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tdelibs/libkmid/deviceman.cc

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/**************************************************************************
deviceman.cc - The device manager, that hides the use of midiOut
This file is part of LibKMid 0.9.5
Copyright (C) 1997,98,99,2000 Antonio Larrosa Jimenez
LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libkmid.html
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 library 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; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
$Id$
Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
***************************************************************************/
#include "deviceman.h"
#include "midiout.h"
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <errno.h>
#include "sndcard.h"
#include "synthout.h"
#include "fmout.h"
#include "gusout.h"
#include "alsaout.h"
#include "midimapper.h"
#include "midispec.h"
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_ALSA_ASOUNDLIB_H
# define HAVE_ALSA_SUPPORT
# include <alsa/asoundlib.h>
#elif defined(HAVE_SYS_ASOUNDLIB_H)
# define HAVE_ALSA_SUPPORT
# include <sys/asoundlib.h>
#else
#ifdef HAVE_LIBASOUND2
# define HAVE_ALSA_SUPPORT
# include <sound/asound.h>
# include <sound/asequencer.h>
#elif defined(HAVE_LIBASOUND)
# define HAVE_ALSA_SUPPORT
# include <linux/asequencer.h>
#endif
#endif
#if 1
#include <kinstance.h>
#include <kglobal.h>
#include <kconfig.h>
#endif
//#define DEVICEMANDEBUG
//#define GENERAL_DEBUG_MESSAGES
SEQ_DEFINEBUF (4096);
#define CONTROLTIMER
#ifdef GENERAL_DEBUG_MESSAGES
void DEBUGPRINTF(const char *format)
{
printf(format);
}
void DEBUGPRINTF(const char *format,int i)
{
printf(format,i);
}
void DEBUGPRINTF(const char *format,const char *s)
{
printf(format,s);
}
#else
void DEBUGPRINTF(const char *) { }
void DEBUGPRINTF(const char *,int ) { }
void DEBUGPRINTF(const char *,const char * ) { }
#endif
DeviceManager::DeviceManager(int def)
{
#if 1
if (def==-1)
{
KInstance *tmp_instance=0L;
if (!KGlobal::_instance) tmp_instance=new KInstance("nonKDEapp");
KConfig *config = new KConfig("kcmmidirc", true);
config->setGroup("Configuration");
default_dev=config->readNumEntry("midiDevice",0);
if ( default_dev < 0 )
default_dev=0;
QString mapurl(config->readPathEntry("mapFilename"));
if ((config->readBoolEntry("useMidiMapper", false))&&(!mapurl.isEmpty()))
{
mapper_tmp = new MidiMapper( mapurl.mid(mapurl.find(":")+1 ).local8Bit() );
}
else
mapper_tmp = 0L;
delete config;
delete tmp_instance;
}
else
#endif
{
default_dev = def;
mapper_tmp = 0L;
}
initialized=0;
_ok=1;
alsa=false;
device = 0L;
m_rate=0;
convertrate=10;
seqfd=-1;
timerstarted=0;
n_midi=0;
n_synths=0;
n_total=0;
midiinfo=0L;
synthinfo=0L;
for (int i=0;i<16;i++) chn2dev[i]=default_dev;
}
DeviceManager::~DeviceManager(void)
{
closeDev();
if (device)
{
for (int i=0;i<n_total;i++)
delete device[i];
delete[] device;
device=0L;
}
#ifdef HAVE_OSS_SUPPORT
delete[] midiinfo;
delete[] synthinfo;
#endif
}
int DeviceManager::ok(void)
{
int r=_ok;
_ok=1;
return r;
}
int DeviceManager::checkInit(void)
{
if (initialized==0)
{
int r=initManager();
if (default_dev>=n_total) default_dev=0;
DEBUGPRINTF("check : %d\n",r);
return r;
}
return 0;
}
void DeviceManager::checkAlsa(void)
{
#ifdef HAVE_SYS_STAT_H
struct stat buf;
stat("/proc/asound", &buf);
if ((stat("/proc/asound", &buf) == 0 ) && (S_ISDIR(buf.st_mode)))
alsa=true;
else
alsa=false;
#else
#warning "ALSA won't be found at runtime"
alsa=false;
#endif
}
int DeviceManager::initManager(void)
{
checkAlsa();
if (!alsa) // We are using OSS
{
#ifdef HAVE_OSS_SUPPORT
n_synths=0;
n_midi=0;
n_total=0;
seqfd = open("/dev/sequencer", O_WRONLY | O_NONBLOCK, 0);
if (seqfd==-1)
{
fprintf(stderr,"ERROR: Couldn't open /dev/sequencer to get some information\n");
_ok=0;
return -1;
}
ioctl(seqfd,SNDCTL_SEQ_NRSYNTHS,&n_synths);
ioctl(seqfd,SNDCTL_SEQ_NRMIDIS,&n_midi);
n_total=n_midi+n_synths;
if (n_midi==0)
{
fprintf(stderr,"ERROR: There's no midi port\n");
/* This could be a problem if the user don't have a synth neither,
but not having any of both things is unusual */
// _ok=0;
// return 1;
}
device=new MidiOut*[n_total];
midiinfo=new midi_info[n_midi];
synthinfo=new synth_info[n_synths];
int i;
for (i=0;i<n_midi;i++)
{
midiinfo[i].device=i;
if (ioctl(seqfd,SNDCTL_MIDI_INFO,&midiinfo[i])!=-1)
{
#ifdef GENERAL_DEBUG_MESSAGES
printf("----\n");
printf("Device : %d\n",i);
printf("Name : %s\n",midiinfo[i].name);
printf("Device type : %d\n",midiinfo[i].dev_type);
#endif
}
device[i]=new MidiOut(i);
}
for (i=0;i<n_synths;i++)
{
synthinfo[i].device=i;
if (ioctl(seqfd,SNDCTL_SYNTH_INFO,&synthinfo[i])!=-1)
{
#ifdef GENERAL_DEBUG_MESSAGES
printf("----\n");
printf("Device : %d\n",i);
printf("Name : %s\n",synthinfo[i].name);
switch (synthinfo[i].synth_type)
{
case (SYNTH_TYPE_FM) : printf("FM\n");break;
case (SYNTH_TYPE_SAMPLE) : printf("Sample\n");break;
case (SYNTH_TYPE_MIDI) : printf("Midi\n");break;
default : printf("default type\n");break;
};
switch (synthinfo[i].synth_subtype)
{
case (FM_TYPE_ADLIB) : printf("Adlib\n");break;
case (FM_TYPE_OPL3) : printf("Opl3\n");break;
case (MIDI_TYPE_MPU401) : printf("Mpu-401\n");break;
case (SAMPLE_TYPE_GUS) : printf("Gus\n");break;
default : printf("default subtype\n");break;
}
#endif
if (synthinfo[i].synth_type==SYNTH_TYPE_FM)
device[i+n_midi]=new FMOut(i,synthinfo[i].nr_voices);
else if ((synthinfo[i].synth_type==SYNTH_TYPE_SAMPLE)&&
(synthinfo[i].synth_subtype==SAMPLE_TYPE_GUS))
device[i+n_midi]=new GUSOut(i,synthinfo[i].nr_voices);
else
device[i+n_midi]=new SynthOut(i);
}
}
close(seqfd);
#else // There's no OSS support and ALSA wasn't detected
// It must be one of those systems coolo is using :-)
n_synths=0;
n_midi=0;
n_total=0;
device=0L;
midiinfo=0L;
synthinfo=0L;
#endif
}
else
{ // We are using ALSA
#ifdef HAVE_ALSA_SUPPORT
int client, port;
#ifdef HAVE_LIBASOUND2
snd_seq_t *handle=0;
snd_seq_client_info_t *clienti;
snd_seq_client_info_malloc(&clienti);
snd_seq_port_info_t *porti;
snd_seq_port_info_malloc(&porti);
snd_seq_open(&handle, "hw", SND_SEQ_OPEN_DUPLEX, 0);
if (!handle) { printf("handle==0\n"); return -1; };
snd_seq_system_info_t *info;
snd_seq_system_info_malloc(&info);
if (!info) { printf("info==0\n"); return -1; };
snd_seq_system_info(handle, info);
n_total=0;
n_midi=0;
n_synths=0;
device=new MidiOut*[snd_seq_system_info_get_clients(info)*snd_seq_system_info_get_ports(info)];
unsigned int k=SND_SEQ_PORT_CAP_SUBS_WRITE | SND_SEQ_PORT_CAP_WRITE ;
for (client=0 ; client<snd_seq_system_info_get_clients(info) ; client++)
{
snd_seq_get_any_client_info(handle, client, clienti);
for (port=0 ; port<snd_seq_client_info_get_num_ports(clienti) ; port++)
{
snd_seq_get_any_port_info(handle, client, port, porti);
if (( snd_seq_port_info_get_capability(porti) & k ) == k)
{
device[n_midi]=new AlsaOut(n_midi,client, port, snd_seq_client_info_get_name(clienti), snd_seq_port_info_get_name(porti));
n_midi++;
};
}
}
snd_seq_client_info_free(clienti);
snd_seq_port_info_free(porti);
snd_seq_system_info_free(info);
#else
snd_seq_t *handle=0;
snd_seq_client_info_t clienti;
snd_seq_port_info_t porti;
snd_seq_open(&handle, SND_SEQ_OPEN);
if (!handle) { printf("handle(2)==0\n"); return -1; };
snd_seq_system_info_t info;
info.clients=info.ports=0;
snd_seq_system_info(handle, &info);
n_total=0;
n_midi=0;
n_synths=0;
device=new MidiOut*[info.clients*info.ports];
unsigned int k=SND_SEQ_PORT_CAP_SUBS_WRITE | SND_SEQ_PORT_CAP_WRITE ;
for (client=0 ; client<info.clients ; client++)
{
snd_seq_get_any_client_info(handle, client, &clienti);
for (port=0 ; port<clienti.num_ports ; port++)
{
snd_seq_get_any_port_info(handle, client, port, &porti);
if (( porti.capability & k ) == k)
{
device[n_midi]=new AlsaOut(n_midi,client, port, clienti.name, porti.name);
n_midi++;
};
}
}
#endif
n_total=n_midi;
snd_seq_close(handle);
#else
// Note: Please don't add i18n for the text below, thanks :)
fprintf(stderr,"Sorry, this KMid version was compiled without \n");
fprintf(stderr,"ALSA support but you're using ALSA . \n");
fprintf(stderr,"Please compile KMid for yourself or tell the people\n");
fprintf(stderr,"at your Linux distribution to compile it themselves\n");
#endif
}
if (mapper_tmp!=0L) setMidiMap(mapper_tmp);
initialized=1;
return 0;
}
void DeviceManager::openDev(void)
{
if (checkInit()<0)
{
DEBUGPRINTF("DeviceManager::openDev : Not initialized\n");
_ok = 0;
return;
}
_ok=1;
if (!alsa)
{
#ifdef HAVE_OSS_SUPPORT
seqfd = open("/dev/sequencer", O_WRONLY | O_NONBLOCK, 0);
if (seqfd==-1)
{
fprintf(stderr,"Couldn't open the MIDI sequencer device (/dev/sequencer)\n");
_ok=0;
return;
}
_seqbufptr = 0;
ioctl(seqfd,SNDCTL_SEQ_RESET);
//ioctl(seqfd,SNDCTL_SEQ_PANIC);
m_rate=0;
int r=ioctl(seqfd,SNDCTL_SEQ_CTRLRATE,&m_rate);
if ((r==-1)||(m_rate<=0)) m_rate=HZ;
convertrate=1000/m_rate;
#endif
}
else seqfd=0L; // ALSA
// DEBUGPRINTF("Opening devices : ");
for (int i=0;i<n_total;i++)
{
device[i]->openDev(seqfd);
// DEBUGPRINTF("%s ",device[i]->deviceName());
}
// DEBUGPRINTF("\n");
for (int i=0;i<n_total;i++) if (!device[i]->ok()) _ok=0;
if (_ok==0)
{
for (int i=0;i<n_total;i++) device[i]->closeDev();
// DEBUGPRINTF("DeviceMan :: ERROR : Closing devices\n");
return;
}
// DEBUGPRINTF("Devices opened\n");
}
void DeviceManager::closeDev(void)
{
if (alsa)
{
if (device)
for (int i=0;i<n_total;i++)
if (device[i]) device[i]->closeDev();
return;
}
#ifdef HAVE_OSS_SUPPORT
if (seqfd==-1) return;
tmrStop();
if (device)
for (int i=0;i<n_total;i++)
if (device[i]) device[i]->closeDev();
/*
DEBUGPRINTF("Closing devices : ");
if (device!=NULL) for (int i=0;i<n_total;i++)
{
device[i]->initDev();
DEBUGPRINTF("%s ",device[i]->deviceName());
// device[i]->closeDev();
};
DEBUGPRINTF("\n");
*/
close(seqfd);
seqfd=-1;
#endif
}
void DeviceManager::initDev(void)
{
if (device!=0L)
{
// DEBUGPRINTF("Initializing devices :");
for (int i=0;i<n_total;i++)
{
device[i]->initDev();
DEBUGPRINTF("%s ",device[i]->deviceName());
}
DEBUGPRINTF("\n");
}
}
void DeviceManager::noteOn ( uchar chn, uchar note, uchar vel )
{
MidiOut *midi=chntodev(chn);
if (midi) midi->noteOn(chn,note,vel);
}
void DeviceManager::noteOff ( uchar chn, uchar note, uchar vel )
{
MidiOut *midi=chntodev(chn);
if (midi) midi->noteOff(chn,note,vel);
}
void DeviceManager::keyPressure ( uchar chn, uchar note, uchar vel )
{
MidiOut *midi=chntodev(chn);
if (midi) midi->keyPressure(chn,note,vel);
}
void DeviceManager::chnPatchChange ( uchar chn, uchar patch )
{
MidiOut *midi=chntodev(chn);
if (midi) midi->chnPatchChange(chn,patch);
}
void DeviceManager::chnPressure ( uchar chn, uchar vel )
{
MidiOut *midi=chntodev(chn);
if (midi) midi->chnPressure(chn,vel);
}
void DeviceManager::chnPitchBender ( uchar chn, uchar lsb, uchar msb )
{
MidiOut *midi=chntodev(chn);
if (midi) midi->chnPitchBender(chn,lsb,msb);
}
void DeviceManager::chnController ( uchar chn, uchar ctl , uchar v )
{
MidiOut *midi=chntodev(chn);
if (midi) midi->chnController(chn,ctl,v);
}
void DeviceManager::sysEx ( uchar *data,ulong size)
{
for (int i=0;i<n_midi;i++)
device[i]->sysex(data,size);
}
void DeviceManager::wait (double ticks)
{
#ifdef HAVE_ALSA_SUPPORT
if (alsa) { ((AlsaOut *)device[default_dev])->wait(ticks); return; };
#endif
#ifdef HAVE_OSS_SUPPORT
unsigned long int t=(unsigned long int)(ticks/convertrate);
if (lastwaittime==t) return;
lastwaittime=t;
SEQ_WAIT_TIME(t);
SEQ_DUMPBUF();
#endif
}
//void DeviceManager::tmrSetTempo(int v)
void DeviceManager::tmrSetTempo(int v)
{
#ifdef HAVE_ALSA_SUPPORT
if (alsa) { ((AlsaOut *)device[default_dev])->tmrSetTempo(v); return; }
#endif
#ifdef HAVE_OSS_SUPPORT
SEQ_SET_TEMPO(v);
SEQ_DUMPBUF();
#endif
}
void DeviceManager::tmrStart(long int
#ifdef HAVE_ALSA_SUPPORT
tpcn /*name the argument only if it is used*/
#endif
)
{
#ifdef HAVE_ALSA_SUPPORT
if (alsa) { ((AlsaOut *)device[default_dev])->tmrStart(tpcn); return; }
#endif
#ifdef HAVE_OSS_SUPPORT
#ifdef CONTROLTIMER
if (!timerstarted)
{
SEQ_START_TIMER();
SEQ_DUMPBUF();
timerstarted=1;
}
lastwaittime=0;
#else
SEQ_START_TIMER();
SEQ_DUMPBUF();
#endif
#endif
}
void DeviceManager::tmrStop(void)
{
#ifdef HAVE_ALSA_SUPPORT
if (alsa) { ((AlsaOut *)device[default_dev])->tmrStop(); return; }
#endif
#ifdef HAVE_OSS_SUPPORT
#ifdef CONTROLTIMER
if (timerstarted)
{
SEQ_STOP_TIMER();
SEQ_DUMPBUF();
timerstarted=0;
}
#else
SEQ_STOP_TIMER();
SEQ_DUMPBUF();
#endif
#endif
}
void DeviceManager::tmrContinue(void)
{
#ifdef HAVE_ALSA_SUPPORT
if (alsa) { ((AlsaOut *)device[default_dev])->tmrContinue(); return; }
#endif
#ifdef HAVE_OSS_SUPPORT
#ifdef CONTROLTIMER
if (timerstarted)
{
SEQ_CONTINUE_TIMER();
SEQ_DUMPBUF();
}
#else
SEQ_CONTINUE_TIMER();
SEQ_DUMPBUF();
#endif
#endif
}
void DeviceManager::sync(bool f)
{
#ifdef HAVE_ALSA_SUPPORT
if (alsa) { ((AlsaOut *)device[default_dev])->sync(f); return ; };
#endif
#ifdef HAVE_OSS_SUPPORT
#ifdef DEVICEMANDEBUG
printf("Sync %d\n",f);
#endif
if (f)
{
seqbuf_clean();
/* If you have any problem, try removing the next 2 lines,
I though they would be useful here but the may have side effects */
ioctl(seqfd,SNDCTL_SEQ_RESET);
ioctl(seqfd,SNDCTL_SEQ_PANIC);
}
else
{
seqbuf_dump();
ioctl(seqfd, SNDCTL_SEQ_SYNC);
};
#endif
}
void DeviceManager::seqbuf_dump (void)
{
if (!alsa)
{
#ifdef HAVE_OSS_SUPPORT
if (_seqbufptr)
{
int r=0;
unsigned char *sb=_seqbuf;
int w=_seqbufptr;
r=write (seqfd, _seqbuf, _seqbufptr);
#ifdef DEVICEMANDEBUG
printf("%d == %d\n",r,w);
printf("%d\n",(errno==EAGAIN)? 1 : 0);
#endif
while (((r == -1)&&(errno==EAGAIN))||(r != w))
{
if ((r==-1)&&(errno==EAGAIN))
{
usleep(1);
}
else if ((r>0)&&(r!=w))
{
w-=r;
sb+=r;
}
r=write (seqfd, sb, w);
#ifdef DEVICEMANDEBUG
printf("%d == %d\n",r,w);
printf("%d\n",(errno==EAGAIN)? 1 : 0);
#endif
}
}
/*
* if (_seqbufptr)
* if (write (seqfd, _seqbuf, _seqbufptr) == -1)
* {
* printf("Error writing to /dev/sequencer in deviceManager::seqbuf_dump\n");
* perror ("write /dev/sequencer in seqbuf_dump\n");
* exit (-1);
* }
*/
_seqbufptr = 0;
#endif
}
}
void DeviceManager::seqbuf_clean(void)
{
#ifdef HAVE_ALSA_SUPPORT
if (alsa)
((AlsaOut *)device[default_dev])->seqbuf_clean();
else
#endif
#ifdef HAVE_OSS_SUPPORT
_seqbufptr=0;
#endif
}
const char *DeviceManager::name(int i)
{
#ifdef HAVE_OSS_SUPPORT
if (checkInit()<0) {_ok = 0; return NULL;}
if (alsa)
{
if (i<n_midi) return device[i]->deviceName();
}
else
{
if (i<n_midi) return midiinfo[i].name;
if (i<n_midi+n_synths) return synthinfo[i-n_midi].name;
};
#endif
return (char *)"";
}
const char *DeviceManager::type(int i)
{
#ifdef HAVE_OSS_SUPPORT
if (checkInit()<0) {_ok = 0; return NULL;}
if (alsa)
{
if (i<n_midi) return "ALSA device";
}
else
{
if (i<n_midi)
{
return "External Midi Port";
}
if (i<n_midi+n_synths)
{
switch (synthinfo[i-n_midi].synth_subtype)
{
case (FM_TYPE_ADLIB) : return "Adlib";break;
case (FM_TYPE_OPL3) : return "FM";break;
case (MIDI_TYPE_MPU401) : return "MPU 401";break;
case (SAMPLE_TYPE_GUS) : return "GUS";break;
}
}
}
#endif
return "";
}
int DeviceManager::defaultDevice(void)
{
return default_dev;
}
void DeviceManager::setDefaultDevice(int i)
{
if (i>=n_total) return;
default_dev=i;
for (int i=0;i<16;i++) chn2dev[i]=default_dev;
}
const char *DeviceManager::midiMapFilename(void)
{
if (device==0L) return "";
if (default_dev>=n_total) return "";
return (device[default_dev]!=NULL) ?
device[default_dev]->midiMapFilename() : "";
}
void DeviceManager::setMidiMap(MidiMapper *map)
{
if (map==NULL) return;
mapper_tmp=map;
if (default_dev>=n_total) {default_dev=0;return;};
if ((device==0L)||(device[default_dev]==NULL))
return;
device[default_dev]->setMidiMapper(map);
}
int DeviceManager::setPatchesToUse(int *patchesused)
{
if (checkInit()<0) return -1;
if ((device==0L)||(device[default_dev]==NULL))
return 0;
if ((device[default_dev]->deviceType())==KMID_GUS)
{
GUSOut *gus=(GUSOut *)device[default_dev];
gus->setPatchesToUse(patchesused);
}
return 0;
}
void DeviceManager::setVolumePercentage(int v)
{
if (device!=0L)
{
for (int i=0;i<n_total;i++)
{
device[i]->setVolumePercentage(v);
}
}
}
void DeviceManager::setDeviceNumberForChannel(int chn, int dev)
{
chn2dev[chn]=dev;
}
void DeviceManager::allNotesOff(void)
{
for (int i=0;i<n_midi;i++)
device[i]->allNotesOff();
}
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