[Bug 28800] [r300c, r300g] Texture corruption with World of Warcraft

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https://bugs.freedesktop.org/show_bug.cgi?id=28800

--- Comment #2 from Chris Rankin <rankincj@xxxxxxxxxxxxxx> 2010-07-06 12:33:59 PDT ---
I tried running WoW with the RADEON_DEBUG="tex" option, and noticed that many
textures were in formats:

dxt1_rgba
dxt3_rgba
dxt5_rgba

And so because I am also using libtxc_dxtn070518.tar.gz, I moved the
libtxc_dxtn.so object out of /usr/lib and tried running WoW again. And this
time, the textures were all fine... right up until WoW crashed a few seconds
later.

>From this I conclude that:
a) Both r300c and r300g have difficulty with compressed textures, and
b) r300g also has a more serious problem with b8g8r8a8_unorm, b4g4r4a4_unorm,
b5g6r5_unorm textures (and possibly others), because these are what WoW uses
when compressed texture support isn't available.

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