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authormarha <marha@users.sourceforge.net>2011-05-12 11:03:26 +0000
committermarha <marha@users.sourceforge.net>2011-05-12 11:03:26 +0000
commit3e9b8f0b0c2c4a0fdde2013a5445ebce9c344dd4 (patch)
treeb42afb31d05c2de227d17a076cdf58267e4d57b9 /mesalib/src/mesa/program
parentf871d84ccfff423c34259024eaccc61e475cea6b (diff)
parent6355693a021ce9473196b685cc9f8c2cbb0899a8 (diff)
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merge ^/branches/released .
Diffstat (limited to 'mesalib/src/mesa/program')
-rw-r--r--mesalib/src/mesa/program/programopt.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/mesalib/src/mesa/program/programopt.c b/mesalib/src/mesa/program/programopt.c
index a01252dab..62b406653 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));
}