cc/trees/layer_tree_host_unittest_no_message_loop.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 "base/threading/simple_thread.h"
   7 #include "cc/layers/delegated_frame_provider.h"
   8 #include "cc/layers/delegated_frame_resource_collection.h"
   9 #include "cc/layers/delegated_renderer_layer.h"
  10 #include "cc/layers/layer.h"
  11 #include "cc/layers/solid_color_layer.h"
  12 #include "cc/output/delegated_frame_data.h"
  13 #include "cc/output/output_surface.h"
  14 #include "cc/output/output_surface_client.h"
  15 #include "cc/resources/resource_provider.h"
  16 #include "cc/scheduler/begin_frame_source.h"
  17 #include "cc/test/fake_delegated_renderer_layer.h"
  18 #include "cc/test/test_context_provider.h"
  19 #include "cc/trees/layer_tree_host.h"
  20 #include "cc/trees/layer_tree_host_client.h"
  21 #include "cc/trees/layer_tree_host_single_thread_client.h"
  22 #include "testing/gtest/include/gtest/gtest.h"
  23 #include "third_party/skia/include/core/SkColor.h"
  24 #include "ui/gfx/frame_time.h"
  25
  26 namespace cc {
  27 namespace {
  28
  29 class NoMessageLoopOutputSurface : public OutputSurface {
  30  public:
  31   NoMessageLoopOutputSurface() : OutputSurface(TestContextProvider::Create()) {}
  32   ~NoMessageLoopOutputSurface() override {}
  33
  34   // OutputSurface overrides.
  35   void SwapBuffers(CompositorFrame* frame) override {
  36     DCHECK(client_);
  37     client_->DidSwapBuffers();
  38     client_->DidSwapBuffersComplete();
  39   }
  40 };
  41
  42 class LayerTreeHostNoMessageLoopTest
  43     : public testing::Test,
  44       public base::DelegateSimpleThread::Delegate,
  45       public LayerTreeHostClient,
  46       public LayerTreeHostSingleThreadClient {
  47  public:
  48   LayerTreeHostNoMessageLoopTest()
  49       : did_initialize_output_surface_(false),
  50         did_commit_(false),
  51         did_commit_and_draw_frame_(false),
  52         size_(100, 100),
  53         no_loop_thread_(this, "LayerTreeHostNoMessageLoopTest") {}
  54   ~LayerTreeHostNoMessageLoopTest() override {}
  55
  56   // LayerTreeHostClient overrides.
  57   void WillBeginMainFrame() override {}
  58   void BeginMainFrame(const BeginFrameArgs& args) override {}
  59   void BeginMainFrameNotExpectedSoon() override {}
  60   void DidBeginMainFrame() override {}
  61   void Layout() override {}
  62   void ApplyViewportDeltas(const gfx::Vector2dF& inner_delta,
  63                            const gfx::Vector2dF& outer_delta,
  64                            const gfx::Vector2dF& elastic_overscroll_delta,
  65                            float page_scale,
  66                            float top_controls_delta) override {}
  67   void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
  68                            float page_scale,
  69                            float top_controls_delta) override {}
  70   void RequestNewOutputSurface() override {
  71     layer_tree_host_->SetOutputSurface(
  72         make_scoped_ptr<OutputSurface>(new NoMessageLoopOutputSurface));
  73   }
  74   void DidInitializeOutputSurface() override {
  75     did_initialize_output_surface_ = true;
  76   }
  77   void DidFailToInitializeOutputSurface() override {}
  78   void WillCommit() override {}
  79   void DidCommit() override { did_commit_ = true; }
  80   void DidCommitAndDrawFrame() override { did_commit_and_draw_frame_ = true; }
  81   void DidCompleteSwapBuffers() override {}
  82   void DidCompletePageScaleAnimation() override {}
  83
  84   // LayerTreeHostSingleThreadClient overrides.
  85   void DidPostSwapBuffers() override {}
  86   void DidAbortSwapBuffers() override {}
  87
  88   void RunTest() {
  89     no_loop_thread_.Start();
  90     no_loop_thread_.Join();
  91   }
  92
  93   // base::DelegateSimpleThread::Delegate override.
  94   void Run() override {
  95     ASSERT_FALSE(base::MessageLoopProxy::current().get());
  96     RunTestWithoutMessageLoop();
  97     EXPECT_FALSE(base::MessageLoopProxy::current().get());
  98   }
  99
 100  protected:
 101   virtual void RunTestWithoutMessageLoop() = 0;
 102
 103   void SetupLayerTreeHost() {
 104     LayerTreeSettings settings;
 105     settings.single_thread_proxy_scheduler = false;
 106     settings.verify_property_trees = true;
 107     layer_tree_host_ = LayerTreeHost::CreateSingleThreaded(
 108         this, this, nullptr, nullptr, settings, nullptr, nullptr);
 109     layer_tree_host_->SetViewportSize(size_);
 110     layer_tree_host_->SetRootLayer(root_layer_);
 111   }
 112
 113   void Composite() {
 114     did_commit_ = false;
 115     did_commit_and_draw_frame_ = false;
 116     layer_tree_host_->Composite(gfx::FrameTime::Now());
 117     EXPECT_TRUE(did_initialize_output_surface_);
 118     EXPECT_TRUE(did_commit_);
 119     EXPECT_TRUE(did_commit_and_draw_frame_);
 120   }
 121
 122   void TearDownLayerTreeHost() {
 123     // Explicit teardown to make failures easier to debug.
 124     layer_tree_host_ = nullptr;
 125     root_layer_ = nullptr;
 126   }
 127
 128   // All protected member variables are accessed only on |no_loop_thread_|.
 129   scoped_ptr<LayerTreeHost> layer_tree_host_;
 130   scoped_refptr<Layer> root_layer_;
 131
 132   bool did_initialize_output_surface_;
 133   bool did_commit_;
 134   bool did_commit_and_draw_frame_;
 135   gfx::Size size_;
 136
 137  private:
 138   base::DelegateSimpleThread no_loop_thread_;
 139 };
 140
 141 class LayerTreeHostNoMessageLoopSmokeTest
 142     : public LayerTreeHostNoMessageLoopTest {
 143  protected:
 144   void RunTestWithoutMessageLoop() override {
 145     gfx::Size size(100, 100);
 146
 147     // Set up root layer.
 148     {
 149       scoped_refptr<SolidColorLayer> solid_color_layer =
 150           SolidColorLayer::Create();
 151       solid_color_layer->SetBackgroundColor(SK_ColorRED);
 152       solid_color_layer->SetBounds(size_);
 153       solid_color_layer->SetIsDrawable(true);
 154       root_layer_ = solid_color_layer;
 155     }
 156
 157     SetupLayerTreeHost();
 158     Composite();
 159     TearDownLayerTreeHost();
 160   }
 161 };
 162
 163 TEST_F(LayerTreeHostNoMessageLoopSmokeTest, SmokeTest) {
 164   RunTest();
 165 }
 166
 167 class LayerTreeHostNoMessageLoopDelegatedLayer
 168     : public LayerTreeHostNoMessageLoopTest,
 169       public DelegatedFrameResourceCollectionClient {
 170  protected:
 171   void RunTestWithoutMessageLoop() override {
 172     resource_collection_ = new DelegatedFrameResourceCollection;
 173     frame_provider_ = new DelegatedFrameProvider(
 174         resource_collection_.get(), CreateFrameDataWithResource(998));
 175
 176     root_layer_ = Layer::Create();
 177     delegated_layer_ =
 178         FakeDelegatedRendererLayer::Create(frame_provider_.get());
 179     delegated_layer_->SetBounds(size_);
 180     delegated_layer_->SetIsDrawable(true);
 181     root_layer_->AddChild(delegated_layer_);
 182
 183     SetupLayerTreeHost();
 184
 185     // Draw first frame.
 186     Composite();
 187
 188     // Prepare and draw second frame.
 189     frame_provider_->SetFrameData(CreateFrameDataWithResource(999));
 190     Composite();
 191
 192     // Resource from first frame should be returned.
 193     CheckReturnedResource(1u);
 194
 195     TearDownLayerTreeHost();
 196     delegated_layer_ = NULL;
 197     frame_provider_ = NULL;
 198
 199     // Resource from second frame should be returned.
 200     CheckReturnedResource(1u);
 201     resource_collection_ = NULL;
 202   }
 203
 204   // DelegatedFrameResourceCollectionClient overrides.
 205   void UnusedResourcesAreAvailable() override {}
 206
 207  private:
 208   scoped_ptr<DelegatedFrameData> CreateFrameDataWithResource(
 209       ResourceProvider::ResourceId resource_id) {
 210     scoped_ptr<DelegatedFrameData> frame(new DelegatedFrameData);
 211     gfx::Rect frame_rect(size_);
 212
 213     scoped_ptr<RenderPass> root_pass(RenderPass::Create());
 214     root_pass->SetNew(
 215         RenderPassId(1, 1), frame_rect, frame_rect, gfx::Transform());
 216     frame->render_pass_list.push_back(root_pass.Pass());
 217
 218     TransferableResource resource;
 219     resource.id = resource_id;
 220     resource.mailbox_holder.texture_target = GL_TEXTURE_2D;
 221     resource.mailbox_holder.mailbox = gpu::Mailbox::Generate();
 222     frame->resource_list.push_back(resource);
 223
 224     return frame.Pass();
 225   }
 226
 227   void CheckReturnedResource(size_t expected_num) {
 228     ReturnedResourceArray returned_resources;
 229     resource_collection_->TakeUnusedResourcesForChildCompositor(
 230         &returned_resources);
 231     EXPECT_EQ(expected_num, returned_resources.size());
 232   }
 233
 234   scoped_refptr<DelegatedFrameResourceCollection> resource_collection_;
 235   scoped_refptr<DelegatedFrameProvider> frame_provider_;
 236   scoped_refptr<DelegatedRendererLayer> delegated_layer_;
 237 };
 238
 239 TEST_F(LayerTreeHostNoMessageLoopDelegatedLayer, SingleDelegatedLayer) {
 240   RunTest();
 241 }
 242
 243 }  // namespace
 244 }  // namespace cc