[Mesa-dev] [Bug 93813] Incorrect viewport range when GL_CLIP_ORIGIN is GL_UPPER_LEFT

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93813

--- Comment #3 from Ilia Mirkin <imirkin at alum.mit.edu> ---
A bit of potentially-relevant spec quote from ARB_clip_control:

    12) Does setting the clip control origin to GL_UPPER_LEFT change the
        origin of the window coordinate system use for commands such as
        glViewport, glScissor, glWindowPos2i, and glReadPixels?

        RESOLVED:  No.

        The (x,y) window space location passed to these commands have the
        (0,0) origin at the lower left corner of the window, independent
        of the state of the clip control origin.

Still unsure whether that rules in favor of Mesa or of the test case :)
Hopefully someone more knowledgeable can weigh in.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/mesa-dev/attachments/20160122/586d230a/attachment.html>