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| author | Samuel Iglesias Gonsálvez <[email protected]> | 2016-01-26 12:47:26 +0100 |
|---|---|---|
| committer | Samuel Iglesias Gonsálvez <[email protected]> | 2016-01-28 11:35:03 +0100 |
| commit | f9c43dd22f92cd631f7feffb362a4cd3dad06c87 (patch) | |
| tree | 1298c0ab2cfaad54d43f1a02a6cc2dc864ec56af /src/compiler | |
| parent | 3fba517bdd03551f7c7ff21dfe1896c677cbccda (diff) | |
glsl: double-precision values don't support interpolation
ARB_gpu_shader_fp64 spec says:
"This extension does not support interpolation of double-precision
values; doubles used as fragment shader inputs must be qualified as
"flat"."
Fixes the regressions added by commit 781d278:
arb_gpu_shader_fp64-double-gettransformfeedbackvarying
arb_gpu_shader_fp64-tf-interleaved
arb_gpu_shader_fp64-tf-interleaved-aligned
arb_gpu_shader_fp64-tf-separate
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93878
Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]>
Reviewed-by: Timothy Arceri <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]>
Diffstat (limited to 'src/compiler')
| -rw-r--r-- | src/compiler/glsl/link_varyings.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/compiler/glsl/link_varyings.cpp b/src/compiler/glsl/link_varyings.cpp index 264b69ca619..a4c730ffdcf 100644 --- a/src/compiler/glsl/link_varyings.cpp +++ b/src/compiler/glsl/link_varyings.cpp @@ -967,11 +967,16 @@ varying_matches::record(ir_variable *producer_var, ir_variable *consumer_var) return; } - if ((consumer_var == NULL && producer_var->type->contains_integer()) || + bool needs_flat_qualifier = consumer_var == NULL && + (producer_var->type->contains_integer() || + producer_var->type->contains_double()); + + if (needs_flat_qualifier || (consumer_stage != -1 && consumer_stage != MESA_SHADER_FRAGMENT)) { /* Since this varying is not being consumed by the fragment shader, its * interpolation type varying cannot possibly affect rendering. - * Also, this variable is non-flat and is (or contains) an integer. + * Also, this variable is non-flat and is (or contains) an integer + * or a double. * If the consumer stage is unknown, don't modify the interpolation * type as it could affect rendering later with separate shaders. * |