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 "SkBitmapSource.h" 10 #include "SkCanvas.h" 11 #include "SkDisplacementMapEffect.h" 12 13 #define FILTER_WIDTH_SMALL 32 14 #define FILTER_HEIGHT_SMALL 32 15 #define FILTER_WIDTH_LARGE 256 16 #define FILTER_HEIGHT_LARGE 256 17 18 class DisplacementBaseBench : public Benchmark { 19 public: 20 DisplacementBaseBench(bool small) : 21 fInitialized(false), fIsSmall(small) { 22 } 23 24 protected: 25 void onPreDraw() 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_LARGE : FILTER_HEIGHT_LARGE; 36 fBitmap.allocN32Pixels(w, h); 37 SkCanvas canvas(fBitmap); 38 canvas.clear(0x00000000); 39 SkPaint paint; 40 paint.setAntiAlias(true); 41 paint.setColor(0xFF884422); 42 paint.setTextSize(SkIntToScalar(96)); 43 const char* str = "g"; 44 canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(55), 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_LARGE : FILTER_HEIGHT_LARGE; 50 fCheckerboard.allocN32Pixels(w, h); 51 SkCanvas canvas(fCheckerboard); 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 70 void drawClippedBitmap(SkCanvas* canvas, int x, int y, const SkPaint& paint) { 71 canvas->save(); 72 canvas->clipRect(SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y), 73 SkIntToScalar(fBitmap.width()), 74 SkIntToScalar(fBitmap.height()))); 75 canvas->drawBitmap(fBitmap, SkIntToScalar(x), SkIntToScalar(y), &paint); 76 canvas->restore(); 77 } 78 79 inline bool isSmall() const { return fIsSmall; } 80 81 SkBitmap fBitmap, fCheckerboard; 82 private: 83 bool fInitialized; 84 bool fIsSmall; 85 typedef Benchmark INHERITED; 86 }; 87 88 class DisplacementZeroBench : public DisplacementBaseBench { 89 public: 90 DisplacementZeroBench(bool small) : INHERITED(small) { 91 } 92 93 protected: 94 const char* onGetName() override { 95 return this->isSmall() ? "displacement_zero_small" : "displacement_zero_large"; 96 } 97 98 void onDraw(const int loops, SkCanvas* canvas) override { 99 SkPaint paint; 100 SkAutoTUnref<SkImageFilter> displ(SkBitmapSource::Create(fCheckerboard)); 101 // No displacement effect 102 paint.setImageFilter(SkDisplacementMapEffect::Create( 103 SkDisplacementMapEffect::kR_ChannelSelectorType, 104 SkDisplacementMapEffect::kG_ChannelSelectorType, 0.0f, displ))->unref(); 105 106 for (int i = 0; i < loops; i++) { 107 this->drawClippedBitmap(canvas, 0, 0, paint); 108 } 109 } 110 111 private: 112 typedef DisplacementBaseBench INHERITED; 113 }; 114 115 class DisplacementAlphaBench : public DisplacementBaseBench { 116 public: 117 DisplacementAlphaBench(bool small) : INHERITED(small) { 118 } 119 120 protected: 121 const char* onGetName() override { 122 return isSmall() ? "displacement_alpha_small" : "displacement_alpha_large"; 123 } 124 125 void onDraw(const int loops, SkCanvas* canvas) override { 126 SkPaint paint; 127 SkAutoTUnref<SkImageFilter> displ(SkBitmapSource::Create(fCheckerboard)); 128 // Displacement, with 1 alpha component (which isn't pre-multiplied) 129 paint.setImageFilter(SkDisplacementMapEffect::Create( 130 SkDisplacementMapEffect::kB_ChannelSelectorType, 131 SkDisplacementMapEffect::kA_ChannelSelectorType, 16.0f, displ))->unref(); 132 for (int i = 0; i < loops; i++) { 133 drawClippedBitmap(canvas, 100, 0, paint); 134 } 135 } 136 137 private: 138 typedef DisplacementBaseBench INHERITED; 139 }; 140 141 class DisplacementFullBench : public DisplacementBaseBench { 142 public: 143 DisplacementFullBench(bool small) : INHERITED(small) { 144 } 145 146 protected: 147 const char* onGetName() override { 148 return isSmall() ? "displacement_full_small" : "displacement_full_large"; 149 } 150 151 void onDraw(const int loops, SkCanvas* canvas) override { 152 SkPaint paint; 153 SkAutoTUnref<SkImageFilter> displ(SkBitmapSource::Create(fCheckerboard)); 154 // Displacement, with 2 non-alpha components 155 paint.setImageFilter(SkDisplacementMapEffect::Create( 156 SkDisplacementMapEffect::kR_ChannelSelectorType, 157 SkDisplacementMapEffect::kB_ChannelSelectorType, 32.0f, displ))->unref(); 158 for (int i = 0; i < loops; ++i) { 159 this->drawClippedBitmap(canvas, 200, 0, paint); 160 } 161 } 162 163 private: 164 typedef DisplacementBaseBench INHERITED; 165 }; 166 167 /////////////////////////////////////////////////////////////////////////////// 168 169 DEF_BENCH( return new DisplacementZeroBench(true); ) 170 DEF_BENCH( return new DisplacementAlphaBench(true); ) 171 DEF_BENCH( return new DisplacementFullBench(true); ) 172 DEF_BENCH( return new DisplacementZeroBench(false); ) 173 DEF_BENCH( return new DisplacementAlphaBench(false); ) 174 DEF_BENCH( return new DisplacementFullBench(false); ) 175
