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