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 "SkBitmap.h"
10 #include "SkBlurImageFilter.h"
11 #include "SkOffsetImageFilter.h"
12 #include "SkCanvas.h"
13 #include "SkPaint.h"
14 #include "SkRandom.h"
15 #include "SkShader.h"
16 #include "SkString.h"
17
18 #define FILTER_WIDTH_SMALL 32
19 #define FILTER_HEIGHT_SMALL 32
20 #define FILTER_WIDTH_LARGE 256
21 #define FILTER_HEIGHT_LARGE 256
22 #define BLUR_SIGMA_MINI 0.5f
23 #define BLUR_SIGMA_SMALL 1.0f
24 #define BLUR_SIGMA_LARGE 10.0f
25 #define BLUR_SIGMA_HUGE 80.0f
26
27
28 // When 'cropped' is set we apply a cropRect to the blurImageFilter. The crop rect is an inset of
29 // the source's natural dimensions. This is intended to exercise blurring a larger source bitmap
30 // to a smaller destination bitmap.
31
32 // When 'expanded' is set we apply a cropRect to the input of the blurImageFilter (a noOp
33 // offsetImageFilter). The crop rect in this case is an inset of the source's natural dimensions.
34 // An additional crop rect is applied to the blurImageFilter that is just the natural dimensions
35 // of the source (not inset). This is intended to exercise blurring a smaller source bitmap to a
36 // larger destination.
37
make_checkerboard(int width,int height)38 static SkBitmap make_checkerboard(int width, int height) {
39 SkBitmap bm;
40 bm.allocN32Pixels(width, height);
41 SkCanvas canvas(bm);
42 canvas.clear(0x00000000);
43 SkPaint darkPaint;
44 darkPaint.setColor(0xFF804020);
45 SkPaint lightPaint;
46 lightPaint.setColor(0xFF244484);
47 for (int y = 0; y < height; y += 16) {
48 for (int x = 0; x < width; x += 16) {
49 canvas.save();
50 canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
51 canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
52 canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
53 canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
54 canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
55 canvas.restore();
56 }
57 }
58
59 return bm;
60 }
61
62 class BlurImageFilterBench : public Benchmark {
63 public:
BlurImageFilterBench(SkScalar sigmaX,SkScalar sigmaY,bool small,bool cropped,bool expanded)64 BlurImageFilterBench(SkScalar sigmaX, SkScalar sigmaY, bool small, bool cropped,
65 bool expanded)
66 : fIsSmall(small)
67 , fIsCropped(cropped)
68 , fIsExpanded(expanded)
69 , fInitialized(false)
70 , fSigmaX(sigmaX)
71 , fSigmaY(sigmaY) {
72 fName.printf("blur_image_filter_%s%s%s_%.2f_%.2f",
73 fIsSmall ? "small" : "large",
74 fIsCropped ? "_cropped" : "",
75 fIsExpanded ? "_expanded" : "",
76 SkScalarToFloat(sigmaX), SkScalarToFloat(sigmaY));
77 SkASSERT(!fIsExpanded || fIsCropped); // never want expansion w/o cropping
78 }
79
80 protected:
onGetName()81 const char* onGetName() override {
82 return fName.c_str();
83 }
84
onDelayedSetup()85 void onDelayedSetup() override {
86 if (!fInitialized) {
87 fCheckerboard = make_checkerboard(fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE,
88 fIsSmall ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE);
89 fInitialized = true;
90 }
91 }
92
onDraw(int loops,SkCanvas * canvas)93 void onDraw(int loops, SkCanvas* canvas) override {
94 static const SkScalar kX = 0;
95 static const SkScalar kY = 0;
96 const SkRect bmpRect = SkRect::MakeXYWH(kX, kY,
97 SkIntToScalar(fCheckerboard.width()),
98 SkIntToScalar(fCheckerboard.height()));
99 const SkImageFilter::CropRect cropRect(bmpRect.makeInset(10.f, 10.f));
100 const SkImageFilter::CropRect cropRectLarge(bmpRect);
101
102 sk_sp<SkImageFilter> input = fIsExpanded
103 ? SkOffsetImageFilter::Make(0, 0, nullptr, &cropRect)
104 : nullptr;
105
106 const SkImageFilter::CropRect* crop =
107 fIsExpanded ? &cropRectLarge : fIsCropped ? &cropRect : nullptr;
108 SkPaint paint;
109 paint.setImageFilter(SkBlurImageFilter::Make(fSigmaX, fSigmaY, std::move(input), crop));
110
111 for (int i = 0; i < loops; i++) {
112 canvas->drawBitmap(fCheckerboard, kX, kY, &paint);
113 }
114 }
115
116 private:
117
118 SkString fName;
119 bool fIsSmall;
120 bool fIsCropped;
121 bool fIsExpanded;
122 bool fInitialized;
123 SkBitmap fCheckerboard;
124 SkScalar fSigmaX, fSigmaY;
125 typedef Benchmark INHERITED;
126 };
127
128 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, 0, false, false, false);)
129 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, 0, false, false, false);)
130 DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_LARGE, false, false, false);)
131 DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_SMALL, false, false, false);)
132 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, true, false, false);)
133 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, false, false, false);)
134 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, true, false, false);)
135 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false, false, false);)
136 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true, false, false);)
137 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false, false, false);)
138 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, true, false, false);)
139 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, false, false, false);)
140
141 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, 0, false, true, false);)
142 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, 0, false, true, false);)
143 DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_LARGE, false, true, false);)
144 DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_SMALL, false, true, false);)
145 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, true, true, false);)
146 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, false, true, false);)
147 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, true, true, false);)
148 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false, true, false);)
149 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true, true, false);)
150 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false, true, false);)
151 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, true, true, false);)
152 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, false, true, false);)
153
154 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, 0, false, true, true);)
155 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, 0, false, true, true);)
156 DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_LARGE, false, true, true);)
157 DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_SMALL, false, true, true);)
158 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, true, true, true);)
159 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, false, true, true);)
160 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, true, true, true);)
161 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false, true, true);)
162 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true, true, true);)
163 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false, true, true);)
164 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, true, true, true);)
165 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, false, true, true);)
166