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   void CreateHost() {
  40     LayerTreeSettings settings;
  41     host_impl_ = LayerTreeHostImpl::Create(settings, &client_, &proxy_, &stats_,
  42                                            &shared_bitmap_manager_, nullptr,
  43                                            &task_graph_runner_, 1);
  44     host_impl_->InitializeRenderer(FakeOutputSurface::Create3d());
  45
  46     scoped_ptr<LayerImpl> root_layer = LayerImpl::Create(active_tree(), 1);
  47     root_layer->SetHasRenderSurface(true);
  48     active_tree()->SetRootLayer(root_layer.Pass());
  49   }
  50
  51   LayerTreeImpl* active_tree() { return host_impl_->active_tree(); }
  52
  53   void SetTestName(const std::string& name) { test_name_ = name; }
  54
  55   void PrintResults() {
  56     CHECK(!test_name_.empty()) << "Must SetTestName() before AfterTest().";
  57     perf_test::PrintResult("occlusion_tracker_time",
  58                            "",
  59                            test_name_,
  60                            1000 * timer_.MsPerLap(),
  61                            "us",
  62                            true);
  63   }
  64
  65  protected:
  66   LapTimer timer_;
  67   std::string test_name_;
  68   FakeLayerTreeHostImplClient client_;
  69   FakeProxy proxy_;
  70   DebugScopedSetImplThread impl_;
  71   FakeRenderingStatsInstrumentation stats_;
  72   TestSharedBitmapManager shared_bitmap_manager_;
  73   TestTaskGraphRunner task_graph_runner_;
  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 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   active_tree()->root_layer()->AddChild(opaque_layer.Pass());
  93
  94   bool update_lcd_text = false;
  95   active_tree()->UpdateDrawProperties(update_lcd_text);
  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 begin = LayerIterator::Begin(&rsll);
 101   LayerIterator end = LayerIterator::End(&rsll);
 102
 103   LayerIteratorPosition 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 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 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->SetPosition(gfx::Point(i, i));
 161     active_tree()->root_layer()->AddChild(opaque_layer.Pass());
 162   }
 163
 164   bool update_lcd_text = false;
 165   active_tree()->UpdateDrawProperties(update_lcd_text);
 166   const LayerImplList& rsll = active_tree()->RenderSurfaceLayerList();
 167   ASSERT_EQ(1u, rsll.size());
 168   EXPECT_EQ(static_cast<size_t>(kNumOpaqueLayers),
 169             rsll[0]->render_surface()->layer_list().size());
 170
 171   LayerIterator begin = LayerIterator::Begin(&rsll);
 172   LayerIterator end = LayerIterator::End(&rsll);
 173
 174   // The opaque_layers add occlusion.
 175   for (int i = 0; i < kNumOpaqueLayers - 1; ++i) {
 176     LayerIteratorPosition pos = begin;
 177     tracker.EnterLayer(pos);
 178     tracker.LeaveLayer(pos);
 179     ++begin;
 180   }
 181   LayerIteratorPosition pos = begin;
 182   tracker.EnterLayer(pos);
 183   tracker.LeaveLayer(pos);
 184
 185   gfx::Transform transform_to_target;
 186   transform_to_target.Translate(0, 96);
 187
 188   do {
 189     Occlusion occlusion =
 190         tracker.GetCurrentOcclusionForLayer(transform_to_target);
 191     for (int x = 0; x < viewport_rect.width(); x += 256) {
 192       for (int y = 0; y < viewport_rect.height(); y += 256) {
 193         gfx::Rect query_content_rect(x, y, 256, 256);
 194         gfx::Rect unoccluded =
 195             occlusion.GetUnoccludedContentRect(query_content_rect);
 196       }
 197     }
 198
 199     timer_.NextLap();
 200   } while (!timer_.HasTimeLimitExpired());
 201
 202   ++begin;
 203   LayerIteratorPosition next = begin;
 204   EXPECT_EQ(active_tree()->root_layer(), next.current_layer);
 205
 206   ++begin;
 207   EXPECT_EQ(end, begin);
 208
 209   PrintResults();
 210 }
 211
 212 }  // namespace
 213 }  // namespace cc