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

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Revision 620 - (hide annotations) (download)
Wed Jun 8 23:16:13 2005 UTC (18 years, 9 months ago) by schoenebeck
File size: 64080 byte(s)
* fixed some crashs in LSCP server
  (patch by Grigor Iliev, fixes #19)

1 schoenebeck 35 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5 schoenebeck 56 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 schoenebeck 385 * Copyright (C) 2005 Christian Schoenebeck *
7 schoenebeck 35 * *
8 schoenebeck 385 * This library is free software; you can redistribute it and/or modify *
9 schoenebeck 35 * 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 schoenebeck 385 * This library is distributed in the hope that it will be useful, *
14 schoenebeck 35 * 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 schoenebeck 385 * along with this library; if not, write to the Free Software *
20 schoenebeck 35 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21     * MA 02111-1307 USA *
22     ***************************************************************************/
23    
24     #include "lscpserver.h"
25 senkov 113 #include "lscpresultset.h"
26 senkov 170 #include "lscpevent.h"
27 senkov 397 //#include "../common/global.h"
28 schoenebeck 35
29 schoenebeck 411 #include <fcntl.h>
30    
31 schoenebeck 401 #if HAVE_SQLITE3
32     # include "sqlite3.h"
33 senkov 397 #endif
34    
35 schoenebeck 411 #include "../engines/EngineFactory.h"
36 schoenebeck 203 #include "../drivers/audio/AudioOutputDeviceFactory.h"
37     #include "../drivers/midi/MidiInputDeviceFactory.h"
38 schoenebeck 53
39 senkov 170 /**
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 schoenebeck 210 std::vector<yyparse_param_t> LSCPServer::Sessions = std::vector<yyparse_param_t>();
55 senkov 170 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 senkov 360 Mutex LSCPServer::RTNotifyMutex = Mutex();
62 senkov 170
63 schoenebeck 392 LSCPServer::LSCPServer(Sampler* pSampler) : Thread(true, false, 0, -4) {
64 schoenebeck 53 this->pSampler = pSampler;
65 schoenebeck 556 LSCPEvent::RegisterEvent(LSCPEvent::event_channel_count, "CHANNEL_COUNT");
66 senkov 170 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 schoenebeck 556 LSCPEvent::RegisterEvent(LSCPEvent::event_channel_info, "CHANNEL_INFO");
70 senkov 170 LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");
71 schoenebeck 475 hSocket = -1;
72 schoenebeck 35 }
73    
74 schoenebeck 475 LSCPServer::~LSCPServer() {
75     if (hSocket >= 0) close(hSocket);
76     }
77    
78 schoenebeck 211 /**
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 schoenebeck 35 int LSCPServer::Main() {
93 schoenebeck 475 hSocket = socket(AF_INET, SOCK_STREAM, 0);
94 schoenebeck 35 if (hSocket < 0) {
95     std::cerr << "LSCPServer: Could not create server socket." << std::endl;
96 schoenebeck 53 //return -1;
97     exit(EXIT_FAILURE);
98 schoenebeck 35 }
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 schoenebeck 227 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 schoenebeck 35 }
119    
120     listen(hSocket, 1);
121 schoenebeck 211 Initialized.Set(true);
122 schoenebeck 35
123     // now wait for client connections and handle their requests
124     sockaddr_in client;
125     int length = sizeof(client);
126 senkov 170 FD_ZERO(&fdSet);
127     FD_SET(hSocket, &fdSet);
128     int maxSessions = hSocket;
129 schoenebeck 203
130 schoenebeck 35 while (true) {
131 senkov 170 fd_set selectSet = fdSet;
132 senkov 198 int retval = select(maxSessions+1, &selectSet, NULL, NULL, NULL);
133 senkov 170 if (retval == 0)
134 senkov 198 continue; //Nothing try again
135 senkov 170 if (retval == -1) {
136     std::cerr << "LSCPServer: Socket select error." << std::endl;
137     close(hSocket);
138     exit(EXIT_FAILURE);
139     }
140 schoenebeck 203
141 senkov 170 //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 schoenebeck 35
149 senkov 170 if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
150     std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
151     exit(EXIT_FAILURE);
152     }
153 schoenebeck 35
154 schoenebeck 210 // 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 senkov 170 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 schoenebeck 35
168 senkov 170 //Something was selected and it was not the hSocket, so it must be some command(s) coming.
169 schoenebeck 210 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 senkov 170 if (GetLSCPCommand(iter)) { //Have we read the entire command?
172     dmsg(3,("LSCPServer: Got command on socket %d, calling parser.\n", currentSocket));
173 schoenebeck 219 int dummy; // just a temporary hack to fulfill the restart() function prototype
174     restart(NULL, dummy); // restart the 'scanner'
175 schoenebeck 210 currentSocket = (*iter).hSession; //a hack
176 schoenebeck 475 dmsg(2,("LSCPServer: [%s]\n",bufferedCommands[currentSocket].c_str()));
177 schoenebeck 210 if ((*iter).bVerbose) { // if echo mode enabled
178     AnswerClient(bufferedCommands[currentSocket]);
179     }
180     int result = yyparse(&(*iter));
181 senkov 170 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 schoenebeck 203 break;
190 senkov 170 }
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 schoenebeck 35 }
201     }
202    
203 schoenebeck 210 void LSCPServer::CloseConnection( std::vector<yyparse_param_t>::iterator iter ) {
204     int socket = (*iter).hSession;
205 senkov 170 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 schoenebeck 210 Sessions.erase(iter);
208 senkov 170 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 senkov 360 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 senkov 170 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 schoenebeck 35 /**
279 senkov 170 * 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 schoenebeck 210 bool LSCPServer::GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter ) {
284     int socket = (*iter).hSession;
285 senkov 170 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 schoenebeck 203 if (c == '\r')
295 senkov 170 continue; //Ignore CR
296     if (c == '\n') {
297 senkov 184 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Received \'" + bufferedCommands[socket] + "\' on socket", socket));
298 senkov 170 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 schoenebeck 203 break;
322     case EINTR:
323 senkov 170 dmsg(2,("LSCPScanner: The receive was interrupted by delivery of a signal before any data were available.\n"));
324 schoenebeck 203 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 senkov 170 CloseConnection(iter);
339     break;
340     }
341     }
342     return false;
343     }
344    
345     /**
346 schoenebeck 35 * 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 senkov 170 if (currentSocket != -1) {
354     NotifyMutex.Lock();
355     send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);
356     NotifyMutex.Unlock();
357     }
358 schoenebeck 35 }
359    
360 capela 143 /**
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 senkov 155 /**
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 schoenebeck 123 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 capela 143 int index = GetAudioOutputDeviceIndex(pDevice);
399 schoenebeck 123 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 senkov 155 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 schoenebeck 123 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 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
430 schoenebeck 123 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 senkov 155 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 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
445 senkov 155 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 schoenebeck 35 /**
455     * Will be called by the parser to load an instrument.
456     */
457 capela 137 String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground) {
458 schoenebeck 53 dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));
459 senkov 120 LSCPResultSet result;
460 schoenebeck 53 try {
461     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
462 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
463 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
464     if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel yet");
465 schoenebeck 223 if (!pSamplerChannel->GetAudioOutputDevice())
466 schoenebeck 374 throw LinuxSamplerException("No audio output device connected to sampler channel");
467 capela 137 if (bBackground) {
468 schoenebeck 411 InstrumentLoader.StartNewLoad(Filename, uiInstrument, pEngineChannel);
469 capela 137 }
470 schoenebeck 392 else {
471 schoenebeck 411 // tell the engine channel which instrument to load
472     pEngineChannel->PrepareLoadInstrument(Filename.c_str(), uiInstrument);
473 schoenebeck 392 // actually start to load the instrument (blocks until completed)
474 schoenebeck 411 pEngineChannel->LoadInstrument();
475 schoenebeck 392 }
476 schoenebeck 53 }
477     catch (LinuxSamplerException e) {
478 senkov 120 result.Error(e);
479 schoenebeck 53 }
480 senkov 120 return result.Produce();
481 schoenebeck 35 }
482    
483     /**
484 schoenebeck 411 * Will be called by the parser to assign a sampler engine type to a
485     * sampler channel.
486 schoenebeck 35 */
487 schoenebeck 411 String LSCPServer::SetEngineType(String EngineName, uint uiSamplerChannel) {
488 schoenebeck 53 dmsg(2,("LSCPServer: LoadEngine(EngineName=%s,SamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel));
489 senkov 120 LSCPResultSet result;
490 schoenebeck 475 try {
491 schoenebeck 53 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
492 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
493 senkov 360 LockRTNotify();
494 schoenebeck 411 pSamplerChannel->SetEngineType(EngineName);
495 senkov 360 UnlockRTNotify();
496 schoenebeck 53 }
497     catch (LinuxSamplerException e) {
498 senkov 120 result.Error(e);
499 schoenebeck 53 }
500 senkov 120 return result.Produce();
501 schoenebeck 35 }
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 senkov 120 LSCPResultSet result;
509     result.Add(pSampler->SamplerChannels());
510     return result.Produce();
511 schoenebeck 35 }
512    
513     /**
514 schoenebeck 209 * 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 schoenebeck 35 * Will be called by the parser to add a sampler channel.
532     */
533     String LSCPServer::AddChannel() {
534     dmsg(2,("LSCPServer: AddChannel()\n"));
535 schoenebeck 53 SamplerChannel* pSamplerChannel = pSampler->AddSamplerChannel();
536 senkov 120 LSCPResultSet result(pSamplerChannel->Index());
537     return result.Produce();
538 schoenebeck 35 }
539    
540     /**
541     * Will be called by the parser to remove a sampler channel.
542     */
543 schoenebeck 53 String LSCPServer::RemoveChannel(uint uiSamplerChannel) {
544     dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));
545 senkov 120 LSCPResultSet result;
546 senkov 360 LockRTNotify();
547 schoenebeck 53 pSampler->RemoveSamplerChannel(uiSamplerChannel);
548 senkov 360 UnlockRTNotify();
549 senkov 120 return result.Produce();
550 schoenebeck 35 }
551    
552     /**
553 capela 527 * Will be called by the parser to get the amount of all available engines.
554 schoenebeck 35 */
555     String LSCPServer::GetAvailableEngines() {
556     dmsg(2,("LSCPServer: GetAvailableEngines()\n"));
557 capela 527 LSCPResultSet result("1");
558 senkov 120 return result.Produce();
559 schoenebeck 35 }
560    
561     /**
562 capela 527 * 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 schoenebeck 411 * Will be called by the parser to get descriptions for a particular
572     * sampler engine.
573 schoenebeck 35 */
574     String LSCPServer::GetEngineInfo(String EngineName) {
575     dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));
576 senkov 120 LSCPResultSet result;
577 schoenebeck 53 try {
578 schoenebeck 411 Engine* pEngine = EngineFactory::Create(EngineName);
579     result.Add("DESCRIPTION", pEngine->Description());
580     result.Add("VERSION", pEngine->Version());
581     delete pEngine;
582 schoenebeck 53 }
583     catch (LinuxSamplerException e) {
584 senkov 120 result.Error(e);
585 schoenebeck 53 }
586 senkov 120 return result.Produce();
587 schoenebeck 35 }
588    
589     /**
590     * Will be called by the parser to get informations about a particular
591     * sampler channel.
592     */
593 schoenebeck 53 String LSCPServer::GetChannelInfo(uint uiSamplerChannel) {
594     dmsg(2,("LSCPServer: GetChannelInfo(SamplerChannel=%d)\n", uiSamplerChannel));
595 senkov 120 LSCPResultSet result;
596 senkov 113 try {
597     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
598 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
599 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
600 schoenebeck 123
601 senkov 117 //Defaults values
602     String EngineName = "NONE";
603 schoenebeck 225 float Volume = 0.0f;
604 senkov 117 String InstrumentFileName = "NONE";
605 senkov 376 String InstrumentName = "NONE";
606 capela 133 int InstrumentIndex = -1;
607     int InstrumentStatus = -1;
608 schoenebeck 225 int AudioOutputChannels = 0;
609     String AudioRouting;
610 schoenebeck 123
611 schoenebeck 475 if (pEngineChannel) {
612     EngineName = pEngineChannel->EngineName();
613 schoenebeck 411 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 schoenebeck 225 if (AudioRouting != "") AudioRouting += ",";
623 schoenebeck 411 AudioRouting += ToString(pEngineChannel->OutputChannel(chan));
624 schoenebeck 225 }
625 senkov 113 }
626 senkov 117
627     result.Add("ENGINE_NAME", EngineName);
628     result.Add("VOLUME", Volume);
629    
630 capela 143 //Some not-so-hardcoded stuff to make GUI look good
631     result.Add("AUDIO_OUTPUT_DEVICE", GetAudioOutputDeviceIndex(pSamplerChannel->GetAudioOutputDevice()));
632 schoenebeck 225 result.Add("AUDIO_OUTPUT_CHANNELS", AudioOutputChannels);
633     result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);
634 senkov 113
635 capela 159 result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));
636     result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());
637 schoenebeck 274 if (pSamplerChannel->GetMidiInputChannel() == MidiInputPort::midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");
638     else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
639 capela 159
640 senkov 117 result.Add("INSTRUMENT_FILE", InstrumentFileName);
641     result.Add("INSTRUMENT_NR", InstrumentIndex);
642 senkov 376 result.Add("INSTRUMENT_NAME", InstrumentName);
643 capela 133 result.Add("INSTRUMENT_STATUS", InstrumentStatus);
644 senkov 113 }
645     catch (LinuxSamplerException e) {
646 senkov 120 result.Error(e);
647 senkov 113 }
648 senkov 120 return result.Produce();
649 schoenebeck 35 }
650    
651     /**
652     * Will be called by the parser to get the amount of active voices on a
653     * particular sampler channel.
654     */
655 schoenebeck 53 String LSCPServer::GetVoiceCount(uint uiSamplerChannel) {
656     dmsg(2,("LSCPServer: GetVoiceCount(SamplerChannel=%d)\n", uiSamplerChannel));
657 senkov 120 LSCPResultSet result;
658 schoenebeck 53 try {
659     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
660 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
661 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
662     if (!pEngineChannel) throw LinuxSamplerException("No engine loaded on sampler channel");
663 schoenebeck 620 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
664 schoenebeck 411 result.Add(pEngineChannel->GetEngine()->VoiceCount());
665 schoenebeck 53 }
666     catch (LinuxSamplerException e) {
667 senkov 120 result.Error(e);
668 schoenebeck 53 }
669 senkov 120 return result.Produce();
670 schoenebeck 35 }
671    
672     /**
673     * Will be called by the parser to get the amount of active disk streams on a
674     * particular sampler channel.
675     */
676 schoenebeck 53 String LSCPServer::GetStreamCount(uint uiSamplerChannel) {
677     dmsg(2,("LSCPServer: GetStreamCount(SamplerChannel=%d)\n", uiSamplerChannel));
678 senkov 120 LSCPResultSet result;
679 schoenebeck 53 try {
680     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
681 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
682 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
683     if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
684 schoenebeck 620 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
685 schoenebeck 411 result.Add(pEngineChannel->GetEngine()->DiskStreamCount());
686 schoenebeck 53 }
687     catch (LinuxSamplerException e) {
688 senkov 120 result.Error(e);
689 schoenebeck 53 }
690 senkov 120 return result.Produce();
691 schoenebeck 35 }
692    
693     /**
694     * Will be called by the parser to get the buffer fill states of all disk
695     * streams on a particular sampler channel.
696     */
697 schoenebeck 53 String LSCPServer::GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel) {
698     dmsg(2,("LSCPServer: GetBufferFill(ResponseType=%d, SamplerChannel=%d)\n", ResponseType, uiSamplerChannel));
699 senkov 120 LSCPResultSet result;
700 schoenebeck 53 try {
701     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
702 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
703 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
704     if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
705 schoenebeck 620 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
706 schoenebeck 411 if (!pEngineChannel->GetEngine()->DiskStreamSupported()) result.Add("NA");
707 senkov 129 else {
708     switch (ResponseType) {
709     case fill_response_bytes:
710 schoenebeck 411 result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillBytes());
711     break;
712 senkov 129 case fill_response_percentage:
713 schoenebeck 411 result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillPercentage());
714     break;
715 senkov 129 default:
716     throw LinuxSamplerException("Unknown fill response type");
717     }
718     }
719 schoenebeck 53 }
720     catch (LinuxSamplerException e) {
721 senkov 120 result.Error(e);
722 schoenebeck 53 }
723 senkov 120 return result.Produce();
724 schoenebeck 35 }
725    
726 schoenebeck 123 String LSCPServer::GetAvailableAudioOutputDrivers() {
727     dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));
728 senkov 120 LSCPResultSet result;
729 schoenebeck 53 try {
730 capela 527 int n = AudioOutputDeviceFactory::AvailableDrivers().size();
731     result.Add(n);
732     }
733     catch (LinuxSamplerException e) {
734     result.Error(e);
735     }
736     return result.Produce();
737     }
738    
739     String LSCPServer::ListAvailableAudioOutputDrivers() {
740     dmsg(2,("LSCPServer: ListAvailableAudioOutputDrivers()\n"));
741     LSCPResultSet result;
742     try {
743 schoenebeck 123 String s = AudioOutputDeviceFactory::AvailableDriversAsString();
744     result.Add(s);
745 schoenebeck 53 }
746     catch (LinuxSamplerException e) {
747 schoenebeck 123 result.Error(e);
748 schoenebeck 53 }
749 senkov 120 return result.Produce();
750 schoenebeck 35 }
751    
752 senkov 155 String LSCPServer::GetAvailableMidiInputDrivers() {
753     dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));
754     LSCPResultSet result;
755     try {
756 capela 527 int n = MidiInputDeviceFactory::AvailableDrivers().size();
757     result.Add(n);
758     }
759     catch (LinuxSamplerException e) {
760     result.Error(e);
761     }
762     return result.Produce();
763     }
764    
765     String LSCPServer::ListAvailableMidiInputDrivers() {
766     dmsg(2,("LSCPServer: ListAvailableMidiInputDrivers()\n"));
767     LSCPResultSet result;
768     try {
769 senkov 155 String s = MidiInputDeviceFactory::AvailableDriversAsString();
770     result.Add(s);
771     }
772     catch (LinuxSamplerException e) {
773     result.Error(e);
774     }
775     return result.Produce();
776     }
777    
778     String LSCPServer::GetMidiInputDriverInfo(String Driver) {
779     dmsg(2,("LSCPServer: GetMidiInputDriverInfo(Driver=%s)\n",Driver.c_str()));
780     LSCPResultSet result;
781     try {
782     result.Add("DESCRIPTION", MidiInputDeviceFactory::GetDriverDescription(Driver));
783     result.Add("VERSION", MidiInputDeviceFactory::GetDriverVersion(Driver));
784    
785     std::map<String,DeviceCreationParameter*> parameters = MidiInputDeviceFactory::GetAvailableDriverParameters(Driver);
786     if (parameters.size()) { // if there are parameters defined for this driver
787     String s;
788     std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
789     for (;iter != parameters.end(); iter++) {
790     if (s != "") s += ",";
791     s += iter->first;
792     }
793     result.Add("PARAMETERS", s);
794     }
795     }
796     catch (LinuxSamplerException e) {
797     result.Error(e);
798     }
799     return result.Produce();
800     }
801    
802 schoenebeck 123 String LSCPServer::GetAudioOutputDriverInfo(String Driver) {
803     dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));
804     LSCPResultSet result;
805     try {
806     result.Add("DESCRIPTION", AudioOutputDeviceFactory::GetDriverDescription(Driver));
807     result.Add("VERSION", AudioOutputDeviceFactory::GetDriverVersion(Driver));
808    
809     std::map<String,DeviceCreationParameter*> parameters = AudioOutputDeviceFactory::GetAvailableDriverParameters(Driver);
810     if (parameters.size()) { // if there are parameters defined for this driver
811     String s;
812     std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
813     for (;iter != parameters.end(); iter++) {
814     if (s != "") s += ",";
815     s += iter->first;
816     }
817     result.Add("PARAMETERS", s);
818     }
819     }
820     catch (LinuxSamplerException e) {
821     result.Error(e);
822     }
823     return result.Produce();
824     }
825    
826 senkov 155 String LSCPServer::GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
827 schoenebeck 226 dmsg(2,("LSCPServer: GetMidiInputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
828 senkov 155 LSCPResultSet result;
829     try {
830     DeviceCreationParameter* pParameter = MidiInputDeviceFactory::GetDriverParameter(Driver, Parameter);
831     result.Add("TYPE", pParameter->Type());
832     result.Add("DESCRIPTION", pParameter->Description());
833 schoenebeck 223 result.Add("MANDATORY", pParameter->Mandatory());
834     result.Add("FIX", pParameter->Fix());
835     result.Add("MULTIPLICITY", pParameter->Multiplicity());
836 schoenebeck 226 optional<String> oDepends = pParameter->Depends();
837     optional<String> oDefault = pParameter->Default(DependencyList);
838     optional<String> oRangeMin = pParameter->RangeMin(DependencyList);
839     optional<String> oRangeMax = pParameter->RangeMax(DependencyList);
840     optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
841     if (oDepends) result.Add("DEPENDS", *oDepends);
842     if (oDefault) result.Add("DEFAULT", *oDefault);
843     if (oRangeMin) result.Add("RANGE_MIN", *oRangeMin);
844     if (oRangeMax) result.Add("RANGE_MAX", *oRangeMax);
845     if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
846 senkov 155 }
847     catch (LinuxSamplerException e) {
848     result.Error(e);
849     }
850     return result.Produce();
851     }
852    
853 schoenebeck 123 String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
854 schoenebeck 226 dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
855 schoenebeck 123 LSCPResultSet result;
856     try {
857     DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);
858     result.Add("TYPE", pParameter->Type());
859     result.Add("DESCRIPTION", pParameter->Description());
860 schoenebeck 223 result.Add("MANDATORY", pParameter->Mandatory());
861     result.Add("FIX", pParameter->Fix());
862     result.Add("MULTIPLICITY", pParameter->Multiplicity());
863 schoenebeck 226 optional<String> oDepends = pParameter->Depends();
864     optional<String> oDefault = pParameter->Default(DependencyList);
865     optional<String> oRangeMin = pParameter->RangeMin(DependencyList);
866     optional<String> oRangeMax = pParameter->RangeMax(DependencyList);
867     optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
868     if (oDepends) result.Add("DEPENDS", *oDepends);
869     if (oDefault) result.Add("DEFAULT", *oDefault);
870     if (oRangeMin) result.Add("RANGE_MIN", *oRangeMin);
871     if (oRangeMax) result.Add("RANGE_MAX", *oRangeMax);
872     if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
873 schoenebeck 123 }
874     catch (LinuxSamplerException e) {
875     result.Error(e);
876     }
877     return result.Produce();
878     }
879    
880     String LSCPServer::GetAudioOutputDeviceCount() {
881     dmsg(2,("LSCPServer: GetAudioOutputDeviceCount()\n"));
882     LSCPResultSet result;
883     try {
884     uint count = pSampler->AudioOutputDevices();
885 senkov 138 result.Add(count); // success
886 schoenebeck 123 }
887     catch (LinuxSamplerException e) {
888     result.Error(e);
889     }
890     return result.Produce();
891     }
892    
893 senkov 155 String LSCPServer::GetMidiInputDeviceCount() {
894     dmsg(2,("LSCPServer: GetMidiInputDeviceCount()\n"));
895     LSCPResultSet result;
896     try {
897     uint count = pSampler->MidiInputDevices();
898     result.Add(count); // success
899     }
900     catch (LinuxSamplerException e) {
901     result.Error(e);
902     }
903     return result.Produce();
904     }
905    
906 schoenebeck 123 String LSCPServer::GetAudioOutputDevices() {
907     dmsg(2,("LSCPServer: GetAudioOutputDevices()\n"));
908     LSCPResultSet result;
909     try {
910     String s;
911     std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
912     std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
913     for (; iter != devices.end(); iter++) {
914     if (s != "") s += ",";
915     s += ToString(iter->first);
916     }
917     result.Add(s);
918     }
919     catch (LinuxSamplerException e) {
920     result.Error(e);
921     }
922     return result.Produce();
923     }
924    
925 senkov 155 String LSCPServer::GetMidiInputDevices() {
926     dmsg(2,("LSCPServer: GetMidiInputDevices()\n"));
927     LSCPResultSet result;
928     try {
929     String s;
930     std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
931     std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
932     for (; iter != devices.end(); iter++) {
933     if (s != "") s += ",";
934     s += ToString(iter->first);
935     }
936     result.Add(s);
937     }
938     catch (LinuxSamplerException e) {
939     result.Error(e);
940     }
941     return result.Produce();
942     }
943    
944 schoenebeck 123 String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {
945     dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
946     LSCPResultSet result;
947     try {
948     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
949 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
950 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceIndex];
951 schoenebeck 221 result.Add("DRIVER", pDevice->Driver());
952 schoenebeck 123 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
953     std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
954     for (; iter != parameters.end(); iter++) {
955     result.Add(iter->first, iter->second->Value());
956     }
957     }
958     catch (LinuxSamplerException e) {
959     result.Error(e);
960     }
961     return result.Produce();
962     }
963    
964 senkov 155 String LSCPServer::GetMidiInputDeviceInfo(uint DeviceIndex) {
965     dmsg(2,("LSCPServer: GetMidiInputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
966     LSCPResultSet result;
967     try {
968     std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
969 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
970 senkov 155 MidiInputDevice* pDevice = devices[DeviceIndex];
971 schoenebeck 221 result.Add("DRIVER", pDevice->Driver());
972 senkov 155 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
973     std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
974     for (; iter != parameters.end(); iter++) {
975     result.Add(iter->first, iter->second->Value());
976     }
977     }
978     catch (LinuxSamplerException e) {
979     result.Error(e);
980     }
981     return result.Produce();
982     }
983     String LSCPServer::GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex) {
984     dmsg(2,("LSCPServer: GetMidiInputPortInfo(DeviceIndex=%d, PortIndex=%d)\n",DeviceIndex, PortIndex));
985     LSCPResultSet result;
986     try {
987 schoenebeck 223 // get MIDI input device
988 senkov 155 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
989 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
990 senkov 155 MidiInputDevice* pDevice = devices[DeviceIndex];
991 schoenebeck 223
992     // get MIDI port
993 schoenebeck 221 MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
994     if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
995 schoenebeck 223
996     // return the values of all MIDI port parameters
997 schoenebeck 221 std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
998     std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
999 senkov 155 for (; iter != parameters.end(); iter++) {
1000     result.Add(iter->first, iter->second->Value());
1001     }
1002     }
1003     catch (LinuxSamplerException e) {
1004     result.Error(e);
1005     }
1006     return result.Produce();
1007     }
1008    
1009 schoenebeck 123 String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {
1010     dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));
1011     LSCPResultSet result;
1012     try {
1013     // get audio output device
1014     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1015 schoenebeck 223 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1016 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceId];
1017    
1018     // get audio channel
1019     AudioChannel* pChannel = pDevice->Channel(ChannelId);
1020 schoenebeck 374 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1021 schoenebeck 123
1022     // return the values of all audio channel parameters
1023     std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1024     std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
1025     for (; iter != parameters.end(); iter++) {
1026     result.Add(iter->first, iter->second->Value());
1027     }
1028     }
1029     catch (LinuxSamplerException e) {
1030     result.Error(e);
1031     }
1032     return result.Produce();
1033     }
1034    
1035 senkov 185 String LSCPServer::GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName) {
1036     dmsg(2,("LSCPServer: GetMidiInputPortParameterInfo(DeviceId=%d,PortId=%d,ParameterName=%s)\n",DeviceId,PortId,ParameterName.c_str()));
1037     LSCPResultSet result;
1038     try {
1039 schoenebeck 223 // get MIDI input device
1040     std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1041     if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no midi input device with index " + ToString(DeviceId) + ".");
1042     MidiInputDevice* pDevice = devices[DeviceId];
1043 senkov 185
1044 schoenebeck 221 // get midi port
1045     MidiInputPort* pPort = pDevice->GetPort(PortId);
1046     if (!pPort) throw LinuxSamplerException("Midi input device does not have port " + ToString(PortId) + ".");
1047 senkov 185
1048 schoenebeck 223 // get desired port parameter
1049     std::map<String,DeviceRuntimeParameter*> parameters = pPort->PortParameters();
1050     if (!parameters.count(ParameterName)) throw LinuxSamplerException("Midi port does not provide a parameter '" + ParameterName + "'.");
1051     DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1052 schoenebeck 203
1053 senkov 185 // return all fields of this audio channel parameter
1054     result.Add("TYPE", pParameter->Type());
1055     result.Add("DESCRIPTION", pParameter->Description());
1056     result.Add("FIX", pParameter->Fix());
1057     result.Add("MULTIPLICITY", pParameter->Multiplicity());
1058 schoenebeck 223 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
1059     if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
1060     if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1061 senkov 185 }
1062     catch (LinuxSamplerException e) {
1063     result.Error(e);
1064     }
1065     return result.Produce();
1066     }
1067    
1068 schoenebeck 123 String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {
1069     dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));
1070     LSCPResultSet result;
1071     try {
1072     // get audio output device
1073     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1074 schoenebeck 223 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1075 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceId];
1076    
1077     // get audio channel
1078     AudioChannel* pChannel = pDevice->Channel(ChannelId);
1079 schoenebeck 374 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1080 schoenebeck 123
1081     // get desired audio channel parameter
1082     std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1083 schoenebeck 223 if (!parameters.count(ParameterName)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");
1084 schoenebeck 123 DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1085    
1086     // return all fields of this audio channel parameter
1087     result.Add("TYPE", pParameter->Type());
1088     result.Add("DESCRIPTION", pParameter->Description());
1089     result.Add("FIX", pParameter->Fix());
1090     result.Add("MULTIPLICITY", pParameter->Multiplicity());
1091 schoenebeck 223 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
1092     if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
1093     if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1094 schoenebeck 123 }
1095     catch (LinuxSamplerException e) {
1096     result.Error(e);
1097     }
1098     return result.Produce();
1099     }
1100    
1101     String LSCPServer::SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal) {
1102     dmsg(2,("LSCPServer: SetAudioOutputChannelParameter(DeviceId=%d,ChannelId=%d,ParamKey=%s,ParamVal=%s)\n",DeviceId,ChannelId,ParamKey.c_str(),ParamVal.c_str()));
1103     LSCPResultSet result;
1104     try {
1105     // get audio output device
1106     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1107 schoenebeck 223 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1108 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceId];
1109    
1110     // get audio channel
1111     AudioChannel* pChannel = pDevice->Channel(ChannelId);
1112 schoenebeck 374 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1113 schoenebeck 123
1114     // get desired audio channel parameter
1115     std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1116 schoenebeck 223 if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");
1117 schoenebeck 123 DeviceRuntimeParameter* pParameter = parameters[ParamKey];
1118    
1119     // set new channel parameter value
1120     pParameter->SetValue(ParamVal);
1121     }
1122     catch (LinuxSamplerException e) {
1123     result.Error(e);
1124     }
1125     return result.Produce();
1126     }
1127    
1128     String LSCPServer::SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1129     dmsg(2,("LSCPServer: SetAudioOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1130     LSCPResultSet result;
1131     try {
1132     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1133 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
1134 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceIndex];
1135     std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1136 schoenebeck 223 if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1137 schoenebeck 123 parameters[ParamKey]->SetValue(ParamVal);
1138     }
1139     catch (LinuxSamplerException e) {
1140     result.Error(e);
1141     }
1142     return result.Produce();
1143     }
1144    
1145 senkov 155 String LSCPServer::SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1146     dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1147     LSCPResultSet result;
1148     try {
1149     std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1150 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1151 senkov 155 MidiInputDevice* pDevice = devices[DeviceIndex];
1152     std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1153 schoenebeck 223 if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1154 senkov 155 parameters[ParamKey]->SetValue(ParamVal);
1155     }
1156     catch (LinuxSamplerException e) {
1157     result.Error(e);
1158     }
1159     return result.Produce();
1160     }
1161    
1162     String LSCPServer::SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal) {
1163     dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1164     LSCPResultSet result;
1165     try {
1166 schoenebeck 223 // get MIDI input device
1167 senkov 155 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1168 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1169 senkov 155 MidiInputDevice* pDevice = devices[DeviceIndex];
1170 schoenebeck 223
1171     // get MIDI port
1172 schoenebeck 221 MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
1173     if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
1174 schoenebeck 223
1175     // set port parameter value
1176 schoenebeck 221 std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
1177 schoenebeck 223 if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(PortIndex) + " does not have a parameter '" + ParamKey + "'");
1178 senkov 155 parameters[ParamKey]->SetValue(ParamVal);
1179     }
1180     catch (LinuxSamplerException e) {
1181     result.Error(e);
1182     }
1183     return result.Produce();
1184     }
1185    
1186 schoenebeck 35 /**
1187     * Will be called by the parser to change the audio output channel for
1188     * playback on a particular sampler channel.
1189     */
1190 schoenebeck 123 String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {
1191     dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));
1192 schoenebeck 225 LSCPResultSet result;
1193     try {
1194     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1195 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1196 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1197     if (!pEngineChannel) throw LinuxSamplerException("No engine type yet assigned to sampler channel " + ToString(uiSamplerChannel));
1198 schoenebeck 374 if (!pSamplerChannel->GetAudioOutputDevice()) throw LinuxSamplerException("No audio output device connected to sampler channel " + ToString(uiSamplerChannel));
1199 schoenebeck 411 pEngineChannel->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel);
1200 schoenebeck 225 }
1201     catch (LinuxSamplerException e) {
1202     result.Error(e);
1203     }
1204     return result.Produce();
1205 schoenebeck 35 }
1206    
1207 capela 159 String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint uiSamplerChannel) {
1208     dmsg(2,("LSCPServer: SetAudiotOutputDevice(AudioDeviceId=%d, SamplerChannel=%d)\n",AudioDeviceId,uiSamplerChannel));
1209     LSCPResultSet result;
1210     try {
1211     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1212 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1213 capela 159 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1214 schoenebeck 223 if (!devices.count(AudioDeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId));
1215 capela 159 AudioOutputDevice* pDevice = devices[AudioDeviceId];
1216     pSamplerChannel->SetAudioOutputDevice(pDevice);
1217     }
1218     catch (LinuxSamplerException e) {
1219     result.Error(e);
1220     }
1221     return result.Produce();
1222     }
1223    
1224 capela 143 String LSCPServer::SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel) {
1225     dmsg(2,("LSCPServer: SetAudioOutputType(String AudioOutputDriver=%s, SamplerChannel=%d)\n",AudioOutputDriver.c_str(),uiSamplerChannel));
1226     LSCPResultSet result;
1227     try {
1228     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1229 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1230 capela 143 // Driver type name aliasing...
1231 schoenebeck 226 if (AudioOutputDriver == "Alsa") AudioOutputDriver = "ALSA";
1232     if (AudioOutputDriver == "Jack") AudioOutputDriver = "JACK";
1233 capela 143 // Check if there's one audio output device already created
1234     // for the intended audio driver type (AudioOutputDriver)...
1235     AudioOutputDevice *pDevice = NULL;
1236     std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1237     std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
1238     for (; iter != devices.end(); iter++) {
1239     if ((iter->second)->Driver() == AudioOutputDriver) {
1240     pDevice = iter->second;
1241     break;
1242     }
1243     }
1244     // If it doesn't exist, create a new one with default parameters...
1245     if (pDevice == NULL) {
1246     std::map<String,String> params;
1247     pDevice = pSampler->CreateAudioOutputDevice(AudioOutputDriver, params);
1248     }
1249     // Must have a device...
1250     if (pDevice == NULL)
1251     throw LinuxSamplerException("Internal error: could not create audio output device.");
1252     // Set it as the current channel device...
1253     pSamplerChannel->SetAudioOutputDevice(pDevice);
1254     }
1255     catch (LinuxSamplerException e) {
1256     result.Error(e);
1257     }
1258     return result.Produce();
1259     }
1260    
1261 capela 159 String LSCPServer::SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel) {
1262     dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIPort=%d, SamplerChannel=%d)\n",MIDIPort,uiSamplerChannel));
1263 senkov 120 LSCPResultSet result;
1264 schoenebeck 53 try {
1265     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1266 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1267 capela 159 pSamplerChannel->SetMidiInputPort(MIDIPort);
1268 schoenebeck 53 }
1269     catch (LinuxSamplerException e) {
1270 senkov 120 result.Error(e);
1271 schoenebeck 53 }
1272 senkov 120 return result.Produce();
1273 schoenebeck 53 }
1274    
1275 capela 159 String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {
1276     dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n",MIDIChannel,uiSamplerChannel));
1277 senkov 120 LSCPResultSet result;
1278 senkov 68 try {
1279     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1280 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1281 schoenebeck 221 pSamplerChannel->SetMidiInputChannel((MidiInputPort::midi_chan_t) MIDIChannel);
1282 senkov 68 }
1283     catch (LinuxSamplerException e) {
1284 senkov 120 result.Error(e);
1285 senkov 68 }
1286 senkov 120 return result.Produce();
1287 schoenebeck 35 }
1288    
1289 capela 159 String LSCPServer::SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel) {
1290     dmsg(2,("LSCPServer: SetMIDIInputDevice(MIDIDeviceId=%d, SamplerChannel=%d)\n",MIDIDeviceId,uiSamplerChannel));
1291 schoenebeck 123 LSCPResultSet result;
1292     try {
1293 capela 159 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1294 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1295 capela 159 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1296 schoenebeck 223 if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1297 capela 159 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1298     pSamplerChannel->SetMidiInputDevice(pDevice);
1299 schoenebeck 123 }
1300     catch (LinuxSamplerException e) {
1301     result.Error(e);
1302     }
1303     return result.Produce();
1304     }
1305    
1306 capela 159 String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {
1307     dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));
1308     LSCPResultSet result;
1309     try {
1310     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1311 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1312 capela 159 // Driver type name aliasing...
1313 schoenebeck 226 if (MidiInputDriver == "Alsa") MidiInputDriver = "ALSA";
1314 capela 159 // Check if there's one MIDI input device already created
1315     // for the intended MIDI driver type (MidiInputDriver)...
1316     MidiInputDevice *pDevice = NULL;
1317     std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1318     std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
1319     for (; iter != devices.end(); iter++) {
1320     if ((iter->second)->Driver() == MidiInputDriver) {
1321     pDevice = iter->second;
1322     break;
1323     }
1324     }
1325     // If it doesn't exist, create a new one with default parameters...
1326     if (pDevice == NULL) {
1327     std::map<String,String> params;
1328     pDevice = pSampler->CreateMidiInputDevice(MidiInputDriver, params);
1329     // Make it with at least one initial port.
1330     std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1331 schoenebeck 221 parameters["PORTS"]->SetValue("1");
1332 capela 159 }
1333     // Must have a device...
1334     if (pDevice == NULL)
1335     throw LinuxSamplerException("Internal error: could not create MIDI input device.");
1336     // Set it as the current channel device...
1337     pSamplerChannel->SetMidiInputDevice(pDevice);
1338     }
1339     catch (LinuxSamplerException e) {
1340     result.Error(e);
1341     }
1342     return result.Produce();
1343     }
1344    
1345 schoenebeck 35 /**
1346 capela 159 * Will be called by the parser to change the MIDI input device, port and channel on which
1347     * engine of a particular sampler channel should listen to.
1348     */
1349     String LSCPServer::SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel) {
1350     dmsg(2,("LSCPServer: SetMIDIInput(MIDIDeviceId=%d, MIDIPort=%d, MIDIChannel=%d, SamplerChannel=%d)\n", MIDIDeviceId, MIDIPort, MIDIChannel, uiSamplerChannel));
1351     LSCPResultSet result;
1352     try {
1353     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1354 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1355 capela 159 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1356 schoenebeck 223 if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1357 capela 159 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1358 schoenebeck 221 pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (MidiInputPort::midi_chan_t) MIDIChannel);
1359 capela 159 }
1360     catch (LinuxSamplerException e) {
1361     result.Error(e);
1362     }
1363     return result.Produce();
1364     }
1365    
1366     /**
1367 schoenebeck 35 * Will be called by the parser to change the global volume factor on a
1368     * particular sampler channel.
1369     */
1370 schoenebeck 225 String LSCPServer::SetVolume(double dVolume, uint uiSamplerChannel) {
1371     dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", dVolume, uiSamplerChannel));
1372 senkov 120 LSCPResultSet result;
1373 schoenebeck 53 try {
1374     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1375 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1376 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1377     if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1378     pEngineChannel->Volume(dVolume);
1379 schoenebeck 53 }
1380     catch (LinuxSamplerException e) {
1381 senkov 120 result.Error(e);
1382 schoenebeck 53 }
1383 senkov 120 return result.Produce();
1384 schoenebeck 35 }
1385    
1386     /**
1387     * Will be called by the parser to reset a particular sampler channel.
1388     */
1389 schoenebeck 53 String LSCPServer::ResetChannel(uint uiSamplerChannel) {
1390     dmsg(2,("LSCPServer: ResetChannel(SamplerChannel=%d)\n", uiSamplerChannel));
1391 senkov 120 LSCPResultSet result;
1392 schoenebeck 53 try {
1393     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1394 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1395 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1396     if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1397 schoenebeck 579 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
1398 schoenebeck 411 pEngineChannel->GetEngine()->Reset();
1399 schoenebeck 53 }
1400     catch (LinuxSamplerException e) {
1401 senkov 120 result.Error(e);
1402 schoenebeck 53 }
1403 senkov 120 return result.Produce();
1404 schoenebeck 35 }
1405    
1406     /**
1407 schoenebeck 212 * Will be called by the parser to reset the whole sampler.
1408     */
1409     String LSCPServer::ResetSampler() {
1410     dmsg(2,("LSCPServer: ResetSampler()\n"));
1411     pSampler->Reset();
1412     LSCPResultSet result;
1413     return result.Produce();
1414     }
1415    
1416     /**
1417 schoenebeck 563 * Will be called by the parser to return general informations about this
1418     * sampler.
1419     */
1420     String LSCPServer::GetServerInfo() {
1421     dmsg(2,("LSCPServer: GetServerInfo()\n"));
1422     LSCPResultSet result;
1423     result.Add("DESCRIPTION", "LinuxSampler - modular, streaming capable sampler");
1424 schoenebeck 570 result.Add("VERSION", VERSION);
1425     result.Add("PROTOCOL_VERSION", "1.0");
1426 schoenebeck 563 return result.Produce();
1427     }
1428    
1429     /**
1430 schoenebeck 35 * Will be called by the parser to subscribe a client (frontend) on the
1431     * server for receiving event messages.
1432     */
1433 senkov 170 String LSCPServer::SubscribeNotification(LSCPEvent::event_t type) {
1434     dmsg(2,("LSCPServer: SubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1435     LSCPResultSet result;
1436     SubscriptionMutex.Lock();
1437     eventSubscriptions[type].push_back(currentSocket);
1438     SubscriptionMutex.Unlock();
1439     return result.Produce();
1440 schoenebeck 35 }
1441    
1442     /**
1443     * Will be called by the parser to unsubscribe a client on the server
1444     * for not receiving further event messages.
1445     */
1446 senkov 170 String LSCPServer::UnsubscribeNotification(LSCPEvent::event_t type) {
1447     dmsg(2,("LSCPServer: UnsubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1448     LSCPResultSet result;
1449     SubscriptionMutex.Lock();
1450     eventSubscriptions[type].remove(currentSocket);
1451     SubscriptionMutex.Unlock();
1452     return result.Produce();
1453 schoenebeck 35 }
1454 capela 133
1455 senkov 397 static int select_callback(void * lscpResultSet, int argc,
1456     char **argv, char **azColName)
1457     {
1458     LSCPResultSet* resultSet = (LSCPResultSet*) lscpResultSet;
1459     resultSet->Add(argc, argv);
1460     return 0;
1461     }
1462    
1463     String LSCPServer::QueryDatabase(String query) {
1464     LSCPResultSet result;
1465 schoenebeck 401 #if HAVE_SQLITE3
1466 senkov 397 char* zErrMsg = NULL;
1467     sqlite3 *db;
1468     String selectStr = "SELECT " + query;
1469    
1470     int rc = sqlite3_open("linuxsampler.db", &db);
1471     if (rc == SQLITE_OK)
1472     {
1473     rc = sqlite3_exec(db, selectStr.c_str(), select_callback, &result, &zErrMsg);
1474     }
1475     if ( rc != SQLITE_OK )
1476     {
1477 senkov 398 result.Error(String(zErrMsg), rc);
1478 senkov 397 }
1479     sqlite3_close(db);
1480     #else
1481     result.Error(String("SQLITE3 was not installed when linuxsampler was built. SELECT statement is not available."), 0);
1482     #endif
1483     return result.Produce();
1484     }
1485    
1486 schoenebeck 210 /**
1487     * Will be called by the parser to enable or disable echo mode; if echo
1488     * mode is enabled, all commands from the client will (immediately) be
1489     * echoed back to the client.
1490     */
1491     String LSCPServer::SetEcho(yyparse_param_t* pSession, double boolean_value) {
1492     dmsg(2,("LSCPServer: SetEcho(val=%f)\n", boolean_value));
1493     LSCPResultSet result;
1494     try {
1495     if (boolean_value == 0) pSession->bVerbose = false;
1496     else if (boolean_value == 1) pSession->bVerbose = true;
1497     else throw LinuxSamplerException("Not a boolean value, must either be 0 or 1");
1498     }
1499     catch (LinuxSamplerException e) {
1500     result.Error(e);
1501     }
1502     return result.Produce();
1503     }

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