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 "SkDisplacementMapEffect.h" 11 #include "SkImageSource.h" 12 #include "SkSurface.h" 13 14 #define FILTER_WIDTH_SMALL 32 15 #define FILTER_HEIGHT_SMALL 32 16 #define FILTER_WIDTH_LARGE 256 17 #define FILTER_HEIGHT_LARGE 256 18 19 class DisplacementBaseBench : public Benchmark { 20 public: 21 DisplacementBaseBench(bool small) : 22 fInitialized(false), fIsSmall(small) { 23 } 24 25 protected: 26 void onDelayedSetup() override { 27 if (!fInitialized) { 28 this->makeBitmap(); 29 this->makeCheckerboard(); 30 fInitialized = true; 31 } 32 } 33 34 void makeBitmap() { 35 const int w = this->isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; 36 const int h = this->isSmall() ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE; 37 fBitmap.allocN32Pixels(w, h); 38 SkCanvas canvas(fBitmap); 39 canvas.clear(0x00000000); 40 SkPaint paint; 41 paint.setAntiAlias(true); 42 paint.setColor(0xFF884422); 43 paint.setTextSize(SkIntToScalar(96)); 44 const char* str = "g"; 45 canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(55), paint); 46 } 47 48 void makeCheckerboard() { 49 const int w = this->isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; 50 const int h = this->isSmall() ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE; 51 SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(w, h)); 52 SkCanvas* canvas = surface->getCanvas(); 53 canvas->clear(0x00000000); 54 SkPaint darkPaint; 55 darkPaint.setColor(0xFF804020); 56 SkPaint lightPaint; 57 lightPaint.setColor(0xFF244484); 58 for (int y = 0; y < h; y += 16) { 59 for (int x = 0; x < w; x += 16) { 60 canvas->save(); 61 canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); 62 canvas->drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint); 63 canvas->drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint); 64 canvas->drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint); 65 canvas->drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint); 66 canvas->restore(); 67 } 68 } 69 70 fCheckerboard.reset(surface->newImageSnapshot()); 71 } 72 73 void drawClippedBitmap(SkCanvas* canvas, int x, int y, const SkPaint& paint) { 74 canvas->save(); 75 canvas->clipRect(SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y), 76 SkIntToScalar(fBitmap.width()), 77 SkIntToScalar(fBitmap.height()))); 78 canvas->drawBitmap(fBitmap, SkIntToScalar(x), SkIntToScalar(y), &paint); 79 canvas->restore(); 80 } 81 82 inline bool isSmall() const { return fIsSmall; } 83 84 SkBitmap fBitmap; 85 SkAutoTUnref<SkImage> fCheckerboard; 86 87 private: 88 bool fInitialized; 89 bool fIsSmall; 90 typedef Benchmark INHERITED; 91 }; 92 93 class DisplacementZeroBench : public DisplacementBaseBench { 94 public: 95 DisplacementZeroBench(bool small) : INHERITED(small) { 96 } 97 98 protected: 99 const char* onGetName() override { 100 return this->isSmall() ? "displacement_zero_small" : "displacement_zero_large"; 101 } 102 103 void onDraw(int loops, SkCanvas* canvas) override { 104 SkPaint paint; 105 SkAutoTUnref<SkImageFilter> displ(SkImageSource::Create(fCheckerboard)); 106 // No displacement effect 107 paint.setImageFilter(SkDisplacementMapEffect::Create( 108 SkDisplacementMapEffect::kR_ChannelSelectorType, 109 SkDisplacementMapEffect::kG_ChannelSelectorType, 0.0f, displ))->unref(); 110 111 for (int i = 0; i < loops; i++) { 112 this->drawClippedBitmap(canvas, 0, 0, paint); 113 } 114 } 115 116 private: 117 typedef DisplacementBaseBench INHERITED; 118 }; 119 120 class DisplacementAlphaBench : public DisplacementBaseBench { 121 public: 122 DisplacementAlphaBench(bool small) : INHERITED(small) { 123 } 124 125 protected: 126 const char* onGetName() override { 127 return isSmall() ? "displacement_alpha_small" : "displacement_alpha_large"; 128 } 129 130 void onDraw(int loops, SkCanvas* canvas) override { 131 SkPaint paint; 132 SkAutoTUnref<SkImageFilter> displ(SkImageSource::Create(fCheckerboard)); 133 // Displacement, with 1 alpha component (which isn't pre-multiplied) 134 paint.setImageFilter(SkDisplacementMapEffect::Create( 135 SkDisplacementMapEffect::kB_ChannelSelectorType, 136 SkDisplacementMapEffect::kA_ChannelSelectorType, 16.0f, displ))->unref(); 137 for (int i = 0; i < loops; i++) { 138 drawClippedBitmap(canvas, 100, 0, paint); 139 } 140 } 141 142 private: 143 typedef DisplacementBaseBench INHERITED; 144 }; 145 146 class DisplacementFullBench : public DisplacementBaseBench { 147 public: 148 DisplacementFullBench(bool small) : INHERITED(small) { 149 } 150 151 protected: 152 const char* onGetName() override { 153 return isSmall() ? "displacement_full_small" : "displacement_full_large"; 154 } 155 156 void onDraw(int loops, SkCanvas* canvas) override { 157 SkPaint paint; 158 SkAutoTUnref<SkImageFilter> displ(SkImageSource::Create(fCheckerboard)); 159 // Displacement, with 2 non-alpha components 160 paint.setImageFilter(SkDisplacementMapEffect::Create( 161 SkDisplacementMapEffect::kR_ChannelSelectorType, 162 SkDisplacementMapEffect::kB_ChannelSelectorType, 32.0f, displ))->unref(); 163 for (int i = 0; i < loops; ++i) { 164 this->drawClippedBitmap(canvas, 200, 0, paint); 165 } 166 } 167 168 private: 169 typedef DisplacementBaseBench INHERITED; 170 }; 171 172 /////////////////////////////////////////////////////////////////////////////// 173 174 DEF_BENCH( return new DisplacementZeroBench(true); ) 175 DEF_BENCH( return new DisplacementAlphaBench(true); ) 176 DEF_BENCH( return new DisplacementFullBench(true); ) 177 DEF_BENCH( return new DisplacementZeroBench(false); ) 178 DEF_BENCH( return new DisplacementAlphaBench(false); ) 179 DEF_BENCH( return new DisplacementFullBench(false); ) 180
