[Bug 71195] Antialiasing glitches visible under wine (e.g. HD4000)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71195

--- Comment #8 from lynx.light0 at googlemail.com ---
(In reply to comment #7)
> This appears to be the same root cause as bug 53077, which was discovered
> and diagnosed back in 2012 but never fixed.
> 
> I've got some experimental code which fixes the problem, but it still needs
> polishing.  I hope to have a fix out to the mailing list by the end of the
> day.
> 
> *** This bug has been marked as a duplicate of bug 53077 ***

Wow, I'm impressed by the rapid response. I wonder whether the involvement with
the framebuffer ties in my finding that, under wine, using the registry fix:

      |  +->OffscreenRenderingMode
      |  |   [Select the offscreen rendering implementation.
      |  |        backbuffer - Render offscreen render targets in the
backbuffer
      |  |        fbo - Use framebuffer objects for offscreen rendering
(default)

to thereby select 'backbuffer', as opposed to framebuffer, resulted in the
problem going away. Unfortuntately however under Wine this resulted in two
overlayed images wherein one of the two is rendered upside down(!). This may be
completely irrelevant. 

I wonder whether Intel have commented on the matter?

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