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 "cc/animation/animation.h"
   9 #include "cc/animation/animation_registrar.h"
  10 #include "cc/animation/layer_animation_controller.h"
  11 #include "cc/animation/timing_function.h"
  12 #include "cc/base/switches.h"
  13 #include "cc/input/input_handler.h"
  14 #include "cc/layers/content_layer.h"
  15 #include "cc/layers/layer.h"
  16 #include "cc/layers/layer_impl.h"
  17 #include "cc/test/animation_test_common.h"
  18 #include "cc/test/fake_layer_tree_host_client.h"
  19 #include "cc/test/fake_output_surface.h"
  20 #include "cc/test/test_context_provider.h"
  21 #include "cc/test/test_shared_bitmap_manager.h"
  22 #include "cc/test/tiled_layer_test_common.h"
  23 #include "cc/trees/layer_tree_host_client.h"
  24 #include "cc/trees/layer_tree_host_impl.h"
  25 #include "cc/trees/layer_tree_host_single_thread_client.h"
  26 #include "cc/trees/layer_tree_impl.h"
  27 #include "cc/trees/single_thread_proxy.h"
  28 #include "cc/trees/thread_proxy.h"
  29 #include "testing/gmock/include/gmock/gmock.h"
  30 #include "ui/gfx/frame_time.h"
  31 #include "ui/gfx/size_conversions.h"
  32
  33 namespace cc {
  34
  35 TestHooks::TestHooks() {}
  36
  37 TestHooks::~TestHooks() {}
  38
  39 DrawResult TestHooks::PrepareToDrawOnThread(
  40     LayerTreeHostImpl* host_impl,
  41     LayerTreeHostImpl::FrameData* frame_data,
  42     DrawResult draw_result) {
  43   return draw_result;
  44 }
  45
  46 base::TimeDelta TestHooks::LowFrequencyAnimationInterval() const {
  47   return base::TimeDelta::FromMilliseconds(16);
  48 }
  49
  50 // Adapts ThreadProxy for test. Injects test hooks for testing.
  51 class ThreadProxyForTest : public ThreadProxy {
  52  public:
  53   static scoped_ptr<Proxy> Create(
  54       TestHooks* test_hooks,
  55       LayerTreeHost* host,
  56       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
  57       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner) {
  58     return make_scoped_ptr(
  59                new ThreadProxyForTest(
  60                    test_hooks, host, main_task_runner, impl_task_runner))
  61         .PassAs<Proxy>();
  62   }
  63
  64   virtual ~ThreadProxyForTest() {}
  65
  66   void test() {
  67     test_hooks_->Layout();
  68   }
  69
  70  private:
  71   TestHooks* test_hooks_;
  72
  73   virtual void ScheduledActionSendBeginMainFrame() OVERRIDE {
  74     test_hooks_->ScheduledActionWillSendBeginMainFrame();
  75     ThreadProxy::ScheduledActionSendBeginMainFrame();
  76     test_hooks_->ScheduledActionSendBeginMainFrame();
  77   }
  78
  79   virtual DrawResult ScheduledActionDrawAndSwapIfPossible() OVERRIDE {
  80     DrawResult result = ThreadProxy::ScheduledActionDrawAndSwapIfPossible();
  81     test_hooks_->ScheduledActionDrawAndSwapIfPossible();
  82     return result;
  83   }
  84
  85   virtual void ScheduledActionAnimate() OVERRIDE {
  86     ThreadProxy::ScheduledActionAnimate();
  87     test_hooks_->ScheduledActionAnimate();
  88   }
  89
  90   virtual void ScheduledActionCommit() OVERRIDE {
  91     ThreadProxy::ScheduledActionCommit();
  92     test_hooks_->ScheduledActionCommit();
  93   }
  94
  95   virtual void ScheduledActionBeginOutputSurfaceCreation() OVERRIDE {
  96     ThreadProxy::ScheduledActionBeginOutputSurfaceCreation();
  97     test_hooks_->ScheduledActionBeginOutputSurfaceCreation();
  98   }
  99
 100   ThreadProxyForTest(
 101       TestHooks* test_hooks,
 102       LayerTreeHost* host,
 103       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
 104       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner)
 105       : ThreadProxy(host, main_task_runner, impl_task_runner),
 106         test_hooks_(test_hooks) {}
 107 };
 108
 109 // Adapts LayerTreeHostImpl for test. Runs real code, then invokes test hooks.
 110 class LayerTreeHostImplForTesting : public LayerTreeHostImpl {
 111  public:
 112   static scoped_ptr<LayerTreeHostImplForTesting> Create(
 113       TestHooks* test_hooks,
 114       const LayerTreeSettings& settings,
 115       LayerTreeHostImplClient* host_impl_client,
 116       Proxy* proxy,
 117       SharedBitmapManager* manager,
 118       RenderingStatsInstrumentation* stats_instrumentation) {
 119     return make_scoped_ptr(
 120         new LayerTreeHostImplForTesting(test_hooks,
 121                                         settings,
 122                                         host_impl_client,
 123                                         proxy,
 124                                         manager,
 125                                         stats_instrumentation));
 126   }
 127
 128  protected:
 129   LayerTreeHostImplForTesting(
 130       TestHooks* test_hooks,
 131       const LayerTreeSettings& settings,
 132       LayerTreeHostImplClient* host_impl_client,
 133       Proxy* proxy,
 134       SharedBitmapManager* manager,
 135       RenderingStatsInstrumentation* stats_instrumentation)
 136       : LayerTreeHostImpl(settings,
 137                           host_impl_client,
 138                           proxy,
 139                           stats_instrumentation,
 140                           manager,
 141                           0),
 142         test_hooks_(test_hooks),
 143         block_notify_ready_to_activate_for_testing_(false),
 144         notify_ready_to_activate_was_blocked_(false) {}
 145
 146   virtual void WillBeginImplFrame(const BeginFrameArgs& args) OVERRIDE {
 147     LayerTreeHostImpl::WillBeginImplFrame(args);
 148     test_hooks_->WillBeginImplFrameOnThread(this, args);
 149   }
 150
 151   virtual void BeginMainFrameAborted(bool did_handle) OVERRIDE {
 152     LayerTreeHostImpl::BeginMainFrameAborted(did_handle);
 153     test_hooks_->BeginMainFrameAbortedOnThread(this, did_handle);
 154   }
 155
 156   virtual void BeginCommit() OVERRIDE {
 157     LayerTreeHostImpl::BeginCommit();
 158     test_hooks_->BeginCommitOnThread(this);
 159   }
 160
 161   virtual void CommitComplete() OVERRIDE {
 162     LayerTreeHostImpl::CommitComplete();
 163     test_hooks_->CommitCompleteOnThread(this);
 164   }
 165
 166   virtual DrawResult PrepareToDraw(FrameData* frame) OVERRIDE {
 167     DrawResult draw_result = LayerTreeHostImpl::PrepareToDraw(frame);
 168     return test_hooks_->PrepareToDrawOnThread(this, frame, draw_result);
 169   }
 170
 171   virtual void DrawLayers(FrameData* frame,
 172                           base::TimeTicks frame_begin_time) OVERRIDE {
 173     LayerTreeHostImpl::DrawLayers(frame, frame_begin_time);
 174     test_hooks_->DrawLayersOnThread(this);
 175   }
 176
 177   virtual bool SwapBuffers(const LayerTreeHostImpl::FrameData& frame) OVERRIDE {
 178     bool result = LayerTreeHostImpl::SwapBuffers(frame);
 179     test_hooks_->SwapBuffersOnThread(this, result);
 180     return result;
 181   }
 182
 183   virtual void DidSwapBuffersComplete() OVERRIDE {
 184     LayerTreeHostImpl::DidSwapBuffersComplete();
 185     test_hooks_->SwapBuffersCompleteOnThread(this);
 186   }
 187
 188   virtual void ReclaimResources(const CompositorFrameAck* ack) OVERRIDE {
 189     LayerTreeHostImpl::ReclaimResources(ack);
 190   }
 191
 192   virtual void UpdateVisibleTiles() OVERRIDE {
 193     LayerTreeHostImpl::UpdateVisibleTiles();
 194     test_hooks_->UpdateVisibleTilesOnThread(this);
 195   }
 196
 197   virtual void NotifyReadyToActivate() OVERRIDE {
 198     if (block_notify_ready_to_activate_for_testing_)
 199       notify_ready_to_activate_was_blocked_ = true;
 200     else
 201       client_->NotifyReadyToActivate();
 202   }
 203
 204   virtual void BlockNotifyReadyToActivateForTesting(bool block) OVERRIDE {
 205     block_notify_ready_to_activate_for_testing_ = block;
 206     if (!block && notify_ready_to_activate_was_blocked_) {
 207       NotifyReadyToActivate();
 208       notify_ready_to_activate_was_blocked_ = false;
 209     }
 210   }
 211
 212   virtual void ActivateSyncTree() OVERRIDE {
 213     test_hooks_->WillActivateTreeOnThread(this);
 214     LayerTreeHostImpl::ActivateSyncTree();
 215     DCHECK(!pending_tree());
 216     test_hooks_->DidActivateTreeOnThread(this);
 217   }
 218
 219   virtual bool InitializeRenderer(scoped_ptr<OutputSurface> output_surface)
 220       OVERRIDE {
 221     bool success = LayerTreeHostImpl::InitializeRenderer(output_surface.Pass());
 222     test_hooks_->InitializedRendererOnThread(this, success);
 223     return success;
 224   }
 225
 226   virtual void SetVisible(bool visible) OVERRIDE {
 227     LayerTreeHostImpl::SetVisible(visible);
 228     test_hooks_->DidSetVisibleOnImplTree(this, visible);
 229   }
 230
 231   virtual void AnimateLayers(base::TimeTicks monotonic_time) OVERRIDE {
 232     test_hooks_->WillAnimateLayers(this, monotonic_time);
 233     LayerTreeHostImpl::AnimateLayers(monotonic_time);
 234     test_hooks_->AnimateLayers(this, monotonic_time);
 235   }
 236
 237   virtual void UpdateAnimationState(bool start_ready_animations) OVERRIDE {
 238     LayerTreeHostImpl::UpdateAnimationState(start_ready_animations);
 239     bool has_unfinished_animation = false;
 240     AnimationRegistrar::AnimationControllerMap::const_iterator iter =
 241         active_animation_controllers().begin();
 242     for (; iter != active_animation_controllers().end(); ++iter) {
 243       if (iter->second->HasActiveAnimation()) {
 244         has_unfinished_animation = true;
 245         break;
 246       }
 247     }
 248     test_hooks_->UpdateAnimationState(this, has_unfinished_animation);
 249   }
 250
 251   virtual base::TimeDelta LowFrequencyAnimationInterval() const OVERRIDE {
 252     return test_hooks_->LowFrequencyAnimationInterval();
 253   }
 254
 255  private:
 256   TestHooks* test_hooks_;
 257   bool block_notify_ready_to_activate_for_testing_;
 258   bool notify_ready_to_activate_was_blocked_;
 259 };
 260
 261 // Implementation of LayerTreeHost callback interface.
 262 class LayerTreeHostClientForTesting : public LayerTreeHostClient,
 263                                       public LayerTreeHostSingleThreadClient {
 264  public:
 265   static scoped_ptr<LayerTreeHostClientForTesting> Create(
 266       TestHooks* test_hooks) {
 267     return make_scoped_ptr(new LayerTreeHostClientForTesting(test_hooks));
 268   }
 269   virtual ~LayerTreeHostClientForTesting() {}
 270
 271   virtual void WillBeginMainFrame(int frame_id) OVERRIDE {
 272     test_hooks_->WillBeginMainFrame();
 273   }
 274
 275   virtual void DidBeginMainFrame() OVERRIDE {
 276     test_hooks_->DidBeginMainFrame();
 277   }
 278
 279   virtual void BeginMainFrame(const BeginFrameArgs& args) OVERRIDE {
 280     test_hooks_->BeginMainFrame(args);
 281   }
 282
 283   virtual void Layout() OVERRIDE { test_hooks_->Layout(); }
 284
 285   virtual void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
 286                                    float scale,
 287                                    float top_controls_delta) OVERRIDE {
 288     test_hooks_->ApplyViewportDeltas(scroll_delta,
 289                                      scale,
 290                                      top_controls_delta);
 291   }
 292
 293   virtual scoped_ptr<OutputSurface> CreateOutputSurface(bool fallback)
 294       OVERRIDE {
 295     return test_hooks_->CreateOutputSurface(fallback);
 296   }
 297
 298   virtual void DidInitializeOutputSurface() OVERRIDE {
 299     test_hooks_->DidInitializeOutputSurface();
 300   }
 301
 302   virtual void DidFailToInitializeOutputSurface() OVERRIDE {
 303     test_hooks_->DidFailToInitializeOutputSurface();
 304   }
 305
 306   virtual void WillCommit() OVERRIDE { test_hooks_->WillCommit(); }
 307
 308   virtual void DidCommit() OVERRIDE { test_hooks_->DidCommit(); }
 309
 310   virtual void DidCommitAndDrawFrame() OVERRIDE {
 311     test_hooks_->DidCommitAndDrawFrame();
 312   }
 313
 314   virtual void DidCompleteSwapBuffers() OVERRIDE {
 315     test_hooks_->DidCompleteSwapBuffers();
 316   }
 317
 318   virtual void DidPostSwapBuffers() OVERRIDE {}
 319   virtual void DidAbortSwapBuffers() OVERRIDE {}
 320
 321  private:
 322   explicit LayerTreeHostClientForTesting(TestHooks* test_hooks)
 323       : test_hooks_(test_hooks) {}
 324
 325   TestHooks* test_hooks_;
 326 };
 327
 328 // Adapts LayerTreeHost for test. Injects LayerTreeHostImplForTesting.
 329 class LayerTreeHostForTesting : public LayerTreeHost {
 330  public:
 331   static scoped_ptr<LayerTreeHostForTesting> Create(
 332       TestHooks* test_hooks,
 333       LayerTreeHostClientForTesting* client,
 334       const LayerTreeSettings& settings,
 335       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
 336       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner) {
 337     scoped_ptr<LayerTreeHostForTesting> layer_tree_host(
 338         new LayerTreeHostForTesting(test_hooks, client, settings));
 339     if (impl_task_runner.get()) {
 340       layer_tree_host->InitializeForTesting(
 341           ThreadProxyForTest::Create(test_hooks,
 342                                      layer_tree_host.get(),
 343                                      main_task_runner,
 344                                      impl_task_runner));
 345     } else {
 346       layer_tree_host->InitializeForTesting(SingleThreadProxy::Create(
 347           layer_tree_host.get(), client, main_task_runner));
 348     }
 349     return layer_tree_host.Pass();
 350   }
 351
 352   virtual scoped_ptr<LayerTreeHostImpl> CreateLayerTreeHostImpl(
 353       LayerTreeHostImplClient* host_impl_client) OVERRIDE {
 354     return LayerTreeHostImplForTesting::Create(
 355                test_hooks_,
 356                settings(),
 357                host_impl_client,
 358                proxy(),
 359                shared_bitmap_manager_.get(),
 360                rendering_stats_instrumentation()).PassAs<LayerTreeHostImpl>();
 361   }
 362
 363   virtual void SetNeedsCommit() OVERRIDE {
 364     if (!test_started_)
 365       return;
 366     LayerTreeHost::SetNeedsCommit();
 367   }
 368
 369   void set_test_started(bool started) { test_started_ = started; }
 370
 371   virtual void DidDeferCommit() OVERRIDE { test_hooks_->DidDeferCommit(); }
 372
 373  private:
 374   LayerTreeHostForTesting(TestHooks* test_hooks,
 375                           LayerTreeHostClient* client,
 376                           const LayerTreeSettings& settings)
 377       : LayerTreeHost(client, NULL, settings),
 378         shared_bitmap_manager_(new TestSharedBitmapManager()),
 379         test_hooks_(test_hooks),
 380         test_started_(false) {}
 381
 382   scoped_ptr<SharedBitmapManager> shared_bitmap_manager_;
 383   TestHooks* test_hooks_;
 384   bool test_started_;
 385 };
 386
 387 LayerTreeTest::LayerTreeTest()
 388     : beginning_(false),
 389       end_when_begin_returns_(false),
 390       timed_out_(false),
 391       scheduled_(false),
 392       started_(false),
 393       ended_(false),
 394       delegating_renderer_(false),
 395       timeout_seconds_(0),
 396       weak_factory_(this) {
 397   main_thread_weak_ptr_ = weak_factory_.GetWeakPtr();
 398
 399   // Tests should timeout quickly unless --cc-layer-tree-test-no-timeout was
 400   // specified (for running in a debugger).
 401   CommandLine* command_line = CommandLine::ForCurrentProcess();
 402   if (!command_line->HasSwitch(switches::kCCLayerTreeTestNoTimeout))
 403     timeout_seconds_ = 5;
 404 }
 405
 406 LayerTreeTest::~LayerTreeTest() {}
 407
 408 void LayerTreeTest::EndTest() {
 409   if (ended_)
 410     return;
 411   ended_ = true;
 412
 413   // For the case where we EndTest during BeginTest(), set a flag to indicate
 414   // that the test should end the second BeginTest regains control.
 415   if (beginning_) {
 416     end_when_begin_returns_ = true;
 417   } else {
 418     main_task_runner_->PostTask(
 419         FROM_HERE,
 420         base::Bind(&LayerTreeTest::RealEndTest, main_thread_weak_ptr_));
 421   }
 422 }
 423
 424 void LayerTreeTest::EndTestAfterDelay(int delay_milliseconds) {
 425   main_task_runner_->PostDelayedTask(
 426       FROM_HERE,
 427       base::Bind(&LayerTreeTest::EndTest, main_thread_weak_ptr_),
 428       base::TimeDelta::FromMilliseconds(delay_milliseconds));
 429 }
 430
 431 void LayerTreeTest::PostAddAnimationToMainThread(
 432     Layer* layer_to_receive_animation) {
 433   main_task_runner_->PostTask(
 434       FROM_HERE,
 435       base::Bind(&LayerTreeTest::DispatchAddAnimation,
 436                  main_thread_weak_ptr_,
 437                  base::Unretained(layer_to_receive_animation),
 438                  0.000001));
 439 }
 440
 441 void LayerTreeTest::PostAddInstantAnimationToMainThread(
 442     Layer* layer_to_receive_animation) {
 443   main_task_runner_->PostTask(
 444       FROM_HERE,
 445       base::Bind(&LayerTreeTest::DispatchAddAnimation,
 446                  main_thread_weak_ptr_,
 447                  base::Unretained(layer_to_receive_animation),
 448                  0.0));
 449 }
 450
 451 void LayerTreeTest::PostAddLongAnimationToMainThread(
 452     Layer* layer_to_receive_animation) {
 453   main_task_runner_->PostTask(
 454       FROM_HERE,
 455       base::Bind(&LayerTreeTest::DispatchAddAnimation,
 456                  main_thread_weak_ptr_,
 457                  base::Unretained(layer_to_receive_animation),
 458                  1.0));
 459 }
 460
 461 void LayerTreeTest::PostSetNeedsCommitToMainThread() {
 462   main_task_runner_->PostTask(FROM_HERE,
 463                               base::Bind(&LayerTreeTest::DispatchSetNeedsCommit,
 464                                          main_thread_weak_ptr_));
 465 }
 466
 467 void LayerTreeTest::PostSetNeedsUpdateLayersToMainThread() {
 468   main_task_runner_->PostTask(
 469       FROM_HERE,
 470       base::Bind(&LayerTreeTest::DispatchSetNeedsUpdateLayers,
 471                  main_thread_weak_ptr_));
 472 }
 473
 474 void LayerTreeTest::PostSetNeedsRedrawToMainThread() {
 475   main_task_runner_->PostTask(FROM_HERE,
 476                               base::Bind(&LayerTreeTest::DispatchSetNeedsRedraw,
 477                                          main_thread_weak_ptr_));
 478 }
 479
 480 void LayerTreeTest::PostSetNeedsRedrawRectToMainThread(
 481     const gfx::Rect& damage_rect) {
 482   main_task_runner_->PostTask(
 483       FROM_HERE,
 484       base::Bind(&LayerTreeTest::DispatchSetNeedsRedrawRect,
 485                  main_thread_weak_ptr_,
 486                  damage_rect));
 487 }
 488
 489 void LayerTreeTest::PostSetVisibleToMainThread(bool visible) {
 490   main_task_runner_->PostTask(
 491       FROM_HERE,
 492       base::Bind(
 493           &LayerTreeTest::DispatchSetVisible, main_thread_weak_ptr_, visible));
 494 }
 495
 496 void LayerTreeTest::PostSetNextCommitForcesRedrawToMainThread() {
 497   main_task_runner_->PostTask(
 498       FROM_HERE,
 499       base::Bind(&LayerTreeTest::DispatchSetNextCommitForcesRedraw,
 500                  main_thread_weak_ptr_));
 501 }
 502
 503 void LayerTreeTest::WillBeginTest() {
 504   layer_tree_host_->SetLayerTreeHostClientReady();
 505 }
 506
 507 void LayerTreeTest::DoBeginTest() {
 508   client_ = LayerTreeHostClientForTesting::Create(this);
 509
 510   DCHECK(!impl_thread_ || impl_thread_->message_loop_proxy().get());
 511   layer_tree_host_ = LayerTreeHostForTesting::Create(
 512       this,
 513       client_.get(),
 514       settings_,
 515       base::MessageLoopProxy::current(),
 516       impl_thread_ ? impl_thread_->message_loop_proxy() : NULL);
 517   ASSERT_TRUE(layer_tree_host_);
 518
 519   started_ = true;
 520   beginning_ = true;
 521   SetupTree();
 522   WillBeginTest();
 523   BeginTest();
 524   beginning_ = false;
 525   if (end_when_begin_returns_)
 526     RealEndTest();
 527
 528   // Allow commits to happen once BeginTest() has had a chance to post tasks
 529   // so that those tasks will happen before the first commit.
 530   if (layer_tree_host_) {
 531     static_cast<LayerTreeHostForTesting*>(layer_tree_host_.get())
 532         ->set_test_started(true);
 533   }
 534 }
 535
 536 void LayerTreeTest::SetupTree() {
 537   if (!layer_tree_host_->root_layer()) {
 538     scoped_refptr<Layer> root_layer = Layer::Create();
 539     root_layer->SetBounds(gfx::Size(1, 1));
 540     root_layer->SetIsDrawable(true);
 541     layer_tree_host_->SetRootLayer(root_layer);
 542   }
 543
 544   gfx::Size root_bounds = layer_tree_host_->root_layer()->bounds();
 545   gfx::Size device_root_bounds = gfx::ToCeiledSize(
 546       gfx::ScaleSize(root_bounds, layer_tree_host_->device_scale_factor()));
 547   layer_tree_host_->SetViewportSize(device_root_bounds);
 548 }
 549
 550 void LayerTreeTest::Timeout() {
 551   timed_out_ = true;
 552   EndTest();
 553 }
 554
 555 void LayerTreeTest::RealEndTest() {
 556   if (layer_tree_host_ && !timed_out_ &&
 557       proxy()->MainFrameWillHappenForTesting()) {
 558     main_task_runner_->PostTask(
 559         FROM_HERE,
 560         base::Bind(&LayerTreeTest::RealEndTest, main_thread_weak_ptr_));
 561     return;
 562   }
 563
 564   base::MessageLoop::current()->Quit();
 565 }
 566
 567 void LayerTreeTest::DispatchAddAnimation(Layer* layer_to_receive_animation,
 568                                          double animation_duration) {
 569   DCHECK(!proxy() || proxy()->IsMainThread());
 570
 571   if (layer_to_receive_animation) {
 572     AddOpacityTransitionToLayer(
 573         layer_to_receive_animation, animation_duration, 0, 0.5, true);
 574   }
 575 }
 576
 577 void LayerTreeTest::DispatchSetNeedsCommit() {
 578   DCHECK(!proxy() || proxy()->IsMainThread());
 579
 580   if (layer_tree_host_)
 581     layer_tree_host_->SetNeedsCommit();
 582 }
 583
 584 void LayerTreeTest::DispatchSetNeedsUpdateLayers() {
 585   DCHECK(!proxy() || proxy()->IsMainThread());
 586
 587   if (layer_tree_host_)
 588     layer_tree_host_->SetNeedsUpdateLayers();
 589 }
 590
 591 void LayerTreeTest::DispatchSetNeedsRedraw() {
 592   DCHECK(!proxy() || proxy()->IsMainThread());
 593
 594   if (layer_tree_host_)
 595     layer_tree_host_->SetNeedsRedraw();
 596 }
 597
 598 void LayerTreeTest::DispatchSetNeedsRedrawRect(const gfx::Rect& damage_rect) {
 599   DCHECK(!proxy() || proxy()->IsMainThread());
 600
 601   if (layer_tree_host_)
 602     layer_tree_host_->SetNeedsRedrawRect(damage_rect);
 603 }
 604
 605 void LayerTreeTest::DispatchSetVisible(bool visible) {
 606   DCHECK(!proxy() || proxy()->IsMainThread());
 607   if (layer_tree_host_)
 608     layer_tree_host_->SetVisible(visible);
 609 }
 610
 611 void LayerTreeTest::DispatchSetNextCommitForcesRedraw() {
 612   DCHECK(!proxy() || proxy()->IsMainThread());
 613
 614   if (layer_tree_host_)
 615     layer_tree_host_->SetNextCommitForcesRedraw();
 616 }
 617
 618 void LayerTreeTest::RunTest(bool threaded,
 619                             bool delegating_renderer,
 620                             bool impl_side_painting) {
 621   if (threaded) {
 622     impl_thread_.reset(new base::Thread("Compositor"));
 623     ASSERT_TRUE(impl_thread_->Start());
 624   }
 625
 626   main_task_runner_ = base::MessageLoopProxy::current();
 627
 628   delegating_renderer_ = delegating_renderer;
 629
 630   // Spend less time waiting for BeginFrame because the output is
 631   // mocked out.
 632   settings_.refresh_rate = 200.0;
 633   if (impl_side_painting) {
 634     DCHECK(threaded)
 635         << "Don't run single thread + impl side painting, it doesn't exist.";
 636     settings_.impl_side_painting = true;
 637   }
 638   InitializeSettings(&settings_);
 639
 640   main_task_runner_->PostTask(
 641       FROM_HERE,
 642       base::Bind(&LayerTreeTest::DoBeginTest, base::Unretained(this)));
 643
 644   if (timeout_seconds_) {
 645     timeout_.Reset(base::Bind(&LayerTreeTest::Timeout, base::Unretained(this)));
 646     main_task_runner_->PostDelayedTask(
 647         FROM_HERE,
 648         timeout_.callback(),
 649         base::TimeDelta::FromSeconds(timeout_seconds_));
 650   }
 651
 652   base::MessageLoop::current()->Run();
 653   DestroyLayerTreeHost();
 654
 655   timeout_.Cancel();
 656
 657   ASSERT_FALSE(layer_tree_host_.get());
 658   client_.reset();
 659   if (timed_out_) {
 660     FAIL() << "Test timed out";
 661     return;
 662   }
 663   AfterTest();
 664 }
 665
 666 void LayerTreeTest::RunTestWithImplSidePainting() {
 667   RunTest(true, false, true);
 668 }
 669
 670 scoped_ptr<OutputSurface> LayerTreeTest::CreateOutputSurface(bool fallback) {
 671   scoped_ptr<FakeOutputSurface> output_surface =
 672       CreateFakeOutputSurface(fallback);
 673   if (output_surface) {
 674     DCHECK_EQ(delegating_renderer_,
 675               output_surface->capabilities().delegated_rendering);
 676   }
 677   output_surface_ = output_surface.get();
 678   return output_surface.PassAs<OutputSurface>();
 679 }
 680
 681 scoped_ptr<FakeOutputSurface> LayerTreeTest::CreateFakeOutputSurface(
 682     bool fallback) {
 683   if (delegating_renderer_)
 684     return FakeOutputSurface::CreateDelegating3d();
 685   else
 686     return FakeOutputSurface::Create3d();
 687 }
 688
 689 TestWebGraphicsContext3D* LayerTreeTest::TestContext() {
 690   return static_cast<TestContextProvider*>(output_surface_->context_provider())
 691       ->TestContext3d();
 692 }
 693
 694 int LayerTreeTest::LastCommittedSourceFrameNumber(LayerTreeHostImpl* impl)
 695     const {
 696   if (impl->pending_tree())
 697     return impl->pending_tree()->source_frame_number();
 698   if (impl->active_tree())
 699     return impl->active_tree()->source_frame_number();
 700   // Source frames start at 0, so this is invalid.
 701   return -1;
 702 }
 703
 704 void LayerTreeTest::DestroyLayerTreeHost() {
 705   if (layer_tree_host_ && layer_tree_host_->root_layer())
 706     layer_tree_host_->root_layer()->SetLayerTreeHost(NULL);
 707   layer_tree_host_.reset();
 708 }
 709
 710 }  // namespace cc