blob: fad1205211f84729c935e4629501ea0cb5bb3bb8 (
plain)
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
|
// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef SEEN_DISPLAY_GRAYSCALE_H
#define SEEN_DISPLAY_GRAYSCALE_H
/*
* Author:
* Johan Engelen <goejendaagh@zonnet.nl>
*
* Copyright (C) 2011 Author
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
typedef unsigned int guint32;
/**
* Provide methods to calculate grayscale values (e.g. convert rgba value to grayscale rgba value).
*/
namespace Grayscale {
guint32 process(guint32 rgba);
guint32 process(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
unsigned char luminance(unsigned char r, unsigned char g, unsigned char b);
bool activeDesktopIsGrayscale();
};
#endif // !SEEN_DISPLAY_GRAYSCALE_H
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
|
