Searched refs:L2INV (Results 1 – 1 of 1) sorted by relevance
734 #define L2INV 94548.46219969910586572651 /* 65536/log(2) */ macro740 return (png_uint_32)floor(.5-log(x/255.)*L2INV); in png_log8bit()748 return (png_uint_32)floor(.5-log(x/65535.)*L2INV); in png_log16bit()