| // Copyright 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cc/trees/layer_tree_host.h" |
| |
| #include "base/file_util.h" |
| #include "base/files/file_path.h" |
| #include "base/path_service.h" |
| #include "base/strings/string_piece.h" |
| #include "cc/layers/content_layer.h" |
| #include "cc/layers/nine_patch_layer.h" |
| #include "cc/layers/solid_color_layer.h" |
| #include "cc/test/fake_content_layer_client.h" |
| #include "cc/test/layer_tree_json_parser.h" |
| #include "cc/test/layer_tree_test.h" |
| #include "cc/test/paths.h" |
| #include "cc/trees/layer_tree_impl.h" |
| |
| namespace cc { |
| namespace { |
| |
| static const int kTimeLimitMillis = 2000; |
| static const int kWarmupRuns = 5; |
| static const int kTimeCheckInterval = 10; |
| |
| class LayerTreeHostPerfTest : public LayerTreeTest { |
| public: |
| LayerTreeHostPerfTest() |
| : num_draws_(0), |
| num_commits_(0), |
| full_damage_each_frame_(false), |
| animation_driven_drawing_(false), |
| measure_commit_cost_(false) { |
| fake_content_layer_client_.set_paint_all_opaque(true); |
| } |
| |
| virtual void BeginTest() OVERRIDE { |
| BuildTree(); |
| PostSetNeedsCommitToMainThread(); |
| } |
| |
| virtual void Animate(base::TimeTicks monotonic_time) OVERRIDE { |
| if (animation_driven_drawing_ && !TestEnded()) |
| layer_tree_host()->SetNeedsAnimate(); |
| } |
| |
| virtual void BeginCommitOnThread(LayerTreeHostImpl* host_impl) OVERRIDE { |
| if (measure_commit_cost_) |
| commit_start_time_ = base::TimeTicks::HighResNow(); |
| } |
| |
| virtual void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) OVERRIDE { |
| if (measure_commit_cost_ && num_draws_ >= kWarmupRuns) { |
| total_commit_time_ += base::TimeTicks::HighResNow() - commit_start_time_; |
| ++num_commits_; |
| } |
| } |
| |
| virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE { |
| ++num_draws_; |
| if (num_draws_ == kWarmupRuns) |
| start_time_ = base::TimeTicks::HighResNow(); |
| |
| if (!start_time_.is_null() && (num_draws_ % kTimeCheckInterval) == 0) { |
| base::TimeDelta elapsed = base::TimeTicks::HighResNow() - start_time_; |
| if (elapsed >= base::TimeDelta::FromMilliseconds(kTimeLimitMillis)) { |
| elapsed_ = elapsed; |
| EndTest(); |
| return; |
| } |
| } |
| if (!animation_driven_drawing_) |
| impl->SetNeedsRedraw(); |
| if (full_damage_each_frame_) |
| impl->SetFullRootLayerDamage(); |
| } |
| |
| virtual void BuildTree() {} |
| |
| virtual void AfterTest() OVERRIDE { |
| num_draws_ -= kWarmupRuns; |
| |
| // Format matches chrome/test/perf/perf_test.h:PrintResult |
| printf("*RESULT %s: frames: %d, %.2f ms/frame\n", |
| test_name_.c_str(), |
| num_draws_, |
| elapsed_.InMillisecondsF() / num_draws_); |
| if (measure_commit_cost_) { |
| printf("*RESULT %s: commits: %d, %.2f ms/commit\n", |
| test_name_.c_str(), |
| num_commits_, |
| total_commit_time_.InMillisecondsF() / num_commits_); |
| } |
| } |
| |
| protected: |
| base::TimeTicks start_time_; |
| int num_draws_; |
| int num_commits_; |
| std::string test_name_; |
| base::TimeDelta elapsed_; |
| FakeContentLayerClient fake_content_layer_client_; |
| bool full_damage_each_frame_; |
| bool animation_driven_drawing_; |
| |
| bool measure_commit_cost_; |
| base::TimeTicks commit_start_time_; |
| base::TimeDelta total_commit_time_; |
| }; |
| |
| |
| class LayerTreeHostPerfTestJsonReader : public LayerTreeHostPerfTest { |
| public: |
| LayerTreeHostPerfTestJsonReader() |
| : LayerTreeHostPerfTest() { |
| } |
| |
| void ReadTestFile(std::string name) { |
| test_name_ = name; |
| base::FilePath test_data_dir; |
| ASSERT_TRUE(PathService::Get(cc::DIR_TEST_DATA, &test_data_dir)); |
| base::FilePath json_file = test_data_dir.AppendASCII(name + ".json"); |
| ASSERT_TRUE(file_util::ReadFileToString(json_file, &json_)); |
| } |
| |
| virtual void BuildTree() OVERRIDE { |
| gfx::Size viewport = gfx::Size(720, 1038); |
| layer_tree_host()->SetViewportSize(viewport); |
| scoped_refptr<Layer> root = ParseTreeFromJson(json_, |
| &fake_content_layer_client_); |
| ASSERT_TRUE(root.get()); |
| layer_tree_host()->SetRootLayer(root); |
| } |
| |
| private: |
| std::string json_; |
| }; |
| |
| // Simulates a tab switcher scene with two stacks of 10 tabs each. |
| TEST_F(LayerTreeHostPerfTestJsonReader, TenTenSingleThread) { |
| ReadTestFile("10_10_layer_tree"); |
| RunTest(false, false, false); |
| } |
| |
| // Simulates a tab switcher scene with two stacks of 10 tabs each. |
| TEST_F(LayerTreeHostPerfTestJsonReader, |
| TenTenSingleThread_FullDamageEachFrame) { |
| full_damage_each_frame_ = true; |
| ReadTestFile("10_10_layer_tree"); |
| RunTest(false, false, false); |
| } |
| |
| // Invalidates a leaf layer in the tree on the main thread after every commit. |
| class LayerTreeHostPerfTestLeafInvalidates |
| : public LayerTreeHostPerfTestJsonReader { |
| public: |
| virtual void BuildTree() OVERRIDE { |
| LayerTreeHostPerfTestJsonReader::BuildTree(); |
| |
| // Find a leaf layer. |
| for (layer_to_invalidate_ = layer_tree_host()->root_layer(); |
| layer_to_invalidate_->children().size(); |
| layer_to_invalidate_ = layer_to_invalidate_->children()[0]) {} |
| } |
| |
| virtual void DidCommitAndDrawFrame() OVERRIDE { |
| if (TestEnded()) |
| return; |
| |
| static bool flip = true; |
| layer_to_invalidate_->SetOpacity(flip ? 1.f : 0.5f); |
| flip = !flip; |
| } |
| |
| protected: |
| Layer* layer_to_invalidate_; |
| }; |
| |
| // Simulates a tab switcher scene with two stacks of 10 tabs each. Invalidate a |
| // property on a leaf layer in the tree every commit. |
| TEST_F(LayerTreeHostPerfTestLeafInvalidates, TenTenSingleThread) { |
| ReadTestFile("10_10_layer_tree"); |
| RunTest(false, false, false); |
| } |
| |
| // Simulates main-thread scrolling on each frame. |
| class ScrollingLayerTreePerfTest : public LayerTreeHostPerfTestJsonReader { |
| public: |
| ScrollingLayerTreePerfTest() |
| : LayerTreeHostPerfTestJsonReader() { |
| } |
| |
| virtual void BuildTree() OVERRIDE { |
| LayerTreeHostPerfTestJsonReader::BuildTree(); |
| scrollable_ = layer_tree_host()->root_layer()->children()[1]; |
| ASSERT_TRUE(scrollable_.get()); |
| } |
| |
| virtual void Layout() OVERRIDE { |
| static const gfx::Vector2d delta = gfx::Vector2d(0, 10); |
| scrollable_->SetScrollOffset(scrollable_->scroll_offset() + delta); |
| } |
| |
| private: |
| scoped_refptr<Layer> scrollable_; |
| }; |
| |
| TEST_F(ScrollingLayerTreePerfTest, LongScrollablePage) { |
| ReadTestFile("long_scrollable_page"); |
| RunTest(false, false, false); |
| } |
| |
| class ImplSidePaintingPerfTest : public LayerTreeHostPerfTestJsonReader { |
| protected: |
| // Run test with impl-side painting. |
| void RunTestWithImplSidePainting() { RunTest(true, false, true); } |
| }; |
| |
| // Simulates a page with several large, transformed and animated layers. |
| TEST_F(ImplSidePaintingPerfTest, HeavyPage) { |
| animation_driven_drawing_ = true; |
| measure_commit_cost_ = true; |
| ReadTestFile("heavy_layer_tree"); |
| RunTestWithImplSidePainting(); |
| } |
| |
| class PageScaleImplSidePaintingPerfTest : public ImplSidePaintingPerfTest { |
| public: |
| PageScaleImplSidePaintingPerfTest() |
| : max_scale_(16.f), min_scale_(1.f / max_scale_) {} |
| |
| virtual void SetupTree() OVERRIDE { |
| layer_tree_host()->SetPageScaleFactorAndLimits(1.f, min_scale_, max_scale_); |
| } |
| |
| virtual void ApplyScrollAndScale(gfx::Vector2d scroll_delta, |
| float scale_delta) OVERRIDE { |
| float page_scale_factor = layer_tree_host()->page_scale_factor(); |
| page_scale_factor *= scale_delta; |
| layer_tree_host()->SetPageScaleFactorAndLimits( |
| page_scale_factor, min_scale_, max_scale_); |
| } |
| |
| virtual void AnimateLayers(LayerTreeHostImpl* host_impl, |
| base::TimeTicks monotonic_time) OVERRIDE { |
| if (!host_impl->pinch_gesture_active()) { |
| host_impl->PinchGestureBegin(); |
| start_time_ = monotonic_time; |
| } |
| gfx::Point anchor(200, 200); |
| |
| float seconds = (monotonic_time - start_time_).InSecondsF(); |
| |
| // Every half second, zoom from min scale to max scale. |
| float interval = 0.5f; |
| |
| // Start time in the middle of the interval when zoom = 1. |
| seconds += interval / 2.f; |
| |
| // Stack two ranges together to go up from min to max and down from |
| // max to min in the next so as not to have a zoom discrepancy. |
| float time_in_two_intervals = fmod(seconds, 2.f * interval) / interval; |
| |
| // Map everything to go from min to max between 0 and 1. |
| float time_in_one_interval = |
| time_in_two_intervals > 1.f ? 2.f - time_in_two_intervals |
| : time_in_two_intervals; |
| // Normalize time to -1..1. |
| float normalized = 2.f * time_in_one_interval - 1.f; |
| float scale_factor = std::abs(normalized) * (max_scale_ - 1.f) + 1.f; |
| float total_scale = normalized < 0.f ? 1.f / scale_factor : scale_factor; |
| |
| float desired_delta = |
| total_scale / host_impl->active_tree()->total_page_scale_factor(); |
| host_impl->PinchGestureUpdate(desired_delta, anchor); |
| } |
| |
| private: |
| float max_scale_; |
| float min_scale_; |
| base::TimeTicks start_time_; |
| }; |
| |
| TEST_F(PageScaleImplSidePaintingPerfTest, HeavyPage) { |
| measure_commit_cost_ = true; |
| ReadTestFile("heavy_layer_tree"); |
| RunTestWithImplSidePainting(); |
| } |
| |
| } // namespace |
| } // namespace cc |