Function writeBits

depends/lodepng/lodepng.cpp:432–442

LSB of value is written first, and LSB of bytes is used first */

/* LSB of value is written first, and LSB of bytes is used first */
static void writeBits(LodePNGBitWriter* writer, unsigned value, size_t nbits) {
  if(nbits == 1) { /* compiler should statically compile this case if nbits == 1 */
    WRITEBIT(writer, value);
  } else {
    /* TODO: increase output size only once here rather than in each WRITEBIT */
    size_t i;
    for(i = 0; i != nbits; ++i) {
      WRITEBIT(writer, (unsigned char)((value >> i) & 1));
    }
  }
}

/* This one is to use for adding huffman symbol, the value bits are written MSB first */
static void writeBitsReversed(LodePNGBitWriter* writer, unsigned value, size_t nbits) {