| 1 | //units.h: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
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| 5 | * |
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| 6 | * This file is part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU Lesser General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * RoarAudio is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU Lesser General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU Lesser General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | * NOTE: Even though this file is LGPLed it (may) include GPLed files |
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| 24 | * so the license of this file is/may therefore downgraded to GPL. |
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| 25 | * See HACKING for details. |
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| 26 | */ |
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| 27 | |
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| 28 | #ifndef _ROARAUDIO_UNITS_H_ |
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| 29 | #define _ROARAUDIO_UNITS_H_ |
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| 30 | |
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| 31 | /* suffix: */ |
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| 32 | #define _MICRO (1/1000000) |
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| 33 | #define _MILI (1/1000) |
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| 34 | #define _ONE 1 |
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| 35 | #define _KILO 1000 |
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| 36 | #define _MEGA (_KILO*_KILO) |
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| 37 | #define _GIGA (_KILO*_MEGA) |
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| 38 | #define _TERA (_KILO*_GIGA) |
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| 39 | |
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| 40 | |
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| 41 | /* Time: */ |
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| 42 | #ifndef _SEC |
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| 43 | #if defined(_UNITS_T_BASE_MSEC) |
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| 44 | #define _SEC 1000 |
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| 45 | #elif defined(_UNITS_T_BASE_USEC) |
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| 46 | #define _SEC 1000000 |
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| 47 | //#elif defined(_UNITS_T_BASE_SEC) |
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| 48 | #else |
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| 49 | #define _SEC 1 |
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| 50 | #endif |
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| 51 | #endif |
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| 52 | |
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| 53 | #define _MIN (60*_SEC) |
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| 54 | #define _HOUR (60*_MIN) |
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| 55 | |
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| 56 | #define _MSEC (_SEC*_MILI) |
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| 57 | #define _USEC (_SEC*_MICRO) |
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| 58 | |
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| 59 | |
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| 60 | /* distance */ |
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| 61 | #ifndef _METER |
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| 62 | #if defined(_UNITS_D_BASE_MMETER) |
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| 63 | #define _METER 1000 |
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| 64 | #elif defined(_UNITS_D_BASE_UMETER) |
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| 65 | #define _METER 1000000 |
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| 66 | //#elif defined(_UNITS_D_BASE_METER) |
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| 67 | #else |
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| 68 | #define _METER 1 |
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| 69 | #endif |
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| 70 | #endif |
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| 71 | |
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| 72 | #define _AE (149597870691LL *_METER) |
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| 73 | #define _LJ (9460730472580800LL *_METER) |
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| 74 | #define _PC (30856804413117847LL*_METER) /* TODO: FIXME: get a more corret value */ |
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| 75 | |
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| 76 | |
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| 77 | /* speed */ |
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| 78 | #define _MPS (_METER/_SEC) |
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| 79 | #define _KMPH (_KILO*_METER/_HOUR) |
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| 80 | #define _SPEED_OF_SOUND_AIR (343 *_MPS) |
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| 81 | #define _SPEED_OF_SOUND_WATER (1407*_MPS) |
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| 82 | #define _SPEED_OF_SOUND _SPEED_OF_SOUND_AIR |
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| 83 | #define _SPEED_OF_LIGHT_VACUUM (299792458LL*_MPS) |
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| 84 | #define _SPEED_OF_LIGHT _SPEED_OF_LIGHT_VACUUM |
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| 85 | |
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| 86 | |
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| 87 | /* Bits -> Bytes: */ |
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| 88 | #define _BIT2BYTE(x) (((int)((x)/8)) + ((x) % 8 ? 1 : 0)) |
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| 89 | #define _BYTE2BIT(x) ((x)*8) |
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| 90 | |
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| 91 | #define _8BIT _BIT2BYTE(8) |
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| 92 | #define _16BIT _BIT2BYTE(16) |
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| 93 | #define _24BIT _BIT2BYTE(24) |
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| 94 | #define _32BIT _BIT2BYTE(32) |
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| 95 | #define _64BIT _BIT2BYTE(64) |
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| 96 | |
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| 97 | |
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| 98 | #endif |
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| 99 | |
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| 100 | //ll |
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