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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef SERVICES_VIZ_PUBLIC_CPP_GPU_CLIENT_GPU_MEMORY_BUFFER_MANAGER_H_
#define SERVICES_VIZ_PUBLIC_CPP_GPU_CLIENT_GPU_MEMORY_BUFFER_MANAGER_H_
#include <memory>
#include <set>
#include <vector>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/unsafe_shared_memory_pool.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread.h"
#include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/viz/public/mojom/gpu.mojom.h"
namespace base {
class WaitableEvent;
}
namespace gpu {
class GpuMemoryBufferSupport;
}
namespace viz {
// Implements gpu::GpuMemoryBufferManager based on a given
// mojom::GpuMemoryBufferFactory
class ClientGpuMemoryBufferManager : public gpu::GpuMemoryBufferManager {
public:
explicit ClientGpuMemoryBufferManager(
mojo::PendingRemote<mojom::GpuMemoryBufferFactory> gpu);
ClientGpuMemoryBufferManager(const ClientGpuMemoryBufferManager&) = delete;
ClientGpuMemoryBufferManager& operator=(const ClientGpuMemoryBufferManager&) =
delete;
~ClientGpuMemoryBufferManager() override;
private:
void InitThread(
mojo::PendingRemote<mojom::GpuMemoryBufferFactory> gpu_remote);
void TearDownThread();
void DisconnectGpuOnThread();
void AllocateGpuMemoryBufferOnThread(const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferUsage usage,
gfx::GpuMemoryBufferHandle* handle,
base::WaitableEvent* wait);
void OnGpuMemoryBufferAllocatedOnThread(
gfx::GpuMemoryBufferHandle* ret_handle,
base::WaitableEvent* wait,
gfx::GpuMemoryBufferHandle handle);
void DeletedGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
const gpu::SyncToken& sync_token);
// Overridden from gpu::GpuMemoryBufferManager:
std::unique_ptr<gfx::GpuMemoryBuffer> CreateGpuMemoryBuffer(
const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferUsage usage,
gpu::SurfaceHandle surface_handle,
base::WaitableEvent* shutdown_event) override;
void SetDestructionSyncToken(gfx::GpuMemoryBuffer* buffer,
const gpu::SyncToken& sync_token) override;
void CopyGpuMemoryBufferAsync(
gfx::GpuMemoryBufferHandle buffer_handle,
base::UnsafeSharedMemoryRegion memory_region,
base::OnceCallback<void(bool)> callback) override;
bool CopyGpuMemoryBufferSync(
gfx::GpuMemoryBufferHandle buffer_handle,
base::UnsafeSharedMemoryRegion memory_region) override;
int counter_ = 0;
// TODO(sad): Explore the option of doing this from an existing thread.
base::Thread thread_;
mojo::Remote<mojom::GpuMemoryBufferFactory> gpu_;
base::WeakPtr<ClientGpuMemoryBufferManager> weak_ptr_;
std::set<base::WaitableEvent*> pending_allocation_waiters_;
std::unique_ptr<gpu::GpuMemoryBufferSupport> gpu_memory_buffer_support_;
scoped_refptr<base::UnsafeSharedMemoryPool> pool_;
base::WeakPtrFactory<ClientGpuMemoryBufferManager> weak_ptr_factory_{this};
};
} // namespace viz
#endif // SERVICES_VIZ_PUBLIC_CPP_GPU_CLIENT_GPU_MEMORY_BUFFER_MANAGER_H_
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