src/third_party/skia/bench/RectBench.cpp

   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 "Benchmark.h"
   9 #include "SkCanvas.h"
  10 #include "SkCommandLineFlags.h"
  11 #include "SkPaint.h"
  12 #include "SkRandom.h"
  13 #include "SkShader.h"
  14 #include "SkString.h"
  15
  16 DEFINE_double(strokeWidth, -1.0, "If set, use this stroke width in RectBench.");
  17
  18 class RectBench : public Benchmark {
  19 public:
  20     int fShift, fStroke;
  21     enum {
  22         W = 640,
  23         H = 480,
  24         N = 300,
  25     };
  26     SkRect  fRects[N];
  27     SkColor fColors[N];
  28
  29     RectBench(int shift, int stroke = 0)
  30         : fShift(shift)
  31         , fStroke(stroke) {}
  32
  33     SkString fName;
  34     const char* computeName(const char root[]) {
  35         fName.printf("%s_%d", root, fShift);
  36         if (fStroke > 0) {
  37             fName.appendf("_stroke_%d", fStroke);
  38         }
  39         return fName.c_str();
  40     }
  41
  42 protected:
  43     virtual void drawThisRect(SkCanvas* c, const SkRect& r, const SkPaint& p) {
  44         c->drawRect(r, p);
  45     }
  46
  47     virtual const char* onGetName() { return computeName("rects"); }
  48
  49     virtual void onPreDraw() {
  50         SkRandom rand;
  51         const SkScalar offset = SK_Scalar1/3;
  52         for (int i = 0; i < N; i++) {
  53             int x = rand.nextU() % W;
  54             int y = rand.nextU() % H;
  55             int w = rand.nextU() % W;
  56             int h = rand.nextU() % H;
  57             w >>= fShift;
  58             h >>= fShift;
  59             x -= w/2;
  60             y -= h/2;
  61             fRects[i].set(SkIntToScalar(x), SkIntToScalar(y),
  62                           SkIntToScalar(x+w), SkIntToScalar(y+h));
  63             fRects[i].offset(offset, offset);
  64             fColors[i] = rand.nextU() | 0xFF808080;
  65         }
  66     }
  67
  68     virtual void onDraw(const int loops, SkCanvas* canvas) {
  69         SkPaint paint;
  70         if (fStroke > 0) {
  71             paint.setStyle(SkPaint::kStroke_Style);
  72             paint.setStrokeWidth(SkIntToScalar(fStroke));
  73         }
  74         for (int i = 0; i < loops; i++) {
  75             paint.setColor(fColors[i % N]);
  76             this->setupPaint(&paint);
  77             this->drawThisRect(canvas, fRects[i % N], paint);
  78         }
  79     }
  80 private:
  81     typedef Benchmark INHERITED;
  82 };
  83
  84 class SrcModeRectBench : public RectBench {
  85 public:
  86     SrcModeRectBench() : INHERITED(1, 0) {
  87         fMode = SkXfermode::Create(SkXfermode::kSrc_Mode);
  88     }
  89
  90     virtual ~SrcModeRectBench() {
  91         SkSafeUnref(fMode);
  92     }
  93
  94 protected:
  95     virtual void setupPaint(SkPaint* paint) SK_OVERRIDE {
  96         this->INHERITED::setupPaint(paint);
  97         // srcmode is most interesting when we're not opaque
  98         paint->setAlpha(0x80);
  99         paint->setXfermode(fMode);
 100     }
 101
 102     virtual const char* onGetName() SK_OVERRIDE {
 103         fName.set(this->INHERITED::onGetName());
 104         fName.prepend("srcmode_");
 105         return fName.c_str();
 106     }
 107
 108 private:
 109     SkString fName;
 110     SkXfermode* fMode;
 111
 112     typedef RectBench INHERITED;
 113 };
 114
 115 class OvalBench : public RectBench {
 116 public:
 117     OvalBench(int shift, int stroke = 0) : RectBench(shift, stroke) {}
 118 protected:
 119     virtual void drawThisRect(SkCanvas* c, const SkRect& r, const SkPaint& p) {
 120         c->drawOval(r, p);
 121     }
 122     virtual const char* onGetName() { return computeName("ovals"); }
 123 };
 124
 125 class RRectBench : public RectBench {
 126 public:
 127     RRectBench(int shift, int stroke = 0) : RectBench(shift, stroke) {}
 128 protected:
 129     virtual void drawThisRect(SkCanvas* c, const SkRect& r, const SkPaint& p) {
 130         c->drawRoundRect(r, r.width() / 4, r.height() / 4, p);
 131     }
 132     virtual const char* onGetName() { return computeName("rrects"); }
 133 };
 134
 135 class PointsBench : public RectBench {
 136 public:
 137     SkCanvas::PointMode fMode;
 138     const char* fName;
 139
 140     PointsBench(SkCanvas::PointMode mode, const char* name)
 141         : RectBench(2)
 142         , fMode(mode) {
 143         fName = name;
 144     }
 145
 146 protected:
 147     virtual void onDraw(const int loops, SkCanvas* canvas) {
 148         SkScalar gSizes[] = {
 149             SkIntToScalar(7), 0
 150         };
 151         size_t sizes = SK_ARRAY_COUNT(gSizes);
 152
 153         if (FLAGS_strokeWidth >= 0) {
 154             gSizes[0] = (SkScalar)FLAGS_strokeWidth;
 155             sizes = 1;
 156         }
 157
 158         SkPaint paint;
 159         paint.setStrokeCap(SkPaint::kRound_Cap);
 160
 161         for (int loop = 0; loop < loops; loop++) {
 162             for (size_t i = 0; i < sizes; i++) {
 163                 paint.setStrokeWidth(gSizes[i]);
 164                 this->setupPaint(&paint);
 165                 canvas->drawPoints(fMode, N * 2, SkTCast<SkPoint*>(fRects), paint);
 166                 paint.setColor(fColors[i % N]);
 167             }
 168         }
 169     }
 170     virtual const char* onGetName() { return fName; }
 171 };
 172
 173 /*******************************************************************************
 174  * to bench BlitMask [Opaque, Black, color, shader]
 175  *******************************************************************************/
 176
 177 class BlitMaskBench : public RectBench {
 178 public:
 179     enum kMaskType {
 180         kMaskOpaque = 0,
 181         kMaskBlack,
 182         kMaskColor,
 183         KMaskShader
 184     };
 185     SkCanvas::PointMode fMode;
 186     const char* fName;
 187
 188     BlitMaskBench(SkCanvas::PointMode mode,
 189                   BlitMaskBench::kMaskType type, const char* name) :
 190         RectBench(2), fMode(mode), _type(type) {
 191         fName = name;
 192     }
 193
 194 protected:
 195     virtual void onDraw(const int loops, SkCanvas* canvas) {
 196         SkScalar gSizes[] = {
 197             SkIntToScalar(13), SkIntToScalar(24)
 198         };
 199         size_t sizes = SK_ARRAY_COUNT(gSizes);
 200
 201         if (FLAGS_strokeWidth >= 0) {
 202             gSizes[0] = (SkScalar)FLAGS_strokeWidth;
 203             sizes = 1;
 204         }
 205         SkRandom rand;
 206         SkColor color = 0xFF000000;
 207         U8CPU alpha = 0xFF;
 208         SkPaint paint;
 209         paint.setStrokeCap(SkPaint::kRound_Cap);
 210         if (_type == KMaskShader) {
 211             SkBitmap srcBM;
 212             srcBM.allocN32Pixels(10, 1);
 213             srcBM.eraseColor(0xFF00FF00);
 214
 215             SkShader* s;
 216             s  = SkShader::CreateBitmapShader(srcBM, SkShader::kClamp_TileMode,
 217                                               SkShader::kClamp_TileMode);
 218             paint.setShader(s)->unref();
 219         }
 220         for (int loop = 0; loop < loops; loop++) {
 221             for (size_t i = 0; i < sizes; i++) {
 222                 switch (_type) {
 223                     case kMaskOpaque:
 224                         color = fColors[i];
 225                         alpha = 0xFF;
 226                         break;
 227                     case kMaskBlack:
 228                         alpha = 0xFF;
 229                         color = 0xFF000000;
 230                         break;
 231                     case kMaskColor:
 232                         color = fColors[i];
 233                         alpha = rand.nextU() & 255;
 234                         break;
 235                     case KMaskShader:
 236                         break;
 237                 }
 238                 paint.setStrokeWidth(gSizes[i]);
 239                 this->setupPaint(&paint);
 240                 paint.setColor(color);
 241                 paint.setAlpha(alpha);
 242                 canvas->drawPoints(fMode, N * 2, SkTCast<SkPoint*>(fRects), paint);
 243            }
 244         }
 245     }
 246     virtual const char* onGetName() { return fName; }
 247 private:
 248     typedef RectBench INHERITED;
 249     kMaskType _type;
 250 };
 251
 252
 253 DEF_BENCH( return SkNEW_ARGS(RectBench, (1)); )
 254 DEF_BENCH( return SkNEW_ARGS(RectBench, (1, 4)); )
 255 DEF_BENCH( return SkNEW_ARGS(RectBench, (3)); )
 256 DEF_BENCH( return SkNEW_ARGS(RectBench, (3, 4)); )
 257 DEF_BENCH( return SkNEW_ARGS(OvalBench, (1)); )
 258 DEF_BENCH( return SkNEW_ARGS(OvalBench, (3)); )
 259 DEF_BENCH( return SkNEW_ARGS(OvalBench, (1, 4)); )
 260 DEF_BENCH( return SkNEW_ARGS(OvalBench, (3, 4)); )
 261 DEF_BENCH( return SkNEW_ARGS(RRectBench, (1)); )
 262 DEF_BENCH( return SkNEW_ARGS(RRectBench, (1, 4)); )
 263 DEF_BENCH( return SkNEW_ARGS(RRectBench, (3)); )
 264 DEF_BENCH( return SkNEW_ARGS(RRectBench, (3, 4)); )
 265 DEF_BENCH( return SkNEW_ARGS(PointsBench, (SkCanvas::kPoints_PointMode, "points")); )
 266 DEF_BENCH( return SkNEW_ARGS(PointsBench, (SkCanvas::kLines_PointMode, "lines")); )
 267 DEF_BENCH( return SkNEW_ARGS(PointsBench, (SkCanvas::kPolygon_PointMode, "polygon")); )
 268
 269 DEF_BENCH( return SkNEW_ARGS(SrcModeRectBench, ()); )
 270
 271 /* init the blitmask bench
 272  */
 273 DEF_BENCH( return SkNEW_ARGS(BlitMaskBench,
 274                       (SkCanvas::kPoints_PointMode,
 275                       BlitMaskBench::kMaskOpaque, "maskopaque")
 276                       ); )
 277 DEF_BENCH( return SkNEW_ARGS(BlitMaskBench,
 278                       (SkCanvas::kPoints_PointMode,
 279                       BlitMaskBench::kMaskBlack, "maskblack")
 280                       ); )
 281 DEF_BENCH( return SkNEW_ARGS(BlitMaskBench,
 282                       (SkCanvas::kPoints_PointMode,
 283                       BlitMaskBench::kMaskColor, "maskcolor")
 284                       ); )
 285 DEF_BENCH( return SkNEW_ARGS(BlitMaskBench,
 286                      (SkCanvas::kPoints_PointMode,
 287                      BlitMaskBench::KMaskShader, "maskshader")
 288                      ); )