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content / browser / gpu / gpu_memory_buffer_manager_singleton.h [blame]
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_GPU_GPU_MEMORY_BUFFER_MANAGER_SINGLETON_H_
#define CONTENT_BROWSER_GPU_GPU_MEMORY_BUFFER_MANAGER_SINGLETON_H_
#include "base/memory/raw_ptr.h"
#include "components/viz/host/host_gpu_memory_buffer_manager.h"
#include "content/public/browser/gpu_data_manager_observer.h"
namespace content {
class GpuDataManagerImpl;
// This class ensures that there is at most one instance of
// |viz::HostGpuMemoryBufferManager| in content at any given time. Code in
// content must use this class to access the instance.
//
// With non-Ozone/X11 and Ozone/X11, the supported buffer configurations can
// only be determined at runtime, with help from the GPU process.
// GpuDataManagerObserver adds functionality for updating the supported
// configuration list when new GPUInfo is received.
class GpuMemoryBufferManagerSingleton : public viz::HostGpuMemoryBufferManager,
public GpuDataManagerObserver {
public:
explicit GpuMemoryBufferManagerSingleton(int client_id);
GpuMemoryBufferManagerSingleton(const GpuMemoryBufferManagerSingleton&) =
delete;
GpuMemoryBufferManagerSingleton& operator=(
const GpuMemoryBufferManagerSingleton&) = delete;
~GpuMemoryBufferManagerSingleton() override;
static GpuMemoryBufferManagerSingleton* GetInstance();
private:
// GpuDataManagerObserver:
void OnGpuExtraInfoUpdate() override;
raw_ptr<GpuDataManagerImpl> gpu_data_manager_impl_ = nullptr;
};
} // namespace content
#endif // CONTENT_BROWSER_GPU_GPU_MEMORY_BUFFER_MANAGER_SINGLETON_H_