[Bug 34263] Framebuffer read-before-write causes graphical glitches

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=34263

--- Comment #3 from Andrew Church <achurch+wine at achurch.org> 2013-08-14 12:31:00 CDT ---
Thanks for the note.  FWIW, I tried setting StrictDrawOrdering on unpatched
wine-1.7.0 but it doesn't seem to help much; there are perhaps fewer cases of
the wrong texture getting drawn, but the flickering is just as bad with
StrictDrawOrdering as without.  (And the benchmark performance dropped to
~2800, compared to ~3000 with the attached glFinish() patch, just as a point of
comparison.)

In case it's worth anything, it seems like the glFinish() call added by my
patch in swapchain.c affects only the flickering, and the glFinish() calls
added in surface.c affect only the wrong-texture glitches.

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