/*

 * Copyright 2023 Google LLC

 *

 * Use of this source code is governed by a BSD-style license that can be

 * found in the LICENSE file.

 */

#ifndef GrBackendSemaphorePriv_DEFINED

#define GrBackendSemaphorePriv_DEFINED

#include "include/core/SkTypes.h"

#include "include/gpu/GrBackendSemaphore.h"

enum class GrBackendApi : unsigned int;

class GrBackendSemaphoreData {

public:

    virtual ~GrBackendSemaphoreData();

#if defined(SK_DEBUG)

    virtual GrBackendApi type() const = 0;

#endif

protected:

    GrBackendSemaphoreData() = default;

    GrBackendSemaphoreData(const GrBackendSemaphoreData&) = default;

    using AnySemaphoreData = GrBackendSemaphore::AnySemaphoreData;

private:

    friend class GrBackendSemaphore;

    virtual void copyTo(AnySemaphoreData&) const = 0;

};

class GrBackendSemaphorePriv final {

public:

    template <typename SemaphoreData>

    static GrBackendSemaphore MakeGrBackendSemaphore(GrBackendApi backend,

                                                     const SemaphoreData& data) {

        return GrBackendSemaphore(backend, data);

    }

    static const GrBackendSemaphoreData* GetBackendData(const GrBackendSemaphore& sem) {

        return sem.fSemaphoreData.get();

    }

};

#endif