[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 #5 from Roderick Colenbrander <thunderbird2k at gmail.com>  2010-04-25 14:56:37 ---
(In reply to comment #3)
> I think the demo of KB: Armored Princess contains Starforce, that's why it
> doesn't start in Wine, but it would be a good "benchmark" for this issue,
> because it has an animated background in the menu.
> 
> As for KB: The Legend, the slowdown can be seen right in the tutorial, when you
> start a new game. With shadows disabled both 1.1.42 and 1.1.43 gives nearly the
> same performance. The difference is visible when shadows are on 'normal'
> setting: with 1.1.42, well, it's slightly below the playable level on my
> hardware. With 1.1.43 the situation relapsed: as if I could see still images.
> I guess the issue is more noticeable for me, because of my low-end hardware.
> I used 'normal' settings in every graphical options, with FSAA disabled.
> 
> Anyway, does it matter if I compiled 1.1.43 with cflags -O0 this time? 1.1.42
> was compiled with the default -O2. Might it cause the performance loss when
> shadows are enabled?

Well compiling without these optimizations can matter but only if the game is
cpu limited. Since recompiling Wine is easy, give it a try anyway. I'll take a
closer look at the demo and write down some performance numbers.

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