http://bugs.freedesktop.org/show_bug.cgi?id=21816

           Summary: glean/vertProg1 test fails on some r300 and higher cards
           Product: Mesa
           Version: CVS
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/r300
        AssignedTo: dri-devel@lists.sourceforge.net
        ReportedBy: m.cenc...@gmail.com


The failing test is "LIT test 2 (degenerate case: 0 ^ 0 -> 1)". The z component
of output vector should contain 1.0 value and gives us 0.0.

The attached patch fixes it, but it looks like not all cards are affected.

As it was discussed on IRC it is probably not a bug, but intentional change in
HW to conform to DirectX which requires 0.0 result in this case.

This bug was created to collect some test results from different GPUs to track
down which GPUs conform to DirectX/OpenGL in this case.

Currently checked cards

OpenGL conformant:
RV350

DirectX conformant:
RV380
RV570


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