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#include "alsaout.h"
00027
#include <unistd.h>
00028
#include <fcntl.h>
00029
#include <stdio.h>
00030
#include "sndcard.h"
00031
#include <errno.h>
00032
#include <string.h>
00033
#include <stdlib.h>
00034
#include <sys/param.h>
00035
#include "midispec.h"
00036
00037
00038
#ifdef HAVE_CONFIG_H
00039
#include <config.h>
00040
#endif
00041
00042
#ifdef HAVE_ALSA_ASOUNDLIB_H
00043
# include <alsa/asoundlib.h>
00044
#elif defined(HAVE_SYS_ASOUNDLIB_H)
00045
# include <sys/asoundlib.h>
00046
#endif
00047
00048
#ifdef HAVE_LIBASOUND2
00049
# define HAVE_ALSA_SEQ 1
00050
# define snd_seq_flush_output(x) snd_seq_drain_output(x)
00051
#elif defined(HAVE_LIBASOUND)
00052
# define HAVE_ALSA_SEQ 1
00053
# include <linux/asequencer.h>
00054
#endif
00055
00056
00057 SEQ_USE_EXTBUF();
00058
00059
class AlsaOut::AlsaOutPrivate
00060 {
00061
public:
00062
#ifdef HAVE_ALSA_SEQ
00063
AlsaOutPrivate(
int _client,
int _port,
const char *cname,
const char *pname)
00064 {
00065 handle=0L;
00066 src=tgt=0L;
00067 queue=0;
00068 tPCN=1;
00069 tgtclient=_client;
00070 tgtport=_port;
00071 tgtname=
new char[strlen(cname)+strlen(pname)+3];
00072 strcpy(tgtname, cname);
00073 strcat(tgtname,
" ");
00074 strcat(tgtname, pname);
00075 ev=
new snd_seq_event_t;
00076 timerStarted=
false;
00077 }
00078
#else
00079
AlsaOutPrivate(
int,
int,
const char *,
const char *)
00080 {
00081 }
00082
#endif
00083
00084 ~AlsaOutPrivate()
00085 {
00086
#ifdef HAVE_ALSA_SEQ
00087
delete ev;
00088
delete tgtname;
00089
#endif
00090
}
00091
00092
#ifdef HAVE_ALSA_SEQ
00093
snd_seq_t *handle;
00094
int client;
00095
int queue;
00096 snd_seq_addr_t *src;
00097 snd_seq_addr_t *tgt;
00098
00099 snd_seq_event_t *ev;
00100
int tPCN;
00101
00102
int tgtclient;
00103
int tgtport;
00104
char *tgtname;
00105
00106
bool timerStarted;
00107
00108
#endif
00109
};
00110
00111 AlsaOut::AlsaOut(
int d,
int _client,
int _port,
const char *cname,
const char *pname) :
MidiOut (d)
00112 {
00113 di =
new AlsaOutPrivate( _client, _port, cname, pname);
00114 seqfd = 0;
00115 devicetype=KMID_ALSA;
00116 device= d;
00117
00118 volumepercentage=100;
00119
#ifdef HAVE_ALSA_SEQ
00120
00121
#endif
00122
00123 _ok=1;
00124 }
00125
00126 AlsaOut::~AlsaOut()
00127 {
00128
closeDev();
00129
delete di;
00130 }
00131
00132 void AlsaOut::openDev (
int)
00133 {
00134
#ifndef HAVE_ALSA_SEQ
00135
return;
00136
#else
00137
_ok=1;
00138
#ifdef HAVE_LIBASOUND2
00139
if (snd_seq_open(&di->handle,
"hw", SND_SEQ_OPEN_DUPLEX, 0) < 0)
00140 fprintf(stderr,
"Couldn't open sequencer: %s", snd_strerror(errno));
00141
#else
00142
if (snd_seq_open(&di->handle, SND_SEQ_OPEN) < 0)
00143 fprintf(stderr,
"Couldn't open sequencer: %s", snd_strerror(errno));
00144
#endif
00145
00146 di->queue = snd_seq_alloc_queue(di->handle);
00147
if (di->queue < 0) {fprintf(stderr,
"Couldn't allocate queue");
return; };
00148 di->client = snd_seq_client_id(di->handle);
00149
if (di->client < 0) {fprintf(stderr,
"Couldn't get client id");
return; };
00150 di->tgt =
new snd_seq_addr_t;
00151 di->tgt->client=di->tgtclient;
00152 di->tgt->port=di->tgtport;
00153
00154 di->src =
new snd_seq_addr_t;
00155 di->src->client = di->client;
00156
int port = snd_seq_create_simple_port(di->handle, NULL,
00157 SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE
00158 | SND_SEQ_PORT_CAP_READ, SND_SEQ_PORT_TYPE_MIDI_GENERIC);
00159
if ( port < 0 )
00160 {
00161
delete di->src;
00162
delete di->tgt;
00163 di->src=0;
00164 di->tgt=0;
00165 _ok=0;
00166 time=0;
00167 snd_seq_free_queue(di->handle, di->queue);
00168 snd_seq_close(di->handle);
00169 fprintf(stderr,
"Cannot connect to %d:%d\n",di->tgtclient,di->tgtport);
00170
return;
00171 }
00172 di->src->port = port;
00173
00174
00175
int r=snd_seq_connect_to(di->handle, di->src->port, di->tgt->client, di->tgt->port);
00176
if (r < 0) { _ok=0; fprintf(stderr,
"Cannot connect to %d:%d\n",di->tgtclient,di->tgtport); }
00177 time=0;
00178
#endif
00179
}
00180
00181 void AlsaOut::closeDev (
void)
00182 {
00183
if (!
ok())
return;
00184
#ifdef HAVE_ALSA_SEQ
00185
if (di->handle)
00186 {
00187
if (di->src)
00188 {
00189 snd_seq_delete_simple_port(di->handle,di->src->port);
00190
delete di->src;
00191 }
00192
if (di->tgt)
delete di->tgt;
00193
if (di->queue)
00194 {
00195 snd_seq_free_queue(di->handle, di->queue);
00196 snd_seq_close(di->handle);
00197 }
00198 di->handle=0;
00199 }
00200
00201
#endif
00202
}
00203
00204 void AlsaOut::initDev (
void)
00205 {
00206
#ifdef HAVE_ALSA_SEQ
00207
int chn;
00208
if (!
ok())
return;
00209 uchar gm_reset[5]={0x7e, 0x7f, 0x09, 0x01, 0xf7};
00210
sysex(gm_reset,
sizeof(gm_reset));
00211
for (chn=0;chn<16;chn++)
00212 {
00213 chnmute[chn]=0;
00214
if (chn!=9)
chnPatchChange(chn,0);
00215
chnPressure(chn,64);
00216
chnPitchBender(chn, 0x00, 0x40);
00217
chnController(chn, CTL_MAIN_VOLUME,110*volumepercentage);
00218
chnController(chn, CTL_EXT_EFF_DEPTH, 0);
00219
chnController(chn, CTL_CHORUS_DEPTH, 0);
00220
chnController(chn, 0x4a, 127);
00221 }
00222
#endif
00223
}
00224
00225
#ifdef HAVE_ALSA_SEQ
00226
void AlsaOut::eventInit(snd_seq_event_t *ev)
00227 {
00228 snd_seq_ev_clear(ev);
00229 snd_seq_real_time_t tmp;
00230 tmp.tv_sec=(time)/1000;
00231 tmp.tv_nsec=(time%1000)*1000000;
00232
00233
if (!di->src) fprintf(stderr,
"AlsaOut::eventInit : no source\n");
00234 ev->source = *di->src;
00235
if (!di->tgt) fprintf(stderr,
"AlsaOut::eventInit : no target\n");
00236 ev->dest = *di->tgt;
00237
00238 snd_seq_ev_schedule_real(ev, di->queue, 0, &tmp);
00239
00240 }
00241
00242
void AlsaOut::eventSend(snd_seq_event_t *ev)
00243 {
00244 snd_seq_event_output(di->handle, ev);
00245
00246
00247
00248
00249
00250
00251
00252
00253
00254
00255
00256
00257
00258
00259
00260
00261
00262
00263
00264
00265 }
00266
00267
void AlsaOut::timerEventSend(
int type)
00268 {
00269 snd_seq_event_t ev;
00270
00271 ev.queue = di->queue;
00272 ev.dest.client = SND_SEQ_CLIENT_SYSTEM;
00273 ev.dest.port = SND_SEQ_PORT_SYSTEM_TIMER;
00274
00275 ev.data.queue.queue = di->queue;
00276
00277 ev.flags = SND_SEQ_TIME_STAMP_REAL | SND_SEQ_TIME_MODE_REL;
00278 ev.time.time.tv_sec = 0;
00279 ev.time.time.tv_nsec = 0;
00280
00281 ev.type = type;
00282
00283 snd_seq_event_output(di->handle, &ev);
00284 snd_seq_flush_output(di->handle);
00285
00286 }
00287
00288
#endif // HAVE_ALSA_SEQ
00289
00290
#ifndef HAVE_ALSA_SEQ
00291 void AlsaOut::noteOn (uchar , uchar , uchar )
00292 {
00293
#else
00294
void AlsaOut::noteOn (uchar chn, uchar note, uchar vel)
00295 {
00296
if (vel==0)
00297 {
00298
noteOff(chn,note,vel);
00299 }
00300
else
00301 {
00302 eventInit(di->ev);
00303 snd_seq_ev_set_noteon(di->ev,map->
channel(chn), map->
key(chn,chnpatch[chn],note), vel);
00304 eventSend(di->ev);
00305 }
00306
#endif
00307
#ifdef MIDIOUTDEBUG
00308
printfdebug(
"Note ON >\t chn : %d\tnote : %d\tvel: %d\n",chn,note,vel);
00309
#endif
00310
}
00311
00312
#ifndef HAVE_ALSA_SEQ
00313 void AlsaOut::noteOff (uchar , uchar , uchar )
00314 {
00315
#else
00316
void AlsaOut::noteOff (uchar chn, uchar note, uchar vel)
00317 {
00318 eventInit(di->ev);
00319 snd_seq_ev_set_noteoff(di->ev,map->
channel(chn), map->
key(chn,chnpatch[chn],note), vel);
00320 eventSend(di->ev);
00321
#endif
00322
#ifdef MIDIOUTDEBUG
00323
printfdebug(
"Note OFF >\t chn : %d\tnote : %d\tvel: %d\n",chn,note,vel);
00324
#endif
00325
}
00326
00327
#ifndef HAVE_ALSA_SEQ
00328 void AlsaOut::keyPressure (uchar , uchar , uchar )
00329 {
00330
#else
00331
void AlsaOut::keyPressure (uchar chn, uchar note, uchar vel)
00332 {
00333 eventInit(di->ev);
00334 snd_seq_ev_set_keypress(di->ev,map->
channel(chn), map->
key(chn,chnpatch[chn],note), vel);
00335 eventSend(di->ev);
00336
#endif
00337
}
00338
00339
#ifndef HAVE_ALSA_SEQ
00340 void AlsaOut::chnPatchChange (uchar , uchar )
00341 {
00342
#else
00343
void AlsaOut::chnPatchChange (uchar chn, uchar patch)
00344 {
00345
#ifdef MIDIOUTDEBUG
00346
printfdebug(
"PATCHCHANGE [%d->%d] %d -> %d\n",
00347 chn,map->
channel(chn),patch,map->
patch(chn,patch));
00348
#endif
00349
eventInit(di->ev);
00350 snd_seq_ev_set_pgmchange(di->ev,map->
channel(chn), map->
patch(chn,patch));
00351 eventSend(di->ev);
00352 chnpatch[chn]=patch;
00353
#endif
00354
}
00355
00356
#ifndef HAVE_ALSA_SEQ
00357 void AlsaOut::chnPressure (uchar , uchar )
00358 {
00359
#else
00360
void AlsaOut::chnPressure (uchar chn, uchar vel)
00361 {
00362 eventInit(di->ev);
00363 snd_seq_ev_set_chanpress(di->ev,map->
channel(chn), vel);
00364 eventSend(di->ev);
00365
00366 chnpressure[chn]=vel;
00367
#endif
00368
}
00369
00370
#ifndef HAVE_ALSA_SEQ
00371 void AlsaOut::chnPitchBender(uchar ,uchar , uchar )
00372 {
00373
#else
00374
void AlsaOut::chnPitchBender(uchar chn,uchar lsb, uchar msb)
00375 {
00376 map->
pitchBender(chn,lsb,msb);
00377 chnbender[chn]=((
short)msb<<7) | (lsb & 0x7F);
00378 chnbender[chn]=chnbender[chn]-0x2000;
00379
00380 eventInit(di->ev);
00381 snd_seq_ev_set_pitchbend(di->ev,map->
channel(chn), chnbender[chn]);
00382 eventSend(di->ev);
00383
#endif
00384
}
00385
00386
#ifndef HAVE_ALSA_SEQ
00387 void AlsaOut::chnController (uchar , uchar , uchar )
00388 {
00389
#else
00390
void AlsaOut::chnController (uchar chn, uchar ctl, uchar v)
00391 {
00392 map->
controller(chn,ctl,v);
00393
if ((ctl==11)||(ctl==7))
00394 {
00395 v=(v*volumepercentage)/100;
00396
if (v>127) v=127;
00397 }
00398
00399 eventInit(di->ev);
00400 snd_seq_ev_set_controller(di->ev,map->
channel(chn), ctl, v);
00401 eventSend(di->ev);
00402
00403 chncontroller[chn][ctl]=v;
00404
#endif
00405
}
00406
00407
#ifndef HAVE_ALSA_SEQ
00408 void AlsaOut::sysex(uchar *, ulong )
00409 {
00410
#else
00411
void AlsaOut::sysex(uchar *data, ulong size)
00412 {
00413 eventInit(di->ev);
00414 snd_seq_ev_set_sysex(di->ev, size, data);
00415 eventSend(di->ev);
00416
#endif
00417
00418
#ifdef MIDIOUTDEBUG
00419
printfdebug(
"sysex\n");
00420
#endif
00421
}
00422
00423
#ifndef HAVE_ALSA_SEQ
00424 void AlsaOut::channelSilence (uchar )
00425 {
00426
#else
00427
void AlsaOut::channelSilence (uchar chn)
00428 {
00429 uchar i;
00430
for ( i=0; i<127; i++)
00431 {
00432
noteOff(chn,i,0);
00433 }
00434
#endif
00435
}
00436
00437
#ifndef HAVE_ALSA_SEQ
00438 void AlsaOut::channelMute(uchar ,
int )
00439 {
00440
#else
00441
void AlsaOut::channelMute(uchar chn,
int a)
00442 {
00443
if (a==1)
00444 {
00445 chnmute[chn]=a;
00446
channelSilence(chn);
00447 }
00448
else if (a==0)
00449 {
00450 chnmute[chn]=a;
00451 }
00452
00453
#endif
00454
}
00455
00456
void AlsaOut::seqbuf_dump (
void)
00457 {
00458 printf(
"You shouldn't be here.\n");
00459 }
00460
00461
void AlsaOut::seqbuf_clean(
void)
00462 {
00463 printf(
"You shouldn't be here neither.\n");
00464 }
00465
00466
void AlsaOut::wait(
double ticks)
00467 {
00468
00469 time=(
long int)ticks;
00470
00471
#ifdef MIDIOUTDEBUG
00472
printfdebug(
"Wait >\t ticks: %g\n",ticks);
00473
#endif
00474
}
00475
00476
#ifndef HAVE_ALSA_SEQ
00477
void AlsaOut::tmrSetTempo(
int )
00478 {
00479
#else
00480
void AlsaOut::tmrSetTempo(
int v)
00481 {
00482 eventInit(di->ev);
00483 di->ev->type = SND_SEQ_EVENT_TEMPO;
00484 snd_seq_ev_set_direct(di->ev);
00485 di->ev->data.queue.queue = di->queue;
00486 di->ev->data.queue.param.value = v;
00487 di->ev->dest.client = SND_SEQ_CLIENT_SYSTEM;
00488 di->ev->dest.port = SND_SEQ_PORT_SYSTEM_TIMER;
00489 snd_seq_event_output_direct(di->handle, di->ev);
00490
#ifdef MIDIOUTDEBUG
00491
printfdebug(
"SETTEMPO >\t tempo: %d\n",v);
00492
#endif
00493
#endif
00494
}
00495
00496
#ifndef HAVE_ALSA_SEQ
00497 void AlsaOut::sync(
int )
00498 {
00499
#else
00500
void AlsaOut::sync(
int i)
00501 {
00502
if (i==1)
00503 {
00504 snd_seq_flush_output(di->handle);
00505 }
00506
00507
if (di->timerStarted)
00508 {
00509 eventInit(di->ev);
00510 di->ev->dest = *di->src;
00511 eventSend(di->ev);
00512 snd_seq_flush_output(di->handle);
00513 snd_seq_event_input(di->handle,&di->ev);
00514 }
00515
00516
#endif
00517
}
00518
00519
#ifndef HAVE_ALSA_SEQ
00520
void AlsaOut::tmrStart(
int )
00521 {
00522
#else
00523
void AlsaOut::tmrStart(
int tpcn)
00524 {
00525
int ret;
00526 di->timerStarted=
true;
00527 di->tPCN=tpcn;
00528
00529
#ifdef HAVE_LIBASOUND2
00530
snd_seq_queue_tempo_t *queuetempo;
00531 snd_seq_queue_tempo_alloca(&queuetempo);
00532 snd_seq_queue_tempo_set_ppq(queuetempo, tpcn);
00533 snd_seq_queue_tempo_set_tempo(queuetempo, 60*1000000/120);
00534 ret = snd_seq_set_queue_tempo(di->handle, di->queue, queuetempo);
00535
#else
00536
snd_seq_queue_tempo_t queuetempo;
00537 memset(&queuetempo, 0,
sizeof(queuetempo));
00538 queuetempo.queue = di->queue;
00539 queuetempo.ppq = tpcn;
00540 queuetempo.tempo = 60*1000000/120;
00541 ret = snd_seq_set_queue_tempo(di->handle, di->queue, &queuetempo);
00542
#endif
00543
00544 timerEventSend(SND_SEQ_EVENT_START);
00545 snd_seq_start_queue(di->handle,di->queue,NULL);
00546
#endif
00547
}
00548
00549
void AlsaOut::tmrStop(
void)
00550 {
00551
#ifdef HAVE_ALSA_SEQ
00552
di->timerStarted=
false;
00553 timerEventSend(SND_SEQ_EVENT_STOP);
00554
#endif
00555
}
00556
00557
void AlsaOut::tmrContinue(
void)
00558 {
00559 }
00560
00561 const char *
AlsaOut::deviceName(
void)
const
00562
{
00563
#ifdef HAVE_ALSA_SEQ
00564
return di->tgtname;
00565
#else
00566
return 0L;
00567
#endif
00568
}