OLD | NEW |
1 // Copyright (c) 2016 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2016 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 #include "gpu/ipc/service/gpu_vsync_provider.h" | 5 #include "gpu/ipc/service/gpu_vsync_provider_win.h" |
6 | 6 |
7 #include <string> | 7 #include <string> |
8 | 8 |
9 #include "base/atomicops.h" | 9 #include "base/atomicops.h" |
10 #include "base/strings/stringprintf.h" | 10 #include "base/strings/stringprintf.h" |
11 #include "base/threading/thread.h" | 11 #include "base/threading/thread.h" |
12 #include "base/trace_event/trace_event.h" | 12 #include "base/trace_event/trace_event.h" |
| 13 #include "gpu/ipc/common/gpu_messages.h" |
| 14 #include "ipc/ipc_message_macros.h" |
| 15 #include "ipc/message_filter.h" |
| 16 #include "ui/gl/vsync_provider_win.h" |
13 | 17 |
14 #include <windows.h> | 18 #include <windows.h> |
15 | 19 |
16 namespace gpu { | 20 namespace gpu { |
17 | 21 |
18 namespace { | 22 namespace { |
19 // from <D3dkmthk.h> | 23 // from <D3dkmthk.h> |
20 typedef LONG NTSTATUS; | 24 typedef LONG NTSTATUS; |
21 typedef UINT D3DKMT_HANDLE; | 25 typedef UINT D3DKMT_HANDLE; |
22 typedef UINT D3DDDI_VIDEO_PRESENT_SOURCE_ID; | 26 typedef UINT D3DDDI_VIDEO_PRESENT_SOURCE_ID; |
(...skipping 19 matching lines...) Expand all Loading... |
42 | 46 |
43 typedef NTSTATUS(APIENTRY* PFND3DKMTOPENADAPTERFROMHDC)( | 47 typedef NTSTATUS(APIENTRY* PFND3DKMTOPENADAPTERFROMHDC)( |
44 D3DKMT_OPENADAPTERFROMHDC*); | 48 D3DKMT_OPENADAPTERFROMHDC*); |
45 typedef NTSTATUS(APIENTRY* PFND3DKMTCLOSEADAPTER)(D3DKMT_CLOSEADAPTER*); | 49 typedef NTSTATUS(APIENTRY* PFND3DKMTCLOSEADAPTER)(D3DKMT_CLOSEADAPTER*); |
46 typedef NTSTATUS(APIENTRY* PFND3DKMTWAITFORVERTICALBLANKEVENT)( | 50 typedef NTSTATUS(APIENTRY* PFND3DKMTWAITFORVERTICALBLANKEVENT)( |
47 D3DKMT_WAITFORVERTICALBLANKEVENT*); | 51 D3DKMT_WAITFORVERTICALBLANKEVENT*); |
48 } // namespace | 52 } // namespace |
49 | 53 |
50 // The actual implementation of background tasks plus any state that might be | 54 // The actual implementation of background tasks plus any state that might be |
51 // needed on the worker thread. | 55 // needed on the worker thread. |
52 class GpuVSyncWorker : public base::Thread { | 56 class GpuVSyncWorker : public base::Thread, |
| 57 public base::RefCountedThreadSafe<GpuVSyncWorker> { |
53 public: | 58 public: |
54 GpuVSyncWorker(const GpuVSyncProvider::VSyncCallback& callback, | 59 GpuVSyncWorker(const gfx::VSyncProvider::UpdateVSyncCallback& callback, |
55 SurfaceHandle surface_handle); | 60 SurfaceHandle surface_handle); |
56 ~GpuVSyncWorker() override; | |
57 | 61 |
| 62 void CleanupAndStop(); |
58 void Enable(bool enabled); | 63 void Enable(bool enabled); |
59 void StartRunningVSyncOnThread(); | 64 void StartRunningVSyncOnThread(); |
60 void WaitForVSyncOnThread(); | 65 void WaitForVSyncOnThread(); |
61 void SendVSyncUpdate(base::TimeTicks timestamp); | 66 void SendVSyncUpdate(base::TimeTicks now, |
| 67 base::TimeTicks timestamp, |
| 68 base::TimeDelta interval); |
| 69 bool BelongsToWorkerThread(); |
62 | 70 |
63 private: | 71 private: |
| 72 friend class base::RefCountedThreadSafe<GpuVSyncWorker>; |
| 73 ~GpuVSyncWorker() override; |
| 74 |
64 void Reschedule(); | 75 void Reschedule(); |
65 void OpenAdapter(const wchar_t* device_name); | 76 void OpenAdapter(const wchar_t* device_name); |
66 void CloseAdapter(); | 77 void CloseAdapter(); |
67 bool WaitForVBlankEvent(); | 78 bool WaitForVBlankEvent(); |
68 | 79 |
69 // Specifies whether background tasks are running. | 80 // Specifies whether background tasks are running. |
70 // This can be set on background thread only. | 81 // This can be set on background thread only. |
71 bool running_ = false; | 82 bool running_ = false; |
72 | 83 |
73 // Specified whether the worker is enabled. This is accessed from both | 84 // Specified whether the worker is enabled. This is accessed from both |
74 // threads but can be changed on the main thread only. | 85 // threads but can be changed on the main thread only. |
75 base::subtle::AtomicWord enabled_ = false; | 86 base::subtle::AtomicWord enabled_ = false; |
76 | 87 |
77 const GpuVSyncProvider::VSyncCallback callback_; | 88 const gfx::VSyncProvider::UpdateVSyncCallback callback_; |
78 const SurfaceHandle surface_handle_; | 89 const SurfaceHandle surface_handle_; |
79 | 90 |
| 91 // The actual timing and interval comes from the nested provider. |
| 92 std::unique_ptr<gl::VSyncProviderWin> vsync_provider_; |
| 93 |
80 PFND3DKMTOPENADAPTERFROMHDC open_adapter_from_hdc_ptr_; | 94 PFND3DKMTOPENADAPTERFROMHDC open_adapter_from_hdc_ptr_; |
81 PFND3DKMTCLOSEADAPTER close_adapter_ptr_; | 95 PFND3DKMTCLOSEADAPTER close_adapter_ptr_; |
82 PFND3DKMTWAITFORVERTICALBLANKEVENT wait_for_vertical_blank_event_ptr_; | 96 PFND3DKMTWAITFORVERTICALBLANKEVENT wait_for_vertical_blank_event_ptr_; |
83 | 97 |
84 std::wstring current_device_name_; | 98 std::wstring current_device_name_; |
85 D3DKMT_HANDLE current_adapter_handle_ = 0; | 99 D3DKMT_HANDLE current_adapter_handle_ = 0; |
86 D3DDDI_VIDEO_PRESENT_SOURCE_ID current_source_id_ = 0; | 100 D3DDDI_VIDEO_PRESENT_SOURCE_ID current_source_id_ = 0; |
87 }; | 101 }; |
88 | 102 |
89 GpuVSyncWorker::GpuVSyncWorker(const GpuVSyncProvider::VSyncCallback& callback, | 103 GpuVSyncWorker::GpuVSyncWorker( |
90 SurfaceHandle surface_handle) | 104 const gfx::VSyncProvider::UpdateVSyncCallback& callback, |
| 105 SurfaceHandle surface_handle) |
91 : base::Thread(base::StringPrintf("VSync-%d", surface_handle)), | 106 : base::Thread(base::StringPrintf("VSync-%d", surface_handle)), |
92 callback_(callback), | 107 callback_(callback), |
93 surface_handle_(surface_handle) { | 108 surface_handle_(surface_handle), |
| 109 vsync_provider_(new gl::VSyncProviderWin(surface_handle)) { |
94 HMODULE gdi32 = GetModuleHandle(L"gdi32"); | 110 HMODULE gdi32 = GetModuleHandle(L"gdi32"); |
95 if (!gdi32) { | 111 if (!gdi32) { |
96 NOTREACHED() << "Can't open gdi32.dll"; | 112 NOTREACHED() << "Can't open gdi32.dll"; |
97 return; | 113 return; |
98 } | 114 } |
99 | 115 |
100 open_adapter_from_hdc_ptr_ = reinterpret_cast<PFND3DKMTOPENADAPTERFROMHDC>( | 116 open_adapter_from_hdc_ptr_ = reinterpret_cast<PFND3DKMTOPENADAPTERFROMHDC>( |
101 ::GetProcAddress(gdi32, "D3DKMTOpenAdapterFromHdc")); | 117 ::GetProcAddress(gdi32, "D3DKMTOpenAdapterFromHdc")); |
102 if (!open_adapter_from_hdc_ptr_) { | 118 if (!open_adapter_from_hdc_ptr_) { |
103 NOTREACHED() << "Can't find D3DKMTOpenAdapterFromHdc in gdi32.dll"; | 119 NOTREACHED() << "Can't find D3DKMTOpenAdapterFromHdc in gdi32.dll"; |
104 return; | 120 return; |
105 } | 121 } |
106 | 122 |
107 close_adapter_ptr_ = reinterpret_cast<PFND3DKMTCLOSEADAPTER>( | 123 close_adapter_ptr_ = reinterpret_cast<PFND3DKMTCLOSEADAPTER>( |
108 ::GetProcAddress(gdi32, "D3DKMTCloseAdapter")); | 124 ::GetProcAddress(gdi32, "D3DKMTCloseAdapter")); |
109 if (!close_adapter_ptr_) { | 125 if (!close_adapter_ptr_) { |
110 NOTREACHED() << "Can't find D3DKMTCloseAdapter in gdi32.dll"; | 126 NOTREACHED() << "Can't find D3DKMTCloseAdapter in gdi32.dll"; |
111 return; | 127 return; |
112 } | 128 } |
113 | 129 |
114 wait_for_vertical_blank_event_ptr_ = | 130 wait_for_vertical_blank_event_ptr_ = |
115 reinterpret_cast<PFND3DKMTWAITFORVERTICALBLANKEVENT>( | 131 reinterpret_cast<PFND3DKMTWAITFORVERTICALBLANKEVENT>( |
116 ::GetProcAddress(gdi32, "D3DKMTWaitForVerticalBlankEvent")); | 132 ::GetProcAddress(gdi32, "D3DKMTWaitForVerticalBlankEvent")); |
117 if (!wait_for_vertical_blank_event_ptr_) { | 133 if (!wait_for_vertical_blank_event_ptr_) { |
118 NOTREACHED() << "Can't find D3DKMTWaitForVerticalBlankEvent in gdi32.dll"; | 134 NOTREACHED() << "Can't find D3DKMTWaitForVerticalBlankEvent in gdi32.dll"; |
119 return; | 135 return; |
120 } | 136 } |
121 } | 137 } |
122 | 138 |
123 GpuVSyncWorker::~GpuVSyncWorker() { | 139 GpuVSyncWorker::~GpuVSyncWorker() = default; |
| 140 |
| 141 void GpuVSyncWorker::CleanupAndStop() { |
| 142 Enable(false); |
124 // Thread::Close() call below will block until this task has finished running | 143 // Thread::Close() call below will block until this task has finished running |
125 // so it is safe to post it here and pass unretained pointer. | 144 // so it is safe to post it here and pass unretained pointer. |
126 task_runner()->PostTask(FROM_HERE, base::Bind(&GpuVSyncWorker::CloseAdapter, | 145 task_runner()->PostTask(FROM_HERE, base::Bind(&GpuVSyncWorker::CloseAdapter, |
127 base::Unretained(this))); | 146 base::Unretained(this))); |
128 Stop(); | 147 Stop(); |
129 | 148 |
130 DCHECK_EQ(0u, current_adapter_handle_); | 149 DCHECK_EQ(0u, current_adapter_handle_); |
131 DCHECK(current_device_name_.empty()); | 150 DCHECK(current_device_name_.empty()); |
132 } | 151 } |
133 | 152 |
134 void GpuVSyncWorker::Enable(bool enabled) { | 153 void GpuVSyncWorker::Enable(bool enabled) { |
135 auto was_enabled = base::subtle::NoBarrier_AtomicExchange(&enabled_, enabled); | 154 auto was_enabled = base::subtle::NoBarrier_AtomicExchange(&enabled_, enabled); |
136 | 155 |
137 if (enabled && !was_enabled) | 156 if (enabled && !was_enabled) |
138 task_runner()->PostTask( | 157 task_runner()->PostTask( |
139 FROM_HERE, base::Bind(&GpuVSyncWorker::StartRunningVSyncOnThread, | 158 FROM_HERE, base::Bind(&GpuVSyncWorker::StartRunningVSyncOnThread, |
140 base::Unretained(this))); | 159 base::Unretained(this))); |
141 } | 160 } |
142 | 161 |
| 162 bool GpuVSyncWorker::BelongsToWorkerThread() { |
| 163 return base::PlatformThread::CurrentId() == GetThreadId(); |
| 164 } |
| 165 |
143 void GpuVSyncWorker::StartRunningVSyncOnThread() { | 166 void GpuVSyncWorker::StartRunningVSyncOnThread() { |
144 DCHECK(base::PlatformThread::CurrentId() == GetThreadId()); | 167 DCHECK(BelongsToWorkerThread()); |
145 | 168 |
146 if (!running_) { | 169 if (!running_) { |
147 running_ = true; | 170 running_ = true; |
148 WaitForVSyncOnThread(); | 171 WaitForVSyncOnThread(); |
149 } | 172 } |
150 } | 173 } |
151 | 174 |
152 void GpuVSyncWorker::WaitForVSyncOnThread() { | 175 void GpuVSyncWorker::WaitForVSyncOnThread() { |
153 DCHECK(base::PlatformThread::CurrentId() == GetThreadId()); | 176 DCHECK(BelongsToWorkerThread()); |
154 | 177 |
155 TRACE_EVENT0("gpu", "GpuVSyncWorker::WaitForVSyncOnThread"); | 178 TRACE_EVENT0("gpu", "GpuVSyncWorker::WaitForVSyncOnThread"); |
156 | 179 |
157 HMONITOR monitor = | 180 HMONITOR monitor = |
158 MonitorFromWindow(surface_handle_, MONITOR_DEFAULTTONEAREST); | 181 MonitorFromWindow(surface_handle_, MONITOR_DEFAULTTONEAREST); |
159 MONITORINFOEX monitor_info; | 182 MONITORINFOEX monitor_info; |
160 monitor_info.cbSize = sizeof(MONITORINFOEX); | 183 monitor_info.cbSize = sizeof(MONITORINFOEX); |
161 BOOL success = GetMonitorInfo(monitor, &monitor_info); | 184 BOOL success = GetMonitorInfo(monitor, &monitor_info); |
162 CHECK(success); | 185 CHECK(success); |
163 | 186 |
164 if (current_device_name_.compare(monitor_info.szDevice) != 0) { | 187 if (current_device_name_.compare(monitor_info.szDevice) != 0) { |
165 // Monitor changed. Close the current adapter handle and open a new one. | 188 // Monitor changed. Close the current adapter handle and open a new one. |
166 CloseAdapter(); | 189 CloseAdapter(); |
167 OpenAdapter(monitor_info.szDevice); | 190 OpenAdapter(monitor_info.szDevice); |
168 } | 191 } |
169 | 192 |
170 if (WaitForVBlankEvent()) { | 193 if (WaitForVBlankEvent()) { |
171 // Note: this sends update on background thread which the callback is | 194 vsync_provider_->GetVSyncParameters( |
172 // expected to handle. | 195 base::Bind(&GpuVSyncWorker::SendVSyncUpdate, base::Unretained(this), |
173 SendVSyncUpdate(base::TimeTicks::Now()); | 196 base::TimeTicks::Now())); |
174 } | 197 } |
175 | 198 |
176 Reschedule(); | 199 Reschedule(); |
177 } | 200 } |
178 | 201 |
179 void GpuVSyncWorker::SendVSyncUpdate(base::TimeTicks timestamp) { | 202 void GpuVSyncWorker::SendVSyncUpdate(base::TimeTicks now, |
| 203 base::TimeTicks timestamp, |
| 204 base::TimeDelta interval) { |
| 205 base::TimeDelta adjustment; |
| 206 |
| 207 if (!(timestamp.is_null() || interval.is_zero())) { |
| 208 // Timestamp comes from DwmGetCompositionTimingInfo and apparently it might |
| 209 // be up to 2-3 vsync cycles in the past or in the future. |
| 210 // The adjustment formula was suggested here: |
| 211 // http://www.vsynctester.com/firefoxisbroken.html |
| 212 base::TimeDelta adjustment = |
| 213 ((now - timestamp + interval / 8) % interval + interval) % interval - |
| 214 interval / 8; |
| 215 timestamp = now - adjustment; |
| 216 } else { |
| 217 // DWM must be disabled. |
| 218 timestamp = now; |
| 219 } |
| 220 |
| 221 TRACE_EVENT1("gpu", "GpuVSyncWorker::SendVSyncUpdate", "adjustment", |
| 222 adjustment.ToInternalValue()); |
| 223 |
180 if (base::subtle::NoBarrier_Load(&enabled_)) { | 224 if (base::subtle::NoBarrier_Load(&enabled_)) { |
181 TRACE_EVENT0("gpu", "GpuVSyncWorker::SendVSyncUpdate"); | 225 callback_.Run(timestamp, interval); |
182 callback_.Run(timestamp); | |
183 } | 226 } |
184 } | 227 } |
185 | 228 |
186 void GpuVSyncWorker::Reschedule() { | 229 void GpuVSyncWorker::Reschedule() { |
187 // Restart the task if still enabled. | 230 // Restart the task if still enabled. |
188 if (base::subtle::NoBarrier_Load(&enabled_)) { | 231 if (base::subtle::NoBarrier_Load(&enabled_)) { |
189 task_runner()->PostTask(FROM_HERE, | 232 task_runner()->PostTask(FROM_HERE, |
190 base::Bind(&GpuVSyncWorker::WaitForVSyncOnThread, | 233 base::Bind(&GpuVSyncWorker::WaitForVSyncOnThread, |
191 base::Unretained(this))); | 234 base::Unretained(this))); |
192 } else { | 235 } else { |
(...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
230 wait_for_vertical_blank_event_data.hAdapter = current_adapter_handle_; | 273 wait_for_vertical_blank_event_data.hAdapter = current_adapter_handle_; |
231 wait_for_vertical_blank_event_data.hDevice = 0; | 274 wait_for_vertical_blank_event_data.hDevice = 0; |
232 wait_for_vertical_blank_event_data.VidPnSourceId = current_source_id_; | 275 wait_for_vertical_blank_event_data.VidPnSourceId = current_source_id_; |
233 | 276 |
234 NTSTATUS result = | 277 NTSTATUS result = |
235 wait_for_vertical_blank_event_ptr_(&wait_for_vertical_blank_event_data); | 278 wait_for_vertical_blank_event_ptr_(&wait_for_vertical_blank_event_data); |
236 | 279 |
237 return result == STATUS_SUCCESS; | 280 return result == STATUS_SUCCESS; |
238 } | 281 } |
239 | 282 |
240 /* static */ | 283 // MessageFilter class for sending and receiving IPC messages |
241 std::unique_ptr<GpuVSyncProvider> GpuVSyncProvider::Create( | 284 // directly, avoiding routing them through the main GPU thread. |
242 const VSyncCallback& callback, | 285 class GpuVSyncMessageFilter : public IPC::MessageFilter { |
243 SurfaceHandle surface_handle) { | 286 public: |
244 return std::unique_ptr<GpuVSyncProvider>( | 287 explicit GpuVSyncMessageFilter( |
245 new GpuVSyncProvider(callback, surface_handle)); | 288 const scoped_refptr<GpuVSyncWorker>& vsync_worker, |
| 289 int32_t route_id) |
| 290 : vsync_worker_(vsync_worker), route_id_(route_id) {} |
| 291 |
| 292 // IPC::MessageFilter overrides. |
| 293 void OnChannelError() override { Reset(); } |
| 294 void OnChannelClosing() override { Reset(); } |
| 295 void OnFilterAdded(IPC::Channel* channel) override; |
| 296 void OnFilterRemoved() override { Reset(); } |
| 297 bool OnMessageReceived(const IPC::Message& msg) override; |
| 298 |
| 299 // Send can be called from GpuVSyncWorker thread. |
| 300 void Send(std::unique_ptr<IPC::Message> message); |
| 301 |
| 302 int32_t route_id() const { return route_id_; } |
| 303 |
| 304 private: |
| 305 ~GpuVSyncMessageFilter() override = default; |
| 306 void SendOnIOThread(std::unique_ptr<IPC::Message> message); |
| 307 void Reset(); |
| 308 |
| 309 scoped_refptr<GpuVSyncWorker> vsync_worker_; |
| 310 // The sender to which this filter was added. |
| 311 IPC::Sender* sender_ = nullptr; |
| 312 // The sender must be invoked on IO thread. |
| 313 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_; |
| 314 const int32_t route_id_; |
| 315 }; |
| 316 |
| 317 void GpuVSyncMessageFilter::OnFilterAdded(IPC::Channel* channel) { |
| 318 io_task_runner_ = base::ThreadTaskRunnerHandle::Get(); |
| 319 sender_ = channel; |
246 } | 320 } |
247 | 321 |
248 GpuVSyncProvider::GpuVSyncProvider(const VSyncCallback& callback, | 322 void GpuVSyncMessageFilter::Reset() { |
249 SurfaceHandle surface_handle) | 323 sender_ = nullptr; |
250 : vsync_worker_(new GpuVSyncWorker(callback, surface_handle)) { | 324 vsync_worker_->Enable(false); |
| 325 } |
| 326 |
| 327 bool GpuVSyncMessageFilter::OnMessageReceived(const IPC::Message& msg) { |
| 328 if (msg.routing_id() != route_id_) |
| 329 return false; |
| 330 |
| 331 IPC_BEGIN_MESSAGE_MAP(GpuVSyncMessageFilter, msg) |
| 332 IPC_MESSAGE_FORWARD(GpuCommandBufferMsg_SetNeedsVSync, vsync_worker_.get(), |
| 333 GpuVSyncWorker::Enable); |
| 334 IPC_MESSAGE_UNHANDLED(return false) |
| 335 IPC_END_MESSAGE_MAP() |
| 336 return true; |
| 337 } |
| 338 |
| 339 void GpuVSyncMessageFilter::Send(std::unique_ptr<IPC::Message> message) { |
| 340 io_task_runner_->PostTask( |
| 341 FROM_HERE, base::Bind(&GpuVSyncMessageFilter::SendOnIOThread, this, |
| 342 base::Passed(&message))); |
| 343 } |
| 344 |
| 345 void GpuVSyncMessageFilter::SendOnIOThread( |
| 346 std::unique_ptr<IPC::Message> message) { |
| 347 DCHECK(io_task_runner_->BelongsToCurrentThread()); |
| 348 DCHECK(!message->is_sync()); |
| 349 if (!sender_) |
| 350 return; |
| 351 |
| 352 sender_->Send(message.release()); |
| 353 } |
| 354 |
| 355 GpuVSyncProviderWin::GpuVSyncProviderWin( |
| 356 base::WeakPtr<ImageTransportSurfaceDelegate> delegate, |
| 357 SurfaceHandle surface_handle) { |
| 358 vsync_worker_ = new GpuVSyncWorker( |
| 359 base::Bind(&GpuVSyncProviderWin::OnVSync, base::Unretained(this)), |
| 360 surface_handle); |
| 361 message_filter_ = |
| 362 new GpuVSyncMessageFilter(vsync_worker_, delegate->GetRouteID()); |
| 363 delegate->AddFilter(message_filter_.get()); |
| 364 |
251 // Start the thread. | 365 // Start the thread. |
252 base::Thread::Options options; | 366 base::Thread::Options options; |
253 // TODO(stanisc): might consider even higher priority - REALTIME_AUDIO. | 367 // TODO(stanisc): might consider even higher priority - REALTIME_AUDIO. |
254 options.priority = base::ThreadPriority::DISPLAY; | 368 options.priority = base::ThreadPriority::DISPLAY; |
255 vsync_worker_->StartWithOptions(options); | 369 vsync_worker_->StartWithOptions(options); |
256 } | 370 } |
257 | 371 |
258 GpuVSyncProvider::~GpuVSyncProvider() = default; | 372 GpuVSyncProviderWin::~GpuVSyncProviderWin() { |
| 373 vsync_worker_->CleanupAndStop(); |
| 374 } |
259 | 375 |
260 void GpuVSyncProvider::EnableVSync(bool enabled) { | 376 void GpuVSyncProviderWin::GetVSyncParameters( |
261 vsync_worker_->Enable(enabled); | 377 const UpdateVSyncCallback& callback) { |
| 378 // This is ignored and the |callback| is never called back. The timestamp |
| 379 // and interval are posted directly via |
| 380 // GpuCommandBufferMsg_UpdateVSyncParameters message sent from the worker |
| 381 // thread. |
| 382 } |
| 383 |
| 384 void GpuVSyncProviderWin::OnVSync(base::TimeTicks timestamp, |
| 385 base::TimeDelta interval) { |
| 386 DCHECK(vsync_worker_->BelongsToWorkerThread()); |
| 387 |
| 388 message_filter_->Send( |
| 389 base::MakeUnique<GpuCommandBufferMsg_UpdateVSyncParameters>( |
| 390 message_filter_->route_id(), timestamp, interval)); |
262 } | 391 } |
263 | 392 |
264 } // namespace gpu | 393 } // namespace gpu |
OLD | NEW |