/[svn]/linuxsampler/trunk/src/network/lscpserver.cpp
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revision 227 by schoenebeck, Thu Aug 26 22:05:44 2004 UTC revision 836 by persson, Wed Feb 8 20:28:46 2006 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005 Christian Schoenebeck                              *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This library is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
10   *   the Free Software Foundation; either version 2 of the License, or     *   *   the Free Software Foundation; either version 2 of the License, or     *
11   *   (at your option) any later version.                                   *   *   (at your option) any later version.                                   *
12   *                                                                         *   *                                                                         *
13   *   This program is distributed in the hope that it will be useful,       *   *   This library is distributed in the hope that it will be useful,       *
14   *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *   *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
15   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
16   *   GNU General Public License for more details.                          *   *   GNU General Public License for more details.                          *
17   *                                                                         *   *                                                                         *
18   *   You should have received a copy of the GNU General Public License     *   *   You should have received a copy of the GNU General Public License     *
19   *   along with this program; if not, write to the Free Software           *   *   along with this library; if not, write to the Free Software           *
20   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
21   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
22   ***************************************************************************/   ***************************************************************************/
# Line 23  Line 24 
24  #include "lscpserver.h"  #include "lscpserver.h"
25  #include "lscpresultset.h"  #include "lscpresultset.h"
26  #include "lscpevent.h"  #include "lscpevent.h"
27    //#include "../common/global.h"
28    
29  #include "../engines/gig/Engine.h"  #include <fcntl.h>
30    
31    #if HAVE_SQLITE3
32    # include "sqlite3.h"
33    #endif
34    
35    #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 50  std::map< LSCPEvent::event_t, std::list< Line 59  std::map< LSCPEvent::event_t, std::list<
59  Mutex LSCPServer::NotifyMutex = Mutex();  Mutex LSCPServer::NotifyMutex = Mutex();
60  Mutex LSCPServer::NotifyBufferMutex = Mutex();  Mutex LSCPServer::NotifyBufferMutex = Mutex();
61  Mutex LSCPServer::SubscriptionMutex = Mutex();  Mutex LSCPServer::SubscriptionMutex = Mutex();
62    Mutex LSCPServer::RTNotifyMutex = Mutex();
63    
64  LSCPServer::LSCPServer(Sampler* pSampler) : Thread(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 76  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 113  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    #ifdef MSG_NOSIGNAL
150                    send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), MSG_NOSIGNAL);
151    #else
152                    send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), 0);
153    #endif
154            }
155            bufferedNotifies.clear();
156            NotifyBufferMutex.Unlock();
157    
158            fd_set selectSet = fdSet;
159            timeout.tv_sec  = 0;
160            timeout.tv_usec = 100000;
161    
162            int retval = select(maxSessions+1, &selectSet, NULL, NULL, &timeout);
163    
164          if (retval == 0)          if (retval == 0)
165                  continue; //Nothing try again                  continue; //Nothing try again
166          if (retval == -1) {          if (retval == -1) {
# Line 159  int LSCPServer::Main() { Line 204  int LSCPServer::Main() {
204                                  int dummy; // just a temporary hack to fulfill the restart() function prototype                                  int dummy; // just a temporary hack to fulfill the restart() function prototype
205                                  restart(NULL, dummy); // restart the 'scanner'                                  restart(NULL, dummy); // restart the 'scanner'
206                                  currentSocket = (*iter).hSession;  //a hack                                  currentSocket = (*iter).hSession;  //a hack
207                                    dmsg(2,("LSCPServer: [%s]\n",bufferedCommands[currentSocket].c_str()));
208                                  if ((*iter).bVerbose) { // if echo mode enabled                                  if ((*iter).bVerbose) { // if echo mode enabled
209                                      AnswerClient(bufferedCommands[currentSocket]);                                      AnswerClient(bufferedCommands[currentSocket]);
210                                  }                                  }
# Line 174  int LSCPServer::Main() { Line 220  int LSCPServer::Main() {
220                          break;                          break;
221                  }                  }
222          }          }
   
         //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();  
223      }      }
224  }  }
225    
# Line 203  void LSCPServer::CloseConnection( std::v Line 241  void LSCPServer::CloseConnection( std::v
241          NotifyMutex.Unlock();          NotifyMutex.Unlock();
242  }  }
243    
244    int LSCPServer::EventSubscribers( std::list<LSCPEvent::event_t> events ) {
245            int subs = 0;
246            SubscriptionMutex.Lock();
247            for( std::list<LSCPEvent::event_t>::iterator iter = events.begin();
248                            iter != events.end(); iter++)
249            {
250                    subs += eventSubscriptions.count(*iter);
251            }
252            SubscriptionMutex.Unlock();
253            return subs;
254    }
255    
256  void LSCPServer::SendLSCPNotify( LSCPEvent event ) {  void LSCPServer::SendLSCPNotify( LSCPEvent event ) {
257          SubscriptionMutex.Lock();          SubscriptionMutex.Lock();
258          if (eventSubscriptions.count(event.GetType()) == 0) {          if (eventSubscriptions.count(event.GetType()) == 0) {
# Line 216  void LSCPServer::SendLSCPNotify( LSCPEve Line 266  void LSCPServer::SendLSCPNotify( LSCPEve
266          while (true) {          while (true) {
267                  if (NotifyMutex.Trylock()) {                  if (NotifyMutex.Trylock()) {
268                          for(;iter != end; iter++)                          for(;iter != end; iter++)
269    #ifdef MSG_NOSIGNAL
270                                    send(*iter, notify.c_str(), notify.size(), MSG_NOSIGNAL);
271    #else
272                                  send(*iter, notify.c_str(), notify.size(), 0);                                  send(*iter, notify.c_str(), notify.size(), 0);
273    #endif
274                          NotifyMutex.Unlock();                          NotifyMutex.Unlock();
275                          break;                          break;
276                  } else {                  } else {
# Line 325  void LSCPServer::AnswerClient(String Ret Line 379  void LSCPServer::AnswerClient(String Ret
379      dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));      dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));
380      if (currentSocket != -1) {      if (currentSocket != -1) {
381              NotifyMutex.Lock();              NotifyMutex.Lock();
382    #ifdef MSG_NOSIGNAL
383                send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), MSG_NOSIGNAL);
384    #else
385              send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);              send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);
386    #endif
387              NotifyMutex.Unlock();              NotifyMutex.Unlock();
388      }      }
389  }  }
# Line 432  String LSCPServer::LoadInstrument(String Line 490  String LSCPServer::LoadInstrument(String
490      LSCPResultSet result;      LSCPResultSet result;
491      try {      try {
492          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
493          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
494          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
495          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel yet");
496          if (!pSamplerChannel->GetAudioOutputDevice())          if (!pSamplerChannel->GetAudioOutputDevice())
497              throw LinuxSamplerException("No audio output device on channel");              throw LinuxSamplerException("No audio output device connected to sampler channel");
498          if (bBackground) {          if (bBackground) {
499              LSCPLoadInstrument *pLoadInstrument = new LSCPLoadInstrument(pEngine, Filename.c_str(), uiInstrument);              InstrumentLoader.StartNewLoad(Filename, uiInstrument, pEngineChannel);
500              pLoadInstrument->StartThread();          }
501            else {
502                // tell the engine channel which instrument to load
503                pEngineChannel->PrepareLoadInstrument(Filename.c_str(), uiInstrument);
504                // actually start to load the instrument (blocks until completed)
505                pEngineChannel->LoadInstrument();
506          }          }
         else pEngine->LoadInstrument(Filename.c_str(), uiInstrument);  
507      }      }
508      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
509           result.Error(e);           result.Error(e);
# Line 450  String LSCPServer::LoadInstrument(String Line 512  String LSCPServer::LoadInstrument(String
512  }  }
513    
514  /**  /**
515   * 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
516     * sampler channel.
517   */   */
518  String LSCPServer::LoadEngine(String EngineName, uint uiSamplerChannel) {  String LSCPServer::SetEngineType(String EngineName, uint uiSamplerChannel) {
519      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));
520      LSCPResultSet result;      LSCPResultSet result;
521      try {      try {
         Engine::type_t type;  
         if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig;  
         else throw LinuxSamplerException("Unknown engine type");  
522          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
523          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
524          pSamplerChannel->LoadEngine(type);          LockRTNotify();
525            pSamplerChannel->SetEngineType(EngineName);
526            if(HasSoloChannel()) pSamplerChannel->GetEngineChannel()->SetMute(-1);
527            UnlockRTNotify();
528      }      }
529      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
530           result.Error(e);           result.Error(e);
# Line 512  String LSCPServer::AddChannel() { Line 575  String LSCPServer::AddChannel() {
575  String LSCPServer::RemoveChannel(uint uiSamplerChannel) {  String LSCPServer::RemoveChannel(uint uiSamplerChannel) {
576      dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));      dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));
577      LSCPResultSet result;      LSCPResultSet result;
578        LockRTNotify();
579      pSampler->RemoveSamplerChannel(uiSamplerChannel);      pSampler->RemoveSamplerChannel(uiSamplerChannel);
580        UnlockRTNotify();
581      return result.Produce();      return result.Produce();
582  }  }
583    
584  /**  /**
585   * 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.
586   */   */
587  String LSCPServer::GetAvailableEngines() {  String LSCPServer::GetAvailableEngines() {
588      dmsg(2,("LSCPServer: GetAvailableEngines()\n"));      dmsg(2,("LSCPServer: GetAvailableEngines()\n"));
589      LSCPResultSet result("GigEngine");      LSCPResultSet result("1");
590        return result.Produce();
591    }
592    
593    /**
594     * Will be called by the parser to get a list of all available engines.
595     */
596    String LSCPServer::ListAvailableEngines() {
597        dmsg(2,("LSCPServer: ListAvailableEngines()\n"));
598        LSCPResultSet result("\'GIG\'");
599      return result.Produce();      return result.Produce();
600  }  }
601    
602  /**  /**
603   * Will be called by the parser to get descriptions for a particular engine.   * Will be called by the parser to get descriptions for a particular
604     * sampler engine.
605   */   */
606  String LSCPServer::GetEngineInfo(String EngineName) {  String LSCPServer::GetEngineInfo(String EngineName) {
607      dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));      dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));
608      LSCPResultSet result;      LSCPResultSet result;
609      try {      try {
610          if ((EngineName == "GigEngine") || (EngineName == "gig")) {          Engine* pEngine = EngineFactory::Create(EngineName);
611              Engine* pEngine = new LinuxSampler::gig::Engine;          result.Add("DESCRIPTION", pEngine->Description());
612              result.Add("DESCRIPTION", pEngine->Description());          result.Add("VERSION",     pEngine->Version());
613              result.Add("VERSION",     pEngine->Version());          EngineFactory::Destroy(pEngine);
             delete pEngine;  
         }  
         else throw LinuxSamplerException("Unknown engine type");  
614      }      }
615      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
616           result.Error(e);           result.Error(e);
# Line 555  String LSCPServer::GetChannelInfo(uint u Line 627  String LSCPServer::GetChannelInfo(uint u
627      LSCPResultSet result;      LSCPResultSet result;
628      try {      try {
629          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
630          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
631          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
632    
633          //Defaults values          //Defaults values
634          String EngineName = "NONE";          String EngineName = "NONE";
635          float Volume = 0.0f;          float Volume = 0.0f;
636          String InstrumentFileName = "NONE";          String InstrumentFileName = "NONE";
637            String InstrumentName = "NONE";
638          int InstrumentIndex = -1;          int InstrumentIndex = -1;
639          int InstrumentStatus = -1;          int InstrumentStatus = -1;
640          int AudioOutputChannels = 0;          int AudioOutputChannels = 0;
641          String AudioRouting;          String AudioRouting;
642            int Mute = 0;
643            bool Solo = false;
644    
645          if (pEngine) {          if (pEngineChannel) {
646              EngineName =  pEngine->EngineName();              EngineName          = pEngineChannel->EngineName();
647              AudioOutputChannels = pEngine->Channels();              AudioOutputChannels = pEngineChannel->Channels();
648              Volume = pEngine->Volume();              Volume              = pEngineChannel->Volume();
649              InstrumentStatus = pEngine->InstrumentStatus();              InstrumentStatus    = pEngineChannel->InstrumentStatus();
650              InstrumentIndex = pEngine->InstrumentIndex();              InstrumentIndex     = pEngineChannel->InstrumentIndex();
651              if (InstrumentIndex != -1)              if (InstrumentIndex != -1) {
652                  InstrumentFileName = pEngine->InstrumentFileName();                  InstrumentFileName = pEngineChannel->InstrumentFileName();
653              for (int chan = 0; chan < pEngine->Channels(); chan++) {                  InstrumentName     = pEngineChannel->InstrumentName();
654                }
655                for (int chan = 0; chan < pEngineChannel->Channels(); chan++) {
656                  if (AudioRouting != "") AudioRouting += ",";                  if (AudioRouting != "") AudioRouting += ",";
657                  AudioRouting += ToString(pEngine->OutputChannel(chan));                  AudioRouting += ToString(pEngineChannel->OutputChannel(chan));
658              }              }
659                Mute = pEngineChannel->GetMute();
660                Solo = pEngineChannel->GetSolo();
661          }          }
662    
663          result.Add("ENGINE_NAME", EngineName);          result.Add("ENGINE_NAME", EngineName);
# Line 591  String LSCPServer::GetChannelInfo(uint u Line 670  String LSCPServer::GetChannelInfo(uint u
670    
671          result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));          result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));
672          result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());          result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());
673          if (pSamplerChannel->GetMidiInputChannel()) result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());          if (pSamplerChannel->GetMidiInputChannel() == midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");
674          else                                        result.Add("MIDI_INPUT_CHANNEL", "ALL");          else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
675    
676          result.Add("INSTRUMENT_FILE", InstrumentFileName);          result.Add("INSTRUMENT_FILE", InstrumentFileName);
677          result.Add("INSTRUMENT_NR", InstrumentIndex);          result.Add("INSTRUMENT_NR", InstrumentIndex);
678            result.Add("INSTRUMENT_NAME", InstrumentName);
679          result.Add("INSTRUMENT_STATUS", InstrumentStatus);          result.Add("INSTRUMENT_STATUS", InstrumentStatus);
680            result.Add("MUTE", Mute == -1 ? "MUTED_BY_SOLO" : (Mute ? "true" : "false"));
681            result.Add("SOLO", Solo);
682      }      }
683      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
684           result.Error(e);           result.Error(e);
# Line 613  String LSCPServer::GetVoiceCount(uint ui Line 695  String LSCPServer::GetVoiceCount(uint ui
695      LSCPResultSet result;      LSCPResultSet result;
696      try {      try {
697          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
698          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
699          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
700          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine loaded on sampler channel");
701          result.Add(pEngine->VoiceCount());          if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
702            result.Add(pEngineChannel->GetEngine()->VoiceCount());
703      }      }
704      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
705           result.Error(e);           result.Error(e);
# Line 633  String LSCPServer::GetStreamCount(uint u Line 716  String LSCPServer::GetStreamCount(uint u
716      LSCPResultSet result;      LSCPResultSet result;
717      try {      try {
718          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
719          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
720          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
721          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
722          result.Add(pEngine->DiskStreamCount());          if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
723            result.Add(pEngineChannel->GetEngine()->DiskStreamCount());
724      }      }
725      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
726           result.Error(e);           result.Error(e);
# Line 653  String LSCPServer::GetBufferFill(fill_re Line 737  String LSCPServer::GetBufferFill(fill_re
737      LSCPResultSet result;      LSCPResultSet result;
738      try {      try {
739          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
740          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
741          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
742          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
743          if (!pEngine->DiskStreamSupported())          if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel");
744              result.Add("NA");          if (!pEngineChannel->GetEngine()->DiskStreamSupported()) result.Add("NA");
745          else {          else {
746              switch (ResponseType) {              switch (ResponseType) {
747                  case fill_response_bytes:                  case fill_response_bytes:
748                      result.Add(pEngine->DiskStreamBufferFillBytes());                      result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillBytes());
749                      break;                      break;
750                  case fill_response_percentage:                  case fill_response_percentage:
751                      result.Add(pEngine->DiskStreamBufferFillPercentage());                      result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillPercentage());
752                      break;                      break;
753                  default:                  default:
754                      throw LinuxSamplerException("Unknown fill response type");                      throw LinuxSamplerException("Unknown fill response type");
755              }              }
# Line 681  String LSCPServer::GetAvailableAudioOutp Line 765  String LSCPServer::GetAvailableAudioOutp
765      dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));      dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));
766      LSCPResultSet result;      LSCPResultSet result;
767      try {      try {
768            int n = AudioOutputDeviceFactory::AvailableDrivers().size();
769            result.Add(n);
770        }
771        catch (LinuxSamplerException e) {
772            result.Error(e);
773        }
774        return result.Produce();
775    }
776    
777    String LSCPServer::ListAvailableAudioOutputDrivers() {
778        dmsg(2,("LSCPServer: ListAvailableAudioOutputDrivers()\n"));
779        LSCPResultSet result;
780        try {
781          String s = AudioOutputDeviceFactory::AvailableDriversAsString();          String s = AudioOutputDeviceFactory::AvailableDriversAsString();
782          result.Add(s);          result.Add(s);
783      }      }
# Line 694  String LSCPServer::GetAvailableMidiInput Line 791  String LSCPServer::GetAvailableMidiInput
791      dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));      dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));
792      LSCPResultSet result;      LSCPResultSet result;
793      try {      try {
794            int n = MidiInputDeviceFactory::AvailableDrivers().size();
795            result.Add(n);
796        }
797        catch (LinuxSamplerException e) {
798            result.Error(e);
799        }
800        return result.Produce();
801    }
802    
803    String LSCPServer::ListAvailableMidiInputDrivers() {
804        dmsg(2,("LSCPServer: ListAvailableMidiInputDrivers()\n"));
805        LSCPResultSet result;
806        try {
807          String s = MidiInputDeviceFactory::AvailableDriversAsString();          String s = MidiInputDeviceFactory::AvailableDriversAsString();
808          result.Add(s);          result.Add(s);
809      }      }
# Line 945  String LSCPServer::GetAudioOutputChannel Line 1055  String LSCPServer::GetAudioOutputChannel
1055    
1056          // get audio channel          // get audio channel
1057          AudioChannel* pChannel = pDevice->Channel(ChannelId);          AudioChannel* pChannel = pDevice->Channel(ChannelId);
1058          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) + ".");
1059    
1060          // return the values of all audio channel parameters          // return the values of all audio channel parameters
1061          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
# Line 1004  String LSCPServer::GetAudioOutputChannel Line 1114  String LSCPServer::GetAudioOutputChannel
1114    
1115          // get audio channel          // get audio channel
1116          AudioChannel* pChannel = pDevice->Channel(ChannelId);          AudioChannel* pChannel = pDevice->Channel(ChannelId);
1117          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) + ".");
1118    
1119          // get desired audio channel parameter          // get desired audio channel parameter
1120          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
# Line 1037  String LSCPServer::SetAudioOutputChannel Line 1147  String LSCPServer::SetAudioOutputChannel
1147    
1148          // get audio channel          // get audio channel
1149          AudioChannel* pChannel = pDevice->Channel(ChannelId);          AudioChannel* pChannel = pDevice->Channel(ChannelId);
1150          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) + ".");
1151    
1152          // get desired audio channel parameter          // get desired audio channel parameter
1153          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
# Line 1120  String LSCPServer::SetAudioOutputChannel Line 1230  String LSCPServer::SetAudioOutputChannel
1230      LSCPResultSet result;      LSCPResultSet result;
1231      try {      try {
1232          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1233          if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1234          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1235          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));
1236          pEngine->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel);          if (!pSamplerChannel->GetAudioOutputDevice()) throw LinuxSamplerException("No audio output device connected to sampler channel " + ToString(uiSamplerChannel));
1237            pEngineChannel->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel);
1238      }      }
1239      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1240           result.Error(e);           result.Error(e);
# Line 1136  String LSCPServer::SetAudioOutputDevice( Line 1247  String LSCPServer::SetAudioOutputDevice(
1247      LSCPResultSet result;      LSCPResultSet result;
1248      try {      try {
1249          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1250          if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1251          std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1252          if (!devices.count(AudioDeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId));          if (!devices.count(AudioDeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId));
1253          AudioOutputDevice* pDevice = devices[AudioDeviceId];          AudioOutputDevice* pDevice = devices[AudioDeviceId];
# Line 1153  String LSCPServer::SetAudioOutputType(St Line 1264  String LSCPServer::SetAudioOutputType(St
1264      LSCPResultSet result;      LSCPResultSet result;
1265      try {      try {
1266          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1267          if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1268          // Driver type name aliasing...          // Driver type name aliasing...
1269          if (AudioOutputDriver == "Alsa") AudioOutputDriver = "ALSA";          if (AudioOutputDriver == "Alsa") AudioOutputDriver = "ALSA";
1270          if (AudioOutputDriver == "Jack") AudioOutputDriver = "JACK";          if (AudioOutputDriver == "Jack") AudioOutputDriver = "JACK";
# Line 1190  String LSCPServer::SetMIDIInputPort(uint Line 1301  String LSCPServer::SetMIDIInputPort(uint
1301      LSCPResultSet result;      LSCPResultSet result;
1302      try {      try {
1303          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1304          if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1305          pSamplerChannel->SetMidiInputPort(MIDIPort);          pSamplerChannel->SetMidiInputPort(MIDIPort);
1306      }      }
1307      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 1204  String LSCPServer::SetMIDIInputChannel(u Line 1315  String LSCPServer::SetMIDIInputChannel(u
1315      LSCPResultSet result;      LSCPResultSet result;
1316      try {      try {
1317          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1318          if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1319          pSamplerChannel->SetMidiInputChannel((MidiInputPort::midi_chan_t) MIDIChannel);          pSamplerChannel->SetMidiInputChannel((midi_chan_t) MIDIChannel);
1320      }      }
1321      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1322           result.Error(e);           result.Error(e);
# Line 1218  String LSCPServer::SetMIDIInputDevice(ui Line 1329  String LSCPServer::SetMIDIInputDevice(ui
1329      LSCPResultSet result;      LSCPResultSet result;
1330      try {      try {
1331          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1332          if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1333          std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();          std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1334          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));
1335          MidiInputDevice* pDevice = devices[MIDIDeviceId];          MidiInputDevice* pDevice = devices[MIDIDeviceId];
# Line 1235  String LSCPServer::SetMIDIInputType(Stri Line 1346  String LSCPServer::SetMIDIInputType(Stri
1346      LSCPResultSet result;      LSCPResultSet result;
1347      try {      try {
1348          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1349          if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1350          // Driver type name aliasing...          // Driver type name aliasing...
1351          if (MidiInputDriver == "Alsa") MidiInputDriver = "ALSA";          if (MidiInputDriver == "Alsa") MidiInputDriver = "ALSA";
1352          // Check if there's one MIDI input device already created          // Check if there's one MIDI input device already created
# Line 1278  String LSCPServer::SetMIDIInput(uint MID Line 1389  String LSCPServer::SetMIDIInput(uint MID
1389      LSCPResultSet result;      LSCPResultSet result;
1390      try {      try {
1391          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1392          if (!pSamplerChannel) throw LinuxSamplerException("Invalid channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1393          std::map<uint, MidiInputDevice*> devices =  pSampler->GetMidiInputDevices();          std::map<uint, MidiInputDevice*> devices =  pSampler->GetMidiInputDevices();
1394          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));
1395          MidiInputDevice* pDevice = devices[MIDIDeviceId];          MidiInputDevice* pDevice = devices[MIDIDeviceId];
1396          pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (MidiInputPort::midi_chan_t) MIDIChannel);          pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (midi_chan_t) MIDIChannel);
1397      }      }
1398      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1399           result.Error(e);           result.Error(e);
# Line 1299  String LSCPServer::SetVolume(double dVol Line 1410  String LSCPServer::SetVolume(double dVol
1410      LSCPResultSet result;      LSCPResultSet result;
1411      try {      try {
1412          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1413          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1414          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1415          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1416          pEngine->Volume(dVolume);          pEngineChannel->Volume(dVolume);
1417      }      }
1418      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1419           result.Error(e);           result.Error(e);
# Line 1311  String LSCPServer::SetVolume(double dVol Line 1422  String LSCPServer::SetVolume(double dVol
1422  }  }
1423    
1424  /**  /**
1425     * Will be called by the parser to mute/unmute particular sampler channel.
1426     */
1427    String LSCPServer::SetChannelMute(bool bMute, uint uiSamplerChannel) {
1428        dmsg(2,("LSCPServer: SetChannelMute(bMute=%d,uiSamplerChannel=%d)\n",bMute,uiSamplerChannel));
1429        LSCPResultSet result;
1430        try {
1431            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1432            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1433    
1434            EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1435            if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1436    
1437            if(!bMute) pEngineChannel->SetMute((HasSoloChannel() && !pEngineChannel->GetSolo()) ? -1 : 0);
1438            else pEngineChannel->SetMute(1);
1439        } catch (LinuxSamplerException e) {
1440            result.Error(e);
1441        }
1442        return result.Produce();
1443    }
1444    
1445    /**
1446     * Will be called by the parser to solo particular sampler channel.
1447     */
1448    String LSCPServer::SetChannelSolo(bool bSolo, uint uiSamplerChannel) {
1449        dmsg(2,("LSCPServer: SetChannelSolo(bSolo=%d,uiSamplerChannel=%d)\n",bSolo,uiSamplerChannel));
1450        LSCPResultSet result;
1451        try {
1452            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1453            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1454    
1455            EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1456            if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1457    
1458            bool oldSolo = pEngineChannel->GetSolo();
1459            bool hadSoloChannel = HasSoloChannel();
1460            
1461            pEngineChannel->SetSolo(bSolo);
1462            
1463            if(!oldSolo && bSolo) {
1464                if(pEngineChannel->GetMute() == -1) pEngineChannel->SetMute(0);
1465                if(!hadSoloChannel) MuteNonSoloChannels();
1466            }
1467            
1468            if(oldSolo && !bSolo) {
1469                if(!HasSoloChannel()) UnmuteChannels();
1470                else if(!pEngineChannel->GetMute()) pEngineChannel->SetMute(-1);
1471            }
1472        } catch (LinuxSamplerException e) {
1473            result.Error(e);
1474        }
1475        return result.Produce();
1476    }
1477    
1478    /**
1479     * Determines whether there is at least one solo channel in the channel list.
1480     *
1481     * @returns true if there is at least one solo channel in the channel list,
1482     * false otherwise.
1483     */
1484    bool LSCPServer::HasSoloChannel() {
1485        std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
1486        std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
1487        for (; iter != channels.end(); iter++) {
1488            EngineChannel* c = iter->second->GetEngineChannel();
1489            if(c && c->GetSolo()) return true;
1490        }
1491    
1492        return false;
1493    }
1494    
1495    /**
1496     * Mutes all unmuted non-solo channels. Notice that the channels are muted
1497     * with -1 which indicates that they are muted because of the presence
1498     * of a solo channel(s). Channels muted with -1 will be automatically unmuted
1499     * when there are no solo channels left.
1500     */
1501    void LSCPServer::MuteNonSoloChannels() {
1502        dmsg(2,("LSCPServer: MuteNonSoloChannels()\n"));
1503        std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
1504        std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
1505        for (; iter != channels.end(); iter++) {
1506            EngineChannel* c = iter->second->GetEngineChannel();
1507            if(c && !c->GetSolo() && !c->GetMute()) c->SetMute(-1);
1508        }
1509    }
1510    
1511    /**
1512     * Unmutes all channels that are muted because of the presence
1513     * of a solo channel(s).
1514     */
1515    void  LSCPServer::UnmuteChannels() {
1516        dmsg(2,("LSCPServer: UnmuteChannels()\n"));
1517        std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
1518        std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
1519        for (; iter != channels.end(); iter++) {
1520            EngineChannel* c = iter->second->GetEngineChannel();
1521            if(c && c->GetMute() == -1) c->SetMute(0);
1522        }
1523    }
1524    
1525    /**
1526   * Will be called by the parser to reset a particular sampler channel.   * Will be called by the parser to reset a particular sampler channel.
1527   */   */
1528  String LSCPServer::ResetChannel(uint uiSamplerChannel) {  String LSCPServer::ResetChannel(uint uiSamplerChannel) {
# Line 1318  String LSCPServer::ResetChannel(uint uiS Line 1530  String LSCPServer::ResetChannel(uint uiS
1530      LSCPResultSet result;      LSCPResultSet result;
1531      try {      try {
1532          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1533          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1534          Engine* pEngine = pSamplerChannel->GetEngine();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
1535          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel");
1536          pEngine->Reset();          pEngineChannel->Reset();
1537      }      }
1538      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1539           result.Error(e);           result.Error(e);
# Line 1340  String LSCPServer::ResetSampler() { Line 1552  String LSCPServer::ResetSampler() {
1552  }  }
1553    
1554  /**  /**
1555     * Will be called by the parser to return general informations about this
1556     * sampler.
1557     */
1558    String LSCPServer::GetServerInfo() {
1559        dmsg(2,("LSCPServer: GetServerInfo()\n"));
1560        LSCPResultSet result;
1561        result.Add("DESCRIPTION", "LinuxSampler - modular, streaming capable sampler");
1562        result.Add("VERSION", VERSION);
1563        result.Add("PROTOCOL_VERSION", "1.0");
1564        return result.Produce();
1565    }
1566    
1567    /**
1568     * Will be called by the parser to return the current number of all active voices.
1569     */
1570    String LSCPServer::GetTotalVoiceCount() {
1571        dmsg(2,("LSCPServer: GetTotalVoiceCount()\n"));
1572        LSCPResultSet result;
1573        result.Add(pSampler->GetVoiceCount());
1574        return result.Produce();
1575    }
1576    
1577    /**
1578     * Will be called by the parser to return the maximum number of voices.
1579     */
1580    String LSCPServer::GetTotalVoiceCountMax() {
1581        dmsg(2,("LSCPServer: GetTotalVoiceCountMax()\n"));
1582        LSCPResultSet result;
1583        result.Add(EngineFactory::EngineInstances().size() * CONFIG_MAX_VOICES);
1584        return result.Produce();
1585    }
1586    
1587    /**
1588   * 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
1589   * server for receiving event messages.   * server for receiving event messages.
1590   */   */
# Line 1365  String LSCPServer::UnsubscribeNotificati Line 1610  String LSCPServer::UnsubscribeNotificati
1610      return result.Produce();      return result.Produce();
1611  }  }
1612    
1613    static int select_callback(void * lscpResultSet, int argc,
1614                            char **argv, char **azColName)
1615    {
1616        LSCPResultSet* resultSet = (LSCPResultSet*) lscpResultSet;
1617        resultSet->Add(argc, argv);
1618        return 0;
1619    }
1620    
1621    String LSCPServer::QueryDatabase(String query) {
1622        LSCPResultSet result;
1623    #if HAVE_SQLITE3
1624        char* zErrMsg = NULL;
1625        sqlite3 *db;
1626        String selectStr = "SELECT " + query;
1627    
1628        int rc = sqlite3_open("linuxsampler.db", &db);
1629        if (rc == SQLITE_OK)
1630        {
1631                rc = sqlite3_exec(db, selectStr.c_str(), select_callback, &result, &zErrMsg);
1632        }
1633        if ( rc != SQLITE_OK )
1634        {
1635                result.Error(String(zErrMsg), rc);
1636        }
1637        sqlite3_close(db);
1638    #else
1639        result.Error(String("SQLITE3 was not installed when linuxsampler was built. SELECT statement is not available."), 0);
1640    #endif
1641        return result.Produce();
1642    }
1643    
1644  /**  /**
1645   * Will be called by the parser to enable or disable echo mode; if echo   * Will be called by the parser to enable or disable echo mode; if echo
1646   * mode is enabled, all commands from the client will (immediately) be   * mode is enabled, all commands from the client will (immediately) be
# Line 1383  String LSCPServer::SetEcho(yyparse_param Line 1659  String LSCPServer::SetEcho(yyparse_param
1659      }      }
1660      return result.Produce();      return result.Produce();
1661  }  }
   
 // Instrument loader constructor.  
 LSCPLoadInstrument::LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument)  
     : Thread(false, 0, -4)  
 {  
     this->pEngine = pEngine;  
     this->Filename = Filename;  
     this->uiInstrument = uiInstrument;  
 }  
   
 // Instrument loader process.  
 int LSCPLoadInstrument::Main()  
 {  
     try {  
         pEngine->LoadInstrument(Filename.c_str(), uiInstrument);  
     }  
   
     catch (LinuxSamplerException e) {  
         e.PrintMessage();  
     }  
   
     // Always re-enable the engine.  
     pEngine->Enable();  
   
     // FIXME: Shoot ourselves on the foot?  
     delete this;  
 }  
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