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/message_loop/message_loop_proxy.h"
   9 #include "cc/layers/solid_color_layer.h"
  10 #include "cc/layers/surface_layer.h"
  11 #include "cc/test/fake_impl_proxy.h"
  12 #include "cc/test/fake_layer_tree_host.h"
  13 #include "cc/test/fake_layer_tree_host_client.h"
  14 #include "cc/test/fake_layer_tree_host_impl.h"
  15 #include "cc/test/fake_output_surface.h"
  16 #include "cc/test/layer_tree_test.h"
  17 #include "cc/test/test_shared_bitmap_manager.h"
  18 #include "cc/trees/layer_tree_host.h"
  19 #include "testing/gmock/include/gmock/gmock.h"
  20 #include "testing/gtest/include/gtest/gtest.h"
  21
  22 namespace cc {
  23 namespace {
  24
  25 class SurfaceLayerTest : public testing::Test {
  26  public:
  27   SurfaceLayerTest()
  28       : fake_client_(
  29             FakeLayerTreeHostClient(FakeLayerTreeHostClient::DIRECT_3D)) {}
  30
  31  protected:
  32   void SetUp() override {
  33     layer_tree_host_ = FakeLayerTreeHost::Create(&fake_client_);
  34     layer_tree_host_->SetViewportSize(gfx::Size(10, 10));
  35   }
  36
  37   void TearDown() override {
  38     if (layer_tree_host_) {
  39       layer_tree_host_->SetRootLayer(nullptr);
  40       layer_tree_host_ = nullptr;
  41     }
  42   }
  43
  44   scoped_ptr<FakeLayerTreeHost> layer_tree_host_;
  45   FakeLayerTreeHostClient fake_client_;
  46   TestSharedBitmapManager shared_bitmap_manager_;
  47 };
  48
  49 void SatisfyCallback(SurfaceSequence* out, SurfaceSequence in) {
  50   *out = in;
  51 }
  52
  53 void RequireCallback(SurfaceId* out_id,
  54                      std::set<SurfaceSequence>* out,
  55                      SurfaceId in_id,
  56                      SurfaceSequence in) {
  57   *out_id = in_id;
  58   out->insert(in);
  59 }
  60
  61 // Check that one surface can be referenced by multiple LayerTreeHosts, and
  62 // each will create its own SurfaceSequence that's satisfied on destruction.
  63 TEST_F(SurfaceLayerTest, MultipleFramesOneSurface) {
  64   SurfaceSequence blank_change;  // Receives sequence if commit doesn't happen.
  65
  66   SurfaceId required_id;
  67   std::set<SurfaceSequence> required_seq;
  68   scoped_refptr<SurfaceLayer> layer(SurfaceLayer::Create(
  69       base::Bind(&SatisfyCallback, &blank_change),
  70       base::Bind(&RequireCallback, &required_id, &required_seq)));
  71   layer->SetSurfaceId(SurfaceId(1), 1.f, gfx::Size(1, 1));
  72   layer_tree_host_->set_surface_id_namespace(1);
  73   layer_tree_host_->SetRootLayer(layer);
  74
  75   scoped_ptr<FakeLayerTreeHost> layer_tree_host2 =
  76       FakeLayerTreeHost::Create(&fake_client_);
  77   scoped_refptr<SurfaceLayer> layer2(SurfaceLayer::Create(
  78       base::Bind(&SatisfyCallback, &blank_change),
  79       base::Bind(&RequireCallback, &required_id, &required_seq)));
  80   layer2->SetSurfaceId(SurfaceId(1), 1.f, gfx::Size(1, 1));
  81   layer_tree_host2->set_surface_id_namespace(2);
  82   layer_tree_host2->SetRootLayer(layer2);
  83
  84   // Layers haven't been removed, so no sequence should be satisfied.
  85   EXPECT_TRUE(blank_change.is_null());
  86
  87   SurfaceSequence expected1(1u, 1u);
  88   SurfaceSequence expected2(2u, 1u);
  89
  90   layer_tree_host2->SetRootLayer(nullptr);
  91   layer_tree_host2.reset();
  92
  93   // Layer was removed so sequence from second LayerTreeHost should be
  94   // satisfied.
  95   EXPECT_TRUE(blank_change == expected2);
  96
  97   // Set of sequences that need to be satisfied should include sequences from
  98   // both trees.
  99   EXPECT_TRUE(required_id == SurfaceId(1));
 100   EXPECT_EQ(2u, required_seq.size());
 101   EXPECT_TRUE(required_seq.count(expected1));
 102   EXPECT_TRUE(required_seq.count(expected2));
 103
 104   layer_tree_host_->SetRootLayer(nullptr);
 105   layer_tree_host_.reset();
 106
 107   // Layer was removed so sequence from first LayerTreeHost should be
 108   // satisfied.
 109   EXPECT_TRUE(blank_change == expected1);
 110
 111   // No more SurfaceSequences should have been generated that need to have be
 112   // satisfied.
 113   EXPECT_EQ(2u, required_seq.size());
 114 }
 115
 116 static void CalcDrawProps(FakeLayerTreeHost* host, float device_scale_factor) {
 117   RenderSurfaceLayerList render_surface_layer_list;
 118   LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
 119       host->root_layer(), gfx::Size(500, 500), &render_surface_layer_list);
 120   inputs.device_scale_factor = device_scale_factor;
 121   LayerTreeHostCommon::CalculateDrawProperties(&inputs);
 122 }
 123
 124 // Check that setting content scale on the surface works.
 125 TEST_F(SurfaceLayerTest, ScaleSurface) {
 126   SurfaceSequence blank_change;
 127   SurfaceId required_id;
 128   std::set<SurfaceSequence> required_seq;
 129   scoped_refptr<SurfaceLayer> layer(SurfaceLayer::Create(
 130       base::Bind(&SatisfyCallback, &blank_change),
 131       base::Bind(&RequireCallback, &required_id, &required_seq)));
 132   gfx::Size surface_size(10, 15);
 133   layer->SetSurfaceId(SurfaceId(1), 2.f, surface_size);
 134   layer->SetBounds(gfx::Size(25, 45));
 135   layer_tree_host_->SetRootLayer(layer);
 136
 137   CalcDrawProps(layer_tree_host_.get(), 5.f);
 138   EXPECT_EQ(2.f, layer->contents_scale_x());
 139   EXPECT_EQ(2.f, layer->contents_scale_y());
 140   EXPECT_EQ(surface_size.ToString(), layer->content_bounds().ToString());
 141
 142   layer_tree_host_->SetRootLayer(nullptr);
 143   layer_tree_host_.reset();
 144 }
 145
 146 // Check that SurfaceSequence is sent through swap promise.
 147 class SurfaceLayerSwapPromise : public LayerTreeTest {
 148  public:
 149   SurfaceLayerSwapPromise()
 150       : commit_count_(0), sequence_was_satisfied_(false) {}
 151
 152   void BeginTest() override {
 153     layer_tree_host()->set_surface_id_namespace(1);
 154     layer_ = SurfaceLayer::Create(
 155         base::Bind(&SatisfyCallback, &satisfied_sequence_),
 156         base::Bind(&RequireCallback, &required_id_, &required_set_));
 157     layer_->SetSurfaceId(SurfaceId(1), 1.f, gfx::Size(1, 1));
 158
 159     // Layer hasn't been added to tree so no SurfaceSequence generated yet.
 160     EXPECT_EQ(0u, required_set_.size());
 161
 162     layer_tree_host()->SetRootLayer(layer_);
 163
 164     // Should have SurfaceSequence from first tree.
 165     SurfaceSequence expected(1u, 1u);
 166     EXPECT_TRUE(required_id_ == SurfaceId(1));
 167     EXPECT_EQ(1u, required_set_.size());
 168     EXPECT_TRUE(required_set_.count(expected));
 169
 170     gfx::Size bounds(100, 100);
 171     layer_tree_host()->SetViewportSize(bounds);
 172     PostSetNeedsCommitToMainThread();
 173   }
 174
 175   void DidCommitAndDrawFrame() override {
 176     base::MessageLoopProxy::current()->PostTask(
 177         FROM_HERE, base::Bind(&SurfaceLayerSwapPromise::ChangeTree,
 178                               base::Unretained(this)));
 179   }
 180
 181   void ChangeTree() {
 182     ++commit_count_;
 183     switch (commit_count_) {
 184       case 1:
 185         // Remove SurfaceLayer from tree to cause SwapPromise to be created.
 186         blank_layer_ = SolidColorLayer::Create();
 187         blank_layer_->SetIsDrawable(true);
 188         blank_layer_->SetBounds(gfx::Size(10, 10));
 189         layer_tree_host()->SetRootLayer(blank_layer_);
 190         break;
 191       case 2:
 192         break;
 193       default:
 194         NOTREACHED();
 195         break;
 196     }
 197   }
 198
 199   void SwapBuffersOnThread(LayerTreeHostImpl* host_impl, bool result) override {
 200     EXPECT_TRUE(result);
 201     std::vector<uint32_t>& satisfied =
 202         output_surface()->last_sent_frame().metadata.satisfies_sequences;
 203     EXPECT_LE(satisfied.size(), 1u);
 204     if (satisfied.size() == 1) {
 205       // Eventually the one SurfaceSequence should be satisfied, but only
 206       // after the layer was removed from the tree, and only once.
 207       EXPECT_EQ(1u, satisfied[0]);
 208       EXPECT_LE(1, commit_count_);
 209       EXPECT_FALSE(sequence_was_satisfied_);
 210       sequence_was_satisfied_ = true;
 211       EndTest();
 212     }
 213   }
 214
 215   void AfterTest() override {
 216     EXPECT_TRUE(required_id_ == SurfaceId(1));
 217     EXPECT_EQ(1u, required_set_.size());
 218     // Sequence should have been satisfied through Swap, not with the
 219     // callback.
 220     EXPECT_TRUE(satisfied_sequence_.is_null());
 221   }
 222
 223  private:
 224   int commit_count_;
 225   bool sequence_was_satisfied_;
 226   scoped_refptr<SurfaceLayer> layer_;
 227   scoped_refptr<Layer> blank_layer_;
 228   SurfaceSequence satisfied_sequence_;
 229
 230   SurfaceId required_id_;
 231   std::set<SurfaceSequence> required_set_;
 232 };
 233
 234 // TODO(jbauman): Reenable on single thread once http://crbug.com/421923 is
 235 // fixed.
 236 MULTI_THREAD_TEST_F(SurfaceLayerSwapPromise);
 237
 238 }  // namespace
 239 }  // namespace cc