YUV_FRAC 91 gd/libgd/webpimg.c v = (v + (257 << (YUV_FRAC + 2 - 1))) >> (YUV_FRAC + 2); YUV_FRAC 101 gd/libgd/webpimg.c const int kRound = (1 << (YUV_FRAC - 1)) + (16 << YUV_FRAC); YUV_FRAC 104 gd/libgd/webpimg.c return (luma + kRound) >> YUV_FRAC;