1 /* 2 * Copyright 2017 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "bench/Benchmark.h" 9 #include "include/core/SkCanvas.h" 10 #include "include/core/SkPath.h" 11 #include "include/pathops/SkPathOps.h" 12 13 class ClipStrategyBench : public Benchmark { 14 public: 15 enum class Mode { 16 kClipPath, 17 kMask, 18 }; 19 ClipStrategyBench(Mode mode,size_t count)20 ClipStrategyBench(Mode mode, size_t count) 21 : fMode(mode) 22 , fCount(count) 23 , fName("clip_strategy_"){ 24 25 if (fMode == Mode::kClipPath) { 26 fName.append("path_"); 27 this->forEachClipCircle([&](float x, float y, float r) { 28 fClipPath.addCircle(x, y, r); 29 }); 30 } else { 31 fName.append("mask_"); 32 } 33 fName.appendf("%zu", count); 34 } 35 36 ~ClipStrategyBench() override = default; 37 38 protected: onGetName()39 const char* onGetName() override { 40 return fName.c_str(); 41 } 42 onDraw(int loops,SkCanvas * canvas)43 void onDraw(int loops, SkCanvas* canvas) override { 44 SkPaint p, srcIn; 45 p.setAntiAlias(true); 46 srcIn.setBlendMode(SkBlendMode::kSrcIn); 47 48 for (int i = 0; i < loops; ++i) { 49 SkAutoCanvasRestore acr(canvas, false); 50 51 if (fMode == Mode::kClipPath) { 52 canvas->save(); 53 canvas->clipPath(fClipPath, true); 54 } else { 55 canvas->saveLayer(nullptr, nullptr); 56 this->forEachClipCircle([&](float x, float y, float r) { 57 canvas->drawCircle(x, y, r, p); 58 }); 59 canvas->saveLayer(nullptr, &srcIn); 60 } 61 canvas->drawColor(SK_ColorGREEN); 62 } 63 } 64 65 private: 66 template <typename Func> forEachClipCircle(Func && func)67 void forEachClipCircle(Func&& func) { 68 auto q = static_cast<float>(this->getSize().x()) / (fCount + 1); 69 for (size_t i = 1; i <= fCount; ++i) { 70 auto x = q * i; 71 func(x, x, q / 2); 72 } 73 } 74 75 Mode fMode; 76 size_t fCount; 77 SkString fName; 78 SkPath fClipPath; 79 80 using INHERITED = Benchmark; 81 }; 82 83 DEF_BENCH( return new ClipStrategyBench(ClipStrategyBench::Mode::kClipPath, 1 );) 84 DEF_BENCH( return new ClipStrategyBench(ClipStrategyBench::Mode::kClipPath, 5 );) 85 DEF_BENCH( return new ClipStrategyBench(ClipStrategyBench::Mode::kClipPath, 10 );) 86 DEF_BENCH( return new ClipStrategyBench(ClipStrategyBench::Mode::kClipPath, 100);) 87 88 DEF_BENCH( return new ClipStrategyBench(ClipStrategyBench::Mode::kMask, 1 );) 89 DEF_BENCH( return new ClipStrategyBench(ClipStrategyBench::Mode::kMask, 5 );) 90 DEF_BENCH( return new ClipStrategyBench(ClipStrategyBench::Mode::kMask, 10 );) 91 DEF_BENCH( return new ClipStrategyBench(ClipStrategyBench::Mode::kMask, 100);) 92