L4Re Operating System Framework
Interface and Usage Documentation
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colors.h
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1
6/*
7 * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>
8 * economic rights: Technische Universität Dresden (Germany)
9 *
10 * This file is part of TUD:OS and distributed under the terms of the
11 * GNU General Public License 2.
12 * Please see the COPYING-GPL-2 file for details.
13 *
14 * As a special exception, you may use this file as part of a free software
15 * library without restriction. Specifically, if other files instantiate
16 * templates or use macros or inline functions from this file, or you compile
17 * this file and link it with other files to produce an executable, this
18 * file does not by itself cause the resulting executable to be covered by
19 * the GNU General Public License. This exception does not however
20 * invalidate any other reasons why the executable file might be covered by
21 * the GNU General Public License.
22 */
23#pragma once
24
25#include <l4/sys/compiler.h>
26
32{
33 unsigned char size;
34 unsigned char shift;
35} __attribute__((packed)) l4re_video_color_component_t;
36
46
48
50l4re_video_bits_per_pixel(l4re_video_pixel_info_t *p) L4_NOTHROW;
51
52/* ************************************************************** */
53/* Implementations */
54
56l4re_video_bits_per_pixel(l4re_video_pixel_info_t *p) L4_NOTHROW
57{
58 return p->r.size + p->b.size + p->g.size + p->a.size;
59}
60
L4 compiler related defines.
#define L4_CV
Define calling convention.
Definition linkage.h:44
#define L4_NOTHROW
Mark a function declaration and definition as never throwing an exception.
Definition compiler.h:188
#define L4_INLINE
L4 Inline function attribute.
Definition compiler.h:62
#define EXTERN_C_BEGIN
Start section with C types and functions.
Definition compiler.h:192
#define EXTERN_C_END
End section with C types and functions.
Definition compiler.h:193
Color component structure.
Definition colors.h:32
unsigned char size
Size in bits.
Definition colors.h:33
unsigned char shift
offset in pixel
Definition colors.h:34
Pixel_info structure.
Definition colors.h:42
l4re_video_color_component_t a
Colors.
Definition colors.h:43
unsigned char bytes_per_pixel
Bytes per pixel.
Definition colors.h:44