GD_CATMULLROM    1185 ext/gd/gd.c    	REGISTER_LONG_CONSTANT("IMG_CATMULLROM", GD_CATMULLROM, CONST_CS | CONST_PERSISTENT);
GD_CATMULLROM    2506 ext/gd/libgd/gd_interpolation.c 		case GD_CATMULLROM: