[Bug 29047] New: [r300g] Unknown opcode DDX with RV350

[Bug 29047] New: [r300g] Unknown opcode DDX with RV350

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29047

           Summary: [r300g] Unknown opcode DDX with RV350
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: rankincj@googlemail.com


Output from piglit's glsl-derivs program:

r300 FP: Compiler Error:
r300_fragprog_emit.c::translate_rgb_opcode(): translate_rgb_opcode: Unknown
opcode DDX
Using a dummy shader instead.
If there's an 'unknown opcode' message, please file a bug report and attach
this log.
Probe at (205,125)
  Expected: 0.800000 0.400000 0.000000
  Observed: 0.000000 0.000000 0.000000

And similarly for glsl-deriv-varyings.

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[Bug 29047] [r300g] Unknown opcode DDX with RV350

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29047

Marek Olšák <maraeo@gmail.com> changed:

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

--- Comment #1 from Marek Olšák <maraeo@gmail.com> 2010-07-13 13:45:30 PDT ---
Unfortunately, this is a hardware limitation and fixing it is impossible. If
you really want this opcode, I recommend using a software rasterizer like
llvmpipe. Really, there is nothing we can do.

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[Bug 29047] [r300g] Unknown opcode DDX with RV350

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29047

--- Comment #2 from Roland Scheidegger <sroland@vmware.com> 2010-07-13 18:53:19 PDT ---
I dunno, maybe should output a bit different message for opcodes known to be
impossible to implement? That would make it more obvious it's really a hardware
limitation and not a driver bug.

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