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/* MikMod sound library
(c) 1998, 1999, 2000 Miodrag Vallat and others - see file AUTHORS for
complete list.
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Library 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
/*==============================================================================
$Id$
Driver for output to HP 9000 series /dev/audio
==============================================================================*/
/*
Written by Lutz Vieweg <lkv@mania.robin.de>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "mikmod_internals.h"
#ifdef DRV_HP
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include <stdlib.h>
#include <sys/audio.h>
#define BUFFERSIZE 15
static int fd=-1;
static SBYTE *audiobuffer=NULL;
static int buffersize=1<<BUFFERSIZE;
static int headphone=0;
static void HP_CommandLine(const CHAR *cmdline)
{
char *buffer=MD_GetAtom("buffer",cmdline,0);
if(buffer) {
int buf=atoi(buffer);
if((buf<12)||(buf>19)) buf=BUFFERSIZE;
buffersize=1<<buf;
MikMod_free(buffer);
}
buffer=MD_GetAtom("headphone",cmdline,1);
if(buffer) {
headphone=1;
MikMod_free(buffer);
} else
headphone=0;
}
static BOOL HP_IsThere(void)
{
int fd;
if((fd=open("/dev/audio",O_WRONLY))>=0) {
close(fd);
return 1;
}
return (errno==EACCES?1:0);
}
static int HP_Init(void)
{
int flags;
if (!(md_mode&DMODE_16BITS)) {
_mm_errno=MMERR_16BIT_ONLY;
return 1;
}
if ((fd=open("/dev/audio",O_WRONLY|O_NDELAY,0))<0) {
_mm_errno=MMERR_OPENING_AUDIO;
return 1;
}
if ((flags=fcntl(fd,F_GETFL,0))<0) {
_mm_errno=MMERR_NON_BLOCK;
return 1;
}
flags|=O_NDELAY;
if (fcntl(fd,F_SETFL,flags)<0) {
_mm_errno=MMERR_NON_BLOCK;
return 1;
}
if (ioctl(fd,AUDIO_SET_DATA_FORMAT,AUDIO_FORMAT_LINEAR16BIT)) {
_mm_errno=MMERR_HP_SETSAMPLESIZE;
return 1;
}
if (ioctl(fd,AUDIO_SET_SAMPLE_RATE,md_mixfreq)) {
_mm_errno=MMERR_HP_SETSPEED;
return 1;
}
if (ioctl(fd,AUDIO_SET_CHANNELS,(md_mode&DMODE_STEREO)?2:1)) {
_mm_errno=MMERR_HP_CHANNELS;
return 1;
}
if (ioctl(fd,AUDIO_SET_OUTPUT,
headphone?AUDIO_OUT_HEADPHONE:AUDIO_OUT_SPEAKER)) {
_mm_errno=MMERR_HP_AUDIO_OUTPUT;
return 1;
}
if (ioctl(fd,AUDIO_SET_TXBUFSIZE,buffersize<<3)) {
_mm_errno=MMERR_HP_BUFFERSIZE;
return 1;
}
if (!(audiobuffer=(SBYTE*)MikMod_malloc(buffersize))) return 1;
return VC_Init();
}
static void HP_Exit(void)
{
VC_Exit();
if (fd>=0) {
ioctl(fd,AUDIO_DRAIN,0);
close(fd);
fd=-1;
}
MikMod_free(audiobuffer);
audiobuffer=NULL;
}
static void HP_Update(void)
{
write(fd,audiobuffer,VC_WriteBytes(audiobuffer,buffersize));
}
MIKMODAPI MDRIVER drv_hp={
NULL,
"HP-UX Audio",
"HP-UX Audio driver v1.3",
0,255,
"hp",
"buffer:r:12,19,15:Audio buffer log2 size\n"
"headphone:b:0:Use headphone\n",
HP_CommandLine,
HP_IsThere,
VC_SampleLoad,
VC_SampleUnload,
VC_SampleSpace,
VC_SampleLength,
HP_Init,
HP_Exit,
NULL,
VC_SetNumVoices,
VC_PlayStart,
VC_PlayStop,
HP_Update,
NULL,
VC_VoiceSetVolume,
VC_VoiceGetVolume,
VC_VoiceSetFrequency,
VC_VoiceGetFrequency,
VC_VoiceSetPanning,
VC_VoiceGetPanning,
VC_VoicePlay,
VC_VoiceStop,
VC_VoiceStopped,
VC_VoiceGetPosition,
VC_VoiceRealVolume
};
#else
MISSING(drv_hp);
#endif
/* ex:set ts=4: */
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