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

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Revision 660 - (hide annotations) (download)
Fri Jun 17 19:49:30 2005 UTC (18 years, 9 months ago) by schoenebeck
File size: 64839 byte(s)
* LSCP server: fixed LSCP event "CHANNEL_INFO" notification
  (e.g. did not notify on volume changes)

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 660 #include "../engines/EngineChannelFactory.h"
37 schoenebeck 203 #include "../drivers/audio/AudioOutputDeviceFactory.h"
38     #include "../drivers/midi/MidiInputDeviceFactory.h"
39 schoenebeck 53
40 senkov 170 /**
41     * Below are a few static members of the LSCPServer class.
42     * The big assumption here is that LSCPServer is going to remain a singleton.
43     * These members are used to support client connections.
44     * Class handles multiple connections at the same time using select() and non-blocking recv()
45     * Commands are processed by a single LSCPServer thread.
46     * Notifications are delivered either by the thread that originated them
47     * or (if the resultset is currently in progress) by the LSCPServer thread
48     * after the resultset was sent out.
49     * This makes sure that resultsets can not be interrupted by notifications.
50     * This also makes sure that the thread sending notification is not blocked
51     * by the LSCPServer thread.
52     */
53     fd_set LSCPServer::fdSet;
54     int LSCPServer::currentSocket = -1;
55 schoenebeck 210 std::vector<yyparse_param_t> LSCPServer::Sessions = std::vector<yyparse_param_t>();
56 senkov 170 std::map<int,String> LSCPServer::bufferedNotifies = std::map<int,String>();
57     std::map<int,String> LSCPServer::bufferedCommands = std::map<int,String>();
58     std::map< LSCPEvent::event_t, std::list<int> > LSCPServer::eventSubscriptions = std::map< LSCPEvent::event_t, std::list<int> >();
59     Mutex LSCPServer::NotifyMutex = Mutex();
60     Mutex LSCPServer::NotifyBufferMutex = Mutex();
61     Mutex LSCPServer::SubscriptionMutex = Mutex();
62 senkov 360 Mutex LSCPServer::RTNotifyMutex = Mutex();
63 senkov 170
64 schoenebeck 392 LSCPServer::LSCPServer(Sampler* pSampler) : Thread(true, false, 0, -4) {
65 schoenebeck 53 this->pSampler = pSampler;
66 schoenebeck 556 LSCPEvent::RegisterEvent(LSCPEvent::event_channel_count, "CHANNEL_COUNT");
67 senkov 170 LSCPEvent::RegisterEvent(LSCPEvent::event_voice_count, "VOICE_COUNT");
68     LSCPEvent::RegisterEvent(LSCPEvent::event_stream_count, "STREAM_COUNT");
69     LSCPEvent::RegisterEvent(LSCPEvent::event_buffer_fill, "BUFFER_FILL");
70 schoenebeck 556 LSCPEvent::RegisterEvent(LSCPEvent::event_channel_info, "CHANNEL_INFO");
71 senkov 170 LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");
72 schoenebeck 475 hSocket = -1;
73 schoenebeck 35 }
74    
75 schoenebeck 475 LSCPServer::~LSCPServer() {
76     if (hSocket >= 0) close(hSocket);
77     }
78    
79 schoenebeck 211 /**
80     * Blocks the calling thread until the LSCP Server is initialized and
81     * accepting socket connections, if the server is already initialized then
82     * this method will return immediately.
83     * @param TimeoutSeconds - optional: max. wait time in seconds
84     * (default: 0s)
85     * @param TimeoutNanoSeconds - optional: max wait time in nano seconds
86     * (default: 0ns)
87     * @returns 0 on success, a value less than 0 if timeout exceeded
88     */
89     int LSCPServer::WaitUntilInitialized(long TimeoutSeconds, long TimeoutNanoSeconds) {
90     return Initialized.WaitAndUnlockIf(false, TimeoutSeconds, TimeoutNanoSeconds);
91     }
92    
93 schoenebeck 35 int LSCPServer::Main() {
94 schoenebeck 475 hSocket = socket(AF_INET, SOCK_STREAM, 0);
95 schoenebeck 35 if (hSocket < 0) {
96     std::cerr << "LSCPServer: Could not create server socket." << std::endl;
97 schoenebeck 53 //return -1;
98     exit(EXIT_FAILURE);
99 schoenebeck 35 }
100    
101     SocketAddress.sin_family = AF_INET;
102     SocketAddress.sin_port = htons(LSCP_PORT);
103     SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);
104    
105     if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
106 schoenebeck 227 std::cerr << "LSCPServer: Could not bind server socket, retrying for " << ToString(LSCP_SERVER_BIND_TIMEOUT) << " seconds...";
107     for (int trial = 0; true; trial++) { // retry for LSCP_SERVER_BIND_TIMEOUT seconds
108     if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
109     if (trial > LSCP_SERVER_BIND_TIMEOUT) {
110     std::cerr << "gave up!" << std::endl;
111     close(hSocket);
112     //return -1;
113     exit(EXIT_FAILURE);
114     }
115     else sleep(1); // sleep 1s
116     }
117     else break; // success
118     }
119 schoenebeck 35 }
120    
121     listen(hSocket, 1);
122 schoenebeck 211 Initialized.Set(true);
123 schoenebeck 35
124     // now wait for client connections and handle their requests
125     sockaddr_in client;
126     int length = sizeof(client);
127 senkov 170 FD_ZERO(&fdSet);
128     FD_SET(hSocket, &fdSet);
129     int maxSessions = hSocket;
130 schoenebeck 203
131 schoenebeck 35 while (true) {
132 senkov 170 fd_set selectSet = fdSet;
133 senkov 198 int retval = select(maxSessions+1, &selectSet, NULL, NULL, NULL);
134 senkov 170 if (retval == 0)
135 senkov 198 continue; //Nothing try again
136 senkov 170 if (retval == -1) {
137     std::cerr << "LSCPServer: Socket select error." << std::endl;
138     close(hSocket);
139     exit(EXIT_FAILURE);
140     }
141 schoenebeck 203
142 senkov 170 //Accept new connections now (if any)
143     if (FD_ISSET(hSocket, &selectSet)) {
144     int socket = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length);
145     if (socket < 0) {
146     std::cerr << "LSCPServer: Client connection failed." << std::endl;
147     exit(EXIT_FAILURE);
148     }
149 schoenebeck 35
150 senkov 170 if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
151     std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
152     exit(EXIT_FAILURE);
153     }
154 schoenebeck 35
155 schoenebeck 210 // Parser initialization
156     yyparse_param_t yyparse_param;
157     yyparse_param.pServer = this;
158     yyparse_param.hSession = socket;
159    
160     Sessions.push_back(yyparse_param);
161 senkov 170 FD_SET(socket, &fdSet);
162     if (socket > maxSessions)
163     maxSessions = socket;
164     dmsg(1,("LSCPServer: Client connection established on socket:%d.\n", socket));
165     LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection established on socket", socket));
166     continue; //Maybe this was the only selected socket, better select again
167     }
168 schoenebeck 35
169 senkov 170 //Something was selected and it was not the hSocket, so it must be some command(s) coming.
170 schoenebeck 210 for (std::vector<yyparse_param_t>::iterator iter = Sessions.begin(); iter != Sessions.end(); iter++) {
171     if (FD_ISSET((*iter).hSession, &selectSet)) { //Was it this socket?
172 senkov 170 if (GetLSCPCommand(iter)) { //Have we read the entire command?
173     dmsg(3,("LSCPServer: Got command on socket %d, calling parser.\n", currentSocket));
174 schoenebeck 219 int dummy; // just a temporary hack to fulfill the restart() function prototype
175     restart(NULL, dummy); // restart the 'scanner'
176 schoenebeck 210 currentSocket = (*iter).hSession; //a hack
177 schoenebeck 475 dmsg(2,("LSCPServer: [%s]\n",bufferedCommands[currentSocket].c_str()));
178 schoenebeck 210 if ((*iter).bVerbose) { // if echo mode enabled
179     AnswerClient(bufferedCommands[currentSocket]);
180     }
181     int result = yyparse(&(*iter));
182 senkov 170 currentSocket = -1; //continuation of a hack
183     dmsg(3,("LSCPServer: Done parsing on socket %d.\n", currentSocket));
184     if (result == LSCP_QUIT) { //Was it a quit command by any chance?
185     CloseConnection(iter);
186     }
187     }
188     //socket may have been closed, iter may be invalid, get out of the loop for now.
189     //we'll be back if there is data.
190 schoenebeck 203 break;
191 senkov 170 }
192     }
193    
194 schoenebeck 660 // check if some engine channel's parameter / status changed, if so notify the respective LSCP event subscribers
195     {
196     std::set<EngineChannel*> engineChannels = EngineChannelFactory::EngineChannelInstances();
197     std::set<EngineChannel*>::iterator itEngineChannel = engineChannels.begin();
198     std::set<EngineChannel*>::iterator itEnd = engineChannels.end();
199     for (; itEngineChannel != itEnd; ++itEngineChannel) {
200     if ((*itEngineChannel)->StatusChanged()) {
201     SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_info, (*itEngineChannel)->iSamplerChannelIndex));
202     }
203     }
204     }
205    
206 senkov 170 //Now let's deliver late notifies (if any)
207     NotifyBufferMutex.Lock();
208     for (std::map<int,String>::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) {
209     send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), 0);
210     bufferedNotifies.erase(iterNotify);
211     }
212     NotifyBufferMutex.Unlock();
213 schoenebeck 35 }
214     }
215    
216 schoenebeck 210 void LSCPServer::CloseConnection( std::vector<yyparse_param_t>::iterator iter ) {
217     int socket = (*iter).hSession;
218 senkov 170 dmsg(1,("LSCPServer: Client connection terminated on socket:%d.\n",socket));
219     LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection terminated on socket", socket));
220 schoenebeck 210 Sessions.erase(iter);
221 senkov 170 FD_CLR(socket, &fdSet);
222     SubscriptionMutex.Lock(); //Must unsubscribe this socket from all events (if any)
223     for (std::map< LSCPEvent::event_t, std::list<int> >::iterator iter = eventSubscriptions.begin(); iter != eventSubscriptions.end(); iter++) {
224     iter->second.remove(socket);
225     }
226     SubscriptionMutex.Unlock();
227     NotifyMutex.Lock();
228     bufferedCommands.erase(socket);
229     bufferedNotifies.erase(socket);
230     close(socket);
231     NotifyMutex.Unlock();
232     }
233    
234 senkov 360 int LSCPServer::EventSubscribers( std::list<LSCPEvent::event_t> events ) {
235     int subs = 0;
236     SubscriptionMutex.Lock();
237     for( std::list<LSCPEvent::event_t>::iterator iter = events.begin();
238     iter != events.end(); iter++)
239     {
240     subs += eventSubscriptions.count(*iter);
241     }
242     SubscriptionMutex.Unlock();
243     return subs;
244     }
245    
246 senkov 170 void LSCPServer::SendLSCPNotify( LSCPEvent event ) {
247     SubscriptionMutex.Lock();
248     if (eventSubscriptions.count(event.GetType()) == 0) {
249     SubscriptionMutex.Unlock(); //Nobody is subscribed to this event
250     return;
251     }
252     std::list<int>::iterator iter = eventSubscriptions[event.GetType()].begin();
253     std::list<int>::iterator end = eventSubscriptions[event.GetType()].end();
254     String notify = event.Produce();
255    
256     while (true) {
257     if (NotifyMutex.Trylock()) {
258     for(;iter != end; iter++)
259     send(*iter, notify.c_str(), notify.size(), 0);
260     NotifyMutex.Unlock();
261     break;
262     } else {
263     if (NotifyBufferMutex.Trylock()) {
264     for(;iter != end; iter++)
265     bufferedNotifies[*iter] += notify;
266     NotifyBufferMutex.Unlock();
267     break;
268     }
269     }
270     }
271     SubscriptionMutex.Unlock();
272     }
273    
274     extern int GetLSCPCommand( void *buf, int max_size ) {
275     String command = LSCPServer::bufferedCommands[LSCPServer::currentSocket];
276     if (command.size() == 0) { //Parser wants input but we have nothing.
277     strcpy((char*) buf, "\n"); //So give it an empty command
278     return 1; //to keep it happy.
279     }
280    
281     if (max_size < command.size()) {
282     std::cerr << "getLSCPCommand: Flex buffer too small, ignoring the command." << std::endl;
283     return 0; //This will never happen
284     }
285    
286     strcpy((char*) buf, command.c_str());
287     LSCPServer::bufferedCommands.erase(LSCPServer::currentSocket);
288     return command.size();
289     }
290    
291 schoenebeck 35 /**
292 senkov 170 * Will be called to try to read the command from the socket
293     * If command is read, it will return true. Otherwise false is returned.
294     * In any case the received portion (complete or incomplete) is saved into bufferedCommand map.
295     */
296 schoenebeck 210 bool LSCPServer::GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter ) {
297     int socket = (*iter).hSession;
298 senkov 170 char c;
299     int i = 0;
300     while (true) {
301     int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now
302     if (result == 0) { //socket was selected, so 0 here means client has closed the connection
303     CloseConnection(iter);
304     break;
305     }
306     if (result == 1) {
307 schoenebeck 203 if (c == '\r')
308 senkov 170 continue; //Ignore CR
309     if (c == '\n') {
310 senkov 184 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Received \'" + bufferedCommands[socket] + "\' on socket", socket));
311 senkov 170 bufferedCommands[socket] += "\n";
312     return true; //Complete command was read
313     }
314     bufferedCommands[socket] += c;
315     }
316     if (result == -1) {
317     if (errno == EAGAIN) //Would block, try again later.
318     return false;
319     switch(errno) {
320     case EBADF:
321     dmsg(2,("LSCPScanner: The argument s is an invalid descriptor.\n"));
322     break;
323     case ECONNREFUSED:
324     dmsg(2,("LSCPScanner: A remote host refused to allow the network connection (typically because it is not running the requested service).\n"));
325     break;
326     case ENOTCONN:
327     dmsg(2,("LSCPScanner: The socket is associated with a connection-oriented protocol and has not been connected (see connect(2) and accept(2)).\n"));
328     break;
329     case ENOTSOCK:
330     dmsg(2,("LSCPScanner: The argument s does not refer to a socket.\n"));
331     break;
332     case EAGAIN:
333     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"));
334 schoenebeck 203 break;
335     case EINTR:
336 senkov 170 dmsg(2,("LSCPScanner: The receive was interrupted by delivery of a signal before any data were available.\n"));
337 schoenebeck 203 break;
338     case EFAULT:
339     dmsg(2,("LSCPScanner: The receive buffer pointer(s) point outside the process's address space.\n"));
340     break;
341     case EINVAL:
342     dmsg(2,("LSCPScanner: Invalid argument passed.\n"));
343     break;
344     case ENOMEM:
345     dmsg(2,("LSCPScanner: Could not allocate memory for recvmsg.\n"));
346     break;
347     default:
348     dmsg(2,("LSCPScanner: Unknown recv() error.\n"));
349     break;
350     }
351 senkov 170 CloseConnection(iter);
352     break;
353     }
354     }
355     return false;
356     }
357    
358     /**
359 schoenebeck 35 * Will be called by the parser whenever it wants to send an answer to the
360     * client / frontend.
361     *
362     * @param ReturnMessage - message that will be send to the client
363     */
364     void LSCPServer::AnswerClient(String ReturnMessage) {
365     dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));
366 senkov 170 if (currentSocket != -1) {
367     NotifyMutex.Lock();
368     send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);
369     NotifyMutex.Unlock();
370     }
371 schoenebeck 35 }
372    
373 capela 143 /**
374     * Find a created audio output device index.
375     */
376     int LSCPServer::GetAudioOutputDeviceIndex ( AudioOutputDevice *pDevice )
377     {
378     // Search for the created device to get its index
379     std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
380     std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
381     for (; iter != devices.end(); iter++) {
382     if (iter->second == pDevice)
383     return iter->first;
384     }
385     // Not found.
386     return -1;
387     }
388    
389 senkov 155 /**
390     * Find a created midi input device index.
391     */
392     int LSCPServer::GetMidiInputDeviceIndex ( MidiInputDevice *pDevice )
393     {
394     // Search for the created device to get its index
395     std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
396     std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
397     for (; iter != devices.end(); iter++) {
398     if (iter->second == pDevice)
399     return iter->first;
400     }
401     // Not found.
402     return -1;
403     }
404    
405 schoenebeck 123 String LSCPServer::CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters) {
406     dmsg(2,("LSCPServer: CreateAudioOutputDevice(Driver=%s)\n", Driver.c_str()));
407     LSCPResultSet result;
408     try {
409     AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters);
410     // search for the created device to get its index
411 capela 143 int index = GetAudioOutputDeviceIndex(pDevice);
412 schoenebeck 123 if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device.");
413     result = index; // success
414     }
415     catch (LinuxSamplerException e) {
416     result.Error(e);
417     }
418     return result.Produce();
419     }
420    
421 senkov 155 String LSCPServer::CreateMidiInputDevice(String Driver, std::map<String,String> Parameters) {
422     dmsg(2,("LSCPServer: CreateMidiInputDevice(Driver=%s)\n", Driver.c_str()));
423     LSCPResultSet result;
424     try {
425     MidiInputDevice* pDevice = pSampler->CreateMidiInputDevice(Driver, Parameters);
426     // search for the created device to get its index
427     int index = GetMidiInputDeviceIndex(pDevice);
428     if (index == -1) throw LinuxSamplerException("Internal error: could not find created midi input device.");
429     result = index; // success
430     }
431     catch (LinuxSamplerException e) {
432     result.Error(e);
433     }
434     return result.Produce();
435     }
436    
437 schoenebeck 123 String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) {
438     dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex));
439     LSCPResultSet result;
440     try {
441     std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
442 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
443 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceIndex];
444     pSampler->DestroyAudioOutputDevice(pDevice);
445     }
446     catch (LinuxSamplerException e) {
447     result.Error(e);
448     }
449     return result.Produce();
450     }
451    
452 senkov 155 String LSCPServer::DestroyMidiInputDevice(uint DeviceIndex) {
453     dmsg(2,("LSCPServer: DestroyMidiInputDevice(DeviceIndex=%d)\n", DeviceIndex));
454     LSCPResultSet result;
455     try {
456     std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
457 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
458 senkov 155 MidiInputDevice* pDevice = devices[DeviceIndex];
459     pSampler->DestroyMidiInputDevice(pDevice);
460     }
461     catch (LinuxSamplerException e) {
462     result.Error(e);
463     }
464     return result.Produce();
465     }
466    
467 schoenebeck 35 /**
468     * Will be called by the parser to load an instrument.
469     */
470 capela 137 String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground) {
471 schoenebeck 53 dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));
472 senkov 120 LSCPResultSet result;
473 schoenebeck 53 try {
474     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
475 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
476 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
477     if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel yet");
478 schoenebeck 223 if (!pSamplerChannel->GetAudioOutputDevice())
479 schoenebeck 374 throw LinuxSamplerException("No audio output device connected to sampler channel");
480 capela 137 if (bBackground) {
481 schoenebeck 411 InstrumentLoader.StartNewLoad(Filename, uiInstrument, pEngineChannel);
482 capela 137 }
483 schoenebeck 392 else {
484 schoenebeck 411 // tell the engine channel which instrument to load
485     pEngineChannel->PrepareLoadInstrument(Filename.c_str(), uiInstrument);
486 schoenebeck 392 // actually start to load the instrument (blocks until completed)
487 schoenebeck 411 pEngineChannel->LoadInstrument();
488 schoenebeck 392 }
489 schoenebeck 53 }
490     catch (LinuxSamplerException e) {
491 senkov 120 result.Error(e);
492 schoenebeck 53 }
493 senkov 120 return result.Produce();
494 schoenebeck 35 }
495    
496     /**
497 schoenebeck 411 * Will be called by the parser to assign a sampler engine type to a
498     * sampler channel.
499 schoenebeck 35 */
500 schoenebeck 411 String LSCPServer::SetEngineType(String EngineName, uint uiSamplerChannel) {
501 schoenebeck 53 dmsg(2,("LSCPServer: LoadEngine(EngineName=%s,SamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel));
502 senkov 120 LSCPResultSet result;
503 schoenebeck 475 try {
504 schoenebeck 53 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
505 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
506 senkov 360 LockRTNotify();
507 schoenebeck 411 pSamplerChannel->SetEngineType(EngineName);
508 senkov 360 UnlockRTNotify();
509 schoenebeck 53 }
510     catch (LinuxSamplerException e) {
511 senkov 120 result.Error(e);
512 schoenebeck 53 }
513 senkov 120 return result.Produce();
514 schoenebeck 35 }
515    
516     /**
517     * Will be called by the parser to get the amount of sampler channels.
518     */
519     String LSCPServer::GetChannels() {
520     dmsg(2,("LSCPServer: GetChannels()\n"));
521 senkov 120 LSCPResultSet result;
522     result.Add(pSampler->SamplerChannels());
523     return result.Produce();
524 schoenebeck 35 }
525    
526     /**
527 schoenebeck 209 * Will be called by the parser to get the list of sampler channels.
528     */
529     String LSCPServer::ListChannels() {
530     dmsg(2,("LSCPServer: ListChannels()\n"));
531     String list;
532     std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
533     std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
534     for (; iter != channels.end(); iter++) {
535     if (list != "") list += ",";
536     list += ToString(iter->first);
537     }
538     LSCPResultSet result;
539     result.Add(list);
540     return result.Produce();
541     }
542    
543     /**
544 schoenebeck 35 * Will be called by the parser to add a sampler channel.
545     */
546     String LSCPServer::AddChannel() {
547     dmsg(2,("LSCPServer: AddChannel()\n"));
548 schoenebeck 53 SamplerChannel* pSamplerChannel = pSampler->AddSamplerChannel();
549 senkov 120 LSCPResultSet result(pSamplerChannel->Index());
550     return result.Produce();
551 schoenebeck 35 }
552    
553     /**
554     * Will be called by the parser to remove a sampler channel.
555     */
556 schoenebeck 53 String LSCPServer::RemoveChannel(uint uiSamplerChannel) {
557     dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));
558 senkov 120 LSCPResultSet result;
559 senkov 360 LockRTNotify();
560 schoenebeck 53 pSampler->RemoveSamplerChannel(uiSamplerChannel);
561 senkov 360 UnlockRTNotify();
562 senkov 120 return result.Produce();
563 schoenebeck 35 }
564    
565     /**
566 capela 527 * Will be called by the parser to get the amount of all available engines.
567 schoenebeck 35 */
568     String LSCPServer::GetAvailableEngines() {
569     dmsg(2,("LSCPServer: GetAvailableEngines()\n"));
570 capela 527 LSCPResultSet result("1");
571 senkov 120 return result.Produce();
572 schoenebeck 35 }
573    
574     /**
575 capela 527 * Will be called by the parser to get a list of all available engines.
576     */
577     String LSCPServer::ListAvailableEngines() {
578     dmsg(2,("LSCPServer: ListAvailableEngines()\n"));
579     LSCPResultSet result("\'GIG\'");
580     return result.Produce();
581     }
582    
583     /**
584 schoenebeck 411 * Will be called by the parser to get descriptions for a particular
585     * sampler engine.
586 schoenebeck 35 */
587     String LSCPServer::GetEngineInfo(String EngineName) {
588     dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));
589 senkov 120 LSCPResultSet result;
590 schoenebeck 53 try {
591 schoenebeck 411 Engine* pEngine = EngineFactory::Create(EngineName);
592     result.Add("DESCRIPTION", pEngine->Description());
593     result.Add("VERSION", pEngine->Version());
594 schoenebeck 660 EngineFactory::Destroy(pEngine);
595 schoenebeck 53 }
596     catch (LinuxSamplerException e) {
597 senkov 120 result.Error(e);
598 schoenebeck 53 }
599 senkov 120 return result.Produce();
600 schoenebeck 35 }
601    
602     /**
603     * Will be called by the parser to get informations about a particular
604     * sampler channel.
605     */
606 schoenebeck 53 String LSCPServer::GetChannelInfo(uint uiSamplerChannel) {
607     dmsg(2,("LSCPServer: GetChannelInfo(SamplerChannel=%d)\n", uiSamplerChannel));
608 senkov 120 LSCPResultSet result;
609 senkov 113 try {
610     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
611 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
612 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
613 schoenebeck 123
614 senkov 117 //Defaults values
615     String EngineName = "NONE";
616 schoenebeck 225 float Volume = 0.0f;
617 senkov 117 String InstrumentFileName = "NONE";
618 senkov 376 String InstrumentName = "NONE";
619 capela 133 int InstrumentIndex = -1;
620     int InstrumentStatus = -1;
621 schoenebeck 225 int AudioOutputChannels = 0;
622     String AudioRouting;
623 schoenebeck 123
624 schoenebeck 475 if (pEngineChannel) {
625     EngineName = pEngineChannel->EngineName();
626 schoenebeck 411 AudioOutputChannels = pEngineChannel->Channels();
627     Volume = pEngineChannel->Volume();
628     InstrumentStatus = pEngineChannel->InstrumentStatus();
629     InstrumentIndex = pEngineChannel->InstrumentIndex();
630     if (InstrumentIndex != -1) {
631     InstrumentFileName = pEngineChannel->InstrumentFileName();
632     InstrumentName = pEngineChannel->InstrumentName();
633     }
634     for (int chan = 0; chan < pEngineChannel->Channels(); chan++) {
635 schoenebeck 225 if (AudioRouting != "") AudioRouting += ",";
636 schoenebeck 411 AudioRouting += ToString(pEngineChannel->OutputChannel(chan));
637 schoenebeck 225 }
638 senkov 113 }
639 senkov 117
640     result.Add("ENGINE_NAME", EngineName);
641     result.Add("VOLUME", Volume);
642    
643 capela 143 //Some not-so-hardcoded stuff to make GUI look good
644     result.Add("AUDIO_OUTPUT_DEVICE", GetAudioOutputDeviceIndex(pSamplerChannel->GetAudioOutputDevice()));
645 schoenebeck 225 result.Add("AUDIO_OUTPUT_CHANNELS", AudioOutputChannels);
646     result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);
647 senkov 113
648 capela 159 result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));
649     result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());
650 schoenebeck 274 if (pSamplerChannel->GetMidiInputChannel() == MidiInputPort::midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");
651     else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
652 capela 159
653 senkov 117 result.Add("INSTRUMENT_FILE", InstrumentFileName);
654     result.Add("INSTRUMENT_NR", InstrumentIndex);
655 senkov 376 result.Add("INSTRUMENT_NAME", InstrumentName);
656 capela 133 result.Add("INSTRUMENT_STATUS", InstrumentStatus);
657 senkov 113 }
658     catch (LinuxSamplerException e) {
659 senkov 120 result.Error(e);
660 senkov 113 }
661 senkov 120 return result.Produce();
662 schoenebeck 35 }
663    
664     /**
665     * Will be called by the parser to get the amount of active voices on a
666     * particular sampler channel.
667     */
668 schoenebeck 53 String LSCPServer::GetVoiceCount(uint uiSamplerChannel) {
669     dmsg(2,("LSCPServer: GetVoiceCount(SamplerChannel=%d)\n", uiSamplerChannel));
670 senkov 120 LSCPResultSet result;
671 schoenebeck 53 try {
672     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
673 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
674 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
675     if (!pEngineChannel) throw LinuxSamplerException("No engine loaded on sampler channel");
676 schoenebeck 620 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
677 schoenebeck 411 result.Add(pEngineChannel->GetEngine()->VoiceCount());
678 schoenebeck 53 }
679     catch (LinuxSamplerException e) {
680 senkov 120 result.Error(e);
681 schoenebeck 53 }
682 senkov 120 return result.Produce();
683 schoenebeck 35 }
684    
685     /**
686     * Will be called by the parser to get the amount of active disk streams on a
687     * particular sampler channel.
688     */
689 schoenebeck 53 String LSCPServer::GetStreamCount(uint uiSamplerChannel) {
690     dmsg(2,("LSCPServer: GetStreamCount(SamplerChannel=%d)\n", uiSamplerChannel));
691 senkov 120 LSCPResultSet result;
692 schoenebeck 53 try {
693     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
694 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
695 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
696     if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
697 schoenebeck 620 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
698 schoenebeck 411 result.Add(pEngineChannel->GetEngine()->DiskStreamCount());
699 schoenebeck 53 }
700     catch (LinuxSamplerException e) {
701 senkov 120 result.Error(e);
702 schoenebeck 53 }
703 senkov 120 return result.Produce();
704 schoenebeck 35 }
705    
706     /**
707     * Will be called by the parser to get the buffer fill states of all disk
708     * streams on a particular sampler channel.
709     */
710 schoenebeck 53 String LSCPServer::GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel) {
711     dmsg(2,("LSCPServer: GetBufferFill(ResponseType=%d, SamplerChannel=%d)\n", ResponseType, uiSamplerChannel));
712 senkov 120 LSCPResultSet result;
713 schoenebeck 53 try {
714     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
715 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
716 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
717     if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
718 schoenebeck 620 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
719 schoenebeck 411 if (!pEngineChannel->GetEngine()->DiskStreamSupported()) result.Add("NA");
720 senkov 129 else {
721     switch (ResponseType) {
722     case fill_response_bytes:
723 schoenebeck 411 result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillBytes());
724     break;
725 senkov 129 case fill_response_percentage:
726 schoenebeck 411 result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillPercentage());
727     break;
728 senkov 129 default:
729     throw LinuxSamplerException("Unknown fill response type");
730     }
731     }
732 schoenebeck 53 }
733     catch (LinuxSamplerException e) {
734 senkov 120 result.Error(e);
735 schoenebeck 53 }
736 senkov 120 return result.Produce();
737 schoenebeck 35 }
738    
739 schoenebeck 123 String LSCPServer::GetAvailableAudioOutputDrivers() {
740     dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));
741 senkov 120 LSCPResultSet result;
742 schoenebeck 53 try {
743 capela 527 int n = AudioOutputDeviceFactory::AvailableDrivers().size();
744     result.Add(n);
745     }
746     catch (LinuxSamplerException e) {
747     result.Error(e);
748     }
749     return result.Produce();
750     }
751    
752     String LSCPServer::ListAvailableAudioOutputDrivers() {
753     dmsg(2,("LSCPServer: ListAvailableAudioOutputDrivers()\n"));
754     LSCPResultSet result;
755     try {
756 schoenebeck 123 String s = AudioOutputDeviceFactory::AvailableDriversAsString();
757     result.Add(s);
758 schoenebeck 53 }
759     catch (LinuxSamplerException e) {
760 schoenebeck 123 result.Error(e);
761 schoenebeck 53 }
762 senkov 120 return result.Produce();
763 schoenebeck 35 }
764    
765 senkov 155 String LSCPServer::GetAvailableMidiInputDrivers() {
766     dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));
767     LSCPResultSet result;
768     try {
769 capela 527 int n = MidiInputDeviceFactory::AvailableDrivers().size();
770     result.Add(n);
771     }
772     catch (LinuxSamplerException e) {
773     result.Error(e);
774     }
775     return result.Produce();
776     }
777    
778     String LSCPServer::ListAvailableMidiInputDrivers() {
779     dmsg(2,("LSCPServer: ListAvailableMidiInputDrivers()\n"));
780     LSCPResultSet result;
781     try {
782 senkov 155 String s = MidiInputDeviceFactory::AvailableDriversAsString();
783     result.Add(s);
784     }
785     catch (LinuxSamplerException e) {
786     result.Error(e);
787     }
788     return result.Produce();
789     }
790    
791     String LSCPServer::GetMidiInputDriverInfo(String Driver) {
792     dmsg(2,("LSCPServer: GetMidiInputDriverInfo(Driver=%s)\n",Driver.c_str()));
793     LSCPResultSet result;
794     try {
795     result.Add("DESCRIPTION", MidiInputDeviceFactory::GetDriverDescription(Driver));
796     result.Add("VERSION", MidiInputDeviceFactory::GetDriverVersion(Driver));
797    
798     std::map<String,DeviceCreationParameter*> parameters = MidiInputDeviceFactory::GetAvailableDriverParameters(Driver);
799     if (parameters.size()) { // if there are parameters defined for this driver
800     String s;
801     std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
802     for (;iter != parameters.end(); iter++) {
803     if (s != "") s += ",";
804     s += iter->first;
805     }
806     result.Add("PARAMETERS", s);
807     }
808     }
809     catch (LinuxSamplerException e) {
810     result.Error(e);
811     }
812     return result.Produce();
813     }
814    
815 schoenebeck 123 String LSCPServer::GetAudioOutputDriverInfo(String Driver) {
816     dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));
817     LSCPResultSet result;
818     try {
819     result.Add("DESCRIPTION", AudioOutputDeviceFactory::GetDriverDescription(Driver));
820     result.Add("VERSION", AudioOutputDeviceFactory::GetDriverVersion(Driver));
821    
822     std::map<String,DeviceCreationParameter*> parameters = AudioOutputDeviceFactory::GetAvailableDriverParameters(Driver);
823     if (parameters.size()) { // if there are parameters defined for this driver
824     String s;
825     std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
826     for (;iter != parameters.end(); iter++) {
827     if (s != "") s += ",";
828     s += iter->first;
829     }
830     result.Add("PARAMETERS", s);
831     }
832     }
833     catch (LinuxSamplerException e) {
834     result.Error(e);
835     }
836     return result.Produce();
837     }
838    
839 senkov 155 String LSCPServer::GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
840 schoenebeck 226 dmsg(2,("LSCPServer: GetMidiInputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
841 senkov 155 LSCPResultSet result;
842     try {
843     DeviceCreationParameter* pParameter = MidiInputDeviceFactory::GetDriverParameter(Driver, Parameter);
844     result.Add("TYPE", pParameter->Type());
845     result.Add("DESCRIPTION", pParameter->Description());
846 schoenebeck 223 result.Add("MANDATORY", pParameter->Mandatory());
847     result.Add("FIX", pParameter->Fix());
848     result.Add("MULTIPLICITY", pParameter->Multiplicity());
849 schoenebeck 226 optional<String> oDepends = pParameter->Depends();
850     optional<String> oDefault = pParameter->Default(DependencyList);
851     optional<String> oRangeMin = pParameter->RangeMin(DependencyList);
852     optional<String> oRangeMax = pParameter->RangeMax(DependencyList);
853     optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
854     if (oDepends) result.Add("DEPENDS", *oDepends);
855     if (oDefault) result.Add("DEFAULT", *oDefault);
856     if (oRangeMin) result.Add("RANGE_MIN", *oRangeMin);
857     if (oRangeMax) result.Add("RANGE_MAX", *oRangeMax);
858     if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
859 senkov 155 }
860     catch (LinuxSamplerException e) {
861     result.Error(e);
862     }
863     return result.Produce();
864     }
865    
866 schoenebeck 123 String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
867 schoenebeck 226 dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
868 schoenebeck 123 LSCPResultSet result;
869     try {
870     DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);
871     result.Add("TYPE", pParameter->Type());
872     result.Add("DESCRIPTION", pParameter->Description());
873 schoenebeck 223 result.Add("MANDATORY", pParameter->Mandatory());
874     result.Add("FIX", pParameter->Fix());
875     result.Add("MULTIPLICITY", pParameter->Multiplicity());
876 schoenebeck 226 optional<String> oDepends = pParameter->Depends();
877     optional<String> oDefault = pParameter->Default(DependencyList);
878     optional<String> oRangeMin = pParameter->RangeMin(DependencyList);
879     optional<String> oRangeMax = pParameter->RangeMax(DependencyList);
880     optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
881     if (oDepends) result.Add("DEPENDS", *oDepends);
882     if (oDefault) result.Add("DEFAULT", *oDefault);
883     if (oRangeMin) result.Add("RANGE_MIN", *oRangeMin);
884     if (oRangeMax) result.Add("RANGE_MAX", *oRangeMax);
885     if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
886 schoenebeck 123 }
887     catch (LinuxSamplerException e) {
888     result.Error(e);
889     }
890     return result.Produce();
891     }
892    
893     String LSCPServer::GetAudioOutputDeviceCount() {
894     dmsg(2,("LSCPServer: GetAudioOutputDeviceCount()\n"));
895     LSCPResultSet result;
896     try {
897     uint count = pSampler->AudioOutputDevices();
898 senkov 138 result.Add(count); // success
899 schoenebeck 123 }
900     catch (LinuxSamplerException e) {
901     result.Error(e);
902     }
903     return result.Produce();
904     }
905    
906 senkov 155 String LSCPServer::GetMidiInputDeviceCount() {
907     dmsg(2,("LSCPServer: GetMidiInputDeviceCount()\n"));
908     LSCPResultSet result;
909     try {
910     uint count = pSampler->MidiInputDevices();
911     result.Add(count); // success
912     }
913     catch (LinuxSamplerException e) {
914     result.Error(e);
915     }
916     return result.Produce();
917     }
918    
919 schoenebeck 123 String LSCPServer::GetAudioOutputDevices() {
920     dmsg(2,("LSCPServer: GetAudioOutputDevices()\n"));
921     LSCPResultSet result;
922     try {
923     String s;
924     std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
925     std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
926     for (; iter != devices.end(); iter++) {
927     if (s != "") s += ",";
928     s += ToString(iter->first);
929     }
930     result.Add(s);
931     }
932     catch (LinuxSamplerException e) {
933     result.Error(e);
934     }
935     return result.Produce();
936     }
937    
938 senkov 155 String LSCPServer::GetMidiInputDevices() {
939     dmsg(2,("LSCPServer: GetMidiInputDevices()\n"));
940     LSCPResultSet result;
941     try {
942     String s;
943     std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
944     std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
945     for (; iter != devices.end(); iter++) {
946     if (s != "") s += ",";
947     s += ToString(iter->first);
948     }
949     result.Add(s);
950     }
951     catch (LinuxSamplerException e) {
952     result.Error(e);
953     }
954     return result.Produce();
955     }
956    
957 schoenebeck 123 String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {
958     dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
959     LSCPResultSet result;
960     try {
961     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
962 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
963 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceIndex];
964 schoenebeck 221 result.Add("DRIVER", pDevice->Driver());
965 schoenebeck 123 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
966     std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
967     for (; iter != parameters.end(); iter++) {
968     result.Add(iter->first, iter->second->Value());
969     }
970     }
971     catch (LinuxSamplerException e) {
972     result.Error(e);
973     }
974     return result.Produce();
975     }
976    
977 senkov 155 String LSCPServer::GetMidiInputDeviceInfo(uint DeviceIndex) {
978     dmsg(2,("LSCPServer: GetMidiInputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
979     LSCPResultSet result;
980     try {
981     std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
982 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
983 senkov 155 MidiInputDevice* pDevice = devices[DeviceIndex];
984 schoenebeck 221 result.Add("DRIVER", pDevice->Driver());
985 senkov 155 std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
986     std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
987     for (; iter != parameters.end(); iter++) {
988     result.Add(iter->first, iter->second->Value());
989     }
990     }
991     catch (LinuxSamplerException e) {
992     result.Error(e);
993     }
994     return result.Produce();
995     }
996     String LSCPServer::GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex) {
997     dmsg(2,("LSCPServer: GetMidiInputPortInfo(DeviceIndex=%d, PortIndex=%d)\n",DeviceIndex, PortIndex));
998     LSCPResultSet result;
999     try {
1000 schoenebeck 223 // get MIDI input device
1001 senkov 155 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1002 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1003 senkov 155 MidiInputDevice* pDevice = devices[DeviceIndex];
1004 schoenebeck 223
1005     // get MIDI port
1006 schoenebeck 221 MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
1007     if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
1008 schoenebeck 223
1009     // return the values of all MIDI port parameters
1010 schoenebeck 221 std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
1011     std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
1012 senkov 155 for (; iter != parameters.end(); iter++) {
1013     result.Add(iter->first, iter->second->Value());
1014     }
1015     }
1016     catch (LinuxSamplerException e) {
1017     result.Error(e);
1018     }
1019     return result.Produce();
1020     }
1021    
1022 schoenebeck 123 String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {
1023     dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));
1024     LSCPResultSet result;
1025     try {
1026     // get audio output device
1027     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1028 schoenebeck 223 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1029 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceId];
1030    
1031     // get audio channel
1032     AudioChannel* pChannel = pDevice->Channel(ChannelId);
1033 schoenebeck 374 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1034 schoenebeck 123
1035     // return the values of all audio channel parameters
1036     std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1037     std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
1038     for (; iter != parameters.end(); iter++) {
1039     result.Add(iter->first, iter->second->Value());
1040     }
1041     }
1042     catch (LinuxSamplerException e) {
1043     result.Error(e);
1044     }
1045     return result.Produce();
1046     }
1047    
1048 senkov 185 String LSCPServer::GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName) {
1049     dmsg(2,("LSCPServer: GetMidiInputPortParameterInfo(DeviceId=%d,PortId=%d,ParameterName=%s)\n",DeviceId,PortId,ParameterName.c_str()));
1050     LSCPResultSet result;
1051     try {
1052 schoenebeck 223 // get MIDI input device
1053     std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1054     if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no midi input device with index " + ToString(DeviceId) + ".");
1055     MidiInputDevice* pDevice = devices[DeviceId];
1056 senkov 185
1057 schoenebeck 221 // get midi port
1058     MidiInputPort* pPort = pDevice->GetPort(PortId);
1059     if (!pPort) throw LinuxSamplerException("Midi input device does not have port " + ToString(PortId) + ".");
1060 senkov 185
1061 schoenebeck 223 // get desired port parameter
1062     std::map<String,DeviceRuntimeParameter*> parameters = pPort->PortParameters();
1063     if (!parameters.count(ParameterName)) throw LinuxSamplerException("Midi port does not provide a parameter '" + ParameterName + "'.");
1064     DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1065 schoenebeck 203
1066 senkov 185 // return all fields of this audio channel parameter
1067     result.Add("TYPE", pParameter->Type());
1068     result.Add("DESCRIPTION", pParameter->Description());
1069     result.Add("FIX", pParameter->Fix());
1070     result.Add("MULTIPLICITY", pParameter->Multiplicity());
1071 schoenebeck 223 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
1072     if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
1073     if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1074 senkov 185 }
1075     catch (LinuxSamplerException e) {
1076     result.Error(e);
1077     }
1078     return result.Produce();
1079     }
1080    
1081 schoenebeck 123 String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {
1082     dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));
1083     LSCPResultSet result;
1084     try {
1085     // get audio output device
1086     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1087 schoenebeck 223 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1088 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceId];
1089    
1090     // get audio channel
1091     AudioChannel* pChannel = pDevice->Channel(ChannelId);
1092 schoenebeck 374 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1093 schoenebeck 123
1094     // get desired audio channel parameter
1095     std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1096 schoenebeck 223 if (!parameters.count(ParameterName)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");
1097 schoenebeck 123 DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1098    
1099     // return all fields of this audio channel parameter
1100     result.Add("TYPE", pParameter->Type());
1101     result.Add("DESCRIPTION", pParameter->Description());
1102     result.Add("FIX", pParameter->Fix());
1103     result.Add("MULTIPLICITY", pParameter->Multiplicity());
1104 schoenebeck 223 if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin());
1105     if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax());
1106     if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1107 schoenebeck 123 }
1108     catch (LinuxSamplerException e) {
1109     result.Error(e);
1110     }
1111     return result.Produce();
1112     }
1113    
1114     String LSCPServer::SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal) {
1115     dmsg(2,("LSCPServer: SetAudioOutputChannelParameter(DeviceId=%d,ChannelId=%d,ParamKey=%s,ParamVal=%s)\n",DeviceId,ChannelId,ParamKey.c_str(),ParamVal.c_str()));
1116     LSCPResultSet result;
1117     try {
1118     // get audio output device
1119     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1120 schoenebeck 223 if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1121 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceId];
1122    
1123     // get audio channel
1124     AudioChannel* pChannel = pDevice->Channel(ChannelId);
1125 schoenebeck 374 if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1126 schoenebeck 123
1127     // get desired audio channel parameter
1128     std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1129 schoenebeck 223 if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");
1130 schoenebeck 123 DeviceRuntimeParameter* pParameter = parameters[ParamKey];
1131    
1132     // set new channel parameter value
1133     pParameter->SetValue(ParamVal);
1134     }
1135     catch (LinuxSamplerException e) {
1136     result.Error(e);
1137     }
1138     return result.Produce();
1139     }
1140    
1141     String LSCPServer::SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1142     dmsg(2,("LSCPServer: SetAudioOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1143     LSCPResultSet result;
1144     try {
1145     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1146 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
1147 schoenebeck 123 AudioOutputDevice* pDevice = devices[DeviceIndex];
1148     std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1149 schoenebeck 223 if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1150 schoenebeck 123 parameters[ParamKey]->SetValue(ParamVal);
1151     }
1152     catch (LinuxSamplerException e) {
1153     result.Error(e);
1154     }
1155     return result.Produce();
1156     }
1157    
1158 senkov 155 String LSCPServer::SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1159     dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1160     LSCPResultSet result;
1161     try {
1162     std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1163 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1164 senkov 155 MidiInputDevice* pDevice = devices[DeviceIndex];
1165     std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1166 schoenebeck 223 if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1167 senkov 155 parameters[ParamKey]->SetValue(ParamVal);
1168     }
1169     catch (LinuxSamplerException e) {
1170     result.Error(e);
1171     }
1172     return result.Produce();
1173     }
1174    
1175     String LSCPServer::SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal) {
1176     dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1177     LSCPResultSet result;
1178     try {
1179 schoenebeck 223 // get MIDI input device
1180 senkov 155 std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1181 schoenebeck 223 if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1182 senkov 155 MidiInputDevice* pDevice = devices[DeviceIndex];
1183 schoenebeck 223
1184     // get MIDI port
1185 schoenebeck 221 MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
1186     if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
1187 schoenebeck 223
1188     // set port parameter value
1189 schoenebeck 221 std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
1190 schoenebeck 223 if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(PortIndex) + " does not have a parameter '" + ParamKey + "'");
1191 senkov 155 parameters[ParamKey]->SetValue(ParamVal);
1192     }
1193     catch (LinuxSamplerException e) {
1194     result.Error(e);
1195     }
1196     return result.Produce();
1197     }
1198    
1199 schoenebeck 35 /**
1200     * Will be called by the parser to change the audio output channel for
1201     * playback on a particular sampler channel.
1202     */
1203 schoenebeck 123 String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {
1204     dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));
1205 schoenebeck 225 LSCPResultSet result;
1206     try {
1207     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1208 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1209 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1210     if (!pEngineChannel) throw LinuxSamplerException("No engine type yet assigned to sampler channel " + ToString(uiSamplerChannel));
1211 schoenebeck 374 if (!pSamplerChannel->GetAudioOutputDevice()) throw LinuxSamplerException("No audio output device connected to sampler channel " + ToString(uiSamplerChannel));
1212 schoenebeck 411 pEngineChannel->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel);
1213 schoenebeck 225 }
1214     catch (LinuxSamplerException e) {
1215     result.Error(e);
1216     }
1217     return result.Produce();
1218 schoenebeck 35 }
1219    
1220 capela 159 String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint uiSamplerChannel) {
1221     dmsg(2,("LSCPServer: SetAudiotOutputDevice(AudioDeviceId=%d, SamplerChannel=%d)\n",AudioDeviceId,uiSamplerChannel));
1222     LSCPResultSet result;
1223     try {
1224     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1225 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1226 capela 159 std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1227 schoenebeck 223 if (!devices.count(AudioDeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId));
1228 capela 159 AudioOutputDevice* pDevice = devices[AudioDeviceId];
1229     pSamplerChannel->SetAudioOutputDevice(pDevice);
1230     }
1231     catch (LinuxSamplerException e) {
1232     result.Error(e);
1233     }
1234     return result.Produce();
1235     }
1236    
1237 capela 143 String LSCPServer::SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel) {
1238     dmsg(2,("LSCPServer: SetAudioOutputType(String AudioOutputDriver=%s, SamplerChannel=%d)\n",AudioOutputDriver.c_str(),uiSamplerChannel));
1239     LSCPResultSet result;
1240     try {
1241     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1242 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1243 capela 143 // Driver type name aliasing...
1244 schoenebeck 226 if (AudioOutputDriver == "Alsa") AudioOutputDriver = "ALSA";
1245     if (AudioOutputDriver == "Jack") AudioOutputDriver = "JACK";
1246 capela 143 // Check if there's one audio output device already created
1247     // for the intended audio driver type (AudioOutputDriver)...
1248     AudioOutputDevice *pDevice = NULL;
1249     std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1250     std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
1251     for (; iter != devices.end(); iter++) {
1252     if ((iter->second)->Driver() == AudioOutputDriver) {
1253     pDevice = iter->second;
1254     break;
1255     }
1256     }
1257     // If it doesn't exist, create a new one with default parameters...
1258     if (pDevice == NULL) {
1259     std::map<String,String> params;
1260     pDevice = pSampler->CreateAudioOutputDevice(AudioOutputDriver, params);
1261     }
1262     // Must have a device...
1263     if (pDevice == NULL)
1264     throw LinuxSamplerException("Internal error: could not create audio output device.");
1265     // Set it as the current channel device...
1266     pSamplerChannel->SetAudioOutputDevice(pDevice);
1267     }
1268     catch (LinuxSamplerException e) {
1269     result.Error(e);
1270     }
1271     return result.Produce();
1272     }
1273    
1274 capela 159 String LSCPServer::SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel) {
1275     dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIPort=%d, SamplerChannel=%d)\n",MIDIPort,uiSamplerChannel));
1276 senkov 120 LSCPResultSet result;
1277 schoenebeck 53 try {
1278     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1279 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1280 capela 159 pSamplerChannel->SetMidiInputPort(MIDIPort);
1281 schoenebeck 53 }
1282     catch (LinuxSamplerException e) {
1283 senkov 120 result.Error(e);
1284 schoenebeck 53 }
1285 senkov 120 return result.Produce();
1286 schoenebeck 53 }
1287    
1288 capela 159 String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {
1289     dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n",MIDIChannel,uiSamplerChannel));
1290 senkov 120 LSCPResultSet result;
1291 senkov 68 try {
1292     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1293 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1294 schoenebeck 221 pSamplerChannel->SetMidiInputChannel((MidiInputPort::midi_chan_t) MIDIChannel);
1295 senkov 68 }
1296     catch (LinuxSamplerException e) {
1297 senkov 120 result.Error(e);
1298 senkov 68 }
1299 senkov 120 return result.Produce();
1300 schoenebeck 35 }
1301    
1302 capela 159 String LSCPServer::SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel) {
1303     dmsg(2,("LSCPServer: SetMIDIInputDevice(MIDIDeviceId=%d, SamplerChannel=%d)\n",MIDIDeviceId,uiSamplerChannel));
1304 schoenebeck 123 LSCPResultSet result;
1305     try {
1306 capela 159 SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1307 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1308 capela 159 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1309 schoenebeck 223 if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1310 capela 159 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1311     pSamplerChannel->SetMidiInputDevice(pDevice);
1312 schoenebeck 123 }
1313     catch (LinuxSamplerException e) {
1314     result.Error(e);
1315     }
1316     return result.Produce();
1317     }
1318    
1319 capela 159 String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {
1320     dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));
1321     LSCPResultSet result;
1322     try {
1323     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1324 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1325 capela 159 // Driver type name aliasing...
1326 schoenebeck 226 if (MidiInputDriver == "Alsa") MidiInputDriver = "ALSA";
1327 capela 159 // Check if there's one MIDI input device already created
1328     // for the intended MIDI driver type (MidiInputDriver)...
1329     MidiInputDevice *pDevice = NULL;
1330     std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1331     std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
1332     for (; iter != devices.end(); iter++) {
1333     if ((iter->second)->Driver() == MidiInputDriver) {
1334     pDevice = iter->second;
1335     break;
1336     }
1337     }
1338     // If it doesn't exist, create a new one with default parameters...
1339     if (pDevice == NULL) {
1340     std::map<String,String> params;
1341     pDevice = pSampler->CreateMidiInputDevice(MidiInputDriver, params);
1342     // Make it with at least one initial port.
1343     std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1344 schoenebeck 221 parameters["PORTS"]->SetValue("1");
1345 capela 159 }
1346     // Must have a device...
1347     if (pDevice == NULL)
1348     throw LinuxSamplerException("Internal error: could not create MIDI input device.");
1349     // Set it as the current channel device...
1350     pSamplerChannel->SetMidiInputDevice(pDevice);
1351     }
1352     catch (LinuxSamplerException e) {
1353     result.Error(e);
1354     }
1355     return result.Produce();
1356     }
1357    
1358 schoenebeck 35 /**
1359 capela 159 * Will be called by the parser to change the MIDI input device, port and channel on which
1360     * engine of a particular sampler channel should listen to.
1361     */
1362     String LSCPServer::SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel) {
1363     dmsg(2,("LSCPServer: SetMIDIInput(MIDIDeviceId=%d, MIDIPort=%d, MIDIChannel=%d, SamplerChannel=%d)\n", MIDIDeviceId, MIDIPort, MIDIChannel, uiSamplerChannel));
1364     LSCPResultSet result;
1365     try {
1366     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1367 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1368 capela 159 std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1369 schoenebeck 223 if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1370 capela 159 MidiInputDevice* pDevice = devices[MIDIDeviceId];
1371 schoenebeck 221 pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (MidiInputPort::midi_chan_t) MIDIChannel);
1372 capela 159 }
1373     catch (LinuxSamplerException e) {
1374     result.Error(e);
1375     }
1376     return result.Produce();
1377     }
1378    
1379     /**
1380 schoenebeck 35 * Will be called by the parser to change the global volume factor on a
1381     * particular sampler channel.
1382     */
1383 schoenebeck 225 String LSCPServer::SetVolume(double dVolume, uint uiSamplerChannel) {
1384     dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", dVolume, uiSamplerChannel));
1385 senkov 120 LSCPResultSet result;
1386 schoenebeck 53 try {
1387     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1388 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1389 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1390     if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1391     pEngineChannel->Volume(dVolume);
1392 schoenebeck 53 }
1393     catch (LinuxSamplerException e) {
1394 senkov 120 result.Error(e);
1395 schoenebeck 53 }
1396 senkov 120 return result.Produce();
1397 schoenebeck 35 }
1398    
1399     /**
1400     * Will be called by the parser to reset a particular sampler channel.
1401     */
1402 schoenebeck 53 String LSCPServer::ResetChannel(uint uiSamplerChannel) {
1403     dmsg(2,("LSCPServer: ResetChannel(SamplerChannel=%d)\n", uiSamplerChannel));
1404 senkov 120 LSCPResultSet result;
1405 schoenebeck 53 try {
1406     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1407 schoenebeck 374 if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1408 schoenebeck 411 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1409     if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1410 schoenebeck 579 if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
1411 schoenebeck 411 pEngineChannel->GetEngine()->Reset();
1412 schoenebeck 53 }
1413     catch (LinuxSamplerException e) {
1414 senkov 120 result.Error(e);
1415 schoenebeck 53 }
1416 senkov 120 return result.Produce();
1417 schoenebeck 35 }
1418    
1419     /**
1420 schoenebeck 212 * Will be called by the parser to reset the whole sampler.
1421     */
1422     String LSCPServer::ResetSampler() {
1423     dmsg(2,("LSCPServer: ResetSampler()\n"));
1424     pSampler->Reset();
1425     LSCPResultSet result;
1426     return result.Produce();
1427     }
1428    
1429     /**
1430 schoenebeck 563 * Will be called by the parser to return general informations about this
1431     * sampler.
1432     */
1433     String LSCPServer::GetServerInfo() {
1434     dmsg(2,("LSCPServer: GetServerInfo()\n"));
1435     LSCPResultSet result;
1436     result.Add("DESCRIPTION", "LinuxSampler - modular, streaming capable sampler");
1437 schoenebeck 570 result.Add("VERSION", VERSION);
1438     result.Add("PROTOCOL_VERSION", "1.0");
1439 schoenebeck 563 return result.Produce();
1440     }
1441    
1442     /**
1443 schoenebeck 35 * Will be called by the parser to subscribe a client (frontend) on the
1444     * server for receiving event messages.
1445     */
1446 senkov 170 String LSCPServer::SubscribeNotification(LSCPEvent::event_t type) {
1447     dmsg(2,("LSCPServer: SubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1448     LSCPResultSet result;
1449     SubscriptionMutex.Lock();
1450     eventSubscriptions[type].push_back(currentSocket);
1451     SubscriptionMutex.Unlock();
1452     return result.Produce();
1453 schoenebeck 35 }
1454    
1455     /**
1456     * Will be called by the parser to unsubscribe a client on the server
1457     * for not receiving further event messages.
1458     */
1459 senkov 170 String LSCPServer::UnsubscribeNotification(LSCPEvent::event_t type) {
1460     dmsg(2,("LSCPServer: UnsubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1461     LSCPResultSet result;
1462     SubscriptionMutex.Lock();
1463     eventSubscriptions[type].remove(currentSocket);
1464     SubscriptionMutex.Unlock();
1465     return result.Produce();
1466 schoenebeck 35 }
1467 capela 133
1468 senkov 397 static int select_callback(void * lscpResultSet, int argc,
1469     char **argv, char **azColName)
1470     {
1471     LSCPResultSet* resultSet = (LSCPResultSet*) lscpResultSet;
1472     resultSet->Add(argc, argv);
1473     return 0;
1474     }
1475    
1476     String LSCPServer::QueryDatabase(String query) {
1477     LSCPResultSet result;
1478 schoenebeck 401 #if HAVE_SQLITE3
1479 senkov 397 char* zErrMsg = NULL;
1480     sqlite3 *db;
1481     String selectStr = "SELECT " + query;
1482    
1483     int rc = sqlite3_open("linuxsampler.db", &db);
1484     if (rc == SQLITE_OK)
1485     {
1486     rc = sqlite3_exec(db, selectStr.c_str(), select_callback, &result, &zErrMsg);
1487     }
1488     if ( rc != SQLITE_OK )
1489     {
1490 senkov 398 result.Error(String(zErrMsg), rc);
1491 senkov 397 }
1492     sqlite3_close(db);
1493     #else
1494     result.Error(String("SQLITE3 was not installed when linuxsampler was built. SELECT statement is not available."), 0);
1495     #endif
1496     return result.Produce();
1497     }
1498    
1499 schoenebeck 210 /**
1500     * Will be called by the parser to enable or disable echo mode; if echo
1501     * mode is enabled, all commands from the client will (immediately) be
1502     * echoed back to the client.
1503     */
1504     String LSCPServer::SetEcho(yyparse_param_t* pSession, double boolean_value) {
1505     dmsg(2,("LSCPServer: SetEcho(val=%f)\n", boolean_value));
1506     LSCPResultSet result;
1507     try {
1508     if (boolean_value == 0) pSession->bVerbose = false;
1509     else if (boolean_value == 1) pSession->bVerbose = true;
1510     else throw LinuxSamplerException("Not a boolean value, must either be 0 or 1");
1511     }
1512     catch (LinuxSamplerException e) {
1513     result.Error(e);
1514     }
1515     return result.Produce();
1516     }

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