[Bug 25916] New: floating point texture coordinates inverted

[Bug 25916] New: floating point texture coordinates inverted

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=25916

           Summary: floating point texture coordinates inverted
           Product: Mesa
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/R600
        AssignedTo: dri-devel@lists.sourceforge.net
        ReportedBy: pierre-bugzilla@ossman.eu


All floating point textures seem to get their coordinates inverted. I don't
know if this is a generic mesa bug or something specific to r600 as swrast
doesn't support float textures yet. Works fine with fglrx though.

I've confirmed the issue by using the exact same program and just switching
between a GL_RGBA16F_ARB and a GL_RGBA texture. The first gets both the s and t
coordinate inverted and the second works fine.


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[Bug 25916] floating point texture coordinates inverted

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=25916





--- Comment #1 from Alex Deucher <agd5f@yahoo.com>  2010-01-06 08:48:07 PST ---
The swizzles may be wrong for some texture formats.  See r600GetTexFormat() in
r600_texstate.c.


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[Bug 25916] floating point texture components reversed

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=25916


Pierre Ossman <pierre-bugzilla@ossman.eu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|floating point texture      |floating point texture
                   |coordinates inverted        |components reversed




--- Comment #2 from Pierre Ossman <pierre-bugzilla@ossman.eu>  2010-01-06 09:22:31 PST ---
As Alex guessed, it was a swizzling problem, not a coordinate one (the texture
I was using made the it more or less impossible to tell the difference). Patch
has been sent to Alex, and is also available here for a while:

http://pastebin.com/m72ead66


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[Bug 25916] floating point texture components reversed

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=25916


Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




--- Comment #3 from Alex Deucher <agd5f@yahoo.com>  2010-01-06 09:46:15 PST ---
pushed: c9befda13a000f7ad2221e957615c909bff279f8


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