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      1 
      2 /*
      3  * Copyright 2013 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 
      9 #include "Benchmark.h"
     10 #include "SkCanvas.h"
     11 #include "SkPaint.h"
     12 #include "SkRandom.h"
     13 #include "SkString.h"
     14 #include "SkXfermode.h"
     15 
     16 // Benchmark that draws non-AA rects with an SkXfermode::Mode
     17 class XfermodeBench : public Benchmark {
     18 public:
     19     XfermodeBench(SkXfermode::Mode mode) {
     20         fXfermode.reset(SkXfermode::Create(mode));
     21         SkASSERT(fXfermode.get() || SkXfermode::kSrcOver_Mode == mode);
     22         fName.printf("Xfermode_%s", SkXfermode::ModeName(mode));
     23     }
     24 
     25     XfermodeBench(SkXfermode* xferMode, const char* name) {
     26         SkASSERT(xferMode);
     27         fXfermode.reset(xferMode);
     28         fName.printf("Xfermode_%s", name);
     29     }
     30 
     31 protected:
     32     virtual const char* onGetName() SK_OVERRIDE { return fName.c_str(); }
     33 
     34     virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
     35         SkISize size = canvas->getDeviceSize();
     36         SkRandom random;
     37         for (int i = 0; i < loops; ++i) {
     38             SkPaint paint;
     39             paint.setXfermode(fXfermode.get());
     40             paint.setColor(random.nextU());
     41             SkScalar w = random.nextRangeScalar(SkIntToScalar(kMinSize), SkIntToScalar(kMaxSize));
     42             SkScalar h = random.nextRangeScalar(SkIntToScalar(kMinSize), SkIntToScalar(kMaxSize));
     43             SkRect rect = SkRect::MakeXYWH(
     44                 random.nextUScalar1() * (size.fWidth - w),
     45                 random.nextUScalar1() * (size.fHeight - h),
     46                 w,
     47                 h
     48             );
     49             canvas->drawRect(rect, paint);
     50         }
     51     }
     52 
     53 private:
     54     enum {
     55         kMinSize = 50,
     56         kMaxSize = 100,
     57     };
     58     SkAutoTUnref<SkXfermode> fXfermode;
     59     SkString fName;
     60 
     61     typedef Benchmark INHERITED;
     62 };
     63 
     64 class XferCreateBench : public Benchmark {
     65 public:
     66     virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
     67         return backend == kNonRendering_Backend;
     68     }
     69 
     70 protected:
     71     virtual const char* onGetName() SK_OVERRIDE { return "xfermode_create"; }
     72 
     73     virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
     74         for (int outer = 0; outer < loops * 10; ++outer) {
     75             for (int i = 0; i <= SkXfermode::kLastMode; ++i) {
     76                 SkXfermode* xfer = SkXfermode::Create(SkXfermode::Mode(i));
     77                 SkSafeUnref(xfer);
     78             }
     79         }
     80     }
     81 
     82 private:
     83     typedef Benchmark INHERITED;
     84 };
     85 
     86 //////////////////////////////////////////////////////////////////////////////
     87 
     88 #define CONCAT_I(x, y) x ## y
     89 #define CONCAT(x, y) CONCAT_I(x, y) // allow for macro expansion
     90 #define BENCH(...) \
     91     DEF_BENCH( return new XfermodeBench(__VA_ARGS__); );\
     92 
     93 
     94 BENCH(SkXfermode::kClear_Mode)
     95 BENCH(SkXfermode::kSrc_Mode)
     96 BENCH(SkXfermode::kDst_Mode)
     97 BENCH(SkXfermode::kSrcOver_Mode)
     98 BENCH(SkXfermode::kDstOver_Mode)
     99 BENCH(SkXfermode::kSrcIn_Mode)
    100 BENCH(SkXfermode::kDstIn_Mode)
    101 BENCH(SkXfermode::kSrcOut_Mode)
    102 BENCH(SkXfermode::kDstOut_Mode)
    103 BENCH(SkXfermode::kSrcATop_Mode)
    104 BENCH(SkXfermode::kDstATop_Mode)
    105 BENCH(SkXfermode::kXor_Mode)
    106 
    107 BENCH(SkXfermode::kPlus_Mode)
    108 BENCH(SkXfermode::kModulate_Mode)
    109 BENCH(SkXfermode::kScreen_Mode)
    110 
    111 BENCH(SkXfermode::kOverlay_Mode)
    112 BENCH(SkXfermode::kDarken_Mode)
    113 BENCH(SkXfermode::kLighten_Mode)
    114 BENCH(SkXfermode::kColorDodge_Mode)
    115 BENCH(SkXfermode::kColorBurn_Mode)
    116 BENCH(SkXfermode::kHardLight_Mode)
    117 BENCH(SkXfermode::kSoftLight_Mode)
    118 BENCH(SkXfermode::kDifference_Mode)
    119 BENCH(SkXfermode::kExclusion_Mode)
    120 BENCH(SkXfermode::kMultiply_Mode)
    121 
    122 BENCH(SkXfermode::kHue_Mode)
    123 BENCH(SkXfermode::kSaturation_Mode)
    124 BENCH(SkXfermode::kColor_Mode)
    125 BENCH(SkXfermode::kLuminosity_Mode)
    126 
    127 DEF_BENCH(return new XferCreateBench;)
    128