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| author | Kenneth Graunke <kenneth@whitecape.org> | 2016-07-21 17:42:01 -0700 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2016-07-22 20:31:20 -0700 |
| commit | 0ba7288376dc66f932336862c8a6abb629b47686 (patch) | |
| tree | 32897a11a2997c672d182798cc9de4a0932679b7 /src/compiler/nir | |
| parent | f80bea2d8066d228e78a1744d036f69a0265116e (diff) | |
| download | external_mesa3d-0ba7288376dc66f932336862c8a6abb629b47686.tar.gz external_mesa3d-0ba7288376dc66f932336862c8a6abb629b47686.tar.bz2 external_mesa3d-0ba7288376dc66f932336862c8a6abb629b47686.zip | |
nir: Lower interp_var_at_* like a normal load_var for flat inputs.
"flat centroid" and "flat sample" both just mean "flat", so we should
ignore interpolateAtCentroid/Sample and just return the flat value.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97032
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Diffstat (limited to 'src/compiler/nir')
| -rw-r--r-- | src/compiler/nir/nir_lower_io.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_lower_io.c b/src/compiler/nir/nir_lower_io.c index bf8296f5b1..b36836f6f7 100644 --- a/src/compiler/nir/nir_lower_io.c +++ b/src/compiler/nir/nir_lower_io.c @@ -340,6 +340,10 @@ lower_interpolate_at(nir_intrinsic_instr *intrin, struct lower_io_state *state, assert(var->data.mode == nir_var_shader_in); + /* Ignore interpolateAt() for flat variables - flat is flat. */ + if (var->data.interpolation == INTERP_MODE_FLAT) + return lower_load(intrin, state, NULL, offset); + nir_intrinsic_op bary_op; switch (intrin->intrinsic) { case nir_intrinsic_interp_var_at_centroid: |