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      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 "SkBlurMask.h"
     10 #include "SkBlurMaskFilter.h"
     11 #include "SkCanvas.h"
     12 #include "SkPaint.h"
     13 #include "SkRandom.h"
     14 #include "SkShader.h"
     15 #include "SkString.h"
     16 
     17 #define SMALL   SkIntToScalar(2)
     18 #define REAL    1.5f
     19 #define BIG     SkIntToScalar(10)
     20 #define REALBIG 100.5f
     21 
     22 static const char* gStyleName[] = {
     23     "normal",
     24     "solid",
     25     "outer",
     26     "inner"
     27 };
     28 
     29 class BlurBench : public Benchmark {
     30     SkScalar    fRadius;
     31     SkBlurStyle fStyle;
     32     uint32_t    fFlags;
     33     SkString    fName;
     34 
     35 public:
     36     BlurBench(SkScalar rad, SkBlurStyle bs, uint32_t flags = 0) {
     37         fRadius = rad;
     38         fStyle = bs;
     39         fFlags = flags;
     40         const char* name = rad > 0 ? gStyleName[bs] : "none";
     41         const char* quality = flags & SkBlurMaskFilter::kHighQuality_BlurFlag ? "high_quality"
     42                                                                               : "low_quality";
     43         if (SkScalarFraction(rad) != 0) {
     44             fName.printf("blur_%.2f_%s_%s", SkScalarToFloat(rad), name, quality);
     45         } else {
     46             fName.printf("blur_%d_%s_%s", SkScalarRoundToInt(rad), name, quality);
     47         }
     48     }
     49 
     50 protected:
     51     virtual const char* onGetName() {
     52         return fName.c_str();
     53     }
     54 
     55     virtual void onDraw(const int loops, SkCanvas* canvas) {
     56         SkPaint paint;
     57         this->setupPaint(&paint);
     58 
     59         paint.setAntiAlias(true);
     60 
     61         SkRandom rand;
     62         for (int i = 0; i < loops; i++) {
     63             SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
     64                                       rand.nextUScalar1() * 400);
     65             r.offset(fRadius, fRadius);
     66 
     67             if (fRadius > 0) {
     68                 SkMaskFilter* mf = SkBlurMaskFilter::Create(fStyle,
     69                                             SkBlurMask::ConvertRadiusToSigma(fRadius),
     70                                             fFlags);
     71                 paint.setMaskFilter(mf)->unref();
     72             }
     73             canvas->drawOval(r, paint);
     74         }
     75     }
     76 
     77 private:
     78     typedef Benchmark INHERITED;
     79 };
     80 
     81 DEF_BENCH(return new BlurBench(SMALL, kNormal_SkBlurStyle);)
     82 DEF_BENCH(return new BlurBench(SMALL, kSolid_SkBlurStyle);)
     83 DEF_BENCH(return new BlurBench(SMALL, kOuter_SkBlurStyle);)
     84 DEF_BENCH(return new BlurBench(SMALL, kInner_SkBlurStyle);)
     85 
     86 DEF_BENCH(return new BlurBench(BIG, kNormal_SkBlurStyle);)
     87 DEF_BENCH(return new BlurBench(BIG, kSolid_SkBlurStyle);)
     88 DEF_BENCH(return new BlurBench(BIG, kOuter_SkBlurStyle);)
     89 DEF_BENCH(return new BlurBench(BIG, kInner_SkBlurStyle);)
     90 
     91 DEF_BENCH(return new BlurBench(REALBIG, kNormal_SkBlurStyle);)
     92 DEF_BENCH(return new BlurBench(REALBIG, kSolid_SkBlurStyle);)
     93 DEF_BENCH(return new BlurBench(REALBIG, kOuter_SkBlurStyle);)
     94 DEF_BENCH(return new BlurBench(REALBIG, kInner_SkBlurStyle);)
     95 
     96 DEF_BENCH(return new BlurBench(REAL, kNormal_SkBlurStyle);)
     97 DEF_BENCH(return new BlurBench(REAL, kSolid_SkBlurStyle);)
     98 DEF_BENCH(return new BlurBench(REAL, kOuter_SkBlurStyle);)
     99 DEF_BENCH(return new BlurBench(REAL, kInner_SkBlurStyle);)
    100 
    101 DEF_BENCH(return new BlurBench(SMALL, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
    102 
    103 DEF_BENCH(return new BlurBench(BIG, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
    104 
    105 DEF_BENCH(return new BlurBench(REALBIG, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
    106 
    107 DEF_BENCH(return new BlurBench(REAL, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
    108 
    109 DEF_BENCH(return new BlurBench(0, kNormal_SkBlurStyle);)
    110