cc/trees/occlusion_tracker_perftest.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 "cc/trees/occlusion_tracker.h"
   6
   7 #include "base/thread_task_runner_handle.h"
   8 #include "base/time/time.h"
   9 #include "cc/debug/lap_timer.h"
  10 #include "cc/layers/layer_iterator.h"
  11 #include "cc/layers/solid_color_layer_impl.h"
  12 #include "cc/test/fake_layer_tree_host_impl_client.h"
  13 #include "cc/test/fake_output_surface.h"
  14 #include "cc/test/fake_proxy.h"
  15 #include "cc/test/fake_rendering_stats_instrumentation.h"
  16 #include "cc/test/test_shared_bitmap_manager.h"
  17 #include "cc/test/test_task_graph_runner.h"
  18 #include "cc/trees/layer_tree_host_impl.h"
  19 #include "cc/trees/layer_tree_impl.h"
  20 #include "cc/trees/single_thread_proxy.h"
  21 #include "testing/gtest/include/gtest/gtest.h"
  22 #include "testing/perf/perf_test.h"
  23
  24 namespace cc {
  25 namespace {
  26
  27 static const int kTimeLimitMillis = 2000;
  28 static const int kWarmupRuns = 5;
  29 static const int kTimeCheckInterval = 10;
  30
  31 class OcclusionTrackerPerfTest : public testing::Test {
  32  public:
  33   OcclusionTrackerPerfTest()
  34       : timer_(kWarmupRuns,
  35                base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
  36                kTimeCheckInterval),
  37         proxy_(base::ThreadTaskRunnerHandle::Get(), nullptr),
  38         impl_(&proxy_),
  39         output_surface_(FakeOutputSurface::Create3d()) {}
  40   void CreateHost() {
  41     LayerTreeSettings settings;
  42     host_impl_ = LayerTreeHostImpl::Create(settings, &client_, &proxy_, &stats_,
  43                                            &shared_bitmap_manager_, nullptr,
  44                                            &task_graph_runner_, 1);
  45     host_impl_->InitializeRenderer(output_surface_.get());
  46
  47     scoped_ptr<LayerImpl> root_layer = LayerImpl::Create(active_tree(), 1);
  48     root_layer->SetHasRenderSurface(true);
  49     active_tree()->SetRootLayer(root_layer.Pass());
  50   }
  51
  52   LayerTreeImpl* active_tree() { return host_impl_->active_tree(); }
  53
  54   void SetTestName(const std::string& name) { test_name_ = name; }
  55
  56   void PrintResults() {
  57     CHECK(!test_name_.empty()) << "Must SetTestName() before AfterTest().";
  58     perf_test::PrintResult("occlusion_tracker_time",
  59                            "",
  60                            test_name_,
  61                            1000 * timer_.MsPerLap(),
  62                            "us",
  63                            true);
  64   }
  65
  66  protected:
  67   LapTimer timer_;
  68   std::string test_name_;
  69   FakeLayerTreeHostImplClient client_;
  70   FakeProxy proxy_;
  71   DebugScopedSetImplThread impl_;
  72   FakeRenderingStatsInstrumentation stats_;
  73   TestSharedBitmapManager shared_bitmap_manager_;
  74   TestTaskGraphRunner task_graph_runner_;
  75   scoped_ptr<OutputSurface> output_surface_;
  76   scoped_ptr<LayerTreeHostImpl> host_impl_;
  77 };
  78
  79 TEST_F(OcclusionTrackerPerfTest, UnoccludedContentRect_FullyOccluded) {
  80   SetTestName("unoccluded_content_rect_fully_occluded");
  81
  82   gfx::Rect viewport_rect(768, 1038);
  83   OcclusionTracker tracker(viewport_rect);
  84
  85   CreateHost();
  86   host_impl_->SetViewportSize(viewport_rect.size());
  87
  88   scoped_ptr<SolidColorLayerImpl> opaque_layer =
  89       SolidColorLayerImpl::Create(active_tree(), 2);
  90   opaque_layer->SetBackgroundColor(SK_ColorRED);
  91   opaque_layer->SetContentsOpaque(true);
  92   opaque_layer->SetDrawsContent(true);
  93   opaque_layer->SetBounds(viewport_rect.size());
  94   active_tree()->root_layer()->AddChild(opaque_layer.Pass());
  95
  96   bool update_lcd_text = false;
  97   active_tree()->UpdateDrawProperties(update_lcd_text);
  98   const LayerImplList& rsll = active_tree()->RenderSurfaceLayerList();
  99   ASSERT_EQ(1u, rsll.size());
 100   EXPECT_EQ(1u, rsll[0]->render_surface()->layer_list().size());
 101
 102   LayerIterator begin = LayerIterator::Begin(&rsll);
 103   LayerIterator end = LayerIterator::End(&rsll);
 104
 105   LayerIteratorPosition pos = begin;
 106
 107   // The opaque_layer adds occlusion over the whole viewport.
 108   tracker.EnterLayer(pos);
 109   tracker.LeaveLayer(pos);
 110
 111   gfx::Transform transform_to_target;
 112   transform_to_target.Translate(0, 96);
 113
 114   do {
 115     Occlusion occlusion =
 116         tracker.GetCurrentOcclusionForLayer(transform_to_target);
 117     for (int x = 0; x < viewport_rect.width(); x += 256) {
 118       for (int y = 0; y < viewport_rect.height(); y += 256) {
 119         gfx::Rect query_content_rect(x, y, 256, 256);
 120         gfx::Rect unoccluded =
 121             occlusion.GetUnoccludedContentRect(query_content_rect);
 122         // Sanity test that we're not hitting early outs.
 123         bool expect_empty =
 124             query_content_rect.right() <= viewport_rect.width() &&
 125             query_content_rect.bottom() + 96 <= viewport_rect.height();
 126         CHECK_EQ(expect_empty, unoccluded.IsEmpty())
 127             << query_content_rect.ToString();
 128       }
 129     }
 130
 131     timer_.NextLap();
 132   } while (!timer_.HasTimeLimitExpired());
 133
 134   ++begin;
 135   LayerIteratorPosition next = begin;
 136   EXPECT_EQ(active_tree()->root_layer(), next.current_layer);
 137
 138   ++begin;
 139   EXPECT_EQ(end, begin);
 140
 141   PrintResults();
 142 }
 143
 144 TEST_F(OcclusionTrackerPerfTest, UnoccludedContentRect_10OpaqueLayers) {
 145   static const int kNumOpaqueLayers = 10;
 146   SetTestName("unoccluded_content_rect_10_opaque_layers");
 147
 148   gfx::Rect viewport_rect(768, 1038);
 149   OcclusionTracker tracker(viewport_rect);
 150
 151   CreateHost();
 152   host_impl_->SetViewportSize(viewport_rect.size());
 153
 154   for (int i = 0; i < kNumOpaqueLayers; ++i) {
 155     scoped_ptr<SolidColorLayerImpl> opaque_layer =
 156         SolidColorLayerImpl::Create(active_tree(), 2 + i);
 157     opaque_layer->SetBackgroundColor(SK_ColorRED);
 158     opaque_layer->SetContentsOpaque(true);
 159     opaque_layer->SetDrawsContent(true);
 160     opaque_layer->SetBounds(
 161         gfx::Size(viewport_rect.width() / 2, viewport_rect.height() / 2));
 162     opaque_layer->SetPosition(gfx::Point(i, i));
 163     active_tree()->root_layer()->AddChild(opaque_layer.Pass());
 164   }
 165
 166   bool update_lcd_text = false;
 167   active_tree()->UpdateDrawProperties(update_lcd_text);
 168   const LayerImplList& rsll = active_tree()->RenderSurfaceLayerList();
 169   ASSERT_EQ(1u, rsll.size());
 170   EXPECT_EQ(static_cast<size_t>(kNumOpaqueLayers),
 171             rsll[0]->render_surface()->layer_list().size());
 172
 173   LayerIterator begin = LayerIterator::Begin(&rsll);
 174   LayerIterator end = LayerIterator::End(&rsll);
 175
 176   // The opaque_layers add occlusion.
 177   for (int i = 0; i < kNumOpaqueLayers - 1; ++i) {
 178     LayerIteratorPosition pos = begin;
 179     tracker.EnterLayer(pos);
 180     tracker.LeaveLayer(pos);
 181     ++begin;
 182   }
 183   LayerIteratorPosition pos = begin;
 184   tracker.EnterLayer(pos);
 185   tracker.LeaveLayer(pos);
 186
 187   gfx::Transform transform_to_target;
 188   transform_to_target.Translate(0, 96);
 189
 190   do {
 191     Occlusion occlusion =
 192         tracker.GetCurrentOcclusionForLayer(transform_to_target);
 193     for (int x = 0; x < viewport_rect.width(); x += 256) {
 194       for (int y = 0; y < viewport_rect.height(); y += 256) {
 195         gfx::Rect query_content_rect(x, y, 256, 256);
 196         gfx::Rect unoccluded =
 197             occlusion.GetUnoccludedContentRect(query_content_rect);
 198       }
 199     }
 200
 201     timer_.NextLap();
 202   } while (!timer_.HasTimeLimitExpired());
 203
 204   ++begin;
 205   LayerIteratorPosition next = begin;
 206   EXPECT_EQ(active_tree()->root_layer(), next.current_layer);
 207
 208   ++begin;
 209   EXPECT_EQ(end, begin);
 210
 211   PrintResults();
 212 }
 213
 214 }  // namespace
 215 }  // namespace cc