source: roaraudio/include/roaraudio/units.h @ 3517:1a3218a3fc5b

Last change on this file since 3517:1a3218a3fc5b was 3517:1a3218a3fc5b, checked in by phi, 14 years ago

updated license headers, FSF moved office

File size: 2.6 KB
Line 
1//units.h:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010
5 *
6 *  This file is part of RoarAudio,
7 *  a cross-platform sound system for both, home and professional use.
8 *  See README for details.
9 *
10 *  This file is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU Lesser General Public License version 3
12 *  as published by the Free Software Foundation.
13 *
14 *  RoarAudio is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU Lesser General Public License for more details.
18 *
19 *  You should have received a copy of the GNU Lesser General Public License
20 *  along with this software; see the file COPYING.  If not, write to
21 *  the Free Software Foundation, 51 Franklin Street, Fifth Floor,
22 *  Boston, MA 02110-1301, USA.
23 *
24 *  NOTE: Even though this file is LGPLed it (may) include GPLed files
25 *  so the license of this file is/may therefore downgraded to GPL.
26 *  See HACKING for details.
27 */
28
29#ifndef _ROARAUDIO_UNITS_H_
30#define _ROARAUDIO_UNITS_H_
31
32/* suffix: */
33#define _MICRO  (1/1000000)
34#define _MILI   (1/1000)
35#define _ONE    1
36#define _KILO   1000
37#define _MEGA   (_KILO*_KILO)
38#define _GIGA   (_KILO*_MEGA)
39#define _TERA   (_KILO*_GIGA)
40
41
42/* Time: */
43#ifndef _SEC
44#if defined(_UNITS_T_BASE_MSEC)
45#define _SEC  1000
46#elif defined(_UNITS_T_BASE_USEC)
47#define _SEC  1000000
48//#elif defined(_UNITS_T_BASE_SEC)
49#else
50#define _SEC  1
51#endif
52#endif
53
54#define _MIN  (60*_SEC)
55#define _HOUR (60*_MIN)
56
57#define _MSEC (_SEC*_MILI)
58#define _USEC (_SEC*_MICRO)
59
60
61/* distance */
62#ifndef _METER
63#if defined(_UNITS_D_BASE_MMETER)
64#define _METER 1000
65#elif defined(_UNITS_D_BASE_UMETER)
66#define _METER 1000000
67//#elif defined(_UNITS_D_BASE_METER)
68#else
69#define _METER 1
70#endif
71#endif
72
73#define _AE    (149597870691LL     *_METER)
74#define _LJ    (9460730472580800LL *_METER)
75#define _PC    (30856804413117847LL*_METER) /* TODO: FIXME: get a more corret value */
76
77
78/* speed */
79#define _MPS                   ((double)_METER/_SEC)
80#define _KMPH                  (_KILO*_METER/_HOUR)
81#define _SPEED_OF_SOUND_AIR    (343. *_MPS)
82#define _SPEED_OF_SOUND_WATER  (1407.*_MPS)
83#define _SPEED_OF_SOUND        _SPEED_OF_SOUND_AIR
84#define _SPEED_OF_LIGHT_VACUUM (299792458LL*_MPS)
85#define _SPEED_OF_LIGHT        _SPEED_OF_LIGHT_VACUUM
86
87
88/* Bits -> Bytes: */
89#define _BIT2BYTE(x) (((int)((x)/8)) + ((x) % 8 ? 1 : 0))
90#define _BYTE2BIT(x) ((x)*8)
91
92#define _8BIT  _BIT2BYTE(8)
93#define _16BIT _BIT2BYTE(16)
94#define _24BIT _BIT2BYTE(24)
95#define _32BIT _BIT2BYTE(32)
96#define _64BIT _BIT2BYTE(64)
97
98
99#endif
100
101//ll
Note: See TracBrowser for help on using the repository browser.