opacity           938 ext/gd/libgd/gd.c 	unsigned char opacity;
opacity           985 ext/gd/libgd/gd.c 				opacity = 255;
opacity           987 ext/gd/libgd/gd.c 				opacity = (unsigned char) (p_alpha * 255.0);
opacity           989 ext/gd/libgd/gd.c 			if (!im->AA_polygon || (im->AA_opacity[py][px] < opacity)) {
opacity           990 ext/gd/libgd/gd.c 				im->AA_opacity[py][px] = opacity;