gdAffineApplyToPointF  863 ext/gd/libgd/gd.h int gdAffineApplyToPointF (gdPointFPtr dst, const gdPointFPtr src, const double affine[6]);
gdAffineApplyToPointF 2391 ext/gd/libgd/gd_interpolation.c 				gdAffineApplyToPointF(&src_pt, &pt, inv);
gdAffineApplyToPointF 2405 ext/gd/libgd/gd_interpolation.c 				gdAffineApplyToPointF(&src_pt, &pt, inv);
gdAffineApplyToPointF 2454 ext/gd/libgd/gd_interpolation.c 		if (gdAffineApplyToPointF(&extent[i], &point, affine) != GD_TRUE) {