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 "SkBlurMask.h"
10 #include "SkCanvas.h"
11 #include "SkPaint.h"
12 #include "SkRandom.h"
13 #include "SkShader.h"
14 #include "SkString.h"
15 
16 class BitmapScaleBench: public Benchmark {
17     int         fLoopCount;
18     int         fInputSize;
19     int         fOutputSize;
20     SkString    fName;
21 
22 public:
BitmapScaleBench(int is,int os)23     BitmapScaleBench( int is, int os)  {
24         fInputSize = is;
25         fOutputSize = os;
26 
27         fLoopCount = 20;
28     }
29 
30 protected:
31 
32     SkBitmap fInputBitmap, fOutputBitmap;
33     SkMatrix fMatrix;
34 
onGetName()35     const char* onGetName() override {
36         return fName.c_str();
37     }
38 
inputSize() const39     int inputSize() const {
40         return fInputSize;
41     }
42 
outputSize() const43     int outputSize() const {
44         return fOutputSize;
45     }
46 
scale() const47     float scale() const {
48         return float(outputSize())/inputSize();
49     }
50 
onGetSize()51     SkIPoint onGetSize() override {
52         return SkIPoint::Make( fOutputSize, fOutputSize );
53     }
54 
setName(const char * name)55     void setName(const char * name) {
56         fName.printf( "bitmap_scale_%s_%d_%d", name, fInputSize, fOutputSize );
57     }
58 
onDelayedSetup()59     void onDelayedSetup() override {
60         fInputBitmap.allocN32Pixels(fInputSize, fInputSize, true);
61         fInputBitmap.eraseColor(SK_ColorWHITE);
62 
63         fOutputBitmap.allocN32Pixels(fOutputSize, fOutputSize, true);
64 
65         fMatrix.setScale( scale(), scale() );
66     }
67 
onDraw(int loops,SkCanvas *)68     void onDraw(int loops, SkCanvas*) override {
69         SkPaint paint;
70         this->setupPaint(&paint);
71 
72         preBenchSetup();
73 
74         for (int i = 0; i < loops; i++) {
75             doScaleImage();
76         }
77     }
78 
79     virtual void doScaleImage() = 0;
preBenchSetup()80     virtual void preBenchSetup() {}
81 private:
82     typedef Benchmark INHERITED;
83 };
84 
85 class BitmapFilterScaleBench: public BitmapScaleBench {
86  public:
BitmapFilterScaleBench(int is,int os)87     BitmapFilterScaleBench( int is, int os) : INHERITED(is, os) {
88         setName( "filter" );
89     }
90 protected:
doScaleImage()91     void doScaleImage() override {
92         SkCanvas canvas( fOutputBitmap );
93         SkPaint paint;
94 
95         paint.setFilterQuality(kHigh_SkFilterQuality);
96         fInputBitmap.notifyPixelsChanged();
97         canvas.concat(fMatrix);
98         canvas.drawBitmap(fInputBitmap, 0, 0, &paint );
99     }
100 private:
101     typedef BitmapScaleBench INHERITED;
102 };
103 
104 DEF_BENCH(return new BitmapFilterScaleBench(10, 90);)
105 DEF_BENCH(return new BitmapFilterScaleBench(30, 90);)
106 DEF_BENCH(return new BitmapFilterScaleBench(80, 90);)
107 DEF_BENCH(return new BitmapFilterScaleBench(90, 90);)
108 DEF_BENCH(return new BitmapFilterScaleBench(90, 80);)
109 DEF_BENCH(return new BitmapFilterScaleBench(90, 30);)
110 DEF_BENCH(return new BitmapFilterScaleBench(90, 10);)
111 DEF_BENCH(return new BitmapFilterScaleBench(256, 64);)
112 DEF_BENCH(return new BitmapFilterScaleBench(64, 256);)
113 
114 ///////////////////////////////////////////////////////////////////////////////////////////////
115 
116 #include "SkBitmapScaler.h"
117 
118 class PixmapScalerBench: public Benchmark {
119     SkBitmapScaler::ResizeMethod    fMethod;
120     SkString                        fName;
121     SkBitmap                        fSrc, fDst;
122 
123 public:
PixmapScalerBench(SkBitmapScaler::ResizeMethod method,const char suffix[])124     PixmapScalerBench(SkBitmapScaler::ResizeMethod method, const char suffix[]) : fMethod(method) {
125         fName.printf("pixmapscaler_%s", suffix);
126     }
127 
128 protected:
onGetName()129     const char* onGetName() override {
130         return fName.c_str();
131     }
132 
onGetSize()133     SkIPoint onGetSize() override { return{ 100, 100 }; }
134 
isSuitableFor(Backend backend)135     bool isSuitableFor(Backend backend) override {
136         return backend == kNonRendering_Backend;
137     }
138 
onDelayedSetup()139     void onDelayedSetup() override {
140         fSrc.allocN32Pixels(640, 480);
141         fSrc.eraseColor(SK_ColorWHITE);
142         fDst.allocN32Pixels(300, 250);
143     }
144 
onDraw(int loops,SkCanvas *)145     void onDraw(int loops, SkCanvas*) override {
146         SkPixmap src, dst;
147         fSrc.peekPixels(&src);
148         fDst.peekPixels(&dst);
149         for (int i = 0; i < loops * 16; i++) {
150             SkBitmapScaler::Resize(dst, src, fMethod);
151         }
152     }
153 
154 private:
155     typedef Benchmark INHERITED;
156 };
157 DEF_BENCH( return new PixmapScalerBench(SkBitmapScaler::RESIZE_LANCZOS3, "lanczos");  )
158 DEF_BENCH( return new PixmapScalerBench(SkBitmapScaler::RESIZE_MITCHELL, "mitchell"); )
159 DEF_BENCH( return new PixmapScalerBench(SkBitmapScaler::RESIZE_HAMMING,  "hamming");  )
160 DEF_BENCH( return new PixmapScalerBench(SkBitmapScaler::RESIZE_TRIANGLE, "triangle"); )
161 DEF_BENCH( return new PixmapScalerBench(SkBitmapScaler::RESIZE_BOX,      "box");      )
162