src/dawn/native/metal/SharedTextureMemoryMTL.h

// Copyright 2023 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef SRC_DAWN_NATIVE_METAL_SHAREDTEXTUREMEMORYMTL_H_
#define SRC_DAWN_NATIVE_METAL_SHAREDTEXTUREMEMORYMTL_H_

#include <IOSurface/IOSurfaceRef.h>
#include <vector>

#include "dawn/common/CoreFoundationRef.h"
#include "dawn/native/Error.h"
#include "dawn/native/SharedTextureMemory.h"

namespace dawn::native::metal {

class Device;
class CommandRecordingContext;

class SharedTextureMemory final : public SharedTextureMemoryBase {
  public:
    static ResultOrError<Ref<SharedTextureMemory>> Create(
        Device* device,
        const char* label,
        const SharedTextureMemoryIOSurfaceDescriptor* descriptor);

    IOSurfaceRef GetIOSurface() const;

  private:
    SharedTextureMemory(Device* device,
                        const char* label,
                        const SharedTextureMemoryProperties& properties,
                        IOSurfaceRef ioSurface);
    void DestroyImpl() override;

    ResultOrError<Ref<TextureBase>> CreateTextureImpl(const TextureDescriptor* descriptor) override;
    MaybeError BeginAccessImpl(TextureBase* texture, const BeginAccessDescriptor*) override;
    ResultOrError<FenceAndSignalValue> EndAccessImpl(TextureBase* texture) override;

    CFRef<IOSurfaceRef> mIOSurface;
};

}  // namespace dawn::native::metal

#endif  // SRC_DAWN_NATIVE_METAL_SHAREDTEXTUREMEMORYMTL_H_