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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*
* 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 "SkBlurMask.h"
#include "SkBlurMaskFilter.h"
class BlursGM : public skiagm::GM {
public:
BlursGM() {
this->setBGColor(0xFFDDDDDD);
}
protected:
SkString onShortName() override {
return SkString("blurs");
}
SkISize onISize() override {
return SkISize::Make(700, 500);
}
void onDraw(SkCanvas* canvas) override {
SkBlurStyle NONE = SkBlurStyle(-999);
static const struct {
SkBlurStyle fStyle;
int fCx, fCy;
} gRecs[] = {
{ NONE, 0, 0 },
{ kInner_SkBlurStyle, -1, 0 },
{ kNormal_SkBlurStyle, 0, 1 },
{ kSolid_SkBlurStyle, 0, -1 },
{ kOuter_SkBlurStyle, 1, 0 },
};
SkPaint paint;
paint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&paint);
paint.setTextSize(SkIntToScalar(25));
canvas->translate(SkIntToScalar(-40), SkIntToScalar(0));
SkBlurMaskFilter::BlurFlags flags = SkBlurMaskFilter::kNone_BlurFlag;
for (int j = 0; j < 2; j++) {
canvas->save();
paint.setColor(SK_ColorBLUE);
for (size_t i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
if (gRecs[i].fStyle != NONE) {
SkMaskFilter* mf = SkBlurMaskFilter::Create(gRecs[i].fStyle,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(20)),
flags);
paint.setMaskFilter(mf)->unref();
} else {
paint.setMaskFilter(NULL);
}
canvas->drawCircle(SkIntToScalar(200 + gRecs[i].fCx*100),
SkIntToScalar(200 + gRecs[i].fCy*100),
SkIntToScalar(50),
paint);
}
// draw text
{
SkMaskFilter* mf = SkBlurMaskFilter::Create(kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(4)),
flags);
paint.setMaskFilter(mf)->unref();
SkScalar x = SkIntToScalar(70);
SkScalar y = SkIntToScalar(400);
paint.setColor(SK_ColorBLACK);
canvas->drawText("Hamburgefons Style", 18, x, y, paint);
canvas->drawText("Hamburgefons Style", 18,
x, y + SkIntToScalar(50), paint);
paint.setMaskFilter(NULL);
paint.setColor(SK_ColorWHITE);
x -= SkIntToScalar(2);
y -= SkIntToScalar(2);
canvas->drawText("Hamburgefons Style", 18, x, y, paint);
}
canvas->restore();
flags = SkBlurMaskFilter::kHighQuality_BlurFlag;
canvas->translate(SkIntToScalar(350), SkIntToScalar(0));
}
}
private:
typedef skiagm::GM INHERITED;
};
DEF_GM( return new BlursGM; )
//////////////////////////////////////////////////////////////////////////////////////////////
// exercise a special-case of blurs, which is two nested rects. These are drawn specially,
// and possibly cached.
//
// in particular, we want to notice that the 2nd rect draws slightly differently, since it
// is translated a fractional amount.
//
class Blur2RectsGM : public skiagm::GM {
public:
SkString onShortName() override {
return SkString("blur2rects");
}
SkISize onISize() override {
return SkISize::Make(700, 500);
}
void onDraw(SkCanvas* canvas) override {
SkPaint paint;
paint.setMaskFilter(SkBlurMaskFilter::Create(kNormal_SkBlurStyle,
2.3f))->unref();
SkRect outer = SkRect::MakeXYWH(10.125f, 10.125f, 100.125f, 100);
SkRect inner = SkRect::MakeXYWH(20.25f, 20.125f, 80, 80);
SkPath path;
path.addRect(outer, SkPath::kCW_Direction);
path.addRect(inner, SkPath::kCCW_Direction);
canvas->drawPath(path, paint);
// important to translate by a factional amount to exercise a different "phase"
// of the same path w.r.t. the pixel grid
SkScalar dx = SkScalarRoundToScalar(path.getBounds().width()) + 14 + 0.25f;
canvas->translate(dx, 0);
canvas->drawPath(path, paint);
}
};
DEF_GM( return new Blur2RectsGM; )
class Blur2RectsNonNinePatchGM : public skiagm::GM {
public:
SkString onShortName() override {
return SkString("blur2rectsnonninepatch");
}
SkISize onISize() override {
return SkISize::Make(700, 500);
}
void onDraw(SkCanvas* canvas) override {
SkPaint paint;
paint.setMaskFilter(SkBlurMaskFilter::Create(kNormal_SkBlurStyle,
4.3f))->unref();
SkRect outer = SkRect::MakeXYWH(10, 110, 100, 100);
SkRect inner = SkRect::MakeXYWH(50, 150, 10, 10);
SkPath path;
path.addRect(outer, SkPath::kCW_Direction);
path.addRect(inner, SkPath::kCW_Direction);
canvas->drawPath(path, paint);
SkScalar dx = SkScalarRoundToScalar(path.getBounds().width()) + 40 + 0.25f;
canvas->translate(dx, 0);
canvas->drawPath(path, paint);
// Translate to outside of clip bounds.
canvas->translate(-dx, 0);
canvas->translate(-30, -150);
canvas->drawPath(path, paint);
}
};
DEF_GM( return new Blur2RectsNonNinePatchGM; )
|
