[Mesa-dev] [Bug 93813] Incorrect viewport range when GL_CLIP_ORIGIN is GL_UPPER_LEFT
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Jan 25 10:11:03 PST 2016
https://bugs.freedesktop.org/show_bug.cgi?id=93813
--- Comment #4 from Mathias Fröhlich <Mathias.Froehlich at web.de> ---
Hi,
I can't remember why I thought there must be a minus.
Today this looks rather wrong to me ...
So I think that the proposed change to mesa is a good one.
Also I have checked out the provided test case on nvidias binary
driver which also aligns with James expected behaviour.
I believe that the piglit tests don't uses non zero y values for
the viewport. May be we want to add a test there also.
Greetings
Mathias
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