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/*
* soundhpux.c - Implementation of the HPUX sound device
*
* Written by
* Teemu Rantanen (tvr@cs.hut.fi)
*
* This file is part of VICE, the Versatile Commodore Emulator.
* See README for copyright notice.
*
* 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 <fcntl.h>
#include <sys/ioctl.h>
#include <sys/audio.h>
#include "vice.h"
#include "sound.h"
static int hpux_fd = -1;
static int hpux_init(warn_t *w, char *param, int *speed,
int *fragsize, int *fragnr, double bufsize)
{
int st, tmp, i;
if (!param)
param = "/dev/audio";
/* open device */
hpux_fd = open(param, O_WRONLY, 0777);
if (hpux_fd < 0)
return 1;
/* set 16bit */
st = ioctl(hpux_fd, AUDIO_SET_DATA_FORMAT, AUDIO_FORMAT_LINEAR16BIT);
if (st < 0)
goto fail;
/* set speed */
st = ioctl(hpux_fd, AUDIO_SET_SAMPLE_RATE, *speed);
if (st < 0)
goto fail;
/* channels */
st = ioctl(hpux_fd, AUDIO_SET_CHANNELS, 1);
if (st < 0)
goto fail;
/* should we use the default? */
st = ioctl(hpux_fd, AUDIO_SET_OUTPUT, AUDIO_OUT_SPEAKER);
if (st < 0)
goto fail;
/* set buffer size */
tmp = (*fragsize)*(*fragnr)*sizeof(SWORD);
st = ioctl(hpux_fd, AUDIO_SET_TXBUFSIZE, tmp);
if (st < 0)
{
/* XXX: what are valid buffersizes? */
for (i = 1; i < tmp; i *= 2);
tmp = i;
st = ioctl(hpux_fd, AUDIO_SET_TXBUFSIZE, tmp);
if (st < 0)
goto fail;
*fragnr = tmp / ((*fragsize)*sizeof(SWORD));
}
return 0;
fail:
close(hpux_fd);
hpux_fd = -1;
return 1;
}
static int hpux_write(warn_t *w, SWORD *pbuf, int nr)
{
int total, i, now;
total = nr*sizeof(SWORD);
for (i = 0; i < total; i += now)
{
now = write(hpux_fd, (char *)pbuf + i, total - i);
if (now <= 0)
return 1;
}
return 0;
}
static int hpux_bufferstatus(warn_t *w, int first)
{
int st;
struct audio_status ast;
st = ioctl(hpux_fd, AUDIO_GET_STATUS, &ast);
if (st < 0)
return -1;
return ast.transmit_buffer_count / sizeof(SWORD);
}
static void hpux_close(warn_t *w)
{
close(hpux_fd);
hpux_fd = -1;
}
static sound_device_t hpux_device =
{
"hpux",
hpux_init,
hpux_write,
NULL,
NULL,
hpux_bufferstatus,
hpux_close,
NULL,
NULL
};
int sound_init_hpux_device(void)
{
return sound_register_device(&hpux_device);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.