[Bug 12453] Bad performance in Source based games

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=12453

Alexey Loukianov <mooroon2 at mail.ru> changed:

           What    |Removed                     |Added
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                 CC|                            |mooroon2 at mail.ru

--- Comment #106 from Alexey Loukianov <mooroon2 at mail.ru> 2011-09-11 17:14:02 CDT ---
Here is a lazy reminder to keep this bug "active": texture redownload for
sRGB<=>linear conversion still happen with orm=backbuffer as of Wine 1.3.28.

GL_EXT_texture_sRGB_decode driver support still sucks: 
http://feedback.wildfiregames.com/report/opengl/feature/GL_EXT_texture_sRGB_decode

What's interesting is that nVIDIA officially mentions this extension in FXAA
PDF brief when it comes to porting FXAA to the OpenGL from DX10/11. FXAA brief
I'm talking about was published towards the end of 2010. Now we're approaching
the end of 2011 and this extension is not supported by nVIDIA OpenGL ICD
neither on Windows nor on Linux.

Besides I don't get noticeable FPS drop in HL2:EP1 caused by this re-downloads
when playing with orm=backbuffer (it looks like that with orm=fbo no
re-downloads happen). It might be caused by recent changes in Wine 1.3.27 made
orm=backbuffer several times slower in general comparing to earlier versions.
This general slowdown might "mask" the slowdown caused by sRGB
redownloads/conversions.

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