Program Listing for File opengl-version.h

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#pragma once

#include <utility>
#include <mutex>
#include <string>

struct GPADispatchTable;

namespace gpa {
namespace gpu_utility {

// TODO(tatauis): There's duplicated code of GLVersion in TraceLayer, which should be taken from Rainier in future
// but there's no easy way to share utils code between layers, especially when one of layers is located in different repository

class GLVersion
{
public:
    using Version = std::pair<uint32_t, uint32_t>;

    struct Desc
    {
        Version version{0U, 0U};
        bool isES{false};

        bool operator==(const Desc& desc) const;
        operator bool() const;
    };

    explicit GLVersion(const GPADispatchTable& dispatchTable);

    GLVersion(const GLVersion&) = delete;
    GLVersion& operator=(const GLVersion&) = delete;

    GLVersion(GLVersion&&) noexcept = delete;
    GLVersion& operator=(GLVersion&&) noexcept = delete;

    const Version& GetVersion() const
    {
        return mDesc.version;
    }

    bool IsES() const
    {
        return mDesc.isES;
    }

    const Desc& GetDesc() const
    {
        return mDesc;
    }

    const std::string& AsString() const;

    void Reset();
    bool Update();

private:
    const GPADispatchTable& mDispatchTable;
    Desc mDesc;
    mutable std::string mVersionStr;
    std::mutex mMutex;
};

}  // namespace gpu_utility
}  // namespace gpa