1/*
2 * Copyright 2011 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#include "Benchmark.h"
8#include "SkBlurMask.h"
9#include "SkBlurMaskFilter.h"
10#include "SkCanvas.h"
11#include "SkPaint.h"
12#include "SkRandom.h"
13#include "SkShader.h"
14#include "SkString.h"
15
16#define MINI   0.01f
17#define SMALL   SkIntToScalar(2)
18#define REAL    0.5f
19#define BIG     SkIntToScalar(10)
20#define REALBIG 100.5f
21// The value that produces a sigma of just over 2.
22#define CUTOVER 2.6f
23
24static const char* gStyleName[] = {
25    "normal",
26    "solid",
27    "outer",
28    "inner"
29};
30
31class BlurBench : public Benchmark {
32    SkScalar    fRadius;
33    SkBlurStyle fStyle;
34    uint32_t    fFlags;
35    SkString    fName;
36
37public:
38    BlurBench(SkScalar rad, SkBlurStyle bs, uint32_t flags = 0) {
39        fRadius = rad;
40        fStyle = bs;
41        fFlags = flags;
42        const char* name = rad > 0 ? gStyleName[bs] : "none";
43        const char* quality = flags & SkBlurMaskFilter::kHighQuality_BlurFlag ? "high_quality"
44                                                                              : "low_quality";
45        if (SkScalarFraction(rad) != 0) {
46            fName.printf("blur_%.2f_%s_%s", SkScalarToFloat(rad), name, quality);
47        } else {
48            fName.printf("blur_%d_%s_%s", SkScalarRoundToInt(rad), name, quality);
49        }
50    }
51
52protected:
53    virtual const char* onGetName() {
54        return fName.c_str();
55    }
56
57    virtual void onDraw(int loops, SkCanvas* canvas) {
58        SkPaint paint;
59        this->setupPaint(&paint);
60
61        paint.setAntiAlias(true);
62
63        SkRandom rand;
64        for (int i = 0; i < loops; i++) {
65            SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
66                                      rand.nextUScalar1() * 400);
67            r.offset(fRadius, fRadius);
68
69            if (fRadius > 0) {
70                paint.setMaskFilter(SkBlurMaskFilter::Make(fStyle,
71                                                          SkBlurMask::ConvertRadiusToSigma(fRadius),
72                                                          fFlags));
73            }
74            canvas->drawOval(r, paint);
75        }
76    }
77
78private:
79    typedef Benchmark INHERITED;
80};
81
82DEF_BENCH(return new BlurBench(MINI, kNormal_SkBlurStyle);)
83DEF_BENCH(return new BlurBench(MINI, kSolid_SkBlurStyle);)
84DEF_BENCH(return new BlurBench(MINI, kOuter_SkBlurStyle);)
85DEF_BENCH(return new BlurBench(MINI, kInner_SkBlurStyle);)
86
87DEF_BENCH(return new BlurBench(SMALL, kNormal_SkBlurStyle);)
88DEF_BENCH(return new BlurBench(SMALL, kSolid_SkBlurStyle);)
89DEF_BENCH(return new BlurBench(SMALL, kOuter_SkBlurStyle);)
90DEF_BENCH(return new BlurBench(SMALL, kInner_SkBlurStyle);)
91
92DEF_BENCH(return new BlurBench(BIG, kNormal_SkBlurStyle);)
93DEF_BENCH(return new BlurBench(BIG, kSolid_SkBlurStyle);)
94DEF_BENCH(return new BlurBench(BIG, kOuter_SkBlurStyle);)
95DEF_BENCH(return new BlurBench(BIG, kInner_SkBlurStyle);)
96
97DEF_BENCH(return new BlurBench(REALBIG, kNormal_SkBlurStyle);)
98DEF_BENCH(return new BlurBench(REALBIG, kSolid_SkBlurStyle);)
99DEF_BENCH(return new BlurBench(REALBIG, kOuter_SkBlurStyle);)
100DEF_BENCH(return new BlurBench(REALBIG, kInner_SkBlurStyle);)
101
102DEF_BENCH(return new BlurBench(REAL, kNormal_SkBlurStyle);)
103DEF_BENCH(return new BlurBench(REAL, kSolid_SkBlurStyle);)
104DEF_BENCH(return new BlurBench(REAL, kOuter_SkBlurStyle);)
105DEF_BENCH(return new BlurBench(REAL, kInner_SkBlurStyle);)
106
107DEF_BENCH(return new BlurBench(MINI, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
108
109DEF_BENCH(return new BlurBench(SMALL, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
110
111DEF_BENCH(return new BlurBench(BIG, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
112
113DEF_BENCH(return new BlurBench(REALBIG, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
114
115DEF_BENCH(return new BlurBench(REAL, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
116DEF_BENCH(return new BlurBench(CUTOVER, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
117
118DEF_BENCH(return new BlurBench(0, kNormal_SkBlurStyle);)
119