cc/trees/layer_tree_host_unittest_video.cc

   1 // Copyright 2012 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 "cc/trees/layer_tree_host.h"
   6
   7 #include "base/basictypes.h"
   8 #include "cc/layers/render_surface_impl.h"
   9 #include "cc/layers/video_layer.h"
  10 #include "cc/layers/video_layer_impl.h"
  11 #include "cc/test/fake_video_frame_provider.h"
  12 #include "cc/test/layer_tree_test.h"
  13 #include "cc/trees/damage_tracker.h"
  14 #include "cc/trees/layer_tree_impl.h"
  15
  16 namespace cc {
  17 namespace {
  18
  19 // These tests deal with compositing video.
  20 class LayerTreeHostVideoTest : public LayerTreeTest {};
  21
  22 class LayerTreeHostVideoTestSetNeedsDisplay
  23     : public LayerTreeHostVideoTest {
  24  public:
  25   virtual void SetupTree() OVERRIDE {
  26     scoped_refptr<Layer> root = Layer::Create();
  27     root->SetBounds(gfx::Size(10, 10));
  28     root->SetIsDrawable(true);
  29
  30     scoped_refptr<VideoLayer> video = VideoLayer::Create(
  31         &video_frame_provider_);
  32     video->SetPosition(gfx::PointF(3.f, 3.f));
  33     video->SetBounds(gfx::Size(4, 4));
  34     video->SetIsDrawable(true);
  35     root->AddChild(video);
  36
  37     layer_tree_host()->SetRootLayer(root);
  38     layer_tree_host()->SetDeviceScaleFactor(2.f);
  39     LayerTreeHostVideoTest::SetupTree();
  40   }
  41
  42   virtual void BeginTest() OVERRIDE {
  43     num_draws_ = 0;
  44     PostSetNeedsCommitToMainThread();
  45   }
  46
  47   virtual DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
  48                                            LayerTreeHostImpl::FrameData* frame,
  49                                            DrawResult draw_result) OVERRIDE {
  50     LayerImpl* root_layer = host_impl->active_tree()->root_layer();
  51     RenderSurfaceImpl* root_surface = root_layer->render_surface();
  52     gfx::RectF damage_rect =
  53         root_surface->damage_tracker()->current_damage_rect();
  54
  55     switch (num_draws_) {
  56       case 0:
  57         // First frame the whole viewport is damaged.
  58         EXPECT_EQ(gfx::RectF(0.f, 0.f, 20.f, 20.f).ToString(),
  59                   damage_rect.ToString());
  60         break;
  61       case 1:
  62         // Second frame the video layer is damaged.
  63         EXPECT_EQ(gfx::RectF(6.f, 6.f, 8.f, 8.f).ToString(),
  64                   damage_rect.ToString());
  65         EndTest();
  66         break;
  67     }
  68
  69     EXPECT_EQ(DRAW_SUCCESS, draw_result);
  70     return draw_result;
  71   }
  72
  73   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
  74     VideoLayerImpl* video = static_cast<VideoLayerImpl*>(
  75         host_impl->active_tree()->root_layer()->children()[0]);
  76
  77     if (num_draws_ == 0)
  78       video->SetNeedsRedraw();
  79
  80     ++num_draws_;
  81   }
  82
  83   virtual void AfterTest() OVERRIDE {
  84     EXPECT_EQ(2, num_draws_);
  85   }
  86
  87  private:
  88   int num_draws_;
  89
  90   FakeVideoFrameProvider video_frame_provider_;
  91 };
  92
  93 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostVideoTestSetNeedsDisplay);
  94
  95 }  // namespace
  96 }  // namespace cc