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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef SERVICES_UI_COMMON_GPU_SERVICE_H_ | |
6 #define SERVICES_UI_COMMON_GPU_SERVICE_H_ | |
7 | |
8 #include <stdint.h> | |
9 #include <vector> | |
10 | |
11 #include "base/macros.h" | |
12 #include "base/memory/ref_counted.h" | |
13 #include "base/single_thread_task_runner.h" | |
14 #include "base/synchronization/lock.h" | |
15 #include "base/synchronization/waitable_event.h" | |
16 #include "base/threading/thread.h" | |
17 #include "gpu/ipc/client/gpu_channel_host.h" | |
18 #include "services/ui/common/mojo_gpu_memory_buffer_manager.h" | |
19 #include "services/ui/common/mus_common_export.h" | |
20 #include "services/ui/public/interfaces/gpu_service.mojom.h" | |
21 | |
22 namespace shell { | |
23 class Connector; | |
24 } | |
25 | |
26 namespace ui { | |
27 | |
28 class MUS_COMMON_EXPORT GpuService : public gpu::GpuChannelHostFactory { | |
29 public: | |
30 void EstablishGpuChannel(const base::Closure& callback); | |
31 scoped_refptr<gpu::GpuChannelHost> EstablishGpuChannelSync(); | |
32 scoped_refptr<gpu::GpuChannelHost> GetGpuChannel(); | |
33 gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager() const { | |
34 return gpu_memory_buffer_manager_.get(); | |
35 } | |
36 | |
37 // The GpuService has to be initialized in the main thread before establishing | |
38 // the gpu channel. | |
39 static void Initialize(shell::Connector* connector); | |
40 // The GpuService has to be terminated in the main thread. | |
41 static void Terminate(); | |
42 static GpuService* GetInstance(); | |
43 | |
44 private: | |
45 friend struct base::DefaultSingletonTraits<GpuService>; | |
46 | |
47 explicit GpuService(shell::Connector* connector); | |
48 ~GpuService() override; | |
49 | |
50 scoped_refptr<gpu::GpuChannelHost> GetGpuChannelLocked(); | |
51 void EstablishGpuChannelOnMainThread(); | |
52 void EstablishGpuChannelOnMainThreadSyncLocked(); | |
53 void EstablishGpuChannelOnMainThreadDone( | |
54 bool locked, | |
55 int client_id, | |
56 mojom::ChannelHandlePtr channel_handle, | |
57 mojom::GpuInfoPtr gpu_info); | |
58 | |
59 // gpu::GpuChannelHostFactory overrides: | |
60 bool IsMainThread() override; | |
61 scoped_refptr<base::SingleThreadTaskRunner> GetIOThreadTaskRunner() override; | |
62 std::unique_ptr<base::SharedMemory> AllocateSharedMemory( | |
63 size_t size) override; | |
64 | |
65 scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_; | |
66 shell::Connector* connector_; | |
67 base::WaitableEvent shutdown_event_; | |
68 base::Thread io_thread_; | |
69 std::unique_ptr<MojoGpuMemoryBufferManager> gpu_memory_buffer_manager_; | |
70 | |
71 // Lock for |gpu_channel_|, |establish_callbacks_| & |is_establishing_|. | |
72 base::Lock lock_; | |
73 bool is_establishing_; | |
74 ui::mojom::GpuServicePtr gpu_service_; | |
75 scoped_refptr<gpu::GpuChannelHost> gpu_channel_; | |
76 std::vector<base::Closure> establish_callbacks_; | |
77 base::ConditionVariable establishing_condition_; | |
78 | |
79 DISALLOW_COPY_AND_ASSIGN(GpuService); | |
80 }; | |
81 | |
82 } // namespace ui | |
83 | |
84 #endif // COMPONENTS_MUS_PUBLIC_CPP_LIB_GPU_SERVICE_CONNECTION_H_ | |
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