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// Copyright 2016 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_UI_GPU_GPU_SERVICE_H_
#define SERVICES_UI_GPU_GPU_SERVICE_H_
#include "base/callback.h"
#include "base/synchronization/waitable_event.h"
#include "base/threading/non_thread_safe.h"
#include "base/threading/thread.h"
#include "build/build_config.h"
#include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
#include "gpu/command_buffer/service/gpu_preferences.h"
#include "gpu/config/gpu_info.h"
#include "gpu/ipc/common/surface_handle.h"
#include "gpu/ipc/service/gpu_channel.h"
#include "gpu/ipc/service/gpu_channel_manager.h"
#include "gpu/ipc/service/gpu_channel_manager_delegate.h"
#include "gpu/ipc/service/gpu_config.h"
#include "gpu/ipc/service/x_util.h"
#include "mojo/public/cpp/bindings/binding_set.h"
#include "services/ui/gpu/interfaces/gpu_host.mojom.h"
#include "services/ui/gpu/interfaces/gpu_service.mojom.h"
#include "ui/gfx/native_widget_types.h"
namespace gpu {
class GpuMemoryBufferFactory;
class GpuWatchdogThread;
class SyncPointManager;
}
namespace media {
class MediaGpuChannelManager;
}
namespace ui {
class GpuMain;
// This runs in the GPU process, and communicates with the gpu host (which is
// the window server) over the mojom APIs. This is responsible for setting up
// the connection to clients, allocating/free'ing gpu memory etc.
class GpuService : public gpu::GpuChannelManagerDelegate,
public mojom::GpuService,
public base::NonThreadSafe {
public:
GpuService(const gpu::GPUInfo& gpu_info,
std::unique_ptr<gpu::GpuWatchdogThread> watchdog,
gpu::GpuMemoryBufferFactory* memory_buffer_factory,
scoped_refptr<base::SingleThreadTaskRunner> io_runner,
const gpu::GpuFeatureInfo& gpu_feature_info);
~GpuService() override;
void InitializeWithHost(mojom::GpuHostPtr gpu_host,
const gpu::GpuPreferences& preferences,
gpu::SyncPointManager* sync_point_manager = nullptr,
base::WaitableEvent* shutdown_event = nullptr);
void Bind(mojom::GpuServiceRequest request);
media::MediaGpuChannelManager* media_gpu_channel_manager() {
return media_gpu_channel_manager_.get();
}
gpu::GpuChannelManager* gpu_channel_manager() {
return gpu_channel_manager_.get();
}
gpu::GpuWatchdogThread* watchdog_thread() { return watchdog_thread_.get(); }
const gpu::GpuFeatureInfo& gpu_feature_info() const {
return gpu_feature_info_;
}
private:
friend class GpuMain;
gpu::SyncPointManager* sync_point_manager() { return sync_point_manager_; }
gpu::gles2::MailboxManager* mailbox_manager() {
return gpu_channel_manager_->mailbox_manager();
}
gl::GLShareGroup* share_group() {
return gpu_channel_manager_->share_group();
}
const gpu::GPUInfo& gpu_info() const { return gpu_info_; }
// gpu::GpuChannelManagerDelegate:
void DidCreateOffscreenContext(const GURL& active_url) override;
void DidDestroyChannel(int client_id) override;
void DidDestroyOffscreenContext(const GURL& active_url) override;
void DidLoseContext(bool offscreen,
gpu::error::ContextLostReason reason,
const GURL& active_url) override;
void StoreShaderToDisk(int client_id,
const std::string& key,
const std::string& shader) override;
#if defined(OS_WIN)
void SendAcceleratedSurfaceCreatedChildWindow(
gpu::SurfaceHandle parent_window,
gpu::SurfaceHandle child_window) override;
#endif
void SetActiveURL(const GURL& url) override;
// mojom::GpuService:
void EstablishGpuChannel(
int32_t client_id,
uint64_t client_tracing_id,
bool is_gpu_host,
const EstablishGpuChannelCallback& callback) override;
void CreateGpuMemoryBuffer(
gfx::GpuMemoryBufferId id,
const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferUsage usage,
int client_id,
gpu::SurfaceHandle surface_handle,
const CreateGpuMemoryBufferCallback& callback) override;
void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
int client_id,
const gpu::SyncToken& sync_token) override;
void GetVideoMemoryUsageStats(
const GetVideoMemoryUsageStatsCallback& callback) override;
scoped_refptr<base::SingleThreadTaskRunner> io_runner_;
// An event that will be signalled when we shutdown.
base::WaitableEvent shutdown_event_;
std::unique_ptr<gpu::GpuWatchdogThread> watchdog_thread_;
gpu::GpuMemoryBufferFactory* gpu_memory_buffer_factory_;
gpu::GpuPreferences gpu_preferences_;
// Information about the GPU, such as device and vendor ID.
gpu::GPUInfo gpu_info_;
// Information about general chrome feature support for the GPU.
gpu::GpuFeatureInfo gpu_feature_info_;
mojom::GpuHostPtr gpu_host_;
std::unique_ptr<gpu::GpuChannelManager> gpu_channel_manager_;
std::unique_ptr<media::MediaGpuChannelManager> media_gpu_channel_manager_;
// On some platforms (e.g. android webview), the SyncPointManager comes from
// external sources.
std::unique_ptr<gpu::SyncPointManager> owned_sync_point_manager_;
gpu::SyncPointManager* sync_point_manager_ = nullptr;
mojo::BindingSet<mojom::GpuService> bindings_;
DISALLOW_COPY_AND_ASSIGN(GpuService);
};
} // namespace ui
#endif // SERVICES_UI_GPU_GPU_SERVICE_H_
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