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| // Copyright 2013 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #include "flutter/benchmarking/benchmarking.h" | ||
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| #include "flutter/display_list/geometry/dl_region.h" | ||
| #include "third_party/skia/include/core/SkRegion.h" | ||
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| #include <random> | ||
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| class SkRegionAdapter { | ||
| public: | ||
| void addRect(const SkIRect& rect) { region_.op(rect, SkRegion::kUnion_Op); } | ||
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| std::vector<SkIRect> getRects() { | ||
| std::vector<SkIRect> rects; | ||
| SkRegion::Iterator it(region_); | ||
| while (!it.done()) { | ||
| rects.push_back(it.rect()); | ||
| it.next(); | ||
| } | ||
| return rects; | ||
| } | ||
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| private: | ||
| SkRegion region_; | ||
| }; | ||
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| template <typename Region> | ||
| void RunRegionBenchmark(benchmark::State& state, int maxSize) { | ||
| while (state.KeepRunning()) { | ||
| std::random_device d; | ||
| std::seed_seq seed{2, 1, 3}; | ||
| std::mt19937 rng(seed); | ||
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| std::uniform_int_distribution pos(0, 4000); | ||
| std::uniform_int_distribution size(1, maxSize); | ||
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| Region region; | ||
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| for (int i = 0; i < 2000; ++i) { | ||
| SkIRect rect = | ||
| SkIRect::MakeXYWH(pos(rng), pos(rng), size(rng), size(rng)); | ||
| region.addRect(rect); | ||
| } | ||
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| auto vec2 = region.getRects(); | ||
| } | ||
| } | ||
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| namespace flutter { | ||
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| static void BM_RegionBenchmarkSkRegion(benchmark::State& state, int maxSize) { | ||
| RunRegionBenchmark<SkRegionAdapter>(state, maxSize); | ||
| } | ||
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| static void BM_RegionBenchmarkDlRegion(benchmark::State& state, int maxSize) { | ||
| RunRegionBenchmark<DlRegion>(state, maxSize); | ||
| } | ||
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| BENCHMARK_CAPTURE(BM_RegionBenchmarkDlRegion, Small, 100) | ||
| ->Unit(benchmark::kMicrosecond); | ||
| BENCHMARK_CAPTURE(BM_RegionBenchmarkSkRegion, Small, 100) | ||
| ->Unit(benchmark::kMicrosecond); | ||
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| BENCHMARK_CAPTURE(BM_RegionBenchmarkDlRegion, Medium, 400) | ||
| ->Unit(benchmark::kMicrosecond); | ||
| BENCHMARK_CAPTURE(BM_RegionBenchmarkSkRegion, Medium, 400) | ||
| ->Unit(benchmark::kMicrosecond); | ||
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| BENCHMARK_CAPTURE(BM_RegionBenchmarkDlRegion, Large, 1500) | ||
| ->Unit(benchmark::kMicrosecond); | ||
| BENCHMARK_CAPTURE(BM_RegionBenchmarkSkRegion, Large, 1500) | ||
| ->Unit(benchmark::kMicrosecond); | ||
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| } // namespace flutter |
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