[Bug 29605] Theme Park World: Lobby screen is black on GeForce 4 MX

wine-bugs at winehq.org wine-bugs at winehq.org
Sat Jan 21 03:57:26 CST 2012


Henri Verbeet <hverbeet at gmail.com> changed:

           What    |Removed                     |Added
      Fixed by SHA1|                            |d1254eddb598ad2a6bddaf09ddb
                   |                            |5d73247d460cc

--- Comment #13 from Henri Verbeet <hverbeet at gmail.com> 2012-01-21 03:57:26 CST ---
(In reply to comment #12)
> Fixed in wine-1.3.37-254-g14b790a.
By d1254eddb598ad2a6bddaf09ddb5d73247d460cc then, I assume.

> Does this patch should have negative impact on performance on GeForce 4
> (because it redirects rendering to old code in Wine) 
Somewhat, but it shouldn't be major. Because we render offscreen we introduce
an extra buffer copy. That isn't free, but shouldn't be terribly expensive
either. It does affect backbuffer ORM a bit more than FBOs because offscreen
rendering is inherently less efficient with backbuffer ORM.

> and if yes then does using
> nouveau would speed up things (because Wine could use PBO on this driver)?
Maybe. The FBO path is faster than the backbuffer path. On the other hand, I'm
not sure how nouveau compares to the nvidia driver in terms of performance in
general on that hardware. I.e., if FBOs would be 10% faster than backbuffer
ORM, but nouveau would be 50% slower than the nvidia driver you'd still end up
with a net loss in performance. But I never did benchmarks between nouveau and
nvidia and I don't know if anyone else did either for that hardware.

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