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