCMYKColor: 61,
+ shadingFill: 62,
+ beginInlineImage: 63,
+ beginImageData: 64,
+ endInlineImage: 65,
+ paintXObject: 66,
+ markPoint: 67,
+ markPointProps: 68,
+ beginMarkedContent: 69,
+ beginMarkedContentProps: 70,
+ endMarkedContent: 71,
+ beginCompat: 72,
+ endCompat: 73,
+ paintFormXObjectBegin: 74,
+ paintFormXObjectEnd: 75,
+ beginGroup: 76,
+ endGroup: 77,
+ beginAnnotations: 78,
+ endAnnotations: 79,
+ beginAnnotation: 80,
+ endAnnotation: 81,
+ paintJpegXObject: 82,
+ paintImageMaskXObject: 83,
+ paintImageMaskXObjectGroup: 84,
+ paintImageXObject: 85,
+ paintInlineImageXObject: 86,
+ paintInlineImageXObjectGroup: 87,
+ paintImageXObjectRepeat: 88,
+ paintImageMaskXObjectRepeat: 89,
+ paintSolidColorImageMask: 90,
+ constructPath: 91
+};
+
+// A notice for devs. These are good for things that are helpful to devs, such
+// as warning that Workers were disabled, which is important to devs but not
+// end users.
+function info(msg) {
+ if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.infos) {
+ console.log('Info: ' + msg);
+ }
+}
+
+// Non-fatal warnings.
+function warn(msg) {
+ if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.warnings) {
+ console.log('Warning: ' + msg);
+ }
+}
+
+// Fatal errors that should trigger the fallback UI and halt execution by
+// throwing an exception.
+function error(msg) {
+ if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.errors) {
+ console.log('Error: ' + msg);
+ console.log(backtrace());
+ }
+ UnsupportedManager.notify(UNSUPPORTED_FEATURES.unknown);
+ throw new Error(msg);
+}
+
+function backtrace() {
+ try {
+ throw new Error();
+ } catch (e) {
+ return e.stack ? e.stack.split('\n').slice(2).join('\n') : '';
+ }
+}
+
+function assert(cond, msg) {
+ if (!cond) {
+ error(msg);
+ }
+}
+
+var UNSUPPORTED_FEATURES = PDFJS.UNSUPPORTED_FEATURES = {
+ unknown: 'unknown',
+ forms: 'forms',
+ javaScript: 'javaScript',
+ smask: 'smask',
+ shadingPattern: 'shadingPattern',
+ font: 'font'
+};
+
+var UnsupportedManager = PDFJS.UnsupportedManager =
+ (function UnsupportedManagerClosure() {
+ var listeners = [];
+ return {
+ listen: function (cb) {
+ listeners.push(cb);
+ },
+ notify: function (featureId) {
+ warn('Unsupported feature "' + featureId + '"');
+ for (var i = 0, ii = listeners.length; i < ii; i++) {
+ listeners[i](featureId);
+ }
+ }
+ };
+})();
+
+// Combines two URLs. The baseUrl shall be absolute URL. If the url is an
+// absolute URL, it will be returned as is.
+function combineUrl(baseUrl, url) {
+ if (!url) {
+ return baseUrl;
+ }
+ if (/^[a-z][a-z0-9+\-.]*:/i.test(url)) {
+ return url;
+ }
+ var i;
+ if (url.charAt(0) === '/') {
+ // absolute path
+ i = baseUrl.indexOf('://');
+ if (url.charAt(1) === '/') {
+ ++i;
+ } else {
+ i = baseUrl.indexOf('/', i + 3);
+ }
+ return baseUrl.substring(0, i) + url;
+ } else {
+ // relative path
+ var pathLength = baseUrl.length;
+ i = baseUrl.lastIndexOf('#');
+ pathLength = i >= 0 ? i : pathLength;
+ i = baseUrl.lastIndexOf('?', pathLength);
+ pathLength = i >= 0 ? i : pathLength;
+ var prefixLength = baseUrl.lastIndexOf('/', pathLength);
+ return baseUrl.substring(0, prefixLength + 1) + url;
+ }
+}
+
+// Validates if URL is safe and allowed, e.g. to avoid XSS.
+function isValidUrl(url, allowRelative) {
+ if (!url) {
+ return false;
+ }
+ // RFC 3986 (http://tools.ietf.org/html/rfc3986#section-3.1)
+ // scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
+ var protocol = /^[a-z][a-z0-9+\-.]*(?=:)/i.exec(url);
+ if (!protocol) {
+ return allowRelative;
+ }
+ protocol = protocol[0].toLowerCase();
+ switch (protocol) {
+ case 'http':
+ case 'https':
+ case 'ftp':
+ case 'mailto':
+ case 'tel':
+ return true;
+ default:
+ return false;
+ }
+}
+PDFJS.isValidUrl = isValidUrl;
+
+function shadow(obj, prop, value) {
+ Object.defineProperty(obj, prop, { value: value,
+ enumerable: true,
+ configurable: true,
+ writable: false });
+ return value;
+}
+PDFJS.shadow = shadow;
+
+var PasswordResponses = PDFJS.PasswordResponses = {
+ NEED_PASSWORD: 1,
+ INCORRECT_PASSWORD: 2
+};
+
+var PasswordException = (function PasswordExceptionClosure() {
+ function PasswordException(msg, code) {
+ this.name = 'PasswordException';
+ this.message = msg;
+ this.code = code;
+ }
+
+ PasswordException.prototype = new Error();
+ PasswordException.constructor = PasswordException;
+
+ return PasswordException;
+})();
+PDFJS.PasswordException = PasswordException;
+
+var UnknownErrorException = (function UnknownErrorExceptionClosure() {
+ function UnknownErrorException(msg, details) {
+ this.name = 'UnknownErrorException';
+ this.message = msg;
+ this.details = details;
+ }
+
+ UnknownErrorException.prototype = new Error();
+ UnknownErrorException.constructor = UnknownErrorException;
+
+ return UnknownErrorException;
+})();
+PDFJS.UnknownErrorException = UnknownErrorException;
+
+var InvalidPDFException = (function InvalidPDFExceptionClosure() {
+ function InvalidPDFException(msg) {
+ this.name = 'InvalidPDFException';
+ this.message = msg;
+ }
+
+ InvalidPDFException.prototype = new Error();
+ InvalidPDFException.constructor = InvalidPDFException;
+
+ return InvalidPDFException;
+})();
+PDFJS.InvalidPDFException = InvalidPDFException;
+
+var MissingPDFException = (function MissingPDFExceptionClosure() {
+ function MissingPDFException(msg) {
+ this.name = 'MissingPDFException';
+ this.message = msg;
+ }
+
+ MissingPDFException.prototype = new Error();
+ MissingPDFException.constructor = MissingPDFException;
+
+ return MissingPDFException;
+})();
+PDFJS.MissingPDFException = MissingPDFException;
+
+var UnexpectedResponseException =
+ (function UnexpectedResponseExceptionClosure() {
+ function UnexpectedResponseException(msg, status) {
+ this.name = 'UnexpectedResponseException';
+ this.message = msg;
+ this.status = status;
+ }
+
+ UnexpectedResponseException.prototype = new Error();
+ UnexpectedResponseException.constructor = UnexpectedResponseException;
+
+ return UnexpectedResponseException;
+})();
+PDFJS.UnexpectedResponseException = UnexpectedResponseException;
+
+var NotImplementedException = (function NotImplementedExceptionClosure() {
+ function NotImplementedException(msg) {
+ this.message = msg;
+ }
+
+ NotImplementedException.prototype = new Error();
+ NotImplementedException.prototype.name = 'NotImplementedException';
+ NotImplementedException.constructor = NotImplementedException;
+
+ return NotImplementedException;
+})();
+
+var MissingDataException = (function MissingDataExceptionClosure() {
+ function MissingDataException(begin, end) {
+ this.begin = begin;
+ this.end = end;
+ this.message = 'Missing data [' + begin + ', ' + end + ')';
+ }
+
+ MissingDataException.prototype = new Error();
+ MissingDataException.prototype.name = 'MissingDataException';
+ MissingDataException.constructor = MissingDataException;
+
+ return MissingDataException;
+})();
+
+var XRefParseException = (function XRefParseExceptionClosure() {
+ function XRefParseException(msg) {
+ this.message = msg;
+ }
+
+ XRefParseException.prototype = new Error();
+ XRefParseException.prototype.name = 'XRefParseException';
+ XRefParseException.constructor = XRefParseException;
+
+ return XRefParseException;
+})();
+
+
+function bytesToString(bytes) {
+ assert(bytes !== null && typeof bytes === 'object' &&
+ bytes.length !== undefined, 'Invalid argument for bytesToString');
+ var length = bytes.length;
+ var MAX_ARGUMENT_COUNT = 8192;
+ if (length < MAX_ARGUMENT_COUNT) {
+ return String.fromCharCode.apply(null, bytes);
+ }
+ var strBuf = [];
+ for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
+ var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
+ var chunk = bytes.subarray(i, chunkEnd);
+ strBuf.push(String.fromCharCode.apply(null, chunk));
+ }
+ return strBuf.join('');
+}
+
+function stringToBytes(str) {
+ assert(typeof str === 'string', 'Invalid argument for stringToBytes');
+ var length = str.length;
+ var bytes = new Uint8Array(length);
+ for (var i = 0; i < length; ++i) {
+ bytes[i] = str.charCodeAt(i) & 0xFF;
+ }
+ return bytes;
+}
+
+function string32(value) {
+ return String.fromCharCode((value >> 24) & 0xff, (value >> 16) & 0xff,
+ (value >> 8) & 0xff, value & 0xff);
+}
+
+function log2(x) {
+ var n = 1, i = 0;
+ while (x > n) {
+ n <<= 1;
+ i++;
+ }
+ return i;
+}
+
+function readInt8(data, start) {
+ return (data[start] << 24) >> 24;
+}
+
+function readUint16(data, offset) {
+ return (data[offset] << 8) | data[offset + 1];
+}
+
+function readUint32(data, offset) {
+ return ((data[offset] << 24) | (data[offset + 1] << 16) |
+ (data[offset + 2] << 8) | data[offset + 3]) >>> 0;
+}
+
+// Lazy test the endianness of the platform
+// NOTE: This will be 'true' for simulated TypedArrays
+function isLittleEndian() {
+ var buffer8 = new Uint8Array(2);
+ buffer8[0] = 1;
+ var buffer16 = new Uint16Array(buffer8.buffer);
+ return (buffer16[0] === 1);
+}
+
+Object.defineProperty(PDFJS, 'isLittleEndian', {
+ configurable: true,
+ get: function PDFJS_isLittleEndian() {
+ return shadow(PDFJS, 'isLittleEndian', isLittleEndian());
+ }
+});
+
+ // Lazy test if the userAgant support CanvasTypedArrays
+function hasCanvasTypedArrays() {
+ var canvas = document.createElement('canvas');
+ canvas.width = canvas.height = 1;
+ var ctx = canvas.getContext('2d');
+ var imageData = ctx.createImageData(1, 1);
+ return (typeof imageData.data.buffer !== 'undefined');
+}
+
+Object.defineProperty(PDFJS, 'hasCanvasTypedArrays', {
+ configurable: true,
+ get: function PDFJS_hasCanvasTypedArrays() {
+ return shadow(PDFJS, 'hasCanvasTypedArrays', hasCanvasTypedArrays());
+ }
+});
+
+var Uint32ArrayView = (function Uint32ArrayViewClosure() {
+
+ function Uint32ArrayView(buffer, length) {
+ this.buffer = buffer;
+ this.byteLength = buffer.length;
+ this.length = length === undefined ? (this.byteLength >> 2) : length;
+ ensureUint32ArrayViewProps(this.length);
+ }
+ Uint32ArrayView.prototype = Object.create(null);
+
+ var uint32ArrayViewSetters = 0;
+ function createUint32ArrayProp(index) {
+ return {
+ get: function () {
+ var buffer = this.buffer, offset = index << 2;
+ return (buffer[offset] | (buffer[offset + 1] << 8) |
+ (buffer[offset + 2] << 16) | (buffer[offset + 3] << 24)) >>> 0;
+ },
+ set: function (value) {
+ var buffer = this.buffer, offset = index << 2;
+ buffer[offset] = value & 255;
+ buffer[offset + 1] = (value >> 8) & 255;
+ buffer[offset + 2] = (value >> 16) & 255;
+ buffer[offset + 3] = (value >>> 24) & 255;
+ }
+ };
+ }
+
+ function ensureUint32ArrayViewProps(length) {
+ while (uint32ArrayViewSetters < length) {
+ Object.defineProperty(Uint32ArrayView.prototype,
+ uint32ArrayViewSetters,
+ createUint32ArrayProp(uint32ArrayViewSetters));
+ uint32ArrayViewSetters++;
+ }
+ }
+
+ return Uint32ArrayView;
+})();
+
+var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
+
+var Util = PDFJS.Util = (function UtilClosure() {
+ function Util() {}
+
+ var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];
+
+ // makeCssRgb() can be called thousands of times. Using |rgbBuf| avoids
+ // creating many intermediate strings.
+ Util.makeCssRgb = function Util_makeCssRgb(r, g, b) {
+ rgbBuf[1] = r;
+ rgbBuf[3] = g;
+ rgbBuf[5] = b;
+ return rgbBuf.join('');
+ };
+
+ // Concatenates two transformation matrices together and returns the result.
+ Util.transform = function Util_transform(m1, m2) {
+ return [
+ m1[0] * m2[0] + m1[2] * m2[1],
+ m1[1] * m2[0] + m1[3] * m2[1],
+ m1[0] * m2[2] + m1[2] * m2[3],
+ m1[1] * m2[2] + m1[3] * m2[3],
+ m1[0] * m2[4] + m1[2] * m2[5] + m1[4],
+ m1[1] * m2[4] + m1[3] * m2[5] + m1[5]
+ ];
+ };
+
+ // For 2d affine transforms
+ Util.applyTransform = function Util_applyTransform(p, m) {
+ var xt = p[0] * m[0] + p[1] * m[2] + m[4];
+ var yt = p[0] * m[1] + p[1] * m[3] + m[5];
+ return [xt, yt];
+ };
+
+ Util.applyInverseTransform = function Util_applyInverseTransform(p, m) {
+ var d = m[0] * m[3] - m[1] * m[2];
+ var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
+ var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
+ return [xt, yt];
+ };
+
+ // Applies the transform to the rectangle and finds the minimum axially
+ // aligned bounding box.
+ Util.getAxialAlignedBoundingBox =
+ function Util_getAxialAlignedBoundingBox(r, m) {
+
+ var p1 = Util.applyTransform(r, m);
+ var p2 = Util.applyTransform(r.slice(2, 4), m);
+ var p3 = Util.applyTransform([r[0], r[3]], m);
+ var p4 = Util.applyTransform([r[2], r[1]], m);
+ return [
+ Math.min(p1[0], p2[0], p3[0], p4[0]),
+ Math.min(p1[1], p2[1], p3[1], p4[1]),
+ Math.max(p1[0], p2[0], p3[0], p4[0]),
+ Math.max(p1[1], p2[1], p3[1], p4[1])
+ ];
+ };
+
+ Util.inverseTransform = function Util_inverseTransform(m) {
+ var d = m[0] * m[3] - m[1] * m[2];
+ return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d,
+ (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
+ };
+
+ // Apply a generic 3d matrix M on a 3-vector v:
+ // | a b c | | X |
+ // | d e f | x | Y |
+ // | g h i | | Z |
+ // M is assumed to be serialized as [a,b,c,d,e,f,g,h,i],
+ // with v as [X,Y,Z]
+ Util.apply3dTransform = function Util_apply3dTransform(m, v) {
+ return [
+ m[0] * v[0] + m[1] * v[1] + m[2] * v[2],
+ m[3] * v[0] + m[4] * v[1] + m[5] * v[2],
+ m[6] * v[0] + m[7] * v[1] + m[8] * v[2]
+ ];
+ };
+
+ // This calculation uses Singular Value Decomposition.
+ // The SVD can be represented with formula A = USV. We are interested in the
+ // matrix S here because it represents the scale values.
+ Util.singularValueDecompose2dScale =
+ function Util_singularValueDecompose2dScale(m) {
+
+ var transpose = [m[0], m[2], m[1], m[3]];
+
+ // Multiply matrix m with its transpose.
+ var a = m[0] * transpose[0] + m[1] * transpose[2];
+ var b = m[0] * transpose[1] + m[1] * transpose[3];
+ var c = m[2] * transpose[0] + m[3] * transpose[2];
+ var d = m[2] * transpose[1] + m[3] * transpose[3];
+
+ // Solve the second degree polynomial to get roots.
+ var first = (a + d) / 2;
+ var second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;
+ var sx = first + second || 1;
+ var sy = first - second || 1;
+
+ // Scale values are the square roots of the eigenvalues.
+ return [Math.sqrt(sx), Math.sqrt(sy)];
+ };
+
+ // Normalize rectangle rect=[x1, y1, x2, y2] so that (x1,y1) < (x2,y2)
+ // For coordinate systems whose origin lies in the bottom-left, this
+ // means normalization to (BL,TR) ordering. For systems with origin in the
+ // top-left, this means (TL,BR) ordering.
+ Util.normalizeRect = function Util_normalizeRect(rect) {
+ var r = rect.slice(0); // clone rect
+ if (rect[0] > rect[2]) {
+ r[0] = rect[2];
+ r[2] = rect[0];
+ }
+ if (rect[1] > rect[3]) {
+ r[1] = rect[3];
+ r[3] = rect[1];
+ }
+ return r;
+ };
+
+ // Returns a rectangle [x1, y1, x2, y2] corresponding to the
+ // intersection of rect1 and rect2. If no intersection, returns 'false'
+ // The rectangle coordinates of rect1, rect2 should be [x1, y1, x2, y2]
+ Util.intersect = function Util_intersect(rect1, rect2) {
+ function compare(a, b) {
+ return a - b;
+ }
+
+ // Order points along the axes
+ var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare),
+ orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare),
+ result = [];
+
+ rect1 = Util.normalizeRect(rect1);
+ rect2 = Util.normalizeRect(rect2);
+
+ // X: first and second points belong to different rectangles?
+ if ((orderedX[0] === rect1[0] && orderedX[1] === rect2[0]) ||
+ (orderedX[0] === rect2[0] && orderedX[1] === rect1[0])) {
+ // Intersection must be between second and third points
+ result[0] = orderedX[1];
+ result[2] = orderedX[2];
+ } else {
+ return false;
+ }
+
+ // Y: first and second points belong to different rectangles?
+ if ((orderedY[0] === rect1[1] && orderedY[1] === rect2[1]) ||
+ (orderedY[0] === rect2[1] && orderedY[1] === rect1[1])) {
+ // Intersection must be between second and third points
+ result[1] = orderedY[1];
+ result[3] = orderedY[2];
+ } else {
+ return false;
+ }
+
+ return result;
+ };
+
+ Util.sign = function Util_sign(num) {
+ return num < 0 ? -1 : 1;
+ };
+
+ Util.appendToArray = function Util_appendToArray(arr1, arr2) {
+ Array.prototype.push.apply(arr1, arr2);
+ };
+
+ Util.prependToArray = function Util_prependToArray(arr1, arr2) {
+ Array.prototype.unshift.apply(arr1, arr2);
+ };
+
+ Util.extendObj = function extendObj(obj1, obj2) {
+ for (var key in obj2) {
+ obj1[key] = obj2[key];
+ }
+ };
+
+ Util.getInheritableProperty = function Util_getInheritableProperty(dict,
+ name) {
+ while (dict && !dict.has(name)) {
+ dict = dict.get('Parent');
+ }
+ if (!dict) {
+ return null;
+ }
+ return dict.get(name);
+ };
+
+ Util.inherit = function Util_inherit(sub, base, prototype) {
+ sub.prototype = Object.create(base.prototype);
+ sub.prototype.constructor = sub;
+ for (var prop in prototype) {
+ sub.prototype[prop] = prototype[prop];
+ }
+ };
+
+ Util.loadScript = function Util_loadScript(src, callback) {
+ var script = document.createElement('script');
+ var loaded = false;
+ script.setAttribute('src', src);
+ if (callback) {
+ script.onload = function() {
+ if (!loaded) {
+ callback();
+ }
+ loaded = true;
+ };
+ }
+ document.getElementsByTagName('head')[0].appendChild(script);
+ };
+
+ return Util;
+})();
+
+/**
+ * PDF page viewport created based on scale, rotation and offset.
+ * @class
+ * @alias PDFJS.PageViewport
+ */
+var PageViewport = PDFJS.PageViewport = (function PageViewportClosure() {
+ /**
+ * @constructor
+ * @private
+ * @param viewBox {Array} xMin, yMin, xMax and yMax coordinates.
+ * @param scale {number} scale of the viewport.
+ * @param rotation {number} rotations of the viewport in degrees.
+ * @param offsetX {number} offset X
+ * @param offsetY {number} offset Y
+ * @param dontFlip {boolean} if true, axis Y will not be flipped.
+ */
+ function PageViewport(viewBox, scale, rotation, offsetX, offsetY, dontFlip) {
+ this.viewBox = viewBox;
+ this.scale = scale;
+ this.rotation = rotation;
+ this.offsetX = offsetX;
+ this.offsetY = offsetY;
+
+ // creating transform to convert pdf coordinate system to the normal
+ // canvas like coordinates taking in account scale and rotation
+ var centerX = (viewBox[2] + viewBox[0]) / 2;
+ var centerY = (viewBox[3] + viewBox[1]) / 2;
+ var rotateA, rotateB, rotateC, rotateD;
+ rotation = rotation % 360;
+ rotation = rotation < 0 ? rotation + 360 : rotation;
+ switch (rotation) {
+ case 180:
+ rotateA = -1; rotateB = 0; rotateC = 0; rotateD = 1;
+ break;
+ case 90:
+ rotateA = 0; rotateB = 1; rotateC = 1; rotateD = 0;
+ break;
+ case 270:
+ rotateA = 0; rotateB = -1; rotateC = -1; rotateD = 0;
+ break;
+ //case 0:
+ default:
+ rotateA = 1; rotateB = 0; rotateC = 0; rotateD = -1;
+ break;
+ }
+
+ if (dontFlip) {
+ rotateC = -rotateC; rotateD = -rotateD;
+ }
+
+ var offsetCanvasX, offsetCanvasY;
+ var width, height;
+ if (rotateA === 0) {
+ offsetCanvasX = Math.abs(centerY - viewBox[1]) * scale + offsetX;
+ offsetCanvasY = Math.abs(centerX - viewBox[0]) * scale + offsetY;
+ width = Math.abs(viewBox[3] - viewBox[1]) * scale;
+ height = Math.abs(viewBox[2] - viewBox[0]) * scale;
+ } else {
+ offsetCanvasX = Math.abs(centerX - viewBox[0]) * scale + offsetX;
+ offsetCanvasY = Math.abs(centerY - viewBox[1]) * scale + offsetY;
+ width = Math.abs(viewBox[2] - viewBox[0]) * scale;
+ height = Math.abs(viewBox[3] - viewBox[1]) * scale;
+ }
+ // creating transform for the following operations:
+ // translate(-centerX, -centerY), rotate and flip vertically,
+ // scale, and translate(offsetCanvasX, offsetCanvasY)
+ this.transform = [
+ rotateA * scale,
+ rotateB * scale,
+ rotateC * scale,
+ rotateD * scale,
+ offsetCanvasX - rotateA * scale * centerX - rotateC * scale * centerY,
+ offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY
+ ];
+
+ this.width = width;
+ this.height = height;
+ this.fontScale = scale;
+ }
+ PageViewport.prototype = /** @lends PDFJS.PageViewport.prototype */ {
+ /**
+ * Clones viewport with additional properties.
+ * @param args {Object} (optional) If specified, may contain the 'scale' or
+ * 'rotation' properties to override the corresponding properties in
+ * the cloned viewport.
+ * @returns {PDFJS.PageViewport} Cloned viewport.
+ */
+ clone: function PageViewPort_clone(args) {
+ args = args || {};
+ var scale = 'scale' in args ? args.scale : this.scale;
+ var rotation = 'rotation' in args ? args.rotation : this.rotation;
+ return new PageViewport(this.viewBox.slice(), scale, rotation,
+ this.offsetX, this.offsetY, args.dontFlip);
+ },
+ /**
+ * Converts PDF point to the viewport coordinates. For examples, useful for
+ * converting PDF location into canvas pixel coordinates.
+ * @param x {number} X coordinate.
+ * @param y {number} Y coordinate.
+ * @returns {Object} Object that contains 'x' and 'y' properties of the
+ * point in the viewport coordinate space.
+ * @see {@link convertToPdfPoint}
+ * @see {@link convertToViewportRectangle}
+ */
+ convertToViewportPoint: function PageViewport_convertToViewportPoint(x, y) {
+ return Util.applyTransform([x, y], this.transform);
+ },
+ /**
+ * Converts PDF rectangle to the viewport coordinates.
+ * @param rect {Array} xMin, yMin, xMax and yMax coordinates.
+ * @returns {Array} Contains corresponding coordinates of the rectangle
+ * in the viewport coordinate space.
+ * @see {@link convertToViewportPoint}
+ */
+ convertToViewportRectangle:
+ function PageViewport_convertToViewportRectangle(rect) {
+ var tl = Util.applyTransform([rect[0], rect[1]], this.transform);
+ var br = Util.applyTransform([rect[2], rect[3]], this.transform);
+ return [tl[0], tl[1], br[0], br[1]];
+ },
+ /**
+ * Converts viewport coordinates to the PDF location. For examples, useful
+ * for converting canvas pixel location into PDF one.
+ * @param x {number} X coordinate.
+ * @param y {number} Y coordinate.
+ * @returns {Object} Object that contains 'x' and 'y' properties of the
+ * point in the PDF coordinate space.
+ * @see {@link convertToViewportPoint}
+ */
+ convertToPdfPoint: function PageViewport_convertToPdfPoint(x, y) {
+ return Util.applyInverseTransform([x, y], this.transform);
+ }
+ };
+ return PageViewport;
+})();
+
+var PDFStringTranslateTable = [
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0x2D8, 0x2C7, 0x2C6, 0x2D9, 0x2DD, 0x2DB, 0x2DA, 0x2DC, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014,
+ 0x2013, 0x192, 0x2044, 0x2039, 0x203A, 0x2212, 0x2030, 0x201E, 0x201C,
+ 0x201D, 0x2018, 0x2019, 0x201A, 0x2122, 0xFB01, 0xFB02, 0x141, 0x152, 0x160,
+ 0x178, 0x17D, 0x131, 0x142, 0x153, 0x161, 0x17E, 0, 0x20AC
+];
+
+function stringToPDFString(str) {
+ var i, n = str.length, strBuf = [];
+ if (str[0] === '\xFE' && str[1] === '\xFF') {
+ // UTF16BE BOM
+ for (i = 2; i < n; i += 2) {
+ strBuf.push(String.fromCharCode(
+ (str.charCodeAt(i) << 8) | str.charCodeAt(i + 1)));
+ }
+ } else {
+ for (i = 0; i < n; ++i) {
+ var code = PDFStringTranslateTable[str.charCodeAt(i)];
+ strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
+ }
+ }
+ return strBuf.join('');
+}
+
+function stringToUTF8String(str) {
+ return decodeURIComponent(escape(str));
+}
+
+function isEmptyObj(obj) {
+ for (var key in obj) {
+ return false;
+ }
+ return true;
+}
+
+function isBool(v) {
+ return typeof v === 'boolean';
+}
+
+function isInt(v) {
+ return typeof v === 'number' && ((v | 0) === v);
+}
+
+function isNum(v) {
+ return typeof v === 'number';
+}
+
+function isString(v) {
+ return typeof v === 'string';
+}
+
+function isName(v) {
+ return v instanceof Name;
+}
+
+function isCmd(v, cmd) {
+ return v instanceof Cmd && (cmd === undefined || v.cmd === cmd);
+}
+
+function isDict(v, type) {
+ if (!(v instanceof Dict)) {
+ return false;
+ }
+ if (!type) {
+ return true;
+ }
+ var dictType = v.get('Type');
+ return isName(dictType) && dictType.name === type;
+}
+
+function isArray(v) {
+ return v instanceof Array;
+}
+
+function isStream(v) {
+ return typeof v === 'object' && v !== null && v.getBytes !== undefined;
+}
+
+function isArrayBuffer(v) {
+ return typeof v === 'object' && v !== null && v.byteLength !== undefined;
+}
+
+function isRef(v) {
+ return v instanceof Ref;
+}
+
+/**
+ * Promise Capability object.
+ *
+ * @typedef {Object} PromiseCapability
+ * @property {Promise} promise - A promise object.
+ * @property {function} resolve - Fullfills the promise.
+ * @property {function} reject - Rejects the promise.
+ */
+
+/**
+ * Creates a promise capability object.
+ * @alias PDFJS.createPromiseCapability
+ *
+ * @return {PromiseCapability} A capability object contains:
+ * - a Promise, resolve and reject methods.
+ */
+function createPromiseCapability() {
+ var capability = {};
+ capability.promise = new Promise(function (resolve, reject) {
+ capability.resolve = resolve;
+ capability.reject = reject;
+ });
+ return capability;
+}
+
+PDFJS.createPromiseCapability = createPromiseCapability;
+
+/**
+ * Polyfill for Promises:
+ * The following promise implementation tries to generally implement the
+ * Promise/A+ spec. Some notable differences from other promise libaries are:
+ * - There currently isn't a seperate deferred and promise object.
+ * - Unhandled rejections eventually show an error if they aren't handled.
+ *
+ * Based off of the work in:
+ * https://bugzilla.mozilla.org/show_bug.cgi?id=810490
+ */
+(function PromiseClosure() {
+ if (globalScope.Promise) {
+ // Promises existing in the DOM/Worker, checking presence of all/resolve
+ if (typeof globalScope.Promise.all !== 'function') {
+ globalScope.Promise.all = function (iterable) {
+ var count = 0, results = [], resolve, reject;
+ var promise = new globalScope.Promise(function (resolve_, reject_) {
+ resolve = resolve_;
+ reject = reject_;
+ });
+ iterable.forEach(function (p, i) {
+ count++;
+ p.then(function (result) {
+ results[i] = result;
+ count--;
+ if (count === 0) {
+ resolve(results);
+ }
+ }, reject);
+ });
+ if (count === 0) {
+ resolve(results);
+ }
+ return promise;
+ };
+ }
+ if (typeof globalScope.Promise.resolve !== 'function') {
+ globalScope.Promise.resolve = function (value) {
+ return new globalScope.Promise(function (resolve) { resolve(value); });
+ };
+ }
+ if (typeof globalScope.Promise.reject !== 'function') {
+ globalScope.Promise.reject = function (reason) {
+ return new globalScope.Promise(function (resolve, reject) {
+ reject(reason);
+ });
+ };
+ }
+ if (typeof globalScope.Promise.prototype.catch !== 'function') {
+ globalScope.Promise.prototype.catch = function (onReject) {
+ return globalScope.Promise.prototype.then(undefined, onReject);
+ };
+ }
+ return;
+ }
+ var STATUS_PENDING = 0;
+ var STATUS_RESOLVED = 1;
+ var STATUS_REJECTED = 2;
+
+ // In an attempt to avoid silent exceptions, unhandled rejections are
+ // tracked and if they aren't handled in a certain amount of time an
+ // error is logged.
+ var REJECTION_TIMEOUT = 500;
+
+ var HandlerManager = {
+ handlers: [],
+ running: false,
+ unhandledRejections: [],
+ pendingRejectionCheck: false,
+
+ scheduleHandlers: function scheduleHandlers(promise) {
+ if (promise._status === STATUS_PENDING) {
+ return;
+ }
+
+ this.handlers = this.handlers.concat(promise._handlers);
+ promise._handlers = [];
+
+ if (this.running) {
+ return;
+ }
+ this.running = true;
+
+ setTimeout(this.runHandlers.bind(this), 0);
+ },
+
+ runHandlers: function runHandlers() {
+ var RUN_TIMEOUT = 1; // ms
+ var timeoutAt = Date.now() + RUN_TIMEOUT;
+ while (this.handlers.length > 0) {
+ var handler = this.handlers.shift();
+
+ var nextStatus = handler.thisPromise._status;
+ var nextValue = handler.thisPromise._value;
+
+ try {
+ if (nextStatus === STATUS_RESOLVED) {
+ if (typeof handler.onResolve === 'function') {
+ nextValue = handler.onResolve(nextValue);
+ }
+ } else if (typeof handler.onReject === 'function') {
+ nextValue = handler.onReject(nextValue);
+ nextStatus = STATUS_RESOLVED;
+
+ if (handler.thisPromise._unhandledRejection) {
+ this.removeUnhandeledRejection(handler.thisPromise);
+ }
+ }
+ } catch (ex) {
+ nextStatus = STATUS_REJECTED;
+ nextValue = ex;
+ }
+
+ handler.nextPromise._updateStatus(nextStatus, nextValue);
+ if (Date.now() >= timeoutAt) {
+ break;
+ }
+ }
+
+ if (this.handlers.length > 0) {
+ setTimeout(this.runHandlers.bind(this), 0);
+ return;
+ }
+
+ this.running = false;
+ },
+
+ addUnhandledRejection: function addUnhandledRejection(promise) {
+ this.unhandledRejections.push({
+ promise: promise,
+ time: Date.now()
+ });
+ this.scheduleRejectionCheck();
+ },
+
+ removeUnhandeledRejection: function removeUnhandeledRejection(promise) {
+ promise._unhandledRejection = false;
+ for (var i = 0; i < this.unhandledRejections.length; i++) {
+ if (this.unhandledRejections[i].promise === promise) {
+ this.unhandledRejections.splice(i);
+ i--;
+ }
+ }
+ },
+
+ scheduleRejectionCheck: function scheduleRejectionCheck() {
+ if (this.pendingRejectionCheck) {
+ return;
+ }
+ this.pendingRejectionCheck = true;
+ setTimeout(function rejectionCheck() {
+ this.pendingRejectionCheck = false;
+ var now = Date.now();
+ for (var i = 0; i < this.unhandledRejections.length; i++) {
+ if (now - this.unhandledRejections[i].time > REJECTION_TIMEOUT) {
+ var unhandled = this.unhandledRejections[i].promise._value;
+ var msg = 'Unhandled rejection: ' + unhandled;
+ if (unhandled.stack) {
+ msg += '\n' + unhandled.stack;
+ }
+ warn(msg);
+ this.unhandledRejections.splice(i);
+ i--;
+ }
+ }
+ if (this.unhandledRejections.length) {
+ this.scheduleRejectionCheck();
+ }
+ }.bind(this), REJECTION_TIMEOUT);
+ }
+ };
+
+ function Promise(resolver) {
+ this._status = STATUS_PENDING;
+ this._handlers = [];
+ try {
+ resolver.call(this, this._resolve.bind(this), this._reject.bind(this));
+ } catch (e) {
+ this._reject(e);
+ }
+ }
+ /**
+ * Builds a promise that is resolved when all the passed in promises are
+ * resolved.
+ * @param {array} array of data and/or promises to wait for.
+ * @return {Promise} New dependant promise.
+ */
+ Promise.all = function Promise_all(promises) {
+ var resolveAll, rejectAll;
+ var deferred = new Promise(function (resolve, reject) {
+ resolveAll = resolve;
+ rejectAll = reject;
+ });
+ var unresolved = promises.length;
+ var results = [];
+ if (unresolved === 0) {
+ resolveAll(results);
+ return deferred;
+ }
+ function reject(reason) {
+ if (deferred._status === STATUS_REJECTED) {
+ return;
+ }
+ results = [];
+ rejectAll(reason);
+ }
+ for (var i = 0, ii = promises.length; i < ii; ++i) {
+ var promise = promises[i];
+ var resolve = (function(i) {
+ return function(value) {
+ if (deferred._status === STATUS_REJECTED) {
+ return;
+ }
+ results[i] = value;
+ unresolved--;
+ if (unresolved === 0) {
+ resolveAll(results);
+ }
+ };
+ })(i);
+ if (Promise.isPromise(promise)) {
+ promise.then(resolve, reject);
+ } else {
+ resolve(promise);
+ }
+ }
+ return deferred;
+ };
+
+ /**
+ * Checks if the value is likely a promise (has a 'then' function).
+ * @return {boolean} true if value is thenable
+ */
+ Promise.isPromise = function Promise_isPromise(value) {
+ return value && typeof value.then === 'function';
+ };
+
+ /**
+ * Creates resolved promise
+ * @param value resolve value
+ * @returns {Promise}
+ */
+ Promise.resolve = function Promise_resolve(value) {
+ return new Promise(function (resolve) { resolve(value); });
+ };
+
+ /**
+ * Creates rejected promise
+ * @param reason rejection value
+ * @returns {Promise}
+ */
+ Promise.reject = function Promise_reject(reason) {
+ return new Promise(function (resolve, reject) { reject(reason); });
+ };
+
+ Promise.prototype = {
+ _status: null,
+ _value: null,
+ _handlers: null,
+ _unhandledRejection: null,
+
+ _updateStatus: function Promise__updateStatus(status, value) {
+ if (this._status === STATUS_RESOLVED ||
+ this._status === STATUS_REJECTED) {
+ return;
+ }
+
+ if (status === STATUS_RESOLVED &&
+ Promise.isPromise(value)) {
+ value.then(this._updateStatus.bind(this, STATUS_RESOLVED),
+ this._updateStatus.bind(this, STATUS_REJECTED));
+ return;
+ }
+
+ this._status = status;
+ this._value = value;
+
+ if (status === STATUS_REJECTED && this._handlers.length === 0) {
+ this._unhandledRejection = true;
+ HandlerManager.addUnhandledRejection(this);
+ }
+
+ HandlerManager.scheduleHandlers(this);
+ },
+
+ _resolve: function Promise_resolve(value) {
+ this._updateStatus(STATUS_RESOLVED, value);
+ },
+
+ _reject: function Promise_reject(reason) {
+ this._updateStatus(STATUS_REJECTED, reason);
+ },
+
+ then: function Promise_then(onResolve, onReject) {
+ var nextPromise = new Promise(function (resolve, reject) {
+ this.resolve = resolve;
+ this.reject = reject;
+ });
+ this._handlers.push({
+ thisPromise: this,
+ onResolve: onResolve,
+ onReject: onReject,
+ nextPromise: nextPromise
+ });
+ HandlerManager.scheduleHandlers(this);
+ return nextPromise;
+ },
+
+ catch: function Promise_catch(onReject) {
+ return this.then(undefined, onReject);
+ }
+ };
+
+ globalScope.Promise = Promise;
+})();
+
+var StatTimer = (function StatTimerClosure() {
+ function rpad(str, pad, length) {
+ while (str.length < length) {
+ str += pad;
+ }
+ return str;
+ }
+ function StatTimer() {
+ this.started = {};
+ this.times = [];
+ this.enabled = true;
+ }
+ StatTimer.prototype = {
+ time: function StatTimer_time(name) {
+ if (!this.enabled) {
+ return;
+ }
+ if (name in this.started) {
+ warn('Timer is already running for ' + name);
+ }
+ this.started[name] = Date.now();
+ },
+ timeEnd: function StatTimer_timeEnd(name) {
+ if (!this.enabled) {
+ return;
+ }
+ if (!(name in this.started)) {
+ warn('Timer has not been started for ' + name);
+ }
+ this.times.push({
+ 'name': name,
+ 'start': this.started[name],
+ 'end': Date.now()
+ });
+ // Remove timer from started so it can be called again.
+ delete this.started[name];
+ },
+ toString: function StatTimer_toString() {
+ var i, ii;
+ var times = this.times;
+ var out = '';
+ // Find the longest name for padding purposes.
+ var longest = 0;
+ for (i = 0, ii = times.length; i < ii; ++i) {
+ var name = times[i]['name'];
+ if (name.length > longest) {
+ longest = name.length;
+ }
+ }
+ for (i = 0, ii = times.length; i < ii; ++i) {
+ var span = times[i];
+ var duration = span.end - span.start;
+ out += rpad(span['name'], ' ', longest) + ' ' + duration + 'ms\n';
+ }
+ return out;
+ }
+ };
+ return StatTimer;
+})();
+
+PDFJS.createBlob = function createBlob(data, contentType) {
+ if (typeof Blob !== 'undefined') {
+ return new Blob([data], { type: contentType });
+ }
+ // Blob builder is deprecated in FF14 and removed in FF18.
+ var bb = new MozBlobBuilder();
+ bb.append(data);
+ return bb.getBlob(contentType);
+};
+
+PDFJS.createObjectURL = (function createObjectURLClosure() {
+ // Blob/createObjectURL is not available, falling back to data schema.
+ var digits =
+ 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+
+ return function createObjectURL(data, contentType) {
+ if (!PDFJS.disableCreateObjectURL &&
+ typeof URL !== 'undefined' && URL.createObjectURL) {
+ var blob = PDFJS.createBlob(data, contentType);
+ return URL.createObjectURL(blob);
+ }
+
+ var buffer = 'data:' + contentType + ';base64,';
+ for (var i = 0, ii = data.length; i < ii; i += 3) {
+ var b1 = data[i] & 0xFF;
+ var b2 = data[i + 1] & 0xFF;
+ var b3 = data[i + 2] & 0xFF;
+ var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);
+ var d3 = i + 1 < ii ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;
+ var d4 = i + 2 < ii ? (b3 & 0x3F) : 64;
+ buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
+ }
+ return buffer;
+ };
+})();
+
+function MessageHandler(name, comObj) {
+ this.name = name;
+ this.comObj = comObj;
+ this.callbackIndex = 1;
+ this.postMessageTransfers = true;
+ var callbacksCapabilities = this.callbacksCapabilities = {};
+ var ah = this.actionHandler = {};
+
+ ah['console_log'] = [function ahConsoleLog(data) {
+ console.log.apply(console, data);
+ }];
+ ah['console_error'] = [function ahConsoleError(data) {
+ console.error.apply(console, data);
+ }];
+ ah['_unsupported_feature'] = [function ah_unsupportedFeature(data) {
+ UnsupportedManager.notify(data);
+ }];
+
+ comObj.onmessage = function messageHandlerComObjOnMessage(event) {
+ var data = event.data;
+ if (data.isReply) {
+ var callbackId = data.callbackId;
+ if (data.callbackId in callbacksCapabilities) {
+ var callback = callbacksCapabilities[callbackId];
+ delete callbacksCapabilities[callbackId];
+ if ('error' in data) {
+ callback.reject(data.error);
+ } else {
+ callback.resolve(data.data);
+ }
+ } else {
+ error('Cannot resolve callback ' + callbackId);
+ }
+ } else if (data.action in ah) {
+ var action = ah[data.action];
+ if (data.callbackId) {
+ Promise.resolve().then(function () {
+ return action[0].call(action[1], data.data);
+ }).then(function (result) {
+ comObj.postMessage({
+ isReply: true,
+ callbackId: data.callbackId,
+ data: result
+ });
+ }, function (reason) {
+ comObj.postMessage({
+ isReply: true,
+ callbackId: data.callbackId,
+ error: reason
+ });
+ });
+ } else {
+ action[0].call(action[1], data.data);
+ }
+ } else {
+ error('Unknown action from worker: ' + data.action);
+ }
+ };
+}
+
+MessageHandler.prototype = {
+ on: function messageHandlerOn(actionName, handler, scope) {
+ var ah = this.actionHandler;
+ if (ah[actionName]) {
+ error('There is already an actionName called "' + actionName + '"');
+ }
+ ah[actionName] = [handler, scope];
+ },
+ /**
+ * Sends a message to the comObj to invoke the action with the supplied data.
+ * @param {String} actionName Action to call.
+ * @param {JSON} data JSON data to send.
+ * @param {Array} [transfers] Optional list of transfers/ArrayBuffers
+ */
+ send: function messageHandlerSend(actionName, data, transfers) {
+ var message = {
+ action: actionName,
+ data: data
+ };
+ this.postMessage(message, transfers);
+ },
+ /**
+ * Sends a message to the comObj to invoke the action with the supplied data.
+ * Expects that other side will callback with the response.
+ * @param {String} actionName Action to call.
+ * @param {JSON} data JSON data to send.
+ * @param {Array} [transfers] Optional list of transfers/ArrayBuffers.
+ * @returns {Promise} Promise to be resolved with response data.
+ */
+ sendWithPromise:
+ function messageHandlerSendWithPromise(actionName, data, transfers) {
+ var callbackId = this.callbackIndex++;
+ var message = {
+ action: actionName,
+ data: data,
+ callbackId: callbackId
+ };
+ var capability = createPromiseCapability();
+ this.callbacksCapabilities[callbackId] = capability;
+ try {
+ this.postMessage(message, transfers);
+ } catch (e) {
+ capability.reject(e);
+ }
+ return capability.promise;
+ },
+ /**
+ * Sends raw message to the comObj.
+ * @private
+ * @param message {Object} Raw message.
+ * @param transfers List of transfers/ArrayBuffers, or undefined.
+ */
+ postMessage: function (message, transfers) {
+ if (transfers && this.postMessageTransfers) {
+ this.comObj.postMessage(message, transfers);
+ } else {
+ this.comObj.postMessage(message);
+ }
+ }
+};
+
+function loadJpegStream(id, imageUrl, objs) {
+ var img = new Image();
+ img.onload = (function loadJpegStream_onloadClosure() {
+ objs.resolve(id, img);
+ });
+ img.onerror = (function loadJpegStream_onerrorClosure() {
+ objs.resolve(id, null);
+ warn('Error during JPEG image loading');
+ });
+ img.src = imageUrl;
+}
+
+
+
+
+var NetworkManager = (function NetworkManagerClosure() {
+
+ var OK_RESPONSE = 200;
+ var PARTIAL_CONTENT_RESPONSE = 206;
+
+ function NetworkManager(url, args) {
+ this.url = url;
+ args = args || {};
+ this.isHttp = /^https?:/i.test(url);
+ this.httpHeaders = (this.isHttp && args.httpHeaders) || {};
+ this.withCredentials = args.withCredentials || false;
+ this.getXhr = args.getXhr ||
+ function NetworkManager_getXhr() {
+ return new XMLHttpRequest();
+ };
+
+ this.currXhrId = 0;
+ this.pendingRequests = {};
+ this.loadedRequests = {};
+ }
+
+ function getArrayBuffer(xhr) {
+ var data = xhr.response;
+ if (typeof data !== 'string') {
+ return data;
+ }
+ var length = data.length;
+ var array = new Uint8Array(length);
+ for (var i = 0; i < length; i++) {
+ array[i] = data.charCodeAt(i) & 0xFF;
+ }
+ return array.buffer;
+ }
+
+ NetworkManager.prototype = {
+ requestRange: function NetworkManager_requestRange(begin, end, listeners) {
+ var args = {
+ begin: begin,
+ end: end
+ };
+ for (var prop in listeners) {
+ args[prop] = listeners[prop];
+ }
+ return this.request(args);
+ },
+
+ requestFull: function NetworkManager_requestFull(listeners) {
+ return this.request(listeners);
+ },
+
+ request: function NetworkManager_request(args) {
+ var xhr = this.getXhr();
+ var xhrId = this.currXhrId++;
+ var pendingRequest = this.pendingRequests[xhrId] = {
+ xhr: xhr
+ };
+
+ xhr.open('GET', this.url);
+ xhr.withCredentials = this.withCredentials;
+ for (var property in this.httpHeaders) {
+ var value = this.httpHeaders[property];
+ if (typeof value === 'undefined') {
+ continue;
+ }
+ xhr.setRequestHeader(property, value);
+ }
+ if (this.isHttp && 'begin' in args && 'end' in args) {
+ var rangeStr = args.begin + '-' + (args.end - 1);
+ xhr.setRequestHeader('Range', 'bytes=' + rangeStr);
+ pendingRequest.expectedStatus = 206;
+ } else {
+ pendingRequest.expectedStatus = 200;
+ }
+
+ if (args.onProgressiveData) {
+ // Some legacy browsers might throw an exception.
+ try {
+ xhr.responseType = 'moz-chunked-arraybuffer';
+ } catch(e) {}
+ if (xhr.responseType === 'moz-chunked-arraybuffer') {
+ pendingRequest.onProgressiveData = args.onProgressiveData;
+ pendingRequest.mozChunked = true;
+ } else {
+ xhr.responseType = 'arraybuffer';
+ }
+ } else {
+ xhr.responseType = 'arraybuffer';
+ }
+
+ if (args.onError) {
+ xhr.onerror = function(evt) {
+ args.onError(xhr.status);
+ };
+ }
+ xhr.onreadystatechange = this.onStateChange.bind(this, xhrId);
+ xhr.onprogress = this.onProgress.bind(this, xhrId);
+
+ pendingRequest.onHeadersReceived = args.onHeadersReceived;
+ pendingRequest.onDone = args.onDone;
+ pendingRequest.onError = args.onError;
+ pendingRequest.onProgress = args.onProgress;
+
+ xhr.send(null);
+
+ return xhrId;
+ },
+
+ onProgress: function NetworkManager_onProgress(xhrId, evt) {
+ var pendingRequest = this.pendingRequests[xhrId];
+ if (!pendingRequest) {
+ // Maybe abortRequest was called...
+ return;
+ }
+
+ if (pendingRequest.mozChunked) {
+ var chunk = getArrayBuffer(pendingRequest.xhr);
+ pendingRequest.onProgressiveData(chunk);
+ }
+
+ var onProgress = pendingRequest.onProgress;
+ if (onProgress) {
+ onProgress(evt);
+ }
+ },
+
+ onStateChange: function NetworkManager_onStateChange(xhrId, evt) {
+ var pendingRequest = this.pendingRequests[xhrId];
+ if (!pendingRequest) {
+ // Maybe abortRequest was called...
+ return;
+ }
+
+ var xhr = pendingRequest.xhr;
+ if (xhr.readyState >= 2 && pendingRequest.onHeadersReceived) {
+ pendingRequest.onHeadersReceived();
+ delete pendingRequest.onHeadersReceived;
+ }
+
+ if (xhr.readyState !== 4) {
+ return;
+ }
+
+ if (!(xhrId in this.pendingRequests)) {
+ // The XHR request might have been aborted in onHeadersReceived()
+ // callback, in which case we should abort request
+ return;
+ }
+
+ delete this.pendingRequests[xhrId];
+
+ // success status == 0 can be on ftp, file and other protocols
+ if (xhr.status === 0 && this.isHttp) {
+ if (pendingRequest.onError) {
+ pendingRequest.onError(xhr.status);
+ }
+ return;
+ }
+ var xhrStatus = xhr.status || OK_RESPONSE;
+
+ // From http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.2:
+ // "A server MAY ignore the Range header". This means it's possible to
+ // get a 200 rather than a 206 response from a range request.
+ var ok_response_on_range_request =
+ xhrStatus === OK_RESPONSE &&
+ pendingRequest.expectedStatus === PARTIAL_CONTENT_RESPONSE;
+
+ if (!ok_response_on_range_request &&
+ xhrStatus !== pendingRequest.expectedStatus) {
+ if (pendingRequest.onError) {
+ pendingRequest.onError(xhr.status);
+ }
+ return;
+ }
+
+ this.loadedRequests[xhrId] = true;
+
+ var chunk = getArrayBuffer(xhr);
+ if (xhrStatus === PARTIAL_CONTENT_RESPONSE) {
+ var rangeHeader = xhr.getResponseHeader('Content-Range');
+ var matches = /bytes (\d+)-(\d+)\/(\d+)/.exec(rangeHeader);
+ var begin = parseInt(matches[1], 10);
+ pendingRequest.onDone({
+ begin: begin,
+ chunk: chunk
+ });
+ } else if (pendingRequest.onProgressiveData) {
+ pendingRequest.onDone(null);
+ } else {
+ pendingRequest.onDone({
+ begin: 0,
+ chunk: chunk
+ });
+ }
+ },
+
+ hasPendingRequests: function NetworkManager_hasPendingRequests() {
+ for (var xhrId in this.pendingRequests) {
+ return true;
+ }
+ return false;
+ },
+
+ getRequestXhr: function NetworkManager_getXhr(xhrId) {
+ return this.pendingRequests[xhrId].xhr;
+ },
+
+ isStreamingRequest: function NetworkManager_isStreamingRequest(xhrId) {
+ return !!(this.pendingRequests[xhrId].onProgressiveData);
+ },
+
+ isPendingRequest: function NetworkManager_isPendingRequest(xhrId) {
+ return xhrId in this.pendingRequests;
+ },
+
+ isLoadedRequest: function NetworkManager_isLoadedRequest(xhrId) {
+ return xhrId in this.loadedRequests;
+ },
+
+ abortAllRequests: function NetworkManager_abortAllRequests() {
+ for (var xhrId in this.pendingRequests) {
+ this.abortRequest(xhrId | 0);
+ }
+ },
+
+ abortRequest: function NetworkManager_abortRequest(xhrId) {
+ var xhr = this.pendingRequests[xhrId].xhr;
+ delete this.pendingRequests[xhrId];
+ xhr.abort();
+ }
+ };
+
+ return NetworkManager;
+})();
+
+
+var ChunkedStream = (function ChunkedStreamClosure() {
+ function ChunkedStream(length, chunkSize, manager) {
+ this.bytes = new Uint8Array(length);
+ this.start = 0;
+ this.pos = 0;
+ this.end = length;
+ this.chunkSize = chunkSize;
+ this.loadedChunks = [];
+ this.numChunksLoaded = 0;
+ this.numChunks = Math.ceil(length / chunkSize);
+ this.manager = manager;
+ this.progressiveDataLength = 0;
+ this.lastSuccessfulEnsureByteChunk = -1; // a single-entry cache
+ }
+
+ // required methods for a stream. if a particular stream does not
+ // implement these, an error should be thrown
+ ChunkedStream.prototype = {
+
+ getMissingChunks: function ChunkedStream_getMissingChunks() {
+ var chunks = [];
+ for (var chunk = 0, n = this.numChunks; chunk < n; ++chunk) {
+ if (!this.loadedChunks[chunk]) {
+ chunks.push(chunk);
+ }
+ }
+ return chunks;
+ },
+
+ getBaseStreams: function ChunkedStream_getBaseStreams() {
+ return [this];
+ },
+
+ allChunksLoaded: function ChunkedStream_allChunksLoaded() {
+ return this.numChunksLoaded === this.numChunks;
+ },
+
+ onReceiveData: function ChunkedStream_onReceiveData(begin, chunk) {
+ var end = begin + chunk.byteLength;
+
+ assert(begin % this.chunkSize === 0, 'Bad begin offset: ' + begin);
+ // Using this.length is inaccurate here since this.start can be moved
+ // See ChunkedStream.moveStart()
+ var length = this.bytes.length;
+ assert(end % this.chunkSize === 0 || end === length,
+ 'Bad end offset: ' + end);
+
+ this.bytes.set(new Uint8Array(chunk), begin);
+ var chunkSize = this.chunkSize;
+ var beginChunk = Math.floor(begin / chunkSize);
+ var endChunk = Math.floor((end - 1) / chunkSize) + 1;
+ var curChunk;
+
+ for (curChunk = beginChunk; curChunk < endChunk; ++curChunk) {
+ if (!this.loadedChunks[curChunk]) {
+ this.loadedChunks[curChunk] = true;
+ ++this.numChunksLoaded;
+ }
+ }
+ },
+
+ onReceiveProgressiveData:
+ function ChunkedStream_onReceiveProgressiveData(data) {
+ var position = this.progressiveDataLength;
+ var beginChunk = Math.floor(position / this.chunkSize);
+
+ this.bytes.set(new Uint8Array(data), position);
+ position += data.byteLength;
+ this.progressiveDataLength = position;
+ var endChunk = position >= this.end ? this.numChunks :
+ Math.floor(position / this.chunkSize);
+ var curChunk;
+ for (curChunk = beginChunk; curChunk < endChunk; ++curChunk) {
+ if (!this.loadedChunks[curChunk]) {
+ this.loadedChunks[curChunk] = true;
+ ++this.numChunksLoaded;
+ }
+ }
+ },
+
+ ensureByte: function ChunkedStream_ensureByte(pos) {
+ var chunk = Math.floor(pos / this.chunkSize);
+ if (chunk === this.lastSuccessfulEnsureByteChunk) {
+ return;
+ }
+
+ if (!this.loadedChunks[chunk]) {
+ throw new MissingDataException(pos, pos + 1);
+ }
+ this.lastSuccessfulEnsureByteChunk = chunk;
+ },
+
+ ensureRange: function ChunkedStream_ensureRange(begin, end) {
+ if (begin >= end) {
+ return;
+ }
+
+ if (end <= this.progressiveDataLength) {
+ return;
+ }
+
+ var chunkSize = this.chunkSize;
+ var beginChunk = Math.floor(begin / chunkSize);
+ var endChunk = Math.floor((end - 1) / chunkSize) + 1;
+ for (var chunk = beginChunk; chunk < endChunk; ++chunk) {
+ if (!this.loadedChunks[chunk]) {
+ throw new MissingDataException(begin, end);
+ }
+ }
+ },
+
+ nextEmptyChunk: function ChunkedStream_nextEmptyChunk(beginChunk) {
+ var chunk, n;
+ for (chunk = beginChunk, n = this.numChunks; chunk < n; ++chunk) {
+ if (!this.loadedChunks[chunk]) {
+ return chunk;
+ }
+ }
+ // Wrap around to beginning
+ for (chunk = 0; chunk < beginChunk; ++chunk) {
+ if (!this.loadedChunks[chunk]) {
+ return chunk;
+ }
+ }
+ return null;
+ },
+
+ hasChunk: function ChunkedStream_hasChunk(chunk) {
+ return !!this.loadedChunks[chunk];
+ },
+
+ get length() {
+ return this.end - this.start;
+ },
+
+ get isEmpty() {
+ return this.length === 0;
+ },
+
+ getByte: function ChunkedStream_getByte() {
+ var pos = this.pos;
+ if (pos >= this.end) {
+ return -1;
+ }
+ this.ensureByte(pos);
+ return this.bytes[this.pos++];
+ },
+
+ getUint16: function ChunkedStream_getUint16() {
+ var b0 = this.getByte();
+ var b1 = this.getByte();
+ if (b0 === -1 || b1 === -1) {
+ return -1;
+ }
+ return (b0 << 8) + b1;
+ },
+
+ getInt32: function ChunkedStream_getInt32() {
+ var b0 = this.getByte();
+ var b1 = this.getByte();
+ var b2 = this.getByte();
+ var b3 = this.getByte();
+ return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3;
+ },
+
+ // returns subarray of original buffer
+ // should only be read
+ getBytes: function ChunkedStream_getBytes(length) {
+ var bytes = this.bytes;
+ var pos = this.pos;
+ var strEnd = this.end;
+
+ if (!length) {
+ this.ensureRange(pos, strEnd);
+ return bytes.subarray(pos, strEnd);
+ }
+
+ var end = pos + length;
+ if (end > strEnd) {
+ end = strEnd;
+ }
+ this.ensureRange(pos, end);
+
+ this.pos = end;
+ return bytes.subarray(pos, end);
+ },
+
+ peekByte: function ChunkedStream_peekByte() {
+ var peekedByte = this.getByte();
+ this.pos--;
+ return peekedByte;
+ },
+
+ peekBytes: function ChunkedStream_peekBytes(length) {
+ var bytes = this.getBytes(length);
+ this.pos -= bytes.length;
+ return bytes;
+ },
+
+ getByteRange: function ChunkedStream_getBytes(begin, end) {
+ this.ensureRange(begin, end);
+ return this.bytes.subarray(begin, end);
+ },
+
+ skip: function ChunkedStream_skip(n) {
+ if (!n) {
+ n = 1;
+ }
+ this.pos += n;
+ },
+
+ reset: function ChunkedStream_reset() {
+ this.pos = this.start;
+ },
+
+ moveStart: function ChunkedStream_moveStart() {
+ this.start = this.pos;
+ },
+
+ makeSubStream: function ChunkedStream_makeSubStream(start, length, dict) {
+ this.ensureRange(start, start + length);
+
+ function ChunkedStreamSubstream() {}
+ ChunkedStreamSubstream.prototype = Object.create(this);
+ ChunkedStreamSubstream.prototype.getMissingChunks = function() {
+ var chunkSize = this.chunkSize;
+ var beginChunk = Math.floor(this.start / chunkSize);
+ var endChunk = Math.floor((this.end - 1) / chunkSize) + 1;
+ var missingChunks = [];
+ for (var chunk = beginChunk; chunk < endChunk; ++chunk) {
+ if (!this.loadedChunks[chunk]) {
+ missingChunks.push(chunk);
+ }
+ }
+ return missingChunks;
+ };
+ var subStream = new ChunkedStreamSubstream();
+ subStream.pos = subStream.start = start;
+ subStream.end = start + length || this.end;
+ subStream.dict = dict;
+ return subStream;
+ },
+
+ isStream: true
+ };
+
+ return ChunkedStream;
+})();
+
+var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
+
+ function ChunkedStreamManager(length, chunkSize, url, args) {
+ this.stream = new ChunkedStream(length, chunkSize, this);
+ this.length = length;
+ this.chunkSize = chunkSize;
+ this.url = url;
+ this.disableAutoFetch = args.disableAutoFetch;
+ var msgHandler = this.msgHandler = args.msgHandler;
+
+ if (args.chunkedViewerLoading) {
+ msgHandler.on('OnDataRange', this.onReceiveData.bind(this));
+ msgHandler.on('OnDataProgress', this.onProgress.bind(this));
+ this.sendRequest = function ChunkedStreamManager_sendRequest(begin, end) {
+ msgHandler.send('RequestDataRange', { begin: begin, end: end });
+ };
+ } else {
+
+ var getXhr = function getXhr() {
+ return new XMLHttpRequest();
+ };
+ this.networkManager = new NetworkManager(this.url, {
+ getXhr: getXhr,
+ httpHeaders: args.httpHeaders,
+ withCredentials: args.withCredentials
+ });
+ this.sendRequest = function ChunkedStreamManager_sendRequest(begin, end) {
+ this.networkManager.requestRange(begin, end, {
+ onDone: this.onReceiveData.bind(this),
+ onProgress: this.onProgress.bind(this)
+ });
+ };
+ }
+
+ this.currRequestId = 0;
+
+ this.chunksNeededByRequest = {};
+ this.requestsByChunk = {};
+ this.callbacksByRequest = {};
+ this.progressiveDataLength = 0;
+
+ this._loadedStreamCapability = createPromiseCapability();
+
+ if (args.initialData) {
+ this.onReceiveData({chunk: args.initialData});
+ }
+ }
+
+ ChunkedStreamManager.prototype = {
+ onLoadedStream: function ChunkedStreamManager_getLoadedStream() {
+ return this._loadedStreamCapability.promise;
+ },
+
+ // Get all the chunks that are not yet loaded and groups them into
+ // contiguous ranges to load in as few requests as possible
+ requestAllChunks: function ChunkedStreamManager_requestAllChunks() {
+ var missingChunks = this.stream.getMissingChunks();
+ this.requestChunks(missingChunks);
+ return this._loadedStreamCapability.promise;
+ },
+
+ requestChunks: function ChunkedStreamManager_requestChunks(chunks,
+ callback) {
+ var requestId = this.currRequestId++;
+
+ var chunksNeeded;
+ var i, ii;
+ this.chunksNeededByRequest[requestId] = chunksNeeded = {};
+ for (i = 0, ii = chunks.length; i < ii; i++) {
+ if (!this.stream.hasChunk(chunks[i])) {
+ chunksNeeded[chunks[i]] = true;
+ }
+ }
+
+ if (isEmptyObj(chunksNeeded)) {
+ if (callback) {
+ callback();
+ }
+ return;
+ }
+
+ this.callbacksByRequest[requestId] = callback;
+
+ var chunksToRequest = [];
+ for (var chunk in chunksNeeded) {
+ chunk = chunk | 0;
+ if (!(chunk in this.requestsByChunk)) {
+ this.requestsByChunk[chunk] = [];
+ chunksToRequest.push(chunk);
+ }
+ this.requestsByChunk[chunk].push(requestId);
+ }
+
+ if (!chunksToRequest.length) {
+ return;
+ }
+
+ var groupedChunksToRequest = this.groupChunks(chunksToRequest);
+
+ for (i = 0; i < groupedChunksToRequest.length; ++i) {
+ var groupedChunk = groupedChunksToRequest[i];
+ var begin = groupedChunk.beginChunk * this.chunkSize;
+ var end = Math.min(groupedChunk.endChunk * this.chunkSize, this.length);
+ this.sendRequest(begin, end);
+ }
+ },
+
+ getStream: function ChunkedStreamManager_getStream() {
+ return this.stream;
+ },
+
+ // Loads any chunks in the requested range that are not yet loaded
+ requestRange: function ChunkedStreamManager_requestRange(
+ begin, end, callback) {
+
+ end = Math.min(end, this.length);
+
+ var beginChunk = this.getBeginChunk(begin);
+ var endChunk = this.getEndChunk(end);
+
+ var chunks = [];
+ for (var chunk = beginChunk; chunk < endChunk; ++chunk) {
+ chunks.push(chunk);
+ }
+
+ this.requestChunks(chunks, callback);
+ },
+
+ requestRanges: function ChunkedStreamManager_requestRanges(ranges,
+ callback) {
+ ranges = ranges || [];
+ var chunksToRequest = [];
+
+ for (var i = 0; i < ranges.length; i++) {
+ var beginChunk = this.getBeginChunk(ranges[i].begin);
+ var endChunk = this.getEndChunk(ranges[i].end);
+ for (var chunk = beginChunk; chunk < endChunk; ++chunk) {
+ if (chunksToRequest.indexOf(chunk) < 0) {
+ chunksToRequest.push(chunk);
+ }
+ }
+ }
+
+ chunksToRequest.sort(function(a, b) { return a - b; });
+ this.requestChunks(chunksToRequest, callback);
+ },
+
+ // Groups a sorted array of chunks into as few continguous larger
+ // chunks as possible
+ groupChunks: function ChunkedStreamManager_groupChunks(chunks) {
+ var groupedChunks = [];
+ var beginChunk = -1;
+ var prevChunk = -1;
+ for (var i = 0; i < chunks.length; ++i) {
+ var chunk = chunks[i];
+
+ if (beginChunk < 0) {
+ beginChunk = chunk;
+ }
+
+ if (prevChunk >= 0 && prevChunk + 1 !== chunk) {
+ groupedChunks.push({ beginChunk: beginChunk,
+ endChunk: prevChunk + 1 });
+ beginChunk = chunk;
+ }
+ if (i + 1 === chunks.length) {
+ groupedChunks.push({ beginChunk: beginChunk,
+ endChunk: chunk + 1 });
+ }
+
+ prevChunk = chunk;
+ }
+ return groupedChunks;
+ },
+
+ onProgress: function ChunkedStreamManager_onProgress(args) {
+ var bytesLoaded = (this.stream.numChunksLoaded * this.chunkSize +
+ args.loaded);
+ this.msgHandler.send('DocProgress', {
+ loaded: bytesLoaded,
+ total: this.length
+ });
+ },
+
+ onReceiveData: function ChunkedStreamManager_onReceiveData(args) {
+ var chunk = args.chunk;
+ var isProgressive = args.begin === undefined;
+ var begin = isProgressive ? this.progressiveDataLength : args.begin;
+ var end = begin + chunk.byteLength;
+
+ var beginChunk = Math.floor(begin / this.chunkSize);
+ var endChunk = end < this.length ? Math.floor(end / this.chunkSize) :
+ Math.ceil(end / this.chunkSize);
+
+ if (isProgressive) {
+ this.stream.onReceiveProgressiveData(chunk);
+ this.progressiveDataLength = end;
+ } else {
+ this.stream.onReceiveData(begin, chunk);
+ }
+
+ if (this.stream.allChunksLoaded()) {
+ this._loadedStreamCapability.resolve(this.stream);
+ }
+
+ var loadedRequests = [];
+ var i, requestId;
+ for (chunk = beginChunk; chunk < endChunk; ++chunk) {
+ // The server might return more chunks than requested
+ var requestIds = this.requestsByChunk[chunk] || [];
+ delete this.requestsByChunk[chunk];
+
+ for (i = 0; i < requestIds.length; ++i) {
+ requestId = requestIds[i];
+ var chunksNeeded = this.chunksNeededByRequest[requestId];
+ if (chunk in chunksNeeded) {
+ delete chunksNeeded[chunk];
+ }
+
+ if (!isEmptyObj(chunksNeeded)) {
+ continue;
+ }
+
+ loadedRequests.push(requestId);
+ }
+ }
+
+ // If there are no pending requests, automatically fetch the next
+ // unfetched chunk of the PDF
+ if (!this.disableAutoFetch && isEmptyObj(this.requestsByChunk)) {
+ var nextEmptyChunk;
+ if (this.stream.numChunksLoaded === 1) {
+ // This is a special optimization so that after fetching the first
+ // chunk, rather than fetching the second chunk, we fetch the last
+ // chunk.
+ var lastChunk = this.stream.numChunks - 1;
+ if (!this.stream.hasChunk(lastChunk)) {
+ nextEmptyChunk = lastChunk;
+ }
+ } else {
+ nextEmptyChunk = this.stream.nextEmptyChunk(endChunk);
+ }
+ if (isInt(nextEmptyChunk)) {
+ this.requestChunks([nextEmptyChunk]);
+ }
+ }
+
+ for (i = 0; i < loadedRequests.length; ++i) {
+ requestId = loadedRequests[i];
+ var callback = this.callbacksByRequest[requestId];
+ delete this.callbacksByRequest[requestId];
+ if (callback) {
+ callback();
+ }
+ }
+
+ this.msgHandler.send('DocProgress', {
+ loaded: this.stream.numChunksLoaded * this.chunkSize,
+ total: this.length
+ });
+ },
+
+ onError: function ChunkedStreamManager_onError(err) {
+ this._loadedStreamCapability.reject(err);
+ },
+
+ getBeginChunk: function ChunkedStreamManager_getBeginChunk(begin) {
+ var chunk = Math.floor(begin / this.chunkSize);
+ return chunk;
+ },
+
+ getEndChunk: function ChunkedStreamManager_getEndChunk(end) {
+ if (end % this.chunkSize === 0) {
+ return end / this.chunkSize;
+ }
+
+ // 0 -> 0
+ // 1 -> 1
+ // 99 -> 1
+ // 100 -> 1
+ // 101 -> 2
+ var chunk = Math.floor((end - 1) / this.chunkSize) + 1;
+ return chunk;
+ }
+ };
+
+ return ChunkedStreamManager;
+})();
+
+
+// The maximum number of bytes fetched per range request
+var RANGE_CHUNK_SIZE = 65536;
+
+// TODO(mack): Make use of PDFJS.Util.inherit() when it becomes available
+var BasePdfManager = (function BasePdfManagerClosure() {
+ function BasePdfManager() {
+ throw new Error('Cannot initialize BaseManagerManager');
+ }
+
+ BasePdfManager.prototype = {
+ onLoadedStream: function BasePdfManager_onLoadedStream() {
+ throw new NotImplementedException();
+ },
+
+ ensureDoc: function BasePdfManager_ensureDoc(prop, args) {
+ return this.ensure(this.pdfDocument, prop, args);
+ },
+
+ ensureXRef: function BasePdfManager_ensureXRef(prop, args) {
+ return this.ensure(this.pdfDocument.xref, prop, args);
+ },
+
+ ensureCatalog: function BasePdfManager_ensureCatalog(prop, args) {
+ return this.ensure(this.pdfDocument.catalog, prop, args);
+ },
+
+ getPage: function BasePdfManager_pagePage(pageIndex) {
+ return this.pdfDocument.getPage(pageIndex);
+ },
+
+ cleanup: function BasePdfManager_cleanup() {
+ return this.pdfDocument.cleanup();
+ },
+
+ ensure: function BasePdfManager_ensure(obj, prop, args) {
+ return new NotImplementedException();
+ },
+
+ requestRange: function BasePdfManager_ensure(begin, end) {
+ return new NotImplementedException();
+ },
+
+ requestLoadedStream: function BasePdfManager_requestLoadedStream() {
+ return new NotImplementedException();
+ },
+
+ sendProgressiveData: function BasePdfManager_sendProgressiveData(chunk) {
+ return new NotImplementedException();
+ },
+
+ updatePassword: function BasePdfManager_updatePassword(password) {
+ this.pdfDocument.xref.password = this.password = password;
+ if (this._passwordChangedCapability) {
+ this._passwordChangedCapability.resolve();
+ }
+ },
+
+ passwordChanged: function BasePdfManager_passwordChanged() {
+ this._passwordChangedCapability = createPromiseCapability();
+ return this._passwordChangedCapability.promise;
+ },
+
+ terminate: function BasePdfManager_terminate() {
+ return new NotImplementedException();
+ }
+ };
+
+ return BasePdfManager;
+})();
+
+var LocalPdfManager = (function LocalPdfManagerClosure() {
+ function LocalPdfManager(data, password) {
+ var stream = new Stream(data);
+ this.pdfDocument = new PDFDocument(this, stream, password);
+ this._loadedStreamCapability = createPromiseCapability();
+ this._loadedStreamCapability.resolve(stream);
+ }
+
+ LocalPdfManager.prototype = Object.create(BasePdfManager.prototype);
+ LocalPdfManager.prototype.constructor = LocalPdfManager;
+
+ LocalPdfManager.prototype.ensure =
+ function LocalPdfManager_ensure(obj, prop, args) {
+ return new Promise(function (resolve, reject) {
+ try {
+ var value = obj[prop];
+ var result;
+ if (typeof value === 'function') {
+ result = value.apply(obj, args);
+ } else {
+ result = value;
+ }
+ resolve(result);
+ } catch (e) {
+ reject(e);
+ }
+ });
+ };
+
+ LocalPdfManager.prototype.requestRange =
+ function LocalPdfManager_requestRange(begin, end) {
+ return Promise.resolve();
+ };
+
+ LocalPdfManager.prototype.requestLoadedStream =
+ function LocalPdfManager_requestLoadedStream() {
+ };
+
+ LocalPdfManager.prototype.onLoadedStream =
+ function LocalPdfManager_getLoadedStream() {
+ return this._loadedStreamCapability.promise;
+ };
+
+ LocalPdfManager.prototype.terminate =
+ function LocalPdfManager_terminate() {
+ return;
+ };
+
+ return LocalPdfManager;
+})();
+
+var NetworkPdfManager = (function NetworkPdfManagerClosure() {
+ function NetworkPdfManager(args, msgHandler) {
+
+ this.msgHandler = msgHandler;
+
+ var params = {
+ msgHandler: msgHandler,
+ httpHeaders: args.httpHeaders,
+ withCredentials: args.withCredentials,
+ chunkedViewerLoading: args.chunkedViewerLoading,
+ disableAutoFetch: args.disableAutoFetch,
+ initialData: args.initialData
+ };
+ this.streamManager = new ChunkedStreamManager(args.length, RANGE_CHUNK_SIZE,
+ args.url, params);
+
+ this.pdfDocument = new PDFDocument(this, this.streamManager.getStream(),
+ args.password);
+ }
+
+ NetworkPdfManager.prototype = Object.create(BasePdfManager.prototype);
+ NetworkPdfManager.prototype.constructor = NetworkPdfManager;
+
+ NetworkPdfManager.prototype.ensure =
+ function NetworkPdfManager_ensure(obj, prop, args) {
+ var pdfManager = this;
+
+ return new Promise(function (resolve, reject) {
+ function ensureHelper() {
+ try {
+ var result;
+ var value = obj[prop];
+ if (typeof value === 'function') {
+ result = value.apply(obj, args);
+ } else {
+ result = value;
+ }
+ resolve(result);
+ } catch(e) {
+ if (!(e instanceof MissingDataException)) {
+ reject(e);
+ return;
+ }
+ pdfManager.streamManager.requestRange(e.begin, e.end, ensureHelper);
+ }
+ }
+
+ ensureHelper();
+ });
+ };
+
+ NetworkPdfManager.prototype.requestRange =
+ function NetworkPdfManager_requestRange(begin, end) {
+ return new Promise(function (resolve) {
+ this.streamManager.requestRange(begin, end, function() {
+ resolve();
+ });
+ }.bind(this));
+ };
+
+ NetworkPdfManager.prototype.requestLoadedStream =
+ function NetworkPdfManager_requestLoadedStream() {
+ this.streamManager.requestAllChunks();
+ };
+
+ NetworkPdfManager.prototype.sendProgressiveData =
+ function NetworkPdfManager_sendProgressiveData(chunk) {
+ this.streamManager.onReceiveData({ chunk: chunk });
+ };
+
+ NetworkPdfManager.prototype.onLoadedStream =
+ function NetworkPdfManager_getLoadedStream() {
+ return this.streamManager.onLoadedStream();
+ };
+
+ NetworkPdfManager.prototype.terminate =
+ function NetworkPdfManager_terminate() {
+ this.streamManager.networkManager.abortAllRequests();
+ };
+
+ return NetworkPdfManager;
+})();
+
+
+var Page = (function PageClosure() {
+
+ var LETTER_SIZE_MEDIABOX = [0, 0, 612, 792];
+
+ function Page(pdfManager, xref, pageIndex, pageDict, ref, fontCache) {
+ this.pdfManager = pdfManager;
+ this.pageIndex = pageIndex;
+ this.pageDict = pageDict;
+ this.xref = xref;
+ this.ref = ref;
+ this.fontCache = fontCache;
+ this.idCounters = {
+ obj: 0
+ };
+ this.resourcesPromise = null;
+ }
+
+ Page.prototype = {
+ getPageProp: function Page_getPageProp(key) {
+ return this.pageDict.get(key);
+ },
+
+ getInheritedPageProp: function Page_inheritPageProp(key) {
+ var dict = this.pageDict;
+ var value = dict.get(key);
+ while (value === undefined) {
+ dict = dict.get('Parent');
+ if (!dict) {
+ break;
+ }
+ value = dict.get(key);
+ }
+ return value;
+ },
+
+ get content() {
+ return this.getPageProp('Contents');
+ },
+
+ get resources() {
+ var value = this.getInheritedPageProp('Resources');
+ // For robustness: The spec states that a \Resources entry has to be
+ // present, but can be empty. Some document omit it still. In this case
+ // return an empty dictionary:
+ if (value === undefined) {
+ value = Dict.empty;
+ }
+ return shadow(this, 'resources', value);
+ },
+
+ get mediaBox() {
+ var obj = this.getInheritedPageProp('MediaBox');
+ // Reset invalid media box to letter size.
+ if (!isArray(obj) || obj.length !== 4) {
+ obj = LETTER_SIZE_MEDIABOX;
+ }
+ return shadow(this, 'mediaBox', obj);
+ },
+
+ get view() {
+ var mediaBox = this.mediaBox;
+ var cropBox = this.getInheritedPageProp('CropBox');
+ if (!isArray(cropBox) || cropBox.length !== 4) {
+ return shadow(this, 'view', mediaBox);
+ }
+
+ // From the spec, 6th ed., p.963:
+ // "The crop, bleed, trim, and art boxes should not ordinarily
+ // extend beyond the boundaries of the media box. If they do, they are
+ // effectively reduced to their intersection with the media box."
+ cropBox = Util.intersect(cropBox, mediaBox);
+ if (!cropBox) {
+ return shadow(this, 'view', mediaBox);
+ }
+ return shadow(this, 'view', cropBox);
+ },
+
+ get annotationRefs() {
+ return shadow(this, 'annotationRefs',
+ this.getInheritedPageProp('Annots'));
+ },
+
+ get rotate() {
+ var rotate = this.getInheritedPageProp('Rotate') || 0;
+ // Normalize rotation so it's a multiple of 90 and between 0 and 270
+ if (rotate % 90 !== 0) {
+ rotate = 0;
+ } else if (rotate >= 360) {
+ rotate = rotate % 360;
+ } else if (rotate < 0) {
+ // The spec doesn't cover negatives, assume its counterclockwise
+ // rotation. The following is the other implementation of modulo.
+ rotate = ((rotate % 360) + 360) % 360;
+ }
+ return shadow(this, 'rotate', rotate);
+ },
+
+ getContentStream: function Page_getContentStream() {
+ var content = this.content;
+ var stream;
+ if (isArray(content)) {
+ // fetching items
+ var xref = this.xref;
+ var i, n = content.length;
+ var streams = [];
+ for (i = 0; i < n; ++i) {
+ streams.push(xref.fetchIfRef(content[i]));
+ }
+ stream = new StreamsSequenceStream(streams);
+ } else if (isStream(content)) {
+ stream = content;
+ } else {
+ // replacing non-existent page content with empty one
+ stream = new NullStream();
+ }
+ return stream;
+ },
+
+ loadResources: function Page_loadResources(keys) {
+ if (!this.resourcesPromise) {
+ // TODO: add async getInheritedPageProp and remove this.
+ this.resourcesPromise = this.pdfManager.ensure(this, 'resources');
+ }
+ return this.resourcesPromise.then(function resourceSuccess() {
+ var objectLoader = new ObjectLoader(this.resources.map,
+ keys,
+ this.xref);
+ return objectLoader.load();
+ }.bind(this));
+ },
+
+ getOperatorList: function Page_getOperatorList(handler, intent) {
+ var self = this;
+
+ var pdfManager = this.pdfManager;
+ var contentStreamPromise = pdfManager.ensure(this, 'getContentStream',
+ []);
+ var resourcesPromise = this.loadResources([
+ 'ExtGState',
+ 'ColorSpace',
+ 'Pattern',
+ 'Shading',
+ 'XObject',
+ 'Font'
+ // ProcSet
+ // Properties
+ ]);
+
+ var partialEvaluator = new PartialEvaluator(pdfManager, this.xref,
+ handler, this.pageIndex,
+ 'p' + this.pageIndex + '_',
+ this.idCounters,
+ this.fontCache);
+
+ var dataPromises = Promise.all([contentStreamPromise, resourcesPromise]);
+ var pageListPromise = dataPromises.then(function(data) {
+ var contentStream = data[0];
+ var opList = new OperatorList(intent, handler, self.pageIndex);
+
+ handler.send('StartRenderPage', {
+ transparency: partialEvaluator.hasBlendModes(self.resources),
+ pageIndex: self.pageIndex,
+ intent: intent
+ });
+ return partialEvaluator.getOperatorList(contentStream, self.resources,
+ opList).then(function () {
+ return opList;
+ });
+ });
+
+ var annotationsPromise = pdfManager.ensure(this, 'annotations');
+ return Promise.all([pageListPromise, annotationsPromise]).then(
+ function(datas) {
+ var pageOpList = datas[0];
+ var annotations = datas[1];
+
+ if (annotations.length === 0) {
+ pageOpList.flush(true);
+ return pageOpList;
+ }
+
+ var annotationsReadyPromise = Annotation.appendToOperatorList(
+ annotations, pageOpList, pdfManager, partialEvaluator, intent);
+ return annotationsReadyPromise.then(function () {
+ pageOpList.flush(true);
+ return pageOpList;
+ });
+ });
+ },
+
+ extractTextContent: function Page_extractTextContent() {
+ var handler = {
+ on: function nullHandlerOn() {},
+ send: function nullHandlerSend() {}
+ };
+
+ var self = this;
+
+ var pdfManager = this.pdfManager;
+ var contentStreamPromise = pdfManager.ensure(this, 'getContentStream',
+ []);
+
+ var resourcesPromise = this.loadResources([
+ 'ExtGState',
+ 'XObject',
+ 'Font'
+ ]);
+
+ var dataPromises = Promise.all([contentStreamPromise,
+ resourcesPromise]);
+ return dataPromises.then(function(data) {
+ var contentStream = data[0];
+ var partialEvaluator = new PartialEvaluator(pdfManager, self.xref,
+ handler, self.pageIndex,
+ 'p' + self.pageIndex + '_',
+ self.idCounters,
+ self.fontCache);
+
+ return partialEvaluator.getTextContent(contentStream,
+ self.resources);
+ });
+ },
+
+ getAnnotationsData: function Page_getAnnotationsData() {
+ var annotations = this.annotations;
+ var annotationsData = [];
+ for (var i = 0, n = annotations.length; i < n; ++i) {
+ annotationsData.push(annotations[i].getData());
+ }
+ return annotationsData;
+ },
+
+ get annotations() {
+ var annotations = [];
+ var annotationRefs = (this.annotationRefs || []);
+ for (var i = 0, n = annotationRefs.length; i < n; ++i) {
+ var annotationRef = annotationRefs[i];
+ var annotation = Annotation.fromRef(this.xref, annotationRef);
+ if (annotation) {
+ annotations.push(annotation);
+ }
+ }
+ return shadow(this, 'annotations', annotations);
+ }
+ };
+
+ return Page;
+})();
+
+/**
+ * The `PDFDocument` holds all the data of the PDF file. Compared to the
+ * `PDFDoc`, this one doesn't have any job management code.
+ * Right now there exists one PDFDocument on the main thread + one object
+ * for each worker. If there is no worker support enabled, there are two
+ * `PDFDocument` objects on the main thread created.
+ */
+var PDFDocument = (function PDFDocumentClosure() {
+ var FINGERPRINT_FIRST_BYTES = 1024;
+ var EMPTY_FINGERPRINT = '\x00\x00\x00\x00\x00\x00\x00' +
+ '\x00\x00\x00\x00\x00\x00\x00\x00\x00';
+
+ function PDFDocument(pdfManager, arg, password) {
+ if (isStream(arg)) {
+ init.call(this, pdfManager, arg, password);
+ } else if (isArrayBuffer(arg)) {
+ init.call(this, pdfManager, new Stream(arg), password);
+ } else {
+ error('PDFDocument: Unknown argument type');
+ }
+ }
+
+ function init(pdfManager, stream, password) {
+ assert(stream.length > 0, 'stream must have data');
+ this.pdfManager = pdfManager;
+ this.stream = stream;
+ var xref = new XRef(this.stream, password, pdfManager);
+ this.xref = xref;
+ }
+
+ function find(stream, needle, limit, backwards) {
+ var pos = stream.pos;
+ var end = stream.end;
+ var strBuf = [];
+ if (pos + limit > end) {
+ limit = end - pos;
+ }
+ for (var n = 0; n < limit; ++n) {
+ strBuf.push(String.fromCharCode(stream.getByte()));
+ }
+ var str = strBuf.join('');
+ stream.pos = pos;
+ var index = backwards ? str.lastIndexOf(needle) : str.indexOf(needle);
+ if (index === -1) {
+ return false; /* not found */
+ }
+ stream.pos += index;
+ return true; /* found */
+ }
+
+ var DocumentInfoValidators = {
+ get entries() {
+ // Lazily build this since all the validation functions below are not
+ // defined until after this file loads.
+ return shadow(this, 'entries', {
+ Title: isString,
+ Author: isString,
+ Subject: isString,
+ Keywords: isString,
+ Creator: isString,
+ Producer: isString,
+ CreationDate: isString,
+ ModDate: isString,
+ Trapped: isName
+ });
+ }
+ };
+
+ PDFDocument.prototype = {
+ parse: function PDFDocument_parse(recoveryMode) {
+ this.setup(recoveryMode);
+ try {
+ // checking if AcroForm is present
+ this.acroForm = this.catalog.catDict.get('AcroForm');
+ if (this.acroForm) {
+ this.xfa = this.acroForm.get('XFA');
+ var fields = this.acroForm.get('Fields');
+ if ((!fields || !isArray(fields) || fields.length === 0) &&
+ !this.xfa) {
+ // no fields and no XFA -- not a form (?)
+ this.acroForm = null;
+ }
+ }
+ } catch (ex) {
+ info('Something wrong with AcroForm entry');
+ this.acroForm = null;
+ }
+ },
+
+ get linearization() {
+ var linearization = null;
+ if (this.stream.length) {
+ try {
+ linearization = Linearization.create(this.stream);
+ } catch (err) {
+ if (err instanceof MissingDataException) {
+ throw err;
+ }
+ info(err);
+ }
+ }
+ // shadow the prototype getter with a data property
+ return shadow(this, 'linearization', linearization);
+ },
+ get startXRef() {
+ var stream = this.stream;
+ var startXRef = 0;
+ var linearization = this.linearization;
+ if (linearization) {
+ // Find end of first obj.
+ stream.reset();
+ if (find(stream, 'endobj', 1024)) {
+ startXRef = stream.pos + 6;
+ }
+ } else {
+ // Find startxref by jumping backward from the end of the file.
+ var step = 1024;
+ var found = false, pos = stream.end;
+ while (!found && pos > 0) {
+ pos -= step - 'startxref'.length;
+ if (pos < 0) {
+ pos = 0;
+ }
+ stream.pos = pos;
+ found = find(stream, 'startxref', step, true);
+ }
+ if (found) {
+ stream.skip(9);
+ var ch;
+ do {
+ ch = stream.getByte();
+ } while (Lexer.isSpace(ch));
+ var str = '';
+ while (ch >= 0x20 && ch <= 0x39) { // < '9'
+ str += String.fromCharCode(ch);
+ ch = stream.getByte();
+ }
+ startXRef = parseInt(str, 10);
+ if (isNaN(startXRef)) {
+ startXRef = 0;
+ }
+ }
+ }
+ // shadow the prototype getter with a data property
+ return shadow(this, 'startXRef', startXRef);
+ },
+ get mainXRefEntriesOffset() {
+ var mainXRefEntriesOffset = 0;
+ var linearization = this.linearization;
+ if (linearization) {
+ mainXRefEntriesOffset = linearization.mainXRefEntriesOffset;
+ }
+ // shadow the prototype getter with a data property
+ return shadow(this, 'mainXRefEntriesOffset', mainXRefEntriesOffset);
+ },
+ // Find the header, remove leading garbage and setup the stream
+ // starting from the header.
+ checkHeader: function PDFDocument_checkHeader() {
+ var stream = this.stream;
+ stream.reset();
+ if (find(stream, '%PDF-', 1024)) {
+ // Found the header, trim off any garbage before it.
+ stream.moveStart();
+ // Reading file format version
+ var MAX_VERSION_LENGTH = 12;
+ var version = '', ch;
+ while ((ch = stream.getByte()) > 0x20) { // SPACE
+ if (version.length >= MAX_VERSION_LENGTH) {
+ break;
+ }
+ version += String.fromCharCode(ch);
+ }
+ // removing "%PDF-"-prefix
+ this.pdfFormatVersion = version.substring(5);
+ return;
+ }
+ // May not be a PDF file, continue anyway.
+ },
+ parseStartXRef: function PDFDocument_parseStartXRef() {
+ var startXRef = this.startXRef;
+ this.xref.setStartXRef(startXRef);
+ },
+ setup: function PDFDocument_setup(recoveryMode) {
+ this.xref.parse(recoveryMode);
+ this.catalog = new Catalog(this.pdfManager, this.xref);
+ },
+ get numPages() {
+ var linearization = this.linearization;
+ var num = linearization ? linearization.numPages : this.catalog.numPages;
+ // shadow the prototype getter
+ return shadow(this, 'numPages', num);
+ },
+ get documentInfo() {
+ var docInfo = {
+ PDFFormatVersion: this.pdfFormatVersion,
+ IsAcroFormPresent: !!this.acroForm,
+ IsXFAPresent: !!this.xfa
+ };
+ var infoDict;
+ try {
+ infoDict = this.xref.trailer.get('Info');
+ } catch (err) {
+ info('The document information dictionary is invalid.');
+ }
+ if (infoDict) {
+ var validEntries = DocumentInfoValidators.entries;
+ // Only fill the document info with valid entries from the spec.
+ for (var key in validEntries) {
+ if (infoDict.has(key)) {
+ var value = infoDict.get(key);
+ // Make sure the value conforms to the spec.
+ if (validEntries[key](value)) {
+ docInfo[key] = (typeof value !== 'string' ?
+ value : stringToPDFString(value));
+ } else {
+ info('Bad value in document info for "' + key + '"');
+ }
+ }
+ }
+ }
+ return shadow(this, 'documentInfo', docInfo);
+ },
+ get fingerprint() {
+ var xref = this.xref, idArray, hash, fileID = '';
+
+ if (xref.trailer.has('ID')) {
+ idArray = xref.trailer.get('ID');
+ }
+ if (idArray && isArray(idArray) && idArray[0] !== EMPTY_FINGERPRINT) {
+ hash = stringToBytes(idArray[0]);
+ } else {
+ if (this.stream.ensureRange) {
+ this.stream.ensureRange(0,
+ Math.min(FINGERPRINT_FIRST_BYTES, this.stream.end));
+ }
+ hash = calculateMD5(this.stream.bytes.subarray(0,
+ FINGERPRINT_FIRST_BYTES), 0, FINGERPRINT_FIRST_BYTES);
+ }
+
+ for (var i = 0, n = hash.length; i < n; i++) {
+ var hex = hash[i].toString(16);
+ fileID += hex.length === 1 ? '0' + hex : hex;
+ }
+
+ return shadow(this, 'fingerprint', fileID);
+ },
+
+ getPage: function PDFDocument_getPage(pageIndex) {
+ return this.catalog.getPage(pageIndex);
+ },
+
+ cleanup: function PDFDocument_cleanup() {
+ return this.catalog.cleanup();
+ }
+ };
+
+ return PDFDocument;
+})();
+
+
+var Name = (function NameClosure() {
+ function Name(name) {
+ this.name = name;
+ }
+
+ Name.prototype = {};
+
+ var nameCache = {};
+
+ Name.get = function Name_get(name) {
+ var nameValue = nameCache[name];
+ return (nameValue ? nameValue : (nameCache[name] = new Name(name)));
+ };
+
+ return Name;
+})();
+
+var Cmd = (function CmdClosure() {
+ function Cmd(cmd) {
+ this.cmd = cmd;
+ }
+
+ Cmd.prototype = {};
+
+ var cmdCache = {};
+
+ Cmd.get = function Cmd_get(cmd) {
+ var cmdValue = cmdCache[cmd];
+ return (cmdValue ? cmdValue : (cmdCache[cmd] = new Cmd(cmd)));
+ };
+
+ return Cmd;
+})();
+
+var Dict = (function DictClosure() {
+ var nonSerializable = function nonSerializableClosure() {
+ return nonSerializable; // creating closure on some variable
+ };
+
+ var GETALL_DICTIONARY_TYPES_WHITELIST = {
+ 'Background': true,
+ 'ExtGState': true,
+ 'Halftone': true,
+ 'Layout': true,
+ 'Mask': true,
+ 'Pagination': true,
+ 'Printing': true
+ };
+
+ function isRecursionAllowedFor(dict) {
+ if (!isName(dict.Type)) {
+ return true;
+ }
+ var dictType = dict.Type.name;
+ return GETALL_DICTIONARY_TYPES_WHITELIST[dictType] === true;
+ }
+
+ // xref is optional
+ function Dict(xref) {
+ // Map should only be used internally, use functions below to access.
+ this.map = Object.create(null);
+ this.xref = xref;
+ this.objId = null;
+ this.__nonSerializable__ = nonSerializable; // disable cloning of the Dict
+ }
+
+ Dict.prototype = {
+ assignXref: function Dict_assignXref(newXref) {
+ this.xref = newXref;
+ },
+
+ // automatically dereferences Ref objects
+ get: function Dict_get(key1, key2, key3) {
+ var value;
+ var xref = this.xref;
+ if (typeof (value = this.map[key1]) !== 'undefined' || key1 in this.map ||
+ typeof key2 === 'undefined') {
+ return xref ? xref.fetchIfRef(value) : value;
+ }
+ if (typeof (value = this.map[key2]) !== 'undefined' || key2 in this.map ||
+ typeof key3 === 'undefined') {
+ return xref ? xref.fetchIfRef(value) : value;
+ }
+ value = this.map[key3] || null;
+ return xref ? xref.fetchIfRef(value) : value;
+ },
+
+ // Same as get(), but returns a promise and uses fetchIfRefAsync().
+ getAsync: function Dict_getAsync(key1, key2, key3) {
+ var value;
+ var xref = this.xref;
+ if (typeof (value = this.map[key1]) !== 'undefined' || key1 in this.map ||
+ typeof key2 === 'undefined') {
+ if (xref) {
+ return xref.fetchIfRefAsync(value);
+ }
+ return Promise.resolve(value);
+ }
+ if (typeof (value = this.map[key2]) !== 'undefined' || key2 in this.map ||
+ typeof key3 === 'undefined') {
+ if (xref) {
+ return xref.fetchIfRefAsync(value);
+ }
+ return Promise.resolve(value);
+ }
+ value = this.map[key3] || null;
+ if (xref) {
+ return xref.fetchIfRefAsync(value);
+ }
+ return Promise.resolve(value);
+ },
+
+ // no dereferencing
+ getRaw: function Dict_getRaw(key) {
+ return this.map[key];
+ },
+
+ // creates new map and dereferences all Refs
+ getAll: function Dict_getAll() {
+ var all = Object.create(null);
+ var queue = null;
+ var key, obj;
+ for (key in this.map) {
+ obj = this.get(key);
+ if (obj instanceof Dict) {
+ if (isRecursionAllowedFor(obj)) {
+ (queue || (queue = [])).push({target: all, key: key, obj: obj});
+ } else {
+ all[key] = this.getRaw(key);
+ }
+ } else {
+ all[key] = obj;
+ }
+ }
+ if (!queue) {
+ return all;
+ }
+
+ // trying to take cyclic references into the account
+ var processed = Object.create(null);
+ while (queue.length > 0) {
+ var item = queue.shift();
+ var itemObj = item.obj;
+ var objId = itemObj.objId;
+ if (objId && objId in processed) {
+ item.target[item.key] = processed[objId];
+ continue;
+ }
+ var dereferenced = Object.create(null);
+ for (key in itemObj.map) {
+ obj = itemObj.get(key);
+ if (obj instanceof Dict) {
+ if (isRecursionAllowedFor(obj)) {
+ queue.push({target: dereferenced, key: key, obj: obj});
+ } else {
+ dereferenced[key] = itemObj.getRaw(key);
+ }
+ } else {
+ dereferenced[key] = obj;
+ }
+ }
+ if (objId) {
+ processed[objId] = dereferenced;
+ }
+ item.target[item.key] = dereferenced;
+ }
+ return all;
+ },
+
+ getKeys: function Dict_getKeys() {
+ return Object.keys(this.map);
+ },
+
+ set: function Dict_set(key, value) {
+ this.map[key] = value;
+ },
+
+ has: function Dict_has(key) {
+ return key in this.map;
+ },
+
+ forEach: function Dict_forEach(callback) {
+ for (var key in this.map) {
+ callback(key, this.get(key));
+ }
+ }
+ };
+
+ Dict.empty = new Dict(null);
+
+ return Dict;
+})();
+
+var Ref = (function RefClosure() {
+ function Ref(num, gen) {
+ this.num = num;
+ this.gen = gen;
+ }
+
+ Ref.prototype = {
+ toString: function Ref_toString() {
+ // This function is hot, so we make the string as compact as possible.
+ // |this.gen| is almost always zero, so we treat that case specially.
+ var str = this.num + 'R';
+ if (this.gen !== 0) {
+ str += this.gen;
+ }
+ return str;
+ }
+ };
+
+ return Ref;
+})();
+
+// The reference is identified by number and generation.
+// This structure stores only one instance of the reference.
+var RefSet = (function RefSetClosure() {
+ function RefSet() {
+ this.dict = {};
+ }
+
+ RefSet.prototype = {
+ has: function RefSet_has(ref) {
+ return ref.toString() in this.dict;
+ },
+
+ put: function RefSet_put(ref) {
+ this.dict[ref.toString()] = true;
+ },
+
+ remove: function RefSet_remove(ref) {
+ delete this.dict[ref.toString()];
+ }
+ };
+
+ return RefSet;
+})();
+
+var RefSetCache = (function RefSetCacheClosure() {
+ function RefSetCache() {
+ this.dict = Object.create(null);
+ }
+
+ RefSetCache.prototype = {
+ get: function RefSetCache_get(ref) {
+ return this.dict[ref.toString()];
+ },
+
+ has: function RefSetCache_has(ref) {
+ return ref.toString() in this.dict;
+ },
+
+ put: function RefSetCache_put(ref, obj) {
+ this.dict[ref.toString()] = obj;
+ },
+
+ putAlias: function RefSetCache_putAlias(ref, aliasRef) {
+ this.dict[ref.toString()] = this.get(aliasRef);
+ },
+
+ forEach: function RefSetCache_forEach(fn, thisArg) {
+ for (var i in this.dict) {
+ fn.call(thisArg, this.dict[i]);
+ }
+ },
+
+ clear: function RefSetCache_clear() {
+ this.dict = Object.create(null);
+ }
+ };
+
+ return RefSetCache;
+})();
+
+var Catalog = (function CatalogClosure() {
+ function Catalog(pdfManager, xref) {
+ this.pdfManager = pdfManager;
+ this.xref = xref;
+ this.catDict = xref.getCatalogObj();
+ this.fontCache = new RefSetCache();
+ assert(isDict(this.catDict),
+ 'catalog object is not a dictionary');
+
+ this.pagePromises = [];
+ }
+
+ Catalog.prototype = {
+ get metadata() {
+ var streamRef = this.catDict.getRaw('Metadata');
+ if (!isRef(streamRef)) {
+ return shadow(this, 'metadata', null);
+ }
+
+ var encryptMetadata = (!this.xref.encrypt ? false :
+ this.xref.encrypt.encryptMetadata);
+
+ var stream = this.xref.fetch(streamRef, !encryptMetadata);
+ var metadata;
+ if (stream && isDict(stream.dict)) {
+ var type = stream.dict.get('Type');
+ var subtype = stream.dict.get('Subtype');
+
+ if (isName(type) && isName(subtype) &&
+ type.name === 'Metadata' && subtype.name === 'XML') {
+ // XXX: This should examine the charset the XML document defines,
+ // however since there are currently no real means to decode
+ // arbitrary charsets, let's just hope that the author of the PDF
+ // was reasonable enough to stick with the XML default charset,
+ // which is UTF-8.
+ try {
+ metadata = stringToUTF8String(bytesToString(stream.getBytes()));
+ } catch (e) {
+ info('Skipping invalid metadata.');
+ }
+ }
+ }
+
+ return shadow(this, 'metadata', metadata);
+ },
+ get toplevelPagesDict() {
+ var pagesObj = this.catDict.get('Pages');
+ assert(isDict(pagesObj), 'invalid top-level pages dictionary');
+ // shadow the prototype getter
+ return shadow(this, 'toplevelPagesDict', pagesObj);
+ },
+ get documentOutline() {
+ var obj = null;
+ try {
+ obj = this.readDocumentOutline();
+ } catch (ex) {
+ if (ex instanceof MissingDataException) {
+ throw ex;
+ }
+ warn('Unable to read document outline');
+ }
+ return shadow(this, 'documentOutline', obj);
+ },
+ readDocumentOutline: function Catalog_readDocumentOutline() {
+ var xref = this.xref;
+ var obj = this.catDict.get('Outlines');
+ var root = { items: [] };
+ if (isDict(obj)) {
+ obj = obj.getRaw('First');
+ var processed = new RefSet();
+ if (isRef(obj)) {
+ var queue = [{obj: obj, parent: root}];
+ // to avoid recursion keeping track of the items
+ // in the processed dictionary
+ processed.put(obj);
+ while (queue.length > 0) {
+ var i = queue.shift();
+ var outlineDict = xref.fetchIfRef(i.obj);
+ if (outlineDict === null) {
+ continue;
+ }
+ if (!outlineDict.has('Title')) {
+ error('Invalid outline item');
+ }
+ var dest = outlineDict.get('A');
+ if (dest) {
+ dest = dest.get('D');
+ } else if (outlineDict.has('Dest')) {
+ dest = outlineDict.getRaw('Dest');
+ if (isName(dest)) {
+ dest = dest.name;
+ }
+ }
+ var title = outlineDict.get('Title');
+ var outlineItem = {
+ dest: dest,
+ title: stringToPDFString(title),
+ color: outlineDict.get('C') || [0, 0, 0],
+ count: outlineDict.get('Count'),
+ bold: !!(outlineDict.get('F') & 2),
+ italic: !!(outlineDict.get('F') & 1),
+ items: []
+ };
+ i.parent.items.push(outlineItem);
+ obj = outlineDict.getRaw('First');
+ if (isRef(obj) && !processed.has(obj)) {
+ queue.push({obj: obj, parent: outlineItem});
+ processed.put(obj);
+ }
+ obj = outlineDict.getRaw('Next');
+ if (isRef(obj) && !processed.has(obj)) {
+ queue.push({obj: obj, parent: i.parent});
+ processed.put(obj);
+ }
+ }
+ }
+ }
+ return (root.items.length > 0 ? root.items : null);
+ },
+ get numPages() {
+ var obj = this.toplevelPagesDict.get('Count');
+ assert(
+ isInt(obj),
+ 'page count in top level pages object is not an integer'
+ );
+ // shadow the prototype getter
+ return shadow(this, 'num', obj);
+ },
+ get destinations() {
+ function fetchDestination(dest) {
+ return isDict(dest) ? dest.get('D') : dest;
+ }
+
+ var xref = this.xref;
+ var dests = {}, nameTreeRef, nameDictionaryRef;
+ var obj = this.catDict.get('Names');
+ if (obj && obj.has('Dests')) {
+ nameTreeRef = obj.getRaw('Dests');
+ } else if (this.catDict.has('Dests')) {
+ nameDictionaryRef = this.catDict.get('Dests');
+ }
+
+ if (nameDictionaryRef) {
+ // reading simple destination dictionary
+ obj = nameDictionaryRef;
+ obj.forEach(function catalogForEach(key, value) {
+ if (!value) {
+ return;
+ }
+ dests[key] = fetchDestination(value);
+ });
+ }
+ if (nameTreeRef) {
+ var nameTree = new NameTree(nameTreeRef, xref);
+ var names = nameTree.getAll();
+ for (var name in names) {
+ if (!names.hasOwnProperty(name)) {
+ continue;
+ }
+ dests[name] = fetchDestination(names[name]);
+ }
+ }
+ return shadow(this, 'destinations', dests);
+ },
+ getDestination: function Catalog_getDestination(destinationId) {
+ function fetchDestination(dest) {
+ return isDict(dest) ? dest.get('D') : dest;
+ }
+
+ var xref = this.xref;
+ var dest, nameTreeRef, nameDictionaryRef;
+ var obj = this.catDict.get('Names');
+ if (obj && obj.has('Dests')) {
+ nameTreeRef = obj.getRaw('Dests');
+ } else if (this.catDict.has('Dests')) {
+ nameDictionaryRef = this.catDict.get('Dests');
+ }
+
+ if (nameDictionaryRef) {
+ // reading simple destination dictionary
+ obj = nameDictionaryRef;
+ obj.forEach(function catalogForEach(key, value) {
+ if (!value) {
+ return;
+ }
+ if (key === destinationId) {
+ dest = fetchDestination(value);
+ }
+ });
+ }
+ if (nameTreeRef) {
+ var nameTree = new NameTree(nameTreeRef, xref);
+ dest = fetchDestination(nameTree.get(destinationId));
+ }
+ return dest;
+ },
+ get attachments() {
+ var xref = this.xref;
+ var attachments = null, nameTreeRef;
+ var obj = this.catDict.get('Names');
+ if (obj) {
+ nameTreeRef = obj.getRaw('EmbeddedFiles');
+ }
+
+ if (nameTreeRef) {
+ var nameTree = new NameTree(nameTreeRef, xref);
+ var names = nameTree.getAll();
+ for (var name in names) {
+ if (!names.hasOwnProperty(name)) {
+ continue;
+ }
+ var fs = new FileSpec(names[name], xref);
+ if (!attachments) {
+ attachments = {};
+ }
+ attachments[stringToPDFString(name)] = fs.serializable;
+ }
+ }
+ return shadow(this, 'attachments', attachments);
+ },
+ get javaScript() {
+ var xref = this.xref;
+ var obj = this.catDict.get('Names');
+
+ var javaScript = [];
+ if (obj && obj.has('JavaScript')) {
+ var nameTree = new NameTree(obj.getRaw('JavaScript'), xref);
+ var names = nameTree.getAll();
+ for (var name in names) {
+ if (!names.hasOwnProperty(name)) {
+ continue;
+ }
+ // We don't really use the JavaScript right now. This code is
+ // defensive so we don't cause errors on document load.
+ var jsDict = names[name];
+ if (!isDict(jsDict)) {
+ continue;
+ }
+ var type = jsDict.get('S');
+ if (!isName(type) || type.name !== 'JavaScript') {
+ continue;
+ }
+ var js = jsDict.get('JS');
+ if (!isString(js) && !isStream(js)) {
+ continue;
+ }
+ if (isStream(js)) {
+ js = bytesToString(js.getBytes());
+ }
+ javaScript.push(stringToPDFString(js));
+ }
+ }
+
+ // Append OpenAction actions to javaScript array
+ var openactionDict = this.catDict.get('OpenAction');
+ if (isDict(openactionDict)) {
+ var objType = openactionDict.get('Type');
+ var actionType = openactionDict.get('S');
+ var action = openactionDict.get('N');
+ var isPrintAction = (isName(objType) && objType.name === 'Action' &&
+ isName(actionType) && actionType.name === 'Named' &&
+ isName(action) && action.name === 'Print');
+
+ if (isPrintAction) {
+ javaScript.push('print(true);');
+ }
+ }
+
+ return shadow(this, 'javaScript', javaScript);
+ },
+
+ cleanup: function Catalog_cleanup() {
+ var promises = [];
+ this.fontCache.forEach(function (promise) {
+ promises.push(promise);
+ });
+ return Promise.all(promises).then(function (translatedFonts) {
+ for (var i = 0, ii = translatedFonts.length; i < ii; i++) {
+ var font = translatedFonts[i].dict;
+ delete font.translated;
+ }
+ this.fontCache.clear();
+ }.bind(this));
+ },
+
+ getPage: function Catalog_getPage(pageIndex) {
+ if (!(pageIndex in this.pagePromises)) {
+ this.pagePromises[pageIndex] = this.getPageDict(pageIndex).then(
+ function (a) {
+ var dict = a[0];
+ var ref = a[1];
+ return new Page(this.pdfManager, this.xref, pageIndex, dict, ref,
+ this.fontCache);
+ }.bind(this)
+ );
+ }
+ return this.pagePromises[pageIndex];
+ },
+
+ getPageDict: function Catalog_getPageDict(pageIndex) {
+ var capability = createPromiseCapability();
+ var nodesToVisit = [this.catDict.getRaw('Pages')];
+ var currentPageIndex = 0;
+ var xref = this.xref;
+ var checkAllKids = false;
+
+ function next() {
+ while (nodesToVisit.length) {
+ var currentNode = nodesToVisit.pop();
+
+ if (isRef(currentNode)) {
+ xref.fetchAsync(currentNode).then(function (obj) {
+ if (isDict(obj, 'Page') || (isDict(obj) && !obj.has('Kids'))) {
+ if (pageIndex === currentPageIndex) {
+ capability.resolve([obj, currentNode]);
+ } else {
+ currentPageIndex++;
+ next();
+ }
+ return;
+ }
+ nodesToVisit.push(obj);
+ next();
+ }, capability.reject);
+ return;
+ }
+
+ // Must be a child page dictionary.
+ assert(
+ isDict(currentNode),
+ 'page dictionary kid reference points to wrong type of object'
+ );
+ var count = currentNode.get('Count');
+ // If the current node doesn't have any children, avoid getting stuck
+ // in an empty node further down in the tree (see issue5644.pdf).
+ if (count === 0) {
+ checkAllKids = true;
+ }
+ // Skip nodes where the page can't be.
+ if (currentPageIndex + count <= pageIndex) {
+ currentPageIndex += count;
+ continue;
+ }
+
+ var kids = currentNode.get('Kids');
+ assert(isArray(kids), 'page dictionary kids object is not an array');
+ if (!checkAllKids && count === kids.length) {
+ // Nodes that don't have the page have been skipped and this is the
+ // bottom of the tree which means the page requested must be a
+ // descendant of this pages node. Ideally we would just resolve the
+ // promise with the page ref here, but there is the case where more
+ // pages nodes could link to single a page (see issue 3666 pdf). To
+ // handle this push it back on the queue so if it is a pages node it
+ // will be descended into.
+ nodesToVisit = [kids[pageIndex - currentPageIndex]];
+ currentPageIndex = pageIndex;
+ continue;
+ } else {
+ for (var last = kids.length - 1; last >= 0; last--) {
+ nodesToVisit.push(kids[last]);
+ }
+ }
+ }
+ capability.reject('Page index ' + pageIndex + ' not found.');
+ }
+ next();
+ return capability.promise;
+ },
+
+ getPageIndex: function Catalog_getPageIndex(ref) {
+ // The page tree nodes have the count of all the leaves below them. To get
+ // how many pages are before we just have to walk up the tree and keep
+ // adding the count of siblings to the left of the node.
+ var xref = this.xref;
+ function pagesBeforeRef(kidRef) {
+ var total = 0;
+ var parentRef;
+ return xref.fetchAsync(kidRef).then(function (node) {
+ if (!node) {
+ return null;
+ }
+ parentRef = node.getRaw('Parent');
+ return node.getAsync('Parent');
+ }).then(function (parent) {
+ if (!parent) {
+ return null;
+ }
+ return parent.getAsync('Kids');
+ }).then(function (kids) {
+ if (!kids) {
+ return null;
+ }
+ var kidPromises = [];
+ var found = false;
+ for (var i = 0; i < kids.length; i++) {
+ var kid = kids[i];
+ assert(isRef(kid), 'kids must be a ref');
+ if (kid.num === kidRef.num) {
+ found = true;
+ break;
+ }
+ kidPromises.push(xref.fetchAsync(kid).then(function (kid) {
+ if (kid.has('Count')) {
+ var count = kid.get('Count');
+ total += count;
+ } else { // page leaf node
+ total++;
+ }
+ }));
+ }
+ if (!found) {
+ error('kid ref not found in parents kids');
+ }
+ return Promise.all(kidPromises).then(function () {
+ return [total, parentRef];
+ });
+ });
+ }
+
+ var total = 0;
+ function next(ref) {
+ return pagesBeforeRef(ref).then(function (args) {
+ if (!args) {
+ return total;
+ }
+ var count = args[0];
+ var parentRef = args[1];
+ total += count;
+ return next(parentRef);
+ });
+ }
+
+ return next(ref);
+ }
+ };
+
+ return Catalog;
+})();
+
+var XRef = (function XRefClosure() {
+ function XRef(stream, password) {
+ this.stream = stream;
+ this.entries = [];
+ this.xrefstms = {};
+ // prepare the XRef cache
+ this.cache = [];
+ this.password = password;
+ this.stats = {
+ streamTypes: [],
+ fontTypes: []
+ };
+ }
+
+ XRef.prototype = {
+ setStartXRef: function XRef_setStartXRef(startXRef) {
+ // Store the starting positions of xref tables as we process them
+ // so we can recover from missing data errors
+ this.startXRefQueue = [startXRef];
+ },
+
+ parse: function XRef_parse(recoveryMode) {
+ var trailerDict;
+ if (!recoveryMode) {
+ trailerDict = this.readXRef();
+ } else {
+ warn('Indexing all PDF objects');
+ trailerDict = this.indexObjects();
+ }
+ trailerDict.assignXref(this);
+ this.trailer = trailerDict;
+ var encrypt = trailerDict.get('Encrypt');
+ if (encrypt) {
+ var ids = trailerDict.get('ID');
+ var fileId = (ids && ids.length) ? ids[0] : '';
+ this.encrypt = new CipherTransformFactory(encrypt, fileId,
+ this.password);
+ }
+
+ // get the root dictionary (catalog) object
+ if (!(this.root = trailerDict.get('Root'))) {
+ error('Invalid root reference');
+ }
+ },
+
+ processXRefTable: function XRef_processXRefTable(parser) {
+ if (!('tableState' in this)) {
+ // Stores state of the table as we process it so we can resume
+ // from middle of table in case of missing data error
+ this.tableState = {
+ entryNum: 0,
+ streamPos: parser.lexer.stream.pos,
+ parserBuf1: parser.buf1,
+ parserBuf2: parser.buf2
+ };
+ }
+
+ var obj = this.readXRefTable(parser);
+
+ // Sanity check
+ if (!isCmd(obj, 'trailer')) {
+ error('Invalid XRef table: could not find trailer dictionary');
+ }
+ // Read trailer dictionary, e.g.
+ // trailer
+ // << /Size 22
+ // /Root 20R
+ // /Info 10R
+ // /ID [ <81b14aafa313db63dbd6f981e49f94f4> ]
+ // >>
+ // The parser goes through the entire stream << ... >> and provides
+ // a getter interface for the key-value table
+ var dict = parser.getObj();
+
+ // The pdflib PDF generator can generate a nested trailer dictionary
+ if (!isDict(dict) && dict.dict) {
+ dict = dict.dict;
+ }
+ if (!isDict(dict)) {
+ error('Invalid XRef table: could not parse trailer dictionary');
+ }
+ delete this.tableState;
+
+ return dict;
+ },
+
+ readXRefTable: function XRef_readXRefTable(parser) {
+ // Example of cross-reference table:
+ // xref
+ // 0 1 <-- subsection header (first obj #, obj count)
+ // 0000000000 65535 f <-- actual object (offset, generation #, f/n)
+ // 23 2 <-- subsection header ... and so on ...
+ // 0000025518 00002 n
+ // 0000025635 00000 n
+ // trailer
+ // ...
+
+ var stream = parser.lexer.stream;
+ var tableState = this.tableState;
+ stream.pos = tableState.streamPos;
+ parser.buf1 = tableState.parserBuf1;
+ parser.buf2 = tableState.parserBuf2;
+
+ // Outer loop is over subsection headers
+ var obj;
+
+ while (true) {
+ if (!('firstEntryNum' in tableState) || !('entryCount' in tableState)) {
+ if (isCmd(obj = parser.getObj(), 'trailer')) {
+ break;
+ }
+ tableState.firstEntryNum = obj;
+ tableState.entryCount = parser.getObj();
+ }
+
+ var first = tableState.firstEntryNum;
+ var count = tableState.entryCount;
+ if (!isInt(first) || !isInt(count)) {
+ error('Invalid XRef table: wrong types in subsection header');
+ }
+ // Inner loop is over objects themselves
+ for (var i = tableState.entryNum; i < count; i++) {
+ tableState.streamPos = stream.pos;
+ tableState.entryNum = i;
+ tableState.parserBuf1 = parser.buf1;
+ tableState.parserBuf2 = parser.buf2;
+
+ var entry = {};
+ entry.offset = parser.getObj();
+ entry.gen = parser.getObj();
+ var type = parser.getObj();
+
+ if (isCmd(type, 'f')) {
+ entry.free = true;
+ } else if (isCmd(type, 'n')) {
+ entry.uncompressed = true;
+ }
+
+ // Validate entry obj
+ if (!isInt(entry.offset) || !isInt(entry.gen) ||
+ !(entry.free || entry.uncompressed)) {
+ error('Invalid entry in XRef subsection: ' + first + ', ' + count);
+ }
+
+ if (!this.entries[i + first]) {
+ this.entries[i + first] = entry;
+ }
+ }
+
+ tableState.entryNum = 0;
+ tableState.streamPos = stream.pos;
+ tableState.parserBuf1 = parser.buf1;
+ tableState.parserBuf2 = parser.buf2;
+ delete tableState.firstEntryNum;
+ delete tableState.entryCount;
+ }
+
+ // Per issue 3248: hp scanners generate bad XRef
+ if (first === 1 && this.entries[1] && this.entries[1].free) {
+ // shifting the entries
+ this.entries.shift();
+ }
+
+ // Sanity check: as per spec, first object must be free
+ if (this.entries[0] && !this.entries[0].free) {
+ error('Invalid XRef table: unexpected first object');
+ }
+ return obj;
+ },
+
+ processXRefStream: function XRef_processXRefStream(stream) {
+ if (!('streamState' in this)) {
+ // Stores state of the stream as we process it so we can resume
+ // from middle of stream in case of missing data error
+ var streamParameters = stream.dict;
+ var byteWidths = streamParameters.get('W');
+ var range = streamParameters.get('Index');
+ if (!range) {
+ range = [0, streamParameters.get('Size')];
+ }
+
+ this.streamState = {
+ entryRanges: range,
+ byteWidths: byteWidths,
+ entryNum: 0,
+ streamPos: stream.pos
+ };
+ }
+ this.readXRefStream(stream);
+ delete this.streamState;
+
+ return stream.dict;
+ },
+
+ readXRefStream: function XRef_readXRefStream(stream) {
+ var i, j;
+ var streamState = this.streamState;
+ stream.pos = streamState.streamPos;
+
+ var byteWidths = streamState.byteWidths;
+ var typeFieldWidth = byteWidths[0];
+ var offsetFieldWidth = byteWidths[1];
+ var generationFieldWidth = byteWidths[2];
+
+ var entryRanges = streamState.entryRanges;
+ while (entryRanges.length > 0) {
+ var first = entryRanges[0];
+ var n = entryRanges[1];
+
+ if (!isInt(first) || !isInt(n)) {
+ error('Invalid XRef range fields: ' + first + ', ' + n);
+ }
+ if (!isInt(typeFieldWidth) || !isInt(offsetFieldWidth) ||
+ !isInt(generationFieldWidth)) {
+ error('Invalid XRef entry fields length: ' + first + ', ' + n);
+ }
+ for (i = streamState.entryNum; i < n; ++i) {
+ streamState.entryNum = i;
+ streamState.streamPos = stream.pos;
+
+ var type = 0, offset = 0, generation = 0;
+ for (j = 0; j < typeFieldWidth; ++j) {
+ type = (type << 8) | stream.getByte();
+ }
+ // if type field is absent, its default value is 1
+ if (typeFieldWidth === 0) {
+ type = 1;
+ }
+ for (j = 0; j < offsetFieldWidth; ++j) {
+ offset = (offset << 8) | stream.getByte();
+ }
+ for (j = 0; j < generationFieldWidth; ++j) {
+ generation = (generation << 8) | stream.getByte();
+ }
+ var entry = {};
+ entry.offset = offset;
+ entry.gen = generation;
+ switch (type) {
+ case 0:
+ entry.free = true;
+ break;
+ case 1:
+ entry.uncompressed = true;
+ break;
+ case 2:
+ break;
+ default:
+ error('Invalid XRef entry type: ' + type);
+ }
+ if (!this.entries[first + i]) {
+ this.entries[first + i] = entry;
+ }
+ }
+
+ streamState.entryNum = 0;
+ streamState.streamPos = stream.pos;
+ entryRanges.splice(0, 2);
+ }
+ },
+
+ indexObjects: function XRef_indexObjects() {
+ // Simple scan through the PDF content to find objects,
+ // trailers and XRef streams.
+ function readToken(data, offset) {
+ var token = '', ch = data[offset];
+ while (ch !== 13 && ch !== 10) {
+ if (++offset >= data.length) {
+ break;
+ }
+ token += String.fromCharCode(ch);
+ ch = data[offset];
+ }
+ return token;
+ }
+ function skipUntil(data, offset, what) {
+ var length = what.length, dataLength = data.length;
+ var skipped = 0;
+ // finding byte sequence
+ while (offset < dataLength) {
+ var i = 0;
+ while (i < length && data[offset + i] === what[i]) {
+ ++i;
+ }
+ if (i >= length) {
+ break; // sequence found
+ }
+ offset++;
+ skipped++;
+ }
+ return skipped;
+ }
+ var trailerBytes = new Uint8Array([116, 114, 97, 105, 108, 101, 114]);
+ var startxrefBytes = new Uint8Array([115, 116, 97, 114, 116, 120, 114,
+ 101, 102]);
+ var endobjBytes = new Uint8Array([101, 110, 100, 111, 98, 106]);
+ var xrefBytes = new Uint8Array([47, 88, 82, 101, 102]);
+
+ var stream = this.stream;
+ stream.pos = 0;
+ var buffer = stream.getBytes();
+ var position = stream.start, length = buffer.length;
+ var trailers = [], xrefStms = [];
+ while (position < length) {
+ var ch = buffer[position];
+ if (ch === 32 || ch === 9 || ch === 13 || ch === 10) {
+ ++position;
+ continue;
+ }
+ if (ch === 37) { // %-comment
+ do {
+ ++position;
+ if (position >= length) {
+ break;
+ }
+ ch = buffer[position];
+ } while (ch !== 13 && ch !== 10);
+ continue;
+ }
+ var token = readToken(buffer, position);
+ var m;
+ if (token === 'xref') {
+ position += skipUntil(buffer, position, trailerBytes);
+ trailers.push(position);
+ position += skipUntil(buffer, position, startxrefBytes);
+ } else if ((m = /^(\d+)\s+(\d+)\s+obj\b/.exec(token))) {
+ this.entries[m[1]] = {
+ offset: position,
+ gen: m[2] | 0,
+ uncompressed: true
+ };
+
+ var contentLength = skipUntil(buffer, position, endobjBytes) + 7;
+ var content = buffer.subarray(position, position + contentLength);
+
+ // checking XRef stream suspect
+ // (it shall have '/XRef' and next char is not a letter)
+ var xrefTagOffset = skipUntil(content, 0, xrefBytes);
+ if (xrefTagOffset < contentLength &&
+ content[xrefTagOffset + 5] < 64) {
+ xrefStms.push(position);
+ this.xrefstms[position] = 1; // don't read it recursively
+ }
+
+ position += contentLength;
+ } else {
+ position += token.length + 1;
+ }
+ }
+ // reading XRef streams
+ var i, ii;
+ for (i = 0, ii = xrefStms.length; i < ii; ++i) {
+ this.startXRefQueue.push(xrefStms[i]);
+ this.readXRef(/* recoveryMode */ true);
+ }
+ // finding main trailer
+ var dict;
+ for (i = 0, ii = trailers.length; i < ii; ++i) {
+ stream.pos = trailers[i];
+ var parser = new Parser(new Lexer(stream), true, this);
+ var obj = parser.getObj();
+ if (!isCmd(obj, 'trailer')) {
+ continue;
+ }
+ // read the trailer dictionary
+ if (!isDict(dict = parser.getObj())) {
+ continue;
+ }
+ // taking the first one with 'ID'
+ if (dict.has('ID')) {
+ return dict;
+ }
+ }
+ // no tailer with 'ID', taking last one (if exists)
+ if (dict) {
+ return dict;
+ }
+ // nothing helps
+ // calling error() would reject worker with an UnknownErrorException.
+ throw new InvalidPDFException('Invalid PDF structure');
+ },
+
+ readXRef: function XRef_readXRef(recoveryMode) {
+ var stream = this.stream;
+
+ try {
+ while (this.startXRefQueue.length) {
+ var startXRef = this.startXRefQueue[0];
+
+ stream.pos = startXRef + stream.start;
+
+ var parser = new Parser(new Lexer(stream), true, this);
+ var obj = parser.getObj();
+ var dict;
+
+ // Get dictionary
+ if (isCmd(obj, 'xref')) {
+ // Parse end-of-file XRef
+ dict = this.processXRefTable(parser);
+ if (!this.topDict) {
+ this.topDict = dict;
+ }
+
+ // Recursively get other XRefs 'XRefStm', if any
+ obj = dict.get('XRefStm');
+ if (isInt(obj)) {
+ var pos = obj;
+ // ignore previously loaded xref streams
+ // (possible infinite recursion)
+ if (!(pos in this.xrefstms)) {
+ this.xrefstms[pos] = 1;
+ this.startXRefQueue.push(pos);
+ }
+ }
+ } else if (isInt(obj)) {
+ // Parse in-stream XRef
+ if (!isInt(parser.getObj()) ||
+ !isCmd(parser.getObj(), 'obj') ||
+ !isStream(obj = parser.getObj())) {
+ error('Invalid XRef stream');
+ }
+ dict = this.processXRefStream(obj);
+ if (!this.topDict) {
+ this.topDict = dict;
+ }
+ if (!dict) {
+ error('Failed to read XRef stream');
+ }
+ } else {
+ error('Invalid XRef stream header');
+ }
+
+ // Recursively get previous dictionary, if any
+ obj = dict.get('Prev');
+ if (isInt(obj)) {
+ this.startXRefQueue.push(obj);
+ } else if (isRef(obj)) {
+ // The spec says Prev must not be a reference, i.e. "/Prev NNN"
+ // This is a fallback for non-compliant PDFs, i.e. "/Prev NNN 0 R"
+ this.startXRefQueue.push(obj.num);
+ }
+
+ this.startXRefQueue.shift();
+ }
+
+ return this.topDict;
+ } catch (e) {
+ if (e instanceof MissingDataException) {
+ throw e;
+ }
+ info('(while reading XRef): ' + e);
+ }
+
+ if (recoveryMode) {
+ return;
+ }
+ throw new XRefParseException();
+ },
+
+ getEntry: function XRef_getEntry(i) {
+ var xrefEntry = this.entries[i];
+ if (xrefEntry && !xrefEntry.free && xrefEntry.offset) {
+ return xrefEntry;
+ }
+ return null;
+ },
+
+ fetchIfRef: function XRef_fetchIfRef(obj) {
+ if (!isRef(obj)) {
+ return obj;
+ }
+ return this.fetch(obj);
+ },
+
+ fetch: function XRef_fetch(ref, suppressEncryption) {
+ assert(isRef(ref), 'ref object is not a reference');
+ var num = ref.num;
+ if (num in this.cache) {
+ var cacheEntry = this.cache[num];
+ return cacheEntry;
+ }
+
+ var xrefEntry = this.getEntry(num);
+
+ // the referenced entry can be free
+ if (xrefEntry === null) {
+ return (this.cache[num] = null);
+ }
+
+ if (xrefEntry.uncompressed) {
+ xrefEntry = this.fetchUncompressed(ref, xrefEntry, suppressEncryption);
+ } else {
+ xrefEntry = this.fetchCompressed(xrefEntry, suppressEncryption);
+ }
+ if (isDict(xrefEntry)){
+ xrefEntry.objId = ref.toString();
+ } else if (isStream(xrefEntry)) {
+ xrefEntry.dict.objId = ref.toString();
+ }
+ return xrefEntry;
+ },
+
+ fetchUncompressed: function XRef_fetchUncompressed(ref, xrefEntry,
+ suppressEncryption) {
+ var gen = ref.gen;
+ var num = ref.num;
+ if (xrefEntry.gen !== gen) {
+ error('inconsistent generation in XRef');
+ }
+ var stream = this.stream.makeSubStream(xrefEntry.offset +
+ this.stream.start);
+ var parser = new Parser(new Lexer(stream), true, this);
+ var obj1 = parser.getObj();
+ var obj2 = parser.getObj();
+ var obj3 = parser.getObj();
+ if (!isInt(obj1) || parseInt(obj1, 10) !== num ||
+ !isInt(obj2) || parseInt(obj2, 10) !== gen ||
+ !isCmd(obj3)) {
+ error('bad XRef entry');
+ }
+ if (!isCmd(obj3, 'obj')) {
+ // some bad PDFs use "obj1234" and really mean 1234
+ if (obj3.cmd.indexOf('obj') === 0) {
+ num = parseInt(obj3.cmd.substring(3), 10);
+ if (!isNaN(num)) {
+ return num;
+ }
+ }
+ error('bad XRef entry');
+ }
+ if (this.encrypt && !suppressEncryption) {
+ xrefEntry = parser.getObj(this.encrypt.createCipherTransform(num, gen));
+ } else {
+ xrefEntry = parser.getObj();
+ }
+ if (!isStream(xrefEntry)) {
+ this.cache[num] = xrefEntry;
+ }
+ return xrefEntry;
+ },
+
+ fetchCompressed: function XRef_fetchCompressed(xrefEntry,
+ suppressEncryption) {
+ var tableOffset = xrefEntry.offset;
+ var stream = this.fetch(new Ref(tableOffset, 0));
+ if (!isStream(stream)) {
+ error('bad ObjStm stream');
+ }
+ var first = stream.dict.get('First');
+ var n = stream.dict.get('N');
+ if (!isInt(first) || !isInt(n)) {
+ error('invalid first and n parameters for ObjStm stream');
+ }
+ var parser = new Parser(new Lexer(stream), false, this);
+ parser.allowStreams = true;
+ var i, entries = [], num, nums = [];
+ // read the object numbers to populate cache
+ for (i = 0; i < n; ++i) {
+ num = parser.getObj();
+ if (!isInt(num)) {
+ error('invalid object number in the ObjStm stream: ' + num);
+ }
+ nums.push(num);
+ var offset = parser.getObj();
+ if (!isInt(offset)) {
+ error('invalid object offset in the ObjStm stream: ' + offset);
+ }
+ }
+ // read stream objects for cache
+ for (i = 0; i < n; ++i) {
+ entries.push(parser.getObj());
+ num = nums[i];
+ var entry = this.entries[num];
+ if (entry && entry.offset === tableOffset && entry.gen === i) {
+ this.cache[num] = entries[i];
+ }
+ }
+ xrefEntry = entries[xrefEntry.gen];
+ if (xrefEntry === undefined) {
+ error('bad XRef entry for compressed object');
+ }
+ return xrefEntry;
+ },
+
+ fetchIfRefAsync: function XRef_fetchIfRefAsync(obj) {
+ if (!isRef(obj)) {
+ return Promise.resolve(obj);
+ }
+ return this.fetchAsync(obj);
+ },
+
+ fetchAsync: function XRef_fetchAsync(ref, suppressEncryption) {
+ var streamManager = this.stream.manager;
+ var xref = this;
+ return new Promise(function tryFetch(resolve, reject) {
+ try {
+ resolve(xref.fetch(ref, suppressEncryption));
+ } catch (e) {
+ if (e instanceof MissingDataException) {
+ streamManager.requestRange(e.begin, e.end, function () {
+ tryFetch(resolve, reject);
+ });
+ return;
+ }
+ reject(e);
+ }
+ });
+ },
+
+ getCatalogObj: function XRef_getCatalogObj() {
+ return this.root;
+ }
+ };
+
+ return XRef;
+})();
+
+/**
+ * A NameTree is like a Dict but has some advantageous properties, see the
+ * spec (7.9.6) for more details.
+ * TODO: implement all the Dict functions and make this more efficent.
+ */
+var NameTree = (function NameTreeClosure() {
+ function NameTree(root, xref) {
+ this.root = root;
+ this.xref = xref;
+ }
+
+ NameTree.prototype = {
+ getAll: function NameTree_getAll() {
+ var dict = {};
+ if (!this.root) {
+ return dict;
+ }
+ var xref = this.xref;
+ // reading name tree
+ var processed = new RefSet();
+ processed.put(this.root);
+ var queue = [this.root];
+ while (queue.length > 0) {
+ var i, n;
+ var obj = xref.fetchIfRef(queue.shift());
+ if (!isDict(obj)) {
+ continue;
+ }
+ if (obj.has('Kids')) {
+ var kids = obj.get('Kids');
+ for (i = 0, n = kids.length; i < n; i++) {
+ var kid = kids[i];
+ if (processed.has(kid)) {
+ error('invalid destinations');
+ }
+ queue.push(kid);
+ processed.put(kid);
+ }
+ continue;
+ }
+ var names = obj.get('Names');
+ if (names) {
+ for (i = 0, n = names.length; i < n; i += 2) {
+ dict[names[i]] = xref.fetchIfRef(names[i + 1]);
+ }
+ }
+ }
+ return dict;
+ },
+
+ get: function NameTree_get(destinationId) {
+ if (!this.root) {
+ return null;
+ }
+
+ var xref = this.xref;
+ var kidsOrNames = xref.fetchIfRef(this.root);
+ var loopCount = 0;
+ var MAX_NAMES_LEVELS = 10;
+ var l, r, m;
+
+ // Perform a binary search to quickly find the entry that
+ // contains the named destination we are looking for.
+ while (kidsOrNames.has('Kids')) {
+ loopCount++;
+ if (loopCount > MAX_NAMES_LEVELS) {
+ warn('Search depth limit for named destionations has been reached.');
+ return null;
+ }
+
+ var kids = kidsOrNames.get('Kids');
+ if (!isArray(kids)) {
+ return null;
+ }
+
+ l = 0;
+ r = kids.length - 1;
+ while (l <= r) {
+ m = (l + r) >> 1;
+ var kid = xref.fetchIfRef(kids[m]);
+ var limits = kid.get('Limits');
+
+ if (destinationId < limits[0]) {
+ r = m - 1;
+ } else if (destinationId > limits[1]) {
+ l = m + 1;
+ } else {
+ kidsOrNames = xref.fetchIfRef(kids[m]);
+ break;
+ }
+ }
+ if (l > r) {
+ return null;
+ }
+ }
+
+ // If we get here, then we have found the right entry. Now
+ // go through the named destinations in the Named dictionary
+ // until we find the exact destination we're looking for.
+ var names = kidsOrNames.get('Names');
+ if (isArray(names)) {
+ // Perform a binary search to reduce the lookup time.
+ l = 0;
+ r = names.length - 2;
+ while (l <= r) {
+ // Check only even indices (0, 2, 4, ...) because the
+ // odd indices contain the actual D array.
+ m = (l + r) & ~1;
+ if (destinationId < names[m]) {
+ r = m - 2;
+ } else if (destinationId > names[m]) {
+ l = m + 2;
+ } else {
+ return xref.fetchIfRef(names[m + 1]);
+ }
+ }
+ }
+ return null;
+ }
+ };
+ return NameTree;
+})();
+
+/**
+ * "A PDF file can refer to the contents of another file by using a File
+ * Specification (PDF 1.1)", see the spec (7.11) for more details.
+ * NOTE: Only embedded files are supported (as part of the attachments support)
+ * TODO: support the 'URL' file system (with caching if !/V), portable
+ * collections attributes and related files (/RF)
+ */
+var FileSpec = (function FileSpecClosure() {
+ function FileSpec(root, xref) {
+ if (!root || !isDict(root)) {
+ return;
+ }
+ this.xref = xref;
+ this.root = root;
+ if (root.has('FS')) {
+ this.fs = root.get('FS');
+ }
+ this.description = root.has('Desc') ?
+ stringToPDFString(root.get('Desc')) :
+ '';
+ if (root.has('RF')) {
+ warn('Related file specifications are not supported');
+ }
+ this.contentAvailable = true;
+ if (!root.has('EF')) {
+ this.contentAvailable = false;
+ warn('Non-embedded file specifications are not supported');
+ }
+ }
+
+ function pickPlatformItem(dict) {
+ // Look for the filename in this order:
+ // UF, F, Unix, Mac, DOS
+ if (dict.has('UF')) {
+ return dict.get('UF');
+ } else if (dict.has('F')) {
+ return dict.get('F');
+ } else if (dict.has('Unix')) {
+ return dict.get('Unix');
+ } else if (dict.has('Mac')) {
+ return dict.get('Mac');
+ } else if (dict.has('DOS')) {
+ return dict.get('DOS');
+ } else {
+ return null;
+ }
+ }
+
+ FileSpec.prototype = {
+ get filename() {
+ if (!this._filename && this.root) {
+ var filename = pickPlatformItem(this.root) || 'unnamed';
+ this._filename = stringToPDFString(filename).
+ replace(/\\\\/g, '\\').
+ replace(/\\\//g, '/').
+ replace(/\\/g, '/');
+ }
+ return this._filename;
+ },
+ get content() {
+ if (!this.contentAvailable) {
+ return null;
+ }
+ if (!this.contentRef && this.root) {
+ this.contentRef = pickPlatformItem(this.root.get('EF'));
+ }
+ var content = null;
+ if (this.contentRef) {
+ var xref = this.xref;
+ var fileObj = xref.fetchIfRef(this.contentRef);
+ if (fileObj && isStream(fileObj)) {
+ content = fileObj.getBytes();
+ } else {
+ warn('Embedded file specification points to non-existing/invalid ' +
+ 'content');
+ }
+ } else {
+ warn('Embedded file specification does not have a content');
+ }
+ return content;
+ },
+ get serializable() {
+ return {
+ filename: this.filename,
+ content: this.content
+ };
+ }
+ };
+ return FileSpec;
+})();
+
+/**
+ * A helper for loading missing data in object graphs. It traverses the graph
+ * depth first and queues up any objects that have missing data. Once it has
+ * has traversed as many objects that are available it attempts to bundle the
+ * missing data requests and then resume from the nodes that weren't ready.
+ *
+ * NOTE: It provides protection from circular references by keeping track of
+ * of loaded references. However, you must be careful not to load any graphs
+ * that have references to the catalog or other pages since that will cause the
+ * entire PDF document object graph to be traversed.
+ */
+var ObjectLoader = (function() {
+ function mayHaveChildren(value) {
+ return isRef(value) || isDict(value) || isArray(value) || isStream(value);
+ }
+
+ function addChildren(node, nodesToVisit) {
+ var value;
+ if (isDict(node) || isStream(node)) {
+ var map;
+ if (isDict(node)) {
+ map = node.map;
+ } else {
+ map = node.dict.map;
+ }
+ for (var key in map) {
+ value = map[key];
+ if (mayHaveChildren(value)) {
+ nodesToVisit.push(value);
+ }
+ }
+ } else if (isArray(node)) {
+ for (var i = 0, ii = node.length; i < ii; i++) {
+ value = node[i];
+ if (mayHaveChildren(value)) {
+ nodesToVisit.push(value);
+ }
+ }
+ }
+ }
+
+ function ObjectLoader(obj, keys, xref) {
+ this.obj = obj;
+ this.keys = keys;
+ this.xref = xref;
+ this.refSet = null;
+ }
+
+ ObjectLoader.prototype = {
+ load: function ObjectLoader_load() {
+ var keys = this.keys;
+ this.capability = createPromiseCapability();
+ // Don't walk the graph if all the data is already loaded.
+ if (!(this.xref.stream instanceof ChunkedStream) ||
+ this.xref.stream.getMissingChunks().length === 0) {
+ this.capability.resolve();
+ return this.capability.promise;
+ }
+
+ this.refSet = new RefSet();
+ // Setup the initial nodes to visit.
+ var nodesToVisit = [];
+ for (var i = 0; i < keys.length; i++) {
+ nodesToVisit.push(this.obj[keys[i]]);
+ }
+
+ this.walk(nodesToVisit);
+ return this.capability.promise;
+ },
+
+ walk: function ObjectLoader_walk(nodesToVisit) {
+ var nodesToRevisit = [];
+ var pendingRequests = [];
+ // DFS walk of the object graph.
+ while (nodesToVisit.length) {
+ var currentNode = nodesToVisit.pop();
+
+ // Only references or chunked streams can cause missing data exceptions.
+ if (isRef(currentNode)) {
+ // Skip nodes that have already been visited.
+ if (this.refSet.has(currentNode)) {
+ continue;
+ }
+ try {
+ var ref = currentNode;
+ this.refSet.put(ref);
+ currentNode = this.xref.fetch(currentNode);
+ } catch (e) {
+ if (!(e instanceof MissingDataException)) {
+ throw e;
+ }
+ nodesToRevisit.push(currentNode);
+ pendingRequests.push({ begin: e.begin, end: e.end });
+ }
+ }
+ if (currentNode && currentNode.getBaseStreams) {
+ var baseStreams = currentNode.getBaseStreams();
+ var foundMissingData = false;
+ for (var i = 0; i < baseStreams.length; i++) {
+ var stream = baseStreams[i];
+ if (stream.getMissingChunks && stream.getMissingChunks().length) {
+ foundMissingData = true;
+ pendingRequests.push({
+ begin: stream.start,
+ end: stream.end
+ });
+ }
+ }
+ if (foundMissingData) {
+ nodesToRevisit.push(currentNode);
+ }
+ }
+
+ addChildren(currentNode, nodesToVisit);
+ }
+
+ if (pendingRequests.length) {
+ this.xref.stream.manager.requestRanges(pendingRequests,
+ function pendingRequestCallback() {
+ nodesToVisit = nodesToRevisit;
+ for (var i = 0; i < nodesToRevisit.length; i++) {
+ var node = nodesToRevisit[i];
+ // Remove any reference nodes from the currrent refset so they
+ // aren't skipped when we revist them.
+ if (isRef(node)) {
+ this.refSet.remove(node);
+ }
+ }
+ this.walk(nodesToVisit);
+ }.bind(this));
+ return;
+ }
+ // Everything is loaded.
+ this.refSet = null;
+ this.capability.resolve();
+ }
+ };
+
+ return ObjectLoader;
+})();
+
+
+var ISOAdobeCharset = [
+ '.notdef', 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar',
+ 'percent', 'ampersand', 'quoteright', 'parenleft', 'parenright',
+ 'asterisk', 'plus', 'comma', 'hyphen', 'period', 'slash', 'zero',
+ 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight',
+ 'nine', 'colon', 'semicolon', 'less', 'equal', 'greater', 'question',
+ 'at', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
+ 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
+ 'bracketleft', 'backslash', 'bracketright', 'asciicircum', 'underscore',
+ 'quoteleft', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
+ 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+ 'braceleft', 'bar', 'braceright', 'asciitilde', 'exclamdown', 'cent',
+ 'sterling', 'fraction', 'yen', 'florin', 'section', 'currency',
+ 'quotesingle', 'quotedblleft', 'guillemotleft', 'guilsinglleft',
+ 'guilsinglright', 'fi', 'fl', 'endash', 'dagger', 'daggerdbl',
+ 'periodcentered', 'paragraph', 'bullet', 'quotesinglbase',
+ 'quotedblbase', 'quotedblright', 'guillemotright', 'ellipsis',
+ 'perthousand', 'questiondown', 'grave', 'acute', 'circumflex', 'tilde',
+ 'macron', 'breve', 'dotaccent', 'dieresis', 'ring', 'cedilla',
+ 'hungarumlaut', 'ogonek', 'caron', 'emdash', 'AE', 'ordfeminine',
+ 'Lslash', 'Oslash', 'OE', 'ordmasculine', 'ae', 'dotlessi', 'lslash',
+ 'oslash', 'oe', 'germandbls', 'onesuperior', 'logicalnot', 'mu',
+ 'trademark', 'Eth', 'onehalf', 'plusminus', 'Thorn', 'onequarter',
+ 'divide', 'brokenbar', 'degree', 'thorn', 'threequarters', 'twosuperior',
+ 'registered', 'minus', 'eth', 'multiply', 'threesuperior', 'copyright',
+ 'Aacute', 'Acircumflex', 'Adieresis', 'Agrave', 'Aring', 'Atilde',
+ 'Ccedilla', 'Eacute', 'Ecircumflex', 'Edieresis', 'Egrave', 'Iacute',
+ 'Icircumflex', 'Idieresis', 'Igrave', 'Ntilde', 'Oacute', 'Ocircumflex',
+ 'Odieresis', 'Ograve', 'Otilde', 'Scaron', 'Uacute', 'Ucircumflex',
+ 'Udieresis', 'Ugrave', 'Yacute', 'Ydieresis', 'Zcaron', 'aacute',
+ 'acircumflex', 'adieresis', 'agrave', 'aring', 'atilde', 'ccedilla',
+ 'eacute', 'ecircumflex', 'edieresis', 'egrave', 'iacute', 'icircumflex',
+ 'idieresis', 'igrave', 'ntilde', 'oacute', 'ocircumflex', 'odieresis',
+ 'ograve', 'otilde', 'scaron', 'uacute', 'ucircumflex', 'udieresis',
+ 'ugrave', 'yacute', 'ydieresis', 'zcaron'
+];
+
+var ExpertCharset = [
+ '.notdef', 'space', 'exclamsmall', 'Hungarumlautsmall', 'dollaroldstyle',
+ 'dollarsuperior', 'ampersandsmall', 'Acutesmall', 'parenleftsuperior',
+ 'parenrightsuperior', 'twodotenleader', 'onedotenleader', 'comma',
+ 'hyphen', 'period', 'fraction', 'zerooldstyle', 'oneoldstyle',
+ 'twooldstyle', 'threeoldstyle', 'fouroldstyle', 'fiveoldstyle',
+ 'sixoldstyle', 'sevenoldstyle', 'eightoldstyle', 'nineoldstyle',
+ 'colon', 'semicolon', 'commasuperior', 'threequartersemdash',
+ 'periodsuperior', 'questionsmall', 'asuperior', 'bsuperior',
+ 'centsuperior', 'dsuperior', 'esuperior', 'isuperior', 'lsuperior',
+ 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior',
+ 'tsuperior', 'ff', 'fi', 'fl', 'ffi', 'ffl', 'parenleftinferior',
+ 'parenrightinferior', 'Circumflexsmall', 'hyphensuperior', 'Gravesmall',
+ 'Asmall', 'Bsmall', 'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall',
+ 'Hsmall', 'Ismall', 'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall',
+ 'Osmall', 'Psmall', 'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall',
+ 'Vsmall', 'Wsmall', 'Xsmall', 'Ysmall', 'Zsmall', 'colonmonetary',
+ 'onefitted', 'rupiah', 'Tildesmall', 'exclamdownsmall', 'centoldstyle',
+ 'Lslashsmall', 'Scaronsmall', 'Zcaronsmall', 'Dieresissmall',
+ 'Brevesmall', 'Caronsmall', 'Dotaccentsmall', 'Macronsmall',
+ 'figuredash', 'hypheninferior', 'Ogoneksmall', 'Ringsmall',
+ 'Cedillasmall', 'onequarter', 'onehalf', 'threequarters',
+ 'questiondownsmall', 'oneeighth', 'threeeighths', 'fiveeighths',
+ 'seveneighths', 'onethird', 'twothirds', 'zerosuperior', 'onesuperior',
+ 'twosuperior', 'threesuperior', 'foursuperior', 'fivesuperior',
+ 'sixsuperior', 'sevensuperior', 'eightsuperior', 'ninesuperior',
+ 'zeroinferior', 'oneinferior', 'twoinferior', 'threeinferior',
+ 'fourinferior', 'fiveinferior', 'sixinferior', 'seveninferior',
+ 'eightinferior', 'nineinferior', 'centinferior', 'dollarinferior',
+ 'periodinferior', 'commainferior', 'Agravesmall', 'Aacutesmall',
+ 'Acircumflexsmall', 'Atildesmall', 'Adieresissmall', 'Aringsmall',
+ 'AEsmall', 'Ccedillasmall', 'Egravesmall', 'Eacutesmall',
+ 'Ecircumflexsmall', 'Edieresissmall', 'Igravesmall', 'Iacutesmall',
+ 'Icircumflexsmall', 'Idieresissmall', 'Ethsmall', 'Ntildesmall',
+ 'Ogravesmall', 'Oacutesmall', 'Ocircumflexsmall', 'Otildesmall',
+ 'Odieresissmall', 'OEsmall', 'Oslashsmall', 'Ugravesmall', 'Uacutesmall',
+ 'Ucircumflexsmall', 'Udieresissmall', 'Yacutesmall', 'Thornsmall',
+ 'Ydieresissmall'
+];
+
+var ExpertSubsetCharset = [
+ '.notdef', 'space', 'dollaroldstyle', 'dollarsuperior',
+ 'parenleftsuperior', 'parenrightsuperior', 'twodotenleader',
+ 'onedotenleader', 'comma', 'hyphen', 'period', 'fraction',
+ 'zerooldstyle', 'oneoldstyle', 'twooldstyle', 'threeoldstyle',
+ 'fouroldstyle', 'fiveoldstyle', 'sixoldstyle', 'sevenoldstyle',
+ 'eightoldstyle', 'nineoldstyle', 'colon', 'semicolon', 'commasuperior',
+ 'threequartersemdash', 'periodsuperior', 'asuperior', 'bsuperior',
+ 'centsuperior', 'dsuperior', 'esuperior', 'isuperior', 'lsuperior',
+ 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior',
+ 'tsuperior', 'ff', 'fi', 'fl', 'ffi', 'ffl', 'parenleftinferior',
+ 'parenrightinferior', 'hyphensuperior', 'colonmonetary', 'onefitted',
+ 'rupiah', 'centoldstyle', 'figuredash', 'hypheninferior', 'onequarter',
+ 'onehalf', 'threequarters', 'oneeighth', 'threeeighths', 'fiveeighths',
+ 'seveneighths', 'onethird', 'twothirds', 'zerosuperior', 'onesuperior',
+ 'twosuperior', 'threesuperior', 'foursuperior', 'fivesuperior',
+ 'sixsuperior', 'sevensuperior', 'eightsuperior', 'ninesuperior',
+ 'zeroinferior', 'oneinferior', 'twoinferior', 'threeinferior',
+ 'fourinferior', 'fiveinferior', 'sixinferior', 'seveninferior',
+ 'eightinferior', 'nineinferior', 'centinferior', 'dollarinferior',
+ 'periodinferior', 'commainferior'
+];
+
+
+var DEFAULT_ICON_SIZE = 22; // px
+var SUPPORTED_TYPES = ['Link', 'Text', 'Widget'];
+
+var Annotation = (function AnnotationClosure() {
+ // 12.5.5: Algorithm: Appearance streams
+ function getTransformMatrix(rect, bbox, matrix) {
+ var bounds = Util.getAxialAlignedBoundingBox(bbox, matrix);
+ var minX = bounds[0];
+ var minY = bounds[1];
+ var maxX = bounds[2];
+ var maxY = bounds[3];
+
+ if (minX === maxX || minY === maxY) {
+ // From real-life file, bbox was [0, 0, 0, 0]. In this case,
+ // just apply the transform for rect
+ return [1, 0, 0, 1, rect[0], rect[1]];
+ }
+
+ var xRatio = (rect[2] - rect[0]) / (maxX - minX);
+ var yRatio = (rect[3] - rect[1]) / (maxY - minY);
+ return [
+ xRatio,
+ 0,
+ 0,
+ yRatio,
+ rect[0] - minX * xRatio,
+ rect[1] - minY * yRatio
+ ];
+ }
+
+ function getDefaultAppearance(dict) {
+ var appearanceState = dict.get('AP');
+ if (!isDict(appearanceState)) {
+ return;
+ }
+
+ var appearance;
+ var appearances = appearanceState.get('N');
+ if (isDict(appearances)) {
+ var as = dict.get('AS');
+ if (as && appearances.has(as.name)) {
+ appearance = appearances.get(as.name);
+ }
+ } else {
+ appearance = appearances;
+ }
+ return appearance;
+ }
+
+ function Annotation(params) {
+ var dict = params.dict;
+ var data = this.data = {};
+
+ data.subtype = dict.get('Subtype').name;
+ var rect = dict.get('Rect') || [0, 0, 0, 0];
+ data.rect = Util.normalizeRect(rect);
+ data.annotationFlags = dict.get('F');
+
+ var color = dict.get('C');
+ if (!color) {
+ // The PDF spec does not mention how a missing color array is interpreted.
+ // Adobe Reader seems to default to black in this case.
+ data.color = [0, 0, 0];
+ } else if (isArray(color)) {
+ switch (color.length) {
+ case 0:
+ // Empty array denotes transparent border.
+ data.color = null;
+ break;
+ case 1:
+ // TODO: implement DeviceGray
+ break;
+ case 3:
+ data.color = color;
+ break;
+ case 4:
+ // TODO: implement DeviceCMYK
+ break;
+ }
+ }
+
+ // Some types of annotations have border style dict which has more
+ // info than the border array
+ if (dict.has('BS')) {
+ var borderStyle = dict.get('BS');
+ data.borderWidth = borderStyle.has('W') ? borderStyle.get('W') : 1;
+ } else {
+ var borderArray = dict.get('Border') || [0, 0, 1];
+ data.borderWidth = borderArray[2] || 0;
+
+ // TODO: implement proper support for annotations with line dash patterns.
+ var dashArray = borderArray[3];
+ if (data.borderWidth > 0 && dashArray) {
+ if (!isArray(dashArray)) {
+ // Ignore the border if dashArray is not actually an array,
+ // this is consistent with the behaviour in Adobe Reader.
+ data.borderWidth = 0;
+ } else {
+ var dashArrayLength = dashArray.length;
+ if (dashArrayLength > 0) {
+ // According to the PDF specification: the elements in a dashArray
+ // shall be numbers that are nonnegative and not all equal to zero.
+ var isInvalid = false;
+ var numPositive = 0;
+ for (var i = 0; i < dashArrayLength; i++) {
+ var validNumber = (+dashArray[i] >= 0);
+ if (!validNumber) {
+ isInvalid = true;
+ break;
+ } else if (dashArray[i] > 0) {
+ numPositive++;
+ }
+ }
+ if (isInvalid || numPositive === 0) {
+ data.borderWidth = 0;
+ }
+ }
+ }
+ }
+ }
+
+ this.appearance = getDefaultAppearance(dict);
+ data.hasAppearance = !!this.appearance;
+ data.id = params.ref.num;
+ }
+
+ Annotation.prototype = {
+
+ getData: function Annotation_getData() {
+ return this.data;
+ },
+
+ isInvisible: function Annotation_isInvisible() {
+ var data = this.data;
+ if (data && SUPPORTED_TYPES.indexOf(data.subtype) !== -1) {
+ return false;
+ } else {
+ return !!(data &&
+ data.annotationFlags && // Default: not invisible
+ data.annotationFlags & 0x1); // Invisible
+ }
+ },
+
+ isViewable: function Annotation_isViewable() {
+ var data = this.data;
+ return !!(!this.isInvisible() &&
+ data &&
+ (!data.annotationFlags ||
+ !(data.annotationFlags & 0x22)) && // Hidden or NoView
+ data.rect); // rectangle is necessary
+ },
+
+ isPrintable: function Annotation_isPrintable() {
+ var data = this.data;
+ return !!(!this.isInvisible() &&
+ data &&
+ data.annotationFlags && // Default: not printable
+ data.annotationFlags & 0x4 && // Print
+ !(data.annotationFlags & 0x2) && // Hidden
+ data.rect); // rectangle is necessary
+ },
+
+ loadResources: function Annotation_loadResources(keys) {
+ return new Promise(function (resolve, reject) {
+ this.appearance.dict.getAsync('Resources').then(function (resources) {
+ if (!resources) {
+ resolve();
+ return;
+ }
+ var objectLoader = new ObjectLoader(resources.map,
+ keys,
+ resources.xref);
+ objectLoader.load().then(function() {
+ resolve(resources);
+ }, reject);
+ }, reject);
+ }.bind(this));
+ },
+
+ getOperatorList: function Annotation_getOperatorList(evaluator) {
+
+ if (!this.appearance) {
+ return Promise.resolve(new OperatorList());
+ }
+
+ var data = this.data;
+
+ var appearanceDict = this.appearance.dict;
+ var resourcesPromise = this.loadResources([
+ 'ExtGState',
+ 'ColorSpace',
+ 'Pattern',
+ 'Shading',
+ 'XObject',
+ 'Font'
+ // ProcSet
+ // Properties
+ ]);
+ var bbox = appearanceDict.get('BBox') || [0, 0, 1, 1];
+ var matrix = appearanceDict.get('Matrix') || [1, 0, 0, 1, 0 ,0];
+ var transform = getTransformMatrix(data.rect, bbox, matrix);
+ var self = this;
+
+ return resourcesPromise.then(function(resources) {
+ var opList = new OperatorList();
+ opList.addOp(OPS.beginAnnotation, [data.rect, transform, matrix]);
+ return evaluator.getOperatorList(self.appearance, resources, opList).
+ then(function () {
+ opList.addOp(OPS.endAnnotation, []);
+ self.appearance.reset();
+ return opList;
+ });
+ });
+ }
+ };
+
+ Annotation.getConstructor =
+ function Annotation_getConstructor(subtype, fieldType) {
+
+ if (!subtype) {
+ return;
+ }
+
+ // TODO(mack): Implement FreeText annotations
+ if (subtype === 'Link') {
+ return LinkAnnotation;
+ } else if (subtype === 'Text') {
+ return TextAnnotation;
+ } else if (subtype === 'Widget') {
+ if (!fieldType) {
+ return;
+ }
+
+ if (fieldType === 'Tx') {
+ return TextWidgetAnnotation;
+ } else {
+ return WidgetAnnotation;
+ }
+ } else {
+ return Annotation;
+ }
+ };
+
+ Annotation.fromRef = function Annotation_fromRef(xref, ref) {
+
+ var dict = xref.fetchIfRef(ref);
+ if (!isDict(dict)) {
+ return;
+ }
+
+ var subtype = dict.get('Subtype');
+ subtype = isName(subtype) ? subtype.name : '';
+ if (!subtype) {
+ return;
+ }
+
+ var fieldType = Util.getInheritableProperty(dict, 'FT');
+ fieldType = isName(fieldType) ? fieldType.name : '';
+
+ var Constructor = Annotation.getConstructor(subtype, fieldType);
+ if (!Constructor) {
+ return;
+ }
+
+ var params = {
+ dict: dict,
+ ref: ref,
+ };
+
+ var annotation = new Constructor(params);
+
+ if (annotation.isViewable() || annotation.isPrintable()) {
+ return annotation;
+ } else {
+ if (SUPPORTED_TYPES.indexOf(subtype) === -1) {
+ warn('unimplemented annotation type: ' + subtype);
+ }
+ }
+ };
+
+ Annotation.appendToOperatorList = function Annotation_appendToOperatorList(
+ annotations, opList, pdfManager, partialEvaluator, intent) {
+
+ function reject(e) {
+ annotationsReadyCapability.reject(e);
+ }
+
+ var annotationsReadyCapability = createPromiseCapability();
+
+ var annotationPromises = [];
+ for (var i = 0, n = annotations.length; i < n; ++i) {
+ if (intent === 'display' && annotations[i].isViewable() ||
+ intent === 'print' && annotations[i].isPrintable()) {
+ annotationPromises.push(
+ annotations[i].getOperatorList(partialEvaluator));
+ }
+ }
+ Promise.all(annotationPromises).then(function(datas) {
+ opList.addOp(OPS.beginAnnotations, []);
+ for (var i = 0, n = datas.length; i < n; ++i) {
+ var annotOpList = datas[i];
+ opList.addOpList(annotOpList);
+ }
+ opList.addOp(OPS.endAnnotations, []);
+ annotationsReadyCapability.resolve();
+ }, reject);
+
+ return annotationsReadyCapability.promise;
+ };
+
+ return Annotation;
+})();
+
+var WidgetAnnotation = (function WidgetAnnotationClosure() {
+
+ function WidgetAnnotation(params) {
+ Annotation.call(this, params);
+
+ var dict = params.dict;
+ var data = this.data;
+
+ data.fieldValue = stringToPDFString(
+ Util.getInheritableProperty(dict, 'V') || '');
+ data.alternativeText = stringToPDFString(dict.get('TU') || '');
+ data.defaultAppearance = Util.getInheritableProperty(dict, 'DA') || '';
+ var fieldType = Util.getInheritableProperty(dict, 'FT');
+ data.fieldType = isName(fieldType) ? fieldType.name : '';
+ data.fieldFlags = Util.getInheritableProperty(dict, 'Ff') || 0;
+ this.fieldResources = Util.getInheritableProperty(dict, 'DR') || Dict.empty;
+
+ // Building the full field name by collecting the field and
+ // its ancestors 'T' data and joining them using '.'.
+ var fieldName = [];
+ var namedItem = dict;
+ var ref = params.ref;
+ while (namedItem) {
+ var parent = namedItem.get('Parent');
+ var parentRef = namedItem.getRaw('Parent');
+ var name = namedItem.get('T');
+ if (name) {
+ fieldName.unshift(stringToPDFString(name));
+ } else if (parent && ref) {
+ // The field name is absent, that means more than one field
+ // with the same name may exist. Replacing the empty name
+ // with the '`' plus index in the parent's 'Kids' array.
+ // This is not in the PDF spec but necessary to id the
+ // the input controls.
+ var kids = parent.get('Kids');
+ var j, jj;
+ for (j = 0, jj = kids.length; j < jj; j++) {
+ var kidRef = kids[j];
+ if (kidRef.num === ref.num && kidRef.gen === ref.gen) {
+ break;
+ }
+ }
+ fieldName.unshift('`' + j);
+ }
+ namedItem = parent;
+ ref = parentRef;
+ }
+ data.fullName = fieldName.join('.');
+ }
+
+ var parent = Annotation.prototype;
+ Util.inherit(WidgetAnnotation, Annotation, {
+ isViewable: function WidgetAnnotation_isViewable() {
+ if (this.data.fieldType === 'Sig') {
+ warn('unimplemented annotation type: Widget signature');
+ return false;
+ }
+
+ return parent.isViewable.call(this);
+ }
+ });
+
+ return WidgetAnnotation;
+})();
+
+var TextWidgetAnnotation = (function TextWidgetAnnotationClosure() {
+ function TextWidgetAnnotation(params) {
+ WidgetAnnotation.call(this, params);
+
+ this.data.textAlignment = Util.getInheritableProperty(params.dict, 'Q');
+ this.data.annotationType = AnnotationType.WIDGET;
+ this.data.hasHtml = !this.data.hasAppearance && !!this.data.fieldValue;
+ }
+
+ Util.inherit(TextWidgetAnnotation, WidgetAnnotation, {
+ getOperatorList: function TextWidgetAnnotation_getOperatorList(evaluator) {
+ if (this.appearance) {
+ return Annotation.prototype.getOperatorList.call(this, evaluator);
+ }
+
+ var opList = new OperatorList();
+ var data = this.data;
+
+ // Even if there is an appearance stream, ignore it. This is the
+ // behaviour used by Adobe Reader.
+ if (!data.defaultAppearance) {
+ return Promise.resolve(opList);
+ }
+
+ var stream = new Stream(stringToBytes(data.defaultAppearance));
+ return evaluator.getOperatorList(stream, this.fieldResources, opList).
+ then(function () {
+ return opList;
+ });
+ }
+ });
+
+ return TextWidgetAnnotation;
+})();
+
+var InteractiveAnnotation = (function InteractiveAnnotationClosure() {
+ function InteractiveAnnotation(params) {
+ Annotation.call(this, params);
+
+ this.data.hasHtml = true;
+ }
+
+ Util.inherit(InteractiveAnnotation, Annotation, { });
+
+ return InteractiveAnnotation;
+})();
+
+var TextAnnotation = (function TextAnnotationClosure() {
+ function TextAnnotation(params) {
+ InteractiveAnnotation.call(this, params);
+
+ var dict = params.dict;
+ var data = this.data;
+
+ var content = dict.get('Contents');
+ var title = dict.get('T');
+ data.annotationType = AnnotationType.TEXT;
+ data.content = stringToPDFString(content || '');
+ data.title = stringToPDFString(title || '');
+
+ if (data.hasAppearance) {
+ data.name = 'NoIcon';
+ } else {
+ data.rect[1] = data.rect[3] - DEFAULT_ICON_SIZE;
+ data.rect[2] = data.rect[0] + DEFAULT_ICON_SIZE;
+ data.name = dict.has('Name') ? dict.get('Name').name : 'Note';
+ }
+
+ if (dict.has('C')) {
+ data.hasBgColor = true;
+ }
+ }
+
+ Util.inherit(TextAnnotation, InteractiveAnnotation, { });
+
+ return TextAnnotation;
+})();
+
+var LinkAnnotation = (function LinkAnnotationClosure() {
+ function LinkAnnotation(params) {
+ InteractiveAnnotation.call(this, params);
+
+ var dict = params.dict;
+ var data = this.data;
+ data.annotationType = AnnotationType.LINK;
+
+ var action = dict.get('A');
+ if (action && isDict(action)) {
+ var linkType = action.get('S').name;
+ if (linkType === 'URI') {
+ var url = action.get('URI');
+ if (isName(url)) {
+ // Some bad PDFs do not put parentheses around relative URLs.
+ url = '/' + url.name;
+ } else if (url) {
+ url = addDefaultProtocolToUrl(url);
+ }
+ // TODO: pdf spec mentions urls can be relative to a Base
+ // entry in the dictionary.
+ if (!isValidUrl(url, false)) {
+ url = '';
+ }
+ data.url = url;
+ } else if (linkType === 'GoTo') {
+ data.dest = action.get('D');
+ } else if (linkType === 'GoToR') {
+ var urlDict = action.get('F');
+ if (isDict(urlDict)) {
+ // We assume that the 'url' is a Filspec dictionary
+ // and fetch the url without checking any further
+ url = urlDict.get('F') || '';
+ }
+
+ // TODO: pdf reference says that GoToR
+ // can also have 'NewWindow' attribute
+ if (!isValidUrl(url, false)) {
+ url = '';
+ }
+ data.url = url;
+ data.dest = action.get('D');
+ } else if (linkType === 'Named') {
+ data.action = action.get('N').name;
+ } else {
+ warn('unrecognized link type: ' + linkType);
+ }
+ } else if (dict.has('Dest')) {
+ // simple destination link
+ var dest = dict.get('Dest');
+ data.dest = isName(dest) ? dest.name : dest;
+ }
+ }
+
+ // Lets URLs beginning with 'www.' default to using the 'http://' protocol.
+ function addDefaultProtocolToUrl(url) {
+ if (url && url.indexOf('www.') === 0) {
+ return ('http://' + url);
+ }
+ return url;
+ }
+
+ Util.inherit(LinkAnnotation, InteractiveAnnotation, { });
+
+ return LinkAnnotation;
+})();
+
+
+var PDFFunction = (function PDFFunctionClosure() {
+ var CONSTRUCT_SAMPLED = 0;
+ var CONSTRUCT_INTERPOLATED = 2;
+ var CONSTRUCT_STICHED = 3;
+ var CONSTRUCT_POSTSCRIPT = 4;
+
+ return {
+ getSampleArray: function PDFFunction_getSampleArray(size, outputSize, bps,
+ str) {
+ var i, ii;
+ var length = 1;
+ for (i = 0, ii = size.length; i < ii; i++) {
+ length *= size[i];
+ }
+ length *= outputSize;
+
+ var array = new Array(length);
+ var codeSize = 0;
+ var codeBuf = 0;
+ // 32 is a valid bps so shifting won't work
+ var sampleMul = 1.0 / (Math.pow(2.0, bps) - 1);
+
+ var strBytes = str.getBytes((length * bps + 7) / 8);
+ var strIdx = 0;
+ for (i = 0; i < length; i++) {
+ while (codeSize < bps) {
+ codeBuf <<= 8;
+ codeBuf |= strBytes[strIdx++];
+ codeSize += 8;
+ }
+ codeSize -= bps;
+ array[i] = (codeBuf >> codeSize) * sampleMul;
+ codeBuf &= (1 << codeSize) - 1;
+ }
+ return array;
+ },
+
+ getIR: function PDFFunction_getIR(xref, fn) {
+ var dict = fn.dict;
+ if (!dict) {
+ dict = fn;
+ }
+
+ var types = [this.constructSampled,
+ null,
+ this.constructInterpolated,
+ this.constructStiched,
+ this.constructPostScript];
+
+ var typeNum = dict.get('FunctionType');
+ var typeFn = types[typeNum];
+ if (!typeFn) {
+ error('Unknown type of function');
+ }
+
+ return typeFn.call(this, fn, dict, xref);
+ },
+
+ fromIR: function PDFFunction_fromIR(IR) {
+ var type = IR[0];
+ switch (type) {
+ case CONSTRUCT_SAMPLED:
+ return this.constructSampledFromIR(IR);
+ case CONSTRUCT_INTERPOLATED:
+ return this.constructInterpolatedFromIR(IR);
+ case CONSTRUCT_STICHED:
+ return this.constructStichedFromIR(IR);
+ //case CONSTRUCT_POSTSCRIPT:
+ default:
+ return this.constructPostScriptFromIR(IR);
+ }
+ },
+
+ parse: function PDFFunction_parse(xref, fn) {
+ var IR = this.getIR(xref, fn);
+ return this.fromIR(IR);
+ },
+
+ parseArray: function PDFFunction_parseArray(xref, fnObj) {
+ if (!isArray(fnObj)) {
+ // not an array -- parsing as regular function
+ return this.parse(xref, fnObj);
+ }
+
+ var fnArray = [];
+ for (var j = 0, jj = fnObj.length; j < jj; j++) {
+ var obj = xref.fetchIfRef(fnObj[j]);
+ fnArray.push(PDFFunction.parse(xref, obj));
+ }
+ return function (src, srcOffset, dest, destOffset) {
+ for (var i = 0, ii = fnArray.length; i < ii; i++) {
+ fnArray[i](src, srcOffset, dest, destOffset + i);
+ }
+ };
+ },
+
+ constructSampled: function PDFFunction_constructSampled(str, dict) {
+ function toMultiArray(arr) {
+ var inputLength = arr.length;
+ var out = [];
+ var index = 0;
+ for (var i = 0; i < inputLength; i += 2) {
+ out[index] = [arr[i], arr[i + 1]];
+ ++index;
+ }
+ return out;
+ }
+ var domain = dict.get('Domain');
+ var range = dict.get('Range');
+
+ if (!domain || !range) {
+ error('No domain or range');
+ }
+
+ var inputSize = domain.length / 2;
+ var outputSize = range.length / 2;
+
+ domain = toMultiArray(domain);
+ range = toMultiArray(range);
+
+ var size = dict.get('Size');
+ var bps = dict.get('BitsPerSample');
+ var order = dict.get('Order') || 1;
+ if (order !== 1) {
+ // No description how cubic spline interpolation works in PDF32000:2008
+ // As in poppler, ignoring order, linear interpolation may work as good
+ info('No support for cubic spline interpolation: ' + order);
+ }
+
+ var encode = dict.get('Encode');
+ if (!encode) {
+ encode = [];
+ for (var i = 0; i < inputSize; ++i) {
+ encode.push(0);
+ encode.push(size[i] - 1);
+ }
+ }
+ encode = toMultiArray(encode);
+
+ var decode = dict.get('Decode');
+ if (!decode) {
+ decode = range;
+ } else {
+ decode = toMultiArray(decode);
+ }
+
+ var samples = this.getSampleArray(size, outputSize, bps, str);
+
+ return [
+ CONSTRUCT_SAMPLED, inputSize, domain, encode, decode, samples, size,
+ outputSize, Math.pow(2, bps) - 1, range
+ ];
+ },
+
+ constructSampledFromIR: function PDFFunction_constructSampledFromIR(IR) {
+ // See chapter 3, page 109 of the PDF reference
+ function interpolate(x, xmin, xmax, ymin, ymax) {
+ return ymin + ((x - xmin) * ((ymax - ymin) / (xmax - xmin)));
+ }
+
+ return function constructSampledFromIRResult(src, srcOffset,
+ dest, destOffset) {
+ // See chapter 3, page 110 of the PDF reference.
+ var m = IR[1];
+ var domain = IR[2];
+ var encode = IR[3];
+ var decode = IR[4];
+ var samples = IR[5];
+ var size = IR[6];
+ var n = IR[7];
+ //var mask = IR[8];
+ var range = IR[9];
+
+ // Building the cube vertices: its part and sample index
+ // http://rjwagner49.com/Mathematics/Interpolation.pdf
+ var cubeVertices = 1 << m;
+ var cubeN = new Float64Array(cubeVertices);
+ var cubeVertex = new Uint32Array(cubeVertices);
+ var i, j;
+ for (j = 0; j < cubeVertices; j++) {
+ cubeN[j] = 1;
+ }
+
+ var k = n, pos = 1;
+ // Map x_i to y_j for 0 <= i < m using the sampled function.
+ for (i = 0; i < m; ++i) {
+ // x_i' = min(max(x_i, Domain_2i), Domain_2i+1)
+ var domain_2i = domain[i][0];
+ var domain_2i_1 = domain[i][1];
+ var xi = Math.min(Math.max(src[srcOffset +i], domain_2i),
+ domain_2i_1);
+
+ // e_i = Interpolate(x_i', Domain_2i, Domain_2i+1,
+ // Encode_2i, Encode_2i+1)
+ var e = interpolate(xi, domain_2i, domain_2i_1,
+ encode[i][0], encode[i][1]);
+
+ // e_i' = min(max(e_i, 0), Size_i - 1)
+ var size_i = size[i];
+ e = Math.min(Math.max(e, 0), size_i - 1);
+
+ // Adjusting the cube: N and vertex sample index
+ var e0 = e < size_i - 1 ? Math.floor(e) : e - 1; // e1 = e0 + 1;
+ var n0 = e0 + 1 - e; // (e1 - e) / (e1 - e0);
+ var n1 = e - e0; // (e - e0) / (e1 - e0);
+ var offset0 = e0 * k;
+ var offset1 = offset0 + k; // e1 * k
+ for (j = 0; j < cubeVertices; j++) {
+ if (j & pos) {
+ cubeN[j] *= n1;
+ cubeVertex[j] += offset1;
+ } else {
+ cubeN[j] *= n0;
+ cubeVertex[j] += offset0;
+ }
+ }
+
+ k *= size_i;
+ pos <<= 1;
+ }
+
+ for (j = 0; j < n; ++j) {
+ // Sum all cube vertices' samples portions
+ var rj = 0;
+ for (i = 0; i < cubeVertices; i++) {
+ rj += samples[cubeVertex[i] + j] * cubeN[i];
+ }
+
+ // r_j' = Interpolate(r_j, 0, 2^BitsPerSample - 1,
+ // Decode_2j, Decode_2j+1)
+ rj = interpolate(rj, 0, 1, decode[j][0], decode[j][1]);
+
+ // y_j = min(max(r_j, range_2j), range_2j+1)
+ dest[destOffset + j] = Math.min(Math.max(rj, range[j][0]),
+ range[j][1]);
+ }
+ };
+ },
+
+ constructInterpolated: function PDFFunction_constructInterpolated(str,
+ dict) {
+ var c0 = dict.get('C0') || [0];
+ var c1 = dict.get('C1') || [1];
+ var n = dict.get('N');
+
+ if (!isArray(c0) || !isArray(c1)) {
+ error('Illegal dictionary for interpolated function');
+ }
+
+ var length = c0.length;
+ var diff = [];
+ for (var i = 0; i < length; ++i) {
+ diff.push(c1[i] - c0[i]);
+ }
+
+ return [CONSTRUCT_INTERPOLATED, c0, diff, n];
+ },
+
+ constructInterpolatedFromIR:
+ function PDFFunction_constructInterpolatedFromIR(IR) {
+ var c0 = IR[1];
+ var diff = IR[2];
+ var n = IR[3];
+
+ var length = diff.length;
+
+ return function constructInterpolatedFromIRResult(src, srcOffset,
+ dest, destOffset) {
+ var x = n === 1 ? src[srcOffset] : Math.pow(src[srcOffset], n);
+
+ for (var j = 0; j < length; ++j) {
+ dest[destOffset + j] = c0[j] + (x * diff[j]);
+ }
+ };
+ },
+
+ constructStiched: function PDFFunction_constructStiched(fn, dict, xref) {
+ var domain = dict.get('Domain');
+
+ if (!domain) {
+ error('No domain');
+ }
+
+ var inputSize = domain.length / 2;
+ if (inputSize !== 1) {
+ error('Bad domain for stiched function');
+ }
+
+ var fnRefs = dict.get('Functions');
+ var fns = [];
+ for (var i = 0, ii = fnRefs.length; i < ii; ++i) {
+ fns.push(PDFFunction.getIR(xref, xref.fetchIfRef(fnRefs[i])));
+ }
+
+ var bounds = dict.get('Bounds');
+ var encode = dict.get('Encode');
+
+ return [CONSTRUCT_STICHED, domain, bounds, encode, fns];
+ },
+
+ constructStichedFromIR: function PDFFunction_constructStichedFromIR(IR) {
+ var domain = IR[1];
+ var bounds = IR[2];
+ var encode = IR[3];
+ var fnsIR = IR[4];
+ var fns = [];
+ var tmpBuf = new Float32Array(1);
+
+ for (var i = 0, ii = fnsIR.length; i < ii; i++) {
+ fns.push(PDFFunction.fromIR(fnsIR[i]));
+ }
+
+ return function constructStichedFromIRResult(src, srcOffset,
+ dest, destOffset) {
+ var clip = function constructStichedFromIRClip(v, min, max) {
+ if (v > max) {
+ v = max;
+ } else if (v < min) {
+ v = min;
+ }
+ return v;
+ };
+
+ // clip to domain
+ var v = clip(src[srcOffset], domain[0], domain[1]);
+ // calulate which bound the value is in
+ for (var i = 0, ii = bounds.length; i < ii; ++i) {
+ if (v < bounds[i]) {
+ break;
+ }
+ }
+
+ // encode value into domain of function
+ var dmin = domain[0];
+ if (i > 0) {
+ dmin = bounds[i - 1];
+ }
+ var dmax = domain[1];
+ if (i < bounds.length) {
+ dmax = bounds[i];
+ }
+
+ var rmin = encode[2 * i];
+ var rmax = encode[2 * i + 1];
+
+ tmpBuf[0] = rmin + (v - dmin) * (rmax - rmin) / (dmax - dmin);
+
+ // call the appropriate function
+ fns[i](tmpBuf, 0, dest, destOffset);
+ };
+ },
+
+ constructPostScript: function PDFFunction_constructPostScript(fn, dict,
+ xref) {
+ var domain = dict.get('Domain');
+ var range = dict.get('Range');
+
+ if (!domain) {
+ error('No domain.');
+ }
+
+ if (!range) {
+ error('No range.');
+ }
+
+ var lexer = new PostScriptLexer(fn);
+ var parser = new PostScriptParser(lexer);
+ var code = parser.parse();
+
+ return [CONSTRUCT_POSTSCRIPT, domain, range, code];
+ },
+
+ constructPostScriptFromIR: function PDFFunction_constructPostScriptFromIR(
+ IR) {
+ var domain = IR[1];
+ var range = IR[2];
+ var code = IR[3];
+
+ var compiled = (new PostScriptCompiler()).compile(code, domain, range);
+ if (compiled) {
+ // Compiled function consists of simple expressions such as addition,
+ // subtraction, Math.max, and also contains 'var' and 'return'
+ // statements. See the generation in the PostScriptCompiler below.
+ /*jshint -W054 */
+ return new Function('src', 'srcOffset', 'dest', 'destOffset', compiled);
+ }
+
+ info('Unable to compile PS function');
+
+ var numOutputs = range.length >> 1;
+ var numInputs = domain.length >> 1;
+ var evaluator = new PostScriptEvaluator(code);
+ // Cache the values for a big speed up, the cache size is limited though
+ // since the number of possible values can be huge from a PS function.
+ var cache = {};
+ // The MAX_CACHE_SIZE is set to ~4x the maximum number of distinct values
+ // seen in our tests.
+ var MAX_CACHE_SIZE = 2048 * 4;
+ var cache_available = MAX_CACHE_SIZE;
+ var tmpBuf = new Float32Array(numInputs);
+
+ return function constructPostScriptFromIRResult(src, srcOffset,
+ dest, destOffset) {
+ var i, value;
+ var key = '';
+ var input = tmpBuf;
+ for (i = 0; i < numInputs; i++) {
+ value = src[srcOffset + i];
+ input[i] = value;
+ key += value + '_';
+ }
+
+ var cachedValue = cache[key];
+ if (cachedValue !== undefined) {
+ dest.set(cachedValue, destOffset);
+ return;
+ }
+
+ var output = new Float32Array(numOutputs);
+ var stack = evaluator.execute(input);
+ var stackIndex = stack.length - numOutputs;
+ for (i = 0; i < numOutputs; i++) {
+ value = stack[stackIndex + i];
+ var bound = range[i * 2];
+ if (value < bound) {
+ value = bound;
+ } else {
+ bound = range[i * 2 +1];
+ if (value > bound) {
+ value = bound;
+ }
+ }
+ output[i] = value;
+ }
+ if (cache_available > 0) {
+ cache_available--;
+ cache[key] = output;
+ }
+ dest.set(output, destOffset);
+ };
+ }
+ };
+})();
+
+function isPDFFunction(v) {
+ var fnDict;
+ if (typeof v !== 'object') {
+ return false;
+ } else if (isDict(v)) {
+ fnDict = v;
+ } else if (isStream(v)) {
+ fnDict = v.dict;
+ } else {
+ return false;
+ }
+ return fnDict.has('FunctionType');
+}
+
+var PostScriptStack = (function PostScriptStackClosure() {
+ var MAX_STACK_SIZE = 100;
+ function PostScriptStack(initialStack) {
+ this.stack = !initialStack ? [] :
+ Array.prototype.slice.call(initialStack, 0);
+ }
+
+ PostScriptStack.prototype = {
+ push: function PostScriptStack_push(value) {
+ if (this.stack.length >= MAX_STACK_SIZE) {
+ error('PostScript function stack overflow.');
+ }
+ this.stack.push(value);
+ },
+ pop: function PostScriptStack_pop() {
+ if (this.stack.length <= 0) {
+ error('PostScript function stack underflow.');
+ }
+ return this.stack.pop();
+ },
+ copy: function PostScriptStack_copy(n) {
+ if (this.stack.length + n >= MAX_STACK_SIZE) {
+ error('PostScript function stack overflow.');
+ }
+ var stack = this.stack;
+ for (var i = stack.length - n, j = n - 1; j >= 0; j--, i++) {
+ stack.push(stack[i]);
+ }
+ },
+ index: function PostScriptStack_index(n) {
+ this.push(this.stack[this.stack.length - n - 1]);
+ },
+ // rotate the last n stack elements p times
+ roll: function PostScriptStack_roll(n, p) {
+ var stack = this.stack;
+ var l = stack.length - n;
+ var r = stack.length - 1, c = l + (p - Math.floor(p / n) * n), i, j, t;
+ for (i = l, j = r; i < j; i++, j--) {
+ t = stack[i]; stack[i] = stack[j]; stack[j] = t;
+ }
+ for (i = l, j = c - 1; i < j; i++, j--) {
+ t = stack[i]; stack[i] = stack[j]; stack[j] = t;
+ }
+ for (i = c, j = r; i < j; i++, j--) {
+ t = stack[i]; stack[i] = stack[j]; stack[j] = t;
+ }
+ }
+ };
+ return PostScriptStack;
+})();
+var PostScriptEvaluator = (function PostScriptEvaluatorClosure() {
+ function PostScriptEvaluator(operators) {
+ this.operators = operators;
+ }
+ PostScriptEvaluator.prototype = {
+ execute: function PostScriptEvaluator_execute(initialStack) {
+ var stack = new PostScriptStack(initialStack);
+ var counter = 0;
+ var operators = this.operators;
+ var length = operators.length;
+ var operator, a, b;
+ while (counter < length) {
+ operator = operators[counter++];
+ if (typeof operator === 'number') {
+ // Operator is really an operand and should be pushed to the stack.
+ stack.push(operator);
+ continue;
+ }
+ switch (operator) {
+ // non standard ps operators
+ case 'jz': // jump if false
+ b = stack.pop();
+ a = stack.pop();
+ if (!a) {
+ counter = b;
+ }
+ break;
+ case 'j': // jump
+ a = stack.pop();
+ counter = a;
+ break;
+
+ // all ps operators in alphabetical order (excluding if/ifelse)
+ case 'abs':
+ a = stack.pop();
+ stack.push(Math.abs(a));
+ break;
+ case 'add':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a + b);
+ break;
+ case 'and':
+ b = stack.pop();
+ a = stack.pop();
+ if (isBool(a) && isBool(b)) {
+ stack.push(a && b);
+ } else {
+ stack.push(a & b);
+ }
+ break;
+ case 'atan':
+ a = stack.pop();
+ stack.push(Math.atan(a));
+ break;
+ case 'bitshift':
+ b = stack.pop();
+ a = stack.pop();
+ if (a > 0) {
+ stack.push(a << b);
+ } else {
+ stack.push(a >> b);
+ }
+ break;
+ case 'ceiling':
+ a = stack.pop();
+ stack.push(Math.ceil(a));
+ break;
+ case 'copy':
+ a = stack.pop();
+ stack.copy(a);
+ break;
+ case 'cos':
+ a = stack.pop();
+ stack.push(Math.cos(a));
+ break;
+ case 'cvi':
+ a = stack.pop() | 0;
+ stack.push(a);
+ break;
+ case 'cvr':
+ // noop
+ break;
+ case 'div':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a / b);
+ break;
+ case 'dup':
+ stack.copy(1);
+ break;
+ case 'eq':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a === b);
+ break;
+ case 'exch':
+ stack.roll(2, 1);
+ break;
+ case 'exp':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(Math.pow(a, b));
+ break;
+ case 'false':
+ stack.push(false);
+ break;
+ case 'floor':
+ a = stack.pop();
+ stack.push(Math.floor(a));
+ break;
+ case 'ge':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a >= b);
+ break;
+ case 'gt':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a > b);
+ break;
+ case 'idiv':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push((a / b) | 0);
+ break;
+ case 'index':
+ a = stack.pop();
+ stack.index(a);
+ break;
+ case 'le':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a <= b);
+ break;
+ case 'ln':
+ a = stack.pop();
+ stack.push(Math.log(a));
+ break;
+ case 'log':
+ a = stack.pop();
+ stack.push(Math.log(a) / Math.LN10);
+ break;
+ case 'lt':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a < b);
+ break;
+ case 'mod':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a % b);
+ break;
+ case 'mul':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a * b);
+ break;
+ case 'ne':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a !== b);
+ break;
+ case 'neg':
+ a = stack.pop();
+ stack.push(-a);
+ break;
+ case 'not':
+ a = stack.pop();
+ if (isBool(a)) {
+ stack.push(!a);
+ } else {
+ stack.push(~a);
+ }
+ break;
+ case 'or':
+ b = stack.pop();
+ a = stack.pop();
+ if (isBool(a) && isBool(b)) {
+ stack.push(a || b);
+ } else {
+ stack.push(a | b);
+ }
+ break;
+ case 'pop':
+ stack.pop();
+ break;
+ case 'roll':
+ b = stack.pop();
+ a = stack.pop();
+ stack.roll(a, b);
+ break;
+ case 'round':
+ a = stack.pop();
+ stack.push(Math.round(a));
+ break;
+ case 'sin':
+ a = stack.pop();
+ stack.push(Math.sin(a));
+ break;
+ case 'sqrt':
+ a = stack.pop();
+ stack.push(Math.sqrt(a));
+ break;
+ case 'sub':
+ b = stack.pop();
+ a = stack.pop();
+ stack.push(a - b);
+ break;
+ case 'true':
+ stack.push(true);
+ break;
+ case 'truncate':
+ a = stack.pop();
+ a = a < 0 ? Math.ceil(a) : Math.floor(a);
+ stack.push(a);
+ break;
+ case 'xor':
+ b = stack.pop();
+ a = stack.pop();
+ if (isBool(a) && isBool(b)) {
+ stack.push(a !== b);
+ } else {
+ stack.push(a ^ b);
+ }
+ break;
+ default:
+ error('Unknown operator ' + operator);
+ break;
+ }
+ }
+ return stack.stack;
+ }
+ };
+ return PostScriptEvaluator;
+})();
+
+// Most of the PDFs functions consist of simple operations such as:
+// roll, exch, sub, cvr, pop, index, dup, mul, if, gt, add.
+//
+// We can compile most of such programs, and at the same moment, we can
+// optimize some expressions using basic math properties. Keeping track of
+// min/max values will allow us to avoid extra Math.min/Math.max calls.
+var PostScriptCompiler = (function PostScriptCompilerClosure() {
+ function AstNode(type) {
+ this.type = type;
+ }
+ AstNode.prototype.visit = function (visitor) {
+ throw new Error('abstract method');
+ };
+
+ function AstArgument(index, min, max) {
+ AstNode.call(this, 'args');
+ this.index = index;
+ this.min = min;
+ this.max = max;
+ }
+ AstArgument.prototype = Object.create(AstNode.prototype);
+ AstArgument.prototype.visit = function (visitor) {
+ visitor.visitArgument(this);
+ };
+
+ function AstLiteral(number) {
+ AstNode.call(this, 'literal');
+ this.number = number;
+ this.min = number;
+ this.max = number;
+ }
+ AstLiteral.prototype = Object.create(AstNode.prototype);
+ AstLiteral.prototype.visit = function (visitor) {
+ visitor.visitLiteral(this);
+ };
+
+ function AstBinaryOperation(op, arg1, arg2, min, max) {
+ AstNode.call(this, 'binary');
+ this.op = op;
+ this.arg1 = arg1;
+ this.arg2 = arg2;
+ this.min = min;
+ this.max = max;
+ }
+ AstBinaryOperation.prototype = Object.create(AstNode.prototype);
+ AstBinaryOperation.prototype.visit = function (visitor) {
+ visitor.visitBinaryOperation(this);
+ };
+
+ function AstMin(arg, max) {
+ AstNode.call(this, 'max');
+ this.arg = arg;
+ this.min = arg.min;
+ this.max = max;
+ }
+ AstMin.prototype = Object.create(AstNode.prototype);
+ AstMin.prototype.visit = function (visitor) {
+ visitor.visitMin(this);
+ };
+
+ function AstVariable(index, min, max) {
+ AstNode.call(this, 'var');
+ this.index = index;
+ this.min = min;
+ this.max = max;
+ }
+ AstVariable.prototype = Object.create(AstNode.prototype);
+ AstVariable.prototype.visit = function (visitor) {
+ visitor.visitVariable(this);
+ };
+
+ function AstVariableDefinition(variable, arg) {
+ AstNode.call(this, 'definition');
+ this.variable = variable;
+ this.arg = arg;
+ }
+ AstVariableDefinition.prototype = Object.create(AstNode.prototype);
+ AstVariableDefinition.prototype.visit = function (visitor) {
+ visitor.visitVariableDefinition(this);
+ };
+
+ function ExpressionBuilderVisitor() {
+ this.parts = [];
+ }
+ ExpressionBuilderVisitor.prototype = {
+ visitArgument: function (arg) {
+ this.parts.push('Math.max(', arg.min, ', Math.min(',
+ arg.max, ', src[srcOffset + ', arg.index, ']))');
+ },
+ visitVariable: function (variable) {
+ this.parts.push('v', variable.index);
+ },
+ visitLiteral: function (literal) {
+ this.parts.push(literal.number);
+ },
+ visitBinaryOperation: function (operation) {
+ this.parts.push('(');
+ operation.arg1.visit(this);
+ this.parts.push(' ', operation.op, ' ');
+ operation.arg2.visit(this);
+ this.parts.push(')');
+ },
+ visitVariableDefinition: function (definition) {
+ this.parts.push('var ');
+ definition.variable.visit(this);
+ this.parts.push(' = ');
+ definition.arg.visit(this);
+ this.parts.push(';');
+ },
+ visitMin: function (max) {
+ this.parts.push('Math.min(');
+ max.arg.visit(this);
+ this.parts.push(', ', max.max, ')');
+ },
+ toString: function () {
+ return this.parts.join('');
+ }
+ };
+
+ function buildAddOperation(num1, num2) {
+ if (num2.type === 'literal' && num2.number === 0) {
+ // optimization: second operand is 0
+ return num1;
+ }
+ if (num1.type === 'literal' && num1.number === 0) {
+ // optimization: first operand is 0
+ return num2;
+ }
+ if (num2.type === 'literal' && num1.type === 'literal') {
+ // optimization: operands operand are literals
+ return new AstLiteral(num1.number + num2.number);
+ }
+ return new AstBinaryOperation('+', num1, num2,
+ num1.min + num2.min, num1.max + num2.max);
+ }
+
+ function buildMulOperation(num1, num2) {
+ if (num2.type === 'literal') {
+ // optimization: second operands is a literal...
+ if (num2.number === 0) {
+ return new AstLiteral(0); // and it's 0
+ } else if (num2.number === 1) {
+ return num1; // and it's 1
+ } else if (num1.type === 'literal') {
+ // ... and first operands is a literal too
+ return new AstLiteral(num1.number * num2.number);
+ }
+ }
+ if (num1.type === 'literal') {
+ // optimization: first operands is a literal...
+ if (num1.number === 0) {
+ return new AstLiteral(0); // and it's 0
+ } else if (num1.number === 1) {
+ return num2; // and it's 1
+ }
+ }
+ var min = Math.min(num1.min * num2.min, num1.min * num2.max,
+ num1.max * num2.min, num1.max * num2.max);
+ var max = Math.max(num1.min * num2.min, num1.min * num2.max,
+ num1.max * num2.min, num1.max * num2.max);
+ return new AstBinaryOperation('*', num1, num2, min, max);
+ }
+
+ function buildSubOperation(num1, num2) {
+ if (num2.type === 'literal') {
+ // optimization: second operands is a literal...
+ if (num2.number === 0) {
+ return num1; // ... and it's 0
+ } else if (num1.type === 'literal') {
+ // ... and first operands is a literal too
+ return new AstLiteral(num1.number - num2.number);
+ }
+ }
+ if (num2.type === 'binary' && num2.op === '-' &&
+ num1.type === 'literal' && num1.number === 1 &&
+ num2.arg1.type === 'literal' && num2.arg1.number === 1) {
+ // optimization for case: 1 - (1 - x)
+ return num2.arg2;
+ }
+ return new AstBinaryOperation('-', num1, num2,
+ num1.min - num2.max, num1.max - num2.min);
+ }
+
+ function buildMinOperation(num1, max) {
+ if (num1.min >= max) {
+ // optimization: num1 min value is not less than required max
+ return new AstLiteral(max); // just returning max
+ } else if (num1.max <= max) {
+ // optimization: num1 max value is not greater than required max
+ return num1; // just returning an argument
+ }
+ return new AstMin(num1, max);
+ }
+
+ function PostScriptCompiler() {}
+ PostScriptCompiler.prototype = {
+ compile: function PostScriptCompiler_compile(code, domain, range) {
+ var stack = [];
+ var i, ii;
+ var instructions = [];
+ var inputSize = domain.length >> 1, outputSize = range.length >> 1;
+ var lastRegister = 0;
+ var n, j, min, max;
+ var num1, num2, ast1, ast2, tmpVar, item;
+ for (i = 0; i < inputSize; i++) {
+ stack.push(new AstArgument(i, domain[i * 2], domain[i * 2 + 1]));
+ }
+
+ for (i = 0, ii = code.length; i < ii; i++) {
+ item = code[i];
+ if (typeof item === 'number') {
+ stack.push(new AstLiteral(item));
+ continue;
+ }
+
+ switch (item) {
+ case 'add':
+ if (stack.length < 2) {
+ return null;
+ }
+ num2 = stack.pop();
+ num1 = stack.pop();
+ stack.push(buildAddOperation(num1, num2));
+ break;
+ case 'cvr':
+ if (stack.length < 1) {
+ return null;
+ }
+ break;
+ case 'mul':
+ if (stack.length < 2) {
+ return null;
+ }
+ num2 = stack.pop();
+ num1 = stack.pop();
+ stack.push(buildMulOperation(num1, num2));
+ break;
+ case 'sub':
+ if (stack.length < 2) {
+ return null;
+ }
+ num2 = stack.pop();
+ num1 = stack.pop();
+ stack.push(buildSubOperation(num1, num2));
+ break;
+ case 'exch':
+ if (stack.length < 2) {
+ return null;
+ }
+ ast1 = stack.pop(); ast2 = stack.pop();
+ stack.push(ast1, ast2);
+ break;
+ case 'pop':
+ if (stack.length < 1) {
+ return null;
+ }
+ stack.pop();
+ break;
+ case 'index':
+ if (stack.length < 1) {
+ return null;
+ }
+ num1 = stack.pop();
+ if (num1.type !== 'literal') {
+ return null;
+ }
+ n = num1.number;
+ if (n < 0 || (n|0) !== n || stack.length < n) {
+ return null;
+ }
+ ast1 = stack[stack.length - n - 1];
+ if (ast1.type === 'literal' || ast1.type === 'var') {
+ stack.push(ast1);
+ break;
+ }
+ tmpVar = new AstVariable(lastRegister++, ast1.min, ast1.max);
+ stack[stack.length - n - 1] = tmpVar;
+ stack.push(tmpVar);
+ instructions.push(new AstVariableDefinition(tmpVar, ast1));
+ break;
+ case 'dup':
+ if (stack.length < 1) {
+ return null;
+ }
+ if (typeof code[i + 1] === 'number' && code[i + 2] === 'gt' &&
+ code[i + 3] === i + 7 && code[i + 4] === 'jz' &&
+ code[i + 5] === 'pop' && code[i + 6] === code[i + 1]) {
+ // special case of the commands sequence for the min operation
+ num1 = stack.pop();
+ stack.push(buildMinOperation(num1, code[i + 1]));
+ i += 6;
+ break;
+ }
+ ast1 = stack[stack.length - 1];
+ if (ast1.type === 'literal' || ast1.type === 'var') {
+ // we don't have to save into intermediate variable a literal or
+ // variable.
+ stack.push(ast1);
+ break;
+ }
+ tmpVar = new AstVariable(lastRegister++, ast1.min, ast1.max);
+ stack[stack.length - 1] = tmpVar;
+ stack.push(tmpVar);
+ instructions.push(new AstVariableDefinition(tmpVar, ast1));
+ break;
+ case 'roll':
+ if (stack.length < 2) {
+ return null;
+ }
+ num2 = stack.pop();
+ num1 = stack.pop();
+ if (num2.type !== 'literal' || num1.type !== 'literal') {
+ // both roll operands must be numbers
+ return null;
+ }
+ j = num2.number;
+ n = num1.number;
+ if (n <= 0 || (n|0) !== n || (j|0) !== j || stack.length < n) {
+ // ... and integers
+ return null;
+ }
+ j = ((j % n) + n) % n;
+ if (j === 0) {
+ break; // just skipping -- there are nothing to rotate
+ }
+ Array.prototype.push.apply(stack,
+ stack.splice(stack.length - n, n - j));
+ break;
+ default:
+ return null; // unsupported operator
+ }
+ }
+
+ if (stack.length !== outputSize) {
+ return null;
+ }
+
+ var result = [];
+ instructions.forEach(function (instruction) {
+ var statementBuilder = new ExpressionBuilderVisitor();
+ instruction.visit(statementBuilder);
+ result.push(statementBuilder.toString());
+ });
+ stack.forEach(function (expr, i) {
+ var statementBuilder = new ExpressionBuilderVisitor();
+ expr.visit(statementBuilder);
+ var min = range[i * 2], max = range[i * 2 + 1];
+ var out = [statementBuilder.toString()];
+ if (min > expr.min) {
+ out.unshift('Math.max(', min, ', ');
+ out.push(')');
+ }
+ if (max < expr.max) {
+ out.unshift('Math.min(', max, ', ');
+ out.push(')');
+ }
+ out.unshift('dest[destOffset + ', i, '] = ');
+ out.push(';');
+ result.push(out.join(''));
+ });
+ return result.join('\n');
+ }
+ };
+
+ return PostScriptCompiler;
+})();
+
+
+var ColorSpace = (function ColorSpaceClosure() {
+ // Constructor should define this.numComps, this.defaultColor, this.name
+ function ColorSpace() {
+ error('should not call ColorSpace constructor');
+ }
+
+ ColorSpace.prototype = {
+ /**
+ * Converts the color value to the RGB color. The color components are
+ * located in the src array starting from the srcOffset. Returns the array
+ * of the rgb components, each value ranging from [0,255].
+ */
+ getRgb: function ColorSpace_getRgb(src, srcOffset) {
+ var rgb = new Uint8Array(3);
+ this.getRgbItem(src, srcOffset, rgb, 0);
+ return rgb;
+ },
+ /**
+ * Converts the color value to the RGB color, similar to the getRgb method.
+ * The result placed into the dest array starting from the destOffset.
+ */
+ getRgbItem: function ColorSpace_getRgbItem(src, srcOffset,
+ dest, destOffset) {
+ error('Should not call ColorSpace.getRgbItem');
+ },
+ /**
+ * Converts the specified number of the color values to the RGB colors.
+ * The colors are located in the src array starting from the srcOffset.
+ * The result is placed into the dest array starting from the destOffset.
+ * The src array items shall be in [0,2^bits) range, the dest array items
+ * will be in [0,255] range. alpha01 indicates how many alpha components
+ * there are in the dest array; it will be either 0 (RGB array) or 1 (RGBA
+ * array).
+ */
+ getRgbBuffer: function ColorSpace_getRgbBuffer(src, srcOffset, count,
+ dest, destOffset, bits,
+ alpha01) {
+ error('Should not call ColorSpace.getRgbBuffer');
+ },
+ /**
+ * Determines the number of bytes required to store the result of the
+ * conversion done by the getRgbBuffer method. As in getRgbBuffer,
+ * |alpha01| is either 0 (RGB output) or 1 (RGBA output).
+ */
+ getOutputLength: function ColorSpace_getOutputLength(inputLength,
+ alpha01) {
+ error('Should not call ColorSpace.getOutputLength');
+ },
+ /**
+ * Returns true if source data will be equal the result/output data.
+ */
+ isPassthrough: function ColorSpace_isPassthrough(bits) {
+ return false;
+ },
+ /**
+ * Fills in the RGB colors in the destination buffer. alpha01 indicates
+ * how many alpha components there are in the dest array; it will be either
+ * 0 (RGB array) or 1 (RGBA array).
+ */
+ fillRgb: function ColorSpace_fillRgb(dest, originalWidth,
+ originalHeight, width, height,
+ actualHeight, bpc, comps, alpha01) {
+ var count = originalWidth * originalHeight;
+ var rgbBuf = null;
+ var numComponentColors = 1 << bpc;
+ var needsResizing = originalHeight !== height || originalWidth !== width;
+ var i, ii;
+
+ if (this.isPassthrough(bpc)) {
+ rgbBuf = comps;
+ } else if (this.numComps === 1 && count > numComponentColors &&
+ this.name !== 'DeviceGray' && this.name !== 'DeviceRGB') {
+ // Optimization: create a color map when there is just one component and
+ // we are converting more colors than the size of the color map. We
+ // don't build the map if the colorspace is gray or rgb since those
+ // methods are faster than building a map. This mainly offers big speed
+ // ups for indexed and alternate colorspaces.
+ //
+ // TODO it may be worth while to cache the color map. While running
+ // testing I never hit a cache so I will leave that out for now (perhaps
+ // we are reparsing colorspaces too much?).
+ var allColors = bpc <= 8 ? new Uint8Array(numComponentColors) :
+ new Uint16Array(numComponentColors);
+ var key;
+ for (i = 0; i < numComponentColors; i++) {
+ allColors[i] = i;
+ }
+ var colorMap = new Uint8Array(numComponentColors * 3);
+ this.getRgbBuffer(allColors, 0, numComponentColors, colorMap, 0, bpc,
+ /* alpha01 = */ 0);
+
+ var destPos, rgbPos;
+ if (!needsResizing) {
+ // Fill in the RGB values directly into |dest|.
+ destPos = 0;
+ for (i = 0; i < count; ++i) {
+ key = comps[i] * 3;
+ dest[destPos++] = colorMap[key];
+ dest[destPos++] = colorMap[key + 1];
+ dest[destPos++] = colorMap[key + 2];
+ destPos += alpha01;
+ }
+ } else {
+ rgbBuf = new Uint8Array(count * 3);
+ rgbPos = 0;
+ for (i = 0; i < count; ++i) {
+ key = comps[i] * 3;
+ rgbBuf[rgbPos++] = colorMap[key];
+ rgbBuf[rgbPos++] = colorMap[key + 1];
+ rgbBuf[rgbPos++] = colorMap[key + 2];
+ }
+ }
+ } else {
+ if (!needsResizing) {
+ // Fill in the RGB values directly into |dest|.
+ this.getRgbBuffer(comps, 0, width * actualHeight, dest, 0, bpc,
+ alpha01);
+ } else {
+ rgbBuf = new Uint8Array(count * 3);
+ this.getRgbBuffer(comps, 0, count, rgbBuf, 0, bpc,
+ /* alpha01 = */ 0);
+ }
+ }
+
+ if (rgbBuf) {
+ if (needsResizing) {
+ PDFImage.resize(rgbBuf, bpc, 3, originalWidth, originalHeight, width,
+ height, dest, alpha01);
+ } else {
+ rgbPos = 0;
+ destPos = 0;
+ for (i = 0, ii = width * actualHeight; i < ii; i++) {
+ dest[destPos++] = rgbBuf[rgbPos++];
+ dest[destPos++] = rgbBuf[rgbPos++];
+ dest[destPos++] = rgbBuf[rgbPos++];
+ destPos += alpha01;
+ }
+ }
+ }
+ },
+ /**
+ * True if the colorspace has components in the default range of [0, 1].
+ * This should be true for all colorspaces except for lab color spaces
+ * which are [0,100], [-128, 127], [-128, 127].
+ */
+ usesZeroToOneRange: true
+ };
+
+ ColorSpace.parse = function ColorSpace_parse(cs, xref, res) {
+ var IR = ColorSpace.parseToIR(cs, xref, res);
+ if (IR instanceof AlternateCS) {
+ return IR;
+ }
+ return ColorSpace.fromIR(IR);
+ };
+
+ ColorSpace.fromIR = function ColorSpace_fromIR(IR) {
+ var name = isArray(IR) ? IR[0] : IR;
+ var whitePoint, blackPoint, gamma;
+
+ switch (name) {
+ case 'DeviceGrayCS':
+ return this.singletons.gray;
+ case 'DeviceRgbCS':
+ return this.singletons.rgb;
+ case 'DeviceCmykCS':
+ return this.singletons.cmyk;
+ case 'CalGrayCS':
+ whitePoint = IR[1].WhitePoint;
+ blackPoint = IR[1].BlackPoint;
+ gamma = IR[1].Gamma;
+ return new CalGrayCS(whitePoint, blackPoint, gamma);
+ case 'CalRGBCS':
+ whitePoint = IR[1].WhitePoint;
+ blackPoint = IR[1].BlackPoint;
+ gamma = IR[1].Gamma;
+ var matrix = IR[1].Matrix;
+ return new CalRGBCS(whitePoint, blackPoint, gamma, matrix);
+ case 'PatternCS':
+ var basePatternCS = IR[1];
+ if (basePatternCS) {
+ basePatternCS = ColorSpace.fromIR(basePatternCS);
+ }
+ return new PatternCS(basePatternCS);
+ case 'IndexedCS':
+ var baseIndexedCS = IR[1];
+ var hiVal = IR[2];
+ var lookup = IR[3];
+ return new IndexedCS(ColorSpace.fromIR(baseIndexedCS), hiVal, lookup);
+ case 'AlternateCS':
+ var numComps = IR[1];
+ var alt = IR[2];
+ var tintFnIR = IR[3];
+
+ return new AlternateCS(numComps, ColorSpace.fromIR(alt),
+ PDFFunction.fromIR(tintFnIR));
+ case 'LabCS':
+ whitePoint = IR[1].WhitePoint;
+ blackPoint = IR[1].BlackPoint;
+ var range = IR[1].Range;
+ return new LabCS(whitePoint, blackPoint, range);
+ default:
+ error('Unknown name ' + name);
+ }
+ return null;
+ };
+
+ ColorSpace.parseToIR = function ColorSpace_parseToIR(cs, xref, res) {
+ if (isName(cs)) {
+ var colorSpaces = res.get('ColorSpace');
+ if (isDict(colorSpaces)) {
+ var refcs = colorSpaces.get(cs.name);
+ if (refcs) {
+ cs = refcs;
+ }
+ }
+ }
+
+ cs = xref.fetchIfRef(cs);
+ var mode;
+
+ if (isName(cs)) {
+ mode = cs.name;
+ this.mode = mode;
+
+ switch (mode) {
+ case 'DeviceGray':
+ case 'G':
+ return 'DeviceGrayCS';
+ case 'DeviceRGB':
+ case 'RGB':
+ return 'DeviceRgbCS';
+ case 'DeviceCMYK':
+ case 'CMYK':
+ return 'DeviceCmykCS';
+ case 'Pattern':
+ return ['PatternCS', null];
+ default:
+ error('unrecognized colorspace ' + mode);
+ }
+ } else if (isArray(cs)) {
+ mode = cs[0].name;
+ this.mode = mode;
+ var numComps, params;
+
+ switch (mode) {
+ case 'DeviceGray':
+ case 'G':
+ return 'DeviceGrayCS';
+ case 'DeviceRGB':
+ case 'RGB':
+ return 'DeviceRgbCS';
+ case 'DeviceCMYK':
+ case 'CMYK':
+ return 'DeviceCmykCS';
+ case 'CalGray':
+ params = xref.fetchIfRef(cs[1]).getAll();
+ return ['CalGrayCS', params];
+ case 'CalRGB':
+ params = xref.fetchIfRef(cs[1]).getAll();
+ return ['CalRGBCS', params];
+ case 'ICCBased':
+ var stream = xref.fetchIfRef(cs[1]);
+ var dict = stream.dict;
+ numComps = dict.get('N');
+ if (numComps === 1) {
+ return 'DeviceGrayCS';
+ } else if (numComps === 3) {
+ return 'DeviceRgbCS';
+ } else if (numComps === 4) {
+ return 'DeviceCmykCS';
+ }
+ break;
+ case 'Pattern':
+ var basePatternCS = cs[1];
+ if (basePatternCS) {
+ basePatternCS = ColorSpace.parseToIR(basePatternCS, xref, res);
+ }
+ return ['PatternCS', basePatternCS];
+ case 'Indexed':
+ case 'I':
+ var baseIndexedCS = ColorSpace.parseToIR(cs[1], xref, res);
+ var hiVal = cs[2] + 1;
+ var lookup = xref.fetchIfRef(cs[3]);
+ if (isStream(lookup)) {
+ lookup = lookup.getBytes();
+ }
+ return ['IndexedCS', baseIndexedCS, hiVal, lookup];
+ case 'Separation':
+ case 'DeviceN':
+ var name = cs[1];
+ numComps = 1;
+ if (isName(name)) {
+ numComps = 1;
+ } else if (isArray(name)) {
+ numComps = name.length;
+ }
+ var alt = ColorSpace.parseToIR(cs[2], xref, res);
+ var tintFnIR = PDFFunction.getIR(xref, xref.fetchIfRef(cs[3]));
+ return ['AlternateCS', numComps, alt, tintFnIR];
+ case 'Lab':
+ params = cs[1].getAll();
+ return ['LabCS', params];
+ default:
+ error('unimplemented color space object "' + mode + '"');
+ }
+ } else {
+ error('unrecognized color space object: "' + cs + '"');
+ }
+ return null;
+ };
+ /**
+ * Checks if a decode map matches the default decode map for a color space.
+ * This handles the general decode maps where there are two values per
+ * component. e.g. [0, 1, 0, 1, 0, 1] for a RGB color.
+ * This does not handle Lab, Indexed, or Pattern decode maps since they are
+ * slightly different.
+ * @param {Array} decode Decode map (usually from an image).
+ * @param {Number} n Number of components the color space has.
+ */
+ ColorSpace.isDefaultDecode = function ColorSpace_isDefaultDecode(decode, n) {
+ if (!decode) {
+ return true;
+ }
+
+ if (n * 2 !== decode.length) {
+ warn('The decode map is not the correct length');
+ return true;
+ }
+ for (var i = 0, ii = decode.length; i < ii; i += 2) {
+ if (decode[i] !== 0 || decode[i + 1] !== 1) {
+ return false;
+ }
+ }
+ return true;
+ };
+
+ ColorSpace.singletons = {
+ get gray() {
+ return shadow(this, 'gray', new DeviceGrayCS());
+ },
+ get rgb() {
+ return shadow(this, 'rgb', new DeviceRgbCS());
+ },
+ get cmyk() {
+ return shadow(this, 'cmyk', new DeviceCmykCS());
+ }
+ };
+
+ return ColorSpace;
+})();
+
+/**
+ * Alternate color space handles both Separation and DeviceN color spaces. A
+ * Separation color space is actually just a DeviceN with one color component.
+ * Both color spaces use a tinting function to convert colors to a base color
+ * space.
+ */
+var AlternateCS = (function AlternateCSClosure() {
+ function AlternateCS(numComps, base, tintFn) {
+ this.name = 'Alternate';
+ this.numComps = numComps;
+ this.defaultColor = new Float32Array(numComps);
+ for (var i = 0; i < numComps; ++i) {
+ this.defaultColor[i] = 1;
+ }
+ this.base = base;
+ this.tintFn = tintFn;
+ this.tmpBuf = new Float32Array(base.numComps);
+ }
+
+ AlternateCS.prototype = {
+ getRgb: ColorSpace.prototype.getRgb,
+ getRgbItem: function AlternateCS_getRgbItem(src, srcOffset,
+ dest, destOffset) {
+ var tmpBuf = this.tmpBuf;
+ this.tintFn(src, srcOffset, tmpBuf, 0);
+ this.base.getRgbItem(tmpBuf, 0, dest, destOffset);
+ },
+ getRgbBuffer: function AlternateCS_getRgbBuffer(src, srcOffset, count,
+ dest, destOffset, bits,
+ alpha01) {
+ var tintFn = this.tintFn;
+ var base = this.base;
+ var scale = 1 / ((1 << bits) - 1);
+ var baseNumComps = base.numComps;
+ var usesZeroToOneRange = base.usesZeroToOneRange;
+ var isPassthrough = (base.isPassthrough(8) || !usesZeroToOneRange) &&
+ alpha01 === 0;
+ var pos = isPassthrough ? destOffset : 0;
+ var baseBuf = isPassthrough ? dest : new Uint8Array(baseNumComps * count);
+ var numComps = this.numComps;
+
+ var scaled = new Float32Array(numComps);
+ var tinted = new Float32Array(baseNumComps);
+ var i, j;
+ if (usesZeroToOneRange) {
+ for (i = 0; i < count; i++) {
+ for (j = 0; j < numComps; j++) {
+ scaled[j] = src[srcOffset++] * scale;
+ }
+ tintFn(scaled, 0, tinted, 0);
+ for (j = 0; j < baseNumComps; j++) {
+ baseBuf[pos++] = tinted[j] * 255;
+ }
+ }
+ } else {
+ for (i = 0; i < count; i++) {
+ for (j = 0; j < numComps; j++) {
+ scaled[j] = src[srcOffset++] * scale;
+ }
+ tintFn(scaled, 0, tinted, 0);
+ base.getRgbItem(tinted, 0, baseBuf, pos);
+ pos += baseNumComps;
+ }
+ }
+ if (!isPassthrough) {
+ base.getRgbBuffer(baseBuf, 0, count, dest, destOffset, 8, alpha01);
+ }
+ },
+ getOutputLength: function AlternateCS_getOutputLength(inputLength,
+ alpha01) {
+ return this.base.getOutputLength(inputLength *
+ this.base.numComps / this.numComps,
+ alpha01);
+ },
+ isPassthrough: ColorSpace.prototype.isPassthrough,
+ fillRgb: ColorSpace.prototype.fillRgb,
+ isDefaultDecode: function AlternateCS_isDefaultDecode(decodeMap) {
+ return ColorSpace.isDefaultDecode(decodeMap, this.numComps);
+ },
+ usesZeroToOneRange: true
+ };
+
+ return AlternateCS;
+})();
+
+var PatternCS = (function PatternCSClosure() {
+ function PatternCS(baseCS) {
+ this.name = 'Pattern';
+ this.base = baseCS;
+ }
+ PatternCS.prototype = {};
+
+ return PatternCS;
+})();
+
+var IndexedCS = (function IndexedCSClosure() {
+ function IndexedCS(base, highVal, lookup) {
+ this.name = 'Indexed';
+ this.numComps = 1;
+ this.defaultColor = new Uint8Array([0]);
+ this.base = base;
+ this.highVal = highVal;
+
+ var baseNumComps = base.numComps;
+ var length = baseNumComps * highVal;
+ var lookupArray;
+
+ if (isStream(lookup)) {
+ lookupArray = new Uint8Array(length);
+ var bytes = lookup.getBytes(length);
+ lookupArray.set(bytes);
+ } else if (isString(lookup)) {
+ lookupArray = new Uint8Array(length);
+ for (var i = 0; i < length; ++i) {
+ lookupArray[i] = lookup.charCodeAt(i);
+ }
+ } else if (lookup instanceof Uint8Array || lookup instanceof Array) {
+ lookupArray = lookup;
+ } else {
+ error('Unrecognized lookup table: ' + lookup);
+ }
+ this.lookup = lookupArray;
+ }
+
+ IndexedCS.prototype = {
+ getRgb: ColorSpace.prototype.getRgb,
+ getRgbItem: function IndexedCS_getRgbItem(src, srcOffset,
+ dest, destOffset) {
+ var numComps = this.base.numComps;
+ var start = src[srcOffset] * numComps;
+ this.base.getRgbItem(this.lookup, start, dest, destOffset);
+ },
+ getRgbBuffer: function IndexedCS_getRgbBuffer(src, srcOffset, count,
+ dest, destOffset, bits,
+ alpha01) {
+ var base = this.base;
+ var numComps = base.numComps;
+ var outputDelta = base.getOutputLength(numComps, alpha01);
+ var lookup = this.lookup;
+
+ for (var i = 0; i < count; ++i) {
+ var lookupPos = src[srcOffset++] * numComps;
+ base.getRgbBuffer(lookup, lookupPos, 1, dest, destOffset, 8, alpha01);
+ destOffset += outputDelta;
+ }
+ },
+ getOutputLength: function IndexedCS_getOutputLength(inputLength, alpha01) {
+ return this.base.getOutputLength(inputLength * this.base.numComps,
+ alpha01);
+ },
+ isPassthrough: ColorSpace.prototype.isPassthrough,
+ fillRgb: ColorSpace.prototype.fillRgb,
+ isDefaultDecode: function IndexedCS_isDefaultDecode(decodeMap) {
+ // indexed color maps shouldn't be changed
+ return true;
+ },
+ usesZeroToOneRange: true
+ };
+ return IndexedCS;
+})();
+
+var DeviceGrayCS = (function DeviceGrayCSClosure() {
+ function DeviceGrayCS() {
+ this.name = 'DeviceGray';
+ this.numComps = 1;
+ this.defaultColor = new Float32Array([0]);
+ }
+
+ DeviceGrayCS.prototype = {
+ getRgb: ColorSpace.prototype.getRgb,
+ getRgbItem: function DeviceGrayCS_getRgbItem(src, srcOffset,
+ dest, destOffset) {
+ var c = (src[srcOffset] * 255) | 0;
+ c = c < 0 ? 0 : c > 255 ? 255 : c;
+ dest[destOffset] = dest[destOffset + 1] = dest[destOffset + 2] = c;
+ },
+ getRgbBuffer: function DeviceGrayCS_getRgbBuffer(src, srcOffset, count,
+ dest, destOffset, bits,
+ alpha01) {
+ var scale = 255 / ((1 << bits) - 1);
+ var j = srcOffset, q = destOffset;
+ for (var i = 0; i < count; ++i) {
+ var c = (scale * src[j++]) | 0;
+ dest[q++] = c;
+ dest[q++] = c;
+ dest[q++] = c;
+ q += alpha01;
+ }
+ },
+ getOutputLength: function DeviceGrayCS_getOutputLength(inputLength,
+ alpha01) {
+ return inputLength * (3 + alpha01);
+ },
+ isPassthrough: ColorSpace.prototype.isPassthrough,
+ fillRgb: ColorSpace.prototype.fillRgb,
+ isDefaultDecode: function DeviceGrayCS_isDefaultDecode(decodeMap) {
+ return ColorSpace.isDefaultDecode(decodeMap, this.numComps);
+ },
+ usesZeroToOneRange: true
+ };
+ return DeviceGrayCS;
+})();
+
+var DeviceRgbCS = (function DeviceRgbCSClosure() {
+ function DeviceRgbCS() {
+ this.name = 'DeviceRGB';
+ this.numComps = 3;
+ this.defaultColor = new Float32Array([0, 0, 0]);
+ }
+ DeviceRgbCS.prototype = {
+ getRgb: ColorSpace.prototype.getRgb,
+ getRgbItem: function DeviceRgbCS_getRgbItem(src, srcOffset,
+ dest, destOffset) {
+ var r = (src[srcOffset] * 255) | 0;
+ var g = (src[srcOffset + 1] * 255) | 0;
+ var b = (src[srcOffset + 2] * 255) | 0;
+ dest[destOffset] = r < 0 ? 0 : r > 255 ? 255 : r;
+ dest[destOffset + 1] = g < 0 ? 0 : g > 255 ? 255 : g;
+ dest[destOffset + 2] = b < 0 ? 0 : b > 255 ? 255 : b;
+ },
+ getRgbBuffer: function DeviceRgbCS_getRgbBuffer(src, srcOffset, count,
+ dest, destOffset, bits,
+ alpha01) {
+ if (bits === 8 && alpha01 === 0) {
+ dest.set(src.subarray(srcOffset, srcOffset + count * 3), destOffset);
+ return;
+ }
+ var scale = 255 / ((1 << bits) - 1);
+ var j = srcOffset, q = destOffset;
+ for (var i = 0; i < count; ++i) {
+ dest[q++] = (scale * src[j++]) | 0;
+ dest[q++] = (scale * src[j++]) | 0;
+ dest[q++] = (scale * src[j++]) | 0;
+ q += alpha01;
+ }
+ },
+ getOutputLength: function DeviceRgbCS_getOutputLength(inputLength,
+ alpha01) {
+ return (inputLength * (3 + alpha01) / 3) | 0;
+ },
+ isPassthrough: function DeviceRgbCS_isPassthrough(bits) {
+ return bits === 8;
+ },
+ fillRgb: ColorSpace.prototype.fillRgb,
+ isDefaultDecode: function DeviceRgbCS_isDefaultDecode(decodeMap) {
+ return ColorSpace.isDefaultDecode(decodeMap, this.numComps);
+ },
+ usesZeroToOneRange: true
+ };
+ return DeviceRgbCS;
+})();
+
+var DeviceCmykCS = (function DeviceCmykCSClosure() {
+ // The coefficients below was found using numerical analysis: the method of
+ // steepest descent for the sum((f_i - color_value_i)^2) for r/g/b colors,
+ // where color_value is the tabular value from the table of sampled RGB colors
+ // from CMYK US Web Coated (SWOP) colorspace, and f_i is the corresponding
+ // CMYK color conversion using the estimation below:
+ // f(A, B,.. N) = Acc+Bcm+Ccy+Dck+c+Fmm+Gmy+Hmk+Im+Jyy+Kyk+Ly+Mkk+Nk+255
+ function convertToRgb(src, srcOffset, srcScale, dest, destOffset) {
+ var c = src[srcOffset + 0] * srcScale;
+ var m = src[srcOffset + 1] * srcScale;
+ var y = src[srcOffset + 2] * srcScale;
+ var k = src[srcOffset + 3] * srcScale;
+
+ var r =
+ (c * (-4.387332384609988 * c + 54.48615194189176 * m +
+ 18.82290502165302 * y + 212.25662451639585 * k +
+ -285.2331026137004) +
+ m * (1.7149763477362134 * m - 5.6096736904047315 * y +
+ -17.873870861415444 * k - 5.497006427196366) +
+ y * (-2.5217340131683033 * y - 21.248923337353073 * k +
+ 17.5119270841813) +
+ k * (-21.86122147463605 * k - 189.48180835922747) + 255) | 0;
+ var g =
+ (c * (8.841041422036149 * c + 60.118027045597366 * m +
+ 6.871425592049007 * y + 31.159100130055922 * k +
+ -79.2970844816548) +
+ m * (-15.310361306967817 * m + 17.575251261109482 * y +
+ 131.35250912493976 * k - 190.9453302588951) +
+ y * (4.444339102852739 * y + 9.8632861493405 * k - 24.86741582555878) +
+ k * (-20.737325471181034 * k - 187.80453709719578) + 255) | 0;
+ var b =
+ (c * (0.8842522430003296 * c + 8.078677503112928 * m +
+ 30.89978309703729 * y - 0.23883238689178934 * k +
+ -14.183576799673286) +
+ m * (10.49593273432072 * m + 63.02378494754052 * y +
+ 50.606957656360734 * k - 112.23884253719248) +
+ y * (0.03296041114873217 * y + 115.60384449646641 * k +
+ -193.58209356861505) +
+ k * (-22.33816807309886 * k - 180.12613974708367) + 255) | 0;
+
+ dest[destOffset] = r > 255 ? 255 : r < 0 ? 0 : r;
+ dest[destOffset + 1] = g > 255 ? 255 : g < 0 ? 0 : g;
+ dest[destOffset + 2] = b > 255 ? 255 : b < 0 ? 0 : b;
+ }
+
+ function DeviceCmykCS() {
+ this.name = 'DeviceCMYK';
+ this.numComps = 4;
+ this.defaultColor = new Float32Array([0, 0, 0, 1]);
+ }
+ DeviceCmykCS.prototype = {
+ getRgb: ColorSpace.prototype.getRgb,
+ getRgbItem: function DeviceCmykCS_getRgbItem(src, srcOffset,
+ dest, destOffset) {
+ convertToRgb(src, srcOffset, 1, dest, destOffset);
+ },
+ getRgbBuffer: function DeviceCmykCS_getRgbBuffer(src, srcOffset, count,
+ dest, destOffset, bits,
+ alpha01) {
+ var scale = 1 / ((1 << bits) - 1);
+ for (var i = 0; i < count; i++) {
+ convertToRgb(src, srcOffset, scale, dest, destOffset);
+ srcOffset += 4;
+ destOffset += 3 + alpha01;
+ }
+ },
+ getOutputLength: function DeviceCmykCS_getOutputLength(inputLength,
+ alpha01) {
+ return (inputLength / 4 * (3 + alpha01)) | 0;
+ },
+ isPassthrough: ColorSpace.prototype.isPassthrough,
+ fillRgb: ColorSpace.prototype.fillRgb,
+ isDefaultDecode: function DeviceCmykCS_isDefaultDecode(decodeMap) {
+ return ColorSpace.isDefaultDecode(decodeMap, this.numComps);
+ },
+ usesZeroToOneRange: true
+ };
+
+ return DeviceCmykCS;
+})();
+
+//
+// CalGrayCS: Based on "PDF Reference, Sixth Ed", p.245
+//
+var CalGrayCS = (function CalGrayCSClosure() {
+ function CalGrayCS(whitePoint, blackPoint, gamma) {
+ this.name = 'CalGray';
+ this.numComps = 1;
+ this.defaultColor = new Float32Array([0]);
+
+ if (!whitePoint) {
+ error('WhitePoint missing - required for color space CalGray');
+ }
+ blackPoint = blackPoint || [0, 0, 0];
+ gamma = gamma || 1;
+
+ // Translate arguments to spec variables.
+ this.XW = whitePoint[0];
+ this.YW = whitePoint[1];
+ this.ZW = whitePoint[2];
+
+ this.XB = blackPoint[0];
+ this.YB = blackPoint[1];
+ this.ZB = blackPoint[2];
+
+ this.G = gamma;
+
+ // Validate variables as per spec.
+ if (this.XW < 0 || this.ZW < 0 || this.YW !== 1) {
+ error('Invalid WhitePoint components for ' + this.name +
+ ', no fallback available');
+ }
+
+ if (this.XB < 0 || this.YB < 0 || this.ZB < 0) {
+ info('Invalid BlackPoint for ' + this.name + ', falling back to default');
+ this.XB = this.YB = this.ZB = 0;
+ }
+
+ if (this.XB !== 0 || this.YB !== 0 || this.ZB !== 0) {
+ warn(this.name + ', BlackPoint: XB: ' + this.XB + ', YB: ' + this.YB +
+ ', ZB: ' + this.ZB + ', only default values are supported.');
+ }
+
+ if (this.G < 1) {
+ info('Invalid Gamma: ' + this.G + ' for ' + this.name +
+ ', falling back to default');
+ this.G = 1;
+ }
+ }
+
+ function convertToRgb(cs, src, srcOffset, dest, destOffset, scale) {
+ // A represents a gray component of a calibrated gray space.
+ // A <---> AG in the spec
+ var A = src[srcOffset] * scale;
+ var AG = Math.pow(A, cs.G);
+
+ // Computes L as per spec. ( = cs.YW * AG )
+ // Except if other than default BlackPoint values are used.
+ var L = cs.YW * AG;
+ // http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html, Ch 4.
+ // Convert values to rgb range [0, 255].
+ var val = Math.max(295.8 * Math.pow(L, 0.333333333333333333) - 40.8, 0) | 0;
+ dest[destOffset] = val;
+ dest[destOffset + 1] = val;
+ dest[destOffset + 2] = val;
+ }
+
+ CalGrayCS.prototype = {
+ getRgb: ColorSpace.prototype.getRgb,
+ getRgbItem: function CalGrayCS_getRgbItem(src, srcOffset,
+ dest, destOffset) {
+ convertToRgb(this, src, srcOffset, dest, destOffset, 1);
+ },
+ getRgbBuffer: function CalGrayCS_getRgbBuffer(src, srcOffset, count,
+ dest, destOffset, bits,
+ alpha01) {
+ var scale = 1 / ((1 << bits) - 1);
+
+ for (var i = 0; i < count; ++i) {
+ convertToRgb(this, src, srcOffset, dest, destOffset, scale);
+ srcOffset += 1;
+ destOffset += 3 + alpha01;
+ }
+ },
+ getOutputLength: function CalGrayCS_getOutputLength(inputLength, alpha01) {
+ return inputLength * (3 + alpha01);
+ },
+ isPassthrough: ColorSpace.prototype.isPassthrough,
+ fillRgb: ColorSpace.prototype.fillRgb,
+ isDefaultDecode: function CalGrayCS_isDefaultDecode(decodeMap) {
+ return ColorSpace.isDefaultDecode(decodeMap, this.numComps);
+ },
+ usesZeroToOneRange: true
+ };
+ return CalGrayCS;
+})();
+
+//
+// CalRGBCS: Based on "PDF Reference, Sixth Ed", p.247
+//
+var CalRGBCS = (function CalRGBCSClosure() {
+
+ // See http://www.brucelindbloom.com/index.html?Eqn_ChromAdapt.html for these
+ // matrices.
+ var BRADFORD_SCALE_MATRIX = new Float32Array([
+ 0.8951, 0.2664, -0.1614,
+ -0.7502, 1.7135, 0.0367,
+ 0.0389, -0.0685, 1.0296]);
+
+ var BRADFORD_SCALE_INVERSE_MATRIX = new Float32Array([
+ 0.9869929, -0.1470543, 0.1599627,
+ 0.4323053, 0.5183603, 0.0492912,
+ -0.0085287, 0.0400428, 0.9684867]);
+
+ // See http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html.
+ var SRGB_D65_XYZ_TO_RGB_MATRIX = new Float32Array([
+ 3.2404542, -1.5371385, -0.4985314,
+ -0.9692660, 1.8760108, 0.0415560,
+ 0.0556434, -0.2040259, 1.0572252]);
+
+ var FLAT_WHITEPOINT_MATRIX = new Float32Array([1, 1, 1]);
+
+ var tempNormalizeMatrix = new Float32Array(3);
+ var tempConvertMatrix1 = new Float32Array(3);
+ var tempConvertMatrix2 = new Float32Array(3);
+
+ var DECODE_L_CONSTANT = Math.pow(((8 + 16) / 116), 3) / 8.0;
+
+ function CalRGBCS(whitePoint, blackPoint, gamma, matrix) {
+ this.name = 'CalRGB';
+ this.numComps = 3;
+ this.defaultColor = new Float32Array(3);
+
+ if (!whitePoint) {
+ error('WhitePoint missing - required for color space CalRGB');
+ }
+ blackPoint = blackPoint || new Float32Array(3);
+ gamma = gamma || new Float32Array([1, 1, 1]);
+ matrix = matrix || new Float32Array([1, 0, 0, 0, 1, 0, 0, 0, 1]);
+
+ // Translate arguments to spec variables.
+ var XW = whitePoint[0];
+ var YW = whitePoint[1];
+ var ZW = whitePoint[2];
+ this.whitePoint = whitePoint;
+
+ var XB = blackPoint[0];
+ var YB = blackPoint[1];
+ var ZB = blackPoint[2];
+ this.blackPoint = blackPoint;
+
+ this.GR = gamma[0];
+ this.GG = gamma[1];
+ this.GB = gamma[2];
+
+ this.MXA = matrix[0];
+ this.MYA = matrix[1];
+ this.MZA = matrix[2];
+ this.MXB = matrix[3];
+ this.MYB = matrix[4];
+ this.MZB = matrix[5];
+ this.MXC = matrix[6];
+ this.MYC = matrix[7];
+ this.MZC = matrix[8];
+
+ // Validate variables as per spec.
+ if (XW < 0 || ZW < 0 || YW !== 1) {
+ error('Invalid WhitePoint components for ' + this.name +
+ ', no fallback available');
+ }
+
+ if (XB < 0 || YB < 0 || ZB < 0) {
+ info('Invalid BlackPoint for ' + this.name + ' [' + XB + ', ' + YB +
+ ', ' + ZB + '], falling back to default');
+ this.blackPoint = new Float32Array(3);
+ }
+
+ if (this.GR < 0 || this.GG < 0 || this.GB < 0) {
+ info('Invalid Gamma [' + this.GR + ', ' + this.GG + ', ' + this.GB +
+ '] for ' + this.name + ', falling back to default');
+ this.GR = this.GG = this.GB = 1;
+ }
+
+ if (this.MXA < 0 || this.MYA < 0 || this.MZA < 0 ||
+ this.MXB < 0 || this.MYB < 0 || this.MZB < 0 ||
+ this.MXC < 0 || this.MYC < 0 || this.MZC < 0) {
+ info('Invalid Matrix for ' + this.name + ' [' +
+ this.MXA + ', ' + this.MYA + ', ' + this.MZA +
+ this.MXB + ', ' + this.MYB + ', ' + this.MZB +
+ this.MXC + ', ' + this.MYC + ', ' + this.MZC +
+ '], falling back to default');
+ this.MXA = this.MYB = this.MZC = 1;
+ this.MXB = this.MYA = this.MZA = this.MXC = this.MYC = this.MZB = 0;
+ }
+ }
+
+ function matrixProduct(a, b, result) {
+ result[0] = a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
+ result[1] = a[3] * b[0] + a[4] * b[1] + a[5] * b[2];
+ result[2] = a[6] * b[0] + a[7] * b[1] + a[8] * b[2];
+ }
+
+ function convertToFlat(sourceWhitePoint, LMS, result) {
+ result[0] = LMS[0] * 1 / sourceWhitePoint[0];
+ result[1] = LMS[1] * 1 / sourceWhitePoint[1];
+ result[2] = LMS[2] * 1 / sourceWhitePoint[2];
+ }
+
+ function convertToD65(sourceWhitePoint, LMS, result) {
+ var D65X = 0.95047;
+ var D65Y = 1;
+ var D65Z = 1.08883;
+
+ result[0] = LMS[0] * D65X / sourceWhitePoint[0];
+ result[1] = LMS[1] * D65Y / sourceWhitePoint[1];
+ result[2] = LMS[2] * D65Z / sourceWhitePoint[2];
+ }
+
+ function sRGBTransferFunction(color) {
+ // See http://en.wikipedia.org/wiki/SRGB.
+ if (color <= 0.0031308){
+ return adjustToRange(0, 1, 12.92 * color);
+ }
+
+ return adjustToRange(0, 1, (1 + 0.055) * Math.pow(color, 1 / 2.4) - 0.055);
+ }
+
+ function adjustToRange(min, max, value) {
+ return Math.max(min, Math.min(max, value));
+ }
+
+ function decodeL(L) {
+ if (L < 0) {
+ return -decodeL(-L);
+ }
+
+ if (L > 8.0) {
+ return Math.pow(((L + 16) / 116), 3);
+ }
+
+ return L * DECODE_L_CONSTANT;
+ }
+
+ function compensateBlackPoint(sourceBlackPoint, XYZ_Flat, result) {
+
+ // In case the blackPoint is already the default blackPoint then there is
+ // no need to do compensation.
+ if (sourceBlackPoint[0] === 0 &&
+ sourceBlackPoint[1] === 0 &&
+ sourceBlackPoint[2] === 0) {
+ result[0] = XYZ_Flat[0];
+ result[1] = XYZ_Flat[1];
+ result[2] = XYZ_Flat[2];
+ return;
+ }
+
+ // For the blackPoint calculation details, please see
+ // http://www.adobe.com/content/dam/Adobe/en/devnet/photoshop/sdk/
+ // AdobeBPC.pdf.
+ // The destination blackPoint is the default blackPoint [0, 0, 0].
+ var zeroDecodeL = decodeL(0);
+
+ var X_DST = zeroDecodeL;
+ var X_SRC = decodeL(sourceBlackPoint[0]);
+
+ var Y_DST = zeroDecodeL;
+ var Y_SRC = decodeL(sourceBlackPoint[1]);
+
+ var Z_DST = zeroDecodeL;
+ var Z_SRC = decodeL(sourceBlackPoint[2]);
+
+ var X_Scale = (1 - X_DST) / (1 - X_SRC);
+ var X_Offset = 1 - X_Scale;
+
+ var Y_Scale = (1 - Y_DST) / (1 - Y_SRC);
+ var Y_Offset = 1 - Y_Scale;
+
+ var Z_Scale = (1 - Z_DST) / (1 - Z_SRC);
+ var Z_Offset = 1 - Z_Scale;
+
+ result[0] = XYZ_Flat[0] * X_Scale + X_Offset;
+ result[1] = XYZ_Flat[1] * Y_Scale + Y_Offset;
+ result[2] = XYZ_Flat[2] * Z_Scale + Z_Offset;
+ }
+
+ function normalizeWhitePointToFlat(sourceWhitePoint, XYZ_In, result) {
+
+ // In case the whitePoint is already flat then there is no need to do
+ // normalization.
+ if (sourceWhitePoint[0] === 1 && sourceWhitePoint[2] === 1) {
+ result[0] = XYZ_In[0];
+ result[1] = XYZ_In[1];
+ result[2] = XYZ_In[2];
+ return;
+ }
+
+ var LMS = result;
+ matrixProduct(BRADFORD_SCALE_MATRIX, XYZ_In, LMS);
+
+ var LMS_Flat = tempNormalizeMatrix;
+ convertToFlat(sourceWhitePoint, LMS, LMS_Flat);
+
+ matrixProduct(BRADFORD_SCALE_INVERSE_MATRIX, LMS_Flat, result);
+ }
+
+ function normalizeWhitePointToD65(sourceWhitePoint, XYZ_In, result) {
+
+ var LMS = result;
+ matrixProduct(BRADFORD_SCALE_MATRIX, XYZ_In, LMS);
+
+ var LMS_D65 = tempNormalizeMatrix;
+ convertToD65(sourceWhitePoint, LMS, LMS_D65);
+
+ matrixProduct(BRADFORD_SCALE_INVERSE_MATRIX, LMS_D65, result);
+ }
+
+ function convertToRgb(cs, src, srcOffset, dest, destOffset, scale) {
+ // A, B and C represent a red, green and blue components of a calibrated
+ // rgb space.
+ var A = adjustToRange(0, 1, src[srcOffset] * scale);
+ var B = adjustToRange(0, 1, src[srcOffset + 1] * scale);
+ var C = adjustToRange(0, 1, src[srcOffset + 2] * scale);
+
+ // A <---> AGR in the spec
+ // B <---> BGG in the spec
+ // C <---> CGB in the spec
+ var AGR = Math.pow(A, cs.GR);
+ var BGG = Math.pow(B, cs.GG);
+ var CGB = Math.pow(C, cs.GB);
+
+ // Computes intermediate variables L, M, N as per spec.
+ // To decode X, Y, Z values map L, M, N directly to them.
+ var X = cs.MXA * AGR + cs.MXB * BGG + cs.MXC * CGB;
+ var Y = cs.MYA * AGR + cs.MYB * BGG + cs.MYC * CGB;
+ var Z = cs.MZA * AGR + cs.MZB * BGG + cs.MZC * CGB;
+
+ // The following calculations are based on this document:
+ // http://www.adobe.com/content/dam/Adobe/en/devnet/photoshop/sdk/
+ // AdobeBPC.pdf.
+ var XYZ = tempConvertMatrix1;
+ XYZ[0] = X;
+ XYZ[1] = Y;
+ XYZ[2] = Z;
+ var XYZ_Flat = tempConvertMatrix2;
+
+ normalizeWhitePointToFlat(cs.whitePoint, XYZ, XYZ_Flat);
+
+ var XYZ_Black = tempConvertMatrix1;
+ compensateBlackPoint(cs.blackPoint, XYZ_Flat, XYZ_Black);
+
+ var XYZ_D65 = tempConvertMatrix2;
+ normalizeWhitePointToD65(FLAT_WHITEPOINT_MATRIX, XYZ_Black, XYZ_D65);
+
+ var SRGB = tempConvertMatrix1;
+ matrixProduct(SRGB_D65_XYZ_TO_RGB_MATRIX, XYZ_D65, SRGB);
+
+ var sR = sRGBTransferFunction(SRGB[0]);
+ var sG = sRGBTransferFunction(SRGB[1]);
+ var sB = sRGBTransferFunction(SRGB[2]);
+
+ // Convert the values to rgb range [0, 255].
+ dest[destOffset] = Math.round(sR * 255);
+ dest[destOffset + 1] = Math.round(sG * 255);
+ dest[destOffset + 2] = Math.round(sB * 255);
+ }
+
+ CalRGBCS.prototype = {
+ getRgb: function CalRGBCS_getRgb(src, srcOffset) {
+ var rgb = new Uint8Array(3);
+ this.getRgbItem(src, srcOffset, rgb, 0);
+ return rgb;
+ },
+ getRgbItem: function CalRGBCS_getRgbItem(src, srcOffset,
+ dest, destOffset) {
+ convertToRgb(this, src, srcOffset, dest, destOffset, 1);
+ },
+ getRgbBuffer: function CalRGBCS_getRgbBuffer(src, srcOffset, count,
+ dest, destOffset, bits,
+ alpha01) {
+ var scale = 1 / ((1 << bits) - 1);
+
+ for (var i = 0; i < count; ++i) {
+ convertToRgb(this, src, srcOffset, dest, destOffset, scale);
+ srcOffset += 3;
+ destOffset += 3 + alpha01;
+ }
+ },
+ getOutputLength: function CalRGBCS_getOutputLength(inputLength, alpha01) {
+ return (inputLength * (3 + alpha01) / 3) | 0;
+ },
+ isPassthrough: ColorSpace.prototype.isPassthrough,
+ fillRgb: ColorSpace.prototype.fillRgb,
+ isDefaultDecode: function CalRGBCS_isDefaultDecode(decodeMap) {
+ return ColorSpace.isDefaultDecode(decodeMap, this.numComps);
+ },
+ usesZeroToOneRange: true
+ };
+ return CalRGBCS;
+})();
+
+//
+// LabCS: Based on "PDF Reference, Sixth Ed", p.250
+//
+var LabCS = (function LabCSClosure() {
+ function LabCS(whitePoint, blackPoint, range) {
+ this.name = 'Lab';
+ this.numComps = 3;
+ this.defaultColor = new Float32Array([0, 0, 0]);
+
+ if (!whitePoint) {
+ error('WhitePoint missing - required for color space Lab');
+ }
+ blackPoint = blackPoint || [0, 0, 0];
+ range = range || [-100, 100, -100, 100];
+
+ // Translate args to spec variables
+ this.XW = whitePoint[0];
+ this.YW = whitePoint[1];
+ this.ZW = whitePoint[2];
+ this.amin = range[0];
+ this.amax = range[1];
+ this.bmin = range[2];
+ this.bmax = range[3];
+
+ // These are here just for completeness - the spec doesn't offer any
+ // formulas that use BlackPoint in Lab
+ this.XB = blackPoint[0];
+ this.YB = blackPoint[1];
+ this.ZB = blackPoint[2];
+
+ // Validate vars as per spec
+ if (this.XW < 0 || this.ZW < 0 || this.YW !== 1) {
+ error('Invalid WhitePoint components, no fallback available');
+ }
+
+ if (this.XB < 0 || this.YB < 0 || this.ZB < 0) {
+ info('Invalid BlackPoint, falling back to default');
+ this.XB = this.YB = this.ZB = 0;
+ }
+
+ if (this.amin > this.amax || this.bmin > this.bmax) {
+ info('Invalid Range, falling back to defaults');
+ this.amin = -100;
+ this.amax = 100;
+ this.bmin = -100;
+ this.bmax = 100;
+ }
+ }
+
+ // Function g(x) from spec
+ function fn_g(x) {
+ if (x >= 6 / 29) {
+ return x * x * x;
+ } else {
+ return (108 / 841) * (x - 4 / 29);
+ }
+ }
+
+ function decode(value, high1, low2, high2) {
+ return low2 + (value) * (high2 - low2) / (high1);
+ }
+
+ // If decoding is needed maxVal should be 2^bits per component - 1.
+ function convertToRgb(cs, src, srcOffset, maxVal, dest, destOffset) {
+ // XXX: Lab input is in the range of [0, 100], [amin, amax], [bmin, bmax]
+ // not the usual [0, 1]. If a command like setFillColor is used the src
+ // values will already be within the correct range. However, if we are
+ // converting an image we have to map the values to the correct range given
+ // above.
+ // Ls,as,bs <---> L*,a*,b* in the spec
+ var Ls = src[srcOffset];
+ var as = src[srcOffset + 1];
+ var bs = src[srcOffset + 2];
+ if (maxVal !== false) {
+ Ls = decode(Ls, maxVal, 0, 100);
+ as = decode(as, maxVal, cs.amin, cs.amax);
+ bs = decode(bs, maxVal, cs.bmin, cs.bmax);
+ }
+
+ // Adjust limits of 'as' and 'bs'
+ as = as > cs.amax ? cs.amax : as < cs.amin ? cs.amin : as;
+ bs = bs > cs.bmax ? cs.bmax : bs < cs.bmin ? cs.bmin : bs;
+
+ // Computes intermediate variables X,Y,Z as per spec
+ var M = (Ls + 16) / 116;
+ var L = M + (as / 500);
+ var N = M - (bs / 200);
+
+ var X = cs.XW * fn_g(L);
+ var Y = cs.YW * fn_g(M);
+ var Z = cs.ZW * fn_g(N);
+
+ var r, g, b;
+ // Using different conversions for D50 and D65 white points,
+ // per http://www.color.org/srgb.pdf
+ if (cs.ZW < 1) {
+ // Assuming D50 (X=0.9642, Y=1.00, Z=0.8249)
+ r = X * 3.1339 + Y * -1.6170 + Z * -0.4906;
+ g = X * -0.9785 + Y * 1.9160 + Z * 0.0333;
+ b = X * 0.0720 + Y * -0.2290 + Z * 1.4057;
+ } else {
+ // Assuming D65 (X=0.9505, Y=1.00, Z=1.0888)
+ r = X * 3.2406 + Y * -1.5372 + Z * -0.4986;
+ g = X * -0.9689 + Y * 1.8758 + Z * 0.0415;
+ b = X * 0.0557 + Y * -0.2040 + Z * 1.0570;
+ }
+ // clamp color values to [0,1] range then convert to [0,255] range.
+ dest[destOffset] = r <= 0 ? 0 : r >= 1 ? 255 : Math.sqrt(r) * 255 | 0;
+ dest[destOffset + 1] = g <= 0 ? 0 : g >= 1 ? 255 : Math.sqrt(g) * 255 | 0;
+ dest[destOffset + 2] = b <= 0 ? 0 : b >= 1 ? 255 : Math.sqrt(b) * 255 | 0;
+ }
+
+ LabCS.prototype = {
+ getRgb: ColorSpace.prototype.getRgb,
+ getRgbItem: function LabCS_getRgbItem(src, srcOffset, dest, destOffset) {
+ convertToRgb(this, src, srcOffset, false, dest, destOffset);
+ },
+ getRgbBuffer: function LabCS_getRgbBuffer(src, srcOffset, count,
+ dest, destOffset, bits,
+ alpha01) {
+ var maxVal = (1 << bits) - 1;
+ for (var i = 0; i < count; i++) {
+ convertToRgb(this, src, srcOffset, maxVal, dest, destOffset);
+ srcOffset += 3;
+ destOffset += 3 + alpha01;
+ }
+ },
+ getOutputLength: function LabCS_getOutputLength(inputLength, alpha01) {
+ return (inputLength * (3 + alpha01) / 3) | 0;
+ },
+ isPassthrough: ColorSpace.prototype.isPassthrough,
+ fillRgb: ColorSpace.prototype.fillRgb,
+ isDefaultDecode: function LabCS_isDefaultDecode(decodeMap) {
+ // XXX: Decoding is handled with the lab conversion because of the strange
+ // ranges that are used.
+ return true;
+ },
+ usesZeroToOneRange: false
+ };
+ return LabCS;
+})();
+
+
+var ARCFourCipher = (function ARCFourCipherClosure() {
+ function ARCFourCipher(key) {
+ this.a = 0;
+ this.b = 0;
+ var s = new Uint8Array(256);
+ var i, j = 0, tmp, keyLength = key.length;
+ for (i = 0; i < 256; ++i) {
+ s[i] = i;
+ }
+ for (i = 0; i < 256; ++i) {
+ tmp = s[i];
+ j = (j + tmp + key[i % keyLength]) & 0xFF;
+ s[i] = s[j];
+ s[j] = tmp;
+ }
+ this.s = s;
+ }
+
+ ARCFourCipher.prototype = {
+ encryptBlock: function ARCFourCipher_encryptBlock(data) {
+ var i, n = data.length, tmp, tmp2;
+ var a = this.a, b = this.b, s = this.s;
+ var output = new Uint8Array(n);
+ for (i = 0; i < n; ++i) {
+ a = (a + 1) & 0xFF;
+ tmp = s[a];
+ b = (b + tmp) & 0xFF;
+ tmp2 = s[b];
+ s[a] = tmp2;
+ s[b] = tmp;
+ output[i] = data[i] ^ s[(tmp + tmp2) & 0xFF];
+ }
+ this.a = a;
+ this.b = b;
+ return output;
+ }
+ };
+ ARCFourCipher.prototype.decryptBlock = ARCFourCipher.prototype.encryptBlock;
+
+ return ARCFourCipher;
+})();
+
+var calculateMD5 = (function calculateMD5Closure() {
+ var r = new Uint8Array([
+ 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22,
+ 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20,
+ 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23,
+ 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21]);
+
+ var k = new Int32Array([
+ -680876936, -389564586, 606105819, -1044525330, -176418897, 1200080426,
+ -1473231341, -45705983, 1770035416, -1958414417, -42063, -1990404162,
+ 1804603682, -40341101, -1502002290, 1236535329, -165796510, -1069501632,
+ 643717713, -373897302, -701558691, 38016083, -660478335, -405537848,
+ 568446438, -1019803690, -187363961, 1163531501, -1444681467, -51403784,
+ 1735328473, -1926607734, -378558, -2022574463, 1839030562, -35309556,
+ -1530992060, 1272893353, -155497632, -1094730640, 681279174, -358537222,
+ -722521979, 76029189, -640364487, -421815835, 530742520, -995338651,
+ -198630844, 1126891415, -1416354905, -57434055, 1700485571, -1894986606,
+ -1051523, -2054922799, 1873313359, -30611744, -1560198380, 1309151649,
+ -145523070, -1120210379, 718787259, -343485551]);
+
+ function hash(data, offset, length) {
+ var h0 = 1732584193, h1 = -271733879, h2 = -1732584194, h3 = 271733878;
+ // pre-processing
+ var paddedLength = (length + 72) & ~63; // data + 9 extra bytes
+ var padded = new Uint8Array(paddedLength);
+ var i, j, n;
+ for (i = 0; i < length; ++i) {
+ padded[i] = data[offset++];
+ }
+ padded[i++] = 0x80;
+ n = paddedLength - 8;
+ while (i < n) {
+ padded[i++] = 0;
+ }
+ padded[i++] = (length << 3) & 0xFF;
+ padded[i++] = (length >> 5) & 0xFF;
+ padded[i++] = (length >> 13) & 0xFF;
+ padded[i++] = (length >> 21) & 0xFF;
+ padded[i++] = (length >>> 29) & 0xFF;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ var w = new Int32Array(16);
+ for (i = 0; i < paddedLength;) {
+ for (j = 0; j < 16; ++j, i += 4) {
+ w[j] = (padded[i] | (padded[i + 1] << 8) |
+ (padded[i + 2] << 16) | (padded[i + 3] << 24));
+ }
+ var a = h0, b = h1, c = h2, d = h3, f, g;
+ for (j = 0; j < 64; ++j) {
+ if (j < 16) {
+ f = (b & c) | ((~b) & d);
+ g = j;
+ } else if (j < 32) {
+ f = (d & b) | ((~d) & c);
+ g = (5 * j + 1) & 15;
+ } else if (j < 48) {
+ f = b ^ c ^ d;
+ g = (3 * j + 5) & 15;
+ } else {
+ f = c ^ (b | (~d));
+ g = (7 * j) & 15;
+ }
+ var tmp = d, rotateArg = (a + f + k[j] + w[g]) | 0, rotate = r[j];
+ d = c;
+ c = b;
+ b = (b + ((rotateArg << rotate) | (rotateArg >>> (32 - rotate)))) | 0;
+ a = tmp;
+ }
+ h0 = (h0 + a) | 0;
+ h1 = (h1 + b) | 0;
+ h2 = (h2 + c) | 0;
+ h3 = (h3 + d) | 0;
+ }
+ return new Uint8Array([
+ h0 & 0xFF, (h0 >> 8) & 0xFF, (h0 >> 16) & 0xFF, (h0 >>> 24) & 0xFF,
+ h1 & 0xFF, (h1 >> 8) & 0xFF, (h1 >> 16) & 0xFF, (h1 >>> 24) & 0xFF,
+ h2 & 0xFF, (h2 >> 8) & 0xFF, (h2 >> 16) & 0xFF, (h2 >>> 24) & 0xFF,
+ h3 & 0xFF, (h3 >> 8) & 0xFF, (h3 >> 16) & 0xFF, (h3 >>> 24) & 0xFF
+ ]);
+ }
+
+ return hash;
+})();
+var Word64 = (function Word64Closure() {
+ function Word64(highInteger, lowInteger) {
+ this.high = highInteger | 0;
+ this.low = lowInteger | 0;
+ }
+ Word64.prototype = {
+ and: function Word64_and(word) {
+ this.high &= word.high;
+ this.low &= word.low;
+ },
+ xor: function Word64_xor(word) {
+ this.high ^= word.high;
+ this.low ^= word.low;
+ },
+
+ or: function Word64_or(word) {
+ this.high |= word.high;
+ this.low |= word.low;
+ },
+
+ shiftRight: function Word64_shiftRight(places) {
+ if (places >= 32) {
+ this.low = (this.high >>> (places - 32)) | 0;
+ this.high = 0;
+ } else {
+ this.low = (this.low >>> places) | (this.high << (32 - places));
+ this.high = (this.high >>> places) | 0;
+ }
+ },
+
+ shiftLeft: function Word64_shiftLeft(places) {
+ if (places >= 32) {
+ this.high = this.low << (places - 32);
+ this.low = 0;
+ } else {
+ this.high = (this.high << places) | (this.low >>> (32 - places));
+ this.low = this.low << places;
+ }
+ },
+
+ rotateRight: function Word64_rotateRight(places) {
+ var low, high;
+ if (places & 32) {
+ high = this.low;
+ low = this.high;
+ } else {
+ low = this.low;
+ high = this.high;
+ }
+ places &= 31;
+ this.low = (low >>> places) | (high << (32 - places));
+ this.high = (high >>> places) | (low << (32 - places));
+ },
+
+ not: function Word64_not() {
+ this.high = ~this.high;
+ this.low = ~this.low;
+ },
+
+ add: function Word64_add(word) {
+ var lowAdd = (this.low >>> 0) + (word.low >>> 0);
+ var highAdd = (this.high >>> 0) + (word.high >>> 0);
+ if (lowAdd > 0xFFFFFFFF) {
+ highAdd += 1;
+ }
+ this.low = lowAdd | 0;
+ this.high = highAdd | 0;
+ },
+
+ copyTo: function Word64_copyTo(bytes, offset) {
+ bytes[offset] = (this.high >>> 24) & 0xFF;
+ bytes[offset + 1] = (this.high >> 16) & 0xFF;
+ bytes[offset + 2] = (this.high >> 8) & 0xFF;
+ bytes[offset + 3] = this.high & 0xFF;
+ bytes[offset + 4] = (this.low >>> 24) & 0xFF;
+ bytes[offset + 5] = (this.low >> 16) & 0xFF;
+ bytes[offset + 6] = (this.low >> 8) & 0xFF;
+ bytes[offset + 7] = this.low & 0xFF;
+ },
+
+ assign: function Word64_assign(word) {
+ this.high = word.high;
+ this.low = word.low;
+ }
+ };
+ return Word64;
+})();
+
+var calculateSHA256 = (function calculateSHA256Closure() {
+ function rotr(x, n) {
+ return (x >>> n) | (x << 32 - n);
+ }
+
+ function ch(x, y, z) {
+ return (x & y) ^ (~x & z);
+ }
+
+ function maj(x, y, z) {
+ return (x & y) ^ (x & z) ^ (y & z);
+ }
+
+ function sigma(x) {
+ return rotr(x, 2) ^ rotr(x, 13) ^ rotr(x, 22);
+ }
+
+ function sigmaPrime(x) {
+ return rotr(x, 6) ^ rotr(x, 11) ^ rotr(x, 25);
+ }
+
+ function littleSigma(x) {
+ return rotr(x, 7) ^ rotr(x, 18) ^ x >>> 3;
+ }
+
+ function littleSigmaPrime(x) {
+ return rotr(x, 17) ^ rotr(x, 19) ^ x >>> 10;
+ }
+
+ var k = [0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
+ 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+ 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+ 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+ 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
+ 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+ 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
+ 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+ 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+ 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+ 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
+ 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+ 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
+ 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+ 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+ 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2];
+
+ function hash(data, offset, length) {
+ // initial hash values
+ var h0 = 0x6a09e667, h1 = 0xbb67ae85, h2 = 0x3c6ef372,
+ h3 = 0xa54ff53a, h4 = 0x510e527f, h5 = 0x9b05688c,
+ h6 = 0x1f83d9ab, h7 = 0x5be0cd19;
+ // pre-processing
+ var paddedLength = Math.ceil((length + 9) / 64) * 64;
+ var padded = new Uint8Array(paddedLength);
+ var i, j, n;
+ for (i = 0; i < length; ++i) {
+ padded[i] = data[offset++];
+ }
+ padded[i++] = 0x80;
+ n = paddedLength - 8;
+ while (i < n) {
+ padded[i++] = 0;
+ }
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = (length >>> 29) & 0xFF;
+ padded[i++] = (length >> 21) & 0xFF;
+ padded[i++] = (length >> 13) & 0xFF;
+ padded[i++] = (length >> 5) & 0xFF;
+ padded[i++] = (length << 3) & 0xFF;
+ var w = new Uint32Array(64);
+ // for each 512 bit block
+ for (i = 0; i < paddedLength;) {
+ for (j = 0; j < 16; ++j) {
+ w[j] = (padded[i] << 24 | (padded[i + 1] << 16) |
+ (padded[i + 2] << 8) | (padded[i + 3]));
+ i += 4;
+ }
+
+ for (j = 16; j < 64; ++j) {
+ w[j] = littleSigmaPrime(w[j - 2]) + w[j - 7] +
+ littleSigma(w[j - 15]) + w[j - 16] | 0;
+ }
+ var a = h0, b = h1, c = h2, d = h3, e = h4,
+ f = h5, g = h6, h = h7, t1, t2;
+ for (j = 0; j < 64; ++j) {
+ t1 = h + sigmaPrime(e) + ch(e, f, g) + k[j] + w[j];
+ t2 = sigma(a) + maj(a, b, c);
+ h = g;
+ g = f;
+ f = e;
+ e = (d + t1) | 0;
+ d = c;
+ c = b;
+ b = a;
+ a = (t1 + t2) | 0;
+ }
+ h0 = (h0 + a) | 0;
+ h1 = (h1 + b) | 0;
+ h2 = (h2 + c) | 0;
+ h3 = (h3 + d) | 0;
+ h4 = (h4 + e) | 0;
+ h5 = (h5 + f) | 0;
+ h6 = (h6 + g) | 0;
+ h7 = (h7 + h) | 0;
+ }
+ return new Uint8Array([
+ (h0 >> 24) & 0xFF, (h0 >> 16) & 0xFF, (h0 >> 8) & 0xFF, (h0) & 0xFF,
+ (h1 >> 24) & 0xFF, (h1 >> 16) & 0xFF, (h1 >> 8) & 0xFF, (h1) & 0xFF,
+ (h2 >> 24) & 0xFF, (h2 >> 16) & 0xFF, (h2 >> 8) & 0xFF, (h2) & 0xFF,
+ (h3 >> 24) & 0xFF, (h3 >> 16) & 0xFF, (h3 >> 8) & 0xFF, (h3) & 0xFF,
+ (h4 >> 24) & 0xFF, (h4 >> 16) & 0xFF, (h4 >> 8) & 0xFF, (h4) & 0xFF,
+ (h5 >> 24) & 0xFF, (h5 >> 16) & 0xFF, (h5 >> 8) & 0xFF, (h5) & 0xFF,
+ (h6 >> 24) & 0xFF, (h6 >> 16) & 0xFF, (h6 >> 8) & 0xFF, (h6) & 0xFF,
+ (h7 >> 24) & 0xFF, (h7 >> 16) & 0xFF, (h7 >> 8) & 0xFF, (h7) & 0xFF
+ ]);
+ }
+
+ return hash;
+})();
+
+var calculateSHA512 = (function calculateSHA512Closure() {
+ function ch(result, x, y, z, tmp) {
+ result.assign(x);
+ result.and(y);
+ tmp.assign(x);
+ tmp.not();
+ tmp.and(z);
+ result.xor(tmp);
+ }
+
+ function maj(result, x, y, z, tmp) {
+ result.assign(x);
+ result.and(y);
+ tmp.assign(x);
+ tmp.and(z);
+ result.xor(tmp);
+ tmp.assign(y);
+ tmp.and(z);
+ result.xor(tmp);
+ }
+
+ function sigma(result, x, tmp) {
+ result.assign(x);
+ result.rotateRight(28);
+ tmp.assign(x);
+ tmp.rotateRight(34);
+ result.xor(tmp);
+ tmp.assign(x);
+ tmp.rotateRight(39);
+ result.xor(tmp);
+ }
+
+ function sigmaPrime(result, x, tmp) {
+ result.assign(x);
+ result.rotateRight(14);
+ tmp.assign(x);
+ tmp.rotateRight(18);
+ result.xor(tmp);
+ tmp.assign(x);
+ tmp.rotateRight(41);
+ result.xor(tmp);
+ }
+
+ function littleSigma(result, x, tmp) {
+ result.assign(x);
+ result.rotateRight(1);
+ tmp.assign(x);
+ tmp.rotateRight(8);
+ result.xor(tmp);
+ tmp.assign(x);
+ tmp.shiftRight(7);
+ result.xor(tmp);
+ }
+
+ function littleSigmaPrime(result, x, tmp) {
+ result.assign(x);
+ result.rotateRight(19);
+ tmp.assign(x);
+ tmp.rotateRight(61);
+ result.xor(tmp);
+ tmp.assign(x);
+ tmp.shiftRight(6);
+ result.xor(tmp);
+ }
+
+ var k = [
+ new Word64(0x428a2f98, 0xd728ae22), new Word64(0x71374491, 0x23ef65cd),
+ new Word64(0xb5c0fbcf, 0xec4d3b2f), new Word64(0xe9b5dba5, 0x8189dbbc),
+ new Word64(0x3956c25b, 0xf348b538), new Word64(0x59f111f1, 0xb605d019),
+ new Word64(0x923f82a4, 0xaf194f9b), new Word64(0xab1c5ed5, 0xda6d8118),
+ new Word64(0xd807aa98, 0xa3030242), new Word64(0x12835b01, 0x45706fbe),
+ new Word64(0x243185be, 0x4ee4b28c), new Word64(0x550c7dc3, 0xd5ffb4e2),
+ new Word64(0x72be5d74, 0xf27b896f), new Word64(0x80deb1fe, 0x3b1696b1),
+ new Word64(0x9bdc06a7, 0x25c71235), new Word64(0xc19bf174, 0xcf692694),
+ new Word64(0xe49b69c1, 0x9ef14ad2), new Word64(0xefbe4786, 0x384f25e3),
+ new Word64(0x0fc19dc6, 0x8b8cd5b5), new Word64(0x240ca1cc, 0x77ac9c65),
+ new Word64(0x2de92c6f, 0x592b0275), new Word64(0x4a7484aa, 0x6ea6e483),
+ new Word64(0x5cb0a9dc, 0xbd41fbd4), new Word64(0x76f988da, 0x831153b5),
+ new Word64(0x983e5152, 0xee66dfab), new Word64(0xa831c66d, 0x2db43210),
+ new Word64(0xb00327c8, 0x98fb213f), new Word64(0xbf597fc7, 0xbeef0ee4),
+ new Word64(0xc6e00bf3, 0x3da88fc2), new Word64(0xd5a79147, 0x930aa725),
+ new Word64(0x06ca6351, 0xe003826f), new Word64(0x14292967, 0x0a0e6e70),
+ new Word64(0x27b70a85, 0x46d22ffc), new Word64(0x2e1b2138, 0x5c26c926),
+ new Word64(0x4d2c6dfc, 0x5ac42aed), new Word64(0x53380d13, 0x9d95b3df),
+ new Word64(0x650a7354, 0x8baf63de), new Word64(0x766a0abb, 0x3c77b2a8),
+ new Word64(0x81c2c92e, 0x47edaee6), new Word64(0x92722c85, 0x1482353b),
+ new Word64(0xa2bfe8a1, 0x4cf10364), new Word64(0xa81a664b, 0xbc423001),
+ new Word64(0xc24b8b70, 0xd0f89791), new Word64(0xc76c51a3, 0x0654be30),
+ new Word64(0xd192e819, 0xd6ef5218), new Word64(0xd6990624, 0x5565a910),
+ new Word64(0xf40e3585, 0x5771202a), new Word64(0x106aa070, 0x32bbd1b8),
+ new Word64(0x19a4c116, 0xb8d2d0c8), new Word64(0x1e376c08, 0x5141ab53),
+ new Word64(0x2748774c, 0xdf8eeb99), new Word64(0x34b0bcb5, 0xe19b48a8),
+ new Word64(0x391c0cb3, 0xc5c95a63), new Word64(0x4ed8aa4a, 0xe3418acb),
+ new Word64(0x5b9cca4f, 0x7763e373), new Word64(0x682e6ff3, 0xd6b2b8a3),
+ new Word64(0x748f82ee, 0x5defb2fc), new Word64(0x78a5636f, 0x43172f60),
+ new Word64(0x84c87814, 0xa1f0ab72), new Word64(0x8cc70208, 0x1a6439ec),
+ new Word64(0x90befffa, 0x23631e28), new Word64(0xa4506ceb, 0xde82bde9),
+ new Word64(0xbef9a3f7, 0xb2c67915), new Word64(0xc67178f2, 0xe372532b),
+ new Word64(0xca273ece, 0xea26619c), new Word64(0xd186b8c7, 0x21c0c207),
+ new Word64(0xeada7dd6, 0xcde0eb1e), new Word64(0xf57d4f7f, 0xee6ed178),
+ new Word64(0x06f067aa, 0x72176fba), new Word64(0x0a637dc5, 0xa2c898a6),
+ new Word64(0x113f9804, 0xbef90dae), new Word64(0x1b710b35, 0x131c471b),
+ new Word64(0x28db77f5, 0x23047d84), new Word64(0x32caab7b, 0x40c72493),
+ new Word64(0x3c9ebe0a, 0x15c9bebc), new Word64(0x431d67c4, 0x9c100d4c),
+ new Word64(0x4cc5d4be, 0xcb3e42b6), new Word64(0x597f299c, 0xfc657e2a),
+ new Word64(0x5fcb6fab, 0x3ad6faec), new Word64(0x6c44198c, 0x4a475817)];
+
+ function hash(data, offset, length, mode384) {
+ mode384 = !!mode384;
+ // initial hash values
+ var h0, h1, h2, h3, h4, h5, h6, h7;
+ if (!mode384) {
+ h0 = new Word64(0x6a09e667, 0xf3bcc908);
+ h1 = new Word64(0xbb67ae85, 0x84caa73b);
+ h2 = new Word64(0x3c6ef372, 0xfe94f82b);
+ h3 = new Word64(0xa54ff53a, 0x5f1d36f1);
+ h4 = new Word64(0x510e527f, 0xade682d1);
+ h5 = new Word64(0x9b05688c, 0x2b3e6c1f);
+ h6 = new Word64(0x1f83d9ab, 0xfb41bd6b);
+ h7 = new Word64(0x5be0cd19, 0x137e2179);
+ }
+ else {
+ // SHA384 is exactly the same
+ // except with different starting values and a trimmed result
+ h0 = new Word64(0xcbbb9d5d, 0xc1059ed8);
+ h1 = new Word64(0x629a292a, 0x367cd507);
+ h2 = new Word64(0x9159015a, 0x3070dd17);
+ h3 = new Word64(0x152fecd8, 0xf70e5939);
+ h4 = new Word64(0x67332667, 0xffc00b31);
+ h5 = new Word64(0x8eb44a87, 0x68581511);
+ h6 = new Word64(0xdb0c2e0d, 0x64f98fa7);
+ h7 = new Word64(0x47b5481d, 0xbefa4fa4);
+ }
+
+ // pre-processing
+ var paddedLength = Math.ceil((length + 17) / 128) * 128;
+ var padded = new Uint8Array(paddedLength);
+ var i, j, n;
+ for (i = 0; i < length; ++i) {
+ padded[i] = data[offset++];
+ }
+ padded[i++] = 0x80;
+ n = paddedLength - 16;
+ while (i < n) {
+ padded[i++] = 0;
+ }
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = 0;
+ padded[i++] = (length >>> 29) & 0xFF;
+ padded[i++] = (length >> 21) & 0xFF;
+ padded[i++] = (length >> 13) & 0xFF;
+ padded[i++] = (length >> 5) & 0xFF;
+ padded[i++] = (length << 3) & 0xFF;
+
+ var w = new Array(80);
+ for (i = 0; i < 80; i++) {
+ w[i] = new Word64(0, 0);
+ }
+ var a = new Word64(0, 0), b = new Word64(0, 0), c = new Word64(0, 0);
+ var d = new Word64(0, 0), e = new Word64(0, 0), f = new Word64(0, 0);
+ var g = new Word64(0, 0), h = new Word64(0, 0);
+ var t1 = new Word64(0, 0), t2 = new Word64(0, 0);
+ var tmp1 = new Word64(0, 0), tmp2 = new Word64(0, 0), tmp3;
+
+ // for each 1024 bit block
+ for (i = 0; i < paddedLength;) {
+ for (j = 0; j < 16; ++j) {
+ w[j].high = (padded[i] << 24) | (padded[i + 1] << 16) |
+ (padded[i + 2] << 8) | (padded[i + 3]);
+ w[j].low = (padded[i + 4]) << 24 | (padded[i + 5]) << 16 |
+ (padded[i + 6]) << 8 | (padded[i + 7]);
+ i += 8;
+ }
+ for (j = 16; j < 80; ++j) {
+ tmp3 = w[j];
+ littleSigmaPrime(tmp3, w[j - 2], tmp2);
+ tmp3.add(w[j - 7]);
+ littleSigma(tmp1, w[j - 15], tmp2);
+ tmp3.add(tmp1);
+ tmp3.add(w[j - 16]);
+ }
+
+ a.assign(h0); b.assign(h1); c.assign(h2); d.assign(h3);
+ e.assign(h4); f.assign(h5); g.assign(h6); h.assign(h7);
+ for (j = 0; j < 80; ++j) {
+ t1.assign(h);
+ sigmaPrime(tmp1, e, tmp2);
+ t1.add(tmp1);
+ ch(tmp1, e, f, g, tmp2);
+ t1.add(tmp1);
+ t1.add(k[j]);
+ t1.add(w[j]);
+
+ sigma(t2, a, tmp2);
+ maj(tmp1, a, b, c, tmp2);
+ t2.add(tmp1);
+
+ tmp3 = h;
+ h = g;
+ g = f;
+ f = e;
+ d.add(t1);
+ e = d;
+ d = c;
+ c = b;
+ b = a;
+ tmp3.assign(t1);
+ tmp3.add(t2);
+ a = tmp3;
+ }
+ h0.add(a);
+ h1.add(b);
+ h2.add(c);
+ h3.add(d);
+ h4.add(e);
+ h5.add(f);
+ h6.add(g);
+ h7.add(h);
+ }
+
+ var result;
+ if (!mode384) {
+ result = new Uint8Array(64);
+ h0.copyTo(result,0);
+ h1.copyTo(result,8);
+ h2.copyTo(result,16);
+ h3.copyTo(result,24);
+ h4.copyTo(result,32);
+ h5.copyTo(result,40);
+ h6.copyTo(result,48);
+ h7.copyTo(result,56);
+ }
+ else {
+ result = new Uint8Array(48);
+ h0.copyTo(result,0);
+ h1.copyTo(result,8);
+ h2.copyTo(result,16);
+ h3.copyTo(result,24);
+ h4.copyTo(result,32);
+ h5.copyTo(result,40);
+ }
+ return result;
+ }
+
+ return hash;
+})();
+var calculateSHA384 = (function calculateSHA384Closure() {
+ function hash(data, offset, length) {
+ return calculateSHA512(data, offset, length, true);
+ }
+
+ return hash;
+})();
+var NullCipher = (function NullCipherClosure() {
+ function NullCipher() {
+ }
+
+ NullCipher.prototype = {
+ decryptBlock: function NullCipher_decryptBlock(data) {
+ return data;
+ }
+ };
+
+ return NullCipher;
+})();
+
+var AES128Cipher = (function AES128CipherClosure() {
+ var rcon = new Uint8Array([
+ 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c,
+ 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a,
+ 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd,
+ 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a,
+ 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
+ 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6,
+ 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72,
+ 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc,
+ 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10,
+ 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e,
+ 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5,
+ 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94,
+ 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02,
+ 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d,
+ 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d,
+ 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f,
+ 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb,
+ 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c,
+ 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a,
+ 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd,
+ 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a,
+ 0x74, 0xe8, 0xcb, 0x8d]);
+
+ var s = new Uint8Array([
+ 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b,
+ 0xfe, 0xd7, 0xab, 0x76, 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0,
+ 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, 0xb7, 0xfd, 0x93, 0x26,
+ 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
+ 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2,
+ 0xeb, 0x27, 0xb2, 0x75, 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0,
+ 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, 0x53, 0xd1, 0x00, 0xed,
+ 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
+ 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f,
+ 0x50, 0x3c, 0x9f, 0xa8, 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5,
+ 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, 0xcd, 0x0c, 0x13, 0xec,
+ 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
+ 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14,
+ 0xde, 0x5e, 0x0b, 0xdb, 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c,
+ 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, 0xe7, 0xc8, 0x37, 0x6d,
+ 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
+ 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f,
+ 0x4b, 0xbd, 0x8b, 0x8a, 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e,
+ 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, 0xe1, 0xf8, 0x98, 0x11,
+ 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
+ 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f,
+ 0xb0, 0x54, 0xbb, 0x16]);
+
+ var inv_s = new Uint8Array([
+ 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e,
+ 0x81, 0xf3, 0xd7, 0xfb, 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87,
+ 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, 0x54, 0x7b, 0x94, 0x32,
+ 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
+ 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49,
+ 0x6d, 0x8b, 0xd1, 0x25, 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16,
+ 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, 0x6c, 0x70, 0x48, 0x50,
+ 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
+ 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05,
+ 0xb8, 0xb3, 0x45, 0x06, 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02,
+ 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, 0x3a, 0x91, 0x11, 0x41,
+ 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
+ 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8,
+ 0x1c, 0x75, 0xdf, 0x6e, 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89,
+ 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, 0xfc, 0x56, 0x3e, 0x4b,
+ 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
+ 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59,
+ 0x27, 0x80, 0xec, 0x5f, 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d,
+ 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, 0xa0, 0xe0, 0x3b, 0x4d,
+ 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
+ 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63,
+ 0x55, 0x21, 0x0c, 0x7d]);
+ var mixCol = new Uint8Array(256);
+ for (var i = 0; i < 256; i++) {
+ if (i < 128) {
+ mixCol[i] = i << 1;
+ } else {
+ mixCol[i] = (i << 1) ^ 0x1b;
+ }
+ }
+ var mix = new Uint32Array([
+ 0x00000000, 0x0e090d0b, 0x1c121a16, 0x121b171d, 0x3824342c, 0x362d3927,
+ 0x24362e3a, 0x2a3f2331, 0x70486858, 0x7e416553, 0x6c5a724e, 0x62537f45,
+ 0x486c5c74, 0x4665517f, 0x547e4662, 0x5a774b69, 0xe090d0b0, 0xee99ddbb,
+ 0xfc82caa6, 0xf28bc7ad, 0xd8b4e49c, 0xd6bde997, 0xc4a6fe8a, 0xcaaff381,
+ 0x90d8b8e8, 0x9ed1b5e3, 0x8ccaa2fe, 0x82c3aff5, 0xa8fc8cc4, 0xa6f581cf,
+ 0xb4ee96d2, 0xbae79bd9, 0xdb3bbb7b, 0xd532b670, 0xc729a16d, 0xc920ac66,
+ 0xe31f8f57, 0xed16825c, 0xff0d9541, 0xf104984a, 0xab73d323, 0xa57ade28,
+ 0xb761c935, 0xb968c43e, 0x9357e70f, 0x9d5eea04, 0x8f45fd19, 0x814cf012,
+ 0x3bab6bcb, 0x35a266c0, 0x27b971dd, 0x29b07cd6, 0x038f5fe7, 0x0d8652ec,
+ 0x1f9d45f1, 0x119448fa, 0x4be30393, 0x45ea0e98, 0x57f11985, 0x59f8148e,
+ 0x73c737bf, 0x7dce3ab4, 0x6fd52da9, 0x61dc20a2, 0xad766df6, 0xa37f60fd,
+ 0xb16477e0, 0xbf6d7aeb, 0x955259da, 0x9b5b54d1, 0x894043cc, 0x87494ec7,
+ 0xdd3e05ae, 0xd33708a5, 0xc12c1fb8, 0xcf2512b3, 0xe51a3182, 0xeb133c89,
+ 0xf9082b94, 0xf701269f, 0x4de6bd46, 0x43efb04d, 0x51f4a750, 0x5ffdaa5b,
+ 0x75c2896a, 0x7bcb8461, 0x69d0937c, 0x67d99e77, 0x3daed51e, 0x33a7d815,
+ 0x21bccf08, 0x2fb5c203, 0x058ae132, 0x0b83ec39, 0x1998fb24, 0x1791f62f,
+ 0x764dd68d, 0x7844db86, 0x6a5fcc9b, 0x6456c190, 0x4e69e2a1, 0x4060efaa,
+ 0x527bf8b7, 0x5c72f5bc, 0x0605bed5, 0x080cb3de, 0x1a17a4c3, 0x141ea9c8,
+ 0x3e218af9, 0x302887f2, 0x223390ef, 0x2c3a9de4, 0x96dd063d, 0x98d40b36,
+ 0x8acf1c2b, 0x84c61120, 0xaef93211, 0xa0f03f1a, 0xb2eb2807, 0xbce2250c,
+ 0xe6956e65, 0xe89c636e, 0xfa877473, 0xf48e7978, 0xdeb15a49, 0xd0b85742,
+ 0xc2a3405f, 0xccaa4d54, 0x41ecdaf7, 0x4fe5d7fc, 0x5dfec0e1, 0x53f7cdea,
+ 0x79c8eedb, 0x77c1e3d0, 0x65daf4cd, 0x6bd3f9c6, 0x31a4b2af, 0x3fadbfa4,
+ 0x2db6a8b9, 0x23bfa5b2, 0x09808683, 0x07898b88, 0x15929c95, 0x1b9b919e,
+ 0xa17c0a47, 0xaf75074c, 0xbd6e1051, 0xb3671d5a, 0x99583e6b, 0x97513360,
+ 0x854a247d, 0x8b432976, 0xd134621f, 0xdf3d6f14, 0xcd267809, 0xc32f7502,
+ 0xe9105633, 0xe7195b38, 0xf5024c25, 0xfb0b412e, 0x9ad7618c, 0x94de6c87,
+ 0x86c57b9a, 0x88cc7691, 0xa2f355a0, 0xacfa58ab, 0xbee14fb6, 0xb0e842bd,
+ 0xea9f09d4, 0xe49604df, 0xf68d13c2, 0xf8841ec9, 0xd2bb3df8, 0xdcb230f3,
+ 0xcea927ee, 0xc0a02ae5, 0x7a47b13c, 0x744ebc37, 0x6655ab2a, 0x685ca621,
+ 0x42638510, 0x4c6a881b, 0x5e719f06, 0x5078920d, 0x0a0fd964, 0x0406d46f,
+ 0x161dc372, 0x1814ce79, 0x322bed48, 0x3c22e043, 0x2e39f75e, 0x2030fa55,
+ 0xec9ab701, 0xe293ba0a, 0xf088ad17, 0xfe81a01c, 0xd4be832d, 0xdab78e26,
+ 0xc8ac993b, 0xc6a59430, 0x9cd2df59, 0x92dbd252, 0x80c0c54f, 0x8ec9c844,
+ 0xa4f6eb75, 0xaaffe67e, 0xb8e4f163, 0xb6edfc68, 0x0c0a67b1, 0x02036aba,
+ 0x10187da7, 0x1e1170ac, 0x342e539d, 0x3a275e96, 0x283c498b, 0x26354480,
+ 0x7c420fe9, 0x724b02e2, 0x605015ff, 0x6e5918f4, 0x44663bc5, 0x4a6f36ce,
+ 0x587421d3, 0x567d2cd8, 0x37a10c7a, 0x39a80171, 0x2bb3166c, 0x25ba1b67,
+ 0x0f853856, 0x018c355d, 0x13972240, 0x1d9e2f4b, 0x47e96422, 0x49e06929,
+ 0x5bfb7e34, 0x55f2733f, 0x7fcd500e, 0x71c45d05, 0x63df4a18, 0x6dd64713,
+ 0xd731dcca, 0xd938d1c1, 0xcb23c6dc, 0xc52acbd7, 0xef15e8e6, 0xe11ce5ed,
+ 0xf307f2f0, 0xfd0efffb, 0xa779b492, 0xa970b999, 0xbb6bae84, 0xb562a38f,
+ 0x9f5d80be, 0x91548db5, 0x834f9aa8, 0x8d4697a3]);
+
+ function expandKey128(cipherKey) {
+ var b = 176, result = new Uint8Array(b);
+ result.set(cipherKey);
+ for (var j = 16, i = 1; j < b; ++i) {
+ // RotWord
+ var t1 = result[j - 3], t2 = result[j - 2],
+ t3 = result[j - 1], t4 = result[j - 4];
+ // SubWord
+ t1 = s[t1];
+ t2 = s[t2];
+ t3 = s[t3];
+ t4 = s[t4];
+ // Rcon
+ t1 = t1 ^ rcon[i];
+ for (var n = 0; n < 4; ++n) {
+ result[j] = (t1 ^= result[j - 16]);
+ j++;
+ result[j] = (t2 ^= result[j - 16]);
+ j++;
+ result[j] = (t3 ^= result[j - 16]);
+ j++;
+ result[j] = (t4 ^= result[j - 16]);
+ j++;
+ }
+ }
+ return result;
+ }
+
+ function decrypt128(input, key) {
+ var state = new Uint8Array(16);
+ state.set(input);
+ var i, j, k;
+ var t, u, v;
+ // AddRoundKey
+ for (j = 0, k = 160; j < 16; ++j, ++k) {
+ state[j] ^= key[k];
+ }
+ for (i = 9; i >= 1; --i) {
+ // InvShiftRows
+ t = state[13];
+ state[13] = state[9];
+ state[9] = state[5];
+ state[5] = state[1];
+ state[1] = t;
+ t = state[14];
+ u = state[10];
+ state[14] = state[6];
+ state[10] = state[2];
+ state[6] = t;
+ state[2] = u;
+ t = state[15];
+ u = state[11];
+ v = state[7];
+ state[15] = state[3];
+ state[11] = t;
+ state[7] = u;
+ state[3] = v;
+ // InvSubBytes
+ for (j = 0; j < 16; ++j) {
+ state[j] = inv_s[state[j]];
+ }
+ // AddRoundKey
+ for (j = 0, k = i * 16; j < 16; ++j, ++k) {
+ state[j] ^= key[k];
+ }
+ // InvMixColumns
+ for (j = 0; j < 16; j += 4) {
+ var s0 = mix[state[j]], s1 = mix[state[j + 1]],
+ s2 = mix[state[j + 2]], s3 = mix[state[j + 3]];
+ t = (s0 ^ (s1 >>> 8) ^ (s1 << 24) ^ (s2 >>> 16) ^ (s2 << 16) ^
+ (s3 >>> 24) ^ (s3 << 8));
+ state[j] = (t >>> 24) & 0xFF;
+ state[j + 1] = (t >> 16) & 0xFF;
+ state[j + 2] = (t >> 8) & 0xFF;
+ state[j + 3] = t & 0xFF;
+ }
+ }
+ // InvShiftRows
+ t = state[13];
+ state[13] = state[9];
+ state[9] = state[5];
+ state[5] = state[1];
+ state[1] = t;
+ t = state[14];
+ u = state[10];
+ state[14] = state[6];
+ state[10] = state[2];
+ state[6] = t;
+ state[2] = u;
+ t = state[15];
+ u = state[11];
+ v = state[7];
+ state[15] = state[3];
+ state[11] = t;
+ state[7] = u;
+ state[3] = v;
+ for (j = 0; j < 16; ++j) {
+ // InvSubBytes
+ state[j] = inv_s[state[j]];
+ // AddRoundKey
+ state[j] ^= key[j];
+ }
+ return state;
+ }
+
+ function encrypt128(input, key) {
+ var t, u, v, k;
+ var state = new Uint8Array(16);
+ state.set(input);
+ for (j = 0; j < 16; ++j) {
+ // AddRoundKey
+ state[j] ^= key[j];
+ }
+
+ for (i = 1; i < 10; i++) {
+ //SubBytes
+ for (j = 0; j < 16; ++j) {
+ state[j] = s[state[j]];
+ }
+ //ShiftRows
+ v = state[1];
+ state[1] = state[5];
+ state[5] = state[9];
+ state[9] = state[13];
+ state[13] = v;
+ v = state[2];
+ u = state[6];
+ state[2] = state[10];
+ state[6] = state[14];
+ state[10] = v;
+ state[14] = u;
+ v = state[3];
+ u = state[7];
+ t = state[11];
+ state[3] = state[15];
+ state[7] = v;
+ state[11] = u;
+ state[15] = t;
+ //MixColumns
+ for (var j = 0; j < 16; j += 4) {
+ var s0 = state[j + 0], s1 = state[j + 1];
+ var s2 = state[j + 2], s3 = state[j + 3];
+ t = s0 ^ s1 ^ s2 ^ s3;
+ state[j + 0] ^= t ^ mixCol[s0 ^ s1];
+ state[j + 1] ^= t ^ mixCol[s1 ^ s2];
+ state[j + 2] ^= t ^ mixCol[s2 ^ s3];
+ state[j + 3] ^= t ^ mixCol[s3 ^ s0];
+ }
+ //AddRoundKey
+ for (j = 0, k = i * 16; j < 16; ++j, ++k) {
+ state[j] ^= key[k];
+ }
+ }
+
+ //SubBytes
+ for (j = 0; j < 16; ++j) {
+ state[j] = s[state[j]];
+ }
+ //ShiftRows
+ v = state[1];
+ state[1] = state[5];
+ state[5] = state[9];
+ state[9] = state[13];
+ state[13] = v;
+ v = state[2];
+ u = state[6];
+ state[2] = state[10];
+ state[6] = state[14];
+ state[10] = v;
+ state[14] = u;
+ v = state[3];
+ u = state[7];
+ t = state[11];
+ state[3] = state[15];
+ state[7] = v;
+ state[11] = u;
+ state[15] = t;
+ //AddRoundKey
+ for (j = 0, k = 160; j < 16; ++j, ++k) {
+ state[j] ^= key[k];
+ }
+ return state;
+ }
+
+ function AES128Cipher(key) {
+ this.key = expandKey128(key);
+ this.buffer = new Uint8Array(16);
+ this.bufferPosition = 0;
+ }
+
+ function decryptBlock2(data, finalize) {
+ var i, j, ii, sourceLength = data.length,
+ buffer = this.buffer, bufferLength = this.bufferPosition,
+ result = [], iv = this.iv;
+ for (i = 0; i < sourceLength; ++i) {
+ buffer[bufferLength] = data[i];
+ ++bufferLength;
+ if (bufferLength < 16) {
+ continue;
+ }
+ // buffer is full, decrypting
+ var plain = decrypt128(buffer, this.key);
+ // xor-ing the IV vector to get plain text
+ for (j = 0; j < 16; ++j) {
+ plain[j] ^= iv[j];
+ }
+ iv = buffer;
+ result.push(plain);
+ buffer = new Uint8Array(16);
+ bufferLength = 0;
+ }
+ // saving incomplete buffer
+ this.buffer = buffer;
+ this.bufferLength = bufferLength;
+ this.iv = iv;
+ if (result.length === 0) {
+ return new Uint8Array([]);
+ }
+ // combining plain text blocks into one
+ var outputLength = 16 * result.length;
+ if (finalize) {
+ // undo a padding that is described in RFC 2898
+ var lastBlock = result[result.length - 1];
+ var psLen = lastBlock[15];
+ if (psLen <= 16) {
+ for (i = 15, ii = 16 - psLen; i >= ii; --i) {
+ if (lastBlock[i] !== psLen) {
+ // Invalid padding, assume that the block has no padding.
+ psLen = 0;
+ break;
+ }
+ }
+ outputLength -= psLen;
+ result[result.length - 1] = lastBlock.subarray(0, 16 - psLen);
+ }
+ }
+ var output = new Uint8Array(outputLength);
+ for (i = 0, j = 0, ii = result.length; i < ii; ++i, j += 16) {
+ output.set(result[i], j);
+ }
+ return output;
+ }
+
+ AES128Cipher.prototype = {
+ decryptBlock: function AES128Cipher_decryptBlock(data, finalize) {
+ var i, sourceLength = data.length;
+ var buffer = this.buffer, bufferLength = this.bufferPosition;
+ // waiting for IV values -- they are at the start of the stream
+ for (i = 0; bufferLength < 16 && i < sourceLength; ++i, ++bufferLength) {
+ buffer[bufferLength] = data[i];
+ }
+ if (bufferLength < 16) {
+ // need more data
+ this.bufferLength = bufferLength;
+ return new Uint8Array([]);
+ }
+ this.iv = buffer;
+ this.buffer = new Uint8Array(16);
+ this.bufferLength = 0;
+ // starting decryption
+ this.decryptBlock = decryptBlock2;
+ return this.decryptBlock(data.subarray(16), finalize);
+ },
+ encrypt: function AES128Cipher_encrypt(data, iv) {
+ var i, j, ii, sourceLength = data.length,
+ buffer = this.buffer, bufferLength = this.bufferPosition,
+ result = [];
+ if (!iv) {
+ iv = new Uint8Array(16);
+ }
+ for (i = 0; i < sourceLength; ++i) {
+ buffer[bufferLength] = data[i];
+ ++bufferLength;
+ if (bufferLength < 16) {
+ continue;
+ }
+ for (j = 0; j < 16; ++j) {
+ buffer[j] ^= iv[j];
+ }
+
+ // buffer is full, encrypting
+ var cipher = encrypt128(buffer, this.key);
+ iv = cipher;
+ result.push(cipher);
+ buffer = new Uint8Array(16);
+ bufferLength = 0;
+ }
+ // saving incomplete buffer
+ this.buffer = buffer;
+ this.bufferLength = bufferLength;
+ this.iv = iv;
+ if (result.length === 0) {
+ return new Uint8Array([]);
+ }
+ // combining plain text blocks into one
+ var outputLength = 16 * result.length;
+ var output = new Uint8Array(outputLength);
+ for (i = 0, j = 0, ii = result.length; i < ii; ++i, j += 16) {
+ output.set(result[i], j);
+ }
+ return output;
+ }
+ };
+
+ return AES128Cipher;
+})();
+
+var AES256Cipher = (function AES256CipherClosure() {
+ var rcon = new Uint8Array([
+ 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c,
+ 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a,
+ 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd,
+ 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a,
+ 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
+ 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6,
+ 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72,
+ 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc,
+ 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10,
+ 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e,
+ 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5,
+ 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94,
+ 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02,
+ 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d,
+ 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d,
+ 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f,
+ 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb,
+ 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c,
+ 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a,
+ 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd,
+ 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a,
+ 0x74, 0xe8, 0xcb, 0x8d]);
+
+ var s = new Uint8Array([
+ 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b,
+ 0xfe, 0xd7, 0xab, 0x76, 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0,
+ 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, 0xb7, 0xfd, 0x93, 0x26,
+ 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
+ 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2,
+ 0xeb, 0x27, 0xb2, 0x75, 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0,
+ 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, 0x53, 0xd1, 0x00, 0xed,
+ 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
+ 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f,
+ 0x50, 0x3c, 0x9f, 0xa8, 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5,
+ 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, 0xcd, 0x0c, 0x13, 0xec,
+ 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
+ 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14,
+ 0xde, 0x5e, 0x0b, 0xdb, 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c,
+ 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, 0xe7, 0xc8, 0x37, 0x6d,
+ 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
+ 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f,
+ 0x4b, 0xbd, 0x8b, 0x8a, 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e,
+ 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, 0xe1, 0xf8, 0x98, 0x11,
+ 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
+ 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f,
+ 0xb0, 0x54, 0xbb, 0x16]);
+
+ var inv_s = new Uint8Array([
+ 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e,
+ 0x81, 0xf3, 0xd7, 0xfb, 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87,
+ 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, 0x54, 0x7b, 0x94, 0x32,
+ 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
+ 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49,
+ 0x6d, 0x8b, 0xd1, 0x25, 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16,
+ 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, 0x6c, 0x70, 0x48, 0x50,
+ 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
+ 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05,
+ 0xb8, 0xb3, 0x45, 0x06, 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02,
+ 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, 0x3a, 0x91, 0x11, 0x41,
+ 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
+ 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8,
+ 0x1c, 0x75, 0xdf, 0x6e, 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89,
+ 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, 0xfc, 0x56, 0x3e, 0x4b,
+ 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
+ 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59,
+ 0x27, 0x80, 0xec, 0x5f, 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d,
+ 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, 0xa0, 0xe0, 0x3b, 0x4d,
+ 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
+ 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63,
+ 0x55, 0x21, 0x0c, 0x7d]);
+
+ var mixCol = new Uint8Array(256);
+ for (var i = 0; i < 256; i++) {
+ if (i < 128) {
+ mixCol[i] = i << 1;
+ } else {
+ mixCol[i] = (i << 1) ^ 0x1b;
+ }
+ }
+ var mix = new Uint32Array([
+ 0x00000000, 0x0e090d0b, 0x1c121a16, 0x121b171d, 0x3824342c, 0x362d3927,
+ 0x24362e3a, 0x2a3f2331, 0x70486858, 0x7e416553, 0x6c5a724e, 0x62537f45,
+ 0x486c5c74, 0x4665517f, 0x547e4662, 0x5a774b69, 0xe090d0b0, 0xee99ddbb,
+ 0xfc82caa6, 0xf28bc7ad, 0xd8b4e49c, 0xd6bde997, 0xc4a6fe8a, 0xcaaff381,
+ 0x90d8b8e8, 0x9ed1b5e3, 0x8ccaa2fe, 0x82c3aff5, 0xa8fc8cc4, 0xa6f581cf,
+ 0xb4ee96d2, 0xbae79bd9, 0xdb3bbb7b, 0xd532b670, 0xc729a16d, 0xc920ac66,
+ 0xe31f8f57, 0xed16825c, 0xff0d9541, 0xf104984a, 0xab73d323, 0xa57ade28,
+ 0xb761c935, 0xb968c43e, 0x9357e70f, 0x9d5eea04, 0x8f45fd19, 0x814cf012,
+ 0x3bab6bcb, 0x35a266c0, 0x27b971dd, 0x29b07cd6, 0x038f5fe7, 0x0d8652ec,
+ 0x1f9d45f1, 0x119448fa, 0x4be30393, 0x45ea0e98, 0x57f11985, 0x59f8148e,
+ 0x73c737bf, 0x7dce3ab4, 0x6fd52da9, 0x61dc20a2, 0xad766df6, 0xa37f60fd,
+ 0xb16477e0, 0xbf6d7aeb, 0x955259da, 0x9b5b54d1, 0x894043cc, 0x87494ec7,
+ 0xdd3e05ae, 0xd33708a5, 0xc12c1fb8, 0xcf2512b3, 0xe51a3182, 0xeb133c89,
+ 0xf9082b94, 0xf701269f, 0x4de6bd46, 0x43efb04d, 0x51f4a750, 0x5ffdaa5b,
+ 0x75c2896a, 0x7bcb8461, 0x69d0937c, 0x67d99e77, 0x3daed51e, 0x33a7d815,
+ 0x21bccf08, 0x2fb5c203, 0x058ae132, 0x0b83ec39, 0x1998fb24, 0x1791f62f,
+ 0x764dd68d, 0x7844db86, 0x6a5fcc9b, 0x6456c190, 0x4e69e2a1, 0x4060efaa,
+ 0x527bf8b7, 0x5c72f5bc, 0x0605bed5, 0x080cb3de, 0x1a17a4c3, 0x141ea9c8,
+ 0x3e218af9, 0x302887f2, 0x223390ef, 0x2c3a9de4, 0x96dd063d, 0x98d40b36,
+ 0x8acf1c2b, 0x84c61120, 0xaef93211, 0xa0f03f1a, 0xb2eb2807, 0xbce2250c,
+ 0xe6956e65, 0xe89c636e, 0xfa877473, 0xf48e7978, 0xdeb15a49, 0xd0b85742,
+ 0xc2a3405f, 0xccaa4d54, 0x41ecdaf7, 0x4fe5d7fc, 0x5dfec0e1, 0x53f7cdea,
+ 0x79c8eedb, 0x77c1e3d0, 0x65daf4cd, 0x6bd3f9c6, 0x31a4b2af, 0x3fadbfa4,
+ 0x2db6a8b9, 0x23bfa5b2, 0x09808683, 0x07898b88, 0x15929c95, 0x1b9b919e,
+ 0xa17c0a47, 0xaf75074c, 0xbd6e1051, 0xb3671d5a, 0x99583e6b, 0x97513360,
+ 0x854a247d, 0x8b432976, 0xd134621f, 0xdf3d6f14, 0xcd267809, 0xc32f7502,
+ 0xe9105633, 0xe7195b38, 0xf5024c25, 0xfb0b412e, 0x9ad7618c, 0x94de6c87,
+ 0x86c57b9a, 0x88cc7691, 0xa2f355a0, 0xacfa58ab, 0xbee14fb6, 0xb0e842bd,
+ 0xea9f09d4, 0xe49604df, 0xf68d13c2, 0xf8841ec9, 0xd2bb3df8, 0xdcb230f3,
+ 0xcea927ee, 0xc0a02ae5, 0x7a47b13c, 0x744ebc37, 0x6655ab2a, 0x685ca621,
+ 0x42638510, 0x4c6a881b, 0x5e719f06, 0x5078920d, 0x0a0fd964, 0x0406d46f,
+ 0x161dc372, 0x1814ce79, 0x322bed48, 0x3c22e043, 0x2e39f75e, 0x2030fa55,
+ 0xec9ab701, 0xe293ba0a, 0xf088ad17, 0xfe81a01c, 0xd4be832d, 0xdab78e26,
+ 0xc8ac993b, 0xc6a59430, 0x9cd2df59, 0x92dbd252, 0x80c0c54f, 0x8ec9c844,
+ 0xa4f6eb75, 0xaaffe67e, 0xb8e4f163, 0xb6edfc68, 0x0c0a67b1, 0x02036aba,
+ 0x10187da7, 0x1e1170ac, 0x342e539d, 0x3a275e96, 0x283c498b, 0x26354480,
+ 0x7c420fe9, 0x724b02e2, 0x605015ff, 0x6e5918f4, 0x44663bc5, 0x4a6f36ce,
+ 0x587421d3, 0x567d2cd8, 0x37a10c7a, 0x39a80171, 0x2bb3166c, 0x25ba1b67,
+ 0x0f853856, 0x018c355d, 0x13972240, 0x1d9e2f4b, 0x47e96422, 0x49e06929,
+ 0x5bfb7e34, 0x55f2733f, 0x7fcd500e, 0x71c45d05, 0x63df4a18, 0x6dd64713,
+ 0xd731dcca, 0xd938d1c1, 0xcb23c6dc, 0xc52acbd7, 0xef15e8e6, 0xe11ce5ed,
+ 0xf307f2f0, 0xfd0efffb, 0xa779b492, 0xa970b999, 0xbb6bae84, 0xb562a38f,
+ 0x9f5d80be, 0x91548db5, 0x834f9aa8, 0x8d4697a3]);
+
+ function expandKey256(cipherKey) {
+ var b = 240, result = new Uint8Array(b);
+ var r = 1;
+
+ result.set(cipherKey);
+ for (var j = 32, i = 1; j < b; ++i) {
+ if (j % 32 === 16) {
+ t1 = s[t1];
+ t2 = s[t2];
+ t3 = s[t3];
+ t4 = s[t4];
+ } else if (j % 32 === 0) {
+ // RotWord
+ var t1 = result[j - 3], t2 = result[j - 2],
+ t3 = result[j - 1], t4 = result[j - 4];
+ // SubWord
+ t1 = s[t1];
+ t2 = s[t2];
+ t3 = s[t3];
+ t4 = s[t4];
+ // Rcon
+ t1 = t1 ^ r;
+ if ((r <<= 1) >= 256) {
+ r = (r ^ 0x1b) & 0xFF;
+ }
+ }
+
+ for (var n = 0; n < 4; ++n) {
+ result[j] = (t1 ^= result[j - 32]);
+ j++;
+ result[j] = (t2 ^= result[j - 32]);
+ j++;
+ result[j] = (t3 ^= result[j - 32]);
+ j++;
+ result[j] = (t4 ^= result[j - 32]);
+ j++;
+ }
+ }
+ return result;
+ }
+
+ function decrypt256(input, key) {
+ var state = new Uint8Array(16);
+ state.set(input);
+ var i, j, k;
+ var t, u, v;
+ // AddRoundKey
+ for (j = 0, k = 224; j < 16; ++j, ++k) {
+ state[j] ^= key[k];
+ }
+ for (i = 13; i >= 1; --i) {
+ // InvShiftRows
+ t = state[13];
+ state[13] = state[9];
+ state[9] = state[5];
+ state[5] = state[1];
+ state[1] = t;
+ t = state[14];
+ u = state[10];
+ state[14] = state[6];
+ state[10] = state[2];
+ state[6] = t;
+ state[2] = u;
+ t = state[15];
+ u = state[11];
+ v = state[7];
+ state[15] = state[3];
+ state[11] = t;
+ state[7] = u;
+ state[3] = v;
+ // InvSubBytes
+ for (j = 0; j < 16; ++j) {
+ state[j] = inv_s[state[j]];
+ }
+ // AddRoundKey
+ for (j = 0, k = i * 16; j < 16; ++j, ++k) {
+ state[j] ^= key[k];
+ }
+ // InvMixColumns
+ for (j = 0; j < 16; j += 4) {
+ var s0 = mix[state[j]], s1 = mix[state[j + 1]],
+ s2 = mix[state[j + 2]], s3 = mix[state[j + 3]];
+ t = (s0 ^ (s1 >>> 8) ^ (s1 << 24) ^ (s2 >>> 16) ^ (s2 << 16) ^
+ (s3 >>> 24) ^ (s3 << 8));
+ state[j] = (t >>> 24) & 0xFF;
+ state[j + 1] = (t >> 16) & 0xFF;
+ state[j + 2] = (t >> 8) & 0xFF;
+ state[j + 3] = t & 0xFF;
+ }
+ }
+ // InvShiftRows
+ t = state[13];
+ state[13] = state[9];
+ state[9] = state[5];
+ state[5] = state[1];
+ state[1] = t;
+ t = state[14];
+ u = state[10];
+ state[14] = state[6];
+ state[10] = state[2];
+ state[6] = t;
+ state[2] = u;
+ t = state[15];
+ u = state[11];
+ v = state[7];
+ state[15] = state[3];
+ state[11] = t;
+ state[7] = u;
+ state[3] = v;
+ for (j = 0; j < 16; ++j) {
+ // InvSubBytes
+ state[j] = inv_s[state[j]];
+ // AddRoundKey
+ state[j] ^= key[j];
+ }
+ return state;
+ }
+
+ function encrypt256(input, key) {
+ var t, u, v, k;
+ var state = new Uint8Array(16);
+ state.set(input);
+ for (j = 0; j < 16; ++j) {
+ // AddRoundKey
+ state[j] ^= key[j];
+ }
+
+ for (i = 1; i < 14; i++) {
+ //SubBytes
+ for (j = 0; j < 16; ++j) {
+ state[j] = s[state[j]];
+ }
+ //ShiftRows
+ v = state[1];
+ state[1] = state[5];
+ state[5] = state[9];
+ state[9] = state[13];
+ state[13] = v;
+ v = state[2];
+ u = state[6];
+ state[2] = state[10];
+ state[6] = state[14];
+ state[10] = v;
+ state[14] = u;
+ v = state[3];
+ u = state[7];
+ t = state[11];
+ state[3] = state[15];
+ state[7] = v;
+ state[11] = u;
+ state[15] = t;
+ //MixColumns
+ for (var j = 0; j < 16; j += 4) {
+ var s0 = state[j + 0], s1 = state[j + 1];
+ var s2 = state[j + 2], s3 = state[j + 3];
+ t = s0 ^ s1 ^ s2 ^ s3;
+ state[j + 0] ^= t ^ mixCol[s0 ^ s1];
+ state[j + 1] ^= t ^ mixCol[s1 ^ s2];
+ state[j + 2] ^= t ^ mixCol[s2 ^ s3];
+ state[j + 3] ^= t ^ mixCol[s3 ^ s0];
+ }
+ //AddRoundKey
+ for (j = 0, k = i * 16; j < 16; ++j, ++k) {
+ state[j] ^= key[k];
+ }
+ }
+
+ //SubBytes
+ for (j = 0; j < 16; ++j) {
+ state[j] = s[state[j]];
+ }
+ //ShiftRows
+ v = state[1];
+ state[1] = state[5];
+ state[5] = state[9];
+ state[9] = state[13];
+ state[13] = v;
+ v = state[2];
+ u = state[6];
+ state[2] = state[10];
+ state[6] = state[14];
+ state[10] = v;
+ state[14] = u;
+ v = state[3];
+ u = state[7];
+ t = state[11];
+ state[3] = state[15];
+ state[7] = v;
+ state[11] = u;
+ state[15] = t;
+ //AddRoundKey
+ for (j = 0, k = 224; j < 16; ++j, ++k) {
+ state[j] ^= key[k];
+ }
+
+ return state;
+
+ }
+
+ function AES256Cipher(key) {
+ this.key = expandKey256(key);
+ this.buffer = new Uint8Array(16);
+ this.bufferPosition = 0;
+ }
+
+ function decryptBlock2(data, finalize) {
+ var i, j, ii, sourceLength = data.length,
+ buffer = this.buffer, bufferLength = this.bufferPosition,
+ result = [], iv = this.iv;
+
+ for (i = 0; i < sourceLength; ++i) {
+ buffer[bufferLength] = data[i];
+ ++bufferLength;
+ if (bufferLength < 16) {
+ continue;
+ }
+ // buffer is full, decrypting
+ var plain = decrypt256(buffer, this.key);
+ // xor-ing the IV vector to get plain text
+ for (j = 0; j < 16; ++j) {
+ plain[j] ^= iv[j];
+ }
+ iv = buffer;
+ result.push(plain);
+ buffer = new Uint8Array(16);
+ bufferLength = 0;
+ }
+ // saving incomplete buffer
+ this.buffer = buffer;
+ this.bufferLength = bufferLength;
+ this.iv = iv;
+ if (result.length === 0) {
+ return new Uint8Array([]);
+ }
+ // combining plain text blocks into one
+ var outputLength = 16 * result.length;
+ if (finalize) {
+ // undo a padding that is described in RFC 2898
+ var lastBlock = result[result.length - 1];
+ var psLen = lastBlock[15];
+ if (psLen <= 16) {
+ for (i = 15, ii = 16 - psLen; i >= ii; --i) {
+ if (lastBlock[i] !== psLen) {
+ // Invalid padding, assume that the block has no padding.
+ psLen = 0;
+ break;
+ }
+ }
+ outputLength -= psLen;
+ result[result.length - 1] = lastBlock.subarray(0, 16 - psLen);
+ }
+ }
+ var output = new Uint8Array(outputLength);
+ for (i = 0, j = 0, ii = result.length; i < ii; ++i, j += 16) {
+ output.set(result[i], j);
+ }
+ return output;
+
+ }
+
+ AES256Cipher.prototype = {
+ decryptBlock: function AES256Cipher_decryptBlock(data, finalize, iv) {
+ var i, sourceLength = data.length;
+ var buffer = this.buffer, bufferLength = this.bufferPosition;
+ // if not supplied an IV wait for IV values
+ // they are at the start of the stream
+ if (iv) {
+ this.iv = iv;
+ } else {
+ for (i = 0; bufferLength < 16 &&
+ i < sourceLength; ++i, ++bufferLength) {
+ buffer[bufferLength] = data[i];
+ }
+ if (bufferLength < 16) {
+ //need more data
+ this.bufferLength = bufferLength;
+ return new Uint8Array([]);
+ }
+ this.iv = buffer;
+ data = data.subarray(16);
+ }
+ this.buffer = new Uint8Array(16);
+ this.bufferLength = 0;
+ // starting decryption
+ this.decryptBlock = decryptBlock2;
+ return this.decryptBlock(data, finalize);
+ },
+ encrypt: function AES256Cipher_encrypt(data, iv) {
+ var i, j, ii, sourceLength = data.length,
+ buffer = this.buffer, bufferLength = this.bufferPosition,
+ result = [];
+ if (!iv) {
+ iv = new Uint8Array(16);
+ }
+ for (i = 0; i < sourceLength; ++i) {
+ buffer[bufferLength] = data[i];
+ ++bufferLength;
+ if (bufferLength < 16) {
+ continue;
+ }
+ for (j = 0; j < 16; ++j) {
+ buffer[j] ^= iv[j];
+ }
+
+ // buffer is full, encrypting
+ var cipher = encrypt256(buffer, this.key);
+ this.iv = cipher;
+ result.push(cipher);
+ buffer = new Uint8Array(16);
+ bufferLength = 0;
+ }
+ // saving incomplete buffer
+ this.buffer = buffer;
+ this.bufferLength = bufferLength;
+ this.iv = iv;
+ if (result.length === 0) {
+ return new Uint8Array([]);
+ }
+ // combining plain text blocks into one
+ var outputLength = 16 * result.length;
+ var output = new Uint8Array(outputLength);
+ for (i = 0, j = 0, ii = result.length; i < ii; ++i, j += 16) {
+ output.set(result[i], j);
+ }
+ return output;
+ }
+ };
+
+ return AES256Cipher;
+})();
+
+var PDF17 = (function PDF17Closure() {
+
+ function compareByteArrays(array1, array2) {
+ if (array1.length !== array2.length) {
+ return false;
+ }
+ for (var i = 0; i < array1.length; i++) {
+ if (array1[i] !== array2[i]) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ function PDF17() {
+ }
+
+ PDF17.prototype = {
+ checkOwnerPassword: function PDF17_checkOwnerPassword(password,
+ ownerValidationSalt,
+ userBytes,
+ ownerPassword) {
+ var hashData = new Uint8Array(password.length + 56);
+ hashData.set(password, 0);
+ hashData.set(ownerValidationSalt, password.length);
+ hashData.set(userBytes, password.length + ownerValidationSalt.length);
+ var result = calculateSHA256(hashData, 0, hashData.length);
+ return compareByteArrays(result, ownerPassword);
+ },
+ checkUserPassword: function PDF17_checkUserPassword(password,
+ userValidationSalt,
+ userPassword) {
+ var hashData = new Uint8Array(password.length + 8);
+ hashData.set(password, 0);
+ hashData.set(userValidationSalt, password.length);
+ var result = calculateSHA256(hashData, 0, hashData.length);
+ return compareByteArrays(result, userPassword);
+ },
+ getOwnerKey: function PDF17_getOwnerKey(password, ownerKeySalt, userBytes,
+ ownerEncryption) {
+ var hashData = new Uint8Array(password.length + 56);
+ hashData.set(password, 0);
+ hashData.set(ownerKeySalt, password.length);
+ hashData.set(userBytes, password.length + ownerKeySalt.length);
+ var key = calculateSHA256(hashData, 0, hashData.length);
+ var cipher = new AES256Cipher(key);
+ return cipher.decryptBlock(ownerEncryption,
+ false,
+ new Uint8Array(16));
+
+ },
+ getUserKey: function PDF17_getUserKey(password, userKeySalt,
+ userEncryption) {
+ var hashData = new Uint8Array(password.length + 8);
+ hashData.set(password, 0);
+ hashData.set(userKeySalt, password.length);
+ //key is the decryption key for the UE string
+ var key = calculateSHA256(hashData, 0, hashData.length);
+ var cipher = new AES256Cipher(key);
+ return cipher.decryptBlock(userEncryption,
+ false,
+ new Uint8Array(16));
+ }
+ };
+ return PDF17;
+})();
+
+var PDF20 = (function PDF20Closure() {
+
+ function concatArrays(array1, array2) {
+ var t = new Uint8Array(array1.length + array2.length);
+ t.set(array1, 0);
+ t.set(array2, array1.length);
+ return t;
+ }
+
+ function calculatePDF20Hash(password, input, userBytes) {
+ //This refers to Algorithm 2.B as defined in ISO 32000-2
+ var k = calculateSHA256(input, 0, input.length).subarray(0, 32);
+ var e = [0];
+ var i = 0;
+ while (i < 64 || e[e.length - 1] > i - 32) {
+ var arrayLength = password.length + k.length + userBytes.length;
+
+ var k1 = new Uint8Array(arrayLength * 64);
+ var array = concatArrays(password, k);
+ array = concatArrays(array, userBytes);
+ for (var j = 0, pos = 0; j < 64; j++, pos += arrayLength) {
+ k1.set(array, pos);
+ }
+ //AES128 CBC NO PADDING with
+ //first 16 bytes of k as the key and the second 16 as the iv.
+ var cipher = new AES128Cipher(k.subarray(0, 16));
+ e = cipher.encrypt(k1, k.subarray(16, 32));
+ //Now we have to take the first 16 bytes of an unsigned
+ //big endian integer... and compute the remainder
+ //modulo 3.... That is a fairly large number and
+ //JavaScript isn't going to handle that well...
+ //So we're using a trick that allows us to perform
+ //modulo math byte by byte
+ var remainder = 0;
+ for (var z = 0; z < 16; z++) {
+ remainder *= (256 % 3);
+ remainder %= 3;
+ remainder += ((e[z] >>> 0) % 3);
+ remainder %= 3;
+ }
+ if (remainder === 0) {
+ k = calculateSHA256(e, 0, e.length);
+ }
+ else if (remainder === 1) {
+ k = calculateSHA384(e, 0, e.length);
+ }
+ else if (remainder === 2) {
+ k = calculateSHA512(e, 0, e.length);
+ }
+ i++;
+ }
+ return k.subarray(0, 32);
+ }
+
+ function PDF20() {
+ }
+
+ function compareByteArrays(array1, array2) {
+ if (array1.length !== array2.length) {
+ return false;
+ }
+ for (var i = 0; i < array1.length; i++) {
+ if (array1[i] !== array2[i]) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ PDF20.prototype = {
+ hash: function PDF20_hash(password, concatBytes, userBytes) {
+ return calculatePDF20Hash(password, concatBytes, userBytes);
+ },
+ checkOwnerPassword: function PDF20_checkOwnerPassword(password,
+ ownerValidationSalt,
+ userBytes,
+ ownerPassword) {
+ var hashData = new Uint8Array(password.length + 56);
+ hashData.set(password, 0);
+ hashData.set(ownerValidationSalt, password.length);
+ hashData.set(userBytes, password.length + ownerValidationSalt.length);
+ var result = calculatePDF20Hash(password, hashData, userBytes);
+ return compareByteArrays(result, ownerPassword);
+ },
+ checkUserPassword: function PDF20_checkUserPassword(password,
+ userValidationSalt,
+ userPassword) {
+ var hashData = new Uint8Array(password.length + 8);
+ hashData.set(password, 0);
+ hashData.set(userValidationSalt, password.length);
+ var result = calculatePDF20Hash(password, hashData, []);
+ return compareByteArrays(result, userPassword);
+ },
+ getOwnerKey: function PDF20_getOwnerKey(password, ownerKeySalt, userBytes,
+ ownerEncryption) {
+ var hashData = new Uint8Array(password.length + 56);
+ hashData.set(password, 0);
+ hashData.set(ownerKeySalt, password.length);
+ hashData.set(userBytes, password.length + ownerKeySalt.length);
+ var key = calculatePDF20Hash(password, hashData, userBytes);
+ var cipher = new AES256Cipher(key);
+ return cipher.decryptBlock(ownerEncryption,
+ false,
+ new Uint8Array(16));
+
+ },
+ getUserKey: function PDF20_getUserKey(password, userKeySalt,
+ userEncryption) {
+ var hashData = new Uint8Array(password.length + 8);
+ hashData.set(password, 0);
+ hashData.set(userKeySalt, password.length);
+ //key is the decryption key for the UE string
+ var key = calculatePDF20Hash(password, hashData, []);
+ var cipher = new AES256Cipher(key);
+ return cipher.decryptBlock(userEncryption,
+ false,
+ new Uint8Array(16));
+ }
+ };
+ return PDF20;
+})();
+
+var CipherTransform = (function CipherTransformClosure() {
+ function CipherTransform(stringCipherConstructor, streamCipherConstructor) {
+ this.stringCipherConstructor = stringCipherConstructor;
+ this.streamCipherConstructor = streamCipherConstructor;
+ }
+
+ CipherTransform.prototype = {
+ createStream: function CipherTransform_createStream(stream, length) {
+ var cipher = new this.streamCipherConstructor();
+ return new DecryptStream(stream, length,
+ function cipherTransformDecryptStream(data, finalize) {
+ return cipher.decryptBlock(data, finalize);
+ }
+ );
+ },
+ decryptString: function CipherTransform_decryptString(s) {
+ var cipher = new this.stringCipherConstructor();
+ var data = stringToBytes(s);
+ data = cipher.decryptBlock(data, true);
+ return bytesToString(data);
+ }
+ };
+ return CipherTransform;
+})();
+
+var CipherTransformFactory = (function CipherTransformFactoryClosure() {
+ var defaultPasswordBytes = new Uint8Array([
+ 0x28, 0xBF, 0x4E, 0x5E, 0x4E, 0x75, 0x8A, 0x41,
+ 0x64, 0x00, 0x4E, 0x56, 0xFF, 0xFA, 0x01, 0x08,
+ 0x2E, 0x2E, 0x00, 0xB6, 0xD0, 0x68, 0x3E, 0x80,
+ 0x2F, 0x0C, 0xA9, 0xFE, 0x64, 0x53, 0x69, 0x7A]);
+
+ function createEncryptionKey20(revision, password, ownerPassword,
+ ownerValidationSalt, ownerKeySalt, uBytes,
+ userPassword, userValidationSalt, userKeySalt,
+ ownerEncryption, userEncryption, perms) {
+ if (password) {
+ var passwordLength = Math.min(127, password.length);
+ password = password.subarray(0, passwordLength);
+ } else {
+ password = [];
+ }
+ var pdfAlgorithm;
+ if (revision === 6) {
+ pdfAlgorithm = new PDF20();
+ } else {
+ pdfAlgorithm = new PDF17();
+ }
+
+ if (pdfAlgorithm) {
+ if (pdfAlgorithm.checkUserPassword(password, userValidationSalt,
+ userPassword)) {
+ return pdfAlgorithm.getUserKey(password, userKeySalt, userEncryption);
+ } else if (pdfAlgorithm.checkOwnerPassword(password, ownerValidationSalt,
+ uBytes,
+ ownerPassword)) {
+ return pdfAlgorithm.getOwnerKey(password, ownerKeySalt, uBytes,
+ ownerEncryption);
+ }
+ }
+
+ return null;
+ }
+
+ function prepareKeyData(fileId, password, ownerPassword, userPassword,
+ flags, revision, keyLength, encryptMetadata) {
+ var hashDataSize = 40 + ownerPassword.length + fileId.length;
+ var hashData = new Uint8Array(hashDataSize), i = 0, j, n;
+ if (password) {
+ n = Math.min(32, password.length);
+ for (; i < n; ++i) {
+ hashData[i] = password[i];
+ }
+ }
+ j = 0;
+ while (i < 32) {
+ hashData[i++] = defaultPasswordBytes[j++];
+ }
+ // as now the padded password in the hashData[0..i]
+ for (j = 0, n = ownerPassword.length; j < n; ++j) {
+ hashData[i++] = ownerPassword[j];
+ }
+ hashData[i++] = flags & 0xFF;
+ hashData[i++] = (flags >> 8) & 0xFF;
+ hashData[i++] = (flags >> 16) & 0xFF;
+ hashData[i++] = (flags >>> 24) & 0xFF;
+ for (j = 0, n = fileId.length; j < n; ++j) {
+ hashData[i++] = fileId[j];
+ }
+ if (revision >= 4 && !encryptMetadata) {
+ hashData[i++] = 0xFF;
+ hashData[i++] = 0xFF;
+ hashData[i++] = 0xFF;
+ hashData[i++] = 0xFF;
+ }
+ var hash = calculateMD5(hashData, 0, i);
+ var keyLengthInBytes = keyLength >> 3;
+ if (revision >= 3) {
+ for (j = 0; j < 50; ++j) {
+ hash = calculateMD5(hash, 0, keyLengthInBytes);
+ }
+ }
+ var encryptionKey = hash.subarray(0, keyLengthInBytes);
+ var cipher, checkData;
+
+ if (revision >= 3) {
+ for (i = 0; i < 32; ++i) {
+ hashData[i] = defaultPasswordBytes[i];
+ }
+ for (j = 0, n = fileId.length; j < n; ++j) {
+ hashData[i++] = fileId[j];
+ }
+ cipher = new ARCFourCipher(encryptionKey);
+ checkData = cipher.encryptBlock(calculateMD5(hashData, 0, i));
+ n = encryptionKey.length;
+ var derivedKey = new Uint8Array(n), k;
+ for (j = 1; j <= 19; ++j) {
+ for (k = 0; k < n; ++k) {
+ derivedKey[k] = encryptionKey[k] ^ j;
+ }
+ cipher = new ARCFourCipher(derivedKey);
+ checkData = cipher.encryptBlock(checkData);
+ }
+ for (j = 0, n = checkData.length; j < n; ++j) {
+ if (userPassword[j] !== checkData[j]) {
+ return null;
+ }
+ }
+ } else {
+ cipher = new ARCFourCipher(encryptionKey);
+ checkData = cipher.encryptBlock(defaultPasswordBytes);
+ for (j = 0, n = checkData.length; j < n; ++j) {
+ if (userPassword[j] !== checkData[j]) {
+ return null;
+ }
+ }
+ }
+ return encryptionKey;
+ }
+
+ function decodeUserPassword(password, ownerPassword, revision, keyLength) {
+ var hashData = new Uint8Array(32), i = 0, j, n;
+ n = Math.min(32, password.length);
+ for (; i < n; ++i) {
+ hashData[i] = password[i];
+ }
+ j = 0;
+ while (i < 32) {
+ hashData[i++] = defaultPasswordBytes[j++];
+ }
+ var hash = calculateMD5(hashData, 0, i);
+ var keyLengthInBytes = keyLength >> 3;
+ if (revision >= 3) {
+ for (j = 0; j < 50; ++j) {
+ hash = calculateMD5(hash, 0, hash.length);
+ }
+ }
+
+ var cipher, userPassword;
+ if (revision >= 3) {
+ userPassword = ownerPassword;
+ var derivedKey = new Uint8Array(keyLengthInBytes), k;
+ for (j = 19; j >= 0; j--) {
+ for (k = 0; k < keyLengthInBytes; ++k) {
+ derivedKey[k] = hash[k] ^ j;
+ }
+ cipher = new ARCFourCipher(derivedKey);
+ userPassword = cipher.encryptBlock(userPassword);
+ }
+ } else {
+ cipher = new ARCFourCipher(hash.subarray(0, keyLengthInBytes));
+ userPassword = cipher.encryptBlock(ownerPassword);
+ }
+ return userPassword;
+ }
+
+ var identityName = Name.get('Identity');
+
+ function CipherTransformFactory(dict, fileId, password) {
+ var filter = dict.get('Filter');
+ if (!isName(filter) || filter.name !== 'Standard') {
+ error('unknown encryption method');
+ }
+ this.dict = dict;
+ var algorithm = dict.get('V');
+ if (!isInt(algorithm) ||
+ (algorithm !== 1 && algorithm !== 2 && algorithm !== 4 &&
+ algorithm !== 5)) {
+ error('unsupported encryption algorithm');
+ }
+ this.algorithm = algorithm;
+ var keyLength = dict.get('Length') || 40;
+ if (!isInt(keyLength) ||
+ keyLength < 40 || (keyLength % 8) !== 0) {
+ error('invalid key length');
+ }
+
+ // prepare keys
+ var ownerPassword = stringToBytes(dict.get('O')).subarray(0, 32);
+ var userPassword = stringToBytes(dict.get('U')).subarray(0, 32);
+ var flags = dict.get('P');
+ var revision = dict.get('R');
+ // meaningful when V is 4 or 5
+ var encryptMetadata = ((algorithm === 4 || algorithm === 5) &&
+ dict.get('EncryptMetadata') !== false);
+ this.encryptMetadata = encryptMetadata;
+
+ var fileIdBytes = stringToBytes(fileId);
+ var passwordBytes;
+ if (password) {
+ passwordBytes = stringToBytes(password);
+ }
+
+ var encryptionKey;
+ if (algorithm !== 5) {
+ encryptionKey = prepareKeyData(fileIdBytes, passwordBytes,
+ ownerPassword, userPassword, flags,
+ revision, keyLength, encryptMetadata);
+ }
+ else {
+ var ownerValidationSalt = stringToBytes(dict.get('O')).subarray(32, 40);
+ var ownerKeySalt = stringToBytes(dict.get('O')).subarray(40, 48);
+ var uBytes = stringToBytes(dict.get('U')).subarray(0, 48);
+ var userValidationSalt = stringToBytes(dict.get('U')).subarray(32, 40);
+ var userKeySalt = stringToBytes(dict.get('U')).subarray(40, 48);
+ var ownerEncryption = stringToBytes(dict.get('OE'));
+ var userEncryption = stringToBytes(dict.get('UE'));
+ var perms = stringToBytes(dict.get('Perms'));
+ encryptionKey =
+ createEncryptionKey20(revision, passwordBytes,
+ ownerPassword, ownerValidationSalt,
+ ownerKeySalt, uBytes,
+ userPassword, userValidationSalt,
+ userKeySalt, ownerEncryption,
+ userEncryption, perms);
+ }
+ if (!encryptionKey && !password) {
+ throw new PasswordException('No password given',
+ PasswordResponses.NEED_PASSWORD);
+ } else if (!encryptionKey && password) {
+ // Attempting use the password as an owner password
+ var decodedPassword = decodeUserPassword(passwordBytes, ownerPassword,
+ revision, keyLength);
+ encryptionKey = prepareKeyData(fileIdBytes, decodedPassword,
+ ownerPassword, userPassword, flags,
+ revision, keyLength, encryptMetadata);
+ }
+
+ if (!encryptionKey) {
+ throw new PasswordException('Incorrect Password',
+ PasswordResponses.INCORRECT_PASSWORD);
+ }
+
+ this.encryptionKey = encryptionKey;
+
+ if (algorithm >= 4) {
+ this.cf = dict.get('CF');
+ this.stmf = dict.get('StmF') || identityName;
+ this.strf = dict.get('StrF') || identityName;
+ this.eff = dict.get('EFF') || this.stmf;
+ }
+ }
+
+ function buildObjectKey(num, gen, encryptionKey, isAes) {
+ var key = new Uint8Array(encryptionKey.length + 9), i, n;
+ for (i = 0, n = encryptionKey.length; i < n; ++i) {
+ key[i] = encryptionKey[i];
+ }
+ key[i++] = num & 0xFF;
+ key[i++] = (num >> 8) & 0xFF;
+ key[i++] = (num >> 16) & 0xFF;
+ key[i++] = gen & 0xFF;
+ key[i++] = (gen >> 8) & 0xFF;
+ if (isAes) {
+ key[i++] = 0x73;
+ key[i++] = 0x41;
+ key[i++] = 0x6C;
+ key[i++] = 0x54;
+ }
+ var hash = calculateMD5(key, 0, i);
+ return hash.subarray(0, Math.min(encryptionKey.length + 5, 16));
+ }
+
+ function buildCipherConstructor(cf, name, num, gen, key) {
+ var cryptFilter = cf.get(name.name);
+ var cfm;
+ if (cryptFilter !== null && cryptFilter !== undefined) {
+ cfm = cryptFilter.get('CFM');
+ }
+ if (!cfm || cfm.name === 'None') {
+ return function cipherTransformFactoryBuildCipherConstructorNone() {
+ return new NullCipher();
+ };
+ }
+ if ('V2' === cfm.name) {
+ return function cipherTransformFactoryBuildCipherConstructorV2() {
+ return new ARCFourCipher(buildObjectKey(num, gen, key, false));
+ };
+ }
+ if ('AESV2' === cfm.name) {
+ return function cipherTransformFactoryBuildCipherConstructorAESV2() {
+ return new AES128Cipher(buildObjectKey(num, gen, key, true));
+ };
+ }
+ if ('AESV3' === cfm.name) {
+ return function cipherTransformFactoryBuildCipherConstructorAESV3() {
+ return new AES256Cipher(key);
+ };
+ }
+ error('Unknown crypto method');
+ }
+
+ CipherTransformFactory.prototype = {
+ createCipherTransform:
+ function CipherTransformFactory_createCipherTransform(num, gen) {
+ if (this.algorithm === 4 || this.algorithm === 5) {
+ return new CipherTransform(
+ buildCipherConstructor(this.cf, this.stmf,
+ num, gen, this.encryptionKey),
+ buildCipherConstructor(this.cf, this.strf,
+ num, gen, this.encryptionKey));
+ }
+ // algorithms 1 and 2
+ var key = buildObjectKey(num, gen, this.encryptionKey, false);
+ var cipherConstructor = function buildCipherCipherConstructor() {
+ return new ARCFourCipher(key);
+ };
+ return new CipherTransform(cipherConstructor, cipherConstructor);
+ }
+ };
+
+ return CipherTransformFactory;
+})();
+
+
+var PatternType = {
+ FUNCTION_BASED: 1,
+ AXIAL: 2,
+ RADIAL: 3,
+ FREE_FORM_MESH: 4,
+ LATTICE_FORM_MESH: 5,
+ COONS_PATCH_MESH: 6,
+ TENSOR_PATCH_MESH: 7
+};
+
+var Pattern = (function PatternClosure() {
+ // Constructor should define this.getPattern
+ function Pattern() {
+ error('should not call Pattern constructor');
+ }
+
+ Pattern.prototype = {
+ // Input: current Canvas context
+ // Output: the appropriate fillStyle or strokeStyle
+ getPattern: function Pattern_getPattern(ctx) {
+ error('Should not call Pattern.getStyle: ' + ctx);
+ }
+ };
+
+ Pattern.parseShading = function Pattern_parseShading(shading, matrix, xref,
+ res) {
+
+ var dict = isStream(shading) ? shading.dict : shading;
+ var type = dict.get('ShadingType');
+
+ try {
+ switch (type) {
+ case PatternType.AXIAL:
+ case PatternType.RADIAL:
+ // Both radial and axial shadings are handled by RadialAxial shading.
+ return new Shadings.RadialAxial(dict, matrix, xref, res);
+ case PatternType.FREE_FORM_MESH:
+ case PatternType.LATTICE_FORM_MESH:
+ case PatternType.COONS_PATCH_MESH:
+ case PatternType.TENSOR_PATCH_MESH:
+ return new Shadings.Mesh(shading, matrix, xref, res);
+ default:
+ throw new Error('Unknown PatternType: ' + type);
+ }
+ } catch (ex) {
+ if (ex instanceof MissingDataException) {
+ throw ex;
+ }
+ UnsupportedManager.notify(UNSUPPORTED_FEATURES.shadingPattern);
+ warn(ex);
+ return new Shadings.Dummy();
+ }
+ };
+ return Pattern;
+})();
+
+var Shadings = {};
+
+// A small number to offset the first/last color stops so we can insert ones to
+// support extend. Number.MIN_VALUE appears to be too small and breaks the
+// extend. 1e-7 works in FF but chrome seems to use an even smaller sized number
+// internally so we have to go bigger.
+Shadings.SMALL_NUMBER = 1e-2;
+
+// Radial and axial shading have very similar implementations
+// If needed, the implementations can be broken into two classes
+Shadings.RadialAxial = (function RadialAxialClosure() {
+ function RadialAxial(dict, matrix, xref, res) {
+ this.matrix = matrix;
+ this.coordsArr = dict.get('Coords');
+ this.shadingType = dict.get('ShadingType');
+ this.type = 'Pattern';
+ var cs = dict.get('ColorSpace', 'CS');
+ cs = ColorSpace.parse(cs, xref, res);
+ this.cs = cs;
+
+ var t0 = 0.0, t1 = 1.0;
+ if (dict.has('Domain')) {
+ var domainArr = dict.get('Domain');
+ t0 = domainArr[0];
+ t1 = domainArr[1];
+ }
+
+ var extendStart = false, extendEnd = false;
+ if (dict.has('Extend')) {
+ var extendArr = dict.get('Extend');
+ extendStart = extendArr[0];
+ extendEnd = extendArr[1];
+ }
+
+ if (this.shadingType === PatternType.RADIAL &&
+ (!extendStart || !extendEnd)) {
+ // Radial gradient only currently works if either circle is fully within
+ // the other circle.
+ var x1 = this.coordsArr[0];
+ var y1 = this.coordsArr[1];
+ var r1 = this.coordsArr[2];
+ var x2 = this.coordsArr[3];
+ var y2 = this.coordsArr[4];
+ var r2 = this.coordsArr[5];
+ var distance = Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));
+ if (r1 <= r2 + distance &&
+ r2 <= r1 + distance) {
+ warn('Unsupported radial gradient.');
+ }
+ }
+
+ this.extendStart = extendStart;
+ this.extendEnd = extendEnd;
+
+ var fnObj = dict.get('Function');
+ var fn = PDFFunction.parseArray(xref, fnObj);
+
+ // 10 samples seems good enough for now, but probably won't work
+ // if there are sharp color changes. Ideally, we would implement
+ // the spec faithfully and add lossless optimizations.
+ var diff = t1 - t0;
+ var step = diff / 10;
+
+ var colorStops = this.colorStops = [];
+
+ // Protect against bad domains so we don't end up in an infinte loop below.
+ if (t0 >= t1 || step <= 0) {
+ // Acrobat doesn't seem to handle these cases so we'll ignore for
+ // now.
+ info('Bad shading domain.');
+ return;
+ }
+
+ var color = new Float32Array(cs.numComps), ratio = new Float32Array(1);
+ var rgbColor;
+ for (var i = t0; i <= t1; i += step) {
+ ratio[0] = i;
+ fn(ratio, 0, color, 0);
+ rgbColor = cs.getRgb(color, 0);
+ var cssColor = Util.makeCssRgb(rgbColor[0], rgbColor[1], rgbColor[2]);
+ colorStops.push([(i - t0) / diff, cssColor]);
+ }
+
+ var background = 'transparent';
+ if (dict.has('Background')) {
+ rgbColor = cs.getRgb(dict.get('Background'), 0);
+ background = Util.makeCssRgb(rgbColor[0], rgbColor[1], rgbColor[2]);
+ }
+
+ if (!extendStart) {
+ // Insert a color stop at the front and offset the first real color stop
+ // so it doesn't conflict with the one we insert.
+ colorStops.unshift([0, background]);
+ colorStops[1][0] += Shadings.SMALL_NUMBER;
+ }
+ if (!extendEnd) {
+ // Same idea as above in extendStart but for the end.
+ colorStops[colorStops.length - 1][0] -= Shadings.SMALL_NUMBER;
+ colorStops.push([1, background]);
+ }
+
+ this.colorStops = colorStops;
+ }
+
+ RadialAxial.prototype = {
+ getIR: function RadialAxial_getIR() {
+ var coordsArr = this.coordsArr;
+ var shadingType = this.shadingType;
+ var type, p0, p1, r0, r1;
+ if (shadingType === PatternType.AXIAL) {
+ p0 = [coordsArr[0], coordsArr[1]];
+ p1 = [coordsArr[2], coordsArr[3]];
+ r0 = null;
+ r1 = null;
+ type = 'axial';
+ } else if (shadingType === PatternType.RADIAL) {
+ p0 = [coordsArr[0], coordsArr[1]];
+ p1 = [coordsArr[3], coordsArr[4]];
+ r0 = coordsArr[2];
+ r1 = coordsArr[5];
+ type = 'radial';
+ } else {
+ error('getPattern type unknown: ' + shadingType);
+ }
+
+ var matrix = this.matrix;
+ if (matrix) {
+ p0 = Util.applyTransform(p0, matrix);
+ p1 = Util.applyTransform(p1, matrix);
+ }
+
+ return ['RadialAxial', type, this.colorStops, p0, p1, r0, r1];
+ }
+ };
+
+ return RadialAxial;
+})();
+
+// All mesh shading. For now, they will be presented as set of the triangles
+// to be drawn on the canvas and rgb color for each vertex.
+Shadings.Mesh = (function MeshClosure() {
+ function MeshStreamReader(stream, context) {
+ this.stream = stream;
+ this.context = context;
+ this.buffer = 0;
+ this.bufferLength = 0;
+
+ var numComps = context.numComps;
+ this.tmpCompsBuf = new Float32Array(numComps);
+ var csNumComps = context.colorSpace;
+ this.tmpCsCompsBuf = context.colorFn ? new Float32Array(csNumComps) :
+ this.tmpCompsBuf;
+ }
+ MeshStreamReader.prototype = {
+ get hasData() {
+ if (this.stream.end) {
+ return this.stream.pos < this.stream.end;
+ }
+ if (this.bufferLength > 0) {
+ return true;
+ }
+ var nextByte = this.stream.getByte();
+ if (nextByte < 0) {
+ return false;
+ }
+ this.buffer = nextByte;
+ this.bufferLength = 8;
+ return true;
+ },
+ readBits: function MeshStreamReader_readBits(n) {
+ var buffer = this.buffer;
+ var bufferLength = this.bufferLength;
+ if (n === 32) {
+ if (bufferLength === 0) {
+ return ((this.stream.getByte() << 24) |
+ (this.stream.getByte() << 16) | (this.stream.getByte() << 8) |
+ this.stream.getByte()) >>> 0;
+ }
+ buffer = (buffer << 24) | (this.stream.getByte() << 16) |
+ (this.stream.getByte() << 8) | this.stream.getByte();
+ var nextByte = this.stream.getByte();
+ this.buffer = nextByte & ((1 << bufferLength) - 1);
+ return ((buffer << (8 - bufferLength)) |
+ ((nextByte & 0xFF) >> bufferLength)) >>> 0;
+ }
+ if (n === 8 && bufferLength === 0) {
+ return this.stream.getByte();
+ }
+ while (bufferLength < n) {
+ buffer = (buffer << 8) | this.stream.getByte();
+ bufferLength += 8;
+ }
+ bufferLength -= n;
+ this.bufferLength = bufferLength;
+ this.buffer = buffer & ((1 << bufferLength) - 1);
+ return buffer >> bufferLength;
+ },
+ align: function MeshStreamReader_align() {
+ this.buffer = 0;
+ this.bufferLength = 0;
+ },
+ readFlag: function MeshStreamReader_readFlag() {
+ return this.readBits(this.context.bitsPerFlag);
+ },
+ readCoordinate: function MeshStreamReader_readCoordinate() {
+ var bitsPerCoordinate = this.context.bitsPerCoordinate;
+ var xi = this.readBits(bitsPerCoordinate);
+ var yi = this.readBits(bitsPerCoordinate);
+ var decode = this.context.decode;
+ var scale = bitsPerCoordinate < 32 ? 1 / ((1 << bitsPerCoordinate) - 1) :
+ 2.3283064365386963e-10; // 2 ^ -32
+ return [
+ xi * scale * (decode[1] - decode[0]) + decode[0],
+ yi * scale * (decode[3] - decode[2]) + decode[2]
+ ];
+ },
+ readComponents: function MeshStreamReader_readComponents() {
+ var numComps = this.context.numComps;
+ var bitsPerComponent = this.context.bitsPerComponent;
+ var scale = bitsPerComponent < 32 ? 1 / ((1 << bitsPerComponent) - 1) :
+ 2.3283064365386963e-10; // 2 ^ -32
+ var decode = this.context.decode;
+ var components = this.tmpCompsBuf;
+ for (var i = 0, j = 4; i < numComps; i++, j += 2) {
+ var ci = this.readBits(bitsPerComponent);
+ components[i] = ci * scale * (decode[j + 1] - decode[j]) + decode[j];
+ }
+ var color = this.tmpCsCompsBuf;
+ if (this.context.colorFn) {
+ this.context.colorFn(components, 0, color, 0);
+ }
+ return this.context.colorSpace.getRgb(color, 0);
+ }
+ };
+
+ function decodeType4Shading(mesh, reader) {
+ var coords = mesh.coords;
+ var colors = mesh.colors;
+ var operators = [];
+ var ps = []; // not maintaining cs since that will match ps
+ var verticesLeft = 0; // assuming we have all data to start a new triangle
+ while (reader.hasData) {
+ var f = reader.readFlag();
+ var coord = reader.readCoordinate();
+ var color = reader.readComponents();
+ if (verticesLeft === 0) { // ignoring flags if we started a triangle
+ assert(0 <= f && f <= 2, 'Unknown type4 flag');
+ switch (f) {
+ case 0:
+ verticesLeft = 3;
+ break;
+ case 1:
+ ps.push(ps[ps.length - 2], ps[ps.length - 1]);
+ verticesLeft = 1;
+ break;
+ case 2:
+ ps.push(ps[ps.length - 3], ps[ps.length - 1]);
+ verticesLeft = 1;
+ break;
+ }
+ operators.push(f);
+ }
+ ps.push(coords.length);
+ coords.push(coord);
+ colors.push(color);
+ verticesLeft--;
+
+ reader.align();
+ }
+
+ var psPacked = new Int32Array(ps);
+
+ mesh.figures.push({
+ type: 'triangles',
+ coords: psPacked,
+ colors: psPacked
+ });
+ }
+
+ function decodeType5Shading(mesh, reader, verticesPerRow) {
+ var coords = mesh.coords;
+ var colors = mesh.colors;
+ var ps = []; // not maintaining cs since that will match ps
+ while (reader.hasData) {
+ var coord = reader.readCoordinate();
+ var color = reader.readComponents();
+ ps.push(coords.length);
+ coords.push(coord);
+ colors.push(color);
+ }
+
+ var psPacked = new Int32Array(ps);
+
+ mesh.figures.push({
+ type: 'lattice',
+ coords: psPacked,
+ colors: psPacked,
+ verticesPerRow: verticesPerRow
+ });
+ }
+
+ var MIN_SPLIT_PATCH_CHUNKS_AMOUNT = 3;
+ var MAX_SPLIT_PATCH_CHUNKS_AMOUNT = 20;
+
+ var TRIANGLE_DENSITY = 20; // count of triangles per entire mesh bounds
+
+ var getB = (function getBClosure() {
+ function buildB(count) {
+ var lut = [];
+ for (var i = 0; i <= count; i++) {
+ var t = i / count, t_ = 1 - t;
+ lut.push(new Float32Array([t_ * t_ * t_, 3 * t * t_ * t_,
+ 3 * t * t * t_, t * t * t]));
+ }
+ return lut;
+ }
+ var cache = [];
+ return function getB(count) {
+ if (!cache[count]) {
+ cache[count] = buildB(count);
+ }
+ return cache[count];
+ };
+ })();
+
+ function buildFigureFromPatch(mesh, index) {
+ var figure = mesh.figures[index];
+ assert(figure.type === 'patch', 'Unexpected patch mesh figure');
+
+ var coords = mesh.coords, colors = mesh.colors;
+ var pi = figure.coords;
+ var ci = figure.colors;
+
+ var figureMinX = Math.min(coords[pi[0]][0], coords[pi[3]][0],
+ coords[pi[12]][0], coords[pi[15]][0]);
+ var figureMinY = Math.min(coords[pi[0]][1], coords[pi[3]][1],
+ coords[pi[12]][1], coords[pi[15]][1]);
+ var figureMaxX = Math.max(coords[pi[0]][0], coords[pi[3]][0],
+ coords[pi[12]][0], coords[pi[15]][0]);
+ var figureMaxY = Math.max(coords[pi[0]][1], coords[pi[3]][1],
+ coords[pi[12]][1], coords[pi[15]][1]);
+ var splitXBy = Math.ceil((figureMaxX - figureMinX) * TRIANGLE_DENSITY /
+ (mesh.bounds[2] - mesh.bounds[0]));
+ splitXBy = Math.max(MIN_SPLIT_PATCH_CHUNKS_AMOUNT,
+ Math.min(MAX_SPLIT_PATCH_CHUNKS_AMOUNT, splitXBy));
+ var splitYBy = Math.ceil((figureMaxY - figureMinY) * TRIANGLE_DENSITY /
+ (mesh.bounds[3] - mesh.bounds[1]));
+ splitYBy = Math.max(MIN_SPLIT_PATCH_CHUNKS_AMOUNT,
+ Math.min(MAX_SPLIT_PATCH_CHUNKS_AMOUNT, splitYBy));
+
+ var verticesPerRow = splitXBy + 1;
+ var figureCoords = new Int32Array((splitYBy + 1) * verticesPerRow);
+ var figureColors = new Int32Array((splitYBy + 1) * verticesPerRow);
+ var k = 0;
+ var cl = new Uint8Array(3), cr = new Uint8Array(3);
+ var c0 = colors[ci[0]], c1 = colors[ci[1]],
+ c2 = colors[ci[2]], c3 = colors[ci[3]];
+ var bRow = getB(splitYBy), bCol = getB(splitXBy);
+ for (var row = 0; row <= splitYBy; row++) {
+ cl[0] = ((c0[0] * (splitYBy - row) + c2[0] * row) / splitYBy) | 0;
+ cl[1] = ((c0[1] * (splitYBy - row) + c2[1] * row) / splitYBy) | 0;
+ cl[2] = ((c0[2] * (splitYBy - row) + c2[2] * row) / splitYBy) | 0;
+
+ cr[0] = ((c1[0] * (splitYBy - row) + c3[0] * row) / splitYBy) | 0;
+ cr[1] = ((c1[1] * (splitYBy - row) + c3[1] * row) / splitYBy) | 0;
+ cr[2] = ((c1[2] * (splitYBy - row) + c3[2] * row) / splitYBy) | 0;
+
+ for (var col = 0; col <= splitXBy; col++, k++) {
+ if ((row === 0 || row === splitYBy) &&
+ (col === 0 || col === splitXBy)) {
+ continue;
+ }
+ var x = 0, y = 0;
+ var q = 0;
+ for (var i = 0; i <= 3; i++) {
+ for (var j = 0; j <= 3; j++, q++) {
+ var m = bRow[row][i] * bCol[col][j];
+ x += coords[pi[q]][0] * m;
+ y += coords[pi[q]][1] * m;
+ }
+ }
+ figureCoords[k] = coords.length;
+ coords.push([x, y]);
+ figureColors[k] = colors.length;
+ var newColor = new Uint8Array(3);
+ newColor[0] = ((cl[0] * (splitXBy - col) + cr[0] * col) / splitXBy) | 0;
+ newColor[1] = ((cl[1] * (splitXBy - col) + cr[1] * col) / splitXBy) | 0;
+ newColor[2] = ((cl[2] * (splitXBy - col) + cr[2] * col) / splitXBy) | 0;
+ colors.push(newColor);
+ }
+ }
+ figureCoords[0] = pi[0];
+ figureColors[0] = ci[0];
+ figureCoords[splitXBy] = pi[3];
+ figureColors[splitXBy] = ci[1];
+ figureCoords[verticesPerRow * splitYBy] = pi[12];
+ figureColors[verticesPerRow * splitYBy] = ci[2];
+ figureCoords[verticesPerRow * splitYBy + splitXBy] = pi[15];
+ figureColors[verticesPerRow * splitYBy + splitXBy] = ci[3];
+
+ mesh.figures[index] = {
+ type: 'lattice',
+ coords: figureCoords,
+ colors: figureColors,
+ verticesPerRow: verticesPerRow
+ };
+ }
+
+ function decodeType6Shading(mesh, reader) {
+ // A special case of Type 7. The p11, p12, p21, p22 automatically filled
+ var coords = mesh.coords;
+ var colors = mesh.colors;
+ var ps = new Int32Array(16); // p00, p10, ..., p30, p01, ..., p33
+ var cs = new Int32Array(4); // c00, c30, c03, c33
+ while (reader.hasData) {
+ var f = reader.readFlag();
+ assert(0 <= f && f <= 3, 'Unknown type6 flag');
+ var i, ii;
+ var pi = coords.length;
+ for (i = 0, ii = (f !== 0 ? 8 : 12); i < ii; i++) {
+ coords.push(reader.readCoordinate());
+ }
+ var ci = colors.length;
+ for (i = 0, ii = (f !== 0 ? 2 : 4); i < ii; i++) {
+ colors.push(reader.readComponents());
+ }
+ var tmp1, tmp2, tmp3, tmp4;
+ switch (f) {
+ case 0:
+ ps[12] = pi + 3; ps[13] = pi + 4; ps[14] = pi + 5; ps[15] = pi + 6;
+ ps[ 8] = pi + 2; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 7;
+ ps[ 4] = pi + 1; /* calculated below */ ps[ 7] = pi + 8;
+ ps[ 0] = pi; ps[ 1] = pi + 11; ps[ 2] = pi + 10; ps[ 3] = pi + 9;
+ cs[2] = ci + 1; cs[3] = ci + 2;
+ cs[0] = ci; cs[1] = ci + 3;
+ break;
+ case 1:
+ tmp1 = ps[12]; tmp2 = ps[13]; tmp3 = ps[14]; tmp4 = ps[15];
+ ps[12] = pi + 5; ps[13] = pi + 4; ps[14] = pi + 3; ps[15] = pi + 2;
+ ps[ 8] = pi + 6; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 1;
+ ps[ 4] = pi + 7; /* calculated below */ ps[ 7] = pi;
+ ps[ 0] = tmp1; ps[ 1] = tmp2; ps[ 2] = tmp3; ps[ 3] = tmp4;
+ tmp1 = cs[2]; tmp2 = cs[3];
+ cs[2] = ci + 1; cs[3] = ci;
+ cs[0] = tmp1; cs[1] = tmp2;
+ break;
+ case 2:
+ ps[12] = ps[15]; ps[13] = pi + 7; ps[14] = pi + 6; ps[15] = pi + 5;
+ ps[ 8] = ps[11]; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 4;
+ ps[ 4] = ps[7]; /* calculated below */ ps[ 7] = pi + 3;
+ ps[ 0] = ps[3]; ps[ 1] = pi; ps[ 2] = pi + 1; ps[ 3] = pi + 2;
+ cs[2] = cs[3]; cs[3] = ci + 1;
+ cs[0] = cs[1]; cs[1] = ci;
+ break;
+ case 3:
+ ps[12] = ps[0]; ps[13] = ps[1]; ps[14] = ps[2]; ps[15] = ps[3];
+ ps[ 8] = pi; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 7;
+ ps[ 4] = pi + 1; /* calculated below */ ps[ 7] = pi + 6;
+ ps[ 0] = pi + 2; ps[ 1] = pi + 3; ps[ 2] = pi + 4; ps[ 3] = pi + 5;
+ cs[2] = cs[0]; cs[3] = cs[1];
+ cs[0] = ci; cs[1] = ci + 1;
+ break;
+ }
+ // set p11, p12, p21, p22
+ ps[5] = coords.length;
+ coords.push([
+ (-4 * coords[ps[0]][0] - coords[ps[15]][0] +
+ 6 * (coords[ps[4]][0] + coords[ps[1]][0]) -
+ 2 * (coords[ps[12]][0] + coords[ps[3]][0]) +
+ 3 * (coords[ps[13]][0] + coords[ps[7]][0])) / 9,
+ (-4 * coords[ps[0]][1] - coords[ps[15]][1] +
+ 6 * (coords[ps[4]][1] + coords[ps[1]][1]) -
+ 2 * (coords[ps[12]][1] + coords[ps[3]][1]) +
+ 3 * (coords[ps[13]][1] + coords[ps[7]][1])) / 9
+ ]);
+ ps[6] = coords.length;
+ coords.push([
+ (-4 * coords[ps[3]][0] - coords[ps[12]][0] +
+ 6 * (coords[ps[2]][0] + coords[ps[7]][0]) -
+ 2 * (coords[ps[0]][0] + coords[ps[15]][0]) +
+ 3 * (coords[ps[4]][0] + coords[ps[14]][0])) / 9,
+ (-4 * coords[ps[3]][1] - coords[ps[12]][1] +
+ 6 * (coords[ps[2]][1] + coords[ps[7]][1]) -
+ 2 * (coords[ps[0]][1] + coords[ps[15]][1]) +
+ 3 * (coords[ps[4]][1] + coords[ps[14]][1])) / 9
+ ]);
+ ps[9] = coords.length;
+ coords.push([
+ (-4 * coords[ps[12]][0] - coords[ps[3]][0] +
+ 6 * (coords[ps[8]][0] + coords[ps[13]][0]) -
+ 2 * (coords[ps[0]][0] + coords[ps[15]][0]) +
+ 3 * (coords[ps[11]][0] + coords[ps[1]][0])) / 9,
+ (-4 * coords[ps[12]][1] - coords[ps[3]][1] +
+ 6 * (coords[ps[8]][1] + coords[ps[13]][1]) -
+ 2 * (coords[ps[0]][1] + coords[ps[15]][1]) +
+ 3 * (coords[ps[11]][1] + coords[ps[1]][1])) / 9
+ ]);
+ ps[10] = coords.length;
+ coords.push([
+ (-4 * coords[ps[15]][0] - coords[ps[0]][0] +
+ 6 * (coords[ps[11]][0] + coords[ps[14]][0]) -
+ 2 * (coords[ps[12]][0] + coords[ps[3]][0]) +
+ 3 * (coords[ps[2]][0] + coords[ps[8]][0])) / 9,
+ (-4 * coords[ps[15]][1] - coords[ps[0]][1] +
+ 6 * (coords[ps[11]][1] + coords[ps[14]][1]) -
+ 2 * (coords[ps[12]][1] + coords[ps[3]][1]) +
+ 3 * (coords[ps[2]][1] + coords[ps[8]][1])) / 9
+ ]);
+ mesh.figures.push({
+ type: 'patch',
+ coords: new Int32Array(ps), // making copies of ps and cs
+ colors: new Int32Array(cs)
+ });
+ }
+ }
+
+ function decodeType7Shading(mesh, reader) {
+ var coords = mesh.coords;
+ var colors = mesh.colors;
+ var ps = new Int32Array(16); // p00, p10, ..., p30, p01, ..., p33
+ var cs = new Int32Array(4); // c00, c30, c03, c33
+ while (reader.hasData) {
+ var f = reader.readFlag();
+ assert(0 <= f && f <= 3, 'Unknown type7 flag');
+ var i, ii;
+ var pi = coords.length;
+ for (i = 0, ii = (f !== 0 ? 12 : 16); i < ii; i++) {
+ coords.push(reader.readCoordinate());
+ }
+ var ci = colors.length;
+ for (i = 0, ii = (f !== 0 ? 2 : 4); i < ii; i++) {
+ colors.push(reader.readComponents());
+ }
+ var tmp1, tmp2, tmp3, tmp4;
+ switch (f) {
+ case 0:
+ ps[12] = pi + 3; ps[13] = pi + 4; ps[14] = pi + 5; ps[15] = pi + 6;
+ ps[ 8] = pi + 2; ps[ 9] = pi + 13; ps[10] = pi + 14; ps[11] = pi + 7;
+ ps[ 4] = pi + 1; ps[ 5] = pi + 12; ps[ 6] = pi + 15; ps[ 7] = pi + 8;
+ ps[ 0] = pi; ps[ 1] = pi + 11; ps[ 2] = pi + 10; ps[ 3] = pi + 9;
+ cs[2] = ci + 1; cs[3] = ci + 2;
+ cs[0] = ci; cs[1] = ci + 3;
+ break;
+ case 1:
+ tmp1 = ps[12]; tmp2 = ps[13]; tmp3 = ps[14]; tmp4 = ps[15];
+ ps[12] = pi + 5; ps[13] = pi + 4; ps[14] = pi + 3; ps[15] = pi + 2;
+ ps[ 8] = pi + 6; ps[ 9] = pi + 11; ps[10] = pi + 10; ps[11] = pi + 1;
+ ps[ 4] = pi + 7; ps[ 5] = pi + 8; ps[ 6] = pi + 9; ps[ 7] = pi;
+ ps[ 0] = tmp1; ps[ 1] = tmp2; ps[ 2] = tmp3; ps[ 3] = tmp4;
+ tmp1 = cs[2]; tmp2 = cs[3];
+ cs[2] = ci + 1; cs[3] = ci;
+ cs[0] = tmp1; cs[1] = tmp2;
+ break;
+ case 2:
+ ps[12] = ps[15]; ps[13] = pi + 7; ps[14] = pi + 6; ps[15] = pi + 5;
+ ps[ 8] = ps[11]; ps[ 9] = pi + 8; ps[10] = pi + 11; ps[11] = pi + 4;
+ ps[ 4] = ps[7]; ps[ 5] = pi + 9; ps[ 6] = pi + 10; ps[ 7] = pi + 3;
+ ps[ 0] = ps[3]; ps[ 1] = pi; ps[ 2] = pi + 1; ps[ 3] = pi + 2;
+ cs[2] = cs[3]; cs[3] = ci + 1;
+ cs[0] = cs[1]; cs[1] = ci;
+ break;
+ case 3:
+ ps[12] = ps[0]; ps[13] = ps[1]; ps[14] = ps[2]; ps[15] = ps[3];
+ ps[ 8] = pi; ps[ 9] = pi + 9; ps[10] = pi + 8; ps[11] = pi + 7;
+ ps[ 4] = pi + 1; ps[ 5] = pi + 10; ps[ 6] = pi + 11; ps[ 7] = pi + 6;
+ ps[ 0] = pi + 2; ps[ 1] = pi + 3; ps[ 2] = pi + 4; ps[ 3] = pi + 5;
+ cs[2] = cs[0]; cs[3] = cs[1];
+ cs[0] = ci; cs[1] = ci + 1;
+ break;
+ }
+ mesh.figures.push({
+ type: 'patch',
+ coords: new Int32Array(ps), // making copies of ps and cs
+ colors: new Int32Array(cs)
+ });
+ }
+ }
+
+ function updateBounds(mesh) {
+ var minX = mesh.coords[0][0], minY = mesh.coords[0][1],
+ maxX = minX, maxY = minY;
+ for (var i = 1, ii = mesh.coords.length; i < ii; i++) {
+ var x = mesh.coords[i][0], y = mesh.coords[i][1];
+ minX = minX > x ? x : minX;
+ minY = minY > y ? y : minY;
+ maxX = maxX < x ? x : maxX;
+ maxY = maxY < y ? y : maxY;
+ }
+ mesh.bounds = [minX, minY, maxX, maxY];
+ }
+
+ function packData(mesh) {
+ var i, ii, j, jj;
+
+ var coords = mesh.coords;
+ var coordsPacked = new Float32Array(coords.length * 2);
+ for (i = 0, j = 0, ii = coords.length; i < ii; i++) {
+ var xy = coords[i];
+ coordsPacked[j++] = xy[0];
+ coordsPacked[j++] = xy[1];
+ }
+ mesh.coords = coordsPacked;
+
+ var colors = mesh.colors;
+ var colorsPacked = new Uint8Array(colors.length * 3);
+ for (i = 0, j = 0, ii = colors.length; i < ii; i++) {
+ var c = colors[i];
+ colorsPacked[j++] = c[0];
+ colorsPacked[j++] = c[1];
+ colorsPacked[j++] = c[2];
+ }
+ mesh.colors = colorsPacked;
+
+ var figures = mesh.figures;
+ for (i = 0, ii = figures.length; i < ii; i++) {
+ var figure = figures[i], ps = figure.coords, cs = figure.colors;
+ for (j = 0, jj = ps.length; j < jj; j++) {
+ ps[j] *= 2;
+ cs[j] *= 3;
+ }
+ }
+ }
+
+ function Mesh(stream, matrix, xref, res) {
+ assert(isStream(stream), 'Mesh data is not a stream');
+ var dict = stream.dict;
+ this.matrix = matrix;
+ this.shadingType = dict.get('ShadingType');
+ this.type = 'Pattern';
+ this.bbox = dict.get('BBox');
+ var cs = dict.get('ColorSpace', 'CS');
+ cs = ColorSpace.parse(cs, xref, res);
+ this.cs = cs;
+ this.background = dict.has('Background') ?
+ cs.getRgb(dict.get('Background'), 0) : null;
+
+ var fnObj = dict.get('Function');
+ var fn = fnObj ? PDFFunction.parseArray(xref, fnObj) : null;
+
+ this.coords = [];
+ this.colors = [];
+ this.figures = [];
+
+ var decodeContext = {
+ bitsPerCoordinate: dict.get('BitsPerCoordinate'),
+ bitsPerComponent: dict.get('BitsPerComponent'),
+ bitsPerFlag: dict.get('BitsPerFlag'),
+ decode: dict.get('Decode'),
+ colorFn: fn,
+ colorSpace: cs,
+ numComps: fn ? 1 : cs.numComps
+ };
+ var reader = new MeshStreamReader(stream, decodeContext);
+
+ var patchMesh = false;
+ switch (this.shadingType) {
+ case PatternType.FREE_FORM_MESH:
+ decodeType4Shading(this, reader);
+ break;
+ case PatternType.LATTICE_FORM_MESH:
+ var verticesPerRow = dict.get('VerticesPerRow') | 0;
+ assert(verticesPerRow >= 2, 'Invalid VerticesPerRow');
+ decodeType5Shading(this, reader, verticesPerRow);
+ break;
+ case PatternType.COONS_PATCH_MESH:
+ decodeType6Shading(this, reader);
+ patchMesh = true;
+ break;
+ case PatternType.TENSOR_PATCH_MESH:
+ decodeType7Shading(this, reader);
+ patchMesh = true;
+ break;
+ default:
+ error('Unsupported mesh type.');
+ break;
+ }
+
+ if (patchMesh) {
+ // dirty bounds calculation for determining, how dense shall be triangles
+ updateBounds(this);
+ for (var i = 0, ii = this.figures.length; i < ii; i++) {
+ buildFigureFromPatch(this, i);
+ }
+ }
+ // calculate bounds
+ updateBounds(this);
+
+ packData(this);
+ }
+
+ Mesh.prototype = {
+ getIR: function Mesh_getIR() {
+ return ['Mesh', this.shadingType, this.coords, this.colors, this.figures,
+ this.bounds, this.matrix, this.bbox, this.background];
+ }
+ };
+
+ return Mesh;
+})();
+
+Shadings.Dummy = (function DummyClosure() {
+ function Dummy() {
+ this.type = 'Pattern';
+ }
+
+ Dummy.prototype = {
+ getIR: function Dummy_getIR() {
+ return ['Dummy'];
+ }
+ };
+ return Dummy;
+})();
+
+function getTilingPatternIR(operatorList, dict, args) {
+ var matrix = dict.get('Matrix');
+ var bbox = dict.get('BBox');
+ var xstep = dict.get('XStep');
+ var ystep = dict.get('YStep');
+ var paintType = dict.get('PaintType');
+ var tilingType = dict.get('TilingType');
+
+ return [
+ 'TilingPattern', args, operatorList, matrix, bbox, xstep, ystep,
+ paintType, tilingType
+ ];
+}
+
+
+var PartialEvaluator = (function PartialEvaluatorClosure() {
+ function PartialEvaluator(pdfManager, xref, handler, pageIndex,
+ uniquePrefix, idCounters, fontCache) {
+ this.pdfManager = pdfManager;
+ this.xref = xref;
+ this.handler = handler;
+ this.pageIndex = pageIndex;
+ this.uniquePrefix = uniquePrefix;
+ this.idCounters = idCounters;
+ this.fontCache = fontCache;
+ }
+
+ // Trying to minimize Date.now() usage and check every 100 time
+ var TIME_SLOT_DURATION_MS = 20;
+ var CHECK_TIME_EVERY = 100;
+ function TimeSlotManager() {
+ this.reset();
+ }
+ TimeSlotManager.prototype = {
+ check: function TimeSlotManager_check() {
+ if (++this.checked < CHECK_TIME_EVERY) {
+ return false;
+ }
+ this.checked = 0;
+ return this.endTime <= Date.now();
+ },
+ reset: function TimeSlotManager_reset() {
+ this.endTime = Date.now() + TIME_SLOT_DURATION_MS;
+ this.checked = 0;
+ }
+ };
+
+ var deferred = Promise.resolve();
+
+ var TILING_PATTERN = 1, SHADING_PATTERN = 2;
+
+ PartialEvaluator.prototype = {
+ hasBlendModes: function PartialEvaluator_hasBlendModes(resources) {
+ if (!isDict(resources)) {
+ return false;
+ }
+
+ var processed = Object.create(null);
+ if (resources.objId) {
+ processed[resources.objId] = true;
+ }
+
+ var nodes = [resources];
+ while (nodes.length) {
+ var key;
+ var node = nodes.shift();
+ // First check the current resources for blend modes.
+ var graphicStates = node.get('ExtGState');
+ if (isDict(graphicStates)) {
+ graphicStates = graphicStates.getAll();
+ for (key in graphicStates) {
+ var graphicState = graphicStates[key];
+ var bm = graphicState['BM'];
+ if (isName(bm) && bm.name !== 'Normal') {
+ return true;
+ }
+ }
+ }
+ // Descend into the XObjects to look for more resources and blend modes.
+ var xObjects = node.get('XObject');
+ if (!isDict(xObjects)) {
+ continue;
+ }
+ xObjects = xObjects.getAll();
+ for (key in xObjects) {
+ var xObject = xObjects[key];
+ if (!isStream(xObject)) {
+ continue;
+ }
+ if (xObject.dict.objId) {
+ if (processed[xObject.dict.objId]) {
+ // stream has objId and is processed already
+ continue;
+ }
+ processed[xObject.dict.objId] = true;
+ }
+ var xResources = xObject.dict.get('Resources');
+ // Checking objId to detect an infinite loop.
+ if (isDict(xResources) &&
+ (!xResources.objId || !processed[xResources.objId])) {
+ nodes.push(xResources);
+ if (xResources.objId) {
+ processed[xResources.objId] = true;
+ }
+ }
+ }
+ }
+ return false;
+ },
+
+ buildFormXObject: function PartialEvaluator_buildFormXObject(resources,
+ xobj, smask,
+ operatorList,
+ initialState) {
+ var matrix = xobj.dict.get('Matrix');
+ var bbox = xobj.dict.get('BBox');
+ var group = xobj.dict.get('Group');
+ if (group) {
+ var groupOptions = {
+ matrix: matrix,
+ bbox: bbox,
+ smask: smask,
+ isolated: false,
+ knockout: false
+ };
+
+ var groupSubtype = group.get('S');
+ var colorSpace;
+ if (isName(groupSubtype) && groupSubtype.name === 'Transparency') {
+ groupOptions.isolated = (group.get('I') || false);
+ groupOptions.knockout = (group.get('K') || false);
+ colorSpace = (group.has('CS') ?
+ ColorSpace.parse(group.get('CS'), this.xref, resources) : null);
+ }
+
+ if (smask && smask.backdrop) {
+ colorSpace = colorSpace || ColorSpace.singletons.rgb;
+ smask.backdrop = colorSpace.getRgb(smask.backdrop, 0);
+ }
+
+ operatorList.addOp(OPS.beginGroup, [groupOptions]);
+ }
+
+ operatorList.addOp(OPS.paintFormXObjectBegin, [matrix, bbox]);
+
+ return this.getOperatorList(xobj,
+ (xobj.dict.get('Resources') || resources), operatorList, initialState).
+ then(function () {
+ operatorList.addOp(OPS.paintFormXObjectEnd, []);
+
+ if (group) {
+ operatorList.addOp(OPS.endGroup, [groupOptions]);
+ }
+ });
+ },
+
+ buildPaintImageXObject:
+ function PartialEvaluator_buildPaintImageXObject(resources, image,
+ inline, operatorList,
+ cacheKey, imageCache) {
+ var self = this;
+ var dict = image.dict;
+ var w = dict.get('Width', 'W');
+ var h = dict.get('Height', 'H');
+
+ if (!(w && isNum(w)) || !(h && isNum(h))) {
+ warn('Image dimensions are missing, or not numbers.');
+ return;
+ }
+ if (PDFJS.maxImageSize !== -1 && w * h > PDFJS.maxImageSize) {
+ warn('Image exceeded maximum allowed size and was removed.');
+ return;
+ }
+
+ var imageMask = (dict.get('ImageMask', 'IM') || false);
+ var imgData, args;
+ if (imageMask) {
+ // This depends on a tmpCanvas being filled with the
+ // current fillStyle, such that processing the pixel
+ // data can't be done here. Instead of creating a
+ // complete PDFImage, only read the information needed
+ // for later.
+
+ var width = dict.get('Width', 'W');
+ var height = dict.get('Height', 'H');
+ var bitStrideLength = (width + 7) >> 3;
+ var imgArray = image.getBytes(bitStrideLength * height);
+ var decode = dict.get('Decode', 'D');
+ var inverseDecode = (!!decode && decode[0] > 0);
+
+ imgData = PDFImage.createMask(imgArray, width, height,
+ image instanceof DecodeStream,
+ inverseDecode);
+ imgData.cached = true;
+ args = [imgData];
+ operatorList.addOp(OPS.paintImageMaskXObject, args);
+ if (cacheKey) {
+ imageCache[cacheKey] = {
+ fn: OPS.paintImageMaskXObject,
+ args: args
+ };
+ }
+ return;
+ }
+
+ var softMask = (dict.get('SMask', 'SM') || false);
+ var mask = (dict.get('Mask') || false);
+
+ var SMALL_IMAGE_DIMENSIONS = 200;
+ // Inlining small images into the queue as RGB data
+ if (inline && !softMask && !mask && !(image instanceof JpegStream) &&
+ (w + h) < SMALL_IMAGE_DIMENSIONS) {
+ var imageObj = new PDFImage(this.xref, resources, image,
+ inline, null, null);
+ // We force the use of RGBA_32BPP images here, because we can't handle
+ // any other kind.
+ imgData = imageObj.createImageData(/* forceRGBA = */ true);
+ operatorList.addOp(OPS.paintInlineImageXObject, [imgData]);
+ return;
+ }
+
+ // If there is no imageMask, create the PDFImage and a lot
+ // of image processing can be done here.
+ var uniquePrefix = (this.uniquePrefix || '');
+ var objId = 'img_' + uniquePrefix + (++this.idCounters.obj);
+ operatorList.addDependency(objId);
+ args = [objId, w, h];
+
+ if (!softMask && !mask && image instanceof JpegStream &&
+ image.isNativelySupported(this.xref, resources)) {
+ // These JPEGs don't need any more processing so we can just send it.
+ operatorList.addOp(OPS.paintJpegXObject, args);
+ this.handler.send('obj',
+ [objId, this.pageIndex, 'JpegStream', image.getIR()]);
+ return;
+ }
+
+ PDFImage.buildImage(self.handler, self.xref, resources, image, inline).
+ then(function(imageObj) {
+ var imgData = imageObj.createImageData(/* forceRGBA = */ false);
+ self.handler.send('obj', [objId, self.pageIndex, 'Image', imgData],
+ [imgData.data.buffer]);
+ }).then(undefined, function (reason) {
+ warn('Unable to decode image: ' + reason);
+ self.handler.send('obj', [objId, self.pageIndex, 'Image', null]);
+ });
+
+ operatorList.addOp(OPS.paintImageXObject, args);
+ if (cacheKey) {
+ imageCache[cacheKey] = {
+ fn: OPS.paintImageXObject,
+ args: args
+ };
+ }
+ },
+
+ handleSMask: function PartialEvaluator_handleSmask(smask, resources,
+ operatorList,
+ stateManager) {
+ var smaskContent = smask.get('G');
+ var smaskOptions = {
+ subtype: smask.get('S').name,
+ backdrop: smask.get('BC')
+ };
+ return this.buildFormXObject(resources, smaskContent, smaskOptions,
+ operatorList, stateManager.state.clone());
+ },
+
+ handleTilingType:
+ function PartialEvaluator_handleTilingType(fn, args, resources,
+ pattern, patternDict,
+ operatorList) {
+ // Create an IR of the pattern code.
+ var tilingOpList = new OperatorList();
+ return this.getOperatorList(pattern,
+ (patternDict.get('Resources') || resources), tilingOpList).
+ then(function () {
+ // Add the dependencies to the parent operator list so they are
+ // resolved before sub operator list is executed synchronously.
+ operatorList.addDependencies(tilingOpList.dependencies);
+ operatorList.addOp(fn, getTilingPatternIR({
+ fnArray: tilingOpList.fnArray,
+ argsArray: tilingOpList.argsArray
+ }, patternDict, args));
+ });
+ },
+
+ handleSetFont:
+ function PartialEvaluator_handleSetFont(resources, fontArgs, fontRef,
+ operatorList, state) {
+ // TODO(mack): Not needed?
+ var fontName;
+ if (fontArgs) {
+ fontArgs = fontArgs.slice();
+ fontName = fontArgs[0].name;
+ }
+
+ var self = this;
+ return this.loadFont(fontName, fontRef, this.xref, resources).then(
+ function (translated) {
+ if (!translated.font.isType3Font) {
+ return translated;
+ }
+ return translated.loadType3Data(self, resources, operatorList).then(
+ function () {
+ return translated;
+ });
+ }).then(function (translated) {
+ state.font = translated.font;
+ translated.send(self.handler);
+ return translated.loadedName;
+ });
+ },
+
+ handleText: function PartialEvaluator_handleText(chars, state) {
+ var font = state.font;
+ var glyphs = font.charsToGlyphs(chars);
+ var isAddToPathSet = !!(state.textRenderingMode &
+ TextRenderingMode.ADD_TO_PATH_FLAG);
+ if (font.data && (isAddToPathSet || PDFJS.disableFontFace)) {
+ var buildPath = function (fontChar) {
+ if (!font.renderer.hasBuiltPath(fontChar)) {
+ var path = font.renderer.getPathJs(fontChar);
+ this.handler.send('commonobj', [
+ font.loadedName + '_path_' + fontChar,
+ 'FontPath',
+ path
+ ]);
+ }
+ }.bind(this);
+
+ for (var i = 0, ii = glyphs.length; i < ii; i++) {
+ var glyph = glyphs[i];
+ if (glyph === null) {
+ continue;
+ }
+ buildPath(glyph.fontChar);
+
+ // If the glyph has an accent we need to build a path for its
+ // fontChar too, otherwise CanvasGraphics_paintChar will fail.
+ var accent = glyph.accent;
+ if (accent && accent.fontChar) {
+ buildPath(accent.fontChar);
+ }
+ }
+ }
+
+ return glyphs;
+ },
+
+ setGState: function PartialEvaluator_setGState(resources, gState,
+ operatorList, xref,
+ stateManager) {
+ // This array holds the converted/processed state data.
+ var gStateObj = [];
+ var gStateMap = gState.map;
+ var self = this;
+ var promise = Promise.resolve();
+ for (var key in gStateMap) {
+ var value = gStateMap[key];
+ switch (key) {
+ case 'Type':
+ break;
+ case 'LW':
+ case 'LC':
+ case 'LJ':
+ case 'ML':
+ case 'D':
+ case 'RI':
+ case 'FL':
+ case 'CA':
+ case 'ca':
+ gStateObj.push([key, value]);
+ break;
+ case 'Font':
+ promise = promise.then(function () {
+ return self.handleSetFont(resources, null, value[0],
+ operatorList, stateManager.state).
+ then(function (loadedName) {
+ operatorList.addDependency(loadedName);
+ gStateObj.push([key, [loadedName, value[1]]]);
+ });
+ });
+ break;
+ case 'BM':
+ gStateObj.push([key, value]);
+ break;
+ case 'SMask':
+ if (isName(value) && value.name === 'None') {
+ gStateObj.push([key, false]);
+ break;
+ }
+ var dict = xref.fetchIfRef(value);
+ if (isDict(dict)) {
+ promise = promise.then(function () {
+ return self.handleSMask(dict, resources, operatorList,
+ stateManager);
+ });
+ gStateObj.push([key, true]);
+ } else {
+ warn('Unsupported SMask type');
+ }
+
+ break;
+ // Only generate info log messages for the following since
+ // they are unlikely to have a big impact on the rendering.
+ case 'OP':
+ case 'op':
+ case 'OPM':
+ case 'BG':
+ case 'BG2':
+ case 'UCR':
+ case 'UCR2':
+ case 'TR':
+ case 'TR2':
+ case 'HT':
+ case 'SM':
+ case 'SA':
+ case 'AIS':
+ case 'TK':
+ // TODO implement these operators.
+ info('graphic state operator ' + key);
+ break;
+ default:
+ info('Unknown graphic state operator ' + key);
+ break;
+ }
+ }
+ return promise.then(function () {
+ if (gStateObj.length >= 0) {
+ operatorList.addOp(OPS.setGState, [gStateObj]);
+ }
+ });
+ },
+
+ loadFont: function PartialEvaluator_loadFont(fontName, font, xref,
+ resources) {
+
+ function errorFont() {
+ return Promise.resolve(new TranslatedFont('g_font_error',
+ new ErrorFont('Font ' + fontName + ' is not available'), font));
+ }
+ var fontRef;
+ if (font) { // Loading by ref.
+ assert(isRef(font));
+ fontRef = font;
+ } else { // Loading by name.
+ var fontRes = resources.get('Font');
+ if (fontRes) {
+ fontRef = fontRes.getRaw(fontName);
+ } else {
+ warn('fontRes not available');
+ return errorFont();
+ }
+ }
+ if (!fontRef) {
+ warn('fontRef not available');
+ return errorFont();
+ }
+
+ if (this.fontCache.has(fontRef)) {
+ return this.fontCache.get(fontRef);
+ }
+
+ font = xref.fetchIfRef(fontRef);
+ if (!isDict(font)) {
+ return errorFont();
+ }
+
+ // We are holding font.translated references just for fontRef that are not
+ // dictionaries (Dict). See explanation below.
+ if (font.translated) {
+ return font.translated;
+ }
+
+ var fontCapability = createPromiseCapability();
+
+ var preEvaluatedFont = this.preEvaluateFont(font, xref);
+ var descriptor = preEvaluatedFont.descriptor;
+ var fontID = fontRef.num + '_' + fontRef.gen;
+ if (isDict(descriptor)) {
+ if (!descriptor.fontAliases) {
+ descriptor.fontAliases = Object.create(null);
+ }
+
+ var fontAliases = descriptor.fontAliases;
+ var hash = preEvaluatedFont.hash;
+ if (fontAliases[hash]) {
+ var aliasFontRef = fontAliases[hash].aliasRef;
+ if (aliasFontRef && this.fontCache.has(aliasFontRef)) {
+ this.fontCache.putAlias(fontRef, aliasFontRef);
+ return this.fontCache.get(fontRef);
+ }
+ }
+
+ if (!fontAliases[hash]) {
+ fontAliases[hash] = {
+ fontID: Font.getFontID()
+ };
+ }
+
+ fontAliases[hash].aliasRef = fontRef;
+ fontID = fontAliases[hash].fontID;
+ }
+
+ // Workaround for bad PDF generators that don't reference fonts
+ // properly, i.e. by not using an object identifier.
+ // Check if the fontRef is a Dict (as opposed to a standard object),
+ // in which case we don't cache the font and instead reference it by
+ // fontName in font.loadedName below.
+ var fontRefIsDict = isDict(fontRef);
+ if (!fontRefIsDict) {
+ this.fontCache.put(fontRef, fontCapability.promise);
+ }
+
+ // Keep track of each font we translated so the caller can
+ // load them asynchronously before calling display on a page.
+ font.loadedName = 'g_font_' + (fontRefIsDict ?
+ fontName.replace(/\W/g, '') : fontID);
+
+ font.translated = fontCapability.promise;
+
+ // TODO move promises into translate font
+ var translatedPromise;
+ try {
+ translatedPromise = Promise.resolve(
+ this.translateFont(preEvaluatedFont, xref));
+ } catch (e) {
+ translatedPromise = Promise.reject(e);
+ }
+
+ translatedPromise.then(function (translatedFont) {
+ if (translatedFont.fontType !== undefined) {
+ var xrefFontStats = xref.stats.fontTypes;
+ xrefFontStats[translatedFont.fontType] = true;
+ }
+
+ fontCapability.resolve(new TranslatedFont(font.loadedName,
+ translatedFont, font));
+ }, function (reason) {
+ // TODO fontCapability.reject?
+ UnsupportedManager.notify(UNSUPPORTED_FEATURES.font);
+
+ try {
+ // error, but it's still nice to have font type reported
+ var descriptor = preEvaluatedFont.descriptor;
+ var fontFile3 = descriptor && descriptor.get('FontFile3');
+ var subtype = fontFile3 && fontFile3.get('Subtype');
+ var fontType = getFontType(preEvaluatedFont.type,
+ subtype && subtype.name);
+ var xrefFontStats = xref.stats.fontTypes;
+ xrefFontStats[fontType] = true;
+ } catch (ex) { }
+
+ fontCapability.resolve(new TranslatedFont(font.loadedName,
+ new ErrorFont(reason instanceof Error ? reason.message : reason),
+ font));
+ });
+ return fontCapability.promise;
+ },
+
+ buildPath: function PartialEvaluator_buildPath(operatorList, fn, args) {
+ var lastIndex = operatorList.length - 1;
+ if (!args) {
+ args = [];
+ }
+ if (lastIndex < 0 ||
+ operatorList.fnArray[lastIndex] !== OPS.constructPath) {
+ operatorList.addOp(OPS.constructPath, [[fn], args]);
+ } else {
+ var opArgs = operatorList.argsArray[lastIndex];
+ opArgs[0].push(fn);
+ Array.prototype.push.apply(opArgs[1], args);
+ }
+ },
+
+ handleColorN: function PartialEvaluator_handleColorN(operatorList, fn, args,
+ cs, patterns, resources, xref) {
+ // compile tiling patterns
+ var patternName = args[args.length - 1];
+ // SCN/scn applies patterns along with normal colors
+ var pattern;
+ if (isName(patternName) &&
+ (pattern = patterns.get(patternName.name))) {
+ var dict = (isStream(pattern) ? pattern.dict : pattern);
+ var typeNum = dict.get('PatternType');
+
+ if (typeNum === TILING_PATTERN) {
+ var color = cs.base ? cs.base.getRgb(args, 0) : null;
+ return this.handleTilingType(fn, color, resources, pattern,
+ dict, operatorList);
+ } else if (typeNum === SHADING_PATTERN) {
+ var shading = dict.get('Shading');
+ var matrix = dict.get('Matrix');
+ pattern = Pattern.parseShading(shading, matrix, xref, resources);
+ operatorList.addOp(fn, pattern.getIR());
+ return Promise.resolve();
+ } else {
+ return Promise.reject('Unknown PatternType: ' + typeNum);
+ }
+ }
+ // TODO shall we fail here?
+ operatorList.addOp(fn, args);
+ return Promise.resolve();
+ },
+
+ getOperatorList: function PartialEvaluator_getOperatorList(stream,
+ resources,
+ operatorList,
+ initialState) {
+
+ var self = this;
+ var xref = this.xref;
+ var imageCache = {};
+
+ assert(operatorList);
+
+ resources = (resources || Dict.empty);
+ var xobjs = (resources.get('XObject') || Dict.empty);
+ var patterns = (resources.get('Pattern') || Dict.empty);
+ var stateManager = new StateManager(initialState || new EvalState());
+ var preprocessor = new EvaluatorPreprocessor(stream, xref, stateManager);
+ var timeSlotManager = new TimeSlotManager();
+
+ return new Promise(function next(resolve, reject) {
+ timeSlotManager.reset();
+ var stop, operation = {}, i, ii, cs;
+ while (!(stop = timeSlotManager.check())) {
+ // The arguments parsed by read() are used beyond this loop, so we
+ // cannot reuse the same array on each iteration. Therefore we pass
+ // in |null| as the initial value (see the comment on
+ // EvaluatorPreprocessor_read() for why).
+ operation.args = null;
+ if (!(preprocessor.read(operation))) {
+ break;
+ }
+ var args = operation.args;
+ var fn = operation.fn;
+
+ switch (fn | 0) {
+ case OPS.paintXObject:
+ if (args[0].code) {
+ break;
+ }
+ // eagerly compile XForm objects
+ var name = args[0].name;
+ if (imageCache[name] !== undefined) {
+ operatorList.addOp(imageCache[name].fn, imageCache[name].args);
+ args = null;
+ continue;
+ }
+
+ var xobj = xobjs.get(name);
+ if (xobj) {
+ assert(isStream(xobj), 'XObject should be a stream');
+
+ var type = xobj.dict.get('Subtype');
+ assert(isName(type),
+ 'XObject should have a Name subtype');
+
+ if (type.name === 'Form') {
+ stateManager.save();
+ return self.buildFormXObject(resources, xobj, null,
+ operatorList,
+ stateManager.state.clone()).
+ then(function () {
+ stateManager.restore();
+ next(resolve, reject);
+ }, reject);
+ } else if (type.name === 'Image') {
+ self.buildPaintImageXObject(resources, xobj, false,
+ operatorList, name, imageCache);
+ args = null;
+ continue;
+ } else if (type.name === 'PS') {
+ // PostScript XObjects are unused when viewing documents.
+ // See section 4.7.1 of Adobe's PDF reference.
+ info('Ignored XObject subtype PS');
+ continue;
+ } else {
+ error('Unhandled XObject subtype ' + type.name);
+ }
+ }
+ break;
+ case OPS.setFont:
+ var fontSize = args[1];
+ // eagerly collect all fonts
+ return self.handleSetFont(resources, args, null,
+ operatorList, stateManager.state).
+ then(function (loadedName) {
+ operatorList.addDependency(loadedName);
+ operatorList.addOp(OPS.setFont, [loadedName, fontSize]);
+ next(resolve, reject);
+ }, reject);
+ case OPS.endInlineImage:
+ var cacheKey = args[0].cacheKey;
+ if (cacheKey) {
+ var cacheEntry = imageCache[cacheKey];
+ if (cacheEntry !== undefined) {
+ operatorList.addOp(cacheEntry.fn, cacheEntry.args);
+ args = null;
+ continue;
+ }
+ }
+ self.buildPaintImageXObject(resources, args[0], true,
+ operatorList, cacheKey, imageCache);
+ args = null;
+ continue;
+ case OPS.showText:
+ args[0] = self.handleText(args[0], stateManager.state);
+ break;
+ case OPS.showSpacedText:
+ var arr = args[0];
+ var combinedGlyphs = [];
+ var arrLength = arr.length;
+ for (i = 0; i < arrLength; ++i) {
+ var arrItem = arr[i];
+ if (isString(arrItem)) {
+ Array.prototype.push.apply(combinedGlyphs,
+ self.handleText(arrItem, stateManager.state));
+ } else if (isNum(arrItem)) {
+ combinedGlyphs.push(arrItem);
+ }
+ }
+ args[0] = combinedGlyphs;
+ fn = OPS.showText;
+ break;
+ case OPS.nextLineShowText:
+ operatorList.addOp(OPS.nextLine);
+ args[0] = self.handleText(args[0], stateManager.state);
+ fn = OPS.showText;
+ break;
+ case OPS.nextLineSetSpacingShowText:
+ operatorList.addOp(OPS.nextLine);
+ operatorList.addOp(OPS.setWordSpacing, [args.shift()]);
+ operatorList.addOp(OPS.setCharSpacing, [args.shift()]);
+ args[0] = self.handleText(args[0], stateManager.state);
+ fn = OPS.showText;
+ break;
+ case OPS.setTextRenderingMode:
+ stateManager.state.textRenderingMode = args[0];
+ break;
+
+ case OPS.setFillColorSpace:
+ stateManager.state.fillColorSpace =
+ ColorSpace.parse(args[0], xref, resources);
+ continue;
+ case OPS.setStrokeColorSpace:
+ stateManager.state.strokeColorSpace =
+ ColorSpace.parse(args[0], xref, resources);
+ continue;
+ case OPS.setFillColor:
+ cs = stateManager.state.fillColorSpace;
+ args = cs.getRgb(args, 0);
+ fn = OPS.setFillRGBColor;
+ break;
+ case OPS.setStrokeColor:
+ cs = stateManager.state.strokeColorSpace;
+ args = cs.getRgb(args, 0);
+ fn = OPS.setStrokeRGBColor;
+ break;
+ case OPS.setFillGray:
+ stateManager.state.fillColorSpace = ColorSpace.singletons.gray;
+ args = ColorSpace.singletons.gray.getRgb(args, 0);
+ fn = OPS.setFillRGBColor;
+ break;
+ case OPS.setStrokeGray:
+ stateManager.state.strokeColorSpace = ColorSpace.singletons.gray;
+ args = ColorSpace.singletons.gray.getRgb(args, 0);
+ fn = OPS.setStrokeRGBColor;
+ break;
+ case OPS.setFillCMYKColor:
+ stateManager.state.fillColorSpace = ColorSpace.singletons.cmyk;
+ args = ColorSpace.singletons.cmyk.getRgb(args, 0);
+ fn = OPS.setFillRGBColor;
+ break;
+ case OPS.setStrokeCMYKColor:
+ stateManager.state.strokeColorSpace = ColorSpace.singletons.cmyk;
+ args = ColorSpace.singletons.cmyk.getRgb(args, 0);
+ fn = OPS.setStrokeRGBColor;
+ break;
+ case OPS.setFillRGBColor:
+ stateManager.state.fillColorSpace = ColorSpace.singletons.rgb;
+ args = ColorSpace.singletons.rgb.getRgb(args, 0);
+ break;
+ case OPS.setStrokeRGBColor:
+ stateManager.state.strokeColorSpace = ColorSpace.singletons.rgb;
+ args = ColorSpace.singletons.rgb.getRgb(args, 0);
+ break;
+ case OPS.setFillColorN:
+ cs = stateManager.state.fillColorSpace;
+ if (cs.name === 'Pattern') {
+ return self.handleColorN(operatorList, OPS.setFillColorN,
+ args, cs, patterns, resources, xref).then(function() {
+ next(resolve, reject);
+ }, reject);
+ }
+ args = cs.getRgb(args, 0);
+ fn = OPS.setFillRGBColor;
+ break;
+ case OPS.setStrokeColorN:
+ cs = stateManager.state.strokeColorSpace;
+ if (cs.name === 'Pattern') {
+ return self.handleColorN(operatorList, OPS.setStrokeColorN,
+ args, cs, patterns, resources, xref).then(function() {
+ next(resolve, reject);
+ }, reject);
+ }
+ args = cs.getRgb(args, 0);
+ fn = OPS.setStrokeRGBColor;
+ break;
+
+ case OPS.shadingFill:
+ var shadingRes = resources.get('Shading');
+ if (!shadingRes) {
+ error('No shading resource found');
+ }
+
+ var shading = shadingRes.get(args[0].name);
+ if (!shading) {
+ error('No shading object found');
+ }
+
+ var shadingFill = Pattern.parseShading(shading, null, xref,
+ resources);
+ var patternIR = shadingFill.getIR();
+ args = [patternIR];
+ fn = OPS.shadingFill;
+ break;
+ case OPS.setGState:
+ var dictName = args[0];
+ var extGState = resources.get('ExtGState');
+
+ if (!isDict(extGState) || !extGState.has(dictName.name)) {
+ break;
+ }
+
+ var gState = extGState.get(dictName.name);
+ return self.setGState(resources, gState, operatorList, xref,
+ stateManager).then(function() {
+ next(resolve, reject);
+ }, reject);
+ case OPS.moveTo:
+ case OPS.lineTo:
+ case OPS.curveTo:
+ case OPS.curveTo2:
+ case OPS.curveTo3:
+ case OPS.closePath:
+ self.buildPath(operatorList, fn, args);
+ continue;
+ case OPS.rectangle:
+ self.buildPath(operatorList, fn, args);
+ continue;
+ }
+ operatorList.addOp(fn, args);
+ }
+ if (stop) {
+ deferred.then(function () {
+ next(resolve, reject);
+ });
+ return;
+ }
+ // Some PDFs don't close all restores inside object/form.
+ // Closing those for them.
+ for (i = 0, ii = preprocessor.savedStatesDepth; i < ii; i++) {
+ operatorList.addOp(OPS.restore, []);
+ }
+ resolve();
+ });
+ },
+
+ getTextContent: function PartialEvaluator_getTextContent(stream, resources,
+ stateManager) {
+
+ stateManager = (stateManager || new StateManager(new TextState()));
+
+ var textContent = {
+ items: [],
+ styles: Object.create(null)
+ };
+ var bidiTexts = textContent.items;
+ var SPACE_FACTOR = 0.3;
+ var MULTI_SPACE_FACTOR = 1.5;
+
+ var self = this;
+ var xref = this.xref;
+
+ resources = (xref.fetchIfRef(resources) || Dict.empty);
+
+ // The xobj is parsed iff it's needed, e.g. if there is a `DO` cmd.
+ var xobjs = null;
+ var xobjsCache = {};
+
+ var preprocessor = new EvaluatorPreprocessor(stream, xref, stateManager);
+
+ var textState;
+
+ function newTextChunk() {
+ var font = textState.font;
+ if (!(font.loadedName in textContent.styles)) {
+ textContent.styles[font.loadedName] = {
+ fontFamily: font.fallbackName,
+ ascent: font.ascent,
+ descent: font.descent,
+ vertical: font.vertical
+ };
+ }
+ return {
+ // |str| is initially an array which we push individual chars to, and
+ // then runBidi() overwrites it with the final string.
+ str: [],
+ dir: null,
+ width: 0,
+ height: 0,
+ transform: null,
+ fontName: font.loadedName
+ };
+ }
+
+ function runBidi(textChunk) {
+ var str = textChunk.str.join('');
+ var bidiResult = PDFJS.bidi(str, -1, textState.font.vertical);
+ textChunk.str = bidiResult.str;
+ textChunk.dir = bidiResult.dir;
+ return textChunk;
+ }
+
+ function handleSetFont(fontName, fontRef) {
+ return self.loadFont(fontName, fontRef, xref, resources).
+ then(function (translated) {
+ textState.font = translated.font;
+ textState.fontMatrix = translated.font.fontMatrix ||
+ FONT_IDENTITY_MATRIX;
+ });
+ }
+
+ function buildTextGeometry(chars, textChunk) {
+ var font = textState.font;
+ textChunk = textChunk || newTextChunk();
+ if (!textChunk.transform) {
+ // 9.4.4 Text Space Details
+ var tsm = [textState.fontSize * textState.textHScale, 0,
+ 0, textState.fontSize,
+ 0, textState.textRise];
+ var trm = textChunk.transform = Util.transform(textState.ctm,
+ Util.transform(textState.textMatrix, tsm));
+ if (!font.vertical) {
+ textChunk.height = Math.sqrt(trm[2] * trm[2] + trm[3] * trm[3]);
+ } else {
+ textChunk.width = Math.sqrt(trm[0] * trm[0] + trm[1] * trm[1]);
+ }
+ }
+ var width = 0;
+ var height = 0;
+ var glyphs = font.charsToGlyphs(chars);
+ var defaultVMetrics = font.defaultVMetrics;
+ for (var i = 0; i < glyphs.length; i++) {
+ var glyph = glyphs[i];
+ if (!glyph) { // Previous glyph was a space.
+ width += textState.wordSpacing * textState.textHScale;
+ continue;
+ }
+ var vMetricX = null;
+ var vMetricY = null;
+ var glyphWidth = null;
+ if (font.vertical) {
+ if (glyph.vmetric) {
+ glyphWidth = glyph.vmetric[0];
+ vMetricX = glyph.vmetric[1];
+ vMetricY = glyph.vmetric[2];
+ } else {
+ glyphWidth = glyph.width;
+ vMetricX = glyph.width * 0.5;
+ vMetricY = defaultVMetrics[2];
+ }
+ } else {
+ glyphWidth = glyph.width;
+ }
+
+ var glyphUnicode = glyph.unicode;
+ if (NormalizedUnicodes[glyphUnicode] !== undefined) {
+ glyphUnicode = NormalizedUnicodes[glyphUnicode];
+ }
+ glyphUnicode = reverseIfRtl(glyphUnicode);
+
+ // The following will calculate the x and y of the individual glyphs.
+ // if (font.vertical) {
+ // tsm[4] -= vMetricX * Math.abs(textState.fontSize) *
+ // textState.fontMatrix[0];
+ // tsm[5] -= vMetricY * textState.fontSize *
+ // textState.fontMatrix[0];
+ // }
+ // var trm = Util.transform(textState.textMatrix, tsm);
+ // var pt = Util.applyTransform([trm[4], trm[5]], textState.ctm);
+ // var x = pt[0];
+ // var y = pt[1];
+
+ var tx = 0;
+ var ty = 0;
+ if (!font.vertical) {
+ var w0 = glyphWidth * textState.fontMatrix[0];
+ tx = (w0 * textState.fontSize + textState.charSpacing) *
+ textState.textHScale;
+ width += tx;
+ } else {
+ var w1 = glyphWidth * textState.fontMatrix[0];
+ ty = w1 * textState.fontSize + textState.charSpacing;
+ height += ty;
+ }
+ textState.translateTextMatrix(tx, ty);
+
+ textChunk.str.push(glyphUnicode);
+ }
+
+ var a = textState.textLineMatrix[0];
+ var b = textState.textLineMatrix[1];
+ var scaleLineX = Math.sqrt(a * a + b * b);
+ a = textState.ctm[0];
+ b = textState.ctm[1];
+ var scaleCtmX = Math.sqrt(a * a + b * b);
+ if (!font.vertical) {
+ textChunk.width += width * scaleCtmX * scaleLineX;
+ } else {
+ textChunk.height += Math.abs(height * scaleCtmX * scaleLineX);
+ }
+ return textChunk;
+ }
+
+ var timeSlotManager = new TimeSlotManager();
+
+ return new Promise(function next(resolve, reject) {
+ timeSlotManager.reset();
+ var stop, operation = {}, args = [];
+ while (!(stop = timeSlotManager.check())) {
+ // The arguments parsed by read() are not used beyond this loop, so
+ // we can reuse the same array on every iteration, thus avoiding
+ // unnecessary allocations.
+ args.length = 0;
+ operation.args = args;
+ if (!(preprocessor.read(operation))) {
+ break;
+ }
+ textState = stateManager.state;
+ var fn = operation.fn;
+ args = operation.args;
+
+ switch (fn | 0) {
+ case OPS.setFont:
+ textState.fontSize = args[1];
+ return handleSetFont(args[0].name).then(function() {
+ next(resolve, reject);
+ }, reject);
+ case OPS.setTextRise:
+ textState.textRise = args[0];
+ break;
+ case OPS.setHScale:
+ textState.textHScale = args[0] / 100;
+ break;
+ case OPS.setLeading:
+ textState.leading = args[0];
+ break;
+ case OPS.moveText:
+ textState.translateTextLineMatrix(args[0], args[1]);
+ textState.textMatrix = textState.textLineMatrix.slice();
+ break;
+ case OPS.setLeadingMoveText:
+ textState.leading = -args[1];
+ textState.translateTextLineMatrix(args[0], args[1]);
+ textState.textMatrix = textState.textLineMatrix.slice();
+ break;
+ case OPS.nextLine:
+ textState.carriageReturn();
+ break;
+ case OPS.setTextMatrix:
+ textState.setTextMatrix(args[0], args[1], args[2], args[3],
+ args[4], args[5]);
+ textState.setTextLineMatrix(args[0], args[1], args[2], args[3],
+ args[4], args[5]);
+ break;
+ case OPS.setCharSpacing:
+ textState.charSpacing = args[0];
+ break;
+ case OPS.setWordSpacing:
+ textState.wordSpacing = args[0];
+ break;
+ case OPS.beginText:
+ textState.textMatrix = IDENTITY_MATRIX.slice();
+ textState.textLineMatrix = IDENTITY_MATRIX.slice();
+ break;
+ case OPS.showSpacedText:
+ var items = args[0];
+ var textChunk = newTextChunk();
+ var offset;
+ for (var j = 0, jj = items.length; j < jj; j++) {
+ if (typeof items[j] === 'string') {
+ buildTextGeometry(items[j], textChunk);
+ } else {
+ var val = items[j] / 1000;
+ if (!textState.font.vertical) {
+ offset = -val * textState.fontSize * textState.textHScale *
+ textState.textMatrix[0];
+ textState.translateTextMatrix(offset, 0);
+ textChunk.width += offset;
+ } else {
+ offset = -val * textState.fontSize *
+ textState.textMatrix[3];
+ textState.translateTextMatrix(0, offset);
+ textChunk.height += offset;
+ }
+ if (items[j] < 0 && textState.font.spaceWidth > 0) {
+ var fakeSpaces = -items[j] / textState.font.spaceWidth;
+ if (fakeSpaces > MULTI_SPACE_FACTOR) {
+ fakeSpaces = Math.round(fakeSpaces);
+ while (fakeSpaces--) {
+ textChunk.str.push(' ');
+ }
+ } else if (fakeSpaces > SPACE_FACTOR) {
+ textChunk.str.push(' ');
+ }
+ }
+ }
+ }
+ bidiTexts.push(runBidi(textChunk));
+ break;
+ case OPS.showText:
+ bidiTexts.push(runBidi(buildTextGeometry(args[0])));
+ break;
+ case OPS.nextLineShowText:
+ textState.carriageReturn();
+ bidiTexts.push(runBidi(buildTextGeometry(args[0])));
+ break;
+ case OPS.nextLineSetSpacingShowText:
+ textState.wordSpacing = args[0];
+ textState.charSpacing = args[1];
+ textState.carriageReturn();
+ bidiTexts.push(runBidi(buildTextGeometry(args[2])));
+ break;
+ case OPS.paintXObject:
+ if (args[0].code) {
+ break;
+ }
+
+ if (!xobjs) {
+ xobjs = (resources.get('XObject') || Dict.empty);
+ }
+
+ var name = args[0].name;
+ if (xobjsCache.key === name) {
+ if (xobjsCache.texts) {
+ Util.appendToArray(bidiTexts, xobjsCache.texts.items);
+ Util.extendObj(textContent.styles, xobjsCache.texts.styles);
+ }
+ break;
+ }
+
+ var xobj = xobjs.get(name);
+ if (!xobj) {
+ break;
+ }
+ assert(isStream(xobj), 'XObject should be a stream');
+
+ var type = xobj.dict.get('Subtype');
+ assert(isName(type),
+ 'XObject should have a Name subtype');
+
+ if ('Form' !== type.name) {
+ xobjsCache.key = name;
+ xobjsCache.texts = null;
+ break;
+ }
+
+ stateManager.save();
+ var matrix = xobj.dict.get('Matrix');
+ if (isArray(matrix) && matrix.length === 6) {
+ stateManager.transform(matrix);
+ }
+
+ return self.getTextContent(xobj,
+ xobj.dict.get('Resources') || resources, stateManager).
+ then(function (formTextContent) {
+ Util.appendToArray(bidiTexts, formTextContent.items);
+ Util.extendObj(textContent.styles, formTextContent.styles);
+ stateManager.restore();
+
+ xobjsCache.key = name;
+ xobjsCache.texts = formTextContent;
+
+ next(resolve, reject);
+ }, reject);
+ case OPS.setGState:
+ var dictName = args[0];
+ var extGState = resources.get('ExtGState');
+
+ if (!isDict(extGState) || !extGState.has(dictName.name)) {
+ break;
+ }
+
+ var gsStateMap = extGState.get(dictName.name);
+ var gsStateFont = null;
+ for (var key in gsStateMap) {
+ if (key === 'Font') {
+ assert(!gsStateFont);
+ gsStateFont = gsStateMap[key];
+ }
+ }
+ if (gsStateFont) {
+ textState.fontSize = gsStateFont[1];
+ return handleSetFont(gsStateFont[0]).then(function() {
+ next(resolve, reject);
+ }, reject);
+ }
+ break;
+ } // switch
+ } // while
+ if (stop) {
+ deferred.then(function () {
+ next(resolve, reject);
+ });
+ return;
+ }
+ resolve(textContent);
+ });
+ },
+
+ extractDataStructures: function
+ partialEvaluatorExtractDataStructures(dict, baseDict,
+ xref, properties) {
+ // 9.10.2
+ var toUnicode = (dict.get('ToUnicode') || baseDict.get('ToUnicode'));
+ if (toUnicode) {
+ properties.toUnicode = this.readToUnicode(toUnicode);
+ }
+ if (properties.composite) {
+ // CIDSystemInfo helps to match CID to glyphs
+ var cidSystemInfo = dict.get('CIDSystemInfo');
+ if (isDict(cidSystemInfo)) {
+ properties.cidSystemInfo = {
+ registry: cidSystemInfo.get('Registry'),
+ ordering: cidSystemInfo.get('Ordering'),
+ supplement: cidSystemInfo.get('Supplement')
+ };
+ }
+
+ var cidToGidMap = dict.get('CIDToGIDMap');
+ if (isStream(cidToGidMap)) {
+ properties.cidToGidMap = this.readCidToGidMap(cidToGidMap);
+ }
+ }
+
+ // Based on 9.6.6 of the spec the encoding can come from multiple places
+ // and depends on the font type. The base encoding and differences are
+ // read here, but the encoding that is actually used is chosen during
+ // glyph mapping in the font.
+ // TODO: Loading the built in encoding in the font would allow the
+ // differences to be merged in here not require us to hold on to it.
+ var differences = [];
+ var baseEncodingName = null;
+ var encoding;
+ if (dict.has('Encoding')) {
+ encoding = dict.get('Encoding');
+ if (isDict(encoding)) {
+ baseEncodingName = encoding.get('BaseEncoding');
+ baseEncodingName = (isName(baseEncodingName) ?
+ baseEncodingName.name : null);
+ // Load the differences between the base and original
+ if (encoding.has('Differences')) {
+ var diffEncoding = encoding.get('Differences');
+ var index = 0;
+ for (var j = 0, jj = diffEncoding.length; j < jj; j++) {
+ var data = diffEncoding[j];
+ if (isNum(data)) {
+ index = data;
+ } else {
+ differences[index++] = data.name;
+ }
+ }
+ }
+ } else if (isName(encoding)) {
+ baseEncodingName = encoding.name;
+ } else {
+ error('Encoding is not a Name nor a Dict');
+ }
+ // According to table 114 if the encoding is a named encoding it must be
+ // one of these predefined encodings.
+ if ((baseEncodingName !== 'MacRomanEncoding' &&
+ baseEncodingName !== 'MacExpertEncoding' &&
+ baseEncodingName !== 'WinAnsiEncoding')) {
+ baseEncodingName = null;
+ }
+ }
+
+ if (baseEncodingName) {
+ properties.defaultEncoding = Encodings[baseEncodingName].slice();
+ } else {
+ encoding = (properties.type === 'TrueType' ?
+ Encodings.WinAnsiEncoding : Encodings.StandardEncoding);
+ // The Symbolic attribute can be misused for regular fonts
+ // Heuristic: we have to check if the font is a standard one also
+ if (!!(properties.flags & FontFlags.Symbolic)) {
+ encoding = Encodings.MacRomanEncoding;
+ if (!properties.file) {
+ if (/Symbol/i.test(properties.name)) {
+ encoding = Encodings.SymbolSetEncoding;
+ } else if (/Dingbats/i.test(properties.name)) {
+ encoding = Encodings.ZapfDingbatsEncoding;
+ }
+ }
+ }
+ properties.defaultEncoding = encoding;
+ }
+
+ properties.differences = differences;
+ properties.baseEncodingName = baseEncodingName;
+ properties.dict = dict;
+ },
+
+ readToUnicode: function PartialEvaluator_readToUnicode(toUnicode) {
+ var cmap, cmapObj = toUnicode;
+ if (isName(cmapObj)) {
+ cmap = CMapFactory.create(cmapObj,
+ { url: PDFJS.cMapUrl, packed: PDFJS.cMapPacked }, null);
+ if (cmap instanceof IdentityCMap) {
+ return new IdentityToUnicodeMap(0, 0xFFFF);
+ }
+ return new ToUnicodeMap(cmap.getMap());
+ } else if (isStream(cmapObj)) {
+ cmap = CMapFactory.create(cmapObj,
+ { url: PDFJS.cMapUrl, packed: PDFJS.cMapPacked }, null);
+ if (cmap instanceof IdentityCMap) {
+ return new IdentityToUnicodeMap(0, 0xFFFF);
+ }
+ cmap = cmap.getMap();
+ // Convert UTF-16BE
+ // NOTE: cmap can be a sparse array, so use forEach instead of for(;;)
+ // to iterate over all keys.
+ cmap.forEach(function(token, i) {
+ var str = [];
+ for (var k = 0; k < token.length; k += 2) {
+ var w1 = (token.charCodeAt(k) << 8) | token.charCodeAt(k + 1);
+ if ((w1 & 0xF800) !== 0xD800) { // w1 < 0xD800 || w1 > 0xDFFF
+ str.push(w1);
+ continue;
+ }
+ k += 2;
+ var w2 = (token.charCodeAt(k) << 8) | token.charCodeAt(k + 1);
+ str.push(((w1 & 0x3ff) << 10) + (w2 & 0x3ff) + 0x10000);
+ }
+ cmap[i] = String.fromCharCode.apply(String, str);
+ });
+ return new ToUnicodeMap(cmap);
+ }
+ return null;
+ },
+
+ readCidToGidMap: function PartialEvaluator_readCidToGidMap(cidToGidStream) {
+ // Extract the encoding from the CIDToGIDMap
+ var glyphsData = cidToGidStream.getBytes();
+
+ // Set encoding 0 to later verify the font has an encoding
+ var result = [];
+ for (var j = 0, jj = glyphsData.length; j < jj; j++) {
+ var glyphID = (glyphsData[j++] << 8) | glyphsData[j];
+ if (glyphID === 0) {
+ continue;
+ }
+ var code = j >> 1;
+ result[code] = glyphID;
+ }
+ return result;
+ },
+
+ extractWidths: function PartialEvaluator_extractWidths(dict, xref,
+ descriptor,
+ properties) {
+ var glyphsWidths = [];
+ var defaultWidth = 0;
+ var glyphsVMetrics = [];
+ var defaultVMetrics;
+ var i, ii, j, jj, start, code, widths;
+ if (properties.composite) {
+ defaultWidth = dict.get('DW') || 1000;
+
+ widths = dict.get('W');
+ if (widths) {
+ for (i = 0, ii = widths.length; i < ii; i++) {
+ start = widths[i++];
+ code = xref.fetchIfRef(widths[i]);
+ if (isArray(code)) {
+ for (j = 0, jj = code.length; j < jj; j++) {
+ glyphsWidths[start++] = code[j];
+ }
+ } else {
+ var width = widths[++i];
+ for (j = start; j <= code; j++) {
+ glyphsWidths[j] = width;
+ }
+ }
+ }
+ }
+
+ if (properties.vertical) {
+ var vmetrics = (dict.get('DW2') || [880, -1000]);
+ defaultVMetrics = [vmetrics[1], defaultWidth * 0.5, vmetrics[0]];
+ vmetrics = dict.get('W2');
+ if (vmetrics) {
+ for (i = 0, ii = vmetrics.length; i < ii; i++) {
+ start = vmetrics[i++];
+ code = xref.fetchIfRef(vmetrics[i]);
+ if (isArray(code)) {
+ for (j = 0, jj = code.length; j < jj; j++) {
+ glyphsVMetrics[start++] = [code[j++], code[j++], code[j]];
+ }
+ } else {
+ var vmetric = [vmetrics[++i], vmetrics[++i], vmetrics[++i]];
+ for (j = start; j <= code; j++) {
+ glyphsVMetrics[j] = vmetric;
+ }
+ }
+ }
+ }
+ }
+ } else {
+ var firstChar = properties.firstChar;
+ widths = dict.get('Widths');
+ if (widths) {
+ j = firstChar;
+ for (i = 0, ii = widths.length; i < ii; i++) {
+ glyphsWidths[j++] = widths[i];
+ }
+ defaultWidth = (parseFloat(descriptor.get('MissingWidth')) || 0);
+ } else {
+ // Trying get the BaseFont metrics (see comment above).
+ var baseFontName = dict.get('BaseFont');
+ if (isName(baseFontName)) {
+ var metrics = this.getBaseFontMetrics(baseFontName.name);
+
+ glyphsWidths = this.buildCharCodeToWidth(metrics.widths,
+ properties);
+ defaultWidth = metrics.defaultWidth;
+ }
+ }
+ }
+
+ // Heuristic: detection of monospace font by checking all non-zero widths
+ var isMonospace = true;
+ var firstWidth = defaultWidth;
+ for (var glyph in glyphsWidths) {
+ var glyphWidth = glyphsWidths[glyph];
+ if (!glyphWidth) {
+ continue;
+ }
+ if (!firstWidth) {
+ firstWidth = glyphWidth;
+ continue;
+ }
+ if (firstWidth !== glyphWidth) {
+ isMonospace = false;
+ break;
+ }
+ }
+ if (isMonospace) {
+ properties.flags |= FontFlags.FixedPitch;
+ }
+
+ properties.defaultWidth = defaultWidth;
+ properties.widths = glyphsWidths;
+ properties.defaultVMetrics = defaultVMetrics;
+ properties.vmetrics = glyphsVMetrics;
+ },
+
+ isSerifFont: function PartialEvaluator_isSerifFont(baseFontName) {
+ // Simulating descriptor flags attribute
+ var fontNameWoStyle = baseFontName.split('-')[0];
+ return (fontNameWoStyle in serifFonts) ||
+ (fontNameWoStyle.search(/serif/gi) !== -1);
+ },
+
+ getBaseFontMetrics: function PartialEvaluator_getBaseFontMetrics(name) {
+ var defaultWidth = 0;
+ var widths = [];
+ var monospace = false;
+ var lookupName = (stdFontMap[name] || name);
+
+ if (!(lookupName in Metrics)) {
+ // Use default fonts for looking up font metrics if the passed
+ // font is not a base font
+ if (this.isSerifFont(name)) {
+ lookupName = 'Times-Roman';
+ } else {
+ lookupName = 'Helvetica';
+ }
+ }
+ var glyphWidths = Metrics[lookupName];
+
+ if (isNum(glyphWidths)) {
+ defaultWidth = glyphWidths;
+ monospace = true;
+ } else {
+ widths = glyphWidths;
+ }
+
+ return {
+ defaultWidth: defaultWidth,
+ monospace: monospace,
+ widths: widths
+ };
+ },
+
+ buildCharCodeToWidth:
+ function PartialEvaluator_bulildCharCodeToWidth(widthsByGlyphName,
+ properties) {
+ var widths = Object.create(null);
+ var differences = properties.differences;
+ var encoding = properties.defaultEncoding;
+ for (var charCode = 0; charCode < 256; charCode++) {
+ if (charCode in differences &&
+ widthsByGlyphName[differences[charCode]]) {
+ widths[charCode] = widthsByGlyphName[differences[charCode]];
+ continue;
+ }
+ if (charCode in encoding && widthsByGlyphName[encoding[charCode]]) {
+ widths[charCode] = widthsByGlyphName[encoding[charCode]];
+ continue;
+ }
+ }
+ return widths;
+ },
+
+ preEvaluateFont: function PartialEvaluator_preEvaluateFont(dict, xref) {
+ var baseDict = dict;
+ var type = dict.get('Subtype');
+ assert(isName(type), 'invalid font Subtype');
+
+ var composite = false;
+ var uint8array;
+ if (type.name === 'Type0') {
+ // If font is a composite
+ // - get the descendant font
+ // - set the type according to the descendant font
+ // - get the FontDescriptor from the descendant font
+ var df = dict.get('DescendantFonts');
+ if (!df) {
+ error('Descendant fonts are not specified');
+ }
+ dict = (isArray(df) ? xref.fetchIfRef(df[0]) : df);
+
+ type = dict.get('Subtype');
+ assert(isName(type), 'invalid font Subtype');
+ composite = true;
+ }
+
+ var descriptor = dict.get('FontDescriptor');
+ if (descriptor) {
+ var hash = new MurmurHash3_64();
+ var encoding = baseDict.getRaw('Encoding');
+ if (isName(encoding)) {
+ hash.update(encoding.name);
+ } else if (isRef(encoding)) {
+ hash.update(encoding.num + '_' + encoding.gen);
+ } else if (isDict(encoding)) {
+ var keys = encoding.getKeys();
+ for (var i = 0, ii = keys.length; i < ii; i++) {
+ var entry = encoding.getRaw(keys[i]);
+ if (isName(entry)) {
+ hash.update(entry.name);
+ } else if (isRef(entry)) {
+ hash.update(entry.num + '_' + entry.gen);
+ } else if (isArray(entry)) { // 'Differences' entry.
+ // Ideally we should check the contents of the array, but to avoid
+ // parsing it here and then again in |extractDataStructures|,
+ // we only use the array length for now (fixes bug1157493.pdf).
+ hash.update(entry.length.toString());
+ }
+ }
+ }
+
+ var toUnicode = dict.get('ToUnicode') || baseDict.get('ToUnicode');
+ if (isStream(toUnicode)) {
+ var stream = toUnicode.str || toUnicode;
+ uint8array = stream.buffer ?
+ new Uint8Array(stream.buffer.buffer, 0, stream.bufferLength) :
+ new Uint8Array(stream.bytes.buffer,
+ stream.start, stream.end - stream.start);
+ hash.update(uint8array);
+
+ } else if (isName(toUnicode)) {
+ hash.update(toUnicode.name);
+ }
+
+ var widths = dict.get('Widths') || baseDict.get('Widths');
+ if (widths) {
+ uint8array = new Uint8Array(new Uint32Array(widths).buffer);
+ hash.update(uint8array);
+ }
+ }
+
+ return {
+ descriptor: descriptor,
+ dict: dict,
+ baseDict: baseDict,
+ composite: composite,
+ type: type.name,
+ hash: hash ? hash.hexdigest() : ''
+ };
+ },
+
+ translateFont: function PartialEvaluator_translateFont(preEvaluatedFont,
+ xref) {
+ var baseDict = preEvaluatedFont.baseDict;
+ var dict = preEvaluatedFont.dict;
+ var composite = preEvaluatedFont.composite;
+ var descriptor = preEvaluatedFont.descriptor;
+ var type = preEvaluatedFont.type;
+ var maxCharIndex = (composite ? 0xFFFF : 0xFF);
+ var properties;
+
+ if (!descriptor) {
+ if (type === 'Type3') {
+ // FontDescriptor is only required for Type3 fonts when the document
+ // is a tagged pdf. Create a barbebones one to get by.
+ descriptor = new Dict(null);
+ descriptor.set('FontName', Name.get(type));
+ } else {
+ // Before PDF 1.5 if the font was one of the base 14 fonts, having a
+ // FontDescriptor was not required.
+ // This case is here for compatibility.
+ var baseFontName = dict.get('BaseFont');
+ if (!isName(baseFontName)) {
+ error('Base font is not specified');
+ }
+
+ // Using base font name as a font name.
+ baseFontName = baseFontName.name.replace(/[,_]/g, '-');
+ var metrics = this.getBaseFontMetrics(baseFontName);
+
+ // Simulating descriptor flags attribute
+ var fontNameWoStyle = baseFontName.split('-')[0];
+ var flags =
+ (this.isSerifFont(fontNameWoStyle) ? FontFlags.Serif : 0) |
+ (metrics.monospace ? FontFlags.FixedPitch : 0) |
+ (symbolsFonts[fontNameWoStyle] ? FontFlags.Symbolic :
+ FontFlags.Nonsymbolic);
+
+ properties = {
+ type: type,
+ name: baseFontName,
+ widths: metrics.widths,
+ defaultWidth: metrics.defaultWidth,
+ flags: flags,
+ firstChar: 0,
+ lastChar: maxCharIndex
+ };
+ this.extractDataStructures(dict, dict, xref, properties);
+ properties.widths = this.buildCharCodeToWidth(metrics.widths,
+ properties);
+ return new Font(baseFontName, null, properties);
+ }
+ }
+
+ // According to the spec if 'FontDescriptor' is declared, 'FirstChar',
+ // 'LastChar' and 'Widths' should exist too, but some PDF encoders seem
+ // to ignore this rule when a variant of a standart font is used.
+ // TODO Fill the width array depending on which of the base font this is
+ // a variant.
+ var firstChar = (dict.get('FirstChar') || 0);
+ var lastChar = (dict.get('LastChar') || maxCharIndex);
+
+ var fontName = descriptor.get('FontName');
+ var baseFont = dict.get('BaseFont');
+ // Some bad PDFs have a string as the font name.
+ if (isString(fontName)) {
+ fontName = Name.get(fontName);
+ }
+ if (isString(baseFont)) {
+ baseFont = Name.get(baseFont);
+ }
+
+ if (type !== 'Type3') {
+ var fontNameStr = fontName && fontName.name;
+ var baseFontStr = baseFont && baseFont.name;
+ if (fontNameStr !== baseFontStr) {
+ info('The FontDescriptor\'s FontName is "' + fontNameStr +
+ '" but should be the same as the Font\'s BaseFont "' +
+ baseFontStr + '"');
+ // Workaround for cases where e.g. fontNameStr = 'Arial' and
+ // baseFontStr = 'Arial,Bold' (needed when no font file is embedded).
+ if (fontNameStr && baseFontStr &&
+ baseFontStr.indexOf(fontNameStr) === 0) {
+ fontName = baseFont;
+ }
+ }
+ }
+ fontName = (fontName || baseFont);
+
+ assert(isName(fontName), 'invalid font name');
+
+ var fontFile = descriptor.get('FontFile', 'FontFile2', 'FontFile3');
+ if (fontFile) {
+ if (fontFile.dict) {
+ var subtype = fontFile.dict.get('Subtype');
+ if (subtype) {
+ subtype = subtype.name;
+ }
+ var length1 = fontFile.dict.get('Length1');
+ var length2 = fontFile.dict.get('Length2');
+ }
+ }
+
+ properties = {
+ type: type,
+ name: fontName.name,
+ subtype: subtype,
+ file: fontFile,
+ length1: length1,
+ length2: length2,
+ loadedName: baseDict.loadedName,
+ composite: composite,
+ wideChars: composite,
+ fixedPitch: false,
+ fontMatrix: (dict.get('FontMatrix') || FONT_IDENTITY_MATRIX),
+ firstChar: firstChar || 0,
+ lastChar: (lastChar || maxCharIndex),
+ bbox: descriptor.get('FontBBox'),
+ ascent: descriptor.get('Ascent'),
+ descent: descriptor.get('Descent'),
+ xHeight: descriptor.get('XHeight'),
+ capHeight: descriptor.get('CapHeight'),
+ flags: descriptor.get('Flags'),
+ italicAngle: descriptor.get('ItalicAngle'),
+ coded: false
+ };
+
+ if (composite) {
+ var cidEncoding = baseDict.get('Encoding');
+ if (isName(cidEncoding)) {
+ properties.cidEncoding = cidEncoding.name;
+ }
+ properties.cMap = CMapFactory.create(cidEncoding,
+ { url: PDFJS.cMapUrl, packed: PDFJS.cMapPacked }, null);
+ properties.vertical = properties.cMap.vertical;
+ }
+ this.extractDataStructures(dict, baseDict, xref, properties);
+ this.extractWidths(dict, xref, descriptor, properties);
+
+ if (type === 'Type3') {
+ properties.isType3Font = true;
+ }
+
+ return new Font(fontName.name, fontFile, properties);
+ }
+ };
+
+ return PartialEvaluator;
+})();
+
+var TranslatedFont = (function TranslatedFontClosure() {
+ function TranslatedFont(loadedName, font, dict) {
+ this.loadedName = loadedName;
+ this.font = font;
+ this.dict = dict;
+ this.type3Loaded = null;
+ this.sent = false;
+ }
+ TranslatedFont.prototype = {
+ send: function (handler) {
+ if (this.sent) {
+ return;
+ }
+ var fontData = this.font.exportData();
+ handler.send('commonobj', [
+ this.loadedName,
+ 'Font',
+ fontData
+ ]);
+ this.sent = true;
+ },
+ loadType3Data: function (evaluator, resources, parentOperatorList) {
+ assert(this.font.isType3Font);
+
+ if (this.type3Loaded) {
+ return this.type3Loaded;
+ }
+
+ var translatedFont = this.font;
+ var loadCharProcsPromise = Promise.resolve();
+ var charProcs = this.dict.get('CharProcs').getAll();
+ var fontResources = this.dict.get('Resources') || resources;
+ var charProcKeys = Object.keys(charProcs);
+ var charProcOperatorList = {};
+ for (var i = 0, n = charProcKeys.length; i < n; ++i) {
+ loadCharProcsPromise = loadCharProcsPromise.then(function (key) {
+ var glyphStream = charProcs[key];
+ var operatorList = new OperatorList();
+ return evaluator.getOperatorList(glyphStream, fontResources,
+ operatorList).then(function () {
+ charProcOperatorList[key] = operatorList.getIR();
+
+ // Add the dependencies to the parent operator list so they are
+ // resolved before sub operator list is executed synchronously.
+ parentOperatorList.addDependencies(operatorList.dependencies);
+ }, function (reason) {
+ warn('Type3 font resource \"' + key + '\" is not available');
+ var operatorList = new OperatorList();
+ charProcOperatorList[key] = operatorList.getIR();
+ });
+ }.bind(this, charProcKeys[i]));
+ }
+ this.type3Loaded = loadCharProcsPromise.then(function () {
+ translatedFont.charProcOperatorList = charProcOperatorList;
+ });
+ return this.type3Loaded;
+ }
+ };
+ return TranslatedFont;
+})();
+
+var OperatorList = (function OperatorListClosure() {
+ var CHUNK_SIZE = 1000;
+ var CHUNK_SIZE_ABOUT = CHUNK_SIZE - 5; // close to chunk size
+
+ function getTransfers(queue) {
+ var transfers = [];
+ var fnArray = queue.fnArray, argsArray = queue.argsArray;
+ for (var i = 0, ii = queue.length; i < ii; i++) {
+ switch (fnArray[i]) {
+ case OPS.paintInlineImageXObject:
+ case OPS.paintInlineImageXObjectGroup:
+ case OPS.paintImageMaskXObject:
+ var arg = argsArray[i][0]; // first param in imgData
+ if (!arg.cached) {
+ transfers.push(arg.data.buffer);
+ }
+ break;
+ }
+ }
+ return transfers;
+ }
+
+ function OperatorList(intent, messageHandler, pageIndex) {
+ this.messageHandler = messageHandler;
+ this.fnArray = [];
+ this.argsArray = [];
+ this.dependencies = {};
+ this.pageIndex = pageIndex;
+ this.intent = intent;
+ }
+
+ OperatorList.prototype = {
+ get length() {
+ return this.argsArray.length;
+ },
+
+ addOp: function(fn, args) {
+ this.fnArray.push(fn);
+ this.argsArray.push(args);
+ if (this.messageHandler) {
+ if (this.fnArray.length >= CHUNK_SIZE) {
+ this.flush();
+ } else if (this.fnArray.length >= CHUNK_SIZE_ABOUT &&
+ (fn === OPS.restore || fn === OPS.endText)) {
+ // heuristic to flush on boundary of restore or endText
+ this.flush();
+ }
+ }
+ },
+
+ addDependency: function(dependency) {
+ if (dependency in this.dependencies) {
+ return;
+ }
+ this.dependencies[dependency] = true;
+ this.addOp(OPS.dependency, [dependency]);
+ },
+
+ addDependencies: function(dependencies) {
+ for (var key in dependencies) {
+ this.addDependency(key);
+ }
+ },
+
+ addOpList: function(opList) {
+ Util.extendObj(this.dependencies, opList.dependencies);
+ for (var i = 0, ii = opList.length; i < ii; i++) {
+ this.addOp(opList.fnArray[i], opList.argsArray[i]);
+ }
+ },
+
+ getIR: function() {
+ return {
+ fnArray: this.fnArray,
+ argsArray: this.argsArray,
+ length: this.length
+ };
+ },
+
+ flush: function(lastChunk) {
+ if (this.intent !== 'oplist') {
+ new QueueOptimizer().optimize(this);
+ }
+ var transfers = getTransfers(this);
+ this.messageHandler.send('RenderPageChunk', {
+ operatorList: {
+ fnArray: this.fnArray,
+ argsArray: this.argsArray,
+ lastChunk: lastChunk,
+ length: this.length
+ },
+ pageIndex: this.pageIndex,
+ intent: this.intent
+ }, transfers);
+ this.dependencies = {};
+ this.fnArray.length = 0;
+ this.argsArray.length = 0;
+ }
+ };
+
+ return OperatorList;
+})();
+
+var StateManager = (function StateManagerClosure() {
+ function StateManager(initialState) {
+ this.state = initialState;
+ this.stateStack = [];
+ }
+ StateManager.prototype = {
+ save: function () {
+ var old = this.state;
+ this.stateStack.push(this.state);
+ this.state = old.clone();
+ },
+ restore: function () {
+ var prev = this.stateStack.pop();
+ if (prev) {
+ this.state = prev;
+ }
+ },
+ transform: function (args) {
+ this.state.ctm = Util.transform(this.state.ctm, args);
+ }
+ };
+ return StateManager;
+})();
+
+var TextState = (function TextStateClosure() {
+ function TextState() {
+ this.ctm = new Float32Array(IDENTITY_MATRIX);
+ this.fontSize = 0;
+ this.font = null;
+ this.fontMatrix = FONT_IDENTITY_MATRIX;
+ this.textMatrix = IDENTITY_MATRIX.slice();
+ this.textLineMatrix = IDENTITY_MATRIX.slice();
+ this.charSpacing = 0;
+ this.wordSpacing = 0;
+ this.leading = 0;
+ this.textHScale = 1;
+ this.textRise = 0;
+ }
+
+ TextState.prototype = {
+ setTextMatrix: function TextState_setTextMatrix(a, b, c, d, e, f) {
+ var m = this.textMatrix;
+ m[0] = a; m[1] = b; m[2] = c; m[3] = d; m[4] = e; m[5] = f;
+ },
+ setTextLineMatrix: function TextState_setTextMatrix(a, b, c, d, e, f) {
+ var m = this.textLineMatrix;
+ m[0] = a; m[1] = b; m[2] = c; m[3] = d; m[4] = e; m[5] = f;
+ },
+ translateTextMatrix: function TextState_translateTextMatrix(x, y) {
+ var m = this.textMatrix;
+ m[4] = m[0] * x + m[2] * y + m[4];
+ m[5] = m[1] * x + m[3] * y + m[5];
+ },
+ translateTextLineMatrix: function TextState_translateTextMatrix(x, y) {
+ var m = this.textLineMatrix;
+ m[4] = m[0] * x + m[2] * y + m[4];
+ m[5] = m[1] * x + m[3] * y + m[5];
+ },
+ calcRenderMatrix: function TextState_calcRendeMatrix(ctm) {
+ // 9.4.4 Text Space Details
+ var tsm = [this.fontSize * this.textHScale, 0,
+ 0, this.fontSize,
+ 0, this.textRise];
+ return Util.transform(ctm, Util.transform(this.textMatrix, tsm));
+ },
+ carriageReturn: function TextState_carriageReturn() {
+ this.translateTextLineMatrix(0, -this.leading);
+ this.textMatrix = this.textLineMatrix.slice();
+ },
+ clone: function TextState_clone() {
+ var clone = Object.create(this);
+ clone.textMatrix = this.textMatrix.slice();
+ clone.textLineMatrix = this.textLineMatrix.slice();
+ clone.fontMatrix = this.fontMatrix.slice();
+ return clone;
+ }
+ };
+ return TextState;
+})();
+
+var EvalState = (function EvalStateClosure() {
+ function EvalState() {
+ this.ctm = new Float32Array(IDENTITY_MATRIX);
+ this.font = null;
+ this.textRenderingMode = TextRenderingMode.FILL;
+ this.fillColorSpace = ColorSpace.singletons.gray;
+ this.strokeColorSpace = ColorSpace.singletons.gray;
+ }
+ EvalState.prototype = {
+ clone: function CanvasExtraState_clone() {
+ return Object.create(this);
+ },
+ };
+ return EvalState;
+})();
+
+var EvaluatorPreprocessor = (function EvaluatorPreprocessorClosure() {
+ // Specifies properties for each command
+ //
+ // If variableArgs === true: [0, `numArgs`] expected
+ // If variableArgs === false: exactly `numArgs` expected
+ var OP_MAP = {
+ // Graphic state
+ w: { id: OPS.setLineWidth, numArgs: 1, variableArgs: false },
+ J: { id: OPS.setLineCap, numArgs: 1, variableArgs: false },
+ j: { id: OPS.setLineJoin, numArgs: 1, variableArgs: false },
+ M: { id: OPS.setMiterLimit, numArgs: 1, variableArgs: false },
+ d: { id: OPS.setDash, numArgs: 2, variableArgs: false },
+ ri: { id: OPS.setRenderingIntent, numArgs: 1, variableArgs: false },
+ i: { id: OPS.setFlatness, numArgs: 1, variableArgs: false },
+ gs: { id: OPS.setGState, numArgs: 1, variableArgs: false },
+ q: { id: OPS.save, numArgs: 0, variableArgs: false },
+ Q: { id: OPS.restore, numArgs: 0, variableArgs: false },
+ cm: { id: OPS.transform, numArgs: 6, variableArgs: false },
+
+ // Path
+ m: { id: OPS.moveTo, numArgs: 2, variableArgs: false },
+ l: { id: OPS.lineTo, numArgs: 2, variableArgs: false },
+ c: { id: OPS.curveTo, numArgs: 6, variableArgs: false },
+ v: { id: OPS.curveTo2, numArgs: 4, variableArgs: false },
+ y: { id: OPS.curveTo3, numArgs: 4, variableArgs: false },
+ h: { id: OPS.closePath, numArgs: 0, variableArgs: false },
+ re: { id: OPS.rectangle, numArgs: 4, variableArgs: false },
+ S: { id: OPS.stroke, numArgs: 0, variableArgs: false },
+ s: { id: OPS.closeStroke, numArgs: 0, variableArgs: false },
+ f: { id: OPS.fill, numArgs: 0, variableArgs: false },
+ F: { id: OPS.fill, numArgs: 0, variableArgs: false },
+ 'f*': { id: OPS.eoFill, numArgs: 0, variableArgs: false },
+ B: { id: OPS.fillStroke, numArgs: 0, variableArgs: false },
+ 'B*': { id: OPS.eoFillStroke, numArgs: 0, variableArgs: false },
+ b: { id: OPS.closeFillStroke, numArgs: 0, variableArgs: false },
+ 'b*': { id: OPS.closeEOFillStroke, numArgs: 0, variableArgs: false },
+ n: { id: OPS.endPath, numArgs: 0, variableArgs: false },
+
+ // Clipping
+ W: { id: OPS.clip, numArgs: 0, variableArgs: false },
+ 'W*': { id: OPS.eoClip, numArgs: 0, variableArgs: false },
+
+ // Text
+ BT: { id: OPS.beginText, numArgs: 0, variableArgs: false },
+ ET: { id: OPS.endText, numArgs: 0, variableArgs: false },
+ Tc: { id: OPS.setCharSpacing, numArgs: 1, variableArgs: false },
+ Tw: { id: OPS.setWordSpacing, numArgs: 1, variableArgs: false },
+ Tz: { id: OPS.setHScale, numArgs: 1, variableArgs: false },
+ TL: { id: OPS.setLeading, numArgs: 1, variableArgs: false },
+ Tf: { id: OPS.setFont, numArgs: 2, variableArgs: false },
+ Tr: { id: OPS.setTextRenderingMode, numArgs: 1, variableArgs: false },
+ Ts: { id: OPS.setTextRise, numArgs: 1, variableArgs: false },
+ Td: { id: OPS.moveText, numArgs: 2, variableArgs: false },
+ TD: { id: OPS.setLeadingMoveText, numArgs: 2, variableArgs: false },
+ Tm: { id: OPS.setTextMatrix, numArgs: 6, variableArgs: false },
+ 'T*': { id: OPS.nextLine, numArgs: 0, variableArgs: false },
+ Tj: { id: OPS.showText, numArgs: 1, variableArgs: false },
+ TJ: { id: OPS.showSpacedText, numArgs: 1, variableArgs: false },
+ '\'': { id: OPS.nextLineShowText, numArgs: 1, variableArgs: false },
+ '"': { id: OPS.nextLineSetSpacingShowText, numArgs: 3,
+ variableArgs: false },
+
+ // Type3 fonts
+ d0: { id: OPS.setCharWidth, numArgs: 2, variableArgs: false },
+ d1: { id: OPS.setCharWidthAndBounds, numArgs: 6, variableArgs: false },
+
+ // Color
+ CS: { id: OPS.setStrokeColorSpace, numArgs: 1, variableArgs: false },
+ cs: { id: OPS.setFillColorSpace, numArgs: 1, variableArgs: false },
+ SC: { id: OPS.setStrokeColor, numArgs: 4, variableArgs: true },
+ SCN: { id: OPS.setStrokeColorN, numArgs: 33, variableArgs: true },
+ sc: { id: OPS.setFillColor, numArgs: 4, variableArgs: true },
+ scn: { id: OPS.setFillColorN, numArgs: 33, variableArgs: true },
+ G: { id: OPS.setStrokeGray, numArgs: 1, variableArgs: false },
+ g: { id: OPS.setFillGray, numArgs: 1, variableArgs: false },
+ RG: { id: OPS.setStrokeRGBColor, numArgs: 3, variableArgs: false },
+ rg: { id: OPS.setFillRGBColor, numArgs: 3, variableArgs: false },
+ K: { id: OPS.setStrokeCMYKColor, numArgs: 4, variableArgs: false },
+ k: { id: OPS.setFillCMYKColor, numArgs: 4, variableArgs: false },
+
+ // Shading
+ sh: { id: OPS.shadingFill, numArgs: 1, variableArgs: false },
+
+ // Images
+ BI: { id: OPS.beginInlineImage, numArgs: 0, variableArgs: false },
+ ID: { id: OPS.beginImageData, numArgs: 0, variableArgs: false },
+ EI: { id: OPS.endInlineImage, numArgs: 1, variableArgs: false },
+
+ // XObjects
+ Do: { id: OPS.paintXObject, numArgs: 1, variableArgs: false },
+ MP: { id: OPS.markPoint, numArgs: 1, variableArgs: false },
+ DP: { id: OPS.markPointProps, numArgs: 2, variableArgs: false },
+ BMC: { id: OPS.beginMarkedContent, numArgs: 1, variableArgs: false },
+ BDC: { id: OPS.beginMarkedContentProps, numArgs: 2,
+ variableArgs: false },
+ EMC: { id: OPS.endMarkedContent, numArgs: 0, variableArgs: false },
+
+ // Compatibility
+ BX: { id: OPS.beginCompat, numArgs: 0, variableArgs: false },
+ EX: { id: OPS.endCompat, numArgs: 0, variableArgs: false },
+
+ // (reserved partial commands for the lexer)
+ BM: null,
+ BD: null,
+ 'true': null,
+ fa: null,
+ fal: null,
+ fals: null,
+ 'false': null,
+ nu: null,
+ nul: null,
+ 'null': null
+ };
+
+ function EvaluatorPreprocessor(stream, xref, stateManager) {
+ // TODO(mduan): pass array of knownCommands rather than OP_MAP
+ // dictionary
+ this.parser = new Parser(new Lexer(stream, OP_MAP), false, xref);
+ this.stateManager = stateManager;
+ this.nonProcessedArgs = [];
+ }
+
+ EvaluatorPreprocessor.prototype = {
+ get savedStatesDepth() {
+ return this.stateManager.stateStack.length;
+ },
+
+ // |operation| is an object with two fields:
+ //
+ // - |fn| is an out param.
+ //
+ // - |args| is an inout param. On entry, it should have one of two values.
+ //
+ // - An empty array. This indicates that the caller is providing the
+ // array in which the args will be stored in. The caller should use
+ // this value if it can reuse a single array for each call to read().
+ //
+ // - |null|. This indicates that the caller needs this function to create
+ // the array in which any args are stored in. If there are zero args,
+ // this function will leave |operation.args| as |null| (thus avoiding
+ // allocations that would occur if we used an empty array to represent
+ // zero arguments). Otherwise, it will replace |null| with a new array
+ // containing the arguments. The caller should use this value if it
+ // cannot reuse an array for each call to read().
+ //
+ // These two modes are present because this function is very hot and so
+ // avoiding allocations where possible is worthwhile.
+ //
+ read: function EvaluatorPreprocessor_read(operation) {
+ var args = operation.args;
+ while (true) {
+ var obj = this.parser.getObj();
+ if (isCmd(obj)) {
+ var cmd = obj.cmd;
+ // Check that the command is valid
+ var opSpec = OP_MAP[cmd];
+ if (!opSpec) {
+ warn('Unknown command "' + cmd + '"');
+ continue;
+ }
+
+ var fn = opSpec.id;
+ var numArgs = opSpec.numArgs;
+ var argsLength = args !== null ? args.length : 0;
+
+ if (!opSpec.variableArgs) {
+ // Postscript commands can be nested, e.g. /F2 /GS2 gs 5.711 Tf
+ if (argsLength !== numArgs) {
+ var nonProcessedArgs = this.nonProcessedArgs;
+ while (argsLength > numArgs) {
+ nonProcessedArgs.push(args.shift());
+ argsLength--;
+ }
+ while (argsLength < numArgs && nonProcessedArgs.length !== 0) {
+ if (!args) {
+ args = [];
+ }
+ args.unshift(nonProcessedArgs.pop());
+ argsLength++;
+ }
+ }
+
+ if (argsLength < numArgs) {
+ // If we receive too few args, it's not possible to possible
+ // to execute the command, so skip the command
+ info('Command ' + fn + ': because expected ' +
+ numArgs + ' args, but received ' + argsLength +
+ ' args; skipping');
+ args = null;
+ continue;
+ }
+ } else if (argsLength > numArgs) {
+ info('Command ' + fn + ': expected [0,' + numArgs +
+ '] args, but received ' + argsLength + ' args');
+ }
+
+ // TODO figure out how to type-check vararg functions
+ this.preprocessCommand(fn, args);
+
+ operation.fn = fn;
+ operation.args = args;
+ return true;
+ } else {
+ if (isEOF(obj)) {
+ return false; // no more commands
+ }
+ // argument
+ if (obj !== null) {
+ if (!args) {
+ args = [];
+ }
+ args.push((obj instanceof Dict ? obj.getAll() : obj));
+ assert(args.length <= 33, 'Too many arguments');
+ }
+ }
+ }
+ },
+
+ preprocessCommand:
+ function EvaluatorPreprocessor_preprocessCommand(fn, args) {
+ switch (fn | 0) {
+ case OPS.save:
+ this.stateManager.save();
+ break;
+ case OPS.restore:
+ this.stateManager.restore();
+ break;
+ case OPS.transform:
+ this.stateManager.transform(args);
+ break;
+ }
+ }
+ };
+ return EvaluatorPreprocessor;
+})();
+
+var QueueOptimizer = (function QueueOptimizerClosure() {
+ function addState(parentState, pattern, fn) {
+ var state = parentState;
+ for (var i = 0, ii = pattern.length - 1; i < ii; i++) {
+ var item = pattern[i];
+ state = (state[item] || (state[item] = []));
+ }
+ state[pattern[pattern.length - 1]] = fn;
+ }
+
+ function handlePaintSolidColorImageMask(iFirstSave, count, fnArray,
+ argsArray) {
+ // Handles special case of mainly LaTeX documents which use image masks to
+ // draw lines with the current fill style.
+ // 'count' groups of (save, transform, paintImageMaskXObject, restore)+
+ // have been found at iFirstSave.
+ var iFirstPIMXO = iFirstSave + 2;
+ for (var i = 0; i < count; i++) {
+ var arg = argsArray[iFirstPIMXO + 4 * i];
+ var imageMask = arg.length === 1 && arg[0];
+ if (imageMask && imageMask.width === 1 && imageMask.height === 1 &&
+ (!imageMask.data.length ||
+ (imageMask.data.length === 1 && imageMask.data[0] === 0))) {
+ fnArray[iFirstPIMXO + 4 * i] = OPS.paintSolidColorImageMask;
+ continue;
+ }
+ break;
+ }
+ return count - i;
+ }
+
+ var InitialState = [];
+
+ // This replaces (save, transform, paintInlineImageXObject, restore)+
+ // sequences with one |paintInlineImageXObjectGroup| operation.
+ addState(InitialState,
+ [OPS.save, OPS.transform, OPS.paintInlineImageXObject, OPS.restore],
+ function foundInlineImageGroup(context) {
+ var MIN_IMAGES_IN_INLINE_IMAGES_BLOCK = 10;
+ var MAX_IMAGES_IN_INLINE_IMAGES_BLOCK = 200;
+ var MAX_WIDTH = 1000;
+ var IMAGE_PADDING = 1;
+
+ var fnArray = context.fnArray, argsArray = context.argsArray;
+ var curr = context.iCurr;
+ var iFirstSave = curr - 3;
+ var iFirstTransform = curr - 2;
+ var iFirstPIIXO = curr - 1;
+
+ // Look for the quartets.
+ var i = iFirstSave + 4;
+ var ii = fnArray.length;
+ while (i + 3 < ii) {
+ if (fnArray[i] !== OPS.save ||
+ fnArray[i + 1] !== OPS.transform ||
+ fnArray[i + 2] !== OPS.paintInlineImageXObject ||
+ fnArray[i + 3] !== OPS.restore) {
+ break; // ops don't match
+ }
+ i += 4;
+ }
+
+ // At this point, i is the index of the first op past the last valid
+ // quartet.
+ var count = Math.min((i - iFirstSave) / 4,
+ MAX_IMAGES_IN_INLINE_IMAGES_BLOCK);
+ if (count < MIN_IMAGES_IN_INLINE_IMAGES_BLOCK) {
+ return i;
+ }
+
+ // assuming that heights of those image is too small (~1 pixel)
+ // packing as much as possible by lines
+ var maxX = 0;
+ var map = [], maxLineHeight = 0;
+ var currentX = IMAGE_PADDING, currentY = IMAGE_PADDING;
+ var q;
+ for (q = 0; q < count; q++) {
+ var transform = argsArray[iFirstTransform + (q << 2)];
+ var img = argsArray[iFirstPIIXO + (q << 2)][0];
+ if (currentX + img.width > MAX_WIDTH) {
+ // starting new line
+ maxX = Math.max(maxX, currentX);
+ currentY += maxLineHeight + 2 * IMAGE_PADDING;
+ currentX = 0;
+ maxLineHeight = 0;
+ }
+ map.push({
+ transform: transform,
+ x: currentX, y: currentY,
+ w: img.width, h: img.height
+ });
+ currentX += img.width + 2 * IMAGE_PADDING;
+ maxLineHeight = Math.max(maxLineHeight, img.height);
+ }
+ var imgWidth = Math.max(maxX, currentX) + IMAGE_PADDING;
+ var imgHeight = currentY + maxLineHeight + IMAGE_PADDING;
+ var imgData = new Uint8Array(imgWidth * imgHeight * 4);
+ var imgRowSize = imgWidth << 2;
+ for (q = 0; q < count; q++) {
+ var data = argsArray[iFirstPIIXO + (q << 2)][0].data;
+ // Copy image by lines and extends pixels into padding.
+ var rowSize = map[q].w << 2;
+ var dataOffset = 0;
+ var offset = (map[q].x + map[q].y * imgWidth) << 2;
+ imgData.set(data.subarray(0, rowSize), offset - imgRowSize);
+ for (var k = 0, kk = map[q].h; k < kk; k++) {
+ imgData.set(data.subarray(dataOffset, dataOffset + rowSize), offset);
+ dataOffset += rowSize;
+ offset += imgRowSize;
+ }
+ imgData.set(data.subarray(dataOffset - rowSize, dataOffset), offset);
+ while (offset >= 0) {
+ data[offset - 4] = data[offset];
+ data[offset - 3] = data[offset + 1];
+ data[offset - 2] = data[offset + 2];
+ data[offset - 1] = data[offset + 3];
+ data[offset + rowSize] = data[offset + rowSize - 4];
+ data[offset + rowSize + 1] = data[offset + rowSize - 3];
+ data[offset + rowSize + 2] = data[offset + rowSize - 2];
+ data[offset + rowSize + 3] = data[offset + rowSize - 1];
+ offset -= imgRowSize;
+ }
+ }
+
+ // Replace queue items.
+ fnArray.splice(iFirstSave, count * 4, OPS.paintInlineImageXObjectGroup);
+ argsArray.splice(iFirstSave, count * 4,
+ [{ width: imgWidth, height: imgHeight, kind: ImageKind.RGBA_32BPP,
+ data: imgData }, map]);
+
+ return iFirstSave + 1;
+ });
+
+ // This replaces (save, transform, paintImageMaskXObject, restore)+
+ // sequences with one |paintImageMaskXObjectGroup| or one
+ // |paintImageMaskXObjectRepeat| operation.
+ addState(InitialState,
+ [OPS.save, OPS.transform, OPS.paintImageMaskXObject, OPS.restore],
+ function foundImageMaskGroup(context) {
+ var MIN_IMAGES_IN_MASKS_BLOCK = 10;
+ var MAX_IMAGES_IN_MASKS_BLOCK = 100;
+ var MAX_SAME_IMAGES_IN_MASKS_BLOCK = 1000;
+
+ var fnArray = context.fnArray, argsArray = context.argsArray;
+ var curr = context.iCurr;
+ var iFirstSave = curr - 3;
+ var iFirstTransform = curr - 2;
+ var iFirstPIMXO = curr - 1;
+
+ // Look for the quartets.
+ var i = iFirstSave + 4;
+ var ii = fnArray.length;
+ while (i + 3 < ii) {
+ if (fnArray[i] !== OPS.save ||
+ fnArray[i + 1] !== OPS.transform ||
+ fnArray[i + 2] !== OPS.paintImageMaskXObject ||
+ fnArray[i + 3] !== OPS.restore) {
+ break; // ops don't match
+ }
+ i += 4;
+ }
+
+ // At this point, i is the index of the first op past the last valid
+ // quartet.
+ var count = (i - iFirstSave) / 4;
+ count = handlePaintSolidColorImageMask(iFirstSave, count, fnArray,
+ argsArray);
+ if (count < MIN_IMAGES_IN_MASKS_BLOCK) {
+ return i;
+ }
+
+ var q;
+ var isSameImage = false;
+ var iTransform, transformArgs;
+ var firstPIMXOArg0 = argsArray[iFirstPIMXO][0];
+ if (argsArray[iFirstTransform][1] === 0 &&
+ argsArray[iFirstTransform][2] === 0) {
+ isSameImage = true;
+ var firstTransformArg0 = argsArray[iFirstTransform][0];
+ var firstTransformArg3 = argsArray[iFirstTransform][3];
+ iTransform = iFirstTransform + 4;
+ var iPIMXO = iFirstPIMXO + 4;
+ for (q = 1; q < count; q++, iTransform += 4, iPIMXO += 4) {
+ transformArgs = argsArray[iTransform];
+ if (argsArray[iPIMXO][0] !== firstPIMXOArg0 ||
+ transformArgs[0] !== firstTransformArg0 ||
+ transformArgs[1] !== 0 ||
+ transformArgs[2] !== 0 ||
+ transformArgs[3] !== firstTransformArg3) {
+ if (q < MIN_IMAGES_IN_MASKS_BLOCK) {
+ isSameImage = false;
+ } else {
+ count = q;
+ }
+ break; // different image or transform
+ }
+ }
+ }
+
+ if (isSameImage) {
+ count = Math.min(count, MAX_SAME_IMAGES_IN_MASKS_BLOCK);
+ var positions = new Float32Array(count * 2);
+ iTransform = iFirstTransform;
+ for (q = 0; q < count; q++, iTransform += 4) {
+ transformArgs = argsArray[iTransform];
+ positions[(q << 1)] = transformArgs[4];
+ positions[(q << 1) + 1] = transformArgs[5];
+ }
+
+ // Replace queue items.
+ fnArray.splice(iFirstSave, count * 4, OPS.paintImageMaskXObjectRepeat);
+ argsArray.splice(iFirstSave, count * 4,
+ [firstPIMXOArg0, firstTransformArg0, firstTransformArg3, positions]);
+ } else {
+ count = Math.min(count, MAX_IMAGES_IN_MASKS_BLOCK);
+ var images = [];
+ for (q = 0; q < count; q++) {
+ transformArgs = argsArray[iFirstTransform + (q << 2)];
+ var maskParams = argsArray[iFirstPIMXO + (q << 2)][0];
+ images.push({ data: maskParams.data, width: maskParams.width,
+ height: maskParams.height,
+ transform: transformArgs });
+ }
+
+ // Replace queue items.
+ fnArray.splice(iFirstSave, count * 4, OPS.paintImageMaskXObjectGroup);
+ argsArray.splice(iFirstSave, count * 4, [images]);
+ }
+
+ return iFirstSave + 1;
+ });
+
+ // This replaces (save, transform, paintImageXObject, restore)+ sequences
+ // with one paintImageXObjectRepeat operation, if the |transform| and
+ // |paintImageXObjectRepeat| ops are appropriate.
+ addState(InitialState,
+ [OPS.save, OPS.transform, OPS.paintImageXObject, OPS.restore],
+ function (context) {
+ var MIN_IMAGES_IN_BLOCK = 3;
+ var MAX_IMAGES_IN_BLOCK = 1000;
+
+ var fnArray = context.fnArray, argsArray = context.argsArray;
+ var curr = context.iCurr;
+ var iFirstSave = curr - 3;
+ var iFirstTransform = curr - 2;
+ var iFirstPIXO = curr - 1;
+ var iFirstRestore = curr;
+
+ if (argsArray[iFirstTransform][1] !== 0 ||
+ argsArray[iFirstTransform][2] !== 0) {
+ return iFirstRestore + 1; // transform has the wrong form
+ }
+
+ // Look for the quartets.
+ var firstPIXOArg0 = argsArray[iFirstPIXO][0];
+ var firstTransformArg0 = argsArray[iFirstTransform][0];
+ var firstTransformArg3 = argsArray[iFirstTransform][3];
+ var i = iFirstSave + 4;
+ var ii = fnArray.length;
+ while (i + 3 < ii) {
+ if (fnArray[i] !== OPS.save ||
+ fnArray[i + 1] !== OPS.transform ||
+ fnArray[i + 2] !== OPS.paintImageXObject ||
+ fnArray[i + 3] !== OPS.restore) {
+ break; // ops don't match
+ }
+ if (argsArray[i + 1][0] !== firstTransformArg0 ||
+ argsArray[i + 1][1] !== 0 ||
+ argsArray[i + 1][2] !== 0 ||
+ argsArray[i + 1][3] !== firstTransformArg3) {
+ break; // transforms don't match
+ }
+ if (argsArray[i + 2][0] !== firstPIXOArg0) {
+ break; // images don't match
+ }
+ i += 4;
+ }
+
+ // At this point, i is the index of the first op past the last valid
+ // quartet.
+ var count = Math.min((i - iFirstSave) / 4, MAX_IMAGES_IN_BLOCK);
+ if (count < MIN_IMAGES_IN_BLOCK) {
+ return i;
+ }
+
+ // Extract the (x,y) positions from all of the matching transforms.
+ var positions = new Float32Array(count * 2);
+ var iTransform = iFirstTransform;
+ for (var q = 0; q < count; q++, iTransform += 4) {
+ var transformArgs = argsArray[iTransform];
+ positions[(q << 1)] = transformArgs[4];
+ positions[(q << 1) + 1] = transformArgs[5];
+ }
+
+ // Replace queue items.
+ var args = [firstPIXOArg0, firstTransformArg0, firstTransformArg3,
+ positions];
+ fnArray.splice(iFirstSave, count * 4, OPS.paintImageXObjectRepeat);
+ argsArray.splice(iFirstSave, count * 4, args);
+
+ return iFirstSave + 1;
+ });
+
+ // This replaces (beginText, setFont, setTextMatrix, showText, endText)+
+ // sequences with (beginText, setFont, (setTextMatrix, showText)+, endText)+
+ // sequences, if the font for each one is the same.
+ addState(InitialState,
+ [OPS.beginText, OPS.setFont, OPS.setTextMatrix, OPS.showText, OPS.endText],
+ function (context) {
+ var MIN_CHARS_IN_BLOCK = 3;
+ var MAX_CHARS_IN_BLOCK = 1000;
+
+ var fnArray = context.fnArray, argsArray = context.argsArray;
+ var curr = context.iCurr;
+ var iFirstBeginText = curr - 4;
+ var iFirstSetFont = curr - 3;
+ var iFirstSetTextMatrix = curr - 2;
+ var iFirstShowText = curr - 1;
+ var iFirstEndText = curr;
+
+ // Look for the quintets.
+ var firstSetFontArg0 = argsArray[iFirstSetFont][0];
+ var firstSetFontArg1 = argsArray[iFirstSetFont][1];
+ var i = iFirstBeginText + 5;
+ var ii = fnArray.length;
+ while (i + 4 < ii) {
+ if (fnArray[i] !== OPS.beginText ||
+ fnArray[i + 1] !== OPS.setFont ||
+ fnArray[i + 2] !== OPS.setTextMatrix ||
+ fnArray[i + 3] !== OPS.showText ||
+ fnArray[i + 4] !== OPS.endText) {
+ break; // ops don't match
+ }
+ if (argsArray[i + 1][0] !== firstSetFontArg0 ||
+ argsArray[i + 1][1] !== firstSetFontArg1) {
+ break; // fonts don't match
+ }
+ i += 5;
+ }
+
+ // At this point, i is the index of the first op past the last valid
+ // quintet.
+ var count = Math.min(((i - iFirstBeginText) / 5), MAX_CHARS_IN_BLOCK);
+ if (count < MIN_CHARS_IN_BLOCK) {
+ return i;
+ }
+
+ // If the preceding quintet is (<something>, setFont, setTextMatrix,
+ // showText, endText), include that as well. (E.g. <something> might be
+ // |dependency|.)
+ var iFirst = iFirstBeginText;
+ if (iFirstBeginText >= 4 &&
+ fnArray[iFirstBeginText - 4] === fnArray[iFirstSetFont] &&
+ fnArray[iFirstBeginText - 3] === fnArray[iFirstSetTextMatrix] &&
+ fnArray[iFirstBeginText - 2] === fnArray[iFirstShowText] &&
+ fnArray[iFirstBeginText - 1] === fnArray[iFirstEndText] &&
+ argsArray[iFirstBeginText - 4][0] === firstSetFontArg0 &&
+ argsArray[iFirstBeginText - 4][1] === firstSetFontArg1) {
+ count++;
+ iFirst -= 5;
+ }
+
+ // Remove (endText, beginText, setFont) trios.
+ var iEndText = iFirst + 4;
+ for (var q = 1; q < count; q++) {
+ fnArray.splice(iEndText, 3);
+ argsArray.splice(iEndText, 3);
+ iEndText += 2;
+ }
+
+ return iEndText + 1;
+ });
+
+ function QueueOptimizer() {}
+
+ QueueOptimizer.prototype = {
+ optimize: function QueueOptimizer_optimize(queue) {
+ var fnArray = queue.fnArray, argsArray = queue.argsArray;
+ var context = {
+ iCurr: 0,
+ fnArray: fnArray,
+ argsArray: argsArray
+ };
+ var state;
+ var i = 0, ii = fnArray.length;
+ while (i < ii) {
+ state = (state || InitialState)[fnArray[i]];
+ if (typeof state === 'function') { // we found some handler
+ context.iCurr = i;
+ // state() returns the index of the first non-matching op (if we
+ // didn't match) or the first op past the modified ops (if we did
+ // match and replace).
+ i = state(context);
+ state = undefined; // reset the state machine
+ ii = context.fnArray.length;
+ } else {
+ i++;
+ }
+ }
+ }
+ };
+ return QueueOptimizer;
+})();
+
+
+var BUILT_IN_CMAPS = [
+// << Start unicode maps.
+'Adobe-GB1-UCS2',
+'Adobe-CNS1-UCS2',
+'Adobe-Japan1-UCS2',
+'Adobe-Korea1-UCS2',
+// >> End unicode maps.
+'78-EUC-H',
+'78-EUC-V',
+'78-H',
+'78-RKSJ-H',
+'78-RKSJ-V',
+'78-V',
+'78ms-RKSJ-H',
+'78ms-RKSJ-V',
+'83pv-RKSJ-H',
+'90ms-RKSJ-H',
+'90ms-RKSJ-V',
+'90msp-RKSJ-H',
+'90msp-RKSJ-V',
+'90pv-RKSJ-H',
+'90pv-RKSJ-V',
+'Add-H',
+'Add-RKSJ-H',
+'Add-RKSJ-V',
+'Add-V',
+'Adobe-CNS1-0',
+'Adobe-CNS1-1',
+'Adobe-CNS1-2',
+'Adobe-CNS1-3',
+'Adobe-CNS1-4',
+'Adobe-CNS1-5',
+'Adobe-CNS1-6',
+'Adobe-GB1-0',
+'Adobe-GB1-1',
+'Adobe-GB1-2',
+'Adobe-GB1-3',
+'Adobe-GB1-4',
+'Adobe-GB1-5',
+'Adobe-Japan1-0',
+'Adobe-Japan1-1',
+'Adobe-Japan1-2',
+'Adobe-Japan1-3',
+'Adobe-Japan1-4',
+'Adobe-Japan1-5',
+'Adobe-Japan1-6',
+'Adobe-Korea1-0',
+'Adobe-Korea1-1',
+'Adobe-Korea1-2',
+'B5-H',
+'B5-V',
+'B5pc-H',
+'B5pc-V',
+'CNS-EUC-H',
+'CNS-EUC-V',
+'CNS1-H',
+'CNS1-V',
+'CNS2-H',
+'CNS2-V',
+'ETHK-B5-H',
+'ETHK-B5-V',
+'ETen-B5-H',
+'ETen-B5-V',
+'ETenms-B5-H',
+'ETenms-B5-V',
+'EUC-H',
+'EUC-V',
+'Ext-H',
+'Ext-RKSJ-H',
+'Ext-RKSJ-V',
+'Ext-V',
+'GB-EUC-H',
+'GB-EUC-V',
+'GB-H',
+'GB-V',
+'GBK-EUC-H',
+'GBK-EUC-V',
+'GBK2K-H',
+'GBK2K-V',
+'GBKp-EUC-H',
+'GBKp-EUC-V',
+'GBT-EUC-H',
+'GBT-EUC-V',
+'GBT-H',
+'GBT-V',
+'GBTpc-EUC-H',
+'GBTpc-EUC-V',
+'GBpc-EUC-H',
+'GBpc-EUC-V',
+'H',
+'HKdla-B5-H',
+'HKdla-B5-V',
+'HKdlb-B5-H',
+'HKdlb-B5-V',
+'HKgccs-B5-H',
+'HKgccs-B5-V',
+'HKm314-B5-H',
+'HKm314-B5-V',
+'HKm471-B5-H',
+'HKm471-B5-V',
+'HKscs-B5-H',
+'HKscs-B5-V',
+'Hankaku',
+'Hiragana',
+'KSC-EUC-H',
+'KSC-EUC-V',
+'KSC-H',
+'KSC-Johab-H',
+'KSC-Johab-V',
+'KSC-V',
+'KSCms-UHC-H',
+'KSCms-UHC-HW-H',
+'KSCms-UHC-HW-V',
+'KSCms-UHC-V',
+'KSCpc-EUC-H',
+'KSCpc-EUC-V',
+'Katakana',
+'NWP-H',
+'NWP-V',
+'RKSJ-H',
+'RKSJ-V',
+'Roman',
+'UniCNS-UCS2-H',
+'UniCNS-UCS2-V',
+'UniCNS-UTF16-H',
+'UniCNS-UTF16-V',
+'UniCNS-UTF32-H',
+'UniCNS-UTF32-V',
+'UniCNS-UTF8-H',
+'UniCNS-UTF8-V',
+'UniGB-UCS2-H',
+'UniGB-UCS2-V',
+'UniGB-UTF16-H',
+'UniGB-UTF16-V',
+'UniGB-UTF32-H',
+'UniGB-UTF32-V',
+'UniGB-UTF8-H',
+'UniGB-UTF8-V',
+'UniJIS-UCS2-H',
+'UniJIS-UCS2-HW-H',
+'UniJIS-UCS2-HW-V',
+'UniJIS-UCS2-V',
+'UniJIS-UTF16-H',
+'UniJIS-UTF16-V',
+'UniJIS-UTF32-H',
+'UniJIS-UTF32-V',
+'UniJIS-UTF8-H',
+'UniJIS-UTF8-V',
+'UniJIS2004-UTF16-H',
+'UniJIS2004-UTF16-V',
+'UniJIS2004-UTF32-H',
+'UniJIS2004-UTF32-V',
+'UniJIS2004-UTF8-H',
+'UniJIS2004-UTF8-V',
+'UniJISPro-UCS2-HW-V',
+'UniJISPro-UCS2-V',
+'UniJISPro-UTF8-V',
+'UniJISX0213-UTF32-H',
+'UniJISX0213-UTF32-V',
+'UniJISX02132004-UTF32-H',
+'UniJISX02132004-UTF32-V',
+'UniKS-UCS2-H',
+'UniKS-UCS2-V',
+'UniKS-UTF16-H',
+'UniKS-UTF16-V',
+'UniKS-UTF32-H',
+'UniKS-UTF32-V',
+'UniKS-UTF8-H',
+'UniKS-UTF8-V',
+'V',
+'WP-Symbol'];
+
+// CMap, not to be confused with TrueType's cmap.
+var CMap = (function CMapClosure() {
+ function CMap(builtInCMap) {
+ // Codespace ranges are stored as follows:
+ // [[1BytePairs], [2BytePairs], [3BytePairs], [4BytePairs]]
+ // where nBytePairs are ranges e.g. [low1, high1, low2, high2, ...]
+ this.codespaceRanges = [[], [], [], []];
+ this.numCodespaceRanges = 0;
+ // Map entries have one of two forms.
+ // - cid chars are 16-bit unsigned integers, stored as integers.
+ // - bf chars are variable-length byte sequences, stored as strings, with
+ // one byte per character.
+ this._map = [];
+ this.name = '';
+ this.vertical = false;
+ this.useCMap = null;
+ this.builtInCMap = builtInCMap;
+ }
+ CMap.prototype = {
+ addCodespaceRange: function(n, low, high) {
+ this.codespaceRanges[n - 1].push(low, high);
+ this.numCodespaceRanges++;
+ },
+
+ mapCidRange: function(low, high, dstLow) {
+ while (low <= high) {
+ this._map[low++] = dstLow++;
+ }
+ },
+
+ mapBfRange: function(low, high, dstLow) {
+ var lastByte = dstLow.length - 1;
+ while (low <= high) {
+ this._map[low++] = dstLow;
+ // Only the last byte has to be incremented.
+ dstLow = dstLow.substr(0, lastByte) +
+ String.fromCharCode(dstLow.charCodeAt(lastByte) + 1);
+ }
+ },
+
+ mapBfRangeToArray: function(low, high, array) {
+ var i = 0, ii = array.length;
+ while (low <= high && i < ii) {
+ this._map[low] = array[i++];
+ ++low;
+ }
+ },
+
+ // This is used for both bf and cid chars.
+ mapOne: function(src, dst) {
+ this._map[src] = dst;
+ },
+
+ lookup: function(code) {
+ return this._map[code];
+ },
+
+ contains: function(code) {
+ return this._map[code] !== undefined;
+ },
+
+ forEach: function(callback) {
+ // Most maps have fewer than 65536 entries, and for those we use normal
+ // array iteration. But really sparse tables are possible -- e.g. with
+ // indices in the *billions*. For such tables we use for..in, which isn't
+ // ideal because it stringifies the indices for all present elements, but
+ // it does avoid iterating over every undefined entry.
+ var map = this._map;
+ var length = map.length;
+ var i;
+ if (length <= 0x10000) {
+ for (i = 0; i < length; i++) {
+ if (map[i] !== undefined) {
+ callback(i, map[i]);
+ }
+ }
+ } else {
+ for (i in this._map) {
+ callback(i, map[i]);
+ }
+ }
+ },
+
+ charCodeOf: function(value) {
+ return this._map.indexOf(value);
+ },
+
+ getMap: function() {
+ return this._map;
+ },
+
+ readCharCode: function(str, offset, out) {
+ var c = 0;
+ var codespaceRanges = this.codespaceRanges;
+ var codespaceRangesLen = this.codespaceRanges.length;
+ // 9.7.6.2 CMap Mapping
+ // The code length is at most 4.
+ for (var n = 0; n < codespaceRangesLen; n++) {
+ c = ((c << 8) | str.charCodeAt(offset + n)) >>> 0;
+ // Check each codespace range to see if it falls within.
+ var codespaceRange = codespaceRanges[n];
+ for (var k = 0, kk = codespaceRange.length; k < kk;) {
+ var low = codespaceRange[k++];
+ var high = codespaceRange[k++];
+ if (c >= low && c <= high) {
+ out.charcode = c;
+ out.length = n + 1;
+ return;
+ }
+ }
+ }
+ out.charcode = 0;
+ out.length = 1;
+ },
+
+ get isIdentityCMap() {
+ if (!(this.name === 'Identity-H' || this.name === 'Identity-V')) {
+ return false;
+ }
+ if (this._map.length !== 0x10000) {
+ return false;
+ }
+ for (var i = 0; i < 0x10000; i++) {
+ if (this._map[i] !== i) {
+ return false;
+ }
+ }
+ return true;
+ }
+ };
+ return CMap;
+})();
+
+// A special case of CMap, where the _map array implicitly has a length of
+// 65536 and each element is equal to its index.
+var IdentityCMap = (function IdentityCMapClosure() {
+ function IdentityCMap(vertical, n) {
+ CMap.call(this);
+ this.vertical = vertical;
+ this.addCodespaceRange(n, 0, 0xffff);
+ }
+ Util.inherit(IdentityCMap, CMap, {});
+
+ IdentityCMap.prototype = {
+ addCodespaceRange: CMap.prototype.addCodespaceRange,
+
+ mapCidRange: function(low, high, dstLow) {
+ error('should not call mapCidRange');
+ },
+
+ mapBfRange: function(low, high, dstLow) {
+ error('should not call mapBfRange');
+ },
+
+ mapBfRangeToArray: function(low, high, array) {
+ error('should not call mapBfRangeToArray');
+ },
+
+ mapOne: function(src, dst) {
+ error('should not call mapCidOne');
+ },
+
+ lookup: function(code) {
+ return (isInt(code) && code <= 0xffff) ? code : undefined;
+ },
+
+ contains: function(code) {
+ return isInt(code) && code <= 0xffff;
+ },
+
+ forEach: function(callback) {
+ for (var i = 0; i <= 0xffff; i++) {
+ callback(i, i);
+ }
+ },
+
+ charCodeOf: function(value) {
+ return (isInt(value) && value <= 0xffff) ? value : -1;
+ },
+
+ getMap: function() {
+ // Sometimes identity maps must be instantiated, but it's rare.
+ var map = new Array(0x10000);
+ for (var i = 0; i <= 0xffff; i++) {
+ map[i] = i;
+ }
+ return map;
+ },
+
+ readCharCode: CMap.prototype.readCharCode,
+
+ get isIdentityCMap() {
+ error('should not access .isIdentityCMap');
+ }
+ };
+
+ return IdentityCMap;
+})();
+
+var BinaryCMapReader = (function BinaryCMapReaderClosure() {
+ function fetchBinaryData(url) {
+ var nonBinaryRequest = PDFJS.disableWorker;
+ var request = new XMLHttpRequest();
+ request.open('GET', url, false);
+ if (!nonBinaryRequest) {
+ try {
+ request.responseType = 'arraybuffer';
+ nonBinaryRequest = request.responseType !== 'arraybuffer';
+ } catch (e) {
+ nonBinaryRequest = true;
+ }
+ }
+ if (nonBinaryRequest && request.overrideMimeType) {
+ request.overrideMimeType('text/plain; charset=x-user-defined');
+ }
+ request.send(null);
+ if (nonBinaryRequest ? !request.responseText : !request.response) {
+ error('Unable to get binary cMap at: ' + url);
+ }
+ if (nonBinaryRequest) {
+ var data = Array.prototype.map.call(request.responseText, function (ch) {
+ return ch.charCodeAt(0) & 255;
+ });
+ return new Uint8Array(data);
+ }
+ return new Uint8Array(request.response);
+ }
+
+ function hexToInt(a, size) {
+ var n = 0;
+ for (var i = 0; i <= size; i++) {
+ n = (n << 8) | a[i];
+ }
+ return n >>> 0;
+ }
+
+ function hexToStr(a, size) {
+ // This code is hot. Special-case some common values to avoid creating an
+ // object with subarray().
+ if (size === 1) {
+ return String.fromCharCode(a[0], a[1]);
+ }
+ if (size === 3) {
+ return String.fromCharCode(a[0], a[1], a[2], a[3]);
+ }
+ return String.fromCharCode.apply(null, a.subarray(0, size + 1));
+ }
+
+ function addHex(a, b, size) {
+ var c = 0;
+ for (var i = size; i >= 0; i--) {
+ c += a[i] + b[i];
+ a[i] = c & 255;
+ c >>= 8;
+ }
+ }
+
+ function incHex(a, size) {
+ var c = 1;
+ for (var i = size; i >= 0 && c > 0; i--) {
+ c += a[i];
+ a[i] = c & 255;
+ c >>= 8;
+ }
+ }
+
+ var MAX_NUM_SIZE = 16;
+ var MAX_ENCODED_NUM_SIZE = 19; // ceil(MAX_NUM_SIZE * 7 / 8)
+
+ function BinaryCMapStream(data) {
+ this.buffer = data;
+ this.pos = 0;
+ this.end = data.length;
+ this.tmpBuf = new Uint8Array(MAX_ENCODED_NUM_SIZE);
+ }
+
+ BinaryCMapStream.prototype = {
+ readByte: function () {
+ if (this.pos >= this.end) {
+ return -1;
+ }
+ return this.buffer[this.pos++];
+ },
+ readNumber: function () {
+ var n = 0;
+ var last;
+ do {
+ var b = this.readByte();
+ if (b < 0) {
+ error('unexpected EOF in bcmap');
+ }
+ last = !(b & 0x80);
+ n = (n << 7) | (b & 0x7F);
+ } while (!last);
+ return n;
+ },
+ readSigned: function () {
+ var n = this.readNumber();
+ return (n & 1) ? ~(n >>> 1) : n >>> 1;
+ },
+ readHex: function (num, size) {
+ num.set(this.buffer.subarray(this.pos,
+ this.pos + size + 1));
+ this.pos += size + 1;
+ },
+ readHexNumber: function (num, size) {
+ var last;
+ var stack = this.tmpBuf, sp = 0;
+ do {
+ var b = this.readByte();
+ if (b < 0) {
+ error('unexpected EOF in bcmap');
+ }
+ last = !(b & 0x80);
+ stack[sp++] = b & 0x7F;
+ } while (!last);
+ var i = size, buffer = 0, bufferSize = 0;
+ while (i >= 0) {
+ while (bufferSize < 8 && stack.length > 0) {
+ buffer = (stack[--sp] << bufferSize) | buffer;
+ bufferSize += 7;
+ }
+ num[i] = buffer & 255;
+ i--;
+ buffer >>= 8;
+ bufferSize -= 8;
+ }
+ },
+ readHexSigned: function (num, size) {
+ this.readHexNumber(num, size);
+ var sign = num[size] & 1 ? 255 : 0;
+ var c = 0;
+ for (var i = 0; i <= size; i++) {
+ c = ((c & 1) << 8) | num[i];
+ num[i] = (c >> 1) ^ sign;
+ }
+ },
+ readString: function () {
+ var len = this.readNumber();
+ var s = '';
+ for (var i = 0; i < len; i++) {
+ s += String.fromCharCode(this.readNumber());
+ }
+ return s;
+ }
+ };
+
+ function processBinaryCMap(url, cMap, extend) {
+ var data = fetchBinaryData(url);
+ var stream = new BinaryCMapStream(data);
+
+ var header = stream.readByte();
+ cMap.vertical = !!(header & 1);
+
+ var useCMap = null;
+ var start = new Uint8Array(MAX_NUM_SIZE);
+ var end = new Uint8Array(MAX_NUM_SIZE);
+ var char = new Uint8Array(MAX_NUM_SIZE);
+ var charCode = new Uint8Array(MAX_NUM_SIZE);
+ var tmp = new Uint8Array(MAX_NUM_SIZE);
+ var code;
+
+ var b;
+ while ((b = stream.readByte()) >= 0) {
+ var type = b >> 5;
+ if (type === 7) { // metadata, e.g. comment or usecmap
+ switch (b & 0x1F) {
+ case 0:
+ stream.readString(); // skipping comment
+ break;
+ case 1:
+ useCMap = stream.readString();
+ break;
+ }
+ continue;
+ }
+ var sequence = !!(b & 0x10);
+ var dataSize = b & 15;
+
+ assert(dataSize + 1 <= MAX_NUM_SIZE);
+
+ var ucs2DataSize = 1;
+ var subitemsCount = stream.readNumber();
+ var i;
+ switch (type) {
+ case 0: // codespacerange
+ stream.readHex(start, dataSize);
+ stream.readHexNumber(end, dataSize);
+ addHex(end, start, dataSize);
+ cMap.addCodespaceRange(dataSize + 1, hexToInt(start, dataSize),
+ hexToInt(end, dataSize));
+ for (i = 1; i < subitemsCount; i++) {
+ incHex(end, dataSize);
+ stream.readHexNumber(start, dataSize);
+ addHex(start, end, dataSize);
+ stream.readHexNumber(end, dataSize);
+ addHex(end, start, dataSize);
+ cMap.addCodespaceRange(dataSize + 1, hexToInt(start, dataSize),
+ hexToInt(end, dataSize));
+ }
+ break;
+ case 1: // notdefrange
+ stream.readHex(start, dataSize);
+ stream.readHexNumber(end, dataSize);
+ addHex(end, start, dataSize);
+ code = stream.readNumber();
+ // undefined range, skipping
+ for (i = 1; i < subitemsCount; i++) {
+ incHex(end, dataSize);
+ stream.readHexNumber(start, dataSize);
+ addHex(start, end, dataSize);
+ stream.readHexNumber(end, dataSize);
+ addHex(end, start, dataSize);
+ code = stream.readNumber();
+ // nop
+ }
+ break;
+ case 2: // cidchar
+ stream.readHex(char, dataSize);
+ code = stream.readNumber();
+ cMap.mapOne(hexToInt(char, dataSize), code);
+ for (i = 1; i < subitemsCount; i++) {
+ incHex(char, dataSize);
+ if (!sequence) {
+ stream.readHexNumber(tmp, dataSize);
+ addHex(char, tmp, dataSize);
+ }
+ code = stream.readSigned() + (code + 1);
+ cMap.mapOne(hexToInt(char, dataSize), code);
+ }
+ break;
+ case 3: // cidrange
+ stream.readHex(start, dataSize);
+ stream.readHexNumber(end, dataSize);
+ addHex(end, start, dataSize);
+ code = stream.readNumber();
+ cMap.mapCidRange(hexToInt(start, dataSize), hexToInt(end, dataSize),
+ code);
+ for (i = 1; i < subitemsCount; i++) {
+ incHex(end, dataSize);
+ if (!sequence) {
+ stream.readHexNumber(start, dataSize);
+ addHex(start, end, dataSize);
+ } else {
+ start.set(end);
+ }
+ stream.readHexNumber(end, dataSize);
+ addHex(end, start, dataSize);
+ code = stream.readNumber();
+ cMap.mapCidRange(hexToInt(start, dataSize), hexToInt(end, dataSize),
+ code);
+ }
+ break;
+ case 4: // bfchar
+ stream.readHex(char, ucs2DataSize);
+ stream.readHex(charCode, dataSize);
+ cMap.mapOne(hexToInt(char, ucs2DataSize),
+ hexToStr(charCode, dataSize));
+ for (i = 1; i < subitemsCount; i++) {
+ incHex(char, ucs2DataSize);
+ if (!sequence) {
+ stream.readHexNumber(tmp, ucs2DataSize);
+ addHex(char, tmp, ucs2DataSize);
+ }
+ incHex(charCode, dataSize);
+ stream.readHexSigned(tmp, dataSize);
+ addHex(charCode, tmp, dataSize);
+ cMap.mapOne(hexToInt(char, ucs2DataSize),
+ hexToStr(charCode, dataSize));
+ }
+ break;
+ case 5: // bfrange
+ stream.readHex(start, ucs2DataSize);
+ stream.readHexNumber(end, ucs2DataSize);
+ addHex(end, start, ucs2DataSize);
+ stream.readHex(charCode, dataSize);
+ cMap.mapBfRange(hexToInt(start, ucs2DataSize),
+ hexToInt(end, ucs2DataSize),
+ hexToStr(charCode, dataSize));
+ for (i = 1; i < subitemsCount; i++) {
+ incHex(end, ucs2DataSize);
+ if (!sequence) {
+ stream.readHexNumber(start, ucs2DataSize);
+ addHex(start, end, ucs2DataSize);
+ } else {
+ start.set(end);
+ }
+ stream.readHexNumber(end, ucs2DataSize);
+ addHex(end, start, ucs2DataSize);
+ stream.readHex(charCode, dataSize);
+ cMap.mapBfRange(hexToInt(start, ucs2DataSize),
+ hexToInt(end, ucs2DataSize),
+ hexToStr(charCode, dataSize));
+ }
+ break;
+ default:
+ error('Unknown type: ' + type);
+ break;
+ }
+ }
+
+ if (useCMap) {
+ extend(useCMap);
+ }
+ return cMap;
+ }
+
+ function BinaryCMapReader() {}
+
+ BinaryCMapReader.prototype = {
+ read: processBinaryCMap
+ };
+
+ return BinaryCMapReader;
+})();
+
+var CMapFactory = (function CMapFactoryClosure() {
+ function strToInt(str) {
+ var a = 0;
+ for (var i = 0; i < str.length; i++) {
+ a = (a << 8) | str.charCodeAt(i);
+ }
+ return a >>> 0;
+ }
+
+ function expectString(obj) {
+ if (!isString(obj)) {
+ error('Malformed CMap: expected string.');
+ }
+ }
+
+ function expectInt(obj) {
+ if (!isInt(obj)) {
+ error('Malformed CMap: expected int.');
+ }
+ }
+
+ function parseBfChar(cMap, lexer) {
+ while (true) {
+ var obj = lexer.getObj();
+ if (isEOF(obj)) {
+ break;
+ }
+ if (isCmd(obj, 'endbfchar')) {
+ return;
+ }
+ expectString(obj);
+ var src = strToInt(obj);
+ obj = lexer.getObj();
+ // TODO are /dstName used?
+ expectString(obj);
+ var dst = obj;
+ cMap.mapOne(src, dst);
+ }
+ }
+
+ function parseBfRange(cMap, lexer) {
+ while (true) {
+ var obj = lexer.getObj();
+ if (isEOF(obj)) {
+ break;
+ }
+ if (isCmd(obj, 'endbfrange')) {
+ return;
+ }
+ expectString(obj);
+ var low = strToInt(obj);
+ obj = lexer.getObj();
+ expectString(obj);
+ var high = strToInt(obj);
+ obj = lexer.getObj();
+ if (isInt(obj) || isString(obj)) {
+ var dstLow = isInt(obj) ? String.fromCharCode(obj) : obj;
+ cMap.mapBfRange(low, high, dstLow);
+ } else if (isCmd(obj, '[')) {
+ obj = lexer.getObj();
+ var array = [];
+ while (!isCmd(obj, ']') && !isEOF(obj)) {
+ array.push(obj);
+ obj = lexer.getObj();
+ }
+ cMap.mapBfRangeToArray(low, high, array);
+ } else {
+ break;
+ }
+ }
+ error('Invalid bf range.');
+ }
+
+ function parseCidChar(cMap, lexer) {
+ while (true) {
+ var obj = lexer.getObj();
+ if (isEOF(obj)) {
+ break;
+ }
+ if (isCmd(obj, 'endcidchar')) {
+ return;
+ }
+ expectString(obj);
+ var src = strToInt(obj);
+ obj = lexer.getObj();
+ expectInt(obj);
+ var dst = obj;
+ cMap.mapOne(src, dst);
+ }
+ }
+
+ function parseCidRange(cMap, lexer) {
+ while (true) {
+ var obj = lexer.getObj();
+ if (isEOF(obj)) {
+ break;
+ }
+ if (isCmd(obj, 'endcidrange')) {
+ return;
+ }
+ expectString(obj);
+ var low = strToInt(obj);
+ obj = lexer.getObj();
+ expectString(obj);
+ var high = strToInt(obj);
+ obj = lexer.getObj();
+ expectInt(obj);
+ var dstLow = obj;
+ cMap.mapCidRange(low, high, dstLow);
+ }
+ }
+
+ function parseCodespaceRange(cMap, lexer) {
+ while (true) {
+ var obj = lexer.getObj();
+ if (isEOF(obj)) {
+ break;
+ }
+ if (isCmd(obj, 'endcodespacerange')) {
+ return;
+ }
+ if (!isString(obj)) {
+ break;
+ }
+ var low = strToInt(obj);
+ obj = lexer.getObj();
+ if (!isString(obj)) {
+ break;
+ }
+ var high = strToInt(obj);
+ cMap.addCodespaceRange(obj.length, low, high);
+ }
+ error('Invalid codespace range.');
+ }
+
+ function parseWMode(cMap, lexer) {
+ var obj = lexer.getObj();
+ if (isInt(obj)) {
+ cMap.vertical = !!obj;
+ }
+ }
+
+ function parseCMapName(cMap, lexer) {
+ var obj = lexer.getObj();
+ if (isName(obj) && isString(obj.name)) {
+ cMap.name = obj.name;
+ }
+ }
+
+ function parseCMap(cMap, lexer, builtInCMapParams, useCMap) {
+ var previous;
+ var embededUseCMap;
+ objLoop: while (true) {
+ var obj = lexer.getObj();
+ if (isEOF(obj)) {
+ break;
+ } else if (isName(obj)) {
+ if (obj.name === 'WMode') {
+ parseWMode(cMap, lexer);
+ } else if (obj.name === 'CMapName') {
+ parseCMapName(cMap, lexer);
+ }
+ previous = obj;
+ } else if (isCmd(obj)) {
+ switch (obj.cmd) {
+ case 'endcmap':
+ break objLoop;
+ case 'usecmap':
+ if (isName(previous)) {
+ embededUseCMap = previous.name;
+ }
+ break;
+ case 'begincodespacerange':
+ parseCodespaceRange(cMap, lexer);
+ break;
+ case 'beginbfchar':
+ parseBfChar(cMap, lexer);
+ break;
+ case 'begincidchar':
+ parseCidChar(cMap, lexer);
+ break;
+ case 'beginbfrange':
+ parseBfRange(cMap, lexer);
+ break;
+ case 'begincidrange':
+ parseCidRange(cMap, lexer);
+ break;
+ }
+ }
+ }
+
+ if (!useCMap && embededUseCMap) {
+ // Load the usecmap definition from the file only if there wasn't one
+ // specified.
+ useCMap = embededUseCMap;
+ }
+ if (useCMap) {
+ extendCMap(cMap, builtInCMapParams, useCMap);
+ }
+ }
+
+ function extendCMap(cMap, builtInCMapParams, useCMap) {
+ cMap.useCMap = createBuiltInCMap(useCMap, builtInCMapParams);
+ // If there aren't any code space ranges defined clone all the parent ones
+ // into this cMap.
+ if (cMap.numCodespaceRanges === 0) {
+ var useCodespaceRanges = cMap.useCMap.codespaceRanges;
+ for (var i = 0; i < useCodespaceRanges.length; i++) {
+ cMap.codespaceRanges[i] = useCodespaceRanges[i].slice();
+ }
+ cMap.numCodespaceRanges = cMap.useCMap.numCodespaceRanges;
+ }
+ // Merge the map into the current one, making sure not to override
+ // any previously defined entries.
+ cMap.useCMap.forEach(function(key, value) {
+ if (!cMap.contains(key)) {
+ cMap.mapOne(key, cMap.useCMap.lookup(key));
+ }
+ });
+ }
+
+ function parseBinaryCMap(name, builtInCMapParams) {
+ var url = builtInCMapParams.url + name + '.bcmap';
+ var cMap = new CMap(true);
+ new BinaryCMapReader().read(url, cMap, function (useCMap) {
+ extendCMap(cMap, builtInCMapParams, useCMap);
+ });
+ return cMap;
+ }
+
+ function createBuiltInCMap(name, builtInCMapParams) {
+ if (name === 'Identity-H') {
+ return new IdentityCMap(false, 2);
+ } else if (name === 'Identity-V') {
+ return new IdentityCMap(true, 2);
+ }
+ if (BUILT_IN_CMAPS.indexOf(name) === -1) {
+ error('Unknown cMap name: ' + name);
+ }
+ assert(builtInCMapParams, 'built-in cMap parameters are not provided');
+
+ if (builtInCMapParams.packed) {
+ return parseBinaryCMap(name, builtInCMapParams);
+ }
+
+ var request = new XMLHttpRequest();
+ var url = builtInCMapParams.url + name;
+ request.open('GET', url, false);
+ request.send(null);
+ if (!request.responseText) {
+ error('Unable to get cMap at: ' + url);
+ }
+ var cMap = new CMap(true);
+ var lexer = new Lexer(new StringStream(request.responseText));
+ parseCMap(cMap, lexer, builtInCMapParams, null);
+ return cMap;
+ }
+
+ return {
+ create: function (encoding, builtInCMapParams, useCMap) {
+ if (isName(encoding)) {
+ return createBuiltInCMap(encoding.name, builtInCMapParams);
+ } else if (isStream(encoding)) {
+ var cMap = new CMap();
+ var lexer = new Lexer(encoding);
+ try {
+ parseCMap(cMap, lexer, builtInCMapParams, useCMap);
+ } catch (e) {
+ warn('Invalid CMap data. ' + e);
+ }
+ if (cMap.isIdentityCMap) {
+ return createBuiltInCMap(cMap.name, builtInCMapParams);
+ }
+ return cMap;
+ }
+ error('Encoding required.');
+ }
+ };
+})();
+
+
+// Unicode Private Use Area
+var PRIVATE_USE_OFFSET_START = 0xE000;
+var PRIVATE_USE_OFFSET_END = 0xF8FF;
+var SKIP_PRIVATE_USE_RANGE_F000_TO_F01F = false;
+
+// PDF Glyph Space Units are one Thousandth of a TextSpace Unit
+// except for Type 3 fonts
+var PDF_GLYPH_SPACE_UNITS = 1000;
+
+// Hinting is currently disabled due to unknown problems on windows
+// in tracemonkey and various other pdfs with type1 fonts.
+var HINTING_ENABLED = false;
+
+// Accented charactars are not displayed properly on windows, using this flag
+// to control analysis of seac charstrings.
+var SEAC_ANALYSIS_ENABLED = false;
+
+var FontFlags = {
+ FixedPitch: 1,
+ Serif: 2,
+ Symbolic: 4,
+ Script: 8,
+ Nonsymbolic: 32,
+ Italic: 64,
+ AllCap: 65536,
+ SmallCap: 131072,
+ ForceBold: 262144
+};
+
+var Encodings = {
+ ExpertEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ 'space', 'exclamsmall', 'Hungarumlautsmall', '', 'dollaroldstyle',
+ 'dollarsuperior', 'ampersandsmall', 'Acutesmall', 'parenleftsuperior',
+ 'parenrightsuperior', 'twodotenleader', 'onedotenleader', 'comma',
+ 'hyphen', 'period', 'fraction', 'zerooldstyle', 'oneoldstyle',
+ 'twooldstyle', 'threeoldstyle', 'fouroldstyle', 'fiveoldstyle',
+ 'sixoldstyle', 'sevenoldstyle', 'eightoldstyle', 'nineoldstyle', 'colon',
+ 'semicolon', 'commasuperior', 'threequartersemdash', 'periodsuperior',
+ 'questionsmall', '', 'asuperior', 'bsuperior', 'centsuperior', 'dsuperior',
+ 'esuperior', '', '', 'isuperior', '', '', 'lsuperior', 'msuperior',
+ 'nsuperior', 'osuperior', '', '', 'rsuperior', 'ssuperior', 'tsuperior',
+ '', 'ff', 'fi', 'fl', 'ffi', 'ffl', 'parenleftinferior', '',
+ 'parenrightinferior', 'Circumflexsmall', 'hyphensuperior', 'Gravesmall',
+ 'Asmall', 'Bsmall', 'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall',
+ 'Hsmall', 'Ismall', 'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall',
+ 'Osmall', 'Psmall', 'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall',
+ 'Vsmall', 'Wsmall', 'Xsmall', 'Ysmall', 'Zsmall', 'colonmonetary',
+ 'onefitted', 'rupiah', 'Tildesmall', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', 'exclamdownsmall', 'centoldstyle', 'Lslashsmall',
+ '', '', 'Scaronsmall', 'Zcaronsmall', 'Dieresissmall', 'Brevesmall',
+ 'Caronsmall', '', 'Dotaccentsmall', '', '', 'Macronsmall', '', '',
+ 'figuredash', 'hypheninferior', '', '', 'Ogoneksmall', 'Ringsmall',
+ 'Cedillasmall', '', '', '', 'onequarter', 'onehalf', 'threequarters',
+ 'questiondownsmall', 'oneeighth', 'threeeighths', 'fiveeighths',
+ 'seveneighths', 'onethird', 'twothirds', '', '', 'zerosuperior',
+ 'onesuperior', 'twosuperior', 'threesuperior', 'foursuperior',
+ 'fivesuperior', 'sixsuperior', 'sevensuperior', 'eightsuperior',
+ 'ninesuperior', 'zeroinferior', 'oneinferior', 'twoinferior',
+ 'threeinferior', 'fourinferior', 'fiveinferior', 'sixinferior',
+ 'seveninferior', 'eightinferior', 'nineinferior', 'centinferior',
+ 'dollarinferior', 'periodinferior', 'commainferior', 'Agravesmall',
+ 'Aacutesmall', 'Acircumflexsmall', 'Atildesmall', 'Adieresissmall',
+ 'Aringsmall', 'AEsmall', 'Ccedillasmall', 'Egravesmall', 'Eacutesmall',
+ 'Ecircumflexsmall', 'Edieresissmall', 'Igravesmall', 'Iacutesmall',
+ 'Icircumflexsmall', 'Idieresissmall', 'Ethsmall', 'Ntildesmall',
+ 'Ogravesmall', 'Oacutesmall', 'Ocircumflexsmall', 'Otildesmall',
+ 'Odieresissmall', 'OEsmall', 'Oslashsmall', 'Ugravesmall', 'Uacutesmall',
+ 'Ucircumflexsmall', 'Udieresissmall', 'Yacutesmall', 'Thornsmall',
+ 'Ydieresissmall'],
+ MacExpertEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ 'space', 'exclamsmall', 'Hungarumlautsmall', 'centoldstyle',
+ 'dollaroldstyle', 'dollarsuperior', 'ampersandsmall', 'Acutesmall',
+ 'parenleftsuperior', 'parenrightsuperior', 'twodotenleader',
+ 'onedotenleader', 'comma', 'hyphen', 'period', 'fraction', 'zerooldstyle',
+ 'oneoldstyle', 'twooldstyle', 'threeoldstyle', 'fouroldstyle',
+ 'fiveoldstyle', 'sixoldstyle', 'sevenoldstyle', 'eightoldstyle',
+ 'nineoldstyle', 'colon', 'semicolon', '', 'threequartersemdash', '',
+ 'questionsmall', '', '', '', '', 'Ethsmall', '', '', 'onequarter',
+ 'onehalf', 'threequarters', 'oneeighth', 'threeeighths', 'fiveeighths',
+ 'seveneighths', 'onethird', 'twothirds', '', '', '', '', '', '', 'ff',
+ 'fi', 'fl', 'ffi', 'ffl', 'parenleftinferior', '', 'parenrightinferior',
+ 'Circumflexsmall', 'hypheninferior', 'Gravesmall', 'Asmall', 'Bsmall',
+ 'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall', 'Hsmall', 'Ismall',
+ 'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall', 'Osmall', 'Psmall',
+ 'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall', 'Vsmall', 'Wsmall',
+ 'Xsmall', 'Ysmall', 'Zsmall', 'colonmonetary', 'onefitted', 'rupiah',
+ 'Tildesmall', '', '', 'asuperior', 'centsuperior', '', '', '', '',
+ 'Aacutesmall', 'Agravesmall', 'Acircumflexsmall', 'Adieresissmall',
+ 'Atildesmall', 'Aringsmall', 'Ccedillasmall', 'Eacutesmall', 'Egravesmall',
+ 'Ecircumflexsmall', 'Edieresissmall', 'Iacutesmall', 'Igravesmall',
+ 'Icircumflexsmall', 'Idieresissmall', 'Ntildesmall', 'Oacutesmall',
+ 'Ogravesmall', 'Ocircumflexsmall', 'Odieresissmall', 'Otildesmall',
+ 'Uacutesmall', 'Ugravesmall', 'Ucircumflexsmall', 'Udieresissmall', '',
+ 'eightsuperior', 'fourinferior', 'threeinferior', 'sixinferior',
+ 'eightinferior', 'seveninferior', 'Scaronsmall', '', 'centinferior',
+ 'twoinferior', '', 'Dieresissmall', '', 'Caronsmall', 'osuperior',
+ 'fiveinferior', '', 'commainferior', 'periodinferior', 'Yacutesmall', '',
+ 'dollarinferior', '', 'Thornsmall', '', 'nineinferior', 'zeroinferior',
+ 'Zcaronsmall', 'AEsmall', 'Oslashsmall', 'questiondownsmall',
+ 'oneinferior', 'Lslashsmall', '', '', '', '', '', '', 'Cedillasmall', '',
+ '', '', '', '', 'OEsmall', 'figuredash', 'hyphensuperior', '', '', '', '',
+ 'exclamdownsmall', '', 'Ydieresissmall', '', 'onesuperior', 'twosuperior',
+ 'threesuperior', 'foursuperior', 'fivesuperior', 'sixsuperior',
+ 'sevensuperior', 'ninesuperior', 'zerosuperior', '', 'esuperior',
+ 'rsuperior', 'tsuperior', '', '', 'isuperior', 'ssuperior', 'dsuperior',
+ '', '', '', '', '', 'lsuperior', 'Ogoneksmall', 'Brevesmall',
+ 'Macronsmall', 'bsuperior', 'nsuperior', 'msuperior', 'commasuperior',
+ 'periodsuperior', 'Dotaccentsmall', 'Ringsmall'],
+ MacRomanEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent',
+ 'ampersand', 'quotesingle', 'parenleft', 'parenright', 'asterisk', 'plus',
+ 'comma', 'hyphen', 'period', 'slash', 'zero', 'one', 'two', 'three',
+ 'four', 'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon',
+ 'less', 'equal', 'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F',
+ 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
+ 'V', 'W', 'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright',
+ 'asciicircum', 'underscore', 'grave', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
+ 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+ 'w', 'x', 'y', 'z', 'braceleft', 'bar', 'braceright', 'asciitilde', '',
+ 'Adieresis', 'Aring', 'Ccedilla', 'Eacute', 'Ntilde', 'Odieresis',
+ 'Udieresis', 'aacute', 'agrave', 'acircumflex', 'adieresis', 'atilde',
+ 'aring', 'ccedilla', 'eacute', 'egrave', 'ecircumflex', 'edieresis',
+ 'iacute', 'igrave', 'icircumflex', 'idieresis', 'ntilde', 'oacute',
+ 'ograve', 'ocircumflex', 'odieresis', 'otilde', 'uacute', 'ugrave',
+ 'ucircumflex', 'udieresis', 'dagger', 'degree', 'cent', 'sterling',
+ 'section', 'bullet', 'paragraph', 'germandbls', 'registered', 'copyright',
+ 'trademark', 'acute', 'dieresis', 'notequal', 'AE', 'Oslash', 'infinity',
+ 'plusminus', 'lessequal', 'greaterequal', 'yen', 'mu', 'partialdiff',
+ 'summation', 'product', 'pi', 'integral', 'ordfeminine', 'ordmasculine',
+ 'Omega', 'ae', 'oslash', 'questiondown', 'exclamdown', 'logicalnot',
+ 'radical', 'florin', 'approxequal', 'Delta', 'guillemotleft',
+ 'guillemotright', 'ellipsis', 'space', 'Agrave', 'Atilde', 'Otilde', 'OE',
+ 'oe', 'endash', 'emdash', 'quotedblleft', 'quotedblright', 'quoteleft',
+ 'quoteright', 'divide', 'lozenge', 'ydieresis', 'Ydieresis', 'fraction',
+ 'currency', 'guilsinglleft', 'guilsinglright', 'fi', 'fl', 'daggerdbl',
+ 'periodcentered', 'quotesinglbase', 'quotedblbase', 'perthousand',
+ 'Acircumflex', 'Ecircumflex', 'Aacute', 'Edieresis', 'Egrave', 'Iacute',
+ 'Icircumflex', 'Idieresis', 'Igrave', 'Oacute', 'Ocircumflex', 'apple',
+ 'Ograve', 'Uacute', 'Ucircumflex', 'Ugrave', 'dotlessi', 'circumflex',
+ 'tilde', 'macron', 'breve', 'dotaccent', 'ring', 'cedilla', 'hungarumlaut',
+ 'ogonek', 'caron'],
+ StandardEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent',
+ 'ampersand', 'quoteright', 'parenleft', 'parenright', 'asterisk', 'plus',
+ 'comma', 'hyphen', 'period', 'slash', 'zero', 'one', 'two', 'three',
+ 'four', 'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon',
+ 'less', 'equal', 'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F',
+ 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
+ 'V', 'W', 'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright',
+ 'asciicircum', 'underscore', 'quoteleft', 'a', 'b', 'c', 'd', 'e', 'f',
+ 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u',
+ 'v', 'w', 'x', 'y', 'z', 'braceleft', 'bar', 'braceright', 'asciitilde',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', 'exclamdown',
+ 'cent', 'sterling', 'fraction', 'yen', 'florin', 'section', 'currency',
+ 'quotesingle', 'quotedblleft', 'guillemotleft', 'guilsinglleft',
+ 'guilsinglright', 'fi', 'fl', '', 'endash', 'dagger', 'daggerdbl',
+ 'periodcentered', '', 'paragraph', 'bullet', 'quotesinglbase',
+ 'quotedblbase', 'quotedblright', 'guillemotright', 'ellipsis',
+ 'perthousand', '', 'questiondown', '', 'grave', 'acute', 'circumflex',
+ 'tilde', 'macron', 'breve', 'dotaccent', 'dieresis', '', 'ring', 'cedilla',
+ '', 'hungarumlaut', 'ogonek', 'caron', 'emdash', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', 'AE', '', 'ordfeminine', '', '',
+ '', '', 'Lslash', 'Oslash', 'OE', 'ordmasculine', '', '', '', '', '', 'ae',
+ '', '', '', 'dotlessi', '', '', 'lslash', 'oslash', 'oe', 'germandbls'],
+ WinAnsiEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent',
+ 'ampersand', 'quotesingle', 'parenleft', 'parenright', 'asterisk', 'plus',
+ 'comma', 'hyphen', 'period', 'slash', 'zero', 'one', 'two', 'three',
+ 'four', 'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon',
+ 'less', 'equal', 'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F',
+ 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
+ 'V', 'W', 'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright',
+ 'asciicircum', 'underscore', 'grave', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
+ 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+ 'w', 'x', 'y', 'z', 'braceleft', 'bar', 'braceright', 'asciitilde',
+ 'bullet', 'Euro', 'bullet', 'quotesinglbase', 'florin', 'quotedblbase',
+ 'ellipsis', 'dagger', 'daggerdbl', 'circumflex', 'perthousand', 'Scaron',
+ 'guilsinglleft', 'OE', 'bullet', 'Zcaron', 'bullet', 'bullet', 'quoteleft',
+ 'quoteright', 'quotedblleft', 'quotedblright', 'bullet', 'endash',
+ 'emdash', 'tilde', 'trademark', 'scaron', 'guilsinglright', 'oe', 'bullet',
+ 'zcaron', 'Ydieresis', 'space', 'exclamdown', 'cent', 'sterling',
+ 'currency', 'yen', 'brokenbar', 'section', 'dieresis', 'copyright',
+ 'ordfeminine', 'guillemotleft', 'logicalnot', 'hyphen', 'registered',
+ 'macron', 'degree', 'plusminus', 'twosuperior', 'threesuperior', 'acute',
+ 'mu', 'paragraph', 'periodcentered', 'cedilla', 'onesuperior',
+ 'ordmasculine', 'guillemotright', 'onequarter', 'onehalf', 'threequarters',
+ 'questiondown', 'Agrave', 'Aacute', 'Acircumflex', 'Atilde', 'Adieresis',
+ 'Aring', 'AE', 'Ccedilla', 'Egrave', 'Eacute', 'Ecircumflex', 'Edieresis',
+ 'Igrave', 'Iacute', 'Icircumflex', 'Idieresis', 'Eth', 'Ntilde', 'Ograve',
+ 'Oacute', 'Ocircumflex', 'Otilde', 'Odieresis', 'multiply', 'Oslash',
+ 'Ugrave', 'Uacute', 'Ucircumflex', 'Udieresis', 'Yacute', 'Thorn',
+ 'germandbls', 'agrave', 'aacute', 'acircumflex', 'atilde', 'adieresis',
+ 'aring', 'ae', 'ccedilla', 'egrave', 'eacute', 'ecircumflex', 'edieresis',
+ 'igrave', 'iacute', 'icircumflex', 'idieresis', 'eth', 'ntilde', 'ograve',
+ 'oacute', 'ocircumflex', 'otilde', 'odieresis', 'divide', 'oslash',
+ 'ugrave', 'uacute', 'ucircumflex', 'udieresis', 'yacute', 'thorn',
+ 'ydieresis'],
+ SymbolSetEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ 'space', 'exclam', 'universal', 'numbersign', 'existential', 'percent',
+ 'ampersand', 'suchthat', 'parenleft', 'parenright', 'asteriskmath', 'plus',
+ 'comma', 'minus', 'period', 'slash', 'zero', 'one', 'two', 'three', 'four',
+ 'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon', 'less',
+ 'equal', 'greater', 'question', 'congruent', 'Alpha', 'Beta', 'Chi',
+ 'Delta', 'Epsilon', 'Phi', 'Gamma', 'Eta', 'Iota', 'theta1', 'Kappa',
+ 'Lambda', 'Mu', 'Nu', 'Omicron', 'Pi', 'Theta', 'Rho', 'Sigma', 'Tau',
+ 'Upsilon', 'sigma1', 'Omega', 'Xi', 'Psi', 'Zeta', 'bracketleft',
+ 'therefore', 'bracketright', 'perpendicular', 'underscore', 'radicalex',
+ 'alpha', 'beta', 'chi', 'delta', 'epsilon', 'phi', 'gamma', 'eta', 'iota',
+ 'phi1', 'kappa', 'lambda', 'mu', 'nu', 'omicron', 'pi', 'theta', 'rho',
+ 'sigma', 'tau', 'upsilon', 'omega1', 'omega', 'xi', 'psi', 'zeta',
+ 'braceleft', 'bar', 'braceright', 'similar', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', 'Euro', 'Upsilon1', 'minute', 'lessequal',
+ 'fraction', 'infinity', 'florin', 'club', 'diamond', 'heart', 'spade',
+ 'arrowboth', 'arrowleft', 'arrowup', 'arrowright', 'arrowdown', 'degree',
+ 'plusminus', 'second', 'greaterequal', 'multiply', 'proportional',
+ 'partialdiff', 'bullet', 'divide', 'notequal', 'equivalence',
+ 'approxequal', 'ellipsis', 'arrowvertex', 'arrowhorizex', 'carriagereturn',
+ 'aleph', 'Ifraktur', 'Rfraktur', 'weierstrass', 'circlemultiply',
+ 'circleplus', 'emptyset', 'intersection', 'union', 'propersuperset',
+ 'reflexsuperset', 'notsubset', 'propersubset', 'reflexsubset', 'element',
+ 'notelement', 'angle', 'gradient', 'registerserif', 'copyrightserif',
+ 'trademarkserif', 'product', 'radical', 'dotmath', 'logicalnot',
+ 'logicaland', 'logicalor', 'arrowdblboth', 'arrowdblleft', 'arrowdblup',
+ 'arrowdblright', 'arrowdbldown', 'lozenge', 'angleleft', 'registersans',
+ 'copyrightsans', 'trademarksans', 'summation', 'parenlefttp',
+ 'parenleftex', 'parenleftbt', 'bracketlefttp', 'bracketleftex',
+ 'bracketleftbt', 'bracelefttp', 'braceleftmid', 'braceleftbt', 'braceex',
+ '', 'angleright', 'integral', 'integraltp', 'integralex', 'integralbt',
+ 'parenrighttp', 'parenrightex', 'parenrightbt', 'bracketrighttp',
+ 'bracketrightex', 'bracketrightbt', 'bracerighttp', 'bracerightmid',
+ 'bracerightbt'],
+ ZapfDingbatsEncoding: ['', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
+ 'space', 'a1', 'a2', 'a202', 'a3', 'a4', 'a5', 'a119', 'a118', 'a117',
+ 'a11', 'a12', 'a13', 'a14', 'a15', 'a16', 'a105', 'a17', 'a18', 'a19',
+ 'a20', 'a21', 'a22', 'a23', 'a24', 'a25', 'a26', 'a27', 'a28', 'a6', 'a7',
+ 'a8', 'a9', 'a10', 'a29', 'a30', 'a31', 'a32', 'a33', 'a34', 'a35', 'a36',
+ 'a37', 'a38', 'a39', 'a40', 'a41', 'a42', 'a43', 'a44', 'a45', 'a46',
+ 'a47', 'a48', 'a49', 'a50', 'a51', 'a52', 'a53', 'a54', 'a55', 'a56',
+ 'a57', 'a58', 'a59', 'a60', 'a61', 'a62', 'a63', 'a64', 'a65', 'a66',
+ 'a67', 'a68', 'a69', 'a70', 'a71', 'a72', 'a73', 'a74', 'a203', 'a75',
+ 'a204', 'a76', 'a77', 'a78', 'a79', 'a81', 'a82', 'a83', 'a84', 'a97',
+ 'a98', 'a99', 'a100', '', 'a89', 'a90', 'a93', 'a94', 'a91', 'a92', 'a205',
+ 'a85', 'a206', 'a86', 'a87', 'a88', 'a95', 'a96', '', '', '', '', '', '',
+ '', '', '', '', '', '', '', '', '', '', '', '', '', 'a101', 'a102', 'a103',
+ 'a104', 'a106', 'a107', 'a108', 'a112', 'a111', 'a110', 'a109', 'a120',
+ 'a121', 'a122', 'a123', 'a124', 'a125', 'a126', 'a127', 'a128', 'a129',
+ 'a130', 'a131', 'a132', 'a133', 'a134', 'a135', 'a136', 'a137', 'a138',
+ 'a139', 'a140', 'a141', 'a142', 'a143', 'a144', 'a145', 'a146', 'a147',
+ 'a148', 'a149', 'a150', 'a151', 'a152', 'a153', 'a154', 'a155', 'a156',
+ 'a157', 'a158', 'a159', 'a160', 'a161', 'a163', 'a164', 'a196', 'a165',
+ 'a192', 'a166', 'a167', 'a168', 'a169', 'a170', 'a171', 'a172', 'a173',
+ 'a162', 'a174', 'a175', 'a176', 'a177', 'a178', 'a179', 'a193', 'a180',
+ 'a199', 'a181', 'a200', 'a182', '', 'a201', 'a183', 'a184', 'a197', 'a185',
+ 'a194', 'a198', 'a186', 'a195', 'a187', 'a188', 'a189', 'a190', 'a191']
+};
+
+/**
+ * Hold a map of decoded fonts and of the standard fourteen Type1
+ * fonts and their acronyms.
+ */
+var stdFontMap = {
+ 'ArialNarrow': 'Helvetica',
+ 'ArialNarrow-Bold': 'Helvetica-Bold',
+ 'ArialNarrow-BoldItalic': 'Helvetica-BoldOblique',
+ 'ArialNarrow-Italic': 'Helvetica-Oblique',
+ 'ArialBlack': 'Helvetica',
+ 'ArialBlack-Bold': 'Helvetica-Bold',
+ 'ArialBlack-BoldItalic': 'Helvetica-BoldOblique',
+ 'ArialBlack-Italic': 'Helvetica-Oblique',
+ 'Arial': 'Helvetica',
+ 'Arial-Bold': 'Helvetica-Bold',
+ 'Arial-BoldItalic': 'Helvetica-BoldOblique',
+ 'Arial-Italic': 'Helvetica-Oblique',
+ 'Arial-BoldItalicMT': 'Helvetica-BoldOblique',
+ 'Arial-BoldMT': 'Helvetica-Bold',
+ 'Arial-ItalicMT': 'Helvetica-Oblique',
+ 'ArialMT': 'Helvetica',
+ 'Courier-Bold': 'Courier-Bold',
+ 'Courier-BoldItalic': 'Courier-BoldOblique',
+ 'Courier-Italic': 'Courier-Oblique',
+ 'CourierNew': 'Courier',
+ 'CourierNew-Bold': 'Courier-Bold',
+ 'CourierNew-BoldItalic': 'Courier-BoldOblique',
+ 'CourierNew-Italic': 'Courier-Oblique',
+ 'CourierNewPS-BoldItalicMT': 'Courier-BoldOblique',
+ 'CourierNewPS-BoldMT': 'Courier-Bold',
+ 'CourierNewPS-ItalicMT': 'Courier-Oblique',
+ 'CourierNewPSMT': 'Courier',
+ 'Helvetica': 'Helvetica',
+ 'Helvetica-Bold': 'Helvetica-Bold',
+ 'Helvetica-BoldItalic': 'Helvetica-BoldOblique',
+ 'Helvetica-BoldOblique': 'Helvetica-BoldOblique',
+ 'Helvetica-Italic': 'Helvetica-Oblique',
+ 'Helvetica-Oblique':'Helvetica-Oblique',
+ 'Symbol-Bold': 'Symbol',
+ 'Symbol-BoldItalic': 'Symbol',
+ 'Symbol-Italic': 'Symbol',
+ 'TimesNewRoman': 'Times-Roman',
+ 'TimesNewRoman-Bold': 'Times-Bold',
+ 'TimesNewRoman-BoldItalic': 'Times-BoldItalic',
+ 'TimesNewRoman-Italic': 'Times-Italic',
+ 'TimesNewRomanPS': 'Times-Roman',
+ 'TimesNewRomanPS-Bold': 'Times-Bold',
+ 'TimesNewRomanPS-BoldItalic': 'Times-BoldItalic',
+ 'TimesNewRomanPS-BoldItalicMT': 'Times-BoldItalic',
+ 'TimesNewRomanPS-BoldMT': 'Times-Bold',
+ 'TimesNewRomanPS-Italic': 'Times-Italic',
+ 'TimesNewRomanPS-ItalicMT': 'Times-Italic',
+ 'TimesNewRomanPSMT': 'Times-Roman',
+ 'TimesNewRomanPSMT-Bold': 'Times-Bold',
+ 'TimesNewRomanPSMT-BoldItalic': 'Times-BoldItalic',
+ 'TimesNewRomanPSMT-Italic': 'Times-Italic'
+};
+
+/**
+ * Holds the map of the non-standard fonts that might be included as a standard
+ * fonts without glyph data.
+ */
+var nonStdFontMap = {
+ 'CenturyGothic': 'Helvetica',
+ 'CenturyGothic-Bold': 'Helvetica-Bold',
+ 'CenturyGothic-BoldItalic': 'Helvetica-BoldOblique',
+ 'CenturyGothic-Italic': 'Helvetica-Oblique',
+ 'ComicSansMS': 'Comic Sans MS',
+ 'ComicSansMS-Bold': 'Comic Sans MS-Bold',
+ 'ComicSansMS-BoldItalic': 'Comic Sans MS-BoldItalic',
+ 'ComicSansMS-Italic': 'Comic Sans MS-Italic',
+ 'LucidaConsole': 'Courier',
+ 'LucidaConsole-Bold': 'Courier-Bold',
+ 'LucidaConsole-BoldItalic': 'Courier-BoldOblique',
+ 'LucidaConsole-Italic': 'Courier-Oblique',
+ 'MS-Gothic': 'MS Gothic',
+ 'MS-Gothic-Bold': 'MS Gothic-Bold',
+ 'MS-Gothic-BoldItalic': 'MS Gothic-BoldItalic',
+ 'MS-Gothic-Italic': 'MS Gothic-Italic',
+ 'MS-Mincho': 'MS Mincho',
+ 'MS-Mincho-Bold': 'MS Mincho-Bold',
+ 'MS-Mincho-BoldItalic': 'MS Mincho-BoldItalic',
+ 'MS-Mincho-Italic': 'MS Mincho-Italic',
+ 'MS-PGothic': 'MS PGothic',
+ 'MS-PGothic-Bold': 'MS PGothic-Bold',
+ 'MS-PGothic-BoldItalic': 'MS PGothic-BoldItalic',
+ 'MS-PGothic-Italic': 'MS PGothic-Italic',
+ 'MS-PMincho': 'MS PMincho',
+ 'MS-PMincho-Bold': 'MS PMincho-Bold',
+ 'MS-PMincho-BoldItalic': 'MS PMincho-BoldItalic',
+ 'MS-PMincho-Italic': 'MS PMincho-Italic',
+ 'Wingdings': 'ZapfDingbats'
+};
+
+var serifFonts = {
+ 'Adobe Jenson': true, 'Adobe Text': true, 'Albertus': true,
+ 'Aldus': true, 'Alexandria': true, 'Algerian': true,
+ 'American Typewriter': true, 'Antiqua': true, 'Apex': true,
+ 'Arno': true, 'Aster': true, 'Aurora': true,
+ 'Baskerville': true, 'Bell': true, 'Bembo': true,
+ 'Bembo Schoolbook': true, 'Benguiat': true, 'Berkeley Old Style': true,
+ 'Bernhard Modern': true, 'Berthold City': true, 'Bodoni': true,
+ 'Bauer Bodoni': true, 'Book Antiqua': true, 'Bookman': true,
+ 'Bordeaux Roman': true, 'Californian FB': true, 'Calisto': true,
+ 'Calvert': true, 'Capitals': true, 'Cambria': true,
+ 'Cartier': true, 'Caslon': true, 'Catull': true,
+ 'Centaur': true, 'Century Old Style': true, 'Century Schoolbook': true,
+ 'Chaparral': true, 'Charis SIL': true, 'Cheltenham': true,
+ 'Cholla Slab': true, 'Clarendon': true, 'Clearface': true,
+ 'Cochin': true, 'Colonna': true, 'Computer Modern': true,
+ 'Concrete Roman': true, 'Constantia': true, 'Cooper Black': true,
+ 'Corona': true, 'Ecotype': true, 'Egyptienne': true,
+ 'Elephant': true, 'Excelsior': true, 'Fairfield': true,
+ 'FF Scala': true, 'Folkard': true, 'Footlight': true,
+ 'FreeSerif': true, 'Friz Quadrata': true, 'Garamond': true,
+ 'Gentium': true, 'Georgia': true, 'Gloucester': true,
+ 'Goudy Old Style': true, 'Goudy Schoolbook': true, 'Goudy Pro Font': true,
+ 'Granjon': true, 'Guardian Egyptian': true, 'Heather': true,
+ 'Hercules': true, 'High Tower Text': true, 'Hiroshige': true,
+ 'Hoefler Text': true, 'Humana Serif': true, 'Imprint': true,
+ 'Ionic No. 5': true, 'Janson': true, 'Joanna': true,
+ 'Korinna': true, 'Lexicon': true, 'Liberation Serif': true,
+ 'Linux Libertine': true, 'Literaturnaya': true, 'Lucida': true,
+ 'Lucida Bright': true, 'Melior': true, 'Memphis': true,
+ 'Miller': true, 'Minion': true, 'Modern': true,
+ 'Mona Lisa': true, 'Mrs Eaves': true, 'MS Serif': true,
+ 'Museo Slab': true, 'New York': true, 'Nimbus Roman': true,
+ 'NPS Rawlinson Roadway': true, 'Palatino': true, 'Perpetua': true,
+ 'Plantin': true, 'Plantin Schoolbook': true, 'Playbill': true,
+ 'Poor Richard': true, 'Rawlinson Roadway': true, 'Renault': true,
+ 'Requiem': true, 'Rockwell': true, 'Roman': true,
+ 'Rotis Serif': true, 'Sabon': true, 'Scala': true,
+ 'Seagull': true, 'Sistina': true, 'Souvenir': true,
+ 'STIX': true, 'Stone Informal': true, 'Stone Serif': true,
+ 'Sylfaen': true, 'Times': true, 'Trajan': true,
+ 'Trinité': true, 'Trump Mediaeval': true, 'Utopia': true,
+ 'Vale Type': true, 'Bitstream Vera': true, 'Vera Serif': true,
+ 'Versailles': true, 'Wanted': true, 'Weiss': true,
+ 'Wide Latin': true, 'Windsor': true, 'XITS': true
+};
+
+var symbolsFonts = {
+ 'Dingbats': true, 'Symbol': true, 'ZapfDingbats': true
+};
+
+// Glyph map for well-known standard fonts. Sometimes Ghostscript uses CID fonts
+// but does not embed the CID to GID mapping. The mapping is incomplete for all
+// glyphs, but common for some set of the standard fonts.
+var GlyphMapForStandardFonts = {
+ '2': 10, '3': 32, '4': 33, '5': 34, '6': 35, '7': 36, '8': 37, '9': 38,
+ '10': 39, '11': 40, '12': 41, '13': 42, '14': 43, '15': 44, '16': 45,
+ '17': 46, '18': 47, '19': 48, '20': 49, '21': 50, '22': 51, '23': 52,
+ '24': 53, '25': 54, '26': 55, '27': 56, '28': 57, '29': 58, '30': 894,
+ '31': 60, '32': 61, '33': 62, '34': 63, '35': 64, '36': 65, '37': 66,
+ '38': 67, '39': 68, '40': 69, '41': 70, '42': 71, '43': 72, '44': 73,
+ '45': 74, '46': 75, '47': 76, '48': 77, '49': 78, '50': 79, '51': 80,
+ '52': 81, '53': 82, '54': 83, '55': 84, '56': 85, '57': 86, '58': 87,
+ '59': 88, '60': 89, '61': 90, '62': 91, '63': 92, '64': 93, '65': 94,
+ '66': 95, '67': 96, '68': 97, '69': 98, '70': 99, '71': 100, '72': 101,
+ '73': 102, '74': 103, '75': 104, '76': 105, '77': 106, '78': 107, '79': 108,
+ '80': 109, '81': 110, '82': 111, '83': 112, '84': 113, '85': 114, '86': 115,
+ '87': 116, '88': 117, '89': 118, '90': 119, '91': 120, '92': 121, '93': 122,
+ '94': 123, '95': 124, '96': 125, '97': 126, '98': 196, '99': 197, '100': 199,
+ '101': 201, '102': 209, '103': 214, '104': 220, '105': 225, '106': 224,
+ '107': 226, '108': 228, '109': 227, '110': 229, '111': 231, '112': 233,
+ '113': 232, '114': 234, '115': 235, '116': 237, '117': 236, '118': 238,
+ '119': 239, '120': 241, '121': 243, '122': 242, '123': 244, '124': 246,
+ '125': 245, '126': 250, '127': 249, '128': 251, '129': 252, '130': 8224,
+ '131': 176, '132': 162, '133': 163, '134': 167, '135': 8226, '136': 182,
+ '137': 223, '138': 174, '139': 169, '140': 8482, '141': 180, '142': 168,
+ '143': 8800, '144': 198, '145': 216, '146': 8734, '147': 177, '148': 8804,
+ '149': 8805, '150': 165, '151': 181, '152': 8706, '153': 8721, '154': 8719,
+ '156': 8747, '157': 170, '158': 186, '159': 8486, '160': 230, '161': 248,
+ '162': 191, '163': 161, '164': 172, '165': 8730, '166': 402, '167': 8776,
+ '168': 8710, '169': 171, '170': 187, '171': 8230, '210': 218, '223': 711,
+ '224': 321, '225': 322, '227': 353, '229': 382, '234': 253, '252': 263,
+ '253': 268, '254': 269, '258': 258, '260': 260, '261': 261, '265': 280,
+ '266': 281, '268': 283, '269': 313, '275': 323, '276': 324, '278': 328,
+ '284': 345, '285': 346, '286': 347, '292': 367, '295': 377, '296': 378,
+ '298': 380, '305': 963,
+ '306': 964, '307': 966, '308': 8215, '309': 8252, '310': 8319, '311': 8359,
+ '312': 8592, '313': 8593, '337': 9552, '493': 1039, '494': 1040, '705': 1524,
+ '706': 8362, '710': 64288, '711': 64298, '759': 1617, '761': 1776,
+ '763': 1778, '775': 1652, '777': 1764, '778': 1780, '779': 1781, '780': 1782,
+ '782': 771, '783': 64726, '786': 8363, '788': 8532, '790': 768, '791': 769,
+ '792': 768, '795': 803, '797': 64336, '798': 64337, '799': 64342,
+ '800': 64343, '801': 64344, '802': 64345, '803': 64362, '804': 64363,
+ '805': 64364, '2424': 7821, '2425': 7822, '2426': 7823, '2427': 7824,
+ '2428': 7825, '2429': 7826, '2430': 7827, '2433': 7682, '2678': 8045,
+ '2679': 8046, '2830': 1552, '2838': 686, '2840': 751, '2842': 753,
+ '2843': 754, '2844': 755, '2846': 757, '2856': 767, '2857': 848, '2858': 849,
+ '2862': 853, '2863': 854, '2864': 855, '2865': 861, '2866': 862, '2906': 7460,
+ '2908': 7462, '2909': 7463, '2910': 7464, '2912': 7466, '2913': 7467,
+ '2914': 7468, '2916': 7470, '2917': 7471, '2918': 7472, '2920': 7474,
+ '2921': 7475, '2922': 7476, '2924': 7478, '2925': 7479, '2926': 7480,
+ '2928': 7482, '2929': 7483, '2930': 7484, '2932': 7486, '2933': 7487,
+ '2934': 7488, '2936': 7490, '2937': 7491, '2938': 7492, '2940': 7494,
+ '2941': 7495, '2942': 7496, '2944': 7498, '2946': 7500, '2948': 7502,
+ '2950': 7504, '2951': 7505, '2952': 7506, '2954': 7508, '2955': 7509,
+ '2956': 7510, '2958': 7512, '2959': 7513, '2960': 7514, '2962': 7516,
+ '2963': 7517, '2964': 7518, '2966': 7520, '2967': 7521, '2968': 7522,
+ '2970': 7524, '2971': 7525, '2972': 7526, '2974': 7528, '2975': 7529,
+ '2976': 7530, '2978': 1537, '2979': 1538, '2980': 1539, '2982': 1549,
+ '2983': 1551, '2984': 1552, '2986': 1554, '2987': 1555, '2988': 1556,
+ '2990': 1623, '2991': 1624, '2995': 1775, '2999': 1791, '3002': 64290,
+ '3003': 64291, '3004': 64292, '3006': 64294, '3007': 64295, '3008': 64296,
+ '3011': 1900, '3014': 8223, '3015': 8244, '3017': 7532, '3018': 7533,
+ '3019': 7534, '3075': 7590, '3076': 7591, '3079': 7594, '3080': 7595,
+ '3083': 7598, '3084': 7599, '3087': 7602, '3088': 7603, '3091': 7606,
+ '3092': 7607, '3095': 7610, '3096': 7611, '3099': 7614, '3100': 7615,
+ '3103': 7618, '3104': 7619, '3107': 8337, '3108': 8338, '3116': 1884,
+ '3119': 1885, '3120': 1885, '3123': 1886, '3124': 1886, '3127': 1887,
+ '3128': 1887, '3131': 1888, '3132': 1888, '3135': 1889, '3136': 1889,
+ '3139': 1890, '3140': 1890, '3143': 1891, '3144': 1891, '3147': 1892,
+ '3148': 1892, '3153': 580, '3154': 581, '3157': 584, '3158': 585, '3161': 588,
+ '3162': 589, '3165': 891, '3166': 892, '3169': 1274, '3170': 1275,
+ '3173': 1278, '3174': 1279, '3181': 7622, '3182': 7623, '3282': 11799,
+ '3316': 578, '3379': 42785, '3393': 1159, '3416': 8377
+};
+
+// Some characters, e.g. copyrightserif, are mapped to the private use area and
+// might not be displayed using standard fonts. Mapping/hacking well-known chars
+// to the similar equivalents in the normal characters range.
+var SpecialPUASymbols = {
+ '63721': 0x00A9, // copyrightsans (0xF8E9) => copyright
+ '63193': 0x00A9, // copyrightserif (0xF6D9) => copyright
+ '63720': 0x00AE, // registersans (0xF8E8) => registered
+ '63194': 0x00AE, // registerserif (0xF6DA) => registered
+ '63722': 0x2122, // trademarksans (0xF8EA) => trademark
+ '63195': 0x2122, // trademarkserif (0xF6DB) => trademark
+ '63729': 0x23A7, // bracelefttp (0xF8F1)
+ '63730': 0x23A8, // braceleftmid (0xF8F2)
+ '63731': 0x23A9, // braceleftbt (0xF8F3)
+ '63740': 0x23AB, // bracerighttp (0xF8FC)
+ '63741': 0x23AC, // bracerightmid (0xF8FD)
+ '63742': 0x23AD, // bracerightbt (0xF8FE)
+ '63726': 0x23A1, // bracketlefttp (0xF8EE)
+ '63727': 0x23A2, // bracketleftex (0xF8EF)
+ '63728': 0x23A3, // bracketleftbt (0xF8F0)
+ '63737': 0x23A4, // bracketrighttp (0xF8F9)
+ '63738': 0x23A5, // bracketrightex (0xF8FA)
+ '63739': 0x23A6, // bracketrightbt (0xF8FB)
+ '63723': 0x239B, // parenlefttp (0xF8EB)
+ '63724': 0x239C, // parenleftex (0xF8EC)
+ '63725': 0x239D, // parenleftbt (0xF8ED)
+ '63734': 0x239E, // parenrighttp (0xF8F6)
+ '63735': 0x239F, // parenrightex (0xF8F7)
+ '63736': 0x23A0, // parenrightbt (0xF8F8)
+};
+function mapSpecialUnicodeValues(code) {
+ if (code >= 0xFFF0 && code <= 0xFFFF) { // Specials unicode block.
+ return 0;
+ } else if (code >= 0xF600 && code <= 0xF8FF) {
+ return (SpecialPUASymbols[code] || code);
+ }
+ return code;
+}
+
+var UnicodeRanges = [
+ { 'begin': 0x0000, 'end': 0x007F }, // Basic Latin
+ { 'begin': 0x0080, 'end': 0x00FF }, // Latin-1 Supplement
+ { 'begin': 0x0100, 'end': 0x017F }, // Latin Extended-A
+ { 'begin': 0x0180, 'end': 0x024F }, // Latin Extended-B
+ { 'begin': 0x0250, 'end': 0x02AF }, // IPA Extensions
+ { 'begin': 0x02B0, 'end': 0x02FF }, // Spacing Modifier Letters
+ { 'begin': 0x0300, 'end': 0x036F }, // Combining Diacritical Marks
+ { 'begin': 0x0370, 'end': 0x03FF }, // Greek and Coptic
+ { 'begin': 0x2C80, 'end': 0x2CFF }, // Coptic
+ { 'begin': 0x0400, 'end': 0x04FF }, // Cyrillic
+ { 'begin': 0x0530, 'end': 0x058F }, // Armenian
+ { 'begin': 0x0590, 'end': 0x05FF }, // Hebrew
+ { 'begin': 0xA500, 'end': 0xA63F }, // Vai
+ { 'begin': 0x0600, 'end': 0x06FF }, // Arabic
+ { 'begin': 0x07C0, 'end': 0x07FF }, // NKo
+ { 'begin': 0x0900, 'end': 0x097F }, // Devanagari
+ { 'begin': 0x0980, 'end': 0x09FF }, // Bengali
+ { 'begin': 0x0A00, 'end': 0x0A7F }, // Gurmukhi
+ { 'begin': 0x0A80, 'end': 0x0AFF }, // Gujarati
+ { 'begin': 0x0B00, 'end': 0x0B7F }, // Oriya
+ { 'begin': 0x0B80, 'end': 0x0BFF }, // Tamil
+ { 'begin': 0x0C00, 'end': 0x0C7F }, // Telugu
+ { 'begin': 0x0C80, 'end': 0x0CFF }, // Kannada
+ { 'begin': 0x0D00, 'end': 0x0D7F }, // Malayalam
+ { 'begin': 0x0E00, 'end': 0x0E7F }, // Thai
+ { 'begin': 0x0E80, 'end': 0x0EFF }, // Lao
+ { 'begin': 0x10A0, 'end': 0x10FF }, // Georgian
+ { 'begin': 0x1B00, 'end': 0x1B7F }, // Balinese
+ { 'begin': 0x1100, 'end': 0x11FF }, // Hangul Jamo
+ { 'begin': 0x1E00, 'end': 0x1EFF }, // Latin Extended Additional
+ { 'begin': 0x1F00, 'end': 0x1FFF }, // Greek Extended
+ { 'begin': 0x2000, 'end': 0x206F }, // General Punctuation
+ { 'begin': 0x2070, 'end': 0x209F }, // Superscripts And Subscripts
+ { 'begin': 0x20A0, 'end': 0x20CF }, // Currency Symbol
+ { 'begin': 0x20D0, 'end': 0x20FF }, // Combining Diacritical Marks For Symbols
+ { 'begin': 0x2100, 'end': 0x214F }, // Letterlike Symbols
+ { 'begin': 0x2150, 'end': 0x218F }, // Number Forms
+ { 'begin': 0x2190, 'end': 0x21FF }, // Arrows
+ { 'begin': 0x2200, 'end': 0x22FF }, // Mathematical Operators
+ { 'begin': 0x2300, 'end': 0x23FF }, // Miscellaneous Technical
+ { 'begin': 0x2400, 'end': 0x243F }, // Control Pictures
+ { 'begin': 0x2440, 'end': 0x245F }, // Optical Character Recognition
+ { 'begin': 0x2460, 'end': 0x24FF }, // Enclosed Alphanumerics
+ { 'begin': 0x2500, 'end': 0x257F }, // Box Drawing
+ { 'begin': 0x2580, 'end': 0x259F }, // Block Elements
+ { 'begin': 0x25A0, 'end': 0x25FF }, // Geometric Shapes
+ { 'begin': 0x2600, 'end': 0x26FF }, // Miscellaneous Symbols
+ { 'begin': 0x2700, 'end': 0x27BF }, // Dingbats
+ { 'begin': 0x3000, 'end': 0x303F }, // CJK Symbols And Punctuation
+ { 'begin': 0x3040, 'end': 0x309F }, // Hiragana
+ { 'begin': 0x30A0, 'end': 0x30FF }, // Katakana
+ { 'begin': 0x3100, 'end': 0x312F }, // Bopomofo
+ { 'begin': 0x3130, 'end': 0x318F }, // Hangul Compatibility Jamo
+ { 'begin': 0xA840, 'end': 0xA87F }, // Phags-pa
+ { 'begin': 0x3200, 'end': 0x32FF }, // Enclosed CJK Letters And Months
+ { 'begin': 0x3300, 'end': 0x33FF }, // CJK Compatibility
+ { 'begin': 0xAC00, 'end': 0xD7AF }, // Hangul Syllables
+ { 'begin': 0xD800, 'end': 0xDFFF }, // Non-Plane 0 *
+ { 'begin': 0x10900, 'end': 0x1091F }, // Phoenicia
+ { 'begin': 0x4E00, 'end': 0x9FFF }, // CJK Unified Ideographs
+ { 'begin': 0xE000, 'end': 0xF8FF }, // Private Use Area (plane 0)
+ { 'begin': 0x31C0, 'end': 0x31EF }, // CJK Strokes
+ { 'begin': 0xFB00, 'end': 0xFB4F }, // Alphabetic Presentation Forms
+ { 'begin': 0xFB50, 'end': 0xFDFF }, // Arabic Presentation Forms-A
+ { 'begin': 0xFE20, 'end': 0xFE2F }, // Combining Half Marks
+ { 'begin': 0xFE10, 'end': 0xFE1F }, // Vertical Forms
+ { 'begin': 0xFE50, 'end': 0xFE6F }, // Small Form Variants
+ { 'begin': 0xFE70, 'end': 0xFEFF }, // Arabic Presentation Forms-B
+ { 'begin': 0xFF00, 'end': 0xFFEF }, // Halfwidth And Fullwidth Forms
+ { 'begin': 0xFFF0, 'end': 0xFFFF }, // Specials
+ { 'begin': 0x0F00, 'end': 0x0FFF }, // Tibetan
+ { 'begin': 0x0700, 'end': 0x074F }, // Syriac
+ { 'begin': 0x0780, 'end': 0x07BF }, // Thaana
+ { 'begin': 0x0D80, 'end': 0x0DFF }, // Sinhala
+ { 'begin': 0x1000, 'end': 0x109F }, // Myanmar
+ { 'begin': 0x1200, 'end': 0x137F }, // Ethiopic
+ { 'begin': 0x13A0, 'end': 0x13FF }, // Cherokee
+ { 'begin': 0x1400, 'end': 0x167F }, // Unified Canadian Aboriginal Syllabics
+ { 'begin': 0x1680, 'end': 0x169F }, // Ogham
+ { 'begin': 0x16A0, 'end': 0x16FF }, // Runic
+ { 'begin': 0x1780, 'end': 0x17FF }, // Khmer
+ { 'begin': 0x1800, 'end': 0x18AF }, // Mongolian
+ { 'begin': 0x2800, 'end': 0x28FF }, // Braille Patterns
+ { 'begin': 0xA000, 'end': 0xA48F }, // Yi Syllables
+ { 'begin': 0x1700, 'end': 0x171F }, // Tagalog
+ { 'begin': 0x10300, 'end': 0x1032F }, // Old Italic
+ { 'begin': 0x10330, 'end': 0x1034F }, // Gothic
+ { 'begin': 0x10400, 'end': 0x1044F }, // Deseret
+ { 'begin': 0x1D000, 'end': 0x1D0FF }, // Byzantine Musical Symbols
+ { 'begin': 0x1D400, 'end': 0x1D7FF }, // Mathematical Alphanumeric Symbols
+ { 'begin': 0xFF000, 'end': 0xFFFFD }, // Private Use (plane 15)
+ { 'begin': 0xFE00, 'end': 0xFE0F }, // Variation Selectors
+ { 'begin': 0xE0000, 'end': 0xE007F }, // Tags
+ { 'begin': 0x1900, 'end': 0x194F }, // Limbu
+ { 'begin': 0x1950, 'end': 0x197F }, // Tai Le
+ { 'begin': 0x1980, 'end': 0x19DF }, // New Tai Lue
+ { 'begin': 0x1A00, 'end': 0x1A1F }, // Buginese
+ { 'begin': 0x2C00, 'end': 0x2C5F }, // Glagolitic
+ { 'begin': 0x2D30, 'end': 0x2D7F }, // Tifinagh
+ { 'begin': 0x4DC0, 'end': 0x4DFF }, // Yijing Hexagram Symbols
+ { 'begin': 0xA800, 'end': 0xA82F }, // Syloti Nagri
+ { 'begin': 0x10000, 'end': 0x1007F }, // Linear B Syllabary
+ { 'begin': 0x10140, 'end': 0x1018F }, // Ancient Greek Numbers
+ { 'begin': 0x10380, 'end': 0x1039F }, // Ugaritic
+ { 'begin': 0x103A0, 'end': 0x103DF }, // Old Persian
+ { 'begin': 0x10450, 'end': 0x1047F }, // Shavian
+ { 'begin': 0x10480, 'end': 0x104AF }, // Osmanya
+ { 'begin': 0x10800, 'end': 0x1083F }, // Cypriot Syllabary
+ { 'begin': 0x10A00, 'end': 0x10A5F }, // Kharoshthi
+ { 'begin': 0x1D300, 'end': 0x1D35F }, // Tai Xuan Jing Symbols
+ { 'begin': 0x12000, 'end': 0x123FF }, // Cuneiform
+ { 'begin': 0x1D360, 'end': 0x1D37F }, // Counting Rod Numerals
+ { 'begin': 0x1B80, 'end': 0x1BBF }, // Sundanese
+ { 'begin': 0x1C00, 'end': 0x1C4F }, // Lepcha
+ { 'begin': 0x1C50, 'end': 0x1C7F }, // Ol Chiki
+ { 'begin': 0xA880, 'end': 0xA8DF }, // Saurashtra
+ { 'begin': 0xA900, 'end': 0xA92F }, // Kayah Li
+ { 'begin': 0xA930, 'end': 0xA95F }, // Rejang
+ { 'begin': 0xAA00, 'end': 0xAA5F }, // Cham
+ { 'begin': 0x10190, 'end': 0x101CF }, // Ancient Symbols
+ { 'begin': 0x101D0, 'end': 0x101FF }, // Phaistos Disc
+ { 'begin': 0x102A0, 'end': 0x102DF }, // Carian
+ { 'begin': 0x1F030, 'end': 0x1F09F } // Domino Tiles
+];
+
+var MacStandardGlyphOrdering = [
+ '.notdef', '.null', 'nonmarkingreturn', 'space', 'exclam', 'quotedbl',
+ 'numbersign', 'dollar', 'percent', 'ampersand', 'quotesingle', 'parenleft',
+ 'parenright', 'asterisk', 'plus', 'comma', 'hyphen', 'period', 'slash',
+ 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight',
+ 'nine', 'colon', 'semicolon', 'less', 'equal', 'greater', 'question', 'at',
+ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
+ 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'bracketleft',
+ 'backslash', 'bracketright', 'asciicircum', 'underscore', 'grave', 'a', 'b',
+ 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q',
+ 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'braceleft', 'bar', 'braceright',
+ 'asciitilde', 'Adieresis', 'Aring', 'Ccedilla', 'Eacute', 'Ntilde',
+ 'Odieresis', 'Udieresis', 'aacute', 'agrave', 'acircumflex', 'adieresis',
+ 'atilde', 'aring', 'ccedilla', 'eacute', 'egrave', 'ecircumflex', 'edieresis',
+ 'iacute', 'igrave', 'icircumflex', 'idieresis', 'ntilde', 'oacute', 'ograve',
+ 'ocircumflex', 'odieresis', 'otilde', 'uacute', 'ugrave', 'ucircumflex',
+ 'udieresis', 'dagger', 'degree', 'cent', 'sterling', 'section', 'bullet',
+ 'paragraph', 'germandbls', 'registered', 'copyright', 'trademark', 'acute',
+ 'dieresis', 'notequal', 'AE', 'Oslash', 'infinity', 'plusminus', 'lessequal',
+ 'greaterequal', 'yen', 'mu', 'partialdiff', 'summation', 'product', 'pi',
+ 'integral', 'ordfeminine', 'ordmasculine', 'Omega', 'ae', 'oslash',
+ 'questiondown', 'exclamdown', 'logicalnot', 'radical', 'florin',
+ 'approxequal', 'Delta', 'guillemotleft', 'guillemotright', 'ellipsis',
+ 'nonbreakingspace', 'Agrave', 'Atilde', 'Otilde', 'OE', 'oe', 'endash',
+ 'emdash', 'quotedblleft', 'quotedblright', 'quoteleft', 'quoteright',
+ 'divide', 'lozenge', 'ydieresis', 'Ydieresis', 'fraction', 'currency',
+ 'guilsinglleft', 'guilsinglright', 'fi', 'fl', 'daggerdbl', 'periodcentered',
+ 'quotesinglbase', 'quotedblbase', 'perthousand', 'Acircumflex',
+ 'Ecircumflex', 'Aacute', 'Edieresis', 'Egrave', 'Iacute', 'Icircumflex',
+ 'Idieresis', 'Igrave', 'Oacute', 'Ocircumflex', 'apple', 'Ograve', 'Uacute',
+ 'Ucircumflex', 'Ugrave', 'dotlessi', 'circumflex', 'tilde', 'macron',
+ 'breve', 'dotaccent', 'ring', 'cedilla', 'hungarumlaut', 'ogonek', 'caron',
+ 'Lslash', 'lslash', 'Scaron', 'scaron', 'Zcaron', 'zcaron', 'brokenbar',
+ 'Eth', 'eth', 'Yacute', 'yacute', 'Thorn', 'thorn', 'minus', 'multiply',
+ 'onesuperior', 'twosuperior', 'threesuperior', 'onehalf', 'onequarter',
+ 'threequarters', 'franc', 'Gbreve', 'gbreve', 'Idotaccent', 'Scedilla',
+ 'scedilla', 'Cacute', 'cacute', 'Ccaron', 'ccaron', 'dcroat'];
+
+function getUnicodeRangeFor(value) {
+ for (var i = 0, ii = UnicodeRanges.length; i < ii; i++) {
+ var range = UnicodeRanges[i];
+ if (value >= range.begin && value < range.end) {
+ return i;
+ }
+ }
+ return -1;
+}
+
+function isRTLRangeFor(value) {
+ var range = UnicodeRanges[13];
+ if (value >= range.begin && value < range.end) {
+ return true;
+ }
+ range = UnicodeRanges[11];
+ if (value >= range.begin && value < range.end) {
+ return true;
+ }
+ return false;
+}
+
+// The normalization table is obtained by filtering the Unicode characters
+// database with <compat> entries.
+var NormalizedUnicodes = {
+ '\u00A8': '\u0020\u0308',
+ '\u00AF': '\u0020\u0304',
+ '\u00B4': '\u0020\u0301',
+ '\u00B5': '\u03BC',
+ '\u00B8': '\u0020\u0327',
+ '\u0132': '\u0049\u004A',
+ '\u0133': '\u0069\u006A',
+ '\u013F': '\u004C\u00B7',
+ '\u0140': '\u006C\u00B7',
+ '\u0149': '\u02BC\u006E',
+ '\u017F': '\u0073',
+ '\u01C4': '\u0044\u017D',
+ '\u01C5': '\u0044\u017E',
+ '\u01C6': '\u0064\u017E',
+ '\u01C7': '\u004C\u004A',
+ '\u01C8': '\u004C\u006A',
+ '\u01C9': '\u006C\u006A',
+ '\u01CA': '\u004E\u004A',
+ '\u01CB': '\u004E\u006A',
+ '\u01CC': '\u006E\u006A',
+ '\u01F1': '\u0044\u005A',
+ '\u01F2': '\u0044\u007A',
+ '\u01F3': '\u0064\u007A',
+ '\u02D8': '\u0020\u0306',
+ '\u02D9': '\u0020\u0307',
+ '\u02DA': '\u0020\u030A',
+ '\u02DB': '\u0020\u0328',
+ '\u02DC': '\u0020\u0303',
+ '\u02DD': '\u0020\u030B',
+ '\u037A': '\u0020\u0345',
+ '\u0384': '\u0020\u0301',
+ '\u03D0': '\u03B2',
+ '\u03D1': '\u03B8',
+ '\u03D2': '\u03A5',
+ '\u03D5': '\u03C6',
+ '\u03D6': '\u03C0',
+ '\u03F0': '\u03BA',
+ '\u03F1': '\u03C1',
+ '\u03F2': '\u03C2',
+ '\u03F4': '\u0398',
+ '\u03F5': '\u03B5',
+ '\u03F9': '\u03A3',
+ '\u0587': '\u0565\u0582',
+ '\u0675': '\u0627\u0674',
+ '\u0676': '\u0648\u0674',
+ '\u0677': '\u06C7\u0674',
+ '\u0678': '\u064A\u0674',
+ '\u0E33': '\u0E4D\u0E32',
+ '\u0EB3': '\u0ECD\u0EB2',
+ '\u0EDC': '\u0EAB\u0E99',
+ '\u0EDD': '\u0EAB\u0EA1',
+ '\u0F77': '\u0FB2\u0F81',
+ '\u0F79': '\u0FB3\u0F81',
+ '\u1E9A': '\u0061\u02BE',
+ '\u1FBD': '\u0020\u0313',
+ '\u1FBF': '\u0020\u0313',
+ '\u1FC0': '\u0020\u0342',
+ '\u1FFE': '\u0020\u0314',
+ '\u2002': '\u0020',
+ '\u2003': '\u0020',
+ '\u2004': '\u0020',
+ '\u2005': '\u0020',
+ '\u2006': '\u0020',
+ '\u2008': '\u0020',
+ '\u2009': '\u0020',
+ '\u200A': '\u0020',
+ '\u2017': '\u0020\u0333',
+ '\u2024': '\u002E',
+ '\u2025': '\u002E\u002E',
+ '\u2026': '\u002E\u002E\u002E',
+ '\u2033': '\u2032\u2032',
+ '\u2034': '\u2032\u2032\u2032',
+ '\u2036': '\u2035\u2035',
+ '\u2037': '\u2035\u2035\u2035',
+ '\u203C': '\u0021\u0021',
+ '\u203E': '\u0020\u0305',
+ '\u2047': '\u003F\u003F',
+ '\u2048': '\u003F\u0021',
+ '\u2049': '\u0021\u003F',
+ '\u2057': '\u2032\u2032\u2032\u2032',
+ '\u205F': '\u0020',
+ '\u20A8': '\u0052\u0073',
+ '\u2100': '\u0061\u002F\u0063',
+ '\u2101': '\u0061\u002F\u0073',
+ '\u2103': '\u00B0\u0043',
+ '\u2105': '\u0063\u002F\u006F',
+ '\u2106': '\u0063\u002F\u0075',
+ '\u2107': '\u0190',
+ '\u2109': '\u00B0\u0046',
+ '\u2116': '\u004E\u006F',
+ '\u2121': '\u0054\u0045\u004C',
+ '\u2135': '\u05D0',
+ '\u2136': '\u05D1',
+ '\u2137': '\u05D2',
+ '\u2138': '\u05D3',
+ '\u213B': '\u0046\u0041\u0058',
+ '\u2160': '\u0049',
+ '\u2161': '\u0049\u0049',
+ '\u2162': '\u0049\u0049\u0049',
+ '\u2163': '\u0049\u0056',
+ '\u2164': '\u0056',
+ '\u2165': '\u0056\u0049',
+ '\u2166': '\u0056\u0049\u0049',
+ '\u2167': '\u0056\u0049\u0049\u0049',
+ '\u2168': '\u0049\u0058',
+ '\u2169': '\u0058',
+ '\u216A': '\u0058\u0049',
+ '\u216B': '\u0058\u0049\u0049',
+ '\u216C': '\u004C',
+ '\u216D': '\u0043',
+ '\u216E': '\u0044',
+ '\u216F': '\u004D',
+ '\u2170': '\u0069',
+ '\u2171': '\u0069\u0069',
+ '\u2172': '\u0069\u0069\u0069',
+ '\u2173': '\u0069\u0076',
+ '\u2174': '\u0076',
+ '\u2175': '\u0076\u0069',
+ '\u2176': '\u0076\u0069\u0069',
+ '\u2177': '\u0076\u0069\u0069\u0069',
+ '\u2178': '\u0069\u0078',
+ '\u2179': '\u0078',
+ '\u217A': '\u0078\u0069',
+ '\u217B': '\u0078\u0069\u0069',
+ '\u217C': '\u006C',
+ '\u217D': '\u0063',
+ '\u217E': '\u0064',
+ '\u217F': '\u006D',
+ '\u222C': '\u222B\u222B',
+ '\u222D': '\u222B\u222B\u222B',
+ '\u222F': '\u222E\u222E',
+ '\u2230': '\u222E\u222E\u222E',
+ '\u2474': '\u0028\u0031\u0029',
+ '\u2475': '\u0028\u0032\u0029',
+ '\u2476': '\u0028\u0033\u0029',
+ '\u2477': '\u0028\u0034\u0029',
+ '\u2478': '\u0028\u0035\u0029',
+ '\u2479': '\u0028\u0036\u0029',
+ '\u247A': '\u0028\u0037\u0029',
+ '\u247B': '\u0028\u0038\u0029',
+ '\u247C': '\u0028\u0039\u0029',
+ '\u247D': '\u0028\u0031\u0030\u0029',
+ '\u247E': '\u0028\u0031\u0031\u0029',
+ '\u247F': '\u0028\u0031\u0032\u0029',
+ '\u2480': '\u0028\u0031\u0033\u0029',
+ '\u2481': '\u0028\u0031\u0034\u0029',
+ '\u2482': '\u0028\u0031\u0035\u0029',
+ '\u2483': '\u0028\u0031\u0036\u0029',
+ '\u2484': '\u0028\u0031\u0037\u0029',
+ '\u2485': '\u0028\u0031\u0038\u0029',
+ '\u2486': '\u0028\u0031\u0039\u0029',
+ '\u2487': '\u0028\u0032\u0030\u0029',
+ '\u2488': '\u0031\u002E',
+ '\u2489': '\u0032\u002E',
+ '\u248A': '\u0033\u002E',
+ '\u248B': '\u0034\u002E',
+ '\u248C': '\u0035\u002E',
+ '\u248D': '\u0036\u002E',
+ '\u248E': '\u0037\u002E',
+ '\u248F': '\u0038\u002E',
+ '\u2490': '\u0039\u002E',
+ '\u2491': '\u0031\u0030\u002E',
+ '\u2492': '\u0031\u0031\u002E',
+ '\u2493': '\u0031\u0032\u002E',
+ '\u2494': '\u0031\u0033\u002E',
+ '\u2495': '\u0031\u0034\u002E',
+ '\u2496': '\u0031\u0035\u002E',
+ '\u2497': '\u0031\u0036\u002E',
+ '\u2498': '\u0031\u0037\u002E',
+ '\u2499': '\u0031\u0038\u002E',
+ '\u249A': '\u0031\u0039\u002E',
+ '\u249B': '\u0032\u0030\u002E',
+ '\u249C': '\u0028\u0061\u0029',
+ '\u249D': '\u0028\u0062\u0029',
+ '\u249E': '\u0028\u0063\u0029',
+ '\u249F': '\u0028\u0064\u0029',
+ '\u24A0': '\u0028\u0065\u0029',
+ '\u24A1': '\u0028\u0066\u0029',
+ '\u24A2': '\u0028\u0067\u0029',
+ '\u24A3': '\u0028\u0068\u0029',
+ '\u24A4': '\u0028\u0069\u0029',
+ '\u24A5': '\u0028\u006A\u0029',
+ '\u24A6': '\u0028\u006B\u0029',
+ '\u24A7': '\u0028\u006C\u0029',
+ '\u24A8': '\u0028\u006D\u0029',
+ '\u24A9': '\u0028\u006E\u0029',
+ '\u24AA': '\u0028\u006F\u0029',
+ '\u24AB': '\u0028\u0070\u0029',
+ '\u24AC': '\u0028\u0071\u0029',
+ '\u24AD': '\u0028\u0072\u0029',
+ '\u24AE': '\u0028\u0073\u0029',
+ '\u24AF': '\u0028\u0074\u0029',
+ '\u24B0': '\u0028\u0075\u0029',
+ '\u24B1': '\u0028\u0076\u0029',
+ '\u24B2': '\u0028\u0077\u0029',
+ '\u24B3': '\u0028\u0078\u0029',
+ '\u24B4': '\u0028\u0079\u0029',
+ '\u24B5': '\u0028\u007A\u0029',
+ '\u2A0C': '\u222B\u222B\u222B\u222B',
+ '\u2A74': '\u003A\u003A\u003D',
+ '\u2A75': '\u003D\u003D',
+ '\u2A76': '\u003D\u003D\u003D',
+ '\u2E9F': '\u6BCD',
+ '\u2EF3': '\u9F9F',
+ '\u2F00': '\u4E00',
+ '\u2F01': '\u4E28',
+ '\u2F02': '\u4E36',
+ '\u2F03': '\u4E3F',
+ '\u2F04': '\u4E59',
+ '\u2F05': '\u4E85',
+ '\u2F06': '\u4E8C',
+ '\u2F07': '\u4EA0',
+ '\u2F08': '\u4EBA',
+ '\u2F09': '\u513F',
+ '\u2F0A': '\u5165',
+ '\u2F0B': '\u516B',
+ '\u2F0C': '\u5182',
+ '\u2F0D': '\u5196',
+ '\u2F0E': '\u51AB',
+ '\u2F0F': '\u51E0',
+ '\u2F10': '\u51F5',
+ '\u2F11': '\u5200',
+ '\u2F12': '\u529B',
+ '\u2F13': '\u52F9',
+ '\u2F14': '\u5315',
+ '\u2F15': '\u531A',
+ '\u2F16': '\u5338',
+ '\u2F17': '\u5341',
+ '\u2F18': '\u535C',
+ '\u2F19': '\u5369',
+ '\u2F1A': '\u5382',
+ '\u2F1B': '\u53B6',
+ '\u2F1C': '\u53C8',
+ '\u2F1D': '\u53E3',
+ '\u2F1E': '\u56D7',
+ '\u2F1F': '\u571F',
+ '\u2F20': '\u58EB',
+ '\u2F21': '\u5902',
+ '\u2F22': '\u590A',
+ '\u2F23': '\u5915',
+ '\u2F24': '\u5927',
+ '\u2F25': '\u5973',
+ '\u2F26': '\u5B50',
+ '\u2F27': '\u5B80',
+ '\u2F28': '\u5BF8',
+ '\u2F29': '\u5C0F',
+ '\u2F2A': '\u5C22',
+ '\u2F2B': '\u5C38',
+ '\u2F2C': '\u5C6E',
+ '\u2F2D': '\u5C71',
+ '\u2F2E': '\u5DDB',
+ '\u2F2F': '\u5DE5',
+ '\u2F30': '\u5DF1',
+ '\u2F31': '\u5DFE',
+ '\u2F32': '\u5E72',
+ '\u2F33': '\u5E7A',
+ '\u2F34': '\u5E7F',
+ '\u2F35': '\u5EF4',
+ '\u2F36': '\u5EFE',
+ '\u2F37': '\u5F0B',
+ '\u2F38': '\u5F13',
+ '\u2F39': '\u5F50',
+ '\u2F3A': '\u5F61',
+ '\u2F3B': '\u5F73',
+ '\u2F3C': '\u5FC3',
+ '\u2F3D': '\u6208',
+ '\u2F3E': '\u6236',
+ '\u2F3F': '\u624B',
+ '\u2F40': '\u652F',
+ '\u2F41': '\u6534',
+ '\u2F42': '\u6587',
+ '\u2F43': '\u6597',
+ '\u2F44': '\u65A4',
+ '\u2F45': '\u65B9',
+ '\u2F46': '\u65E0',
+ '\u2F47': '\u65E5',
+ '\u2F48': '\u66F0',
+ '\u2F49': '\u6708',
+ '\u2F4A': '\u6728',
+ '\u2F4B': '\u6B20',
+ '\u2F4C': '\u6B62',
+ '\u2F4D': '\u6B79',
+ '\u2F4E': '\u6BB3',
+ '\u2F4F': '\u6BCB',
+ '\u2F50': '\u6BD4',
+ '\u2F51': '\u6BDB',
+ '\u2F52': '\u6C0F',
+ '\u2F53': '\u6C14',
+ '\u2F54': '\u6C34',
+ '\u2F55': '\u706B',
+ '\u2F56': '\u722A',
+ '\u2F57': '\u7236',
+ '\u2F58': '\u723B',
+ '\u2F59': '\u723F',
+ '\u2F5A': '\u7247',
+ '\u2F5B': '\u7259',
+ '\u2F5C': '\u725B',
+ '\u2F5D': '\u72AC',
+ '\u2F5E': '\u7384',
+ '\u2F5F': '\u7389',
+ '\u2F60': '\u74DC',
+ '\u2F61': '\u74E6',
+ '\u2F62': '\u7518',
+ '\u2F63': '\u751F',
+ '\u2F64': '\u7528',
+ '\u2F65': '\u7530',
+ '\u2F66': '\u758B',
+ '\u2F67': '\u7592',
+ '\u2F68': '\u7676',
+ '\u2F69': '\u767D',
+ '\u2F6A': '\u76AE',
+ '\u2F6B': '\u76BF',
+ '\u2F6C': '\u76EE',
+ '\u2F6D': '\u77DB',
+ '\u2F6E': '\u77E2',
+ '\u2F6F': '\u77F3',
+ '\u2F70': '\u793A',
+ '\u2F71': '\u79B8',
+ '\u2F72': '\u79BE',
+ '\u2F73': '\u7A74',
+ '\u2F74': '\u7ACB',
+ '\u2F75': '\u7AF9',
+ '\u2F76': '\u7C73',
+ '\u2F77': '\u7CF8',
+ '\u2F78': '\u7F36',
+ '\u2F79': '\u7F51',
+ '\u2F7A': '\u7F8A',
+ '\u2F7B': '\u7FBD',
+ '\u2F7C': '\u8001',
+ '\u2F7D': '\u800C',
+ '\u2F7E': '\u8012',
+ '\u2F7F': '\u8033',
+ '\u2F80': '\u807F',
+ '\u2F81': '\u8089',
+ '\u2F82': '\u81E3',
+ '\u2F83': '\u81EA',
+ '\u2F84': '\u81F3',
+ '\u2F85': '\u81FC',
+ '\u2F86': '\u820C',
+ '\u2F87': '\u821B',
+ '\u2F88': '\u821F',
+ '\u2F89': '\u826E',
+ '\u2F8A': '\u8272',
+ '\u2F8B': '\u8278',
+ '\u2F8C': '\u864D',
+ '\u2F8D': '\u866B',
+ '\u2F8E': '\u8840',
+ '\u2F8F': '\u884C',
+ '\u2F90': '\u8863',
+ '\u2F91': '\u897E',
+ '\u2F92': '\u898B',
+ '\u2F93': '\u89D2',
+ '\u2F94': '\u8A00',
+ '\u2F95': '\u8C37',
+ '\u2F96': '\u8C46',
+ '\u2F97': '\u8C55',
+ '\u2F98': '\u8C78',
+ '\u2F99': '\u8C9D',
+ '\u2F9A': '\u8D64',
+ '\u2F9B': '\u8D70',
+ '\u2F9C': '\u8DB3',
+ '\u2F9D': '\u8EAB',
+ '\u2F9E': '\u8ECA',
+ '\u2F9F': '\u8F9B',
+ '\u2FA0': '\u8FB0',
+ '\u2FA1': '\u8FB5',
+ '\u2FA2': '\u9091',
+ '\u2FA3': '\u9149',
+ '\u2FA4': '\u91C6',
+ '\u2FA5': '\u91CC',
+ '\u2FA6': '\u91D1',
+ '\u2FA7': '\u9577',
+ '\u2FA8': '\u9580',
+ '\u2FA9': '\u961C',
+ '\u2FAA': '\u96B6',
+ '\u2FAB': '\u96B9',
+ '\u2FAC': '\u96E8',
+ '\u2FAD': '\u9751',
+ '\u2FAE': '\u975E',
+ '\u2FAF': '\u9762',
+ '\u2FB0': '\u9769',
+ '\u2FB1': '\u97CB',
+ '\u2FB2': '\u97ED',
+ '\u2FB3': '\u97F3',
+ '\u2FB4': '\u9801',
+ '\u2FB5': '\u98A8',
+ '\u2FB6': '\u98DB',
+ '\u2FB7': '\u98DF',
+ '\u2FB8': '\u9996',
+ '\u2FB9': '\u9999',
+ '\u2FBA': '\u99AC',
+ '\u2FBB': '\u9AA8',
+ '\u2FBC': '\u9AD8',
+ '\u2FBD': '\u9ADF',
+ '\u2FBE': '\u9B25',
+ '\u2FBF': '\u9B2F',
+ '\u2FC0': '\u9B32',
+ '\u2FC1': '\u9B3C',
+ '\u2FC2': '\u9B5A',
+ '\u2FC3': '\u9CE5',
+ '\u2FC4': '\u9E75',
+ '\u2FC5': '\u9E7F',
+ '\u2FC6': '\u9EA5',
+ '\u2FC7': '\u9EBB',
+ '\u2FC8': '\u9EC3',
+ '\u2FC9': '\u9ECD',
+ '\u2FCA': '\u9ED1',
+ '\u2FCB': '\u9EF9',
+ '\u2FCC': '\u9EFD',
+ '\u2FCD': '\u9F0E',
+ '\u2FCE': '\u9F13',
+ '\u2FCF': '\u9F20',
+ '\u2FD0': '\u9F3B',
+ '\u2FD1': '\u9F4A',
+ '\u2FD2': '\u9F52',
+ '\u2FD3': '\u9F8D',
+ '\u2FD4': '\u9F9C',
+ '\u2FD5': '\u9FA0',
+ '\u3036': '\u3012',
+ '\u3038': '\u5341',
+ '\u3039': '\u5344',
+ '\u303A': '\u5345',
+ '\u309B': '\u0020\u3099',
+ '\u309C': '\u0020\u309A',
+ '\u3131': '\u1100',
+ '\u3132': '\u1101',
+ '\u3133': '\u11AA',
+ '\u3134': '\u1102',
+ '\u3135': '\u11AC',
+ '\u3136': '\u11AD',
+ '\u3137': '\u1103',
+ '\u3138': '\u1104',
+ '\u3139': '\u1105',
+ '\u313A': '\u11B0',
+ '\u313B': '\u11B1',
+ '\u313C': '\u11B2',
+ '\u313D': '\u11B3',
+ '\u313E': '\u11B4',
+ '\u313F': '\u11B5',
+ '\u3140': '\u111A',
+ '\u3141': '\u1106',
+ '\u3142': '\u1107',
+ '\u3143': '\u1108',
+ '\u3144': '\u1121',
+ '\u3145': '\u1109',
+ '\u3146': '\u110A',
+ '\u3147': '\u110B',
+ '\u3148': '\u110C',
+ '\u3149': '\u110D',
+ '\u314A': '\u110E',
+ '\u314B': '\u110F',
+ '\u314C': '\u1110',
+ '\u314D': '\u1111',
+ '\u314E': '\u1112',
+ '\u314F': '\u1161',
+ '\u3150': '\u1162',
+ '\u3151': '\u1163',
+ '\u3152': '\u1164',
+ '\u3153': '\u1165',
+ '\u3154': '\u1166',
+ '\u3155': '\u1167',
+ '\u3156': '\u1168',
+ '\u3157': '\u1169',
+ '\u3158': '\u116A',
+ '\u3159': '\u116B',
+ '\u315A': '\u116C',
+ '\u315B': '\u116D',
+ '\u315C': '\u116E',
+ '\u315D': '\u116F',
+ '\u315E': '\u1170',
+ '\u315F': '\u1171',
+ '\u3160': '\u1172',
+ '\u3161': '\u1173',
+ '\u3162': '\u1174',
+ '\u3163': '\u1175',
+ '\u3164': '\u1160',
+ '\u3165': '\u1114',
+ '\u3166': '\u1115',
+ '\u3167': '\u11C7',
+ '\u3168': '\u11C8',
+ '\u3169': '\u11CC',
+ '\u316A': '\u11CE',
+ '\u316B': '\u11D3',
+ '\u316C': '\u11D7',
+ '\u316D': '\u11D9',
+ '\u316E': '\u111C',
+ '\u316F': '\u11DD',
+ '\u3170': '\u11DF',
+ '\u3171': '\u111D',
+ '\u3172': '\u111E',
+ '\u3173': '\u1120',
+ '\u3174': '\u1122',
+ '\u3175': '\u1123',
+ '\u3176': '\u1127',
+ '\u3177': '\u1129',
+ '\u3178': '\u112B',
+ '\u3179': '\u112C',
+ '\u317A': '\u112D',
+ '\u317B': '\u112E',
+ '\u317C': '\u112F',
+ '\u317D': '\u1132',
+ '\u317E': '\u1136',
+ '\u317F': '\u1140',
+ '\u3180': '\u1147',
+ '\u3181': '\u114C',
+ '\u3182': '\u11F1',
+ '\u3183': '\u11F2',
+ '\u3184': '\u1157',
+ '\u3185': '\u1158',
+ '\u3186': '\u1159',
+ '\u3187': '\u1184',
+ '\u3188': '\u1185',
+ '\u3189': '\u1188',
+ '\u318A': '\u1191',
+ '\u318B': '\u1192',
+ '\u318C': '\u1194',
+ '\u318D': '\u119E',
+ '\u318E': '\u11A1',
+ '\u3200': '\u0028\u1100\u0029',
+ '\u3201': '\u0028\u1102\u0029',
+ '\u3202': '\u0028\u1103\u0029',
+ '\u3203': '\u0028\u1105\u0029',
+ '\u3204': '\u0028\u1106\u0029',
+ '\u3205': '\u0028\u1107\u0029',
+ '\u3206': '\u0028\u1109\u0029',
+ '\u3207': '\u0028\u110B\u0029',
+ '\u3208': '\u0028\u110C\u0029',
+ '\u3209': '\u0028\u110E\u0029',
+ '\u320A': '\u0028\u110F\u0029',
+ '\u320B': '\u0028\u1110\u0029',
+ '\u320C': '\u0028\u1111\u0029',
+ '\u320D': '\u0028\u1112\u0029',
+ '\u320E': '\u0028\u1100\u1161\u0029',
+ '\u320F': '\u0028\u1102\u1161\u0029',
+ '\u3210': '\u0028\u1103\u1161\u0029',
+ '\u3211': '\u0028\u1105\u1161\u0029',
+ '\u3212': '\u0028\u1106\u1161\u0029',
+ '\u3213': '\u0028\u1107\u1161\u0029',
+ '\u3214': '\u0028\u1109\u1161\u0029',
+ '\u3215': '\u0028\u110B\u1161\u0029',
+ '\u3216': '\u0028\u110C\u1161\u0029',
+ '\u3217': '\u0028\u110E\u1161\u0029',
+ '\u3218': '\u0028\u110F\u1161\u0029',
+ '\u3219': '\u0028\u1110\u1161\u0029',
+ '\u321A': '\u0028\u1111\u1161\u0029',
+ '\u321B': '\u0028\u1112\u1161\u0029',
+ '\u321C': '\u0028\u110C\u116E\u0029',
+ '\u321D': '\u0028\u110B\u1169\u110C\u1165\u11AB\u0029',
+ '\u321E': '\u0028\u110B\u1169\u1112\u116E\u0029',
+ '\u3220': '\u0028\u4E00\u0029',
+ '\u3221': '\u0028\u4E8C\u0029',
+ '\u3222': '\u0028\u4E09\u0029',
+ '\u3223': '\u0028\u56DB\u0029',
+ '\u3224': '\u0028\u4E94\u0029',
+ '\u3225': '\u0028\u516D\u0029',
+ '\u3226': '\u0028\u4E03\u0029',
+ '\u3227': '\u0028\u516B\u0029',
+ '\u3228': '\u0028\u4E5D\u0029',
+ '\u3229': '\u0028\u5341\u0029',
+ '\u322A': '\u0028\u6708\u0029',
+ '\u322B': '\u0028\u706B\u0029',
+ '\u322C': '\u0028\u6C34\u0029',
+ '\u322D': '\u0028\u6728\u0029',
+ '\u322E': '\u0028\u91D1\u0029',
+ '\u322F': '\u0028\u571F\u0029',
+ '\u3230': '\u0028\u65E5\u0029',
+ '\u3231': '\u0028\u682A\u0029',
+ '\u3232': '\u0028\u6709\u0029',
+ '\u3233': '\u0028\u793E\u0029',
+ '\u3234': '\u0028\u540D\u0029',
+ '\u3235': '\u0028\u7279\u0029',
+ '\u3236': '\u0028\u8CA1\u0029',
+ '\u3237': '\u0028\u795D\u0029',
+ '\u3238': '\u0028\u52B4\u0029',
+ '\u3239': '\u0028\u4EE3\u0029',
+ '\u323A': '\u0028\u547C\u0029',
+ '\u323B': '\u0028\u5B66\u0029',
+ '\u323C': '\u0028\u76E3\u0029',
+ '\u323D': '\u0028\u4F01\u0029',
+ '\u323E': '\u0028\u8CC7\u0029',
+ '\u323F': '\u0028\u5354\u0029',
+ '\u3240': '\u0028\u796D\u0029',
+ '\u3241': '\u0028\u4F11\u0029',
+ '\u3242': '\u0028\u81EA\u0029',
+ '\u3243': '\u0028\u81F3\u0029',
+ '\u32C0': '\u0031\u6708',
+ '\u32C1': '\u0032\u6708',
+ '\u32C2': '\u0033\u6708',
+ '\u32C3': '\u0034\u6708',
+ '\u32C4': '\u0035\u6708',
+ '\u32C5': '\u0036\u6708',
+ '\u32C6': '\u0037\u6708',
+ '\u32C7': '\u0038\u6708',
+ '\u32C8': '\u0039\u6708',
+ '\u32C9': '\u0031\u0030\u6708',
+ '\u32CA': '\u0031\u0031\u6708',
+ '\u32CB': '\u0031\u0032\u6708',
+ '\u3358': '\u0030\u70B9',
+ '\u3359': '\u0031\u70B9',
+ '\u335A': '\u0032\u70B9',
+ '\u335B': '\u0033\u70B9',
+ '\u335C': '\u0034\u70B9',
+ '\u335D': '\u0035\u70B9',
+ '\u335E': '\u0036\u70B9',
+ '\u335F': '\u0037\u70B9',
+ '\u3360': '\u0038\u70B9',
+ '\u3361': '\u0039\u70B9',
+ '\u3362': '\u0031\u0030\u70B9',
+ '\u3363': '\u0031\u0031\u70B9',
+ '\u3364': '\u0031\u0032\u70B9',
+ '\u3365': '\u0031\u0033\u70B9',
+ '\u3366': '\u0031\u0034\u70B9',
+ '\u3367': '\u0031\u0035\u70B9',
+ '\u3368': '\u0031\u0036\u70B9',
+ '\u3369': '\u0031\u0037\u70B9',
+ '\u336A': '\u0031\u0038\u70B9',
+ '\u336B': '\u0031\u0039\u70B9',
+ '\u336C': '\u0032\u0030\u70B9',
+ '\u336D': '\u0032\u0031\u70B9',
+ '\u336E': '\u0032\u0032\u70B9',
+ '\u336F': '\u0032\u0033\u70B9',
+ '\u3370': '\u0032\u0034\u70B9',
+ '\u33E0': '\u0031\u65E5',
+ '\u33E1': '\u0032\u65E5',
+ '\u33E2': '\u0033\u65E5',
+ '\u33E3': '\u0034\u65E5',
+ '\u33E4': '\u0035\u65E5',
+ '\u33E5': '\u0036\u65E5',
+ '\u33E6': '\u0037\u65E5',
+ '\u33E7': '\u0038\u65E5',
+ '\u33E8': '\u0039\u65E5',
+ '\u33E9': '\u0031\u0030\u65E5',
+ '\u33EA': '\u0031\u0031\u65E5',
+ '\u33EB': '\u0031\u0032\u65E5',
+ '\u33EC': '\u0031\u0033\u65E5',
+ '\u33ED': '\u0031\u0034\u65E5',
+ '\u33EE': '\u0031\u0035\u65E5',
+ '\u33EF': '\u0031\u0036\u65E5',
+ '\u33F0': '\u0031\u0037\u65E5',
+ '\u33F1': '\u0031\u0038\u65E5',
+ '\u33F2': '\u0031\u0039\u65E5',
+ '\u33F3': '\u0032\u0030\u65E5',
+ '\u33F4': '\u0032\u0031\u65E5',
+ '\u33F5': '\u0032\u0032\u65E5',
+ '\u33F6': '\u0032\u0033\u65E5',
+ '\u33F7': '\u0032\u0034\u65E5',
+ '\u33F8': '\u0032\u0035\u65E5',
+ '\u33F9': '\u0032\u0036\u65E5',
+ '\u33FA': '\u0032\u0037\u65E5',
+ '\u33FB': '\u0032\u0038\u65E5',
+ '\u33FC': '\u0032\u0039\u65E5',
+ '\u33FD': '\u0033\u0030\u65E5',
+ '\u33FE': '\u0033\u0031\u65E5',
+ '\uFB00': '\u0066\u0066',
+ '\uFB01': '\u0066\u0069',
+ '\uFB02': '\u0066\u006C',
+ '\uFB03': '\u0066\u0066\u0069',
+ '\uFB04': '\u0066\u0066\u006C',
+ '\uFB05': '\u017F\u0074',
+ '\uFB06': '\u0073\u0074',
+ '\uFB13': '\u0574\u0576',
+ '\uFB14': '\u0574\u0565',
+ '\uFB15': '\u0574\u056B',
+ '\uFB16': '\u057E\u0576',
+ '\uFB17': '\u0574\u056D',
+ '\uFB4F': '\u05D0\u05DC',
+ '\uFB50': '\u0671',
+ '\uFB51': '\u0671',
+ '\uFB52': '\u067B',
+ '\uFB53': '\u067B',
+ '\uFB54': '\u067B',
+ '\uFB55': '\u067B',
+ '\uFB56': '\u067E',
+ '\uFB57': '\u067E',
+ '\uFB58': '\u067E',
+ '\uFB59': '\u067E',
+ '\uFB5A': '\u0680',
+ '\uFB5B': '\u0680',
+ '\uFB5C': '\u0680',
+ '\uFB5D': '\u0680',
+ '\uFB5E': '\u067A',
+ '\uFB5F': '\u067A',
+ '\uFB60': '\u067A',
+ '\uFB61': '\u067A',
+ '\uFB62': '\u067F',
+ '\uFB63': '\u067F',
+ '\uFB64': '\u067F',
+ '\uFB65': '\u067F',
+ '\uFB66': '\u0679',
+ '\uFB67': '\u0679',
+ '\uFB68': '\u0679',
+ '\uFB69': '\u0679',
+ '\uFB6A': '\u06A4',
+ '\uFB6B': '\u06A4',
+ '\uFB6C': '\u06A4',
+ '\uFB6D': '\u06A4',
+ '\uFB6E': '\u06A6',
+ '\uFB6F': '\u06A6',
+ '\uFB70': '\u06A6',
+ '\uFB71': '\u06A6',
+ '\uFB72': '\u0684',
+ '\uFB73': '\u0684',
+ '\uFB74': '\u0684',
+ '\uFB75': '\u0684',
+ '\uFB76': '\u0683',
+ '\uFB77': '\u0683',
+ '\uFB78': '\u0683',
+ '\uFB79': '\u0683',
+ '\uFB7A': '\u0686',
+ '\uFB7B': '\u0686',
+ '\uFB7C': '\u0686',
+ '\uFB7D': '\u0686',
+ '\uFB7E': '\u0687',
+ '\uFB7F': '\u0687',
+ '\uFB80': '\u0687',
+ '\uFB81': '\u0687',
+ '\uFB82': '\u068D',
+ '\uFB83': '\u068D',
+ '\uFB84': '\u068C',
+ '\uFB85': '\u068C',
+ '\uFB86': '\u068E',
+ '\uFB87': '\u068E',
+ '\uFB88': '\u0688',
+ '\uFB89': '\u0688',
+ '\uFB8A': '\u0698',
+ '\uFB8B': '\u0698',
+ '\uFB8C': '\u0691',
+ '\uFB8D': '\u0691',
+ '\uFB8E': '\u06A9',
+ '\uFB8F': '\u06A9',
+ '\uFB90': '\u06A9',
+ '\uFB91': '\u06A9',
+ '\uFB92': '\u06AF',
+ '\uFB93': '\u06AF',
+ '\uFB94': '\u06AF',
+ '\uFB95': '\u06AF',
+ '\uFB96': '\u06B3',
+ '\uFB97': '\u06B3',
+ '\uFB98': '\u06B3',
+ '\uFB99': '\u06B3',
+ '\uFB9A': '\u06B1',
+ '\uFB9B': '\u06B1',
+ '\uFB9C': '\u06B1',
+ '\uFB9D': '\u06B1',
+ '\uFB9E': '\u06BA',
+ '\uFB9F': '\u06BA',
+ '\uFBA0': '\u06BB',
+ '\uFBA1': '\u06BB',
+ '\uFBA2': '\u06BB',
+ '\uFBA3': '\u06BB',
+ '\uFBA4': '\u06C0',
+ '\uFBA5': '\u06C0',
+ '\uFBA6': '\u06C1',
+ '\uFBA7': '\u06C1',
+ '\uFBA8': '\u06C1',
+ '\uFBA9': '\u06C1',
+ '\uFBAA': '\u06BE',
+ '\uFBAB': '\u06BE',
+ '\uFBAC': '\u06BE',
+ '\uFBAD': '\u06BE',
+ '\uFBAE': '\u06D2',
+ '\uFBAF': '\u06D2',
+ '\uFBB0': '\u06D3',
+ '\uFBB1': '\u06D3',
+ '\uFBD3': '\u06AD',
+ '\uFBD4': '\u06AD',
+ '\uFBD5': '\u06AD',
+ '\uFBD6': '\u06AD',
+ '\uFBD7': '\u06C7',
+ '\uFBD8': '\u06C7',
+ '\uFBD9': '\u06C6',
+ '\uFBDA': '\u06C6',
+ '\uFBDB': '\u06C8',
+ '\uFBDC': '\u06C8',
+ '\uFBDD': '\u0677',
+ '\uFBDE': '\u06CB',
+ '\uFBDF': '\u06CB',
+ '\uFBE0': '\u06C5',
+ '\uFBE1': '\u06C5',
+ '\uFBE2': '\u06C9',
+ '\uFBE3': '\u06C9',
+ '\uFBE4': '\u06D0',
+ '\uFBE5': '\u06D0',
+ '\uFBE6': '\u06D0',
+ '\uFBE7': '\u06D0',
+ '\uFBE8': '\u0649',
+ '\uFBE9': '\u0649',
+ '\uFBEA': '\u0626\u0627',
+ '\uFBEB': '\u0626\u0627',
+ '\uFBEC': '\u0626\u06D5',
+ '\uFBED': '\u0626\u06D5',
+ '\uFBEE': '\u0626\u0648',
+ '\uFBEF': '\u0626\u0648',
+ '\uFBF0': '\u0626\u06C7',
+ '\uFBF1': '\u0626\u06C7',
+ '\uFBF2': '\u0626\u06C6',
+ '\uFBF3': '\u0626\u06C6',
+ '\uFBF4': '\u0626\u06C8',
+ '\uFBF5': '\u0626\u06C8',
+ '\uFBF6': '\u0626\u06D0',
+ '\uFBF7': '\u0626\u06D0',
+ '\uFBF8': '\u0626\u06D0',
+ '\uFBF9': '\u0626\u0649',
+ '\uFBFA': '\u0626\u0649',
+ '\uFBFB': '\u0626\u0649',
+ '\uFBFC': '\u06CC',
+ '\uFBFD': '\u06CC',
+ '\uFBFE': '\u06CC',
+ '\uFBFF': '\u06CC',
+ '\uFC00': '\u0626\u062C',
+ '\uFC01': '\u0626\u062D',
+ '\uFC02': '\u0626\u0645',
+ '\uFC03': '\u0626\u0649',
+ '\uFC04': '\u0626\u064A',
+ '\uFC05': '\u0628\u062C',
+ '\uFC06': '\u0628\u062D',
+ '\uFC07': '\u0628\u062E',
+ '\uFC08': '\u0628\u0645',
+ '\uFC09': '\u0628\u0649',
+ '\uFC0A': '\u0628\u064A',
+ '\uFC0B': '\u062A\u062C',
+ '\uFC0C': '\u062A\u062D',
+ '\uFC0D': '\u062A\u062E',
+ '\uFC0E': '\u062A\u0645',
+ '\uFC0F': '\u062A\u0649',
+ '\uFC10': '\u062A\u064A',
+ '\uFC11': '\u062B\u062C',
+ '\uFC12': '\u062B\u0645',
+ '\uFC13': '\u062B\u0649',
+ '\uFC14': '\u062B\u064A',
+ '\uFC15': '\u062C\u062D',
+ '\uFC16': '\u062C\u0645',
+ '\uFC17': '\u062D\u062C',
+ '\uFC18': '\u062D\u0645',
+ '\uFC19': '\u062E\u062C',
+ '\uFC1A': '\u062E\u062D',
+ '\uFC1B': '\u062E\u0645',
+ '\uFC1C': '\u0633\u062C',
+ '\uFC1D': '\u0633\u062D',
+ '\uFC1E': '\u0633\u062E',
+ '\uFC1F': '\u0633\u0645',
+ '\uFC20': '\u0635\u062D',
+ '\uFC21': '\u0635\u0645',
+ '\uFC22': '\u0636\u062C',
+ '\uFC23': '\u0636\u062D',
+ '\uFC24': '\u0636\u062E',
+ '\uFC25': '\u0636\u0645',
+ '\uFC26': '\u0637\u062D',
+ '\uFC27': '\u0637\u0645',
+ '\uFC28': '\u0638\u0645',
+ '\uFC29': '\u0639\u062C',
+ '\uFC2A': '\u0639\u0645',
+ '\uFC2B': '\u063A\u062C',
+ '\uFC2C': '\u063A\u0645',
+ '\uFC2D': '\u0641\u062C',
+ '\uFC2E': '\u0641\u062D',
+ '\uFC2F': '\u0641\u062E',
+ '\uFC30': '\u0641\u0645',
+ '\uFC31': '\u0641\u0649',
+ '\uFC32': '\u0641\u064A',
+ '\uFC33': '\u0642\u062D',
+ '\uFC34': '\u0642\u0645',
+ '\uFC35': '\u0642\u0649',
+ '\uFC36': '\u0642\u064A',
+ '\uFC37': '\u0643\u0627',
+ '\uFC38': '\u0643\u062C',
+ '\uFC39': '\u0643\u062D',
+ '\uFC3A': '\u0643\u062E',
+ '\uFC3B': '\u0643\u0644',
+ '\uFC3C': '\u0643\u0645',
+ '\uFC3D': '\u0643\u0649',
+ '\uFC3E': '\u0643\u064A',
+ '\uFC3F': '\u0644\u062C',
+ '\uFC40': '\u0644\u062D',
+ '\uFC41': '\u0644\u062E',
+ '\uFC42': '\u0644\u0645',
+ '\uFC43': '\u0644\u0649',
+ '\uFC44': '\u0644\u064A',
+ '\uFC45': '\u0645\u062C',
+ '\uFC46': '\u0645\u062D',
+ '\uFC47': '\u0645\u062E',
+ '\uFC48': '\u0645\u0645',
+ '\uFC49': '\u0645\u0649',
+ '\uFC4A': '\u0645\u064A',
+ '\uFC4B': '\u0646\u062C',
+ '\uFC4C': '\u0646\u062D',
+ '\uFC4D': '\u0646\u062E',
+ '\uFC4E': '\u0646\u0645',
+ '\uFC4F': '\u0646\u0649',
+ '\uFC50': '\u0646\u064A',
+ '\uFC51': '\u0647\u062C',
+ '\uFC52': '\u0647\u0645',
+ '\uFC53': '\u0647\u0649',
+ '\uFC54': '\u0647\u064A',
+ '\uFC55': '\u064A\u062C',
+ '\uFC56': '\u064A\u062D',
+ '\uFC57': '\u064A\u062E',
+ '\uFC58': '\u064A\u0645',
+ '\uFC59': '\u064A\u0649',
+ '\uFC5A': '\u064A\u064A',
+ '\uFC5B': '\u0630\u0670',
+ '\uFC5C': '\u0631\u0670',
+ '\uFC5D': '\u0649\u0670',
+ '\uFC5E': '\u0020\u064C\u0651',
+ '\uFC5F': '\u0020\u064D\u0651',
+ '\uFC60': '\u0020\u064E\u0651',
+ '\uFC61': '\u0020\u064F\u0651',
+ '\uFC62': '\u0020\u0650\u0651',
+ '\uFC63': '\u0020\u0651\u0670',
+ '\uFC64': '\u0626\u0631',
+ '\uFC65': '\u0626\u0632',
+ '\uFC66': '\u0626\u0645',
+ '\uFC67': '\u0626\u0646',
+ '\uFC68': '\u0626\u0649',
+ '\uFC69': '\u0626\u064A',
+ '\uFC6A': '\u0628\u0631',
+ '\uFC6B': '\u0628\u0632',
+ '\uFC6C': '\u0628\u0645',
+ '\uFC6D': '\u0628\u0646',
+ '\uFC6E': '\u0628\u0649',
+ '\uFC6F': '\u0628\u064A',
+ '\uFC70': '\u062A\u0631',
+ '\uFC71': '\u062A\u0632',
+ '\uFC72': '\u062A\u0645',
+ '\uFC73': '\u062A\u0646',
+ '\uFC74': '\u062A\u0649',
+ '\uFC75': '\u062A\u064A',
+ '\uFC76': '\u062B\u0631',
+ '\uFC77': '\u062B\u0632',
+ '\uFC78': '\u062B\u0645',
+ '\uFC79': '\u062B\u0646',
+ '\uFC7A': '\u062B\u0649',
+ '\uFC7B': '\u062B\u064A',
+ '\uFC7C': '\u0641\u0649',
+ '\uFC7D': '\u0641\u064A',
+ '\uFC7E': '\u0642\u0649',
+ '\uFC7F': '\u0642\u064A',
+ '\uFC80': '\u0643\u0627',
+ '\uFC81': '\u0643\u0644',
+ '\uFC82': '\u0643\u0645',
+ '\uFC83': '\u0643\u0649',
+ '\uFC84': '\u0643\u064A',
+ '\uFC85': '\u0644\u0645',
+ '\uFC86': '\u0644\u0649',
+ '\uFC87': '\u0644\u064A',
+ '\uFC88': '\u0645\u0627',
+ '\uFC89': '\u0645\u0645',
+ '\uFC8A': '\u0646\u0631',
+ '\uFC8B': '\u0646\u0632',
+ '\uFC8C': '\u0646\u0645',
+ '\uFC8D': '\u0646\u0646',
+ '\uFC8E': '\u0646\u0649',
+ '\uFC8F': '\u0646\u064A',
+ '\uFC90': '\u0649\u0670',
+ '\uFC91': '\u064A\u0631',
+ '\uFC92': '\u064A\u0632',
+ '\uFC93': '\u064A\u0645',
+ '\uFC94': '\u064A\u0646',
+ '\uFC95': '\u064A\u0649',
+ '\uFC96': '\u064A\u064A',
+ '\uFC97': '\u0626\u062C',
+ '\uFC98': '\u0626\u062D',
+ '\uFC99': '\u0626\u062E',
+ '\uFC9A': '\u0626\u0645',
+ '\uFC9B': '\u0626\u0647',
+ '\uFC9C': '\u0628\u062C',
+ '\uFC9D': '\u0628\u062D',
+ '\uFC9E': '\u0628\u062E',
+ '\uFC9F': '\u0628\u0645',
+ '\uFCA0': '\u0628\u0647',
+ '\uFCA1': '\u062A\u062C',
+ '\uFCA2': '\u062A\u062D',
+ '\uFCA3': '\u062A\u062E',
+ '\uFCA4': '\u062A\u0645',
+ '\uFCA5': '\u062A\u0647',
+ '\uFCA6': '\u062B\u0645',
+ '\uFCA7': '\u062C\u062D',
+ '\uFCA8': '\u062C\u0645',
+ '\uFCA9': '\u062D\u062C',
+ '\uFCAA': '\u062D\u0645',
+ '\uFCAB': '\u062E\u062C',
+ '\uFCAC': '\u062E\u0645',
+ '\uFCAD': '\u0633\u062C',
+ '\uFCAE': '\u0633\u062D',
+ '\uFCAF': '\u0633\u062E',
+ '\uFCB0': '\u0633\u0645',
+ '\uFCB1': '\u0635\u062D',
+ '\uFCB2': '\u0635\u062E',
+ '\uFCB3': '\u0635\u0645',
+ '\uFCB4': '\u0636\u062C',
+ '\uFCB5': '\u0636\u062D',
+ '\uFCB6': '\u0636\u062E',
+ '\uFCB7': '\u0636\u0645',
+ '\uFCB8': '\u0637\u062D',
+ '\uFCB9': '\u0638\u0645',
+ '\uFCBA': '\u0639\u062C',
+ '\uFCBB': '\u0639\u0645',
+ '\uFCBC': '\u063A\u062C',
+ '\uFCBD': '\u063A\u0645',
+ '\uFCBE': '\u0641\u062C',
+ '\uFCBF': '\u0641\u062D',
+ '\uFCC0': '\u0641\u062E',
+ '\uFCC1': '\u0641\u0645',
+ '\uFCC2': '\u0642\u062D',
+ '\uFCC3': '\u0642\u0645',
+ '\uFCC4': '\u0643\u062C',
+ '\uFCC5': '\u0643\u062D',
+ '\uFCC6': '\u0643\u062E',
+ '\uFCC7': '\u0643\u0644',
+ '\uFCC8': '\u0643\u0645',
+ '\uFCC9': '\u0644\u062C',
+ '\uFCCA': '\u0644\u062D',
+ '\uFCCB': '\u0644\u062E',
+ '\uFCCC': '\u0644\u0645',
+ '\uFCCD': '\u0644\u0647',
+ '\uFCCE': '\u0645\u062C',
+ '\uFCCF': '\u0645\u062D',
+ '\uFCD0': '\u0645\u062E',
+ '\uFCD1': '\u0645\u0645',
+ '\uFCD2': '\u0646\u062C',
+ '\uFCD3': '\u0646\u062D',
+ '\uFCD4': '\u0646\u062E',
+ '\uFCD5': '\u0646\u0645',
+ '\uFCD6': '\u0646\u0647',
+ '\uFCD7': '\u0647\u062C',
+ '\uFCD8': '\u0647\u0645',
+ '\uFCD9': '\u0647\u0670',
+ '\uFCDA': '\u064A\u062C',
+ '\uFCDB': '\u064A\u062D',
+ '\uFCDC': '\u064A\u062E',
+ '\uFCDD': '\u064A\u0645',
+ '\uFCDE': '\u064A\u0647',
+ '\uFCDF': '\u0626\u0645',
+ '\uFCE0': '\u0626\u0647',
+ '\uFCE1': '\u0628\u0645',
+ '\uFCE2': '\u0628\u0647',
+ '\uFCE3': '\u062A\u0645',
+ '\uFCE4': '\u062A\u0647',
+ '\uFCE5': '\u062B\u0645',
+ '\uFCE6': '\u062B\u0647',
+ '\uFCE7': '\u0633\u0645',
+ '\uFCE8': '\u0633\u0647',
+ '\uFCE9': '\u0634\u0645',
+ '\uFCEA': '\u0634\u0647',
+ '\uFCEB': '\u0643\u0644',
+ '\uFCEC': '\u0643\u0645',
+ '\uFCED': '\u0644\u0645',
+ '\uFCEE': '\u0646\u0645',
+ '\uFCEF': '\u0646\u0647',
+ '\uFCF0': '\u064A\u0645',
+ '\uFCF1': '\u064A\u0647',
+ '\uFCF2': '\u0640\u064E\u0651',
+ '\uFCF3': '\u0640\u064F\u0651',
+ '\uFCF4': '\u0640\u0650\u0651',
+ '\uFCF5': '\u0637\u0649',
+ '\uFCF6': '\u0637\u064A',
+ '\uFCF7': '\u0639\u0649',
+ '\uFCF8': '\u0639\u064A',
+ '\uFCF9': '\u063A\u0649',
+ '\uFCFA': '\u063A\u064A',
+ '\uFCFB': '\u0633\u0649',
+ '\uFCFC': '\u0633\u064A',
+ '\uFCFD': '\u0634\u0649',
+ '\uFCFE': '\u0634\u064A',
+ '\uFCFF': '\u062D\u0649',
+ '\uFD00': '\u062D\u064A',
+ '\uFD01': '\u062C\u0649',
+ '\uFD02': '\u062C\u064A',
+ '\uFD03': '\u062E\u0649',
+ '\uFD04': '\u062E\u064A',
+ '\uFD05': '\u0635\u0649',
+ '\uFD06': '\u0635\u064A',
+ '\uFD07': '\u0636\u0649',
+ '\uFD08': '\u0636\u064A',
+ '\uFD09': '\u0634\u062C',
+ '\uFD0A': '\u0634\u062D',
+ '\uFD0B': '\u0634\u062E',
+ '\uFD0C': '\u0634\u0645',
+ '\uFD0D': '\u0634\u0631',
+ '\uFD0E': '\u0633\u0631',
+ '\uFD0F': '\u0635\u0631',
+ '\uFD10': '\u0636\u0631',
+ '\uFD11': '\u0637\u0649',
+ '\uFD12': '\u0637\u064A',
+ '\uFD13': '\u0639\u0649',
+ '\uFD14': '\u0639\u064A',
+ '\uFD15': '\u063A\u0649',
+ '\uFD16': '\u063A\u064A',
+ '\uFD17': '\u0633\u0649',
+ '\uFD18': '\u0633\u064A',
+ '\uFD19': '\u0634\u0649',
+ '\uFD1A': '\u0634\u064A',
+ '\uFD1B': '\u062D\u0649',
+ '\uFD1C': '\u062D\u064A',
+ '\uFD1D': '\u062C\u0649',
+ '\uFD1E': '\u062C\u064A',
+ '\uFD1F': '\u062E\u0649',
+ '\uFD20': '\u062E\u064A',
+ '\uFD21': '\u0635\u0649',
+ '\uFD22': '\u0635\u064A',
+ '\uFD23': '\u0636\u0649',
+ '\uFD24': '\u0636\u064A',
+ '\uFD25': '\u0634\u062C',
+ '\uFD26': '\u0634\u062D',
+ '\uFD27': '\u0634\u062E',
+ '\uFD28': '\u0634\u0645',
+ '\uFD29': '\u0634\u0631',
+ '\uFD2A': '\u0633\u0631',
+ '\uFD2B': '\u0635\u0631',
+ '\uFD2C': '\u0636\u0631',
+ '\uFD2D': '\u0634\u062C',
+ '\uFD2E': '\u0634\u062D',
+ '\uFD2F': '\u0634\u062E',
+ '\uFD30': '\u0634\u0645',
+ '\uFD31': '\u0633\u0647',
+ '\uFD32': '\u0634\u0647',
+ '\uFD33': '\u0637\u0645',
+ '\uFD34': '\u0633\u062C',
+ '\uFD35': '\u0633\u062D',
+ '\uFD36': '\u0633\u062E',
+ '\uFD37': '\u0634\u062C',
+ '\uFD38': '\u0634\u062D',
+ '\uFD39': '\u0634\u062E',
+ '\uFD3A': '\u0637\u0645',
+ '\uFD3B': '\u0638\u0645',
+ '\uFD3C': '\u0627\u064B',
+ '\uFD3D': '\u0627\u064B',
+ '\uFD50': '\u062A\u062C\u0645',
+ '\uFD51': '\u062A\u062D\u062C',
+ '\uFD52': '\u062A\u062D\u062C',
+ '\uFD53': '\u062A\u062D\u0645',
+ '\uFD54': '\u062A\u062E\u0645',
+ '\uFD55': '\u062A\u0645\u062C',
+ '\uFD56': '\u062A\u0645\u062D',
+ '\uFD57': '\u062A\u0645\u062E',
+ '\uFD58': '\u062C\u0645\u062D',
+ '\uFD59': '\u062C\u0645\u062D',
+ '\uFD5A': '\u062D\u0645\u064A',
+ '\uFD5B': '\u062D\u0645\u0649',
+ '\uFD5C': '\u0633\u062D\u062C',
+ '\uFD5D': '\u0633\u062C\u062D',
+ '\uFD5E': '\u0633\u062C\u0649',
+ '\uFD5F': '\u0633\u0645\u062D',
+ '\uFD60': '\u0633\u0645\u062D',
+ '\uFD61': '\u0633\u0645\u062C',
+ '\uFD62': '\u0633\u0645\u0645',
+ '\uFD63': '\u0633\u0645\u0645',
+ '\uFD64': '\u0635\u062D\u062D',
+ '\uFD65': '\u0635\u062D\u062D',
+ '\uFD66': '\u0635\u0645\u0645',
+ '\uFD67': '\u0634\u062D\u0645',
+ '\uFD68': '\u0634\u062D\u0645',
+ '\uFD69': '\u0634\u062C\u064A',
+ '\uFD6A': '\u0634\u0645\u062E',
+ '\uFD6B': '\u0634\u0645\u062E',
+ '\uFD6C': '\u0634\u0645\u0645',
+ '\uFD6D': '\u0634\u0645\u0645',
+ '\uFD6E': '\u0636\u062D\u0649',
+ '\uFD6F': '\u0636\u062E\u0645',
+ '\uFD70': '\u0636\u062E\u0645',
+ '\uFD71': '\u0637\u0645\u062D',
+ '\uFD72': '\u0637\u0645\u062D',
+ '\uFD73': '\u0637\u0645\u0645',
+ '\uFD74': '\u0637\u0645\u064A',
+ '\uFD75': '\u0639\u062C\u0645',
+ '\uFD76': '\u0639\u0645\u0645',
+ '\uFD77': '\u0639\u0645\u0645',
+ '\uFD78': '\u0639\u0645\u0649',
+ '\uFD79': '\u063A\u0645\u0645',
+ '\uFD7A': '\u063A\u0645\u064A',
+ '\uFD7B': '\u063A\u0645\u0649',
+ '\uFD7C': '\u0641\u062E\u0645',
+ '\uFD7D': '\u0641\u062E\u0645',
+ '\uFD7E': '\u0642\u0645\u062D',
+ '\uFD7F': '\u0642\u0645\u0645',
+ '\uFD80': '\u0644\u062D\u0645',
+ '\uFD81': '\u0644\u062D\u064A',
+ '\uFD82': '\u0644\u062D\u0649',
+ '\uFD83': '\u0644\u062C\u062C',
+ '\uFD84': '\u0644\u062C\u062C',
+ '\uFD85': '\u0644\u062E\u0645',
+ '\uFD86': '\u0644\u062E\u0645',
+ '\uFD87': '\u0644\u0645\u062D',
+ '\uFD88': '\u0644\u0645\u062D',
+ '\uFD89': '\u0645\u062D\u062C',
+ '\uFD8A': '\u0645\u062D\u0645',
+ '\uFD8B': '\u0645\u062D\u064A',
+ '\uFD8C': '\u0645\u062C\u062D',
+ '\uFD8D': '\u0645\u062C\u0645',
+ '\uFD8E': '\u0645\u062E\u062C',
+ '\uFD8F': '\u0645\u062E\u0645',
+ '\uFD92': '\u0645\u062C\u062E',
+ '\uFD93': '\u0647\u0645\u062C',
+ '\uFD94': '\u0647\u0645\u0645',
+ '\uFD95': '\u0646\u062D\u0645',
+ '\uFD96': '\u0646\u062D\u0649',
+ '\uFD97': '\u0646\u062C\u0645',
+ '\uFD98': '\u0646\u062C\u0645',
+ '\uFD99': '\u0646\u062C\u0649',
+ '\uFD9A': '\u0646\u0645\u064A',
+ '\uFD9B': '\u0646\u0645\u0649',
+ '\uFD9C': '\u064A\u0645\u0645',
+ '\uFD9D': '\u064A\u0645\u0645',
+ '\uFD9E': '\u0628\u062E\u064A',
+ '\uFD9F': '\u062A\u062C\u064A',
+ '\uFDA0': '\u062A\u062C\u0649',
+ '\uFDA1': '\u062A\u062E\u064A',
+ '\uFDA2': '\u062A\u062E\u0649',
+ '\uFDA3': '\u062A\u0645\u064A',
+ '\uFDA4': '\u062A\u0645\u0649',
+ '\uFDA5': '\u062C\u0645\u064A',
+ '\uFDA6': '\u062C\u062D\u0649',
+ '\uFDA7': '\u062C\u0645\u0649',
+ '\uFDA8': '\u0633\u062E\u0649',
+ '\uFDA9': '\u0635\u062D\u064A',
+ '\uFDAA': '\u0634\u062D\u064A',
+ '\uFDAB': '\u0636\u062D\u064A',
+ '\uFDAC': '\u0644\u062C\u064A',
+ '\uFDAD': '\u0644\u0645\u064A',
+ '\uFDAE': '\u064A\u062D\u064A',
+ '\uFDAF': '\u064A\u062C\u064A',
+ '\uFDB0': '\u064A\u0645\u064A',
+ '\uFDB1': '\u0645\u0645\u064A',
+ '\uFDB2': '\u0642\u0645\u064A',
+ '\uFDB3': '\u0646\u062D\u064A',
+ '\uFDB4': '\u0642\u0645\u062D',
+ '\uFDB5': '\u0644\u062D\u0645',
+ '\uFDB6': '\u0639\u0645\u064A',
+ '\uFDB7': '\u0643\u0645\u064A',
+ '\uFDB8': '\u0646\u062C\u062D',
+ '\uFDB9': '\u0645\u062E\u064A',
+ '\uFDBA': '\u0644\u062C\u0645',
+ '\uFDBB': '\u0643\u0645\u0645',
+ '\uFDBC': '\u0644\u062C\u0645',
+ '\uFDBD': '\u0646\u062C\u062D',
+ '\uFDBE': '\u062C\u062D\u064A',
+ '\uFDBF': '\u062D\u062C\u064A',
+ '\uFDC0': '\u0645\u062C\u064A',
+ '\uFDC1': '\u0641\u0645\u064A',
+ '\uFDC2': '\u0628\u062D\u064A',
+ '\uFDC3': '\u0643\u0645\u0645',
+ '\uFDC4': '\u0639\u062C\u0645',
+ '\uFDC5': '\u0635\u0645\u0645',
+ '\uFDC6': '\u0633\u062E\u064A',
+ '\uFDC7': '\u0646\u062C\u064A',
+ '\uFE49': '\u203E',
+ '\uFE4A': '\u203E',
+ '\uFE4B': '\u203E',
+ '\uFE4C': '\u203E',
+ '\uFE4D': '\u005F',
+ '\uFE4E': '\u005F',
+ '\uFE4F': '\u005F',
+ '\uFE80': '\u0621',
+ '\uFE81': '\u0622',
+ '\uFE82': '\u0622',
+ '\uFE83': '\u0623',
+ '\uFE84': '\u0623',
+ '\uFE85': '\u0624',
+ '\uFE86': '\u0624',
+ '\uFE87': '\u0625',
+ '\uFE88': '\u0625',
+ '\uFE89': '\u0626',
+ '\uFE8A': '\u0626',
+ '\uFE8B': '\u0626',
+ '\uFE8C': '\u0626',
+ '\uFE8D': '\u0627',
+ '\uFE8E': '\u0627',
+ '\uFE8F': '\u0628',
+ '\uFE90': '\u0628',
+ '\uFE91': '\u0628',
+ '\uFE92': '\u0628',
+ '\uFE93': '\u0629',
+ '\uFE94': '\u0629',
+ '\uFE95': '\u062A',
+ '\uFE96': '\u062A',
+ '\uFE97': '\u062A',
+ '\uFE98': '\u062A',
+ '\uFE99': '\u062B',
+ '\uFE9A': '\u062B',
+ '\uFE9B': '\u062B',
+ '\uFE9C': '\u062B',
+ '\uFE9D': '\u062C',
+ '\uFE9E': '\u062C',
+ '\uFE9F': '\u062C',
+ '\uFEA0': '\u062C',
+ '\uFEA1': '\u062D',
+ '\uFEA2': '\u062D',
+ '\uFEA3': '\u062D',
+ '\uFEA4': '\u062D',
+ '\uFEA5': '\u062E',
+ '\uFEA6': '\u062E',
+ '\uFEA7': '\u062E',
+ '\uFEA8': '\u062E',
+ '\uFEA9': '\u062F',
+ '\uFEAA': '\u062F',
+ '\uFEAB': '\u0630',
+ '\uFEAC': '\u0630',
+ '\uFEAD': '\u0631',
+ '\uFEAE': '\u0631',
+ '\uFEAF': '\u0632',
+ '\uFEB0': '\u0632',
+ '\uFEB1': '\u0633',
+ '\uFEB2': '\u0633',
+ '\uFEB3': '\u0633',
+ '\uFEB4': '\u0633',
+ '\uFEB5': '\u0634',
+ '\uFEB6': '\u0634',
+ '\uFEB7': '\u0634',
+ '\uFEB8': '\u0634',
+ '\uFEB9': '\u0635',
+ '\uFEBA': '\u0635',
+ '\uFEBB': '\u0635',
+ '\uFEBC': '\u0635',
+ '\uFEBD': '\u0636',
+ '\uFEBE': '\u0636',
+ '\uFEBF': '\u0636',
+ '\uFEC0': '\u0636',
+ '\uFEC1': '\u0637',
+ '\uFEC2': '\u0637',
+ '\uFEC3': '\u0637',
+ '\uFEC4': '\u0637',
+ '\uFEC5': '\u0638',
+ '\uFEC6': '\u0638',
+ '\uFEC7': '\u0638',
+ '\uFEC8': '\u0638',
+ '\uFEC9': '\u0639',
+ '\uFECA': '\u0639',
+ '\uFECB': '\u0639',
+ '\uFECC': '\u0639',
+ '\uFECD': '\u063A',
+ '\uFECE': '\u063A',
+ '\uFECF': '\u063A',
+ '\uFED0': '\u063A',
+ '\uFED1': '\u0641',
+ '\uFED2': '\u0641',
+ '\uFED3': '\u0641',
+ '\uFED4': '\u0641',
+ '\uFED5': '\u0642',
+ '\uFED6': '\u0642',
+ '\uFED7': '\u0642',
+ '\uFED8': '\u0642',
+ '\uFED9': '\u0643',
+ '\uFEDA': '\u0643',
+ '\uFEDB': '\u0643',
+ '\uFEDC': '\u0643',
+ '\uFEDD': '\u0644',
+ '\uFEDE': '\u0644',
+ '\uFEDF': '\u0644',
+ '\uFEE0': '\u0644',
+ '\uFEE1': '\u0645',
+ '\uFEE2': '\u0645',
+ '\uFEE3': '\u0645',
+ '\uFEE4': '\u0645',
+ '\uFEE5': '\u0646',
+ '\uFEE6': '\u0646',
+ '\uFEE7': '\u0646',
+ '\uFEE8': '\u0646',
+ '\uFEE9': '\u0647',
+ '\uFEEA': '\u0647',
+ '\uFEEB': '\u0647',
+ '\uFEEC': '\u0647',
+ '\uFEED': '\u0648',
+ '\uFEEE': '\u0648',
+ '\uFEEF': '\u0649',
+ '\uFEF0': '\u0649',
+ '\uFEF1': '\u064A',
+ '\uFEF2': '\u064A',
+ '\uFEF3': '\u064A',
+ '\uFEF4': '\u064A',
+ '\uFEF5': '\u0644\u0622',
+ '\uFEF6': '\u0644\u0622',
+ '\uFEF7': '\u0644\u0623',
+ '\uFEF8': '\u0644\u0623',
+ '\uFEF9': '\u0644\u0625',
+ '\uFEFA': '\u0644\u0625',
+ '\uFEFB': '\u0644\u0627',
+ '\uFEFC': '\u0644\u0627'
+};
+
+function reverseIfRtl(chars) {
+ var charsLength = chars.length;
+ //reverse an arabic ligature
+ if (charsLength <= 1 || !isRTLRangeFor(chars.charCodeAt(0))) {
+ return chars;
+ }
+ var s = '';
+ for (var ii = charsLength - 1; ii >= 0; ii--) {
+ s += chars[ii];
+ }
+ return s;
+}
+
+function adjustWidths(properties) {
+ if (properties.fontMatrix[0] === FONT_IDENTITY_MATRIX[0]) {
+ return;
+ }
+ // adjusting width to fontMatrix scale
+ var scale = 0.001 / properties.fontMatrix[0];
+ var glyphsWidths = properties.widths;
+ for (var glyph in glyphsWidths) {
+ glyphsWidths[glyph] *= scale;
+ }
+ properties.defaultWidth *= scale;
+}
+
+function getFontType(type, subtype) {
+ switch (type) {
+ case 'Type1':
+ return subtype === 'Type1C' ? FontType.TYPE1C : FontType.TYPE1;
+ case 'CIDFontType0':
+ return subtype === 'CIDFontType0C' ? FontType.CIDFONTTYPE0C :
+ FontType.CIDFONTTYPE0;
+ case 'OpenType':
+ return FontType.OPENTYPE;
+ case 'TrueType':
+ return FontType.TRUETYPE;
+ case 'CIDFontType2':
+ return FontType.CIDFONTTYPE2;
+ case 'MMType1':
+ return FontType.MMTYPE1;
+ case 'Type0':
+ return FontType.TYPE0;
+ default:
+ return FontType.UNKNOWN;
+ }
+}
+
+var Glyph = (function GlyphClosure() {
+ function Glyph(fontChar, unicode, accent, width, vmetric, operatorListId) {
+ this.fontChar = fontChar;
+ this.unicode = unicode;
+ this.accent = accent;
+ this.width = width;
+ this.vmetric = vmetric;
+ this.operatorListId = operatorListId;
+ }
+
+ Glyph.prototype.matchesForCache =
+ function(fontChar, unicode, accent, width, vmetric, operatorListId) {
+ return this.fontChar === fontChar &&
+ this.unicode === unicode &&
+ this.accent === accent &&
+ this.width === width &&
+ this.vmetric === vmetric &&
+ this.operatorListId === operatorListId;
+ };
+
+ return Glyph;
+})();
+
+var ToUnicodeMap = (function ToUnicodeMapClosure() {
+ function ToUnicodeMap(cmap) {
+ // The elements of this._map can be integers or strings, depending on how
+ // |cmap| was created.
+ this._map = cmap;
+ }
+
+ ToUnicodeMap.prototype = {
+ get length() {
+ return this._map.length;
+ },
+
+ forEach: function(callback) {
+ for (var charCode in this._map) {
+ callback(charCode, this._map[charCode].charCodeAt(0));
+ }
+ },
+
+ has: function(i) {
+ return this._map[i] !== undefined;
+ },
+
+ get: function(i) {
+ return this._map[i];
+ },
+
+ charCodeOf: function(v) {
+ return this._map.indexOf(v);
+ }
+ };
+
+ return ToUnicodeMap;
+})();
+
+var IdentityToUnicodeMap = (function IdentityToUnicodeMapClosure() {
+ function IdentityToUnicodeMap(firstChar, lastChar) {
+ this.firstChar = firstChar;
+ this.lastChar = lastChar;
+ }
+
+ IdentityToUnicodeMap.prototype = {
+ get length() {
+ return (this.lastChar + 1) - this.firstChar;
+ },
+
+ forEach: function (callback) {
+ for (var i = this.firstChar, ii = this.lastChar; i <= ii; i++) {
+ callback(i, i);
+ }
+ },
+
+ has: function (i) {
+ return this.firstChar <= i && i <= this.lastChar;
+ },
+
+ get: function (i) {
+ if (this.firstChar <= i && i <= this.lastChar) {
+ return String.fromCharCode(i);
+ }
+ return undefined;
+ },
+
+ charCodeOf: function (v) {
+ error('should not call .charCodeOf');
+ }
+ };
+
+ return IdentityToUnicodeMap;
+})();
+
+var OpenTypeFileBuilder = (function OpenTypeFileBuilderClosure() {
+ function writeInt16(dest, offset, num) {
+ dest[offset] = (num >> 8) & 0xFF;
+ dest[offset + 1] = num & 0xFF;
+ }
+
+ function writeInt32(dest, offset, num) {
+ dest[offset] = (num >> 24) & 0xFF;
+ dest[offset + 1] = (num >> 16) & 0xFF;
+ dest[offset + 2] = (num >> 8) & 0xFF;
+ dest[offset + 3] = num & 0xFF;
+ }
+
+ function writeData(dest, offset, data) {
+ var i, ii;
+ if (data instanceof Uint8Array) {
+ dest.set(data, offset);
+ } else if (typeof data === 'string') {
+ for (i = 0, ii = data.length; i < ii; i++) {
+ dest[offset++] = data.charCodeAt(i) & 0xFF;
+ }
+ } else {
+ // treating everything else as array
+ for (i = 0, ii = data.length; i < ii; i++) {
+ dest[offset++] = data[i] & 0xFF;
+ }
+ }
+ }
+
+ function OpenTypeFileBuilder(sfnt) {
+ this.sfnt = sfnt;
+ this.tables = Object.create(null);
+ }
+
+ OpenTypeFileBuilder.getSearchParams =
+ function OpenTypeFileBuilder_getSearchParams(entriesCount, entrySize) {
+ var maxPower2 = 1, log2 = 0;
+ while ((maxPower2 ^ entriesCount) > maxPower2) {
+ maxPower2 <<= 1;
+ log2++;
+ }
+ var searchRange = maxPower2 * entrySize;
+ return {
+ range: searchRange,
+ entry: log2,
+ rangeShift: entrySize * entriesCount - searchRange
+ };
+ };
+
+ var OTF_HEADER_SIZE = 12;
+ var OTF_TABLE_ENTRY_SIZE = 16;
+
+ OpenTypeFileBuilder.prototype = {
+ toArray: function OpenTypeFileBuilder_toArray() {
+ var sfnt = this.sfnt;
+
+ // Tables needs to be written by ascendant alphabetic order
+ var tables = this.tables;
+ var tablesNames = Object.keys(tables);
+ tablesNames.sort();
+ var numTables = tablesNames.length;
+
+ var i, j, jj, table, tableName;
+ // layout the tables data
+ var offset = OTF_HEADER_SIZE + numTables * OTF_TABLE_ENTRY_SIZE;
+ var tableOffsets = [offset];
+ for (i = 0; i < numTables; i++) {
+ table = tables[tablesNames[i]];
+ var paddedLength = ((table.length + 3) & ~3) >>> 0;
+ offset += paddedLength;
+ tableOffsets.push(offset);
+ }
+
+ var file = new Uint8Array(offset);
+ // write the table data first (mostly for checksum)
+ for (i = 0; i < numTables; i++) {
+ table = tables[tablesNames[i]];
+ writeData(file, tableOffsets[i], table);
+ }
+
+ // sfnt version (4 bytes)
+ if (sfnt === 'true') {
+ // Windows hates the Mac TrueType sfnt version number
+ sfnt = string32(0x00010000);
+ }
+ file[0] = sfnt.charCodeAt(0) & 0xFF;
+ file[1] = sfnt.charCodeAt(1) & 0xFF;
+ file[2] = sfnt.charCodeAt(2) & 0xFF;
+ file[3] = sfnt.charCodeAt(3) & 0xFF;
+
+ // numTables (2 bytes)
+ writeInt16(file, 4, numTables);
+
+ var searchParams = OpenTypeFileBuilder.getSearchParams(numTables, 16);
+
+ // searchRange (2 bytes)
+ writeInt16(file, 6, searchParams.range);
+ // entrySelector (2 bytes)
+ writeInt16(file, 8, searchParams.entry);
+ // rangeShift (2 bytes)
+ writeInt16(file, 10, searchParams.rangeShift);
+
+ offset = OTF_HEADER_SIZE;
+ // writing table entries
+ for (i = 0; i < numTables; i++) {
+ tableName = tablesNames[i];
+ file[offset] = tableName.charCodeAt(0) & 0xFF;
+ file[offset + 1] = tableName.charCodeAt(1) & 0xFF;
+ file[offset + 2] = tableName.charCodeAt(2) & 0xFF;
+ file[offset + 3] = tableName.charCodeAt(3) & 0xFF;
+
+ // checksum
+ var checksum = 0;
+ for (j = tableOffsets[i], jj = tableOffsets[i + 1]; j < jj; j += 4) {
+ var quad = (file[j] << 24) + (file[j + 1] << 16) +
+ (file[j + 2] << 8) + file[j + 3];
+ checksum = (checksum + quad) | 0;
+ }
+ writeInt32(file, offset + 4, checksum);
+
+ // offset
+ writeInt32(file, offset + 8, tableOffsets[i]);
+ // length
+ writeInt32(file, offset + 12, tables[tableName].length);
+
+ offset += OTF_TABLE_ENTRY_SIZE;
+ }
+ return file;
+ },
+
+ addTable: function OpenTypeFileBuilder_addTable(tag, data) {
+ if (tag in this.tables) {
+ throw new Error('Table ' + tag + ' already exists');
+ }
+ this.tables[tag] = data;
+ }
+ };
+
+ return OpenTypeFileBuilder;
+})();
+
+/**
+ * 'Font' is the class the outside world should use, it encapsulate all the font
+ * decoding logics whatever type it is (assuming the font type is supported).
+ *
+ * For example to read a Type1 font and to attach it to the document:
+ * var type1Font = new Font("MyFontName", binaryFile, propertiesObject);
+ * type1Font.bind();
+ */
+var Font = (function FontClosure() {
+ function Font(name, file, properties) {
+ var charCode, glyphName, fontChar;
+
+ this.name = name;
+ this.loadedName = properties.loadedName;
+ this.isType3Font = properties.isType3Font;
+ this.sizes = [];
+
+ this.glyphCache = {};
+
+ var names = name.split('+');
+ names = names.length > 1 ? names[1] : names[0];
+ names = names.split(/[-,_]/g)[0];
+ this.isSerifFont = !!(properties.flags & FontFlags.Serif);
+ this.isSymbolicFont = !!(properties.flags & FontFlags.Symbolic);
+ this.isMonospace = !!(properties.flags & FontFlags.FixedPitch);
+
+ var type = properties.type;
+ var subtype = properties.subtype;
+ this.type = type;
+
+ this.fallbackName = (this.isMonospace ? 'monospace' :
+ (this.isSerifFont ? 'serif' : 'sans-serif'));
+
+ this.differences = properties.differences;
+ this.widths = properties.widths;
+ this.defaultWidth = properties.defaultWidth;
+ this.composite = properties.composite;
+ this.wideChars = properties.wideChars;
+ this.cMap = properties.cMap;
+ this.ascent = properties.ascent / PDF_GLYPH_SPACE_UNITS;
+ this.descent = properties.descent / PDF_GLYPH_SPACE_UNITS;
+ this.fontMatrix = properties.fontMatrix;
+
+ this.toUnicode = properties.toUnicode = this.buildToUnicode(properties);
+
+ this.toFontChar = [];
+
+ if (properties.type === 'Type3') {
+ for (charCode = 0; charCode < 256; charCode++) {
+ this.toFontChar[charCode] = (this.differences[charCode] ||
+ properties.defaultEncoding[charCode]);
+ }
+ this.fontType = FontType.TYPE3;
+ return;
+ }
+
+ this.cidEncoding = properties.cidEncoding;
+ this.vertical = properties.vertical;
+ if (this.vertical) {
+ this.vmetrics = properties.vmetrics;
+ this.defaultVMetrics = properties.defaultVMetrics;
+ }
+
+ if (!file || file.isEmpty) {
+ if (file) {
+ // Some bad PDF generators will include empty font files,
+ // attempting to recover by assuming that no file exists.
+ warn('Font file is empty in "' + name + '" (' + this.loadedName + ')');
+ }
+
+ this.missingFile = true;
+ // The file data is not specified. Trying to fix the font name
+ // to be used with the canvas.font.
+ var fontName = name.replace(/[,_]/g, '-');
+ var isStandardFont = !!stdFontMap[fontName] ||
+ !!(nonStdFontMap[fontName] && stdFontMap[nonStdFontMap[fontName]]);
+ fontName = stdFontMap[fontName] || nonStdFontMap[fontName] || fontName;
+
+ this.bold = (fontName.search(/bold/gi) !== -1);
+ this.italic = ((fontName.search(/oblique/gi) !== -1) ||
+ (fontName.search(/italic/gi) !== -1));
+
+ // Use 'name' instead of 'fontName' here because the original
+ // name ArialBlack for example will be replaced by Helvetica.
+ this.black = (name.search(/Black/g) !== -1);
+
+ // if at least one width is present, remeasure all chars when exists
+ this.remeasure = Object.keys(this.widths).length > 0;
+ if (isStandardFont && type === 'CIDFontType2' &&
+ properties.cidEncoding.indexOf('Identity-') === 0) {
+ // Standard fonts might be embedded as CID font without glyph mapping.
+ // Building one based on GlyphMapForStandardFonts.
+ var map = [];
+ for (var code in GlyphMapForStandardFonts) {
+ map[+code] = GlyphMapForStandardFonts[code];
+ }
+ var isIdentityUnicode = this.toUnicode instanceof IdentityToUnicodeMap;
+ if (!isIdentityUnicode) {
+ this.toUnicode.forEach(function(charCode, unicodeCharCode) {
+ map[+charCode] = unicodeCharCode;
+ });
+ }
+ this.toFontChar = map;
+ this.toUnicode = new ToUnicodeMap(map);
+ } else if (/Symbol/i.test(fontName)) {
+ var symbols = Encodings.SymbolSetEncoding;
+ for (charCode in symbols) {
+ fontChar = GlyphsUnicode[symbols[charCode]];
+ if (!fontChar) {
+ continue;
+ }
+ this.toFontChar[charCode] = fontChar;
+ }
+ for (charCode in properties.differences) {
+ fontChar = GlyphsUnicode[properties.differences[charCode]];
+ if (!fontChar) {
+ continue;
+ }
+ this.toFontChar[charCode] = fontChar;
+ }
+ } else if (/Dingbats/i.test(fontName)) {
+ if (/Wingdings/i.test(name)) {
+ warn('Wingdings font without embedded font file, ' +
+ 'falling back to the ZapfDingbats encoding.');
+ }
+ var dingbats = Encodings.ZapfDingbatsEncoding;
+ for (charCode in dingbats) {
+ fontChar = DingbatsGlyphsUnicode[dingbats[charCode]];
+ if (!fontChar) {
+ continue;
+ }
+ this.toFontChar[charCode] = fontChar;
+ }
+ for (charCode in properties.differences) {
+ fontChar = DingbatsGlyphsUnicode[properties.differences[charCode]];
+ if (!fontChar) {
+ continue;
+ }
+ this.toFontChar[charCode] = fontChar;
+ }
+ } else if (isStandardFont) {
+ this.toFontChar = [];
+ for (charCode in properties.defaultEncoding) {
+ glyphName = (properties.differences[charCode] ||
+ properties.defaultEncoding[charCode]);
+ this.toFontChar[charCode] = GlyphsUnicode[glyphName];
+ }
+ } else {
+ var unicodeCharCode, notCidFont = (type.indexOf('CIDFontType') === -1);
+ this.toUnicode.forEach(function(charCode, unicodeCharCode) {
+ if (notCidFont) {
+ glyphName = (properties.differences[charCode] ||
+ properties.defaultEncoding[charCode]);
+ unicodeCharCode = (GlyphsUnicode[glyphName] || unicodeCharCode);
+ }
+ this.toFontChar[charCode] = unicodeCharCode;
+ }.bind(this));
+ }
+ this.loadedName = fontName.split('-')[0];
+ this.loading = false;
+ this.fontType = getFontType(type, subtype);
+ return;
+ }
+
+ // Some fonts might use wrong font types for Type1C or CIDFontType0C
+ if (subtype === 'Type1C' && (type !== 'Type1' && type !== 'MMType1')) {
+ // Some TrueType fonts by mistake claim Type1C
+ if (isTrueTypeFile(file)) {
+ subtype = 'TrueType';
+ } else {
+ type = 'Type1';
+ }
+ }
+ if (subtype === 'CIDFontType0C' && type !== 'CIDFontType0') {
+ type = 'CIDFontType0';
+ }
+ if (subtype === 'OpenType') {
+ type = 'OpenType';
+ }
+ // Some CIDFontType0C fonts by mistake claim CIDFontType0.
+ if (type === 'CIDFontType0') {
+ subtype = isType1File(file) ? 'CIDFontType0' : 'CIDFontType0C';
+ }
+
+ var data;
+ switch (type) {
+ case 'MMType1':
+ info('MMType1 font (' + name + '), falling back to Type1.');
+ /* falls through */
+ case 'Type1':
+ case 'CIDFontType0':
+ this.mimetype = 'font/opentype';
+
+ var cff = (subtype === 'Type1C' || subtype === 'CIDFontType0C') ?
+ new CFFFont(file, properties) : new Type1Font(name, file, properties);
+
+ adjustWidths(properties);
+
+ // Wrap the CFF data inside an OTF font file
+ data = this.convert(name, cff, properties);
+ break;
+
+ case 'OpenType':
+ case 'TrueType':
+ case 'CIDFontType2':
+ this.mimetype = 'font/opentype';
+
+ // Repair the TrueType file. It is can be damaged in the point of
+ // view of the sanitizer
+ data = this.checkAndRepair(name, file, properties);
+ if (this.isOpenType) {
+ type = 'OpenType';
+ }
+ break;
+
+ default:
+ error('Font ' + type + ' is not supported');
+ break;
+ }
+
+ this.data = data;
+ this.fontType = getFontType(type, subtype);
+
+ // Transfer some properties again that could change during font conversion
+ this.fontMatrix = properties.fontMatrix;
+ this.widths = properties.widths;
+ this.defaultWidth = properties.defaultWidth;
+ this.encoding = properties.baseEncoding;
+ this.seacMap = properties.seacMap;
+
+ this.loading = true;
+ }
+
+ Font.getFontID = (function () {
+ var ID = 1;
+ return function Font_getFontID() {
+ return String(ID++);
+ };
+ })();
+
+ function int16(b0, b1) {
+ return (b0 << 8) + b1;
+ }
+
+ function int32(b0, b1, b2, b3) {
+ return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3;
+ }
+
+ function string16(value) {
+ return String.fromCharCode((value >> 8) & 0xff, value & 0xff);
+ }
+
+ function safeString16(value) {
+ // clamp value to the 16-bit int range
+ value = (value > 0x7FFF ? 0x7FFF : (value < -0x8000 ? -0x8000 : value));
+ return String.fromCharCode((value >> 8) & 0xff, value & 0xff);
+ }
+
+ function isTrueTypeFile(file) {
+ var header = file.peekBytes(4);
+ return readUint32(header, 0) === 0x00010000;
+ }
+
+ function isType1File(file) {
+ var header = file.peekBytes(2);
+ // All Type1 font programs must begin with the comment '%!' (0x25 + 0x21).
+ if (header[0] === 0x25 && header[1] === 0x21) {
+ return true;
+ }
+ // ... obviously some fonts violate that part of the specification,
+ // please refer to the comment in |Type1Font| below.
+ if (header[0] === 0x80 && header[1] === 0x01) { // pfb file header.
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * Helper function for |adjustMapping|.
+ * @return {boolean}
+ */
+ function isProblematicUnicodeLocation(code) {
+ if (code <= 0x1F) { // Control chars
+ return true;
+ }
+ if (code >= 0x80 && code <= 0x9F) { // Control chars
+ return true;
+ }
+ if ((code >= 0x2000 && code <= 0x200F) || // General punctuation chars
+ (code >= 0x2028 && code <= 0x202F) ||
+ (code >= 0x2060 && code <= 0x206F)) {
+ return true;
+ }
+ if (code >= 0xFFF0 && code <= 0xFFFF) { // Specials Unicode block
+ return true;
+ }
+ switch (code) {
+ case 0x7F: // Control char
+ case 0xA0: // Non breaking space
+ case 0xAD: // Soft hyphen
+ case 0x0E33: // Thai character SARA AM
+ case 0x2011: // Non breaking hyphen
+ case 0x205F: // Medium mathematical space
+ case 0x25CC: // Dotted circle (combining mark)
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * Rebuilds the char code to glyph ID map by trying to replace the char codes
+ * with their unicode value. It also moves char codes that are in known
+ * problematic locations.
+ * @return {Object} Two properties:
+ * 'toFontChar' - maps original char codes(the value that will be read
+ * from commands such as show text) to the char codes that will be used in the
+ * font that we build
+ * 'charCodeToGlyphId' - maps the new font char codes to glyph ids
+ */
+ function adjustMapping(charCodeToGlyphId, properties) {
+ var toUnicode = properties.toUnicode;
+ var isSymbolic = !!(properties.flags & FontFlags.Symbolic);
+ var isIdentityUnicode =
+ properties.toUnicode instanceof IdentityToUnicodeMap;
+ var newMap = Object.create(null);
+ var toFontChar = [];
+ var usedFontCharCodes = [];
+ var nextAvailableFontCharCode = PRIVATE_USE_OFFSET_START;
+ for (var originalCharCode in charCodeToGlyphId) {
+ originalCharCode |= 0;
+ var glyphId = charCodeToGlyphId[originalCharCode];
+ var fontCharCode = originalCharCode;
+ // First try to map the value to a unicode position if a non identity map
+ // was created.
+ if (!isIdentityUnicode && toUnicode.has(originalCharCode)) {
+ var unicode = toUnicode.get(fontCharCode);
+ // TODO: Try to map ligatures to the correct spot.
+ if (unicode.length === 1) {
+ fontCharCode = unicode.charCodeAt(0);
+ }
+ }
+ // Try to move control characters, special characters and already mapped
+ // characters to the private use area since they will not be drawn by
+ // canvas if left in their current position. Also, move characters if the
+ // font was symbolic and there is only an identity unicode map since the
+ // characters probably aren't in the correct position (fixes an issue
+ // with firefox and thuluthfont).
+ if ((usedFontCharCodes[fontCharCode] !== undefined ||
+ isProblematicUnicodeLocation(fontCharCode) ||
+ (isSymbolic && isIdentityUnicode)) &&
+ nextAvailableFontCharCode <= PRIVATE_USE_OFFSET_END) { // Room left.
+ // Loop to try and find a free spot in the private use area.
+ do {
+ fontCharCode = nextAvailableFontCharCode++;
+
+ if (SKIP_PRIVATE_USE_RANGE_F000_TO_F01F && fontCharCode === 0xF000) {
+ fontCharCode = 0xF020;
+ nextAvailableFontCharCode = fontCharCode + 1;
+ }
+
+ } while (usedFontCharCodes[fontCharCode] !== undefined &&
+ nextAvailableFontCharCode <= PRIVATE_USE_OFFSET_END);
+ }
+
+ newMap[fontCharCode] = glyphId;
+ toFontChar[originalCharCode] = fontCharCode;
+ usedFontCharCodes[fontCharCode] = true;
+ }
+ return {
+ toFontChar: toFontChar,
+ charCodeToGlyphId: newMap,
+ nextAvailableFontCharCode: nextAvailableFontCharCode
+ };
+ }
+
+ function getRanges(glyphs) {
+ // Array.sort() sorts by characters, not numerically, so convert to an
+ // array of characters.
+ var codes = [];
+ for (var charCode in glyphs) {
+ codes.push({ fontCharCode: charCode | 0, glyphId: glyphs[charCode] });
+ }
+ codes.sort(function fontGetRangesSort(a, b) {
+ return a.fontCharCode - b.fontCharCode;
+ });
+
+ // Split the sorted codes into ranges.
+ var ranges = [];
+ var length = codes.length;
+ for (var n = 0; n < length; ) {
+ var start = codes[n].fontCharCode;
+ var codeIndices = [codes[n].glyphId];
+ ++n;
+ var end = start;
+ while (n < length && end + 1 === codes[n].fontCharCode) {
+ codeIndices.push(codes[n].glyphId);
+ ++end;
+ ++n;
+ if (end === 0xFFFF) {
+ break;
+ }
+ }
+ ranges.push([start, end, codeIndices]);
+ }
+
+ return ranges;
+ }
+
+ function createCmapTable(glyphs) {
+ var ranges = getRanges(glyphs);
+ var numTables = ranges[ranges.length - 1][1] > 0xFFFF ? 2 : 1;
+ var cmap = '\x00\x00' + // version
+ string16(numTables) + // numTables
+ '\x00\x03' + // platformID
+ '\x00\x01' + // encodingID
+ string32(4 + numTables * 8); // start of the table record
+
+ var i, ii, j, jj;
+ for (i = ranges.length - 1; i >= 0; --i) {
+ if (ranges[i][0] <= 0xFFFF) { break; }
+ }
+ var bmpLength = i + 1;
+
+ if (ranges[i][0] < 0xFFFF && ranges[i][1] === 0xFFFF) {
+ ranges[i][1] = 0xFFFE;
+ }
+ var trailingRangesCount = ranges[i][1] < 0xFFFF ? 1 : 0;
+ var segCount = bmpLength + trailingRangesCount;
+ var searchParams = OpenTypeFileBuilder.getSearchParams(segCount, 2);
+
+ // Fill up the 4 parallel arrays describing the segments.
+ var startCount = '';
+ var endCount = '';
+ var idDeltas = '';
+ var idRangeOffsets = '';
+ var glyphsIds = '';
+ var bias = 0;
+
+ var range, start, end, codes;
+ for (i = 0, ii = bmpLength; i < ii; i++) {
+ range = ranges[i];
+ start = range[0];
+ end = range[1];
+ startCount += string16(start);
+ endCount += string16(end);
+ codes = range[2];
+ var contiguous = true;
+ for (j = 1, jj = codes.length; j < jj; ++j) {
+ if (codes[j] !== codes[j - 1] + 1) {
+ contiguous = false;
+ break;
+ }
+ }
+ if (!contiguous) {
+ var offset = (segCount - i) * 2 + bias * 2;
+ bias += (end - start + 1);
+
+ idDeltas += string16(0);
+ idRangeOffsets += string16(offset);
+
+ for (j = 0, jj = codes.length; j < jj; ++j) {
+ glyphsIds += string16(codes[j]);
+ }
+ } else {
+ var startCode = codes[0];
+
+ idDeltas += string16((startCode - start) & 0xFFFF);
+ idRangeOffsets += string16(0);
+ }
+ }
+
+ if (trailingRangesCount > 0) {
+ endCount += '\xFF\xFF';
+ startCount += '\xFF\xFF';
+ idDeltas += '\x00\x01';
+ idRangeOffsets += '\x00\x00';
+ }
+
+ var format314 = '\x00\x00' + // language
+ string16(2 * segCount) +
+ string16(searchParams.range) +
+ string16(searchParams.entry) +
+ string16(searchParams.rangeShift) +
+ endCount + '\x00\x00' + startCount +
+ idDeltas + idRangeOffsets + glyphsIds;
+
+ var format31012 = '';
+ var header31012 = '';
+ if (numTables > 1) {
+ cmap += '\x00\x03' + // platformID
+ '\x00\x0A' + // encodingID
+ string32(4 + numTables * 8 +
+ 4 + format314.length); // start of the table record
+ format31012 = '';
+ for (i = 0, ii = ranges.length; i < ii; i++) {
+ range = ranges[i];
+ start = range[0];
+ codes = range[2];
+ var code = codes[0];
+ for (j = 1, jj = codes.length; j < jj; ++j) {
+ if (codes[j] !== codes[j - 1] + 1) {
+ end = range[0] + j - 1;
+ format31012 += string32(start) + // startCharCode
+ string32(end) + // endCharCode
+ string32(code); // startGlyphID
+ start = end + 1;
+ code = codes[j];
+ }
+ }
+ format31012 += string32(start) + // startCharCode
+ string32(range[1]) + // endCharCode
+ string32(code); // startGlyphID
+ }
+ header31012 = '\x00\x0C' + // format
+ '\x00\x00' + // reserved
+ string32(format31012.length + 16) + // length
+ '\x00\x00\x00\x00' + // language
+ string32(format31012.length / 12); // nGroups
+ }
+
+ return cmap + '\x00\x04' + // format
+ string16(format314.length + 4) + // length
+ format314 + header31012 + format31012;
+ }
+
+ function validateOS2Table(os2) {
+ var stream = new Stream(os2.data);
+ var version = stream.getUint16();
+ // TODO verify all OS/2 tables fields, but currently we validate only those
+ // that give us issues
+ stream.getBytes(60); // skipping type, misc sizes, panose, unicode ranges
+ var selection = stream.getUint16();
+ if (version < 4 && (selection & 0x0300)) {
+ return false;
+ }
+ var firstChar = stream.getUint16();
+ var lastChar = stream.getUint16();
+ if (firstChar > lastChar) {
+ return false;
+ }
+ stream.getBytes(6); // skipping sTypoAscender/Descender/LineGap
+ var usWinAscent = stream.getUint16();
+ if (usWinAscent === 0) { // makes font unreadable by windows
+ return false;
+ }
+
+ // OS/2 appears to be valid, resetting some fields
+ os2.data[8] = os2.data[9] = 0; // IE rejects fonts if fsType != 0
+ return true;
+ }
+
+ function createOS2Table(properties, charstrings, override) {
+ override = override || {
+ unitsPerEm: 0,
+ yMax: 0,
+ yMin: 0,
+ ascent: 0,
+ descent: 0
+ };
+
+ var ulUnicodeRange1 = 0;
+ var ulUnicodeRange2 = 0;
+ var ulUnicodeRange3 = 0;
+ var ulUnicodeRange4 = 0;
+
+ var firstCharIndex = null;
+ var lastCharIndex = 0;
+
+ if (charstrings) {
+ for (var code in charstrings) {
+ code |= 0;
+ if (firstCharIndex > code || !firstCharIndex) {
+ firstCharIndex = code;
+ }
+ if (lastCharIndex < code) {
+ lastCharIndex = code;
+ }
+
+ var position = getUnicodeRangeFor(code);
+ if (position < 32) {
+ ulUnicodeRange1 |= 1 << position;
+ } else if (position < 64) {
+ ulUnicodeRange2 |= 1 << position - 32;
+ } else if (position < 96) {
+ ulUnicodeRange3 |= 1 << position - 64;
+ } else if (position < 123) {
+ ulUnicodeRange4 |= 1 << position - 96;
+ } else {
+ error('Unicode ranges Bits > 123 are reserved for internal usage');
+ }
+ }
+ } else {
+ // TODO
+ firstCharIndex = 0;
+ lastCharIndex = 255;
+ }
+
+ var bbox = properties.bbox || [0, 0, 0, 0];
+ var unitsPerEm = (override.unitsPerEm ||
+ 1 / (properties.fontMatrix || FONT_IDENTITY_MATRIX)[0]);
+
+ // if the font units differ to the PDF glyph space units
+ // then scale up the values
+ var scale = (properties.ascentScaled ? 1.0 :
+ unitsPerEm / PDF_GLYPH_SPACE_UNITS);
+
+ var typoAscent = (override.ascent ||
+ Math.round(scale * (properties.ascent || bbox[3])));
+ var typoDescent = (override.descent ||
+ Math.round(scale * (properties.descent || bbox[1])));
+ if (typoDescent > 0 && properties.descent > 0 && bbox[1] < 0) {
+ typoDescent = -typoDescent; // fixing incorrect descent
+ }
+ var winAscent = override.yMax || typoAscent;
+ var winDescent = -override.yMin || -typoDescent;
+
+ return '\x00\x03' + // version
+ '\x02\x24' + // xAvgCharWidth
+ '\x01\xF4' + // usWeightClass
+ '\x00\x05' + // usWidthClass
+ '\x00\x00' + // fstype (0 to let the font loads via font-face on IE)
+ '\x02\x8A' + // ySubscriptXSize
+ '\x02\xBB' + // ySubscriptYSize
+ '\x00\x00' + // ySubscriptXOffset
+ '\x00\x8C' + // ySubscriptYOffset
+ '\x02\x8A' + // ySuperScriptXSize
+ '\x02\xBB' + // ySuperScriptYSize
+ '\x00\x00' + // ySuperScriptXOffset
+ '\x01\xDF' + // ySuperScriptYOffset
+ '\x00\x31' + // yStrikeOutSize
+ '\x01\x02' + // yStrikeOutPosition
+ '\x00\x00' + // sFamilyClass
+ '\x00\x00\x06' +
+ String.fromCharCode(properties.fixedPitch ? 0x09 : 0x00) +
+ '\x00\x00\x00\x00\x00\x00' + // Panose
+ string32(ulUnicodeRange1) + // ulUnicodeRange1 (Bits 0-31)
+ string32(ulUnicodeRange2) + // ulUnicodeRange2 (Bits 32-63)
+ string32(ulUnicodeRange3) + // ulUnicodeRange3 (Bits 64-95)
+ string32(ulUnicodeRange4) + // ulUnicodeRange4 (Bits 96-127)
+ '\x2A\x32\x31\x2A' + // achVendID
+ string16(properties.italicAngle ? 1 : 0) + // fsSelection
+ string16(firstCharIndex ||
+ properties.firstChar) + // usFirstCharIndex
+ string16(lastCharIndex || properties.lastChar) + // usLastCharIndex
+ string16(typoAscent) + // sTypoAscender
+ string16(typoDescent) + // sTypoDescender
+ '\x00\x64' + // sTypoLineGap (7%-10% of the unitsPerEM value)
+ string16(winAscent) + // usWinAscent
+ string16(winDescent) + // usWinDescent
+ '\x00\x00\x00\x00' + // ulCodePageRange1 (Bits 0-31)
+ '\x00\x00\x00\x00' + // ulCodePageRange2 (Bits 32-63)
+ string16(properties.xHeight) + // sxHeight
+ string16(properties.capHeight) + // sCapHeight
+ string16(0) + // usDefaultChar
+ string16(firstCharIndex || properties.firstChar) + // usBreakChar
+ '\x00\x03'; // usMaxContext
+ }
+
+ function createPostTable(properties) {
+ var angle = Math.floor(properties.italicAngle * (Math.pow(2, 16)));
+ return ('\x00\x03\x00\x00' + // Version number
+ string32(angle) + // italicAngle
+ '\x00\x00' + // underlinePosition
+ '\x00\x00' + // underlineThickness
+ string32(properties.fixedPitch) + // isFixedPitch
+ '\x00\x00\x00\x00' + // minMemType42
+ '\x00\x00\x00\x00' + // maxMemType42
+ '\x00\x00\x00\x00' + // minMemType1
+ '\x00\x00\x00\x00'); // maxMemType1
+ }
+
+ function createNameTable(name, proto) {
+ if (!proto) {
+ proto = [[], []]; // no strings and unicode strings
+ }
+
+ var strings = [
+ proto[0][0] || 'Original licence', // 0.Copyright
+ proto[0][1] || name, // 1.Font family
+ proto[0][2] || 'Unknown', // 2.Font subfamily (font weight)
+ proto[0][3] || 'uniqueID', // 3.Unique ID
+ proto[0][4] || name, // 4.Full font name
+ proto[0][5] || 'Version 0.11', // 5.Version
+ proto[0][6] || '', // 6.Postscript name
+ proto[0][7] || 'Unknown', // 7.Trademark
+ proto[0][8] || 'Unknown', // 8.Manufacturer
+ proto[0][9] || 'Unknown' // 9.Designer
+ ];
+
+ // Mac want 1-byte per character strings while Windows want
+ // 2-bytes per character, so duplicate the names table
+ var stringsUnicode = [];
+ var i, ii, j, jj, str;
+ for (i = 0, ii = strings.length; i < ii; i++) {
+ str = proto[1][i] || strings[i];
+
+ var strBufUnicode = [];
+ for (j = 0, jj = str.length; j < jj; j++) {
+ strBufUnicode.push(string16(str.charCodeAt(j)));
+ }
+ stringsUnicode.push(strBufUnicode.join(''));
+ }
+
+ var names = [strings, stringsUnicode];
+ var platforms = ['\x00\x01', '\x00\x03'];
+ var encodings = ['\x00\x00', '\x00\x01'];
+ var languages = ['\x00\x00', '\x04\x09'];
+
+ var namesRecordCount = strings.length * platforms.length;
+ var nameTable =
+ '\x00\x00' + // format
+ string16(namesRecordCount) + // Number of names Record
+ string16(namesRecordCount * 12 + 6); // Storage
+
+ // Build the name records field
+ var strOffset = 0;
+ for (i = 0, ii = platforms.length; i < ii; i++) {
+ var strs = names[i];
+ for (j = 0, jj = strs.length; j < jj; j++) {
+ str = strs[j];
+ var nameRecord =
+ platforms[i] + // platform ID
+ encodings[i] + // encoding ID
+ languages[i] + // language ID
+ string16(j) + // name ID
+ string16(str.length) +
+ string16(strOffset);
+ nameTable += nameRecord;
+ strOffset += str.length;
+ }
+ }
+
+ nameTable += strings.join('') + stringsUnicode.join('');
+ return nameTable;
+ }
+
+ Font.prototype = {
+ name: null,
+ font: null,
+ mimetype: null,
+ encoding: null,
+ get renderer() {
+ var renderer = FontRendererFactory.create(this);
+ return shadow(this, 'renderer', renderer);
+ },
+
+ exportData: function Font_exportData() {
+ var data = {};
+ for (var i in this) {
+ if (this.hasOwnProperty(i)) {
+ data[i] = this[i];
+ }
+ }
+ return data;
+ },
+
+ checkAndRepair: function Font_checkAndRepair(name, font, properties) {
+ function readTableEntry(file) {
+ var tag = bytesToString(file.getBytes(4));
+
+ var checksum = file.getInt32();
+ var offset = file.getInt32() >>> 0;
+ var length = file.getInt32() >>> 0;
+
+ // Read the table associated data
+ var previousPosition = file.pos;
+ file.pos = file.start ? file.start : 0;
+ file.skip(offset);
+ var data = file.getBytes(length);
+ file.pos = previousPosition;
+
+ if (tag === 'head') {
+ // clearing checksum adjustment
+ data[8] = data[9] = data[10] = data[11] = 0;
+ data[17] |= 0x20; //Set font optimized for cleartype flag
+ }
+
+ return {
+ tag: tag,
+ checksum: checksum,
+ length: length,
+ offset: offset,
+ data: data
+ };
+ }
+
+ function readOpenTypeHeader(ttf) {
+ return {
+ version: bytesToString(ttf.getBytes(4)),
+ numTables: ttf.getUint16(),
+ searchRange: ttf.getUint16(),
+ entrySelector: ttf.getUint16(),
+ rangeShift: ttf.getUint16()
+ };
+ }
+
+ /**
+ * Read the appropriate subtable from the cmap according to 9.6.6.4 from
+ * PDF spec
+ */
+ function readCmapTable(cmap, font, isSymbolicFont) {
+ var segment;
+ var start = (font.start ? font.start : 0) + cmap.offset;
+ font.pos = start;
+
+ var version = font.getUint16();
+ var numTables = font.getUint16();
+
+ var potentialTable;
+ var canBreak = false;
+ // There's an order of preference in terms of which cmap subtable to
+ // use:
+ // - non-symbolic fonts the preference is a 3,1 table then a 1,0 table
+ // - symbolic fonts the preference is a 3,0 table then a 1,0 table
+ // The following takes advantage of the fact that the tables are sorted
+ // to work.
+ for (var i = 0; i < numTables; i++) {
+ var platformId = font.getUint16();
+ var encodingId = font.getUint16();
+ var offset = font.getInt32() >>> 0;
+ var useTable = false;
+
+ if (platformId === 0 && encodingId === 0) {
+ useTable = true;
+ // Continue the loop since there still may be a higher priority
+ // table.
+ } else if (platformId === 1 && encodingId === 0) {
+ useTable = true;
+ // Continue the loop since there still may be a higher priority
+ // table.
+ } else if (platformId === 3 && encodingId === 1 &&
+ (!isSymbolicFont || !potentialTable)) {
+ useTable = true;
+ if (!isSymbolicFont) {
+ canBreak = true;
+ }
+ } else if (isSymbolicFont && platformId === 3 && encodingId === 0) {
+ useTable = true;
+ canBreak = true;
+ }
+
+ if (useTable) {
+ potentialTable = {
+ platformId: platformId,
+ encodingId: encodingId,
+ offset: offset
+ };
+ }
+ if (canBreak) {
+ break;
+ }
+ }
+
+ if (!potentialTable) {
+ warn('Could not find a preferred cmap table.');
+ return {
+ platformId: -1,
+ encodingId: -1,
+ mappings: [],
+ hasShortCmap: false
+ };
+ }
+
+ font.pos = start + potentialTable.offset;
+ var format = font.getUint16();
+ var length = font.getUint16();
+ var language = font.getUint16();
+
+ var hasShortCmap = false;
+ var mappings = [];
+ var j, glyphId;
+
+ // TODO(mack): refactor this cmap subtable reading logic out
+ if (format === 0) {
+ for (j = 0; j < 256; j++) {
+ var index = font.getByte();
+ if (!index) {
+ continue;
+ }
+ mappings.push({
+ charCode: j,
+ glyphId: index
+ });
+ }
+ hasShortCmap = true;
+ } else if (format === 4) {
+ // re-creating the table in format 4 since the encoding
+ // might be changed
+ var segCount = (font.getUint16() >> 1);
+ font.getBytes(6); // skipping range fields
+ var segIndex, segments = [];
+ for (segIndex = 0; segIndex < segCount; segIndex++) {
+ segments.push({ end: font.getUint16() });
+ }
+ font.getUint16();
+ for (segIndex = 0; segIndex < segCount; segIndex++) {
+ segments[segIndex].start = font.getUint16();
+ }
+
+ for (segIndex = 0; segIndex < segCount; segIndex++) {
+ segments[segIndex].delta = font.getUint16();
+ }
+
+ var offsetsCount = 0;
+ for (segIndex = 0; segIndex < segCount; segIndex++) {
+ segment = segments[segIndex];
+ var rangeOffset = font.getUint16();
+ if (!rangeOffset) {
+ segment.offsetIndex = -1;
+ continue;
+ }
+
+ var offsetIndex = (rangeOffset >> 1) - (segCount - segIndex);
+ segment.offsetIndex = offsetIndex;
+ offsetsCount = Math.max(offsetsCount, offsetIndex +
+ segment.end - segment.start + 1);
+ }
+
+ var offsets = [];
+ for (j = 0; j < offsetsCount; j++) {
+ offsets.push(font.getUint16());
+ }
+
+ for (segIndex = 0; segIndex < segCount; segIndex++) {
+ segment = segments[segIndex];
+ start = segment.start;
+ var end = segment.end;
+ var delta = segment.delta;
+ offsetIndex = segment.offsetIndex;
+
+ for (j = start; j <= end; j++) {
+ if (j === 0xFFFF) {
+ continue;
+ }
+
+ glyphId = (offsetIndex < 0 ?
+ j : offsets[offsetIndex + j - start]);
+ glyphId = (glyphId + delta) & 0xFFFF;
+ if (glyphId === 0) {
+ continue;
+ }
+ mappings.push({
+ charCode: j,
+ glyphId: glyphId
+ });
+ }
+ }
+ } else if (format === 6) {
+ // Format 6 is a 2-bytes dense mapping, which means the font data
+ // lives glue together even if they are pretty far in the unicode
+ // table. (This looks weird, so I can have missed something), this
+ // works on Linux but seems to fails on Mac so let's rewrite the
+ // cmap table to a 3-1-4 style
+ var firstCode = font.getUint16();
+ var entryCount = font.getUint16();
+
+ for (j = 0; j < entryCount; j++) {
+ glyphId = font.getUint16();
+ var charCode = firstCode + j;
+
+ mappings.push({
+ charCode: charCode,
+ glyphId: glyphId
+ });
+ }
+ } else {
+ error('cmap table has unsupported format: ' + format);
+ }
+
+ // removing duplicate entries
+ mappings.sort(function (a, b) {
+ return a.charCode - b.charCode;
+ });
+ for (i = 1; i < mappings.length; i++) {
+ if (mappings[i - 1].charCode === mappings[i].charCode) {
+ mappings.splice(i, 1);
+ i--;
+ }
+ }
+
+ return {
+ platformId: potentialTable.platformId,
+ encodingId: potentialTable.encodingId,
+ mappings: mappings,
+ hasShortCmap: hasShortCmap
+ };
+ }
+
+ function sanitizeMetrics(font, header, metrics, numGlyphs) {
+ if (!header) {
+ if (metrics) {
+ metrics.data = null;
+ }
+ return;
+ }
+
+ font.pos = (font.start ? font.start : 0) + header.offset;
+ font.pos += header.length - 2;
+ var numOfMetrics = font.getUint16();
+
+ if (numOfMetrics > numGlyphs) {
+ info('The numOfMetrics (' + numOfMetrics + ') should not be ' +
+ 'greater than the numGlyphs (' + numGlyphs + ')');
+ // Reduce numOfMetrics if it is greater than numGlyphs
+ numOfMetrics = numGlyphs;
+ header.data[34] = (numOfMetrics & 0xff00) >> 8;
+ header.data[35] = numOfMetrics & 0x00ff;
+ }
+
+ var numOfSidebearings = numGlyphs - numOfMetrics;
+ var numMissing = numOfSidebearings -
+ ((metrics.length - numOfMetrics * 4) >> 1);
+
+ if (numMissing > 0) {
+ // For each missing glyph, we set both the width and lsb to 0 (zero).
+ // Since we need to add two properties for each glyph, this explains
+ // the use of |numMissing * 2| when initializing the typed array.
+ var entries = new Uint8Array(metrics.length + numMissing * 2);
+ entries.set(metrics.data);
+ metrics.data = entries;
+ }
+ }
+
+ function sanitizeGlyph(source, sourceStart, sourceEnd, dest, destStart,
+ hintsValid) {
+ if (sourceEnd - sourceStart <= 12) {
+ // glyph with data less than 12 is invalid one
+ return 0;
+ }
+ var glyf = source.subarray(sourceStart, sourceEnd);
+ var contoursCount = (glyf[0] << 8) | glyf[1];
+ if (contoursCount & 0x8000) {
+ // complex glyph, writing as is
+ dest.set(glyf, destStart);
+ return glyf.length;
+ }
+
+ var i, j = 10, flagsCount = 0;
+ for (i = 0; i < contoursCount; i++) {
+ var endPoint = (glyf[j] << 8) | glyf[j + 1];
+ flagsCount = endPoint + 1;
+ j += 2;
+ }
+ // skipping instructions
+ var instructionsStart = j;
+ var instructionsLength = (glyf[j] << 8) | glyf[j + 1];
+ j += 2 + instructionsLength;
+ var instructionsEnd = j;
+ // validating flags
+ var coordinatesLength = 0;
+ for (i = 0; i < flagsCount; i++) {
+ var flag = glyf[j++];
+ if (flag & 0xC0) {
+ // reserved flags must be zero, cleaning up
+ glyf[j - 1] = flag & 0x3F;
+ }
+ var xyLength = ((flag & 2) ? 1 : (flag & 16) ? 0 : 2) +
+ ((flag & 4) ? 1 : (flag & 32) ? 0 : 2);
+ coordinatesLength += xyLength;
+ if (flag & 8) {
+ var repeat = glyf[j++];
+ i += repeat;
+ coordinatesLength += repeat * xyLength;
+ }
+ }
+ // glyph without coordinates will be rejected
+ if (coordinatesLength === 0) {
+ return 0;
+ }
+ var glyphDataLength = j + coordinatesLength;
+ if (glyphDataLength > glyf.length) {
+ // not enough data for coordinates
+ return 0;
+ }
+ if (!hintsValid && instructionsLength > 0) {
+ dest.set(glyf.subarray(0, instructionsStart), destStart);
+ dest.set([0, 0], destStart + instructionsStart);
+ dest.set(glyf.subarray(instructionsEnd, glyphDataLength),
+ destStart + instructionsStart + 2);
+ glyphDataLength -= instructionsLength;
+ if (glyf.length - glyphDataLength > 3) {
+ glyphDataLength = (glyphDataLength + 3) & ~3;
+ }
+ return glyphDataLength;
+ }
+ if (glyf.length - glyphDataLength > 3) {
+ // truncating and aligning to 4 bytes the long glyph data
+ glyphDataLength = (glyphDataLength + 3) & ~3;
+ dest.set(glyf.subarray(0, glyphDataLength), destStart);
+ return glyphDataLength;
+ }
+ // glyph data is fine
+ dest.set(glyf, destStart);
+ return glyf.length;
+ }
+
+ function sanitizeHead(head, numGlyphs, locaLength) {
+ var data = head.data;
+
+ // Validate version:
+ // Should always be 0x00010000
+ var version = int32(data[0], data[1], data[2], data[3]);
+ if (version >> 16 !== 1) {
+ info('Attempting to fix invalid version in head table: ' + version);
+ data[0] = 0;
+ data[1] = 1;
+ data[2] = 0;
+ data[3] = 0;
+ }
+
+ var indexToLocFormat = int16(data[50], data[51]);
+ if (indexToLocFormat < 0 || indexToLocFormat > 1) {
+ info('Attempting to fix invalid indexToLocFormat in head table: ' +
+ indexToLocFormat);
+
+ // The value of indexToLocFormat should be 0 if the loca table
+ // consists of short offsets, and should be 1 if the loca table
+ // consists of long offsets.
+ //
+ // The number of entries in the loca table should be numGlyphs + 1.
+ //
+ // Using this information, we can work backwards to deduce if the
+ // size of each offset in the loca table, and thus figure out the
+ // appropriate value for indexToLocFormat.
+
+ var numGlyphsPlusOne = numGlyphs + 1;
+ if (locaLength === numGlyphsPlusOne << 1) {
+ // 0x0000 indicates the loca table consists of short offsets
+ data[50] = 0;
+ data[51] = 0;
+ } else if (locaLength === numGlyphsPlusOne << 2) {
+ // 0x0001 indicates the loca table consists of long offsets
+ data[50] = 0;
+ data[51] = 1;
+ } else {
+ warn('Could not fix indexToLocFormat: ' + indexToLocFormat);
+ }
+ }
+ }
+
+ function sanitizeGlyphLocations(loca, glyf, numGlyphs,
+ isGlyphLocationsLong, hintsValid,
+ dupFirstEntry) {
+ var itemSize, itemDecode, itemEncode;
+ if (isGlyphLocationsLong) {
+ itemSize = 4;
+ itemDecode = function fontItemDecodeLong(data, offset) {
+ return (data[offset] << 24) | (data[offset + 1] << 16) |
+ (data[offset + 2] << 8) | data[offset + 3];
+ };
+ itemEncode = function fontItemEncodeLong(data, offset, value) {
+ data[offset] = (value >>> 24) & 0xFF;
+ data[offset + 1] = (value >> 16) & 0xFF;
+ data[offset + 2] = (value >> 8) & 0xFF;
+ data[offset + 3] = value & 0xFF;
+ };
+ } else {
+ itemSize = 2;
+ itemDecode = function fontItemDecode(data, offset) {
+ return (data[offset] << 9) | (data[offset + 1] << 1);
+ };
+ itemEncode = function fontItemEncode(data, offset, value) {
+ data[offset] = (value >> 9) & 0xFF;
+ data[offset + 1] = (value >> 1) & 0xFF;
+ };
+ }
+ var locaData = loca.data;
+ var locaDataSize = itemSize * (1 + numGlyphs);
+ // is loca.data too short or long?
+ if (locaData.length !== locaDataSize) {
+ locaData = new Uint8Array(locaDataSize);
+ locaData.set(loca.data.subarray(0, locaDataSize));
+ loca.data = locaData;
+ }
+ // removing the invalid glyphs
+ var oldGlyfData = glyf.data;
+ var oldGlyfDataLength = oldGlyfData.length;
+ var newGlyfData = new Uint8Array(oldGlyfDataLength);
+ var startOffset = itemDecode(locaData, 0);
+ var writeOffset = 0;
+ var missingGlyphData = {};
+ itemEncode(locaData, 0, writeOffset);
+ var i, j;
+ for (i = 0, j = itemSize; i < numGlyphs; i++, j += itemSize) {
+ var endOffset = itemDecode(locaData, j);
+ if (endOffset > oldGlyfDataLength &&
+ ((oldGlyfDataLength + 3) & ~3) === endOffset) {
+ // Aspose breaks fonts by aligning the glyphs to the qword, but not
+ // the glyf table size, which makes last glyph out of range.
+ endOffset = oldGlyfDataLength;
+ }
+ if (endOffset > oldGlyfDataLength) {
+ // glyph end offset points outside glyf data, rejecting the glyph
+ itemEncode(locaData, j, writeOffset);
+ startOffset = endOffset;
+ continue;
+ }
+
+ if (startOffset === endOffset) {
+ missingGlyphData[i] = true;
+ }
+
+ var newLength = sanitizeGlyph(oldGlyfData, startOffset, endOffset,
+ newGlyfData, writeOffset, hintsValid);
+ writeOffset += newLength;
+ itemEncode(locaData, j, writeOffset);
+ startOffset = endOffset;
+ }
+
+ if (writeOffset === 0) {
+ // glyf table cannot be empty -- redoing the glyf and loca tables
+ // to have single glyph with one point
+ var simpleGlyph = new Uint8Array(
+ [0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 49, 0]);
+ for (i = 0, j = itemSize; i < numGlyphs; i++, j += itemSize) {
+ itemEncode(locaData, j, simpleGlyph.length);
+ }
+ glyf.data = simpleGlyph;
+ return missingGlyphData;
+ }
+
+ if (dupFirstEntry) {
+ var firstEntryLength = itemDecode(locaData, itemSize);
+ if (newGlyfData.length > firstEntryLength + writeOffset) {
+ glyf.data = newGlyfData.subarray(0, firstEntryLength + writeOffset);
+ } else {
+ glyf.data = new Uint8Array(firstEntryLength + writeOffset);
+ glyf.data.set(newGlyfData.subarray(0, writeOffset));
+ }
+ glyf.data.set(newGlyfData.subarray(0, firstEntryLength), writeOffset);
+ itemEncode(loca.data, locaData.length - itemSize,
+ writeOffset + firstEntryLength);
+ } else {
+ glyf.data = newGlyfData.subarray(0, writeOffset);
+ }
+ return missingGlyphData;
+ }
+
+ function readPostScriptTable(post, properties, maxpNumGlyphs) {
+ var start = (font.start ? font.start : 0) + post.offset;
+ font.pos = start;
+
+ var length = post.length, end = start + length;
+ var version = font.getInt32();
+ // skip rest to the tables
+ font.getBytes(28);
+
+ var glyphNames;
+ var valid = true;
+ var i;
+
+ switch (version) {
+ case 0x00010000:
+ glyphNames = MacStandardGlyphOrdering;
+ break;
+ case 0x00020000:
+ var numGlyphs = font.getUint16();
+ if (numGlyphs !== maxpNumGlyphs) {
+ valid = false;
+ break;
+ }
+ var glyphNameIndexes = [];
+ for (i = 0; i < numGlyphs; ++i) {
+ var index = font.getUint16();
+ if (index >= 32768) {
+ valid = false;
+ break;
+ }
+ glyphNameIndexes.push(index);
+ }
+ if (!valid) {
+ break;
+ }
+ var customNames = [];
+ var strBuf = [];
+ while (font.pos < end) {
+ var stringLength = font.getByte();
+ strBuf.length = stringLength;
+ for (i = 0; i < stringLength; ++i) {
+ strBuf[i] = String.fromCharCode(font.getByte());
+ }
+ customNames.push(strBuf.join(''));
+ }
+ glyphNames = [];
+ for (i = 0; i < numGlyphs; ++i) {
+ var j = glyphNameIndexes[i];
+ if (j < 258) {
+ glyphNames.push(MacStandardGlyphOrdering[j]);
+ continue;
+ }
+ glyphNames.push(customNames[j - 258]);
+ }
+ break;
+ case 0x00030000:
+ break;
+ default:
+ warn('Unknown/unsupported post table version ' + version);
+ valid = false;
+ break;
+ }
+ properties.glyphNames = glyphNames;
+ return valid;
+ }
+
+ function readNameTable(nameTable) {
+ var start = (font.start ? font.start : 0) + nameTable.offset;
+ font.pos = start;
+
+ var names = [[], []];
+ var length = nameTable.length, end = start + length;
+ var format = font.getUint16();
+ var FORMAT_0_HEADER_LENGTH = 6;
+ if (format !== 0 || length < FORMAT_0_HEADER_LENGTH) {
+ // unsupported name table format or table "too" small
+ return names;
+ }
+ var numRecords = font.getUint16();
+ var stringsStart = font.getUint16();
+ var records = [];
+ var NAME_RECORD_LENGTH = 12;
+ var i, ii;
+
+ for (i = 0; i < numRecords &&
+ font.pos + NAME_RECORD_LENGTH <= end; i++) {
+ var r = {
+ platform: font.getUint16(),
+ encoding: font.getUint16(),
+ language: font.getUint16(),
+ name: font.getUint16(),
+ length: font.getUint16(),
+ offset: font.getUint16()
+ };
+ // using only Macintosh and Windows platform/encoding names
+ if ((r.platform === 1 && r.encoding === 0 && r.language === 0) ||
+ (r.platform === 3 && r.encoding === 1 && r.language === 0x409)) {
+ records.push(r);
+ }
+ }
+ for (i = 0, ii = records.length; i < ii; i++) {
+ var record = records[i];
+ var pos = start + stringsStart + record.offset;
+ if (pos + record.length > end) {
+ continue; // outside of name table, ignoring
+ }
+ font.pos = pos;
+ var nameIndex = record.name;
+ if (record.encoding) {
+ // unicode
+ var str = '';
+ for (var j = 0, jj = record.length; j < jj; j += 2) {
+ str += String.fromCharCode(font.getUint16());
+ }
+ names[1][nameIndex] = str;
+ } else {
+ names[0][nameIndex] = bytesToString(font.getBytes(record.length));
+ }
+ }
+ return names;
+ }
+
+ var TTOpsStackDeltas = [
+ 0, 0, 0, 0, 0, 0, 0, 0, -2, -2, -2, -2, 0, 0, -2, -5,
+ -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, -1, 0, -1, -1, -1, -1,
+ 1, -1, -999, 0, 1, 0, -1, -2, 0, -1, -2, -1, -1, 0, -1, -1,
+ 0, 0, -999, -999, -1, -1, -1, -1, -2, -999, -2, -2, -999, 0, -2, -2,
+ 0, 0, -2, 0, -2, 0, 0, 0, -2, -1, -1, 1, 1, 0, 0, -1,
+ -1, -1, -1, -1, -1, -1, 0, 0, -1, 0, -1, -1, 0, -999, -1, -1,
+ -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ -2, -999, -999, -999, -999, -999, -1, -1, -2, -2, 0, 0, 0, 0, -1, -1,
+ -999, -2, -2, 0, 0, -1, -2, -2, 0, 0, 0, -1, -1, -1, -2];
+ // 0xC0-DF == -1 and 0xE0-FF == -2
+
+ function sanitizeTTProgram(table, ttContext) {
+ var data = table.data;
+ var i = 0, j, n, b, funcId, pc, lastEndf = 0, lastDeff = 0;
+ var stack = [];
+ var callstack = [];
+ var functionsCalled = [];
+ var tooComplexToFollowFunctions =
+ ttContext.tooComplexToFollowFunctions;
+ var inFDEF = false, ifLevel = 0, inELSE = 0;
+ for (var ii = data.length; i < ii;) {
+ var op = data[i++];
+ // The TrueType instruction set docs can be found at
+ // https://developer.apple.com/fonts/TTRefMan/RM05/Chap5.html
+ if (op === 0x40) { // NPUSHB - pushes n bytes
+ n = data[i++];
+ if (inFDEF || inELSE) {
+ i += n;
+ } else {
+ for (j = 0; j < n; j++) {
+ stack.push(data[i++]);
+ }
+ }
+ } else if (op === 0x41) { // NPUSHW - pushes n words
+ n = data[i++];
+ if (inFDEF || inELSE) {
+ i += n * 2;
+ } else {
+ for (j = 0; j < n; j++) {
+ b = data[i++];
+ stack.push((b << 8) | data[i++]);
+ }
+ }
+ } else if ((op & 0xF8) === 0xB0) { // PUSHB - pushes bytes
+ n = op - 0xB0 + 1;
+ if (inFDEF || inELSE) {
+ i += n;
+ } else {
+ for (j = 0; j < n; j++) {
+ stack.push(data[i++]);
+ }
+ }
+ } else if ((op & 0xF8) === 0xB8) { // PUSHW - pushes words
+ n = op - 0xB8 + 1;
+ if (inFDEF || inELSE) {
+ i += n * 2;
+ } else {
+ for (j = 0; j < n; j++) {
+ b = data[i++];
+ stack.push((b << 8) | data[i++]);
+ }
+ }
+ } else if (op === 0x2B && !tooComplexToFollowFunctions) { // CALL
+ if (!inFDEF && !inELSE) {
+ // collecting inforamtion about which functions are used
+ funcId = stack[stack.length - 1];
+ ttContext.functionsUsed[funcId] = true;
+ if (funcId in ttContext.functionsStackDeltas) {
+ stack.length += ttContext.functionsStackDeltas[funcId];
+ } else if (funcId in ttContext.functionsDefined &&
+ functionsCalled.indexOf(funcId) < 0) {
+ callstack.push({data: data, i: i, stackTop: stack.length - 1});
+ functionsCalled.push(funcId);
+ pc = ttContext.functionsDefined[funcId];
+ if (!pc) {
+ warn('TT: CALL non-existent function');
+ ttContext.hintsValid = false;
+ return;
+ }
+ data = pc.data;
+ i = pc.i;
+ }
+ }
+ } else if (op === 0x2C && !tooComplexToFollowFunctions) { // FDEF
+ if (inFDEF || inELSE) {
+ warn('TT: nested FDEFs not allowed');
+ tooComplexToFollowFunctions = true;
+ }
+ inFDEF = true;
+ // collecting inforamtion about which functions are defined
+ lastDeff = i;
+ funcId = stack.pop();
+ ttContext.functionsDefined[funcId] = {data: data, i: i};
+ } else if (op === 0x2D) { // ENDF - end of function
+ if (inFDEF) {
+ inFDEF = false;
+ lastEndf = i;
+ } else {
+ pc = callstack.pop();
+ if (!pc) {
+ warn('TT: ENDF bad stack');
+ ttContext.hintsValid = false;
+ return;
+ }
+ funcId = functionsCalled.pop();
+ data = pc.data;
+ i = pc.i;
+ ttContext.functionsStackDeltas[funcId] =
+ stack.length - pc.stackTop;
+ }
+ } else if (op === 0x89) { // IDEF - instruction definition
+ if (inFDEF || inELSE) {
+ warn('TT: nested IDEFs not allowed');
+ tooComplexToFollowFunctions = true;
+ }
+ inFDEF = true;
+ // recording it as a function to track ENDF
+ lastDeff = i;
+ } else if (op === 0x58) { // IF
+ ++ifLevel;
+ } else if (op === 0x1B) { // ELSE
+ inELSE = ifLevel;
+ } else if (op === 0x59) { // EIF
+ if (inELSE === ifLevel) {
+ inELSE = 0;
+ }
+ --ifLevel;
+ } else if (op === 0x1C) { // JMPR
+ if (!inFDEF && !inELSE) {
+ var offset = stack[stack.length - 1];
+ // only jumping forward to prevent infinite loop
+ if (offset > 0) {
+ i += offset - 1;
+ }
+ }
+ }
+ // Adjusting stack not extactly, but just enough to get function id
+ if (!inFDEF && !inELSE) {
+ var stackDelta = op <= 0x8E ? TTOpsStackDeltas[op] :
+ op >= 0xC0 && op <= 0xDF ? -1 : op >= 0xE0 ? -2 : 0;
+ if (op >= 0x71 && op <= 0x75) {
+ n = stack.pop();
+ if (n === n) {
+ stackDelta = -n * 2;
+ }
+ }
+ while (stackDelta < 0 && stack.length > 0) {
+ stack.pop();
+ stackDelta++;
+ }
+ while (stackDelta > 0) {
+ stack.push(NaN); // pushing any number into stack
+ stackDelta--;
+ }
+ }
+ }
+ ttContext.tooComplexToFollowFunctions = tooComplexToFollowFunctions;
+ var content = [data];
+ if (i > data.length) {
+ content.push(new Uint8Array(i - data.length));
+ }
+ if (lastDeff > lastEndf) {
+ warn('TT: complementing a missing function tail');
+ // new function definition started, but not finished
+ // complete function by [CLEAR, ENDF]
+ content.push(new Uint8Array([0x22, 0x2D]));
+ }
+ foldTTTable(table, content);
+ }
+
+ function checkInvalidFunctions(ttContext, maxFunctionDefs) {
+ if (ttContext.tooComplexToFollowFunctions) {
+ return;
+ }
+ if (ttContext.functionsDefined.length > maxFunctionDefs) {
+ warn('TT: more functions defined than expected');
+ ttContext.hintsValid = false;
+ return;
+ }
+ for (var j = 0, jj = ttContext.functionsUsed.length; j < jj; j++) {
+ if (j > maxFunctionDefs) {
+ warn('TT: invalid function id: ' + j);
+ ttContext.hintsValid = false;
+ return;
+ }
+ if (ttContext.functionsUsed[j] && !ttContext.functionsDefined[j]) {
+ warn('TT: undefined function: ' + j);
+ ttContext.hintsValid = false;
+ return;
+ }
+ }
+ }
+
+ function foldTTTable(table, content) {
+ if (content.length > 1) {
+ // concatenating the content items
+ var newLength = 0;
+ var j, jj;
+ for (j = 0, jj = content.length; j < jj; j++) {
+ newLength += content[j].length;
+ }
+ newLength = (newLength + 3) & ~3;
+ var result = new Uint8Array(newLength);
+ var pos = 0;
+ for (j = 0, jj = content.length; j < jj; j++) {
+ result.set(content[j], pos);
+ pos += content[j].length;
+ }
+ table.data = result;
+ table.length = newLength;
+ }
+ }
+
+ function sanitizeTTPrograms(fpgm, prep, cvt) {
+ var ttContext = {
+ functionsDefined: [],
+ functionsUsed: [],
+ functionsStackDeltas: [],
+ tooComplexToFollowFunctions: false,
+ hintsValid: true
+ };
+ if (fpgm) {
+ sanitizeTTProgram(fpgm, ttContext);
+ }
+ if (prep) {
+ sanitizeTTProgram(prep, ttContext);
+ }
+ if (fpgm) {
+ checkInvalidFunctions(ttContext, maxFunctionDefs);
+ }
+ if (cvt && (cvt.length & 1)) {
+ var cvtData = new Uint8Array(cvt.length + 1);
+ cvtData.set(cvt.data);
+ cvt.data = cvtData;
+ }
+ return ttContext.hintsValid;
+ }
+
+ // The following steps modify the original font data, making copy
+ font = new Stream(new Uint8Array(font.getBytes()));
+
+ var VALID_TABLES = ['OS/2', 'cmap', 'head', 'hhea', 'hmtx', 'maxp',
+ 'name', 'post', 'loca', 'glyf', 'fpgm', 'prep', 'cvt ', 'CFF '];
+
+ var header = readOpenTypeHeader(font);
+ var numTables = header.numTables;
+ var cff, cffFile;
+
+ var tables = { 'OS/2': null, cmap: null, head: null, hhea: null,
+ hmtx: null, maxp: null, name: null, post: null };
+ var table;
+ for (var i = 0; i < numTables; i++) {
+ table = readTableEntry(font);
+ if (VALID_TABLES.indexOf(table.tag) < 0) {
+ continue; // skipping table if it's not a required or optional table
+ }
+ if (table.length === 0) {
+ continue; // skipping empty tables
+ }
+ tables[table.tag] = table;
+ }
+
+ var isTrueType = !tables['CFF '];
+ if (!isTrueType) {
+ // OpenType font
+ if (header.version === 'OTTO' ||
+ !tables.head || !tables.hhea || !tables.maxp || !tables.post) {
+ // no major tables: throwing everything at CFFFont
+ cffFile = new Stream(tables['CFF '].data);
+ cff = new CFFFont(cffFile, properties);
+
+ return this.convert(name, cff, properties);
+ }
+
+ delete tables.glyf;
+ delete tables.loca;
+ delete tables.fpgm;
+ delete tables.prep;
+ delete tables['cvt '];
+ this.isOpenType = true;
+ } else {
+ if (!tables.glyf || !tables.loca) {
+ error('Required "glyf" or "loca" tables are not found');
+ }
+ this.isOpenType = false;
+ }
+
+ if (!tables.maxp) {
+ error('Required "maxp" table is not found');
+ }
+
+ font.pos = (font.start || 0) + tables.maxp.offset;
+ var version = font.getInt32();
+ var numGlyphs = font.getUint16();
+ var maxFunctionDefs = 0;
+ if (version >= 0x00010000 && tables.maxp.length >= 22) {
+ // maxZones can be invalid
+ font.pos += 8;
+ var maxZones = font.getUint16();
+ if (maxZones > 2) { // reset to 2 if font has invalid maxZones
+ tables.maxp.data[14] = 0;
+ tables.maxp.data[15] = 2;
+ }
+ font.pos += 4;
+ maxFunctionDefs = font.getUint16();
+ }
+
+ var dupFirstEntry = false;
+ if (properties.type === 'CIDFontType2' && properties.toUnicode &&
+ properties.toUnicode.get(0) > '\u0000') {
+ // oracle's defect (see 3427), duplicating first entry
+ dupFirstEntry = true;
+ numGlyphs++;
+ tables.maxp.data[4] = numGlyphs >> 8;
+ tables.maxp.data[5] = numGlyphs & 255;
+ }
+
+ var hintsValid = sanitizeTTPrograms(tables.fpgm, tables.prep,
+ tables['cvt '], maxFunctionDefs);
+ if (!hintsValid) {
+ delete tables.fpgm;
+ delete tables.prep;
+ delete tables['cvt '];
+ }
+
+ // Ensure the hmtx table contains the advance width and
+ // sidebearings information for numGlyphs in the maxp table
+ sanitizeMetrics(font, tables.hhea, tables.hmtx, numGlyphs);
+
+ if (!tables.head) {
+ error('Required "head" table is not found');
+ }
+
+ sanitizeHead(tables.head, numGlyphs, isTrueType ? tables.loca.length : 0);
+
+ var missingGlyphs = {};
+ if (isTrueType) {
+ var isGlyphLocationsLong = int16(tables.head.data[50],
+ tables.head.data[51]);
+ missingGlyphs = sanitizeGlyphLocations(tables.loca, tables.glyf,
+ numGlyphs, isGlyphLocationsLong,
+ hintsValid, dupFirstEntry);
+ }
+
+ if (!tables.hhea) {
+ error('Required "hhea" table is not found');
+ }
+
+ // Sanitizer reduces the glyph advanceWidth to the maxAdvanceWidth
+ // Sometimes it's 0. That needs to be fixed
+ if (tables.hhea.data[10] === 0 && tables.hhea.data[11] === 0) {
+ tables.hhea.data[10] = 0xFF;
+ tables.hhea.data[11] = 0xFF;
+ }
+
+ // The 'post' table has glyphs names.
+ if (tables.post) {
+ var valid = readPostScriptTable(tables.post, properties, numGlyphs);
+ if (!valid) {
+ tables.post = null;
+ }
+ }
+
+ var charCodeToGlyphId = [], charCode, toUnicode = properties.toUnicode;
+
+ function hasGlyph(glyphId, charCode) {
+ if (!missingGlyphs[glyphId]) {
+ return true;
+ }
+ if (charCode >= 0 && toUnicode.has(charCode)) {
+ return true;
+ }
+ return false;
+ }
+
+ if (properties.type === 'CIDFontType2') {
+ var cidToGidMap = properties.cidToGidMap || [];
+ var isCidToGidMapEmpty = cidToGidMap.length === 0;
+
+ properties.cMap.forEach(function(charCode, cid) {
+ assert(cid <= 0xffff, 'Max size of CID is 65,535');
+ var glyphId = -1;
+ if (isCidToGidMapEmpty) {
+ glyphId = charCode;
+ } else if (cidToGidMap[cid] !== undefined) {
+ glyphId = cidToGidMap[cid];
+ }
+
+ if (glyphId >= 0 && glyphId < numGlyphs &&
+ hasGlyph(glyphId, charCode)) {
+ charCodeToGlyphId[charCode] = glyphId;
+ }
+ });
+ if (dupFirstEntry) {
+ charCodeToGlyphId[0] = numGlyphs - 1;
+ }
+ } else {
+ // Most of the following logic in this code branch is based on the
+ // 9.6.6.4 of the PDF spec.
+ var cmapTable = readCmapTable(tables.cmap, font, this.isSymbolicFont);
+ var cmapPlatformId = cmapTable.platformId;
+ var cmapEncodingId = cmapTable.encodingId;
+ var cmapMappings = cmapTable.mappings;
+ var cmapMappingsLength = cmapMappings.length;
+ var hasEncoding = properties.differences.length ||
+ !!properties.baseEncodingName;
+
+ // The spec seems to imply that if the font is symbolic the encoding
+ // should be ignored, this doesn't appear to work for 'preistabelle.pdf'
+ // where the the font is symbolic and it has an encoding.
+ if (hasEncoding &&
+ (cmapPlatformId === 3 && cmapEncodingId === 1 ||
+ cmapPlatformId === 1 && cmapEncodingId === 0) ||
+ (cmapPlatformId === -1 && cmapEncodingId === -1 && // Temporary hack
+ !!Encodings[properties.baseEncodingName])) { // Temporary hack
+ // When no preferred cmap table was found and |baseEncodingName| is
+ // one of the predefined encodings, we seem to obtain a better
+ // |charCodeToGlyphId| map from the code below (fixes bug 1057544).
+ // TODO: Note that this is a hack which should be removed as soon as
+ // we have proper support for more exotic cmap tables.
+
+ var baseEncoding = [];
+ if (properties.baseEncodingName === 'MacRomanEncoding' ||
+ properties.baseEncodingName === 'WinAnsiEncoding') {
+ baseEncoding = Encodings[properties.baseEncodingName];
+ }
+ for (charCode = 0; charCode < 256; charCode++) {
+ var glyphName;
+ if (this.differences && charCode in this.differences) {
+ glyphName = this.differences[charCode];
+ } else if (charCode in baseEncoding &&
+ baseEncoding[charCode] !== '') {
+ glyphName = baseEncoding[charCode];
+ } else {
+ glyphName = Encodings.StandardEncoding[charCode];
+ }
+ if (!glyphName) {
+ continue;
+ }
+ var unicodeOrCharCode;
+ if (cmapPlatformId === 3 && cmapEncodingId === 1) {
+ unicodeOrCharCode = GlyphsUnicode[glyphName];
+ } else if (cmapPlatformId === 1 && cmapEncodingId === 0) {
+ // TODO: the encoding needs to be updated with mac os table.
+ unicodeOrCharCode = Encodings.MacRomanEncoding.indexOf(glyphName);
+ }
+
+ var found = false;
+ for (i = 0; i < cmapMappingsLength; ++i) {
+ if (cmapMappings[i].charCode === unicodeOrCharCode &&
+ hasGlyph(cmapMappings[i].glyphId, unicodeOrCharCode)) {
+ charCodeToGlyphId[charCode] = cmapMappings[i].glyphId;
+ found = true;
+ break;
+ }
+ }
+ if (!found && properties.glyphNames) {
+ // Try to map using the post table. There are currently no known
+ // pdfs that this fixes.
+ var glyphId = properties.glyphNames.indexOf(glyphName);
+ if (glyphId > 0 && hasGlyph(glyphId, -1)) {
+ charCodeToGlyphId[charCode] = glyphId;
+ }
+ }
+ }
+ } else if (cmapPlatformId === 0 && cmapEncodingId === 0) {
+ // Default Unicode semantics, use the charcodes as is.
+ for (i = 0; i < cmapMappingsLength; ++i) {
+ charCodeToGlyphId[cmapMappings[i].charCode] =
+ cmapMappings[i].glyphId;
+ }
+ } else {
+ // For (3, 0) cmap tables:
+ // The charcode key being stored in charCodeToGlyphId is the lower
+ // byte of the two-byte charcodes of the cmap table since according to
+ // the spec: 'each byte from the string shall be prepended with the
+ // high byte of the range [of charcodes in the cmap table], to form
+ // a two-byte character, which shall be used to select the
+ // associated glyph description from the subtable'.
+ //
+ // For (1, 0) cmap tables:
+ // 'single bytes from the string shall be used to look up the
+ // associated glyph descriptions from the subtable'. This means
+ // charcodes in the cmap will be single bytes, so no-op since
+ // glyph.charCode & 0xFF === glyph.charCode
+ for (i = 0; i < cmapMappingsLength; ++i) {
+ charCode = cmapMappings[i].charCode & 0xFF;
+ charCodeToGlyphId[charCode] = cmapMappings[i].glyphId;
+ }
+ }
+ }
+
+ if (charCodeToGlyphId.length === 0) {
+ // defines at least one glyph
+ charCodeToGlyphId[0] = 0;
+ }
+
+ // Converting glyphs and ids into font's cmap table
+ var newMapping = adjustMapping(charCodeToGlyphId, properties);
+ this.toFontChar = newMapping.toFontChar;
+ tables.cmap = {
+ tag: 'cmap',
+ data: createCmapTable(newMapping.charCodeToGlyphId)
+ };
+
+ if (!tables['OS/2'] || !validateOS2Table(tables['OS/2'])) {
+ // extract some more font properties from the OpenType head and
+ // hhea tables; yMin and descent value are always negative
+ var override = {
+ unitsPerEm: int16(tables.head.data[18], tables.head.data[19]),
+ yMax: int16(tables.head.data[42], tables.head.data[43]),
+ yMin: int16(tables.head.data[38], tables.head.data[39]) - 0x10000,
+ ascent: int16(tables.hhea.data[4], tables.hhea.data[5]),
+ descent: int16(tables.hhea.data[6], tables.hhea.data[7]) - 0x10000
+ };
+
+ tables['OS/2'] = {
+ tag: 'OS/2',
+ data: createOS2Table(properties, newMapping.charCodeToGlyphId,
+ override)
+ };
+ }
+
+ // Rewrite the 'post' table if needed
+ if (!tables.post) {
+ tables.post = {
+ tag: 'post',
+ data: createPostTable(properties)
+ };
+ }
+
+ if (!isTrueType) {
+ try {
+ // Trying to repair CFF file
+ cffFile = new Stream(tables['CFF '].data);
+ var parser = new CFFParser(cffFile, properties);
+ cff = parser.parse();
+ var compiler = new CFFCompiler(cff);
+ tables['CFF '].data = compiler.compile();
+ } catch (e) {
+ warn('Failed to compile font ' + properties.loadedName);
+ }
+ }
+
+ // Re-creating 'name' table
+ if (!tables.name) {
+ tables.name = {
+ tag: 'name',
+ data: createNameTable(this.name)
+ };
+ } else {
+ // ... using existing 'name' table as prototype
+ var namePrototype = readNameTable(tables.name);
+ tables.name.data = createNameTable(name, namePrototype);
+ }
+
+ var builder = new OpenTypeFileBuilder(header.version);
+ for (var tableTag in tables) {
+ builder.addTable(tableTag, tables[tableTag].data);
+ }
+ return builder.toArray();
+ },
+
+ convert: function Font_convert(fontName, font, properties) {
+ // TODO: Check the charstring widths to determine this.
+ properties.fixedPitch = false;
+
+ var mapping = font.getGlyphMapping(properties);
+ var newMapping = adjustMapping(mapping, properties);
+ this.toFontChar = newMapping.toFontChar;
+ var numGlyphs = font.numGlyphs;
+
+ function getCharCodes(charCodeToGlyphId, glyphId) {
+ var charCodes = null;
+ for (var charCode in charCodeToGlyphId) {
+ if (glyphId === charCodeToGlyphId[charCode]) {
+ if (!charCodes) {
+ charCodes = [];
+ }
+ charCodes.push(charCode | 0);
+ }
+ }
+ return charCodes;
+ }
+
+ function createCharCode(charCodeToGlyphId, glyphId) {
+ for (var charCode in charCodeToGlyphId) {
+ if (glyphId === charCodeToGlyphId[charCode]) {
+ return charCode | 0;
+ }
+ }
+ newMapping.charCodeToGlyphId[newMapping.nextAvailableFontCharCode] =
+ glyphId;
+ return newMapping.nextAvailableFontCharCode++;
+ }
+
+ var seacs = font.seacs;
+ if (SEAC_ANALYSIS_ENABLED && seacs && seacs.length) {
+ var matrix = properties.fontMatrix || FONT_IDENTITY_MATRIX;
+ var charset = font.getCharset();
+ var seacMap = Object.create(null);
+ for (var glyphId in seacs) {
+ glyphId |= 0;
+ var seac = seacs[glyphId];
+ var baseGlyphName = Encodings.StandardEncoding[seac[2]];
+ var accentGlyphName = Encodings.StandardEncoding[seac[3]];
+ var baseGlyphId = charset.indexOf(baseGlyphName);
+ var accentGlyphId = charset.indexOf(accentGlyphName);
+ if (baseGlyphId < 0 || accentGlyphId < 0) {
+ continue;
+ }
+ var accentOffset = {
+ x: seac[0] * matrix[0] + seac[1] * matrix[2] + matrix[4],
+ y: seac[0] * matrix[1] + seac[1] * matrix[3] + matrix[5]
+ };
+
+ var charCodes = getCharCodes(mapping, glyphId);
+ if (!charCodes) {
+ // There's no point in mapping it if the char code was never mapped
+ // to begin with.
+ continue;
+ }
+ for (var i = 0, ii = charCodes.length; i < ii; i++) {
+ var charCode = charCodes[i];
+ // Find a fontCharCode that maps to the base and accent glyphs.
+ // If one doesn't exists, create it.
+ var charCodeToGlyphId = newMapping.charCodeToGlyphId;
+ var baseFontCharCode = createCharCode(charCodeToGlyphId,
+ baseGlyphId);
+ var accentFontCharCode = createCharCode(charCodeToGlyphId,
+ accentGlyphId);
+ seacMap[charCode] = {
+ baseFontCharCode: baseFontCharCode,
+ accentFontCharCode: accentFontCharCode,
+ accentOffset: accentOffset
+ };
+ }
+ }
+ properties.seacMap = seacMap;
+ }
+
+ var unitsPerEm = 1 / (properties.fontMatrix || FONT_IDENTITY_MATRIX)[0];
+
+ var builder = new OpenTypeFileBuilder('\x4F\x54\x54\x4F');
+ // PostScript Font Program
+ builder.addTable('CFF ', font.data);
+ // OS/2 and Windows Specific metrics
+ builder.addTable('OS/2', createOS2Table(properties,
+ newMapping.charCodeToGlyphId));
+ // Character to glyphs mapping
+ builder.addTable('cmap', createCmapTable(newMapping.charCodeToGlyphId));
+ // Font header
+ builder.addTable('head',
+ '\x00\x01\x00\x00' + // Version number
+ '\x00\x00\x10\x00' + // fontRevision
+ '\x00\x00\x00\x00' + // checksumAdjustement
+ '\x5F\x0F\x3C\xF5' + // magicNumber
+ '\x00\x00' + // Flags
+ safeString16(unitsPerEm) + // unitsPerEM
+ '\x00\x00\x00\x00\x9e\x0b\x7e\x27' + // creation date
+ '\x00\x00\x00\x00\x9e\x0b\x7e\x27' + // modifification date
+ '\x00\x00' + // xMin
+ safeString16(properties.descent) + // yMin
+ '\x0F\xFF' + // xMax
+ safeString16(properties.ascent) + // yMax
+ string16(properties.italicAngle ? 2 : 0) + // macStyle
+ '\x00\x11' + // lowestRecPPEM
+ '\x00\x00' + // fontDirectionHint
+ '\x00\x00' + // indexToLocFormat
+ '\x00\x00'); // glyphDataFormat
+
+ // Horizontal header
+ builder.addTable('hhea',
+ '\x00\x01\x00\x00' + // Version number
+ safeString16(properties.ascent) + // Typographic Ascent
+ safeString16(properties.descent) + // Typographic Descent
+ '\x00\x00' + // Line Gap
+ '\xFF\xFF' + // advanceWidthMax
+ '\x00\x00' + // minLeftSidebearing
+ '\x00\x00' + // minRightSidebearing
+ '\x00\x00' + // xMaxExtent
+ safeString16(properties.capHeight) + // caretSlopeRise
+ safeString16(Math.tan(properties.italicAngle) *
+ properties.xHeight) + // caretSlopeRun
+ '\x00\x00' + // caretOffset
+ '\x00\x00' + // -reserved-
+ '\x00\x00' + // -reserved-
+ '\x00\x00' + // -reserved-
+ '\x00\x00' + // -reserved-
+ '\x00\x00' + // metricDataFormat
+ string16(numGlyphs)); // Number of HMetrics
+
+ // Horizontal metrics
+ builder.addTable('hmtx', (function fontFieldsHmtx() {
+ var charstrings = font.charstrings;
+ var cffWidths = font.cff ? font.cff.widths : null;
+ var hmtx = '\x00\x00\x00\x00'; // Fake .notdef
+ for (var i = 1, ii = numGlyphs; i < ii; i++) {
+ var width = 0;
+ if (charstrings) {
+ var charstring = charstrings[i - 1];
+ width = 'width' in charstring ? charstring.width : 0;
+ } else if (cffWidths) {
+ width = Math.ceil(cffWidths[i] || 0);
+ }
+ hmtx += string16(width) + string16(0);
+ }
+ return hmtx;
+ })());
+
+ // Maximum profile
+ builder.addTable('maxp',
+ '\x00\x00\x50\x00' + // Version number
+ string16(numGlyphs)); // Num of glyphs
+
+ // Naming tables
+ builder.addTable('name', createNameTable(fontName));
+
+ // PostScript informations
+ builder.addTable('post', createPostTable(properties));
+
+ return builder.toArray();
+ },
+
+ /**
+ * Builds a char code to unicode map based on section 9.10 of the spec.
+ * @param {Object} properties Font properties object.
+ * @return {Object} A ToUnicodeMap object.
+ */
+ buildToUnicode: function Font_buildToUnicode(properties) {
+ // Section 9.10.2 Mapping Character Codes to Unicode Values
+ if (properties.toUnicode && properties.toUnicode.length !== 0) {
+ return properties.toUnicode;
+ }
+ // According to the spec if the font is a simple font we should only map
+ // to unicode if the base encoding is MacRoman, MacExpert, or WinAnsi or
+ // the differences array only contains adobe standard or symbol set names,
+ // in pratice it seems better to always try to create a toUnicode
+ // map based of the default encoding.
+ var toUnicode, charcode;
+ if (!properties.composite /* is simple font */) {
+ toUnicode = [];
+ var encoding = properties.defaultEncoding.slice();
+ var baseEncodingName = properties.baseEncodingName;
+ // Merge in the differences array.
+ var differences = properties.differences;
+ for (charcode in differences) {
+ encoding[charcode] = differences[charcode];
+ }
+ for (charcode in encoding) {
+ // a) Map the character code to a character name.
+ var glyphName = encoding[charcode];
+ // b) Look up the character name in the Adobe Glyph List (see the
+ // Bibliography) to obtain the corresponding Unicode value.
+ if (glyphName === '') {
+ continue;
+ } else if (GlyphsUnicode[glyphName] === undefined) {
+ // (undocumented) c) Few heuristics to recognize unknown glyphs
+ // NOTE: Adobe Reader does not do this step, but OSX Preview does
+ var code = 0;
+ switch (glyphName[0]) {
+ case 'G': // Gxx glyph
+ if (glyphName.length === 3) {
+ code = parseInt(glyphName.substr(1), 16);
+ }
+ break;
+ case 'g': // g00xx glyph
+ if (glyphName.length === 5) {
+ code = parseInt(glyphName.substr(1), 16);
+ }
+ break;
+ case 'C': // Cddd glyph
+ case 'c': // cddd glyph
+ if (glyphName.length >= 3) {
+ code = +glyphName.substr(1);
+ }
+ break;
+ }
+ if (code) {
+ // If |baseEncodingName| is one the predefined encodings,
+ // and |code| equals |charcode|, using the glyph defined in the
+ // baseEncoding seems to yield a better |toUnicode| mapping
+ // (fixes issue 5070).
+ if (baseEncodingName && code === +charcode) {
+ var baseEncoding = Encodings[baseEncodingName];
+ if (baseEncoding && (glyphName = baseEncoding[charcode])) {
+ toUnicode[charcode] =
+ String.fromCharCode(GlyphsUnicode[glyphName]);
+ continue;
+ }
+ }
+ toUnicode[charcode] = String.fromCharCode(code);
+ }
+ continue;
+ }
+ toUnicode[charcode] = String.fromCharCode(GlyphsUnicode[glyphName]);
+ }
+ return new ToUnicodeMap(toUnicode);
+ }
+ // If the font is a composite font that uses one of the predefined CMaps
+ // listed in Table 118 (except Identity–H and Identity–V) or whose
+ // descendant CIDFont uses the Adobe-GB1, Adobe-CNS1, Adobe-Japan1, or
+ // Adobe-Korea1 character collection:
+ if (properties.composite && (
+ (properties.cMap.builtInCMap &&
+ !(properties.cMap instanceof IdentityCMap)) ||
+ (properties.cidSystemInfo.registry === 'Adobe' &&
+ (properties.cidSystemInfo.ordering === 'GB1' ||
+ properties.cidSystemInfo.ordering === 'CNS1' ||
+ properties.cidSystemInfo.ordering === 'Japan1' ||
+ properties.cidSystemInfo.ordering === 'Korea1')))) {
+ // Then:
+ // a) Map the character code to a character identifier (CID) according
+ // to the font’s CMap.
+ // b) Obtain the registry and ordering of the character collection used
+ // by the font’s CMap (for example, Adobe and Japan1) from its
+ // CIDSystemInfo dictionary.
+ var registry = properties.cidSystemInfo.registry;
+ var ordering = properties.cidSystemInfo.ordering;
+ // c) Construct a second CMap name by concatenating the registry and
+ // ordering obtained in step (b) in the format registry–ordering–UCS2
+ // (for example, Adobe–Japan1–UCS2).
+ var ucs2CMapName = new Name(registry + '-' + ordering + '-UCS2');
+ // d) Obtain the CMap with the name constructed in step (c) (available
+ // from the ASN Web site; see the Bibliography).
+ var ucs2CMap = CMapFactory.create(ucs2CMapName,
+ { url: PDFJS.cMapUrl, packed: PDFJS.cMapPacked }, null);
+ var cMap = properties.cMap;
+ toUnicode = [];
+ cMap.forEach(function(charcode, cid) {
+ assert(cid <= 0xffff, 'Max size of CID is 65,535');
+ // e) Map the CID obtained in step (a) according to the CMap obtained
+ // in step (d), producing a Unicode value.
+ var ucs2 = ucs2CMap.lookup(cid);
+ if (ucs2) {
+ toUnicode[charcode] =
+ String.fromCharCode((ucs2.charCodeAt(0) << 8) +
+ ucs2.charCodeAt(1));
+ }
+ });
+ return new ToUnicodeMap(toUnicode);
+ }
+
+ // The viewer's choice, just use an identity map.
+ return new IdentityToUnicodeMap(properties.firstChar,
+ properties.lastChar);
+ },
+
+ get spaceWidth() {
+ if ('_shadowWidth' in this) {
+ return this._shadowWidth;
+ }
+
+ // trying to estimate space character width
+ var possibleSpaceReplacements = ['space', 'minus', 'one', 'i'];
+ var width;
+ for (var i = 0, ii = possibleSpaceReplacements.length; i < ii; i++) {
+ var glyphName = possibleSpaceReplacements[i];
+ // if possible, getting width by glyph name
+ if (glyphName in this.widths) {
+ width = this.widths[glyphName];
+ break;
+ }
+ var glyphUnicode = GlyphsUnicode[glyphName];
+ // finding the charcode via unicodeToCID map
+ var charcode = 0;
+ if (this.composite) {
+ if (this.cMap.contains(glyphUnicode)) {
+ charcode = this.cMap.lookup(glyphUnicode);
+ }
+ }
+ // ... via toUnicode map
+ if (!charcode && 'toUnicode' in this) {
+ charcode = this.toUnicode.charCodeOf(glyphUnicode);
+ }
+ // setting it to unicode if negative or undefined
+ if (charcode <= 0) {
+ charcode = glyphUnicode;
+ }
+ // trying to get width via charcode
+ width = this.widths[charcode];
+ if (width) {
+ break; // the non-zero width found
+ }
+ }
+ width = width || this.defaultWidth;
+ // Do not shadow the property here. See discussion:
+ // https://github.com/mozilla/pdf.js/pull/2127#discussion_r1662280
+ this._shadowWidth = width;
+ return width;
+ },
+
+ charToGlyph: function Font_charToGlyph(charcode) {
+ var fontCharCode, width, operatorListId;
+
+ var widthCode = charcode;
+ if (this.cMap && this.cMap.contains(charcode)) {
+ widthCode = this.cMap.lookup(charcode);
+ }
+ width = this.widths[widthCode];
+ width = isNum(width) ? width : this.defaultWidth;
+ var vmetric = this.vmetrics && this.vmetrics[widthCode];
+
+ var unicode = this.toUnicode.get(charcode) || charcode;
+ if (typeof unicode === 'number') {
+ unicode = String.fromCharCode(unicode);
+ }
+
+ // First try the toFontChar map, if it's not there then try falling
+ // back to the char code.
+ fontCharCode = this.toFontChar[charcode] || charcode;
+ if (this.missingFile) {
+ fontCharCode = mapSpecialUnicodeValues(fontCharCode);
+ }
+
+ if (this.isType3Font) {
+ // Font char code in this case is actually a glyph name.
+ operatorListId = fontCharCode;
+ }
+
+ var accent = null;
+ if (this.seacMap && this.seacMap[charcode]) {
+ var seac = this.seacMap[charcode];
+ fontCharCode = seac.baseFontCharCode;
+ accent = {
+ fontChar: String.fromCharCode(seac.accentFontCharCode),
+ offset: seac.accentOffset
+ };
+ }
+
+ var fontChar = String.fromCharCode(fontCharCode);
+
+ var glyph = this.glyphCache[charcode];
+ if (!glyph ||
+ !glyph.matchesForCache(fontChar, unicode, accent, width, vmetric,
+ operatorListId)) {
+ glyph = new Glyph(fontChar, unicode, accent, width, vmetric,
+ operatorListId);
+ this.glyphCache[charcode] = glyph;
+ }
+ return glyph;
+ },
+
+ charsToGlyphs: function Font_charsToGlyphs(chars) {
+ var charsCache = this.charsCache;
+ var glyphs, glyph, charcode;
+
+ // if we translated this string before, just grab it from the cache
+ if (charsCache) {
+ glyphs = charsCache[chars];
+ if (glyphs) {
+ return glyphs;
+ }
+ }
+
+ // lazily create the translation cache
+ if (!charsCache) {
+ charsCache = this.charsCache = Object.create(null);
+ }
+
+ glyphs = [];
+ var charsCacheKey = chars;
+ var i = 0, ii;
+
+ if (this.cMap) {
+ // composite fonts have multi-byte strings convert the string from
+ // single-byte to multi-byte
+ var c = {};
+ while (i < chars.length) {
+ this.cMap.readCharCode(chars, i, c);
+ charcode = c.charcode;
+ var length = c.length;
+ i += length;
+ glyph = this.charToGlyph(charcode);
+ glyphs.push(glyph);
+ // placing null after each word break charcode (ASCII SPACE)
+ // Ignore occurences of 0x20 in multiple-byte codes.
+ if (length === 1 && chars.charCodeAt(i - 1) === 0x20) {
+ glyphs.push(null);
+ }
+ }
+ } else {
+ for (i = 0, ii = chars.length; i < ii; ++i) {
+ charcode = chars.charCodeAt(i);
+ glyph = this.charToGlyph(charcode);
+ glyphs.push(glyph);
+ if (charcode === 0x20) {
+ glyphs.push(null);
+ }
+ }
+ }
+
+ // Enter the translated string into the cache
+ return (charsCache[charsCacheKey] = glyphs);
+ }
+ };
+
+ return Font;
+})();
+
+var ErrorFont = (function ErrorFontClosure() {
+ function ErrorFont(error) {
+ this.error = error;
+ this.loadedName = 'g_font_error';
+ this.loading = false;
+ }
+
+ ErrorFont.prototype = {
+ charsToGlyphs: function ErrorFont_charsToGlyphs() {
+ return [];
+ },
+ exportData: function ErrorFont_exportData() {
+ return {error: this.error};
+ }
+ };
+
+ return ErrorFont;
+})();
+
+/**
+ * Shared logic for building a char code to glyph id mapping for Type1 and
+ * simple CFF fonts. See section 9.6.6.2 of the spec.
+ * @param {Object} properties Font properties object.
+ * @param {Object} builtInEncoding The encoding contained within the actual font
+ * data.
+ * @param {Array} Array of glyph names where the index is the glyph ID.
+ * @returns {Object} A char code to glyph ID map.
+ */
+function type1FontGlyphMapping(properties, builtInEncoding, glyphNames) {
+ var charCodeToGlyphId = Object.create(null);
+ var glyphId, charCode, baseEncoding;
+
+ if (properties.baseEncodingName) {
+ // If a valid base encoding name was used, the mapping is initialized with
+ // that.
+ baseEncoding = Encodings[properties.baseEncodingName];
+ for (charCode = 0; charCode < baseEncoding.length; charCode++) {
+ glyphId = glyphNames.indexOf(baseEncoding[charCode]);
+ if (glyphId >= 0) {
+ charCodeToGlyphId[charCode] = glyphId;
+ } else {
+ charCodeToGlyphId[charCode] = 0; // notdef
+ }
+ }
+ } else if (!!(properties.flags & FontFlags.Symbolic)) {
+ // For a symbolic font the encoding should be the fonts built-in
+ // encoding.
+ for (charCode in builtInEncoding) {
+ charCodeToGlyphId[charCode] = builtInEncoding[charCode];
+ }
+ } else {
+ // For non-symbolic fonts that don't have a base encoding the standard
+ // encoding should be used.
+ baseEncoding = Encodings.StandardEncoding;
+ for (charCode = 0; charCode < baseEncoding.length; charCode++) {
+ glyphId = glyphNames.indexOf(baseEncoding[charCode]);
+ if (glyphId >= 0) {
+ charCodeToGlyphId[charCode] = glyphId;
+ } else {
+ charCodeToGlyphId[charCode] = 0; // notdef
+ }
+ }
+ }
+
+ // Lastly, merge in the differences.
+ var differences = properties.differences;
+ if (differences) {
+ for (charCode in differences) {
+ var glyphName = differences[charCode];
+ glyphId = glyphNames.indexOf(glyphName);
+ if (glyphId >= 0) {
+ charCodeToGlyphId[charCode] = glyphId;
+ } else {
+ charCodeToGlyphId[charCode] = 0; // notdef
+ }
+ }
+ }
+ return charCodeToGlyphId;
+}
+
+/*
+ * CharStrings are encoded following the the CharString Encoding sequence
+ * describe in Chapter 6 of the "Adobe Type1 Font Format" specification.
+ * The value in a byte indicates a command, a number, or subsequent bytes
+ * that are to be interpreted in a special way.
+ *
+ * CharString Number Encoding:
+ * A CharString byte containing the values from 32 through 255 inclusive
+ * indicate an integer. These values are decoded in four ranges.
+ *
+ * 1. A CharString byte containing a value, v, between 32 and 246 inclusive,
+ * indicate the integer v - 139. Thus, the integer values from -107 through
+ * 107 inclusive may be encoded in single byte.
+ *
+ * 2. A CharString byte containing a value, v, between 247 and 250 inclusive,
+ * indicates an integer involving the next byte, w, according to the formula:
+ * [(v - 247) x 256] + w + 108
+ *
+ * 3. A CharString byte containing a value, v, between 251 and 254 inclusive,
+ * indicates an integer involving the next byte, w, according to the formula:
+ * -[(v - 251) * 256] - w - 108
+ *
+ * 4. A CharString containing the value 255 indicates that the next 4 bytes
+ * are a two complement signed integer. The first of these bytes contains the
+ * highest order bits, the second byte contains the next higher order bits
+ * and the fourth byte contain the lowest order bits.
+ *
+ *
+ * CharString Command Encoding:
+ * CharStrings commands are encoded in 1 or 2 bytes.
+ *
+ * Single byte commands are encoded in 1 byte that contains a value between
+ * 0 and 31 inclusive.
+ * If a command byte contains the value 12, then the value in the next byte
+ * indicates a command. This "escape" mechanism allows many extra commands
+ * to be encoded and this encoding technique helps to minimize the length of
+ * the charStrings.
+ */
+var Type1CharString = (function Type1CharStringClosure() {
+ var COMMAND_MAP = {
+ 'hstem': [1],
+ 'vstem': [3],
+ 'vmoveto': [4],
+ 'rlineto': [5],
+ 'hlineto': [6],
+ 'vlineto': [7],
+ 'rrcurveto': [8],
+ 'callsubr': [10],
+ 'flex': [12, 35],
+ 'drop' : [12, 18],
+ 'endchar': [14],
+ 'rmoveto': [21],
+ 'hmoveto': [22],
+ 'vhcurveto': [30],
+ 'hvcurveto': [31]
+ };
+
+ function Type1CharString() {
+ this.width = 0;
+ this.lsb = 0;
+ this.flexing = false;
+ this.output = [];
+ this.stack = [];
+ }
+
+ Type1CharString.prototype = {
+ convert: function Type1CharString_convert(encoded, subrs) {
+ var count = encoded.length;
+ var error = false;
+ var wx, sbx, subrNumber;
+ for (var i = 0; i < count; i++) {
+ var value = encoded[i];
+ if (value < 32) {
+ if (value === 12) {
+ value = (value << 8) + encoded[++i];
+ }
+ switch (value) {
+ case 1: // hstem
+ if (!HINTING_ENABLED) {
+ this.stack = [];
+ break;
+ }
+ error = this.executeCommand(2, COMMAND_MAP.hstem);
+ break;
+ case 3: // vstem
+ if (!HINTING_ENABLED) {
+ this.stack = [];
+ break;
+ }
+ error = this.executeCommand(2, COMMAND_MAP.vstem);
+ break;
+ case 4: // vmoveto
+ if (this.flexing) {
+ if (this.stack.length < 1) {
+ error = true;
+ break;
+ }
+ // Add the dx for flex and but also swap the values so they are
+ // the right order.
+ var dy = this.stack.pop();
+ this.stack.push(0, dy);
+ break;
+ }
+ error = this.executeCommand(1, COMMAND_MAP.vmoveto);
+ break;
+ case 5: // rlineto
+ error = this.executeCommand(2, COMMAND_MAP.rlineto);
+ break;
+ case 6: // hlineto
+ error = this.executeCommand(1, COMMAND_MAP.hlineto);
+ break;
+ case 7: // vlineto
+ error = this.executeCommand(1, COMMAND_MAP.vlineto);
+ break;
+ case 8: // rrcurveto
+ error = this.executeCommand(6, COMMAND_MAP.rrcurveto);
+ break;
+ case 9: // closepath
+ // closepath is a Type1 command that does not take argument and is
+ // useless in Type2 and it can simply be ignored.
+ this.stack = [];
+ break;
+ case 10: // callsubr
+ if (this.stack.length < 1) {
+ error = true;
+ break;
+ }
+ subrNumber = this.stack.pop();
+ error = this.convert(subrs[subrNumber], subrs);
+ break;
+ case 11: // return
+ return error;
+ case 13: // hsbw
+ if (this.stack.length < 2) {
+ error = true;
+ break;
+ }
+ // To convert to type2 we have to move the width value to the
+ // first part of the charstring and then use hmoveto with lsb.
+ wx = this.stack.pop();
+ sbx = this.stack.pop();
+ this.lsb = sbx;
+ this.width = wx;
+ this.stack.push(wx, sbx);
+ error = this.executeCommand(2, COMMAND_MAP.hmoveto);
+ break;
+ case 14: // endchar
+ this.output.push(COMMAND_MAP.endchar[0]);
+ break;
+ case 21: // rmoveto
+ if (this.flexing) {
+ break;
+ }
+ error = this.executeCommand(2, COMMAND_MAP.rmoveto);
+ break;
+ case 22: // hmoveto
+ if (this.flexing) {
+ // Add the dy for flex.
+ this.stack.push(0);
+ break;
+ }
+ error = this.executeCommand(1, COMMAND_MAP.hmoveto);
+ break;
+ case 30: // vhcurveto
+ error = this.executeCommand(4, COMMAND_MAP.vhcurveto);
+ break;
+ case 31: // hvcurveto
+ error = this.executeCommand(4, COMMAND_MAP.hvcurveto);
+ break;
+ case (12 << 8) + 0: // dotsection
+ // dotsection is a Type1 command to specify some hinting feature
+ // for dots that do not take a parameter and it can safely be
+ // ignored for Type2.
+ this.stack = [];
+ break;
+ case (12 << 8) + 1: // vstem3
+ if (!HINTING_ENABLED) {
+ this.stack = [];
+ break;
+ }
+ // [vh]stem3 are Type1 only and Type2 supports [vh]stem with
+ // multiple parameters, so instead of returning [vh]stem3 take a
+ // shortcut and return [vhstem] instead.
+ error = this.executeCommand(2, COMMAND_MAP.vstem);
+ break;
+ case (12 << 8) + 2: // hstem3
+ if (!HINTING_ENABLED) {
+ this.stack = [];
+ break;
+ }
+ // See vstem3.
+ error = this.executeCommand(2, COMMAND_MAP.hstem);
+ break;
+ case (12 << 8) + 6: // seac
+ // seac is like type 2's special endchar but it doesn't use the
+ // first argument asb, so remove it.
+ if (SEAC_ANALYSIS_ENABLED) {
+ this.seac = this.stack.splice(-4, 4);
+ error = this.executeCommand(0, COMMAND_MAP.endchar);
+ } else {
+ error = this.executeCommand(4, COMMAND_MAP.endchar);
+ }
+ break;
+ case (12 << 8) + 7: // sbw
+ if (this.stack.length < 4) {
+ error = true;
+ break;
+ }
+ // To convert to type2 we have to move the width value to the
+ // first part of the charstring and then use rmoveto with
+ // (dx, dy). The height argument will not be used for vmtx and
+ // vhea tables reconstruction -- ignoring it.
+ var wy = this.stack.pop();
+ wx = this.stack.pop();
+ var sby = this.stack.pop();
+ sbx = this.stack.pop();
+ this.lsb = sbx;
+ this.width = wx;
+ this.stack.push(wx, sbx, sby);
+ error = this.executeCommand(3, COMMAND_MAP.rmoveto);
+ break;
+ case (12 << 8) + 12: // div
+ if (this.stack.length < 2) {
+ error = true;
+ break;
+ }
+ var num2 = this.stack.pop();
+ var num1 = this.stack.pop();
+ this.stack.push(num1 / num2);
+ break;
+ case (12 << 8) + 16: // callothersubr
+ if (this.stack.length < 2) {
+ error = true;
+ break;
+ }
+ subrNumber = this.stack.pop();
+ var numArgs = this.stack.pop();
+ if (subrNumber === 0 && numArgs === 3) {
+ var flexArgs = this.stack.splice(this.stack.length - 17, 17);
+ this.stack.push(
+ flexArgs[2] + flexArgs[0], // bcp1x + rpx
+ flexArgs[3] + flexArgs[1], // bcp1y + rpy
+ flexArgs[4], // bcp2x
+ flexArgs[5], // bcp2y
+ flexArgs[6], // p2x
+ flexArgs[7], // p2y
+ flexArgs[8], // bcp3x
+ flexArgs[9], // bcp3y
+ flexArgs[10], // bcp4x
+ flexArgs[11], // bcp4y
+ flexArgs[12], // p3x
+ flexArgs[13], // p3y
+ flexArgs[14] // flexDepth
+ // 15 = finalx unused by flex
+ // 16 = finaly unused by flex
+ );
+ error = this.executeCommand(13, COMMAND_MAP.flex, true);
+ this.flexing = false;
+ this.stack.push(flexArgs[15], flexArgs[16]);
+ } else if (subrNumber === 1 && numArgs === 0) {
+ this.flexing = true;
+ }
+ break;
+ case (12 << 8) + 17: // pop
+ // Ignore this since it is only used with othersubr.
+ break;
+ case (12 << 8) + 33: // setcurrentpoint
+ // Ignore for now.
+ this.stack = [];
+ break;
+ default:
+ warn('Unknown type 1 charstring command of "' + value + '"');
+ break;
+ }
+ if (error) {
+ break;
+ }
+ continue;
+ } else if (value <= 246) {
+ value = value - 139;
+ } else if (value <= 250) {
+ value = ((value - 247) * 256) + encoded[++i] + 108;
+ } else if (value <= 254) {
+ value = -((value - 251) * 256) - encoded[++i] - 108;
+ } else {
+ value = (encoded[++i] & 0xff) << 24 | (encoded[++i] & 0xff) << 16 |
+ (encoded[++i] & 0xff) << 8 | (encoded[++i] & 0xff) << 0;
+ }
+ this.stack.push(value);
+ }
+ return error;
+ },
+
+ executeCommand: function(howManyArgs, command, keepStack) {
+ var stackLength = this.stack.length;
+ if (howManyArgs > stackLength) {
+ return true;
+ }
+ var start = stackLength - howManyArgs;
+ for (var i = start; i < stackLength; i++) {
+ var value = this.stack[i];
+ if (value === (value | 0)) { // int
+ this.output.push(28, (value >> 8) & 0xff, value & 0xff);
+ } else { // fixed point
+ value = (65536 * value) | 0;
+ this.output.push(255,
+ (value >> 24) & 0xFF,
+ (value >> 16) & 0xFF,
+ (value >> 8) & 0xFF,
+ value & 0xFF);
+ }
+ }
+ this.output.push.apply(this.output, command);
+ if (keepStack) {
+ this.stack.splice(start, howManyArgs);
+ } else {
+ this.stack.length = 0;
+ }
+ return false;
+ }
+ };
+
+ return Type1CharString;
+})();
+
+/*
+ * Type1Parser encapsulate the needed code for parsing a Type1 font
+ * program. Some of its logic depends on the Type2 charstrings
+ * structure.
+ * Note: this doesn't really parse the font since that would require evaluation
+ * of PostScript, but it is possible in most cases to extract what we need
+ * without a full parse.
+ */
+var Type1Parser = (function Type1ParserClosure() {
+ /*
+ * Decrypt a Sequence of Ciphertext Bytes to Produce the Original Sequence
+ * of Plaintext Bytes. The function took a key as a parameter which can be
+ * for decrypting the eexec block of for decoding charStrings.
+ */
+ var EEXEC_ENCRYPT_KEY = 55665;
+ var CHAR_STRS_ENCRYPT_KEY = 4330;
+
+ function isHexDigit(code) {
+ return code >= 48 && code <= 57 || // '0'-'9'
+ code >= 65 && code <= 70 || // 'A'-'F'
+ code >= 97 && code <= 102; // 'a'-'f'
+ }
+
+ function decrypt(data, key, discardNumber) {
+ var r = key | 0, c1 = 52845, c2 = 22719;
+ var count = data.length;
+ var decrypted = new Uint8Array(count);
+ for (var i = 0; i < count; i++) {
+ var value = data[i];
+ decrypted[i] = value ^ (r >> 8);
+ r = ((value + r) * c1 + c2) & ((1 << 16) - 1);
+ }
+ return Array.prototype.slice.call(decrypted, discardNumber);
+ }
+
+ function decryptAscii(data, key, discardNumber) {
+ var r = key | 0, c1 = 52845, c2 = 22719;
+ var count = data.length, maybeLength = count >>> 1;
+ var decrypted = new Uint8Array(maybeLength);
+ var i, j;
+ for (i = 0, j = 0; i < count; i++) {
+ var digit1 = data[i];
+ if (!isHexDigit(digit1)) {
+ continue;
+ }
+ i++;
+ var digit2;
+ while (i < count && !isHexDigit(digit2 = data[i])) {
+ i++;
+ }
+ if (i < count) {
+ var value = parseInt(String.fromCharCode(digit1, digit2), 16);
+ decrypted[j++] = value ^ (r >> 8);
+ r = ((value + r) * c1 + c2) & ((1 << 16) - 1);
+ }
+ }
+ return Array.prototype.slice.call(decrypted, discardNumber, j);
+ }
+
+ function isSpecial(c) {
+ return c === 0x2F || // '/'
+ c === 0x5B || c === 0x5D || // '[', ']'
+ c === 0x7B || c === 0x7D || // '{', '}'
+ c === 0x28 || c === 0x29; // '(', ')'
+ }
+
+ function Type1Parser(stream, encrypted) {
+ if (encrypted) {
+ var data = stream.getBytes();
+ var isBinary = !(isHexDigit(data[0]) && isHexDigit(data[1]) &&
+ isHexDigit(data[2]) && isHexDigit(data[3]));
+ stream = new Stream(isBinary ? decrypt(data, EEXEC_ENCRYPT_KEY, 4) :
+ decryptAscii(data, EEXEC_ENCRYPT_KEY, 4));
+ }
+ this.stream = stream;
+ this.nextChar();
+ }
+
+ Type1Parser.prototype = {
+ readNumberArray: function Type1Parser_readNumberArray() {
+ this.getToken(); // read '[' or '{' (arrays can start with either)
+ var array = [];
+ while (true) {
+ var token = this.getToken();
+ if (token === null || token === ']' || token === '}') {
+ break;
+ }
+ array.push(parseFloat(token || 0));
+ }
+ return array;
+ },
+
+ readNumber: function Type1Parser_readNumber() {
+ var token = this.getToken();
+ return parseFloat(token || 0);
+ },
+
+ readInt: function Type1Parser_readInt() {
+ // Use '| 0' to prevent setting a double into length such as the double
+ // does not flow into the loop variable.
+ var token = this.getToken();
+ return parseInt(token || 0, 10) | 0;
+ },
+
+ readBoolean: function Type1Parser_readBoolean() {
+ var token = this.getToken();
+
+ // Use 1 and 0 since that's what type2 charstrings use.
+ return token === 'true' ? 1 : 0;
+ },
+
+ nextChar : function Type1_nextChar() {
+ return (this.currentChar = this.stream.getByte());
+ },
+
+ getToken: function Type1Parser_getToken() {
+ // Eat whitespace and comments.
+ var comment = false;
+ var ch = this.currentChar;
+ while (true) {
+ if (ch === -1) {
+ return null;
+ }
+
+ if (comment) {
+ if (ch === 0x0A || ch === 0x0D) {
+ comment = false;
+ }
+ } else if (ch === 0x25) { // '%'
+ comment = true;
+ } else if (!Lexer.isSpace(ch)) {
+ break;
+ }
+ ch = this.nextChar();
+ }
+ if (isSpecial(ch)) {
+ this.nextChar();
+ return String.fromCharCode(ch);
+ }
+ var token = '';
+ do {
+ token += String.fromCharCode(ch);
+ ch = this.nextChar();
+ } while (ch >= 0 && !Lexer.isSpace(ch) && !isSpecial(ch));
+ return token;
+ },
+
+ /*
+ * Returns an object containing a Subrs array and a CharStrings
+ * array extracted from and eexec encrypted block of data
+ */
+ extractFontProgram: function Type1Parser_extractFontProgram() {
+ var stream = this.stream;
+
+ var subrs = [], charstrings = [];
+ var program = {
+ subrs: [],
+ charstrings: [],
+ properties: {
+ 'privateData': {
+ 'lenIV': 4
+ }
+ }
+ };
+ var token, length, data, lenIV, encoded;
+ while ((token = this.getToken()) !== null) {
+ if (token !== '/') {
+ continue;
+ }
+ token = this.getToken();
+ switch (token) {
+ case 'CharStrings':
+ // The number immediately following CharStrings must be greater or
+ // equal to the number of CharStrings.
+ this.getToken();
+ this.getToken(); // read in 'dict'
+ this.getToken(); // read in 'dup'
+ this.getToken(); // read in 'begin'
+ while(true) {
+ token = this.getToken();
+ if (token === null || token === 'end') {
+ break;
+ }
+
+ if (token !== '/') {
+ continue;
+ }
+ var glyph = this.getToken();
+ length = this.readInt();
+ this.getToken(); // read in 'RD' or '-|'
+ data = stream.makeSubStream(stream.pos, length);
+ lenIV = program.properties.privateData['lenIV'];
+ encoded = decrypt(data.getBytes(), CHAR_STRS_ENCRYPT_KEY, lenIV);
+ // Skip past the required space and binary data.
+ stream.skip(length);
+ this.nextChar();
+ token = this.getToken(); // read in 'ND' or '|-'
+ if (token === 'noaccess') {
+ this.getToken(); // read in 'def'
+ }
+ charstrings.push({
+ glyph: glyph,
+ encoded: encoded
+ });
+ }
+ break;
+ case 'Subrs':
+ var num = this.readInt();
+ this.getToken(); // read in 'array'
+ while ((token = this.getToken()) === 'dup') {
+ var index = this.readInt();
+ length = this.readInt();
+ this.getToken(); // read in 'RD' or '-|'
+ data = stream.makeSubStream(stream.pos, length);
+ lenIV = program.properties.privateData['lenIV'];
+ encoded = decrypt(data.getBytes(), CHAR_STRS_ENCRYPT_KEY, lenIV);
+ // Skip past the required space and binary data.
+ stream.skip(length);
+ this.nextChar();
+ token = this.getToken(); // read in 'NP' or '|'
+ if (token === 'noaccess') {
+ this.getToken(); // read in 'put'
+ }
+ subrs[index] = encoded;
+ }
+ break;
+ case 'BlueValues':
+ case 'OtherBlues':
+ case 'FamilyBlues':
+ case 'FamilyOtherBlues':
+ var blueArray = this.readNumberArray();
+ // *Blue* values may contain invalid data: disables reading of
+ // those values when hinting is disabled.
+ if (blueArray.length > 0 && (blueArray.length % 2) === 0 &&
+ HINTING_ENABLED) {
+ program.properties.privateData[token] = blueArray;
+ }
+ break;
+ case 'StemSnapH':
+ case 'StemSnapV':
+ program.properties.privateData[token] = this.readNumberArray();
+ break;
+ case 'StdHW':
+ case 'StdVW':
+ program.properties.privateData[token] =
+ this.readNumberArray()[0];
+ break;
+ case 'BlueShift':
+ case 'lenIV':
+ case 'BlueFuzz':
+ case 'BlueScale':
+ case 'LanguageGroup':
+ case 'ExpansionFactor':
+ program.properties.privateData[token] = this.readNumber();
+ break;
+ case 'ForceBold':
+ program.properties.privateData[token] = this.readBoolean();
+ break;
+ }
+ }
+
+ for (var i = 0; i < charstrings.length; i++) {
+ glyph = charstrings[i].glyph;
+ encoded = charstrings[i].encoded;
+ var charString = new Type1CharString();
+ var error = charString.convert(encoded, subrs);
+ var output = charString.output;
+ if (error) {
+ // It seems when FreeType encounters an error while evaluating a glyph
+ // that it completely ignores the glyph so we'll mimic that behaviour
+ // here and put an endchar to make the validator happy.
+ output = [14];
+ }
+ program.charstrings.push({
+ glyphName: glyph,
+ charstring: output,
+ width: charString.width,
+ lsb: charString.lsb,
+ seac: charString.seac
+ });
+ }
+
+ return program;
+ },
+
+ extractFontHeader: function Type1Parser_extractFontHeader(properties) {
+ var token;
+ while ((token = this.getToken()) !== null) {
+ if (token !== '/') {
+ continue;
+ }
+ token = this.getToken();
+ switch (token) {
+ case 'FontMatrix':
+ var matrix = this.readNumberArray();
+ properties.fontMatrix = matrix;
+ break;
+ case 'Encoding':
+ var encodingArg = this.getToken();
+ var encoding;
+ if (!/^\d+$/.test(encodingArg)) {
+ // encoding name is specified
+ encoding = Encodings[encodingArg];
+ } else {
+ encoding = [];
+ var size = parseInt(encodingArg, 10) | 0;
+ this.getToken(); // read in 'array'
+
+ for (var j = 0; j < size; j++) {
+ token = this.getToken();
+ // skipping till first dup or def (e.g. ignoring for statement)
+ while (token !== 'dup' && token !== 'def') {
+ token = this.getToken();
+ if (token === null) {
+ return; // invalid header
+ }
+ }
+ if (token === 'def') {
+ break; // read all array data
+ }
+ var index = this.readInt();
+ this.getToken(); // read in '/'
+ var glyph = this.getToken();
+ encoding[index] = glyph;
+ this.getToken(); // read the in 'put'
+ }
+ }
+ properties.builtInEncoding = encoding;
+ break;
+ case 'FontBBox':
+ var fontBBox = this.readNumberArray();
+ // adjusting ascent/descent
+ properties.ascent = fontBBox[3];
+ properties.descent = fontBBox[1];
+ properties.ascentScaled = true;
+ break;
+ }
+ }
+ }
+ };
+
+ return Type1Parser;
+})();
+
+/**
+ * The CFF class takes a Type1 file and wrap it into a
+ * 'Compact Font Format' which itself embed Type2 charstrings.
+ */
+var CFFStandardStrings = [
+ '.notdef', 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', 'percent',
+ 'ampersand', 'quoteright', 'parenleft', 'parenright', 'asterisk', 'plus',
+ 'comma', 'hyphen', 'period', 'slash', 'zero', 'one', 'two', 'three', 'four',
+ 'five', 'six', 'seven', 'eight', 'nine', 'colon', 'semicolon', 'less',
+ 'equal', 'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
+ 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
+ 'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright', 'asciicircum',
+ 'underscore', 'quoteleft', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
+ 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y',
+ 'z', 'braceleft', 'bar', 'braceright', 'asciitilde', 'exclamdown', 'cent',
+ 'sterling', 'fraction', 'yen', 'florin', 'section', 'currency',
+ 'quotesingle', 'quotedblleft', 'guillemotleft', 'guilsinglleft',
+ 'guilsinglright', 'fi', 'fl', 'endash', 'dagger', 'daggerdbl',
+ 'periodcentered', 'paragraph', 'bullet', 'quotesinglbase', 'quotedblbase',
+ 'quotedblright', 'guillemotright', 'ellipsis', 'perthousand', 'questiondown',
+ 'grave', 'acute', 'circumflex', 'tilde', 'macron', 'breve', 'dotaccent',
+ 'dieresis', 'ring', 'cedilla', 'hungarumlaut', 'ogonek', 'caron', 'emdash',
+ 'AE', 'ordfeminine', 'Lslash', 'Oslash', 'OE', 'ordmasculine', 'ae',
+ 'dotlessi', 'lslash', 'oslash', 'oe', 'germandbls', 'onesuperior',
+ 'logicalnot', 'mu', 'trademark', 'Eth', 'onehalf', 'plusminus', 'Thorn',
+ 'onequarter', 'divide', 'brokenbar', 'degree', 'thorn', 'threequarters',
+ 'twosuperior', 'registered', 'minus', 'eth', 'multiply', 'threesuperior',
+ 'copyright', 'Aacute', 'Acircumflex', 'Adieresis', 'Agrave', 'Aring',
+ 'Atilde', 'Ccedilla', 'Eacute', 'Ecircumflex', 'Edieresis', 'Egrave',
+ 'Iacute', 'Icircumflex', 'Idieresis', 'Igrave', 'Ntilde', 'Oacute',
+ 'Ocircumflex', 'Odieresis', 'Ograve', 'Otilde', 'Scaron', 'Uacute',
+ 'Ucircumflex', 'Udieresis', 'Ugrave', 'Yacute', 'Ydieresis', 'Zcaron',
+ 'aacute', 'acircumflex', 'adieresis', 'agrave', 'aring', 'atilde',
+ 'ccedilla', 'eacute', 'ecircumflex', 'edieresis', 'egrave', 'iacute',
+ 'icircumflex', 'idieresis', 'igrave', 'ntilde', 'oacute', 'ocircumflex',
+ 'odieresis', 'ograve', 'otilde', 'scaron', 'uacute', 'ucircumflex',
+ 'udieresis', 'ugrave', 'yacute', 'ydieresis', 'zcaron', 'exclamsmall',
+ 'Hungarumlautsmall', 'dollaroldstyle', 'dollarsuperior', 'ampersandsmall',
+ 'Acutesmall', 'parenleftsuperior', 'parenrightsuperior', 'twodotenleader',
+ 'onedotenleader', 'zerooldstyle', 'oneoldstyle', 'twooldstyle',
+ 'threeoldstyle', 'fouroldstyle', 'fiveoldstyle', 'sixoldstyle',
+ 'sevenoldstyle', 'eightoldstyle', 'nineoldstyle', 'commasuperior',
+ 'threequartersemdash', 'periodsuperior', 'questionsmall', 'asuperior',
+ 'bsuperior', 'centsuperior', 'dsuperior', 'esuperior', 'isuperior',
+ 'lsuperior', 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior',
+ 'tsuperior', 'ff', 'ffi', 'ffl', 'parenleftinferior', 'parenrightinferior',
+ 'Circumflexsmall', 'hyphensuperior', 'Gravesmall', 'Asmall', 'Bsmall',
+ 'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall', 'Hsmall', 'Ismall',
+ 'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall', 'Osmall', 'Psmall',
+ 'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall', 'Vsmall', 'Wsmall',
+ 'Xsmall', 'Ysmall', 'Zsmall', 'colonmonetary', 'onefitted', 'rupiah',
+ 'Tildesmall', 'exclamdownsmall', 'centoldstyle', 'Lslashsmall',
+ 'Scaronsmall', 'Zcaronsmall', 'Dieresissmall', 'Brevesmall', 'Caronsmall',
+ 'Dotaccentsmall', 'Macronsmall', 'figuredash', 'hypheninferior',
+ 'Ogoneksmall', 'Ringsmall', 'Cedillasmall', 'questiondownsmall', 'oneeighth',
+ 'threeeighths', 'fiveeighths', 'seveneighths', 'onethird', 'twothirds',
+ 'zerosuperior', 'foursuperior', 'fivesuperior', 'sixsuperior',
+ 'sevensuperior', 'eightsuperior', 'ninesuperior', 'zeroinferior',
+ 'oneinferior', 'twoinferior', 'threeinferior', 'fourinferior',
+ 'fiveinferior', 'sixinferior', 'seveninferior', 'eightinferior',
+ 'nineinferior', 'centinferior', 'dollarinferior', 'periodinferior',
+ 'commainferior', 'Agravesmall', 'Aacutesmall', 'Acircumflexsmall',
+ 'Atildesmall', 'Adieresissmall', 'Aringsmall', 'AEsmall', 'Ccedillasmall',
+ 'Egravesmall', 'Eacutesmall', 'Ecircumflexsmall', 'Edieresissmall',
+ 'Igravesmall', 'Iacutesmall', 'Icircumflexsmall', 'Idieresissmall',
+ 'Ethsmall', 'Ntildesmall', 'Ogravesmall', 'Oacutesmall', 'Ocircumflexsmall',
+ 'Otildesmall', 'Odieresissmall', 'OEsmall', 'Oslashsmall', 'Ugravesmall',
+ 'Uacutesmall', 'Ucircumflexsmall', 'Udieresissmall', 'Yacutesmall',
+ 'Thornsmall', 'Ydieresissmall', '001.000', '001.001', '001.002', '001.003',
+ 'Black', 'Bold', 'Book', 'Light', 'Medium', 'Regular', 'Roman', 'Semibold'
+];
+
+// Type1Font is also a CIDFontType0.
+var Type1Font = function Type1Font(name, file, properties) {
+ // Some bad generators embed pfb file as is, we have to strip 6-byte headers.
+ // Also, length1 and length2 might be off by 6 bytes as well.
+ // http://www.math.ubc.ca/~cass/piscript/type1.pdf
+ var PFB_HEADER_SIZE = 6;
+ var headerBlockLength = properties.length1;
+ var eexecBlockLength = properties.length2;
+ var pfbHeader = file.peekBytes(PFB_HEADER_SIZE);
+ var pfbHeaderPresent = pfbHeader[0] === 0x80 && pfbHeader[1] === 0x01;
+ if (pfbHeaderPresent) {
+ file.skip(PFB_HEADER_SIZE);
+ headerBlockLength = (pfbHeader[5] << 24) | (pfbHeader[4] << 16) |
+ (pfbHeader[3] << 8) | pfbHeader[2];
+ }
+
+ // Get the data block containing glyphs and subrs informations
+ var headerBlock = new Stream(file.getBytes(headerBlockLength));
+ var headerBlockParser = new Type1Parser(headerBlock);
+ headerBlockParser.extractFontHeader(properties);
+
+ if (pfbHeaderPresent) {
+ pfbHeader = file.getBytes(PFB_HEADER_SIZE);
+ eexecBlockLength = (pfbHeader[5] << 24) | (pfbHeader[4] << 16) |
+ (pfbHeader[3] << 8) | pfbHeader[2];
+ }
+
+ // Decrypt the data blocks and retrieve it's content
+ var eexecBlock = new Stream(file.getBytes(eexecBlockLength));
+ var eexecBlockParser = new Type1Parser(eexecBlock, true);
+ var data = eexecBlockParser.extractFontProgram();
+ for (var info in data.properties) {
+ properties[info] = data.properties[info];
+ }
+
+ var charstrings = data.charstrings;
+ var type2Charstrings = this.getType2Charstrings(charstrings);
+ var subrs = this.getType2Subrs(data.subrs);
+
+ this.charstrings = charstrings;
+ this.data = this.wrap(name, type2Charstrings, this.charstrings,
+ subrs, properties);
+ this.seacs = this.getSeacs(data.charstrings);
+};
+
+Type1Font.prototype = {
+ get numGlyphs() {
+ return this.charstrings.length + 1;
+ },
+
+ getCharset: function Type1Font_getCharset() {
+ var charset = ['.notdef'];
+ var charstrings = this.charstrings;
+ for (var glyphId = 0; glyphId < charstrings.length; glyphId++) {
+ charset.push(charstrings[glyphId].glyphName);
+ }
+ return charset;
+ },
+
+ getGlyphMapping: function Type1Font_getGlyphMapping(properties) {
+ var charstrings = this.charstrings;
+ var glyphNames = ['.notdef'], glyphId;
+ for (glyphId = 0; glyphId < charstrings.length; glyphId++) {
+ glyphNames.push(charstrings[glyphId].glyphName);
+ }
+ var encoding = properties.builtInEncoding;
+ if (encoding) {
+ var builtInEncoding = {};
+ for (var charCode in encoding) {
+ glyphId = glyphNames.indexOf(encoding[charCode]);
+ if (glyphId >= 0) {
+ builtInEncoding[charCode] = glyphId;
+ }
+ }
+ }
+
+ return type1FontGlyphMapping(properties, builtInEncoding, glyphNames);
+ },
+
+ getSeacs: function Type1Font_getSeacs(charstrings) {
+ var i, ii;
+ var seacMap = [];
+ for (i = 0, ii = charstrings.length; i < ii; i++) {
+ var charstring = charstrings[i];
+ if (charstring.seac) {
+ // Offset by 1 for .notdef
+ seacMap[i + 1] = charstring.seac;
+ }
+ }
+ return seacMap;
+ },
+
+ getType2Charstrings: function Type1Font_getType2Charstrings(
+ type1Charstrings) {
+ var type2Charstrings = [];
+ for (var i = 0, ii = type1Charstrings.length; i < ii; i++) {
+ type2Charstrings.push(type1Charstrings[i].charstring);
+ }
+ return type2Charstrings;
+ },
+
+ getType2Subrs: function Type1Font_getType2Subrs(type1Subrs) {
+ var bias = 0;
+ var count = type1Subrs.length;
+ if (count < 1133) {
+ bias = 107;
+ } else if (count < 33769) {
+ bias = 1131;
+ } else {
+ bias = 32768;
+ }
+
+ // Add a bunch of empty subrs to deal with the Type2 bias
+ var type2Subrs = [];
+ var i;
+ for (i = 0; i < bias; i++) {
+ type2Subrs.push([0x0B]);
+ }
+
+ for (i = 0; i < count; i++) {
+ type2Subrs.push(type1Subrs[i]);
+ }
+
+ return type2Subrs;
+ },
+
+ wrap: function Type1Font_wrap(name, glyphs, charstrings, subrs, properties) {
+ var cff = new CFF();
+ cff.header = new CFFHeader(1, 0, 4, 4);
+
+ cff.names = [name];
+
+ var topDict = new CFFTopDict();
+ // CFF strings IDs 0...390 are predefined names, so refering
+ // to entries in our own String INDEX starts at SID 391.
+ topDict.setByName('version', 391);
+ topDict.setByName('Notice', 392);
+ topDict.setByName('FullName', 393);
+ topDict.setByName('FamilyName', 394);
+ topDict.setByName('Weight', 395);
+ topDict.setByName('Encoding', null); // placeholder
+ topDict.setByName('FontMatrix', properties.fontMatrix);
+ topDict.setByName('FontBBox', properties.bbox);
+ topDict.setByName('charset', null); // placeholder
+ topDict.setByName('CharStrings', null); // placeholder
+ topDict.setByName('Private', null); // placeholder
+ cff.topDict = topDict;
+
+ var strings = new CFFStrings();
+ strings.add('Version 0.11'); // Version
+ strings.add('See original notice'); // Notice
+ strings.add(name); // FullName
+ strings.add(name); // FamilyName
+ strings.add('Medium'); // Weight
+ cff.strings = strings;
+
+ cff.globalSubrIndex = new CFFIndex();
+
+ var count = glyphs.length;
+ var charsetArray = [0];
+ var i, ii;
+ for (i = 0; i < count; i++) {
+ var index = CFFStandardStrings.indexOf(charstrings[i].glyphName);
+ // TODO: Insert the string and correctly map it. Previously it was
+ // thought mapping names that aren't in the standard strings to .notdef
+ // was fine, however in issue818 when mapping them all to .notdef the
+ // adieresis glyph no longer worked.
+ if (index === -1) {
+ index = 0;
+ }
+ charsetArray.push((index >> 8) & 0xff, index & 0xff);
+ }
+ cff.charset = new CFFCharset(false, 0, [], charsetArray);
+
+ var charStringsIndex = new CFFIndex();
+ charStringsIndex.add([0x8B, 0x0E]); // .notdef
+ for (i = 0; i < count; i++) {
+ charStringsIndex.add(glyphs[i]);
+ }
+ cff.charStrings = charStringsIndex;
+
+ var privateDict = new CFFPrivateDict();
+ privateDict.setByName('Subrs', null); // placeholder
+ var fields = [
+ 'BlueValues',
+ 'OtherBlues',
+ 'FamilyBlues',
+ 'FamilyOtherBlues',
+ 'StemSnapH',
+ 'StemSnapV',
+ 'BlueShift',
+ 'BlueFuzz',
+ 'BlueScale',
+ 'LanguageGroup',
+ 'ExpansionFactor',
+ 'ForceBold',
+ 'StdHW',
+ 'StdVW'
+ ];
+ for (i = 0, ii = fields.length; i < ii; i++) {
+ var field = fields[i];
+ if (!properties.privateData.hasOwnProperty(field)) {
+ continue;
+ }
+ var value = properties.privateData[field];
+ if (isArray(value)) {
+ // All of the private dictionary array data in CFF must be stored as
+ // "delta-encoded" numbers.
+ for (var j = value.length - 1; j > 0; j--) {
+ value[j] -= value[j - 1]; // ... difference from previous value
+ }
+ }
+ privateDict.setByName(field, value);
+ }
+ cff.topDict.privateDict = privateDict;
+
+ var subrIndex = new CFFIndex();
+ for (i = 0, ii = subrs.length; i < ii; i++) {
+ subrIndex.add(subrs[i]);
+ }
+ privateDict.subrsIndex = subrIndex;
+
+ var compiler = new CFFCompiler(cff);
+ return compiler.compile();
+ }
+};
+
+var CFFFont = (function CFFFontClosure() {
+ function CFFFont(file, properties) {
+ this.properties = properties;
+
+ var parser = new CFFParser(file, properties);
+ this.cff = parser.parse();
+ var compiler = new CFFCompiler(this.cff);
+ this.seacs = this.cff.seacs;
+ try {
+ this.data = compiler.compile();
+ } catch (e) {
+ warn('Failed to compile font ' + properties.loadedName);
+ // There may have just been an issue with the compiler, set the data
+ // anyway and hope the font loaded.
+ this.data = file;
+ }
+ }
+
+ CFFFont.prototype = {
+ get numGlyphs() {
+ return this.cff.charStrings.count;
+ },
+ getCharset: function CFFFont_getCharset() {
+ return this.cff.charset.charset;
+ },
+ getGlyphMapping: function CFFFont_getGlyphMapping() {
+ var cff = this.cff;
+ var properties = this.properties;
+ var charsets = cff.charset.charset;
+ var charCodeToGlyphId;
+ var glyphId;
+
+ if (properties.composite) {
+ charCodeToGlyphId = Object.create(null);
+ if (cff.isCIDFont) {
+ // If the font is actually a CID font then we should use the charset
+ // to map CIDs to GIDs.
+ for (glyphId = 0; glyphId < charsets.length; glyphId++) {
+ var cid = charsets[glyphId];
+ var charCode = properties.cMap.charCodeOf(cid);
+ charCodeToGlyphId[charCode] = glyphId;
+ }
+ } else {
+ // If it is NOT actually a CID font then CIDs should be mapped
+ // directly to GIDs.
+ for (glyphId = 0; glyphId < cff.charStrings.count; glyphId++) {
+ charCodeToGlyphId[glyphId] = glyphId;
+ }
+ }
+ return charCodeToGlyphId;
+ }
+
+ var encoding = cff.encoding ? cff.encoding.encoding : null;
+ charCodeToGlyphId = type1FontGlyphMapping(properties, encoding, charsets);
+ return charCodeToGlyphId;
+ }
+ };
+
+ return CFFFont;
+})();
+
+var CFFParser = (function CFFParserClosure() {
+ var CharstringValidationData = [
+ null,
+ { id: 'hstem', min: 2, stackClearing: true, stem: true },
+ null,
+ { id: 'vstem', min: 2, stackClearing: true, stem: true },
+ { id: 'vmoveto', min: 1, stackClearing: true },
+ { id: 'rlineto', min: 2, resetStack: true },
+ { id: 'hlineto', min: 1, resetStack: true },
+ { id: 'vlineto', min: 1, resetStack: true },
+ { id: 'rrcurveto', min: 6, resetStack: true },
+ null,
+ { id: 'callsubr', min: 1, undefStack: true },
+ { id: 'return', min: 0, undefStack: true },
+ null, // 12
+ null,
+ { id: 'endchar', min: 0, stackClearing: true },
+ null,
+ null,
+ null,
+ { id: 'hstemhm', min: 2, stackClearing: true, stem: true },
+ { id: 'hintmask', min: 0, stackClearing: true },
+ { id: 'cntrmask', min: 0, stackClearing: true },
+ { id: 'rmoveto', min: 2, stackClearing: true },
+ { id: 'hmoveto', min: 1, stackClearing: true },
+ { id: 'vstemhm', min: 2, stackClearing: true, stem: true },
+ { id: 'rcurveline', min: 8, resetStack: true },
+ { id: 'rlinecurve', min: 8, resetStack: true },
+ { id: 'vvcurveto', min: 4, resetStack: true },
+ { id: 'hhcurveto', min: 4, resetStack: true },
+ null, // shortint
+ { id: 'callgsubr', min: 1, undefStack: true },
+ { id: 'vhcurveto', min: 4, resetStack: true },
+ { id: 'hvcurveto', min: 4, resetStack: true }
+ ];
+ var CharstringValidationData12 = [
+ null,
+ null,
+ null,
+ { id: 'and', min: 2, stackDelta: -1 },
+ { id: 'or', min: 2, stackDelta: -1 },
+ { id: 'not', min: 1, stackDelta: 0 },
+ null,
+ null,
+ null,
+ { id: 'abs', min: 1, stackDelta: 0 },
+ { id: 'add', min: 2, stackDelta: -1,
+ stackFn: function stack_div(stack, index) {
+ stack[index - 2] = stack[index - 2] + stack[index - 1];
+ }
+ },
+ { id: 'sub', min: 2, stackDelta: -1,
+ stackFn: function stack_div(stack, index) {
+ stack[index - 2] = stack[index - 2] - stack[index - 1];
+ }
+ },
+ { id: 'div', min: 2, stackDelta: -1,
+ stackFn: function stack_div(stack, index) {
+ stack[index - 2] = stack[index - 2] / stack[index - 1];
+ }
+ },
+ null,
+ { id: 'neg', min: 1, stackDelta: 0,
+ stackFn: function stack_div(stack, index) {
+ stack[index - 1] = -stack[index - 1];
+ }
+ },
+ { id: 'eq', min: 2, stackDelta: -1 },
+ null,
+ null,
+ { id: 'drop', min: 1, stackDelta: -1 },
+ null,
+ { id: 'put', min: 2, stackDelta: -2 },
+ { id: 'get', min: 1, stackDelta: 0 },
+ { id: 'ifelse', min: 4, stackDelta: -3 },
+ { id: 'random', min: 0, stackDelta: 1 },
+ { id: 'mul', min: 2, stackDelta: -1,
+ stackFn: function stack_div(stack, index) {
+ stack[index - 2] = stack[index - 2] * stack[index - 1];
+ }
+ },
+ null,
+ { id: 'sqrt', min: 1, stackDelta: 0 },
+ { id: 'dup', min: 1, stackDelta: 1 },
+ { id: 'exch', min: 2, stackDelta: 0 },
+ { id: 'index', min: 2, stackDelta: 0 },
+ { id: 'roll', min: 3, stackDelta: -2 },
+ null,
+ null,
+ null,
+ { id: 'hflex', min: 7, resetStack: true },
+ { id: 'flex', min: 13, resetStack: true },
+ { id: 'hflex1', min: 9, resetStack: true },
+ { id: 'flex1', min: 11, resetStack: true }
+ ];
+
+ function CFFParser(file, properties) {
+ this.bytes = file.getBytes();
+ this.properties = properties;
+ }
+ CFFParser.prototype = {
+ parse: function CFFParser_parse() {
+ var properties = this.properties;
+ var cff = new CFF();
+ this.cff = cff;
+
+ // The first five sections must be in order, all the others are reached
+ // via offsets contained in one of the below.
+ var header = this.parseHeader();
+ var nameIndex = this.parseIndex(header.endPos);
+ var topDictIndex = this.parseIndex(nameIndex.endPos);
+ var stringIndex = this.parseIndex(topDictIndex.endPos);
+ var globalSubrIndex = this.parseIndex(stringIndex.endPos);
+
+ var topDictParsed = this.parseDict(topDictIndex.obj.get(0));
+ var topDict = this.createDict(CFFTopDict, topDictParsed, cff.strings);
+
+ cff.header = header.obj;
+ cff.names = this.parseNameIndex(nameIndex.obj);
+ cff.strings = this.parseStringIndex(stringIndex.obj);
+ cff.topDict = topDict;
+ cff.globalSubrIndex = globalSubrIndex.obj;
+
+ this.parsePrivateDict(cff.topDict);
+
+ cff.isCIDFont = topDict.hasName('ROS');
+
+ var charStringOffset = topDict.getByName('CharStrings');
+ var charStringsAndSeacs = this.parseCharStrings(charStringOffset);
+ cff.charStrings = charStringsAndSeacs.charStrings;
+ cff.seacs = charStringsAndSeacs.seacs;
+ cff.widths = charStringsAndSeacs.widths;
+
+ var fontMatrix = topDict.getByName('FontMatrix');
+ if (fontMatrix) {
+ properties.fontMatrix = fontMatrix;
+ }
+
+ var fontBBox = topDict.getByName('FontBBox');
+ if (fontBBox) {
+ // adjusting ascent/descent
+ properties.ascent = fontBBox[3];
+ properties.descent = fontBBox[1];
+ properties.ascentScaled = true;
+ }
+
+ var charset, encoding;
+ if (cff.isCIDFont) {
+ var fdArrayIndex = this.parseIndex(topDict.getByName('FDArray')).obj;
+ for (var i = 0, ii = fdArrayIndex.count; i < ii; ++i) {
+ var dictRaw = fdArrayIndex.get(i);
+ var fontDict = this.createDict(CFFTopDict, this.parseDict(dictRaw),
+ cff.strings);
+ this.parsePrivateDict(fontDict);
+ cff.fdArray.push(fontDict);
+ }
+ // cid fonts don't have an encoding
+ encoding = null;
+ charset = this.parseCharsets(topDict.getByName('charset'),
+ cff.charStrings.count, cff.strings, true);
+ cff.fdSelect = this.parseFDSelect(topDict.getByName('FDSelect'),
+ cff.charStrings.count);
+ } else {
+ charset = this.parseCharsets(topDict.getByName('charset'),
+ cff.charStrings.count, cff.strings, false);
+ encoding = this.parseEncoding(topDict.getByName('Encoding'),
+ properties,
+ cff.strings, charset.charset);
+ }
+ cff.charset = charset;
+ cff.encoding = encoding;
+
+ return cff;
+ },
+ parseHeader: function CFFParser_parseHeader() {
+ var bytes = this.bytes;
+ var bytesLength = bytes.length;
+ var offset = 0;
+
+ // Prevent an infinite loop, by checking that the offset is within the
+ // bounds of the bytes array. Necessary in empty, or invalid, font files.
+ while (offset < bytesLength && bytes[offset] !== 1) {
+ ++offset;
+ }
+ if (offset >= bytesLength) {
+ error('Invalid CFF header');
+ } else if (offset !== 0) {
+ info('cff data is shifted');
+ bytes = bytes.subarray(offset);
+ this.bytes = bytes;
+ }
+ var major = bytes[0];
+ var minor = bytes[1];
+ var hdrSize = bytes[2];
+ var offSize = bytes[3];
+ var header = new CFFHeader(major, minor, hdrSize, offSize);
+ return { obj: header, endPos: hdrSize };
+ },
+ parseDict: function CFFParser_parseDict(dict) {
+ var pos = 0;
+
+ function parseOperand() {
+ var value = dict[pos++];
+ if (value === 30) {
+ return parseFloatOperand(pos);
+ } else if (value === 28) {
+ value = dict[pos++];
+ value = ((value << 24) | (dict[pos++] << 16)) >> 16;
+ return value;
+ } else if (value === 29) {
+ value = dict[pos++];
+ value = (value << 8) | dict[pos++];
+ value = (value << 8) | dict[pos++];
+ value = (value << 8) | dict[pos++];
+ return value;
+ } else if (value >= 32 && value <= 246) {
+ return value - 139;
+ } else if (value >= 247 && value <= 250) {
+ return ((value - 247) * 256) + dict[pos++] + 108;
+ } else if (value >= 251 && value <= 254) {
+ return -((value - 251) * 256) - dict[pos++] - 108;
+ } else {
+ error('255 is not a valid DICT command');
+ }
+ return -1;
+ }
+
+ function parseFloatOperand() {
+ var str = '';
+ var eof = 15;
+ var lookup = ['0', '1', '2', '3', '4', '5', '6', '7', '8',
+ '9', '.', 'E', 'E-', null, '-'];
+ var length = dict.length;
+ while (pos < length) {
+ var b = dict[pos++];
+ var b1 = b >> 4;
+ var b2 = b & 15;
+
+ if (b1 === eof) {
+ break;
+ }
+ str += lookup[b1];
+
+ if (b2 === eof) {
+ break;
+ }
+ str += lookup[b2];
+ }
+ return parseFloat(str);
+ }
+
+ var operands = [];
+ var entries = [];
+
+ pos = 0;
+ var end = dict.length;
+ while (pos < end) {
+ var b = dict[pos];
+ if (b <= 21) {
+ if (b === 12) {
+ b = (b << 8) | dict[++pos];
+ }
+ entries.push([b, operands]);
+ operands = [];
+ ++pos;
+ } else {
+ operands.push(parseOperand());
+ }
+ }
+ return entries;
+ },
+ parseIndex: function CFFParser_parseIndex(pos) {
+ var cffIndex = new CFFIndex();
+ var bytes = this.bytes;
+ var count = (bytes[pos++] << 8) | bytes[pos++];
+ var offsets = [];
+ var end = pos;
+ var i, ii;
+
+ if (count !== 0) {
+ var offsetSize = bytes[pos++];
+ // add 1 for offset to determine size of last object
+ var startPos = pos + ((count + 1) * offsetSize) - 1;
+
+ for (i = 0, ii = count + 1; i < ii; ++i) {
+ var offset = 0;
+ for (var j = 0; j < offsetSize; ++j) {
+ offset <<= 8;
+ offset += bytes[pos++];
+ }
+ offsets.push(startPos + offset);
+ }
+ end = offsets[count];
+ }
+ for (i = 0, ii = offsets.length - 1; i < ii; ++i) {
+ var offsetStart = offsets[i];
+ var offsetEnd = offsets[i + 1];
+ cffIndex.add(bytes.subarray(offsetStart, offsetEnd));
+ }
+ return {obj: cffIndex, endPos: end};
+ },
+ parseNameIndex: function CFFParser_parseNameIndex(index) {
+ var names = [];
+ for (var i = 0, ii = index.count; i < ii; ++i) {
+ var name = index.get(i);
+ // OTS doesn't allow names to be over 127 characters.
+ var length = Math.min(name.length, 127);
+ var data = [];
+ // OTS also only permits certain characters in the name.
+ for (var j = 0; j < length; ++j) {
+ var c = name[j];
+ if (j === 0 && c === 0) {
+ data[j] = c;
+ continue;
+ }
+ if ((c < 33 || c > 126) || c === 91 /* [ */ || c === 93 /* ] */ ||
+ c === 40 /* ( */ || c === 41 /* ) */ || c === 123 /* { */ ||
+ c === 125 /* } */ || c === 60 /* < */ || c === 62 /* > */ ||
+ c === 47 /* / */ || c === 37 /* % */ || c === 35 /* # */) {
+ data[j] = 95;
+ continue;
+ }
+ data[j] = c;
+ }
+ names.push(bytesToString(data));
+ }
+ return names;
+ },
+ parseStringIndex: function CFFParser_parseStringIndex(index) {
+ var strings = new CFFStrings();
+ for (var i = 0, ii = index.count; i < ii; ++i) {
+ var data = index.get(i);
+ strings.add(bytesToString(data));
+ }
+ return strings;
+ },
+ createDict: function CFFParser_createDict(Type, dict, strings) {
+ var cffDict = new Type(strings);
+ for (var i = 0, ii = dict.length; i < ii; ++i) {
+ var pair = dict[i];
+ var key = pair[0];
+ var value = pair[1];
+ cffDict.setByKey(key, value);
+ }
+ return cffDict;
+ },
+ parseCharStrings: function CFFParser_parseCharStrings(charStringOffset) {
+ var charStrings = this.parseIndex(charStringOffset).obj;
+ var seacs = [];
+ var widths = [];
+ var count = charStrings.count;
+ for (var i = 0; i < count; i++) {
+ var charstring = charStrings.get(i);
+
+ var stackSize = 0;
+ var stack = [];
+ var undefStack = true;
+ var hints = 0;
+ var valid = true;
+ var data = charstring;
+ var length = data.length;
+ var firstStackClearing = true;
+ for (var j = 0; j < length;) {
+ var value = data[j++];
+ var validationCommand = null;
+ if (value === 12) {
+ var q = data[j++];
+ if (q === 0) {
+ // The CFF specification state that the 'dotsection' command
+ // (12, 0) is deprecated and treated as a no-op, but all Type2
+ // charstrings processors should support them. Unfortunately
+ // the font sanitizer don't. As a workaround the sequence (12, 0)
+ // is replaced by a useless (0, hmoveto).
+ data[j - 2] = 139;
+ data[j - 1] = 22;
+ stackSize = 0;
+ } else {
+ validationCommand = CharstringValidationData12[q];
+ }
+ } else if (value === 28) { // number (16 bit)
+ stack[stackSize] = ((data[j] << 24) | (data[j + 1] << 16)) >> 16;
+ j += 2;
+ stackSize++;
+ } else if (value === 14) {
+ if (stackSize >= 4) {
+ stackSize -= 4;
+ if (SEAC_ANALYSIS_ENABLED) {
+ seacs[i] = stack.slice(stackSize, stackSize + 4);
+ valid = false;
+ }
+ }
+ validationCommand = CharstringValidationData[value];
+ } else if (value >= 32 && value <= 246) { // number
+ stack[stackSize] = value - 139;
+ stackSize++;
+ } else if (value >= 247 && value <= 254) { // number (+1 bytes)
+ stack[stackSize] = (value < 251 ?
+ ((value - 247) << 8) + data[j] + 108 :
+ -((value - 251) << 8) - data[j] - 108);
+ j++;
+ stackSize++;
+ } else if (value === 255) { // number (32 bit)
+ stack[stackSize] = ((data[j] << 24) | (data[j + 1] << 16) |
+ (data[j + 2] << 8) | data[j + 3]) / 65536;
+ j += 4;
+ stackSize++;
+ } else if (value === 19 || value === 20) {
+ hints += stackSize >> 1;
+ j += (hints + 7) >> 3; // skipping right amount of hints flag data
+ stackSize %= 2;
+ validationCommand = CharstringValidationData[value];
+ } else {
+ validationCommand = CharstringValidationData[value];
+ }
+ if (validationCommand) {
+ if (validationCommand.stem) {
+ hints += stackSize >> 1;
+ }
+ if ('min' in validationCommand) {
+ if (!undefStack && stackSize < validationCommand.min) {
+ warn('Not enough parameters for ' + validationCommand.id +
+ '; actual: ' + stackSize +
+ ', expected: ' + validationCommand.min);
+ valid = false;
+ break;
+ }
+ }
+ if (firstStackClearing && validationCommand.stackClearing) {
+ firstStackClearing = false;
+ // the optional character width can be found before the first
+ // stack-clearing command arguments
+ stackSize -= validationCommand.min;
+ if (stackSize >= 2 && validationCommand.stem) {
+ // there are even amount of arguments for stem commands
+ stackSize %= 2;
+ } else if (stackSize > 1) {
+ warn('Found too many parameters for stack-clearing command');
+ }
+ if (stackSize > 0 && stack[stackSize - 1] >= 0) {
+ widths[i] = stack[stackSize - 1];
+ }
+ }
+ if ('stackDelta' in validationCommand) {
+ if ('stackFn' in validationCommand) {
+ validationCommand.stackFn(stack, stackSize);
+ }
+ stackSize += validationCommand.stackDelta;
+ } else if (validationCommand.stackClearing) {
+ stackSize = 0;
+ } else if (validationCommand.resetStack) {
+ stackSize = 0;
+ undefStack = false;
+ } else if (validationCommand.undefStack) {
+ stackSize = 0;
+ undefStack = true;
+ firstStackClearing = false;
+ }
+ }
+ }
+ if (!valid) {
+ // resetting invalid charstring to single 'endchar'
+ charStrings.set(i, new Uint8Array([14]));
+ }
+ }
+ return { charStrings: charStrings, seacs: seacs, widths: widths };
+ },
+ emptyPrivateDictionary:
+ function CFFParser_emptyPrivateDictionary(parentDict) {
+ var privateDict = this.createDict(CFFPrivateDict, [],
+ parentDict.strings);
+ parentDict.setByKey(18, [0, 0]);
+ parentDict.privateDict = privateDict;
+ },
+ parsePrivateDict: function CFFParser_parsePrivateDict(parentDict) {
+ // no private dict, do nothing
+ if (!parentDict.hasName('Private')) {
+ this.emptyPrivateDictionary(parentDict);
+ return;
+ }
+ var privateOffset = parentDict.getByName('Private');
+ // make sure the params are formatted correctly
+ if (!isArray(privateOffset) || privateOffset.length !== 2) {
+ parentDict.removeByName('Private');
+ return;
+ }
+ var size = privateOffset[0];
+ var offset = privateOffset[1];
+ // remove empty dicts or ones that refer to invalid location
+ if (size === 0 || offset >= this.bytes.length) {
+ this.emptyPrivateDictionary(parentDict);
+ return;
+ }
+
+ var privateDictEnd = offset + size;
+ var dictData = this.bytes.subarray(offset, privateDictEnd);
+ var dict = this.parseDict(dictData);
+ var privateDict = this.createDict(CFFPrivateDict, dict,
+ parentDict.strings);
+ parentDict.privateDict = privateDict;
+
+ // Parse the Subrs index also since it's relative to the private dict.
+ if (!privateDict.getByName('Subrs')) {
+ return;
+ }
+ var subrsOffset = privateDict.getByName('Subrs');
+ var relativeOffset = offset + subrsOffset;
+ // Validate the offset.
+ if (subrsOffset === 0 || relativeOffset >= this.bytes.length) {
+ this.emptyPrivateDictionary(parentDict);
+ return;
+ }
+ var subrsIndex = this.parseIndex(relativeOffset);
+ privateDict.subrsIndex = subrsIndex.obj;
+ },
+ parseCharsets: function CFFParser_parseCharsets(pos, length, strings, cid) {
+ if (pos === 0) {
+ return new CFFCharset(true, CFFCharsetPredefinedTypes.ISO_ADOBE,
+ ISOAdobeCharset);
+ } else if (pos === 1) {
+ return new CFFCharset(true, CFFCharsetPredefinedTypes.EXPERT,
+ ExpertCharset);
+ } else if (pos === 2) {
+ return new CFFCharset(true, CFFCharsetPredefinedTypes.EXPERT_SUBSET,
+ ExpertSubsetCharset);
+ }
+
+ var bytes = this.bytes;
+ var start = pos;
+ var format = bytes[pos++];
+ var charset = ['.notdef'];
+ var id, count, i;
+
+ // subtract 1 for the .notdef glyph
+ length -= 1;
+
+ switch (format) {
+ case 0:
+ for (i = 0; i < length; i++) {
+ id = (bytes[pos++] << 8) | bytes[pos++];
+ charset.push(cid ? id : strings.get(id));
+ }
+ break;
+ case 1:
+ while (charset.length <= length) {
+ id = (bytes[pos++] << 8) | bytes[pos++];
+ count = bytes[pos++];
+ for (i = 0; i <= count; i++) {
+ charset.push(cid ? id++ : strings.get(id++));
+ }
+ }
+ break;
+ case 2:
+ while (charset.length <= length) {
+ id = (bytes[pos++] << 8) | bytes[pos++];
+ count = (bytes[pos++] << 8) | bytes[pos++];
+ for (i = 0; i <= count; i++) {
+ charset.push(cid ? id++ : strings.get(id++));
+ }
+ }
+ break;
+ default:
+ error('Unknown charset format');
+ }
+ // Raw won't be needed if we actually compile the charset.
+ var end = pos;
+ var raw = bytes.subarray(start, end);
+
+ return new CFFCharset(false, format, charset, raw);
+ },
+ parseEncoding: function CFFParser_parseEncoding(pos,
+ properties,
+ strings,
+ charset) {
+ var encoding = {};
+ var bytes = this.bytes;
+ var predefined = false;
+ var hasSupplement = false;
+ var format, i, ii;
+ var raw = null;
+
+ function readSupplement() {
+ var supplementsCount = bytes[pos++];
+ for (i = 0; i < supplementsCount; i++) {
+ var code = bytes[pos++];
+ var sid = (bytes[pos++] << 8) + (bytes[pos++] & 0xff);
+ encoding[code] = charset.indexOf(strings.get(sid));
+ }
+ }
+
+ if (pos === 0 || pos === 1) {
+ predefined = true;
+ format = pos;
+ var baseEncoding = pos ? Encodings.ExpertEncoding :
+ Encodings.StandardEncoding;
+ for (i = 0, ii = charset.length; i < ii; i++) {
+ var index = baseEncoding.indexOf(charset[i]);
+ if (index !== -1) {
+ encoding[index] = i;
+ }
+ }
+ } else {
+ var dataStart = pos;
+ format = bytes[pos++];
+ switch (format & 0x7f) {
+ case 0:
+ var glyphsCount = bytes[pos++];
+ for (i = 1; i <= glyphsCount; i++) {
+ encoding[bytes[pos++]] = i;
+ }
+ break;
+
+ case 1:
+ var rangesCount = bytes[pos++];
+ var gid = 1;
+ for (i = 0; i < rangesCount; i++) {
+ var start = bytes[pos++];
+ var left = bytes[pos++];
+ for (var j = start; j <= start + left; j++) {
+ encoding[j] = gid++;
+ }
+ }
+ break;
+
+ default:
+ error('Unknow encoding format: ' + format + ' in CFF');
+ break;
+ }
+ var dataEnd = pos;
+ if (format & 0x80) {
+ // The font sanitizer does not support CFF encoding with a
+ // supplement, since the encoding is not really used to map
+ // between gid to glyph, let's overwrite what is declared in
+ // the top dictionary to let the sanitizer think the font use
+ // StandardEncoding, that's a lie but that's ok.
+ bytes[dataStart] &= 0x7f;
+ readSupplement();
+ hasSupplement = true;
+ }
+ raw = bytes.subarray(dataStart, dataEnd);
+ }
+ format = format & 0x7f;
+ return new CFFEncoding(predefined, format, encoding, raw);
+ },
+ parseFDSelect: function CFFParser_parseFDSelect(pos, length) {
+ var start = pos;
+ var bytes = this.bytes;
+ var format = bytes[pos++];
+ var fdSelect = [];
+ var i;
+
+ switch (format) {
+ case 0:
+ for (i = 0; i < length; ++i) {
+ var id = bytes[pos++];
+ fdSelect.push(id);
+ }
+ break;
+ case 3:
+ var rangesCount = (bytes[pos++] << 8) | bytes[pos++];
+ for (i = 0; i < rangesCount; ++i) {
+ var first = (bytes[pos++] << 8) | bytes[pos++];
+ var fdIndex = bytes[pos++];
+ var next = (bytes[pos] << 8) | bytes[pos + 1];
+ for (var j = first; j < next; ++j) {
+ fdSelect.push(fdIndex);
+ }
+ }
+ // Advance past the sentinel(next).
+ pos += 2;
+ break;
+ default:
+ error('Unknown fdselect format ' + format);
+ break;
+ }
+ var end = pos;
+ return new CFFFDSelect(fdSelect, bytes.subarray(start, end));
+ }
+ };
+ return CFFParser;
+})();
+
+// Compact Font Format
+var CFF = (function CFFClosure() {
+ function CFF() {
+ this.header = null;
+ this.names = [];
+ this.topDict = null;
+ this.strings = new CFFStrings();
+ this.globalSubrIndex = null;
+
+ // The following could really be per font, but since we only have one font
+ // store them here.
+ this.encoding = null;
+ this.charset = null;
+ this.charStrings = null;
+ this.fdArray = [];
+ this.fdSelect = null;
+
+ this.isCIDFont = false;
+ }
+ return CFF;
+})();
+
+var CFFHeader = (function CFFHeaderClosure() {
+ function CFFHeader(major, minor, hdrSize, offSize) {
+ this.major = major;
+ this.minor = minor;
+ this.hdrSize = hdrSize;
+ this.offSize = offSize;
+ }
+ return CFFHeader;
+})();
+
+var CFFStrings = (function CFFStringsClosure() {
+ function CFFStrings() {
+ this.strings = [];
+ }
+ CFFStrings.prototype = {
+ get: function CFFStrings_get(index) {
+ if (index >= 0 && index <= 390) {
+ return CFFStandardStrings[index];
+ }
+ if (index - 391 <= this.strings.length) {
+ return this.strings[index - 391];
+ }
+ return CFFStandardStrings[0];
+ },
+ add: function CFFStrings_add(value) {
+ this.strings.push(value);
+ },
+ get count() {
+ return this.strings.length;
+ }
+ };
+ return CFFStrings;
+})();
+
+var CFFIndex = (function CFFIndexClosure() {
+ function CFFIndex() {
+ this.objects = [];
+ this.length = 0;
+ }
+ CFFIndex.prototype = {
+ add: function CFFIndex_add(data) {
+ this.length += data.length;
+ this.objects.push(data);
+ },
+ set: function CFFIndex_set(index, data) {
+ this.length += data.length - this.objects[index].length;
+ this.objects[index] = data;
+ },
+ get: function CFFIndex_get(index) {
+ return this.objects[index];
+ },
+ get count() {
+ return this.objects.length;
+ }
+ };
+ return CFFIndex;
+})();
+
+var CFFDict = (function CFFDictClosure() {
+ function CFFDict(tables, strings) {
+ this.keyToNameMap = tables.keyToNameMap;
+ this.nameToKeyMap = tables.nameToKeyMap;
+ this.defaults = tables.defaults;
+ this.types = tables.types;
+ this.opcodes = tables.opcodes;
+ this.order = tables.order;
+ this.strings = strings;
+ this.values = {};
+ }
+ CFFDict.prototype = {
+ // value should always be an array
+ setByKey: function CFFDict_setByKey(key, value) {
+ if (!(key in this.keyToNameMap)) {
+ return false;
+ }
+ // ignore empty values
+ if (value.length === 0) {
+ return true;
+ }
+ var type = this.types[key];
+ // remove the array wrapping these types of values
+ if (type === 'num' || type === 'sid' || type === 'offset') {
+ value = value[0];
+ }
+ this.values[key] = value;
+ return true;
+ },
+ setByName: function CFFDict_setByName(name, value) {
+ if (!(name in this.nameToKeyMap)) {
+ error('Invalid dictionary name "' + name + '"');
+ }
+ this.values[this.nameToKeyMap[name]] = value;
+ },
+ hasName: function CFFDict_hasName(name) {
+ return this.nameToKeyMap[name] in this.values;
+ },
+ getByName: function CFFDict_getByName(name) {
+ if (!(name in this.nameToKeyMap)) {
+ error('Invalid dictionary name "' + name + '"');
+ }
+ var key = this.nameToKeyMap[name];
+ if (!(key in this.values)) {
+ return this.defaults[key];
+ }
+ return this.values[key];
+ },
+ removeByName: function CFFDict_removeByName(name) {
+ delete this.values[this.nameToKeyMap[name]];
+ }
+ };
+ CFFDict.createTables = function CFFDict_createTables(layout) {
+ var tables = {
+ keyToNameMap: {},
+ nameToKeyMap: {},
+ defaults: {},
+ types: {},
+ opcodes: {},
+ order: []
+ };
+ for (var i = 0, ii = layout.length; i < ii; ++i) {
+ var entry = layout[i];
+ var key = isArray(entry[0]) ? (entry[0][0] << 8) + entry[0][1] : entry[0];
+ tables.keyToNameMap[key] = entry[1];
+ tables.nameToKeyMap[entry[1]] = key;
+ tables.types[key] = entry[2];
+ tables.defaults[key] = entry[3];
+ tables.opcodes[key] = isArray(entry[0]) ? entry[0] : [entry[0]];
+ tables.order.push(key);
+ }
+ return tables;
+ };
+ return CFFDict;
+})();
+
+var CFFTopDict = (function CFFTopDictClosure() {
+ var layout = [
+ [[12, 30], 'ROS', ['sid', 'sid', 'num'], null],
+ [[12, 20], 'SyntheticBase', 'num', null],
+ [0, 'version', 'sid', null],
+ [1, 'Notice', 'sid', null],
+ [[12, 0], 'Copyright', 'sid', null],
+ [2, 'FullName', 'sid', null],
+ [3, 'FamilyName', 'sid', null],
+ [4, 'Weight', 'sid', null],
+ [[12, 1], 'isFixedPitch', 'num', 0],
+ [[12, 2], 'ItalicAngle', 'num', 0],
+ [[12, 3], 'UnderlinePosition', 'num', -100],
+ [[12, 4], 'UnderlineThickness', 'num', 50],
+ [[12, 5], 'PaintType', 'num', 0],
+ [[12, 6], 'CharstringType', 'num', 2],
+ [[12, 7], 'FontMatrix', ['num', 'num', 'num', 'num', 'num', 'num'],
+ [0.001, 0, 0, 0.001, 0, 0]],
+ [13, 'UniqueID', 'num', null],
+ [5, 'FontBBox', ['num', 'num', 'num', 'num'], [0, 0, 0, 0]],
+ [[12, 8], 'StrokeWidth', 'num', 0],
+ [14, 'XUID', 'array', null],
+ [15, 'charset', 'offset', 0],
+ [16, 'Encoding', 'offset', 0],
+ [17, 'CharStrings', 'offset', 0],
+ [18, 'Private', ['offset', 'offset'], null],
+ [[12, 21], 'PostScript', 'sid', null],
+ [[12, 22], 'BaseFontName', 'sid', null],
+ [[12, 23], 'BaseFontBlend', 'delta', null],
+ [[12, 31], 'CIDFontVersion', 'num', 0],
+ [[12, 32], 'CIDFontRevision', 'num', 0],
+ [[12, 33], 'CIDFontType', 'num', 0],
+ [[12, 34], 'CIDCount', 'num', 8720],
+ [[12, 35], 'UIDBase', 'num', null],
+ // XXX: CID Fonts on DirectWrite 6.1 only seem to work if FDSelect comes
+ // before FDArray.
+ [[12, 37], 'FDSelect', 'offset', null],
+ [[12, 36], 'FDArray', 'offset', null],
+ [[12, 38], 'FontName', 'sid', null]
+ ];
+ var tables = null;
+ function CFFTopDict(strings) {
+ if (tables === null) {
+ tables = CFFDict.createTables(layout);
+ }
+ CFFDict.call(this, tables, strings);
+ this.privateDict = null;
+ }
+ CFFTopDict.prototype = Object.create(CFFDict.prototype);
+ return CFFTopDict;
+})();
+
+var CFFPrivateDict = (function CFFPrivateDictClosure() {
+ var layout = [
+ [6, 'BlueValues', 'delta', null],
+ [7, 'OtherBlues', 'delta', null],
+ [8, 'FamilyBlues', 'delta', null],
+ [9, 'FamilyOtherBlues', 'delta', null],
+ [[12, 9], 'BlueScale', 'num', 0.039625],
+ [[12, 10], 'BlueShift', 'num', 7],
+ [[12, 11], 'BlueFuzz', 'num', 1],
+ [10, 'StdHW', 'num', null],
+ [11, 'StdVW', 'num', null],
+ [[12, 12], 'StemSnapH', 'delta', null],
+ [[12, 13], 'StemSnapV', 'delta', null],
+ [[12, 14], 'ForceBold', 'num', 0],
+ [[12, 17], 'LanguageGroup', 'num', 0],
+ [[12, 18], 'ExpansionFactor', 'num', 0.06],
+ [[12, 19], 'initialRandomSeed', 'num', 0],
+ [20, 'defaultWidthX', 'num', 0],
+ [21, 'nominalWidthX', 'num', 0],
+ [19, 'Subrs', 'offset', null]
+ ];
+ var tables = null;
+ function CFFPrivateDict(strings) {
+ if (tables === null) {
+ tables = CFFDict.createTables(layout);
+ }
+ CFFDict.call(this, tables, strings);
+ this.subrsIndex = null;
+ }
+ CFFPrivateDict.prototype = Object.create(CFFDict.prototype);
+ return CFFPrivateDict;
+})();
+
+var CFFCharsetPredefinedTypes = {
+ ISO_ADOBE: 0,
+ EXPERT: 1,
+ EXPERT_SUBSET: 2
+};
+var CFFCharset = (function CFFCharsetClosure() {
+ function CFFCharset(predefined, format, charset, raw) {
+ this.predefined = predefined;
+ this.format = format;
+ this.charset = charset;
+ this.raw = raw;
+ }
+ return CFFCharset;
+})();
+
+var CFFEncoding = (function CFFEncodingClosure() {
+ function CFFEncoding(predefined, format, encoding, raw) {
+ this.predefined = predefined;
+ this.format = format;
+ this.encoding = encoding;
+ this.raw = raw;
+ }
+ return CFFEncoding;
+})();
+
+var CFFFDSelect = (function CFFFDSelectClosure() {
+ function CFFFDSelect(fdSelect, raw) {
+ this.fdSelect = fdSelect;
+ this.raw = raw;
+ }
+ return CFFFDSelect;
+})();
+
+// Helper class to keep track of where an offset is within the data and helps
+// filling in that offset once it's known.
+var CFFOffsetTracker = (function CFFOffsetTrackerClosure() {
+ function CFFOffsetTracker() {
+ this.offsets = {};
+ }
+ CFFOffsetTracker.prototype = {
+ isTracking: function CFFOffsetTracker_isTracking(key) {
+ return key in this.offsets;
+ },
+ track: function CFFOffsetTracker_track(key, location) {
+ if (key in this.offsets) {
+ error('Already tracking location of ' + key);
+ }
+ this.offsets[key] = location;
+ },
+ offset: function CFFOffsetTracker_offset(value) {
+ for (var key in this.offsets) {
+ this.offsets[key] += value;
+ }
+ },
+ setEntryLocation: function CFFOffsetTracker_setEntryLocation(key,
+ values,
+ output) {
+ if (!(key in this.offsets)) {
+ error('Not tracking location of ' + key);
+ }
+ var data = output.data;
+ var dataOffset = this.offsets[key];
+ var size = 5;
+ for (var i = 0, ii = values.length; i < ii; ++i) {
+ var offset0 = i * size + dataOffset;
+ var offset1 = offset0 + 1;
+ var offset2 = offset0 + 2;
+ var offset3 = offset0 + 3;
+ var offset4 = offset0 + 4;
+ // It's easy to screw up offsets so perform this sanity check.
+ if (data[offset0] !== 0x1d || data[offset1] !== 0 ||
+ data[offset2] !== 0 || data[offset3] !== 0 || data[offset4] !== 0) {
+ error('writing to an offset that is not empty');
+ }
+ var value = values[i];
+ data[offset0] = 0x1d;
+ data[offset1] = (value >> 24) & 0xFF;
+ data[offset2] = (value >> 16) & 0xFF;
+ data[offset3] = (value >> 8) & 0xFF;
+ data[offset4] = value & 0xFF;
+ }
+ }
+ };
+ return CFFOffsetTracker;
+})();
+
+// Takes a CFF and converts it to the binary representation.
+var CFFCompiler = (function CFFCompilerClosure() {
+ function CFFCompiler(cff) {
+ this.cff = cff;
+ }
+ CFFCompiler.prototype = {
+ compile: function CFFCompiler_compile() {
+ var cff = this.cff;
+ var output = {
+ data: [],
+ length: 0,
+ add: function CFFCompiler_add(data) {
+ this.data = this.data.concat(data);
+ this.length = this.data.length;
+ }
+ };
+
+ // Compile the five entries that must be in order.
+ var header = this.compileHeader(cff.header);
+ output.add(header);
+
+ var nameIndex = this.compileNameIndex(cff.names);
+ output.add(nameIndex);
+
+ if (cff.isCIDFont) {
+ // The spec is unclear on how font matrices should relate to each other
+ // when there is one in the main top dict and the sub top dicts.
+ // Windows handles this differently than linux and osx so we have to
+ // normalize to work on all.
+ // Rules based off of some mailing list discussions:
+ // - If main font has a matrix and subfont doesn't, use the main matrix.
+ // - If no main font matrix and there is a subfont matrix, use the
+ // subfont matrix.
+ // - If both have matrices, concat together.
+ // - If neither have matrices, use default.
+ // To make this work on all platforms we move the top matrix into each
+ // sub top dict and concat if necessary.
+ if (cff.topDict.hasName('FontMatrix')) {
+ var base = cff.topDict.getByName('FontMatrix');
+ cff.topDict.removeByName('FontMatrix');
+ for (var i = 0, ii = cff.fdArray.length; i < ii; i++) {
+ var subDict = cff.fdArray[i];
+ var matrix = base.slice(0);
+ if (subDict.hasName('FontMatrix')) {
+ matrix = Util.transform(matrix, subDict.getByName('FontMatrix'));
+ }
+ subDict.setByName('FontMatrix', matrix);
+ }
+ }
+ }
+
+ var compiled = this.compileTopDicts([cff.topDict],
+ output.length,
+ cff.isCIDFont);
+ output.add(compiled.output);
+ var topDictTracker = compiled.trackers[0];
+
+ var stringIndex = this.compileStringIndex(cff.strings.strings);
+ output.add(stringIndex);
+
+ var globalSubrIndex = this.compileIndex(cff.globalSubrIndex);
+ output.add(globalSubrIndex);
+
+ // Now start on the other entries that have no specfic order.
+ if (cff.encoding && cff.topDict.hasName('Encoding')) {
+ if (cff.encoding.predefined) {
+ topDictTracker.setEntryLocation('Encoding', [cff.encoding.format],
+ output);
+ } else {
+ var encoding = this.compileEncoding(cff.encoding);
+ topDictTracker.setEntryLocation('Encoding', [output.length], output);
+ output.add(encoding);
+ }
+ }
+
+ if (cff.charset && cff.topDict.hasName('charset')) {
+ if (cff.charset.predefined) {
+ topDictTracker.setEntryLocation('charset', [cff.charset.format],
+ output);
+ } else {
+ var charset = this.compileCharset(cff.charset);
+ topDictTracker.setEntryLocation('charset', [output.length], output);
+ output.add(charset);
+ }
+ }
+
+ var charStrings = this.compileCharStrings(cff.charStrings);
+ topDictTracker.setEntryLocation('CharStrings', [output.length], output);
+ output.add(charStrings);
+
+ if (cff.isCIDFont) {
+ // For some reason FDSelect must be in front of FDArray on windows. OSX
+ // and linux don't seem to care.
+ topDictTracker.setEntryLocation('FDSelect', [output.length], output);
+ var fdSelect = this.compileFDSelect(cff.fdSelect.raw);
+ output.add(fdSelect);
+ // It is unclear if the sub font dictionary can have CID related
+ // dictionary keys, but the sanitizer doesn't like them so remove them.
+ compiled = this.compileTopDicts(cff.fdArray, output.length, true);
+ topDictTracker.setEntryLocation('FDArray', [output.length], output);
+ output.add(compiled.output);
+ var fontDictTrackers = compiled.trackers;
+
+ this.compilePrivateDicts(cff.fdArray, fontDictTrackers, output);
+ }
+
+ this.compilePrivateDicts([cff.topDict], [topDictTracker], output);
+
+ // If the font data ends with INDEX whose object data is zero-length,
+ // the sanitizer will bail out. Add a dummy byte to avoid that.
+ output.add([0]);
+
+ return output.data;
+ },
+ encodeNumber: function CFFCompiler_encodeNumber(value) {
+ if (parseFloat(value) === parseInt(value, 10) && !isNaN(value)) { // isInt
+ return this.encodeInteger(value);
+ } else {
+ return this.encodeFloat(value);
+ }
+ },
+ encodeFloat: function CFFCompiler_encodeFloat(num) {
+ var value = num.toString();
+
+ // rounding inaccurate doubles
+ var m = /\.(\d*?)(?:9{5,20}|0{5,20})\d{0,2}(?:e(.+)|$)/.exec(value);
+ if (m) {
+ var epsilon = parseFloat('1e' + ((m[2] ? +m[2] : 0) + m[1].length));
+ value = (Math.round(num * epsilon) / epsilon).toString();
+ }
+
+ var nibbles = '';
+ var i, ii;
+ for (i = 0, ii = value.length; i < ii; ++i) {
+ var a = value[i];
+ if (a === 'e') {
+ nibbles += value[++i] === '-' ? 'c' : 'b';
+ } else if (a === '.') {
+ nibbles += 'a';
+ } else if (a === '-') {
+ nibbles += 'e';
+ } else {
+ nibbles += a;
+ }
+ }
+ nibbles += (nibbles.length & 1) ? 'f' : 'ff';
+ var out = [30];
+ for (i = 0, ii = nibbles.length; i < ii; i += 2) {
+ out.push(parseInt(nibbles.substr(i, 2), 16));
+ }
+ return out;
+ },
+ encodeInteger: function CFFCompiler_encodeInteger(value) {
+ var code;
+ if (value >= -107 && value <= 107) {
+ code = [value + 139];
+ } else if (value >= 108 && value <= 1131) {
+ value = [value - 108];
+ code = [(value >> 8) + 247, value & 0xFF];
+ } else if (value >= -1131 && value <= -108) {
+ value = -value - 108;
+ code = [(value >> 8) + 251, value & 0xFF];
+ } else if (value >= -32768 && value <= 32767) {
+ code = [0x1c, (value >> 8) & 0xFF, value & 0xFF];
+ } else {
+ code = [0x1d,
+ (value >> 24) & 0xFF,
+ (value >> 16) & 0xFF,
+ (value >> 8) & 0xFF,
+ value & 0xFF];
+ }
+ return code;
+ },
+ compileHeader: function CFFCompiler_compileHeader(header) {
+ return [
+ header.major,
+ header.minor,
+ header.hdrSize,
+ header.offSize
+ ];
+ },
+ compileNameIndex: function CFFCompiler_compileNameIndex(names) {
+ var nameIndex = new CFFIndex();
+ for (var i = 0, ii = names.length; i < ii; ++i) {
+ nameIndex.add(stringToBytes(names[i]));
+ }
+ return this.compileIndex(nameIndex);
+ },
+ compileTopDicts: function CFFCompiler_compileTopDicts(dicts,
+ length,
+ removeCidKeys) {
+ var fontDictTrackers = [];
+ var fdArrayIndex = new CFFIndex();
+ for (var i = 0, ii = dicts.length; i < ii; ++i) {
+ var fontDict = dicts[i];
+ if (removeCidKeys) {
+ fontDict.removeByName('CIDFontVersion');
+ fontDict.removeByName('CIDFontRevision');
+ fontDict.removeByName('CIDFontType');
+ fontDict.removeByName('CIDCount');
+ fontDict.removeByName('UIDBase');
+ }
+ var fontDictTracker = new CFFOffsetTracker();
+ var fontDictData = this.compileDict(fontDict, fontDictTracker);
+ fontDictTrackers.push(fontDictTracker);
+ fdArrayIndex.add(fontDictData);
+ fontDictTracker.offset(length);
+ }
+ fdArrayIndex = this.compileIndex(fdArrayIndex, fontDictTrackers);
+ return {
+ trackers: fontDictTrackers,
+ output: fdArrayIndex
+ };
+ },
+ compilePrivateDicts: function CFFCompiler_compilePrivateDicts(dicts,
+ trackers,
+ output) {
+ for (var i = 0, ii = dicts.length; i < ii; ++i) {
+ var fontDict = dicts[i];
+ assert(fontDict.privateDict && fontDict.hasName('Private'),
+ 'There must be an private dictionary.');
+ var privateDict = fontDict.privateDict;
+ var privateDictTracker = new CFFOffsetTracker();
+ var privateDictData = this.compileDict(privateDict, privateDictTracker);
+
+ var outputLength = output.length;
+ privateDictTracker.offset(outputLength);
+ if (!privateDictData.length) {
+ // The private dictionary was empty, set the output length to zero to
+ // ensure the offset length isn't out of bounds in the eyes of the
+ // sanitizer.
+ outputLength = 0;
+ }
+
+ trackers[i].setEntryLocation('Private',
+ [privateDictData.length, outputLength],
+ output);
+ output.add(privateDictData);
+
+ if (privateDict.subrsIndex && privateDict.hasName('Subrs')) {
+ var subrs = this.compileIndex(privateDict.subrsIndex);
+ privateDictTracker.setEntryLocation('Subrs', [privateDictData.length],
+ output);
+ output.add(subrs);
+ }
+ }
+ },
+ compileDict: function CFFCompiler_compileDict(dict, offsetTracker) {
+ var out = [];
+ // The dictionary keys must be in a certain order.
+ var order = dict.order;
+ for (var i = 0; i < order.length; ++i) {
+ var key = order[i];
+ if (!(key in dict.values)) {
+ continue;
+ }
+ var values = dict.values[key];
+ var types = dict.types[key];
+ if (!isArray(types)) {
+ types = [types];
+ }
+ if (!isArray(values)) {
+ values = [values];
+ }
+
+ // Remove any empty dict values.
+ if (values.length === 0) {
+ continue;
+ }
+
+ for (var j = 0, jj = types.length; j < jj; ++j) {
+ var type = types[j];
+ var value = values[j];
+ switch (type) {
+ case 'num':
+ case 'sid':
+ out = out.concat(this.encodeNumber(value));
+ break;
+ case 'offset':
+ // For offsets we just insert a 32bit integer so we don't have to
+ // deal with figuring out the length of the offset when it gets
+ // replaced later on by the compiler.
+ var name = dict.keyToNameMap[key];
+ // Some offsets have the offset and the length, so just record the
+ // position of the first one.
+ if (!offsetTracker.isTracking(name)) {
+ offsetTracker.track(name, out.length);
+ }
+ out = out.concat([0x1d, 0, 0, 0, 0]);
+ break;
+ case 'array':
+ case 'delta':
+ out = out.concat(this.encodeNumber(value));
+ for (var k = 1, kk = values.length; k < kk; ++k) {
+ out = out.concat(this.encodeNumber(values[k]));
+ }
+ break;
+ default:
+ error('Unknown data type of ' + type);
+ break;
+ }
+ }
+ out = out.concat(dict.opcodes[key]);
+ }
+ return out;
+ },
+ compileStringIndex: function CFFCompiler_compileStringIndex(strings) {
+ var stringIndex = new CFFIndex();
+ for (var i = 0, ii = strings.length; i < ii; ++i) {
+ stringIndex.add(stringToBytes(strings[i]));
+ }
+ return this.compileIndex(stringIndex);
+ },
+ compileGlobalSubrIndex: function CFFCompiler_compileGlobalSubrIndex() {
+ var globalSubrIndex = this.cff.globalSubrIndex;
+ this.out.writeByteArray(this.compileIndex(globalSubrIndex));
+ },
+ compileCharStrings: function CFFCompiler_compileCharStrings(charStrings) {
+ return this.compileIndex(charStrings);
+ },
+ compileCharset: function CFFCompiler_compileCharset(charset) {
+ return this.compileTypedArray(charset.raw);
+ },
+ compileEncoding: function CFFCompiler_compileEncoding(encoding) {
+ return this.compileTypedArray(encoding.raw);
+ },
+ compileFDSelect: function CFFCompiler_compileFDSelect(fdSelect) {
+ return this.compileTypedArray(fdSelect);
+ },
+ compileTypedArray: function CFFCompiler_compileTypedArray(data) {
+ var out = [];
+ for (var i = 0, ii = data.length; i < ii; ++i) {
+ out[i] = data[i];
+ }
+ return out;
+ },
+ compileIndex: function CFFCompiler_compileIndex(index, trackers) {
+ trackers = trackers || [];
+ var objects = index.objects;
+ // First 2 bytes contains the number of objects contained into this index
+ var count = objects.length;
+
+ // If there is no object, just create an index. This technically
+ // should just be [0, 0] but OTS has an issue with that.
+ if (count === 0) {
+ return [0, 0, 0];
+ }
+
+ var data = [(count >> 8) & 0xFF, count & 0xff];
+
+ var lastOffset = 1, i;
+ for (i = 0; i < count; ++i) {
+ lastOffset += objects[i].length;
+ }
+
+ var offsetSize;
+ if (lastOffset < 0x100) {
+ offsetSize = 1;
+ } else if (lastOffset < 0x10000) {
+ offsetSize = 2;
+ } else if (lastOffset < 0x1000000) {
+ offsetSize = 3;
+ } else {
+ offsetSize = 4;
+ }
+
+ // Next byte contains the offset size use to reference object in the file
+ data.push(offsetSize);
+
+ // Add another offset after this one because we need a new offset
+ var relativeOffset = 1;
+ for (i = 0; i < count + 1; i++) {
+ if (offsetSize === 1) {
+ data.push(relativeOffset & 0xFF);
+ } else if (offsetSize === 2) {
+ data.push((relativeOffset >> 8) & 0xFF,
+ relativeOffset & 0xFF);
+ } else if (offsetSize === 3) {
+ data.push((relativeOffset >> 16) & 0xFF,
+ (relativeOffset >> 8) & 0xFF,
+ relativeOffset & 0xFF);
+ } else {
+ data.push((relativeOffset >>> 24) & 0xFF,
+ (relativeOffset >> 16) & 0xFF,
+ (relativeOffset >> 8) & 0xFF,
+ relativeOffset & 0xFF);
+ }
+
+ if (objects[i]) {
+ relativeOffset += objects[i].length;
+ }
+ }
+
+ for (i = 0; i < count; i++) {
+ // Notify the tracker where the object will be offset in the data.
+ if (trackers[i]) {
+ trackers[i].offset(data.length);
+ }
+ for (var j = 0, jj = objects[i].length; j < jj; j++) {
+ data.push(objects[i][j]);
+ }
+ }
+ return data;
+ }
+ };
+ return CFFCompiler;
+})();
+
+// Workaround for seac on Windows.
+(function checkSeacSupport() {
+ if (/Windows/.test(navigator.userAgent)) {
+ SEAC_ANALYSIS_ENABLED = true;
+ }
+})();
+
+// Workaround for Private Use Area characters in Chrome on Windows
+// http://code.google.com/p/chromium/issues/detail?id=122465
+// https://github.com/mozilla/pdf.js/issues/1689
+(function checkChromeWindows() {
+ if (/Windows.*Chrome/.test(navigator.userAgent)) {
+ SKIP_PRIVATE_USE_RANGE_F000_TO_F01F = true;
+ }
+})();
+
+
+var FontRendererFactory = (function FontRendererFactoryClosure() {
+ function getLong(data, offset) {
+ return (data[offset] << 24) | (data[offset + 1] << 16) |
+ (data[offset + 2] << 8) | data[offset + 3];
+ }
+
+ function getUshort(data, offset) {
+ return (data[offset] << 8) | data[offset + 1];
+ }
+
+ function parseCmap(data, start, end) {
+ var offset = (getUshort(data, start + 2) === 1 ?
+ getLong(data, start + 8) : getLong(data, start + 16));
+ var format = getUshort(data, start + offset);
+ var length, ranges, p, i;
+ if (format === 4) {
+ length = getUshort(data, start + offset + 2);
+ var segCount = getUshort(data, start + offset + 6) >> 1;
+ p = start + offset + 14;
+ ranges = [];
+ for (i = 0; i < segCount; i++, p += 2) {
+ ranges[i] = {end: getUshort(data, p)};
+ }
+ p += 2;
+ for (i = 0; i < segCount; i++, p += 2) {
+ ranges[i].start = getUshort(data, p);
+ }
+ for (i = 0; i < segCount; i++, p += 2) {
+ ranges[i].idDelta = getUshort(data, p);
+ }
+ for (i = 0; i < segCount; i++, p += 2) {
+ var idOffset = getUshort(data, p);
+ if (idOffset === 0) {
+ continue;
+ }
+ ranges[i].ids = [];
+ for (var j = 0, jj = ranges[i].end - ranges[i].start + 1; j < jj; j++) {
+ ranges[i].ids[j] = getUshort(data, p + idOffset);
+ idOffset += 2;
+ }
+ }
+ return ranges;
+ } else if (format === 12) {
+ length = getLong(data, start + offset + 4);
+ var groups = getLong(data, start + offset + 12);
+ p = start + offset + 16;
+ ranges = [];
+ for (i = 0; i < groups; i++) {
+ ranges.push({
+ start: getLong(data, p),
+ end: getLong(data, p + 4),
+ idDelta: getLong(data, p + 8) - getLong(data, p)
+ });
+ p += 12;
+ }
+ return ranges;
+ }
+ error('not supported cmap: ' + format);
+ }
+
+ function parseCff(data, start, end) {
+ var properties = {};
+ var parser = new CFFParser(new Stream(data, start, end - start),
+ properties);
+ var cff = parser.parse();
+ return {
+ glyphs: cff.charStrings.objects,
+ subrs: (cff.topDict.privateDict && cff.topDict.privateDict.subrsIndex &&
+ cff.topDict.privateDict.subrsIndex.objects),
+ gsubrs: cff.globalSubrIndex && cff.globalSubrIndex.objects
+ };
+ }
+
+ function parseGlyfTable(glyf, loca, isGlyphLocationsLong) {
+ var itemSize, itemDecode;
+ if (isGlyphLocationsLong) {
+ itemSize = 4;
+ itemDecode = function fontItemDecodeLong(data, offset) {
+ return (data[offset] << 24) | (data[offset + 1] << 16) |
+ (data[offset + 2] << 8) | data[offset + 3];
+ };
+ } else {
+ itemSize = 2;
+ itemDecode = function fontItemDecode(data, offset) {
+ return (data[offset] << 9) | (data[offset + 1] << 1);
+ };
+ }
+ var glyphs = [];
+ var startOffset = itemDecode(loca, 0);
+ for (var j = itemSize; j < loca.length; j += itemSize) {
+ var endOffset = itemDecode(loca, j);
+ glyphs.push(glyf.subarray(startOffset, endOffset));
+ startOffset = endOffset;
+ }
+ return glyphs;
+ }
+
+ function lookupCmap(ranges, unicode) {
+ var code = unicode.charCodeAt(0);
+ var l = 0, r = ranges.length - 1;
+ while (l < r) {
+ var c = (l + r + 1) >> 1;
+ if (code < ranges[c].start) {
+ r = c - 1;
+ } else {
+ l = c;
+ }
+ }
+ if (ranges[l].start <= code && code <= ranges[l].end) {
+ return (ranges[l].idDelta + (ranges[l].ids ?
+ ranges[l].ids[code - ranges[l].start] : code)) & 0xFFFF;
+ }
+ return 0;
+ }
+
+ function compileGlyf(code, js, font) {
+ function moveTo(x, y) {
+ js.push('c.moveTo(' + x + ',' + y + ');');
+ }
+ function lineTo(x, y) {
+ js.push('c.lineTo(' + x + ',' + y + ');');
+ }
+ function quadraticCurveTo(xa, ya, x, y) {
+ js.push('c.quadraticCurveTo(' + xa + ',' + ya + ',' +
+ x + ',' + y + ');');
+ }
+
+ var i = 0;
+ var numberOfContours = ((code[i] << 24) | (code[i + 1] << 16)) >> 16;
+ var flags;
+ var x = 0, y = 0;
+ i += 10;
+ if (numberOfContours < 0) {
+ // composite glyph
+ do {
+ flags = (code[i] << 8) | code[i + 1];
+ var glyphIndex = (code[i + 2] << 8) | code[i + 3];
+ i += 4;
+ var arg1, arg2;
+ if ((flags & 0x01)) {
+ arg1 = ((code[i] << 24) | (code[i + 1] << 16)) >> 16;
+ arg2 = ((code[i + 2] << 24) | (code[i + 3] << 16)) >> 16;
+ i += 4;
+ } else {
+ arg1 = code[i++]; arg2 = code[i++];
+ }
+ if ((flags & 0x02)) {
+ x = arg1;
+ y = arg2;
+ } else {
+ x = 0; y = 0; // TODO "they are points" ?
+ }
+ var scaleX = 1, scaleY = 1, scale01 = 0, scale10 = 0;
+ if ((flags & 0x08)) {
+ scaleX =
+ scaleY = ((code[i] << 24) | (code[i + 1] << 16)) / 1073741824;
+ i += 2;
+ } else if ((flags & 0x40)) {
+ scaleX = ((code[i] << 24) | (code[i + 1] << 16)) / 1073741824;
+ scaleY = ((code[i + 2] << 24) | (code[i + 3] << 16)) / 1073741824;
+ i += 4;
+ } else if ((flags & 0x80)) {
+ scaleX = ((code[i] << 24) | (code[i + 1] << 16)) / 1073741824;
+ scale01 = ((code[i + 2] << 24) | (code[i + 3] << 16)) / 1073741824;
+ scale10 = ((code[i + 4] << 24) | (code[i + 5] << 16)) / 1073741824;
+ scaleY = ((code[i + 6] << 24) | (code[i + 7] << 16)) / 1073741824;
+ i += 8;
+ }
+ var subglyph = font.glyphs[glyphIndex];
+ if (subglyph) {
+ js.push('c.save();');
+ js.push('c.transform(' + scaleX + ',' + scale01 + ',' +
+ scale10 + ',' + scaleY + ',' + x + ',' + y + ');');
+ compileGlyf(subglyph, js, font);
+ js.push('c.restore();');
+ }
+ } while ((flags & 0x20));
+ } else {
+ // simple glyph
+ var endPtsOfContours = [];
+ var j, jj;
+ for (j = 0; j < numberOfContours; j++) {
+ endPtsOfContours.push((code[i] << 8) | code[i + 1]);
+ i += 2;
+ }
+ var instructionLength = (code[i] << 8) | code[i + 1];
+ i += 2 + instructionLength; // skipping the instructions
+ var numberOfPoints = endPtsOfContours[endPtsOfContours.length - 1] + 1;
+ var points = [];
+ while (points.length < numberOfPoints) {
+ flags = code[i++];
+ var repeat = 1;
+ if ((flags & 0x08)) {
+ repeat += code[i++];
+ }
+ while (repeat-- > 0) {
+ points.push({flags: flags});
+ }
+ }
+ for (j = 0; j < numberOfPoints; j++) {
+ switch (points[j].flags & 0x12) {
+ case 0x00:
+ x += ((code[i] << 24) | (code[i + 1] << 16)) >> 16;
+ i += 2;
+ break;
+ case 0x02:
+ x -= code[i++];
+ break;
+ case 0x12:
+ x += code[i++];
+ break;
+ }
+ points[j].x = x;
+ }
+ for (j = 0; j < numberOfPoints; j++) {
+ switch (points[j].flags & 0x24) {
+ case 0x00:
+ y += ((code[i] << 24) | (code[i + 1] << 16)) >> 16;
+ i += 2;
+ break;
+ case 0x04:
+ y -= code[i++];
+ break;
+ case 0x24:
+ y += code[i++];
+ break;
+ }
+ points[j].y = y;
+ }
+
+ var startPoint = 0;
+ for (i = 0; i < numberOfContours; i++) {
+ var endPoint = endPtsOfContours[i];
+ // contours might have implicit points, which is located in the middle
+ // between two neighboring off-curve points
+ var contour = points.slice(startPoint, endPoint + 1);
+ if ((contour[0].flags & 1)) {
+ contour.push(contour[0]); // using start point at the contour end
+ } else if ((contour[contour.length - 1].flags & 1)) {
+ // first is off-curve point, trying to use one from the end
+ contour.unshift(contour[contour.length - 1]);
+ } else {
+ // start and end are off-curve points, creating implicit one
+ var p = {
+ flags: 1,
+ x: (contour[0].x + contour[contour.length - 1].x) / 2,
+ y: (contour[0].y + contour[contour.length - 1].y) / 2
+ };
+ contour.unshift(p);
+ contour.push(p);
+ }
+ moveTo(contour[0].x, contour[0].y);
+ for (j = 1, jj = contour.length; j < jj; j++) {
+ if ((contour[j].flags & 1)) {
+ lineTo(contour[j].x, contour[j].y);
+ } else if ((contour[j + 1].flags & 1)){
+ quadraticCurveTo(contour[j].x, contour[j].y,
+ contour[j + 1].x, contour[j + 1].y);
+ j++;
+ } else {
+ quadraticCurveTo(contour[j].x, contour[j].y,
+ (contour[j].x + contour[j + 1].x) / 2,
+ (contour[j].y + contour[j + 1].y) / 2);
+ }
+ }
+ startPoint = endPoint + 1;
+ }
+ }
+ }
+
+ function compileCharString(code, js, font) {
+ var stack = [];
+ var x = 0, y = 0;
+ var stems = 0;
+
+ function moveTo(x, y) {
+ js.push('c.moveTo(' + x + ',' + y + ');');
+ }
+ function lineTo(x, y) {
+ js.push('c.lineTo(' + x + ',' + y + ');');
+ }
+ function bezierCurveTo(x1, y1, x2, y2, x, y) {
+ js.push('c.bezierCurveTo(' + x1 + ',' + y1 + ',' + x2 + ',' + y2 + ',' +
+ x + ',' + y + ');');
+ }
+
+ function parse(code) {
+ var i = 0;
+ while (i < code.length) {
+ var stackClean = false;
+ var v = code[i++];
+ var xa, xb, ya, yb, y1, y2, y3, n, subrCode;
+ switch (v) {
+ case 1: // hstem
+ stems += stack.length >> 1;
+ stackClean = true;
+ break;
+ case 3: // vstem
+ stems += stack.length >> 1;
+ stackClean = true;
+ break;
+ case 4: // vmoveto
+ y += stack.pop();
+ moveTo(x, y);
+ stackClean = true;
+ break;
+ case 5: // rlineto
+ while (stack.length > 0) {
+ x += stack.shift();
+ y += stack.shift();
+ lineTo(x, y);
+ }
+ break;
+ case 6: // hlineto
+ while (stack.length > 0) {
+ x += stack.shift();
+ lineTo(x, y);
+ if (stack.length === 0) {
+ break;
+ }
+ y += stack.shift();
+ lineTo(x, y);
+ }
+ break;
+ case 7: // vlineto
+ while (stack.length > 0) {
+ y += stack.shift();
+ lineTo(x, y);
+ if (stack.length === 0) {
+ break;
+ }
+ x += stack.shift();
+ lineTo(x, y);
+ }
+ break;
+ case 8: // rrcurveto
+ while (stack.length > 0) {
+ xa = x + stack.shift(); ya = y + stack.shift();
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb + stack.shift(); y = yb + stack.shift();
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ }
+ break;
+ case 10: // callsubr
+ n = stack.pop() + font.subrsBias;
+ subrCode = font.subrs[n];
+ if (subrCode) {
+ parse(subrCode);
+ }
+ break;
+ case 11: // return
+ return;
+ case 12:
+ v = code[i++];
+ switch (v) {
+ case 34: // flex
+ xa = x + stack.shift();
+ xb = xa + stack.shift(); y1 = y + stack.shift();
+ x = xb + stack.shift();
+ bezierCurveTo(xa, y, xb, y1, x, y1);
+ xa = x + stack.shift();
+ xb = xa + stack.shift();
+ x = xb + stack.shift();
+ bezierCurveTo(xa, y1, xb, y, x, y);
+ break;
+ case 35: // flex
+ xa = x + stack.shift(); ya = y + stack.shift();
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb + stack.shift(); y = yb + stack.shift();
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ xa = x + stack.shift(); ya = y + stack.shift();
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb + stack.shift(); y = yb + stack.shift();
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ stack.pop(); // fd
+ break;
+ case 36: // hflex1
+ xa = x + stack.shift(); y1 = y + stack.shift();
+ xb = xa + stack.shift(); y2 = y1 + stack.shift();
+ x = xb + stack.shift();
+ bezierCurveTo(xa, y1, xb, y2, x, y2);
+ xa = x + stack.shift();
+ xb = xa + stack.shift(); y3 = y2 + stack.shift();
+ x = xb + stack.shift();
+ bezierCurveTo(xa, y2, xb, y3, x, y);
+ break;
+ case 37: // flex1
+ var x0 = x, y0 = y;
+ xa = x + stack.shift(); ya = y + stack.shift();
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb + stack.shift(); y = yb + stack.shift();
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ xa = x + stack.shift(); ya = y + stack.shift();
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb; y = yb;
+ if (Math.abs(x - x0) > Math.abs(y - y0)) {
+ x += stack.shift();
+ } else {
+ y += stack.shift();
+ }
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ break;
+ default:
+ error('unknown operator: 12 ' + v);
+ }
+ break;
+ case 14: // endchar
+ if (stack.length >= 4) {
+ var achar = stack.pop();
+ var bchar = stack.pop();
+ y = stack.pop();
+ x = stack.pop();
+ js.push('c.save();');
+ js.push('c.translate('+ x + ',' + y + ');');
+ var gid = lookupCmap(font.cmap, String.fromCharCode(
+ font.glyphNameMap[Encodings.StandardEncoding[achar]]));
+ compileCharString(font.glyphs[gid], js, font);
+ js.push('c.restore();');
+
+ gid = lookupCmap(font.cmap, String.fromCharCode(
+ font.glyphNameMap[Encodings.StandardEncoding[bchar]]));
+ compileCharString(font.glyphs[gid], js, font);
+ }
+ return;
+ case 18: // hstemhm
+ stems += stack.length >> 1;
+ stackClean = true;
+ break;
+ case 19: // hintmask
+ stems += stack.length >> 1;
+ i += (stems + 7) >> 3;
+ stackClean = true;
+ break;
+ case 20: // cntrmask
+ stems += stack.length >> 1;
+ i += (stems + 7) >> 3;
+ stackClean = true;
+ break;
+ case 21: // rmoveto
+ y += stack.pop();
+ x += stack.pop();
+ moveTo(x, y);
+ stackClean = true;
+ break;
+ case 22: // hmoveto
+ x += stack.pop();
+ moveTo(x, y);
+ stackClean = true;
+ break;
+ case 23: // vstemhm
+ stems += stack.length >> 1;
+ stackClean = true;
+ break;
+ case 24: // rcurveline
+ while (stack.length > 2) {
+ xa = x + stack.shift(); ya = y + stack.shift();
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb + stack.shift(); y = yb + stack.shift();
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ }
+ x += stack.shift();
+ y += stack.shift();
+ lineTo(x, y);
+ break;
+ case 25: // rlinecurve
+ while (stack.length > 6) {
+ x += stack.shift();
+ y += stack.shift();
+ lineTo(x, y);
+ }
+ xa = x + stack.shift(); ya = y + stack.shift();
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb + stack.shift(); y = yb + stack.shift();
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ break;
+ case 26: // vvcurveto
+ if (stack.length % 2) {
+ x += stack.shift();
+ }
+ while (stack.length > 0) {
+ xa = x; ya = y + stack.shift();
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb; y = yb + stack.shift();
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ }
+ break;
+ case 27: // hhcurveto
+ if (stack.length % 2) {
+ y += stack.shift();
+ }
+ while (stack.length > 0) {
+ xa = x + stack.shift(); ya = y;
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb + stack.shift(); y = yb;
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ }
+ break;
+ case 28:
+ stack.push(((code[i] << 24) | (code[i + 1] << 16)) >> 16);
+ i += 2;
+ break;
+ case 29: // callgsubr
+ n = stack.pop() + font.gsubrsBias;
+ subrCode = font.gsubrs[n];
+ if (subrCode) {
+ parse(subrCode);
+ }
+ break;
+ case 30: // vhcurveto
+ while (stack.length > 0) {
+ xa = x; ya = y + stack.shift();
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb + stack.shift();
+ y = yb + (stack.length === 1 ? stack.shift() : 0);
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ if (stack.length === 0) {
+ break;
+ }
+
+ xa = x + stack.shift(); ya = y;
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ y = yb + stack.shift();
+ x = xb + (stack.length === 1 ? stack.shift() : 0);
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ }
+ break;
+ case 31: // hvcurveto
+ while (stack.length > 0) {
+ xa = x + stack.shift(); ya = y;
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ y = yb + stack.shift();
+ x = xb + (stack.length === 1 ? stack.shift() : 0);
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ if (stack.length === 0) {
+ break;
+ }
+
+ xa = x; ya = y + stack.shift();
+ xb = xa + stack.shift(); yb = ya + stack.shift();
+ x = xb + stack.shift();
+ y = yb + (stack.length === 1 ? stack.shift() : 0);
+ bezierCurveTo(xa, ya, xb, yb, x, y);
+ }
+ break;
+ default:
+ if (v < 32) {
+ error('unknown operator: ' + v);
+ }
+ if (v < 247) {
+ stack.push(v - 139);
+ } else if (v < 251) {
+ stack.push((v - 247) * 256 + code[i++] + 108);
+ } else if (v < 255) {
+ stack.push(-(v - 251) * 256 - code[i++] - 108);
+ } else {
+ stack.push(((code[i] << 24) | (code[i + 1] << 16) |
+ (code[i + 2] << 8) | code[i + 3]) / 65536);
+ i += 4;
+ }
+ break;
+ }
+ if (stackClean) {
+ stack.length = 0;
+ }
+ }
+ }
+ parse(code);
+ }
+
+ var noop = '';
+
+ function CompiledFont(fontMatrix) {
+ this.compiledGlyphs = {};
+ this.fontMatrix = fontMatrix;
+ }
+ CompiledFont.prototype = {
+ getPathJs: function (unicode) {
+ var gid = lookupCmap(this.cmap, unicode);
+ var fn = this.compiledGlyphs[gid];
+ if (!fn) {
+ this.compiledGlyphs[gid] = fn = this.compileGlyph(this.glyphs[gid]);
+ }
+ return fn;
+ },
+
+ compileGlyph: function (code) {
+ if (!code || code.length === 0 || code[0] === 14) {
+ return noop;
+ }
+
+ var js = [];
+ js.push('c.save();');
+ js.push('c.transform(' + this.fontMatrix.join(',') + ');');
+ js.push('c.scale(size, -size);');
+
+ this.compileGlyphImpl(code, js);
+
+ js.push('c.restore();');
+
+ return js.join('\n');
+ },
+
+ compileGlyphImpl: function () {
+ error('Children classes should implement this.');
+ },
+
+ hasBuiltPath: function (unicode) {
+ var gid = lookupCmap(this.cmap, unicode);
+ return gid in this.compiledGlyphs;
+ }
+ };
+
+ function TrueTypeCompiled(glyphs, cmap, fontMatrix) {
+ fontMatrix = fontMatrix || [0.000488, 0, 0, 0.000488, 0, 0];
+ CompiledFont.call(this, fontMatrix);
+
+ this.glyphs = glyphs;
+ this.cmap = cmap;
+
+ this.compiledGlyphs = [];
+ }
+
+ Util.inherit(TrueTypeCompiled, CompiledFont, {
+ compileGlyphImpl: function (code, js) {
+ compileGlyf(code, js, this);
+ }
+ });
+
+ function Type2Compiled(cffInfo, cmap, fontMatrix, glyphNameMap) {
+ fontMatrix = fontMatrix || [0.001, 0, 0, 0.001, 0, 0];
+ CompiledFont.call(this, fontMatrix);
+ this.glyphs = cffInfo.glyphs;
+ this.gsubrs = cffInfo.gsubrs || [];
+ this.subrs = cffInfo.subrs || [];
+ this.cmap = cmap;
+ this.glyphNameMap = glyphNameMap || GlyphsUnicode;
+
+ this.compiledGlyphs = [];
+ this.gsubrsBias = (this.gsubrs.length < 1240 ?
+ 107 : (this.gsubrs.length < 33900 ? 1131 : 32768));
+ this.subrsBias = (this.subrs.length < 1240 ?
+ 107 : (this.subrs.length < 33900 ? 1131 : 32768));
+ }
+
+ Util.inherit(Type2Compiled, CompiledFont, {
+ compileGlyphImpl: function (code, js) {
+ compileCharString(code, js, this);
+ }
+ });
+
+
+ return {
+ create: function FontRendererFactory_create(font) {
+ var data = new Uint8Array(font.data);
+ var cmap, glyf, loca, cff, indexToLocFormat, unitsPerEm;
+ var numTables = getUshort(data, 4);
+ for (var i = 0, p = 12; i < numTables; i++, p += 16) {
+ var tag = bytesToString(data.subarray(p, p + 4));
+ var offset = getLong(data, p + 8);
+ var length = getLong(data, p + 12);
+ switch (tag) {
+ case 'cmap':
+ cmap = parseCmap(data, offset, offset + length);
+ break;
+ case 'glyf':
+ glyf = data.subarray(offset, offset + length);
+ break;
+ case 'loca':
+ loca = data.subarray(offset, offset + length);
+ break;
+ case 'head':
+ unitsPerEm = getUshort(data, offset + 18);
+ indexToLocFormat = getUshort(data, offset + 50);
+ break;
+ case 'CFF ':
+ cff = parseCff(data, offset, offset + length);
+ break;
+ }
+ }
+
+ if (glyf) {
+ var fontMatrix = (!unitsPerEm ? font.fontMatrix :
+ [1 / unitsPerEm, 0, 0, 1 / unitsPerEm, 0, 0]);
+ return new TrueTypeCompiled(
+ parseGlyfTable(glyf, loca, indexToLocFormat), cmap, fontMatrix);
+ } else {
+ return new Type2Compiled(cff, cmap, font.fontMatrix, font.glyphNameMap);
+ }
+ }
+ };
+})();
+
+
+var GlyphsUnicode = {
+ A: 0x0041,
+ AE: 0x00C6,
+ AEacute: 0x01FC,
+ AEmacron: 0x01E2,
+ AEsmall: 0xF7E6,
+ Aacute: 0x00C1,
+ Aacutesmall: 0xF7E1,
+ Abreve: 0x0102,
+ Abreveacute: 0x1EAE,
+ Abrevecyrillic: 0x04D0,
+ Abrevedotbelow: 0x1EB6,
+ Abrevegrave: 0x1EB0,
+ Abrevehookabove: 0x1EB2,
+ Abrevetilde: 0x1EB4,
+ Acaron: 0x01CD,
+ Acircle: 0x24B6,
+ Acircumflex: 0x00C2,
+ Acircumflexacute: 0x1EA4,
+ Acircumflexdotbelow: 0x1EAC,
+ Acircumflexgrave: 0x1EA6,
+ Acircumflexhookabove: 0x1EA8,
+ Acircumflexsmall: 0xF7E2,
+ Acircumflextilde: 0x1EAA,
+ Acute: 0xF6C9,
+ Acutesmall: 0xF7B4,
+ Acyrillic: 0x0410,
+ Adblgrave: 0x0200,
+ Adieresis: 0x00C4,
+ Adieresiscyrillic: 0x04D2,
+ Adieresismacron: 0x01DE,
+ Adieresissmall: 0xF7E4,
+ Adotbelow: 0x1EA0,
+ Adotmacron: 0x01E0,
+ Agrave: 0x00C0,
+ Agravesmall: 0xF7E0,
+ Ahookabove: 0x1EA2,
+ Aiecyrillic: 0x04D4,
+ Ainvertedbreve: 0x0202,
+ Alpha: 0x0391,
+ Alphatonos: 0x0386,
+ Amacron: 0x0100,
+ Amonospace: 0xFF21,
+ Aogonek: 0x0104,
+ Aring: 0x00C5,
+ Aringacute: 0x01FA,
+ Aringbelow: 0x1E00,
+ Aringsmall: 0xF7E5,
+ Asmall: 0xF761,
+ Atilde: 0x00C3,
+ Atildesmall: 0xF7E3,
+ Aybarmenian: 0x0531,
+ B: 0x0042,
+ Bcircle: 0x24B7,
+ Bdotaccent: 0x1E02,
+ Bdotbelow: 0x1E04,
+ Becyrillic: 0x0411,
+ Benarmenian: 0x0532,
+ Beta: 0x0392,
+ Bhook: 0x0181,
+ Blinebelow: 0x1E06,
+ Bmonospace: 0xFF22,
+ Brevesmall: 0xF6F4,
+ Bsmall: 0xF762,
+ Btopbar: 0x0182,
+ C: 0x0043,
+ Caarmenian: 0x053E,
+ Cacute: 0x0106,
+ Caron: 0xF6CA,
+ Caronsmall: 0xF6F5,
+ Ccaron: 0x010C,
+ Ccedilla: 0x00C7,
+ Ccedillaacute: 0x1E08,
+ Ccedillasmall: 0xF7E7,
+ Ccircle: 0x24B8,
+ Ccircumflex: 0x0108,
+ Cdot: 0x010A,
+ Cdotaccent: 0x010A,
+ Cedillasmall: 0xF7B8,
+ Chaarmenian: 0x0549,
+ Cheabkhasiancyrillic: 0x04BC,
+ Checyrillic: 0x0427,
+ Chedescenderabkhasiancyrillic: 0x04BE,
+ Chedescendercyrillic: 0x04B6,
+ Chedieresiscyrillic: 0x04F4,
+ Cheharmenian: 0x0543,
+ Chekhakassiancyrillic: 0x04CB,
+ Cheverticalstrokecyrillic: 0x04B8,
+ Chi: 0x03A7,
+ Chook: 0x0187,
+ Circumflexsmall: 0xF6F6,
+ Cmonospace: 0xFF23,
+ Coarmenian: 0x0551,
+ Csmall: 0xF763,
+ D: 0x0044,
+ DZ: 0x01F1,
+ DZcaron: 0x01C4,
+ Daarmenian: 0x0534,
+ Dafrican: 0x0189,
+ Dcaron: 0x010E,
+ Dcedilla: 0x1E10,
+ Dcircle: 0x24B9,
+ Dcircumflexbelow: 0x1E12,
+ Dcroat: 0x0110,
+ Ddotaccent: 0x1E0A,
+ Ddotbelow: 0x1E0C,
+ Decyrillic: 0x0414,
+ Deicoptic: 0x03EE,
+ Delta: 0x2206,
+ Deltagreek: 0x0394,
+ Dhook: 0x018A,
+ Dieresis: 0xF6CB,
+ DieresisAcute: 0xF6CC,
+ DieresisGrave: 0xF6CD,
+ Dieresissmall: 0xF7A8,
+ Digammagreek: 0x03DC,
+ Djecyrillic: 0x0402,
+ Dlinebelow: 0x1E0E,
+ Dmonospace: 0xFF24,
+ Dotaccentsmall: 0xF6F7,
+ Dslash: 0x0110,
+ Dsmall: 0xF764,
+ Dtopbar: 0x018B,
+ Dz: 0x01F2,
+ Dzcaron: 0x01C5,
+ Dzeabkhasiancyrillic: 0x04E0,
+ Dzecyrillic: 0x0405,
+ Dzhecyrillic: 0x040F,
+ E: 0x0045,
+ Eacute: 0x00C9,
+ Eacutesmall: 0xF7E9,
+ Ebreve: 0x0114,
+ Ecaron: 0x011A,
+ Ecedillabreve: 0x1E1C,
+ Echarmenian: 0x0535,
+ Ecircle: 0x24BA,
+ Ecircumflex: 0x00CA,
+ Ecircumflexacute: 0x1EBE,
+ Ecircumflexbelow: 0x1E18,
+ Ecircumflexdotbelow: 0x1EC6,
+ Ecircumflexgrave: 0x1EC0,
+ Ecircumflexhookabove: 0x1EC2,
+ Ecircumflexsmall: 0xF7EA,
+ Ecircumflextilde: 0x1EC4,
+ Ecyrillic: 0x0404,
+ Edblgrave: 0x0204,
+ Edieresis: 0x00CB,
+ Edieresissmall: 0xF7EB,
+ Edot: 0x0116,
+ Edotaccent: 0x0116,
+ Edotbelow: 0x1EB8,
+ Efcyrillic: 0x0424,
+ Egrave: 0x00C8,
+ Egravesmall: 0xF7E8,
+ Eharmenian: 0x0537,
+ Ehookabove: 0x1EBA,
+ Eightroman: 0x2167,
+ Einvertedbreve: 0x0206,
+ Eiotifiedcyrillic: 0x0464,
+ Elcyrillic: 0x041B,
+ Elevenroman: 0x216A,
+ Emacron: 0x0112,
+ Emacronacute: 0x1E16,
+ Emacrongrave: 0x1E14,
+ Emcyrillic: 0x041C,
+ Emonospace: 0xFF25,
+ Encyrillic: 0x041D,
+ Endescendercyrillic: 0x04A2,
+ Eng: 0x014A,
+ Enghecyrillic: 0x04A4,
+ Enhookcyrillic: 0x04C7,
+ Eogonek: 0x0118,
+ Eopen: 0x0190,
+ Epsilon: 0x0395,
+ Epsilontonos: 0x0388,
+ Ercyrillic: 0x0420,
+ Ereversed: 0x018E,
+ Ereversedcyrillic: 0x042D,
+ Escyrillic: 0x0421,
+ Esdescendercyrillic: 0x04AA,
+ Esh: 0x01A9,
+ Esmall: 0xF765,
+ Eta: 0x0397,
+ Etarmenian: 0x0538,
+ Etatonos: 0x0389,
+ Eth: 0x00D0,
+ Ethsmall: 0xF7F0,
+ Etilde: 0x1EBC,
+ Etildebelow: 0x1E1A,
+ Euro: 0x20AC,
+ Ezh: 0x01B7,
+ Ezhcaron: 0x01EE,
+ Ezhreversed: 0x01B8,
+ F: 0x0046,
+ Fcircle: 0x24BB,
+ Fdotaccent: 0x1E1E,
+ Feharmenian: 0x0556,
+ Feicoptic: 0x03E4,
+ Fhook: 0x0191,
+ Fitacyrillic: 0x0472,
+ Fiveroman: 0x2164,
+ Fmonospace: 0xFF26,
+ Fourroman: 0x2163,
+ Fsmall: 0xF766,
+ G: 0x0047,
+ GBsquare: 0x3387,
+ Gacute: 0x01F4,
+ Gamma: 0x0393,
+ Gammaafrican: 0x0194,
+ Gangiacoptic: 0x03EA,
+ Gbreve: 0x011E,
+ Gcaron: 0x01E6,
+ Gcedilla: 0x0122,
+ Gcircle: 0x24BC,
+ Gcircumflex: 0x011C,
+ Gcommaaccent: 0x0122,
+ Gdot: 0x0120,
+ Gdotaccent: 0x0120,
+ Gecyrillic: 0x0413,
+ Ghadarmenian: 0x0542,
+ Ghemiddlehookcyrillic: 0x0494,
+ Ghestrokecyrillic: 0x0492,
+ Gheupturncyrillic: 0x0490,
+ Ghook: 0x0193,
+ Gimarmenian: 0x0533,
+ Gjecyrillic: 0x0403,
+ Gmacron: 0x1E20,
+ Gmonospace: 0xFF27,
+ Grave: 0xF6CE,
+ Gravesmall: 0xF760,
+ Gsmall: 0xF767,
+ Gsmallhook: 0x029B,
+ Gstroke: 0x01E4,
+ H: 0x0048,
+ H18533: 0x25CF,
+ H18543: 0x25AA,
+ H18551: 0x25AB,
+ H22073: 0x25A1,
+ HPsquare: 0x33CB,
+ Haabkhasiancyrillic: 0x04A8,
+ Hadescendercyrillic: 0x04B2,
+ Hardsigncyrillic: 0x042A,
+ Hbar: 0x0126,
+ Hbrevebelow: 0x1E2A,
+ Hcedilla: 0x1E28,
+ Hcircle: 0x24BD,
+ Hcircumflex: 0x0124,
+ Hdieresis: 0x1E26,
+ Hdotaccent: 0x1E22,
+ Hdotbelow: 0x1E24,
+ Hmonospace: 0xFF28,
+ Hoarmenian: 0x0540,
+ Horicoptic: 0x03E8,
+ Hsmall: 0xF768,
+ Hungarumlaut: 0xF6CF,
+ Hungarumlautsmall: 0xF6F8,
+ Hzsquare: 0x3390,
+ I: 0x0049,
+ IAcyrillic: 0x042F,
+ IJ: 0x0132,
+ IUcyrillic: 0x042E,
+ Iacute: 0x00CD,
+ Iacutesmall: 0xF7ED,
+ Ibreve: 0x012C,
+ Icaron: 0x01CF,
+ Icircle: 0x24BE,
+ Icircumflex: 0x00CE,
+ Icircumflexsmall: 0xF7EE,
+ Icyrillic: 0x0406,
+ Idblgrave: 0x0208,
+ Idieresis: 0x00CF,
+ Idieresisacute: 0x1E2E,
+ Idieresiscyrillic: 0x04E4,
+ Idieresissmall: 0xF7EF,
+ Idot: 0x0130,
+ Idotaccent: 0x0130,
+ Idotbelow: 0x1ECA,
+ Iebrevecyrillic: 0x04D6,
+ Iecyrillic: 0x0415,
+ Ifraktur: 0x2111,
+ Igrave: 0x00CC,
+ Igravesmall: 0xF7EC,
+ Ihookabove: 0x1EC8,
+ Iicyrillic: 0x0418,
+ Iinvertedbreve: 0x020A,
+ Iishortcyrillic: 0x0419,
+ Imacron: 0x012A,
+ Imacroncyrillic: 0x04E2,
+ Imonospace: 0xFF29,
+ Iniarmenian: 0x053B,
+ Iocyrillic: 0x0401,
+ Iogonek: 0x012E,
+ Iota: 0x0399,
+ Iotaafrican: 0x0196,
+ Iotadieresis: 0x03AA,
+ Iotatonos: 0x038A,
+ Ismall: 0xF769,
+ Istroke: 0x0197,
+ Itilde: 0x0128,
+ Itildebelow: 0x1E2C,
+ Izhitsacyrillic: 0x0474,
+ Izhitsadblgravecyrillic: 0x0476,
+ J: 0x004A,
+ Jaarmenian: 0x0541,
+ Jcircle: 0x24BF,
+ Jcircumflex: 0x0134,
+ Jecyrillic: 0x0408,
+ Jheharmenian: 0x054B,
+ Jmonospace: 0xFF2A,
+ Jsmall: 0xF76A,
+ K: 0x004B,
+ KBsquare: 0x3385,
+ KKsquare: 0x33CD,
+ Kabashkircyrillic: 0x04A0,
+ Kacute: 0x1E30,
+ Kacyrillic: 0x041A,
+ Kadescendercyrillic: 0x049A,
+ Kahookcyrillic: 0x04C3,
+ Kappa: 0x039A,
+ Kastrokecyrillic: 0x049E,
+ Kaverticalstrokecyrillic: 0x049C,
+ Kcaron: 0x01E8,
+ Kcedilla: 0x0136,
+ Kcircle: 0x24C0,
+ Kcommaaccent: 0x0136,
+ Kdotbelow: 0x1E32,
+ Keharmenian: 0x0554,
+ Kenarmenian: 0x053F,
+ Khacyrillic: 0x0425,
+ Kheicoptic: 0x03E6,
+ Khook: 0x0198,
+ Kjecyrillic: 0x040C,
+ Klinebelow: 0x1E34,
+ Kmonospace: 0xFF2B,
+ Koppacyrillic: 0x0480,
+ Koppagreek: 0x03DE,
+ Ksicyrillic: 0x046E,
+ Ksmall: 0xF76B,
+ L: 0x004C,
+ LJ: 0x01C7,
+ LL: 0xF6BF,
+ Lacute: 0x0139,
+ Lambda: 0x039B,
+ Lcaron: 0x013D,
+ Lcedilla: 0x013B,
+ Lcircle: 0x24C1,
+ Lcircumflexbelow: 0x1E3C,
+ Lcommaaccent: 0x013B,
+ Ldot: 0x013F,
+ Ldotaccent: 0x013F,
+ Ldotbelow: 0x1E36,
+ Ldotbelowmacron: 0x1E38,
+ Liwnarmenian: 0x053C,
+ Lj: 0x01C8,
+ Ljecyrillic: 0x0409,
+ Llinebelow: 0x1E3A,
+ Lmonospace: 0xFF2C,
+ Lslash: 0x0141,
+ Lslashsmall: 0xF6F9,
+ Lsmall: 0xF76C,
+ M: 0x004D,
+ MBsquare: 0x3386,
+ Macron: 0xF6D0,
+ Macronsmall: 0xF7AF,
+ Macute: 0x1E3E,
+ Mcircle: 0x24C2,
+ Mdotaccent: 0x1E40,
+ Mdotbelow: 0x1E42,
+ Menarmenian: 0x0544,
+ Mmonospace: 0xFF2D,
+ Msmall: 0xF76D,
+ Mturned: 0x019C,
+ Mu: 0x039C,
+ N: 0x004E,
+ NJ: 0x01CA,
+ Nacute: 0x0143,
+ Ncaron: 0x0147,
+ Ncedilla: 0x0145,
+ Ncircle: 0x24C3,
+ Ncircumflexbelow: 0x1E4A,
+ Ncommaaccent: 0x0145,
+ Ndotaccent: 0x1E44,
+ Ndotbelow: 0x1E46,
+ Nhookleft: 0x019D,
+ Nineroman: 0x2168,
+ Nj: 0x01CB,
+ Njecyrillic: 0x040A,
+ Nlinebelow: 0x1E48,
+ Nmonospace: 0xFF2E,
+ Nowarmenian: 0x0546,
+ Nsmall: 0xF76E,
+ Ntilde: 0x00D1,
+ Ntildesmall: 0xF7F1,
+ Nu: 0x039D,
+ O: 0x004F,
+ OE: 0x0152,
+ OEsmall: 0xF6FA,
+ Oacute: 0x00D3,
+ Oacutesmall: 0xF7F3,
+ Obarredcyrillic: 0x04E8,
+ Obarreddieresiscyrillic: 0x04EA,
+ Obreve: 0x014E,
+ Ocaron: 0x01D1,
+ Ocenteredtilde: 0x019F,
+ Ocircle: 0x24C4,
+ Ocircumflex: 0x00D4,
+ Ocircumflexacute: 0x1ED0,
+ Ocircumflexdotbelow: 0x1ED8,
+ Ocircumflexgrave: 0x1ED2,
+ Ocircumflexhookabove: 0x1ED4,
+ Ocircumflexsmall: 0xF7F4,
+ Ocircumflextilde: 0x1ED6,
+ Ocyrillic: 0x041E,
+ Odblacute: 0x0150,
+ Odblgrave: 0x020C,
+ Odieresis: 0x00D6,
+ Odieresiscyrillic: 0x04E6,
+ Odieresissmall: 0xF7F6,
+ Odotbelow: 0x1ECC,
+ Ogoneksmall: 0xF6FB,
+ Ograve: 0x00D2,
+ Ogravesmall: 0xF7F2,
+ Oharmenian: 0x0555,
+ Ohm: 0x2126,
+ Ohookabove: 0x1ECE,
+ Ohorn: 0x01A0,
+ Ohornacute: 0x1EDA,
+ Ohorndotbelow: 0x1EE2,
+ Ohorngrave: 0x1EDC,
+ Ohornhookabove: 0x1EDE,
+ Ohorntilde: 0x1EE0,
+ Ohungarumlaut: 0x0150,
+ Oi: 0x01A2,
+ Oinvertedbreve: 0x020E,
+ Omacron: 0x014C,
+ Omacronacute: 0x1E52,
+ Omacrongrave: 0x1E50,
+ Omega: 0x2126,
+ Omegacyrillic: 0x0460,
+ Omegagreek: 0x03A9,
+ Omegaroundcyrillic: 0x047A,
+ Omegatitlocyrillic: 0x047C,
+ Omegatonos: 0x038F,
+ Omicron: 0x039F,
+ Omicrontonos: 0x038C,
+ Omonospace: 0xFF2F,
+ Oneroman: 0x2160,
+ Oogonek: 0x01EA,
+ Oogonekmacron: 0x01EC,
+ Oopen: 0x0186,
+ Oslash: 0x00D8,
+ Oslashacute: 0x01FE,
+ Oslashsmall: 0xF7F8,
+ Osmall: 0xF76F,
+ Ostrokeacute: 0x01FE,
+ Otcyrillic: 0x047E,
+ Otilde: 0x00D5,
+ Otildeacute: 0x1E4C,
+ Otildedieresis: 0x1E4E,
+ Otildesmall: 0xF7F5,
+ P: 0x0050,
+ Pacute: 0x1E54,
+ Pcircle: 0x24C5,
+ Pdotaccent: 0x1E56,
+ Pecyrillic: 0x041F,
+ Peharmenian: 0x054A,
+ Pemiddlehookcyrillic: 0x04A6,
+ Phi: 0x03A6,
+ Phook: 0x01A4,
+ Pi: 0x03A0,
+ Piwrarmenian: 0x0553,
+ Pmonospace: 0xFF30,
+ Psi: 0x03A8,
+ Psicyrillic: 0x0470,
+ Psmall: 0xF770,
+ Q: 0x0051,
+ Qcircle: 0x24C6,
+ Qmonospace: 0xFF31,
+ Qsmall: 0xF771,
+ R: 0x0052,
+ Raarmenian: 0x054C,
+ Racute: 0x0154,
+ Rcaron: 0x0158,
+ Rcedilla: 0x0156,
+ Rcircle: 0x24C7,
+ Rcommaaccent: 0x0156,
+ Rdblgrave: 0x0210,
+ Rdotaccent: 0x1E58,
+ Rdotbelow: 0x1E5A,
+ Rdotbelowmacron: 0x1E5C,
+ Reharmenian: 0x0550,
+ Rfraktur: 0x211C,
+ Rho: 0x03A1,
+ Ringsmall: 0xF6FC,
+ Rinvertedbreve: 0x0212,
+ Rlinebelow: 0x1E5E,
+ Rmonospace: 0xFF32,
+ Rsmall: 0xF772,
+ Rsmallinverted: 0x0281,
+ Rsmallinvertedsuperior: 0x02B6,
+ S: 0x0053,
+ SF010000: 0x250C,
+ SF020000: 0x2514,
+ SF030000: 0x2510,
+ SF040000: 0x2518,
+ SF050000: 0x253C,
+ SF060000: 0x252C,
+ SF070000: 0x2534,
+ SF080000: 0x251C,
+ SF090000: 0x2524,
+ SF100000: 0x2500,
+ SF110000: 0x2502,
+ SF190000: 0x2561,
+ SF200000: 0x2562,
+ SF210000: 0x2556,
+ SF220000: 0x2555,
+ SF230000: 0x2563,
+ SF240000: 0x2551,
+ SF250000: 0x2557,
+ SF260000: 0x255D,
+ SF270000: 0x255C,
+ SF280000: 0x255B,
+ SF360000: 0x255E,
+ SF370000: 0x255F,
+ SF380000: 0x255A,
+ SF390000: 0x2554,
+ SF400000: 0x2569,
+ SF410000: 0x2566,
+ SF420000: 0x2560,
+ SF430000: 0x2550,
+ SF440000: 0x256C,
+ SF450000: 0x2567,
+ SF460000: 0x2568,
+ SF470000: 0x2564,
+ SF480000: 0x2565,
+ SF490000: 0x2559,
+ SF500000: 0x2558,
+ SF510000: 0x2552,
+ SF520000: 0x2553,
+ SF530000: 0x256B,
+ SF540000: 0x256A,
+ Sacute: 0x015A,
+ Sacutedotaccent: 0x1E64,
+ Sampigreek: 0x03E0,
+ Scaron: 0x0160,
+ Scarondotaccent: 0x1E66,
+ Scaronsmall: 0xF6FD,
+ Scedilla: 0x015E,
+ Schwa: 0x018F,
+ Schwacyrillic: 0x04D8,
+ Schwadieresiscyrillic: 0x04DA,
+ Scircle: 0x24C8,
+ Scircumflex: 0x015C,
+ Scommaaccent: 0x0218,
+ Sdotaccent: 0x1E60,
+ Sdotbelow: 0x1E62,
+ Sdotbelowdotaccent: 0x1E68,
+ Seharmenian: 0x054D,
+ Sevenroman: 0x2166,
+ Shaarmenian: 0x0547,
+ Shacyrillic: 0x0428,
+ Shchacyrillic: 0x0429,
+ Sheicoptic: 0x03E2,
+ Shhacyrillic: 0x04BA,
+ Shimacoptic: 0x03EC,
+ Sigma: 0x03A3,
+ Sixroman: 0x2165,
+ Smonospace: 0xFF33,
+ Softsigncyrillic: 0x042C,
+ Ssmall: 0xF773,
+ Stigmagreek: 0x03DA,
+ T: 0x0054,
+ Tau: 0x03A4,
+ Tbar: 0x0166,
+ Tcaron: 0x0164,
+ Tcedilla: 0x0162,
+ Tcircle: 0x24C9,
+ Tcircumflexbelow: 0x1E70,
+ Tcommaaccent: 0x0162,
+ Tdotaccent: 0x1E6A,
+ Tdotbelow: 0x1E6C,
+ Tecyrillic: 0x0422,
+ Tedescendercyrillic: 0x04AC,
+ Tenroman: 0x2169,
+ Tetsecyrillic: 0x04B4,
+ Theta: 0x0398,
+ Thook: 0x01AC,
+ Thorn: 0x00DE,
+ Thornsmall: 0xF7FE,
+ Threeroman: 0x2162,
+ Tildesmall: 0xF6FE,
+ Tiwnarmenian: 0x054F,
+ Tlinebelow: 0x1E6E,
+ Tmonospace: 0xFF34,
+ Toarmenian: 0x0539,
+ Tonefive: 0x01BC,
+ Tonesix: 0x0184,
+ Tonetwo: 0x01A7,
+ Tretroflexhook: 0x01AE,
+ Tsecyrillic: 0x0426,
+ Tshecyrillic: 0x040B,
+ Tsmall: 0xF774,
+ Twelveroman: 0x216B,
+ Tworoman: 0x2161,
+ U: 0x0055,
+ Uacute: 0x00DA,
+ Uacutesmall: 0xF7FA,
+ Ubreve: 0x016C,
+ Ucaron: 0x01D3,
+ Ucircle: 0x24CA,
+ Ucircumflex: 0x00DB,
+ Ucircumflexbelow: 0x1E76,
+ Ucircumflexsmall: 0xF7FB,
+ Ucyrillic: 0x0423,
+ Udblacute: 0x0170,
+ Udblgrave: 0x0214,
+ Udieresis: 0x00DC,
+ Udieresisacute: 0x01D7,
+ Udieresisbelow: 0x1E72,
+ Udieresiscaron: 0x01D9,
+ Udieresiscyrillic: 0x04F0,
+ Udieresisgrave: 0x01DB,
+ Udieresismacron: 0x01D5,
+ Udieresissmall: 0xF7FC,
+ Udotbelow: 0x1EE4,
+ Ugrave: 0x00D9,
+ Ugravesmall: 0xF7F9,
+ Uhookabove: 0x1EE6,
+ Uhorn: 0x01AF,
+ Uhornacute: 0x1EE8,
+ Uhorndotbelow: 0x1EF0,
+ Uhorngrave: 0x1EEA,
+ Uhornhookabove: 0x1EEC,
+ Uhorntilde: 0x1EEE,
+ Uhungarumlaut: 0x0170,
+ Uhungarumlautcyrillic: 0x04F2,
+ Uinvertedbreve: 0x0216,
+ Ukcyrillic: 0x0478,
+ Umacron: 0x016A,
+ Umacroncyrillic: 0x04EE,
+ Umacrondieresis: 0x1E7A,
+ Umonospace: 0xFF35,
+ Uogonek: 0x0172,
+ Upsilon: 0x03A5,
+ Upsilon1: 0x03D2,
+ Upsilonacutehooksymbolgreek: 0x03D3,
+ Upsilonafrican: 0x01B1,
+ Upsilondieresis: 0x03AB,
+ Upsilondieresishooksymbolgreek: 0x03D4,
+ Upsilonhooksymbol: 0x03D2,
+ Upsilontonos: 0x038E,
+ Uring: 0x016E,
+ Ushortcyrillic: 0x040E,
+ Usmall: 0xF775,
+ Ustraightcyrillic: 0x04AE,
+ Ustraightstrokecyrillic: 0x04B0,
+ Utilde: 0x0168,
+ Utildeacute: 0x1E78,
+ Utildebelow: 0x1E74,
+ V: 0x0056,
+ Vcircle: 0x24CB,
+ Vdotbelow: 0x1E7E,
+ Vecyrillic: 0x0412,
+ Vewarmenian: 0x054E,
+ Vhook: 0x01B2,
+ Vmonospace: 0xFF36,
+ Voarmenian: 0x0548,
+ Vsmall: 0xF776,
+ Vtilde: 0x1E7C,
+ W: 0x0057,
+ Wacute: 0x1E82,
+ Wcircle: 0x24CC,
+ Wcircumflex: 0x0174,
+ Wdieresis: 0x1E84,
+ Wdotaccent: 0x1E86,
+ Wdotbelow: 0x1E88,
+ Wgrave: 0x1E80,
+ Wmonospace: 0xFF37,
+ Wsmall: 0xF777,
+ X: 0x0058,
+ Xcircle: 0x24CD,
+ Xdieresis: 0x1E8C,
+ Xdotaccent: 0x1E8A,
+ Xeharmenian: 0x053D,
+ Xi: 0x039E,
+ Xmonospace: 0xFF38,
+ Xsmall: 0xF778,
+ Y: 0x0059,
+ Yacute: 0x00DD,
+ Yacutesmall: 0xF7FD,
+ Yatcyrillic: 0x0462,
+ Ycircle: 0x24CE,
+ Ycircumflex: 0x0176,
+ Ydieresis: 0x0178,
+ Ydieresissmall: 0xF7FF,
+ Ydotaccent: 0x1E8E,
+ Ydotbelow: 0x1EF4,
+ Yericyrillic: 0x042B,
+ Yerudieresiscyrillic: 0x04F8,
+ Ygrave: 0x1EF2,
+ Yhook: 0x01B3,
+ Yhookabove: 0x1EF6,
+ Yiarmenian: 0x0545,
+ Yicyrillic: 0x0407,
+ Yiwnarmenian: 0x0552,
+ Ymonospace: 0xFF39,
+ Ysmall: 0xF779,
+ Ytilde: 0x1EF8,
+ Yusbigcyrillic: 0x046A,
+ Yusbigiotifiedcyrillic: 0x046C,
+ Yuslittlecyrillic: 0x0466,
+ Yuslittleiotifiedcyrillic: 0x0468,
+ Z: 0x005A,
+ Zaarmenian: 0x0536,
+ Zacute: 0x0179,
+ Zcaron: 0x017D,
+ Zcaronsmall: 0xF6FF,
+ Zcircle: 0x24CF,
+ Zcircumflex: 0x1E90,
+ Zdot: 0x017B,
+ Zdotaccent: 0x017B,
+ Zdotbelow: 0x1E92,
+ Zecyrillic: 0x0417,
+ Zedescendercyrillic: 0x0498,
+ Zedieresiscyrillic: 0x04DE,
+ Zeta: 0x0396,
+ Zhearmenian: 0x053A,
+ Zhebrevecyrillic: 0x04C1,
+ Zhecyrillic: 0x0416,
+ Zhedescendercyrillic: 0x0496,
+ Zhedieresiscyrillic: 0x04DC,
+ Zlinebelow: 0x1E94,
+ Zmonospace: 0xFF3A,
+ Zsmall: 0xF77A,
+ Zstroke: 0x01B5,
+ a: 0x0061,
+ aabengali: 0x0986,
+ aacute: 0x00E1,
+ aadeva: 0x0906,
+ aagujarati: 0x0A86,
+ aagurmukhi: 0x0A06,
+ aamatragurmukhi: 0x0A3E,
+ aarusquare: 0x3303,
+ aavowelsignbengali: 0x09BE,
+ aavowelsigndeva: 0x093E,
+ aavowelsigngujarati: 0x0ABE,
+ abbreviationmarkarmenian: 0x055F,
+ abbreviationsigndeva: 0x0970,
+ abengali: 0x0985,
+ abopomofo: 0x311A,
+ abreve: 0x0103,
+ abreveacute: 0x1EAF,
+ abrevecyrillic: 0x04D1,
+ abrevedotbelow: 0x1EB7,
+ abrevegrave: 0x1EB1,
+ abrevehookabove: 0x1EB3,
+ abrevetilde: 0x1EB5,
+ acaron: 0x01CE,
+ acircle: 0x24D0,
+ acircumflex: 0x00E2,
+ acircumflexacute: 0x1EA5,
+ acircumflexdotbelow: 0x1EAD,
+ acircumflexgrave: 0x1EA7,
+ acircumflexhookabove: 0x1EA9,
+ acircumflextilde: 0x1EAB,
+ acute: 0x00B4,
+ acutebelowcmb: 0x0317,
+ acutecmb: 0x0301,
+ acutecomb: 0x0301,
+ acutedeva: 0x0954,
+ acutelowmod: 0x02CF,
+ acutetonecmb: 0x0341,
+ acyrillic: 0x0430,
+ adblgrave: 0x0201,
+ addakgurmukhi: 0x0A71,
+ adeva: 0x0905,
+ adieresis: 0x00E4,
+ adieresiscyrillic: 0x04D3,
+ adieresismacron: 0x01DF,
+ adotbelow: 0x1EA1,
+ adotmacron: 0x01E1,
+ ae: 0x00E6,
+ aeacute: 0x01FD,
+ aekorean: 0x3150,
+ aemacron: 0x01E3,
+ afii00208: 0x2015,
+ afii08941: 0x20A4,
+ afii10017: 0x0410,
+ afii10018: 0x0411,
+ afii10019: 0x0412,
+ afii10020: 0x0413,
+ afii10021: 0x0414,
+ afii10022: 0x0415,
+ afii10023: 0x0401,
+ afii10024: 0x0416,
+ afii10025: 0x0417,
+ afii10026: 0x0418,
+ afii10027: 0x0419,
+ afii10028: 0x041A,
+ afii10029: 0x041B,
+ afii10030: 0x041C,
+ afii10031: 0x041D,
+ afii10032: 0x041E,
+ afii10033: 0x041F,
+ afii10034: 0x0420,
+ afii10035: 0x0421,
+ afii10036: 0x0422,
+ afii10037: 0x0423,
+ afii10038: 0x0424,
+ afii10039: 0x0425,
+ afii10040: 0x0426,
+ afii10041: 0x0427,
+ afii10042: 0x0428,
+ afii10043: 0x0429,
+ afii10044: 0x042A,
+ afii10045: 0x042B,
+ afii10046: 0x042C,
+ afii10047: 0x042D,
+ afii10048: 0x042E,
+ afii10049: 0x042F,
+ afii10050: 0x0490,
+ afii10051: 0x0402,
+ afii10052: 0x0403,
+ afii10053: 0x0404,
+ afii10054: 0x0405,
+ afii10055: 0x0406,
+ afii10056: 0x0407,
+ afii10057: 0x0408,
+ afii10058: 0x0409,
+ afii10059: 0x040A,
+ afii10060: 0x040B,
+ afii10061: 0x040C,
+ afii10062: 0x040E,
+ afii10063: 0xF6C4,
+ afii10064: 0xF6C5,
+ afii10065: 0x0430,
+ afii10066: 0x0431,
+ afii10067: 0x0432,
+ afii10068: 0x0433,
+ afii10069: 0x0434,
+ afii10070: 0x0435,
+ afii10071: 0x0451,
+ afii10072: 0x0436,
+ afii10073: 0x0437,
+ afii10074: 0x0438,
+ afii10075: 0x0439,
+ afii10076: 0x043A,
+ afii10077: 0x043B,
+ afii10078: 0x043C,
+ afii10079: 0x043D,
+ afii10080: 0x043E,
+ afii10081: 0x043F,
+ afii10082: 0x0440,
+ afii10083: 0x0441,
+ afii10084: 0x0442,
+ afii10085: 0x0443,
+ afii10086: 0x0444,
+ afii10087: 0x0445,
+ afii10088: 0x0446,
+ afii10089: 0x0447,
+ afii10090: 0x0448,
+ afii10091: 0x0449,
+ afii10092: 0x044A,
+ afii10093: 0x044B,
+ afii10094: 0x044C,
+ afii10095: 0x044D,
+ afii10096: 0x044E,
+ afii10097: 0x044F,
+ afii10098: 0x0491,
+ afii10099: 0x0452,
+ afii10100: 0x0453,
+ afii10101: 0x0454,
+ afii10102: 0x0455,
+ afii10103: 0x0456,
+ afii10104: 0x0457,
+ afii10105: 0x0458,
+ afii10106: 0x0459,
+ afii10107: 0x045A,
+ afii10108: 0x045B,
+ afii10109: 0x045C,
+ afii10110: 0x045E,
+ afii10145: 0x040F,
+ afii10146: 0x0462,
+ afii10147: 0x0472,
+ afii10148: 0x0474,
+ afii10192: 0xF6C6,
+ afii10193: 0x045F,
+ afii10194: 0x0463,
+ afii10195: 0x0473,
+ afii10196: 0x0475,
+ afii10831: 0xF6C7,
+ afii10832: 0xF6C8,
+ afii10846: 0x04D9,
+ afii299: 0x200E,
+ afii300: 0x200F,
+ afii301: 0x200D,
+ afii57381: 0x066A,
+ afii57388: 0x060C,
+ afii57392: 0x0660,
+ afii57393: 0x0661,
+ afii57394: 0x0662,
+ afii57395: 0x0663,
+ afii57396: 0x0664,
+ afii57397: 0x0665,
+ afii57398: 0x0666,
+ afii57399: 0x0667,
+ afii57400: 0x0668,
+ afii57401: 0x0669,
+ afii57403: 0x061B,
+ afii57407: 0x061F,
+ afii57409: 0x0621,
+ afii57410: 0x0622,
+ afii57411: 0x0623,
+ afii57412: 0x0624,
+ afii57413: 0x0625,
+ afii57414: 0x0626,
+ afii57415: 0x0627,
+ afii57416: 0x0628,
+ afii57417: 0x0629,
+ afii57418: 0x062A,
+ afii57419: 0x062B,
+ afii57420: 0x062C,
+ afii57421: 0x062D,
+ afii57422: 0x062E,
+ afii57423: 0x062F,
+ afii57424: 0x0630,
+ afii57425: 0x0631,
+ afii57426: 0x0632,
+ afii57427: 0x0633,
+ afii57428: 0x0634,
+ afii57429: 0x0635,
+ afii57430: 0x0636,
+ afii57431: 0x0637,
+ afii57432: 0x0638,
+ afii57433: 0x0639,
+ afii57434: 0x063A,
+ afii57440: 0x0640,
+ afii57441: 0x0641,
+ afii57442: 0x0642,
+ afii57443: 0x0643,
+ afii57444: 0x0644,
+ afii57445: 0x0645,
+ afii57446: 0x0646,
+ afii57448: 0x0648,
+ afii57449: 0x0649,
+ afii57450: 0x064A,
+ afii57451: 0x064B,
+ afii57452: 0x064C,
+ afii57453: 0x064D,
+ afii57454: 0x064E,
+ afii57455: 0x064F,
+ afii57456: 0x0650,
+ afii57457: 0x0651,
+ afii57458: 0x0652,
+ afii57470: 0x0647,
+ afii57505: 0x06A4,
+ afii57506: 0x067E,
+ afii57507: 0x0686,
+ afii57508: 0x0698,
+ afii57509: 0x06AF,
+ afii57511: 0x0679,
+ afii57512: 0x0688,
+ afii57513: 0x0691,
+ afii57514: 0x06BA,
+ afii57519: 0x06D2,
+ afii57534: 0x06D5,
+ afii57636: 0x20AA,
+ afii57645: 0x05BE,
+ afii57658: 0x05C3,
+ afii57664: 0x05D0,
+ afii57665: 0x05D1,
+ afii57666: 0x05D2,
+ afii57667: 0x05D3,
+ afii57668: 0x05D4,
+ afii57669: 0x05D5,
+ afii57670: 0x05D6,
+ afii57671: 0x05D7,
+ afii57672: 0x05D8,
+ afii57673: 0x05D9,
+ afii57674: 0x05DA,
+ afii57675: 0x05DB,
+ afii57676: 0x05DC,
+ afii57677: 0x05DD,
+ afii57678: 0x05DE,
+ afii57679: 0x05DF,
+ afii57680: 0x05E0,
+ afii57681: 0x05E1,
+ afii57682: 0x05E2,
+ afii57683: 0x05E3,
+ afii57684: 0x05E4,
+ afii57685: 0x05E5,
+ afii57686: 0x05E6,
+ afii57687: 0x05E7,
+ afii57688: 0x05E8,
+ afii57689: 0x05E9,
+ afii57690: 0x05EA,
+ afii57694: 0xFB2A,
+ afii57695: 0xFB2B,
+ afii57700: 0xFB4B,
+ afii57705: 0xFB1F,
+ afii57716: 0x05F0,
+ afii57717: 0x05F1,
+ afii57718: 0x05F2,
+ afii57723: 0xFB35,
+ afii57793: 0x05B4,
+ afii57794: 0x05B5,
+ afii57795: 0x05B6,
+ afii57796: 0x05BB,
+ afii57797: 0x05B8,
+ afii57798: 0x05B7,
+ afii57799: 0x05B0,
+ afii57800: 0x05B2,
+ afii57801: 0x05B1,
+ afii57802: 0x05B3,
+ afii57803: 0x05C2,
+ afii57804: 0x05C1,
+ afii57806: 0x05B9,
+ afii57807: 0x05BC,
+ afii57839: 0x05BD,
+ afii57841: 0x05BF,
+ afii57842: 0x05C0,
+ afii57929: 0x02BC,
+ afii61248: 0x2105,
+ afii61289: 0x2113,
+ afii61352: 0x2116,
+ afii61573: 0x202C,
+ afii61574: 0x202D,
+ afii61575: 0x202E,
+ afii61664: 0x200C,
+ afii63167: 0x066D,
+ afii64937: 0x02BD,
+ agrave: 0x00E0,
+ agujarati: 0x0A85,
+ agurmukhi: 0x0A05,
+ ahiragana: 0x3042,
+ ahookabove: 0x1EA3,
+ aibengali: 0x0990,
+ aibopomofo: 0x311E,
+ aideva: 0x0910,
+ aiecyrillic: 0x04D5,
+ aigujarati: 0x0A90,
+ aigurmukhi: 0x0A10,
+ aimatragurmukhi: 0x0A48,
+ ainarabic: 0x0639,
+ ainfinalarabic: 0xFECA,
+ aininitialarabic: 0xFECB,
+ ainmedialarabic: 0xFECC,
+ ainvertedbreve: 0x0203,
+ aivowelsignbengali: 0x09C8,
+ aivowelsigndeva: 0x0948,
+ aivowelsigngujarati: 0x0AC8,
+ akatakana: 0x30A2,
+ akatakanahalfwidth: 0xFF71,
+ akorean: 0x314F,
+ alef: 0x05D0,
+ alefarabic: 0x0627,
+ alefdageshhebrew: 0xFB30,
+ aleffinalarabic: 0xFE8E,
+ alefhamzaabovearabic: 0x0623,
+ alefhamzaabovefinalarabic: 0xFE84,
+ alefhamzabelowarabic: 0x0625,
+ alefhamzabelowfinalarabic: 0xFE88,
+ alefhebrew: 0x05D0,
+ aleflamedhebrew: 0xFB4F,
+ alefmaddaabovearabic: 0x0622,
+ alefmaddaabovefinalarabic: 0xFE82,
+ alefmaksuraarabic: 0x0649,
+ alefmaksurafinalarabic: 0xFEF0,
+ alefmaksurainitialarabic: 0xFEF3,
+ alefmaksuramedialarabic: 0xFEF4,
+ alefpatahhebrew: 0xFB2E,
+ alefqamatshebrew: 0xFB2F,
+ aleph: 0x2135,
+ allequal: 0x224C,
+ alpha: 0x03B1,
+ alphatonos: 0x03AC,
+ amacron: 0x0101,
+ amonospace: 0xFF41,
+ ampersand: 0x0026,
+ ampersandmonospace: 0xFF06,
+ ampersandsmall: 0xF726,
+ amsquare: 0x33C2,
+ anbopomofo: 0x3122,
+ angbopomofo: 0x3124,
+ angbracketleft: 0x3008, // This glyph is missing from Adobe's original list.
+ angbracketright: 0x3009, // This glyph is missing from Adobe's original list.
+ angkhankhuthai: 0x0E5A,
+ angle: 0x2220,
+ anglebracketleft: 0x3008,
+ anglebracketleftvertical: 0xFE3F,
+ anglebracketright: 0x3009,
+ anglebracketrightvertical: 0xFE40,
+ angleleft: 0x2329,
+ angleright: 0x232A,
+ angstrom: 0x212B,
+ anoteleia: 0x0387,
+ anudattadeva: 0x0952,
+ anusvarabengali: 0x0982,
+ anusvaradeva: 0x0902,
+ anusvaragujarati: 0x0A82,
+ aogonek: 0x0105,
+ apaatosquare: 0x3300,
+ aparen: 0x249C,
+ apostrophearmenian: 0x055A,
+ apostrophemod: 0x02BC,
+ apple: 0xF8FF,
+ approaches: 0x2250,
+ approxequal: 0x2248,
+ approxequalorimage: 0x2252,
+ approximatelyequal: 0x2245,
+ araeaekorean: 0x318E,
+ araeakorean: 0x318D,
+ arc: 0x2312,
+ arighthalfring: 0x1E9A,
+ aring: 0x00E5,
+ aringacute: 0x01FB,
+ aringbelow: 0x1E01,
+ arrowboth: 0x2194,
+ arrowdashdown: 0x21E3,
+ arrowdashleft: 0x21E0,
+ arrowdashright: 0x21E2,
+ arrowdashup: 0x21E1,
+ arrowdblboth: 0x21D4,
+ arrowdbldown: 0x21D3,
+ arrowdblleft: 0x21D0,
+ arrowdblright: 0x21D2,
+ arrowdblup: 0x21D1,
+ arrowdown: 0x2193,
+ arrowdownleft: 0x2199,
+ arrowdownright: 0x2198,
+ arrowdownwhite: 0x21E9,
+ arrowheaddownmod: 0x02C5,
+ arrowheadleftmod: 0x02C2,
+ arrowheadrightmod: 0x02C3,
+ arrowheadupmod: 0x02C4,
+ arrowhorizex: 0xF8E7,
+ arrowleft: 0x2190,
+ arrowleftdbl: 0x21D0,
+ arrowleftdblstroke: 0x21CD,
+ arrowleftoverright: 0x21C6,
+ arrowleftwhite: 0x21E6,
+ arrowright: 0x2192,
+ arrowrightdblstroke: 0x21CF,
+ arrowrightheavy: 0x279E,
+ arrowrightoverleft: 0x21C4,
+ arrowrightwhite: 0x21E8,
+ arrowtableft: 0x21E4,
+ arrowtabright: 0x21E5,
+ arrowup: 0x2191,
+ arrowupdn: 0x2195,
+ arrowupdnbse: 0x21A8,
+ arrowupdownbase: 0x21A8,
+ arrowupleft: 0x2196,
+ arrowupleftofdown: 0x21C5,
+ arrowupright: 0x2197,
+ arrowupwhite: 0x21E7,
+ arrowvertex: 0xF8E6,
+ asciicircum: 0x005E,
+ asciicircummonospace: 0xFF3E,
+ asciitilde: 0x007E,
+ asciitildemonospace: 0xFF5E,
+ ascript: 0x0251,
+ ascriptturned: 0x0252,
+ asmallhiragana: 0x3041,
+ asmallkatakana: 0x30A1,
+ asmallkatakanahalfwidth: 0xFF67,
+ asterisk: 0x002A,
+ asteriskaltonearabic: 0x066D,
+ asteriskarabic: 0x066D,
+ asteriskmath: 0x2217,
+ asteriskmonospace: 0xFF0A,
+ asterisksmall: 0xFE61,
+ asterism: 0x2042,
+ asuperior: 0xF6E9,
+ asymptoticallyequal: 0x2243,
+ at: 0x0040,
+ atilde: 0x00E3,
+ atmonospace: 0xFF20,
+ atsmall: 0xFE6B,
+ aturned: 0x0250,
+ aubengali: 0x0994,
+ aubopomofo: 0x3120,
+ audeva: 0x0914,
+ augujarati: 0x0A94,
+ augurmukhi: 0x0A14,
+ aulengthmarkbengali: 0x09D7,
+ aumatragurmukhi: 0x0A4C,
+ auvowelsignbengali: 0x09CC,
+ auvowelsigndeva: 0x094C,
+ auvowelsigngujarati: 0x0ACC,
+ avagrahadeva: 0x093D,
+ aybarmenian: 0x0561,
+ ayin: 0x05E2,
+ ayinaltonehebrew: 0xFB20,
+ ayinhebrew: 0x05E2,
+ b: 0x0062,
+ babengali: 0x09AC,
+ backslash: 0x005C,
+ backslashmonospace: 0xFF3C,
+ badeva: 0x092C,
+ bagujarati: 0x0AAC,
+ bagurmukhi: 0x0A2C,
+ bahiragana: 0x3070,
+ bahtthai: 0x0E3F,
+ bakatakana: 0x30D0,
+ bar: 0x007C,
+ barmonospace: 0xFF5C,
+ bbopomofo: 0x3105,
+ bcircle: 0x24D1,
+ bdotaccent: 0x1E03,
+ bdotbelow: 0x1E05,
+ beamedsixteenthnotes: 0x266C,
+ because: 0x2235,
+ becyrillic: 0x0431,
+ beharabic: 0x0628,
+ behfinalarabic: 0xFE90,
+ behinitialarabic: 0xFE91,
+ behiragana: 0x3079,
+ behmedialarabic: 0xFE92,
+ behmeeminitialarabic: 0xFC9F,
+ behmeemisolatedarabic: 0xFC08,
+ behnoonfinalarabic: 0xFC6D,
+ bekatakana: 0x30D9,
+ benarmenian: 0x0562,
+ bet: 0x05D1,
+ beta: 0x03B2,
+ betasymbolgreek: 0x03D0,
+ betdagesh: 0xFB31,
+ betdageshhebrew: 0xFB31,
+ bethebrew: 0x05D1,
+ betrafehebrew: 0xFB4C,
+ bhabengali: 0x09AD,
+ bhadeva: 0x092D,
+ bhagujarati: 0x0AAD,
+ bhagurmukhi: 0x0A2D,
+ bhook: 0x0253,
+ bihiragana: 0x3073,
+ bikatakana: 0x30D3,
+ bilabialclick: 0x0298,
+ bindigurmukhi: 0x0A02,
+ birusquare: 0x3331,
+ blackcircle: 0x25CF,
+ blackdiamond: 0x25C6,
+ blackdownpointingtriangle: 0x25BC,
+ blackleftpointingpointer: 0x25C4,
+ blackleftpointingtriangle: 0x25C0,
+ blacklenticularbracketleft: 0x3010,
+ blacklenticularbracketleftvertical: 0xFE3B,
+ blacklenticularbracketright: 0x3011,
+ blacklenticularbracketrightvertical: 0xFE3C,
+ blacklowerlefttriangle: 0x25E3,
+ blacklowerrighttriangle: 0x25E2,
+ blackrectangle: 0x25AC,
+ blackrightpointingpointer: 0x25BA,
+ blackrightpointingtriangle: 0x25B6,
+ blacksmallsquare: 0x25AA,
+ blacksmilingface: 0x263B,
+ blacksquare: 0x25A0,
+ blackstar: 0x2605,
+ blackupperlefttriangle: 0x25E4,
+ blackupperrighttriangle: 0x25E5,
+ blackuppointingsmalltriangle: 0x25B4,
+ blackuppointingtriangle: 0x25B2,
+ blank: 0x2423,
+ blinebelow: 0x1E07,
+ block: 0x2588,
+ bmonospace: 0xFF42,
+ bobaimaithai: 0x0E1A,
+ bohiragana: 0x307C,
+ bokatakana: 0x30DC,
+ bparen: 0x249D,
+ bqsquare: 0x33C3,
+ braceex: 0xF8F4,
+ braceleft: 0x007B,
+ braceleftbt: 0xF8F3,
+ braceleftmid: 0xF8F2,
+ braceleftmonospace: 0xFF5B,
+ braceleftsmall: 0xFE5B,
+ bracelefttp: 0xF8F1,
+ braceleftvertical: 0xFE37,
+ braceright: 0x007D,
+ bracerightbt: 0xF8FE,
+ bracerightmid: 0xF8FD,
+ bracerightmonospace: 0xFF5D,
+ bracerightsmall: 0xFE5C,
+ bracerighttp: 0xF8FC,
+ bracerightvertical: 0xFE38,
+ bracketleft: 0x005B,
+ bracketleftbt: 0xF8F0,
+ bracketleftex: 0xF8EF,
+ bracketleftmonospace: 0xFF3B,
+ bracketlefttp: 0xF8EE,
+ bracketright: 0x005D,
+ bracketrightbt: 0xF8FB,
+ bracketrightex: 0xF8FA,
+ bracketrightmonospace: 0xFF3D,
+ bracketrighttp: 0xF8F9,
+ breve: 0x02D8,
+ brevebelowcmb: 0x032E,
+ brevecmb: 0x0306,
+ breveinvertedbelowcmb: 0x032F,
+ breveinvertedcmb: 0x0311,
+ breveinverteddoublecmb: 0x0361,
+ bridgebelowcmb: 0x032A,
+ bridgeinvertedbelowcmb: 0x033A,
+ brokenbar: 0x00A6,
+ bstroke: 0x0180,
+ bsuperior: 0xF6EA,
+ btopbar: 0x0183,
+ buhiragana: 0x3076,
+ bukatakana: 0x30D6,
+ bullet: 0x2022,
+ bulletinverse: 0x25D8,
+ bulletoperator: 0x2219,
+ bullseye: 0x25CE,
+ c: 0x0063,
+ caarmenian: 0x056E,
+ cabengali: 0x099A,
+ cacute: 0x0107,
+ cadeva: 0x091A,
+ cagujarati: 0x0A9A,
+ cagurmukhi: 0x0A1A,
+ calsquare: 0x3388,
+ candrabindubengali: 0x0981,
+ candrabinducmb: 0x0310,
+ candrabindudeva: 0x0901,
+ candrabindugujarati: 0x0A81,
+ capslock: 0x21EA,
+ careof: 0x2105,
+ caron: 0x02C7,
+ caronbelowcmb: 0x032C,
+ caroncmb: 0x030C,
+ carriagereturn: 0x21B5,
+ cbopomofo: 0x3118,
+ ccaron: 0x010D,
+ ccedilla: 0x00E7,
+ ccedillaacute: 0x1E09,
+ ccircle: 0x24D2,
+ ccircumflex: 0x0109,
+ ccurl: 0x0255,
+ cdot: 0x010B,
+ cdotaccent: 0x010B,
+ cdsquare: 0x33C5,
+ cedilla: 0x00B8,
+ cedillacmb: 0x0327,
+ cent: 0x00A2,
+ centigrade: 0x2103,
+ centinferior: 0xF6DF,
+ centmonospace: 0xFFE0,
+ centoldstyle: 0xF7A2,
+ centsuperior: 0xF6E0,
+ chaarmenian: 0x0579,
+ chabengali: 0x099B,
+ chadeva: 0x091B,
+ chagujarati: 0x0A9B,
+ chagurmukhi: 0x0A1B,
+ chbopomofo: 0x3114,
+ cheabkhasiancyrillic: 0x04BD,
+ checkmark: 0x2713,
+ checyrillic: 0x0447,
+ chedescenderabkhasiancyrillic: 0x04BF,
+ chedescendercyrillic: 0x04B7,
+ chedieresiscyrillic: 0x04F5,
+ cheharmenian: 0x0573,
+ chekhakassiancyrillic: 0x04CC,
+ cheverticalstrokecyrillic: 0x04B9,
+ chi: 0x03C7,
+ chieuchacirclekorean: 0x3277,
+ chieuchaparenkorean: 0x3217,
+ chieuchcirclekorean: 0x3269,
+ chieuchkorean: 0x314A,
+ chieuchparenkorean: 0x3209,
+ chochangthai: 0x0E0A,
+ chochanthai: 0x0E08,
+ chochingthai: 0x0E09,
+ chochoethai: 0x0E0C,
+ chook: 0x0188,
+ cieucacirclekorean: 0x3276,
+ cieucaparenkorean: 0x3216,
+ cieuccirclekorean: 0x3268,
+ cieuckorean: 0x3148,
+ cieucparenkorean: 0x3208,
+ cieucuparenkorean: 0x321C,
+ circle: 0x25CB,
+ circlecopyrt: 0x00A9, // This glyph is missing from Adobe's original list.
+ circlemultiply: 0x2297,
+ circleot: 0x2299,
+ circleplus: 0x2295,
+ circlepostalmark: 0x3036,
+ circlewithlefthalfblack: 0x25D0,
+ circlewithrighthalfblack: 0x25D1,
+ circumflex: 0x02C6,
+ circumflexbelowcmb: 0x032D,
+ circumflexcmb: 0x0302,
+ clear: 0x2327,
+ clickalveolar: 0x01C2,
+ clickdental: 0x01C0,
+ clicklateral: 0x01C1,
+ clickretroflex: 0x01C3,
+ club: 0x2663,
+ clubsuitblack: 0x2663,
+ clubsuitwhite: 0x2667,
+ cmcubedsquare: 0x33A4,
+ cmonospace: 0xFF43,
+ cmsquaredsquare: 0x33A0,
+ coarmenian: 0x0581,
+ colon: 0x003A,
+ colonmonetary: 0x20A1,
+ colonmonospace: 0xFF1A,
+ colonsign: 0x20A1,
+ colonsmall: 0xFE55,
+ colontriangularhalfmod: 0x02D1,
+ colontriangularmod: 0x02D0,
+ comma: 0x002C,
+ commaabovecmb: 0x0313,
+ commaaboverightcmb: 0x0315,
+ commaaccent: 0xF6C3,
+ commaarabic: 0x060C,
+ commaarmenian: 0x055D,
+ commainferior: 0xF6E1,
+ commamonospace: 0xFF0C,
+ commareversedabovecmb: 0x0314,
+ commareversedmod: 0x02BD,
+ commasmall: 0xFE50,
+ commasuperior: 0xF6E2,
+ commaturnedabovecmb: 0x0312,
+ commaturnedmod: 0x02BB,
+ compass: 0x263C,
+ congruent: 0x2245,
+ contourintegral: 0x222E,
+ control: 0x2303,
+ controlACK: 0x0006,
+ controlBEL: 0x0007,
+ controlBS: 0x0008,
+ controlCAN: 0x0018,
+ controlCR: 0x000D,
+ controlDC1: 0x0011,
+ controlDC2: 0x0012,
+ controlDC3: 0x0013,
+ controlDC4: 0x0014,
+ controlDEL: 0x007F,
+ controlDLE: 0x0010,
+ controlEM: 0x0019,
+ controlENQ: 0x0005,
+ controlEOT: 0x0004,
+ controlESC: 0x001B,
+ controlETB: 0x0017,
+ controlETX: 0x0003,
+ controlFF: 0x000C,
+ controlFS: 0x001C,
+ controlGS: 0x001D,
+ controlHT: 0x0009,
+ controlLF: 0x000A,
+ controlNAK: 0x0015,
+ controlRS: 0x001E,
+ controlSI: 0x000F,
+ controlSO: 0x000E,
+ controlSOT: 0x0002,
+ controlSTX: 0x0001,
+ controlSUB: 0x001A,
+ controlSYN: 0x0016,
+ controlUS: 0x001F,
+ controlVT: 0x000B,
+ copyright: 0x00A9,
+ copyrightsans: 0xF8E9,
+ copyrightserif: 0xF6D9,
+ cornerbracketleft: 0x300C,
+ cornerbracketlefthalfwidth: 0xFF62,
+ cornerbracketleftvertical: 0xFE41,
+ cornerbracketright: 0x300D,
+ cornerbracketrighthalfwidth: 0xFF63,
+ cornerbracketrightvertical: 0xFE42,
+ corporationsquare: 0x337F,
+ cosquare: 0x33C7,
+ coverkgsquare: 0x33C6,
+ cparen: 0x249E,
+ cruzeiro: 0x20A2,
+ cstretched: 0x0297,
+ curlyand: 0x22CF,
+ curlyor: 0x22CE,
+ currency: 0x00A4,
+ cyrBreve: 0xF6D1,
+ cyrFlex: 0xF6D2,
+ cyrbreve: 0xF6D4,
+ cyrflex: 0xF6D5,
+ d: 0x0064,
+ daarmenian: 0x0564,
+ dabengali: 0x09A6,
+ dadarabic: 0x0636,
+ dadeva: 0x0926,
+ dadfinalarabic: 0xFEBE,
+ dadinitialarabic: 0xFEBF,
+ dadmedialarabic: 0xFEC0,
+ dagesh: 0x05BC,
+ dageshhebrew: 0x05BC,
+ dagger: 0x2020,
+ daggerdbl: 0x2021,
+ dagujarati: 0x0AA6,
+ dagurmukhi: 0x0A26,
+ dahiragana: 0x3060,
+ dakatakana: 0x30C0,
+ dalarabic: 0x062F,
+ dalet: 0x05D3,
+ daletdagesh: 0xFB33,
+ daletdageshhebrew: 0xFB33,
+ dalethebrew: 0x05D3,
+ dalfinalarabic: 0xFEAA,
+ dammaarabic: 0x064F,
+ dammalowarabic: 0x064F,
+ dammatanaltonearabic: 0x064C,
+ dammatanarabic: 0x064C,
+ danda: 0x0964,
+ dargahebrew: 0x05A7,
+ dargalefthebrew: 0x05A7,
+ dasiapneumatacyrilliccmb: 0x0485,
+ dblGrave: 0xF6D3,
+ dblanglebracketleft: 0x300A,
+ dblanglebracketleftvertical: 0xFE3D,
+ dblanglebracketright: 0x300B,
+ dblanglebracketrightvertical: 0xFE3E,
+ dblarchinvertedbelowcmb: 0x032B,
+ dblarrowleft: 0x21D4,
+ dblarrowright: 0x21D2,
+ dbldanda: 0x0965,
+ dblgrave: 0xF6D6,
+ dblgravecmb: 0x030F,
+ dblintegral: 0x222C,
+ dbllowline: 0x2017,
+ dbllowlinecmb: 0x0333,
+ dbloverlinecmb: 0x033F,
+ dblprimemod: 0x02BA,
+ dblverticalbar: 0x2016,
+ dblverticallineabovecmb: 0x030E,
+ dbopomofo: 0x3109,
+ dbsquare: 0x33C8,
+ dcaron: 0x010F,
+ dcedilla: 0x1E11,
+ dcircle: 0x24D3,
+ dcircumflexbelow: 0x1E13,
+ dcroat: 0x0111,
+ ddabengali: 0x09A1,
+ ddadeva: 0x0921,
+ ddagujarati: 0x0AA1,
+ ddagurmukhi: 0x0A21,
+ ddalarabic: 0x0688,
+ ddalfinalarabic: 0xFB89,
+ dddhadeva: 0x095C,
+ ddhabengali: 0x09A2,
+ ddhadeva: 0x0922,
+ ddhagujarati: 0x0AA2,
+ ddhagurmukhi: 0x0A22,
+ ddotaccent: 0x1E0B,
+ ddotbelow: 0x1E0D,
+ decimalseparatorarabic: 0x066B,
+ decimalseparatorpersian: 0x066B,
+ decyrillic: 0x0434,
+ degree: 0x00B0,
+ dehihebrew: 0x05AD,
+ dehiragana: 0x3067,
+ deicoptic: 0x03EF,
+ dekatakana: 0x30C7,
+ deleteleft: 0x232B,
+ deleteright: 0x2326,
+ delta: 0x03B4,
+ deltaturned: 0x018D,
+ denominatorminusonenumeratorbengali: 0x09F8,
+ dezh: 0x02A4,
+ dhabengali: 0x09A7,
+ dhadeva: 0x0927,
+ dhagujarati: 0x0AA7,
+ dhagurmukhi: 0x0A27,
+ dhook: 0x0257,
+ dialytikatonos: 0x0385,
+ dialytikatonoscmb: 0x0344,
+ diamond: 0x2666,
+ diamondsuitwhite: 0x2662,
+ dieresis: 0x00A8,
+ dieresisacute: 0xF6D7,
+ dieresisbelowcmb: 0x0324,
+ dieresiscmb: 0x0308,
+ dieresisgrave: 0xF6D8,
+ dieresistonos: 0x0385,
+ dihiragana: 0x3062,
+ dikatakana: 0x30C2,
+ dittomark: 0x3003,
+ divide: 0x00F7,
+ divides: 0x2223,
+ divisionslash: 0x2215,
+ djecyrillic: 0x0452,
+ dkshade: 0x2593,
+ dlinebelow: 0x1E0F,
+ dlsquare: 0x3397,
+ dmacron: 0x0111,
+ dmonospace: 0xFF44,
+ dnblock: 0x2584,
+ dochadathai: 0x0E0E,
+ dodekthai: 0x0E14,
+ dohiragana: 0x3069,
+ dokatakana: 0x30C9,
+ dollar: 0x0024,
+ dollarinferior: 0xF6E3,
+ dollarmonospace: 0xFF04,
+ dollaroldstyle: 0xF724,
+ dollarsmall: 0xFE69,
+ dollarsuperior: 0xF6E4,
+ dong: 0x20AB,
+ dorusquare: 0x3326,
+ dotaccent: 0x02D9,
+ dotaccentcmb: 0x0307,
+ dotbelowcmb: 0x0323,
+ dotbelowcomb: 0x0323,
+ dotkatakana: 0x30FB,
+ dotlessi: 0x0131,
+ dotlessj: 0xF6BE,
+ dotlessjstrokehook: 0x0284,
+ dotmath: 0x22C5,
+ dottedcircle: 0x25CC,
+ doubleyodpatah: 0xFB1F,
+ doubleyodpatahhebrew: 0xFB1F,
+ downtackbelowcmb: 0x031E,
+ downtackmod: 0x02D5,
+ dparen: 0x249F,
+ dsuperior: 0xF6EB,
+ dtail: 0x0256,
+ dtopbar: 0x018C,
+ duhiragana: 0x3065,
+ dukatakana: 0x30C5,
+ dz: 0x01F3,
+ dzaltone: 0x02A3,
+ dzcaron: 0x01C6,
+ dzcurl: 0x02A5,
+ dzeabkhasiancyrillic: 0x04E1,
+ dzecyrillic: 0x0455,
+ dzhecyrillic: 0x045F,
+ e: 0x0065,
+ eacute: 0x00E9,
+ earth: 0x2641,
+ ebengali: 0x098F,
+ ebopomofo: 0x311C,
+ ebreve: 0x0115,
+ ecandradeva: 0x090D,
+ ecandragujarati: 0x0A8D,
+ ecandravowelsigndeva: 0x0945,
+ ecandravowelsigngujarati: 0x0AC5,
+ ecaron: 0x011B,
+ ecedillabreve: 0x1E1D,
+ echarmenian: 0x0565,
+ echyiwnarmenian: 0x0587,
+ ecircle: 0x24D4,
+ ecircumflex: 0x00EA,
+ ecircumflexacute: 0x1EBF,
+ ecircumflexbelow: 0x1E19,
+ ecircumflexdotbelow: 0x1EC7,
+ ecircumflexgrave: 0x1EC1,
+ ecircumflexhookabove: 0x1EC3,
+ ecircumflextilde: 0x1EC5,
+ ecyrillic: 0x0454,
+ edblgrave: 0x0205,
+ edeva: 0x090F,
+ edieresis: 0x00EB,
+ edot: 0x0117,
+ edotaccent: 0x0117,
+ edotbelow: 0x1EB9,
+ eegurmukhi: 0x0A0F,
+ eematragurmukhi: 0x0A47,
+ efcyrillic: 0x0444,
+ egrave: 0x00E8,
+ egujarati: 0x0A8F,
+ eharmenian: 0x0567,
+ ehbopomofo: 0x311D,
+ ehiragana: 0x3048,
+ ehookabove: 0x1EBB,
+ eibopomofo: 0x311F,
+ eight: 0x0038,
+ eightarabic: 0x0668,
+ eightbengali: 0x09EE,
+ eightcircle: 0x2467,
+ eightcircleinversesansserif: 0x2791,
+ eightdeva: 0x096E,
+ eighteencircle: 0x2471,
+ eighteenparen: 0x2485,
+ eighteenperiod: 0x2499,
+ eightgujarati: 0x0AEE,
+ eightgurmukhi: 0x0A6E,
+ eighthackarabic: 0x0668,
+ eighthangzhou: 0x3028,
+ eighthnotebeamed: 0x266B,
+ eightideographicparen: 0x3227,
+ eightinferior: 0x2088,
+ eightmonospace: 0xFF18,
+ eightoldstyle: 0xF738,
+ eightparen: 0x247B,
+ eightperiod: 0x248F,
+ eightpersian: 0x06F8,
+ eightroman: 0x2177,
+ eightsuperior: 0x2078,
+ eightthai: 0x0E58,
+ einvertedbreve: 0x0207,
+ eiotifiedcyrillic: 0x0465,
+ ekatakana: 0x30A8,
+ ekatakanahalfwidth: 0xFF74,
+ ekonkargurmukhi: 0x0A74,
+ ekorean: 0x3154,
+ elcyrillic: 0x043B,
+ element: 0x2208,
+ elevencircle: 0x246A,
+ elevenparen: 0x247E,
+ elevenperiod: 0x2492,
+ elevenroman: 0x217A,
+ ellipsis: 0x2026,
+ ellipsisvertical: 0x22EE,
+ emacron: 0x0113,
+ emacronacute: 0x1E17,
+ emacrongrave: 0x1E15,
+ emcyrillic: 0x043C,
+ emdash: 0x2014,
+ emdashvertical: 0xFE31,
+ emonospace: 0xFF45,
+ emphasismarkarmenian: 0x055B,
+ emptyset: 0x2205,
+ enbopomofo: 0x3123,
+ encyrillic: 0x043D,
+ endash: 0x2013,
+ endashvertical: 0xFE32,
+ endescendercyrillic: 0x04A3,
+ eng: 0x014B,
+ engbopomofo: 0x3125,
+ enghecyrillic: 0x04A5,
+ enhookcyrillic: 0x04C8,
+ enspace: 0x2002,
+ eogonek: 0x0119,
+ eokorean: 0x3153,
+ eopen: 0x025B,
+ eopenclosed: 0x029A,
+ eopenreversed: 0x025C,
+ eopenreversedclosed: 0x025E,
+ eopenreversedhook: 0x025D,
+ eparen: 0x24A0,
+ epsilon: 0x03B5,
+ epsilontonos: 0x03AD,
+ equal: 0x003D,
+ equalmonospace: 0xFF1D,
+ equalsmall: 0xFE66,
+ equalsuperior: 0x207C,
+ equivalence: 0x2261,
+ erbopomofo: 0x3126,
+ ercyrillic: 0x0440,
+ ereversed: 0x0258,
+ ereversedcyrillic: 0x044D,
+ escyrillic: 0x0441,
+ esdescendercyrillic: 0x04AB,
+ esh: 0x0283,
+ eshcurl: 0x0286,
+ eshortdeva: 0x090E,
+ eshortvowelsigndeva: 0x0946,
+ eshreversedloop: 0x01AA,
+ eshsquatreversed: 0x0285,
+ esmallhiragana: 0x3047,
+ esmallkatakana: 0x30A7,
+ esmallkatakanahalfwidth: 0xFF6A,
+ estimated: 0x212E,
+ esuperior: 0xF6EC,
+ eta: 0x03B7,
+ etarmenian: 0x0568,
+ etatonos: 0x03AE,
+ eth: 0x00F0,
+ etilde: 0x1EBD,
+ etildebelow: 0x1E1B,
+ etnahtafoukhhebrew: 0x0591,
+ etnahtafoukhlefthebrew: 0x0591,
+ etnahtahebrew: 0x0591,
+ etnahtalefthebrew: 0x0591,
+ eturned: 0x01DD,
+ eukorean: 0x3161,
+ euro: 0x20AC,
+ evowelsignbengali: 0x09C7,
+ evowelsigndeva: 0x0947,
+ evowelsigngujarati: 0x0AC7,
+ exclam: 0x0021,
+ exclamarmenian: 0x055C,
+ exclamdbl: 0x203C,
+ exclamdown: 0x00A1,
+ exclamdownsmall: 0xF7A1,
+ exclammonospace: 0xFF01,
+ exclamsmall: 0xF721,
+ existential: 0x2203,
+ ezh: 0x0292,
+ ezhcaron: 0x01EF,
+ ezhcurl: 0x0293,
+ ezhreversed: 0x01B9,
+ ezhtail: 0x01BA,
+ f: 0x0066,
+ fadeva: 0x095E,
+ fagurmukhi: 0x0A5E,
+ fahrenheit: 0x2109,
+ fathaarabic: 0x064E,
+ fathalowarabic: 0x064E,
+ fathatanarabic: 0x064B,
+ fbopomofo: 0x3108,
+ fcircle: 0x24D5,
+ fdotaccent: 0x1E1F,
+ feharabic: 0x0641,
+ feharmenian: 0x0586,
+ fehfinalarabic: 0xFED2,
+ fehinitialarabic: 0xFED3,
+ fehmedialarabic: 0xFED4,
+ feicoptic: 0x03E5,
+ female: 0x2640,
+ ff: 0xFB00,
+ ffi: 0xFB03,
+ ffl: 0xFB04,
+ fi: 0xFB01,
+ fifteencircle: 0x246E,
+ fifteenparen: 0x2482,
+ fifteenperiod: 0x2496,
+ figuredash: 0x2012,
+ filledbox: 0x25A0,
+ filledrect: 0x25AC,
+ finalkaf: 0x05DA,
+ finalkafdagesh: 0xFB3A,
+ finalkafdageshhebrew: 0xFB3A,
+ finalkafhebrew: 0x05DA,
+ finalmem: 0x05DD,
+ finalmemhebrew: 0x05DD,
+ finalnun: 0x05DF,
+ finalnunhebrew: 0x05DF,
+ finalpe: 0x05E3,
+ finalpehebrew: 0x05E3,
+ finaltsadi: 0x05E5,
+ finaltsadihebrew: 0x05E5,
+ firsttonechinese: 0x02C9,
+ fisheye: 0x25C9,
+ fitacyrillic: 0x0473,
+ five: 0x0035,
+ fivearabic: 0x0665,
+ fivebengali: 0x09EB,
+ fivecircle: 0x2464,
+ fivecircleinversesansserif: 0x278E,
+ fivedeva: 0x096B,
+ fiveeighths: 0x215D,
+ fivegujarati: 0x0AEB,
+ fivegurmukhi: 0x0A6B,
+ fivehackarabic: 0x0665,
+ fivehangzhou: 0x3025,
+ fiveideographicparen: 0x3224,
+ fiveinferior: 0x2085,
+ fivemonospace: 0xFF15,
+ fiveoldstyle: 0xF735,
+ fiveparen: 0x2478,
+ fiveperiod: 0x248C,
+ fivepersian: 0x06F5,
+ fiveroman: 0x2174,
+ fivesuperior: 0x2075,
+ fivethai: 0x0E55,
+ fl: 0xFB02,
+ florin: 0x0192,
+ fmonospace: 0xFF46,
+ fmsquare: 0x3399,
+ fofanthai: 0x0E1F,
+ fofathai: 0x0E1D,
+ fongmanthai: 0x0E4F,
+ forall: 0x2200,
+ four: 0x0034,
+ fourarabic: 0x0664,
+ fourbengali: 0x09EA,
+ fourcircle: 0x2463,
+ fourcircleinversesansserif: 0x278D,
+ fourdeva: 0x096A,
+ fourgujarati: 0x0AEA,
+ fourgurmukhi: 0x0A6A,
+ fourhackarabic: 0x0664,
+ fourhangzhou: 0x3024,
+ fourideographicparen: 0x3223,
+ fourinferior: 0x2084,
+ fourmonospace: 0xFF14,
+ fournumeratorbengali: 0x09F7,
+ fouroldstyle: 0xF734,
+ fourparen: 0x2477,
+ fourperiod: 0x248B,
+ fourpersian: 0x06F4,
+ fourroman: 0x2173,
+ foursuperior: 0x2074,
+ fourteencircle: 0x246D,
+ fourteenparen: 0x2481,
+ fourteenperiod: 0x2495,
+ fourthai: 0x0E54,
+ fourthtonechinese: 0x02CB,
+ fparen: 0x24A1,
+ fraction: 0x2044,
+ franc: 0x20A3,
+ g: 0x0067,
+ gabengali: 0x0997,
+ gacute: 0x01F5,
+ gadeva: 0x0917,
+ gafarabic: 0x06AF,
+ gaffinalarabic: 0xFB93,
+ gafinitialarabic: 0xFB94,
+ gafmedialarabic: 0xFB95,
+ gagujarati: 0x0A97,
+ gagurmukhi: 0x0A17,
+ gahiragana: 0x304C,
+ gakatakana: 0x30AC,
+ gamma: 0x03B3,
+ gammalatinsmall: 0x0263,
+ gammasuperior: 0x02E0,
+ gangiacoptic: 0x03EB,
+ gbopomofo: 0x310D,
+ gbreve: 0x011F,
+ gcaron: 0x01E7,
+ gcedilla: 0x0123,
+ gcircle: 0x24D6,
+ gcircumflex: 0x011D,
+ gcommaaccent: 0x0123,
+ gdot: 0x0121,
+ gdotaccent: 0x0121,
+ gecyrillic: 0x0433,
+ gehiragana: 0x3052,
+ gekatakana: 0x30B2,
+ geometricallyequal: 0x2251,
+ gereshaccenthebrew: 0x059C,
+ gereshhebrew: 0x05F3,
+ gereshmuqdamhebrew: 0x059D,
+ germandbls: 0x00DF,
+ gershayimaccenthebrew: 0x059E,
+ gershayimhebrew: 0x05F4,
+ getamark: 0x3013,
+ ghabengali: 0x0998,
+ ghadarmenian: 0x0572,
+ ghadeva: 0x0918,
+ ghagujarati: 0x0A98,
+ ghagurmukhi: 0x0A18,
+ ghainarabic: 0x063A,
+ ghainfinalarabic: 0xFECE,
+ ghaininitialarabic: 0xFECF,
+ ghainmedialarabic: 0xFED0,
+ ghemiddlehookcyrillic: 0x0495,
+ ghestrokecyrillic: 0x0493,
+ gheupturncyrillic: 0x0491,
+ ghhadeva: 0x095A,
+ ghhagurmukhi: 0x0A5A,
+ ghook: 0x0260,
+ ghzsquare: 0x3393,
+ gihiragana: 0x304E,
+ gikatakana: 0x30AE,
+ gimarmenian: 0x0563,
+ gimel: 0x05D2,
+ gimeldagesh: 0xFB32,
+ gimeldageshhebrew: 0xFB32,
+ gimelhebrew: 0x05D2,
+ gjecyrillic: 0x0453,
+ glottalinvertedstroke: 0x01BE,
+ glottalstop: 0x0294,
+ glottalstopinverted: 0x0296,
+ glottalstopmod: 0x02C0,
+ glottalstopreversed: 0x0295,
+ glottalstopreversedmod: 0x02C1,
+ glottalstopreversedsuperior: 0x02E4,
+ glottalstopstroke: 0x02A1,
+ glottalstopstrokereversed: 0x02A2,
+ gmacron: 0x1E21,
+ gmonospace: 0xFF47,
+ gohiragana: 0x3054,
+ gokatakana: 0x30B4,
+ gparen: 0x24A2,
+ gpasquare: 0x33AC,
+ gradient: 0x2207,
+ grave: 0x0060,
+ gravebelowcmb: 0x0316,
+ gravecmb: 0x0300,
+ gravecomb: 0x0300,
+ gravedeva: 0x0953,
+ gravelowmod: 0x02CE,
+ gravemonospace: 0xFF40,
+ gravetonecmb: 0x0340,
+ greater: 0x003E,
+ greaterequal: 0x2265,
+ greaterequalorless: 0x22DB,
+ greatermonospace: 0xFF1E,
+ greaterorequivalent: 0x2273,
+ greaterorless: 0x2277,
+ greateroverequal: 0x2267,
+ greatersmall: 0xFE65,
+ gscript: 0x0261,
+ gstroke: 0x01E5,
+ guhiragana: 0x3050,
+ guillemotleft: 0x00AB,
+ guillemotright: 0x00BB,
+ guilsinglleft: 0x2039,
+ guilsinglright: 0x203A,
+ gukatakana: 0x30B0,
+ guramusquare: 0x3318,
+ gysquare: 0x33C9,
+ h: 0x0068,
+ haabkhasiancyrillic: 0x04A9,
+ haaltonearabic: 0x06C1,
+ habengali: 0x09B9,
+ hadescendercyrillic: 0x04B3,
+ hadeva: 0x0939,
+ hagujarati: 0x0AB9,
+ hagurmukhi: 0x0A39,
+ haharabic: 0x062D,
+ hahfinalarabic: 0xFEA2,
+ hahinitialarabic: 0xFEA3,
+ hahiragana: 0x306F,
+ hahmedialarabic: 0xFEA4,
+ haitusquare: 0x332A,
+ hakatakana: 0x30CF,
+ hakatakanahalfwidth: 0xFF8A,
+ halantgurmukhi: 0x0A4D,
+ hamzaarabic: 0x0621,
+ hamzalowarabic: 0x0621,
+ hangulfiller: 0x3164,
+ hardsigncyrillic: 0x044A,
+ harpoonleftbarbup: 0x21BC,
+ harpoonrightbarbup: 0x21C0,
+ hasquare: 0x33CA,
+ hatafpatah: 0x05B2,
+ hatafpatah16: 0x05B2,
+ hatafpatah23: 0x05B2,
+ hatafpatah2f: 0x05B2,
+ hatafpatahhebrew: 0x05B2,
+ hatafpatahnarrowhebrew: 0x05B2,
+ hatafpatahquarterhebrew: 0x05B2,
+ hatafpatahwidehebrew: 0x05B2,
+ hatafqamats: 0x05B3,
+ hatafqamats1b: 0x05B3,
+ hatafqamats28: 0x05B3,
+ hatafqamats34: 0x05B3,
+ hatafqamatshebrew: 0x05B3,
+ hatafqamatsnarrowhebrew: 0x05B3,
+ hatafqamatsquarterhebrew: 0x05B3,
+ hatafqamatswidehebrew: 0x05B3,
+ hatafsegol: 0x05B1,
+ hatafsegol17: 0x05B1,
+ hatafsegol24: 0x05B1,
+ hatafsegol30: 0x05B1,
+ hatafsegolhebrew: 0x05B1,
+ hatafsegolnarrowhebrew: 0x05B1,
+ hatafsegolquarterhebrew: 0x05B1,
+ hatafsegolwidehebrew: 0x05B1,
+ hbar: 0x0127,
+ hbopomofo: 0x310F,
+ hbrevebelow: 0x1E2B,
+ hcedilla: 0x1E29,
+ hcircle: 0x24D7,
+ hcircumflex: 0x0125,
+ hdieresis: 0x1E27,
+ hdotaccent: 0x1E23,
+ hdotbelow: 0x1E25,
+ he: 0x05D4,
+ heart: 0x2665,
+ heartsuitblack: 0x2665,
+ heartsuitwhite: 0x2661,
+ hedagesh: 0xFB34,
+ hedageshhebrew: 0xFB34,
+ hehaltonearabic: 0x06C1,
+ heharabic: 0x0647,
+ hehebrew: 0x05D4,
+ hehfinalaltonearabic: 0xFBA7,
+ hehfinalalttwoarabic: 0xFEEA,
+ hehfinalarabic: 0xFEEA,
+ hehhamzaabovefinalarabic: 0xFBA5,
+ hehhamzaaboveisolatedarabic: 0xFBA4,
+ hehinitialaltonearabic: 0xFBA8,
+ hehinitialarabic: 0xFEEB,
+ hehiragana: 0x3078,
+ hehmedialaltonearabic: 0xFBA9,
+ hehmedialarabic: 0xFEEC,
+ heiseierasquare: 0x337B,
+ hekatakana: 0x30D8,
+ hekatakanahalfwidth: 0xFF8D,
+ hekutaarusquare: 0x3336,
+ henghook: 0x0267,
+ herutusquare: 0x3339,
+ het: 0x05D7,
+ hethebrew: 0x05D7,
+ hhook: 0x0266,
+ hhooksuperior: 0x02B1,
+ hieuhacirclekorean: 0x327B,
+ hieuhaparenkorean: 0x321B,
+ hieuhcirclekorean: 0x326D,
+ hieuhkorean: 0x314E,
+ hieuhparenkorean: 0x320D,
+ hihiragana: 0x3072,
+ hikatakana: 0x30D2,
+ hikatakanahalfwidth: 0xFF8B,
+ hiriq: 0x05B4,
+ hiriq14: 0x05B4,
+ hiriq21: 0x05B4,
+ hiriq2d: 0x05B4,
+ hiriqhebrew: 0x05B4,
+ hiriqnarrowhebrew: 0x05B4,
+ hiriqquarterhebrew: 0x05B4,
+ hiriqwidehebrew: 0x05B4,
+ hlinebelow: 0x1E96,
+ hmonospace: 0xFF48,
+ hoarmenian: 0x0570,
+ hohipthai: 0x0E2B,
+ hohiragana: 0x307B,
+ hokatakana: 0x30DB,
+ hokatakanahalfwidth: 0xFF8E,
+ holam: 0x05B9,
+ holam19: 0x05B9,
+ holam26: 0x05B9,
+ holam32: 0x05B9,
+ holamhebrew: 0x05B9,
+ holamnarrowhebrew: 0x05B9,
+ holamquarterhebrew: 0x05B9,
+ holamwidehebrew: 0x05B9,
+ honokhukthai: 0x0E2E,
+ hookabovecomb: 0x0309,
+ hookcmb: 0x0309,
+ hookpalatalizedbelowcmb: 0x0321,
+ hookretroflexbelowcmb: 0x0322,
+ hoonsquare: 0x3342,
+ horicoptic: 0x03E9,
+ horizontalbar: 0x2015,
+ horncmb: 0x031B,
+ hotsprings: 0x2668,
+ house: 0x2302,
+ hparen: 0x24A3,
+ hsuperior: 0x02B0,
+ hturned: 0x0265,
+ huhiragana: 0x3075,
+ huiitosquare: 0x3333,
+ hukatakana: 0x30D5,
+ hukatakanahalfwidth: 0xFF8C,
+ hungarumlaut: 0x02DD,
+ hungarumlautcmb: 0x030B,
+ hv: 0x0195,
+ hyphen: 0x002D,
+ hypheninferior: 0xF6E5,
+ hyphenmonospace: 0xFF0D,
+ hyphensmall: 0xFE63,
+ hyphensuperior: 0xF6E6,
+ hyphentwo: 0x2010,
+ i: 0x0069,
+ iacute: 0x00ED,
+ iacyrillic: 0x044F,
+ ibengali: 0x0987,
+ ibopomofo: 0x3127,
+ ibreve: 0x012D,
+ icaron: 0x01D0,
+ icircle: 0x24D8,
+ icircumflex: 0x00EE,
+ icyrillic: 0x0456,
+ idblgrave: 0x0209,
+ ideographearthcircle: 0x328F,
+ ideographfirecircle: 0x328B,
+ ideographicallianceparen: 0x323F,
+ ideographiccallparen: 0x323A,
+ ideographiccentrecircle: 0x32A5,
+ ideographicclose: 0x3006,
+ ideographiccomma: 0x3001,
+ ideographiccommaleft: 0xFF64,
+ ideographiccongratulationparen: 0x3237,
+ ideographiccorrectcircle: 0x32A3,
+ ideographicearthparen: 0x322F,
+ ideographicenterpriseparen: 0x323D,
+ ideographicexcellentcircle: 0x329D,
+ ideographicfestivalparen: 0x3240,
+ ideographicfinancialcircle: 0x3296,
+ ideographicfinancialparen: 0x3236,
+ ideographicfireparen: 0x322B,
+ ideographichaveparen: 0x3232,
+ ideographichighcircle: 0x32A4,
+ ideographiciterationmark: 0x3005,
+ ideographiclaborcircle: 0x3298,
+ ideographiclaborparen: 0x3238,
+ ideographicleftcircle: 0x32A7,
+ ideographiclowcircle: 0x32A6,
+ ideographicmedicinecircle: 0x32A9,
+ ideographicmetalparen: 0x322E,
+ ideographicmoonparen: 0x322A,
+ ideographicnameparen: 0x3234,
+ ideographicperiod: 0x3002,
+ ideographicprintcircle: 0x329E,
+ ideographicreachparen: 0x3243,
+ ideographicrepresentparen: 0x3239,
+ ideographicresourceparen: 0x323E,
+ ideographicrightcircle: 0x32A8,
+ ideographicsecretcircle: 0x3299,
+ ideographicselfparen: 0x3242,
+ ideographicsocietyparen: 0x3233,
+ ideographicspace: 0x3000,
+ ideographicspecialparen: 0x3235,
+ ideographicstockparen: 0x3231,
+ ideographicstudyparen: 0x323B,
+ ideographicsunparen: 0x3230,
+ ideographicsuperviseparen: 0x323C,
+ ideographicwaterparen: 0x322C,
+ ideographicwoodparen: 0x322D,
+ ideographiczero: 0x3007,
+ ideographmetalcircle: 0x328E,
+ ideographmooncircle: 0x328A,
+ ideographnamecircle: 0x3294,
+ ideographsuncircle: 0x3290,
+ ideographwatercircle: 0x328C,
+ ideographwoodcircle: 0x328D,
+ ideva: 0x0907,
+ idieresis: 0x00EF,
+ idieresisacute: 0x1E2F,
+ idieresiscyrillic: 0x04E5,
+ idotbelow: 0x1ECB,
+ iebrevecyrillic: 0x04D7,
+ iecyrillic: 0x0435,
+ ieungacirclekorean: 0x3275,
+ ieungaparenkorean: 0x3215,
+ ieungcirclekorean: 0x3267,
+ ieungkorean: 0x3147,
+ ieungparenkorean: 0x3207,
+ igrave: 0x00EC,
+ igujarati: 0x0A87,
+ igurmukhi: 0x0A07,
+ ihiragana: 0x3044,
+ ihookabove: 0x1EC9,
+ iibengali: 0x0988,
+ iicyrillic: 0x0438,
+ iideva: 0x0908,
+ iigujarati: 0x0A88,
+ iigurmukhi: 0x0A08,
+ iimatragurmukhi: 0x0A40,
+ iinvertedbreve: 0x020B,
+ iishortcyrillic: 0x0439,
+ iivowelsignbengali: 0x09C0,
+ iivowelsigndeva: 0x0940,
+ iivowelsigngujarati: 0x0AC0,
+ ij: 0x0133,
+ ikatakana: 0x30A4,
+ ikatakanahalfwidth: 0xFF72,
+ ikorean: 0x3163,
+ ilde: 0x02DC,
+ iluyhebrew: 0x05AC,
+ imacron: 0x012B,
+ imacroncyrillic: 0x04E3,
+ imageorapproximatelyequal: 0x2253,
+ imatragurmukhi: 0x0A3F,
+ imonospace: 0xFF49,
+ increment: 0x2206,
+ infinity: 0x221E,
+ iniarmenian: 0x056B,
+ integral: 0x222B,
+ integralbottom: 0x2321,
+ integralbt: 0x2321,
+ integralex: 0xF8F5,
+ integraltop: 0x2320,
+ integraltp: 0x2320,
+ intersection: 0x2229,
+ intisquare: 0x3305,
+ invbullet: 0x25D8,
+ invcircle: 0x25D9,
+ invsmileface: 0x263B,
+ iocyrillic: 0x0451,
+ iogonek: 0x012F,
+ iota: 0x03B9,
+ iotadieresis: 0x03CA,
+ iotadieresistonos: 0x0390,
+ iotalatin: 0x0269,
+ iotatonos: 0x03AF,
+ iparen: 0x24A4,
+ irigurmukhi: 0x0A72,
+ ismallhiragana: 0x3043,
+ ismallkatakana: 0x30A3,
+ ismallkatakanahalfwidth: 0xFF68,
+ issharbengali: 0x09FA,
+ istroke: 0x0268,
+ isuperior: 0xF6ED,
+ iterationhiragana: 0x309D,
+ iterationkatakana: 0x30FD,
+ itilde: 0x0129,
+ itildebelow: 0x1E2D,
+ iubopomofo: 0x3129,
+ iucyrillic: 0x044E,
+ ivowelsignbengali: 0x09BF,
+ ivowelsigndeva: 0x093F,
+ ivowelsigngujarati: 0x0ABF,
+ izhitsacyrillic: 0x0475,
+ izhitsadblgravecyrillic: 0x0477,
+ j: 0x006A,
+ jaarmenian: 0x0571,
+ jabengali: 0x099C,
+ jadeva: 0x091C,
+ jagujarati: 0x0A9C,
+ jagurmukhi: 0x0A1C,
+ jbopomofo: 0x3110,
+ jcaron: 0x01F0,
+ jcircle: 0x24D9,
+ jcircumflex: 0x0135,
+ jcrossedtail: 0x029D,
+ jdotlessstroke: 0x025F,
+ jecyrillic: 0x0458,
+ jeemarabic: 0x062C,
+ jeemfinalarabic: 0xFE9E,
+ jeeminitialarabic: 0xFE9F,
+ jeemmedialarabic: 0xFEA0,
+ jeharabic: 0x0698,
+ jehfinalarabic: 0xFB8B,
+ jhabengali: 0x099D,
+ jhadeva: 0x091D,
+ jhagujarati: 0x0A9D,
+ jhagurmukhi: 0x0A1D,
+ jheharmenian: 0x057B,
+ jis: 0x3004,
+ jmonospace: 0xFF4A,
+ jparen: 0x24A5,
+ jsuperior: 0x02B2,
+ k: 0x006B,
+ kabashkircyrillic: 0x04A1,
+ kabengali: 0x0995,
+ kacute: 0x1E31,
+ kacyrillic: 0x043A,
+ kadescendercyrillic: 0x049B,
+ kadeva: 0x0915,
+ kaf: 0x05DB,
+ kafarabic: 0x0643,
+ kafdagesh: 0xFB3B,
+ kafdageshhebrew: 0xFB3B,
+ kaffinalarabic: 0xFEDA,
+ kafhebrew: 0x05DB,
+ kafinitialarabic: 0xFEDB,
+ kafmedialarabic: 0xFEDC,
+ kafrafehebrew: 0xFB4D,
+ kagujarati: 0x0A95,
+ kagurmukhi: 0x0A15,
+ kahiragana: 0x304B,
+ kahookcyrillic: 0x04C4,
+ kakatakana: 0x30AB,
+ kakatakanahalfwidth: 0xFF76,
+ kappa: 0x03BA,
+ kappasymbolgreek: 0x03F0,
+ kapyeounmieumkorean: 0x3171,
+ kapyeounphieuphkorean: 0x3184,
+ kapyeounpieupkorean: 0x3178,
+ kapyeounssangpieupkorean: 0x3179,
+ karoriisquare: 0x330D,
+ kashidaautoarabic: 0x0640,
+ kashidaautonosidebearingarabic: 0x0640,
+ kasmallkatakana: 0x30F5,
+ kasquare: 0x3384,
+ kasraarabic: 0x0650,
+ kasratanarabic: 0x064D,
+ kastrokecyrillic: 0x049F,
+ katahiraprolongmarkhalfwidth: 0xFF70,
+ kaverticalstrokecyrillic: 0x049D,
+ kbopomofo: 0x310E,
+ kcalsquare: 0x3389,
+ kcaron: 0x01E9,
+ kcedilla: 0x0137,
+ kcircle: 0x24DA,
+ kcommaaccent: 0x0137,
+ kdotbelow: 0x1E33,
+ keharmenian: 0x0584,
+ kehiragana: 0x3051,
+ kekatakana: 0x30B1,
+ kekatakanahalfwidth: 0xFF79,
+ kenarmenian: 0x056F,
+ kesmallkatakana: 0x30F6,
+ kgreenlandic: 0x0138,
+ khabengali: 0x0996,
+ khacyrillic: 0x0445,
+ khadeva: 0x0916,
+ khagujarati: 0x0A96,
+ khagurmukhi: 0x0A16,
+ khaharabic: 0x062E,
+ khahfinalarabic: 0xFEA6,
+ khahinitialarabic: 0xFEA7,
+ khahmedialarabic: 0xFEA8,
+ kheicoptic: 0x03E7,
+ khhadeva: 0x0959,
+ khhagurmukhi: 0x0A59,
+ khieukhacirclekorean: 0x3278,
+ khieukhaparenkorean: 0x3218,
+ khieukhcirclekorean: 0x326A,
+ khieukhkorean: 0x314B,
+ khieukhparenkorean: 0x320A,
+ khokhaithai: 0x0E02,
+ khokhonthai: 0x0E05,
+ khokhuatthai: 0x0E03,
+ khokhwaithai: 0x0E04,
+ khomutthai: 0x0E5B,
+ khook: 0x0199,
+ khorakhangthai: 0x0E06,
+ khzsquare: 0x3391,
+ kihiragana: 0x304D,
+ kikatakana: 0x30AD,
+ kikatakanahalfwidth: 0xFF77,
+ kiroguramusquare: 0x3315,
+ kiromeetorusquare: 0x3316,
+ kirosquare: 0x3314,
+ kiyeokacirclekorean: 0x326E,
+ kiyeokaparenkorean: 0x320E,
+ kiyeokcirclekorean: 0x3260,
+ kiyeokkorean: 0x3131,
+ kiyeokparenkorean: 0x3200,
+ kiyeoksioskorean: 0x3133,
+ kjecyrillic: 0x045C,
+ klinebelow: 0x1E35,
+ klsquare: 0x3398,
+ kmcubedsquare: 0x33A6,
+ kmonospace: 0xFF4B,
+ kmsquaredsquare: 0x33A2,
+ kohiragana: 0x3053,
+ kohmsquare: 0x33C0,
+ kokaithai: 0x0E01,
+ kokatakana: 0x30B3,
+ kokatakanahalfwidth: 0xFF7A,
+ kooposquare: 0x331E,
+ koppacyrillic: 0x0481,
+ koreanstandardsymbol: 0x327F,
+ koroniscmb: 0x0343,
+ kparen: 0x24A6,
+ kpasquare: 0x33AA,
+ ksicyrillic: 0x046F,
+ ktsquare: 0x33CF,
+ kturned: 0x029E,
+ kuhiragana: 0x304F,
+ kukatakana: 0x30AF,
+ kukatakanahalfwidth: 0xFF78,
+ kvsquare: 0x33B8,
+ kwsquare: 0x33BE,
+ l: 0x006C,
+ labengali: 0x09B2,
+ lacute: 0x013A,
+ ladeva: 0x0932,
+ lagujarati: 0x0AB2,
+ lagurmukhi: 0x0A32,
+ lakkhangyaothai: 0x0E45,
+ lamaleffinalarabic: 0xFEFC,
+ lamalefhamzaabovefinalarabic: 0xFEF8,
+ lamalefhamzaaboveisolatedarabic: 0xFEF7,
+ lamalefhamzabelowfinalarabic: 0xFEFA,
+ lamalefhamzabelowisolatedarabic: 0xFEF9,
+ lamalefisolatedarabic: 0xFEFB,
+ lamalefmaddaabovefinalarabic: 0xFEF6,
+ lamalefmaddaaboveisolatedarabic: 0xFEF5,
+ lamarabic: 0x0644,
+ lambda: 0x03BB,
+ lambdastroke: 0x019B,
+ lamed: 0x05DC,
+ lameddagesh: 0xFB3C,
+ lameddageshhebrew: 0xFB3C,
+ lamedhebrew: 0x05DC,
+ lamfinalarabic: 0xFEDE,
+ lamhahinitialarabic: 0xFCCA,
+ laminitialarabic: 0xFEDF,
+ lamjeeminitialarabic: 0xFCC9,
+ lamkhahinitialarabic: 0xFCCB,
+ lamlamhehisolatedarabic: 0xFDF2,
+ lammedialarabic: 0xFEE0,
+ lammeemhahinitialarabic: 0xFD88,
+ lammeeminitialarabic: 0xFCCC,
+ largecircle: 0x25EF,
+ lbar: 0x019A,
+ lbelt: 0x026C,
+ lbopomofo: 0x310C,
+ lcaron: 0x013E,
+ lcedilla: 0x013C,
+ lcircle: 0x24DB,
+ lcircumflexbelow: 0x1E3D,
+ lcommaaccent: 0x013C,
+ ldot: 0x0140,
+ ldotaccent: 0x0140,
+ ldotbelow: 0x1E37,
+ ldotbelowmacron: 0x1E39,
+ leftangleabovecmb: 0x031A,
+ lefttackbelowcmb: 0x0318,
+ less: 0x003C,
+ lessequal: 0x2264,
+ lessequalorgreater: 0x22DA,
+ lessmonospace: 0xFF1C,
+ lessorequivalent: 0x2272,
+ lessorgreater: 0x2276,
+ lessoverequal: 0x2266,
+ lesssmall: 0xFE64,
+ lezh: 0x026E,
+ lfblock: 0x258C,
+ lhookretroflex: 0x026D,
+ lira: 0x20A4,
+ liwnarmenian: 0x056C,
+ lj: 0x01C9,
+ ljecyrillic: 0x0459,
+ ll: 0xF6C0,
+ lladeva: 0x0933,
+ llagujarati: 0x0AB3,
+ llinebelow: 0x1E3B,
+ llladeva: 0x0934,
+ llvocalicbengali: 0x09E1,
+ llvocalicdeva: 0x0961,
+ llvocalicvowelsignbengali: 0x09E3,
+ llvocalicvowelsigndeva: 0x0963,
+ lmiddletilde: 0x026B,
+ lmonospace: 0xFF4C,
+ lmsquare: 0x33D0,
+ lochulathai: 0x0E2C,
+ logicaland: 0x2227,
+ logicalnot: 0x00AC,
+ logicalnotreversed: 0x2310,
+ logicalor: 0x2228,
+ lolingthai: 0x0E25,
+ longs: 0x017F,
+ lowlinecenterline: 0xFE4E,
+ lowlinecmb: 0x0332,
+ lowlinedashed: 0xFE4D,
+ lozenge: 0x25CA,
+ lparen: 0x24A7,
+ lslash: 0x0142,
+ lsquare: 0x2113,
+ lsuperior: 0xF6EE,
+ ltshade: 0x2591,
+ luthai: 0x0E26,
+ lvocalicbengali: 0x098C,
+ lvocalicdeva: 0x090C,
+ lvocalicvowelsignbengali: 0x09E2,
+ lvocalicvowelsigndeva: 0x0962,
+ lxsquare: 0x33D3,
+ m: 0x006D,
+ mabengali: 0x09AE,
+ macron: 0x00AF,
+ macronbelowcmb: 0x0331,
+ macroncmb: 0x0304,
+ macronlowmod: 0x02CD,
+ macronmonospace: 0xFFE3,
+ macute: 0x1E3F,
+ madeva: 0x092E,
+ magujarati: 0x0AAE,
+ magurmukhi: 0x0A2E,
+ mahapakhhebrew: 0x05A4,
+ mahapakhlefthebrew: 0x05A4,
+ mahiragana: 0x307E,
+ maichattawalowleftthai: 0xF895,
+ maichattawalowrightthai: 0xF894,
+ maichattawathai: 0x0E4B,
+ maichattawaupperleftthai: 0xF893,
+ maieklowleftthai: 0xF88C,
+ maieklowrightthai: 0xF88B,
+ maiekthai: 0x0E48,
+ maiekupperleftthai: 0xF88A,
+ maihanakatleftthai: 0xF884,
+ maihanakatthai: 0x0E31,
+ maitaikhuleftthai: 0xF889,
+ maitaikhuthai: 0x0E47,
+ maitholowleftthai: 0xF88F,
+ maitholowrightthai: 0xF88E,
+ maithothai: 0x0E49,
+ maithoupperleftthai: 0xF88D,
+ maitrilowleftthai: 0xF892,
+ maitrilowrightthai: 0xF891,
+ maitrithai: 0x0E4A,
+ maitriupperleftthai: 0xF890,
+ maiyamokthai: 0x0E46,
+ makatakana: 0x30DE,
+ makatakanahalfwidth: 0xFF8F,
+ male: 0x2642,
+ mansyonsquare: 0x3347,
+ maqafhebrew: 0x05BE,
+ mars: 0x2642,
+ masoracirclehebrew: 0x05AF,
+ masquare: 0x3383,
+ mbopomofo: 0x3107,
+ mbsquare: 0x33D4,
+ mcircle: 0x24DC,
+ mcubedsquare: 0x33A5,
+ mdotaccent: 0x1E41,
+ mdotbelow: 0x1E43,
+ meemarabic: 0x0645,
+ meemfinalarabic: 0xFEE2,
+ meeminitialarabic: 0xFEE3,
+ meemmedialarabic: 0xFEE4,
+ meemmeeminitialarabic: 0xFCD1,
+ meemmeemisolatedarabic: 0xFC48,
+ meetorusquare: 0x334D,
+ mehiragana: 0x3081,
+ meizierasquare: 0x337E,
+ mekatakana: 0x30E1,
+ mekatakanahalfwidth: 0xFF92,
+ mem: 0x05DE,
+ memdagesh: 0xFB3E,
+ memdageshhebrew: 0xFB3E,
+ memhebrew: 0x05DE,
+ menarmenian: 0x0574,
+ merkhahebrew: 0x05A5,
+ merkhakefulahebrew: 0x05A6,
+ merkhakefulalefthebrew: 0x05A6,
+ merkhalefthebrew: 0x05A5,
+ mhook: 0x0271,
+ mhzsquare: 0x3392,
+ middledotkatakanahalfwidth: 0xFF65,
+ middot: 0x00B7,
+ mieumacirclekorean: 0x3272,
+ mieumaparenkorean: 0x3212,
+ mieumcirclekorean: 0x3264,
+ mieumkorean: 0x3141,
+ mieumpansioskorean: 0x3170,
+ mieumparenkorean: 0x3204,
+ mieumpieupkorean: 0x316E,
+ mieumsioskorean: 0x316F,
+ mihiragana: 0x307F,
+ mikatakana: 0x30DF,
+ mikatakanahalfwidth: 0xFF90,
+ minus: 0x2212,
+ minusbelowcmb: 0x0320,
+ minuscircle: 0x2296,
+ minusmod: 0x02D7,
+ minusplus: 0x2213,
+ minute: 0x2032,
+ miribaarusquare: 0x334A,
+ mirisquare: 0x3349,
+ mlonglegturned: 0x0270,
+ mlsquare: 0x3396,
+ mmcubedsquare: 0x33A3,
+ mmonospace: 0xFF4D,
+ mmsquaredsquare: 0x339F,
+ mohiragana: 0x3082,
+ mohmsquare: 0x33C1,
+ mokatakana: 0x30E2,
+ mokatakanahalfwidth: 0xFF93,
+ molsquare: 0x33D6,
+ momathai: 0x0E21,
+ moverssquare: 0x33A7,
+ moverssquaredsquare: 0x33A8,
+ mparen: 0x24A8,
+ mpasquare: 0x33AB,
+ mssquare: 0x33B3,
+ msuperior: 0xF6EF,
+ mturned: 0x026F,
+ mu: 0x00B5,
+ mu1: 0x00B5,
+ muasquare: 0x3382,
+ muchgreater: 0x226B,
+ muchless: 0x226A,
+ mufsquare: 0x338C,
+ mugreek: 0x03BC,
+ mugsquare: 0x338D,
+ muhiragana: 0x3080,
+ mukatakana: 0x30E0,
+ mukatakanahalfwidth: 0xFF91,
+ mulsquare: 0x3395,
+ multiply: 0x00D7,
+ mumsquare: 0x339B,
+ munahhebrew: 0x05A3,
+ munahlefthebrew: 0x05A3,
+ musicalnote: 0x266A,
+ musicalnotedbl: 0x266B,
+ musicflatsign: 0x266D,
+ musicsharpsign: 0x266F,
+ mussquare: 0x33B2,
+ muvsquare: 0x33B6,
+ muwsquare: 0x33BC,
+ mvmegasquare: 0x33B9,
+ mvsquare: 0x33B7,
+ mwmegasquare: 0x33BF,
+ mwsquare: 0x33BD,
+ n: 0x006E,
+ nabengali: 0x09A8,
+ nabla: 0x2207,
+ nacute: 0x0144,
+ nadeva: 0x0928,
+ nagujarati: 0x0AA8,
+ nagurmukhi: 0x0A28,
+ nahiragana: 0x306A,
+ nakatakana: 0x30CA,
+ nakatakanahalfwidth: 0xFF85,
+ napostrophe: 0x0149,
+ nasquare: 0x3381,
+ nbopomofo: 0x310B,
+ nbspace: 0x00A0,
+ ncaron: 0x0148,
+ ncedilla: 0x0146,
+ ncircle: 0x24DD,
+ ncircumflexbelow: 0x1E4B,
+ ncommaaccent: 0x0146,
+ ndotaccent: 0x1E45,
+ ndotbelow: 0x1E47,
+ nehiragana: 0x306D,
+ nekatakana: 0x30CD,
+ nekatakanahalfwidth: 0xFF88,
+ newsheqelsign: 0x20AA,
+ nfsquare: 0x338B,
+ ngabengali: 0x0999,
+ ngadeva: 0x0919,
+ ngagujarati: 0x0A99,
+ ngagurmukhi: 0x0A19,
+ ngonguthai: 0x0E07,
+ nhiragana: 0x3093,
+ nhookleft: 0x0272,
+ nhookretroflex: 0x0273,
+ nieunacirclekorean: 0x326F,
+ nieunaparenkorean: 0x320F,
+ nieuncieuckorean: 0x3135,
+ nieuncirclekorean: 0x3261,
+ nieunhieuhkorean: 0x3136,
+ nieunkorean: 0x3134,
+ nieunpansioskorean: 0x3168,
+ nieunparenkorean: 0x3201,
+ nieunsioskorean: 0x3167,
+ nieuntikeutkorean: 0x3166,
+ nihiragana: 0x306B,
+ nikatakana: 0x30CB,
+ nikatakanahalfwidth: 0xFF86,
+ nikhahitleftthai: 0xF899,
+ nikhahitthai: 0x0E4D,
+ nine: 0x0039,
+ ninearabic: 0x0669,
+ ninebengali: 0x09EF,
+ ninecircle: 0x2468,
+ ninecircleinversesansserif: 0x2792,
+ ninedeva: 0x096F,
+ ninegujarati: 0x0AEF,
+ ninegurmukhi: 0x0A6F,
+ ninehackarabic: 0x0669,
+ ninehangzhou: 0x3029,
+ nineideographicparen: 0x3228,
+ nineinferior: 0x2089,
+ ninemonospace: 0xFF19,
+ nineoldstyle: 0xF739,
+ nineparen: 0x247C,
+ nineperiod: 0x2490,
+ ninepersian: 0x06F9,
+ nineroman: 0x2178,
+ ninesuperior: 0x2079,
+ nineteencircle: 0x2472,
+ nineteenparen: 0x2486,
+ nineteenperiod: 0x249A,
+ ninethai: 0x0E59,
+ nj: 0x01CC,
+ njecyrillic: 0x045A,
+ nkatakana: 0x30F3,
+ nkatakanahalfwidth: 0xFF9D,
+ nlegrightlong: 0x019E,
+ nlinebelow: 0x1E49,
+ nmonospace: 0xFF4E,
+ nmsquare: 0x339A,
+ nnabengali: 0x09A3,
+ nnadeva: 0x0923,
+ nnagujarati: 0x0AA3,
+ nnagurmukhi: 0x0A23,
+ nnnadeva: 0x0929,
+ nohiragana: 0x306E,
+ nokatakana: 0x30CE,
+ nokatakanahalfwidth: 0xFF89,
+ nonbreakingspace: 0x00A0,
+ nonenthai: 0x0E13,
+ nonuthai: 0x0E19,
+ noonarabic: 0x0646,
+ noonfinalarabic: 0xFEE6,
+ noonghunnaarabic: 0x06BA,
+ noonghunnafinalarabic: 0xFB9F,
+ nooninitialarabic: 0xFEE7,
+ noonjeeminitialarabic: 0xFCD2,
+ noonjeemisolatedarabic: 0xFC4B,
+ noonmedialarabic: 0xFEE8,
+ noonmeeminitialarabic: 0xFCD5,
+ noonmeemisolatedarabic: 0xFC4E,
+ noonnoonfinalarabic: 0xFC8D,
+ notcontains: 0x220C,
+ notelement: 0x2209,
+ notelementof: 0x2209,
+ notequal: 0x2260,
+ notgreater: 0x226F,
+ notgreaternorequal: 0x2271,
+ notgreaternorless: 0x2279,
+ notidentical: 0x2262,
+ notless: 0x226E,
+ notlessnorequal: 0x2270,
+ notparallel: 0x2226,
+ notprecedes: 0x2280,
+ notsubset: 0x2284,
+ notsucceeds: 0x2281,
+ notsuperset: 0x2285,
+ nowarmenian: 0x0576,
+ nparen: 0x24A9,
+ nssquare: 0x33B1,
+ nsuperior: 0x207F,
+ ntilde: 0x00F1,
+ nu: 0x03BD,
+ nuhiragana: 0x306C,
+ nukatakana: 0x30CC,
+ nukatakanahalfwidth: 0xFF87,
+ nuktabengali: 0x09BC,
+ nuktadeva: 0x093C,
+ nuktagujarati: 0x0ABC,
+ nuktagurmukhi: 0x0A3C,
+ numbersign: 0x0023,
+ numbersignmonospace: 0xFF03,
+ numbersignsmall: 0xFE5F,
+ numeralsigngreek: 0x0374,
+ numeralsignlowergreek: 0x0375,
+ numero: 0x2116,
+ nun: 0x05E0,
+ nundagesh: 0xFB40,
+ nundageshhebrew: 0xFB40,
+ nunhebrew: 0x05E0,
+ nvsquare: 0x33B5,
+ nwsquare: 0x33BB,
+ nyabengali: 0x099E,
+ nyadeva: 0x091E,
+ nyagujarati: 0x0A9E,
+ nyagurmukhi: 0x0A1E,
+ o: 0x006F,
+ oacute: 0x00F3,
+ oangthai: 0x0E2D,
+ obarred: 0x0275,
+ obarredcyrillic: 0x04E9,
+ obarreddieresiscyrillic: 0x04EB,
+ obengali: 0x0993,
+ obopomofo: 0x311B,
+ obreve: 0x014F,
+ ocandradeva: 0x0911,
+ ocandragujarati: 0x0A91,
+ ocandravowelsigndeva: 0x0949,
+ ocandravowelsigngujarati: 0x0AC9,
+ ocaron: 0x01D2,
+ ocircle: 0x24DE,
+ ocircumflex: 0x00F4,
+ ocircumflexacute: 0x1ED1,
+ ocircumflexdotbelow: 0x1ED9,
+ ocircumflexgrave: 0x1ED3,
+ ocircumflexhookabove: 0x1ED5,
+ ocircumflextilde: 0x1ED7,
+ ocyrillic: 0x043E,
+ odblacute: 0x0151,
+ odblgrave: 0x020D,
+ odeva: 0x0913,
+ odieresis: 0x00F6,
+ odieresiscyrillic: 0x04E7,
+ odotbelow: 0x1ECD,
+ oe: 0x0153,
+ oekorean: 0x315A,
+ ogonek: 0x02DB,
+ ogonekcmb: 0x0328,
+ ograve: 0x00F2,
+ ogujarati: 0x0A93,
+ oharmenian: 0x0585,
+ ohiragana: 0x304A,
+ ohookabove: 0x1ECF,
+ ohorn: 0x01A1,
+ ohornacute: 0x1EDB,
+ ohorndotbelow: 0x1EE3,
+ ohorngrave: 0x1EDD,
+ ohornhookabove: 0x1EDF,
+ ohorntilde: 0x1EE1,
+ ohungarumlaut: 0x0151,
+ oi: 0x01A3,
+ oinvertedbreve: 0x020F,
+ okatakana: 0x30AA,
+ okatakanahalfwidth: 0xFF75,
+ okorean: 0x3157,
+ olehebrew: 0x05AB,
+ omacron: 0x014D,
+ omacronacute: 0x1E53,
+ omacrongrave: 0x1E51,
+ omdeva: 0x0950,
+ omega: 0x03C9,
+ omega1: 0x03D6,
+ omegacyrillic: 0x0461,
+ omegalatinclosed: 0x0277,
+ omegaroundcyrillic: 0x047B,
+ omegatitlocyrillic: 0x047D,
+ omegatonos: 0x03CE,
+ omgujarati: 0x0AD0,
+ omicron: 0x03BF,
+ omicrontonos: 0x03CC,
+ omonospace: 0xFF4F,
+ one: 0x0031,
+ onearabic: 0x0661,
+ onebengali: 0x09E7,
+ onecircle: 0x2460,
+ onecircleinversesansserif: 0x278A,
+ onedeva: 0x0967,
+ onedotenleader: 0x2024,
+ oneeighth: 0x215B,
+ onefitted: 0xF6DC,
+ onegujarati: 0x0AE7,
+ onegurmukhi: 0x0A67,
+ onehackarabic: 0x0661,
+ onehalf: 0x00BD,
+ onehangzhou: 0x3021,
+ oneideographicparen: 0x3220,
+ oneinferior: 0x2081,
+ onemonospace: 0xFF11,
+ onenumeratorbengali: 0x09F4,
+ oneoldstyle: 0xF731,
+ oneparen: 0x2474,
+ oneperiod: 0x2488,
+ onepersian: 0x06F1,
+ onequarter: 0x00BC,
+ oneroman: 0x2170,
+ onesuperior: 0x00B9,
+ onethai: 0x0E51,
+ onethird: 0x2153,
+ oogonek: 0x01EB,
+ oogonekmacron: 0x01ED,
+ oogurmukhi: 0x0A13,
+ oomatragurmukhi: 0x0A4B,
+ oopen: 0x0254,
+ oparen: 0x24AA,
+ openbullet: 0x25E6,
+ option: 0x2325,
+ ordfeminine: 0x00AA,
+ ordmasculine: 0x00BA,
+ orthogonal: 0x221F,
+ oshortdeva: 0x0912,
+ oshortvowelsigndeva: 0x094A,
+ oslash: 0x00F8,
+ oslashacute: 0x01FF,
+ osmallhiragana: 0x3049,
+ osmallkatakana: 0x30A9,
+ osmallkatakanahalfwidth: 0xFF6B,
+ ostrokeacute: 0x01FF,
+ osuperior: 0xF6F0,
+ otcyrillic: 0x047F,
+ otilde: 0x00F5,
+ otildeacute: 0x1E4D,
+ otildedieresis: 0x1E4F,
+ oubopomofo: 0x3121,
+ overline: 0x203E,
+ overlinecenterline: 0xFE4A,
+ overlinecmb: 0x0305,
+ overlinedashed: 0xFE49,
+ overlinedblwavy: 0xFE4C,
+ overlinewavy: 0xFE4B,
+ overscore: 0x00AF,
+ ovowelsignbengali: 0x09CB,
+ ovowelsigndeva: 0x094B,
+ ovowelsigngujarati: 0x0ACB,
+ p: 0x0070,
+ paampssquare: 0x3380,
+ paasentosquare: 0x332B,
+ pabengali: 0x09AA,
+ pacute: 0x1E55,
+ padeva: 0x092A,
+ pagedown: 0x21DF,
+ pageup: 0x21DE,
+ pagujarati: 0x0AAA,
+ pagurmukhi: 0x0A2A,
+ pahiragana: 0x3071,
+ paiyannoithai: 0x0E2F,
+ pakatakana: 0x30D1,
+ palatalizationcyrilliccmb: 0x0484,
+ palochkacyrillic: 0x04C0,
+ pansioskorean: 0x317F,
+ paragraph: 0x00B6,
+ parallel: 0x2225,
+ parenleft: 0x0028,
+ parenleftaltonearabic: 0xFD3E,
+ parenleftbt: 0xF8ED,
+ parenleftex: 0xF8EC,
+ parenleftinferior: 0x208D,
+ parenleftmonospace: 0xFF08,
+ parenleftsmall: 0xFE59,
+ parenleftsuperior: 0x207D,
+ parenlefttp: 0xF8EB,
+ parenleftvertical: 0xFE35,
+ parenright: 0x0029,
+ parenrightaltonearabic: 0xFD3F,
+ parenrightbt: 0xF8F8,
+ parenrightex: 0xF8F7,
+ parenrightinferior: 0x208E,
+ parenrightmonospace: 0xFF09,
+ parenrightsmall: 0xFE5A,
+ parenrightsuperior: 0x207E,
+ parenrighttp: 0xF8F6,
+ parenrightvertical: 0xFE36,
+ partialdiff: 0x2202,
+ paseqhebrew: 0x05C0,
+ pashtahebrew: 0x0599,
+ pasquare: 0x33A9,
+ patah: 0x05B7,
+ patah11: 0x05B7,
+ patah1d: 0x05B7,
+ patah2a: 0x05B7,
+ patahhebrew: 0x05B7,
+ patahnarrowhebrew: 0x05B7,
+ patahquarterhebrew: 0x05B7,
+ patahwidehebrew: 0x05B7,
+ pazerhebrew: 0x05A1,
+ pbopomofo: 0x3106,
+ pcircle: 0x24DF,
+ pdotaccent: 0x1E57,
+ pe: 0x05E4,
+ pecyrillic: 0x043F,
+ pedagesh: 0xFB44,
+ pedageshhebrew: 0xFB44,
+ peezisquare: 0x333B,
+ pefinaldageshhebrew: 0xFB43,
+ peharabic: 0x067E,
+ peharmenian: 0x057A,
+ pehebrew: 0x05E4,
+ pehfinalarabic: 0xFB57,
+ pehinitialarabic: 0xFB58,
+ pehiragana: 0x307A,
+ pehmedialarabic: 0xFB59,
+ pekatakana: 0x30DA,
+ pemiddlehookcyrillic: 0x04A7,
+ perafehebrew: 0xFB4E,
+ percent: 0x0025,
+ percentarabic: 0x066A,
+ percentmonospace: 0xFF05,
+ percentsmall: 0xFE6A,
+ period: 0x002E,
+ periodarmenian: 0x0589,
+ periodcentered: 0x00B7,
+ periodhalfwidth: 0xFF61,
+ periodinferior: 0xF6E7,
+ periodmonospace: 0xFF0E,
+ periodsmall: 0xFE52,
+ periodsuperior: 0xF6E8,
+ perispomenigreekcmb: 0x0342,
+ perpendicular: 0x22A5,
+ perthousand: 0x2030,
+ peseta: 0x20A7,
+ pfsquare: 0x338A,
+ phabengali: 0x09AB,
+ phadeva: 0x092B,
+ phagujarati: 0x0AAB,
+ phagurmukhi: 0x0A2B,
+ phi: 0x03C6,
+ phi1: 0x03D5,
+ phieuphacirclekorean: 0x327A,
+ phieuphaparenkorean: 0x321A,
+ phieuphcirclekorean: 0x326C,
+ phieuphkorean: 0x314D,
+ phieuphparenkorean: 0x320C,
+ philatin: 0x0278,
+ phinthuthai: 0x0E3A,
+ phisymbolgreek: 0x03D5,
+ phook: 0x01A5,
+ phophanthai: 0x0E1E,
+ phophungthai: 0x0E1C,
+ phosamphaothai: 0x0E20,
+ pi: 0x03C0,
+ pieupacirclekorean: 0x3273,
+ pieupaparenkorean: 0x3213,
+ pieupcieuckorean: 0x3176,
+ pieupcirclekorean: 0x3265,
+ pieupkiyeokkorean: 0x3172,
+ pieupkorean: 0x3142,
+ pieupparenkorean: 0x3205,
+ pieupsioskiyeokkorean: 0x3174,
+ pieupsioskorean: 0x3144,
+ pieupsiostikeutkorean: 0x3175,
+ pieupthieuthkorean: 0x3177,
+ pieuptikeutkorean: 0x3173,
+ pihiragana: 0x3074,
+ pikatakana: 0x30D4,
+ pisymbolgreek: 0x03D6,
+ piwrarmenian: 0x0583,
+ plus: 0x002B,
+ plusbelowcmb: 0x031F,
+ pluscircle: 0x2295,
+ plusminus: 0x00B1,
+ plusmod: 0x02D6,
+ plusmonospace: 0xFF0B,
+ plussmall: 0xFE62,
+ plussuperior: 0x207A,
+ pmonospace: 0xFF50,
+ pmsquare: 0x33D8,
+ pohiragana: 0x307D,
+ pointingindexdownwhite: 0x261F,
+ pointingindexleftwhite: 0x261C,
+ pointingindexrightwhite: 0x261E,
+ pointingindexupwhite: 0x261D,
+ pokatakana: 0x30DD,
+ poplathai: 0x0E1B,
+ postalmark: 0x3012,
+ postalmarkface: 0x3020,
+ pparen: 0x24AB,
+ precedes: 0x227A,
+ prescription: 0x211E,
+ primemod: 0x02B9,
+ primereversed: 0x2035,
+ product: 0x220F,
+ projective: 0x2305,
+ prolongedkana: 0x30FC,
+ propellor: 0x2318,
+ propersubset: 0x2282,
+ propersuperset: 0x2283,
+ proportion: 0x2237,
+ proportional: 0x221D,
+ psi: 0x03C8,
+ psicyrillic: 0x0471,
+ psilipneumatacyrilliccmb: 0x0486,
+ pssquare: 0x33B0,
+ puhiragana: 0x3077,
+ pukatakana: 0x30D7,
+ pvsquare: 0x33B4,
+ pwsquare: 0x33BA,
+ q: 0x0071,
+ qadeva: 0x0958,
+ qadmahebrew: 0x05A8,
+ qafarabic: 0x0642,
+ qaffinalarabic: 0xFED6,
+ qafinitialarabic: 0xFED7,
+ qafmedialarabic: 0xFED8,
+ qamats: 0x05B8,
+ qamats10: 0x05B8,
+ qamats1a: 0x05B8,
+ qamats1c: 0x05B8,
+ qamats27: 0x05B8,
+ qamats29: 0x05B8,
+ qamats33: 0x05B8,
+ qamatsde: 0x05B8,
+ qamatshebrew: 0x05B8,
+ qamatsnarrowhebrew: 0x05B8,
+ qamatsqatanhebrew: 0x05B8,
+ qamatsqatannarrowhebrew: 0x05B8,
+ qamatsqatanquarterhebrew: 0x05B8,
+ qamatsqatanwidehebrew: 0x05B8,
+ qamatsquarterhebrew: 0x05B8,
+ qamatswidehebrew: 0x05B8,
+ qarneyparahebrew: 0x059F,
+ qbopomofo: 0x3111,
+ qcircle: 0x24E0,
+ qhook: 0x02A0,
+ qmonospace: 0xFF51,
+ qof: 0x05E7,
+ qofdagesh: 0xFB47,
+ qofdageshhebrew: 0xFB47,
+ qofhebrew: 0x05E7,
+ qparen: 0x24AC,
+ quarternote: 0x2669,
+ qubuts: 0x05BB,
+ qubuts18: 0x05BB,
+ qubuts25: 0x05BB,
+ qubuts31: 0x05BB,
+ qubutshebrew: 0x05BB,
+ qubutsnarrowhebrew: 0x05BB,
+ qubutsquarterhebrew: 0x05BB,
+ qubutswidehebrew: 0x05BB,
+ question: 0x003F,
+ questionarabic: 0x061F,
+ questionarmenian: 0x055E,
+ questiondown: 0x00BF,
+ questiondownsmall: 0xF7BF,
+ questiongreek: 0x037E,
+ questionmonospace: 0xFF1F,
+ questionsmall: 0xF73F,
+ quotedbl: 0x0022,
+ quotedblbase: 0x201E,
+ quotedblleft: 0x201C,
+ quotedblmonospace: 0xFF02,
+ quotedblprime: 0x301E,
+ quotedblprimereversed: 0x301D,
+ quotedblright: 0x201D,
+ quoteleft: 0x2018,
+ quoteleftreversed: 0x201B,
+ quotereversed: 0x201B,
+ quoteright: 0x2019,
+ quoterightn: 0x0149,
+ quotesinglbase: 0x201A,
+ quotesingle: 0x0027,
+ quotesinglemonospace: 0xFF07,
+ r: 0x0072,
+ raarmenian: 0x057C,
+ rabengali: 0x09B0,
+ racute: 0x0155,
+ radeva: 0x0930,
+ radical: 0x221A,
+ radicalex: 0xF8E5,
+ radoverssquare: 0x33AE,
+ radoverssquaredsquare: 0x33AF,
+ radsquare: 0x33AD,
+ rafe: 0x05BF,
+ rafehebrew: 0x05BF,
+ ragujarati: 0x0AB0,
+ ragurmukhi: 0x0A30,
+ rahiragana: 0x3089,
+ rakatakana: 0x30E9,
+ rakatakanahalfwidth: 0xFF97,
+ ralowerdiagonalbengali: 0x09F1,
+ ramiddlediagonalbengali: 0x09F0,
+ ramshorn: 0x0264,
+ ratio: 0x2236,
+ rbopomofo: 0x3116,
+ rcaron: 0x0159,
+ rcedilla: 0x0157,
+ rcircle: 0x24E1,
+ rcommaaccent: 0x0157,
+ rdblgrave: 0x0211,
+ rdotaccent: 0x1E59,
+ rdotbelow: 0x1E5B,
+ rdotbelowmacron: 0x1E5D,
+ referencemark: 0x203B,
+ reflexsubset: 0x2286,
+ reflexsuperset: 0x2287,
+ registered: 0x00AE,
+ registersans: 0xF8E8,
+ registerserif: 0xF6DA,
+ reharabic: 0x0631,
+ reharmenian: 0x0580,
+ rehfinalarabic: 0xFEAE,
+ rehiragana: 0x308C,
+ rekatakana: 0x30EC,
+ rekatakanahalfwidth: 0xFF9A,
+ resh: 0x05E8,
+ reshdageshhebrew: 0xFB48,
+ reshhebrew: 0x05E8,
+ reversedtilde: 0x223D,
+ reviahebrew: 0x0597,
+ reviamugrashhebrew: 0x0597,
+ revlogicalnot: 0x2310,
+ rfishhook: 0x027E,
+ rfishhookreversed: 0x027F,
+ rhabengali: 0x09DD,
+ rhadeva: 0x095D,
+ rho: 0x03C1,
+ rhook: 0x027D,
+ rhookturned: 0x027B,
+ rhookturnedsuperior: 0x02B5,
+ rhosymbolgreek: 0x03F1,
+ rhotichookmod: 0x02DE,
+ rieulacirclekorean: 0x3271,
+ rieulaparenkorean: 0x3211,
+ rieulcirclekorean: 0x3263,
+ rieulhieuhkorean: 0x3140,
+ rieulkiyeokkorean: 0x313A,
+ rieulkiyeoksioskorean: 0x3169,
+ rieulkorean: 0x3139,
+ rieulmieumkorean: 0x313B,
+ rieulpansioskorean: 0x316C,
+ rieulparenkorean: 0x3203,
+ rieulphieuphkorean: 0x313F,
+ rieulpieupkorean: 0x313C,
+ rieulpieupsioskorean: 0x316B,
+ rieulsioskorean: 0x313D,
+ rieulthieuthkorean: 0x313E,
+ rieultikeutkorean: 0x316A,
+ rieulyeorinhieuhkorean: 0x316D,
+ rightangle: 0x221F,
+ righttackbelowcmb: 0x0319,
+ righttriangle: 0x22BF,
+ rihiragana: 0x308A,
+ rikatakana: 0x30EA,
+ rikatakanahalfwidth: 0xFF98,
+ ring: 0x02DA,
+ ringbelowcmb: 0x0325,
+ ringcmb: 0x030A,
+ ringhalfleft: 0x02BF,
+ ringhalfleftarmenian: 0x0559,
+ ringhalfleftbelowcmb: 0x031C,
+ ringhalfleftcentered: 0x02D3,
+ ringhalfright: 0x02BE,
+ ringhalfrightbelowcmb: 0x0339,
+ ringhalfrightcentered: 0x02D2,
+ rinvertedbreve: 0x0213,
+ rittorusquare: 0x3351,
+ rlinebelow: 0x1E5F,
+ rlongleg: 0x027C,
+ rlonglegturned: 0x027A,
+ rmonospace: 0xFF52,
+ rohiragana: 0x308D,
+ rokatakana: 0x30ED,
+ rokatakanahalfwidth: 0xFF9B,
+ roruathai: 0x0E23,
+ rparen: 0x24AD,
+ rrabengali: 0x09DC,
+ rradeva: 0x0931,
+ rragurmukhi: 0x0A5C,
+ rreharabic: 0x0691,
+ rrehfinalarabic: 0xFB8D,
+ rrvocalicbengali: 0x09E0,
+ rrvocalicdeva: 0x0960,
+ rrvocalicgujarati: 0x0AE0,
+ rrvocalicvowelsignbengali: 0x09C4,
+ rrvocalicvowelsigndeva: 0x0944,
+ rrvocalicvowelsigngujarati: 0x0AC4,
+ rsuperior: 0xF6F1,
+ rtblock: 0x2590,
+ rturned: 0x0279,
+ rturnedsuperior: 0x02B4,
+ ruhiragana: 0x308B,
+ rukatakana: 0x30EB,
+ rukatakanahalfwidth: 0xFF99,
+ rupeemarkbengali: 0x09F2,
+ rupeesignbengali: 0x09F3,
+ rupiah: 0xF6DD,
+ ruthai: 0x0E24,
+ rvocalicbengali: 0x098B,
+ rvocalicdeva: 0x090B,
+ rvocalicgujarati: 0x0A8B,
+ rvocalicvowelsignbengali: 0x09C3,
+ rvocalicvowelsigndeva: 0x0943,
+ rvocalicvowelsigngujarati: 0x0AC3,
+ s: 0x0073,
+ sabengali: 0x09B8,
+ sacute: 0x015B,
+ sacutedotaccent: 0x1E65,
+ sadarabic: 0x0635,
+ sadeva: 0x0938,
+ sadfinalarabic: 0xFEBA,
+ sadinitialarabic: 0xFEBB,
+ sadmedialarabic: 0xFEBC,
+ sagujarati: 0x0AB8,
+ sagurmukhi: 0x0A38,
+ sahiragana: 0x3055,
+ sakatakana: 0x30B5,
+ sakatakanahalfwidth: 0xFF7B,
+ sallallahoualayhewasallamarabic: 0xFDFA,
+ samekh: 0x05E1,
+ samekhdagesh: 0xFB41,
+ samekhdageshhebrew: 0xFB41,
+ samekhhebrew: 0x05E1,
+ saraaathai: 0x0E32,
+ saraaethai: 0x0E41,
+ saraaimaimalaithai: 0x0E44,
+ saraaimaimuanthai: 0x0E43,
+ saraamthai: 0x0E33,
+ saraathai: 0x0E30,
+ saraethai: 0x0E40,
+ saraiileftthai: 0xF886,
+ saraiithai: 0x0E35,
+ saraileftthai: 0xF885,
+ saraithai: 0x0E34,
+ saraothai: 0x0E42,
+ saraueeleftthai: 0xF888,
+ saraueethai: 0x0E37,
+ saraueleftthai: 0xF887,
+ sarauethai: 0x0E36,
+ sarauthai: 0x0E38,
+ sarauuthai: 0x0E39,
+ sbopomofo: 0x3119,
+ scaron: 0x0161,
+ scarondotaccent: 0x1E67,
+ scedilla: 0x015F,
+ schwa: 0x0259,
+ schwacyrillic: 0x04D9,
+ schwadieresiscyrillic: 0x04DB,
+ schwahook: 0x025A,
+ scircle: 0x24E2,
+ scircumflex: 0x015D,
+ scommaaccent: 0x0219,
+ sdotaccent: 0x1E61,
+ sdotbelow: 0x1E63,
+ sdotbelowdotaccent: 0x1E69,
+ seagullbelowcmb: 0x033C,
+ second: 0x2033,
+ secondtonechinese: 0x02CA,
+ section: 0x00A7,
+ seenarabic: 0x0633,
+ seenfinalarabic: 0xFEB2,
+ seeninitialarabic: 0xFEB3,
+ seenmedialarabic: 0xFEB4,
+ segol: 0x05B6,
+ segol13: 0x05B6,
+ segol1f: 0x05B6,
+ segol2c: 0x05B6,
+ segolhebrew: 0x05B6,
+ segolnarrowhebrew: 0x05B6,
+ segolquarterhebrew: 0x05B6,
+ segoltahebrew: 0x0592,
+ segolwidehebrew: 0x05B6,
+ seharmenian: 0x057D,
+ sehiragana: 0x305B,
+ sekatakana: 0x30BB,
+ sekatakanahalfwidth: 0xFF7E,
+ semicolon: 0x003B,
+ semicolonarabic: 0x061B,
+ semicolonmonospace: 0xFF1B,
+ semicolonsmall: 0xFE54,
+ semivoicedmarkkana: 0x309C,
+ semivoicedmarkkanahalfwidth: 0xFF9F,
+ sentisquare: 0x3322,
+ sentosquare: 0x3323,
+ seven: 0x0037,
+ sevenarabic: 0x0667,
+ sevenbengali: 0x09ED,
+ sevencircle: 0x2466,
+ sevencircleinversesansserif: 0x2790,
+ sevendeva: 0x096D,
+ seveneighths: 0x215E,
+ sevengujarati: 0x0AED,
+ sevengurmukhi: 0x0A6D,
+ sevenhackarabic: 0x0667,
+ sevenhangzhou: 0x3027,
+ sevenideographicparen: 0x3226,
+ seveninferior: 0x2087,
+ sevenmonospace: 0xFF17,
+ sevenoldstyle: 0xF737,
+ sevenparen: 0x247A,
+ sevenperiod: 0x248E,
+ sevenpersian: 0x06F7,
+ sevenroman: 0x2176,
+ sevensuperior: 0x2077,
+ seventeencircle: 0x2470,
+ seventeenparen: 0x2484,
+ seventeenperiod: 0x2498,
+ seventhai: 0x0E57,
+ sfthyphen: 0x00AD,
+ shaarmenian: 0x0577,
+ shabengali: 0x09B6,
+ shacyrillic: 0x0448,
+ shaddaarabic: 0x0651,
+ shaddadammaarabic: 0xFC61,
+ shaddadammatanarabic: 0xFC5E,
+ shaddafathaarabic: 0xFC60,
+ shaddakasraarabic: 0xFC62,
+ shaddakasratanarabic: 0xFC5F,
+ shade: 0x2592,
+ shadedark: 0x2593,
+ shadelight: 0x2591,
+ shademedium: 0x2592,
+ shadeva: 0x0936,
+ shagujarati: 0x0AB6,
+ shagurmukhi: 0x0A36,
+ shalshelethebrew: 0x0593,
+ shbopomofo: 0x3115,
+ shchacyrillic: 0x0449,
+ sheenarabic: 0x0634,
+ sheenfinalarabic: 0xFEB6,
+ sheeninitialarabic: 0xFEB7,
+ sheenmedialarabic: 0xFEB8,
+ sheicoptic: 0x03E3,
+ sheqel: 0x20AA,
+ sheqelhebrew: 0x20AA,
+ sheva: 0x05B0,
+ sheva115: 0x05B0,
+ sheva15: 0x05B0,
+ sheva22: 0x05B0,
+ sheva2e: 0x05B0,
+ shevahebrew: 0x05B0,
+ shevanarrowhebrew: 0x05B0,
+ shevaquarterhebrew: 0x05B0,
+ shevawidehebrew: 0x05B0,
+ shhacyrillic: 0x04BB,
+ shimacoptic: 0x03ED,
+ shin: 0x05E9,
+ shindagesh: 0xFB49,
+ shindageshhebrew: 0xFB49,
+ shindageshshindot: 0xFB2C,
+ shindageshshindothebrew: 0xFB2C,
+ shindageshsindot: 0xFB2D,
+ shindageshsindothebrew: 0xFB2D,
+ shindothebrew: 0x05C1,
+ shinhebrew: 0x05E9,
+ shinshindot: 0xFB2A,
+ shinshindothebrew: 0xFB2A,
+ shinsindot: 0xFB2B,
+ shinsindothebrew: 0xFB2B,
+ shook: 0x0282,
+ sigma: 0x03C3,
+ sigma1: 0x03C2,
+ sigmafinal: 0x03C2,
+ sigmalunatesymbolgreek: 0x03F2,
+ sihiragana: 0x3057,
+ sikatakana: 0x30B7,
+ sikatakanahalfwidth: 0xFF7C,
+ siluqhebrew: 0x05BD,
+ siluqlefthebrew: 0x05BD,
+ similar: 0x223C,
+ sindothebrew: 0x05C2,
+ siosacirclekorean: 0x3274,
+ siosaparenkorean: 0x3214,
+ sioscieuckorean: 0x317E,
+ sioscirclekorean: 0x3266,
+ sioskiyeokkorean: 0x317A,
+ sioskorean: 0x3145,
+ siosnieunkorean: 0x317B,
+ siosparenkorean: 0x3206,
+ siospieupkorean: 0x317D,
+ siostikeutkorean: 0x317C,
+ six: 0x0036,
+ sixarabic: 0x0666,
+ sixbengali: 0x09EC,
+ sixcircle: 0x2465,
+ sixcircleinversesansserif: 0x278F,
+ sixdeva: 0x096C,
+ sixgujarati: 0x0AEC,
+ sixgurmukhi: 0x0A6C,
+ sixhackarabic: 0x0666,
+ sixhangzhou: 0x3026,
+ sixideographicparen: 0x3225,
+ sixinferior: 0x2086,
+ sixmonospace: 0xFF16,
+ sixoldstyle: 0xF736,
+ sixparen: 0x2479,
+ sixperiod: 0x248D,
+ sixpersian: 0x06F6,
+ sixroman: 0x2175,
+ sixsuperior: 0x2076,
+ sixteencircle: 0x246F,
+ sixteencurrencydenominatorbengali: 0x09F9,
+ sixteenparen: 0x2483,
+ sixteenperiod: 0x2497,
+ sixthai: 0x0E56,
+ slash: 0x002F,
+ slashmonospace: 0xFF0F,
+ slong: 0x017F,
+ slongdotaccent: 0x1E9B,
+ smileface: 0x263A,
+ smonospace: 0xFF53,
+ sofpasuqhebrew: 0x05C3,
+ softhyphen: 0x00AD,
+ softsigncyrillic: 0x044C,
+ sohiragana: 0x305D,
+ sokatakana: 0x30BD,
+ sokatakanahalfwidth: 0xFF7F,
+ soliduslongoverlaycmb: 0x0338,
+ solidusshortoverlaycmb: 0x0337,
+ sorusithai: 0x0E29,
+ sosalathai: 0x0E28,
+ sosothai: 0x0E0B,
+ sosuathai: 0x0E2A,
+ space: 0x0020,
+ spacehackarabic: 0x0020,
+ spade: 0x2660,
+ spadesuitblack: 0x2660,
+ spadesuitwhite: 0x2664,
+ sparen: 0x24AE,
+ squarebelowcmb: 0x033B,
+ squarecc: 0x33C4,
+ squarecm: 0x339D,
+ squarediagonalcrosshatchfill: 0x25A9,
+ squarehorizontalfill: 0x25A4,
+ squarekg: 0x338F,
+ squarekm: 0x339E,
+ squarekmcapital: 0x33CE,
+ squareln: 0x33D1,
+ squarelog: 0x33D2,
+ squaremg: 0x338E,
+ squaremil: 0x33D5,
+ squaremm: 0x339C,
+ squaremsquared: 0x33A1,
+ squareorthogonalcrosshatchfill: 0x25A6,
+ squareupperlefttolowerrightfill: 0x25A7,
+ squareupperrighttolowerleftfill: 0x25A8,
+ squareverticalfill: 0x25A5,
+ squarewhitewithsmallblack: 0x25A3,
+ srsquare: 0x33DB,
+ ssabengali: 0x09B7,
+ ssadeva: 0x0937,
+ ssagujarati: 0x0AB7,
+ ssangcieuckorean: 0x3149,
+ ssanghieuhkorean: 0x3185,
+ ssangieungkorean: 0x3180,
+ ssangkiyeokkorean: 0x3132,
+ ssangnieunkorean: 0x3165,
+ ssangpieupkorean: 0x3143,
+ ssangsioskorean: 0x3146,
+ ssangtikeutkorean: 0x3138,
+ ssuperior: 0xF6F2,
+ sterling: 0x00A3,
+ sterlingmonospace: 0xFFE1,
+ strokelongoverlaycmb: 0x0336,
+ strokeshortoverlaycmb: 0x0335,
+ subset: 0x2282,
+ subsetnotequal: 0x228A,
+ subsetorequal: 0x2286,
+ succeeds: 0x227B,
+ suchthat: 0x220B,
+ suhiragana: 0x3059,
+ sukatakana: 0x30B9,
+ sukatakanahalfwidth: 0xFF7D,
+ sukunarabic: 0x0652,
+ summation: 0x2211,
+ sun: 0x263C,
+ superset: 0x2283,
+ supersetnotequal: 0x228B,
+ supersetorequal: 0x2287,
+ svsquare: 0x33DC,
+ syouwaerasquare: 0x337C,
+ t: 0x0074,
+ tabengali: 0x09A4,
+ tackdown: 0x22A4,
+ tackleft: 0x22A3,
+ tadeva: 0x0924,
+ tagujarati: 0x0AA4,
+ tagurmukhi: 0x0A24,
+ taharabic: 0x0637,
+ tahfinalarabic: 0xFEC2,
+ tahinitialarabic: 0xFEC3,
+ tahiragana: 0x305F,
+ tahmedialarabic: 0xFEC4,
+ taisyouerasquare: 0x337D,
+ takatakana: 0x30BF,
+ takatakanahalfwidth: 0xFF80,
+ tatweelarabic: 0x0640,
+ tau: 0x03C4,
+ tav: 0x05EA,
+ tavdages: 0xFB4A,
+ tavdagesh: 0xFB4A,
+ tavdageshhebrew: 0xFB4A,
+ tavhebrew: 0x05EA,
+ tbar: 0x0167,
+ tbopomofo: 0x310A,
+ tcaron: 0x0165,
+ tccurl: 0x02A8,
+ tcedilla: 0x0163,
+ tcheharabic: 0x0686,
+ tchehfinalarabic: 0xFB7B,
+ tchehinitialarabic: 0xFB7C,
+ tchehmedialarabic: 0xFB7D,
+ tcircle: 0x24E3,
+ tcircumflexbelow: 0x1E71,
+ tcommaaccent: 0x0163,
+ tdieresis: 0x1E97,
+ tdotaccent: 0x1E6B,
+ tdotbelow: 0x1E6D,
+ tecyrillic: 0x0442,
+ tedescendercyrillic: 0x04AD,
+ teharabic: 0x062A,
+ tehfinalarabic: 0xFE96,
+ tehhahinitialarabic: 0xFCA2,
+ tehhahisolatedarabic: 0xFC0C,
+ tehinitialarabic: 0xFE97,
+ tehiragana: 0x3066,
+ tehjeeminitialarabic: 0xFCA1,
+ tehjeemisolatedarabic: 0xFC0B,
+ tehmarbutaarabic: 0x0629,
+ tehmarbutafinalarabic: 0xFE94,
+ tehmedialarabic: 0xFE98,
+ tehmeeminitialarabic: 0xFCA4,
+ tehmeemisolatedarabic: 0xFC0E,
+ tehnoonfinalarabic: 0xFC73,
+ tekatakana: 0x30C6,
+ tekatakanahalfwidth: 0xFF83,
+ telephone: 0x2121,
+ telephoneblack: 0x260E,
+ telishagedolahebrew: 0x05A0,
+ telishaqetanahebrew: 0x05A9,
+ tencircle: 0x2469,
+ tenideographicparen: 0x3229,
+ tenparen: 0x247D,
+ tenperiod: 0x2491,
+ tenroman: 0x2179,
+ tesh: 0x02A7,
+ tet: 0x05D8,
+ tetdagesh: 0xFB38,
+ tetdageshhebrew: 0xFB38,
+ tethebrew: 0x05D8,
+ tetsecyrillic: 0x04B5,
+ tevirhebrew: 0x059B,
+ tevirlefthebrew: 0x059B,
+ thabengali: 0x09A5,
+ thadeva: 0x0925,
+ thagujarati: 0x0AA5,
+ thagurmukhi: 0x0A25,
+ thalarabic: 0x0630,
+ thalfinalarabic: 0xFEAC,
+ thanthakhatlowleftthai: 0xF898,
+ thanthakhatlowrightthai: 0xF897,
+ thanthakhatthai: 0x0E4C,
+ thanthakhatupperleftthai: 0xF896,
+ theharabic: 0x062B,
+ thehfinalarabic: 0xFE9A,
+ thehinitialarabic: 0xFE9B,
+ thehmedialarabic: 0xFE9C,
+ thereexists: 0x2203,
+ therefore: 0x2234,
+ theta: 0x03B8,
+ theta1: 0x03D1,
+ thetasymbolgreek: 0x03D1,
+ thieuthacirclekorean: 0x3279,
+ thieuthaparenkorean: 0x3219,
+ thieuthcirclekorean: 0x326B,
+ thieuthkorean: 0x314C,
+ thieuthparenkorean: 0x320B,
+ thirteencircle: 0x246C,
+ thirteenparen: 0x2480,
+ thirteenperiod: 0x2494,
+ thonangmonthothai: 0x0E11,
+ thook: 0x01AD,
+ thophuthaothai: 0x0E12,
+ thorn: 0x00FE,
+ thothahanthai: 0x0E17,
+ thothanthai: 0x0E10,
+ thothongthai: 0x0E18,
+ thothungthai: 0x0E16,
+ thousandcyrillic: 0x0482,
+ thousandsseparatorarabic: 0x066C,
+ thousandsseparatorpersian: 0x066C,
+ three: 0x0033,
+ threearabic: 0x0663,
+ threebengali: 0x09E9,
+ threecircle: 0x2462,
+ threecircleinversesansserif: 0x278C,
+ threedeva: 0x0969,
+ threeeighths: 0x215C,
+ threegujarati: 0x0AE9,
+ threegurmukhi: 0x0A69,
+ threehackarabic: 0x0663,
+ threehangzhou: 0x3023,
+ threeideographicparen: 0x3222,
+ threeinferior: 0x2083,
+ threemonospace: 0xFF13,
+ threenumeratorbengali: 0x09F6,
+ threeoldstyle: 0xF733,
+ threeparen: 0x2476,
+ threeperiod: 0x248A,
+ threepersian: 0x06F3,
+ threequarters: 0x00BE,
+ threequartersemdash: 0xF6DE,
+ threeroman: 0x2172,
+ threesuperior: 0x00B3,
+ threethai: 0x0E53,
+ thzsquare: 0x3394,
+ tihiragana: 0x3061,
+ tikatakana: 0x30C1,
+ tikatakanahalfwidth: 0xFF81,
+ tikeutacirclekorean: 0x3270,
+ tikeutaparenkorean: 0x3210,
+ tikeutcirclekorean: 0x3262,
+ tikeutkorean: 0x3137,
+ tikeutparenkorean: 0x3202,
+ tilde: 0x02DC,
+ tildebelowcmb: 0x0330,
+ tildecmb: 0x0303,
+ tildecomb: 0x0303,
+ tildedoublecmb: 0x0360,
+ tildeoperator: 0x223C,
+ tildeoverlaycmb: 0x0334,
+ tildeverticalcmb: 0x033E,
+ timescircle: 0x2297,
+ tipehahebrew: 0x0596,
+ tipehalefthebrew: 0x0596,
+ tippigurmukhi: 0x0A70,
+ titlocyrilliccmb: 0x0483,
+ tiwnarmenian: 0x057F,
+ tlinebelow: 0x1E6F,
+ tmonospace: 0xFF54,
+ toarmenian: 0x0569,
+ tohiragana: 0x3068,
+ tokatakana: 0x30C8,
+ tokatakanahalfwidth: 0xFF84,
+ tonebarextrahighmod: 0x02E5,
+ tonebarextralowmod: 0x02E9,
+ tonebarhighmod: 0x02E6,
+ tonebarlowmod: 0x02E8,
+ tonebarmidmod: 0x02E7,
+ tonefive: 0x01BD,
+ tonesix: 0x0185,
+ tonetwo: 0x01A8,
+ tonos: 0x0384,
+ tonsquare: 0x3327,
+ topatakthai: 0x0E0F,
+ tortoiseshellbracketleft: 0x3014,
+ tortoiseshellbracketleftsmall: 0xFE5D,
+ tortoiseshellbracketleftvertical: 0xFE39,
+ tortoiseshellbracketright: 0x3015,
+ tortoiseshellbracketrightsmall: 0xFE5E,
+ tortoiseshellbracketrightvertical: 0xFE3A,
+ totaothai: 0x0E15,
+ tpalatalhook: 0x01AB,
+ tparen: 0x24AF,
+ trademark: 0x2122,
+ trademarksans: 0xF8EA,
+ trademarkserif: 0xF6DB,
+ tretroflexhook: 0x0288,
+ triagdn: 0x25BC,
+ triaglf: 0x25C4,
+ triagrt: 0x25BA,
+ triagup: 0x25B2,
+ ts: 0x02A6,
+ tsadi: 0x05E6,
+ tsadidagesh: 0xFB46,
+ tsadidageshhebrew: 0xFB46,
+ tsadihebrew: 0x05E6,
+ tsecyrillic: 0x0446,
+ tsere: 0x05B5,
+ tsere12: 0x05B5,
+ tsere1e: 0x05B5,
+ tsere2b: 0x05B5,
+ tserehebrew: 0x05B5,
+ tserenarrowhebrew: 0x05B5,
+ tserequarterhebrew: 0x05B5,
+ tserewidehebrew: 0x05B5,
+ tshecyrillic: 0x045B,
+ tsuperior: 0xF6F3,
+ ttabengali: 0x099F,
+ ttadeva: 0x091F,
+ ttagujarati: 0x0A9F,
+ ttagurmukhi: 0x0A1F,
+ tteharabic: 0x0679,
+ ttehfinalarabic: 0xFB67,
+ ttehinitialarabic: 0xFB68,
+ ttehmedialarabic: 0xFB69,
+ tthabengali: 0x09A0,
+ tthadeva: 0x0920,
+ tthagujarati: 0x0AA0,
+ tthagurmukhi: 0x0A20,
+ tturned: 0x0287,
+ tuhiragana: 0x3064,
+ tukatakana: 0x30C4,
+ tukatakanahalfwidth: 0xFF82,
+ tusmallhiragana: 0x3063,
+ tusmallkatakana: 0x30C3,
+ tusmallkatakanahalfwidth: 0xFF6F,
+ twelvecircle: 0x246B,
+ twelveparen: 0x247F,
+ twelveperiod: 0x2493,
+ twelveroman: 0x217B,
+ twentycircle: 0x2473,
+ twentyhangzhou: 0x5344,
+ twentyparen: 0x2487,
+ twentyperiod: 0x249B,
+ two: 0x0032,
+ twoarabic: 0x0662,
+ twobengali: 0x09E8,
+ twocircle: 0x2461,
+ twocircleinversesansserif: 0x278B,
+ twodeva: 0x0968,
+ twodotenleader: 0x2025,
+ twodotleader: 0x2025,
+ twodotleadervertical: 0xFE30,
+ twogujarati: 0x0AE8,
+ twogurmukhi: 0x0A68,
+ twohackarabic: 0x0662,
+ twohangzhou: 0x3022,
+ twoideographicparen: 0x3221,
+ twoinferior: 0x2082,
+ twomonospace: 0xFF12,
+ twonumeratorbengali: 0x09F5,
+ twooldstyle: 0xF732,
+ twoparen: 0x2475,
+ twoperiod: 0x2489,
+ twopersian: 0x06F2,
+ tworoman: 0x2171,
+ twostroke: 0x01BB,
+ twosuperior: 0x00B2,
+ twothai: 0x0E52,
+ twothirds: 0x2154,
+ u: 0x0075,
+ uacute: 0x00FA,
+ ubar: 0x0289,
+ ubengali: 0x0989,
+ ubopomofo: 0x3128,
+ ubreve: 0x016D,
+ ucaron: 0x01D4,
+ ucircle: 0x24E4,
+ ucircumflex: 0x00FB,
+ ucircumflexbelow: 0x1E77,
+ ucyrillic: 0x0443,
+ udattadeva: 0x0951,
+ udblacute: 0x0171,
+ udblgrave: 0x0215,
+ udeva: 0x0909,
+ udieresis: 0x00FC,
+ udieresisacute: 0x01D8,
+ udieresisbelow: 0x1E73,
+ udieresiscaron: 0x01DA,
+ udieresiscyrillic: 0x04F1,
+ udieresisgrave: 0x01DC,
+ udieresismacron: 0x01D6,
+ udotbelow: 0x1EE5,
+ ugrave: 0x00F9,
+ ugujarati: 0x0A89,
+ ugurmukhi: 0x0A09,
+ uhiragana: 0x3046,
+ uhookabove: 0x1EE7,
+ uhorn: 0x01B0,
+ uhornacute: 0x1EE9,
+ uhorndotbelow: 0x1EF1,
+ uhorngrave: 0x1EEB,
+ uhornhookabove: 0x1EED,
+ uhorntilde: 0x1EEF,
+ uhungarumlaut: 0x0171,
+ uhungarumlautcyrillic: 0x04F3,
+ uinvertedbreve: 0x0217,
+ ukatakana: 0x30A6,
+ ukatakanahalfwidth: 0xFF73,
+ ukcyrillic: 0x0479,
+ ukorean: 0x315C,
+ umacron: 0x016B,
+ umacroncyrillic: 0x04EF,
+ umacrondieresis: 0x1E7B,
+ umatragurmukhi: 0x0A41,
+ umonospace: 0xFF55,
+ underscore: 0x005F,
+ underscoredbl: 0x2017,
+ underscoremonospace: 0xFF3F,
+ underscorevertical: 0xFE33,
+ underscorewavy: 0xFE4F,
+ union: 0x222A,
+ universal: 0x2200,
+ uogonek: 0x0173,
+ uparen: 0x24B0,
+ upblock: 0x2580,
+ upperdothebrew: 0x05C4,
+ upsilon: 0x03C5,
+ upsilondieresis: 0x03CB,
+ upsilondieresistonos: 0x03B0,
+ upsilonlatin: 0x028A,
+ upsilontonos: 0x03CD,
+ uptackbelowcmb: 0x031D,
+ uptackmod: 0x02D4,
+ uragurmukhi: 0x0A73,
+ uring: 0x016F,
+ ushortcyrillic: 0x045E,
+ usmallhiragana: 0x3045,
+ usmallkatakana: 0x30A5,
+ usmallkatakanahalfwidth: 0xFF69,
+ ustraightcyrillic: 0x04AF,
+ ustraightstrokecyrillic: 0x04B1,
+ utilde: 0x0169,
+ utildeacute: 0x1E79,
+ utildebelow: 0x1E75,
+ uubengali: 0x098A,
+ uudeva: 0x090A,
+ uugujarati: 0x0A8A,
+ uugurmukhi: 0x0A0A,
+ uumatragurmukhi: 0x0A42,
+ uuvowelsignbengali: 0x09C2,
+ uuvowelsigndeva: 0x0942,
+ uuvowelsigngujarati: 0x0AC2,
+ uvowelsignbengali: 0x09C1,
+ uvowelsigndeva: 0x0941,
+ uvowelsigngujarati: 0x0AC1,
+ v: 0x0076,
+ vadeva: 0x0935,
+ vagujarati: 0x0AB5,
+ vagurmukhi: 0x0A35,
+ vakatakana: 0x30F7,
+ vav: 0x05D5,
+ vavdagesh: 0xFB35,
+ vavdagesh65: 0xFB35,
+ vavdageshhebrew: 0xFB35,
+ vavhebrew: 0x05D5,
+ vavholam: 0xFB4B,
+ vavholamhebrew: 0xFB4B,
+ vavvavhebrew: 0x05F0,
+ vavyodhebrew: 0x05F1,
+ vcircle: 0x24E5,
+ vdotbelow: 0x1E7F,
+ vecyrillic: 0x0432,
+ veharabic: 0x06A4,
+ vehfinalarabic: 0xFB6B,
+ vehinitialarabic: 0xFB6C,
+ vehmedialarabic: 0xFB6D,
+ vekatakana: 0x30F9,
+ venus: 0x2640,
+ verticalbar: 0x007C,
+ verticallineabovecmb: 0x030D,
+ verticallinebelowcmb: 0x0329,
+ verticallinelowmod: 0x02CC,
+ verticallinemod: 0x02C8,
+ vewarmenian: 0x057E,
+ vhook: 0x028B,
+ vikatakana: 0x30F8,
+ viramabengali: 0x09CD,
+ viramadeva: 0x094D,
+ viramagujarati: 0x0ACD,
+ visargabengali: 0x0983,
+ visargadeva: 0x0903,
+ visargagujarati: 0x0A83,
+ vmonospace: 0xFF56,
+ voarmenian: 0x0578,
+ voicediterationhiragana: 0x309E,
+ voicediterationkatakana: 0x30FE,
+ voicedmarkkana: 0x309B,
+ voicedmarkkanahalfwidth: 0xFF9E,
+ vokatakana: 0x30FA,
+ vparen: 0x24B1,
+ vtilde: 0x1E7D,
+ vturned: 0x028C,
+ vuhiragana: 0x3094,
+ vukatakana: 0x30F4,
+ w: 0x0077,
+ wacute: 0x1E83,
+ waekorean: 0x3159,
+ wahiragana: 0x308F,
+ wakatakana: 0x30EF,
+ wakatakanahalfwidth: 0xFF9C,
+ wakorean: 0x3158,
+ wasmallhiragana: 0x308E,
+ wasmallkatakana: 0x30EE,
+ wattosquare: 0x3357,
+ wavedash: 0x301C,
+ wavyunderscorevertical: 0xFE34,
+ wawarabic: 0x0648,
+ wawfinalarabic: 0xFEEE,
+ wawhamzaabovearabic: 0x0624,
+ wawhamzaabovefinalarabic: 0xFE86,
+ wbsquare: 0x33DD,
+ wcircle: 0x24E6,
+ wcircumflex: 0x0175,
+ wdieresis: 0x1E85,
+ wdotaccent: 0x1E87,
+ wdotbelow: 0x1E89,
+ wehiragana: 0x3091,
+ weierstrass: 0x2118,
+ wekatakana: 0x30F1,
+ wekorean: 0x315E,
+ weokorean: 0x315D,
+ wgrave: 0x1E81,
+ whitebullet: 0x25E6,
+ whitecircle: 0x25CB,
+ whitecircleinverse: 0x25D9,
+ whitecornerbracketleft: 0x300E,
+ whitecornerbracketleftvertical: 0xFE43,
+ whitecornerbracketright: 0x300F,
+ whitecornerbracketrightvertical: 0xFE44,
+ whitediamond: 0x25C7,
+ whitediamondcontainingblacksmalldiamond: 0x25C8,
+ whitedownpointingsmalltriangle: 0x25BF,
+ whitedownpointingtriangle: 0x25BD,
+ whiteleftpointingsmalltriangle: 0x25C3,
+ whiteleftpointingtriangle: 0x25C1,
+ whitelenticularbracketleft: 0x3016,
+ whitelenticularbracketright: 0x3017,
+ whiterightpointingsmalltriangle: 0x25B9,
+ whiterightpointingtriangle: 0x25B7,
+ whitesmallsquare: 0x25AB,
+ whitesmilingface: 0x263A,
+ whitesquare: 0x25A1,
+ whitestar: 0x2606,
+ whitetelephone: 0x260F,
+ whitetortoiseshellbracketleft: 0x3018,
+ whitetortoiseshellbracketright: 0x3019,
+ whiteuppointingsmalltriangle: 0x25B5,
+ whiteuppointingtriangle: 0x25B3,
+ wihiragana: 0x3090,
+ wikatakana: 0x30F0,
+ wikorean: 0x315F,
+ wmonospace: 0xFF57,
+ wohiragana: 0x3092,
+ wokatakana: 0x30F2,
+ wokatakanahalfwidth: 0xFF66,
+ won: 0x20A9,
+ wonmonospace: 0xFFE6,
+ wowaenthai: 0x0E27,
+ wparen: 0x24B2,
+ wring: 0x1E98,
+ wsuperior: 0x02B7,
+ wturned: 0x028D,
+ wynn: 0x01BF,
+ x: 0x0078,
+ xabovecmb: 0x033D,
+ xbopomofo: 0x3112,
+ xcircle: 0x24E7,
+ xdieresis: 0x1E8D,
+ xdotaccent: 0x1E8B,
+ xeharmenian: 0x056D,
+ xi: 0x03BE,
+ xmonospace: 0xFF58,
+ xparen: 0x24B3,
+ xsuperior: 0x02E3,
+ y: 0x0079,
+ yaadosquare: 0x334E,
+ yabengali: 0x09AF,
+ yacute: 0x00FD,
+ yadeva: 0x092F,
+ yaekorean: 0x3152,
+ yagujarati: 0x0AAF,
+ yagurmukhi: 0x0A2F,
+ yahiragana: 0x3084,
+ yakatakana: 0x30E4,
+ yakatakanahalfwidth: 0xFF94,
+ yakorean: 0x3151,
+ yamakkanthai: 0x0E4E,
+ yasmallhiragana: 0x3083,
+ yasmallkatakana: 0x30E3,
+ yasmallkatakanahalfwidth: 0xFF6C,
+ yatcyrillic: 0x0463,
+ ycircle: 0x24E8,
+ ycircumflex: 0x0177,
+ ydieresis: 0x00FF,
+ ydotaccent: 0x1E8F,
+ ydotbelow: 0x1EF5,
+ yeharabic: 0x064A,
+ yehbarreearabic: 0x06D2,
+ yehbarreefinalarabic: 0xFBAF,
+ yehfinalarabic: 0xFEF2,
+ yehhamzaabovearabic: 0x0626,
+ yehhamzaabovefinalarabic: 0xFE8A,
+ yehhamzaaboveinitialarabic: 0xFE8B,
+ yehhamzaabovemedialarabic: 0xFE8C,
+ yehinitialarabic: 0xFEF3,
+ yehmedialarabic: 0xFEF4,
+ yehmeeminitialarabic: 0xFCDD,
+ yehmeemisolatedarabic: 0xFC58,
+ yehnoonfinalarabic: 0xFC94,
+ yehthreedotsbelowarabic: 0x06D1,
+ yekorean: 0x3156,
+ yen: 0x00A5,
+ yenmonospace: 0xFFE5,
+ yeokorean: 0x3155,
+ yeorinhieuhkorean: 0x3186,
+ yerahbenyomohebrew: 0x05AA,
+ yerahbenyomolefthebrew: 0x05AA,
+ yericyrillic: 0x044B,
+ yerudieresiscyrillic: 0x04F9,
+ yesieungkorean: 0x3181,
+ yesieungpansioskorean: 0x3183,
+ yesieungsioskorean: 0x3182,
+ yetivhebrew: 0x059A,
+ ygrave: 0x1EF3,
+ yhook: 0x01B4,
+ yhookabove: 0x1EF7,
+ yiarmenian: 0x0575,
+ yicyrillic: 0x0457,
+ yikorean: 0x3162,
+ yinyang: 0x262F,
+ yiwnarmenian: 0x0582,
+ ymonospace: 0xFF59,
+ yod: 0x05D9,
+ yoddagesh: 0xFB39,
+ yoddageshhebrew: 0xFB39,
+ yodhebrew: 0x05D9,
+ yodyodhebrew: 0x05F2,
+ yodyodpatahhebrew: 0xFB1F,
+ yohiragana: 0x3088,
+ yoikorean: 0x3189,
+ yokatakana: 0x30E8,
+ yokatakanahalfwidth: 0xFF96,
+ yokorean: 0x315B,
+ yosmallhiragana: 0x3087,
+ yosmallkatakana: 0x30E7,
+ yosmallkatakanahalfwidth: 0xFF6E,
+ yotgreek: 0x03F3,
+ yoyaekorean: 0x3188,
+ yoyakorean: 0x3187,
+ yoyakthai: 0x0E22,
+ yoyingthai: 0x0E0D,
+ yparen: 0x24B4,
+ ypogegrammeni: 0x037A,
+ ypogegrammenigreekcmb: 0x0345,
+ yr: 0x01A6,
+ yring: 0x1E99,
+ ysuperior: 0x02B8,
+ ytilde: 0x1EF9,
+ yturned: 0x028E,
+ yuhiragana: 0x3086,
+ yuikorean: 0x318C,
+ yukatakana: 0x30E6,
+ yukatakanahalfwidth: 0xFF95,
+ yukorean: 0x3160,
+ yusbigcyrillic: 0x046B,
+ yusbigiotifiedcyrillic: 0x046D,
+ yuslittlecyrillic: 0x0467,
+ yuslittleiotifiedcyrillic: 0x0469,
+ yusmallhiragana: 0x3085,
+ yusmallkatakana: 0x30E5,
+ yusmallkatakanahalfwidth: 0xFF6D,
+ yuyekorean: 0x318B,
+ yuyeokorean: 0x318A,
+ yyabengali: 0x09DF,
+ yyadeva: 0x095F,
+ z: 0x007A,
+ zaarmenian: 0x0566,
+ zacute: 0x017A,
+ zadeva: 0x095B,
+ zagurmukhi: 0x0A5B,
+ zaharabic: 0x0638,
+ zahfinalarabic: 0xFEC6,
+ zahinitialarabic: 0xFEC7,
+ zahiragana: 0x3056,
+ zahmedialarabic: 0xFEC8,
+ zainarabic: 0x0632,
+ zainfinalarabic: 0xFEB0,
+ zakatakana: 0x30B6,
+ zaqefgadolhebrew: 0x0595,
+ zaqefqatanhebrew: 0x0594,
+ zarqahebrew: 0x0598,
+ zayin: 0x05D6,
+ zayindagesh: 0xFB36,
+ zayindageshhebrew: 0xFB36,
+ zayinhebrew: 0x05D6,
+ zbopomofo: 0x3117,
+ zcaron: 0x017E,
+ zcircle: 0x24E9,
+ zcircumflex: 0x1E91,
+ zcurl: 0x0291,
+ zdot: 0x017C,
+ zdotaccent: 0x017C,
+ zdotbelow: 0x1E93,
+ zecyrillic: 0x0437,
+ zedescendercyrillic: 0x0499,
+ zedieresiscyrillic: 0x04DF,
+ zehiragana: 0x305C,
+ zekatakana: 0x30BC,
+ zero: 0x0030,
+ zeroarabic: 0x0660,
+ zerobengali: 0x09E6,
+ zerodeva: 0x0966,
+ zerogujarati: 0x0AE6,
+ zerogurmukhi: 0x0A66,
+ zerohackarabic: 0x0660,
+ zeroinferior: 0x2080,
+ zeromonospace: 0xFF10,
+ zerooldstyle: 0xF730,
+ zeropersian: 0x06F0,
+ zerosuperior: 0x2070,
+ zerothai: 0x0E50,
+ zerowidthjoiner: 0xFEFF,
+ zerowidthnonjoiner: 0x200C,
+ zerowidthspace: 0x200B,
+ zeta: 0x03B6,
+ zhbopomofo: 0x3113,
+ zhearmenian: 0x056A,
+ zhebrevecyrillic: 0x04C2,
+ zhecyrillic: 0x0436,
+ zhedescendercyrillic: 0x0497,
+ zhedieresiscyrillic: 0x04DD,
+ zihiragana: 0x3058,
+ zikatakana: 0x30B8,
+ zinorhebrew: 0x05AE,
+ zlinebelow: 0x1E95,
+ zmonospace: 0xFF5A,
+ zohiragana: 0x305E,
+ zokatakana: 0x30BE,
+ zparen: 0x24B5,
+ zretroflexhook: 0x0290,
+ zstroke: 0x01B6,
+ zuhiragana: 0x305A,
+ zukatakana: 0x30BA,
+ '.notdef': 0x0000
+};
+
+var DingbatsGlyphsUnicode = {
+ space: 0x0020,
+ a1: 0x2701,
+ a2: 0x2702,
+ a202: 0x2703,
+ a3: 0x2704,
+ a4: 0x260E,
+ a5: 0x2706,
+ a119: 0x2707,
+ a118: 0x2708,
+ a117: 0x2709,
+ a11: 0x261B,
+ a12: 0x261E,
+ a13: 0x270C,
+ a14: 0x270D,
+ a15: 0x270E,
+ a16: 0x270F,
+ a105: 0x2710,
+ a17: 0x2711,
+ a18: 0x2712,
+ a19: 0x2713,
+ a20: 0x2714,
+ a21: 0x2715,
+ a22: 0x2716,
+ a23: 0x2717,
+ a24: 0x2718,
+ a25: 0x2719,
+ a26: 0x271A,
+ a27: 0x271B,
+ a28: 0x271C,
+ a6: 0x271D,
+ a7: 0x271E,
+ a8: 0x271F,
+ a9: 0x2720,
+ a10: 0x2721,
+ a29: 0x2722,
+ a30: 0x2723,
+ a31: 0x2724,
+ a32: 0x2725,
+ a33: 0x2726,
+ a34: 0x2727,
+ a35: 0x2605,
+ a36: 0x2729,
+ a37: 0x272A,
+ a38: 0x272B,
+ a39: 0x272C,
+ a40: 0x272D,
+ a41: 0x272E,
+ a42: 0x272F,
+ a43: 0x2730,
+ a44: 0x2731,
+ a45: 0x2732,
+ a46: 0x2733,
+ a47: 0x2734,
+ a48: 0x2735,
+ a49: 0x2736,
+ a50: 0x2737,
+ a51: 0x2738,
+ a52: 0x2739,
+ a53: 0x273A,
+ a54: 0x273B,
+ a55: 0x273C,
+ a56: 0x273D,
+ a57: 0x273E,
+ a58: 0x273F,
+ a59: 0x2740,
+ a60: 0x2741,
+ a61: 0x2742,
+ a62: 0x2743,
+ a63: 0x2744,
+ a64: 0x2745,
+ a65: 0x2746,
+ a66: 0x2747,
+ a67: 0x2748,
+ a68: 0x2749,
+ a69: 0x274A,
+ a70: 0x274B,
+ a71: 0x25CF,
+ a72: 0x274D,
+ a73: 0x25A0,
+ a74: 0x274F,
+ a203: 0x2750,
+ a75: 0x2751,
+ a204: 0x2752,
+ a76: 0x25B2,
+ a77: 0x25BC,
+ a78: 0x25C6,
+ a79: 0x2756,
+ a81: 0x25D7,
+ a82: 0x2758,
+ a83: 0x2759,
+ a84: 0x275A,
+ a97: 0x275B,
+ a98: 0x275C,
+ a99: 0x275D,
+ a100: 0x275E,
+ a101: 0x2761,
+ a102: 0x2762,
+ a103: 0x2763,
+ a104: 0x2764,
+ a106: 0x2765,
+ a107: 0x2766,
+ a108: 0x2767,
+ a112: 0x2663,
+ a111: 0x2666,
+ a110: 0x2665,
+ a109: 0x2660,
+ a120: 0x2460,
+ a121: 0x2461,
+ a122: 0x2462,
+ a123: 0x2463,
+ a124: 0x2464,
+ a125: 0x2465,
+ a126: 0x2466,
+ a127: 0x2467,
+ a128: 0x2468,
+ a129: 0x2469,
+ a130: 0x2776,
+ a131: 0x2777,
+ a132: 0x2778,
+ a133: 0x2779,
+ a134: 0x277A,
+ a135: 0x277B,
+ a136: 0x277C,
+ a137: 0x277D,
+ a138: 0x277E,
+ a139: 0x277F,
+ a140: 0x2780,
+ a141: 0x2781,
+ a142: 0x2782,
+ a143: 0x2783,
+ a144: 0x2784,
+ a145: 0x2785,
+ a146: 0x2786,
+ a147: 0x2787,
+ a148: 0x2788,
+ a149: 0x2789,
+ a150: 0x278A,
+ a151: 0x278B,
+ a152: 0x278C,
+ a153: 0x278D,
+ a154: 0x278E,
+ a155: 0x278F,
+ a156: 0x2790,
+ a157: 0x2791,
+ a158: 0x2792,
+ a159: 0x2793,
+ a160: 0x2794,
+ a161: 0x2192,
+ a163: 0x2194,
+ a164: 0x2195,
+ a196: 0x2798,
+ a165: 0x2799,
+ a192: 0x279A,
+ a166: 0x279B,
+ a167: 0x279C,
+ a168: 0x279D,
+ a169: 0x279E,
+ a170: 0x279F,
+ a171: 0x27A0,
+ a172: 0x27A1,
+ a173: 0x27A2,
+ a162: 0x27A3,
+ a174: 0x27A4,
+ a175: 0x27A5,
+ a176: 0x27A6,
+ a177: 0x27A7,
+ a178: 0x27A8,
+ a179: 0x27A9,
+ a193: 0x27AA,
+ a180: 0x27AB,
+ a199: 0x27AC,
+ a181: 0x27AD,
+ a200: 0x27AE,
+ a182: 0x27AF,
+ a201: 0x27B1,
+ a183: 0x27B2,
+ a184: 0x27B3,
+ a197: 0x27B4,
+ a185: 0x27B5,
+ a194: 0x27B6,
+ a198: 0x27B7,
+ a186: 0x27B8,
+ a195: 0x27B9,
+ a187: 0x27BA,
+ a188: 0x27BB,
+ a189: 0x27BC,
+ a190: 0x27BD,
+ a191: 0x27BE,
+ a89: 0x2768, // 0xF8D7
+ a90: 0x2769, // 0xF8D8
+ a93: 0x276A, // 0xF8D9
+ a94: 0x276B, // 0xF8DA
+ a91: 0x276C, // 0xF8DB
+ a92: 0x276D, // 0xF8DC
+ a205: 0x276E, // 0xF8DD
+ a85: 0x276F, // 0xF8DE
+ a206: 0x2770, // 0xF8DF
+ a86: 0x2771, // 0xF8E0
+ a87: 0x2772, // 0xF8E1
+ a88: 0x2773, // 0xF8E2
+ a95: 0x2774, // 0xF8E3
+ a96: 0x2775, // 0xF8E4
+ '.notdef': 0x0000
+};
+
+
+var PDFImage = (function PDFImageClosure() {
+ /**
+ * Decode the image in the main thread if it supported. Resovles the promise
+ * when the image data is ready.
+ */
+ function handleImageData(handler, xref, res, image) {
+ if (image instanceof JpegStream && image.isNativelyDecodable(xref, res)) {
+ // For natively supported jpegs send them to the main thread for decoding.
+ var dict = image.dict;
+ var colorSpace = dict.get('ColorSpace', 'CS');
+ colorSpace = ColorSpace.parse(colorSpace, xref, res);
+ var numComps = colorSpace.numComps;
+ var decodePromise = handler.sendWithPromise('JpegDecode',
+ [image.getIR(), numComps]);
+ return decodePromise.then(function (message) {
+ var data = message.data;
+ return new Stream(data, 0, data.length, image.dict);
+ });
+ } else {
+ return Promise.resolve(image);
+ }
+ }
+
+ /**
+ * Decode and clamp a value. The formula is different from the spec because we
+ * don't decode to float range [0,1], we decode it in the [0,max] range.
+ */
+ function decodeAndClamp(value, addend, coefficient, max) {
+ value = addend + value * coefficient;
+ // Clamp the value to the range
+ return (value < 0 ? 0 : (value > max ? max : value));
+ }
+
+ function PDFImage(xref, res, image, inline, smask, mask, isMask) {
+ this.image = image;
+ var dict = image.dict;
+ if (dict.has('Filter')) {
+ var filter = dict.get('Filter').name;
+ if (filter === 'JPXDecode') {
+ var jpxImage = new JpxImage();
+ jpxImage.parseImageProperties(image.stream);
+ image.stream.reset();
+ image.bitsPerComponent = jpxImage.bitsPerComponent;
+ image.numComps = jpxImage.componentsCount;
+ } else if (filter === 'JBIG2Decode') {
+ image.bitsPerComponent = 1;
+ image.numComps = 1;
+ }
+ }
+ // TODO cache rendered images?
+
+ this.width = dict.get('Width', 'W');
+ this.height = dict.get('Height', 'H');
+
+ if (this.width < 1 || this.height < 1) {
+ error('Invalid image width: ' + this.width + ' or height: ' +
+ this.height);
+ }
+
+ this.interpolate = dict.get('Interpolate', 'I') || false;
+ this.imageMask = dict.get('ImageMask', 'IM') || false;
+ this.matte = dict.get('Matte') || false;
+
+ var bitsPerComponent = image.bitsPerComponent;
+ if (!bitsPerComponent) {
+ bitsPerComponent = dict.get('BitsPerComponent', 'BPC');
+ if (!bitsPerComponent) {
+ if (this.imageMask) {
+ bitsPerComponent = 1;
+ } else {
+ error('Bits per component missing in image: ' + this.imageMask);
+ }
+ }
+ }
+ this.bpc = bitsPerComponent;
+
+ if (!this.imageMask) {
+ var colorSpace = dict.get('ColorSpace', 'CS');
+ if (!colorSpace) {
+ info('JPX images (which do not require color spaces)');
+ switch (image.numComps) {
+ case 1:
+ colorSpace = Name.get('DeviceGray');
+ break;
+ case 3:
+ colorSpace = Name.get('DeviceRGB');
+ break;
+ case 4:
+ colorSpace = Name.get('DeviceCMYK');
+ break;
+ default:
+ error('JPX images with ' + this.numComps +
+ ' color components not supported.');
+ }
+ }
+ this.colorSpace = ColorSpace.parse(colorSpace, xref, res);
+ this.numComps = this.colorSpace.numComps;
+ }
+
+ this.decode = dict.get('Decode', 'D');
+ this.needsDecode = false;
+ if (this.decode &&
+ ((this.colorSpace && !this.colorSpace.isDefaultDecode(this.decode)) ||
+ (isMask && !ColorSpace.isDefaultDecode(this.decode, 1)))) {
+ this.needsDecode = true;
+ // Do some preprocessing to avoid more math.
+ var max = (1 << bitsPerComponent) - 1;
+ this.decodeCoefficients = [];
+ this.decodeAddends = [];
+ for (var i = 0, j = 0; i < this.decode.length; i += 2, ++j) {
+ var dmin = this.decode[i];
+ var dmax = this.decode[i + 1];
+ this.decodeCoefficients[j] = dmax - dmin;
+ this.decodeAddends[j] = max * dmin;
+ }
+ }
+
+ if (smask) {
+ this.smask = new PDFImage(xref, res, smask, false);
+ } else if (mask) {
+ if (isStream(mask)) {
+ this.mask = new PDFImage(xref, res, mask, false, null, null, true);
+ } else {
+ // Color key mask (just an array).
+ this.mask = mask;
+ }
+ }
+ }
+ /**
+ * Handles processing of image data and returns the Promise that is resolved
+ * with a PDFImage when the image is ready to be used.
+ */
+ PDFImage.buildImage = function PDFImage_buildImage(handler, xref,
+ res, image, inline) {
+ var imagePromise = handleImageData(handler, xref, res, image);
+ var smaskPromise;
+ var maskPromise;
+
+ var smask = image.dict.get('SMask');
+ var mask = image.dict.get('Mask');
+
+ if (smask) {
+ smaskPromise = handleImageData(handler, xref, res, smask);
+ maskPromise = Promise.resolve(null);
+ } else {
+ smaskPromise = Promise.resolve(null);
+ if (mask) {
+ if (isStream(mask)) {
+ maskPromise = handleImageData(handler, xref, res, mask);
+ } else if (isArray(mask)) {
+ maskPromise = Promise.resolve(mask);
+ } else {
+ warn('Unsupported mask format.');
+ maskPromise = Promise.resolve(null);
+ }
+ } else {
+ maskPromise = Promise.resolve(null);
+ }
+ }
+ return Promise.all([imagePromise, smaskPromise, maskPromise]).then(
+ function(results) {
+ var imageData = results[0];
+ var smaskData = results[1];
+ var maskData = results[2];
+ return new PDFImage(xref, res, imageData, inline, smaskData, maskData);
+ });
+ };
+
+ /**
+ * Resize an image using the nearest neighbor algorithm. Currently only
+ * supports one and three component images.
+ * @param {TypedArray} pixels The original image with one component.
+ * @param {Number} bpc Number of bits per component.
+ * @param {Number} components Number of color components, 1 or 3 is supported.
+ * @param {Number} w1 Original width.
+ * @param {Number} h1 Original height.
+ * @param {Number} w2 New width.
+ * @param {Number} h2 New height.
+ * @param {TypedArray} dest (Optional) The destination buffer.
+ * @param {Number} alpha01 (Optional) Size reserved for the alpha channel.
+ * @return {TypedArray} Resized image data.
+ */
+ PDFImage.resize = function PDFImage_resize(pixels, bpc, components,
+ w1, h1, w2, h2, dest, alpha01) {
+
+ if (components !== 1 && components !== 3) {
+ error('Unsupported component count for resizing.');
+ }
+
+ var length = w2 * h2 * components;
+ var temp = dest ? dest : (bpc <= 8 ? new Uint8Array(length) :
+ (bpc <= 16 ? new Uint16Array(length) : new Uint32Array(length)));
+ var xRatio = w1 / w2;
+ var yRatio = h1 / h2;
+ var i, j, py, newIndex = 0, oldIndex;
+ var xScaled = new Uint16Array(w2);
+ var w1Scanline = w1 * components;
+ if (alpha01 !== 1) {
+ alpha01 = 0;
+ }
+
+ for (j = 0; j < w2; j++) {
+ xScaled[j] = Math.floor(j * xRatio) * components;
+ }
+
+ if (components === 1) {
+ for (i = 0; i < h2; i++) {
+ py = Math.floor(i * yRatio) * w1Scanline;
+ for (j = 0; j < w2; j++) {
+ oldIndex = py + xScaled[j];
+ temp[newIndex++] = pixels[oldIndex];
+ }
+ }
+ } else if (components === 3) {
+ for (i = 0; i < h2; i++) {
+ py = Math.floor(i * yRatio) * w1Scanline;
+ for (j = 0; j < w2; j++) {
+ oldIndex = py + xScaled[j];
+ temp[newIndex++] = pixels[oldIndex++];
+ temp[newIndex++] = pixels[oldIndex++];
+ temp[newIndex++] = pixels[oldIndex++];
+ newIndex += alpha01;
+ }
+ }
+ }
+ return temp;
+ };
+
+ PDFImage.createMask =
+ function PDFImage_createMask(imgArray, width, height,
+ imageIsFromDecodeStream, inverseDecode) {
+
+ // |imgArray| might not contain full data for every pixel of the mask, so
+ // we need to distinguish between |computedLength| and |actualLength|.
+ // In particular, if inverseDecode is true, then the array we return must
+ // have a length of |computedLength|.
+
+ var computedLength = ((width + 7) >> 3) * height;
+ var actualLength = imgArray.byteLength;
+ var haveFullData = computedLength === actualLength;
+ var data, i;
+
+ if (imageIsFromDecodeStream && (!inverseDecode || haveFullData)) {
+ // imgArray came from a DecodeStream and its data is in an appropriate
+ // form, so we can just transfer it.
+ data = imgArray;
+ } else if (!inverseDecode) {
+ data = new Uint8Array(actualLength);
+ data.set(imgArray);
+ } else {
+ data = new Uint8Array(computedLength);
+ data.set(imgArray);
+ for (i = actualLength; i < computedLength; i++) {
+ data[i] = 0xff;
+ }
+ }
+
+ // If necessary, invert the original mask data (but not any extra we might
+ // have added above). It's safe to modify the array -- whether it's the
+ // original or a copy, we're about to transfer it anyway, so nothing else
+ // in this thread can be relying on its contents.
+ if (inverseDecode) {
+ for (i = 0; i < actualLength; i++) {
+ data[i] = ~data[i];
+ }
+ }
+
+ return {data: data, width: width, height: height};
+ };
+
+ PDFImage.prototype = {
+ get drawWidth() {
+ return Math.max(this.width,
+ this.smask && this.smask.width || 0,
+ this.mask && this.mask.width || 0);
+ },
+
+ get drawHeight() {
+ return Math.max(this.height,
+ this.smask && this.smask.height || 0,
+ this.mask && this.mask.height || 0);
+ },
+
+ decodeBuffer: function PDFImage_decodeBuffer(buffer) {
+ var bpc = this.bpc;
+ var numComps = this.numComps;
+
+ var decodeAddends = this.decodeAddends;
+ var decodeCoefficients = this.decodeCoefficients;
+ var max = (1 << bpc) - 1;
+ var i, ii;
+
+ if (bpc === 1) {
+ // If the buffer needed decode that means it just needs to be inverted.
+ for (i = 0, ii = buffer.length; i < ii; i++) {
+ buffer[i] = +!(buffer[i]);
+ }
+ return;
+ }
+ var index = 0;
+ for (i = 0, ii = this.width * this.height; i < ii; i++) {
+ for (var j = 0; j < numComps; j++) {
+ buffer[index] = decodeAndClamp(buffer[index], decodeAddends[j],
+ decodeCoefficients[j], max);
+ index++;
+ }
+ }
+ },
+
+ getComponents: function PDFImage_getComponents(buffer) {
+ var bpc = this.bpc;
+
+ // This image doesn't require any extra work.
+ if (bpc === 8) {
+ return buffer;
+ }
+
+ var width = this.width;
+ var height = this.height;
+ var numComps = this.numComps;
+
+ var length = width * height * numComps;
+ var bufferPos = 0;
+ var output = (bpc <= 8 ? new Uint8Array(length) :
+ (bpc <= 16 ? new Uint16Array(length) : new Uint32Array(length)));
+ var rowComps = width * numComps;
+
+ var max = (1 << bpc) - 1;
+ var i = 0, ii, buf;
+
+ if (bpc === 1) {
+ // Optimization for reading 1 bpc images.
+ var mask, loop1End, loop2End;
+ for (var j = 0; j < height; j++) {
+ loop1End = i + (rowComps & ~7);
+ loop2End = i + rowComps;
+
+ // unroll loop for all full bytes
+ while (i < loop1End) {
+ buf = buffer[bufferPos++];
+ output[i] = (buf >> 7) & 1;
+ output[i + 1] = (buf >> 6) & 1;
+ output[i + 2] = (buf >> 5) & 1;
+ output[i + 3] = (buf >> 4) & 1;
+ output[i + 4] = (buf >> 3) & 1;
+ output[i + 5] = (buf >> 2) & 1;
+ output[i + 6] = (buf >> 1) & 1;
+ output[i + 7] = buf & 1;
+ i += 8;
+ }
+
+ // handle remaing bits
+ if (i < loop2End) {
+ buf = buffer[bufferPos++];
+ mask = 128;
+ while (i < loop2End) {
+ output[i++] = +!!(buf & mask);
+ mask >>= 1;
+ }
+ }
+ }
+ } else {
+ // The general case that handles all other bpc values.
+ var bits = 0;
+ buf = 0;
+ for (i = 0, ii = length; i < ii; ++i) {
+ if (i % rowComps === 0) {
+ buf = 0;
+ bits = 0;
+ }
+
+ while (bits < bpc) {
+ buf = (buf << 8) | buffer[bufferPos++];
+ bits += 8;
+ }
+
+ var remainingBits = bits - bpc;
+ var value = buf >> remainingBits;
+ output[i] = (value < 0 ? 0 : (value > max ? max : value));
+ buf = buf & ((1 << remainingBits) - 1);
+ bits = remainingBits;
+ }
+ }
+ return output;
+ },
+
+ fillOpacity: function PDFImage_fillOpacity(rgbaBuf, width, height,
+ actualHeight, image) {
+ var smask = this.smask;
+ var mask = this.mask;
+ var alphaBuf, sw, sh, i, ii, j;
+
+ if (smask) {
+ sw = smask.width;
+ sh = smask.height;
+ alphaBuf = new Uint8Array(sw * sh);
+ smask.fillGrayBuffer(alphaBuf);
+ if (sw !== width || sh !== height) {
+ alphaBuf = PDFImage.resize(alphaBuf, smask.bpc, 1, sw, sh, width,
+ height);
+ }
+ } else if (mask) {
+ if (mask instanceof PDFImage) {
+ sw = mask.width;
+ sh = mask.height;
+ alphaBuf = new Uint8Array(sw * sh);
+ mask.numComps = 1;
+ mask.fillGrayBuffer(alphaBuf);
+
+ // Need to invert values in rgbaBuf
+ for (i = 0, ii = sw * sh; i < ii; ++i) {
+ alphaBuf[i] = 255 - alphaBuf[i];
+ }
+
+ if (sw !== width || sh !== height) {
+ alphaBuf = PDFImage.resize(alphaBuf, mask.bpc, 1, sw, sh, width,
+ height);
+ }
+ } else if (isArray(mask)) {
+ // Color key mask: if any of the compontents are outside the range
+ // then they should be painted.
+ alphaBuf = new Uint8Array(width * height);
+ var numComps = this.numComps;
+ for (i = 0, ii = width * height; i < ii; ++i) {
+ var opacity = 0;
+ var imageOffset = i * numComps;
+ for (j = 0; j < numComps; ++j) {
+ var color = image[imageOffset + j];
+ var maskOffset = j * 2;
+ if (color < mask[maskOffset] || color > mask[maskOffset + 1]) {
+ opacity = 255;
+ break;
+ }
+ }
+ alphaBuf[i] = opacity;
+ }
+ } else {
+ error('Unknown mask format.');
+ }
+ }
+
+ if (alphaBuf) {
+ for (i = 0, j = 3, ii = width * actualHeight; i < ii; ++i, j += 4) {
+ rgbaBuf[j] = alphaBuf[i];
+ }
+ } else {
+ // No mask.
+ for (i = 0, j = 3, ii = width * actualHeight; i < ii; ++i, j += 4) {
+ rgbaBuf[j] = 255;
+ }
+ }
+ },
+
+ undoPreblend: function PDFImage_undoPreblend(buffer, width, height) {
+ var matte = this.smask && this.smask.matte;
+ if (!matte) {
+ return;
+ }
+ var matteRgb = this.colorSpace.getRgb(matte, 0);
+ var matteR = matteRgb[0];
+ var matteG = matteRgb[1];
+ var matteB = matteRgb[2];
+ var length = width * height * 4;
+ var r, g, b;
+ for (var i = 0; i < length; i += 4) {
+ var alpha = buffer[i + 3];
+ if (alpha === 0) {
+ // according formula we have to get Infinity in all components
+ // making it white (typical paper color) should be okay
+ buffer[i] = 255;
+ buffer[i + 1] = 255;
+ buffer[i + 2] = 255;
+ continue;
+ }
+ var k = 255 / alpha;
+ r = (buffer[i] - matteR) * k + matteR;
+ g = (buffer[i + 1] - matteG) * k + matteG;
+ b = (buffer[i + 2] - matteB) * k + matteB;
+ buffer[i] = r <= 0 ? 0 : r >= 255 ? 255 : r | 0;
+ buffer[i + 1] = g <= 0 ? 0 : g >= 255 ? 255 : g | 0;
+ buffer[i + 2] = b <= 0 ? 0 : b >= 255 ? 255 : b | 0;
+ }
+ },
+
+ createImageData: function PDFImage_createImageData(forceRGBA) {
+ var drawWidth = this.drawWidth;
+ var drawHeight = this.drawHeight;
+ var imgData = { // other fields are filled in below
+ width: drawWidth,
+ height: drawHeight
+ };
+
+ var numComps = this.numComps;
+ var originalWidth = this.width;
+ var originalHeight = this.height;
+ var bpc = this.bpc;
+
+ // Rows start at byte boundary.
+ var rowBytes = (originalWidth * numComps * bpc + 7) >> 3;
+ var imgArray;
+
+ if (!forceRGBA) {
+ // If it is a 1-bit-per-pixel grayscale (i.e. black-and-white) image
+ // without any complications, we pass a same-sized copy to the main
+ // thread rather than expanding by 32x to RGBA form. This saves *lots*
+ // of memory for many scanned documents. It's also much faster.
+ //
+ // Similarly, if it is a 24-bit-per pixel RGB image without any
+ // complications, we avoid expanding by 1.333x to RGBA form.
+ var kind;
+ if (this.colorSpace.name === 'DeviceGray' && bpc === 1) {
+ kind = ImageKind.GRAYSCALE_1BPP;
+ } else if (this.colorSpace.name === 'DeviceRGB' && bpc === 8 &&
+ !this.needsDecode) {
+ kind = ImageKind.RGB_24BPP;
+ }
+ if (kind && !this.smask && !this.mask &&
+ drawWidth === originalWidth && drawHeight === originalHeight) {
+ imgData.kind = kind;
+
+ imgArray = this.getImageBytes(originalHeight * rowBytes);
+ // If imgArray came from a DecodeStream, we're safe to transfer it
+ // (and thus neuter it) because it will constitute the entire
+ // DecodeStream's data. But if it came from a Stream, we need to
+ // copy it because it'll only be a portion of the Stream's data, and
+ // the rest will be read later on.
+ if (this.image instanceof DecodeStream) {
+ imgData.data = imgArray;
+ } else {
+ var newArray = new Uint8Array(imgArray.length);
+ newArray.set(imgArray);
+ imgData.data = newArray;
+ }
+ if (this.needsDecode) {
+ // Invert the buffer (which must be grayscale if we reached here).
+ assert(kind === ImageKind.GRAYSCALE_1BPP);
+ var buffer = imgData.data;
+ for (var i = 0, ii = buffer.length; i < ii; i++) {
+ buffer[i] ^= 0xff;
+ }
+ }
+ return imgData;
+ }
+ if (this.image instanceof JpegStream && !this.smask && !this.mask) {
+ imgData.kind = ImageKind.RGB_24BPP;
+ imgData.data = this.getImageBytes(originalHeight * rowBytes,
+ drawWidth, drawHeight, true);
+ return imgData;
+ }
+ }
+
+ imgArray = this.getImageBytes(originalHeight * rowBytes);
+ // imgArray can be incomplete (e.g. after CCITT fax encoding).
+ var actualHeight = 0 | (imgArray.length / rowBytes *
+ drawHeight / originalHeight);
+
+ var comps = this.getComponents(imgArray);
+
+ // If opacity data is present, use RGBA_32BPP form. Otherwise, use the
+ // more compact RGB_24BPP form if allowable.
+ var alpha01, maybeUndoPreblend;
+ if (!forceRGBA && !this.smask && !this.mask) {
+ imgData.kind = ImageKind.RGB_24BPP;
+ imgData.data = new Uint8Array(drawWidth * drawHeight * 3);
+ alpha01 = 0;
+ maybeUndoPreblend = false;
+ } else {
+ imgData.kind = ImageKind.RGBA_32BPP;
+ imgData.data = new Uint8Array(drawWidth * drawHeight * 4);
+ alpha01 = 1;
+ maybeUndoPreblend = true;
+
+ // Color key masking (opacity) must be performed before decoding.
+ this.fillOpacity(imgData.data, drawWidth, drawHeight, actualHeight,
+ comps);
+ }
+
+ if (this.needsDecode) {
+ this.decodeBuffer(comps);
+ }
+ this.colorSpace.fillRgb(imgData.data, originalWidth, originalHeight,
+ drawWidth, drawHeight, actualHeight, bpc, comps,
+ alpha01);
+ if (maybeUndoPreblend) {
+ this.undoPreblend(imgData.data, drawWidth, actualHeight);
+ }
+
+ return imgData;
+ },
+
+ fillGrayBuffer: function PDFImage_fillGrayBuffer(buffer) {
+ var numComps = this.numComps;
+ if (numComps !== 1) {
+ error('Reading gray scale from a color image: ' + numComps);
+ }
+
+ var width = this.width;
+ var height = this.height;
+ var bpc = this.bpc;
+
+ // rows start at byte boundary
+ var rowBytes = (width * numComps * bpc + 7) >> 3;
+ var imgArray = this.getImageBytes(height * rowBytes);
+
+ var comps = this.getComponents(imgArray);
+ var i, length;
+
+ if (bpc === 1) {
+ // inline decoding (= inversion) for 1 bpc images
+ length = width * height;
+ if (this.needsDecode) {
+ // invert and scale to {0, 255}
+ for (i = 0; i < length; ++i) {
+ buffer[i] = (comps[i] - 1) & 255;
+ }
+ } else {
+ // scale to {0, 255}
+ for (i = 0; i < length; ++i) {
+ buffer[i] = (-comps[i]) & 255;
+ }
+ }
+ return;
+ }
+
+ if (this.needsDecode) {
+ this.decodeBuffer(comps);
+ }
+ length = width * height;
+ // we aren't using a colorspace so we need to scale the value
+ var scale = 255 / ((1 << bpc) - 1);
+ for (i = 0; i < length; ++i) {
+ buffer[i] = (scale * comps[i]) | 0;
+ }
+ },
+
+ getImageBytes: function PDFImage_getImageBytes(length,
+ drawWidth, drawHeight,
+ forceRGB) {
+ this.image.reset();
+ this.image.drawWidth = drawWidth || this.width;
+ this.image.drawHeight = drawHeight || this.height;
+ this.image.forceRGB = !!forceRGB;
+ return this.image.getBytes(length);
+ }
+ };
+ return PDFImage;
+})();
+
+
+// The Metrics object contains glyph widths (in glyph space units).
+// As per PDF spec, for most fonts (Type 3 being an exception) a glyph
+// space unit corresponds to 1/1000th of text space unit.
+var Metrics = {
+ 'Courier': 600,
+ 'Courier-Bold': 600,
+ 'Courier-BoldOblique': 600,
+ 'Courier-Oblique': 600,
+ 'Helvetica' : {
+ 'space': 278,
+ 'exclam': 278,
+ 'quotedbl': 355,
+ 'numbersign': 556,
+ 'dollar': 556,
+ 'percent': 889,
+ 'ampersand': 667,
+ 'quoteright': 222,
+ 'parenleft': 333,
+ 'parenright': 333,
+ 'asterisk': 389,
+ 'plus': 584,
+ 'comma': 278,
+ 'hyphen': 333,
+ 'period': 278,
+ 'slash': 278,
+ 'zero': 556,
+ 'one': 556,
+ 'two': 556,
+ 'three': 556,
+ 'four': 556,
+ 'five': 556,
+ 'six': 556,
+ 'seven': 556,
+ 'eight': 556,
+ 'nine': 556,
+ 'colon': 278,
+ 'semicolon': 278,
+ 'less': 584,
+ 'equal': 584,
+ 'greater': 584,
+ 'question': 556,
+ 'at': 1015,
+ 'A': 667,
+ 'B': 667,
+ 'C': 722,
+ 'D': 722,
+ 'E': 667,
+ 'F': 611,
+ 'G': 778,
+ 'H': 722,
+ 'I': 278,
+ 'J': 500,
+ 'K': 667,
+ 'L': 556,
+ 'M': 833,
+ 'N': 722,
+ 'O': 778,
+ 'P': 667,
+ 'Q': 778,
+ 'R': 722,
+ 'S': 667,
+ 'T': 611,
+ 'U': 722,
+ 'V': 667,
+ 'W': 944,
+ 'X': 667,
+ 'Y': 667,
+ 'Z': 611,
+ 'bracketleft': 278,
+ 'backslash': 278,
+ 'bracketright': 278,
+ 'asciicircum': 469,
+ 'underscore': 556,
+ 'quoteleft': 222,
+ 'a': 556,
+ 'b': 556,
+ 'c': 500,
+ 'd': 556,
+ 'e': 556,
+ 'f': 278,
+ 'g': 556,
+ 'h': 556,
+ 'i': 222,
+ 'j': 222,
+ 'k': 500,
+ 'l': 222,
+ 'm': 833,
+ 'n': 556,
+ 'o': 556,
+ 'p': 556,
+ 'q': 556,
+ 'r': 333,
+ 's': 500,
+ 't': 278,
+ 'u': 556,
+ 'v': 500,
+ 'w': 722,
+ 'x': 500,
+ 'y': 500,
+ 'z': 500,
+ 'braceleft': 334,
+ 'bar': 260,
+ 'braceright': 334,
+ 'asciitilde': 584,
+ 'exclamdown': 333,
+ 'cent': 556,
+ 'sterling': 556,
+ 'fraction': 167,
+ 'yen': 556,
+ 'florin': 556,
+ 'section': 556,
+ 'currency': 556,
+ 'quotesingle': 191,
+ 'quotedblleft': 333,
+ 'guillemotleft': 556,
+ 'guilsinglleft': 333,
+ 'guilsinglright': 333,
+ 'fi': 500,
+ 'fl': 500,
+ 'endash': 556,
+ 'dagger': 556,
+ 'daggerdbl': 556,
+ 'periodcentered': 278,
+ 'paragraph': 537,
+ 'bullet': 350,
+ 'quotesinglbase': 222,
+ 'quotedblbase': 333,
+ 'quotedblright': 333,
+ 'guillemotright': 556,
+ 'ellipsis': 1000,
+ 'perthousand': 1000,
+ 'questiondown': 611,
+ 'grave': 333,
+ 'acute': 333,
+ 'circumflex': 333,
+ 'tilde': 333,
+ 'macron': 333,
+ 'breve': 333,
+ 'dotaccent': 333,
+ 'dieresis': 333,
+ 'ring': 333,
+ 'cedilla': 333,
+ 'hungarumlaut': 333,
+ 'ogonek': 333,
+ 'caron': 333,
+ 'emdash': 1000,
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+ 'braceleft': 334,
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+ 'asciitilde': 584,
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+ 'sterling': 556,
+ 'fraction': 167,
+ 'yen': 556,
+ 'florin': 556,
+ 'section': 556,
+ 'currency': 556,
+ 'quotesingle': 191,
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+ 'daggerdbl': 556,
+ 'periodcentered': 278,
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+ 'guillemotright': 556,
+ 'ellipsis': 1000,
+ 'perthousand': 1000,
+ 'questiondown': 611,
+ 'grave': 333,
+ 'acute': 333,
+ 'circumflex': 333,
+ 'tilde': 333,
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+ 'hungarumlaut': 333,
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+ 'germandbls': 611,
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+ 'uhungarumlaut': 556,
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+ 'copyright': 737,
+ 'Emacron': 667,
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+ 'Ncommaaccent': 722,
+ 'lacute': 222,
+ 'agrave': 556,
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+ 'onesuperior': 333,
+ 'imacron': 278,
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+ 'Symbol': {
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+ 'exclam': 333,
+ 'universal': 713,
+ 'numbersign': 500,
+ 'existential': 549,
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+ 'nine': 500,
+ 'colon': 278,
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+ 'less': 549,
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+ 'degree': 400,
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+ 'lozenge': 494,
+ 'angleleft': 329,
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+ 'copyrightsans': 790,
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+ 'quotesingle': 180,
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+ 'copyright': 760,
+ 'Emacron': 611,
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+ 'j': 333,
+ 'k': 556,
+ 'l': 278,
+ 'm': 833,
+ 'n': 556,
+ 'o': 500,
+ 'p': 556,
+ 'q': 556,
+ 'r': 444,
+ 's': 389,
+ 't': 333,
+ 'u': 556,
+ 'v': 500,
+ 'w': 722,
+ 'x': 500,
+ 'y': 500,
+ 'z': 444,
+ 'braceleft': 394,
+ 'bar': 220,
+ 'braceright': 394,
+ 'asciitilde': 520,
+ 'exclamdown': 333,
+ 'cent': 500,
+ 'sterling': 500,
+ 'fraction': 167,
+ 'yen': 500,
+ 'florin': 500,
+ 'section': 500,
+ 'currency': 500,
+ 'quotesingle': 278,
+ 'quotedblleft': 500,
+ 'guillemotleft': 500,
+ 'guilsinglleft': 333,
+ 'guilsinglright': 333,
+ 'fi': 556,
+ 'fl': 556,
+ 'endash': 500,
+ 'dagger': 500,
+ 'daggerdbl': 500,
+ 'periodcentered': 250,
+ 'paragraph': 540,
+ 'bullet': 350,
+ 'quotesinglbase': 333,
+ 'quotedblbase': 500,
+ 'quotedblright': 500,
+ 'guillemotright': 500,
+ 'ellipsis': 1000,
+ 'perthousand': 1000,
+ 'questiondown': 500,
+ 'grave': 333,
+ 'acute': 333,
+ 'circumflex': 333,
+ 'tilde': 333,
+ 'macron': 333,
+ 'breve': 333,
+ 'dotaccent': 333,
+ 'dieresis': 333,
+ 'ring': 333,
+ 'cedilla': 333,
+ 'hungarumlaut': 333,
+ 'ogonek': 333,
+ 'caron': 333,
+ 'emdash': 1000,
+ 'AE': 1000,
+ 'ordfeminine': 300,
+ 'Lslash': 667,
+ 'Oslash': 778,
+ 'OE': 1000,
+ 'ordmasculine': 330,
+ 'ae': 722,
+ 'dotlessi': 278,
+ 'lslash': 278,
+ 'oslash': 500,
+ 'oe': 722,
+ 'germandbls': 556,
+ 'Idieresis': 389,
+ 'eacute': 444,
+ 'abreve': 500,
+ 'uhungarumlaut': 556,
+ 'ecaron': 444,
+ 'Ydieresis': 722,
+ 'divide': 570,
+ 'Yacute': 722,
+ 'Acircumflex': 722,
+ 'aacute': 500,
+ 'Ucircumflex': 722,
+ 'yacute': 500,
+ 'scommaaccent': 389,
+ 'ecircumflex': 444,
+ 'Uring': 722,
+ 'Udieresis': 722,
+ 'aogonek': 500,
+ 'Uacute': 722,
+ 'uogonek': 556,
+ 'Edieresis': 667,
+ 'Dcroat': 722,
+ 'commaaccent': 250,
+ 'copyright': 747,
+ 'Emacron': 667,
+ 'ccaron': 444,
+ 'aring': 500,
+ 'Ncommaaccent': 722,
+ 'lacute': 278,
+ 'agrave': 500,
+ 'Tcommaaccent': 667,
+ 'Cacute': 722,
+ 'atilde': 500,
+ 'Edotaccent': 667,
+ 'scaron': 389,
+ 'scedilla': 389,
+ 'iacute': 278,
+ 'lozenge': 494,
+ 'Rcaron': 722,
+ 'Gcommaaccent': 778,
+ 'ucircumflex': 556,
+ 'acircumflex': 500,
+ 'Amacron': 722,
+ 'rcaron': 444,
+ 'ccedilla': 444,
+ 'Zdotaccent': 667,
+ 'Thorn': 611,
+ 'Omacron': 778,
+ 'Racute': 722,
+ 'Sacute': 556,
+ 'dcaron': 672,
+ 'Umacron': 722,
+ 'uring': 556,
+ 'threesuperior': 300,
+ 'Ograve': 778,
+ 'Agrave': 722,
+ 'Abreve': 722,
+ 'multiply': 570,
+ 'uacute': 556,
+ 'Tcaron': 667,
+ 'partialdiff': 494,
+ 'ydieresis': 500,
+ 'Nacute': 722,
+ 'icircumflex': 278,
+ 'Ecircumflex': 667,
+ 'adieresis': 500,
+ 'edieresis': 444,
+ 'cacute': 444,
+ 'nacute': 556,
+ 'umacron': 556,
+ 'Ncaron': 722,
+ 'Iacute': 389,
+ 'plusminus': 570,
+ 'brokenbar': 220,
+ 'registered': 747,
+ 'Gbreve': 778,
+ 'Idotaccent': 389,
+ 'summation': 600,
+ 'Egrave': 667,
+ 'racute': 444,
+ 'omacron': 500,
+ 'Zacute': 667,
+ 'Zcaron': 667,
+ 'greaterequal': 549,
+ 'Eth': 722,
+ 'Ccedilla': 722,
+ 'lcommaaccent': 278,
+ 'tcaron': 416,
+ 'eogonek': 444,
+ 'Uogonek': 722,
+ 'Aacute': 722,
+ 'Adieresis': 722,
+ 'egrave': 444,
+ 'zacute': 444,
+ 'iogonek': 278,
+ 'Oacute': 778,
+ 'oacute': 500,
+ 'amacron': 500,
+ 'sacute': 389,
+ 'idieresis': 278,
+ 'Ocircumflex': 778,
+ 'Ugrave': 722,
+ 'Delta': 612,
+ 'thorn': 556,
+ 'twosuperior': 300,
+ 'Odieresis': 778,
+ 'mu': 556,
+ 'igrave': 278,
+ 'ohungarumlaut': 500,
+ 'Eogonek': 667,
+ 'dcroat': 556,
+ 'threequarters': 750,
+ 'Scedilla': 556,
+ 'lcaron': 394,
+ 'Kcommaaccent': 778,
+ 'Lacute': 667,
+ 'trademark': 1000,
+ 'edotaccent': 444,
+ 'Igrave': 389,
+ 'Imacron': 389,
+ 'Lcaron': 667,
+ 'onehalf': 750,
+ 'lessequal': 549,
+ 'ocircumflex': 500,
+ 'ntilde': 556,
+ 'Uhungarumlaut': 722,
+ 'Eacute': 667,
+ 'emacron': 444,
+ 'gbreve': 500,
+ 'onequarter': 750,
+ 'Scaron': 556,
+ 'Scommaaccent': 556,
+ 'Ohungarumlaut': 778,
+ 'degree': 400,
+ 'ograve': 500,
+ 'Ccaron': 722,
+ 'ugrave': 556,
+ 'radical': 549,
+ 'Dcaron': 722,
+ 'rcommaaccent': 444,
+ 'Ntilde': 722,
+ 'otilde': 500,
+ 'Rcommaaccent': 722,
+ 'Lcommaaccent': 667,
+ 'Atilde': 722,
+ 'Aogonek': 722,
+ 'Aring': 722,
+ 'Otilde': 778,
+ 'zdotaccent': 444,
+ 'Ecaron': 667,
+ 'Iogonek': 389,
+ 'kcommaaccent': 556,
+ 'minus': 570,
+ 'Icircumflex': 389,
+ 'ncaron': 556,
+ 'tcommaaccent': 333,
+ 'logicalnot': 570,
+ 'odieresis': 500,
+ 'udieresis': 556,
+ 'notequal': 549,
+ 'gcommaaccent': 500,
+ 'eth': 500,
+ 'zcaron': 444,
+ 'ncommaaccent': 556,
+ 'onesuperior': 300,
+ 'imacron': 278,
+ 'Euro': 500
+ },
+ 'Times-BoldItalic': {
+ 'space': 250,
+ 'exclam': 389,
+ 'quotedbl': 555,
+ 'numbersign': 500,
+ 'dollar': 500,
+ 'percent': 833,
+ 'ampersand': 778,
+ 'quoteright': 333,
+ 'parenleft': 333,
+ 'parenright': 333,
+ 'asterisk': 500,
+ 'plus': 570,
+ 'comma': 250,
+ 'hyphen': 333,
+ 'period': 250,
+ 'slash': 278,
+ 'zero': 500,
+ 'one': 500,
+ 'two': 500,
+ 'three': 500,
+ 'four': 500,
+ 'five': 500,
+ 'six': 500,
+ 'seven': 500,
+ 'eight': 500,
+ 'nine': 500,
+ 'colon': 333,
+ 'semicolon': 333,
+ 'less': 570,
+ 'equal': 570,
+ 'greater': 570,
+ 'question': 500,
+ 'at': 832,
+ 'A': 667,
+ 'B': 667,
+ 'C': 667,
+ 'D': 722,
+ 'E': 667,
+ 'F': 667,
+ 'G': 722,
+ 'H': 778,
+ 'I': 389,
+ 'J': 500,
+ 'K': 667,
+ 'L': 611,
+ 'M': 889,
+ 'N': 722,
+ 'O': 722,
+ 'P': 611,
+ 'Q': 722,
+ 'R': 667,
+ 'S': 556,
+ 'T': 611,
+ 'U': 722,
+ 'V': 667,
+ 'W': 889,
+ 'X': 667,
+ 'Y': 611,
+ 'Z': 611,
+ 'bracketleft': 333,
+ 'backslash': 278,
+ 'bracketright': 333,
+ 'asciicircum': 570,
+ 'underscore': 500,
+ 'quoteleft': 333,
+ 'a': 500,
+ 'b': 500,
+ 'c': 444,
+ 'd': 500,
+ 'e': 444,
+ 'f': 333,
+ 'g': 500,
+ 'h': 556,
+ 'i': 278,
+ 'j': 278,
+ 'k': 500,
+ 'l': 278,
+ 'm': 778,
+ 'n': 556,
+ 'o': 500,
+ 'p': 500,
+ 'q': 500,
+ 'r': 389,
+ 's': 389,
+ 't': 278,
+ 'u': 556,
+ 'v': 444,
+ 'w': 667,
+ 'x': 500,
+ 'y': 444,
+ 'z': 389,
+ 'braceleft': 348,
+ 'bar': 220,
+ 'braceright': 348,
+ 'asciitilde': 570,
+ 'exclamdown': 389,
+ 'cent': 500,
+ 'sterling': 500,
+ 'fraction': 167,
+ 'yen': 500,
+ 'florin': 500,
+ 'section': 500,
+ 'currency': 500,
+ 'quotesingle': 278,
+ 'quotedblleft': 500,
+ 'guillemotleft': 500,
+ 'guilsinglleft': 333,
+ 'guilsinglright': 333,
+ 'fi': 556,
+ 'fl': 556,
+ 'endash': 500,
+ 'dagger': 500,
+ 'daggerdbl': 500,
+ 'periodcentered': 250,
+ 'paragraph': 500,
+ 'bullet': 350,
+ 'quotesinglbase': 333,
+ 'quotedblbase': 500,
+ 'quotedblright': 500,
+ 'guillemotright': 500,
+ 'ellipsis': 1000,
+ 'perthousand': 1000,
+ 'questiondown': 500,
+ 'grave': 333,
+ 'acute': 333,
+ 'circumflex': 333,
+ 'tilde': 333,
+ 'macron': 333,
+ 'breve': 333,
+ 'dotaccent': 333,
+ 'dieresis': 333,
+ 'ring': 333,
+ 'cedilla': 333,
+ 'hungarumlaut': 333,
+ 'ogonek': 333,
+ 'caron': 333,
+ 'emdash': 1000,
+ 'AE': 944,
+ 'ordfeminine': 266,
+ 'Lslash': 611,
+ 'Oslash': 722,
+ 'OE': 944,
+ 'ordmasculine': 300,
+ 'ae': 722,
+ 'dotlessi': 278,
+ 'lslash': 278,
+ 'oslash': 500,
+ 'oe': 722,
+ 'germandbls': 500,
+ 'Idieresis': 389,
+ 'eacute': 444,
+ 'abreve': 500,
+ 'uhungarumlaut': 556,
+ 'ecaron': 444,
+ 'Ydieresis': 611,
+ 'divide': 570,
+ 'Yacute': 611,
+ 'Acircumflex': 667,
+ 'aacute': 500,
+ 'Ucircumflex': 722,
+ 'yacute': 444,
+ 'scommaaccent': 389,
+ 'ecircumflex': 444,
+ 'Uring': 722,
+ 'Udieresis': 722,
+ 'aogonek': 500,
+ 'Uacute': 722,
+ 'uogonek': 556,
+ 'Edieresis': 667,
+ 'Dcroat': 722,
+ 'commaaccent': 250,
+ 'copyright': 747,
+ 'Emacron': 667,
+ 'ccaron': 444,
+ 'aring': 500,
+ 'Ncommaaccent': 722,
+ 'lacute': 278,
+ 'agrave': 500,
+ 'Tcommaaccent': 611,
+ 'Cacute': 667,
+ 'atilde': 500,
+ 'Edotaccent': 667,
+ 'scaron': 389,
+ 'scedilla': 389,
+ 'iacute': 278,
+ 'lozenge': 494,
+ 'Rcaron': 667,
+ 'Gcommaaccent': 722,
+ 'ucircumflex': 556,
+ 'acircumflex': 500,
+ 'Amacron': 667,
+ 'rcaron': 389,
+ 'ccedilla': 444,
+ 'Zdotaccent': 611,
+ 'Thorn': 611,
+ 'Omacron': 722,
+ 'Racute': 667,
+ 'Sacute': 556,
+ 'dcaron': 608,
+ 'Umacron': 722,
+ 'uring': 556,
+ 'threesuperior': 300,
+ 'Ograve': 722,
+ 'Agrave': 667,
+ 'Abreve': 667,
+ 'multiply': 570,
+ 'uacute': 556,
+ 'Tcaron': 611,
+ 'partialdiff': 494,
+ 'ydieresis': 444,
+ 'Nacute': 722,
+ 'icircumflex': 278,
+ 'Ecircumflex': 667,
+ 'adieresis': 500,
+ 'edieresis': 444,
+ 'cacute': 444,
+ 'nacute': 556,
+ 'umacron': 556,
+ 'Ncaron': 722,
+ 'Iacute': 389,
+ 'plusminus': 570,
+ 'brokenbar': 220,
+ 'registered': 747,
+ 'Gbreve': 722,
+ 'Idotaccent': 389,
+ 'summation': 600,
+ 'Egrave': 667,
+ 'racute': 389,
+ 'omacron': 500,
+ 'Zacute': 611,
+ 'Zcaron': 611,
+ 'greaterequal': 549,
+ 'Eth': 722,
+ 'Ccedilla': 667,
+ 'lcommaaccent': 278,
+ 'tcaron': 366,
+ 'eogonek': 444,
+ 'Uogonek': 722,
+ 'Aacute': 667,
+ 'Adieresis': 667,
+ 'egrave': 444,
+ 'zacute': 389,
+ 'iogonek': 278,
+ 'Oacute': 722,
+ 'oacute': 500,
+ 'amacron': 500,
+ 'sacute': 389,
+ 'idieresis': 278,
+ 'Ocircumflex': 722,
+ 'Ugrave': 722,
+ 'Delta': 612,
+ 'thorn': 500,
+ 'twosuperior': 300,
+ 'Odieresis': 722,
+ 'mu': 576,
+ 'igrave': 278,
+ 'ohungarumlaut': 500,
+ 'Eogonek': 667,
+ 'dcroat': 500,
+ 'threequarters': 750,
+ 'Scedilla': 556,
+ 'lcaron': 382,
+ 'Kcommaaccent': 667,
+ 'Lacute': 611,
+ 'trademark': 1000,
+ 'edotaccent': 444,
+ 'Igrave': 389,
+ 'Imacron': 389,
+ 'Lcaron': 611,
+ 'onehalf': 750,
+ 'lessequal': 549,
+ 'ocircumflex': 500,
+ 'ntilde': 556,
+ 'Uhungarumlaut': 722,
+ 'Eacute': 667,
+ 'emacron': 444,
+ 'gbreve': 500,
+ 'onequarter': 750,
+ 'Scaron': 556,
+ 'Scommaaccent': 556,
+ 'Ohungarumlaut': 722,
+ 'degree': 400,
+ 'ograve': 500,
+ 'Ccaron': 667,
+ 'ugrave': 556,
+ 'radical': 549,
+ 'Dcaron': 722,
+ 'rcommaaccent': 389,
+ 'Ntilde': 722,
+ 'otilde': 500,
+ 'Rcommaaccent': 667,
+ 'Lcommaaccent': 611,
+ 'Atilde': 667,
+ 'Aogonek': 667,
+ 'Aring': 667,
+ 'Otilde': 722,
+ 'zdotaccent': 389,
+ 'Ecaron': 667,
+ 'Iogonek': 389,
+ 'kcommaaccent': 500,
+ 'minus': 606,
+ 'Icircumflex': 389,
+ 'ncaron': 556,
+ 'tcommaaccent': 278,
+ 'logicalnot': 606,
+ 'odieresis': 500,
+ 'udieresis': 556,
+ 'notequal': 549,
+ 'gcommaaccent': 500,
+ 'eth': 500,
+ 'zcaron': 389,
+ 'ncommaaccent': 556,
+ 'onesuperior': 300,
+ 'imacron': 278,
+ 'Euro': 500
+ },
+ 'Times-Italic': {
+ 'space': 250,
+ 'exclam': 333,
+ 'quotedbl': 420,
+ 'numbersign': 500,
+ 'dollar': 500,
+ 'percent': 833,
+ 'ampersand': 778,
+ 'quoteright': 333,
+ 'parenleft': 333,
+ 'parenright': 333,
+ 'asterisk': 500,
+ 'plus': 675,
+ 'comma': 250,
+ 'hyphen': 333,
+ 'period': 250,
+ 'slash': 278,
+ 'zero': 500,
+ 'one': 500,
+ 'two': 500,
+ 'three': 500,
+ 'four': 500,
+ 'five': 500,
+ 'six': 500,
+ 'seven': 500,
+ 'eight': 500,
+ 'nine': 500,
+ 'colon': 333,
+ 'semicolon': 333,
+ 'less': 675,
+ 'equal': 675,
+ 'greater': 675,
+ 'question': 500,
+ 'at': 920,
+ 'A': 611,
+ 'B': 611,
+ 'C': 667,
+ 'D': 722,
+ 'E': 611,
+ 'F': 611,
+ 'G': 722,
+ 'H': 722,
+ 'I': 333,
+ 'J': 444,
+ 'K': 667,
+ 'L': 556,
+ 'M': 833,
+ 'N': 667,
+ 'O': 722,
+ 'P': 611,
+ 'Q': 722,
+ 'R': 611,
+ 'S': 500,
+ 'T': 556,
+ 'U': 722,
+ 'V': 611,
+ 'W': 833,
+ 'X': 611,
+ 'Y': 556,
+ 'Z': 556,
+ 'bracketleft': 389,
+ 'backslash': 278,
+ 'bracketright': 389,
+ 'asciicircum': 422,
+ 'underscore': 500,
+ 'quoteleft': 333,
+ 'a': 500,
+ 'b': 500,
+ 'c': 444,
+ 'd': 500,
+ 'e': 444,
+ 'f': 278,
+ 'g': 500,
+ 'h': 500,
+ 'i': 278,
+ 'j': 278,
+ 'k': 444,
+ 'l': 278,
+ 'm': 722,
+ 'n': 500,
+ 'o': 500,
+ 'p': 500,
+ 'q': 500,
+ 'r': 389,
+ 's': 389,
+ 't': 278,
+ 'u': 500,
+ 'v': 444,
+ 'w': 667,
+ 'x': 444,
+ 'y': 444,
+ 'z': 389,
+ 'braceleft': 400,
+ 'bar': 275,
+ 'braceright': 400,
+ 'asciitilde': 541,
+ 'exclamdown': 389,
+ 'cent': 500,
+ 'sterling': 500,
+ 'fraction': 167,
+ 'yen': 500,
+ 'florin': 500,
+ 'section': 500,
+ 'currency': 500,
+ 'quotesingle': 214,
+ 'quotedblleft': 556,
+ 'guillemotleft': 500,
+ 'guilsinglleft': 333,
+ 'guilsinglright': 333,
+ 'fi': 500,
+ 'fl': 500,
+ 'endash': 500,
+ 'dagger': 500,
+ 'daggerdbl': 500,
+ 'periodcentered': 250,
+ 'paragraph': 523,
+ 'bullet': 350,
+ 'quotesinglbase': 333,
+ 'quotedblbase': 556,
+ 'quotedblright': 556,
+ 'guillemotright': 500,
+ 'ellipsis': 889,
+ 'perthousand': 1000,
+ 'questiondown': 500,
+ 'grave': 333,
+ 'acute': 333,
+ 'circumflex': 333,
+ 'tilde': 333,
+ 'macron': 333,
+ 'breve': 333,
+ 'dotaccent': 333,
+ 'dieresis': 333,
+ 'ring': 333,
+ 'cedilla': 333,
+ 'hungarumlaut': 333,
+ 'ogonek': 333,
+ 'caron': 333,
+ 'emdash': 889,
+ 'AE': 889,
+ 'ordfeminine': 276,
+ 'Lslash': 556,
+ 'Oslash': 722,
+ 'OE': 944,
+ 'ordmasculine': 310,
+ 'ae': 667,
+ 'dotlessi': 278,
+ 'lslash': 278,
+ 'oslash': 500,
+ 'oe': 667,
+ 'germandbls': 500,
+ 'Idieresis': 333,
+ 'eacute': 444,
+ 'abreve': 500,
+ 'uhungarumlaut': 500,
+ 'ecaron': 444,
+ 'Ydieresis': 556,
+ 'divide': 675,
+ 'Yacute': 556,
+ 'Acircumflex': 611,
+ 'aacute': 500,
+ 'Ucircumflex': 722,
+ 'yacute': 444,
+ 'scommaaccent': 389,
+ 'ecircumflex': 444,
+ 'Uring': 722,
+ 'Udieresis': 722,
+ 'aogonek': 500,
+ 'Uacute': 722,
+ 'uogonek': 500,
+ 'Edieresis': 611,
+ 'Dcroat': 722,
+ 'commaaccent': 250,
+ 'copyright': 760,
+ 'Emacron': 611,
+ 'ccaron': 444,
+ 'aring': 500,
+ 'Ncommaaccent': 667,
+ 'lacute': 278,
+ 'agrave': 500,
+ 'Tcommaaccent': 556,
+ 'Cacute': 667,
+ 'atilde': 500,
+ 'Edotaccent': 611,
+ 'scaron': 389,
+ 'scedilla': 389,
+ 'iacute': 278,
+ 'lozenge': 471,
+ 'Rcaron': 611,
+ 'Gcommaaccent': 722,
+ 'ucircumflex': 500,
+ 'acircumflex': 500,
+ 'Amacron': 611,
+ 'rcaron': 389,
+ 'ccedilla': 444,
+ 'Zdotaccent': 556,
+ 'Thorn': 611,
+ 'Omacron': 722,
+ 'Racute': 611,
+ 'Sacute': 500,
+ 'dcaron': 544,
+ 'Umacron': 722,
+ 'uring': 500,
+ 'threesuperior': 300,
+ 'Ograve': 722,
+ 'Agrave': 611,
+ 'Abreve': 611,
+ 'multiply': 675,
+ 'uacute': 500,
+ 'Tcaron': 556,
+ 'partialdiff': 476,
+ 'ydieresis': 444,
+ 'Nacute': 667,
+ 'icircumflex': 278,
+ 'Ecircumflex': 611,
+ 'adieresis': 500,
+ 'edieresis': 444,
+ 'cacute': 444,
+ 'nacute': 500,
+ 'umacron': 500,
+ 'Ncaron': 667,
+ 'Iacute': 333,
+ 'plusminus': 675,
+ 'brokenbar': 275,
+ 'registered': 760,
+ 'Gbreve': 722,
+ 'Idotaccent': 333,
+ 'summation': 600,
+ 'Egrave': 611,
+ 'racute': 389,
+ 'omacron': 500,
+ 'Zacute': 556,
+ 'Zcaron': 556,
+ 'greaterequal': 549,
+ 'Eth': 722,
+ 'Ccedilla': 667,
+ 'lcommaaccent': 278,
+ 'tcaron': 300,
+ 'eogonek': 444,
+ 'Uogonek': 722,
+ 'Aacute': 611,
+ 'Adieresis': 611,
+ 'egrave': 444,
+ 'zacute': 389,
+ 'iogonek': 278,
+ 'Oacute': 722,
+ 'oacute': 500,
+ 'amacron': 500,
+ 'sacute': 389,
+ 'idieresis': 278,
+ 'Ocircumflex': 722,
+ 'Ugrave': 722,
+ 'Delta': 612,
+ 'thorn': 500,
+ 'twosuperior': 300,
+ 'Odieresis': 722,
+ 'mu': 500,
+ 'igrave': 278,
+ 'ohungarumlaut': 500,
+ 'Eogonek': 611,
+ 'dcroat': 500,
+ 'threequarters': 750,
+ 'Scedilla': 500,
+ 'lcaron': 300,
+ 'Kcommaaccent': 667,
+ 'Lacute': 556,
+ 'trademark': 980,
+ 'edotaccent': 444,
+ 'Igrave': 333,
+ 'Imacron': 333,
+ 'Lcaron': 611,
+ 'onehalf': 750,
+ 'lessequal': 549,
+ 'ocircumflex': 500,
+ 'ntilde': 500,
+ 'Uhungarumlaut': 722,
+ 'Eacute': 611,
+ 'emacron': 444,
+ 'gbreve': 500,
+ 'onequarter': 750,
+ 'Scaron': 500,
+ 'Scommaaccent': 500,
+ 'Ohungarumlaut': 722,
+ 'degree': 400,
+ 'ograve': 500,
+ 'Ccaron': 667,
+ 'ugrave': 500,
+ 'radical': 453,
+ 'Dcaron': 722,
+ 'rcommaaccent': 389,
+ 'Ntilde': 667,
+ 'otilde': 500,
+ 'Rcommaaccent': 611,
+ 'Lcommaaccent': 556,
+ 'Atilde': 611,
+ 'Aogonek': 611,
+ 'Aring': 611,
+ 'Otilde': 722,
+ 'zdotaccent': 389,
+ 'Ecaron': 611,
+ 'Iogonek': 333,
+ 'kcommaaccent': 444,
+ 'minus': 675,
+ 'Icircumflex': 333,
+ 'ncaron': 500,
+ 'tcommaaccent': 278,
+ 'logicalnot': 675,
+ 'odieresis': 500,
+ 'udieresis': 500,
+ 'notequal': 549,
+ 'gcommaaccent': 500,
+ 'eth': 500,
+ 'zcaron': 389,
+ 'ncommaaccent': 500,
+ 'onesuperior': 300,
+ 'imacron': 278,
+ 'Euro': 500
+ },
+ 'ZapfDingbats': {
+ 'space': 278,
+ 'a1': 974,
+ 'a2': 961,
+ 'a202': 974,
+ 'a3': 980,
+ 'a4': 719,
+ 'a5': 789,
+ 'a119': 790,
+ 'a118': 791,
+ 'a117': 690,
+ 'a11': 960,
+ 'a12': 939,
+ 'a13': 549,
+ 'a14': 855,
+ 'a15': 911,
+ 'a16': 933,
+ 'a105': 911,
+ 'a17': 945,
+ 'a18': 974,
+ 'a19': 755,
+ 'a20': 846,
+ 'a21': 762,
+ 'a22': 761,
+ 'a23': 571,
+ 'a24': 677,
+ 'a25': 763,
+ 'a26': 760,
+ 'a27': 759,
+ 'a28': 754,
+ 'a6': 494,
+ 'a7': 552,
+ 'a8': 537,
+ 'a9': 577,
+ 'a10': 692,
+ 'a29': 786,
+ 'a30': 788,
+ 'a31': 788,
+ 'a32': 790,
+ 'a33': 793,
+ 'a34': 794,
+ 'a35': 816,
+ 'a36': 823,
+ 'a37': 789,
+ 'a38': 841,
+ 'a39': 823,
+ 'a40': 833,
+ 'a41': 816,
+ 'a42': 831,
+ 'a43': 923,
+ 'a44': 744,
+ 'a45': 723,
+ 'a46': 749,
+ 'a47': 790,
+ 'a48': 792,
+ 'a49': 695,
+ 'a50': 776,
+ 'a51': 768,
+ 'a52': 792,
+ 'a53': 759,
+ 'a54': 707,
+ 'a55': 708,
+ 'a56': 682,
+ 'a57': 701,
+ 'a58': 826,
+ 'a59': 815,
+ 'a60': 789,
+ 'a61': 789,
+ 'a62': 707,
+ 'a63': 687,
+ 'a64': 696,
+ 'a65': 689,
+ 'a66': 786,
+ 'a67': 787,
+ 'a68': 713,
+ 'a69': 791,
+ 'a70': 785,
+ 'a71': 791,
+ 'a72': 873,
+ 'a73': 761,
+ 'a74': 762,
+ 'a203': 762,
+ 'a75': 759,
+ 'a204': 759,
+ 'a76': 892,
+ 'a77': 892,
+ 'a78': 788,
+ 'a79': 784,
+ 'a81': 438,
+ 'a82': 138,
+ 'a83': 277,
+ 'a84': 415,
+ 'a97': 392,
+ 'a98': 392,
+ 'a99': 668,
+ 'a100': 668,
+ 'a89': 390,
+ 'a90': 390,
+ 'a93': 317,
+ 'a94': 317,
+ 'a91': 276,
+ 'a92': 276,
+ 'a205': 509,
+ 'a85': 509,
+ 'a206': 410,
+ 'a86': 410,
+ 'a87': 234,
+ 'a88': 234,
+ 'a95': 334,
+ 'a96': 334,
+ 'a101': 732,
+ 'a102': 544,
+ 'a103': 544,
+ 'a104': 910,
+ 'a106': 667,
+ 'a107': 760,
+ 'a108': 760,
+ 'a112': 776,
+ 'a111': 595,
+ 'a110': 694,
+ 'a109': 626,
+ 'a120': 788,
+ 'a121': 788,
+ 'a122': 788,
+ 'a123': 788,
+ 'a124': 788,
+ 'a125': 788,
+ 'a126': 788,
+ 'a127': 788,
+ 'a128': 788,
+ 'a129': 788,
+ 'a130': 788,
+ 'a131': 788,
+ 'a132': 788,
+ 'a133': 788,
+ 'a134': 788,
+ 'a135': 788,
+ 'a136': 788,
+ 'a137': 788,
+ 'a138': 788,
+ 'a139': 788,
+ 'a140': 788,
+ 'a141': 788,
+ 'a142': 788,
+ 'a143': 788,
+ 'a144': 788,
+ 'a145': 788,
+ 'a146': 788,
+ 'a147': 788,
+ 'a148': 788,
+ 'a149': 788,
+ 'a150': 788,
+ 'a151': 788,
+ 'a152': 788,
+ 'a153': 788,
+ 'a154': 788,
+ 'a155': 788,
+ 'a156': 788,
+ 'a157': 788,
+ 'a158': 788,
+ 'a159': 788,
+ 'a160': 894,
+ 'a161': 838,
+ 'a163': 1016,
+ 'a164': 458,
+ 'a196': 748,
+ 'a165': 924,
+ 'a192': 748,
+ 'a166': 918,
+ 'a167': 927,
+ 'a168': 928,
+ 'a169': 928,
+ 'a170': 834,
+ 'a171': 873,
+ 'a172': 828,
+ 'a173': 924,
+ 'a162': 924,
+ 'a174': 917,
+ 'a175': 930,
+ 'a176': 931,
+ 'a177': 463,
+ 'a178': 883,
+ 'a179': 836,
+ 'a193': 836,
+ 'a180': 867,
+ 'a199': 867,
+ 'a181': 696,
+ 'a200': 696,
+ 'a182': 874,
+ 'a201': 874,
+ 'a183': 760,
+ 'a184': 946,
+ 'a197': 771,
+ 'a185': 865,
+ 'a194': 771,
+ 'a198': 888,
+ 'a186': 967,
+ 'a195': 888,
+ 'a187': 831,
+ 'a188': 873,
+ 'a189': 927,
+ 'a190': 970,
+ 'a191': 918
+ }
+};
+
+
+var EOF = {};
+
+function isEOF(v) {
+ return (v === EOF);
+}
+
+var MAX_LENGTH_TO_CACHE = 1000;
+
+var Parser = (function ParserClosure() {
+ function Parser(lexer, allowStreams, xref) {
+ this.lexer = lexer;
+ this.allowStreams = allowStreams;
+ this.xref = xref;
+ this.imageCache = {};
+ this.refill();
+ }
+
+ Parser.prototype = {
+ refill: function Parser_refill() {
+ this.buf1 = this.lexer.getObj();
+ this.buf2 = this.lexer.getObj();
+ },
+ shift: function Parser_shift() {
+ if (isCmd(this.buf2, 'ID')) {
+ this.buf1 = this.buf2;
+ this.buf2 = null;
+ } else {
+ this.buf1 = this.buf2;
+ this.buf2 = this.lexer.getObj();
+ }
+ },
+ getObj: function Parser_getObj(cipherTransform) {
+ var buf1 = this.buf1;
+ this.shift();
+
+ if (buf1 instanceof Cmd) {
+ switch (buf1.cmd) {
+ case 'BI': // inline image
+ return this.makeInlineImage(cipherTransform);
+ case '[': // array
+ var array = [];
+ while (!isCmd(this.buf1, ']') && !isEOF(this.buf1)) {
+ array.push(this.getObj(cipherTransform));
+ }
+ if (isEOF(this.buf1)) {
+ error('End of file inside array');
+ }
+ this.shift();
+ return array;
+ case '<<': // dictionary or stream
+ var dict = new Dict(this.xref);
+ while (!isCmd(this.buf1, '>>') && !isEOF(this.buf1)) {
+ if (!isName(this.buf1)) {
+ info('Malformed dictionary: key must be a name object');
+ this.shift();
+ continue;
+ }
+
+ var key = this.buf1.name;
+ this.shift();
+ if (isEOF(this.buf1)) {
+ break;
+ }
+ dict.set(key, this.getObj(cipherTransform));
+ }
+ if (isEOF(this.buf1)) {
+ error('End of file inside dictionary');
+ }
+
+ // Stream objects are not allowed inside content streams or
+ // object streams.
+ if (isCmd(this.buf2, 'stream')) {
+ return (this.allowStreams ?
+ this.makeStream(dict, cipherTransform) : dict);
+ }
+ this.shift();
+ return dict;
+ default: // simple object
+ return buf1;
+ }
+ }
+
+ if (isInt(buf1)) { // indirect reference or integer
+ var num = buf1;
+ if (isInt(this.buf1) && isCmd(this.buf2, 'R')) {
+ var ref = new Ref(num, this.buf1);
+ this.shift();
+ this.shift();
+ return ref;
+ }
+ return num;
+ }
+
+ if (isString(buf1)) { // string
+ var str = buf1;
+ if (cipherTransform) {
+ str = cipherTransform.decryptString(str);
+ }
+ return str;
+ }
+
+ // simple object
+ return buf1;
+ },
+ /**
+ * Find the end of the stream by searching for the /EI\s/.
+ * @returns {number} The inline stream length.
+ */
+ findDefaultInlineStreamEnd:
+ function Parser_findDefaultInlineStreamEnd(stream) {
+ var E = 0x45, I = 0x49, SPACE = 0x20, LF = 0xA, CR = 0xD;
+ var startPos = stream.pos, state = 0, ch, i, n, followingBytes;
+ while ((ch = stream.getByte()) !== -1) {
+ if (state === 0) {
+ state = (ch === E) ? 1 : 0;
+ } else if (state === 1) {
+ state = (ch === I) ? 2 : 0;
+ } else {
+ assert(state === 2);
+ if (ch === SPACE || ch === LF || ch === CR) {
+ // Let's check the next five bytes are ASCII... just be sure.
+ n = 5;
+ followingBytes = stream.peekBytes(n);
+ for (i = 0; i < n; i++) {
+ ch = followingBytes[i];
+ if (ch !== LF && ch !== CR && (ch < SPACE || ch > 0x7F)) {
+ // Not a LF, CR, SPACE or any visible ASCII character, i.e.
+ // it's binary stuff. Resetting the state.
+ state = 0;
+ break;
+ }
+ }
+ if (state === 2) {
+ break; // Finished!
+ }
+ } else {
+ state = 0;
+ }
+ }
+ }
+ return ((stream.pos - 4) - startPos);
+ },
+ /**
+ * Find the EOI (end-of-image) marker 0xFFD9 of the stream.
+ * @returns {number} The inline stream length.
+ */
+ findDCTDecodeInlineStreamEnd:
+ function Parser_findDCTDecodeInlineStreamEnd(stream) {
+ var startPos = stream.pos, foundEOI = false, b, markerLength, length;
+ while ((b = stream.getByte()) !== -1) {
+ if (b !== 0xFF) { // Not a valid marker.
+ continue;
+ }
+ switch (stream.getByte()) {
+ case 0x00: // Byte stuffing.
+ // 0xFF00 appears to be a very common byte sequence in JPEG images.
+ break;
+
+ case 0xFF: // Fill byte.
+ // Avoid skipping a valid marker, resetting the stream position.
+ stream.skip(-1);
+ break;
+
+ case 0xD9: // EOI
+ foundEOI = true;
+ break;
+
+ case 0xC0: // SOF0
+ case 0xC1: // SOF1
+ case 0xC2: // SOF2
+ case 0xC3: // SOF3
+
+ case 0xC5: // SOF5
+ case 0xC6: // SOF6
+ case 0xC7: // SOF7
+
+ case 0xC9: // SOF9
+ case 0xCA: // SOF10
+ case 0xCB: // SOF11
+
+ case 0xCD: // SOF13
+ case 0xCE: // SOF14
+ case 0xCF: // SOF15
+
+ case 0xC4: // DHT
+ case 0xCC: // DAC
+
+ case 0xDA: // SOS
+ case 0xDB: // DQT
+ case 0xDC: // DNL
+ case 0xDD: // DRI
+ case 0xDE: // DHP
+ case 0xDF: // EXP
+
+ case 0xE0: // APP0
+ case 0xE1: // APP1
+ case 0xE2: // APP2
+ case 0xE3: // APP3
+ case 0xE4: // APP4
+ case 0xE5: // APP5
+ case 0xE6: // APP6
+ case 0xE7: // APP7
+ case 0xE8: // APP8
+ case 0xE9: // APP9
+ case 0xEA: // APP10
+ case 0xEB: // APP11
+ case 0xEC: // APP12
+ case 0xED: // APP13
+ case 0xEE: // APP14
+ case 0xEF: // APP15
+
+ case 0xFE: // COM
+ // The marker should be followed by the length of the segment.
+ markerLength = stream.getUint16();
+ if (markerLength > 2) {
+ // |markerLength| contains the byte length of the marker segment,
+ // including its own length (2 bytes) and excluding the marker.
+ stream.skip(markerLength - 2); // Jump to the next marker.
+ } else {
+ // The marker length is invalid, resetting the stream position.
+ stream.skip(-2);
+ }
+ break;
+ }
+ if (foundEOI) {
+ break;
+ }
+ }
+ length = stream.pos - startPos;
+ if (b === -1) {
+ warn('Inline DCTDecode image stream: ' +
+ 'EOI marker not found, searching for /EI/ instead.');
+ stream.skip(-length); // Reset the stream position.
+ return this.findDefaultInlineStreamEnd(stream);
+ }
+ this.inlineStreamSkipEI(stream);
+ return length;
+ },
+ /**
+ * Find the EOD (end-of-data) marker '~>' (i.e. TILDE + GT) of the stream.
+ * @returns {number} The inline stream length.
+ */
+ findASCII85DecodeInlineStreamEnd:
+ function Parser_findASCII85DecodeInlineStreamEnd(stream) {
+ var TILDE = 0x7E, GT = 0x3E;
+ var startPos = stream.pos, ch, length;
+ while ((ch = stream.getByte()) !== -1) {
+ if (ch === TILDE && stream.peekByte() === GT) {
+ stream.skip();
+ break;
+ }
+ }
+ length = stream.pos - startPos;
+ if (ch === -1) {
+ warn('Inline ASCII85Decode image stream: ' +
+ 'EOD marker not found, searching for /EI/ instead.');
+ stream.skip(-length); // Reset the stream position.
+ return this.findDefaultInlineStreamEnd(stream);
+ }
+ this.inlineStreamSkipEI(stream);
+ return length;
+ },
+ /**
+ * Find the EOD (end-of-data) marker '>' (i.e. GT) of the stream.
+ * @returns {number} The inline stream length.
+ */
+ findASCIIHexDecodeInlineStreamEnd:
+ function Parser_findASCIIHexDecodeInlineStreamEnd(stream) {
+ var GT = 0x3E;
+ var startPos = stream.pos, ch, length;
+ while ((ch = stream.getByte()) !== -1) {
+ if (ch === GT) {
+ break;
+ }
+ }
+ length = stream.pos - startPos;
+ if (ch === -1) {
+ warn('Inline ASCIIHexDecode image stream: ' +
+ 'EOD marker not found, searching for /EI/ instead.');
+ stream.skip(-length); // Reset the stream position.
+ return this.findDefaultInlineStreamEnd(stream);
+ }
+ this.inlineStreamSkipEI(stream);
+ return length;
+ },
+ /**
+ * Skip over the /EI/ for streams where we search for an EOD marker.
+ */
+ inlineStreamSkipEI: function Parser_inlineStreamSkipEI(stream) {
+ var E = 0x45, I = 0x49;
+ var state = 0, ch;
+ while ((ch = stream.getByte()) !== -1) {
+ if (state === 0) {
+ state = (ch === E) ? 1 : 0;
+ } else if (state === 1) {
+ state = (ch === I) ? 2 : 0;
+ } else if (state === 2) {
+ break;
+ }
+ }
+ },
+ makeInlineImage: function Parser_makeInlineImage(cipherTransform) {
+ var lexer = this.lexer;
+ var stream = lexer.stream;
+
+ // Parse dictionary.
+ var dict = new Dict(null);
+ while (!isCmd(this.buf1, 'ID') && !isEOF(this.buf1)) {
+ if (!isName(this.buf1)) {
+ error('Dictionary key must be a name object');
+ }
+ var key = this.buf1.name;
+ this.shift();
+ if (isEOF(this.buf1)) {
+ break;
+ }
+ dict.set(key, this.getObj(cipherTransform));
+ }
+
+ // Extract the name of the first (i.e. the current) image filter.
+ var filter = this.fetchIfRef(dict.get('Filter', 'F')), filterName;
+ if (isName(filter)) {
+ filterName = filter.name;
+ } else if (isArray(filter) && isName(filter[0])) {
+ filterName = filter[0].name;
+ }
+
+ // Parse image stream.
+ var startPos = stream.pos, length, i, ii;
+ if (filterName === 'DCTDecode' || filterName === 'DCT') {
+ length = this.findDCTDecodeInlineStreamEnd(stream);
+ } else if (filterName === 'ASCII85Decide' || filterName === 'A85') {
+ length = this.findASCII85DecodeInlineStreamEnd(stream);
+ } else if (filterName === 'ASCIIHexDecode' || filterName === 'AHx') {
+ length = this.findASCIIHexDecodeInlineStreamEnd(stream);
+ } else {
+ length = this.findDefaultInlineStreamEnd(stream);
+ }
+ var imageStream = stream.makeSubStream(startPos, length, dict);
+
+ // Cache all images below the MAX_LENGTH_TO_CACHE threshold by their
+ // adler32 checksum.
+ var adler32;
+ if (length < MAX_LENGTH_TO_CACHE) {
+ var imageBytes = imageStream.getBytes();
+ imageStream.reset();
+
+ var a = 1;
+ var b = 0;
+ for (i = 0, ii = imageBytes.length; i < ii; ++i) {
+ // No modulo required in the loop if imageBytes.length < 5552.
+ a += imageBytes[i] & 0xff;
+ b += a;
+ }
+ adler32 = ((b % 65521) << 16) | (a % 65521);
+
+ if (this.imageCache.adler32 === adler32) {
+ this.buf2 = Cmd.get('EI');
+ this.shift();
+
+ this.imageCache[adler32].reset();
+ return this.imageCache[adler32];
+ }
+ }
+
+ if (cipherTransform) {
+ imageStream = cipherTransform.createStream(imageStream, length);
+ }
+
+ imageStream = this.filter(imageStream, dict, length);
+ imageStream.dict = dict;
+ if (adler32 !== undefined) {
+ imageStream.cacheKey = 'inline_' + length + '_' + adler32;
+ this.imageCache[adler32] = imageStream;
+ }
+
+ this.buf2 = Cmd.get('EI');
+ this.shift();
+
+ return imageStream;
+ },
+ fetchIfRef: function Parser_fetchIfRef(obj) {
+ // not relying on the xref.fetchIfRef -- xref might not be set
+ return (isRef(obj) ? this.xref.fetch(obj) : obj);
+ },
+ makeStream: function Parser_makeStream(dict, cipherTransform) {
+ var lexer = this.lexer;
+ var stream = lexer.stream;
+
+ // get stream start position
+ lexer.skipToNextLine();
+ var pos = stream.pos - 1;
+
+ // get length
+ var length = this.fetchIfRef(dict.get('Length'));
+ if (!isInt(length)) {
+ info('Bad ' + length + ' attribute in stream');
+ length = 0;
+ }
+
+ // skip over the stream data
+ stream.pos = pos + length;
+ lexer.nextChar();
+
+ this.shift(); // '>>'
+ this.shift(); // 'stream'
+ if (!isCmd(this.buf1, 'endstream')) {
+ // bad stream length, scanning for endstream
+ stream.pos = pos;
+ var SCAN_BLOCK_SIZE = 2048;
+ var ENDSTREAM_SIGNATURE_LENGTH = 9;
+ var ENDSTREAM_SIGNATURE = [0x65, 0x6E, 0x64, 0x73, 0x74, 0x72, 0x65,
+ 0x61, 0x6D];
+ var skipped = 0, found = false, i, j;
+ while (stream.pos < stream.end) {
+ var scanBytes = stream.peekBytes(SCAN_BLOCK_SIZE);
+ var scanLength = scanBytes.length - ENDSTREAM_SIGNATURE_LENGTH;
+ if (scanLength <= 0) {
+ break;
+ }
+ found = false;
+ for (i = 0, j = 0; i < scanLength; i++) {
+ var b = scanBytes[i];
+ if (b !== ENDSTREAM_SIGNATURE[j]) {
+ i -= j;
+ j = 0;
+ } else {
+ j++;
+ if (j >= ENDSTREAM_SIGNATURE_LENGTH) {
+ i++;
+ found = true;
+ break;
+ }
+ }
+ }
+ if (found) {
+ skipped += i - ENDSTREAM_SIGNATURE_LENGTH;
+ stream.pos += i - ENDSTREAM_SIGNATURE_LENGTH;
+ break;
+ }
+ skipped += scanLength;
+ stream.pos += scanLength;
+ }
+ if (!found) {
+ error('Missing endstream');
+ }
+ length = skipped;
+
+ lexer.nextChar();
+ this.shift();
+ this.shift();
+ }
+ this.shift(); // 'endstream'
+
+ stream = stream.makeSubStream(pos, length, dict);
+ if (cipherTransform) {
+ stream = cipherTransform.createStream(stream, length);
+ }
+ stream = this.filter(stream, dict, length);
+ stream.dict = dict;
+ return stream;
+ },
+ filter: function Parser_filter(stream, dict, length) {
+ var filter = this.fetchIfRef(dict.get('Filter', 'F'));
+ var params = this.fetchIfRef(dict.get('DecodeParms', 'DP'));
+ if (isName(filter)) {
+ return this.makeFilter(stream, filter.name, length, params);
+ }
+
+ var maybeLength = length;
+ if (isArray(filter)) {
+ var filterArray = filter;
+ var paramsArray = params;
+ for (var i = 0, ii = filterArray.length; i < ii; ++i) {
+ filter = filterArray[i];
+ if (!isName(filter)) {
+ error('Bad filter name: ' + filter);
+ }
+
+ params = null;
+ if (isArray(paramsArray) && (i in paramsArray)) {
+ params = paramsArray[i];
+ }
+ stream = this.makeFilter(stream, filter.name, maybeLength, params);
+ // after the first stream the length variable is invalid
+ maybeLength = null;
+ }
+ }
+ return stream;
+ },
+ makeFilter: function Parser_makeFilter(stream, name, maybeLength, params) {
+ if (stream.dict.get('Length') === 0) {
+ return new NullStream(stream);
+ }
+ try {
+ if (params) {
+ params = this.fetchIfRef(params);
+ }
+ var xrefStreamStats = this.xref.stats.streamTypes;
+ if (name === 'FlateDecode' || name === 'Fl') {
+ xrefStreamStats[StreamType.FLATE] = true;
+ if (params) {
+ return new PredictorStream(new FlateStream(stream, maybeLength),
+ maybeLength, params);
+ }
+ return new FlateStream(stream, maybeLength);
+ }
+ if (name === 'LZWDecode' || name === 'LZW') {
+ xrefStreamStats[StreamType.LZW] = true;
+ var earlyChange = 1;
+ if (params) {
+ if (params.has('EarlyChange')) {
+ earlyChange = params.get('EarlyChange');
+ }
+ return new PredictorStream(
+ new LZWStream(stream, maybeLength, earlyChange),
+ maybeLength, params);
+ }
+ return new LZWStream(stream, maybeLength, earlyChange);
+ }
+ if (name === 'DCTDecode' || name === 'DCT') {
+ xrefStreamStats[StreamType.DCT] = true;
+ return new JpegStream(stream, maybeLength, stream.dict, this.xref);
+ }
+ if (name === 'JPXDecode' || name === 'JPX') {
+ xrefStreamStats[StreamType.JPX] = true;
+ return new JpxStream(stream, maybeLength, stream.dict);
+ }
+ if (name === 'ASCII85Decode' || name === 'A85') {
+ xrefStreamStats[StreamType.A85] = true;
+ return new Ascii85Stream(stream, maybeLength);
+ }
+ if (name === 'ASCIIHexDecode' || name === 'AHx') {
+ xrefStreamStats[StreamType.AHX] = true;
+ return new AsciiHexStream(stream, maybeLength);
+ }
+ if (name === 'CCITTFaxDecode' || name === 'CCF') {
+ xrefStreamStats[StreamType.CCF] = true;
+ return new CCITTFaxStream(stream, maybeLength, params);
+ }
+ if (name === 'RunLengthDecode' || name === 'RL') {
+ xrefStreamStats[StreamType.RL] = true;
+ return new RunLengthStream(stream, maybeLength);
+ }
+ if (name === 'JBIG2Decode') {
+ xrefStreamStats[StreamType.JBIG] = true;
+ return new Jbig2Stream(stream, maybeLength, stream.dict);
+ }
+ warn('filter "' + name + '" not supported yet');
+ return stream;
+ } catch (ex) {
+ if (ex instanceof MissingDataException) {
+ throw ex;
+ }
+ warn('Invalid stream: \"' + ex + '\"');
+ return new NullStream(stream);
+ }
+ }
+ };
+
+ return Parser;
+})();
+
+var Lexer = (function LexerClosure() {
+ function Lexer(stream, knownCommands) {
+ this.stream = stream;
+ this.nextChar();
+
+ // While lexing, we build up many strings one char at a time. Using += for
+ // this can result in lots of garbage strings. It's better to build an
+ // array of single-char strings and then join() them together at the end.
+ // And reusing a single array (i.e. |this.strBuf|) over and over for this
+ // purpose uses less memory than using a new array for each string.
+ this.strBuf = [];
+
+ // The PDFs might have "glued" commands with other commands, operands or
+ // literals, e.g. "q1". The knownCommands is a dictionary of the valid
+ // commands and their prefixes. The prefixes are built the following way:
+ // if there a command that is a prefix of the other valid command or
+ // literal (e.g. 'f' and 'false') the following prefixes must be included,
+ // 'fa', 'fal', 'fals'. The prefixes are not needed, if the command has no
+ // other commands or literals as a prefix. The knowCommands is optional.
+ this.knownCommands = knownCommands;
+ }
+
+ Lexer.isSpace = function Lexer_isSpace(ch) {
+ // Space is one of the following characters: SPACE, TAB, CR or LF.
+ return (ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A);
+ };
+
+ // A '1' in this array means the character is white space. A '1' or
+ // '2' means the character ends a name or command.
+ var specialChars = [
+ 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, // 0x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 1x
+ 1, 0, 0, 0, 0, 2, 0, 0, 2, 2, 0, 0, 0, 0, 0, 2, // 2x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, // 3x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 4x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, // 5x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 6x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, // 7x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 8x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 9x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // ax
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // bx
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // cx
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // dx
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // ex
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // fx
+ ];
+
+ function toHexDigit(ch) {
+ if (ch >= 0x30 && ch <= 0x39) { // '0'-'9'
+ return ch & 0x0F;
+ }
+ if ((ch >= 0x41 && ch <= 0x46) || (ch >= 0x61 && ch <= 0x66)) {
+ // 'A'-'F', 'a'-'f'
+ return (ch & 0x0F) + 9;
+ }
+ return -1;
+ }
+
+ Lexer.prototype = {
+ nextChar: function Lexer_nextChar() {
+ return (this.currentChar = this.stream.getByte());
+ },
+ peekChar: function Lexer_peekChar() {
+ return this.stream.peekByte();
+ },
+ getNumber: function Lexer_getNumber() {
+ var ch = this.currentChar;
+ var eNotation = false;
+ var divideBy = 0; // different from 0 if it's a floating point value
+ var sign = 1;
+
+ if (ch === 0x2D) { // '-'
+ sign = -1;
+ ch = this.nextChar();
+ } else if (ch === 0x2B) { // '+'
+ ch = this.nextChar();
+ }
+ if (ch === 0x2E) { // '.'
+ divideBy = 10;
+ ch = this.nextChar();
+ }
+ if (ch < 0x30 || ch > 0x39) { // '0' - '9'
+ error('Invalid number: ' + String.fromCharCode(ch));
+ return 0;
+ }
+
+ var baseValue = ch - 0x30; // '0'
+ var powerValue = 0;
+ var powerValueSign = 1;
+
+ while ((ch = this.nextChar()) >= 0) {
+ if (0x30 <= ch && ch <= 0x39) { // '0' - '9'
+ var currentDigit = ch - 0x30; // '0'
+ if (eNotation) { // We are after an 'e' or 'E'
+ powerValue = powerValue * 10 + currentDigit;
+ } else {
+ if (divideBy !== 0) { // We are after a point
+ divideBy *= 10;
+ }
+ baseValue = baseValue * 10 + currentDigit;
+ }
+ } else if (ch === 0x2E) { // '.'
+ if (divideBy === 0) {
+ divideBy = 1;
+ } else {
+ // A number can have only one '.'
+ break;
+ }
+ } else if (ch === 0x2D) { // '-'
+ // ignore minus signs in the middle of numbers to match
+ // Adobe's behavior
+ warn('Badly formated number');
+ } else if (ch === 0x45 || ch === 0x65) { // 'E', 'e'
+ // 'E' can be either a scientific notation or the beginning of a new
+ // operator
+ ch = this.peekChar();
+ if (ch === 0x2B || ch === 0x2D) { // '+', '-'
+ powerValueSign = (ch === 0x2D) ? -1 : 1;
+ this.nextChar(); // Consume the sign character
+ } else if (ch < 0x30 || ch > 0x39) { // '0' - '9'
+ // The 'E' must be the beginning of a new operator
+ break;
+ }
+ eNotation = true;
+ } else {
+ // the last character doesn't belong to us
+ break;
+ }
+ }
+
+ if (divideBy !== 0) {
+ baseValue /= divideBy;
+ }
+ if (eNotation) {
+ baseValue *= Math.pow(10, powerValueSign * powerValue);
+ }
+ return sign * baseValue;
+ },
+ getString: function Lexer_getString() {
+ var numParen = 1;
+ var done = false;
+ var strBuf = this.strBuf;
+ strBuf.length = 0;
+
+ var ch = this.nextChar();
+ while (true) {
+ var charBuffered = false;
+ switch (ch | 0) {
+ case -1:
+ warn('Unterminated string');
+ done = true;
+ break;
+ case 0x28: // '('
+ ++numParen;
+ strBuf.push('(');
+ break;
+ case 0x29: // ')'
+ if (--numParen === 0) {
+ this.nextChar(); // consume strings ')'
+ done = true;
+ } else {
+ strBuf.push(')');
+ }
+ break;
+ case 0x5C: // '\\'
+ ch = this.nextChar();
+ switch (ch) {
+ case -1:
+ warn('Unterminated string');
+ done = true;
+ break;
+ case 0x6E: // 'n'
+ strBuf.push('\n');
+ break;
+ case 0x72: // 'r'
+ strBuf.push('\r');
+ break;
+ case 0x74: // 't'
+ strBuf.push('\t');
+ break;
+ case 0x62: // 'b'
+ strBuf.push('\b');
+ break;
+ case 0x66: // 'f'
+ strBuf.push('\f');
+ break;
+ case 0x5C: // '\'
+ case 0x28: // '('
+ case 0x29: // ')'
+ strBuf.push(String.fromCharCode(ch));
+ break;
+ case 0x30: case 0x31: case 0x32: case 0x33: // '0'-'3'
+ case 0x34: case 0x35: case 0x36: case 0x37: // '4'-'7'
+ var x = ch & 0x0F;
+ ch = this.nextChar();
+ charBuffered = true;
+ if (ch >= 0x30 && ch <= 0x37) { // '0'-'7'
+ x = (x << 3) + (ch & 0x0F);
+ ch = this.nextChar();
+ if (ch >= 0x30 && ch <= 0x37) { // '0'-'7'
+ charBuffered = false;
+ x = (x << 3) + (ch & 0x0F);
+ }
+ }
+ strBuf.push(String.fromCharCode(x));
+ break;
+ case 0x0D: // CR
+ if (this.peekChar() === 0x0A) { // LF
+ this.nextChar();
+ }
+ break;
+ case 0x0A: // LF
+ break;
+ default:
+ strBuf.push(String.fromCharCode(ch));
+ break;
+ }
+ break;
+ default:
+ strBuf.push(String.fromCharCode(ch));
+ break;
+ }
+ if (done) {
+ break;
+ }
+ if (!charBuffered) {
+ ch = this.nextChar();
+ }
+ }
+ return strBuf.join('');
+ },
+ getName: function Lexer_getName() {
+ var ch;
+ var strBuf = this.strBuf;
+ strBuf.length = 0;
+ while ((ch = this.nextChar()) >= 0 && !specialChars[ch]) {
+ if (ch === 0x23) { // '#'
+ ch = this.nextChar();
+ var x = toHexDigit(ch);
+ if (x !== -1) {
+ var x2 = toHexDigit(this.nextChar());
+ if (x2 === -1) {
+ error('Illegal digit in hex char in name: ' + x2);
+ }
+ strBuf.push(String.fromCharCode((x << 4) | x2));
+ } else {
+ strBuf.push('#', String.fromCharCode(ch));
+ }
+ } else {
+ strBuf.push(String.fromCharCode(ch));
+ }
+ }
+ if (strBuf.length > 128) {
+ error('Warning: name token is longer than allowed by the spec: ' +
+ strBuf.length);
+ }
+ return Name.get(strBuf.join(''));
+ },
+ getHexString: function Lexer_getHexString() {
+ var strBuf = this.strBuf;
+ strBuf.length = 0;
+ var ch = this.currentChar;
+ var isFirstHex = true;
+ var firstDigit;
+ var secondDigit;
+ while (true) {
+ if (ch < 0) {
+ warn('Unterminated hex string');
+ break;
+ } else if (ch === 0x3E) { // '>'
+ this.nextChar();
+ break;
+ } else if (specialChars[ch] === 1) {
+ ch = this.nextChar();
+ continue;
+ } else {
+ if (isFirstHex) {
+ firstDigit = toHexDigit(ch);
+ if (firstDigit === -1) {
+ warn('Ignoring invalid character "' + ch + '" in hex string');
+ ch = this.nextChar();
+ continue;
+ }
+ } else {
+ secondDigit = toHexDigit(ch);
+ if (secondDigit === -1) {
+ warn('Ignoring invalid character "' + ch + '" in hex string');
+ ch = this.nextChar();
+ continue;
+ }
+ strBuf.push(String.fromCharCode((firstDigit << 4) | secondDigit));
+ }
+ isFirstHex = !isFirstHex;
+ ch = this.nextChar();
+ }
+ }
+ return strBuf.join('');
+ },
+ getObj: function Lexer_getObj() {
+ // skip whitespace and comments
+ var comment = false;
+ var ch = this.currentChar;
+ while (true) {
+ if (ch < 0) {
+ return EOF;
+ }
+ if (comment) {
+ if (ch === 0x0A || ch === 0x0D) { // LF, CR
+ comment = false;
+ }
+ } else if (ch === 0x25) { // '%'
+ comment = true;
+ } else if (specialChars[ch] !== 1) {
+ break;
+ }
+ ch = this.nextChar();
+ }
+
+ // start reading token
+ switch (ch | 0) {
+ case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: // '0'-'4'
+ case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: // '5'-'9'
+ case 0x2B: case 0x2D: case 0x2E: // '+', '-', '.'
+ return this.getNumber();
+ case 0x28: // '('
+ return this.getString();
+ case 0x2F: // '/'
+ return this.getName();
+ // array punctuation
+ case 0x5B: // '['
+ this.nextChar();
+ return Cmd.get('[');
+ case 0x5D: // ']'
+ this.nextChar();
+ return Cmd.get(']');
+ // hex string or dict punctuation
+ case 0x3C: // '<'
+ ch = this.nextChar();
+ if (ch === 0x3C) {
+ // dict punctuation
+ this.nextChar();
+ return Cmd.get('<<');
+ }
+ return this.getHexString();
+ // dict punctuation
+ case 0x3E: // '>'
+ ch = this.nextChar();
+ if (ch === 0x3E) {
+ this.nextChar();
+ return Cmd.get('>>');
+ }
+ return Cmd.get('>');
+ case 0x7B: // '{'
+ this.nextChar();
+ return Cmd.get('{');
+ case 0x7D: // '}'
+ this.nextChar();
+ return Cmd.get('}');
+ case 0x29: // ')'
+ error('Illegal character: ' + ch);
+ break;
+ }
+
+ // command
+ var str = String.fromCharCode(ch);
+ var knownCommands = this.knownCommands;
+ var knownCommandFound = knownCommands && knownCommands[str] !== undefined;
+ while ((ch = this.nextChar()) >= 0 && !specialChars[ch]) {
+ // stop if known command is found and next character does not make
+ // the str a command
+ var possibleCommand = str + String.fromCharCode(ch);
+ if (knownCommandFound && knownCommands[possibleCommand] === undefined) {
+ break;
+ }
+ if (str.length === 128) {
+ error('Command token too long: ' + str.length);
+ }
+ str = possibleCommand;
+ knownCommandFound = knownCommands && knownCommands[str] !== undefined;
+ }
+ if (str === 'true') {
+ return true;
+ }
+ if (str === 'false') {
+ return false;
+ }
+ if (str === 'null') {
+ return null;
+ }
+ return Cmd.get(str);
+ },
+ skipToNextLine: function Lexer_skipToNextLine() {
+ var ch = this.currentChar;
+ while (ch >= 0) {
+ if (ch === 0x0D) { // CR
+ ch = this.nextChar();
+ if (ch === 0x0A) { // LF
+ this.nextChar();
+ }
+ break;
+ } else if (ch === 0x0A) { // LF
+ this.nextChar();
+ break;
+ }
+ ch = this.nextChar();
+ }
+ }
+ };
+
+ return Lexer;
+})();
+
+var Linearization = {
+ create: function LinearizationCreate(stream) {
+ function getInt(name, allowZeroValue) {
+ var obj = linDict.get(name);
+ if (isInt(obj) && (allowZeroValue ? obj >= 0 : obj > 0)) {
+ return obj;
+ }
+ throw new Error('The "' + name + '" parameter in the linearization ' +
+ 'dictionary is invalid.');
+ }
+ function getHints() {
+ var hints = linDict.get('H'), hintsLength, item;
+ if (isArray(hints) &&
+ ((hintsLength = hints.length) === 2 || hintsLength === 4)) {
+ for (var index = 0; index < hintsLength; index++) {
+ if (!(isInt(item = hints[index]) && item > 0)) {
+ throw new Error('Hint (' + index +
+ ') in the linearization dictionary is invalid.');
+ }
+ }
+ return hints;
+ }
+ throw new Error('Hint array in the linearization dictionary is invalid.');
+ }
+ var parser = new Parser(new Lexer(stream), false, null);
+ var obj1 = parser.getObj();
+ var obj2 = parser.getObj();
+ var obj3 = parser.getObj();
+ var linDict = parser.getObj();
+ var obj, length;
+ if (!(isInt(obj1) && isInt(obj2) && isCmd(obj3, 'obj') && isDict(linDict) &&
+ isNum(obj = linDict.get('Linearized')) && obj > 0)) {
+ return null; // No valid linearization dictionary found.
+ } else if ((length = getInt('L')) !== stream.length) {
+ throw new Error('The "L" parameter in the linearization dictionary ' +
+ 'does not equal the stream length.');
+ }
+ return {
+ length: length,
+ hints: getHints(),
+ objectNumberFirst: getInt('O'),
+ endFirst: getInt('E'),
+ numPages: getInt('N'),
+ mainXRefEntriesOffset: getInt('T'),
+ pageFirst: (linDict.has('P') ? getInt('P', true) : 0)
+ };
+ }
+};
+
+
+var PostScriptParser = (function PostScriptParserClosure() {
+ function PostScriptParser(lexer) {
+ this.lexer = lexer;
+ this.operators = [];
+ this.token = null;
+ this.prev = null;
+ }
+ PostScriptParser.prototype = {
+ nextToken: function PostScriptParser_nextToken() {
+ this.prev = this.token;
+ this.token = this.lexer.getToken();
+ },
+ accept: function PostScriptParser_accept(type) {
+ if (this.token.type === type) {
+ this.nextToken();
+ return true;
+ }
+ return false;
+ },
+ expect: function PostScriptParser_expect(type) {
+ if (this.accept(type)) {
+ return true;
+ }
+ error('Unexpected symbol: found ' + this.token.type + ' expected ' +
+ type + '.');
+ },
+ parse: function PostScriptParser_parse() {
+ this.nextToken();
+ this.expect(PostScriptTokenTypes.LBRACE);
+ this.parseBlock();
+ this.expect(PostScriptTokenTypes.RBRACE);
+ return this.operators;
+ },
+ parseBlock: function PostScriptParser_parseBlock() {
+ while (true) {
+ if (this.accept(PostScriptTokenTypes.NUMBER)) {
+ this.operators.push(this.prev.value);
+ } else if (this.accept(PostScriptTokenTypes.OPERATOR)) {
+ this.operators.push(this.prev.value);
+ } else if (this.accept(PostScriptTokenTypes.LBRACE)) {
+ this.parseCondition();
+ } else {
+ return;
+ }
+ }
+ },
+ parseCondition: function PostScriptParser_parseCondition() {
+ // Add two place holders that will be updated later
+ var conditionLocation = this.operators.length;
+ this.operators.push(null, null);
+
+ this.parseBlock();
+ this.expect(PostScriptTokenTypes.RBRACE);
+ if (this.accept(PostScriptTokenTypes.IF)) {
+ // The true block is right after the 'if' so it just falls through on
+ // true else it jumps and skips the true block.
+ this.operators[conditionLocation] = this.operators.length;
+ this.operators[conditionLocation + 1] = 'jz';
+ } else if (this.accept(PostScriptTokenTypes.LBRACE)) {
+ var jumpLocation = this.operators.length;
+ this.operators.push(null, null);
+ var endOfTrue = this.operators.length;
+ this.parseBlock();
+ this.expect(PostScriptTokenTypes.RBRACE);
+ this.expect(PostScriptTokenTypes.IFELSE);
+ // The jump is added at the end of the true block to skip the false
+ // block.
+ this.operators[jumpLocation] = this.operators.length;
+ this.operators[jumpLocation + 1] = 'j';
+
+ this.operators[conditionLocation] = endOfTrue;
+ this.operators[conditionLocation + 1] = 'jz';
+ } else {
+ error('PS Function: error parsing conditional.');
+ }
+ }
+ };
+ return PostScriptParser;
+})();
+
+var PostScriptTokenTypes = {
+ LBRACE: 0,
+ RBRACE: 1,
+ NUMBER: 2,
+ OPERATOR: 3,
+ IF: 4,
+ IFELSE: 5
+};
+
+var PostScriptToken = (function PostScriptTokenClosure() {
+ function PostScriptToken(type, value) {
+ this.type = type;
+ this.value = value;
+ }
+
+ var opCache = {};
+
+ PostScriptToken.getOperator = function PostScriptToken_getOperator(op) {
+ var opValue = opCache[op];
+ if (opValue) {
+ return opValue;
+ }
+ return opCache[op] = new PostScriptToken(PostScriptTokenTypes.OPERATOR, op);
+ };
+
+ PostScriptToken.LBRACE = new PostScriptToken(PostScriptTokenTypes.LBRACE,
+ '{');
+ PostScriptToken.RBRACE = new PostScriptToken(PostScriptTokenTypes.RBRACE,
+ '}');
+ PostScriptToken.IF = new PostScriptToken(PostScriptTokenTypes.IF, 'IF');
+ PostScriptToken.IFELSE = new PostScriptToken(PostScriptTokenTypes.IFELSE,
+ 'IFELSE');
+ return PostScriptToken;
+})();
+
+var PostScriptLexer = (function PostScriptLexerClosure() {
+ function PostScriptLexer(stream) {
+ this.stream = stream;
+ this.nextChar();
+
+ this.strBuf = [];
+ }
+ PostScriptLexer.prototype = {
+ nextChar: function PostScriptLexer_nextChar() {
+ return (this.currentChar = this.stream.getByte());
+ },
+ getToken: function PostScriptLexer_getToken() {
+ var comment = false;
+ var ch = this.currentChar;
+
+ // skip comments
+ while (true) {
+ if (ch < 0) {
+ return EOF;
+ }
+
+ if (comment) {
+ if (ch === 0x0A || ch === 0x0D) {
+ comment = false;
+ }
+ } else if (ch === 0x25) { // '%'
+ comment = true;
+ } else if (!Lexer.isSpace(ch)) {
+ break;
+ }
+ ch = this.nextChar();
+ }
+ switch (ch | 0) {
+ case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: // '0'-'4'
+ case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: // '5'-'9'
+ case 0x2B: case 0x2D: case 0x2E: // '+', '-', '.'
+ return new PostScriptToken(PostScriptTokenTypes.NUMBER,
+ this.getNumber());
+ case 0x7B: // '{'
+ this.nextChar();
+ return PostScriptToken.LBRACE;
+ case 0x7D: // '}'
+ this.nextChar();
+ return PostScriptToken.RBRACE;
+ }
+ // operator
+ var strBuf = this.strBuf;
+ strBuf.length = 0;
+ strBuf[0] = String.fromCharCode(ch);
+
+ while ((ch = this.nextChar()) >= 0 && // and 'A'-'Z', 'a'-'z'
+ ((ch >= 0x41 && ch <= 0x5A) || (ch >= 0x61 && ch <= 0x7A))) {
+ strBuf.push(String.fromCharCode(ch));
+ }
+ var str = strBuf.join('');
+ switch (str.toLowerCase()) {
+ case 'if':
+ return PostScriptToken.IF;
+ case 'ifelse':
+ return PostScriptToken.IFELSE;
+ default:
+ return PostScriptToken.getOperator(str);
+ }
+ },
+ getNumber: function PostScriptLexer_getNumber() {
+ var ch = this.currentChar;
+ var strBuf = this.strBuf;
+ strBuf.length = 0;
+ strBuf[0] = String.fromCharCode(ch);
+
+ while ((ch = this.nextChar()) >= 0) {
+ if ((ch >= 0x30 && ch <= 0x39) || // '0'-'9'
+ ch === 0x2D || ch === 0x2E) { // '-', '.'
+ strBuf.push(String.fromCharCode(ch));
+ } else {
+ break;
+ }
+ }
+ var value = parseFloat(strBuf.join(''));
+ if (isNaN(value)) {
+ error('Invalid floating point number: ' + value);
+ }
+ return value;
+ }
+ };
+ return PostScriptLexer;
+})();
+
+
+var Stream = (function StreamClosure() {
+ function Stream(arrayBuffer, start, length, dict) {
+ this.bytes = (arrayBuffer instanceof Uint8Array ?
+ arrayBuffer : new Uint8Array(arrayBuffer));
+ this.start = start || 0;
+ this.pos = this.start;
+ this.end = (start + length) || this.bytes.length;
+ this.dict = dict;
+ }
+
+ // required methods for a stream. if a particular stream does not
+ // implement these, an error should be thrown
+ Stream.prototype = {
+ get length() {
+ return this.end - this.start;
+ },
+ get isEmpty() {
+ return this.length === 0;
+ },
+ getByte: function Stream_getByte() {
+ if (this.pos >= this.end) {
+ return -1;
+ }
+ return this.bytes[this.pos++];
+ },
+ getUint16: function Stream_getUint16() {
+ var b0 = this.getByte();
+ var b1 = this.getByte();
+ if (b0 === -1 || b1 === -1) {
+ return -1;
+ }
+ return (b0 << 8) + b1;
+ },
+ getInt32: function Stream_getInt32() {
+ var b0 = this.getByte();
+ var b1 = this.getByte();
+ var b2 = this.getByte();
+ var b3 = this.getByte();
+ return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3;
+ },
+ // returns subarray of original buffer
+ // should only be read
+ getBytes: function Stream_getBytes(length) {
+ var bytes = this.bytes;
+ var pos = this.pos;
+ var strEnd = this.end;
+
+ if (!length) {
+ return bytes.subarray(pos, strEnd);
+ }
+ var end = pos + length;
+ if (end > strEnd) {
+ end = strEnd;
+ }
+ this.pos = end;
+ return bytes.subarray(pos, end);
+ },
+ peekByte: function Stream_peekByte() {
+ var peekedByte = this.getByte();
+ this.pos--;
+ return peekedByte;
+ },
+ peekBytes: function Stream_peekBytes(length) {
+ var bytes = this.getBytes(length);
+ this.pos -= bytes.length;
+ return bytes;
+ },
+ skip: function Stream_skip(n) {
+ if (!n) {
+ n = 1;
+ }
+ this.pos += n;
+ },
+ reset: function Stream_reset() {
+ this.pos = this.start;
+ },
+ moveStart: function Stream_moveStart() {
+ this.start = this.pos;
+ },
+ makeSubStream: function Stream_makeSubStream(start, length, dict) {
+ return new Stream(this.bytes.buffer, start, length, dict);
+ },
+ isStream: true
+ };
+
+ return Stream;
+})();
+
+var StringStream = (function StringStreamClosure() {
+ function StringStream(str) {
+ var length = str.length;
+ var bytes = new Uint8Array(length);
+ for (var n = 0; n < length; ++n) {
+ bytes[n] = str.charCodeAt(n);
+ }
+ Stream.call(this, bytes);
+ }
+
+ StringStream.prototype = Stream.prototype;
+
+ return StringStream;
+})();
+
+// super class for the decoding streams
+var DecodeStream = (function DecodeStreamClosure() {
+ // Lots of DecodeStreams are created whose buffers are never used. For these
+ // we share a single empty buffer. This is (a) space-efficient and (b) avoids
+ // having special cases that would be required if we used |null| for an empty
+ // buffer.
+ var emptyBuffer = new Uint8Array(0);
+
+ function DecodeStream(maybeMinBufferLength) {
+ this.pos = 0;
+ this.bufferLength = 0;
+ this.eof = false;
+ this.buffer = emptyBuffer;
+ this.minBufferLength = 512;
+ if (maybeMinBufferLength) {
+ // Compute the first power of two that is as big as maybeMinBufferLength.
+ while (this.minBufferLength < maybeMinBufferLength) {
+ this.minBufferLength *= 2;
+ }
+ }
+ }
+
+ DecodeStream.prototype = {
+ get isEmpty() {
+ while (!this.eof && this.bufferLength === 0) {
+ this.readBlock();
+ }
+ return this.bufferLength === 0;
+ },
+ ensureBuffer: function DecodeStream_ensureBuffer(requested) {
+ var buffer = this.buffer;
+ if (requested <= buffer.byteLength) {
+ return buffer;
+ }
+ var size = this.minBufferLength;
+ while (size < requested) {
+ size *= 2;
+ }
+ var buffer2 = new Uint8Array(size);
+ buffer2.set(buffer);
+ return (this.buffer = buffer2);
+ },
+ getByte: function DecodeStream_getByte() {
+ var pos = this.pos;
+ while (this.bufferLength <= pos) {
+ if (this.eof) {
+ return -1;
+ }
+ this.readBlock();
+ }
+ return this.buffer[this.pos++];
+ },
+ getUint16: function DecodeStream_getUint16() {
+ var b0 = this.getByte();
+ var b1 = this.getByte();
+ if (b0 === -1 || b1 === -1) {
+ return -1;
+ }
+ return (b0 << 8) + b1;
+ },
+ getInt32: function DecodeStream_getInt32() {
+ var b0 = this.getByte();
+ var b1 = this.getByte();
+ var b2 = this.getByte();
+ var b3 = this.getByte();
+ return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3;
+ },
+ getBytes: function DecodeStream_getBytes(length) {
+ var end, pos = this.pos;
+
+ if (length) {
+ this.ensureBuffer(pos + length);
+ end = pos + length;
+
+ while (!this.eof && this.bufferLength < end) {
+ this.readBlock();
+ }
+ var bufEnd = this.bufferLength;
+ if (end > bufEnd) {
+ end = bufEnd;
+ }
+ } else {
+ while (!this.eof) {
+ this.readBlock();
+ }
+ end = this.bufferLength;
+ }
+
+ this.pos = end;
+ return this.buffer.subarray(pos, end);
+ },
+ peekByte: function DecodeStream_peekByte() {
+ var peekedByte = this.getByte();
+ this.pos--;
+ return peekedByte;
+ },
+ peekBytes: function DecodeStream_peekBytes(length) {
+ var bytes = this.getBytes(length);
+ this.pos -= bytes.length;
+ return bytes;
+ },
+ makeSubStream: function DecodeStream_makeSubStream(start, length, dict) {
+ var end = start + length;
+ while (this.bufferLength <= end && !this.eof) {
+ this.readBlock();
+ }
+ return new Stream(this.buffer, start, length, dict);
+ },
+ skip: function DecodeStream_skip(n) {
+ if (!n) {
+ n = 1;
+ }
+ this.pos += n;
+ },
+ reset: function DecodeStream_reset() {
+ this.pos = 0;
+ },
+ getBaseStreams: function DecodeStream_getBaseStreams() {
+ if (this.str && this.str.getBaseStreams) {
+ return this.str.getBaseStreams();
+ }
+ return [];
+ }
+ };
+
+ return DecodeStream;
+})();
+
+var StreamsSequenceStream = (function StreamsSequenceStreamClosure() {
+ function StreamsSequenceStream(streams) {
+ this.streams = streams;
+ DecodeStream.call(this, /* maybeLength = */ null);
+ }
+
+ StreamsSequenceStream.prototype = Object.create(DecodeStream.prototype);
+
+ StreamsSequenceStream.prototype.readBlock =
+ function streamSequenceStreamReadBlock() {
+
+ var streams = this.streams;
+ if (streams.length === 0) {
+ this.eof = true;
+ return;
+ }
+ var stream = streams.shift();
+ var chunk = stream.getBytes();
+ var bufferLength = this.bufferLength;
+ var newLength = bufferLength + chunk.length;
+ var buffer = this.ensureBuffer(newLength);
+ buffer.set(chunk, bufferLength);
+ this.bufferLength = newLength;
+ };
+
+ StreamsSequenceStream.prototype.getBaseStreams =
+ function StreamsSequenceStream_getBaseStreams() {
+
+ var baseStreams = [];
+ for (var i = 0, ii = this.streams.length; i < ii; i++) {
+ var stream = this.streams[i];
+ if (stream.getBaseStreams) {
+ Util.appendToArray(baseStreams, stream.getBaseStreams());
+ }
+ }
+ return baseStreams;
+ };
+
+ return StreamsSequenceStream;
+})();
+
+var FlateStream = (function FlateStreamClosure() {
+ var codeLenCodeMap = new Int32Array([
+ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
+ ]);
+
+ var lengthDecode = new Int32Array([
+ 0x00003, 0x00004, 0x00005, 0x00006, 0x00007, 0x00008, 0x00009, 0x0000a,
+ 0x1000b, 0x1000d, 0x1000f, 0x10011, 0x20013, 0x20017, 0x2001b, 0x2001f,
+ 0x30023, 0x3002b, 0x30033, 0x3003b, 0x40043, 0x40053, 0x40063, 0x40073,
+ 0x50083, 0x500a3, 0x500c3, 0x500e3, 0x00102, 0x00102, 0x00102
+ ]);
+
+ var distDecode = new Int32Array([
+ 0x00001, 0x00002, 0x00003, 0x00004, 0x10005, 0x10007, 0x20009, 0x2000d,
+ 0x30011, 0x30019, 0x40021, 0x40031, 0x50041, 0x50061, 0x60081, 0x600c1,
+ 0x70101, 0x70181, 0x80201, 0x80301, 0x90401, 0x90601, 0xa0801, 0xa0c01,
+ 0xb1001, 0xb1801, 0xc2001, 0xc3001, 0xd4001, 0xd6001
+ ]);
+
+ var fixedLitCodeTab = [new Int32Array([
+ 0x70100, 0x80050, 0x80010, 0x80118, 0x70110, 0x80070, 0x80030, 0x900c0,
+ 0x70108, 0x80060, 0x80020, 0x900a0, 0x80000, 0x80080, 0x80040, 0x900e0,
+ 0x70104, 0x80058, 0x80018, 0x90090, 0x70114, 0x80078, 0x80038, 0x900d0,
+ 0x7010c, 0x80068, 0x80028, 0x900b0, 0x80008, 0x80088, 0x80048, 0x900f0,
+ 0x70102, 0x80054, 0x80014, 0x8011c, 0x70112, 0x80074, 0x80034, 0x900c8,
+ 0x7010a, 0x80064, 0x80024, 0x900a8, 0x80004, 0x80084, 0x80044, 0x900e8,
+ 0x70106, 0x8005c, 0x8001c, 0x90098, 0x70116, 0x8007c, 0x8003c, 0x900d8,
+ 0x7010e, 0x8006c, 0x8002c, 0x900b8, 0x8000c, 0x8008c, 0x8004c, 0x900f8,
+ 0x70101, 0x80052, 0x80012, 0x8011a, 0x70111, 0x80072, 0x80032, 0x900c4,
+ 0x70109, 0x80062, 0x80022, 0x900a4, 0x80002, 0x80082, 0x80042, 0x900e4,
+ 0x70105, 0x8005a, 0x8001a, 0x90094, 0x70115, 0x8007a, 0x8003a, 0x900d4,
+ 0x7010d, 0x8006a, 0x8002a, 0x900b4, 0x8000a, 0x8008a, 0x8004a, 0x900f4,
+ 0x70103, 0x80056, 0x80016, 0x8011e, 0x70113, 0x80076, 0x80036, 0x900cc,
+ 0x7010b, 0x80066, 0x80026, 0x900ac, 0x80006, 0x80086, 0x80046, 0x900ec,
+ 0x70107, 0x8005e, 0x8001e, 0x9009c, 0x70117, 0x8007e, 0x8003e, 0x900dc,
+ 0x7010f, 0x8006e, 0x8002e, 0x900bc, 0x8000e, 0x8008e, 0x8004e, 0x900fc,
+ 0x70100, 0x80051, 0x80011, 0x80119, 0x70110, 0x80071, 0x80031, 0x900c2,
+ 0x70108, 0x80061, 0x80021, 0x900a2, 0x80001, 0x80081, 0x80041, 0x900e2,
+ 0x70104, 0x80059, 0x80019, 0x90092, 0x70114, 0x80079, 0x80039, 0x900d2,
+ 0x7010c, 0x80069, 0x80029, 0x900b2, 0x80009, 0x80089, 0x80049, 0x900f2,
+ 0x70102, 0x80055, 0x80015, 0x8011d, 0x70112, 0x80075, 0x80035, 0x900ca,
+ 0x7010a, 0x80065, 0x80025, 0x900aa, 0x80005, 0x80085, 0x80045, 0x900ea,
+ 0x70106, 0x8005d, 0x8001d, 0x9009a, 0x70116, 0x8007d, 0x8003d, 0x900da,
+ 0x7010e, 0x8006d, 0x8002d, 0x900ba, 0x8000d, 0x8008d, 0x8004d, 0x900fa,
+ 0x70101, 0x80053, 0x80013, 0x8011b, 0x70111, 0x80073, 0x80033, 0x900c6,
+ 0x70109, 0x80063, 0x80023, 0x900a6, 0x80003, 0x80083, 0x80043, 0x900e6,
+ 0x70105, 0x8005b, 0x8001b, 0x90096, 0x70115, 0x8007b, 0x8003b, 0x900d6,
+ 0x7010d, 0x8006b, 0x8002b, 0x900b6, 0x8000b, 0x8008b, 0x8004b, 0x900f6,
+ 0x70103, 0x80057, 0x80017, 0x8011f, 0x70113, 0x80077, 0x80037, 0x900ce,
+ 0x7010b, 0x80067, 0x80027, 0x900ae, 0x80007, 0x80087, 0x80047, 0x900ee,
+ 0x70107, 0x8005f, 0x8001f, 0x9009e, 0x70117, 0x8007f, 0x8003f, 0x900de,
+ 0x7010f, 0x8006f, 0x8002f, 0x900be, 0x8000f, 0x8008f, 0x8004f, 0x900fe,
+ 0x70100, 0x80050, 0x80010, 0x80118, 0x70110, 0x80070, 0x80030, 0x900c1,
+ 0x70108, 0x80060, 0x80020, 0x900a1, 0x80000, 0x80080, 0x80040, 0x900e1,
+ 0x70104, 0x80058, 0x80018, 0x90091, 0x70114, 0x80078, 0x80038, 0x900d1,
+ 0x7010c, 0x80068, 0x80028, 0x900b1, 0x80008, 0x80088, 0x80048, 0x900f1,
+ 0x70102, 0x80054, 0x80014, 0x8011c, 0x70112, 0x80074, 0x80034, 0x900c9,
+ 0x7010a, 0x80064, 0x80024, 0x900a9, 0x80004, 0x80084, 0x80044, 0x900e9,
+ 0x70106, 0x8005c, 0x8001c, 0x90099, 0x70116, 0x8007c, 0x8003c, 0x900d9,
+ 0x7010e, 0x8006c, 0x8002c, 0x900b9, 0x8000c, 0x8008c, 0x8004c, 0x900f9,
+ 0x70101, 0x80052, 0x80012, 0x8011a, 0x70111, 0x80072, 0x80032, 0x900c5,
+ 0x70109, 0x80062, 0x80022, 0x900a5, 0x80002, 0x80082, 0x80042, 0x900e5,
+ 0x70105, 0x8005a, 0x8001a, 0x90095, 0x70115, 0x8007a, 0x8003a, 0x900d5,
+ 0x7010d, 0x8006a, 0x8002a, 0x900b5, 0x8000a, 0x8008a, 0x8004a, 0x900f5,
+ 0x70103, 0x80056, 0x80016, 0x8011e, 0x70113, 0x80076, 0x80036, 0x900cd,
+ 0x7010b, 0x80066, 0x80026, 0x900ad, 0x80006, 0x80086, 0x80046, 0x900ed,
+ 0x70107, 0x8005e, 0x8001e, 0x9009d, 0x70117, 0x8007e, 0x8003e, 0x900dd,
+ 0x7010f, 0x8006e, 0x8002e, 0x900bd, 0x8000e, 0x8008e, 0x8004e, 0x900fd,
+ 0x70100, 0x80051, 0x80011, 0x80119, 0x70110, 0x80071, 0x80031, 0x900c3,
+ 0x70108, 0x80061, 0x80021, 0x900a3, 0x80001, 0x80081, 0x80041, 0x900e3,
+ 0x70104, 0x80059, 0x80019, 0x90093, 0x70114, 0x80079, 0x80039, 0x900d3,
+ 0x7010c, 0x80069, 0x80029, 0x900b3, 0x80009, 0x80089, 0x80049, 0x900f3,
+ 0x70102, 0x80055, 0x80015, 0x8011d, 0x70112, 0x80075, 0x80035, 0x900cb,
+ 0x7010a, 0x80065, 0x80025, 0x900ab, 0x80005, 0x80085, 0x80045, 0x900eb,
+ 0x70106, 0x8005d, 0x8001d, 0x9009b, 0x70116, 0x8007d, 0x8003d, 0x900db,
+ 0x7010e, 0x8006d, 0x8002d, 0x900bb, 0x8000d, 0x8008d, 0x8004d, 0x900fb,
+ 0x70101, 0x80053, 0x80013, 0x8011b, 0x70111, 0x80073, 0x80033, 0x900c7,
+ 0x70109, 0x80063, 0x80023, 0x900a7, 0x80003, 0x80083, 0x80043, 0x900e7,
+ 0x70105, 0x8005b, 0x8001b, 0x90097, 0x70115, 0x8007b, 0x8003b, 0x900d7,
+ 0x7010d, 0x8006b, 0x8002b, 0x900b7, 0x8000b, 0x8008b, 0x8004b, 0x900f7,
+ 0x70103, 0x80057, 0x80017, 0x8011f, 0x70113, 0x80077, 0x80037, 0x900cf,
+ 0x7010b, 0x80067, 0x80027, 0x900af, 0x80007, 0x80087, 0x80047, 0x900ef,
+ 0x70107, 0x8005f, 0x8001f, 0x9009f, 0x70117, 0x8007f, 0x8003f, 0x900df,
+ 0x7010f, 0x8006f, 0x8002f, 0x900bf, 0x8000f, 0x8008f, 0x8004f, 0x900ff
+ ]), 9];
+
+ var fixedDistCodeTab = [new Int32Array([
+ 0x50000, 0x50010, 0x50008, 0x50018, 0x50004, 0x50014, 0x5000c, 0x5001c,
+ 0x50002, 0x50012, 0x5000a, 0x5001a, 0x50006, 0x50016, 0x5000e, 0x00000,
+ 0x50001, 0x50011, 0x50009, 0x50019, 0x50005, 0x50015, 0x5000d, 0x5001d,
+ 0x50003, 0x50013, 0x5000b, 0x5001b, 0x50007, 0x50017, 0x5000f, 0x00000
+ ]), 5];
+
+ function FlateStream(str, maybeLength) {
+ this.str = str;
+ this.dict = str.dict;
+
+ var cmf = str.getByte();
+ var flg = str.getByte();
+ if (cmf === -1 || flg === -1) {
+ error('Invalid header in flate stream: ' + cmf + ', ' + flg);
+ }
+ if ((cmf & 0x0f) !== 0x08) {
+ error('Unknown compression method in flate stream: ' + cmf + ', ' + flg);
+ }
+ if ((((cmf << 8) + flg) % 31) !== 0) {
+ error('Bad FCHECK in flate stream: ' + cmf + ', ' + flg);
+ }
+ if (flg & 0x20) {
+ error('FDICT bit set in flate stream: ' + cmf + ', ' + flg);
+ }
+
+ this.codeSize = 0;
+ this.codeBuf = 0;
+
+ DecodeStream.call(this, maybeLength);
+ }
+
+ FlateStream.prototype = Object.create(DecodeStream.prototype);
+
+ FlateStream.prototype.getBits = function FlateStream_getBits(bits) {
+ var str = this.str;
+ var codeSize = this.codeSize;
+ var codeBuf = this.codeBuf;
+
+ var b;
+ while (codeSize < bits) {
+ if ((b = str.getByte()) === -1) {
+ error('Bad encoding in flate stream');
+ }
+ codeBuf |= b << codeSize;
+ codeSize += 8;
+ }
+ b = codeBuf & ((1 << bits) - 1);
+ this.codeBuf = codeBuf >> bits;
+ this.codeSize = codeSize -= bits;
+
+ return b;
+ };
+
+ FlateStream.prototype.getCode = function FlateStream_getCode(table) {
+ var str = this.str;
+ var codes = table[0];
+ var maxLen = table[1];
+ var codeSize = this.codeSize;
+ var codeBuf = this.codeBuf;
+
+ var b;
+ while (codeSize < maxLen) {
+ if ((b = str.getByte()) === -1) {
+ // premature end of stream. code might however still be valid.
+ // codeSize < codeLen check below guards against incomplete codeVal.
+ break;
+ }
+ codeBuf |= (b << codeSize);
+ codeSize += 8;
+ }
+ var code = codes[codeBuf & ((1 << maxLen) - 1)];
+ var codeLen = code >> 16;
+ var codeVal = code & 0xffff;
+ if (codeLen < 1 || codeSize < codeLen) {
+ error('Bad encoding in flate stream');
+ }
+ this.codeBuf = (codeBuf >> codeLen);
+ this.codeSize = (codeSize - codeLen);
+ return codeVal;
+ };
+
+ FlateStream.prototype.generateHuffmanTable =
+ function flateStreamGenerateHuffmanTable(lengths) {
+ var n = lengths.length;
+
+ // find max code length
+ var maxLen = 0;
+ var i;
+ for (i = 0; i < n; ++i) {
+ if (lengths[i] > maxLen) {
+ maxLen = lengths[i];
+ }
+ }
+
+ // build the table
+ var size = 1 << maxLen;
+ var codes = new Int32Array(size);
+ for (var len = 1, code = 0, skip = 2;
+ len <= maxLen;
+ ++len, code <<= 1, skip <<= 1) {
+ for (var val = 0; val < n; ++val) {
+ if (lengths[val] === len) {
+ // bit-reverse the code
+ var code2 = 0;
+ var t = code;
+ for (i = 0; i < len; ++i) {
+ code2 = (code2 << 1) | (t & 1);
+ t >>= 1;
+ }
+
+ // fill the table entries
+ for (i = code2; i < size; i += skip) {
+ codes[i] = (len << 16) | val;
+ }
+ ++code;
+ }
+ }
+ }
+
+ return [codes, maxLen];
+ };
+
+ FlateStream.prototype.readBlock = function FlateStream_readBlock() {
+ var buffer, len;
+ var str = this.str;
+ // read block header
+ var hdr = this.getBits(3);
+ if (hdr & 1) {
+ this.eof = true;
+ }
+ hdr >>= 1;
+
+ if (hdr === 0) { // uncompressed block
+ var b;
+
+ if ((b = str.getByte()) === -1) {
+ error('Bad block header in flate stream');
+ }
+ var blockLen = b;
+ if ((b = str.getByte()) === -1) {
+ error('Bad block header in flate stream');
+ }
+ blockLen |= (b << 8);
+ if ((b = str.getByte()) === -1) {
+ error('Bad block header in flate stream');
+ }
+ var check = b;
+ if ((b = str.getByte()) === -1) {
+ error('Bad block header in flate stream');
+ }
+ check |= (b << 8);
+ if (check !== (~blockLen & 0xffff) &&
+ (blockLen !== 0 || check !== 0)) {
+ // Ignoring error for bad "empty" block (see issue 1277)
+ error('Bad uncompressed block length in flate stream');
+ }
+
+ this.codeBuf = 0;
+ this.codeSize = 0;
+
+ var bufferLength = this.bufferLength;
+ buffer = this.ensureBuffer(bufferLength + blockLen);
+ var end = bufferLength + blockLen;
+ this.bufferLength = end;
+ if (blockLen === 0) {
+ if (str.peekByte() === -1) {
+ this.eof = true;
+ }
+ } else {
+ for (var n = bufferLength; n < end; ++n) {
+ if ((b = str.getByte()) === -1) {
+ this.eof = true;
+ break;
+ }
+ buffer[n] = b;
+ }
+ }
+ return;
+ }
+
+ var litCodeTable;
+ var distCodeTable;
+ if (hdr === 1) { // compressed block, fixed codes
+ litCodeTable = fixedLitCodeTab;
+ distCodeTable = fixedDistCodeTab;
+ } else if (hdr === 2) { // compressed block, dynamic codes
+ var numLitCodes = this.getBits(5) + 257;
+ var numDistCodes = this.getBits(5) + 1;
+ var numCodeLenCodes = this.getBits(4) + 4;
+
+ // build the code lengths code table
+ var codeLenCodeLengths = new Uint8Array(codeLenCodeMap.length);
+
+ var i;
+ for (i = 0; i < numCodeLenCodes; ++i) {
+ codeLenCodeLengths[codeLenCodeMap[i]] = this.getBits(3);
+ }
+ var codeLenCodeTab = this.generateHuffmanTable(codeLenCodeLengths);
+
+ // build the literal and distance code tables
+ len = 0;
+ i = 0;
+ var codes = numLitCodes + numDistCodes;
+ var codeLengths = new Uint8Array(codes);
+ var bitsLength, bitsOffset, what;
+ while (i < codes) {
+ var code = this.getCode(codeLenCodeTab);
+ if (code === 16) {
+ bitsLength = 2; bitsOffset = 3; what = len;
+ } else if (code === 17) {
+ bitsLength = 3; bitsOffset = 3; what = (len = 0);
+ } else if (code === 18) {
+ bitsLength = 7; bitsOffset = 11; what = (len = 0);
+ } else {
+ codeLengths[i++] = len = code;
+ continue;
+ }
+
+ var repeatLength = this.getBits(bitsLength) + bitsOffset;
+ while (repeatLength-- > 0) {
+ codeLengths[i++] = what;
+ }
+ }
+
+ litCodeTable =
+ this.generateHuffmanTable(codeLengths.subarray(0, numLitCodes));
+ distCodeTable =
+ this.generateHuffmanTable(codeLengths.subarray(numLitCodes, codes));
+ } else {
+ error('Unknown block type in flate stream');
+ }
+
+ buffer = this.buffer;
+ var limit = buffer ? buffer.length : 0;
+ var pos = this.bufferLength;
+ while (true) {
+ var code1 = this.getCode(litCodeTable);
+ if (code1 < 256) {
+ if (pos + 1 >= limit) {
+ buffer = this.ensureBuffer(pos + 1);
+ limit = buffer.length;
+ }
+ buffer[pos++] = code1;
+ continue;
+ }
+ if (code1 === 256) {
+ this.bufferLength = pos;
+ return;
+ }
+ code1 -= 257;
+ code1 = lengthDecode[code1];
+ var code2 = code1 >> 16;
+ if (code2 > 0) {
+ code2 = this.getBits(code2);
+ }
+ len = (code1 & 0xffff) + code2;
+ code1 = this.getCode(distCodeTable);
+ code1 = distDecode[code1];
+ code2 = code1 >> 16;
+ if (code2 > 0) {
+ code2 = this.getBits(code2);
+ }
+ var dist = (code1 & 0xffff) + code2;
+ if (pos + len >= limit) {
+ buffer = this.ensureBuffer(pos + len);
+ limit = buffer.length;
+ }
+ for (var k = 0; k < len; ++k, ++pos) {
+ buffer[pos] = buffer[pos - dist];
+ }
+ }
+ };
+
+ return FlateStream;
+})();
+
+var PredictorStream = (function PredictorStreamClosure() {
+ function PredictorStream(str, maybeLength, params) {
+ var predictor = this.predictor = params.get('Predictor') || 1;
+
+ if (predictor <= 1) {
+ return str; // no prediction
+ }
+ if (predictor !== 2 && (predictor < 10 || predictor > 15)) {
+ error('Unsupported predictor: ' + predictor);
+ }
+
+ if (predictor === 2) {
+ this.readBlock = this.readBlockTiff;
+ } else {
+ this.readBlock = this.readBlockPng;
+ }
+
+ this.str = str;
+ this.dict = str.dict;
+
+ var colors = this.colors = params.get('Colors') || 1;
+ var bits = this.bits = params.get('BitsPerComponent') || 8;
+ var columns = this.columns = params.get('Columns') || 1;
+
+ this.pixBytes = (colors * bits + 7) >> 3;
+ this.rowBytes = (columns * colors * bits + 7) >> 3;
+
+ DecodeStream.call(this, maybeLength);
+ return this;
+ }
+
+ PredictorStream.prototype = Object.create(DecodeStream.prototype);
+
+ PredictorStream.prototype.readBlockTiff =
+ function predictorStreamReadBlockTiff() {
+ var rowBytes = this.rowBytes;
+
+ var bufferLength = this.bufferLength;
+ var buffer = this.ensureBuffer(bufferLength + rowBytes);
+
+ var bits = this.bits;
+ var colors = this.colors;
+
+ var rawBytes = this.str.getBytes(rowBytes);
+ this.eof = !rawBytes.length;
+ if (this.eof) {
+ return;
+ }
+
+ var inbuf = 0, outbuf = 0;
+ var inbits = 0, outbits = 0;
+ var pos = bufferLength;
+ var i;
+
+ if (bits === 1) {
+ for (i = 0; i < rowBytes; ++i) {
+ var c = rawBytes[i];
+ inbuf = (inbuf << 8) | c;
+ // bitwise addition is exclusive or
+ // first shift inbuf and then add
+ buffer[pos++] = (c ^ (inbuf >> colors)) & 0xFF;
+ // truncate inbuf (assumes colors < 16)
+ inbuf &= 0xFFFF;
+ }
+ } else if (bits === 8) {
+ for (i = 0; i < colors; ++i) {
+ buffer[pos++] = rawBytes[i];
+ }
+ for (; i < rowBytes; ++i) {
+ buffer[pos] = buffer[pos - colors] + rawBytes[i];
+ pos++;
+ }
+ } else {
+ var compArray = new Uint8Array(colors + 1);
+ var bitMask = (1 << bits) - 1;
+ var j = 0, k = bufferLength;
+ var columns = this.columns;
+ for (i = 0; i < columns; ++i) {
+ for (var kk = 0; kk < colors; ++kk) {
+ if (inbits < bits) {
+ inbuf = (inbuf << 8) | (rawBytes[j++] & 0xFF);
+ inbits += 8;
+ }
+ compArray[kk] = (compArray[kk] +
+ (inbuf >> (inbits - bits))) & bitMask;
+ inbits -= bits;
+ outbuf = (outbuf << bits) | compArray[kk];
+ outbits += bits;
+ if (outbits >= 8) {
+ buffer[k++] = (outbuf >> (outbits - 8)) & 0xFF;
+ outbits -= 8;
+ }
+ }
+ }
+ if (outbits > 0) {
+ buffer[k++] = (outbuf << (8 - outbits)) +
+ (inbuf & ((1 << (8 - outbits)) - 1));
+ }
+ }
+ this.bufferLength += rowBytes;
+ };
+
+ PredictorStream.prototype.readBlockPng =
+ function predictorStreamReadBlockPng() {
+
+ var rowBytes = this.rowBytes;
+ var pixBytes = this.pixBytes;
+
+ var predictor = this.str.getByte();
+ var rawBytes = this.str.getBytes(rowBytes);
+ this.eof = !rawBytes.length;
+ if (this.eof) {
+ return;
+ }
+
+ var bufferLength = this.bufferLength;
+ var buffer = this.ensureBuffer(bufferLength + rowBytes);
+
+ var prevRow = buffer.subarray(bufferLength - rowBytes, bufferLength);
+ if (prevRow.length === 0) {
+ prevRow = new Uint8Array(rowBytes);
+ }
+
+ var i, j = bufferLength, up, c;
+ switch (predictor) {
+ case 0:
+ for (i = 0; i < rowBytes; ++i) {
+ buffer[j++] = rawBytes[i];
+ }
+ break;
+ case 1:
+ for (i = 0; i < pixBytes; ++i) {
+ buffer[j++] = rawBytes[i];
+ }
+ for (; i < rowBytes; ++i) {
+ buffer[j] = (buffer[j - pixBytes] + rawBytes[i]) & 0xFF;
+ j++;
+ }
+ break;
+ case 2:
+ for (i = 0; i < rowBytes; ++i) {
+ buffer[j++] = (prevRow[i] + rawBytes[i]) & 0xFF;
+ }
+ break;
+ case 3:
+ for (i = 0; i < pixBytes; ++i) {
+ buffer[j++] = (prevRow[i] >> 1) + rawBytes[i];
+ }
+ for (; i < rowBytes; ++i) {
+ buffer[j] = (((prevRow[i] + buffer[j - pixBytes]) >> 1) +
+ rawBytes[i]) & 0xFF;
+ j++;
+ }
+ break;
+ case 4:
+ // we need to save the up left pixels values. the simplest way
+ // is to create a new buffer
+ for (i = 0; i < pixBytes; ++i) {
+ up = prevRow[i];
+ c = rawBytes[i];
+ buffer[j++] = up + c;
+ }
+ for (; i < rowBytes; ++i) {
+ up = prevRow[i];
+ var upLeft = prevRow[i - pixBytes];
+ var left = buffer[j - pixBytes];
+ var p = left + up - upLeft;
+
+ var pa = p - left;
+ if (pa < 0) {
+ pa = -pa;
+ }
+ var pb = p - up;
+ if (pb < 0) {
+ pb = -pb;
+ }
+ var pc = p - upLeft;
+ if (pc < 0) {
+ pc = -pc;
+ }
+
+ c = rawBytes[i];
+ if (pa <= pb && pa <= pc) {
+ buffer[j++] = left + c;
+ } else if (pb <= pc) {
+ buffer[j++] = up + c;
+ } else {
+ buffer[j++] = upLeft + c;
+ }
+ }
+ break;
+ default:
+ error('Unsupported predictor: ' + predictor);
+ }
+ this.bufferLength += rowBytes;
+ };
+
+ return PredictorStream;
+})();
+
+/**
+ * Depending on the type of JPEG a JpegStream is handled in different ways. For
+ * JPEG's that are supported natively such as DeviceGray and DeviceRGB the image
+ * data is stored and then loaded by the browser. For unsupported JPEG's we use
+ * a library to decode these images and the stream behaves like all the other
+ * DecodeStreams.
+ */
+var JpegStream = (function JpegStreamClosure() {
+ function JpegStream(stream, maybeLength, dict, xref) {
+ // Some images may contain 'junk' before the SOI (start-of-image) marker.
+ // Note: this seems to mainly affect inline images.
+ var ch;
+ while ((ch = stream.getByte()) !== -1) {
+ if (ch === 0xFF) { // Find the first byte of the SOI marker (0xFFD8).
+ stream.skip(-1); // Reset the stream position to the SOI.
+ break;
+ }
+ }
+ this.stream = stream;
+ this.maybeLength = maybeLength;
+ this.dict = dict;
+
+ DecodeStream.call(this, maybeLength);
+ }
+
+ JpegStream.prototype = Object.create(DecodeStream.prototype);
+
+ Object.defineProperty(JpegStream.prototype, 'bytes', {
+ get: function JpegStream_bytes() {
+ // If this.maybeLength is null, we'll get the entire stream.
+ return shadow(this, 'bytes', this.stream.getBytes(this.maybeLength));
+ },
+ configurable: true
+ });
+
+ JpegStream.prototype.ensureBuffer = function JpegStream_ensureBuffer(req) {
+ if (this.bufferLength) {
+ return;
+ }
+ try {
+ var jpegImage = new JpegImage();
+
+ // checking if values needs to be transformed before conversion
+ if (this.forceRGB && this.dict && isArray(this.dict.get('Decode'))) {
+ var decodeArr = this.dict.get('Decode');
+ var bitsPerComponent = this.dict.get('BitsPerComponent') || 8;
+ var decodeArrLength = decodeArr.length;
+ var transform = new Int32Array(decodeArrLength);
+ var transformNeeded = false;
+ var maxValue = (1 << bitsPerComponent) - 1;
+ for (var i = 0; i < decodeArrLength; i += 2) {
+ transform[i] = ((decodeArr[i + 1] - decodeArr[i]) * 256) | 0;
+ transform[i + 1] = (decodeArr[i] * maxValue) | 0;
+ if (transform[i] !== 256 || transform[i + 1] !== 0) {
+ transformNeeded = true;
+ }
+ }
+ if (transformNeeded) {
+ jpegImage.decodeTransform = transform;
+ }
+ }
+
+ jpegImage.parse(this.bytes);
+ var data = jpegImage.getData(this.drawWidth, this.drawHeight,
+ this.forceRGB);
+ this.buffer = data;
+ this.bufferLength = data.length;
+ this.eof = true;
+ } catch (e) {
+ error('JPEG error: ' + e);
+ }
+ };
+
+ JpegStream.prototype.getBytes = function JpegStream_getBytes(length) {
+ this.ensureBuffer();
+ return this.buffer;
+ };
+
+ JpegStream.prototype.getIR = function JpegStream_getIR() {
+ return PDFJS.createObjectURL(this.bytes, 'image/jpeg');
+ };
+ /**
+ * Checks if the image can be decoded and displayed by the browser without any
+ * further processing such as color space conversions.
+ */
+ JpegStream.prototype.isNativelySupported =
+ function JpegStream_isNativelySupported(xref, res) {
+ var cs = ColorSpace.parse(this.dict.get('ColorSpace', 'CS'), xref, res);
+ return cs.name === 'DeviceGray' || cs.name === 'DeviceRGB';
+ };
+ /**
+ * Checks if the image can be decoded by the browser.
+ */
+ JpegStream.prototype.isNativelyDecodable =
+ function JpegStream_isNativelyDecodable(xref, res) {
+ var cs = ColorSpace.parse(this.dict.get('ColorSpace', 'CS'), xref, res);
+ var numComps = cs.numComps;
+ return numComps === 1 || numComps === 3;
+ };
+
+ return JpegStream;
+})();
+
+/**
+ * For JPEG 2000's we use a library to decode these images and
+ * the stream behaves like all the other DecodeStreams.
+ */
+var JpxStream = (function JpxStreamClosure() {
+ function JpxStream(stream, maybeLength, dict) {
+ this.stream = stream;
+ this.maybeLength = maybeLength;
+ this.dict = dict;
+
+ DecodeStream.call(this, maybeLength);
+ }
+
+ JpxStream.prototype = Object.create(DecodeStream.prototype);
+
+ Object.defineProperty(JpxStream.prototype, 'bytes', {
+ get: function JpxStream_bytes() {
+ // If this.maybeLength is null, we'll get the entire stream.
+ return shadow(this, 'bytes', this.stream.getBytes(this.maybeLength));
+ },
+ configurable: true
+ });
+
+ JpxStream.prototype.ensureBuffer = function JpxStream_ensureBuffer(req) {
+ if (this.bufferLength) {
+ return;
+ }
+
+ var jpxImage = new JpxImage();
+ jpxImage.parse(this.bytes);
+
+ var width = jpxImage.width;
+ var height = jpxImage.height;
+ var componentsCount = jpxImage.componentsCount;
+ var tileCount = jpxImage.tiles.length;
+ if (tileCount === 1) {
+ this.buffer = jpxImage.tiles[0].items;
+ } else {
+ var data = new Uint8Array(width * height * componentsCount);
+
+ for (var k = 0; k < tileCount; k++) {
+ var tileComponents = jpxImage.tiles[k];
+ var tileWidth = tileComponents.width;
+ var tileHeight = tileComponents.height;
+ var tileLeft = tileComponents.left;
+ var tileTop = tileComponents.top;
+
+ var src = tileComponents.items;
+ var srcPosition = 0;
+ var dataPosition = (width * tileTop + tileLeft) * componentsCount;
+ var imgRowSize = width * componentsCount;
+ var tileRowSize = tileWidth * componentsCount;
+
+ for (var j = 0; j < tileHeight; j++) {
+ var rowBytes = src.subarray(srcPosition, srcPosition + tileRowSize);
+ data.set(rowBytes, dataPosition);
+ srcPosition += tileRowSize;
+ dataPosition += imgRowSize;
+ }
+ }
+ this.buffer = data;
+ }
+ this.bufferLength = this.buffer.length;
+ this.eof = true;
+ };
+
+ return JpxStream;
+})();
+
+/**
+ * For JBIG2's we use a library to decode these images and
+ * the stream behaves like all the other DecodeStreams.
+ */
+var Jbig2Stream = (function Jbig2StreamClosure() {
+ function Jbig2Stream(stream, maybeLength, dict) {
+ this.stream = stream;
+ this.maybeLength = maybeLength;
+ this.dict = dict;
+
+ DecodeStream.call(this, maybeLength);
+ }
+
+ Jbig2Stream.prototype = Object.create(DecodeStream.prototype);
+
+ Object.defineProperty(Jbig2Stream.prototype, 'bytes', {
+ get: function Jbig2Stream_bytes() {
+ // If this.maybeLength is null, we'll get the entire stream.
+ return shadow(this, 'bytes', this.stream.getBytes(this.maybeLength));
+ },
+ configurable: true
+ });
+
+ Jbig2Stream.prototype.ensureBuffer = function Jbig2Stream_ensureBuffer(req) {
+ if (this.bufferLength) {
+ return;
+ }
+
+ var jbig2Image = new Jbig2Image();
+
+ var chunks = [], xref = this.dict.xref;
+ var decodeParams = xref.fetchIfRef(this.dict.get('DecodeParms'));
+
+ // According to the PDF specification, DecodeParms can be either
+ // a dictionary, or an array whose elements are dictionaries.
+ if (isArray(decodeParams)) {
+ if (decodeParams.length > 1) {
+ warn('JBIG2 - \'DecodeParms\' array with multiple elements ' +
+ 'not supported.');
+ }
+ decodeParams = xref.fetchIfRef(decodeParams[0]);
+ }
+ if (decodeParams && decodeParams.has('JBIG2Globals')) {
+ var globalsStream = decodeParams.get('JBIG2Globals');
+ var globals = globalsStream.getBytes();
+ chunks.push({data: globals, start: 0, end: globals.length});
+ }
+ chunks.push({data: this.bytes, start: 0, end: this.bytes.length});
+ var data = jbig2Image.parseChunks(chunks);
+ var dataLength = data.length;
+
+ // JBIG2 had black as 1 and white as 0, inverting the colors
+ for (var i = 0; i < dataLength; i++) {
+ data[i] ^= 0xFF;
+ }
+
+ this.buffer = data;
+ this.bufferLength = dataLength;
+ this.eof = true;
+ };
+
+ return Jbig2Stream;
+})();
+
+var DecryptStream = (function DecryptStreamClosure() {
+ function DecryptStream(str, maybeLength, decrypt) {
+ this.str = str;
+ this.dict = str.dict;
+ this.decrypt = decrypt;
+ this.nextChunk = null;
+ this.initialized = false;
+
+ DecodeStream.call(this, maybeLength);
+ }
+
+ var chunkSize = 512;
+
+ DecryptStream.prototype = Object.create(DecodeStream.prototype);
+
+ DecryptStream.prototype.readBlock = function DecryptStream_readBlock() {
+ var chunk;
+ if (this.initialized) {
+ chunk = this.nextChunk;
+ } else {
+ chunk = this.str.getBytes(chunkSize);
+ this.initialized = true;
+ }
+ if (!chunk || chunk.length === 0) {
+ this.eof = true;
+ return;
+ }
+ this.nextChunk = this.str.getBytes(chunkSize);
+ var hasMoreData = this.nextChunk && this.nextChunk.length > 0;
+
+ var decrypt = this.decrypt;
+ chunk = decrypt(chunk, !hasMoreData);
+
+ var bufferLength = this.bufferLength;
+ var i, n = chunk.length;
+ var buffer = this.ensureBuffer(bufferLength + n);
+ for (i = 0; i < n; i++) {
+ buffer[bufferLength++] = chunk[i];
+ }
+ this.bufferLength = bufferLength;
+ };
+
+ return DecryptStream;
+})();
+
+var Ascii85Stream = (function Ascii85StreamClosure() {
+ function Ascii85Stream(str, maybeLength) {
+ this.str = str;
+ this.dict = str.dict;
+ this.input = new Uint8Array(5);
+
+ // Most streams increase in size when decoded, but Ascii85 streams
+ // typically shrink by ~20%.
+ if (maybeLength) {
+ maybeLength = 0.8 * maybeLength;
+ }
+ DecodeStream.call(this, maybeLength);
+ }
+
+ Ascii85Stream.prototype = Object.create(DecodeStream.prototype);
+
+ Ascii85Stream.prototype.readBlock = function Ascii85Stream_readBlock() {
+ var TILDA_CHAR = 0x7E; // '~'
+ var Z_LOWER_CHAR = 0x7A; // 'z'
+ var EOF = -1;
+
+ var str = this.str;
+
+ var c = str.getByte();
+ while (Lexer.isSpace(c)) {
+ c = str.getByte();
+ }
+
+ if (c === EOF || c === TILDA_CHAR) {
+ this.eof = true;
+ return;
+ }
+
+ var bufferLength = this.bufferLength, buffer;
+ var i;
+
+ // special code for z
+ if (c === Z_LOWER_CHAR) {
+ buffer = this.ensureBuffer(bufferLength + 4);
+ for (i = 0; i < 4; ++i) {
+ buffer[bufferLength + i] = 0;
+ }
+ this.bufferLength += 4;
+ } else {
+ var input = this.input;
+ input[0] = c;
+ for (i = 1; i < 5; ++i) {
+ c = str.getByte();
+ while (Lexer.isSpace(c)) {
+ c = str.getByte();
+ }
+
+ input[i] = c;
+
+ if (c === EOF || c === TILDA_CHAR) {
+ break;
+ }
+ }
+ buffer = this.ensureBuffer(bufferLength + i - 1);
+ this.bufferLength += i - 1;
+
+ // partial ending;
+ if (i < 5) {
+ for (; i < 5; ++i) {
+ input[i] = 0x21 + 84;
+ }
+ this.eof = true;
+ }
+ var t = 0;
+ for (i = 0; i < 5; ++i) {
+ t = t * 85 + (input[i] - 0x21);
+ }
+
+ for (i = 3; i >= 0; --i) {
+ buffer[bufferLength + i] = t & 0xFF;
+ t >>= 8;
+ }
+ }
+ };
+
+ return Ascii85Stream;
+})();
+
+var AsciiHexStream = (function AsciiHexStreamClosure() {
+ function AsciiHexStream(str, maybeLength) {
+ this.str = str;
+ this.dict = str.dict;
+
+ this.firstDigit = -1;
+
+ // Most streams increase in size when decoded, but AsciiHex streams shrink
+ // by 50%.
+ if (maybeLength) {
+ maybeLength = 0.5 * maybeLength;
+ }
+ DecodeStream.call(this, maybeLength);
+ }
+
+ AsciiHexStream.prototype = Object.create(DecodeStream.prototype);
+
+ AsciiHexStream.prototype.readBlock = function AsciiHexStream_readBlock() {
+ var UPSTREAM_BLOCK_SIZE = 8000;
+ var bytes = this.str.getBytes(UPSTREAM_BLOCK_SIZE);
+ if (!bytes.length) {
+ this.eof = true;
+ return;
+ }
+
+ var maxDecodeLength = (bytes.length + 1) >> 1;
+ var buffer = this.ensureBuffer(this.bufferLength + maxDecodeLength);
+ var bufferLength = this.bufferLength;
+
+ var firstDigit = this.firstDigit;
+ for (var i = 0, ii = bytes.length; i < ii; i++) {
+ var ch = bytes[i], digit;
+ if (ch >= 0x30 && ch <= 0x39) { // '0'-'9'
+ digit = ch & 0x0F;
+ } else if ((ch >= 0x41 && ch <= 0x46) || (ch >= 0x61 && ch <= 0x66)) {
+ // 'A'-'Z', 'a'-'z'
+ digit = (ch & 0x0F) + 9;
+ } else if (ch === 0x3E) { // '>'
+ this.eof = true;
+ break;
+ } else { // probably whitespace
+ continue; // ignoring
+ }
+ if (firstDigit < 0) {
+ firstDigit = digit;
+ } else {
+ buffer[bufferLength++] = (firstDigit << 4) | digit;
+ firstDigit = -1;
+ }
+ }
+ if (firstDigit >= 0 && this.eof) {
+ // incomplete byte
+ buffer[bufferLength++] = (firstDigit << 4);
+ firstDigit = -1;
+ }
+ this.firstDigit = firstDigit;
+ this.bufferLength = bufferLength;
+ };
+
+ return AsciiHexStream;
+})();
+
+var RunLengthStream = (function RunLengthStreamClosure() {
+ function RunLengthStream(str, maybeLength) {
+ this.str = str;
+ this.dict = str.dict;
+
+ DecodeStream.call(this, maybeLength);
+ }
+
+ RunLengthStream.prototype = Object.create(DecodeStream.prototype);
+
+ RunLengthStream.prototype.readBlock = function RunLengthStream_readBlock() {
+ // The repeatHeader has following format. The first byte defines type of run
+ // and amount of bytes to repeat/copy: n = 0 through 127 - copy next n bytes
+ // (in addition to the second byte from the header), n = 129 through 255 -
+ // duplicate the second byte from the header (257 - n) times, n = 128 - end.
+ var repeatHeader = this.str.getBytes(2);
+ if (!repeatHeader || repeatHeader.length < 2 || repeatHeader[0] === 128) {
+ this.eof = true;
+ return;
+ }
+
+ var buffer;
+ var bufferLength = this.bufferLength;
+ var n = repeatHeader[0];
+ if (n < 128) {
+ // copy n bytes
+ buffer = this.ensureBuffer(bufferLength + n + 1);
+ buffer[bufferLength++] = repeatHeader[1];
+ if (n > 0) {
+ var source = this.str.getBytes(n);
+ buffer.set(source, bufferLength);
+ bufferLength += n;
+ }
+ } else {
+ n = 257 - n;
+ var b = repeatHeader[1];
+ buffer = this.ensureBuffer(bufferLength + n + 1);
+ for (var i = 0; i < n; i++) {
+ buffer[bufferLength++] = b;
+ }
+ }
+ this.bufferLength = bufferLength;
+ };
+
+ return RunLengthStream;
+})();
+
+var CCITTFaxStream = (function CCITTFaxStreamClosure() {
+
+ var ccittEOL = -2;
+ var twoDimPass = 0;
+ var twoDimHoriz = 1;
+ var twoDimVert0 = 2;
+ var twoDimVertR1 = 3;
+ var twoDimVertL1 = 4;
+ var twoDimVertR2 = 5;
+ var twoDimVertL2 = 6;
+ var twoDimVertR3 = 7;
+ var twoDimVertL3 = 8;
+
+ var twoDimTable = [
+ [-1, -1], [-1, -1], // 000000x
+ [7, twoDimVertL3], // 0000010
+ [7, twoDimVertR3], // 0000011
+ [6, twoDimVertL2], [6, twoDimVertL2], // 000010x
+ [6, twoDimVertR2], [6, twoDimVertR2], // 000011x
+ [4, twoDimPass], [4, twoDimPass], // 0001xxx
+ [4, twoDimPass], [4, twoDimPass],
+ [4, twoDimPass], [4, twoDimPass],
+ [4, twoDimPass], [4, twoDimPass],
+ [3, twoDimHoriz], [3, twoDimHoriz], // 001xxxx
+ [3, twoDimHoriz], [3, twoDimHoriz],
+ [3, twoDimHoriz], [3, twoDimHoriz],
+ [3, twoDimHoriz], [3, twoDimHoriz],
+ [3, twoDimHoriz], [3, twoDimHoriz],
+ [3, twoDimHoriz], [3, twoDimHoriz],
+ [3, twoDimHoriz], [3, twoDimHoriz],
+ [3, twoDimHoriz], [3, twoDimHoriz],
+ [3, twoDimVertL1], [3, twoDimVertL1], // 010xxxx
+ [3, twoDimVertL1], [3, twoDimVertL1],
+ [3, twoDimVertL1], [3, twoDimVertL1],
+ [3, twoDimVertL1], [3, twoDimVertL1],
+ [3, twoDimVertL1], [3, twoDimVertL1],
+ [3, twoDimVertL1], [3, twoDimVertL1],
+ [3, twoDimVertL1], [3, twoDimVertL1],
+ [3, twoDimVertL1], [3, twoDimVertL1],
+ [3, twoDimVertR1], [3, twoDimVertR1], // 011xxxx
+ [3, twoDimVertR1], [3, twoDimVertR1],
+ [3, twoDimVertR1], [3, twoDimVertR1],
+ [3, twoDimVertR1], [3, twoDimVertR1],
+ [3, twoDimVertR1], [3, twoDimVertR1],
+ [3, twoDimVertR1], [3, twoDimVertR1],
+ [3, twoDimVertR1], [3, twoDimVertR1],
+ [3, twoDimVertR1], [3, twoDimVertR1],
+ [1, twoDimVert0], [1, twoDimVert0], // 1xxxxxx
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0],
+ [1, twoDimVert0], [1, twoDimVert0]
+ ];
+
+ var whiteTable1 = [
+ [-1, -1], // 00000
+ [12, ccittEOL], // 00001
+ [-1, -1], [-1, -1], // 0001x
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 001xx
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 010xx
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 011xx
+ [11, 1792], [11, 1792], // 1000x
+ [12, 1984], // 10010
+ [12, 2048], // 10011
+ [12, 2112], // 10100
+ [12, 2176], // 10101
+ [12, 2240], // 10110
+ [12, 2304], // 10111
+ [11, 1856], [11, 1856], // 1100x
+ [11, 1920], [11, 1920], // 1101x
+ [12, 2368], // 11100
+ [12, 2432], // 11101
+ [12, 2496], // 11110
+ [12, 2560] // 11111
+ ];
+
+ var whiteTable2 = [
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 0000000xx
+ [8, 29], [8, 29], // 00000010x
+ [8, 30], [8, 30], // 00000011x
+ [8, 45], [8, 45], // 00000100x
+ [8, 46], [8, 46], // 00000101x
+ [7, 22], [7, 22], [7, 22], [7, 22], // 0000011xx
+ [7, 23], [7, 23], [7, 23], [7, 23], // 0000100xx
+ [8, 47], [8, 47], // 00001010x
+ [8, 48], [8, 48], // 00001011x
+ [6, 13], [6, 13], [6, 13], [6, 13], // 000011xxx
+ [6, 13], [6, 13], [6, 13], [6, 13],
+ [7, 20], [7, 20], [7, 20], [7, 20], // 0001000xx
+ [8, 33], [8, 33], // 00010010x
+ [8, 34], [8, 34], // 00010011x
+ [8, 35], [8, 35], // 00010100x
+ [8, 36], [8, 36], // 00010101x
+ [8, 37], [8, 37], // 00010110x
+ [8, 38], [8, 38], // 00010111x
+ [7, 19], [7, 19], [7, 19], [7, 19], // 0001100xx
+ [8, 31], [8, 31], // 00011010x
+ [8, 32], [8, 32], // 00011011x
+ [6, 1], [6, 1], [6, 1], [6, 1], // 000111xxx
+ [6, 1], [6, 1], [6, 1], [6, 1],
+ [6, 12], [6, 12], [6, 12], [6, 12], // 001000xxx
+ [6, 12], [6, 12], [6, 12], [6, 12],
+ [8, 53], [8, 53], // 00100100x
+ [8, 54], [8, 54], // 00100101x
+ [7, 26], [7, 26], [7, 26], [7, 26], // 0010011xx
+ [8, 39], [8, 39], // 00101000x
+ [8, 40], [8, 40], // 00101001x
+ [8, 41], [8, 41], // 00101010x
+ [8, 42], [8, 42], // 00101011x
+ [8, 43], [8, 43], // 00101100x
+ [8, 44], [8, 44], // 00101101x
+ [7, 21], [7, 21], [7, 21], [7, 21], // 0010111xx
+ [7, 28], [7, 28], [7, 28], [7, 28], // 0011000xx
+ [8, 61], [8, 61], // 00110010x
+ [8, 62], [8, 62], // 00110011x
+ [8, 63], [8, 63], // 00110100x
+ [8, 0], [8, 0], // 00110101x
+ [8, 320], [8, 320], // 00110110x
+ [8, 384], [8, 384], // 00110111x
+ [5, 10], [5, 10], [5, 10], [5, 10], // 00111xxxx
+ [5, 10], [5, 10], [5, 10], [5, 10],
+ [5, 10], [5, 10], [5, 10], [5, 10],
+ [5, 10], [5, 10], [5, 10], [5, 10],
+ [5, 11], [5, 11], [5, 11], [5, 11], // 01000xxxx
+ [5, 11], [5, 11], [5, 11], [5, 11],
+ [5, 11], [5, 11], [5, 11], [5, 11],
+ [5, 11], [5, 11], [5, 11], [5, 11],
+ [7, 27], [7, 27], [7, 27], [7, 27], // 0100100xx
+ [8, 59], [8, 59], // 01001010x
+ [8, 60], [8, 60], // 01001011x
+ [9, 1472], // 010011000
+ [9, 1536], // 010011001
+ [9, 1600], // 010011010
+ [9, 1728], // 010011011
+ [7, 18], [7, 18], [7, 18], [7, 18], // 0100111xx
+ [7, 24], [7, 24], [7, 24], [7, 24], // 0101000xx
+ [8, 49], [8, 49], // 01010010x
+ [8, 50], [8, 50], // 01010011x
+ [8, 51], [8, 51], // 01010100x
+ [8, 52], [8, 52], // 01010101x
+ [7, 25], [7, 25], [7, 25], [7, 25], // 0101011xx
+ [8, 55], [8, 55], // 01011000x
+ [8, 56], [8, 56], // 01011001x
+ [8, 57], [8, 57], // 01011010x
+ [8, 58], [8, 58], // 01011011x
+ [6, 192], [6, 192], [6, 192], [6, 192], // 010111xxx
+ [6, 192], [6, 192], [6, 192], [6, 192],
+ [6, 1664], [6, 1664], [6, 1664], [6, 1664], // 011000xxx
+ [6, 1664], [6, 1664], [6, 1664], [6, 1664],
+ [8, 448], [8, 448], // 01100100x
+ [8, 512], [8, 512], // 01100101x
+ [9, 704], // 011001100
+ [9, 768], // 011001101
+ [8, 640], [8, 640], // 01100111x
+ [8, 576], [8, 576], // 01101000x
+ [9, 832], // 011010010
+ [9, 896], // 011010011
+ [9, 960], // 011010100
+ [9, 1024], // 011010101
+ [9, 1088], // 011010110
+ [9, 1152], // 011010111
+ [9, 1216], // 011011000
+ [9, 1280], // 011011001
+ [9, 1344], // 011011010
+ [9, 1408], // 011011011
+ [7, 256], [7, 256], [7, 256], [7, 256], // 0110111xx
+ [4, 2], [4, 2], [4, 2], [4, 2], // 0111xxxxx
+ [4, 2], [4, 2], [4, 2], [4, 2],
+ [4, 2], [4, 2], [4, 2], [4, 2],
+ [4, 2], [4, 2], [4, 2], [4, 2],
+ [4, 2], [4, 2], [4, 2], [4, 2],
+ [4, 2], [4, 2], [4, 2], [4, 2],
+ [4, 2], [4, 2], [4, 2], [4, 2],
+ [4, 2], [4, 2], [4, 2], [4, 2],
+ [4, 3], [4, 3], [4, 3], [4, 3], // 1000xxxxx
+ [4, 3], [4, 3], [4, 3], [4, 3],
+ [4, 3], [4, 3], [4, 3], [4, 3],
+ [4, 3], [4, 3], [4, 3], [4, 3],
+ [4, 3], [4, 3], [4, 3], [4, 3],
+ [4, 3], [4, 3], [4, 3], [4, 3],
+ [4, 3], [4, 3], [4, 3], [4, 3],
+ [4, 3], [4, 3], [4, 3], [4, 3],
+ [5, 128], [5, 128], [5, 128], [5, 128], // 10010xxxx
+ [5, 128], [5, 128], [5, 128], [5, 128],
+ [5, 128], [5, 128], [5, 128], [5, 128],
+ [5, 128], [5, 128], [5, 128], [5, 128],
+ [5, 8], [5, 8], [5, 8], [5, 8], // 10011xxxx
+ [5, 8], [5, 8], [5, 8], [5, 8],
+ [5, 8], [5, 8], [5, 8], [5, 8],
+ [5, 8], [5, 8], [5, 8], [5, 8],
+ [5, 9], [5, 9], [5, 9], [5, 9], // 10100xxxx
+ [5, 9], [5, 9], [5, 9], [5, 9],
+ [5, 9], [5, 9], [5, 9], [5, 9],
+ [5, 9], [5, 9], [5, 9], [5, 9],
+ [6, 16], [6, 16], [6, 16], [6, 16], // 101010xxx
+ [6, 16], [6, 16], [6, 16], [6, 16],
+ [6, 17], [6, 17], [6, 17], [6, 17], // 101011xxx
+ [6, 17], [6, 17], [6, 17], [6, 17],
+ [4, 4], [4, 4], [4, 4], [4, 4], // 1011xxxxx
+ [4, 4], [4, 4], [4, 4], [4, 4],
+ [4, 4], [4, 4], [4, 4], [4, 4],
+ [4, 4], [4, 4], [4, 4], [4, 4],
+ [4, 4], [4, 4], [4, 4], [4, 4],
+ [4, 4], [4, 4], [4, 4], [4, 4],
+ [4, 4], [4, 4], [4, 4], [4, 4],
+ [4, 4], [4, 4], [4, 4], [4, 4],
+ [4, 5], [4, 5], [4, 5], [4, 5], // 1100xxxxx
+ [4, 5], [4, 5], [4, 5], [4, 5],
+ [4, 5], [4, 5], [4, 5], [4, 5],
+ [4, 5], [4, 5], [4, 5], [4, 5],
+ [4, 5], [4, 5], [4, 5], [4, 5],
+ [4, 5], [4, 5], [4, 5], [4, 5],
+ [4, 5], [4, 5], [4, 5], [4, 5],
+ [4, 5], [4, 5], [4, 5], [4, 5],
+ [6, 14], [6, 14], [6, 14], [6, 14], // 110100xxx
+ [6, 14], [6, 14], [6, 14], [6, 14],
+ [6, 15], [6, 15], [6, 15], [6, 15], // 110101xxx
+ [6, 15], [6, 15], [6, 15], [6, 15],
+ [5, 64], [5, 64], [5, 64], [5, 64], // 11011xxxx
+ [5, 64], [5, 64], [5, 64], [5, 64],
+ [5, 64], [5, 64], [5, 64], [5, 64],
+ [5, 64], [5, 64], [5, 64], [5, 64],
+ [4, 6], [4, 6], [4, 6], [4, 6], // 1110xxxxx
+ [4, 6], [4, 6], [4, 6], [4, 6],
+ [4, 6], [4, 6], [4, 6], [4, 6],
+ [4, 6], [4, 6], [4, 6], [4, 6],
+ [4, 6], [4, 6], [4, 6], [4, 6],
+ [4, 6], [4, 6], [4, 6], [4, 6],
+ [4, 6], [4, 6], [4, 6], [4, 6],
+ [4, 6], [4, 6], [4, 6], [4, 6],
+ [4, 7], [4, 7], [4, 7], [4, 7], // 1111xxxxx
+ [4, 7], [4, 7], [4, 7], [4, 7],
+ [4, 7], [4, 7], [4, 7], [4, 7],
+ [4, 7], [4, 7], [4, 7], [4, 7],
+ [4, 7], [4, 7], [4, 7], [4, 7],
+ [4, 7], [4, 7], [4, 7], [4, 7],
+ [4, 7], [4, 7], [4, 7], [4, 7],
+ [4, 7], [4, 7], [4, 7], [4, 7]
+ ];
+
+ var blackTable1 = [
+ [-1, -1], [-1, -1], // 000000000000x
+ [12, ccittEOL], [12, ccittEOL], // 000000000001x
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000001xx
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000010xx
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000011xx
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000100xx
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000101xx
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000110xx
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000111xx
+ [11, 1792], [11, 1792], [11, 1792], [11, 1792], // 00000001000xx
+ [12, 1984], [12, 1984], // 000000010010x
+ [12, 2048], [12, 2048], // 000000010011x
+ [12, 2112], [12, 2112], // 000000010100x
+ [12, 2176], [12, 2176], // 000000010101x
+ [12, 2240], [12, 2240], // 000000010110x
+ [12, 2304], [12, 2304], // 000000010111x
+ [11, 1856], [11, 1856], [11, 1856], [11, 1856], // 00000001100xx
+ [11, 1920], [11, 1920], [11, 1920], [11, 1920], // 00000001101xx
+ [12, 2368], [12, 2368], // 000000011100x
+ [12, 2432], [12, 2432], // 000000011101x
+ [12, 2496], [12, 2496], // 000000011110x
+ [12, 2560], [12, 2560], // 000000011111x
+ [10, 18], [10, 18], [10, 18], [10, 18], // 0000001000xxx
+ [10, 18], [10, 18], [10, 18], [10, 18],
+ [12, 52], [12, 52], // 000000100100x
+ [13, 640], // 0000001001010
+ [13, 704], // 0000001001011
+ [13, 768], // 0000001001100
+ [13, 832], // 0000001001101
+ [12, 55], [12, 55], // 000000100111x
+ [12, 56], [12, 56], // 000000101000x
+ [13, 1280], // 0000001010010
+ [13, 1344], // 0000001010011
+ [13, 1408], // 0000001010100
+ [13, 1472], // 0000001010101
+ [12, 59], [12, 59], // 000000101011x
+ [12, 60], [12, 60], // 000000101100x
+ [13, 1536], // 0000001011010
+ [13, 1600], // 0000001011011
+ [11, 24], [11, 24], [11, 24], [11, 24], // 00000010111xx
+ [11, 25], [11, 25], [11, 25], [11, 25], // 00000011000xx
+ [13, 1664], // 0000001100100
+ [13, 1728], // 0000001100101
+ [12, 320], [12, 320], // 000000110011x
+ [12, 384], [12, 384], // 000000110100x
+ [12, 448], [12, 448], // 000000110101x
+ [13, 512], // 0000001101100
+ [13, 576], // 0000001101101
+ [12, 53], [12, 53], // 000000110111x
+ [12, 54], [12, 54], // 000000111000x
+ [13, 896], // 0000001110010
+ [13, 960], // 0000001110011
+ [13, 1024], // 0000001110100
+ [13, 1088], // 0000001110101
+ [13, 1152], // 0000001110110
+ [13, 1216], // 0000001110111
+ [10, 64], [10, 64], [10, 64], [10, 64], // 0000001111xxx
+ [10, 64], [10, 64], [10, 64], [10, 64]
+ ];
+
+ var blackTable2 = [
+ [8, 13], [8, 13], [8, 13], [8, 13], // 00000100xxxx
+ [8, 13], [8, 13], [8, 13], [8, 13],
+ [8, 13], [8, 13], [8, 13], [8, 13],
+ [8, 13], [8, 13], [8, 13], [8, 13],
+ [11, 23], [11, 23], // 00000101000x
+ [12, 50], // 000001010010
+ [12, 51], // 000001010011
+ [12, 44], // 000001010100
+ [12, 45], // 000001010101
+ [12, 46], // 000001010110
+ [12, 47], // 000001010111
+ [12, 57], // 000001011000
+ [12, 58], // 000001011001
+ [12, 61], // 000001011010
+ [12, 256], // 000001011011
+ [10, 16], [10, 16], [10, 16], [10, 16], // 0000010111xx
+ [10, 17], [10, 17], [10, 17], [10, 17], // 0000011000xx
+ [12, 48], // 000001100100
+ [12, 49], // 000001100101
+ [12, 62], // 000001100110
+ [12, 63], // 000001100111
+ [12, 30], // 000001101000
+ [12, 31], // 000001101001
+ [12, 32], // 000001101010
+ [12, 33], // 000001101011
+ [12, 40], // 000001101100
+ [12, 41], // 000001101101
+ [11, 22], [11, 22], // 00000110111x
+ [8, 14], [8, 14], [8, 14], [8, 14], // 00000111xxxx
+ [8, 14], [8, 14], [8, 14], [8, 14],
+ [8, 14], [8, 14], [8, 14], [8, 14],
+ [8, 14], [8, 14], [8, 14], [8, 14],
+ [7, 10], [7, 10], [7, 10], [7, 10], // 0000100xxxxx
+ [7, 10], [7, 10], [7, 10], [7, 10],
+ [7, 10], [7, 10], [7, 10], [7, 10],
+ [7, 10], [7, 10], [7, 10], [7, 10],
+ [7, 10], [7, 10], [7, 10], [7, 10],
+ [7, 10], [7, 10], [7, 10], [7, 10],
+ [7, 10], [7, 10], [7, 10], [7, 10],
+ [7, 10], [7, 10], [7, 10], [7, 10],
+ [7, 11], [7, 11], [7, 11], [7, 11], // 0000101xxxxx
+ [7, 11], [7, 11], [7, 11], [7, 11],
+ [7, 11], [7, 11], [7, 11], [7, 11],
+ [7, 11], [7, 11], [7, 11], [7, 11],
+ [7, 11], [7, 11], [7, 11], [7, 11],
+ [7, 11], [7, 11], [7, 11], [7, 11],
+ [7, 11], [7, 11], [7, 11], [7, 11],
+ [7, 11], [7, 11], [7, 11], [7, 11],
+ [9, 15], [9, 15], [9, 15], [9, 15], // 000011000xxx
+ [9, 15], [9, 15], [9, 15], [9, 15],
+ [12, 128], // 000011001000
+ [12, 192], // 000011001001
+ [12, 26], // 000011001010
+ [12, 27], // 000011001011
+ [12, 28], // 000011001100
+ [12, 29], // 000011001101
+ [11, 19], [11, 19], // 00001100111x
+ [11, 20], [11, 20], // 00001101000x
+ [12, 34], // 000011010010
+ [12, 35], // 000011010011
+ [12, 36], // 000011010100
+ [12, 37], // 000011010101
+ [12, 38], // 000011010110
+ [12, 39], // 000011010111
+ [11, 21], [11, 21], // 00001101100x
+ [12, 42], // 000011011010
+ [12, 43], // 000011011011
+ [10, 0], [10, 0], [10, 0], [10, 0], // 0000110111xx
+ [7, 12], [7, 12], [7, 12], [7, 12], // 0000111xxxxx
+ [7, 12], [7, 12], [7, 12], [7, 12],
+ [7, 12], [7, 12], [7, 12], [7, 12],
+ [7, 12], [7, 12], [7, 12], [7, 12],
+ [7, 12], [7, 12], [7, 12], [7, 12],
+ [7, 12], [7, 12], [7, 12], [7, 12],
+ [7, 12], [7, 12], [7, 12], [7, 12],
+ [7, 12], [7, 12], [7, 12], [7, 12]
+ ];
+
+ var blackTable3 = [
+ [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 0000xx
+ [6, 9], // 000100
+ [6, 8], // 000101
+ [5, 7], [5, 7], // 00011x
+ [4, 6], [4, 6], [4, 6], [4, 6], // 0010xx
+ [4, 5], [4, 5], [4, 5], [4, 5], // 0011xx
+ [3, 1], [3, 1], [3, 1], [3, 1], // 010xxx
+ [3, 1], [3, 1], [3, 1], [3, 1],
+ [3, 4], [3, 4], [3, 4], [3, 4], // 011xxx
+ [3, 4], [3, 4], [3, 4], [3, 4],
+ [2, 3], [2, 3], [2, 3], [2, 3], // 10xxxx
+ [2, 3], [2, 3], [2, 3], [2, 3],
+ [2, 3], [2, 3], [2, 3], [2, 3],
+ [2, 3], [2, 3], [2, 3], [2, 3],
+ [2, 2], [2, 2], [2, 2], [2, 2], // 11xxxx
+ [2, 2], [2, 2], [2, 2], [2, 2],
+ [2, 2], [2, 2], [2, 2], [2, 2],
+ [2, 2], [2, 2], [2, 2], [2, 2]
+ ];
+
+ function CCITTFaxStream(str, maybeLength, params) {
+ this.str = str;
+ this.dict = str.dict;
+
+ params = params || Dict.empty;
+
+ this.encoding = params.get('K') || 0;
+ this.eoline = params.get('EndOfLine') || false;
+ this.byteAlign = params.get('EncodedByteAlign') || false;
+ this.columns = params.get('Columns') || 1728;
+ this.rows = params.get('Rows') || 0;
+ var eoblock = params.get('EndOfBlock');
+ if (eoblock === null || eoblock === undefined) {
+ eoblock = true;
+ }
+ this.eoblock = eoblock;
+ this.black = params.get('BlackIs1') || false;
+
+ this.codingLine = new Uint32Array(this.columns + 1);
+ this.refLine = new Uint32Array(this.columns + 2);
+
+ this.codingLine[0] = this.columns;
+ this.codingPos = 0;
+
+ this.row = 0;
+ this.nextLine2D = this.encoding < 0;
+ this.inputBits = 0;
+ this.inputBuf = 0;
+ this.outputBits = 0;
+
+ var code1;
+ while ((code1 = this.lookBits(12)) === 0) {
+ this.eatBits(1);
+ }
+ if (code1 === 1) {
+ this.eatBits(12);
+ }
+ if (this.encoding > 0) {
+ this.nextLine2D = !this.lookBits(1);
+ this.eatBits(1);
+ }
+
+ DecodeStream.call(this, maybeLength);
+ }
+
+ CCITTFaxStream.prototype = Object.create(DecodeStream.prototype);
+
+ CCITTFaxStream.prototype.readBlock = function CCITTFaxStream_readBlock() {
+ while (!this.eof) {
+ var c = this.lookChar();
+ this.ensureBuffer(this.bufferLength + 1);
+ this.buffer[this.bufferLength++] = c;
+ }
+ };
+
+ CCITTFaxStream.prototype.addPixels =
+ function ccittFaxStreamAddPixels(a1, blackPixels) {
+ var codingLine = this.codingLine;
+ var codingPos = this.codingPos;
+
+ if (a1 > codingLine[codingPos]) {
+ if (a1 > this.columns) {
+ info('row is wrong length');
+ this.err = true;
+ a1 = this.columns;
+ }
+ if ((codingPos & 1) ^ blackPixels) {
+ ++codingPos;
+ }
+
+ codingLine[codingPos] = a1;
+ }
+ this.codingPos = codingPos;
+ };
+
+ CCITTFaxStream.prototype.addPixelsNeg =
+ function ccittFaxStreamAddPixelsNeg(a1, blackPixels) {
+ var codingLine = this.codingLine;
+ var codingPos = this.codingPos;
+
+ if (a1 > codingLine[codingPos]) {
+ if (a1 > this.columns) {
+ info('row is wrong length');
+ this.err = true;
+ a1 = this.columns;
+ }
+ if ((codingPos & 1) ^ blackPixels) {
+ ++codingPos;
+ }
+
+ codingLine[codingPos] = a1;
+ } else if (a1 < codingLine[codingPos]) {
+ if (a1 < 0) {
+ info('invalid code');
+ this.err = true;
+ a1 = 0;
+ }
+ while (codingPos > 0 && a1 < codingLine[codingPos - 1]) {
+ --codingPos;
+ }
+ codingLine[codingPos] = a1;
+ }
+
+ this.codingPos = codingPos;
+ };
+
+ CCITTFaxStream.prototype.lookChar = function CCITTFaxStream_lookChar() {
+ var refLine = this.refLine;
+ var codingLine = this.codingLine;
+ var columns = this.columns;
+
+ var refPos, blackPixels, bits, i;
+
+ if (this.outputBits === 0) {
+ if (this.eof) {
+ return null;
+ }
+ this.err = false;
+
+ var code1, code2, code3;
+ if (this.nextLine2D) {
+ for (i = 0; codingLine[i] < columns; ++i) {
+ refLine[i] = codingLine[i];
+ }
+ refLine[i++] = columns;
+ refLine[i] = columns;
+ codingLine[0] = 0;
+ this.codingPos = 0;
+ refPos = 0;
+ blackPixels = 0;
+
+ while (codingLine[this.codingPos] < columns) {
+ code1 = this.getTwoDimCode();
+ switch (code1) {
+ case twoDimPass:
+ this.addPixels(refLine[refPos + 1], blackPixels);
+ if (refLine[refPos + 1] < columns) {
+ refPos += 2;
+ }
+ break;
+ case twoDimHoriz:
+ code1 = code2 = 0;
+ if (blackPixels) {
+ do {
+ code1 += (code3 = this.getBlackCode());
+ } while (code3 >= 64);
+ do {
+ code2 += (code3 = this.getWhiteCode());
+ } while (code3 >= 64);
+ } else {
+ do {
+ code1 += (code3 = this.getWhiteCode());
+ } while (code3 >= 64);
+ do {
+ code2 += (code3 = this.getBlackCode());
+ } while (code3 >= 64);
+ }
+ this.addPixels(codingLine[this.codingPos] +
+ code1, blackPixels);
+ if (codingLine[this.codingPos] < columns) {
+ this.addPixels(codingLine[this.codingPos] + code2,
+ blackPixels ^ 1);
+ }
+ while (refLine[refPos] <= codingLine[this.codingPos] &&
+ refLine[refPos] < columns) {
+ refPos += 2;
+ }
+ break;
+ case twoDimVertR3:
+ this.addPixels(refLine[refPos] + 3, blackPixels);
+ blackPixels ^= 1;
+ if (codingLine[this.codingPos] < columns) {
+ ++refPos;
+ while (refLine[refPos] <= codingLine[this.codingPos] &&
+ refLine[refPos] < columns) {
+ refPos += 2;
+ }
+ }
+ break;
+ case twoDimVertR2:
+ this.addPixels(refLine[refPos] + 2, blackPixels);
+ blackPixels ^= 1;
+ if (codingLine[this.codingPos] < columns) {
+ ++refPos;
+ while (refLine[refPos] <= codingLine[this.codingPos] &&
+ refLine[refPos] < columns) {
+ refPos += 2;
+ }
+ }
+ break;
+ case twoDimVertR1:
+ this.addPixels(refLine[refPos] + 1, blackPixels);
+ blackPixels ^= 1;
+ if (codingLine[this.codingPos] < columns) {
+ ++refPos;
+ while (refLine[refPos] <= codingLine[this.codingPos] &&
+ refLine[refPos] < columns) {
+ refPos += 2;
+ }
+ }
+ break;
+ case twoDimVert0:
+ this.addPixels(refLine[refPos], blackPixels);
+ blackPixels ^= 1;
+ if (codingLine[this.codingPos] < columns) {
+ ++refPos;
+ while (refLine[refPos] <= codingLine[this.codingPos] &&
+ refLine[refPos] < columns) {
+ refPos += 2;
+ }
+ }
+ break;
+ case twoDimVertL3:
+ this.addPixelsNeg(refLine[refPos] - 3, blackPixels);
+ blackPixels ^= 1;
+ if (codingLine[this.codingPos] < columns) {
+ if (refPos > 0) {
+ --refPos;
+ } else {
+ ++refPos;
+ }
+ while (refLine[refPos] <= codingLine[this.codingPos] &&
+ refLine[refPos] < columns) {
+ refPos += 2;
+ }
+ }
+ break;
+ case twoDimVertL2:
+ this.addPixelsNeg(refLine[refPos] - 2, blackPixels);
+ blackPixels ^= 1;
+ if (codingLine[this.codingPos] < columns) {
+ if (refPos > 0) {
+ --refPos;
+ } else {
+ ++refPos;
+ }
+ while (refLine[refPos] <= codingLine[this.codingPos] &&
+ refLine[refPos] < columns) {
+ refPos += 2;
+ }
+ }
+ break;
+ case twoDimVertL1:
+ this.addPixelsNeg(refLine[refPos] - 1, blackPixels);
+ blackPixels ^= 1;
+ if (codingLine[this.codingPos] < columns) {
+ if (refPos > 0) {
+ --refPos;
+ } else {
+ ++refPos;
+ }
+ while (refLine[refPos] <= codingLine[this.codingPos] &&
+ refLine[refPos] < columns) {
+ refPos += 2;
+ }
+ }
+ break;
+ case EOF:
+ this.addPixels(columns, 0);
+ this.eof = true;
+ break;
+ default:
+ info('bad 2d code');
+ this.addPixels(columns, 0);
+ this.err = true;
+ }
+ }
+ } else {
+ codingLine[0] = 0;
+ this.codingPos = 0;
+ blackPixels = 0;
+ while (codingLine[this.codingPos] < columns) {
+ code1 = 0;
+ if (blackPixels) {
+ do {
+ code1 += (code3 = this.getBlackCode());
+ } while (code3 >= 64);
+ } else {
+ do {
+ code1 += (code3 = this.getWhiteCode());
+ } while (code3 >= 64);
+ }
+ this.addPixels(codingLine[this.codingPos] + code1, blackPixels);
+ blackPixels ^= 1;
+ }
+ }
+
+ var gotEOL = false;
+
+ if (this.byteAlign) {
+ this.inputBits &= ~7;
+ }
+
+ if (!this.eoblock && this.row === this.rows - 1) {
+ this.eof = true;
+ } else {
+ code1 = this.lookBits(12);
+ if (this.eoline) {
+ while (code1 !== EOF && code1 !== 1) {
+ this.eatBits(1);
+ code1 = this.lookBits(12);
+ }
+ } else {
+ while (code1 === 0) {
+ this.eatBits(1);
+ code1 = this.lookBits(12);
+ }
+ }
+ if (code1 === 1) {
+ this.eatBits(12);
+ gotEOL = true;
+ } else if (code1 === EOF) {
+ this.eof = true;
+ }
+ }
+
+ if (!this.eof && this.encoding > 0) {
+ this.nextLine2D = !this.lookBits(1);
+ this.eatBits(1);
+ }
+
+ if (this.eoblock && gotEOL && this.byteAlign) {
+ code1 = this.lookBits(12);
+ if (code1 === 1) {
+ this.eatBits(12);
+ if (this.encoding > 0) {
+ this.lookBits(1);
+ this.eatBits(1);
+ }
+ if (this.encoding >= 0) {
+ for (i = 0; i < 4; ++i) {
+ code1 = this.lookBits(12);
+ if (code1 !== 1) {
+ info('bad rtc code: ' + code1);
+ }
+ this.eatBits(12);
+ if (this.encoding > 0) {
+ this.lookBits(1);
+ this.eatBits(1);
+ }
+ }
+ }
+ this.eof = true;
+ }
+ } else if (this.err && this.eoline) {
+ while (true) {
+ code1 = this.lookBits(13);
+ if (code1 === EOF) {
+ this.eof = true;
+ return null;
+ }
+ if ((code1 >> 1) === 1) {
+ break;
+ }
+ this.eatBits(1);
+ }
+ this.eatBits(12);
+ if (this.encoding > 0) {
+ this.eatBits(1);
+ this.nextLine2D = !(code1 & 1);
+ }
+ }
+
+ if (codingLine[0] > 0) {
+ this.outputBits = codingLine[this.codingPos = 0];
+ } else {
+ this.outputBits = codingLine[this.codingPos = 1];
+ }
+ this.row++;
+ }
+
+ var c;
+ if (this.outputBits >= 8) {
+ c = (this.codingPos & 1) ? 0 : 0xFF;
+ this.outputBits -= 8;
+ if (this.outputBits === 0 && codingLine[this.codingPos] < columns) {
+ this.codingPos++;
+ this.outputBits = (codingLine[this.codingPos] -
+ codingLine[this.codingPos - 1]);
+ }
+ } else {
+ bits = 8;
+ c = 0;
+ do {
+ if (this.outputBits > bits) {
+ c <<= bits;
+ if (!(this.codingPos & 1)) {
+ c |= 0xFF >> (8 - bits);
+ }
+ this.outputBits -= bits;
+ bits = 0;
+ } else {
+ c <<= this.outputBits;
+ if (!(this.codingPos & 1)) {
+ c |= 0xFF >> (8 - this.outputBits);
+ }
+ bits -= this.outputBits;
+ this.outputBits = 0;
+ if (codingLine[this.codingPos] < columns) {
+ this.codingPos++;
+ this.outputBits = (codingLine[this.codingPos] -
+ codingLine[this.codingPos - 1]);
+ } else if (bits > 0) {
+ c <<= bits;
+ bits = 0;
+ }
+ }
+ } while (bits);
+ }
+ if (this.black) {
+ c ^= 0xFF;
+ }
+ return c;
+ };
+
+ // This functions returns the code found from the table.
+ // The start and end parameters set the boundaries for searching the table.
+ // The limit parameter is optional. Function returns an array with three
+ // values. The first array element indicates whether a valid code is being
+ // returned. The second array element is the actual code. The third array
+ // element indicates whether EOF was reached.
+ CCITTFaxStream.prototype.findTableCode =
+ function ccittFaxStreamFindTableCode(start, end, table, limit) {
+
+ var limitValue = limit || 0;
+ for (var i = start; i <= end; ++i) {
+ var code = this.lookBits(i);
+ if (code === EOF) {
+ return [true, 1, false];
+ }
+ if (i < end) {
+ code <<= end - i;
+ }
+ if (!limitValue || code >= limitValue) {
+ var p = table[code - limitValue];
+ if (p[0] === i) {
+ this.eatBits(i);
+ return [true, p[1], true];
+ }
+ }
+ }
+ return [false, 0, false];
+ };
+
+ CCITTFaxStream.prototype.getTwoDimCode =
+ function ccittFaxStreamGetTwoDimCode() {
+
+ var code = 0;
+ var p;
+ if (this.eoblock) {
+ code = this.lookBits(7);
+ p = twoDimTable[code];
+ if (p && p[0] > 0) {
+ this.eatBits(p[0]);
+ return p[1];
+ }
+ } else {
+ var result = this.findTableCode(1, 7, twoDimTable);
+ if (result[0] && result[2]) {
+ return result[1];
+ }
+ }
+ info('Bad two dim code');
+ return EOF;
+ };
+
+ CCITTFaxStream.prototype.getWhiteCode =
+ function ccittFaxStreamGetWhiteCode() {
+
+ var code = 0;
+ var p;
+ if (this.eoblock) {
+ code = this.lookBits(12);
+ if (code === EOF) {
+ return 1;
+ }
+
+ if ((code >> 5) === 0) {
+ p = whiteTable1[code];
+ } else {
+ p = whiteTable2[code >> 3];
+ }
+
+ if (p[0] > 0) {
+ this.eatBits(p[0]);
+ return p[1];
+ }
+ } else {
+ var result = this.findTableCode(1, 9, whiteTable2);
+ if (result[0]) {
+ return result[1];
+ }
+
+ result = this.findTableCode(11, 12, whiteTable1);
+ if (result[0]) {
+ return result[1];
+ }
+ }
+ info('bad white code');
+ this.eatBits(1);
+ return 1;
+ };
+
+ CCITTFaxStream.prototype.getBlackCode =
+ function ccittFaxStreamGetBlackCode() {
+
+ var code, p;
+ if (this.eoblock) {
+ code = this.lookBits(13);
+ if (code === EOF) {
+ return 1;
+ }
+ if ((code >> 7) === 0) {
+ p = blackTable1[code];
+ } else if ((code >> 9) === 0 && (code >> 7) !== 0) {
+ p = blackTable2[(code >> 1) - 64];
+ } else {
+ p = blackTable3[code >> 7];
+ }
+
+ if (p[0] > 0) {
+ this.eatBits(p[0]);
+ return p[1];
+ }
+ } else {
+ var result = this.findTableCode(2, 6, blackTable3);
+ if (result[0]) {
+ return result[1];
+ }
+
+ result = this.findTableCode(7, 12, blackTable2, 64);
+ if (result[0]) {
+ return result[1];
+ }
+
+ result = this.findTableCode(10, 13, blackTable1);
+ if (result[0]) {
+ return result[1];
+ }
+ }
+ info('bad black code');
+ this.eatBits(1);
+ return 1;
+ };
+
+ CCITTFaxStream.prototype.lookBits = function CCITTFaxStream_lookBits(n) {
+ var c;
+ while (this.inputBits < n) {
+ if ((c = this.str.getByte()) === -1) {
+ if (this.inputBits === 0) {
+ return EOF;
+ }
+ return ((this.inputBuf << (n - this.inputBits)) &
+ (0xFFFF >> (16 - n)));
+ }
+ this.inputBuf = (this.inputBuf << 8) + c;
+ this.inputBits += 8;
+ }
+ return (this.inputBuf >> (this.inputBits - n)) & (0xFFFF >> (16 - n));
+ };
+
+ CCITTFaxStream.prototype.eatBits = function CCITTFaxStream_eatBits(n) {
+ if ((this.inputBits -= n) < 0) {
+ this.inputBits = 0;
+ }
+ };
+
+ return CCITTFaxStream;
+})();
+
+var LZWStream = (function LZWStreamClosure() {
+ function LZWStream(str, maybeLength, earlyChange) {
+ this.str = str;
+ this.dict = str.dict;
+ this.cachedData = 0;
+ this.bitsCached = 0;
+
+ var maxLzwDictionarySize = 4096;
+ var lzwState = {
+ earlyChange: earlyChange,
+ codeLength: 9,
+ nextCode: 258,
+ dictionaryValues: new Uint8Array(maxLzwDictionarySize),
+ dictionaryLengths: new Uint16Array(maxLzwDictionarySize),
+ dictionaryPrevCodes: new Uint16Array(maxLzwDictionarySize),
+ currentSequence: new Uint8Array(maxLzwDictionarySize),
+ currentSequenceLength: 0
+ };
+ for (var i = 0; i < 256; ++i) {
+ lzwState.dictionaryValues[i] = i;
+ lzwState.dictionaryLengths[i] = 1;
+ }
+ this.lzwState = lzwState;
+
+ DecodeStream.call(this, maybeLength);
+ }
+
+ LZWStream.prototype = Object.create(DecodeStream.prototype);
+
+ LZWStream.prototype.readBits = function LZWStream_readBits(n) {
+ var bitsCached = this.bitsCached;
+ var cachedData = this.cachedData;
+ while (bitsCached < n) {
+ var c = this.str.getByte();
+ if (c === -1) {
+ this.eof = true;
+ return null;
+ }
+ cachedData = (cachedData << 8) | c;
+ bitsCached += 8;
+ }
+ this.bitsCached = (bitsCached -= n);
+ this.cachedData = cachedData;
+ this.lastCode = null;
+ return (cachedData >>> bitsCached) & ((1 << n) - 1);
+ };
+
+ LZWStream.prototype.readBlock = function LZWStream_readBlock() {
+ var blockSize = 512;
+ var estimatedDecodedSize = blockSize * 2, decodedSizeDelta = blockSize;
+ var i, j, q;
+
+ var lzwState = this.lzwState;
+ if (!lzwState) {
+ return; // eof was found
+ }
+
+ var earlyChange = lzwState.earlyChange;
+ var nextCode = lzwState.nextCode;
+ var dictionaryValues = lzwState.dictionaryValues;
+ var dictionaryLengths = lzwState.dictionaryLengths;
+ var dictionaryPrevCodes = lzwState.dictionaryPrevCodes;
+ var codeLength = lzwState.codeLength;
+ var prevCode = lzwState.prevCode;
+ var currentSequence = lzwState.currentSequence;
+ var currentSequenceLength = lzwState.currentSequenceLength;
+
+ var decodedLength = 0;
+ var currentBufferLength = this.bufferLength;
+ var buffer = this.ensureBuffer(this.bufferLength + estimatedDecodedSize);
+
+ for (i = 0; i < blockSize; i++) {
+ var code = this.readBits(codeLength);
+ var hasPrev = currentSequenceLength > 0;
+ if (code < 256) {
+ currentSequence[0] = code;
+ currentSequenceLength = 1;
+ } else if (code >= 258) {
+ if (code < nextCode) {
+ currentSequenceLength = dictionaryLengths[code];
+ for (j = currentSequenceLength - 1, q = code; j >= 0; j--) {
+ currentSequence[j] = dictionaryValues[q];
+ q = dictionaryPrevCodes[q];
+ }
+ } else {
+ currentSequence[currentSequenceLength++] = currentSequence[0];
+ }
+ } else if (code === 256) {
+ codeLength = 9;
+ nextCode = 258;
+ currentSequenceLength = 0;
+ continue;
+ } else {
+ this.eof = true;
+ delete this.lzwState;
+ break;
+ }
+
+ if (hasPrev) {
+ dictionaryPrevCodes[nextCode] = prevCode;
+ dictionaryLengths[nextCode] = dictionaryLengths[prevCode] + 1;
+ dictionaryValues[nextCode] = currentSequence[0];
+ nextCode++;
+ codeLength = (nextCode + earlyChange) & (nextCode + earlyChange - 1) ?
+ codeLength : Math.min(Math.log(nextCode + earlyChange) /
+ 0.6931471805599453 + 1, 12) | 0;
+ }
+ prevCode = code;
+
+ decodedLength += currentSequenceLength;
+ if (estimatedDecodedSize < decodedLength) {
+ do {
+ estimatedDecodedSize += decodedSizeDelta;
+ } while (estimatedDecodedSize < decodedLength);
+ buffer = this.ensureBuffer(this.bufferLength + estimatedDecodedSize);
+ }
+ for (j = 0; j < currentSequenceLength; j++) {
+ buffer[currentBufferLength++] = currentSequence[j];
+ }
+ }
+ lzwState.nextCode = nextCode;
+ lzwState.codeLength = codeLength;
+ lzwState.prevCode = prevCode;
+ lzwState.currentSequenceLength = currentSequenceLength;
+
+ this.bufferLength = currentBufferLength;
+ };
+
+ return LZWStream;
+})();
+
+var NullStream = (function NullStreamClosure() {
+ function NullStream() {
+ Stream.call(this, new Uint8Array(0));
+ }
+
+ NullStream.prototype = Stream.prototype;
+
+ return NullStream;
+})();
+
+
+var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
+ setup: function wphSetup(handler) {
+ var pdfManager;
+
+ function loadDocument(recoveryMode) {
+ var loadDocumentCapability = createPromiseCapability();
+
+ var parseSuccess = function parseSuccess() {
+ var numPagesPromise = pdfManager.ensureDoc('numPages');
+ var fingerprintPromise = pdfManager.ensureDoc('fingerprint');
+ var encryptedPromise = pdfManager.ensureXRef('encrypt');
+ Promise.all([numPagesPromise, fingerprintPromise,
+ encryptedPromise]).then(function onDocReady(results) {
+ var doc = {
+ numPages: results[0],
+ fingerprint: results[1],
+ encrypted: !!results[2],
+ };
+ loadDocumentCapability.resolve(doc);
+ },
+ parseFailure);
+ };
+
+ var parseFailure = function parseFailure(e) {
+ loadDocumentCapability.reject(e);
+ };
+
+ pdfManager.ensureDoc('checkHeader', []).then(function() {
+ pdfManager.ensureDoc('parseStartXRef', []).then(function() {
+ pdfManager.ensureDoc('parse', [recoveryMode]).then(
+ parseSuccess, parseFailure);
+ }, parseFailure);
+ }, parseFailure);
+
+ return loadDocumentCapability.promise;
+ }
+
+ function getPdfManager(data) {
+ var pdfManagerCapability = createPromiseCapability();
+
+ var source = data.source;
+ var disableRange = data.disableRange;
+ if (source.data) {
+ try {
+ pdfManager = new LocalPdfManager(source.data, source.password);
+ pdfManagerCapability.resolve();
+ } catch (ex) {
+ pdfManagerCapability.reject(ex);
+ }
+ return pdfManagerCapability.promise;
+ } else if (source.chunkedViewerLoading) {
+ try {
+ pdfManager = new NetworkPdfManager(source, handler);
+ pdfManagerCapability.resolve();
+ } catch (ex) {
+ pdfManagerCapability.reject(ex);
+ }
+ return pdfManagerCapability.promise;
+ }
+
+ var networkManager = new NetworkManager(source.url, {
+ httpHeaders: source.httpHeaders,
+ withCredentials: source.withCredentials
+ });
+ var cachedChunks = [];
+ var fullRequestXhrId = networkManager.requestFull({
+ onHeadersReceived: function onHeadersReceived() {
+ if (disableRange) {
+ return;
+ }
+
+ var fullRequestXhr = networkManager.getRequestXhr(fullRequestXhrId);
+ if (fullRequestXhr.getResponseHeader('Accept-Ranges') !== 'bytes') {
+ return;
+ }
+
+ var contentEncoding =
+ fullRequestXhr.getResponseHeader('Content-Encoding') || 'identity';
+ if (contentEncoding !== 'identity') {
+ return;
+ }
+
+ var length = fullRequestXhr.getResponseHeader('Content-Length');
+ length = parseInt(length, 10);
+ if (!isInt(length)) {
+ return;
+ }
+ source.length = length;
+ if (length <= 2 * RANGE_CHUNK_SIZE) {
+ // The file size is smaller than the size of two chunks, so it does
+ // not make any sense to abort the request and retry with a range
+ // request.
+ return;
+ }
+
+ if (networkManager.isStreamingRequest(fullRequestXhrId)) {
+ // We can continue fetching when progressive loading is enabled,
+ // and we don't need the autoFetch feature.
+ source.disableAutoFetch = true;
+ } else {
+ // NOTE: by cancelling the full request, and then issuing range
+ // requests, there will be an issue for sites where you can only
+ // request the pdf once. However, if this is the case, then the
+ // server should not be returning that it can support range
+ // requests.
+ networkManager.abortRequest(fullRequestXhrId);
+ }
+
+ try {
+ pdfManager = new NetworkPdfManager(source, handler);
+ pdfManagerCapability.resolve(pdfManager);
+ } catch (ex) {
+ pdfManagerCapability.reject(ex);
+ }
+ },
+
+ onProgressiveData: source.disableStream ? null :
+ function onProgressiveData(chunk) {
+ if (!pdfManager) {
+ cachedChunks.push(chunk);
+ return;
+ }
+ pdfManager.sendProgressiveData(chunk);
+ },
+
+ onDone: function onDone(args) {
+ if (pdfManager) {
+ return; // already processed
+ }
+
+ var pdfFile;
+ if (args === null) {
+ // TODO add some streaming manager, e.g. for unknown length files.
+ // The data was returned in the onProgressiveData, combining...
+ var pdfFileLength = 0, pos = 0;
+ cachedChunks.forEach(function (chunk) {
+ pdfFileLength += chunk.byteLength;
+ });
+ if (source.length && pdfFileLength !== source.length) {
+ warn('reported HTTP length is different from actual');
+ }
+ var pdfFileArray = new Uint8Array(pdfFileLength);
+ cachedChunks.forEach(function (chunk) {
+ pdfFileArray.set(new Uint8Array(chunk), pos);
+ pos += chunk.byteLength;
+ });
+ pdfFile = pdfFileArray.buffer;
+ } else {
+ pdfFile = args.chunk;
+ }
+
+ // the data is array, instantiating directly from it
+ try {
+ pdfManager = new LocalPdfManager(pdfFile, source.password);
+ pdfManagerCapability.resolve();
+ } catch (ex) {
+ pdfManagerCapability.reject(ex);
+ }
+ },
+
+ onError: function onError(status) {
+ var exception;
+ if (status === 404) {
+ exception = new MissingPDFException('Missing PDF "' +
+ source.url + '".');
+ handler.send('MissingPDF', exception);
+ } else {
+ exception = new UnexpectedResponseException(
+ 'Unexpected server response (' + status +
+ ') while retrieving PDF "' + source.url + '".', status);
+ handler.send('UnexpectedResponse', exception);
+ }
+ },
+
+ onProgress: function onProgress(evt) {
+ handler.send('DocProgress', {
+ loaded: evt.loaded,
+ total: evt.lengthComputable ? evt.total : source.length
+ });
+ }
+ });
+
+ return pdfManagerCapability.promise;
+ }
+
+ handler.on('test', function wphSetupTest(data) {
+ // check if Uint8Array can be sent to worker
+ if (!(data instanceof Uint8Array)) {
+ handler.send('test', false);
+ return;
+ }
+ // making sure postMessage transfers are working
+ var supportTransfers = data[0] === 255;
+ handler.postMessageTransfers = supportTransfers;
+ // check if the response property is supported by xhr
+ var xhr = new XMLHttpRequest();
+ var responseExists = 'response' in xhr;
+ // check if the property is actually implemented
+ try {
+ var dummy = xhr.responseType;
+ } catch (e) {
+ responseExists = false;
+ }
+ if (!responseExists) {
+ handler.send('test', false);
+ return;
+ }
+ handler.send('test', {
+ supportTypedArray: true,
+ supportTransfers: supportTransfers
+ });
+ });
+
+ handler.on('GetDocRequest', function wphSetupDoc(data) {
+
+ var onSuccess = function(doc) {
+ handler.send('GetDoc', { pdfInfo: doc });
+ };
+
+ var onFailure = function(e) {
+ if (e instanceof PasswordException) {
+ if (e.code === PasswordResponses.NEED_PASSWORD) {
+ handler.send('NeedPassword', e);
+ } else if (e.code === PasswordResponses.INCORRECT_PASSWORD) {
+ handler.send('IncorrectPassword', e);
+ }
+ } else if (e instanceof InvalidPDFException) {
+ handler.send('InvalidPDF', e);
+ } else if (e instanceof MissingPDFException) {
+ handler.send('MissingPDF', e);
+ } else if (e instanceof UnexpectedResponseException) {
+ handler.send('UnexpectedResponse', e);
+ } else {
+ handler.send('UnknownError',
+ new UnknownErrorException(e.message, e.toString()));
+ }
+ };
+
+ PDFJS.maxImageSize = data.maxImageSize === undefined ?
+ -1 : data.maxImageSize;
+ PDFJS.disableFontFace = data.disableFontFace;
+ PDFJS.disableCreateObjectURL = data.disableCreateObjectURL;
+ PDFJS.verbosity = data.verbosity;
+ PDFJS.cMapUrl = data.cMapUrl === undefined ?
+ null : data.cMapUrl;
+ PDFJS.cMapPacked = data.cMapPacked === true;
+
+ getPdfManager(data).then(function () {
+ handler.send('PDFManagerReady', null);
+ pdfManager.onLoadedStream().then(function(stream) {
+ handler.send('DataLoaded', { length: stream.bytes.byteLength });
+ });
+ }).then(function pdfManagerReady() {
+ loadDocument(false).then(onSuccess, function loadFailure(ex) {
+ // Try again with recoveryMode == true
+ if (!(ex instanceof XRefParseException)) {
+ if (ex instanceof PasswordException) {
+ // after password exception prepare to receive a new password
+ // to repeat loading
+ pdfManager.passwordChanged().then(pdfManagerReady);
+ }
+
+ onFailure(ex);
+ return;
+ }
+
+ pdfManager.requestLoadedStream();
+ pdfManager.onLoadedStream().then(function() {
+ loadDocument(true).then(onSuccess, onFailure);
+ });
+ }, onFailure);
+ }, onFailure);
+ });
+
+ handler.on('GetPage', function wphSetupGetPage(data) {
+ return pdfManager.getPage(data.pageIndex).then(function(page) {
+ var rotatePromise = pdfManager.ensure(page, 'rotate');
+ var refPromise = pdfManager.ensure(page, 'ref');
+ var viewPromise = pdfManager.ensure(page, 'view');
+
+ return Promise.all([rotatePromise, refPromise, viewPromise]).then(
+ function(results) {
+ return {
+ rotate: results[0],
+ ref: results[1],
+ view: results[2]
+ };
+ });
+ });
+ });
+
+ handler.on('GetPageIndex', function wphSetupGetPageIndex(data) {
+ var ref = new Ref(data.ref.num, data.ref.gen);
+ var catalog = pdfManager.pdfDocument.catalog;
+ return catalog.getPageIndex(ref);
+ });
+
+ handler.on('GetDestinations',
+ function wphSetupGetDestinations(data) {
+ return pdfManager.ensureCatalog('destinations');
+ }
+ );
+
+ handler.on('GetDestination',
+ function wphSetupGetDestination(data) {
+ return pdfManager.ensureCatalog('getDestination', [ data.id ]);
+ }
+ );
+
+ handler.on('GetAttachments',
+ function wphSetupGetAttachments(data) {
+ return pdfManager.ensureCatalog('attachments');
+ }
+ );
+
+ handler.on('GetJavaScript',
+ function wphSetupGetJavaScript(data) {
+ return pdfManager.ensureCatalog('javaScript');
+ }
+ );
+
+ handler.on('GetOutline',
+ function wphSetupGetOutline(data) {
+ return pdfManager.ensureCatalog('documentOutline');
+ }
+ );
+
+ handler.on('GetMetadata',
+ function wphSetupGetMetadata(data) {
+ return Promise.all([pdfManager.ensureDoc('documentInfo'),
+ pdfManager.ensureCatalog('metadata')]);
+ }
+ );
+
+ handler.on('GetData', function wphSetupGetData(data) {
+ pdfManager.requestLoadedStream();
+ return pdfManager.onLoadedStream().then(function(stream) {
+ return stream.bytes;
+ });
+ });
+
+ handler.on('GetStats',
+ function wphSetupGetStats(data) {
+ return pdfManager.pdfDocument.xref.stats;
+ }
+ );
+
+ handler.on('UpdatePassword', function wphSetupUpdatePassword(data) {
+ pdfManager.updatePassword(data);
+ });
+
+ handler.on('GetAnnotations', function wphSetupGetAnnotations(data) {
+ return pdfManager.getPage(data.pageIndex).then(function(page) {
+ return pdfManager.ensure(page, 'getAnnotationsData', []);
+ });
+ });
+
+ handler.on('RenderPageRequest', function wphSetupRenderPage(data) {
+ pdfManager.getPage(data.pageIndex).then(function(page) {
+
+ var pageNum = data.pageIndex + 1;
+ var start = Date.now();
+ // Pre compile the pdf page and fetch the fonts/images.
+ page.getOperatorList(handler, data.intent).then(function(operatorList) {
+
+ info('page=' + pageNum + ' - getOperatorList: time=' +
+ (Date.now() - start) + 'ms, len=' + operatorList.fnArray.length);
+
+ }, function(e) {
+
+ var minimumStackMessage =
+ 'worker.js: while trying to getPage() and getOperatorList()';
+
+ var wrappedException;
+
+ // Turn the error into an obj that can be serialized
+ if (typeof e === 'string') {
+ wrappedException = {
+ message: e,
+ stack: minimumStackMessage
+ };
+ } else if (typeof e === 'object') {
+ wrappedException = {
+ message: e.message || e.toString(),
+ stack: e.stack || minimumStackMessage
+ };
+ } else {
+ wrappedException = {
+ message: 'Unknown exception type: ' + (typeof e),
+ stack: minimumStackMessage
+ };
+ }
+
+ handler.send('PageError', {
+ pageNum: pageNum,
+ error: wrappedException,
+ intent: data.intent
+ });
+ });
+ });
+ }, this);
+
+ handler.on('GetTextContent', function wphExtractText(data) {
+ return pdfManager.getPage(data.pageIndex).then(function(page) {
+ var pageNum = data.pageIndex + 1;
+ var start = Date.now();
+ return page.extractTextContent().then(function(textContent) {
+ info('text indexing: page=' + pageNum + ' - time=' +
+ (Date.now() - start) + 'ms');
+ return textContent;
+ });
+ });
+ });
+
+ handler.on('Cleanup', function wphCleanup(data) {
+ return pdfManager.cleanup();
+ });
+
+ handler.on('Terminate', function wphTerminate(data) {
+ pdfManager.terminate();
+ });
+ }
+};
+
+var consoleTimer = {};
+
+var workerConsole = {
+ log: function log() {
+ var args = Array.prototype.slice.call(arguments);
+ globalScope.postMessage({
+ action: 'console_log',
+ data: args
+ });
+ },
+
+ error: function error() {
+ var args = Array.prototype.slice.call(arguments);
+ globalScope.postMessage({
+ action: 'console_error',
+ data: args
+ });
+ throw 'pdf.js execution error';
+ },
+
+ time: function time(name) {
+ consoleTimer[name] = Date.now();
+ },
+
+ timeEnd: function timeEnd(name) {
+ var time = consoleTimer[name];
+ if (!time) {
+ error('Unknown timer name ' + name);
+ }
+ this.log('Timer:', name, Date.now() - time);
+ }
+};
+
+
+// Worker thread?
+if (typeof window === 'undefined') {
+ if (!('console' in globalScope)) {
+ globalScope.console = workerConsole;
+ }
+
+ // Listen for unsupported features so we can pass them on to the main thread.
+ PDFJS.UnsupportedManager.listen(function (msg) {
+ globalScope.postMessage({
+ action: '_unsupported_feature',
+ data: msg
+ });
+ });
+
+ var handler = new MessageHandler('worker_processor', this);
+ WorkerMessageHandler.setup(handler);
+}
+
+
+/* This class implements the QM Coder decoding as defined in
+ * JPEG 2000 Part I Final Committee Draft Version 1.0
+ * Annex C.3 Arithmetic decoding procedure
+ * available at http://www.jpeg.org/public/fcd15444-1.pdf
+ *
+ * The arithmetic decoder is used in conjunction with context models to decode
+ * JPEG2000 and JBIG2 streams.
+ */
+var ArithmeticDecoder = (function ArithmeticDecoderClosure() {
+ // Table C-2
+ var QeTable = [
+ {qe: 0x5601, nmps: 1, nlps: 1, switchFlag: 1},
+ {qe: 0x3401, nmps: 2, nlps: 6, switchFlag: 0},
+ {qe: 0x1801, nmps: 3, nlps: 9, switchFlag: 0},
+ {qe: 0x0AC1, nmps: 4, nlps: 12, switchFlag: 0},
+ {qe: 0x0521, nmps: 5, nlps: 29, switchFlag: 0},
+ {qe: 0x0221, nmps: 38, nlps: 33, switchFlag: 0},
+ {qe: 0x5601, nmps: 7, nlps: 6, switchFlag: 1},
+ {qe: 0x5401, nmps: 8, nlps: 14, switchFlag: 0},
+ {qe: 0x4801, nmps: 9, nlps: 14, switchFlag: 0},
+ {qe: 0x3801, nmps: 10, nlps: 14, switchFlag: 0},
+ {qe: 0x3001, nmps: 11, nlps: 17, switchFlag: 0},
+ {qe: 0x2401, nmps: 12, nlps: 18, switchFlag: 0},
+ {qe: 0x1C01, nmps: 13, nlps: 20, switchFlag: 0},
+ {qe: 0x1601, nmps: 29, nlps: 21, switchFlag: 0},
+ {qe: 0x5601, nmps: 15, nlps: 14, switchFlag: 1},
+ {qe: 0x5401, nmps: 16, nlps: 14, switchFlag: 0},
+ {qe: 0x5101, nmps: 17, nlps: 15, switchFlag: 0},
+ {qe: 0x4801, nmps: 18, nlps: 16, switchFlag: 0},
+ {qe: 0x3801, nmps: 19, nlps: 17, switchFlag: 0},
+ {qe: 0x3401, nmps: 20, nlps: 18, switchFlag: 0},
+ {qe: 0x3001, nmps: 21, nlps: 19, switchFlag: 0},
+ {qe: 0x2801, nmps: 22, nlps: 19, switchFlag: 0},
+ {qe: 0x2401, nmps: 23, nlps: 20, switchFlag: 0},
+ {qe: 0x2201, nmps: 24, nlps: 21, switchFlag: 0},
+ {qe: 0x1C01, nmps: 25, nlps: 22, switchFlag: 0},
+ {qe: 0x1801, nmps: 26, nlps: 23, switchFlag: 0},
+ {qe: 0x1601, nmps: 27, nlps: 24, switchFlag: 0},
+ {qe: 0x1401, nmps: 28, nlps: 25, switchFlag: 0},
+ {qe: 0x1201, nmps: 29, nlps: 26, switchFlag: 0},
+ {qe: 0x1101, nmps: 30, nlps: 27, switchFlag: 0},
+ {qe: 0x0AC1, nmps: 31, nlps: 28, switchFlag: 0},
+ {qe: 0x09C1, nmps: 32, nlps: 29, switchFlag: 0},
+ {qe: 0x08A1, nmps: 33, nlps: 30, switchFlag: 0},
+ {qe: 0x0521, nmps: 34, nlps: 31, switchFlag: 0},
+ {qe: 0x0441, nmps: 35, nlps: 32, switchFlag: 0},
+ {qe: 0x02A1, nmps: 36, nlps: 33, switchFlag: 0},
+ {qe: 0x0221, nmps: 37, nlps: 34, switchFlag: 0},
+ {qe: 0x0141, nmps: 38, nlps: 35, switchFlag: 0},
+ {qe: 0x0111, nmps: 39, nlps: 36, switchFlag: 0},
+ {qe: 0x0085, nmps: 40, nlps: 37, switchFlag: 0},
+ {qe: 0x0049, nmps: 41, nlps: 38, switchFlag: 0},
+ {qe: 0x0025, nmps: 42, nlps: 39, switchFlag: 0},
+ {qe: 0x0015, nmps: 43, nlps: 40, switchFlag: 0},
+ {qe: 0x0009, nmps: 44, nlps: 41, switchFlag: 0},
+ {qe: 0x0005, nmps: 45, nlps: 42, switchFlag: 0},
+ {qe: 0x0001, nmps: 45, nlps: 43, switchFlag: 0},
+ {qe: 0x5601, nmps: 46, nlps: 46, switchFlag: 0}
+ ];
+
+ // C.3.5 Initialisation of the decoder (INITDEC)
+ function ArithmeticDecoder(data, start, end) {
+ this.data = data;
+ this.bp = start;
+ this.dataEnd = end;
+
+ this.chigh = data[start];
+ this.clow = 0;
+
+ this.byteIn();
+
+ this.chigh = ((this.chigh << 7) & 0xFFFF) | ((this.clow >> 9) & 0x7F);
+ this.clow = (this.clow << 7) & 0xFFFF;
+ this.ct -= 7;
+ this.a = 0x8000;
+ }
+
+ ArithmeticDecoder.prototype = {
+ // C.3.4 Compressed data input (BYTEIN)
+ byteIn: function ArithmeticDecoder_byteIn() {
+ var data = this.data;
+ var bp = this.bp;
+ if (data[bp] === 0xFF) {
+ var b1 = data[bp + 1];
+ if (b1 > 0x8F) {
+ this.clow += 0xFF00;
+ this.ct = 8;
+ } else {
+ bp++;
+ this.clow += (data[bp] << 9);
+ this.ct = 7;
+ this.bp = bp;
+ }
+ } else {
+ bp++;
+ this.clow += bp < this.dataEnd ? (data[bp] << 8) : 0xFF00;
+ this.ct = 8;
+ this.bp = bp;
+ }
+ if (this.clow > 0xFFFF) {
+ this.chigh += (this.clow >> 16);
+ this.clow &= 0xFFFF;
+ }
+ },
+ // C.3.2 Decoding a decision (DECODE)
+ readBit: function ArithmeticDecoder_readBit(contexts, pos) {
+ // contexts are packed into 1 byte:
+ // highest 7 bits carry cx.index, lowest bit carries cx.mps
+ var cx_index = contexts[pos] >> 1, cx_mps = contexts[pos] & 1;
+ var qeTableIcx = QeTable[cx_index];
+ var qeIcx = qeTableIcx.qe;
+ var d;
+ var a = this.a - qeIcx;
+
+ if (this.chigh < qeIcx) {
+ // exchangeLps
+ if (a < qeIcx) {
+ a = qeIcx;
+ d = cx_mps;
+ cx_index = qeTableIcx.nmps;
+ } else {
+ a = qeIcx;
+ d = 1 ^ cx_mps;
+ if (qeTableIcx.switchFlag === 1) {
+ cx_mps = d;
+ }
+ cx_index = qeTableIcx.nlps;
+ }
+ } else {
+ this.chigh -= qeIcx;
+ if ((a & 0x8000) !== 0) {
+ this.a = a;
+ return cx_mps;
+ }
+ // exchangeMps
+ if (a < qeIcx) {
+ d = 1 ^ cx_mps;
+ if (qeTableIcx.switchFlag === 1) {
+ cx_mps = d;
+ }
+ cx_index = qeTableIcx.nlps;
+ } else {
+ d = cx_mps;
+ cx_index = qeTableIcx.nmps;
+ }
+ }
+ // C.3.3 renormD;
+ do {
+ if (this.ct === 0) {
+ this.byteIn();
+ }
+
+ a <<= 1;
+ this.chigh = ((this.chigh << 1) & 0xFFFF) | ((this.clow >> 15) & 1);
+ this.clow = (this.clow << 1) & 0xFFFF;
+ this.ct--;
+ } while ((a & 0x8000) === 0);
+ this.a = a;
+
+ contexts[pos] = cx_index << 1 | cx_mps;
+ return d;
+ }
+ };
+
+ return ArithmeticDecoder;
+})();
+
+
+var JpegImage = (function jpegImage() {
+ var dctZigZag = new Uint8Array([
+ 0,
+ 1, 8,
+ 16, 9, 2,
+ 3, 10, 17, 24,
+ 32, 25, 18, 11, 4,
+ 5, 12, 19, 26, 33, 40,
+ 48, 41, 34, 27, 20, 13, 6,
+ 7, 14, 21, 28, 35, 42, 49, 56,
+ 57, 50, 43, 36, 29, 22, 15,
+ 23, 30, 37, 44, 51, 58,
+ 59, 52, 45, 38, 31,
+ 39, 46, 53, 60,
+ 61, 54, 47,
+ 55, 62,
+ 63
+ ]);
+
+ var dctCos1 = 4017; // cos(pi/16)
+ var dctSin1 = 799; // sin(pi/16)
+ var dctCos3 = 3406; // cos(3*pi/16)
+ var dctSin3 = 2276; // sin(3*pi/16)
+ var dctCos6 = 1567; // cos(6*pi/16)
+ var dctSin6 = 3784; // sin(6*pi/16)
+ var dctSqrt2 = 5793; // sqrt(2)
+ var dctSqrt1d2 = 2896; // sqrt(2) / 2
+
+ function constructor() {
+ }
+
+ function buildHuffmanTable(codeLengths, values) {
+ var k = 0, code = [], i, j, length = 16;
+ while (length > 0 && !codeLengths[length - 1]) {
+ length--;
+ }
+ code.push({children: [], index: 0});
+ var p = code[0], q;
+ for (i = 0; i < length; i++) {
+ for (j = 0; j < codeLengths[i]; j++) {
+ p = code.pop();
+ p.children[p.index] = values[k];
+ while (p.index > 0) {
+ p = code.pop();
+ }
+ p.index++;
+ code.push(p);
+ while (code.length <= i) {
+ code.push(q = {children: [], index: 0});
+ p.children[p.index] = q.children;
+ p = q;
+ }
+ k++;
+ }
+ if (i + 1 < length) {
+ // p here points to last code
+ code.push(q = {children: [], index: 0});
+ p.children[p.index] = q.children;
+ p = q;
+ }
+ }
+ return code[0].children;
+ }
+
+ function getBlockBufferOffset(component, row, col) {
+ return 64 * ((component.blocksPerLine + 1) * row + col);
+ }
+
+ function decodeScan(data, offset, frame, components, resetInterval,
+ spectralStart, spectralEnd, successivePrev, successive) {
+ var precision = frame.precision;
+ var samplesPerLine = frame.samplesPerLine;
+ var scanLines = frame.scanLines;
+ var mcusPerLine = frame.mcusPerLine;
+ var progressive = frame.progressive;
+ var maxH = frame.maxH, maxV = frame.maxV;
+
+ var startOffset = offset, bitsData = 0, bitsCount = 0;
+
+ function readBit() {
+ if (bitsCount > 0) {
+ bitsCount--;
+ return (bitsData >> bitsCount) & 1;
+ }
+ bitsData = data[offset++];
+ if (bitsData === 0xFF) {
+ var nextByte = data[offset++];
+ if (nextByte) {
+ throw 'unexpected marker: ' +
+ ((bitsData << 8) | nextByte).toString(16);
+ }
+ // unstuff 0
+ }
+ bitsCount = 7;
+ return bitsData >>> 7;
+ }
+
+ function decodeHuffman(tree) {
+ var node = tree;
+ while (true) {
+ node = node[readBit()];
+ if (typeof node === 'number') {
+ return node;
+ }
+ if (typeof node !== 'object') {
+ throw 'invalid huffman sequence';
+ }
+ }
+ }
+
+ function receive(length) {
+ var n = 0;
+ while (length > 0) {
+ n = (n << 1) | readBit();
+ length--;
+ }
+ return n;
+ }
+
+ function receiveAndExtend(length) {
+ if (length === 1) {
+ return readBit() === 1 ? 1 : -1;
+ }
+ var n = receive(length);
+ if (n >= 1 << (length - 1)) {
+ return n;
+ }
+ return n + (-1 << length) + 1;
+ }
+
+ function decodeBaseline(component, offset) {
+ var t = decodeHuffman(component.huffmanTableDC);
+ var diff = t === 0 ? 0 : receiveAndExtend(t);
+ component.blockData[offset] = (component.pred += diff);
+ var k = 1;
+ while (k < 64) {
+ var rs = decodeHuffman(component.huffmanTableAC);
+ var s = rs & 15, r = rs >> 4;
+ if (s === 0) {
+ if (r < 15) {
+ break;
+ }
+ k += 16;
+ continue;
+ }
+ k += r;
+ var z = dctZigZag[k];
+ component.blockData[offset + z] = receiveAndExtend(s);
+ k++;
+ }
+ }
+
+ function decodeDCFirst(component, offset) {
+ var t = decodeHuffman(component.huffmanTableDC);
+ var diff = t === 0 ? 0 : (receiveAndExtend(t) << successive);
+ component.blockData[offset] = (component.pred += diff);
+ }
+
+ function decodeDCSuccessive(component, offset) {
+ component.blockData[offset] |= readBit() << successive;
+ }
+
+ var eobrun = 0;
+ function decodeACFirst(component, offset) {
+ if (eobrun > 0) {
+ eobrun--;
+ return;
+ }
+ var k = spectralStart, e = spectralEnd;
+ while (k <= e) {
+ var rs = decodeHuffman(component.huffmanTableAC);
+ var s = rs & 15, r = rs >> 4;
+ if (s === 0) {
+ if (r < 15) {
+ eobrun = receive(r) + (1 << r) - 1;
+ break;
+ }
+ k += 16;
+ continue;
+ }
+ k += r;
+ var z = dctZigZag[k];
+ component.blockData[offset + z] =
+ receiveAndExtend(s) * (1 << successive);
+ k++;
+ }
+ }
+
+ var successiveACState = 0, successiveACNextValue;
+ function decodeACSuccessive(component, offset) {
+ var k = spectralStart;
+ var e = spectralEnd;
+ var r = 0;
+ var s;
+ var rs;
+ while (k <= e) {
+ var z = dctZigZag[k];
+ switch (successiveACState) {
+ case 0: // initial state
+ rs = decodeHuffman(component.huffmanTableAC);
+ s = rs & 15;
+ r = rs >> 4;
+ if (s === 0) {
+ if (r < 15) {
+ eobrun = receive(r) + (1 << r);
+ successiveACState = 4;
+ } else {
+ r = 16;
+ successiveACState = 1;
+ }
+ } else {
+ if (s !== 1) {
+ throw 'invalid ACn encoding';
+ }
+ successiveACNextValue = receiveAndExtend(s);
+ successiveACState = r ? 2 : 3;
+ }
+ continue;
+ case 1: // skipping r zero items
+ case 2:
+ if (component.blockData[offset + z]) {
+ component.blockData[offset + z] += (readBit() << successive);
+ } else {
+ r--;
+ if (r === 0) {
+ successiveACState = successiveACState === 2 ? 3 : 0;
+ }
+ }
+ break;
+ case 3: // set value for a zero item
+ if (component.blockData[offset + z]) {
+ component.blockData[offset + z] += (readBit() << successive);
+ } else {
+ component.blockData[offset + z] =
+ successiveACNextValue << successive;
+ successiveACState = 0;
+ }
+ break;
+ case 4: // eob
+ if (component.blockData[offset + z]) {
+ component.blockData[offset + z] += (readBit() << successive);
+ }
+ break;
+ }
+ k++;
+ }
+ if (successiveACState === 4) {
+ eobrun--;
+ if (eobrun === 0) {
+ successiveACState = 0;
+ }
+ }
+ }
+
+ function decodeMcu(component, decode, mcu, row, col) {
+ var mcuRow = (mcu / mcusPerLine) | 0;
+ var mcuCol = mcu % mcusPerLine;
+ var blockRow = mcuRow * component.v + row;
+ var blockCol = mcuCol * component.h + col;
+ var offset = getBlockBufferOffset(component, blockRow, blockCol);
+ decode(component, offset);
+ }
+
+ function decodeBlock(component, decode, mcu) {
+ var blockRow = (mcu / component.blocksPerLine) | 0;
+ var blockCol = mcu % component.blocksPerLine;
+ var offset = getBlockBufferOffset(component, blockRow, blockCol);
+ decode(component, offset);
+ }
+
+ var componentsLength = components.length;
+ var component, i, j, k, n;
+ var decodeFn;
+ if (progressive) {
+ if (spectralStart === 0) {
+ decodeFn = successivePrev === 0 ? decodeDCFirst : decodeDCSuccessive;
+ } else {
+ decodeFn = successivePrev === 0 ? decodeACFirst : decodeACSuccessive;
+ }
+ } else {
+ decodeFn = decodeBaseline;
+ }
+
+ var mcu = 0, marker;
+ var mcuExpected;
+ if (componentsLength === 1) {
+ mcuExpected = components[0].blocksPerLine * components[0].blocksPerColumn;
+ } else {
+ mcuExpected = mcusPerLine * frame.mcusPerColumn;
+ }
+ if (!resetInterval) {
+ resetInterval = mcuExpected;
+ }
+
+ var h, v;
+ while (mcu < mcuExpected) {
+ // reset interval stuff
+ for (i = 0; i < componentsLength; i++) {
+ components[i].pred = 0;
+ }
+ eobrun = 0;
+
+ if (componentsLength === 1) {
+ component = components[0];
+ for (n = 0; n < resetInterval; n++) {
+ decodeBlock(component, decodeFn, mcu);
+ mcu++;
+ }
+ } else {
+ for (n = 0; n < resetInterval; n++) {
+ for (i = 0; i < componentsLength; i++) {
+ component = components[i];
+ h = component.h;
+ v = component.v;
+ for (j = 0; j < v; j++) {
+ for (k = 0; k < h; k++) {
+ decodeMcu(component, decodeFn, mcu, j, k);
+ }
+ }
+ }
+ mcu++;
+ }
+ }
+
+ // find marker
+ bitsCount = 0;
+ marker = (data[offset] << 8) | data[offset + 1];
+ if (marker <= 0xFF00) {
+ throw 'marker was not found';
+ }
+
+ if (marker >= 0xFFD0 && marker <= 0xFFD7) { // RSTx
+ offset += 2;
+ } else {
+ break;
+ }
+ }
+
+ return offset - startOffset;
+ }
+
+ // A port of poppler's IDCT method which in turn is taken from:
+ // Christoph Loeffler, Adriaan Ligtenberg, George S. Moschytz,
+ // 'Practical Fast 1-D DCT Algorithms with 11 Multiplications',
+ // IEEE Intl. Conf. on Acoustics, Speech & Signal Processing, 1989,
+ // 988-991.
+ function quantizeAndInverse(component, blockBufferOffset, p) {
+ var qt = component.quantizationTable, blockData = component.blockData;
+ var v0, v1, v2, v3, v4, v5, v6, v7;
+ var p0, p1, p2, p3, p4, p5, p6, p7;
+ var t;
+
+ // inverse DCT on rows
+ for (var row = 0; row < 64; row += 8) {
+ // gather block data
+ p0 = blockData[blockBufferOffset + row];
+ p1 = blockData[blockBufferOffset + row + 1];
+ p2 = blockData[blockBufferOffset + row + 2];
+ p3 = blockData[blockBufferOffset + row + 3];
+ p4 = blockData[blockBufferOffset + row + 4];
+ p5 = blockData[blockBufferOffset + row + 5];
+ p6 = blockData[blockBufferOffset + row + 6];
+ p7 = blockData[blockBufferOffset + row + 7];
+
+ // dequant p0
+ p0 *= qt[row];
+
+ // check for all-zero AC coefficients
+ if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) {
+ t = (dctSqrt2 * p0 + 512) >> 10;
+ p[row] = t;
+ p[row + 1] = t;
+ p[row + 2] = t;
+ p[row + 3] = t;
+ p[row + 4] = t;
+ p[row + 5] = t;
+ p[row + 6] = t;
+ p[row + 7] = t;
+ continue;
+ }
+ // dequant p1 ... p7
+ p1 *= qt[row + 1];
+ p2 *= qt[row + 2];
+ p3 *= qt[row + 3];
+ p4 *= qt[row + 4];
+ p5 *= qt[row + 5];
+ p6 *= qt[row + 6];
+ p7 *= qt[row + 7];
+
+ // stage 4
+ v0 = (dctSqrt2 * p0 + 128) >> 8;
+ v1 = (dctSqrt2 * p4 + 128) >> 8;
+ v2 = p2;
+ v3 = p6;
+ v4 = (dctSqrt1d2 * (p1 - p7) + 128) >> 8;
+ v7 = (dctSqrt1d2 * (p1 + p7) + 128) >> 8;
+ v5 = p3 << 4;
+ v6 = p5 << 4;
+
+ // stage 3
+ v0 = (v0 + v1 + 1) >> 1;
+ v1 = v0 - v1;
+ t = (v2 * dctSin6 + v3 * dctCos6 + 128) >> 8;
+ v2 = (v2 * dctCos6 - v3 * dctSin6 + 128) >> 8;
+ v3 = t;
+ v4 = (v4 + v6 + 1) >> 1;
+ v6 = v4 - v6;
+ v7 = (v7 + v5 + 1) >> 1;
+ v5 = v7 - v5;
+
+ // stage 2
+ v0 = (v0 + v3 + 1) >> 1;
+ v3 = v0 - v3;
+ v1 = (v1 + v2 + 1) >> 1;
+ v2 = v1 - v2;
+ t = (v4 * dctSin3 + v7 * dctCos3 + 2048) >> 12;
+ v4 = (v4 * dctCos3 - v7 * dctSin3 + 2048) >> 12;
+ v7 = t;
+ t = (v5 * dctSin1 + v6 * dctCos1 + 2048) >> 12;
+ v5 = (v5 * dctCos1 - v6 * dctSin1 + 2048) >> 12;
+ v6 = t;
+
+ // stage 1
+ p[row] = v0 + v7;
+ p[row + 7] = v0 - v7;
+ p[row + 1] = v1 + v6;
+ p[row + 6] = v1 - v6;
+ p[row + 2] = v2 + v5;
+ p[row + 5] = v2 - v5;
+ p[row + 3] = v3 + v4;
+ p[row + 4] = v3 - v4;
+ }
+
+ // inverse DCT on columns
+ for (var col = 0; col < 8; ++col) {
+ p0 = p[col];
+ p1 = p[col + 8];
+ p2 = p[col + 16];
+ p3 = p[col + 24];
+ p4 = p[col + 32];
+ p5 = p[col + 40];
+ p6 = p[col + 48];
+ p7 = p[col + 56];
+
+ // check for all-zero AC coefficients
+ if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) {
+ t = (dctSqrt2 * p0 + 8192) >> 14;
+ // convert to 8 bit
+ t = (t < -2040) ? 0 : (t >= 2024) ? 255 : (t + 2056) >> 4;
+ blockData[blockBufferOffset + col] = t;
+ blockData[blockBufferOffset + col + 8] = t;
+ blockData[blockBufferOffset + col + 16] = t;
+ blockData[blockBufferOffset + col + 24] = t;
+ blockData[blockBufferOffset + col + 32] = t;
+ blockData[blockBufferOffset + col + 40] = t;
+ blockData[blockBufferOffset + col + 48] = t;
+ blockData[blockBufferOffset + col + 56] = t;
+ continue;
+ }
+
+ // stage 4
+ v0 = (dctSqrt2 * p0 + 2048) >> 12;
+ v1 = (dctSqrt2 * p4 + 2048) >> 12;
+ v2 = p2;
+ v3 = p6;
+ v4 = (dctSqrt1d2 * (p1 - p7) + 2048) >> 12;
+ v7 = (dctSqrt1d2 * (p1 + p7) + 2048) >> 12;
+ v5 = p3;
+ v6 = p5;
+
+ // stage 3
+ // Shift v0 by 128.5 << 5 here, so we don't need to shift p0...p7 when
+ // converting to UInt8 range later.
+ v0 = ((v0 + v1 + 1) >> 1) + 4112;
+ v1 = v0 - v1;
+ t = (v2 * dctSin6 + v3 * dctCos6 + 2048) >> 12;
+ v2 = (v2 * dctCos6 - v3 * dctSin6 + 2048) >> 12;
+ v3 = t;
+ v4 = (v4 + v6 + 1) >> 1;
+ v6 = v4 - v6;
+ v7 = (v7 + v5 + 1) >> 1;
+ v5 = v7 - v5;
+
+ // stage 2
+ v0 = (v0 + v3 + 1) >> 1;
+ v3 = v0 - v3;
+ v1 = (v1 + v2 + 1) >> 1;
+ v2 = v1 - v2;
+ t = (v4 * dctSin3 + v7 * dctCos3 + 2048) >> 12;
+ v4 = (v4 * dctCos3 - v7 * dctSin3 + 2048) >> 12;
+ v7 = t;
+ t = (v5 * dctSin1 + v6 * dctCos1 + 2048) >> 12;
+ v5 = (v5 * dctCos1 - v6 * dctSin1 + 2048) >> 12;
+ v6 = t;
+
+ // stage 1
+ p0 = v0 + v7;
+ p7 = v0 - v7;
+ p1 = v1 + v6;
+ p6 = v1 - v6;
+ p2 = v2 + v5;
+ p5 = v2 - v5;
+ p3 = v3 + v4;
+ p4 = v3 - v4;
+
+ // convert to 8-bit integers
+ p0 = (p0 < 16) ? 0 : (p0 >= 4080) ? 255 : p0 >> 4;
+ p1 = (p1 < 16) ? 0 : (p1 >= 4080) ? 255 : p1 >> 4;
+ p2 = (p2 < 16) ? 0 : (p2 >= 4080) ? 255 : p2 >> 4;
+ p3 = (p3 < 16) ? 0 : (p3 >= 4080) ? 255 : p3 >> 4;
+ p4 = (p4 < 16) ? 0 : (p4 >= 4080) ? 255 : p4 >> 4;
+ p5 = (p5 < 16) ? 0 : (p5 >= 4080) ? 255 : p5 >> 4;
+ p6 = (p6 < 16) ? 0 : (p6 >= 4080) ? 255 : p6 >> 4;
+ p7 = (p7 < 16) ? 0 : (p7 >= 4080) ? 255 : p7 >> 4;
+
+ // store block data
+ blockData[blockBufferOffset + col] = p0;
+ blockData[blockBufferOffset + col + 8] = p1;
+ blockData[blockBufferOffset + col + 16] = p2;
+ blockData[blockBufferOffset + col + 24] = p3;
+ blockData[blockBufferOffset + col + 32] = p4;
+ blockData[blockBufferOffset + col + 40] = p5;
+ blockData[blockBufferOffset + col + 48] = p6;
+ blockData[blockBufferOffset + col + 56] = p7;
+ }
+ }
+
+ function buildComponentData(frame, component) {
+ var blocksPerLine = component.blocksPerLine;
+ var blocksPerColumn = component.blocksPerColumn;
+ var computationBuffer = new Int16Array(64);
+
+ for (var blockRow = 0; blockRow < blocksPerColumn; blockRow++) {
+ for (var blockCol = 0; blockCol < blocksPerLine; blockCol++) {
+ var offset = getBlockBufferOffset(component, blockRow, blockCol);
+ quantizeAndInverse(component, offset, computationBuffer);
+ }
+ }
+ return component.blockData;
+ }
+
+ function clamp0to255(a) {
+ return a <= 0 ? 0 : a >= 255 ? 255 : a;
+ }
+
+ constructor.prototype = {
+ parse: function parse(data) {
+
+ function readUint16() {
+ var value = (data[offset] << 8) | data[offset + 1];
+ offset += 2;
+ return value;
+ }
+
+ function readDataBlock() {
+ var length = readUint16();
+ var array = data.subarray(offset, offset + length - 2);
+ offset += array.length;
+ return array;
+ }
+
+ function prepareComponents(frame) {
+ var mcusPerLine = Math.ceil(frame.samplesPerLine / 8 / frame.maxH);
+ var mcusPerColumn = Math.ceil(frame.scanLines / 8 / frame.maxV);
+ for (var i = 0; i < frame.components.length; i++) {
+ component = frame.components[i];
+ var blocksPerLine = Math.ceil(Math.ceil(frame.samplesPerLine / 8) *
+ component.h / frame.maxH);
+ var blocksPerColumn = Math.ceil(Math.ceil(frame.scanLines / 8) *
+ component.v / frame.maxV);
+ var blocksPerLineForMcu = mcusPerLine * component.h;
+ var blocksPerColumnForMcu = mcusPerColumn * component.v;
+
+ var blocksBufferSize = 64 * blocksPerColumnForMcu *
+ (blocksPerLineForMcu + 1);
+ component.blockData = new Int16Array(blocksBufferSize);
+ component.blocksPerLine = blocksPerLine;
+ component.blocksPerColumn = blocksPerColumn;
+ }
+ frame.mcusPerLine = mcusPerLine;
+ frame.mcusPerColumn = mcusPerColumn;
+ }
+
+ var offset = 0, length = data.length;
+ var jfif = null;
+ var adobe = null;
+ var pixels = null;
+ var frame, resetInterval;
+ var quantizationTables = [];
+ var huffmanTablesAC = [], huffmanTablesDC = [];
+ var fileMarker = readUint16();
+ if (fileMarker !== 0xFFD8) { // SOI (Start of Image)
+ throw 'SOI not found';
+ }
+
+ fileMarker = readUint16();
+ while (fileMarker !== 0xFFD9) { // EOI (End of image)
+ var i, j, l;
+ switch(fileMarker) {
+ case 0xFFE0: // APP0 (Application Specific)
+ case 0xFFE1: // APP1
+ case 0xFFE2: // APP2
+ case 0xFFE3: // APP3
+ case 0xFFE4: // APP4
+ case 0xFFE5: // APP5
+ case 0xFFE6: // APP6
+ case 0xFFE7: // APP7
+ case 0xFFE8: // APP8
+ case 0xFFE9: // APP9
+ case 0xFFEA: // APP10
+ case 0xFFEB: // APP11
+ case 0xFFEC: // APP12
+ case 0xFFED: // APP13
+ case 0xFFEE: // APP14
+ case 0xFFEF: // APP15
+ case 0xFFFE: // COM (Comment)
+ var appData = readDataBlock();
+
+ if (fileMarker === 0xFFE0) {
+ if (appData[0] === 0x4A && appData[1] === 0x46 &&
+ appData[2] === 0x49 && appData[3] === 0x46 &&
+ appData[4] === 0) { // 'JFIF\x00'
+ jfif = {
+ version: { major: appData[5], minor: appData[6] },
+ densityUnits: appData[7],
+ xDensity: (appData[8] << 8) | appData[9],
+ yDensity: (appData[10] << 8) | appData[11],
+ thumbWidth: appData[12],
+ thumbHeight: appData[13],
+ thumbData: appData.subarray(14, 14 +
+ 3 * appData[12] * appData[13])
+ };
+ }
+ }
+ // TODO APP1 - Exif
+ if (fileMarker === 0xFFEE) {
+ if (appData[0] === 0x41 && appData[1] === 0x64 &&
+ appData[2] === 0x6F && appData[3] === 0x62 &&
+ appData[4] === 0x65) { // 'Adobe'
+ adobe = {
+ version: (appData[5] << 8) | appData[6],
+ flags0: (appData[7] << 8) | appData[8],
+ flags1: (appData[9] << 8) | appData[10],
+ transformCode: appData[11]
+ };
+ }
+ }
+ break;
+
+ case 0xFFDB: // DQT (Define Quantization Tables)
+ var quantizationTablesLength = readUint16();
+ var quantizationTablesEnd = quantizationTablesLength + offset - 2;
+ var z;
+ while (offset < quantizationTablesEnd) {
+ var quantizationTableSpec = data[offset++];
+ var tableData = new Uint16Array(64);
+ if ((quantizationTableSpec >> 4) === 0) { // 8 bit values
+ for (j = 0; j < 64; j++) {
+ z = dctZigZag[j];
+ tableData[z] = data[offset++];
+ }
+ } else if ((quantizationTableSpec >> 4) === 1) { //16 bit
+ for (j = 0; j < 64; j++) {
+ z = dctZigZag[j];
+ tableData[z] = readUint16();
+ }
+ } else {
+ throw 'DQT: invalid table spec';
+ }
+ quantizationTables[quantizationTableSpec & 15] = tableData;
+ }
+ break;
+
+ case 0xFFC0: // SOF0 (Start of Frame, Baseline DCT)
+ case 0xFFC1: // SOF1 (Start of Frame, Extended DCT)
+ case 0xFFC2: // SOF2 (Start of Frame, Progressive DCT)
+ if (frame) {
+ throw 'Only single frame JPEGs supported';
+ }
+ readUint16(); // skip data length
+ frame = {};
+ frame.extended = (fileMarker === 0xFFC1);
+ frame.progressive = (fileMarker === 0xFFC2);
+ frame.precision = data[offset++];
+ frame.scanLines = readUint16();
+ frame.samplesPerLine = readUint16();
+ frame.components = [];
+ frame.componentIds = {};
+ var componentsCount = data[offset++], componentId;
+ var maxH = 0, maxV = 0;
+ for (i = 0; i < componentsCount; i++) {
+ componentId = data[offset];
+ var h = data[offset + 1] >> 4;
+ var v = data[offset + 1] & 15;
+ if (maxH < h) {
+ maxH = h;
+ }
+ if (maxV < v) {
+ maxV = v;
+ }
+ var qId = data[offset + 2];
+ l = frame.components.push({
+ h: h,
+ v: v,
+ quantizationTable: quantizationTables[qId]
+ });
+ frame.componentIds[componentId] = l - 1;
+ offset += 3;
+ }
+ frame.maxH = maxH;
+ frame.maxV = maxV;
+ prepareComponents(frame);
+ break;
+
+ case 0xFFC4: // DHT (Define Huffman Tables)
+ var huffmanLength = readUint16();
+ for (i = 2; i < huffmanLength;) {
+ var huffmanTableSpec = data[offset++];
+ var codeLengths = new Uint8Array(16);
+ var codeLengthSum = 0;
+ for (j = 0; j < 16; j++, offset++) {
+ codeLengthSum += (codeLengths[j] = data[offset]);
+ }
+ var huffmanValues = new Uint8Array(codeLengthSum);
+ for (j = 0; j < codeLengthSum; j++, offset++) {
+ huffmanValues[j] = data[offset];
+ }
+ i += 17 + codeLengthSum;
+
+ ((huffmanTableSpec >> 4) === 0 ?
+ huffmanTablesDC : huffmanTablesAC)[huffmanTableSpec & 15] =
+ buildHuffmanTable(codeLengths, huffmanValues);
+ }
+ break;
+
+ case 0xFFDD: // DRI (Define Restart Interval)
+ readUint16(); // skip data length
+ resetInterval = readUint16();
+ break;
+
+ case 0xFFDA: // SOS (Start of Scan)
+ var scanLength = readUint16();
+ var selectorsCount = data[offset++];
+ var components = [], component;
+ for (i = 0; i < selectorsCount; i++) {
+ var componentIndex = frame.componentIds[data[offset++]];
+ component = frame.components[componentIndex];
+ var tableSpec = data[offset++];
+ component.huffmanTableDC = huffmanTablesDC[tableSpec >> 4];
+ component.huffmanTableAC = huffmanTablesAC[tableSpec & 15];
+ components.push(component);
+ }
+ var spectralStart = data[offset++];
+ var spectralEnd = data[offset++];
+ var successiveApproximation = data[offset++];
+ var processed = decodeScan(data, offset,
+ frame, components, resetInterval,
+ spectralStart, spectralEnd,
+ successiveApproximation >> 4, successiveApproximation & 15);
+ offset += processed;
+ break;
+
+ case 0xFFFF: // Fill bytes
+ if (data[offset] !== 0xFF) { // Avoid skipping a valid marker.
+ offset--;
+ }
+ break;
+
+ default:
+ if (data[offset - 3] === 0xFF &&
+ data[offset - 2] >= 0xC0 && data[offset - 2] <= 0xFE) {
+ // could be incorrect encoding -- last 0xFF byte of the previous
+ // block was eaten by the encoder
+ offset -= 3;
+ break;
+ }
+ throw 'unknown JPEG marker ' + fileMarker.toString(16);
+ }
+ fileMarker = readUint16();
+ }
+
+ this.width = frame.samplesPerLine;
+ this.height = frame.scanLines;
+ this.jfif = jfif;
+ this.adobe = adobe;
+ this.components = [];
+ for (i = 0; i < frame.components.length; i++) {
+ component = frame.components[i];
+ this.components.push({
+ output: buildComponentData(frame, component),
+ scaleX: component.h / frame.maxH,
+ scaleY: component.v / frame.maxV,
+ blocksPerLine: component.blocksPerLine,
+ blocksPerColumn: component.blocksPerColumn
+ });
+ }
+ this.numComponents = this.components.length;
+ },
+
+ _getLinearizedBlockData: function getLinearizedBlockData(width, height) {
+ var scaleX = this.width / width, scaleY = this.height / height;
+
+ var component, componentScaleX, componentScaleY, blocksPerScanline;
+ var x, y, i, j, k;
+ var index;
+ var offset = 0;
+ var output;
+ var numComponents = this.components.length;
+ var dataLength = width * height * numComponents;
+ var data = new Uint8Array(dataLength);
+ var xScaleBlockOffset = new Uint32Array(width);
+ var mask3LSB = 0xfffffff8; // used to clear the 3 LSBs
+
+ for (i = 0; i < numComponents; i++) {
+ component = this.components[i];
+ componentScaleX = component.scaleX * scaleX;
+ componentScaleY = component.scaleY * scaleY;
+ offset = i;
+ output = component.output;
+ blocksPerScanline = (component.blocksPerLine + 1) << 3;
+ // precalculate the xScaleBlockOffset
+ for (x = 0; x < width; x++) {
+ j = 0 | (x * componentScaleX);
+ xScaleBlockOffset[x] = ((j & mask3LSB) << 3) | (j & 7);
+ }
+ // linearize the blocks of the component
+ for (y = 0; y < height; y++) {
+ j = 0 | (y * componentScaleY);
+ index = blocksPerScanline * (j & mask3LSB) | ((j & 7) << 3);
+ for (x = 0; x < width; x++) {
+ data[offset] = output[index + xScaleBlockOffset[x]];
+ offset += numComponents;
+ }
+ }
+ }
+
+ // decodeTransform contains pairs of multiplier (-256..256) and additive
+ var transform = this.decodeTransform;
+ if (transform) {
+ for (i = 0; i < dataLength;) {
+ for (j = 0, k = 0; j < numComponents; j++, i++, k += 2) {
+ data[i] = ((data[i] * transform[k]) >> 8) + transform[k + 1];
+ }
+ }
+ }
+ return data;
+ },
+
+ _isColorConversionNeeded: function isColorConversionNeeded() {
+ if (this.adobe && this.adobe.transformCode) {
+ // The adobe transform marker overrides any previous setting
+ return true;
+ } else if (this.numComponents === 3) {
+ return true;
+ } else {
+ return false;
+ }
+ },
+
+ _convertYccToRgb: function convertYccToRgb(data) {
+ var Y, Cb, Cr;
+ for (var i = 0, length = data.length; i < length; i += 3) {
+ Y = data[i ];
+ Cb = data[i + 1];
+ Cr = data[i + 2];
+ data[i ] = clamp0to255(Y - 179.456 + 1.402 * Cr);
+ data[i + 1] = clamp0to255(Y + 135.459 - 0.344 * Cb - 0.714 * Cr);
+ data[i + 2] = clamp0to255(Y - 226.816 + 1.772 * Cb);
+ }
+ return data;
+ },
+
+ _convertYcckToRgb: function convertYcckToRgb(data) {
+ var Y, Cb, Cr, k;
+ var offset = 0;
+ for (var i = 0, length = data.length; i < length; i += 4) {
+ Y = data[i];
+ Cb = data[i + 1];
+ Cr = data[i + 2];
+ k = data[i + 3];
+
+ var r = -122.67195406894 +
+ Cb * (-6.60635669420364e-5 * Cb + 0.000437130475926232 * Cr -
+ 5.4080610064599e-5 * Y + 0.00048449797120281 * k -
+ 0.154362151871126) +
+ Cr * (-0.000957964378445773 * Cr + 0.000817076911346625 * Y -
+ 0.00477271405408747 * k + 1.53380253221734) +
+ Y * (0.000961250184130688 * Y - 0.00266257332283933 * k +
+ 0.48357088451265) +
+ k * (-0.000336197177618394 * k + 0.484791561490776);
+
+ var g = 107.268039397724 +
+ Cb * (2.19927104525741e-5 * Cb - 0.000640992018297945 * Cr +
+ 0.000659397001245577 * Y + 0.000426105652938837 * k -
+ 0.176491792462875) +
+ Cr * (-0.000778269941513683 * Cr + 0.00130872261408275 * Y +
+ 0.000770482631801132 * k - 0.151051492775562) +
+ Y * (0.00126935368114843 * Y - 0.00265090189010898 * k +
+ 0.25802910206845) +
+ k * (-0.000318913117588328 * k - 0.213742400323665);
+
+ var b = -20.810012546947 +
+ Cb * (-0.000570115196973677 * Cb - 2.63409051004589e-5 * Cr +
+ 0.0020741088115012 * Y - 0.00288260236853442 * k +
+ 0.814272968359295) +
+ Cr * (-1.53496057440975e-5 * Cr - 0.000132689043961446 * Y +
+ 0.000560833691242812 * k - 0.195152027534049) +
+ Y * (0.00174418132927582 * Y - 0.00255243321439347 * k +
+ 0.116935020465145) +
+ k * (-0.000343531996510555 * k + 0.24165260232407);
+
+ data[offset++] = clamp0to255(r);
+ data[offset++] = clamp0to255(g);
+ data[offset++] = clamp0to255(b);
+ }
+ return data;
+ },
+
+ _convertYcckToCmyk: function convertYcckToCmyk(data) {
+ var Y, Cb, Cr;
+ for (var i = 0, length = data.length; i < length; i += 4) {
+ Y = data[i];
+ Cb = data[i + 1];
+ Cr = data[i + 2];
+ data[i ] = clamp0to255(434.456 - Y - 1.402 * Cr);
+ data[i + 1] = clamp0to255(119.541 - Y + 0.344 * Cb + 0.714 * Cr);
+ data[i + 2] = clamp0to255(481.816 - Y - 1.772 * Cb);
+ // K in data[i + 3] is unchanged
+ }
+ return data;
+ },
+
+ _convertCmykToRgb: function convertCmykToRgb(data) {
+ var c, m, y, k;
+ var offset = 0;
+ var min = -255 * 255 * 255;
+ var scale = 1 / 255 / 255;
+ for (var i = 0, length = data.length; i < length; i += 4) {
+ c = data[i];
+ m = data[i + 1];
+ y = data[i + 2];
+ k = data[i + 3];
+
+ var r =
+ c * (-4.387332384609988 * c + 54.48615194189176 * m +
+ 18.82290502165302 * y + 212.25662451639585 * k -
+ 72734.4411664936) +
+ m * (1.7149763477362134 * m - 5.6096736904047315 * y -
+ 17.873870861415444 * k - 1401.7366389350734) +
+ y * (-2.5217340131683033 * y - 21.248923337353073 * k +
+ 4465.541406466231) -
+ k * (21.86122147463605 * k + 48317.86113160301);
+ var g =
+ c * (8.841041422036149 * c + 60.118027045597366 * m +
+ 6.871425592049007 * y + 31.159100130055922 * k -
+ 20220.756542821975) +
+ m * (-15.310361306967817 * m + 17.575251261109482 * y +
+ 131.35250912493976 * k - 48691.05921601825) +
+ y * (4.444339102852739 * y + 9.8632861493405 * k -
+ 6341.191035517494) -
+ k * (20.737325471181034 * k + 47890.15695978492);
+ var b =
+ c * (0.8842522430003296 * c + 8.078677503112928 * m +
+ 30.89978309703729 * y - 0.23883238689178934 * k -
+ 3616.812083916688) +
+ m * (10.49593273432072 * m + 63.02378494754052 * y +
+ 50.606957656360734 * k - 28620.90484698408) +
+ y * (0.03296041114873217 * y + 115.60384449646641 * k -
+ 49363.43385999684) -
+ k * (22.33816807309886 * k + 45932.16563550634);
+
+ data[offset++] = r >= 0 ? 255 : r <= min ? 0 : 255 + r * scale | 0;
+ data[offset++] = g >= 0 ? 255 : g <= min ? 0 : 255 + g * scale | 0;
+ data[offset++] = b >= 0 ? 255 : b <= min ? 0 : 255 + b * scale | 0;
+ }
+ return data;
+ },
+
+ getData: function getData(width, height, forceRGBoutput) {
+ if (this.numComponents > 4) {
+ throw 'Unsupported color mode';
+ }
+ // type of data: Uint8Array(width * height * numComponents)
+ var data = this._getLinearizedBlockData(width, height);
+
+ if (this.numComponents === 3) {
+ return this._convertYccToRgb(data);
+ } else if (this.numComponents === 4) {
+ if (this._isColorConversionNeeded()) {
+ if (forceRGBoutput) {
+ return this._convertYcckToRgb(data);
+ } else {
+ return this._convertYcckToCmyk(data);
+ }
+ } else if (forceRGBoutput) {
+ return this._convertCmykToRgb(data);
+ }
+ }
+ return data;
+ }
+ };
+
+ return constructor;
+})();
+
+
+var JpxImage = (function JpxImageClosure() {
+ // Table E.1
+ var SubbandsGainLog2 = {
+ 'LL': 0,
+ 'LH': 1,
+ 'HL': 1,
+ 'HH': 2
+ };
+ function JpxImage() {
+ this.failOnCorruptedImage = false;
+ }
+ JpxImage.prototype = {
+ parse: function JpxImage_parse(data) {
+
+ var head = readUint16(data, 0);
+ // No box header, immediate start of codestream (SOC)
+ if (head === 0xFF4F) {
+ this.parseCodestream(data, 0, data.length);
+ return;
+ }
+
+ var position = 0, length = data.length;
+ while (position < length) {
+ var headerSize = 8;
+ var lbox = readUint32(data, position);
+ var tbox = readUint32(data, position + 4);
+ position += headerSize;
+ if (lbox === 1) {
+ // XLBox: read UInt64 according to spec.
+ // JavaScript's int precision of 53 bit should be sufficient here.
+ lbox = readUint32(data, position) * 4294967296 +
+ readUint32(data, position + 4);
+ position += 8;
+ headerSize += 8;
+ }
+ if (lbox === 0) {
+ lbox = length - position + headerSize;
+ }
+ if (lbox < headerSize) {
+ throw new Error('JPX Error: Invalid box field size');
+ }
+ var dataLength = lbox - headerSize;
+ var jumpDataLength = true;
+ switch (tbox) {
+ case 0x6A703268: // 'jp2h'
+ jumpDataLength = false; // parsing child boxes
+ break;
+ case 0x636F6C72: // 'colr'
+ // Colorspaces are not used, the CS from the PDF is used.
+ var method = data[position];
+ var precedence = data[position + 1];
+ var approximation = data[position + 2];
+ if (method === 1) {
+ // enumerated colorspace
+ var colorspace = readUint32(data, position + 3);
+ switch (colorspace) {
+ case 16: // this indicates a sRGB colorspace
+ case 17: // this indicates a grayscale colorspace
+ case 18: // this indicates a YUV colorspace
+ break;
+ default:
+ warn('Unknown colorspace ' + colorspace);
+ break;
+ }
+ } else if (method === 2) {
+ info('ICC profile not supported');
+ }
+ break;
+ case 0x6A703263: // 'jp2c'
+ this.parseCodestream(data, position, position + dataLength);
+ break;
+ case 0x6A502020: // 'jP\024\024'
+ if (0x0d0a870a !== readUint32(data, position)) {
+ warn('Invalid JP2 signature');
+ }
+ break;
+ // The following header types are valid but currently not used:
+ case 0x6A501A1A: // 'jP\032\032'
+ case 0x66747970: // 'ftyp'
+ case 0x72726571: // 'rreq'
+ case 0x72657320: // 'res '
+ case 0x69686472: // 'ihdr'
+ break;
+ default:
+ var headerType = String.fromCharCode((tbox >> 24) & 0xFF,
+ (tbox >> 16) & 0xFF,
+ (tbox >> 8) & 0xFF,
+ tbox & 0xFF);
+ warn('Unsupported header type ' + tbox + ' (' + headerType + ')');
+ break;
+ }
+ if (jumpDataLength) {
+ position += dataLength;
+ }
+ }
+ },
+ parseImageProperties: function JpxImage_parseImageProperties(stream) {
+ var newByte = stream.getByte();
+ while (newByte >= 0) {
+ var oldByte = newByte;
+ newByte = stream.getByte();
+ var code = (oldByte << 8) | newByte;
+ // Image and tile size (SIZ)
+ if (code === 0xFF51) {
+ stream.skip(4);
+ var Xsiz = stream.getInt32() >>> 0; // Byte 4
+ var Ysiz = stream.getInt32() >>> 0; // Byte 8
+ var XOsiz = stream.getInt32() >>> 0; // Byte 12
+ var YOsiz = stream.getInt32() >>> 0; // Byte 16
+ stream.skip(16);
+ var Csiz = stream.getUint16(); // Byte 36
+ this.width = Xsiz - XOsiz;
+ this.height = Ysiz - YOsiz;
+ this.componentsCount = Csiz;
+ // Results are always returned as Uint8Arrays
+ this.bitsPerComponent = 8;
+ return;
+ }
+ }
+ throw new Error('JPX Error: No size marker found in JPX stream');
+ },
+ parseCodestream: function JpxImage_parseCodestream(data, start, end) {
+ var context = {};
+ try {
+ var doNotRecover = false;
+ var position = start;
+ while (position + 1 < end) {
+ var code = readUint16(data, position);
+ position += 2;
+
+ var length = 0, j, sqcd, spqcds, spqcdSize, scalarExpounded, tile;
+ switch (code) {
+ case 0xFF4F: // Start of codestream (SOC)
+ context.mainHeader = true;
+ break;
+ case 0xFFD9: // End of codestream (EOC)
+ break;
+ case 0xFF51: // Image and tile size (SIZ)
+ length = readUint16(data, position);
+ var siz = {};
+ siz.Xsiz = readUint32(data, position + 4);
+ siz.Ysiz = readUint32(data, position + 8);
+ siz.XOsiz = readUint32(data, position + 12);
+ siz.YOsiz = readUint32(data, position + 16);
+ siz.XTsiz = readUint32(data, position + 20);
+ siz.YTsiz = readUint32(data, position + 24);
+ siz.XTOsiz = readUint32(data, position + 28);
+ siz.YTOsiz = readUint32(data, position + 32);
+ var componentsCount = readUint16(data, position + 36);
+ siz.Csiz = componentsCount;
+ var components = [];
+ j = position + 38;
+ for (var i = 0; i < componentsCount; i++) {
+ var component = {
+ precision: (data[j] & 0x7F) + 1,
+ isSigned: !!(data[j] & 0x80),
+ XRsiz: data[j + 1],
+ YRsiz: data[j + 1]
+ };
+ calculateComponentDimensions(component, siz);
+ components.push(component);
+ }
+ context.SIZ = siz;
+ context.components = components;
+ calculateTileGrids(context, components);
+ context.QCC = [];
+ context.COC = [];
+ break;
+ case 0xFF5C: // Quantization default (QCD)
+ length = readUint16(data, position);
+ var qcd = {};
+ j = position + 2;
+ sqcd = data[j++];
+ switch (sqcd & 0x1F) {
+ case 0:
+ spqcdSize = 8;
+ scalarExpounded = true;
+ break;
+ case 1:
+ spqcdSize = 16;
+ scalarExpounded = false;
+ break;
+ case 2:
+ spqcdSize = 16;
+ scalarExpounded = true;
+ break;
+ default:
+ throw new Error('JPX Error: Invalid SQcd value ' + sqcd);
+ }
+ qcd.noQuantization = (spqcdSize === 8);
+ qcd.scalarExpounded = scalarExpounded;
+ qcd.guardBits = sqcd >> 5;
+ spqcds = [];
+ while (j < length + position) {
+ var spqcd = {};
+ if (spqcdSize === 8) {
+ spqcd.epsilon = data[j++] >> 3;
+ spqcd.mu = 0;
+ } else {
+ spqcd.epsilon = data[j] >> 3;
+ spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1];
+ j += 2;
+ }
+ spqcds.push(spqcd);
+ }
+ qcd.SPqcds = spqcds;
+ if (context.mainHeader) {
+ context.QCD = qcd;
+ } else {
+ context.currentTile.QCD = qcd;
+ context.currentTile.QCC = [];
+ }
+ break;
+ case 0xFF5D: // Quantization component (QCC)
+ length = readUint16(data, position);
+ var qcc = {};
+ j = position + 2;
+ var cqcc;
+ if (context.SIZ.Csiz < 257) {
+ cqcc = data[j++];
+ } else {
+ cqcc = readUint16(data, j);
+ j += 2;
+ }
+ sqcd = data[j++];
+ switch (sqcd & 0x1F) {
+ case 0:
+ spqcdSize = 8;
+ scalarExpounded = true;
+ break;
+ case 1:
+ spqcdSize = 16;
+ scalarExpounded = false;
+ break;
+ case 2:
+ spqcdSize = 16;
+ scalarExpounded = true;
+ break;
+ default:
+ throw new Error('JPX Error: Invalid SQcd value ' + sqcd);
+ }
+ qcc.noQuantization = (spqcdSize === 8);
+ qcc.scalarExpounded = scalarExpounded;
+ qcc.guardBits = sqcd >> 5;
+ spqcds = [];
+ while (j < (length + position)) {
+ spqcd = {};
+ if (spqcdSize === 8) {
+ spqcd.epsilon = data[j++] >> 3;
+ spqcd.mu = 0;
+ } else {
+ spqcd.epsilon = data[j] >> 3;
+ spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1];
+ j += 2;
+ }
+ spqcds.push(spqcd);
+ }
+ qcc.SPqcds = spqcds;
+ if (context.mainHeader) {
+ context.QCC[cqcc] = qcc;
+ } else {
+ context.currentTile.QCC[cqcc] = qcc;
+ }
+ break;
+ case 0xFF52: // Coding style default (COD)
+ length = readUint16(data, position);
+ var cod = {};
+ j = position + 2;
+ var scod = data[j++];
+ cod.entropyCoderWithCustomPrecincts = !!(scod & 1);
+ cod.sopMarkerUsed = !!(scod & 2);
+ cod.ephMarkerUsed = !!(scod & 4);
+ cod.progressionOrder = data[j++];
+ cod.layersCount = readUint16(data, j);
+ j += 2;
+ cod.multipleComponentTransform = data[j++];
+
+ cod.decompositionLevelsCount = data[j++];
+ cod.xcb = (data[j++] & 0xF) + 2;
+ cod.ycb = (data[j++] & 0xF) + 2;
+ var blockStyle = data[j++];
+ cod.selectiveArithmeticCodingBypass = !!(blockStyle & 1);
+ cod.resetContextProbabilities = !!(blockStyle & 2);
+ cod.terminationOnEachCodingPass = !!(blockStyle & 4);
+ cod.verticalyStripe = !!(blockStyle & 8);
+ cod.predictableTermination = !!(blockStyle & 16);
+ cod.segmentationSymbolUsed = !!(blockStyle & 32);
+ cod.reversibleTransformation = data[j++];
+ if (cod.entropyCoderWithCustomPrecincts) {
+ var precinctsSizes = [];
+ while (j < length + position) {
+ var precinctsSize = data[j++];
+ precinctsSizes.push({
+ PPx: precinctsSize & 0xF,
+ PPy: precinctsSize >> 4
+ });
+ }
+ cod.precinctsSizes = precinctsSizes;
+ }
+ var unsupported = [];
+ if (cod.selectiveArithmeticCodingBypass) {
+ unsupported.push('selectiveArithmeticCodingBypass');
+ }
+ if (cod.resetContextProbabilities) {
+ unsupported.push('resetContextProbabilities');
+ }
+ if (cod.terminationOnEachCodingPass) {
+ unsupported.push('terminationOnEachCodingPass');
+ }
+ if (cod.verticalyStripe) {
+ unsupported.push('verticalyStripe');
+ }
+ if (cod.predictableTermination) {
+ unsupported.push('predictableTermination');
+ }
+ if (unsupported.length > 0) {
+ doNotRecover = true;
+ throw new Error('JPX Error: Unsupported COD options (' +
+ unsupported.join(', ') + ')');
+ }
+ if (context.mainHeader) {
+ context.COD = cod;
+ } else {
+ context.currentTile.COD = cod;
+ context.currentTile.COC = [];
+ }
+ break;
+ case 0xFF90: // Start of tile-part (SOT)
+ length = readUint16(data, position);
+ tile = {};
+ tile.index = readUint16(data, position + 2);
+ tile.length = readUint32(data, position + 4);
+ tile.dataEnd = tile.length + position - 2;
+ tile.partIndex = data[position + 8];
+ tile.partsCount = data[position + 9];
+
+ context.mainHeader = false;
+ if (tile.partIndex === 0) {
+ // reset component specific settings
+ tile.COD = context.COD;
+ tile.COC = context.COC.slice(0); // clone of the global COC
+ tile.QCD = context.QCD;
+ tile.QCC = context.QCC.slice(0); // clone of the global COC
+ }
+ context.currentTile = tile;
+ break;
+ case 0xFF93: // Start of data (SOD)
+ tile = context.currentTile;
+ if (tile.partIndex === 0) {
+ initializeTile(context, tile.index);
+ buildPackets(context);
+ }
+
+ // moving to the end of the data
+ length = tile.dataEnd - position;
+ parseTilePackets(context, data, position, length);
+ break;
+ case 0xFF55: // Tile-part lengths, main header (TLM)
+ case 0xFF57: // Packet length, main header (PLM)
+ case 0xFF58: // Packet length, tile-part header (PLT)
+ case 0xFF64: // Comment (COM)
+ length = readUint16(data, position);
+ // skipping content
+ break;
+ case 0xFF53: // Coding style component (COC)
+ throw new Error('JPX Error: Codestream code 0xFF53 (COC) is ' +
+ 'not implemented');
+ default:
+ throw new Error('JPX Error: Unknown codestream code: ' +
+ code.toString(16));
+ }
+ position += length;
+ }
+ } catch (e) {
+ if (doNotRecover || this.failOnCorruptedImage) {
+ throw e;
+ } else {
+ warn('Trying to recover from ' + e.message);
+ }
+ }
+ this.tiles = transformComponents(context);
+ this.width = context.SIZ.Xsiz - context.SIZ.XOsiz;
+ this.height = context.SIZ.Ysiz - context.SIZ.YOsiz;
+ this.componentsCount = context.SIZ.Csiz;
+ }
+ };
+ function calculateComponentDimensions(component, siz) {
+ // Section B.2 Component mapping
+ component.x0 = Math.ceil(siz.XOsiz / component.XRsiz);
+ component.x1 = Math.ceil(siz.Xsiz / component.XRsiz);
+ component.y0 = Math.ceil(siz.YOsiz / component.YRsiz);
+ component.y1 = Math.ceil(siz.Ysiz / component.YRsiz);
+ component.width = component.x1 - component.x0;
+ component.height = component.y1 - component.y0;
+ }
+ function calculateTileGrids(context, components) {
+ var siz = context.SIZ;
+ // Section B.3 Division into tile and tile-components
+ var tile, tiles = [];
+ var numXtiles = Math.ceil((siz.Xsiz - siz.XTOsiz) / siz.XTsiz);
+ var numYtiles = Math.ceil((siz.Ysiz - siz.YTOsiz) / siz.YTsiz);
+ for (var q = 0; q < numYtiles; q++) {
+ for (var p = 0; p < numXtiles; p++) {
+ tile = {};
+ tile.tx0 = Math.max(siz.XTOsiz + p * siz.XTsiz, siz.XOsiz);
+ tile.ty0 = Math.max(siz.YTOsiz + q * siz.YTsiz, siz.YOsiz);
+ tile.tx1 = Math.min(siz.XTOsiz + (p + 1) * siz.XTsiz, siz.Xsiz);
+ tile.ty1 = Math.min(siz.YTOsiz + (q + 1) * siz.YTsiz, siz.Ysiz);
+ tile.width = tile.tx1 - tile.tx0;
+ tile.height = tile.ty1 - tile.ty0;
+ tile.components = [];
+ tiles.push(tile);
+ }
+ }
+ context.tiles = tiles;
+
+ var componentsCount = siz.Csiz;
+ for (var i = 0, ii = componentsCount; i < ii; i++) {
+ var component = components[i];
+ for (var j = 0, jj = tiles.length; j < jj; j++) {
+ var tileComponent = {};
+ tile = tiles[j];
+ tileComponent.tcx0 = Math.ceil(tile.tx0 / component.XRsiz);
+ tileComponent.tcy0 = Math.ceil(tile.ty0 / component.YRsiz);
+ tileComponent.tcx1 = Math.ceil(tile.tx1 / component.XRsiz);
+ tileComponent.tcy1 = Math.ceil(tile.ty1 / component.YRsiz);
+ tileComponent.width = tileComponent.tcx1 - tileComponent.tcx0;
+ tileComponent.height = tileComponent.tcy1 - tileComponent.tcy0;
+ tile.components[i] = tileComponent;
+ }
+ }
+ }
+ function getBlocksDimensions(context, component, r) {
+ var codOrCoc = component.codingStyleParameters;
+ var result = {};
+ if (!codOrCoc.entropyCoderWithCustomPrecincts) {
+ result.PPx = 15;
+ result.PPy = 15;
+ } else {
+ result.PPx = codOrCoc.precinctsSizes[r].PPx;
+ result.PPy = codOrCoc.precinctsSizes[r].PPy;
+ }
+ // calculate codeblock size as described in section B.7
+ result.xcb_ = (r > 0 ? Math.min(codOrCoc.xcb, result.PPx - 1) :
+ Math.min(codOrCoc.xcb, result.PPx));
+ result.ycb_ = (r > 0 ? Math.min(codOrCoc.ycb, result.PPy - 1) :
+ Math.min(codOrCoc.ycb, result.PPy));
+ return result;
+ }
+ function buildPrecincts(context, resolution, dimensions) {
+ // Section B.6 Division resolution to precincts
+ var precinctWidth = 1 << dimensions.PPx;
+ var precinctHeight = 1 << dimensions.PPy;
+ // Jasper introduces codeblock groups for mapping each subband codeblocks
+ // to precincts. Precinct partition divides a resolution according to width
+ // and height parameters. The subband that belongs to the resolution level
+ // has a different size than the level, unless it is the zero resolution.
+
+ // From Jasper documentation: jpeg2000.pdf, section K: Tier-2 coding:
+ // The precinct partitioning for a particular subband is derived from a
+ // partitioning of its parent LL band (i.e., the LL band at the next higher
+ // resolution level)... The LL band associated with each resolution level is
+ // divided into precincts... Each of the resulting precinct regions is then
+ // mapped into its child subbands (if any) at the next lower resolution
+ // level. This is accomplished by using the coordinate transformation
+ // (u, v) = (ceil(x/2), ceil(y/2)) where (x, y) and (u, v) are the
+ // coordinates of a point in the LL band and child subband, respectively.
+ var isZeroRes = resolution.resLevel === 0;
+ var precinctWidthInSubband = 1 << (dimensions.PPx + (isZeroRes ? 0 : -1));
+ var precinctHeightInSubband = 1 << (dimensions.PPy + (isZeroRes ? 0 : -1));
+ var numprecinctswide = (resolution.trx1 > resolution.trx0 ?
+ Math.ceil(resolution.trx1 / precinctWidth) -
+ Math.floor(resolution.trx0 / precinctWidth) : 0);
+ var numprecinctshigh = (resolution.try1 > resolution.try0 ?
+ Math.ceil(resolution.try1 / precinctHeight) -
+ Math.floor(resolution.try0 / precinctHeight) : 0);
+ var numprecincts = numprecinctswide * numprecinctshigh;
+
+ resolution.precinctParameters = {
+ precinctWidth: precinctWidth,
+ precinctHeight: precinctHeight,
+ numprecinctswide: numprecinctswide,
+ numprecinctshigh: numprecinctshigh,
+ numprecincts: numprecincts,
+ precinctWidthInSubband: precinctWidthInSubband,
+ precinctHeightInSubband: precinctHeightInSubband
+ };
+ }
+ function buildCodeblocks(context, subband, dimensions) {
+ // Section B.7 Division sub-band into code-blocks
+ var xcb_ = dimensions.xcb_;
+ var ycb_ = dimensions.ycb_;
+ var codeblockWidth = 1 << xcb_;
+ var codeblockHeight = 1 << ycb_;
+ var cbx0 = subband.tbx0 >> xcb_;
+ var cby0 = subband.tby0 >> ycb_;
+ var cbx1 = (subband.tbx1 + codeblockWidth - 1) >> xcb_;
+ var cby1 = (subband.tby1 + codeblockHeight - 1) >> ycb_;
+ var precinctParameters = subband.resolution.precinctParameters;
+ var codeblocks = [];
+ var precincts = [];
+ var i, j, codeblock, precinctNumber;
+ for (j = cby0; j < cby1; j++) {
+ for (i = cbx0; i < cbx1; i++) {
+ codeblock = {
+ cbx: i,
+ cby: j,
+ tbx0: codeblockWidth * i,
+ tby0: codeblockHeight * j,
+ tbx1: codeblockWidth * (i + 1),
+ tby1: codeblockHeight * (j + 1)
+ };
+
+ codeblock.tbx0_ = Math.max(subband.tbx0, codeblock.tbx0);
+ codeblock.tby0_ = Math.max(subband.tby0, codeblock.tby0);
+ codeblock.tbx1_ = Math.min(subband.tbx1, codeblock.tbx1);
+ codeblock.tby1_ = Math.min(subband.tby1, codeblock.tby1);
+
+ // Calculate precinct number for this codeblock, codeblock position
+ // should be relative to its subband, use actual dimension and position
+ // See comment about codeblock group width and height
+ var pi = Math.floor((codeblock.tbx0_ - subband.tbx0) /
+ precinctParameters.precinctWidthInSubband);
+ var pj = Math.floor((codeblock.tby0_ - subband.tby0) /
+ precinctParameters.precinctHeightInSubband);
+ precinctNumber = pi + (pj * precinctParameters.numprecinctswide);
+
+ codeblock.precinctNumber = precinctNumber;
+ codeblock.subbandType = subband.type;
+ codeblock.Lblock = 3;
+
+ if (codeblock.tbx1_ <= codeblock.tbx0_ ||
+ codeblock.tby1_ <= codeblock.tby0_) {
+ continue;
+ }
+ codeblocks.push(codeblock);
+ // building precinct for the sub-band
+ var precinct = precincts[precinctNumber];
+ if (precinct !== undefined) {
+ if (i < precinct.cbxMin) {
+ precinct.cbxMin = i;
+ } else if (i > precinct.cbxMax) {
+ precinct.cbxMax = i;
+ }
+ if (j < precinct.cbyMin) {
+ precinct.cbxMin = j;
+ } else if (j > precinct.cbyMax) {
+ precinct.cbyMax = j;
+ }
+ } else {
+ precincts[precinctNumber] = precinct = {
+ cbxMin: i,
+ cbyMin: j,
+ cbxMax: i,
+ cbyMax: j
+ };
+ }
+ codeblock.precinct = precinct;
+ }
+ }
+ subband.codeblockParameters = {
+ codeblockWidth: xcb_,
+ codeblockHeight: ycb_,
+ numcodeblockwide: cbx1 - cbx0 + 1,
+ numcodeblockhigh: cby1 - cby0 + 1
+ };
+ subband.codeblocks = codeblocks;
+ subband.precincts = precincts;
+ }
+ function createPacket(resolution, precinctNumber, layerNumber) {
+ var precinctCodeblocks = [];
+ // Section B.10.8 Order of info in packet
+ var subbands = resolution.subbands;
+ // sub-bands already ordered in 'LL', 'HL', 'LH', and 'HH' sequence
+ for (var i = 0, ii = subbands.length; i < ii; i++) {
+ var subband = subbands[i];
+ var codeblocks = subband.codeblocks;
+ for (var j = 0, jj = codeblocks.length; j < jj; j++) {
+ var codeblock = codeblocks[j];
+ if (codeblock.precinctNumber !== precinctNumber) {
+ continue;
+ }
+ precinctCodeblocks.push(codeblock);
+ }
+ }
+ return {
+ layerNumber: layerNumber,
+ codeblocks: precinctCodeblocks
+ };
+ }
+ function LayerResolutionComponentPositionIterator(context) {
+ var siz = context.SIZ;
+ var tileIndex = context.currentTile.index;
+ var tile = context.tiles[tileIndex];
+ var layersCount = tile.codingStyleDefaultParameters.layersCount;
+ var componentsCount = siz.Csiz;
+ var maxDecompositionLevelsCount = 0;
+ for (var q = 0; q < componentsCount; q++) {
+ maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount,
+ tile.components[q].codingStyleParameters.decompositionLevelsCount);
+ }
+
+ var l = 0, r = 0, i = 0, k = 0;
+
+ this.nextPacket = function JpxImage_nextPacket() {
+ // Section B.12.1.1 Layer-resolution-component-position
+ for (; l < layersCount; l++) {
+ for (; r <= maxDecompositionLevelsCount; r++) {
+ for (; i < componentsCount; i++) {
+ var component = tile.components[i];
+ if (r > component.codingStyleParameters.decompositionLevelsCount) {
+ continue;
+ }
+
+ var resolution = component.resolutions[r];
+ var numprecincts = resolution.precinctParameters.numprecincts;
+ for (; k < numprecincts;) {
+ var packet = createPacket(resolution, k, l);
+ k++;
+ return packet;
+ }
+ k = 0;
+ }
+ i = 0;
+ }
+ r = 0;
+ }
+ throw new Error('JPX Error: Out of packets');
+ };
+ }
+ function ResolutionLayerComponentPositionIterator(context) {
+ var siz = context.SIZ;
+ var tileIndex = context.currentTile.index;
+ var tile = context.tiles[tileIndex];
+ var layersCount = tile.codingStyleDefaultParameters.layersCount;
+ var componentsCount = siz.Csiz;
+ var maxDecompositionLevelsCount = 0;
+ for (var q = 0; q < componentsCount; q++) {
+ maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount,
+ tile.components[q].codingStyleParameters.decompositionLevelsCount);
+ }
+
+ var r = 0, l = 0, i = 0, k = 0;
+
+ this.nextPacket = function JpxImage_nextPacket() {
+ // Section B.12.1.2 Resolution-layer-component-position
+ for (; r <= maxDecompositionLevelsCount; r++) {
+ for (; l < layersCount; l++) {
+ for (; i < componentsCount; i++) {
+ var component = tile.components[i];
+ if (r > component.codingStyleParameters.decompositionLevelsCount) {
+ continue;
+ }
+
+ var resolution = component.resolutions[r];
+ var numprecincts = resolution.precinctParameters.numprecincts;
+ for (; k < numprecincts;) {
+ var packet = createPacket(resolution, k, l);
+ k++;
+ return packet;
+ }
+ k = 0;
+ }
+ i = 0;
+ }
+ l = 0;
+ }
+ throw new Error('JPX Error: Out of packets');
+ };
+ }
+ function ResolutionPositionComponentLayerIterator(context) {
+ var siz = context.SIZ;
+ var tileIndex = context.currentTile.index;
+ var tile = context.tiles[tileIndex];
+ var layersCount = tile.codingStyleDefaultParameters.layersCount;
+ var componentsCount = siz.Csiz;
+ var l, r, c, p;
+ var maxDecompositionLevelsCount = 0;
+ for (c = 0; c < componentsCount; c++) {
+ var component = tile.components[c];
+ maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount,
+ component.codingStyleParameters.decompositionLevelsCount);
+ }
+ var maxNumPrecinctsInLevel = new Int32Array(
+ maxDecompositionLevelsCount + 1);
+ for (r = 0; r <= maxDecompositionLevelsCount; ++r) {
+ var maxNumPrecincts = 0;
+ for (c = 0; c < componentsCount; ++c) {
+ var resolutions = tile.components[c].resolutions;
+ if (r < resolutions.length) {
+ maxNumPrecincts = Math.max(maxNumPrecincts,
+ resolutions[r].precinctParameters.numprecincts);
+ }
+ }
+ maxNumPrecinctsInLevel[r] = maxNumPrecincts;
+ }
+ l = 0;
+ r = 0;
+ c = 0;
+ p = 0;
+
+ this.nextPacket = function JpxImage_nextPacket() {
+ // Section B.12.1.3 Resolution-position-component-layer
+ for (; r <= maxDecompositionLevelsCount; r++) {
+ for (; p < maxNumPrecinctsInLevel[r]; p++) {
+ for (; c < componentsCount; c++) {
+ var component = tile.components[c];
+ if (r > component.codingStyleParameters.decompositionLevelsCount) {
+ continue;
+ }
+ var resolution = component.resolutions[r];
+ var numprecincts = resolution.precinctParameters.numprecincts;
+ if (p >= numprecincts) {
+ continue;
+ }
+ for (; l < layersCount;) {
+ var packet = createPacket(resolution, p, l);
+ l++;
+ return packet;
+ }
+ l = 0;
+ }
+ c = 0;
+ }
+ p = 0;
+ }
+ throw new Error('JPX Error: Out of packets');
+ };
+ }
+ function PositionComponentResolutionLayerIterator(context) {
+ var siz = context.SIZ;
+ var tileIndex = context.currentTile.index;
+ var tile = context.tiles[tileIndex];
+ var layersCount = tile.codingStyleDefaultParameters.layersCount;
+ var componentsCount = siz.Csiz;
+ var precinctsSizes = getPrecinctSizesInImageScale(tile);
+ var precinctsIterationSizes = precinctsSizes;
+ var l = 0, r = 0, c = 0, px = 0, py = 0;
+
+ this.nextPacket = function JpxImage_nextPacket() {
+ // Section B.12.1.4 Position-component-resolution-layer
+ for (; py < precinctsIterationSizes.maxNumHigh; py++) {
+ for (; px < precinctsIterationSizes.maxNumWide; px++) {
+ for (; c < componentsCount; c++) {
+ var component = tile.components[c];
+ var decompositionLevelsCount =
+ component.codingStyleParameters.decompositionLevelsCount;
+ for (; r <= decompositionLevelsCount; r++) {
+ var resolution = component.resolutions[r];
+ var sizeInImageScale =
+ precinctsSizes.components[c].resolutions[r];
+ var k = getPrecinctIndexIfExist(
+ px,
+ py,
+ sizeInImageScale,
+ precinctsIterationSizes,
+ resolution);
+ if (k === null) {
+ continue;
+ }
+ for (; l < layersCount;) {
+ var packet = createPacket(resolution, k, l);
+ l++;
+ return packet;
+ }
+ l = 0;
+ }
+ r = 0;
+ }
+ c = 0;
+ }
+ px = 0;
+ }
+ throw new Error('JPX Error: Out of packets');
+ };
+ }
+ function ComponentPositionResolutionLayerIterator(context) {
+ var siz = context.SIZ;
+ var tileIndex = context.currentTile.index;
+ var tile = context.tiles[tileIndex];
+ var layersCount = tile.codingStyleDefaultParameters.layersCount;
+ var componentsCount = siz.Csiz;
+ var precinctsSizes = getPrecinctSizesInImageScale(tile);
+ var l = 0, r = 0, c = 0, px = 0, py = 0;
+
+ this.nextPacket = function JpxImage_nextPacket() {
+ // Section B.12.1.5 Component-position-resolution-layer
+ for (; c < componentsCount; ++c) {
+ var component = tile.components[c];
+ var precinctsIterationSizes = precinctsSizes.components[c];
+ var decompositionLevelsCount =
+ component.codingStyleParameters.decompositionLevelsCount;
+ for (; py < precinctsIterationSizes.maxNumHigh; py++) {
+ for (; px < precinctsIterationSizes.maxNumWide; px++) {
+ for (; r <= decompositionLevelsCount; r++) {
+ var resolution = component.resolutions[r];
+ var sizeInImageScale = precinctsIterationSizes.resolutions[r];
+ var k = getPrecinctIndexIfExist(
+ px,
+ py,
+ sizeInImageScale,
+ precinctsIterationSizes,
+ resolution);
+ if (k === null) {
+ continue;
+ }
+ for (; l < layersCount;) {
+ var packet = createPacket(resolution, k, l);
+ l++;
+ return packet;
+ }
+ l = 0;
+ }
+ r = 0;
+ }
+ px = 0;
+ }
+ py = 0;
+ }
+ throw new Error('JPX Error: Out of packets');
+ };
+ }
+ function getPrecinctIndexIfExist(
+ pxIndex, pyIndex, sizeInImageScale, precinctIterationSizes, resolution) {
+ var posX = pxIndex * precinctIterationSizes.minWidth;
+ var posY = pyIndex * precinctIterationSizes.minHeight;
+ if (posX % sizeInImageScale.width !== 0 ||
+ posY % sizeInImageScale.height !== 0) {
+ return null;
+ }
+ var startPrecinctRowIndex =
+ (posY / sizeInImageScale.width) *
+ resolution.precinctParameters.numprecinctswide;
+ return (posX / sizeInImageScale.height) + startPrecinctRowIndex;
+ }
+ function getPrecinctSizesInImageScale(tile) {
+ var componentsCount = tile.components.length;
+ var minWidth = Number.MAX_VALUE;
+ var minHeight = Number.MAX_VALUE;
+ var maxNumWide = 0;
+ var maxNumHigh = 0;
+ var sizePerComponent = new Array(componentsCount);
+ for (var c = 0; c < componentsCount; c++) {
+ var component = tile.components[c];
+ var decompositionLevelsCount =
+ component.codingStyleParameters.decompositionLevelsCount;
+ var sizePerResolution = new Array(decompositionLevelsCount + 1);
+ var minWidthCurrentComponent = Number.MAX_VALUE;
+ var minHeightCurrentComponent = Number.MAX_VALUE;
+ var maxNumWideCurrentComponent = 0;
+ var maxNumHighCurrentComponent = 0;
+ var scale = 1;
+ for (var r = decompositionLevelsCount; r >= 0; --r) {
+ var resolution = component.resolutions[r];
+ var widthCurrentResolution =
+ scale * resolution.precinctParameters.precinctWidth;
+ var heightCurrentResolution =
+ scale * resolution.precinctParameters.precinctHeight;
+ minWidthCurrentComponent = Math.min(
+ minWidthCurrentComponent,
+ widthCurrentResolution);
+ minHeightCurrentComponent = Math.min(
+ minHeightCurrentComponent,
+ heightCurrentResolution);
+ maxNumWideCurrentComponent = Math.max(maxNumWideCurrentComponent,
+ resolution.precinctParameters.numprecinctswide);
+ maxNumHighCurrentComponent = Math.max(maxNumHighCurrentComponent,
+ resolution.precinctParameters.numprecinctshigh);
+ sizePerResolution[r] = {
+ width: widthCurrentResolution,
+ height: heightCurrentResolution
+ };
+ scale <<= 1;
+ }
+ minWidth = Math.min(minWidth, minWidthCurrentComponent);
+ minHeight = Math.min(minHeight, minHeightCurrentComponent);
+ maxNumWide = Math.max(maxNumWide, maxNumWideCurrentComponent);
+ maxNumHigh = Math.max(maxNumHigh, maxNumHighCurrentComponent);
+ sizePerComponent[c] = {
+ resolutions: sizePerResolution,
+ minWidth: minWidthCurrentComponent,
+ minHeight: minHeightCurrentComponent,
+ maxNumWide: maxNumWideCurrentComponent,
+ maxNumHigh: maxNumHighCurrentComponent
+ };
+ }
+ return {
+ components: sizePerComponent,
+ minWidth: minWidth,
+ minHeight: minHeight,
+ maxNumWide: maxNumWide,
+ maxNumHigh: maxNumHigh
+ };
+ }
+ function buildPackets(context) {
+ var siz = context.SIZ;
+ var tileIndex = context.currentTile.index;
+ var tile = context.tiles[tileIndex];
+ var componentsCount = siz.Csiz;
+ // Creating resolutions and sub-bands for each component
+ for (var c = 0; c < componentsCount; c++) {
+ var component = tile.components[c];
+ var decompositionLevelsCount =
+ component.codingStyleParameters.decompositionLevelsCount;
+ // Section B.5 Resolution levels and sub-bands
+ var resolutions = [];
+ var subbands = [];
+ for (var r = 0; r <= decompositionLevelsCount; r++) {
+ var blocksDimensions = getBlocksDimensions(context, component, r);
+ var resolution = {};
+ var scale = 1 << (decompositionLevelsCount - r);
+ resolution.trx0 = Math.ceil(component.tcx0 / scale);
+ resolution.try0 = Math.ceil(component.tcy0 / scale);
+ resolution.trx1 = Math.ceil(component.tcx1 / scale);
+ resolution.try1 = Math.ceil(component.tcy1 / scale);
+ resolution.resLevel = r;
+ buildPrecincts(context, resolution, blocksDimensions);
+ resolutions.push(resolution);
+
+ var subband;
+ if (r === 0) {
+ // one sub-band (LL) with last decomposition
+ subband = {};
+ subband.type = 'LL';
+ subband.tbx0 = Math.ceil(component.tcx0 / scale);
+ subband.tby0 = Math.ceil(component.tcy0 / scale);
+ subband.tbx1 = Math.ceil(component.tcx1 / scale);
+ subband.tby1 = Math.ceil(component.tcy1 / scale);
+ subband.resolution = resolution;
+ buildCodeblocks(context, subband, blocksDimensions);
+ subbands.push(subband);
+ resolution.subbands = [subband];
+ } else {
+ var bscale = 1 << (decompositionLevelsCount - r + 1);
+ var resolutionSubbands = [];
+ // three sub-bands (HL, LH and HH) with rest of decompositions
+ subband = {};
+ subband.type = 'HL';
+ subband.tbx0 = Math.ceil(component.tcx0 / bscale - 0.5);
+ subband.tby0 = Math.ceil(component.tcy0 / bscale);
+ subband.tbx1 = Math.ceil(component.tcx1 / bscale - 0.5);
+ subband.tby1 = Math.ceil(component.tcy1 / bscale);
+ subband.resolution = resolution;
+ buildCodeblocks(context, subband, blocksDimensions);
+ subbands.push(subband);
+ resolutionSubbands.push(subband);
+
+ subband = {};
+ subband.type = 'LH';
+ subband.tbx0 = Math.ceil(component.tcx0 / bscale);
+ subband.tby0 = Math.ceil(component.tcy0 / bscale - 0.5);
+ subband.tbx1 = Math.ceil(component.tcx1 / bscale);
+ subband.tby1 = Math.ceil(component.tcy1 / bscale - 0.5);
+ subband.resolution = resolution;
+ buildCodeblocks(context, subband, blocksDimensions);
+ subbands.push(subband);
+ resolutionSubbands.push(subband);
+
+ subband = {};
+ subband.type = 'HH';
+ subband.tbx0 = Math.ceil(component.tcx0 / bscale - 0.5);
+ subband.tby0 = Math.ceil(component.tcy0 / bscale - 0.5);
+ subband.tbx1 = Math.ceil(component.tcx1 / bscale - 0.5);
+ subband.tby1 = Math.ceil(component.tcy1 / bscale - 0.5);
+ subband.resolution = resolution;
+ buildCodeblocks(context, subband, blocksDimensions);
+ subbands.push(subband);
+ resolutionSubbands.push(subband);
+
+ resolution.subbands = resolutionSubbands;
+ }
+ }
+ component.resolutions = resolutions;
+ component.subbands = subbands;
+ }
+ // Generate the packets sequence
+ var progressionOrder = tile.codingStyleDefaultParameters.progressionOrder;
+ switch (progressionOrder) {
+ case 0:
+ tile.packetsIterator =
+ new LayerResolutionComponentPositionIterator(context);
+ break;
+ case 1:
+ tile.packetsIterator =
+ new ResolutionLayerComponentPositionIterator(context);
+ break;
+ case 2:
+ tile.packetsIterator =
+ new ResolutionPositionComponentLayerIterator(context);
+ break;
+ case 3:
+ tile.packetsIterator =
+ new PositionComponentResolutionLayerIterator(context);
+ break;
+ case 4:
+ tile.packetsIterator =
+ new ComponentPositionResolutionLayerIterator(context);
+ break;
+ default:
+ throw new Error('JPX Error: Unsupported progression order ' +
+ progressionOrder);
+ }
+ }
+ function parseTilePackets(context, data, offset, dataLength) {
+ var position = 0;
+ var buffer, bufferSize = 0, skipNextBit = false;
+ function readBits(count) {
+ while (bufferSize < count) {
+ var b = data[offset + position];
+ position++;
+ if (skipNextBit) {
+ buffer = (buffer << 7) | b;
+ bufferSize += 7;
+ skipNextBit = false;
+ } else {
+ buffer = (buffer << 8) | b;
+ bufferSize += 8;
+ }
+ if (b === 0xFF) {
+ skipNextBit = true;
+ }
+ }
+ bufferSize -= count;
+ return (buffer >>> bufferSize) & ((1 << count) - 1);
+ }
+ function skipMarkerIfEqual(value) {
+ if (data[offset + position - 1] === 0xFF &&
+ data[offset + position] === value) {
+ skipBytes(1);
+ return true;
+ } else if (data[offset + position] === 0xFF &&
+ data[offset + position + 1] === value) {
+ skipBytes(2);
+ return true;
+ }
+ return false;
+ }
+ function skipBytes(count) {
+ position += count;
+ }
+ function alignToByte() {
+ bufferSize = 0;
+ if (skipNextBit) {
+ position++;
+ skipNextBit = false;
+ }
+ }
+ function readCodingpasses() {
+ if (readBits(1) === 0) {
+ return 1;
+ }
+ if (readBits(1) === 0) {
+ return 2;
+ }
+ var value = readBits(2);
+ if (value < 3) {
+ return value + 3;
+ }
+ value = readBits(5);
+ if (value < 31) {
+ return value + 6;
+ }
+ value = readBits(7);
+ return value + 37;
+ }
+ var tileIndex = context.currentTile.index;
+ var tile = context.tiles[tileIndex];
+ var sopMarkerUsed = context.COD.sopMarkerUsed;
+ var ephMarkerUsed = context.COD.ephMarkerUsed;
+ var packetsIterator = tile.packetsIterator;
+ while (position < dataLength) {
+ alignToByte();
+ if (sopMarkerUsed && skipMarkerIfEqual(0x91)) {
+ // Skip also marker segment length and packet sequence ID
+ skipBytes(4);
+ }
+ var packet = packetsIterator.nextPacket();
+ if (!readBits(1)) {
+ continue;
+ }
+ var layerNumber = packet.layerNumber;
+ var queue = [], codeblock;
+ for (var i = 0, ii = packet.codeblocks.length; i < ii; i++) {
+ codeblock = packet.codeblocks[i];
+ var precinct = codeblock.precinct;
+ var codeblockColumn = codeblock.cbx - precinct.cbxMin;
+ var codeblockRow = codeblock.cby - precinct.cbyMin;
+ var codeblockIncluded = false;
+ var firstTimeInclusion = false;
+ var valueReady;
+ if (codeblock['included'] !== undefined) {
+ codeblockIncluded = !!readBits(1);
+ } else {
+ // reading inclusion tree
+ precinct = codeblock.precinct;
+ var inclusionTree, zeroBitPlanesTree;
+ if (precinct['inclusionTree'] !== undefined) {
+ inclusionTree = precinct.inclusionTree;
+ } else {
+ // building inclusion and zero bit-planes trees
+ var width = precinct.cbxMax - precinct.cbxMin + 1;
+ var height = precinct.cbyMax - precinct.cbyMin + 1;
+ inclusionTree = new InclusionTree(width, height, layerNumber);
+ zeroBitPlanesTree = new TagTree(width, height);
+ precinct.inclusionTree = inclusionTree;
+ precinct.zeroBitPlanesTree = zeroBitPlanesTree;
+ }
+
+ if (inclusionTree.reset(codeblockColumn, codeblockRow, layerNumber)) {
+ while (true) {
+ if (readBits(1)) {
+ valueReady = !inclusionTree.nextLevel();
+ if (valueReady) {
+ codeblock.included = true;
+ codeblockIncluded = firstTimeInclusion = true;
+ break;
+ }
+ } else {
+ inclusionTree.incrementValue(layerNumber);
+ break;
+ }
+ }
+ }
+ }
+ if (!codeblockIncluded) {
+ continue;
+ }
+ if (firstTimeInclusion) {
+ zeroBitPlanesTree = precinct.zeroBitPlanesTree;
+ zeroBitPlanesTree.reset(codeblockColumn, codeblockRow);
+ while (true) {
+ if (readBits(1)) {
+ valueReady = !zeroBitPlanesTree.nextLevel();
+ if (valueReady) {
+ break;
+ }
+ } else {
+ zeroBitPlanesTree.incrementValue();
+ }
+ }
+ codeblock.zeroBitPlanes = zeroBitPlanesTree.value;
+ }
+ var codingpasses = readCodingpasses();
+ while (readBits(1)) {
+ codeblock.Lblock++;
+ }
+ var codingpassesLog2 = log2(codingpasses);
+ // rounding down log2
+ var bits = ((codingpasses < (1 << codingpassesLog2)) ?
+ codingpassesLog2 - 1 : codingpassesLog2) + codeblock.Lblock;
+ var codedDataLength = readBits(bits);
+ queue.push({
+ codeblock: codeblock,
+ codingpasses: codingpasses,
+ dataLength: codedDataLength
+ });
+ }
+ alignToByte();
+ if (ephMarkerUsed) {
+ skipMarkerIfEqual(0x92);
+ }
+ while (queue.length > 0) {
+ var packetItem = queue.shift();
+ codeblock = packetItem.codeblock;
+ if (codeblock['data'] === undefined) {
+ codeblock.data = [];
+ }
+ codeblock.data.push({
+ data: data,
+ start: offset + position,
+ end: offset + position + packetItem.dataLength,
+ codingpasses: packetItem.codingpasses
+ });
+ position += packetItem.dataLength;
+ }
+ }
+ return position;
+ }
+ function copyCoefficients(coefficients, levelWidth, levelHeight, subband,
+ delta, mb, reversible, segmentationSymbolUsed) {
+ var x0 = subband.tbx0;
+ var y0 = subband.tby0;
+ var width = subband.tbx1 - subband.tbx0;
+ var codeblocks = subband.codeblocks;
+ var right = subband.type.charAt(0) === 'H' ? 1 : 0;
+ var bottom = subband.type.charAt(1) === 'H' ? levelWidth : 0;
+
+ for (var i = 0, ii = codeblocks.length; i < ii; ++i) {
+ var codeblock = codeblocks[i];
+ var blockWidth = codeblock.tbx1_ - codeblock.tbx0_;
+ var blockHeight = codeblock.tby1_ - codeblock.tby0_;
+ if (blockWidth === 0 || blockHeight === 0) {
+ continue;
+ }
+ if (codeblock['data'] === undefined) {
+ continue;
+ }
+
+ var bitModel, currentCodingpassType;
+ bitModel = new BitModel(blockWidth, blockHeight, codeblock.subbandType,
+ codeblock.zeroBitPlanes, mb);
+ currentCodingpassType = 2; // first bit plane starts from cleanup
+
+ // collect data
+ var data = codeblock.data, totalLength = 0, codingpasses = 0;
+ var j, jj, dataItem;
+ for (j = 0, jj = data.length; j < jj; j++) {
+ dataItem = data[j];
+ totalLength += dataItem.end - dataItem.start;
+ codingpasses += dataItem.codingpasses;
+ }
+ var encodedData = new Uint8Array(totalLength);
+ var position = 0;
+ for (j = 0, jj = data.length; j < jj; j++) {
+ dataItem = data[j];
+ var chunk = dataItem.data.subarray(dataItem.start, dataItem.end);
+ encodedData.set(chunk, position);
+ position += chunk.length;
+ }
+ // decoding the item
+ var decoder = new ArithmeticDecoder(encodedData, 0, totalLength);
+ bitModel.setDecoder(decoder);
+
+ for (j = 0; j < codingpasses; j++) {
+ switch (currentCodingpassType) {
+ case 0:
+ bitModel.runSignificancePropogationPass();
+ break;
+ case 1:
+ bitModel.runMagnitudeRefinementPass();
+ break;
+ case 2:
+ bitModel.runCleanupPass();
+ if (segmentationSymbolUsed) {
+ bitModel.checkSegmentationSymbol();
+ }
+ break;
+ }
+ currentCodingpassType = (currentCodingpassType + 1) % 3;
+ }
+
+ var offset = (codeblock.tbx0_ - x0) + (codeblock.tby0_ - y0) * width;
+ var sign = bitModel.coefficentsSign;
+ var magnitude = bitModel.coefficentsMagnitude;
+ var bitsDecoded = bitModel.bitsDecoded;
+ var magnitudeCorrection = reversible ? 0 : 0.5;
+ var k, n, nb;
+ position = 0;
+ // Do the interleaving of Section F.3.3 here, so we do not need
+ // to copy later. LL level is not interleaved, just copied.
+ var interleave = (subband.type !== 'LL');
+ for (j = 0; j < blockHeight; j++) {
+ var row = (offset / width) | 0; // row in the non-interleaved subband
+ var levelOffset = 2 * row * (levelWidth - width) + right + bottom;
+ for (k = 0; k < blockWidth; k++) {
+ n = magnitude[position];
+ if (n !== 0) {
+ n = (n + magnitudeCorrection) * delta;
+ if (sign[position] !== 0) {
+ n = -n;
+ }
+ nb = bitsDecoded[position];
+ var pos = interleave ? (levelOffset + (offset << 1)) : offset;
+ if (reversible && (nb >= mb)) {
+ coefficients[pos] = n;
+ } else {
+ coefficients[pos] = n * (1 << (mb - nb));
+ }
+ }
+ offset++;
+ position++;
+ }
+ offset += width - blockWidth;
+ }
+ }
+ }
+ function transformTile(context, tile, c) {
+ var component = tile.components[c];
+ var codingStyleParameters = component.codingStyleParameters;
+ var quantizationParameters = component.quantizationParameters;
+ var decompositionLevelsCount =
+ codingStyleParameters.decompositionLevelsCount;
+ var spqcds = quantizationParameters.SPqcds;
+ var scalarExpounded = quantizationParameters.scalarExpounded;
+ var guardBits = quantizationParameters.guardBits;
+ var segmentationSymbolUsed = codingStyleParameters.segmentationSymbolUsed;
+ var precision = context.components[c].precision;
+
+ var reversible = codingStyleParameters.reversibleTransformation;
+ var transform = (reversible ? new ReversibleTransform() :
+ new IrreversibleTransform());
+
+ var subbandCoefficients = [];
+ var b = 0;
+ for (var i = 0; i <= decompositionLevelsCount; i++) {
+ var resolution = component.resolutions[i];
+
+ var width = resolution.trx1 - resolution.trx0;
+ var height = resolution.try1 - resolution.try0;
+ // Allocate space for the whole sublevel.
+ var coefficients = new Float32Array(width * height);
+
+ for (var j = 0, jj = resolution.subbands.length; j < jj; j++) {
+ var mu, epsilon;
+ if (!scalarExpounded) {
+ // formula E-5
+ mu = spqcds[0].mu;
+ epsilon = spqcds[0].epsilon + (i > 0 ? 1 - i : 0);
+ } else {
+ mu = spqcds[b].mu;
+ epsilon = spqcds[b].epsilon;
+ b++;
+ }
+
+ var subband = resolution.subbands[j];
+ var gainLog2 = SubbandsGainLog2[subband.type];
+
+ // calulate quantization coefficient (Section E.1.1.1)
+ var delta = (reversible ? 1 :
+ Math.pow(2, precision + gainLog2 - epsilon) * (1 + mu / 2048));
+ var mb = (guardBits + epsilon - 1);
+
+ // In the first resolution level, copyCoefficients will fill the
+ // whole array with coefficients. In the succeding passes,
+ // copyCoefficients will consecutively fill in the values that belong
+ // to the interleaved positions of the HL, LH, and HH coefficients.
+ // The LL coefficients will then be interleaved in Transform.iterate().
+ copyCoefficients(coefficients, width, height, subband, delta, mb,
+ reversible, segmentationSymbolUsed);
+ }
+ subbandCoefficients.push({
+ width: width,
+ height: height,
+ items: coefficients
+ });
+ }
+
+ var result = transform.calculate(subbandCoefficients,
+ component.tcx0, component.tcy0);
+ return {
+ left: component.tcx0,
+ top: component.tcy0,
+ width: result.width,
+ height: result.height,
+ items: result.items
+ };
+ }
+ function transformComponents(context) {
+ var siz = context.SIZ;
+ var components = context.components;
+ var componentsCount = siz.Csiz;
+ var resultImages = [];
+ for (var i = 0, ii = context.tiles.length; i < ii; i++) {
+ var tile = context.tiles[i];
+ var transformedTiles = [];
+ var c;
+ for (c = 0; c < componentsCount; c++) {
+ transformedTiles[c] = transformTile(context, tile, c);
+ }
+ var tile0 = transformedTiles[0];
+ var out = new Uint8Array(tile0.items.length * componentsCount);
+ var result = {
+ left: tile0.left,
+ top: tile0.top,
+ width: tile0.width,
+ height: tile0.height,
+ items: out
+ };
+
+ // Section G.2.2 Inverse multi component transform
+ var shift, offset, max, min, maxK;
+ var pos = 0, j, jj, y0, y1, y2, r, g, b, k, val;
+ if (tile.codingStyleDefaultParameters.multipleComponentTransform) {
+ var fourComponents = componentsCount === 4;
+ var y0items = transformedTiles[0].items;
+ var y1items = transformedTiles[1].items;
+ var y2items = transformedTiles[2].items;
+ var y3items = fourComponents ? transformedTiles[3].items : null;
+
+ // HACK: The multiple component transform formulas below assume that
+ // all components have the same precision. With this in mind, we
+ // compute shift and offset only once.
+ shift = components[0].precision - 8;
+ offset = (128 << shift) + 0.5;
+ max = 255 * (1 << shift);
+ maxK = max * 0.5;
+ min = -maxK;
+
+ var component0 = tile.components[0];
+ var alpha01 = componentsCount - 3;
+ jj = y0items.length;
+ if (!component0.codingStyleParameters.reversibleTransformation) {
+ // inverse irreversible multiple component transform
+ for (j = 0; j < jj; j++, pos += alpha01) {
+ y0 = y0items[j] + offset;
+ y1 = y1items[j];
+ y2 = y2items[j];
+ r = y0 + 1.402 * y2;
+ g = y0 - 0.34413 * y1 - 0.71414 * y2;
+ b = y0 + 1.772 * y1;
+ out[pos++] = r <= 0 ? 0 : r >= max ? 255 : r >> shift;
+ out[pos++] = g <= 0 ? 0 : g >= max ? 255 : g >> shift;
+ out[pos++] = b <= 0 ? 0 : b >= max ? 255 : b >> shift;
+ }
+ } else {
+ // inverse reversible multiple component transform
+ for (j = 0; j < jj; j++, pos += alpha01) {
+ y0 = y0items[j] + offset;
+ y1 = y1items[j];
+ y2 = y2items[j];
+ g = y0 - ((y2 + y1) >> 2);
+ r = g + y2;
+ b = g + y1;
+ out[pos++] = r <= 0 ? 0 : r >= max ? 255 : r >> shift;
+ out[pos++] = g <= 0 ? 0 : g >= max ? 255 : g >> shift;
+ out[pos++] = b <= 0 ? 0 : b >= max ? 255 : b >> shift;
+ }
+ }
+ if (fourComponents) {
+ for (j = 0, pos = 3; j < jj; j++, pos += 4) {
+ k = y3items[j];
+ out[pos] = k <= min ? 0 : k >= maxK ? 255 : (k + offset) >> shift;
+ }
+ }
+ } else { // no multi-component transform
+ for (c = 0; c < componentsCount; c++) {
+ var items = transformedTiles[c].items;
+ shift = components[c].precision - 8;
+ offset = (128 << shift) + 0.5;
+ max = (127.5 * (1 << shift));
+ min = -max;
+ for (pos = c, j = 0, jj = items.length; j < jj; j++) {
+ val = items[j];
+ out[pos] = val <= min ? 0 :
+ val >= max ? 255 : (val + offset) >> shift;
+ pos += componentsCount;
+ }
+ }
+ }
+ resultImages.push(result);
+ }
+ return resultImages;
+ }
+ function initializeTile(context, tileIndex) {
+ var siz = context.SIZ;
+ var componentsCount = siz.Csiz;
+ var tile = context.tiles[tileIndex];
+ for (var c = 0; c < componentsCount; c++) {
+ var component = tile.components[c];
+ var qcdOrQcc = (context.currentTile.QCC[c] !== undefined ?
+ context.currentTile.QCC[c] : context.currentTile.QCD);
+ component.quantizationParameters = qcdOrQcc;
+ var codOrCoc = (context.currentTile.COC[c] !== undefined ?
+ context.currentTile.COC[c] : context.currentTile.COD);
+ component.codingStyleParameters = codOrCoc;
+ }
+ tile.codingStyleDefaultParameters = context.currentTile.COD;
+ }
+
+ // Section B.10.2 Tag trees
+ var TagTree = (function TagTreeClosure() {
+ function TagTree(width, height) {
+ var levelsLength = log2(Math.max(width, height)) + 1;
+ this.levels = [];
+ for (var i = 0; i < levelsLength; i++) {
+ var level = {
+ width: width,
+ height: height,
+ items: []
+ };
+ this.levels.push(level);
+ width = Math.ceil(width / 2);
+ height = Math.ceil(height / 2);
+ }
+ }
+ TagTree.prototype = {
+ reset: function TagTree_reset(i, j) {
+ var currentLevel = 0, value = 0, level;
+ while (currentLevel < this.levels.length) {
+ level = this.levels[currentLevel];
+ var index = i + j * level.width;
+ if (level.items[index] !== undefined) {
+ value = level.items[index];
+ break;
+ }
+ level.index = index;
+ i >>= 1;
+ j >>= 1;
+ currentLevel++;
+ }
+ currentLevel--;
+ level = this.levels[currentLevel];
+ level.items[level.index] = value;
+ this.currentLevel = currentLevel;
+ delete this.value;
+ },
+ incrementValue: function TagTree_incrementValue() {
+ var level = this.levels[this.currentLevel];
+ level.items[level.index]++;
+ },
+ nextLevel: function TagTree_nextLevel() {
+ var currentLevel = this.currentLevel;
+ var level = this.levels[currentLevel];
+ var value = level.items[level.index];
+ currentLevel--;
+ if (currentLevel < 0) {
+ this.value = value;
+ return false;
+ }
+
+ this.currentLevel = currentLevel;
+ level = this.levels[currentLevel];
+ level.items[level.index] = value;
+ return true;
+ }
+ };
+ return TagTree;
+ })();
+
+ var InclusionTree = (function InclusionTreeClosure() {
+ function InclusionTree(width, height, defaultValue) {
+ var levelsLength = log2(Math.max(width, height)) + 1;
+ this.levels = [];
+ for (var i = 0; i < levelsLength; i++) {
+ var items = new Uint8Array(width * height);
+ for (var j = 0, jj = items.length; j < jj; j++) {
+ items[j] = defaultValue;
+ }
+
+ var level = {
+ width: width,
+ height: height,
+ items: items
+ };
+ this.levels.push(level);
+
+ width = Math.ceil(width / 2);
+ height = Math.ceil(height / 2);
+ }
+ }
+ InclusionTree.prototype = {
+ reset: function InclusionTree_reset(i, j, stopValue) {
+ var currentLevel = 0;
+ while (currentLevel < this.levels.length) {
+ var level = this.levels[currentLevel];
+ var index = i + j * level.width;
+ level.index = index;
+ var value = level.items[index];
+
+ if (value === 0xFF) {
+ break;
+ }
+
+ if (value > stopValue) {
+ this.currentLevel = currentLevel;
+ // already know about this one, propagating the value to top levels
+ this.propagateValues();
+ return false;
+ }
+
+ i >>= 1;
+ j >>= 1;
+ currentLevel++;
+ }
+ this.currentLevel = currentLevel - 1;
+ return true;
+ },
+ incrementValue: function InclusionTree_incrementValue(stopValue) {
+ var level = this.levels[this.currentLevel];
+ level.items[level.index] = stopValue + 1;
+ this.propagateValues();
+ },
+ propagateValues: function InclusionTree_propagateValues() {
+ var levelIndex = this.currentLevel;
+ var level = this.levels[levelIndex];
+ var currentValue = level.items[level.index];
+ while (--levelIndex >= 0) {
+ level = this.levels[levelIndex];
+ level.items[level.index] = currentValue;
+ }
+ },
+ nextLevel: function InclusionTree_nextLevel() {
+ var currentLevel = this.currentLevel;
+ var level = this.levels[currentLevel];
+ var value = level.items[level.index];
+ level.items[level.index] = 0xFF;
+ currentLevel--;
+ if (currentLevel < 0) {
+ return false;
+ }
+
+ this.currentLevel = currentLevel;
+ level = this.levels[currentLevel];
+ level.items[level.index] = value;
+ return true;
+ }
+ };
+ return InclusionTree;
+ })();
+
+ // Section D. Coefficient bit modeling
+ var BitModel = (function BitModelClosure() {
+ var UNIFORM_CONTEXT = 17;
+ var RUNLENGTH_CONTEXT = 18;
+ // Table D-1
+ // The index is binary presentation: 0dddvvhh, ddd - sum of Di (0..4),
+ // vv - sum of Vi (0..2), and hh - sum of Hi (0..2)
+ var LLAndLHContextsLabel = new Uint8Array([
+ 0, 5, 8, 0, 3, 7, 8, 0, 4, 7, 8, 0, 0, 0, 0, 0, 1, 6, 8, 0, 3, 7, 8, 0, 4,
+ 7, 8, 0, 0, 0, 0, 0, 2, 6, 8, 0, 3, 7, 8, 0, 4, 7, 8, 0, 0, 0, 0, 0, 2, 6,
+ 8, 0, 3, 7, 8, 0, 4, 7, 8, 0, 0, 0, 0, 0, 2, 6, 8, 0, 3, 7, 8, 0, 4, 7, 8
+ ]);
+ var HLContextLabel = new Uint8Array([
+ 0, 3, 4, 0, 5, 7, 7, 0, 8, 8, 8, 0, 0, 0, 0, 0, 1, 3, 4, 0, 6, 7, 7, 0, 8,
+ 8, 8, 0, 0, 0, 0, 0, 2, 3, 4, 0, 6, 7, 7, 0, 8, 8, 8, 0, 0, 0, 0, 0, 2, 3,
+ 4, 0, 6, 7, 7, 0, 8, 8, 8, 0, 0, 0, 0, 0, 2, 3, 4, 0, 6, 7, 7, 0, 8, 8, 8
+ ]);
+ var HHContextLabel = new Uint8Array([
+ 0, 1, 2, 0, 1, 2, 2, 0, 2, 2, 2, 0, 0, 0, 0, 0, 3, 4, 5, 0, 4, 5, 5, 0, 5,
+ 5, 5, 0, 0, 0, 0, 0, 6, 7, 7, 0, 7, 7, 7, 0, 7, 7, 7, 0, 0, 0, 0, 0, 8, 8,
+ 8, 0, 8, 8, 8, 0, 8, 8, 8, 0, 0, 0, 0, 0, 8, 8, 8, 0, 8, 8, 8, 0, 8, 8, 8
+ ]);
+
+ function BitModel(width, height, subband, zeroBitPlanes, mb) {
+ this.width = width;
+ this.height = height;
+
+ this.contextLabelTable = (subband === 'HH' ? HHContextLabel :
+ (subband === 'HL' ? HLContextLabel : LLAndLHContextsLabel));
+
+ var coefficientCount = width * height;
+
+ // coefficients outside the encoding region treated as insignificant
+ // add border state cells for significanceState
+ this.neighborsSignificance = new Uint8Array(coefficientCount);
+ this.coefficentsSign = new Uint8Array(coefficientCount);
+ this.coefficentsMagnitude = mb > 14 ? new Uint32Array(coefficientCount) :
+ mb > 6 ? new Uint16Array(coefficientCount) :
+ new Uint8Array(coefficientCount);
+ this.processingFlags = new Uint8Array(coefficientCount);
+
+ var bitsDecoded = new Uint8Array(coefficientCount);
+ if (zeroBitPlanes !== 0) {
+ for (var i = 0; i < coefficientCount; i++) {
+ bitsDecoded[i] = zeroBitPlanes;
+ }
+ }
+ this.bitsDecoded = bitsDecoded;
+
+ this.reset();
+ }
+
+ BitModel.prototype = {
+ setDecoder: function BitModel_setDecoder(decoder) {
+ this.decoder = decoder;
+ },
+ reset: function BitModel_reset() {
+ // We have 17 contexts that are accessed via context labels,
+ // plus the uniform and runlength context.
+ this.contexts = new Int8Array(19);
+
+ // Contexts are packed into 1 byte:
+ // highest 7 bits carry the index, lowest bit carries mps
+ this.contexts[0] = (4 << 1) | 0;
+ this.contexts[UNIFORM_CONTEXT] = (46 << 1) | 0;
+ this.contexts[RUNLENGTH_CONTEXT] = (3 << 1) | 0;
+ },
+ setNeighborsSignificance:
+ function BitModel_setNeighborsSignificance(row, column, index) {
+ var neighborsSignificance = this.neighborsSignificance;
+ var width = this.width, height = this.height;
+ var left = (column > 0);
+ var right = (column + 1 < width);
+ var i;
+
+ if (row > 0) {
+ i = index - width;
+ if (left) {
+ neighborsSignificance[i - 1] += 0x10;
+ }
+ if (right) {
+ neighborsSignificance[i + 1] += 0x10;
+ }
+ neighborsSignificance[i] += 0x04;
+ }
+
+ if (row + 1 < height) {
+ i = index + width;
+ if (left) {
+ neighborsSignificance[i - 1] += 0x10;
+ }
+ if (right) {
+ neighborsSignificance[i + 1] += 0x10;
+ }
+ neighborsSignificance[i] += 0x04;
+ }
+
+ if (left) {
+ neighborsSignificance[index - 1] += 0x01;
+ }
+ if (right) {
+ neighborsSignificance[index + 1] += 0x01;
+ }
+ neighborsSignificance[index] |= 0x80;
+ },
+ runSignificancePropogationPass:
+ function BitModel_runSignificancePropogationPass() {
+ var decoder = this.decoder;
+ var width = this.width, height = this.height;
+ var coefficentsMagnitude = this.coefficentsMagnitude;
+ var coefficentsSign = this.coefficentsSign;
+ var neighborsSignificance = this.neighborsSignificance;
+ var processingFlags = this.processingFlags;
+ var contexts = this.contexts;
+ var labels = this.contextLabelTable;
+ var bitsDecoded = this.bitsDecoded;
+ var processedInverseMask = ~1;
+ var processedMask = 1;
+ var firstMagnitudeBitMask = 2;
+
+ for (var i0 = 0; i0 < height; i0 += 4) {
+ for (var j = 0; j < width; j++) {
+ var index = i0 * width + j;
+ for (var i1 = 0; i1 < 4; i1++, index += width) {
+ var i = i0 + i1;
+ if (i >= height) {
+ break;
+ }
+ // clear processed flag first
+ processingFlags[index] &= processedInverseMask;
+
+ if (coefficentsMagnitude[index] ||
+ !neighborsSignificance[index]) {
+ continue;
+ }
+
+ var contextLabel = labels[neighborsSignificance[index]];
+ var decision = decoder.readBit(contexts, contextLabel);
+ if (decision) {
+ var sign = this.decodeSignBit(i, j, index);
+ coefficentsSign[index] = sign;
+ coefficentsMagnitude[index] = 1;
+ this.setNeighborsSignificance(i, j, index);
+ processingFlags[index] |= firstMagnitudeBitMask;
+ }
+ bitsDecoded[index]++;
+ processingFlags[index] |= processedMask;
+ }
+ }
+ }
+ },
+ decodeSignBit: function BitModel_decodeSignBit(row, column, index) {
+ var width = this.width, height = this.height;
+ var coefficentsMagnitude = this.coefficentsMagnitude;
+ var coefficentsSign = this.coefficentsSign;
+ var contribution, sign0, sign1, significance1;
+ var contextLabel, decoded;
+
+ // calculate horizontal contribution
+ significance1 = (column > 0 && coefficentsMagnitude[index - 1] !== 0);
+ if (column + 1 < width && coefficentsMagnitude[index + 1] !== 0) {
+ sign1 = coefficentsSign[index + 1];
+ if (significance1) {
+ sign0 = coefficentsSign[index - 1];
+ contribution = 1 - sign1 - sign0;
+ } else {
+ contribution = 1 - sign1 - sign1;
+ }
+ } else if (significance1) {
+ sign0 = coefficentsSign[index - 1];
+ contribution = 1 - sign0 - sign0;
+ } else {
+ contribution = 0;
+ }
+ var horizontalContribution = 3 * contribution;
+
+ // calculate vertical contribution and combine with the horizontal
+ significance1 = (row > 0 && coefficentsMagnitude[index - width] !== 0);
+ if (row + 1 < height && coefficentsMagnitude[index + width] !== 0) {
+ sign1 = coefficentsSign[index + width];
+ if (significance1) {
+ sign0 = coefficentsSign[index - width];
+ contribution = 1 - sign1 - sign0 + horizontalContribution;
+ } else {
+ contribution = 1 - sign1 - sign1 + horizontalContribution;
+ }
+ } else if (significance1) {
+ sign0 = coefficentsSign[index - width];
+ contribution = 1 - sign0 - sign0 + horizontalContribution;
+ } else {
+ contribution = horizontalContribution;
+ }
+
+ if (contribution >= 0) {
+ contextLabel = 9 + contribution;
+ decoded = this.decoder.readBit(this.contexts, contextLabel);
+ } else {
+ contextLabel = 9 - contribution;
+ decoded = this.decoder.readBit(this.contexts, contextLabel) ^ 1;
+ }
+ return decoded;
+ },
+ runMagnitudeRefinementPass:
+ function BitModel_runMagnitudeRefinementPass() {
+ var decoder = this.decoder;
+ var width = this.width, height = this.height;
+ var coefficentsMagnitude = this.coefficentsMagnitude;
+ var neighborsSignificance = this.neighborsSignificance;
+ var contexts = this.contexts;
+ var bitsDecoded = this.bitsDecoded;
+ var processingFlags = this.processingFlags;
+ var processedMask = 1;
+ var firstMagnitudeBitMask = 2;
+ var length = width * height;
+ var width4 = width * 4;
+
+ for (var index0 = 0, indexNext; index0 < length; index0 = indexNext) {
+ indexNext = Math.min(length, index0 + width4);
+ for (var j = 0; j < width; j++) {
+ for (var index = index0 + j; index < indexNext; index += width) {
+
+ // significant but not those that have just become
+ if (!coefficentsMagnitude[index] ||
+ (processingFlags[index] & processedMask) !== 0) {
+ continue;
+ }
+
+ var contextLabel = 16;
+ if ((processingFlags[index] & firstMagnitudeBitMask) !== 0) {
+ processingFlags[index] ^= firstMagnitudeBitMask;
+ // first refinement
+ var significance = neighborsSignificance[index] & 127;
+ contextLabel = significance === 0 ? 15 : 14;
+ }
+
+ var bit = decoder.readBit(contexts, contextLabel);
+ coefficentsMagnitude[index] =
+ (coefficentsMagnitude[index] << 1) | bit;
+ bitsDecoded[index]++;
+ processingFlags[index] |= processedMask;
+ }
+ }
+ }
+ },
+ runCleanupPass: function BitModel_runCleanupPass() {
+ var decoder = this.decoder;
+ var width = this.width, height = this.height;
+ var neighborsSignificance = this.neighborsSignificance;
+ var coefficentsMagnitude = this.coefficentsMagnitude;
+ var coefficentsSign = this.coefficentsSign;
+ var contexts = this.contexts;
+ var labels = this.contextLabelTable;
+ var bitsDecoded = this.bitsDecoded;
+ var processingFlags = this.processingFlags;
+ var processedMask = 1;
+ var firstMagnitudeBitMask = 2;
+ var oneRowDown = width;
+ var twoRowsDown = width * 2;
+ var threeRowsDown = width * 3;
+ var iNext;
+ for (var i0 = 0; i0 < height; i0 = iNext) {
+ iNext = Math.min(i0 + 4, height);
+ var indexBase = i0 * width;
+ var checkAllEmpty = i0 + 3 < height;
+ for (var j = 0; j < width; j++) {
+ var index0 = indexBase + j;
+ // using the property: labels[neighborsSignificance[index]] === 0
+ // when neighborsSignificance[index] === 0
+ var allEmpty = (checkAllEmpty &&
+ processingFlags[index0] === 0 &&
+ processingFlags[index0 + oneRowDown] === 0 &&
+ processingFlags[index0 + twoRowsDown] === 0 &&
+ processingFlags[index0 + threeRowsDown] === 0 &&
+ neighborsSignificance[index0] === 0 &&
+ neighborsSignificance[index0 + oneRowDown] === 0 &&
+ neighborsSignificance[index0 + twoRowsDown] === 0 &&
+ neighborsSignificance[index0 + threeRowsDown] === 0);
+ var i1 = 0, index = index0;
+ var i = i0, sign;
+ if (allEmpty) {
+ var hasSignificantCoefficent =
+ decoder.readBit(contexts, RUNLENGTH_CONTEXT);
+ if (!hasSignificantCoefficent) {
+ bitsDecoded[index0]++;
+ bitsDecoded[index0 + oneRowDown]++;
+ bitsDecoded[index0 + twoRowsDown]++;
+ bitsDecoded[index0 + threeRowsDown]++;
+ continue; // next column
+ }
+ i1 = (decoder.readBit(contexts, UNIFORM_CONTEXT) << 1) |
+ decoder.readBit(contexts, UNIFORM_CONTEXT);
+ if (i1 !== 0) {
+ i = i0 + i1;
+ index += i1 * width;
+ }
+
+ sign = this.decodeSignBit(i, j, index);
+ coefficentsSign[index] = sign;
+ coefficentsMagnitude[index] = 1;
+ this.setNeighborsSignificance(i, j, index);
+ processingFlags[index] |= firstMagnitudeBitMask;
+
+ index = index0;
+ for (var i2 = i0; i2 <= i; i2++, index += width) {
+ bitsDecoded[index]++;
+ }
+
+ i1++;
+ }
+ for (i = i0 + i1; i < iNext; i++, index += width) {
+ if (coefficentsMagnitude[index] ||
+ (processingFlags[index] & processedMask) !== 0) {
+ continue;
+ }
+
+ var contextLabel = labels[neighborsSignificance[index]];
+ var decision = decoder.readBit(contexts, contextLabel);
+ if (decision === 1) {
+ sign = this.decodeSignBit(i, j, index);
+ coefficentsSign[index] = sign;
+ coefficentsMagnitude[index] = 1;
+ this.setNeighborsSignificance(i, j, index);
+ processingFlags[index] |= firstMagnitudeBitMask;
+ }
+ bitsDecoded[index]++;
+ }
+ }
+ }
+ },
+ checkSegmentationSymbol: function BitModel_checkSegmentationSymbol() {
+ var decoder = this.decoder;
+ var contexts = this.contexts;
+ var symbol = (decoder.readBit(contexts, UNIFORM_CONTEXT) << 3) |
+ (decoder.readBit(contexts, UNIFORM_CONTEXT) << 2) |
+ (decoder.readBit(contexts, UNIFORM_CONTEXT) << 1) |
+ decoder.readBit(contexts, UNIFORM_CONTEXT);
+ if (symbol !== 0xA) {
+ throw new Error('JPX Error: Invalid segmentation symbol');
+ }
+ }
+ };
+
+ return BitModel;
+ })();
+
+ // Section F, Discrete wavelet transformation
+ var Transform = (function TransformClosure() {
+ function Transform() {}
+
+ Transform.prototype.calculate =
+ function transformCalculate(subbands, u0, v0) {
+ var ll = subbands[0];
+ for (var i = 1, ii = subbands.length; i < ii; i++) {
+ ll = this.iterate(ll, subbands[i], u0, v0);
+ }
+ return ll;
+ };
+ Transform.prototype.extend = function extend(buffer, offset, size) {
+ // Section F.3.7 extending... using max extension of 4
+ var i1 = offset - 1, j1 = offset + 1;
+ var i2 = offset + size - 2, j2 = offset + size;
+ buffer[i1--] = buffer[j1++];
+ buffer[j2++] = buffer[i2--];
+ buffer[i1--] = buffer[j1++];
+ buffer[j2++] = buffer[i2--];
+ buffer[i1--] = buffer[j1++];
+ buffer[j2++] = buffer[i2--];
+ buffer[i1] = buffer[j1];
+ buffer[j2] = buffer[i2];
+ };
+ Transform.prototype.iterate = function Transform_iterate(ll, hl_lh_hh,
+ u0, v0) {
+ var llWidth = ll.width, llHeight = ll.height, llItems = ll.items;
+ var width = hl_lh_hh.width;
+ var height = hl_lh_hh.height;
+ var items = hl_lh_hh.items;
+ var i, j, k, l, u, v;
+
+ // Interleave LL according to Section F.3.3
+ for (k = 0, i = 0; i < llHeight; i++) {
+ l = i * 2 * width;
+ for (j = 0; j < llWidth; j++, k++, l += 2) {
+ items[l] = llItems[k];
+ }
+ }
+ // The LL band is not needed anymore.
+ llItems = ll.items = null;
+
+ var bufferPadding = 4;
+ var rowBuffer = new Float32Array(width + 2 * bufferPadding);
+
+ // Section F.3.4 HOR_SR
+ if (width === 1) {
+ // if width = 1, when u0 even keep items as is, when odd divide by 2
+ if ((u0 & 1) !== 0) {
+ for (v = 0, k = 0; v < height; v++, k += width) {
+ items[k] *= 0.5;
+ }
+ }
+ } else {
+ for (v = 0, k = 0; v < height; v++, k += width) {
+ rowBuffer.set(items.subarray(k, k + width), bufferPadding);
+
+ this.extend(rowBuffer, bufferPadding, width);
+ this.filter(rowBuffer, bufferPadding, width);
+
+ items.set(
+ rowBuffer.subarray(bufferPadding, bufferPadding + width),
+ k);
+ }
+ }
+
+ // Accesses to the items array can take long, because it may not fit into
+ // CPU cache and has to be fetched from main memory. Since subsequent
+ // accesses to the items array are not local when reading columns, we
+ // have a cache miss every time. To reduce cache misses, get up to
+ // 'numBuffers' items at a time and store them into the individual
+ // buffers. The colBuffers should be small enough to fit into CPU cache.
+ var numBuffers = 16;
+ var colBuffers = [];
+ for (i = 0; i < numBuffers; i++) {
+ colBuffers.push(new Float32Array(height + 2 * bufferPadding));
+ }
+ var b, currentBuffer = 0;
+ ll = bufferPadding + height;
+
+ // Section F.3.5 VER_SR
+ if (height === 1) {
+ // if height = 1, when v0 even keep items as is, when odd divide by 2
+ if ((v0 & 1) !== 0) {
+ for (u = 0; u < width; u++) {
+ items[u] *= 0.5;
+ }
+ }
+ } else {
+ for (u = 0; u < width; u++) {
+ // if we ran out of buffers, copy several image columns at once
+ if (currentBuffer === 0) {
+ numBuffers = Math.min(width - u, numBuffers);
+ for (k = u, l = bufferPadding; l < ll; k += width, l++) {
+ for (b = 0; b < numBuffers; b++) {
+ colBuffers[b][l] = items[k + b];
+ }
+ }
+ currentBuffer = numBuffers;
+ }
+
+ currentBuffer--;
+ var buffer = colBuffers[currentBuffer];
+ this.extend(buffer, bufferPadding, height);
+ this.filter(buffer, bufferPadding, height);
+
+ // If this is last buffer in this group of buffers, flush all buffers.
+ if (currentBuffer === 0) {
+ k = u - numBuffers + 1;
+ for (l = bufferPadding; l < ll; k += width, l++) {
+ for (b = 0; b < numBuffers; b++) {
+ items[k + b] = colBuffers[b][l];
+ }
+ }
+ }
+ }
+ }
+
+ return {
+ width: width,
+ height: height,
+ items: items
+ };
+ };
+ return Transform;
+ })();
+
+ // Section 3.8.2 Irreversible 9-7 filter
+ var IrreversibleTransform = (function IrreversibleTransformClosure() {
+ function IrreversibleTransform() {
+ Transform.call(this);
+ }
+
+ IrreversibleTransform.prototype = Object.create(Transform.prototype);
+ IrreversibleTransform.prototype.filter =
+ function irreversibleTransformFilter(x, offset, length) {
+ var len = length >> 1;
+ offset = offset | 0;
+ var j, n, current, next;
+
+ var alpha = -1.586134342059924;
+ var beta = -0.052980118572961;
+ var gamma = 0.882911075530934;
+ var delta = 0.443506852043971;
+ var K = 1.230174104914001;
+ var K_ = 1 / K;
+
+ // step 1 is combined with step 3
+
+ // step 2
+ j = offset - 3;
+ for (n = len + 4; n--; j += 2) {
+ x[j] *= K_;
+ }
+
+ // step 1 & 3
+ j = offset - 2;
+ current = delta * x[j -1];
+ for (n = len + 3; n--; j += 2) {
+ next = delta * x[j + 1];
+ x[j] = K * x[j] - current - next;
+ if (n--) {
+ j += 2;
+ current = delta * x[j + 1];
+ x[j] = K * x[j] - current - next;
+ } else {
+ break;
+ }
+ }
+
+ // step 4
+ j = offset - 1;
+ current = gamma * x[j - 1];
+ for (n = len + 2; n--; j += 2) {
+ next = gamma * x[j + 1];
+ x[j] -= current + next;
+ if (n--) {
+ j += 2;
+ current = gamma * x[j + 1];
+ x[j] -= current + next;
+ } else {
+ break;
+ }
+ }
+
+ // step 5
+ j = offset;
+ current = beta * x[j - 1];
+ for (n = len + 1; n--; j += 2) {
+ next = beta * x[j + 1];
+ x[j] -= current + next;
+ if (n--) {
+ j += 2;
+ current = beta * x[j + 1];
+ x[j] -= current + next;
+ } else {
+ break;
+ }
+ }
+
+ // step 6
+ if (len !== 0) {
+ j = offset + 1;
+ current = alpha * x[j - 1];
+ for (n = len; n--; j += 2) {
+ next = alpha * x[j + 1];
+ x[j] -= current + next;
+ if (n--) {
+ j += 2;
+ current = alpha * x[j + 1];
+ x[j] -= current + next;
+ } else {
+ break;
+ }
+ }
+ }
+ };
+
+ return IrreversibleTransform;
+ })();
+
+ // Section 3.8.1 Reversible 5-3 filter
+ var ReversibleTransform = (function ReversibleTransformClosure() {
+ function ReversibleTransform() {
+ Transform.call(this);
+ }
+
+ ReversibleTransform.prototype = Object.create(Transform.prototype);
+ ReversibleTransform.prototype.filter =
+ function reversibleTransformFilter(x, offset, length) {
+ var len = length >> 1;
+ offset = offset | 0;
+ var j, n;
+
+ for (j = offset, n = len + 1; n--; j += 2) {
+ x[j] -= (x[j - 1] + x[j + 1] + 2) >> 2;
+ }
+
+ for (j = offset + 1, n = len; n--; j += 2) {
+ x[j] += (x[j - 1] + x[j + 1]) >> 1;
+ }
+ };
+
+ return ReversibleTransform;
+ })();
+
+ return JpxImage;
+})();
+
+
+var Jbig2Image = (function Jbig2ImageClosure() {
+ // Utility data structures
+ function ContextCache() {}
+
+ ContextCache.prototype = {
+ getContexts: function(id) {
+ if (id in this) {
+ return this[id];
+ }
+ return (this[id] = new Int8Array(1 << 16));
+ }
+ };
+
+ function DecodingContext(data, start, end) {
+ this.data = data;
+ this.start = start;
+ this.end = end;
+ }
+
+ DecodingContext.prototype = {
+ get decoder() {
+ var decoder = new ArithmeticDecoder(this.data, this.start, this.end);
+ return shadow(this, 'decoder', decoder);
+ },
+ get contextCache() {
+ var cache = new ContextCache();
+ return shadow(this, 'contextCache', cache);
+ }
+ };
+
+ // Annex A. Arithmetic Integer Decoding Procedure
+ // A.2 Procedure for decoding values
+ function decodeInteger(contextCache, procedure, decoder) {
+ var contexts = contextCache.getContexts(procedure);
+ var prev = 1;
+
+ function readBits(length) {
+ var v = 0;
+ for (var i = 0; i < length; i++) {
+ var bit = decoder.readBit(contexts, prev);
+ prev = (prev < 256 ? (prev << 1) | bit :
+ (((prev << 1) | bit) & 511) | 256);
+ v = (v << 1) | bit;
+ }
+ return v >>> 0;
+ }
+
+ var sign = readBits(1);
+ var value = readBits(1) ?
+ (readBits(1) ?
+ (readBits(1) ?
+ (readBits(1) ?
+ (readBits(1) ?
+ (readBits(32) + 4436) :
+ readBits(12) + 340) :
+ readBits(8) + 84) :
+ readBits(6) + 20) :
+ readBits(4) + 4) :
+ readBits(2);
+ return (sign === 0 ? value : (value > 0 ? -value : null));
+ }
+
+ // A.3 The IAID decoding procedure
+ function decodeIAID(contextCache, decoder, codeLength) {
+ var contexts = contextCache.getContexts('IAID');
+
+ var prev = 1;
+ for (var i = 0; i < codeLength; i++) {
+ var bit = decoder.readBit(contexts, prev);
+ prev = (prev << 1) | bit;
+ }
+ if (codeLength < 31) {
+ return prev & ((1 << codeLength) - 1);
+ }
+ return prev & 0x7FFFFFFF;
+ }
+
+ // 7.3 Segment types
+ var SegmentTypes = [
+ 'SymbolDictionary', null, null, null, 'IntermediateTextRegion', null,
+ 'ImmediateTextRegion', 'ImmediateLosslessTextRegion', null, null, null,
+ null, null, null, null, null, 'patternDictionary', null, null, null,
+ 'IntermediateHalftoneRegion', null, 'ImmediateHalftoneRegion',
+ 'ImmediateLosslessHalftoneRegion', null, null, null, null, null, null, null,
+ null, null, null, null, null, 'IntermediateGenericRegion', null,
+ 'ImmediateGenericRegion', 'ImmediateLosslessGenericRegion',
+ 'IntermediateGenericRefinementRegion', null,
+ 'ImmediateGenericRefinementRegion',
+ 'ImmediateLosslessGenericRefinementRegion', null, null, null, null,
+ 'PageInformation', 'EndOfPage', 'EndOfStripe', 'EndOfFile', 'Profiles',
+ 'Tables', null, null, null, null, null, null, null, null,
+ 'Extension'
+ ];
+
+ var CodingTemplates = [
+ [{x: -1, y: -2}, {x: 0, y: -2}, {x: 1, y: -2}, {x: -2, y: -1},
+ {x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, {x: 2, y: -1},
+ {x: -4, y: 0}, {x: -3, y: 0}, {x: -2, y: 0}, {x: -1, y: 0}],
+ [{x: -1, y: -2}, {x: 0, y: -2}, {x: 1, y: -2}, {x: 2, y: -2},
+ {x: -2, y: -1}, {x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1},
+ {x: 2, y: -1}, {x: -3, y: 0}, {x: -2, y: 0}, {x: -1, y: 0}],
+ [{x: -1, y: -2}, {x: 0, y: -2}, {x: 1, y: -2}, {x: -2, y: -1},
+ {x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, {x: -2, y: 0},
+ {x: -1, y: 0}],
+ [{x: -3, y: -1}, {x: -2, y: -1}, {x: -1, y: -1}, {x: 0, y: -1},
+ {x: 1, y: -1}, {x: -4, y: 0}, {x: -3, y: 0}, {x: -2, y: 0}, {x: -1, y: 0}]
+ ];
+
+ var RefinementTemplates = [
+ {
+ coding: [{x: 0, y: -1}, {x: 1, y: -1}, {x: -1, y: 0}],
+ reference: [{x: 0, y: -1}, {x: 1, y: -1}, {x: -1, y: 0}, {x: 0, y: 0},
+ {x: 1, y: 0}, {x: -1, y: 1}, {x: 0, y: 1}, {x: 1, y: 1}]
+ },
+ {
+ coding: [{x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, {x: -1, y: 0}],
+ reference: [{x: 0, y: -1}, {x: -1, y: 0}, {x: 0, y: 0}, {x: 1, y: 0},
+ {x: 0, y: 1}, {x: 1, y: 1}]
+ }
+ ];
+
+ // See 6.2.5.7 Decoding the bitmap.
+ var ReusedContexts = [
+ 0x9B25, // 10011 0110010 0101
+ 0x0795, // 0011 110010 101
+ 0x00E5, // 001 11001 01
+ 0x0195 // 011001 0101
+ ];
+
+ var RefinementReusedContexts = [
+ 0x0020, // '000' + '0' (coding) + '00010000' + '0' (reference)
+ 0x0008 // '0000' + '001000'
+ ];
+
+ function decodeBitmapTemplate0(width, height, decodingContext) {
+ var decoder = decodingContext.decoder;
+ var contexts = decodingContext.contextCache.getContexts('GB');
+ var contextLabel, i, j, pixel, row, row1, row2, bitmap = [];
+
+ // ...ooooo....
+ // ..ooooooo... Context template for current pixel (X)
+ // .ooooX...... (concatenate values of 'o'-pixels to get contextLabel)
+ var OLD_PIXEL_MASK = 0x7BF7; // 01111 0111111 0111
+
+ for (i = 0; i < height; i++) {
+ row = bitmap[i] = new Uint8Array(width);
+ row1 = (i < 1) ? row : bitmap[i - 1];
+ row2 = (i < 2) ? row : bitmap[i - 2];
+
+ // At the beginning of each row:
+ // Fill contextLabel with pixels that are above/right of (X)
+ contextLabel = (row2[0] << 13) | (row2[1] << 12) | (row2[2] << 11) |
+ (row1[0] << 7) | (row1[1] << 6) | (row1[2] << 5) |
+ (row1[3] << 4);
+
+ for (j = 0; j < width; j++) {
+ row[j] = pixel = decoder.readBit(contexts, contextLabel);
+
+ // At each pixel: Clear contextLabel pixels that are shifted
+ // out of the context, then add new ones.
+ contextLabel = ((contextLabel & OLD_PIXEL_MASK) << 1) |
+ (j + 3 < width ? row2[j + 3] << 11 : 0) |
+ (j + 4 < width ? row1[j + 4] << 4 : 0) | pixel;
+ }
+ }
+
+ return bitmap;
+ }
+
+ // 6.2 Generic Region Decoding Procedure
+ function decodeBitmap(mmr, width, height, templateIndex, prediction, skip, at,
+ decodingContext) {
+ if (mmr) {
+ error('JBIG2 error: MMR encoding is not supported');
+ }
+
+ // Use optimized version for the most common case
+ if (templateIndex === 0 && !skip && !prediction && at.length === 4 &&
+ at[0].x === 3 && at[0].y === -1 && at[1].x === -3 && at[1].y === -1 &&
+ at[2].x === 2 && at[2].y === -2 && at[3].x === -2 && at[3].y === -2) {
+ return decodeBitmapTemplate0(width, height, decodingContext);
+ }
+
+ var useskip = !!skip;
+ var template = CodingTemplates[templateIndex].concat(at);
+
+ // Sorting is non-standard, and it is not required. But sorting increases
+ // the number of template bits that can be reused from the previous
+ // contextLabel in the main loop.
+ template.sort(function (a, b) {
+ return (a.y - b.y) || (a.x - b.x);
+ });
+
+ var templateLength = template.length;
+ var templateX = new Int8Array(templateLength);
+ var templateY = new Int8Array(templateLength);
+ var changingTemplateEntries = [];
+ var reuseMask = 0, minX = 0, maxX = 0, minY = 0;
+ var c, k;
+
+ for (k = 0; k < templateLength; k++) {
+ templateX[k] = template[k].x;
+ templateY[k] = template[k].y;
+ minX = Math.min(minX, template[k].x);
+ maxX = Math.max(maxX, template[k].x);
+ minY = Math.min(minY, template[k].y);
+ // Check if the template pixel appears in two consecutive context labels,
+ // so it can be reused. Otherwise, we add it to the list of changing
+ // template entries.
+ if (k < templateLength - 1 &&
+ template[k].y === template[k + 1].y &&
+ template[k].x === template[k + 1].x - 1) {
+ reuseMask |= 1 << (templateLength - 1 - k);
+ } else {
+ changingTemplateEntries.push(k);
+ }
+ }
+ var changingEntriesLength = changingTemplateEntries.length;
+
+ var changingTemplateX = new Int8Array(changingEntriesLength);
+ var changingTemplateY = new Int8Array(changingEntriesLength);
+ var changingTemplateBit = new Uint16Array(changingEntriesLength);
+ for (c = 0; c < changingEntriesLength; c++) {
+ k = changingTemplateEntries[c];
+ changingTemplateX[c] = template[k].x;
+ changingTemplateY[c] = template[k].y;
+ changingTemplateBit[c] = 1 << (templateLength - 1 - k);
+ }
+
+ // Get the safe bounding box edges from the width, height, minX, maxX, minY
+ var sbb_left = -minX;
+ var sbb_top = -minY;
+ var sbb_right = width - maxX;
+
+ var pseudoPixelContext = ReusedContexts[templateIndex];
+ var row = new Uint8Array(width);
+ var bitmap = [];
+
+ var decoder = decodingContext.decoder;
+ var contexts = decodingContext.contextCache.getContexts('GB');
+
+ var ltp = 0, j, i0, j0, contextLabel = 0, bit, shift;
+ for (var i = 0; i < height; i++) {
+ if (prediction) {
+ var sltp = decoder.readBit(contexts, pseudoPixelContext);
+ ltp ^= sltp;
+ if (ltp) {
+ bitmap.push(row); // duplicate previous row
+ continue;
+ }
+ }
+ row = new Uint8Array(row);
+ bitmap.push(row);
+ for (j = 0; j < width; j++) {
+ if (useskip && skip[i][j]) {
+ row[j] = 0;
+ continue;
+ }
+ // Are we in the middle of a scanline, so we can reuse contextLabel
+ // bits?
+ if (j >= sbb_left && j < sbb_right && i >= sbb_top) {
+ // If yes, we can just shift the bits that are reusable and only
+ // fetch the remaining ones.
+ contextLabel = (contextLabel << 1) & reuseMask;
+ for (k = 0; k < changingEntriesLength; k++) {
+ i0 = i + changingTemplateY[k];
+ j0 = j + changingTemplateX[k];
+ bit = bitmap[i0][j0];
+ if (bit) {
+ bit = changingTemplateBit[k];
+ contextLabel |= bit;
+ }
+ }
+ } else {
+ // compute the contextLabel from scratch
+ contextLabel = 0;
+ shift = templateLength - 1;
+ for (k = 0; k < templateLength; k++, shift--) {
+ j0 = j + templateX[k];
+ if (j0 >= 0 && j0 < width) {
+ i0 = i + templateY[k];
+ if (i0 >= 0) {
+ bit = bitmap[i0][j0];
+ if (bit) {
+ contextLabel |= bit << shift;
+ }
+ }
+ }
+ }
+ }
+ var pixel = decoder.readBit(contexts, contextLabel);
+ row[j] = pixel;
+ }
+ }
+ return bitmap;
+ }
+
+ // 6.3.2 Generic Refinement Region Decoding Procedure
+ function decodeRefinement(width, height, templateIndex, referenceBitmap,
+ offsetX, offsetY, prediction, at,
+ decodingContext) {
+ var codingTemplate = RefinementTemplates[templateIndex].coding;
+ if (templateIndex === 0) {
+ codingTemplate = codingTemplate.concat([at[0]]);
+ }
+ var codingTemplateLength = codingTemplate.length;
+ var codingTemplateX = new Int32Array(codingTemplateLength);
+ var codingTemplateY = new Int32Array(codingTemplateLength);
+ var k;
+ for (k = 0; k < codingTemplateLength; k++) {
+ codingTemplateX[k] = codingTemplate[k].x;
+ codingTemplateY[k] = codingTemplate[k].y;
+ }
+
+ var referenceTemplate = RefinementTemplates[templateIndex].reference;
+ if (templateIndex === 0) {
+ referenceTemplate = referenceTemplate.concat([at[1]]);
+ }
+ var referenceTemplateLength = referenceTemplate.length;
+ var referenceTemplateX = new Int32Array(referenceTemplateLength);
+ var referenceTemplateY = new Int32Array(referenceTemplateLength);
+ for (k = 0; k < referenceTemplateLength; k++) {
+ referenceTemplateX[k] = referenceTemplate[k].x;
+ referenceTemplateY[k] = referenceTemplate[k].y;
+ }
+ var referenceWidth = referenceBitmap[0].length;
+ var referenceHeight = referenceBitmap.length;
+
+ var pseudoPixelContext = RefinementReusedContexts[templateIndex];
+ var bitmap = [];
+
+ var decoder = decodingContext.decoder;
+ var contexts = decodingContext.contextCache.getContexts('GR');
+
+ var ltp = 0;
+ for (var i = 0; i < height; i++) {
+ if (prediction) {
+ var sltp = decoder.readBit(contexts, pseudoPixelContext);
+ ltp ^= sltp;
+ if (ltp) {
+ error('JBIG2 error: prediction is not supported');
+ }
+ }
+ var row = new Uint8Array(width);
+ bitmap.push(row);
+ for (var j = 0; j < width; j++) {
+ var i0, j0;
+ var contextLabel = 0;
+ for (k = 0; k < codingTemplateLength; k++) {
+ i0 = i + codingTemplateY[k];
+ j0 = j + codingTemplateX[k];
+ if (i0 < 0 || j0 < 0 || j0 >= width) {
+ contextLabel <<= 1; // out of bound pixel
+ } else {
+ contextLabel = (contextLabel << 1) | bitmap[i0][j0];
+ }
+ }
+ for (k = 0; k < referenceTemplateLength; k++) {
+ i0 = i + referenceTemplateY[k] + offsetY;
+ j0 = j + referenceTemplateX[k] + offsetX;
+ if (i0 < 0 || i0 >= referenceHeight || j0 < 0 ||
+ j0 >= referenceWidth) {
+ contextLabel <<= 1; // out of bound pixel
+ } else {
+ contextLabel = (contextLabel << 1) | referenceBitmap[i0][j0];
+ }
+ }
+ var pixel = decoder.readBit(contexts, contextLabel);
+ row[j] = pixel;
+ }
+ }
+
+ return bitmap;
+ }
+
+ // 6.5.5 Decoding the symbol dictionary
+ function decodeSymbolDictionary(huffman, refinement, symbols,
+ numberOfNewSymbols, numberOfExportedSymbols,
+ huffmanTables, templateIndex, at,
+ refinementTemplateIndex, refinementAt,
+ decodingContext) {
+ if (huffman) {
+ error('JBIG2 error: huffman is not supported');
+ }
+
+ var newSymbols = [];
+ var currentHeight = 0;
+ var symbolCodeLength = log2(symbols.length + numberOfNewSymbols);
+
+ var decoder = decodingContext.decoder;
+ var contextCache = decodingContext.contextCache;
+
+ while (newSymbols.length < numberOfNewSymbols) {
+ var deltaHeight = decodeInteger(contextCache, 'IADH', decoder); // 6.5.6
+ currentHeight += deltaHeight;
+ var currentWidth = 0;
+ var totalWidth = 0;
+ while (true) {
+ var deltaWidth = decodeInteger(contextCache, 'IADW', decoder); // 6.5.7
+ if (deltaWidth === null) {
+ break; // OOB
+ }
+ currentWidth += deltaWidth;
+ totalWidth += currentWidth;
+ var bitmap;
+ if (refinement) {
+ // 6.5.8.2 Refinement/aggregate-coded symbol bitmap
+ var numberOfInstances = decodeInteger(contextCache, 'IAAI', decoder);
+ if (numberOfInstances > 1) {
+ bitmap = decodeTextRegion(huffman, refinement,
+ currentWidth, currentHeight, 0,
+ numberOfInstances, 1, //strip size
+ symbols.concat(newSymbols),
+ symbolCodeLength,
+ 0, //transposed
+ 0, //ds offset
+ 1, //top left 7.4.3.1.1
+ 0, //OR operator
+ huffmanTables,
+ refinementTemplateIndex, refinementAt,
+ decodingContext);
+ } else {
+ var symbolId = decodeIAID(contextCache, decoder, symbolCodeLength);
+ var rdx = decodeInteger(contextCache, 'IARDX', decoder); // 6.4.11.3
+ var rdy = decodeInteger(contextCache, 'IARDY', decoder); // 6.4.11.4
+ var symbol = (symbolId < symbols.length ? symbols[symbolId] :
+ newSymbols[symbolId - symbols.length]);
+ bitmap = decodeRefinement(currentWidth, currentHeight,
+ refinementTemplateIndex, symbol, rdx, rdy, false, refinementAt,
+ decodingContext);
+ }
+ } else {
+ // 6.5.8.1 Direct-coded symbol bitmap
+ bitmap = decodeBitmap(false, currentWidth, currentHeight,
+ templateIndex, false, null, at, decodingContext);
+ }
+ newSymbols.push(bitmap);
+ }
+ }
+ // 6.5.10 Exported symbols
+ var exportedSymbols = [];
+ var flags = [], currentFlag = false;
+ var totalSymbolsLength = symbols.length + numberOfNewSymbols;
+ while (flags.length < totalSymbolsLength) {
+ var runLength = decodeInteger(contextCache, 'IAEX', decoder);
+ while (runLength--) {
+ flags.push(currentFlag);
+ }
+ currentFlag = !currentFlag;
+ }
+ for (var i = 0, ii = symbols.length; i < ii; i++) {
+ if (flags[i]) {
+ exportedSymbols.push(symbols[i]);
+ }
+ }
+ for (var j = 0; j < numberOfNewSymbols; i++, j++) {
+ if (flags[i]) {
+ exportedSymbols.push(newSymbols[j]);
+ }
+ }
+ return exportedSymbols;
+ }
+
+ function decodeTextRegion(huffman, refinement, width, height,
+ defaultPixelValue, numberOfSymbolInstances,
+ stripSize, inputSymbols, symbolCodeLength,
+ transposed, dsOffset, referenceCorner,
+ combinationOperator, huffmanTables,
+ refinementTemplateIndex, refinementAt,
+ decodingContext) {
+ if (huffman) {
+ error('JBIG2 error: huffman is not supported');
+ }
+
+ // Prepare bitmap
+ var bitmap = [];
+ var i, row;
+ for (i = 0; i < height; i++) {
+ row = new Uint8Array(width);
+ if (defaultPixelValue) {
+ for (var j = 0; j < width; j++) {
+ row[j] = defaultPixelValue;
+ }
+ }
+ bitmap.push(row);
+ }
+
+ var decoder = decodingContext.decoder;
+ var contextCache = decodingContext.contextCache;
+ var stripT = -decodeInteger(contextCache, 'IADT', decoder); // 6.4.6
+ var firstS = 0;
+ i = 0;
+ while (i < numberOfSymbolInstances) {
+ var deltaT = decodeInteger(contextCache, 'IADT', decoder); // 6.4.6
+ stripT += deltaT;
+
+ var deltaFirstS = decodeInteger(contextCache, 'IAFS', decoder); // 6.4.7
+ firstS += deltaFirstS;
+ var currentS = firstS;
+ do {
+ var currentT = (stripSize === 1 ? 0 :
+ decodeInteger(contextCache, 'IAIT', decoder)); // 6.4.9
+ var t = stripSize * stripT + currentT;
+ var symbolId = decodeIAID(contextCache, decoder, symbolCodeLength);
+ var applyRefinement = (refinement &&
+ decodeInteger(contextCache, 'IARI', decoder));
+ var symbolBitmap = inputSymbols[symbolId];
+ var symbolWidth = symbolBitmap[0].length;
+ var symbolHeight = symbolBitmap.length;
+ if (applyRefinement) {
+ var rdw = decodeInteger(contextCache, 'IARDW', decoder); // 6.4.11.1
+ var rdh = decodeInteger(contextCache, 'IARDH', decoder); // 6.4.11.2
+ var rdx = decodeInteger(contextCache, 'IARDX', decoder); // 6.4.11.3
+ var rdy = decodeInteger(contextCache, 'IARDY', decoder); // 6.4.11.4
+ symbolWidth += rdw;
+ symbolHeight += rdh;
+ symbolBitmap = decodeRefinement(symbolWidth, symbolHeight,
+ refinementTemplateIndex, symbolBitmap, (rdw >> 1) + rdx,
+ (rdh >> 1) + rdy, false, refinementAt,
+ decodingContext);
+ }
+ var offsetT = t - ((referenceCorner & 1) ? 0 : symbolHeight);
+ var offsetS = currentS - ((referenceCorner & 2) ? symbolWidth : 0);
+ var s2, t2, symbolRow;
+ if (transposed) {
+ // Place Symbol Bitmap from T1,S1
+ for (s2 = 0; s2 < symbolHeight; s2++) {
+ row = bitmap[offsetS + s2];
+ if (!row) {
+ continue;
+ }
+ symbolRow = symbolBitmap[s2];
+ // To ignore Parts of Symbol bitmap which goes
+ // outside bitmap region
+ var maxWidth = Math.min(width - offsetT, symbolWidth);
+ switch (combinationOperator) {
+ case 0: // OR
+ for (t2 = 0; t2 < maxWidth; t2++) {
+ row[offsetT + t2] |= symbolRow[t2];
+ }
+ break;
+ case 2: // XOR
+ for (t2 = 0; t2 < maxWidth; t2++) {
+ row[offsetT + t2] ^= symbolRow[t2];
+ }
+ break;
+ default:
+ error('JBIG2 error: operator ' + combinationOperator +
+ ' is not supported');
+ }
+ }
+ currentS += symbolHeight - 1;
+ } else {
+ for (t2 = 0; t2 < symbolHeight; t2++) {
+ row = bitmap[offsetT + t2];
+ if (!row) {
+ continue;
+ }
+ symbolRow = symbolBitmap[t2];
+ switch (combinationOperator) {
+ case 0: // OR
+ for (s2 = 0; s2 < symbolWidth; s2++) {
+ row[offsetS + s2] |= symbolRow[s2];
+ }
+ break;
+ case 2: // XOR
+ for (s2 = 0; s2 < symbolWidth; s2++) {
+ row[offsetS + s2] ^= symbolRow[s2];
+ }
+ break;
+ default:
+ error('JBIG2 error: operator ' + combinationOperator +
+ ' is not supported');
+ }
+ }
+ currentS += symbolWidth - 1;
+ }
+ i++;
+ var deltaS = decodeInteger(contextCache, 'IADS', decoder); // 6.4.8
+ if (deltaS === null) {
+ break; // OOB
+ }
+ currentS += deltaS + dsOffset;
+ } while (true);
+ }
+ return bitmap;
+ }
+
+ function readSegmentHeader(data, start) {
+ var segmentHeader = {};
+ segmentHeader.number = readUint32(data, start);
+ var flags = data[start + 4];
+ var segmentType = flags & 0x3F;
+ if (!SegmentTypes[segmentType]) {
+ error('JBIG2 error: invalid segment type: ' + segmentType);
+ }
+ segmentHeader.type = segmentType;
+ segmentHeader.typeName = SegmentTypes[segmentType];
+ segmentHeader.deferredNonRetain = !!(flags & 0x80);
+
+ var pageAssociationFieldSize = !!(flags & 0x40);
+ var referredFlags = data[start + 5];
+ var referredToCount = (referredFlags >> 5) & 7;
+ var retainBits = [referredFlags & 31];
+ var position = start + 6;
+ if (referredFlags === 7) {
+ referredToCount = readUint32(data, position - 1) & 0x1FFFFFFF;
+ position += 3;
+ var bytes = (referredToCount + 7) >> 3;
+ retainBits[0] = data[position++];
+ while (--bytes > 0) {
+ retainBits.push(data[position++]);
+ }
+ } else if (referredFlags === 5 || referredFlags === 6) {
+ error('JBIG2 error: invalid referred-to flags');
+ }
+
+ segmentHeader.retainBits = retainBits;
+ var referredToSegmentNumberSize = (segmentHeader.number <= 256 ? 1 :
+ (segmentHeader.number <= 65536 ? 2 : 4));
+ var referredTo = [];
+ var i, ii;
+ for (i = 0; i < referredToCount; i++) {
+ var number = (referredToSegmentNumberSize === 1 ? data[position] :
+ (referredToSegmentNumberSize === 2 ? readUint16(data, position) :
+ readUint32(data, position)));
+ referredTo.push(number);
+ position += referredToSegmentNumberSize;
+ }
+ segmentHeader.referredTo = referredTo;
+ if (!pageAssociationFieldSize) {
+ segmentHeader.pageAssociation = data[position++];
+ } else {
+ segmentHeader.pageAssociation = readUint32(data, position);
+ position += 4;
+ }
+ segmentHeader.length = readUint32(data, position);
+ position += 4;
+
+ if (segmentHeader.length === 0xFFFFFFFF) {
+ // 7.2.7 Segment data length, unknown segment length
+ if (segmentType === 38) { // ImmediateGenericRegion
+ var genericRegionInfo = readRegionSegmentInformation(data, position);
+ var genericRegionSegmentFlags = data[position +
+ RegionSegmentInformationFieldLength];
+ var genericRegionMmr = !!(genericRegionSegmentFlags & 1);
+ // searching for the segment end
+ var searchPatternLength = 6;
+ var searchPattern = new Uint8Array(searchPatternLength);
+ if (!genericRegionMmr) {
+ searchPattern[0] = 0xFF;
+ searchPattern[1] = 0xAC;
+ }
+ searchPattern[2] = (genericRegionInfo.height >>> 24) & 0xFF;
+ searchPattern[3] = (genericRegionInfo.height >> 16) & 0xFF;
+ searchPattern[4] = (genericRegionInfo.height >> 8) & 0xFF;
+ searchPattern[5] = genericRegionInfo.height & 0xFF;
+ for (i = position, ii = data.length; i < ii; i++) {
+ var j = 0;
+ while (j < searchPatternLength && searchPattern[j] === data[i + j]) {
+ j++;
+ }
+ if (j === searchPatternLength) {
+ segmentHeader.length = i + searchPatternLength;
+ break;
+ }
+ }
+ if (segmentHeader.length === 0xFFFFFFFF) {
+ error('JBIG2 error: segment end was not found');
+ }
+ } else {
+ error('JBIG2 error: invalid unknown segment length');
+ }
+ }
+ segmentHeader.headerEnd = position;
+ return segmentHeader;
+ }
+
+ function readSegments(header, data, start, end) {
+ var segments = [];
+ var position = start;
+ while (position < end) {
+ var segmentHeader = readSegmentHeader(data, position);
+ position = segmentHeader.headerEnd;
+ var segment = {
+ header: segmentHeader,
+ data: data
+ };
+ if (!header.randomAccess) {
+ segment.start = position;
+ position += segmentHeader.length;
+ segment.end = position;
+ }
+ segments.push(segment);
+ if (segmentHeader.type === 51) {
+ break; // end of file is found
+ }
+ }
+ if (header.randomAccess) {
+ for (var i = 0, ii = segments.length; i < ii; i++) {
+ segments[i].start = position;
+ position += segments[i].header.length;
+ segments[i].end = position;
+ }
+ }
+ return segments;
+ }
+
+ // 7.4.1 Region segment information field
+ function readRegionSegmentInformation(data, start) {
+ return {
+ width: readUint32(data, start),
+ height: readUint32(data, start + 4),
+ x: readUint32(data, start + 8),
+ y: readUint32(data, start + 12),
+ combinationOperator: data[start + 16] & 7
+ };
+ }
+ var RegionSegmentInformationFieldLength = 17;
+
+ function processSegment(segment, visitor) {
+ var header = segment.header;
+
+ var data = segment.data, position = segment.start, end = segment.end;
+ var args, at, i, atLength;
+ switch (header.type) {
+ case 0: // SymbolDictionary
+ // 7.4.2 Symbol dictionary segment syntax
+ var dictionary = {};
+ var dictionaryFlags = readUint16(data, position); // 7.4.2.1.1
+ dictionary.huffman = !!(dictionaryFlags & 1);
+ dictionary.refinement = !!(dictionaryFlags & 2);
+ dictionary.huffmanDHSelector = (dictionaryFlags >> 2) & 3;
+ dictionary.huffmanDWSelector = (dictionaryFlags >> 4) & 3;
+ dictionary.bitmapSizeSelector = (dictionaryFlags >> 6) & 1;
+ dictionary.aggregationInstancesSelector = (dictionaryFlags >> 7) & 1;
+ dictionary.bitmapCodingContextUsed = !!(dictionaryFlags & 256);
+ dictionary.bitmapCodingContextRetained = !!(dictionaryFlags & 512);
+ dictionary.template = (dictionaryFlags >> 10) & 3;
+ dictionary.refinementTemplate = (dictionaryFlags >> 12) & 1;
+ position += 2;
+ if (!dictionary.huffman) {
+ atLength = dictionary.template === 0 ? 4 : 1;
+ at = [];
+ for (i = 0; i < atLength; i++) {
+ at.push({
+ x: readInt8(data, position),
+ y: readInt8(data, position + 1)
+ });
+ position += 2;
+ }
+ dictionary.at = at;
+ }
+ if (dictionary.refinement && !dictionary.refinementTemplate) {
+ at = [];
+ for (i = 0; i < 2; i++) {
+ at.push({
+ x: readInt8(data, position),
+ y: readInt8(data, position + 1)
+ });
+ position += 2;
+ }
+ dictionary.refinementAt = at;
+ }
+ dictionary.numberOfExportedSymbols = readUint32(data, position);
+ position += 4;
+ dictionary.numberOfNewSymbols = readUint32(data, position);
+ position += 4;
+ args = [dictionary, header.number, header.referredTo,
+ data, position, end];
+ break;
+ case 6: // ImmediateTextRegion
+ case 7: // ImmediateLosslessTextRegion
+ var textRegion = {};
+ textRegion.info = readRegionSegmentInformation(data, position);
+ position += RegionSegmentInformationFieldLength;
+ var textRegionSegmentFlags = readUint16(data, position);
+ position += 2;
+ textRegion.huffman = !!(textRegionSegmentFlags & 1);
+ textRegion.refinement = !!(textRegionSegmentFlags & 2);
+ textRegion.stripSize = 1 << ((textRegionSegmentFlags >> 2) & 3);
+ textRegion.referenceCorner = (textRegionSegmentFlags >> 4) & 3;
+ textRegion.transposed = !!(textRegionSegmentFlags & 64);
+ textRegion.combinationOperator = (textRegionSegmentFlags >> 7) & 3;
+ textRegion.defaultPixelValue = (textRegionSegmentFlags >> 9) & 1;
+ textRegion.dsOffset = (textRegionSegmentFlags << 17) >> 27;
+ textRegion.refinementTemplate = (textRegionSegmentFlags >> 15) & 1;
+ if (textRegion.huffman) {
+ var textRegionHuffmanFlags = readUint16(data, position);
+ position += 2;
+ textRegion.huffmanFS = (textRegionHuffmanFlags) & 3;
+ textRegion.huffmanDS = (textRegionHuffmanFlags >> 2) & 3;
+ textRegion.huffmanDT = (textRegionHuffmanFlags >> 4) & 3;
+ textRegion.huffmanRefinementDW = (textRegionHuffmanFlags >> 6) & 3;
+ textRegion.huffmanRefinementDH = (textRegionHuffmanFlags >> 8) & 3;
+ textRegion.huffmanRefinementDX = (textRegionHuffmanFlags >> 10) & 3;
+ textRegion.huffmanRefinementDY = (textRegionHuffmanFlags >> 12) & 3;
+ textRegion.huffmanRefinementSizeSelector =
+ !!(textRegionHuffmanFlags & 14);
+ }
+ if (textRegion.refinement && !textRegion.refinementTemplate) {
+ at = [];
+ for (i = 0; i < 2; i++) {
+ at.push({
+ x: readInt8(data, position),
+ y: readInt8(data, position + 1)
+ });
+ position += 2;
+ }
+ textRegion.refinementAt = at;
+ }
+ textRegion.numberOfSymbolInstances = readUint32(data, position);
+ position += 4;
+ // TODO 7.4.3.1.7 Symbol ID Huffman table decoding
+ if (textRegion.huffman) {
+ error('JBIG2 error: huffman is not supported');
+ }
+ args = [textRegion, header.referredTo, data, position, end];
+ break;
+ case 38: // ImmediateGenericRegion
+ case 39: // ImmediateLosslessGenericRegion
+ var genericRegion = {};
+ genericRegion.info = readRegionSegmentInformation(data, position);
+ position += RegionSegmentInformationFieldLength;
+ var genericRegionSegmentFlags = data[position++];
+ genericRegion.mmr = !!(genericRegionSegmentFlags & 1);
+ genericRegion.template = (genericRegionSegmentFlags >> 1) & 3;
+ genericRegion.prediction = !!(genericRegionSegmentFlags & 8);
+ if (!genericRegion.mmr) {
+ atLength = genericRegion.template === 0 ? 4 : 1;
+ at = [];
+ for (i = 0; i < atLength; i++) {
+ at.push({
+ x: readInt8(data, position),
+ y: readInt8(data, position + 1)
+ });
+ position += 2;
+ }
+ genericRegion.at = at;
+ }
+ args = [genericRegion, data, position, end];
+ break;
+ case 48: // PageInformation
+ var pageInfo = {
+ width: readUint32(data, position),
+ height: readUint32(data, position + 4),
+ resolutionX: readUint32(data, position + 8),
+ resolutionY: readUint32(data, position + 12)
+ };
+ if (pageInfo.height === 0xFFFFFFFF) {
+ delete pageInfo.height;
+ }
+ var pageSegmentFlags = data[position + 16];
+ var pageStripingInformatiom = readUint16(data, position + 17);
+ pageInfo.lossless = !!(pageSegmentFlags & 1);
+ pageInfo.refinement = !!(pageSegmentFlags & 2);
+ pageInfo.defaultPixelValue = (pageSegmentFlags >> 2) & 1;
+ pageInfo.combinationOperator = (pageSegmentFlags >> 3) & 3;
+ pageInfo.requiresBuffer = !!(pageSegmentFlags & 32);
+ pageInfo.combinationOperatorOverride = !!(pageSegmentFlags & 64);
+ args = [pageInfo];
+ break;
+ case 49: // EndOfPage
+ break;
+ case 50: // EndOfStripe
+ break;
+ case 51: // EndOfFile
+ break;
+ case 62: // 7.4.15 defines 2 extension types which
+ // are comments and can be ignored.
+ break;
+ default:
+ error('JBIG2 error: segment type ' + header.typeName + '(' +
+ header.type + ') is not implemented');
+ }
+ var callbackName = 'on' + header.typeName;
+ if (callbackName in visitor) {
+ visitor[callbackName].apply(visitor, args);
+ }
+ }
+
+ function processSegments(segments, visitor) {
+ for (var i = 0, ii = segments.length; i < ii; i++) {
+ processSegment(segments[i], visitor);
+ }
+ }
+
+ function parseJbig2(data, start, end) {
+ var position = start;
+ if (data[position] !== 0x97 || data[position + 1] !== 0x4A ||
+ data[position + 2] !== 0x42 || data[position + 3] !== 0x32 ||
+ data[position + 4] !== 0x0D || data[position + 5] !== 0x0A ||
+ data[position + 6] !== 0x1A || data[position + 7] !== 0x0A) {
+ error('JBIG2 error: invalid header');
+ }
+ var header = {};
+ position += 8;
+ var flags = data[position++];
+ header.randomAccess = !(flags & 1);
+ if (!(flags & 2)) {
+ header.numberOfPages = readUint32(data, position);
+ position += 4;
+ }
+ var segments = readSegments(header, data, position, end);
+ error('Not implemented');
+ // processSegments(segments, new SimpleSegmentVisitor());
+ }
+
+ function parseJbig2Chunks(chunks) {
+ var visitor = new SimpleSegmentVisitor();
+ for (var i = 0, ii = chunks.length; i < ii; i++) {
+ var chunk = chunks[i];
+ var segments = readSegments({}, chunk.data, chunk.start, chunk.end);
+ processSegments(segments, visitor);
+ }
+ return visitor.buffer;
+ }
+
+ function SimpleSegmentVisitor() {}
+
+ SimpleSegmentVisitor.prototype = {
+ onPageInformation: function SimpleSegmentVisitor_onPageInformation(info) {
+ this.currentPageInfo = info;
+ var rowSize = (info.width + 7) >> 3;
+ var buffer = new Uint8Array(rowSize * info.height);
+ // The contents of ArrayBuffers are initialized to 0.
+ // Fill the buffer with 0xFF only if info.defaultPixelValue is set
+ if (info.defaultPixelValue) {
+ for (var i = 0, ii = buffer.length; i < ii; i++) {
+ buffer[i] = 0xFF;
+ }
+ }
+ this.buffer = buffer;
+ },
+ drawBitmap: function SimpleSegmentVisitor_drawBitmap(regionInfo, bitmap) {
+ var pageInfo = this.currentPageInfo;
+ var width = regionInfo.width, height = regionInfo.height;
+ var rowSize = (pageInfo.width + 7) >> 3;
+ var combinationOperator = pageInfo.combinationOperatorOverride ?
+ regionInfo.combinationOperator : pageInfo.combinationOperator;
+ var buffer = this.buffer;
+ var mask0 = 128 >> (regionInfo.x & 7);
+ var offset0 = regionInfo.y * rowSize + (regionInfo.x >> 3);
+ var i, j, mask, offset;
+ switch (combinationOperator) {
+ case 0: // OR
+ for (i = 0; i < height; i++) {
+ mask = mask0;
+ offset = offset0;
+ for (j = 0; j < width; j++) {
+ if (bitmap[i][j]) {
+ buffer[offset] |= mask;
+ }
+ mask >>= 1;
+ if (!mask) {
+ mask = 128;
+ offset++;
+ }
+ }
+ offset0 += rowSize;
+ }
+ break;
+ case 2: // XOR
+ for (i = 0; i < height; i++) {
+ mask = mask0;
+ offset = offset0;
+ for (j = 0; j < width; j++) {
+ if (bitmap[i][j]) {
+ buffer[offset] ^= mask;
+ }
+ mask >>= 1;
+ if (!mask) {
+ mask = 128;
+ offset++;
+ }
+ }
+ offset0 += rowSize;
+ }
+ break;
+ default:
+ error('JBIG2 error: operator ' + combinationOperator +
+ ' is not supported');
+ }
+ },
+ onImmediateGenericRegion:
+ function SimpleSegmentVisitor_onImmediateGenericRegion(region, data,
+ start, end) {
+ var regionInfo = region.info;
+ var decodingContext = new DecodingContext(data, start, end);
+ var bitmap = decodeBitmap(region.mmr, regionInfo.width, regionInfo.height,
+ region.template, region.prediction, null,
+ region.at, decodingContext);
+ this.drawBitmap(regionInfo, bitmap);
+ },
+ onImmediateLosslessGenericRegion:
+ function SimpleSegmentVisitor_onImmediateLosslessGenericRegion() {
+ this.onImmediateGenericRegion.apply(this, arguments);
+ },
+ onSymbolDictionary:
+ function SimpleSegmentVisitor_onSymbolDictionary(dictionary,
+ currentSegment,
+ referredSegments,
+ data, start, end) {
+ var huffmanTables;
+ if (dictionary.huffman) {
+ error('JBIG2 error: huffman is not supported');
+ }
+
+ // Combines exported symbols from all referred segments
+ var symbols = this.symbols;
+ if (!symbols) {
+ this.symbols = symbols = {};
+ }
+
+ var inputSymbols = [];
+ for (var i = 0, ii = referredSegments.length; i < ii; i++) {
+ inputSymbols = inputSymbols.concat(symbols[referredSegments[i]]);
+ }
+
+ var decodingContext = new DecodingContext(data, start, end);
+ symbols[currentSegment] = decodeSymbolDictionary(dictionary.huffman,
+ dictionary.refinement, inputSymbols, dictionary.numberOfNewSymbols,
+ dictionary.numberOfExportedSymbols, huffmanTables,
+ dictionary.template, dictionary.at,
+ dictionary.refinementTemplate, dictionary.refinementAt,
+ decodingContext);
+ },
+ onImmediateTextRegion:
+ function SimpleSegmentVisitor_onImmediateTextRegion(region,
+ referredSegments,
+ data, start, end) {
+ var regionInfo = region.info;
+ var huffmanTables;
+
+ // Combines exported symbols from all referred segments
+ var symbols = this.symbols;
+ var inputSymbols = [];
+ for (var i = 0, ii = referredSegments.length; i < ii; i++) {
+ inputSymbols = inputSymbols.concat(symbols[referredSegments[i]]);
+ }
+ var symbolCodeLength = log2(inputSymbols.length);
+
+ var decodingContext = new DecodingContext(data, start, end);
+ var bitmap = decodeTextRegion(region.huffman, region.refinement,
+ regionInfo.width, regionInfo.height, region.defaultPixelValue,
+ region.numberOfSymbolInstances, region.stripSize, inputSymbols,
+ symbolCodeLength, region.transposed, region.dsOffset,
+ region.referenceCorner, region.combinationOperator, huffmanTables,
+ region.refinementTemplate, region.refinementAt, decodingContext);
+ this.drawBitmap(regionInfo, bitmap);
+ },
+ onImmediateLosslessTextRegion:
+ function SimpleSegmentVisitor_onImmediateLosslessTextRegion() {
+ this.onImmediateTextRegion.apply(this, arguments);
+ }
+ };
+
+ function Jbig2Image() {}
+
+ Jbig2Image.prototype = {
+ parseChunks: function Jbig2Image_parseChunks(chunks) {
+ return parseJbig2Chunks(chunks);
+ }
+ };
+
+ return Jbig2Image;
+})();
+
+
+var bidi = PDFJS.bidi = (function bidiClosure() {
+ // Character types for symbols from 0000 to 00FF.
+ var baseTypes = [
+ 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'S', 'B', 'S', 'WS',
+ 'B', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN',
+ 'BN', 'BN', 'B', 'B', 'B', 'S', 'WS', 'ON', 'ON', 'ET', 'ET', 'ET', 'ON',
+ 'ON', 'ON', 'ON', 'ON', 'ON', 'CS', 'ON', 'CS', 'ON', 'EN', 'EN', 'EN',
+ 'EN', 'EN', 'EN', 'EN', 'EN', 'EN', 'EN', 'ON', 'ON', 'ON', 'ON', 'ON',
+ 'ON', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L',
+ 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'ON', 'ON',
+ 'ON', 'ON', 'ON', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L',
+ 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L',
+ 'L', 'ON', 'ON', 'ON', 'ON', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'B', 'BN',
+ 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN',
+ 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN',
+ 'BN', 'CS', 'ON', 'ET', 'ET', 'ET', 'ET', 'ON', 'ON', 'ON', 'ON', 'L', 'ON',
+ 'ON', 'ON', 'ON', 'ON', 'ET', 'ET', 'EN', 'EN', 'ON', 'L', 'ON', 'ON', 'ON',
+ 'EN', 'L', 'ON', 'ON', 'ON', 'ON', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L',
+ 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L',
+ 'L', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L',
+ 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L',
+ 'L', 'L', 'L', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L'
+ ];
+
+ // Character types for symbols from 0600 to 06FF
+ var arabicTypes = [
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'CS', 'AL', 'ON', 'ON', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM',
+ 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN',
+ 'AN', 'ET', 'AN', 'AN', 'AL', 'AL', 'AL', 'NSM', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM',
+ 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'ON', 'NSM',
+ 'NSM', 'NSM', 'NSM', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL',
+ 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL'
+ ];
+
+ function isOdd(i) {
+ return (i & 1) !== 0;
+ }
+
+ function isEven(i) {
+ return (i & 1) === 0;
+ }
+
+ function findUnequal(arr, start, value) {
+ for (var j = start, jj = arr.length; j < jj; ++j) {
+ if (arr[j] !== value) {
+ return j;
+ }
+ }
+ return j;
+ }
+
+ function setValues(arr, start, end, value) {
+ for (var j = start; j < end; ++j) {
+ arr[j] = value;
+ }
+ }
+
+ function reverseValues(arr, start, end) {
+ for (var i = start, j = end - 1; i < j; ++i, --j) {
+ var temp = arr[i];
+ arr[i] = arr[j];
+ arr[j] = temp;
+ }
+ }
+
+ function createBidiText(str, isLTR, vertical) {
+ return {
+ str: str,
+ dir: (vertical ? 'ttb' : (isLTR ? 'ltr' : 'rtl'))
+ };
+ }
+
+ // These are used in bidi(), which is called frequently. We re-use them on
+ // each call to avoid unnecessary allocations.
+ var chars = [];
+ var types = [];
+
+ function bidi(str, startLevel, vertical) {
+ var isLTR = true;
+ var strLength = str.length;
+ if (strLength === 0 || vertical) {
+ return createBidiText(str, isLTR, vertical);
+ }
+
+ // Get types and fill arrays
+ chars.length = strLength;
+ types.length = strLength;
+ var numBidi = 0;
+
+ var i, ii;
+ for (i = 0; i < strLength; ++i) {
+ chars[i] = str.charAt(i);
+
+ var charCode = str.charCodeAt(i);
+ var charType = 'L';
+ if (charCode <= 0x00ff) {
+ charType = baseTypes[charCode];
+ } else if (0x0590 <= charCode && charCode <= 0x05f4) {
+ charType = 'R';
+ } else if (0x0600 <= charCode && charCode <= 0x06ff) {
+ charType = arabicTypes[charCode & 0xff];
+ } else if (0x0700 <= charCode && charCode <= 0x08AC) {
+ charType = 'AL';
+ }
+ if (charType === 'R' || charType === 'AL' || charType === 'AN') {
+ numBidi++;
+ }
+ types[i] = charType;
+ }
+
+ // Detect the bidi method
+ // - If there are no rtl characters then no bidi needed
+ // - If less than 30% chars are rtl then string is primarily ltr
+ // - If more than 30% chars are rtl then string is primarily rtl
+ if (numBidi === 0) {
+ isLTR = true;
+ return createBidiText(str, isLTR);
+ }
+
+ if (startLevel === -1) {
+ if ((strLength / numBidi) < 0.3) {
+ isLTR = true;
+ startLevel = 0;
+ } else {
+ isLTR = false;
+ startLevel = 1;
+ }
+ }
+
+ var levels = [];
+ for (i = 0; i < strLength; ++i) {
+ levels[i] = startLevel;
+ }
+
+ /*
+ X1-X10: skip most of this, since we are NOT doing the embeddings.
+ */
+ var e = (isOdd(startLevel) ? 'R' : 'L');
+ var sor = e;
+ var eor = sor;
+
+ /*
+ W1. Examine each non-spacing mark (NSM) in the level run, and change the
+ type of the NSM to the type of the previous character. If the NSM is at the
+ start of the level run, it will get the type of sor.
+ */
+ var lastType = sor;
+ for (i = 0; i < strLength; ++i) {
+ if (types[i] === 'NSM') {
+ types[i] = lastType;
+ } else {
+ lastType = types[i];
+ }
+ }
+
+ /*
+ W2. Search backwards from each instance of a European number until the
+ first strong type (R, L, AL, or sor) is found. If an AL is found, change
+ the type of the European number to Arabic number.
+ */
+ lastType = sor;
+ var t;
+ for (i = 0; i < strLength; ++i) {
+ t = types[i];
+ if (t === 'EN') {
+ types[i] = (lastType === 'AL') ? 'AN' : 'EN';
+ } else if (t === 'R' || t === 'L' || t === 'AL') {
+ lastType = t;
+ }
+ }
+
+ /*
+ W3. Change all ALs to R.
+ */
+ for (i = 0; i < strLength; ++i) {
+ t = types[i];
+ if (t === 'AL') {
+ types[i] = 'R';
+ }
+ }
+
+ /*
+ W4. A single European separator between two European numbers changes to a
+ European number. A single common separator between two numbers of the same
+ type changes to that type:
+ */
+ for (i = 1; i < strLength - 1; ++i) {
+ if (types[i] === 'ES' && types[i - 1] === 'EN' && types[i + 1] === 'EN') {
+ types[i] = 'EN';
+ }
+ if (types[i] === 'CS' &&
+ (types[i - 1] === 'EN' || types[i - 1] === 'AN') &&
+ types[i + 1] === types[i - 1]) {
+ types[i] = types[i - 1];
+ }
+ }
+
+ /*
+ W5. A sequence of European terminators adjacent to European numbers changes
+ to all European numbers:
+ */
+ for (i = 0; i < strLength; ++i) {
+ if (types[i] === 'EN') {
+ // do before
+ var j;
+ for (j = i - 1; j >= 0; --j) {
+ if (types[j] !== 'ET') {
+ break;
+ }
+ types[j] = 'EN';
+ }
+ // do after
+ for (j = i + 1; j < strLength; --j) {
+ if (types[j] !== 'ET') {
+ break;
+ }
+ types[j] = 'EN';
+ }
+ }
+ }
+
+ /*
+ W6. Otherwise, separators and terminators change to Other Neutral:
+ */
+ for (i = 0; i < strLength; ++i) {
+ t = types[i];
+ if (t === 'WS' || t === 'ES' || t === 'ET' || t === 'CS') {
+ types[i] = 'ON';
+ }
+ }
+
+ /*
+ W7. Search backwards from each instance of a European number until the
+ first strong type (R, L, or sor) is found. If an L is found, then change
+ the type of the European number to L.
+ */
+ lastType = sor;
+ for (i = 0; i < strLength; ++i) {
+ t = types[i];
+ if (t === 'EN') {
+ types[i] = ((lastType === 'L') ? 'L' : 'EN');
+ } else if (t === 'R' || t === 'L') {
+ lastType = t;
+ }
+ }
+
+ /*
+ N1. A sequence of neutrals takes the direction of the surrounding strong
+ text if the text on both sides has the same direction. European and Arabic
+ numbers are treated as though they were R. Start-of-level-run (sor) and
+ end-of-level-run (eor) are used at level run boundaries.
+ */
+ for (i = 0; i < strLength; ++i) {
+ if (types[i] === 'ON') {
+ var end = findUnequal(types, i + 1, 'ON');
+ var before = sor;
+ if (i > 0) {
+ before = types[i - 1];
+ }
+
+ var after = eor;
+ if (end + 1 < strLength) {
+ after = types[end + 1];
+ }
+ if (before !== 'L') {
+ before = 'R';
+ }
+ if (after !== 'L') {
+ after = 'R';
+ }
+ if (before === after) {
+ setValues(types, i, end, before);
+ }
+ i = end - 1; // reset to end (-1 so next iteration is ok)
+ }
+ }
+
+ /*
+ N2. Any remaining neutrals take the embedding direction.
+ */
+ for (i = 0; i < strLength; ++i) {
+ if (types[i] === 'ON') {
+ types[i] = e;
+ }
+ }
+
+ /*
+ I1. For all characters with an even (left-to-right) embedding direction,
+ those of type R go up one level and those of type AN or EN go up two
+ levels.
+ I2. For all characters with an odd (right-to-left) embedding direction,
+ those of type L, EN or AN go up one level.
+ */
+ for (i = 0; i < strLength; ++i) {
+ t = types[i];
+ if (isEven(levels[i])) {
+ if (t === 'R') {
+ levels[i] += 1;
+ } else if (t === 'AN' || t === 'EN') {
+ levels[i] += 2;
+ }
+ } else { // isOdd
+ if (t === 'L' || t === 'AN' || t === 'EN') {
+ levels[i] += 1;
+ }
+ }
+ }
+
+ /*
+ L1. On each line, reset the embedding level of the following characters to
+ the paragraph embedding level:
+
+ segment separators,
+ paragraph separators,
+ any sequence of whitespace characters preceding a segment separator or
+ paragraph separator, and any sequence of white space characters at the end
+ of the line.
+ */
+
+ // don't bother as text is only single line
+
+ /*
+ L2. From the highest level found in the text to the lowest odd level on
+ each line, reverse any contiguous sequence of characters that are at that
+ level or higher.
+ */
+
+ // find highest level & lowest odd level
+ var highestLevel = -1;
+ var lowestOddLevel = 99;
+ var level;
+ for (i = 0, ii = levels.length; i < ii; ++i) {
+ level = levels[i];
+ if (highestLevel < level) {
+ highestLevel = level;
+ }
+ if (lowestOddLevel > level && isOdd(level)) {
+ lowestOddLevel = level;
+ }
+ }
+
+ // now reverse between those limits
+ for (level = highestLevel; level >= lowestOddLevel; --level) {
+ // find segments to reverse
+ var start = -1;
+ for (i = 0, ii = levels.length; i < ii; ++i) {
+ if (levels[i] < level) {
+ if (start >= 0) {
+ reverseValues(chars, start, i);
+ start = -1;
+ }
+ } else if (start < 0) {
+ start = i;
+ }
+ }
+ if (start >= 0) {
+ reverseValues(chars, start, levels.length);
+ }
+ }
+
+ /*
+ L3. Combining marks applied to a right-to-left base character will at this
+ point precede their base character. If the rendering engine expects them to
+ follow the base characters in the final display process, then the ordering
+ of the marks and the base character must be reversed.
+ */
+
+ // don't bother for now
+
+ /*
+ L4. A character that possesses the mirrored property as specified by
+ Section 4.7, Mirrored, must be depicted by a mirrored glyph if the resolved
+ directionality of that character is R.
+ */
+
+ // don't mirror as characters are already mirrored in the pdf
+
+ // Finally, return string
+ var result = '';
+ for (i = 0, ii = chars.length; i < ii; ++i) {
+ var ch = chars[i];
+ if (ch !== '<' && ch !== '>') {
+ result += ch;
+ }
+ }
+ return createBidiText(result, isLTR);
+ }
+
+ return bidi;
+})();
+
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+/* Copyright 2014 Opera Software ASA
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ *
+ * Based on https://code.google.com/p/smhasher/wiki/MurmurHash3.
+ * Hashes roughly 100 KB per millisecond on i7 3.4 GHz.
+ */
+/* globals Uint32ArrayView */
+
+'use strict';
+
+var MurmurHash3_64 = (function MurmurHash3_64Closure (seed) {
+ // Workaround for missing math precison in JS.
+ var MASK_HIGH = 0xffff0000;
+ var MASK_LOW = 0xffff;
+
+ function MurmurHash3_64 (seed) {
+ var SEED = 0xc3d2e1f0;
+ this.h1 = seed ? seed & 0xffffffff : SEED;
+ this.h2 = seed ? seed & 0xffffffff : SEED;
+ }
+
+ var alwaysUseUint32ArrayView = false;
+ // old webkits have issues with non-aligned arrays
+ try {
+ new Uint32Array(new Uint8Array(5).buffer, 0, 1);
+ } catch (e) {
+ alwaysUseUint32ArrayView = true;
+ }
+
+ MurmurHash3_64.prototype = {
+ update: function MurmurHash3_64_update(input) {
+ var useUint32ArrayView = alwaysUseUint32ArrayView;
+ var i;
+ if (typeof input === 'string') {
+ var data = new Uint8Array(input.length * 2);
+ var length = 0;
+ for (i = 0; i < input.length; i++) {
+ var code = input.charCodeAt(i);
+ if (code <= 0xff) {
+ data[length++] = code;
+ }
+ else {
+ data[length++] = code >>> 8;
+ data[length++] = code & 0xff;
+ }
+ }
+ } else if (input instanceof Uint8Array) {
+ data = input;
+ length = data.length;
+ } else if (typeof input === 'object' && ('length' in input)) {
+ // processing regular arrays as well, e.g. for IE9
+ data = input;
+ length = data.length;
+ useUint32ArrayView = true;
+ } else {
+ throw new Error('Wrong data format in MurmurHash3_64_update. ' +
+ 'Input must be a string or array.');
+ }
+
+ var blockCounts = length >> 2;
+ var tailLength = length - blockCounts * 4;
+ // we don't care about endianness here
+ var dataUint32 = useUint32ArrayView ?
+ new Uint32ArrayView(data, blockCounts) :
+ new Uint32Array(data.buffer, 0, blockCounts);
+ var k1 = 0;
+ var k2 = 0;
+ var h1 = this.h1;
+ var h2 = this.h2;
+ var C1 = 0xcc9e2d51;
+ var C2 = 0x1b873593;
+ var C1_LOW = C1 & MASK_LOW;
+ var C2_LOW = C2 & MASK_LOW;
+
+ for (i = 0; i < blockCounts; i++) {
+ if (i & 1) {
+ k1 = dataUint32[i];
+ k1 = (k1 * C1 & MASK_HIGH) | (k1 * C1_LOW & MASK_LOW);
+ k1 = k1 << 15 | k1 >>> 17;
+ k1 = (k1 * C2 & MASK_HIGH) | (k1 * C2_LOW & MASK_LOW);
+ h1 ^= k1;
+ h1 = h1 << 13 | h1 >>> 19;
+ h1 = h1 * 5 + 0xe6546b64;
+ } else {
+ k2 = dataUint32[i];
+ k2 = (k2 * C1 & MASK_HIGH) | (k2 * C1_LOW & MASK_LOW);
+ k2 = k2 << 15 | k2 >>> 17;
+ k2 = (k2 * C2 & MASK_HIGH) | (k2 * C2_LOW & MASK_LOW);
+ h2 ^= k2;
+ h2 = h2 << 13 | h2 >>> 19;
+ h2 = h2 * 5 + 0xe6546b64;
+ }
+ }
+
+ k1 = 0;
+
+ switch (tailLength) {
+ case 3:
+ k1 ^= data[blockCounts * 4 + 2] << 16;
+ /* falls through */
+ case 2:
+ k1 ^= data[blockCounts * 4 + 1] << 8;
+ /* falls through */
+ case 1:
+ k1 ^= data[blockCounts * 4];
+ /* falls through */
+ k1 = (k1 * C1 & MASK_HIGH) | (k1 * C1_LOW & MASK_LOW);
+ k1 = k1 << 15 | k1 >>> 17;
+ k1 = (k1 * C2 & MASK_HIGH) | (k1 * C2_LOW & MASK_LOW);
+ if (blockCounts & 1) {
+ h1 ^= k1;
+ } else {
+ h2 ^= k1;
+ }
+ }
+
+ this.h1 = h1;
+ this.h2 = h2;
+ return this;
+ },
+
+ hexdigest: function MurmurHash3_64_hexdigest () {
+ var h1 = this.h1;
+ var h2 = this.h2;
+
+ h1 ^= h2 >>> 1;
+ h1 = (h1 * 0xed558ccd & MASK_HIGH) | (h1 * 0x8ccd & MASK_LOW);
+ h2 = (h2 * 0xff51afd7 & MASK_HIGH) |
+ (((h2 << 16 | h1 >>> 16) * 0xafd7ed55 & MASK_HIGH) >>> 16);
+ h1 ^= h2 >>> 1;
+ h1 = (h1 * 0x1a85ec53 & MASK_HIGH) | (h1 * 0xec53 & MASK_LOW);
+ h2 = (h2 * 0xc4ceb9fe & MASK_HIGH) |
+ (((h2 << 16 | h1 >>> 16) * 0xb9fe1a85 & MASK_HIGH) >>> 16);
+ h1 ^= h2 >>> 1;
+
+ for (var i = 0, arr = [h1, h2], str = ''; i < arr.length; i++) {
+ var hex = (arr[i] >>> 0).toString(16);
+ while (hex.length < 8) {
+ hex = '0' + hex;
+ }
+ str += hex;
+ }
+
+ return str;
+ }
+ };
+
+ return MurmurHash3_64;
+})();
+
+
+}).call((typeof window === 'undefined') ? this : window);
+
+if (!PDFJS.workerSrc && typeof document !== 'undefined') {
+ // workerSrc is not set -- using last script url to define default location
+ PDFJS.workerSrc = (function () {
+ 'use strict';
+ var scriptTagContainer = document.body ||
+ document.getElementsByTagName('head')[0];
+ var pdfjsSrc = scriptTagContainer.lastChild.src;
+ return pdfjsSrc && pdfjsSrc.replace(/\.js$/i, '.worker.js');
+ })();
+}
+
+
