Re: [AD] blender operations SRC and DST

[Peter Wang <novalazy@xxxxxxxxxx>]

On 2011-06-08, Jon Rafkind <workmin@xxxxxxxxxx> wrote:
> That is I don't think there is a
> >> blender optimized for ADD/ALPHA/INVERSE, all the calls from
> >> scanline_drawers.c were just calling al_blend_inline.
> >>
> >> It looks like scanline_drawers.c only calls either ADD/ALPHA/INVERSE and
> >> ADD/ONE/ONE, so maybe I should make both specialized blenders?
> > I just meant add another case to make_scanline_drawers.py, which calls
> > _al_blend_alpha_inline for hardcoded values of ADD/ALPHA/INVERSE.  The
> > compiler will hopefully evaluate the switches in _al_blend_alpha_inline
> > at compile time and eliminate the unused cases.  I can make the change
> > later if you don't do it first.
> >
> 
> Ah ok I get you now. But isn't there already a case for
> ADD/ALPHA/INVERSE? I see this on make_scanline_drawers.py:144

Oops, I meant ADD/ONE/INVERSE.  I've made the change now.

Peter