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tnl: set FOGC result to (f,0,0,1)

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Fixed FDO bug 23397.
This commit is contained in:
Brian Paul
2010-01-06 17:42:53 -07:00
parent 4c45810d57
commit 8485811f10
1 changed files with 7 additions and 0 deletions
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7
src/mesa/tnl/t_vb_program.c
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@@ -390,6 +390,13 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
#endif
COPY_4V(store->results[attr].data[i], machine.Outputs[attr]);
}
/* FOGC is a special case. Fragment shader expects (f,0,0,1) */
if (program->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_FOGC)) {
store->results[VERT_RESULT_FOGC].data[i][1] = 0.0;
store->results[VERT_RESULT_FOGC].data[i][2] = 0.0;
store->results[VERT_RESULT_FOGC].data[i][3] = 1.0;
}
#ifdef NAN_CHECK
ASSERT(machine.Outputs[0][3] != 0.0F);
#endif