[Bug 22478] Major performance drop in King's Bounty games with shadows enabled

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=22478





--- Comment #19 from Roderick Colenbrander <thunderbird2k at gmail.com>  2010-04-30 10:48:07 ---
Henri mentioned that he noticed this issue as well, so I have done some
additional testing. During testing I used a patch similar the 'hack' attached
to this thread to stabilize the fps. Further I made sure I ran using
WINEDEBUG=+fps,-all. Between turning shadows on / off, I quit back to the main
menu and started a new game (this is what I did before as well).

The framerate with the ClearSurface FBO patch:
* 25-30fps with shadows=high (20% faster than before due to the
stretch_rect_fbo patch)

The framerate withou the ClearSurface FBO patch:
* 33-38fps with shadows=high

Except for the stretch_rect_fbo patch (which should be ignored for now) I do
notice a big performance difference now. I have no idea what changed (except
that this is a newer wine build but I doubt it matters). It should now be
easier to locate the cause.

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