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