coverage          638 ext/gd/libgd/gd_interpolation.c static inline int _setEdgePixel(const gdImagePtr src, unsigned int x, unsigned int y, gdFixed coverage, const int bgColor)
coverage          642 ext/gd/libgd/gd_interpolation.c 	c = c | (( (int) (gd_fxtof(gd_mulfx(coverage, f_127)) + 50.5f)) << 24);