/* Determine the necessary scaling factor to avoid quality degradation in
the center of the screen. */
/* Determine the necessary scaling factor to avoid quality degradation in
the center of the screen. */
float vert_oversize = distort(1.25f*fill_factor)/(1.25f*fill_factor);
oversize = min(horiz_oversize, vert_oversize);
float vert_oversize = distort(1.25f*fill_factor)/(1.25f*fill_factor);
oversize = min(horiz_oversize, vert_oversize);