ShaderCompiler.hpp

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/* This file is part of Berserk Engine project                                    */
/* https://github.com/EgorOrachyov/Berserk                                        */
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/* Copyright (c) 2018 - 2021 Egor Orachyov                                        */
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#ifndef BERSERK_SHADERCOMPILER_HPP
#define BERSERK_SHADERCOMPILER_HPP
 
#include <render/shader/Shader.hpp>
 
#include <tinyxml2.hpp>
 
BRK_NS_BEGIN
 
class ShaderCompiler final {
public:
    struct CompilationResult {
        String error;
        uint32 line{};
        Ref<Shader> shader;
    };
 
    BRK_API ShaderCompiler() = default;
    BRK_API ~ShaderCompiler() = default;
 
    BRK_API CompilationResult Compile(const String &filepath, const Ref<ShaderCompileOptions> &options);
 
private:
    bool ParseShader(tinyxml2::XMLElement *element);
    bool ParseOptions(tinyxml2::XMLElement *element);
    bool ParseParams(tinyxml2::XMLElement *element);
    bool ParseTechniques(tinyxml2::XMLElement *element);
    bool ParseTechnique(tinyxml2::XMLElement *element);
    bool ParsePass(tinyxml2::XMLElement *element);
 
    static bool ParseParamType(const char *typeName, ShaderParamType &type, RHIShaderDataType &dataType, RHIShaderParamType &paramType);
 
private:
    CompilationResult mResult;
 
    Ref<Shader> mShader;
    Ref<ShaderCompileOptions> mOptions;
    Ref<ShaderParams> mParams;
    Ref<ShaderTechnique> mTechnique;
    Ref<ShaderPass> mPass;
    std::vector<ShaderOption> mAllOptions;
    std::shared_ptr<ShaderArchetype> mArchetype{};
    uint32 mPassIndex{};
};
 
BRK_NS_END
 
#endif//BERSERK_SHADERCOMPILER_HPP