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

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Revision 223 - (show annotations) (download)
Sat Aug 21 11:43:53 2004 UTC (15 years, 5 months ago) by schoenebeck
File size: 57756 byte(s)
* bug fixes in LSCP server (returned '1'/'0' instead of 'true'/'false' for
  binary fields, spuriously created new elements in maps while trying to
  find map members)

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 "../drivers/audio/AudioOutputDeviceFactory.h"
29 #include "../drivers/midi/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<yyparse_param_t> LSCPServer::Sessions = std::vector<yyparse_param_t>();
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 /**
65 * Blocks the calling thread until the LSCP Server is initialized and
66 * accepting socket connections, if the server is already initialized then
67 * this method will return immediately.
68 * @param TimeoutSeconds - optional: max. wait time in seconds
69 * (default: 0s)
70 * @param TimeoutNanoSeconds - optional: max wait time in nano seconds
71 * (default: 0ns)
72 * @returns 0 on success, a value less than 0 if timeout exceeded
73 */
74 int LSCPServer::WaitUntilInitialized(long TimeoutSeconds, long TimeoutNanoSeconds) {
75 return Initialized.WaitAndUnlockIf(false, TimeoutSeconds, TimeoutNanoSeconds);
76 }
77
78 int LSCPServer::Main() {
79 int hSocket = socket(AF_INET, SOCK_STREAM, 0);
80 if (hSocket < 0) {
81 std::cerr << "LSCPServer: Could not create server socket." << std::endl;
82 //return -1;
83 exit(EXIT_FAILURE);
84 }
85
86 SocketAddress.sin_family = AF_INET;
87 SocketAddress.sin_port = htons(LSCP_PORT);
88 SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);
89
90 if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
91 std::cerr << "LSCPServer: Could not bind server socket." << std::endl;
92 close(hSocket);
93 //return -1;
94 exit(EXIT_FAILURE);
95 }
96
97 listen(hSocket, 1);
98 Initialized.Set(true);
99
100 // now wait for client connections and handle their requests
101 sockaddr_in client;
102 int length = sizeof(client);
103 FD_ZERO(&fdSet);
104 FD_SET(hSocket, &fdSet);
105 int maxSessions = hSocket;
106
107 while (true) {
108 fd_set selectSet = fdSet;
109 int retval = select(maxSessions+1, &selectSet, NULL, NULL, NULL);
110 if (retval == 0)
111 continue; //Nothing try again
112 if (retval == -1) {
113 std::cerr << "LSCPServer: Socket select error." << std::endl;
114 close(hSocket);
115 exit(EXIT_FAILURE);
116 }
117
118 //Accept new connections now (if any)
119 if (FD_ISSET(hSocket, &selectSet)) {
120 int socket = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length);
121 if (socket < 0) {
122 std::cerr << "LSCPServer: Client connection failed." << std::endl;
123 exit(EXIT_FAILURE);
124 }
125
126 if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
127 std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
128 exit(EXIT_FAILURE);
129 }
130
131 // Parser initialization
132 yyparse_param_t yyparse_param;
133 yyparse_param.pServer = this;
134 yyparse_param.hSession = socket;
135
136 Sessions.push_back(yyparse_param);
137 FD_SET(socket, &fdSet);
138 if (socket > maxSessions)
139 maxSessions = socket;
140 dmsg(1,("LSCPServer: Client connection established on socket:%d.\n", socket));
141 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection established on socket", socket));
142 continue; //Maybe this was the only selected socket, better select again
143 }
144
145 //Something was selected and it was not the hSocket, so it must be some command(s) coming.
146 for (std::vector<yyparse_param_t>::iterator iter = Sessions.begin(); iter != Sessions.end(); iter++) {
147 if (FD_ISSET((*iter).hSession, &selectSet)) { //Was it this socket?
148 if (GetLSCPCommand(iter)) { //Have we read the entire command?
149 dmsg(3,("LSCPServer: Got command on socket %d, calling parser.\n", currentSocket));
150 int dummy; // just a temporary hack to fulfill the restart() function prototype
151 restart(NULL, dummy); // restart the 'scanner'
152 currentSocket = (*iter).hSession; //a hack
153 if ((*iter).bVerbose) { // if echo mode enabled
154 AnswerClient(bufferedCommands[currentSocket]);
155 }
156 int result = yyparse(&(*iter));
157 currentSocket = -1; //continuation of a hack
158 dmsg(3,("LSCPServer: Done parsing on socket %d.\n", currentSocket));
159 if (result == LSCP_QUIT) { //Was it a quit command by any chance?
160 CloseConnection(iter);
161 }
162 }
163 //socket may have been closed, iter may be invalid, get out of the loop for now.
164 //we'll be back if there is data.
165 break;
166 }
167 }
168
169 //Now let's deliver late notifies (if any)
170 NotifyBufferMutex.Lock();
171 for (std::map<int,String>::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) {
172 send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), 0);
173 bufferedNotifies.erase(iterNotify);
174 }
175 NotifyBufferMutex.Unlock();
176 }
177 }
178
179 void LSCPServer::CloseConnection( std::vector<yyparse_param_t>::iterator iter ) {
180 int socket = (*iter).hSession;
181 dmsg(1,("LSCPServer: Client connection terminated on socket:%d.\n",socket));
182 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection terminated on socket", socket));
183 Sessions.erase(iter);
184 FD_CLR(socket, &fdSet);
185 SubscriptionMutex.Lock(); //Must unsubscribe this socket from all events (if any)
186 for (std::map< LSCPEvent::event_t, std::list<int> >::iterator iter = eventSubscriptions.begin(); iter != eventSubscriptions.end(); iter++) {
187 iter->second.remove(socket);
188 }
189 SubscriptionMutex.Unlock();
190 NotifyMutex.Lock();
191 bufferedCommands.erase(socket);
192 bufferedNotifies.erase(socket);
193 close(socket);
194 NotifyMutex.Unlock();
195 }
196
197 void LSCPServer::SendLSCPNotify( LSCPEvent event ) {
198 SubscriptionMutex.Lock();
199 if (eventSubscriptions.count(event.GetType()) == 0) {
200 SubscriptionMutex.Unlock(); //Nobody is subscribed to this event
201 return;
202 }
203 std::list<int>::iterator iter = eventSubscriptions[event.GetType()].begin();
204 std::list<int>::iterator end = eventSubscriptions[event.GetType()].end();
205 String notify = event.Produce();
206
207 while (true) {
208 if (NotifyMutex.Trylock()) {
209 for(;iter != end; iter++)
210 send(*iter, notify.c_str(), notify.size(), 0);
211 NotifyMutex.Unlock();
212 break;
213 } else {
214 if (NotifyBufferMutex.Trylock()) {
215 for(;iter != end; iter++)
216 bufferedNotifies[*iter] += notify;
217 NotifyBufferMutex.Unlock();
218 break;
219 }
220 }
221 }
222 SubscriptionMutex.Unlock();
223 }
224
225 extern int GetLSCPCommand( void *buf, int max_size ) {
226 String command = LSCPServer::bufferedCommands[LSCPServer::currentSocket];
227 if (command.size() == 0) { //Parser wants input but we have nothing.
228 strcpy((char*) buf, "\n"); //So give it an empty command
229 return 1; //to keep it happy.
230 }
231
232 if (max_size < command.size()) {
233 std::cerr << "getLSCPCommand: Flex buffer too small, ignoring the command." << std::endl;
234 return 0; //This will never happen
235 }
236
237 strcpy((char*) buf, command.c_str());
238 LSCPServer::bufferedCommands.erase(LSCPServer::currentSocket);
239 return command.size();
240 }
241
242 /**
243 * Will be called to try to read the command from the socket
244 * If command is read, it will return true. Otherwise false is returned.
245 * In any case the received portion (complete or incomplete) is saved into bufferedCommand map.
246 */
247 bool LSCPServer::GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter ) {
248 int socket = (*iter).hSession;
249 char c;
250 int i = 0;
251 while (true) {
252 int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now
253 if (result == 0) { //socket was selected, so 0 here means client has closed the connection
254 CloseConnection(iter);
255 break;
256 }
257 if (result == 1) {
258 if (c == '\r')
259 continue; //Ignore CR
260 if (c == '\n') {
261 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Received \'" + bufferedCommands[socket] + "\' on socket", socket));
262 bufferedCommands[socket] += "\n";
263 return true; //Complete command was read
264 }
265 bufferedCommands[socket] += c;
266 }
267 if (result == -1) {
268 if (errno == EAGAIN) //Would block, try again later.
269 return false;
270 switch(errno) {
271 case EBADF:
272 dmsg(2,("LSCPScanner: The argument s is an invalid descriptor.\n"));
273 break;
274 case ECONNREFUSED:
275 dmsg(2,("LSCPScanner: A remote host refused to allow the network connection (typically because it is not running the requested service).\n"));
276 break;
277 case ENOTCONN:
278 dmsg(2,("LSCPScanner: The socket is associated with a connection-oriented protocol and has not been connected (see connect(2) and accept(2)).\n"));
279 break;
280 case ENOTSOCK:
281 dmsg(2,("LSCPScanner: The argument s does not refer to a socket.\n"));
282 break;
283 case EAGAIN:
284 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"));
285 break;
286 case EINTR:
287 dmsg(2,("LSCPScanner: The receive was interrupted by delivery of a signal before any data were available.\n"));
288 break;
289 case EFAULT:
290 dmsg(2,("LSCPScanner: The receive buffer pointer(s) point outside the process's address space.\n"));
291 break;
292 case EINVAL:
293 dmsg(2,("LSCPScanner: Invalid argument passed.\n"));
294 break;
295 case ENOMEM:
296 dmsg(2,("LSCPScanner: Could not allocate memory for recvmsg.\n"));
297 break;
298 default:
299 dmsg(2,("LSCPScanner: Unknown recv() error.\n"));
300 break;
301 }
302 CloseConnection(iter);
303 break;
304 }
305 }
306 return false;
307 }
308
309 /**
310 * Will be called by the parser whenever it wants to send an answer to the
311 * client / frontend.
312 *
313 * @param ReturnMessage - message that will be send to the client
314 */
315 void LSCPServer::AnswerClient(String ReturnMessage) {
316 dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));
317 if (currentSocket != -1) {
318 NotifyMutex.Lock();
319 send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);
320 NotifyMutex.Unlock();
321 }
322 }
323
324 /**
325 * Find a created audio output device index.
326 */
327 int LSCPServer::GetAudioOutputDeviceIndex ( AudioOutputDevice *pDevice )
328 {
329 // Search for the created device to get its index
330 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
331 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
332 for (; iter != devices.end(); iter++) {
333 if (iter->second == pDevice)
334 return iter->first;
335 }
336 // Not found.
337 return -1;
338 }
339
340 /**
341 * Find a created midi input device index.
342 */
343 int LSCPServer::GetMidiInputDeviceIndex ( MidiInputDevice *pDevice )
344 {
345 // Search for the created device to get its index
346 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
347 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
348 for (; iter != devices.end(); iter++) {
349 if (iter->second == pDevice)
350 return iter->first;
351 }
352 // Not found.
353 return -1;
354 }
355
356 String LSCPServer::CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters) {
357 dmsg(2,("LSCPServer: CreateAudioOutputDevice(Driver=%s)\n", Driver.c_str()));
358 LSCPResultSet result;
359 try {
360 AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters);
361 // search for the created device to get its index
362 int index = GetAudioOutputDeviceIndex(pDevice);
363 if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device.");
364 result = index; // success
365 }
366 catch (LinuxSamplerException e) {
367 result.Error(e);
368 }
369 return result.Produce();
370 }
371
372 String LSCPServer::CreateMidiInputDevice(String Driver, std::map<String,String> Parameters) {
373 dmsg(2,("LSCPServer: CreateMidiInputDevice(Driver=%s)\n", Driver.c_str()));
374 LSCPResultSet result;
375 try {
376 MidiInputDevice* pDevice = pSampler->CreateMidiInputDevice(Driver, Parameters);
377 // search for the created device to get its index
378 int index = GetMidiInputDeviceIndex(pDevice);
379 if (index == -1) throw LinuxSamplerException("Internal error: could not find created midi input device.");
380 result = index; // success
381 }
382 catch (LinuxSamplerException e) {
383 result.Error(e);
384 }
385 return result.Produce();
386 }
387
388 String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) {
389 dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex));
390 LSCPResultSet result;
391 try {
392 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
393 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
394 AudioOutputDevice* pDevice = devices[DeviceIndex];
395 pSampler->DestroyAudioOutputDevice(pDevice);
396 }
397 catch (LinuxSamplerException e) {
398 result.Error(e);
399 }
400 return result.Produce();
401 }
402
403 String LSCPServer::DestroyMidiInputDevice(uint DeviceIndex) {
404 dmsg(2,("LSCPServer: DestroyMidiInputDevice(DeviceIndex=%d)\n", DeviceIndex));
405 LSCPResultSet result;
406 try {
407 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
408 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
409 MidiInputDevice* pDevice = devices[DeviceIndex];
410 pSampler->DestroyMidiInputDevice(pDevice);
411 }
412 catch (LinuxSamplerException e) {
413 result.Error(e);
414 }
415 return result.Produce();
416 }
417
418 /**
419 * Will be called by the parser to load an instrument.
420 */
421 String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground) {
422 dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));
423 LSCPResultSet result;
424 try {
425 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
426 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
427 Engine* pEngine = pSamplerChannel->GetEngine();
428 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
429 if (!pSamplerChannel->GetAudioOutputDevice())
430 throw LinuxSamplerException("No audio output device on channel");
431 if (bBackground) {
432 LSCPLoadInstrument *pLoadInstrument = new LSCPLoadInstrument(pEngine, Filename.c_str(), uiInstrument);
433 pLoadInstrument->StartThread();
434 }
435 else pEngine->LoadInstrument(Filename.c_str(), uiInstrument);
436 }
437 catch (LinuxSamplerException e) {
438 result.Error(e);
439 }
440 return result.Produce();
441 }
442
443 /**
444 * Will be called by the parser to load and deploy an engine.
445 */
446 String LSCPServer::LoadEngine(String EngineName, uint uiSamplerChannel) {
447 dmsg(2,("LSCPServer: LoadEngine(EngineName=%s,SamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel));
448 LSCPResultSet result;
449 try {
450 Engine::type_t type;
451 if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig;
452 else throw LinuxSamplerException("Unknown engine type");
453 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
454 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
455 pSamplerChannel->LoadEngine(type);
456 }
457 catch (LinuxSamplerException e) {
458 result.Error(e);
459 }
460 return result.Produce();
461 }
462
463 /**
464 * Will be called by the parser to get the amount of sampler channels.
465 */
466 String LSCPServer::GetChannels() {
467 dmsg(2,("LSCPServer: GetChannels()\n"));
468 LSCPResultSet result;
469 result.Add(pSampler->SamplerChannels());
470 return result.Produce();
471 }
472
473 /**
474 * Will be called by the parser to get the list of sampler channels.
475 */
476 String LSCPServer::ListChannels() {
477 dmsg(2,("LSCPServer: ListChannels()\n"));
478 String list;
479 std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
480 std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
481 for (; iter != channels.end(); iter++) {
482 if (list != "") list += ",";
483 list += ToString(iter->first);
484 }
485 LSCPResultSet result;
486 result.Add(list);
487 return result.Produce();
488 }
489
490 /**
491 * Will be called by the parser to add a sampler channel.
492 */
493 String LSCPServer::AddChannel() {
494 dmsg(2,("LSCPServer: AddChannel()\n"));
495 SamplerChannel* pSamplerChannel = pSampler->AddSamplerChannel();
496 LSCPResultSet result(pSamplerChannel->Index());
497 return result.Produce();
498 }
499
500 /**
501 * Will be called by the parser to remove a sampler channel.
502 */
503 String LSCPServer::RemoveChannel(uint uiSamplerChannel) {
504 dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));
505 LSCPResultSet result;
506 pSampler->RemoveSamplerChannel(uiSamplerChannel);
507 return result.Produce();
508 }
509
510 /**
511 * Will be called by the parser to get all available engines.
512 */
513 String LSCPServer::GetAvailableEngines() {
514 dmsg(2,("LSCPServer: GetAvailableEngines()\n"));
515 LSCPResultSet result("GigEngine");
516 return result.Produce();
517 }
518
519 /**
520 * Will be called by the parser to get descriptions for a particular engine.
521 */
522 String LSCPServer::GetEngineInfo(String EngineName) {
523 dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));
524 LSCPResultSet result;
525 try {
526 if ((EngineName == "GigEngine") || (EngineName == "gig")) {
527 Engine* pEngine = new LinuxSampler::gig::Engine;
528 result.Add(pEngine->Description());
529 result.Add(pEngine->Version());
530 delete pEngine;
531 }
532 else throw LinuxSamplerException("Unknown engine type");
533 }
534 catch (LinuxSamplerException e) {
535 result.Error(e);
536 }
537 return result.Produce();
538 }
539
540 /**
541 * Will be called by the parser to get informations about a particular
542 * sampler channel.
543 */
544 String LSCPServer::GetChannelInfo(uint uiSamplerChannel) {
545 dmsg(2,("LSCPServer: GetChannelInfo(SamplerChannel=%d)\n", uiSamplerChannel));
546 LSCPResultSet result;
547 try {
548 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
549 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
550 Engine* pEngine = pSamplerChannel->GetEngine();
551
552 //Defaults values
553 String EngineName = "NONE";
554 float Volume = 0;
555 String InstrumentFileName = "NONE";
556 int InstrumentIndex = -1;
557 int InstrumentStatus = -1;
558
559 if (pEngine) {
560 EngineName = pEngine->EngineName();
561 Volume = pEngine->Volume();
562 InstrumentStatus = pEngine->InstrumentStatus();
563 InstrumentIndex = pEngine->InstrumentIndex();
564 if (InstrumentIndex != -1)
565 InstrumentFileName = pEngine->InstrumentFileName();
566 }
567
568 result.Add("ENGINE_NAME", EngineName);
569 result.Add("VOLUME", Volume);
570
571 //Some not-so-hardcoded stuff to make GUI look good
572 result.Add("AUDIO_OUTPUT_DEVICE", GetAudioOutputDeviceIndex(pSamplerChannel->GetAudioOutputDevice()));
573 result.Add("AUDIO_OUTPUT_CHANNELS", "2");
574 result.Add("AUDIO_OUTPUT_ROUTING", "0,1");
575
576 result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));
577 result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());
578 result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
579
580 result.Add("INSTRUMENT_FILE", InstrumentFileName);
581 result.Add("INSTRUMENT_NR", InstrumentIndex);
582 result.Add("INSTRUMENT_STATUS", InstrumentStatus);
583 }
584 catch (LinuxSamplerException e) {
585 result.Error(e);
586 }
587 return result.Produce();
588 }
589
590 /**
591 * Will be called by the parser to get the amount of active voices on a
592 * particular sampler channel.
593 */
594 String LSCPServer::GetVoiceCount(uint uiSamplerChannel) {
595 dmsg(2,("LSCPServer: GetVoiceCount(SamplerChannel=%d)\n", uiSamplerChannel));
596 LSCPResultSet result;
597 try {
598 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
599 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
600 Engine* pEngine = pSamplerChannel->GetEngine();
601 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
602 result.Add(pEngine->VoiceCount());
603 }
604 catch (LinuxSamplerException e) {
605 result.Error(e);
606 }
607 return result.Produce();
608 }
609
610 /**
611 * Will be called by the parser to get the amount of active disk streams on a
612 * particular sampler channel.
613 */
614 String LSCPServer::GetStreamCount(uint uiSamplerChannel) {
615 dmsg(2,("LSCPServer: GetStreamCount(SamplerChannel=%d)\n", uiSamplerChannel));
616 LSCPResultSet result;
617 try {
618 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
619 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
620 Engine* pEngine = pSamplerChannel->GetEngine();
621 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
622 result.Add(pEngine->DiskStreamCount());
623 }
624 catch (LinuxSamplerException e) {
625 result.Error(e);
626 }
627 return result.Produce();
628 }
629
630 /**
631 * Will be called by the parser to get the buffer fill states of all disk
632 * streams on a particular sampler channel.
633 */
634 String LSCPServer::GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel) {
635 dmsg(2,("LSCPServer: GetBufferFill(ResponseType=%d, SamplerChannel=%d)\n", ResponseType, uiSamplerChannel));
636 LSCPResultSet result;
637 try {
638 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
639 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
640 Engine* pEngine = pSamplerChannel->GetEngine();
641 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
642 if (!pEngine->DiskStreamSupported())
643 result.Add("NA");
644 else {
645 switch (ResponseType) {
646 case fill_response_bytes:
647 result.Add(pEngine->DiskStreamBufferFillBytes());
648 break;
649 case fill_response_percentage:
650 result.Add(pEngine->DiskStreamBufferFillPercentage());
651 break;
652 default:
653 throw LinuxSamplerException("Unknown fill response type");
654 }
655 }
656 }
657 catch (LinuxSamplerException e) {
658 result.Error(e);
659 }
660 return result.Produce();
661 }
662
663 String LSCPServer::GetAvailableAudioOutputDrivers() {
664 dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));
665 LSCPResultSet result;
666 try {
667 String s = AudioOutputDeviceFactory::AvailableDriversAsString();
668 result.Add(s);
669 }
670 catch (LinuxSamplerException e) {
671 result.Error(e);
672 }
673 return result.Produce();
674 }
675
676 String LSCPServer::GetAvailableMidiInputDrivers() {
677 dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));
678 LSCPResultSet result;
679 try {
680 String s = MidiInputDeviceFactory::AvailableDriversAsString();
681 result.Add(s);
682 }
683 catch (LinuxSamplerException e) {
684 result.Error(e);
685 }
686 return result.Produce();
687 }
688
689 String LSCPServer::GetMidiInputDriverInfo(String Driver) {
690 dmsg(2,("LSCPServer: GetMidiInputDriverInfo(Driver=%s)\n",Driver.c_str()));
691 LSCPResultSet result;
692 try {
693 result.Add("DESCRIPTION", MidiInputDeviceFactory::GetDriverDescription(Driver));
694 result.Add("VERSION", MidiInputDeviceFactory::GetDriverVersion(Driver));
695
696 std::map<String,DeviceCreationParameter*> parameters = MidiInputDeviceFactory::GetAvailableDriverParameters(Driver);
697 if (parameters.size()) { // if there are parameters defined for this driver
698 String s;
699 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
700 for (;iter != parameters.end(); iter++) {
701 if (s != "") s += ",";
702 s += iter->first;
703 }
704 result.Add("PARAMETERS", s);
705 }
706 }
707 catch (LinuxSamplerException e) {
708 result.Error(e);
709 }
710 return result.Produce();
711 }
712
713 String LSCPServer::GetAudioOutputDriverInfo(String Driver) {
714 dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));
715 LSCPResultSet result;
716 try {
717 result.Add("DESCRIPTION", AudioOutputDeviceFactory::GetDriverDescription(Driver));
718 result.Add("VERSION", AudioOutputDeviceFactory::GetDriverVersion(Driver));
719
720 std::map<String,DeviceCreationParameter*> parameters = AudioOutputDeviceFactory::GetAvailableDriverParameters(Driver);
721 if (parameters.size()) { // if there are parameters defined for this driver
722 String s;
723 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
724 for (;iter != parameters.end(); iter++) {
725 if (s != "") s += ",";
726 s += iter->first;
727 }
728 result.Add("PARAMETERS", s);
729 }
730 }
731 catch (LinuxSamplerException e) {
732 result.Error(e);
733 }
734 return result.Produce();
735 }
736
737 String LSCPServer::GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
738 dmsg(2,("LSCPServer: GetMidiInputDriverParameterInfo(Driver=%s,Parameter=%s)\n",Driver.c_str(),Parameter.c_str()));
739 LSCPResultSet result;
740 try {
741 DeviceCreationParameter* pParameter = MidiInputDeviceFactory::GetDriverParameter(Driver, Parameter);
742 result.Add("TYPE", pParameter->Type());
743 result.Add("DESCRIPTION", pParameter->Description());
744 result.Add("MANDATORY", pParameter->Mandatory());
745 result.Add("FIX", pParameter->Fix());
746 result.Add("MULTIPLICITY", pParameter->Multiplicity());
747 if (pParameter->Depends()) result.Add("DEPENDS", *pParameter->Depends());
748 if (pParameter->Default()) result.Add("DEFAULT", *pParameter->Default());
749 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
750 if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
751 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
752 }
753 catch (LinuxSamplerException e) {
754 result.Error(e);
755 }
756 return result.Produce();
757 }
758
759 String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
760 dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s)\n",Driver.c_str(),Parameter.c_str()));
761 LSCPResultSet result;
762 try {
763 DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);
764 result.Add("TYPE", pParameter->Type());
765 result.Add("DESCRIPTION", pParameter->Description());
766 result.Add("MANDATORY", pParameter->Mandatory());
767 result.Add("FIX", pParameter->Fix());
768 result.Add("MULTIPLICITY", pParameter->Multiplicity());
769 if (pParameter->Depends()) result.Add("DEPENDS", *pParameter->Depends());
770 if (pParameter->Default()) result.Add("DEFAULT", *pParameter->Default());
771 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
772 if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
773 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
774 }
775 catch (LinuxSamplerException e) {
776 result.Error(e);
777 }
778 return result.Produce();
779 }
780
781 String LSCPServer::GetAudioOutputDeviceCount() {
782 dmsg(2,("LSCPServer: GetAudioOutputDeviceCount()\n"));
783 LSCPResultSet result;
784 try {
785 uint count = pSampler->AudioOutputDevices();
786 result.Add(count); // success
787 }
788 catch (LinuxSamplerException e) {
789 result.Error(e);
790 }
791 return result.Produce();
792 }
793
794 String LSCPServer::GetMidiInputDeviceCount() {
795 dmsg(2,("LSCPServer: GetMidiInputDeviceCount()\n"));
796 LSCPResultSet result;
797 try {
798 uint count = pSampler->MidiInputDevices();
799 result.Add(count); // success
800 }
801 catch (LinuxSamplerException e) {
802 result.Error(e);
803 }
804 return result.Produce();
805 }
806
807 String LSCPServer::GetAudioOutputDevices() {
808 dmsg(2,("LSCPServer: GetAudioOutputDevices()\n"));
809 LSCPResultSet result;
810 try {
811 String s;
812 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
813 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
814 for (; iter != devices.end(); iter++) {
815 if (s != "") s += ",";
816 s += ToString(iter->first);
817 }
818 result.Add(s);
819 }
820 catch (LinuxSamplerException e) {
821 result.Error(e);
822 }
823 return result.Produce();
824 }
825
826 String LSCPServer::GetMidiInputDevices() {
827 dmsg(2,("LSCPServer: GetMidiInputDevices()\n"));
828 LSCPResultSet result;
829 try {
830 String s;
831 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
832 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
833 for (; iter != devices.end(); iter++) {
834 if (s != "") s += ",";
835 s += ToString(iter->first);
836 }
837 result.Add(s);
838 }
839 catch (LinuxSamplerException e) {
840 result.Error(e);
841 }
842 return result.Produce();
843 }
844
845 String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {
846 dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
847 LSCPResultSet result;
848 try {
849 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
850 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
851 AudioOutputDevice* pDevice = devices[DeviceIndex];
852 result.Add("DRIVER", pDevice->Driver());
853 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
854 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
855 for (; iter != parameters.end(); iter++) {
856 result.Add(iter->first, iter->second->Value());
857 }
858 }
859 catch (LinuxSamplerException e) {
860 result.Error(e);
861 }
862 return result.Produce();
863 }
864
865 String LSCPServer::GetMidiInputDeviceInfo(uint DeviceIndex) {
866 dmsg(2,("LSCPServer: GetMidiInputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
867 LSCPResultSet result;
868 try {
869 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
870 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
871 MidiInputDevice* pDevice = devices[DeviceIndex];
872 result.Add("DRIVER", pDevice->Driver());
873 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
874 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
875 for (; iter != parameters.end(); iter++) {
876 result.Add(iter->first, iter->second->Value());
877 }
878 }
879 catch (LinuxSamplerException e) {
880 result.Error(e);
881 }
882 return result.Produce();
883 }
884 String LSCPServer::GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex) {
885 dmsg(2,("LSCPServer: GetMidiInputPortInfo(DeviceIndex=%d, PortIndex=%d)\n",DeviceIndex, PortIndex));
886 LSCPResultSet result;
887 try {
888 // get MIDI input device
889 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
890 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
891 MidiInputDevice* pDevice = devices[DeviceIndex];
892
893 // get MIDI port
894 MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
895 if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
896
897 // return the values of all MIDI port parameters
898 std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
899 std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
900 for (; iter != parameters.end(); iter++) {
901 result.Add(iter->first, iter->second->Value());
902 }
903 }
904 catch (LinuxSamplerException e) {
905 result.Error(e);
906 }
907 return result.Produce();
908 }
909
910 String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {
911 dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));
912 LSCPResultSet result;
913 try {
914 // get audio output device
915 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
916 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
917 AudioOutputDevice* pDevice = devices[DeviceId];
918
919 // get audio channel
920 AudioChannel* pChannel = pDevice->Channel(ChannelId);
921 if (!pChannel) throw LinuxSamplerException("Audio ouotput device does not have channel " + ToString(ChannelId) + ".");
922
923 // return the values of all audio channel parameters
924 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
925 std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
926 for (; iter != parameters.end(); iter++) {
927 result.Add(iter->first, iter->second->Value());
928 }
929 }
930 catch (LinuxSamplerException e) {
931 result.Error(e);
932 }
933 return result.Produce();
934 }
935
936 String LSCPServer::GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName) {
937 dmsg(2,("LSCPServer: GetMidiInputPortParameterInfo(DeviceId=%d,PortId=%d,ParameterName=%s)\n",DeviceId,PortId,ParameterName.c_str()));
938 LSCPResultSet result;
939 try {
940 // get MIDI input device
941 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
942 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no midi input device with index " + ToString(DeviceId) + ".");
943 MidiInputDevice* pDevice = devices[DeviceId];
944
945 // get midi port
946 MidiInputPort* pPort = pDevice->GetPort(PortId);
947 if (!pPort) throw LinuxSamplerException("Midi input device does not have port " + ToString(PortId) + ".");
948
949 // get desired port parameter
950 std::map<String,DeviceRuntimeParameter*> parameters = pPort->PortParameters();
951 if (!parameters.count(ParameterName)) throw LinuxSamplerException("Midi port does not provide a parameter '" + ParameterName + "'.");
952 DeviceRuntimeParameter* pParameter = parameters[ParameterName];
953
954 // return all fields of this audio channel parameter
955 result.Add("TYPE", pParameter->Type());
956 result.Add("DESCRIPTION", pParameter->Description());
957 result.Add("FIX", pParameter->Fix());
958 result.Add("MULTIPLICITY", pParameter->Multiplicity());
959 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
960 if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
961 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
962 }
963 catch (LinuxSamplerException e) {
964 result.Error(e);
965 }
966 return result.Produce();
967 }
968
969 String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {
970 dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));
971 LSCPResultSet result;
972 try {
973 // get audio output device
974 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
975 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
976 AudioOutputDevice* pDevice = devices[DeviceId];
977
978 // get audio channel
979 AudioChannel* pChannel = pDevice->Channel(ChannelId);
980 if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + ".");
981
982 // get desired audio channel parameter
983 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
984 if (!parameters.count(ParameterName)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");
985 DeviceRuntimeParameter* pParameter = parameters[ParameterName];
986
987 // return all fields of this audio channel parameter
988 result.Add("TYPE", pParameter->Type());
989 result.Add("DESCRIPTION", pParameter->Description());
990 result.Add("FIX", pParameter->Fix());
991 result.Add("MULTIPLICITY", pParameter->Multiplicity());
992 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
993 if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
994 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
995 }
996 catch (LinuxSamplerException e) {
997 result.Error(e);
998 }
999 return result.Produce();
1000 }
1001
1002 String LSCPServer::SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal) {
1003 dmsg(2,("LSCPServer: SetAudioOutputChannelParameter(DeviceId=%d,ChannelId=%d,ParamKey=%s,ParamVal=%s)\n",DeviceId,ChannelId,ParamKey.c_str(),ParamVal.c_str()));
1004 LSCPResultSet result;
1005 try {
1006 // get audio output device
1007 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1008 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1009 AudioOutputDevice* pDevice = devices[DeviceId];
1010
1011 // get audio channel
1012 AudioChannel* pChannel = pDevice->Channel(ChannelId);
1013 if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + ".");
1014
1015 // get desired audio channel parameter
1016 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1017 if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");
1018 DeviceRuntimeParameter* pParameter = parameters[ParamKey];
1019
1020 // set new channel parameter value
1021 pParameter->SetValue(ParamVal);
1022 }
1023 catch (LinuxSamplerException e) {
1024 result.Error(e);
1025 }
1026 return result.Produce();
1027 }
1028
1029 String LSCPServer::SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1030 dmsg(2,("LSCPServer: SetAudioOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1031 LSCPResultSet result;
1032 try {
1033 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1034 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
1035 AudioOutputDevice* pDevice = devices[DeviceIndex];
1036 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1037 if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1038 parameters[ParamKey]->SetValue(ParamVal);
1039 }
1040 catch (LinuxSamplerException e) {
1041 result.Error(e);
1042 }
1043 return result.Produce();
1044 }
1045
1046 String LSCPServer::SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1047 dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1048 LSCPResultSet result;
1049 try {
1050 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1051 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1052 MidiInputDevice* pDevice = devices[DeviceIndex];
1053 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1054 if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1055 parameters[ParamKey]->SetValue(ParamVal);
1056 }
1057 catch (LinuxSamplerException e) {
1058 result.Error(e);
1059 }
1060 return result.Produce();
1061 }
1062
1063 String LSCPServer::SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal) {
1064 dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1065 LSCPResultSet result;
1066 try {
1067 // get MIDI input device
1068 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1069 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1070 MidiInputDevice* pDevice = devices[DeviceIndex];
1071
1072 // get MIDI port
1073 MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
1074 if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
1075
1076 // set port parameter value
1077 std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
1078 if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(PortIndex) + " does not have a parameter '" + ParamKey + "'");
1079 parameters[ParamKey]->SetValue(ParamVal);
1080 }
1081 catch (LinuxSamplerException e) {
1082 result.Error(e);
1083 }
1084 return result.Produce();
1085 }
1086
1087 /**
1088 * Will be called by the parser to change the audio output channel for
1089 * playback on a particular sampler channel.
1090 */
1091 String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {
1092 dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));
1093 return "ERR:0:Not implemented yet.\r\n"; //FIXME: Add support for this in resultset class?
1094 }
1095
1096 String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint uiSamplerChannel) {
1097 dmsg(2,("LSCPServer: SetAudiotOutputDevice(AudioDeviceId=%d, SamplerChannel=%d)\n",AudioDeviceId,uiSamplerChannel));
1098 LSCPResultSet result;
1099 try {
1100 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1101 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1102 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1103 if (!devices.count(AudioDeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId));
1104 AudioOutputDevice* pDevice = devices[AudioDeviceId];
1105 pSamplerChannel->SetAudioOutputDevice(pDevice);
1106 }
1107 catch (LinuxSamplerException e) {
1108 result.Error(e);
1109 }
1110 return result.Produce();
1111 }
1112
1113 String LSCPServer::SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel) {
1114 dmsg(2,("LSCPServer: SetAudioOutputType(String AudioOutputDriver=%s, SamplerChannel=%d)\n",AudioOutputDriver.c_str(),uiSamplerChannel));
1115 LSCPResultSet result;
1116 try {
1117 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1118 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1119 // Driver type name aliasing...
1120 if (AudioOutputDriver == "ALSA") AudioOutputDriver = "Alsa";
1121 if (AudioOutputDriver == "JACK") AudioOutputDriver = "Jack";
1122 // Check if there's one audio output device already created
1123 // for the intended audio driver type (AudioOutputDriver)...
1124 AudioOutputDevice *pDevice = NULL;
1125 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1126 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
1127 for (; iter != devices.end(); iter++) {
1128 if ((iter->second)->Driver() == AudioOutputDriver) {
1129 pDevice = iter->second;
1130 break;
1131 }
1132 }
1133 // If it doesn't exist, create a new one with default parameters...
1134 if (pDevice == NULL) {
1135 std::map<String,String> params;
1136 pDevice = pSampler->CreateAudioOutputDevice(AudioOutputDriver, params);
1137 }
1138 // Must have a device...
1139 if (pDevice == NULL)
1140 throw LinuxSamplerException("Internal error: could not create audio output device.");
1141 // Set it as the current channel device...
1142 pSamplerChannel->SetAudioOutputDevice(pDevice);
1143 }
1144 catch (LinuxSamplerException e) {
1145 result.Error(e);
1146 }
1147 return result.Produce();
1148 }
1149
1150 String LSCPServer::SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel) {
1151 dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIPort=%d, SamplerChannel=%d)\n",MIDIPort,uiSamplerChannel));
1152 LSCPResultSet result;
1153 try {
1154 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1155 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1156 pSamplerChannel->SetMidiInputPort(MIDIPort);
1157 }
1158 catch (LinuxSamplerException e) {
1159 result.Error(e);
1160 }
1161 return result.Produce();
1162 }
1163
1164 String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {
1165 dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n",MIDIChannel,uiSamplerChannel));
1166 LSCPResultSet result;
1167 try {
1168 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1169 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1170 pSamplerChannel->SetMidiInputChannel((MidiInputPort::midi_chan_t) MIDIChannel);
1171 }
1172 catch (LinuxSamplerException e) {
1173 result.Error(e);
1174 }
1175 return result.Produce();
1176 }
1177
1178 String LSCPServer::SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel) {
1179 dmsg(2,("LSCPServer: SetMIDIInputDevice(MIDIDeviceId=%d, SamplerChannel=%d)\n",MIDIDeviceId,uiSamplerChannel));
1180 LSCPResultSet result;
1181 try {
1182 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1183 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1184 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1185 if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1186 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1187 pSamplerChannel->SetMidiInputDevice(pDevice);
1188 }
1189 catch (LinuxSamplerException e) {
1190 result.Error(e);
1191 }
1192 return result.Produce();
1193 }
1194
1195 String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {
1196 dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));
1197 LSCPResultSet result;
1198 try {
1199 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1200 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1201 // Driver type name aliasing...
1202 if (MidiInputDriver == "ALSA") MidiInputDriver = "Alsa";
1203 // Check if there's one MIDI input device already created
1204 // for the intended MIDI driver type (MidiInputDriver)...
1205 MidiInputDevice *pDevice = NULL;
1206 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1207 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
1208 for (; iter != devices.end(); iter++) {
1209 if ((iter->second)->Driver() == MidiInputDriver) {
1210 pDevice = iter->second;
1211 break;
1212 }
1213 }
1214 // If it doesn't exist, create a new one with default parameters...
1215 if (pDevice == NULL) {
1216 std::map<String,String> params;
1217 pDevice = pSampler->CreateMidiInputDevice(MidiInputDriver, params);
1218 // Make it with at least one initial port.
1219 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1220 parameters["PORTS"]->SetValue("1");
1221 }
1222 // Must have a device...
1223 if (pDevice == NULL)
1224 throw LinuxSamplerException("Internal error: could not create MIDI input device.");
1225 // Set it as the current channel device...
1226 pSamplerChannel->SetMidiInputDevice(pDevice);
1227 }
1228 catch (LinuxSamplerException e) {
1229 result.Error(e);
1230 }
1231 return result.Produce();
1232 }
1233
1234 /**
1235 * Will be called by the parser to change the MIDI input device, port and channel on which
1236 * engine of a particular sampler channel should listen to.
1237 */
1238 String LSCPServer::SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel) {
1239 dmsg(2,("LSCPServer: SetMIDIInput(MIDIDeviceId=%d, MIDIPort=%d, MIDIChannel=%d, SamplerChannel=%d)\n", MIDIDeviceId, MIDIPort, MIDIChannel, uiSamplerChannel));
1240 LSCPResultSet result;
1241 try {
1242 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1243 if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));
1244 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1245 if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1246 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1247 pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (MidiInputPort::midi_chan_t) MIDIChannel);
1248 }
1249 catch (LinuxSamplerException e) {
1250 result.Error(e);
1251 }
1252 return result.Produce();
1253 }
1254
1255 /**
1256 * Will be called by the parser to change the global volume factor on a
1257 * particular sampler channel.
1258 */
1259 String LSCPServer::SetVolume(double Volume, uint uiSamplerChannel) {
1260 dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", Volume, uiSamplerChannel));
1261 LSCPResultSet result;
1262 try {
1263 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1264 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
1265 Engine* pEngine = pSamplerChannel->GetEngine();
1266 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
1267 pEngine->Volume(Volume);
1268 }
1269 catch (LinuxSamplerException e) {
1270 result.Error(e);
1271 }
1272 return result.Produce();
1273 }
1274
1275 /**
1276 * Will be called by the parser to reset a particular sampler channel.
1277 */
1278 String LSCPServer::ResetChannel(uint uiSamplerChannel) {
1279 dmsg(2,("LSCPServer: ResetChannel(SamplerChannel=%d)\n", uiSamplerChannel));
1280 LSCPResultSet result;
1281 try {
1282 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1283 if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
1284 Engine* pEngine = pSamplerChannel->GetEngine();
1285 if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
1286 pEngine->Reset();
1287 }
1288 catch (LinuxSamplerException e) {
1289 result.Error(e);
1290 }
1291 return result.Produce();
1292 }
1293
1294 /**
1295 * Will be called by the parser to reset the whole sampler.
1296 */
1297 String LSCPServer::ResetSampler() {
1298 dmsg(2,("LSCPServer: ResetSampler()\n"));
1299 pSampler->Reset();
1300 LSCPResultSet result;
1301 return result.Produce();
1302 }
1303
1304 /**
1305 * Will be called by the parser to subscribe a client (frontend) on the
1306 * server for receiving event messages.
1307 */
1308 String LSCPServer::SubscribeNotification(LSCPEvent::event_t type) {
1309 dmsg(2,("LSCPServer: SubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1310 LSCPResultSet result;
1311 SubscriptionMutex.Lock();
1312 eventSubscriptions[type].push_back(currentSocket);
1313 SubscriptionMutex.Unlock();
1314 return result.Produce();
1315 }
1316
1317 /**
1318 * Will be called by the parser to unsubscribe a client on the server
1319 * for not receiving further event messages.
1320 */
1321 String LSCPServer::UnsubscribeNotification(LSCPEvent::event_t type) {
1322 dmsg(2,("LSCPServer: UnsubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1323 LSCPResultSet result;
1324 SubscriptionMutex.Lock();
1325 eventSubscriptions[type].remove(currentSocket);
1326 SubscriptionMutex.Unlock();
1327 return result.Produce();
1328 }
1329
1330 /**
1331 * Will be called by the parser to enable or disable echo mode; if echo
1332 * mode is enabled, all commands from the client will (immediately) be
1333 * echoed back to the client.
1334 */
1335 String LSCPServer::SetEcho(yyparse_param_t* pSession, double boolean_value) {
1336 dmsg(2,("LSCPServer: SetEcho(val=%f)\n", boolean_value));
1337 LSCPResultSet result;
1338 try {
1339 if (boolean_value == 0) pSession->bVerbose = false;
1340 else if (boolean_value == 1) pSession->bVerbose = true;
1341 else throw LinuxSamplerException("Not a boolean value, must either be 0 or 1");
1342 }
1343 catch (LinuxSamplerException e) {
1344 result.Error(e);
1345 }
1346 return result.Produce();
1347 }
1348
1349 // Instrument loader constructor.
1350 LSCPLoadInstrument::LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument)
1351 : Thread(false, 0, -4)
1352 {
1353 this->pEngine = pEngine;
1354 this->Filename = Filename;
1355 this->uiInstrument = uiInstrument;
1356 }
1357
1358 // Instrument loader process.
1359 int LSCPLoadInstrument::Main()
1360 {
1361 try {
1362 pEngine->LoadInstrument(Filename.c_str(), uiInstrument);
1363 }
1364
1365 catch (LinuxSamplerException e) {
1366 e.PrintMessage();
1367 }
1368
1369 // Always re-enable the engine.
1370 pEngine->Enable();
1371
1372 // FIXME: Shoot ourselves on the foot?
1373 delete this;
1374 }

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