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

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revision 123 by schoenebeck, Mon Jun 14 19:33:16 2004 UTC revision 376 by senkov, Sat Feb 12 23:48:50 2005 UTC
# Line 22  Line 22 
22    
23  #include "lscpserver.h"  #include "lscpserver.h"
24  #include "lscpresultset.h"  #include "lscpresultset.h"
25    #include "lscpevent.h"
26    
27  #include "../engines/gig/Engine.h"  #include "../engines/gig/Engine.h"
28  #include "../audiodriver/AudioOutputDeviceFactory.h"  #include "../drivers/audio/AudioOutputDeviceFactory.h"
29    #include "../drivers/midi/MidiInputDeviceFactory.h"
30    
31    /**
32     * Below are a few static members of the LSCPServer class.
33     * The big assumption here is that LSCPServer is going to remain a singleton.
34     * These members are used to support client connections.
35     * Class handles multiple connections at the same time using select() and non-blocking recv()
36     * Commands are processed by a single LSCPServer thread.
37     * Notifications are delivered either by the thread that originated them
38     * or (if the resultset is currently in progress) by the LSCPServer thread
39     * after the resultset was sent out.
40     * This makes sure that resultsets can not be interrupted by notifications.
41     * This also makes sure that the thread sending notification is not blocked
42     * by the LSCPServer thread.
43     */
44    fd_set LSCPServer::fdSet;
45    int LSCPServer::currentSocket = -1;
46    std::vector<yyparse_param_t> LSCPServer::Sessions = std::vector<yyparse_param_t>();
47    std::map<int,String> LSCPServer::bufferedNotifies = std::map<int,String>();
48    std::map<int,String> LSCPServer::bufferedCommands = std::map<int,String>();
49    std::map< LSCPEvent::event_t, std::list<int> > LSCPServer::eventSubscriptions = std::map< LSCPEvent::event_t, std::list<int> >();
50    Mutex LSCPServer::NotifyMutex = Mutex();
51    Mutex LSCPServer::NotifyBufferMutex = Mutex();
52    Mutex LSCPServer::SubscriptionMutex = Mutex();
53    Mutex LSCPServer::RTNotifyMutex = Mutex();
54    
55  LSCPServer::LSCPServer(Sampler* pSampler) : Thread(false, 0, -4) {  LSCPServer::LSCPServer(Sampler* pSampler) : Thread(false, 0, -4) {
56      this->pSampler = pSampler;      this->pSampler = pSampler;
57        LSCPEvent::RegisterEvent(LSCPEvent::event_channels, "CHANNELS");
58        LSCPEvent::RegisterEvent(LSCPEvent::event_voice_count, "VOICE_COUNT");
59        LSCPEvent::RegisterEvent(LSCPEvent::event_stream_count, "STREAM_COUNT");
60        LSCPEvent::RegisterEvent(LSCPEvent::event_buffer_fill, "BUFFER_FILL");
61        LSCPEvent::RegisterEvent(LSCPEvent::event_info, "INFO");
62        LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");
63    }
64    
65    /**
66     * Blocks the calling thread until the LSCP Server is initialized and
67     * accepting socket connections, if the server is already initialized then
68     * this method will return immediately.
69     * @param TimeoutSeconds     - optional: max. wait time in seconds
70     *                             (default: 0s)
71     * @param TimeoutNanoSeconds - optional: max wait time in nano seconds
72     *                             (default: 0ns)
73     * @returns  0 on success, a value less than 0 if timeout exceeded
74     */
75    int LSCPServer::WaitUntilInitialized(long TimeoutSeconds, long TimeoutNanoSeconds) {
76        return Initialized.WaitAndUnlockIf(false, TimeoutSeconds, TimeoutNanoSeconds);
77  }  }
78    
79  int LSCPServer::Main() {  int LSCPServer::Main() {
80      hSocket = socket(AF_INET, SOCK_STREAM, 0);      int hSocket = socket(AF_INET, SOCK_STREAM, 0);
81      if (hSocket < 0) {      if (hSocket < 0) {
82          std::cerr << "LSCPServer: Could not create server socket." << std::endl;          std::cerr << "LSCPServer: Could not create server socket." << std::endl;
83          //return -1;          //return -1;
# Line 43  int LSCPServer::Main() { Line 89  int LSCPServer::Main() {
89      SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);      SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);
90    
91      if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {      if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
92          std::cerr << "LSCPServer: Could not bind server socket." << std::endl;          std::cerr << "LSCPServer: Could not bind server socket, retrying for " << ToString(LSCP_SERVER_BIND_TIMEOUT) << " seconds...";
93          close(hSocket);          for (int trial = 0; true; trial++) { // retry for LSCP_SERVER_BIND_TIMEOUT seconds
94          //return -1;              if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
95          exit(EXIT_FAILURE);                  if (trial > LSCP_SERVER_BIND_TIMEOUT) {
96                        std::cerr << "gave up!" << std::endl;
97                        close(hSocket);
98                        //return -1;
99                        exit(EXIT_FAILURE);
100                    }
101                    else sleep(1); // sleep 1s
102                }
103                else break; // success
104            }
105      }      }
106    
107      listen(hSocket, 1);      listen(hSocket, 1);
108      dmsg(1,("LSCPServer: Server running.\n")); // server running      Initialized.Set(true);
109    
110      // now wait for client connections and handle their requests      // now wait for client connections and handle their requests
111      sockaddr_in client;      sockaddr_in client;
112      int length = sizeof(client);      int length = sizeof(client);
113        FD_ZERO(&fdSet);
114        FD_SET(hSocket, &fdSet);
115        int maxSessions = hSocket;
116    
117      while (true) {      while (true) {
118          hSession = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length);          fd_set selectSet = fdSet;
119          if (hSession < 0) {          int retval = select(maxSessions+1, &selectSet, NULL, NULL, NULL);
120              std::cerr << "LSCPServer: Client connection failed." << std::endl;          if (retval == 0)
121              close(hSocket);                  continue; //Nothing try again
122              //return -1;          if (retval == -1) {
123              exit(EXIT_FAILURE);                  std::cerr << "LSCPServer: Socket select error." << std::endl;
124          }                  close(hSocket);
125                    exit(EXIT_FAILURE);
126          dmsg(1,("LSCPServer: Client connection established.\n"));          }
127          //send(hSession, "Welcome!\r\n", 10, 0);  
128            //Accept new connections now (if any)
129          // Parser invocation          if (FD_ISSET(hSocket, &selectSet)) {
130          yyparse_param_t yyparse_param;                  int socket = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length);
131          yyparse_param.pServer = this;                  if (socket < 0) {
132          yylex_init(&yyparse_param.pScanner);                          std::cerr << "LSCPServer: Client connection failed." << std::endl;
133          while (yyparse(&yyparse_param) == LSCP_SYNTAX_ERROR); // recall parser in case of syntax error                          exit(EXIT_FAILURE);
134          yylex_destroy(yyparse_param.pScanner);                  }
135    
136                    if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
137                            std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
138                            exit(EXIT_FAILURE);
139                    }
140    
141                    // Parser initialization
142                    yyparse_param_t yyparse_param;
143                    yyparse_param.pServer  = this;
144                    yyparse_param.hSession = socket;
145    
146                    Sessions.push_back(yyparse_param);
147                    FD_SET(socket, &fdSet);
148                    if (socket > maxSessions)
149                            maxSessions = socket;
150                    dmsg(1,("LSCPServer: Client connection established on socket:%d.\n", socket));
151                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection established on socket", socket));
152                    continue; //Maybe this was the only selected socket, better select again
153            }
154    
155          close(hSession);          //Something was selected and it was not the hSocket, so it must be some command(s) coming.
156          dmsg(1,("LSCPServer: Client connection terminated.\n"));          for (std::vector<yyparse_param_t>::iterator iter = Sessions.begin(); iter != Sessions.end(); iter++) {
157                    if (FD_ISSET((*iter).hSession, &selectSet)) {   //Was it this socket?
158                            if (GetLSCPCommand(iter)) {     //Have we read the entire command?
159                                    dmsg(3,("LSCPServer: Got command on socket %d, calling parser.\n", currentSocket));
160                                    int dummy; // just a temporary hack to fulfill the restart() function prototype
161                                    restart(NULL, dummy); // restart the 'scanner'
162                                    currentSocket = (*iter).hSession;  //a hack
163                                    if ((*iter).bVerbose) { // if echo mode enabled
164                                        AnswerClient(bufferedCommands[currentSocket]);
165                                    }
166                                    int result = yyparse(&(*iter));
167                                    currentSocket = -1;     //continuation of a hack
168                                    dmsg(3,("LSCPServer: Done parsing on socket %d.\n", currentSocket));
169                                    if (result == LSCP_QUIT) { //Was it a quit command by any chance?
170                                            CloseConnection(iter);
171                                    }
172                            }
173                            //socket may have been closed, iter may be invalid, get out of the loop for now.
174                            //we'll be back if there is data.
175                            break;
176                    }
177            }
178    
179            //Now let's deliver late notifies (if any)
180            NotifyBufferMutex.Lock();
181            for (std::map<int,String>::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) {
182                    send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), 0);
183                    bufferedNotifies.erase(iterNotify);
184            }
185            NotifyBufferMutex.Unlock();
186      }      }
187  }  }
188    
189    void LSCPServer::CloseConnection( std::vector<yyparse_param_t>::iterator iter ) {
190            int socket = (*iter).hSession;
191            dmsg(1,("LSCPServer: Client connection terminated on socket:%d.\n",socket));
192            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection terminated on socket", socket));
193            Sessions.erase(iter);
194            FD_CLR(socket,  &fdSet);
195            SubscriptionMutex.Lock(); //Must unsubscribe this socket from all events (if any)
196            for (std::map< LSCPEvent::event_t, std::list<int> >::iterator iter = eventSubscriptions.begin(); iter != eventSubscriptions.end(); iter++) {
197                    iter->second.remove(socket);
198            }
199            SubscriptionMutex.Unlock();
200            NotifyMutex.Lock();
201            bufferedCommands.erase(socket);
202            bufferedNotifies.erase(socket);
203            close(socket);
204            NotifyMutex.Unlock();
205    }
206    
207    int LSCPServer::EventSubscribers( std::list<LSCPEvent::event_t> events ) {
208            int subs = 0;
209            SubscriptionMutex.Lock();
210            for( std::list<LSCPEvent::event_t>::iterator iter = events.begin();
211                            iter != events.end(); iter++)
212            {
213                    subs += eventSubscriptions.count(*iter);
214            }
215            SubscriptionMutex.Unlock();
216            return subs;
217    }
218    
219    void LSCPServer::SendLSCPNotify( LSCPEvent event ) {
220            SubscriptionMutex.Lock();
221            if (eventSubscriptions.count(event.GetType()) == 0) {
222                    SubscriptionMutex.Unlock();     //Nobody is subscribed to this event
223                    return;
224            }
225            std::list<int>::iterator iter = eventSubscriptions[event.GetType()].begin();
226            std::list<int>::iterator end = eventSubscriptions[event.GetType()].end();
227            String notify = event.Produce();
228    
229            while (true) {
230                    if (NotifyMutex.Trylock()) {
231                            for(;iter != end; iter++)
232                                    send(*iter, notify.c_str(), notify.size(), 0);
233                            NotifyMutex.Unlock();
234                            break;
235                    } else {
236                            if (NotifyBufferMutex.Trylock()) {
237                                    for(;iter != end; iter++)
238                                            bufferedNotifies[*iter] += notify;
239                                    NotifyBufferMutex.Unlock();
240                                    break;
241                            }
242                    }
243            }
244            SubscriptionMutex.Unlock();
245    }
246    
247    extern int GetLSCPCommand( void *buf, int max_size ) {
248            String command = LSCPServer::bufferedCommands[LSCPServer::currentSocket];
249            if (command.size() == 0) {              //Parser wants input but we have nothing.
250                    strcpy((char*) buf, "\n");      //So give it an empty command
251                    return 1;                       //to keep it happy.
252            }
253    
254            if (max_size < command.size()) {
255                    std::cerr << "getLSCPCommand: Flex buffer too small, ignoring the command." << std::endl;
256                    return 0;       //This will never happen
257            }
258    
259            strcpy((char*) buf, command.c_str());
260            LSCPServer::bufferedCommands.erase(LSCPServer::currentSocket);
261            return command.size();
262    }
263    
264    /**
265     * Will be called to try to read the command from the socket
266     * If command is read, it will return true. Otherwise false is returned.
267     * In any case the received portion (complete or incomplete) is saved into bufferedCommand map.
268     */
269    bool LSCPServer::GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter ) {
270            int socket = (*iter).hSession;
271            char c;
272            int i = 0;
273            while (true) {
274                    int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now
275                    if (result == 0) { //socket was selected, so 0 here means client has closed the connection
276                            CloseConnection(iter);
277                            break;
278                    }
279                    if (result == 1) {
280                            if (c == '\r')
281                                    continue; //Ignore CR
282                            if (c == '\n') {
283                                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Received \'" + bufferedCommands[socket] + "\' on socket", socket));
284                                    bufferedCommands[socket] += "\n";
285                                    return true; //Complete command was read
286                            }
287                            bufferedCommands[socket] += c;
288                    }
289                    if (result == -1) {
290                            if (errno == EAGAIN) //Would block, try again later.
291                                    return false;
292                            switch(errno) {
293                                    case EBADF:
294                                            dmsg(2,("LSCPScanner: The argument s is an invalid descriptor.\n"));
295                                            break;
296                                    case ECONNREFUSED:
297                                            dmsg(2,("LSCPScanner: A remote host refused to allow the network connection (typically because it is not running the requested service).\n"));
298                                            break;
299                                    case ENOTCONN:
300                                            dmsg(2,("LSCPScanner: The socket is associated with a connection-oriented protocol and has not been connected (see connect(2) and accept(2)).\n"));
301                                            break;
302                                    case ENOTSOCK:
303                                            dmsg(2,("LSCPScanner: The argument s does not refer to a socket.\n"));
304                                            break;
305                                    case EAGAIN:
306                                            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"));
307                                            break;
308                                    case EINTR:
309                                            dmsg(2,("LSCPScanner: The receive was interrupted by delivery of a signal before any data were available.\n"));
310                                            break;
311                                    case EFAULT:
312                                            dmsg(2,("LSCPScanner: The receive buffer pointer(s) point outside the process's address space.\n"));
313                                            break;
314                                    case EINVAL:
315                                            dmsg(2,("LSCPScanner: Invalid argument passed.\n"));
316                                            break;
317                                    case ENOMEM:
318                                            dmsg(2,("LSCPScanner: Could not allocate memory for recvmsg.\n"));
319                                            break;
320                                    default:
321                                            dmsg(2,("LSCPScanner: Unknown recv() error.\n"));
322                                            break;
323                            }
324                            CloseConnection(iter);
325                            break;
326                    }
327            }
328            return false;
329    }
330    
331  /**  /**
332   * Will be called by the parser whenever it wants to send an answer to the   * Will be called by the parser whenever it wants to send an answer to the
333   * client / frontend.   * client / frontend.
# Line 87  int LSCPServer::Main() { Line 336  int LSCPServer::Main() {
336   */   */
337  void LSCPServer::AnswerClient(String ReturnMessage) {  void LSCPServer::AnswerClient(String ReturnMessage) {
338      dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));      dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));
339      send(hSession, ReturnMessage.c_str(), ReturnMessage.size(), 0);      if (currentSocket != -1) {
340                NotifyMutex.Lock();
341                send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);
342                NotifyMutex.Unlock();
343        }
344    }
345    
346    /**
347     * Find a created audio output device index.
348     */
349    int LSCPServer::GetAudioOutputDeviceIndex ( AudioOutputDevice *pDevice )
350    {
351        // Search for the created device to get its index
352        std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
353        std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
354        for (; iter != devices.end(); iter++) {
355            if (iter->second == pDevice)
356                return iter->first;
357        }
358        // Not found.
359        return -1;
360    }
361    
362    /**
363     * Find a created midi input device index.
364     */
365    int LSCPServer::GetMidiInputDeviceIndex ( MidiInputDevice *pDevice )
366    {
367        // Search for the created device to get its index
368        std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
369        std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
370        for (; iter != devices.end(); iter++) {
371            if (iter->second == pDevice)
372                return iter->first;
373        }
374        // Not found.
375        return -1;
376  }  }
377    
378  String LSCPServer::CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters) {  String LSCPServer::CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters) {
# Line 95  String LSCPServer::CreateAudioOutputDevi Line 380  String LSCPServer::CreateAudioOutputDevi
380      LSCPResultSet result;      LSCPResultSet result;
381      try {      try {
382          AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters);          AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters);
         std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();  
383          // search for the created device to get its index          // search for the created device to get its index
384          int index = -1;          int index = GetAudioOutputDeviceIndex(pDevice);
         std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();  
         for (; iter != devices.end(); iter++) {  
             if (iter->second == pDevice) {  
                 index = iter->first;  
                 break;  
             }  
         }  
385          if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device.");          if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device.");
386          result = index; // success          result = index; // success
387      }      }
# Line 114  String LSCPServer::CreateAudioOutputDevi Line 391  String LSCPServer::CreateAudioOutputDevi
391      return result.Produce();      return result.Produce();
392  }  }
393    
394    String LSCPServer::CreateMidiInputDevice(String Driver, std::map<String,String> Parameters) {
395        dmsg(2,("LSCPServer: CreateMidiInputDevice(Driver=%s)\n", Driver.c_str()));
396        LSCPResultSet result;
397        try {
398            MidiInputDevice* pDevice = pSampler->CreateMidiInputDevice(Driver, Parameters);
399            // search for the created device to get its index
400            int index = GetMidiInputDeviceIndex(pDevice);
401            if (index == -1) throw LinuxSamplerException("Internal error: could not find created midi input device.");
402            result = index; // success
403        }
404        catch (LinuxSamplerException e) {
405            result.Error(e);
406        }
407        return result.Produce();
408    }
409    
410  String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) {  String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) {
411      dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex));      dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex));
412      LSCPResultSet result;      LSCPResultSet result;
413      try {      try {
414          std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
415          if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");          if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
416          AudioOutputDevice* pDevice = devices[DeviceIndex];          AudioOutputDevice* pDevice = devices[DeviceIndex];
417          pSampler->DestroyAudioOutputDevice(pDevice);          pSampler->DestroyAudioOutputDevice(pDevice);
418      }      }
# Line 129  String LSCPServer::DestroyAudioOutputDev Line 422  String LSCPServer::DestroyAudioOutputDev
422      return result.Produce();      return result.Produce();
423  }  }
424    
425    String LSCPServer::DestroyMidiInputDevice(uint DeviceIndex) {
426        dmsg(2,("LSCPServer: DestroyMidiInputDevice(DeviceIndex=%d)\n", DeviceIndex));
427        LSCPResultSet result;
428        try {
429            std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
430            if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
431            MidiInputDevice* pDevice = devices[DeviceIndex];
432            pSampler->DestroyMidiInputDevice(pDevice);
433        }
434        catch (LinuxSamplerException e) {
435            result.Error(e);
436        }
437        return result.Produce();
438    }
439    
440  /**  /**
441   * Will be called by the parser to load an instrument.   * Will be called by the parser to load an instrument.
442   */   */
443  String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel) {  String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground) {
444      dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));      dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));
445      LSCPResultSet result;      LSCPResultSet result;
446      try {      try {
447          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
448          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
449          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
450          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
451          pEngine->LoadInstrument(Filename.c_str(), uiInstrument);          if (!pSamplerChannel->GetAudioOutputDevice())
452                throw LinuxSamplerException("No audio output device connected to sampler channel");
453            if (bBackground) {
454                LSCPLoadInstrument *pLoadInstrument = new LSCPLoadInstrument(pEngine, Filename.c_str(), uiInstrument);
455                pLoadInstrument->StartThread();
456            }
457            else pEngine->LoadInstrument(Filename.c_str(), uiInstrument);
458      }      }
459      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
460           result.Error(e);           result.Error(e);
# Line 159  String LSCPServer::LoadEngine(String Eng Line 473  String LSCPServer::LoadEngine(String Eng
473          if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig;          if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig;
474          else throw LinuxSamplerException("Unknown engine type");          else throw LinuxSamplerException("Unknown engine type");
475          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
476          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
477            LockRTNotify();
478          pSamplerChannel->LoadEngine(type);          pSamplerChannel->LoadEngine(type);
479            UnlockRTNotify();
480      }      }
481      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
482           result.Error(e);           result.Error(e);
# Line 179  String LSCPServer::GetChannels() { Line 495  String LSCPServer::GetChannels() {
495  }  }
496    
497  /**  /**
498     * Will be called by the parser to get the list of sampler channels.
499     */
500    String LSCPServer::ListChannels() {
501        dmsg(2,("LSCPServer: ListChannels()\n"));
502        String list;
503        std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
504        std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
505        for (; iter != channels.end(); iter++) {
506            if (list != "") list += ",";
507            list += ToString(iter->first);
508        }
509        LSCPResultSet result;
510        result.Add(list);
511        return result.Produce();
512    }
513    
514    /**
515   * Will be called by the parser to add a sampler channel.   * Will be called by the parser to add a sampler channel.
516   */   */
517  String LSCPServer::AddChannel() {  String LSCPServer::AddChannel() {
# Line 194  String LSCPServer::AddChannel() { Line 527  String LSCPServer::AddChannel() {
527  String LSCPServer::RemoveChannel(uint uiSamplerChannel) {  String LSCPServer::RemoveChannel(uint uiSamplerChannel) {
528      dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));      dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));
529      LSCPResultSet result;      LSCPResultSet result;
530        LockRTNotify();
531      pSampler->RemoveSamplerChannel(uiSamplerChannel);      pSampler->RemoveSamplerChannel(uiSamplerChannel);
532        UnlockRTNotify();
533      return result.Produce();      return result.Produce();
534  }  }
535    
# Line 216  String LSCPServer::GetEngineInfo(String Line 551  String LSCPServer::GetEngineInfo(String
551      try {      try {
552          if ((EngineName == "GigEngine") || (EngineName == "gig")) {          if ((EngineName == "GigEngine") || (EngineName == "gig")) {
553              Engine* pEngine = new LinuxSampler::gig::Engine;              Engine* pEngine = new LinuxSampler::gig::Engine;
554              result.Add(pEngine->Description());              result.Add("DESCRIPTION", pEngine->Description());
555              result.Add(pEngine->Version());              result.Add("VERSION",     pEngine->Version());
556              delete pEngine;              delete pEngine;
557          }          }
558          else throw LinuxSamplerException("Unknown engine type");          else throw LinuxSamplerException("Unknown engine type");
# Line 237  String LSCPServer::GetChannelInfo(uint u Line 572  String LSCPServer::GetChannelInfo(uint u
572      LSCPResultSet result;      LSCPResultSet result;
573      try {      try {
574          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
575          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
576          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
577    
578          //Defaults values          //Defaults values
579          String EngineName = "NONE";          String EngineName = "NONE";
580          float Volume = 0;          float Volume = 0.0f;
581          String InstrumentFileName = "NONE";          String InstrumentFileName = "NONE";
582          int InstrumentIndex = 0;          String InstrumentName = "NONE";
583            int InstrumentIndex = -1;
584            int InstrumentStatus = -1;
585            int AudioOutputChannels = 0;
586            String AudioRouting;
587    
588          if (pEngine) {          if (pEngine) {
589              EngineName =  pEngine->EngineName();              EngineName =  pEngine->EngineName();
590                AudioOutputChannels = pEngine->Channels();
591              Volume = pEngine->Volume();              Volume = pEngine->Volume();
592              int iIdx = pEngine->InstrumentIndex();              InstrumentStatus = pEngine->InstrumentStatus();
593              if (iIdx != -1) {              InstrumentIndex = pEngine->InstrumentIndex();
594                if (InstrumentIndex != -1)
595                {
596                  InstrumentFileName = pEngine->InstrumentFileName();                  InstrumentFileName = pEngine->InstrumentFileName();
597                  InstrumentIndex = iIdx;                  InstrumentName = pEngine->InstrumentName();
598                }
599                for (int chan = 0; chan < pEngine->Channels(); chan++) {
600                    if (AudioRouting != "") AudioRouting += ",";
601                    AudioRouting += ToString(pEngine->OutputChannel(chan));
602              }              }
603          }          }
604    
605          result.Add("ENGINE_NAME", EngineName);          result.Add("ENGINE_NAME", EngineName);
606          result.Add("VOLUME", Volume);          result.Add("VOLUME", Volume);
607    
608          //Some hardcoded stuff for now to make GUI look good          //Some not-so-hardcoded stuff to make GUI look good
609          result.Add("AUDIO_OUTPUT_DEVICE", "0");          result.Add("AUDIO_OUTPUT_DEVICE", GetAudioOutputDeviceIndex(pSamplerChannel->GetAudioOutputDevice()));
610          result.Add("AUDIO_OUTPUT_CHANNELS", "2");          result.Add("AUDIO_OUTPUT_CHANNELS", AudioOutputChannels);
611          result.Add("AUDIO_OUTPUT_ROUTING", "0,1");          result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);
612    
613            result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));
614            result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());
615            if (pSamplerChannel->GetMidiInputChannel() == MidiInputPort::midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");
616            else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
617    
618          result.Add("INSTRUMENT_FILE", InstrumentFileName);          result.Add("INSTRUMENT_FILE", InstrumentFileName);
619          result.Add("INSTRUMENT_NR", InstrumentIndex);          result.Add("INSTRUMENT_NR", InstrumentIndex);
620            result.Add("INSTRUMENT_NAME", InstrumentName);
621          //Some more hardcoded stuff for now to make GUI look good          result.Add("INSTRUMENT_STATUS", InstrumentStatus);
         result.Add("MIDI_INPUT_DEVICE", "0");  
         result.Add("MIDI_INPUT_PORT", "0");  
         result.Add("MIDI_INPUT_CHANNEL", "1");  
622      }      }
623      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
624           result.Error(e);           result.Error(e);
# Line 287  String LSCPServer::GetVoiceCount(uint ui Line 635  String LSCPServer::GetVoiceCount(uint ui
635      LSCPResultSet result;      LSCPResultSet result;
636      try {      try {
637          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
638          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
639          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
640          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
641          result.Add(pEngine->VoiceCount());          result.Add(pEngine->VoiceCount());
642      }      }
643      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 307  String LSCPServer::GetStreamCount(uint u Line 655  String LSCPServer::GetStreamCount(uint u
655      LSCPResultSet result;      LSCPResultSet result;
656      try {      try {
657          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
658          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
659          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
660          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
661          result.Add(pEngine->DiskStreamCount());          result.Add(pEngine->DiskStreamCount());
662      }      }
663      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 327  String LSCPServer::GetBufferFill(fill_re Line 675  String LSCPServer::GetBufferFill(fill_re
675      LSCPResultSet result;      LSCPResultSet result;
676      try {      try {
677          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
678          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
679          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
680          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
681          if (!pEngine->DiskStreamSupported()) return "NA\r\n"; //FIXME: Update resultset class to support "NA"          if (!pEngine->DiskStreamSupported())
682          switch (ResponseType) {              result.Add("NA");
683              case fill_response_bytes:          else {
684                  result.Add(pEngine->DiskStreamBufferFillBytes());              switch (ResponseType) {
685                  break;                  case fill_response_bytes:
686              case fill_response_percentage:                      result.Add(pEngine->DiskStreamBufferFillBytes());
687                  result.Add(pEngine->DiskStreamBufferFillPercentage());                      break;
688                  break;                  case fill_response_percentage:
689              default:                      result.Add(pEngine->DiskStreamBufferFillPercentage());
690                  throw LinuxSamplerException("Unknown fill response type");                      break;
691          }                  default:
692                        throw LinuxSamplerException("Unknown fill response type");
693                }
694            }
695      }      }
696      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
697           result.Error(e);           result.Error(e);
# Line 361  String LSCPServer::GetAvailableAudioOutp Line 712  String LSCPServer::GetAvailableAudioOutp
712      return result.Produce();      return result.Produce();
713  }  }
714    
715    String LSCPServer::GetAvailableMidiInputDrivers() {
716        dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));
717        LSCPResultSet result;
718        try {
719            String s = MidiInputDeviceFactory::AvailableDriversAsString();
720            result.Add(s);
721        }
722        catch (LinuxSamplerException e) {
723            result.Error(e);
724        }
725        return result.Produce();
726    }
727    
728    String LSCPServer::GetMidiInputDriverInfo(String Driver) {
729        dmsg(2,("LSCPServer: GetMidiInputDriverInfo(Driver=%s)\n",Driver.c_str()));
730        LSCPResultSet result;
731        try {
732            result.Add("DESCRIPTION", MidiInputDeviceFactory::GetDriverDescription(Driver));
733            result.Add("VERSION",     MidiInputDeviceFactory::GetDriverVersion(Driver));
734    
735            std::map<String,DeviceCreationParameter*> parameters = MidiInputDeviceFactory::GetAvailableDriverParameters(Driver);
736            if (parameters.size()) { // if there are parameters defined for this driver
737                String s;
738                std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
739                for (;iter != parameters.end(); iter++) {
740                    if (s != "") s += ",";
741                    s += iter->first;
742                }
743                result.Add("PARAMETERS", s);
744            }
745        }
746        catch (LinuxSamplerException e) {
747            result.Error(e);
748        }
749        return result.Produce();
750    }
751    
752  String LSCPServer::GetAudioOutputDriverInfo(String Driver) {  String LSCPServer::GetAudioOutputDriverInfo(String Driver) {
753      dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));      dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));
754      LSCPResultSet result;      LSCPResultSet result;
# Line 385  String LSCPServer::GetAudioOutputDriverI Line 773  String LSCPServer::GetAudioOutputDriverI
773      return result.Produce();      return result.Produce();
774  }  }
775    
776    String LSCPServer::GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
777        dmsg(2,("LSCPServer: GetMidiInputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
778        LSCPResultSet result;
779        try {
780            DeviceCreationParameter* pParameter = MidiInputDeviceFactory::GetDriverParameter(Driver, Parameter);
781            result.Add("TYPE",         pParameter->Type());
782            result.Add("DESCRIPTION",  pParameter->Description());
783            result.Add("MANDATORY",    pParameter->Mandatory());
784            result.Add("FIX",          pParameter->Fix());
785            result.Add("MULTIPLICITY", pParameter->Multiplicity());
786            optional<String> oDepends       = pParameter->Depends();
787            optional<String> oDefault       = pParameter->Default(DependencyList);
788            optional<String> oRangeMin      = pParameter->RangeMin(DependencyList);
789            optional<String> oRangeMax      = pParameter->RangeMax(DependencyList);
790            optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
791            if (oDepends)       result.Add("DEPENDS",       *oDepends);
792            if (oDefault)       result.Add("DEFAULT",       *oDefault);
793            if (oRangeMin)      result.Add("RANGE_MIN",     *oRangeMin);
794            if (oRangeMax)      result.Add("RANGE_MAX",     *oRangeMax);
795            if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
796        }
797        catch (LinuxSamplerException e) {
798            result.Error(e);
799        }
800        return result.Produce();
801    }
802    
803  String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {  String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
804      dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s)\n",Driver.c_str(),Parameter.c_str()));      dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
805      LSCPResultSet result;      LSCPResultSet result;
806      try {      try {
807          DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);          DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);
# Line 395  String LSCPServer::GetAudioOutputDriverP Line 810  String LSCPServer::GetAudioOutputDriverP
810          result.Add("MANDATORY",    pParameter->Mandatory());          result.Add("MANDATORY",    pParameter->Mandatory());
811          result.Add("FIX",          pParameter->Fix());          result.Add("FIX",          pParameter->Fix());
812          result.Add("MULTIPLICITY", pParameter->Multiplicity());          result.Add("MULTIPLICITY", pParameter->Multiplicity());
813          if (pParameter->Depends())       result.Add("DEPENDS",       pParameter->Depends());          optional<String> oDepends       = pParameter->Depends();
814          if (pParameter->Default())       result.Add("DEFAULT",       pParameter->Default());          optional<String> oDefault       = pParameter->Default(DependencyList);
815          if (pParameter->RangeMin())      result.Add("RANGE_MIN",     pParameter->RangeMin());          optional<String> oRangeMin      = pParameter->RangeMin(DependencyList);
816          if (pParameter->RangeMax())      result.Add("RANGE_MAX",     pParameter->RangeMax());          optional<String> oRangeMax      = pParameter->RangeMax(DependencyList);
817          if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities());          optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
818            if (oDepends)       result.Add("DEPENDS",       *oDepends);
819            if (oDefault)       result.Add("DEFAULT",       *oDefault);
820            if (oRangeMin)      result.Add("RANGE_MIN",     *oRangeMin);
821            if (oRangeMax)      result.Add("RANGE_MAX",     *oRangeMax);
822            if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
823      }      }
824      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
825          result.Error(e);          result.Error(e);
# Line 412  String LSCPServer::GetAudioOutputDeviceC Line 832  String LSCPServer::GetAudioOutputDeviceC
832      LSCPResultSet result;      LSCPResultSet result;
833      try {      try {
834          uint count = pSampler->AudioOutputDevices();          uint count = pSampler->AudioOutputDevices();
835          result = count; // success          result.Add(count); // success
836        }
837        catch (LinuxSamplerException e) {
838            result.Error(e);
839        }
840        return result.Produce();
841    }
842    
843    String LSCPServer::GetMidiInputDeviceCount() {
844        dmsg(2,("LSCPServer: GetMidiInputDeviceCount()\n"));
845        LSCPResultSet result;
846        try {
847            uint count = pSampler->MidiInputDevices();
848            result.Add(count); // success
849      }      }
850      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
851          result.Error(e);          result.Error(e);
# Line 439  String LSCPServer::GetAudioOutputDevices Line 872  String LSCPServer::GetAudioOutputDevices
872      return result.Produce();      return result.Produce();
873  }  }
874    
875    String LSCPServer::GetMidiInputDevices() {
876        dmsg(2,("LSCPServer: GetMidiInputDevices()\n"));
877        LSCPResultSet result;
878        try {
879            String s;
880            std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
881            std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
882            for (; iter != devices.end(); iter++) {
883                if (s != "") s += ",";
884                s += ToString(iter->first);
885            }
886            result.Add(s);
887        }
888        catch (LinuxSamplerException e) {
889            result.Error(e);
890        }
891        return result.Produce();
892    }
893    
894  String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {  String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {
895      dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));      dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
896      LSCPResultSet result;      LSCPResultSet result;
897      try {      try {
898          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
899          if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");          if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
900          AudioOutputDevice* pDevice = devices[DeviceIndex];          AudioOutputDevice* pDevice = devices[DeviceIndex];
901            result.Add("DRIVER", pDevice->Driver());
902            std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
903            std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
904            for (; iter != parameters.end(); iter++) {
905                result.Add(iter->first, iter->second->Value());
906            }
907        }
908        catch (LinuxSamplerException e) {
909            result.Error(e);
910        }
911        return result.Produce();
912    }
913    
914    String LSCPServer::GetMidiInputDeviceInfo(uint DeviceIndex) {
915        dmsg(2,("LSCPServer: GetMidiInputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
916        LSCPResultSet result;
917        try {
918            std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
919            if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
920            MidiInputDevice* pDevice = devices[DeviceIndex];
921            result.Add("DRIVER", pDevice->Driver());
922          std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();          std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
923          std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();          std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
924          for (; iter != parameters.end(); iter++) {          for (; iter != parameters.end(); iter++) {
# Line 457  String LSCPServer::GetAudioOutputDeviceI Line 930  String LSCPServer::GetAudioOutputDeviceI
930      }      }
931      return result.Produce();      return result.Produce();
932  }  }
933    String LSCPServer::GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex) {
934        dmsg(2,("LSCPServer: GetMidiInputPortInfo(DeviceIndex=%d, PortIndex=%d)\n",DeviceIndex, PortIndex));
935        LSCPResultSet result;
936        try {
937            // get MIDI input device
938            std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
939            if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
940            MidiInputDevice* pDevice = devices[DeviceIndex];
941    
942            // get MIDI port
943            MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
944            if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
945    
946            // return the values of all MIDI port parameters
947            std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
948            std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
949            for (; iter != parameters.end(); iter++) {
950                result.Add(iter->first, iter->second->Value());
951            }
952        }
953        catch (LinuxSamplerException e) {
954            result.Error(e);
955        }
956        return result.Produce();
957    }
958    
959  String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {  String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {
960      dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));      dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));
# Line 464  String LSCPServer::GetAudioOutputChannel Line 962  String LSCPServer::GetAudioOutputChannel
962      try {      try {
963          // get audio output device          // get audio output device
964          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
965          if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");          if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
966          AudioOutputDevice* pDevice = devices[DeviceId];          AudioOutputDevice* pDevice = devices[DeviceId];
967    
968          // get audio channel          // get audio channel
969          AudioChannel* pChannel = pDevice->Channel(ChannelId);          AudioChannel* pChannel = pDevice->Channel(ChannelId);
970          if (!pChannel) throw LinuxSamplerException("Audio ouotput device does not have channel " + ToString(ChannelId) + ".");          if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
971    
972          // return the values of all audio channel parameters          // return the values of all audio channel parameters
973          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
# Line 484  String LSCPServer::GetAudioOutputChannel Line 982  String LSCPServer::GetAudioOutputChannel
982      return result.Produce();      return result.Produce();
983  }  }
984    
985    String LSCPServer::GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName) {
986        dmsg(2,("LSCPServer: GetMidiInputPortParameterInfo(DeviceId=%d,PortId=%d,ParameterName=%s)\n",DeviceId,PortId,ParameterName.c_str()));
987        LSCPResultSet result;
988        try {
989            // get MIDI input device
990            std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
991            if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no midi input device with index " + ToString(DeviceId) + ".");
992            MidiInputDevice* pDevice = devices[DeviceId];
993    
994            // get midi port
995            MidiInputPort* pPort = pDevice->GetPort(PortId);
996            if (!pPort) throw LinuxSamplerException("Midi input device does not have port " + ToString(PortId) + ".");
997    
998            // get desired port parameter
999            std::map<String,DeviceRuntimeParameter*> parameters = pPort->PortParameters();
1000            if (!parameters.count(ParameterName)) throw LinuxSamplerException("Midi port does not provide a parameter '" + ParameterName + "'.");
1001            DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1002    
1003            // return all fields of this audio channel parameter
1004            result.Add("TYPE",         pParameter->Type());
1005            result.Add("DESCRIPTION",  pParameter->Description());
1006            result.Add("FIX",          pParameter->Fix());
1007            result.Add("MULTIPLICITY", pParameter->Multiplicity());
1008            if (pParameter->RangeMin())      result.Add("RANGE_MIN",     *pParameter->RangeMin());
1009            if (pParameter->RangeMax())      result.Add("RANGE_MAX",     *pParameter->RangeMax());
1010            if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1011        }
1012        catch (LinuxSamplerException e) {
1013            result.Error(e);
1014        }
1015        return result.Produce();
1016    }
1017    
1018  String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {  String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {
1019      dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));      dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));
1020      LSCPResultSet result;      LSCPResultSet result;
1021      try {      try {
1022          // get audio output device          // get audio output device
1023          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1024          if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");          if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1025          AudioOutputDevice* pDevice = devices[DeviceId];          AudioOutputDevice* pDevice = devices[DeviceId];
1026    
1027          // get audio channel          // get audio channel
1028          AudioChannel* pChannel = pDevice->Channel(ChannelId);          AudioChannel* pChannel = pDevice->Channel(ChannelId);
1029          if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + ".");          if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1030    
1031          // get desired audio channel parameter          // get desired audio channel parameter
1032          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1033          if (!parameters[ParameterName]) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");          if (!parameters.count(ParameterName)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");
1034          DeviceRuntimeParameter* pParameter = parameters[ParameterName];          DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1035    
1036          // return all fields of this audio channel parameter          // return all fields of this audio channel parameter
# Line 507  String LSCPServer::GetAudioOutputChannel Line 1038  String LSCPServer::GetAudioOutputChannel
1038          result.Add("DESCRIPTION",  pParameter->Description());          result.Add("DESCRIPTION",  pParameter->Description());
1039          result.Add("FIX",          pParameter->Fix());          result.Add("FIX",          pParameter->Fix());
1040          result.Add("MULTIPLICITY", pParameter->Multiplicity());          result.Add("MULTIPLICITY", pParameter->Multiplicity());
1041          if (pParameter->RangeMin())      result.Add("RANGE_MIN",     pParameter->RangeMin());          if (pParameter->RangeMin())      result.Add("RANGE_MIN",     *pParameter->RangeMin());
1042          if (pParameter->RangeMax())      result.Add("RANGE_MAX",     pParameter->RangeMax());          if (pParameter->RangeMax())      result.Add("RANGE_MAX",     *pParameter->RangeMax());
1043          if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities());          if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1044      }      }
1045      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1046          result.Error(e);          result.Error(e);
# Line 523  String LSCPServer::SetAudioOutputChannel Line 1054  String LSCPServer::SetAudioOutputChannel
1054      try {      try {
1055          // get audio output device          // get audio output device
1056          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1057          if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");          if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1058          AudioOutputDevice* pDevice = devices[DeviceId];          AudioOutputDevice* pDevice = devices[DeviceId];
1059    
1060          // get audio channel          // get audio channel
1061          AudioChannel* pChannel = pDevice->Channel(ChannelId);          AudioChannel* pChannel = pDevice->Channel(ChannelId);
1062          if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + ".");          if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1063    
1064          // get desired audio channel parameter          // get desired audio channel parameter
1065          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1066          if (!parameters[ParamKey]) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");          if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");
1067          DeviceRuntimeParameter* pParameter = parameters[ParamKey];          DeviceRuntimeParameter* pParameter = parameters[ParamKey];
1068    
1069          // set new channel parameter value          // set new channel parameter value
# Line 549  String LSCPServer::SetAudioOutputDeviceP Line 1080  String LSCPServer::SetAudioOutputDeviceP
1080      LSCPResultSet result;      LSCPResultSet result;
1081      try {      try {
1082          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1083          if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");          if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
1084          AudioOutputDevice* pDevice = devices[DeviceIndex];          AudioOutputDevice* pDevice = devices[DeviceIndex];
1085          std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();          std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1086          if (!parameters[ParamKey]) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");          if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1087            parameters[ParamKey]->SetValue(ParamVal);
1088        }
1089        catch (LinuxSamplerException e) {
1090            result.Error(e);
1091        }
1092        return result.Produce();
1093    }
1094    
1095    String LSCPServer::SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1096        dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1097        LSCPResultSet result;
1098        try {
1099            std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1100            if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1101            MidiInputDevice* pDevice = devices[DeviceIndex];
1102            std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1103            if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1104            parameters[ParamKey]->SetValue(ParamVal);
1105        }
1106        catch (LinuxSamplerException e) {
1107            result.Error(e);
1108        }
1109        return result.Produce();
1110    }
1111    
1112    String LSCPServer::SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal) {
1113        dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1114        LSCPResultSet result;
1115        try {
1116            // get MIDI input device
1117            std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1118            if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1119            MidiInputDevice* pDevice = devices[DeviceIndex];
1120    
1121            // get MIDI port
1122            MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
1123            if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
1124    
1125            // set port parameter value
1126            std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
1127            if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(PortIndex) + " does not have a parameter '" + ParamKey + "'");
1128          parameters[ParamKey]->SetValue(ParamVal);          parameters[ParamKey]->SetValue(ParamVal);
1129      }      }
1130      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 567  String LSCPServer::SetAudioOutputDeviceP Line 1139  String LSCPServer::SetAudioOutputDeviceP
1139   */   */
1140  String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {  String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {
1141      dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));      dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));
1142      return "ERR:0:Not implemented yet.\r\n"; //FIXME: Add support for this in resultset class?      LSCPResultSet result;
1143        try {
1144            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1145            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1146            Engine* pEngine = pSamplerChannel->GetEngine();
1147            if (!pEngine) throw LinuxSamplerException("No engine deployed on sampler channel " + ToString(uiSamplerChannel));
1148            if (!pSamplerChannel->GetAudioOutputDevice()) throw LinuxSamplerException("No audio output device connected to sampler channel " + ToString(uiSamplerChannel));
1149            pEngine->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel);
1150        }
1151        catch (LinuxSamplerException e) {
1152             result.Error(e);
1153        }
1154        return result.Produce();
1155  }  }
1156    
1157  String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {  String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint uiSamplerChannel) {
1158      dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));      dmsg(2,("LSCPServer: SetAudiotOutputDevice(AudioDeviceId=%d, SamplerChannel=%d)\n",AudioDeviceId,uiSamplerChannel));
1159      LSCPResultSet result;      LSCPResultSet result;
1160      try {      try {
1161          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1162          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1163          // FIXME: workaround until MIDI driver configuration is implemented (using a Factory class for the MIDI input drivers then, like its already done for audio output drivers)          std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1164          if (MidiInputDriver != "ALSA") throw LinuxSamplerException("Unknown MIDI input driver '" + MidiInputDriver + "'.");          if (!devices.count(AudioDeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId));
1165          MidiInputDevice::type_t MidiInputType = MidiInputDevice::type_alsa;          AudioOutputDevice* pDevice = devices[AudioDeviceId];
1166          pSamplerChannel->SetMidiInputDevice(MidiInputType);          pSamplerChannel->SetAudioOutputDevice(pDevice);
1167      }      }
1168      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1169           result.Error(e);           result.Error(e);
# Line 587  String LSCPServer::SetMIDIInputType(Stri Line 1171  String LSCPServer::SetMIDIInputType(Stri
1171      return result.Produce();      return result.Produce();
1172  }  }
1173    
1174  /**  String LSCPServer::SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel) {
1175   * Will be called by the parser to change the MIDI input port on which the      dmsg(2,("LSCPServer: SetAudioOutputType(String AudioOutputDriver=%s, SamplerChannel=%d)\n",AudioOutputDriver.c_str(),uiSamplerChannel));
1176   * engine of a particular sampler channel should listen to.      LSCPResultSet result;
1177   */      try {
1178  String LSCPServer::SetMIDIInputPort(String MIDIInputPort, uint uiSamplerChannel) {          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1179      dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIInputPort=%s, Samplerchannel=%d)\n", MIDIInputPort.c_str(), uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1180            // Driver type name aliasing...
1181            if (AudioOutputDriver == "Alsa") AudioOutputDriver = "ALSA";
1182            if (AudioOutputDriver == "Jack") AudioOutputDriver = "JACK";
1183            // Check if there's one audio output device already created
1184            // for the intended audio driver type (AudioOutputDriver)...
1185            AudioOutputDevice *pDevice = NULL;
1186            std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1187            std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
1188            for (; iter != devices.end(); iter++) {
1189                if ((iter->second)->Driver() == AudioOutputDriver) {
1190                    pDevice = iter->second;
1191                    break;
1192                }
1193            }
1194            // If it doesn't exist, create a new one with default parameters...
1195            if (pDevice == NULL) {
1196                std::map<String,String> params;
1197                pDevice = pSampler->CreateAudioOutputDevice(AudioOutputDriver, params);
1198            }
1199            // Must have a device...
1200            if (pDevice == NULL)
1201                throw LinuxSamplerException("Internal error: could not create audio output device.");
1202            // Set it as the current channel device...
1203            pSamplerChannel->SetAudioOutputDevice(pDevice);
1204        }
1205        catch (LinuxSamplerException e) {
1206             result.Error(e);
1207        }
1208        return result.Produce();
1209    }
1210    
1211    String LSCPServer::SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel) {
1212        dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIPort=%d, SamplerChannel=%d)\n",MIDIPort,uiSamplerChannel));
1213      LSCPResultSet result;      LSCPResultSet result;
1214      try {      try {
1215          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1216          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1217          if (!pSamplerChannel->GetMidiInputDevice()) throw LinuxSamplerException("No MIDI input device connected yet");          pSamplerChannel->SetMidiInputPort(MIDIPort);
         pSamplerChannel->GetMidiInputDevice()->SetInputPort(MIDIInputPort.c_str());  
1218      }      }
1219      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1220           result.Error(e);           result.Error(e);
# Line 606  String LSCPServer::SetMIDIInputPort(Stri Line 1222  String LSCPServer::SetMIDIInputPort(Stri
1222      return result.Produce();      return result.Produce();
1223  }  }
1224    
 /**  
  * Will be called by the parser to change the MIDI input channel on which the  
  * engine of a particular sampler channel should listen to.  
  */  
1225  String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {  String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {
1226      dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n", MIDIChannel, uiSamplerChannel));      dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n",MIDIChannel,uiSamplerChannel));
1227        LSCPResultSet result;
1228        try {
1229            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1230            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1231            pSamplerChannel->SetMidiInputChannel((MidiInputPort::midi_chan_t) MIDIChannel);
1232        }
1233        catch (LinuxSamplerException e) {
1234             result.Error(e);
1235        }
1236        return result.Produce();
1237    }
1238    
1239    String LSCPServer::SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel) {
1240        dmsg(2,("LSCPServer: SetMIDIInputDevice(MIDIDeviceId=%d, SamplerChannel=%d)\n",MIDIDeviceId,uiSamplerChannel));
1241        LSCPResultSet result;
1242        try {
1243            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1244            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1245            std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1246            if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1247            MidiInputDevice* pDevice = devices[MIDIDeviceId];
1248            pSamplerChannel->SetMidiInputDevice(pDevice);
1249        }
1250        catch (LinuxSamplerException e) {
1251             result.Error(e);
1252        }
1253        return result.Produce();
1254    }
1255    
1256    String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {
1257        dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));
1258      LSCPResultSet result;      LSCPResultSet result;
1259      try {      try {
1260          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1261          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1262          if (!pSamplerChannel->GetMidiInputDevice()) throw LinuxSamplerException("No MIDI input device connected yet");          // Driver type name aliasing...
1263          MidiInputDevice::type_t oldtype = pSamplerChannel->GetMidiInputDevice()->Type();          if (MidiInputDriver == "Alsa") MidiInputDriver = "ALSA";
1264          pSamplerChannel->SetMidiInputDevice(oldtype, (MidiInputDevice::midi_chan_t) MIDIChannel);          // Check if there's one MIDI input device already created
1265            // for the intended MIDI driver type (MidiInputDriver)...
1266            MidiInputDevice *pDevice = NULL;
1267            std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1268            std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
1269            for (; iter != devices.end(); iter++) {
1270                if ((iter->second)->Driver() == MidiInputDriver) {
1271                    pDevice = iter->second;
1272                    break;
1273                }
1274            }
1275            // If it doesn't exist, create a new one with default parameters...
1276            if (pDevice == NULL) {
1277                std::map<String,String> params;
1278                pDevice = pSampler->CreateMidiInputDevice(MidiInputDriver, params);
1279                // Make it with at least one initial port.
1280                std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1281                parameters["PORTS"]->SetValue("1");
1282            }
1283            // Must have a device...
1284            if (pDevice == NULL)
1285                throw LinuxSamplerException("Internal error: could not create MIDI input device.");
1286            // Set it as the current channel device...
1287            pSamplerChannel->SetMidiInputDevice(pDevice);
1288      }      }
1289      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1290           result.Error(e);           result.Error(e);
# Line 626  String LSCPServer::SetMIDIInputChannel(u Line 1292  String LSCPServer::SetMIDIInputChannel(u
1292      return result.Produce();      return result.Produce();
1293  }  }
1294    
1295  String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel) {  /**
1296     * Will be called by the parser to change the MIDI input device, port and channel on which
1297     * engine of a particular sampler channel should listen to.
1298     */
1299    String LSCPServer::SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel) {
1300        dmsg(2,("LSCPServer: SetMIDIInput(MIDIDeviceId=%d, MIDIPort=%d, MIDIChannel=%d, SamplerChannel=%d)\n", MIDIDeviceId, MIDIPort, MIDIChannel, uiSamplerChannel));
1301      LSCPResultSet result;      LSCPResultSet result;
1302      try {      try {
1303          throw LinuxSamplerException("Command not yet implemented");          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1304            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1305            std::map<uint, MidiInputDevice*> devices =  pSampler->GetMidiInputDevices();
1306            if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1307            MidiInputDevice* pDevice = devices[MIDIDeviceId];
1308            pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (MidiInputPort::midi_chan_t) MIDIChannel);
1309      }      }
1310      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1311           result.Error(e);           result.Error(e);
# Line 641  String LSCPServer::SetAudioOutputDevice( Line 1317  String LSCPServer::SetAudioOutputDevice(
1317   * Will be called by the parser to change the global volume factor on a   * Will be called by the parser to change the global volume factor on a
1318   * particular sampler channel.   * particular sampler channel.
1319   */   */
1320  String LSCPServer::SetVolume(double Volume, uint uiSamplerChannel) {  String LSCPServer::SetVolume(double dVolume, uint uiSamplerChannel) {
1321      dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", Volume, uiSamplerChannel));      dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", dVolume, uiSamplerChannel));
1322      LSCPResultSet result;      LSCPResultSet result;
1323      try {      try {
1324          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1325          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1326          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
1327          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
1328          pEngine->Volume(Volume);          pEngine->Volume(dVolume);
1329      }      }
1330      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1331           result.Error(e);           result.Error(e);
# Line 665  String LSCPServer::ResetChannel(uint uiS Line 1341  String LSCPServer::ResetChannel(uint uiS
1341      LSCPResultSet result;      LSCPResultSet result;
1342      try {      try {
1343          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1344          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1345          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
1346          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
1347          pEngine->Reset();          pEngine->Reset();
1348      }      }
1349      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 677  String LSCPServer::ResetChannel(uint uiS Line 1353  String LSCPServer::ResetChannel(uint uiS
1353  }  }
1354    
1355  /**  /**
1356     * Will be called by the parser to reset the whole sampler.
1357     */
1358    String LSCPServer::ResetSampler() {
1359        dmsg(2,("LSCPServer: ResetSampler()\n"));
1360        pSampler->Reset();
1361        LSCPResultSet result;
1362        return result.Produce();
1363    }
1364    
1365    /**
1366   * Will be called by the parser to subscribe a client (frontend) on the   * Will be called by the parser to subscribe a client (frontend) on the
1367   * server for receiving event messages.   * server for receiving event messages.
1368   */   */
1369  String LSCPServer::SubscribeNotification(uint UDPPort) {  String LSCPServer::SubscribeNotification(LSCPEvent::event_t type) {
1370      dmsg(2,("LSCPServer: SubscribeNotification(UDPPort=%d)\n", UDPPort));      dmsg(2,("LSCPServer: SubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1371      return "ERR:0:Not implemented yet.\r\n";      LSCPResultSet result;
1372        SubscriptionMutex.Lock();
1373        eventSubscriptions[type].push_back(currentSocket);
1374        SubscriptionMutex.Unlock();
1375        return result.Produce();
1376  }  }
1377    
1378  /**  /**
1379   * Will be called by the parser to unsubscribe a client on the server   * Will be called by the parser to unsubscribe a client on the server
1380   * for not receiving further event messages.   * for not receiving further event messages.
1381   */   */
1382  String LSCPServer::UnsubscribeNotification(String SessionID) {  String LSCPServer::UnsubscribeNotification(LSCPEvent::event_t type) {
1383      dmsg(2,("LSCPServer: UnsubscribeNotification(SessionID=%s)\n", SessionID.c_str()));      dmsg(2,("LSCPServer: UnsubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1384      return "ERR:0:Not implemented yet.\r\n";      LSCPResultSet result;
1385        SubscriptionMutex.Lock();
1386        eventSubscriptions[type].remove(currentSocket);
1387        SubscriptionMutex.Unlock();
1388        return result.Produce();
1389    }
1390    
1391    /**
1392     * Will be called by the parser to enable or disable echo mode; if echo
1393     * mode is enabled, all commands from the client will (immediately) be
1394     * echoed back to the client.
1395     */
1396    String LSCPServer::SetEcho(yyparse_param_t* pSession, double boolean_value) {
1397        dmsg(2,("LSCPServer: SetEcho(val=%f)\n", boolean_value));
1398        LSCPResultSet result;
1399        try {
1400            if      (boolean_value == 0) pSession->bVerbose = false;
1401            else if (boolean_value == 1) pSession->bVerbose = true;
1402            else throw LinuxSamplerException("Not a boolean value, must either be 0 or 1");
1403        }
1404        catch (LinuxSamplerException e) {
1405             result.Error(e);
1406        }
1407        return result.Produce();
1408    }
1409    
1410    // Instrument loader constructor.
1411    LSCPLoadInstrument::LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument)
1412        : Thread(false, 0, -4)
1413    {
1414        this->pEngine = pEngine;
1415        this->Filename = Filename;
1416        this->uiInstrument = uiInstrument;
1417    }
1418    
1419    // Instrument loader process.
1420    int LSCPLoadInstrument::Main()
1421    {
1422        try {
1423            pEngine->LoadInstrument(Filename.c_str(), uiInstrument);
1424        }
1425    
1426        catch (LinuxSamplerException e) {
1427            e.PrintMessage();
1428        }
1429    
1430        // Always re-enable the engine.
1431        pEngine->Enable();
1432    
1433        // FIXME: Shoot ourselves on the foot?
1434        delete this;
1435  }  }
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