src/cc/trees/layer_tree_host_unittest_delegated.cc

   1 // Copyright 2013 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/layer_tree_host.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/bind.h"
  10 #include "base/location.h"
  11 #include "base/synchronization/waitable_event.h"
  12 #include "base/threading/thread.h"
  13 #include "base/time/time.h"
  14 #include "cc/layers/delegated_frame_provider.h"
  15 #include "cc/layers/delegated_frame_resource_collection.h"
  16 #include "cc/layers/delegated_renderer_layer.h"
  17 #include "cc/layers/delegated_renderer_layer_impl.h"
  18 #include "cc/output/compositor_frame.h"
  19 #include "cc/output/compositor_frame_ack.h"
  20 #include "cc/output/delegated_frame_data.h"
  21 #include "cc/quads/render_pass_draw_quad.h"
  22 #include "cc/quads/shared_quad_state.h"
  23 #include "cc/quads/texture_draw_quad.h"
  24 #include "cc/resources/returned_resource.h"
  25 #include "cc/test/fake_delegated_renderer_layer.h"
  26 #include "cc/test/fake_delegated_renderer_layer_impl.h"
  27 #include "cc/test/fake_output_surface.h"
  28 #include "cc/test/layer_tree_test.h"
  29 #include "cc/trees/layer_tree_impl.h"
  30 #include "gpu/GLES2/gl2extchromium.h"
  31
  32 namespace cc {
  33 namespace {
  34
  35 bool ReturnedResourceLower(const ReturnedResource& a,
  36                            const ReturnedResource& b) {
  37   return a.id < b.id;
  38 }
  39
  40 // Tests if the list of resources matches an expectation, modulo the order.
  41 bool ResourcesMatch(ReturnedResourceArray actual,
  42                     unsigned* expected,
  43                     size_t expected_count) {
  44   std::sort(actual.begin(), actual.end(), ReturnedResourceLower);
  45   std::sort(expected, expected + expected_count);
  46   size_t actual_index = 0;
  47
  48   // for each element of the expected array, count off one of the actual array
  49   // (after checking it matches).
  50   for (size_t expected_index = 0; expected_index < expected_count;
  51        ++expected_index) {
  52     EXPECT_LT(actual_index, actual.size());
  53     if (actual_index >= actual.size())
  54       return false;
  55     EXPECT_EQ(actual[actual_index].id, expected[expected_index]);
  56     if (actual[actual_index].id != expected[expected_index])
  57       return false;
  58     EXPECT_GT(actual[actual_index].count, 0);
  59     if (actual[actual_index].count <= 0) {
  60       return false;
  61     } else {
  62       --actual[actual_index].count;
  63       if (actual[actual_index].count == 0)
  64         ++actual_index;
  65     }
  66   }
  67   EXPECT_EQ(actual_index, actual.size());
  68   return actual_index == actual.size();
  69 }
  70
  71 #define EXPECT_RESOURCES(expected, actual) \
  72     EXPECT_TRUE(ResourcesMatch(actual, expected, arraysize(expected)));
  73
  74 // These tests deal with delegated renderer layers.
  75 class LayerTreeHostDelegatedTest : public LayerTreeTest {
  76  protected:
  77   scoped_ptr<DelegatedFrameData> CreateFrameData(
  78       const gfx::Rect& root_output_rect,
  79       const gfx::Rect& root_damage_rect) {
  80     scoped_ptr<DelegatedFrameData> frame(new DelegatedFrameData);
  81
  82     scoped_ptr<RenderPass> root_pass(RenderPass::Create());
  83     root_pass->SetNew(RenderPass::Id(1, 1),
  84                       root_output_rect,
  85                       root_damage_rect,
  86                       gfx::Transform());
  87     frame->render_pass_list.push_back(root_pass.Pass());
  88     return frame.Pass();
  89   }
  90
  91   scoped_ptr<DelegatedFrameData> CreateInvalidFrameData(
  92       const gfx::Rect& root_output_rect,
  93       const gfx::Rect& root_damage_rect) {
  94     scoped_ptr<DelegatedFrameData> frame(new DelegatedFrameData);
  95
  96     scoped_ptr<RenderPass> root_pass(RenderPass::Create());
  97     root_pass->SetNew(RenderPass::Id(1, 1),
  98                       root_output_rect,
  99                       root_damage_rect,
 100                       gfx::Transform());
 101
 102     SharedQuadState* shared_quad_state =
 103         root_pass->CreateAndAppendSharedQuadState();
 104
 105     gfx::Rect rect = root_output_rect;
 106     gfx::Rect opaque_rect = root_output_rect;
 107     gfx::Rect visible_rect = root_output_rect;
 108     // An invalid resource id! The resource isn't part of the frame.
 109     unsigned resource_id = 5;
 110     bool premultiplied_alpha = false;
 111     gfx::PointF uv_top_left = gfx::PointF(0.f, 0.f);
 112     gfx::PointF uv_bottom_right = gfx::PointF(1.f, 1.f);
 113     SkColor background_color = 0;
 114     float vertex_opacity[4] = {1.f, 1.f, 1.f, 1.f};
 115     bool flipped = false;
 116
 117     TextureDrawQuad* invalid_draw_quad =
 118         root_pass->CreateAndAppendDrawQuad<TextureDrawQuad>();
 119     invalid_draw_quad->SetNew(shared_quad_state,
 120                               rect,
 121                               opaque_rect,
 122                               visible_rect,
 123                               resource_id,
 124                               premultiplied_alpha,
 125                               uv_top_left,
 126                               uv_bottom_right,
 127                               background_color,
 128                               vertex_opacity,
 129                               flipped);
 130
 131     frame->render_pass_list.push_back(root_pass.Pass());
 132     return frame.Pass();
 133   }
 134
 135   void AddTransferableResource(DelegatedFrameData* frame,
 136                                ResourceProvider::ResourceId resource_id) {
 137     TransferableResource resource;
 138     resource.id = resource_id;
 139     resource.mailbox_holder.texture_target = GL_TEXTURE_2D;
 140     GLbyte arbitrary_mailbox[GL_MAILBOX_SIZE_CHROMIUM] = {
 141         1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2,
 142         3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4,
 143         5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4};
 144     resource.mailbox_holder.mailbox.SetName(arbitrary_mailbox);
 145     frame->resource_list.push_back(resource);
 146   }
 147
 148   void AddTextureQuad(DelegatedFrameData* frame,
 149                       ResourceProvider::ResourceId resource_id) {
 150     RenderPass* render_pass = frame->render_pass_list[0];
 151     SharedQuadState* sqs = render_pass->CreateAndAppendSharedQuadState();
 152     TextureDrawQuad* quad =
 153         render_pass->CreateAndAppendDrawQuad<TextureDrawQuad>();
 154     float vertex_opacity[4] = { 1.f, 1.f, 1.f, 1.f };
 155     quad->SetNew(sqs,
 156                  gfx::Rect(0, 0, 10, 10),
 157                  gfx::Rect(0, 0, 10, 10),
 158                  gfx::Rect(0, 0, 10, 10),
 159                  resource_id,
 160                  false,
 161                  gfx::PointF(0.f, 0.f),
 162                  gfx::PointF(1.f, 1.f),
 163                  SK_ColorTRANSPARENT,
 164                  vertex_opacity,
 165                  false);
 166   }
 167
 168   void AddRenderPass(DelegatedFrameData* frame,
 169                      RenderPass::Id id,
 170                      const gfx::Rect& output_rect,
 171                      const gfx::Rect& damage_rect,
 172                      const FilterOperations& filters,
 173                      const FilterOperations& background_filters) {
 174     for (size_t i = 0; i < frame->render_pass_list.size(); ++i)
 175       DCHECK(id != frame->render_pass_list[i]->id);
 176
 177     scoped_ptr<RenderPass> pass(RenderPass::Create());
 178     pass->SetNew(id,
 179                  output_rect,
 180                  damage_rect,
 181                  gfx::Transform());
 182     frame->render_pass_list.push_back(pass.Pass());
 183
 184     RenderPass* render_pass = frame->render_pass_list[0];
 185     SharedQuadState* sqs = render_pass->CreateAndAppendSharedQuadState();
 186     RenderPassDrawQuad* quad =
 187         render_pass->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
 188
 189     quad->SetNew(sqs,
 190                  output_rect,
 191                  output_rect,
 192                  id,
 193                  0,      // mask_resource_id
 194                  gfx::Rect(0, 0, 1, 1),  // mask_uv_rect
 195                  filters,
 196                  gfx::Vector2dF(),
 197                  background_filters);
 198   }
 199
 200   static ResourceProvider::ResourceId AppendResourceId(
 201       std::vector<ResourceProvider::ResourceId>* resources_in_last_sent_frame,
 202       ResourceProvider::ResourceId resource_id) {
 203     resources_in_last_sent_frame->push_back(resource_id);
 204     return resource_id;
 205   }
 206
 207   void ReturnUnusedResourcesFromParent(LayerTreeHostImpl* host_impl) {
 208     DelegatedFrameData* delegated_frame_data =
 209         output_surface()->last_sent_frame().delegated_frame_data.get();
 210     if (!delegated_frame_data)
 211       return;
 212
 213     std::vector<ResourceProvider::ResourceId> resources_in_last_sent_frame;
 214     for (size_t i = 0; i < delegated_frame_data->resource_list.size(); ++i) {
 215       resources_in_last_sent_frame.push_back(
 216           delegated_frame_data->resource_list[i].id);
 217     }
 218
 219     std::vector<ResourceProvider::ResourceId> resources_to_return;
 220
 221     const TransferableResourceArray& resources_held_by_parent =
 222         output_surface()->resources_held_by_parent();
 223     for (size_t i = 0; i < resources_held_by_parent.size(); ++i) {
 224       ResourceProvider::ResourceId resource_in_parent =
 225           resources_held_by_parent[i].id;
 226       bool resource_in_parent_is_not_part_of_frame =
 227           std::find(resources_in_last_sent_frame.begin(),
 228                     resources_in_last_sent_frame.end(),
 229                     resource_in_parent) == resources_in_last_sent_frame.end();
 230       if (resource_in_parent_is_not_part_of_frame)
 231         resources_to_return.push_back(resource_in_parent);
 232     }
 233
 234     if (resources_to_return.empty())
 235       return;
 236
 237     CompositorFrameAck ack;
 238     for (size_t i = 0; i < resources_to_return.size(); ++i)
 239       output_surface()->ReturnResource(resources_to_return[i], &ack);
 240     host_impl->ReclaimResources(&ack);
 241   }
 242 };
 243
 244 class LayerTreeHostDelegatedTestCaseSingleDelegatedLayer
 245     : public LayerTreeHostDelegatedTest,
 246       public DelegatedFrameResourceCollectionClient {
 247  public:
 248   LayerTreeHostDelegatedTestCaseSingleDelegatedLayer()
 249       : resource_collection_(new DelegatedFrameResourceCollection),
 250         available_(false) {
 251     resource_collection_->SetClient(this);
 252   }
 253
 254   virtual void SetupTree() OVERRIDE {
 255     root_ = Layer::Create();
 256     root_->SetBounds(gfx::Size(15, 15));
 257
 258     layer_tree_host()->SetRootLayer(root_);
 259     LayerTreeHostDelegatedTest::SetupTree();
 260   }
 261
 262   virtual void BeginTest() OVERRIDE {
 263     resource_collection_->SetClient(this);
 264     PostSetNeedsCommitToMainThread();
 265   }
 266
 267   void SetFrameData(scoped_ptr<DelegatedFrameData> frame_data) {
 268     RenderPass* root_pass = frame_data->render_pass_list.back();
 269     gfx::Size frame_size = root_pass->output_rect.size();
 270
 271     if (frame_provider_.get() && frame_size == frame_provider_->frame_size()) {
 272       frame_provider_->SetFrameData(frame_data.Pass());
 273       return;
 274     }
 275
 276     if (delegated_.get()) {
 277       delegated_->RemoveFromParent();
 278       delegated_ = NULL;
 279       frame_provider_ = NULL;
 280     }
 281
 282     frame_provider_ = new DelegatedFrameProvider(resource_collection_.get(),
 283                                                  frame_data.Pass());
 284
 285     delegated_ = CreateDelegatedLayer(frame_provider_.get());
 286   }
 287
 288   scoped_refptr<DelegatedRendererLayer> CreateDelegatedLayer(
 289       DelegatedFrameProvider* frame_provider) {
 290     scoped_refptr<DelegatedRendererLayer> delegated =
 291         FakeDelegatedRendererLayer::Create(frame_provider);
 292     delegated->SetBounds(gfx::Size(10, 10));
 293     delegated->SetIsDrawable(true);
 294
 295     root_->AddChild(delegated);
 296     return delegated;
 297   }
 298
 299   virtual void AfterTest() OVERRIDE { resource_collection_->SetClient(NULL); }
 300
 301   // DelegatedFrameProviderClient implementation.
 302   virtual void UnusedResourcesAreAvailable() OVERRIDE { available_ = true; }
 303
 304   bool TestAndResetAvailable() {
 305     bool available = available_;
 306     available_ = false;
 307     return available;
 308   }
 309
 310  protected:
 311   scoped_refptr<DelegatedFrameResourceCollection> resource_collection_;
 312   scoped_refptr<DelegatedFrameProvider> frame_provider_;
 313   scoped_refptr<Layer> root_;
 314   scoped_refptr<DelegatedRendererLayer> delegated_;
 315   bool available_;
 316 };
 317
 318 class LayerTreeHostDelegatedTestCreateChildId
 319     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
 320  public:
 321   LayerTreeHostDelegatedTestCreateChildId()
 322       : LayerTreeHostDelegatedTestCaseSingleDelegatedLayer(),
 323         num_activates_(0),
 324         did_reset_child_id_(false) {}
 325
 326   virtual void DidCommit() OVERRIDE {
 327     if (TestEnded())
 328       return;
 329     SetFrameData(CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1)));
 330   }
 331
 332   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 333     if (host_impl->active_tree()->source_frame_number() < 1)
 334       return;
 335
 336     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
 337     FakeDelegatedRendererLayerImpl* delegated_impl =
 338         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
 339
 340     TestContextProvider* context_provider = static_cast<TestContextProvider*>(
 341         host_impl->output_surface()->context_provider().get());
 342
 343     ++num_activates_;
 344     switch (num_activates_) {
 345       case 2:
 346         EXPECT_TRUE(delegated_impl->ChildId());
 347         EXPECT_FALSE(did_reset_child_id_);
 348
 349         context_provider->ContextGL()->LoseContextCHROMIUM(
 350             GL_GUILTY_CONTEXT_RESET_ARB,
 351             GL_INNOCENT_CONTEXT_RESET_ARB);
 352         context_provider->ContextGL()->Flush();
 353         break;
 354       case 3:
 355         EXPECT_TRUE(delegated_impl->ChildId());
 356         EXPECT_TRUE(did_reset_child_id_);
 357         EndTest();
 358         break;
 359     }
 360   }
 361
 362   virtual void InitializedRendererOnThread(LayerTreeHostImpl* host_impl,
 363                                            bool success) OVERRIDE {
 364     EXPECT_TRUE(success);
 365
 366     if (num_activates_ < 2)
 367       return;
 368
 369     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
 370     FakeDelegatedRendererLayerImpl* delegated_impl =
 371         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
 372
 373     EXPECT_EQ(2, num_activates_);
 374     EXPECT_FALSE(delegated_impl->ChildId());
 375     did_reset_child_id_ = true;
 376   }
 377
 378  protected:
 379   int num_activates_;
 380   bool did_reset_child_id_;
 381 };
 382
 383 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestCreateChildId);
 384
 385 // Test that we can gracefully handle invalid frames after the context was lost.
 386 // For example, we might be trying to use the previous frame in that case and
 387 // have to make sure we don't crash because our resource accounting goes wrong.
 388 class LayerTreeHostDelegatedTestInvalidFrameAfterContextLost
 389     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
 390  public:
 391   LayerTreeHostDelegatedTestInvalidFrameAfterContextLost()
 392       : num_activates_(0), num_output_surfaces_initialized_(0) {}
 393
 394   virtual void DidCommit() OVERRIDE {
 395     if (TestEnded())
 396       return;
 397     scoped_ptr<DelegatedFrameData> frame1 =
 398         CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 399     AddTextureQuad(frame1.get(), 999);
 400     AddTransferableResource(frame1.get(), 999);
 401     SetFrameData(frame1.Pass());
 402   }
 403
 404   virtual void DidInitializeOutputSurface() OVERRIDE {
 405     if (!num_output_surfaces_initialized_++)
 406       return;
 407
 408     scoped_refptr<DelegatedRendererLayer> old_delegated = delegated_;
 409     SetFrameData(
 410         CreateInvalidFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1)));
 411     // Make sure we end up using the same layer, or we won't test the right
 412     // thing, which is to make sure we can handle an invalid frame when using
 413     // a stale layer from before the context was lost.
 414     DCHECK(delegated_.get() == old_delegated.get());
 415   }
 416
 417   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 418     if (host_impl->active_tree()->source_frame_number() < 1)
 419       return;
 420
 421     TestContextProvider* context_provider = static_cast<TestContextProvider*>(
 422         host_impl->output_surface()->context_provider().get());
 423
 424     ++num_activates_;
 425     switch (num_activates_) {
 426       case 2:
 427         context_provider->ContextGL()->LoseContextCHROMIUM(
 428             GL_GUILTY_CONTEXT_RESET_ARB,
 429             GL_INNOCENT_CONTEXT_RESET_ARB);
 430         break;
 431       case 3:
 432         EndTest();
 433         break;
 434     }
 435   }
 436
 437   virtual void InitializedRendererOnThread(LayerTreeHostImpl* host_impl,
 438                                            bool success) OVERRIDE {
 439     EXPECT_TRUE(success);
 440
 441     if (num_activates_ < 2)
 442       return;
 443
 444     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
 445     FakeDelegatedRendererLayerImpl* delegated_impl =
 446         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
 447
 448     EXPECT_EQ(2, num_activates_);
 449     // Resources should have gotten cleared after the context was lost.
 450     EXPECT_EQ(0U, delegated_impl->Resources().size());
 451   }
 452
 453   virtual void AfterTest() OVERRIDE {
 454     LayerTreeHostDelegatedTestCaseSingleDelegatedLayer::AfterTest();
 455     EXPECT_EQ(2, num_output_surfaces_initialized_);
 456   }
 457
 458  protected:
 459   int num_activates_;
 460   int num_output_surfaces_initialized_;
 461 };
 462
 463 SINGLE_AND_MULTI_THREAD_TEST_F(
 464     LayerTreeHostDelegatedTestInvalidFrameAfterContextLost);
 465
 466 class LayerTreeHostDelegatedTestLayerUsesFrameDamage
 467     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
 468  public:
 469   LayerTreeHostDelegatedTestLayerUsesFrameDamage()
 470       : LayerTreeHostDelegatedTestCaseSingleDelegatedLayer(),
 471         first_draw_for_source_frame_(true) {}
 472
 473   virtual void DidCommit() OVERRIDE {
 474     int next_source_frame_number = layer_tree_host()->source_frame_number();
 475     switch (next_source_frame_number) {
 476       case 1:
 477         // The first time the layer gets a frame the whole layer should be
 478         // damaged.
 479         SetFrameData(
 480             CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1)));
 481         break;
 482       case 2:
 483         // A different frame size will damage the whole layer.
 484         SetFrameData(
 485             CreateFrameData(gfx::Rect(0, 0, 20, 20), gfx::Rect(0, 0, 0, 0)));
 486         break;
 487       case 3:
 488         // Should create a total amount of gfx::Rect(2, 2, 8, 6) damage:
 489         // (2, 2, 10, 6) clamped to the root output rect.
 490         SetFrameData(
 491             CreateFrameData(gfx::Rect(0, 0, 20, 20), gfx::Rect(2, 2, 5, 5)));
 492         SetFrameData(
 493             CreateFrameData(gfx::Rect(0, 0, 20, 20), gfx::Rect(7, 2, 5, 6)));
 494         break;
 495       case 4:
 496         // Should create zero damage.
 497         layer_tree_host()->SetNeedsCommit();
 498         break;
 499       case 5:
 500         // Should damage the full viewport.
 501         delegated_->SetBounds(gfx::Size(2, 2));
 502         break;
 503       case 6:
 504         // Should create zero damage.
 505         layer_tree_host()->SetNeedsCommit();
 506         break;
 507       case 7:
 508         // Should damage the full layer, tho the frame size is not changing.
 509         delegated_->SetBounds(gfx::Size(6, 6));
 510         SetFrameData(
 511             CreateFrameData(gfx::Rect(0, 0, 20, 20), gfx::Rect(1, 1, 2, 2)));
 512         break;
 513       case 8:
 514         // Should create zero damage.
 515         layer_tree_host()->SetNeedsCommit();
 516         break;
 517       case 9:
 518         // Should create zero damage.
 519         layer_tree_host()->SetNeedsCommit();
 520         break;
 521       case 10:
 522         // Changing the frame size damages the full layer.
 523         SetFrameData(
 524             CreateFrameData(gfx::Rect(0, 0, 5, 5), gfx::Rect(4, 4, 1, 1)));
 525         break;
 526       case 11:
 527         // An invalid frame isn't used, so it should not cause damage.
 528         SetFrameData(CreateInvalidFrameData(gfx::Rect(0, 0, 5, 5),
 529                                             gfx::Rect(4, 4, 1, 1)));
 530         break;
 531       case 12:
 532         // Should create gfx::Rect(1, 1, 2, 2) of damage.
 533         SetFrameData(
 534             CreateFrameData(gfx::Rect(0, 0, 5, 5), gfx::Rect(1, 1, 2, 2)));
 535         break;
 536       case 13:
 537         // Should create zero damage.
 538         layer_tree_host()->SetNeedsCommit();
 539         break;
 540       case 14:
 541         // Moving the layer out of the tree and back in will damage the whole
 542         // impl layer.
 543         delegated_->RemoveFromParent();
 544         layer_tree_host()->root_layer()->AddChild(delegated_);
 545         break;
 546       case 15:
 547         // Make a larger frame with lots of damage. Then a frame smaller than
 548         // the first frame's damage. The entire layer should be damaged, but
 549         // nothing more.
 550         SetFrameData(
 551             CreateFrameData(gfx::Rect(0, 0, 10, 10), gfx::Rect(0, 0, 10, 10)));
 552         SetFrameData(
 553             CreateFrameData(gfx::Rect(0, 0, 5, 5), gfx::Rect(1, 1, 2, 2)));
 554         break;
 555       case 16:
 556         // Make a frame with lots of damage. Then replace it with a frame with
 557         // no damage. The entire layer should be damaged, but nothing more.
 558         SetFrameData(
 559             CreateFrameData(gfx::Rect(0, 0, 10, 10), gfx::Rect(0, 0, 10, 10)));
 560         SetFrameData(
 561             CreateFrameData(gfx::Rect(0, 0, 10, 10), gfx::Rect(0, 0, 0, 0)));
 562         break;
 563       case 17:
 564         // Make another layer that uses the same frame provider. The new layer
 565         // should be damaged.
 566         delegated_copy_ = CreateDelegatedLayer(frame_provider_);
 567         delegated_copy_->SetPosition(gfx::Point(5, 0));
 568
 569         // Also set a new frame.
 570         SetFrameData(
 571             CreateFrameData(gfx::Rect(0, 0, 10, 10), gfx::Rect(4, 0, 1, 1)));
 572         break;
 573       case 18:
 574         // Set another new frame, both layers should be damaged in the same
 575         // ways.
 576         SetFrameData(
 577             CreateFrameData(gfx::Rect(0, 0, 10, 10), gfx::Rect(3, 3, 1, 1)));
 578         break;
 579     }
 580     first_draw_for_source_frame_ = true;
 581   }
 582
 583   virtual DrawResult PrepareToDrawOnThread(
 584       LayerTreeHostImpl* host_impl,
 585       LayerTreeHostImpl::FrameData* frame,
 586       DrawResult draw_result) OVERRIDE {
 587     EXPECT_EQ(DRAW_SUCCESS, draw_result);
 588
 589     if (!first_draw_for_source_frame_)
 590       return draw_result;
 591
 592     gfx::Rect damage_rect;
 593     if (!frame->has_no_damage) {
 594       damage_rect = frame->render_passes.back()->damage_rect;
 595     } else {
 596       // If there is no damage, then we have no render passes to send.
 597       EXPECT_TRUE(frame->render_passes.empty());
 598     }
 599
 600     switch (host_impl->active_tree()->source_frame_number()) {
 601       case 0:
 602         // First frame is damaged because of viewport resize.
 603         EXPECT_EQ(gfx::Rect(15, 15).ToString(), damage_rect.ToString());
 604         break;
 605       case 1:
 606         EXPECT_EQ(gfx::Rect(10, 10).ToString(), damage_rect.ToString());
 607         break;
 608       case 2:
 609         EXPECT_EQ(gfx::Rect(10, 10).ToString(), damage_rect.ToString());
 610         break;
 611       case 3:
 612         EXPECT_EQ(gfx::Rect(2, 2, 8, 6).ToString(), damage_rect.ToString());
 613         break;
 614       case 4:
 615         EXPECT_EQ(gfx::Rect().ToString(), damage_rect.ToString());
 616         break;
 617       case 5:
 618         EXPECT_EQ(gfx::Rect(10, 10).ToString(), damage_rect.ToString());
 619         break;
 620       case 6:
 621         EXPECT_EQ(gfx::Rect().ToString(), damage_rect.ToString());
 622         break;
 623       case 7:
 624         EXPECT_EQ(gfx::Rect(6, 6).ToString(), damage_rect.ToString());
 625         break;
 626       case 8:
 627         EXPECT_EQ(gfx::Rect().ToString(), damage_rect.ToString());
 628         break;
 629       case 9:
 630         EXPECT_EQ(gfx::Rect().ToString(), damage_rect.ToString());
 631         break;
 632       case 10:
 633         EXPECT_EQ(gfx::Rect(10, 10).ToString(), damage_rect.ToString());
 634         break;
 635       case 11:
 636         EXPECT_EQ(gfx::Rect().ToString(), damage_rect.ToString());
 637         break;
 638       case 12:
 639         EXPECT_EQ(gfx::Rect(1, 1, 2, 2).ToString(), damage_rect.ToString());
 640         break;
 641       case 13:
 642         EXPECT_EQ(gfx::Rect().ToString(), damage_rect.ToString());
 643         break;
 644       case 14:
 645         EXPECT_EQ(gfx::Rect(10, 10).ToString(), damage_rect.ToString());
 646         break;
 647       case 15:
 648         EXPECT_EQ(gfx::Rect(10, 10).ToString(), damage_rect.ToString());
 649         break;
 650       case 16:
 651         EXPECT_EQ(gfx::Rect(10, 10).ToString(), damage_rect.ToString());
 652         break;
 653       case 17:
 654         EXPECT_EQ(gfx::UnionRects(gfx::Rect(5, 0, 10, 10),
 655                                   gfx::Rect(4, 0, 1, 1)).ToString(),
 656                   damage_rect.ToString());
 657         break;
 658       case 18:
 659         EXPECT_EQ(gfx::Rect(3, 3, 6, 1).ToString(), damage_rect.ToString());
 660         EndTest();
 661         break;
 662     }
 663
 664     return draw_result;
 665   }
 666
 667  protected:
 668   scoped_refptr<DelegatedRendererLayer> delegated_copy_;
 669   bool first_draw_for_source_frame_;
 670 };
 671
 672 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestLayerUsesFrameDamage);
 673
 674 class LayerTreeHostDelegatedTestMergeResources
 675     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
 676  public:
 677   virtual void BeginTest() OVERRIDE {
 678     // Push two frames to the delegated renderer layer with no commit between.
 679
 680     // The first frame has resource 999.
 681     scoped_ptr<DelegatedFrameData> frame1 =
 682         CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 683     AddTextureQuad(frame1.get(), 999);
 684     AddTransferableResource(frame1.get(), 999);
 685     SetFrameData(frame1.Pass());
 686
 687     // The second frame uses resource 999 still, but also adds 555.
 688     scoped_ptr<DelegatedFrameData> frame2 =
 689         CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 690     AddTextureQuad(frame2.get(), 999);
 691     AddTransferableResource(frame2.get(), 999);
 692     AddTextureQuad(frame2.get(), 555);
 693     AddTransferableResource(frame2.get(), 555);
 694     SetFrameData(frame2.Pass());
 695
 696     // The resource 999 from frame1 is returned since it is still on the main
 697     // thread.
 698     ReturnedResourceArray returned_resources;
 699     resource_collection_->TakeUnusedResourcesForChildCompositor(
 700         &returned_resources);
 701     {
 702       unsigned expected[] = {999};
 703       EXPECT_RESOURCES(expected, returned_resources);
 704       EXPECT_TRUE(TestAndResetAvailable());
 705     }
 706
 707     PostSetNeedsCommitToMainThread();
 708   }
 709
 710   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 711     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
 712     FakeDelegatedRendererLayerImpl* delegated_impl =
 713         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
 714
 715     const ResourceProvider::ResourceIdMap& map =
 716         host_impl->resource_provider()->GetChildToParentMap(
 717             delegated_impl->ChildId());
 718
 719     // Both frames' resources should be in the parent's resource provider.
 720     EXPECT_EQ(2u, map.size());
 721     EXPECT_EQ(1u, map.count(999));
 722     EXPECT_EQ(1u, map.count(555));
 723
 724     EXPECT_EQ(2u, delegated_impl->Resources().size());
 725     EXPECT_EQ(1u, delegated_impl->Resources().count(999));
 726     EXPECT_EQ(1u, delegated_impl->Resources().count(555));
 727
 728     EndTest();
 729   }
 730 };
 731
 732 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestMergeResources);
 733
 734 class LayerTreeHostDelegatedTestRemapResourcesInQuads
 735     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
 736  public:
 737   virtual void BeginTest() OVERRIDE {
 738     // Generate a frame with two resources in it.
 739     scoped_ptr<DelegatedFrameData> frame =
 740         CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 741     AddTextureQuad(frame.get(), 999);
 742     AddTransferableResource(frame.get(), 999);
 743     AddTextureQuad(frame.get(), 555);
 744     AddTransferableResource(frame.get(), 555);
 745     SetFrameData(frame.Pass());
 746
 747     PostSetNeedsCommitToMainThread();
 748   }
 749
 750   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 751     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
 752     FakeDelegatedRendererLayerImpl* delegated_impl =
 753         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
 754
 755     const ResourceProvider::ResourceIdMap& map =
 756         host_impl->resource_provider()->GetChildToParentMap(
 757             delegated_impl->ChildId());
 758
 759     // The frame's resource should be in the parent's resource provider.
 760     EXPECT_EQ(2u, map.size());
 761     EXPECT_EQ(1u, map.count(999));
 762     EXPECT_EQ(1u, map.count(555));
 763
 764     ResourceProvider::ResourceId parent_resource_id1 = map.find(999)->second;
 765     EXPECT_NE(parent_resource_id1, 999u);
 766     ResourceProvider::ResourceId parent_resource_id2 = map.find(555)->second;
 767     EXPECT_NE(parent_resource_id2, 555u);
 768
 769     // The resources in the quads should be remapped to the parent's namespace.
 770     const TextureDrawQuad* quad1 = TextureDrawQuad::MaterialCast(
 771         delegated_impl->RenderPassesInDrawOrder()[0]->quad_list[0]);
 772     EXPECT_EQ(parent_resource_id1, quad1->resource_id);
 773     const TextureDrawQuad* quad2 = TextureDrawQuad::MaterialCast(
 774         delegated_impl->RenderPassesInDrawOrder()[0]->quad_list[1]);
 775     EXPECT_EQ(parent_resource_id2, quad2->resource_id);
 776
 777     EndTest();
 778   }
 779 };
 780
 781 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestRemapResourcesInQuads);
 782
 783 class LayerTreeHostDelegatedTestReturnUnusedResources
 784     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
 785  public:
 786   virtual void BeginTest() OVERRIDE {
 787     PostSetNeedsCommitToMainThread();
 788   }
 789
 790   virtual void DidCommitAndDrawFrame() OVERRIDE {
 791     scoped_ptr<DelegatedFrameData> frame;
 792     ReturnedResourceArray resources;
 793
 794     int next_source_frame_number = layer_tree_host()->source_frame_number();
 795     switch (next_source_frame_number) {
 796       case 1:
 797         // Generate a frame with two resources in it.
 798         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 799         AddTextureQuad(frame.get(), 999);
 800         AddTransferableResource(frame.get(), 999);
 801         AddTextureQuad(frame.get(), 555);
 802         AddTransferableResource(frame.get(), 555);
 803         SetFrameData(frame.Pass());
 804         break;
 805       case 2:
 806         // All of the resources are in use.
 807         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
 808         EXPECT_EQ(0u, resources.size());
 809         EXPECT_FALSE(TestAndResetAvailable());
 810
 811         // Keep using 999 but stop using 555.
 812         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 813         AddTextureQuad(frame.get(), 999);
 814         AddTransferableResource(frame.get(), 999);
 815         AddTextureQuad(frame.get(), 444);
 816         AddTransferableResource(frame.get(), 444);
 817         SetFrameData(frame.Pass());
 818         break;
 819       case 3:
 820         // 555 is no longer in use.
 821         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
 822         {
 823           unsigned expected[] = {555};
 824           EXPECT_RESOURCES(expected, resources);
 825           EXPECT_TRUE(TestAndResetAvailable());
 826         }
 827
 828         // Stop using any resources.
 829         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 830         SetFrameData(frame.Pass());
 831         break;
 832       case 4:
 833         // Postpone collecting resources for a frame. They should still be there
 834         // the next frame.
 835         layer_tree_host()->SetNeedsCommit();
 836         return;
 837       case 5:
 838         // 444 and 999 are no longer in use. We sent two refs to 999, so we
 839         // should get two back.
 840         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
 841         {
 842           unsigned expected[] = {444, 999, 999};
 843           EXPECT_RESOURCES(expected, resources);
 844           EXPECT_TRUE(TestAndResetAvailable());
 845         }
 846         EndTest();
 847         break;
 848     }
 849
 850     // Resources are never immediately released.
 851     ReturnedResourceArray empty_resources;
 852     resource_collection_->TakeUnusedResourcesForChildCompositor(
 853         &empty_resources);
 854     EXPECT_EQ(0u, empty_resources.size());
 855     EXPECT_FALSE(TestAndResetAvailable());
 856   }
 857
 858   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
 859                                    bool result) OVERRIDE {
 860     ReturnUnusedResourcesFromParent(host_impl);
 861   }
 862 };
 863
 864 SINGLE_AND_MULTI_THREAD_TEST_F(
 865     LayerTreeHostDelegatedTestReturnUnusedResources);
 866
 867 class LayerTreeHostDelegatedTestReusedResources
 868     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
 869  public:
 870   virtual void BeginTest() OVERRIDE {
 871     PostSetNeedsCommitToMainThread();
 872   }
 873
 874   virtual void DidCommitAndDrawFrame() OVERRIDE {
 875     scoped_ptr<DelegatedFrameData> frame;
 876     ReturnedResourceArray resources;
 877
 878     int next_source_frame_number = layer_tree_host()->source_frame_number();
 879     switch (next_source_frame_number) {
 880       case 1:
 881         // Generate a frame with some resources in it.
 882         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 883         AddTextureQuad(frame.get(), 999);
 884         AddTransferableResource(frame.get(), 999);
 885         AddTextureQuad(frame.get(), 555);
 886         AddTransferableResource(frame.get(), 555);
 887         AddTextureQuad(frame.get(), 444);
 888         AddTransferableResource(frame.get(), 444);
 889         SetFrameData(frame.Pass());
 890         break;
 891       case 2:
 892         // All of the resources are in use.
 893         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
 894         EXPECT_EQ(0u, resources.size());
 895         EXPECT_FALSE(TestAndResetAvailable());
 896
 897         // Keep using 999 but stop using 555 and 444.
 898         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 899         AddTextureQuad(frame.get(), 999);
 900         AddTransferableResource(frame.get(), 999);
 901         SetFrameData(frame.Pass());
 902
 903         // Resource are not immediately released.
 904         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
 905         EXPECT_EQ(0u, resources.size());
 906         EXPECT_FALSE(TestAndResetAvailable());
 907
 908         // Now using 555 and 444 again, but not 999.
 909         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 910         AddTextureQuad(frame.get(), 555);
 911         AddTransferableResource(frame.get(), 555);
 912         AddTextureQuad(frame.get(), 444);
 913         AddTransferableResource(frame.get(), 444);
 914         SetFrameData(frame.Pass());
 915         break;
 916       case 3:
 917         // The 999 resource is the only unused one. Two references were sent, so
 918         // two should be returned.
 919         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
 920         {
 921           unsigned expected[] = {999, 999};
 922           EXPECT_RESOURCES(expected, resources);
 923           EXPECT_TRUE(TestAndResetAvailable());
 924         }
 925         EndTest();
 926         break;
 927     }
 928   }
 929
 930   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
 931                                    bool result) OVERRIDE {
 932     ReturnUnusedResourcesFromParent(host_impl);
 933   }
 934 };
 935
 936 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestReusedResources);
 937
 938 class LayerTreeHostDelegatedTestFrameBeforeAck
 939     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
 940  public:
 941   virtual void BeginTest() OVERRIDE {
 942     PostSetNeedsCommitToMainThread();
 943   }
 944
 945   virtual void DidCommitAndDrawFrame() OVERRIDE {
 946     scoped_ptr<DelegatedFrameData> frame;
 947     ReturnedResourceArray resources;
 948
 949     int next_source_frame_number = layer_tree_host()->source_frame_number();
 950     switch (next_source_frame_number) {
 951       case 1:
 952         // Generate a frame with some resources in it.
 953         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 954         AddTextureQuad(frame.get(), 999);
 955         AddTransferableResource(frame.get(), 999);
 956         AddTextureQuad(frame.get(), 555);
 957         AddTransferableResource(frame.get(), 555);
 958         AddTextureQuad(frame.get(), 444);
 959         AddTransferableResource(frame.get(), 444);
 960         SetFrameData(frame.Pass());
 961         break;
 962       case 2:
 963         // All of the resources are in use.
 964         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
 965         EXPECT_EQ(0u, resources.size());
 966         EXPECT_FALSE(TestAndResetAvailable());
 967
 968         // Keep using 999 but stop using 555 and 444.
 969         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 970         AddTextureQuad(frame.get(), 999);
 971         AddTransferableResource(frame.get(), 999);
 972         SetFrameData(frame.Pass());
 973
 974         // Resource are not immediately released.
 975         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
 976         EXPECT_EQ(0u, resources.size());
 977         EXPECT_FALSE(TestAndResetAvailable());
 978
 979         // The parent compositor (this one) does a commit.
 980         break;
 981       case 3:
 982         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
 983         {
 984           unsigned expected[] = {444, 555};
 985           EXPECT_RESOURCES(expected, resources);
 986           EXPECT_TRUE(TestAndResetAvailable());
 987         }
 988
 989         // The child compositor sends a frame referring to resources not in the
 990         // frame.
 991         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
 992         AddTextureQuad(frame.get(), 999);
 993         AddTextureQuad(frame.get(), 555);
 994         AddTextureQuad(frame.get(), 444);
 995         SetFrameData(frame.Pass());
 996         break;
 997     }
 998   }
 999
1000   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1001     if (host_impl->active_tree()->source_frame_number() != 3)
1002       return;
1003
1004     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
1005     FakeDelegatedRendererLayerImpl* delegated_impl =
1006         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
1007
1008     const ResourceProvider::ResourceIdMap& map =
1009         host_impl->resource_provider()->GetChildToParentMap(
1010             delegated_impl->ChildId());
1011
1012     // The bad frame should be dropped. So we should only have one quad (the
1013     // one with resource 999) on the impl tree. And only 999 will be present
1014     // in the parent's resource provider.
1015     EXPECT_EQ(1u, map.size());
1016     EXPECT_EQ(1u, map.count(999));
1017
1018     EXPECT_EQ(1u, delegated_impl->Resources().size());
1019     EXPECT_EQ(1u, delegated_impl->Resources().count(999));
1020
1021     const RenderPass* pass = delegated_impl->RenderPassesInDrawOrder()[0];
1022     EXPECT_EQ(1u, pass->quad_list.size());
1023     const TextureDrawQuad* quad = TextureDrawQuad::MaterialCast(
1024         pass->quad_list[0]);
1025     EXPECT_EQ(map.find(999)->second, quad->resource_id);
1026
1027     EndTest();
1028   }
1029
1030   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1031                                    bool result) OVERRIDE {
1032     ReturnUnusedResourcesFromParent(host_impl);
1033   }
1034 };
1035
1036 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestFrameBeforeAck);
1037
1038 class LayerTreeHostDelegatedTestFrameBeforeTakeResources
1039     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
1040  public:
1041   virtual void BeginTest() OVERRIDE {
1042     PostSetNeedsCommitToMainThread();
1043   }
1044
1045   virtual void DidCommitAndDrawFrame() OVERRIDE {
1046     scoped_ptr<DelegatedFrameData> frame;
1047     ReturnedResourceArray resources;
1048
1049     int next_source_frame_number = layer_tree_host()->source_frame_number();
1050     switch (next_source_frame_number) {
1051       case 1:
1052         // Generate a frame with some resources in it.
1053         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1054         AddTextureQuad(frame.get(), 999);
1055         AddTransferableResource(frame.get(), 999);
1056         AddTextureQuad(frame.get(), 555);
1057         AddTransferableResource(frame.get(), 555);
1058         AddTextureQuad(frame.get(), 444);
1059         AddTransferableResource(frame.get(), 444);
1060         SetFrameData(frame.Pass());
1061         break;
1062       case 2:
1063         // All of the resources are in use.
1064         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1065         EXPECT_EQ(0u, resources.size());
1066         EXPECT_FALSE(TestAndResetAvailable());
1067
1068         // Keep using 999 but stop using 555 and 444.
1069         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1070         AddTextureQuad(frame.get(), 999);
1071         AddTransferableResource(frame.get(), 999);
1072         SetFrameData(frame.Pass());
1073
1074         // Resource are not immediately released.
1075         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1076         EXPECT_EQ(0u, resources.size());
1077         EXPECT_FALSE(TestAndResetAvailable());
1078
1079         // The parent compositor (this one) does a commit.
1080         break;
1081       case 3:
1082         // The child compositor sends a frame before taking resources back
1083         // from the previous commit. This frame makes use of the resources 555
1084         // and 444, which were just released during commit.
1085         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1086         AddTextureQuad(frame.get(), 999);
1087         AddTransferableResource(frame.get(), 999);
1088         AddTextureQuad(frame.get(), 555);
1089         AddTransferableResource(frame.get(), 555);
1090         AddTextureQuad(frame.get(), 444);
1091         AddTransferableResource(frame.get(), 444);
1092         SetFrameData(frame.Pass());
1093
1094         // The resources are used by the new frame but are returned anyway since
1095         // we passed them again.
1096         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1097         {
1098           unsigned expected[] = {444, 555};
1099           EXPECT_RESOURCES(expected, resources);
1100           EXPECT_TRUE(TestAndResetAvailable());
1101         }
1102         break;
1103       case 4:
1104         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1105         EXPECT_EQ(0u, resources.size());
1106         EXPECT_FALSE(TestAndResetAvailable());
1107         EndTest();
1108         break;
1109     }
1110   }
1111
1112   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1113     if (host_impl->active_tree()->source_frame_number() != 3)
1114       return;
1115
1116     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
1117     FakeDelegatedRendererLayerImpl* delegated_impl =
1118         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
1119
1120     const ResourceProvider::ResourceIdMap& map =
1121         host_impl->resource_provider()->GetChildToParentMap(
1122             delegated_impl->ChildId());
1123
1124     // The third frame has all of the resources in it again, the delegated
1125     // renderer layer should continue to own the resources for it.
1126     EXPECT_EQ(3u, map.size());
1127     EXPECT_EQ(1u, map.count(999));
1128     EXPECT_EQ(1u, map.count(555));
1129     EXPECT_EQ(1u, map.count(444));
1130
1131     EXPECT_EQ(3u, delegated_impl->Resources().size());
1132     EXPECT_EQ(1u, delegated_impl->Resources().count(999));
1133     EXPECT_EQ(1u, delegated_impl->Resources().count(555));
1134     EXPECT_EQ(1u, delegated_impl->Resources().count(444));
1135
1136     const RenderPass* pass = delegated_impl->RenderPassesInDrawOrder()[0];
1137     EXPECT_EQ(3u, pass->quad_list.size());
1138     const TextureDrawQuad* quad1 = TextureDrawQuad::MaterialCast(
1139         pass->quad_list[0]);
1140     EXPECT_EQ(map.find(999)->second, quad1->resource_id);
1141     const TextureDrawQuad* quad2 = TextureDrawQuad::MaterialCast(
1142         pass->quad_list[1]);
1143     EXPECT_EQ(map.find(555)->second, quad2->resource_id);
1144     const TextureDrawQuad* quad3 = TextureDrawQuad::MaterialCast(
1145         pass->quad_list[2]);
1146     EXPECT_EQ(map.find(444)->second, quad3->resource_id);
1147   }
1148
1149   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1150                                    bool result) OVERRIDE {
1151     ReturnUnusedResourcesFromParent(host_impl);
1152   }
1153 };
1154
1155 SINGLE_AND_MULTI_THREAD_TEST_F(
1156     LayerTreeHostDelegatedTestFrameBeforeTakeResources);
1157
1158 class LayerTreeHostDelegatedTestBadFrame
1159     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
1160  public:
1161   virtual void BeginTest() OVERRIDE {
1162     PostSetNeedsCommitToMainThread();
1163   }
1164
1165   virtual void DidCommitAndDrawFrame() OVERRIDE {
1166     scoped_ptr<DelegatedFrameData> frame;
1167     ReturnedResourceArray resources;
1168
1169     int next_source_frame_number = layer_tree_host()->source_frame_number();
1170     switch (next_source_frame_number) {
1171       case 1:
1172         // Generate a frame with some resources in it.
1173         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1174         AddTextureQuad(frame.get(), 999);
1175         AddTransferableResource(frame.get(), 999);
1176         AddTextureQuad(frame.get(), 555);
1177         AddTransferableResource(frame.get(), 555);
1178         SetFrameData(frame.Pass());
1179         break;
1180       case 2:
1181         // All of the resources are in use.
1182         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1183         EXPECT_EQ(0u, resources.size());
1184         EXPECT_FALSE(TestAndResetAvailable());
1185
1186         // Generate a bad frame with a resource the layer doesn't have. The
1187         // 885 and 775 resources are unknown, while ownership of the legit 444
1188         // resource is passed in here. The bad frame does not use any of the
1189         // previous resources, 999 or 555.
1190         // A bad quad is present both before and after the good quad.
1191         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1192         AddTextureQuad(frame.get(), 885);
1193         AddTextureQuad(frame.get(), 444);
1194         AddTransferableResource(frame.get(), 444);
1195         AddTextureQuad(frame.get(), 775);
1196         SetFrameData(frame.Pass());
1197
1198         // The parent compositor (this one) does a commit.
1199         break;
1200       case 3:
1201         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1202         EXPECT_EQ(0u, resources.size());
1203         EXPECT_FALSE(TestAndResetAvailable());
1204
1205         // Now send a good frame with 999 again.
1206         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1207         AddTextureQuad(frame.get(), 999);
1208         SetFrameData(frame.Pass());
1209
1210         // The bad frame's resource is given back to the child compositor.
1211         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1212         {
1213           unsigned expected[] = {444};
1214           EXPECT_RESOURCES(expected, resources);
1215           EXPECT_TRUE(TestAndResetAvailable());
1216         }
1217         break;
1218       case 4:
1219         // The unused 555 from the last good frame is now released.
1220         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1221         {
1222           unsigned expected[] = {555};
1223           EXPECT_RESOURCES(expected, resources);
1224           EXPECT_TRUE(TestAndResetAvailable());
1225         }
1226
1227         EndTest();
1228         break;
1229     }
1230   }
1231
1232   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1233                                    bool result) OVERRIDE {
1234     if (host_impl->active_tree()->source_frame_number() < 1)
1235       return;
1236
1237     ReturnUnusedResourcesFromParent(host_impl);
1238
1239     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
1240     FakeDelegatedRendererLayerImpl* delegated_impl =
1241         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
1242
1243     const ResourceProvider::ResourceIdMap& map =
1244         host_impl->resource_provider()->GetChildToParentMap(
1245             delegated_impl->ChildId());
1246
1247     switch (host_impl->active_tree()->source_frame_number()) {
1248       case 1: {
1249         // We have the first good frame with just 990 and 555 in it.
1250         // layer.
1251         EXPECT_EQ(2u, map.size());
1252         EXPECT_EQ(1u, map.count(999));
1253         EXPECT_EQ(1u, map.count(555));
1254
1255         EXPECT_EQ(2u, delegated_impl->Resources().size());
1256         EXPECT_EQ(1u, delegated_impl->Resources().count(999));
1257         EXPECT_EQ(1u, delegated_impl->Resources().count(555));
1258
1259         const RenderPass* pass = delegated_impl->RenderPassesInDrawOrder()[0];
1260         EXPECT_EQ(2u, pass->quad_list.size());
1261         const TextureDrawQuad* quad1 = TextureDrawQuad::MaterialCast(
1262             pass->quad_list[0]);
1263         EXPECT_EQ(map.find(999)->second, quad1->resource_id);
1264         const TextureDrawQuad* quad2 = TextureDrawQuad::MaterialCast(
1265             pass->quad_list[1]);
1266         EXPECT_EQ(map.find(555)->second, quad2->resource_id);
1267         break;
1268       }
1269       case 2: {
1270         // We only keep resources from the last valid frame.
1271         EXPECT_EQ(2u, map.size());
1272         EXPECT_EQ(1u, map.count(999));
1273         EXPECT_EQ(1u, map.count(555));
1274
1275         EXPECT_EQ(2u, delegated_impl->Resources().size());
1276         EXPECT_EQ(1u, delegated_impl->Resources().count(999));
1277         EXPECT_EQ(1u, delegated_impl->Resources().count(555));
1278
1279         // The bad frame is dropped though, we still have the frame with 999 and
1280         // 555 in it.
1281         const RenderPass* pass = delegated_impl->RenderPassesInDrawOrder()[0];
1282         EXPECT_EQ(2u, pass->quad_list.size());
1283         const TextureDrawQuad* quad1 = TextureDrawQuad::MaterialCast(
1284             pass->quad_list[0]);
1285         EXPECT_EQ(map.find(999)->second, quad1->resource_id);
1286         const TextureDrawQuad* quad2 = TextureDrawQuad::MaterialCast(
1287             pass->quad_list[1]);
1288         EXPECT_EQ(map.find(555)->second, quad2->resource_id);
1289         break;
1290       }
1291       case 3: {
1292         // We have the new good frame with just 999 in it.
1293         EXPECT_EQ(1u, map.size());
1294         EXPECT_EQ(1u, map.count(999));
1295
1296         EXPECT_EQ(1u, delegated_impl->Resources().size());
1297         EXPECT_EQ(1u, delegated_impl->Resources().count(999));
1298
1299         const RenderPass* pass = delegated_impl->RenderPassesInDrawOrder()[0];
1300         EXPECT_EQ(1u, pass->quad_list.size());
1301         const TextureDrawQuad* quad1 = TextureDrawQuad::MaterialCast(
1302             pass->quad_list[0]);
1303         EXPECT_EQ(map.find(999)->second, quad1->resource_id);
1304         break;
1305       }
1306     }
1307   }
1308 };
1309
1310 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestBadFrame);
1311
1312 class LayerTreeHostDelegatedTestUnnamedResource
1313     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
1314  public:
1315   virtual void BeginTest() OVERRIDE {
1316     PostSetNeedsCommitToMainThread();
1317   }
1318
1319   virtual void DidCommit() OVERRIDE {
1320     scoped_ptr<DelegatedFrameData> frame;
1321     ReturnedResourceArray resources;
1322
1323     int next_source_frame_number = layer_tree_host()->source_frame_number();
1324     switch (next_source_frame_number) {
1325       case 1:
1326         // This frame includes two resources in it, but only uses one.
1327         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1328         AddTransferableResource(frame.get(), 999);
1329         AddTextureQuad(frame.get(), 555);
1330         AddTransferableResource(frame.get(), 555);
1331         SetFrameData(frame.Pass());
1332         break;
1333       case 2:
1334         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1335         EXPECT_EQ(0u, resources.size());
1336         EXPECT_FALSE(TestAndResetAvailable());
1337
1338         // Now send an empty frame.
1339         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1340         SetFrameData(frame.Pass());
1341
1342         // The unused resource should be returned.
1343         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1344         {
1345           unsigned expected[] = {999};
1346           EXPECT_RESOURCES(expected, resources);
1347           EXPECT_TRUE(TestAndResetAvailable());
1348         }
1349
1350         EndTest();
1351         break;
1352     }
1353   }
1354
1355   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1356     if (host_impl->active_tree()->source_frame_number() != 1)
1357       return;
1358
1359     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
1360     FakeDelegatedRendererLayerImpl* delegated_impl =
1361         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
1362
1363     const ResourceProvider::ResourceIdMap& map =
1364         host_impl->resource_provider()->GetChildToParentMap(
1365             delegated_impl->ChildId());
1366
1367     // The layer only held on to the resource that was used.
1368     EXPECT_EQ(1u, map.size());
1369     EXPECT_EQ(1u, map.count(555));
1370
1371     EXPECT_EQ(1u, delegated_impl->Resources().size());
1372     EXPECT_EQ(1u, delegated_impl->Resources().count(555));
1373   }
1374 };
1375
1376 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestUnnamedResource);
1377
1378 class LayerTreeHostDelegatedTestDontLeakResource
1379     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
1380  public:
1381   virtual void BeginTest() OVERRIDE {
1382     PostSetNeedsCommitToMainThread();
1383   }
1384
1385   virtual void DidCommitAndDrawFrame() OVERRIDE {
1386     scoped_ptr<DelegatedFrameData> frame;
1387     ReturnedResourceArray resources;
1388
1389     int next_source_frame_number = layer_tree_host()->source_frame_number();
1390     switch (next_source_frame_number) {
1391       case 1:
1392         // This frame includes two resources in it.
1393         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1394         AddTextureQuad(frame.get(), 999);
1395         AddTransferableResource(frame.get(), 999);
1396         AddTextureQuad(frame.get(), 555);
1397         AddTransferableResource(frame.get(), 555);
1398         SetFrameData(frame.Pass());
1399
1400         // But then we immediately stop using 999.
1401         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1402         AddTextureQuad(frame.get(), 555);
1403         AddTransferableResource(frame.get(), 555);
1404         SetFrameData(frame.Pass());
1405         break;
1406       case 2:
1407         // The unused resources should be returned. 555 is still used, but it's
1408         // returned once to account for the first frame.
1409         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1410         {
1411           unsigned expected[] = {555, 999};
1412           EXPECT_RESOURCES(expected, resources);
1413           EXPECT_TRUE(TestAndResetAvailable());
1414         }
1415         // Send a frame with no resources in it.
1416         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1417         SetFrameData(frame.Pass());
1418         break;
1419       case 3:
1420         // The now unused resource 555 should be returned.
1421         resources.clear();
1422         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1423         {
1424           unsigned expected[] = {555};
1425           EXPECT_RESOURCES(expected, resources);
1426           EXPECT_TRUE(TestAndResetAvailable());
1427         }
1428         EndTest();
1429         break;
1430     }
1431   }
1432
1433   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1434     if (host_impl->active_tree()->source_frame_number() != 1)
1435       return;
1436
1437     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
1438     FakeDelegatedRendererLayerImpl* delegated_impl =
1439         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
1440
1441     const ResourceProvider::ResourceIdMap& map =
1442         host_impl->resource_provider()->GetChildToParentMap(
1443             delegated_impl->ChildId());
1444
1445     // The layer only held on to the resource that was used.
1446     EXPECT_EQ(1u, map.size());
1447     EXPECT_EQ(1u, map.count(555));
1448
1449     EXPECT_EQ(1u, delegated_impl->Resources().size());
1450     EXPECT_EQ(1u, delegated_impl->Resources().count(555));
1451   }
1452
1453   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1454                                    bool result) OVERRIDE {
1455     ReturnUnusedResourcesFromParent(host_impl);
1456   }
1457 };
1458
1459 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestDontLeakResource);
1460
1461 class LayerTreeHostDelegatedTestResourceSentToParent
1462     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
1463  public:
1464   virtual void DidCommitAndDrawFrame() OVERRIDE {
1465     scoped_ptr<DelegatedFrameData> frame;
1466     ReturnedResourceArray resources;
1467
1468     int next_source_frame_number = layer_tree_host()->source_frame_number();
1469     switch (next_source_frame_number) {
1470       case 1:
1471         // This frame includes two resources in it.
1472         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1473         AddTextureQuad(frame.get(), 999);
1474         AddTransferableResource(frame.get(), 999);
1475         AddTextureQuad(frame.get(), 555);
1476         AddTransferableResource(frame.get(), 555);
1477         SetFrameData(frame.Pass());
1478         break;
1479       case 2:
1480         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1481         EXPECT_EQ(0u, resources.size());
1482         EXPECT_FALSE(TestAndResetAvailable());
1483
1484         // 999 is in use in the grandparent compositor, generate a frame without
1485         // it present.
1486         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1487         AddTextureQuad(frame.get(), 555);
1488         AddTransferableResource(frame.get(), 555);
1489         SetFrameData(frame.Pass());
1490         break;
1491       case 3:
1492         // Since 999 is in the grandparent it is not returned.
1493         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1494         EXPECT_EQ(0u, resources.size());
1495         EXPECT_FALSE(TestAndResetAvailable());
1496
1497         // The impl side will get back the resource at some point.
1498         ImplThreadTaskRunner()->PostTask(FROM_HERE,
1499                                          receive_resource_on_thread_);
1500         break;
1501     }
1502   }
1503
1504   void ReceiveResourceOnThread(LayerTreeHostImpl* host_impl) {
1505     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
1506     FakeDelegatedRendererLayerImpl* delegated_impl =
1507         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
1508
1509     const ResourceProvider::ResourceIdMap& map =
1510         host_impl->resource_provider()->GetChildToParentMap(
1511             delegated_impl->ChildId());
1512
1513     // Receive 999 back from the grandparent.
1514     CompositorFrameAck ack;
1515     output_surface()->ReturnResource(map.find(999)->second, &ack);
1516     host_impl->ReclaimResources(&ack);
1517   }
1518
1519   virtual void UnusedResourcesAreAvailable() OVERRIDE {
1520     EXPECT_EQ(3, layer_tree_host()->source_frame_number());
1521
1522     ReturnedResourceArray resources;
1523
1524     // 999 was returned from the grandparent and could be released.
1525     resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1526     {
1527       unsigned expected[] = {999};
1528       EXPECT_RESOURCES(expected, resources);
1529     }
1530
1531     EndTest();
1532   }
1533
1534   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1535     if (host_impl->active_tree()->source_frame_number() < 1)
1536       return;
1537
1538     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
1539     FakeDelegatedRendererLayerImpl* delegated_impl =
1540         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
1541
1542     const ResourceProvider::ResourceIdMap& map =
1543         host_impl->resource_provider()->GetChildToParentMap(
1544             delegated_impl->ChildId());
1545
1546     switch (host_impl->active_tree()->source_frame_number()) {
1547       case 1: {
1548         EXPECT_EQ(2u, map.size());
1549         EXPECT_EQ(1u, map.count(999));
1550         EXPECT_EQ(1u, map.count(555));
1551
1552         EXPECT_EQ(2u, delegated_impl->Resources().size());
1553         EXPECT_EQ(1u, delegated_impl->Resources().count(999));
1554         EXPECT_EQ(1u, delegated_impl->Resources().count(555));
1555
1556         // The 999 resource will be sent to a grandparent compositor.
1557         break;
1558       }
1559       case 2: {
1560         EXPECT_EQ(2u, map.size());
1561         EXPECT_EQ(1u, map.count(999));
1562         EXPECT_EQ(1u, map.count(555));
1563
1564         // 999 is in the parent, so not held by delegated renderer layer.
1565         EXPECT_EQ(1u, delegated_impl->Resources().size());
1566         EXPECT_EQ(1u, delegated_impl->Resources().count(555));
1567
1568         receive_resource_on_thread_ =
1569             base::Bind(&LayerTreeHostDelegatedTestResourceSentToParent::
1570                             ReceiveResourceOnThread,
1571                        base::Unretained(this),
1572                        host_impl);
1573         break;
1574       }
1575       case 3:
1576         // 999 should be released.
1577         EXPECT_EQ(1u, map.size());
1578         EXPECT_EQ(1u, map.count(555));
1579
1580         EXPECT_EQ(1u, delegated_impl->Resources().size());
1581         EXPECT_EQ(1u, delegated_impl->Resources().count(map.find(555)->second));
1582         break;
1583     }
1584   }
1585
1586   base::Closure receive_resource_on_thread_;
1587 };
1588
1589 SINGLE_AND_MULTI_THREAD_DELEGATING_RENDERER_TEST_F(
1590     LayerTreeHostDelegatedTestResourceSentToParent);
1591
1592 class LayerTreeHostDelegatedTestCommitWithoutTake
1593     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
1594  public:
1595   virtual void BeginTest() OVERRIDE {
1596     // Prevent drawing with resources that are sent to the grandparent.
1597     layer_tree_host()->SetViewportSize(gfx::Size());
1598     PostSetNeedsCommitToMainThread();
1599   }
1600
1601   virtual void DidCommit() OVERRIDE {
1602     scoped_ptr<DelegatedFrameData> frame;
1603     ReturnedResourceArray resources;
1604
1605     int next_source_frame_number = layer_tree_host()->source_frame_number();
1606     switch (next_source_frame_number) {
1607       case 1:
1608         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1609         AddTextureQuad(frame.get(), 999);
1610         AddTransferableResource(frame.get(), 999);
1611         AddTextureQuad(frame.get(), 555);
1612         AddTransferableResource(frame.get(), 555);
1613         AddTextureQuad(frame.get(), 444);
1614         AddTransferableResource(frame.get(), 444);
1615         SetFrameData(frame.Pass());
1616         break;
1617       case 2:
1618         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1619         EXPECT_EQ(0u, resources.size());
1620         EXPECT_FALSE(TestAndResetAvailable());
1621
1622         // Stop using 999 and 444 in this frame and commit.
1623         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1624         AddTextureQuad(frame.get(), 555);
1625         AddTransferableResource(frame.get(), 555);
1626         SetFrameData(frame.Pass());
1627         // 999 and 444 will be returned for frame 1, but not 555 since it's in
1628         // the current frame.
1629         break;
1630       case 3:
1631         // Don't take resources here, but set a new frame that uses 999 again.
1632         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1633         AddTextureQuad(frame.get(), 999);
1634         AddTransferableResource(frame.get(), 999);
1635         AddTextureQuad(frame.get(), 555);
1636         AddTransferableResource(frame.get(), 555);
1637         SetFrameData(frame.Pass());
1638         break;
1639       case 4:
1640         // 555 from frame 1 and 2 isn't returned since it's still in use. 999
1641         // from frame 1 is returned though.
1642         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1643         {
1644           unsigned expected[] = {444, 999};
1645           EXPECT_RESOURCES(expected, resources);
1646           EXPECT_TRUE(TestAndResetAvailable());
1647         }
1648
1649         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1650         SetFrameData(frame.Pass());
1651         // 555 will be returned 3 times for frames 1 2 and 3, and 999 will be
1652         // returned once for frame 3.
1653         break;
1654       case 5:
1655         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1656         {
1657           unsigned expected[] = {555, 555, 555, 999};
1658           EXPECT_RESOURCES(expected, resources);
1659           EXPECT_TRUE(TestAndResetAvailable());
1660         }
1661
1662         EndTest();
1663         break;
1664     }
1665   }
1666
1667   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1668     if (host_impl->active_tree()->source_frame_number() < 1)
1669       return;
1670
1671     LayerImpl* root_impl = host_impl->active_tree()->root_layer();
1672     FakeDelegatedRendererLayerImpl* delegated_impl =
1673         static_cast<FakeDelegatedRendererLayerImpl*>(root_impl->children()[0]);
1674
1675     const ResourceProvider::ResourceIdMap& map =
1676         host_impl->resource_provider()->GetChildToParentMap(
1677             delegated_impl->ChildId());
1678
1679     switch (host_impl->active_tree()->source_frame_number()) {
1680       case 1:
1681         EXPECT_EQ(3u, map.size());
1682         EXPECT_EQ(1u, map.count(999));
1683         EXPECT_EQ(1u, map.count(555));
1684         EXPECT_EQ(1u, map.count(444));
1685
1686         EXPECT_EQ(3u, delegated_impl->Resources().size());
1687         EXPECT_EQ(1u, delegated_impl->Resources().count(999));
1688         EXPECT_EQ(1u, delegated_impl->Resources().count(555));
1689         EXPECT_EQ(1u, delegated_impl->Resources().count(444));
1690         break;
1691       case 2:
1692         EXPECT_EQ(1u, map.size());
1693         EXPECT_EQ(1u, map.count(555));
1694
1695         EXPECT_EQ(1u, delegated_impl->Resources().size());
1696         EXPECT_EQ(1u, delegated_impl->Resources().count(555));
1697         break;
1698       case 3:
1699         EXPECT_EQ(2u, map.size());
1700         EXPECT_EQ(1u, map.count(999));
1701         EXPECT_EQ(1u, map.count(555));
1702
1703         EXPECT_EQ(2u, delegated_impl->Resources().size());
1704         EXPECT_EQ(1u, delegated_impl->Resources().count(999));
1705         EXPECT_EQ(1u, delegated_impl->Resources().count(555));
1706     }
1707   }
1708 };
1709
1710 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestCommitWithoutTake);
1711
1712 class DelegatedFrameIsActivatedDuringCommit
1713     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
1714  protected:
1715   DelegatedFrameIsActivatedDuringCommit() : returned_resource_count_(0) {}
1716
1717   virtual void BeginTest() OVERRIDE {
1718     activate_count_ = 0;
1719
1720     scoped_ptr<DelegatedFrameData> frame =
1721         CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1722     AddTextureQuad(frame.get(), 999);
1723     AddTransferableResource(frame.get(), 999);
1724     SetFrameData(frame.Pass());
1725
1726     PostSetNeedsCommitToMainThread();
1727   }
1728
1729   virtual void WillActivateTreeOnThread(LayerTreeHostImpl* impl) OVERRIDE {
1730     ++activate_count_;
1731   }
1732
1733   virtual void DidCommit() OVERRIDE {
1734     switch (layer_tree_host()->source_frame_number()) {
1735       case 1: {
1736         // The first frame has been activated. Set a new frame, and
1737         // expect the next commit to finish *after* it is activated.
1738         scoped_ptr<DelegatedFrameData> frame =
1739             CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1740         AddTextureQuad(frame.get(), 555);
1741         AddTransferableResource(frame.get(), 555);
1742         SetFrameData(frame.Pass());
1743         break;
1744       }
1745       case 2:
1746         // The second frame has been activated. Remove the layer from
1747         // the tree to cause another commit/activation. The commit should
1748         // finish *after* the layer is removed from the active tree.
1749         delegated_->RemoveFromParent();
1750         break;
1751       case 3:
1752         // Finish the test by releasing resources on the next frame.
1753         scoped_ptr<DelegatedFrameData> frame =
1754             CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1755         SetFrameData(frame.Pass());
1756         break;
1757     }
1758   }
1759
1760   virtual void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1761     switch (host_impl->active_tree()->source_frame_number()) {
1762       case 0: {
1763         // The activate for the 1st frame should have happened before now.
1764         EXPECT_EQ(1, activate_count_);
1765         break;
1766       }
1767       case 1: {
1768         // The activate for the 2nd frame should have happened before now.
1769         EXPECT_EQ(2, activate_count_);
1770         break;
1771       }
1772       case 2: {
1773         // The activate to remove the layer should have happened before now.
1774         EXPECT_EQ(3, activate_count_);
1775         break;
1776       }
1777       case 3: {
1778         NOTREACHED();
1779         break;
1780       }
1781     }
1782   }
1783
1784   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1785                                    bool result) OVERRIDE {
1786     ReturnUnusedResourcesFromParent(host_impl);
1787   }
1788
1789   virtual void UnusedResourcesAreAvailable() OVERRIDE {
1790     LayerTreeHostDelegatedTestCaseSingleDelegatedLayer::
1791         UnusedResourcesAreAvailable();
1792     ReturnedResourceArray resources;
1793     resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1794     EXPECT_TRUE(TestAndResetAvailable());
1795     returned_resource_count_ += resources.size();
1796     if (returned_resource_count_ == 2)
1797       EndTest();
1798   }
1799
1800   int activate_count_;
1801   size_t returned_resource_count_;
1802 };
1803
1804 SINGLE_AND_MULTI_THREAD_TEST_F(
1805     DelegatedFrameIsActivatedDuringCommit);
1806
1807 class LayerTreeHostDelegatedTestTwoImplLayers
1808     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
1809  public:
1810   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
1811
1812   virtual void DidCommitAndDrawFrame() OVERRIDE {
1813     scoped_ptr<DelegatedFrameData> frame;
1814     ReturnedResourceArray resources;
1815
1816     int next_source_frame_number = layer_tree_host()->source_frame_number();
1817     switch (next_source_frame_number) {
1818       case 1:
1819         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1820         AddTextureQuad(frame.get(), 999);
1821         AddTransferableResource(frame.get(), 999);
1822         AddTextureQuad(frame.get(), 555);
1823         AddTransferableResource(frame.get(), 555);
1824         SetFrameData(frame.Pass());
1825         break;
1826       case 2:
1827         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1828         EXPECT_EQ(0u, resources.size());
1829         EXPECT_FALSE(TestAndResetAvailable());
1830
1831         // Remove the delegated layer and replace it with a new one. Use the
1832         // same frame and resources for it.
1833         delegated_->RemoveFromParent();
1834         delegated_ = CreateDelegatedLayer(frame_provider_.get());
1835         break;
1836       case 3:
1837         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1838         EXPECT_EQ(0u, resources.size());
1839         EXPECT_FALSE(TestAndResetAvailable());
1840
1841         // Use a frame with no resources in it.
1842         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1843         SetFrameData(frame.Pass());
1844         break;
1845       case 4:
1846         // We gave one frame to the frame provider, so we should get one
1847         // ref back for each resource.
1848         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1849         {
1850           unsigned expected[] = {555, 999};
1851           EXPECT_RESOURCES(expected, resources);
1852           EXPECT_TRUE(TestAndResetAvailable());
1853         }
1854         EndTest();
1855         break;
1856     }
1857   }
1858
1859   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1860                                    bool result) OVERRIDE {
1861     ReturnUnusedResourcesFromParent(host_impl);
1862   }
1863 };
1864
1865 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestTwoImplLayers);
1866
1867 class LayerTreeHostDelegatedTestTwoImplLayersTwoFrames
1868     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
1869  public:
1870   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
1871
1872   virtual void DidCommitAndDrawFrame() OVERRIDE {
1873     scoped_ptr<DelegatedFrameData> frame;
1874     ReturnedResourceArray resources;
1875
1876     int next_source_frame_number = layer_tree_host()->source_frame_number();
1877     switch (next_source_frame_number) {
1878       case 1:
1879         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1880         AddTextureQuad(frame.get(), 999);
1881         AddTransferableResource(frame.get(), 999);
1882         AddTextureQuad(frame.get(), 555);
1883         AddTransferableResource(frame.get(), 555);
1884         SetFrameData(frame.Pass());
1885         break;
1886       case 2:
1887         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1888         EXPECT_EQ(0u, resources.size());
1889         EXPECT_FALSE(TestAndResetAvailable());
1890
1891         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1892         AddTextureQuad(frame.get(), 999);
1893         AddTransferableResource(frame.get(), 999);
1894         AddTextureQuad(frame.get(), 555);
1895         AddTransferableResource(frame.get(), 555);
1896
1897         // Remove the delegated layer and replace it with a new one. Make a new
1898         // frame but with the same resources for it.
1899         delegated_->RemoveFromParent();
1900         delegated_ = NULL;
1901
1902         frame_provider_->SetFrameData(frame.Pass());
1903         delegated_ = CreateDelegatedLayer(frame_provider_.get());
1904         break;
1905       case 3:
1906         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1907         EXPECT_EQ(0u, resources.size());
1908         EXPECT_FALSE(TestAndResetAvailable());
1909
1910         // Use a frame with no resources in it.
1911         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1912         SetFrameData(frame.Pass());
1913         break;
1914       case 4:
1915         // We gave two frames to the frame provider, so we should get two
1916         // refs back for each resource.
1917         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1918         {
1919           unsigned expected[] = {555, 555, 999, 999};
1920           EXPECT_RESOURCES(expected, resources);
1921           EXPECT_TRUE(TestAndResetAvailable());
1922         }
1923         EndTest();
1924         break;
1925     }
1926   }
1927
1928   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1929                                    bool result) OVERRIDE {
1930     ReturnUnusedResourcesFromParent(host_impl);
1931   }
1932 };
1933
1934 SINGLE_AND_MULTI_THREAD_TEST_F(
1935     LayerTreeHostDelegatedTestTwoImplLayersTwoFrames);
1936
1937 class LayerTreeHostDelegatedTestTwoLayers
1938     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
1939  public:
1940   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
1941
1942   virtual void DidCommitAndDrawFrame() OVERRIDE {
1943     scoped_ptr<DelegatedFrameData> frame;
1944     ReturnedResourceArray resources;
1945
1946     int next_source_frame_number = layer_tree_host()->source_frame_number();
1947     switch (next_source_frame_number) {
1948       case 1:
1949         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
1950         AddTextureQuad(frame.get(), 999);
1951         AddTransferableResource(frame.get(), 999);
1952         AddTextureQuad(frame.get(), 555);
1953         AddTransferableResource(frame.get(), 555);
1954
1955         // Create a DelegatedRendererLayer using the frame.
1956         SetFrameData(frame.Pass());
1957         break;
1958       case 2:
1959         // Create a second DelegatedRendererLayer using the same frame provider.
1960         delegated_thief_ = CreateDelegatedLayer(frame_provider_.get());
1961         root_->AddChild(delegated_thief_);
1962
1963         // And drop our ref on the frame provider so only the layers keep it
1964         // alive.
1965         frame_provider_ = NULL;
1966         break;
1967       case 3:
1968         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1969         EXPECT_EQ(0u, resources.size());
1970         EXPECT_FALSE(TestAndResetAvailable());
1971
1972         // Remove one delegated layer from the tree. No resources should be
1973         // returned yet.
1974         delegated_->RemoveFromParent();
1975         break;
1976       case 4:
1977         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1978         EXPECT_EQ(0u, resources.size());
1979         EXPECT_FALSE(TestAndResetAvailable());
1980
1981         // Put the first layer back, and remove the other layer and destroy it.
1982         // No resources should be returned yet.
1983         root_->AddChild(delegated_);
1984         delegated_thief_->RemoveFromParent();
1985         delegated_thief_ = NULL;
1986         break;
1987       case 5:
1988         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1989         EXPECT_EQ(0u, resources.size());
1990         EXPECT_FALSE(TestAndResetAvailable());
1991
1992         // Remove the first layer from the tree again. The resources are still
1993         // held by the main thread layer.
1994         delegated_->RemoveFromParent();
1995         break;
1996       case 6:
1997         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
1998         EXPECT_EQ(0u, resources.size());
1999         EXPECT_FALSE(TestAndResetAvailable());
2000
2001         // Destroy the layer and the resources should be returned immediately.
2002         delegated_ = NULL;
2003
2004         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2005         {
2006           unsigned expected[] = {555, 999};
2007           EXPECT_RESOURCES(expected, resources);
2008           EXPECT_TRUE(TestAndResetAvailable());
2009         }
2010         EndTest();
2011         break;
2012     }
2013   }
2014
2015   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
2016                                    bool result) OVERRIDE {
2017     ReturnUnusedResourcesFromParent(host_impl);
2018   }
2019
2020   scoped_refptr<DelegatedRendererLayer> delegated_thief_;
2021 };
2022
2023 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestTwoLayers);
2024
2025 class LayerTreeHostDelegatedTestRemoveAndAddToTree
2026     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
2027  public:
2028   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
2029
2030   virtual void DidCommitAndDrawFrame() OVERRIDE {
2031     scoped_ptr<DelegatedFrameData> frame;
2032     ReturnedResourceArray resources;
2033
2034     int next_source_frame_number = layer_tree_host()->source_frame_number();
2035     switch (next_source_frame_number) {
2036       case 1:
2037         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
2038         AddTextureQuad(frame.get(), 999);
2039         AddTransferableResource(frame.get(), 999);
2040         AddTextureQuad(frame.get(), 555);
2041         AddTransferableResource(frame.get(), 555);
2042
2043         // Create a DelegatedRendererLayer using the frame.
2044         SetFrameData(frame.Pass());
2045         break;
2046       case 2:
2047         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2048         EXPECT_EQ(0u, resources.size());
2049         EXPECT_FALSE(TestAndResetAvailable());
2050
2051         // Remove the layer from the tree. The resources should not be returned
2052         // since they are still on the main thread layer.
2053         delegated_->RemoveFromParent();
2054         break;
2055       case 3:
2056         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2057         EXPECT_EQ(0u, resources.size());
2058         EXPECT_FALSE(TestAndResetAvailable());
2059
2060         // Add the layer back to the tree.
2061         layer_tree_host()->root_layer()->AddChild(delegated_);
2062         break;
2063       case 4:
2064         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2065         EXPECT_EQ(0u, resources.size());
2066         EXPECT_FALSE(TestAndResetAvailable());
2067
2068         // Set a new frame. Resources should be returned.
2069         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
2070         AddTextureQuad(frame.get(), 888);
2071         AddTransferableResource(frame.get(), 888);
2072         AddTextureQuad(frame.get(), 777);
2073         AddTransferableResource(frame.get(), 777);
2074         SetFrameData(frame.Pass());
2075         break;
2076       case 5:
2077         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2078         {
2079           unsigned expected[] = {555, 999};
2080           EXPECT_RESOURCES(expected, resources);
2081           EXPECT_TRUE(TestAndResetAvailable());
2082         }
2083
2084         // Destroy the layer.
2085         delegated_->RemoveFromParent();
2086         delegated_ = NULL;
2087         break;
2088       case 6:
2089         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2090         EXPECT_EQ(0u, resources.size());
2091         EXPECT_FALSE(TestAndResetAvailable());
2092
2093         // Destroy the frame provider. Resources should be returned.
2094         frame_provider_ = NULL;
2095
2096         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2097         {
2098           unsigned expected[] = {777, 888};
2099           EXPECT_RESOURCES(expected, resources);
2100           EXPECT_TRUE(TestAndResetAvailable());
2101         }
2102         EndTest();
2103         break;
2104     }
2105   }
2106
2107   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
2108                                    bool result) OVERRIDE {
2109     ReturnUnusedResourcesFromParent(host_impl);
2110   }
2111
2112   scoped_refptr<DelegatedRendererLayer> delegated_thief_;
2113 };
2114
2115 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostDelegatedTestRemoveAndAddToTree);
2116
2117 class LayerTreeHostDelegatedTestRemoveAndChangeResources
2118     : public LayerTreeHostDelegatedTestCaseSingleDelegatedLayer {
2119  public:
2120   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
2121
2122   virtual void DidCommitAndDrawFrame() OVERRIDE {
2123     scoped_ptr<DelegatedFrameData> frame;
2124     ReturnedResourceArray resources;
2125
2126     int next_source_frame_number = layer_tree_host()->source_frame_number();
2127     switch (next_source_frame_number) {
2128       case 1:
2129         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
2130         AddTextureQuad(frame.get(), 999);
2131         AddTransferableResource(frame.get(), 999);
2132         AddTextureQuad(frame.get(), 555);
2133         AddTransferableResource(frame.get(), 555);
2134
2135         // Create a DelegatedRendererLayer using the frame.
2136         SetFrameData(frame.Pass());
2137         break;
2138       case 2:
2139         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2140         EXPECT_EQ(0u, resources.size());
2141         EXPECT_FALSE(TestAndResetAvailable());
2142
2143         // Remove the layer from the tree. The resources should not be returned
2144         // since they are still on the main thread layer.
2145         delegated_->RemoveFromParent();
2146         break;
2147       case 3:
2148         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2149         EXPECT_EQ(0u, resources.size());
2150         EXPECT_FALSE(TestAndResetAvailable());
2151
2152         // Set a new frame. Resources should be returned immediately.
2153         frame = CreateFrameData(gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1));
2154         AddTextureQuad(frame.get(), 888);
2155         AddTransferableResource(frame.get(), 888);
2156         AddTextureQuad(frame.get(), 777);
2157         AddTransferableResource(frame.get(), 777);
2158         SetFrameData(frame.Pass());
2159
2160         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2161         {
2162           unsigned expected[] = {555, 999};
2163           EXPECT_RESOURCES(expected, resources);
2164           EXPECT_TRUE(TestAndResetAvailable());
2165           resources.clear();
2166         }
2167
2168         // Destroy the frame provider.
2169         frame_provider_ = NULL;
2170
2171         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2172         EXPECT_EQ(0u, resources.size());
2173         EXPECT_FALSE(TestAndResetAvailable());
2174
2175         // Destroy the layer. Resources should be returned.
2176         delegated_ = NULL;
2177
2178         resource_collection_->TakeUnusedResourcesForChildCompositor(&resources);
2179         {
2180           unsigned expected[] = {777, 888};
2181           EXPECT_RESOURCES(expected, resources);
2182           EXPECT_TRUE(TestAndResetAvailable());
2183         }
2184         EndTest();
2185         break;
2186     }
2187   }
2188
2189   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
2190                                    bool result) OVERRIDE {
2191     ReturnUnusedResourcesFromParent(host_impl);
2192   }
2193
2194   scoped_refptr<DelegatedRendererLayer> delegated_thief_;
2195 };
2196
2197 SINGLE_AND_MULTI_THREAD_TEST_F(
2198     LayerTreeHostDelegatedTestRemoveAndChangeResources);
2199
2200 }  // namespace
2201 }  // namespace cc