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

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

--- Comment #12 from Roderick Colenbrander   2010-04-27 06:34:43 ---
Created an attachment (id=27576)
 --> (http://bugs.winehq.org/attachment.cgi?id=27576)
Hack

This hacky patch prevents the software fallback by using FBOs for StretchRect.
As mentioned before on my Nvidia system I see a huge performance drop after I'm
in game for lets say 10 seconds. The performance before the performance drop is
similar but the performance drop itself never occurs for me anymore. Give this
hack a try. If it works fine I'll see if I can fit in the blit_shader design
already.