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      1 // Copyright 2013 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_common.h"
      6 
      7 #include <sstream>
      8 
      9 #include "base/files/file_path.h"
     10 #include "base/files/file_util.h"
     11 #include "base/memory/scoped_ptr.h"
     12 #include "base/path_service.h"
     13 #include "base/strings/string_piece.h"
     14 #include "base/threading/thread.h"
     15 #include "base/time/time.h"
     16 #include "cc/base/scoped_ptr_deque.h"
     17 #include "cc/base/scoped_ptr_vector.h"
     18 #include "cc/debug/lap_timer.h"
     19 #include "cc/layers/layer.h"
     20 #include "cc/output/bsp_tree.h"
     21 #include "cc/quads/draw_polygon.h"
     22 #include "cc/quads/draw_quad.h"
     23 #include "cc/test/fake_content_layer_client.h"
     24 #include "cc/test/fake_layer_tree_host_client.h"
     25 #include "cc/test/layer_tree_json_parser.h"
     26 #include "cc/test/layer_tree_test.h"
     27 #include "cc/test/paths.h"
     28 #include "cc/trees/layer_sorter.h"
     29 #include "cc/trees/layer_tree_impl.h"
     30 #include "testing/perf/perf_test.h"
     31 
     32 namespace cc {
     33 namespace {
     34 
     35 static const int kTimeLimitMillis = 2000;
     36 static const int kWarmupRuns = 5;
     37 static const int kTimeCheckInterval = 10;
     38 
     39 class LayerTreeHostCommonPerfTest : public LayerTreeTest {
     40  public:
     41   LayerTreeHostCommonPerfTest()
     42       : timer_(kWarmupRuns,
     43                base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
     44                kTimeCheckInterval) {}
     45 
     46   void ReadTestFile(const std::string& name) {
     47     base::FilePath test_data_dir;
     48     ASSERT_TRUE(PathService::Get(CCPaths::DIR_TEST_DATA, &test_data_dir));
     49     base::FilePath json_file = test_data_dir.AppendASCII(name + ".json");
     50     ASSERT_TRUE(base::ReadFileToString(json_file, &json_));
     51   }
     52 
     53   virtual void SetupTree() OVERRIDE {
     54     gfx::Size viewport = gfx::Size(720, 1038);
     55     layer_tree_host()->SetViewportSize(viewport);
     56     scoped_refptr<Layer> root =
     57         ParseTreeFromJson(json_, &content_layer_client_);
     58     ASSERT_TRUE(root.get());
     59     layer_tree_host()->SetRootLayer(root);
     60   }
     61 
     62   void SetTestName(const std::string& name) { test_name_ = name; }
     63 
     64   virtual void AfterTest() OVERRIDE {
     65     CHECK(!test_name_.empty()) << "Must SetTestName() before TearDown().";
     66     perf_test::PrintResult("calc_draw_props_time",
     67                            "",
     68                            test_name_,
     69                            1000 * timer_.MsPerLap(),
     70                            "us",
     71                            true);
     72   }
     73 
     74  protected:
     75   FakeContentLayerClient content_layer_client_;
     76   LapTimer timer_;
     77   std::string test_name_;
     78   std::string json_;
     79 };
     80 
     81 class CalcDrawPropsMainTest : public LayerTreeHostCommonPerfTest {
     82  public:
     83   void RunCalcDrawProps() {
     84     RunTest(false, false, false);
     85   }
     86 
     87   virtual void BeginTest() OVERRIDE {
     88     timer_.Reset();
     89 
     90     do {
     91       bool can_render_to_separate_surface = true;
     92       int max_texture_size = 8096;
     93       RenderSurfaceLayerList update_list;
     94       LayerTreeHostCommon::CalcDrawPropsMainInputs inputs(
     95           layer_tree_host()->root_layer(),
     96           layer_tree_host()->device_viewport_size(),
     97           gfx::Transform(),
     98           layer_tree_host()->device_scale_factor(),
     99           layer_tree_host()->page_scale_factor(),
    100           layer_tree_host()->page_scale_layer(),
    101           max_texture_size,
    102           layer_tree_host()->settings().can_use_lcd_text,
    103           can_render_to_separate_surface,
    104           layer_tree_host()
    105               ->settings()
    106               .layer_transforms_should_scale_layer_contents,
    107           &update_list,
    108           0);
    109       LayerTreeHostCommon::CalculateDrawProperties(&inputs);
    110 
    111       timer_.NextLap();
    112     } while (!timer_.HasTimeLimitExpired());
    113 
    114     EndTest();
    115   }
    116 };
    117 
    118 class CalcDrawPropsImplTest : public LayerTreeHostCommonPerfTest {
    119  public:
    120   void RunCalcDrawProps() {
    121     RunTestWithImplSidePainting();
    122   }
    123 
    124   virtual void BeginTest() OVERRIDE {
    125     PostSetNeedsCommitToMainThread();
    126   }
    127 
    128   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
    129     timer_.Reset();
    130     LayerTreeImpl* active_tree = host_impl->active_tree();
    131 
    132     do {
    133       bool can_render_to_separate_surface = true;
    134       int max_texture_size = 8096;
    135       DoCalcDrawPropertiesImpl(can_render_to_separate_surface,
    136                                max_texture_size,
    137                                active_tree,
    138                                host_impl);
    139 
    140       timer_.NextLap();
    141     } while (!timer_.HasTimeLimitExpired());
    142 
    143     EndTest();
    144   }
    145 
    146   void DoCalcDrawPropertiesImpl(bool can_render_to_separate_surface,
    147                                 int max_texture_size,
    148                                 LayerTreeImpl* active_tree,
    149                                 LayerTreeHostImpl* host_impl) {
    150     LayerImplList update_list;
    151     LayerTreeHostCommon::CalcDrawPropsImplInputs inputs(
    152         active_tree->root_layer(),
    153         active_tree->DrawViewportSize(),
    154         host_impl->DrawTransform(),
    155         active_tree->device_scale_factor(),
    156         active_tree->total_page_scale_factor(),
    157         active_tree->InnerViewportContainerLayer(),
    158         max_texture_size,
    159         host_impl->settings().can_use_lcd_text,
    160         can_render_to_separate_surface,
    161         host_impl->settings().layer_transforms_should_scale_layer_contents,
    162         &update_list,
    163         0);
    164     LayerTreeHostCommon::CalculateDrawProperties(&inputs);
    165   }
    166 };
    167 
    168 class LayerSorterMainTest : public CalcDrawPropsImplTest {
    169  public:
    170   void RunSortLayers() { RunTest(false, false, false); }
    171 
    172   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
    173 
    174   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
    175     LayerTreeImpl* active_tree = host_impl->active_tree();
    176     // First build the tree and then we'll start running tests on layersorter
    177     // itself
    178     bool can_render_to_separate_surface = true;
    179     int max_texture_size = 8096;
    180     DoCalcDrawPropertiesImpl(can_render_to_separate_surface,
    181                              max_texture_size,
    182                              active_tree,
    183                              host_impl);
    184 
    185     // Behaviour of this test is different from that of sorting in practice.
    186     // In this case, all layers that exist in any 3D context are put into a list
    187     // and are sorted as one big 3D context instead of several smaller ones.
    188     BuildLayerImplList(active_tree->root_layer(), &base_list_);
    189     timer_.Reset();
    190     do {
    191       // Here we'll move the layers into a LayerImpl list of their own to be
    192       // sorted so we don't have a sorted list for every run after the first
    193       LayerImplList test_list = base_list_;
    194       layer_sorter_.Sort(test_list.begin(), test_list.end());
    195       timer_.NextLap();
    196     } while (!timer_.HasTimeLimitExpired());
    197 
    198     EndTest();
    199   }
    200 
    201   void BuildLayerImplList(LayerImpl* layer, LayerImplList* list) {
    202     if (layer->Is3dSorted()) {
    203       list->push_back(layer);
    204     }
    205 
    206     for (size_t i = 0; i < layer->children().size(); i++) {
    207       BuildLayerImplList(layer->children()[i], list);
    208     }
    209   }
    210 
    211  private:
    212   LayerImplList base_list_;
    213   LayerSorter layer_sorter_;
    214 };
    215 
    216 class BspTreePerfTest : public LayerSorterMainTest {
    217  public:
    218   void RunSortLayers() { RunTest(false, false, false); }
    219 
    220   void SetNumberOfDuplicates(int num_duplicates) {
    221     num_duplicates_ = num_duplicates;
    222   }
    223 
    224   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
    225 
    226   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
    227     LayerTreeImpl* active_tree = host_impl->active_tree();
    228     // First build the tree and then we'll start running tests on layersorter
    229     // itself
    230     bool can_render_to_separate_surface = true;
    231     int max_texture_size = 8096;
    232     DoCalcDrawPropertiesImpl(can_render_to_separate_surface,
    233                              max_texture_size,
    234                              active_tree,
    235                              host_impl);
    236 
    237     LayerImplList base_list;
    238     BuildLayerImplList(active_tree->root_layer(), &base_list);
    239 
    240     int polygon_counter = 0;
    241     ScopedPtrVector<DrawPolygon> polygon_list;
    242     for (LayerImplList::iterator it = base_list.begin(); it != base_list.end();
    243          ++it) {
    244       DrawPolygon* draw_polygon =
    245           new DrawPolygon(NULL,
    246                           gfx::RectF((*it)->content_bounds()),
    247                           (*it)->draw_transform(),
    248                           polygon_counter++);
    249       polygon_list.push_back(scoped_ptr<DrawPolygon>(draw_polygon));
    250     }
    251 
    252     timer_.Reset();
    253     do {
    254       ScopedPtrDeque<DrawPolygon> test_list;
    255       for (int i = 0; i < num_duplicates_; i++) {
    256         for (size_t i = 0; i < polygon_list.size(); i++) {
    257           test_list.push_back(polygon_list[i]->CreateCopy());
    258         }
    259       }
    260       BspTree bsp_tree(&test_list);
    261       timer_.NextLap();
    262     } while (!timer_.HasTimeLimitExpired());
    263 
    264     EndTest();
    265   }
    266 
    267  private:
    268   int num_duplicates_;
    269 };
    270 
    271 TEST_F(CalcDrawPropsMainTest, TenTen) {
    272   SetTestName("10_10_main_thread");
    273   ReadTestFile("10_10_layer_tree");
    274   RunCalcDrawProps();
    275 }
    276 
    277 TEST_F(CalcDrawPropsMainTest, HeavyPage) {
    278   SetTestName("heavy_page_main_thread");
    279   ReadTestFile("heavy_layer_tree");
    280   RunCalcDrawProps();
    281 }
    282 
    283 TEST_F(CalcDrawPropsMainTest, TouchRegionLight) {
    284   SetTestName("touch_region_light_main_thread");
    285   ReadTestFile("touch_region_light");
    286   RunCalcDrawProps();
    287 }
    288 
    289 TEST_F(CalcDrawPropsMainTest, TouchRegionHeavy) {
    290   SetTestName("touch_region_heavy_main_thread");
    291   ReadTestFile("touch_region_heavy");
    292   RunCalcDrawProps();
    293 }
    294 
    295 TEST_F(CalcDrawPropsImplTest, TenTen) {
    296   SetTestName("10_10");
    297   ReadTestFile("10_10_layer_tree");
    298   RunCalcDrawProps();
    299 }
    300 
    301 TEST_F(CalcDrawPropsImplTest, HeavyPage) {
    302   SetTestName("heavy_page");
    303   ReadTestFile("heavy_layer_tree");
    304   RunCalcDrawProps();
    305 }
    306 
    307 TEST_F(CalcDrawPropsImplTest, TouchRegionLight) {
    308   SetTestName("touch_region_light");
    309   ReadTestFile("touch_region_light");
    310   RunCalcDrawProps();
    311 }
    312 
    313 TEST_F(CalcDrawPropsImplTest, TouchRegionHeavy) {
    314   SetTestName("touch_region_heavy");
    315   ReadTestFile("touch_region_heavy");
    316   RunCalcDrawProps();
    317 }
    318 
    319 TEST_F(LayerSorterMainTest, LayerSorterCubes) {
    320   SetTestName("layer_sort_cubes");
    321   ReadTestFile("layer_sort_cubes");
    322   RunSortLayers();
    323 }
    324 
    325 TEST_F(LayerSorterMainTest, LayerSorterRubik) {
    326   SetTestName("layer_sort_rubik");
    327   ReadTestFile("layer_sort_rubik");
    328   RunSortLayers();
    329 }
    330 
    331 TEST_F(BspTreePerfTest, BspTreeCubes) {
    332   SetTestName("bsp_tree_cubes");
    333   SetNumberOfDuplicates(1);
    334   ReadTestFile("layer_sort_cubes");
    335   RunSortLayers();
    336 }
    337 
    338 TEST_F(BspTreePerfTest, BspTreeRubik) {
    339   SetTestName("bsp_tree_rubik");
    340   SetNumberOfDuplicates(1);
    341   ReadTestFile("layer_sort_rubik");
    342   RunSortLayers();
    343 }
    344 
    345 TEST_F(BspTreePerfTest, BspTreeCubes_2) {
    346   SetTestName("bsp_tree_cubes_2");
    347   SetNumberOfDuplicates(2);
    348   ReadTestFile("layer_sort_cubes");
    349   RunSortLayers();
    350 }
    351 
    352 TEST_F(BspTreePerfTest, BspTreeCubes_4) {
    353   SetTestName("bsp_tree_cubes_4");
    354   SetNumberOfDuplicates(4);
    355   ReadTestFile("layer_sort_cubes");
    356   RunSortLayers();
    357 }
    358 
    359 }  // namespace
    360 }  // namespace cc
    361