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Lines Matching defs:bit_index

428    png_uint_32 bit_index, result;
432    bit_index = x;
437          bit_index *= 3;
440          bit_index += x; /* Alpha channel */
444          bit_index += sample_index * bit_depth;
448    row += bit_index >> 3;
458    bit_index &= 7;
459    return (result >> (8-bit_index-bit_depth)) & ((1U<<bit_depth)-1);