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