| 0,0 → 1,55 |
|---|
| /* |
| Copyright (C) 1996-1997 Id Software, Inc. |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License |
| as published by the Free Software Foundation; either version 2 |
| of the License, or (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| |
| See the GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| |
| */ |
| |
| #include "quakedef.h" |
| |
| extern int desired_speed; |
| extern int desired_bits; |
| |
| qboolean SNDDMA_Init(void) |
| { |
| int size; |
| |
| size = 16384 + sizeof(dma_t); |
| shm = malloc (size); |
| memset((void*)shm, 0, size); |
| |
| shm->buffer = (char*)shm + sizeof(dma_t); |
| shm->channels = 2; |
| shm->speed = desired_speed; |
| shm->samplebits = desired_bits; |
| shm->samples = 16384 / (desired_bits / 8); |
| shm->submission_chunk = 1; |
| |
| return true; |
| } |
| |
| // return the current sample position (in mono samples read) |
| // inside the recirculating dma buffer |
| int SNDDMA_GetDMAPos(void) |
| { |
| shm->samplepos = (int)(realtime*shm->speed*shm->channels) & (shm->samples-1); |
| |
| return shm->samplepos; |
| } |
| |
| void SNDDMA_Shutdown(void) |
| { |
| } |