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Shader: Add ShaderAstOptimizer

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This commit is contained in:
Jérôme Leclercq
2021-01-14 22:01:05 +01:00
parent acb998f67e
commit 00ac6e8a0a
4 changed files with 608 additions and 0 deletions
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2
include/Nazara/Shader/ShaderAstCloner.hpp
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@@ -33,6 +33,7 @@ namespace Nz
ShaderNodes::StatementPtr CloneStatement(const ShaderNodes::StatementPtr& statement);
ShaderNodes::VariablePtr CloneVariable(const ShaderNodes::VariablePtr& statement);
using ShaderAstVisitor::Visit;
void Visit(ShaderNodes::AccessMember& node) override;
void Visit(ShaderNodes::AssignOp& node) override;
void Visit(ShaderNodes::BinaryOp& node) override;
@@ -51,6 +52,7 @@ namespace Nz
void Visit(ShaderNodes::StatementBlock& node) override;
void Visit(ShaderNodes::SwizzleOp& node) override;
using ShaderVarVisitor::Visit;
void Visit(ShaderNodes::BuiltinVariable& var) override;
void Visit(ShaderNodes::InputVariable& var) override;
void Visit(ShaderNodes::LocalVariable& var) override;

50
include/Nazara/Shader/ShaderAstOptimizer.hpp Normal file
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@@ -0,0 +1,50 @@
// Copyright (C) 2020 Jérôme Leclercq
// This file is part of the "Nazara Engine - Shader generator"
// For conditions of distribution and use, see copyright notice in Config.hpp
#pragma once
#ifndef NAZARA_SHADERASTOPTIMISER_HPP
#define NAZARA_SHADERASTOPTIMISER_HPP
#include <Nazara/Prerequisites.hpp>
#include <Nazara/Shader/Config.hpp>
#include <Nazara/Shader/ShaderAstCloner.hpp>
#include <vector>
namespace Nz
{
class ShaderAst;
class NAZARA_SHADER_API ShaderAstOptimizer : public ShaderAstCloner
{
public:
ShaderAstOptimizer() = default;
ShaderAstOptimizer(const ShaderAstOptimizer&) = delete;
ShaderAstOptimizer(ShaderAstOptimizer&&) = delete;
~ShaderAstOptimizer() = default;
ShaderNodes::StatementPtr Optimise(const ShaderNodes::StatementPtr& statement);
ShaderNodes::StatementPtr Optimise(const ShaderNodes::StatementPtr& statement, const ShaderAst& shader, UInt64 enabledConditions);
ShaderAstOptimizer& operator=(const ShaderAstOptimizer&) = delete;
ShaderAstOptimizer& operator=(ShaderAstOptimizer&&) = delete;
protected:
using ShaderAstCloner::Visit;
void Visit(ShaderNodes::BinaryOp& node) override;
void Visit(ShaderNodes::Branch& node) override;
void Visit(ShaderNodes::ConditionalExpression& node) override;
void Visit(ShaderNodes::ConditionalStatement& node) override;
template<ShaderNodes::BinaryType Type> void PropagateConstant(const std::shared_ptr<ShaderNodes::Constant>& lhs, const std::shared_ptr<ShaderNodes::Constant>& rhs);
private:
const ShaderAst* m_shaderAst;
UInt64 m_enabledConditions;
};
}
#include <Nazara/Shader/ShaderAstOptimizer.inl>
#endif

12
include/Nazara/Shader/ShaderAstOptimizer.inl Normal file
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@@ -0,0 +1,12 @@
// Copyright (C) 2020 Jérôme Leclercq
// This file is part of the "Nazara Engine - Shader generator"
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Shader/ShaderAstOptimizer.hpp>
#include <Nazara/Shader/Debug.hpp>
namespace Nz
{
}
#include <Nazara/Shader/DebugOff.hpp>