cc/layers/layer_perftest.cc

   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/layers/layer.h"
   6
   7 #include "cc/debug/lap_timer.h"
   8 #include "cc/resources/layer_painter.h"
   9 #include "cc/test/fake_impl_proxy.h"
  10 #include "cc/test/fake_layer_tree_host.h"
  11 #include "cc/test/fake_layer_tree_host_client.h"
  12 #include "cc/test/fake_layer_tree_host_impl.h"
  13
  14 #include "testing/gtest/include/gtest/gtest.h"
  15 #include "testing/perf/perf_test.h"
  16
  17 namespace cc {
  18 namespace {
  19
  20 static const int kTimeLimitMillis = 3000;
  21 static const int kWarmupRuns = 5;
  22 static const int kTimeCheckInterval = 10;
  23
  24 class MockLayerPainter : public LayerPainter {
  25  public:
  26   void Paint(SkCanvas* canvas, const gfx::Rect& content_rect) override {}
  27 };
  28
  29
  30 class LayerPerfTest : public testing::Test {
  31  public:
  32   LayerPerfTest()
  33       : host_impl_(&proxy_, &shared_bitmap_manager_),
  34         fake_client_(FakeLayerTreeHostClient::DIRECT_3D),
  35         timer_(kWarmupRuns,
  36                base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
  37                kTimeCheckInterval) {}
  38
  39  protected:
  40   void SetUp() override {
  41     layer_tree_host_ = FakeLayerTreeHost::Create(&fake_client_);
  42     layer_tree_host_->InitializeSingleThreaded(
  43         &fake_client_, base::MessageLoopProxy::current(), nullptr);
  44   }
  45
  46   void TearDown() override {
  47     layer_tree_host_->SetRootLayer(nullptr);
  48     layer_tree_host_ = nullptr;
  49   }
  50
  51   FakeImplProxy proxy_;
  52   TestSharedBitmapManager shared_bitmap_manager_;
  53   FakeLayerTreeHostImpl host_impl_;
  54
  55   FakeLayerTreeHostClient fake_client_;
  56   scoped_ptr<FakeLayerTreeHost> layer_tree_host_;
  57   LapTimer timer_;
  58 };
  59
  60 TEST_F(LayerPerfTest, PushPropertiesTo) {
  61   scoped_refptr<Layer> test_layer = Layer::Create();
  62   scoped_ptr<LayerImpl> impl_layer =
  63       LayerImpl::Create(host_impl_.active_tree(), 1);
  64
  65   layer_tree_host_->SetRootLayer(test_layer);
  66
  67   float transform_origin_z = 0;
  68   bool scrollable = true;
  69   bool contents_opaque = true;
  70   bool double_sided = true;
  71   bool hide_layer_and_subtree = true;
  72   bool masks_to_bounds = true;
  73
  74   // Properties changed.
  75   timer_.Reset();
  76   do {
  77     test_layer->SetNeedsDisplayRect(gfx::Rect(5, 5));
  78     test_layer->SetTransformOrigin(gfx::Point3F(0.f, 0.f, transform_origin_z));
  79     test_layer->SetContentsOpaque(contents_opaque);
  80     test_layer->SetDoubleSided(double_sided);
  81     test_layer->SetHideLayerAndSubtree(hide_layer_and_subtree);
  82     test_layer->SetMasksToBounds(masks_to_bounds);
  83     test_layer->SetScrollClipLayerId(scrollable ? test_layer->id()
  84                                                 : Layer::INVALID_ID);
  85     test_layer->PushPropertiesTo(impl_layer.get());
  86
  87     transform_origin_z += 0.01f;
  88     scrollable = !scrollable;
  89     contents_opaque = !contents_opaque;
  90     double_sided = !double_sided;
  91     hide_layer_and_subtree = !hide_layer_and_subtree;
  92     masks_to_bounds = !masks_to_bounds;
  93
  94     timer_.NextLap();
  95   } while (!timer_.HasTimeLimitExpired());
  96
  97   perf_test::PrintResult("push_properties_to",
  98                          "",
  99                          "props_changed",
 100                          timer_.LapsPerSecond(),
 101                          "runs/s",
 102                          true);
 103
 104   // Properties didn't change.
 105   timer_.Reset();
 106   do {
 107     test_layer->PushPropertiesTo(impl_layer.get());
 108     timer_.NextLap();
 109   } while (!timer_.HasTimeLimitExpired());
 110
 111   perf_test::PrintResult("push_properties_to",
 112                          "",
 113                          "props_didnt_change",
 114                          timer_.LapsPerSecond(),
 115                          "runs/s",
 116                          true);
 117 }
 118
 119
 120 }  // namespace
 121 }  // namespace cc