[Bug 32096] drawStridedSlow can be more efficient

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=32096

--- Comment #7 from guillaum.bouchard at gmail.com 2012-10-30 08:11:21 CDT ---
(In reply to comment #5)
> Which GPU and Nvidia driver version are you using? GL_ARB_vertex_array_bgra is
> reported on my GTX 470 with current drivers (and I think it has been since a
> long time).

GeForce 5 FX with latest driver from Vvidia 173.14.36

> I never debugged WoW so I don't know, but is it really going through
> Draw[Indexed]PrimitiveUP?

Yes, for everything in the GUI and some really small objects (mainly the floor
and spell effects). I guess they used *UP* methods for everything quickly
moving or too small to be worth a storage in a VRAM buffer.

> Wine does not currently use VAOs (I guess caching vertex streams configurations
> in VAOs may be a performance optimization, but that's unrelated anyway). That
> piece of code is in apply_format_fixups(), which is called only on wined3d
> initialization.

Yes, I finally figured it. I called this VAO because I try to put concept I
know (ie: OpenGL) on stuff that I don't know (D3D and the wine api)

> I'm not saying that the fallback can't be improved, but I'd not expect it to be
> useful all that much. I mean, I thought GL_ARB_vertex_array_bgra support would
> be widespread.

 Perhaps I'm just annoying you with a really old GPU. If this is the case, I'm
ok to just keep my work as a private patch and apply it to wine for my own
purpose, but who know, it may helps others. I'll try to submit a clean enough
patch today or tomorrow.

-- 
Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email
Do not reply to this email, post in Bugzilla using the
above URL to reply.
------- You are receiving this mail because: -------
You are watching all bug changes.