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add thiss before I accidently lose it. It's intended use is for when I

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eventually implement the demo movie writer and it will write the sound to a
file rather than the soundcard.
This commit is contained in:
Bill Currie 2000-12-02 19:59:35 +00:00
parent bacfb94db0
commit 7faabf5032
1 changed files with 106 additions and 0 deletions
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source/snd_disk.c Normal file
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/*
snd_disk.c
write sound to a disk file
Copyright (C) 1999,2000 contributors of the QuakeForge project
Please see the file "AUTHORS" for a list of contributors
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <fcntl.h>
#include <sys/types.h>
#include "qtypes.h"
#include "sound.h"
#include "qargs.h"
#include "console.h"
static int snd_inited;
QFile *snd_file;
qboolean SNDDMA_Init(void)
{
shm=&sn;
memset((dma_t*)shm,0,sizeof(*shm));
shm->splitbuffer = 0;
shm->channels=2;
shm->submission_chunk=1; // don't mix less than this #
shm->samplepos=0; // in mono samples
shm->samplebits=16;
shm->samples=16384; // mono samples in buffer
shm->speed=44100;
shm->buffer=malloc (shm->samples * shm->channels * shm->samplebits / 8);
Con_Printf("%5d stereo\n", shm->channels - 1);
Con_Printf("%5d samples\n", shm->samples);
Con_Printf("%5d samplepos\n", shm->samplepos);
Con_Printf("%5d samplebits\n", shm->samplebits);
Con_Printf("%5d submission_chunk\n", shm->submission_chunk);
Con_Printf("%5d speed\n", shm->speed);
Con_Printf("0x%x dma buffer\n", (int)shm->buffer);
Con_Printf("%5d total_channels\n", total_channels);
if (!(snd_file = Qopen ("qf.raw", "wb")))
return 0;
snd_inited=1;
return 1;
}
int SNDDMA_GetDMAPos(void)
{
shm->samplepos = 0;
return shm->samplepos;
}
void SNDDMA_Shutdown(void)
{
if (snd_inited) {
Qclose (snd_file);
snd_file = 0;
free (shm->buffer);
snd_inited = 0;
}
}
/*
==============
SNDDMA_Submit
Send sound to device if buffer isn't really the dma buffer
===============
*/
void SNDDMA_Submit(void)
{
int count = (paintedtime - soundtime) * shm->samplebits / 8;
Qwrite (snd_file, shm->buffer, count);
}