[Piglit] PIGLIT_GL_VISUAL_RGBA not what it says on the tin

Jose Fonseca jfonseca at vmware.com
Fri Mar 22 01:39:42 PDT 2013

----- Original Message -----
> So I was debugging texelFetch today with multisample inside softpipe,
> when I found in non-fbo mode it was getting alpha values wrong,
> becuase
>         PIGLIT_GL_VISUAL_RGB            = 0,
>         PIGLIT_GL_VISUAL_RGBA           = 0,
> I expect someone thought that would get them an alpha visual, whereas
> you need to add PIGLIT_GL_VISUAL_ALPHA to get that.
> I expect a few other people have fallen into this hole.

Oh yes. See http://www.mail-archive.com/piglit@lists.freedesktop.org/msg02355.html .  There was no agreement on what to do exactly though.


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