cc/test/layer_tree_test.cc

   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/test/layer_tree_test.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/location.h"
   9 #include "base/single_thread_task_runner.h"
  10 #include "base/thread_task_runner_handle.h"
  11 #include "cc/animation/animation.h"
  12 #include "cc/animation/animation_host.h"
  13 #include "cc/animation/animation_registrar.h"
  14 #include "cc/animation/layer_animation_controller.h"
  15 #include "cc/animation/timing_function.h"
  16 #include "cc/base/switches.h"
  17 #include "cc/input/input_handler.h"
  18 #include "cc/layers/layer.h"
  19 #include "cc/layers/layer_impl.h"
  20 #include "cc/test/animation_test_common.h"
  21 #include "cc/test/begin_frame_args_test.h"
  22 #include "cc/test/fake_external_begin_frame_source.h"
  23 #include "cc/test/fake_layer_tree_host_client.h"
  24 #include "cc/test/fake_output_surface.h"
  25 #include "cc/test/test_context_provider.h"
  26 #include "cc/test/test_gpu_memory_buffer_manager.h"
  27 #include "cc/test/test_shared_bitmap_manager.h"
  28 #include "cc/test/test_task_graph_runner.h"
  29 #include "cc/trees/layer_tree_host_client.h"
  30 #include "cc/trees/layer_tree_host_impl.h"
  31 #include "cc/trees/layer_tree_host_single_thread_client.h"
  32 #include "cc/trees/layer_tree_impl.h"
  33 #include "cc/trees/single_thread_proxy.h"
  34 #include "cc/trees/thread_proxy.h"
  35 #include "testing/gmock/include/gmock/gmock.h"
  36 #include "ui/gfx/geometry/size_conversions.h"
  37
  38 namespace cc {
  39
  40 void CreateVirtualViewportLayers(Layer* root_layer,
  41                                  scoped_refptr<Layer> outer_scroll_layer,
  42                                  const gfx::Size& inner_bounds,
  43                                  const gfx::Size& outer_bounds,
  44                                  LayerTreeHost* host,
  45                                  const LayerSettings& layer_settings) {
  46     scoped_refptr<Layer> inner_viewport_container_layer =
  47         Layer::Create(layer_settings);
  48     scoped_refptr<Layer> inner_viewport_scroll_layer =
  49         Layer::Create(layer_settings);
  50     scoped_refptr<Layer> outer_viewport_container_layer =
  51         Layer::Create(layer_settings);
  52     scoped_refptr<Layer> page_scale_layer = Layer::Create(layer_settings);
  53
  54     root_layer->AddChild(inner_viewport_container_layer);
  55     inner_viewport_container_layer->AddChild(page_scale_layer);
  56     page_scale_layer->AddChild(inner_viewport_scroll_layer);
  57     inner_viewport_scroll_layer->AddChild(outer_viewport_container_layer);
  58     outer_viewport_container_layer->AddChild(outer_scroll_layer);
  59
  60     inner_viewport_scroll_layer->SetScrollClipLayerId(
  61         inner_viewport_container_layer->id());
  62     outer_scroll_layer->SetScrollClipLayerId(
  63         outer_viewport_container_layer->id());
  64
  65     inner_viewport_container_layer->SetBounds(inner_bounds);
  66     inner_viewport_scroll_layer->SetBounds(outer_bounds);
  67     outer_viewport_container_layer->SetBounds(outer_bounds);
  68
  69     inner_viewport_scroll_layer->SetIsContainerForFixedPositionLayers(true);
  70     outer_scroll_layer->SetIsContainerForFixedPositionLayers(true);
  71     host->RegisterViewportLayers(NULL,
  72                                  root_layer,
  73                                  inner_viewport_scroll_layer,
  74                                  outer_scroll_layer);
  75 }
  76
  77 void CreateVirtualViewportLayers(Layer* root_layer,
  78                                  const gfx::Size& inner_bounds,
  79                                  const gfx::Size& outer_bounds,
  80                                  const gfx::Size& scroll_bounds,
  81                                  LayerTreeHost* host,
  82                                  const LayerSettings& layer_settings) {
  83     scoped_refptr<Layer> outer_viewport_scroll_layer =
  84         Layer::Create(layer_settings);
  85
  86     outer_viewport_scroll_layer->SetBounds(scroll_bounds);
  87     outer_viewport_scroll_layer->SetIsDrawable(true);
  88     CreateVirtualViewportLayers(root_layer,
  89                                 outer_viewport_scroll_layer,
  90                                 inner_bounds,
  91                                 outer_bounds,
  92                                 host,
  93                                 layer_settings);
  94 }
  95
  96 TestHooks::TestHooks() {}
  97
  98 TestHooks::~TestHooks() {}
  99
 100 DrawResult TestHooks::PrepareToDrawOnThread(
 101     LayerTreeHostImpl* host_impl,
 102     LayerTreeHostImpl::FrameData* frame_data,
 103     DrawResult draw_result) {
 104   return draw_result;
 105 }
 106
 107 void TestHooks::CreateResourceAndTileTaskWorkerPool(
 108     LayerTreeHostImpl* host_impl,
 109     scoped_ptr<TileTaskWorkerPool>* tile_task_worker_pool,
 110     scoped_ptr<ResourcePool>* resource_pool) {
 111   host_impl->LayerTreeHostImpl::CreateResourceAndTileTaskWorkerPool(
 112       tile_task_worker_pool, resource_pool);
 113 }
 114
 115 // Adapts ThreadProxy for test. Injects test hooks for testing.
 116 class ThreadProxyForTest : public ThreadProxy {
 117  public:
 118   static scoped_ptr<Proxy> Create(
 119       TestHooks* test_hooks,
 120       LayerTreeHost* host,
 121       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
 122       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
 123       scoped_ptr<BeginFrameSource> external_begin_frame_source) {
 124     return make_scoped_ptr(new ThreadProxyForTest(
 125         test_hooks,
 126         host,
 127         main_task_runner,
 128         impl_task_runner,
 129         external_begin_frame_source.Pass()));
 130   }
 131
 132   ~ThreadProxyForTest() override {}
 133
 134  private:
 135   TestHooks* test_hooks_;
 136
 137   void SetNeedsUpdateLayers() override {
 138     ThreadProxy::SetNeedsUpdateLayers();
 139     test_hooks_->DidSetNeedsUpdateLayers();
 140   }
 141
 142   void ScheduledActionSendBeginMainFrame() override {
 143     test_hooks_->ScheduledActionWillSendBeginMainFrame();
 144     ThreadProxy::ScheduledActionSendBeginMainFrame();
 145     test_hooks_->ScheduledActionSendBeginMainFrame();
 146   }
 147
 148   DrawResult ScheduledActionDrawAndSwapIfPossible() override {
 149     DrawResult result = ThreadProxy::ScheduledActionDrawAndSwapIfPossible();
 150     test_hooks_->ScheduledActionDrawAndSwapIfPossible();
 151     return result;
 152   }
 153
 154   void ScheduledActionAnimate() override {
 155     ThreadProxy::ScheduledActionAnimate();
 156     test_hooks_->ScheduledActionAnimate();
 157   }
 158
 159   void ScheduledActionCommit() override {
 160     ThreadProxy::ScheduledActionCommit();
 161     test_hooks_->ScheduledActionCommit();
 162   }
 163
 164   void ScheduledActionBeginOutputSurfaceCreation() override {
 165     ThreadProxy::ScheduledActionBeginOutputSurfaceCreation();
 166     test_hooks_->ScheduledActionBeginOutputSurfaceCreation();
 167   }
 168
 169   void ScheduledActionPrepareTiles() override {
 170     ThreadProxy::ScheduledActionPrepareTiles();
 171     test_hooks_->ScheduledActionPrepareTiles();
 172   }
 173
 174   void ScheduledActionInvalidateOutputSurface() override {
 175     ThreadProxy::ScheduledActionInvalidateOutputSurface();
 176     test_hooks_->ScheduledActionInvalidateOutputSurface();
 177   }
 178
 179   void SendBeginMainFrameNotExpectedSoon() override {
 180     ThreadProxy::SendBeginMainFrameNotExpectedSoon();
 181     test_hooks_->SendBeginMainFrameNotExpectedSoon();
 182   }
 183
 184   ThreadProxyForTest(
 185       TestHooks* test_hooks,
 186       LayerTreeHost* host,
 187       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
 188       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
 189       scoped_ptr<BeginFrameSource> external_begin_frame_source)
 190       : ThreadProxy(host, main_task_runner,
 191                     impl_task_runner,
 192                     external_begin_frame_source.Pass()),
 193         test_hooks_(test_hooks) {}
 194 };
 195
 196 // Adapts ThreadProxy for test. Injects test hooks for testing.
 197 class SingleThreadProxyForTest : public SingleThreadProxy {
 198  public:
 199   static scoped_ptr<Proxy> Create(
 200       TestHooks* test_hooks,
 201       LayerTreeHost* host,
 202       LayerTreeHostSingleThreadClient* client,
 203       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
 204       scoped_ptr<BeginFrameSource> external_begin_frame_source) {
 205     return make_scoped_ptr(new SingleThreadProxyForTest(
 206         test_hooks, host, client, main_task_runner,
 207         external_begin_frame_source.Pass()));
 208   }
 209
 210   ~SingleThreadProxyForTest() override {}
 211
 212  private:
 213   TestHooks* test_hooks_;
 214
 215   void ScheduledActionSendBeginMainFrame() override {
 216     test_hooks_->ScheduledActionWillSendBeginMainFrame();
 217     SingleThreadProxy::ScheduledActionSendBeginMainFrame();
 218     test_hooks_->ScheduledActionSendBeginMainFrame();
 219   }
 220
 221   DrawResult ScheduledActionDrawAndSwapIfPossible() override {
 222     DrawResult result =
 223         SingleThreadProxy::ScheduledActionDrawAndSwapIfPossible();
 224     test_hooks_->ScheduledActionDrawAndSwapIfPossible();
 225     return result;
 226   }
 227
 228   void ScheduledActionAnimate() override {
 229     SingleThreadProxy::ScheduledActionAnimate();
 230     test_hooks_->ScheduledActionAnimate();
 231   }
 232
 233   void ScheduledActionCommit() override {
 234     SingleThreadProxy::ScheduledActionCommit();
 235     test_hooks_->ScheduledActionCommit();
 236   }
 237
 238   void ScheduledActionBeginOutputSurfaceCreation() override {
 239     SingleThreadProxy::ScheduledActionBeginOutputSurfaceCreation();
 240     test_hooks_->ScheduledActionBeginOutputSurfaceCreation();
 241   }
 242
 243   void ScheduledActionPrepareTiles() override {
 244     SingleThreadProxy::ScheduledActionPrepareTiles();
 245     test_hooks_->ScheduledActionPrepareTiles();
 246   }
 247
 248   void ScheduledActionInvalidateOutputSurface() override {
 249     SingleThreadProxy::ScheduledActionInvalidateOutputSurface();
 250     test_hooks_->ScheduledActionInvalidateOutputSurface();
 251   }
 252
 253   void SendBeginMainFrameNotExpectedSoon() override {
 254     SingleThreadProxy::SendBeginMainFrameNotExpectedSoon();
 255     test_hooks_->SendBeginMainFrameNotExpectedSoon();
 256   }
 257
 258   SingleThreadProxyForTest(
 259       TestHooks* test_hooks,
 260       LayerTreeHost* host,
 261       LayerTreeHostSingleThreadClient* client,
 262       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
 263       scoped_ptr<BeginFrameSource> external_begin_frame_source)
 264       : SingleThreadProxy(host, client, main_task_runner,
 265                           external_begin_frame_source.Pass()),
 266         test_hooks_(test_hooks) {}
 267 };
 268
 269 // Adapts LayerTreeHostImpl for test. Runs real code, then invokes test hooks.
 270 class LayerTreeHostImplForTesting : public LayerTreeHostImpl {
 271  public:
 272   static scoped_ptr<LayerTreeHostImplForTesting> Create(
 273       TestHooks* test_hooks,
 274       const LayerTreeSettings& settings,
 275       LayerTreeHostImplClient* host_impl_client,
 276       Proxy* proxy,
 277       SharedBitmapManager* shared_bitmap_manager,
 278       gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
 279       TaskGraphRunner* task_graph_runner,
 280       RenderingStatsInstrumentation* stats_instrumentation) {
 281     return make_scoped_ptr(new LayerTreeHostImplForTesting(
 282         test_hooks, settings, host_impl_client, proxy, shared_bitmap_manager,
 283         gpu_memory_buffer_manager, task_graph_runner, stats_instrumentation));
 284   }
 285
 286  protected:
 287   LayerTreeHostImplForTesting(
 288       TestHooks* test_hooks,
 289       const LayerTreeSettings& settings,
 290       LayerTreeHostImplClient* host_impl_client,
 291       Proxy* proxy,
 292       SharedBitmapManager* shared_bitmap_manager,
 293       gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
 294       TaskGraphRunner* task_graph_runner,
 295       RenderingStatsInstrumentation* stats_instrumentation)
 296       : LayerTreeHostImpl(settings,
 297                           host_impl_client,
 298                           proxy,
 299                           stats_instrumentation,
 300                           shared_bitmap_manager,
 301                           gpu_memory_buffer_manager,
 302                           task_graph_runner,
 303                           0),
 304         test_hooks_(test_hooks),
 305         block_notify_ready_to_activate_for_testing_(false),
 306         notify_ready_to_activate_was_blocked_(false) {}
 307
 308   void CreateResourceAndTileTaskWorkerPool(
 309       scoped_ptr<TileTaskWorkerPool>* tile_task_worker_pool,
 310       scoped_ptr<ResourcePool>* resource_pool) override {
 311     test_hooks_->CreateResourceAndTileTaskWorkerPool(
 312         this, tile_task_worker_pool, resource_pool);
 313   }
 314
 315   void WillBeginImplFrame(const BeginFrameArgs& args) override {
 316     LayerTreeHostImpl::WillBeginImplFrame(args);
 317     test_hooks_->WillBeginImplFrameOnThread(this, args);
 318   }
 319
 320   void DidFinishImplFrame() override {
 321     LayerTreeHostImpl::DidFinishImplFrame();
 322     test_hooks_->DidFinishImplFrameOnThread(this);
 323   }
 324
 325   void BeginMainFrameAborted(CommitEarlyOutReason reason) override {
 326     LayerTreeHostImpl::BeginMainFrameAborted(reason);
 327     test_hooks_->BeginMainFrameAbortedOnThread(this, reason);
 328   }
 329
 330   void BeginCommit() override {
 331     LayerTreeHostImpl::BeginCommit();
 332     test_hooks_->BeginCommitOnThread(this);
 333   }
 334
 335   void CommitComplete() override {
 336     LayerTreeHostImpl::CommitComplete();
 337     test_hooks_->CommitCompleteOnThread(this);
 338   }
 339
 340   DrawResult PrepareToDraw(FrameData* frame) override {
 341     DrawResult draw_result = LayerTreeHostImpl::PrepareToDraw(frame);
 342     return test_hooks_->PrepareToDrawOnThread(this, frame, draw_result);
 343   }
 344
 345   void DrawLayers(FrameData* frame) override {
 346     LayerTreeHostImpl::DrawLayers(frame);
 347     test_hooks_->DrawLayersOnThread(this);
 348   }
 349
 350   bool SwapBuffers(const LayerTreeHostImpl::FrameData& frame) override {
 351     bool result = LayerTreeHostImpl::SwapBuffers(frame);
 352     test_hooks_->SwapBuffersOnThread(this, result);
 353     return result;
 354   }
 355
 356   void DidSwapBuffersComplete() override {
 357     LayerTreeHostImpl::DidSwapBuffersComplete();
 358     test_hooks_->SwapBuffersCompleteOnThread(this);
 359   }
 360
 361   void ReclaimResources(const CompositorFrameAck* ack) override {
 362     LayerTreeHostImpl::ReclaimResources(ack);
 363   }
 364
 365   void NotifyReadyToActivate() override {
 366     if (block_notify_ready_to_activate_for_testing_) {
 367       notify_ready_to_activate_was_blocked_ = true;
 368     } else {
 369       LayerTreeHostImpl::NotifyReadyToActivate();
 370       test_hooks_->NotifyReadyToActivateOnThread(this);
 371     }
 372   }
 373
 374   void NotifyReadyToDraw() override {
 375     LayerTreeHostImpl::NotifyReadyToDraw();
 376     test_hooks_->NotifyReadyToDrawOnThread(this);
 377   }
 378
 379   void NotifyAllTileTasksCompleted() override {
 380     LayerTreeHostImpl::NotifyAllTileTasksCompleted();
 381     test_hooks_->NotifyAllTileTasksCompleted(this);
 382   }
 383
 384   void BlockNotifyReadyToActivateForTesting(bool block) override {
 385     CHECK(proxy()->ImplThreadTaskRunner())
 386         << "Not supported for single-threaded mode.";
 387     block_notify_ready_to_activate_for_testing_ = block;
 388     if (!block && notify_ready_to_activate_was_blocked_) {
 389       NotifyReadyToActivate();
 390       notify_ready_to_activate_was_blocked_ = false;
 391     }
 392   }
 393
 394   void ActivateSyncTree() override {
 395     test_hooks_->WillActivateTreeOnThread(this);
 396     LayerTreeHostImpl::ActivateSyncTree();
 397     DCHECK(!pending_tree());
 398     test_hooks_->DidActivateTreeOnThread(this);
 399   }
 400
 401   bool InitializeRenderer(scoped_ptr<OutputSurface> output_surface) override {
 402     bool success = LayerTreeHostImpl::InitializeRenderer(output_surface.Pass());
 403     test_hooks_->InitializedRendererOnThread(this, success);
 404     return success;
 405   }
 406
 407   void SetVisible(bool visible) override {
 408     LayerTreeHostImpl::SetVisible(visible);
 409     test_hooks_->DidSetVisibleOnImplTree(this, visible);
 410   }
 411
 412   void AnimateLayers(base::TimeTicks monotonic_time) override {
 413     test_hooks_->WillAnimateLayers(this, monotonic_time);
 414     LayerTreeHostImpl::AnimateLayers(monotonic_time);
 415     test_hooks_->AnimateLayers(this, monotonic_time);
 416   }
 417
 418   void UpdateAnimationState(bool start_ready_animations) override {
 419     LayerTreeHostImpl::UpdateAnimationState(start_ready_animations);
 420     bool has_unfinished_animation = false;
 421     AnimationRegistrar* registrar =
 422         animation_registrar() ? animation_registrar()
 423                               : animation_host()->animation_registrar();
 424     for (const auto& it :
 425          registrar->active_animation_controllers_for_testing()) {
 426       if (it.second->HasActiveAnimation()) {
 427         has_unfinished_animation = true;
 428         break;
 429       }
 430     }
 431     test_hooks_->UpdateAnimationState(this, has_unfinished_animation);
 432   }
 433
 434   void NotifyTileStateChanged(const Tile* tile) override {
 435     LayerTreeHostImpl::NotifyTileStateChanged(tile);
 436     test_hooks_->NotifyTileStateChangedOnThread(this, tile);
 437   }
 438
 439  private:
 440   TestHooks* test_hooks_;
 441   bool block_notify_ready_to_activate_for_testing_;
 442   bool notify_ready_to_activate_was_blocked_;
 443 };
 444
 445 // Implementation of LayerTreeHost callback interface.
 446 class LayerTreeHostClientForTesting : public LayerTreeHostClient,
 447                                       public LayerTreeHostSingleThreadClient {
 448  public:
 449   static scoped_ptr<LayerTreeHostClientForTesting> Create(
 450       TestHooks* test_hooks) {
 451     return make_scoped_ptr(new LayerTreeHostClientForTesting(test_hooks));
 452   }
 453   ~LayerTreeHostClientForTesting() override {}
 454
 455   void WillBeginMainFrame() override { test_hooks_->WillBeginMainFrame(); }
 456
 457   void DidBeginMainFrame() override { test_hooks_->DidBeginMainFrame(); }
 458
 459   void BeginMainFrame(const BeginFrameArgs& args) override {
 460     test_hooks_->BeginMainFrame(args);
 461   }
 462
 463   void Layout() override { test_hooks_->Layout(); }
 464
 465   void ApplyViewportDeltas(const gfx::Vector2dF& inner_delta,
 466                            const gfx::Vector2dF& outer_delta,
 467                            const gfx::Vector2dF& elastic_overscroll_delta,
 468                            float page_scale,
 469                            float top_controls_delta) override {
 470     test_hooks_->ApplyViewportDeltas(inner_delta, outer_delta,
 471                                      elastic_overscroll_delta, page_scale,
 472                                      top_controls_delta);
 473   }
 474
 475   void RequestNewOutputSurface() override {
 476     test_hooks_->RequestNewOutputSurface();
 477   }
 478
 479   void DidInitializeOutputSurface() override {
 480     test_hooks_->DidInitializeOutputSurface();
 481   }
 482
 483   void SendBeginFramesToChildren(const BeginFrameArgs& args) override {
 484     test_hooks_->SendBeginFramesToChildren(args);
 485   }
 486
 487   void DidFailToInitializeOutputSurface() override {
 488     test_hooks_->DidFailToInitializeOutputSurface();
 489     RequestNewOutputSurface();
 490   }
 491
 492   void WillCommit() override { test_hooks_->WillCommit(); }
 493
 494   void DidCommit() override { test_hooks_->DidCommit(); }
 495
 496   void DidCommitAndDrawFrame() override {
 497     test_hooks_->DidCommitAndDrawFrame();
 498   }
 499
 500   void DidCompleteSwapBuffers() override {
 501     test_hooks_->DidCompleteSwapBuffers();
 502   }
 503
 504   void DidPostSwapBuffers() override {}
 505   void DidAbortSwapBuffers() override {}
 506   void ScheduleComposite() override { test_hooks_->ScheduleComposite(); }
 507   void DidCompletePageScaleAnimation() override {}
 508   void BeginMainFrameNotExpectedSoon() override {}
 509
 510   void RecordFrameTimingEvents(
 511       scoped_ptr<FrameTimingTracker::CompositeTimingSet> composite_events,
 512       scoped_ptr<FrameTimingTracker::MainFrameTimingSet> main_frame_events)
 513       override {}
 514
 515  private:
 516   explicit LayerTreeHostClientForTesting(TestHooks* test_hooks)
 517       : test_hooks_(test_hooks) {}
 518
 519   TestHooks* test_hooks_;
 520 };
 521
 522 // Adapts LayerTreeHost for test. Injects LayerTreeHostImplForTesting.
 523 class LayerTreeHostForTesting : public LayerTreeHost {
 524  public:
 525   static scoped_ptr<LayerTreeHostForTesting> Create(
 526       TestHooks* test_hooks,
 527       LayerTreeHostClientForTesting* client,
 528       SharedBitmapManager* shared_bitmap_manager,
 529       gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
 530       TaskGraphRunner* task_graph_runner,
 531       const LayerTreeSettings& settings,
 532       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
 533       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
 534       scoped_ptr<BeginFrameSource> external_begin_frame_source) {
 535     LayerTreeHost::InitParams params;
 536     params.client = client;
 537     params.shared_bitmap_manager = shared_bitmap_manager;
 538     params.gpu_memory_buffer_manager = gpu_memory_buffer_manager;
 539     params.task_graph_runner = task_graph_runner;
 540     params.settings = &settings;
 541     scoped_ptr<LayerTreeHostForTesting> layer_tree_host(
 542         new LayerTreeHostForTesting(test_hooks, &params));
 543     if (impl_task_runner.get()) {
 544       layer_tree_host->InitializeForTesting(
 545           ThreadProxyForTest::Create(test_hooks,
 546                                      layer_tree_host.get(),
 547                                      main_task_runner,
 548                                      impl_task_runner,
 549                                      external_begin_frame_source.Pass()));
 550     } else {
 551       layer_tree_host->InitializeForTesting(
 552           SingleThreadProxyForTest::Create(
 553               test_hooks,
 554               layer_tree_host.get(),
 555               client,
 556               main_task_runner,
 557               external_begin_frame_source.Pass()));
 558     }
 559     return layer_tree_host.Pass();
 560   }
 561
 562   scoped_ptr<LayerTreeHostImpl> CreateLayerTreeHostImpl(
 563       LayerTreeHostImplClient* host_impl_client) override {
 564     return LayerTreeHostImplForTesting::Create(
 565         test_hooks_, settings(), host_impl_client, proxy(),
 566         shared_bitmap_manager(), gpu_memory_buffer_manager(),
 567         task_graph_runner(), rendering_stats_instrumentation());
 568   }
 569
 570   void SetNeedsCommit() override {
 571     if (!test_started_)
 572       return;
 573     LayerTreeHost::SetNeedsCommit();
 574   }
 575
 576   void SetNeedsUpdateLayers() override {
 577     if (!test_started_)
 578       return;
 579     LayerTreeHost::SetNeedsUpdateLayers();
 580   }
 581
 582   void set_test_started(bool started) { test_started_ = started; }
 583
 584  private:
 585   LayerTreeHostForTesting(TestHooks* test_hooks,
 586                           LayerTreeHost::InitParams* params)
 587       : LayerTreeHost(params), test_hooks_(test_hooks), test_started_(false) {}
 588
 589   TestHooks* test_hooks_;
 590   bool test_started_;
 591 };
 592
 593 LayerTreeTest::LayerTreeTest()
 594     : output_surface_(nullptr),
 595       external_begin_frame_source_(nullptr),
 596       beginning_(false),
 597       end_when_begin_returns_(false),
 598       timed_out_(false),
 599       scheduled_(false),
 600       started_(false),
 601       ended_(false),
 602       delegating_renderer_(false),
 603       verify_property_trees_(true),
 604       timeout_seconds_(0),
 605       weak_factory_(this) {
 606   main_thread_weak_ptr_ = weak_factory_.GetWeakPtr();
 607
 608   // Tests should timeout quickly unless --cc-layer-tree-test-no-timeout was
 609   // specified (for running in a debugger).
 610   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 611   if (!command_line->HasSwitch(switches::kCCLayerTreeTestNoTimeout))
 612     timeout_seconds_ = 5;
 613 }
 614
 615 LayerTreeTest::~LayerTreeTest() {}
 616
 617 void LayerTreeTest::EndTest() {
 618   if (ended_)
 619     return;
 620   ended_ = true;
 621
 622   // For the case where we EndTest during BeginTest(), set a flag to indicate
 623   // that the test should end the second BeginTest regains control.
 624   if (beginning_) {
 625     end_when_begin_returns_ = true;
 626   } else {
 627     main_task_runner_->PostTask(
 628         FROM_HERE,
 629         base::Bind(&LayerTreeTest::RealEndTest, main_thread_weak_ptr_));
 630   }
 631 }
 632
 633 void LayerTreeTest::EndTestAfterDelayMs(int delay_milliseconds) {
 634   main_task_runner_->PostDelayedTask(
 635       FROM_HERE,
 636       base::Bind(&LayerTreeTest::EndTest, main_thread_weak_ptr_),
 637       base::TimeDelta::FromMilliseconds(delay_milliseconds));
 638 }
 639
 640 void LayerTreeTest::PostAddAnimationToMainThread(
 641     Layer* layer_to_receive_animation) {
 642   main_task_runner_->PostTask(
 643       FROM_HERE,
 644       base::Bind(&LayerTreeTest::DispatchAddAnimation, main_thread_weak_ptr_,
 645                  base::Unretained(layer_to_receive_animation), 0.000004));
 646 }
 647
 648 void LayerTreeTest::PostAddInstantAnimationToMainThread(
 649     Layer* layer_to_receive_animation) {
 650   main_task_runner_->PostTask(
 651       FROM_HERE,
 652       base::Bind(&LayerTreeTest::DispatchAddAnimation,
 653                  main_thread_weak_ptr_,
 654                  base::Unretained(layer_to_receive_animation),
 655                  0.0));
 656 }
 657
 658 void LayerTreeTest::PostAddLongAnimationToMainThread(
 659     Layer* layer_to_receive_animation) {
 660   main_task_runner_->PostTask(
 661       FROM_HERE,
 662       base::Bind(&LayerTreeTest::DispatchAddAnimation,
 663                  main_thread_weak_ptr_,
 664                  base::Unretained(layer_to_receive_animation),
 665                  1.0));
 666 }
 667
 668 void LayerTreeTest::PostAddAnimationToMainThreadPlayer(
 669     AnimationPlayer* player_to_receive_animation) {
 670   main_task_runner_->PostTask(
 671       FROM_HERE,
 672       base::Bind(&LayerTreeTest::DispatchAddAnimationToPlayer,
 673                  main_thread_weak_ptr_,
 674                  base::Unretained(player_to_receive_animation), 0.000004));
 675 }
 676
 677 void LayerTreeTest::PostAddInstantAnimationToMainThreadPlayer(
 678     AnimationPlayer* player_to_receive_animation) {
 679   main_task_runner_->PostTask(
 680       FROM_HERE,
 681       base::Bind(&LayerTreeTest::DispatchAddAnimationToPlayer,
 682                  main_thread_weak_ptr_,
 683                  base::Unretained(player_to_receive_animation), 0.0));
 684 }
 685
 686 void LayerTreeTest::PostAddLongAnimationToMainThreadPlayer(
 687     AnimationPlayer* player_to_receive_animation) {
 688   main_task_runner_->PostTask(
 689       FROM_HERE,
 690       base::Bind(&LayerTreeTest::DispatchAddAnimationToPlayer,
 691                  main_thread_weak_ptr_,
 692                  base::Unretained(player_to_receive_animation), 1.0));
 693 }
 694
 695 void LayerTreeTest::PostSetDeferCommitsToMainThread(bool defer_commits) {
 696   main_task_runner_->PostTask(
 697       FROM_HERE,
 698       base::Bind(&LayerTreeTest::DispatchSetDeferCommits,
 699                  main_thread_weak_ptr_, defer_commits));
 700 }
 701
 702 void LayerTreeTest::PostSetNeedsCommitToMainThread() {
 703   main_task_runner_->PostTask(FROM_HERE,
 704                               base::Bind(&LayerTreeTest::DispatchSetNeedsCommit,
 705                                          main_thread_weak_ptr_));
 706 }
 707
 708 void LayerTreeTest::PostSetNeedsUpdateLayersToMainThread() {
 709   main_task_runner_->PostTask(
 710       FROM_HERE,
 711       base::Bind(&LayerTreeTest::DispatchSetNeedsUpdateLayers,
 712                  main_thread_weak_ptr_));
 713 }
 714
 715 void LayerTreeTest::PostSetNeedsRedrawToMainThread() {
 716   main_task_runner_->PostTask(FROM_HERE,
 717                               base::Bind(&LayerTreeTest::DispatchSetNeedsRedraw,
 718                                          main_thread_weak_ptr_));
 719 }
 720
 721 void LayerTreeTest::PostSetNeedsRedrawRectToMainThread(
 722     const gfx::Rect& damage_rect) {
 723   main_task_runner_->PostTask(
 724       FROM_HERE,
 725       base::Bind(&LayerTreeTest::DispatchSetNeedsRedrawRect,
 726                  main_thread_weak_ptr_,
 727                  damage_rect));
 728 }
 729
 730 void LayerTreeTest::PostSetVisibleToMainThread(bool visible) {
 731   main_task_runner_->PostTask(
 732       FROM_HERE,
 733       base::Bind(
 734           &LayerTreeTest::DispatchSetVisible, main_thread_weak_ptr_, visible));
 735 }
 736
 737 void LayerTreeTest::PostSetNextCommitForcesRedrawToMainThread() {
 738   main_task_runner_->PostTask(
 739       FROM_HERE,
 740       base::Bind(&LayerTreeTest::DispatchSetNextCommitForcesRedraw,
 741                  main_thread_weak_ptr_));
 742 }
 743
 744 void LayerTreeTest::PostCompositeImmediatelyToMainThread() {
 745   main_task_runner_->PostTask(
 746       FROM_HERE,
 747       base::Bind(&LayerTreeTest::DispatchCompositeImmediately,
 748                  main_thread_weak_ptr_));
 749 }
 750
 751 void LayerTreeTest::WillBeginTest() {
 752   layer_tree_host_->SetLayerTreeHostClientReady();
 753 }
 754
 755 void LayerTreeTest::DoBeginTest() {
 756   client_ = LayerTreeHostClientForTesting::Create(this);
 757
 758   scoped_ptr<FakeExternalBeginFrameSource> external_begin_frame_source;
 759   if (settings_.use_external_begin_frame_source) {
 760     external_begin_frame_source.reset(new FakeExternalBeginFrameSource(
 761         settings_.renderer_settings.refresh_rate));
 762     external_begin_frame_source_ = external_begin_frame_source.get();
 763   }
 764
 765   DCHECK(!impl_thread_ || impl_thread_->task_runner().get());
 766   layer_tree_host_ = LayerTreeHostForTesting::Create(
 767       this, client_.get(), shared_bitmap_manager_.get(),
 768       gpu_memory_buffer_manager_.get(), task_graph_runner_.get(), settings_,
 769       base::ThreadTaskRunnerHandle::Get(),
 770       impl_thread_ ? impl_thread_->task_runner() : NULL,
 771       external_begin_frame_source.Pass());
 772   ASSERT_TRUE(layer_tree_host_);
 773
 774   started_ = true;
 775   beginning_ = true;
 776   SetupTree();
 777   WillBeginTest();
 778   BeginTest();
 779   beginning_ = false;
 780   if (end_when_begin_returns_)
 781     RealEndTest();
 782
 783   // Allow commits to happen once BeginTest() has had a chance to post tasks
 784   // so that those tasks will happen before the first commit.
 785   if (layer_tree_host_) {
 786     static_cast<LayerTreeHostForTesting*>(layer_tree_host_.get())
 787         ->set_test_started(true);
 788   }
 789 }
 790
 791 void LayerTreeTest::SetupTree() {
 792   if (!layer_tree_host_->root_layer()) {
 793     scoped_refptr<Layer> root_layer = Layer::Create(layer_settings_);
 794     root_layer->SetBounds(gfx::Size(1, 1));
 795     root_layer->SetIsDrawable(true);
 796     layer_tree_host_->SetRootLayer(root_layer);
 797   }
 798
 799   gfx::Size root_bounds = layer_tree_host_->root_layer()->bounds();
 800   gfx::Size device_root_bounds = gfx::ToCeiledSize(
 801       gfx::ScaleSize(root_bounds, layer_tree_host_->device_scale_factor()));
 802   layer_tree_host_->SetViewportSize(device_root_bounds);
 803 }
 804
 805 void LayerTreeTest::Timeout() {
 806   timed_out_ = true;
 807   EndTest();
 808 }
 809
 810 void LayerTreeTest::RealEndTest() {
 811   // TODO(mithro): Make this method only end when not inside an impl frame.
 812   if (layer_tree_host_ && !timed_out_ &&
 813       proxy()->MainFrameWillHappenForTesting()) {
 814     main_task_runner_->PostTask(
 815         FROM_HERE,
 816         base::Bind(&LayerTreeTest::RealEndTest, main_thread_weak_ptr_));
 817     return;
 818   }
 819
 820   base::MessageLoop::current()->Quit();
 821 }
 822
 823 void LayerTreeTest::DispatchAddAnimation(Layer* layer_to_receive_animation,
 824                                          double animation_duration) {
 825   DCHECK(!proxy() || proxy()->IsMainThread());
 826
 827   if (layer_to_receive_animation) {
 828     AddOpacityTransitionToLayer(
 829         layer_to_receive_animation, animation_duration, 0, 0.5, true);
 830   }
 831 }
 832
 833 void LayerTreeTest::DispatchAddAnimationToPlayer(
 834     AnimationPlayer* player_to_receive_animation,
 835     double animation_duration) {
 836   DCHECK(!proxy() || proxy()->IsMainThread());
 837
 838   if (player_to_receive_animation) {
 839     AddOpacityTransitionToPlayer(player_to_receive_animation,
 840                                  animation_duration, 0, 0.5, true);
 841   }
 842 }
 843
 844 void LayerTreeTest::DispatchSetDeferCommits(bool defer_commits) {
 845   DCHECK(!proxy() || proxy()->IsMainThread());
 846
 847   if (layer_tree_host_)
 848     layer_tree_host_->SetDeferCommits(defer_commits);
 849 }
 850
 851 void LayerTreeTest::DispatchSetNeedsCommit() {
 852   DCHECK(!proxy() || proxy()->IsMainThread());
 853
 854   if (layer_tree_host_)
 855     layer_tree_host_->SetNeedsCommit();
 856 }
 857
 858 void LayerTreeTest::DispatchSetNeedsUpdateLayers() {
 859   DCHECK(!proxy() || proxy()->IsMainThread());
 860
 861   if (layer_tree_host_)
 862     layer_tree_host_->SetNeedsUpdateLayers();
 863 }
 864
 865 void LayerTreeTest::DispatchSetNeedsRedraw() {
 866   DCHECK(!proxy() || proxy()->IsMainThread());
 867
 868   if (layer_tree_host_)
 869     layer_tree_host_->SetNeedsRedraw();
 870 }
 871
 872 void LayerTreeTest::DispatchSetNeedsRedrawRect(const gfx::Rect& damage_rect) {
 873   DCHECK(!proxy() || proxy()->IsMainThread());
 874
 875   if (layer_tree_host_)
 876     layer_tree_host_->SetNeedsRedrawRect(damage_rect);
 877 }
 878
 879 void LayerTreeTest::DispatchSetVisible(bool visible) {
 880   DCHECK(!proxy() || proxy()->IsMainThread());
 881   if (layer_tree_host_)
 882     layer_tree_host_->SetVisible(visible);
 883 }
 884
 885 void LayerTreeTest::DispatchSetNextCommitForcesRedraw() {
 886   DCHECK(!proxy() || proxy()->IsMainThread());
 887
 888   if (layer_tree_host_)
 889     layer_tree_host_->SetNextCommitForcesRedraw();
 890 }
 891
 892 void LayerTreeTest::DispatchCompositeImmediately() {
 893   DCHECK(!proxy() || proxy()->IsMainThread());
 894   if (layer_tree_host_)
 895     layer_tree_host_->Composite(base::TimeTicks::Now());
 896 }
 897
 898 void LayerTreeTest::RunTest(bool threaded, bool delegating_renderer) {
 899   if (threaded) {
 900     impl_thread_.reset(new base::Thread("Compositor"));
 901     ASSERT_TRUE(impl_thread_->Start());
 902   }
 903
 904   main_task_runner_ = base::ThreadTaskRunnerHandle::Get();
 905
 906   shared_bitmap_manager_.reset(new TestSharedBitmapManager);
 907   gpu_memory_buffer_manager_.reset(new TestGpuMemoryBufferManager);
 908   task_graph_runner_.reset(new TestTaskGraphRunner);
 909
 910   delegating_renderer_ = delegating_renderer;
 911
 912   // Spend less time waiting for BeginFrame because the output is
 913   // mocked out.
 914   settings_.renderer_settings.refresh_rate = 200.0;
 915   settings_.background_animation_rate = 200.0;
 916   settings_.verify_property_trees = verify_property_trees_;
 917   InitializeSettings(&settings_);
 918   InitializeLayerSettings(&layer_settings_);
 919
 920   main_task_runner_->PostTask(
 921       FROM_HERE,
 922       base::Bind(&LayerTreeTest::DoBeginTest, base::Unretained(this)));
 923
 924   if (timeout_seconds_) {
 925     timeout_.Reset(base::Bind(&LayerTreeTest::Timeout, base::Unretained(this)));
 926     main_task_runner_->PostDelayedTask(
 927         FROM_HERE,
 928         timeout_.callback(),
 929         base::TimeDelta::FromSeconds(timeout_seconds_));
 930   }
 931
 932   base::MessageLoop::current()->Run();
 933   DestroyLayerTreeHost();
 934
 935   timeout_.Cancel();
 936
 937   ASSERT_FALSE(layer_tree_host_.get());
 938   client_ = nullptr;
 939   if (timed_out_) {
 940     FAIL() << "Test timed out";
 941     return;
 942   }
 943   AfterTest();
 944 }
 945
 946 void LayerTreeTest::RequestNewOutputSurface() {
 947   layer_tree_host_->SetOutputSurface(CreateOutputSurface());
 948 }
 949
 950 scoped_ptr<OutputSurface> LayerTreeTest::CreateOutputSurface() {
 951   scoped_ptr<FakeOutputSurface> output_surface = CreateFakeOutputSurface();
 952   DCHECK_EQ(delegating_renderer_,
 953             output_surface->capabilities().delegated_rendering);
 954   output_surface_ = output_surface.get();
 955
 956   if (settings_.use_external_begin_frame_source) {
 957     DCHECK(external_begin_frame_source_);
 958     DCHECK(external_begin_frame_source_->is_ready());
 959   }
 960   return output_surface.Pass();
 961 }
 962
 963 scoped_ptr<FakeOutputSurface> LayerTreeTest::CreateFakeOutputSurface() {
 964   if (delegating_renderer_)
 965     return FakeOutputSurface::CreateDelegating3d();
 966   else
 967     return FakeOutputSurface::Create3d();
 968 }
 969
 970 TestWebGraphicsContext3D* LayerTreeTest::TestContext() {
 971   return static_cast<TestContextProvider*>(output_surface_->context_provider())
 972       ->TestContext3d();
 973 }
 974
 975 int LayerTreeTest::LastCommittedSourceFrameNumber(LayerTreeHostImpl* impl)
 976     const {
 977   if (impl->pending_tree())
 978     return impl->pending_tree()->source_frame_number();
 979   if (impl->active_tree())
 980     return impl->active_tree()->source_frame_number();
 981   // Source frames start at 0, so this is invalid.
 982   return -1;
 983 }
 984
 985 void LayerTreeTest::DestroyLayerTreeHost() {
 986   if (layer_tree_host_ && layer_tree_host_->root_layer())
 987     layer_tree_host_->root_layer()->SetLayerTreeHost(NULL);
 988   layer_tree_host_ = nullptr;
 989 }
 990
 991 LayerTreeHost* LayerTreeTest::layer_tree_host() {
 992   // We check for a null proxy here as we sometimes ask for the layer tree host
 993   // when the proxy does not exist, often for checking settings after a test has
 994   // completed. For example, LTHPixelResourceTest::RunPixelResourceTest. See
 995   // elsewhere in this file for other examples.
 996   DCHECK(!proxy() || proxy()->IsMainThread() || proxy()->IsMainThreadBlocked());
 997   return layer_tree_host_.get();
 998 }
 999
1000 }  // namespace cc