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/layers/picture_layer.h"
   9 #include "cc/test/fake_content_layer_client.h"
  10 #include "cc/test/layer_tree_test.h"
  11 #include "cc/trees/layer_tree_impl.h"
  12
  13 namespace cc {
  14 namespace {
  15
  16 #define EXPECT_OCCLUSION_EQ(expected, actual)              \
  17   EXPECT_TRUE(expected.IsEqual(actual))                    \
  18       << " Expected: " << expected.ToString() << std::endl \
  19       << " Actual: " << actual.ToString();
  20
  21 class LayerTreeHostOcclusionTest : public LayerTreeTest {
  22  protected:
  23   void InitializeSettings(LayerTreeSettings* settings) override {
  24     settings->minimum_occlusion_tracking_size = gfx::Size();
  25   }
  26 };
  27
  28 // Verify occlusion is set on the layer draw properties.
  29 class LayerTreeHostOcclusionTestDrawPropertiesOnLayer
  30     : public LayerTreeHostOcclusionTest {
  31  public:
  32   void SetupTree() override {
  33     scoped_refptr<Layer> root = Layer::Create();
  34     root->SetBounds(gfx::Size(100, 100));
  35     root->SetIsDrawable(true);
  36
  37     scoped_refptr<Layer> child = Layer::Create();
  38     child->SetBounds(gfx::Size(50, 60));
  39     child->SetPosition(gfx::PointF(10.f, 5.5f));
  40     child->SetContentsOpaque(true);
  41     child->SetIsDrawable(true);
  42     root->AddChild(child);
  43
  44     layer_tree_host()->SetRootLayer(root);
  45     LayerTreeTest::SetupTree();
  46   }
  47
  48   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
  49
  50   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
  51     LayerImpl* root = impl->active_tree()->root_layer();
  52     LayerImpl* child = root->children()[0];
  53
  54     // Verify the draw properties are valid.
  55     EXPECT_TRUE(root->IsDrawnRenderSurfaceLayerListMember());
  56     EXPECT_TRUE(child->IsDrawnRenderSurfaceLayerListMember());
  57
  58     EXPECT_OCCLUSION_EQ(
  59         Occlusion(child->draw_transform(), SimpleEnclosedRegion(),
  60                   SimpleEnclosedRegion()),
  61         child->draw_properties().occlusion_in_content_space);
  62     EXPECT_OCCLUSION_EQ(
  63         Occlusion(root->draw_transform(), SimpleEnclosedRegion(),
  64                   SimpleEnclosedRegion(gfx::Rect(10, 6, 50, 59))),
  65         root->draw_properties().occlusion_in_content_space);
  66     EndTest();
  67   }
  68
  69   void AfterTest() override {}
  70 };
  71
  72 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestDrawPropertiesOnLayer);
  73
  74 // Verify occlusion is set on the render surfaces.
  75 class LayerTreeHostOcclusionTestDrawPropertiesOnSurface
  76     : public LayerTreeHostOcclusionTest {
  77  public:
  78   void SetupTree() override {
  79     scoped_refptr<Layer> root = Layer::Create();
  80     root->SetBounds(gfx::Size(100, 100));
  81     root->SetIsDrawable(true);
  82
  83     scoped_refptr<Layer> child = Layer::Create();
  84     child->SetBounds(gfx::Size(1, 1));
  85     child->SetPosition(gfx::PointF(10.f, 5.5f));
  86     child->SetIsDrawable(true);
  87     child->SetForceRenderSurface(true);
  88     root->AddChild(child);
  89
  90     scoped_refptr<Layer> child2 = Layer::Create();
  91     child2->SetBounds(gfx::Size(10, 12));
  92     child2->SetPosition(gfx::PointF(13.f, 8.5f));
  93     child2->SetContentsOpaque(true);
  94     child2->SetIsDrawable(true);
  95     root->AddChild(child2);
  96
  97     layer_tree_host()->SetRootLayer(root);
  98     LayerTreeTest::SetupTree();
  99   }
 100
 101   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 102
 103   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
 104     LayerImpl* root = impl->active_tree()->root_layer();
 105     LayerImpl* child = root->children()[0];
 106     RenderSurfaceImpl* surface = child->render_surface();
 107
 108     // Verify the draw properties are valid.
 109     EXPECT_TRUE(root->IsDrawnRenderSurfaceLayerListMember());
 110     EXPECT_TRUE(child->IsDrawnRenderSurfaceLayerListMember());
 111     EXPECT_EQ(child, child->render_target());
 112
 113     EXPECT_OCCLUSION_EQ(
 114         Occlusion(surface->draw_transform(), SimpleEnclosedRegion(),
 115                   SimpleEnclosedRegion(gfx::Rect(13, 9, 10, 11))),
 116         surface->occlusion_in_content_space());
 117     EndTest();
 118   }
 119
 120   void AfterTest() override {}
 121 };
 122
 123 SINGLE_AND_MULTI_THREAD_TEST_F(
 124     LayerTreeHostOcclusionTestDrawPropertiesOnSurface);
 125
 126 // Verify occlusion is set on mask layers.
 127 class LayerTreeHostOcclusionTestDrawPropertiesOnMask
 128     : public LayerTreeHostOcclusionTest {
 129  public:
 130   void SetupTree() override {
 131     scoped_refptr<Layer> root = Layer::Create();
 132     root->SetBounds(gfx::Size(100, 100));
 133     root->SetIsDrawable(true);
 134
 135     scoped_refptr<Layer> child = Layer::Create();
 136     child->SetBounds(gfx::Size(30, 40));
 137     child->SetPosition(gfx::PointF(10.f, 5.5f));
 138     child->SetIsDrawable(true);
 139     root->AddChild(child);
 140
 141     scoped_refptr<Layer> make_surface_bigger = Layer::Create();
 142     make_surface_bigger->SetBounds(gfx::Size(100, 100));
 143     make_surface_bigger->SetPosition(gfx::PointF(-10.f, -15.f));
 144     make_surface_bigger->SetIsDrawable(true);
 145     child->AddChild(make_surface_bigger);
 146
 147     scoped_refptr<Layer> mask = PictureLayer::Create(&client_);
 148     mask->SetBounds(gfx::Size(30, 40));
 149     mask->SetIsDrawable(true);
 150     child->SetMaskLayer(mask.get());
 151
 152     scoped_refptr<Layer> child2 = Layer::Create();
 153     child2->SetBounds(gfx::Size(10, 12));
 154     child2->SetPosition(gfx::PointF(13.f, 8.5f));
 155     child2->SetContentsOpaque(true);
 156     child2->SetIsDrawable(true);
 157     root->AddChild(child2);
 158
 159     layer_tree_host()->SetRootLayer(root);
 160     LayerTreeTest::SetupTree();
 161   }
 162
 163   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 164
 165   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
 166     LayerImpl* root = impl->active_tree()->root_layer();
 167     LayerImpl* child = root->children()[0];
 168     RenderSurfaceImpl* surface = child->render_surface();
 169     LayerImpl* mask = child->mask_layer();
 170
 171     // Verify the draw properties are valid.
 172     EXPECT_TRUE(root->IsDrawnRenderSurfaceLayerListMember());
 173     EXPECT_TRUE(child->IsDrawnRenderSurfaceLayerListMember());
 174     EXPECT_EQ(child, child->render_target());
 175
 176     gfx::Transform transform = surface->draw_transform();
 177     transform.PreconcatTransform(child->draw_transform());
 178
 179     EXPECT_OCCLUSION_EQ(
 180         Occlusion(transform, SimpleEnclosedRegion(),
 181                   SimpleEnclosedRegion(gfx::Rect(13, 9, 10, 11))),
 182         mask->draw_properties().occlusion_in_content_space);
 183     EndTest();
 184   }
 185
 186   void AfterTest() override {}
 187
 188   FakeContentLayerClient client_;
 189 };
 190
 191 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestDrawPropertiesOnMask);
 192
 193 // Verify occlusion is set to empty inside the subtree of a replica. This is
 194 // done because the tile system does not know about replicas, and so would not
 195 // know that something is unoccluded on the replica even though it's occluded on
 196 // the original.
 197 class LayerTreeHostOcclusionTestDrawPropertiesInsideReplica
 198     : public LayerTreeHostOcclusionTest {
 199  public:
 200   void SetupTree() override {
 201     scoped_refptr<Layer> root = Layer::Create();
 202     root->SetBounds(gfx::Size(100, 100));
 203     root->SetIsDrawable(true);
 204
 205     scoped_refptr<Layer> child = Layer::Create();
 206     child->SetBounds(gfx::Size(1, 1));
 207     child->SetPosition(gfx::PointF(10.f, 5.5f));
 208     child->SetIsDrawable(true);
 209     child->SetForceRenderSurface(true);
 210     root->AddChild(child);
 211
 212     scoped_refptr<Layer> replica = Layer::Create();
 213     gfx::Transform translate;
 214     translate.Translate(20.f, 4.f);
 215     replica->SetTransform(translate);
 216     child->SetReplicaLayer(replica.get());
 217
 218     scoped_refptr<Layer> mask = PictureLayer::Create(&client_);
 219     mask->SetBounds(gfx::Size(30, 40));
 220     mask->SetIsDrawable(true);
 221     child->SetMaskLayer(mask.get());
 222
 223     scoped_refptr<Layer> child2 = Layer::Create();
 224     child2->SetBounds(gfx::Size(10, 12));
 225     child2->SetPosition(gfx::PointF(13.f, 8.5f));
 226     child2->SetContentsOpaque(true);
 227     child2->SetIsDrawable(true);
 228     root->AddChild(child2);
 229
 230     layer_tree_host()->SetRootLayer(root);
 231     LayerTreeTest::SetupTree();
 232   }
 233
 234   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 235
 236   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
 237     LayerImpl* root = impl->active_tree()->root_layer();
 238     LayerImpl* child = root->children()[0];
 239     RenderSurfaceImpl* surface = child->render_surface();
 240     LayerImpl* mask = child->mask_layer();
 241
 242     // Verify the draw properties are valid.
 243     EXPECT_TRUE(root->IsDrawnRenderSurfaceLayerListMember());
 244     EXPECT_TRUE(child->IsDrawnRenderSurfaceLayerListMember());
 245     EXPECT_EQ(child, child->render_target());
 246
 247     // No occlusion from on child, which is part of the replica.
 248     EXPECT_OCCLUSION_EQ(Occlusion(),
 249                         child->draw_properties().occlusion_in_content_space);
 250     // Occlusion on the surface is okay.
 251     EXPECT_OCCLUSION_EQ(
 252         Occlusion(surface->draw_transform(), SimpleEnclosedRegion(),
 253                   SimpleEnclosedRegion(gfx::Rect(13, 9, 10, 11))),
 254         surface->occlusion_in_content_space());
 255     // No occlusion on the replica'd mask.
 256     EXPECT_OCCLUSION_EQ(Occlusion(),
 257                         mask->draw_properties().occlusion_in_content_space);
 258     EndTest();
 259   }
 260
 261   void AfterTest() override {}
 262
 263   FakeContentLayerClient client_;
 264 };
 265
 266 SINGLE_AND_MULTI_THREAD_TEST_F(
 267     LayerTreeHostOcclusionTestDrawPropertiesInsideReplica);
 268
 269 }  // namespace
 270 }  // namespace cc