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
|
/*
* Copyright 2017 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 "SkCanvas.h"
#include "SkImage.h"
#include "Resources.h"
#include "SkColorFilter.h"
DEF_SIMPLE_GM(srgb_colorfilter, canvas, 512, 256*3) {
auto img = GetResourceAsImage("images/mandrill_256.png");
const float array[] = {
1, 0, 0, 0, 0,
0, 1, 0, 0, 0,
0, 0, 1, 0, 0,
-1, 0, 0, 1, 0,
};
auto cf0 = SkColorFilter::MakeMatrixFilterRowMajor255(array);
auto cf1 = SkColorFilter::MakeLinearToSRGBGamma();
auto cf2 = SkColorFilter::MakeSRGBToLinearGamma();
SkPaint p;
p.setColorFilter(cf0);
canvas->drawImage(img, 0, 0, nullptr);
canvas->drawImage(img, 256, 0, &p);
p.setColorFilter(cf1);
canvas->drawImage(img, 0, 256, &p);
p.setColorFilter(SkColorFilter::MakeComposeFilter(cf1, cf0));
canvas->drawImage(img, 256, 256, &p);
p.setColorFilter(cf2);
canvas->drawImage(img, 0, 512, &p);
p.setColorFilter(SkColorFilter::MakeComposeFilter(cf2, cf0));
canvas->drawImage(img, 256, 512, &p);
}
|
