reed@android.com | f523e25 | 2009-01-26 23:15:37 +0000 | [diff] [blame^] | 1 | #include "SkBenchmark.h" |
| 2 | #include "SkBitmap.h" |
| 3 | #include "SkPaint.h" |
| 4 | #include "SkCanvas.h" |
| 5 | #include "SkColorPriv.h" |
| 6 | #include "SkRandom.h" |
| 7 | #include "SkString.h" |
| 8 | |
| 9 | static const char* gTileName[] = { |
| 10 | "clamp", "repeat", "mirror" |
| 11 | }; |
| 12 | |
| 13 | static const char* gConfigName[] = { |
| 14 | "ERROR", "a1", "a8", "index8", "565", "4444", "8888" |
| 15 | }; |
| 16 | |
| 17 | static void drawIntoBitmap(const SkBitmap& bm) { |
| 18 | const int w = bm.width(); |
| 19 | const int h = bm.height(); |
| 20 | |
| 21 | SkCanvas canvas(bm); |
| 22 | SkPaint p; |
| 23 | p.setAntiAlias(true); |
| 24 | p.setColor(SK_ColorRED); |
| 25 | canvas.drawCircle(SkIntToScalar(w)/2, SkIntToScalar(h)/2, |
| 26 | SkIntToScalar(SkMin32(w, h))*3/8, p); |
| 27 | |
| 28 | SkRect r; |
| 29 | r.set(0, 0, SkIntToScalar(w), SkIntToScalar(h)); |
| 30 | p.setStyle(SkPaint::kStroke_Style); |
| 31 | p.setStrokeWidth(SkIntToScalar(4)); |
| 32 | p.setColor(SK_ColorBLUE); |
| 33 | canvas.drawRect(r, p); |
| 34 | } |
| 35 | |
| 36 | static int conv6ToByte(int x) { |
| 37 | return x * 0xFF / 5; |
| 38 | } |
| 39 | |
| 40 | static int convByteTo6(int x) { |
| 41 | return x * 5 / 255; |
| 42 | } |
| 43 | |
| 44 | static uint8_t compute666Index(SkPMColor c) { |
| 45 | int r = SkGetPackedR32(c); |
| 46 | int g = SkGetPackedG32(c); |
| 47 | int b = SkGetPackedB32(c); |
| 48 | |
| 49 | return convByteTo6(r) * 36 + convByteTo6(g) * 6 + convByteTo6(b); |
| 50 | } |
| 51 | |
| 52 | static void convertToIndex666(const SkBitmap& src, SkBitmap* dst) { |
| 53 | SkColorTable* ctable = new SkColorTable(216); |
| 54 | SkPMColor* colors = ctable->lockColors(); |
| 55 | // rrr ggg bbb |
| 56 | for (int r = 0; r < 6; r++) { |
| 57 | int rr = conv6ToByte(r); |
| 58 | for (int g = 0; g < 6; g++) { |
| 59 | int gg = conv6ToByte(g); |
| 60 | for (int b = 0; b < 6; b++) { |
| 61 | int bb = conv6ToByte(b); |
| 62 | *colors++ = SkPreMultiplyARGB(0xFF, rr, gg, bb); |
| 63 | } |
| 64 | } |
| 65 | } |
| 66 | ctable->unlockColors(true); |
| 67 | dst->setConfig(SkBitmap::kIndex8_Config, src.width(), src.height()); |
| 68 | dst->allocPixels(ctable); |
| 69 | ctable->unref(); |
| 70 | |
| 71 | SkAutoLockPixels alps(src); |
| 72 | SkAutoLockPixels alpd(*dst); |
| 73 | |
| 74 | for (int y = 0; y < src.height(); y++) { |
| 75 | const SkPMColor* srcP = src.getAddr32(0, y); |
| 76 | uint8_t* dstP = dst->getAddr8(0, y); |
| 77 | for (int x = src.width() - 1; x >= 0; --x) { |
| 78 | *dstP++ = compute666Index(*srcP++); |
| 79 | } |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | /* Variants for bitmaps |
| 84 | |
| 85 | - src depth (32 w+w/o alpha), 565, 4444, index, a8 |
| 86 | - paint options: filtering, dither, alpha |
| 87 | - matrix options: translate, scale, rotate, persp |
| 88 | - tiling: none, repeat, mirror, clamp |
| 89 | |
| 90 | */ |
| 91 | |
| 92 | class BitmapBench : public SkBenchmark { |
| 93 | SkBitmap fBitmap; |
| 94 | SkPaint fPaint; |
| 95 | int fTileX, fTileY; // -1 means don't use shader |
| 96 | SkString fName; |
| 97 | enum { N = 300 }; |
| 98 | public: |
| 99 | BitmapBench(SkBitmap::Config c, int tx = -1, int ty = -1) : fTileX(tx), fTileY(ty) { |
| 100 | const int w = 128; |
| 101 | const int h = 128; |
| 102 | SkBitmap bm; |
| 103 | |
| 104 | if (SkBitmap::kIndex8_Config == c) { |
| 105 | bm.setConfig(SkBitmap::kARGB_8888_Config, w, h); |
| 106 | } else { |
| 107 | bm.setConfig(c, w, h); |
| 108 | } |
| 109 | bm.allocPixels(); |
| 110 | bm.eraseColor(0); |
| 111 | |
| 112 | drawIntoBitmap(bm); |
| 113 | |
| 114 | if (SkBitmap::kIndex8_Config == c) { |
| 115 | convertToIndex666(bm, &fBitmap); |
| 116 | } else { |
| 117 | fBitmap = bm; |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | protected: |
| 122 | virtual const char* onGetName() { |
| 123 | fName.set("bitmap"); |
| 124 | if (fTileX >= 0) { |
| 125 | fName.appendf("_%s", gTileName[fTileX]); |
| 126 | if (fTileY != fTileX) { |
| 127 | fName.appendf("_%s", gTileName[fTileY]); |
| 128 | } |
| 129 | } |
| 130 | fName.appendf("_%s", gConfigName[fBitmap.config()]); |
| 131 | return fName.c_str(); |
| 132 | } |
| 133 | |
| 134 | virtual void onDraw(SkCanvas* canvas) { |
| 135 | SkIPoint dim = this->getSize(); |
| 136 | SkRandom rand; |
| 137 | |
| 138 | SkPaint paint(fPaint); |
| 139 | this->setupPaint(&paint); |
| 140 | |
| 141 | const SkBitmap& bitmap = fBitmap; |
| 142 | const SkScalar x0 = SkIntToScalar(-bitmap.width() / 2); |
| 143 | const SkScalar y0 = SkIntToScalar(-bitmap.height() / 2); |
| 144 | |
| 145 | for (int i = 0; i < N; i++) { |
| 146 | SkScalar x = x0 + rand.nextUScalar1() * dim.fX; |
| 147 | SkScalar y = y0 + rand.nextUScalar1() * dim.fY; |
| 148 | canvas->drawBitmap(bitmap, x, y, &paint); |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | private: |
| 153 | typedef SkBenchmark INHERITED; |
| 154 | }; |
| 155 | |
| 156 | static SkBenchmark* Fact0(void*) { return new BitmapBench(SkBitmap::kARGB_8888_Config); } |
| 157 | static SkBenchmark* Fact1(void*) { return new BitmapBench(SkBitmap::kRGB_565_Config); } |
| 158 | static SkBenchmark* Fact2(void*) { return new BitmapBench(SkBitmap::kARGB_4444_Config); } |
| 159 | static SkBenchmark* Fact3(void*) { return new BitmapBench(SkBitmap::kIndex8_Config); } |
| 160 | |
| 161 | static BenchRegistry gReg0(Fact0); |
| 162 | static BenchRegistry gReg1(Fact1); |
| 163 | static BenchRegistry gReg2(Fact2); |
| 164 | static BenchRegistry gReg3(Fact3); |