src/dawn/native/d3d/SharedTextureMemoryD3D.h

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#ifndef SRC_DAWN_NATIVE_D3D_SHARED_TEXTURE_MEMORY_D3D_H_
#define SRC_DAWN_NATIVE_D3D_SHARED_TEXTURE_MEMORY_D3D_H_

#include "dawn/native/SharedTextureMemory.h"
#include "dawn/native/d3d/d3d_platform.h"

namespace dawn::native::d3d {

class Device;

class SharedTextureMemory : public SharedTextureMemoryBase {
  protected:
    SharedTextureMemory(Device* device,
                        const char* label,
                        SharedTextureMemoryProperties properties,
                        IUnknown* resource);

  protected:
    MaybeError BeginAccessImpl(TextureBase* texture,
                               const BeginAccessDescriptor* descriptor) override;
    ResultOrError<FenceAndSignalValue> EndAccessImpl(TextureBase* texture) override;

  private:
    virtual ResultOrError<Ref<SharedFenceBase>> CreateFenceImpl(
        const SharedFenceDXGISharedHandleDescriptor* desc) = 0;

    // If the resource has IDXGIKeyedMutex interface, it will be used for synchronization.
    // TODO(dawn:1906): remove the mDXGIKeyedMutex when it is not used in chrome.
    ComPtr<IDXGIKeyedMutex> mDXGIKeyedMutex;
    // Chrome uses 0 as acquire key.
    static constexpr UINT64 kDXGIKeyedMutexAcquireKey = 0;
};

}  // namespace dawn::native::d3d

#endif  // SRC_DAWN_NATIVE_D3D_SHARED_TEXTURE_MEMORY_D3D_H_