Function decodeWindowBits

js/decode.ts:77–110

(s: State)

  }
}
function decodeWindowBits(s: State): number {
  const largeWindowEnabled: number = s.isLargeWindow;
  s.isLargeWindow = 0;
  if (s.bitOffset >= 16) {
    s.accumulator32 = (s.shortBuffer[s.halfOffset++] << 16) | (s.accumulator32 >>> 16);
    s.bitOffset -= 16;
  }
  if (readFewBits(s, 1) === 0) {
    return 16;
  }
  let n: number = readFewBits(s, 3);
  if (n !== 0) {
    return 17 + n;
  }
  n = readFewBits(s, 3);
  if (n !== 0) {
    if (n === 1) {
      if (largeWindowEnabled === 0) {
        return -1;
      }
      s.isLargeWindow = 1;
      if (readFewBits(s, 1) === 1) {
        return -1;
      }
      n = readFewBits(s, 6);
      if (n < 10 || n > 30) {
        return -1;
      }
      return n;
    }
    return 8 + n;
  }
  return 17;
}
function enableEagerOutput(s: State): number {
  if (s.runningState !== 1) {
    return makeError(s, -24);