/[svn]/linuxsampler/trunk/src/drivers/midi/MidiInputPort.cpp
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Diff of /linuxsampler/trunk/src/drivers/midi/MidiInputPort.cpp

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revision 551 by schoenebeck, Tue May 17 18:16:54 2005 UTC revision 947 by schoenebeck, Mon Nov 27 21:34:55 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                              *   *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program 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  *
# Line 23  Line 23 
23    
24  #include "MidiInputPort.h"  #include "MidiInputPort.h"
25    
26    #include "MidiInstrumentMapper.h"
27  #include "../../Sampler.h"  #include "../../Sampler.h"
28    #include "../../engines/EngineFactory.h"
29    
30  namespace LinuxSampler {  namespace LinuxSampler {
31    
# Line 50  namespace LinuxSampler { Line 52  namespace LinuxSampler {
52          return std::vector<String>();          return std::vector<String>();
53      }      }
54    
55      void MidiInputPort::ParameterName::OnSetValue(String s) throw (LinuxSamplerException) {      void MidiInputPort::ParameterName::OnSetValue(String s) throw (Exception) {
56          return; /* FIXME: Nothing to do here */          return; /* FIXME: Nothing to do here */
57      }      }
58    
# Line 62  namespace LinuxSampler { Line 64  namespace LinuxSampler {
64      MidiInputPort::~MidiInputPort() {      MidiInputPort::~MidiInputPort() {
65          std::map<String,DeviceRuntimeParameter*>::iterator iter = Parameters.begin();          std::map<String,DeviceRuntimeParameter*>::iterator iter = Parameters.begin();
66          while (iter != Parameters.end()) {          while (iter != Parameters.end()) {
             Parameters.erase(iter);  
67              delete iter->second;              delete iter->second;
68              iter++;              iter++;
69          }          }
70            Parameters.clear();
71      }      }
72    
73      MidiInputPort::MidiInputPort(MidiInputDevice* pDevice, int portNumber) {      MidiInputPort::MidiInputPort(MidiInputDevice* pDevice, int portNumber)
74            : MidiChannelMapReader(MidiChannelMap),
75              SysexListenersReader(SysexListeners) {
76          this->pDevice = pDevice;          this->pDevice = pDevice;
77          this->portNumber = portNumber;          this->portNumber = portNumber;
78          Parameters["NAME"] = new ParameterName(this);          Parameters["NAME"] = new ParameterName(this);
         pPreviousProgramChangeEngineChannel = NULL;  
79      }      }
80    
81      MidiInputDevice* MidiInputPort::GetDevice() {      MidiInputDevice* MidiInputPort::GetDevice() {
# Line 88  namespace LinuxSampler { Line 91  namespace LinuxSampler {
91      }      }
92    
93      void MidiInputPort::DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel) {      void MidiInputPort::DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel) {
94            if (Key > 127 || Velocity > 127 || MidiChannel > 16) return;
95            const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
96          // dispatch event for engines listening to the same MIDI channel          // dispatch event for engines listening to the same MIDI channel
97          {          {
98              std::set<EngineChannel*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();              std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
99              std::set<EngineChannel*>::iterator end        = MidiChannelMap[MidiChannel].end();              std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
100              for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity);              for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity);
101          }          }
102          // dispatch event for engines listening to ALL MIDI channels          // dispatch event for engines listening to ALL MIDI channels
103          {          {
104              std::set<EngineChannel*>::iterator engineiter = MidiChannelMap[midi_chan_all].begin();              std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
105              std::set<EngineChannel*>::iterator end        = MidiChannelMap[midi_chan_all].end();              std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
106              for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity);              for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity);
107          }          }
108            MidiChannelMapReader.Unlock();
109        }
110    
111        void MidiInputPort::DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel, int32_t FragmentPos) {
112            if (Key > 127 || Velocity > 127 || MidiChannel > 16) return;
113            const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
114            // dispatch event for engines listening to the same MIDI channel
115            {
116                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
117                std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
118                for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity, FragmentPos);
119            }
120            // dispatch event for engines listening to ALL MIDI channels
121            {
122                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
123                std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
124                for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity, FragmentPos);
125            }
126            MidiChannelMapReader.Unlock();
127      }      }
128    
129      void MidiInputPort::DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel) {      void MidiInputPort::DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel) {
130            if (Key > 127 || Velocity > 127 || MidiChannel > 16) return;
131            const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
132          // dispatch event for engines listening to the same MIDI channel          // dispatch event for engines listening to the same MIDI channel
133          {          {
134              std::set<EngineChannel*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();              std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
135              std::set<EngineChannel*>::iterator end        = MidiChannelMap[MidiChannel].end();              std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
136              for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity);              for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity);
137          }          }
138          // dispatch event for engines listening to ALL MIDI channels          // dispatch event for engines listening to ALL MIDI channels
139          {          {
140              std::set<EngineChannel*>::iterator engineiter = MidiChannelMap[midi_chan_all].begin();              std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
141              std::set<EngineChannel*>::iterator end        = MidiChannelMap[midi_chan_all].end();              std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
142              for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity);              for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity);
143          }          }
144            MidiChannelMapReader.Unlock();
145        }
146    
147        void MidiInputPort::DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel, int32_t FragmentPos) {
148            if (Key > 127 || Velocity > 127 || MidiChannel > 16) return;
149            const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
150            // dispatch event for engines listening to the same MIDI channel
151            {
152                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
153                std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
154                for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity, FragmentPos);
155            }
156            // dispatch event for engines listening to ALL MIDI channels
157            {
158                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
159                std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
160                for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity, FragmentPos);
161            }
162            MidiChannelMapReader.Unlock();
163      }      }
164    
165      void MidiInputPort::DispatchPitchbend(int Pitch, uint MidiChannel) {      void MidiInputPort::DispatchPitchbend(int Pitch, uint MidiChannel) {
166            if (Pitch < -8192 || Pitch > 8191 || MidiChannel > 16) return;
167            const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
168          // dispatch event for engines listening to the same MIDI channel          // dispatch event for engines listening to the same MIDI channel
169          {          {
170              std::set<EngineChannel*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();              std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
171              std::set<EngineChannel*>::iterator end        = MidiChannelMap[MidiChannel].end();              std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
172              for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch);              for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch);
173          }          }
174          // dispatch event for engines listening to ALL MIDI channels          // dispatch event for engines listening to ALL MIDI channels
175          {          {
176              std::set<EngineChannel*>::iterator engineiter = MidiChannelMap[midi_chan_all].begin();              std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
177              std::set<EngineChannel*>::iterator end        = MidiChannelMap[midi_chan_all].end();              std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
178              for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch);              for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch);
179          }          }
180            MidiChannelMapReader.Unlock();
181        }
182    
183        void MidiInputPort::DispatchPitchbend(int Pitch, uint MidiChannel, int32_t FragmentPos) {
184            if (Pitch < -8192 || Pitch > 8191 || MidiChannel > 16) return;
185            const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
186            // dispatch event for engines listening to the same MIDI channel
187            {
188                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
189                std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
190                for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch, FragmentPos);
191            }
192            // dispatch event for engines listening to ALL MIDI channels
193            {
194                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
195                std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
196                for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch, FragmentPos);
197            }
198            MidiChannelMapReader.Unlock();
199      }      }
200    
201      void MidiInputPort::DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel) {      void MidiInputPort::DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel) {
202            if (Controller > 128 || Value > 127 || MidiChannel > 16) return;
203            const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
204          // dispatch event for engines listening to the same MIDI channel          // dispatch event for engines listening to the same MIDI channel
205          {          {
206              std::set<EngineChannel*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();              std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
207              std::set<EngineChannel*>::iterator end        = MidiChannelMap[MidiChannel].end();              std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
208              for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value);              for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value);
209          }          }
210          // dispatch event for engines listening to ALL MIDI channels          // dispatch event for engines listening to ALL MIDI channels
211          {          {
212              std::set<EngineChannel*>::iterator engineiter = MidiChannelMap[midi_chan_all].begin();              std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
213              std::set<EngineChannel*>::iterator end        = MidiChannelMap[midi_chan_all].end();              std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
214              for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value);              for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value);
215          }          }
216            MidiChannelMapReader.Unlock();
217        }
218    
219        void MidiInputPort::DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel, int32_t FragmentPos) {
220            if (Controller > 128 || Value > 127 || MidiChannel > 16) return;
221            const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
222            // dispatch event for engines listening to the same MIDI channel
223            {
224                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
225                std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
226                for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value, FragmentPos);
227            }
228            // dispatch event for engines listening to ALL MIDI channels
229            {
230                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
231                std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
232                for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value, FragmentPos);
233            }
234            MidiChannelMapReader.Unlock();
235      }      }
236    
237      void MidiInputPort::DispatchSysex(void* pData, uint Size) {      void MidiInputPort::DispatchSysex(void* pData, uint Size) {
238            const std::set<Engine*> allEngines = SysexListenersReader.Lock();
239            // dispatch event to all engine instances
240            std::set<Engine*>::iterator engineiter = allEngines.begin();
241            std::set<Engine*>::iterator end        = allEngines.end();
242            for (; engineiter != end; engineiter++) (*engineiter)->SendSysex(pData, Size);
243            SysexListenersReader.Unlock();
244        }
245    
246        void MidiInputPort::DispatchProgramChange(uint8_t Program, uint MidiChannel) {
247            dmsg(1,("Received MIDI program change (prog=%d,ch=%d)\n",Program,MidiChannel));
248            if (Program > 127 || MidiChannel > 16) return;
249            if (!pDevice || !pDevice->pSampler) {
250                std::cerr << "MidiInputPort: ERROR, no sampler instance to handle program change."
251                          << "This is a bug, please report it!\n" << std::flush;
252                return;
253            }
254            const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
255          // dispatch event for engines listening to the same MIDI channel          // dispatch event for engines listening to the same MIDI channel
256          {          {
257              for (uint MidiChannel = 0; MidiChannel <= 16; MidiChannel++) {              std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
258                  std::set<EngineChannel*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();              std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
259                  std::set<EngineChannel*>::iterator end        = MidiChannelMap[MidiChannel].end();              for (; engineiter != end; engineiter++) {
260                  for (; engineiter != end; engineiter++) {                  (*engineiter)->SetMidiProgram(Program);
261                      Engine* pEngine = (*engineiter)->GetEngine();                  // is there a mapping for this MIDI bank&prog pair?
262                      if (pEngine) pEngine->SendSysex(pData, Size);                  midi_prog_index_t midiIndex;
263                    midiIndex.midi_bank_msb = (*engineiter)->GetMidiBankMsb();
264                    midiIndex.midi_bank_lsb = (*engineiter)->GetMidiBankLsb();
265                    midiIndex.midi_prog     = (*engineiter)->GetMidiProgram();
266                    optional<MidiInstrumentMapper::entry_t> mapping =
267                        MidiInstrumentMapper::GetEntry(midiIndex);
268                    if (mapping) { // if mapping exists ...
269                        InstrumentManager::instrument_id_t id;
270                        id.FileName = mapping->InstrumentFile;
271                        id.Index    = mapping->InstrumentIndex;
272                        //TODO: we should switch the engine type here
273                        InstrumentManager::LoadInstrumentInBackground(id, *engineiter);
274                        (*engineiter)->Volume(mapping->Volume);
275                  }                  }
276              }              }
277          }          }
278          // dispatch event for engines listening to ALL MIDI channels          // dispatch event for engines listening to ALL MIDI channels
279          {          {
280              for (uint MidiChannel = 0; MidiChannel <= 16; MidiChannel++) {              std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
281                  std::set<EngineChannel*>::iterator engineiter = MidiChannelMap[midi_chan_all].begin();              std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
282                  std::set<EngineChannel*>::iterator end        = MidiChannelMap[midi_chan_all].end();              for (; engineiter != end; engineiter++) {
283                  for (; engineiter != end; engineiter++) {                  (*engineiter)->SetMidiProgram(Program);
284                      Engine* pEngine = (*engineiter)->GetEngine();                  // is there a mapping for this MIDI bank&prog pair?
285                      if (pEngine) pEngine->SendSysex(pData, Size);                  midi_prog_index_t midiIndex;
286                    midiIndex.midi_bank_msb = (*engineiter)->GetMidiBankMsb();
287                    midiIndex.midi_bank_lsb = (*engineiter)->GetMidiBankLsb();
288                    midiIndex.midi_prog     = (*engineiter)->GetMidiProgram();
289                    optional<MidiInstrumentMapper::entry_t> mapping =
290                        MidiInstrumentMapper::GetEntry(midiIndex);
291                    if (mapping) { // if mapping exists ...
292                        InstrumentManager::instrument_id_t id;
293                        id.FileName = mapping->InstrumentFile;
294                        id.Index    = mapping->InstrumentIndex;
295                        //TODO: we should switch the engine type here
296                        InstrumentManager::LoadInstrumentInBackground(id, *engineiter);
297                        (*engineiter)->Volume(mapping->Volume);
298                  }                  }
299              }              }
300          }          }
301            MidiChannelMapReader.Unlock();
302      }      }
303    
304      void MidiInputPort::DispatchProgramChange(uint8_t Program, uint MidiChannel) {              void MidiInputPort::DispatchBankSelectMsb(uint8_t BankMSB, uint MidiChannel) {
305            if (BankMSB > 127 || MidiChannel > 16) return;
306          if (!pDevice || !pDevice->pSampler) {          if (!pDevice || !pDevice->pSampler) {
307              std::cerr << "MidiInputPort: ERROR, no sampler instance to handle program change."              std::cerr << "MidiInputPort: ERROR, no sampler instance to handle bank select MSB."
308                        << "This is a bug, please report it!\n" << std::flush;                        << "This is a bug, please report it!\n" << std::flush;
309              return;              return;
310          }          }
311            const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
312            // dispatch event for engines listening to the same MIDI channel
313            {
314                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
315                std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
316                // according to the MIDI specs, a bank select should not alter the patch
317                for (; engineiter != end; engineiter++) (*engineiter)->SetMidiBankMsb(BankMSB);
318            }
319            // dispatch event for engines listening to ALL MIDI channels
320            {
321                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
322                std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
323                // according to the MIDI specs, a bank select should not alter the patch
324                for (; engineiter != end; engineiter++) (*engineiter)->SetMidiBankMsb(BankMSB);
325            }
326            MidiChannelMapReader.Unlock();
327        }
328    
329          Sampler*        pSampler        = (Sampler*) pDevice->pSampler;      void MidiInputPort::DispatchBankSelectLsb(uint8_t BankLSB, uint MidiChannel) {
330          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(Program);          if (BankLSB > 127 || MidiChannel > 16) return;
331          if (!pSamplerChannel) return;          if (!pDevice || !pDevice->pSampler) {
332                std::cerr << "MidiInputPort: ERROR, no sampler instance to handle bank select LSB."
333          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();                        << "This is a bug, please report it!\n" << std::flush;
334          if (!pEngineChannel) return;              return;
335            }
336          // disconnect from the engine channel which was connected by the last PC event          const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
337          if (pPreviousProgramChangeEngineChannel)          // dispatch event for engines listening to the same MIDI channel
338              Disconnect(pPreviousProgramChangeEngineChannel);          {
339                            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
340          // now connect to the new engine channel and remember it              std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
341          try {              // according to the MIDI specs, a bank select should not alter the patch
342              Connect(pEngineChannel, (midi_chan_t) MidiChannel);              for (; engineiter != end; engineiter++) (*engineiter)->SetMidiBankLsb(BankLSB);
343              pPreviousProgramChangeEngineChannel = pEngineChannel;          }
344            // dispatch event for engines listening to ALL MIDI channels
345            {
346                std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
347                std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
348                // according to the MIDI specs, a bank select should not alter the patch
349                for (; engineiter != end; engineiter++) (*engineiter)->SetMidiBankLsb(BankLSB);
350          }          }
351          catch (...) { /* NOOP */ }          MidiChannelMapReader.Unlock();
352      }      }
353    
354      void MidiInputPort::Connect(EngineChannel* pEngineChannel, midi_chan_t MidiChannel) {      void MidiInputPort::Connect(EngineChannel* pEngineChannel, midi_chan_t MidiChannel) {
355          if (MidiChannel < 0 || MidiChannel > 16)          if (MidiChannel < 0 || MidiChannel > 16)
356              throw MidiInputException("MIDI channel index out of bounds");              throw MidiInputException("MIDI channel index out of bounds");
357                
358            // first check if desired connection is already established
359            MidiChannelMapMutex.Lock();
360            MidiChannelMap_t& midiChannelMap = MidiChannelMap.GetConfigForUpdate();
361            bool bAlreadyDone = midiChannelMap[MidiChannel].count(pEngineChannel);
362            MidiChannelMapMutex.Unlock();
363            if (bAlreadyDone) return;
364    
365            // remove all other connections of that engine channel (if any)
366          Disconnect(pEngineChannel);          Disconnect(pEngineChannel);
367            
368            // register engine channel on the desired MIDI channel
369          MidiChannelMapMutex.Lock();          MidiChannelMapMutex.Lock();
370          MidiChannelMap[MidiChannel].insert(pEngineChannel);          MidiChannelMap.GetConfigForUpdate()[MidiChannel].insert(pEngineChannel);
371            MidiChannelMap.SwitchConfig()[MidiChannel].insert(pEngineChannel);
372          MidiChannelMapMutex.Unlock();          MidiChannelMapMutex.Unlock();
373    
374            // inform engine channel about this connection
375            pEngineChannel->Connect(this, MidiChannel);
376    
377            // mark engine channel as changed
378            pEngineChannel->StatusChanged(true);
379      }      }
380    
381      void MidiInputPort::Disconnect(EngineChannel* pEngineChannel) {      void MidiInputPort::Disconnect(EngineChannel* pEngineChannel) {
382            if (!pEngineChannel) return;
383    
384            bool bChannelFound = false;
385    
386            // unregister engine channel from all MIDI channels
387          MidiChannelMapMutex.Lock();          MidiChannelMapMutex.Lock();
388          try { for (int i = 0; i <= 16; i++) MidiChannelMap[i].erase(pEngineChannel); }          try {
389                {
390                    MidiChannelMap_t& midiChannelMap = MidiChannelMap.GetConfigForUpdate();
391                    for (int i = 0; i <= 16; i++) {
392                        bChannelFound |= midiChannelMap[i].count(pEngineChannel);
393                        midiChannelMap[i].erase(pEngineChannel);
394                    }
395                }
396                // do the same update again, after switching to the other config
397                {
398                    MidiChannelMap_t& midiChannelMap = MidiChannelMap.SwitchConfig();
399                    for (int i = 0; i <= 16; i++) {
400                        bChannelFound |= midiChannelMap[i].count(pEngineChannel);
401                        midiChannelMap[i].erase(pEngineChannel);
402                    }
403                }
404            }
405          catch(...) { /* NOOP */ }          catch(...) { /* NOOP */ }
406          MidiChannelMapMutex.Unlock();          MidiChannelMapMutex.Unlock();
407    
408            // inform engine channel about the disconnection (if there is one)
409            if (bChannelFound) pEngineChannel->DisconnectMidiInputPort();
410    
411            // mark engine channel as changed
412            pEngineChannel->StatusChanged(true);
413        }
414    
415        SynchronizedConfig<std::set<LinuxSampler::Engine*> > MidiInputPort::SysexListeners;
416    
417        void MidiInputPort::AddSysexListener(Engine* engine) {
418            std::pair<std::set<Engine*>::iterator, bool> p = SysexListeners.GetConfigForUpdate().insert(engine);
419            if (p.second) SysexListeners.SwitchConfig().insert(engine);
420        }
421    
422        bool MidiInputPort::RemoveSysexListener(Engine* engine) {
423            int count = SysexListeners.GetConfigForUpdate().erase(engine);
424            if (count) SysexListeners.SwitchConfig().erase(engine);
425            return count;
426      }      }
427    
428  } // namespace LinuxSampler  } // namespace LinuxSampler
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