1 /* 2 * Copyright 2013 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 "Benchmark.h" 9 #include "SkCanvas.h" 10 #include "SkFont.h" 11 #include "SkDisplacementMapEffect.h" 12 #include "SkImageSource.h" 13 #include "SkSurface.h" 14 15 #define FILTER_WIDTH_SMALL 32 16 #define FILTER_HEIGHT_SMALL 32 17 #define FILTER_WIDTH_LARGE 256 18 #define FILTER_HEIGHT_LARGE 256 19 20 class DisplacementBaseBench : public Benchmark { 21 public: 22 DisplacementBaseBench(bool small) : fInitialized(false), fIsSmall(small) { } 23 24 protected: 25 void onDelayedSetup() override { 26 if (!fInitialized) { 27 this->makeBitmap(); 28 this->makeCheckerboard(); 29 fInitialized = true; 30 } 31 } 32 33 void makeBitmap() { 34 const int w = this->isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; 35 const int h = this->isSmall() ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE; 36 fBitmap.allocN32Pixels(w, h); 37 SkCanvas canvas(fBitmap); 38 canvas.clear(0x00000000); 39 SkPaint paint; 40 paint.setColor(0xFF884422); 41 42 SkFont font; 43 font.setSize(SkIntToScalar(96)); 44 canvas.drawSimpleText("g", 1, kUTF8_SkTextEncoding, SkIntToScalar(15), SkIntToScalar(55), font, paint); 45 } 46 47 void makeCheckerboard() { 48 const int w = this->isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; 49 const int h = this->isSmall() ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE; 50 auto surface(SkSurface::MakeRasterN32Premul(w, h)); 51 SkCanvas* canvas = surface->getCanvas(); 52 canvas->clear(0x00000000); 53 SkPaint darkPaint; 54 darkPaint.setColor(0xFF804020); 55 SkPaint lightPaint; 56 lightPaint.setColor(0xFF244484); 57 for (int y = 0; y < h; y += 16) { 58 for (int x = 0; x < w; x += 16) { 59 canvas->save(); 60 canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); 61 canvas->drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint); 62 canvas->drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint); 63 canvas->drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint); 64 canvas->drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint); 65 canvas->restore(); 66 } 67 } 68 69 fCheckerboard = surface->makeImageSnapshot(); 70 } 71 72 void drawClippedBitmap(SkCanvas* canvas, int x, int y, const SkPaint& paint) { 73 canvas->save(); 74 canvas->clipRect(SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y), 75 SkIntToScalar(fBitmap.width()), 76 SkIntToScalar(fBitmap.height()))); 77 canvas->drawBitmap(fBitmap, SkIntToScalar(x), SkIntToScalar(y), &paint); 78 canvas->restore(); 79 } 80 81 inline bool isSmall() const { return fIsSmall; } 82 83 SkBitmap fBitmap; 84 sk_sp<SkImage> fCheckerboard; 85 86 private: 87 bool fInitialized; 88 bool fIsSmall; 89 typedef Benchmark INHERITED; 90 }; 91 92 class DisplacementZeroBench : public DisplacementBaseBench { 93 public: 94 DisplacementZeroBench(bool small) : INHERITED(small) { } 95 96 protected: 97 const char* onGetName() override { 98 return this->isSmall() ? "displacement_zero_small" : "displacement_zero_large"; 99 } 100 101 void onDraw(int loops, SkCanvas* canvas) override { 102 SkPaint paint; 103 sk_sp<SkImageFilter> displ(SkImageSource::Make(fCheckerboard)); 104 // No displacement effect 105 paint.setImageFilter(SkDisplacementMapEffect::Make( 106 SkDisplacementMapEffect::kR_ChannelSelectorType, 107 SkDisplacementMapEffect::kG_ChannelSelectorType, 108 0.0f, std::move(displ), nullptr)); 109 110 for (int i = 0; i < loops; i++) { 111 this->drawClippedBitmap(canvas, 0, 0, paint); 112 } 113 } 114 115 private: 116 typedef DisplacementBaseBench INHERITED; 117 }; 118 119 class DisplacementAlphaBench : public DisplacementBaseBench { 120 public: 121 DisplacementAlphaBench(bool small) : INHERITED(small) { } 122 123 protected: 124 const char* onGetName() override { 125 return isSmall() ? "displacement_alpha_small" : "displacement_alpha_large"; 126 } 127 128 void onDraw(int loops, SkCanvas* canvas) override { 129 SkPaint paint; 130 sk_sp<SkImageFilter> displ(SkImageSource::Make(fCheckerboard)); 131 // Displacement, with 1 alpha component (which isn't pre-multiplied) 132 paint.setImageFilter(SkDisplacementMapEffect::Make( 133 SkDisplacementMapEffect::kB_ChannelSelectorType, 134 SkDisplacementMapEffect::kA_ChannelSelectorType, 135 16.0f, std::move(displ), nullptr)); 136 for (int i = 0; i < loops; i++) { 137 this->drawClippedBitmap(canvas, 100, 0, paint); 138 } 139 } 140 141 private: 142 typedef DisplacementBaseBench INHERITED; 143 }; 144 145 class DisplacementFullBench : public DisplacementBaseBench { 146 public: 147 DisplacementFullBench(bool small) : INHERITED(small) { } 148 149 protected: 150 const char* onGetName() override { 151 return isSmall() ? "displacement_full_small" : "displacement_full_large"; 152 } 153 154 void onDraw(int loops, SkCanvas* canvas) override { 155 SkPaint paint; 156 sk_sp<SkImageFilter> displ(SkImageSource::Make(fCheckerboard)); 157 // Displacement, with 2 non-alpha components 158 paint.setImageFilter(SkDisplacementMapEffect::Make( 159 SkDisplacementMapEffect::kR_ChannelSelectorType, 160 SkDisplacementMapEffect::kB_ChannelSelectorType, 161 32.0f, std::move(displ), nullptr)); 162 for (int i = 0; i < loops; ++i) { 163 this->drawClippedBitmap(canvas, 200, 0, paint); 164 } 165 } 166 167 private: 168 typedef DisplacementBaseBench INHERITED; 169 }; 170 171 /////////////////////////////////////////////////////////////////////////////// 172 173 DEF_BENCH( return new DisplacementZeroBench(true); ) 174 DEF_BENCH( return new DisplacementAlphaBench(true); ) 175 DEF_BENCH( return new DisplacementFullBench(true); ) 176 DEF_BENCH( return new DisplacementZeroBench(false); ) 177 DEF_BENCH( return new DisplacementAlphaBench(false); ) 178 DEF_BENCH( return new DisplacementFullBench(false); ) 179
