Function readComplexHuffmanCode

js/decode.ts:422–453

(alphabetSizeLimit: number, skip: number, tableGroup: Int32Array, tableIdx: number, s: State)

  return buildHuffmanTable(tableGroup, tableIdx, 8, codeLengths, alphabetSizeLimit);
}
function readComplexHuffmanCode(alphabetSizeLimit: number, skip: number, tableGroup: Int32Array, tableIdx: number, s: State): number {
  const codeLengths = new Int32Array(alphabetSizeLimit);
  const codeLengthCodeLengths = new Int32Array(18);
  let space = 32;
  let numCodes = 0;
  for (let i: number = skip; i < 18; ++i) {
    const codeLenIdx: number = CODE_LENGTH_CODE_ORDER[i];
    if (s.bitOffset >= 16) {
      s.accumulator32 = (s.shortBuffer[s.halfOffset++] << 16) | (s.accumulator32 >>> 16);
      s.bitOffset -= 16;
    }
    const p: number = (s.accumulator32 >>> s.bitOffset) & 15;
    s.bitOffset += FIXED_TABLE[p] >> 16;
    const v: number = FIXED_TABLE[p] & 0xFFFF;
    codeLengthCodeLengths[codeLenIdx] = v;
    if (v !== 0) {
      space -= 32 >> v;
      numCodes++;
      if (space <= 0) {
        break;
      }
    }
  }
  if (space !== 0 && numCodes !== 1) {
    return makeError(s, -4);
  }
  const result: number = readHuffmanCodeLengths(codeLengthCodeLengths, alphabetSizeLimit, codeLengths, s);
  if (result < 0) {
    return result;
  }
  return buildHuffmanTable(tableGroup, tableIdx, 8, codeLengths, alphabetSizeLimit);
}
function readHuffmanCode(alphabetSizeMax: number, alphabetSizeLimit: number, tableGroup: Int32Array, tableIdx: number, s: State): number {
  if (s.halfOffset > 2030) {
    const result: number = readMoreInput(s);