http://bugs.winehq.org/show_bug.cgi?id=6210
------- Additional Comments From ivg231@gmail.com 2006-16-09 17:38 ------- The change will probably be reverted, since my patch should have been a noop cleanup. However, to get things properly working pbuffers will need to be enabled eventually - but the code needs more work.
Pbuffers are a way of doing offscreen rendering to a texture. If they're disabled, you're not rendering to a texture, but onscreen - so upside down or not, it isn't working as it should.