[Bug 38048] Unigine Heaven 4.0 Benchmark Basic renders lots of black textures

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=38048

--- Comment #2 from Matteo Bruni <matteo.mystral at gmail.com> ---
Created attachment 50699
  --> https://bugs.winehq.org/attachment.cgi?id=50699
Hack

Thanks Béla for the bug report.

I can reproduce the issue. It turns out that Heaven is doing an UpdateTexture
from a 10-levels to a 8-levels 512x512 ATI2N texture (i.e. the latter is
missing the 2x2 and 1x1 levels). That's currently rejected by
wined3d_device_update_texture but it seems to work just fine on Windows,
notwithstanding MSDN mentioning such case as invalid. I haven't checked it but
probably the application was using a different codepath without ATI1N and ATI2N
textures before the regression patch thus not triggering this bug.

The attached patch drops the check and fixes the issue for me. It needs more
work for Wine (i.e. it might break other games as it is).

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