Method readSymbol

src/main/java/org/htmlunit/util/brotli/Decode.java:413–428

Decodes the next Huffman code from bit-stream.

(int[] tableGroup, int tableIdx, State s)

   * Decodes the next Huffman code from bit-stream.
   */
  private static int readSymbol(int[] tableGroup, int tableIdx, State s) {
    int offset = tableGroup[tableIdx];
    final int v = BitReader.peekBits(s);
    offset += v & HUFFMAN_TABLE_MASK;
    final int bits = tableGroup[offset] >> 16;
    final int sym = tableGroup[offset] & 0xFFFF;
    if (bits <= HUFFMAN_TABLE_BITS) {
      s.bitOffset += bits;
      return sym;
    }
    offset += sym;
    final int mask = (1 << bits) - 1;
    offset += Utils.shr32(v & mask, HUFFMAN_TABLE_BITS);
    s.bitOffset += ((tableGroup[offset] >> 16) + HUFFMAN_TABLE_BITS);
    return tableGroup[offset] & 0xFFFF;
  }

  private static int readBlockLength(int[] tableGroup, int tableIdx, State s) {
    BitReader.fillBitWindow(s);