Program Listing for File shader.h

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#pragma once

#include "igpa-config.h"
#include "playback/metadata-extraction/metadata-types.h"

#include <string>
#include <vector>

namespace gpa {
namespace playback {

class Shader final
{
public:
    class Compiler;

    enum class Stage {
        kInvalid,
        kVertex,
        kHull,
        kTesselationControl = kHull,
        kDomain,
        kTesselationEvaluation = kDomain,
        kGeometry,
        kAmplification,
        kMesh,
        kFragment,
        kCompute,
        kLibrary,
        kCount,
    };

    class CompileInfo final
    {
    public:
        Stage stage{Stage::kInvalid};
        api_types::ManagedShaderSource sourceCode;
        std::vector<uint8_t> byteCode;
        std::string shaderProfile;
        void* shaderData{nullptr};
    };

    bool operator==(Shader const& other) const;

    bool operator!=(Shader const& other) const;

    bool operator<(Shader const& other) const;

    Shader::Stage GetStage() const;

    api_types::ShaderLanguage GetLanguage() const;

    void GetSourceCode(size_t* pSizeBytes, char* pSourceCode) const;

    void GetEntryPoint(size_t* pSizeBytes, char* pEntryPoint) const;

    void GetByteCode(size_t* pSizeBytes, uint8_t* pByteCode) const;

    uint32_t GetHash() const;

private:
    Shader::Stage mStage{Shader::Stage::kInvalid};
    api_types::ShaderLanguage mLanguage{api_types::GPA_SHADER_LANGUAGE_UNKNOWN};
    std::string mSourceCode;
    std::string mEntryPoint;
    std::vector<uint8_t> mByteCode;
    uint32_t mHash{0};
};

}  // namespace playback
}  // namespace gpa

namespace std {

template<>
struct hash<gpa::playback::Shader>
{
    inline size_t operator()(gpa::playback::Shader const& shader) const
    {
        return (size_t)shader.GetHash();
    }
};

}  // namespace std