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

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revision 401 by schoenebeck, Tue Feb 22 14:09:26 2005 UTC revision 793 by iliev, Wed Oct 26 09:34:38 2005 UTC
# Line 26  Line 26 
26  #include "lscpevent.h"  #include "lscpevent.h"
27  //#include "../common/global.h"  //#include "../common/global.h"
28    
29    #include <fcntl.h>
30    
31  #if HAVE_SQLITE3  #if HAVE_SQLITE3
32  # include "sqlite3.h"  # include "sqlite3.h"
33  #endif  #endif
34    
35  #include "../engines/gig/Engine.h"  #include "../engines/EngineFactory.h"
36    #include "../engines/EngineChannelFactory.h"
37  #include "../drivers/audio/AudioOutputDeviceFactory.h"  #include "../drivers/audio/AudioOutputDeviceFactory.h"
38  #include "../drivers/midi/MidiInputDeviceFactory.h"  #include "../drivers/midi/MidiInputDeviceFactory.h"
39    
# Line 58  Mutex LSCPServer::NotifyBufferMutex = Mu Line 61  Mutex LSCPServer::NotifyBufferMutex = Mu
61  Mutex LSCPServer::SubscriptionMutex = Mutex();  Mutex LSCPServer::SubscriptionMutex = Mutex();
62  Mutex LSCPServer::RTNotifyMutex = Mutex();  Mutex LSCPServer::RTNotifyMutex = Mutex();
63    
64  LSCPServer::LSCPServer(Sampler* pSampler) : Thread(true, false, 0, -4) {  LSCPServer::LSCPServer(Sampler* pSampler, long int addr, short int port) : Thread(true, false, 0, -4) {
65        SocketAddress.sin_family      = AF_INET;
66        SocketAddress.sin_addr.s_addr = addr;
67        SocketAddress.sin_port        = port;
68      this->pSampler = pSampler;      this->pSampler = pSampler;
69      LSCPEvent::RegisterEvent(LSCPEvent::event_channels, "CHANNELS");      LSCPEvent::RegisterEvent(LSCPEvent::event_channel_count, "CHANNEL_COUNT");
70      LSCPEvent::RegisterEvent(LSCPEvent::event_voice_count, "VOICE_COUNT");      LSCPEvent::RegisterEvent(LSCPEvent::event_voice_count, "VOICE_COUNT");
71      LSCPEvent::RegisterEvent(LSCPEvent::event_stream_count, "STREAM_COUNT");      LSCPEvent::RegisterEvent(LSCPEvent::event_stream_count, "STREAM_COUNT");
72      LSCPEvent::RegisterEvent(LSCPEvent::event_buffer_fill, "BUFFER_FILL");      LSCPEvent::RegisterEvent(LSCPEvent::event_buffer_fill, "BUFFER_FILL");
73      LSCPEvent::RegisterEvent(LSCPEvent::event_info, "INFO");      LSCPEvent::RegisterEvent(LSCPEvent::event_channel_info, "CHANNEL_INFO");
74      LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");      LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");
75        LSCPEvent::RegisterEvent(LSCPEvent::event_total_voice_count, "TOTAL_VOICE_COUNT");
76        hSocket = -1;
77    }
78    
79    LSCPServer::~LSCPServer() {
80        if (hSocket >= 0) close(hSocket);
81  }  }
82    
83  /**  /**
# Line 83  int LSCPServer::WaitUntilInitialized(lon Line 95  int LSCPServer::WaitUntilInitialized(lon
95  }  }
96    
97  int LSCPServer::Main() {  int LSCPServer::Main() {
98      int hSocket = socket(AF_INET, SOCK_STREAM, 0);      hSocket = socket(AF_INET, SOCK_STREAM, 0);
99      if (hSocket < 0) {      if (hSocket < 0) {
100          std::cerr << "LSCPServer: Could not create server socket." << std::endl;          std::cerr << "LSCPServer: Could not create server socket." << std::endl;
101          //return -1;          //return -1;
102          exit(EXIT_FAILURE);          exit(EXIT_FAILURE);
103      }      }
104    
     SocketAddress.sin_family      = AF_INET;  
     SocketAddress.sin_port        = htons(LSCP_PORT);  
     SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);  
   
105      if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {      if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
106          std::cerr << "LSCPServer: Could not bind server socket, retrying for " << ToString(LSCP_SERVER_BIND_TIMEOUT) << " seconds...";          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          for (int trial = 0; true; trial++) { // retry for LSCP_SERVER_BIND_TIMEOUT seconds
# Line 120  int LSCPServer::Main() { Line 128  int LSCPServer::Main() {
128      FD_SET(hSocket, &fdSet);      FD_SET(hSocket, &fdSet);
129      int maxSessions = hSocket;      int maxSessions = hSocket;
130    
131        timeval timeout;
132    
133      while (true) {      while (true) {
134          fd_set selectSet = fdSet;          // check if some engine channel's parameter / status changed, if so notify the respective LSCP event subscribers
135          int retval = select(maxSessions+1, &selectSet, NULL, NULL, NULL);          {
136                std::set<EngineChannel*> engineChannels = EngineChannelFactory::EngineChannelInstances();
137                std::set<EngineChannel*>::iterator itEngineChannel = engineChannels.begin();
138                std::set<EngineChannel*>::iterator itEnd           = engineChannels.end();
139                for (; itEngineChannel != itEnd; ++itEngineChannel) {
140                    if ((*itEngineChannel)->StatusChanged()) {
141                        SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_info, (*itEngineChannel)->iSamplerChannelIndex));
142                    }
143                }
144            }
145    
146            //Now let's deliver late notifies (if any)
147            NotifyBufferMutex.Lock();
148            for (std::map<int,String>::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) {
149                    send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), MSG_NOSIGNAL);
150                    bufferedNotifies.erase(iterNotify);
151            }
152            NotifyBufferMutex.Unlock();
153    
154            fd_set selectSet = fdSet;
155            timeout.tv_sec  = 0;
156            timeout.tv_usec = 100000;
157    
158            int retval = select(maxSessions+1, &selectSet, NULL, NULL, &timeout);
159    
160          if (retval == 0)          if (retval == 0)
161                  continue; //Nothing try again                  continue; //Nothing try again
162          if (retval == -1) {          if (retval == -1) {
# Line 166  int LSCPServer::Main() { Line 200  int LSCPServer::Main() {
200                                  int dummy; // just a temporary hack to fulfill the restart() function prototype                                  int dummy; // just a temporary hack to fulfill the restart() function prototype
201                                  restart(NULL, dummy); // restart the 'scanner'                                  restart(NULL, dummy); // restart the 'scanner'
202                                  currentSocket = (*iter).hSession;  //a hack                                  currentSocket = (*iter).hSession;  //a hack
203                                    dmsg(2,("LSCPServer: [%s]\n",bufferedCommands[currentSocket].c_str()));
204                                  if ((*iter).bVerbose) { // if echo mode enabled                                  if ((*iter).bVerbose) { // if echo mode enabled
205                                      AnswerClient(bufferedCommands[currentSocket]);                                      AnswerClient(bufferedCommands[currentSocket]);
206                                  }                                  }
# Line 181  int LSCPServer::Main() { Line 216  int LSCPServer::Main() {
216                          break;                          break;
217                  }                  }
218          }          }
   
         //Now let's deliver late notifies (if any)  
         NotifyBufferMutex.Lock();  
         for (std::map<int,String>::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) {  
                 send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), 0);  
                 bufferedNotifies.erase(iterNotify);  
         }  
         NotifyBufferMutex.Unlock();  
219      }      }
220  }  }
221    
# Line 235  void LSCPServer::SendLSCPNotify( LSCPEve Line 262  void LSCPServer::SendLSCPNotify( LSCPEve
262          while (true) {          while (true) {
263                  if (NotifyMutex.Trylock()) {                  if (NotifyMutex.Trylock()) {
264                          for(;iter != end; iter++)                          for(;iter != end; iter++)
265                                  send(*iter, notify.c_str(), notify.size(), 0);                                  send(*iter, notify.c_str(), notify.size(), MSG_NOSIGNAL);
266                          NotifyMutex.Unlock();                          NotifyMutex.Unlock();
267                          break;                          break;
268                  } else {                  } else {
# Line 344  void LSCPServer::AnswerClient(String Ret Line 371  void LSCPServer::AnswerClient(String Ret
371      dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));      dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));
372      if (currentSocket != -1) {      if (currentSocket != -1) {
373              NotifyMutex.Lock();              NotifyMutex.Lock();
374              send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);              send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), MSG_NOSIGNAL);
375              NotifyMutex.Unlock();              NotifyMutex.Unlock();
376      }      }
377  }  }
# Line 452  String LSCPServer::LoadInstrument(String Line 479  String LSCPServer::LoadInstrument(String
479      try {      try {
480          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
481          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
482          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
483          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel yet");
484          if (!pSamplerChannel->GetAudioOutputDevice())          if (!pSamplerChannel->GetAudioOutputDevice())
485              throw LinuxSamplerException("No audio output device connected to sampler channel");              throw LinuxSamplerException("No audio output device connected to sampler channel");
486          if (bBackground) {          if (bBackground) {
487              InstrumentLoader.StartNewLoad(Filename, uiInstrument, pEngine);              InstrumentLoader.StartNewLoad(Filename, uiInstrument, pEngineChannel);
488          }          }
489          else {          else {
490              // tell the engine which instrument to load              // tell the engine channel which instrument to load
491              pEngine->PrepareLoadInstrument(Filename.c_str(), uiInstrument);              pEngineChannel->PrepareLoadInstrument(Filename.c_str(), uiInstrument);
492              // actually start to load the instrument (blocks until completed)              // actually start to load the instrument (blocks until completed)
493              pEngine->LoadInstrument();              pEngineChannel->LoadInstrument();
494          }          }
495      }      }
496      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 473  String LSCPServer::LoadInstrument(String Line 500  String LSCPServer::LoadInstrument(String
500  }  }
501    
502  /**  /**
503   * Will be called by the parser to load and deploy an engine.   * Will be called by the parser to assign a sampler engine type to a
504     * sampler channel.
505   */   */
506  String LSCPServer::LoadEngine(String EngineName, uint uiSamplerChannel) {  String LSCPServer::SetEngineType(String EngineName, uint uiSamplerChannel) {
507      dmsg(2,("LSCPServer: LoadEngine(EngineName=%s,SamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel));      dmsg(2,("LSCPServer: SetEngineType(EngineName=%s,uiSamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel));
508      LSCPResultSet result;      LSCPResultSet result;
509      try {      try {
         Engine::type_t type;  
         if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig;  
         else throw LinuxSamplerException("Unknown engine type");  
510          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
511          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
512          LockRTNotify();          LockRTNotify();
513          pSamplerChannel->LoadEngine(type);          pSamplerChannel->SetEngineType(EngineName);
514            if(HasSoloChannel()) pSamplerChannel->GetEngineChannel()->SetMute(-1);
515          UnlockRTNotify();          UnlockRTNotify();
516      }      }
517      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 544  String LSCPServer::RemoveChannel(uint ui Line 570  String LSCPServer::RemoveChannel(uint ui
570  }  }
571    
572  /**  /**
573   * Will be called by the parser to get all available engines.   * Will be called by the parser to get the amount of all available engines.
574   */   */
575  String LSCPServer::GetAvailableEngines() {  String LSCPServer::GetAvailableEngines() {
576      dmsg(2,("LSCPServer: GetAvailableEngines()\n"));      dmsg(2,("LSCPServer: GetAvailableEngines()\n"));
577      LSCPResultSet result("GigEngine");      LSCPResultSet result("1");
578      return result.Produce();      return result.Produce();
579  }  }
580    
581  /**  /**
582   * Will be called by the parser to get descriptions for a particular engine.   * Will be called by the parser to get a list of all available engines.
583     */
584    String LSCPServer::ListAvailableEngines() {
585        dmsg(2,("LSCPServer: ListAvailableEngines()\n"));
586        LSCPResultSet result("\'GIG\'");
587        return result.Produce();
588    }
589    
590    /**
591     * Will be called by the parser to get descriptions for a particular
592     * sampler engine.
593   */   */
594  String LSCPServer::GetEngineInfo(String EngineName) {  String LSCPServer::GetEngineInfo(String EngineName) {
595      dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));      dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));
596      LSCPResultSet result;      LSCPResultSet result;
597      try {      try {
598          if ((EngineName == "GigEngine") || (EngineName == "gig")) {          Engine* pEngine = EngineFactory::Create(EngineName);
599              Engine* pEngine = new LinuxSampler::gig::Engine;          result.Add("DESCRIPTION", pEngine->Description());
600              result.Add("DESCRIPTION", pEngine->Description());          result.Add("VERSION",     pEngine->Version());
601              result.Add("VERSION",     pEngine->Version());          EngineFactory::Destroy(pEngine);
             delete pEngine;  
         }  
         else throw LinuxSamplerException("Unknown engine type");  
602      }      }
603      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
604           result.Error(e);           result.Error(e);
# Line 583  String LSCPServer::GetChannelInfo(uint u Line 616  String LSCPServer::GetChannelInfo(uint u
616      try {      try {
617          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
618          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
619          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
620    
621          //Defaults values          //Defaults values
622          String EngineName = "NONE";          String EngineName = "NONE";
# Line 594  String LSCPServer::GetChannelInfo(uint u Line 627  String LSCPServer::GetChannelInfo(uint u
627          int InstrumentStatus = -1;          int InstrumentStatus = -1;
628          int AudioOutputChannels = 0;          int AudioOutputChannels = 0;
629          String AudioRouting;          String AudioRouting;
630            int Mute = 0;
631            bool Solo = false;
632    
633          if (pEngine) {          if (pEngineChannel) {
634              EngineName =  pEngine->EngineName();              EngineName          = pEngineChannel->EngineName();
635              AudioOutputChannels = pEngine->Channels();              AudioOutputChannels = pEngineChannel->Channels();
636              Volume = pEngine->Volume();              Volume              = pEngineChannel->Volume();
637              InstrumentStatus = pEngine->InstrumentStatus();              InstrumentStatus    = pEngineChannel->InstrumentStatus();
638              InstrumentIndex = pEngine->InstrumentIndex();              InstrumentIndex     = pEngineChannel->InstrumentIndex();
639              if (InstrumentIndex != -1)              if (InstrumentIndex != -1) {
640              {                  InstrumentFileName = pEngineChannel->InstrumentFileName();
641                  InstrumentFileName = pEngine->InstrumentFileName();                  InstrumentName     = pEngineChannel->InstrumentName();
642                  InstrumentName = pEngine->InstrumentName();              }
643              }              for (int chan = 0; chan < pEngineChannel->Channels(); chan++) {
             for (int chan = 0; chan < pEngine->Channels(); chan++) {  
644                  if (AudioRouting != "") AudioRouting += ",";                  if (AudioRouting != "") AudioRouting += ",";
645                  AudioRouting += ToString(pEngine->OutputChannel(chan));                  AudioRouting += ToString(pEngineChannel->OutputChannel(chan));
646              }              }
647                Mute = pEngineChannel->GetMute();
648                Solo = pEngineChannel->GetSolo();
649          }          }
650    
651          result.Add("ENGINE_NAME", EngineName);          result.Add("ENGINE_NAME", EngineName);
# Line 622  String LSCPServer::GetChannelInfo(uint u Line 658  String LSCPServer::GetChannelInfo(uint u
658    
659          result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));          result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));
660          result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());          result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());
661          if (pSamplerChannel->GetMidiInputChannel() == MidiInputPort::midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");          if (pSamplerChannel->GetMidiInputChannel() == midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");
662          else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());          else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
663    
664          result.Add("INSTRUMENT_FILE", InstrumentFileName);          result.Add("INSTRUMENT_FILE", InstrumentFileName);
665          result.Add("INSTRUMENT_NR", InstrumentIndex);          result.Add("INSTRUMENT_NR", InstrumentIndex);
666          result.Add("INSTRUMENT_NAME", InstrumentName);          result.Add("INSTRUMENT_NAME", InstrumentName);
667          result.Add("INSTRUMENT_STATUS", InstrumentStatus);          result.Add("INSTRUMENT_STATUS", InstrumentStatus);
668            result.Add("MUTE", Mute == -1 ? "MUTED_BY_SOLO" : (Mute ? "true" : "false"));
669            result.Add("SOLO", Solo);
670      }      }
671      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
672           result.Error(e);           result.Error(e);
# Line 646  String LSCPServer::GetVoiceCount(uint ui Line 684  String LSCPServer::GetVoiceCount(uint ui
684      try {      try {
685          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
686          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
687          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
688          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine loaded on sampler channel");
689          result.Add(pEngine->VoiceCount());          if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
690            result.Add(pEngineChannel->GetEngine()->VoiceCount());
691      }      }
692      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
693           result.Error(e);           result.Error(e);
# Line 666  String LSCPServer::GetStreamCount(uint u Line 705  String LSCPServer::GetStreamCount(uint u
705      try {      try {
706          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
707          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
708          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
709          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
710          result.Add(pEngine->DiskStreamCount());          if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
711            result.Add(pEngineChannel->GetEngine()->DiskStreamCount());
712      }      }
713      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
714           result.Error(e);           result.Error(e);
# Line 686  String LSCPServer::GetBufferFill(fill_re Line 726  String LSCPServer::GetBufferFill(fill_re
726      try {      try {
727          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
728          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
729          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
730          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
731          if (!pEngine->DiskStreamSupported())          if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
732              result.Add("NA");          if (!pEngineChannel->GetEngine()->DiskStreamSupported()) result.Add("NA");
733          else {          else {
734              switch (ResponseType) {              switch (ResponseType) {
735                  case fill_response_bytes:                  case fill_response_bytes:
736                      result.Add(pEngine->DiskStreamBufferFillBytes());                      result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillBytes());
737                      break;                      break;
738                  case fill_response_percentage:                  case fill_response_percentage:
739                      result.Add(pEngine->DiskStreamBufferFillPercentage());                      result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillPercentage());
740                      break;                      break;
741                  default:                  default:
742                      throw LinuxSamplerException("Unknown fill response type");                      throw LinuxSamplerException("Unknown fill response type");
743              }              }
# Line 713  String LSCPServer::GetAvailableAudioOutp Line 753  String LSCPServer::GetAvailableAudioOutp
753      dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));      dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));
754      LSCPResultSet result;      LSCPResultSet result;
755      try {      try {
756            int n = AudioOutputDeviceFactory::AvailableDrivers().size();
757            result.Add(n);
758        }
759        catch (LinuxSamplerException e) {
760            result.Error(e);
761        }
762        return result.Produce();
763    }
764    
765    String LSCPServer::ListAvailableAudioOutputDrivers() {
766        dmsg(2,("LSCPServer: ListAvailableAudioOutputDrivers()\n"));
767        LSCPResultSet result;
768        try {
769          String s = AudioOutputDeviceFactory::AvailableDriversAsString();          String s = AudioOutputDeviceFactory::AvailableDriversAsString();
770          result.Add(s);          result.Add(s);
771      }      }
# Line 726  String LSCPServer::GetAvailableMidiInput Line 779  String LSCPServer::GetAvailableMidiInput
779      dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));      dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));
780      LSCPResultSet result;      LSCPResultSet result;
781      try {      try {
782            int n = MidiInputDeviceFactory::AvailableDrivers().size();
783            result.Add(n);
784        }
785        catch (LinuxSamplerException e) {
786            result.Error(e);
787        }
788        return result.Produce();
789    }
790    
791    String LSCPServer::ListAvailableMidiInputDrivers() {
792        dmsg(2,("LSCPServer: ListAvailableMidiInputDrivers()\n"));
793        LSCPResultSet result;
794        try {
795          String s = MidiInputDeviceFactory::AvailableDriversAsString();          String s = MidiInputDeviceFactory::AvailableDriversAsString();
796          result.Add(s);          result.Add(s);
797      }      }
# Line 1153  String LSCPServer::SetAudioOutputChannel Line 1219  String LSCPServer::SetAudioOutputChannel
1219      try {      try {
1220          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1221          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1222          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1223          if (!pEngine) throw LinuxSamplerException("No engine deployed on sampler channel " + ToString(uiSamplerChannel));          if (!pEngineChannel) throw LinuxSamplerException("No engine type yet assigned to sampler channel " + ToString(uiSamplerChannel));
1224          if (!pSamplerChannel->GetAudioOutputDevice()) throw LinuxSamplerException("No audio output device connected to sampler channel " + ToString(uiSamplerChannel));          if (!pSamplerChannel->GetAudioOutputDevice()) throw LinuxSamplerException("No audio output device connected to sampler channel " + ToString(uiSamplerChannel));
1225          pEngine->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel);          pEngineChannel->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel);
1226      }      }
1227      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1228           result.Error(e);           result.Error(e);
# Line 1238  String LSCPServer::SetMIDIInputChannel(u Line 1304  String LSCPServer::SetMIDIInputChannel(u
1304      try {      try {
1305          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1306          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1307          pSamplerChannel->SetMidiInputChannel((MidiInputPort::midi_chan_t) MIDIChannel);          pSamplerChannel->SetMidiInputChannel((midi_chan_t) MIDIChannel);
1308      }      }
1309      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1310           result.Error(e);           result.Error(e);
# Line 1315  String LSCPServer::SetMIDIInput(uint MID Line 1381  String LSCPServer::SetMIDIInput(uint MID
1381          std::map<uint, MidiInputDevice*> devices =  pSampler->GetMidiInputDevices();          std::map<uint, MidiInputDevice*> devices =  pSampler->GetMidiInputDevices();
1382          if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));          if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1383          MidiInputDevice* pDevice = devices[MIDIDeviceId];          MidiInputDevice* pDevice = devices[MIDIDeviceId];
1384          pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (MidiInputPort::midi_chan_t) MIDIChannel);          pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (midi_chan_t) MIDIChannel);
1385      }      }
1386      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1387           result.Error(e);           result.Error(e);
# Line 1333  String LSCPServer::SetVolume(double dVol Line 1399  String LSCPServer::SetVolume(double dVol
1399      try {      try {
1400          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1401          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1402          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1403          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1404          pEngine->Volume(dVolume);          pEngineChannel->Volume(dVolume);
1405      }      }
1406      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1407           result.Error(e);           result.Error(e);
# Line 1344  String LSCPServer::SetVolume(double dVol Line 1410  String LSCPServer::SetVolume(double dVol
1410  }  }
1411    
1412  /**  /**
1413     * Will be called by the parser to mute/unmute particular sampler channel.
1414     */
1415    String LSCPServer::SetChannelMute(bool bMute, uint uiSamplerChannel) {
1416        dmsg(2,("LSCPServer: SetChannelMute(bMute=%d,uiSamplerChannel=%d)\n",bMute,uiSamplerChannel));
1417        LSCPResultSet result;
1418        try {
1419            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1420            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1421    
1422            EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1423            if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1424    
1425            if(!bMute) pEngineChannel->SetMute((HasSoloChannel() && !pEngineChannel->GetSolo()) ? -1 : 0);
1426            else pEngineChannel->SetMute(1);
1427        } catch (LinuxSamplerException e) {
1428            result.Error(e);
1429        }
1430        return result.Produce();
1431    }
1432    
1433    /**
1434     * Will be called by the parser to solo particular sampler channel.
1435     */
1436    String LSCPServer::SetChannelSolo(bool bSolo, uint uiSamplerChannel) {
1437        dmsg(2,("LSCPServer: SetChannelSolo(bSolo=%d,uiSamplerChannel=%d)\n",bSolo,uiSamplerChannel));
1438        LSCPResultSet result;
1439        try {
1440            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1441            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1442    
1443            EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1444            if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1445    
1446            bool oldSolo = pEngineChannel->GetSolo();
1447            bool hadSoloChannel = HasSoloChannel();
1448            
1449            pEngineChannel->SetSolo(bSolo);
1450            
1451            if(!oldSolo && bSolo) {
1452                if(pEngineChannel->GetMute() == -1) pEngineChannel->SetMute(0);
1453                if(!hadSoloChannel) MuteNonSoloChannels();
1454            }
1455            
1456            if(oldSolo && !bSolo) {
1457                if(!HasSoloChannel()) UnmuteChannels();
1458                else if(!pEngineChannel->GetMute()) pEngineChannel->SetMute(-1);
1459            }
1460        } catch (LinuxSamplerException e) {
1461            result.Error(e);
1462        }
1463        return result.Produce();
1464    }
1465    
1466    /**
1467     * Determines whether there is at least one solo channel in the channel list.
1468     *
1469     * @returns true if there is at least one solo channel in the channel list,
1470     * false otherwise.
1471     */
1472    bool LSCPServer::HasSoloChannel() {
1473        std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
1474        std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
1475        for (; iter != channels.end(); iter++) {
1476            EngineChannel* c = iter->second->GetEngineChannel();
1477            if(c && c->GetSolo()) return true;
1478        }
1479    
1480        return false;
1481    }
1482    
1483    /**
1484     * Mutes all unmuted non-solo channels. Notice that the channels are muted
1485     * with -1 which indicates that they are muted because of the presence
1486     * of a solo channel(s). Channels muted with -1 will be automatically unmuted
1487     * when there are no solo channels left.
1488     */
1489    void LSCPServer::MuteNonSoloChannels() {
1490        dmsg(2,("LSCPServer: MuteNonSoloChannels()\n"));
1491        std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
1492        std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
1493        for (; iter != channels.end(); iter++) {
1494            EngineChannel* c = iter->second->GetEngineChannel();
1495            if(c && !c->GetSolo() && !c->GetMute()) c->SetMute(-1);
1496        }
1497    }
1498    
1499    /**
1500     * Unmutes all channels that are muted because of the presence
1501     * of a solo channel(s).
1502     */
1503    void  LSCPServer::UnmuteChannels() {
1504        dmsg(2,("LSCPServer: UnmuteChannels()\n"));
1505        std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
1506        std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
1507        for (; iter != channels.end(); iter++) {
1508            EngineChannel* c = iter->second->GetEngineChannel();
1509            if(c && c->GetMute() == -1) c->SetMute(0);
1510        }
1511    }
1512    
1513    /**
1514   * Will be called by the parser to reset a particular sampler channel.   * Will be called by the parser to reset a particular sampler channel.
1515   */   */
1516  String LSCPServer::ResetChannel(uint uiSamplerChannel) {  String LSCPServer::ResetChannel(uint uiSamplerChannel) {
# Line 1352  String LSCPServer::ResetChannel(uint uiS Line 1519  String LSCPServer::ResetChannel(uint uiS
1519      try {      try {
1520          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1521          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1522          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1523          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1524          pEngine->Reset();          pEngineChannel->Reset();
1525      }      }
1526      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1527           result.Error(e);           result.Error(e);
# Line 1372  String LSCPServer::ResetSampler() { Line 1539  String LSCPServer::ResetSampler() {
1539      return result.Produce();      return result.Produce();
1540  }  }
1541    
1542    /**
1543     * Will be called by the parser to return general informations about this
1544     * sampler.
1545     */
1546    String LSCPServer::GetServerInfo() {
1547        dmsg(2,("LSCPServer: GetServerInfo()\n"));
1548        LSCPResultSet result;
1549        result.Add("DESCRIPTION", "LinuxSampler - modular, streaming capable sampler");
1550        result.Add("VERSION", VERSION);
1551        result.Add("PROTOCOL_VERSION", "1.0");
1552        return result.Produce();
1553    }
1554    
1555    /**
1556     * Will be called by the parser to return the current number of all active voices.
1557     */
1558    String LSCPServer::GetTotalVoiceCount() {
1559        dmsg(2,("LSCPServer: GetTotalVoiceCount()\n"));
1560        LSCPResultSet result;
1561        result.Add(pSampler->GetVoiceCount());
1562        return result.Produce();
1563    }
1564    
1565    /**
1566     * Will be called by the parser to return the maximum number of voices.
1567     */
1568    String LSCPServer::GetTotalVoiceCountMax() {
1569        dmsg(2,("LSCPServer: GetTotalVoiceCountMax()\n"));
1570        LSCPResultSet result;
1571        result.Add(EngineFactory::EngineInstances().size() * CONFIG_MAX_VOICES);
1572        return result.Produce();
1573    }
1574    
1575  /**  /**
1576   * 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
1577   * server for receiving event messages.   * server for receiving event messages.
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