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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_ | 5 #ifndef CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_ |
6 #define CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_ | 6 #define CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
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40 | 40 |
41 namespace IPC { | 41 namespace IPC { |
42 class SyncMessageFilter; | 42 class SyncMessageFilter; |
43 } | 43 } |
44 | 44 |
45 namespace media { | 45 namespace media { |
46 class VideoDecodeAccelerator; | 46 class VideoDecodeAccelerator; |
47 class VideoEncodeAccelerator; | 47 class VideoEncodeAccelerator; |
48 } | 48 } |
49 | 49 |
50 namespace cc { | 50 namespace gpu { |
51 class GpuMemoryBufferManager; | 51 class GpuMemoryBufferManager; |
52 } | 52 } |
53 | 53 |
54 namespace content { | 54 namespace content { |
55 class CommandBufferProxyImpl; | 55 class CommandBufferProxyImpl; |
56 class GpuChannelHost; | 56 class GpuChannelHost; |
57 | 57 |
58 struct GpuListenerInfo { | 58 struct GpuListenerInfo { |
59 GpuListenerInfo(); | 59 GpuListenerInfo(); |
60 ~GpuListenerInfo(); | 60 ~GpuListenerInfo(); |
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83 // IO thread. | 83 // IO thread. |
84 class GpuChannelHost : public IPC::Sender, | 84 class GpuChannelHost : public IPC::Sender, |
85 public base::RefCountedThreadSafe<GpuChannelHost> { | 85 public base::RefCountedThreadSafe<GpuChannelHost> { |
86 public: | 86 public: |
87 // Must be called on the main thread (as defined by the factory). | 87 // Must be called on the main thread (as defined by the factory). |
88 static scoped_refptr<GpuChannelHost> Create( | 88 static scoped_refptr<GpuChannelHost> Create( |
89 GpuChannelHostFactory* factory, | 89 GpuChannelHostFactory* factory, |
90 const gpu::GPUInfo& gpu_info, | 90 const gpu::GPUInfo& gpu_info, |
91 const IPC::ChannelHandle& channel_handle, | 91 const IPC::ChannelHandle& channel_handle, |
92 base::WaitableEvent* shutdown_event, | 92 base::WaitableEvent* shutdown_event, |
93 cc::GpuMemoryBufferManager* gpu_memory_buffer_manager); | 93 gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager); |
94 | 94 |
95 bool IsLost() const { | 95 bool IsLost() const { |
96 DCHECK(channel_filter_.get()); | 96 DCHECK(channel_filter_.get()); |
97 return channel_filter_->IsLost(); | 97 return channel_filter_->IsLost(); |
98 } | 98 } |
99 | 99 |
100 // The GPU stats reported by the GPU process. | 100 // The GPU stats reported by the GPU process. |
101 const gpu::GPUInfo& gpu_info() const { return gpu_info_; } | 101 const gpu::GPUInfo& gpu_info() const { return gpu_info_; } |
102 | 102 |
103 // IPC::Sender implementation: | 103 // IPC::Sender implementation: |
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129 | 129 |
130 // Destroy a command buffer created by this channel. | 130 // Destroy a command buffer created by this channel. |
131 void DestroyCommandBuffer(CommandBufferProxyImpl* command_buffer); | 131 void DestroyCommandBuffer(CommandBufferProxyImpl* command_buffer); |
132 | 132 |
133 // Add a route for the current message loop. | 133 // Add a route for the current message loop. |
134 void AddRoute(int route_id, base::WeakPtr<IPC::Listener> listener); | 134 void AddRoute(int route_id, base::WeakPtr<IPC::Listener> listener); |
135 void RemoveRoute(int route_id); | 135 void RemoveRoute(int route_id); |
136 | 136 |
137 GpuChannelHostFactory* factory() const { return factory_; } | 137 GpuChannelHostFactory* factory() const { return factory_; } |
138 | 138 |
139 cc::GpuMemoryBufferManager* gpu_memory_buffer_manager() const { | 139 gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager() const { |
140 return gpu_memory_buffer_manager_; | 140 return gpu_memory_buffer_manager_; |
141 } | 141 } |
142 | 142 |
143 // Returns a handle to the shared memory that can be sent via IPC to the | 143 // Returns a handle to the shared memory that can be sent via IPC to the |
144 // GPU process. The caller is responsible for ensuring it is closed. Returns | 144 // GPU process. The caller is responsible for ensuring it is closed. Returns |
145 // an invalid handle on failure. | 145 // an invalid handle on failure. |
146 base::SharedMemoryHandle ShareToGpuProcess( | 146 base::SharedMemoryHandle ShareToGpuProcess( |
147 base::SharedMemoryHandle source_handle); | 147 base::SharedMemoryHandle source_handle); |
148 | 148 |
149 // Reserve one unused transfer buffer ID. | 149 // Reserve one unused transfer buffer ID. |
150 int32 ReserveTransferBufferId(); | 150 int32 ReserveTransferBufferId(); |
151 | 151 |
152 // Returns a GPU memory buffer handle to the buffer that can be sent via | 152 // Returns a GPU memory buffer handle to the buffer that can be sent via |
153 // IPC to the GPU process. The caller is responsible for ensuring it is | 153 // IPC to the GPU process. The caller is responsible for ensuring it is |
154 // closed. Returns an invalid handle on failure. | 154 // closed. Returns an invalid handle on failure. |
155 gfx::GpuMemoryBufferHandle ShareGpuMemoryBufferToGpuProcess( | 155 gfx::GpuMemoryBufferHandle ShareGpuMemoryBufferToGpuProcess( |
156 gfx::GpuMemoryBufferHandle source_handle); | 156 gfx::GpuMemoryBufferHandle source_handle); |
157 | 157 |
158 // Reserve one unused image ID. | 158 // Reserve one unused image ID. |
159 int32 ReserveImageId(); | 159 int32 ReserveImageId(); |
160 | 160 |
161 // Generate a route ID guaranteed to be unique for this channel. | 161 // Generate a route ID guaranteed to be unique for this channel. |
162 int32 GenerateRouteID(); | 162 int32 GenerateRouteID(); |
163 | 163 |
164 private: | 164 private: |
165 friend class base::RefCountedThreadSafe<GpuChannelHost>; | 165 friend class base::RefCountedThreadSafe<GpuChannelHost>; |
166 GpuChannelHost(GpuChannelHostFactory* factory, | 166 GpuChannelHost(GpuChannelHostFactory* factory, |
167 const gpu::GPUInfo& gpu_info, | 167 const gpu::GPUInfo& gpu_info, |
168 cc::GpuMemoryBufferManager* gpu_memory_buffer_manager); | 168 gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager); |
169 ~GpuChannelHost() override; | 169 ~GpuChannelHost() override; |
170 void Connect(const IPC::ChannelHandle& channel_handle, | 170 void Connect(const IPC::ChannelHandle& channel_handle, |
171 base::WaitableEvent* shutdown_event); | 171 base::WaitableEvent* shutdown_event); |
172 | 172 |
173 // A filter used internally to route incoming messages from the IO thread | 173 // A filter used internally to route incoming messages from the IO thread |
174 // to the correct message loop. It also maintains some shared state between | 174 // to the correct message loop. It also maintains some shared state between |
175 // all the contexts. | 175 // all the contexts. |
176 class MessageFilter : public IPC::MessageFilter { | 176 class MessageFilter : public IPC::MessageFilter { |
177 public: | 177 public: |
178 MessageFilter(); | 178 MessageFilter(); |
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215 // - |next_image_id_|, atomic type | 215 // - |next_image_id_|, atomic type |
216 // - |next_route_id_|, atomic type | 216 // - |next_route_id_|, atomic type |
217 // - |proxies_|, protected by |context_lock_| | 217 // - |proxies_|, protected by |context_lock_| |
218 GpuChannelHostFactory* const factory_; | 218 GpuChannelHostFactory* const factory_; |
219 | 219 |
220 const gpu::GPUInfo gpu_info_; | 220 const gpu::GPUInfo gpu_info_; |
221 | 221 |
222 scoped_ptr<IPC::SyncChannel> channel_; | 222 scoped_ptr<IPC::SyncChannel> channel_; |
223 scoped_refptr<MessageFilter> channel_filter_; | 223 scoped_refptr<MessageFilter> channel_filter_; |
224 | 224 |
225 cc::GpuMemoryBufferManager* gpu_memory_buffer_manager_; | 225 gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_; |
226 | 226 |
227 // A filter for sending messages from thread other than the main thread. | 227 // A filter for sending messages from thread other than the main thread. |
228 scoped_refptr<IPC::SyncMessageFilter> sync_filter_; | 228 scoped_refptr<IPC::SyncMessageFilter> sync_filter_; |
229 | 229 |
230 // Transfer buffer IDs are allocated in sequence. | 230 // Transfer buffer IDs are allocated in sequence. |
231 base::AtomicSequenceNumber next_transfer_buffer_id_; | 231 base::AtomicSequenceNumber next_transfer_buffer_id_; |
232 | 232 |
233 // Image IDs are allocated in sequence. | 233 // Image IDs are allocated in sequence. |
234 base::AtomicSequenceNumber next_image_id_; | 234 base::AtomicSequenceNumber next_image_id_; |
235 | 235 |
236 // Route IDs are allocated in sequence. | 236 // Route IDs are allocated in sequence. |
237 base::AtomicSequenceNumber next_route_id_; | 237 base::AtomicSequenceNumber next_route_id_; |
238 | 238 |
239 // Protects proxies_. | 239 // Protects proxies_. |
240 mutable base::Lock context_lock_; | 240 mutable base::Lock context_lock_; |
241 // Used to look up a proxy from its routing id. | 241 // Used to look up a proxy from its routing id. |
242 typedef base::hash_map<int, CommandBufferProxyImpl*> ProxyMap; | 242 typedef base::hash_map<int, CommandBufferProxyImpl*> ProxyMap; |
243 ProxyMap proxies_; | 243 ProxyMap proxies_; |
244 | 244 |
245 DISALLOW_COPY_AND_ASSIGN(GpuChannelHost); | 245 DISALLOW_COPY_AND_ASSIGN(GpuChannelHost); |
246 }; | 246 }; |
247 | 247 |
248 } // namespace content | 248 } // namespace content |
249 | 249 |
250 #endif // CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_ | 250 #endif // CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_ |
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