[Bug 71789] [r300g] Visuals not found in (default) depth = 24

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri May 6 09:48:16 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=71789

--- Comment #30 from Marek Olšák <maraeo at gmail.com> ---
(In reply to Michel Dänzer from comment #29)
> That piglit sanity is failing with the patch may confirm my suspicion that
> something doesn't add up yet I'm afraid: Since the kernel driver and
> xf86-video-ati EXA code are using the same hardware formats for
> display/rendering with BE & LE, I was wondering how the patch could result
> in both display and glReadPixels working correctly for winsys buffers. Looks
> like indeed only display works correctly, which indicates that the GPU is
> effectively writing/reading PIPE_FORMAT_x8R8G8B8_* pixels like
> PIPE_FORMAT_B8G8R8x8_* (which is what the kernel driver and EXA code are
> using).

The patch is correct from the LE perspective. It simply adds ARGB support and
was tested thoroughly on LE. The side effect is that BE can use the format now
too, but there may be other issues with BE.

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