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| author | marha <marha@users.sourceforge.net> | 2011-05-12 10:54:06 +0000 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2011-05-12 10:54:06 +0000 |
| commit | 6355693a021ce9473196b685cc9f8c2cbb0899a8 (patch) | |
| tree | d781e4e3e935e9b3b9be7aff2a2952269b33e12a /mesalib/src/mesa/program/programopt.c | |
| parent | 0f6aea154580c2f220be98d12108dd7d316c21f6 (diff) | |
| download | vcxsrv-6355693a021ce9473196b685cc9f8c2cbb0899a8.tar.gz vcxsrv-6355693a021ce9473196b685cc9f8c2cbb0899a8.tar.bz2 vcxsrv-6355693a021ce9473196b685cc9f8c2cbb0899a8.zip | |
libxcb mesa xcb-proto git update 12 May 2011
Diffstat (limited to 'mesalib/src/mesa/program/programopt.c')
| -rw-r--r-- | mesalib/src/mesa/program/programopt.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/mesalib/src/mesa/program/programopt.c b/mesalib/src/mesa/program/programopt.c index a239da2c6..c72dfb23b 100644 --- a/mesalib/src/mesa/program/programopt.c +++ b/mesalib/src/mesa/program/programopt.c @@ -267,6 +267,11 @@ _mesa_append_fog_code(struct gl_context *ctx, return; } + if (!(fprog->Base.OutputsWritten & (1 << FRAG_RESULT_COLOR))) { + /* program doesn't output color, so nothing to do */ + return; + } + /* Alloc storage for new instructions */ newInst = _mesa_alloc_instructions(newLen); if (!newInst) { @@ -407,6 +412,7 @@ _mesa_append_fog_code(struct gl_context *ctx, fprog->Base.Instructions = newInst; fprog->Base.NumInstructions = inst - newInst; fprog->Base.InputsRead |= FRAG_BIT_FOGC; + assert(fprog->Base.OutputsWritten & (1 << FRAG_RESULT_COLOR)); } |