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(int frame_id) override {}
  58   void BeginMainFrame(const BeginFrameArgs& args) override {}
  59   void DidBeginMainFrame() override {}
  60   void Layout() override {}
  61   void ApplyViewportDeltas(const gfx::Vector2d& inner_delta,
  62                            const gfx::Vector2d& outer_delta,
  63                            const gfx::Vector2dF& elastic_overscroll_delta,
  64                            float page_scale,
  65                            float top_controls_delta) override {}
  66   void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
  67                            float page_scale,
  68                            float top_controls_delta) override {}
  69   void RequestNewOutputSurface() override {
  70     layer_tree_host_->SetOutputSurface(
  71         make_scoped_ptr<OutputSurface>(new NoMessageLoopOutputSurface));
  72   }
  73   void DidInitializeOutputSurface() override {
  74     did_initialize_output_surface_ = true;
  75   }
  76   void DidFailToInitializeOutputSurface() override {}
  77   void WillCommit() override {}
  78   void DidCommit() override { did_commit_ = true; }
  79   void DidCommitAndDrawFrame() override { did_commit_and_draw_frame_ = true; }
  80   void DidCompleteSwapBuffers() override {}
  81
  82   // LayerTreeHostSingleThreadClient overrides.
  83   void DidPostSwapBuffers() override {}
  84   void DidAbortSwapBuffers() override {}
  85
  86   void RunTest() {
  87     no_loop_thread_.Start();
  88     no_loop_thread_.Join();
  89   }
  90
  91   // base::DelegateSimpleThread::Delegate override.
  92   void Run() override {
  93     ASSERT_FALSE(base::MessageLoopProxy::current().get());
  94     RunTestWithoutMessageLoop();
  95     EXPECT_FALSE(base::MessageLoopProxy::current().get());
  96   }
  97
  98  protected:
  99   virtual void RunTestWithoutMessageLoop() = 0;
 100
 101   void SetupLayerTreeHost() {
 102     LayerTreeSettings settings;
 103     settings.single_thread_proxy_scheduler = false;
 104     settings.verify_property_trees = true;
 105     layer_tree_host_ = LayerTreeHost::CreateSingleThreaded(
 106         this, this, nullptr, nullptr, settings, nullptr, nullptr);
 107     layer_tree_host_->SetViewportSize(size_);
 108     layer_tree_host_->SetRootLayer(root_layer_);
 109   }
 110
 111   void Composite() {
 112     did_commit_ = false;
 113     did_commit_and_draw_frame_ = false;
 114     layer_tree_host_->Composite(gfx::FrameTime::Now());
 115     EXPECT_TRUE(did_initialize_output_surface_);
 116     EXPECT_TRUE(did_commit_);
 117     EXPECT_TRUE(did_commit_and_draw_frame_);
 118   }
 119
 120   void TearDownLayerTreeHost() {
 121     // Explicit teardown to make failures easier to debug.
 122     layer_tree_host_ = nullptr;
 123     root_layer_ = nullptr;
 124   }
 125
 126   // All protected member variables are accessed only on |no_loop_thread_|.
 127   scoped_ptr<LayerTreeHost> layer_tree_host_;
 128   scoped_refptr<Layer> root_layer_;
 129
 130   bool did_initialize_output_surface_;
 131   bool did_commit_;
 132   bool did_commit_and_draw_frame_;
 133   gfx::Size size_;
 134
 135  private:
 136   base::DelegateSimpleThread no_loop_thread_;
 137 };
 138
 139 class LayerTreeHostNoMessageLoopSmokeTest
 140     : public LayerTreeHostNoMessageLoopTest {
 141  protected:
 142   void RunTestWithoutMessageLoop() override {
 143     gfx::Size size(100, 100);
 144
 145     // Set up root layer.
 146     {
 147       scoped_refptr<SolidColorLayer> solid_color_layer =
 148           SolidColorLayer::Create();
 149       solid_color_layer->SetBackgroundColor(SK_ColorRED);
 150       solid_color_layer->SetBounds(size_);
 151       solid_color_layer->SetIsDrawable(true);
 152       root_layer_ = solid_color_layer;
 153     }
 154
 155     SetupLayerTreeHost();
 156     Composite();
 157     TearDownLayerTreeHost();
 158   }
 159 };
 160
 161 TEST_F(LayerTreeHostNoMessageLoopSmokeTest, SmokeTest) {
 162   RunTest();
 163 }
 164
 165 class LayerTreeHostNoMessageLoopDelegatedLayer
 166     : public LayerTreeHostNoMessageLoopTest,
 167       public DelegatedFrameResourceCollectionClient {
 168  protected:
 169   void RunTestWithoutMessageLoop() override {
 170     resource_collection_ = new DelegatedFrameResourceCollection;
 171     frame_provider_ = new DelegatedFrameProvider(
 172         resource_collection_.get(), CreateFrameDataWithResource(998));
 173
 174     root_layer_ = Layer::Create();
 175     delegated_layer_ =
 176         FakeDelegatedRendererLayer::Create(frame_provider_.get());
 177     delegated_layer_->SetBounds(size_);
 178     delegated_layer_->SetIsDrawable(true);
 179     root_layer_->AddChild(delegated_layer_);
 180
 181     SetupLayerTreeHost();
 182
 183     // Draw first frame.
 184     Composite();
 185
 186     // Prepare and draw second frame.
 187     frame_provider_->SetFrameData(CreateFrameDataWithResource(999));
 188     Composite();
 189
 190     // Resource from first frame should be returned.
 191     CheckReturnedResource(1u);
 192
 193     TearDownLayerTreeHost();
 194     delegated_layer_ = NULL;
 195     frame_provider_ = NULL;
 196
 197     // Resource from second frame should be returned.
 198     CheckReturnedResource(1u);
 199     resource_collection_ = NULL;
 200   }
 201
 202   // DelegatedFrameResourceCollectionClient overrides.
 203   void UnusedResourcesAreAvailable() override {}
 204
 205  private:
 206   scoped_ptr<DelegatedFrameData> CreateFrameDataWithResource(
 207       ResourceProvider::ResourceId resource_id) {
 208     scoped_ptr<DelegatedFrameData> frame(new DelegatedFrameData);
 209     gfx::Rect frame_rect(size_);
 210
 211     scoped_ptr<RenderPass> root_pass(RenderPass::Create());
 212     root_pass->SetNew(
 213         RenderPassId(1, 1), frame_rect, frame_rect, gfx::Transform());
 214     frame->render_pass_list.push_back(root_pass.Pass());
 215
 216     TransferableResource resource;
 217     resource.id = resource_id;
 218     resource.mailbox_holder.texture_target = GL_TEXTURE_2D;
 219     resource.mailbox_holder.mailbox = gpu::Mailbox::Generate();
 220     frame->resource_list.push_back(resource);
 221
 222     return frame.Pass();
 223   }
 224
 225   void CheckReturnedResource(size_t expected_num) {
 226     ReturnedResourceArray returned_resources;
 227     resource_collection_->TakeUnusedResourcesForChildCompositor(
 228         &returned_resources);
 229     EXPECT_EQ(expected_num, returned_resources.size());
 230   }
 231
 232   scoped_refptr<DelegatedFrameResourceCollection> resource_collection_;
 233   scoped_refptr<DelegatedFrameProvider> frame_provider_;
 234   scoped_refptr<DelegatedRendererLayer> delegated_layer_;
 235 };
 236
 237 TEST_F(LayerTreeHostNoMessageLoopDelegatedLayer, SingleDelegatedLayer) {
 238   RunTest();
 239 }
 240
 241 }  // namespace
 242 }  // namespace cc