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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:
XfermodeBench(SkXfermode::Mode mode)19     XfermodeBench(SkXfermode::Mode mode) {
20         fXfermode.reset(SkXfermode::Create(mode));
21         SkASSERT(NULL != fXfermode.get() || SkXfermode::kSrcOver_Mode == mode);
22         fName.printf("Xfermode_%s", SkXfermode::ModeName(mode));
23     }
24 
XfermodeBench(SkXfermode * xferMode,const char * name)25     XfermodeBench(SkXfermode* xferMode, const char* name) {
26         SkASSERT(NULL != xferMode);
27         fXfermode.reset(xferMode);
28         fName.printf("Xfermode_%s", name);
29     }
30 
31 protected:
onGetName()32     virtual const char* onGetName() SK_OVERRIDE { return fName.c_str(); }
33 
onDraw(const int loops,SkCanvas * canvas)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:
isSuitableFor(Backend backend)66     virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
67         return backend == kNonRendering_Backend;
68     }
69 
70 protected:
onGetName()71     virtual const char* onGetName() SK_OVERRIDE { return "xfermode_create"; }
72 
onDraw(const int loops,SkCanvas * canvas)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