https://bugs.winehq.org/show_bug.cgi?id=47419
--- Comment #5 from Henri Verbeet hverbeet@gmail.com --- Created attachment 64772 --> https://bugs.winehq.org/attachment.cgi?id=64772 patch
Actually, that's DDSCAPS_FLIP. In theory the attached patch should work. Perhaps it makes sense to commit that, I still have to check what native software devices return.