pdf.image_decoders.js 360 KB

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  1. /**
  2. * @licstart The following is the entire license notice for the
  3. * Javascript code in this page
  4. *
  5. * Copyright 2021 Mozilla Foundation
  6. *
  7. * Licensed under the Apache License, Version 2.0 (the "License");
  8. * you may not use this file except in compliance with the License.
  9. * You may obtain a copy of the License at
  10. *
  11. * http://www.apache.org/licenses/LICENSE-2.0
  12. *
  13. * Unless required by applicable law or agreed to in writing, software
  14. * distributed under the License is distributed on an "AS IS" BASIS,
  15. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16. * See the License for the specific language governing permissions and
  17. * limitations under the License.
  18. *
  19. * @licend The above is the entire license notice for the
  20. * Javascript code in this page
  21. */
  22. (function webpackUniversalModuleDefinition(root, factory) {
  23. if(typeof exports === 'object' && typeof module === 'object')
  24. module.exports = factory();
  25. else if(typeof define === 'function' && define.amd)
  26. define("pdfjs-dist/image_decoders/pdf.image_decoders", [], factory);
  27. else if(typeof exports === 'object')
  28. exports["pdfjs-dist/image_decoders/pdf.image_decoders"] = factory();
  29. else
  30. root["pdfjs-dist/image_decoders/pdf.image_decoders"] = root.pdfjsImageDecoders = factory();
  31. })(this, function() {
  32. return /******/ (() => { // webpackBootstrap
  33. /******/ var __webpack_modules__ = ([
  34. /* 0 */,
  35. /* 1 */
  36. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  37. "use strict";
  38. Object.defineProperty(exports, "__esModule", ({
  39. value: true
  40. }));
  41. exports.arrayByteLength = arrayByteLength;
  42. exports.arraysToBytes = arraysToBytes;
  43. exports.assert = assert;
  44. exports.bytesToString = bytesToString;
  45. exports.createObjectURL = createObjectURL;
  46. exports.createPromiseCapability = createPromiseCapability;
  47. exports.createValidAbsoluteUrl = createValidAbsoluteUrl;
  48. exports.escapeString = escapeString;
  49. exports.getModificationDate = getModificationDate;
  50. exports.getVerbosityLevel = getVerbosityLevel;
  51. exports.info = info;
  52. exports.isArrayBuffer = isArrayBuffer;
  53. exports.isArrayEqual = isArrayEqual;
  54. exports.isAscii = isAscii;
  55. exports.isBool = isBool;
  56. exports.isNum = isNum;
  57. exports.isSameOrigin = isSameOrigin;
  58. exports.isString = isString;
  59. exports.objectFromMap = objectFromMap;
  60. exports.objectSize = objectSize;
  61. exports.removeNullCharacters = removeNullCharacters;
  62. exports.setVerbosityLevel = setVerbosityLevel;
  63. exports.shadow = shadow;
  64. exports.string32 = string32;
  65. exports.stringToBytes = stringToBytes;
  66. exports.stringToPDFString = stringToPDFString;
  67. exports.stringToUTF16BEString = stringToUTF16BEString;
  68. exports.stringToUTF8String = stringToUTF8String;
  69. exports.unreachable = unreachable;
  70. exports.utf8StringToString = utf8StringToString;
  71. exports.warn = warn;
  72. exports.VerbosityLevel = exports.Util = exports.UNSUPPORTED_FEATURES = exports.UnknownErrorException = exports.UnexpectedResponseException = exports.TextRenderingMode = exports.StreamType = exports.RenderingIntentFlag = exports.PermissionFlag = exports.PasswordResponses = exports.PasswordException = exports.PageActionEventType = exports.OPS = exports.MissingPDFException = exports.IsLittleEndianCached = exports.IsEvalSupportedCached = exports.InvalidPDFException = exports.ImageKind = exports.IDENTITY_MATRIX = exports.FormatError = exports.FontType = exports.FONT_IDENTITY_MATRIX = exports.DocumentActionEventType = exports.CMapCompressionType = exports.BaseException = exports.AnnotationType = exports.AnnotationStateModelType = exports.AnnotationReviewState = exports.AnnotationReplyType = exports.AnnotationMode = exports.AnnotationMarkedState = exports.AnnotationFlag = exports.AnnotationFieldFlag = exports.AnnotationBorderStyleType = exports.AnnotationActionEventType = exports.AbortException = void 0;
  73. __w_pdfjs_require__(2);
  74. function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  75. function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  76. function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }
  77. function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
  78. function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); }
  79. function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }
  80. function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
  81. function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
  82. function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
  83. function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
  84. function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e2) { throw _e2; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e3) { didErr = true; err = _e3; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
  85. function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
  86. function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
  87. function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  88. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  89. function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  90. function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  91. function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  92. function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
  93. function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  94. function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
  95. function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  96. var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
  97. exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
  98. var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
  99. exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
  100. var RenderingIntentFlag = {
  101. ANY: 0x01,
  102. DISPLAY: 0x02,
  103. PRINT: 0x04,
  104. ANNOTATIONS_FORMS: 0x10,
  105. ANNOTATIONS_STORAGE: 0x20,
  106. ANNOTATIONS_DISABLE: 0x40,
  107. OPLIST: 0x100
  108. };
  109. exports.RenderingIntentFlag = RenderingIntentFlag;
  110. var AnnotationMode = {
  111. DISABLE: 0,
  112. ENABLE: 1,
  113. ENABLE_FORMS: 2,
  114. ENABLE_STORAGE: 3
  115. };
  116. exports.AnnotationMode = AnnotationMode;
  117. var PermissionFlag = {
  118. PRINT: 0x04,
  119. MODIFY_CONTENTS: 0x08,
  120. COPY: 0x10,
  121. MODIFY_ANNOTATIONS: 0x20,
  122. FILL_INTERACTIVE_FORMS: 0x100,
  123. COPY_FOR_ACCESSIBILITY: 0x200,
  124. ASSEMBLE: 0x400,
  125. PRINT_HIGH_QUALITY: 0x800
  126. };
  127. exports.PermissionFlag = PermissionFlag;
  128. var TextRenderingMode = {
  129. FILL: 0,
  130. STROKE: 1,
  131. FILL_STROKE: 2,
  132. INVISIBLE: 3,
  133. FILL_ADD_TO_PATH: 4,
  134. STROKE_ADD_TO_PATH: 5,
  135. FILL_STROKE_ADD_TO_PATH: 6,
  136. ADD_TO_PATH: 7,
  137. FILL_STROKE_MASK: 3,
  138. ADD_TO_PATH_FLAG: 4
  139. };
  140. exports.TextRenderingMode = TextRenderingMode;
  141. var ImageKind = {
  142. GRAYSCALE_1BPP: 1,
  143. RGB_24BPP: 2,
  144. RGBA_32BPP: 3
  145. };
  146. exports.ImageKind = ImageKind;
  147. var AnnotationType = {
  148. TEXT: 1,
  149. LINK: 2,
  150. FREETEXT: 3,
  151. LINE: 4,
  152. SQUARE: 5,
  153. CIRCLE: 6,
  154. POLYGON: 7,
  155. POLYLINE: 8,
  156. HIGHLIGHT: 9,
  157. UNDERLINE: 10,
  158. SQUIGGLY: 11,
  159. STRIKEOUT: 12,
  160. STAMP: 13,
  161. CARET: 14,
  162. INK: 15,
  163. POPUP: 16,
  164. FILEATTACHMENT: 17,
  165. SOUND: 18,
  166. MOVIE: 19,
  167. WIDGET: 20,
  168. SCREEN: 21,
  169. PRINTERMARK: 22,
  170. TRAPNET: 23,
  171. WATERMARK: 24,
  172. THREED: 25,
  173. REDACT: 26
  174. };
  175. exports.AnnotationType = AnnotationType;
  176. var AnnotationStateModelType = {
  177. MARKED: "Marked",
  178. REVIEW: "Review"
  179. };
  180. exports.AnnotationStateModelType = AnnotationStateModelType;
  181. var AnnotationMarkedState = {
  182. MARKED: "Marked",
  183. UNMARKED: "Unmarked"
  184. };
  185. exports.AnnotationMarkedState = AnnotationMarkedState;
  186. var AnnotationReviewState = {
  187. ACCEPTED: "Accepted",
  188. REJECTED: "Rejected",
  189. CANCELLED: "Cancelled",
  190. COMPLETED: "Completed",
  191. NONE: "None"
  192. };
  193. exports.AnnotationReviewState = AnnotationReviewState;
  194. var AnnotationReplyType = {
  195. GROUP: "Group",
  196. REPLY: "R"
  197. };
  198. exports.AnnotationReplyType = AnnotationReplyType;
  199. var AnnotationFlag = {
  200. INVISIBLE: 0x01,
  201. HIDDEN: 0x02,
  202. PRINT: 0x04,
  203. NOZOOM: 0x08,
  204. NOROTATE: 0x10,
  205. NOVIEW: 0x20,
  206. READONLY: 0x40,
  207. LOCKED: 0x80,
  208. TOGGLENOVIEW: 0x100,
  209. LOCKEDCONTENTS: 0x200
  210. };
  211. exports.AnnotationFlag = AnnotationFlag;
  212. var AnnotationFieldFlag = {
  213. READONLY: 0x0000001,
  214. REQUIRED: 0x0000002,
  215. NOEXPORT: 0x0000004,
  216. MULTILINE: 0x0001000,
  217. PASSWORD: 0x0002000,
  218. NOTOGGLETOOFF: 0x0004000,
  219. RADIO: 0x0008000,
  220. PUSHBUTTON: 0x0010000,
  221. COMBO: 0x0020000,
  222. EDIT: 0x0040000,
  223. SORT: 0x0080000,
  224. FILESELECT: 0x0100000,
  225. MULTISELECT: 0x0200000,
  226. DONOTSPELLCHECK: 0x0400000,
  227. DONOTSCROLL: 0x0800000,
  228. COMB: 0x1000000,
  229. RICHTEXT: 0x2000000,
  230. RADIOSINUNISON: 0x2000000,
  231. COMMITONSELCHANGE: 0x4000000
  232. };
  233. exports.AnnotationFieldFlag = AnnotationFieldFlag;
  234. var AnnotationBorderStyleType = {
  235. SOLID: 1,
  236. DASHED: 2,
  237. BEVELED: 3,
  238. INSET: 4,
  239. UNDERLINE: 5
  240. };
  241. exports.AnnotationBorderStyleType = AnnotationBorderStyleType;
  242. var AnnotationActionEventType = {
  243. E: "Mouse Enter",
  244. X: "Mouse Exit",
  245. D: "Mouse Down",
  246. U: "Mouse Up",
  247. Fo: "Focus",
  248. Bl: "Blur",
  249. PO: "PageOpen",
  250. PC: "PageClose",
  251. PV: "PageVisible",
  252. PI: "PageInvisible",
  253. K: "Keystroke",
  254. F: "Format",
  255. V: "Validate",
  256. C: "Calculate"
  257. };
  258. exports.AnnotationActionEventType = AnnotationActionEventType;
  259. var DocumentActionEventType = {
  260. WC: "WillClose",
  261. WS: "WillSave",
  262. DS: "DidSave",
  263. WP: "WillPrint",
  264. DP: "DidPrint"
  265. };
  266. exports.DocumentActionEventType = DocumentActionEventType;
  267. var PageActionEventType = {
  268. O: "PageOpen",
  269. C: "PageClose"
  270. };
  271. exports.PageActionEventType = PageActionEventType;
  272. var StreamType = {
  273. UNKNOWN: "UNKNOWN",
  274. FLATE: "FLATE",
  275. LZW: "LZW",
  276. DCT: "DCT",
  277. JPX: "JPX",
  278. JBIG: "JBIG",
  279. A85: "A85",
  280. AHX: "AHX",
  281. CCF: "CCF",
  282. RLX: "RLX"
  283. };
  284. exports.StreamType = StreamType;
  285. var FontType = {
  286. UNKNOWN: "UNKNOWN",
  287. TYPE1: "TYPE1",
  288. TYPE1STANDARD: "TYPE1STANDARD",
  289. TYPE1C: "TYPE1C",
  290. CIDFONTTYPE0: "CIDFONTTYPE0",
  291. CIDFONTTYPE0C: "CIDFONTTYPE0C",
  292. TRUETYPE: "TRUETYPE",
  293. CIDFONTTYPE2: "CIDFONTTYPE2",
  294. TYPE3: "TYPE3",
  295. OPENTYPE: "OPENTYPE",
  296. TYPE0: "TYPE0",
  297. MMTYPE1: "MMTYPE1"
  298. };
  299. exports.FontType = FontType;
  300. var VerbosityLevel = {
  301. ERRORS: 0,
  302. WARNINGS: 1,
  303. INFOS: 5
  304. };
  305. exports.VerbosityLevel = VerbosityLevel;
  306. var CMapCompressionType = {
  307. NONE: 0,
  308. BINARY: 1,
  309. STREAM: 2
  310. };
  311. exports.CMapCompressionType = CMapCompressionType;
  312. var OPS = {
  313. dependency: 1,
  314. setLineWidth: 2,
  315. setLineCap: 3,
  316. setLineJoin: 4,
  317. setMiterLimit: 5,
  318. setDash: 6,
  319. setRenderingIntent: 7,
  320. setFlatness: 8,
  321. setGState: 9,
  322. save: 10,
  323. restore: 11,
  324. transform: 12,
  325. moveTo: 13,
  326. lineTo: 14,
  327. curveTo: 15,
  328. curveTo2: 16,
  329. curveTo3: 17,
  330. closePath: 18,
  331. rectangle: 19,
  332. stroke: 20,
  333. closeStroke: 21,
  334. fill: 22,
  335. eoFill: 23,
  336. fillStroke: 24,
  337. eoFillStroke: 25,
  338. closeFillStroke: 26,
  339. closeEOFillStroke: 27,
  340. endPath: 28,
  341. clip: 29,
  342. eoClip: 30,
  343. beginText: 31,
  344. endText: 32,
  345. setCharSpacing: 33,
  346. setWordSpacing: 34,
  347. setHScale: 35,
  348. setLeading: 36,
  349. setFont: 37,
  350. setTextRenderingMode: 38,
  351. setTextRise: 39,
  352. moveText: 40,
  353. setLeadingMoveText: 41,
  354. setTextMatrix: 42,
  355. nextLine: 43,
  356. showText: 44,
  357. showSpacedText: 45,
  358. nextLineShowText: 46,
  359. nextLineSetSpacingShowText: 47,
  360. setCharWidth: 48,
  361. setCharWidthAndBounds: 49,
  362. setStrokeColorSpace: 50,
  363. setFillColorSpace: 51,
  364. setStrokeColor: 52,
  365. setStrokeColorN: 53,
  366. setFillColor: 54,
  367. setFillColorN: 55,
  368. setStrokeGray: 56,
  369. setFillGray: 57,
  370. setStrokeRGBColor: 58,
  371. setFillRGBColor: 59,
  372. setStrokeCMYKColor: 60,
  373. setFillCMYKColor: 61,
  374. shadingFill: 62,
  375. beginInlineImage: 63,
  376. beginImageData: 64,
  377. endInlineImage: 65,
  378. paintXObject: 66,
  379. markPoint: 67,
  380. markPointProps: 68,
  381. beginMarkedContent: 69,
  382. beginMarkedContentProps: 70,
  383. endMarkedContent: 71,
  384. beginCompat: 72,
  385. endCompat: 73,
  386. paintFormXObjectBegin: 74,
  387. paintFormXObjectEnd: 75,
  388. beginGroup: 76,
  389. endGroup: 77,
  390. beginAnnotations: 78,
  391. endAnnotations: 79,
  392. beginAnnotation: 80,
  393. endAnnotation: 81,
  394. paintJpegXObject: 82,
  395. paintImageMaskXObject: 83,
  396. paintImageMaskXObjectGroup: 84,
  397. paintImageXObject: 85,
  398. paintInlineImageXObject: 86,
  399. paintInlineImageXObjectGroup: 87,
  400. paintImageXObjectRepeat: 88,
  401. paintImageMaskXObjectRepeat: 89,
  402. paintSolidColorImageMask: 90,
  403. constructPath: 91
  404. };
  405. exports.OPS = OPS;
  406. var UNSUPPORTED_FEATURES = {
  407. unknown: "unknown",
  408. forms: "forms",
  409. javaScript: "javaScript",
  410. signatures: "signatures",
  411. smask: "smask",
  412. shadingPattern: "shadingPattern",
  413. font: "font",
  414. errorTilingPattern: "errorTilingPattern",
  415. errorExtGState: "errorExtGState",
  416. errorXObject: "errorXObject",
  417. errorFontLoadType3: "errorFontLoadType3",
  418. errorFontState: "errorFontState",
  419. errorFontMissing: "errorFontMissing",
  420. errorFontTranslate: "errorFontTranslate",
  421. errorColorSpace: "errorColorSpace",
  422. errorOperatorList: "errorOperatorList",
  423. errorFontToUnicode: "errorFontToUnicode",
  424. errorFontLoadNative: "errorFontLoadNative",
  425. errorFontBuildPath: "errorFontBuildPath",
  426. errorFontGetPath: "errorFontGetPath",
  427. errorMarkedContent: "errorMarkedContent",
  428. errorContentSubStream: "errorContentSubStream"
  429. };
  430. exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;
  431. var PasswordResponses = {
  432. NEED_PASSWORD: 1,
  433. INCORRECT_PASSWORD: 2
  434. };
  435. exports.PasswordResponses = PasswordResponses;
  436. var verbosity = VerbosityLevel.WARNINGS;
  437. function setVerbosityLevel(level) {
  438. if (Number.isInteger(level)) {
  439. verbosity = level;
  440. }
  441. }
  442. function getVerbosityLevel() {
  443. return verbosity;
  444. }
  445. function info(msg) {
  446. if (verbosity >= VerbosityLevel.INFOS) {
  447. console.log("Info: ".concat(msg));
  448. }
  449. }
  450. function warn(msg) {
  451. if (verbosity >= VerbosityLevel.WARNINGS) {
  452. console.log("Warning: ".concat(msg));
  453. }
  454. }
  455. function unreachable(msg) {
  456. throw new Error(msg);
  457. }
  458. function assert(cond, msg) {
  459. if (!cond) {
  460. unreachable(msg);
  461. }
  462. }
  463. function isSameOrigin(baseUrl, otherUrl) {
  464. var base;
  465. try {
  466. base = new URL(baseUrl);
  467. if (!base.origin || base.origin === "null") {
  468. return false;
  469. }
  470. } catch (e) {
  471. return false;
  472. }
  473. var other = new URL(otherUrl, base);
  474. return base.origin === other.origin;
  475. }
  476. function _isValidProtocol(url) {
  477. if (!url) {
  478. return false;
  479. }
  480. switch (url.protocol) {
  481. case "http:":
  482. case "https:":
  483. case "ftp:":
  484. case "mailto:":
  485. case "tel:":
  486. return true;
  487. default:
  488. return false;
  489. }
  490. }
  491. function createValidAbsoluteUrl(url) {
  492. var baseUrl = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
  493. var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
  494. if (!url) {
  495. return null;
  496. }
  497. try {
  498. if (options && typeof url === "string") {
  499. if (options.addDefaultProtocol && url.startsWith("www.")) {
  500. var dots = url.match(/\./g);
  501. if (dots && dots.length >= 2) {
  502. url = "http://".concat(url);
  503. }
  504. }
  505. if (options.tryConvertEncoding) {
  506. try {
  507. url = stringToUTF8String(url);
  508. } catch (ex) {}
  509. }
  510. }
  511. var absoluteUrl = baseUrl ? new URL(url, baseUrl) : new URL(url);
  512. if (_isValidProtocol(absoluteUrl)) {
  513. return absoluteUrl;
  514. }
  515. } catch (ex) {}
  516. return null;
  517. }
  518. function shadow(obj, prop, value) {
  519. Object.defineProperty(obj, prop, {
  520. value: value,
  521. enumerable: true,
  522. configurable: true,
  523. writable: false
  524. });
  525. return value;
  526. }
  527. var BaseException = function BaseExceptionClosure() {
  528. function BaseException(message, name) {
  529. if (this.constructor === BaseException) {
  530. unreachable("Cannot initialize BaseException.");
  531. }
  532. this.message = message;
  533. this.name = name;
  534. }
  535. BaseException.prototype = new Error();
  536. BaseException.constructor = BaseException;
  537. return BaseException;
  538. }();
  539. exports.BaseException = BaseException;
  540. var PasswordException = /*#__PURE__*/function (_BaseException) {
  541. _inherits(PasswordException, _BaseException);
  542. var _super = _createSuper(PasswordException);
  543. function PasswordException(msg, code) {
  544. var _this;
  545. _classCallCheck(this, PasswordException);
  546. _this = _super.call(this, msg, "PasswordException");
  547. _this.code = code;
  548. return _this;
  549. }
  550. return PasswordException;
  551. }(BaseException);
  552. exports.PasswordException = PasswordException;
  553. var UnknownErrorException = /*#__PURE__*/function (_BaseException2) {
  554. _inherits(UnknownErrorException, _BaseException2);
  555. var _super2 = _createSuper(UnknownErrorException);
  556. function UnknownErrorException(msg, details) {
  557. var _this2;
  558. _classCallCheck(this, UnknownErrorException);
  559. _this2 = _super2.call(this, msg, "UnknownErrorException");
  560. _this2.details = details;
  561. return _this2;
  562. }
  563. return UnknownErrorException;
  564. }(BaseException);
  565. exports.UnknownErrorException = UnknownErrorException;
  566. var InvalidPDFException = /*#__PURE__*/function (_BaseException3) {
  567. _inherits(InvalidPDFException, _BaseException3);
  568. var _super3 = _createSuper(InvalidPDFException);
  569. function InvalidPDFException(msg) {
  570. _classCallCheck(this, InvalidPDFException);
  571. return _super3.call(this, msg, "InvalidPDFException");
  572. }
  573. return InvalidPDFException;
  574. }(BaseException);
  575. exports.InvalidPDFException = InvalidPDFException;
  576. var MissingPDFException = /*#__PURE__*/function (_BaseException4) {
  577. _inherits(MissingPDFException, _BaseException4);
  578. var _super4 = _createSuper(MissingPDFException);
  579. function MissingPDFException(msg) {
  580. _classCallCheck(this, MissingPDFException);
  581. return _super4.call(this, msg, "MissingPDFException");
  582. }
  583. return MissingPDFException;
  584. }(BaseException);
  585. exports.MissingPDFException = MissingPDFException;
  586. var UnexpectedResponseException = /*#__PURE__*/function (_BaseException5) {
  587. _inherits(UnexpectedResponseException, _BaseException5);
  588. var _super5 = _createSuper(UnexpectedResponseException);
  589. function UnexpectedResponseException(msg, status) {
  590. var _this3;
  591. _classCallCheck(this, UnexpectedResponseException);
  592. _this3 = _super5.call(this, msg, "UnexpectedResponseException");
  593. _this3.status = status;
  594. return _this3;
  595. }
  596. return UnexpectedResponseException;
  597. }(BaseException);
  598. exports.UnexpectedResponseException = UnexpectedResponseException;
  599. var FormatError = /*#__PURE__*/function (_BaseException6) {
  600. _inherits(FormatError, _BaseException6);
  601. var _super6 = _createSuper(FormatError);
  602. function FormatError(msg) {
  603. _classCallCheck(this, FormatError);
  604. return _super6.call(this, msg, "FormatError");
  605. }
  606. return FormatError;
  607. }(BaseException);
  608. exports.FormatError = FormatError;
  609. var AbortException = /*#__PURE__*/function (_BaseException7) {
  610. _inherits(AbortException, _BaseException7);
  611. var _super7 = _createSuper(AbortException);
  612. function AbortException(msg) {
  613. _classCallCheck(this, AbortException);
  614. return _super7.call(this, msg, "AbortException");
  615. }
  616. return AbortException;
  617. }(BaseException);
  618. exports.AbortException = AbortException;
  619. var NullCharactersRegExp = /\x00/g;
  620. function removeNullCharacters(str) {
  621. if (typeof str !== "string") {
  622. warn("The argument for removeNullCharacters must be a string.");
  623. return str;
  624. }
  625. return str.replace(NullCharactersRegExp, "");
  626. }
  627. function bytesToString(bytes) {
  628. assert(bytes !== null && _typeof(bytes) === "object" && bytes.length !== undefined, "Invalid argument for bytesToString");
  629. var length = bytes.length;
  630. var MAX_ARGUMENT_COUNT = 8192;
  631. if (length < MAX_ARGUMENT_COUNT) {
  632. return String.fromCharCode.apply(null, bytes);
  633. }
  634. var strBuf = [];
  635. for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
  636. var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
  637. var chunk = bytes.subarray(i, chunkEnd);
  638. strBuf.push(String.fromCharCode.apply(null, chunk));
  639. }
  640. return strBuf.join("");
  641. }
  642. function stringToBytes(str) {
  643. assert(typeof str === "string", "Invalid argument for stringToBytes");
  644. var length = str.length;
  645. var bytes = new Uint8Array(length);
  646. for (var i = 0; i < length; ++i) {
  647. bytes[i] = str.charCodeAt(i) & 0xff;
  648. }
  649. return bytes;
  650. }
  651. function arrayByteLength(arr) {
  652. if (arr.length !== undefined) {
  653. return arr.length;
  654. }
  655. assert(arr.byteLength !== undefined, "arrayByteLength - invalid argument.");
  656. return arr.byteLength;
  657. }
  658. function arraysToBytes(arr) {
  659. var length = arr.length;
  660. if (length === 1 && arr[0] instanceof Uint8Array) {
  661. return arr[0];
  662. }
  663. var resultLength = 0;
  664. for (var i = 0; i < length; i++) {
  665. resultLength += arrayByteLength(arr[i]);
  666. }
  667. var pos = 0;
  668. var data = new Uint8Array(resultLength);
  669. for (var _i = 0; _i < length; _i++) {
  670. var item = arr[_i];
  671. if (!(item instanceof Uint8Array)) {
  672. if (typeof item === "string") {
  673. item = stringToBytes(item);
  674. } else {
  675. item = new Uint8Array(item);
  676. }
  677. }
  678. var itemLength = item.byteLength;
  679. data.set(item, pos);
  680. pos += itemLength;
  681. }
  682. return data;
  683. }
  684. function string32(value) {
  685. return String.fromCharCode(value >> 24 & 0xff, value >> 16 & 0xff, value >> 8 & 0xff, value & 0xff);
  686. }
  687. function objectSize(obj) {
  688. return Object.keys(obj).length;
  689. }
  690. function objectFromMap(map) {
  691. var obj = Object.create(null);
  692. var _iterator = _createForOfIteratorHelper(map),
  693. _step;
  694. try {
  695. for (_iterator.s(); !(_step = _iterator.n()).done;) {
  696. var _step$value = _slicedToArray(_step.value, 2),
  697. key = _step$value[0],
  698. value = _step$value[1];
  699. obj[key] = value;
  700. }
  701. } catch (err) {
  702. _iterator.e(err);
  703. } finally {
  704. _iterator.f();
  705. }
  706. return obj;
  707. }
  708. function isLittleEndian() {
  709. var buffer8 = new Uint8Array(4);
  710. buffer8[0] = 1;
  711. var view32 = new Uint32Array(buffer8.buffer, 0, 1);
  712. return view32[0] === 1;
  713. }
  714. var IsLittleEndianCached = {
  715. get value() {
  716. return shadow(this, "value", isLittleEndian());
  717. }
  718. };
  719. exports.IsLittleEndianCached = IsLittleEndianCached;
  720. function isEvalSupported() {
  721. try {
  722. new Function("");
  723. return true;
  724. } catch (e) {
  725. return false;
  726. }
  727. }
  728. var IsEvalSupportedCached = {
  729. get value() {
  730. return shadow(this, "value", isEvalSupported());
  731. }
  732. };
  733. exports.IsEvalSupportedCached = IsEvalSupportedCached;
  734. var hexNumbers = _toConsumableArray(Array(256).keys()).map(function (n) {
  735. return n.toString(16).padStart(2, "0");
  736. });
  737. var Util = /*#__PURE__*/function () {
  738. function Util() {
  739. _classCallCheck(this, Util);
  740. }
  741. _createClass(Util, null, [{
  742. key: "makeHexColor",
  743. value: function makeHexColor(r, g, b) {
  744. return "#".concat(hexNumbers[r]).concat(hexNumbers[g]).concat(hexNumbers[b]);
  745. }
  746. }, {
  747. key: "transform",
  748. value: function transform(m1, m2) {
  749. 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]];
  750. }
  751. }, {
  752. key: "applyTransform",
  753. value: function applyTransform(p, m) {
  754. var xt = p[0] * m[0] + p[1] * m[2] + m[4];
  755. var yt = p[0] * m[1] + p[1] * m[3] + m[5];
  756. return [xt, yt];
  757. }
  758. }, {
  759. key: "applyInverseTransform",
  760. value: function applyInverseTransform(p, m) {
  761. var d = m[0] * m[3] - m[1] * m[2];
  762. var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
  763. var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
  764. return [xt, yt];
  765. }
  766. }, {
  767. key: "getAxialAlignedBoundingBox",
  768. value: function getAxialAlignedBoundingBox(r, m) {
  769. var p1 = Util.applyTransform(r, m);
  770. var p2 = Util.applyTransform(r.slice(2, 4), m);
  771. var p3 = Util.applyTransform([r[0], r[3]], m);
  772. var p4 = Util.applyTransform([r[2], r[1]], m);
  773. 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])];
  774. }
  775. }, {
  776. key: "inverseTransform",
  777. value: function inverseTransform(m) {
  778. var d = m[0] * m[3] - m[1] * m[2];
  779. 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];
  780. }
  781. }, {
  782. key: "apply3dTransform",
  783. value: function apply3dTransform(m, v) {
  784. 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]];
  785. }
  786. }, {
  787. key: "singularValueDecompose2dScale",
  788. value: function singularValueDecompose2dScale(m) {
  789. var transpose = [m[0], m[2], m[1], m[3]];
  790. var a = m[0] * transpose[0] + m[1] * transpose[2];
  791. var b = m[0] * transpose[1] + m[1] * transpose[3];
  792. var c = m[2] * transpose[0] + m[3] * transpose[2];
  793. var d = m[2] * transpose[1] + m[3] * transpose[3];
  794. var first = (a + d) / 2;
  795. var second = Math.sqrt(Math.pow(a + d, 2) - 4 * (a * d - c * b)) / 2;
  796. var sx = first + second || 1;
  797. var sy = first - second || 1;
  798. return [Math.sqrt(sx), Math.sqrt(sy)];
  799. }
  800. }, {
  801. key: "normalizeRect",
  802. value: function normalizeRect(rect) {
  803. var r = rect.slice(0);
  804. if (rect[0] > rect[2]) {
  805. r[0] = rect[2];
  806. r[2] = rect[0];
  807. }
  808. if (rect[1] > rect[3]) {
  809. r[1] = rect[3];
  810. r[3] = rect[1];
  811. }
  812. return r;
  813. }
  814. }, {
  815. key: "intersect",
  816. value: function intersect(rect1, rect2) {
  817. function compare(a, b) {
  818. return a - b;
  819. }
  820. var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare);
  821. var orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare);
  822. var result = [];
  823. rect1 = Util.normalizeRect(rect1);
  824. rect2 = Util.normalizeRect(rect2);
  825. if (orderedX[0] === rect1[0] && orderedX[1] === rect2[0] || orderedX[0] === rect2[0] && orderedX[1] === rect1[0]) {
  826. result[0] = orderedX[1];
  827. result[2] = orderedX[2];
  828. } else {
  829. return null;
  830. }
  831. if (orderedY[0] === rect1[1] && orderedY[1] === rect2[1] || orderedY[0] === rect2[1] && orderedY[1] === rect1[1]) {
  832. result[1] = orderedY[1];
  833. result[3] = orderedY[2];
  834. } else {
  835. return null;
  836. }
  837. return result;
  838. }
  839. }]);
  840. return Util;
  841. }();
  842. exports.Util = Util;
  843. 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];
  844. function stringToPDFString(str) {
  845. var length = str.length,
  846. strBuf = [];
  847. if (str[0] === "\xFE" && str[1] === "\xFF") {
  848. for (var i = 2; i < length; i += 2) {
  849. strBuf.push(String.fromCharCode(str.charCodeAt(i) << 8 | str.charCodeAt(i + 1)));
  850. }
  851. } else if (str[0] === "\xFF" && str[1] === "\xFE") {
  852. for (var _i2 = 2; _i2 < length; _i2 += 2) {
  853. strBuf.push(String.fromCharCode(str.charCodeAt(_i2 + 1) << 8 | str.charCodeAt(_i2)));
  854. }
  855. } else {
  856. for (var _i3 = 0; _i3 < length; ++_i3) {
  857. var code = PDFStringTranslateTable[str.charCodeAt(_i3)];
  858. strBuf.push(code ? String.fromCharCode(code) : str.charAt(_i3));
  859. }
  860. }
  861. return strBuf.join("");
  862. }
  863. function escapeString(str) {
  864. return str.replace(/([()\\\n\r])/g, function (match) {
  865. if (match === "\n") {
  866. return "\\n";
  867. } else if (match === "\r") {
  868. return "\\r";
  869. }
  870. return "\\".concat(match);
  871. });
  872. }
  873. function isAscii(str) {
  874. return /^[\x00-\x7F]*$/.test(str);
  875. }
  876. function stringToUTF16BEString(str) {
  877. var buf = ["\xFE\xFF"];
  878. for (var i = 0, ii = str.length; i < ii; i++) {
  879. var _char = str.charCodeAt(i);
  880. buf.push(String.fromCharCode(_char >> 8 & 0xff), String.fromCharCode(_char & 0xff));
  881. }
  882. return buf.join("");
  883. }
  884. function stringToUTF8String(str) {
  885. return decodeURIComponent(escape(str));
  886. }
  887. function utf8StringToString(str) {
  888. return unescape(encodeURIComponent(str));
  889. }
  890. function isBool(v) {
  891. return typeof v === "boolean";
  892. }
  893. function isNum(v) {
  894. return typeof v === "number";
  895. }
  896. function isString(v) {
  897. return typeof v === "string";
  898. }
  899. function isArrayBuffer(v) {
  900. return _typeof(v) === "object" && v !== null && v.byteLength !== undefined;
  901. }
  902. function isArrayEqual(arr1, arr2) {
  903. if (arr1.length !== arr2.length) {
  904. return false;
  905. }
  906. for (var i = 0, ii = arr1.length; i < ii; i++) {
  907. if (arr1[i] !== arr2[i]) {
  908. return false;
  909. }
  910. }
  911. return true;
  912. }
  913. function getModificationDate() {
  914. var date = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : new Date();
  915. var buffer = [date.getUTCFullYear().toString(), (date.getUTCMonth() + 1).toString().padStart(2, "0"), date.getUTCDate().toString().padStart(2, "0"), date.getUTCHours().toString().padStart(2, "0"), date.getUTCMinutes().toString().padStart(2, "0"), date.getUTCSeconds().toString().padStart(2, "0")];
  916. return buffer.join("");
  917. }
  918. function createPromiseCapability() {
  919. var capability = Object.create(null);
  920. var isSettled = false;
  921. Object.defineProperty(capability, "settled", {
  922. get: function get() {
  923. return isSettled;
  924. }
  925. });
  926. capability.promise = new Promise(function (resolve, reject) {
  927. capability.resolve = function (data) {
  928. isSettled = true;
  929. resolve(data);
  930. };
  931. capability.reject = function (reason) {
  932. isSettled = true;
  933. reject(reason);
  934. };
  935. });
  936. return capability;
  937. }
  938. function createObjectURL(data) {
  939. var contentType = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "";
  940. var forceDataSchema = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  941. if (URL.createObjectURL && !forceDataSchema) {
  942. return URL.createObjectURL(new Blob([data], {
  943. type: contentType
  944. }));
  945. }
  946. var digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
  947. var buffer = "data:".concat(contentType, ";base64,");
  948. for (var i = 0, ii = data.length; i < ii; i += 3) {
  949. var b1 = data[i] & 0xff;
  950. var b2 = data[i + 1] & 0xff;
  951. var b3 = data[i + 2] & 0xff;
  952. var d1 = b1 >> 2,
  953. d2 = (b1 & 3) << 4 | b2 >> 4;
  954. var d3 = i + 1 < ii ? (b2 & 0xf) << 2 | b3 >> 6 : 64;
  955. var d4 = i + 2 < ii ? b3 & 0x3f : 64;
  956. buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
  957. }
  958. return buffer;
  959. }
  960. /***/ }),
  961. /* 2 */
  962. /***/ ((__unused_webpack_module, __unused_webpack_exports, __w_pdfjs_require__) => {
  963. "use strict";
  964. var _is_node = __w_pdfjs_require__(3);
  965. if (typeof globalThis === "undefined" || !globalThis._pdfjsCompatibilityChecked) {
  966. if (typeof globalThis === "undefined" || globalThis.Math !== Math) {
  967. globalThis = __w_pdfjs_require__(4);
  968. }
  969. globalThis._pdfjsCompatibilityChecked = true;
  970. (function checkNodeBtoa() {
  971. if (globalThis.btoa || !_is_node.isNodeJS) {
  972. return;
  973. }
  974. globalThis.btoa = function (chars) {
  975. return Buffer.from(chars, "binary").toString("base64");
  976. };
  977. })();
  978. (function checkNodeAtob() {
  979. if (globalThis.atob || !_is_node.isNodeJS) {
  980. return;
  981. }
  982. globalThis.atob = function (input) {
  983. return Buffer.from(input, "base64").toString("binary");
  984. };
  985. })();
  986. (function checkDOMMatrix() {
  987. if (globalThis.DOMMatrix || !_is_node.isNodeJS) {
  988. return;
  989. }
  990. globalThis.DOMMatrix = __w_pdfjs_require__(57);
  991. })();
  992. (function checkObjectFromEntries() {
  993. if (Object.fromEntries) {
  994. return;
  995. }
  996. __w_pdfjs_require__(58);
  997. })();
  998. (function checkPromise() {})();
  999. (function checkReadableStream() {})();
  1000. }
  1001. /***/ }),
  1002. /* 3 */
  1003. /***/ ((__unused_webpack_module, exports) => {
  1004. "use strict";
  1005. Object.defineProperty(exports, "__esModule", ({
  1006. value: true
  1007. }));
  1008. exports.isNodeJS = void 0;
  1009. function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  1010. var isNodeJS = (typeof process === "undefined" ? "undefined" : _typeof(process)) === "object" && process + "" === "[object process]" && !process.versions.nw && !(process.versions.electron && process.type && process.type !== "browser");
  1011. exports.isNodeJS = isNodeJS;
  1012. /***/ }),
  1013. /* 4 */
  1014. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1015. __w_pdfjs_require__(5);
  1016. module.exports = __w_pdfjs_require__(7);
  1017. /***/ }),
  1018. /* 5 */
  1019. /***/ ((__unused_webpack_module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1020. var $ = __w_pdfjs_require__(6);
  1021. var global = __w_pdfjs_require__(7);
  1022. $({ global: true }, { globalThis: global });
  1023. /***/ }),
  1024. /* 6 */
  1025. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1026. var global = __w_pdfjs_require__(7);
  1027. var getOwnPropertyDescriptor = __w_pdfjs_require__(8).f;
  1028. var createNonEnumerableProperty = __w_pdfjs_require__(37);
  1029. var redefine = __w_pdfjs_require__(40);
  1030. var setGlobal = __w_pdfjs_require__(31);
  1031. var copyConstructorProperties = __w_pdfjs_require__(46);
  1032. var isForced = __w_pdfjs_require__(56);
  1033. module.exports = function (options, source) {
  1034. var TARGET = options.target;
  1035. var GLOBAL = options.global;
  1036. var STATIC = options.stat;
  1037. var FORCED, target, key, targetProperty, sourceProperty, descriptor;
  1038. if (GLOBAL) {
  1039. target = global;
  1040. } else if (STATIC) {
  1041. target = global[TARGET] || setGlobal(TARGET, {});
  1042. } else {
  1043. target = (global[TARGET] || {}).prototype;
  1044. }
  1045. if (target)
  1046. for (key in source) {
  1047. sourceProperty = source[key];
  1048. if (options.noTargetGet) {
  1049. descriptor = getOwnPropertyDescriptor(target, key);
  1050. targetProperty = descriptor && descriptor.value;
  1051. } else
  1052. targetProperty = target[key];
  1053. FORCED = isForced(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);
  1054. if (!FORCED && targetProperty !== undefined) {
  1055. if (typeof sourceProperty === typeof targetProperty)
  1056. continue;
  1057. copyConstructorProperties(sourceProperty, targetProperty);
  1058. }
  1059. if (options.sham || targetProperty && targetProperty.sham) {
  1060. createNonEnumerableProperty(sourceProperty, 'sham', true);
  1061. }
  1062. redefine(target, key, sourceProperty, options);
  1063. }
  1064. };
  1065. /***/ }),
  1066. /* 7 */
  1067. /***/ ((module) => {
  1068. var check = function (it) {
  1069. return it && it.Math == Math && it;
  1070. };
  1071. module.exports = check(typeof globalThis == 'object' && globalThis) || check(typeof window == 'object' && window) || check(typeof self == 'object' && self) || check(typeof global == 'object' && global) || function () {
  1072. return this;
  1073. }() || Function('return this')();
  1074. /***/ }),
  1075. /* 8 */
  1076. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  1077. var DESCRIPTORS = __w_pdfjs_require__(9);
  1078. var propertyIsEnumerableModule = __w_pdfjs_require__(11);
  1079. var createPropertyDescriptor = __w_pdfjs_require__(12);
  1080. var toIndexedObject = __w_pdfjs_require__(13);
  1081. var toPropertyKey = __w_pdfjs_require__(17);
  1082. var has = __w_pdfjs_require__(32);
  1083. var IE8_DOM_DEFINE = __w_pdfjs_require__(35);
  1084. var $getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
  1085. exports.f = DESCRIPTORS ? $getOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {
  1086. O = toIndexedObject(O);
  1087. P = toPropertyKey(P);
  1088. if (IE8_DOM_DEFINE)
  1089. try {
  1090. return $getOwnPropertyDescriptor(O, P);
  1091. } catch (error) {
  1092. }
  1093. if (has(O, P))
  1094. return createPropertyDescriptor(!propertyIsEnumerableModule.f.call(O, P), O[P]);
  1095. };
  1096. /***/ }),
  1097. /* 9 */
  1098. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1099. var fails = __w_pdfjs_require__(10);
  1100. module.exports = !fails(function () {
  1101. return Object.defineProperty({}, 1, {
  1102. get: function () {
  1103. return 7;
  1104. }
  1105. })[1] != 7;
  1106. });
  1107. /***/ }),
  1108. /* 10 */
  1109. /***/ ((module) => {
  1110. module.exports = function (exec) {
  1111. try {
  1112. return !!exec();
  1113. } catch (error) {
  1114. return true;
  1115. }
  1116. };
  1117. /***/ }),
  1118. /* 11 */
  1119. /***/ ((__unused_webpack_module, exports) => {
  1120. "use strict";
  1121. var $propertyIsEnumerable = {}.propertyIsEnumerable;
  1122. var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
  1123. var NASHORN_BUG = getOwnPropertyDescriptor && !$propertyIsEnumerable.call({ 1: 2 }, 1);
  1124. exports.f = NASHORN_BUG ? function propertyIsEnumerable(V) {
  1125. var descriptor = getOwnPropertyDescriptor(this, V);
  1126. return !!descriptor && descriptor.enumerable;
  1127. } : $propertyIsEnumerable;
  1128. /***/ }),
  1129. /* 12 */
  1130. /***/ ((module) => {
  1131. module.exports = function (bitmap, value) {
  1132. return {
  1133. enumerable: !(bitmap & 1),
  1134. configurable: !(bitmap & 2),
  1135. writable: !(bitmap & 4),
  1136. value: value
  1137. };
  1138. };
  1139. /***/ }),
  1140. /* 13 */
  1141. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1142. var IndexedObject = __w_pdfjs_require__(14);
  1143. var requireObjectCoercible = __w_pdfjs_require__(16);
  1144. module.exports = function (it) {
  1145. return IndexedObject(requireObjectCoercible(it));
  1146. };
  1147. /***/ }),
  1148. /* 14 */
  1149. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1150. var fails = __w_pdfjs_require__(10);
  1151. var classof = __w_pdfjs_require__(15);
  1152. var split = ''.split;
  1153. module.exports = fails(function () {
  1154. return !Object('z').propertyIsEnumerable(0);
  1155. }) ? function (it) {
  1156. return classof(it) == 'String' ? split.call(it, '') : Object(it);
  1157. } : Object;
  1158. /***/ }),
  1159. /* 15 */
  1160. /***/ ((module) => {
  1161. var toString = {}.toString;
  1162. module.exports = function (it) {
  1163. return toString.call(it).slice(8, -1);
  1164. };
  1165. /***/ }),
  1166. /* 16 */
  1167. /***/ ((module) => {
  1168. module.exports = function (it) {
  1169. if (it == undefined)
  1170. throw TypeError("Can't call method on " + it);
  1171. return it;
  1172. };
  1173. /***/ }),
  1174. /* 17 */
  1175. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1176. var toPrimitive = __w_pdfjs_require__(18);
  1177. var isSymbol = __w_pdfjs_require__(20);
  1178. module.exports = function (argument) {
  1179. var key = toPrimitive(argument, 'string');
  1180. return isSymbol(key) ? key : String(key);
  1181. };
  1182. /***/ }),
  1183. /* 18 */
  1184. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1185. var isObject = __w_pdfjs_require__(19);
  1186. var isSymbol = __w_pdfjs_require__(20);
  1187. var ordinaryToPrimitive = __w_pdfjs_require__(26);
  1188. var wellKnownSymbol = __w_pdfjs_require__(27);
  1189. var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
  1190. module.exports = function (input, pref) {
  1191. if (!isObject(input) || isSymbol(input))
  1192. return input;
  1193. var exoticToPrim = input[TO_PRIMITIVE];
  1194. var result;
  1195. if (exoticToPrim !== undefined) {
  1196. if (pref === undefined)
  1197. pref = 'default';
  1198. result = exoticToPrim.call(input, pref);
  1199. if (!isObject(result) || isSymbol(result))
  1200. return result;
  1201. throw TypeError("Can't convert object to primitive value");
  1202. }
  1203. if (pref === undefined)
  1204. pref = 'number';
  1205. return ordinaryToPrimitive(input, pref);
  1206. };
  1207. /***/ }),
  1208. /* 19 */
  1209. /***/ ((module) => {
  1210. module.exports = function (it) {
  1211. return typeof it === 'object' ? it !== null : typeof it === 'function';
  1212. };
  1213. /***/ }),
  1214. /* 20 */
  1215. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1216. var getBuiltIn = __w_pdfjs_require__(21);
  1217. var USE_SYMBOL_AS_UID = __w_pdfjs_require__(22);
  1218. module.exports = USE_SYMBOL_AS_UID ? function (it) {
  1219. return typeof it == 'symbol';
  1220. } : function (it) {
  1221. var $Symbol = getBuiltIn('Symbol');
  1222. return typeof $Symbol == 'function' && Object(it) instanceof $Symbol;
  1223. };
  1224. /***/ }),
  1225. /* 21 */
  1226. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1227. var global = __w_pdfjs_require__(7);
  1228. var aFunction = function (variable) {
  1229. return typeof variable == 'function' ? variable : undefined;
  1230. };
  1231. module.exports = function (namespace, method) {
  1232. return arguments.length < 2 ? aFunction(global[namespace]) : global[namespace] && global[namespace][method];
  1233. };
  1234. /***/ }),
  1235. /* 22 */
  1236. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1237. var NATIVE_SYMBOL = __w_pdfjs_require__(23);
  1238. module.exports = NATIVE_SYMBOL && !Symbol.sham && typeof Symbol.iterator == 'symbol';
  1239. /***/ }),
  1240. /* 23 */
  1241. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1242. var V8_VERSION = __w_pdfjs_require__(24);
  1243. var fails = __w_pdfjs_require__(10);
  1244. module.exports = !!Object.getOwnPropertySymbols && !fails(function () {
  1245. var symbol = Symbol();
  1246. return !String(symbol) || !(Object(symbol) instanceof Symbol) || !Symbol.sham && V8_VERSION && V8_VERSION < 41;
  1247. });
  1248. /***/ }),
  1249. /* 24 */
  1250. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1251. var global = __w_pdfjs_require__(7);
  1252. var userAgent = __w_pdfjs_require__(25);
  1253. var process = global.process;
  1254. var Deno = global.Deno;
  1255. var versions = process && process.versions || Deno && Deno.version;
  1256. var v8 = versions && versions.v8;
  1257. var match, version;
  1258. if (v8) {
  1259. match = v8.split('.');
  1260. version = match[0] < 4 ? 1 : match[0] + match[1];
  1261. } else if (userAgent) {
  1262. match = userAgent.match(/Edge\/(\d+)/);
  1263. if (!match || match[1] >= 74) {
  1264. match = userAgent.match(/Chrome\/(\d+)/);
  1265. if (match)
  1266. version = match[1];
  1267. }
  1268. }
  1269. module.exports = version && +version;
  1270. /***/ }),
  1271. /* 25 */
  1272. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1273. var getBuiltIn = __w_pdfjs_require__(21);
  1274. module.exports = getBuiltIn('navigator', 'userAgent') || '';
  1275. /***/ }),
  1276. /* 26 */
  1277. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1278. var isObject = __w_pdfjs_require__(19);
  1279. module.exports = function (input, pref) {
  1280. var fn, val;
  1281. if (pref === 'string' && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input)))
  1282. return val;
  1283. if (typeof (fn = input.valueOf) == 'function' && !isObject(val = fn.call(input)))
  1284. return val;
  1285. if (pref !== 'string' && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input)))
  1286. return val;
  1287. throw TypeError("Can't convert object to primitive value");
  1288. };
  1289. /***/ }),
  1290. /* 27 */
  1291. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1292. var global = __w_pdfjs_require__(7);
  1293. var shared = __w_pdfjs_require__(28);
  1294. var has = __w_pdfjs_require__(32);
  1295. var uid = __w_pdfjs_require__(34);
  1296. var NATIVE_SYMBOL = __w_pdfjs_require__(23);
  1297. var USE_SYMBOL_AS_UID = __w_pdfjs_require__(22);
  1298. var WellKnownSymbolsStore = shared('wks');
  1299. var Symbol = global.Symbol;
  1300. var createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol : Symbol && Symbol.withoutSetter || uid;
  1301. module.exports = function (name) {
  1302. if (!has(WellKnownSymbolsStore, name) || !(NATIVE_SYMBOL || typeof WellKnownSymbolsStore[name] == 'string')) {
  1303. if (NATIVE_SYMBOL && has(Symbol, name)) {
  1304. WellKnownSymbolsStore[name] = Symbol[name];
  1305. } else {
  1306. WellKnownSymbolsStore[name] = createWellKnownSymbol('Symbol.' + name);
  1307. }
  1308. }
  1309. return WellKnownSymbolsStore[name];
  1310. };
  1311. /***/ }),
  1312. /* 28 */
  1313. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1314. var IS_PURE = __w_pdfjs_require__(29);
  1315. var store = __w_pdfjs_require__(30);
  1316. (module.exports = function (key, value) {
  1317. return store[key] || (store[key] = value !== undefined ? value : {});
  1318. })('versions', []).push({
  1319. version: '3.17.3',
  1320. mode: IS_PURE ? 'pure' : 'global',
  1321. copyright: '© 2021 Denis Pushkarev (zloirock.ru)'
  1322. });
  1323. /***/ }),
  1324. /* 29 */
  1325. /***/ ((module) => {
  1326. module.exports = false;
  1327. /***/ }),
  1328. /* 30 */
  1329. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1330. var global = __w_pdfjs_require__(7);
  1331. var setGlobal = __w_pdfjs_require__(31);
  1332. var SHARED = '__core-js_shared__';
  1333. var store = global[SHARED] || setGlobal(SHARED, {});
  1334. module.exports = store;
  1335. /***/ }),
  1336. /* 31 */
  1337. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1338. var global = __w_pdfjs_require__(7);
  1339. module.exports = function (key, value) {
  1340. try {
  1341. Object.defineProperty(global, key, {
  1342. value: value,
  1343. configurable: true,
  1344. writable: true
  1345. });
  1346. } catch (error) {
  1347. global[key] = value;
  1348. }
  1349. return value;
  1350. };
  1351. /***/ }),
  1352. /* 32 */
  1353. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1354. var toObject = __w_pdfjs_require__(33);
  1355. var hasOwnProperty = {}.hasOwnProperty;
  1356. module.exports = Object.hasOwn || function hasOwn(it, key) {
  1357. return hasOwnProperty.call(toObject(it), key);
  1358. };
  1359. /***/ }),
  1360. /* 33 */
  1361. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1362. var requireObjectCoercible = __w_pdfjs_require__(16);
  1363. module.exports = function (argument) {
  1364. return Object(requireObjectCoercible(argument));
  1365. };
  1366. /***/ }),
  1367. /* 34 */
  1368. /***/ ((module) => {
  1369. var id = 0;
  1370. var postfix = Math.random();
  1371. module.exports = function (key) {
  1372. return 'Symbol(' + String(key === undefined ? '' : key) + ')_' + (++id + postfix).toString(36);
  1373. };
  1374. /***/ }),
  1375. /* 35 */
  1376. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1377. var DESCRIPTORS = __w_pdfjs_require__(9);
  1378. var fails = __w_pdfjs_require__(10);
  1379. var createElement = __w_pdfjs_require__(36);
  1380. module.exports = !DESCRIPTORS && !fails(function () {
  1381. return Object.defineProperty(createElement('div'), 'a', {
  1382. get: function () {
  1383. return 7;
  1384. }
  1385. }).a != 7;
  1386. });
  1387. /***/ }),
  1388. /* 36 */
  1389. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1390. var global = __w_pdfjs_require__(7);
  1391. var isObject = __w_pdfjs_require__(19);
  1392. var document = global.document;
  1393. var EXISTS = isObject(document) && isObject(document.createElement);
  1394. module.exports = function (it) {
  1395. return EXISTS ? document.createElement(it) : {};
  1396. };
  1397. /***/ }),
  1398. /* 37 */
  1399. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1400. var DESCRIPTORS = __w_pdfjs_require__(9);
  1401. var definePropertyModule = __w_pdfjs_require__(38);
  1402. var createPropertyDescriptor = __w_pdfjs_require__(12);
  1403. module.exports = DESCRIPTORS ? function (object, key, value) {
  1404. return definePropertyModule.f(object, key, createPropertyDescriptor(1, value));
  1405. } : function (object, key, value) {
  1406. object[key] = value;
  1407. return object;
  1408. };
  1409. /***/ }),
  1410. /* 38 */
  1411. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  1412. var DESCRIPTORS = __w_pdfjs_require__(9);
  1413. var IE8_DOM_DEFINE = __w_pdfjs_require__(35);
  1414. var anObject = __w_pdfjs_require__(39);
  1415. var toPropertyKey = __w_pdfjs_require__(17);
  1416. var $defineProperty = Object.defineProperty;
  1417. exports.f = DESCRIPTORS ? $defineProperty : function defineProperty(O, P, Attributes) {
  1418. anObject(O);
  1419. P = toPropertyKey(P);
  1420. anObject(Attributes);
  1421. if (IE8_DOM_DEFINE)
  1422. try {
  1423. return $defineProperty(O, P, Attributes);
  1424. } catch (error) {
  1425. }
  1426. if ('get' in Attributes || 'set' in Attributes)
  1427. throw TypeError('Accessors not supported');
  1428. if ('value' in Attributes)
  1429. O[P] = Attributes.value;
  1430. return O;
  1431. };
  1432. /***/ }),
  1433. /* 39 */
  1434. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1435. var isObject = __w_pdfjs_require__(19);
  1436. module.exports = function (it) {
  1437. if (!isObject(it)) {
  1438. throw TypeError(String(it) + ' is not an object');
  1439. }
  1440. return it;
  1441. };
  1442. /***/ }),
  1443. /* 40 */
  1444. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1445. var global = __w_pdfjs_require__(7);
  1446. var createNonEnumerableProperty = __w_pdfjs_require__(37);
  1447. var has = __w_pdfjs_require__(32);
  1448. var setGlobal = __w_pdfjs_require__(31);
  1449. var inspectSource = __w_pdfjs_require__(41);
  1450. var InternalStateModule = __w_pdfjs_require__(42);
  1451. var getInternalState = InternalStateModule.get;
  1452. var enforceInternalState = InternalStateModule.enforce;
  1453. var TEMPLATE = String(String).split('String');
  1454. (module.exports = function (O, key, value, options) {
  1455. var unsafe = options ? !!options.unsafe : false;
  1456. var simple = options ? !!options.enumerable : false;
  1457. var noTargetGet = options ? !!options.noTargetGet : false;
  1458. var state;
  1459. if (typeof value == 'function') {
  1460. if (typeof key == 'string' && !has(value, 'name')) {
  1461. createNonEnumerableProperty(value, 'name', key);
  1462. }
  1463. state = enforceInternalState(value);
  1464. if (!state.source) {
  1465. state.source = TEMPLATE.join(typeof key == 'string' ? key : '');
  1466. }
  1467. }
  1468. if (O === global) {
  1469. if (simple)
  1470. O[key] = value;
  1471. else
  1472. setGlobal(key, value);
  1473. return;
  1474. } else if (!unsafe) {
  1475. delete O[key];
  1476. } else if (!noTargetGet && O[key]) {
  1477. simple = true;
  1478. }
  1479. if (simple)
  1480. O[key] = value;
  1481. else
  1482. createNonEnumerableProperty(O, key, value);
  1483. })(Function.prototype, 'toString', function toString() {
  1484. return typeof this == 'function' && getInternalState(this).source || inspectSource(this);
  1485. });
  1486. /***/ }),
  1487. /* 41 */
  1488. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1489. var store = __w_pdfjs_require__(30);
  1490. var functionToString = Function.toString;
  1491. if (typeof store.inspectSource != 'function') {
  1492. store.inspectSource = function (it) {
  1493. return functionToString.call(it);
  1494. };
  1495. }
  1496. module.exports = store.inspectSource;
  1497. /***/ }),
  1498. /* 42 */
  1499. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1500. var NATIVE_WEAK_MAP = __w_pdfjs_require__(43);
  1501. var global = __w_pdfjs_require__(7);
  1502. var isObject = __w_pdfjs_require__(19);
  1503. var createNonEnumerableProperty = __w_pdfjs_require__(37);
  1504. var objectHas = __w_pdfjs_require__(32);
  1505. var shared = __w_pdfjs_require__(30);
  1506. var sharedKey = __w_pdfjs_require__(44);
  1507. var hiddenKeys = __w_pdfjs_require__(45);
  1508. var OBJECT_ALREADY_INITIALIZED = 'Object already initialized';
  1509. var WeakMap = global.WeakMap;
  1510. var set, get, has;
  1511. var enforce = function (it) {
  1512. return has(it) ? get(it) : set(it, {});
  1513. };
  1514. var getterFor = function (TYPE) {
  1515. return function (it) {
  1516. var state;
  1517. if (!isObject(it) || (state = get(it)).type !== TYPE) {
  1518. throw TypeError('Incompatible receiver, ' + TYPE + ' required');
  1519. }
  1520. return state;
  1521. };
  1522. };
  1523. if (NATIVE_WEAK_MAP || shared.state) {
  1524. var store = shared.state || (shared.state = new WeakMap());
  1525. var wmget = store.get;
  1526. var wmhas = store.has;
  1527. var wmset = store.set;
  1528. set = function (it, metadata) {
  1529. if (wmhas.call(store, it))
  1530. throw new TypeError(OBJECT_ALREADY_INITIALIZED);
  1531. metadata.facade = it;
  1532. wmset.call(store, it, metadata);
  1533. return metadata;
  1534. };
  1535. get = function (it) {
  1536. return wmget.call(store, it) || {};
  1537. };
  1538. has = function (it) {
  1539. return wmhas.call(store, it);
  1540. };
  1541. } else {
  1542. var STATE = sharedKey('state');
  1543. hiddenKeys[STATE] = true;
  1544. set = function (it, metadata) {
  1545. if (objectHas(it, STATE))
  1546. throw new TypeError(OBJECT_ALREADY_INITIALIZED);
  1547. metadata.facade = it;
  1548. createNonEnumerableProperty(it, STATE, metadata);
  1549. return metadata;
  1550. };
  1551. get = function (it) {
  1552. return objectHas(it, STATE) ? it[STATE] : {};
  1553. };
  1554. has = function (it) {
  1555. return objectHas(it, STATE);
  1556. };
  1557. }
  1558. module.exports = {
  1559. set: set,
  1560. get: get,
  1561. has: has,
  1562. enforce: enforce,
  1563. getterFor: getterFor
  1564. };
  1565. /***/ }),
  1566. /* 43 */
  1567. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1568. var global = __w_pdfjs_require__(7);
  1569. var inspectSource = __w_pdfjs_require__(41);
  1570. var WeakMap = global.WeakMap;
  1571. module.exports = typeof WeakMap === 'function' && /native code/.test(inspectSource(WeakMap));
  1572. /***/ }),
  1573. /* 44 */
  1574. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1575. var shared = __w_pdfjs_require__(28);
  1576. var uid = __w_pdfjs_require__(34);
  1577. var keys = shared('keys');
  1578. module.exports = function (key) {
  1579. return keys[key] || (keys[key] = uid(key));
  1580. };
  1581. /***/ }),
  1582. /* 45 */
  1583. /***/ ((module) => {
  1584. module.exports = {};
  1585. /***/ }),
  1586. /* 46 */
  1587. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1588. var has = __w_pdfjs_require__(32);
  1589. var ownKeys = __w_pdfjs_require__(47);
  1590. var getOwnPropertyDescriptorModule = __w_pdfjs_require__(8);
  1591. var definePropertyModule = __w_pdfjs_require__(38);
  1592. module.exports = function (target, source) {
  1593. var keys = ownKeys(source);
  1594. var defineProperty = definePropertyModule.f;
  1595. var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
  1596. for (var i = 0; i < keys.length; i++) {
  1597. var key = keys[i];
  1598. if (!has(target, key))
  1599. defineProperty(target, key, getOwnPropertyDescriptor(source, key));
  1600. }
  1601. };
  1602. /***/ }),
  1603. /* 47 */
  1604. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1605. var getBuiltIn = __w_pdfjs_require__(21);
  1606. var getOwnPropertyNamesModule = __w_pdfjs_require__(48);
  1607. var getOwnPropertySymbolsModule = __w_pdfjs_require__(55);
  1608. var anObject = __w_pdfjs_require__(39);
  1609. module.exports = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {
  1610. var keys = getOwnPropertyNamesModule.f(anObject(it));
  1611. var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
  1612. return getOwnPropertySymbols ? keys.concat(getOwnPropertySymbols(it)) : keys;
  1613. };
  1614. /***/ }),
  1615. /* 48 */
  1616. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  1617. var internalObjectKeys = __w_pdfjs_require__(49);
  1618. var enumBugKeys = __w_pdfjs_require__(54);
  1619. var hiddenKeys = enumBugKeys.concat('length', 'prototype');
  1620. exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  1621. return internalObjectKeys(O, hiddenKeys);
  1622. };
  1623. /***/ }),
  1624. /* 49 */
  1625. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1626. var has = __w_pdfjs_require__(32);
  1627. var toIndexedObject = __w_pdfjs_require__(13);
  1628. var indexOf = __w_pdfjs_require__(50).indexOf;
  1629. var hiddenKeys = __w_pdfjs_require__(45);
  1630. module.exports = function (object, names) {
  1631. var O = toIndexedObject(object);
  1632. var i = 0;
  1633. var result = [];
  1634. var key;
  1635. for (key in O)
  1636. !has(hiddenKeys, key) && has(O, key) && result.push(key);
  1637. while (names.length > i)
  1638. if (has(O, key = names[i++])) {
  1639. ~indexOf(result, key) || result.push(key);
  1640. }
  1641. return result;
  1642. };
  1643. /***/ }),
  1644. /* 50 */
  1645. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1646. var toIndexedObject = __w_pdfjs_require__(13);
  1647. var toLength = __w_pdfjs_require__(51);
  1648. var toAbsoluteIndex = __w_pdfjs_require__(53);
  1649. var createMethod = function (IS_INCLUDES) {
  1650. return function ($this, el, fromIndex) {
  1651. var O = toIndexedObject($this);
  1652. var length = toLength(O.length);
  1653. var index = toAbsoluteIndex(fromIndex, length);
  1654. var value;
  1655. if (IS_INCLUDES && el != el)
  1656. while (length > index) {
  1657. value = O[index++];
  1658. if (value != value)
  1659. return true;
  1660. }
  1661. else
  1662. for (; length > index; index++) {
  1663. if ((IS_INCLUDES || index in O) && O[index] === el)
  1664. return IS_INCLUDES || index || 0;
  1665. }
  1666. return !IS_INCLUDES && -1;
  1667. };
  1668. };
  1669. module.exports = {
  1670. includes: createMethod(true),
  1671. indexOf: createMethod(false)
  1672. };
  1673. /***/ }),
  1674. /* 51 */
  1675. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1676. var toInteger = __w_pdfjs_require__(52);
  1677. var min = Math.min;
  1678. module.exports = function (argument) {
  1679. return argument > 0 ? min(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0;
  1680. };
  1681. /***/ }),
  1682. /* 52 */
  1683. /***/ ((module) => {
  1684. var ceil = Math.ceil;
  1685. var floor = Math.floor;
  1686. module.exports = function (argument) {
  1687. return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor : ceil)(argument);
  1688. };
  1689. /***/ }),
  1690. /* 53 */
  1691. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1692. var toInteger = __w_pdfjs_require__(52);
  1693. var max = Math.max;
  1694. var min = Math.min;
  1695. module.exports = function (index, length) {
  1696. var integer = toInteger(index);
  1697. return integer < 0 ? max(integer + length, 0) : min(integer, length);
  1698. };
  1699. /***/ }),
  1700. /* 54 */
  1701. /***/ ((module) => {
  1702. module.exports = [
  1703. 'constructor',
  1704. 'hasOwnProperty',
  1705. 'isPrototypeOf',
  1706. 'propertyIsEnumerable',
  1707. 'toLocaleString',
  1708. 'toString',
  1709. 'valueOf'
  1710. ];
  1711. /***/ }),
  1712. /* 55 */
  1713. /***/ ((__unused_webpack_module, exports) => {
  1714. exports.f = Object.getOwnPropertySymbols;
  1715. /***/ }),
  1716. /* 56 */
  1717. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  1718. var fails = __w_pdfjs_require__(10);
  1719. var replacement = /#|\.prototype\./;
  1720. var isForced = function (feature, detection) {
  1721. var value = data[normalize(feature)];
  1722. return value == POLYFILL ? true : value == NATIVE ? false : typeof detection == 'function' ? fails(detection) : !!detection;
  1723. };
  1724. var normalize = isForced.normalize = function (string) {
  1725. return String(string).replace(replacement, '.').toLowerCase();
  1726. };
  1727. var data = isForced.data = {};
  1728. var NATIVE = isForced.NATIVE = 'N';
  1729. var POLYFILL = isForced.POLYFILL = 'P';
  1730. module.exports = isForced;
  1731. /***/ }),
  1732. /* 57 */
  1733. /***/ ((module, exports, __w_pdfjs_require__) => {
  1734. "use strict";
  1735. var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;
  1736. function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  1737. (function (global, factory) {
  1738. ( false ? 0 : _typeof(exports)) === 'object' && "object" !== 'undefined' ? module.exports = factory() : true ? !(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
  1739. __WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
  1740. (__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __w_pdfjs_require__, exports, module)) :
  1741. __WEBPACK_AMD_DEFINE_FACTORY__),
  1742. __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)) : (0);
  1743. })(void 0, function () {
  1744. 'use strict';
  1745. var CSSMatrix = function CSSMatrix() {
  1746. var args = [],
  1747. len = arguments.length;
  1748. while (len--) {
  1749. args[len] = arguments[len];
  1750. }
  1751. this.setIdentity();
  1752. return args && args.length && this.setMatrixValue(args);
  1753. };
  1754. var prototypeAccessors = {
  1755. isIdentity: {
  1756. configurable: true
  1757. },
  1758. is2D: {
  1759. configurable: true
  1760. }
  1761. };
  1762. prototypeAccessors.isIdentity.get = function () {
  1763. var m = this;
  1764. return m.m11 === 1 && m.m12 === 0 && m.m13 === 0 && m.m14 === 0 && m.m21 === 0 && m.m22 === 1 && m.m23 === 0 && m.m24 === 0 && m.m31 === 0 && m.m32 === 0 && m.m33 === 1 && m.m34 === 0 && m.m41 === 0 && m.m42 === 0 && m.m43 === 0 && m.m44 === 1;
  1765. };
  1766. prototypeAccessors.isIdentity.set = function (value) {
  1767. this.isIdentity = value;
  1768. };
  1769. prototypeAccessors.is2D.get = function () {
  1770. var m = this;
  1771. return m.m31 === 0 && m.m32 === 0 && m.m33 === 1 && m.m34 === 0 && m.m43 === 0 && m.m44 === 1;
  1772. };
  1773. prototypeAccessors.is2D.set = function (value) {
  1774. this.is2D = value;
  1775. };
  1776. Object.defineProperties(CSSMatrix.prototype, prototypeAccessors);
  1777. var CSSMatrixProto = CSSMatrix.prototype;
  1778. function Translate(x, y, z) {
  1779. var m = new CSSMatrix();
  1780. m.m41 = x;
  1781. m.e = x;
  1782. m.m42 = y;
  1783. m.f = y;
  1784. m.m43 = z;
  1785. return m;
  1786. }
  1787. function Rotate(rx, ry, rz) {
  1788. var m = new CSSMatrix();
  1789. var radX = rx * Math.PI / 180;
  1790. var radY = ry * Math.PI / 180;
  1791. var radZ = rz * Math.PI / 180;
  1792. var cosx = Math.cos(radX);
  1793. var sinx = -Math.sin(radX);
  1794. var cosy = Math.cos(radY);
  1795. var siny = -Math.sin(radY);
  1796. var cosz = Math.cos(radZ);
  1797. var sinz = -Math.sin(radZ);
  1798. var cycz = cosy * cosz;
  1799. var cysz = -cosy * sinz;
  1800. m.m11 = cycz;
  1801. m.a = cycz;
  1802. m.m12 = cysz;
  1803. m.b = cysz;
  1804. m.m13 = siny;
  1805. var sxsy = sinx * siny * cosz + cosx * sinz;
  1806. m.m21 = sxsy;
  1807. m.c = sxsy;
  1808. var cxcz = cosx * cosz - sinx * siny * sinz;
  1809. m.m22 = cxcz;
  1810. m.d = cxcz;
  1811. m.m23 = -sinx * cosy;
  1812. m.m31 = sinx * sinz - cosx * siny * cosz;
  1813. m.m32 = sinx * cosz + cosx * siny * sinz;
  1814. m.m33 = cosx * cosy;
  1815. return m;
  1816. }
  1817. function RotateAxisAngle(x, y, z, angle) {
  1818. var m = new CSSMatrix();
  1819. var radA = angle * Math.PI / 360;
  1820. var sinA = Math.sin(radA);
  1821. var cosA = Math.cos(radA);
  1822. var sinA2 = sinA * sinA;
  1823. var length = Math.sqrt(x * x + y * y + z * z);
  1824. var X = 0;
  1825. var Y = 0;
  1826. var Z = 1;
  1827. if (length !== 0) {
  1828. X = x / length;
  1829. Y = y / length;
  1830. Z = z / length;
  1831. }
  1832. var x2 = X * X;
  1833. var y2 = Y * Y;
  1834. var z2 = Z * Z;
  1835. var m11 = 1 - 2 * (y2 + z2) * sinA2;
  1836. m.m11 = m11;
  1837. m.a = m11;
  1838. var m12 = 2 * (x * y * sinA2 + z * sinA * cosA);
  1839. m.m12 = m12;
  1840. m.b = m12;
  1841. m.m13 = 2 * (x * z * sinA2 - y * sinA * cosA);
  1842. var m21 = 2 * (y * x * sinA2 - z * sinA * cosA);
  1843. m.m21 = m21;
  1844. m.c = m21;
  1845. var m22 = 1 - 2 * (z2 + x2) * sinA2;
  1846. m.m22 = m22;
  1847. m.d = m22;
  1848. m.m23 = 2 * (y * z * sinA2 + x * sinA * cosA);
  1849. m.m31 = 2 * (z * x * sinA2 + y * sinA * cosA);
  1850. m.m32 = 2 * (z * y * sinA2 - x * sinA * cosA);
  1851. m.m33 = 1 - 2 * (x2 + y2) * sinA2;
  1852. m.m14 = 0;
  1853. m.m24 = 0;
  1854. m.m34 = 0;
  1855. m.m41 = 0;
  1856. m.e = 0;
  1857. m.m42 = 0;
  1858. m.f = 0;
  1859. m.m43 = 0;
  1860. m.m44 = 1;
  1861. return m;
  1862. }
  1863. function Scale(x, y, z) {
  1864. var m = new CSSMatrix();
  1865. m.m11 = x;
  1866. m.a = x;
  1867. m.m22 = y;
  1868. m.d = y;
  1869. m.m33 = z;
  1870. return m;
  1871. }
  1872. function SkewX(angle) {
  1873. var radA = angle * Math.PI / 180;
  1874. var m = new CSSMatrix();
  1875. var t = Math.tan(radA);
  1876. m.m21 = t;
  1877. m.c = t;
  1878. return m;
  1879. }
  1880. function SkewY(angle) {
  1881. var radA = angle * Math.PI / 180;
  1882. var m = new CSSMatrix();
  1883. var t = Math.tan(radA);
  1884. m.m12 = t;
  1885. m.b = t;
  1886. return m;
  1887. }
  1888. function Multiply(m1, m2) {
  1889. var m11 = m2.m11 * m1.m11 + m2.m12 * m1.m21 + m2.m13 * m1.m31 + m2.m14 * m1.m41;
  1890. var m12 = m2.m11 * m1.m12 + m2.m12 * m1.m22 + m2.m13 * m1.m32 + m2.m14 * m1.m42;
  1891. var m13 = m2.m11 * m1.m13 + m2.m12 * m1.m23 + m2.m13 * m1.m33 + m2.m14 * m1.m43;
  1892. var m14 = m2.m11 * m1.m14 + m2.m12 * m1.m24 + m2.m13 * m1.m34 + m2.m14 * m1.m44;
  1893. var m21 = m2.m21 * m1.m11 + m2.m22 * m1.m21 + m2.m23 * m1.m31 + m2.m24 * m1.m41;
  1894. var m22 = m2.m21 * m1.m12 + m2.m22 * m1.m22 + m2.m23 * m1.m32 + m2.m24 * m1.m42;
  1895. var m23 = m2.m21 * m1.m13 + m2.m22 * m1.m23 + m2.m23 * m1.m33 + m2.m24 * m1.m43;
  1896. var m24 = m2.m21 * m1.m14 + m2.m22 * m1.m24 + m2.m23 * m1.m34 + m2.m24 * m1.m44;
  1897. var m31 = m2.m31 * m1.m11 + m2.m32 * m1.m21 + m2.m33 * m1.m31 + m2.m34 * m1.m41;
  1898. var m32 = m2.m31 * m1.m12 + m2.m32 * m1.m22 + m2.m33 * m1.m32 + m2.m34 * m1.m42;
  1899. var m33 = m2.m31 * m1.m13 + m2.m32 * m1.m23 + m2.m33 * m1.m33 + m2.m34 * m1.m43;
  1900. var m34 = m2.m31 * m1.m14 + m2.m32 * m1.m24 + m2.m33 * m1.m34 + m2.m34 * m1.m44;
  1901. var m41 = m2.m41 * m1.m11 + m2.m42 * m1.m21 + m2.m43 * m1.m31 + m2.m44 * m1.m41;
  1902. var m42 = m2.m41 * m1.m12 + m2.m42 * m1.m22 + m2.m43 * m1.m32 + m2.m44 * m1.m42;
  1903. var m43 = m2.m41 * m1.m13 + m2.m42 * m1.m23 + m2.m43 * m1.m33 + m2.m44 * m1.m43;
  1904. var m44 = m2.m41 * m1.m14 + m2.m42 * m1.m24 + m2.m43 * m1.m34 + m2.m44 * m1.m44;
  1905. return new CSSMatrix([m11, m21, m31, m41, m12, m22, m32, m42, m13, m23, m33, m43, m14, m24, m34, m44]);
  1906. }
  1907. function fromMatrix(m) {
  1908. return new CSSMatrix([m.m11, m.m21, m.m31, m.m41, m.m12, m.m22, m.m32, m.m42, m.m13, m.m23, m.m33, m.m43, m.m14, m.m24, m.m34, m.m44]);
  1909. }
  1910. function feedFromArray(m, array) {
  1911. var a = Array.from(array);
  1912. if (a.length === 16) {
  1913. var m11 = a[0];
  1914. var m21 = a[1];
  1915. var m31 = a[2];
  1916. var m41 = a[3];
  1917. var m12 = a[4];
  1918. var m22 = a[5];
  1919. var m32 = a[6];
  1920. var m42 = a[7];
  1921. var m13 = a[8];
  1922. var m23 = a[9];
  1923. var m33 = a[10];
  1924. var m43 = a[11];
  1925. var m14 = a[12];
  1926. var m24 = a[13];
  1927. var m34 = a[14];
  1928. var m44 = a[15];
  1929. m.m11 = m11;
  1930. m.a = m11;
  1931. m.m21 = m21;
  1932. m.c = m21;
  1933. m.m31 = m31;
  1934. m.m41 = m41;
  1935. m.e = m41;
  1936. m.m12 = m12;
  1937. m.b = m12;
  1938. m.m22 = m22;
  1939. m.d = m22;
  1940. m.m32 = m32;
  1941. m.m42 = m42;
  1942. m.f = m42;
  1943. m.m13 = m13;
  1944. m.m23 = m23;
  1945. m.m33 = m33;
  1946. m.m43 = m43;
  1947. m.m14 = m14;
  1948. m.m24 = m24;
  1949. m.m34 = m34;
  1950. m.m44 = m44;
  1951. } else if (a.length === 6) {
  1952. var m11$1 = a[0];
  1953. var m12$1 = a[1];
  1954. var m21$1 = a[2];
  1955. var m22$1 = a[3];
  1956. var m14$1 = a[4];
  1957. var m24$1 = a[5];
  1958. m.m11 = m11$1;
  1959. m.a = m11$1;
  1960. m.m12 = m12$1;
  1961. m.b = m12$1;
  1962. m.m21 = m21$1;
  1963. m.c = m21$1;
  1964. m.m22 = m22$1;
  1965. m.d = m22$1;
  1966. m.m14 = m14$1;
  1967. m.e = m14$1;
  1968. m.m24 = m24$1;
  1969. m.f = m24$1;
  1970. } else {
  1971. throw new TypeError('CSSMatrix: expecting a 6/16 values Array');
  1972. }
  1973. return m;
  1974. }
  1975. function fromArray(a) {
  1976. return feedFromArray(new CSSMatrix(), a);
  1977. }
  1978. CSSMatrixProto.setMatrixValue = function setMatrixValue(source) {
  1979. var m = this;
  1980. if (!source || !source.length) {
  1981. return m;
  1982. }
  1983. if (source.length && typeof source[0] === 'string' && source[0].length) {
  1984. var string = String(source[0]).trim();
  1985. var type = '';
  1986. var values = [];
  1987. if (string === 'none') {
  1988. return m;
  1989. }
  1990. type = string.slice(0, string.indexOf('('));
  1991. values = string.slice(type === 'matrix' ? 7 : 9, -1).split(',').map(function (n) {
  1992. return Math.abs(n) < 1e-6 ? 0 : +n;
  1993. });
  1994. if ([6, 16].indexOf(values.length) > -1) {
  1995. feedFromArray(m, values);
  1996. } else {
  1997. throw new TypeError('CSSMatrix: expecting valid CSS matrix() / matrix3d() syntax');
  1998. }
  1999. } else if (source[0] instanceof CSSMatrix) {
  2000. feedFromArray(m, source[0].toArray());
  2001. } else if (Array.isArray(source[0])) {
  2002. feedFromArray(m, source[0]);
  2003. } else if (Array.isArray(source)) {
  2004. feedFromArray(m, source);
  2005. }
  2006. return m;
  2007. };
  2008. CSSMatrixProto.toString = function toString() {
  2009. var m = this;
  2010. var type = m.is2D ? 'matrix' : 'matrix3d';
  2011. return type + "(" + m.toArray(1).join(',') + ")";
  2012. };
  2013. CSSMatrixProto.toArray = function toArray(transposed) {
  2014. var m = this;
  2015. var result;
  2016. if (m.is2D) {
  2017. result = [m.a, m.b, m.c, m.d, m.e, m.f];
  2018. } else if (transposed) {
  2019. result = [m.m11, m.m12, m.m13, m.m14, m.m21, m.m22, m.m23, m.m24, m.m31, m.m32, m.m33, m.m34, m.m41, m.m42, m.m43, m.m44];
  2020. } else {
  2021. result = [m.m11, m.m21, m.m31, m.m41, m.m12, m.m22, m.m32, m.m42, m.m13, m.m23, m.m33, m.m43, m.m14, m.m24, m.m34, m.m44];
  2022. }
  2023. return result;
  2024. };
  2025. CSSMatrixProto.multiply = function multiply(m2) {
  2026. return Multiply(this, m2);
  2027. };
  2028. CSSMatrixProto.translate = function translate(x, y, z) {
  2029. var X = x;
  2030. var Y = y;
  2031. var Z = z;
  2032. if (Z == null) {
  2033. Z = 0;
  2034. }
  2035. if (Y == null) {
  2036. Y = 0;
  2037. }
  2038. return Multiply(this, Translate(X, Y, Z));
  2039. };
  2040. CSSMatrixProto.scale = function scale(x, y, z) {
  2041. var X = x;
  2042. var Y = y;
  2043. var Z = z;
  2044. if (Y == null) {
  2045. Y = x;
  2046. }
  2047. if (Z == null) {
  2048. Z = x;
  2049. }
  2050. return Multiply(this, Scale(X, Y, Z));
  2051. };
  2052. CSSMatrixProto.rotate = function rotate(rx, ry, rz) {
  2053. var RX = rx;
  2054. var RY = ry;
  2055. var RZ = rz;
  2056. if (RY == null) {
  2057. RY = 0;
  2058. }
  2059. if (RZ == null) {
  2060. RZ = RX;
  2061. RX = 0;
  2062. }
  2063. return Multiply(this, Rotate(RX, RY, RZ));
  2064. };
  2065. CSSMatrixProto.rotateAxisAngle = function rotateAxisAngle(x, y, z, angle) {
  2066. if (arguments.length !== 4) {
  2067. throw new TypeError('CSSMatrix: expecting 4 values');
  2068. }
  2069. return Multiply(this, RotateAxisAngle(x, y, z, angle));
  2070. };
  2071. CSSMatrixProto.skewX = function skewX(angle) {
  2072. return Multiply(this, SkewX(angle));
  2073. };
  2074. CSSMatrixProto.skewY = function skewY(angle) {
  2075. return Multiply(this, SkewY(angle));
  2076. };
  2077. CSSMatrixProto.setIdentity = function setIdentity() {
  2078. var identity = [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1];
  2079. return feedFromArray(this, identity);
  2080. };
  2081. CSSMatrixProto.transformPoint = function transformPoint(v) {
  2082. var M = this;
  2083. var m = Translate(v.x, v.y, v.z);
  2084. m.m44 = v.w || 1;
  2085. m = M.multiply(m);
  2086. return {
  2087. x: m.m41,
  2088. y: m.m42,
  2089. z: m.m43,
  2090. w: m.m44
  2091. };
  2092. };
  2093. CSSMatrixProto.transform = function transform(t) {
  2094. var m = this;
  2095. var x = m.m11 * t.x + m.m12 * t.y + m.m13 * t.z + m.m14 * t.w;
  2096. var y = m.m21 * t.x + m.m22 * t.y + m.m23 * t.z + m.m24 * t.w;
  2097. var z = m.m31 * t.x + m.m32 * t.y + m.m33 * t.z + m.m34 * t.w;
  2098. var w = m.m41 * t.x + m.m42 * t.y + m.m43 * t.z + m.m44 * t.w;
  2099. return {
  2100. x: x / w,
  2101. y: y / w,
  2102. z: z / w,
  2103. w: w
  2104. };
  2105. };
  2106. CSSMatrix.Translate = Translate;
  2107. CSSMatrix.Rotate = Rotate;
  2108. CSSMatrix.RotateAxisAngle = RotateAxisAngle;
  2109. CSSMatrix.Scale = Scale;
  2110. CSSMatrix.SkewX = SkewX;
  2111. CSSMatrix.SkewY = SkewY;
  2112. CSSMatrix.Multiply = Multiply;
  2113. CSSMatrix.fromMatrix = fromMatrix;
  2114. CSSMatrix.fromArray = fromArray;
  2115. CSSMatrix.feedFromArray = feedFromArray;
  2116. return CSSMatrix;
  2117. });
  2118. /***/ }),
  2119. /* 58 */
  2120. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2121. __w_pdfjs_require__(59);
  2122. __w_pdfjs_require__(74);
  2123. var path = __w_pdfjs_require__(85);
  2124. module.exports = path.Object.fromEntries;
  2125. /***/ }),
  2126. /* 59 */
  2127. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2128. "use strict";
  2129. var toIndexedObject = __w_pdfjs_require__(13);
  2130. var addToUnscopables = __w_pdfjs_require__(60);
  2131. var Iterators = __w_pdfjs_require__(65);
  2132. var InternalStateModule = __w_pdfjs_require__(42);
  2133. var defineIterator = __w_pdfjs_require__(66);
  2134. var ARRAY_ITERATOR = 'Array Iterator';
  2135. var setInternalState = InternalStateModule.set;
  2136. var getInternalState = InternalStateModule.getterFor(ARRAY_ITERATOR);
  2137. module.exports = defineIterator(Array, 'Array', function (iterated, kind) {
  2138. setInternalState(this, {
  2139. type: ARRAY_ITERATOR,
  2140. target: toIndexedObject(iterated),
  2141. index: 0,
  2142. kind: kind
  2143. });
  2144. }, function () {
  2145. var state = getInternalState(this);
  2146. var target = state.target;
  2147. var kind = state.kind;
  2148. var index = state.index++;
  2149. if (!target || index >= target.length) {
  2150. state.target = undefined;
  2151. return {
  2152. value: undefined,
  2153. done: true
  2154. };
  2155. }
  2156. if (kind == 'keys')
  2157. return {
  2158. value: index,
  2159. done: false
  2160. };
  2161. if (kind == 'values')
  2162. return {
  2163. value: target[index],
  2164. done: false
  2165. };
  2166. return {
  2167. value: [
  2168. index,
  2169. target[index]
  2170. ],
  2171. done: false
  2172. };
  2173. }, 'values');
  2174. Iterators.Arguments = Iterators.Array;
  2175. addToUnscopables('keys');
  2176. addToUnscopables('values');
  2177. addToUnscopables('entries');
  2178. /***/ }),
  2179. /* 60 */
  2180. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2181. var wellKnownSymbol = __w_pdfjs_require__(27);
  2182. var create = __w_pdfjs_require__(61);
  2183. var definePropertyModule = __w_pdfjs_require__(38);
  2184. var UNSCOPABLES = wellKnownSymbol('unscopables');
  2185. var ArrayPrototype = Array.prototype;
  2186. if (ArrayPrototype[UNSCOPABLES] == undefined) {
  2187. definePropertyModule.f(ArrayPrototype, UNSCOPABLES, {
  2188. configurable: true,
  2189. value: create(null)
  2190. });
  2191. }
  2192. module.exports = function (key) {
  2193. ArrayPrototype[UNSCOPABLES][key] = true;
  2194. };
  2195. /***/ }),
  2196. /* 61 */
  2197. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2198. var anObject = __w_pdfjs_require__(39);
  2199. var defineProperties = __w_pdfjs_require__(62);
  2200. var enumBugKeys = __w_pdfjs_require__(54);
  2201. var hiddenKeys = __w_pdfjs_require__(45);
  2202. var html = __w_pdfjs_require__(64);
  2203. var documentCreateElement = __w_pdfjs_require__(36);
  2204. var sharedKey = __w_pdfjs_require__(44);
  2205. var GT = '>';
  2206. var LT = '<';
  2207. var PROTOTYPE = 'prototype';
  2208. var SCRIPT = 'script';
  2209. var IE_PROTO = sharedKey('IE_PROTO');
  2210. var EmptyConstructor = function () {
  2211. };
  2212. var scriptTag = function (content) {
  2213. return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;
  2214. };
  2215. var NullProtoObjectViaActiveX = function (activeXDocument) {
  2216. activeXDocument.write(scriptTag(''));
  2217. activeXDocument.close();
  2218. var temp = activeXDocument.parentWindow.Object;
  2219. activeXDocument = null;
  2220. return temp;
  2221. };
  2222. var NullProtoObjectViaIFrame = function () {
  2223. var iframe = documentCreateElement('iframe');
  2224. var JS = 'java' + SCRIPT + ':';
  2225. var iframeDocument;
  2226. iframe.style.display = 'none';
  2227. html.appendChild(iframe);
  2228. iframe.src = String(JS);
  2229. iframeDocument = iframe.contentWindow.document;
  2230. iframeDocument.open();
  2231. iframeDocument.write(scriptTag('document.F=Object'));
  2232. iframeDocument.close();
  2233. return iframeDocument.F;
  2234. };
  2235. var activeXDocument;
  2236. var NullProtoObject = function () {
  2237. try {
  2238. activeXDocument = new ActiveXObject('htmlfile');
  2239. } catch (error) {
  2240. }
  2241. NullProtoObject = typeof document != 'undefined' ? document.domain && activeXDocument ? NullProtoObjectViaActiveX(activeXDocument) : NullProtoObjectViaIFrame() : NullProtoObjectViaActiveX(activeXDocument);
  2242. var length = enumBugKeys.length;
  2243. while (length--)
  2244. delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];
  2245. return NullProtoObject();
  2246. };
  2247. hiddenKeys[IE_PROTO] = true;
  2248. module.exports = Object.create || function create(O, Properties) {
  2249. var result;
  2250. if (O !== null) {
  2251. EmptyConstructor[PROTOTYPE] = anObject(O);
  2252. result = new EmptyConstructor();
  2253. EmptyConstructor[PROTOTYPE] = null;
  2254. result[IE_PROTO] = O;
  2255. } else
  2256. result = NullProtoObject();
  2257. return Properties === undefined ? result : defineProperties(result, Properties);
  2258. };
  2259. /***/ }),
  2260. /* 62 */
  2261. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2262. var DESCRIPTORS = __w_pdfjs_require__(9);
  2263. var definePropertyModule = __w_pdfjs_require__(38);
  2264. var anObject = __w_pdfjs_require__(39);
  2265. var objectKeys = __w_pdfjs_require__(63);
  2266. module.exports = DESCRIPTORS ? Object.defineProperties : function defineProperties(O, Properties) {
  2267. anObject(O);
  2268. var keys = objectKeys(Properties);
  2269. var length = keys.length;
  2270. var index = 0;
  2271. var key;
  2272. while (length > index)
  2273. definePropertyModule.f(O, key = keys[index++], Properties[key]);
  2274. return O;
  2275. };
  2276. /***/ }),
  2277. /* 63 */
  2278. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2279. var internalObjectKeys = __w_pdfjs_require__(49);
  2280. var enumBugKeys = __w_pdfjs_require__(54);
  2281. module.exports = Object.keys || function keys(O) {
  2282. return internalObjectKeys(O, enumBugKeys);
  2283. };
  2284. /***/ }),
  2285. /* 64 */
  2286. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2287. var getBuiltIn = __w_pdfjs_require__(21);
  2288. module.exports = getBuiltIn('document', 'documentElement');
  2289. /***/ }),
  2290. /* 65 */
  2291. /***/ ((module) => {
  2292. module.exports = {};
  2293. /***/ }),
  2294. /* 66 */
  2295. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2296. "use strict";
  2297. var $ = __w_pdfjs_require__(6);
  2298. var createIteratorConstructor = __w_pdfjs_require__(67);
  2299. var getPrototypeOf = __w_pdfjs_require__(69);
  2300. var setPrototypeOf = __w_pdfjs_require__(72);
  2301. var setToStringTag = __w_pdfjs_require__(71);
  2302. var createNonEnumerableProperty = __w_pdfjs_require__(37);
  2303. var redefine = __w_pdfjs_require__(40);
  2304. var wellKnownSymbol = __w_pdfjs_require__(27);
  2305. var IS_PURE = __w_pdfjs_require__(29);
  2306. var Iterators = __w_pdfjs_require__(65);
  2307. var IteratorsCore = __w_pdfjs_require__(68);
  2308. var IteratorPrototype = IteratorsCore.IteratorPrototype;
  2309. var BUGGY_SAFARI_ITERATORS = IteratorsCore.BUGGY_SAFARI_ITERATORS;
  2310. var ITERATOR = wellKnownSymbol('iterator');
  2311. var KEYS = 'keys';
  2312. var VALUES = 'values';
  2313. var ENTRIES = 'entries';
  2314. var returnThis = function () {
  2315. return this;
  2316. };
  2317. module.exports = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {
  2318. createIteratorConstructor(IteratorConstructor, NAME, next);
  2319. var getIterationMethod = function (KIND) {
  2320. if (KIND === DEFAULT && defaultIterator)
  2321. return defaultIterator;
  2322. if (!BUGGY_SAFARI_ITERATORS && KIND in IterablePrototype)
  2323. return IterablePrototype[KIND];
  2324. switch (KIND) {
  2325. case KEYS:
  2326. return function keys() {
  2327. return new IteratorConstructor(this, KIND);
  2328. };
  2329. case VALUES:
  2330. return function values() {
  2331. return new IteratorConstructor(this, KIND);
  2332. };
  2333. case ENTRIES:
  2334. return function entries() {
  2335. return new IteratorConstructor(this, KIND);
  2336. };
  2337. }
  2338. return function () {
  2339. return new IteratorConstructor(this);
  2340. };
  2341. };
  2342. var TO_STRING_TAG = NAME + ' Iterator';
  2343. var INCORRECT_VALUES_NAME = false;
  2344. var IterablePrototype = Iterable.prototype;
  2345. var nativeIterator = IterablePrototype[ITERATOR] || IterablePrototype['@@iterator'] || DEFAULT && IterablePrototype[DEFAULT];
  2346. var defaultIterator = !BUGGY_SAFARI_ITERATORS && nativeIterator || getIterationMethod(DEFAULT);
  2347. var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;
  2348. var CurrentIteratorPrototype, methods, KEY;
  2349. if (anyNativeIterator) {
  2350. CurrentIteratorPrototype = getPrototypeOf(anyNativeIterator.call(new Iterable()));
  2351. if (CurrentIteratorPrototype !== Object.prototype && CurrentIteratorPrototype.next) {
  2352. if (!IS_PURE && getPrototypeOf(CurrentIteratorPrototype) !== IteratorPrototype) {
  2353. if (setPrototypeOf) {
  2354. setPrototypeOf(CurrentIteratorPrototype, IteratorPrototype);
  2355. } else if (typeof CurrentIteratorPrototype[ITERATOR] != 'function') {
  2356. createNonEnumerableProperty(CurrentIteratorPrototype, ITERATOR, returnThis);
  2357. }
  2358. }
  2359. setToStringTag(CurrentIteratorPrototype, TO_STRING_TAG, true, true);
  2360. if (IS_PURE)
  2361. Iterators[TO_STRING_TAG] = returnThis;
  2362. }
  2363. }
  2364. if (DEFAULT == VALUES && nativeIterator && nativeIterator.name !== VALUES) {
  2365. INCORRECT_VALUES_NAME = true;
  2366. defaultIterator = function values() {
  2367. return nativeIterator.call(this);
  2368. };
  2369. }
  2370. if ((!IS_PURE || FORCED) && IterablePrototype[ITERATOR] !== defaultIterator) {
  2371. createNonEnumerableProperty(IterablePrototype, ITERATOR, defaultIterator);
  2372. }
  2373. Iterators[NAME] = defaultIterator;
  2374. if (DEFAULT) {
  2375. methods = {
  2376. values: getIterationMethod(VALUES),
  2377. keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),
  2378. entries: getIterationMethod(ENTRIES)
  2379. };
  2380. if (FORCED)
  2381. for (KEY in methods) {
  2382. if (BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {
  2383. redefine(IterablePrototype, KEY, methods[KEY]);
  2384. }
  2385. }
  2386. else
  2387. $({
  2388. target: NAME,
  2389. proto: true,
  2390. forced: BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME
  2391. }, methods);
  2392. }
  2393. return methods;
  2394. };
  2395. /***/ }),
  2396. /* 67 */
  2397. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2398. "use strict";
  2399. var IteratorPrototype = __w_pdfjs_require__(68).IteratorPrototype;
  2400. var create = __w_pdfjs_require__(61);
  2401. var createPropertyDescriptor = __w_pdfjs_require__(12);
  2402. var setToStringTag = __w_pdfjs_require__(71);
  2403. var Iterators = __w_pdfjs_require__(65);
  2404. var returnThis = function () {
  2405. return this;
  2406. };
  2407. module.exports = function (IteratorConstructor, NAME, next) {
  2408. var TO_STRING_TAG = NAME + ' Iterator';
  2409. IteratorConstructor.prototype = create(IteratorPrototype, { next: createPropertyDescriptor(1, next) });
  2410. setToStringTag(IteratorConstructor, TO_STRING_TAG, false, true);
  2411. Iterators[TO_STRING_TAG] = returnThis;
  2412. return IteratorConstructor;
  2413. };
  2414. /***/ }),
  2415. /* 68 */
  2416. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2417. "use strict";
  2418. var fails = __w_pdfjs_require__(10);
  2419. var create = __w_pdfjs_require__(61);
  2420. var getPrototypeOf = __w_pdfjs_require__(69);
  2421. var createNonEnumerableProperty = __w_pdfjs_require__(37);
  2422. var wellKnownSymbol = __w_pdfjs_require__(27);
  2423. var IS_PURE = __w_pdfjs_require__(29);
  2424. var ITERATOR = wellKnownSymbol('iterator');
  2425. var BUGGY_SAFARI_ITERATORS = false;
  2426. var IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;
  2427. if ([].keys) {
  2428. arrayIterator = [].keys();
  2429. if (!('next' in arrayIterator))
  2430. BUGGY_SAFARI_ITERATORS = true;
  2431. else {
  2432. PrototypeOfArrayIteratorPrototype = getPrototypeOf(getPrototypeOf(arrayIterator));
  2433. if (PrototypeOfArrayIteratorPrototype !== Object.prototype)
  2434. IteratorPrototype = PrototypeOfArrayIteratorPrototype;
  2435. }
  2436. }
  2437. var NEW_ITERATOR_PROTOTYPE = IteratorPrototype == undefined || fails(function () {
  2438. var test = {};
  2439. return IteratorPrototype[ITERATOR].call(test) !== test;
  2440. });
  2441. if (NEW_ITERATOR_PROTOTYPE)
  2442. IteratorPrototype = {};
  2443. else if (IS_PURE)
  2444. IteratorPrototype = create(IteratorPrototype);
  2445. if (typeof IteratorPrototype[ITERATOR] !== 'function') {
  2446. createNonEnumerableProperty(IteratorPrototype, ITERATOR, function () {
  2447. return this;
  2448. });
  2449. }
  2450. module.exports = {
  2451. IteratorPrototype: IteratorPrototype,
  2452. BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS
  2453. };
  2454. /***/ }),
  2455. /* 69 */
  2456. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2457. var has = __w_pdfjs_require__(32);
  2458. var toObject = __w_pdfjs_require__(33);
  2459. var sharedKey = __w_pdfjs_require__(44);
  2460. var CORRECT_PROTOTYPE_GETTER = __w_pdfjs_require__(70);
  2461. var IE_PROTO = sharedKey('IE_PROTO');
  2462. var ObjectPrototype = Object.prototype;
  2463. module.exports = CORRECT_PROTOTYPE_GETTER ? Object.getPrototypeOf : function (O) {
  2464. O = toObject(O);
  2465. if (has(O, IE_PROTO))
  2466. return O[IE_PROTO];
  2467. if (typeof O.constructor == 'function' && O instanceof O.constructor) {
  2468. return O.constructor.prototype;
  2469. }
  2470. return O instanceof Object ? ObjectPrototype : null;
  2471. };
  2472. /***/ }),
  2473. /* 70 */
  2474. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2475. var fails = __w_pdfjs_require__(10);
  2476. module.exports = !fails(function () {
  2477. function F() {
  2478. }
  2479. F.prototype.constructor = null;
  2480. return Object.getPrototypeOf(new F()) !== F.prototype;
  2481. });
  2482. /***/ }),
  2483. /* 71 */
  2484. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2485. var defineProperty = __w_pdfjs_require__(38).f;
  2486. var has = __w_pdfjs_require__(32);
  2487. var wellKnownSymbol = __w_pdfjs_require__(27);
  2488. var TO_STRING_TAG = wellKnownSymbol('toStringTag');
  2489. module.exports = function (it, TAG, STATIC) {
  2490. if (it && !has(it = STATIC ? it : it.prototype, TO_STRING_TAG)) {
  2491. defineProperty(it, TO_STRING_TAG, {
  2492. configurable: true,
  2493. value: TAG
  2494. });
  2495. }
  2496. };
  2497. /***/ }),
  2498. /* 72 */
  2499. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2500. var anObject = __w_pdfjs_require__(39);
  2501. var aPossiblePrototype = __w_pdfjs_require__(73);
  2502. module.exports = Object.setPrototypeOf || ('__proto__' in {} ? function () {
  2503. var CORRECT_SETTER = false;
  2504. var test = {};
  2505. var setter;
  2506. try {
  2507. setter = Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set;
  2508. setter.call(test, []);
  2509. CORRECT_SETTER = test instanceof Array;
  2510. } catch (error) {
  2511. }
  2512. return function setPrototypeOf(O, proto) {
  2513. anObject(O);
  2514. aPossiblePrototype(proto);
  2515. if (CORRECT_SETTER)
  2516. setter.call(O, proto);
  2517. else
  2518. O.__proto__ = proto;
  2519. return O;
  2520. };
  2521. }() : undefined);
  2522. /***/ }),
  2523. /* 73 */
  2524. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2525. var isObject = __w_pdfjs_require__(19);
  2526. module.exports = function (it) {
  2527. if (!isObject(it) && it !== null) {
  2528. throw TypeError("Can't set " + String(it) + ' as a prototype');
  2529. }
  2530. return it;
  2531. };
  2532. /***/ }),
  2533. /* 74 */
  2534. /***/ ((__unused_webpack_module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2535. var $ = __w_pdfjs_require__(6);
  2536. var iterate = __w_pdfjs_require__(75);
  2537. var createProperty = __w_pdfjs_require__(84);
  2538. $({
  2539. target: 'Object',
  2540. stat: true
  2541. }, {
  2542. fromEntries: function fromEntries(iterable) {
  2543. var obj = {};
  2544. iterate(iterable, function (k, v) {
  2545. createProperty(obj, k, v);
  2546. }, { AS_ENTRIES: true });
  2547. return obj;
  2548. }
  2549. });
  2550. /***/ }),
  2551. /* 75 */
  2552. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2553. var anObject = __w_pdfjs_require__(39);
  2554. var isArrayIteratorMethod = __w_pdfjs_require__(76);
  2555. var toLength = __w_pdfjs_require__(51);
  2556. var bind = __w_pdfjs_require__(77);
  2557. var getIterator = __w_pdfjs_require__(79);
  2558. var getIteratorMethod = __w_pdfjs_require__(80);
  2559. var iteratorClose = __w_pdfjs_require__(83);
  2560. var Result = function (stopped, result) {
  2561. this.stopped = stopped;
  2562. this.result = result;
  2563. };
  2564. module.exports = function (iterable, unboundFunction, options) {
  2565. var that = options && options.that;
  2566. var AS_ENTRIES = !!(options && options.AS_ENTRIES);
  2567. var IS_ITERATOR = !!(options && options.IS_ITERATOR);
  2568. var INTERRUPTED = !!(options && options.INTERRUPTED);
  2569. var fn = bind(unboundFunction, that, 1 + AS_ENTRIES + INTERRUPTED);
  2570. var iterator, iterFn, index, length, result, next, step;
  2571. var stop = function (condition) {
  2572. if (iterator)
  2573. iteratorClose(iterator, 'normal', condition);
  2574. return new Result(true, condition);
  2575. };
  2576. var callFn = function (value) {
  2577. if (AS_ENTRIES) {
  2578. anObject(value);
  2579. return INTERRUPTED ? fn(value[0], value[1], stop) : fn(value[0], value[1]);
  2580. }
  2581. return INTERRUPTED ? fn(value, stop) : fn(value);
  2582. };
  2583. if (IS_ITERATOR) {
  2584. iterator = iterable;
  2585. } else {
  2586. iterFn = getIteratorMethod(iterable);
  2587. if (typeof iterFn != 'function')
  2588. throw TypeError('Target is not iterable');
  2589. if (isArrayIteratorMethod(iterFn)) {
  2590. for (index = 0, length = toLength(iterable.length); length > index; index++) {
  2591. result = callFn(iterable[index]);
  2592. if (result && result instanceof Result)
  2593. return result;
  2594. }
  2595. return new Result(false);
  2596. }
  2597. iterator = getIterator(iterable, iterFn);
  2598. }
  2599. next = iterator.next;
  2600. while (!(step = next.call(iterator)).done) {
  2601. try {
  2602. result = callFn(step.value);
  2603. } catch (error) {
  2604. iteratorClose(iterator, 'throw', error);
  2605. }
  2606. if (typeof result == 'object' && result && result instanceof Result)
  2607. return result;
  2608. }
  2609. return new Result(false);
  2610. };
  2611. /***/ }),
  2612. /* 76 */
  2613. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2614. var wellKnownSymbol = __w_pdfjs_require__(27);
  2615. var Iterators = __w_pdfjs_require__(65);
  2616. var ITERATOR = wellKnownSymbol('iterator');
  2617. var ArrayPrototype = Array.prototype;
  2618. module.exports = function (it) {
  2619. return it !== undefined && (Iterators.Array === it || ArrayPrototype[ITERATOR] === it);
  2620. };
  2621. /***/ }),
  2622. /* 77 */
  2623. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2624. var aFunction = __w_pdfjs_require__(78);
  2625. module.exports = function (fn, that, length) {
  2626. aFunction(fn);
  2627. if (that === undefined)
  2628. return fn;
  2629. switch (length) {
  2630. case 0:
  2631. return function () {
  2632. return fn.call(that);
  2633. };
  2634. case 1:
  2635. return function (a) {
  2636. return fn.call(that, a);
  2637. };
  2638. case 2:
  2639. return function (a, b) {
  2640. return fn.call(that, a, b);
  2641. };
  2642. case 3:
  2643. return function (a, b, c) {
  2644. return fn.call(that, a, b, c);
  2645. };
  2646. }
  2647. return function () {
  2648. return fn.apply(that, arguments);
  2649. };
  2650. };
  2651. /***/ }),
  2652. /* 78 */
  2653. /***/ ((module) => {
  2654. module.exports = function (it) {
  2655. if (typeof it != 'function') {
  2656. throw TypeError(String(it) + ' is not a function');
  2657. }
  2658. return it;
  2659. };
  2660. /***/ }),
  2661. /* 79 */
  2662. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2663. var anObject = __w_pdfjs_require__(39);
  2664. var getIteratorMethod = __w_pdfjs_require__(80);
  2665. module.exports = function (it, usingIterator) {
  2666. var iteratorMethod = arguments.length < 2 ? getIteratorMethod(it) : usingIterator;
  2667. if (typeof iteratorMethod != 'function') {
  2668. throw TypeError(String(it) + ' is not iterable');
  2669. }
  2670. return anObject(iteratorMethod.call(it));
  2671. };
  2672. /***/ }),
  2673. /* 80 */
  2674. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2675. var classof = __w_pdfjs_require__(81);
  2676. var Iterators = __w_pdfjs_require__(65);
  2677. var wellKnownSymbol = __w_pdfjs_require__(27);
  2678. var ITERATOR = wellKnownSymbol('iterator');
  2679. module.exports = function (it) {
  2680. if (it != undefined)
  2681. return it[ITERATOR] || it['@@iterator'] || Iterators[classof(it)];
  2682. };
  2683. /***/ }),
  2684. /* 81 */
  2685. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2686. var TO_STRING_TAG_SUPPORT = __w_pdfjs_require__(82);
  2687. var classofRaw = __w_pdfjs_require__(15);
  2688. var wellKnownSymbol = __w_pdfjs_require__(27);
  2689. var TO_STRING_TAG = wellKnownSymbol('toStringTag');
  2690. var CORRECT_ARGUMENTS = classofRaw(function () {
  2691. return arguments;
  2692. }()) == 'Arguments';
  2693. var tryGet = function (it, key) {
  2694. try {
  2695. return it[key];
  2696. } catch (error) {
  2697. }
  2698. };
  2699. module.exports = TO_STRING_TAG_SUPPORT ? classofRaw : function (it) {
  2700. var O, tag, result;
  2701. return it === undefined ? 'Undefined' : it === null ? 'Null' : typeof (tag = tryGet(O = Object(it), TO_STRING_TAG)) == 'string' ? tag : CORRECT_ARGUMENTS ? classofRaw(O) : (result = classofRaw(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : result;
  2702. };
  2703. /***/ }),
  2704. /* 82 */
  2705. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2706. var wellKnownSymbol = __w_pdfjs_require__(27);
  2707. var TO_STRING_TAG = wellKnownSymbol('toStringTag');
  2708. var test = {};
  2709. test[TO_STRING_TAG] = 'z';
  2710. module.exports = String(test) === '[object z]';
  2711. /***/ }),
  2712. /* 83 */
  2713. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2714. var anObject = __w_pdfjs_require__(39);
  2715. module.exports = function (iterator, kind, value) {
  2716. var innerResult, innerError;
  2717. anObject(iterator);
  2718. try {
  2719. innerResult = iterator['return'];
  2720. if (innerResult === undefined) {
  2721. if (kind === 'throw')
  2722. throw value;
  2723. return value;
  2724. }
  2725. innerResult = innerResult.call(iterator);
  2726. } catch (error) {
  2727. innerError = true;
  2728. innerResult = error;
  2729. }
  2730. if (kind === 'throw')
  2731. throw value;
  2732. if (innerError)
  2733. throw innerResult;
  2734. anObject(innerResult);
  2735. return value;
  2736. };
  2737. /***/ }),
  2738. /* 84 */
  2739. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2740. "use strict";
  2741. var toPropertyKey = __w_pdfjs_require__(17);
  2742. var definePropertyModule = __w_pdfjs_require__(38);
  2743. var createPropertyDescriptor = __w_pdfjs_require__(12);
  2744. module.exports = function (object, key, value) {
  2745. var propertyKey = toPropertyKey(key);
  2746. if (propertyKey in object)
  2747. definePropertyModule.f(object, propertyKey, createPropertyDescriptor(0, value));
  2748. else
  2749. object[propertyKey] = value;
  2750. };
  2751. /***/ }),
  2752. /* 85 */
  2753. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  2754. var global = __w_pdfjs_require__(7);
  2755. module.exports = global;
  2756. /***/ }),
  2757. /* 86 */
  2758. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  2759. "use strict";
  2760. function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  2761. Object.defineProperty(exports, "__esModule", ({
  2762. value: true
  2763. }));
  2764. exports.Jbig2Image = void 0;
  2765. var _util = __w_pdfjs_require__(1);
  2766. var _core_utils = __w_pdfjs_require__(87);
  2767. var _arithmetic_decoder = __w_pdfjs_require__(92);
  2768. var _ccitt = __w_pdfjs_require__(93);
  2769. function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  2770. function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  2771. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  2772. function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  2773. function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  2774. function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  2775. function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
  2776. function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  2777. function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
  2778. function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  2779. var Jbig2Error = /*#__PURE__*/function (_BaseException) {
  2780. _inherits(Jbig2Error, _BaseException);
  2781. var _super = _createSuper(Jbig2Error);
  2782. function Jbig2Error(msg) {
  2783. _classCallCheck(this, Jbig2Error);
  2784. return _super.call(this, "JBIG2 error: ".concat(msg), "Jbig2Error");
  2785. }
  2786. return Jbig2Error;
  2787. }(_util.BaseException);
  2788. var ContextCache = /*#__PURE__*/function () {
  2789. function ContextCache() {
  2790. _classCallCheck(this, ContextCache);
  2791. }
  2792. _createClass(ContextCache, [{
  2793. key: "getContexts",
  2794. value: function getContexts(id) {
  2795. if (id in this) {
  2796. return this[id];
  2797. }
  2798. return this[id] = new Int8Array(1 << 16);
  2799. }
  2800. }]);
  2801. return ContextCache;
  2802. }();
  2803. var DecodingContext = /*#__PURE__*/function () {
  2804. function DecodingContext(data, start, end) {
  2805. _classCallCheck(this, DecodingContext);
  2806. this.data = data;
  2807. this.start = start;
  2808. this.end = end;
  2809. }
  2810. _createClass(DecodingContext, [{
  2811. key: "decoder",
  2812. get: function get() {
  2813. var decoder = new _arithmetic_decoder.ArithmeticDecoder(this.data, this.start, this.end);
  2814. return (0, _util.shadow)(this, "decoder", decoder);
  2815. }
  2816. }, {
  2817. key: "contextCache",
  2818. get: function get() {
  2819. var cache = new ContextCache();
  2820. return (0, _util.shadow)(this, "contextCache", cache);
  2821. }
  2822. }]);
  2823. return DecodingContext;
  2824. }();
  2825. function decodeInteger(contextCache, procedure, decoder) {
  2826. var contexts = contextCache.getContexts(procedure);
  2827. var prev = 1;
  2828. function readBits(length) {
  2829. var v = 0;
  2830. for (var i = 0; i < length; i++) {
  2831. var bit = decoder.readBit(contexts, prev);
  2832. prev = prev < 256 ? prev << 1 | bit : (prev << 1 | bit) & 511 | 256;
  2833. v = v << 1 | bit;
  2834. }
  2835. return v >>> 0;
  2836. }
  2837. var sign = readBits(1);
  2838. 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);
  2839. if (sign === 0) {
  2840. return value;
  2841. } else if (value > 0) {
  2842. return -value;
  2843. }
  2844. return null;
  2845. }
  2846. function decodeIAID(contextCache, decoder, codeLength) {
  2847. var contexts = contextCache.getContexts("IAID");
  2848. var prev = 1;
  2849. for (var i = 0; i < codeLength; i++) {
  2850. var bit = decoder.readBit(contexts, prev);
  2851. prev = prev << 1 | bit;
  2852. }
  2853. if (codeLength < 31) {
  2854. return prev & (1 << codeLength) - 1;
  2855. }
  2856. return prev & 0x7fffffff;
  2857. }
  2858. 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"];
  2859. var CodingTemplates = [[{
  2860. x: -1,
  2861. y: -2
  2862. }, {
  2863. x: 0,
  2864. y: -2
  2865. }, {
  2866. x: 1,
  2867. y: -2
  2868. }, {
  2869. x: -2,
  2870. y: -1
  2871. }, {
  2872. x: -1,
  2873. y: -1
  2874. }, {
  2875. x: 0,
  2876. y: -1
  2877. }, {
  2878. x: 1,
  2879. y: -1
  2880. }, {
  2881. x: 2,
  2882. y: -1
  2883. }, {
  2884. x: -4,
  2885. y: 0
  2886. }, {
  2887. x: -3,
  2888. y: 0
  2889. }, {
  2890. x: -2,
  2891. y: 0
  2892. }, {
  2893. x: -1,
  2894. y: 0
  2895. }], [{
  2896. x: -1,
  2897. y: -2
  2898. }, {
  2899. x: 0,
  2900. y: -2
  2901. }, {
  2902. x: 1,
  2903. y: -2
  2904. }, {
  2905. x: 2,
  2906. y: -2
  2907. }, {
  2908. x: -2,
  2909. y: -1
  2910. }, {
  2911. x: -1,
  2912. y: -1
  2913. }, {
  2914. x: 0,
  2915. y: -1
  2916. }, {
  2917. x: 1,
  2918. y: -1
  2919. }, {
  2920. x: 2,
  2921. y: -1
  2922. }, {
  2923. x: -3,
  2924. y: 0
  2925. }, {
  2926. x: -2,
  2927. y: 0
  2928. }, {
  2929. x: -1,
  2930. y: 0
  2931. }], [{
  2932. x: -1,
  2933. y: -2
  2934. }, {
  2935. x: 0,
  2936. y: -2
  2937. }, {
  2938. x: 1,
  2939. y: -2
  2940. }, {
  2941. x: -2,
  2942. y: -1
  2943. }, {
  2944. x: -1,
  2945. y: -1
  2946. }, {
  2947. x: 0,
  2948. y: -1
  2949. }, {
  2950. x: 1,
  2951. y: -1
  2952. }, {
  2953. x: -2,
  2954. y: 0
  2955. }, {
  2956. x: -1,
  2957. y: 0
  2958. }], [{
  2959. x: -3,
  2960. y: -1
  2961. }, {
  2962. x: -2,
  2963. y: -1
  2964. }, {
  2965. x: -1,
  2966. y: -1
  2967. }, {
  2968. x: 0,
  2969. y: -1
  2970. }, {
  2971. x: 1,
  2972. y: -1
  2973. }, {
  2974. x: -4,
  2975. y: 0
  2976. }, {
  2977. x: -3,
  2978. y: 0
  2979. }, {
  2980. x: -2,
  2981. y: 0
  2982. }, {
  2983. x: -1,
  2984. y: 0
  2985. }]];
  2986. var RefinementTemplates = [{
  2987. coding: [{
  2988. x: 0,
  2989. y: -1
  2990. }, {
  2991. x: 1,
  2992. y: -1
  2993. }, {
  2994. x: -1,
  2995. y: 0
  2996. }],
  2997. reference: [{
  2998. x: 0,
  2999. y: -1
  3000. }, {
  3001. x: 1,
  3002. y: -1
  3003. }, {
  3004. x: -1,
  3005. y: 0
  3006. }, {
  3007. x: 0,
  3008. y: 0
  3009. }, {
  3010. x: 1,
  3011. y: 0
  3012. }, {
  3013. x: -1,
  3014. y: 1
  3015. }, {
  3016. x: 0,
  3017. y: 1
  3018. }, {
  3019. x: 1,
  3020. y: 1
  3021. }]
  3022. }, {
  3023. coding: [{
  3024. x: -1,
  3025. y: -1
  3026. }, {
  3027. x: 0,
  3028. y: -1
  3029. }, {
  3030. x: 1,
  3031. y: -1
  3032. }, {
  3033. x: -1,
  3034. y: 0
  3035. }],
  3036. reference: [{
  3037. x: 0,
  3038. y: -1
  3039. }, {
  3040. x: -1,
  3041. y: 0
  3042. }, {
  3043. x: 0,
  3044. y: 0
  3045. }, {
  3046. x: 1,
  3047. y: 0
  3048. }, {
  3049. x: 0,
  3050. y: 1
  3051. }, {
  3052. x: 1,
  3053. y: 1
  3054. }]
  3055. }];
  3056. var ReusedContexts = [0x9b25, 0x0795, 0x00e5, 0x0195];
  3057. var RefinementReusedContexts = [0x0020, 0x0008];
  3058. function decodeBitmapTemplate0(width, height, decodingContext) {
  3059. var decoder = decodingContext.decoder;
  3060. var contexts = decodingContext.contextCache.getContexts("GB");
  3061. var bitmap = [];
  3062. var contextLabel, i, j, pixel, row, row1, row2;
  3063. var OLD_PIXEL_MASK = 0x7bf7;
  3064. for (i = 0; i < height; i++) {
  3065. row = bitmap[i] = new Uint8Array(width);
  3066. row1 = i < 1 ? row : bitmap[i - 1];
  3067. row2 = i < 2 ? row : bitmap[i - 2];
  3068. contextLabel = row2[0] << 13 | row2[1] << 12 | row2[2] << 11 | row1[0] << 7 | row1[1] << 6 | row1[2] << 5 | row1[3] << 4;
  3069. for (j = 0; j < width; j++) {
  3070. row[j] = pixel = decoder.readBit(contexts, contextLabel);
  3071. contextLabel = (contextLabel & OLD_PIXEL_MASK) << 1 | (j + 3 < width ? row2[j + 3] << 11 : 0) | (j + 4 < width ? row1[j + 4] << 4 : 0) | pixel;
  3072. }
  3073. }
  3074. return bitmap;
  3075. }
  3076. function decodeBitmap(mmr, width, height, templateIndex, prediction, skip, at, decodingContext) {
  3077. if (mmr) {
  3078. var input = new Reader(decodingContext.data, decodingContext.start, decodingContext.end);
  3079. return decodeMMRBitmap(input, width, height, false);
  3080. }
  3081. 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) {
  3082. return decodeBitmapTemplate0(width, height, decodingContext);
  3083. }
  3084. var useskip = !!skip;
  3085. var template = CodingTemplates[templateIndex].concat(at);
  3086. template.sort(function (a, b) {
  3087. return a.y - b.y || a.x - b.x;
  3088. });
  3089. var templateLength = template.length;
  3090. var templateX = new Int8Array(templateLength);
  3091. var templateY = new Int8Array(templateLength);
  3092. var changingTemplateEntries = [];
  3093. var reuseMask = 0,
  3094. minX = 0,
  3095. maxX = 0,
  3096. minY = 0;
  3097. var c, k;
  3098. for (k = 0; k < templateLength; k++) {
  3099. templateX[k] = template[k].x;
  3100. templateY[k] = template[k].y;
  3101. minX = Math.min(minX, template[k].x);
  3102. maxX = Math.max(maxX, template[k].x);
  3103. minY = Math.min(minY, template[k].y);
  3104. if (k < templateLength - 1 && template[k].y === template[k + 1].y && template[k].x === template[k + 1].x - 1) {
  3105. reuseMask |= 1 << templateLength - 1 - k;
  3106. } else {
  3107. changingTemplateEntries.push(k);
  3108. }
  3109. }
  3110. var changingEntriesLength = changingTemplateEntries.length;
  3111. var changingTemplateX = new Int8Array(changingEntriesLength);
  3112. var changingTemplateY = new Int8Array(changingEntriesLength);
  3113. var changingTemplateBit = new Uint16Array(changingEntriesLength);
  3114. for (c = 0; c < changingEntriesLength; c++) {
  3115. k = changingTemplateEntries[c];
  3116. changingTemplateX[c] = template[k].x;
  3117. changingTemplateY[c] = template[k].y;
  3118. changingTemplateBit[c] = 1 << templateLength - 1 - k;
  3119. }
  3120. var sbb_left = -minX;
  3121. var sbb_top = -minY;
  3122. var sbb_right = width - maxX;
  3123. var pseudoPixelContext = ReusedContexts[templateIndex];
  3124. var row = new Uint8Array(width);
  3125. var bitmap = [];
  3126. var decoder = decodingContext.decoder;
  3127. var contexts = decodingContext.contextCache.getContexts("GB");
  3128. var ltp = 0,
  3129. j,
  3130. i0,
  3131. j0,
  3132. contextLabel = 0,
  3133. bit,
  3134. shift;
  3135. for (var i = 0; i < height; i++) {
  3136. if (prediction) {
  3137. var sltp = decoder.readBit(contexts, pseudoPixelContext);
  3138. ltp ^= sltp;
  3139. if (ltp) {
  3140. bitmap.push(row);
  3141. continue;
  3142. }
  3143. }
  3144. row = new Uint8Array(row);
  3145. bitmap.push(row);
  3146. for (j = 0; j < width; j++) {
  3147. if (useskip && skip[i][j]) {
  3148. row[j] = 0;
  3149. continue;
  3150. }
  3151. if (j >= sbb_left && j < sbb_right && i >= sbb_top) {
  3152. contextLabel = contextLabel << 1 & reuseMask;
  3153. for (k = 0; k < changingEntriesLength; k++) {
  3154. i0 = i + changingTemplateY[k];
  3155. j0 = j + changingTemplateX[k];
  3156. bit = bitmap[i0][j0];
  3157. if (bit) {
  3158. bit = changingTemplateBit[k];
  3159. contextLabel |= bit;
  3160. }
  3161. }
  3162. } else {
  3163. contextLabel = 0;
  3164. shift = templateLength - 1;
  3165. for (k = 0; k < templateLength; k++, shift--) {
  3166. j0 = j + templateX[k];
  3167. if (j0 >= 0 && j0 < width) {
  3168. i0 = i + templateY[k];
  3169. if (i0 >= 0) {
  3170. bit = bitmap[i0][j0];
  3171. if (bit) {
  3172. contextLabel |= bit << shift;
  3173. }
  3174. }
  3175. }
  3176. }
  3177. }
  3178. var pixel = decoder.readBit(contexts, contextLabel);
  3179. row[j] = pixel;
  3180. }
  3181. }
  3182. return bitmap;
  3183. }
  3184. function decodeRefinement(width, height, templateIndex, referenceBitmap, offsetX, offsetY, prediction, at, decodingContext) {
  3185. var codingTemplate = RefinementTemplates[templateIndex].coding;
  3186. if (templateIndex === 0) {
  3187. codingTemplate = codingTemplate.concat([at[0]]);
  3188. }
  3189. var codingTemplateLength = codingTemplate.length;
  3190. var codingTemplateX = new Int32Array(codingTemplateLength);
  3191. var codingTemplateY = new Int32Array(codingTemplateLength);
  3192. var k;
  3193. for (k = 0; k < codingTemplateLength; k++) {
  3194. codingTemplateX[k] = codingTemplate[k].x;
  3195. codingTemplateY[k] = codingTemplate[k].y;
  3196. }
  3197. var referenceTemplate = RefinementTemplates[templateIndex].reference;
  3198. if (templateIndex === 0) {
  3199. referenceTemplate = referenceTemplate.concat([at[1]]);
  3200. }
  3201. var referenceTemplateLength = referenceTemplate.length;
  3202. var referenceTemplateX = new Int32Array(referenceTemplateLength);
  3203. var referenceTemplateY = new Int32Array(referenceTemplateLength);
  3204. for (k = 0; k < referenceTemplateLength; k++) {
  3205. referenceTemplateX[k] = referenceTemplate[k].x;
  3206. referenceTemplateY[k] = referenceTemplate[k].y;
  3207. }
  3208. var referenceWidth = referenceBitmap[0].length;
  3209. var referenceHeight = referenceBitmap.length;
  3210. var pseudoPixelContext = RefinementReusedContexts[templateIndex];
  3211. var bitmap = [];
  3212. var decoder = decodingContext.decoder;
  3213. var contexts = decodingContext.contextCache.getContexts("GR");
  3214. var ltp = 0;
  3215. for (var i = 0; i < height; i++) {
  3216. if (prediction) {
  3217. var sltp = decoder.readBit(contexts, pseudoPixelContext);
  3218. ltp ^= sltp;
  3219. if (ltp) {
  3220. throw new Jbig2Error("prediction is not supported");
  3221. }
  3222. }
  3223. var row = new Uint8Array(width);
  3224. bitmap.push(row);
  3225. for (var j = 0; j < width; j++) {
  3226. var i0 = void 0,
  3227. j0 = void 0;
  3228. var contextLabel = 0;
  3229. for (k = 0; k < codingTemplateLength; k++) {
  3230. i0 = i + codingTemplateY[k];
  3231. j0 = j + codingTemplateX[k];
  3232. if (i0 < 0 || j0 < 0 || j0 >= width) {
  3233. contextLabel <<= 1;
  3234. } else {
  3235. contextLabel = contextLabel << 1 | bitmap[i0][j0];
  3236. }
  3237. }
  3238. for (k = 0; k < referenceTemplateLength; k++) {
  3239. i0 = i + referenceTemplateY[k] - offsetY;
  3240. j0 = j + referenceTemplateX[k] - offsetX;
  3241. if (i0 < 0 || i0 >= referenceHeight || j0 < 0 || j0 >= referenceWidth) {
  3242. contextLabel <<= 1;
  3243. } else {
  3244. contextLabel = contextLabel << 1 | referenceBitmap[i0][j0];
  3245. }
  3246. }
  3247. var pixel = decoder.readBit(contexts, contextLabel);
  3248. row[j] = pixel;
  3249. }
  3250. }
  3251. return bitmap;
  3252. }
  3253. function decodeSymbolDictionary(huffman, refinement, symbols, numberOfNewSymbols, numberOfExportedSymbols, huffmanTables, templateIndex, at, refinementTemplateIndex, refinementAt, decodingContext, huffmanInput) {
  3254. if (huffman && refinement) {
  3255. throw new Jbig2Error("symbol refinement with Huffman is not supported");
  3256. }
  3257. var newSymbols = [];
  3258. var currentHeight = 0;
  3259. var symbolCodeLength = (0, _core_utils.log2)(symbols.length + numberOfNewSymbols);
  3260. var decoder = decodingContext.decoder;
  3261. var contextCache = decodingContext.contextCache;
  3262. var tableB1, symbolWidths;
  3263. if (huffman) {
  3264. tableB1 = getStandardTable(1);
  3265. symbolWidths = [];
  3266. symbolCodeLength = Math.max(symbolCodeLength, 1);
  3267. }
  3268. while (newSymbols.length < numberOfNewSymbols) {
  3269. var deltaHeight = huffman ? huffmanTables.tableDeltaHeight.decode(huffmanInput) : decodeInteger(contextCache, "IADH", decoder);
  3270. currentHeight += deltaHeight;
  3271. var currentWidth = 0,
  3272. totalWidth = 0;
  3273. var firstSymbol = huffman ? symbolWidths.length : 0;
  3274. while (true) {
  3275. var deltaWidth = huffman ? huffmanTables.tableDeltaWidth.decode(huffmanInput) : decodeInteger(contextCache, "IADW", decoder);
  3276. if (deltaWidth === null) {
  3277. break;
  3278. }
  3279. currentWidth += deltaWidth;
  3280. totalWidth += currentWidth;
  3281. var bitmap = void 0;
  3282. if (refinement) {
  3283. var numberOfInstances = decodeInteger(contextCache, "IAAI", decoder);
  3284. if (numberOfInstances > 1) {
  3285. bitmap = decodeTextRegion(huffman, refinement, currentWidth, currentHeight, 0, numberOfInstances, 1, symbols.concat(newSymbols), symbolCodeLength, 0, 0, 1, 0, huffmanTables, refinementTemplateIndex, refinementAt, decodingContext, 0, huffmanInput);
  3286. } else {
  3287. var symbolId = decodeIAID(contextCache, decoder, symbolCodeLength);
  3288. var rdx = decodeInteger(contextCache, "IARDX", decoder);
  3289. var rdy = decodeInteger(contextCache, "IARDY", decoder);
  3290. var symbol = symbolId < symbols.length ? symbols[symbolId] : newSymbols[symbolId - symbols.length];
  3291. bitmap = decodeRefinement(currentWidth, currentHeight, refinementTemplateIndex, symbol, rdx, rdy, false, refinementAt, decodingContext);
  3292. }
  3293. newSymbols.push(bitmap);
  3294. } else if (huffman) {
  3295. symbolWidths.push(currentWidth);
  3296. } else {
  3297. bitmap = decodeBitmap(false, currentWidth, currentHeight, templateIndex, false, null, at, decodingContext);
  3298. newSymbols.push(bitmap);
  3299. }
  3300. }
  3301. if (huffman && !refinement) {
  3302. var bitmapSize = huffmanTables.tableBitmapSize.decode(huffmanInput);
  3303. huffmanInput.byteAlign();
  3304. var collectiveBitmap = void 0;
  3305. if (bitmapSize === 0) {
  3306. collectiveBitmap = readUncompressedBitmap(huffmanInput, totalWidth, currentHeight);
  3307. } else {
  3308. var originalEnd = huffmanInput.end;
  3309. var bitmapEnd = huffmanInput.position + bitmapSize;
  3310. huffmanInput.end = bitmapEnd;
  3311. collectiveBitmap = decodeMMRBitmap(huffmanInput, totalWidth, currentHeight, false);
  3312. huffmanInput.end = originalEnd;
  3313. huffmanInput.position = bitmapEnd;
  3314. }
  3315. var numberOfSymbolsDecoded = symbolWidths.length;
  3316. if (firstSymbol === numberOfSymbolsDecoded - 1) {
  3317. newSymbols.push(collectiveBitmap);
  3318. } else {
  3319. var _i = void 0,
  3320. y = void 0,
  3321. xMin = 0,
  3322. xMax = void 0,
  3323. bitmapWidth = void 0,
  3324. symbolBitmap = void 0;
  3325. for (_i = firstSymbol; _i < numberOfSymbolsDecoded; _i++) {
  3326. bitmapWidth = symbolWidths[_i];
  3327. xMax = xMin + bitmapWidth;
  3328. symbolBitmap = [];
  3329. for (y = 0; y < currentHeight; y++) {
  3330. symbolBitmap.push(collectiveBitmap[y].subarray(xMin, xMax));
  3331. }
  3332. newSymbols.push(symbolBitmap);
  3333. xMin = xMax;
  3334. }
  3335. }
  3336. }
  3337. }
  3338. var exportedSymbols = [],
  3339. flags = [];
  3340. var currentFlag = false,
  3341. i,
  3342. ii;
  3343. var totalSymbolsLength = symbols.length + numberOfNewSymbols;
  3344. while (flags.length < totalSymbolsLength) {
  3345. var runLength = huffman ? tableB1.decode(huffmanInput) : decodeInteger(contextCache, "IAEX", decoder);
  3346. while (runLength--) {
  3347. flags.push(currentFlag);
  3348. }
  3349. currentFlag = !currentFlag;
  3350. }
  3351. for (i = 0, ii = symbols.length; i < ii; i++) {
  3352. if (flags[i]) {
  3353. exportedSymbols.push(symbols[i]);
  3354. }
  3355. }
  3356. for (var j = 0; j < numberOfNewSymbols; i++, j++) {
  3357. if (flags[i]) {
  3358. exportedSymbols.push(newSymbols[j]);
  3359. }
  3360. }
  3361. return exportedSymbols;
  3362. }
  3363. function decodeTextRegion(huffman, refinement, width, height, defaultPixelValue, numberOfSymbolInstances, stripSize, inputSymbols, symbolCodeLength, transposed, dsOffset, referenceCorner, combinationOperator, huffmanTables, refinementTemplateIndex, refinementAt, decodingContext, logStripSize, huffmanInput) {
  3364. if (huffman && refinement) {
  3365. throw new Jbig2Error("refinement with Huffman is not supported");
  3366. }
  3367. var bitmap = [];
  3368. var i, row;
  3369. for (i = 0; i < height; i++) {
  3370. row = new Uint8Array(width);
  3371. if (defaultPixelValue) {
  3372. for (var j = 0; j < width; j++) {
  3373. row[j] = defaultPixelValue;
  3374. }
  3375. }
  3376. bitmap.push(row);
  3377. }
  3378. var decoder = decodingContext.decoder;
  3379. var contextCache = decodingContext.contextCache;
  3380. var stripT = huffman ? -huffmanTables.tableDeltaT.decode(huffmanInput) : -decodeInteger(contextCache, "IADT", decoder);
  3381. var firstS = 0;
  3382. i = 0;
  3383. while (i < numberOfSymbolInstances) {
  3384. var deltaT = huffman ? huffmanTables.tableDeltaT.decode(huffmanInput) : decodeInteger(contextCache, "IADT", decoder);
  3385. stripT += deltaT;
  3386. var deltaFirstS = huffman ? huffmanTables.tableFirstS.decode(huffmanInput) : decodeInteger(contextCache, "IAFS", decoder);
  3387. firstS += deltaFirstS;
  3388. var currentS = firstS;
  3389. do {
  3390. var currentT = 0;
  3391. if (stripSize > 1) {
  3392. currentT = huffman ? huffmanInput.readBits(logStripSize) : decodeInteger(contextCache, "IAIT", decoder);
  3393. }
  3394. var t = stripSize * stripT + currentT;
  3395. var symbolId = huffman ? huffmanTables.symbolIDTable.decode(huffmanInput) : decodeIAID(contextCache, decoder, symbolCodeLength);
  3396. var applyRefinement = refinement && (huffman ? huffmanInput.readBit() : decodeInteger(contextCache, "IARI", decoder));
  3397. var symbolBitmap = inputSymbols[symbolId];
  3398. var symbolWidth = symbolBitmap[0].length;
  3399. var symbolHeight = symbolBitmap.length;
  3400. if (applyRefinement) {
  3401. var rdw = decodeInteger(contextCache, "IARDW", decoder);
  3402. var rdh = decodeInteger(contextCache, "IARDH", decoder);
  3403. var rdx = decodeInteger(contextCache, "IARDX", decoder);
  3404. var rdy = decodeInteger(contextCache, "IARDY", decoder);
  3405. symbolWidth += rdw;
  3406. symbolHeight += rdh;
  3407. symbolBitmap = decodeRefinement(symbolWidth, symbolHeight, refinementTemplateIndex, symbolBitmap, (rdw >> 1) + rdx, (rdh >> 1) + rdy, false, refinementAt, decodingContext);
  3408. }
  3409. var offsetT = t - (referenceCorner & 1 ? 0 : symbolHeight - 1);
  3410. var offsetS = currentS - (referenceCorner & 2 ? symbolWidth - 1 : 0);
  3411. var s2 = void 0,
  3412. t2 = void 0,
  3413. symbolRow = void 0;
  3414. if (transposed) {
  3415. for (s2 = 0; s2 < symbolHeight; s2++) {
  3416. row = bitmap[offsetS + s2];
  3417. if (!row) {
  3418. continue;
  3419. }
  3420. symbolRow = symbolBitmap[s2];
  3421. var maxWidth = Math.min(width - offsetT, symbolWidth);
  3422. switch (combinationOperator) {
  3423. case 0:
  3424. for (t2 = 0; t2 < maxWidth; t2++) {
  3425. row[offsetT + t2] |= symbolRow[t2];
  3426. }
  3427. break;
  3428. case 2:
  3429. for (t2 = 0; t2 < maxWidth; t2++) {
  3430. row[offsetT + t2] ^= symbolRow[t2];
  3431. }
  3432. break;
  3433. default:
  3434. throw new Jbig2Error("operator ".concat(combinationOperator, " is not supported"));
  3435. }
  3436. }
  3437. currentS += symbolHeight - 1;
  3438. } else {
  3439. for (t2 = 0; t2 < symbolHeight; t2++) {
  3440. row = bitmap[offsetT + t2];
  3441. if (!row) {
  3442. continue;
  3443. }
  3444. symbolRow = symbolBitmap[t2];
  3445. switch (combinationOperator) {
  3446. case 0:
  3447. for (s2 = 0; s2 < symbolWidth; s2++) {
  3448. row[offsetS + s2] |= symbolRow[s2];
  3449. }
  3450. break;
  3451. case 2:
  3452. for (s2 = 0; s2 < symbolWidth; s2++) {
  3453. row[offsetS + s2] ^= symbolRow[s2];
  3454. }
  3455. break;
  3456. default:
  3457. throw new Jbig2Error("operator ".concat(combinationOperator, " is not supported"));
  3458. }
  3459. }
  3460. currentS += symbolWidth - 1;
  3461. }
  3462. i++;
  3463. var deltaS = huffman ? huffmanTables.tableDeltaS.decode(huffmanInput) : decodeInteger(contextCache, "IADS", decoder);
  3464. if (deltaS === null) {
  3465. break;
  3466. }
  3467. currentS += deltaS + dsOffset;
  3468. } while (true);
  3469. }
  3470. return bitmap;
  3471. }
  3472. function decodePatternDictionary(mmr, patternWidth, patternHeight, maxPatternIndex, template, decodingContext) {
  3473. var at = [];
  3474. if (!mmr) {
  3475. at.push({
  3476. x: -patternWidth,
  3477. y: 0
  3478. });
  3479. if (template === 0) {
  3480. at.push({
  3481. x: -3,
  3482. y: -1
  3483. }, {
  3484. x: 2,
  3485. y: -2
  3486. }, {
  3487. x: -2,
  3488. y: -2
  3489. });
  3490. }
  3491. }
  3492. var collectiveWidth = (maxPatternIndex + 1) * patternWidth;
  3493. var collectiveBitmap = decodeBitmap(mmr, collectiveWidth, patternHeight, template, false, null, at, decodingContext);
  3494. var patterns = [];
  3495. for (var i = 0; i <= maxPatternIndex; i++) {
  3496. var patternBitmap = [];
  3497. var xMin = patternWidth * i;
  3498. var xMax = xMin + patternWidth;
  3499. for (var y = 0; y < patternHeight; y++) {
  3500. patternBitmap.push(collectiveBitmap[y].subarray(xMin, xMax));
  3501. }
  3502. patterns.push(patternBitmap);
  3503. }
  3504. return patterns;
  3505. }
  3506. function decodeHalftoneRegion(mmr, patterns, template, regionWidth, regionHeight, defaultPixelValue, enableSkip, combinationOperator, gridWidth, gridHeight, gridOffsetX, gridOffsetY, gridVectorX, gridVectorY, decodingContext) {
  3507. var skip = null;
  3508. if (enableSkip) {
  3509. throw new Jbig2Error("skip is not supported");
  3510. }
  3511. if (combinationOperator !== 0) {
  3512. throw new Jbig2Error("operator \"".concat(combinationOperator, "\" is not supported in halftone region"));
  3513. }
  3514. var regionBitmap = [];
  3515. var i, j, row;
  3516. for (i = 0; i < regionHeight; i++) {
  3517. row = new Uint8Array(regionWidth);
  3518. if (defaultPixelValue) {
  3519. for (j = 0; j < regionWidth; j++) {
  3520. row[j] = defaultPixelValue;
  3521. }
  3522. }
  3523. regionBitmap.push(row);
  3524. }
  3525. var numberOfPatterns = patterns.length;
  3526. var pattern0 = patterns[0];
  3527. var patternWidth = pattern0[0].length,
  3528. patternHeight = pattern0.length;
  3529. var bitsPerValue = (0, _core_utils.log2)(numberOfPatterns);
  3530. var at = [];
  3531. if (!mmr) {
  3532. at.push({
  3533. x: template <= 1 ? 3 : 2,
  3534. y: -1
  3535. });
  3536. if (template === 0) {
  3537. at.push({
  3538. x: -3,
  3539. y: -1
  3540. }, {
  3541. x: 2,
  3542. y: -2
  3543. }, {
  3544. x: -2,
  3545. y: -2
  3546. });
  3547. }
  3548. }
  3549. var grayScaleBitPlanes = [];
  3550. var mmrInput, bitmap;
  3551. if (mmr) {
  3552. mmrInput = new Reader(decodingContext.data, decodingContext.start, decodingContext.end);
  3553. }
  3554. for (i = bitsPerValue - 1; i >= 0; i--) {
  3555. if (mmr) {
  3556. bitmap = decodeMMRBitmap(mmrInput, gridWidth, gridHeight, true);
  3557. } else {
  3558. bitmap = decodeBitmap(false, gridWidth, gridHeight, template, false, skip, at, decodingContext);
  3559. }
  3560. grayScaleBitPlanes[i] = bitmap;
  3561. }
  3562. var mg, ng, bit, patternIndex, patternBitmap, x, y, patternRow, regionRow;
  3563. for (mg = 0; mg < gridHeight; mg++) {
  3564. for (ng = 0; ng < gridWidth; ng++) {
  3565. bit = 0;
  3566. patternIndex = 0;
  3567. for (j = bitsPerValue - 1; j >= 0; j--) {
  3568. bit ^= grayScaleBitPlanes[j][mg][ng];
  3569. patternIndex |= bit << j;
  3570. }
  3571. patternBitmap = patterns[patternIndex];
  3572. x = gridOffsetX + mg * gridVectorY + ng * gridVectorX >> 8;
  3573. y = gridOffsetY + mg * gridVectorX - ng * gridVectorY >> 8;
  3574. if (x >= 0 && x + patternWidth <= regionWidth && y >= 0 && y + patternHeight <= regionHeight) {
  3575. for (i = 0; i < patternHeight; i++) {
  3576. regionRow = regionBitmap[y + i];
  3577. patternRow = patternBitmap[i];
  3578. for (j = 0; j < patternWidth; j++) {
  3579. regionRow[x + j] |= patternRow[j];
  3580. }
  3581. }
  3582. } else {
  3583. var regionX = void 0,
  3584. regionY = void 0;
  3585. for (i = 0; i < patternHeight; i++) {
  3586. regionY = y + i;
  3587. if (regionY < 0 || regionY >= regionHeight) {
  3588. continue;
  3589. }
  3590. regionRow = regionBitmap[regionY];
  3591. patternRow = patternBitmap[i];
  3592. for (j = 0; j < patternWidth; j++) {
  3593. regionX = x + j;
  3594. if (regionX >= 0 && regionX < regionWidth) {
  3595. regionRow[regionX] |= patternRow[j];
  3596. }
  3597. }
  3598. }
  3599. }
  3600. }
  3601. }
  3602. return regionBitmap;
  3603. }
  3604. function readSegmentHeader(data, start) {
  3605. var segmentHeader = {};
  3606. segmentHeader.number = (0, _core_utils.readUint32)(data, start);
  3607. var flags = data[start + 4];
  3608. var segmentType = flags & 0x3f;
  3609. if (!SegmentTypes[segmentType]) {
  3610. throw new Jbig2Error("invalid segment type: " + segmentType);
  3611. }
  3612. segmentHeader.type = segmentType;
  3613. segmentHeader.typeName = SegmentTypes[segmentType];
  3614. segmentHeader.deferredNonRetain = !!(flags & 0x80);
  3615. var pageAssociationFieldSize = !!(flags & 0x40);
  3616. var referredFlags = data[start + 5];
  3617. var referredToCount = referredFlags >> 5 & 7;
  3618. var retainBits = [referredFlags & 31];
  3619. var position = start + 6;
  3620. if (referredFlags === 7) {
  3621. referredToCount = (0, _core_utils.readUint32)(data, position - 1) & 0x1fffffff;
  3622. position += 3;
  3623. var bytes = referredToCount + 7 >> 3;
  3624. retainBits[0] = data[position++];
  3625. while (--bytes > 0) {
  3626. retainBits.push(data[position++]);
  3627. }
  3628. } else if (referredFlags === 5 || referredFlags === 6) {
  3629. throw new Jbig2Error("invalid referred-to flags");
  3630. }
  3631. segmentHeader.retainBits = retainBits;
  3632. var referredToSegmentNumberSize = 4;
  3633. if (segmentHeader.number <= 256) {
  3634. referredToSegmentNumberSize = 1;
  3635. } else if (segmentHeader.number <= 65536) {
  3636. referredToSegmentNumberSize = 2;
  3637. }
  3638. var referredTo = [];
  3639. var i, ii;
  3640. for (i = 0; i < referredToCount; i++) {
  3641. var number = void 0;
  3642. if (referredToSegmentNumberSize === 1) {
  3643. number = data[position];
  3644. } else if (referredToSegmentNumberSize === 2) {
  3645. number = (0, _core_utils.readUint16)(data, position);
  3646. } else {
  3647. number = (0, _core_utils.readUint32)(data, position);
  3648. }
  3649. referredTo.push(number);
  3650. position += referredToSegmentNumberSize;
  3651. }
  3652. segmentHeader.referredTo = referredTo;
  3653. if (!pageAssociationFieldSize) {
  3654. segmentHeader.pageAssociation = data[position++];
  3655. } else {
  3656. segmentHeader.pageAssociation = (0, _core_utils.readUint32)(data, position);
  3657. position += 4;
  3658. }
  3659. segmentHeader.length = (0, _core_utils.readUint32)(data, position);
  3660. position += 4;
  3661. if (segmentHeader.length === 0xffffffff) {
  3662. if (segmentType === 38) {
  3663. var genericRegionInfo = readRegionSegmentInformation(data, position);
  3664. var genericRegionSegmentFlags = data[position + RegionSegmentInformationFieldLength];
  3665. var genericRegionMmr = !!(genericRegionSegmentFlags & 1);
  3666. var searchPatternLength = 6;
  3667. var searchPattern = new Uint8Array(searchPatternLength);
  3668. if (!genericRegionMmr) {
  3669. searchPattern[0] = 0xff;
  3670. searchPattern[1] = 0xac;
  3671. }
  3672. searchPattern[2] = genericRegionInfo.height >>> 24 & 0xff;
  3673. searchPattern[3] = genericRegionInfo.height >> 16 & 0xff;
  3674. searchPattern[4] = genericRegionInfo.height >> 8 & 0xff;
  3675. searchPattern[5] = genericRegionInfo.height & 0xff;
  3676. for (i = position, ii = data.length; i < ii; i++) {
  3677. var j = 0;
  3678. while (j < searchPatternLength && searchPattern[j] === data[i + j]) {
  3679. j++;
  3680. }
  3681. if (j === searchPatternLength) {
  3682. segmentHeader.length = i + searchPatternLength;
  3683. break;
  3684. }
  3685. }
  3686. if (segmentHeader.length === 0xffffffff) {
  3687. throw new Jbig2Error("segment end was not found");
  3688. }
  3689. } else {
  3690. throw new Jbig2Error("invalid unknown segment length");
  3691. }
  3692. }
  3693. segmentHeader.headerEnd = position;
  3694. return segmentHeader;
  3695. }
  3696. function readSegments(header, data, start, end) {
  3697. var segments = [];
  3698. var position = start;
  3699. while (position < end) {
  3700. var segmentHeader = readSegmentHeader(data, position);
  3701. position = segmentHeader.headerEnd;
  3702. var segment = {
  3703. header: segmentHeader,
  3704. data: data
  3705. };
  3706. if (!header.randomAccess) {
  3707. segment.start = position;
  3708. position += segmentHeader.length;
  3709. segment.end = position;
  3710. }
  3711. segments.push(segment);
  3712. if (segmentHeader.type === 51) {
  3713. break;
  3714. }
  3715. }
  3716. if (header.randomAccess) {
  3717. for (var i = 0, ii = segments.length; i < ii; i++) {
  3718. segments[i].start = position;
  3719. position += segments[i].header.length;
  3720. segments[i].end = position;
  3721. }
  3722. }
  3723. return segments;
  3724. }
  3725. function readRegionSegmentInformation(data, start) {
  3726. return {
  3727. width: (0, _core_utils.readUint32)(data, start),
  3728. height: (0, _core_utils.readUint32)(data, start + 4),
  3729. x: (0, _core_utils.readUint32)(data, start + 8),
  3730. y: (0, _core_utils.readUint32)(data, start + 12),
  3731. combinationOperator: data[start + 16] & 7
  3732. };
  3733. }
  3734. var RegionSegmentInformationFieldLength = 17;
  3735. function processSegment(segment, visitor) {
  3736. var header = segment.header;
  3737. var data = segment.data,
  3738. end = segment.end;
  3739. var position = segment.start;
  3740. var args, at, i, atLength;
  3741. switch (header.type) {
  3742. case 0:
  3743. var dictionary = {};
  3744. var dictionaryFlags = (0, _core_utils.readUint16)(data, position);
  3745. dictionary.huffman = !!(dictionaryFlags & 1);
  3746. dictionary.refinement = !!(dictionaryFlags & 2);
  3747. dictionary.huffmanDHSelector = dictionaryFlags >> 2 & 3;
  3748. dictionary.huffmanDWSelector = dictionaryFlags >> 4 & 3;
  3749. dictionary.bitmapSizeSelector = dictionaryFlags >> 6 & 1;
  3750. dictionary.aggregationInstancesSelector = dictionaryFlags >> 7 & 1;
  3751. dictionary.bitmapCodingContextUsed = !!(dictionaryFlags & 256);
  3752. dictionary.bitmapCodingContextRetained = !!(dictionaryFlags & 512);
  3753. dictionary.template = dictionaryFlags >> 10 & 3;
  3754. dictionary.refinementTemplate = dictionaryFlags >> 12 & 1;
  3755. position += 2;
  3756. if (!dictionary.huffman) {
  3757. atLength = dictionary.template === 0 ? 4 : 1;
  3758. at = [];
  3759. for (i = 0; i < atLength; i++) {
  3760. at.push({
  3761. x: (0, _core_utils.readInt8)(data, position),
  3762. y: (0, _core_utils.readInt8)(data, position + 1)
  3763. });
  3764. position += 2;
  3765. }
  3766. dictionary.at = at;
  3767. }
  3768. if (dictionary.refinement && !dictionary.refinementTemplate) {
  3769. at = [];
  3770. for (i = 0; i < 2; i++) {
  3771. at.push({
  3772. x: (0, _core_utils.readInt8)(data, position),
  3773. y: (0, _core_utils.readInt8)(data, position + 1)
  3774. });
  3775. position += 2;
  3776. }
  3777. dictionary.refinementAt = at;
  3778. }
  3779. dictionary.numberOfExportedSymbols = (0, _core_utils.readUint32)(data, position);
  3780. position += 4;
  3781. dictionary.numberOfNewSymbols = (0, _core_utils.readUint32)(data, position);
  3782. position += 4;
  3783. args = [dictionary, header.number, header.referredTo, data, position, end];
  3784. break;
  3785. case 6:
  3786. case 7:
  3787. var textRegion = {};
  3788. textRegion.info = readRegionSegmentInformation(data, position);
  3789. position += RegionSegmentInformationFieldLength;
  3790. var textRegionSegmentFlags = (0, _core_utils.readUint16)(data, position);
  3791. position += 2;
  3792. textRegion.huffman = !!(textRegionSegmentFlags & 1);
  3793. textRegion.refinement = !!(textRegionSegmentFlags & 2);
  3794. textRegion.logStripSize = textRegionSegmentFlags >> 2 & 3;
  3795. textRegion.stripSize = 1 << textRegion.logStripSize;
  3796. textRegion.referenceCorner = textRegionSegmentFlags >> 4 & 3;
  3797. textRegion.transposed = !!(textRegionSegmentFlags & 64);
  3798. textRegion.combinationOperator = textRegionSegmentFlags >> 7 & 3;
  3799. textRegion.defaultPixelValue = textRegionSegmentFlags >> 9 & 1;
  3800. textRegion.dsOffset = textRegionSegmentFlags << 17 >> 27;
  3801. textRegion.refinementTemplate = textRegionSegmentFlags >> 15 & 1;
  3802. if (textRegion.huffman) {
  3803. var textRegionHuffmanFlags = (0, _core_utils.readUint16)(data, position);
  3804. position += 2;
  3805. textRegion.huffmanFS = textRegionHuffmanFlags & 3;
  3806. textRegion.huffmanDS = textRegionHuffmanFlags >> 2 & 3;
  3807. textRegion.huffmanDT = textRegionHuffmanFlags >> 4 & 3;
  3808. textRegion.huffmanRefinementDW = textRegionHuffmanFlags >> 6 & 3;
  3809. textRegion.huffmanRefinementDH = textRegionHuffmanFlags >> 8 & 3;
  3810. textRegion.huffmanRefinementDX = textRegionHuffmanFlags >> 10 & 3;
  3811. textRegion.huffmanRefinementDY = textRegionHuffmanFlags >> 12 & 3;
  3812. textRegion.huffmanRefinementSizeSelector = !!(textRegionHuffmanFlags & 0x4000);
  3813. }
  3814. if (textRegion.refinement && !textRegion.refinementTemplate) {
  3815. at = [];
  3816. for (i = 0; i < 2; i++) {
  3817. at.push({
  3818. x: (0, _core_utils.readInt8)(data, position),
  3819. y: (0, _core_utils.readInt8)(data, position + 1)
  3820. });
  3821. position += 2;
  3822. }
  3823. textRegion.refinementAt = at;
  3824. }
  3825. textRegion.numberOfSymbolInstances = (0, _core_utils.readUint32)(data, position);
  3826. position += 4;
  3827. args = [textRegion, header.referredTo, data, position, end];
  3828. break;
  3829. case 16:
  3830. var patternDictionary = {};
  3831. var patternDictionaryFlags = data[position++];
  3832. patternDictionary.mmr = !!(patternDictionaryFlags & 1);
  3833. patternDictionary.template = patternDictionaryFlags >> 1 & 3;
  3834. patternDictionary.patternWidth = data[position++];
  3835. patternDictionary.patternHeight = data[position++];
  3836. patternDictionary.maxPatternIndex = (0, _core_utils.readUint32)(data, position);
  3837. position += 4;
  3838. args = [patternDictionary, header.number, data, position, end];
  3839. break;
  3840. case 22:
  3841. case 23:
  3842. var halftoneRegion = {};
  3843. halftoneRegion.info = readRegionSegmentInformation(data, position);
  3844. position += RegionSegmentInformationFieldLength;
  3845. var halftoneRegionFlags = data[position++];
  3846. halftoneRegion.mmr = !!(halftoneRegionFlags & 1);
  3847. halftoneRegion.template = halftoneRegionFlags >> 1 & 3;
  3848. halftoneRegion.enableSkip = !!(halftoneRegionFlags & 8);
  3849. halftoneRegion.combinationOperator = halftoneRegionFlags >> 4 & 7;
  3850. halftoneRegion.defaultPixelValue = halftoneRegionFlags >> 7 & 1;
  3851. halftoneRegion.gridWidth = (0, _core_utils.readUint32)(data, position);
  3852. position += 4;
  3853. halftoneRegion.gridHeight = (0, _core_utils.readUint32)(data, position);
  3854. position += 4;
  3855. halftoneRegion.gridOffsetX = (0, _core_utils.readUint32)(data, position) & 0xffffffff;
  3856. position += 4;
  3857. halftoneRegion.gridOffsetY = (0, _core_utils.readUint32)(data, position) & 0xffffffff;
  3858. position += 4;
  3859. halftoneRegion.gridVectorX = (0, _core_utils.readUint16)(data, position);
  3860. position += 2;
  3861. halftoneRegion.gridVectorY = (0, _core_utils.readUint16)(data, position);
  3862. position += 2;
  3863. args = [halftoneRegion, header.referredTo, data, position, end];
  3864. break;
  3865. case 38:
  3866. case 39:
  3867. var genericRegion = {};
  3868. genericRegion.info = readRegionSegmentInformation(data, position);
  3869. position += RegionSegmentInformationFieldLength;
  3870. var genericRegionSegmentFlags = data[position++];
  3871. genericRegion.mmr = !!(genericRegionSegmentFlags & 1);
  3872. genericRegion.template = genericRegionSegmentFlags >> 1 & 3;
  3873. genericRegion.prediction = !!(genericRegionSegmentFlags & 8);
  3874. if (!genericRegion.mmr) {
  3875. atLength = genericRegion.template === 0 ? 4 : 1;
  3876. at = [];
  3877. for (i = 0; i < atLength; i++) {
  3878. at.push({
  3879. x: (0, _core_utils.readInt8)(data, position),
  3880. y: (0, _core_utils.readInt8)(data, position + 1)
  3881. });
  3882. position += 2;
  3883. }
  3884. genericRegion.at = at;
  3885. }
  3886. args = [genericRegion, data, position, end];
  3887. break;
  3888. case 48:
  3889. var pageInfo = {
  3890. width: (0, _core_utils.readUint32)(data, position),
  3891. height: (0, _core_utils.readUint32)(data, position + 4),
  3892. resolutionX: (0, _core_utils.readUint32)(data, position + 8),
  3893. resolutionY: (0, _core_utils.readUint32)(data, position + 12)
  3894. };
  3895. if (pageInfo.height === 0xffffffff) {
  3896. delete pageInfo.height;
  3897. }
  3898. var pageSegmentFlags = data[position + 16];
  3899. (0, _core_utils.readUint16)(data, position + 17);
  3900. pageInfo.lossless = !!(pageSegmentFlags & 1);
  3901. pageInfo.refinement = !!(pageSegmentFlags & 2);
  3902. pageInfo.defaultPixelValue = pageSegmentFlags >> 2 & 1;
  3903. pageInfo.combinationOperator = pageSegmentFlags >> 3 & 3;
  3904. pageInfo.requiresBuffer = !!(pageSegmentFlags & 32);
  3905. pageInfo.combinationOperatorOverride = !!(pageSegmentFlags & 64);
  3906. args = [pageInfo];
  3907. break;
  3908. case 49:
  3909. break;
  3910. case 50:
  3911. break;
  3912. case 51:
  3913. break;
  3914. case 53:
  3915. args = [header.number, data, position, end];
  3916. break;
  3917. case 62:
  3918. break;
  3919. default:
  3920. throw new Jbig2Error("segment type ".concat(header.typeName, "(").concat(header.type, ")") + " is not implemented");
  3921. }
  3922. var callbackName = "on" + header.typeName;
  3923. if (callbackName in visitor) {
  3924. visitor[callbackName].apply(visitor, args);
  3925. }
  3926. }
  3927. function processSegments(segments, visitor) {
  3928. for (var i = 0, ii = segments.length; i < ii; i++) {
  3929. processSegment(segments[i], visitor);
  3930. }
  3931. }
  3932. function parseJbig2Chunks(chunks) {
  3933. var visitor = new SimpleSegmentVisitor();
  3934. for (var i = 0, ii = chunks.length; i < ii; i++) {
  3935. var chunk = chunks[i];
  3936. var segments = readSegments({}, chunk.data, chunk.start, chunk.end);
  3937. processSegments(segments, visitor);
  3938. }
  3939. return visitor.buffer;
  3940. }
  3941. function parseJbig2(data) {
  3942. var end = data.length;
  3943. var position = 0;
  3944. 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) {
  3945. throw new Jbig2Error("parseJbig2 - invalid header.");
  3946. }
  3947. var header = Object.create(null);
  3948. position += 8;
  3949. var flags = data[position++];
  3950. header.randomAccess = !(flags & 1);
  3951. if (!(flags & 2)) {
  3952. header.numberOfPages = (0, _core_utils.readUint32)(data, position);
  3953. position += 4;
  3954. }
  3955. var segments = readSegments(header, data, position, end);
  3956. var visitor = new SimpleSegmentVisitor();
  3957. processSegments(segments, visitor);
  3958. var _visitor$currentPageI = visitor.currentPageInfo,
  3959. width = _visitor$currentPageI.width,
  3960. height = _visitor$currentPageI.height;
  3961. var bitPacked = visitor.buffer;
  3962. var imgData = new Uint8ClampedArray(width * height);
  3963. var q = 0,
  3964. k = 0;
  3965. for (var i = 0; i < height; i++) {
  3966. var mask = 0,
  3967. buffer = void 0;
  3968. for (var j = 0; j < width; j++) {
  3969. if (!mask) {
  3970. mask = 128;
  3971. buffer = bitPacked[k++];
  3972. }
  3973. imgData[q++] = buffer & mask ? 0 : 255;
  3974. mask >>= 1;
  3975. }
  3976. }
  3977. return {
  3978. imgData: imgData,
  3979. width: width,
  3980. height: height
  3981. };
  3982. }
  3983. var SimpleSegmentVisitor = /*#__PURE__*/function () {
  3984. function SimpleSegmentVisitor() {
  3985. _classCallCheck(this, SimpleSegmentVisitor);
  3986. }
  3987. _createClass(SimpleSegmentVisitor, [{
  3988. key: "onPageInformation",
  3989. value: function onPageInformation(info) {
  3990. this.currentPageInfo = info;
  3991. var rowSize = info.width + 7 >> 3;
  3992. var buffer = new Uint8ClampedArray(rowSize * info.height);
  3993. if (info.defaultPixelValue) {
  3994. for (var i = 0, ii = buffer.length; i < ii; i++) {
  3995. buffer[i] = 0xff;
  3996. }
  3997. }
  3998. this.buffer = buffer;
  3999. }
  4000. }, {
  4001. key: "drawBitmap",
  4002. value: function drawBitmap(regionInfo, bitmap) {
  4003. var pageInfo = this.currentPageInfo;
  4004. var width = regionInfo.width,
  4005. height = regionInfo.height;
  4006. var rowSize = pageInfo.width + 7 >> 3;
  4007. var combinationOperator = pageInfo.combinationOperatorOverride ? regionInfo.combinationOperator : pageInfo.combinationOperator;
  4008. var buffer = this.buffer;
  4009. var mask0 = 128 >> (regionInfo.x & 7);
  4010. var offset0 = regionInfo.y * rowSize + (regionInfo.x >> 3);
  4011. var i, j, mask, offset;
  4012. switch (combinationOperator) {
  4013. case 0:
  4014. for (i = 0; i < height; i++) {
  4015. mask = mask0;
  4016. offset = offset0;
  4017. for (j = 0; j < width; j++) {
  4018. if (bitmap[i][j]) {
  4019. buffer[offset] |= mask;
  4020. }
  4021. mask >>= 1;
  4022. if (!mask) {
  4023. mask = 128;
  4024. offset++;
  4025. }
  4026. }
  4027. offset0 += rowSize;
  4028. }
  4029. break;
  4030. case 2:
  4031. for (i = 0; i < height; i++) {
  4032. mask = mask0;
  4033. offset = offset0;
  4034. for (j = 0; j < width; j++) {
  4035. if (bitmap[i][j]) {
  4036. buffer[offset] ^= mask;
  4037. }
  4038. mask >>= 1;
  4039. if (!mask) {
  4040. mask = 128;
  4041. offset++;
  4042. }
  4043. }
  4044. offset0 += rowSize;
  4045. }
  4046. break;
  4047. default:
  4048. throw new Jbig2Error("operator ".concat(combinationOperator, " is not supported"));
  4049. }
  4050. }
  4051. }, {
  4052. key: "onImmediateGenericRegion",
  4053. value: function onImmediateGenericRegion(region, data, start, end) {
  4054. var regionInfo = region.info;
  4055. var decodingContext = new DecodingContext(data, start, end);
  4056. var bitmap = decodeBitmap(region.mmr, regionInfo.width, regionInfo.height, region.template, region.prediction, null, region.at, decodingContext);
  4057. this.drawBitmap(regionInfo, bitmap);
  4058. }
  4059. }, {
  4060. key: "onImmediateLosslessGenericRegion",
  4061. value: function onImmediateLosslessGenericRegion() {
  4062. this.onImmediateGenericRegion.apply(this, arguments);
  4063. }
  4064. }, {
  4065. key: "onSymbolDictionary",
  4066. value: function onSymbolDictionary(dictionary, currentSegment, referredSegments, data, start, end) {
  4067. var huffmanTables, huffmanInput;
  4068. if (dictionary.huffman) {
  4069. huffmanTables = getSymbolDictionaryHuffmanTables(dictionary, referredSegments, this.customTables);
  4070. huffmanInput = new Reader(data, start, end);
  4071. }
  4072. var symbols = this.symbols;
  4073. if (!symbols) {
  4074. this.symbols = symbols = {};
  4075. }
  4076. var inputSymbols = [];
  4077. for (var i = 0, ii = referredSegments.length; i < ii; i++) {
  4078. var referredSymbols = symbols[referredSegments[i]];
  4079. if (referredSymbols) {
  4080. inputSymbols = inputSymbols.concat(referredSymbols);
  4081. }
  4082. }
  4083. var decodingContext = new DecodingContext(data, start, end);
  4084. symbols[currentSegment] = decodeSymbolDictionary(dictionary.huffman, dictionary.refinement, inputSymbols, dictionary.numberOfNewSymbols, dictionary.numberOfExportedSymbols, huffmanTables, dictionary.template, dictionary.at, dictionary.refinementTemplate, dictionary.refinementAt, decodingContext, huffmanInput);
  4085. }
  4086. }, {
  4087. key: "onImmediateTextRegion",
  4088. value: function onImmediateTextRegion(region, referredSegments, data, start, end) {
  4089. var regionInfo = region.info;
  4090. var huffmanTables, huffmanInput;
  4091. var symbols = this.symbols;
  4092. var inputSymbols = [];
  4093. for (var i = 0, ii = referredSegments.length; i < ii; i++) {
  4094. var referredSymbols = symbols[referredSegments[i]];
  4095. if (referredSymbols) {
  4096. inputSymbols = inputSymbols.concat(referredSymbols);
  4097. }
  4098. }
  4099. var symbolCodeLength = (0, _core_utils.log2)(inputSymbols.length);
  4100. if (region.huffman) {
  4101. huffmanInput = new Reader(data, start, end);
  4102. huffmanTables = getTextRegionHuffmanTables(region, referredSegments, this.customTables, inputSymbols.length, huffmanInput);
  4103. }
  4104. var decodingContext = new DecodingContext(data, start, end);
  4105. 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, region.logStripSize, huffmanInput);
  4106. this.drawBitmap(regionInfo, bitmap);
  4107. }
  4108. }, {
  4109. key: "onImmediateLosslessTextRegion",
  4110. value: function onImmediateLosslessTextRegion() {
  4111. this.onImmediateTextRegion.apply(this, arguments);
  4112. }
  4113. }, {
  4114. key: "onPatternDictionary",
  4115. value: function onPatternDictionary(dictionary, currentSegment, data, start, end) {
  4116. var patterns = this.patterns;
  4117. if (!patterns) {
  4118. this.patterns = patterns = {};
  4119. }
  4120. var decodingContext = new DecodingContext(data, start, end);
  4121. patterns[currentSegment] = decodePatternDictionary(dictionary.mmr, dictionary.patternWidth, dictionary.patternHeight, dictionary.maxPatternIndex, dictionary.template, decodingContext);
  4122. }
  4123. }, {
  4124. key: "onImmediateHalftoneRegion",
  4125. value: function onImmediateHalftoneRegion(region, referredSegments, data, start, end) {
  4126. var patterns = this.patterns[referredSegments[0]];
  4127. var regionInfo = region.info;
  4128. var decodingContext = new DecodingContext(data, start, end);
  4129. var bitmap = decodeHalftoneRegion(region.mmr, patterns, region.template, regionInfo.width, regionInfo.height, region.defaultPixelValue, region.enableSkip, region.combinationOperator, region.gridWidth, region.gridHeight, region.gridOffsetX, region.gridOffsetY, region.gridVectorX, region.gridVectorY, decodingContext);
  4130. this.drawBitmap(regionInfo, bitmap);
  4131. }
  4132. }, {
  4133. key: "onImmediateLosslessHalftoneRegion",
  4134. value: function onImmediateLosslessHalftoneRegion() {
  4135. this.onImmediateHalftoneRegion.apply(this, arguments);
  4136. }
  4137. }, {
  4138. key: "onTables",
  4139. value: function onTables(currentSegment, data, start, end) {
  4140. var customTables = this.customTables;
  4141. if (!customTables) {
  4142. this.customTables = customTables = {};
  4143. }
  4144. customTables[currentSegment] = decodeTablesSegment(data, start, end);
  4145. }
  4146. }]);
  4147. return SimpleSegmentVisitor;
  4148. }();
  4149. var HuffmanLine = function HuffmanLine(lineData) {
  4150. _classCallCheck(this, HuffmanLine);
  4151. if (lineData.length === 2) {
  4152. this.isOOB = true;
  4153. this.rangeLow = 0;
  4154. this.prefixLength = lineData[0];
  4155. this.rangeLength = 0;
  4156. this.prefixCode = lineData[1];
  4157. this.isLowerRange = false;
  4158. } else {
  4159. this.isOOB = false;
  4160. this.rangeLow = lineData[0];
  4161. this.prefixLength = lineData[1];
  4162. this.rangeLength = lineData[2];
  4163. this.prefixCode = lineData[3];
  4164. this.isLowerRange = lineData[4] === "lower";
  4165. }
  4166. };
  4167. var HuffmanTreeNode = /*#__PURE__*/function () {
  4168. function HuffmanTreeNode(line) {
  4169. _classCallCheck(this, HuffmanTreeNode);
  4170. this.children = [];
  4171. if (line) {
  4172. this.isLeaf = true;
  4173. this.rangeLength = line.rangeLength;
  4174. this.rangeLow = line.rangeLow;
  4175. this.isLowerRange = line.isLowerRange;
  4176. this.isOOB = line.isOOB;
  4177. } else {
  4178. this.isLeaf = false;
  4179. }
  4180. }
  4181. _createClass(HuffmanTreeNode, [{
  4182. key: "buildTree",
  4183. value: function buildTree(line, shift) {
  4184. var bit = line.prefixCode >> shift & 1;
  4185. if (shift <= 0) {
  4186. this.children[bit] = new HuffmanTreeNode(line);
  4187. } else {
  4188. var node = this.children[bit];
  4189. if (!node) {
  4190. this.children[bit] = node = new HuffmanTreeNode(null);
  4191. }
  4192. node.buildTree(line, shift - 1);
  4193. }
  4194. }
  4195. }, {
  4196. key: "decodeNode",
  4197. value: function decodeNode(reader) {
  4198. if (this.isLeaf) {
  4199. if (this.isOOB) {
  4200. return null;
  4201. }
  4202. var htOffset = reader.readBits(this.rangeLength);
  4203. return this.rangeLow + (this.isLowerRange ? -htOffset : htOffset);
  4204. }
  4205. var node = this.children[reader.readBit()];
  4206. if (!node) {
  4207. throw new Jbig2Error("invalid Huffman data");
  4208. }
  4209. return node.decodeNode(reader);
  4210. }
  4211. }]);
  4212. return HuffmanTreeNode;
  4213. }();
  4214. var HuffmanTable = /*#__PURE__*/function () {
  4215. function HuffmanTable(lines, prefixCodesDone) {
  4216. _classCallCheck(this, HuffmanTable);
  4217. if (!prefixCodesDone) {
  4218. this.assignPrefixCodes(lines);
  4219. }
  4220. this.rootNode = new HuffmanTreeNode(null);
  4221. for (var i = 0, ii = lines.length; i < ii; i++) {
  4222. var line = lines[i];
  4223. if (line.prefixLength > 0) {
  4224. this.rootNode.buildTree(line, line.prefixLength - 1);
  4225. }
  4226. }
  4227. }
  4228. _createClass(HuffmanTable, [{
  4229. key: "decode",
  4230. value: function decode(reader) {
  4231. return this.rootNode.decodeNode(reader);
  4232. }
  4233. }, {
  4234. key: "assignPrefixCodes",
  4235. value: function assignPrefixCodes(lines) {
  4236. var linesLength = lines.length;
  4237. var prefixLengthMax = 0;
  4238. for (var i = 0; i < linesLength; i++) {
  4239. prefixLengthMax = Math.max(prefixLengthMax, lines[i].prefixLength);
  4240. }
  4241. var histogram = new Uint32Array(prefixLengthMax + 1);
  4242. for (var _i2 = 0; _i2 < linesLength; _i2++) {
  4243. histogram[lines[_i2].prefixLength]++;
  4244. }
  4245. var currentLength = 1,
  4246. firstCode = 0,
  4247. currentCode,
  4248. currentTemp,
  4249. line;
  4250. histogram[0] = 0;
  4251. while (currentLength <= prefixLengthMax) {
  4252. firstCode = firstCode + histogram[currentLength - 1] << 1;
  4253. currentCode = firstCode;
  4254. currentTemp = 0;
  4255. while (currentTemp < linesLength) {
  4256. line = lines[currentTemp];
  4257. if (line.prefixLength === currentLength) {
  4258. line.prefixCode = currentCode;
  4259. currentCode++;
  4260. }
  4261. currentTemp++;
  4262. }
  4263. currentLength++;
  4264. }
  4265. }
  4266. }]);
  4267. return HuffmanTable;
  4268. }();
  4269. function decodeTablesSegment(data, start, end) {
  4270. var flags = data[start];
  4271. var lowestValue = (0, _core_utils.readUint32)(data, start + 1) & 0xffffffff;
  4272. var highestValue = (0, _core_utils.readUint32)(data, start + 5) & 0xffffffff;
  4273. var reader = new Reader(data, start + 9, end);
  4274. var prefixSizeBits = (flags >> 1 & 7) + 1;
  4275. var rangeSizeBits = (flags >> 4 & 7) + 1;
  4276. var lines = [];
  4277. var prefixLength,
  4278. rangeLength,
  4279. currentRangeLow = lowestValue;
  4280. do {
  4281. prefixLength = reader.readBits(prefixSizeBits);
  4282. rangeLength = reader.readBits(rangeSizeBits);
  4283. lines.push(new HuffmanLine([currentRangeLow, prefixLength, rangeLength, 0]));
  4284. currentRangeLow += 1 << rangeLength;
  4285. } while (currentRangeLow < highestValue);
  4286. prefixLength = reader.readBits(prefixSizeBits);
  4287. lines.push(new HuffmanLine([lowestValue - 1, prefixLength, 32, 0, "lower"]));
  4288. prefixLength = reader.readBits(prefixSizeBits);
  4289. lines.push(new HuffmanLine([highestValue, prefixLength, 32, 0]));
  4290. if (flags & 1) {
  4291. prefixLength = reader.readBits(prefixSizeBits);
  4292. lines.push(new HuffmanLine([prefixLength, 0]));
  4293. }
  4294. return new HuffmanTable(lines, false);
  4295. }
  4296. var standardTablesCache = {};
  4297. function getStandardTable(number) {
  4298. var table = standardTablesCache[number];
  4299. if (table) {
  4300. return table;
  4301. }
  4302. var lines;
  4303. switch (number) {
  4304. case 1:
  4305. lines = [[0, 1, 4, 0x0], [16, 2, 8, 0x2], [272, 3, 16, 0x6], [65808, 3, 32, 0x7]];
  4306. break;
  4307. case 2:
  4308. lines = [[0, 1, 0, 0x0], [1, 2, 0, 0x2], [2, 3, 0, 0x6], [3, 4, 3, 0xe], [11, 5, 6, 0x1e], [75, 6, 32, 0x3e], [6, 0x3f]];
  4309. break;
  4310. case 3:
  4311. lines = [[-256, 8, 8, 0xfe], [0, 1, 0, 0x0], [1, 2, 0, 0x2], [2, 3, 0, 0x6], [3, 4, 3, 0xe], [11, 5, 6, 0x1e], [-257, 8, 32, 0xff, "lower"], [75, 7, 32, 0x7e], [6, 0x3e]];
  4312. break;
  4313. case 4:
  4314. lines = [[1, 1, 0, 0x0], [2, 2, 0, 0x2], [3, 3, 0, 0x6], [4, 4, 3, 0xe], [12, 5, 6, 0x1e], [76, 5, 32, 0x1f]];
  4315. break;
  4316. case 5:
  4317. lines = [[-255, 7, 8, 0x7e], [1, 1, 0, 0x0], [2, 2, 0, 0x2], [3, 3, 0, 0x6], [4, 4, 3, 0xe], [12, 5, 6, 0x1e], [-256, 7, 32, 0x7f, "lower"], [76, 6, 32, 0x3e]];
  4318. break;
  4319. case 6:
  4320. lines = [[-2048, 5, 10, 0x1c], [-1024, 4, 9, 0x8], [-512, 4, 8, 0x9], [-256, 4, 7, 0xa], [-128, 5, 6, 0x1d], [-64, 5, 5, 0x1e], [-32, 4, 5, 0xb], [0, 2, 7, 0x0], [128, 3, 7, 0x2], [256, 3, 8, 0x3], [512, 4, 9, 0xc], [1024, 4, 10, 0xd], [-2049, 6, 32, 0x3e, "lower"], [2048, 6, 32, 0x3f]];
  4321. break;
  4322. case 7:
  4323. lines = [[-1024, 4, 9, 0x8], [-512, 3, 8, 0x0], [-256, 4, 7, 0x9], [-128, 5, 6, 0x1a], [-64, 5, 5, 0x1b], [-32, 4, 5, 0xa], [0, 4, 5, 0xb], [32, 5, 5, 0x1c], [64, 5, 6, 0x1d], [128, 4, 7, 0xc], [256, 3, 8, 0x1], [512, 3, 9, 0x2], [1024, 3, 10, 0x3], [-1025, 5, 32, 0x1e, "lower"], [2048, 5, 32, 0x1f]];
  4324. break;
  4325. case 8:
  4326. lines = [[-15, 8, 3, 0xfc], [-7, 9, 1, 0x1fc], [-5, 8, 1, 0xfd], [-3, 9, 0, 0x1fd], [-2, 7, 0, 0x7c], [-1, 4, 0, 0xa], [0, 2, 1, 0x0], [2, 5, 0, 0x1a], [3, 6, 0, 0x3a], [4, 3, 4, 0x4], [20, 6, 1, 0x3b], [22, 4, 4, 0xb], [38, 4, 5, 0xc], [70, 5, 6, 0x1b], [134, 5, 7, 0x1c], [262, 6, 7, 0x3c], [390, 7, 8, 0x7d], [646, 6, 10, 0x3d], [-16, 9, 32, 0x1fe, "lower"], [1670, 9, 32, 0x1ff], [2, 0x1]];
  4327. break;
  4328. case 9:
  4329. lines = [[-31, 8, 4, 0xfc], [-15, 9, 2, 0x1fc], [-11, 8, 2, 0xfd], [-7, 9, 1, 0x1fd], [-5, 7, 1, 0x7c], [-3, 4, 1, 0xa], [-1, 3, 1, 0x2], [1, 3, 1, 0x3], [3, 5, 1, 0x1a], [5, 6, 1, 0x3a], [7, 3, 5, 0x4], [39, 6, 2, 0x3b], [43, 4, 5, 0xb], [75, 4, 6, 0xc], [139, 5, 7, 0x1b], [267, 5, 8, 0x1c], [523, 6, 8, 0x3c], [779, 7, 9, 0x7d], [1291, 6, 11, 0x3d], [-32, 9, 32, 0x1fe, "lower"], [3339, 9, 32, 0x1ff], [2, 0x0]];
  4330. break;
  4331. case 10:
  4332. lines = [[-21, 7, 4, 0x7a], [-5, 8, 0, 0xfc], [-4, 7, 0, 0x7b], [-3, 5, 0, 0x18], [-2, 2, 2, 0x0], [2, 5, 0, 0x19], [3, 6, 0, 0x36], [4, 7, 0, 0x7c], [5, 8, 0, 0xfd], [6, 2, 6, 0x1], [70, 5, 5, 0x1a], [102, 6, 5, 0x37], [134, 6, 6, 0x38], [198, 6, 7, 0x39], [326, 6, 8, 0x3a], [582, 6, 9, 0x3b], [1094, 6, 10, 0x3c], [2118, 7, 11, 0x7d], [-22, 8, 32, 0xfe, "lower"], [4166, 8, 32, 0xff], [2, 0x2]];
  4333. break;
  4334. case 11:
  4335. lines = [[1, 1, 0, 0x0], [2, 2, 1, 0x2], [4, 4, 0, 0xc], [5, 4, 1, 0xd], [7, 5, 1, 0x1c], [9, 5, 2, 0x1d], [13, 6, 2, 0x3c], [17, 7, 2, 0x7a], [21, 7, 3, 0x7b], [29, 7, 4, 0x7c], [45, 7, 5, 0x7d], [77, 7, 6, 0x7e], [141, 7, 32, 0x7f]];
  4336. break;
  4337. case 12:
  4338. lines = [[1, 1, 0, 0x0], [2, 2, 0, 0x2], [3, 3, 1, 0x6], [5, 5, 0, 0x1c], [6, 5, 1, 0x1d], [8, 6, 1, 0x3c], [10, 7, 0, 0x7a], [11, 7, 1, 0x7b], [13, 7, 2, 0x7c], [17, 7, 3, 0x7d], [25, 7, 4, 0x7e], [41, 8, 5, 0xfe], [73, 8, 32, 0xff]];
  4339. break;
  4340. case 13:
  4341. lines = [[1, 1, 0, 0x0], [2, 3, 0, 0x4], [3, 4, 0, 0xc], [4, 5, 0, 0x1c], [5, 4, 1, 0xd], [7, 3, 3, 0x5], [15, 6, 1, 0x3a], [17, 6, 2, 0x3b], [21, 6, 3, 0x3c], [29, 6, 4, 0x3d], [45, 6, 5, 0x3e], [77, 7, 6, 0x7e], [141, 7, 32, 0x7f]];
  4342. break;
  4343. case 14:
  4344. lines = [[-2, 3, 0, 0x4], [-1, 3, 0, 0x5], [0, 1, 0, 0x0], [1, 3, 0, 0x6], [2, 3, 0, 0x7]];
  4345. break;
  4346. case 15:
  4347. lines = [[-24, 7, 4, 0x7c], [-8, 6, 2, 0x3c], [-4, 5, 1, 0x1c], [-2, 4, 0, 0xc], [-1, 3, 0, 0x4], [0, 1, 0, 0x0], [1, 3, 0, 0x5], [2, 4, 0, 0xd], [3, 5, 1, 0x1d], [5, 6, 2, 0x3d], [9, 7, 4, 0x7d], [-25, 7, 32, 0x7e, "lower"], [25, 7, 32, 0x7f]];
  4348. break;
  4349. default:
  4350. throw new Jbig2Error("standard table B.".concat(number, " does not exist"));
  4351. }
  4352. for (var i = 0, ii = lines.length; i < ii; i++) {
  4353. lines[i] = new HuffmanLine(lines[i]);
  4354. }
  4355. table = new HuffmanTable(lines, true);
  4356. standardTablesCache[number] = table;
  4357. return table;
  4358. }
  4359. var Reader = /*#__PURE__*/function () {
  4360. function Reader(data, start, end) {
  4361. _classCallCheck(this, Reader);
  4362. this.data = data;
  4363. this.start = start;
  4364. this.end = end;
  4365. this.position = start;
  4366. this.shift = -1;
  4367. this.currentByte = 0;
  4368. }
  4369. _createClass(Reader, [{
  4370. key: "readBit",
  4371. value: function readBit() {
  4372. if (this.shift < 0) {
  4373. if (this.position >= this.end) {
  4374. throw new Jbig2Error("end of data while reading bit");
  4375. }
  4376. this.currentByte = this.data[this.position++];
  4377. this.shift = 7;
  4378. }
  4379. var bit = this.currentByte >> this.shift & 1;
  4380. this.shift--;
  4381. return bit;
  4382. }
  4383. }, {
  4384. key: "readBits",
  4385. value: function readBits(numBits) {
  4386. var result = 0,
  4387. i;
  4388. for (i = numBits - 1; i >= 0; i--) {
  4389. result |= this.readBit() << i;
  4390. }
  4391. return result;
  4392. }
  4393. }, {
  4394. key: "byteAlign",
  4395. value: function byteAlign() {
  4396. this.shift = -1;
  4397. }
  4398. }, {
  4399. key: "next",
  4400. value: function next() {
  4401. if (this.position >= this.end) {
  4402. return -1;
  4403. }
  4404. return this.data[this.position++];
  4405. }
  4406. }]);
  4407. return Reader;
  4408. }();
  4409. function getCustomHuffmanTable(index, referredTo, customTables) {
  4410. var currentIndex = 0;
  4411. for (var i = 0, ii = referredTo.length; i < ii; i++) {
  4412. var table = customTables[referredTo[i]];
  4413. if (table) {
  4414. if (index === currentIndex) {
  4415. return table;
  4416. }
  4417. currentIndex++;
  4418. }
  4419. }
  4420. throw new Jbig2Error("can't find custom Huffman table");
  4421. }
  4422. function getTextRegionHuffmanTables(textRegion, referredTo, customTables, numberOfSymbols, reader) {
  4423. var codes = [];
  4424. for (var i = 0; i <= 34; i++) {
  4425. var codeLength = reader.readBits(4);
  4426. codes.push(new HuffmanLine([i, codeLength, 0, 0]));
  4427. }
  4428. var runCodesTable = new HuffmanTable(codes, false);
  4429. codes.length = 0;
  4430. for (var _i3 = 0; _i3 < numberOfSymbols;) {
  4431. var _codeLength = runCodesTable.decode(reader);
  4432. if (_codeLength >= 32) {
  4433. var repeatedLength = void 0,
  4434. numberOfRepeats = void 0,
  4435. j = void 0;
  4436. switch (_codeLength) {
  4437. case 32:
  4438. if (_i3 === 0) {
  4439. throw new Jbig2Error("no previous value in symbol ID table");
  4440. }
  4441. numberOfRepeats = reader.readBits(2) + 3;
  4442. repeatedLength = codes[_i3 - 1].prefixLength;
  4443. break;
  4444. case 33:
  4445. numberOfRepeats = reader.readBits(3) + 3;
  4446. repeatedLength = 0;
  4447. break;
  4448. case 34:
  4449. numberOfRepeats = reader.readBits(7) + 11;
  4450. repeatedLength = 0;
  4451. break;
  4452. default:
  4453. throw new Jbig2Error("invalid code length in symbol ID table");
  4454. }
  4455. for (j = 0; j < numberOfRepeats; j++) {
  4456. codes.push(new HuffmanLine([_i3, repeatedLength, 0, 0]));
  4457. _i3++;
  4458. }
  4459. } else {
  4460. codes.push(new HuffmanLine([_i3, _codeLength, 0, 0]));
  4461. _i3++;
  4462. }
  4463. }
  4464. reader.byteAlign();
  4465. var symbolIDTable = new HuffmanTable(codes, false);
  4466. var customIndex = 0,
  4467. tableFirstS,
  4468. tableDeltaS,
  4469. tableDeltaT;
  4470. switch (textRegion.huffmanFS) {
  4471. case 0:
  4472. case 1:
  4473. tableFirstS = getStandardTable(textRegion.huffmanFS + 6);
  4474. break;
  4475. case 3:
  4476. tableFirstS = getCustomHuffmanTable(customIndex, referredTo, customTables);
  4477. customIndex++;
  4478. break;
  4479. default:
  4480. throw new Jbig2Error("invalid Huffman FS selector");
  4481. }
  4482. switch (textRegion.huffmanDS) {
  4483. case 0:
  4484. case 1:
  4485. case 2:
  4486. tableDeltaS = getStandardTable(textRegion.huffmanDS + 8);
  4487. break;
  4488. case 3:
  4489. tableDeltaS = getCustomHuffmanTable(customIndex, referredTo, customTables);
  4490. customIndex++;
  4491. break;
  4492. default:
  4493. throw new Jbig2Error("invalid Huffman DS selector");
  4494. }
  4495. switch (textRegion.huffmanDT) {
  4496. case 0:
  4497. case 1:
  4498. case 2:
  4499. tableDeltaT = getStandardTable(textRegion.huffmanDT + 11);
  4500. break;
  4501. case 3:
  4502. tableDeltaT = getCustomHuffmanTable(customIndex, referredTo, customTables);
  4503. customIndex++;
  4504. break;
  4505. default:
  4506. throw new Jbig2Error("invalid Huffman DT selector");
  4507. }
  4508. if (textRegion.refinement) {
  4509. throw new Jbig2Error("refinement with Huffman is not supported");
  4510. }
  4511. return {
  4512. symbolIDTable: symbolIDTable,
  4513. tableFirstS: tableFirstS,
  4514. tableDeltaS: tableDeltaS,
  4515. tableDeltaT: tableDeltaT
  4516. };
  4517. }
  4518. function getSymbolDictionaryHuffmanTables(dictionary, referredTo, customTables) {
  4519. var customIndex = 0,
  4520. tableDeltaHeight,
  4521. tableDeltaWidth;
  4522. switch (dictionary.huffmanDHSelector) {
  4523. case 0:
  4524. case 1:
  4525. tableDeltaHeight = getStandardTable(dictionary.huffmanDHSelector + 4);
  4526. break;
  4527. case 3:
  4528. tableDeltaHeight = getCustomHuffmanTable(customIndex, referredTo, customTables);
  4529. customIndex++;
  4530. break;
  4531. default:
  4532. throw new Jbig2Error("invalid Huffman DH selector");
  4533. }
  4534. switch (dictionary.huffmanDWSelector) {
  4535. case 0:
  4536. case 1:
  4537. tableDeltaWidth = getStandardTable(dictionary.huffmanDWSelector + 2);
  4538. break;
  4539. case 3:
  4540. tableDeltaWidth = getCustomHuffmanTable(customIndex, referredTo, customTables);
  4541. customIndex++;
  4542. break;
  4543. default:
  4544. throw new Jbig2Error("invalid Huffman DW selector");
  4545. }
  4546. var tableBitmapSize, tableAggregateInstances;
  4547. if (dictionary.bitmapSizeSelector) {
  4548. tableBitmapSize = getCustomHuffmanTable(customIndex, referredTo, customTables);
  4549. customIndex++;
  4550. } else {
  4551. tableBitmapSize = getStandardTable(1);
  4552. }
  4553. if (dictionary.aggregationInstancesSelector) {
  4554. tableAggregateInstances = getCustomHuffmanTable(customIndex, referredTo, customTables);
  4555. } else {
  4556. tableAggregateInstances = getStandardTable(1);
  4557. }
  4558. return {
  4559. tableDeltaHeight: tableDeltaHeight,
  4560. tableDeltaWidth: tableDeltaWidth,
  4561. tableBitmapSize: tableBitmapSize,
  4562. tableAggregateInstances: tableAggregateInstances
  4563. };
  4564. }
  4565. function readUncompressedBitmap(reader, width, height) {
  4566. var bitmap = [];
  4567. for (var y = 0; y < height; y++) {
  4568. var row = new Uint8Array(width);
  4569. bitmap.push(row);
  4570. for (var x = 0; x < width; x++) {
  4571. row[x] = reader.readBit();
  4572. }
  4573. reader.byteAlign();
  4574. }
  4575. return bitmap;
  4576. }
  4577. function decodeMMRBitmap(input, width, height, endOfBlock) {
  4578. var params = {
  4579. K: -1,
  4580. Columns: width,
  4581. Rows: height,
  4582. BlackIs1: true,
  4583. EndOfBlock: endOfBlock
  4584. };
  4585. var decoder = new _ccitt.CCITTFaxDecoder(input, params);
  4586. var bitmap = [];
  4587. var currentByte,
  4588. eof = false;
  4589. for (var y = 0; y < height; y++) {
  4590. var row = new Uint8Array(width);
  4591. bitmap.push(row);
  4592. var shift = -1;
  4593. for (var x = 0; x < width; x++) {
  4594. if (shift < 0) {
  4595. currentByte = decoder.readNextChar();
  4596. if (currentByte === -1) {
  4597. currentByte = 0;
  4598. eof = true;
  4599. }
  4600. shift = 7;
  4601. }
  4602. row[x] = currentByte >> shift & 1;
  4603. shift--;
  4604. }
  4605. }
  4606. if (endOfBlock && !eof) {
  4607. var lookForEOFLimit = 5;
  4608. for (var i = 0; i < lookForEOFLimit; i++) {
  4609. if (decoder.readNextChar() === -1) {
  4610. break;
  4611. }
  4612. }
  4613. }
  4614. return bitmap;
  4615. }
  4616. var Jbig2Image = /*#__PURE__*/function () {
  4617. function Jbig2Image() {
  4618. _classCallCheck(this, Jbig2Image);
  4619. }
  4620. _createClass(Jbig2Image, [{
  4621. key: "parseChunks",
  4622. value: function parseChunks(chunks) {
  4623. return parseJbig2Chunks(chunks);
  4624. }
  4625. }, {
  4626. key: "parse",
  4627. value: function parse(data) {
  4628. var _parseJbig = parseJbig2(data),
  4629. imgData = _parseJbig.imgData,
  4630. width = _parseJbig.width,
  4631. height = _parseJbig.height;
  4632. this.width = width;
  4633. this.height = height;
  4634. return imgData;
  4635. }
  4636. }]);
  4637. return Jbig2Image;
  4638. }();
  4639. exports.Jbig2Image = Jbig2Image;
  4640. /***/ }),
  4641. /* 87 */
  4642. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  4643. "use strict";
  4644. function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  4645. Object.defineProperty(exports, "__esModule", ({
  4646. value: true
  4647. }));
  4648. exports.collectActions = collectActions;
  4649. exports.encodeToXmlString = encodeToXmlString;
  4650. exports.escapePDFName = escapePDFName;
  4651. exports.getArrayLookupTableFactory = getArrayLookupTableFactory;
  4652. exports.getInheritableProperty = getInheritableProperty;
  4653. exports.getLookupTableFactory = getLookupTableFactory;
  4654. exports.isWhiteSpace = isWhiteSpace;
  4655. exports.log2 = log2;
  4656. exports.parseXFAPath = parseXFAPath;
  4657. exports.readInt8 = readInt8;
  4658. exports.readUint16 = readUint16;
  4659. exports.readUint32 = readUint32;
  4660. exports.recoverJsURL = recoverJsURL;
  4661. exports.toRomanNumerals = toRomanNumerals;
  4662. exports.validateCSSFont = validateCSSFont;
  4663. exports.XRefParseException = exports.XRefEntryException = exports.ParserEOFException = exports.MissingDataException = void 0;
  4664. var _util = __w_pdfjs_require__(1);
  4665. var _primitives = __w_pdfjs_require__(88);
  4666. function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
  4667. function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
  4668. function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
  4669. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  4670. function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  4671. function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  4672. function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  4673. function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
  4674. function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  4675. function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
  4676. function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  4677. function getLookupTableFactory(initializer) {
  4678. var lookup;
  4679. return function () {
  4680. if (initializer) {
  4681. lookup = Object.create(null);
  4682. initializer(lookup);
  4683. initializer = null;
  4684. }
  4685. return lookup;
  4686. };
  4687. }
  4688. function getArrayLookupTableFactory(initializer) {
  4689. var lookup;
  4690. return function () {
  4691. if (initializer) {
  4692. var arr = initializer();
  4693. initializer = null;
  4694. lookup = Object.create(null);
  4695. for (var i = 0, ii = arr.length; i < ii; i += 2) {
  4696. lookup[arr[i]] = arr[i + 1];
  4697. }
  4698. arr = null;
  4699. }
  4700. return lookup;
  4701. };
  4702. }
  4703. var MissingDataException = /*#__PURE__*/function (_BaseException) {
  4704. _inherits(MissingDataException, _BaseException);
  4705. var _super = _createSuper(MissingDataException);
  4706. function MissingDataException(begin, end) {
  4707. var _this;
  4708. _classCallCheck(this, MissingDataException);
  4709. _this = _super.call(this, "Missing data [".concat(begin, ", ").concat(end, ")"), "MissingDataException");
  4710. _this.begin = begin;
  4711. _this.end = end;
  4712. return _this;
  4713. }
  4714. return MissingDataException;
  4715. }(_util.BaseException);
  4716. exports.MissingDataException = MissingDataException;
  4717. var ParserEOFException = /*#__PURE__*/function (_BaseException2) {
  4718. _inherits(ParserEOFException, _BaseException2);
  4719. var _super2 = _createSuper(ParserEOFException);
  4720. function ParserEOFException(msg) {
  4721. _classCallCheck(this, ParserEOFException);
  4722. return _super2.call(this, msg, "ParserEOFException");
  4723. }
  4724. return ParserEOFException;
  4725. }(_util.BaseException);
  4726. exports.ParserEOFException = ParserEOFException;
  4727. var XRefEntryException = /*#__PURE__*/function (_BaseException3) {
  4728. _inherits(XRefEntryException, _BaseException3);
  4729. var _super3 = _createSuper(XRefEntryException);
  4730. function XRefEntryException(msg) {
  4731. _classCallCheck(this, XRefEntryException);
  4732. return _super3.call(this, msg, "XRefEntryException");
  4733. }
  4734. return XRefEntryException;
  4735. }(_util.BaseException);
  4736. exports.XRefEntryException = XRefEntryException;
  4737. var XRefParseException = /*#__PURE__*/function (_BaseException4) {
  4738. _inherits(XRefParseException, _BaseException4);
  4739. var _super4 = _createSuper(XRefParseException);
  4740. function XRefParseException(msg) {
  4741. _classCallCheck(this, XRefParseException);
  4742. return _super4.call(this, msg, "XRefParseException");
  4743. }
  4744. return XRefParseException;
  4745. }(_util.BaseException);
  4746. exports.XRefParseException = XRefParseException;
  4747. function getInheritableProperty(_ref) {
  4748. var dict = _ref.dict,
  4749. key = _ref.key,
  4750. _ref$getArray = _ref.getArray,
  4751. getArray = _ref$getArray === void 0 ? false : _ref$getArray,
  4752. _ref$stopWhenFound = _ref.stopWhenFound,
  4753. stopWhenFound = _ref$stopWhenFound === void 0 ? true : _ref$stopWhenFound;
  4754. var values;
  4755. var visited = new _primitives.RefSet();
  4756. while (dict instanceof _primitives.Dict && !(dict.objId && visited.has(dict.objId))) {
  4757. if (dict.objId) {
  4758. visited.put(dict.objId);
  4759. }
  4760. var value = getArray ? dict.getArray(key) : dict.get(key);
  4761. if (value !== undefined) {
  4762. if (stopWhenFound) {
  4763. return value;
  4764. }
  4765. if (!values) {
  4766. values = [];
  4767. }
  4768. values.push(value);
  4769. }
  4770. dict = dict.get("Parent");
  4771. }
  4772. return values;
  4773. }
  4774. var ROMAN_NUMBER_MAP = ["", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM", "", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC", "", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX"];
  4775. function toRomanNumerals(number) {
  4776. var lowerCase = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  4777. (0, _util.assert)(Number.isInteger(number) && number > 0, "The number should be a positive integer.");
  4778. var romanBuf = [];
  4779. var pos;
  4780. while (number >= 1000) {
  4781. number -= 1000;
  4782. romanBuf.push("M");
  4783. }
  4784. pos = number / 100 | 0;
  4785. number %= 100;
  4786. romanBuf.push(ROMAN_NUMBER_MAP[pos]);
  4787. pos = number / 10 | 0;
  4788. number %= 10;
  4789. romanBuf.push(ROMAN_NUMBER_MAP[10 + pos]);
  4790. romanBuf.push(ROMAN_NUMBER_MAP[20 + number]);
  4791. var romanStr = romanBuf.join("");
  4792. return lowerCase ? romanStr.toLowerCase() : romanStr;
  4793. }
  4794. function log2(x) {
  4795. if (x <= 0) {
  4796. return 0;
  4797. }
  4798. return Math.ceil(Math.log2(x));
  4799. }
  4800. function readInt8(data, offset) {
  4801. return data[offset] << 24 >> 24;
  4802. }
  4803. function readUint16(data, offset) {
  4804. return data[offset] << 8 | data[offset + 1];
  4805. }
  4806. function readUint32(data, offset) {
  4807. return (data[offset] << 24 | data[offset + 1] << 16 | data[offset + 2] << 8 | data[offset + 3]) >>> 0;
  4808. }
  4809. function isWhiteSpace(ch) {
  4810. return ch === 0x20 || ch === 0x09 || ch === 0x0d || ch === 0x0a;
  4811. }
  4812. function parseXFAPath(path) {
  4813. var positionPattern = /(.+)\[(\d+)\]$/;
  4814. return path.split(".").map(function (component) {
  4815. var m = component.match(positionPattern);
  4816. if (m) {
  4817. return {
  4818. name: m[1],
  4819. pos: parseInt(m[2], 10)
  4820. };
  4821. }
  4822. return {
  4823. name: component,
  4824. pos: 0
  4825. };
  4826. });
  4827. }
  4828. function escapePDFName(str) {
  4829. var buffer = [];
  4830. var start = 0;
  4831. for (var i = 0, ii = str.length; i < ii; i++) {
  4832. var _char = str.charCodeAt(i);
  4833. if (_char < 0x21 || _char > 0x7e || _char === 0x23 || _char === 0x28 || _char === 0x29 || _char === 0x3c || _char === 0x3e || _char === 0x5b || _char === 0x5d || _char === 0x7b || _char === 0x7d || _char === 0x2f || _char === 0x25) {
  4834. if (start < i) {
  4835. buffer.push(str.substring(start, i));
  4836. }
  4837. buffer.push("#".concat(_char.toString(16)));
  4838. start = i + 1;
  4839. }
  4840. }
  4841. if (buffer.length === 0) {
  4842. return str;
  4843. }
  4844. if (start < str.length) {
  4845. buffer.push(str.substring(start, str.length));
  4846. }
  4847. return buffer.join("");
  4848. }
  4849. function _collectJS(entry, xref, list, parents) {
  4850. if (!entry) {
  4851. return;
  4852. }
  4853. var parent = null;
  4854. if ((0, _primitives.isRef)(entry)) {
  4855. if (parents.has(entry)) {
  4856. return;
  4857. }
  4858. parent = entry;
  4859. parents.put(parent);
  4860. entry = xref.fetch(entry);
  4861. }
  4862. if (Array.isArray(entry)) {
  4863. var _iterator = _createForOfIteratorHelper(entry),
  4864. _step;
  4865. try {
  4866. for (_iterator.s(); !(_step = _iterator.n()).done;) {
  4867. var element = _step.value;
  4868. _collectJS(element, xref, list, parents);
  4869. }
  4870. } catch (err) {
  4871. _iterator.e(err);
  4872. } finally {
  4873. _iterator.f();
  4874. }
  4875. } else if (entry instanceof _primitives.Dict) {
  4876. if ((0, _primitives.isName)(entry.get("S"), "JavaScript") && entry.has("JS")) {
  4877. var js = entry.get("JS");
  4878. var code;
  4879. if ((0, _primitives.isStream)(js)) {
  4880. code = js.getString();
  4881. } else {
  4882. code = js;
  4883. }
  4884. code = (0, _util.stringToPDFString)(code);
  4885. if (code) {
  4886. list.push(code);
  4887. }
  4888. }
  4889. _collectJS(entry.getRaw("Next"), xref, list, parents);
  4890. }
  4891. if (parent) {
  4892. parents.remove(parent);
  4893. }
  4894. }
  4895. function collectActions(xref, dict, eventType) {
  4896. var actions = Object.create(null);
  4897. var additionalActionsDicts = getInheritableProperty({
  4898. dict: dict,
  4899. key: "AA",
  4900. stopWhenFound: false
  4901. });
  4902. if (additionalActionsDicts) {
  4903. for (var i = additionalActionsDicts.length - 1; i >= 0; i--) {
  4904. var additionalActions = additionalActionsDicts[i];
  4905. if (!(additionalActions instanceof _primitives.Dict)) {
  4906. continue;
  4907. }
  4908. var _iterator2 = _createForOfIteratorHelper(additionalActions.getKeys()),
  4909. _step2;
  4910. try {
  4911. for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
  4912. var key = _step2.value;
  4913. var action = eventType[key];
  4914. if (!action) {
  4915. continue;
  4916. }
  4917. var actionDict = additionalActions.getRaw(key);
  4918. var parents = new _primitives.RefSet();
  4919. var list = [];
  4920. _collectJS(actionDict, xref, list, parents);
  4921. if (list.length > 0) {
  4922. actions[action] = list;
  4923. }
  4924. }
  4925. } catch (err) {
  4926. _iterator2.e(err);
  4927. } finally {
  4928. _iterator2.f();
  4929. }
  4930. }
  4931. }
  4932. if (dict.has("A")) {
  4933. var _actionDict = dict.get("A");
  4934. var _parents = new _primitives.RefSet();
  4935. var _list = [];
  4936. _collectJS(_actionDict, xref, _list, _parents);
  4937. if (_list.length > 0) {
  4938. actions.Action = _list;
  4939. }
  4940. }
  4941. return (0, _util.objectSize)(actions) > 0 ? actions : null;
  4942. }
  4943. var XMLEntities = {
  4944. 0x3c: "&lt;",
  4945. 0x3e: "&gt;",
  4946. 0x26: "&amp;",
  4947. 0x22: "&quot;",
  4948. 0x27: "&apos;"
  4949. };
  4950. function encodeToXmlString(str) {
  4951. var buffer = [];
  4952. var start = 0;
  4953. for (var i = 0, ii = str.length; i < ii; i++) {
  4954. var _char2 = str.codePointAt(i);
  4955. if (0x20 <= _char2 && _char2 <= 0x7e) {
  4956. var entity = XMLEntities[_char2];
  4957. if (entity) {
  4958. if (start < i) {
  4959. buffer.push(str.substring(start, i));
  4960. }
  4961. buffer.push(entity);
  4962. start = i + 1;
  4963. }
  4964. } else {
  4965. if (start < i) {
  4966. buffer.push(str.substring(start, i));
  4967. }
  4968. buffer.push("&#x".concat(_char2.toString(16).toUpperCase(), ";"));
  4969. if (_char2 > 0xd7ff && (_char2 < 0xe000 || _char2 > 0xfffd)) {
  4970. i++;
  4971. }
  4972. start = i + 1;
  4973. }
  4974. }
  4975. if (buffer.length === 0) {
  4976. return str;
  4977. }
  4978. if (start < str.length) {
  4979. buffer.push(str.substring(start, str.length));
  4980. }
  4981. return buffer.join("");
  4982. }
  4983. function validateCSSFont(cssFontInfo) {
  4984. var DEFAULT_CSS_FONT_OBLIQUE = "14";
  4985. var DEFAULT_CSS_FONT_WEIGHT = "400";
  4986. var CSS_FONT_WEIGHT_VALUES = new Set(["100", "200", "300", "400", "500", "600", "700", "800", "900", "1000", "normal", "bold", "bolder", "lighter"]);
  4987. var fontFamily = cssFontInfo.fontFamily,
  4988. fontWeight = cssFontInfo.fontWeight,
  4989. italicAngle = cssFontInfo.italicAngle;
  4990. if (/^".*"$/.test(fontFamily)) {
  4991. if (/[^\\]"/.test(fontFamily.slice(1, fontFamily.length - 1))) {
  4992. (0, _util.warn)("XFA - FontFamily contains some unescaped \": ".concat(fontFamily, "."));
  4993. return false;
  4994. }
  4995. } else if (/^'.*'$/.test(fontFamily)) {
  4996. if (/[^\\]'/.test(fontFamily.slice(1, fontFamily.length - 1))) {
  4997. (0, _util.warn)("XFA - FontFamily contains some unescaped ': ".concat(fontFamily, "."));
  4998. return false;
  4999. }
  5000. } else {
  5001. var _iterator3 = _createForOfIteratorHelper(fontFamily.split(/[ \t]+/)),
  5002. _step3;
  5003. try {
  5004. for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
  5005. var ident = _step3.value;
  5006. if (/^(\d|(-(\d|-)))/.test(ident) || !/^[\w-\\]+$/.test(ident)) {
  5007. (0, _util.warn)("XFA - FontFamily contains some invalid <custom-ident>: ".concat(fontFamily, "."));
  5008. return false;
  5009. }
  5010. }
  5011. } catch (err) {
  5012. _iterator3.e(err);
  5013. } finally {
  5014. _iterator3.f();
  5015. }
  5016. }
  5017. var weight = fontWeight ? fontWeight.toString() : "";
  5018. cssFontInfo.fontWeight = CSS_FONT_WEIGHT_VALUES.has(weight) ? weight : DEFAULT_CSS_FONT_WEIGHT;
  5019. var angle = parseFloat(italicAngle);
  5020. cssFontInfo.italicAngle = isNaN(angle) || angle < -90 || angle > 90 ? DEFAULT_CSS_FONT_OBLIQUE : italicAngle.toString();
  5021. return true;
  5022. }
  5023. function recoverJsURL(str) {
  5024. var URL_OPEN_METHODS = ["app.launchURL", "window.open", "xfa.host.gotoURL"];
  5025. var regex = new RegExp("^\\s*(" + URL_OPEN_METHODS.join("|").split(".").join("\\.") + ")\\((?:'|\")([^'\"]*)(?:'|\")(?:,\\s*(\\w+)\\)|\\))", "i");
  5026. var jsUrl = regex.exec(str);
  5027. if (jsUrl && jsUrl[2]) {
  5028. var url = jsUrl[2];
  5029. var newWindow = false;
  5030. if (jsUrl[3] === "true" && jsUrl[1] === "app.launchURL") {
  5031. newWindow = true;
  5032. }
  5033. return {
  5034. url: url,
  5035. newWindow: newWindow
  5036. };
  5037. }
  5038. return null;
  5039. }
  5040. /***/ }),
  5041. /* 88 */
  5042. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  5043. "use strict";
  5044. Object.defineProperty(exports, "__esModule", ({
  5045. value: true
  5046. }));
  5047. exports.clearPrimitiveCaches = clearPrimitiveCaches;
  5048. exports.isCmd = isCmd;
  5049. exports.isDict = isDict;
  5050. exports.isName = isName;
  5051. exports.isRef = isRef;
  5052. exports.isRefsEqual = isRefsEqual;
  5053. exports.isStream = isStream;
  5054. exports.RefSetCache = exports.RefSet = exports.Ref = exports.Name = exports.EOF = exports.Dict = exports.Cmd = void 0;
  5055. var _regenerator = _interopRequireDefault(__w_pdfjs_require__(89));
  5056. var _util = __w_pdfjs_require__(1);
  5057. var _base_stream = __w_pdfjs_require__(91);
  5058. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
  5059. function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
  5060. function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
  5061. function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
  5062. function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
  5063. function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e2) { throw _e2; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e3) { didErr = true; err = _e3; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
  5064. function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
  5065. function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
  5066. function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
  5067. function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
  5068. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  5069. function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  5070. function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  5071. var EOF = Symbol("EOF");
  5072. exports.EOF = EOF;
  5073. var Name = function NameClosure() {
  5074. var nameCache = Object.create(null);
  5075. var Name = /*#__PURE__*/function () {
  5076. function Name(name) {
  5077. _classCallCheck(this, Name);
  5078. this.name = name;
  5079. }
  5080. _createClass(Name, null, [{
  5081. key: "get",
  5082. value: function get(name) {
  5083. var nameValue = nameCache[name];
  5084. return nameValue ? nameValue : nameCache[name] = new Name(name);
  5085. }
  5086. }, {
  5087. key: "_clearCache",
  5088. value: function _clearCache() {
  5089. nameCache = Object.create(null);
  5090. }
  5091. }]);
  5092. return Name;
  5093. }();
  5094. return Name;
  5095. }();
  5096. exports.Name = Name;
  5097. var Cmd = function CmdClosure() {
  5098. var cmdCache = Object.create(null);
  5099. var Cmd = /*#__PURE__*/function () {
  5100. function Cmd(cmd) {
  5101. _classCallCheck(this, Cmd);
  5102. this.cmd = cmd;
  5103. }
  5104. _createClass(Cmd, null, [{
  5105. key: "get",
  5106. value: function get(cmd) {
  5107. var cmdValue = cmdCache[cmd];
  5108. return cmdValue ? cmdValue : cmdCache[cmd] = new Cmd(cmd);
  5109. }
  5110. }, {
  5111. key: "_clearCache",
  5112. value: function _clearCache() {
  5113. cmdCache = Object.create(null);
  5114. }
  5115. }]);
  5116. return Cmd;
  5117. }();
  5118. return Cmd;
  5119. }();
  5120. exports.Cmd = Cmd;
  5121. var nonSerializable = function nonSerializableClosure() {
  5122. return nonSerializable;
  5123. };
  5124. var Dict = /*#__PURE__*/function () {
  5125. function Dict() {
  5126. var xref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
  5127. _classCallCheck(this, Dict);
  5128. this._map = Object.create(null);
  5129. this.xref = xref;
  5130. this.objId = null;
  5131. this.suppressEncryption = false;
  5132. this.__nonSerializable__ = nonSerializable;
  5133. }
  5134. _createClass(Dict, [{
  5135. key: "assignXref",
  5136. value: function assignXref(newXref) {
  5137. this.xref = newXref;
  5138. }
  5139. }, {
  5140. key: "size",
  5141. get: function get() {
  5142. return Object.keys(this._map).length;
  5143. }
  5144. }, {
  5145. key: "get",
  5146. value: function get(key1, key2, key3) {
  5147. var value = this._map[key1];
  5148. if (value === undefined && key2 !== undefined) {
  5149. value = this._map[key2];
  5150. if (value === undefined && key3 !== undefined) {
  5151. value = this._map[key3];
  5152. }
  5153. }
  5154. if (value instanceof Ref && this.xref) {
  5155. return this.xref.fetch(value, this.suppressEncryption);
  5156. }
  5157. return value;
  5158. }
  5159. }, {
  5160. key: "getAsync",
  5161. value: function () {
  5162. var _getAsync = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee(key1, key2, key3) {
  5163. var value;
  5164. return _regenerator["default"].wrap(function _callee$(_context) {
  5165. while (1) {
  5166. switch (_context.prev = _context.next) {
  5167. case 0:
  5168. value = this._map[key1];
  5169. if (value === undefined && key2 !== undefined) {
  5170. value = this._map[key2];
  5171. if (value === undefined && key3 !== undefined) {
  5172. value = this._map[key3];
  5173. }
  5174. }
  5175. if (!(value instanceof Ref && this.xref)) {
  5176. _context.next = 4;
  5177. break;
  5178. }
  5179. return _context.abrupt("return", this.xref.fetchAsync(value, this.suppressEncryption));
  5180. case 4:
  5181. return _context.abrupt("return", value);
  5182. case 5:
  5183. case "end":
  5184. return _context.stop();
  5185. }
  5186. }
  5187. }, _callee, this);
  5188. }));
  5189. function getAsync(_x, _x2, _x3) {
  5190. return _getAsync.apply(this, arguments);
  5191. }
  5192. return getAsync;
  5193. }()
  5194. }, {
  5195. key: "getArray",
  5196. value: function getArray(key1, key2, key3) {
  5197. var value = this._map[key1];
  5198. if (value === undefined && key2 !== undefined) {
  5199. value = this._map[key2];
  5200. if (value === undefined && key3 !== undefined) {
  5201. value = this._map[key3];
  5202. }
  5203. }
  5204. if (value instanceof Ref && this.xref) {
  5205. value = this.xref.fetch(value, this.suppressEncryption);
  5206. }
  5207. if (Array.isArray(value)) {
  5208. value = value.slice();
  5209. for (var i = 0, ii = value.length; i < ii; i++) {
  5210. if (value[i] instanceof Ref && this.xref) {
  5211. value[i] = this.xref.fetch(value[i], this.suppressEncryption);
  5212. }
  5213. }
  5214. }
  5215. return value;
  5216. }
  5217. }, {
  5218. key: "getRaw",
  5219. value: function getRaw(key) {
  5220. return this._map[key];
  5221. }
  5222. }, {
  5223. key: "getKeys",
  5224. value: function getKeys() {
  5225. return Object.keys(this._map);
  5226. }
  5227. }, {
  5228. key: "getRawValues",
  5229. value: function getRawValues() {
  5230. return Object.values(this._map);
  5231. }
  5232. }, {
  5233. key: "set",
  5234. value: function set(key, value) {
  5235. this._map[key] = value;
  5236. }
  5237. }, {
  5238. key: "has",
  5239. value: function has(key) {
  5240. return this._map[key] !== undefined;
  5241. }
  5242. }, {
  5243. key: "forEach",
  5244. value: function forEach(callback) {
  5245. for (var key in this._map) {
  5246. callback(key, this.get(key));
  5247. }
  5248. }
  5249. }], [{
  5250. key: "empty",
  5251. get: function get() {
  5252. var emptyDict = new Dict(null);
  5253. emptyDict.set = function (key, value) {
  5254. (0, _util.unreachable)("Should not call `set` on the empty dictionary.");
  5255. };
  5256. return (0, _util.shadow)(this, "empty", emptyDict);
  5257. }
  5258. }, {
  5259. key: "merge",
  5260. value: function merge(_ref) {
  5261. var xref = _ref.xref,
  5262. dictArray = _ref.dictArray,
  5263. _ref$mergeSubDicts = _ref.mergeSubDicts,
  5264. mergeSubDicts = _ref$mergeSubDicts === void 0 ? false : _ref$mergeSubDicts;
  5265. var mergedDict = new Dict(xref),
  5266. properties = new Map();
  5267. var _iterator = _createForOfIteratorHelper(dictArray),
  5268. _step;
  5269. try {
  5270. for (_iterator.s(); !(_step = _iterator.n()).done;) {
  5271. var dict = _step.value;
  5272. if (!(dict instanceof Dict)) {
  5273. continue;
  5274. }
  5275. for (var _i = 0, _Object$entries = Object.entries(dict._map); _i < _Object$entries.length; _i++) {
  5276. var _Object$entries$_i = _slicedToArray(_Object$entries[_i], 2),
  5277. key = _Object$entries$_i[0],
  5278. value = _Object$entries$_i[1];
  5279. var property = properties.get(key);
  5280. if (property === undefined) {
  5281. property = [];
  5282. properties.set(key, property);
  5283. } else if (!mergeSubDicts || !(value instanceof Dict)) {
  5284. continue;
  5285. }
  5286. property.push(value);
  5287. }
  5288. }
  5289. } catch (err) {
  5290. _iterator.e(err);
  5291. } finally {
  5292. _iterator.f();
  5293. }
  5294. var _iterator2 = _createForOfIteratorHelper(properties),
  5295. _step2;
  5296. try {
  5297. for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
  5298. var _step2$value = _slicedToArray(_step2.value, 2),
  5299. name = _step2$value[0],
  5300. values = _step2$value[1];
  5301. if (values.length === 1 || !(values[0] instanceof Dict)) {
  5302. mergedDict._map[name] = values[0];
  5303. continue;
  5304. }
  5305. var subDict = new Dict(xref);
  5306. var _iterator3 = _createForOfIteratorHelper(values),
  5307. _step3;
  5308. try {
  5309. for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
  5310. var _dict = _step3.value;
  5311. for (var _i2 = 0, _Object$entries2 = Object.entries(_dict._map); _i2 < _Object$entries2.length; _i2++) {
  5312. var _Object$entries2$_i = _slicedToArray(_Object$entries2[_i2], 2),
  5313. _key = _Object$entries2$_i[0],
  5314. _value = _Object$entries2$_i[1];
  5315. if (subDict._map[_key] === undefined) {
  5316. subDict._map[_key] = _value;
  5317. }
  5318. }
  5319. }
  5320. } catch (err) {
  5321. _iterator3.e(err);
  5322. } finally {
  5323. _iterator3.f();
  5324. }
  5325. if (subDict.size > 0) {
  5326. mergedDict._map[name] = subDict;
  5327. }
  5328. }
  5329. } catch (err) {
  5330. _iterator2.e(err);
  5331. } finally {
  5332. _iterator2.f();
  5333. }
  5334. properties.clear();
  5335. return mergedDict.size > 0 ? mergedDict : Dict.empty;
  5336. }
  5337. }]);
  5338. return Dict;
  5339. }();
  5340. exports.Dict = Dict;
  5341. var Ref = function RefClosure() {
  5342. var refCache = Object.create(null);
  5343. var Ref = /*#__PURE__*/function () {
  5344. function Ref(num, gen) {
  5345. _classCallCheck(this, Ref);
  5346. this.num = num;
  5347. this.gen = gen;
  5348. }
  5349. _createClass(Ref, [{
  5350. key: "toString",
  5351. value: function toString() {
  5352. if (this.gen === 0) {
  5353. return "".concat(this.num, "R");
  5354. }
  5355. return "".concat(this.num, "R").concat(this.gen);
  5356. }
  5357. }], [{
  5358. key: "get",
  5359. value: function get(num, gen) {
  5360. var key = gen === 0 ? "".concat(num, "R") : "".concat(num, "R").concat(gen);
  5361. var refValue = refCache[key];
  5362. return refValue ? refValue : refCache[key] = new Ref(num, gen);
  5363. }
  5364. }, {
  5365. key: "_clearCache",
  5366. value: function _clearCache() {
  5367. refCache = Object.create(null);
  5368. }
  5369. }]);
  5370. return Ref;
  5371. }();
  5372. return Ref;
  5373. }();
  5374. exports.Ref = Ref;
  5375. var RefSet = /*#__PURE__*/function () {
  5376. function RefSet() {
  5377. var parent = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
  5378. _classCallCheck(this, RefSet);
  5379. this._set = new Set(parent && parent._set);
  5380. }
  5381. _createClass(RefSet, [{
  5382. key: "has",
  5383. value: function has(ref) {
  5384. return this._set.has(ref.toString());
  5385. }
  5386. }, {
  5387. key: "put",
  5388. value: function put(ref) {
  5389. this._set.add(ref.toString());
  5390. }
  5391. }, {
  5392. key: "remove",
  5393. value: function remove(ref) {
  5394. this._set["delete"](ref.toString());
  5395. }
  5396. }, {
  5397. key: "forEach",
  5398. value: function forEach(callback) {
  5399. var _iterator4 = _createForOfIteratorHelper(this._set.values()),
  5400. _step4;
  5401. try {
  5402. for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
  5403. var ref = _step4.value;
  5404. callback(ref);
  5405. }
  5406. } catch (err) {
  5407. _iterator4.e(err);
  5408. } finally {
  5409. _iterator4.f();
  5410. }
  5411. }
  5412. }, {
  5413. key: "clear",
  5414. value: function clear() {
  5415. this._set.clear();
  5416. }
  5417. }]);
  5418. return RefSet;
  5419. }();
  5420. exports.RefSet = RefSet;
  5421. var RefSetCache = /*#__PURE__*/function () {
  5422. function RefSetCache() {
  5423. _classCallCheck(this, RefSetCache);
  5424. this._map = new Map();
  5425. }
  5426. _createClass(RefSetCache, [{
  5427. key: "size",
  5428. get: function get() {
  5429. return this._map.size;
  5430. }
  5431. }, {
  5432. key: "get",
  5433. value: function get(ref) {
  5434. return this._map.get(ref.toString());
  5435. }
  5436. }, {
  5437. key: "has",
  5438. value: function has(ref) {
  5439. return this._map.has(ref.toString());
  5440. }
  5441. }, {
  5442. key: "put",
  5443. value: function put(ref, obj) {
  5444. this._map.set(ref.toString(), obj);
  5445. }
  5446. }, {
  5447. key: "putAlias",
  5448. value: function putAlias(ref, aliasRef) {
  5449. this._map.set(ref.toString(), this.get(aliasRef));
  5450. }
  5451. }, {
  5452. key: "forEach",
  5453. value: function forEach(callback) {
  5454. var _iterator5 = _createForOfIteratorHelper(this._map.values()),
  5455. _step5;
  5456. try {
  5457. for (_iterator5.s(); !(_step5 = _iterator5.n()).done;) {
  5458. var value = _step5.value;
  5459. callback(value);
  5460. }
  5461. } catch (err) {
  5462. _iterator5.e(err);
  5463. } finally {
  5464. _iterator5.f();
  5465. }
  5466. }
  5467. }, {
  5468. key: "clear",
  5469. value: function clear() {
  5470. this._map.clear();
  5471. }
  5472. }]);
  5473. return RefSetCache;
  5474. }();
  5475. exports.RefSetCache = RefSetCache;
  5476. function isName(v, name) {
  5477. return v instanceof Name && (name === undefined || v.name === name);
  5478. }
  5479. function isCmd(v, cmd) {
  5480. return v instanceof Cmd && (cmd === undefined || v.cmd === cmd);
  5481. }
  5482. function isDict(v, type) {
  5483. return v instanceof Dict && (type === undefined || isName(v.get("Type"), type));
  5484. }
  5485. function isRef(v) {
  5486. return v instanceof Ref;
  5487. }
  5488. function isRefsEqual(v1, v2) {
  5489. return v1.num === v2.num && v1.gen === v2.gen;
  5490. }
  5491. function isStream(v) {
  5492. return v instanceof _base_stream.BaseStream;
  5493. }
  5494. function clearPrimitiveCaches() {
  5495. Cmd._clearCache();
  5496. Name._clearCache();
  5497. Ref._clearCache();
  5498. }
  5499. /***/ }),
  5500. /* 89 */
  5501. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  5502. "use strict";
  5503. module.exports = __w_pdfjs_require__(90);
  5504. /***/ }),
  5505. /* 90 */
  5506. /***/ ((module, __unused_webpack_exports, __w_pdfjs_require__) => {
  5507. "use strict";
  5508. /* module decorator */ module = __w_pdfjs_require__.nmd(module);
  5509. function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  5510. var runtime = function (exports) {
  5511. "use strict";
  5512. var Op = Object.prototype;
  5513. var hasOwn = Op.hasOwnProperty;
  5514. var undefined;
  5515. var $Symbol = typeof Symbol === "function" ? Symbol : {};
  5516. var iteratorSymbol = $Symbol.iterator || "@@iterator";
  5517. var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
  5518. var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";
  5519. function define(obj, key, value) {
  5520. Object.defineProperty(obj, key, {
  5521. value: value,
  5522. enumerable: true,
  5523. configurable: true,
  5524. writable: true
  5525. });
  5526. return obj[key];
  5527. }
  5528. try {
  5529. define({}, "");
  5530. } catch (err) {
  5531. define = function define(obj, key, value) {
  5532. return obj[key] = value;
  5533. };
  5534. }
  5535. function wrap(innerFn, outerFn, self, tryLocsList) {
  5536. var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
  5537. var generator = Object.create(protoGenerator.prototype);
  5538. var context = new Context(tryLocsList || []);
  5539. generator._invoke = makeInvokeMethod(innerFn, self, context);
  5540. return generator;
  5541. }
  5542. exports.wrap = wrap;
  5543. function tryCatch(fn, obj, arg) {
  5544. try {
  5545. return {
  5546. type: "normal",
  5547. arg: fn.call(obj, arg)
  5548. };
  5549. } catch (err) {
  5550. return {
  5551. type: "throw",
  5552. arg: err
  5553. };
  5554. }
  5555. }
  5556. var GenStateSuspendedStart = "suspendedStart";
  5557. var GenStateSuspendedYield = "suspendedYield";
  5558. var GenStateExecuting = "executing";
  5559. var GenStateCompleted = "completed";
  5560. var ContinueSentinel = {};
  5561. function Generator() {}
  5562. function GeneratorFunction() {}
  5563. function GeneratorFunctionPrototype() {}
  5564. var IteratorPrototype = {};
  5565. define(IteratorPrototype, iteratorSymbol, function () {
  5566. return this;
  5567. });
  5568. var getProto = Object.getPrototypeOf;
  5569. var NativeIteratorPrototype = getProto && getProto(getProto(values([])));
  5570. if (NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
  5571. IteratorPrototype = NativeIteratorPrototype;
  5572. }
  5573. var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype);
  5574. GeneratorFunction.prototype = GeneratorFunctionPrototype;
  5575. define(Gp, "constructor", GeneratorFunctionPrototype);
  5576. define(GeneratorFunctionPrototype, "constructor", GeneratorFunction);
  5577. GeneratorFunction.displayName = define(GeneratorFunctionPrototype, toStringTagSymbol, "GeneratorFunction");
  5578. function defineIteratorMethods(prototype) {
  5579. ["next", "throw", "return"].forEach(function (method) {
  5580. define(prototype, method, function (arg) {
  5581. return this._invoke(method, arg);
  5582. });
  5583. });
  5584. }
  5585. exports.isGeneratorFunction = function (genFun) {
  5586. var ctor = typeof genFun === "function" && genFun.constructor;
  5587. return ctor ? ctor === GeneratorFunction || (ctor.displayName || ctor.name) === "GeneratorFunction" : false;
  5588. };
  5589. exports.mark = function (genFun) {
  5590. if (Object.setPrototypeOf) {
  5591. Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
  5592. } else {
  5593. genFun.__proto__ = GeneratorFunctionPrototype;
  5594. define(genFun, toStringTagSymbol, "GeneratorFunction");
  5595. }
  5596. genFun.prototype = Object.create(Gp);
  5597. return genFun;
  5598. };
  5599. exports.awrap = function (arg) {
  5600. return {
  5601. __await: arg
  5602. };
  5603. };
  5604. function AsyncIterator(generator, PromiseImpl) {
  5605. function invoke(method, arg, resolve, reject) {
  5606. var record = tryCatch(generator[method], generator, arg);
  5607. if (record.type === "throw") {
  5608. reject(record.arg);
  5609. } else {
  5610. var result = record.arg;
  5611. var value = result.value;
  5612. if (value && _typeof(value) === "object" && hasOwn.call(value, "__await")) {
  5613. return PromiseImpl.resolve(value.__await).then(function (value) {
  5614. invoke("next", value, resolve, reject);
  5615. }, function (err) {
  5616. invoke("throw", err, resolve, reject);
  5617. });
  5618. }
  5619. return PromiseImpl.resolve(value).then(function (unwrapped) {
  5620. result.value = unwrapped;
  5621. resolve(result);
  5622. }, function (error) {
  5623. return invoke("throw", error, resolve, reject);
  5624. });
  5625. }
  5626. }
  5627. var previousPromise;
  5628. function enqueue(method, arg) {
  5629. function callInvokeWithMethodAndArg() {
  5630. return new PromiseImpl(function (resolve, reject) {
  5631. invoke(method, arg, resolve, reject);
  5632. });
  5633. }
  5634. return previousPromise = previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
  5635. }
  5636. this._invoke = enqueue;
  5637. }
  5638. defineIteratorMethods(AsyncIterator.prototype);
  5639. define(AsyncIterator.prototype, asyncIteratorSymbol, function () {
  5640. return this;
  5641. });
  5642. exports.AsyncIterator = AsyncIterator;
  5643. exports.async = function (innerFn, outerFn, self, tryLocsList, PromiseImpl) {
  5644. if (PromiseImpl === void 0) PromiseImpl = Promise;
  5645. var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList), PromiseImpl);
  5646. return exports.isGeneratorFunction(outerFn) ? iter : iter.next().then(function (result) {
  5647. return result.done ? result.value : iter.next();
  5648. });
  5649. };
  5650. function makeInvokeMethod(innerFn, self, context) {
  5651. var state = GenStateSuspendedStart;
  5652. return function invoke(method, arg) {
  5653. if (state === GenStateExecuting) {
  5654. throw new Error("Generator is already running");
  5655. }
  5656. if (state === GenStateCompleted) {
  5657. if (method === "throw") {
  5658. throw arg;
  5659. }
  5660. return doneResult();
  5661. }
  5662. context.method = method;
  5663. context.arg = arg;
  5664. while (true) {
  5665. var delegate = context.delegate;
  5666. if (delegate) {
  5667. var delegateResult = maybeInvokeDelegate(delegate, context);
  5668. if (delegateResult) {
  5669. if (delegateResult === ContinueSentinel) continue;
  5670. return delegateResult;
  5671. }
  5672. }
  5673. if (context.method === "next") {
  5674. context.sent = context._sent = context.arg;
  5675. } else if (context.method === "throw") {
  5676. if (state === GenStateSuspendedStart) {
  5677. state = GenStateCompleted;
  5678. throw context.arg;
  5679. }
  5680. context.dispatchException(context.arg);
  5681. } else if (context.method === "return") {
  5682. context.abrupt("return", context.arg);
  5683. }
  5684. state = GenStateExecuting;
  5685. var record = tryCatch(innerFn, self, context);
  5686. if (record.type === "normal") {
  5687. state = context.done ? GenStateCompleted : GenStateSuspendedYield;
  5688. if (record.arg === ContinueSentinel) {
  5689. continue;
  5690. }
  5691. return {
  5692. value: record.arg,
  5693. done: context.done
  5694. };
  5695. } else if (record.type === "throw") {
  5696. state = GenStateCompleted;
  5697. context.method = "throw";
  5698. context.arg = record.arg;
  5699. }
  5700. }
  5701. };
  5702. }
  5703. function maybeInvokeDelegate(delegate, context) {
  5704. var method = delegate.iterator[context.method];
  5705. if (method === undefined) {
  5706. context.delegate = null;
  5707. if (context.method === "throw") {
  5708. if (delegate.iterator["return"]) {
  5709. context.method = "return";
  5710. context.arg = undefined;
  5711. maybeInvokeDelegate(delegate, context);
  5712. if (context.method === "throw") {
  5713. return ContinueSentinel;
  5714. }
  5715. }
  5716. context.method = "throw";
  5717. context.arg = new TypeError("The iterator does not provide a 'throw' method");
  5718. }
  5719. return ContinueSentinel;
  5720. }
  5721. var record = tryCatch(method, delegate.iterator, context.arg);
  5722. if (record.type === "throw") {
  5723. context.method = "throw";
  5724. context.arg = record.arg;
  5725. context.delegate = null;
  5726. return ContinueSentinel;
  5727. }
  5728. var info = record.arg;
  5729. if (!info) {
  5730. context.method = "throw";
  5731. context.arg = new TypeError("iterator result is not an object");
  5732. context.delegate = null;
  5733. return ContinueSentinel;
  5734. }
  5735. if (info.done) {
  5736. context[delegate.resultName] = info.value;
  5737. context.next = delegate.nextLoc;
  5738. if (context.method !== "return") {
  5739. context.method = "next";
  5740. context.arg = undefined;
  5741. }
  5742. } else {
  5743. return info;
  5744. }
  5745. context.delegate = null;
  5746. return ContinueSentinel;
  5747. }
  5748. defineIteratorMethods(Gp);
  5749. define(Gp, toStringTagSymbol, "Generator");
  5750. define(Gp, iteratorSymbol, function () {
  5751. return this;
  5752. });
  5753. define(Gp, "toString", function () {
  5754. return "[object Generator]";
  5755. });
  5756. function pushTryEntry(locs) {
  5757. var entry = {
  5758. tryLoc: locs[0]
  5759. };
  5760. if (1 in locs) {
  5761. entry.catchLoc = locs[1];
  5762. }
  5763. if (2 in locs) {
  5764. entry.finallyLoc = locs[2];
  5765. entry.afterLoc = locs[3];
  5766. }
  5767. this.tryEntries.push(entry);
  5768. }
  5769. function resetTryEntry(entry) {
  5770. var record = entry.completion || {};
  5771. record.type = "normal";
  5772. delete record.arg;
  5773. entry.completion = record;
  5774. }
  5775. function Context(tryLocsList) {
  5776. this.tryEntries = [{
  5777. tryLoc: "root"
  5778. }];
  5779. tryLocsList.forEach(pushTryEntry, this);
  5780. this.reset(true);
  5781. }
  5782. exports.keys = function (object) {
  5783. var keys = [];
  5784. for (var key in object) {
  5785. keys.push(key);
  5786. }
  5787. keys.reverse();
  5788. return function next() {
  5789. while (keys.length) {
  5790. var key = keys.pop();
  5791. if (key in object) {
  5792. next.value = key;
  5793. next.done = false;
  5794. return next;
  5795. }
  5796. }
  5797. next.done = true;
  5798. return next;
  5799. };
  5800. };
  5801. function values(iterable) {
  5802. if (iterable) {
  5803. var iteratorMethod = iterable[iteratorSymbol];
  5804. if (iteratorMethod) {
  5805. return iteratorMethod.call(iterable);
  5806. }
  5807. if (typeof iterable.next === "function") {
  5808. return iterable;
  5809. }
  5810. if (!isNaN(iterable.length)) {
  5811. var i = -1,
  5812. next = function next() {
  5813. while (++i < iterable.length) {
  5814. if (hasOwn.call(iterable, i)) {
  5815. next.value = iterable[i];
  5816. next.done = false;
  5817. return next;
  5818. }
  5819. }
  5820. next.value = undefined;
  5821. next.done = true;
  5822. return next;
  5823. };
  5824. return next.next = next;
  5825. }
  5826. }
  5827. return {
  5828. next: doneResult
  5829. };
  5830. }
  5831. exports.values = values;
  5832. function doneResult() {
  5833. return {
  5834. value: undefined,
  5835. done: true
  5836. };
  5837. }
  5838. Context.prototype = {
  5839. constructor: Context,
  5840. reset: function reset(skipTempReset) {
  5841. this.prev = 0;
  5842. this.next = 0;
  5843. this.sent = this._sent = undefined;
  5844. this.done = false;
  5845. this.delegate = null;
  5846. this.method = "next";
  5847. this.arg = undefined;
  5848. this.tryEntries.forEach(resetTryEntry);
  5849. if (!skipTempReset) {
  5850. for (var name in this) {
  5851. if (name.charAt(0) === "t" && hasOwn.call(this, name) && !isNaN(+name.slice(1))) {
  5852. this[name] = undefined;
  5853. }
  5854. }
  5855. }
  5856. },
  5857. stop: function stop() {
  5858. this.done = true;
  5859. var rootEntry = this.tryEntries[0];
  5860. var rootRecord = rootEntry.completion;
  5861. if (rootRecord.type === "throw") {
  5862. throw rootRecord.arg;
  5863. }
  5864. return this.rval;
  5865. },
  5866. dispatchException: function dispatchException(exception) {
  5867. if (this.done) {
  5868. throw exception;
  5869. }
  5870. var context = this;
  5871. function handle(loc, caught) {
  5872. record.type = "throw";
  5873. record.arg = exception;
  5874. context.next = loc;
  5875. if (caught) {
  5876. context.method = "next";
  5877. context.arg = undefined;
  5878. }
  5879. return !!caught;
  5880. }
  5881. for (var i = this.tryEntries.length - 1; i >= 0; --i) {
  5882. var entry = this.tryEntries[i];
  5883. var record = entry.completion;
  5884. if (entry.tryLoc === "root") {
  5885. return handle("end");
  5886. }
  5887. if (entry.tryLoc <= this.prev) {
  5888. var hasCatch = hasOwn.call(entry, "catchLoc");
  5889. var hasFinally = hasOwn.call(entry, "finallyLoc");
  5890. if (hasCatch && hasFinally) {
  5891. if (this.prev < entry.catchLoc) {
  5892. return handle(entry.catchLoc, true);
  5893. } else if (this.prev < entry.finallyLoc) {
  5894. return handle(entry.finallyLoc);
  5895. }
  5896. } else if (hasCatch) {
  5897. if (this.prev < entry.catchLoc) {
  5898. return handle(entry.catchLoc, true);
  5899. }
  5900. } else if (hasFinally) {
  5901. if (this.prev < entry.finallyLoc) {
  5902. return handle(entry.finallyLoc);
  5903. }
  5904. } else {
  5905. throw new Error("try statement without catch or finally");
  5906. }
  5907. }
  5908. }
  5909. },
  5910. abrupt: function abrupt(type, arg) {
  5911. for (var i = this.tryEntries.length - 1; i >= 0; --i) {
  5912. var entry = this.tryEntries[i];
  5913. if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) {
  5914. var finallyEntry = entry;
  5915. break;
  5916. }
  5917. }
  5918. if (finallyEntry && (type === "break" || type === "continue") && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc) {
  5919. finallyEntry = null;
  5920. }
  5921. var record = finallyEntry ? finallyEntry.completion : {};
  5922. record.type = type;
  5923. record.arg = arg;
  5924. if (finallyEntry) {
  5925. this.method = "next";
  5926. this.next = finallyEntry.finallyLoc;
  5927. return ContinueSentinel;
  5928. }
  5929. return this.complete(record);
  5930. },
  5931. complete: function complete(record, afterLoc) {
  5932. if (record.type === "throw") {
  5933. throw record.arg;
  5934. }
  5935. if (record.type === "break" || record.type === "continue") {
  5936. this.next = record.arg;
  5937. } else if (record.type === "return") {
  5938. this.rval = this.arg = record.arg;
  5939. this.method = "return";
  5940. this.next = "end";
  5941. } else if (record.type === "normal" && afterLoc) {
  5942. this.next = afterLoc;
  5943. }
  5944. return ContinueSentinel;
  5945. },
  5946. finish: function finish(finallyLoc) {
  5947. for (var i = this.tryEntries.length - 1; i >= 0; --i) {
  5948. var entry = this.tryEntries[i];
  5949. if (entry.finallyLoc === finallyLoc) {
  5950. this.complete(entry.completion, entry.afterLoc);
  5951. resetTryEntry(entry);
  5952. return ContinueSentinel;
  5953. }
  5954. }
  5955. },
  5956. "catch": function _catch(tryLoc) {
  5957. for (var i = this.tryEntries.length - 1; i >= 0; --i) {
  5958. var entry = this.tryEntries[i];
  5959. if (entry.tryLoc === tryLoc) {
  5960. var record = entry.completion;
  5961. if (record.type === "throw") {
  5962. var thrown = record.arg;
  5963. resetTryEntry(entry);
  5964. }
  5965. return thrown;
  5966. }
  5967. }
  5968. throw new Error("illegal catch attempt");
  5969. },
  5970. delegateYield: function delegateYield(iterable, resultName, nextLoc) {
  5971. this.delegate = {
  5972. iterator: values(iterable),
  5973. resultName: resultName,
  5974. nextLoc: nextLoc
  5975. };
  5976. if (this.method === "next") {
  5977. this.arg = undefined;
  5978. }
  5979. return ContinueSentinel;
  5980. }
  5981. };
  5982. return exports;
  5983. }(( false ? 0 : _typeof(module)) === "object" ? module.exports : {});
  5984. try {
  5985. regeneratorRuntime = runtime;
  5986. } catch (accidentalStrictMode) {
  5987. if ((typeof globalThis === "undefined" ? "undefined" : _typeof(globalThis)) === "object") {
  5988. globalThis.regeneratorRuntime = runtime;
  5989. } else {
  5990. Function("r", "regeneratorRuntime = r")(runtime);
  5991. }
  5992. }
  5993. /***/ }),
  5994. /* 91 */
  5995. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  5996. "use strict";
  5997. Object.defineProperty(exports, "__esModule", ({
  5998. value: true
  5999. }));
  6000. exports.BaseStream = void 0;
  6001. var _util = __w_pdfjs_require__(1);
  6002. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  6003. function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  6004. function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  6005. var BaseStream = /*#__PURE__*/function () {
  6006. function BaseStream() {
  6007. _classCallCheck(this, BaseStream);
  6008. if (this.constructor === BaseStream) {
  6009. (0, _util.unreachable)("Cannot initialize BaseStream.");
  6010. }
  6011. }
  6012. _createClass(BaseStream, [{
  6013. key: "length",
  6014. get: function get() {
  6015. (0, _util.unreachable)("Abstract getter `length` accessed");
  6016. }
  6017. }, {
  6018. key: "isEmpty",
  6019. get: function get() {
  6020. (0, _util.unreachable)("Abstract getter `isEmpty` accessed");
  6021. }
  6022. }, {
  6023. key: "isDataLoaded",
  6024. get: function get() {
  6025. return (0, _util.shadow)(this, "isDataLoaded", true);
  6026. }
  6027. }, {
  6028. key: "getByte",
  6029. value: function getByte() {
  6030. (0, _util.unreachable)("Abstract method `getByte` called");
  6031. }
  6032. }, {
  6033. key: "getBytes",
  6034. value: function getBytes(length) {
  6035. var forceClamped = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  6036. (0, _util.unreachable)("Abstract method `getBytes` called");
  6037. }
  6038. }, {
  6039. key: "peekByte",
  6040. value: function peekByte() {
  6041. var peekedByte = this.getByte();
  6042. if (peekedByte !== -1) {
  6043. this.pos--;
  6044. }
  6045. return peekedByte;
  6046. }
  6047. }, {
  6048. key: "peekBytes",
  6049. value: function peekBytes(length) {
  6050. var forceClamped = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  6051. var bytes = this.getBytes(length, forceClamped);
  6052. this.pos -= bytes.length;
  6053. return bytes;
  6054. }
  6055. }, {
  6056. key: "getUint16",
  6057. value: function getUint16() {
  6058. var b0 = this.getByte();
  6059. var b1 = this.getByte();
  6060. if (b0 === -1 || b1 === -1) {
  6061. return -1;
  6062. }
  6063. return (b0 << 8) + b1;
  6064. }
  6065. }, {
  6066. key: "getInt32",
  6067. value: function getInt32() {
  6068. var b0 = this.getByte();
  6069. var b1 = this.getByte();
  6070. var b2 = this.getByte();
  6071. var b3 = this.getByte();
  6072. return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3;
  6073. }
  6074. }, {
  6075. key: "getByteRange",
  6076. value: function getByteRange(begin, end) {
  6077. (0, _util.unreachable)("Abstract method `getByteRange` called");
  6078. }
  6079. }, {
  6080. key: "getString",
  6081. value: function getString(length) {
  6082. return (0, _util.bytesToString)(this.getBytes(length, false));
  6083. }
  6084. }, {
  6085. key: "skip",
  6086. value: function skip(n) {
  6087. this.pos += n || 1;
  6088. }
  6089. }, {
  6090. key: "reset",
  6091. value: function reset() {
  6092. (0, _util.unreachable)("Abstract method `reset` called");
  6093. }
  6094. }, {
  6095. key: "moveStart",
  6096. value: function moveStart() {
  6097. (0, _util.unreachable)("Abstract method `moveStart` called");
  6098. }
  6099. }, {
  6100. key: "makeSubStream",
  6101. value: function makeSubStream(start, length) {
  6102. var dict = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
  6103. (0, _util.unreachable)("Abstract method `makeSubStream` called");
  6104. }
  6105. }, {
  6106. key: "getBaseStreams",
  6107. value: function getBaseStreams() {
  6108. return null;
  6109. }
  6110. }]);
  6111. return BaseStream;
  6112. }();
  6113. exports.BaseStream = BaseStream;
  6114. /***/ }),
  6115. /* 92 */
  6116. /***/ ((__unused_webpack_module, exports) => {
  6117. "use strict";
  6118. Object.defineProperty(exports, "__esModule", ({
  6119. value: true
  6120. }));
  6121. exports.ArithmeticDecoder = void 0;
  6122. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  6123. function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  6124. function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  6125. var QeTable = [{
  6126. qe: 0x5601,
  6127. nmps: 1,
  6128. nlps: 1,
  6129. switchFlag: 1
  6130. }, {
  6131. qe: 0x3401,
  6132. nmps: 2,
  6133. nlps: 6,
  6134. switchFlag: 0
  6135. }, {
  6136. qe: 0x1801,
  6137. nmps: 3,
  6138. nlps: 9,
  6139. switchFlag: 0
  6140. }, {
  6141. qe: 0x0ac1,
  6142. nmps: 4,
  6143. nlps: 12,
  6144. switchFlag: 0
  6145. }, {
  6146. qe: 0x0521,
  6147. nmps: 5,
  6148. nlps: 29,
  6149. switchFlag: 0
  6150. }, {
  6151. qe: 0x0221,
  6152. nmps: 38,
  6153. nlps: 33,
  6154. switchFlag: 0
  6155. }, {
  6156. qe: 0x5601,
  6157. nmps: 7,
  6158. nlps: 6,
  6159. switchFlag: 1
  6160. }, {
  6161. qe: 0x5401,
  6162. nmps: 8,
  6163. nlps: 14,
  6164. switchFlag: 0
  6165. }, {
  6166. qe: 0x4801,
  6167. nmps: 9,
  6168. nlps: 14,
  6169. switchFlag: 0
  6170. }, {
  6171. qe: 0x3801,
  6172. nmps: 10,
  6173. nlps: 14,
  6174. switchFlag: 0
  6175. }, {
  6176. qe: 0x3001,
  6177. nmps: 11,
  6178. nlps: 17,
  6179. switchFlag: 0
  6180. }, {
  6181. qe: 0x2401,
  6182. nmps: 12,
  6183. nlps: 18,
  6184. switchFlag: 0
  6185. }, {
  6186. qe: 0x1c01,
  6187. nmps: 13,
  6188. nlps: 20,
  6189. switchFlag: 0
  6190. }, {
  6191. qe: 0x1601,
  6192. nmps: 29,
  6193. nlps: 21,
  6194. switchFlag: 0
  6195. }, {
  6196. qe: 0x5601,
  6197. nmps: 15,
  6198. nlps: 14,
  6199. switchFlag: 1
  6200. }, {
  6201. qe: 0x5401,
  6202. nmps: 16,
  6203. nlps: 14,
  6204. switchFlag: 0
  6205. }, {
  6206. qe: 0x5101,
  6207. nmps: 17,
  6208. nlps: 15,
  6209. switchFlag: 0
  6210. }, {
  6211. qe: 0x4801,
  6212. nmps: 18,
  6213. nlps: 16,
  6214. switchFlag: 0
  6215. }, {
  6216. qe: 0x3801,
  6217. nmps: 19,
  6218. nlps: 17,
  6219. switchFlag: 0
  6220. }, {
  6221. qe: 0x3401,
  6222. nmps: 20,
  6223. nlps: 18,
  6224. switchFlag: 0
  6225. }, {
  6226. qe: 0x3001,
  6227. nmps: 21,
  6228. nlps: 19,
  6229. switchFlag: 0
  6230. }, {
  6231. qe: 0x2801,
  6232. nmps: 22,
  6233. nlps: 19,
  6234. switchFlag: 0
  6235. }, {
  6236. qe: 0x2401,
  6237. nmps: 23,
  6238. nlps: 20,
  6239. switchFlag: 0
  6240. }, {
  6241. qe: 0x2201,
  6242. nmps: 24,
  6243. nlps: 21,
  6244. switchFlag: 0
  6245. }, {
  6246. qe: 0x1c01,
  6247. nmps: 25,
  6248. nlps: 22,
  6249. switchFlag: 0
  6250. }, {
  6251. qe: 0x1801,
  6252. nmps: 26,
  6253. nlps: 23,
  6254. switchFlag: 0
  6255. }, {
  6256. qe: 0x1601,
  6257. nmps: 27,
  6258. nlps: 24,
  6259. switchFlag: 0
  6260. }, {
  6261. qe: 0x1401,
  6262. nmps: 28,
  6263. nlps: 25,
  6264. switchFlag: 0
  6265. }, {
  6266. qe: 0x1201,
  6267. nmps: 29,
  6268. nlps: 26,
  6269. switchFlag: 0
  6270. }, {
  6271. qe: 0x1101,
  6272. nmps: 30,
  6273. nlps: 27,
  6274. switchFlag: 0
  6275. }, {
  6276. qe: 0x0ac1,
  6277. nmps: 31,
  6278. nlps: 28,
  6279. switchFlag: 0
  6280. }, {
  6281. qe: 0x09c1,
  6282. nmps: 32,
  6283. nlps: 29,
  6284. switchFlag: 0
  6285. }, {
  6286. qe: 0x08a1,
  6287. nmps: 33,
  6288. nlps: 30,
  6289. switchFlag: 0
  6290. }, {
  6291. qe: 0x0521,
  6292. nmps: 34,
  6293. nlps: 31,
  6294. switchFlag: 0
  6295. }, {
  6296. qe: 0x0441,
  6297. nmps: 35,
  6298. nlps: 32,
  6299. switchFlag: 0
  6300. }, {
  6301. qe: 0x02a1,
  6302. nmps: 36,
  6303. nlps: 33,
  6304. switchFlag: 0
  6305. }, {
  6306. qe: 0x0221,
  6307. nmps: 37,
  6308. nlps: 34,
  6309. switchFlag: 0
  6310. }, {
  6311. qe: 0x0141,
  6312. nmps: 38,
  6313. nlps: 35,
  6314. switchFlag: 0
  6315. }, {
  6316. qe: 0x0111,
  6317. nmps: 39,
  6318. nlps: 36,
  6319. switchFlag: 0
  6320. }, {
  6321. qe: 0x0085,
  6322. nmps: 40,
  6323. nlps: 37,
  6324. switchFlag: 0
  6325. }, {
  6326. qe: 0x0049,
  6327. nmps: 41,
  6328. nlps: 38,
  6329. switchFlag: 0
  6330. }, {
  6331. qe: 0x0025,
  6332. nmps: 42,
  6333. nlps: 39,
  6334. switchFlag: 0
  6335. }, {
  6336. qe: 0x0015,
  6337. nmps: 43,
  6338. nlps: 40,
  6339. switchFlag: 0
  6340. }, {
  6341. qe: 0x0009,
  6342. nmps: 44,
  6343. nlps: 41,
  6344. switchFlag: 0
  6345. }, {
  6346. qe: 0x0005,
  6347. nmps: 45,
  6348. nlps: 42,
  6349. switchFlag: 0
  6350. }, {
  6351. qe: 0x0001,
  6352. nmps: 45,
  6353. nlps: 43,
  6354. switchFlag: 0
  6355. }, {
  6356. qe: 0x5601,
  6357. nmps: 46,
  6358. nlps: 46,
  6359. switchFlag: 0
  6360. }];
  6361. var ArithmeticDecoder = /*#__PURE__*/function () {
  6362. function ArithmeticDecoder(data, start, end) {
  6363. _classCallCheck(this, ArithmeticDecoder);
  6364. this.data = data;
  6365. this.bp = start;
  6366. this.dataEnd = end;
  6367. this.chigh = data[start];
  6368. this.clow = 0;
  6369. this.byteIn();
  6370. this.chigh = this.chigh << 7 & 0xffff | this.clow >> 9 & 0x7f;
  6371. this.clow = this.clow << 7 & 0xffff;
  6372. this.ct -= 7;
  6373. this.a = 0x8000;
  6374. }
  6375. _createClass(ArithmeticDecoder, [{
  6376. key: "byteIn",
  6377. value: function byteIn() {
  6378. var data = this.data;
  6379. var bp = this.bp;
  6380. if (data[bp] === 0xff) {
  6381. if (data[bp + 1] > 0x8f) {
  6382. this.clow += 0xff00;
  6383. this.ct = 8;
  6384. } else {
  6385. bp++;
  6386. this.clow += data[bp] << 9;
  6387. this.ct = 7;
  6388. this.bp = bp;
  6389. }
  6390. } else {
  6391. bp++;
  6392. this.clow += bp < this.dataEnd ? data[bp] << 8 : 0xff00;
  6393. this.ct = 8;
  6394. this.bp = bp;
  6395. }
  6396. if (this.clow > 0xffff) {
  6397. this.chigh += this.clow >> 16;
  6398. this.clow &= 0xffff;
  6399. }
  6400. }
  6401. }, {
  6402. key: "readBit",
  6403. value: function readBit(contexts, pos) {
  6404. var cx_index = contexts[pos] >> 1,
  6405. cx_mps = contexts[pos] & 1;
  6406. var qeTableIcx = QeTable[cx_index];
  6407. var qeIcx = qeTableIcx.qe;
  6408. var d;
  6409. var a = this.a - qeIcx;
  6410. if (this.chigh < qeIcx) {
  6411. if (a < qeIcx) {
  6412. a = qeIcx;
  6413. d = cx_mps;
  6414. cx_index = qeTableIcx.nmps;
  6415. } else {
  6416. a = qeIcx;
  6417. d = 1 ^ cx_mps;
  6418. if (qeTableIcx.switchFlag === 1) {
  6419. cx_mps = d;
  6420. }
  6421. cx_index = qeTableIcx.nlps;
  6422. }
  6423. } else {
  6424. this.chigh -= qeIcx;
  6425. if ((a & 0x8000) !== 0) {
  6426. this.a = a;
  6427. return cx_mps;
  6428. }
  6429. if (a < qeIcx) {
  6430. d = 1 ^ cx_mps;
  6431. if (qeTableIcx.switchFlag === 1) {
  6432. cx_mps = d;
  6433. }
  6434. cx_index = qeTableIcx.nlps;
  6435. } else {
  6436. d = cx_mps;
  6437. cx_index = qeTableIcx.nmps;
  6438. }
  6439. }
  6440. do {
  6441. if (this.ct === 0) {
  6442. this.byteIn();
  6443. }
  6444. a <<= 1;
  6445. this.chigh = this.chigh << 1 & 0xffff | this.clow >> 15 & 1;
  6446. this.clow = this.clow << 1 & 0xffff;
  6447. this.ct--;
  6448. } while ((a & 0x8000) === 0);
  6449. this.a = a;
  6450. contexts[pos] = cx_index << 1 | cx_mps;
  6451. return d;
  6452. }
  6453. }]);
  6454. return ArithmeticDecoder;
  6455. }();
  6456. exports.ArithmeticDecoder = ArithmeticDecoder;
  6457. /***/ }),
  6458. /* 93 */
  6459. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  6460. "use strict";
  6461. Object.defineProperty(exports, "__esModule", ({
  6462. value: true
  6463. }));
  6464. exports.CCITTFaxDecoder = void 0;
  6465. var _util = __w_pdfjs_require__(1);
  6466. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  6467. function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  6468. function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  6469. var ccittEOL = -2;
  6470. var ccittEOF = -1;
  6471. var twoDimPass = 0;
  6472. var twoDimHoriz = 1;
  6473. var twoDimVert0 = 2;
  6474. var twoDimVertR1 = 3;
  6475. var twoDimVertL1 = 4;
  6476. var twoDimVertR2 = 5;
  6477. var twoDimVertL2 = 6;
  6478. var twoDimVertR3 = 7;
  6479. var twoDimVertL3 = 8;
  6480. var twoDimTable = [[-1, -1], [-1, -1], [7, twoDimVertL3], [7, twoDimVertR3], [6, twoDimVertL2], [6, twoDimVertL2], [6, twoDimVertR2], [6, twoDimVertR2], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [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, twoDimHoriz], [3, twoDimHoriz], [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, twoDimVertL1], [3, twoDimVertL1], [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], [3, twoDimVertR1], [3, twoDimVertR1], [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], [1, twoDimVert0], [1, twoDimVert0]];
  6481. var whiteTable1 = [[-1, -1], [12, ccittEOL], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [11, 1792], [11, 1792], [12, 1984], [12, 2048], [12, 2112], [12, 2176], [12, 2240], [12, 2304], [11, 1856], [11, 1856], [11, 1920], [11, 1920], [12, 2368], [12, 2432], [12, 2496], [12, 2560]];
  6482. var whiteTable2 = [[-1, -1], [-1, -1], [-1, -1], [-1, -1], [8, 29], [8, 29], [8, 30], [8, 30], [8, 45], [8, 45], [8, 46], [8, 46], [7, 22], [7, 22], [7, 22], [7, 22], [7, 23], [7, 23], [7, 23], [7, 23], [8, 47], [8, 47], [8, 48], [8, 48], [6, 13], [6, 13], [6, 13], [6, 13], [6, 13], [6, 13], [6, 13], [6, 13], [7, 20], [7, 20], [7, 20], [7, 20], [8, 33], [8, 33], [8, 34], [8, 34], [8, 35], [8, 35], [8, 36], [8, 36], [8, 37], [8, 37], [8, 38], [8, 38], [7, 19], [7, 19], [7, 19], [7, 19], [8, 31], [8, 31], [8, 32], [8, 32], [6, 1], [6, 1], [6, 1], [6, 1], [6, 1], [6, 1], [6, 1], [6, 1], [6, 12], [6, 12], [6, 12], [6, 12], [6, 12], [6, 12], [6, 12], [6, 12], [8, 53], [8, 53], [8, 54], [8, 54], [7, 26], [7, 26], [7, 26], [7, 26], [8, 39], [8, 39], [8, 40], [8, 40], [8, 41], [8, 41], [8, 42], [8, 42], [8, 43], [8, 43], [8, 44], [8, 44], [7, 21], [7, 21], [7, 21], [7, 21], [7, 28], [7, 28], [7, 28], [7, 28], [8, 61], [8, 61], [8, 62], [8, 62], [8, 63], [8, 63], [8, 0], [8, 0], [8, 320], [8, 320], [8, 384], [8, 384], [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, 10], [5, 10], [5, 10], [5, 10], [5, 11], [5, 11], [5, 11], [5, 11], [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], [8, 59], [8, 59], [8, 60], [8, 60], [9, 1472], [9, 1536], [9, 1600], [9, 1728], [7, 18], [7, 18], [7, 18], [7, 18], [7, 24], [7, 24], [7, 24], [7, 24], [8, 49], [8, 49], [8, 50], [8, 50], [8, 51], [8, 51], [8, 52], [8, 52], [7, 25], [7, 25], [7, 25], [7, 25], [8, 55], [8, 55], [8, 56], [8, 56], [8, 57], [8, 57], [8, 58], [8, 58], [6, 192], [6, 192], [6, 192], [6, 192], [6, 192], [6, 192], [6, 192], [6, 192], [6, 1664], [6, 1664], [6, 1664], [6, 1664], [6, 1664], [6, 1664], [6, 1664], [6, 1664], [8, 448], [8, 448], [8, 512], [8, 512], [9, 704], [9, 768], [8, 640], [8, 640], [8, 576], [8, 576], [9, 832], [9, 896], [9, 960], [9, 1024], [9, 1088], [9, 1152], [9, 1216], [9, 1280], [9, 1344], [9, 1408], [7, 256], [7, 256], [7, 256], [7, 256], [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, 2], [4, 2], [4, 2], [4, 2], [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], [4, 3], [4, 3], [4, 3], [4, 3], [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, 128], [5, 128], [5, 128], [5, 128], [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, 8], [5, 8], [5, 8], [5, 8], [5, 9], [5, 9], [5, 9], [5, 9], [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], [6, 16], [6, 16], [6, 16], [6, 16], [6, 17], [6, 17], [6, 17], [6, 17], [6, 17], [6, 17], [6, 17], [6, 17], [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, 4], [4, 4], [4, 4], [4, 4], [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], [4, 5], [4, 5], [4, 5], [4, 5], [6, 14], [6, 14], [6, 14], [6, 14], [6, 14], [6, 14], [6, 14], [6, 14], [6, 15], [6, 15], [6, 15], [6, 15], [6, 15], [6, 15], [6, 15], [6, 15], [5, 64], [5, 64], [5, 64], [5, 64], [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], [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], [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]];
  6483. var blackTable1 = [[-1, -1], [-1, -1], [12, ccittEOL], [12, ccittEOL], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [11, 1792], [11, 1792], [11, 1792], [11, 1792], [12, 1984], [12, 1984], [12, 2048], [12, 2048], [12, 2112], [12, 2112], [12, 2176], [12, 2176], [12, 2240], [12, 2240], [12, 2304], [12, 2304], [11, 1856], [11, 1856], [11, 1856], [11, 1856], [11, 1920], [11, 1920], [11, 1920], [11, 1920], [12, 2368], [12, 2368], [12, 2432], [12, 2432], [12, 2496], [12, 2496], [12, 2560], [12, 2560], [10, 18], [10, 18], [10, 18], [10, 18], [10, 18], [10, 18], [10, 18], [10, 18], [12, 52], [12, 52], [13, 640], [13, 704], [13, 768], [13, 832], [12, 55], [12, 55], [12, 56], [12, 56], [13, 1280], [13, 1344], [13, 1408], [13, 1472], [12, 59], [12, 59], [12, 60], [12, 60], [13, 1536], [13, 1600], [11, 24], [11, 24], [11, 24], [11, 24], [11, 25], [11, 25], [11, 25], [11, 25], [13, 1664], [13, 1728], [12, 320], [12, 320], [12, 384], [12, 384], [12, 448], [12, 448], [13, 512], [13, 576], [12, 53], [12, 53], [12, 54], [12, 54], [13, 896], [13, 960], [13, 1024], [13, 1088], [13, 1152], [13, 1216], [10, 64], [10, 64], [10, 64], [10, 64], [10, 64], [10, 64], [10, 64], [10, 64]];
  6484. var blackTable2 = [[8, 13], [8, 13], [8, 13], [8, 13], [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], [12, 50], [12, 51], [12, 44], [12, 45], [12, 46], [12, 47], [12, 57], [12, 58], [12, 61], [12, 256], [10, 16], [10, 16], [10, 16], [10, 16], [10, 17], [10, 17], [10, 17], [10, 17], [12, 48], [12, 49], [12, 62], [12, 63], [12, 30], [12, 31], [12, 32], [12, 33], [12, 40], [12, 41], [11, 22], [11, 22], [8, 14], [8, 14], [8, 14], [8, 14], [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], [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], [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], [9, 15], [9, 15], [9, 15], [9, 15], [12, 128], [12, 192], [12, 26], [12, 27], [12, 28], [12, 29], [11, 19], [11, 19], [11, 20], [11, 20], [12, 34], [12, 35], [12, 36], [12, 37], [12, 38], [12, 39], [11, 21], [11, 21], [12, 42], [12, 43], [10, 0], [10, 0], [10, 0], [10, 0], [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], [7, 12], [7, 12], [7, 12], [7, 12]];
  6485. var blackTable3 = [[-1, -1], [-1, -1], [-1, -1], [-1, -1], [6, 9], [6, 8], [5, 7], [5, 7], [4, 6], [4, 6], [4, 6], [4, 6], [4, 5], [4, 5], [4, 5], [4, 5], [3, 1], [3, 1], [3, 1], [3, 1], [3, 1], [3, 1], [3, 1], [3, 1], [3, 4], [3, 4], [3, 4], [3, 4], [3, 4], [3, 4], [3, 4], [3, 4], [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, 3], [2, 3], [2, 3], [2, 3], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2]];
  6486. var CCITTFaxDecoder = /*#__PURE__*/function () {
  6487. function CCITTFaxDecoder(source) {
  6488. var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  6489. _classCallCheck(this, CCITTFaxDecoder);
  6490. if (!source || typeof source.next !== "function") {
  6491. throw new Error('CCITTFaxDecoder - invalid "source" parameter.');
  6492. }
  6493. this.source = source;
  6494. this.eof = false;
  6495. this.encoding = options.K || 0;
  6496. this.eoline = options.EndOfLine || false;
  6497. this.byteAlign = options.EncodedByteAlign || false;
  6498. this.columns = options.Columns || 1728;
  6499. this.rows = options.Rows || 0;
  6500. var eoblock = options.EndOfBlock;
  6501. if (eoblock === null || eoblock === undefined) {
  6502. eoblock = true;
  6503. }
  6504. this.eoblock = eoblock;
  6505. this.black = options.BlackIs1 || false;
  6506. this.codingLine = new Uint32Array(this.columns + 1);
  6507. this.refLine = new Uint32Array(this.columns + 2);
  6508. this.codingLine[0] = this.columns;
  6509. this.codingPos = 0;
  6510. this.row = 0;
  6511. this.nextLine2D = this.encoding < 0;
  6512. this.inputBits = 0;
  6513. this.inputBuf = 0;
  6514. this.outputBits = 0;
  6515. this.rowsDone = false;
  6516. var code1;
  6517. while ((code1 = this._lookBits(12)) === 0) {
  6518. this._eatBits(1);
  6519. }
  6520. if (code1 === 1) {
  6521. this._eatBits(12);
  6522. }
  6523. if (this.encoding > 0) {
  6524. this.nextLine2D = !this._lookBits(1);
  6525. this._eatBits(1);
  6526. }
  6527. }
  6528. _createClass(CCITTFaxDecoder, [{
  6529. key: "readNextChar",
  6530. value: function readNextChar() {
  6531. if (this.eof) {
  6532. return -1;
  6533. }
  6534. var refLine = this.refLine;
  6535. var codingLine = this.codingLine;
  6536. var columns = this.columns;
  6537. var refPos, blackPixels, bits, i;
  6538. if (this.outputBits === 0) {
  6539. if (this.rowsDone) {
  6540. this.eof = true;
  6541. }
  6542. if (this.eof) {
  6543. return -1;
  6544. }
  6545. this.err = false;
  6546. var code1, code2, code3;
  6547. if (this.nextLine2D) {
  6548. for (i = 0; codingLine[i] < columns; ++i) {
  6549. refLine[i] = codingLine[i];
  6550. }
  6551. refLine[i++] = columns;
  6552. refLine[i] = columns;
  6553. codingLine[0] = 0;
  6554. this.codingPos = 0;
  6555. refPos = 0;
  6556. blackPixels = 0;
  6557. while (codingLine[this.codingPos] < columns) {
  6558. code1 = this._getTwoDimCode();
  6559. switch (code1) {
  6560. case twoDimPass:
  6561. this._addPixels(refLine[refPos + 1], blackPixels);
  6562. if (refLine[refPos + 1] < columns) {
  6563. refPos += 2;
  6564. }
  6565. break;
  6566. case twoDimHoriz:
  6567. code1 = code2 = 0;
  6568. if (blackPixels) {
  6569. do {
  6570. code1 += code3 = this._getBlackCode();
  6571. } while (code3 >= 64);
  6572. do {
  6573. code2 += code3 = this._getWhiteCode();
  6574. } while (code3 >= 64);
  6575. } else {
  6576. do {
  6577. code1 += code3 = this._getWhiteCode();
  6578. } while (code3 >= 64);
  6579. do {
  6580. code2 += code3 = this._getBlackCode();
  6581. } while (code3 >= 64);
  6582. }
  6583. this._addPixels(codingLine[this.codingPos] + code1, blackPixels);
  6584. if (codingLine[this.codingPos] < columns) {
  6585. this._addPixels(codingLine[this.codingPos] + code2, blackPixels ^ 1);
  6586. }
  6587. while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
  6588. refPos += 2;
  6589. }
  6590. break;
  6591. case twoDimVertR3:
  6592. this._addPixels(refLine[refPos] + 3, blackPixels);
  6593. blackPixels ^= 1;
  6594. if (codingLine[this.codingPos] < columns) {
  6595. ++refPos;
  6596. while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
  6597. refPos += 2;
  6598. }
  6599. }
  6600. break;
  6601. case twoDimVertR2:
  6602. this._addPixels(refLine[refPos] + 2, blackPixels);
  6603. blackPixels ^= 1;
  6604. if (codingLine[this.codingPos] < columns) {
  6605. ++refPos;
  6606. while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
  6607. refPos += 2;
  6608. }
  6609. }
  6610. break;
  6611. case twoDimVertR1:
  6612. this._addPixels(refLine[refPos] + 1, blackPixels);
  6613. blackPixels ^= 1;
  6614. if (codingLine[this.codingPos] < columns) {
  6615. ++refPos;
  6616. while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
  6617. refPos += 2;
  6618. }
  6619. }
  6620. break;
  6621. case twoDimVert0:
  6622. this._addPixels(refLine[refPos], blackPixels);
  6623. blackPixels ^= 1;
  6624. if (codingLine[this.codingPos] < columns) {
  6625. ++refPos;
  6626. while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
  6627. refPos += 2;
  6628. }
  6629. }
  6630. break;
  6631. case twoDimVertL3:
  6632. this._addPixelsNeg(refLine[refPos] - 3, blackPixels);
  6633. blackPixels ^= 1;
  6634. if (codingLine[this.codingPos] < columns) {
  6635. if (refPos > 0) {
  6636. --refPos;
  6637. } else {
  6638. ++refPos;
  6639. }
  6640. while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
  6641. refPos += 2;
  6642. }
  6643. }
  6644. break;
  6645. case twoDimVertL2:
  6646. this._addPixelsNeg(refLine[refPos] - 2, blackPixels);
  6647. blackPixels ^= 1;
  6648. if (codingLine[this.codingPos] < columns) {
  6649. if (refPos > 0) {
  6650. --refPos;
  6651. } else {
  6652. ++refPos;
  6653. }
  6654. while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
  6655. refPos += 2;
  6656. }
  6657. }
  6658. break;
  6659. case twoDimVertL1:
  6660. this._addPixelsNeg(refLine[refPos] - 1, blackPixels);
  6661. blackPixels ^= 1;
  6662. if (codingLine[this.codingPos] < columns) {
  6663. if (refPos > 0) {
  6664. --refPos;
  6665. } else {
  6666. ++refPos;
  6667. }
  6668. while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
  6669. refPos += 2;
  6670. }
  6671. }
  6672. break;
  6673. case ccittEOF:
  6674. this._addPixels(columns, 0);
  6675. this.eof = true;
  6676. break;
  6677. default:
  6678. (0, _util.info)("bad 2d code");
  6679. this._addPixels(columns, 0);
  6680. this.err = true;
  6681. }
  6682. }
  6683. } else {
  6684. codingLine[0] = 0;
  6685. this.codingPos = 0;
  6686. blackPixels = 0;
  6687. while (codingLine[this.codingPos] < columns) {
  6688. code1 = 0;
  6689. if (blackPixels) {
  6690. do {
  6691. code1 += code3 = this._getBlackCode();
  6692. } while (code3 >= 64);
  6693. } else {
  6694. do {
  6695. code1 += code3 = this._getWhiteCode();
  6696. } while (code3 >= 64);
  6697. }
  6698. this._addPixels(codingLine[this.codingPos] + code1, blackPixels);
  6699. blackPixels ^= 1;
  6700. }
  6701. }
  6702. var gotEOL = false;
  6703. if (this.byteAlign) {
  6704. this.inputBits &= ~7;
  6705. }
  6706. if (!this.eoblock && this.row === this.rows - 1) {
  6707. this.rowsDone = true;
  6708. } else {
  6709. code1 = this._lookBits(12);
  6710. if (this.eoline) {
  6711. while (code1 !== ccittEOF && code1 !== 1) {
  6712. this._eatBits(1);
  6713. code1 = this._lookBits(12);
  6714. }
  6715. } else {
  6716. while (code1 === 0) {
  6717. this._eatBits(1);
  6718. code1 = this._lookBits(12);
  6719. }
  6720. }
  6721. if (code1 === 1) {
  6722. this._eatBits(12);
  6723. gotEOL = true;
  6724. } else if (code1 === ccittEOF) {
  6725. this.eof = true;
  6726. }
  6727. }
  6728. if (!this.eof && this.encoding > 0 && !this.rowsDone) {
  6729. this.nextLine2D = !this._lookBits(1);
  6730. this._eatBits(1);
  6731. }
  6732. if (this.eoblock && gotEOL && this.byteAlign) {
  6733. code1 = this._lookBits(12);
  6734. if (code1 === 1) {
  6735. this._eatBits(12);
  6736. if (this.encoding > 0) {
  6737. this._lookBits(1);
  6738. this._eatBits(1);
  6739. }
  6740. if (this.encoding >= 0) {
  6741. for (i = 0; i < 4; ++i) {
  6742. code1 = this._lookBits(12);
  6743. if (code1 !== 1) {
  6744. (0, _util.info)("bad rtc code: " + code1);
  6745. }
  6746. this._eatBits(12);
  6747. if (this.encoding > 0) {
  6748. this._lookBits(1);
  6749. this._eatBits(1);
  6750. }
  6751. }
  6752. }
  6753. this.eof = true;
  6754. }
  6755. } else if (this.err && this.eoline) {
  6756. while (true) {
  6757. code1 = this._lookBits(13);
  6758. if (code1 === ccittEOF) {
  6759. this.eof = true;
  6760. return -1;
  6761. }
  6762. if (code1 >> 1 === 1) {
  6763. break;
  6764. }
  6765. this._eatBits(1);
  6766. }
  6767. this._eatBits(12);
  6768. if (this.encoding > 0) {
  6769. this._eatBits(1);
  6770. this.nextLine2D = !(code1 & 1);
  6771. }
  6772. }
  6773. if (codingLine[0] > 0) {
  6774. this.outputBits = codingLine[this.codingPos = 0];
  6775. } else {
  6776. this.outputBits = codingLine[this.codingPos = 1];
  6777. }
  6778. this.row++;
  6779. }
  6780. var c;
  6781. if (this.outputBits >= 8) {
  6782. c = this.codingPos & 1 ? 0 : 0xff;
  6783. this.outputBits -= 8;
  6784. if (this.outputBits === 0 && codingLine[this.codingPos] < columns) {
  6785. this.codingPos++;
  6786. this.outputBits = codingLine[this.codingPos] - codingLine[this.codingPos - 1];
  6787. }
  6788. } else {
  6789. bits = 8;
  6790. c = 0;
  6791. do {
  6792. if (this.outputBits > bits) {
  6793. c <<= bits;
  6794. if (!(this.codingPos & 1)) {
  6795. c |= 0xff >> 8 - bits;
  6796. }
  6797. this.outputBits -= bits;
  6798. bits = 0;
  6799. } else {
  6800. c <<= this.outputBits;
  6801. if (!(this.codingPos & 1)) {
  6802. c |= 0xff >> 8 - this.outputBits;
  6803. }
  6804. bits -= this.outputBits;
  6805. this.outputBits = 0;
  6806. if (codingLine[this.codingPos] < columns) {
  6807. this.codingPos++;
  6808. this.outputBits = codingLine[this.codingPos] - codingLine[this.codingPos - 1];
  6809. } else if (bits > 0) {
  6810. c <<= bits;
  6811. bits = 0;
  6812. }
  6813. }
  6814. } while (bits);
  6815. }
  6816. if (this.black) {
  6817. c ^= 0xff;
  6818. }
  6819. return c;
  6820. }
  6821. }, {
  6822. key: "_addPixels",
  6823. value: function _addPixels(a1, blackPixels) {
  6824. var codingLine = this.codingLine;
  6825. var codingPos = this.codingPos;
  6826. if (a1 > codingLine[codingPos]) {
  6827. if (a1 > this.columns) {
  6828. (0, _util.info)("row is wrong length");
  6829. this.err = true;
  6830. a1 = this.columns;
  6831. }
  6832. if (codingPos & 1 ^ blackPixels) {
  6833. ++codingPos;
  6834. }
  6835. codingLine[codingPos] = a1;
  6836. }
  6837. this.codingPos = codingPos;
  6838. }
  6839. }, {
  6840. key: "_addPixelsNeg",
  6841. value: function _addPixelsNeg(a1, blackPixels) {
  6842. var codingLine = this.codingLine;
  6843. var codingPos = this.codingPos;
  6844. if (a1 > codingLine[codingPos]) {
  6845. if (a1 > this.columns) {
  6846. (0, _util.info)("row is wrong length");
  6847. this.err = true;
  6848. a1 = this.columns;
  6849. }
  6850. if (codingPos & 1 ^ blackPixels) {
  6851. ++codingPos;
  6852. }
  6853. codingLine[codingPos] = a1;
  6854. } else if (a1 < codingLine[codingPos]) {
  6855. if (a1 < 0) {
  6856. (0, _util.info)("invalid code");
  6857. this.err = true;
  6858. a1 = 0;
  6859. }
  6860. while (codingPos > 0 && a1 < codingLine[codingPos - 1]) {
  6861. --codingPos;
  6862. }
  6863. codingLine[codingPos] = a1;
  6864. }
  6865. this.codingPos = codingPos;
  6866. }
  6867. }, {
  6868. key: "_findTableCode",
  6869. value: function _findTableCode(start, end, table, limit) {
  6870. var limitValue = limit || 0;
  6871. for (var i = start; i <= end; ++i) {
  6872. var code = this._lookBits(i);
  6873. if (code === ccittEOF) {
  6874. return [true, 1, false];
  6875. }
  6876. if (i < end) {
  6877. code <<= end - i;
  6878. }
  6879. if (!limitValue || code >= limitValue) {
  6880. var p = table[code - limitValue];
  6881. if (p[0] === i) {
  6882. this._eatBits(i);
  6883. return [true, p[1], true];
  6884. }
  6885. }
  6886. }
  6887. return [false, 0, false];
  6888. }
  6889. }, {
  6890. key: "_getTwoDimCode",
  6891. value: function _getTwoDimCode() {
  6892. var code = 0;
  6893. var p;
  6894. if (this.eoblock) {
  6895. code = this._lookBits(7);
  6896. p = twoDimTable[code];
  6897. if (p && p[0] > 0) {
  6898. this._eatBits(p[0]);
  6899. return p[1];
  6900. }
  6901. } else {
  6902. var result = this._findTableCode(1, 7, twoDimTable);
  6903. if (result[0] && result[2]) {
  6904. return result[1];
  6905. }
  6906. }
  6907. (0, _util.info)("Bad two dim code");
  6908. return ccittEOF;
  6909. }
  6910. }, {
  6911. key: "_getWhiteCode",
  6912. value: function _getWhiteCode() {
  6913. var code = 0;
  6914. var p;
  6915. if (this.eoblock) {
  6916. code = this._lookBits(12);
  6917. if (code === ccittEOF) {
  6918. return 1;
  6919. }
  6920. if (code >> 5 === 0) {
  6921. p = whiteTable1[code];
  6922. } else {
  6923. p = whiteTable2[code >> 3];
  6924. }
  6925. if (p[0] > 0) {
  6926. this._eatBits(p[0]);
  6927. return p[1];
  6928. }
  6929. } else {
  6930. var result = this._findTableCode(1, 9, whiteTable2);
  6931. if (result[0]) {
  6932. return result[1];
  6933. }
  6934. result = this._findTableCode(11, 12, whiteTable1);
  6935. if (result[0]) {
  6936. return result[1];
  6937. }
  6938. }
  6939. (0, _util.info)("bad white code");
  6940. this._eatBits(1);
  6941. return 1;
  6942. }
  6943. }, {
  6944. key: "_getBlackCode",
  6945. value: function _getBlackCode() {
  6946. var code, p;
  6947. if (this.eoblock) {
  6948. code = this._lookBits(13);
  6949. if (code === ccittEOF) {
  6950. return 1;
  6951. }
  6952. if (code >> 7 === 0) {
  6953. p = blackTable1[code];
  6954. } else if (code >> 9 === 0 && code >> 7 !== 0) {
  6955. p = blackTable2[(code >> 1) - 64];
  6956. } else {
  6957. p = blackTable3[code >> 7];
  6958. }
  6959. if (p[0] > 0) {
  6960. this._eatBits(p[0]);
  6961. return p[1];
  6962. }
  6963. } else {
  6964. var result = this._findTableCode(2, 6, blackTable3);
  6965. if (result[0]) {
  6966. return result[1];
  6967. }
  6968. result = this._findTableCode(7, 12, blackTable2, 64);
  6969. if (result[0]) {
  6970. return result[1];
  6971. }
  6972. result = this._findTableCode(10, 13, blackTable1);
  6973. if (result[0]) {
  6974. return result[1];
  6975. }
  6976. }
  6977. (0, _util.info)("bad black code");
  6978. this._eatBits(1);
  6979. return 1;
  6980. }
  6981. }, {
  6982. key: "_lookBits",
  6983. value: function _lookBits(n) {
  6984. var c;
  6985. while (this.inputBits < n) {
  6986. if ((c = this.source.next()) === -1) {
  6987. if (this.inputBits === 0) {
  6988. return ccittEOF;
  6989. }
  6990. return this.inputBuf << n - this.inputBits & 0xffff >> 16 - n;
  6991. }
  6992. this.inputBuf = this.inputBuf << 8 | c;
  6993. this.inputBits += 8;
  6994. }
  6995. return this.inputBuf >> this.inputBits - n & 0xffff >> 16 - n;
  6996. }
  6997. }, {
  6998. key: "_eatBits",
  6999. value: function _eatBits(n) {
  7000. if ((this.inputBits -= n) < 0) {
  7001. this.inputBits = 0;
  7002. }
  7003. }
  7004. }]);
  7005. return CCITTFaxDecoder;
  7006. }();
  7007. exports.CCITTFaxDecoder = CCITTFaxDecoder;
  7008. /***/ }),
  7009. /* 94 */
  7010. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  7011. "use strict";
  7012. Object.defineProperty(exports, "__esModule", ({
  7013. value: true
  7014. }));
  7015. exports.JpegImage = void 0;
  7016. var _util = __w_pdfjs_require__(1);
  7017. var _core_utils = __w_pdfjs_require__(87);
  7018. function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  7019. function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  7020. function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  7021. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  7022. function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  7023. function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  7024. function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  7025. function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
  7026. function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  7027. function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
  7028. function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  7029. var JpegError = /*#__PURE__*/function (_BaseException) {
  7030. _inherits(JpegError, _BaseException);
  7031. var _super = _createSuper(JpegError);
  7032. function JpegError(msg) {
  7033. _classCallCheck(this, JpegError);
  7034. return _super.call(this, "JPEG error: ".concat(msg), "JpegError");
  7035. }
  7036. return JpegError;
  7037. }(_util.BaseException);
  7038. var DNLMarkerError = /*#__PURE__*/function (_BaseException2) {
  7039. _inherits(DNLMarkerError, _BaseException2);
  7040. var _super2 = _createSuper(DNLMarkerError);
  7041. function DNLMarkerError(message, scanLines) {
  7042. var _this;
  7043. _classCallCheck(this, DNLMarkerError);
  7044. _this = _super2.call(this, message, "DNLMarkerError");
  7045. _this.scanLines = scanLines;
  7046. return _this;
  7047. }
  7048. return DNLMarkerError;
  7049. }(_util.BaseException);
  7050. var EOIMarkerError = /*#__PURE__*/function (_BaseException3) {
  7051. _inherits(EOIMarkerError, _BaseException3);
  7052. var _super3 = _createSuper(EOIMarkerError);
  7053. function EOIMarkerError(msg) {
  7054. _classCallCheck(this, EOIMarkerError);
  7055. return _super3.call(this, msg, "EOIMarkerError");
  7056. }
  7057. return EOIMarkerError;
  7058. }(_util.BaseException);
  7059. 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]);
  7060. var dctCos1 = 4017;
  7061. var dctSin1 = 799;
  7062. var dctCos3 = 3406;
  7063. var dctSin3 = 2276;
  7064. var dctCos6 = 1567;
  7065. var dctSin6 = 3784;
  7066. var dctSqrt2 = 5793;
  7067. var dctSqrt1d2 = 2896;
  7068. function buildHuffmanTable(codeLengths, values) {
  7069. var k = 0,
  7070. i,
  7071. j,
  7072. length = 16;
  7073. while (length > 0 && !codeLengths[length - 1]) {
  7074. length--;
  7075. }
  7076. var code = [{
  7077. children: [],
  7078. index: 0
  7079. }];
  7080. var p = code[0],
  7081. q;
  7082. for (i = 0; i < length; i++) {
  7083. for (j = 0; j < codeLengths[i]; j++) {
  7084. p = code.pop();
  7085. p.children[p.index] = values[k];
  7086. while (p.index > 0) {
  7087. p = code.pop();
  7088. }
  7089. p.index++;
  7090. code.push(p);
  7091. while (code.length <= i) {
  7092. code.push(q = {
  7093. children: [],
  7094. index: 0
  7095. });
  7096. p.children[p.index] = q.children;
  7097. p = q;
  7098. }
  7099. k++;
  7100. }
  7101. if (i + 1 < length) {
  7102. code.push(q = {
  7103. children: [],
  7104. index: 0
  7105. });
  7106. p.children[p.index] = q.children;
  7107. p = q;
  7108. }
  7109. }
  7110. return code[0].children;
  7111. }
  7112. function getBlockBufferOffset(component, row, col) {
  7113. return 64 * ((component.blocksPerLine + 1) * row + col);
  7114. }
  7115. function decodeScan(data, offset, frame, components, resetInterval, spectralStart, spectralEnd, successivePrev, successive) {
  7116. var parseDNLMarker = arguments.length > 9 && arguments[9] !== undefined ? arguments[9] : false;
  7117. var mcusPerLine = frame.mcusPerLine;
  7118. var progressive = frame.progressive;
  7119. var startOffset = offset;
  7120. var bitsData = 0,
  7121. bitsCount = 0;
  7122. function readBit() {
  7123. if (bitsCount > 0) {
  7124. bitsCount--;
  7125. return bitsData >> bitsCount & 1;
  7126. }
  7127. bitsData = data[offset++];
  7128. if (bitsData === 0xff) {
  7129. var nextByte = data[offset++];
  7130. if (nextByte) {
  7131. if (nextByte === 0xdc && parseDNLMarker) {
  7132. offset += 2;
  7133. var scanLines = (0, _core_utils.readUint16)(data, offset);
  7134. offset += 2;
  7135. if (scanLines > 0 && scanLines !== frame.scanLines) {
  7136. throw new DNLMarkerError("Found DNL marker (0xFFDC) while parsing scan data", scanLines);
  7137. }
  7138. } else if (nextByte === 0xd9) {
  7139. if (parseDNLMarker) {
  7140. var maybeScanLines = blockRow * (frame.precision === 8 ? 8 : 0);
  7141. if (maybeScanLines > 0 && Math.round(frame.scanLines / maybeScanLines) >= 10) {
  7142. throw new DNLMarkerError("Found EOI marker (0xFFD9) while parsing scan data, " + "possibly caused by incorrect `scanLines` parameter", maybeScanLines);
  7143. }
  7144. }
  7145. throw new EOIMarkerError("Found EOI marker (0xFFD9) while parsing scan data");
  7146. }
  7147. throw new JpegError("unexpected marker ".concat((bitsData << 8 | nextByte).toString(16)));
  7148. }
  7149. }
  7150. bitsCount = 7;
  7151. return bitsData >>> 7;
  7152. }
  7153. function decodeHuffman(tree) {
  7154. var node = tree;
  7155. while (true) {
  7156. node = node[readBit()];
  7157. switch (_typeof(node)) {
  7158. case "number":
  7159. return node;
  7160. case "object":
  7161. continue;
  7162. }
  7163. throw new JpegError("invalid huffman sequence");
  7164. }
  7165. }
  7166. function receive(length) {
  7167. var n = 0;
  7168. while (length > 0) {
  7169. n = n << 1 | readBit();
  7170. length--;
  7171. }
  7172. return n;
  7173. }
  7174. function receiveAndExtend(length) {
  7175. if (length === 1) {
  7176. return readBit() === 1 ? 1 : -1;
  7177. }
  7178. var n = receive(length);
  7179. if (n >= 1 << length - 1) {
  7180. return n;
  7181. }
  7182. return n + (-1 << length) + 1;
  7183. }
  7184. function decodeBaseline(component, blockOffset) {
  7185. var t = decodeHuffman(component.huffmanTableDC);
  7186. var diff = t === 0 ? 0 : receiveAndExtend(t);
  7187. component.blockData[blockOffset] = component.pred += diff;
  7188. var k = 1;
  7189. while (k < 64) {
  7190. var rs = decodeHuffman(component.huffmanTableAC);
  7191. var s = rs & 15,
  7192. r = rs >> 4;
  7193. if (s === 0) {
  7194. if (r < 15) {
  7195. break;
  7196. }
  7197. k += 16;
  7198. continue;
  7199. }
  7200. k += r;
  7201. var z = dctZigZag[k];
  7202. component.blockData[blockOffset + z] = receiveAndExtend(s);
  7203. k++;
  7204. }
  7205. }
  7206. function decodeDCFirst(component, blockOffset) {
  7207. var t = decodeHuffman(component.huffmanTableDC);
  7208. var diff = t === 0 ? 0 : receiveAndExtend(t) << successive;
  7209. component.blockData[blockOffset] = component.pred += diff;
  7210. }
  7211. function decodeDCSuccessive(component, blockOffset) {
  7212. component.blockData[blockOffset] |= readBit() << successive;
  7213. }
  7214. var eobrun = 0;
  7215. function decodeACFirst(component, blockOffset) {
  7216. if (eobrun > 0) {
  7217. eobrun--;
  7218. return;
  7219. }
  7220. var k = spectralStart;
  7221. var e = spectralEnd;
  7222. while (k <= e) {
  7223. var rs = decodeHuffman(component.huffmanTableAC);
  7224. var s = rs & 15,
  7225. r = rs >> 4;
  7226. if (s === 0) {
  7227. if (r < 15) {
  7228. eobrun = receive(r) + (1 << r) - 1;
  7229. break;
  7230. }
  7231. k += 16;
  7232. continue;
  7233. }
  7234. k += r;
  7235. var z = dctZigZag[k];
  7236. component.blockData[blockOffset + z] = receiveAndExtend(s) * (1 << successive);
  7237. k++;
  7238. }
  7239. }
  7240. var successiveACState = 0,
  7241. successiveACNextValue;
  7242. function decodeACSuccessive(component, blockOffset) {
  7243. var k = spectralStart;
  7244. var e = spectralEnd;
  7245. var r = 0;
  7246. var s;
  7247. var rs;
  7248. while (k <= e) {
  7249. var offsetZ = blockOffset + dctZigZag[k];
  7250. var sign = component.blockData[offsetZ] < 0 ? -1 : 1;
  7251. switch (successiveACState) {
  7252. case 0:
  7253. rs = decodeHuffman(component.huffmanTableAC);
  7254. s = rs & 15;
  7255. r = rs >> 4;
  7256. if (s === 0) {
  7257. if (r < 15) {
  7258. eobrun = receive(r) + (1 << r);
  7259. successiveACState = 4;
  7260. } else {
  7261. r = 16;
  7262. successiveACState = 1;
  7263. }
  7264. } else {
  7265. if (s !== 1) {
  7266. throw new JpegError("invalid ACn encoding");
  7267. }
  7268. successiveACNextValue = receiveAndExtend(s);
  7269. successiveACState = r ? 2 : 3;
  7270. }
  7271. continue;
  7272. case 1:
  7273. case 2:
  7274. if (component.blockData[offsetZ]) {
  7275. component.blockData[offsetZ] += sign * (readBit() << successive);
  7276. } else {
  7277. r--;
  7278. if (r === 0) {
  7279. successiveACState = successiveACState === 2 ? 3 : 0;
  7280. }
  7281. }
  7282. break;
  7283. case 3:
  7284. if (component.blockData[offsetZ]) {
  7285. component.blockData[offsetZ] += sign * (readBit() << successive);
  7286. } else {
  7287. component.blockData[offsetZ] = successiveACNextValue << successive;
  7288. successiveACState = 0;
  7289. }
  7290. break;
  7291. case 4:
  7292. if (component.blockData[offsetZ]) {
  7293. component.blockData[offsetZ] += sign * (readBit() << successive);
  7294. }
  7295. break;
  7296. }
  7297. k++;
  7298. }
  7299. if (successiveACState === 4) {
  7300. eobrun--;
  7301. if (eobrun === 0) {
  7302. successiveACState = 0;
  7303. }
  7304. }
  7305. }
  7306. var blockRow = 0;
  7307. function decodeMcu(component, decode, mcu, row, col) {
  7308. var mcuRow = mcu / mcusPerLine | 0;
  7309. var mcuCol = mcu % mcusPerLine;
  7310. blockRow = mcuRow * component.v + row;
  7311. var blockCol = mcuCol * component.h + col;
  7312. var blockOffset = getBlockBufferOffset(component, blockRow, blockCol);
  7313. decode(component, blockOffset);
  7314. }
  7315. function decodeBlock(component, decode, mcu) {
  7316. blockRow = mcu / component.blocksPerLine | 0;
  7317. var blockCol = mcu % component.blocksPerLine;
  7318. var blockOffset = getBlockBufferOffset(component, blockRow, blockCol);
  7319. decode(component, blockOffset);
  7320. }
  7321. var componentsLength = components.length;
  7322. var component, i, j, k, n;
  7323. var decodeFn;
  7324. if (progressive) {
  7325. if (spectralStart === 0) {
  7326. decodeFn = successivePrev === 0 ? decodeDCFirst : decodeDCSuccessive;
  7327. } else {
  7328. decodeFn = successivePrev === 0 ? decodeACFirst : decodeACSuccessive;
  7329. }
  7330. } else {
  7331. decodeFn = decodeBaseline;
  7332. }
  7333. var mcu = 0,
  7334. fileMarker;
  7335. var mcuExpected;
  7336. if (componentsLength === 1) {
  7337. mcuExpected = components[0].blocksPerLine * components[0].blocksPerColumn;
  7338. } else {
  7339. mcuExpected = mcusPerLine * frame.mcusPerColumn;
  7340. }
  7341. var h, v;
  7342. while (mcu <= mcuExpected) {
  7343. var mcuToRead = resetInterval ? Math.min(mcuExpected - mcu, resetInterval) : mcuExpected;
  7344. if (mcuToRead > 0) {
  7345. for (i = 0; i < componentsLength; i++) {
  7346. components[i].pred = 0;
  7347. }
  7348. eobrun = 0;
  7349. if (componentsLength === 1) {
  7350. component = components[0];
  7351. for (n = 0; n < mcuToRead; n++) {
  7352. decodeBlock(component, decodeFn, mcu);
  7353. mcu++;
  7354. }
  7355. } else {
  7356. for (n = 0; n < mcuToRead; n++) {
  7357. for (i = 0; i < componentsLength; i++) {
  7358. component = components[i];
  7359. h = component.h;
  7360. v = component.v;
  7361. for (j = 0; j < v; j++) {
  7362. for (k = 0; k < h; k++) {
  7363. decodeMcu(component, decodeFn, mcu, j, k);
  7364. }
  7365. }
  7366. }
  7367. mcu++;
  7368. }
  7369. }
  7370. }
  7371. bitsCount = 0;
  7372. fileMarker = findNextFileMarker(data, offset);
  7373. if (!fileMarker) {
  7374. break;
  7375. }
  7376. if (fileMarker.invalid) {
  7377. var partialMsg = mcuToRead > 0 ? "unexpected" : "excessive";
  7378. (0, _util.warn)("decodeScan - ".concat(partialMsg, " MCU data, current marker is: ").concat(fileMarker.invalid));
  7379. offset = fileMarker.offset;
  7380. }
  7381. if (fileMarker.marker >= 0xffd0 && fileMarker.marker <= 0xffd7) {
  7382. offset += 2;
  7383. } else {
  7384. break;
  7385. }
  7386. }
  7387. return offset - startOffset;
  7388. }
  7389. function quantizeAndInverse(component, blockBufferOffset, p) {
  7390. var qt = component.quantizationTable,
  7391. blockData = component.blockData;
  7392. var v0, v1, v2, v3, v4, v5, v6, v7;
  7393. var p0, p1, p2, p3, p4, p5, p6, p7;
  7394. var t;
  7395. if (!qt) {
  7396. throw new JpegError("missing required Quantization Table.");
  7397. }
  7398. for (var row = 0; row < 64; row += 8) {
  7399. p0 = blockData[blockBufferOffset + row];
  7400. p1 = blockData[blockBufferOffset + row + 1];
  7401. p2 = blockData[blockBufferOffset + row + 2];
  7402. p3 = blockData[blockBufferOffset + row + 3];
  7403. p4 = blockData[blockBufferOffset + row + 4];
  7404. p5 = blockData[blockBufferOffset + row + 5];
  7405. p6 = blockData[blockBufferOffset + row + 6];
  7406. p7 = blockData[blockBufferOffset + row + 7];
  7407. p0 *= qt[row];
  7408. if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) {
  7409. t = dctSqrt2 * p0 + 512 >> 10;
  7410. p[row] = t;
  7411. p[row + 1] = t;
  7412. p[row + 2] = t;
  7413. p[row + 3] = t;
  7414. p[row + 4] = t;
  7415. p[row + 5] = t;
  7416. p[row + 6] = t;
  7417. p[row + 7] = t;
  7418. continue;
  7419. }
  7420. p1 *= qt[row + 1];
  7421. p2 *= qt[row + 2];
  7422. p3 *= qt[row + 3];
  7423. p4 *= qt[row + 4];
  7424. p5 *= qt[row + 5];
  7425. p6 *= qt[row + 6];
  7426. p7 *= qt[row + 7];
  7427. v0 = dctSqrt2 * p0 + 128 >> 8;
  7428. v1 = dctSqrt2 * p4 + 128 >> 8;
  7429. v2 = p2;
  7430. v3 = p6;
  7431. v4 = dctSqrt1d2 * (p1 - p7) + 128 >> 8;
  7432. v7 = dctSqrt1d2 * (p1 + p7) + 128 >> 8;
  7433. v5 = p3 << 4;
  7434. v6 = p5 << 4;
  7435. v0 = v0 + v1 + 1 >> 1;
  7436. v1 = v0 - v1;
  7437. t = v2 * dctSin6 + v3 * dctCos6 + 128 >> 8;
  7438. v2 = v2 * dctCos6 - v3 * dctSin6 + 128 >> 8;
  7439. v3 = t;
  7440. v4 = v4 + v6 + 1 >> 1;
  7441. v6 = v4 - v6;
  7442. v7 = v7 + v5 + 1 >> 1;
  7443. v5 = v7 - v5;
  7444. v0 = v0 + v3 + 1 >> 1;
  7445. v3 = v0 - v3;
  7446. v1 = v1 + v2 + 1 >> 1;
  7447. v2 = v1 - v2;
  7448. t = v4 * dctSin3 + v7 * dctCos3 + 2048 >> 12;
  7449. v4 = v4 * dctCos3 - v7 * dctSin3 + 2048 >> 12;
  7450. v7 = t;
  7451. t = v5 * dctSin1 + v6 * dctCos1 + 2048 >> 12;
  7452. v5 = v5 * dctCos1 - v6 * dctSin1 + 2048 >> 12;
  7453. v6 = t;
  7454. p[row] = v0 + v7;
  7455. p[row + 7] = v0 - v7;
  7456. p[row + 1] = v1 + v6;
  7457. p[row + 6] = v1 - v6;
  7458. p[row + 2] = v2 + v5;
  7459. p[row + 5] = v2 - v5;
  7460. p[row + 3] = v3 + v4;
  7461. p[row + 4] = v3 - v4;
  7462. }
  7463. for (var col = 0; col < 8; ++col) {
  7464. p0 = p[col];
  7465. p1 = p[col + 8];
  7466. p2 = p[col + 16];
  7467. p3 = p[col + 24];
  7468. p4 = p[col + 32];
  7469. p5 = p[col + 40];
  7470. p6 = p[col + 48];
  7471. p7 = p[col + 56];
  7472. if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) {
  7473. t = dctSqrt2 * p0 + 8192 >> 14;
  7474. if (t < -2040) {
  7475. t = 0;
  7476. } else if (t >= 2024) {
  7477. t = 255;
  7478. } else {
  7479. t = t + 2056 >> 4;
  7480. }
  7481. blockData[blockBufferOffset + col] = t;
  7482. blockData[blockBufferOffset + col + 8] = t;
  7483. blockData[blockBufferOffset + col + 16] = t;
  7484. blockData[blockBufferOffset + col + 24] = t;
  7485. blockData[blockBufferOffset + col + 32] = t;
  7486. blockData[blockBufferOffset + col + 40] = t;
  7487. blockData[blockBufferOffset + col + 48] = t;
  7488. blockData[blockBufferOffset + col + 56] = t;
  7489. continue;
  7490. }
  7491. v0 = dctSqrt2 * p0 + 2048 >> 12;
  7492. v1 = dctSqrt2 * p4 + 2048 >> 12;
  7493. v2 = p2;
  7494. v3 = p6;
  7495. v4 = dctSqrt1d2 * (p1 - p7) + 2048 >> 12;
  7496. v7 = dctSqrt1d2 * (p1 + p7) + 2048 >> 12;
  7497. v5 = p3;
  7498. v6 = p5;
  7499. v0 = (v0 + v1 + 1 >> 1) + 4112;
  7500. v1 = v0 - v1;
  7501. t = v2 * dctSin6 + v3 * dctCos6 + 2048 >> 12;
  7502. v2 = v2 * dctCos6 - v3 * dctSin6 + 2048 >> 12;
  7503. v3 = t;
  7504. v4 = v4 + v6 + 1 >> 1;
  7505. v6 = v4 - v6;
  7506. v7 = v7 + v5 + 1 >> 1;
  7507. v5 = v7 - v5;
  7508. v0 = v0 + v3 + 1 >> 1;
  7509. v3 = v0 - v3;
  7510. v1 = v1 + v2 + 1 >> 1;
  7511. v2 = v1 - v2;
  7512. t = v4 * dctSin3 + v7 * dctCos3 + 2048 >> 12;
  7513. v4 = v4 * dctCos3 - v7 * dctSin3 + 2048 >> 12;
  7514. v7 = t;
  7515. t = v5 * dctSin1 + v6 * dctCos1 + 2048 >> 12;
  7516. v5 = v5 * dctCos1 - v6 * dctSin1 + 2048 >> 12;
  7517. v6 = t;
  7518. p0 = v0 + v7;
  7519. p7 = v0 - v7;
  7520. p1 = v1 + v6;
  7521. p6 = v1 - v6;
  7522. p2 = v2 + v5;
  7523. p5 = v2 - v5;
  7524. p3 = v3 + v4;
  7525. p4 = v3 - v4;
  7526. if (p0 < 16) {
  7527. p0 = 0;
  7528. } else if (p0 >= 4080) {
  7529. p0 = 255;
  7530. } else {
  7531. p0 >>= 4;
  7532. }
  7533. if (p1 < 16) {
  7534. p1 = 0;
  7535. } else if (p1 >= 4080) {
  7536. p1 = 255;
  7537. } else {
  7538. p1 >>= 4;
  7539. }
  7540. if (p2 < 16) {
  7541. p2 = 0;
  7542. } else if (p2 >= 4080) {
  7543. p2 = 255;
  7544. } else {
  7545. p2 >>= 4;
  7546. }
  7547. if (p3 < 16) {
  7548. p3 = 0;
  7549. } else if (p3 >= 4080) {
  7550. p3 = 255;
  7551. } else {
  7552. p3 >>= 4;
  7553. }
  7554. if (p4 < 16) {
  7555. p4 = 0;
  7556. } else if (p4 >= 4080) {
  7557. p4 = 255;
  7558. } else {
  7559. p4 >>= 4;
  7560. }
  7561. if (p5 < 16) {
  7562. p5 = 0;
  7563. } else if (p5 >= 4080) {
  7564. p5 = 255;
  7565. } else {
  7566. p5 >>= 4;
  7567. }
  7568. if (p6 < 16) {
  7569. p6 = 0;
  7570. } else if (p6 >= 4080) {
  7571. p6 = 255;
  7572. } else {
  7573. p6 >>= 4;
  7574. }
  7575. if (p7 < 16) {
  7576. p7 = 0;
  7577. } else if (p7 >= 4080) {
  7578. p7 = 255;
  7579. } else {
  7580. p7 >>= 4;
  7581. }
  7582. blockData[blockBufferOffset + col] = p0;
  7583. blockData[blockBufferOffset + col + 8] = p1;
  7584. blockData[blockBufferOffset + col + 16] = p2;
  7585. blockData[blockBufferOffset + col + 24] = p3;
  7586. blockData[blockBufferOffset + col + 32] = p4;
  7587. blockData[blockBufferOffset + col + 40] = p5;
  7588. blockData[blockBufferOffset + col + 48] = p6;
  7589. blockData[blockBufferOffset + col + 56] = p7;
  7590. }
  7591. }
  7592. function buildComponentData(frame, component) {
  7593. var blocksPerLine = component.blocksPerLine;
  7594. var blocksPerColumn = component.blocksPerColumn;
  7595. var computationBuffer = new Int16Array(64);
  7596. for (var blockRow = 0; blockRow < blocksPerColumn; blockRow++) {
  7597. for (var blockCol = 0; blockCol < blocksPerLine; blockCol++) {
  7598. var offset = getBlockBufferOffset(component, blockRow, blockCol);
  7599. quantizeAndInverse(component, offset, computationBuffer);
  7600. }
  7601. }
  7602. return component.blockData;
  7603. }
  7604. function findNextFileMarker(data, currentPos) {
  7605. var startPos = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : currentPos;
  7606. var maxPos = data.length - 1;
  7607. var newPos = startPos < currentPos ? startPos : currentPos;
  7608. if (currentPos >= maxPos) {
  7609. return null;
  7610. }
  7611. var currentMarker = (0, _core_utils.readUint16)(data, currentPos);
  7612. if (currentMarker >= 0xffc0 && currentMarker <= 0xfffe) {
  7613. return {
  7614. invalid: null,
  7615. marker: currentMarker,
  7616. offset: currentPos
  7617. };
  7618. }
  7619. var newMarker = (0, _core_utils.readUint16)(data, newPos);
  7620. while (!(newMarker >= 0xffc0 && newMarker <= 0xfffe)) {
  7621. if (++newPos >= maxPos) {
  7622. return null;
  7623. }
  7624. newMarker = (0, _core_utils.readUint16)(data, newPos);
  7625. }
  7626. return {
  7627. invalid: currentMarker.toString(16),
  7628. marker: newMarker,
  7629. offset: newPos
  7630. };
  7631. }
  7632. var JpegImage = /*#__PURE__*/function () {
  7633. function JpegImage() {
  7634. var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
  7635. _ref$decodeTransform = _ref.decodeTransform,
  7636. decodeTransform = _ref$decodeTransform === void 0 ? null : _ref$decodeTransform,
  7637. _ref$colorTransform = _ref.colorTransform,
  7638. colorTransform = _ref$colorTransform === void 0 ? -1 : _ref$colorTransform;
  7639. _classCallCheck(this, JpegImage);
  7640. this._decodeTransform = decodeTransform;
  7641. this._colorTransform = colorTransform;
  7642. }
  7643. _createClass(JpegImage, [{
  7644. key: "parse",
  7645. value: function parse(data) {
  7646. var _ref2 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
  7647. _ref2$dnlScanLines = _ref2.dnlScanLines,
  7648. dnlScanLines = _ref2$dnlScanLines === void 0 ? null : _ref2$dnlScanLines;
  7649. function readDataBlock() {
  7650. var length = (0, _core_utils.readUint16)(data, offset);
  7651. offset += 2;
  7652. var endOffset = offset + length - 2;
  7653. var fileMarker = findNextFileMarker(data, endOffset, offset);
  7654. if (fileMarker && fileMarker.invalid) {
  7655. (0, _util.warn)("readDataBlock - incorrect length, current marker is: " + fileMarker.invalid);
  7656. endOffset = fileMarker.offset;
  7657. }
  7658. var array = data.subarray(offset, endOffset);
  7659. offset += array.length;
  7660. return array;
  7661. }
  7662. function prepareComponents(frame) {
  7663. var mcusPerLine = Math.ceil(frame.samplesPerLine / 8 / frame.maxH);
  7664. var mcusPerColumn = Math.ceil(frame.scanLines / 8 / frame.maxV);
  7665. for (var i = 0, ii = frame.components.length; i < ii; i++) {
  7666. var component = frame.components[i];
  7667. var blocksPerLine = Math.ceil(Math.ceil(frame.samplesPerLine / 8) * component.h / frame.maxH);
  7668. var blocksPerColumn = Math.ceil(Math.ceil(frame.scanLines / 8) * component.v / frame.maxV);
  7669. var blocksPerLineForMcu = mcusPerLine * component.h;
  7670. var blocksPerColumnForMcu = mcusPerColumn * component.v;
  7671. var blocksBufferSize = 64 * blocksPerColumnForMcu * (blocksPerLineForMcu + 1);
  7672. component.blockData = new Int16Array(blocksBufferSize);
  7673. component.blocksPerLine = blocksPerLine;
  7674. component.blocksPerColumn = blocksPerColumn;
  7675. }
  7676. frame.mcusPerLine = mcusPerLine;
  7677. frame.mcusPerColumn = mcusPerColumn;
  7678. }
  7679. var offset = 0;
  7680. var jfif = null;
  7681. var adobe = null;
  7682. var frame, resetInterval;
  7683. var numSOSMarkers = 0;
  7684. var quantizationTables = [];
  7685. var huffmanTablesAC = [],
  7686. huffmanTablesDC = [];
  7687. var fileMarker = (0, _core_utils.readUint16)(data, offset);
  7688. offset += 2;
  7689. if (fileMarker !== 0xffd8) {
  7690. throw new JpegError("SOI not found");
  7691. }
  7692. fileMarker = (0, _core_utils.readUint16)(data, offset);
  7693. offset += 2;
  7694. markerLoop: while (fileMarker !== 0xffd9) {
  7695. var i = void 0,
  7696. j = void 0,
  7697. l = void 0;
  7698. switch (fileMarker) {
  7699. case 0xffe0:
  7700. case 0xffe1:
  7701. case 0xffe2:
  7702. case 0xffe3:
  7703. case 0xffe4:
  7704. case 0xffe5:
  7705. case 0xffe6:
  7706. case 0xffe7:
  7707. case 0xffe8:
  7708. case 0xffe9:
  7709. case 0xffea:
  7710. case 0xffeb:
  7711. case 0xffec:
  7712. case 0xffed:
  7713. case 0xffee:
  7714. case 0xffef:
  7715. case 0xfffe:
  7716. var appData = readDataBlock();
  7717. if (fileMarker === 0xffe0) {
  7718. if (appData[0] === 0x4a && appData[1] === 0x46 && appData[2] === 0x49 && appData[3] === 0x46 && appData[4] === 0) {
  7719. jfif = {
  7720. version: {
  7721. major: appData[5],
  7722. minor: appData[6]
  7723. },
  7724. densityUnits: appData[7],
  7725. xDensity: appData[8] << 8 | appData[9],
  7726. yDensity: appData[10] << 8 | appData[11],
  7727. thumbWidth: appData[12],
  7728. thumbHeight: appData[13],
  7729. thumbData: appData.subarray(14, 14 + 3 * appData[12] * appData[13])
  7730. };
  7731. }
  7732. }
  7733. if (fileMarker === 0xffee) {
  7734. if (appData[0] === 0x41 && appData[1] === 0x64 && appData[2] === 0x6f && appData[3] === 0x62 && appData[4] === 0x65) {
  7735. adobe = {
  7736. version: appData[5] << 8 | appData[6],
  7737. flags0: appData[7] << 8 | appData[8],
  7738. flags1: appData[9] << 8 | appData[10],
  7739. transformCode: appData[11]
  7740. };
  7741. }
  7742. }
  7743. break;
  7744. case 0xffdb:
  7745. var quantizationTablesLength = (0, _core_utils.readUint16)(data, offset);
  7746. offset += 2;
  7747. var quantizationTablesEnd = quantizationTablesLength + offset - 2;
  7748. var z = void 0;
  7749. while (offset < quantizationTablesEnd) {
  7750. var quantizationTableSpec = data[offset++];
  7751. var tableData = new Uint16Array(64);
  7752. if (quantizationTableSpec >> 4 === 0) {
  7753. for (j = 0; j < 64; j++) {
  7754. z = dctZigZag[j];
  7755. tableData[z] = data[offset++];
  7756. }
  7757. } else if (quantizationTableSpec >> 4 === 1) {
  7758. for (j = 0; j < 64; j++) {
  7759. z = dctZigZag[j];
  7760. tableData[z] = (0, _core_utils.readUint16)(data, offset);
  7761. offset += 2;
  7762. }
  7763. } else {
  7764. throw new JpegError("DQT - invalid table spec");
  7765. }
  7766. quantizationTables[quantizationTableSpec & 15] = tableData;
  7767. }
  7768. break;
  7769. case 0xffc0:
  7770. case 0xffc1:
  7771. case 0xffc2:
  7772. if (frame) {
  7773. throw new JpegError("Only single frame JPEGs supported");
  7774. }
  7775. offset += 2;
  7776. frame = {};
  7777. frame.extended = fileMarker === 0xffc1;
  7778. frame.progressive = fileMarker === 0xffc2;
  7779. frame.precision = data[offset++];
  7780. var sofScanLines = (0, _core_utils.readUint16)(data, offset);
  7781. offset += 2;
  7782. frame.scanLines = dnlScanLines || sofScanLines;
  7783. frame.samplesPerLine = (0, _core_utils.readUint16)(data, offset);
  7784. offset += 2;
  7785. frame.components = [];
  7786. frame.componentIds = {};
  7787. var componentsCount = data[offset++];
  7788. var maxH = 0,
  7789. maxV = 0;
  7790. for (i = 0; i < componentsCount; i++) {
  7791. var componentId = data[offset];
  7792. var h = data[offset + 1] >> 4;
  7793. var v = data[offset + 1] & 15;
  7794. if (maxH < h) {
  7795. maxH = h;
  7796. }
  7797. if (maxV < v) {
  7798. maxV = v;
  7799. }
  7800. var qId = data[offset + 2];
  7801. l = frame.components.push({
  7802. h: h,
  7803. v: v,
  7804. quantizationId: qId,
  7805. quantizationTable: null
  7806. });
  7807. frame.componentIds[componentId] = l - 1;
  7808. offset += 3;
  7809. }
  7810. frame.maxH = maxH;
  7811. frame.maxV = maxV;
  7812. prepareComponents(frame);
  7813. break;
  7814. case 0xffc4:
  7815. var huffmanLength = (0, _core_utils.readUint16)(data, offset);
  7816. offset += 2;
  7817. for (i = 2; i < huffmanLength;) {
  7818. var huffmanTableSpec = data[offset++];
  7819. var codeLengths = new Uint8Array(16);
  7820. var codeLengthSum = 0;
  7821. for (j = 0; j < 16; j++, offset++) {
  7822. codeLengthSum += codeLengths[j] = data[offset];
  7823. }
  7824. var huffmanValues = new Uint8Array(codeLengthSum);
  7825. for (j = 0; j < codeLengthSum; j++, offset++) {
  7826. huffmanValues[j] = data[offset];
  7827. }
  7828. i += 17 + codeLengthSum;
  7829. (huffmanTableSpec >> 4 === 0 ? huffmanTablesDC : huffmanTablesAC)[huffmanTableSpec & 15] = buildHuffmanTable(codeLengths, huffmanValues);
  7830. }
  7831. break;
  7832. case 0xffdd:
  7833. offset += 2;
  7834. resetInterval = (0, _core_utils.readUint16)(data, offset);
  7835. offset += 2;
  7836. break;
  7837. case 0xffda:
  7838. var parseDNLMarker = ++numSOSMarkers === 1 && !dnlScanLines;
  7839. offset += 2;
  7840. var selectorsCount = data[offset++],
  7841. components = [];
  7842. for (i = 0; i < selectorsCount; i++) {
  7843. var index = data[offset++];
  7844. var componentIndex = frame.componentIds[index];
  7845. var component = frame.components[componentIndex];
  7846. component.index = index;
  7847. var tableSpec = data[offset++];
  7848. component.huffmanTableDC = huffmanTablesDC[tableSpec >> 4];
  7849. component.huffmanTableAC = huffmanTablesAC[tableSpec & 15];
  7850. components.push(component);
  7851. }
  7852. var spectralStart = data[offset++],
  7853. spectralEnd = data[offset++],
  7854. successiveApproximation = data[offset++];
  7855. try {
  7856. var processed = decodeScan(data, offset, frame, components, resetInterval, spectralStart, spectralEnd, successiveApproximation >> 4, successiveApproximation & 15, parseDNLMarker);
  7857. offset += processed;
  7858. } catch (ex) {
  7859. if (ex instanceof DNLMarkerError) {
  7860. (0, _util.warn)("".concat(ex.message, " -- attempting to re-parse the JPEG image."));
  7861. return this.parse(data, {
  7862. dnlScanLines: ex.scanLines
  7863. });
  7864. } else if (ex instanceof EOIMarkerError) {
  7865. (0, _util.warn)("".concat(ex.message, " -- ignoring the rest of the image data."));
  7866. break markerLoop;
  7867. }
  7868. throw ex;
  7869. }
  7870. break;
  7871. case 0xffdc:
  7872. offset += 4;
  7873. break;
  7874. case 0xffff:
  7875. if (data[offset] !== 0xff) {
  7876. offset--;
  7877. }
  7878. break;
  7879. default:
  7880. var nextFileMarker = findNextFileMarker(data, offset - 2, offset - 3);
  7881. if (nextFileMarker && nextFileMarker.invalid) {
  7882. (0, _util.warn)("JpegImage.parse - unexpected data, current marker is: " + nextFileMarker.invalid);
  7883. offset = nextFileMarker.offset;
  7884. break;
  7885. }
  7886. if (!nextFileMarker || offset >= data.length - 1) {
  7887. (0, _util.warn)("JpegImage.parse - reached the end of the image data " + "without finding an EOI marker (0xFFD9).");
  7888. break markerLoop;
  7889. }
  7890. throw new JpegError("JpegImage.parse - unknown marker: " + fileMarker.toString(16));
  7891. }
  7892. fileMarker = (0, _core_utils.readUint16)(data, offset);
  7893. offset += 2;
  7894. }
  7895. this.width = frame.samplesPerLine;
  7896. this.height = frame.scanLines;
  7897. this.jfif = jfif;
  7898. this.adobe = adobe;
  7899. this.components = [];
  7900. for (var _i = 0, ii = frame.components.length; _i < ii; _i++) {
  7901. var _component = frame.components[_i];
  7902. var quantizationTable = quantizationTables[_component.quantizationId];
  7903. if (quantizationTable) {
  7904. _component.quantizationTable = quantizationTable;
  7905. }
  7906. this.components.push({
  7907. index: _component.index,
  7908. output: buildComponentData(frame, _component),
  7909. scaleX: _component.h / frame.maxH,
  7910. scaleY: _component.v / frame.maxV,
  7911. blocksPerLine: _component.blocksPerLine,
  7912. blocksPerColumn: _component.blocksPerColumn
  7913. });
  7914. }
  7915. this.numComponents = this.components.length;
  7916. return undefined;
  7917. }
  7918. }, {
  7919. key: "_getLinearizedBlockData",
  7920. value: function _getLinearizedBlockData(width, height) {
  7921. var isSourcePDF = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  7922. var scaleX = this.width / width,
  7923. scaleY = this.height / height;
  7924. var component, componentScaleX, componentScaleY, blocksPerScanline;
  7925. var x, y, i, j, k;
  7926. var index;
  7927. var offset = 0;
  7928. var output;
  7929. var numComponents = this.components.length;
  7930. var dataLength = width * height * numComponents;
  7931. var data = new Uint8ClampedArray(dataLength);
  7932. var xScaleBlockOffset = new Uint32Array(width);
  7933. var mask3LSB = 0xfffffff8;
  7934. var lastComponentScaleX;
  7935. for (i = 0; i < numComponents; i++) {
  7936. component = this.components[i];
  7937. componentScaleX = component.scaleX * scaleX;
  7938. componentScaleY = component.scaleY * scaleY;
  7939. offset = i;
  7940. output = component.output;
  7941. blocksPerScanline = component.blocksPerLine + 1 << 3;
  7942. if (componentScaleX !== lastComponentScaleX) {
  7943. for (x = 0; x < width; x++) {
  7944. j = 0 | x * componentScaleX;
  7945. xScaleBlockOffset[x] = (j & mask3LSB) << 3 | j & 7;
  7946. }
  7947. lastComponentScaleX = componentScaleX;
  7948. }
  7949. for (y = 0; y < height; y++) {
  7950. j = 0 | y * componentScaleY;
  7951. index = blocksPerScanline * (j & mask3LSB) | (j & 7) << 3;
  7952. for (x = 0; x < width; x++) {
  7953. data[offset] = output[index + xScaleBlockOffset[x]];
  7954. offset += numComponents;
  7955. }
  7956. }
  7957. }
  7958. var transform = this._decodeTransform;
  7959. if (!isSourcePDF && numComponents === 4 && !transform) {
  7960. transform = new Int32Array([-256, 255, -256, 255, -256, 255, -256, 255]);
  7961. }
  7962. if (transform) {
  7963. for (i = 0; i < dataLength;) {
  7964. for (j = 0, k = 0; j < numComponents; j++, i++, k += 2) {
  7965. data[i] = (data[i] * transform[k] >> 8) + transform[k + 1];
  7966. }
  7967. }
  7968. }
  7969. return data;
  7970. }
  7971. }, {
  7972. key: "_isColorConversionNeeded",
  7973. get: function get() {
  7974. if (this.adobe) {
  7975. return !!this.adobe.transformCode;
  7976. }
  7977. if (this.numComponents === 3) {
  7978. if (this._colorTransform === 0) {
  7979. return false;
  7980. } else if (this.components[0].index === 0x52 && this.components[1].index === 0x47 && this.components[2].index === 0x42) {
  7981. return false;
  7982. }
  7983. return true;
  7984. }
  7985. if (this._colorTransform === 1) {
  7986. return true;
  7987. }
  7988. return false;
  7989. }
  7990. }, {
  7991. key: "_convertYccToRgb",
  7992. value: function _convertYccToRgb(data) {
  7993. var Y, Cb, Cr;
  7994. for (var i = 0, length = data.length; i < length; i += 3) {
  7995. Y = data[i];
  7996. Cb = data[i + 1];
  7997. Cr = data[i + 2];
  7998. data[i] = Y - 179.456 + 1.402 * Cr;
  7999. data[i + 1] = Y + 135.459 - 0.344 * Cb - 0.714 * Cr;
  8000. data[i + 2] = Y - 226.816 + 1.772 * Cb;
  8001. }
  8002. return data;
  8003. }
  8004. }, {
  8005. key: "_convertYcckToRgb",
  8006. value: function _convertYcckToRgb(data) {
  8007. var Y, Cb, Cr, k;
  8008. var offset = 0;
  8009. for (var i = 0, length = data.length; i < length; i += 4) {
  8010. Y = data[i];
  8011. Cb = data[i + 1];
  8012. Cr = data[i + 2];
  8013. k = data[i + 3];
  8014. data[offset++] = -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);
  8015. data[offset++] = 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);
  8016. data[offset++] = -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);
  8017. }
  8018. return data.subarray(0, offset);
  8019. }
  8020. }, {
  8021. key: "_convertYcckToCmyk",
  8022. value: function _convertYcckToCmyk(data) {
  8023. var Y, Cb, Cr;
  8024. for (var i = 0, length = data.length; i < length; i += 4) {
  8025. Y = data[i];
  8026. Cb = data[i + 1];
  8027. Cr = data[i + 2];
  8028. data[i] = 434.456 - Y - 1.402 * Cr;
  8029. data[i + 1] = 119.541 - Y + 0.344 * Cb + 0.714 * Cr;
  8030. data[i + 2] = 481.816 - Y - 1.772 * Cb;
  8031. }
  8032. return data;
  8033. }
  8034. }, {
  8035. key: "_convertCmykToRgb",
  8036. value: function _convertCmykToRgb(data) {
  8037. var c, m, y, k;
  8038. var offset = 0;
  8039. for (var i = 0, length = data.length; i < length; i += 4) {
  8040. c = data[i];
  8041. m = data[i + 1];
  8042. y = data[i + 2];
  8043. k = data[i + 3];
  8044. data[offset++] = 255 + c * (-0.00006747147073602441 * c + 0.0008379262121013727 * m + 0.0002894718188643294 * y + 0.003264231057537806 * k - 1.1185611867203937) + m * (0.000026374107616089405 * m - 0.00008626949158638572 * y - 0.0002748769067499491 * k - 0.02155688794978967) + y * (-0.00003878099212869363 * y - 0.0003267808279485286 * k + 0.0686742238595345) - k * (0.0003361971776183937 * k + 0.7430659151342254);
  8045. data[offset++] = 255 + c * (0.00013596372813588848 * c + 0.000924537132573585 * m + 0.00010567359618683593 * y + 0.0004791864687436512 * k - 0.3109689587515875) + m * (-0.00023545346108370344 * m + 0.0002702845253534714 * y + 0.0020200308977307156 * k - 0.7488052167015494) + y * (0.00006834815998235662 * y + 0.00015168452363460973 * k - 0.09751927774728933) - k * (0.00031891311758832814 * k + 0.7364883807733168);
  8046. data[offset++] = 255 + c * (0.000013598650411385307 * c + 0.00012423956175490851 * m + 0.0004751985097583589 * y - 0.0000036729317476630422 * k - 0.05562186980264034) + m * (0.00016141380598724676 * m + 0.0009692239130725186 * y + 0.0007782692450036253 * k - 0.44015232367526463) + y * (5.068882914068769e-7 * y + 0.0017778369011375071 * k - 0.7591454649749609) - k * (0.0003435319965105553 * k + 0.7063770186160144);
  8047. }
  8048. return data.subarray(0, offset);
  8049. }
  8050. }, {
  8051. key: "getData",
  8052. value: function getData(_ref3) {
  8053. var width = _ref3.width,
  8054. height = _ref3.height,
  8055. _ref3$forceRGB = _ref3.forceRGB,
  8056. forceRGB = _ref3$forceRGB === void 0 ? false : _ref3$forceRGB,
  8057. _ref3$isSourcePDF = _ref3.isSourcePDF,
  8058. isSourcePDF = _ref3$isSourcePDF === void 0 ? false : _ref3$isSourcePDF;
  8059. if (this.numComponents > 4) {
  8060. throw new JpegError("Unsupported color mode");
  8061. }
  8062. var data = this._getLinearizedBlockData(width, height, isSourcePDF);
  8063. if (this.numComponents === 1 && forceRGB) {
  8064. var dataLength = data.length;
  8065. var rgbData = new Uint8ClampedArray(dataLength * 3);
  8066. var offset = 0;
  8067. for (var i = 0; i < dataLength; i++) {
  8068. var grayColor = data[i];
  8069. rgbData[offset++] = grayColor;
  8070. rgbData[offset++] = grayColor;
  8071. rgbData[offset++] = grayColor;
  8072. }
  8073. return rgbData;
  8074. } else if (this.numComponents === 3 && this._isColorConversionNeeded) {
  8075. return this._convertYccToRgb(data);
  8076. } else if (this.numComponents === 4) {
  8077. if (this._isColorConversionNeeded) {
  8078. if (forceRGB) {
  8079. return this._convertYcckToRgb(data);
  8080. }
  8081. return this._convertYcckToCmyk(data);
  8082. } else if (forceRGB) {
  8083. return this._convertCmykToRgb(data);
  8084. }
  8085. }
  8086. return data;
  8087. }
  8088. }]);
  8089. return JpegImage;
  8090. }();
  8091. exports.JpegImage = JpegImage;
  8092. /***/ }),
  8093. /* 95 */
  8094. /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  8095. "use strict";
  8096. function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  8097. Object.defineProperty(exports, "__esModule", ({
  8098. value: true
  8099. }));
  8100. exports.JpxImage = void 0;
  8101. var _util = __w_pdfjs_require__(1);
  8102. var _core_utils = __w_pdfjs_require__(87);
  8103. var _arithmetic_decoder = __w_pdfjs_require__(92);
  8104. function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  8105. function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  8106. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  8107. function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  8108. function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  8109. function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  8110. function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
  8111. function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  8112. function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
  8113. function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  8114. var JpxError = /*#__PURE__*/function (_BaseException) {
  8115. _inherits(JpxError, _BaseException);
  8116. var _super = _createSuper(JpxError);
  8117. function JpxError(msg) {
  8118. _classCallCheck(this, JpxError);
  8119. return _super.call(this, "JPX error: ".concat(msg), "JpxError");
  8120. }
  8121. return JpxError;
  8122. }(_util.BaseException);
  8123. var SubbandsGainLog2 = {
  8124. LL: 0,
  8125. LH: 1,
  8126. HL: 1,
  8127. HH: 2
  8128. };
  8129. var JpxImage = /*#__PURE__*/function () {
  8130. function JpxImage() {
  8131. _classCallCheck(this, JpxImage);
  8132. this.failOnCorruptedImage = false;
  8133. }
  8134. _createClass(JpxImage, [{
  8135. key: "parse",
  8136. value: function parse(data) {
  8137. var head = (0, _core_utils.readUint16)(data, 0);
  8138. if (head === 0xff4f) {
  8139. this.parseCodestream(data, 0, data.length);
  8140. return;
  8141. }
  8142. var length = data.length;
  8143. var position = 0;
  8144. while (position < length) {
  8145. var headerSize = 8;
  8146. var lbox = (0, _core_utils.readUint32)(data, position);
  8147. var tbox = (0, _core_utils.readUint32)(data, position + 4);
  8148. position += headerSize;
  8149. if (lbox === 1) {
  8150. lbox = (0, _core_utils.readUint32)(data, position) * 4294967296 + (0, _core_utils.readUint32)(data, position + 4);
  8151. position += 8;
  8152. headerSize += 8;
  8153. }
  8154. if (lbox === 0) {
  8155. lbox = length - position + headerSize;
  8156. }
  8157. if (lbox < headerSize) {
  8158. throw new JpxError("Invalid box field size");
  8159. }
  8160. var dataLength = lbox - headerSize;
  8161. var jumpDataLength = true;
  8162. switch (tbox) {
  8163. case 0x6a703268:
  8164. jumpDataLength = false;
  8165. break;
  8166. case 0x636f6c72:
  8167. var method = data[position];
  8168. if (method === 1) {
  8169. var colorspace = (0, _core_utils.readUint32)(data, position + 3);
  8170. switch (colorspace) {
  8171. case 16:
  8172. case 17:
  8173. case 18:
  8174. break;
  8175. default:
  8176. (0, _util.warn)("Unknown colorspace " + colorspace);
  8177. break;
  8178. }
  8179. } else if (method === 2) {
  8180. (0, _util.info)("ICC profile not supported");
  8181. }
  8182. break;
  8183. case 0x6a703263:
  8184. this.parseCodestream(data, position, position + dataLength);
  8185. break;
  8186. case 0x6a502020:
  8187. if ((0, _core_utils.readUint32)(data, position) !== 0x0d0a870a) {
  8188. (0, _util.warn)("Invalid JP2 signature");
  8189. }
  8190. break;
  8191. case 0x6a501a1a:
  8192. case 0x66747970:
  8193. case 0x72726571:
  8194. case 0x72657320:
  8195. case 0x69686472:
  8196. break;
  8197. default:
  8198. var headerType = String.fromCharCode(tbox >> 24 & 0xff, tbox >> 16 & 0xff, tbox >> 8 & 0xff, tbox & 0xff);
  8199. (0, _util.warn)("Unsupported header type ".concat(tbox, " (").concat(headerType, ")."));
  8200. break;
  8201. }
  8202. if (jumpDataLength) {
  8203. position += dataLength;
  8204. }
  8205. }
  8206. }
  8207. }, {
  8208. key: "parseImageProperties",
  8209. value: function parseImageProperties(stream) {
  8210. var newByte = stream.getByte();
  8211. while (newByte >= 0) {
  8212. var oldByte = newByte;
  8213. newByte = stream.getByte();
  8214. var code = oldByte << 8 | newByte;
  8215. if (code === 0xff51) {
  8216. stream.skip(4);
  8217. var Xsiz = stream.getInt32() >>> 0;
  8218. var Ysiz = stream.getInt32() >>> 0;
  8219. var XOsiz = stream.getInt32() >>> 0;
  8220. var YOsiz = stream.getInt32() >>> 0;
  8221. stream.skip(16);
  8222. var Csiz = stream.getUint16();
  8223. this.width = Xsiz - XOsiz;
  8224. this.height = Ysiz - YOsiz;
  8225. this.componentsCount = Csiz;
  8226. this.bitsPerComponent = 8;
  8227. return;
  8228. }
  8229. }
  8230. throw new JpxError("No size marker found in JPX stream");
  8231. }
  8232. }, {
  8233. key: "parseCodestream",
  8234. value: function parseCodestream(data, start, end) {
  8235. var context = {};
  8236. var doNotRecover = false;
  8237. try {
  8238. var position = start;
  8239. while (position + 1 < end) {
  8240. var code = (0, _core_utils.readUint16)(data, position);
  8241. position += 2;
  8242. var length = 0,
  8243. j = void 0,
  8244. sqcd = void 0,
  8245. spqcds = void 0,
  8246. spqcdSize = void 0,
  8247. scalarExpounded = void 0,
  8248. tile = void 0;
  8249. switch (code) {
  8250. case 0xff4f:
  8251. context.mainHeader = true;
  8252. break;
  8253. case 0xffd9:
  8254. break;
  8255. case 0xff51:
  8256. length = (0, _core_utils.readUint16)(data, position);
  8257. var siz = {};
  8258. siz.Xsiz = (0, _core_utils.readUint32)(data, position + 4);
  8259. siz.Ysiz = (0, _core_utils.readUint32)(data, position + 8);
  8260. siz.XOsiz = (0, _core_utils.readUint32)(data, position + 12);
  8261. siz.YOsiz = (0, _core_utils.readUint32)(data, position + 16);
  8262. siz.XTsiz = (0, _core_utils.readUint32)(data, position + 20);
  8263. siz.YTsiz = (0, _core_utils.readUint32)(data, position + 24);
  8264. siz.XTOsiz = (0, _core_utils.readUint32)(data, position + 28);
  8265. siz.YTOsiz = (0, _core_utils.readUint32)(data, position + 32);
  8266. var componentsCount = (0, _core_utils.readUint16)(data, position + 36);
  8267. siz.Csiz = componentsCount;
  8268. var components = [];
  8269. j = position + 38;
  8270. for (var i = 0; i < componentsCount; i++) {
  8271. var component = {
  8272. precision: (data[j] & 0x7f) + 1,
  8273. isSigned: !!(data[j] & 0x80),
  8274. XRsiz: data[j + 1],
  8275. YRsiz: data[j + 2]
  8276. };
  8277. j += 3;
  8278. calculateComponentDimensions(component, siz);
  8279. components.push(component);
  8280. }
  8281. context.SIZ = siz;
  8282. context.components = components;
  8283. calculateTileGrids(context, components);
  8284. context.QCC = [];
  8285. context.COC = [];
  8286. break;
  8287. case 0xff5c:
  8288. length = (0, _core_utils.readUint16)(data, position);
  8289. var qcd = {};
  8290. j = position + 2;
  8291. sqcd = data[j++];
  8292. switch (sqcd & 0x1f) {
  8293. case 0:
  8294. spqcdSize = 8;
  8295. scalarExpounded = true;
  8296. break;
  8297. case 1:
  8298. spqcdSize = 16;
  8299. scalarExpounded = false;
  8300. break;
  8301. case 2:
  8302. spqcdSize = 16;
  8303. scalarExpounded = true;
  8304. break;
  8305. default:
  8306. throw new Error("Invalid SQcd value " + sqcd);
  8307. }
  8308. qcd.noQuantization = spqcdSize === 8;
  8309. qcd.scalarExpounded = scalarExpounded;
  8310. qcd.guardBits = sqcd >> 5;
  8311. spqcds = [];
  8312. while (j < length + position) {
  8313. var spqcd = {};
  8314. if (spqcdSize === 8) {
  8315. spqcd.epsilon = data[j++] >> 3;
  8316. spqcd.mu = 0;
  8317. } else {
  8318. spqcd.epsilon = data[j] >> 3;
  8319. spqcd.mu = (data[j] & 0x7) << 8 | data[j + 1];
  8320. j += 2;
  8321. }
  8322. spqcds.push(spqcd);
  8323. }
  8324. qcd.SPqcds = spqcds;
  8325. if (context.mainHeader) {
  8326. context.QCD = qcd;
  8327. } else {
  8328. context.currentTile.QCD = qcd;
  8329. context.currentTile.QCC = [];
  8330. }
  8331. break;
  8332. case 0xff5d:
  8333. length = (0, _core_utils.readUint16)(data, position);
  8334. var qcc = {};
  8335. j = position + 2;
  8336. var cqcc = void 0;
  8337. if (context.SIZ.Csiz < 257) {
  8338. cqcc = data[j++];
  8339. } else {
  8340. cqcc = (0, _core_utils.readUint16)(data, j);
  8341. j += 2;
  8342. }
  8343. sqcd = data[j++];
  8344. switch (sqcd & 0x1f) {
  8345. case 0:
  8346. spqcdSize = 8;
  8347. scalarExpounded = true;
  8348. break;
  8349. case 1:
  8350. spqcdSize = 16;
  8351. scalarExpounded = false;
  8352. break;
  8353. case 2:
  8354. spqcdSize = 16;
  8355. scalarExpounded = true;
  8356. break;
  8357. default:
  8358. throw new Error("Invalid SQcd value " + sqcd);
  8359. }
  8360. qcc.noQuantization = spqcdSize === 8;
  8361. qcc.scalarExpounded = scalarExpounded;
  8362. qcc.guardBits = sqcd >> 5;
  8363. spqcds = [];
  8364. while (j < length + position) {
  8365. var _spqcd = {};
  8366. if (spqcdSize === 8) {
  8367. _spqcd.epsilon = data[j++] >> 3;
  8368. _spqcd.mu = 0;
  8369. } else {
  8370. _spqcd.epsilon = data[j] >> 3;
  8371. _spqcd.mu = (data[j] & 0x7) << 8 | data[j + 1];
  8372. j += 2;
  8373. }
  8374. spqcds.push(_spqcd);
  8375. }
  8376. qcc.SPqcds = spqcds;
  8377. if (context.mainHeader) {
  8378. context.QCC[cqcc] = qcc;
  8379. } else {
  8380. context.currentTile.QCC[cqcc] = qcc;
  8381. }
  8382. break;
  8383. case 0xff52:
  8384. length = (0, _core_utils.readUint16)(data, position);
  8385. var cod = {};
  8386. j = position + 2;
  8387. var scod = data[j++];
  8388. cod.entropyCoderWithCustomPrecincts = !!(scod & 1);
  8389. cod.sopMarkerUsed = !!(scod & 2);
  8390. cod.ephMarkerUsed = !!(scod & 4);
  8391. cod.progressionOrder = data[j++];
  8392. cod.layersCount = (0, _core_utils.readUint16)(data, j);
  8393. j += 2;
  8394. cod.multipleComponentTransform = data[j++];
  8395. cod.decompositionLevelsCount = data[j++];
  8396. cod.xcb = (data[j++] & 0xf) + 2;
  8397. cod.ycb = (data[j++] & 0xf) + 2;
  8398. var blockStyle = data[j++];
  8399. cod.selectiveArithmeticCodingBypass = !!(blockStyle & 1);
  8400. cod.resetContextProbabilities = !!(blockStyle & 2);
  8401. cod.terminationOnEachCodingPass = !!(blockStyle & 4);
  8402. cod.verticallyStripe = !!(blockStyle & 8);
  8403. cod.predictableTermination = !!(blockStyle & 16);
  8404. cod.segmentationSymbolUsed = !!(blockStyle & 32);
  8405. cod.reversibleTransformation = data[j++];
  8406. if (cod.entropyCoderWithCustomPrecincts) {
  8407. var precinctsSizes = [];
  8408. while (j < length + position) {
  8409. var precinctsSize = data[j++];
  8410. precinctsSizes.push({
  8411. PPx: precinctsSize & 0xf,
  8412. PPy: precinctsSize >> 4
  8413. });
  8414. }
  8415. cod.precinctsSizes = precinctsSizes;
  8416. }
  8417. var unsupported = [];
  8418. if (cod.selectiveArithmeticCodingBypass) {
  8419. unsupported.push("selectiveArithmeticCodingBypass");
  8420. }
  8421. if (cod.resetContextProbabilities) {
  8422. unsupported.push("resetContextProbabilities");
  8423. }
  8424. if (cod.terminationOnEachCodingPass) {
  8425. unsupported.push("terminationOnEachCodingPass");
  8426. }
  8427. if (cod.verticallyStripe) {
  8428. unsupported.push("verticallyStripe");
  8429. }
  8430. if (cod.predictableTermination) {
  8431. unsupported.push("predictableTermination");
  8432. }
  8433. if (unsupported.length > 0) {
  8434. doNotRecover = true;
  8435. (0, _util.warn)("JPX: Unsupported COD options (".concat(unsupported.join(", "), ")."));
  8436. }
  8437. if (context.mainHeader) {
  8438. context.COD = cod;
  8439. } else {
  8440. context.currentTile.COD = cod;
  8441. context.currentTile.COC = [];
  8442. }
  8443. break;
  8444. case 0xff90:
  8445. length = (0, _core_utils.readUint16)(data, position);
  8446. tile = {};
  8447. tile.index = (0, _core_utils.readUint16)(data, position + 2);
  8448. tile.length = (0, _core_utils.readUint32)(data, position + 4);
  8449. tile.dataEnd = tile.length + position - 2;
  8450. tile.partIndex = data[position + 8];
  8451. tile.partsCount = data[position + 9];
  8452. context.mainHeader = false;
  8453. if (tile.partIndex === 0) {
  8454. tile.COD = context.COD;
  8455. tile.COC = context.COC.slice(0);
  8456. tile.QCD = context.QCD;
  8457. tile.QCC = context.QCC.slice(0);
  8458. }
  8459. context.currentTile = tile;
  8460. break;
  8461. case 0xff93:
  8462. tile = context.currentTile;
  8463. if (tile.partIndex === 0) {
  8464. initializeTile(context, tile.index);
  8465. buildPackets(context);
  8466. }
  8467. length = tile.dataEnd - position;
  8468. parseTilePackets(context, data, position, length);
  8469. break;
  8470. case 0xff53:
  8471. (0, _util.warn)("JPX: Codestream code 0xFF53 (COC) is not implemented.");
  8472. case 0xff55:
  8473. case 0xff57:
  8474. case 0xff58:
  8475. case 0xff64:
  8476. length = (0, _core_utils.readUint16)(data, position);
  8477. break;
  8478. default:
  8479. throw new Error("Unknown codestream code: " + code.toString(16));
  8480. }
  8481. position += length;
  8482. }
  8483. } catch (e) {
  8484. if (doNotRecover || this.failOnCorruptedImage) {
  8485. throw new JpxError(e.message);
  8486. } else {
  8487. (0, _util.warn)("JPX: Trying to recover from: \"".concat(e.message, "\"."));
  8488. }
  8489. }
  8490. this.tiles = transformComponents(context);
  8491. this.width = context.SIZ.Xsiz - context.SIZ.XOsiz;
  8492. this.height = context.SIZ.Ysiz - context.SIZ.YOsiz;
  8493. this.componentsCount = context.SIZ.Csiz;
  8494. }
  8495. }]);
  8496. return JpxImage;
  8497. }();
  8498. exports.JpxImage = JpxImage;
  8499. function calculateComponentDimensions(component, siz) {
  8500. component.x0 = Math.ceil(siz.XOsiz / component.XRsiz);
  8501. component.x1 = Math.ceil(siz.Xsiz / component.XRsiz);
  8502. component.y0 = Math.ceil(siz.YOsiz / component.YRsiz);
  8503. component.y1 = Math.ceil(siz.Ysiz / component.YRsiz);
  8504. component.width = component.x1 - component.x0;
  8505. component.height = component.y1 - component.y0;
  8506. }
  8507. function calculateTileGrids(context, components) {
  8508. var siz = context.SIZ;
  8509. var tiles = [];
  8510. var tile;
  8511. var numXtiles = Math.ceil((siz.Xsiz - siz.XTOsiz) / siz.XTsiz);
  8512. var numYtiles = Math.ceil((siz.Ysiz - siz.YTOsiz) / siz.YTsiz);
  8513. for (var q = 0; q < numYtiles; q++) {
  8514. for (var p = 0; p < numXtiles; p++) {
  8515. tile = {};
  8516. tile.tx0 = Math.max(siz.XTOsiz + p * siz.XTsiz, siz.XOsiz);
  8517. tile.ty0 = Math.max(siz.YTOsiz + q * siz.YTsiz, siz.YOsiz);
  8518. tile.tx1 = Math.min(siz.XTOsiz + (p + 1) * siz.XTsiz, siz.Xsiz);
  8519. tile.ty1 = Math.min(siz.YTOsiz + (q + 1) * siz.YTsiz, siz.Ysiz);
  8520. tile.width = tile.tx1 - tile.tx0;
  8521. tile.height = tile.ty1 - tile.ty0;
  8522. tile.components = [];
  8523. tiles.push(tile);
  8524. }
  8525. }
  8526. context.tiles = tiles;
  8527. var componentsCount = siz.Csiz;
  8528. for (var i = 0, ii = componentsCount; i < ii; i++) {
  8529. var component = components[i];
  8530. for (var j = 0, jj = tiles.length; j < jj; j++) {
  8531. var tileComponent = {};
  8532. tile = tiles[j];
  8533. tileComponent.tcx0 = Math.ceil(tile.tx0 / component.XRsiz);
  8534. tileComponent.tcy0 = Math.ceil(tile.ty0 / component.YRsiz);
  8535. tileComponent.tcx1 = Math.ceil(tile.tx1 / component.XRsiz);
  8536. tileComponent.tcy1 = Math.ceil(tile.ty1 / component.YRsiz);
  8537. tileComponent.width = tileComponent.tcx1 - tileComponent.tcx0;
  8538. tileComponent.height = tileComponent.tcy1 - tileComponent.tcy0;
  8539. tile.components[i] = tileComponent;
  8540. }
  8541. }
  8542. }
  8543. function getBlocksDimensions(context, component, r) {
  8544. var codOrCoc = component.codingStyleParameters;
  8545. var result = {};
  8546. if (!codOrCoc.entropyCoderWithCustomPrecincts) {
  8547. result.PPx = 15;
  8548. result.PPy = 15;
  8549. } else {
  8550. result.PPx = codOrCoc.precinctsSizes[r].PPx;
  8551. result.PPy = codOrCoc.precinctsSizes[r].PPy;
  8552. }
  8553. result.xcb_ = r > 0 ? Math.min(codOrCoc.xcb, result.PPx - 1) : Math.min(codOrCoc.xcb, result.PPx);
  8554. result.ycb_ = r > 0 ? Math.min(codOrCoc.ycb, result.PPy - 1) : Math.min(codOrCoc.ycb, result.PPy);
  8555. return result;
  8556. }
  8557. function buildPrecincts(context, resolution, dimensions) {
  8558. var precinctWidth = 1 << dimensions.PPx;
  8559. var precinctHeight = 1 << dimensions.PPy;
  8560. var isZeroRes = resolution.resLevel === 0;
  8561. var precinctWidthInSubband = 1 << dimensions.PPx + (isZeroRes ? 0 : -1);
  8562. var precinctHeightInSubband = 1 << dimensions.PPy + (isZeroRes ? 0 : -1);
  8563. var numprecinctswide = resolution.trx1 > resolution.trx0 ? Math.ceil(resolution.trx1 / precinctWidth) - Math.floor(resolution.trx0 / precinctWidth) : 0;
  8564. var numprecinctshigh = resolution.try1 > resolution.try0 ? Math.ceil(resolution.try1 / precinctHeight) - Math.floor(resolution.try0 / precinctHeight) : 0;
  8565. var numprecincts = numprecinctswide * numprecinctshigh;
  8566. resolution.precinctParameters = {
  8567. precinctWidth: precinctWidth,
  8568. precinctHeight: precinctHeight,
  8569. numprecinctswide: numprecinctswide,
  8570. numprecinctshigh: numprecinctshigh,
  8571. numprecincts: numprecincts,
  8572. precinctWidthInSubband: precinctWidthInSubband,
  8573. precinctHeightInSubband: precinctHeightInSubband
  8574. };
  8575. }
  8576. function buildCodeblocks(context, subband, dimensions) {
  8577. var xcb_ = dimensions.xcb_;
  8578. var ycb_ = dimensions.ycb_;
  8579. var codeblockWidth = 1 << xcb_;
  8580. var codeblockHeight = 1 << ycb_;
  8581. var cbx0 = subband.tbx0 >> xcb_;
  8582. var cby0 = subband.tby0 >> ycb_;
  8583. var cbx1 = subband.tbx1 + codeblockWidth - 1 >> xcb_;
  8584. var cby1 = subband.tby1 + codeblockHeight - 1 >> ycb_;
  8585. var precinctParameters = subband.resolution.precinctParameters;
  8586. var codeblocks = [];
  8587. var precincts = [];
  8588. var i, j, codeblock, precinctNumber;
  8589. for (j = cby0; j < cby1; j++) {
  8590. for (i = cbx0; i < cbx1; i++) {
  8591. codeblock = {
  8592. cbx: i,
  8593. cby: j,
  8594. tbx0: codeblockWidth * i,
  8595. tby0: codeblockHeight * j,
  8596. tbx1: codeblockWidth * (i + 1),
  8597. tby1: codeblockHeight * (j + 1)
  8598. };
  8599. codeblock.tbx0_ = Math.max(subband.tbx0, codeblock.tbx0);
  8600. codeblock.tby0_ = Math.max(subband.tby0, codeblock.tby0);
  8601. codeblock.tbx1_ = Math.min(subband.tbx1, codeblock.tbx1);
  8602. codeblock.tby1_ = Math.min(subband.tby1, codeblock.tby1);
  8603. var pi = Math.floor((codeblock.tbx0_ - subband.tbx0) / precinctParameters.precinctWidthInSubband);
  8604. var pj = Math.floor((codeblock.tby0_ - subband.tby0) / precinctParameters.precinctHeightInSubband);
  8605. precinctNumber = pi + pj * precinctParameters.numprecinctswide;
  8606. codeblock.precinctNumber = precinctNumber;
  8607. codeblock.subbandType = subband.type;
  8608. codeblock.Lblock = 3;
  8609. if (codeblock.tbx1_ <= codeblock.tbx0_ || codeblock.tby1_ <= codeblock.tby0_) {
  8610. continue;
  8611. }
  8612. codeblocks.push(codeblock);
  8613. var precinct = precincts[precinctNumber];
  8614. if (precinct !== undefined) {
  8615. if (i < precinct.cbxMin) {
  8616. precinct.cbxMin = i;
  8617. } else if (i > precinct.cbxMax) {
  8618. precinct.cbxMax = i;
  8619. }
  8620. if (j < precinct.cbyMin) {
  8621. precinct.cbxMin = j;
  8622. } else if (j > precinct.cbyMax) {
  8623. precinct.cbyMax = j;
  8624. }
  8625. } else {
  8626. precincts[precinctNumber] = precinct = {
  8627. cbxMin: i,
  8628. cbyMin: j,
  8629. cbxMax: i,
  8630. cbyMax: j
  8631. };
  8632. }
  8633. codeblock.precinct = precinct;
  8634. }
  8635. }
  8636. subband.codeblockParameters = {
  8637. codeblockWidth: xcb_,
  8638. codeblockHeight: ycb_,
  8639. numcodeblockwide: cbx1 - cbx0 + 1,
  8640. numcodeblockhigh: cby1 - cby0 + 1
  8641. };
  8642. subband.codeblocks = codeblocks;
  8643. subband.precincts = precincts;
  8644. }
  8645. function createPacket(resolution, precinctNumber, layerNumber) {
  8646. var precinctCodeblocks = [];
  8647. var subbands = resolution.subbands;
  8648. for (var i = 0, ii = subbands.length; i < ii; i++) {
  8649. var subband = subbands[i];
  8650. var codeblocks = subband.codeblocks;
  8651. for (var j = 0, jj = codeblocks.length; j < jj; j++) {
  8652. var codeblock = codeblocks[j];
  8653. if (codeblock.precinctNumber !== precinctNumber) {
  8654. continue;
  8655. }
  8656. precinctCodeblocks.push(codeblock);
  8657. }
  8658. }
  8659. return {
  8660. layerNumber: layerNumber,
  8661. codeblocks: precinctCodeblocks
  8662. };
  8663. }
  8664. function LayerResolutionComponentPositionIterator(context) {
  8665. var siz = context.SIZ;
  8666. var tileIndex = context.currentTile.index;
  8667. var tile = context.tiles[tileIndex];
  8668. var layersCount = tile.codingStyleDefaultParameters.layersCount;
  8669. var componentsCount = siz.Csiz;
  8670. var maxDecompositionLevelsCount = 0;
  8671. for (var q = 0; q < componentsCount; q++) {
  8672. maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, tile.components[q].codingStyleParameters.decompositionLevelsCount);
  8673. }
  8674. var l = 0,
  8675. r = 0,
  8676. i = 0,
  8677. k = 0;
  8678. this.nextPacket = function JpxImage_nextPacket() {
  8679. for (; l < layersCount; l++) {
  8680. for (; r <= maxDecompositionLevelsCount; r++) {
  8681. for (; i < componentsCount; i++) {
  8682. var component = tile.components[i];
  8683. if (r > component.codingStyleParameters.decompositionLevelsCount) {
  8684. continue;
  8685. }
  8686. var resolution = component.resolutions[r];
  8687. var numprecincts = resolution.precinctParameters.numprecincts;
  8688. for (; k < numprecincts;) {
  8689. var packet = createPacket(resolution, k, l);
  8690. k++;
  8691. return packet;
  8692. }
  8693. k = 0;
  8694. }
  8695. i = 0;
  8696. }
  8697. r = 0;
  8698. }
  8699. throw new JpxError("Out of packets");
  8700. };
  8701. }
  8702. function ResolutionLayerComponentPositionIterator(context) {
  8703. var siz = context.SIZ;
  8704. var tileIndex = context.currentTile.index;
  8705. var tile = context.tiles[tileIndex];
  8706. var layersCount = tile.codingStyleDefaultParameters.layersCount;
  8707. var componentsCount = siz.Csiz;
  8708. var maxDecompositionLevelsCount = 0;
  8709. for (var q = 0; q < componentsCount; q++) {
  8710. maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, tile.components[q].codingStyleParameters.decompositionLevelsCount);
  8711. }
  8712. var r = 0,
  8713. l = 0,
  8714. i = 0,
  8715. k = 0;
  8716. this.nextPacket = function JpxImage_nextPacket() {
  8717. for (; r <= maxDecompositionLevelsCount; r++) {
  8718. for (; l < layersCount; l++) {
  8719. for (; i < componentsCount; i++) {
  8720. var component = tile.components[i];
  8721. if (r > component.codingStyleParameters.decompositionLevelsCount) {
  8722. continue;
  8723. }
  8724. var resolution = component.resolutions[r];
  8725. var numprecincts = resolution.precinctParameters.numprecincts;
  8726. for (; k < numprecincts;) {
  8727. var packet = createPacket(resolution, k, l);
  8728. k++;
  8729. return packet;
  8730. }
  8731. k = 0;
  8732. }
  8733. i = 0;
  8734. }
  8735. l = 0;
  8736. }
  8737. throw new JpxError("Out of packets");
  8738. };
  8739. }
  8740. function ResolutionPositionComponentLayerIterator(context) {
  8741. var siz = context.SIZ;
  8742. var tileIndex = context.currentTile.index;
  8743. var tile = context.tiles[tileIndex];
  8744. var layersCount = tile.codingStyleDefaultParameters.layersCount;
  8745. var componentsCount = siz.Csiz;
  8746. var l, r, c, p;
  8747. var maxDecompositionLevelsCount = 0;
  8748. for (c = 0; c < componentsCount; c++) {
  8749. var component = tile.components[c];
  8750. maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, component.codingStyleParameters.decompositionLevelsCount);
  8751. }
  8752. var maxNumPrecinctsInLevel = new Int32Array(maxDecompositionLevelsCount + 1);
  8753. for (r = 0; r <= maxDecompositionLevelsCount; ++r) {
  8754. var maxNumPrecincts = 0;
  8755. for (c = 0; c < componentsCount; ++c) {
  8756. var resolutions = tile.components[c].resolutions;
  8757. if (r < resolutions.length) {
  8758. maxNumPrecincts = Math.max(maxNumPrecincts, resolutions[r].precinctParameters.numprecincts);
  8759. }
  8760. }
  8761. maxNumPrecinctsInLevel[r] = maxNumPrecincts;
  8762. }
  8763. l = 0;
  8764. r = 0;
  8765. c = 0;
  8766. p = 0;
  8767. this.nextPacket = function JpxImage_nextPacket() {
  8768. for (; r <= maxDecompositionLevelsCount; r++) {
  8769. for (; p < maxNumPrecinctsInLevel[r]; p++) {
  8770. for (; c < componentsCount; c++) {
  8771. var _component = tile.components[c];
  8772. if (r > _component.codingStyleParameters.decompositionLevelsCount) {
  8773. continue;
  8774. }
  8775. var resolution = _component.resolutions[r];
  8776. var numprecincts = resolution.precinctParameters.numprecincts;
  8777. if (p >= numprecincts) {
  8778. continue;
  8779. }
  8780. for (; l < layersCount;) {
  8781. var packet = createPacket(resolution, p, l);
  8782. l++;
  8783. return packet;
  8784. }
  8785. l = 0;
  8786. }
  8787. c = 0;
  8788. }
  8789. p = 0;
  8790. }
  8791. throw new JpxError("Out of packets");
  8792. };
  8793. }
  8794. function PositionComponentResolutionLayerIterator(context) {
  8795. var siz = context.SIZ;
  8796. var tileIndex = context.currentTile.index;
  8797. var tile = context.tiles[tileIndex];
  8798. var layersCount = tile.codingStyleDefaultParameters.layersCount;
  8799. var componentsCount = siz.Csiz;
  8800. var precinctsSizes = getPrecinctSizesInImageScale(tile);
  8801. var precinctsIterationSizes = precinctsSizes;
  8802. var l = 0,
  8803. r = 0,
  8804. c = 0,
  8805. px = 0,
  8806. py = 0;
  8807. this.nextPacket = function JpxImage_nextPacket() {
  8808. for (; py < precinctsIterationSizes.maxNumHigh; py++) {
  8809. for (; px < precinctsIterationSizes.maxNumWide; px++) {
  8810. for (; c < componentsCount; c++) {
  8811. var component = tile.components[c];
  8812. var decompositionLevelsCount = component.codingStyleParameters.decompositionLevelsCount;
  8813. for (; r <= decompositionLevelsCount; r++) {
  8814. var resolution = component.resolutions[r];
  8815. var sizeInImageScale = precinctsSizes.components[c].resolutions[r];
  8816. var k = getPrecinctIndexIfExist(px, py, sizeInImageScale, precinctsIterationSizes, resolution);
  8817. if (k === null) {
  8818. continue;
  8819. }
  8820. for (; l < layersCount;) {
  8821. var packet = createPacket(resolution, k, l);
  8822. l++;
  8823. return packet;
  8824. }
  8825. l = 0;
  8826. }
  8827. r = 0;
  8828. }
  8829. c = 0;
  8830. }
  8831. px = 0;
  8832. }
  8833. throw new JpxError("Out of packets");
  8834. };
  8835. }
  8836. function ComponentPositionResolutionLayerIterator(context) {
  8837. var siz = context.SIZ;
  8838. var tileIndex = context.currentTile.index;
  8839. var tile = context.tiles[tileIndex];
  8840. var layersCount = tile.codingStyleDefaultParameters.layersCount;
  8841. var componentsCount = siz.Csiz;
  8842. var precinctsSizes = getPrecinctSizesInImageScale(tile);
  8843. var l = 0,
  8844. r = 0,
  8845. c = 0,
  8846. px = 0,
  8847. py = 0;
  8848. this.nextPacket = function JpxImage_nextPacket() {
  8849. for (; c < componentsCount; ++c) {
  8850. var component = tile.components[c];
  8851. var precinctsIterationSizes = precinctsSizes.components[c];
  8852. var decompositionLevelsCount = component.codingStyleParameters.decompositionLevelsCount;
  8853. for (; py < precinctsIterationSizes.maxNumHigh; py++) {
  8854. for (; px < precinctsIterationSizes.maxNumWide; px++) {
  8855. for (; r <= decompositionLevelsCount; r++) {
  8856. var resolution = component.resolutions[r];
  8857. var sizeInImageScale = precinctsIterationSizes.resolutions[r];
  8858. var k = getPrecinctIndexIfExist(px, py, sizeInImageScale, precinctsIterationSizes, resolution);
  8859. if (k === null) {
  8860. continue;
  8861. }
  8862. for (; l < layersCount;) {
  8863. var packet = createPacket(resolution, k, l);
  8864. l++;
  8865. return packet;
  8866. }
  8867. l = 0;
  8868. }
  8869. r = 0;
  8870. }
  8871. px = 0;
  8872. }
  8873. py = 0;
  8874. }
  8875. throw new JpxError("Out of packets");
  8876. };
  8877. }
  8878. function getPrecinctIndexIfExist(pxIndex, pyIndex, sizeInImageScale, precinctIterationSizes, resolution) {
  8879. var posX = pxIndex * precinctIterationSizes.minWidth;
  8880. var posY = pyIndex * precinctIterationSizes.minHeight;
  8881. if (posX % sizeInImageScale.width !== 0 || posY % sizeInImageScale.height !== 0) {
  8882. return null;
  8883. }
  8884. var startPrecinctRowIndex = posY / sizeInImageScale.width * resolution.precinctParameters.numprecinctswide;
  8885. return posX / sizeInImageScale.height + startPrecinctRowIndex;
  8886. }
  8887. function getPrecinctSizesInImageScale(tile) {
  8888. var componentsCount = tile.components.length;
  8889. var minWidth = Number.MAX_VALUE;
  8890. var minHeight = Number.MAX_VALUE;
  8891. var maxNumWide = 0;
  8892. var maxNumHigh = 0;
  8893. var sizePerComponent = new Array(componentsCount);
  8894. for (var c = 0; c < componentsCount; c++) {
  8895. var component = tile.components[c];
  8896. var decompositionLevelsCount = component.codingStyleParameters.decompositionLevelsCount;
  8897. var sizePerResolution = new Array(decompositionLevelsCount + 1);
  8898. var minWidthCurrentComponent = Number.MAX_VALUE;
  8899. var minHeightCurrentComponent = Number.MAX_VALUE;
  8900. var maxNumWideCurrentComponent = 0;
  8901. var maxNumHighCurrentComponent = 0;
  8902. var scale = 1;
  8903. for (var r = decompositionLevelsCount; r >= 0; --r) {
  8904. var resolution = component.resolutions[r];
  8905. var widthCurrentResolution = scale * resolution.precinctParameters.precinctWidth;
  8906. var heightCurrentResolution = scale * resolution.precinctParameters.precinctHeight;
  8907. minWidthCurrentComponent = Math.min(minWidthCurrentComponent, widthCurrentResolution);
  8908. minHeightCurrentComponent = Math.min(minHeightCurrentComponent, heightCurrentResolution);
  8909. maxNumWideCurrentComponent = Math.max(maxNumWideCurrentComponent, resolution.precinctParameters.numprecinctswide);
  8910. maxNumHighCurrentComponent = Math.max(maxNumHighCurrentComponent, resolution.precinctParameters.numprecinctshigh);
  8911. sizePerResolution[r] = {
  8912. width: widthCurrentResolution,
  8913. height: heightCurrentResolution
  8914. };
  8915. scale <<= 1;
  8916. }
  8917. minWidth = Math.min(minWidth, minWidthCurrentComponent);
  8918. minHeight = Math.min(minHeight, minHeightCurrentComponent);
  8919. maxNumWide = Math.max(maxNumWide, maxNumWideCurrentComponent);
  8920. maxNumHigh = Math.max(maxNumHigh, maxNumHighCurrentComponent);
  8921. sizePerComponent[c] = {
  8922. resolutions: sizePerResolution,
  8923. minWidth: minWidthCurrentComponent,
  8924. minHeight: minHeightCurrentComponent,
  8925. maxNumWide: maxNumWideCurrentComponent,
  8926. maxNumHigh: maxNumHighCurrentComponent
  8927. };
  8928. }
  8929. return {
  8930. components: sizePerComponent,
  8931. minWidth: minWidth,
  8932. minHeight: minHeight,
  8933. maxNumWide: maxNumWide,
  8934. maxNumHigh: maxNumHigh
  8935. };
  8936. }
  8937. function buildPackets(context) {
  8938. var siz = context.SIZ;
  8939. var tileIndex = context.currentTile.index;
  8940. var tile = context.tiles[tileIndex];
  8941. var componentsCount = siz.Csiz;
  8942. for (var c = 0; c < componentsCount; c++) {
  8943. var component = tile.components[c];
  8944. var decompositionLevelsCount = component.codingStyleParameters.decompositionLevelsCount;
  8945. var resolutions = [];
  8946. var subbands = [];
  8947. for (var r = 0; r <= decompositionLevelsCount; r++) {
  8948. var blocksDimensions = getBlocksDimensions(context, component, r);
  8949. var resolution = {};
  8950. var scale = 1 << decompositionLevelsCount - r;
  8951. resolution.trx0 = Math.ceil(component.tcx0 / scale);
  8952. resolution.try0 = Math.ceil(component.tcy0 / scale);
  8953. resolution.trx1 = Math.ceil(component.tcx1 / scale);
  8954. resolution.try1 = Math.ceil(component.tcy1 / scale);
  8955. resolution.resLevel = r;
  8956. buildPrecincts(context, resolution, blocksDimensions);
  8957. resolutions.push(resolution);
  8958. var subband = void 0;
  8959. if (r === 0) {
  8960. subband = {};
  8961. subband.type = "LL";
  8962. subband.tbx0 = Math.ceil(component.tcx0 / scale);
  8963. subband.tby0 = Math.ceil(component.tcy0 / scale);
  8964. subband.tbx1 = Math.ceil(component.tcx1 / scale);
  8965. subband.tby1 = Math.ceil(component.tcy1 / scale);
  8966. subband.resolution = resolution;
  8967. buildCodeblocks(context, subband, blocksDimensions);
  8968. subbands.push(subband);
  8969. resolution.subbands = [subband];
  8970. } else {
  8971. var bscale = 1 << decompositionLevelsCount - r + 1;
  8972. var resolutionSubbands = [];
  8973. subband = {};
  8974. subband.type = "HL";
  8975. subband.tbx0 = Math.ceil(component.tcx0 / bscale - 0.5);
  8976. subband.tby0 = Math.ceil(component.tcy0 / bscale);
  8977. subband.tbx1 = Math.ceil(component.tcx1 / bscale - 0.5);
  8978. subband.tby1 = Math.ceil(component.tcy1 / bscale);
  8979. subband.resolution = resolution;
  8980. buildCodeblocks(context, subband, blocksDimensions);
  8981. subbands.push(subband);
  8982. resolutionSubbands.push(subband);
  8983. subband = {};
  8984. subband.type = "LH";
  8985. subband.tbx0 = Math.ceil(component.tcx0 / bscale);
  8986. subband.tby0 = Math.ceil(component.tcy0 / bscale - 0.5);
  8987. subband.tbx1 = Math.ceil(component.tcx1 / bscale);
  8988. subband.tby1 = Math.ceil(component.tcy1 / bscale - 0.5);
  8989. subband.resolution = resolution;
  8990. buildCodeblocks(context, subband, blocksDimensions);
  8991. subbands.push(subband);
  8992. resolutionSubbands.push(subband);
  8993. subband = {};
  8994. subband.type = "HH";
  8995. subband.tbx0 = Math.ceil(component.tcx0 / bscale - 0.5);
  8996. subband.tby0 = Math.ceil(component.tcy0 / bscale - 0.5);
  8997. subband.tbx1 = Math.ceil(component.tcx1 / bscale - 0.5);
  8998. subband.tby1 = Math.ceil(component.tcy1 / bscale - 0.5);
  8999. subband.resolution = resolution;
  9000. buildCodeblocks(context, subband, blocksDimensions);
  9001. subbands.push(subband);
  9002. resolutionSubbands.push(subband);
  9003. resolution.subbands = resolutionSubbands;
  9004. }
  9005. }
  9006. component.resolutions = resolutions;
  9007. component.subbands = subbands;
  9008. }
  9009. var progressionOrder = tile.codingStyleDefaultParameters.progressionOrder;
  9010. switch (progressionOrder) {
  9011. case 0:
  9012. tile.packetsIterator = new LayerResolutionComponentPositionIterator(context);
  9013. break;
  9014. case 1:
  9015. tile.packetsIterator = new ResolutionLayerComponentPositionIterator(context);
  9016. break;
  9017. case 2:
  9018. tile.packetsIterator = new ResolutionPositionComponentLayerIterator(context);
  9019. break;
  9020. case 3:
  9021. tile.packetsIterator = new PositionComponentResolutionLayerIterator(context);
  9022. break;
  9023. case 4:
  9024. tile.packetsIterator = new ComponentPositionResolutionLayerIterator(context);
  9025. break;
  9026. default:
  9027. throw new JpxError("Unsupported progression order ".concat(progressionOrder));
  9028. }
  9029. }
  9030. function parseTilePackets(context, data, offset, dataLength) {
  9031. var position = 0;
  9032. var buffer,
  9033. bufferSize = 0,
  9034. skipNextBit = false;
  9035. function readBits(count) {
  9036. while (bufferSize < count) {
  9037. var b = data[offset + position];
  9038. position++;
  9039. if (skipNextBit) {
  9040. buffer = buffer << 7 | b;
  9041. bufferSize += 7;
  9042. skipNextBit = false;
  9043. } else {
  9044. buffer = buffer << 8 | b;
  9045. bufferSize += 8;
  9046. }
  9047. if (b === 0xff) {
  9048. skipNextBit = true;
  9049. }
  9050. }
  9051. bufferSize -= count;
  9052. return buffer >>> bufferSize & (1 << count) - 1;
  9053. }
  9054. function skipMarkerIfEqual(value) {
  9055. if (data[offset + position - 1] === 0xff && data[offset + position] === value) {
  9056. skipBytes(1);
  9057. return true;
  9058. } else if (data[offset + position] === 0xff && data[offset + position + 1] === value) {
  9059. skipBytes(2);
  9060. return true;
  9061. }
  9062. return false;
  9063. }
  9064. function skipBytes(count) {
  9065. position += count;
  9066. }
  9067. function alignToByte() {
  9068. bufferSize = 0;
  9069. if (skipNextBit) {
  9070. position++;
  9071. skipNextBit = false;
  9072. }
  9073. }
  9074. function readCodingpasses() {
  9075. if (readBits(1) === 0) {
  9076. return 1;
  9077. }
  9078. if (readBits(1) === 0) {
  9079. return 2;
  9080. }
  9081. var value = readBits(2);
  9082. if (value < 3) {
  9083. return value + 3;
  9084. }
  9085. value = readBits(5);
  9086. if (value < 31) {
  9087. return value + 6;
  9088. }
  9089. value = readBits(7);
  9090. return value + 37;
  9091. }
  9092. var tileIndex = context.currentTile.index;
  9093. var tile = context.tiles[tileIndex];
  9094. var sopMarkerUsed = context.COD.sopMarkerUsed;
  9095. var ephMarkerUsed = context.COD.ephMarkerUsed;
  9096. var packetsIterator = tile.packetsIterator;
  9097. while (position < dataLength) {
  9098. alignToByte();
  9099. if (sopMarkerUsed && skipMarkerIfEqual(0x91)) {
  9100. skipBytes(4);
  9101. }
  9102. var packet = packetsIterator.nextPacket();
  9103. if (!readBits(1)) {
  9104. continue;
  9105. }
  9106. var layerNumber = packet.layerNumber,
  9107. queue = [];
  9108. var codeblock = void 0;
  9109. for (var i = 0, ii = packet.codeblocks.length; i < ii; i++) {
  9110. codeblock = packet.codeblocks[i];
  9111. var precinct = codeblock.precinct;
  9112. var codeblockColumn = codeblock.cbx - precinct.cbxMin;
  9113. var codeblockRow = codeblock.cby - precinct.cbyMin;
  9114. var codeblockIncluded = false;
  9115. var firstTimeInclusion = false;
  9116. var valueReady = void 0,
  9117. zeroBitPlanesTree = void 0;
  9118. if (codeblock.included !== undefined) {
  9119. codeblockIncluded = !!readBits(1);
  9120. } else {
  9121. precinct = codeblock.precinct;
  9122. var inclusionTree = void 0;
  9123. if (precinct.inclusionTree !== undefined) {
  9124. inclusionTree = precinct.inclusionTree;
  9125. } else {
  9126. var width = precinct.cbxMax - precinct.cbxMin + 1;
  9127. var height = precinct.cbyMax - precinct.cbyMin + 1;
  9128. inclusionTree = new InclusionTree(width, height, layerNumber);
  9129. zeroBitPlanesTree = new TagTree(width, height);
  9130. precinct.inclusionTree = inclusionTree;
  9131. precinct.zeroBitPlanesTree = zeroBitPlanesTree;
  9132. for (var l = 0; l < layerNumber; l++) {
  9133. if (readBits(1) !== 0) {
  9134. throw new JpxError("Invalid tag tree");
  9135. }
  9136. }
  9137. }
  9138. if (inclusionTree.reset(codeblockColumn, codeblockRow, layerNumber)) {
  9139. while (true) {
  9140. if (readBits(1)) {
  9141. valueReady = !inclusionTree.nextLevel();
  9142. if (valueReady) {
  9143. codeblock.included = true;
  9144. codeblockIncluded = firstTimeInclusion = true;
  9145. break;
  9146. }
  9147. } else {
  9148. inclusionTree.incrementValue(layerNumber);
  9149. break;
  9150. }
  9151. }
  9152. }
  9153. }
  9154. if (!codeblockIncluded) {
  9155. continue;
  9156. }
  9157. if (firstTimeInclusion) {
  9158. zeroBitPlanesTree = precinct.zeroBitPlanesTree;
  9159. zeroBitPlanesTree.reset(codeblockColumn, codeblockRow);
  9160. while (true) {
  9161. if (readBits(1)) {
  9162. valueReady = !zeroBitPlanesTree.nextLevel();
  9163. if (valueReady) {
  9164. break;
  9165. }
  9166. } else {
  9167. zeroBitPlanesTree.incrementValue();
  9168. }
  9169. }
  9170. codeblock.zeroBitPlanes = zeroBitPlanesTree.value;
  9171. }
  9172. var codingpasses = readCodingpasses();
  9173. while (readBits(1)) {
  9174. codeblock.Lblock++;
  9175. }
  9176. var codingpassesLog2 = (0, _core_utils.log2)(codingpasses);
  9177. var bits = (codingpasses < 1 << codingpassesLog2 ? codingpassesLog2 - 1 : codingpassesLog2) + codeblock.Lblock;
  9178. var codedDataLength = readBits(bits);
  9179. queue.push({
  9180. codeblock: codeblock,
  9181. codingpasses: codingpasses,
  9182. dataLength: codedDataLength
  9183. });
  9184. }
  9185. alignToByte();
  9186. if (ephMarkerUsed) {
  9187. skipMarkerIfEqual(0x92);
  9188. }
  9189. while (queue.length > 0) {
  9190. var packetItem = queue.shift();
  9191. codeblock = packetItem.codeblock;
  9192. if (codeblock.data === undefined) {
  9193. codeblock.data = [];
  9194. }
  9195. codeblock.data.push({
  9196. data: data,
  9197. start: offset + position,
  9198. end: offset + position + packetItem.dataLength,
  9199. codingpasses: packetItem.codingpasses
  9200. });
  9201. position += packetItem.dataLength;
  9202. }
  9203. }
  9204. return position;
  9205. }
  9206. function copyCoefficients(coefficients, levelWidth, levelHeight, subband, delta, mb, reversible, segmentationSymbolUsed) {
  9207. var x0 = subband.tbx0;
  9208. var y0 = subband.tby0;
  9209. var width = subband.tbx1 - subband.tbx0;
  9210. var codeblocks = subband.codeblocks;
  9211. var right = subband.type.charAt(0) === "H" ? 1 : 0;
  9212. var bottom = subband.type.charAt(1) === "H" ? levelWidth : 0;
  9213. for (var i = 0, ii = codeblocks.length; i < ii; ++i) {
  9214. var codeblock = codeblocks[i];
  9215. var blockWidth = codeblock.tbx1_ - codeblock.tbx0_;
  9216. var blockHeight = codeblock.tby1_ - codeblock.tby0_;
  9217. if (blockWidth === 0 || blockHeight === 0) {
  9218. continue;
  9219. }
  9220. if (codeblock.data === undefined) {
  9221. continue;
  9222. }
  9223. var bitModel = new BitModel(blockWidth, blockHeight, codeblock.subbandType, codeblock.zeroBitPlanes, mb);
  9224. var currentCodingpassType = 2;
  9225. var data = codeblock.data;
  9226. var totalLength = 0,
  9227. codingpasses = 0;
  9228. var j = void 0,
  9229. jj = void 0,
  9230. dataItem = void 0;
  9231. for (j = 0, jj = data.length; j < jj; j++) {
  9232. dataItem = data[j];
  9233. totalLength += dataItem.end - dataItem.start;
  9234. codingpasses += dataItem.codingpasses;
  9235. }
  9236. var encodedData = new Uint8Array(totalLength);
  9237. var position = 0;
  9238. for (j = 0, jj = data.length; j < jj; j++) {
  9239. dataItem = data[j];
  9240. var chunk = dataItem.data.subarray(dataItem.start, dataItem.end);
  9241. encodedData.set(chunk, position);
  9242. position += chunk.length;
  9243. }
  9244. var decoder = new _arithmetic_decoder.ArithmeticDecoder(encodedData, 0, totalLength);
  9245. bitModel.setDecoder(decoder);
  9246. for (j = 0; j < codingpasses; j++) {
  9247. switch (currentCodingpassType) {
  9248. case 0:
  9249. bitModel.runSignificancePropagationPass();
  9250. break;
  9251. case 1:
  9252. bitModel.runMagnitudeRefinementPass();
  9253. break;
  9254. case 2:
  9255. bitModel.runCleanupPass();
  9256. if (segmentationSymbolUsed) {
  9257. bitModel.checkSegmentationSymbol();
  9258. }
  9259. break;
  9260. }
  9261. currentCodingpassType = (currentCodingpassType + 1) % 3;
  9262. }
  9263. var offset = codeblock.tbx0_ - x0 + (codeblock.tby0_ - y0) * width;
  9264. var sign = bitModel.coefficentsSign;
  9265. var magnitude = bitModel.coefficentsMagnitude;
  9266. var bitsDecoded = bitModel.bitsDecoded;
  9267. var magnitudeCorrection = reversible ? 0 : 0.5;
  9268. var k = void 0,
  9269. n = void 0,
  9270. nb = void 0;
  9271. position = 0;
  9272. var interleave = subband.type !== "LL";
  9273. for (j = 0; j < blockHeight; j++) {
  9274. var row = offset / width | 0;
  9275. var levelOffset = 2 * row * (levelWidth - width) + right + bottom;
  9276. for (k = 0; k < blockWidth; k++) {
  9277. n = magnitude[position];
  9278. if (n !== 0) {
  9279. n = (n + magnitudeCorrection) * delta;
  9280. if (sign[position] !== 0) {
  9281. n = -n;
  9282. }
  9283. nb = bitsDecoded[position];
  9284. var pos = interleave ? levelOffset + (offset << 1) : offset;
  9285. if (reversible && nb >= mb) {
  9286. coefficients[pos] = n;
  9287. } else {
  9288. coefficients[pos] = n * (1 << mb - nb);
  9289. }
  9290. }
  9291. offset++;
  9292. position++;
  9293. }
  9294. offset += width - blockWidth;
  9295. }
  9296. }
  9297. }
  9298. function transformTile(context, tile, c) {
  9299. var component = tile.components[c];
  9300. var codingStyleParameters = component.codingStyleParameters;
  9301. var quantizationParameters = component.quantizationParameters;
  9302. var decompositionLevelsCount = codingStyleParameters.decompositionLevelsCount;
  9303. var spqcds = quantizationParameters.SPqcds;
  9304. var scalarExpounded = quantizationParameters.scalarExpounded;
  9305. var guardBits = quantizationParameters.guardBits;
  9306. var segmentationSymbolUsed = codingStyleParameters.segmentationSymbolUsed;
  9307. var precision = context.components[c].precision;
  9308. var reversible = codingStyleParameters.reversibleTransformation;
  9309. var transform = reversible ? new ReversibleTransform() : new IrreversibleTransform();
  9310. var subbandCoefficients = [];
  9311. var b = 0;
  9312. for (var i = 0; i <= decompositionLevelsCount; i++) {
  9313. var resolution = component.resolutions[i];
  9314. var width = resolution.trx1 - resolution.trx0;
  9315. var height = resolution.try1 - resolution.try0;
  9316. var coefficients = new Float32Array(width * height);
  9317. for (var j = 0, jj = resolution.subbands.length; j < jj; j++) {
  9318. var mu = void 0,
  9319. epsilon = void 0;
  9320. if (!scalarExpounded) {
  9321. mu = spqcds[0].mu;
  9322. epsilon = spqcds[0].epsilon + (i > 0 ? 1 - i : 0);
  9323. } else {
  9324. mu = spqcds[b].mu;
  9325. epsilon = spqcds[b].epsilon;
  9326. b++;
  9327. }
  9328. var subband = resolution.subbands[j];
  9329. var gainLog2 = SubbandsGainLog2[subband.type];
  9330. var delta = reversible ? 1 : Math.pow(2, precision + gainLog2 - epsilon) * (1 + mu / 2048);
  9331. var mb = guardBits + epsilon - 1;
  9332. copyCoefficients(coefficients, width, height, subband, delta, mb, reversible, segmentationSymbolUsed);
  9333. }
  9334. subbandCoefficients.push({
  9335. width: width,
  9336. height: height,
  9337. items: coefficients
  9338. });
  9339. }
  9340. var result = transform.calculate(subbandCoefficients, component.tcx0, component.tcy0);
  9341. return {
  9342. left: component.tcx0,
  9343. top: component.tcy0,
  9344. width: result.width,
  9345. height: result.height,
  9346. items: result.items
  9347. };
  9348. }
  9349. function transformComponents(context) {
  9350. var siz = context.SIZ;
  9351. var components = context.components;
  9352. var componentsCount = siz.Csiz;
  9353. var resultImages = [];
  9354. for (var i = 0, ii = context.tiles.length; i < ii; i++) {
  9355. var tile = context.tiles[i];
  9356. var transformedTiles = [];
  9357. for (var c = 0; c < componentsCount; c++) {
  9358. transformedTiles[c] = transformTile(context, tile, c);
  9359. }
  9360. var tile0 = transformedTiles[0];
  9361. var out = new Uint8ClampedArray(tile0.items.length * componentsCount);
  9362. var result = {
  9363. left: tile0.left,
  9364. top: tile0.top,
  9365. width: tile0.width,
  9366. height: tile0.height,
  9367. items: out
  9368. };
  9369. var shift = void 0,
  9370. offset = void 0;
  9371. var pos = 0,
  9372. j = void 0,
  9373. jj = void 0,
  9374. y0 = void 0,
  9375. y1 = void 0,
  9376. y2 = void 0;
  9377. if (tile.codingStyleDefaultParameters.multipleComponentTransform) {
  9378. var fourComponents = componentsCount === 4;
  9379. var y0items = transformedTiles[0].items;
  9380. var y1items = transformedTiles[1].items;
  9381. var y2items = transformedTiles[2].items;
  9382. var y3items = fourComponents ? transformedTiles[3].items : null;
  9383. shift = components[0].precision - 8;
  9384. offset = (128 << shift) + 0.5;
  9385. var component0 = tile.components[0];
  9386. var alpha01 = componentsCount - 3;
  9387. jj = y0items.length;
  9388. if (!component0.codingStyleParameters.reversibleTransformation) {
  9389. for (j = 0; j < jj; j++, pos += alpha01) {
  9390. y0 = y0items[j] + offset;
  9391. y1 = y1items[j];
  9392. y2 = y2items[j];
  9393. out[pos++] = y0 + 1.402 * y2 >> shift;
  9394. out[pos++] = y0 - 0.34413 * y1 - 0.71414 * y2 >> shift;
  9395. out[pos++] = y0 + 1.772 * y1 >> shift;
  9396. }
  9397. } else {
  9398. for (j = 0; j < jj; j++, pos += alpha01) {
  9399. y0 = y0items[j] + offset;
  9400. y1 = y1items[j];
  9401. y2 = y2items[j];
  9402. var g = y0 - (y2 + y1 >> 2);
  9403. out[pos++] = g + y2 >> shift;
  9404. out[pos++] = g >> shift;
  9405. out[pos++] = g + y1 >> shift;
  9406. }
  9407. }
  9408. if (fourComponents) {
  9409. for (j = 0, pos = 3; j < jj; j++, pos += 4) {
  9410. out[pos] = y3items[j] + offset >> shift;
  9411. }
  9412. }
  9413. } else {
  9414. for (var _c = 0; _c < componentsCount; _c++) {
  9415. var items = transformedTiles[_c].items;
  9416. shift = components[_c].precision - 8;
  9417. offset = (128 << shift) + 0.5;
  9418. for (pos = _c, j = 0, jj = items.length; j < jj; j++) {
  9419. out[pos] = items[j] + offset >> shift;
  9420. pos += componentsCount;
  9421. }
  9422. }
  9423. }
  9424. resultImages.push(result);
  9425. }
  9426. return resultImages;
  9427. }
  9428. function initializeTile(context, tileIndex) {
  9429. var siz = context.SIZ;
  9430. var componentsCount = siz.Csiz;
  9431. var tile = context.tiles[tileIndex];
  9432. for (var c = 0; c < componentsCount; c++) {
  9433. var component = tile.components[c];
  9434. var qcdOrQcc = context.currentTile.QCC[c] !== undefined ? context.currentTile.QCC[c] : context.currentTile.QCD;
  9435. component.quantizationParameters = qcdOrQcc;
  9436. var codOrCoc = context.currentTile.COC[c] !== undefined ? context.currentTile.COC[c] : context.currentTile.COD;
  9437. component.codingStyleParameters = codOrCoc;
  9438. }
  9439. tile.codingStyleDefaultParameters = context.currentTile.COD;
  9440. }
  9441. var TagTree = /*#__PURE__*/function () {
  9442. function TagTree(width, height) {
  9443. _classCallCheck(this, TagTree);
  9444. var levelsLength = (0, _core_utils.log2)(Math.max(width, height)) + 1;
  9445. this.levels = [];
  9446. for (var i = 0; i < levelsLength; i++) {
  9447. var level = {
  9448. width: width,
  9449. height: height,
  9450. items: []
  9451. };
  9452. this.levels.push(level);
  9453. width = Math.ceil(width / 2);
  9454. height = Math.ceil(height / 2);
  9455. }
  9456. }
  9457. _createClass(TagTree, [{
  9458. key: "reset",
  9459. value: function reset(i, j) {
  9460. var currentLevel = 0,
  9461. value = 0,
  9462. level;
  9463. while (currentLevel < this.levels.length) {
  9464. level = this.levels[currentLevel];
  9465. var index = i + j * level.width;
  9466. if (level.items[index] !== undefined) {
  9467. value = level.items[index];
  9468. break;
  9469. }
  9470. level.index = index;
  9471. i >>= 1;
  9472. j >>= 1;
  9473. currentLevel++;
  9474. }
  9475. currentLevel--;
  9476. level = this.levels[currentLevel];
  9477. level.items[level.index] = value;
  9478. this.currentLevel = currentLevel;
  9479. delete this.value;
  9480. }
  9481. }, {
  9482. key: "incrementValue",
  9483. value: function incrementValue() {
  9484. var level = this.levels[this.currentLevel];
  9485. level.items[level.index]++;
  9486. }
  9487. }, {
  9488. key: "nextLevel",
  9489. value: function nextLevel() {
  9490. var currentLevel = this.currentLevel;
  9491. var level = this.levels[currentLevel];
  9492. var value = level.items[level.index];
  9493. currentLevel--;
  9494. if (currentLevel < 0) {
  9495. this.value = value;
  9496. return false;
  9497. }
  9498. this.currentLevel = currentLevel;
  9499. level = this.levels[currentLevel];
  9500. level.items[level.index] = value;
  9501. return true;
  9502. }
  9503. }]);
  9504. return TagTree;
  9505. }();
  9506. var InclusionTree = /*#__PURE__*/function () {
  9507. function InclusionTree(width, height, defaultValue) {
  9508. _classCallCheck(this, InclusionTree);
  9509. var levelsLength = (0, _core_utils.log2)(Math.max(width, height)) + 1;
  9510. this.levels = [];
  9511. for (var i = 0; i < levelsLength; i++) {
  9512. var items = new Uint8Array(width * height);
  9513. for (var j = 0, jj = items.length; j < jj; j++) {
  9514. items[j] = defaultValue;
  9515. }
  9516. var level = {
  9517. width: width,
  9518. height: height,
  9519. items: items
  9520. };
  9521. this.levels.push(level);
  9522. width = Math.ceil(width / 2);
  9523. height = Math.ceil(height / 2);
  9524. }
  9525. }
  9526. _createClass(InclusionTree, [{
  9527. key: "reset",
  9528. value: function reset(i, j, stopValue) {
  9529. var currentLevel = 0;
  9530. while (currentLevel < this.levels.length) {
  9531. var level = this.levels[currentLevel];
  9532. var index = i + j * level.width;
  9533. level.index = index;
  9534. var value = level.items[index];
  9535. if (value === 0xff) {
  9536. break;
  9537. }
  9538. if (value > stopValue) {
  9539. this.currentLevel = currentLevel;
  9540. this.propagateValues();
  9541. return false;
  9542. }
  9543. i >>= 1;
  9544. j >>= 1;
  9545. currentLevel++;
  9546. }
  9547. this.currentLevel = currentLevel - 1;
  9548. return true;
  9549. }
  9550. }, {
  9551. key: "incrementValue",
  9552. value: function incrementValue(stopValue) {
  9553. var level = this.levels[this.currentLevel];
  9554. level.items[level.index] = stopValue + 1;
  9555. this.propagateValues();
  9556. }
  9557. }, {
  9558. key: "propagateValues",
  9559. value: function propagateValues() {
  9560. var levelIndex = this.currentLevel;
  9561. var level = this.levels[levelIndex];
  9562. var currentValue = level.items[level.index];
  9563. while (--levelIndex >= 0) {
  9564. level = this.levels[levelIndex];
  9565. level.items[level.index] = currentValue;
  9566. }
  9567. }
  9568. }, {
  9569. key: "nextLevel",
  9570. value: function nextLevel() {
  9571. var currentLevel = this.currentLevel;
  9572. var level = this.levels[currentLevel];
  9573. var value = level.items[level.index];
  9574. level.items[level.index] = 0xff;
  9575. currentLevel--;
  9576. if (currentLevel < 0) {
  9577. return false;
  9578. }
  9579. this.currentLevel = currentLevel;
  9580. level = this.levels[currentLevel];
  9581. level.items[level.index] = value;
  9582. return true;
  9583. }
  9584. }]);
  9585. return InclusionTree;
  9586. }();
  9587. var BitModel = function BitModelClosure() {
  9588. var UNIFORM_CONTEXT = 17;
  9589. var RUNLENGTH_CONTEXT = 18;
  9590. 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]);
  9591. 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]);
  9592. 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]);
  9593. var BitModel = /*#__PURE__*/function () {
  9594. function BitModel(width, height, subband, zeroBitPlanes, mb) {
  9595. _classCallCheck(this, BitModel);
  9596. this.width = width;
  9597. this.height = height;
  9598. var contextLabelTable;
  9599. if (subband === "HH") {
  9600. contextLabelTable = HHContextLabel;
  9601. } else if (subband === "HL") {
  9602. contextLabelTable = HLContextLabel;
  9603. } else {
  9604. contextLabelTable = LLAndLHContextsLabel;
  9605. }
  9606. this.contextLabelTable = contextLabelTable;
  9607. var coefficientCount = width * height;
  9608. this.neighborsSignificance = new Uint8Array(coefficientCount);
  9609. this.coefficentsSign = new Uint8Array(coefficientCount);
  9610. var coefficentsMagnitude;
  9611. if (mb > 14) {
  9612. coefficentsMagnitude = new Uint32Array(coefficientCount);
  9613. } else if (mb > 6) {
  9614. coefficentsMagnitude = new Uint16Array(coefficientCount);
  9615. } else {
  9616. coefficentsMagnitude = new Uint8Array(coefficientCount);
  9617. }
  9618. this.coefficentsMagnitude = coefficentsMagnitude;
  9619. this.processingFlags = new Uint8Array(coefficientCount);
  9620. var bitsDecoded = new Uint8Array(coefficientCount);
  9621. if (zeroBitPlanes !== 0) {
  9622. for (var i = 0; i < coefficientCount; i++) {
  9623. bitsDecoded[i] = zeroBitPlanes;
  9624. }
  9625. }
  9626. this.bitsDecoded = bitsDecoded;
  9627. this.reset();
  9628. }
  9629. _createClass(BitModel, [{
  9630. key: "setDecoder",
  9631. value: function setDecoder(decoder) {
  9632. this.decoder = decoder;
  9633. }
  9634. }, {
  9635. key: "reset",
  9636. value: function reset() {
  9637. this.contexts = new Int8Array(19);
  9638. this.contexts[0] = 4 << 1 | 0;
  9639. this.contexts[UNIFORM_CONTEXT] = 46 << 1 | 0;
  9640. this.contexts[RUNLENGTH_CONTEXT] = 3 << 1 | 0;
  9641. }
  9642. }, {
  9643. key: "setNeighborsSignificance",
  9644. value: function setNeighborsSignificance(row, column, index) {
  9645. var neighborsSignificance = this.neighborsSignificance;
  9646. var width = this.width,
  9647. height = this.height;
  9648. var left = column > 0;
  9649. var right = column + 1 < width;
  9650. var i;
  9651. if (row > 0) {
  9652. i = index - width;
  9653. if (left) {
  9654. neighborsSignificance[i - 1] += 0x10;
  9655. }
  9656. if (right) {
  9657. neighborsSignificance[i + 1] += 0x10;
  9658. }
  9659. neighborsSignificance[i] += 0x04;
  9660. }
  9661. if (row + 1 < height) {
  9662. i = index + width;
  9663. if (left) {
  9664. neighborsSignificance[i - 1] += 0x10;
  9665. }
  9666. if (right) {
  9667. neighborsSignificance[i + 1] += 0x10;
  9668. }
  9669. neighborsSignificance[i] += 0x04;
  9670. }
  9671. if (left) {
  9672. neighborsSignificance[index - 1] += 0x01;
  9673. }
  9674. if (right) {
  9675. neighborsSignificance[index + 1] += 0x01;
  9676. }
  9677. neighborsSignificance[index] |= 0x80;
  9678. }
  9679. }, {
  9680. key: "runSignificancePropagationPass",
  9681. value: function runSignificancePropagationPass() {
  9682. var decoder = this.decoder;
  9683. var width = this.width,
  9684. height = this.height;
  9685. var coefficentsMagnitude = this.coefficentsMagnitude;
  9686. var coefficentsSign = this.coefficentsSign;
  9687. var neighborsSignificance = this.neighborsSignificance;
  9688. var processingFlags = this.processingFlags;
  9689. var contexts = this.contexts;
  9690. var labels = this.contextLabelTable;
  9691. var bitsDecoded = this.bitsDecoded;
  9692. var processedInverseMask = ~1;
  9693. var processedMask = 1;
  9694. var firstMagnitudeBitMask = 2;
  9695. for (var i0 = 0; i0 < height; i0 += 4) {
  9696. for (var j = 0; j < width; j++) {
  9697. var index = i0 * width + j;
  9698. for (var i1 = 0; i1 < 4; i1++, index += width) {
  9699. var i = i0 + i1;
  9700. if (i >= height) {
  9701. break;
  9702. }
  9703. processingFlags[index] &= processedInverseMask;
  9704. if (coefficentsMagnitude[index] || !neighborsSignificance[index]) {
  9705. continue;
  9706. }
  9707. var contextLabel = labels[neighborsSignificance[index]];
  9708. var decision = decoder.readBit(contexts, contextLabel);
  9709. if (decision) {
  9710. var sign = this.decodeSignBit(i, j, index);
  9711. coefficentsSign[index] = sign;
  9712. coefficentsMagnitude[index] = 1;
  9713. this.setNeighborsSignificance(i, j, index);
  9714. processingFlags[index] |= firstMagnitudeBitMask;
  9715. }
  9716. bitsDecoded[index]++;
  9717. processingFlags[index] |= processedMask;
  9718. }
  9719. }
  9720. }
  9721. }
  9722. }, {
  9723. key: "decodeSignBit",
  9724. value: function decodeSignBit(row, column, index) {
  9725. var width = this.width,
  9726. height = this.height;
  9727. var coefficentsMagnitude = this.coefficentsMagnitude;
  9728. var coefficentsSign = this.coefficentsSign;
  9729. var contribution, sign0, sign1, significance1;
  9730. var contextLabel, decoded;
  9731. significance1 = column > 0 && coefficentsMagnitude[index - 1] !== 0;
  9732. if (column + 1 < width && coefficentsMagnitude[index + 1] !== 0) {
  9733. sign1 = coefficentsSign[index + 1];
  9734. if (significance1) {
  9735. sign0 = coefficentsSign[index - 1];
  9736. contribution = 1 - sign1 - sign0;
  9737. } else {
  9738. contribution = 1 - sign1 - sign1;
  9739. }
  9740. } else if (significance1) {
  9741. sign0 = coefficentsSign[index - 1];
  9742. contribution = 1 - sign0 - sign0;
  9743. } else {
  9744. contribution = 0;
  9745. }
  9746. var horizontalContribution = 3 * contribution;
  9747. significance1 = row > 0 && coefficentsMagnitude[index - width] !== 0;
  9748. if (row + 1 < height && coefficentsMagnitude[index + width] !== 0) {
  9749. sign1 = coefficentsSign[index + width];
  9750. if (significance1) {
  9751. sign0 = coefficentsSign[index - width];
  9752. contribution = 1 - sign1 - sign0 + horizontalContribution;
  9753. } else {
  9754. contribution = 1 - sign1 - sign1 + horizontalContribution;
  9755. }
  9756. } else if (significance1) {
  9757. sign0 = coefficentsSign[index - width];
  9758. contribution = 1 - sign0 - sign0 + horizontalContribution;
  9759. } else {
  9760. contribution = horizontalContribution;
  9761. }
  9762. if (contribution >= 0) {
  9763. contextLabel = 9 + contribution;
  9764. decoded = this.decoder.readBit(this.contexts, contextLabel);
  9765. } else {
  9766. contextLabel = 9 - contribution;
  9767. decoded = this.decoder.readBit(this.contexts, contextLabel) ^ 1;
  9768. }
  9769. return decoded;
  9770. }
  9771. }, {
  9772. key: "runMagnitudeRefinementPass",
  9773. value: function runMagnitudeRefinementPass() {
  9774. var decoder = this.decoder;
  9775. var width = this.width,
  9776. height = this.height;
  9777. var coefficentsMagnitude = this.coefficentsMagnitude;
  9778. var neighborsSignificance = this.neighborsSignificance;
  9779. var contexts = this.contexts;
  9780. var bitsDecoded = this.bitsDecoded;
  9781. var processingFlags = this.processingFlags;
  9782. var processedMask = 1;
  9783. var firstMagnitudeBitMask = 2;
  9784. var length = width * height;
  9785. var width4 = width * 4;
  9786. for (var index0 = 0, indexNext; index0 < length; index0 = indexNext) {
  9787. indexNext = Math.min(length, index0 + width4);
  9788. for (var j = 0; j < width; j++) {
  9789. for (var index = index0 + j; index < indexNext; index += width) {
  9790. if (!coefficentsMagnitude[index] || (processingFlags[index] & processedMask) !== 0) {
  9791. continue;
  9792. }
  9793. var contextLabel = 16;
  9794. if ((processingFlags[index] & firstMagnitudeBitMask) !== 0) {
  9795. processingFlags[index] ^= firstMagnitudeBitMask;
  9796. var significance = neighborsSignificance[index] & 127;
  9797. contextLabel = significance === 0 ? 15 : 14;
  9798. }
  9799. var bit = decoder.readBit(contexts, contextLabel);
  9800. coefficentsMagnitude[index] = coefficentsMagnitude[index] << 1 | bit;
  9801. bitsDecoded[index]++;
  9802. processingFlags[index] |= processedMask;
  9803. }
  9804. }
  9805. }
  9806. }
  9807. }, {
  9808. key: "runCleanupPass",
  9809. value: function runCleanupPass() {
  9810. var decoder = this.decoder;
  9811. var width = this.width,
  9812. height = this.height;
  9813. var neighborsSignificance = this.neighborsSignificance;
  9814. var coefficentsMagnitude = this.coefficentsMagnitude;
  9815. var coefficentsSign = this.coefficentsSign;
  9816. var contexts = this.contexts;
  9817. var labels = this.contextLabelTable;
  9818. var bitsDecoded = this.bitsDecoded;
  9819. var processingFlags = this.processingFlags;
  9820. var processedMask = 1;
  9821. var firstMagnitudeBitMask = 2;
  9822. var oneRowDown = width;
  9823. var twoRowsDown = width * 2;
  9824. var threeRowsDown = width * 3;
  9825. var iNext;
  9826. for (var i0 = 0; i0 < height; i0 = iNext) {
  9827. iNext = Math.min(i0 + 4, height);
  9828. var indexBase = i0 * width;
  9829. var checkAllEmpty = i0 + 3 < height;
  9830. for (var j = 0; j < width; j++) {
  9831. var index0 = indexBase + j;
  9832. 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;
  9833. var i1 = 0,
  9834. index = index0;
  9835. var i = i0,
  9836. sign = void 0;
  9837. if (allEmpty) {
  9838. var hasSignificantCoefficent = decoder.readBit(contexts, RUNLENGTH_CONTEXT);
  9839. if (!hasSignificantCoefficent) {
  9840. bitsDecoded[index0]++;
  9841. bitsDecoded[index0 + oneRowDown]++;
  9842. bitsDecoded[index0 + twoRowsDown]++;
  9843. bitsDecoded[index0 + threeRowsDown]++;
  9844. continue;
  9845. }
  9846. i1 = decoder.readBit(contexts, UNIFORM_CONTEXT) << 1 | decoder.readBit(contexts, UNIFORM_CONTEXT);
  9847. if (i1 !== 0) {
  9848. i = i0 + i1;
  9849. index += i1 * width;
  9850. }
  9851. sign = this.decodeSignBit(i, j, index);
  9852. coefficentsSign[index] = sign;
  9853. coefficentsMagnitude[index] = 1;
  9854. this.setNeighborsSignificance(i, j, index);
  9855. processingFlags[index] |= firstMagnitudeBitMask;
  9856. index = index0;
  9857. for (var i2 = i0; i2 <= i; i2++, index += width) {
  9858. bitsDecoded[index]++;
  9859. }
  9860. i1++;
  9861. }
  9862. for (i = i0 + i1; i < iNext; i++, index += width) {
  9863. if (coefficentsMagnitude[index] || (processingFlags[index] & processedMask) !== 0) {
  9864. continue;
  9865. }
  9866. var contextLabel = labels[neighborsSignificance[index]];
  9867. var decision = decoder.readBit(contexts, contextLabel);
  9868. if (decision === 1) {
  9869. sign = this.decodeSignBit(i, j, index);
  9870. coefficentsSign[index] = sign;
  9871. coefficentsMagnitude[index] = 1;
  9872. this.setNeighborsSignificance(i, j, index);
  9873. processingFlags[index] |= firstMagnitudeBitMask;
  9874. }
  9875. bitsDecoded[index]++;
  9876. }
  9877. }
  9878. }
  9879. }
  9880. }, {
  9881. key: "checkSegmentationSymbol",
  9882. value: function checkSegmentationSymbol() {
  9883. var decoder = this.decoder;
  9884. var contexts = this.contexts;
  9885. 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);
  9886. if (symbol !== 0xa) {
  9887. throw new JpxError("Invalid segmentation symbol");
  9888. }
  9889. }
  9890. }]);
  9891. return BitModel;
  9892. }();
  9893. return BitModel;
  9894. }();
  9895. var Transform = /*#__PURE__*/function () {
  9896. function Transform() {
  9897. _classCallCheck(this, Transform);
  9898. if (this.constructor === Transform) {
  9899. (0, _util.unreachable)("Cannot initialize Transform.");
  9900. }
  9901. }
  9902. _createClass(Transform, [{
  9903. key: "calculate",
  9904. value: function calculate(subbands, u0, v0) {
  9905. var ll = subbands[0];
  9906. for (var i = 1, ii = subbands.length; i < ii; i++) {
  9907. ll = this.iterate(ll, subbands[i], u0, v0);
  9908. }
  9909. return ll;
  9910. }
  9911. }, {
  9912. key: "extend",
  9913. value: function extend(buffer, offset, size) {
  9914. var i1 = offset - 1,
  9915. j1 = offset + 1;
  9916. var i2 = offset + size - 2,
  9917. j2 = offset + size;
  9918. buffer[i1--] = buffer[j1++];
  9919. buffer[j2++] = buffer[i2--];
  9920. buffer[i1--] = buffer[j1++];
  9921. buffer[j2++] = buffer[i2--];
  9922. buffer[i1--] = buffer[j1++];
  9923. buffer[j2++] = buffer[i2--];
  9924. buffer[i1] = buffer[j1];
  9925. buffer[j2] = buffer[i2];
  9926. }
  9927. }, {
  9928. key: "filter",
  9929. value: function filter(x, offset, length) {
  9930. (0, _util.unreachable)("Abstract method `filter` called");
  9931. }
  9932. }, {
  9933. key: "iterate",
  9934. value: function iterate(ll, hl_lh_hh, u0, v0) {
  9935. var llWidth = ll.width,
  9936. llHeight = ll.height;
  9937. var llItems = ll.items;
  9938. var width = hl_lh_hh.width;
  9939. var height = hl_lh_hh.height;
  9940. var items = hl_lh_hh.items;
  9941. var i, j, k, l, u, v;
  9942. for (k = 0, i = 0; i < llHeight; i++) {
  9943. l = i * 2 * width;
  9944. for (j = 0; j < llWidth; j++, k++, l += 2) {
  9945. items[l] = llItems[k];
  9946. }
  9947. }
  9948. llItems = ll.items = null;
  9949. var bufferPadding = 4;
  9950. var rowBuffer = new Float32Array(width + 2 * bufferPadding);
  9951. if (width === 1) {
  9952. if ((u0 & 1) !== 0) {
  9953. for (v = 0, k = 0; v < height; v++, k += width) {
  9954. items[k] *= 0.5;
  9955. }
  9956. }
  9957. } else {
  9958. for (v = 0, k = 0; v < height; v++, k += width) {
  9959. rowBuffer.set(items.subarray(k, k + width), bufferPadding);
  9960. this.extend(rowBuffer, bufferPadding, width);
  9961. this.filter(rowBuffer, bufferPadding, width);
  9962. items.set(rowBuffer.subarray(bufferPadding, bufferPadding + width), k);
  9963. }
  9964. }
  9965. var numBuffers = 16;
  9966. var colBuffers = [];
  9967. for (i = 0; i < numBuffers; i++) {
  9968. colBuffers.push(new Float32Array(height + 2 * bufferPadding));
  9969. }
  9970. var b,
  9971. currentBuffer = 0;
  9972. ll = bufferPadding + height;
  9973. if (height === 1) {
  9974. if ((v0 & 1) !== 0) {
  9975. for (u = 0; u < width; u++) {
  9976. items[u] *= 0.5;
  9977. }
  9978. }
  9979. } else {
  9980. for (u = 0; u < width; u++) {
  9981. if (currentBuffer === 0) {
  9982. numBuffers = Math.min(width - u, numBuffers);
  9983. for (k = u, l = bufferPadding; l < ll; k += width, l++) {
  9984. for (b = 0; b < numBuffers; b++) {
  9985. colBuffers[b][l] = items[k + b];
  9986. }
  9987. }
  9988. currentBuffer = numBuffers;
  9989. }
  9990. currentBuffer--;
  9991. var buffer = colBuffers[currentBuffer];
  9992. this.extend(buffer, bufferPadding, height);
  9993. this.filter(buffer, bufferPadding, height);
  9994. if (currentBuffer === 0) {
  9995. k = u - numBuffers + 1;
  9996. for (l = bufferPadding; l < ll; k += width, l++) {
  9997. for (b = 0; b < numBuffers; b++) {
  9998. items[k + b] = colBuffers[b][l];
  9999. }
  10000. }
  10001. }
  10002. }
  10003. }
  10004. return {
  10005. width: width,
  10006. height: height,
  10007. items: items
  10008. };
  10009. }
  10010. }]);
  10011. return Transform;
  10012. }();
  10013. var IrreversibleTransform = /*#__PURE__*/function (_Transform) {
  10014. _inherits(IrreversibleTransform, _Transform);
  10015. var _super2 = _createSuper(IrreversibleTransform);
  10016. function IrreversibleTransform() {
  10017. _classCallCheck(this, IrreversibleTransform);
  10018. return _super2.apply(this, arguments);
  10019. }
  10020. _createClass(IrreversibleTransform, [{
  10021. key: "filter",
  10022. value: function filter(x, offset, length) {
  10023. var len = length >> 1;
  10024. offset |= 0;
  10025. var j, n, current, next;
  10026. var alpha = -1.586134342059924;
  10027. var beta = -0.052980118572961;
  10028. var gamma = 0.882911075530934;
  10029. var delta = 0.443506852043971;
  10030. var K = 1.230174104914001;
  10031. var K_ = 1 / K;
  10032. j = offset - 3;
  10033. for (n = len + 4; n--; j += 2) {
  10034. x[j] *= K_;
  10035. }
  10036. j = offset - 2;
  10037. current = delta * x[j - 1];
  10038. for (n = len + 3; n--; j += 2) {
  10039. next = delta * x[j + 1];
  10040. x[j] = K * x[j] - current - next;
  10041. if (n--) {
  10042. j += 2;
  10043. current = delta * x[j + 1];
  10044. x[j] = K * x[j] - current - next;
  10045. } else {
  10046. break;
  10047. }
  10048. }
  10049. j = offset - 1;
  10050. current = gamma * x[j - 1];
  10051. for (n = len + 2; n--; j += 2) {
  10052. next = gamma * x[j + 1];
  10053. x[j] -= current + next;
  10054. if (n--) {
  10055. j += 2;
  10056. current = gamma * x[j + 1];
  10057. x[j] -= current + next;
  10058. } else {
  10059. break;
  10060. }
  10061. }
  10062. j = offset;
  10063. current = beta * x[j - 1];
  10064. for (n = len + 1; n--; j += 2) {
  10065. next = beta * x[j + 1];
  10066. x[j] -= current + next;
  10067. if (n--) {
  10068. j += 2;
  10069. current = beta * x[j + 1];
  10070. x[j] -= current + next;
  10071. } else {
  10072. break;
  10073. }
  10074. }
  10075. if (len !== 0) {
  10076. j = offset + 1;
  10077. current = alpha * x[j - 1];
  10078. for (n = len; n--; j += 2) {
  10079. next = alpha * x[j + 1];
  10080. x[j] -= current + next;
  10081. if (n--) {
  10082. j += 2;
  10083. current = alpha * x[j + 1];
  10084. x[j] -= current + next;
  10085. } else {
  10086. break;
  10087. }
  10088. }
  10089. }
  10090. }
  10091. }]);
  10092. return IrreversibleTransform;
  10093. }(Transform);
  10094. var ReversibleTransform = /*#__PURE__*/function (_Transform2) {
  10095. _inherits(ReversibleTransform, _Transform2);
  10096. var _super3 = _createSuper(ReversibleTransform);
  10097. function ReversibleTransform() {
  10098. _classCallCheck(this, ReversibleTransform);
  10099. return _super3.apply(this, arguments);
  10100. }
  10101. _createClass(ReversibleTransform, [{
  10102. key: "filter",
  10103. value: function filter(x, offset, length) {
  10104. var len = length >> 1;
  10105. offset |= 0;
  10106. var j, n;
  10107. for (j = offset, n = len + 1; n--; j += 2) {
  10108. x[j] -= x[j - 1] + x[j + 1] + 2 >> 2;
  10109. }
  10110. for (j = offset + 1, n = len; n--; j += 2) {
  10111. x[j] += x[j - 1] + x[j + 1] >> 1;
  10112. }
  10113. }
  10114. }]);
  10115. return ReversibleTransform;
  10116. }(Transform);
  10117. /***/ })
  10118. /******/ ]);
  10119. /************************************************************************/
  10120. /******/ // The module cache
  10121. /******/ var __webpack_module_cache__ = {};
  10122. /******/
  10123. /******/ // The require function
  10124. /******/ function __w_pdfjs_require__(moduleId) {
  10125. /******/ // Check if module is in cache
  10126. /******/ var cachedModule = __webpack_module_cache__[moduleId];
  10127. /******/ if (cachedModule !== undefined) {
  10128. /******/ return cachedModule.exports;
  10129. /******/ }
  10130. /******/ // Create a new module (and put it into the cache)
  10131. /******/ var module = __webpack_module_cache__[moduleId] = {
  10132. /******/ id: moduleId,
  10133. /******/ loaded: false,
  10134. /******/ exports: {}
  10135. /******/ };
  10136. /******/
  10137. /******/ // Execute the module function
  10138. /******/ __webpack_modules__[moduleId](module, module.exports, __w_pdfjs_require__);
  10139. /******/
  10140. /******/ // Flag the module as loaded
  10141. /******/ module.loaded = true;
  10142. /******/
  10143. /******/ // Return the exports of the module
  10144. /******/ return module.exports;
  10145. /******/ }
  10146. /******/
  10147. /************************************************************************/
  10148. /******/ /* webpack/runtime/node module decorator */
  10149. /******/ (() => {
  10150. /******/ __w_pdfjs_require__.nmd = (module) => {
  10151. /******/ module.paths = [];
  10152. /******/ if (!module.children) module.children = [];
  10153. /******/ return module;
  10154. /******/ };
  10155. /******/ })();
  10156. /******/
  10157. /************************************************************************/
  10158. var __webpack_exports__ = {};
  10159. // This entry need to be wrapped in an IIFE because it need to be in strict mode.
  10160. (() => {
  10161. "use strict";
  10162. var exports = __webpack_exports__;
  10163. Object.defineProperty(exports, "__esModule", ({
  10164. value: true
  10165. }));
  10166. Object.defineProperty(exports, "getVerbosityLevel", ({
  10167. enumerable: true,
  10168. get: function get() {
  10169. return _util.getVerbosityLevel;
  10170. }
  10171. }));
  10172. Object.defineProperty(exports, "setVerbosityLevel", ({
  10173. enumerable: true,
  10174. get: function get() {
  10175. return _util.setVerbosityLevel;
  10176. }
  10177. }));
  10178. Object.defineProperty(exports, "Jbig2Image", ({
  10179. enumerable: true,
  10180. get: function get() {
  10181. return _jbig.Jbig2Image;
  10182. }
  10183. }));
  10184. Object.defineProperty(exports, "JpegImage", ({
  10185. enumerable: true,
  10186. get: function get() {
  10187. return _jpg.JpegImage;
  10188. }
  10189. }));
  10190. Object.defineProperty(exports, "JpxImage", ({
  10191. enumerable: true,
  10192. get: function get() {
  10193. return _jpx.JpxImage;
  10194. }
  10195. }));
  10196. var _util = __w_pdfjs_require__(1);
  10197. var _jbig = __w_pdfjs_require__(86);
  10198. var _jpg = __w_pdfjs_require__(94);
  10199. var _jpx = __w_pdfjs_require__(95);
  10200. var pdfjsVersion = '2.11.338';
  10201. var pdfjsBuild = 'dedff3c98';
  10202. })();
  10203. /******/ return __webpack_exports__;
  10204. /******/ })()
  10205. ;
  10206. });
  10207. //# sourceMappingURL=pdf.image_decoders.js.map