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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
/*
* 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 "sk_tool_utils.h"
#include "Resources.h"
#include "SkGradientShader.h"
#include "SkStream.h"
#include "SkTypeface.h"
static void setTypeface(SkPaint* paint, const char name[], SkFontStyle style) {
sk_tool_utils::set_portable_typeface(paint, name, style);
}
static SkSize computeSize(const SkBitmap& bm, const SkMatrix& mat) {
SkRect bounds = SkRect::MakeWH(SkIntToScalar(bm.width()),
SkIntToScalar(bm.height()));
mat.mapRect(&bounds);
return SkSize::Make(bounds.width(), bounds.height());
}
static void draw_cell(SkCanvas* canvas, const SkBitmap& bm, const SkMatrix& mat, SkScalar dx,
SkFilterQuality lvl) {
SkPaint paint;
paint.setFilterQuality(lvl);
SkAutoCanvasRestore acr(canvas, true);
canvas->translate(dx, 0);
canvas->concat(mat);
canvas->drawBitmap(bm, 0, 0, &paint);
}
static void draw_row(SkCanvas* canvas, const SkBitmap& bm, const SkMatrix& mat, SkScalar dx) {
draw_cell(canvas, bm, mat, 0 * dx, kNone_SkFilterQuality);
draw_cell(canvas, bm, mat, 1 * dx, kLow_SkFilterQuality);
draw_cell(canvas, bm, mat, 2 * dx, kMedium_SkFilterQuality);
draw_cell(canvas, bm, mat, 3 * dx, kHigh_SkFilterQuality);
}
class FilterBitmapGM : public skiagm::GM {
void onOnceBeforeDraw() override {
this->makeBitmap();
SkScalar cx = SkScalarHalf(fBM.width());
SkScalar cy = SkScalarHalf(fBM.height());
SkScalar scale = this->getScale();
// these two matrices use a scale factor configured by the subclass
fMatrix[0].setScale(scale, scale);
fMatrix[1].setRotate(30, cx, cy); fMatrix[1].postScale(scale, scale);
// up/down scaling mix
fMatrix[2].setScale(0.7f, 1.05f);
}
public:
SkBitmap fBM;
SkMatrix fMatrix[3];
SkString fName;
FilterBitmapGM()
{
this->setBGColor(sk_tool_utils::color_to_565(0xFFDDDDDD));
}
protected:
SkString onShortName() override {
return fName;
}
SkISize onISize() override {
return SkISize::Make(1024, 768);
}
virtual void makeBitmap() = 0;
virtual SkScalar getScale() = 0;
void onDraw(SkCanvas* canvas) override {
canvas->translate(10, 10);
for (size_t i = 0; i < SK_ARRAY_COUNT(fMatrix); ++i) {
SkSize size = computeSize(fBM, fMatrix[i]);
size.fWidth += 20;
size.fHeight += 20;
draw_row(canvas, fBM, fMatrix[i], size.fWidth);
canvas->translate(0, size.fHeight);
}
}
private:
typedef skiagm::GM INHERITED;
};
class FilterBitmapTextGM: public FilterBitmapGM {
public:
FilterBitmapTextGM(float textSize)
: fTextSize(textSize)
{
fName.printf("filterbitmap_text_%.2fpt", fTextSize);
}
protected:
float fTextSize;
SkScalar getScale() override {
return 32.f/fTextSize;
}
void makeBitmap() override {
fBM.allocN32Pixels(int(fTextSize * 8), int(fTextSize * 6));
SkCanvas canvas(fBM);
canvas.drawColor(SK_ColorWHITE);
SkPaint paint;
paint.setAntiAlias(true);
paint.setSubpixelText(true);
paint.setTextSize(fTextSize);
setTypeface(&paint, "serif", SkFontStyle::Normal());
canvas.drawString("Hamburgefons", fTextSize/2, 1.2f*fTextSize, paint);
setTypeface(&paint, "serif", SkFontStyle::Bold());
canvas.drawString("Hamburgefons", fTextSize/2, 2.4f*fTextSize, paint);
setTypeface(&paint, "serif", SkFontStyle::Italic());
canvas.drawString("Hamburgefons", fTextSize/2, 3.6f*fTextSize, paint);
setTypeface(&paint, "serif", SkFontStyle::BoldItalic());
canvas.drawString("Hamburgefons", fTextSize/2, 4.8f*fTextSize, paint);
}
private:
typedef FilterBitmapGM INHERITED;
};
class FilterBitmapCheckerboardGM: public FilterBitmapGM {
public:
FilterBitmapCheckerboardGM(int size, int num_checks, bool convertToG8 = false)
: fSize(size), fNumChecks(num_checks), fConvertToG8(convertToG8)
{
fName.printf("filterbitmap_checkerboard_%d_%d%s",
fSize, fNumChecks, convertToG8 ? "_g8" : "");
}
protected:
int fSize;
int fNumChecks;
SkScalar getScale() override {
return 192.f/fSize;
}
void makeBitmap() override {
fBM.allocN32Pixels(fSize, fSize);
for (int y = 0; y < fSize; y ++) {
for (int x = 0; x < fSize; x ++) {
SkPMColor* s = fBM.getAddr32(x, y);
int cx = (x * fNumChecks) / fSize;
int cy = (y * fNumChecks) / fSize;
if ((cx+cy)%2) {
*s = 0xFFFFFFFF;
} else {
*s = 0xFF000000;
}
}
}
if (fConvertToG8) {
SkBitmap tmp;
sk_tool_utils::copy_to_g8(&tmp, fBM);
fBM = tmp;
}
}
private:
const bool fConvertToG8;
typedef FilterBitmapGM INHERITED;
};
class FilterBitmapImageGM: public FilterBitmapGM {
public:
FilterBitmapImageGM(const char filename[], bool convertToG8 = false)
: fFilename(filename), fConvertToG8(convertToG8)
{
fName.printf("filterbitmap_image_%s%s", filename, convertToG8 ? "_g8" : "");
}
protected:
SkString fFilename;
int fSize;
SkScalar getScale() override {
return 192.f/fSize;
}
void makeBitmap() override {
SkString resource = SkStringPrintf("images/%s", fFilename.c_str());
if (!GetResourceAsBitmap(resource.c_str(), &fBM)) {
fBM.allocN32Pixels(1, 1);
fBM.eraseARGB(255, 255, 0 , 0); // red == bad
}
fSize = fBM.height();
if (fConvertToG8) {
SkBitmap tmp;
sk_tool_utils::copy_to_g8(&tmp, fBM);
fBM = tmp;
}
}
private:
const bool fConvertToG8;
typedef FilterBitmapGM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return new FilterBitmapTextGM(3); )
DEF_GM( return new FilterBitmapTextGM(7); )
DEF_GM( return new FilterBitmapTextGM(10); )
DEF_GM( return new FilterBitmapCheckerboardGM(4,4); )
DEF_GM( return new FilterBitmapCheckerboardGM(32,32); )
DEF_GM( return new FilterBitmapCheckerboardGM(32,32, true); )
DEF_GM( return new FilterBitmapCheckerboardGM(32,8); )
DEF_GM( return new FilterBitmapCheckerboardGM(32,2); )
DEF_GM( return new FilterBitmapCheckerboardGM(192,192); )
DEF_GM( return new FilterBitmapImageGM("mandrill_16.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_32.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_64.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_64.png", true); )
DEF_GM( return new FilterBitmapImageGM("mandrill_128.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_256.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_512.png"); )
DEF_GM( return new FilterBitmapImageGM("color_wheel.png"); )
|
