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

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Revision 667 - (show annotations) (download)
Sun Jun 19 21:22:34 2005 UTC (18 years, 9 months ago) by senkov
File size: 64844 byte(s)
* added cmdline options for lscp address and port

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 //#include "../common/global.h"
28
29 #include <fcntl.h>
30
31 #if HAVE_SQLITE3
32 # include "sqlite3.h"
33 #endif
34
35 #include "../engines/EngineFactory.h"
36 #include "../engines/EngineChannelFactory.h"
37 #include "../drivers/audio/AudioOutputDeviceFactory.h"
38 #include "../drivers/midi/MidiInputDeviceFactory.h"
39
40 /**
41 * Below are a few static members of the LSCPServer class.
42 * The big assumption here is that LSCPServer is going to remain a singleton.
43 * These members are used to support client connections.
44 * Class handles multiple connections at the same time using select() and non-blocking recv()
45 * Commands are processed by a single LSCPServer thread.
46 * Notifications are delivered either by the thread that originated them
47 * or (if the resultset is currently in progress) by the LSCPServer thread
48 * after the resultset was sent out.
49 * This makes sure that resultsets can not be interrupted by notifications.
50 * This also makes sure that the thread sending notification is not blocked
51 * by the LSCPServer thread.
52 */
53 fd_set LSCPServer::fdSet;
54 int LSCPServer::currentSocket = -1;
55 std::vector<yyparse_param_t> LSCPServer::Sessions = std::vector<yyparse_param_t>();
56 std::map<int,String> LSCPServer::bufferedNotifies = std::map<int,String>();
57 std::map<int,String> LSCPServer::bufferedCommands = std::map<int,String>();
58 std::map< LSCPEvent::event_t, std::list<int> > LSCPServer::eventSubscriptions = std::map< LSCPEvent::event_t, std::list<int> >();
59 Mutex LSCPServer::NotifyMutex = Mutex();
60 Mutex LSCPServer::NotifyBufferMutex = Mutex();
61 Mutex LSCPServer::SubscriptionMutex = Mutex();
62 Mutex LSCPServer::RTNotifyMutex = Mutex();
63
64 LSCPServer::LSCPServer(Sampler* pSampler, long int addr, short int port) : Thread(true, false, 0, -4) {
65 SocketAddress.sin_family = AF_INET;
66 SocketAddress.sin_addr.s_addr = addr;
67 SocketAddress.sin_port = port;
68 this->pSampler = pSampler;
69 LSCPEvent::RegisterEvent(LSCPEvent::event_channel_count, "CHANNEL_COUNT");
70 LSCPEvent::RegisterEvent(LSCPEvent::event_voice_count, "VOICE_COUNT");
71 LSCPEvent::RegisterEvent(LSCPEvent::event_stream_count, "STREAM_COUNT");
72 LSCPEvent::RegisterEvent(LSCPEvent::event_buffer_fill, "BUFFER_FILL");
73 LSCPEvent::RegisterEvent(LSCPEvent::event_channel_info, "CHANNEL_INFO");
74 LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");
75 hSocket = -1;
76 }
77
78 LSCPServer::~LSCPServer() {
79 if (hSocket >= 0) close(hSocket);
80 }
81
82 /**
83 * Blocks the calling thread until the LSCP Server is initialized and
84 * accepting socket connections, if the server is already initialized then
85 * this method will return immediately.
86 * @param TimeoutSeconds - optional: max. wait time in seconds
87 * (default: 0s)
88 * @param TimeoutNanoSeconds - optional: max wait time in nano seconds
89 * (default: 0ns)
90 * @returns 0 on success, a value less than 0 if timeout exceeded
91 */
92 int LSCPServer::WaitUntilInitialized(long TimeoutSeconds, long TimeoutNanoSeconds) {
93 return Initialized.WaitAndUnlockIf(false, TimeoutSeconds, TimeoutNanoSeconds);
94 }
95
96 int LSCPServer::Main() {
97 hSocket = socket(AF_INET, SOCK_STREAM, 0);
98 if (hSocket < 0) {
99 std::cerr << "LSCPServer: Could not create server socket." << std::endl;
100 //return -1;
101 exit(EXIT_FAILURE);
102 }
103
104 if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
105 std::cerr << "LSCPServer: Could not bind server socket, retrying for " << ToString(LSCP_SERVER_BIND_TIMEOUT) << " seconds...";
106 for (int trial = 0; true; trial++) { // retry for LSCP_SERVER_BIND_TIMEOUT seconds
107 if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
108 if (trial > LSCP_SERVER_BIND_TIMEOUT) {
109 std::cerr << "gave up!" << std::endl;
110 close(hSocket);
111 //return -1;
112 exit(EXIT_FAILURE);
113 }
114 else sleep(1); // sleep 1s
115 }
116 else break; // success
117 }
118 }
119
120 listen(hSocket, 1);
121 Initialized.Set(true);
122
123 // now wait for client connections and handle their requests
124 sockaddr_in client;
125 int length = sizeof(client);
126 FD_ZERO(&fdSet);
127 FD_SET(hSocket, &fdSet);
128 int maxSessions = hSocket;
129
130 while (true) {
131 fd_set selectSet = fdSet;
132 int retval = select(maxSessions+1, &selectSet, NULL, NULL, NULL);
133 if (retval == 0)
134 continue; //Nothing try again
135 if (retval == -1) {
136 std::cerr << "LSCPServer: Socket select error." << std::endl;
137 close(hSocket);
138 exit(EXIT_FAILURE);
139 }
140
141 //Accept new connections now (if any)
142 if (FD_ISSET(hSocket, &selectSet)) {
143 int socket = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length);
144 if (socket < 0) {
145 std::cerr << "LSCPServer: Client connection failed." << std::endl;
146 exit(EXIT_FAILURE);
147 }
148
149 if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
150 std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
151 exit(EXIT_FAILURE);
152 }
153
154 // Parser initialization
155 yyparse_param_t yyparse_param;
156 yyparse_param.pServer = this;
157 yyparse_param.hSession = socket;
158
159 Sessions.push_back(yyparse_param);
160 FD_SET(socket, &fdSet);
161 if (socket > maxSessions)
162 maxSessions = socket;
163 dmsg(1,("LSCPServer: Client connection established on socket:%d.\n", socket));
164 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection established on socket", socket));
165 continue; //Maybe this was the only selected socket, better select again
166 }
167
168 //Something was selected and it was not the hSocket, so it must be some command(s) coming.
169 for (std::vector<yyparse_param_t>::iterator iter = Sessions.begin(); iter != Sessions.end(); iter++) {
170 if (FD_ISSET((*iter).hSession, &selectSet)) { //Was it this socket?
171 if (GetLSCPCommand(iter)) { //Have we read the entire command?
172 dmsg(3,("LSCPServer: Got command on socket %d, calling parser.\n", currentSocket));
173 int dummy; // just a temporary hack to fulfill the restart() function prototype
174 restart(NULL, dummy); // restart the 'scanner'
175 currentSocket = (*iter).hSession; //a hack
176 dmsg(2,("LSCPServer: [%s]\n",bufferedCommands[currentSocket].c_str()));
177 if ((*iter).bVerbose) { // if echo mode enabled
178 AnswerClient(bufferedCommands[currentSocket]);
179 }
180 int result = yyparse(&(*iter));
181 currentSocket = -1; //continuation of a hack
182 dmsg(3,("LSCPServer: Done parsing on socket %d.\n", currentSocket));
183 if (result == LSCP_QUIT) { //Was it a quit command by any chance?
184 CloseConnection(iter);
185 }
186 }
187 //socket may have been closed, iter may be invalid, get out of the loop for now.
188 //we'll be back if there is data.
189 break;
190 }
191 }
192
193 // check if some engine channel's parameter / status changed, if so notify the respective LSCP event subscribers
194 {
195 std::set<EngineChannel*> engineChannels = EngineChannelFactory::EngineChannelInstances();
196 std::set<EngineChannel*>::iterator itEngineChannel = engineChannels.begin();
197 std::set<EngineChannel*>::iterator itEnd = engineChannels.end();
198 for (; itEngineChannel != itEnd; ++itEngineChannel) {
199 if ((*itEngineChannel)->StatusChanged()) {
200 SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_info, (*itEngineChannel)->iSamplerChannelIndex));
201 }
202 }
203 }
204
205 //Now let's deliver late notifies (if any)
206 NotifyBufferMutex.Lock();
207 for (std::map<int,String>::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) {
208 send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), 0);
209 bufferedNotifies.erase(iterNotify);
210 }
211 NotifyBufferMutex.Unlock();
212 }
213 }
214
215 void LSCPServer::CloseConnection( std::vector<yyparse_param_t>::iterator iter ) {
216 int socket = (*iter).hSession;
217 dmsg(1,("LSCPServer: Client connection terminated on socket:%d.\n",socket));
218 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection terminated on socket", socket));
219 Sessions.erase(iter);
220 FD_CLR(socket, &fdSet);
221 SubscriptionMutex.Lock(); //Must unsubscribe this socket from all events (if any)
222 for (std::map< LSCPEvent::event_t, std::list<int> >::iterator iter = eventSubscriptions.begin(); iter != eventSubscriptions.end(); iter++) {
223 iter->second.remove(socket);
224 }
225 SubscriptionMutex.Unlock();
226 NotifyMutex.Lock();
227 bufferedCommands.erase(socket);
228 bufferedNotifies.erase(socket);
229 close(socket);
230 NotifyMutex.Unlock();
231 }
232
233 int LSCPServer::EventSubscribers( std::list<LSCPEvent::event_t> events ) {
234 int subs = 0;
235 SubscriptionMutex.Lock();
236 for( std::list<LSCPEvent::event_t>::iterator iter = events.begin();
237 iter != events.end(); iter++)
238 {
239 subs += eventSubscriptions.count(*iter);
240 }
241 SubscriptionMutex.Unlock();
242 return subs;
243 }
244
245 void LSCPServer::SendLSCPNotify( LSCPEvent event ) {
246 SubscriptionMutex.Lock();
247 if (eventSubscriptions.count(event.GetType()) == 0) {
248 SubscriptionMutex.Unlock(); //Nobody is subscribed to this event
249 return;
250 }
251 std::list<int>::iterator iter = eventSubscriptions[event.GetType()].begin();
252 std::list<int>::iterator end = eventSubscriptions[event.GetType()].end();
253 String notify = event.Produce();
254
255 while (true) {
256 if (NotifyMutex.Trylock()) {
257 for(;iter != end; iter++)
258 send(*iter, notify.c_str(), notify.size(), 0);
259 NotifyMutex.Unlock();
260 break;
261 } else {
262 if (NotifyBufferMutex.Trylock()) {
263 for(;iter != end; iter++)
264 bufferedNotifies[*iter] += notify;
265 NotifyBufferMutex.Unlock();
266 break;
267 }
268 }
269 }
270 SubscriptionMutex.Unlock();
271 }
272
273 extern int GetLSCPCommand( void *buf, int max_size ) {
274 String command = LSCPServer::bufferedCommands[LSCPServer::currentSocket];
275 if (command.size() == 0) { //Parser wants input but we have nothing.
276 strcpy((char*) buf, "\n"); //So give it an empty command
277 return 1; //to keep it happy.
278 }
279
280 if (max_size < command.size()) {
281 std::cerr << "getLSCPCommand: Flex buffer too small, ignoring the command." << std::endl;
282 return 0; //This will never happen
283 }
284
285 strcpy((char*) buf, command.c_str());
286 LSCPServer::bufferedCommands.erase(LSCPServer::currentSocket);
287 return command.size();
288 }
289
290 /**
291 * Will be called to try to read the command from the socket
292 * If command is read, it will return true. Otherwise false is returned.
293 * In any case the received portion (complete or incomplete) is saved into bufferedCommand map.
294 */
295 bool LSCPServer::GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter ) {
296 int socket = (*iter).hSession;
297 char c;
298 int i = 0;
299 while (true) {
300 int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now
301 if (result == 0) { //socket was selected, so 0 here means client has closed the connection
302 CloseConnection(iter);
303 break;
304 }
305 if (result == 1) {
306 if (c == '\r')
307 continue; //Ignore CR
308 if (c == '\n') {
309 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Received \'" + bufferedCommands[socket] + "\' on socket", socket));
310 bufferedCommands[socket] += "\n";
311 return true; //Complete command was read
312 }
313 bufferedCommands[socket] += c;
314 }
315 if (result == -1) {
316 if (errno == EAGAIN) //Would block, try again later.
317 return false;
318 switch(errno) {
319 case EBADF:
320 dmsg(2,("LSCPScanner: The argument s is an invalid descriptor.\n"));
321 break;
322 case ECONNREFUSED:
323 dmsg(2,("LSCPScanner: A remote host refused to allow the network connection (typically because it is not running the requested service).\n"));
324 break;
325 case ENOTCONN:
326 dmsg(2,("LSCPScanner: The socket is associated with a connection-oriented protocol and has not been connected (see connect(2) and accept(2)).\n"));
327 break;
328 case ENOTSOCK:
329 dmsg(2,("LSCPScanner: The argument s does not refer to a socket.\n"));
330 break;
331 case EAGAIN:
332 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"));
333 break;
334 case EINTR:
335 dmsg(2,("LSCPScanner: The receive was interrupted by delivery of a signal before any data were available.\n"));
336 break;
337 case EFAULT:
338 dmsg(2,("LSCPScanner: The receive buffer pointer(s) point outside the process's address space.\n"));
339 break;
340 case EINVAL:
341 dmsg(2,("LSCPScanner: Invalid argument passed.\n"));
342 break;
343 case ENOMEM:
344 dmsg(2,("LSCPScanner: Could not allocate memory for recvmsg.\n"));
345 break;
346 default:
347 dmsg(2,("LSCPScanner: Unknown recv() error.\n"));
348 break;
349 }
350 CloseConnection(iter);
351 break;
352 }
353 }
354 return false;
355 }
356
357 /**
358 * Will be called by the parser whenever it wants to send an answer to the
359 * client / frontend.
360 *
361 * @param ReturnMessage - message that will be send to the client
362 */
363 void LSCPServer::AnswerClient(String ReturnMessage) {
364 dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));
365 if (currentSocket != -1) {
366 NotifyMutex.Lock();
367 send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);
368 NotifyMutex.Unlock();
369 }
370 }
371
372 /**
373 * Find a created audio output device index.
374 */
375 int LSCPServer::GetAudioOutputDeviceIndex ( AudioOutputDevice *pDevice )
376 {
377 // Search for the created device to get its index
378 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
379 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
380 for (; iter != devices.end(); iter++) {
381 if (iter->second == pDevice)
382 return iter->first;
383 }
384 // Not found.
385 return -1;
386 }
387
388 /**
389 * Find a created midi input device index.
390 */
391 int LSCPServer::GetMidiInputDeviceIndex ( MidiInputDevice *pDevice )
392 {
393 // Search for the created device to get its index
394 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
395 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
396 for (; iter != devices.end(); iter++) {
397 if (iter->second == pDevice)
398 return iter->first;
399 }
400 // Not found.
401 return -1;
402 }
403
404 String LSCPServer::CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters) {
405 dmsg(2,("LSCPServer: CreateAudioOutputDevice(Driver=%s)\n", Driver.c_str()));
406 LSCPResultSet result;
407 try {
408 AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters);
409 // search for the created device to get its index
410 int index = GetAudioOutputDeviceIndex(pDevice);
411 if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device.");
412 result = index; // success
413 }
414 catch (LinuxSamplerException e) {
415 result.Error(e);
416 }
417 return result.Produce();
418 }
419
420 String LSCPServer::CreateMidiInputDevice(String Driver, std::map<String,String> Parameters) {
421 dmsg(2,("LSCPServer: CreateMidiInputDevice(Driver=%s)\n", Driver.c_str()));
422 LSCPResultSet result;
423 try {
424 MidiInputDevice* pDevice = pSampler->CreateMidiInputDevice(Driver, Parameters);
425 // search for the created device to get its index
426 int index = GetMidiInputDeviceIndex(pDevice);
427 if (index == -1) throw LinuxSamplerException("Internal error: could not find created midi input device.");
428 result = index; // success
429 }
430 catch (LinuxSamplerException e) {
431 result.Error(e);
432 }
433 return result.Produce();
434 }
435
436 String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) {
437 dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex));
438 LSCPResultSet result;
439 try {
440 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
441 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
442 AudioOutputDevice* pDevice = devices[DeviceIndex];
443 pSampler->DestroyAudioOutputDevice(pDevice);
444 }
445 catch (LinuxSamplerException e) {
446 result.Error(e);
447 }
448 return result.Produce();
449 }
450
451 String LSCPServer::DestroyMidiInputDevice(uint DeviceIndex) {
452 dmsg(2,("LSCPServer: DestroyMidiInputDevice(DeviceIndex=%d)\n", DeviceIndex));
453 LSCPResultSet result;
454 try {
455 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
456 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
457 MidiInputDevice* pDevice = devices[DeviceIndex];
458 pSampler->DestroyMidiInputDevice(pDevice);
459 }
460 catch (LinuxSamplerException e) {
461 result.Error(e);
462 }
463 return result.Produce();
464 }
465
466 /**
467 * Will be called by the parser to load an instrument.
468 */
469 String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground) {
470 dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));
471 LSCPResultSet result;
472 try {
473 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
474 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
475 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
476 if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel yet");
477 if (!pSamplerChannel->GetAudioOutputDevice())
478 throw LinuxSamplerException("No audio output device connected to sampler channel");
479 if (bBackground) {
480 InstrumentLoader.StartNewLoad(Filename, uiInstrument, pEngineChannel);
481 }
482 else {
483 // tell the engine channel which instrument to load
484 pEngineChannel->PrepareLoadInstrument(Filename.c_str(), uiInstrument);
485 // actually start to load the instrument (blocks until completed)
486 pEngineChannel->LoadInstrument();
487 }
488 }
489 catch (LinuxSamplerException e) {
490 result.Error(e);
491 }
492 return result.Produce();
493 }
494
495 /**
496 * Will be called by the parser to assign a sampler engine type to a
497 * sampler channel.
498 */
499 String LSCPServer::SetEngineType(String EngineName, uint uiSamplerChannel) {
500 dmsg(2,("LSCPServer: LoadEngine(EngineName=%s,SamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel));
501 LSCPResultSet result;
502 try {
503 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
504 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
505 LockRTNotify();
506 pSamplerChannel->SetEngineType(EngineName);
507 UnlockRTNotify();
508 }
509 catch (LinuxSamplerException e) {
510 result.Error(e);
511 }
512 return result.Produce();
513 }
514
515 /**
516 * Will be called by the parser to get the amount of sampler channels.
517 */
518 String LSCPServer::GetChannels() {
519 dmsg(2,("LSCPServer: GetChannels()\n"));
520 LSCPResultSet result;
521 result.Add(pSampler->SamplerChannels());
522 return result.Produce();
523 }
524
525 /**
526 * Will be called by the parser to get the list of sampler channels.
527 */
528 String LSCPServer::ListChannels() {
529 dmsg(2,("LSCPServer: ListChannels()\n"));
530 String list;
531 std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
532 std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
533 for (; iter != channels.end(); iter++) {
534 if (list != "") list += ",";
535 list += ToString(iter->first);
536 }
537 LSCPResultSet result;
538 result.Add(list);
539 return result.Produce();
540 }
541
542 /**
543 * Will be called by the parser to add a sampler channel.
544 */
545 String LSCPServer::AddChannel() {
546 dmsg(2,("LSCPServer: AddChannel()\n"));
547 SamplerChannel* pSamplerChannel = pSampler->AddSamplerChannel();
548 LSCPResultSet result(pSamplerChannel->Index());
549 return result.Produce();
550 }
551
552 /**
553 * Will be called by the parser to remove a sampler channel.
554 */
555 String LSCPServer::RemoveChannel(uint uiSamplerChannel) {
556 dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));
557 LSCPResultSet result;
558 LockRTNotify();
559 pSampler->RemoveSamplerChannel(uiSamplerChannel);
560 UnlockRTNotify();
561 return result.Produce();
562 }
563
564 /**
565 * Will be called by the parser to get the amount of all available engines.
566 */
567 String LSCPServer::GetAvailableEngines() {
568 dmsg(2,("LSCPServer: GetAvailableEngines()\n"));
569 LSCPResultSet result("1");
570 return result.Produce();
571 }
572
573 /**
574 * Will be called by the parser to get a list of all available engines.
575 */
576 String LSCPServer::ListAvailableEngines() {
577 dmsg(2,("LSCPServer: ListAvailableEngines()\n"));
578 LSCPResultSet result("\'GIG\'");
579 return result.Produce();
580 }
581
582 /**
583 * Will be called by the parser to get descriptions for a particular
584 * sampler engine.
585 */
586 String LSCPServer::GetEngineInfo(String EngineName) {
587 dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));
588 LSCPResultSet result;
589 try {
590 Engine* pEngine = EngineFactory::Create(EngineName);
591 result.Add("DESCRIPTION", pEngine->Description());
592 result.Add("VERSION", pEngine->Version());
593 EngineFactory::Destroy(pEngine);
594 }
595 catch (LinuxSamplerException e) {
596 result.Error(e);
597 }
598 return result.Produce();
599 }
600
601 /**
602 * Will be called by the parser to get informations about a particular
603 * sampler channel.
604 */
605 String LSCPServer::GetChannelInfo(uint uiSamplerChannel) {
606 dmsg(2,("LSCPServer: GetChannelInfo(SamplerChannel=%d)\n", uiSamplerChannel));
607 LSCPResultSet result;
608 try {
609 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
610 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
611 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
612
613 //Defaults values
614 String EngineName = "NONE";
615 float Volume = 0.0f;
616 String InstrumentFileName = "NONE";
617 String InstrumentName = "NONE";
618 int InstrumentIndex = -1;
619 int InstrumentStatus = -1;
620 int AudioOutputChannels = 0;
621 String AudioRouting;
622
623 if (pEngineChannel) {
624 EngineName = pEngineChannel->EngineName();
625 AudioOutputChannels = pEngineChannel->Channels();
626 Volume = pEngineChannel->Volume();
627 InstrumentStatus = pEngineChannel->InstrumentStatus();
628 InstrumentIndex = pEngineChannel->InstrumentIndex();
629 if (InstrumentIndex != -1) {
630 InstrumentFileName = pEngineChannel->InstrumentFileName();
631 InstrumentName = pEngineChannel->InstrumentName();
632 }
633 for (int chan = 0; chan < pEngineChannel->Channels(); chan++) {
634 if (AudioRouting != "") AudioRouting += ",";
635 AudioRouting += ToString(pEngineChannel->OutputChannel(chan));
636 }
637 }
638
639 result.Add("ENGINE_NAME", EngineName);
640 result.Add("VOLUME", Volume);
641
642 //Some not-so-hardcoded stuff to make GUI look good
643 result.Add("AUDIO_OUTPUT_DEVICE", GetAudioOutputDeviceIndex(pSamplerChannel->GetAudioOutputDevice()));
644 result.Add("AUDIO_OUTPUT_CHANNELS", AudioOutputChannels);
645 result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);
646
647 result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));
648 result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());
649 if (pSamplerChannel->GetMidiInputChannel() == MidiInputPort::midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");
650 else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
651
652 result.Add("INSTRUMENT_FILE", InstrumentFileName);
653 result.Add("INSTRUMENT_NR", InstrumentIndex);
654 result.Add("INSTRUMENT_NAME", InstrumentName);
655 result.Add("INSTRUMENT_STATUS", InstrumentStatus);
656 }
657 catch (LinuxSamplerException e) {
658 result.Error(e);
659 }
660 return result.Produce();
661 }
662
663 /**
664 * Will be called by the parser to get the amount of active voices on a
665 * particular sampler channel.
666 */
667 String LSCPServer::GetVoiceCount(uint uiSamplerChannel) {
668 dmsg(2,("LSCPServer: GetVoiceCount(SamplerChannel=%d)\n", uiSamplerChannel));
669 LSCPResultSet result;
670 try {
671 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
672 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
673 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
674 if (!pEngineChannel) throw LinuxSamplerException("No engine loaded on sampler channel");
675 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
676 result.Add(pEngineChannel->GetEngine()->VoiceCount());
677 }
678 catch (LinuxSamplerException e) {
679 result.Error(e);
680 }
681 return result.Produce();
682 }
683
684 /**
685 * Will be called by the parser to get the amount of active disk streams on a
686 * particular sampler channel.
687 */
688 String LSCPServer::GetStreamCount(uint uiSamplerChannel) {
689 dmsg(2,("LSCPServer: GetStreamCount(SamplerChannel=%d)\n", uiSamplerChannel));
690 LSCPResultSet result;
691 try {
692 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
693 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
694 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
695 if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
696 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
697 result.Add(pEngineChannel->GetEngine()->DiskStreamCount());
698 }
699 catch (LinuxSamplerException e) {
700 result.Error(e);
701 }
702 return result.Produce();
703 }
704
705 /**
706 * Will be called by the parser to get the buffer fill states of all disk
707 * streams on a particular sampler channel.
708 */
709 String LSCPServer::GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel) {
710 dmsg(2,("LSCPServer: GetBufferFill(ResponseType=%d, SamplerChannel=%d)\n", ResponseType, uiSamplerChannel));
711 LSCPResultSet result;
712 try {
713 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
714 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
715 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
716 if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
717 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
718 if (!pEngineChannel->GetEngine()->DiskStreamSupported()) result.Add("NA");
719 else {
720 switch (ResponseType) {
721 case fill_response_bytes:
722 result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillBytes());
723 break;
724 case fill_response_percentage:
725 result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillPercentage());
726 break;
727 default:
728 throw LinuxSamplerException("Unknown fill response type");
729 }
730 }
731 }
732 catch (LinuxSamplerException e) {
733 result.Error(e);
734 }
735 return result.Produce();
736 }
737
738 String LSCPServer::GetAvailableAudioOutputDrivers() {
739 dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));
740 LSCPResultSet result;
741 try {
742 int n = AudioOutputDeviceFactory::AvailableDrivers().size();
743 result.Add(n);
744 }
745 catch (LinuxSamplerException e) {
746 result.Error(e);
747 }
748 return result.Produce();
749 }
750
751 String LSCPServer::ListAvailableAudioOutputDrivers() {
752 dmsg(2,("LSCPServer: ListAvailableAudioOutputDrivers()\n"));
753 LSCPResultSet result;
754 try {
755 String s = AudioOutputDeviceFactory::AvailableDriversAsString();
756 result.Add(s);
757 }
758 catch (LinuxSamplerException e) {
759 result.Error(e);
760 }
761 return result.Produce();
762 }
763
764 String LSCPServer::GetAvailableMidiInputDrivers() {
765 dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));
766 LSCPResultSet result;
767 try {
768 int n = MidiInputDeviceFactory::AvailableDrivers().size();
769 result.Add(n);
770 }
771 catch (LinuxSamplerException e) {
772 result.Error(e);
773 }
774 return result.Produce();
775 }
776
777 String LSCPServer::ListAvailableMidiInputDrivers() {
778 dmsg(2,("LSCPServer: ListAvailableMidiInputDrivers()\n"));
779 LSCPResultSet result;
780 try {
781 String s = MidiInputDeviceFactory::AvailableDriversAsString();
782 result.Add(s);
783 }
784 catch (LinuxSamplerException e) {
785 result.Error(e);
786 }
787 return result.Produce();
788 }
789
790 String LSCPServer::GetMidiInputDriverInfo(String Driver) {
791 dmsg(2,("LSCPServer: GetMidiInputDriverInfo(Driver=%s)\n",Driver.c_str()));
792 LSCPResultSet result;
793 try {
794 result.Add("DESCRIPTION", MidiInputDeviceFactory::GetDriverDescription(Driver));
795 result.Add("VERSION", MidiInputDeviceFactory::GetDriverVersion(Driver));
796
797 std::map<String,DeviceCreationParameter*> parameters = MidiInputDeviceFactory::GetAvailableDriverParameters(Driver);
798 if (parameters.size()) { // if there are parameters defined for this driver
799 String s;
800 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
801 for (;iter != parameters.end(); iter++) {
802 if (s != "") s += ",";
803 s += iter->first;
804 }
805 result.Add("PARAMETERS", s);
806 }
807 }
808 catch (LinuxSamplerException e) {
809 result.Error(e);
810 }
811 return result.Produce();
812 }
813
814 String LSCPServer::GetAudioOutputDriverInfo(String Driver) {
815 dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));
816 LSCPResultSet result;
817 try {
818 result.Add("DESCRIPTION", AudioOutputDeviceFactory::GetDriverDescription(Driver));
819 result.Add("VERSION", AudioOutputDeviceFactory::GetDriverVersion(Driver));
820
821 std::map<String,DeviceCreationParameter*> parameters = AudioOutputDeviceFactory::GetAvailableDriverParameters(Driver);
822 if (parameters.size()) { // if there are parameters defined for this driver
823 String s;
824 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
825 for (;iter != parameters.end(); iter++) {
826 if (s != "") s += ",";
827 s += iter->first;
828 }
829 result.Add("PARAMETERS", s);
830 }
831 }
832 catch (LinuxSamplerException e) {
833 result.Error(e);
834 }
835 return result.Produce();
836 }
837
838 String LSCPServer::GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
839 dmsg(2,("LSCPServer: GetMidiInputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
840 LSCPResultSet result;
841 try {
842 DeviceCreationParameter* pParameter = MidiInputDeviceFactory::GetDriverParameter(Driver, Parameter);
843 result.Add("TYPE", pParameter->Type());
844 result.Add("DESCRIPTION", pParameter->Description());
845 result.Add("MANDATORY", pParameter->Mandatory());
846 result.Add("FIX", pParameter->Fix());
847 result.Add("MULTIPLICITY", pParameter->Multiplicity());
848 optional<String> oDepends = pParameter->Depends();
849 optional<String> oDefault = pParameter->Default(DependencyList);
850 optional<String> oRangeMin = pParameter->RangeMin(DependencyList);
851 optional<String> oRangeMax = pParameter->RangeMax(DependencyList);
852 optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
853 if (oDepends) result.Add("DEPENDS", *oDepends);
854 if (oDefault) result.Add("DEFAULT", *oDefault);
855 if (oRangeMin) result.Add("RANGE_MIN", *oRangeMin);
856 if (oRangeMax) result.Add("RANGE_MAX", *oRangeMax);
857 if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
858 }
859 catch (LinuxSamplerException e) {
860 result.Error(e);
861 }
862 return result.Produce();
863 }
864
865 String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
866 dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
867 LSCPResultSet result;
868 try {
869 DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);
870 result.Add("TYPE", pParameter->Type());
871 result.Add("DESCRIPTION", pParameter->Description());
872 result.Add("MANDATORY", pParameter->Mandatory());
873 result.Add("FIX", pParameter->Fix());
874 result.Add("MULTIPLICITY", pParameter->Multiplicity());
875 optional<String> oDepends = pParameter->Depends();
876 optional<String> oDefault = pParameter->Default(DependencyList);
877 optional<String> oRangeMin = pParameter->RangeMin(DependencyList);
878 optional<String> oRangeMax = pParameter->RangeMax(DependencyList);
879 optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
880 if (oDepends) result.Add("DEPENDS", *oDepends);
881 if (oDefault) result.Add("DEFAULT", *oDefault);
882 if (oRangeMin) result.Add("RANGE_MIN", *oRangeMin);
883 if (oRangeMax) result.Add("RANGE_MAX", *oRangeMax);
884 if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
885 }
886 catch (LinuxSamplerException e) {
887 result.Error(e);
888 }
889 return result.Produce();
890 }
891
892 String LSCPServer::GetAudioOutputDeviceCount() {
893 dmsg(2,("LSCPServer: GetAudioOutputDeviceCount()\n"));
894 LSCPResultSet result;
895 try {
896 uint count = pSampler->AudioOutputDevices();
897 result.Add(count); // success
898 }
899 catch (LinuxSamplerException e) {
900 result.Error(e);
901 }
902 return result.Produce();
903 }
904
905 String LSCPServer::GetMidiInputDeviceCount() {
906 dmsg(2,("LSCPServer: GetMidiInputDeviceCount()\n"));
907 LSCPResultSet result;
908 try {
909 uint count = pSampler->MidiInputDevices();
910 result.Add(count); // success
911 }
912 catch (LinuxSamplerException e) {
913 result.Error(e);
914 }
915 return result.Produce();
916 }
917
918 String LSCPServer::GetAudioOutputDevices() {
919 dmsg(2,("LSCPServer: GetAudioOutputDevices()\n"));
920 LSCPResultSet result;
921 try {
922 String s;
923 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
924 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
925 for (; iter != devices.end(); iter++) {
926 if (s != "") s += ",";
927 s += ToString(iter->first);
928 }
929 result.Add(s);
930 }
931 catch (LinuxSamplerException e) {
932 result.Error(e);
933 }
934 return result.Produce();
935 }
936
937 String LSCPServer::GetMidiInputDevices() {
938 dmsg(2,("LSCPServer: GetMidiInputDevices()\n"));
939 LSCPResultSet result;
940 try {
941 String s;
942 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
943 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
944 for (; iter != devices.end(); iter++) {
945 if (s != "") s += ",";
946 s += ToString(iter->first);
947 }
948 result.Add(s);
949 }
950 catch (LinuxSamplerException e) {
951 result.Error(e);
952 }
953 return result.Produce();
954 }
955
956 String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {
957 dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
958 LSCPResultSet result;
959 try {
960 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
961 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
962 AudioOutputDevice* pDevice = devices[DeviceIndex];
963 result.Add("DRIVER", pDevice->Driver());
964 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
965 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
966 for (; iter != parameters.end(); iter++) {
967 result.Add(iter->first, iter->second->Value());
968 }
969 }
970 catch (LinuxSamplerException e) {
971 result.Error(e);
972 }
973 return result.Produce();
974 }
975
976 String LSCPServer::GetMidiInputDeviceInfo(uint DeviceIndex) {
977 dmsg(2,("LSCPServer: GetMidiInputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
978 LSCPResultSet result;
979 try {
980 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
981 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
982 MidiInputDevice* pDevice = devices[DeviceIndex];
983 result.Add("DRIVER", pDevice->Driver());
984 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
985 std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
986 for (; iter != parameters.end(); iter++) {
987 result.Add(iter->first, iter->second->Value());
988 }
989 }
990 catch (LinuxSamplerException e) {
991 result.Error(e);
992 }
993 return result.Produce();
994 }
995 String LSCPServer::GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex) {
996 dmsg(2,("LSCPServer: GetMidiInputPortInfo(DeviceIndex=%d, PortIndex=%d)\n",DeviceIndex, PortIndex));
997 LSCPResultSet result;
998 try {
999 // get MIDI input device
1000 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1001 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1002 MidiInputDevice* pDevice = devices[DeviceIndex];
1003
1004 // get MIDI port
1005 MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
1006 if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
1007
1008 // return the values of all MIDI port parameters
1009 std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
1010 std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
1011 for (; iter != parameters.end(); iter++) {
1012 result.Add(iter->first, iter->second->Value());
1013 }
1014 }
1015 catch (LinuxSamplerException e) {
1016 result.Error(e);
1017 }
1018 return result.Produce();
1019 }
1020
1021 String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {
1022 dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));
1023 LSCPResultSet result;
1024 try {
1025 // get audio output device
1026 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1027 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1028 AudioOutputDevice* pDevice = devices[DeviceId];
1029
1030 // get audio channel
1031 AudioChannel* pChannel = pDevice->Channel(ChannelId);
1032 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1033
1034 // return the values of all audio channel parameters
1035 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1036 std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
1037 for (; iter != parameters.end(); iter++) {
1038 result.Add(iter->first, iter->second->Value());
1039 }
1040 }
1041 catch (LinuxSamplerException e) {
1042 result.Error(e);
1043 }
1044 return result.Produce();
1045 }
1046
1047 String LSCPServer::GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName) {
1048 dmsg(2,("LSCPServer: GetMidiInputPortParameterInfo(DeviceId=%d,PortId=%d,ParameterName=%s)\n",DeviceId,PortId,ParameterName.c_str()));
1049 LSCPResultSet result;
1050 try {
1051 // get MIDI input device
1052 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1053 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no midi input device with index " + ToString(DeviceId) + ".");
1054 MidiInputDevice* pDevice = devices[DeviceId];
1055
1056 // get midi port
1057 MidiInputPort* pPort = pDevice->GetPort(PortId);
1058 if (!pPort) throw LinuxSamplerException("Midi input device does not have port " + ToString(PortId) + ".");
1059
1060 // get desired port parameter
1061 std::map<String,DeviceRuntimeParameter*> parameters = pPort->PortParameters();
1062 if (!parameters.count(ParameterName)) throw LinuxSamplerException("Midi port does not provide a parameter '" + ParameterName + "'.");
1063 DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1064
1065 // return all fields of this audio channel parameter
1066 result.Add("TYPE", pParameter->Type());
1067 result.Add("DESCRIPTION", pParameter->Description());
1068 result.Add("FIX", pParameter->Fix());
1069 result.Add("MULTIPLICITY", pParameter->Multiplicity());
1070 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
1071 if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
1072 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1073 }
1074 catch (LinuxSamplerException e) {
1075 result.Error(e);
1076 }
1077 return result.Produce();
1078 }
1079
1080 String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {
1081 dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));
1082 LSCPResultSet result;
1083 try {
1084 // get audio output device
1085 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1086 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1087 AudioOutputDevice* pDevice = devices[DeviceId];
1088
1089 // get audio channel
1090 AudioChannel* pChannel = pDevice->Channel(ChannelId);
1091 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1092
1093 // get desired audio channel parameter
1094 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1095 if (!parameters.count(ParameterName)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");
1096 DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1097
1098 // return all fields of this audio channel parameter
1099 result.Add("TYPE", pParameter->Type());
1100 result.Add("DESCRIPTION", pParameter->Description());
1101 result.Add("FIX", pParameter->Fix());
1102 result.Add("MULTIPLICITY", pParameter->Multiplicity());
1103 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
1104 if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
1105 if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1106 }
1107 catch (LinuxSamplerException e) {
1108 result.Error(e);
1109 }
1110 return result.Produce();
1111 }
1112
1113 String LSCPServer::SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal) {
1114 dmsg(2,("LSCPServer: SetAudioOutputChannelParameter(DeviceId=%d,ChannelId=%d,ParamKey=%s,ParamVal=%s)\n",DeviceId,ChannelId,ParamKey.c_str(),ParamVal.c_str()));
1115 LSCPResultSet result;
1116 try {
1117 // get audio output device
1118 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1119 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1120 AudioOutputDevice* pDevice = devices[DeviceId];
1121
1122 // get audio channel
1123 AudioChannel* pChannel = pDevice->Channel(ChannelId);
1124 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1125
1126 // get desired audio channel parameter
1127 std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1128 if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");
1129 DeviceRuntimeParameter* pParameter = parameters[ParamKey];
1130
1131 // set new channel parameter value
1132 pParameter->SetValue(ParamVal);
1133 }
1134 catch (LinuxSamplerException e) {
1135 result.Error(e);
1136 }
1137 return result.Produce();
1138 }
1139
1140 String LSCPServer::SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1141 dmsg(2,("LSCPServer: SetAudioOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1142 LSCPResultSet result;
1143 try {
1144 std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1145 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
1146 AudioOutputDevice* pDevice = devices[DeviceIndex];
1147 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1148 if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1149 parameters[ParamKey]->SetValue(ParamVal);
1150 }
1151 catch (LinuxSamplerException e) {
1152 result.Error(e);
1153 }
1154 return result.Produce();
1155 }
1156
1157 String LSCPServer::SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1158 dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1159 LSCPResultSet result;
1160 try {
1161 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1162 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1163 MidiInputDevice* pDevice = devices[DeviceIndex];
1164 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1165 if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1166 parameters[ParamKey]->SetValue(ParamVal);
1167 }
1168 catch (LinuxSamplerException e) {
1169 result.Error(e);
1170 }
1171 return result.Produce();
1172 }
1173
1174 String LSCPServer::SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal) {
1175 dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1176 LSCPResultSet result;
1177 try {
1178 // get MIDI input device
1179 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1180 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1181 MidiInputDevice* pDevice = devices[DeviceIndex];
1182
1183 // get MIDI port
1184 MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
1185 if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
1186
1187 // set port parameter value
1188 std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
1189 if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(PortIndex) + " does not have a parameter '" + ParamKey + "'");
1190 parameters[ParamKey]->SetValue(ParamVal);
1191 }
1192 catch (LinuxSamplerException e) {
1193 result.Error(e);
1194 }
1195 return result.Produce();
1196 }
1197
1198 /**
1199 * Will be called by the parser to change the audio output channel for
1200 * playback on a particular sampler channel.
1201 */
1202 String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {
1203 dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));
1204 LSCPResultSet result;
1205 try {
1206 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1207 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1208 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1209 if (!pEngineChannel) throw LinuxSamplerException("No engine type yet assigned to sampler channel " + ToString(uiSamplerChannel));
1210 if (!pSamplerChannel->GetAudioOutputDevice()) throw LinuxSamplerException("No audio output device connected to sampler channel " + ToString(uiSamplerChannel));
1211 pEngineChannel->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel);
1212 }
1213 catch (LinuxSamplerException e) {
1214 result.Error(e);
1215 }
1216 return result.Produce();
1217 }
1218
1219 String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint uiSamplerChannel) {
1220 dmsg(2,("LSCPServer: SetAudiotOutputDevice(AudioDeviceId=%d, SamplerChannel=%d)\n",AudioDeviceId,uiSamplerChannel));
1221 LSCPResultSet result;
1222 try {
1223 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1224 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1225 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1226 if (!devices.count(AudioDeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId));
1227 AudioOutputDevice* pDevice = devices[AudioDeviceId];
1228 pSamplerChannel->SetAudioOutputDevice(pDevice);
1229 }
1230 catch (LinuxSamplerException e) {
1231 result.Error(e);
1232 }
1233 return result.Produce();
1234 }
1235
1236 String LSCPServer::SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel) {
1237 dmsg(2,("LSCPServer: SetAudioOutputType(String AudioOutputDriver=%s, SamplerChannel=%d)\n",AudioOutputDriver.c_str(),uiSamplerChannel));
1238 LSCPResultSet result;
1239 try {
1240 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1241 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1242 // Driver type name aliasing...
1243 if (AudioOutputDriver == "Alsa") AudioOutputDriver = "ALSA";
1244 if (AudioOutputDriver == "Jack") AudioOutputDriver = "JACK";
1245 // Check if there's one audio output device already created
1246 // for the intended audio driver type (AudioOutputDriver)...
1247 AudioOutputDevice *pDevice = NULL;
1248 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1249 std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
1250 for (; iter != devices.end(); iter++) {
1251 if ((iter->second)->Driver() == AudioOutputDriver) {
1252 pDevice = iter->second;
1253 break;
1254 }
1255 }
1256 // If it doesn't exist, create a new one with default parameters...
1257 if (pDevice == NULL) {
1258 std::map<String,String> params;
1259 pDevice = pSampler->CreateAudioOutputDevice(AudioOutputDriver, params);
1260 }
1261 // Must have a device...
1262 if (pDevice == NULL)
1263 throw LinuxSamplerException("Internal error: could not create audio output device.");
1264 // Set it as the current channel device...
1265 pSamplerChannel->SetAudioOutputDevice(pDevice);
1266 }
1267 catch (LinuxSamplerException e) {
1268 result.Error(e);
1269 }
1270 return result.Produce();
1271 }
1272
1273 String LSCPServer::SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel) {
1274 dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIPort=%d, SamplerChannel=%d)\n",MIDIPort,uiSamplerChannel));
1275 LSCPResultSet result;
1276 try {
1277 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1278 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1279 pSamplerChannel->SetMidiInputPort(MIDIPort);
1280 }
1281 catch (LinuxSamplerException e) {
1282 result.Error(e);
1283 }
1284 return result.Produce();
1285 }
1286
1287 String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {
1288 dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n",MIDIChannel,uiSamplerChannel));
1289 LSCPResultSet result;
1290 try {
1291 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1292 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1293 pSamplerChannel->SetMidiInputChannel((MidiInputPort::midi_chan_t) MIDIChannel);
1294 }
1295 catch (LinuxSamplerException e) {
1296 result.Error(e);
1297 }
1298 return result.Produce();
1299 }
1300
1301 String LSCPServer::SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel) {
1302 dmsg(2,("LSCPServer: SetMIDIInputDevice(MIDIDeviceId=%d, SamplerChannel=%d)\n",MIDIDeviceId,uiSamplerChannel));
1303 LSCPResultSet result;
1304 try {
1305 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1306 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1307 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1308 if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1309 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1310 pSamplerChannel->SetMidiInputDevice(pDevice);
1311 }
1312 catch (LinuxSamplerException e) {
1313 result.Error(e);
1314 }
1315 return result.Produce();
1316 }
1317
1318 String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {
1319 dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));
1320 LSCPResultSet result;
1321 try {
1322 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1323 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1324 // Driver type name aliasing...
1325 if (MidiInputDriver == "Alsa") MidiInputDriver = "ALSA";
1326 // Check if there's one MIDI input device already created
1327 // for the intended MIDI driver type (MidiInputDriver)...
1328 MidiInputDevice *pDevice = NULL;
1329 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1330 std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
1331 for (; iter != devices.end(); iter++) {
1332 if ((iter->second)->Driver() == MidiInputDriver) {
1333 pDevice = iter->second;
1334 break;
1335 }
1336 }
1337 // If it doesn't exist, create a new one with default parameters...
1338 if (pDevice == NULL) {
1339 std::map<String,String> params;
1340 pDevice = pSampler->CreateMidiInputDevice(MidiInputDriver, params);
1341 // Make it with at least one initial port.
1342 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1343 parameters["PORTS"]->SetValue("1");
1344 }
1345 // Must have a device...
1346 if (pDevice == NULL)
1347 throw LinuxSamplerException("Internal error: could not create MIDI input device.");
1348 // Set it as the current channel device...
1349 pSamplerChannel->SetMidiInputDevice(pDevice);
1350 }
1351 catch (LinuxSamplerException e) {
1352 result.Error(e);
1353 }
1354 return result.Produce();
1355 }
1356
1357 /**
1358 * Will be called by the parser to change the MIDI input device, port and channel on which
1359 * engine of a particular sampler channel should listen to.
1360 */
1361 String LSCPServer::SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel) {
1362 dmsg(2,("LSCPServer: SetMIDIInput(MIDIDeviceId=%d, MIDIPort=%d, MIDIChannel=%d, SamplerChannel=%d)\n", MIDIDeviceId, MIDIPort, MIDIChannel, uiSamplerChannel));
1363 LSCPResultSet result;
1364 try {
1365 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1366 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1367 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1368 if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1369 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1370 pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (MidiInputPort::midi_chan_t) MIDIChannel);
1371 }
1372 catch (LinuxSamplerException e) {
1373 result.Error(e);
1374 }
1375 return result.Produce();
1376 }
1377
1378 /**
1379 * Will be called by the parser to change the global volume factor on a
1380 * particular sampler channel.
1381 */
1382 String LSCPServer::SetVolume(double dVolume, uint uiSamplerChannel) {
1383 dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", dVolume, uiSamplerChannel));
1384 LSCPResultSet result;
1385 try {
1386 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1387 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1388 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1389 if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1390 pEngineChannel->Volume(dVolume);
1391 }
1392 catch (LinuxSamplerException e) {
1393 result.Error(e);
1394 }
1395 return result.Produce();
1396 }
1397
1398 /**
1399 * Will be called by the parser to reset a particular sampler channel.
1400 */
1401 String LSCPServer::ResetChannel(uint uiSamplerChannel) {
1402 dmsg(2,("LSCPServer: ResetChannel(SamplerChannel=%d)\n", uiSamplerChannel));
1403 LSCPResultSet result;
1404 try {
1405 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1406 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1407 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1408 if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1409 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
1410 pEngineChannel->GetEngine()->Reset();
1411 }
1412 catch (LinuxSamplerException e) {
1413 result.Error(e);
1414 }
1415 return result.Produce();
1416 }
1417
1418 /**
1419 * Will be called by the parser to reset the whole sampler.
1420 */
1421 String LSCPServer::ResetSampler() {
1422 dmsg(2,("LSCPServer: ResetSampler()\n"));
1423 pSampler->Reset();
1424 LSCPResultSet result;
1425 return result.Produce();
1426 }
1427
1428 /**
1429 * Will be called by the parser to return general informations about this
1430 * sampler.
1431 */
1432 String LSCPServer::GetServerInfo() {
1433 dmsg(2,("LSCPServer: GetServerInfo()\n"));
1434 LSCPResultSet result;
1435 result.Add("DESCRIPTION", "LinuxSampler - modular, streaming capable sampler");
1436 result.Add("VERSION", VERSION);
1437 result.Add("PROTOCOL_VERSION", "1.0");
1438 return result.Produce();
1439 }
1440
1441 /**
1442 * Will be called by the parser to subscribe a client (frontend) on the
1443 * server for receiving event messages.
1444 */
1445 String LSCPServer::SubscribeNotification(LSCPEvent::event_t type) {
1446 dmsg(2,("LSCPServer: SubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1447 LSCPResultSet result;
1448 SubscriptionMutex.Lock();
1449 eventSubscriptions[type].push_back(currentSocket);
1450 SubscriptionMutex.Unlock();
1451 return result.Produce();
1452 }
1453
1454 /**
1455 * Will be called by the parser to unsubscribe a client on the server
1456 * for not receiving further event messages.
1457 */
1458 String LSCPServer::UnsubscribeNotification(LSCPEvent::event_t type) {
1459 dmsg(2,("LSCPServer: UnsubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1460 LSCPResultSet result;
1461 SubscriptionMutex.Lock();
1462 eventSubscriptions[type].remove(currentSocket);
1463 SubscriptionMutex.Unlock();
1464 return result.Produce();
1465 }
1466
1467 static int select_callback(void * lscpResultSet, int argc,
1468 char **argv, char **azColName)
1469 {
1470 LSCPResultSet* resultSet = (LSCPResultSet*) lscpResultSet;
1471 resultSet->Add(argc, argv);
1472 return 0;
1473 }
1474
1475 String LSCPServer::QueryDatabase(String query) {
1476 LSCPResultSet result;
1477 #if HAVE_SQLITE3
1478 char* zErrMsg = NULL;
1479 sqlite3 *db;
1480 String selectStr = "SELECT " + query;
1481
1482 int rc = sqlite3_open("linuxsampler.db", &db);
1483 if (rc == SQLITE_OK)
1484 {
1485 rc = sqlite3_exec(db, selectStr.c_str(), select_callback, &result, &zErrMsg);
1486 }
1487 if ( rc != SQLITE_OK )
1488 {
1489 result.Error(String(zErrMsg), rc);
1490 }
1491 sqlite3_close(db);
1492 #else
1493 result.Error(String("SQLITE3 was not installed when linuxsampler was built. SELECT statement is not available."), 0);
1494 #endif
1495 return result.Produce();
1496 }
1497
1498 /**
1499 * Will be called by the parser to enable or disable echo mode; if echo
1500 * mode is enabled, all commands from the client will (immediately) be
1501 * echoed back to the client.
1502 */
1503 String LSCPServer::SetEcho(yyparse_param_t* pSession, double boolean_value) {
1504 dmsg(2,("LSCPServer: SetEcho(val=%f)\n", boolean_value));
1505 LSCPResultSet result;
1506 try {
1507 if (boolean_value == 0) pSession->bVerbose = false;
1508 else if (boolean_value == 1) pSession->bVerbose = true;
1509 else throw LinuxSamplerException("Not a boolean value, must either be 0 or 1");
1510 }
1511 catch (LinuxSamplerException e) {
1512 result.Error(e);
1513 }
1514 return result.Produce();
1515 }

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