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List:       mesa3d-dev
Subject:    [Mesa3d-dev] [Bug 13835] New: glDrawBuffers implemented incorrect
From:       bugzilla-daemon () freedesktop ! org
Date:       2007-12-28 6:56:52
Message-ID: bug-13835-598 () http ! bugs ! freedesktop ! org/
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http://bugs.freedesktop.org/show_bug.cgi?id=13835

           Summary: glDrawBuffers implemented incorrect when draw to
                    GL_BACK_LEFT
           Product: Mesa
           Version: CVS
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/X11
        AssignedTo: mesa3d-dev@lists.sourceforge.net
        ReportedBy: nian.wu@intel.com
                CC: eric@anholt.net


On i965 platform, when call glDrawBuffers to draw GL_FRONT_LEFT and
GL_BACK_LEFT, then read back the pixels, pixels in GL_FRONT_LEFT buffer is as
expected, but pixels in GL_BACK_LEFT buffer is incorrect.

On i915 platform, the bug does not exist. i965 driver has not implemented the
glDrawBuffers feature(multi render target), so I think this is mesa xlib's bug.


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