pcontribution    2499 ext/gd/libgd/gd.c 					double pcontribution;
pcontribution    2512 ext/gd/libgd/gd.c 					pcontribution = xportion * yportion;
pcontribution    2515 ext/gd/libgd/gd.c 					alpha_factor = ((gdAlphaMax - gdTrueColorGetAlpha(p))) * pcontribution;
pcontribution    2519 ext/gd/libgd/gd.c 					alpha += gdTrueColorGetAlpha (p) * pcontribution;
pcontribution    2521 ext/gd/libgd/gd.c 					contrib_sum += pcontribution;