<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - Antialiasing glitches visible under wine (e.g. HD4000)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=71195#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - Antialiasing glitches visible under wine (e.g. HD4000)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=71195">bug 71195</a>
from <span class="vcard"><a class="email" href="mailto:lynx.light0@googlemail.com" title="lynx.light0@googlemail.com">lynx.light0@googlemail.com</a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=71195#c7">comment #7</a>)
<span class="quote">> This appears to be the same root cause as <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [IVB] Output error with msaa when both of framebuffer and source color's alpha are not 1"
href="show_bug.cgi?id=53077">bug 53077</a>, 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 <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [IVB] Output error with msaa when both of framebuffer and source color's alpha are not 1"
href="show_bug.cgi?id=53077">bug 53077</a> ***</span >
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?</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>