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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5131 | clevermous | 1 | /* |
| 2 | Copyright (C) 1996-1997 Id Software, Inc. |
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| 3 | |||
| 4 | This program is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU General Public License |
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| 6 | as published by the Free Software Foundation; either version 2 |
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| 7 | of the License, or (at your option) any later version. |
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| 8 | |||
| 9 | This program is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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| 12 | |||
| 13 | See the GNU General Public License for more details. |
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| 14 | |||
| 15 | You should have received a copy of the GNU General Public License |
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| 16 | along with this program; if not, write to the Free Software |
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| 17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 18 | |||
| 19 | */ |
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| 20 | |||
| 21 | #include "quakedef.h" |
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| 22 | |||
| 23 | extern int desired_speed; |
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| 24 | extern int desired_bits; |
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| 25 | |||
| 26 | qboolean SNDDMA_Init(void) |
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| 27 | { |
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| 28 | int size; |
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| 29 | |||
| 30 | size = 16384 + sizeof(dma_t); |
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| 31 | shm = malloc (size); |
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| 32 | memset((void*)shm, 0, size); |
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| 33 | |||
| 34 | shm->buffer = (char*)shm + sizeof(dma_t); |
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| 35 | shm->channels = 2; |
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| 36 | shm->speed = desired_speed; |
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| 37 | shm->samplebits = desired_bits; |
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| 38 | shm->samples = 16384 / (desired_bits / 8); |
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| 39 | shm->submission_chunk = 1; |
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| 40 | |||
| 41 | return true; |
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| 42 | } |
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| 43 | |||
| 44 | // return the current sample position (in mono samples read) |
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| 45 | // inside the recirculating dma buffer |
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| 46 | int SNDDMA_GetDMAPos(void) |
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| 47 | { |
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| 48 | shm->samplepos = (int)(realtime*shm->speed*shm->channels) & (shm->samples-1); |
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| 49 | |||
| 50 | return shm->samplepos; |
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| 51 | } |
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| 52 | |||
| 53 | void SNDDMA_Shutdown(void) |
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| 54 | { |
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| 55 | } |