64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
// Copyright (C) 2022 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
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// This file is part of the "Nazara Engine - Shader module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#pragma once
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#ifndef NAZARA_SHADER_SPIRVEXPRESSIONSTORE_HPP
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#define NAZARA_SHADER_SPIRVEXPRESSIONSTORE_HPP
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#include <Nazara/Prerequisites.hpp>
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#include <Nazara/Shader/Config.hpp>
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#include <Nazara/Shader/SpirvData.hpp>
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#include <Nazara/Shader/Ast/AstExpressionVisitorExcept.hpp>
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#include <Nazara/Shader/Ast/Enums.hpp>
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namespace Nz
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{
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class SpirvAstVisitor;
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class SpirvBlock;
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class SpirvWriter;
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class NAZARA_SHADER_API SpirvExpressionStore : public ShaderAst::AstExpressionVisitorExcept
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{
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public:
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inline SpirvExpressionStore(SpirvWriter& writer, SpirvAstVisitor& visitor, SpirvBlock& block);
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SpirvExpressionStore(const SpirvExpressionStore&) = delete;
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SpirvExpressionStore(SpirvExpressionStore&&) = delete;
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~SpirvExpressionStore() = default;
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void Store(ShaderAst::ExpressionPtr& node, UInt32 resultId);
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using AstExpressionVisitorExcept::Visit;
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void Visit(ShaderAst::AccessIndexExpression& node) override;
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void Visit(ShaderAst::SwizzleExpression& node) override;
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void Visit(ShaderAst::VariableValueExpression& node) override;
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SpirvExpressionStore& operator=(const SpirvExpressionStore&) = delete;
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SpirvExpressionStore& operator=(SpirvExpressionStore&&) = delete;
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private:
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struct Pointer
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{
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SpirvStorageClass storage;
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UInt32 pointerId;
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};
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struct SwizzledPointer : Pointer
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{
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ShaderAst::VectorType swizzledType;
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std::array<UInt32, 4> swizzleIndices;
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std::size_t componentCount;
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};
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SpirvAstVisitor& m_visitor;
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SpirvBlock& m_block;
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SpirvWriter& m_writer;
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std::variant<std::monostate, Pointer, SwizzledPointer> m_value;
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};
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}
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#include <Nazara/Shader/SpirvExpressionStore.inl>
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#endif // NAZARA_SHADER_SPIRVEXPRESSIONSTORE_HPP
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