L4Re - L4 Runtime Environment
colors.h
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1 
6 /*
7  * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>
8  * economic rights: Technische Universit├Ąt 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 
42 {
44  unsigned char bytes_per_pixel;
46 
48 
49 L4_INLINE L4_CV int
50 l4re_video_bits_per_pixel(l4re_video_pixel_info_t *p) L4_NOTHROW;
51 
52 /* ************************************************************** */
53 /* Implementations */
54 
55 L4_INLINE L4_CV int
56 l4re_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 
struct l4re_video_pixel_info_t l4re_video_pixel_info_t
Pixel_info structure.
#define EXTERN_C_END
End section with C types and functions.
Definition: compiler.h:187
Color component structure.
Definition: colors.h:31
L4 compiler related defines.
Pixel_info structure.
Definition: colors.h:41
l4re_video_color_component_t a
Colors.
Definition: colors.h:43
#define EXTERN_C_BEGIN
Start section with C types and functions.
Definition: compiler.h:186
#define L4_CV
Define calling convention.
Definition: linkage.h:44
unsigned char bytes_per_pixel
Bytes per pixel.
Definition: colors.h:44
unsigned char size
Size in bits.
Definition: colors.h:33
struct l4re_video_color_component_t l4re_video_color_component_t
Color component structure.
unsigned char shift
offset in pixel
Definition: colors.h:34
#define L4_NOTHROW
Mark a function declaration and definition as never throwing an exception.
Definition: compiler.h:185