[Bug 27879] Zombie Driver becomes unresponsive mid-game with shadows enabled

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=27879

--- Comment #14 from Henri Verbeet <hverbeet at gmail.com> 2013-04-04 06:04:01 CDT ---
(In reply to comment #13)
> Maybe my patch is wrong (extra sets of eyes are appreciated), but I find it
> suspect that every texture format, including those not supporting FBO
> attachment, are claimed to support blending. ARB_internalformat_query2 spec
> text pretty much implies that FRAMEBUFFER_BLEND should be a stricter
> requirement than FRAMEBUFFER_RENDERABLE.
> 
> So (guess what) I'm blaming the drivers. I'd be happy to be proved wrong.

I can confirm GL_RGBA16 returns FULL_SUPPORT for FRAMEBUFFER_BLEND on my
GF9600M with 313.26. I can also confirm that Nouveau lists the format as
supporting blending only on Fermi and later at
http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nv50/nv50_formats.c?id=175c185941944fbfde20c08d79e83041c26a7cd5#n303

So yeah, I'd consider that a bug in nvidia's internalformat_query2
implementation. I think we'll still want internalformat_query2 support, but
once that's in this will probably be resolved UPSTREAM.

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