text: /*
   * Extracted from pdf.js
   * https://github.com/andreasgal/pdf.js
   *
   * Copyright (c) 2011 Mozilla Foundation
   *
   * Contributors: Andreas Gal <gal@mozilla.com>
   *               Chris G Jones <cjones@mozilla.com>
   *               Shaon Barman <shaon.barman@gmail.com>
   *               Vivien Nicolas <21@vingtetun.org>
   *               Justin D'Arcangelo <justindarc@gmail.com>
   *               Yury Delendik
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   */
  
  var DecodeStream = (function() {
    function constructor() {
      this.pos = 0;
      this.bufferLength = 0;
      this.eof = false;
      this.buffer = null;
    }
  
    constructor.prototype = {
      ensureBuffer: function decodestream_ensureBuffer(requested) {
        var buffer = this.buffer;
        var current = buffer ? buffer.byteLength : 0;
        if (requested < current)
          return buffer;
        var size = 512;
        while (size < requested)
          size <<= 1;
        var buffer2 = new Uint8Array(size);
        for (var i = 0; i < current; ++i)
          buffer2[i] = buffer[i];
        return this.buffer = buffer2;
      },
      getByte: function decodestream_getByte() {
        var pos = this.pos;
        while (this.bufferLength <= pos) {
          if (this.eof)
            return null;
          this.readBlock();
        }
        return this.buffer[this.pos++];
      },
      getBytes: function decodestream_getBytes(length) {
        var pos = this.pos;
  
        if (length) {
          this.ensureBuffer(pos + length);
          var end = pos + length;
  
          while (!this.eof && this.bufferLength < end)
            this.readBlock();
  
          var bufEnd = this.bufferLength;
          if (end > bufEnd)
            end = bufEnd;
        } else {
          while (!this.eof)
            this.readBlock();
  
          var end = this.bufferLength;
        }
  
        this.pos = end;
        return this.buffer.subarray(pos, end);
      },
      lookChar: function decodestream_lookChar() {
        var pos = this.pos;
        while (this.bufferLength <= pos) {
          if (this.eof)
            return null;
          this.readBlock();
        }
        return String.fromCharCode(this.buffer[this.pos]);
      },
      getChar: function decodestream_getChar() {
        var pos = this.pos;
        while (this.bufferLength <= pos) {
          if (this.eof)
            return null;
          this.readBlock();
        }
        return String.fromCharCode(this.buffer[this.pos++]);
      },
      makeSubStream: function decodestream_makeSubstream(start, length, dict) {
        var end = start + length;
        while (this.bufferLength <= end && !this.eof)
          this.readBlock();
        return new Stream(this.buffer, start, length, dict);
      },
      skip: function decodestream_skip(n) {
        if (!n)
          n = 1;
        this.pos += n;
      },
      reset: function decodestream_reset() {
        this.pos = 0;
      }
    };
  
    return constructor;
  })();
  
  var globalObject = typeof self !== "undefined" && self || typeof window !== "undefined" && window || typeof global !== "undefined" && global ||  Function('return typeof this === "object" && this.content')() || Function('return this')();
  
  var FlateStream = globalObject.FlateStream = (function() {
    
    if (typeof Uint32Array === 'undefined') {
      return undefined;
    }
    var codeLenCodeMap = new Uint32Array([
      16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
    ]);
  
    var lengthDecode = new Uint32Array([
      0x00003, 0x00004, 0x00005, 0x00006, 0x00007, 0x00008, 0x00009, 0x0000a,
      0x1000b, 0x1000d, 0x1000f, 0x10011, 0x20013, 0x20017, 0x2001b, 0x2001f,
      0x30023, 0x3002b, 0x30033, 0x3003b, 0x40043, 0x40053, 0x40063, 0x40073,
      0x50083, 0x500a3, 0x500c3, 0x500e3, 0x00102, 0x00102, 0x00102
    ]);
  
    var distDecode = new Uint32Array([
      0x00001, 0x00002, 0x00003, 0x00004, 0x10005, 0x10007, 0x20009, 0x2000d,
      0x30011, 0x30019, 0x40021, 0x40031, 0x50041, 0x50061, 0x60081, 0x600c1,
      0x70101, 0x70181, 0x80201, 0x80301, 0x90401, 0x90601, 0xa0801, 0xa0c01,
      0xb1001, 0xb1801, 0xc2001, 0xc3001, 0xd4001, 0xd6001
    ]);
  
    var fixedLitCodeTab = [new Uint32Array([
      0x70100, 0x80050, 0x80010, 0x80118, 0x70110, 0x80070, 0x80030, 0x900c0,
      0x70108, 0x80060, 0x80020, 0x900a0, 0x80000, 0x80080, 0x80040, 0x900e0,
      0x70104, 0x80058, 0x80018, 0x90090, 0x70114, 0x80078, 0x80038, 0x900d0,
      0x7010c, 0x80068, 0x80028, 0x900b0, 0x80008, 0x80088, 0x80048, 0x900f0,
      0x70102, 0x80054, 0x80014, 0x8011c, 0x70112, 0x80074, 0x80034, 0x900c8,
      0x7010a, 0x80064, 0x80024, 0x900a8, 0x80004, 0x80084, 0x80044, 0x900e8,
      0x70106, 0x8005c, 0x8001c, 0x90098, 0x70116, 0x8007c, 0x8003c, 0x900d8,
      0x7010e, 0x8006c, 0x8002c, 0x900b8, 0x8000c, 0x8008c, 0x8004c, 0x900f8,
      0x70101, 0x80052, 0x80012, 0x8011a, 0x70111, 0x80072, 0x80032, 0x900c4,
      0x70109, 0x80062, 0x80022, 0x900a4, 0x80002, 0x80082, 0x80042, 0x900e4,
      0x70105, 0x8005a, 0x8001a, 0x90094, 0x70115, 0x8007a, 0x8003a, 0x900d4,
      0x7010d, 0x8006a, 0x8002a, 0x900b4, 0x8000a, 0x8008a, 0x8004a, 0x900f4,
      0x70103, 0x80056, 0x80016, 0x8011e, 0x70113, 0x80076, 0x80036, 0x900cc,
      0x7010b, 0x80066, 0x80026, 0x900ac, 0x80006, 0x80086, 0x80046, 0x900ec,
      0x70107, 0x8005e, 0x8001e, 0x9009c, 0x70117, 0x8007e, 0x8003e, 0x900dc,
      0x7010f, 0x8006e, 0x8002e, 0x900bc, 0x8000e, 0x8008e, 0x8004e, 0x900fc,
      0x70100, 0x80051, 0x80011, 0x80119, 0x70110, 0x80071, 0x80031, 0x900c2,
      0x70108, 0x80061, 0x80021, 0x900a2, 0x80001, 0x80081, 0x80041, 0x900e2,
      0x70104, 0x80059, 0x80019, 0x90092, 0x70114, 0x80079, 0x80039, 0x900d2,
      0x7010c, 0x80069, 0x80029, 0x900b2, 0x80009, 0x80089, 0x80049, 0x900f2,
      0x70102, 0x80055, 0x80015, 0x8011d, 0x70112, 0x80075, 0x80035, 0x900ca,
      0x7010a, 0x80065, 0x80025, 0x900aa, 0x80005, 0x80085, 0x80045, 0x900ea,
      0x70106, 0x8005d, 0x8001d, 0x9009a, 0x70116, 0x8007d, 0x8003d, 0x900da,
      0x7010e, 0x8006d, 0x8002d, 0x900ba, 0x8000d, 0x8008d, 0x8004d, 0x900fa,
      0x70101, 0x80053, 0x80013, 0x8011b, 0x70111, 0x80073, 0x80033, 0x900c6,
      0x70109, 0x80063, 0x80023, 0x900a6, 0x80003, 0x80083, 0x80043, 0x900e6,
      0x70105, 0x8005b, 0x8001b, 0x90096, 0x70115, 0x8007b, 0x8003b, 0x900d6,
      0x7010d, 0x8006b, 0x8002b, 0x900b6, 0x8000b, 0x8008b, 0x8004b, 0x900f6,
      0x70103, 0x80057, 0x80017, 0x8011f, 0x70113, 0x80077, 0x80037, 0x900ce,
      0x7010b, 0x80067, 0x80027, 0x900ae, 0x80007, 0x80087, 0x80047, 0x900ee,
      0x70107, 0x8005f, 0x8001f, 0x9009e, 0x70117, 0x8007f, 0x8003f, 0x900de,
      0x7010f, 0x8006f, 0x8002f, 0x900be, 0x8000f, 0x8008f, 0x8004f, 0x900fe,
      0x70100, 0x80050, 0x80010, 0x80118, 0x70110, 0x80070, 0x80030, 0x900c1,
      0x70108, 0x80060, 0x80020, 0x900a1, 0x80000, 0x80080, 0x80040, 0x900e1,
      0x70104, 0x80058, 0x80018, 0x90091, 0x70114, 0x80078, 0x80038, 0x900d1,
      0x7010c, 0x80068, 0x80028, 0x900b1, 0x80008, 0x80088, 0x80048, 0x900f1,
      0x70102, 0x80054, 0x80014, 0x8011c, 0x70112, 0x80074, 0x80034, 0x900c9,
      0x7010a, 0x80064, 0x80024, 0x900a9, 0x80004, 0x80084, 0x80044, 0x900e9,
      0x70106, 0x8005c, 0x8001c, 0x90099, 0x70116, 0x8007c, 0x8003c, 0x900d9,
      0x7010e, 0x8006c, 0x8002c, 0x900b9, 0x8000c, 0x8008c, 0x8004c, 0x900f9,
      0x70101, 0x80052, 0x80012, 0x8011a, 0x70111, 0x80072, 0x80032, 0x900c5,
      0x70109, 0x80062, 0x80022, 0x900a5, 0x80002, 0x80082, 0x80042, 0x900e5,
      0x70105, 0x8005a, 0x8001a, 0x90095, 0x70115, 0x8007a, 0x8003a, 0x900d5,
      0x7010d, 0x8006a, 0x8002a, 0x900b5, 0x8000a, 0x8008a, 0x8004a, 0x900f5,
      0x70103, 0x80056, 0x80016, 0x8011e, 0x70113, 0x80076, 0x80036, 0x900cd,
      0x7010b, 0x80066, 0x80026, 0x900ad, 0x80006, 0x80086, 0x80046, 0x900ed,
      0x70107, 0x8005e, 0x8001e, 0x9009d, 0x70117, 0x8007e, 0x8003e, 0x900dd,
      0x7010f, 0x8006e, 0x8002e, 0x900bd, 0x8000e, 0x8008e, 0x8004e, 0x900fd,
      0x70100, 0x80051, 0x80011, 0x80119, 0x70110, 0x80071, 0x80031, 0x900c3,
      0x70108, 0x80061, 0x80021, 0x900a3, 0x80001, 0x80081, 0x80041, 0x900e3,
      0x70104, 0x80059, 0x80019, 0x90093, 0x70114, 0x80079, 0x80039, 0x900d3,
      0x7010c, 0x80069, 0x80029, 0x900b3, 0x80009, 0x80089, 0x80049, 0x900f3,
      0x70102, 0x80055, 0x80015, 0x8011d, 0x70112, 0x80075, 0x80035, 0x900cb,
      0x7010a, 0x80065, 0x80025, 0x900ab, 0x80005, 0x80085, 0x80045, 0x900eb,
      0x70106, 0x8005d, 0x8001d, 0x9009b, 0x70116, 0x8007d, 0x8003d, 0x900db,
      0x7010e, 0x8006d, 0x8002d, 0x900bb, 0x8000d, 0x8008d, 0x8004d, 0x900fb,
      0x70101, 0x80053, 0x80013, 0x8011b, 0x70111, 0x80073, 0x80033, 0x900c7,
      0x70109, 0x80063, 0x80023, 0x900a7, 0x80003, 0x80083, 0x80043, 0x900e7,
      0x70105, 0x8005b, 0x8001b, 0x90097, 0x70115, 0x8007b, 0x8003b, 0x900d7,
      0x7010d, 0x8006b, 0x8002b, 0x900b7, 0x8000b, 0x8008b, 0x8004b, 0x900f7,
      0x70103, 0x80057, 0x80017, 0x8011f, 0x70113, 0x80077, 0x80037, 0x900cf,
      0x7010b, 0x80067, 0x80027, 0x900af, 0x80007, 0x80087, 0x80047, 0x900ef,
      0x70107, 0x8005f, 0x8001f, 0x9009f, 0x70117, 0x8007f, 0x8003f, 0x900df,
      0x7010f, 0x8006f, 0x8002f, 0x900bf, 0x8000f, 0x8008f, 0x8004f, 0x900ff
    ]), 9];
  
    var fixedDistCodeTab = [new Uint32Array([
      0x50000, 0x50010, 0x50008, 0x50018, 0x50004, 0x50014, 0x5000c, 0x5001c,
      0x50002, 0x50012, 0x5000a, 0x5001a, 0x50006, 0x50016, 0x5000e, 0x00000,
      0x50001, 0x50011, 0x50009, 0x50019, 0x50005, 0x50015, 0x5000d, 0x5001d,
      0x50003, 0x50013, 0x5000b, 0x5001b, 0x50007, 0x50017, 0x5000f, 0x00000
    ]), 5];
    
    function error(e) {
        throw new Error(e)
    }
  
    function constructor(bytes) {
      //var bytes = stream.getBytes();
      var bytesPos = 0;
  
      var cmf = bytes[bytesPos++];
      var flg = bytes[bytesPos++];
      if (cmf == -1 || flg == -1)
        error('Invalid header in flate stream');
      if ((cmf & 0x0f) != 0x08)
        error('Unknown compression method in flate stream');
      if ((((cmf << 8) + flg) % 31) != 0)
        error('Bad FCHECK in flate stream');
      if (flg & 0x20)
        error('FDICT bit set in flate stream');
  
      this.bytes = bytes;
      this.bytesPos = bytesPos;
  
      this.codeSize = 0;
      this.codeBuf = 0;
  
      DecodeStream.call(this);
    }
  
    constructor.prototype = Object.create(DecodeStream.prototype);
  
    constructor.prototype.getBits = function(bits) {
      var codeSize = this.codeSize;
      var codeBuf = this.codeBuf;
      var bytes = this.bytes;
      var bytesPos = this.bytesPos;
  
      var b;
      while (codeSize < bits) {
        if (typeof (b = bytes[bytesPos++]) == 'undefined')
          error('Bad encoding in flate stream');
        codeBuf |= b << codeSize;
        codeSize += 8;
      }
      b = codeBuf & ((1 << bits) - 1);
      this.codeBuf = codeBuf >> bits;
      this.codeSize = codeSize -= bits;
      this.bytesPos = bytesPos;
      return b;
    };
  
    constructor.prototype.getCode = function(table) {
      var codes = table[0];
      var maxLen = table[1];
      var codeSize = this.codeSize;
      var codeBuf = this.codeBuf;
      var bytes = this.bytes;
      var bytesPos = this.bytesPos;
  
      while (codeSize < maxLen) {
        var b;
        if (typeof (b = bytes[bytesPos++]) == 'undefined')
          error('Bad encoding in flate stream');
        codeBuf |= (b << codeSize);
        codeSize += 8;
      }
      var code = codes[codeBuf & ((1 << maxLen) - 1)];
      var codeLen = code >> 16;
      var codeVal = code & 0xffff;
      if (codeSize == 0 || codeSize < codeLen || codeLen == 0)
        error('Bad encoding in flate stream');
      this.codeBuf = (codeBuf >> codeLen);
      this.codeSize = (codeSize - codeLen);
      this.bytesPos = bytesPos;
      return codeVal;
    };
  
    constructor.prototype.generateHuffmanTable = function(lengths) {
      var n = lengths.length;
  
      // find max code length
      var maxLen = 0;
      for (var i = 0; i < n; ++i) {
        if (lengths[i] > maxLen)
          maxLen = lengths[i];
      }
  
      // build the table
      var size = 1 << maxLen;
      var codes = new Uint32Array(size);
      for (var len = 1, code = 0, skip = 2;
           len <= maxLen;
           ++len, code <<= 1, skip <<= 1) {
        for (var val = 0; val < n; ++val) {
          if (lengths[val] == len) {
            // bit-reverse the code
            var code2 = 0;
            var t = code;
            for (var i = 0; i < len; ++i) {
              code2 = (code2 << 1) | (t & 1);
              t >>= 1;
            }
  
            // fill the table entries
            for (var i = code2; i < size; i += skip)
              codes[i] = (len << 16) | val;
  
            ++code;
          }
        }
      }
  
      return [codes, maxLen];
    };
  
    constructor.prototype.readBlock = function() {
      function repeat(stream, array, len, offset, what) {
        var repeat = stream.getBits(len) + offset;
        while (repeat-- > 0)
          array[i++] = what;
      }
  
      // read block header
      var hdr = this.getBits(3);
      if (hdr & 1)
        this.eof = true;
      hdr >>= 1;
  
      if (hdr == 0) { // uncompressed block
        var bytes = this.bytes;
        var bytesPos = this.bytesPos;
        var b;
  
        if (typeof (b = bytes[bytesPos++]) == 'undefined')
          error('Bad block header in flate stream');
        var blockLen = b;
        if (typeof (b = bytes[bytesPos++]) == 'undefined')
          error('Bad block header in flate stream');
        blockLen |= (b << 8);
        if (typeof (b = bytes[bytesPos++]) == 'undefined')
          error('Bad block header in flate stream');
        var check = b;
        if (typeof (b = bytes[bytesPos++]) == 'undefined')
          error('Bad block header in flate stream');
        check |= (b << 8);
        if (check != (~blockLen & 0xffff))
          error('Bad uncompressed block length in flate stream');
  
        this.codeBuf = 0;
        this.codeSize = 0;
  
        var bufferLength = this.bufferLength;
        var buffer = this.ensureBuffer(bufferLength + blockLen);
        var end = bufferLength + blockLen;
        this.bufferLength = end;
        for (var n = bufferLength; n < end; ++n) {
          if (typeof (b = bytes[bytesPos++]) == 'undefined') {
            this.eof = true;
            break;
          }
          buffer[n] = b;
        }
        this.bytesPos = bytesPos;
        return;
      }
  
      var litCodeTable;
      var distCodeTable;
      if (hdr == 1) { // compressed block, fixed codes
        litCodeTable = fixedLitCodeTab;
        distCodeTable = fixedDistCodeTab;
      } else if (hdr == 2) { // compressed block, dynamic codes
        var numLitCodes = this.getBits(5) + 257;
        var numDistCodes = this.getBits(5) + 1;
        var numCodeLenCodes = this.getBits(4) + 4;
  
        // build the code lengths code table
        var codeLenCodeLengths = Array(codeLenCodeMap.length);
        var i = 0;
        while (i < numCodeLenCodes)
          codeLenCodeLengths[codeLenCodeMap[i++]] = this.getBits(3);
        var codeLenCodeTab = this.generateHuffmanTable(codeLenCodeLengths);
  
        // build the literal and distance code tables
        var len = 0;
        var i = 0;
        var codes = numLitCodes + numDistCodes;
        var codeLengths = new Array(codes);
        while (i < codes) {
          var code = this.getCode(codeLenCodeTab);
          if (code == 16) {
            repeat(this, codeLengths, 2, 3, len);
          } else if (code == 17) {
            repeat(this, codeLengths, 3, 3, len = 0);
          } else if (code == 18) {
            repeat(this, codeLengths, 7, 11, len = 0);
          } else {
            codeLengths[i++] = len = code;
          }
        }
  
        litCodeTable =
          this.generateHuffmanTable(codeLengths.slice(0, numLitCodes));
        distCodeTable =
          this.generateHuffmanTable(codeLengths.slice(numLitCodes, codes));
      } else {
        error('Unknown block type in flate stream');
      }
  
      var buffer = this.buffer;
      var limit = buffer ? buffer.length : 0;
      var pos = this.bufferLength;
      while (true) {
        var code1 = this.getCode(litCodeTable);
        if (code1 < 256) {
          if (pos + 1 >= limit) {
            buffer = this.ensureBuffer(pos + 1);
            limit = buffer.length;
          }
          buffer[pos++] = code1;
          continue;
        }
        if (code1 == 256) {
          this.bufferLength = pos;
          return;
        }
        code1 -= 257;
        code1 = lengthDecode[code1];
        var code2 = code1 >> 16;
        if (code2 > 0)
          code2 = this.getBits(code2);
        var len = (code1 & 0xffff) + code2;
        code1 = this.getCode(distCodeTable);
        code1 = distDecode[code1];
        code2 = code1 >> 16;
        if (code2 > 0)
          code2 = this.getBits(code2);
        var dist = (code1 & 0xffff) + code2;
        if (pos + len >= limit) {
          buffer = this.ensureBuffer(pos + len);
          limit = buffer.length;
        }
        for (var k = 0; k < len; ++k, ++pos)
          buffer[pos] = buffer[pos - dist];
      }
    };
  
    return constructor;
  })();
  