[Mesa-dev] [Bug 66213] New: Certain Mesa Demos Rendering Inverted (vertically)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Jun 26 09:45:57 PDT 2013


          Priority: medium
            Bug ID: 66213
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: Certain Mesa Demos Rendering Inverted (vertically)
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: jesus.cortezjr at gmail.com
          Hardware: Other
            Status: NEW
           Version: 9.0
         Component: Demos
           Product: Mesa

Created attachment 81483
  --> https://bugs.freedesktop.org/attachment.cgi?id=81483&action=edit
Demonstrates readpix text inversion

After upgrading to Mesa-9.0 drivers, we noticed that rendering was flipped
vertically in our application.

Upon further investigation, I found similar behavior in the following Mesa

readpix : press f, and notice the text / images being drawn upside down
tessdemo: Clicking on the mouse places a point on the correct X coordinate, but
on the opposite Y coordinate
winpos: running the example, the images are upside down.

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