/[svn]/linuxsampler/trunk/src/network/lscpserver.cpp
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Contents of /linuxsampler/trunk/src/network/lscpserver.cpp

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Revision 184 - (show annotations) (download)
Wed Jul 7 02:00:37 2004 UTC (17 years, 6 months ago) by senkov
File size: 53140 byte(s)
* Added MISCELLANEOUS event to help debugging client/server
interaction. It spits out every line received by the server.

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * *
7 * This program is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
11 * *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
16 * *
17 * You should have received a copy of the GNU General Public License *
18 * along with this program; if not, write to the Free Software *
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20 * MA 02111-1307 USA *
21 ***************************************************************************/
22
23 #include "lscpserver.h"
24 #include "lscpresultset.h"
25 #include "lscpevent.h"
26
27 #include "../engines/gig/Engine.h"
28 #include "../audiodriver/AudioOutputDeviceFactory.h"
29 #include "../mididriver/MidiInputDeviceFactory.h"
30
31 /**
32 * Below are a few static members of the LSCPServer class.
33 * The big assumption here is that LSCPServer is going to remain a singleton.
34 * These members are used to support client connections.
35 * Class handles multiple connections at the same time using select() and non-blocking recv()
36 * Commands are processed by a single LSCPServer thread.
37 * Notifications are delivered either by the thread that originated them
38 * or (if the resultset is currently in progress) by the LSCPServer thread
39 * after the resultset was sent out.
40 * This makes sure that resultsets can not be interrupted by notifications.
41 * This also makes sure that the thread sending notification is not blocked
42 * by the LSCPServer thread.
43 */
44 fd_set LSCPServer::fdSet;
45 int LSCPServer::currentSocket = -1;
46 std::vector<int> LSCPServer::hSessions = std::vector<int>();
47 std::map<int,String> LSCPServer::bufferedNotifies = std::map<int,String>();
48 std::map<int,String> LSCPServer::bufferedCommands = std::map<int,String>();
49 std::map< LSCPEvent::event_t, std::list<int> > LSCPServer::eventSubscriptions = std::map< LSCPEvent::event_t, std::list<int> >();
50 Mutex LSCPServer::NotifyMutex = Mutex();
51 Mutex LSCPServer::NotifyBufferMutex = Mutex();
52 Mutex LSCPServer::SubscriptionMutex = Mutex();
53
54 LSCPServer::LSCPServer(Sampler* pSampler) : Thread(false, 0, -4) {
55 this->pSampler = pSampler;
56 LSCPEvent::RegisterEvent(LSCPEvent::event_channels, "CHANNELS");
57 LSCPEvent::RegisterEvent(LSCPEvent::event_voice_count, "VOICE_COUNT");
58 LSCPEvent::RegisterEvent(LSCPEvent::event_stream_count, "STREAM_COUNT");
59 LSCPEvent::RegisterEvent(LSCPEvent::event_buffer_fill, "BUFFER_FILL");
60 LSCPEvent::RegisterEvent(LSCPEvent::event_info, "INFO");
61 LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");
62 }
63
64 int LSCPServer::Main() {
65 int hSocket = socket(AF_INET, SOCK_STREAM, 0);
66 if (hSocket < 0) {
67 std::cerr << "LSCPServer: Could not create server socket." << std::endl;
68 //return -1;
69 exit(EXIT_FAILURE);
70 }
71
72 SocketAddress.sin_family = AF_INET;
73 SocketAddress.sin_port = htons(LSCP_PORT);
74 SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);
75
76 if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
77 std::cerr << "LSCPServer: Could not bind server socket." << std::endl;
78 close(hSocket);
79 //return -1;
80 exit(EXIT_FAILURE);
81 }
82
83 listen(hSocket, 1);
84 dmsg(1,("LSCPServer: Server running.\n")); // server running
85
86 // now wait for client connections and handle their requests
87 sockaddr_in client;
88 int length = sizeof(client);
89 struct timeval tv;
90 tv.tv_sec = 30;
91 tv.tv_usec = 0;
92 FD_ZERO(&fdSet);
93 FD_SET(hSocket, &fdSet);
94 int maxSessions = hSocket;
95
96 // Parser initialization
97 yyparse_param_t yyparse_param;
98 yyparse_param.pServer = this;
99
100 while (true) {
101 fd_set selectSet = fdSet;
102 int retval = select(maxSessions+1, &selectSet, NULL, NULL, &tv);
103 if (retval == 0)
104 continue; //Nothing in 30 seconds, try again
105 if (retval == -1) {
106 std::cerr << "LSCPServer: Socket select error." << std::endl;
107 close(hSocket);
108 exit(EXIT_FAILURE);
109 }
110
111 //Accept new connections now (if any)
112 if (FD_ISSET(hSocket, &selectSet)) {
113 int socket = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length);
114 if (socket < 0) {
115 std::cerr << "LSCPServer: Client connection failed." << std::endl;
116 exit(EXIT_FAILURE);
117 }
118
119 if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
120 std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
121 exit(EXIT_FAILURE);
122 }
123
124 hSessions.push_back(socket);
125 FD_SET(socket, &fdSet);
126 if (socket > maxSessions)
127 maxSessions = socket;
128 dmsg(1,("LSCPServer: Client connection established on socket:%d.\n", socket));
129 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection established on socket", socket));
130 continue; //Maybe this was the only selected socket, better select again
131 }
132
133 //Something was selected and it was not the hSocket, so it must be some command(s) coming.
134 for (std::vector<int>::iterator iter = hSessions.begin(); iter != hSessions.end(); iter++) {
135 if (FD_ISSET(*iter, &selectSet)) { //Was it this socket?
136 if (GetLSCPCommand(iter)) { //Have we read the entire command?
137 dmsg(3,("LSCPServer: Got command on socket %d, calling parser.\n", currentSocket));
138 yylex_init(&yyparse_param.pScanner);
139 currentSocket = *iter; //a hack
140 int result = yyparse(&yyparse_param);
141 currentSocket = -1; //continuation of a hack
142 dmsg(3,("LSCPServer: Done parsing on socket %d.\n", currentSocket));
143 if (result == LSCP_QUIT) { //Was it a quit command by any chance?
144 CloseConnection(iter);
145 }
146 }
147 //socket may have been closed, iter may be invalid, get out of the loop for now.
148 //we'll be back if there is data.
149 break;
150 }
151 }
152
153 //Now let's deliver late notifies (if any)
154 NotifyBufferMutex.Lock();
155 for (std::map<int,String>::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) {
156 send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), 0);
157 bufferedNotifies.erase(iterNotify);
158 }
159 NotifyBufferMutex.Unlock();
160 }
161 //It will never get here anyway
162 //yylex_destroy(yyparse_param.pScanner);
163 }
164
165 void LSCPServer::CloseConnection( std::vector<int>::iterator iter ) {
166 int socket = *iter;
167 dmsg(1,("LSCPServer: Client connection terminated on socket:%d.\n",socket));
168 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection terminated on socket", socket));
169 hSessions.erase(iter);
170 FD_CLR(socket, &fdSet);
171 SubscriptionMutex.Lock(); //Must unsubscribe this socket from all events (if any)
172 for (std::map< LSCPEvent::event_t, std::list<int> >::iterator iter = eventSubscriptions.begin(); iter != eventSubscriptions.end(); iter++) {
173 iter->second.remove(socket);
174 }
175 SubscriptionMutex.Unlock();
176 NotifyMutex.Lock();
177 bufferedCommands.erase(socket);
178 bufferedNotifies.erase(socket);
179 close(socket);
180 NotifyMutex.Unlock();
181 }
182
183 void LSCPServer::SendLSCPNotify( LSCPEvent event ) {
184 SubscriptionMutex.Lock();
185 if (eventSubscriptions.count(event.GetType()) == 0) {
186 SubscriptionMutex.Unlock(); //Nobody is subscribed to this event
187 return;
188 }
189 std::list<int>::iterator iter = eventSubscriptions[event.GetType()].begin();
190 std::list<int>::iterator end = eventSubscriptions[event.GetType()].end();
191 String notify = event.Produce();
192
193 while (true) {
194 if (NotifyMutex.Trylock()) {
195 for(;iter != end; iter++)
196 send(*iter, notify.c_str(), notify.size(), 0);
197 NotifyMutex.Unlock();
198 break;
199 } else {
200 if (NotifyBufferMutex.Trylock()) {
201 for(;iter != end; iter++)
202 bufferedNotifies[*iter] += notify;
203 NotifyBufferMutex.Unlock();
204 break;
205 }
206 }
207 }
208 SubscriptionMutex.Unlock();
209 }
210
211 extern int GetLSCPCommand( void *buf, int max_size ) {
212 String command = LSCPServer::bufferedCommands[LSCPServer::currentSocket];
213 if (command.size() == 0) { //Parser wants input but we have nothing.
214 strcpy((char*) buf, "\n"); //So give it an empty command
215 return 1; //to keep it happy.
216 }
217
218 if (max_size < command.size()) {
219 std::cerr << "getLSCPCommand: Flex buffer too small, ignoring the command." << std::endl;
220 return 0; //This will never happen
221 }
222
223 strcpy((char*) buf, command.c_str());
224 LSCPServer::bufferedCommands.erase(LSCPServer::currentSocket);
225 return command.size();
226 }
227
228 /**
229 * Will be called to try to read the command from the socket
230 * If command is read, it will return true. Otherwise false is returned.
231 * In any case the received portion (complete or incomplete) is saved into bufferedCommand map.
232 */
233 bool LSCPServer::GetLSCPCommand( std::vector<int>::iterator iter ) {
234 int socket = *iter;
235 char c;
236 int i = 0;
237 while (true) {
238 int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now
239 if (result == 0) { //socket was selected, so 0 here means client has closed the connection
240 CloseConnection(iter);
241 break;
242 }
243 if (result == 1) {
244 if (c == '\r')
245 continue; //Ignore CR
246 if (c == '\n') {
247 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Received \'" + bufferedCommands[socket] + "\' on socket", socket));
248 bufferedCommands[socket] += "\n";
249 return true; //Complete command was read
250 }
251 bufferedCommands[socket] += c;
252 }
253 if (result == -1) {
254 if (errno == EAGAIN) //Would block, try again later.
255 return false;
256 switch(errno) {
257 case EBADF:
258 dmsg(2,("LSCPScanner: The argument s is an invalid descriptor.\n"));
259 break;
260 case ECONNREFUSED:
261 dmsg(2,("LSCPScanner: A remote host refused to allow the network connection (typically because it is not running the requested service).\n"));
262 break;
263 case ENOTCONN:
264 dmsg(2,("LSCPScanner: The socket is associated with a connection-oriented protocol and has not been connected (see connect(2) and accept(2)).\n"));
265 break;
266 case ENOTSOCK:
267 dmsg(2,("LSCPScanner: The argument s does not refer to a socket.\n"));
268 break;
269 case EAGAIN:
270 dmsg(2,("LSCPScanner: The socket is marked non-blocking and the receive operation would block, or a receive timeout had been set and the timeout expired before data was received.\n"));
271 break;
272 case EINTR:
273 dmsg(2,("LSCPScanner: The receive was interrupted by delivery of a signal before any data were available.\n"));
274 break;
275 case EFAULT:
276 dmsg(2,("LSCPScanner: The receive buffer pointer(s) point outside the process's address space.\n"));
277 break;
278 case EINVAL:
279 dmsg(2,("LSCPScanner: Invalid argument passed.\n"));
280 break;
281 case ENOMEM:
282 dmsg(2,("LSCPScanner: Could not allocate memory for recvmsg.\n"));
283 break;
284 default:
285 dmsg(2,("LSCPScanner: Unknown recv() error.\n"));
286 break;
287 }
288 CloseConnection(iter);
289 break;
290 }
291 }
292 return false;
293 }
294
295 /**
296 * Will be called by the parser whenever it wants to send an answer to the
297 * client / frontend.
298 *
299 * @param ReturnMessage - message that will be send to the client
300 */
301 void LSCPServer::AnswerClient(String ReturnMessage) {
302 dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));
303 if (currentSocket != -1) {
304 NotifyMutex.Lock();
305 send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);
306 NotifyMutex.Unlock();
307 }
308 }
309
310 /**
311 * Find a created audio output device index.
312 */
313 int LSCPServer::GetAudioOutputDeviceIndex ( AudioOutputDevice *pDevice )
314 {
315 // Search for the created device to get its index
316 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
317 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
318 for (; iter != devices.end(); iter++) {
319 if (iter->second == pDevice)
320 return iter->first;
321 }
322 // Not found.
323 return -1;
324 }
325
326 /**
327 * Find a created midi input device index.
328 */
329 int LSCPServer::GetMidiInputDeviceIndex ( MidiInputDevice *pDevice )
330 {
331 // Search for the created device to get its index
332 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
333 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
334 for (; iter != devices.end(); iter++) {
335 if (iter->second == pDevice)
336 return iter->first;
337 }
338 // Not found.
339 return -1;
340 }
341
342 String LSCPServer::CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters) {
343 dmsg(2,("LSCPServer: CreateAudioOutputDevice(Driver=%s)\n", Driver.c_str()));
344 LSCPResultSet result;
345 try {
346 AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters);
347 // search for the created device to get its index
348 int index = GetAudioOutputDeviceIndex(pDevice);
349 if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device.");
350 result = index; // success
351 }
352 catch (LinuxSamplerException e) {
353 result.Error(e);
354 }
355 return result.Produce();
356 }
357
358 String LSCPServer::CreateMidiInputDevice(String Driver, std::map<String,String> Parameters) {
359 dmsg(2,("LSCPServer: CreateMidiInputDevice(Driver=%s)\n", Driver.c_str()));
360 LSCPResultSet result;
361 try {
362 MidiInputDevice* pDevice = pSampler->CreateMidiInputDevice(Driver, Parameters);
363 // search for the created device to get its index
364 int index = GetMidiInputDeviceIndex(pDevice);
365 if (index == -1) throw LinuxSamplerException("Internal error: could not find created midi input device.");
366 result = index; // success
367 }
368 catch (LinuxSamplerException e) {
369 result.Error(e);
370 }
371 return result.Produce();
372 }
373
374 String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) {
375 dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex));
376 LSCPResultSet result;
377 try {
378 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
379 if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
380 AudioOutputDevice* pDevice = devices[DeviceIndex];
381 pSampler->DestroyAudioOutputDevice(pDevice);
382 }
383 catch (LinuxSamplerException e) {
384 result.Error(e);
385 }
386 return result.Produce();
387 }
388
389 String LSCPServer::DestroyMidiInputDevice(uint DeviceIndex) {
390 dmsg(2,("LSCPServer: DestroyMidiInputDevice(DeviceIndex=%d)\n", DeviceIndex));
391 LSCPResultSet result;
392 try {
393 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
394 MidiInputDevice* pDevice = devices[DeviceIndex];
395 if (!pDevice) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
396 pSampler->DestroyMidiInputDevice(pDevice);
397 }
398 catch (LinuxSamplerException e) {
399 result.Error(e);
400 }
401 return result.Produce();
402 }
403
404 /**
405 * Will be called by the parser to load an instrument.
406 */
407 String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground) {
408 dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));
409 LSCPResultSet result;
410 try {
411 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
412 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
413 Engine* pEngine = pSamplerChannel->GetEngine();
414 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
415 if (pSamplerChannel->GetAudioOutputDevice() == NULL)
416 throw LinuxSamplerException("No audio output device on channel");
417 if (bBackground) {
418 LSCPLoadInstrument *pLoadInstrument = new LSCPLoadInstrument(pEngine, Filename.c_str(), uiInstrument);
419 pLoadInstrument->StartThread();
420 }
421 else pEngine->LoadInstrument(Filename.c_str(), uiInstrument);
422 }
423 catch (LinuxSamplerException e) {
424 result.Error(e);
425 }
426 return result.Produce();
427 }
428
429 /**
430 * Will be called by the parser to load and deploy an engine.
431 */
432 String LSCPServer::LoadEngine(String EngineName, uint uiSamplerChannel) {
433 dmsg(2,("LSCPServer: LoadEngine(EngineName=%s,SamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel));
434 LSCPResultSet result;
435 try {
436 Engine::type_t type;
437 if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig;
438 else throw LinuxSamplerException("Unknown engine type");
439 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
440 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
441 pSamplerChannel->LoadEngine(type);
442 }
443 catch (LinuxSamplerException e) {
444 result.Error(e);
445 }
446 return result.Produce();
447 }
448
449 /**
450 * Will be called by the parser to get the amount of sampler channels.
451 */
452 String LSCPServer::GetChannels() {
453 dmsg(2,("LSCPServer: GetChannels()\n"));
454 LSCPResultSet result;
455 result.Add(pSampler->SamplerChannels());
456 return result.Produce();
457 }
458
459 /**
460 * Will be called by the parser to add a sampler channel.
461 */
462 String LSCPServer::AddChannel() {
463 dmsg(2,("LSCPServer: AddChannel()\n"));
464 SamplerChannel* pSamplerChannel = pSampler->AddSamplerChannel();
465 LSCPResultSet result(pSamplerChannel->Index());
466 return result.Produce();
467 }
468
469 /**
470 * Will be called by the parser to remove a sampler channel.
471 */
472 String LSCPServer::RemoveChannel(uint uiSamplerChannel) {
473 dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));
474 LSCPResultSet result;
475 pSampler->RemoveSamplerChannel(uiSamplerChannel);
476 return result.Produce();
477 }
478
479 /**
480 * Will be called by the parser to get all available engines.
481 */
482 String LSCPServer::GetAvailableEngines() {
483 dmsg(2,("LSCPServer: GetAvailableEngines()\n"));
484 LSCPResultSet result("GigEngine");
485 return result.Produce();
486 }
487
488 /**
489 * Will be called by the parser to get descriptions for a particular engine.
490 */
491 String LSCPServer::GetEngineInfo(String EngineName) {
492 dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));
493 LSCPResultSet result;
494 try {
495 if ((EngineName == "GigEngine") || (EngineName == "gig")) {
496 Engine* pEngine = new LinuxSampler::gig::Engine;
497 result.Add(pEngine->Description());
498 result.Add(pEngine->Version());
499 delete pEngine;
500 }
501 else throw LinuxSamplerException("Unknown engine type");
502 }
503 catch (LinuxSamplerException e) {
504 result.Error(e);
505 }
506 return result.Produce();
507 }
508
509 /**
510 * Will be called by the parser to get informations about a particular
511 * sampler channel.
512 */
513 String LSCPServer::GetChannelInfo(uint uiSamplerChannel) {
514 dmsg(2,("LSCPServer: GetChannelInfo(SamplerChannel=%d)\n", uiSamplerChannel));
515 LSCPResultSet result;
516 try {
517 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
518 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
519 Engine* pEngine = pSamplerChannel->GetEngine();
520
521 //Defaults values
522 String EngineName = "NONE";
523 float Volume = 0;
524 String InstrumentFileName = "NONE";
525 int InstrumentIndex = -1;
526 int InstrumentStatus = -1;
527
528 if (pEngine) {
529 EngineName = pEngine->EngineName();
530 Volume = pEngine->Volume();
531 InstrumentStatus = pEngine->InstrumentStatus();
532 InstrumentIndex = pEngine->InstrumentIndex();
533 if (InstrumentIndex != -1)
534 InstrumentFileName = pEngine->InstrumentFileName();
535 }
536
537 result.Add("ENGINE_NAME", EngineName);
538 result.Add("VOLUME", Volume);
539
540 //Some not-so-hardcoded stuff to make GUI look good
541 result.Add("AUDIO_OUTPUT_DEVICE", GetAudioOutputDeviceIndex(pSamplerChannel->GetAudioOutputDevice()));
542 result.Add("AUDIO_OUTPUT_CHANNELS", "2");
543 result.Add("AUDIO_OUTPUT_ROUTING", "0,1");
544
545 result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));
546 result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());
547 result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
548
549 result.Add("INSTRUMENT_FILE", InstrumentFileName);
550 result.Add("INSTRUMENT_NR", InstrumentIndex);
551 result.Add("INSTRUMENT_STATUS", InstrumentStatus);
552 }
553 catch (LinuxSamplerException e) {
554 result.Error(e);
555 }
556 return result.Produce();
557 }
558
559 /**
560 * Will be called by the parser to get the amount of active voices on a
561 * particular sampler channel.
562 */
563 String LSCPServer::GetVoiceCount(uint uiSamplerChannel) {
564 dmsg(2,("LSCPServer: GetVoiceCount(SamplerChannel=%d)\n", uiSamplerChannel));
565 LSCPResultSet result;
566 try {
567 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
568 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
569 Engine* pEngine = pSamplerChannel->GetEngine();
570 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
571 result.Add(pEngine->VoiceCount());
572 }
573 catch (LinuxSamplerException e) {
574 result.Error(e);
575 }
576 return result.Produce();
577 }
578
579 /**
580 * Will be called by the parser to get the amount of active disk streams on a
581 * particular sampler channel.
582 */
583 String LSCPServer::GetStreamCount(uint uiSamplerChannel) {
584 dmsg(2,("LSCPServer: GetStreamCount(SamplerChannel=%d)\n", uiSamplerChannel));
585 LSCPResultSet result;
586 try {
587 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
588 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
589 Engine* pEngine = pSamplerChannel->GetEngine();
590 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
591 result.Add(pEngine->DiskStreamCount());
592 }
593 catch (LinuxSamplerException e) {
594 result.Error(e);
595 }
596 return result.Produce();
597 }
598
599 /**
600 * Will be called by the parser to get the buffer fill states of all disk
601 * streams on a particular sampler channel.
602 */
603 String LSCPServer::GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel) {
604 dmsg(2,("LSCPServer: GetBufferFill(ResponseType=%d, SamplerChannel=%d)\n", ResponseType, uiSamplerChannel));
605 LSCPResultSet result;
606 try {
607 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
608 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
609 Engine* pEngine = pSamplerChannel->GetEngine();
610 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
611 if (!pEngine->DiskStreamSupported())
612 result.Add("NA");
613 else {
614 switch (ResponseType) {
615 case fill_response_bytes:
616 result.Add(pEngine->DiskStreamBufferFillBytes());
617 break;
618 case fill_response_percentage:
619 result.Add(pEngine->DiskStreamBufferFillPercentage());
620 break;
621 default:
622 throw LinuxSamplerException("Unknown fill response type");
623 }
624 }
625 }
626 catch (LinuxSamplerException e) {
627 result.Error(e);
628 }
629 return result.Produce();
630 }
631
632 String LSCPServer::GetAvailableAudioOutputDrivers() {
633 dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));
634 LSCPResultSet result;
635 try {
636 String s = AudioOutputDeviceFactory::AvailableDriversAsString();
637 result.Add(s);
638 }
639 catch (LinuxSamplerException e) {
640 result.Error(e);
641 }
642 return result.Produce();
643 }
644
645 String LSCPServer::GetAvailableMidiInputDrivers() {
646 dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));
647 LSCPResultSet result;
648 try {
649 String s = MidiInputDeviceFactory::AvailableDriversAsString();
650 result.Add(s);
651 }
652 catch (LinuxSamplerException e) {
653 result.Error(e);
654 }
655 return result.Produce();
656 }
657
658 String LSCPServer::GetMidiInputDriverInfo(String Driver) {
659 dmsg(2,("LSCPServer: GetMidiInputDriverInfo(Driver=%s)\n",Driver.c_str()));
660 LSCPResultSet result;
661 try {
662 result.Add("DESCRIPTION", MidiInputDeviceFactory::GetDriverDescription(Driver));
663 result.Add("VERSION", MidiInputDeviceFactory::GetDriverVersion(Driver));
664
665 std::map<String,DeviceCreationParameter*> parameters = MidiInputDeviceFactory::GetAvailableDriverParameters(Driver);
666 if (parameters.size()) { // if there are parameters defined for this driver
667 String s;
668 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
669 for (;iter != parameters.end(); iter++) {
670 if (s != "") s += ",";
671 s += iter->first;
672 }
673 result.Add("PARAMETERS", s);
674 }
675 }
676 catch (LinuxSamplerException e) {
677 result.Error(e);
678 }
679 return result.Produce();
680 }
681
682 String LSCPServer::GetAudioOutputDriverInfo(String Driver) {
683 dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));
684 LSCPResultSet result;
685 try {
686 result.Add("DESCRIPTION", AudioOutputDeviceFactory::GetDriverDescription(Driver));
687 result.Add("VERSION", AudioOutputDeviceFactory::GetDriverVersion(Driver));
688
689 std::map<String,DeviceCreationParameter*> parameters = AudioOutputDeviceFactory::GetAvailableDriverParameters(Driver);
690 if (parameters.size()) { // if there are parameters defined for this driver
691 String s;
692 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
693 for (;iter != parameters.end(); iter++) {
694 if (s != "") s += ",";
695 s += iter->first;
696 }
697 result.Add("PARAMETERS", s);
698 }
699 }
700 catch (LinuxSamplerException e) {
701 result.Error(e);
702 }
703 return result.Produce();
704 }
705
706 String LSCPServer::GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
707 dmsg(2,("LSCPServer: GetMidiInputDriverParameterInfo(Driver=%s,Parameter=%s)\n",Driver.c_str(),Parameter.c_str()));
708 LSCPResultSet result;
709 try {
710 DeviceCreationParameter* pParameter = MidiInputDeviceFactory::GetDriverParameter(Driver, Parameter);
711 result.Add("TYPE", pParameter->Type());
712 result.Add("DESCRIPTION", pParameter->Description());
713 result.Add("MANDATORY", pParameter->Mandatory());
714 result.Add("FIX", pParameter->Fix());
715 result.Add("MULTIPLICITY", pParameter->Multiplicity());
716 if (pParameter->Depends()) result.Add("DEPENDS", pParameter->Depends());
717 if (pParameter->Default()) result.Add("DEFAULT", pParameter->Default());
718 if (pParameter->RangeMin()) result.Add("RANGE_MIN", pParameter->RangeMin());
719 if (pParameter->RangeMax()) result.Add("RANGE_MAX", pParameter->RangeMax());
720 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities());
721 }
722 catch (LinuxSamplerException e) {
723 result.Error(e);
724 }
725 return result.Produce();
726 }
727
728 String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
729 dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s)\n",Driver.c_str(),Parameter.c_str()));
730 LSCPResultSet result;
731 try {
732 DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);
733 result.Add("TYPE", pParameter->Type());
734 result.Add("DESCRIPTION", pParameter->Description());
735 result.Add("MANDATORY", pParameter->Mandatory());
736 result.Add("FIX", pParameter->Fix());
737 result.Add("MULTIPLICITY", pParameter->Multiplicity());
738 if (pParameter->Depends()) result.Add("DEPENDS", pParameter->Depends());
739 if (pParameter->Default()) result.Add("DEFAULT", pParameter->Default());
740 if (pParameter->RangeMin()) result.Add("RANGE_MIN", pParameter->RangeMin());
741 if (pParameter->RangeMax()) result.Add("RANGE_MAX", pParameter->RangeMax());
742 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities());
743 }
744 catch (LinuxSamplerException e) {
745 result.Error(e);
746 }
747 return result.Produce();
748 }
749
750 String LSCPServer::GetAudioOutputDeviceCount() {
751 dmsg(2,("LSCPServer: GetAudioOutputDeviceCount()\n"));
752 LSCPResultSet result;
753 try {
754 uint count = pSampler->AudioOutputDevices();
755 result.Add(count); // success
756 }
757 catch (LinuxSamplerException e) {
758 result.Error(e);
759 }
760 return result.Produce();
761 }
762
763 String LSCPServer::GetMidiInputDeviceCount() {
764 dmsg(2,("LSCPServer: GetMidiInputDeviceCount()\n"));
765 LSCPResultSet result;
766 try {
767 uint count = pSampler->MidiInputDevices();
768 result.Add(count); // success
769 }
770 catch (LinuxSamplerException e) {
771 result.Error(e);
772 }
773 return result.Produce();
774 }
775
776 String LSCPServer::GetAudioOutputDevices() {
777 dmsg(2,("LSCPServer: GetAudioOutputDevices()\n"));
778 LSCPResultSet result;
779 try {
780 String s;
781 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
782 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
783 for (; iter != devices.end(); iter++) {
784 if (s != "") s += ",";
785 s += ToString(iter->first);
786 }
787 result.Add(s);
788 }
789 catch (LinuxSamplerException e) {
790 result.Error(e);
791 }
792 return result.Produce();
793 }
794
795 String LSCPServer::GetMidiInputDevices() {
796 dmsg(2,("LSCPServer: GetMidiInputDevices()\n"));
797 LSCPResultSet result;
798 try {
799 String s;
800 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
801 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
802 for (; iter != devices.end(); iter++) {
803 if (s != "") s += ",";
804 s += ToString(iter->first);
805 }
806 result.Add(s);
807 }
808 catch (LinuxSamplerException e) {
809 result.Error(e);
810 }
811 return result.Produce();
812 }
813
814 String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {
815 dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
816 LSCPResultSet result;
817 try {
818 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
819 if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
820 AudioOutputDevice* pDevice = devices[DeviceIndex];
821 result.Add("driver", pDevice->Driver());
822 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
823 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
824 for (; iter != parameters.end(); iter++) {
825 result.Add(iter->first, iter->second->Value());
826 }
827 }
828 catch (LinuxSamplerException e) {
829 result.Error(e);
830 }
831 return result.Produce();
832 }
833
834 String LSCPServer::GetMidiInputDeviceInfo(uint DeviceIndex) {
835 dmsg(2,("LSCPServer: GetMidiInputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
836 LSCPResultSet result;
837 try {
838 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
839 MidiInputDevice* pDevice = devices[DeviceIndex];
840 if (!pDevice) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
841 result.Add("driver", pDevice->Driver());
842 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
843 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
844 for (; iter != parameters.end(); iter++) {
845 result.Add(iter->first, iter->second->Value());
846 }
847 }
848 catch (LinuxSamplerException e) {
849 result.Error(e);
850 }
851 return result.Produce();
852 }
853 String LSCPServer::GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex) {
854 dmsg(2,("LSCPServer: GetMidiInputPortInfo(DeviceIndex=%d, PortIndex=%d)\n",DeviceIndex, PortIndex));
855 LSCPResultSet result;
856 try {
857 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
858 MidiInputDevice* pDevice = devices[DeviceIndex];
859 if (!pDevice) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
860 MidiInputDevice::MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
861 if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
862 std::map<String,DeviceCreationParameter*> parameters = pMidiInputPort->DeviceParameters();
863 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
864 for (; iter != parameters.end(); iter++) {
865 result.Add(iter->first, iter->second->Value());
866 }
867 }
868 catch (LinuxSamplerException e) {
869 result.Error(e);
870 }
871 return result.Produce();
872 }
873
874 String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {
875 dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));
876 LSCPResultSet result;
877 try {
878 // get audio output device
879 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
880 if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
881 AudioOutputDevice* pDevice = devices[DeviceId];
882
883 // get audio channel
884 AudioChannel* pChannel = pDevice->Channel(ChannelId);
885 if (!pChannel) throw LinuxSamplerException("Audio ouotput device does not have channel " + ToString(ChannelId) + ".");
886
887 // return the values of all audio channel parameters
888 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
889 std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
890 for (; iter != parameters.end(); iter++) {
891 result.Add(iter->first, iter->second->Value());
892 }
893 }
894 catch (LinuxSamplerException e) {
895 result.Error(e);
896 }
897 return result.Produce();
898 }
899
900 String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {
901 dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));
902 LSCPResultSet result;
903 try {
904 // get audio output device
905 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
906 if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
907 AudioOutputDevice* pDevice = devices[DeviceId];
908
909 // get audio channel
910 AudioChannel* pChannel = pDevice->Channel(ChannelId);
911 if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + ".");
912
913 // get desired audio channel parameter
914 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
915 if (!parameters[ParameterName]) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");
916 DeviceRuntimeParameter* pParameter = parameters[ParameterName];
917
918 // return all fields of this audio channel parameter
919 result.Add("TYPE", pParameter->Type());
920 result.Add("DESCRIPTION", pParameter->Description());
921 result.Add("FIX", pParameter->Fix());
922 result.Add("MULTIPLICITY", pParameter->Multiplicity());
923 if (pParameter->RangeMin()) result.Add("RANGE_MIN", pParameter->RangeMin());
924 if (pParameter->RangeMax()) result.Add("RANGE_MAX", pParameter->RangeMax());
925 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities());
926 }
927 catch (LinuxSamplerException e) {
928 result.Error(e);
929 }
930 return result.Produce();
931 }
932
933 String LSCPServer::SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal) {
934 dmsg(2,("LSCPServer: SetAudioOutputChannelParameter(DeviceId=%d,ChannelId=%d,ParamKey=%s,ParamVal=%s)\n",DeviceId,ChannelId,ParamKey.c_str(),ParamVal.c_str()));
935 LSCPResultSet result;
936 try {
937 // get audio output device
938 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
939 if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
940 AudioOutputDevice* pDevice = devices[DeviceId];
941
942 // get audio channel
943 AudioChannel* pChannel = pDevice->Channel(ChannelId);
944 if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + ".");
945
946 // get desired audio channel parameter
947 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
948 if (!parameters[ParamKey]) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");
949 DeviceRuntimeParameter* pParameter = parameters[ParamKey];
950
951 // set new channel parameter value
952 pParameter->SetValue(ParamVal);
953 }
954 catch (LinuxSamplerException e) {
955 result.Error(e);
956 }
957 return result.Produce();
958 }
959
960 String LSCPServer::SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
961 dmsg(2,("LSCPServer: SetAudioOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
962 LSCPResultSet result;
963 try {
964 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
965 if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
966 AudioOutputDevice* pDevice = devices[DeviceIndex];
967 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
968 if (!parameters[ParamKey]) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
969 parameters[ParamKey]->SetValue(ParamVal);
970 }
971 catch (LinuxSamplerException e) {
972 result.Error(e);
973 }
974 return result.Produce();
975 }
976
977 String LSCPServer::SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
978 dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
979 LSCPResultSet result;
980 try {
981 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
982 if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
983 MidiInputDevice* pDevice = devices[DeviceIndex];
984 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
985 if (!parameters[ParamKey]) throw LinuxSamplerException("MIDI input device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
986 parameters[ParamKey]->SetValue(ParamVal);
987 }
988 catch (LinuxSamplerException e) {
989 result.Error(e);
990 }
991 return result.Produce();
992 }
993
994 String LSCPServer::SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal) {
995 dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
996 LSCPResultSet result;
997 try {
998 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
999 MidiInputDevice* pDevice = devices[DeviceIndex];
1000 if (!pDevice) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1001 MidiInputDevice::MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
1002 if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
1003 std::map<String,DeviceCreationParameter*> parameters = pMidiInputPort->DeviceParameters();
1004 if (!parameters[ParamKey]) throw LinuxSamplerException("MIDI input device " + ToString(PortIndex) + " does not have a parameter '" + ParamKey + "'");
1005 parameters[ParamKey]->SetValue(ParamVal);
1006 }
1007 catch (LinuxSamplerException e) {
1008 result.Error(e);
1009 }
1010 return result.Produce();
1011 }
1012
1013 /**
1014 * Will be called by the parser to change the audio output channel for
1015 * playback on a particular sampler channel.
1016 */
1017 String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {
1018 dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));
1019 return "ERR:0:Not implemented yet.\r\n"; //FIXME: Add support for this in resultset class?
1020 }
1021
1022 String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint uiSamplerChannel) {
1023 dmsg(2,("LSCPServer: SetAudiotOutputDevice(AudioDeviceId=%d, SamplerChannel=%d)\n",AudioDeviceId,uiSamplerChannel));
1024 LSCPResultSet result;
1025 try {
1026 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1027 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1028 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1029 AudioOutputDevice* pDevice = devices[AudioDeviceId];
1030 if (!pDevice) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId));
1031 pSamplerChannel->SetAudioOutputDevice(pDevice);
1032 }
1033 catch (LinuxSamplerException e) {
1034 result.Error(e);
1035 }
1036 return result.Produce();
1037 }
1038
1039 String LSCPServer::SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel) {
1040 dmsg(2,("LSCPServer: SetAudioOutputType(String AudioOutputDriver=%s, SamplerChannel=%d)\n",AudioOutputDriver.c_str(),uiSamplerChannel));
1041 LSCPResultSet result;
1042 try {
1043 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1044 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1045 // Driver type name aliasing...
1046 if (AudioOutputDriver == "ALSA") AudioOutputDriver = "Alsa";
1047 if (AudioOutputDriver == "JACK") AudioOutputDriver = "Jack";
1048 // Check if there's one audio output device already created
1049 // for the intended audio driver type (AudioOutputDriver)...
1050 AudioOutputDevice *pDevice = NULL;
1051 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1052 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
1053 for (; iter != devices.end(); iter++) {
1054 if ((iter->second)->Driver() == AudioOutputDriver) {
1055 pDevice = iter->second;
1056 break;
1057 }
1058 }
1059 // If it doesn't exist, create a new one with default parameters...
1060 if (pDevice == NULL) {
1061 std::map<String,String> params;
1062 pDevice = pSampler->CreateAudioOutputDevice(AudioOutputDriver, params);
1063 }
1064 // Must have a device...
1065 if (pDevice == NULL)
1066 throw LinuxSamplerException("Internal error: could not create audio output device.");
1067 // Set it as the current channel device...
1068 pSamplerChannel->SetAudioOutputDevice(pDevice);
1069 }
1070 catch (LinuxSamplerException e) {
1071 result.Error(e);
1072 }
1073 return result.Produce();
1074 }
1075
1076 String LSCPServer::SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel) {
1077 dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIPort=%d, SamplerChannel=%d)\n",MIDIPort,uiSamplerChannel));
1078 LSCPResultSet result;
1079 try {
1080 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1081 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1082 pSamplerChannel->SetMidiInputPort(MIDIPort);
1083 }
1084 catch (LinuxSamplerException e) {
1085 result.Error(e);
1086 }
1087 return result.Produce();
1088 }
1089
1090 String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {
1091 dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n",MIDIChannel,uiSamplerChannel));
1092 LSCPResultSet result;
1093 try {
1094 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1095 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1096 pSamplerChannel->SetMidiInputChannel((MidiInputDevice::MidiInputPort::midi_chan_t) MIDIChannel);
1097 }
1098 catch (LinuxSamplerException e) {
1099 result.Error(e);
1100 }
1101 return result.Produce();
1102 }
1103
1104 String LSCPServer::SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel) {
1105 dmsg(2,("LSCPServer: SetMIDIInputDevice(MIDIDeviceId=%d, SamplerChannel=%d)\n",MIDIDeviceId,uiSamplerChannel));
1106 LSCPResultSet result;
1107 try {
1108 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1109 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1110 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1111 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1112 if (!pDevice) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1113 pSamplerChannel->SetMidiInputDevice(pDevice);
1114 }
1115 catch (LinuxSamplerException e) {
1116 result.Error(e);
1117 }
1118 return result.Produce();
1119 }
1120
1121 String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {
1122 dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));
1123 LSCPResultSet result;
1124 try {
1125 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1126 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1127 // Driver type name aliasing...
1128 if (MidiInputDriver == "ALSA") MidiInputDriver = "Alsa";
1129 // Check if there's one MIDI input device already created
1130 // for the intended MIDI driver type (MidiInputDriver)...
1131 MidiInputDevice *pDevice = NULL;
1132 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1133 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
1134 for (; iter != devices.end(); iter++) {
1135 if ((iter->second)->Driver() == MidiInputDriver) {
1136 pDevice = iter->second;
1137 break;
1138 }
1139 }
1140 // If it doesn't exist, create a new one with default parameters...
1141 if (pDevice == NULL) {
1142 std::map<String,String> params;
1143 pDevice = pSampler->CreateMidiInputDevice(MidiInputDriver, params);
1144 // Make it with at least one initial port.
1145 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1146 parameters["ports"]->SetValue("1");
1147 }
1148 // Must have a device...
1149 if (pDevice == NULL)
1150 throw LinuxSamplerException("Internal error: could not create MIDI input device.");
1151 // Set it as the current channel device...
1152 pSamplerChannel->SetMidiInputDevice(pDevice);
1153 }
1154 catch (LinuxSamplerException e) {
1155 result.Error(e);
1156 }
1157 return result.Produce();
1158 }
1159
1160 /**
1161 * Will be called by the parser to change the MIDI input device, port and channel on which
1162 * engine of a particular sampler channel should listen to.
1163 */
1164 String LSCPServer::SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel) {
1165 dmsg(2,("LSCPServer: SetMIDIInput(MIDIDeviceId=%d, MIDIPort=%d, MIDIChannel=%d, SamplerChannel=%d)\n", MIDIDeviceId, MIDIPort, MIDIChannel, uiSamplerChannel));
1166 LSCPResultSet result;
1167 try {
1168 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1169 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1170 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1171 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1172 if (!pDevice) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1173 pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (MidiInputDevice::MidiInputPort::midi_chan_t) MIDIChannel);
1174 }
1175 catch (LinuxSamplerException e) {
1176 result.Error(e);
1177 }
1178 return result.Produce();
1179 }
1180
1181 /**
1182 * Will be called by the parser to change the global volume factor on a
1183 * particular sampler channel.
1184 */
1185 String LSCPServer::SetVolume(double Volume, uint uiSamplerChannel) {
1186 dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", Volume, uiSamplerChannel));
1187 LSCPResultSet result;
1188 try {
1189 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1190 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
1191 Engine* pEngine = pSamplerChannel->GetEngine();
1192 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
1193 pEngine->Volume(Volume);
1194 }
1195 catch (LinuxSamplerException e) {
1196 result.Error(e);
1197 }
1198 return result.Produce();
1199 }
1200
1201 /**
1202 * Will be called by the parser to reset a particular sampler channel.
1203 */
1204 String LSCPServer::ResetChannel(uint uiSamplerChannel) {
1205 dmsg(2,("LSCPServer: ResetChannel(SamplerChannel=%d)\n", uiSamplerChannel));
1206 LSCPResultSet result;
1207 try {
1208 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1209 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
1210 Engine* pEngine = pSamplerChannel->GetEngine();
1211 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
1212 pEngine->Reset();
1213 }
1214 catch (LinuxSamplerException e) {
1215 result.Error(e);
1216 }
1217 return result.Produce();
1218 }
1219
1220 /**
1221 * Will be called by the parser to subscribe a client (frontend) on the
1222 * server for receiving event messages.
1223 */
1224 String LSCPServer::SubscribeNotification(LSCPEvent::event_t type) {
1225 dmsg(2,("LSCPServer: SubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1226 LSCPResultSet result;
1227 SubscriptionMutex.Lock();
1228 eventSubscriptions[type].push_back(currentSocket);
1229 SubscriptionMutex.Unlock();
1230 return result.Produce();
1231 }
1232
1233 /**
1234 * Will be called by the parser to unsubscribe a client on the server
1235 * for not receiving further event messages.
1236 */
1237 String LSCPServer::UnsubscribeNotification(LSCPEvent::event_t type) {
1238 dmsg(2,("LSCPServer: UnsubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1239 LSCPResultSet result;
1240 SubscriptionMutex.Lock();
1241 eventSubscriptions[type].remove(currentSocket);
1242 SubscriptionMutex.Unlock();
1243 return result.Produce();
1244 }
1245
1246
1247 // Instrument loader constructor.
1248 LSCPLoadInstrument::LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument)
1249 : Thread(false, 0, -4)
1250 {
1251 this->pEngine = pEngine;
1252 this->Filename = Filename;
1253 this->uiInstrument = uiInstrument;
1254 }
1255
1256 // Instrument loader process.
1257 int LSCPLoadInstrument::Main()
1258 {
1259 try {
1260 pEngine->LoadInstrument(Filename.c_str(), uiInstrument);
1261 }
1262
1263 catch (LinuxSamplerException e) {
1264 e.PrintMessage();
1265 }
1266
1267 // Always re-enable the engine.
1268 pEngine->Enable();
1269
1270 // FIXME: Shoot ourselves on the foot?
1271 delete this;
1272 }

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