src/cc/layers/surface_layer_unittest.cc

   1 // Copyright 2014 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 "base/message_loop/message_loop_proxy.h"
   6 #include "cc/layers/solid_color_layer.h"
   7 #include "cc/layers/surface_layer.h"
   8 #include "cc/test/fake_impl_proxy.h"
   9 #include "cc/test/fake_layer_tree_host.h"
  10 #include "cc/test/fake_layer_tree_host_client.h"
  11 #include "cc/test/fake_layer_tree_host_impl.h"
  12 #include "cc/test/fake_output_surface.h"
  13 #include "cc/test/layer_tree_test.h"
  14 #include "cc/test/test_shared_bitmap_manager.h"
  15 #include "cc/trees/layer_tree_host.h"
  16 #include "testing/gmock/include/gmock/gmock.h"
  17 #include "testing/gtest/include/gtest/gtest.h"
  18
  19 namespace cc {
  20 namespace {
  21
  22 class SurfaceLayerTest : public testing::Test {
  23  public:
  24   SurfaceLayerTest()
  25       : fake_client_(
  26             FakeLayerTreeHostClient(FakeLayerTreeHostClient::DIRECT_3D)) {}
  27
  28  protected:
  29   virtual void SetUp() {
  30     layer_tree_host_ = FakeLayerTreeHost::Create(&fake_client_);
  31     layer_tree_host_->SetViewportSize(gfx::Size(10, 10));
  32   }
  33
  34   virtual void TearDown() {
  35     if (layer_tree_host_) {
  36       layer_tree_host_->SetRootLayer(nullptr);
  37       layer_tree_host_ = nullptr;
  38     }
  39   }
  40
  41   scoped_ptr<FakeLayerTreeHost> layer_tree_host_;
  42   FakeLayerTreeHostClient fake_client_;
  43   TestSharedBitmapManager shared_bitmap_manager_;
  44 };
  45
  46 void SatisfyCallback(SurfaceSequence* out, SurfaceSequence in) {
  47   *out = in;
  48 }
  49
  50 void RequireCallback(SurfaceId* out_id,
  51                      std::set<SurfaceSequence>* out,
  52                      SurfaceId in_id,
  53                      SurfaceSequence in) {
  54   *out_id = in_id;
  55   out->insert(in);
  56 }
  57
  58 // Check that one surface can be referenced by multiple LayerTreeHosts, and
  59 // each will create its own SurfaceSequence that's satisfied on destruction.
  60 TEST_F(SurfaceLayerTest, MultipleFramesOneSurface) {
  61   SurfaceSequence blank_change;  // Receives sequence if commit doesn't happen.
  62
  63   SurfaceId required_id;
  64   std::set<SurfaceSequence> required_seq;
  65   scoped_refptr<SurfaceLayer> layer(SurfaceLayer::Create(
  66       base::Bind(&SatisfyCallback, &blank_change),
  67       base::Bind(&RequireCallback, &required_id, &required_seq)));
  68   layer->SetSurfaceId(SurfaceId(1), gfx::Size(1, 1));
  69   layer_tree_host_->set_surface_id_namespace(1);
  70   layer_tree_host_->SetRootLayer(layer);
  71
  72   scoped_ptr<FakeLayerTreeHost> layer_tree_host2 =
  73       FakeLayerTreeHost::Create(&fake_client_);
  74   scoped_refptr<SurfaceLayer> layer2(SurfaceLayer::Create(
  75       base::Bind(&SatisfyCallback, &blank_change),
  76       base::Bind(&RequireCallback, &required_id, &required_seq)));
  77   layer2->SetSurfaceId(SurfaceId(1), gfx::Size(1, 1));
  78   layer_tree_host2->set_surface_id_namespace(2);
  79   layer_tree_host2->SetRootLayer(layer2);
  80
  81   // Layers haven't been removed, so no sequence should be satisfied.
  82   EXPECT_TRUE(blank_change.is_null());
  83
  84   SurfaceSequence expected1(1u, 1u);
  85   SurfaceSequence expected2(2u, 1u);
  86
  87   layer_tree_host2->SetRootLayer(nullptr);
  88   layer_tree_host2.reset();
  89
  90   // Layer was removed so sequence from second LayerTreeHost should be
  91   // satisfied.
  92   EXPECT_TRUE(blank_change == expected2);
  93
  94   // Set of sequences that need to be satisfied should include sequences from
  95   // both trees.
  96   EXPECT_TRUE(required_id == SurfaceId(1));
  97   EXPECT_EQ(2u, required_seq.size());
  98   EXPECT_TRUE(required_seq.count(expected1));
  99   EXPECT_TRUE(required_seq.count(expected2));
 100
 101   layer_tree_host_->SetRootLayer(nullptr);
 102   layer_tree_host_.reset();
 103
 104   // Layer was removed so sequence from first LayerTreeHost should be
 105   // satisfied.
 106   EXPECT_TRUE(blank_change == expected1);
 107
 108   // No more SurfaceSequences should have been generated that need to have be
 109   // satisfied.
 110   EXPECT_EQ(2u, required_seq.size());
 111 }
 112
 113 // Check that setting content scale on the surface works.
 114 TEST_F(SurfaceLayerTest, ScaleSurface) {
 115   SurfaceSequence blank_change;
 116   SurfaceId required_id;
 117   std::set<SurfaceSequence> required_seq;
 118   scoped_refptr<SurfaceLayer> layer(SurfaceLayer::Create(
 119       base::Bind(&SatisfyCallback, &blank_change),
 120       base::Bind(&RequireCallback, &required_id, &required_seq)));
 121   gfx::Size surface_size(10, 15);
 122   layer->SetSurfaceId(SurfaceId(1), surface_size);
 123   layer->SetBounds(gfx::Size(25, 45));
 124
 125   float scale_x;
 126   float scale_y;
 127   gfx::Size bounds;
 128   layer->CalculateContentsScale(2.f, &scale_x, &scale_y, &bounds);
 129   EXPECT_EQ(10.f / 25.f, scale_x);
 130   EXPECT_EQ(15.f / 45.f, scale_y);
 131   EXPECT_EQ(surface_size.ToString(), bounds.ToString());
 132
 133   layer->SetBounds(gfx::Size(0, 0));
 134   layer->CalculateContentsScale(2.f, &scale_x, &scale_y, &bounds);
 135   EXPECT_EQ(1.f, scale_x);
 136   EXPECT_EQ(1.f, scale_y);
 137   EXPECT_EQ(surface_size.ToString(), bounds.ToString());
 138 }
 139
 140 // Check that SurfaceSequence is sent through swap promise.
 141 class SurfaceLayerSwapPromise : public LayerTreeTest {
 142  public:
 143   SurfaceLayerSwapPromise()
 144       : commit_count_(0), sequence_was_satisfied_(false) {}
 145
 146   void BeginTest() override {
 147     layer_tree_host()->set_surface_id_namespace(1);
 148     layer_ = SurfaceLayer::Create(
 149         base::Bind(&SatisfyCallback, &satisfied_sequence_),
 150         base::Bind(&RequireCallback, &required_id_, &required_set_));
 151     layer_->SetSurfaceId(SurfaceId(1), gfx::Size(1, 1));
 152
 153     // Layer hasn't been added to tree so no SurfaceSequence generated yet.
 154     EXPECT_EQ(0u, required_set_.size());
 155
 156     layer_tree_host()->SetRootLayer(layer_);
 157
 158     // Should have SurfaceSequence from first tree.
 159     SurfaceSequence expected(1u, 1u);
 160     EXPECT_TRUE(required_id_ == SurfaceId(1));
 161     EXPECT_EQ(1u, required_set_.size());
 162     EXPECT_TRUE(required_set_.count(expected));
 163
 164     gfx::Size bounds(100, 100);
 165     layer_tree_host()->SetViewportSize(bounds);
 166     PostSetNeedsCommitToMainThread();
 167   }
 168
 169   void DidCommit() override {
 170     base::MessageLoopProxy::current()->PostTask(
 171         FROM_HERE, base::Bind(&SurfaceLayerSwapPromise::ChangeTree,
 172                               base::Unretained(this)));
 173   }
 174
 175   void ChangeTree() {
 176     ++commit_count_;
 177     switch (commit_count_) {
 178       case 1:
 179         // Remove SurfaceLayer from tree to cause SwapPromise to be created.
 180         blank_layer_ = SolidColorLayer::Create();
 181         blank_layer_->SetIsDrawable(true);
 182         blank_layer_->SetBounds(gfx::Size(10, 10));
 183         layer_tree_host()->SetRootLayer(blank_layer_);
 184         break;
 185       case 2:
 186         break;
 187       default:
 188         NOTREACHED();
 189         break;
 190     }
 191   }
 192
 193   void SwapBuffersOnThread(LayerTreeHostImpl* host_impl, bool result) override {
 194     EXPECT_TRUE(result);
 195     std::vector<uint32_t>& satisfied =
 196         output_surface()->last_sent_frame().metadata.satisfies_sequences;
 197     EXPECT_LE(satisfied.size(), 1u);
 198     if (satisfied.size() == 1) {
 199       // Eventually the one SurfaceSequence should be satisfied, but only
 200       // after the layer was removed from the tree, and only once.
 201       EXPECT_EQ(1u, satisfied[0]);
 202       EXPECT_LE(1, commit_count_);
 203       EXPECT_FALSE(sequence_was_satisfied_);
 204       sequence_was_satisfied_ = true;
 205       EndTest();
 206     }
 207   }
 208
 209   void AfterTest() override {
 210     EXPECT_TRUE(required_id_ == SurfaceId(1));
 211     EXPECT_EQ(1u, required_set_.size());
 212     // Sequence should have been satisfied through Swap, not with the
 213     // callback.
 214     EXPECT_TRUE(satisfied_sequence_.is_null());
 215   }
 216
 217  private:
 218   int commit_count_;
 219   bool sequence_was_satisfied_;
 220   scoped_refptr<SurfaceLayer> layer_;
 221   scoped_refptr<Layer> blank_layer_;
 222   SurfaceSequence satisfied_sequence_;
 223
 224   SurfaceId required_id_;
 225   std::set<SurfaceSequence> required_set_;
 226 };
 227
 228 // TODO(jbauman): Reenable on single thread once http://crbug.com/421923 is
 229 // fixed.
 230 MULTI_THREAD_TEST_F(SurfaceLayerSwapPromise);
 231
 232 }  // namespace
 233 }  // namespace cc