colormap0        1389 ext/gd/libgd/gd_topal.c   JSAMPROW colormap0 = cinfo->colormap[0];
colormap0        1397 ext/gd/libgd/gd_topal.c   int *colormap0 = nim->red;
colormap0        1510 ext/gd/libgd/gd_topal.c 	    cur0 -= GETJSAMPLE (colormap0[pixcode]);