/[svn]/linuxsampler/trunk/src/network/lscpserver.cpp
ViewVC logotype

Contents of /linuxsampler/trunk/src/network/lscpserver.cpp

Parent Directory Parent Directory | Revision Log Revision Log


Revision 527 - (show annotations) (download)
Mon May 9 11:59:58 2005 UTC (15 years, 8 months ago) by capela
File size: 63151 byte(s)
* [bug #9] Fixed for a LSCP command syntax convention
  consistency, regarding the enumeration of available
  sampler engines, Audio and MIDI drivers; this has
  affected the semantics of the following commands:
    GET AVAILABLE_ENGINES
    GET AVAILABLE_AUDIO_DRIVERS
    GET AVAILABLE_MIDI_DRIVERS
  which are now returning an integer count of engines
  and drivers, respectively, while the following
  new commands are now being introduced:
    LIST AVAILABLE_ENGINES
    LIST AVAILABLE_AUDIO_DRIVERS
    LIST AVAILABLE_MIDI_DRIVERS
  taking on the previous functionality, returning
  a comma separated list of names.

* LinuxSampler version bumped to 0.3.1.

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

  ViewVC Help
Powered by ViewVC