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

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Revision 392 - (show annotations) (download)
Sat Feb 19 02:40:24 2005 UTC (19 years, 1 month ago) by schoenebeck
File size: 60760 byte(s)
* fixed possibility that memory got not locked
* immediately set instrument status when calling LOAD INSTUMENT NON_MODAL

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 Christian Schoenebeck *
7 * *
8 * This library is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This library is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this library; if not, write to the Free Software *
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21 * MA 02111-1307 USA *
22 ***************************************************************************/
23
24 #include "lscpserver.h"
25 #include "lscpresultset.h"
26 #include "lscpevent.h"
27
28 #include "../engines/gig/Engine.h"
29 #include "../drivers/audio/AudioOutputDeviceFactory.h"
30 #include "../drivers/midi/MidiInputDeviceFactory.h"
31
32 /**
33 * Below are a few static members of the LSCPServer class.
34 * The big assumption here is that LSCPServer is going to remain a singleton.
35 * These members are used to support client connections.
36 * Class handles multiple connections at the same time using select() and non-blocking recv()
37 * Commands are processed by a single LSCPServer thread.
38 * Notifications are delivered either by the thread that originated them
39 * or (if the resultset is currently in progress) by the LSCPServer thread
40 * after the resultset was sent out.
41 * This makes sure that resultsets can not be interrupted by notifications.
42 * This also makes sure that the thread sending notification is not blocked
43 * by the LSCPServer thread.
44 */
45 fd_set LSCPServer::fdSet;
46 int LSCPServer::currentSocket = -1;
47 std::vector<yyparse_param_t> LSCPServer::Sessions = std::vector<yyparse_param_t>();
48 std::map<int,String> LSCPServer::bufferedNotifies = std::map<int,String>();
49 std::map<int,String> LSCPServer::bufferedCommands = std::map<int,String>();
50 std::map< LSCPEvent::event_t, std::list<int> > LSCPServer::eventSubscriptions = std::map< LSCPEvent::event_t, std::list<int> >();
51 Mutex LSCPServer::NotifyMutex = Mutex();
52 Mutex LSCPServer::NotifyBufferMutex = Mutex();
53 Mutex LSCPServer::SubscriptionMutex = Mutex();
54 Mutex LSCPServer::RTNotifyMutex = Mutex();
55
56 LSCPServer::LSCPServer(Sampler* pSampler) : Thread(true, false, 0, -4) {
57 this->pSampler = pSampler;
58 LSCPEvent::RegisterEvent(LSCPEvent::event_channels, "CHANNELS");
59 LSCPEvent::RegisterEvent(LSCPEvent::event_voice_count, "VOICE_COUNT");
60 LSCPEvent::RegisterEvent(LSCPEvent::event_stream_count, "STREAM_COUNT");
61 LSCPEvent::RegisterEvent(LSCPEvent::event_buffer_fill, "BUFFER_FILL");
62 LSCPEvent::RegisterEvent(LSCPEvent::event_info, "INFO");
63 LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");
64 }
65
66 /**
67 * Blocks the calling thread until the LSCP Server is initialized and
68 * accepting socket connections, if the server is already initialized then
69 * this method will return immediately.
70 * @param TimeoutSeconds - optional: max. wait time in seconds
71 * (default: 0s)
72 * @param TimeoutNanoSeconds - optional: max wait time in nano seconds
73 * (default: 0ns)
74 * @returns 0 on success, a value less than 0 if timeout exceeded
75 */
76 int LSCPServer::WaitUntilInitialized(long TimeoutSeconds, long TimeoutNanoSeconds) {
77 return Initialized.WaitAndUnlockIf(false, TimeoutSeconds, TimeoutNanoSeconds);
78 }
79
80 int LSCPServer::Main() {
81 int hSocket = socket(AF_INET, SOCK_STREAM, 0);
82 if (hSocket < 0) {
83 std::cerr << "LSCPServer: Could not create server socket." << std::endl;
84 //return -1;
85 exit(EXIT_FAILURE);
86 }
87
88 SocketAddress.sin_family = AF_INET;
89 SocketAddress.sin_port = htons(LSCP_PORT);
90 SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);
91
92 if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
93 std::cerr << "LSCPServer: Could not bind server socket, retrying for " << ToString(LSCP_SERVER_BIND_TIMEOUT) << " seconds...";
94 for (int trial = 0; true; trial++) { // retry for LSCP_SERVER_BIND_TIMEOUT seconds
95 if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
96 if (trial > LSCP_SERVER_BIND_TIMEOUT) {
97 std::cerr << "gave up!" << std::endl;
98 close(hSocket);
99 //return -1;
100 exit(EXIT_FAILURE);
101 }
102 else sleep(1); // sleep 1s
103 }
104 else break; // success
105 }
106 }
107
108 listen(hSocket, 1);
109 Initialized.Set(true);
110
111 // now wait for client connections and handle their requests
112 sockaddr_in client;
113 int length = sizeof(client);
114 FD_ZERO(&fdSet);
115 FD_SET(hSocket, &fdSet);
116 int maxSessions = hSocket;
117
118 while (true) {
119 fd_set selectSet = fdSet;
120 int retval = select(maxSessions+1, &selectSet, NULL, NULL, NULL);
121 if (retval == 0)
122 continue; //Nothing try again
123 if (retval == -1) {
124 std::cerr << "LSCPServer: Socket select error." << std::endl;
125 close(hSocket);
126 exit(EXIT_FAILURE);
127 }
128
129 //Accept new connections now (if any)
130 if (FD_ISSET(hSocket, &selectSet)) {
131 int socket = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length);
132 if (socket < 0) {
133 std::cerr << "LSCPServer: Client connection failed." << std::endl;
134 exit(EXIT_FAILURE);
135 }
136
137 if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
138 std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
139 exit(EXIT_FAILURE);
140 }
141
142 // Parser initialization
143 yyparse_param_t yyparse_param;
144 yyparse_param.pServer = this;
145 yyparse_param.hSession = socket;
146
147 Sessions.push_back(yyparse_param);
148 FD_SET(socket, &fdSet);
149 if (socket > maxSessions)
150 maxSessions = socket;
151 dmsg(1,("LSCPServer: Client connection established on socket:%d.\n", socket));
152 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection established on socket", socket));
153 continue; //Maybe this was the only selected socket, better select again
154 }
155
156 //Something was selected and it was not the hSocket, so it must be some command(s) coming.
157 for (std::vector<yyparse_param_t>::iterator iter = Sessions.begin(); iter != Sessions.end(); iter++) {
158 if (FD_ISSET((*iter).hSession, &selectSet)) { //Was it this socket?
159 if (GetLSCPCommand(iter)) { //Have we read the entire command?
160 dmsg(3,("LSCPServer: Got command on socket %d, calling parser.\n", currentSocket));
161 int dummy; // just a temporary hack to fulfill the restart() function prototype
162 restart(NULL, dummy); // restart the 'scanner'
163 currentSocket = (*iter).hSession; //a hack
164 if ((*iter).bVerbose) { // if echo mode enabled
165 AnswerClient(bufferedCommands[currentSocket]);
166 }
167 int result = yyparse(&(*iter));
168 currentSocket = -1; //continuation of a hack
169 dmsg(3,("LSCPServer: Done parsing on socket %d.\n", currentSocket));
170 if (result == LSCP_QUIT) { //Was it a quit command by any chance?
171 CloseConnection(iter);
172 }
173 }
174 //socket may have been closed, iter may be invalid, get out of the loop for now.
175 //we'll be back if there is data.
176 break;
177 }
178 }
179
180 //Now let's deliver late notifies (if any)
181 NotifyBufferMutex.Lock();
182 for (std::map<int,String>::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) {
183 send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), 0);
184 bufferedNotifies.erase(iterNotify);
185 }
186 NotifyBufferMutex.Unlock();
187 }
188 }
189
190 void LSCPServer::CloseConnection( std::vector<yyparse_param_t>::iterator iter ) {
191 int socket = (*iter).hSession;
192 dmsg(1,("LSCPServer: Client connection terminated on socket:%d.\n",socket));
193 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection terminated on socket", socket));
194 Sessions.erase(iter);
195 FD_CLR(socket, &fdSet);
196 SubscriptionMutex.Lock(); //Must unsubscribe this socket from all events (if any)
197 for (std::map< LSCPEvent::event_t, std::list<int> >::iterator iter = eventSubscriptions.begin(); iter != eventSubscriptions.end(); iter++) {
198 iter->second.remove(socket);
199 }
200 SubscriptionMutex.Unlock();
201 NotifyMutex.Lock();
202 bufferedCommands.erase(socket);
203 bufferedNotifies.erase(socket);
204 close(socket);
205 NotifyMutex.Unlock();
206 }
207
208 int LSCPServer::EventSubscribers( std::list<LSCPEvent::event_t> events ) {
209 int subs = 0;
210 SubscriptionMutex.Lock();
211 for( std::list<LSCPEvent::event_t>::iterator iter = events.begin();
212 iter != events.end(); iter++)
213 {
214 subs += eventSubscriptions.count(*iter);
215 }
216 SubscriptionMutex.Unlock();
217 return subs;
218 }
219
220 void LSCPServer::SendLSCPNotify( LSCPEvent event ) {
221 SubscriptionMutex.Lock();
222 if (eventSubscriptions.count(event.GetType()) == 0) {
223 SubscriptionMutex.Unlock(); //Nobody is subscribed to this event
224 return;
225 }
226 std::list<int>::iterator iter = eventSubscriptions[event.GetType()].begin();
227 std::list<int>::iterator end = eventSubscriptions[event.GetType()].end();
228 String notify = event.Produce();
229
230 while (true) {
231 if (NotifyMutex.Trylock()) {
232 for(;iter != end; iter++)
233 send(*iter, notify.c_str(), notify.size(), 0);
234 NotifyMutex.Unlock();
235 break;
236 } else {
237 if (NotifyBufferMutex.Trylock()) {
238 for(;iter != end; iter++)
239 bufferedNotifies[*iter] += notify;
240 NotifyBufferMutex.Unlock();
241 break;
242 }
243 }
244 }
245 SubscriptionMutex.Unlock();
246 }
247
248 extern int GetLSCPCommand( void *buf, int max_size ) {
249 String command = LSCPServer::bufferedCommands[LSCPServer::currentSocket];
250 if (command.size() == 0) { //Parser wants input but we have nothing.
251 strcpy((char*) buf, "\n"); //So give it an empty command
252 return 1; //to keep it happy.
253 }
254
255 if (max_size < command.size()) {
256 std::cerr << "getLSCPCommand: Flex buffer too small, ignoring the command." << std::endl;
257 return 0; //This will never happen
258 }
259
260 strcpy((char*) buf, command.c_str());
261 LSCPServer::bufferedCommands.erase(LSCPServer::currentSocket);
262 return command.size();
263 }
264
265 /**
266 * Will be called to try to read the command from the socket
267 * If command is read, it will return true. Otherwise false is returned.
268 * In any case the received portion (complete or incomplete) is saved into bufferedCommand map.
269 */
270 bool LSCPServer::GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter ) {
271 int socket = (*iter).hSession;
272 char c;
273 int i = 0;
274 while (true) {
275 int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now
276 if (result == 0) { //socket was selected, so 0 here means client has closed the connection
277 CloseConnection(iter);
278 break;
279 }
280 if (result == 1) {
281 if (c == '\r')
282 continue; //Ignore CR
283 if (c == '\n') {
284 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Received \'" + bufferedCommands[socket] + "\' on socket", socket));
285 bufferedCommands[socket] += "\n";
286 return true; //Complete command was read
287 }
288 bufferedCommands[socket] += c;
289 }
290 if (result == -1) {
291 if (errno == EAGAIN) //Would block, try again later.
292 return false;
293 switch(errno) {
294 case EBADF:
295 dmsg(2,("LSCPScanner: The argument s is an invalid descriptor.\n"));
296 break;
297 case ECONNREFUSED:
298 dmsg(2,("LSCPScanner: A remote host refused to allow the network connection (typically because it is not running the requested service).\n"));
299 break;
300 case ENOTCONN:
301 dmsg(2,("LSCPScanner: The socket is associated with a connection-oriented protocol and has not been connected (see connect(2) and accept(2)).\n"));
302 break;
303 case ENOTSOCK:
304 dmsg(2,("LSCPScanner: The argument s does not refer to a socket.\n"));
305 break;
306 case EAGAIN:
307 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"));
308 break;
309 case EINTR:
310 dmsg(2,("LSCPScanner: The receive was interrupted by delivery of a signal before any data were available.\n"));
311 break;
312 case EFAULT:
313 dmsg(2,("LSCPScanner: The receive buffer pointer(s) point outside the process's address space.\n"));
314 break;
315 case EINVAL:
316 dmsg(2,("LSCPScanner: Invalid argument passed.\n"));
317 break;
318 case ENOMEM:
319 dmsg(2,("LSCPScanner: Could not allocate memory for recvmsg.\n"));
320 break;
321 default:
322 dmsg(2,("LSCPScanner: Unknown recv() error.\n"));
323 break;
324 }
325 CloseConnection(iter);
326 break;
327 }
328 }
329 return false;
330 }
331
332 /**
333 * Will be called by the parser whenever it wants to send an answer to the
334 * client / frontend.
335 *
336 * @param ReturnMessage - message that will be send to the client
337 */
338 void LSCPServer::AnswerClient(String ReturnMessage) {
339 dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));
340 if (currentSocket != -1) {
341 NotifyMutex.Lock();
342 send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);
343 NotifyMutex.Unlock();
344 }
345 }
346
347 /**
348 * Find a created audio output device index.
349 */
350 int LSCPServer::GetAudioOutputDeviceIndex ( AudioOutputDevice *pDevice )
351 {
352 // Search for the created device to get its index
353 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
354 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
355 for (; iter != devices.end(); iter++) {
356 if (iter->second == pDevice)
357 return iter->first;
358 }
359 // Not found.
360 return -1;
361 }
362
363 /**
364 * Find a created midi input device index.
365 */
366 int LSCPServer::GetMidiInputDeviceIndex ( MidiInputDevice *pDevice )
367 {
368 // Search for the created device to get its index
369 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
370 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
371 for (; iter != devices.end(); iter++) {
372 if (iter->second == pDevice)
373 return iter->first;
374 }
375 // Not found.
376 return -1;
377 }
378
379 String LSCPServer::CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters) {
380 dmsg(2,("LSCPServer: CreateAudioOutputDevice(Driver=%s)\n", Driver.c_str()));
381 LSCPResultSet result;
382 try {
383 AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters);
384 // search for the created device to get its index
385 int index = GetAudioOutputDeviceIndex(pDevice);
386 if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device.");
387 result = index; // success
388 }
389 catch (LinuxSamplerException e) {
390 result.Error(e);
391 }
392 return result.Produce();
393 }
394
395 String LSCPServer::CreateMidiInputDevice(String Driver, std::map<String,String> Parameters) {
396 dmsg(2,("LSCPServer: CreateMidiInputDevice(Driver=%s)\n", Driver.c_str()));
397 LSCPResultSet result;
398 try {
399 MidiInputDevice* pDevice = pSampler->CreateMidiInputDevice(Driver, Parameters);
400 // search for the created device to get its index
401 int index = GetMidiInputDeviceIndex(pDevice);
402 if (index == -1) throw LinuxSamplerException("Internal error: could not find created midi input device.");
403 result = index; // success
404 }
405 catch (LinuxSamplerException e) {
406 result.Error(e);
407 }
408 return result.Produce();
409 }
410
411 String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) {
412 dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex));
413 LSCPResultSet result;
414 try {
415 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
416 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
417 AudioOutputDevice* pDevice = devices[DeviceIndex];
418 pSampler->DestroyAudioOutputDevice(pDevice);
419 }
420 catch (LinuxSamplerException e) {
421 result.Error(e);
422 }
423 return result.Produce();
424 }
425
426 String LSCPServer::DestroyMidiInputDevice(uint DeviceIndex) {
427 dmsg(2,("LSCPServer: DestroyMidiInputDevice(DeviceIndex=%d)\n", DeviceIndex));
428 LSCPResultSet result;
429 try {
430 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
431 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
432 MidiInputDevice* pDevice = devices[DeviceIndex];
433 pSampler->DestroyMidiInputDevice(pDevice);
434 }
435 catch (LinuxSamplerException e) {
436 result.Error(e);
437 }
438 return result.Produce();
439 }
440
441 /**
442 * Will be called by the parser to load an instrument.
443 */
444 String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground) {
445 dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));
446 LSCPResultSet result;
447 try {
448 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
449 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
450 Engine* pEngine = pSamplerChannel->GetEngine();
451 if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
452 if (!pSamplerChannel->GetAudioOutputDevice())
453 throw LinuxSamplerException("No audio output device connected to sampler channel");
454 if (bBackground) {
455 InstrumentLoader.StartNewLoad(Filename, uiInstrument, pEngine);
456 }
457 else {
458 // tell the engine which instrument to load
459 pEngine->PrepareLoadInstrument(Filename.c_str(), uiInstrument);
460 // actually start to load the instrument (blocks until completed)
461 pEngine->LoadInstrument();
462 }
463 }
464 catch (LinuxSamplerException e) {
465 result.Error(e);
466 }
467 return result.Produce();
468 }
469
470 /**
471 * Will be called by the parser to load and deploy an engine.
472 */
473 String LSCPServer::LoadEngine(String EngineName, uint uiSamplerChannel) {
474 dmsg(2,("LSCPServer: LoadEngine(EngineName=%s,SamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel));
475 LSCPResultSet result;
476 try {
477 Engine::type_t type;
478 if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig;
479 else throw LinuxSamplerException("Unknown engine type");
480 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
481 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
482 LockRTNotify();
483 pSamplerChannel->LoadEngine(type);
484 UnlockRTNotify();
485 }
486 catch (LinuxSamplerException e) {
487 result.Error(e);
488 }
489 return result.Produce();
490 }
491
492 /**
493 * Will be called by the parser to get the amount of sampler channels.
494 */
495 String LSCPServer::GetChannels() {
496 dmsg(2,("LSCPServer: GetChannels()\n"));
497 LSCPResultSet result;
498 result.Add(pSampler->SamplerChannels());
499 return result.Produce();
500 }
501
502 /**
503 * Will be called by the parser to get the list of sampler channels.
504 */
505 String LSCPServer::ListChannels() {
506 dmsg(2,("LSCPServer: ListChannels()\n"));
507 String list;
508 std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
509 std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
510 for (; iter != channels.end(); iter++) {
511 if (list != "") list += ",";
512 list += ToString(iter->first);
513 }
514 LSCPResultSet result;
515 result.Add(list);
516 return result.Produce();
517 }
518
519 /**
520 * Will be called by the parser to add a sampler channel.
521 */
522 String LSCPServer::AddChannel() {
523 dmsg(2,("LSCPServer: AddChannel()\n"));
524 SamplerChannel* pSamplerChannel = pSampler->AddSamplerChannel();
525 LSCPResultSet result(pSamplerChannel->Index());
526 return result.Produce();
527 }
528
529 /**
530 * Will be called by the parser to remove a sampler channel.
531 */
532 String LSCPServer::RemoveChannel(uint uiSamplerChannel) {
533 dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));
534 LSCPResultSet result;
535 LockRTNotify();
536 pSampler->RemoveSamplerChannel(uiSamplerChannel);
537 UnlockRTNotify();
538 return result.Produce();
539 }
540
541 /**
542 * Will be called by the parser to get all available engines.
543 */
544 String LSCPServer::GetAvailableEngines() {
545 dmsg(2,("LSCPServer: GetAvailableEngines()\n"));
546 LSCPResultSet result("GigEngine");
547 return result.Produce();
548 }
549
550 /**
551 * Will be called by the parser to get descriptions for a particular engine.
552 */
553 String LSCPServer::GetEngineInfo(String EngineName) {
554 dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));
555 LSCPResultSet result;
556 try {
557 if ((EngineName == "GigEngine") || (EngineName == "gig")) {
558 Engine* pEngine = new LinuxSampler::gig::Engine;
559 result.Add("DESCRIPTION", pEngine->Description());
560 result.Add("VERSION", pEngine->Version());
561 delete pEngine;
562 }
563 else throw LinuxSamplerException("Unknown engine type");
564 }
565 catch (LinuxSamplerException e) {
566 result.Error(e);
567 }
568 return result.Produce();
569 }
570
571 /**
572 * Will be called by the parser to get informations about a particular
573 * sampler channel.
574 */
575 String LSCPServer::GetChannelInfo(uint uiSamplerChannel) {
576 dmsg(2,("LSCPServer: GetChannelInfo(SamplerChannel=%d)\n", uiSamplerChannel));
577 LSCPResultSet result;
578 try {
579 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
580 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
581 Engine* pEngine = pSamplerChannel->GetEngine();
582
583 //Defaults values
584 String EngineName = "NONE";
585 float Volume = 0.0f;
586 String InstrumentFileName = "NONE";
587 String InstrumentName = "NONE";
588 int InstrumentIndex = -1;
589 int InstrumentStatus = -1;
590 int AudioOutputChannels = 0;
591 String AudioRouting;
592
593 if (pEngine) {
594 EngineName = pEngine->EngineName();
595 AudioOutputChannels = pEngine->Channels();
596 Volume = pEngine->Volume();
597 InstrumentStatus = pEngine->InstrumentStatus();
598 InstrumentIndex = pEngine->InstrumentIndex();
599 if (InstrumentIndex != -1)
600 {
601 InstrumentFileName = pEngine->InstrumentFileName();
602 InstrumentName = pEngine->InstrumentName();
603 }
604 for (int chan = 0; chan < pEngine->Channels(); chan++) {
605 if (AudioRouting != "") AudioRouting += ",";
606 AudioRouting += ToString(pEngine->OutputChannel(chan));
607 }
608 }
609
610 result.Add("ENGINE_NAME", EngineName);
611 result.Add("VOLUME", Volume);
612
613 //Some not-so-hardcoded stuff to make GUI look good
614 result.Add("AUDIO_OUTPUT_DEVICE", GetAudioOutputDeviceIndex(pSamplerChannel->GetAudioOutputDevice()));
615 result.Add("AUDIO_OUTPUT_CHANNELS", AudioOutputChannels);
616 result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);
617
618 result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));
619 result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());
620 if (pSamplerChannel->GetMidiInputChannel() == MidiInputPort::midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");
621 else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
622
623 result.Add("INSTRUMENT_FILE", InstrumentFileName);
624 result.Add("INSTRUMENT_NR", InstrumentIndex);
625 result.Add("INSTRUMENT_NAME", InstrumentName);
626 result.Add("INSTRUMENT_STATUS", InstrumentStatus);
627 }
628 catch (LinuxSamplerException e) {
629 result.Error(e);
630 }
631 return result.Produce();
632 }
633
634 /**
635 * Will be called by the parser to get the amount of active voices on a
636 * particular sampler channel.
637 */
638 String LSCPServer::GetVoiceCount(uint uiSamplerChannel) {
639 dmsg(2,("LSCPServer: GetVoiceCount(SamplerChannel=%d)\n", uiSamplerChannel));
640 LSCPResultSet result;
641 try {
642 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
643 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
644 Engine* pEngine = pSamplerChannel->GetEngine();
645 if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
646 result.Add(pEngine->VoiceCount());
647 }
648 catch (LinuxSamplerException e) {
649 result.Error(e);
650 }
651 return result.Produce();
652 }
653
654 /**
655 * Will be called by the parser to get the amount of active disk streams on a
656 * particular sampler channel.
657 */
658 String LSCPServer::GetStreamCount(uint uiSamplerChannel) {
659 dmsg(2,("LSCPServer: GetStreamCount(SamplerChannel=%d)\n", uiSamplerChannel));
660 LSCPResultSet result;
661 try {
662 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
663 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
664 Engine* pEngine = pSamplerChannel->GetEngine();
665 if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
666 result.Add(pEngine->DiskStreamCount());
667 }
668 catch (LinuxSamplerException e) {
669 result.Error(e);
670 }
671 return result.Produce();
672 }
673
674 /**
675 * Will be called by the parser to get the buffer fill states of all disk
676 * streams on a particular sampler channel.
677 */
678 String LSCPServer::GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel) {
679 dmsg(2,("LSCPServer: GetBufferFill(ResponseType=%d, SamplerChannel=%d)\n", ResponseType, uiSamplerChannel));
680 LSCPResultSet result;
681 try {
682 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
683 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
684 Engine* pEngine = pSamplerChannel->GetEngine();
685 if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
686 if (!pEngine->DiskStreamSupported())
687 result.Add("NA");
688 else {
689 switch (ResponseType) {
690 case fill_response_bytes:
691 result.Add(pEngine->DiskStreamBufferFillBytes());
692 break;
693 case fill_response_percentage:
694 result.Add(pEngine->DiskStreamBufferFillPercentage());
695 break;
696 default:
697 throw LinuxSamplerException("Unknown fill response type");
698 }
699 }
700 }
701 catch (LinuxSamplerException e) {
702 result.Error(e);
703 }
704 return result.Produce();
705 }
706
707 String LSCPServer::GetAvailableAudioOutputDrivers() {
708 dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));
709 LSCPResultSet result;
710 try {
711 String s = AudioOutputDeviceFactory::AvailableDriversAsString();
712 result.Add(s);
713 }
714 catch (LinuxSamplerException e) {
715 result.Error(e);
716 }
717 return result.Produce();
718 }
719
720 String LSCPServer::GetAvailableMidiInputDrivers() {
721 dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));
722 LSCPResultSet result;
723 try {
724 String s = MidiInputDeviceFactory::AvailableDriversAsString();
725 result.Add(s);
726 }
727 catch (LinuxSamplerException e) {
728 result.Error(e);
729 }
730 return result.Produce();
731 }
732
733 String LSCPServer::GetMidiInputDriverInfo(String Driver) {
734 dmsg(2,("LSCPServer: GetMidiInputDriverInfo(Driver=%s)\n",Driver.c_str()));
735 LSCPResultSet result;
736 try {
737 result.Add("DESCRIPTION", MidiInputDeviceFactory::GetDriverDescription(Driver));
738 result.Add("VERSION", MidiInputDeviceFactory::GetDriverVersion(Driver));
739
740 std::map<String,DeviceCreationParameter*> parameters = MidiInputDeviceFactory::GetAvailableDriverParameters(Driver);
741 if (parameters.size()) { // if there are parameters defined for this driver
742 String s;
743 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
744 for (;iter != parameters.end(); iter++) {
745 if (s != "") s += ",";
746 s += iter->first;
747 }
748 result.Add("PARAMETERS", s);
749 }
750 }
751 catch (LinuxSamplerException e) {
752 result.Error(e);
753 }
754 return result.Produce();
755 }
756
757 String LSCPServer::GetAudioOutputDriverInfo(String Driver) {
758 dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));
759 LSCPResultSet result;
760 try {
761 result.Add("DESCRIPTION", AudioOutputDeviceFactory::GetDriverDescription(Driver));
762 result.Add("VERSION", AudioOutputDeviceFactory::GetDriverVersion(Driver));
763
764 std::map<String,DeviceCreationParameter*> parameters = AudioOutputDeviceFactory::GetAvailableDriverParameters(Driver);
765 if (parameters.size()) { // if there are parameters defined for this driver
766 String s;
767 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
768 for (;iter != parameters.end(); iter++) {
769 if (s != "") s += ",";
770 s += iter->first;
771 }
772 result.Add("PARAMETERS", s);
773 }
774 }
775 catch (LinuxSamplerException e) {
776 result.Error(e);
777 }
778 return result.Produce();
779 }
780
781 String LSCPServer::GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
782 dmsg(2,("LSCPServer: GetMidiInputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
783 LSCPResultSet result;
784 try {
785 DeviceCreationParameter* pParameter = MidiInputDeviceFactory::GetDriverParameter(Driver, Parameter);
786 result.Add("TYPE", pParameter->Type());
787 result.Add("DESCRIPTION", pParameter->Description());
788 result.Add("MANDATORY", pParameter->Mandatory());
789 result.Add("FIX", pParameter->Fix());
790 result.Add("MULTIPLICITY", pParameter->Multiplicity());
791 optional<String> oDepends = pParameter->Depends();
792 optional<String> oDefault = pParameter->Default(DependencyList);
793 optional<String> oRangeMin = pParameter->RangeMin(DependencyList);
794 optional<String> oRangeMax = pParameter->RangeMax(DependencyList);
795 optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
796 if (oDepends) result.Add("DEPENDS", *oDepends);
797 if (oDefault) result.Add("DEFAULT", *oDefault);
798 if (oRangeMin) result.Add("RANGE_MIN", *oRangeMin);
799 if (oRangeMax) result.Add("RANGE_MAX", *oRangeMax);
800 if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
801 }
802 catch (LinuxSamplerException e) {
803 result.Error(e);
804 }
805 return result.Produce();
806 }
807
808 String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
809 dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
810 LSCPResultSet result;
811 try {
812 DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);
813 result.Add("TYPE", pParameter->Type());
814 result.Add("DESCRIPTION", pParameter->Description());
815 result.Add("MANDATORY", pParameter->Mandatory());
816 result.Add("FIX", pParameter->Fix());
817 result.Add("MULTIPLICITY", pParameter->Multiplicity());
818 optional<String> oDepends = pParameter->Depends();
819 optional<String> oDefault = pParameter->Default(DependencyList);
820 optional<String> oRangeMin = pParameter->RangeMin(DependencyList);
821 optional<String> oRangeMax = pParameter->RangeMax(DependencyList);
822 optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
823 if (oDepends) result.Add("DEPENDS", *oDepends);
824 if (oDefault) result.Add("DEFAULT", *oDefault);
825 if (oRangeMin) result.Add("RANGE_MIN", *oRangeMin);
826 if (oRangeMax) result.Add("RANGE_MAX", *oRangeMax);
827 if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
828 }
829 catch (LinuxSamplerException e) {
830 result.Error(e);
831 }
832 return result.Produce();
833 }
834
835 String LSCPServer::GetAudioOutputDeviceCount() {
836 dmsg(2,("LSCPServer: GetAudioOutputDeviceCount()\n"));
837 LSCPResultSet result;
838 try {
839 uint count = pSampler->AudioOutputDevices();
840 result.Add(count); // success
841 }
842 catch (LinuxSamplerException e) {
843 result.Error(e);
844 }
845 return result.Produce();
846 }
847
848 String LSCPServer::GetMidiInputDeviceCount() {
849 dmsg(2,("LSCPServer: GetMidiInputDeviceCount()\n"));
850 LSCPResultSet result;
851 try {
852 uint count = pSampler->MidiInputDevices();
853 result.Add(count); // success
854 }
855 catch (LinuxSamplerException e) {
856 result.Error(e);
857 }
858 return result.Produce();
859 }
860
861 String LSCPServer::GetAudioOutputDevices() {
862 dmsg(2,("LSCPServer: GetAudioOutputDevices()\n"));
863 LSCPResultSet result;
864 try {
865 String s;
866 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
867 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
868 for (; iter != devices.end(); iter++) {
869 if (s != "") s += ",";
870 s += ToString(iter->first);
871 }
872 result.Add(s);
873 }
874 catch (LinuxSamplerException e) {
875 result.Error(e);
876 }
877 return result.Produce();
878 }
879
880 String LSCPServer::GetMidiInputDevices() {
881 dmsg(2,("LSCPServer: GetMidiInputDevices()\n"));
882 LSCPResultSet result;
883 try {
884 String s;
885 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
886 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
887 for (; iter != devices.end(); iter++) {
888 if (s != "") s += ",";
889 s += ToString(iter->first);
890 }
891 result.Add(s);
892 }
893 catch (LinuxSamplerException e) {
894 result.Error(e);
895 }
896 return result.Produce();
897 }
898
899 String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {
900 dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
901 LSCPResultSet result;
902 try {
903 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
904 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
905 AudioOutputDevice* pDevice = devices[DeviceIndex];
906 result.Add("DRIVER", pDevice->Driver());
907 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
908 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
909 for (; iter != parameters.end(); iter++) {
910 result.Add(iter->first, iter->second->Value());
911 }
912 }
913 catch (LinuxSamplerException e) {
914 result.Error(e);
915 }
916 return result.Produce();
917 }
918
919 String LSCPServer::GetMidiInputDeviceInfo(uint DeviceIndex) {
920 dmsg(2,("LSCPServer: GetMidiInputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
921 LSCPResultSet result;
922 try {
923 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
924 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
925 MidiInputDevice* pDevice = devices[DeviceIndex];
926 result.Add("DRIVER", pDevice->Driver());
927 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
928 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
929 for (; iter != parameters.end(); iter++) {
930 result.Add(iter->first, iter->second->Value());
931 }
932 }
933 catch (LinuxSamplerException e) {
934 result.Error(e);
935 }
936 return result.Produce();
937 }
938 String LSCPServer::GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex) {
939 dmsg(2,("LSCPServer: GetMidiInputPortInfo(DeviceIndex=%d, PortIndex=%d)\n",DeviceIndex, PortIndex));
940 LSCPResultSet result;
941 try {
942 // get MIDI input device
943 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
944 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
945 MidiInputDevice* pDevice = devices[DeviceIndex];
946
947 // get MIDI port
948 MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
949 if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
950
951 // return the values of all MIDI port parameters
952 std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
953 std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
954 for (; iter != parameters.end(); iter++) {
955 result.Add(iter->first, iter->second->Value());
956 }
957 }
958 catch (LinuxSamplerException e) {
959 result.Error(e);
960 }
961 return result.Produce();
962 }
963
964 String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {
965 dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));
966 LSCPResultSet result;
967 try {
968 // get audio output device
969 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
970 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
971 AudioOutputDevice* pDevice = devices[DeviceId];
972
973 // get audio channel
974 AudioChannel* pChannel = pDevice->Channel(ChannelId);
975 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
976
977 // return the values of all audio channel parameters
978 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
979 std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
980 for (; iter != parameters.end(); iter++) {
981 result.Add(iter->first, iter->second->Value());
982 }
983 }
984 catch (LinuxSamplerException e) {
985 result.Error(e);
986 }
987 return result.Produce();
988 }
989
990 String LSCPServer::GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName) {
991 dmsg(2,("LSCPServer: GetMidiInputPortParameterInfo(DeviceId=%d,PortId=%d,ParameterName=%s)\n",DeviceId,PortId,ParameterName.c_str()));
992 LSCPResultSet result;
993 try {
994 // get MIDI input device
995 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
996 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no midi input device with index " + ToString(DeviceId) + ".");
997 MidiInputDevice* pDevice = devices[DeviceId];
998
999 // get midi port
1000 MidiInputPort* pPort = pDevice->GetPort(PortId);
1001 if (!pPort) throw LinuxSamplerException("Midi input device does not have port " + ToString(PortId) + ".");
1002
1003 // get desired port parameter
1004 std::map<String,DeviceRuntimeParameter*> parameters = pPort->PortParameters();
1005 if (!parameters.count(ParameterName)) throw LinuxSamplerException("Midi port does not provide a parameter '" + ParameterName + "'.");
1006 DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1007
1008 // return all fields of this audio channel parameter
1009 result.Add("TYPE", pParameter->Type());
1010 result.Add("DESCRIPTION", pParameter->Description());
1011 result.Add("FIX", pParameter->Fix());
1012 result.Add("MULTIPLICITY", pParameter->Multiplicity());
1013 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
1014 if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
1015 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1016 }
1017 catch (LinuxSamplerException e) {
1018 result.Error(e);
1019 }
1020 return result.Produce();
1021 }
1022
1023 String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {
1024 dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));
1025 LSCPResultSet result;
1026 try {
1027 // get audio output device
1028 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1029 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1030 AudioOutputDevice* pDevice = devices[DeviceId];
1031
1032 // get audio channel
1033 AudioChannel* pChannel = pDevice->Channel(ChannelId);
1034 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1035
1036 // get desired audio channel parameter
1037 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1038 if (!parameters.count(ParameterName)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");
1039 DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1040
1041 // return all fields of this audio channel parameter
1042 result.Add("TYPE", pParameter->Type());
1043 result.Add("DESCRIPTION", pParameter->Description());
1044 result.Add("FIX", pParameter->Fix());
1045 result.Add("MULTIPLICITY", pParameter->Multiplicity());
1046 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
1047 if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
1048 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1049 }
1050 catch (LinuxSamplerException e) {
1051 result.Error(e);
1052 }
1053 return result.Produce();
1054 }
1055
1056 String LSCPServer::SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal) {
1057 dmsg(2,("LSCPServer: SetAudioOutputChannelParameter(DeviceId=%d,ChannelId=%d,ParamKey=%s,ParamVal=%s)\n",DeviceId,ChannelId,ParamKey.c_str(),ParamVal.c_str()));
1058 LSCPResultSet result;
1059 try {
1060 // get audio output device
1061 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1062 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1063 AudioOutputDevice* pDevice = devices[DeviceId];
1064
1065 // get audio channel
1066 AudioChannel* pChannel = pDevice->Channel(ChannelId);
1067 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1068
1069 // get desired audio channel parameter
1070 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1071 if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");
1072 DeviceRuntimeParameter* pParameter = parameters[ParamKey];
1073
1074 // set new channel parameter value
1075 pParameter->SetValue(ParamVal);
1076 }
1077 catch (LinuxSamplerException e) {
1078 result.Error(e);
1079 }
1080 return result.Produce();
1081 }
1082
1083 String LSCPServer::SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1084 dmsg(2,("LSCPServer: SetAudioOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1085 LSCPResultSet result;
1086 try {
1087 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1088 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
1089 AudioOutputDevice* pDevice = devices[DeviceIndex];
1090 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1091 if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1092 parameters[ParamKey]->SetValue(ParamVal);
1093 }
1094 catch (LinuxSamplerException e) {
1095 result.Error(e);
1096 }
1097 return result.Produce();
1098 }
1099
1100 String LSCPServer::SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1101 dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1102 LSCPResultSet result;
1103 try {
1104 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1105 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1106 MidiInputDevice* pDevice = devices[DeviceIndex];
1107 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1108 if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1109 parameters[ParamKey]->SetValue(ParamVal);
1110 }
1111 catch (LinuxSamplerException e) {
1112 result.Error(e);
1113 }
1114 return result.Produce();
1115 }
1116
1117 String LSCPServer::SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal) {
1118 dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1119 LSCPResultSet result;
1120 try {
1121 // get MIDI input device
1122 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1123 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1124 MidiInputDevice* pDevice = devices[DeviceIndex];
1125
1126 // get MIDI port
1127 MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
1128 if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
1129
1130 // set port parameter value
1131 std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
1132 if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(PortIndex) + " does not have a parameter '" + ParamKey + "'");
1133 parameters[ParamKey]->SetValue(ParamVal);
1134 }
1135 catch (LinuxSamplerException e) {
1136 result.Error(e);
1137 }
1138 return result.Produce();
1139 }
1140
1141 /**
1142 * Will be called by the parser to change the audio output channel for
1143 * playback on a particular sampler channel.
1144 */
1145 String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {
1146 dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));
1147 LSCPResultSet result;
1148 try {
1149 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1150 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1151 Engine* pEngine = pSamplerChannel->GetEngine();
1152 if (!pEngine) throw LinuxSamplerException("No engine deployed on sampler channel " + ToString(uiSamplerChannel));
1153 if (!pSamplerChannel->GetAudioOutputDevice()) throw LinuxSamplerException("No audio output device connected to sampler channel " + ToString(uiSamplerChannel));
1154 pEngine->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel);
1155 }
1156 catch (LinuxSamplerException e) {
1157 result.Error(e);
1158 }
1159 return result.Produce();
1160 }
1161
1162 String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint uiSamplerChannel) {
1163 dmsg(2,("LSCPServer: SetAudiotOutputDevice(AudioDeviceId=%d, SamplerChannel=%d)\n",AudioDeviceId,uiSamplerChannel));
1164 LSCPResultSet result;
1165 try {
1166 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1167 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1168 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1169 if (!devices.count(AudioDeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId));
1170 AudioOutputDevice* pDevice = devices[AudioDeviceId];
1171 pSamplerChannel->SetAudioOutputDevice(pDevice);
1172 }
1173 catch (LinuxSamplerException e) {
1174 result.Error(e);
1175 }
1176 return result.Produce();
1177 }
1178
1179 String LSCPServer::SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel) {
1180 dmsg(2,("LSCPServer: SetAudioOutputType(String AudioOutputDriver=%s, SamplerChannel=%d)\n",AudioOutputDriver.c_str(),uiSamplerChannel));
1181 LSCPResultSet result;
1182 try {
1183 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1184 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1185 // Driver type name aliasing...
1186 if (AudioOutputDriver == "Alsa") AudioOutputDriver = "ALSA";
1187 if (AudioOutputDriver == "Jack") AudioOutputDriver = "JACK";
1188 // Check if there's one audio output device already created
1189 // for the intended audio driver type (AudioOutputDriver)...
1190 AudioOutputDevice *pDevice = NULL;
1191 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1192 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
1193 for (; iter != devices.end(); iter++) {
1194 if ((iter->second)->Driver() == AudioOutputDriver) {
1195 pDevice = iter->second;
1196 break;
1197 }
1198 }
1199 // If it doesn't exist, create a new one with default parameters...
1200 if (pDevice == NULL) {
1201 std::map<String,String> params;
1202 pDevice = pSampler->CreateAudioOutputDevice(AudioOutputDriver, params);
1203 }
1204 // Must have a device...
1205 if (pDevice == NULL)
1206 throw LinuxSamplerException("Internal error: could not create audio output device.");
1207 // Set it as the current channel device...
1208 pSamplerChannel->SetAudioOutputDevice(pDevice);
1209 }
1210 catch (LinuxSamplerException e) {
1211 result.Error(e);
1212 }
1213 return result.Produce();
1214 }
1215
1216 String LSCPServer::SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel) {
1217 dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIPort=%d, SamplerChannel=%d)\n",MIDIPort,uiSamplerChannel));
1218 LSCPResultSet result;
1219 try {
1220 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1221 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1222 pSamplerChannel->SetMidiInputPort(MIDIPort);
1223 }
1224 catch (LinuxSamplerException e) {
1225 result.Error(e);
1226 }
1227 return result.Produce();
1228 }
1229
1230 String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {
1231 dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n",MIDIChannel,uiSamplerChannel));
1232 LSCPResultSet result;
1233 try {
1234 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1235 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1236 pSamplerChannel->SetMidiInputChannel((MidiInputPort::midi_chan_t) MIDIChannel);
1237 }
1238 catch (LinuxSamplerException e) {
1239 result.Error(e);
1240 }
1241 return result.Produce();
1242 }
1243
1244 String LSCPServer::SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel) {
1245 dmsg(2,("LSCPServer: SetMIDIInputDevice(MIDIDeviceId=%d, SamplerChannel=%d)\n",MIDIDeviceId,uiSamplerChannel));
1246 LSCPResultSet result;
1247 try {
1248 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1249 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1250 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1251 if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1252 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1253 pSamplerChannel->SetMidiInputDevice(pDevice);
1254 }
1255 catch (LinuxSamplerException e) {
1256 result.Error(e);
1257 }
1258 return result.Produce();
1259 }
1260
1261 String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {
1262 dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));
1263 LSCPResultSet result;
1264 try {
1265 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1266 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1267 // Driver type name aliasing...
1268 if (MidiInputDriver == "Alsa") MidiInputDriver = "ALSA";
1269 // Check if there's one MIDI input device already created
1270 // for the intended MIDI driver type (MidiInputDriver)...
1271 MidiInputDevice *pDevice = NULL;
1272 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1273 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
1274 for (; iter != devices.end(); iter++) {
1275 if ((iter->second)->Driver() == MidiInputDriver) {
1276 pDevice = iter->second;
1277 break;
1278 }
1279 }
1280 // If it doesn't exist, create a new one with default parameters...
1281 if (pDevice == NULL) {
1282 std::map<String,String> params;
1283 pDevice = pSampler->CreateMidiInputDevice(MidiInputDriver, params);
1284 // Make it with at least one initial port.
1285 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1286 parameters["PORTS"]->SetValue("1");
1287 }
1288 // Must have a device...
1289 if (pDevice == NULL)
1290 throw LinuxSamplerException("Internal error: could not create MIDI input device.");
1291 // Set it as the current channel device...
1292 pSamplerChannel->SetMidiInputDevice(pDevice);
1293 }
1294 catch (LinuxSamplerException e) {
1295 result.Error(e);
1296 }
1297 return result.Produce();
1298 }
1299
1300 /**
1301 * Will be called by the parser to change the MIDI input device, port and channel on which
1302 * engine of a particular sampler channel should listen to.
1303 */
1304 String LSCPServer::SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel) {
1305 dmsg(2,("LSCPServer: SetMIDIInput(MIDIDeviceId=%d, MIDIPort=%d, MIDIChannel=%d, SamplerChannel=%d)\n", MIDIDeviceId, MIDIPort, MIDIChannel, uiSamplerChannel));
1306 LSCPResultSet result;
1307 try {
1308 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1309 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1310 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1311 if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1312 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1313 pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (MidiInputPort::midi_chan_t) MIDIChannel);
1314 }
1315 catch (LinuxSamplerException e) {
1316 result.Error(e);
1317 }
1318 return result.Produce();
1319 }
1320
1321 /**
1322 * Will be called by the parser to change the global volume factor on a
1323 * particular sampler channel.
1324 */
1325 String LSCPServer::SetVolume(double dVolume, uint uiSamplerChannel) {
1326 dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", dVolume, uiSamplerChannel));
1327 LSCPResultSet result;
1328 try {
1329 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1330 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1331 Engine* pEngine = pSamplerChannel->GetEngine();
1332 if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
1333 pEngine->Volume(dVolume);
1334 }
1335 catch (LinuxSamplerException e) {
1336 result.Error(e);
1337 }
1338 return result.Produce();
1339 }
1340
1341 /**
1342 * Will be called by the parser to reset a particular sampler channel.
1343 */
1344 String LSCPServer::ResetChannel(uint uiSamplerChannel) {
1345 dmsg(2,("LSCPServer: ResetChannel(SamplerChannel=%d)\n", uiSamplerChannel));
1346 LSCPResultSet result;
1347 try {
1348 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1349 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1350 Engine* pEngine = pSamplerChannel->GetEngine();
1351 if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
1352 pEngine->Reset();
1353 }
1354 catch (LinuxSamplerException e) {
1355 result.Error(e);
1356 }
1357 return result.Produce();
1358 }
1359
1360 /**
1361 * Will be called by the parser to reset the whole sampler.
1362 */
1363 String LSCPServer::ResetSampler() {
1364 dmsg(2,("LSCPServer: ResetSampler()\n"));
1365 pSampler->Reset();
1366 LSCPResultSet result;
1367 return result.Produce();
1368 }
1369
1370 /**
1371 * Will be called by the parser to subscribe a client (frontend) on the
1372 * server for receiving event messages.
1373 */
1374 String LSCPServer::SubscribeNotification(LSCPEvent::event_t type) {
1375 dmsg(2,("LSCPServer: SubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1376 LSCPResultSet result;
1377 SubscriptionMutex.Lock();
1378 eventSubscriptions[type].push_back(currentSocket);
1379 SubscriptionMutex.Unlock();
1380 return result.Produce();
1381 }
1382
1383 /**
1384 * Will be called by the parser to unsubscribe a client on the server
1385 * for not receiving further event messages.
1386 */
1387 String LSCPServer::UnsubscribeNotification(LSCPEvent::event_t type) {
1388 dmsg(2,("LSCPServer: UnsubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1389 LSCPResultSet result;
1390 SubscriptionMutex.Lock();
1391 eventSubscriptions[type].remove(currentSocket);
1392 SubscriptionMutex.Unlock();
1393 return result.Produce();
1394 }
1395
1396 /**
1397 * Will be called by the parser to enable or disable echo mode; if echo
1398 * mode is enabled, all commands from the client will (immediately) be
1399 * echoed back to the client.
1400 */
1401 String LSCPServer::SetEcho(yyparse_param_t* pSession, double boolean_value) {
1402 dmsg(2,("LSCPServer: SetEcho(val=%f)\n", boolean_value));
1403 LSCPResultSet result;
1404 try {
1405 if (boolean_value == 0) pSession->bVerbose = false;
1406 else if (boolean_value == 1) pSession->bVerbose = true;
1407 else throw LinuxSamplerException("Not a boolean value, must either be 0 or 1");
1408 }
1409 catch (LinuxSamplerException e) {
1410 result.Error(e);
1411 }
1412 return result.Produce();
1413 }

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