Home | History | Annotate | Download | only in bench 
      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 "SkBlendModePriv.h"
     10 #include "SkCanvas.h"
     11 #include "SkPaint.h"
     12 #include "SkRandom.h"
     13 #include "SkString.h"
     14 
     15 // Benchmark that draws non-AA rects or AA text with an SkXfermode::Mode.
     16 class XfermodeBench : public Benchmark {
     17 public:
     18     XfermodeBench(SkBlendMode mode, bool aa) : fBlendMode(mode) {
     19         fAA = aa;
     20         fName.printf("blendmode_%s_%s", aa ? "mask" : "rect", SkBlendMode_Name(mode));
     21     }
     22 
     23 protected:
     24     const char* onGetName() override { return fName.c_str(); }
     25 
     26     void onDraw(int loops, SkCanvas* canvas) override {
     27         const char* text = "Hamburgefons";
     28         size_t len = strlen(text);
     29         SkISize size = canvas->getBaseLayerSize();
     30         SkRandom random;
     31         for (int i = 0; i < loops; ++i) {
     32             SkPaint paint;
     33             paint.setBlendMode(fBlendMode);
     34             paint.setColor(random.nextU());
     35             if (fAA) {
     36                 // Draw text to exercise AA code paths.
     37                 paint.setAntiAlias(true);
     38                 paint.setTextSize(random.nextRangeScalar(12, 96));
     39                 SkScalar x = random.nextRangeScalar(0, (SkScalar)size.fWidth),
     40                          y = random.nextRangeScalar(0, (SkScalar)size.fHeight);
     41                 for (int j = 0; j < 1000; ++j) {
     42                     canvas->drawText(text, len, x, y, paint);
     43                 }
     44             } else {
     45                 // Draw rects to exercise non-AA code paths.
     46                 SkScalar w = random.nextRangeScalar(50, 100);
     47                 SkScalar h = random.nextRangeScalar(50, 100);
     48                 SkRect rect = SkRect::MakeXYWH(
     49                     random.nextUScalar1() * (size.fWidth - w),
     50                     random.nextUScalar1() * (size.fHeight - h),
     51                     w,
     52                     h
     53                 );
     54                 for (int j = 0; j < 1000; ++j) {
     55                     canvas->drawRect(rect, paint);
     56                 }
     57             }
     58         }
     59     }
     60 
     61 private:
     62     SkBlendMode fBlendMode;
     63     SkString    fName;
     64     bool        fAA;
     65 
     66     typedef Benchmark INHERITED;
     67 };
     68 
     69 //////////////////////////////////////////////////////////////////////////////
     70 
     71 #define BENCH(...)                                             \
     72     DEF_BENCH( return new XfermodeBench(__VA_ARGS__, true); )  \
     73     DEF_BENCH( return new XfermodeBench(__VA_ARGS__, false); )
     74 
     75 BENCH(SkBlendMode::kClear)
     76 BENCH(SkBlendMode::kSrc)
     77 BENCH(SkBlendMode::kDst)
     78 BENCH(SkBlendMode::kSrcOver)
     79 BENCH(SkBlendMode::kDstOver)
     80 BENCH(SkBlendMode::kSrcIn)
     81 BENCH(SkBlendMode::kDstIn)
     82 BENCH(SkBlendMode::kSrcOut)
     83 BENCH(SkBlendMode::kDstOut)
     84 BENCH(SkBlendMode::kSrcATop)
     85 BENCH(SkBlendMode::kDstATop)
     86 BENCH(SkBlendMode::kXor)
     87 
     88 BENCH(SkBlendMode::kPlus)
     89 BENCH(SkBlendMode::kModulate)
     90 BENCH(SkBlendMode::kScreen)
     91 
     92 BENCH(SkBlendMode::kOverlay)
     93 BENCH(SkBlendMode::kDarken)
     94 BENCH(SkBlendMode::kLighten)
     95 BENCH(SkBlendMode::kColorDodge)
     96 BENCH(SkBlendMode::kColorBurn)
     97 BENCH(SkBlendMode::kHardLight)
     98 BENCH(SkBlendMode::kSoftLight)
     99 BENCH(SkBlendMode::kDifference)
    100 BENCH(SkBlendMode::kExclusion)
    101 BENCH(SkBlendMode::kMultiply)
    102 
    103 BENCH(SkBlendMode::kHue)
    104 BENCH(SkBlendMode::kSaturation)
    105 BENCH(SkBlendMode::kColor)
    106 BENCH(SkBlendMode::kLuminosity)
    107