1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkBlurImageFilter.h"
#include "SkRandom.h"
// TODO deprecate imageblur
#define WIDTH 500
#define HEIGHT 500
static const float kBlurSigmas[] = {
0.0, 0.3f, 0.5f, 2.0f, 32.0f, 80.0f };
const char* kTestStrings[] = {
"The quick`~",
"brown fox[]",
"jumped over",
"the lazy@#$",
"dog.{}!%^&",
"*()+=-\\'\"/",
};
namespace skiagm {
class BlurImageFilter : public GM {
public:
BlurImageFilter() {
this->setBGColor(0xFFFFFFFF);
fName.printf("imageblur2");
}
protected:
virtual uint32_t onGetFlags() const SK_OVERRIDE {
return kSkipTiled_Flag;
}
virtual SkString onShortName() {
return fName;
}
virtual SkISize onISize() {
return SkISize::Make(WIDTH, HEIGHT);
}
virtual void onDraw(SkCanvas* canvas) {
const int sigmaCount = SK_ARRAY_COUNT(kBlurSigmas);
const int testStringCount = SK_ARRAY_COUNT(kTestStrings);
SkScalar dx = WIDTH / sigmaCount;
SkScalar dy = HEIGHT / sigmaCount;
const SkScalar textSize = 12;
for (int x = 0; x < sigmaCount; x++) {
SkScalar sigmaX = kBlurSigmas[x];
for (int y = 0; y < sigmaCount; y++) {
SkScalar sigmaY = kBlurSigmas[y];
SkPaint paint;
paint.setImageFilter(SkBlurImageFilter::Create(sigmaX, sigmaY))->unref();
canvas->saveLayer(NULL, &paint);
SkRandom rand;
SkPaint textPaint;
textPaint.setAntiAlias(false);
textPaint.setColor(rand.nextBits(24) | 0xFF000000);
textPaint.setTextSize(textSize);
for (int i = 0; i < testStringCount; i++) {
canvas->drawText(kTestStrings[i],
strlen(kTestStrings[i]),
SkIntToScalar(x * dx),
SkIntToScalar(y * dy + textSize * i + textSize),
textPaint);
}
canvas->restore();
}
}
}
private:
SkString fName;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new BlurImageFilter; }
static GMRegistry reg(MyFactory);
}
|
