http://bugs.winehq.org/show_bug.cgi?id=27524
--- Comment #5 from Matteo Bruni matteo.mystral@gmail.com 2011-06-20 18:43:46 CDT --- Created an attachment (id=35218) --> (http://bugs.winehq.org/attachment.cgi?id=35218) Rough fix
First of all, thanks for the bug report. I can reproduce the bug only with the (non-default) "backbuffer" OffscreenRenderingMode. Assuming that nothing blocks you from using the default "fbo" mode, can you confirm that you experience the bug only with backbuffer? I want to make sure I'm tacking the right bug...
In any case, the attached patch fixes the issue I get in backbuffer ORM mode.