1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 #include "SkBenchmark.h" 9 #include "SkBitmap.h" 10 #include "SkCanvas.h" 11 #include "SkColorPriv.h" 12 #include "SkPaint.h" 13 #include "SkShader.h" 14 #include "SkString.h" 15 16 static const char* gConfigName[] = { 17 "ERROR", "a1", "a8", "index8", "565", "4444", "8888" 18 }; 19 20 static void drawIntoBitmap(const SkBitmap& bm) { 21 const int w = bm.width(); 22 const int h = bm.height(); 23 24 SkCanvas canvas(bm); 25 SkPaint p; 26 p.setAntiAlias(true); 27 p.setColor(SK_ColorRED); 28 canvas.drawCircle(SkIntToScalar(w)/2, SkIntToScalar(h)/2, 29 SkIntToScalar(SkMin32(w, h))*3/8, p); 30 31 SkRect r; 32 r.set(0, 0, SkIntToScalar(w), SkIntToScalar(h)); 33 p.setStyle(SkPaint::kStroke_Style); 34 p.setStrokeWidth(SkIntToScalar(4)); 35 p.setColor(SK_ColorBLUE); 36 canvas.drawRect(r, p); 37 } 38 39 static int conv6ToByte(int x) { 40 return x * 0xFF / 5; 41 } 42 43 static int convByteTo6(int x) { 44 return x * 5 / 255; 45 } 46 47 static uint8_t compute666Index(SkPMColor c) { 48 int r = SkGetPackedR32(c); 49 int g = SkGetPackedG32(c); 50 int b = SkGetPackedB32(c); 51 52 return convByteTo6(r) * 36 + convByteTo6(g) * 6 + convByteTo6(b); 53 } 54 55 static void convertToIndex666(const SkBitmap& src, SkBitmap* dst) { 56 SkColorTable* ctable = new SkColorTable(216); 57 SkPMColor* colors = ctable->lockColors(); 58 // rrr ggg bbb 59 for (int r = 0; r < 6; r++) { 60 int rr = conv6ToByte(r); 61 for (int g = 0; g < 6; g++) { 62 int gg = conv6ToByte(g); 63 for (int b = 0; b < 6; b++) { 64 int bb = conv6ToByte(b); 65 *colors++ = SkPreMultiplyARGB(0xFF, rr, gg, bb); 66 } 67 } 68 } 69 ctable->unlockColors(true); 70 dst->setConfig(SkBitmap::kIndex8_Config, src.width(), src.height()); 71 dst->allocPixels(ctable); 72 ctable->unref(); 73 74 SkAutoLockPixels alps(src); 75 SkAutoLockPixels alpd(*dst); 76 77 for (int y = 0; y < src.height(); y++) { 78 const SkPMColor* srcP = src.getAddr32(0, y); 79 uint8_t* dstP = dst->getAddr8(0, y); 80 for (int x = src.width() - 1; x >= 0; --x) { 81 *dstP++ = compute666Index(*srcP++); 82 } 83 } 84 } 85 86 class RepeatTileBench : public SkBenchmark { 87 SkPaint fPaint; 88 SkString fName; 89 enum { N = SkBENCHLOOP(20) }; 90 public: 91 RepeatTileBench(void* param, SkBitmap::Config c, bool isOpaque = false) : INHERITED(param) { 92 const int w = 50; 93 const int h = 50; 94 SkBitmap bm; 95 96 if (SkBitmap::kIndex8_Config == c) { 97 bm.setConfig(SkBitmap::kARGB_8888_Config, w, h); 98 } else { 99 bm.setConfig(c, w, h); 100 } 101 bm.allocPixels(); 102 bm.eraseColor(isOpaque ? SK_ColorWHITE : 0); 103 bm.setIsOpaque(isOpaque); 104 105 drawIntoBitmap(bm); 106 107 if (SkBitmap::kIndex8_Config == c) { 108 SkBitmap tmp; 109 convertToIndex666(bm, &tmp); 110 bm = tmp; 111 } 112 113 SkShader* s = SkShader::CreateBitmapShader(bm, 114 SkShader::kRepeat_TileMode, 115 SkShader::kRepeat_TileMode); 116 fPaint.setShader(s)->unref(); 117 fName.printf("repeatTile_%s_%c", gConfigName[bm.config()], isOpaque ? 'X' : 'A'); 118 } 119 120 protected: 121 virtual const char* onGetName() { 122 return fName.c_str(); 123 } 124 125 virtual void onDraw(SkCanvas* canvas) { 126 SkPaint paint(fPaint); 127 this->setupPaint(&paint); 128 129 for (int i = 0; i < N; i++) { 130 canvas->drawPaint(paint); 131 } 132 } 133 134 private: 135 typedef SkBenchmark INHERITED; 136 }; 137 138 DEF_BENCH(return new RepeatTileBench(p, SkBitmap::kARGB_8888_Config, true)) 139 DEF_BENCH(return new RepeatTileBench(p, SkBitmap::kARGB_8888_Config, false)) 140 DEF_BENCH(return new RepeatTileBench(p, SkBitmap::kRGB_565_Config)) 141 DEF_BENCH(return new RepeatTileBench(p, SkBitmap::kARGB_4444_Config)) 142 DEF_BENCH(return new RepeatTileBench(p, SkBitmap::kIndex8_Config)) 143