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Shader: Add constant cast optimization

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This commit is contained in:
Jérôme Leclercq
2021-05-18 17:25:37 +02:00
parent e716b44aa3
commit a002d5c210
11 changed files with 342 additions and 62 deletions
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31
src/Nazara/Shader/Ast/Nodes.cpp
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@@ -29,35 +29,4 @@ namespace Nz::ShaderAst
}
#include <Nazara/Shader/Ast/AstNodeList.hpp>
ExpressionType ConstantExpression::GetExpressionType() const
{
return std::visit([&](auto&& arg) -> ShaderAst::ExpressionType
{
using T = std::decay_t<decltype(arg)>;
if constexpr (std::is_same_v<T, bool>)
return PrimitiveType::Boolean;
else if constexpr (std::is_same_v<T, float>)
return PrimitiveType::Float32;
else if constexpr (std::is_same_v<T, Int32>)
return PrimitiveType::Int32;
else if constexpr (std::is_same_v<T, UInt32>)
return PrimitiveType::UInt32;
else if constexpr (std::is_same_v<T, Vector2f>)
return VectorType{ 2, PrimitiveType::Float32 };
else if constexpr (std::is_same_v<T, Vector3f>)
return VectorType{ 3, PrimitiveType::Float32 };
else if constexpr (std::is_same_v<T, Vector4f>)
return VectorType{ 4, PrimitiveType::Float32 };
else if constexpr (std::is_same_v<T, Vector2i32>)
return VectorType{ 2, PrimitiveType::Int32 };
else if constexpr (std::is_same_v<T, Vector3i32>)
return VectorType{ 3, PrimitiveType::Int32 };
else if constexpr (std::is_same_v<T, Vector4i32>)
return VectorType{ 4, PrimitiveType::Int32 };
else
static_assert(AlwaysFalse<T>::value, "non-exhaustive visitor");
}, value);
}
}