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fix InputsRead bug in _mesa_combine_programs()

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This commit is contained in:
Brian
2007-10-30 18:26:34 -06:00
parent c1b2b97b8a
commit fb9cf48259
1 changed files with 6 additions and 2 deletions
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src/mesa/shader/program.c
+6 -2
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@@ -469,6 +469,7 @@ _mesa_combine_programs(GLcontext *ctx,
const GLuint lenB = progB->NumInstructions;
const GLuint numParamsA = _mesa_num_parameters(progA->Parameters);
const GLuint newLength = lenA + lenB;
GLbitfield inputsB;
GLuint i;
ASSERT(progA->Target == progB->Target);
@@ -498,8 +499,11 @@ _mesa_combine_programs(GLcontext *ctx,
PROGRAM_OUTPUT, FRAG_RESULT_COLR);
}
newProg->InputsRead = progA->InputsRead;
newProg->InputsRead |= (progB->InputsRead & ~(1 << FRAG_ATTRIB_COL0));
inputsB = progB->InputsRead;
if (progA->OutputsWritten & (1 << FRAG_RESULT_COLR)) {
inputsB &= ~(1 << FRAG_ATTRIB_COL0);
}
newProg->InputsRead = progA->InputsRead | inputsB;
newProg->OutputsWritten = progB->OutputsWritten;
}
else {