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