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| 1 // Copyright 2011 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 #include "cc/trees/thread_proxy.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/auto_reset.h" | |
| 11 #include "base/bind.h" | |
| 12 #include "base/trace_event/trace_event.h" | |
| 13 #include "base/trace_event/trace_event_argument.h" | |
| 14 #include "base/trace_event/trace_event_synthetic_delay.h" | |
| 15 #include "cc/debug/benchmark_instrumentation.h" | |
| 16 #include "cc/debug/devtools_instrumentation.h" | |
| 17 #include "cc/input/input_handler.h" | |
| 18 #include "cc/input/top_controls_manager.h" | |
| 19 #include "cc/output/context_provider.h" | |
| 20 #include "cc/output/output_surface.h" | |
| 21 #include "cc/output/swap_promise.h" | |
| 22 #include "cc/quads/draw_quad.h" | |
| 23 #include "cc/scheduler/commit_earlyout_reason.h" | |
| 24 #include "cc/scheduler/compositor_timing_history.h" | |
| 25 #include "cc/scheduler/scheduler.h" | |
| 26 #include "cc/trees/blocking_task_runner.h" | |
| 27 #include "cc/trees/layer_tree_host.h" | |
| 28 #include "cc/trees/layer_tree_impl.h" | |
| 29 #include "cc/trees/scoped_abort_remaining_swap_promises.h" | |
| 30 #include "gpu/command_buffer/client/gles2_interface.h" | |
| 31 | |
| 32 namespace cc { | |
| 33 | |
| 34 namespace { | |
| 35 | |
| 36 // Measured in seconds. | |
| 37 const double kSmoothnessTakesPriorityExpirationDelay = 0.25; | |
| 38 | |
| 39 unsigned int nextBeginFrameId = 0; | |
| 40 | |
| 41 } // namespace | |
| 42 | |
| 43 struct ThreadProxy::SchedulerStateRequest { | |
| 44 CompletionEvent completion; | |
| 45 scoped_ptr<base::Value> state; | |
| 46 }; | |
| 47 | |
| 48 scoped_ptr<Proxy> ThreadProxy::Create( | |
| 49 LayerTreeHost* layer_tree_host, | |
| 50 TaskRunnerProvider* task_runner_provider, | |
| 51 scoped_ptr<BeginFrameSource> external_begin_frame_source) { | |
| 52 return make_scoped_ptr( | |
| 53 new ThreadProxy(layer_tree_host, task_runner_provider, | |
| 54 std::move(external_begin_frame_source))); | |
| 55 } | |
| 56 | |
| 57 ThreadProxy::ThreadProxy( | |
| 58 LayerTreeHost* layer_tree_host, | |
| 59 TaskRunnerProvider* task_runner_provider, | |
| 60 scoped_ptr<BeginFrameSource> external_begin_frame_source) | |
| 61 : task_runner_provider_(task_runner_provider), | |
| 62 main_thread_only_vars_unsafe_(this, layer_tree_host), | |
| 63 compositor_thread_vars_unsafe_( | |
| 64 this, | |
| 65 layer_tree_host->id(), | |
| 66 layer_tree_host->rendering_stats_instrumentation(), | |
| 67 std::move(external_begin_frame_source)) { | |
| 68 TRACE_EVENT0("cc", "ThreadProxy::ThreadProxy"); | |
| 69 DCHECK(task_runner_provider_); | |
| 70 DCHECK(task_runner_provider_->IsMainThread()); | |
| 71 DCHECK(this->main().layer_tree_host); | |
| 72 // TODO(khushalsagar): Move this to LayerTreeHost#InitializeThreaded once | |
| 73 // ThreadProxy is split. LayerTreeHost creates the channel and passes it to | |
| 74 // ProxyMain#SetChannel. | |
| 75 SetChannel(ThreadedChannel::Create(this, task_runner_provider_)); | |
| 76 } | |
| 77 | |
| 78 ThreadProxy::MainThreadOnly::MainThreadOnly(ThreadProxy* proxy, | |
| 79 LayerTreeHost* layer_tree_host) | |
| 80 : layer_tree_host_id(layer_tree_host->id()), | |
| 81 layer_tree_host(layer_tree_host), | |
| 82 max_requested_pipeline_stage(NO_PIPELINE_STAGE), | |
| 83 current_pipeline_stage(NO_PIPELINE_STAGE), | |
| 84 final_pipeline_stage(NO_PIPELINE_STAGE), | |
| 85 commit_waits_for_activation(false), | |
| 86 started(false), | |
| 87 prepare_tiles_pending(false), | |
| 88 defer_commits(false), | |
| 89 weak_factory(proxy) {} | |
| 90 | |
| 91 ThreadProxy::MainThreadOnly::~MainThreadOnly() {} | |
| 92 | |
| 93 ThreadProxy::BlockedMainCommitOnly::BlockedMainCommitOnly() | |
| 94 : layer_tree_host(nullptr) {} | |
| 95 | |
| 96 ThreadProxy::BlockedMainCommitOnly::~BlockedMainCommitOnly() {} | |
| 97 | |
| 98 ThreadProxy::CompositorThreadOnly::CompositorThreadOnly( | |
| 99 ThreadProxy* proxy, | |
| 100 int layer_tree_host_id, | |
| 101 RenderingStatsInstrumentation* rendering_stats_instrumentation, | |
| 102 scoped_ptr<BeginFrameSource> external_begin_frame_source) | |
| 103 : layer_tree_host_id(layer_tree_host_id), | |
| 104 next_commit_waits_for_activation(false), | |
| 105 commit_completion_event(nullptr), | |
| 106 next_frame_is_newly_committed_frame(false), | |
| 107 inside_draw(false), | |
| 108 input_throttled_until_commit(false), | |
| 109 smoothness_priority_expiration_notifier( | |
| 110 proxy->task_runner_provider() | |
| 111 ->ImplThreadTaskRunner(), | |
| 112 base::Bind(&ThreadProxy::RenewTreePriority, base::Unretained(proxy)), | |
| 113 base::TimeDelta::FromMilliseconds( | |
| 114 kSmoothnessTakesPriorityExpirationDelay * 1000)), | |
| 115 external_begin_frame_source(std::move(external_begin_frame_source)), | |
| 116 rendering_stats_instrumentation(rendering_stats_instrumentation), | |
| 117 weak_factory(proxy) {} | |
| 118 | |
| 119 ThreadProxy::CompositorThreadOnly::~CompositorThreadOnly() {} | |
| 120 | |
| 121 ThreadProxy::~ThreadProxy() { | |
| 122 TRACE_EVENT0("cc", "ThreadProxy::~ThreadProxy"); | |
| 123 DCHECK(task_runner_provider_->IsMainThread()); | |
| 124 DCHECK(!main().started); | |
| 125 } | |
| 126 | |
| 127 void ThreadProxy::SetChannel(scoped_ptr<ThreadedChannel> threaded_channel) { | |
| 128 threaded_channel_ = std::move(threaded_channel); | |
| 129 main().channel_main = threaded_channel_.get(); | |
| 130 } | |
| 131 | |
| 132 void ThreadProxy::FinishAllRendering() { | |
| 133 DCHECK(task_runner_provider_->IsMainThread()); | |
| 134 DCHECK(!main().defer_commits); | |
| 135 | |
| 136 // Make sure all GL drawing is finished on the impl thread. | |
| 137 DebugScopedSetMainThreadBlocked main_thread_blocked(task_runner_provider_); | |
| 138 CompletionEvent completion; | |
| 139 main().channel_main->FinishAllRenderingOnImpl(&completion); | |
| 140 completion.Wait(); | |
| 141 } | |
| 142 | |
| 143 bool ThreadProxy::IsStarted() const { | |
| 144 DCHECK(task_runner_provider_->IsMainThread()); | |
| 145 return main().started; | |
| 146 } | |
| 147 | |
| 148 bool ThreadProxy::CommitToActiveTree() const { | |
| 149 // With ThreadProxy, we use a pending tree and activate it once it's ready to | |
| 150 // draw to allow input to modify the active tree and draw during raster. | |
| 151 return false; | |
| 152 } | |
| 153 | |
| 154 void ThreadProxy::SetVisible(bool visible) { | |
| 155 TRACE_EVENT1("cc", "ThreadProxy::SetVisible", "visible", visible); | |
| 156 main().channel_main->SetVisibleOnImpl(visible); | |
| 157 } | |
| 158 | |
| 159 void ThreadProxy::SetVisibleOnImpl(bool visible) { | |
| 160 TRACE_EVENT1("cc", "ThreadProxy::SetVisibleOnImplThread", "visible", visible); | |
| 161 impl().layer_tree_host_impl->SetVisible(visible); | |
| 162 impl().scheduler->SetVisible(visible); | |
| 163 } | |
| 164 | |
| 165 void ThreadProxy::SetThrottleFrameProduction(bool throttle) { | |
| 166 TRACE_EVENT1("cc", "ThreadProxy::SetThrottleFrameProduction", "throttle", | |
| 167 throttle); | |
| 168 main().channel_main->SetThrottleFrameProductionOnImpl(throttle); | |
| 169 } | |
| 170 | |
| 171 void ThreadProxy::SetThrottleFrameProductionOnImpl(bool throttle) { | |
| 172 TRACE_EVENT1("cc", "ThreadProxy::SetThrottleFrameProductionOnImplThread", | |
| 173 "throttle", throttle); | |
| 174 impl().scheduler->SetThrottleFrameProduction(throttle); | |
| 175 } | |
| 176 | |
| 177 void ThreadProxy::DidLoseOutputSurface() { | |
| 178 TRACE_EVENT0("cc", "ThreadProxy::DidLoseOutputSurface"); | |
| 179 DCHECK(task_runner_provider_->IsMainThread()); | |
| 180 main().layer_tree_host->DidLoseOutputSurface(); | |
| 181 } | |
| 182 | |
| 183 void ThreadProxy::RequestNewOutputSurface() { | |
| 184 DCHECK(task_runner_provider_->IsMainThread()); | |
| 185 main().layer_tree_host->RequestNewOutputSurface(); | |
| 186 } | |
| 187 | |
| 188 void ThreadProxy::SetOutputSurface(OutputSurface* output_surface) { | |
| 189 main().channel_main->InitializeOutputSurfaceOnImpl(output_surface); | |
| 190 } | |
| 191 | |
| 192 void ThreadProxy::ReleaseOutputSurface() { | |
| 193 DCHECK(task_runner_provider_->IsMainThread()); | |
| 194 DCHECK(main().layer_tree_host->output_surface_lost()); | |
| 195 | |
| 196 DebugScopedSetMainThreadBlocked main_thread_blocked(task_runner_provider_); | |
| 197 CompletionEvent completion; | |
| 198 main().channel_main->ReleaseOutputSurfaceOnImpl(&completion); | |
| 199 completion.Wait(); | |
| 200 } | |
| 201 | |
| 202 void ThreadProxy::DidInitializeOutputSurface( | |
| 203 bool success, | |
| 204 const RendererCapabilities& capabilities) { | |
| 205 TRACE_EVENT0("cc", "ThreadProxy::DidInitializeOutputSurface"); | |
| 206 DCHECK(task_runner_provider_->IsMainThread()); | |
| 207 | |
| 208 if (!success) { | |
| 209 main().layer_tree_host->DidFailToInitializeOutputSurface(); | |
| 210 return; | |
| 211 } | |
| 212 main().renderer_capabilities_main_thread_copy = capabilities; | |
| 213 main().layer_tree_host->DidInitializeOutputSurface(); | |
| 214 } | |
| 215 | |
| 216 void ThreadProxy::SetRendererCapabilitiesMainCopy( | |
| 217 const RendererCapabilities& capabilities) { | |
| 218 main().renderer_capabilities_main_thread_copy = capabilities; | |
| 219 } | |
| 220 | |
| 221 bool ThreadProxy::SendCommitRequestToImplThreadIfNeeded( | |
| 222 CommitPipelineStage required_stage) { | |
| 223 DCHECK(task_runner_provider_->IsMainThread()); | |
| 224 DCHECK_NE(NO_PIPELINE_STAGE, required_stage); | |
| 225 bool already_posted = | |
| 226 main().max_requested_pipeline_stage != NO_PIPELINE_STAGE; | |
| 227 main().max_requested_pipeline_stage = | |
| 228 std::max(main().max_requested_pipeline_stage, required_stage); | |
| 229 if (already_posted) | |
| 230 return false; | |
| 231 main().channel_main->SetNeedsCommitOnImpl(); | |
| 232 return true; | |
| 233 } | |
| 234 | |
| 235 void ThreadProxy::SetNeedsCommitOnImpl() { | |
| 236 SetNeedsCommitOnImplThread(); | |
| 237 } | |
| 238 | |
| 239 void ThreadProxy::DidCompletePageScaleAnimation() { | |
| 240 DCHECK(task_runner_provider_->IsMainThread()); | |
| 241 main().layer_tree_host->DidCompletePageScaleAnimation(); | |
| 242 } | |
| 243 | |
| 244 const RendererCapabilities& ThreadProxy::GetRendererCapabilities() const { | |
| 245 DCHECK(task_runner_provider_->IsMainThread()); | |
| 246 DCHECK(!main().layer_tree_host->output_surface_lost()); | |
| 247 return main().renderer_capabilities_main_thread_copy; | |
| 248 } | |
| 249 | |
| 250 void ThreadProxy::SetNeedsAnimate() { | |
| 251 DCHECK(task_runner_provider_->IsMainThread()); | |
| 252 if (SendCommitRequestToImplThreadIfNeeded(ANIMATE_PIPELINE_STAGE)) { | |
| 253 TRACE_EVENT_INSTANT0("cc", "ThreadProxy::SetNeedsAnimate", | |
| 254 TRACE_EVENT_SCOPE_THREAD); | |
| 255 } | |
| 256 } | |
| 257 | |
| 258 void ThreadProxy::SetNeedsUpdateLayers() { | |
| 259 DCHECK(task_runner_provider_->IsMainThread()); | |
| 260 // If we are currently animating, make sure we also update the layers. | |
| 261 if (main().current_pipeline_stage == ANIMATE_PIPELINE_STAGE) { | |
| 262 main().final_pipeline_stage = | |
| 263 std::max(main().final_pipeline_stage, UPDATE_LAYERS_PIPELINE_STAGE); | |
| 264 return; | |
| 265 } | |
| 266 if (SendCommitRequestToImplThreadIfNeeded(UPDATE_LAYERS_PIPELINE_STAGE)) { | |
| 267 TRACE_EVENT_INSTANT0("cc", "ThreadProxy::SetNeedsUpdateLayers", | |
| 268 TRACE_EVENT_SCOPE_THREAD); | |
| 269 } | |
| 270 } | |
| 271 | |
| 272 void ThreadProxy::SetNeedsCommit() { | |
| 273 DCHECK(task_runner_provider_->IsMainThread()); | |
| 274 // If we are currently animating, make sure we don't skip the commit. Note | |
| 275 // that requesting a commit during the layer update stage means we need to | |
| 276 // schedule another full commit. | |
| 277 if (main().current_pipeline_stage == ANIMATE_PIPELINE_STAGE) { | |
| 278 main().final_pipeline_stage = | |
| 279 std::max(main().final_pipeline_stage, COMMIT_PIPELINE_STAGE); | |
| 280 return; | |
| 281 } | |
| 282 if (SendCommitRequestToImplThreadIfNeeded(COMMIT_PIPELINE_STAGE)) { | |
| 283 TRACE_EVENT_INSTANT0("cc", "ThreadProxy::SetNeedsCommit", | |
| 284 TRACE_EVENT_SCOPE_THREAD); | |
| 285 } | |
| 286 } | |
| 287 | |
| 288 void ThreadProxy::UpdateRendererCapabilitiesOnImplThread() { | |
| 289 DCHECK(task_runner_provider_->IsImplThread()); | |
| 290 impl().channel_impl->SetRendererCapabilitiesMainCopy( | |
| 291 impl() | |
| 292 .layer_tree_host_impl->GetRendererCapabilities() | |
| 293 .MainThreadCapabilities()); | |
| 294 } | |
| 295 | |
| 296 void ThreadProxy::DidLoseOutputSurfaceOnImplThread() { | |
| 297 TRACE_EVENT0("cc", "ThreadProxy::DidLoseOutputSurfaceOnImplThread"); | |
| 298 DCHECK(task_runner_provider_->IsImplThread()); | |
| 299 impl().channel_impl->DidLoseOutputSurface(); | |
| 300 impl().scheduler->DidLoseOutputSurface(); | |
| 301 } | |
| 302 | |
| 303 void ThreadProxy::CommitVSyncParameters(base::TimeTicks timebase, | |
| 304 base::TimeDelta interval) { | |
| 305 impl().scheduler->CommitVSyncParameters(timebase, interval); | |
| 306 } | |
| 307 | |
| 308 void ThreadProxy::SetEstimatedParentDrawTime(base::TimeDelta draw_time) { | |
| 309 impl().scheduler->SetEstimatedParentDrawTime(draw_time); | |
| 310 } | |
| 311 | |
| 312 void ThreadProxy::DidSwapBuffersOnImplThread() { | |
| 313 impl().scheduler->DidSwapBuffers(); | |
| 314 } | |
| 315 | |
| 316 void ThreadProxy::DidSwapBuffersCompleteOnImplThread() { | |
| 317 TRACE_EVENT0("cc,benchmark", | |
| 318 "ThreadProxy::DidSwapBuffersCompleteOnImplThread"); | |
| 319 DCHECK(task_runner_provider_->IsImplThread()); | |
| 320 impl().scheduler->DidSwapBuffersComplete(); | |
| 321 impl().channel_impl->DidCompleteSwapBuffers(); | |
| 322 } | |
| 323 | |
| 324 void ThreadProxy::WillBeginImplFrame(const BeginFrameArgs& args) { | |
| 325 impl().layer_tree_host_impl->WillBeginImplFrame(args); | |
| 326 if (impl().last_processed_begin_main_frame_args.IsValid()) { | |
| 327 // Last processed begin main frame args records the frame args that we sent | |
| 328 // to the main thread for the last frame that we've processed. If that is | |
| 329 // set, that means the current frame is one past the frame in which we've | |
| 330 // finished the processing. | |
| 331 impl().layer_tree_host_impl->RecordMainFrameTiming( | |
| 332 impl().last_processed_begin_main_frame_args, args); | |
| 333 impl().last_processed_begin_main_frame_args = BeginFrameArgs(); | |
| 334 } | |
| 335 } | |
| 336 | |
| 337 void ThreadProxy::OnResourcelessSoftareDrawStateChanged( | |
| 338 bool resourceless_draw) { | |
| 339 DCHECK(task_runner_provider_->IsImplThread()); | |
| 340 impl().scheduler->SetResourcelessSoftareDraw(resourceless_draw); | |
| 341 } | |
| 342 | |
| 343 void ThreadProxy::OnCanDrawStateChanged(bool can_draw) { | |
| 344 TRACE_EVENT1( | |
| 345 "cc", "ThreadProxy::OnCanDrawStateChanged", "can_draw", can_draw); | |
| 346 DCHECK(task_runner_provider_->IsImplThread()); | |
| 347 impl().scheduler->SetCanDraw(can_draw); | |
| 348 } | |
| 349 | |
| 350 void ThreadProxy::NotifyReadyToActivate() { | |
| 351 TRACE_EVENT0("cc", "ThreadProxy::NotifyReadyToActivate"); | |
| 352 impl().scheduler->NotifyReadyToActivate(); | |
| 353 } | |
| 354 | |
| 355 void ThreadProxy::NotifyReadyToDraw() { | |
| 356 TRACE_EVENT0("cc", "ThreadProxy::NotifyReadyToDraw"); | |
| 357 impl().scheduler->NotifyReadyToDraw(); | |
| 358 } | |
| 359 | |
| 360 void ThreadProxy::SetNeedsCommitOnImplThread() { | |
| 361 TRACE_EVENT0("cc", "ThreadProxy::SetNeedsCommitOnImplThread"); | |
| 362 DCHECK(task_runner_provider_->IsImplThread()); | |
| 363 impl().scheduler->SetNeedsBeginMainFrame(); | |
| 364 } | |
| 365 | |
| 366 void ThreadProxy::SetVideoNeedsBeginFrames(bool needs_begin_frames) { | |
| 367 TRACE_EVENT1("cc", "ThreadProxy::SetVideoNeedsBeginFrames", | |
| 368 "needs_begin_frames", needs_begin_frames); | |
| 369 DCHECK(task_runner_provider_->IsImplThread()); | |
| 370 // In tests the layer tree is destroyed after the scheduler is. | |
| 371 if (impl().scheduler) | |
| 372 impl().scheduler->SetVideoNeedsBeginFrames(needs_begin_frames); | |
| 373 } | |
| 374 | |
| 375 void ThreadProxy::PostAnimationEventsToMainThreadOnImplThread( | |
| 376 scoped_ptr<AnimationEventsVector> events) { | |
| 377 TRACE_EVENT0("cc", | |
| 378 "ThreadProxy::PostAnimationEventsToMainThreadOnImplThread"); | |
| 379 DCHECK(task_runner_provider_->IsImplThread()); | |
| 380 impl().channel_impl->SetAnimationEvents(std::move(events)); | |
| 381 } | |
| 382 | |
| 383 bool ThreadProxy::IsInsideDraw() { return impl().inside_draw; } | |
| 384 | |
| 385 void ThreadProxy::SetNeedsRedraw(const gfx::Rect& damage_rect) { | |
| 386 TRACE_EVENT0("cc", "ThreadProxy::SetNeedsRedraw"); | |
| 387 DCHECK(task_runner_provider_->IsMainThread()); | |
| 388 main().channel_main->SetNeedsRedrawOnImpl(damage_rect); | |
| 389 } | |
| 390 | |
| 391 void ThreadProxy::SetNeedsRedrawOnImpl(const gfx::Rect& damage_rect) { | |
| 392 DCHECK(task_runner_provider_->IsImplThread()); | |
| 393 SetNeedsRedrawRectOnImplThread(damage_rect); | |
| 394 } | |
| 395 | |
| 396 void ThreadProxy::SetNextCommitWaitsForActivation() { | |
| 397 DCHECK(task_runner_provider_->IsMainThread()); | |
| 398 main().commit_waits_for_activation = true; | |
| 399 } | |
| 400 | |
| 401 void ThreadProxy::SetDeferCommits(bool defer_commits) { | |
| 402 DCHECK(task_runner_provider_->IsMainThread()); | |
| 403 if (main().defer_commits == defer_commits) | |
| 404 return; | |
| 405 | |
| 406 main().defer_commits = defer_commits; | |
| 407 if (main().defer_commits) | |
| 408 TRACE_EVENT_ASYNC_BEGIN0("cc", "ThreadProxy::SetDeferCommits", this); | |
| 409 else | |
| 410 TRACE_EVENT_ASYNC_END0("cc", "ThreadProxy::SetDeferCommits", this); | |
| 411 | |
| 412 main().channel_main->SetDeferCommitsOnImpl(defer_commits); | |
| 413 } | |
| 414 | |
| 415 void ThreadProxy::SetDeferCommitsOnImpl(bool defer_commits) const { | |
| 416 DCHECK(task_runner_provider_->IsImplThread()); | |
| 417 impl().scheduler->SetDeferCommits(defer_commits); | |
| 418 } | |
| 419 | |
| 420 bool ThreadProxy::CommitRequested() const { | |
| 421 DCHECK(task_runner_provider_->IsMainThread()); | |
| 422 // TODO(skyostil): Split this into something like CommitRequested() and | |
| 423 // CommitInProgress(). | |
| 424 return main().current_pipeline_stage != NO_PIPELINE_STAGE || | |
| 425 main().max_requested_pipeline_stage >= COMMIT_PIPELINE_STAGE; | |
| 426 } | |
| 427 | |
| 428 bool ThreadProxy::BeginMainFrameRequested() const { | |
| 429 DCHECK(task_runner_provider_->IsMainThread()); | |
| 430 return main().max_requested_pipeline_stage != NO_PIPELINE_STAGE; | |
| 431 } | |
| 432 | |
| 433 void ThreadProxy::SetNeedsRedrawOnImplThread() { | |
| 434 TRACE_EVENT0("cc", "ThreadProxy::SetNeedsRedrawOnImplThread"); | |
| 435 DCHECK(task_runner_provider_->IsImplThread()); | |
| 436 impl().scheduler->SetNeedsRedraw(); | |
| 437 } | |
| 438 | |
| 439 void ThreadProxy::SetNeedsOneBeginImplFrameOnImplThread() { | |
| 440 TRACE_EVENT0("cc", "ThreadProxy::SetNeedsOneBeginImplFrameOnImplThread"); | |
| 441 DCHECK(task_runner_provider_->IsImplThread()); | |
| 442 impl().scheduler->SetNeedsOneBeginImplFrame(); | |
| 443 } | |
| 444 | |
| 445 void ThreadProxy::SetNeedsPrepareTilesOnImplThread() { | |
| 446 DCHECK(task_runner_provider_->IsImplThread()); | |
| 447 impl().scheduler->SetNeedsPrepareTiles(); | |
| 448 } | |
| 449 | |
| 450 void ThreadProxy::SetNeedsRedrawRectOnImplThread(const gfx::Rect& damage_rect) { | |
| 451 DCHECK(task_runner_provider_->IsImplThread()); | |
| 452 impl().layer_tree_host_impl->SetViewportDamage(damage_rect); | |
| 453 SetNeedsRedrawOnImplThread(); | |
| 454 } | |
| 455 | |
| 456 void ThreadProxy::MainThreadHasStoppedFlinging() { | |
| 457 DCHECK(task_runner_provider_->IsMainThread()); | |
| 458 main().channel_main->MainThreadHasStoppedFlingingOnImpl(); | |
| 459 } | |
| 460 | |
| 461 void ThreadProxy::MainThreadHasStoppedFlingingOnImpl() { | |
| 462 DCHECK(task_runner_provider_->IsImplThread()); | |
| 463 impl().layer_tree_host_impl->MainThreadHasStoppedFlinging(); | |
| 464 } | |
| 465 | |
| 466 void ThreadProxy::NotifyInputThrottledUntilCommit() { | |
| 467 DCHECK(task_runner_provider_->IsMainThread()); | |
| 468 main().channel_main->SetInputThrottledUntilCommitOnImpl(true); | |
| 469 } | |
| 470 | |
| 471 void ThreadProxy::SetInputThrottledUntilCommitOnImpl(bool is_throttled) { | |
| 472 DCHECK(task_runner_provider_->IsImplThread()); | |
| 473 if (is_throttled == impl().input_throttled_until_commit) | |
| 474 return; | |
| 475 impl().input_throttled_until_commit = is_throttled; | |
| 476 RenewTreePriority(); | |
| 477 } | |
| 478 | |
| 479 ThreadProxy::MainThreadOnly& ThreadProxy::main() { | |
| 480 DCHECK(task_runner_provider_->IsMainThread()); | |
| 481 return main_thread_only_vars_unsafe_; | |
| 482 } | |
| 483 const ThreadProxy::MainThreadOnly& ThreadProxy::main() const { | |
| 484 DCHECK(task_runner_provider_->IsMainThread()); | |
| 485 return main_thread_only_vars_unsafe_; | |
| 486 } | |
| 487 | |
| 488 ThreadProxy::BlockedMainCommitOnly& ThreadProxy::blocked_main_commit() { | |
| 489 DCHECK(impl().commit_completion_event); | |
| 490 DCHECK(task_runner_provider_->IsMainThreadBlocked()); | |
| 491 return main_thread_blocked_commit_vars_unsafe_; | |
| 492 } | |
| 493 | |
| 494 ThreadProxy::CompositorThreadOnly& ThreadProxy::impl() { | |
| 495 DCHECK(task_runner_provider_->IsImplThread()); | |
| 496 return compositor_thread_vars_unsafe_; | |
| 497 } | |
| 498 | |
| 499 const ThreadProxy::CompositorThreadOnly& ThreadProxy::impl() const { | |
| 500 DCHECK(task_runner_provider_->IsImplThread()); | |
| 501 return compositor_thread_vars_unsafe_; | |
| 502 } | |
| 503 | |
| 504 void ThreadProxy::Start() { | |
| 505 DCHECK(task_runner_provider_->IsMainThread()); | |
| 506 DCHECK(task_runner_provider_->HasImplThread()); | |
| 507 | |
| 508 // Create LayerTreeHostImpl. | |
| 509 DebugScopedSetMainThreadBlocked main_thread_blocked(task_runner_provider_); | |
| 510 CompletionEvent completion; | |
| 511 main().channel_main->InitializeImplOnImpl(&completion, | |
| 512 main().layer_tree_host); | |
| 513 completion.Wait(); | |
| 514 | |
| 515 main_thread_weak_ptr_ = main().weak_factory.GetWeakPtr(); | |
| 516 | |
| 517 main().started = true; | |
| 518 } | |
| 519 | |
| 520 void ThreadProxy::Stop() { | |
| 521 TRACE_EVENT0("cc", "ThreadProxy::Stop"); | |
| 522 DCHECK(task_runner_provider_->IsMainThread()); | |
| 523 DCHECK(main().started); | |
| 524 | |
| 525 // Synchronously finishes pending GL operations and deletes the impl. | |
| 526 // The two steps are done as separate post tasks, so that tasks posted | |
| 527 // by the GL implementation due to the Finish can be executed by the | |
| 528 // renderer before shutting it down. | |
| 529 { | |
| 530 DebugScopedSetMainThreadBlocked main_thread_blocked(task_runner_provider_); | |
| 531 CompletionEvent completion; | |
| 532 main().channel_main->FinishGLOnImpl(&completion); | |
| 533 completion.Wait(); | |
| 534 } | |
| 535 { | |
| 536 DebugScopedSetMainThreadBlocked main_thread_blocked(task_runner_provider_); | |
| 537 | |
| 538 CompletionEvent completion; | |
| 539 main().channel_main->LayerTreeHostClosedOnImpl(&completion); | |
| 540 completion.Wait(); | |
| 541 } | |
| 542 | |
| 543 main().weak_factory.InvalidateWeakPtrs(); | |
| 544 main().layer_tree_host = nullptr; | |
| 545 main().started = false; | |
| 546 } | |
| 547 | |
| 548 bool ThreadProxy::SupportsImplScrolling() const { | |
| 549 return true; | |
| 550 } | |
| 551 | |
| 552 void ThreadProxy::FinishAllRenderingOnImpl(CompletionEvent* completion) { | |
| 553 TRACE_EVENT0("cc", "ThreadProxy::FinishAllRenderingOnImplThread"); | |
| 554 DCHECK(task_runner_provider_->IsImplThread()); | |
| 555 impl().layer_tree_host_impl->FinishAllRendering(); | |
| 556 completion->Signal(); | |
| 557 } | |
| 558 | |
| 559 void ThreadProxy::ScheduledActionSendBeginMainFrame( | |
| 560 const BeginFrameArgs& args) { | |
| 561 unsigned int begin_frame_id = nextBeginFrameId++; | |
| 562 benchmark_instrumentation::ScopedBeginFrameTask begin_frame_task( | |
| 563 benchmark_instrumentation::kSendBeginFrame, begin_frame_id); | |
| 564 scoped_ptr<BeginMainFrameAndCommitState> begin_main_frame_state( | |
| 565 new BeginMainFrameAndCommitState); | |
| 566 begin_main_frame_state->begin_frame_id = begin_frame_id; | |
| 567 begin_main_frame_state->begin_frame_args = args; | |
| 568 begin_main_frame_state->scroll_info = | |
| 569 impl().layer_tree_host_impl->ProcessScrollDeltas(); | |
| 570 begin_main_frame_state->memory_allocation_limit_bytes = | |
| 571 impl().layer_tree_host_impl->memory_allocation_limit_bytes(); | |
| 572 begin_main_frame_state->evicted_ui_resources = | |
| 573 impl().layer_tree_host_impl->EvictedUIResourcesExist(); | |
| 574 // TODO(vmpstr): This needs to be fixed if | |
| 575 // main_frame_before_activation_enabled is set, since we might run this code | |
| 576 // twice before recording a duration. crbug.com/469824 | |
| 577 impl().last_begin_main_frame_args = begin_main_frame_state->begin_frame_args; | |
| 578 impl().channel_impl->BeginMainFrame(std::move(begin_main_frame_state)); | |
| 579 devtools_instrumentation::DidRequestMainThreadFrame( | |
| 580 impl().layer_tree_host_id); | |
| 581 } | |
| 582 | |
| 583 void ThreadProxy::SendBeginMainFrameNotExpectedSoon() { | |
| 584 impl().channel_impl->BeginMainFrameNotExpectedSoon(); | |
| 585 } | |
| 586 | |
| 587 void ThreadProxy::BeginMainFrame( | |
| 588 scoped_ptr<BeginMainFrameAndCommitState> begin_main_frame_state) { | |
| 589 benchmark_instrumentation::ScopedBeginFrameTask begin_frame_task( | |
| 590 benchmark_instrumentation::kDoBeginFrame, | |
| 591 begin_main_frame_state->begin_frame_id); | |
| 592 | |
| 593 base::TimeTicks begin_main_frame_start_time = base::TimeTicks::Now(); | |
| 594 | |
| 595 TRACE_EVENT_SYNTHETIC_DELAY_BEGIN("cc.BeginMainFrame"); | |
| 596 DCHECK(task_runner_provider_->IsMainThread()); | |
| 597 DCHECK_EQ(NO_PIPELINE_STAGE, main().current_pipeline_stage); | |
| 598 | |
| 599 if (main().defer_commits) { | |
| 600 TRACE_EVENT_INSTANT0("cc", "EarlyOut_DeferCommit", | |
| 601 TRACE_EVENT_SCOPE_THREAD); | |
| 602 main().channel_main->BeginMainFrameAbortedOnImpl( | |
| 603 CommitEarlyOutReason::ABORTED_DEFERRED_COMMIT, | |
| 604 begin_main_frame_start_time); | |
| 605 return; | |
| 606 } | |
| 607 | |
| 608 // If the commit finishes, LayerTreeHost will transfer its swap promises to | |
| 609 // LayerTreeImpl. The destructor of ScopedSwapPromiseChecker aborts the | |
| 610 // remaining swap promises. | |
| 611 ScopedAbortRemainingSwapPromises swap_promise_checker(main().layer_tree_host); | |
| 612 | |
| 613 main().final_pipeline_stage = main().max_requested_pipeline_stage; | |
| 614 main().max_requested_pipeline_stage = NO_PIPELINE_STAGE; | |
| 615 | |
| 616 if (!main().layer_tree_host->visible()) { | |
| 617 TRACE_EVENT_INSTANT0("cc", "EarlyOut_NotVisible", TRACE_EVENT_SCOPE_THREAD); | |
| 618 main().channel_main->BeginMainFrameAbortedOnImpl( | |
| 619 CommitEarlyOutReason::ABORTED_NOT_VISIBLE, begin_main_frame_start_time); | |
| 620 return; | |
| 621 } | |
| 622 | |
| 623 if (main().layer_tree_host->output_surface_lost()) { | |
| 624 TRACE_EVENT_INSTANT0( | |
| 625 "cc", "EarlyOut_OutputSurfaceLost", TRACE_EVENT_SCOPE_THREAD); | |
| 626 main().channel_main->BeginMainFrameAbortedOnImpl( | |
| 627 CommitEarlyOutReason::ABORTED_OUTPUT_SURFACE_LOST, | |
| 628 begin_main_frame_start_time); | |
| 629 return; | |
| 630 } | |
| 631 | |
| 632 main().current_pipeline_stage = ANIMATE_PIPELINE_STAGE; | |
| 633 | |
| 634 main().layer_tree_host->ApplyScrollAndScale( | |
| 635 begin_main_frame_state->scroll_info.get()); | |
| 636 | |
| 637 main().layer_tree_host->WillBeginMainFrame(); | |
| 638 | |
| 639 main().layer_tree_host->BeginMainFrame( | |
| 640 begin_main_frame_state->begin_frame_args); | |
| 641 main().layer_tree_host->AnimateLayers( | |
| 642 begin_main_frame_state->begin_frame_args.frame_time); | |
| 643 | |
| 644 // Recreate all UI resources if there were evicted UI resources when the impl | |
| 645 // thread initiated the commit. | |
| 646 if (begin_main_frame_state->evicted_ui_resources) | |
| 647 main().layer_tree_host->RecreateUIResources(); | |
| 648 | |
| 649 main().layer_tree_host->RequestMainFrameUpdate(); | |
| 650 TRACE_EVENT_SYNTHETIC_DELAY_END("cc.BeginMainFrame"); | |
| 651 | |
| 652 bool can_cancel_this_commit = | |
| 653 main().final_pipeline_stage < COMMIT_PIPELINE_STAGE && | |
| 654 !begin_main_frame_state->evicted_ui_resources; | |
| 655 | |
| 656 main().current_pipeline_stage = UPDATE_LAYERS_PIPELINE_STAGE; | |
| 657 bool should_update_layers = | |
| 658 main().final_pipeline_stage >= UPDATE_LAYERS_PIPELINE_STAGE; | |
| 659 bool updated = should_update_layers && main().layer_tree_host->UpdateLayers(); | |
| 660 | |
| 661 main().layer_tree_host->WillCommit(); | |
| 662 devtools_instrumentation::ScopedCommitTrace commit_task( | |
| 663 main().layer_tree_host->id()); | |
| 664 | |
| 665 main().current_pipeline_stage = COMMIT_PIPELINE_STAGE; | |
| 666 if (!updated && can_cancel_this_commit) { | |
| 667 TRACE_EVENT_INSTANT0("cc", "EarlyOut_NoUpdates", TRACE_EVENT_SCOPE_THREAD); | |
| 668 main().channel_main->BeginMainFrameAbortedOnImpl( | |
| 669 CommitEarlyOutReason::FINISHED_NO_UPDATES, begin_main_frame_start_time); | |
| 670 | |
| 671 // Although the commit is internally aborted, this is because it has been | |
| 672 // detected to be a no-op. From the perspective of an embedder, this commit | |
| 673 // went through, and input should no longer be throttled, etc. | |
| 674 main().current_pipeline_stage = NO_PIPELINE_STAGE; | |
| 675 main().layer_tree_host->CommitComplete(); | |
| 676 main().layer_tree_host->DidBeginMainFrame(); | |
| 677 main().layer_tree_host->BreakSwapPromises(SwapPromise::COMMIT_NO_UPDATE); | |
| 678 return; | |
| 679 } | |
| 680 | |
| 681 // Notify the impl thread that the main thread is ready to commit. This will | |
| 682 // begin the commit process, which is blocking from the main thread's | |
| 683 // point of view, but asynchronously performed on the impl thread, | |
| 684 // coordinated by the Scheduler. | |
| 685 { | |
| 686 TRACE_EVENT0("cc", "ThreadProxy::BeginMainFrame::commit"); | |
| 687 | |
| 688 DebugScopedSetMainThreadBlocked main_thread_blocked(task_runner_provider_); | |
| 689 | |
| 690 // This CapturePostTasks should be destroyed before CommitComplete() is | |
| 691 // called since that goes out to the embedder, and we want the embedder | |
| 692 // to receive its callbacks before that. | |
| 693 BlockingTaskRunner::CapturePostTasks blocked( | |
| 694 task_runner_provider_->blocking_main_thread_task_runner()); | |
| 695 | |
| 696 CompletionEvent completion; | |
| 697 main().channel_main->StartCommitOnImpl(&completion, main().layer_tree_host, | |
| 698 begin_main_frame_start_time, | |
| 699 main().commit_waits_for_activation); | |
| 700 completion.Wait(); | |
| 701 main().commit_waits_for_activation = false; | |
| 702 } | |
| 703 | |
| 704 main().current_pipeline_stage = NO_PIPELINE_STAGE; | |
| 705 main().layer_tree_host->CommitComplete(); | |
| 706 main().layer_tree_host->DidBeginMainFrame(); | |
| 707 } | |
| 708 | |
| 709 void ThreadProxy::BeginMainFrameNotExpectedSoon() { | |
| 710 TRACE_EVENT0("cc", "ThreadProxy::BeginMainFrameNotExpectedSoon"); | |
| 711 DCHECK(task_runner_provider_->IsMainThread()); | |
| 712 main().layer_tree_host->BeginMainFrameNotExpectedSoon(); | |
| 713 } | |
| 714 | |
| 715 void ThreadProxy::StartCommitOnImpl(CompletionEvent* completion, | |
| 716 LayerTreeHost* layer_tree_host, | |
| 717 base::TimeTicks main_thread_start_time, | |
| 718 bool hold_commit_for_activation) { | |
| 719 TRACE_EVENT0("cc", "ThreadProxy::StartCommitOnImplThread"); | |
| 720 DCHECK(!impl().commit_completion_event); | |
| 721 DCHECK(task_runner_provider_->IsImplThread() && | |
| 722 task_runner_provider_->IsMainThreadBlocked()); | |
| 723 DCHECK(impl().scheduler); | |
| 724 DCHECK(impl().scheduler->CommitPending()); | |
| 725 | |
| 726 if (hold_commit_for_activation) { | |
| 727 // This commit may be aborted. Store the value for | |
| 728 // hold_commit_for_activation so that whenever the next commit is started, | |
| 729 // the main thread will be unblocked only after pending tree activation. | |
| 730 impl().next_commit_waits_for_activation = hold_commit_for_activation; | |
| 731 } | |
| 732 | |
| 733 if (!impl().layer_tree_host_impl) { | |
| 734 TRACE_EVENT_INSTANT0( | |
| 735 "cc", "EarlyOut_NoLayerTree", TRACE_EVENT_SCOPE_THREAD); | |
| 736 completion->Signal(); | |
| 737 return; | |
| 738 } | |
| 739 | |
| 740 // Ideally, we should inform to impl thread when BeginMainFrame is started. | |
| 741 // But, we can avoid a PostTask in here. | |
| 742 impl().scheduler->NotifyBeginMainFrameStarted(main_thread_start_time); | |
| 743 impl().commit_completion_event = completion; | |
| 744 DCHECK(!blocked_main_commit().layer_tree_host); | |
| 745 blocked_main_commit().layer_tree_host = layer_tree_host; | |
| 746 impl().scheduler->NotifyReadyToCommit(); | |
| 747 } | |
| 748 | |
| 749 void ThreadProxy::BeginMainFrameAbortedOnImpl( | |
| 750 CommitEarlyOutReason reason, | |
| 751 base::TimeTicks main_thread_start_time) { | |
| 752 TRACE_EVENT1("cc", "ThreadProxy::BeginMainFrameAbortedOnImplThread", "reason", | |
| 753 CommitEarlyOutReasonToString(reason)); | |
| 754 DCHECK(task_runner_provider_->IsImplThread()); | |
| 755 DCHECK(impl().scheduler); | |
| 756 DCHECK(impl().scheduler->CommitPending()); | |
| 757 DCHECK(!impl().layer_tree_host_impl->pending_tree()); | |
| 758 | |
| 759 if (CommitEarlyOutHandledCommit(reason)) { | |
| 760 SetInputThrottledUntilCommitOnImpl(false); | |
| 761 impl().last_processed_begin_main_frame_args = | |
| 762 impl().last_begin_main_frame_args; | |
| 763 } | |
| 764 impl().layer_tree_host_impl->BeginMainFrameAborted(reason); | |
| 765 impl().scheduler->NotifyBeginMainFrameStarted(main_thread_start_time); | |
| 766 impl().scheduler->BeginMainFrameAborted(reason); | |
| 767 } | |
| 768 | |
| 769 void ThreadProxy::ScheduledActionCommit() { | |
| 770 TRACE_EVENT0("cc", "ThreadProxy::ScheduledActionCommit"); | |
| 771 DCHECK(task_runner_provider_->IsImplThread()); | |
| 772 DCHECK(task_runner_provider_->IsMainThreadBlocked()); | |
| 773 DCHECK(impl().commit_completion_event); | |
| 774 DCHECK(blocked_main_commit().layer_tree_host); | |
| 775 | |
| 776 impl().layer_tree_host_impl->BeginCommit(); | |
| 777 blocked_main_commit().layer_tree_host->FinishCommitOnImplThread( | |
| 778 impl().layer_tree_host_impl.get()); | |
| 779 | |
| 780 // Remove the LayerTreeHost reference before the completion event is signaled | |
| 781 // and cleared. This is necessary since blocked_main_commit() allows access | |
| 782 // only while we have the completion event to ensure the main thread is | |
| 783 // blocked for a commit. | |
| 784 blocked_main_commit().layer_tree_host = nullptr; | |
| 785 | |
| 786 if (impl().next_commit_waits_for_activation) { | |
| 787 // For some layer types in impl-side painting, the commit is held until | |
| 788 // the sync tree is activated. It's also possible that the | |
| 789 // sync tree has already activated if there was no work to be done. | |
| 790 TRACE_EVENT_INSTANT0("cc", "HoldCommit", TRACE_EVENT_SCOPE_THREAD); | |
| 791 } else { | |
| 792 impl().commit_completion_event->Signal(); | |
| 793 impl().commit_completion_event = nullptr; | |
| 794 } | |
| 795 | |
| 796 impl().scheduler->DidCommit(); | |
| 797 | |
| 798 // Delay this step until afer the main thread has been released as it's | |
| 799 // often a good bit of work to update the tree and prepare the new frame. | |
| 800 impl().layer_tree_host_impl->CommitComplete(); | |
| 801 | |
| 802 SetInputThrottledUntilCommitOnImpl(false); | |
| 803 | |
| 804 impl().next_frame_is_newly_committed_frame = true; | |
| 805 } | |
| 806 | |
| 807 void ThreadProxy::ScheduledActionActivateSyncTree() { | |
| 808 TRACE_EVENT0("cc", "ThreadProxy::ScheduledActionActivateSyncTree"); | |
| 809 DCHECK(task_runner_provider_->IsImplThread()); | |
| 810 impl().layer_tree_host_impl->ActivateSyncTree(); | |
| 811 } | |
| 812 | |
| 813 void ThreadProxy::ScheduledActionBeginOutputSurfaceCreation() { | |
| 814 TRACE_EVENT0("cc", "ThreadProxy::ScheduledActionBeginOutputSurfaceCreation"); | |
| 815 DCHECK(task_runner_provider_->IsImplThread()); | |
| 816 impl().channel_impl->RequestNewOutputSurface(); | |
| 817 } | |
| 818 | |
| 819 DrawResult ThreadProxy::DrawSwapInternal(bool forced_draw) { | |
| 820 TRACE_EVENT_SYNTHETIC_DELAY("cc.DrawAndSwap"); | |
| 821 DrawResult result; | |
| 822 | |
| 823 DCHECK(task_runner_provider_->IsImplThread()); | |
| 824 DCHECK(impl().layer_tree_host_impl.get()); | |
| 825 | |
| 826 base::AutoReset<bool> mark_inside(&impl().inside_draw, true); | |
| 827 | |
| 828 if (impl().layer_tree_host_impl->pending_tree()) { | |
| 829 bool update_lcd_text = false; | |
| 830 impl().layer_tree_host_impl->pending_tree()->UpdateDrawProperties( | |
| 831 update_lcd_text); | |
| 832 } | |
| 833 | |
| 834 // This method is called on a forced draw, regardless of whether we are able | |
| 835 // to produce a frame, as the calling site on main thread is blocked until its | |
| 836 // request completes, and we signal completion here. If CanDraw() is false, we | |
| 837 // will indicate success=false to the caller, but we must still signal | |
| 838 // completion to avoid deadlock. | |
| 839 | |
| 840 // We guard PrepareToDraw() with CanDraw() because it always returns a valid | |
| 841 // frame, so can only be used when such a frame is possible. Since | |
| 842 // DrawLayers() depends on the result of PrepareToDraw(), it is guarded on | |
| 843 // CanDraw() as well. | |
| 844 | |
| 845 LayerTreeHostImpl::FrameData frame; | |
| 846 bool draw_frame = false; | |
| 847 | |
| 848 if (impl().layer_tree_host_impl->CanDraw()) { | |
| 849 result = impl().layer_tree_host_impl->PrepareToDraw(&frame); | |
| 850 draw_frame = forced_draw || result == DRAW_SUCCESS; | |
| 851 } else { | |
| 852 result = DRAW_ABORTED_CANT_DRAW; | |
| 853 } | |
| 854 | |
| 855 if (draw_frame) { | |
| 856 impl().layer_tree_host_impl->DrawLayers(&frame); | |
| 857 result = DRAW_SUCCESS; | |
| 858 } else { | |
| 859 DCHECK_NE(DRAW_SUCCESS, result); | |
| 860 } | |
| 861 impl().layer_tree_host_impl->DidDrawAllLayers(frame); | |
| 862 | |
| 863 bool start_ready_animations = draw_frame; | |
| 864 impl().layer_tree_host_impl->UpdateAnimationState(start_ready_animations); | |
| 865 | |
| 866 if (draw_frame) | |
| 867 impl().layer_tree_host_impl->SwapBuffers(frame); | |
| 868 | |
| 869 // Tell the main thread that the the newly-commited frame was drawn. | |
| 870 if (impl().next_frame_is_newly_committed_frame) { | |
| 871 impl().next_frame_is_newly_committed_frame = false; | |
| 872 impl().channel_impl->DidCommitAndDrawFrame(); | |
| 873 } | |
| 874 | |
| 875 DCHECK_NE(INVALID_RESULT, result); | |
| 876 return result; | |
| 877 } | |
| 878 | |
| 879 void ThreadProxy::ScheduledActionPrepareTiles() { | |
| 880 TRACE_EVENT0("cc", "ThreadProxy::ScheduledActionPrepareTiles"); | |
| 881 impl().layer_tree_host_impl->PrepareTiles(); | |
| 882 } | |
| 883 | |
| 884 DrawResult ThreadProxy::ScheduledActionDrawAndSwapIfPossible() { | |
| 885 TRACE_EVENT0("cc", "ThreadProxy::ScheduledActionDrawAndSwap"); | |
| 886 | |
| 887 // SchedulerStateMachine::DidDrawIfPossibleCompleted isn't set up to | |
| 888 // handle DRAW_ABORTED_CANT_DRAW. Moreover, the scheduler should | |
| 889 // never generate this call when it can't draw. | |
| 890 DCHECK(impl().layer_tree_host_impl->CanDraw()); | |
| 891 | |
| 892 bool forced_draw = false; | |
| 893 return DrawSwapInternal(forced_draw); | |
| 894 } | |
| 895 | |
| 896 DrawResult ThreadProxy::ScheduledActionDrawAndSwapForced() { | |
| 897 TRACE_EVENT0("cc", "ThreadProxy::ScheduledActionDrawAndSwapForced"); | |
| 898 bool forced_draw = true; | |
| 899 return DrawSwapInternal(forced_draw); | |
| 900 } | |
| 901 | |
| 902 void ThreadProxy::ScheduledActionInvalidateOutputSurface() { | |
| 903 TRACE_EVENT0("cc", "ThreadProxy::ScheduledActionInvalidateOutputSurface"); | |
| 904 DCHECK(impl().layer_tree_host_impl->output_surface()); | |
| 905 impl().layer_tree_host_impl->output_surface()->Invalidate(); | |
| 906 } | |
| 907 | |
| 908 void ThreadProxy::DidFinishImplFrame() { | |
| 909 impl().layer_tree_host_impl->DidFinishImplFrame(); | |
| 910 } | |
| 911 | |
| 912 void ThreadProxy::SendBeginFramesToChildren(const BeginFrameArgs& args) { | |
| 913 NOTREACHED() << "Only used by SingleThreadProxy"; | |
| 914 } | |
| 915 | |
| 916 void ThreadProxy::SetAuthoritativeVSyncInterval( | |
| 917 const base::TimeDelta& interval) { | |
| 918 NOTREACHED() << "Only used by SingleThreadProxy"; | |
| 919 } | |
| 920 | |
| 921 void ThreadProxy::DidCommitAndDrawFrame() { | |
| 922 DCHECK(task_runner_provider_->IsMainThread()); | |
| 923 main().layer_tree_host->DidCommitAndDrawFrame(); | |
| 924 } | |
| 925 | |
| 926 void ThreadProxy::DidCompleteSwapBuffers() { | |
| 927 DCHECK(task_runner_provider_->IsMainThread()); | |
| 928 main().layer_tree_host->DidCompleteSwapBuffers(); | |
| 929 } | |
| 930 | |
| 931 void ThreadProxy::SetAnimationEvents(scoped_ptr<AnimationEventsVector> events) { | |
| 932 TRACE_EVENT0("cc", "ThreadProxy::SetAnimationEvents"); | |
| 933 DCHECK(task_runner_provider_->IsMainThread()); | |
| 934 main().layer_tree_host->SetAnimationEvents(std::move(events)); | |
| 935 } | |
| 936 | |
| 937 void ThreadProxy::InitializeImplOnImpl(CompletionEvent* completion, | |
| 938 LayerTreeHost* layer_tree_host) { | |
| 939 TRACE_EVENT0("cc", "ThreadProxy::InitializeImplOnImplThread"); | |
| 940 DCHECK(task_runner_provider_->IsImplThread()); | |
| 941 DCHECK(task_runner_provider_->IsMainThreadBlocked()); | |
| 942 DCHECK(layer_tree_host); | |
| 943 | |
| 944 // TODO(khushalsagar): ThreadedChannel will create ProxyImpl here and pass a | |
| 945 // reference to itself. | |
| 946 impl().channel_impl = threaded_channel_.get(); | |
| 947 | |
| 948 impl().layer_tree_host_impl = layer_tree_host->CreateLayerTreeHostImpl(this); | |
| 949 | |
| 950 SchedulerSettings scheduler_settings( | |
| 951 layer_tree_host->settings().ToSchedulerSettings()); | |
| 952 | |
| 953 scoped_ptr<CompositorTimingHistory> compositor_timing_history( | |
| 954 new CompositorTimingHistory(CompositorTimingHistory::RENDERER_UMA, | |
| 955 impl().rendering_stats_instrumentation)); | |
| 956 | |
| 957 impl().scheduler = | |
| 958 Scheduler::Create(this, scheduler_settings, impl().layer_tree_host_id, | |
| 959 task_runner_provider_->ImplThreadTaskRunner(), | |
| 960 impl().external_begin_frame_source.get(), | |
| 961 std::move(compositor_timing_history)); | |
| 962 | |
| 963 DCHECK_EQ(impl().scheduler->visible(), | |
| 964 impl().layer_tree_host_impl->visible()); | |
| 965 impl_thread_weak_ptr_ = impl().weak_factory.GetWeakPtr(); | |
| 966 completion->Signal(); | |
| 967 } | |
| 968 | |
| 969 void ThreadProxy::InitializeOutputSurfaceOnImpl(OutputSurface* output_surface) { | |
| 970 TRACE_EVENT0("cc", "ThreadProxy::InitializeOutputSurfaceOnImplThread"); | |
| 971 DCHECK(task_runner_provider_->IsImplThread()); | |
| 972 | |
| 973 LayerTreeHostImpl* host_impl = impl().layer_tree_host_impl.get(); | |
| 974 bool success = host_impl->InitializeRenderer(output_surface); | |
| 975 RendererCapabilities capabilities; | |
| 976 if (success) { | |
| 977 capabilities = | |
| 978 host_impl->GetRendererCapabilities().MainThreadCapabilities(); | |
| 979 } | |
| 980 | |
| 981 impl().channel_impl->DidInitializeOutputSurface(success, capabilities); | |
| 982 | |
| 983 if (success) | |
| 984 impl().scheduler->DidCreateAndInitializeOutputSurface(); | |
| 985 } | |
| 986 | |
| 987 void ThreadProxy::ReleaseOutputSurfaceOnImpl(CompletionEvent* completion) { | |
| 988 DCHECK(task_runner_provider_->IsImplThread()); | |
| 989 | |
| 990 // Unlike DidLoseOutputSurfaceOnImplThread, we don't need to call | |
| 991 // LayerTreeHost::DidLoseOutputSurface since it already knows. | |
| 992 impl().scheduler->DidLoseOutputSurface(); | |
| 993 impl().layer_tree_host_impl->ReleaseOutputSurface(); | |
| 994 completion->Signal(); | |
| 995 } | |
| 996 | |
| 997 void ThreadProxy::FinishGLOnImpl(CompletionEvent* completion) { | |
| 998 TRACE_EVENT0("cc", "ThreadProxy::FinishGLOnImplThread"); | |
| 999 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1000 if (impl().layer_tree_host_impl->output_surface()) { | |
| 1001 ContextProvider* context_provider = | |
| 1002 impl().layer_tree_host_impl->output_surface()->context_provider(); | |
| 1003 if (context_provider) | |
| 1004 context_provider->ContextGL()->Finish(); | |
| 1005 } | |
| 1006 completion->Signal(); | |
| 1007 } | |
| 1008 | |
| 1009 void ThreadProxy::LayerTreeHostClosedOnImpl(CompletionEvent* completion) { | |
| 1010 TRACE_EVENT0("cc", "ThreadProxy::LayerTreeHostClosedOnImplThread"); | |
| 1011 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1012 DCHECK(task_runner_provider_->IsMainThreadBlocked()); | |
| 1013 impl().scheduler = nullptr; | |
| 1014 impl().external_begin_frame_source = nullptr; | |
| 1015 impl().layer_tree_host_impl = nullptr; | |
| 1016 impl().weak_factory.InvalidateWeakPtrs(); | |
| 1017 // We need to explicitly shutdown the notifier to destroy any weakptrs it is | |
| 1018 // holding while still on the compositor thread. This also ensures any | |
| 1019 // callbacks holding a ThreadProxy pointer are cancelled. | |
| 1020 impl().smoothness_priority_expiration_notifier.Shutdown(); | |
| 1021 completion->Signal(); | |
| 1022 } | |
| 1023 | |
| 1024 bool ThreadProxy::MainFrameWillHappenForTesting() { | |
| 1025 DCHECK(task_runner_provider_->IsMainThread()); | |
| 1026 bool main_frame_will_happen = false; | |
| 1027 { | |
| 1028 DebugScopedSetMainThreadBlocked main_thread_blocked(task_runner_provider_); | |
| 1029 CompletionEvent completion; | |
| 1030 main().channel_main->MainFrameWillHappenOnImplForTesting( | |
| 1031 &completion, &main_frame_will_happen); | |
| 1032 completion.Wait(); | |
| 1033 } | |
| 1034 return main_frame_will_happen; | |
| 1035 } | |
| 1036 | |
| 1037 void ThreadProxy::SetChildrenNeedBeginFrames(bool children_need_begin_frames) { | |
| 1038 NOTREACHED() << "Only used by SingleThreadProxy"; | |
| 1039 } | |
| 1040 | |
| 1041 void ThreadProxy::MainFrameWillHappenOnImplForTesting( | |
| 1042 CompletionEvent* completion, | |
| 1043 bool* main_frame_will_happen) { | |
| 1044 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1045 if (impl().layer_tree_host_impl->output_surface()) { | |
| 1046 *main_frame_will_happen = impl().scheduler->MainFrameForTestingWillHappen(); | |
| 1047 } else { | |
| 1048 *main_frame_will_happen = false; | |
| 1049 } | |
| 1050 completion->Signal(); | |
| 1051 } | |
| 1052 | |
| 1053 void ThreadProxy::RenewTreePriority() { | |
| 1054 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1055 bool smoothness_takes_priority = | |
| 1056 impl().layer_tree_host_impl->pinch_gesture_active() || | |
| 1057 impl().layer_tree_host_impl->page_scale_animation_active() || | |
| 1058 impl().layer_tree_host_impl->IsActivelyScrolling(); | |
| 1059 | |
| 1060 // Schedule expiration if smoothness currently takes priority. | |
| 1061 if (smoothness_takes_priority) | |
| 1062 impl().smoothness_priority_expiration_notifier.Schedule(); | |
| 1063 | |
| 1064 // We use the same priority for both trees by default. | |
| 1065 TreePriority tree_priority = SAME_PRIORITY_FOR_BOTH_TREES; | |
| 1066 | |
| 1067 // Smoothness takes priority if we have an expiration for it scheduled. | |
| 1068 if (impl().smoothness_priority_expiration_notifier.HasPendingNotification()) | |
| 1069 tree_priority = SMOOTHNESS_TAKES_PRIORITY; | |
| 1070 | |
| 1071 // New content always takes priority when there is an invalid viewport size or | |
| 1072 // ui resources have been evicted. | |
| 1073 if (impl().layer_tree_host_impl->active_tree()->ViewportSizeInvalid() || | |
| 1074 impl().layer_tree_host_impl->EvictedUIResourcesExist() || | |
| 1075 impl().input_throttled_until_commit) { | |
| 1076 // Once we enter NEW_CONTENTS_TAKES_PRIORITY mode, visible tiles on active | |
| 1077 // tree might be freed. We need to set RequiresHighResToDraw to ensure that | |
| 1078 // high res tiles will be required to activate pending tree. | |
| 1079 impl().layer_tree_host_impl->SetRequiresHighResToDraw(); | |
| 1080 tree_priority = NEW_CONTENT_TAKES_PRIORITY; | |
| 1081 } | |
| 1082 | |
| 1083 impl().layer_tree_host_impl->SetTreePriority(tree_priority); | |
| 1084 | |
| 1085 // Only put the scheduler in impl latency prioritization mode if we don't | |
| 1086 // have a scroll listener. This gives the scroll listener a better chance of | |
| 1087 // handling scroll updates within the same frame. The tree itself is still | |
| 1088 // kept in prefer smoothness mode to allow checkerboarding. | |
| 1089 ScrollHandlerState scroll_handler_state = | |
| 1090 impl().layer_tree_host_impl->scroll_affects_scroll_handler() | |
| 1091 ? ScrollHandlerState::SCROLL_AFFECTS_SCROLL_HANDLER | |
| 1092 : ScrollHandlerState::SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER; | |
| 1093 impl().scheduler->SetTreePrioritiesAndScrollState(tree_priority, | |
| 1094 scroll_handler_state); | |
| 1095 | |
| 1096 // Notify the the client of this compositor via the output surface. | |
| 1097 // TODO(epenner): Route this to compositor-thread instead of output-surface | |
| 1098 // after GTFO refactor of compositor-thread (http://crbug/170828). | |
| 1099 if (impl().layer_tree_host_impl->output_surface()) { | |
| 1100 impl() | |
| 1101 .layer_tree_host_impl->output_surface() | |
| 1102 ->UpdateSmoothnessTakesPriority(tree_priority == | |
| 1103 SMOOTHNESS_TAKES_PRIORITY); | |
| 1104 } | |
| 1105 } | |
| 1106 | |
| 1107 void ThreadProxy::PostDelayedAnimationTaskOnImplThread( | |
| 1108 const base::Closure& task, | |
| 1109 base::TimeDelta delay) { | |
| 1110 task_runner_provider_->ImplThreadTaskRunner()->PostDelayedTask(FROM_HERE, | |
| 1111 task, delay); | |
| 1112 } | |
| 1113 | |
| 1114 void ThreadProxy::DidActivateSyncTree() { | |
| 1115 TRACE_EVENT0("cc", "ThreadProxy::DidActivateSyncTreeOnImplThread"); | |
| 1116 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1117 | |
| 1118 if (impl().next_commit_waits_for_activation) { | |
| 1119 TRACE_EVENT_INSTANT0( | |
| 1120 "cc", "ReleaseCommitbyActivation", TRACE_EVENT_SCOPE_THREAD); | |
| 1121 DCHECK(impl().commit_completion_event); | |
| 1122 impl().commit_completion_event->Signal(); | |
| 1123 impl().commit_completion_event = nullptr; | |
| 1124 impl().next_commit_waits_for_activation = false; | |
| 1125 } | |
| 1126 | |
| 1127 impl().last_processed_begin_main_frame_args = | |
| 1128 impl().last_begin_main_frame_args; | |
| 1129 } | |
| 1130 | |
| 1131 void ThreadProxy::WillPrepareTiles() { | |
| 1132 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1133 impl().scheduler->WillPrepareTiles(); | |
| 1134 } | |
| 1135 | |
| 1136 void ThreadProxy::DidPrepareTiles() { | |
| 1137 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1138 impl().scheduler->DidPrepareTiles(); | |
| 1139 } | |
| 1140 | |
| 1141 void ThreadProxy::DidCompletePageScaleAnimationOnImplThread() { | |
| 1142 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1143 impl().channel_impl->DidCompletePageScaleAnimation(); | |
| 1144 } | |
| 1145 | |
| 1146 void ThreadProxy::OnDrawForOutputSurface() { | |
| 1147 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1148 impl().scheduler->OnDrawForOutputSurface(); | |
| 1149 } | |
| 1150 | |
| 1151 void ThreadProxy::UpdateTopControlsState(TopControlsState constraints, | |
| 1152 TopControlsState current, | |
| 1153 bool animate) { | |
| 1154 main().channel_main->UpdateTopControlsStateOnImpl(constraints, current, | |
| 1155 animate); | |
| 1156 } | |
| 1157 | |
| 1158 void ThreadProxy::UpdateTopControlsStateOnImpl(TopControlsState constraints, | |
| 1159 TopControlsState current, | |
| 1160 bool animate) { | |
| 1161 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1162 impl().layer_tree_host_impl->top_controls_manager()->UpdateTopControlsState( | |
| 1163 constraints, current, animate); | |
| 1164 } | |
| 1165 | |
| 1166 void ThreadProxy::PostFrameTimingEventsOnImplThread( | |
| 1167 scoped_ptr<FrameTimingTracker::CompositeTimingSet> composite_events, | |
| 1168 scoped_ptr<FrameTimingTracker::MainFrameTimingSet> main_frame_events) { | |
| 1169 DCHECK(task_runner_provider_->IsImplThread()); | |
| 1170 impl().channel_impl->PostFrameTimingEventsOnMain( | |
| 1171 std::move(composite_events), std::move(main_frame_events)); | |
| 1172 } | |
| 1173 | |
| 1174 void ThreadProxy::PostFrameTimingEventsOnMain( | |
| 1175 scoped_ptr<FrameTimingTracker::CompositeTimingSet> composite_events, | |
| 1176 scoped_ptr<FrameTimingTracker::MainFrameTimingSet> main_frame_events) { | |
| 1177 DCHECK(task_runner_provider_->IsMainThread()); | |
| 1178 main().layer_tree_host->RecordFrameTimingEvents(std::move(composite_events), | |
| 1179 std::move(main_frame_events)); | |
| 1180 } | |
| 1181 | |
| 1182 base::WeakPtr<ProxyMain> ThreadProxy::GetMainWeakPtr() { | |
| 1183 return main_thread_weak_ptr_; | |
| 1184 } | |
| 1185 | |
| 1186 base::WeakPtr<ProxyImpl> ThreadProxy::GetImplWeakPtr() { | |
| 1187 return impl_thread_weak_ptr_; | |
| 1188 } | |
| 1189 | |
| 1190 } // namespace cc | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1417053005:
cc: Split ThreadProxy into ProxyMain and ProxyImpl (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master