Vrow              823 ext/gd/libgd/webpimg.c     uint8* const Vrow = V + y * uv_stride;
Vrow              827 ext/gd/libgd/webpimg.c       Vrow[x] = (((Vrow[x] - 127) * 7) >> 3) + 128;
Vrow              852 ext/gd/libgd/webpimg.c     uint8* const Vrow = V + y * uv_stride;
Vrow              856 ext/gd/libgd/webpimg.c       const int rv = (((Vrow[x] - 128) * 73) >> 6) + 128;
Vrow              858 ext/gd/libgd/webpimg.c       Vrow[x] = (rv < 0) ? 0 : (rv > 255) ? 255u : rv;