alpha_sum        2481 ext/gd/libgd/gd.c 			double alpha_factor, alpha_sum = 0.0, contrib_sum = 0.0;
alpha_sum        2522 ext/gd/libgd/gd.c 					alpha_sum += alpha_factor;
alpha_sum        2541 ext/gd/libgd/gd.c 			if ( alpha_sum != 0.0f) {
alpha_sum        2543 ext/gd/libgd/gd.c 					alpha_sum /= contrib_sum;
alpha_sum        2545 ext/gd/libgd/gd.c 				red /= alpha_sum;
alpha_sum        2546 ext/gd/libgd/gd.c 				green /= alpha_sum;
alpha_sum        2547 ext/gd/libgd/gd.c 				blue /= alpha_sum;