Re: [Mesa3d-dev] [PATCH] st/dri: don't enable EXT_draw_buffers2 by default

[Marek O. <ma...@gm...>]

On Mon, Feb 22, 2010 at 4:23 PM, Brian Paul <bri...@gm...> wrote:

> On Sun, Feb 21, 2010 at 8:00 AM, Marek Olšák <ma...@gm...> wrote:
> > Hi,
> >
> > the attached patch modifies st/dri to not enable EXT_draw_buffers2 by
> > default because r300g and most probably even some other drivers can't
> > support this extension. The drivers reporting support of
> > PIPE_CAP_INDEP_BLEND_ENABLE are not affected by this patch.
> >
> > Please review.
>
> Hmm, I believe the extensions listed in dri_extensions.c are those
> that _may_ be supported by drivers.  But its the st_extensions.c code
> that queries the driver for various caps (such as
> PIPE_CAP_INDEP_BLEND_ENABLE) and then turns on the extension if
> applicable.
>

I stand corrected.


>
> Is GL_EXT_draw_buffers2 really being advertised by glxinfo with r300g?
>

Unfortunately yes, it is.

-Marek