text: /**
   * @licstart The following is the entire license notice for the
   * Javascript code in this page
   *
   * Copyright 2021 Mozilla Foundation
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   * @licend The above is the entire license notice for the
   * Javascript code in this page
   */
  
  (function webpackUniversalModuleDefinition(root, factory) {
  	if(typeof exports === 'object' && typeof module === 'object')
  		module.exports = factory();
  	else if(typeof define === 'function' && define.amd)
  		define("pdfjs-dist/image_decoders/pdf.image_decoders", [], factory);
  	else if(typeof exports === 'object')
  		exports["pdfjs-dist/image_decoders/pdf.image_decoders"] = factory();
  	else
  		root["pdfjs-dist/image_decoders/pdf.image_decoders"] = root.pdfjsImageDecoders = factory();
  })(this, function() {
  return /******/ (() => { // webpackBootstrap
  /******/ 	"use strict";
  /******/ 	var __webpack_modules__ = ([
  /* 0 */,
  /* 1 */
  /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  exports.arrayByteLength = arrayByteLength;
  exports.arraysToBytes = arraysToBytes;
  exports.assert = assert;
  exports.bytesToString = bytesToString;
  exports.createObjectURL = createObjectURL;
  exports.createPromiseCapability = createPromiseCapability;
  exports.createValidAbsoluteUrl = createValidAbsoluteUrl;
  exports.escapeString = escapeString;
  exports.getModificationDate = getModificationDate;
  exports.getVerbosityLevel = getVerbosityLevel;
  exports.info = info;
  exports.isArrayBuffer = isArrayBuffer;
  exports.isArrayEqual = isArrayEqual;
  exports.isAscii = isAscii;
  exports.isBool = isBool;
  exports.isNum = isNum;
  exports.isSameOrigin = isSameOrigin;
  exports.isString = isString;
  exports.objectFromMap = objectFromMap;
  exports.objectSize = objectSize;
  exports.removeNullCharacters = removeNullCharacters;
  exports.setVerbosityLevel = setVerbosityLevel;
  exports.shadow = shadow;
  exports.string32 = string32;
  exports.stringToBytes = stringToBytes;
  exports.stringToPDFString = stringToPDFString;
  exports.stringToUTF16BEString = stringToUTF16BEString;
  exports.stringToUTF8String = stringToUTF8String;
  exports.unreachable = unreachable;
  exports.utf8StringToString = utf8StringToString;
  exports.warn = warn;
  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;
  
  __w_pdfjs_require__(2);
  
  const IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
  exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
  const FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
  exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
  const RenderingIntentFlag = {
    ANY: 0x01,
    DISPLAY: 0x02,
    PRINT: 0x04,
    ANNOTATIONS_FORMS: 0x10,
    ANNOTATIONS_STORAGE: 0x20,
    ANNOTATIONS_DISABLE: 0x40,
    OPLIST: 0x100
  };
  exports.RenderingIntentFlag = RenderingIntentFlag;
  const AnnotationMode = {
    DISABLE: 0,
    ENABLE: 1,
    ENABLE_FORMS: 2,
    ENABLE_STORAGE: 3
  };
  exports.AnnotationMode = AnnotationMode;
  const PermissionFlag = {
    PRINT: 0x04,
    MODIFY_CONTENTS: 0x08,
    COPY: 0x10,
    MODIFY_ANNOTATIONS: 0x20,
    FILL_INTERACTIVE_FORMS: 0x100,
    COPY_FOR_ACCESSIBILITY: 0x200,
    ASSEMBLE: 0x400,
    PRINT_HIGH_QUALITY: 0x800
  };
  exports.PermissionFlag = PermissionFlag;
  const TextRenderingMode = {
    FILL: 0,
    STROKE: 1,
    FILL_STROKE: 2,
    INVISIBLE: 3,
    FILL_ADD_TO_PATH: 4,
    STROKE_ADD_TO_PATH: 5,
    FILL_STROKE_ADD_TO_PATH: 6,
    ADD_TO_PATH: 7,
    FILL_STROKE_MASK: 3,
    ADD_TO_PATH_FLAG: 4
  };
  exports.TextRenderingMode = TextRenderingMode;
  const ImageKind = {
    GRAYSCALE_1BPP: 1,
    RGB_24BPP: 2,
    RGBA_32BPP: 3
  };
  exports.ImageKind = ImageKind;
  const AnnotationType = {
    TEXT: 1,
    LINK: 2,
    FREETEXT: 3,
    LINE: 4,
    SQUARE: 5,
    CIRCLE: 6,
    POLYGON: 7,
    POLYLINE: 8,
    HIGHLIGHT: 9,
    UNDERLINE: 10,
    SQUIGGLY: 11,
    STRIKEOUT: 12,
    STAMP: 13,
    CARET: 14,
    INK: 15,
    POPUP: 16,
    FILEATTACHMENT: 17,
    SOUND: 18,
    MOVIE: 19,
    WIDGET: 20,
    SCREEN: 21,
    PRINTERMARK: 22,
    TRAPNET: 23,
    WATERMARK: 24,
    THREED: 25,
    REDACT: 26
  };
  exports.AnnotationType = AnnotationType;
  const AnnotationStateModelType = {
    MARKED: "Marked",
    REVIEW: "Review"
  };
  exports.AnnotationStateModelType = AnnotationStateModelType;
  const AnnotationMarkedState = {
    MARKED: "Marked",
    UNMARKED: "Unmarked"
  };
  exports.AnnotationMarkedState = AnnotationMarkedState;
  const AnnotationReviewState = {
    ACCEPTED: "Accepted",
    REJECTED: "Rejected",
    CANCELLED: "Cancelled",
    COMPLETED: "Completed",
    NONE: "None"
  };
  exports.AnnotationReviewState = AnnotationReviewState;
  const AnnotationReplyType = {
    GROUP: "Group",
    REPLY: "R"
  };
  exports.AnnotationReplyType = AnnotationReplyType;
  const AnnotationFlag = {
    INVISIBLE: 0x01,
    HIDDEN: 0x02,
    PRINT: 0x04,
    NOZOOM: 0x08,
    NOROTATE: 0x10,
    NOVIEW: 0x20,
    READONLY: 0x40,
    LOCKED: 0x80,
    TOGGLENOVIEW: 0x100,
    LOCKEDCONTENTS: 0x200
  };
  exports.AnnotationFlag = AnnotationFlag;
  const AnnotationFieldFlag = {
    READONLY: 0x0000001,
    REQUIRED: 0x0000002,
    NOEXPORT: 0x0000004,
    MULTILINE: 0x0001000,
    PASSWORD: 0x0002000,
    NOTOGGLETOOFF: 0x0004000,
    RADIO: 0x0008000,
    PUSHBUTTON: 0x0010000,
    COMBO: 0x0020000,
    EDIT: 0x0040000,
    SORT: 0x0080000,
    FILESELECT: 0x0100000,
    MULTISELECT: 0x0200000,
    DONOTSPELLCHECK: 0x0400000,
    DONOTSCROLL: 0x0800000,
    COMB: 0x1000000,
    RICHTEXT: 0x2000000,
    RADIOSINUNISON: 0x2000000,
    COMMITONSELCHANGE: 0x4000000
  };
  exports.AnnotationFieldFlag = AnnotationFieldFlag;
  const AnnotationBorderStyleType = {
    SOLID: 1,
    DASHED: 2,
    BEVELED: 3,
    INSET: 4,
    UNDERLINE: 5
  };
  exports.AnnotationBorderStyleType = AnnotationBorderStyleType;
  const AnnotationActionEventType = {
    E: "Mouse Enter",
    X: "Mouse Exit",
    D: "Mouse Down",
    U: "Mouse Up",
    Fo: "Focus",
    Bl: "Blur",
    PO: "PageOpen",
    PC: "PageClose",
    PV: "PageVisible",
    PI: "PageInvisible",
    K: "Keystroke",
    F: "Format",
    V: "Validate",
    C: "Calculate"
  };
  exports.AnnotationActionEventType = AnnotationActionEventType;
  const DocumentActionEventType = {
    WC: "WillClose",
    WS: "WillSave",
    DS: "DidSave",
    WP: "WillPrint",
    DP: "DidPrint"
  };
  exports.DocumentActionEventType = DocumentActionEventType;
  const PageActionEventType = {
    O: "PageOpen",
    C: "PageClose"
  };
  exports.PageActionEventType = PageActionEventType;
  const StreamType = {
    UNKNOWN: "UNKNOWN",
    FLATE: "FLATE",
    LZW: "LZW",
    DCT: "DCT",
    JPX: "JPX",
    JBIG: "JBIG",
    A85: "A85",
    AHX: "AHX",
    CCF: "CCF",
    RLX: "RLX"
  };
  exports.StreamType = StreamType;
  const FontType = {
    UNKNOWN: "UNKNOWN",
    TYPE1: "TYPE1",
    TYPE1STANDARD: "TYPE1STANDARD",
    TYPE1C: "TYPE1C",
    CIDFONTTYPE0: "CIDFONTTYPE0",
    CIDFONTTYPE0C: "CIDFONTTYPE0C",
    TRUETYPE: "TRUETYPE",
    CIDFONTTYPE2: "CIDFONTTYPE2",
    TYPE3: "TYPE3",
    OPENTYPE: "OPENTYPE",
    TYPE0: "TYPE0",
    MMTYPE1: "MMTYPE1"
  };
  exports.FontType = FontType;
  const VerbosityLevel = {
    ERRORS: 0,
    WARNINGS: 1,
    INFOS: 5
  };
  exports.VerbosityLevel = VerbosityLevel;
  const CMapCompressionType = {
    NONE: 0,
    BINARY: 1,
    STREAM: 2
  };
  exports.CMapCompressionType = CMapCompressionType;
  const OPS = {
    dependency: 1,
    setLineWidth: 2,
    setLineCap: 3,
    setLineJoin: 4,
    setMiterLimit: 5,
    setDash: 6,
    setRenderingIntent: 7,
    setFlatness: 8,
    setGState: 9,
    save: 10,
    restore: 11,
    transform: 12,
    moveTo: 13,
    lineTo: 14,
    curveTo: 15,
    curveTo2: 16,
    curveTo3: 17,
    closePath: 18,
    rectangle: 19,
    stroke: 20,
    closeStroke: 21,
    fill: 22,
    eoFill: 23,
    fillStroke: 24,
    eoFillStroke: 25,
    closeFillStroke: 26,
    closeEOFillStroke: 27,
    endPath: 28,
    clip: 29,
    eoClip: 30,
    beginText: 31,
    endText: 32,
    setCharSpacing: 33,
    setWordSpacing: 34,
    setHScale: 35,
    setLeading: 36,
    setFont: 37,
    setTextRenderingMode: 38,
    setTextRise: 39,
    moveText: 40,
    setLeadingMoveText: 41,
    setTextMatrix: 42,
    nextLine: 43,
    showText: 44,
    showSpacedText: 45,
    nextLineShowText: 46,
    nextLineSetSpacingShowText: 47,
    setCharWidth: 48,
    setCharWidthAndBounds: 49,
    setStrokeColorSpace: 50,
    setFillColorSpace: 51,
    setStrokeColor: 52,
    setStrokeColorN: 53,
    setFillColor: 54,
    setFillColorN: 55,
    setStrokeGray: 56,
    setFillGray: 57,
    setStrokeRGBColor: 58,
    setFillRGBColor: 59,
    setStrokeCMYKColor: 60,
    setFillCMYKColor: 61,
    shadingFill: 62,
    beginInlineImage: 63,
    beginImageData: 64,
    endInlineImage: 65,
    paintXObject: 66,
    markPoint: 67,
    markPointProps: 68,
    beginMarkedContent: 69,
    beginMarkedContentProps: 70,
    endMarkedContent: 71,
    beginCompat: 72,
    endCompat: 73,
    paintFormXObjectBegin: 74,
    paintFormXObjectEnd: 75,
    beginGroup: 76,
    endGroup: 77,
    beginAnnotations: 78,
    endAnnotations: 79,
    beginAnnotation: 80,
    endAnnotation: 81,
    paintJpegXObject: 82,
    paintImageMaskXObject: 83,
    paintImageMaskXObjectGroup: 84,
    paintImageXObject: 85,
    paintInlineImageXObject: 86,
    paintInlineImageXObjectGroup: 87,
    paintImageXObjectRepeat: 88,
    paintImageMaskXObjectRepeat: 89,
    paintSolidColorImageMask: 90,
    constructPath: 91
  };
  exports.OPS = OPS;
  const UNSUPPORTED_FEATURES = {
    unknown: "unknown",
    forms: "forms",
    javaScript: "javaScript",
    signatures: "signatures",
    smask: "smask",
    shadingPattern: "shadingPattern",
    font: "font",
    errorTilingPattern: "errorTilingPattern",
    errorExtGState: "errorExtGState",
    errorXObject: "errorXObject",
    errorFontLoadType3: "errorFontLoadType3",
    errorFontState: "errorFontState",
    errorFontMissing: "errorFontMissing",
    errorFontTranslate: "errorFontTranslate",
    errorColorSpace: "errorColorSpace",
    errorOperatorList: "errorOperatorList",
    errorFontToUnicode: "errorFontToUnicode",
    errorFontLoadNative: "errorFontLoadNative",
    errorFontBuildPath: "errorFontBuildPath",
    errorFontGetPath: "errorFontGetPath",
    errorMarkedContent: "errorMarkedContent",
    errorContentSubStream: "errorContentSubStream"
  };
  exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;
  const PasswordResponses = {
    NEED_PASSWORD: 1,
    INCORRECT_PASSWORD: 2
  };
  exports.PasswordResponses = PasswordResponses;
  let verbosity = VerbosityLevel.WARNINGS;
  
  function setVerbosityLevel(level) {
    if (Number.isInteger(level)) {
      verbosity = level;
    }
  }
  
  function getVerbosityLevel() {
    return verbosity;
  }
  
  function info(msg) {
    if (verbosity >= VerbosityLevel.INFOS) {
      console.log(`Info: ${msg}`);
    }
  }
  
  function warn(msg) {
    if (verbosity >= VerbosityLevel.WARNINGS) {
      console.log(`Warning: ${msg}`);
    }
  }
  
  function unreachable(msg) {
    throw new Error(msg);
  }
  
  function assert(cond, msg) {
    if (!cond) {
      unreachable(msg);
    }
  }
  
  function isSameOrigin(baseUrl, otherUrl) {
    let base;
  
    try {
      base = new URL(baseUrl);
  
      if (!base.origin || base.origin === "null") {
        return false;
      }
    } catch (e) {
      return false;
    }
  
    const other = new URL(otherUrl, base);
    return base.origin === other.origin;
  }
  
  function _isValidProtocol(url) {
    if (!url) {
      return false;
    }
  
    switch (url.protocol) {
      case "http:":
      case "https:":
      case "ftp:":
      case "mailto:":
      case "tel:":
        return true;
  
      default:
        return false;
    }
  }
  
  function createValidAbsoluteUrl(url, baseUrl = null, options = null) {
    if (!url) {
      return null;
    }
  
    try {
      if (options && typeof url === "string") {
        if (options.addDefaultProtocol && url.startsWith("www.")) {
          const dots = url.match(/\./g);
  
          if (dots && dots.length >= 2) {
            url = `http://${url}`;
          }
        }
  
        if (options.tryConvertEncoding) {
          try {
            url = stringToUTF8String(url);
          } catch (ex) {}
        }
      }
  
      const absoluteUrl = baseUrl ? new URL(url, baseUrl) : new URL(url);
  
      if (_isValidProtocol(absoluteUrl)) {
        return absoluteUrl;
      }
    } catch (ex) {}
  
    return null;
  }
  
  function shadow(obj, prop, value) {
    Object.defineProperty(obj, prop, {
      value,
      enumerable: true,
      configurable: true,
      writable: false
    });
    return value;
  }
  
  const BaseException = function BaseExceptionClosure() {
    function BaseException(message, name) {
      if (this.constructor === BaseException) {
        unreachable("Cannot initialize BaseException.");
      }
  
      this.message = message;
      this.name = name;
    }
  
    BaseException.prototype = new Error();
    BaseException.constructor = BaseException;
    return BaseException;
  }();
  
  exports.BaseException = BaseException;
  
  class PasswordException extends BaseException {
    constructor(msg, code) {
      super(msg, "PasswordException");
      this.code = code;
    }
  
  }
  
  exports.PasswordException = PasswordException;
  
  class UnknownErrorException extends BaseException {
    constructor(msg, details) {
      super(msg, "UnknownErrorException");
      this.details = details;
    }
  
  }
  
  exports.UnknownErrorException = UnknownErrorException;
  
  class InvalidPDFException extends BaseException {
    constructor(msg) {
      super(msg, "InvalidPDFException");
    }
  
  }
  
  exports.InvalidPDFException = InvalidPDFException;
  
  class MissingPDFException extends BaseException {
    constructor(msg) {
      super(msg, "MissingPDFException");
    }
  
  }
  
  exports.MissingPDFException = MissingPDFException;
  
  class UnexpectedResponseException extends BaseException {
    constructor(msg, status) {
      super(msg, "UnexpectedResponseException");
      this.status = status;
    }
  
  }
  
  exports.UnexpectedResponseException = UnexpectedResponseException;
  
  class FormatError extends BaseException {
    constructor(msg) {
      super(msg, "FormatError");
    }
  
  }
  
  exports.FormatError = FormatError;
  
  class AbortException extends BaseException {
    constructor(msg) {
      super(msg, "AbortException");
    }
  
  }
  
  exports.AbortException = AbortException;
  const NullCharactersRegExp = /\x00/g;
  
  function removeNullCharacters(str) {
    if (typeof str !== "string") {
      warn("The argument for removeNullCharacters must be a string.");
      return str;
    }
  
    return str.replace(NullCharactersRegExp, "");
  }
  
  function bytesToString(bytes) {
    assert(bytes !== null && typeof bytes === "object" && bytes.length !== undefined, "Invalid argument for bytesToString");
    const length = bytes.length;
    const MAX_ARGUMENT_COUNT = 8192;
  
    if (length < MAX_ARGUMENT_COUNT) {
      return String.fromCharCode.apply(null, bytes);
    }
  
    const strBuf = [];
  
    for (let i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
      const chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
      const chunk = bytes.subarray(i, chunkEnd);
      strBuf.push(String.fromCharCode.apply(null, chunk));
    }
  
    return strBuf.join("");
  }
  
  function stringToBytes(str) {
    assert(typeof str === "string", "Invalid argument for stringToBytes");
    const length = str.length;
    const bytes = new Uint8Array(length);
  
    for (let i = 0; i < length; ++i) {
      bytes[i] = str.charCodeAt(i) & 0xff;
    }
  
    return bytes;
  }
  
  function arrayByteLength(arr) {
    if (arr.length !== undefined) {
      return arr.length;
    }
  
    assert(arr.byteLength !== undefined, "arrayByteLength - invalid argument.");
    return arr.byteLength;
  }
  
  function arraysToBytes(arr) {
    const length = arr.length;
  
    if (length === 1 && arr[0] instanceof Uint8Array) {
      return arr[0];
    }
  
    let resultLength = 0;
  
    for (let i = 0; i < length; i++) {
      resultLength += arrayByteLength(arr[i]);
    }
  
    let pos = 0;
    const data = new Uint8Array(resultLength);
  
    for (let i = 0; i < length; i++) {
      let item = arr[i];
  
      if (!(item instanceof Uint8Array)) {
        if (typeof item === "string") {
          item = stringToBytes(item);
        } else {
          item = new Uint8Array(item);
        }
      }
  
      const itemLength = item.byteLength;
      data.set(item, pos);
      pos += itemLength;
    }
  
    return data;
  }
  
  function string32(value) {
    return String.fromCharCode(value >> 24 & 0xff, value >> 16 & 0xff, value >> 8 & 0xff, value & 0xff);
  }
  
  function objectSize(obj) {
    return Object.keys(obj).length;
  }
  
  function objectFromMap(map) {
    const obj = Object.create(null);
  
    for (const [key, value] of map) {
      obj[key] = value;
    }
  
    return obj;
  }
  
  function isLittleEndian() {
    const buffer8 = new Uint8Array(4);
    buffer8[0] = 1;
    const view32 = new Uint32Array(buffer8.buffer, 0, 1);
    return view32[0] === 1;
  }
  
  const IsLittleEndianCached = {
    get value() {
      return shadow(this, "value", isLittleEndian());
    }
  
  };
  exports.IsLittleEndianCached = IsLittleEndianCached;
  
  function isEvalSupported() {
    try {
      new Function("");
      return true;
    } catch (e) {
      return false;
    }
  }
  
  const IsEvalSupportedCached = {
    get value() {
      return shadow(this, "value", isEvalSupported());
    }
  
  };
  exports.IsEvalSupportedCached = IsEvalSupportedCached;
  const hexNumbers = [...Array(256).keys()].map(n => n.toString(16).padStart(2, "0"));
  
  class Util {
    static makeHexColor(r, g, b) {
      return `#${hexNumbers[r]}${hexNumbers[g]}${hexNumbers[b]}`;
    }
  
    static transform(m1, m2) {
      return [m1[0] * m2[0] + m1[2] * m2[1], m1[1] * m2[0] + m1[3] * m2[1], m1[0] * m2[2] + m1[2] * m2[3], m1[1] * m2[2] + m1[3] * m2[3], m1[0] * m2[4] + m1[2] * m2[5] + m1[4], m1[1] * m2[4] + m1[3] * m2[5] + m1[5]];
    }
  
    static applyTransform(p, m) {
      const xt = p[0] * m[0] + p[1] * m[2] + m[4];
      const yt = p[0] * m[1] + p[1] * m[3] + m[5];
      return [xt, yt];
    }
  
    static applyInverseTransform(p, m) {
      const d = m[0] * m[3] - m[1] * m[2];
      const xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
      const yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
      return [xt, yt];
    }
  
    static getAxialAlignedBoundingBox(r, m) {
      const p1 = Util.applyTransform(r, m);
      const p2 = Util.applyTransform(r.slice(2, 4), m);
      const p3 = Util.applyTransform([r[0], r[3]], m);
      const p4 = Util.applyTransform([r[2], r[1]], m);
      return [Math.min(p1[0], p2[0], p3[0], p4[0]), Math.min(p1[1], p2[1], p3[1], p4[1]), Math.max(p1[0], p2[0], p3[0], p4[0]), Math.max(p1[1], p2[1], p3[1], p4[1])];
    }
  
    static inverseTransform(m) {
      const d = m[0] * m[3] - m[1] * m[2];
      return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d, (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
    }
  
    static apply3dTransform(m, v) {
      return [m[0] * v[0] + m[1] * v[1] + m[2] * v[2], m[3] * v[0] + m[4] * v[1] + m[5] * v[2], m[6] * v[0] + m[7] * v[1] + m[8] * v[2]];
    }
  
    static singularValueDecompose2dScale(m) {
      const transpose = [m[0], m[2], m[1], m[3]];
      const a = m[0] * transpose[0] + m[1] * transpose[2];
      const b = m[0] * transpose[1] + m[1] * transpose[3];
      const c = m[2] * transpose[0] + m[3] * transpose[2];
      const d = m[2] * transpose[1] + m[3] * transpose[3];
      const first = (a + d) / 2;
      const second = Math.sqrt((a + d) ** 2 - 4 * (a * d - c * b)) / 2;
      const sx = first + second || 1;
      const sy = first - second || 1;
      return [Math.sqrt(sx), Math.sqrt(sy)];
    }
  
    static normalizeRect(rect) {
      const r = rect.slice(0);
  
      if (rect[0] > rect[2]) {
        r[0] = rect[2];
        r[2] = rect[0];
      }
  
      if (rect[1] > rect[3]) {
        r[1] = rect[3];
        r[3] = rect[1];
      }
  
      return r;
    }
  
    static intersect(rect1, rect2) {
      function compare(a, b) {
        return a - b;
      }
  
      const orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare);
      const orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare);
      const result = [];
      rect1 = Util.normalizeRect(rect1);
      rect2 = Util.normalizeRect(rect2);
  
      if (orderedX[0] === rect1[0] && orderedX[1] === rect2[0] || orderedX[0] === rect2[0] && orderedX[1] === rect1[0]) {
        result[0] = orderedX[1];
        result[2] = orderedX[2];
      } else {
        return null;
      }
  
      if (orderedY[0] === rect1[1] && orderedY[1] === rect2[1] || orderedY[0] === rect2[1] && orderedY[1] === rect1[1]) {
        result[1] = orderedY[1];
        result[3] = orderedY[2];
      } else {
        return null;
      }
  
      return result;
    }
  
  }
  
  exports.Util = Util;
  const PDFStringTranslateTable = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2d8, 0x2c7, 0x2c6, 0x2d9, 0x2dd, 0x2db, 0x2da, 0x2dc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014, 0x2013, 0x192, 0x2044, 0x2039, 0x203a, 0x2212, 0x2030, 0x201e, 0x201c, 0x201d, 0x2018, 0x2019, 0x201a, 0x2122, 0xfb01, 0xfb02, 0x141, 0x152, 0x160, 0x178, 0x17d, 0x131, 0x142, 0x153, 0x161, 0x17e, 0, 0x20ac];
  
  function stringToPDFString(str) {
    const length = str.length,
          strBuf = [];
  
    if (str[0] === "\xFE" && str[1] === "\xFF") {
      for (let i = 2; i < length; i += 2) {
        strBuf.push(String.fromCharCode(str.charCodeAt(i) << 8 | str.charCodeAt(i + 1)));
      }
    } else if (str[0] === "\xFF" && str[1] === "\xFE") {
      for (let i = 2; i < length; i += 2) {
        strBuf.push(String.fromCharCode(str.charCodeAt(i + 1) << 8 | str.charCodeAt(i)));
      }
    } else {
      for (let i = 0; i < length; ++i) {
        const code = PDFStringTranslateTable[str.charCodeAt(i)];
        strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
      }
    }
  
    return strBuf.join("");
  }
  
  function escapeString(str) {
    return str.replace(/([()\\\n\r])/g, match => {
      if (match === "\n") {
        return "\\n";
      } else if (match === "\r") {
        return "\\r";
      }
  
      return `\\${match}`;
    });
  }
  
  function isAscii(str) {
    return /^[\x00-\x7F]*$/.test(str);
  }
  
  function stringToUTF16BEString(str) {
    const buf = ["\xFE\xFF"];
  
    for (let i = 0, ii = str.length; i < ii; i++) {
      const char = str.charCodeAt(i);
      buf.push(String.fromCharCode(char >> 8 & 0xff), String.fromCharCode(char & 0xff));
    }
  
    return buf.join("");
  }
  
  function stringToUTF8String(str) {
    return decodeURIComponent(escape(str));
  }
  
  function utf8StringToString(str) {
    return unescape(encodeURIComponent(str));
  }
  
  function isBool(v) {
    return typeof v === "boolean";
  }
  
  function isNum(v) {
    return typeof v === "number";
  }
  
  function isString(v) {
    return typeof v === "string";
  }
  
  function isArrayBuffer(v) {
    return typeof v === "object" && v !== null && v.byteLength !== undefined;
  }
  
  function isArrayEqual(arr1, arr2) {
    if (arr1.length !== arr2.length) {
      return false;
    }
  
    for (let i = 0, ii = arr1.length; i < ii; i++) {
      if (arr1[i] !== arr2[i]) {
        return false;
      }
    }
  
    return true;
  }
  
  function getModificationDate(date = new Date()) {
    const 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")];
    return buffer.join("");
  }
  
  function createPromiseCapability() {
    const capability = Object.create(null);
    let isSettled = false;
    Object.defineProperty(capability, "settled", {
      get() {
        return isSettled;
      }
  
    });
    capability.promise = new Promise(function (resolve, reject) {
      capability.resolve = function (data) {
        isSettled = true;
        resolve(data);
      };
  
      capability.reject = function (reason) {
        isSettled = true;
        reject(reason);
      };
    });
    return capability;
  }
  
  function createObjectURL(data, contentType = "", forceDataSchema = false) {
    if (URL.createObjectURL && !forceDataSchema) {
      return URL.createObjectURL(new Blob([data], {
        type: contentType
      }));
    }
  
    const digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
    let buffer = `data:${contentType};base64,`;
  
    for (let i = 0, ii = data.length; i < ii; i += 3) {
      const b1 = data[i] & 0xff;
      const b2 = data[i + 1] & 0xff;
      const b3 = data[i + 2] & 0xff;
      const d1 = b1 >> 2,
            d2 = (b1 & 3) << 4 | b2 >> 4;
      const d3 = i + 1 < ii ? (b2 & 0xf) << 2 | b3 >> 6 : 64;
      const d4 = i + 2 < ii ? b3 & 0x3f : 64;
      buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
    }
  
    return buffer;
  }
  
  /***/ }),
  /* 2 */
  /***/ ((__unused_webpack_module, __unused_webpack_exports, __w_pdfjs_require__) => {
  
  
  
  var _is_node = __w_pdfjs_require__(3);
  
  ;
  
  /***/ }),
  /* 3 */
  /***/ ((__unused_webpack_module, exports) => {
  
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  exports.isNodeJS = void 0;
  const isNodeJS = typeof process === "object" && process + "" === "[object process]" && !process.versions.nw && !(process.versions.electron && process.type && process.type !== "browser");
  exports.isNodeJS = isNodeJS;
  
  /***/ }),
  /* 4 */
  /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  exports.Jbig2Image = void 0;
  
  var _util = __w_pdfjs_require__(1);
  
  var _core_utils = __w_pdfjs_require__(5);
  
  var _arithmetic_decoder = __w_pdfjs_require__(8);
  
  var _ccitt = __w_pdfjs_require__(9);
  
  class Jbig2Error extends _util.BaseException {
    constructor(msg) {
      super(`JBIG2 error: ${msg}`, "Jbig2Error");
    }
  
  }
  
  class ContextCache {
    getContexts(id) {
      if (id in this) {
        return this[id];
      }
  
      return this[id] = new Int8Array(1 << 16);
    }
  
  }
  
  class DecodingContext {
    constructor(data, start, end) {
      this.data = data;
      this.start = start;
      this.end = end;
    }
  
    get decoder() {
      const decoder = new _arithmetic_decoder.ArithmeticDecoder(this.data, this.start, this.end);
      return (0, _util.shadow)(this, "decoder", decoder);
    }
  
    get contextCache() {
      const cache = new ContextCache();
      return (0, _util.shadow)(this, "contextCache", cache);
    }
  
  }
  
  function decodeInteger(contextCache, procedure, decoder) {
    const contexts = contextCache.getContexts(procedure);
    let prev = 1;
  
    function readBits(length) {
      let v = 0;
  
      for (let i = 0; i < length; i++) {
        const bit = decoder.readBit(contexts, prev);
        prev = prev < 256 ? prev << 1 | bit : (prev << 1 | bit) & 511 | 256;
        v = v << 1 | bit;
      }
  
      return v >>> 0;
    }
  
    const sign = readBits(1);
    const 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);
  
    if (sign === 0) {
      return value;
    } else if (value > 0) {
      return -value;
    }
  
    return null;
  }
  
  function decodeIAID(contextCache, decoder, codeLength) {
    const contexts = contextCache.getContexts("IAID");
    let prev = 1;
  
    for (let i = 0; i < codeLength; i++) {
      const bit = decoder.readBit(contexts, prev);
      prev = prev << 1 | bit;
    }
  
    if (codeLength < 31) {
      return prev & (1 << codeLength) - 1;
    }
  
    return prev & 0x7fffffff;
  }
  
  const 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"];
  const CodingTemplates = [[{
    x: -1,
    y: -2
  }, {
    x: 0,
    y: -2
  }, {
    x: 1,
    y: -2
  }, {
    x: -2,
    y: -1
  }, {
    x: -1,
    y: -1
  }, {
    x: 0,
    y: -1
  }, {
    x: 1,
    y: -1
  }, {
    x: 2,
    y: -1
  }, {
    x: -4,
    y: 0
  }, {
    x: -3,
    y: 0
  }, {
    x: -2,
    y: 0
  }, {
    x: -1,
    y: 0
  }], [{
    x: -1,
    y: -2
  }, {
    x: 0,
    y: -2
  }, {
    x: 1,
    y: -2
  }, {
    x: 2,
    y: -2
  }, {
    x: -2,
    y: -1
  }, {
    x: -1,
    y: -1
  }, {
    x: 0,
    y: -1
  }, {
    x: 1,
    y: -1
  }, {
    x: 2,
    y: -1
  }, {
    x: -3,
    y: 0
  }, {
    x: -2,
    y: 0
  }, {
    x: -1,
    y: 0
  }], [{
    x: -1,
    y: -2
  }, {
    x: 0,
    y: -2
  }, {
    x: 1,
    y: -2
  }, {
    x: -2,
    y: -1
  }, {
    x: -1,
    y: -1
  }, {
    x: 0,
    y: -1
  }, {
    x: 1,
    y: -1
  }, {
    x: -2,
    y: 0
  }, {
    x: -1,
    y: 0
  }], [{
    x: -3,
    y: -1
  }, {
    x: -2,
    y: -1
  }, {
    x: -1,
    y: -1
  }, {
    x: 0,
    y: -1
  }, {
    x: 1,
    y: -1
  }, {
    x: -4,
    y: 0
  }, {
    x: -3,
    y: 0
  }, {
    x: -2,
    y: 0
  }, {
    x: -1,
    y: 0
  }]];
  const RefinementTemplates = [{
    coding: [{
      x: 0,
      y: -1
    }, {
      x: 1,
      y: -1
    }, {
      x: -1,
      y: 0
    }],
    reference: [{
      x: 0,
      y: -1
    }, {
      x: 1,
      y: -1
    }, {
      x: -1,
      y: 0
    }, {
      x: 0,
      y: 0
    }, {
      x: 1,
      y: 0
    }, {
      x: -1,
      y: 1
    }, {
      x: 0,
      y: 1
    }, {
      x: 1,
      y: 1
    }]
  }, {
    coding: [{
      x: -1,
      y: -1
    }, {
      x: 0,
      y: -1
    }, {
      x: 1,
      y: -1
    }, {
      x: -1,
      y: 0
    }],
    reference: [{
      x: 0,
      y: -1
    }, {
      x: -1,
      y: 0
    }, {
      x: 0,
      y: 0
    }, {
      x: 1,
      y: 0
    }, {
      x: 0,
      y: 1
    }, {
      x: 1,
      y: 1
    }]
  }];
  const ReusedContexts = [0x9b25, 0x0795, 0x00e5, 0x0195];
  const RefinementReusedContexts = [0x0020, 0x0008];
  
  function decodeBitmapTemplate0(width, height, decodingContext) {
    const decoder = decodingContext.decoder;
    const contexts = decodingContext.contextCache.getContexts("GB");
    const bitmap = [];
    let contextLabel, i, j, pixel, row, row1, row2;
    const OLD_PIXEL_MASK = 0x7bf7;
  
    for (i = 0; i < height; i++) {
      row = bitmap[i] = new Uint8Array(width);
      row1 = i < 1 ? row : bitmap[i - 1];
      row2 = i < 2 ? row : bitmap[i - 2];
      contextLabel = row2[0] << 13 | row2[1] << 12 | row2[2] << 11 | row1[0] << 7 | row1[1] << 6 | row1[2] << 5 | row1[3] << 4;
  
      for (j = 0; j < width; j++) {
        row[j] = pixel = decoder.readBit(contexts, contextLabel);
        contextLabel = (contextLabel & OLD_PIXEL_MASK) << 1 | (j + 3 < width ? row2[j + 3] << 11 : 0) | (j + 4 < width ? row1[j + 4] << 4 : 0) | pixel;
      }
    }
  
    return bitmap;
  }
  
  function decodeBitmap(mmr, width, height, templateIndex, prediction, skip, at, decodingContext) {
    if (mmr) {
      const input = new Reader(decodingContext.data, decodingContext.start, decodingContext.end);
      return decodeMMRBitmap(input, width, height, false);
    }
  
    if (templateIndex === 0 && !skip && !prediction && at.length === 4 && at[0].x === 3 && at[0].y === -1 && at[1].x === -3 && at[1].y === -1 && at[2].x === 2 && at[2].y === -2 && at[3].x === -2 && at[3].y === -2) {
      return decodeBitmapTemplate0(width, height, decodingContext);
    }
  
    const useskip = !!skip;
    const template = CodingTemplates[templateIndex].concat(at);
    template.sort(function (a, b) {
      return a.y - b.y || a.x - b.x;
    });
    const templateLength = template.length;
    const templateX = new Int8Array(templateLength);
    const templateY = new Int8Array(templateLength);
    const changingTemplateEntries = [];
    let reuseMask = 0,
        minX = 0,
        maxX = 0,
        minY = 0;
    let c, k;
  
    for (k = 0; k < templateLength; k++) {
      templateX[k] = template[k].x;
      templateY[k] = template[k].y;
      minX = Math.min(minX, template[k].x);
      maxX = Math.max(maxX, template[k].x);
      minY = Math.min(minY, template[k].y);
  
      if (k < templateLength - 1 && template[k].y === template[k + 1].y && template[k].x === template[k + 1].x - 1) {
        reuseMask |= 1 << templateLength - 1 - k;
      } else {
        changingTemplateEntries.push(k);
      }
    }
  
    const changingEntriesLength = changingTemplateEntries.length;
    const changingTemplateX = new Int8Array(changingEntriesLength);
    const changingTemplateY = new Int8Array(changingEntriesLength);
    const changingTemplateBit = new Uint16Array(changingEntriesLength);
  
    for (c = 0; c < changingEntriesLength; c++) {
      k = changingTemplateEntries[c];
      changingTemplateX[c] = template[k].x;
      changingTemplateY[c] = template[k].y;
      changingTemplateBit[c] = 1 << templateLength - 1 - k;
    }
  
    const sbb_left = -minX;
    const sbb_top = -minY;
    const sbb_right = width - maxX;
    const pseudoPixelContext = ReusedContexts[templateIndex];
    let row = new Uint8Array(width);
    const bitmap = [];
    const decoder = decodingContext.decoder;
    const contexts = decodingContext.contextCache.getContexts("GB");
    let ltp = 0,
        j,
        i0,
        j0,
        contextLabel = 0,
        bit,
        shift;
  
    for (let i = 0; i < height; i++) {
      if (prediction) {
        const sltp = decoder.readBit(contexts, pseudoPixelContext);
        ltp ^= sltp;
  
        if (ltp) {
          bitmap.push(row);
          continue;
        }
      }
  
      row = new Uint8Array(row);
      bitmap.push(row);
  
      for (j = 0; j < width; j++) {
        if (useskip && skip[i][j]) {
          row[j] = 0;
          continue;
        }
  
        if (j >= sbb_left && j < sbb_right && i >= sbb_top) {
          contextLabel = contextLabel << 1 & reuseMask;
  
          for (k = 0; k < changingEntriesLength; k++) {
            i0 = i + changingTemplateY[k];
            j0 = j + changingTemplateX[k];
            bit = bitmap[i0][j0];
  
            if (bit) {
              bit = changingTemplateBit[k];
              contextLabel |= bit;
            }
          }
        } else {
          contextLabel = 0;
          shift = templateLength - 1;
  
          for (k = 0; k < templateLength; k++, shift--) {
            j0 = j + templateX[k];
  
            if (j0 >= 0 && j0 < width) {
              i0 = i + templateY[k];
  
              if (i0 >= 0) {
                bit = bitmap[i0][j0];
  
                if (bit) {
                  contextLabel |= bit << shift;
                }
              }
            }
          }
        }
  
        const pixel = decoder.readBit(contexts, contextLabel);
        row[j] = pixel;
      }
    }
  
    return bitmap;
  }
  
  function decodeRefinement(width, height, templateIndex, referenceBitmap, offsetX, offsetY, prediction, at, decodingContext) {
    let codingTemplate = RefinementTemplates[templateIndex].coding;
  
    if (templateIndex === 0) {
      codingTemplate = codingTemplate.concat([at[0]]);
    }
  
    const codingTemplateLength = codingTemplate.length;
    const codingTemplateX = new Int32Array(codingTemplateLength);
    const codingTemplateY = new Int32Array(codingTemplateLength);
    let k;
  
    for (k = 0; k < codingTemplateLength; k++) {
      codingTemplateX[k] = codingTemplate[k].x;
      codingTemplateY[k] = codingTemplate[k].y;
    }
  
    let referenceTemplate = RefinementTemplates[templateIndex].reference;
  
    if (templateIndex === 0) {
      referenceTemplate = referenceTemplate.concat([at[1]]);
    }
  
    const referenceTemplateLength = referenceTemplate.length;
    const referenceTemplateX = new Int32Array(referenceTemplateLength);
    const referenceTemplateY = new Int32Array(referenceTemplateLength);
  
    for (k = 0; k < referenceTemplateLength; k++) {
      referenceTemplateX[k] = referenceTemplate[k].x;
      referenceTemplateY[k] = referenceTemplate[k].y;
    }
  
    const referenceWidth = referenceBitmap[0].length;
    const referenceHeight = referenceBitmap.length;
    const pseudoPixelContext = RefinementReusedContexts[templateIndex];
    const bitmap = [];
    const decoder = decodingContext.decoder;
    const contexts = decodingContext.contextCache.getContexts("GR");
    let ltp = 0;
  
    for (let i = 0; i < height; i++) {
      if (prediction) {
        const sltp = decoder.readBit(contexts, pseudoPixelContext);
        ltp ^= sltp;
  
        if (ltp) {
          throw new Jbig2Error("prediction is not supported");
        }
      }
  
      const row = new Uint8Array(width);
      bitmap.push(row);
  
      for (let j = 0; j < width; j++) {
        let i0, j0;
        let contextLabel = 0;
  
        for (k = 0; k < codingTemplateLength; k++) {
          i0 = i + codingTemplateY[k];
          j0 = j + codingTemplateX[k];
  
          if (i0 < 0 || j0 < 0 || j0 >= width) {
            contextLabel <<= 1;
          } else {
            contextLabel = contextLabel << 1 | bitmap[i0][j0];
          }
        }
  
        for (k = 0; k < referenceTemplateLength; k++) {
          i0 = i + referenceTemplateY[k] - offsetY;
          j0 = j + referenceTemplateX[k] - offsetX;
  
          if (i0 < 0 || i0 >= referenceHeight || j0 < 0 || j0 >= referenceWidth) {
            contextLabel <<= 1;
          } else {
            contextLabel = contextLabel << 1 | referenceBitmap[i0][j0];
          }
        }
  
        const pixel = decoder.readBit(contexts, contextLabel);
        row[j] = pixel;
      }
    }
  
    return bitmap;
  }
  
  function decodeSymbolDictionary(huffman, refinement, symbols, numberOfNewSymbols, numberOfExportedSymbols, huffmanTables, templateIndex, at, refinementTemplateIndex, refinementAt, decodingContext, huffmanInput) {
    if (huffman && refinement) {
      throw new Jbig2Error("symbol refinement with Huffman is not supported");
    }
  
    const newSymbols = [];
    let currentHeight = 0;
    let symbolCodeLength = (0, _core_utils.log2)(symbols.length + numberOfNewSymbols);
    const decoder = decodingContext.decoder;
    const contextCache = decodingContext.contextCache;
    let tableB1, symbolWidths;
  
    if (huffman) {
      tableB1 = getStandardTable(1);
      symbolWidths = [];
      symbolCodeLength = Math.max(symbolCodeLength, 1);
    }
  
    while (newSymbols.length < numberOfNewSymbols) {
      const deltaHeight = huffman ? huffmanTables.tableDeltaHeight.decode(huffmanInput) : decodeInteger(contextCache, "IADH", decoder);
      currentHeight += deltaHeight;
      let currentWidth = 0,
          totalWidth = 0;
      const firstSymbol = huffman ? symbolWidths.length : 0;
  
      while (true) {
        const deltaWidth = huffman ? huffmanTables.tableDeltaWidth.decode(huffmanInput) : decodeInteger(contextCache, "IADW", decoder);
  
        if (deltaWidth === null) {
          break;
        }
  
        currentWidth += deltaWidth;
        totalWidth += currentWidth;
        let bitmap;
  
        if (refinement) {
          const numberOfInstances = decodeInteger(contextCache, "IAAI", decoder);
  
          if (numberOfInstances > 1) {
            bitmap = decodeTextRegion(huffman, refinement, currentWidth, currentHeight, 0, numberOfInstances, 1, symbols.concat(newSymbols), symbolCodeLength, 0, 0, 1, 0, huffmanTables, refinementTemplateIndex, refinementAt, decodingContext, 0, huffmanInput);
          } else {
            const symbolId = decodeIAID(contextCache, decoder, symbolCodeLength);
            const rdx = decodeInteger(contextCache, "IARDX", decoder);
            const rdy = decodeInteger(contextCache, "IARDY", decoder);
            const symbol = symbolId < symbols.length ? symbols[symbolId] : newSymbols[symbolId - symbols.length];
            bitmap = decodeRefinement(currentWidth, currentHeight, refinementTemplateIndex, symbol, rdx, rdy, false, refinementAt, decodingContext);
          }
  
          newSymbols.push(bitmap);
        } else if (huffman) {
          symbolWidths.push(currentWidth);
        } else {
          bitmap = decodeBitmap(false, currentWidth, currentHeight, templateIndex, false, null, at, decodingContext);
          newSymbols.push(bitmap);
        }
      }
  
      if (huffman && !refinement) {
        const bitmapSize = huffmanTables.tableBitmapSize.decode(huffmanInput);
        huffmanInput.byteAlign();
        let collectiveBitmap;
  
        if (bitmapSize === 0) {
          collectiveBitmap = readUncompressedBitmap(huffmanInput, totalWidth, currentHeight);
        } else {
          const originalEnd = huffmanInput.end;
          const bitmapEnd = huffmanInput.position + bitmapSize;
          huffmanInput.end = bitmapEnd;
          collectiveBitmap = decodeMMRBitmap(huffmanInput, totalWidth, currentHeight, false);
          huffmanInput.end = originalEnd;
          huffmanInput.position = bitmapEnd;
        }
  
        const numberOfSymbolsDecoded = symbolWidths.length;
  
        if (firstSymbol === numberOfSymbolsDecoded - 1) {
          newSymbols.push(collectiveBitmap);
        } else {
          let i,
              y,
              xMin = 0,
              xMax,
              bitmapWidth,
              symbolBitmap;
  
          for (i = firstSymbol; i < numberOfSymbolsDecoded; i++) {
            bitmapWidth = symbolWidths[i];
            xMax = xMin + bitmapWidth;
            symbolBitmap = [];
  
            for (y = 0; y < currentHeight; y++) {
              symbolBitmap.push(collectiveBitmap[y].subarray(xMin, xMax));
            }
  
            newSymbols.push(symbolBitmap);
            xMin = xMax;
          }
        }
      }
    }
  
    const exportedSymbols = [],
          flags = [];
    let currentFlag = false,
        i,
        ii;
    const totalSymbolsLength = symbols.length + numberOfNewSymbols;
  
    while (flags.length < totalSymbolsLength) {
      let runLength = huffman ? tableB1.decode(huffmanInput) : decodeInteger(contextCache, "IAEX", decoder);
  
      while (runLength--) {
        flags.push(currentFlag);
      }
  
      currentFlag = !currentFlag;
    }
  
    for (i = 0, ii = symbols.length; i < ii; i++) {
      if (flags[i]) {
        exportedSymbols.push(symbols[i]);
      }
    }
  
    for (let j = 0; j < numberOfNewSymbols; i++, j++) {
      if (flags[i]) {
        exportedSymbols.push(newSymbols[j]);
      }
    }
  
    return exportedSymbols;
  }
  
  function decodeTextRegion(huffman, refinement, width, height, defaultPixelValue, numberOfSymbolInstances, stripSize, inputSymbols, symbolCodeLength, transposed, dsOffset, referenceCorner, combinationOperator, huffmanTables, refinementTemplateIndex, refinementAt, decodingContext, logStripSize, huffmanInput) {
    if (huffman && refinement) {
      throw new Jbig2Error("refinement with Huffman is not supported");
    }
  
    const bitmap = [];
    let i, row;
  
    for (i = 0; i < height; i++) {
      row = new Uint8Array(width);
  
      if (defaultPixelValue) {
        for (let j = 0; j < width; j++) {
          row[j] = defaultPixelValue;
        }
      }
  
      bitmap.push(row);
    }
  
    const decoder = decodingContext.decoder;
    const contextCache = decodingContext.contextCache;
    let stripT = huffman ? -huffmanTables.tableDeltaT.decode(huffmanInput) : -decodeInteger(contextCache, "IADT", decoder);
    let firstS = 0;
    i = 0;
  
    while (i < numberOfSymbolInstances) {
      const deltaT = huffman ? huffmanTables.tableDeltaT.decode(huffmanInput) : decodeInteger(contextCache, "IADT", decoder);
      stripT += deltaT;
      const deltaFirstS = huffman ? huffmanTables.tableFirstS.decode(huffmanInput) : decodeInteger(contextCache, "IAFS", decoder);
      firstS += deltaFirstS;
      let currentS = firstS;
  
      do {
        let currentT = 0;
  
        if (stripSize > 1) {
          currentT = huffman ? huffmanInput.readBits(logStripSize) : decodeInteger(contextCache, "IAIT", decoder);
        }
  
        const t = stripSize * stripT + currentT;
        const symbolId = huffman ? huffmanTables.symbolIDTable.decode(huffmanInput) : decodeIAID(contextCache, decoder, symbolCodeLength);
        const applyRefinement = refinement && (huffman ? huffmanInput.readBit() : decodeInteger(contextCache, "IARI", decoder));
        let symbolBitmap = inputSymbols[symbolId];
        let symbolWidth = symbolBitmap[0].length;
        let symbolHeight = symbolBitmap.length;
  
        if (applyRefinement) {
          const rdw = decodeInteger(contextCache, "IARDW", decoder);
          const rdh = decodeInteger(contextCache, "IARDH", decoder);
          const rdx = decodeInteger(contextCache, "IARDX", decoder);
          const rdy = decodeInteger(contextCache, "IARDY", decoder);
          symbolWidth += rdw;
          symbolHeight += rdh;
          symbolBitmap = decodeRefinement(symbolWidth, symbolHeight, refinementTemplateIndex, symbolBitmap, (rdw >> 1) + rdx, (rdh >> 1) + rdy, false, refinementAt, decodingContext);
        }
  
        const offsetT = t - (referenceCorner & 1 ? 0 : symbolHeight - 1);
        const offsetS = currentS - (referenceCorner & 2 ? symbolWidth - 1 : 0);
        let s2, t2, symbolRow;
  
        if (transposed) {
          for (s2 = 0; s2 < symbolHeight; s2++) {
            row = bitmap[offsetS + s2];
  
            if (!row) {
              continue;
            }
  
            symbolRow = symbolBitmap[s2];
            const maxWidth = Math.min(width - offsetT, symbolWidth);
  
            switch (combinationOperator) {
              case 0:
                for (t2 = 0; t2 < maxWidth; t2++) {
                  row[offsetT + t2] |= symbolRow[t2];
                }
  
                break;
  
              case 2:
                for (t2 = 0; t2 < maxWidth; t2++) {
                  row[offsetT + t2] ^= symbolRow[t2];
                }
  
                break;
  
              default:
                throw new Jbig2Error(`operator ${combinationOperator} is not supported`);
            }
          }
  
          currentS += symbolHeight - 1;
        } else {
          for (t2 = 0; t2 < symbolHeight; t2++) {
            row = bitmap[offsetT + t2];
  
            if (!row) {
              continue;
            }
  
            symbolRow = symbolBitmap[t2];
  
            switch (combinationOperator) {
              case 0:
                for (s2 = 0; s2 < symbolWidth; s2++) {
                  row[offsetS + s2] |= symbolRow[s2];
                }
  
                break;
  
              case 2:
                for (s2 = 0; s2 < symbolWidth; s2++) {
                  row[offsetS + s2] ^= symbolRow[s2];
                }
  
                break;
  
              default:
                throw new Jbig2Error(`operator ${combinationOperator} is not supported`);
            }
          }
  
          currentS += symbolWidth - 1;
        }
  
        i++;
        const deltaS = huffman ? huffmanTables.tableDeltaS.decode(huffmanInput) : decodeInteger(contextCache, "IADS", decoder);
  
        if (deltaS === null) {
          break;
        }
  
        currentS += deltaS + dsOffset;
      } while (true);
    }
  
    return bitmap;
  }
  
  function decodePatternDictionary(mmr, patternWidth, patternHeight, maxPatternIndex, template, decodingContext) {
    const at = [];
  
    if (!mmr) {
      at.push({
        x: -patternWidth,
        y: 0
      });
  
      if (template === 0) {
        at.push({
          x: -3,
          y: -1
        }, {
          x: 2,
          y: -2
        }, {
          x: -2,
          y: -2
        });
      }
    }
  
    const collectiveWidth = (maxPatternIndex + 1) * patternWidth;
    const collectiveBitmap = decodeBitmap(mmr, collectiveWidth, patternHeight, template, false, null, at, decodingContext);
    const patterns = [];
  
    for (let i = 0; i <= maxPatternIndex; i++) {
      const patternBitmap = [];
      const xMin = patternWidth * i;
      const xMax = xMin + patternWidth;
  
      for (let y = 0; y < patternHeight; y++) {
        patternBitmap.push(collectiveBitmap[y].subarray(xMin, xMax));
      }
  
      patterns.push(patternBitmap);
    }
  
    return patterns;
  }
  
  function decodeHalftoneRegion(mmr, patterns, template, regionWidth, regionHeight, defaultPixelValue, enableSkip, combinationOperator, gridWidth, gridHeight, gridOffsetX, gridOffsetY, gridVectorX, gridVectorY, decodingContext) {
    const skip = null;
  
    if (enableSkip) {
      throw new Jbig2Error("skip is not supported");
    }
  
    if (combinationOperator !== 0) {
      throw new Jbig2Error(`operator "${combinationOperator}" is not supported in halftone region`);
    }
  
    const regionBitmap = [];
    let i, j, row;
  
    for (i = 0; i < regionHeight; i++) {
      row = new Uint8Array(regionWidth);
  
      if (defaultPixelValue) {
        for (j = 0; j < regionWidth; j++) {
          row[j] = defaultPixelValue;
        }
      }
  
      regionBitmap.push(row);
    }
  
    const numberOfPatterns = patterns.length;
    const pattern0 = patterns[0];
    const patternWidth = pattern0[0].length,
          patternHeight = pattern0.length;
    const bitsPerValue = (0, _core_utils.log2)(numberOfPatterns);
    const at = [];
  
    if (!mmr) {
      at.push({
        x: template <= 1 ? 3 : 2,
        y: -1
      });
  
      if (template === 0) {
        at.push({
          x: -3,
          y: -1
        }, {
          x: 2,
          y: -2
        }, {
          x: -2,
          y: -2
        });
      }
    }
  
    const grayScaleBitPlanes = [];
    let mmrInput, bitmap;
  
    if (mmr) {
      mmrInput = new Reader(decodingContext.data, decodingContext.start, decodingContext.end);
    }
  
    for (i = bitsPerValue - 1; i >= 0; i--) {
      if (mmr) {
        bitmap = decodeMMRBitmap(mmrInput, gridWidth, gridHeight, true);
      } else {
        bitmap = decodeBitmap(false, gridWidth, gridHeight, template, false, skip, at, decodingContext);
      }
  
      grayScaleBitPlanes[i] = bitmap;
    }
  
    let mg, ng, bit, patternIndex, patternBitmap, x, y, patternRow, regionRow;
  
    for (mg = 0; mg < gridHeight; mg++) {
      for (ng = 0; ng < gridWidth; ng++) {
        bit = 0;
        patternIndex = 0;
  
        for (j = bitsPerValue - 1; j >= 0; j--) {
          bit ^= grayScaleBitPlanes[j][mg][ng];
          patternIndex |= bit << j;
        }
  
        patternBitmap = patterns[patternIndex];
        x = gridOffsetX + mg * gridVectorY + ng * gridVectorX >> 8;
        y = gridOffsetY + mg * gridVectorX - ng * gridVectorY >> 8;
  
        if (x >= 0 && x + patternWidth <= regionWidth && y >= 0 && y + patternHeight <= regionHeight) {
          for (i = 0; i < patternHeight; i++) {
            regionRow = regionBitmap[y + i];
            patternRow = patternBitmap[i];
  
            for (j = 0; j < patternWidth; j++) {
              regionRow[x + j] |= patternRow[j];
            }
          }
        } else {
          let regionX, regionY;
  
          for (i = 0; i < patternHeight; i++) {
            regionY = y + i;
  
            if (regionY < 0 || regionY >= regionHeight) {
              continue;
            }
  
            regionRow = regionBitmap[regionY];
            patternRow = patternBitmap[i];
  
            for (j = 0; j < patternWidth; j++) {
              regionX = x + j;
  
              if (regionX >= 0 && regionX < regionWidth) {
                regionRow[regionX] |= patternRow[j];
              }
            }
          }
        }
      }
    }
  
    return regionBitmap;
  }
  
  function readSegmentHeader(data, start) {
    const segmentHeader = {};
    segmentHeader.number = (0, _core_utils.readUint32)(data, start);
    const flags = data[start + 4];
    const segmentType = flags & 0x3f;
  
    if (!SegmentTypes[segmentType]) {
      throw new Jbig2Error("invalid segment type: " + segmentType);
    }
  
    segmentHeader.type = segmentType;
    segmentHeader.typeName = SegmentTypes[segmentType];
    segmentHeader.deferredNonRetain = !!(flags & 0x80);
    const pageAssociationFieldSize = !!(flags & 0x40);
    const referredFlags = data[start + 5];
    let referredToCount = referredFlags >> 5 & 7;
    const retainBits = [referredFlags & 31];
    let position = start + 6;
  
    if (referredFlags === 7) {
      referredToCount = (0, _core_utils.readUint32)(data, position - 1) & 0x1fffffff;
      position += 3;
      let bytes = referredToCount + 7 >> 3;
      retainBits[0] = data[position++];
  
      while (--bytes > 0) {
        retainBits.push(data[position++]);
      }
    } else if (referredFlags === 5 || referredFlags === 6) {
      throw new Jbig2Error("invalid referred-to flags");
    }
  
    segmentHeader.retainBits = retainBits;
    let referredToSegmentNumberSize = 4;
  
    if (segmentHeader.number <= 256) {
      referredToSegmentNumberSize = 1;
    } else if (segmentHeader.number <= 65536) {
      referredToSegmentNumberSize = 2;
    }
  
    const referredTo = [];
    let i, ii;
  
    for (i = 0; i < referredToCount; i++) {
      let number;
  
      if (referredToSegmentNumberSize === 1) {
        number = data[position];
      } else if (referredToSegmentNumberSize === 2) {
        number = (0, _core_utils.readUint16)(data, position);
      } else {
        number = (0, _core_utils.readUint32)(data, position);
      }
  
      referredTo.push(number);
      position += referredToSegmentNumberSize;
    }
  
    segmentHeader.referredTo = referredTo;
  
    if (!pageAssociationFieldSize) {
      segmentHeader.pageAssociation = data[position++];
    } else {
      segmentHeader.pageAssociation = (0, _core_utils.readUint32)(data, position);
      position += 4;
    }
  
    segmentHeader.length = (0, _core_utils.readUint32)(data, position);
    position += 4;
  
    if (segmentHeader.length === 0xffffffff) {
      if (segmentType === 38) {
        const genericRegionInfo = readRegionSegmentInformation(data, position);
        const genericRegionSegmentFlags = data[position + RegionSegmentInformationFieldLength];
        const genericRegionMmr = !!(genericRegionSegmentFlags & 1);
        const searchPatternLength = 6;
        const searchPattern = new Uint8Array(searchPatternLength);
  
        if (!genericRegionMmr) {
          searchPattern[0] = 0xff;
          searchPattern[1] = 0xac;
        }
  
        searchPattern[2] = genericRegionInfo.height >>> 24 & 0xff;
        searchPattern[3] = genericRegionInfo.height >> 16 & 0xff;
        searchPattern[4] = genericRegionInfo.height >> 8 & 0xff;
        searchPattern[5] = genericRegionInfo.height & 0xff;
  
        for (i = position, ii = data.length; i < ii; i++) {
          let j = 0;
  
          while (j < searchPatternLength && searchPattern[j] === data[i + j]) {
            j++;
          }
  
          if (j === searchPatternLength) {
            segmentHeader.length = i + searchPatternLength;
            break;
          }
        }
  
        if (segmentHeader.length === 0xffffffff) {
          throw new Jbig2Error("segment end was not found");
        }
      } else {
        throw new Jbig2Error("invalid unknown segment length");
      }
    }
  
    segmentHeader.headerEnd = position;
    return segmentHeader;
  }
  
  function readSegments(header, data, start, end) {
    const segments = [];
    let position = start;
  
    while (position < end) {
      const segmentHeader = readSegmentHeader(data, position);
      position = segmentHeader.headerEnd;
      const segment = {
        header: segmentHeader,
        data
      };
  
      if (!header.randomAccess) {
        segment.start = position;
        position += segmentHeader.length;
        segment.end = position;
      }
  
      segments.push(segment);
  
      if (segmentHeader.type === 51) {
        break;
      }
    }
  
    if (header.randomAccess) {
      for (let i = 0, ii = segments.length; i < ii; i++) {
        segments[i].start = position;
        position += segments[i].header.length;
        segments[i].end = position;
      }
    }
  
    return segments;
  }
  
  function readRegionSegmentInformation(data, start) {
    return {
      width: (0, _core_utils.readUint32)(data, start),
      height: (0, _core_utils.readUint32)(data, start + 4),
      x: (0, _core_utils.readUint32)(data, start + 8),
      y: (0, _core_utils.readUint32)(data, start + 12),
      combinationOperator: data[start + 16] & 7
    };
  }
  
  const RegionSegmentInformationFieldLength = 17;
  
  function processSegment(segment, visitor) {
    const header = segment.header;
    const data = segment.data,
          end = segment.end;
    let position = segment.start;
    let args, at, i, atLength;
  
    switch (header.type) {
      case 0:
        const dictionary = {};
        const dictionaryFlags = (0, _core_utils.readUint16)(data, position);
        dictionary.huffman = !!(dictionaryFlags & 1);
        dictionary.refinement = !!(dictionaryFlags & 2);
        dictionary.huffmanDHSelector = dictionaryFlags >> 2 & 3;
        dictionary.huffmanDWSelector = dictionaryFlags >> 4 & 3;
        dictionary.bitmapSizeSelector = dictionaryFlags >> 6 & 1;
        dictionary.aggregationInstancesSelector = dictionaryFlags >> 7 & 1;
        dictionary.bitmapCodingContextUsed = !!(dictionaryFlags & 256);
        dictionary.bitmapCodingContextRetained = !!(dictionaryFlags & 512);
        dictionary.template = dictionaryFlags >> 10 & 3;
        dictionary.refinementTemplate = dictionaryFlags >> 12 & 1;
        position += 2;
  
        if (!dictionary.huffman) {
          atLength = dictionary.template === 0 ? 4 : 1;
          at = [];
  
          for (i = 0; i < atLength; i++) {
            at.push({
              x: (0, _core_utils.readInt8)(data, position),
              y: (0, _core_utils.readInt8)(data, position + 1)
            });
            position += 2;
          }
  
          dictionary.at = at;
        }
  
        if (dictionary.refinement && !dictionary.refinementTemplate) {
          at = [];
  
          for (i = 0; i < 2; i++) {
            at.push({
              x: (0, _core_utils.readInt8)(data, position),
              y: (0, _core_utils.readInt8)(data, position + 1)
            });
            position += 2;
          }
  
          dictionary.refinementAt = at;
        }
  
        dictionary.numberOfExportedSymbols = (0, _core_utils.readUint32)(data, position);
        position += 4;
        dictionary.numberOfNewSymbols = (0, _core_utils.readUint32)(data, position);
        position += 4;
        args = [dictionary, header.number, header.referredTo, data, position, end];
        break;
  
      case 6:
      case 7:
        const textRegion = {};
        textRegion.info = readRegionSegmentInformation(data, position);
        position += RegionSegmentInformationFieldLength;
        const textRegionSegmentFlags = (0, _core_utils.readUint16)(data, position);
        position += 2;
        textRegion.huffman = !!(textRegionSegmentFlags & 1);
        textRegion.refinement = !!(textRegionSegmentFlags & 2);
        textRegion.logStripSize = textRegionSegmentFlags >> 2 & 3;
        textRegion.stripSize = 1 << textRegion.logStripSize;
        textRegion.referenceCorner = textRegionSegmentFlags >> 4 & 3;
        textRegion.transposed = !!(textRegionSegmentFlags & 64);
        textRegion.combinationOperator = textRegionSegmentFlags >> 7 & 3;
        textRegion.defaultPixelValue = textRegionSegmentFlags >> 9 & 1;
        textRegion.dsOffset = textRegionSegmentFlags << 17 >> 27;
        textRegion.refinementTemplate = textRegionSegmentFlags >> 15 & 1;
  
        if (textRegion.huffman) {
          const textRegionHuffmanFlags = (0, _core_utils.readUint16)(data, position);
          position += 2;
          textRegion.huffmanFS = textRegionHuffmanFlags & 3;
          textRegion.huffmanDS = textRegionHuffmanFlags >> 2 & 3;
          textRegion.huffmanDT = textRegionHuffmanFlags >> 4 & 3;
          textRegion.huffmanRefinementDW = textRegionHuffmanFlags >> 6 & 3;
          textRegion.huffmanRefinementDH = textRegionHuffmanFlags >> 8 & 3;
          textRegion.huffmanRefinementDX = textRegionHuffmanFlags >> 10 & 3;
          textRegion.huffmanRefinementDY = textRegionHuffmanFlags >> 12 & 3;
          textRegion.huffmanRefinementSizeSelector = !!(textRegionHuffmanFlags & 0x4000);
        }
  
        if (textRegion.refinement && !textRegion.refinementTemplate) {
          at = [];
  
          for (i = 0; i < 2; i++) {
            at.push({
              x: (0, _core_utils.readInt8)(data, position),
              y: (0, _core_utils.readInt8)(data, position + 1)
            });
            position += 2;
          }
  
          textRegion.refinementAt = at;
        }
  
        textRegion.numberOfSymbolInstances = (0, _core_utils.readUint32)(data, position);
        position += 4;
        args = [textRegion, header.referredTo, data, position, end];
        break;
  
      case 16:
        const patternDictionary = {};
        const patternDictionaryFlags = data[position++];
        patternDictionary.mmr = !!(patternDictionaryFlags & 1);
        patternDictionary.template = patternDictionaryFlags >> 1 & 3;
        patternDictionary.patternWidth = data[position++];
        patternDictionary.patternHeight = data[position++];
        patternDictionary.maxPatternIndex = (0, _core_utils.readUint32)(data, position);
        position += 4;
        args = [patternDictionary, header.number, data, position, end];
        break;
  
      case 22:
      case 23:
        const halftoneRegion = {};
        halftoneRegion.info = readRegionSegmentInformation(data, position);
        position += RegionSegmentInformationFieldLength;
        const halftoneRegionFlags = data[position++];
        halftoneRegion.mmr = !!(halftoneRegionFlags & 1);
        halftoneRegion.template = halftoneRegionFlags >> 1 & 3;
        halftoneRegion.enableSkip = !!(halftoneRegionFlags & 8);
        halftoneRegion.combinationOperator = halftoneRegionFlags >> 4 & 7;
        halftoneRegion.defaultPixelValue = halftoneRegionFlags >> 7 & 1;
        halftoneRegion.gridWidth = (0, _core_utils.readUint32)(data, position);
        position += 4;
        halftoneRegion.gridHeight = (0, _core_utils.readUint32)(data, position);
        position += 4;
        halftoneRegion.gridOffsetX = (0, _core_utils.readUint32)(data, position) & 0xffffffff;
        position += 4;
        halftoneRegion.gridOffsetY = (0, _core_utils.readUint32)(data, position) & 0xffffffff;
        position += 4;
        halftoneRegion.gridVectorX = (0, _core_utils.readUint16)(data, position);
        position += 2;
        halftoneRegion.gridVectorY = (0, _core_utils.readUint16)(data, position);
        position += 2;
        args = [halftoneRegion, header.referredTo, data, position, end];
        break;
  
      case 38:
      case 39:
        const genericRegion = {};
        genericRegion.info = readRegionSegmentInformation(data, position);
        position += RegionSegmentInformationFieldLength;
        const genericRegionSegmentFlags = data[position++];
        genericRegion.mmr = !!(genericRegionSegmentFlags & 1);
        genericRegion.template = genericRegionSegmentFlags >> 1 & 3;
        genericRegion.prediction = !!(genericRegionSegmentFlags & 8);
  
        if (!genericRegion.mmr) {
          atLength = genericRegion.template === 0 ? 4 : 1;
          at = [];
  
          for (i = 0; i < atLength; i++) {
            at.push({
              x: (0, _core_utils.readInt8)(data, position),
              y: (0, _core_utils.readInt8)(data, position + 1)
            });
            position += 2;
          }
  
          genericRegion.at = at;
        }
  
        args = [genericRegion, data, position, end];
        break;
  
      case 48:
        const pageInfo = {
          width: (0, _core_utils.readUint32)(data, position),
          height: (0, _core_utils.readUint32)(data, position + 4),
          resolutionX: (0, _core_utils.readUint32)(data, position + 8),
          resolutionY: (0, _core_utils.readUint32)(data, position + 12)
        };
  
        if (pageInfo.height === 0xffffffff) {
          delete pageInfo.height;
        }
  
        const pageSegmentFlags = data[position + 16];
        (0, _core_utils.readUint16)(data, position + 17);
        pageInfo.lossless = !!(pageSegmentFlags & 1);
        pageInfo.refinement = !!(pageSegmentFlags & 2);
        pageInfo.defaultPixelValue = pageSegmentFlags >> 2 & 1;
        pageInfo.combinationOperator = pageSegmentFlags >> 3 & 3;
        pageInfo.requiresBuffer = !!(pageSegmentFlags & 32);
        pageInfo.combinationOperatorOverride = !!(pageSegmentFlags & 64);
        args = [pageInfo];
        break;
  
      case 49:
        break;
  
      case 50:
        break;
  
      case 51:
        break;
  
      case 53:
        args = [header.number, data, position, end];
        break;
  
      case 62:
        break;
  
      default:
        throw new Jbig2Error(`segment type ${header.typeName}(${header.type})` + " is not implemented");
    }
  
    const callbackName = "on" + header.typeName;
  
    if (callbackName in visitor) {
      visitor[callbackName].apply(visitor, args);
    }
  }
  
  function processSegments(segments, visitor) {
    for (let i = 0, ii = segments.length; i < ii; i++) {
      processSegment(segments[i], visitor);
    }
  }
  
  function parseJbig2Chunks(chunks) {
    const visitor = new SimpleSegmentVisitor();
  
    for (let i = 0, ii = chunks.length; i < ii; i++) {
      const chunk = chunks[i];
      const segments = readSegments({}, chunk.data, chunk.start, chunk.end);
      processSegments(segments, visitor);
    }
  
    return visitor.buffer;
  }
  
  function parseJbig2(data) {
    const end = data.length;
    let position = 0;
  
    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) {
      throw new Jbig2Error("parseJbig2 - invalid header.");
    }
  
    const header = Object.create(null);
    position += 8;
    const flags = data[position++];
    header.randomAccess = !(flags & 1);
  
    if (!(flags & 2)) {
      header.numberOfPages = (0, _core_utils.readUint32)(data, position);
      position += 4;
    }
  
    const segments = readSegments(header, data, position, end);
    const visitor = new SimpleSegmentVisitor();
    processSegments(segments, visitor);
    const {
      width,
      height
    } = visitor.currentPageInfo;
    const bitPacked = visitor.buffer;
    const imgData = new Uint8ClampedArray(width * height);
    let q = 0,
        k = 0;
  
    for (let i = 0; i < height; i++) {
      let mask = 0,
          buffer;
  
      for (let j = 0; j < width; j++) {
        if (!mask) {
          mask = 128;
          buffer = bitPacked[k++];
        }
  
        imgData[q++] = buffer & mask ? 0 : 255;
        mask >>= 1;
      }
    }
  
    return {
      imgData,
      width,
      height
    };
  }
  
  class SimpleSegmentVisitor {
    onPageInformation(info) {
      this.currentPageInfo = info;
      const rowSize = info.width + 7 >> 3;
      const buffer = new Uint8ClampedArray(rowSize * info.height);
  
      if (info.defaultPixelValue) {
        for (let i = 0, ii = buffer.length; i < ii; i++) {
          buffer[i] = 0xff;
        }
      }
  
      this.buffer = buffer;
    }
  
    drawBitmap(regionInfo, bitmap) {
      const pageInfo = this.currentPageInfo;
      const width = regionInfo.width,
            height = regionInfo.height;
      const rowSize = pageInfo.width + 7 >> 3;
      const combinationOperator = pageInfo.combinationOperatorOverride ? regionInfo.combinationOperator : pageInfo.combinationOperator;
      const buffer = this.buffer;
      const mask0 = 128 >> (regionInfo.x & 7);
      let offset0 = regionInfo.y * rowSize + (regionInfo.x >> 3);
      let i, j, mask, offset;
  
      switch (combinationOperator) {
        case 0:
          for (i = 0; i < height; i++) {
            mask = mask0;
            offset = offset0;
  
            for (j = 0; j < width; j++) {
              if (bitmap[i][j]) {
                buffer[offset] |= mask;
              }
  
              mask >>= 1;
  
              if (!mask) {
                mask = 128;
                offset++;
              }
            }
  
            offset0 += rowSize;
          }
  
          break;
  
        case 2:
          for (i = 0; i < height; i++) {
            mask = mask0;
            offset = offset0;
  
            for (j = 0; j < width; j++) {
              if (bitmap[i][j]) {
                buffer[offset] ^= mask;
              }
  
              mask >>= 1;
  
              if (!mask) {
                mask = 128;
                offset++;
              }
            }
  
            offset0 += rowSize;
          }
  
          break;
  
        default:
          throw new Jbig2Error(`operator ${combinationOperator} is not supported`);
      }
    }
  
    onImmediateGenericRegion(region, data, start, end) {
      const regionInfo = region.info;
      const decodingContext = new DecodingContext(data, start, end);
      const bitmap = decodeBitmap(region.mmr, regionInfo.width, regionInfo.height, region.template, region.prediction, null, region.at, decodingContext);
      this.drawBitmap(regionInfo, bitmap);
    }
  
    onImmediateLosslessGenericRegion() {
      this.onImmediateGenericRegion.apply(this, arguments);
    }
  
    onSymbolDictionary(dictionary, currentSegment, referredSegments, data, start, end) {
      let huffmanTables, huffmanInput;
  
      if (dictionary.huffman) {
        huffmanTables = getSymbolDictionaryHuffmanTables(dictionary, referredSegments, this.customTables);
        huffmanInput = new Reader(data, start, end);
      }
  
      let symbols = this.symbols;
  
      if (!symbols) {
        this.symbols = symbols = {};
      }
  
      let inputSymbols = [];
  
      for (let i = 0, ii = referredSegments.length; i < ii; i++) {
        const referredSymbols = symbols[referredSegments[i]];
  
        if (referredSymbols) {
          inputSymbols = inputSymbols.concat(referredSymbols);
        }
      }
  
      const decodingContext = new DecodingContext(data, start, end);
      symbols[currentSegment] = decodeSymbolDictionary(dictionary.huffman, dictionary.refinement, inputSymbols, dictionary.numberOfNewSymbols, dictionary.numberOfExportedSymbols, huffmanTables, dictionary.template, dictionary.at, dictionary.refinementTemplate, dictionary.refinementAt, decodingContext, huffmanInput);
    }
  
    onImmediateTextRegion(region, referredSegments, data, start, end) {
      const regionInfo = region.info;
      let huffmanTables, huffmanInput;
      const symbols = this.symbols;
      let inputSymbols = [];
  
      for (let i = 0, ii = referredSegments.length; i < ii; i++) {
        const referredSymbols = symbols[referredSegments[i]];
  
        if (referredSymbols) {
          inputSymbols = inputSymbols.concat(referredSymbols);
        }
      }
  
      const symbolCodeLength = (0, _core_utils.log2)(inputSymbols.length);
  
      if (region.huffman) {
        huffmanInput = new Reader(data, start, end);
        huffmanTables = getTextRegionHuffmanTables(region, referredSegments, this.customTables, inputSymbols.length, huffmanInput);
      }
  
      const decodingContext = new DecodingContext(data, start, end);
      const 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);
      this.drawBitmap(regionInfo, bitmap);
    }
  
    onImmediateLosslessTextRegion() {
      this.onImmediateTextRegion.apply(this, arguments);
    }
  
    onPatternDictionary(dictionary, currentSegment, data, start, end) {
      let patterns = this.patterns;
  
      if (!patterns) {
        this.patterns = patterns = {};
      }
  
      const decodingContext = new DecodingContext(data, start, end);
      patterns[currentSegment] = decodePatternDictionary(dictionary.mmr, dictionary.patternWidth, dictionary.patternHeight, dictionary.maxPatternIndex, dictionary.template, decodingContext);
    }
  
    onImmediateHalftoneRegion(region, referredSegments, data, start, end) {
      const patterns = this.patterns[referredSegments[0]];
      const regionInfo = region.info;
      const decodingContext = new DecodingContext(data, start, end);
      const 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);
      this.drawBitmap(regionInfo, bitmap);
    }
  
    onImmediateLosslessHalftoneRegion() {
      this.onImmediateHalftoneRegion.apply(this, arguments);
    }
  
    onTables(currentSegment, data, start, end) {
      let customTables = this.customTables;
  
      if (!customTables) {
        this.customTables = customTables = {};
      }
  
      customTables[currentSegment] = decodeTablesSegment(data, start, end);
    }
  
  }
  
  class HuffmanLine {
    constructor(lineData) {
      if (lineData.length === 2) {
        this.isOOB = true;
        this.rangeLow = 0;
        this.prefixLength = lineData[0];
        this.rangeLength = 0;
        this.prefixCode = lineData[1];
        this.isLowerRange = false;
      } else {
        this.isOOB = false;
        this.rangeLow = lineData[0];
        this.prefixLength = lineData[1];
        this.rangeLength = lineData[2];
        this.prefixCode = lineData[3];
        this.isLowerRange = lineData[4] === "lower";
      }
    }
  
  }
  
  class HuffmanTreeNode {
    constructor(line) {
      this.children = [];
  
      if (line) {
        this.isLeaf = true;
        this.rangeLength = line.rangeLength;
        this.rangeLow = line.rangeLow;
        this.isLowerRange = line.isLowerRange;
        this.isOOB = line.isOOB;
      } else {
        this.isLeaf = false;
      }
    }
  
    buildTree(line, shift) {
      const bit = line.prefixCode >> shift & 1;
  
      if (shift <= 0) {
        this.children[bit] = new HuffmanTreeNode(line);
      } else {
        let node = this.children[bit];
  
        if (!node) {
          this.children[bit] = node = new HuffmanTreeNode(null);
        }
  
        node.buildTree(line, shift - 1);
      }
    }
  
    decodeNode(reader) {
      if (this.isLeaf) {
        if (this.isOOB) {
          return null;
        }
  
        const htOffset = reader.readBits(this.rangeLength);
        return this.rangeLow + (this.isLowerRange ? -htOffset : htOffset);
      }
  
      const node = this.children[reader.readBit()];
  
      if (!node) {
        throw new Jbig2Error("invalid Huffman data");
      }
  
      return node.decodeNode(reader);
    }
  
  }
  
  class HuffmanTable {
    constructor(lines, prefixCodesDone) {
      if (!prefixCodesDone) {
        this.assignPrefixCodes(lines);
      }
  
      this.rootNode = new HuffmanTreeNode(null);
  
      for (let i = 0, ii = lines.length; i < ii; i++) {
        const line = lines[i];
  
        if (line.prefixLength > 0) {
          this.rootNode.buildTree(line, line.prefixLength - 1);
        }
      }
    }
  
    decode(reader) {
      return this.rootNode.decodeNode(reader);
    }
  
    assignPrefixCodes(lines) {
      const linesLength = lines.length;
      let prefixLengthMax = 0;
  
      for (let i = 0; i < linesLength; i++) {
        prefixLengthMax = Math.max(prefixLengthMax, lines[i].prefixLength);
      }
  
      const histogram = new Uint32Array(prefixLengthMax + 1);
  
      for (let i = 0; i < linesLength; i++) {
        histogram[lines[i].prefixLength]++;
      }
  
      let currentLength = 1,
          firstCode = 0,
          currentCode,
          currentTemp,
          line;
      histogram[0] = 0;
  
      while (currentLength <= prefixLengthMax) {
        firstCode = firstCode + histogram[currentLength - 1] << 1;
        currentCode = firstCode;
        currentTemp = 0;
  
        while (currentTemp < linesLength) {
          line = lines[currentTemp];
  
          if (line.prefixLength === currentLength) {
            line.prefixCode = currentCode;
            currentCode++;
          }
  
          currentTemp++;
        }
  
        currentLength++;
      }
    }
  
  }
  
  function decodeTablesSegment(data, start, end) {
    const flags = data[start];
    const lowestValue = (0, _core_utils.readUint32)(data, start + 1) & 0xffffffff;
    const highestValue = (0, _core_utils.readUint32)(data, start + 5) & 0xffffffff;
    const reader = new Reader(data, start + 9, end);
    const prefixSizeBits = (flags >> 1 & 7) + 1;
    const rangeSizeBits = (flags >> 4 & 7) + 1;
    const lines = [];
    let prefixLength,
        rangeLength,
        currentRangeLow = lowestValue;
  
    do {
      prefixLength = reader.readBits(prefixSizeBits);
      rangeLength = reader.readBits(rangeSizeBits);
      lines.push(new HuffmanLine([currentRangeLow, prefixLength, rangeLength, 0]));
      currentRangeLow += 1 << rangeLength;
    } while (currentRangeLow < highestValue);
  
    prefixLength = reader.readBits(prefixSizeBits);
    lines.push(new HuffmanLine([lowestValue - 1, prefixLength, 32, 0, "lower"]));
    prefixLength = reader.readBits(prefixSizeBits);
    lines.push(new HuffmanLine([highestValue, prefixLength, 32, 0]));
  
    if (flags & 1) {
      prefixLength = reader.readBits(prefixSizeBits);
      lines.push(new HuffmanLine([prefixLength, 0]));
    }
  
    return new HuffmanTable(lines, false);
  }
  
  const standardTablesCache = {};
  
  function getStandardTable(number) {
    let table = standardTablesCache[number];
  
    if (table) {
      return table;
    }
  
    let lines;
  
    switch (number) {
      case 1:
        lines = [[0, 1, 4, 0x0], [16, 2, 8, 0x2], [272, 3, 16, 0x6], [65808, 3, 32, 0x7]];
        break;
  
      case 2:
        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]];
        break;
  
      case 3:
        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]];
        break;
  
      case 4:
        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]];
        break;
  
      case 5:
        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]];
        break;
  
      case 6:
        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]];
        break;
  
      case 7:
        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]];
        break;
  
      case 8:
        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]];
        break;
  
      case 9:
        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]];
        break;
  
      case 10:
        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]];
        break;
  
      case 11:
        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]];
        break;
  
      case 12:
        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]];
        break;
  
      case 13:
        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]];
        break;
  
      case 14:
        lines = [[-2, 3, 0, 0x4], [-1, 3, 0, 0x5], [0, 1, 0, 0x0], [1, 3, 0, 0x6], [2, 3, 0, 0x7]];
        break;
  
      case 15:
        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]];
        break;
  
      default:
        throw new Jbig2Error(`standard table B.${number} does not exist`);
    }
  
    for (let i = 0, ii = lines.length; i < ii; i++) {
      lines[i] = new HuffmanLine(lines[i]);
    }
  
    table = new HuffmanTable(lines, true);
    standardTablesCache[number] = table;
    return table;
  }
  
  class Reader {
    constructor(data, start, end) {
      this.data = data;
      this.start = start;
      this.end = end;
      this.position = start;
      this.shift = -1;
      this.currentByte = 0;
    }
  
    readBit() {
      if (this.shift < 0) {
        if (this.position >= this.end) {
          throw new Jbig2Error("end of data while reading bit");
        }
  
        this.currentByte = this.data[this.position++];
        this.shift = 7;
      }
  
      const bit = this.currentByte >> this.shift & 1;
      this.shift--;
      return bit;
    }
  
    readBits(numBits) {
      let result = 0,
          i;
  
      for (i = numBits - 1; i >= 0; i--) {
        result |= this.readBit() << i;
      }
  
      return result;
    }
  
    byteAlign() {
      this.shift = -1;
    }
  
    next() {
      if (this.position >= this.end) {
        return -1;
      }
  
      return this.data[this.position++];
    }
  
  }
  
  function getCustomHuffmanTable(index, referredTo, customTables) {
    let currentIndex = 0;
  
    for (let i = 0, ii = referredTo.length; i < ii; i++) {
      const table = customTables[referredTo[i]];
  
      if (table) {
        if (index === currentIndex) {
          return table;
        }
  
        currentIndex++;
      }
    }
  
    throw new Jbig2Error("can't find custom Huffman table");
  }
  
  function getTextRegionHuffmanTables(textRegion, referredTo, customTables, numberOfSymbols, reader) {
    const codes = [];
  
    for (let i = 0; i <= 34; i++) {
      const codeLength = reader.readBits(4);
      codes.push(new HuffmanLine([i, codeLength, 0, 0]));
    }
  
    const runCodesTable = new HuffmanTable(codes, false);
    codes.length = 0;
  
    for (let i = 0; i < numberOfSymbols;) {
      const codeLength = runCodesTable.decode(reader);
  
      if (codeLength >= 32) {
        let repeatedLength, numberOfRepeats, j;
  
        switch (codeLength) {
          case 32:
            if (i === 0) {
              throw new Jbig2Error("no previous value in symbol ID table");
            }
  
            numberOfRepeats = reader.readBits(2) + 3;
            repeatedLength = codes[i - 1].prefixLength;
            break;
  
          case 33:
            numberOfRepeats = reader.readBits(3) + 3;
            repeatedLength = 0;
            break;
  
          case 34:
            numberOfRepeats = reader.readBits(7) + 11;
            repeatedLength = 0;
            break;
  
          default:
            throw new Jbig2Error("invalid code length in symbol ID table");
        }
  
        for (j = 0; j < numberOfRepeats; j++) {
          codes.push(new HuffmanLine([i, repeatedLength, 0, 0]));
          i++;
        }
      } else {
        codes.push(new HuffmanLine([i, codeLength, 0, 0]));
        i++;
      }
    }
  
    reader.byteAlign();
    const symbolIDTable = new HuffmanTable(codes, false);
    let customIndex = 0,
        tableFirstS,
        tableDeltaS,
        tableDeltaT;
  
    switch (textRegion.huffmanFS) {
      case 0:
      case 1:
        tableFirstS = getStandardTable(textRegion.huffmanFS + 6);
        break;
  
      case 3:
        tableFirstS = getCustomHuffmanTable(customIndex, referredTo, customTables);
        customIndex++;
        break;
  
      default:
        throw new Jbig2Error("invalid Huffman FS selector");
    }
  
    switch (textRegion.huffmanDS) {
      case 0:
      case 1:
      case 2:
        tableDeltaS = getStandardTable(textRegion.huffmanDS + 8);
        break;
  
      case 3:
        tableDeltaS = getCustomHuffmanTable(customIndex, referredTo, customTables);
        customIndex++;
        break;
  
      default:
        throw new Jbig2Error("invalid Huffman DS selector");
    }
  
    switch (textRegion.huffmanDT) {
      case 0:
      case 1:
      case 2:
        tableDeltaT = getStandardTable(textRegion.huffmanDT + 11);
        break;
  
      case 3:
        tableDeltaT = getCustomHuffmanTable(customIndex, referredTo, customTables);
        customIndex++;
        break;
  
      default:
        throw new Jbig2Error("invalid Huffman DT selector");
    }
  
    if (textRegion.refinement) {
      throw new Jbig2Error("refinement with Huffman is not supported");
    }
  
    return {
      symbolIDTable,
      tableFirstS,
      tableDeltaS,
      tableDeltaT
    };
  }
  
  function getSymbolDictionaryHuffmanTables(dictionary, referredTo, customTables) {
    let customIndex = 0,
        tableDeltaHeight,
        tableDeltaWidth;
  
    switch (dictionary.huffmanDHSelector) {
      case 0:
      case 1:
        tableDeltaHeight = getStandardTable(dictionary.huffmanDHSelector + 4);
        break;
  
      case 3:
        tableDeltaHeight = getCustomHuffmanTable(customIndex, referredTo, customTables);
        customIndex++;
        break;
  
      default:
        throw new Jbig2Error("invalid Huffman DH selector");
    }
  
    switch (dictionary.huffmanDWSelector) {
      case 0:
      case 1:
        tableDeltaWidth = getStandardTable(dictionary.huffmanDWSelector + 2);
        break;
  
      case 3:
        tableDeltaWidth = getCustomHuffmanTable(customIndex, referredTo, customTables);
        customIndex++;
        break;
  
      default:
        throw new Jbig2Error("invalid Huffman DW selector");
    }
  
    let tableBitmapSize, tableAggregateInstances;
  
    if (dictionary.bitmapSizeSelector) {
      tableBitmapSize = getCustomHuffmanTable(customIndex, referredTo, customTables);
      customIndex++;
    } else {
      tableBitmapSize = getStandardTable(1);
    }
  
    if (dictionary.aggregationInstancesSelector) {
      tableAggregateInstances = getCustomHuffmanTable(customIndex, referredTo, customTables);
    } else {
      tableAggregateInstances = getStandardTable(1);
    }
  
    return {
      tableDeltaHeight,
      tableDeltaWidth,
      tableBitmapSize,
      tableAggregateInstances
    };
  }
  
  function readUncompressedBitmap(reader, width, height) {
    const bitmap = [];
  
    for (let y = 0; y < height; y++) {
      const row = new Uint8Array(width);
      bitmap.push(row);
  
      for (let x = 0; x < width; x++) {
        row[x] = reader.readBit();
      }
  
      reader.byteAlign();
    }
  
    return bitmap;
  }
  
  function decodeMMRBitmap(input, width, height, endOfBlock) {
    const params = {
      K: -1,
      Columns: width,
      Rows: height,
      BlackIs1: true,
      EndOfBlock: endOfBlock
    };
    const decoder = new _ccitt.CCITTFaxDecoder(input, params);
    const bitmap = [];
    let currentByte,
        eof = false;
  
    for (let y = 0; y < height; y++) {
      const row = new Uint8Array(width);
      bitmap.push(row);
      let shift = -1;
  
      for (let x = 0; x < width; x++) {
        if (shift < 0) {
          currentByte = decoder.readNextChar();
  
          if (currentByte === -1) {
            currentByte = 0;
            eof = true;
          }
  
          shift = 7;
        }
  
        row[x] = currentByte >> shift & 1;
        shift--;
      }
    }
  
    if (endOfBlock && !eof) {
      const lookForEOFLimit = 5;
  
      for (let i = 0; i < lookForEOFLimit; i++) {
        if (decoder.readNextChar() === -1) {
          break;
        }
      }
    }
  
    return bitmap;
  }
  
  class Jbig2Image {
    parseChunks(chunks) {
      return parseJbig2Chunks(chunks);
    }
  
    parse(data) {
      const {
        imgData,
        width,
        height
      } = parseJbig2(data);
      this.width = width;
      this.height = height;
      return imgData;
    }
  
  }
  
  exports.Jbig2Image = Jbig2Image;
  
  /***/ }),
  /* 5 */
  /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  exports.collectActions = collectActions;
  exports.encodeToXmlString = encodeToXmlString;
  exports.escapePDFName = escapePDFName;
  exports.getArrayLookupTableFactory = getArrayLookupTableFactory;
  exports.getInheritableProperty = getInheritableProperty;
  exports.getLookupTableFactory = getLookupTableFactory;
  exports.isWhiteSpace = isWhiteSpace;
  exports.log2 = log2;
  exports.parseXFAPath = parseXFAPath;
  exports.readInt8 = readInt8;
  exports.readUint16 = readUint16;
  exports.readUint32 = readUint32;
  exports.recoverJsURL = recoverJsURL;
  exports.toRomanNumerals = toRomanNumerals;
  exports.validateCSSFont = validateCSSFont;
  exports.XRefParseException = exports.XRefEntryException = exports.ParserEOFException = exports.MissingDataException = void 0;
  
  var _util = __w_pdfjs_require__(1);
  
  var _primitives = __w_pdfjs_require__(6);
  
  function getLookupTableFactory(initializer) {
    let lookup;
    return function () {
      if (initializer) {
        lookup = Object.create(null);
        initializer(lookup);
        initializer = null;
      }
  
      return lookup;
    };
  }
  
  function getArrayLookupTableFactory(initializer) {
    let lookup;
    return function () {
      if (initializer) {
        let arr = initializer();
        initializer = null;
        lookup = Object.create(null);
  
        for (let i = 0, ii = arr.length; i < ii; i += 2) {
          lookup[arr[i]] = arr[i + 1];
        }
  
        arr = null;
      }
  
      return lookup;
    };
  }
  
  class MissingDataException extends _util.BaseException {
    constructor(begin, end) {
      super(`Missing data [${begin}, ${end})`, "MissingDataException");
      this.begin = begin;
      this.end = end;
    }
  
  }
  
  exports.MissingDataException = MissingDataException;
  
  class ParserEOFException extends _util.BaseException {
    constructor(msg) {
      super(msg, "ParserEOFException");
    }
  
  }
  
  exports.ParserEOFException = ParserEOFException;
  
  class XRefEntryException extends _util.BaseException {
    constructor(msg) {
      super(msg, "XRefEntryException");
    }
  
  }
  
  exports.XRefEntryException = XRefEntryException;
  
  class XRefParseException extends _util.BaseException {
    constructor(msg) {
      super(msg, "XRefParseException");
    }
  
  }
  
  exports.XRefParseException = XRefParseException;
  
  function getInheritableProperty({
    dict,
    key,
    getArray = false,
    stopWhenFound = true
  }) {
    let values;
    const visited = new _primitives.RefSet();
  
    while (dict instanceof _primitives.Dict && !(dict.objId && visited.has(dict.objId))) {
      if (dict.objId) {
        visited.put(dict.objId);
      }
  
      const value = getArray ? dict.getArray(key) : dict.get(key);
  
      if (value !== undefined) {
        if (stopWhenFound) {
          return value;
        }
  
        if (!values) {
          values = [];
        }
  
        values.push(value);
      }
  
      dict = dict.get("Parent");
    }
  
    return values;
  }
  
  const 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"];
  
  function toRomanNumerals(number, lowerCase = false) {
    (0, _util.assert)(Number.isInteger(number) && number > 0, "The number should be a positive integer.");
    const romanBuf = [];
    let pos;
  
    while (number >= 1000) {
      number -= 1000;
      romanBuf.push("M");
    }
  
    pos = number / 100 | 0;
    number %= 100;
    romanBuf.push(ROMAN_NUMBER_MAP[pos]);
    pos = number / 10 | 0;
    number %= 10;
    romanBuf.push(ROMAN_NUMBER_MAP[10 + pos]);
    romanBuf.push(ROMAN_NUMBER_MAP[20 + number]);
    const romanStr = romanBuf.join("");
    return lowerCase ? romanStr.toLowerCase() : romanStr;
  }
  
  function log2(x) {
    if (x <= 0) {
      return 0;
    }
  
    return Math.ceil(Math.log2(x));
  }
  
  function readInt8(data, offset) {
    return data[offset] << 24 >> 24;
  }
  
  function readUint16(data, offset) {
    return data[offset] << 8 | data[offset + 1];
  }
  
  function readUint32(data, offset) {
    return (data[offset] << 24 | data[offset + 1] << 16 | data[offset + 2] << 8 | data[offset + 3]) >>> 0;
  }
  
  function isWhiteSpace(ch) {
    return ch === 0x20 || ch === 0x09 || ch === 0x0d || ch === 0x0a;
  }
  
  function parseXFAPath(path) {
    const positionPattern = /(.+)\[(\d+)\]$/;
    return path.split(".").map(component => {
      const m = component.match(positionPattern);
  
      if (m) {
        return {
          name: m[1],
          pos: parseInt(m[2], 10)
        };
      }
  
      return {
        name: component,
        pos: 0
      };
    });
  }
  
  function escapePDFName(str) {
    const buffer = [];
    let start = 0;
  
    for (let i = 0, ii = str.length; i < ii; i++) {
      const char = str.charCodeAt(i);
  
      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) {
        if (start < i) {
          buffer.push(str.substring(start, i));
        }
  
        buffer.push(`#${char.toString(16)}`);
        start = i + 1;
      }
    }
  
    if (buffer.length === 0) {
      return str;
    }
  
    if (start < str.length) {
      buffer.push(str.substring(start, str.length));
    }
  
    return buffer.join("");
  }
  
  function _collectJS(entry, xref, list, parents) {
    if (!entry) {
      return;
    }
  
    let parent = null;
  
    if ((0, _primitives.isRef)(entry)) {
      if (parents.has(entry)) {
        return;
      }
  
      parent = entry;
      parents.put(parent);
      entry = xref.fetch(entry);
    }
  
    if (Array.isArray(entry)) {
      for (const element of entry) {
        _collectJS(element, xref, list, parents);
      }
    } else if (entry instanceof _primitives.Dict) {
      if ((0, _primitives.isName)(entry.get("S"), "JavaScript") && entry.has("JS")) {
        const js = entry.get("JS");
        let code;
  
        if ((0, _primitives.isStream)(js)) {
          code = js.getString();
        } else {
          code = js;
        }
  
        code = (0, _util.stringToPDFString)(code);
  
        if (code) {
          list.push(code);
        }
      }
  
      _collectJS(entry.getRaw("Next"), xref, list, parents);
    }
  
    if (parent) {
      parents.remove(parent);
    }
  }
  
  function collectActions(xref, dict, eventType) {
    const actions = Object.create(null);
    const additionalActionsDicts = getInheritableProperty({
      dict,
      key: "AA",
      stopWhenFound: false
    });
  
    if (additionalActionsDicts) {
      for (let i = additionalActionsDicts.length - 1; i >= 0; i--) {
        const additionalActions = additionalActionsDicts[i];
  
        if (!(additionalActions instanceof _primitives.Dict)) {
          continue;
        }
  
        for (const key of additionalActions.getKeys()) {
          const action = eventType[key];
  
          if (!action) {
            continue;
          }
  
          const actionDict = additionalActions.getRaw(key);
          const parents = new _primitives.RefSet();
          const list = [];
  
          _collectJS(actionDict, xref, list, parents);
  
          if (list.length > 0) {
            actions[action] = list;
          }
        }
      }
    }
  
    if (dict.has("A")) {
      const actionDict = dict.get("A");
      const parents = new _primitives.RefSet();
      const list = [];
  
      _collectJS(actionDict, xref, list, parents);
  
      if (list.length > 0) {
        actions.Action = list;
      }
    }
  
    return (0, _util.objectSize)(actions) > 0 ? actions : null;
  }
  
  const XMLEntities = {
    0x3c: "&lt;",
    0x3e: "&gt;",
    0x26: "&amp;",
    0x22: "&quot;",
    0x27: "&apos;"
  };
  
  function encodeToXmlString(str) {
    const buffer = [];
    let start = 0;
  
    for (let i = 0, ii = str.length; i < ii; i++) {
      const char = str.codePointAt(i);
  
      if (0x20 <= char && char <= 0x7e) {
        const entity = XMLEntities[char];
  
        if (entity) {
          if (start < i) {
            buffer.push(str.substring(start, i));
          }
  
          buffer.push(entity);
          start = i + 1;
        }
      } else {
        if (start < i) {
          buffer.push(str.substring(start, i));
        }
  
        buffer.push(`&#x${char.toString(16).toUpperCase()};`);
  
        if (char > 0xd7ff && (char < 0xe000 || char > 0xfffd)) {
          i++;
        }
  
        start = i + 1;
      }
    }
  
    if (buffer.length === 0) {
      return str;
    }
  
    if (start < str.length) {
      buffer.push(str.substring(start, str.length));
    }
  
    return buffer.join("");
  }
  
  function validateCSSFont(cssFontInfo) {
    const DEFAULT_CSS_FONT_OBLIQUE = "14";
    const DEFAULT_CSS_FONT_WEIGHT = "400";
    const CSS_FONT_WEIGHT_VALUES = new Set(["100", "200", "300", "400", "500", "600", "700", "800", "900", "1000", "normal", "bold", "bolder", "lighter"]);
    const {
      fontFamily,
      fontWeight,
      italicAngle
    } = cssFontInfo;
  
    if (/^".*"$/.test(fontFamily)) {
      if (/[^\\]"/.test(fontFamily.slice(1, fontFamily.length - 1))) {
        (0, _util.warn)(`XFA - FontFamily contains some unescaped ": ${fontFamily}.`);
        return false;
      }
    } else if (/^'.*'$/.test(fontFamily)) {
      if (/[^\\]'/.test(fontFamily.slice(1, fontFamily.length - 1))) {
        (0, _util.warn)(`XFA - FontFamily contains some unescaped ': ${fontFamily}.`);
        return false;
      }
    } else {
      for (const ident of fontFamily.split(/[ \t]+/)) {
        if (/^(\d|(-(\d|-)))/.test(ident) || !/^[\w-\\]+$/.test(ident)) {
          (0, _util.warn)(`XFA - FontFamily contains some invalid <custom-ident>: ${fontFamily}.`);
          return false;
        }
      }
    }
  
    const weight = fontWeight ? fontWeight.toString() : "";
    cssFontInfo.fontWeight = CSS_FONT_WEIGHT_VALUES.has(weight) ? weight : DEFAULT_CSS_FONT_WEIGHT;
    const angle = parseFloat(italicAngle);
    cssFontInfo.italicAngle = isNaN(angle) || angle < -90 || angle > 90 ? DEFAULT_CSS_FONT_OBLIQUE : italicAngle.toString();
    return true;
  }
  
  function recoverJsURL(str) {
    const URL_OPEN_METHODS = ["app.launchURL", "window.open", "xfa.host.gotoURL"];
    const regex = new RegExp("^\\s*(" + URL_OPEN_METHODS.join("|").split(".").join("\\.") + ")\\((?:'|\")([^'\"]*)(?:'|\")(?:,\\s*(\\w+)\\)|\\))", "i");
    const jsUrl = regex.exec(str);
  
    if (jsUrl && jsUrl[2]) {
      const url = jsUrl[2];
      let newWindow = false;
  
      if (jsUrl[3] === "true" && jsUrl[1] === "app.launchURL") {
        newWindow = true;
      }
  
      return {
        url,
        newWindow
      };
    }
  
    return null;
  }
  
  /***/ }),
  /* 6 */
  /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  exports.clearPrimitiveCaches = clearPrimitiveCaches;
  exports.isCmd = isCmd;
  exports.isDict = isDict;
  exports.isName = isName;
  exports.isRef = isRef;
  exports.isRefsEqual = isRefsEqual;
  exports.isStream = isStream;
  exports.RefSetCache = exports.RefSet = exports.Ref = exports.Name = exports.EOF = exports.Dict = exports.Cmd = void 0;
  
  var _util = __w_pdfjs_require__(1);
  
  var _base_stream = __w_pdfjs_require__(7);
  
  const EOF = Symbol("EOF");
  exports.EOF = EOF;
  
  const Name = function NameClosure() {
    let nameCache = Object.create(null);
  
    class Name {
      constructor(name) {
        this.name = name;
      }
  
      static get(name) {
        const nameValue = nameCache[name];
        return nameValue ? nameValue : nameCache[name] = new Name(name);
      }
  
      static _clearCache() {
        nameCache = Object.create(null);
      }
  
    }
  
    return Name;
  }();
  
  exports.Name = Name;
  
  const Cmd = function CmdClosure() {
    let cmdCache = Object.create(null);
  
    class Cmd {
      constructor(cmd) {
        this.cmd = cmd;
      }
  
      static get(cmd) {
        const cmdValue = cmdCache[cmd];
        return cmdValue ? cmdValue : cmdCache[cmd] = new Cmd(cmd);
      }
  
      static _clearCache() {
        cmdCache = Object.create(null);
      }
  
    }
  
    return Cmd;
  }();
  
  exports.Cmd = Cmd;
  
  const nonSerializable = function nonSerializableClosure() {
    return nonSerializable;
  };
  
  class Dict {
    constructor(xref = null) {
      this._map = Object.create(null);
      this.xref = xref;
      this.objId = null;
      this.suppressEncryption = false;
      this.__nonSerializable__ = nonSerializable;
    }
  
    assignXref(newXref) {
      this.xref = newXref;
    }
  
    get size() {
      return Object.keys(this._map).length;
    }
  
    get(key1, key2, key3) {
      let value = this._map[key1];
  
      if (value === undefined && key2 !== undefined) {
        value = this._map[key2];
  
        if (value === undefined && key3 !== undefined) {
          value = this._map[key3];
        }
      }
  
      if (value instanceof Ref && this.xref) {
        return this.xref.fetch(value, this.suppressEncryption);
      }
  
      return value;
    }
  
    async getAsync(key1, key2, key3) {
      let value = this._map[key1];
  
      if (value === undefined && key2 !== undefined) {
        value = this._map[key2];
  
        if (value === undefined && key3 !== undefined) {
          value = this._map[key3];
        }
      }
  
      if (value instanceof Ref && this.xref) {
        return this.xref.fetchAsync(value, this.suppressEncryption);
      }
  
      return value;
    }
  
    getArray(key1, key2, key3) {
      let value = this._map[key1];
  
      if (value === undefined && key2 !== undefined) {
        value = this._map[key2];
  
        if (value === undefined && key3 !== undefined) {
          value = this._map[key3];
        }
      }
  
      if (value instanceof Ref && this.xref) {
        value = this.xref.fetch(value, this.suppressEncryption);
      }
  
      if (Array.isArray(value)) {
        value = value.slice();
  
        for (let i = 0, ii = value.length; i < ii; i++) {
          if (value[i] instanceof Ref && this.xref) {
            value[i] = this.xref.fetch(value[i], this.suppressEncryption);
          }
        }
      }
  
      return value;
    }
  
    getRaw(key) {
      return this._map[key];
    }
  
    getKeys() {
      return Object.keys(this._map);
    }
  
    getRawValues() {
      return Object.values(this._map);
    }
  
    set(key, value) {
      this._map[key] = value;
    }
  
    has(key) {
      return this._map[key] !== undefined;
    }
  
    forEach(callback) {
      for (const key in this._map) {
        callback(key, this.get(key));
      }
    }
  
    static get empty() {
      const emptyDict = new Dict(null);
  
      emptyDict.set = (key, value) => {
        (0, _util.unreachable)("Should not call `set` on the empty dictionary.");
      };
  
      return (0, _util.shadow)(this, "empty", emptyDict);
    }
  
    static merge({
      xref,
      dictArray,
      mergeSubDicts = false
    }) {
      const mergedDict = new Dict(xref),
            properties = new Map();
  
      for (const dict of dictArray) {
        if (!(dict instanceof Dict)) {
          continue;
        }
  
        for (const [key, value] of Object.entries(dict._map)) {
          let property = properties.get(key);
  
          if (property === undefined) {
            property = [];
            properties.set(key, property);
          } else if (!mergeSubDicts || !(value instanceof Dict)) {
            continue;
          }
  
          property.push(value);
        }
      }
  
      for (const [name, values] of properties) {
        if (values.length === 1 || !(values[0] instanceof Dict)) {
          mergedDict._map[name] = values[0];
          continue;
        }
  
        const subDict = new Dict(xref);
  
        for (const dict of values) {
          for (const [key, value] of Object.entries(dict._map)) {
            if (subDict._map[key] === undefined) {
              subDict._map[key] = value;
            }
          }
        }
  
        if (subDict.size > 0) {
          mergedDict._map[name] = subDict;
        }
      }
  
      properties.clear();
      return mergedDict.size > 0 ? mergedDict : Dict.empty;
    }
  
  }
  
  exports.Dict = Dict;
  
  const Ref = function RefClosure() {
    let refCache = Object.create(null);
  
    class Ref {
      constructor(num, gen) {
        this.num = num;
        this.gen = gen;
      }
  
      toString() {
        if (this.gen === 0) {
          return `${this.num}R`;
        }
  
        return `${this.num}R${this.gen}`;
      }
  
      static get(num, gen) {
        const key = gen === 0 ? `${num}R` : `${num}R${gen}`;
        const refValue = refCache[key];
        return refValue ? refValue : refCache[key] = new Ref(num, gen);
      }
  
      static _clearCache() {
        refCache = Object.create(null);
      }
  
    }
  
    return Ref;
  }();
  
  exports.Ref = Ref;
  
  class RefSet {
    constructor(parent = null) {
      this._set = new Set(parent && parent._set);
    }
  
    has(ref) {
      return this._set.has(ref.toString());
    }
  
    put(ref) {
      this._set.add(ref.toString());
    }
  
    remove(ref) {
      this._set.delete(ref.toString());
    }
  
    forEach(callback) {
      for (const ref of this._set.values()) {
        callback(ref);
      }
    }
  
    clear() {
      this._set.clear();
    }
  
  }
  
  exports.RefSet = RefSet;
  
  class RefSetCache {
    constructor() {
      this._map = new Map();
    }
  
    get size() {
      return this._map.size;
    }
  
    get(ref) {
      return this._map.get(ref.toString());
    }
  
    has(ref) {
      return this._map.has(ref.toString());
    }
  
    put(ref, obj) {
      this._map.set(ref.toString(), obj);
    }
  
    putAlias(ref, aliasRef) {
      this._map.set(ref.toString(), this.get(aliasRef));
    }
  
    forEach(callback) {
      for (const value of this._map.values()) {
        callback(value);
      }
    }
  
    clear() {
      this._map.clear();
    }
  
  }
  
  exports.RefSetCache = RefSetCache;
  
  function isName(v, name) {
    return v instanceof Name && (name === undefined || v.name === name);
  }
  
  function isCmd(v, cmd) {
    return v instanceof Cmd && (cmd === undefined || v.cmd === cmd);
  }
  
  function isDict(v, type) {
    return v instanceof Dict && (type === undefined || isName(v.get("Type"), type));
  }
  
  function isRef(v) {
    return v instanceof Ref;
  }
  
  function isRefsEqual(v1, v2) {
    return v1.num === v2.num && v1.gen === v2.gen;
  }
  
  function isStream(v) {
    return v instanceof _base_stream.BaseStream;
  }
  
  function clearPrimitiveCaches() {
    Cmd._clearCache();
  
    Name._clearCache();
  
    Ref._clearCache();
  }
  
  /***/ }),
  /* 7 */
  /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  exports.BaseStream = void 0;
  
  var _util = __w_pdfjs_require__(1);
  
  class BaseStream {
    constructor() {
      if (this.constructor === BaseStream) {
        (0, _util.unreachable)("Cannot initialize BaseStream.");
      }
    }
  
    get length() {
      (0, _util.unreachable)("Abstract getter `length` accessed");
    }
  
    get isEmpty() {
      (0, _util.unreachable)("Abstract getter `isEmpty` accessed");
    }
  
    get isDataLoaded() {
      return (0, _util.shadow)(this, "isDataLoaded", true);
    }
  
    getByte() {
      (0, _util.unreachable)("Abstract method `getByte` called");
    }
  
    getBytes(length, forceClamped = false) {
      (0, _util.unreachable)("Abstract method `getBytes` called");
    }
  
    peekByte() {
      const peekedByte = this.getByte();
  
      if (peekedByte !== -1) {
        this.pos--;
      }
  
      return peekedByte;
    }
  
    peekBytes(length, forceClamped = false) {
      const bytes = this.getBytes(length, forceClamped);
      this.pos -= bytes.length;
      return bytes;
    }
  
    getUint16() {
      const b0 = this.getByte();
      const b1 = this.getByte();
  
      if (b0 === -1 || b1 === -1) {
        return -1;
      }
  
      return (b0 << 8) + b1;
    }
  
    getInt32() {
      const b0 = this.getByte();
      const b1 = this.getByte();
      const b2 = this.getByte();
      const b3 = this.getByte();
      return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3;
    }
  
    getByteRange(begin, end) {
      (0, _util.unreachable)("Abstract method `getByteRange` called");
    }
  
    getString(length) {
      return (0, _util.bytesToString)(this.getBytes(length, false));
    }
  
    skip(n) {
      this.pos += n || 1;
    }
  
    reset() {
      (0, _util.unreachable)("Abstract method `reset` called");
    }
  
    moveStart() {
      (0, _util.unreachable)("Abstract method `moveStart` called");
    }
  
    makeSubStream(start, length, dict = null) {
      (0, _util.unreachable)("Abstract method `makeSubStream` called");
    }
  
    getBaseStreams() {
      return null;
    }
  
  }
  
  exports.BaseStream = BaseStream;
  
  /***/ }),
  /* 8 */
  /***/ ((__unused_webpack_module, exports) => {
  
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  exports.ArithmeticDecoder = void 0;
  const QeTable = [{
    qe: 0x5601,
    nmps: 1,
    nlps: 1,
    switchFlag: 1
  }, {
    qe: 0x3401,
    nmps: 2,
    nlps: 6,
    switchFlag: 0
  }, {
    qe: 0x1801,
    nmps: 3,
    nlps: 9,
    switchFlag: 0
  }, {
    qe: 0x0ac1,
    nmps: 4,
    nlps: 12,
    switchFlag: 0
  }, {
    qe: 0x0521,
    nmps: 5,
    nlps: 29,
    switchFlag: 0
  }, {
    qe: 0x0221,
    nmps: 38,
    nlps: 33,
    switchFlag: 0
  }, {
    qe: 0x5601,
    nmps: 7,
    nlps: 6,
    switchFlag: 1
  }, {
    qe: 0x5401,
    nmps: 8,
    nlps: 14,
    switchFlag: 0
  }, {
    qe: 0x4801,
    nmps: 9,
    nlps: 14,
    switchFlag: 0
  }, {
    qe: 0x3801,
    nmps: 10,
    nlps: 14,
    switchFlag: 0
  }, {
    qe: 0x3001,
    nmps: 11,
    nlps: 17,
    switchFlag: 0
  }, {
    qe: 0x2401,
    nmps: 12,
    nlps: 18,
    switchFlag: 0
  }, {
    qe: 0x1c01,
    nmps: 13,
    nlps: 20,
    switchFlag: 0
  }, {
    qe: 0x1601,
    nmps: 29,
    nlps: 21,
    switchFlag: 0
  }, {
    qe: 0x5601,
    nmps: 15,
    nlps: 14,
    switchFlag: 1
  }, {
    qe: 0x5401,
    nmps: 16,
    nlps: 14,
    switchFlag: 0
  }, {
    qe: 0x5101,
    nmps: 17,
    nlps: 15,
    switchFlag: 0
  }, {
    qe: 0x4801,
    nmps: 18,
    nlps: 16,
    switchFlag: 0
  }, {
    qe: 0x3801,
    nmps: 19,
    nlps: 17,
    switchFlag: 0
  }, {
    qe: 0x3401,
    nmps: 20,
    nlps: 18,
    switchFlag: 0
  }, {
    qe: 0x3001,
    nmps: 21,
    nlps: 19,
    switchFlag: 0
  }, {
    qe: 0x2801,
    nmps: 22,
    nlps: 19,
    switchFlag: 0
  }, {
    qe: 0x2401,
    nmps: 23,
    nlps: 20,
    switchFlag: 0
  }, {
    qe: 0x2201,
    nmps: 24,
    nlps: 21,
    switchFlag: 0
  }, {
    qe: 0x1c01,
    nmps: 25,
    nlps: 22,
    switchFlag: 0
  }, {
    qe: 0x1801,
    nmps: 26,
    nlps: 23,
    switchFlag: 0
  }, {
    qe: 0x1601,
    nmps: 27,
    nlps: 24,
    switchFlag: 0
  }, {
    qe: 0x1401,
    nmps: 28,
    nlps: 25,
    switchFlag: 0
  }, {
    qe: 0x1201,
    nmps: 29,
    nlps: 26,
    switchFlag: 0
  }, {
    qe: 0x1101,
    nmps: 30,
    nlps: 27,
    switchFlag: 0
  }, {
    qe: 0x0ac1,
    nmps: 31,
    nlps: 28,
    switchFlag: 0
  }, {
    qe: 0x09c1,
    nmps: 32,
    nlps: 29,
    switchFlag: 0
  }, {
    qe: 0x08a1,
    nmps: 33,
    nlps: 30,
    switchFlag: 0
  }, {
    qe: 0x0521,
    nmps: 34,
    nlps: 31,
    switchFlag: 0
  }, {
    qe: 0x0441,
    nmps: 35,
    nlps: 32,
    switchFlag: 0
  }, {
    qe: 0x02a1,
    nmps: 36,
    nlps: 33,
    switchFlag: 0
  }, {
    qe: 0x0221,
    nmps: 37,
    nlps: 34,
    switchFlag: 0
  }, {
    qe: 0x0141,
    nmps: 38,
    nlps: 35,
    switchFlag: 0
  }, {
    qe: 0x0111,
    nmps: 39,
    nlps: 36,
    switchFlag: 0
  }, {
    qe: 0x0085,
    nmps: 40,
    nlps: 37,
    switchFlag: 0
  }, {
    qe: 0x0049,
    nmps: 41,
    nlps: 38,
    switchFlag: 0
  }, {
    qe: 0x0025,
    nmps: 42,
    nlps: 39,
    switchFlag: 0
  }, {
    qe: 0x0015,
    nmps: 43,
    nlps: 40,
    switchFlag: 0
  }, {
    qe: 0x0009,
    nmps: 44,
    nlps: 41,
    switchFlag: 0
  }, {
    qe: 0x0005,
    nmps: 45,
    nlps: 42,
    switchFlag: 0
  }, {
    qe: 0x0001,
    nmps: 45,
    nlps: 43,
    switchFlag: 0
  }, {
    qe: 0x5601,
    nmps: 46,
    nlps: 46,
    switchFlag: 0
  }];
  
  class ArithmeticDecoder {
    constructor(data, start, end) {
      this.data = data;
      this.bp = start;
      this.dataEnd = end;
      this.chigh = data[start];
      this.clow = 0;
      this.byteIn();
      this.chigh = this.chigh << 7 & 0xffff | this.clow >> 9 & 0x7f;
      this.clow = this.clow << 7 & 0xffff;
      this.ct -= 7;
      this.a = 0x8000;
    }
  
    byteIn() {
      const data = this.data;
      let bp = this.bp;
  
      if (data[bp] === 0xff) {
        if (data[bp + 1] > 0x8f) {
          this.clow += 0xff00;
          this.ct = 8;
        } else {
          bp++;
          this.clow += data[bp] << 9;
          this.ct = 7;
          this.bp = bp;
        }
      } else {
        bp++;
        this.clow += bp < this.dataEnd ? data[bp] << 8 : 0xff00;
        this.ct = 8;
        this.bp = bp;
      }
  
      if (this.clow > 0xffff) {
        this.chigh += this.clow >> 16;
        this.clow &= 0xffff;
      }
    }
  
    readBit(contexts, pos) {
      let cx_index = contexts[pos] >> 1,
          cx_mps = contexts[pos] & 1;
      const qeTableIcx = QeTable[cx_index];
      const qeIcx = qeTableIcx.qe;
      let d;
      let a = this.a - qeIcx;
  
      if (this.chigh < qeIcx) {
        if (a < qeIcx) {
          a = qeIcx;
          d = cx_mps;
          cx_index = qeTableIcx.nmps;
        } else {
          a = qeIcx;
          d = 1 ^ cx_mps;
  
          if (qeTableIcx.switchFlag === 1) {
            cx_mps = d;
          }
  
          cx_index = qeTableIcx.nlps;
        }
      } else {
        this.chigh -= qeIcx;
  
        if ((a & 0x8000) !== 0) {
          this.a = a;
          return cx_mps;
        }
  
        if (a < qeIcx) {
          d = 1 ^ cx_mps;
  
          if (qeTableIcx.switchFlag === 1) {
            cx_mps = d;
          }
  
          cx_index = qeTableIcx.nlps;
        } else {
          d = cx_mps;
          cx_index = qeTableIcx.nmps;
        }
      }
  
      do {
        if (this.ct === 0) {
          this.byteIn();
        }
  
        a <<= 1;
        this.chigh = this.chigh << 1 & 0xffff | this.clow >> 15 & 1;
        this.clow = this.clow << 1 & 0xffff;
        this.ct--;
      } while ((a & 0x8000) === 0);
  
      this.a = a;
      contexts[pos] = cx_index << 1 | cx_mps;
      return d;
    }
  
  }
  
  exports.ArithmeticDecoder = ArithmeticDecoder;
  
  /***/ }),
  /* 9 */
  /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  exports.CCITTFaxDecoder = void 0;
  
  var _util = __w_pdfjs_require__(1);
  
  const ccittEOL = -2;
  const ccittEOF = -1;
  const twoDimPass = 0;
  const twoDimHoriz = 1;
  const twoDimVert0 = 2;
  const twoDimVertR1 = 3;
  const twoDimVertL1 = 4;
  const twoDimVertR2 = 5;
  const twoDimVertL2 = 6;
  const twoDimVertR3 = 7;
  const twoDimVertL3 = 8;
  const 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]];
  const 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]];
  const 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]];
  const 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]];
  const 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]];
  const 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]];
  
  class CCITTFaxDecoder {
    constructor(source, options = {}) {
      if (!source || typeof source.next !== "function") {
        throw new Error('CCITTFaxDecoder - invalid "source" parameter.');
      }
  
      this.source = source;
      this.eof = false;
      this.encoding = options.K || 0;
      this.eoline = options.EndOfLine || false;
      this.byteAlign = options.EncodedByteAlign || false;
      this.columns = options.Columns || 1728;
      this.rows = options.Rows || 0;
      let eoblock = options.EndOfBlock;
  
      if (eoblock === null || eoblock === undefined) {
        eoblock = true;
      }
  
      this.eoblock = eoblock;
      this.black = options.BlackIs1 || false;
      this.codingLine = new Uint32Array(this.columns + 1);
      this.refLine = new Uint32Array(this.columns + 2);
      this.codingLine[0] = this.columns;
      this.codingPos = 0;
      this.row = 0;
      this.nextLine2D = this.encoding < 0;
      this.inputBits = 0;
      this.inputBuf = 0;
      this.outputBits = 0;
      this.rowsDone = false;
      let code1;
  
      while ((code1 = this._lookBits(12)) === 0) {
        this._eatBits(1);
      }
  
      if (code1 === 1) {
        this._eatBits(12);
      }
  
      if (this.encoding > 0) {
        this.nextLine2D = !this._lookBits(1);
  
        this._eatBits(1);
      }
    }
  
    readNextChar() {
      if (this.eof) {
        return -1;
      }
  
      const refLine = this.refLine;
      const codingLine = this.codingLine;
      const columns = this.columns;
      let refPos, blackPixels, bits, i;
  
      if (this.outputBits === 0) {
        if (this.rowsDone) {
          this.eof = true;
        }
  
        if (this.eof) {
          return -1;
        }
  
        this.err = false;
        let code1, code2, code3;
  
        if (this.nextLine2D) {
          for (i = 0; codingLine[i] < columns; ++i) {
            refLine[i] = codingLine[i];
          }
  
          refLine[i++] = columns;
          refLine[i] = columns;
          codingLine[0] = 0;
          this.codingPos = 0;
          refPos = 0;
          blackPixels = 0;
  
          while (codingLine[this.codingPos] < columns) {
            code1 = this._getTwoDimCode();
  
            switch (code1) {
              case twoDimPass:
                this._addPixels(refLine[refPos + 1], blackPixels);
  
                if (refLine[refPos + 1] < columns) {
                  refPos += 2;
                }
  
                break;
  
              case twoDimHoriz:
                code1 = code2 = 0;
  
                if (blackPixels) {
                  do {
                    code1 += code3 = this._getBlackCode();
                  } while (code3 >= 64);
  
                  do {
                    code2 += code3 = this._getWhiteCode();
                  } while (code3 >= 64);
                } else {
                  do {
                    code1 += code3 = this._getWhiteCode();
                  } while (code3 >= 64);
  
                  do {
                    code2 += code3 = this._getBlackCode();
                  } while (code3 >= 64);
                }
  
                this._addPixels(codingLine[this.codingPos] + code1, blackPixels);
  
                if (codingLine[this.codingPos] < columns) {
                  this._addPixels(codingLine[this.codingPos] + code2, blackPixels ^ 1);
                }
  
                while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
                  refPos += 2;
                }
  
                break;
  
              case twoDimVertR3:
                this._addPixels(refLine[refPos] + 3, blackPixels);
  
                blackPixels ^= 1;
  
                if (codingLine[this.codingPos] < columns) {
                  ++refPos;
  
                  while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
                    refPos += 2;
                  }
                }
  
                break;
  
              case twoDimVertR2:
                this._addPixels(refLine[refPos] + 2, blackPixels);
  
                blackPixels ^= 1;
  
                if (codingLine[this.codingPos] < columns) {
                  ++refPos;
  
                  while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
                    refPos += 2;
                  }
                }
  
                break;
  
              case twoDimVertR1:
                this._addPixels(refLine[refPos] + 1, blackPixels);
  
                blackPixels ^= 1;
  
                if (codingLine[this.codingPos] < columns) {
                  ++refPos;
  
                  while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
                    refPos += 2;
                  }
                }
  
                break;
  
              case twoDimVert0:
                this._addPixels(refLine[refPos], blackPixels);
  
                blackPixels ^= 1;
  
                if (codingLine[this.codingPos] < columns) {
                  ++refPos;
  
                  while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
                    refPos += 2;
                  }
                }
  
                break;
  
              case twoDimVertL3:
                this._addPixelsNeg(refLine[refPos] - 3, blackPixels);
  
                blackPixels ^= 1;
  
                if (codingLine[this.codingPos] < columns) {
                  if (refPos > 0) {
                    --refPos;
                  } else {
                    ++refPos;
                  }
  
                  while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
                    refPos += 2;
                  }
                }
  
                break;
  
              case twoDimVertL2:
                this._addPixelsNeg(refLine[refPos] - 2, blackPixels);
  
                blackPixels ^= 1;
  
                if (codingLine[this.codingPos] < columns) {
                  if (refPos > 0) {
                    --refPos;
                  } else {
                    ++refPos;
                  }
  
                  while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
                    refPos += 2;
                  }
                }
  
                break;
  
              case twoDimVertL1:
                this._addPixelsNeg(refLine[refPos] - 1, blackPixels);
  
                blackPixels ^= 1;
  
                if (codingLine[this.codingPos] < columns) {
                  if (refPos > 0) {
                    --refPos;
                  } else {
                    ++refPos;
                  }
  
                  while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {
                    refPos += 2;
                  }
                }
  
                break;
  
              case ccittEOF:
                this._addPixels(columns, 0);
  
                this.eof = true;
                break;
  
              default:
                (0, _util.info)("bad 2d code");
  
                this._addPixels(columns, 0);
  
                this.err = true;
            }
          }
        } else {
          codingLine[0] = 0;
          this.codingPos = 0;
          blackPixels = 0;
  
          while (codingLine[this.codingPos] < columns) {
            code1 = 0;
  
            if (blackPixels) {
              do {
                code1 += code3 = this._getBlackCode();
              } while (code3 >= 64);
            } else {
              do {
                code1 += code3 = this._getWhiteCode();
              } while (code3 >= 64);
            }
  
            this._addPixels(codingLine[this.codingPos] + code1, blackPixels);
  
            blackPixels ^= 1;
          }
        }
  
        let gotEOL = false;
  
        if (this.byteAlign) {
          this.inputBits &= ~7;
        }
  
        if (!this.eoblock && this.row === this.rows - 1) {
          this.rowsDone = true;
        } else {
          code1 = this._lookBits(12);
  
          if (this.eoline) {
            while (code1 !== ccittEOF && code1 !== 1) {
              this._eatBits(1);
  
              code1 = this._lookBits(12);
            }
          } else {
            while (code1 === 0) {
              this._eatBits(1);
  
              code1 = this._lookBits(12);
            }
          }
  
          if (code1 === 1) {
            this._eatBits(12);
  
            gotEOL = true;
          } else if (code1 === ccittEOF) {
            this.eof = true;
          }
        }
  
        if (!this.eof && this.encoding > 0 && !this.rowsDone) {
          this.nextLine2D = !this._lookBits(1);
  
          this._eatBits(1);
        }
  
        if (this.eoblock && gotEOL && this.byteAlign) {
          code1 = this._lookBits(12);
  
          if (code1 === 1) {
            this._eatBits(12);
  
            if (this.encoding > 0) {
              this._lookBits(1);
  
              this._eatBits(1);
            }
  
            if (this.encoding >= 0) {
              for (i = 0; i < 4; ++i) {
                code1 = this._lookBits(12);
  
                if (code1 !== 1) {
                  (0, _util.info)("bad rtc code: " + code1);
                }
  
                this._eatBits(12);
  
                if (this.encoding > 0) {
                  this._lookBits(1);
  
                  this._eatBits(1);
                }
              }
            }
  
            this.eof = true;
          }
        } else if (this.err && this.eoline) {
          while (true) {
            code1 = this._lookBits(13);
  
            if (code1 === ccittEOF) {
              this.eof = true;
              return -1;
            }
  
            if (code1 >> 1 === 1) {
              break;
            }
  
            this._eatBits(1);
          }
  
          this._eatBits(12);
  
          if (this.encoding > 0) {
            this._eatBits(1);
  
            this.nextLine2D = !(code1 & 1);
          }
        }
  
        if (codingLine[0] > 0) {
          this.outputBits = codingLine[this.codingPos = 0];
        } else {
          this.outputBits = codingLine[this.codingPos = 1];
        }
  
        this.row++;
      }
  
      let c;
  
      if (this.outputBits >= 8) {
        c = this.codingPos & 1 ? 0 : 0xff;
        this.outputBits -= 8;
  
        if (this.outputBits === 0 && codingLine[this.codingPos] < columns) {
          this.codingPos++;
          this.outputBits = codingLine[this.codingPos] - codingLine[this.codingPos - 1];
        }
      } else {
        bits = 8;
        c = 0;
  
        do {
          if (this.outputBits > bits) {
            c <<= bits;
  
            if (!(this.codingPos & 1)) {
              c |= 0xff >> 8 - bits;
            }
  
            this.outputBits -= bits;
            bits = 0;
          } else {
            c <<= this.outputBits;
  
            if (!(this.codingPos & 1)) {
              c |= 0xff >> 8 - this.outputBits;
            }
  
            bits -= this.outputBits;
            this.outputBits = 0;
  
            if (codingLine[this.codingPos] < columns) {
              this.codingPos++;
              this.outputBits = codingLine[this.codingPos] - codingLine[this.codingPos - 1];
            } else if (bits > 0) {
              c <<= bits;
              bits = 0;
            }
          }
        } while (bits);
      }
  
      if (this.black) {
        c ^= 0xff;
      }
  
      return c;
    }
  
    _addPixels(a1, blackPixels) {
      const codingLine = this.codingLine;
      let codingPos = this.codingPos;
  
      if (a1 > codingLine[codingPos]) {
        if (a1 > this.columns) {
          (0, _util.info)("row is wrong length");
          this.err = true;
          a1 = this.columns;
        }
  
        if (codingPos & 1 ^ blackPixels) {
          ++codingPos;
        }
  
        codingLine[codingPos] = a1;
      }
  
      this.codingPos = codingPos;
    }
  
    _addPixelsNeg(a1, blackPixels) {
      const codingLine = this.codingLine;
      let codingPos = this.codingPos;
  
      if (a1 > codingLine[codingPos]) {
        if (a1 > this.columns) {
          (0, _util.info)("row is wrong length");
          this.err = true;
          a1 = this.columns;
        }
  
        if (codingPos & 1 ^ blackPixels) {
          ++codingPos;
        }
  
        codingLine[codingPos] = a1;
      } else if (a1 < codingLine[codingPos]) {
        if (a1 < 0) {
          (0, _util.info)("invalid code");
          this.err = true;
          a1 = 0;
        }
  
        while (codingPos > 0 && a1 < codingLine[codingPos - 1]) {
          --codingPos;
        }
  
        codingLine[codingPos] = a1;
      }
  
      this.codingPos = codingPos;
    }
  
    _findTableCode(start, end, table, limit) {
      const limitValue = limit || 0;
  
      for (let i = start; i <= end; ++i) {
        let code = this._lookBits(i);
  
        if (code === ccittEOF) {
          return [true, 1, false];
        }
  
        if (i < end) {
          code <<= end - i;
        }
  
        if (!limitValue || code >= limitValue) {
          const p = table[code - limitValue];
  
          if (p[0] === i) {
            this._eatBits(i);
  
            return [true, p[1], true];
          }
        }
      }
  
      return [false, 0, false];
    }
  
    _getTwoDimCode() {
      let code = 0;
      let p;
  
      if (this.eoblock) {
        code = this._lookBits(7);
        p = twoDimTable[code];
  
        if (p && p[0] > 0) {
          this._eatBits(p[0]);
  
          return p[1];
        }
      } else {
        const result = this._findTableCode(1, 7, twoDimTable);
  
        if (result[0] && result[2]) {
          return result[1];
        }
      }
  
      (0, _util.info)("Bad two dim code");
      return ccittEOF;
    }
  
    _getWhiteCode() {
      let code = 0;
      let p;
  
      if (this.eoblock) {
        code = this._lookBits(12);
  
        if (code === ccittEOF) {
          return 1;
        }
  
        if (code >> 5 === 0) {
          p = whiteTable1[code];
        } else {
          p = whiteTable2[code >> 3];
        }
  
        if (p[0] > 0) {
          this._eatBits(p[0]);
  
          return p[1];
        }
      } else {
        let result = this._findTableCode(1, 9, whiteTable2);
  
        if (result[0]) {
          return result[1];
        }
  
        result = this._findTableCode(11, 12, whiteTable1);
  
        if (result[0]) {
          return result[1];
        }
      }
  
      (0, _util.info)("bad white code");
  
      this._eatBits(1);
  
      return 1;
    }
  
    _getBlackCode() {
      let code, p;
  
      if (this.eoblock) {
        code = this._lookBits(13);
  
        if (code === ccittEOF) {
          return 1;
        }
  
        if (code >> 7 === 0) {
          p = blackTable1[code];
        } else if (code >> 9 === 0 && code >> 7 !== 0) {
          p = blackTable2[(code >> 1) - 64];
        } else {
          p = blackTable3[code >> 7];
        }
  
        if (p[0] > 0) {
          this._eatBits(p[0]);
  
          return p[1];
        }
      } else {
        let result = this._findTableCode(2, 6, blackTable3);
  
        if (result[0]) {
          return result[1];
        }
  
        result = this._findTableCode(7, 12, blackTable2, 64);
  
        if (result[0]) {
          return result[1];
        }
  
        result = this._findTableCode(10, 13, blackTable1);
  
        if (result[0]) {
          return result[1];
        }
      }
  
      (0, _util.info)("bad black code");
  
      this._eatBits(1);
  
      return 1;
    }
  
    _lookBits(n) {
      let c;
  
      while (this.inputBits < n) {
        if ((c = this.source.next()) === -1) {
          if (this.inputBits === 0) {
            return ccittEOF;
          }
  
          return this.inputBuf << n - this.inputBits & 0xffff >> 16 - n;
        }
  
        this.inputBuf = this.inputBuf << 8 | c;
        this.inputBits += 8;
      }
  
      return this.inputBuf >> this.inputBits - n & 0xffff >> 16 - n;
    }
  
    _eatBits(n) {
      if ((this.inputBits -= n) < 0) {
        this.inputBits = 0;
      }
    }
  
  }
  
  exports.CCITTFaxDecoder = CCITTFaxDecoder;
  
  /***/ }),
  /* 10 */
  /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  exports.JpegImage = void 0;
  
  var _util = __w_pdfjs_require__(1);
  
  var _core_utils = __w_pdfjs_require__(5);
  
  class JpegError extends _util.BaseException {
    constructor(msg) {
      super(`JPEG error: ${msg}`, "JpegError");
    }
  
  }
  
  class DNLMarkerError extends _util.BaseException {
    constructor(message, scanLines) {
      super(message, "DNLMarkerError");
      this.scanLines = scanLines;
    }
  
  }
  
  class EOIMarkerError extends _util.BaseException {
    constructor(msg) {
      super(msg, "EOIMarkerError");
    }
  
  }
  
  const 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]);
  const dctCos1 = 4017;
  const dctSin1 = 799;
  const dctCos3 = 3406;
  const dctSin3 = 2276;
  const dctCos6 = 1567;
  const dctSin6 = 3784;
  const dctSqrt2 = 5793;
  const dctSqrt1d2 = 2896;
  
  function buildHuffmanTable(codeLengths, values) {
    let k = 0,
        i,
        j,
        length = 16;
  
    while (length > 0 && !codeLengths[length - 1]) {
      length--;
    }
  
    const code = [{
      children: [],
      index: 0
    }];
    let p = code[0],
        q;
  
    for (i = 0; i < length; i++) {
      for (j = 0; j < codeLengths[i]; j++) {
        p = code.pop();
        p.children[p.index] = values[k];
  
        while (p.index > 0) {
          p = code.pop();
        }
  
        p.index++;
        code.push(p);
  
        while (code.length <= i) {
          code.push(q = {
            children: [],
            index: 0
          });
          p.children[p.index] = q.children;
          p = q;
        }
  
        k++;
      }
  
      if (i + 1 < length) {
        code.push(q = {
          children: [],
          index: 0
        });
        p.children[p.index] = q.children;
        p = q;
      }
    }
  
    return code[0].children;
  }
  
  function getBlockBufferOffset(component, row, col) {
    return 64 * ((component.blocksPerLine + 1) * row + col);
  }
  
  function decodeScan(data, offset, frame, components, resetInterval, spectralStart, spectralEnd, successivePrev, successive, parseDNLMarker = false) {
    const mcusPerLine = frame.mcusPerLine;
    const progressive = frame.progressive;
    const startOffset = offset;
    let bitsData = 0,
        bitsCount = 0;
  
    function readBit() {
      if (bitsCount > 0) {
        bitsCount--;
        return bitsData >> bitsCount & 1;
      }
  
      bitsData = data[offset++];
  
      if (bitsData === 0xff) {
        const nextByte = data[offset++];
  
        if (nextByte) {
          if (nextByte === 0xdc && parseDNLMarker) {
            offset += 2;
            const scanLines = (0, _core_utils.readUint16)(data, offset);
            offset += 2;
  
            if (scanLines > 0 && scanLines !== frame.scanLines) {
              throw new DNLMarkerError("Found DNL marker (0xFFDC) while parsing scan data", scanLines);
            }
          } else if (nextByte === 0xd9) {
            if (parseDNLMarker) {
              const maybeScanLines = blockRow * (frame.precision === 8 ? 8 : 0);
  
              if (maybeScanLines > 0 && Math.round(frame.scanLines / maybeScanLines) >= 10) {
                throw new DNLMarkerError("Found EOI marker (0xFFD9) while parsing scan data, " + "possibly caused by incorrect `scanLines` parameter", maybeScanLines);
              }
            }
  
            throw new EOIMarkerError("Found EOI marker (0xFFD9) while parsing scan data");
          }
  
          throw new JpegError(`unexpected marker ${(bitsData << 8 | nextByte).toString(16)}`);
        }
      }
  
      bitsCount = 7;
      return bitsData >>> 7;
    }
  
    function decodeHuffman(tree) {
      let node = tree;
  
      while (true) {
        node = node[readBit()];
  
        switch (typeof node) {
          case "number":
            return node;
  
          case "object":
            continue;
        }
  
        throw new JpegError("invalid huffman sequence");
      }
    }
  
    function receive(length) {
      let n = 0;
  
      while (length > 0) {
        n = n << 1 | readBit();
        length--;
      }
  
      return n;
    }
  
    function receiveAndExtend(length) {
      if (length === 1) {
        return readBit() === 1 ? 1 : -1;
      }
  
      const n = receive(length);
  
      if (n >= 1 << length - 1) {
        return n;
      }
  
      return n + (-1 << length) + 1;
    }
  
    function decodeBaseline(component, blockOffset) {
      const t = decodeHuffman(component.huffmanTableDC);
      const diff = t === 0 ? 0 : receiveAndExtend(t);
      component.blockData[blockOffset] = component.pred += diff;
      let k = 1;
  
      while (k < 64) {
        const rs = decodeHuffman(component.huffmanTableAC);
        const s = rs & 15,
              r = rs >> 4;
  
        if (s === 0) {
          if (r < 15) {
            break;
          }
  
          k += 16;
          continue;
        }
  
        k += r;
        const z = dctZigZag[k];
        component.blockData[blockOffset + z] = receiveAndExtend(s);
        k++;
      }
    }
  
    function decodeDCFirst(component, blockOffset) {
      const t = decodeHuffman(component.huffmanTableDC);
      const diff = t === 0 ? 0 : receiveAndExtend(t) << successive;
      component.blockData[blockOffset] = component.pred += diff;
    }
  
    function decodeDCSuccessive(component, blockOffset) {
      component.blockData[blockOffset] |= readBit() << successive;
    }
  
    let eobrun = 0;
  
    function decodeACFirst(component, blockOffset) {
      if (eobrun > 0) {
        eobrun--;
        return;
      }
  
      let k = spectralStart;
      const e = spectralEnd;
  
      while (k <= e) {
        const rs = decodeHuffman(component.huffmanTableAC);
        const s = rs & 15,
              r = rs >> 4;
  
        if (s === 0) {
          if (r < 15) {
            eobrun = receive(r) + (1 << r) - 1;
            break;
          }
  
          k += 16;
          continue;
        }
  
        k += r;
        const z = dctZigZag[k];
        component.blockData[blockOffset + z] = receiveAndExtend(s) * (1 << successive);
        k++;
      }
    }
  
    let successiveACState = 0,
        successiveACNextValue;
  
    function decodeACSuccessive(component, blockOffset) {
      let k = spectralStart;
      const e = spectralEnd;
      let r = 0;
      let s;
      let rs;
  
      while (k <= e) {
        const offsetZ = blockOffset + dctZigZag[k];
        const sign = component.blockData[offsetZ] < 0 ? -1 : 1;
  
        switch (successiveACState) {
          case 0:
            rs = decodeHuffman(component.huffmanTableAC);
            s = rs & 15;
            r = rs >> 4;
  
            if (s === 0) {
              if (r < 15) {
                eobrun = receive(r) + (1 << r);
                successiveACState = 4;
              } else {
                r = 16;
                successiveACState = 1;
              }
            } else {
              if (s !== 1) {
                throw new JpegError("invalid ACn encoding");
              }
  
              successiveACNextValue = receiveAndExtend(s);
              successiveACState = r ? 2 : 3;
            }
  
            continue;
  
          case 1:
          case 2:
            if (component.blockData[offsetZ]) {
              component.blockData[offsetZ] += sign * (readBit() << successive);
            } else {
              r--;
  
              if (r === 0) {
                successiveACState = successiveACState === 2 ? 3 : 0;
              }
            }
  
            break;
  
          case 3:
            if (component.blockData[offsetZ]) {
              component.blockData[offsetZ] += sign * (readBit() << successive);
            } else {
              component.blockData[offsetZ] = successiveACNextValue << successive;
              successiveACState = 0;
            }
  
            break;
  
          case 4:
            if (component.blockData[offsetZ]) {
              component.blockData[offsetZ] += sign * (readBit() << successive);
            }
  
            break;
        }
  
        k++;
      }
  
      if (successiveACState === 4) {
        eobrun--;
  
        if (eobrun === 0) {
          successiveACState = 0;
        }
      }
    }
  
    let blockRow = 0;
  
    function decodeMcu(component, decode, mcu, row, col) {
      const mcuRow = mcu / mcusPerLine | 0;
      const mcuCol = mcu % mcusPerLine;
      blockRow = mcuRow * component.v + row;
      const blockCol = mcuCol * component.h + col;
      const blockOffset = getBlockBufferOffset(component, blockRow, blockCol);
      decode(component, blockOffset);
    }
  
    function decodeBlock(component, decode, mcu) {
      blockRow = mcu / component.blocksPerLine | 0;
      const blockCol = mcu % component.blocksPerLine;
      const blockOffset = getBlockBufferOffset(component, blockRow, blockCol);
      decode(component, blockOffset);
    }
  
    const componentsLength = components.length;
    let component, i, j, k, n;
    let decodeFn;
  
    if (progressive) {
      if (spectralStart === 0) {
        decodeFn = successivePrev === 0 ? decodeDCFirst : decodeDCSuccessive;
      } else {
        decodeFn = successivePrev === 0 ? decodeACFirst : decodeACSuccessive;
      }
    } else {
      decodeFn = decodeBaseline;
    }
  
    let mcu = 0,
        fileMarker;
    let mcuExpected;
  
    if (componentsLength === 1) {
      mcuExpected = components[0].blocksPerLine * components[0].blocksPerColumn;
    } else {
      mcuExpected = mcusPerLine * frame.mcusPerColumn;
    }
  
    let h, v;
  
    while (mcu <= mcuExpected) {
      const mcuToRead = resetInterval ? Math.min(mcuExpected - mcu, resetInterval) : mcuExpected;
  
      if (mcuToRead > 0) {
        for (i = 0; i < componentsLength; i++) {
          components[i].pred = 0;
        }
  
        eobrun = 0;
  
        if (componentsLength === 1) {
          component = components[0];
  
          for (n = 0; n < mcuToRead; n++) {
            decodeBlock(component, decodeFn, mcu);
            mcu++;
          }
        } else {
          for (n = 0; n < mcuToRead; n++) {
            for (i = 0; i < componentsLength; i++) {
              component = components[i];
              h = component.h;
              v = component.v;
  
              for (j = 0; j < v; j++) {
                for (k = 0; k < h; k++) {
                  decodeMcu(component, decodeFn, mcu, j, k);
                }
              }
            }
  
            mcu++;
          }
        }
      }
  
      bitsCount = 0;
      fileMarker = findNextFileMarker(data, offset);
  
      if (!fileMarker) {
        break;
      }
  
      if (fileMarker.invalid) {
        const partialMsg = mcuToRead > 0 ? "unexpected" : "excessive";
        (0, _util.warn)(`decodeScan - ${partialMsg} MCU data, current marker is: ${fileMarker.invalid}`);
        offset = fileMarker.offset;
      }
  
      if (fileMarker.marker >= 0xffd0 && fileMarker.marker <= 0xffd7) {
        offset += 2;
      } else {
        break;
      }
    }
  
    return offset - startOffset;
  }
  
  function quantizeAndInverse(component, blockBufferOffset, p) {
    const qt = component.quantizationTable,
          blockData = component.blockData;
    let v0, v1, v2, v3, v4, v5, v6, v7;
    let p0, p1, p2, p3, p4, p5, p6, p7;
    let t;
  
    if (!qt) {
      throw new JpegError("missing required Quantization Table.");
    }
  
    for (let row = 0; row < 64; row += 8) {
      p0 = blockData[blockBufferOffset + row];
      p1 = blockData[blockBufferOffset + row + 1];
      p2 = blockData[blockBufferOffset + row + 2];
      p3 = blockData[blockBufferOffset + row + 3];
      p4 = blockData[blockBufferOffset + row + 4];
      p5 = blockData[blockBufferOffset + row + 5];
      p6 = blockData[blockBufferOffset + row + 6];
      p7 = blockData[blockBufferOffset + row + 7];
      p0 *= qt[row];
  
      if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) {
        t = dctSqrt2 * p0 + 512 >> 10;
        p[row] = t;
        p[row + 1] = t;
        p[row + 2] = t;
        p[row + 3] = t;
        p[row + 4] = t;
        p[row + 5] = t;
        p[row + 6] = t;
        p[row + 7] = t;
        continue;
      }
  
      p1 *= qt[row + 1];
      p2 *= qt[row + 2];
      p3 *= qt[row + 3];
      p4 *= qt[row + 4];
      p5 *= qt[row + 5];
      p6 *= qt[row + 6];
      p7 *= qt[row + 7];
      v0 = dctSqrt2 * p0 + 128 >> 8;
      v1 = dctSqrt2 * p4 + 128 >> 8;
      v2 = p2;
      v3 = p6;
      v4 = dctSqrt1d2 * (p1 - p7) + 128 >> 8;
      v7 = dctSqrt1d2 * (p1 + p7) + 128 >> 8;
      v5 = p3 << 4;
      v6 = p5 << 4;
      v0 = v0 + v1 + 1 >> 1;
      v1 = v0 - v1;
      t = v2 * dctSin6 + v3 * dctCos6 + 128 >> 8;
      v2 = v2 * dctCos6 - v3 * dctSin6 + 128 >> 8;
      v3 = t;
      v4 = v4 + v6 + 1 >> 1;
      v6 = v4 - v6;
      v7 = v7 + v5 + 1 >> 1;
      v5 = v7 - v5;
      v0 = v0 + v3 + 1 >> 1;
      v3 = v0 - v3;
      v1 = v1 + v2 + 1 >> 1;
      v2 = v1 - v2;
      t = v4 * dctSin3 + v7 * dctCos3 + 2048 >> 12;
      v4 = v4 * dctCos3 - v7 * dctSin3 + 2048 >> 12;
      v7 = t;
      t = v5 * dctSin1 + v6 * dctCos1 + 2048 >> 12;
      v5 = v5 * dctCos1 - v6 * dctSin1 + 2048 >> 12;
      v6 = t;
      p[row] = v0 + v7;
      p[row + 7] = v0 - v7;
      p[row + 1] = v1 + v6;
      p[row + 6] = v1 - v6;
      p[row + 2] = v2 + v5;
      p[row + 5] = v2 - v5;
      p[row + 3] = v3 + v4;
      p[row + 4] = v3 - v4;
    }
  
    for (let col = 0; col < 8; ++col) {
      p0 = p[col];
      p1 = p[col + 8];
      p2 = p[col + 16];
      p3 = p[col + 24];
      p4 = p[col + 32];
      p5 = p[col + 40];
      p6 = p[col + 48];
      p7 = p[col + 56];
  
      if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) {
        t = dctSqrt2 * p0 + 8192 >> 14;
  
        if (t < -2040) {
          t = 0;
        } else if (t >= 2024) {
          t = 255;
        } else {
          t = t + 2056 >> 4;
        }
  
        blockData[blockBufferOffset + col] = t;
        blockData[blockBufferOffset + col + 8] = t;
        blockData[blockBufferOffset + col + 16] = t;
        blockData[blockBufferOffset + col + 24] = t;
        blockData[blockBufferOffset + col + 32] = t;
        blockData[blockBufferOffset + col + 40] = t;
        blockData[blockBufferOffset + col + 48] = t;
        blockData[blockBufferOffset + col + 56] = t;
        continue;
      }
  
      v0 = dctSqrt2 * p0 + 2048 >> 12;
      v1 = dctSqrt2 * p4 + 2048 >> 12;
      v2 = p2;
      v3 = p6;
      v4 = dctSqrt1d2 * (p1 - p7) + 2048 >> 12;
      v7 = dctSqrt1d2 * (p1 + p7) + 2048 >> 12;
      v5 = p3;
      v6 = p5;
      v0 = (v0 + v1 + 1 >> 1) + 4112;
      v1 = v0 - v1;
      t = v2 * dctSin6 + v3 * dctCos6 + 2048 >> 12;
      v2 = v2 * dctCos6 - v3 * dctSin6 + 2048 >> 12;
      v3 = t;
      v4 = v4 + v6 + 1 >> 1;
      v6 = v4 - v6;
      v7 = v7 + v5 + 1 >> 1;
      v5 = v7 - v5;
      v0 = v0 + v3 + 1 >> 1;
      v3 = v0 - v3;
      v1 = v1 + v2 + 1 >> 1;
      v2 = v1 - v2;
      t = v4 * dctSin3 + v7 * dctCos3 + 2048 >> 12;
      v4 = v4 * dctCos3 - v7 * dctSin3 + 2048 >> 12;
      v7 = t;
      t = v5 * dctSin1 + v6 * dctCos1 + 2048 >> 12;
      v5 = v5 * dctCos1 - v6 * dctSin1 + 2048 >> 12;
      v6 = t;
      p0 = v0 + v7;
      p7 = v0 - v7;
      p1 = v1 + v6;
      p6 = v1 - v6;
      p2 = v2 + v5;
      p5 = v2 - v5;
      p3 = v3 + v4;
      p4 = v3 - v4;
  
      if (p0 < 16) {
        p0 = 0;
      } else if (p0 >= 4080) {
        p0 = 255;
      } else {
        p0 >>= 4;
      }
  
      if (p1 < 16) {
        p1 = 0;
      } else if (p1 >= 4080) {
        p1 = 255;
      } else {
        p1 >>= 4;
      }
  
      if (p2 < 16) {
        p2 = 0;
      } else if (p2 >= 4080) {
        p2 = 255;
      } else {
        p2 >>= 4;
      }
  
      if (p3 < 16) {
        p3 = 0;
      } else if (p3 >= 4080) {
        p3 = 255;
      } else {
        p3 >>= 4;
      }
  
      if (p4 < 16) {
        p4 = 0;
      } else if (p4 >= 4080) {
        p4 = 255;
      } else {
        p4 >>= 4;
      }
  
      if (p5 < 16) {
        p5 = 0;
      } else if (p5 >= 4080) {
        p5 = 255;
      } else {
        p5 >>= 4;
      }
  
      if (p6 < 16) {
        p6 = 0;
      } else if (p6 >= 4080) {
        p6 = 255;
      } else {
        p6 >>= 4;
      }
  
      if (p7 < 16) {
        p7 = 0;
      } else if (p7 >= 4080) {
        p7 = 255;
      } else {
        p7 >>= 4;
      }
  
      blockData[blockBufferOffset + col] = p0;
      blockData[blockBufferOffset + col + 8] = p1;
      blockData[blockBufferOffset + col + 16] = p2;
      blockData[blockBufferOffset + col + 24] = p3;
      blockData[blockBufferOffset + col + 32] = p4;
      blockData[blockBufferOffset + col + 40] = p5;
      blockData[blockBufferOffset + col + 48] = p6;
      blockData[blockBufferOffset + col + 56] = p7;
    }
  }
  
  function buildComponentData(frame, component) {
    const blocksPerLine = component.blocksPerLine;
    const blocksPerColumn = component.blocksPerColumn;
    const computationBuffer = new Int16Array(64);
  
    for (let blockRow = 0; blockRow < blocksPerColumn; blockRow++) {
      for (let blockCol = 0; blockCol < blocksPerLine; blockCol++) {
        const offset = getBlockBufferOffset(component, blockRow, blockCol);
        quantizeAndInverse(component, offset, computationBuffer);
      }
    }
  
    return component.blockData;
  }
  
  function findNextFileMarker(data, currentPos, startPos = currentPos) {
    const maxPos = data.length - 1;
    let newPos = startPos < currentPos ? startPos : currentPos;
  
    if (currentPos >= maxPos) {
      return null;
    }
  
    const currentMarker = (0, _core_utils.readUint16)(data, currentPos);
  
    if (currentMarker >= 0xffc0 && currentMarker <= 0xfffe) {
      return {
        invalid: null,
        marker: currentMarker,
        offset: currentPos
      };
    }
  
    let newMarker = (0, _core_utils.readUint16)(data, newPos);
  
    while (!(newMarker >= 0xffc0 && newMarker <= 0xfffe)) {
      if (++newPos >= maxPos) {
        return null;
      }
  
      newMarker = (0, _core_utils.readUint16)(data, newPos);
    }
  
    return {
      invalid: currentMarker.toString(16),
      marker: newMarker,
      offset: newPos
    };
  }
  
  class JpegImage {
    constructor({
      decodeTransform = null,
      colorTransform = -1
    } = {}) {
      this._decodeTransform = decodeTransform;
      this._colorTransform = colorTransform;
    }
  
    parse(data, {
      dnlScanLines = null
    } = {}) {
      function readDataBlock() {
        const length = (0, _core_utils.readUint16)(data, offset);
        offset += 2;
        let endOffset = offset + length - 2;
        const fileMarker = findNextFileMarker(data, endOffset, offset);
  
        if (fileMarker && fileMarker.invalid) {
          (0, _util.warn)("readDataBlock - incorrect length, current marker is: " + fileMarker.invalid);
          endOffset = fileMarker.offset;
        }
  
        const array = data.subarray(offset, endOffset);
        offset += array.length;
        return array;
      }
  
      function prepareComponents(frame) {
        const mcusPerLine = Math.ceil(frame.samplesPerLine / 8 / frame.maxH);
        const mcusPerColumn = Math.ceil(frame.scanLines / 8 / frame.maxV);
  
        for (let i = 0, ii = frame.components.length; i < ii; i++) {
          const component = frame.components[i];
          const blocksPerLine = Math.ceil(Math.ceil(frame.samplesPerLine / 8) * component.h / frame.maxH);
          const blocksPerColumn = Math.ceil(Math.ceil(frame.scanLines / 8) * component.v / frame.maxV);
          const blocksPerLineForMcu = mcusPerLine * component.h;
          const blocksPerColumnForMcu = mcusPerColumn * component.v;
          const blocksBufferSize = 64 * blocksPerColumnForMcu * (blocksPerLineForMcu + 1);
          component.blockData = new Int16Array(blocksBufferSize);
          component.blocksPerLine = blocksPerLine;
          component.blocksPerColumn = blocksPerColumn;
        }
  
        frame.mcusPerLine = mcusPerLine;
        frame.mcusPerColumn = mcusPerColumn;
      }
  
      let offset = 0;
      let jfif = null;
      let adobe = null;
      let frame, resetInterval;
      let numSOSMarkers = 0;
      const quantizationTables = [];
      const huffmanTablesAC = [],
            huffmanTablesDC = [];
      let fileMarker = (0, _core_utils.readUint16)(data, offset);
      offset += 2;
  
      if (fileMarker !== 0xffd8) {
        throw new JpegError("SOI not found");
      }
  
      fileMarker = (0, _core_utils.readUint16)(data, offset);
      offset += 2;
  
      markerLoop: while (fileMarker !== 0xffd9) {
        let i, j, l;
  
        switch (fileMarker) {
          case 0xffe0:
          case 0xffe1:
          case 0xffe2:
          case 0xffe3:
          case 0xffe4:
          case 0xffe5:
          case 0xffe6:
          case 0xffe7:
          case 0xffe8:
          case 0xffe9:
          case 0xffea:
          case 0xffeb:
          case 0xffec:
          case 0xffed:
          case 0xffee:
          case 0xffef:
          case 0xfffe:
            const appData = readDataBlock();
  
            if (fileMarker === 0xffe0) {
              if (appData[0] === 0x4a && appData[1] === 0x46 && appData[2] === 0x49 && appData[3] === 0x46 && appData[4] === 0) {
                jfif = {
                  version: {
                    major: appData[5],
                    minor: appData[6]
                  },
                  densityUnits: appData[7],
                  xDensity: appData[8] << 8 | appData[9],
                  yDensity: appData[10] << 8 | appData[11],
                  thumbWidth: appData[12],
                  thumbHeight: appData[13],
                  thumbData: appData.subarray(14, 14 + 3 * appData[12] * appData[13])
                };
              }
            }
  
            if (fileMarker === 0xffee) {
              if (appData[0] === 0x41 && appData[1] === 0x64 && appData[2] === 0x6f && appData[3] === 0x62 && appData[4] === 0x65) {
                adobe = {
                  version: appData[5] << 8 | appData[6],
                  flags0: appData[7] << 8 | appData[8],
                  flags1: appData[9] << 8 | appData[10],
                  transformCode: appData[11]
                };
              }
            }
  
            break;
  
          case 0xffdb:
            const quantizationTablesLength = (0, _core_utils.readUint16)(data, offset);
            offset += 2;
            const quantizationTablesEnd = quantizationTablesLength + offset - 2;
            let z;
  
            while (offset < quantizationTablesEnd) {
              const quantizationTableSpec = data[offset++];
              const tableData = new Uint16Array(64);
  
              if (quantizationTableSpec >> 4 === 0) {
                for (j = 0; j < 64; j++) {
                  z = dctZigZag[j];
                  tableData[z] = data[offset++];
                }
              } else if (quantizationTableSpec >> 4 === 1) {
                for (j = 0; j < 64; j++) {
                  z = dctZigZag[j];
                  tableData[z] = (0, _core_utils.readUint16)(data, offset);
                  offset += 2;
                }
              } else {
                throw new JpegError("DQT - invalid table spec");
              }
  
              quantizationTables[quantizationTableSpec & 15] = tableData;
            }
  
            break;
  
          case 0xffc0:
          case 0xffc1:
          case 0xffc2:
            if (frame) {
              throw new JpegError("Only single frame JPEGs supported");
            }
  
            offset += 2;
            frame = {};
            frame.extended = fileMarker === 0xffc1;
            frame.progressive = fileMarker === 0xffc2;
            frame.precision = data[offset++];
            const sofScanLines = (0, _core_utils.readUint16)(data, offset);
            offset += 2;
            frame.scanLines = dnlScanLines || sofScanLines;
            frame.samplesPerLine = (0, _core_utils.readUint16)(data, offset);
            offset += 2;
            frame.components = [];
            frame.componentIds = {};
            const componentsCount = data[offset++];
            let maxH = 0,
                maxV = 0;
  
            for (i = 0; i < componentsCount; i++) {
              const componentId = data[offset];
              const h = data[offset + 1] >> 4;
              const v = data[offset + 1] & 15;
  
              if (maxH < h) {
                maxH = h;
              }
  
              if (maxV < v) {
                maxV = v;
              }
  
              const qId = data[offset + 2];
              l = frame.components.push({
                h,
                v,
                quantizationId: qId,
                quantizationTable: null
              });
              frame.componentIds[componentId] = l - 1;
              offset += 3;
            }
  
            frame.maxH = maxH;
            frame.maxV = maxV;
            prepareComponents(frame);
            break;
  
          case 0xffc4:
            const huffmanLength = (0, _core_utils.readUint16)(data, offset);
            offset += 2;
  
            for (i = 2; i < huffmanLength;) {
              const huffmanTableSpec = data[offset++];
              const codeLengths = new Uint8Array(16);
              let codeLengthSum = 0;
  
              for (j = 0; j < 16; j++, offset++) {
                codeLengthSum += codeLengths[j] = data[offset];
              }
  
              const huffmanValues = new Uint8Array(codeLengthSum);
  
              for (j = 0; j < codeLengthSum; j++, offset++) {
                huffmanValues[j] = data[offset];
              }
  
              i += 17 + codeLengthSum;
              (huffmanTableSpec >> 4 === 0 ? huffmanTablesDC : huffmanTablesAC)[huffmanTableSpec & 15] = buildHuffmanTable(codeLengths, huffmanValues);
            }
  
            break;
  
          case 0xffdd:
            offset += 2;
            resetInterval = (0, _core_utils.readUint16)(data, offset);
            offset += 2;
            break;
  
          case 0xffda:
            const parseDNLMarker = ++numSOSMarkers === 1 && !dnlScanLines;
            offset += 2;
            const selectorsCount = data[offset++],
                  components = [];
  
            for (i = 0; i < selectorsCount; i++) {
              const index = data[offset++];
              const componentIndex = frame.componentIds[index];
              const component = frame.components[componentIndex];
              component.index = index;
              const tableSpec = data[offset++];
              component.huffmanTableDC = huffmanTablesDC[tableSpec >> 4];
              component.huffmanTableAC = huffmanTablesAC[tableSpec & 15];
              components.push(component);
            }
  
            const spectralStart = data[offset++],
                  spectralEnd = data[offset++],
                  successiveApproximation = data[offset++];
  
            try {
              const processed = decodeScan(data, offset, frame, components, resetInterval, spectralStart, spectralEnd, successiveApproximation >> 4, successiveApproximation & 15, parseDNLMarker);
              offset += processed;
            } catch (ex) {
              if (ex instanceof DNLMarkerError) {
                (0, _util.warn)(`${ex.message} -- attempting to re-parse the JPEG image.`);
                return this.parse(data, {
                  dnlScanLines: ex.scanLines
                });
              } else if (ex instanceof EOIMarkerError) {
                (0, _util.warn)(`${ex.message} -- ignoring the rest of the image data.`);
                break markerLoop;
              }
  
              throw ex;
            }
  
            break;
  
          case 0xffdc:
            offset += 4;
            break;
  
          case 0xffff:
            if (data[offset] !== 0xff) {
              offset--;
            }
  
            break;
  
          default:
            const nextFileMarker = findNextFileMarker(data, offset - 2, offset - 3);
  
            if (nextFileMarker && nextFileMarker.invalid) {
              (0, _util.warn)("JpegImage.parse - unexpected data, current marker is: " + nextFileMarker.invalid);
              offset = nextFileMarker.offset;
              break;
            }
  
            if (!nextFileMarker || offset >= data.length - 1) {
              (0, _util.warn)("JpegImage.parse - reached the end of the image data " + "without finding an EOI marker (0xFFD9).");
              break markerLoop;
            }
  
            throw new JpegError("JpegImage.parse - unknown marker: " + fileMarker.toString(16));
        }
  
        fileMarker = (0, _core_utils.readUint16)(data, offset);
        offset += 2;
      }
  
      this.width = frame.samplesPerLine;
      this.height = frame.scanLines;
      this.jfif = jfif;
      this.adobe = adobe;
      this.components = [];
  
      for (let i = 0, ii = frame.components.length; i < ii; i++) {
        const component = frame.components[i];
        const quantizationTable = quantizationTables[component.quantizationId];
  
        if (quantizationTable) {
          component.quantizationTable = quantizationTable;
        }
  
        this.components.push({
          index: component.index,
          output: buildComponentData(frame, component),
          scaleX: component.h / frame.maxH,
          scaleY: component.v / frame.maxV,
          blocksPerLine: component.blocksPerLine,
          blocksPerColumn: component.blocksPerColumn
        });
      }
  
      this.numComponents = this.components.length;
      return undefined;
    }
  
    _getLinearizedBlockData(width, height, isSourcePDF = false) {
      const scaleX = this.width / width,
            scaleY = this.height / height;
      let component, componentScaleX, componentScaleY, blocksPerScanline;
      let x, y, i, j, k;
      let index;
      let offset = 0;
      let output;
      const numComponents = this.components.length;
      const dataLength = width * height * numComponents;
      const data = new Uint8ClampedArray(dataLength);
      const xScaleBlockOffset = new Uint32Array(width);
      const mask3LSB = 0xfffffff8;
      let lastComponentScaleX;
  
      for (i = 0; i < numComponents; i++) {
        component = this.components[i];
        componentScaleX = component.scaleX * scaleX;
        componentScaleY = component.scaleY * scaleY;
        offset = i;
        output = component.output;
        blocksPerScanline = component.blocksPerLine + 1 << 3;
  
        if (componentScaleX !== lastComponentScaleX) {
          for (x = 0; x < width; x++) {
            j = 0 | x * componentScaleX;
            xScaleBlockOffset[x] = (j & mask3LSB) << 3 | j & 7;
          }
  
          lastComponentScaleX = componentScaleX;
        }
  
        for (y = 0; y < height; y++) {
          j = 0 | y * componentScaleY;
          index = blocksPerScanline * (j & mask3LSB) | (j & 7) << 3;
  
          for (x = 0; x < width; x++) {
            data[offset] = output[index + xScaleBlockOffset[x]];
            offset += numComponents;
          }
        }
      }
  
      let transform = this._decodeTransform;
  
      if (!isSourcePDF && numComponents === 4 && !transform) {
        transform = new Int32Array([-256, 255, -256, 255, -256, 255, -256, 255]);
      }
  
      if (transform) {
        for (i = 0; i < dataLength;) {
          for (j = 0, k = 0; j < numComponents; j++, i++, k += 2) {
            data[i] = (data[i] * transform[k] >> 8) + transform[k + 1];
          }
        }
      }
  
      return data;
    }
  
    get _isColorConversionNeeded() {
      if (this.adobe) {
        return !!this.adobe.transformCode;
      }
  
      if (this.numComponents === 3) {
        if (this._colorTransform === 0) {
          return false;
        } else if (this.components[0].index === 0x52 && this.components[1].index === 0x47 && this.components[2].index === 0x42) {
          return false;
        }
  
        return true;
      }
  
      if (this._colorTransform === 1) {
        return true;
      }
  
      return false;
    }
  
    _convertYccToRgb(data) {
      let Y, Cb, Cr;
  
      for (let i = 0, length = data.length; i < length; i += 3) {
        Y = data[i];
        Cb = data[i + 1];
        Cr = data[i + 2];
        data[i] = Y - 179.456 + 1.402 * Cr;
        data[i + 1] = Y + 135.459 - 0.344 * Cb - 0.714 * Cr;
        data[i + 2] = Y - 226.816 + 1.772 * Cb;
      }
  
      return data;
    }
  
    _convertYcckToRgb(data) {
      let Y, Cb, Cr, k;
      let offset = 0;
  
      for (let i = 0, length = data.length; i < length; i += 4) {
        Y = data[i];
        Cb = data[i + 1];
        Cr = data[i + 2];
        k = data[i + 3];
        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);
        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);
        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);
      }
  
      return data.subarray(0, offset);
    }
  
    _convertYcckToCmyk(data) {
      let Y, Cb, Cr;
  
      for (let i = 0, length = data.length; i < length; i += 4) {
        Y = data[i];
        Cb = data[i + 1];
        Cr = data[i + 2];
        data[i] = 434.456 - Y - 1.402 * Cr;
        data[i + 1] = 119.541 - Y + 0.344 * Cb + 0.714 * Cr;
        data[i + 2] = 481.816 - Y - 1.772 * Cb;
      }
  
      return data;
    }
  
    _convertCmykToRgb(data) {
      let c, m, y, k;
      let offset = 0;
  
      for (let i = 0, length = data.length; i < length; i += 4) {
        c = data[i];
        m = data[i + 1];
        y = data[i + 2];
        k = data[i + 3];
        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);
        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);
        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);
      }
  
      return data.subarray(0, offset);
    }
  
    getData({
      width,
      height,
      forceRGB = false,
      isSourcePDF = false
    }) {
      if (this.numComponents > 4) {
        throw new JpegError("Unsupported color mode");
      }
  
      const data = this._getLinearizedBlockData(width, height, isSourcePDF);
  
      if (this.numComponents === 1 && forceRGB) {
        const dataLength = data.length;
        const rgbData = new Uint8ClampedArray(dataLength * 3);
        let offset = 0;
  
        for (let i = 0; i < dataLength; i++) {
          const grayColor = data[i];
          rgbData[offset++] = grayColor;
          rgbData[offset++] = grayColor;
          rgbData[offset++] = grayColor;
        }
  
        return rgbData;
      } else if (this.numComponents === 3 && this._isColorConversionNeeded) {
        return this._convertYccToRgb(data);
      } else if (this.numComponents === 4) {
        if (this._isColorConversionNeeded) {
          if (forceRGB) {
            return this._convertYcckToRgb(data);
          }
  
          return this._convertYcckToCmyk(data);
        } else if (forceRGB) {
          return this._convertCmykToRgb(data);
        }
      }
  
      return data;
    }
  
  }
  
  exports.JpegImage = JpegImage;
  
  /***/ }),
  /* 11 */
  /***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {
  
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  exports.JpxImage = void 0;
  
  var _util = __w_pdfjs_require__(1);
  
  var _core_utils = __w_pdfjs_require__(5);
  
  var _arithmetic_decoder = __w_pdfjs_require__(8);
  
  class JpxError extends _util.BaseException {
    constructor(msg) {
      super(`JPX error: ${msg}`, "JpxError");
    }
  
  }
  
  const SubbandsGainLog2 = {
    LL: 0,
    LH: 1,
    HL: 1,
    HH: 2
  };
  
  class JpxImage {
    constructor() {
      this.failOnCorruptedImage = false;
    }
  
    parse(data) {
      const head = (0, _core_utils.readUint16)(data, 0);
  
      if (head === 0xff4f) {
        this.parseCodestream(data, 0, data.length);
        return;
      }
  
      const length = data.length;
      let position = 0;
  
      while (position < length) {
        let headerSize = 8;
        let lbox = (0, _core_utils.readUint32)(data, position);
        const tbox = (0, _core_utils.readUint32)(data, position + 4);
        position += headerSize;
  
        if (lbox === 1) {
          lbox = (0, _core_utils.readUint32)(data, position) * 4294967296 + (0, _core_utils.readUint32)(data, position + 4);
          position += 8;
          headerSize += 8;
        }
  
        if (lbox === 0) {
          lbox = length - position + headerSize;
        }
  
        if (lbox < headerSize) {
          throw new JpxError("Invalid box field size");
        }
  
        const dataLength = lbox - headerSize;
        let jumpDataLength = true;
  
        switch (tbox) {
          case 0x6a703268:
            jumpDataLength = false;
            break;
  
          case 0x636f6c72:
            const method = data[position];
  
            if (method === 1) {
              const colorspace = (0, _core_utils.readUint32)(data, position + 3);
  
              switch (colorspace) {
                case 16:
                case 17:
                case 18:
                  break;
  
                default:
                  (0, _util.warn)("Unknown colorspace " + colorspace);
                  break;
              }
            } else if (method === 2) {
              (0, _util.info)("ICC profile not supported");
            }
  
            break;
  
          case 0x6a703263:
            this.parseCodestream(data, position, position + dataLength);
            break;
  
          case 0x6a502020:
            if ((0, _core_utils.readUint32)(data, position) !== 0x0d0a870a) {
              (0, _util.warn)("Invalid JP2 signature");
            }
  
            break;
  
          case 0x6a501a1a:
          case 0x66747970:
          case 0x72726571:
          case 0x72657320:
          case 0x69686472:
            break;
  
          default:
            const headerType = String.fromCharCode(tbox >> 24 & 0xff, tbox >> 16 & 0xff, tbox >> 8 & 0xff, tbox & 0xff);
            (0, _util.warn)(`Unsupported header type ${tbox} (${headerType}).`);
            break;
        }
  
        if (jumpDataLength) {
          position += dataLength;
        }
      }
    }
  
    parseImageProperties(stream) {
      let newByte = stream.getByte();
  
      while (newByte >= 0) {
        const oldByte = newByte;
        newByte = stream.getByte();
        const code = oldByte << 8 | newByte;
  
        if (code === 0xff51) {
          stream.skip(4);
          const Xsiz = stream.getInt32() >>> 0;
          const Ysiz = stream.getInt32() >>> 0;
          const XOsiz = stream.getInt32() >>> 0;
          const YOsiz = stream.getInt32() >>> 0;
          stream.skip(16);
          const Csiz = stream.getUint16();
          this.width = Xsiz - XOsiz;
          this.height = Ysiz - YOsiz;
          this.componentsCount = Csiz;
          this.bitsPerComponent = 8;
          return;
        }
      }
  
      throw new JpxError("No size marker found in JPX stream");
    }
  
    parseCodestream(data, start, end) {
      const context = {};
      let doNotRecover = false;
  
      try {
        let position = start;
  
        while (position + 1 < end) {
          const code = (0, _core_utils.readUint16)(data, position);
          position += 2;
          let length = 0,
              j,
              sqcd,
              spqcds,
              spqcdSize,
              scalarExpounded,
              tile;
  
          switch (code) {
            case 0xff4f:
              context.mainHeader = true;
              break;
  
            case 0xffd9:
              break;
  
            case 0xff51:
              length = (0, _core_utils.readUint16)(data, position);
              const siz = {};
              siz.Xsiz = (0, _core_utils.readUint32)(data, position + 4);
              siz.Ysiz = (0, _core_utils.readUint32)(data, position + 8);
              siz.XOsiz = (0, _core_utils.readUint32)(data, position + 12);
              siz.YOsiz = (0, _core_utils.readUint32)(data, position + 16);
              siz.XTsiz = (0, _core_utils.readUint32)(data, position + 20);
              siz.YTsiz = (0, _core_utils.readUint32)(data, position + 24);
              siz.XTOsiz = (0, _core_utils.readUint32)(data, position + 28);
              siz.YTOsiz = (0, _core_utils.readUint32)(data, position + 32);
              const componentsCount = (0, _core_utils.readUint16)(data, position + 36);
              siz.Csiz = componentsCount;
              const components = [];
              j = position + 38;
  
              for (let i = 0; i < componentsCount; i++) {
                const component = {
                  precision: (data[j] & 0x7f) + 1,
                  isSigned: !!(data[j] & 0x80),
                  XRsiz: data[j + 1],
                  YRsiz: data[j + 2]
                };
                j += 3;
                calculateComponentDimensions(component, siz);
                components.push(component);
              }
  
              context.SIZ = siz;
              context.components = components;
              calculateTileGrids(context, components);
              context.QCC = [];
              context.COC = [];
              break;
  
            case 0xff5c:
              length = (0, _core_utils.readUint16)(data, position);
              const qcd = {};
              j = position + 2;
              sqcd = data[j++];
  
              switch (sqcd & 0x1f) {
                case 0:
                  spqcdSize = 8;
                  scalarExpounded = true;
                  break;
  
                case 1:
                  spqcdSize = 16;
                  scalarExpounded = false;
                  break;
  
                case 2:
                  spqcdSize = 16;
                  scalarExpounded = true;
                  break;
  
                default:
                  throw new Error("Invalid SQcd value " + sqcd);
              }
  
              qcd.noQuantization = spqcdSize === 8;
              qcd.scalarExpounded = scalarExpounded;
              qcd.guardBits = sqcd >> 5;
              spqcds = [];
  
              while (j < length + position) {
                const spqcd = {};
  
                if (spqcdSize === 8) {
                  spqcd.epsilon = data[j++] >> 3;
                  spqcd.mu = 0;
                } else {
                  spqcd.epsilon = data[j] >> 3;
                  spqcd.mu = (data[j] & 0x7) << 8 | data[j + 1];
                  j += 2;
                }
  
                spqcds.push(spqcd);
              }
  
              qcd.SPqcds = spqcds;
  
              if (context.mainHeader) {
                context.QCD = qcd;
              } else {
                context.currentTile.QCD = qcd;
                context.currentTile.QCC = [];
              }
  
              break;
  
            case 0xff5d:
              length = (0, _core_utils.readUint16)(data, position);
              const qcc = {};
              j = position + 2;
              let cqcc;
  
              if (context.SIZ.Csiz < 257) {
                cqcc = data[j++];
              } else {
                cqcc = (0, _core_utils.readUint16)(data, j);
                j += 2;
              }
  
              sqcd = data[j++];
  
              switch (sqcd & 0x1f) {
                case 0:
                  spqcdSize = 8;
                  scalarExpounded = true;
                  break;
  
                case 1:
                  spqcdSize = 16;
                  scalarExpounded = false;
                  break;
  
                case 2:
                  spqcdSize = 16;
                  scalarExpounded = true;
                  break;
  
                default:
                  throw new Error("Invalid SQcd value " + sqcd);
              }
  
              qcc.noQuantization = spqcdSize === 8;
              qcc.scalarExpounded = scalarExpounded;
              qcc.guardBits = sqcd >> 5;
              spqcds = [];
  
              while (j < length + position) {
                const spqcd = {};
  
                if (spqcdSize === 8) {
                  spqcd.epsilon = data[j++] >> 3;
                  spqcd.mu = 0;
                } else {
                  spqcd.epsilon = data[j] >> 3;
                  spqcd.mu = (data[j] & 0x7) << 8 | data[j + 1];
                  j += 2;
                }
  
                spqcds.push(spqcd);
              }
  
              qcc.SPqcds = spqcds;
  
              if (context.mainHeader) {
                context.QCC[cqcc] = qcc;
              } else {
                context.currentTile.QCC[cqcc] = qcc;
              }
  
              break;
  
            case 0xff52:
              length = (0, _core_utils.readUint16)(data, position);
              const cod = {};
              j = position + 2;
              const scod = data[j++];
              cod.entropyCoderWithCustomPrecincts = !!(scod & 1);
              cod.sopMarkerUsed = !!(scod & 2);
              cod.ephMarkerUsed = !!(scod & 4);
              cod.progressionOrder = data[j++];
              cod.layersCount = (0, _core_utils.readUint16)(data, j);
              j += 2;
              cod.multipleComponentTransform = data[j++];
              cod.decompositionLevelsCount = data[j++];
              cod.xcb = (data[j++] & 0xf) + 2;
              cod.ycb = (data[j++] & 0xf) + 2;
              const blockStyle = data[j++];
              cod.selectiveArithmeticCodingBypass = !!(blockStyle & 1);
              cod.resetContextProbabilities = !!(blockStyle & 2);
              cod.terminationOnEachCodingPass = !!(blockStyle & 4);
              cod.verticallyStripe = !!(blockStyle & 8);
              cod.predictableTermination = !!(blockStyle & 16);
              cod.segmentationSymbolUsed = !!(blockStyle & 32);
              cod.reversibleTransformation = data[j++];
  
              if (cod.entropyCoderWithCustomPrecincts) {
                const precinctsSizes = [];
  
                while (j < length + position) {
                  const precinctsSize = data[j++];
                  precinctsSizes.push({
                    PPx: precinctsSize & 0xf,
                    PPy: precinctsSize >> 4
                  });
                }
  
                cod.precinctsSizes = precinctsSizes;
              }
  
              const unsupported = [];
  
              if (cod.selectiveArithmeticCodingBypass) {
                unsupported.push("selectiveArithmeticCodingBypass");
              }
  
              if (cod.resetContextProbabilities) {
                unsupported.push("resetContextProbabilities");
              }
  
              if (cod.terminationOnEachCodingPass) {
                unsupported.push("terminationOnEachCodingPass");
              }
  
              if (cod.verticallyStripe) {
                unsupported.push("verticallyStripe");
              }
  
              if (cod.predictableTermination) {
                unsupported.push("predictableTermination");
              }
  
              if (unsupported.length > 0) {
                doNotRecover = true;
                (0, _util.warn)(`JPX: Unsupported COD options (${unsupported.join(", ")}).`);
              }
  
              if (context.mainHeader) {
                context.COD = cod;
              } else {
                context.currentTile.COD = cod;
                context.currentTile.COC = [];
              }
  
              break;
  
            case 0xff90:
              length = (0, _core_utils.readUint16)(data, position);
              tile = {};
              tile.index = (0, _core_utils.readUint16)(data, position + 2);
              tile.length = (0, _core_utils.readUint32)(data, position + 4);
              tile.dataEnd = tile.length + position - 2;
              tile.partIndex = data[position + 8];
              tile.partsCount = data[position + 9];
              context.mainHeader = false;
  
              if (tile.partIndex === 0) {
                tile.COD = context.COD;
                tile.COC = context.COC.slice(0);
                tile.QCD = context.QCD;
                tile.QCC = context.QCC.slice(0);
              }
  
              context.currentTile = tile;
              break;
  
            case 0xff93:
              tile = context.currentTile;
  
              if (tile.partIndex === 0) {
                initializeTile(context, tile.index);
                buildPackets(context);
              }
  
              length = tile.dataEnd - position;
              parseTilePackets(context, data, position, length);
              break;
  
            case 0xff53:
              (0, _util.warn)("JPX: Codestream code 0xFF53 (COC) is not implemented.");
  
            case 0xff55:
            case 0xff57:
            case 0xff58:
            case 0xff64:
              length = (0, _core_utils.readUint16)(data, position);
              break;
  
            default:
              throw new Error("Unknown codestream code: " + code.toString(16));
          }
  
          position += length;
        }
      } catch (e) {
        if (doNotRecover || this.failOnCorruptedImage) {
          throw new JpxError(e.message);
        } else {
          (0, _util.warn)(`JPX: Trying to recover from: "${e.message}".`);
        }
      }
  
      this.tiles = transformComponents(context);
      this.width = context.SIZ.Xsiz - context.SIZ.XOsiz;
      this.height = context.SIZ.Ysiz - context.SIZ.YOsiz;
      this.componentsCount = context.SIZ.Csiz;
    }
  
  }
  
  exports.JpxImage = JpxImage;
  
  function calculateComponentDimensions(component, siz) {
    component.x0 = Math.ceil(siz.XOsiz / component.XRsiz);
    component.x1 = Math.ceil(siz.Xsiz / component.XRsiz);
    component.y0 = Math.ceil(siz.YOsiz / component.YRsiz);
    component.y1 = Math.ceil(siz.Ysiz / component.YRsiz);
    component.width = component.x1 - component.x0;
    component.height = component.y1 - component.y0;
  }
  
  function calculateTileGrids(context, components) {
    const siz = context.SIZ;
    const tiles = [];
    let tile;
    const numXtiles = Math.ceil((siz.Xsiz - siz.XTOsiz) / siz.XTsiz);
    const numYtiles = Math.ceil((siz.Ysiz - siz.YTOsiz) / siz.YTsiz);
  
    for (let q = 0; q < numYtiles; q++) {
      for (let p = 0; p < numXtiles; p++) {
        tile = {};
        tile.tx0 = Math.max(siz.XTOsiz + p * siz.XTsiz, siz.XOsiz);
        tile.ty0 = Math.max(siz.YTOsiz + q * siz.YTsiz, siz.YOsiz);
        tile.tx1 = Math.min(siz.XTOsiz + (p + 1) * siz.XTsiz, siz.Xsiz);
        tile.ty1 = Math.min(siz.YTOsiz + (q + 1) * siz.YTsiz, siz.Ysiz);
        tile.width = tile.tx1 - tile.tx0;
        tile.height = tile.ty1 - tile.ty0;
        tile.components = [];
        tiles.push(tile);
      }
    }
  
    context.tiles = tiles;
    const componentsCount = siz.Csiz;
  
    for (let i = 0, ii = componentsCount; i < ii; i++) {
      const component = components[i];
  
      for (let j = 0, jj = tiles.length; j < jj; j++) {
        const tileComponent = {};
        tile = tiles[j];
        tileComponent.tcx0 = Math.ceil(tile.tx0 / component.XRsiz);
        tileComponent.tcy0 = Math.ceil(tile.ty0 / component.YRsiz);
        tileComponent.tcx1 = Math.ceil(tile.tx1 / component.XRsiz);
        tileComponent.tcy1 = Math.ceil(tile.ty1 / component.YRsiz);
        tileComponent.width = tileComponent.tcx1 - tileComponent.tcx0;
        tileComponent.height = tileComponent.tcy1 - tileComponent.tcy0;
        tile.components[i] = tileComponent;
      }
    }
  }
  
  function getBlocksDimensions(context, component, r) {
    const codOrCoc = component.codingStyleParameters;
    const result = {};
  
    if (!codOrCoc.entropyCoderWithCustomPrecincts) {
      result.PPx = 15;
      result.PPy = 15;
    } else {
      result.PPx = codOrCoc.precinctsSizes[r].PPx;
      result.PPy = codOrCoc.precinctsSizes[r].PPy;
    }
  
    result.xcb_ = r > 0 ? Math.min(codOrCoc.xcb, result.PPx - 1) : Math.min(codOrCoc.xcb, result.PPx);
    result.ycb_ = r > 0 ? Math.min(codOrCoc.ycb, result.PPy - 1) : Math.min(codOrCoc.ycb, result.PPy);
    return result;
  }
  
  function buildPrecincts(context, resolution, dimensions) {
    const precinctWidth = 1 << dimensions.PPx;
    const precinctHeight = 1 << dimensions.PPy;
    const isZeroRes = resolution.resLevel === 0;
    const precinctWidthInSubband = 1 << dimensions.PPx + (isZeroRes ? 0 : -1);
    const precinctHeightInSubband = 1 << dimensions.PPy + (isZeroRes ? 0 : -1);
    const numprecinctswide = resolution.trx1 > resolution.trx0 ? Math.ceil(resolution.trx1 / precinctWidth) - Math.floor(resolution.trx0 / precinctWidth) : 0;
    const numprecinctshigh = resolution.try1 > resolution.try0 ? Math.ceil(resolution.try1 / precinctHeight) - Math.floor(resolution.try0 / precinctHeight) : 0;
    const numprecincts = numprecinctswide * numprecinctshigh;
    resolution.precinctParameters = {
      precinctWidth,
      precinctHeight,
      numprecinctswide,
      numprecinctshigh,
      numprecincts,
      precinctWidthInSubband,
      precinctHeightInSubband
    };
  }
  
  function buildCodeblocks(context, subband, dimensions) {
    const xcb_ = dimensions.xcb_;
    const ycb_ = dimensions.ycb_;
    const codeblockWidth = 1 << xcb_;
    const codeblockHeight = 1 << ycb_;
    const cbx0 = subband.tbx0 >> xcb_;
    const cby0 = subband.tby0 >> ycb_;
    const cbx1 = subband.tbx1 + codeblockWidth - 1 >> xcb_;
    const cby1 = subband.tby1 + codeblockHeight - 1 >> ycb_;
    const precinctParameters = subband.resolution.precinctParameters;
    const codeblocks = [];
    const precincts = [];
    let i, j, codeblock, precinctNumber;
  
    for (j = cby0; j < cby1; j++) {
      for (i = cbx0; i < cbx1; i++) {
        codeblock = {
          cbx: i,
          cby: j,
          tbx0: codeblockWidth * i,
          tby0: codeblockHeight * j,
          tbx1: codeblockWidth * (i + 1),
          tby1: codeblockHeight * (j + 1)
        };
        codeblock.tbx0_ = Math.max(subband.tbx0, codeblock.tbx0);
        codeblock.tby0_ = Math.max(subband.tby0, codeblock.tby0);
        codeblock.tbx1_ = Math.min(subband.tbx1, codeblock.tbx1);
        codeblock.tby1_ = Math.min(subband.tby1, codeblock.tby1);
        const pi = Math.floor((codeblock.tbx0_ - subband.tbx0) / precinctParameters.precinctWidthInSubband);
        const pj = Math.floor((codeblock.tby0_ - subband.tby0) / precinctParameters.precinctHeightInSubband);
        precinctNumber = pi + pj * precinctParameters.numprecinctswide;
        codeblock.precinctNumber = precinctNumber;
        codeblock.subbandType = subband.type;
        codeblock.Lblock = 3;
  
        if (codeblock.tbx1_ <= codeblock.tbx0_ || codeblock.tby1_ <= codeblock.tby0_) {
          continue;
        }
  
        codeblocks.push(codeblock);
        let precinct = precincts[precinctNumber];
  
        if (precinct !== undefined) {
          if (i < precinct.cbxMin) {
            precinct.cbxMin = i;
          } else if (i > precinct.cbxMax) {
            precinct.cbxMax = i;
          }
  
          if (j < precinct.cbyMin) {
            precinct.cbxMin = j;
          } else if (j > precinct.cbyMax) {
            precinct.cbyMax = j;
          }
        } else {
          precincts[precinctNumber] = precinct = {
            cbxMin: i,
            cbyMin: j,
            cbxMax: i,
            cbyMax: j
          };
        }
  
        codeblock.precinct = precinct;
      }
    }
  
    subband.codeblockParameters = {
      codeblockWidth: xcb_,
      codeblockHeight: ycb_,
      numcodeblockwide: cbx1 - cbx0 + 1,
      numcodeblockhigh: cby1 - cby0 + 1
    };
    subband.codeblocks = codeblocks;
    subband.precincts = precincts;
  }
  
  function createPacket(resolution, precinctNumber, layerNumber) {
    const precinctCodeblocks = [];
    const subbands = resolution.subbands;
  
    for (let i = 0, ii = subbands.length; i < ii; i++) {
      const subband = subbands[i];
      const codeblocks = subband.codeblocks;
  
      for (let j = 0, jj = codeblocks.length; j < jj; j++) {
        const codeblock = codeblocks[j];
  
        if (codeblock.precinctNumber !== precinctNumber) {
          continue;
        }
  
        precinctCodeblocks.push(codeblock);
      }
    }
  
    return {
      layerNumber,
      codeblocks: precinctCodeblocks
    };
  }
  
  function LayerResolutionComponentPositionIterator(context) {
    const siz = context.SIZ;
    const tileIndex = context.currentTile.index;
    const tile = context.tiles[tileIndex];
    const layersCount = tile.codingStyleDefaultParameters.layersCount;
    const componentsCount = siz.Csiz;
    let maxDecompositionLevelsCount = 0;
  
    for (let q = 0; q < componentsCount; q++) {
      maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, tile.components[q].codingStyleParameters.decompositionLevelsCount);
    }
  
    let l = 0,
        r = 0,
        i = 0,
        k = 0;
  
    this.nextPacket = function JpxImage_nextPacket() {
      for (; l < layersCount; l++) {
        for (; r <= maxDecompositionLevelsCount; r++) {
          for (; i < componentsCount; i++) {
            const component = tile.components[i];
  
            if (r > component.codingStyleParameters.decompositionLevelsCount) {
              continue;
            }
  
            const resolution = component.resolutions[r];
            const numprecincts = resolution.precinctParameters.numprecincts;
  
            for (; k < numprecincts;) {
              const packet = createPacket(resolution, k, l);
              k++;
              return packet;
            }
  
            k = 0;
          }
  
          i = 0;
        }
  
        r = 0;
      }
  
      throw new JpxError("Out of packets");
    };
  }
  
  function ResolutionLayerComponentPositionIterator(context) {
    const siz = context.SIZ;
    const tileIndex = context.currentTile.index;
    const tile = context.tiles[tileIndex];
    const layersCount = tile.codingStyleDefaultParameters.layersCount;
    const componentsCount = siz.Csiz;
    let maxDecompositionLevelsCount = 0;
  
    for (let q = 0; q < componentsCount; q++) {
      maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, tile.components[q].codingStyleParameters.decompositionLevelsCount);
    }
  
    let r = 0,
        l = 0,
        i = 0,
        k = 0;
  
    this.nextPacket = function JpxImage_nextPacket() {
      for (; r <= maxDecompositionLevelsCount; r++) {
        for (; l < layersCount; l++) {
          for (; i < componentsCount; i++) {
            const component = tile.components[i];
  
            if (r > component.codingStyleParameters.decompositionLevelsCount) {
              continue;
            }
  
            const resolution = component.resolutions[r];
            const numprecincts = resolution.precinctParameters.numprecincts;
  
            for (; k < numprecincts;) {
              const packet = createPacket(resolution, k, l);
              k++;
              return packet;
            }
  
            k = 0;
          }
  
          i = 0;
        }
  
        l = 0;
      }
  
      throw new JpxError("Out of packets");
    };
  }
  
  function ResolutionPositionComponentLayerIterator(context) {
    const siz = context.SIZ;
    const tileIndex = context.currentTile.index;
    const tile = context.tiles[tileIndex];
    const layersCount = tile.codingStyleDefaultParameters.layersCount;
    const componentsCount = siz.Csiz;
    let l, r, c, p;
    let maxDecompositionLevelsCount = 0;
  
    for (c = 0; c < componentsCount; c++) {
      const component = tile.components[c];
      maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, component.codingStyleParameters.decompositionLevelsCount);
    }
  
    const maxNumPrecinctsInLevel = new Int32Array(maxDecompositionLevelsCount + 1);
  
    for (r = 0; r <= maxDecompositionLevelsCount; ++r) {
      let maxNumPrecincts = 0;
  
      for (c = 0; c < componentsCount; ++c) {
        const resolutions = tile.components[c].resolutions;
  
        if (r < resolutions.length) {
          maxNumPrecincts = Math.max(maxNumPrecincts, resolutions[r].precinctParameters.numprecincts);
        }
      }
  
      maxNumPrecinctsInLevel[r] = maxNumPrecincts;
    }
  
    l = 0;
    r = 0;
    c = 0;
    p = 0;
  
    this.nextPacket = function JpxImage_nextPacket() {
      for (; r <= maxDecompositionLevelsCount; r++) {
        for (; p < maxNumPrecinctsInLevel[r]; p++) {
          for (; c < componentsCount; c++) {
            const component = tile.components[c];
  
            if (r > component.codingStyleParameters.decompositionLevelsCount) {
              continue;
            }
  
            const resolution = component.resolutions[r];
            const numprecincts = resolution.precinctParameters.numprecincts;
  
            if (p >= numprecincts) {
              continue;
            }
  
            for (; l < layersCount;) {
              const packet = createPacket(resolution, p, l);
              l++;
              return packet;
            }
  
            l = 0;
          }
  
          c = 0;
        }
  
        p = 0;
      }
  
      throw new JpxError("Out of packets");
    };
  }
  
  function PositionComponentResolutionLayerIterator(context) {
    const siz = context.SIZ;
    const tileIndex = context.currentTile.index;
    const tile = context.tiles[tileIndex];
    const layersCount = tile.codingStyleDefaultParameters.layersCount;
    const componentsCount = siz.Csiz;
    const precinctsSizes = getPrecinctSizesInImageScale(tile);
    const precinctsIterationSizes = precinctsSizes;
    let l = 0,
        r = 0,
        c = 0,
        px = 0,
        py = 0;
  
    this.nextPacket = function JpxImage_nextPacket() {
      for (; py < precinctsIterationSizes.maxNumHigh; py++) {
        for (; px < precinctsIterationSizes.maxNumWide; px++) {
          for (; c < componentsCount; c++) {
            const component = tile.components[c];
            const decompositionLevelsCount = component.codingStyleParameters.decompositionLevelsCount;
  
            for (; r <= decompositionLevelsCount; r++) {
              const resolution = component.resolutions[r];
              const sizeInImageScale = precinctsSizes.components[c].resolutions[r];
              const k = getPrecinctIndexIfExist(px, py, sizeInImageScale, precinctsIterationSizes, resolution);
  
              if (k === null) {
                continue;
              }
  
              for (; l < layersCount;) {
                const packet = createPacket(resolution, k, l);
                l++;
                return packet;
              }
  
              l = 0;
            }
  
            r = 0;
          }
  
          c = 0;
        }
  
        px = 0;
      }
  
      throw new JpxError("Out of packets");
    };
  }
  
  function ComponentPositionResolutionLayerIterator(context) {
    const siz = context.SIZ;
    const tileIndex = context.currentTile.index;
    const tile = context.tiles[tileIndex];
    const layersCount = tile.codingStyleDefaultParameters.layersCount;
    const componentsCount = siz.Csiz;
    const precinctsSizes = getPrecinctSizesInImageScale(tile);
    let l = 0,
        r = 0,
        c = 0,
        px = 0,
        py = 0;
  
    this.nextPacket = function JpxImage_nextPacket() {
      for (; c < componentsCount; ++c) {
        const component = tile.components[c];
        const precinctsIterationSizes = precinctsSizes.components[c];
        const decompositionLevelsCount = component.codingStyleParameters.decompositionLevelsCount;
  
        for (; py < precinctsIterationSizes.maxNumHigh; py++) {
          for (; px < precinctsIterationSizes.maxNumWide; px++) {
            for (; r <= decompositionLevelsCount; r++) {
              const resolution = component.resolutions[r];
              const sizeInImageScale = precinctsIterationSizes.resolutions[r];
              const k = getPrecinctIndexIfExist(px, py, sizeInImageScale, precinctsIterationSizes, resolution);
  
              if (k === null) {
                continue;
              }
  
              for (; l < layersCount;) {
                const packet = createPacket(resolution, k, l);
                l++;
                return packet;
              }
  
              l = 0;
            }
  
            r = 0;
          }
  
          px = 0;
        }
  
        py = 0;
      }
  
      throw new JpxError("Out of packets");
    };
  }
  
  function getPrecinctIndexIfExist(pxIndex, pyIndex, sizeInImageScale, precinctIterationSizes, resolution) {
    const posX = pxIndex * precinctIterationSizes.minWidth;
    const posY = pyIndex * precinctIterationSizes.minHeight;
  
    if (posX % sizeInImageScale.width !== 0 || posY % sizeInImageScale.height !== 0) {
      return null;
    }
  
    const startPrecinctRowIndex = posY / sizeInImageScale.width * resolution.precinctParameters.numprecinctswide;
    return posX / sizeInImageScale.height + startPrecinctRowIndex;
  }
  
  function getPrecinctSizesInImageScale(tile) {
    const componentsCount = tile.components.length;
    let minWidth = Number.MAX_VALUE;
    let minHeight = Number.MAX_VALUE;
    let maxNumWide = 0;
    let maxNumHigh = 0;
    const sizePerComponent = new Array(componentsCount);
  
    for (let c = 0; c < componentsCount; c++) {
      const component = tile.components[c];
      const decompositionLevelsCount = component.codingStyleParameters.decompositionLevelsCount;
      const sizePerResolution = new Array(decompositionLevelsCount + 1);
      let minWidthCurrentComponent = Number.MAX_VALUE;
      let minHeightCurrentComponent = Number.MAX_VALUE;
      let maxNumWideCurrentComponent = 0;
      let maxNumHighCurrentComponent = 0;
      let scale = 1;
  
      for (let r = decompositionLevelsCount; r >= 0; --r) {
        const resolution = component.resolutions[r];
        const widthCurrentResolution = scale * resolution.precinctParameters.precinctWidth;
        const heightCurrentResolution = scale * resolution.precinctParameters.precinctHeight;
        minWidthCurrentComponent = Math.min(minWidthCurrentComponent, widthCurrentResolution);
        minHeightCurrentComponent = Math.min(minHeightCurrentComponent, heightCurrentResolution);
        maxNumWideCurrentComponent = Math.max(maxNumWideCurrentComponent, resolution.precinctParameters.numprecinctswide);
        maxNumHighCurrentComponent = Math.max(maxNumHighCurrentComponent, resolution.precinctParameters.numprecinctshigh);
        sizePerResolution[r] = {
          width: widthCurrentResolution,
          height: heightCurrentResolution
        };
        scale <<= 1;
      }
  
      minWidth = Math.min(minWidth, minWidthCurrentComponent);
      minHeight = Math.min(minHeight, minHeightCurrentComponent);
      maxNumWide = Math.max(maxNumWide, maxNumWideCurrentComponent);
      maxNumHigh = Math.max(maxNumHigh, maxNumHighCurrentComponent);
      sizePerComponent[c] = {
        resolutions: sizePerResolution,
        minWidth: minWidthCurrentComponent,
        minHeight: minHeightCurrentComponent,
        maxNumWide: maxNumWideCurrentComponent,
        maxNumHigh: maxNumHighCurrentComponent
      };
    }
  
    return {
      components: sizePerComponent,
      minWidth,
      minHeight,
      maxNumWide,
      maxNumHigh
    };
  }
  
  function buildPackets(context) {
    const siz = context.SIZ;
    const tileIndex = context.currentTile.index;
    const tile = context.tiles[tileIndex];
    const componentsCount = siz.Csiz;
  
    for (let c = 0; c < componentsCount; c++) {
      const component = tile.components[c];
      const decompositionLevelsCount = component.codingStyleParameters.decompositionLevelsCount;
      const resolutions = [];
      const subbands = [];
  
      for (let r = 0; r <= decompositionLevelsCount; r++) {
        const blocksDimensions = getBlocksDimensions(context, component, r);
        const resolution = {};
        const scale = 1 << decompositionLevelsCount - r;
        resolution.trx0 = Math.ceil(component.tcx0 / scale);
        resolution.try0 = Math.ceil(component.tcy0 / scale);
        resolution.trx1 = Math.ceil(component.tcx1 / scale);
        resolution.try1 = Math.ceil(component.tcy1 / scale);
        resolution.resLevel = r;
        buildPrecincts(context, resolution, blocksDimensions);
        resolutions.push(resolution);
        let subband;
  
        if (r === 0) {
          subband = {};
          subband.type = "LL";
          subband.tbx0 = Math.ceil(component.tcx0 / scale);
          subband.tby0 = Math.ceil(component.tcy0 / scale);
          subband.tbx1 = Math.ceil(component.tcx1 / scale);
          subband.tby1 = Math.ceil(component.tcy1 / scale);
          subband.resolution = resolution;
          buildCodeblocks(context, subband, blocksDimensions);
          subbands.push(subband);
          resolution.subbands = [subband];
        } else {
          const bscale = 1 << decompositionLevelsCount - r + 1;
          const resolutionSubbands = [];
          subband = {};
          subband.type = "HL";
          subband.tbx0 = Math.ceil(component.tcx0 / bscale - 0.5);
          subband.tby0 = Math.ceil(component.tcy0 / bscale);
          subband.tbx1 = Math.ceil(component.tcx1 / bscale - 0.5);
          subband.tby1 = Math.ceil(component.tcy1 / bscale);
          subband.resolution = resolution;
          buildCodeblocks(context, subband, blocksDimensions);
          subbands.push(subband);
          resolutionSubbands.push(subband);
          subband = {};
          subband.type = "LH";
          subband.tbx0 = Math.ceil(component.tcx0 / bscale);
          subband.tby0 = Math.ceil(component.tcy0 / bscale - 0.5);
          subband.tbx1 = Math.ceil(component.tcx1 / bscale);
          subband.tby1 = Math.ceil(component.tcy1 / bscale - 0.5);
          subband.resolution = resolution;
          buildCodeblocks(context, subband, blocksDimensions);
          subbands.push(subband);
          resolutionSubbands.push(subband);
          subband = {};
          subband.type = "HH";
          subband.tbx0 = Math.ceil(component.tcx0 / bscale - 0.5);
          subband.tby0 = Math.ceil(component.tcy0 / bscale - 0.5);
          subband.tbx1 = Math.ceil(component.tcx1 / bscale - 0.5);
          subband.tby1 = Math.ceil(component.tcy1 / bscale - 0.5);
          subband.resolution = resolution;
          buildCodeblocks(context, subband, blocksDimensions);
          subbands.push(subband);
          resolutionSubbands.push(subband);
          resolution.subbands = resolutionSubbands;
        }
      }
  
      component.resolutions = resolutions;
      component.subbands = subbands;
    }
  
    const progressionOrder = tile.codingStyleDefaultParameters.progressionOrder;
  
    switch (progressionOrder) {
      case 0:
        tile.packetsIterator = new LayerResolutionComponentPositionIterator(context);
        break;
  
      case 1:
        tile.packetsIterator = new ResolutionLayerComponentPositionIterator(context);
        break;
  
      case 2:
        tile.packetsIterator = new ResolutionPositionComponentLayerIterator(context);
        break;
  
      case 3:
        tile.packetsIterator = new PositionComponentResolutionLayerIterator(context);
        break;
  
      case 4:
        tile.packetsIterator = new ComponentPositionResolutionLayerIterator(context);
        break;
  
      default:
        throw new JpxError(`Unsupported progression order ${progressionOrder}`);
    }
  }
  
  function parseTilePackets(context, data, offset, dataLength) {
    let position = 0;
    let buffer,
        bufferSize = 0,
        skipNextBit = false;
  
    function readBits(count) {
      while (bufferSize < count) {
        const b = data[offset + position];
        position++;
  
        if (skipNextBit) {
          buffer = buffer << 7 | b;
          bufferSize += 7;
          skipNextBit = false;
        } else {
          buffer = buffer << 8 | b;
          bufferSize += 8;
        }
  
        if (b === 0xff) {
          skipNextBit = true;
        }
      }
  
      bufferSize -= count;
      return buffer >>> bufferSize & (1 << count) - 1;
    }
  
    function skipMarkerIfEqual(value) {
      if (data[offset + position - 1] === 0xff && data[offset + position] === value) {
        skipBytes(1);
        return true;
      } else if (data[offset + position] === 0xff && data[offset + position + 1] === value) {
        skipBytes(2);
        return true;
      }
  
      return false;
    }
  
    function skipBytes(count) {
      position += count;
    }
  
    function alignToByte() {
      bufferSize = 0;
  
      if (skipNextBit) {
        position++;
        skipNextBit = false;
      }
    }
  
    function readCodingpasses() {
      if (readBits(1) === 0) {
        return 1;
      }
  
      if (readBits(1) === 0) {
        return 2;
      }
  
      let value = readBits(2);
  
      if (value < 3) {
        return value + 3;
      }
  
      value = readBits(5);
  
      if (value < 31) {
        return value + 6;
      }
  
      value = readBits(7);
      return value + 37;
    }
  
    const tileIndex = context.currentTile.index;
    const tile = context.tiles[tileIndex];
    const sopMarkerUsed = context.COD.sopMarkerUsed;
    const ephMarkerUsed = context.COD.ephMarkerUsed;
    const packetsIterator = tile.packetsIterator;
  
    while (position < dataLength) {
      alignToByte();
  
      if (sopMarkerUsed && skipMarkerIfEqual(0x91)) {
        skipBytes(4);
      }
  
      const packet = packetsIterator.nextPacket();
  
      if (!readBits(1)) {
        continue;
      }
  
      const layerNumber = packet.layerNumber,
            queue = [];
      let codeblock;
  
      for (let i = 0, ii = packet.codeblocks.length; i < ii; i++) {
        codeblock = packet.codeblocks[i];
        let precinct = codeblock.precinct;
        const codeblockColumn = codeblock.cbx - precinct.cbxMin;
        const codeblockRow = codeblock.cby - precinct.cbyMin;
        let codeblockIncluded = false;
        let firstTimeInclusion = false;
        let valueReady, zeroBitPlanesTree;
  
        if (codeblock.included !== undefined) {
          codeblockIncluded = !!readBits(1);
        } else {
          precinct = codeblock.precinct;
          let inclusionTree;
  
          if (precinct.inclusionTree !== undefined) {
            inclusionTree = precinct.inclusionTree;
          } else {
            const width = precinct.cbxMax - precinct.cbxMin + 1;
            const height = precinct.cbyMax - precinct.cbyMin + 1;
            inclusionTree = new InclusionTree(width, height, layerNumber);
            zeroBitPlanesTree = new TagTree(width, height);
            precinct.inclusionTree = inclusionTree;
            precinct.zeroBitPlanesTree = zeroBitPlanesTree;
  
            for (let l = 0; l < layerNumber; l++) {
              if (readBits(1) !== 0) {
                throw new JpxError("Invalid tag tree");
              }
            }
          }
  
          if (inclusionTree.reset(codeblockColumn, codeblockRow, layerNumber)) {
            while (true) {
              if (readBits(1)) {
                valueReady = !inclusionTree.nextLevel();
  
                if (valueReady) {
                  codeblock.included = true;
                  codeblockIncluded = firstTimeInclusion = true;
                  break;
                }
              } else {
                inclusionTree.incrementValue(layerNumber);
                break;
              }
            }
          }
        }
  
        if (!codeblockIncluded) {
          continue;
        }
  
        if (firstTimeInclusion) {
          zeroBitPlanesTree = precinct.zeroBitPlanesTree;
          zeroBitPlanesTree.reset(codeblockColumn, codeblockRow);
  
          while (true) {
            if (readBits(1)) {
              valueReady = !zeroBitPlanesTree.nextLevel();
  
              if (valueReady) {
                break;
              }
            } else {
              zeroBitPlanesTree.incrementValue();
            }
          }
  
          codeblock.zeroBitPlanes = zeroBitPlanesTree.value;
        }
  
        const codingpasses = readCodingpasses();
  
        while (readBits(1)) {
          codeblock.Lblock++;
        }
  
        const codingpassesLog2 = (0, _core_utils.log2)(codingpasses);
        const bits = (codingpasses < 1 << codingpassesLog2 ? codingpassesLog2 - 1 : codingpassesLog2) + codeblock.Lblock;
        const codedDataLength = readBits(bits);
        queue.push({
          codeblock,
          codingpasses,
          dataLength: codedDataLength
        });
      }
  
      alignToByte();
  
      if (ephMarkerUsed) {
        skipMarkerIfEqual(0x92);
      }
  
      while (queue.length > 0) {
        const packetItem = queue.shift();
        codeblock = packetItem.codeblock;
  
        if (codeblock.data === undefined) {
          codeblock.data = [];
        }
  
        codeblock.data.push({
          data,
          start: offset + position,
          end: offset + position + packetItem.dataLength,
          codingpasses: packetItem.codingpasses
        });
        position += packetItem.dataLength;
      }
    }
  
    return position;
  }
  
  function copyCoefficients(coefficients, levelWidth, levelHeight, subband, delta, mb, reversible, segmentationSymbolUsed) {
    const x0 = subband.tbx0;
    const y0 = subband.tby0;
    const width = subband.tbx1 - subband.tbx0;
    const codeblocks = subband.codeblocks;
    const right = subband.type.charAt(0) === "H" ? 1 : 0;
    const bottom = subband.type.charAt(1) === "H" ? levelWidth : 0;
  
    for (let i = 0, ii = codeblocks.length; i < ii; ++i) {
      const codeblock = codeblocks[i];
      const blockWidth = codeblock.tbx1_ - codeblock.tbx0_;
      const blockHeight = codeblock.tby1_ - codeblock.tby0_;
  
      if (blockWidth === 0 || blockHeight === 0) {
        continue;
      }
  
      if (codeblock.data === undefined) {
        continue;
      }
  
      const bitModel = new BitModel(blockWidth, blockHeight, codeblock.subbandType, codeblock.zeroBitPlanes, mb);
      let currentCodingpassType = 2;
      const data = codeblock.data;
      let totalLength = 0,
          codingpasses = 0;
      let j, jj, dataItem;
  
      for (j = 0, jj = data.length; j < jj; j++) {
        dataItem = data[j];
        totalLength += dataItem.end - dataItem.start;
        codingpasses += dataItem.codingpasses;
      }
  
      const encodedData = new Uint8Array(totalLength);
      let position = 0;
  
      for (j = 0, jj = data.length; j < jj; j++) {
        dataItem = data[j];
        const chunk = dataItem.data.subarray(dataItem.start, dataItem.end);
        encodedData.set(chunk, position);
        position += chunk.length;
      }
  
      const decoder = new _arithmetic_decoder.ArithmeticDecoder(encodedData, 0, totalLength);
      bitModel.setDecoder(decoder);
  
      for (j = 0; j < codingpasses; j++) {
        switch (currentCodingpassType) {
          case 0:
            bitModel.runSignificancePropagationPass();
            break;
  
          case 1:
            bitModel.runMagnitudeRefinementPass();
            break;
  
          case 2:
            bitModel.runCleanupPass();
  
            if (segmentationSymbolUsed) {
              bitModel.checkSegmentationSymbol();
            }
  
            break;
        }
  
        currentCodingpassType = (currentCodingpassType + 1) % 3;
      }
  
      let offset = codeblock.tbx0_ - x0 + (codeblock.tby0_ - y0) * width;
      const sign = bitModel.coefficentsSign;
      const magnitude = bitModel.coefficentsMagnitude;
      const bitsDecoded = bitModel.bitsDecoded;
      const magnitudeCorrection = reversible ? 0 : 0.5;
      let k, n, nb;
      position = 0;
      const interleave = subband.type !== "LL";
  
      for (j = 0; j < blockHeight; j++) {
        const row = offset / width | 0;
        const levelOffset = 2 * row * (levelWidth - width) + right + bottom;
  
        for (k = 0; k < blockWidth; k++) {
          n = magnitude[position];
  
          if (n !== 0) {
            n = (n + magnitudeCorrection) * delta;
  
            if (sign[position] !== 0) {
              n = -n;
            }
  
            nb = bitsDecoded[position];
            const pos = interleave ? levelOffset + (offset << 1) : offset;
  
            if (reversible && nb >= mb) {
              coefficients[pos] = n;
            } else {
              coefficients[pos] = n * (1 << mb - nb);
            }
          }
  
          offset++;
          position++;
        }
  
        offset += width - blockWidth;
      }
    }
  }
  
  function transformTile(context, tile, c) {
    const component = tile.components[c];
    const codingStyleParameters = component.codingStyleParameters;
    const quantizationParameters = component.quantizationParameters;
    const decompositionLevelsCount = codingStyleParameters.decompositionLevelsCount;
    const spqcds = quantizationParameters.SPqcds;
    const scalarExpounded = quantizationParameters.scalarExpounded;
    const guardBits = quantizationParameters.guardBits;
    const segmentationSymbolUsed = codingStyleParameters.segmentationSymbolUsed;
    const precision = context.components[c].precision;
    const reversible = codingStyleParameters.reversibleTransformation;
    const transform = reversible ? new ReversibleTransform() : new IrreversibleTransform();
    const subbandCoefficients = [];
    let b = 0;
  
    for (let i = 0; i <= decompositionLevelsCount; i++) {
      const resolution = component.resolutions[i];
      const width = resolution.trx1 - resolution.trx0;
      const height = resolution.try1 - resolution.try0;
      const coefficients = new Float32Array(width * height);
  
      for (let j = 0, jj = resolution.subbands.length; j < jj; j++) {
        let mu, epsilon;
  
        if (!scalarExpounded) {
          mu = spqcds[0].mu;
          epsilon = spqcds[0].epsilon + (i > 0 ? 1 - i : 0);
        } else {
          mu = spqcds[b].mu;
          epsilon = spqcds[b].epsilon;
          b++;
        }
  
        const subband = resolution.subbands[j];
        const gainLog2 = SubbandsGainLog2[subband.type];
        const delta = reversible ? 1 : 2 ** (precision + gainLog2 - epsilon) * (1 + mu / 2048);
        const mb = guardBits + epsilon - 1;
        copyCoefficients(coefficients, width, height, subband, delta, mb, reversible, segmentationSymbolUsed);
      }
  
      subbandCoefficients.push({
        width,
        height,
        items: coefficients
      });
    }
  
    const result = transform.calculate(subbandCoefficients, component.tcx0, component.tcy0);
    return {
      left: component.tcx0,
      top: component.tcy0,
      width: result.width,
      height: result.height,
      items: result.items
    };
  }
  
  function transformComponents(context) {
    const siz = context.SIZ;
    const components = context.components;
    const componentsCount = siz.Csiz;
    const resultImages = [];
  
    for (let i = 0, ii = context.tiles.length; i < ii; i++) {
      const tile = context.tiles[i];
      const transformedTiles = [];
  
      for (let c = 0; c < componentsCount; c++) {
        transformedTiles[c] = transformTile(context, tile, c);
      }
  
      const tile0 = transformedTiles[0];
      const out = new Uint8ClampedArray(tile0.items.length * componentsCount);
      const result = {
        left: tile0.left,
        top: tile0.top,
        width: tile0.width,
        height: tile0.height,
        items: out
      };
      let shift, offset;
      let pos = 0,
          j,
          jj,
          y0,
          y1,
          y2;
  
      if (tile.codingStyleDefaultParameters.multipleComponentTransform) {
        const fourComponents = componentsCount === 4;
        const y0items = transformedTiles[0].items;
        const y1items = transformedTiles[1].items;
        const y2items = transformedTiles[2].items;
        const y3items = fourComponents ? transformedTiles[3].items : null;
        shift = components[0].precision - 8;
        offset = (128 << shift) + 0.5;
        const component0 = tile.components[0];
        const alpha01 = componentsCount - 3;
        jj = y0items.length;
  
        if (!component0.codingStyleParameters.reversibleTransformation) {
          for (j = 0; j < jj; j++, pos += alpha01) {
            y0 = y0items[j] + offset;
            y1 = y1items[j];
            y2 = y2items[j];
            out[pos++] = y0 + 1.402 * y2 >> shift;
            out[pos++] = y0 - 0.34413 * y1 - 0.71414 * y2 >> shift;
            out[pos++] = y0 + 1.772 * y1 >> shift;
          }
        } else {
          for (j = 0; j < jj; j++, pos += alpha01) {
            y0 = y0items[j] + offset;
            y1 = y1items[j];
            y2 = y2items[j];
            const g = y0 - (y2 + y1 >> 2);
            out[pos++] = g + y2 >> shift;
            out[pos++] = g >> shift;
            out[pos++] = g + y1 >> shift;
          }
        }
  
        if (fourComponents) {
          for (j = 0, pos = 3; j < jj; j++, pos += 4) {
            out[pos] = y3items[j] + offset >> shift;
          }
        }
      } else {
        for (let c = 0; c < componentsCount; c++) {
          const items = transformedTiles[c].items;
          shift = components[c].precision - 8;
          offset = (128 << shift) + 0.5;
  
          for (pos = c, j = 0, jj = items.length; j < jj; j++) {
            out[pos] = items[j] + offset >> shift;
            pos += componentsCount;
          }
        }
      }
  
      resultImages.push(result);
    }
  
    return resultImages;
  }
  
  function initializeTile(context, tileIndex) {
    const siz = context.SIZ;
    const componentsCount = siz.Csiz;
    const tile = context.tiles[tileIndex];
  
    for (let c = 0; c < componentsCount; c++) {
      const component = tile.components[c];
      const qcdOrQcc = context.currentTile.QCC[c] !== undefined ? context.currentTile.QCC[c] : context.currentTile.QCD;
      component.quantizationParameters = qcdOrQcc;
      const codOrCoc = context.currentTile.COC[c] !== undefined ? context.currentTile.COC[c] : context.currentTile.COD;
      component.codingStyleParameters = codOrCoc;
    }
  
    tile.codingStyleDefaultParameters = context.currentTile.COD;
  }
  
  class TagTree {
    constructor(width, height) {
      const levelsLength = (0, _core_utils.log2)(Math.max(width, height)) + 1;
      this.levels = [];
  
      for (let i = 0; i < levelsLength; i++) {
        const level = {
          width,
          height,
          items: []
        };
        this.levels.push(level);
        width = Math.ceil(width / 2);
        height = Math.ceil(height / 2);
      }
    }
  
    reset(i, j) {
      let currentLevel = 0,
          value = 0,
          level;
  
      while (currentLevel < this.levels.length) {
        level = this.levels[currentLevel];
        const index = i + j * level.width;
  
        if (level.items[index] !== undefined) {
          value = level.items[index];
          break;
        }
  
        level.index = index;
        i >>= 1;
        j >>= 1;
        currentLevel++;
      }
  
      currentLevel--;
      level = this.levels[currentLevel];
      level.items[level.index] = value;
      this.currentLevel = currentLevel;
      delete this.value;
    }
  
    incrementValue() {
      const level = this.levels[this.currentLevel];
      level.items[level.index]++;
    }
  
    nextLevel() {
      let currentLevel = this.currentLevel;
      let level = this.levels[currentLevel];
      const value = level.items[level.index];
      currentLevel--;
  
      if (currentLevel < 0) {
        this.value = value;
        return false;
      }
  
      this.currentLevel = currentLevel;
      level = this.levels[currentLevel];
      level.items[level.index] = value;
      return true;
    }
  
  }
  
  class InclusionTree {
    constructor(width, height, defaultValue) {
      const levelsLength = (0, _core_utils.log2)(Math.max(width, height)) + 1;
      this.levels = [];
  
      for (let i = 0; i < levelsLength; i++) {
        const items = new Uint8Array(width * height);
  
        for (let j = 0, jj = items.length; j < jj; j++) {
          items[j] = defaultValue;
        }
  
        const level = {
          width,
          height,
          items
        };
        this.levels.push(level);
        width = Math.ceil(width / 2);
        height = Math.ceil(height / 2);
      }
    }
  
    reset(i, j, stopValue) {
      let currentLevel = 0;
  
      while (currentLevel < this.levels.length) {
        const level = this.levels[currentLevel];
        const index = i + j * level.width;
        level.index = index;
        const value = level.items[index];
  
        if (value === 0xff) {
          break;
        }
  
        if (value > stopValue) {
          this.currentLevel = currentLevel;
          this.propagateValues();
          return false;
        }
  
        i >>= 1;
        j >>= 1;
        currentLevel++;
      }
  
      this.currentLevel = currentLevel - 1;
      return true;
    }
  
    incrementValue(stopValue) {
      const level = this.levels[this.currentLevel];
      level.items[level.index] = stopValue + 1;
      this.propagateValues();
    }
  
    propagateValues() {
      let levelIndex = this.currentLevel;
      let level = this.levels[levelIndex];
      const currentValue = level.items[level.index];
  
      while (--levelIndex >= 0) {
        level = this.levels[levelIndex];
        level.items[level.index] = currentValue;
      }
    }
  
    nextLevel() {
      let currentLevel = this.currentLevel;
      let level = this.levels[currentLevel];
      const value = level.items[level.index];
      level.items[level.index] = 0xff;
      currentLevel--;
  
      if (currentLevel < 0) {
        return false;
      }
  
      this.currentLevel = currentLevel;
      level = this.levels[currentLevel];
      level.items[level.index] = value;
      return true;
    }
  
  }
  
  const BitModel = function BitModelClosure() {
    const UNIFORM_CONTEXT = 17;
    const RUNLENGTH_CONTEXT = 18;
    const 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]);
    const 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]);
    const 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]);
  
    class BitModel {
      constructor(width, height, subband, zeroBitPlanes, mb) {
        this.width = width;
        this.height = height;
        let contextLabelTable;
  
        if (subband === "HH") {
          contextLabelTable = HHContextLabel;
        } else if (subband === "HL") {
          contextLabelTable = HLContextLabel;
        } else {
          contextLabelTable = LLAndLHContextsLabel;
        }
  
        this.contextLabelTable = contextLabelTable;
        const coefficientCount = width * height;
        this.neighborsSignificance = new Uint8Array(coefficientCount);
        this.coefficentsSign = new Uint8Array(coefficientCount);
        let coefficentsMagnitude;
  
        if (mb > 14) {
          coefficentsMagnitude = new Uint32Array(coefficientCount);
        } else if (mb > 6) {
          coefficentsMagnitude = new Uint16Array(coefficientCount);
        } else {
          coefficentsMagnitude = new Uint8Array(coefficientCount);
        }
  
        this.coefficentsMagnitude = coefficentsMagnitude;
        this.processingFlags = new Uint8Array(coefficientCount);
        const bitsDecoded = new Uint8Array(coefficientCount);
  
        if (zeroBitPlanes !== 0) {
          for (let i = 0; i < coefficientCount; i++) {
            bitsDecoded[i] = zeroBitPlanes;
          }
        }
  
        this.bitsDecoded = bitsDecoded;
        this.reset();
      }
  
      setDecoder(decoder) {
        this.decoder = decoder;
      }
  
      reset() {
        this.contexts = new Int8Array(19);
        this.contexts[0] = 4 << 1 | 0;
        this.contexts[UNIFORM_CONTEXT] = 46 << 1 | 0;
        this.contexts[RUNLENGTH_CONTEXT] = 3 << 1 | 0;
      }
  
      setNeighborsSignificance(row, column, index) {
        const neighborsSignificance = this.neighborsSignificance;
        const width = this.width,
              height = this.height;
        const left = column > 0;
        const right = column + 1 < width;
        let i;
  
        if (row > 0) {
          i = index - width;
  
          if (left) {
            neighborsSignificance[i - 1] += 0x10;
          }
  
          if (right) {
            neighborsSignificance[i + 1] += 0x10;
          }
  
          neighborsSignificance[i] += 0x04;
        }
  
        if (row + 1 < height) {
          i = index + width;
  
          if (left) {
            neighborsSignificance[i - 1] += 0x10;
          }
  
          if (right) {
            neighborsSignificance[i + 1] += 0x10;
          }
  
          neighborsSignificance[i] += 0x04;
        }
  
        if (left) {
          neighborsSignificance[index - 1] += 0x01;
        }
  
        if (right) {
          neighborsSignificance[index + 1] += 0x01;
        }
  
        neighborsSignificance[index] |= 0x80;
      }
  
      runSignificancePropagationPass() {
        const decoder = this.decoder;
        const width = this.width,
              height = this.height;
        const coefficentsMagnitude = this.coefficentsMagnitude;
        const coefficentsSign = this.coefficentsSign;
        const neighborsSignificance = this.neighborsSignificance;
        const processingFlags = this.processingFlags;
        const contexts = this.contexts;
        const labels = this.contextLabelTable;
        const bitsDecoded = this.bitsDecoded;
        const processedInverseMask = ~1;
        const processedMask = 1;
        const firstMagnitudeBitMask = 2;
  
        for (let i0 = 0; i0 < height; i0 += 4) {
          for (let j = 0; j < width; j++) {
            let index = i0 * width + j;
  
            for (let i1 = 0; i1 < 4; i1++, index += width) {
              const i = i0 + i1;
  
              if (i >= height) {
                break;
              }
  
              processingFlags[index] &= processedInverseMask;
  
              if (coefficentsMagnitude[index] || !neighborsSignificance[index]) {
                continue;
              }
  
              const contextLabel = labels[neighborsSignificance[index]];
              const decision = decoder.readBit(contexts, contextLabel);
  
              if (decision) {
                const sign = this.decodeSignBit(i, j, index);
                coefficentsSign[index] = sign;
                coefficentsMagnitude[index] = 1;
                this.setNeighborsSignificance(i, j, index);
                processingFlags[index] |= firstMagnitudeBitMask;
              }
  
              bitsDecoded[index]++;
              processingFlags[index] |= processedMask;
            }
          }
        }
      }
  
      decodeSignBit(row, column, index) {
        const width = this.width,
              height = this.height;
        const coefficentsMagnitude = this.coefficentsMagnitude;
        const coefficentsSign = this.coefficentsSign;
        let contribution, sign0, sign1, significance1;
        let contextLabel, decoded;
        significance1 = column > 0 && coefficentsMagnitude[index - 1] !== 0;
  
        if (column + 1 < width && coefficentsMagnitude[index + 1] !== 0) {
          sign1 = coefficentsSign[index + 1];
  
          if (significance1) {
            sign0 = coefficentsSign[index - 1];
            contribution = 1 - sign1 - sign0;
          } else {
            contribution = 1 - sign1 - sign1;
          }
        } else if (significance1) {
          sign0 = coefficentsSign[index - 1];
          contribution = 1 - sign0 - sign0;
        } else {
          contribution = 0;
        }
  
        const horizontalContribution = 3 * contribution;
        significance1 = row > 0 && coefficentsMagnitude[index - width] !== 0;
  
        if (row + 1 < height && coefficentsMagnitude[index + width] !== 0) {
          sign1 = coefficentsSign[index + width];
  
          if (significance1) {
            sign0 = coefficentsSign[index - width];
            contribution = 1 - sign1 - sign0 + horizontalContribution;
          } else {
            contribution = 1 - sign1 - sign1 + horizontalContribution;
          }
        } else if (significance1) {
          sign0 = coefficentsSign[index - width];
          contribution = 1 - sign0 - sign0 + horizontalContribution;
        } else {
          contribution = horizontalContribution;
        }
  
        if (contribution >= 0) {
          contextLabel = 9 + contribution;
          decoded = this.decoder.readBit(this.contexts, contextLabel);
        } else {
          contextLabel = 9 - contribution;
          decoded = this.decoder.readBit(this.contexts, contextLabel) ^ 1;
        }
  
        return decoded;
      }
  
      runMagnitudeRefinementPass() {
        const decoder = this.decoder;
        const width = this.width,
              height = this.height;
        const coefficentsMagnitude = this.coefficentsMagnitude;
        const neighborsSignificance = this.neighborsSignificance;
        const contexts = this.contexts;
        const bitsDecoded = this.bitsDecoded;
        const processingFlags = this.processingFlags;
        const processedMask = 1;
        const firstMagnitudeBitMask = 2;
        const length = width * height;
        const width4 = width * 4;
  
        for (let index0 = 0, indexNext; index0 < length; index0 = indexNext) {
          indexNext = Math.min(length, index0 + width4);
  
          for (let j = 0; j < width; j++) {
            for (let index = index0 + j; index < indexNext; index += width) {
              if (!coefficentsMagnitude[index] || (processingFlags[index] & processedMask) !== 0) {
                continue;
              }
  
              let contextLabel = 16;
  
              if ((processingFlags[index] & firstMagnitudeBitMask) !== 0) {
                processingFlags[index] ^= firstMagnitudeBitMask;
                const significance = neighborsSignificance[index] & 127;
                contextLabel = significance === 0 ? 15 : 14;
              }
  
              const bit = decoder.readBit(contexts, contextLabel);
              coefficentsMagnitude[index] = coefficentsMagnitude[index] << 1 | bit;
              bitsDecoded[index]++;
              processingFlags[index] |= processedMask;
            }
          }
        }
      }
  
      runCleanupPass() {
        const decoder = this.decoder;
        const width = this.width,
              height = this.height;
        const neighborsSignificance = this.neighborsSignificance;
        const coefficentsMagnitude = this.coefficentsMagnitude;
        const coefficentsSign = this.coefficentsSign;
        const contexts = this.contexts;
        const labels = this.contextLabelTable;
        const bitsDecoded = this.bitsDecoded;
        const processingFlags = this.processingFlags;
        const processedMask = 1;
        const firstMagnitudeBitMask = 2;
        const oneRowDown = width;
        const twoRowsDown = width * 2;
        const threeRowsDown = width * 3;
        let iNext;
  
        for (let i0 = 0; i0 < height; i0 = iNext) {
          iNext = Math.min(i0 + 4, height);
          const indexBase = i0 * width;
          const checkAllEmpty = i0 + 3 < height;
  
          for (let j = 0; j < width; j++) {
            const index0 = indexBase + j;
            const 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;
            let i1 = 0,
                index = index0;
            let i = i0,
                sign;
  
            if (allEmpty) {
              const hasSignificantCoefficent = decoder.readBit(contexts, RUNLENGTH_CONTEXT);
  
              if (!hasSignificantCoefficent) {
                bitsDecoded[index0]++;
                bitsDecoded[index0 + oneRowDown]++;
                bitsDecoded[index0 + twoRowsDown]++;
                bitsDecoded[index0 + threeRowsDown]++;
                continue;
              }
  
              i1 = decoder.readBit(contexts, UNIFORM_CONTEXT) << 1 | decoder.readBit(contexts, UNIFORM_CONTEXT);
  
              if (i1 !== 0) {
                i = i0 + i1;
                index += i1 * width;
              }
  
              sign = this.decodeSignBit(i, j, index);
              coefficentsSign[index] = sign;
              coefficentsMagnitude[index] = 1;
              this.setNeighborsSignificance(i, j, index);
              processingFlags[index] |= firstMagnitudeBitMask;
              index = index0;
  
              for (let i2 = i0; i2 <= i; i2++, index += width) {
                bitsDecoded[index]++;
              }
  
              i1++;
            }
  
            for (i = i0 + i1; i < iNext; i++, index += width) {
              if (coefficentsMagnitude[index] || (processingFlags[index] & processedMask) !== 0) {
                continue;
              }
  
              const contextLabel = labels[neighborsSignificance[index]];
              const decision = decoder.readBit(contexts, contextLabel);
  
              if (decision === 1) {
                sign = this.decodeSignBit(i, j, index);
                coefficentsSign[index] = sign;
                coefficentsMagnitude[index] = 1;
                this.setNeighborsSignificance(i, j, index);
                processingFlags[index] |= firstMagnitudeBitMask;
              }
  
              bitsDecoded[index]++;
            }
          }
        }
      }
  
      checkSegmentationSymbol() {
        const decoder = this.decoder;
        const contexts = this.contexts;
        const symbol = decoder.readBit(contexts, UNIFORM_CONTEXT) << 3 | decoder.readBit(contexts, UNIFORM_CONTEXT) << 2 | decoder.readBit(contexts, UNIFORM_CONTEXT) << 1 | decoder.readBit(contexts, UNIFORM_CONTEXT);
  
        if (symbol !== 0xa) {
          throw new JpxError("Invalid segmentation symbol");
        }
      }
  
    }
  
    return BitModel;
  }();
  
  class Transform {
    constructor() {
      if (this.constructor === Transform) {
        (0, _util.unreachable)("Cannot initialize Transform.");
      }
    }
  
    calculate(subbands, u0, v0) {
      let ll = subbands[0];
  
      for (let i = 1, ii = subbands.length; i < ii; i++) {
        ll = this.iterate(ll, subbands[i], u0, v0);
      }
  
      return ll;
    }
  
    extend(buffer, offset, size) {
      let i1 = offset - 1,
          j1 = offset + 1;
      let i2 = offset + size - 2,
          j2 = offset + size;
      buffer[i1--] = buffer[j1++];
      buffer[j2++] = buffer[i2--];
      buffer[i1--] = buffer[j1++];
      buffer[j2++] = buffer[i2--];
      buffer[i1--] = buffer[j1++];
      buffer[j2++] = buffer[i2--];
      buffer[i1] = buffer[j1];
      buffer[j2] = buffer[i2];
    }
  
    filter(x, offset, length) {
      (0, _util.unreachable)("Abstract method `filter` called");
    }
  
    iterate(ll, hl_lh_hh, u0, v0) {
      const llWidth = ll.width,
            llHeight = ll.height;
      let llItems = ll.items;
      const width = hl_lh_hh.width;
      const height = hl_lh_hh.height;
      const items = hl_lh_hh.items;
      let i, j, k, l, u, v;
  
      for (k = 0, i = 0; i < llHeight; i++) {
        l = i * 2 * width;
  
        for (j = 0; j < llWidth; j++, k++, l += 2) {
          items[l] = llItems[k];
        }
      }
  
      llItems = ll.items = null;
      const bufferPadding = 4;
      const rowBuffer = new Float32Array(width + 2 * bufferPadding);
  
      if (width === 1) {
        if ((u0 & 1) !== 0) {
          for (v = 0, k = 0; v < height; v++, k += width) {
            items[k] *= 0.5;
          }
        }
      } else {
        for (v = 0, k = 0; v < height; v++, k += width) {
          rowBuffer.set(items.subarray(k, k + width), bufferPadding);
          this.extend(rowBuffer, bufferPadding, width);
          this.filter(rowBuffer, bufferPadding, width);
          items.set(rowBuffer.subarray(bufferPadding, bufferPadding + width), k);
        }
      }
  
      let numBuffers = 16;
      const colBuffers = [];
  
      for (i = 0; i < numBuffers; i++) {
        colBuffers.push(new Float32Array(height + 2 * bufferPadding));
      }
  
      let b,
          currentBuffer = 0;
      ll = bufferPadding + height;
  
      if (height === 1) {
        if ((v0 & 1) !== 0) {
          for (u = 0; u < width; u++) {
            items[u] *= 0.5;
          }
        }
      } else {
        for (u = 0; u < width; u++) {
          if (currentBuffer === 0) {
            numBuffers = Math.min(width - u, numBuffers);
  
            for (k = u, l = bufferPadding; l < ll; k += width, l++) {
              for (b = 0; b < numBuffers; b++) {
                colBuffers[b][l] = items[k + b];
              }
            }
  
            currentBuffer = numBuffers;
          }
  
          currentBuffer--;
          const buffer = colBuffers[currentBuffer];
          this.extend(buffer, bufferPadding, height);
          this.filter(buffer, bufferPadding, height);
  
          if (currentBuffer === 0) {
            k = u - numBuffers + 1;
  
            for (l = bufferPadding; l < ll; k += width, l++) {
              for (b = 0; b < numBuffers; b++) {
                items[k + b] = colBuffers[b][l];
              }
            }
          }
        }
      }
  
      return {
        width,
        height,
        items
      };
    }
  
  }
  
  class IrreversibleTransform extends Transform {
    filter(x, offset, length) {
      const len = length >> 1;
      offset |= 0;
      let j, n, current, next;
      const alpha = -1.586134342059924;
      const beta = -0.052980118572961;
      const gamma = 0.882911075530934;
      const delta = 0.443506852043971;
      const K = 1.230174104914001;
      const K_ = 1 / K;
      j = offset - 3;
  
      for (n = len + 4; n--; j += 2) {
        x[j] *= K_;
      }
  
      j = offset - 2;
      current = delta * x[j - 1];
  
      for (n = len + 3; n--; j += 2) {
        next = delta * x[j + 1];
        x[j] = K * x[j] - current - next;
  
        if (n--) {
          j += 2;
          current = delta * x[j + 1];
          x[j] = K * x[j] - current - next;
        } else {
          break;
        }
      }
  
      j = offset - 1;
      current = gamma * x[j - 1];
  
      for (n = len + 2; n--; j += 2) {
        next = gamma * x[j + 1];
        x[j] -= current + next;
  
        if (n--) {
          j += 2;
          current = gamma * x[j + 1];
          x[j] -= current + next;
        } else {
          break;
        }
      }
  
      j = offset;
      current = beta * x[j - 1];
  
      for (n = len + 1; n--; j += 2) {
        next = beta * x[j + 1];
        x[j] -= current + next;
  
        if (n--) {
          j += 2;
          current = beta * x[j + 1];
          x[j] -= current + next;
        } else {
          break;
        }
      }
  
      if (len !== 0) {
        j = offset + 1;
        current = alpha * x[j - 1];
  
        for (n = len; n--; j += 2) {
          next = alpha * x[j + 1];
          x[j] -= current + next;
  
          if (n--) {
            j += 2;
            current = alpha * x[j + 1];
            x[j] -= current + next;
          } else {
            break;
          }
        }
      }
    }
  
  }
  
  class ReversibleTransform extends Transform {
    filter(x, offset, length) {
      const len = length >> 1;
      offset |= 0;
      let j, n;
  
      for (j = offset, n = len + 1; n--; j += 2) {
        x[j] -= x[j - 1] + x[j + 1] + 2 >> 2;
      }
  
      for (j = offset + 1, n = len; n--; j += 2) {
        x[j] += x[j - 1] + x[j + 1] >> 1;
      }
    }
  
  }
  
  /***/ })
  /******/ 	]);
  /************************************************************************/
  /******/ 	// The module cache
  /******/ 	var __webpack_module_cache__ = {};
  /******/ 	
  /******/ 	// The require function
  /******/ 	function __w_pdfjs_require__(moduleId) {
  /******/ 		// Check if module is in cache
  /******/ 		var cachedModule = __webpack_module_cache__[moduleId];
  /******/ 		if (cachedModule !== undefined) {
  /******/ 			return cachedModule.exports;
  /******/ 		}
  /******/ 		// Create a new module (and put it into the cache)
  /******/ 		var module = __webpack_module_cache__[moduleId] = {
  /******/ 			// no module.id needed
  /******/ 			// no module.loaded needed
  /******/ 			exports: {}
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  /******/ 		// Execute the module function
  /******/ 		__webpack_modules__[moduleId](module, module.exports, __w_pdfjs_require__);
  /******/ 	
  /******/ 		// Return the exports of the module
  /******/ 		return module.exports;
  /******/ 	}
  /******/ 	
  /************************************************************************/
  var __webpack_exports__ = {};
  // This entry need to be wrapped in an IIFE because it need to be isolated against other modules in the chunk.
  (() => {
  var exports = __webpack_exports__;
  
  
  Object.defineProperty(exports, "__esModule", ({
    value: true
  }));
  Object.defineProperty(exports, "getVerbosityLevel", ({
    enumerable: true,
    get: function () {
      return _util.getVerbosityLevel;
    }
  }));
  Object.defineProperty(exports, "setVerbosityLevel", ({
    enumerable: true,
    get: function () {
      return _util.setVerbosityLevel;
    }
  }));
  Object.defineProperty(exports, "Jbig2Image", ({
    enumerable: true,
    get: function () {
      return _jbig.Jbig2Image;
    }
  }));
  Object.defineProperty(exports, "JpegImage", ({
    enumerable: true,
    get: function () {
      return _jpg.JpegImage;
    }
  }));
  Object.defineProperty(exports, "JpxImage", ({
    enumerable: true,
    get: function () {
      return _jpx.JpxImage;
    }
  }));
  
  var _util = __w_pdfjs_require__(1);
  
  var _jbig = __w_pdfjs_require__(4);
  
  var _jpg = __w_pdfjs_require__(10);
  
  var _jpx = __w_pdfjs_require__(11);
  
  const pdfjsVersion = '2.12.17';
  const pdfjsBuild = 'e9718954b';
  })();
  
  /******/ 	return __webpack_exports__;
  /******/ })()
  ;
  });
  //# sourceMappingURL=pdf.image_decoders.js.map