194 static int pat = 6;        /* must be less than num_bgpat */  variable
407                 pat = atoi(*argv);  in main()
408                 if (pat >= 0 && pat < num_bgpat) {  in main()
640             if (++pat >= num_bgpat)  in main()
641                 pat = 0;  in main()
1061     int invert_gradient2 = (bg[pat].type & 0x08);  in rpng2_x_load_bg_image()
1081     bgscale = (pat == 0)? 8 : bgscale_default;  in rpng2_x_load_bg_image()
1089     if ((bg[pat].type & 0x07) == 0) {  in rpng2_x_load_bg_image()
1090         uch r1_min  = rgb[bg[pat].rgb1_min].r;  in rpng2_x_load_bg_image()
1091         uch g1_min  = rgb[bg[pat].rgb1_min].g;  in rpng2_x_load_bg_image()
1092         uch b1_min  = rgb[bg[pat].rgb1_min].b;  in rpng2_x_load_bg_image()
1093         uch r2_min  = rgb[bg[pat].rgb2_min].r;  in rpng2_x_load_bg_image()
1094         uch g2_min  = rgb[bg[pat].rgb2_min].g;  in rpng2_x_load_bg_image()
1095         uch b2_min  = rgb[bg[pat].rgb2_min].b;  in rpng2_x_load_bg_image()
1096         int r1_diff = rgb[bg[pat].rgb1_max].r - r1_min;  in rpng2_x_load_bg_image()
1097         int g1_diff = rgb[bg[pat].rgb1_max].g - g1_min;  in rpng2_x_load_bg_image()
1098         int b1_diff = rgb[bg[pat].rgb1_max].b - b1_min;  in rpng2_x_load_bg_image()
1099         int r2_diff = rgb[bg[pat].rgb2_max].r - r2_min;  in rpng2_x_load_bg_image()
1100         int g2_diff = rgb[bg[pat].rgb2_max].g - g2_min;  in rpng2_x_load_bg_image()
1101         int b2_diff = rgb[bg[pat].rgb2_max].b - b2_min;  in rpng2_x_load_bg_image()
1126                   (even_odd_horiz && (bg[pat].type & 0x10));  in rpng2_x_load_bg_image()
1158     } else if ((bg[pat].type & 0x07) == 1) {  in rpng2_x_load_bg_image()
1163         r1 = rgb[bg[pat].rgb1_max].r;  in rpng2_x_load_bg_image()
1164         g1 = rgb[bg[pat].rgb1_max].g;  in rpng2_x_load_bg_image()
1165         b1 = rgb[bg[pat].rgb1_max].b;  in rpng2_x_load_bg_image()
1166         r2 = rgb[bg[pat].rgb2_max].r;  in rpng2_x_load_bg_image()
1167         g2 = rgb[bg[pat].rgb2_max].g;  in rpng2_x_load_bg_image()
1168         b2 = rgb[bg[pat].rgb2_max].b;  in rpng2_x_load_bg_image()
1192     } else if ((bg[pat].type & 0x07) == 2) {  in rpng2_x_load_bg_image()
1214         grayspot = CLIP(bg[pat].bg_gray, 1, (hh + hw));  in rpng2_x_load_bg_image()
1215         freq = MAX((double)bg[pat].bg_freq, 0.0);  in rpng2_x_load_bg_image()
1216         saturate = (double)bg[pat].bg_bsat * 0.1;  in rpng2_x_load_bg_image()
1217         rotate = (double)bg[pat].bg_brot * 0.1;  in rpng2_x_load_bg_image()
1845     int invert_gradient2 = (bg[pat].type & 0x08);  in rpng2_x_reload_bg_image()
1850     bgscale = (pat == 0)? 8 : bgscale_default;  in rpng2_x_reload_bg_image()
1858     if ((bg[pat].type & 0x07) == 0) {  in rpng2_x_reload_bg_image()
1859         uch r1_min  = rgb[bg[pat].rgb1_min].r;  in rpng2_x_reload_bg_image()
1860         uch g1_min  = rgb[bg[pat].rgb1_min].g;  in rpng2_x_reload_bg_image()
1861         uch b1_min  = rgb[bg[pat].rgb1_min].b;  in rpng2_x_reload_bg_image()
1862         uch r2_min  = rgb[bg[pat].rgb2_min].r;  in rpng2_x_reload_bg_image()
1863         uch g2_min  = rgb[bg[pat].rgb2_min].g;  in rpng2_x_reload_bg_image()
1864         uch b2_min  = rgb[bg[pat].rgb2_min].b;  in rpng2_x_reload_bg_image()
1865         int r1_diff = rgb[bg[pat].rgb1_max].r - r1_min;  in rpng2_x_reload_bg_image()
1866         int g1_diff = rgb[bg[pat].rgb1_max].g - g1_min;  in rpng2_x_reload_bg_image()
1867         int b1_diff = rgb[bg[pat].rgb1_max].b - b1_min;  in rpng2_x_reload_bg_image()
1868         int r2_diff = rgb[bg[pat].rgb2_max].r - r2_min;  in rpng2_x_reload_bg_image()
1869         int g2_diff = rgb[bg[pat].rgb2_max].g - g2_min;  in rpng2_x_reload_bg_image()
1870         int b2_diff = rgb[bg[pat].rgb2_max].b - b2_min;  in rpng2_x_reload_bg_image()
1895                   (even_odd_horiz && (bg[pat].type & 0x10));  in rpng2_x_reload_bg_image()
1927     } else if ((bg[pat].type & 0x07) == 1) {  in rpng2_x_reload_bg_image()
1932         r1 = rgb[bg[pat].rgb1_max].r;  in rpng2_x_reload_bg_image()
1933         g1 = rgb[bg[pat].rgb1_max].g;  in rpng2_x_reload_bg_image()
1934         b1 = rgb[bg[pat].rgb1_max].b;  in rpng2_x_reload_bg_image()
1935         r2 = rgb[bg[pat].rgb2_max].r;  in rpng2_x_reload_bg_image()
1936         g2 = rgb[bg[pat].rgb2_max].g;  in rpng2_x_reload_bg_image()
1937         b2 = rgb[bg[pat].rgb2_max].b;  in rpng2_x_reload_bg_image()
1961     } else if ((bg[pat].type & 0x07) == 2) {  in rpng2_x_reload_bg_image()
1979         grayspot = CLIP(bg[pat].bg_gray, 1, (hh + hw));  in rpng2_x_reload_bg_image()
1980         freq = MAX((double)bg[pat].bg_freq, 0.0);  in rpng2_x_reload_bg_image()
1981         saturate = (double)bg[pat].bg_bsat * 0.1;  in rpng2_x_reload_bg_image()
1982         rotate = (double)bg[pat].bg_brot * 0.1;  in rpng2_x_reload_bg_image()