newtree/source/snd_disk.c
2001-02-07 05:45:59 +00:00

110 lines
2.5 KiB
C

/*
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
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/types.h>
#include "console.h"
#include "sound.h"
#include "qargs.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);
}