cc/trees/layer_tree_host_unittest_occlusion.cc

   1 // Copyright 2012 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 "cc/layers/layer.h"
   8 #include "cc/test/layer_tree_test.h"
   9 #include "cc/test/occlusion_tracker_test_common.h"
  10
  11 namespace cc {
  12 namespace {
  13
  14 class TestLayer : public Layer {
  15  public:
  16   static scoped_refptr<TestLayer> Create() {
  17     return make_scoped_refptr(new TestLayer());
  18   }
  19
  20   virtual void Update(
  21       ResourceUpdateQueue* update_queue,
  22       const OcclusionTracker* occlusion,
  23       RenderingStats* stats) OVERRIDE {
  24     if (!occlusion)
  25       return;
  26
  27     // Gain access to internals of the OcclusionTracker.
  28     const TestOcclusionTracker* test_occlusion =
  29         static_cast<const TestOcclusionTracker*>(occlusion);
  30     occlusion_ = UnionRegions(
  31         test_occlusion->occlusion_from_inside_target(),
  32         test_occlusion->occlusion_from_outside_target());
  33   }
  34
  35   const Region& occlusion() const { return occlusion_; }
  36   const Region& expected_occlusion() const { return expected_occlusion_; }
  37   void set_expected_occlusion(const Region& occlusion) {
  38     expected_occlusion_ = occlusion;
  39   }
  40
  41  private:
  42   TestLayer() : Layer() {
  43     SetIsDrawable(true);
  44   }
  45   virtual ~TestLayer() {}
  46
  47   Region occlusion_;
  48   Region expected_occlusion_;
  49 };
  50
  51 class LayerTreeHostOcclusionTest : public LayerTreeTest {
  52  public:
  53   LayerTreeHostOcclusionTest()
  54       : root_(TestLayer::Create()),
  55         child_(TestLayer::Create()),
  56         child2_(TestLayer::Create()),
  57         grand_child_(TestLayer::Create()),
  58         mask_(TestLayer::Create()) {
  59   }
  60
  61   virtual void BeginTest() OVERRIDE {
  62     PostSetNeedsCommitToMainThread();
  63   }
  64
  65   virtual void DidCommit() OVERRIDE {
  66     TestLayer* root = static_cast<TestLayer*>(layer_tree_host()->root_layer());
  67     VerifyOcclusion(root);
  68
  69     EndTest();
  70   }
  71
  72   virtual void AfterTest() OVERRIDE {}
  73
  74   void VerifyOcclusion(TestLayer* layer) const {
  75     EXPECT_EQ(layer->expected_occlusion().ToString(),
  76               layer->occlusion().ToString());
  77
  78     for (size_t i = 0; i < layer->children().size(); ++i) {
  79       TestLayer* child = static_cast<TestLayer*>(layer->children()[i].get());
  80       VerifyOcclusion(child);
  81     }
  82   }
  83
  84   void SetLayerPropertiesForTesting(TestLayer* layer,
  85                                     TestLayer* parent,
  86                                     const gfx::Transform& transform,
  87                                     gfx::PointF position,
  88                                     gfx::Size bounds,
  89                                     bool opaque) const {
  90     layer->RemoveAllChildren();
  91     if (parent)
  92       parent->AddChild(layer);
  93     layer->SetTransform(transform);
  94     layer->SetPosition(position);
  95     layer->SetBounds(bounds);
  96     layer->SetContentsOpaque(opaque);
  97
  98     layer->SetAnchorPoint(gfx::PointF());
  99   }
 100
 101  protected:
 102   scoped_refptr<TestLayer> root_;
 103   scoped_refptr<TestLayer> child_;
 104   scoped_refptr<TestLayer> child2_;
 105   scoped_refptr<TestLayer> grand_child_;
 106   scoped_refptr<TestLayer> mask_;
 107
 108   gfx::Transform identity_matrix_;
 109 };
 110
 111
 112 class LayerTreeHostOcclusionTestOcclusionSurfaceClipping
 113     : public LayerTreeHostOcclusionTest {
 114  public:
 115   virtual void SetupTree() OVERRIDE {
 116     // The child layer is a surface and the grand_child is opaque, but clipped
 117     // to the child and root
 118     SetLayerPropertiesForTesting(
 119         root_.get(), NULL, identity_matrix_,
 120         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
 121     SetLayerPropertiesForTesting(
 122         child_.get(), root_.get(), identity_matrix_,
 123         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), false);
 124     SetLayerPropertiesForTesting(
 125         grand_child_.get(), child_.get(), identity_matrix_,
 126         gfx::PointF(-10.f, -10.f), gfx::Size(20, 500), true);
 127
 128     child_->SetMasksToBounds(true);
 129     child_->SetForceRenderSurface(true);
 130
 131     child_->set_expected_occlusion(gfx::Rect(0, 0, 10, 190));
 132     root_->set_expected_occlusion(gfx::Rect(10, 10, 10, 190));
 133
 134     layer_tree_host()->SetRootLayer(root_);
 135     LayerTreeTest::SetupTree();
 136   }
 137 };
 138
 139 SINGLE_AND_MULTI_THREAD_TEST_F(
 140     LayerTreeHostOcclusionTestOcclusionSurfaceClipping);
 141
 142 class LayerTreeHostOcclusionTestOcclusionSurfaceClippingOpaque
 143     : public LayerTreeHostOcclusionTest {
 144  public:
 145   virtual void SetupTree() OVERRIDE {
 146     // If the child layer is opaque, then it adds to the occlusion seen by the
 147     // root_.
 148     SetLayerPropertiesForTesting(
 149         root_.get(), NULL, identity_matrix_,
 150         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
 151     SetLayerPropertiesForTesting(
 152         child_.get(), root_.get(), identity_matrix_,
 153         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
 154     SetLayerPropertiesForTesting(
 155         grand_child_.get(), child_.get(), identity_matrix_,
 156         gfx::PointF(-10.f, -10.f), gfx::Size(20, 500), true);
 157
 158     child_->SetMasksToBounds(true);
 159     child_->SetForceRenderSurface(true);
 160
 161     child_->set_expected_occlusion(gfx::Rect(0, 0, 10, 190));
 162     root_->set_expected_occlusion(gfx::Rect(10, 10, 190, 190));
 163
 164     layer_tree_host()->SetRootLayer(root_);
 165     LayerTreeTest::SetupTree();
 166   }
 167 };
 168
 169 SINGLE_AND_MULTI_THREAD_TEST_F(
 170     LayerTreeHostOcclusionTestOcclusionSurfaceClippingOpaque);
 171
 172 class LayerTreeHostOcclusionTestOcclusionTwoChildren
 173     : public LayerTreeHostOcclusionTest {
 174  public:
 175   virtual void SetupTree() OVERRIDE {
 176     // Add a second child to the root layer and the regions should merge
 177     SetLayerPropertiesForTesting(
 178         root_.get(), NULL, identity_matrix_,
 179         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
 180     SetLayerPropertiesForTesting(
 181         child_.get(), root_.get(), identity_matrix_,
 182         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), false);
 183     SetLayerPropertiesForTesting(
 184         grand_child_.get(), child_.get(), identity_matrix_,
 185         gfx::PointF(-10.f, -10.f), gfx::Size(20, 500), true);
 186     SetLayerPropertiesForTesting(
 187         child2_.get(), root_.get(), identity_matrix_,
 188         gfx::PointF(20.f, 10.f), gfx::Size(10, 500), true);
 189
 190     child_->SetMasksToBounds(true);
 191     child_->SetForceRenderSurface(true);
 192
 193     grand_child_->set_expected_occlusion(gfx::Rect(10, 0, 10, 190));
 194     child_->set_expected_occlusion(gfx::Rect(0, 0, 20, 190));
 195     root_->set_expected_occlusion(gfx::Rect(10, 10, 20, 190));
 196
 197     layer_tree_host()->SetRootLayer(root_);
 198     LayerTreeTest::SetupTree();
 199   }
 200 };
 201
 202 SINGLE_AND_MULTI_THREAD_TEST_F(
 203     LayerTreeHostOcclusionTestOcclusionTwoChildren);
 204
 205 class LayerTreeHostOcclusionTestOcclusionMask
 206     : public LayerTreeHostOcclusionTest {
 207  public:
 208   virtual void SetupTree() OVERRIDE {
 209     // If the child layer has a mask on it, then it shouldn't contribute to
 210     // occlusion on stuff below it.
 211     SetLayerPropertiesForTesting(
 212         root_.get(), NULL, identity_matrix_,
 213         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
 214     SetLayerPropertiesForTesting(
 215         child2_.get(), root_.get(), identity_matrix_,
 216         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
 217     SetLayerPropertiesForTesting(
 218         child_.get(), root_.get(), identity_matrix_,
 219         gfx::PointF(20.f, 20.f), gfx::Size(500, 500), true);
 220     SetLayerPropertiesForTesting(
 221         grand_child_.get(), child_.get(), identity_matrix_,
 222         gfx::PointF(-10.f, -10.f), gfx::Size(500, 500), true);
 223
 224     child_->SetMasksToBounds(true);
 225     child_->SetForceRenderSurface(true);
 226     child_->SetMaskLayer(mask_.get());
 227
 228     child_->set_expected_occlusion(gfx::Rect(0, 0, 180, 180));
 229     root_->set_expected_occlusion(gfx::Rect(10, 10, 190, 190));
 230
 231     layer_tree_host()->SetRootLayer(root_);
 232     LayerTreeTest::SetupTree();
 233   }
 234 };
 235
 236 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestOcclusionMask);
 237
 238 class LayerTreeHostOcclusionTestOcclusionMaskBelowOcclusion
 239     : public LayerTreeHostOcclusionTest {
 240  public:
 241   virtual void SetupTree() OVERRIDE {
 242     // If the child layer with a mask is below child2, then child2 should
 243     // contribute to occlusion on everything, and child shouldn't contribute
 244     // to the root_.
 245     SetLayerPropertiesForTesting(
 246         root_.get(), NULL, identity_matrix_,
 247         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
 248     SetLayerPropertiesForTesting(
 249         child_.get(), root_.get(), identity_matrix_,
 250         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
 251     SetLayerPropertiesForTesting(
 252         grand_child_.get(), child_.get(), identity_matrix_,
 253         gfx::PointF(-10.f, -10.f), gfx::Size(20, 500), true);
 254     SetLayerPropertiesForTesting(
 255         child2_.get(), root_.get(), identity_matrix_,
 256         gfx::PointF(20.f, 10.f), gfx::Size(10, 500), true);
 257
 258     child_->SetMasksToBounds(true);
 259     child_->SetForceRenderSurface(true);
 260     child_->SetMaskLayer(mask_.get());
 261
 262     grand_child_->set_expected_occlusion(gfx::Rect(10, 0, 10, 190));
 263     child_->set_expected_occlusion(gfx::Rect(0, 0, 20, 190));
 264     root_->set_expected_occlusion(gfx::Rect(20, 10, 10, 190));
 265
 266     layer_tree_host()->SetRootLayer(root_);
 267     LayerTreeTest::SetupTree();
 268   }
 269 };
 270
 271 SINGLE_AND_MULTI_THREAD_TEST_F(
 272     LayerTreeHostOcclusionTestOcclusionMaskBelowOcclusion);
 273
 274 class LayerTreeHostOcclusionTestOcclusionOpacity
 275     : public LayerTreeHostOcclusionTest {
 276  public:
 277   virtual void SetupTree() OVERRIDE {
 278     // If the child layer has a non-opaque opacity, then it shouldn't
 279     // contribute to occlusion on stuff below it
 280     SetLayerPropertiesForTesting(
 281         root_.get(), NULL, identity_matrix_,
 282         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
 283     SetLayerPropertiesForTesting(
 284         child2_.get(), root_.get(), identity_matrix_,
 285         gfx::PointF(20.f, 10.f), gfx::Size(10, 500), true);
 286     SetLayerPropertiesForTesting(
 287         child_.get(), root_.get(), identity_matrix_,
 288         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
 289     SetLayerPropertiesForTesting(
 290         grand_child_.get(), child_.get(), identity_matrix_,
 291         gfx::PointF(-10.f, -10.f), gfx::Size(20, 500), true);
 292
 293     child_->SetMasksToBounds(true);
 294     child_->SetForceRenderSurface(true);
 295     child_->SetOpacity(0.5f);
 296
 297     child_->set_expected_occlusion(gfx::Rect(0, 0, 10, 190));
 298     root_->set_expected_occlusion(gfx::Rect(20, 10, 10, 190));
 299
 300     layer_tree_host()->SetRootLayer(root_);
 301     LayerTreeTest::SetupTree();
 302   }
 303 };
 304
 305 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestOcclusionOpacity);
 306
 307 class LayerTreeHostOcclusionTestOcclusionOpacityBelowOcclusion
 308     : public LayerTreeHostOcclusionTest {
 309  public:
 310   virtual void SetupTree() OVERRIDE {
 311     // If the child layer with non-opaque opacity is below child2, then
 312     // child2 should contribute to occlusion on everything, and child shouldn't
 313     // contribute to the root_.
 314     SetLayerPropertiesForTesting(
 315         root_.get(), NULL, identity_matrix_,
 316         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
 317     SetLayerPropertiesForTesting(
 318         child_.get(), root_.get(), identity_matrix_,
 319         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
 320     SetLayerPropertiesForTesting(
 321         grand_child_.get(), child_.get(), identity_matrix_,
 322         gfx::PointF(-10.f, -10.f), gfx::Size(20, 500), true);
 323     SetLayerPropertiesForTesting(
 324         child2_.get(), root_.get(), identity_matrix_,
 325         gfx::PointF(20.f, 10.f), gfx::Size(10, 500), true);
 326
 327     child_->SetMasksToBounds(true);
 328     child_->SetForceRenderSurface(true);
 329     child_->SetOpacity(0.5f);
 330
 331     grand_child_->set_expected_occlusion(gfx::Rect(10, 0, 10, 190));
 332     child_->set_expected_occlusion(gfx::Rect(0, 0, 20, 190));
 333     root_->set_expected_occlusion(gfx::Rect(20, 10, 10, 190));
 334
 335     layer_tree_host()->SetRootLayer(root_);
 336     LayerTreeTest::SetupTree();
 337   }
 338 };
 339
 340 SINGLE_AND_MULTI_THREAD_TEST_F(
 341     LayerTreeHostOcclusionTestOcclusionOpacityBelowOcclusion);
 342
 343 class LayerTreeHostOcclusionTestOcclusionOpacityFilter
 344     : public LayerTreeHostOcclusionTest {
 345  public:
 346   virtual void SetupTree() OVERRIDE {
 347     gfx::Transform child_transform;
 348     child_transform.Translate(250.0, 250.0);
 349     child_transform.Rotate(90.0);
 350     child_transform.Translate(-250.0, -250.0);
 351
 352     WebKit::WebFilterOperations filters;
 353     filters.append(WebKit::WebFilterOperation::createOpacityFilter(0.5));
 354
 355     // If the child layer has a filter that changes alpha values, and is below
 356     // child2, then child2 should contribute to occlusion on everything,
 357     // and child shouldn't contribute to the root
 358     SetLayerPropertiesForTesting(
 359         root_.get(), NULL, identity_matrix_,
 360         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
 361     SetLayerPropertiesForTesting(
 362         child_.get(), root_.get(), child_transform,
 363         gfx::PointF(30.f, 30.f), gfx::Size(500, 500), true);
 364     SetLayerPropertiesForTesting(
 365         grand_child_.get(), child_.get(), identity_matrix_,
 366         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
 367     SetLayerPropertiesForTesting(
 368         child2_.get(), root_.get(), identity_matrix_,
 369         gfx::PointF(10.f, 70.f), gfx::Size(500, 500), true);
 370
 371     child_->SetMasksToBounds(true);
 372     child_->SetFilters(filters);
 373
 374     grand_child_->set_expected_occlusion(gfx::Rect(40, 330, 130, 190));
 375     child_->set_expected_occlusion(UnionRegions(
 376         gfx::Rect(10, 330, 160, 170), gfx::Rect(40, 500, 130, 20)));
 377     root_->set_expected_occlusion(gfx::Rect(10, 70, 190, 130));
 378
 379     layer_tree_host()->SetRootLayer(root_);
 380     LayerTreeTest::SetupTree();
 381   }
 382 };
 383
 384 SINGLE_AND_MULTI_THREAD_TEST_F(
 385     LayerTreeHostOcclusionTestOcclusionOpacityFilter);
 386
 387 class LayerTreeHostOcclusionTestOcclusionBlurFilter
 388     : public LayerTreeHostOcclusionTest {
 389  public:
 390   virtual void SetupTree() OVERRIDE {
 391     gfx::Transform child_transform;
 392     child_transform.Translate(250.0, 250.0);
 393     child_transform.Rotate(90.0);
 394     child_transform.Translate(-250.0, -250.0);
 395
 396     WebKit::WebFilterOperations filters;
 397     filters.append(WebKit::WebFilterOperation::createBlurFilter(10));
 398
 399     // If the child layer has a filter that moves pixels/changes alpha, and is
 400     // below child2, then child should not inherit occlusion from outside its
 401     // subtree, and should not contribute to the root
 402     SetLayerPropertiesForTesting(
 403         root_.get(), NULL, identity_matrix_,
 404         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
 405     SetLayerPropertiesForTesting(
 406         child_.get(), root_.get(), child_transform,
 407         gfx::PointF(30.f, 30.f), gfx::Size(500, 500), true);
 408     SetLayerPropertiesForTesting(
 409         grand_child_.get(), child_.get(), identity_matrix_,
 410         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
 411     SetLayerPropertiesForTesting(
 412         child2_.get(), root_.get(), identity_matrix_,
 413         gfx::PointF(10.f, 70.f), gfx::Size(500, 500), true);
 414
 415     child_->SetMasksToBounds(true);
 416     child_->SetFilters(filters);
 417
 418     child_->set_expected_occlusion(gfx::Rect(10, 330, 160, 170));
 419     root_->set_expected_occlusion(gfx::Rect(10, 70, 190, 130));
 420
 421     layer_tree_host()->SetRootLayer(root_);
 422     LayerTreeTest::SetupTree();
 423   }
 424 };
 425
 426 SINGLE_AND_MULTI_THREAD_TEST_F(
 427     LayerTreeHostOcclusionTestOcclusionBlurFilter);
 428
 429 class LayerTreeHostOcclusionTestManySurfaces
 430     : public LayerTreeHostOcclusionTest {
 431  public:
 432   virtual void SetupTree() OVERRIDE {
 433     // We create enough RenderSurfaces that it will trigger Vector reallocation
 434     // while computing occlusion.
 435     std::vector<scoped_refptr<TestLayer> > layers;
 436     int num_surfaces = 200;
 437     int root_width = 400;
 438     int root_height = 400;
 439
 440     for (int i = 0; i < num_surfaces; ++i) {
 441       layers.push_back(TestLayer::Create());
 442       if (!i) {
 443         SetLayerPropertiesForTesting(
 444             layers.back().get(), NULL, identity_matrix_,
 445             gfx::PointF(0.f, 0.f),
 446             gfx::Size(root_width, root_height), true);
 447         layers.back()->CreateRenderSurface();
 448       } else {
 449         SetLayerPropertiesForTesting(
 450             layers.back().get(), layers[layers.size() - 2].get(),
 451             identity_matrix_,
 452             gfx::PointF(1.f, 1.f),
 453             gfx::Size(root_width-i, root_height-i), true);
 454         layers.back()->SetForceRenderSurface(true);
 455       }
 456     }
 457
 458     for (int i = 1; i < num_surfaces; ++i) {
 459       scoped_refptr<TestLayer> child = TestLayer::Create();
 460       SetLayerPropertiesForTesting(
 461           child.get(), layers[i].get(), identity_matrix_,
 462           gfx::PointF(0.f, 0.f), gfx::Size(root_width, root_height), false);
 463     }
 464
 465     for (int i = 0; i < num_surfaces-1; ++i) {
 466       gfx::Rect expected_occlusion(1, 1, root_width-i-1, root_height-i-1);
 467       layers[i]->set_expected_occlusion(expected_occlusion);
 468     }
 469
 470     layer_tree_host()->SetRootLayer(layers[0]);
 471     LayerTreeTest::SetupTree();
 472   }
 473 };
 474
 475 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestManySurfaces);
 476
 477 }  // namespace
 478 }  // namespace cc