[Mesa-dev] [PATCH] main/base_tex_format: Properly handle STENCIL_INDEX1/4/16

[Jason Ekstrand]

On Mon, Mar 2, 2015 at 11:33 AM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:

> On Mon, Mar 2, 2015 at 2:32 PM, Jason Ekstrand <jason at jlekstrand.net>
> wrote:
> >
> >
> > On Mon, Mar 2, 2015 at 11:18 AM, Ilia Mirkin <imirkin at alum.mit.edu>
> wrote:
> >>
> >> Hmmm... I was just looking at this code in connection to attepmting to
> >> enable ARB_texture_stencil8, and it _seems_ like that should be if
> >> (ARB_texture_stencil8) -- I didn't see what in ARB_stencil_texturing
> >> had to do with being able to have a GL_STENCIL_INDEX* internal
> >> format...
> >
> >
> > I just pushed it because it does fix a bug...  However, you do raise a
> good
> > point.  Maybe we should change the i965 driver to use GL_STENCIL_INDEX
> for
> > the internal format for our internal stencil buffers.
>
> How do you end up with a GL_STENCIL_INDEX internal format in the first
> place? Without ARB_texture_stencil8 that's not a thing, is it?
>

We're using it internally for doing stencil blits.  I'm going to Cc Neil
and he can explain what's going on there better than I can as he was the
one who wrote most of that code.
--Jason
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/mesa-dev/attachments/20150302/0c31c992/attachment.html>