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spirv: Implement alpha test

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This commit is contained in:
ameerj 2021-04-14 00:32:18 -04:00
parent b126987c59
commit 6c512f4bff
3 changed files with 95 additions and 1 deletions
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36
src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
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@ -492,6 +492,37 @@ private:
u32 read_lowest{};
u32 read_highest{};
};
Shader::CompareFunction MaxwellToCompareFunction(Maxwell::ComparisonOp comparison) {
switch (comparison) {
case Maxwell::ComparisonOp::Never:
case Maxwell::ComparisonOp::NeverOld:
return Shader::CompareFunction::Never;
case Maxwell::ComparisonOp::Less:
case Maxwell::ComparisonOp::LessOld:
return Shader::CompareFunction::Less;
case Maxwell::ComparisonOp::Equal:
case Maxwell::ComparisonOp::EqualOld:
return Shader::CompareFunction::Equal;
case Maxwell::ComparisonOp::LessEqual:
case Maxwell::ComparisonOp::LessEqualOld:
return Shader::CompareFunction::LessThanEqual;
case Maxwell::ComparisonOp::Greater:
case Maxwell::ComparisonOp::GreaterOld:
return Shader::CompareFunction::Greater;
case Maxwell::ComparisonOp::NotEqual:
case Maxwell::ComparisonOp::NotEqualOld:
return Shader::CompareFunction::NotEqual;
case Maxwell::ComparisonOp::GreaterEqual:
case Maxwell::ComparisonOp::GreaterEqualOld:
return Shader::CompareFunction::GreaterThanEqual;
case Maxwell::ComparisonOp::Always:
case Maxwell::ComparisonOp::AlwaysOld:
return Shader::CompareFunction::Always;
}
UNIMPLEMENTED_MSG("Unimplemented comparison op={}", comparison);
return {};
}
} // Anonymous namespace
void PipelineCache::LoadDiskResources(u64 title_id, std::stop_token stop_loading,
@ -1016,6 +1047,11 @@ Shader::Profile PipelineCache::MakeProfile(const GraphicsPipelineCacheKey& key,
}
profile.convert_depth_mode = gl_ndc;
break;
case Shader::Stage::Fragment:
profile.alpha_test_func = MaxwellToCompareFunction(
key.state.UnpackComparisonOp(key.state.alpha_test_func.Value()));
profile.alpha_test_reference = Common::BitCast<float>(key.state.alpha_test_ref);
break;
default:
break;
}