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nvc0/ir: return 0 for gl_TessCoord.z for non-triangles modes

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Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Ilia Mirkin 2016-05-21 15:41:03 -04:00
parent bdc9c20df0
commit 035b1097db
1 changed files with 4 additions and 0 deletions
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4
src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
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@ -2264,6 +2264,10 @@ NVC0LoweringPass::readTessCoord(LValue *dst, int c)
y = dst;
} else {
assert(c == 2);
if (prog->driver->prop.tp.domain != PIPE_PRIM_TRIANGLES) {
bld.mkMov(dst, bld.loadImm(NULL, 0));
return;
}
x = bld.getSSA();
y = bld.getSSA();
}