GrBackendSemaphorePriv.h

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/*
 * 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