169 #define alpha_composite(composite, fg, alpha, bg) {               \  argument
171                 (ush)(bg)*(ush)(255 - (ush)(alpha)) + (ush)128);  \
267 } bg[] = {  variable
286 static int num_bgpat = sizeof(bg) / sizeof(struct background_pattern);
1094     int invert_gradient2 = (bg[pat].type & 0x08);  in rpng2_x_load_bg_image()
1122     if ((bg[pat].type & 0x07) == 0) {  in rpng2_x_load_bg_image()
1123         uch r1_min  = rgb[bg[pat].rgb1_min].r;  in rpng2_x_load_bg_image()
1124         uch g1_min  = rgb[bg[pat].rgb1_min].g;  in rpng2_x_load_bg_image()
1125         uch b1_min  = rgb[bg[pat].rgb1_min].b;  in rpng2_x_load_bg_image()
1126         uch r2_min  = rgb[bg[pat].rgb2_min].r;  in rpng2_x_load_bg_image()
1127         uch g2_min  = rgb[bg[pat].rgb2_min].g;  in rpng2_x_load_bg_image()
1128         uch b2_min  = rgb[bg[pat].rgb2_min].b;  in rpng2_x_load_bg_image()
1129         int r1_diff = rgb[bg[pat].rgb1_max].r - r1_min;  in rpng2_x_load_bg_image()
1130         int g1_diff = rgb[bg[pat].rgb1_max].g - g1_min;  in rpng2_x_load_bg_image()
1131         int b1_diff = rgb[bg[pat].rgb1_max].b - b1_min;  in rpng2_x_load_bg_image()
1132         int r2_diff = rgb[bg[pat].rgb2_max].r - r2_min;  in rpng2_x_load_bg_image()
1133         int g2_diff = rgb[bg[pat].rgb2_max].g - g2_min;  in rpng2_x_load_bg_image()
1134         int b2_diff = rgb[bg[pat].rgb2_max].b - b2_min;  in rpng2_x_load_bg_image()
1159                   (even_odd_horiz && (bg[pat].type & 0x10));  in rpng2_x_load_bg_image()
1191     } else if ((bg[pat].type & 0x07) == 1) {  in rpng2_x_load_bg_image()
1196         r1 = rgb[bg[pat].rgb1_max].r;  in rpng2_x_load_bg_image()
1197         g1 = rgb[bg[pat].rgb1_max].g;  in rpng2_x_load_bg_image()
1198         b1 = rgb[bg[pat].rgb1_max].b;  in rpng2_x_load_bg_image()
1199         r2 = rgb[bg[pat].rgb2_max].r;  in rpng2_x_load_bg_image()
1200         g2 = rgb[bg[pat].rgb2_max].g;  in rpng2_x_load_bg_image()
1201         b2 = rgb[bg[pat].rgb2_max].b;  in rpng2_x_load_bg_image()
1225     } else if ((bg[pat].type & 0x07) == 2) {  in rpng2_x_load_bg_image()
1247         grayspot = CLIP(bg[pat].bg_gray, 1, (hh + hw));  in rpng2_x_load_bg_image()
1248         freq = MAX((double)bg[pat].bg_freq, 0.0);  in rpng2_x_load_bg_image()
1249         saturate = (double)bg[pat].bg_bsat * 0.1;  in rpng2_x_load_bg_image()
1250         rotate = (double)bg[pat].bg_brot * 0.1;  in rpng2_x_load_bg_image()
1881     int invert_gradient2 = (bg[pat].type & 0x08);  in rpng2_x_reload_bg_image()
1894     if ((bg[pat].type & 0x07) == 0) {  in rpng2_x_reload_bg_image()
1895         uch r1_min  = rgb[bg[pat].rgb1_min].r;  in rpng2_x_reload_bg_image()
1896         uch g1_min  = rgb[bg[pat].rgb1_min].g;  in rpng2_x_reload_bg_image()
1897         uch b1_min  = rgb[bg[pat].rgb1_min].b;  in rpng2_x_reload_bg_image()
1898         uch r2_min  = rgb[bg[pat].rgb2_min].r;  in rpng2_x_reload_bg_image()
1899         uch g2_min  = rgb[bg[pat].rgb2_min].g;  in rpng2_x_reload_bg_image()
1900         uch b2_min  = rgb[bg[pat].rgb2_min].b;  in rpng2_x_reload_bg_image()
1901         int r1_diff = rgb[bg[pat].rgb1_max].r - r1_min;  in rpng2_x_reload_bg_image()
1902         int g1_diff = rgb[bg[pat].rgb1_max].g - g1_min;  in rpng2_x_reload_bg_image()
1903         int b1_diff = rgb[bg[pat].rgb1_max].b - b1_min;  in rpng2_x_reload_bg_image()
1904         int r2_diff = rgb[bg[pat].rgb2_max].r - r2_min;  in rpng2_x_reload_bg_image()
1905         int g2_diff = rgb[bg[pat].rgb2_max].g - g2_min;  in rpng2_x_reload_bg_image()
1906         int b2_diff = rgb[bg[pat].rgb2_max].b - b2_min;  in rpng2_x_reload_bg_image()
1931                   (even_odd_horiz && (bg[pat].type & 0x10));  in rpng2_x_reload_bg_image()
1963     } else if ((bg[pat].type & 0x07) == 1) {  in rpng2_x_reload_bg_image()
1968         r1 = rgb[bg[pat].rgb1_max].r;  in rpng2_x_reload_bg_image()
1969         g1 = rgb[bg[pat].rgb1_max].g;  in rpng2_x_reload_bg_image()
1970         b1 = rgb[bg[pat].rgb1_max].b;  in rpng2_x_reload_bg_image()
1971         r2 = rgb[bg[pat].rgb2_max].r;  in rpng2_x_reload_bg_image()
1972         g2 = rgb[bg[pat].rgb2_max].g;  in rpng2_x_reload_bg_image()
1973         b2 = rgb[bg[pat].rgb2_max].b;  in rpng2_x_reload_bg_image()
1997     } else if ((bg[pat].type & 0x07) == 2) {  in rpng2_x_reload_bg_image()
2015         grayspot = CLIP(bg[pat].bg_gray, 1, (hh + hw));  in rpng2_x_reload_bg_image()
2016         freq = MAX((double)bg[pat].bg_freq, 0.0);  in rpng2_x_reload_bg_image()
2017         saturate = (double)bg[pat].bg_bsat * 0.1;  in rpng2_x_reload_bg_image()
2018         rotate = (double)bg[pat].bg_brot * 0.1;  in rpng2_x_reload_bg_image()