1 /* 2 * Copyright 2012 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/SkBitmap.h" 10 #include "include/core/SkCanvas.h" 11 #include "include/core/SkPaint.h" 12 #include "include/core/SkShader.h" 13 #include "include/core/SkString.h" 14 #include "include/core/SkVertices.h" 15 #include "include/utils/SkRandom.h" 16 17 // This bench simulates the calls Skia sees from various HTML5 canvas 18 // game bench marks 19 class GameBench : public Benchmark { 20 public: 21 enum Type { 22 kScale_Type, 23 kTranslate_Type, 24 kRotate_Type 25 }; 26 27 enum Clear { 28 kFull_Clear, 29 kPartial_Clear 30 }; 31 GameBench(Type type,Clear clear,bool aligned=false,bool useAtlas=false,bool useDrawVertices=false)32 GameBench(Type type, Clear clear, 33 bool aligned = false, bool useAtlas = false, 34 bool useDrawVertices = false) 35 : fType(type) 36 , fClear(clear) 37 , fAligned(aligned) 38 , fUseAtlas(useAtlas) 39 , fUseDrawVertices(useDrawVertices) 40 , fName("game") 41 , fNumSaved(0) 42 , fInitialized(false) { 43 44 switch (fType) { 45 case kScale_Type: 46 fName.append("_scale"); 47 break; 48 case kTranslate_Type: 49 fName.append("_trans"); 50 break; 51 case kRotate_Type: 52 fName.append("_rot"); 53 break; 54 } 55 56 if (aligned) { 57 fName.append("_aligned"); 58 } 59 60 if (kPartial_Clear == clear) { 61 fName.append("_partial"); 62 } else { 63 fName.append("_full"); 64 } 65 66 if (useAtlas) { 67 fName.append("_atlas"); 68 } 69 70 if (useDrawVertices) { 71 fName.append("_drawVerts"); 72 } 73 74 // It's HTML 5 canvas, so always AA 75 fName.append("_aa"); 76 } 77 78 protected: onGetName()79 const char* onGetName() override { 80 return fName.c_str(); 81 } 82 onDelayedSetup()83 void onDelayedSetup() override { 84 if (!fInitialized) { 85 this->makeCheckerboard(); 86 this->makeAtlas(); 87 fInitialized = true; 88 } 89 } 90 onDraw(int loops,SkCanvas * canvas)91 void onDraw(int loops, SkCanvas* canvas) override { 92 SkRandom scaleRand; 93 SkRandom transRand; 94 SkRandom rotRand; 95 96 int width, height; 97 if (fUseAtlas) { 98 width = kAtlasCellWidth; 99 height = kAtlasCellHeight; 100 } else { 101 width = kCheckerboardWidth; 102 height = kCheckerboardHeight; 103 } 104 105 SkPaint clearPaint; 106 clearPaint.setColor(0xFF000000); 107 clearPaint.setAntiAlias(true); 108 109 SkISize size = canvas->getBaseLayerSize(); 110 111 SkScalar maxTransX, maxTransY; 112 113 if (kScale_Type == fType) { 114 maxTransX = size.fWidth - (1.5f * width); 115 maxTransY = size.fHeight - (1.5f * height); 116 } else if (kTranslate_Type == fType) { 117 maxTransX = SkIntToScalar(size.fWidth - width); 118 maxTransY = SkIntToScalar(size.fHeight - height); 119 } else { 120 SkASSERT(kRotate_Type == fType); 121 // Yes, some rotations will be off the top and left sides 122 maxTransX = size.fWidth - SK_ScalarSqrt2 * height; 123 maxTransY = size.fHeight - SK_ScalarSqrt2 * height; 124 } 125 126 SkMatrix mat; 127 SkRect dst = { 0, 0, SkIntToScalar(width), SkIntToScalar(height) }; 128 SkRect clearRect = { -1.0f, -1.0f, width+1.0f, height+1.0f }; 129 SkPoint verts[4] = { // for drawVertices path 130 { 0, 0 }, 131 { 0, SkIntToScalar(height) }, 132 { SkIntToScalar(width), SkIntToScalar(height) }, 133 { SkIntToScalar(width), 0 } 134 }; 135 uint16_t indices[6] = { 0, 1, 2, 0, 2, 3 }; 136 137 SkPaint p; 138 p.setColor(0xFF000000); 139 p.setFilterQuality(kLow_SkFilterQuality); 140 141 SkPaint p2; // for drawVertices path 142 p2.setColor(0xFF000000); 143 p2.setFilterQuality(kLow_SkFilterQuality); 144 p2.setShader(fAtlas.makeShader()); 145 146 for (int i = 0; i < loops; ++i, ++fNumSaved) { 147 if (0 == i % kNumBeforeClear) { 148 if (kPartial_Clear == fClear) { 149 for (int j = 0; j < fNumSaved; ++j) { 150 canvas->setMatrix(SkMatrix::I()); 151 mat.setTranslate(fSaved[j][0], fSaved[j][1]); 152 153 if (kScale_Type == fType) { 154 mat.preScale(fSaved[j][2], fSaved[j][2]); 155 } else if (kRotate_Type == fType) { 156 mat.preRotate(fSaved[j][2]); 157 } 158 159 canvas->concat(mat); 160 canvas->drawRect(clearRect, clearPaint); 161 } 162 } else { 163 canvas->clear(0xFF000000); 164 } 165 166 fNumSaved = 0; 167 } 168 169 SkASSERT(fNumSaved < kNumBeforeClear); 170 171 canvas->setMatrix(SkMatrix::I()); 172 173 fSaved[fNumSaved][0] = transRand.nextRangeScalar(0.0f, maxTransX); 174 fSaved[fNumSaved][1] = transRand.nextRangeScalar(0.0f, maxTransY); 175 if (fAligned) { 176 // make the translations integer aligned 177 fSaved[fNumSaved][0] = SkScalarFloorToScalar(fSaved[fNumSaved][0]); 178 fSaved[fNumSaved][1] = SkScalarFloorToScalar(fSaved[fNumSaved][1]); 179 } 180 181 mat.setTranslate(fSaved[fNumSaved][0], fSaved[fNumSaved][1]); 182 183 if (kScale_Type == fType) { 184 fSaved[fNumSaved][2] = scaleRand.nextRangeScalar(0.5f, 1.5f); 185 mat.preScale(fSaved[fNumSaved][2], fSaved[fNumSaved][2]); 186 } else if (kRotate_Type == fType) { 187 fSaved[fNumSaved][2] = rotRand.nextRangeScalar(0.0f, 360.0f); 188 mat.preRotate(fSaved[fNumSaved][2]); 189 } 190 191 canvas->concat(mat); 192 if (fUseAtlas) { 193 const int curCell = i % (kNumAtlasedX * kNumAtlasedY); 194 SkIRect src = fAtlasRects[curCell % (kNumAtlasedX)][curCell / (kNumAtlasedX)]; 195 196 if (fUseDrawVertices) { 197 SkPoint uvs[4] = { 198 { SkIntToScalar(src.fLeft), SkIntToScalar(src.fBottom) }, 199 { SkIntToScalar(src.fLeft), SkIntToScalar(src.fTop) }, 200 { SkIntToScalar(src.fRight), SkIntToScalar(src.fTop) }, 201 { SkIntToScalar(src.fRight), SkIntToScalar(src.fBottom) }, 202 }; 203 canvas->drawVertices(SkVertices::MakeCopy(SkVertices::kTriangles_VertexMode, 204 4, verts, uvs, nullptr, 6, indices), 205 SkBlendMode::kModulate, p2); 206 } else { 207 canvas->drawBitmapRect(fAtlas, src, dst, &p, 208 SkCanvas::kFast_SrcRectConstraint); 209 } 210 } else { 211 canvas->drawBitmapRect(fCheckerboard, dst, &p); 212 } 213 } 214 } 215 216 private: 217 static const int kCheckerboardWidth = 64; 218 static const int kCheckerboardHeight = 128; 219 220 static const int kAtlasCellWidth = 48; 221 static const int kAtlasCellHeight = 36; 222 static const int kNumAtlasedX = 5; 223 static const int kNumAtlasedY = 5; 224 static const int kAtlasSpacer = 2; 225 static const int kTotAtlasWidth = kNumAtlasedX * kAtlasCellWidth + 226 (kNumAtlasedX+1) * kAtlasSpacer; 227 static const int kTotAtlasHeight = kNumAtlasedY * kAtlasCellHeight + 228 (kNumAtlasedY+1) * kAtlasSpacer; 229 static const int kNumBeforeClear = 100; 230 231 Type fType; 232 Clear fClear; 233 bool fAligned; 234 bool fUseAtlas; 235 bool fUseDrawVertices; 236 SkString fName; 237 int fNumSaved; // num draws stored in 'fSaved' 238 bool fInitialized; 239 240 // 0 & 1 are always x & y translate. 2 is either scale or rotate. 241 SkScalar fSaved[kNumBeforeClear][3]; 242 243 SkBitmap fCheckerboard; 244 SkBitmap fAtlas; 245 SkIRect fAtlasRects[kNumAtlasedX][kNumAtlasedY]; 246 247 // Note: the resulting checker board has transparency makeCheckerboard()248 void makeCheckerboard() { 249 static int kCheckSize = 16; 250 251 fCheckerboard.allocN32Pixels(kCheckerboardWidth, kCheckerboardHeight); 252 for (int y = 0; y < kCheckerboardHeight; ++y) { 253 int even = (y / kCheckSize) % 2; 254 255 SkPMColor* scanline = fCheckerboard.getAddr32(0, y); 256 257 for (int x = 0; x < kCheckerboardWidth; ++x) { 258 if (even == (x / kCheckSize) % 2) { 259 *scanline++ = 0xFFFF0000; 260 } else { 261 *scanline++ = 0x00000000; 262 } 263 } 264 } 265 } 266 267 // Note: the resulting atlas has transparency makeAtlas()268 void makeAtlas() { 269 SkRandom rand; 270 271 SkColor colors[kNumAtlasedX][kNumAtlasedY]; 272 273 for (int y = 0; y < kNumAtlasedY; ++y) { 274 for (int x = 0; x < kNumAtlasedX; ++x) { 275 colors[x][y] = rand.nextU() | 0xff000000; 276 fAtlasRects[x][y] = SkIRect::MakeXYWH(kAtlasSpacer + x * (kAtlasCellWidth + kAtlasSpacer), 277 kAtlasSpacer + y * (kAtlasCellHeight + kAtlasSpacer), 278 kAtlasCellWidth, 279 kAtlasCellHeight); 280 } 281 } 282 283 fAtlas.allocN32Pixels(kTotAtlasWidth, kTotAtlasHeight); 284 285 for (int y = 0; y < kTotAtlasHeight; ++y) { 286 int colorY = y / (kAtlasCellHeight + kAtlasSpacer); 287 bool inColorY = (y % (kAtlasCellHeight + kAtlasSpacer)) >= kAtlasSpacer; 288 289 SkPMColor* scanline = fAtlas.getAddr32(0, y); 290 291 for (int x = 0; x < kTotAtlasWidth; ++x, ++scanline) { 292 int colorX = x / (kAtlasCellWidth + kAtlasSpacer); 293 bool inColorX = (x % (kAtlasCellWidth + kAtlasSpacer)) >= kAtlasSpacer; 294 295 if (inColorX && inColorY) { 296 SkASSERT(colorX < kNumAtlasedX && colorY < kNumAtlasedY); 297 *scanline = colors[colorX][colorY]; 298 } else { 299 *scanline = 0x00000000; 300 } 301 } 302 } 303 } 304 305 typedef Benchmark INHERITED; 306 }; 307 308 // Partial clear 309 DEF_BENCH(return new GameBench(GameBench::kScale_Type, GameBench::kPartial_Clear);) 310 DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kPartial_Clear);) 311 DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kPartial_Clear, true);) 312 DEF_BENCH(return new GameBench(GameBench::kRotate_Type, GameBench::kPartial_Clear);) 313 314 // Full clear 315 DEF_BENCH(return new GameBench(GameBench::kScale_Type, GameBench::kFull_Clear);) 316 DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kFull_Clear);) 317 DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kFull_Clear, true);) 318 DEF_BENCH(return new GameBench(GameBench::kRotate_Type, GameBench::kFull_Clear);) 319 320 // Atlased 321 DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kFull_Clear, false, true);) 322 DEF_BENCH(return new GameBench( 323 GameBench::kTranslate_Type, GameBench::kFull_Clear, false, true, true);) 324