chromium/gpu/command_buffer/service/shared_image/compound_image_backing.h

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_COMPOUND_IMAGE_BACKING_H_
#define GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_COMPOUND_IMAGE_BACKING_H_

#include "base/containers/enum_set.h"
#include "base/memory/scoped_refptr.h"
#include "gpu/command_buffer/common/mailbox.h"
#include "gpu/command_buffer/common/shared_image_usage.h"
#include "gpu/command_buffer/service/memory_tracking.h"
#include "gpu/command_buffer/service/shared_image/shared_image_backing.h"
#include "gpu/command_buffer/service/shared_image/shared_image_manager.h"
#include "gpu/command_buffer/service/shared_image/shared_image_representation.h"
#include "gpu/command_buffer/service/shared_image/shared_memory_image_backing.h"
#include "gpu/command_buffer/service/shared_memory_region_wrapper.h"
#include "gpu/gpu_gles2_export.h"
#include "gpu/ipc/common/surface_handle.h"
#include "ui/gfx/color_space.h"
#include "ui/gfx/geometry/size.h"

namespace gpu {

class SharedImageBackingFactory;

// TODO(kylechar): Merge with OzoneImageBacking::AccessStream enum.
enum class SharedImageAccessStream { … };

// Used to represent what access streams a backing can be used for.
AccessStreamSet;

// A compound backing that combines a shared memory backing and real GPU
// backing. The real GPU backing must implement `UploadFromMemory()` and not
// have its own shared memory segment.
// TODO(crbug.com/40213543): Support multiple GPU backings.
class GPU_GLES2_EXPORT CompoundImageBacking : public SharedImageBacking { … };

}  // namespace gpu

#endif  // GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_COMPOUND_IMAGE_BACKING_H_