/[svn]/linuxsampler/trunk/src/engines/EngineBase.h
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revision 2012 by iliev, Fri Oct 23 17:53:17 2009 UTC revision 2298 by iliev, Fri Dec 9 17:04:24 2011 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) 2005-2009 Christian Schoenebeck                         *   *   Copyright (C) 2005-2008 Christian Schoenebeck                         *
7   *   Copyright (C) 2009 Grigor Iliev                                       *   *   Copyright (C) 2009-2011 Christian Schoenebeck and Grigor Iliev        *
8   *                                                                         *   *                                                                         *
9   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
10   *   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 190  namespace LinuxSampler { Line 190  namespace LinuxSampler {
190                  // been deleted by the disk thread                  // been deleted by the disk thread
191                  if (iPendingStreamDeletions) ProcessPendingStreamDeletions();                  if (iPendingStreamDeletions) ProcessPendingStreamDeletions();
192    
193                    // Release the instrument change command. (This has to
194                    // be done after all voices have been rendered and not
195                    // in HandleInstrumentChanges, as the RegionsInUse
196                    // list has been built up by the voice renderers.)
197                    for (int i = 0; i < engineChannels.size(); i++) {
198                        EngineChannelBase<V, R, I>* channel =
199                            static_cast<EngineChannelBase<V, R, I>*>(engineChannels[i]);
200                        channel->InstrumentChangeCommandReader.Unlock();
201                    }
202                  FrameTime += Samples;                  FrameTime += Samples;
203    
204                  EngineDisabled.RttDone();                  EngineDisabled.RttDone();
# Line 234  namespace LinuxSampler { Line 243  namespace LinuxSampler {
243                  }                  }
244                  pVoicePool->clear();                  pVoicePool->clear();
245    
246                    PostSetMaxVoices(iVoices);
247                  ResumeAll();                  ResumeAll();
248              }              }
249                
250                /** Called after the new max number of voices is set and before resuming the engine. */
251                virtual void PostSetMaxVoices(int iVoices) { }
252    
253              virtual uint DiskStreamCount() { return (pDiskThread) ? pDiskThread->GetActiveStreamCount() : 0; }              virtual uint DiskStreamCount() { return (pDiskThread) ? pDiskThread->GetActiveStreamCount() : 0; }
254              virtual uint DiskStreamCountMax() { return (pDiskThread) ? pDiskThread->ActiveStreamCountMax : 0; }              virtual uint DiskStreamCountMax() { return (pDiskThread) ? pDiskThread->ActiveStreamCountMax : 0; }
# Line 299  namespace LinuxSampler { Line 312  namespace LinuxSampler {
312                      // lower minimum release time                      // lower minimum release time
313                      const float minReleaseTime = (float) MaxSamplesPerCycle / (float) SampleRate;                      const float minReleaseTime = (float) MaxSamplesPerCycle / (float) SampleRate;
314                      for (VoiceIterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {                      for (VoiceIterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
315                          iterVoice->EG1.CalculateFadeOutCoeff(minReleaseTime, SampleRate);                          iterVoice->pEG1->CalculateFadeOutCoeff(minReleaseTime, SampleRate);
316                      }                      }
317                      pVoicePool->clear();                      pVoicePool->clear();
318                  }                  }
# Line 332  namespace LinuxSampler { Line 345  namespace LinuxSampler {
345                  pDiskThread->StartThread();                  pDiskThread->StartThread();
346                  dmsg(1,("OK\n"));                  dmsg(1,("OK\n"));
347    
348                    bool printEqInfo = true;
349                  for (VoiceIterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {                  for (VoiceIterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
350                      if (!iterVoice->pDiskThread) {                      if (!iterVoice->pDiskThread) {
351                          dmsg(0,("Engine -> voice::trigger: !pDiskThread\n"));                          dmsg(0,("Engine -> voice::trigger: !pDiskThread\n"));
352                          exit(EXIT_FAILURE);                          exit(EXIT_FAILURE);
353                      }                      }
354                        
355                        iterVoice->CreateEq();
356                        
357                        if(printEqInfo) {
358                            iterVoice->PrintEqInfo();
359                            printEqInfo = false;
360                        }
361                  }                  }
362                  pVoicePool->clear();                  pVoicePool->clear();
363                    
364                    // (re)create dedicated voice audio buffers
365                    //TODO: we could optimize resource usage a bit by just allocating these dedicated voice buffers when there is at least one engine channel with FX sends, because only in this case those special buffers are used actually, but since it would usually only save couple bytes in total, its probably not worth it
366                    if (pDedicatedVoiceChannelLeft)  delete pDedicatedVoiceChannelLeft;
367                    if (pDedicatedVoiceChannelRight) delete pDedicatedVoiceChannelRight;
368                    pDedicatedVoiceChannelLeft  = new AudioChannel(0, MaxSamplesPerCycle);
369                    pDedicatedVoiceChannelRight = new AudioChannel(1, MaxSamplesPerCycle);
370              }              }
371    
372              /**              /**
# Line 530  namespace LinuxSampler { Line 558  namespace LinuxSampler {
558    
559              //friend class EngineChannelBase<V, R, I>;              //friend class EngineChannelBase<V, R, I>;
560    
561                static IM instruments;
562    
563          protected:          protected:
564              class SuspensionVoiceHandler : public MidiKeyboardManager<V>::VoiceHandler {              class SuspensionVoiceHandler : public MidiKeyboardManager<V>::VoiceHandler {
565              public:              public:
# Line 558  namespace LinuxSampler { Line 588  namespace LinuxSampler {
588                  }                  }
589              };              };
590    
             static IM instruments;  
   
591              Pool<R*>* pRegionPool[2]; ///< Double buffered pool, used by the engine channels to keep track of regions in use.              Pool<R*>* pRegionPool[2]; ///< Double buffered pool, used by the engine channels to keep track of regions in use.
592              int       MinFadeOutSamples;     ///< The number of samples needed to make an instant fade out (e.g. for voice stealing) without leading to clicks.              int       MinFadeOutSamples;     ///< The number of samples needed to make an instant fade out (e.g. for voice stealing) without leading to clicks.
593              D*        pDiskThread;              D*        pDiskThread;
594    
             int                          VoiceSpawnsLeft;       ///< We only allow CONFIG_MAX_VOICES voices to be spawned per audio fragment, we use this variable to ensure this limit.  
595              int                          ActiveVoiceCountTemp;  ///< number of currently active voices (for internal usage, will be used for incrementation)              int                          ActiveVoiceCountTemp;  ///< number of currently active voices (for internal usage, will be used for incrementation)
596              VoiceIterator                itLastStolenVoice;     ///< Only for voice stealing: points to the last voice which was theft in current audio fragment, NULL otherwise.              VoiceIterator                itLastStolenVoice;     ///< Only for voice stealing: points to the last voice which was theft in current audio fragment, NULL otherwise.
597              RTList<uint>::Iterator       iuiLastStolenKey;      ///< Only for voice stealing: key number of last key on which the last voice was theft in current audio fragment, NULL otherwise.              RTList<uint>::Iterator       iuiLastStolenKey;      ///< Only for voice stealing: key number of last key on which the last voice was theft in current audio fragment, NULL otherwise.
# Line 766  namespace LinuxSampler { Line 793  namespace LinuxSampler {
793                      //TODO: this is a lazy solution ATM and not safe in case somebody is currently editing the instrument we're currently switching to (we should store all suspended regions on instrument manager side and when switching to another instrument copy that list to the engine's local list of suspensions                      //TODO: this is a lazy solution ATM and not safe in case somebody is currently editing the instrument we're currently switching to (we should store all suspended regions on instrument manager side and when switching to another instrument copy that list to the engine's local list of suspensions
794                      ResetSuspendedRegions();                      ResetSuspendedRegions();
795                  }                  }
   
                 for (int i = 0; i < engineChannels.size(); i++) {  
                     EngineChannelBase<V, R, I>* channel =  
                         static_cast<EngineChannelBase<V, R, I>*>(engineChannels[i]);  
                     channel->InstrumentChangeCommandReader.Unlock();  
                 }  
796              }              }
797    
798              /**              /**
# Line 858  namespace LinuxSampler { Line 879  namespace LinuxSampler {
879                  pChannel->ClearEventLists();                  pChannel->ClearEventLists();
880              }              }
881    
882                /**
883                 * Process MIDI control change events with hard coded behavior,
884                 * that is controllers whose behavior is defined independently
885                 * of the actual sampler engine type and instrument.
886                 *
887                 * @param pEngineChannel - engine channel on which the MIDI CC event was received
888                 * @param itControlChangeEvent - the actual MIDI CC event
889                 */
890              void ProcessHardcodedControllers (              void ProcessHardcodedControllers (
891                  EngineChannel*          pEngineChannel,                  EngineChannel*          pEngineChannel,
892                  Pool<Event>::Iterator&  itControlChangeEvent                  Pool<Event>::Iterator&  itControlChangeEvent
# Line 870  namespace LinuxSampler { Line 899  namespace LinuxSampler {
899                          pChannel->PortamentoTime = (float) itControlChangeEvent->Param.CC.Value / 127.0f * (float) CONFIG_PORTAMENTO_TIME_MAX + (float) CONFIG_PORTAMENTO_TIME_MIN;                          pChannel->PortamentoTime = (float) itControlChangeEvent->Param.CC.Value / 127.0f * (float) CONFIG_PORTAMENTO_TIME_MAX + (float) CONFIG_PORTAMENTO_TIME_MIN;
900                          break;                          break;
901                      }                      }
902                      case 6: { // data entry (currently only used for RPN controllers)                      case 6: { // data entry (currently only used for RPN and NRPN controllers)
903                          if (pChannel->GetMidiRpnController() == 2) { // coarse tuning in half tones                          //dmsg(1,("DATA ENTRY %d\n", itControlChangeEvent->Param.CC.Value));
904                              int transpose = (int) itControlChangeEvent->Param.CC.Value - 64;                          if (pChannel->GetMidiRpnController() >= 0) { // RPN controller number was sent previously ...
905                              // limit to +- two octaves for now                              dmsg(4,("Guess it's an RPN ...\n"));
906                              transpose = RTMath::Min(transpose,  24);                              if (pChannel->GetMidiRpnController() == 2) { // coarse tuning in half tones
907                              transpose = RTMath::Max(transpose, -24);                                  int transpose = (int) itControlChangeEvent->Param.CC.Value - 64;
908                              pChannel->GlobalTranspose = transpose;                                  // limit to +- two octaves for now
909                              // workaround, so we won't have hanging notes                                  transpose = RTMath::Min(transpose,  24);
910                              pChannel->ReleaseAllVoices(itControlChangeEvent);                                  transpose = RTMath::Max(transpose, -24);
911                                    pChannel->GlobalTranspose = transpose;
912                                    // workaround, so we won't have hanging notes
913                                    pChannel->ReleaseAllVoices(itControlChangeEvent);
914                                }
915                                // to prevent other MIDI CC #6 messages to be misenterpreted as RPN controller data
916                                pChannel->ResetMidiRpnController();
917                            } else if (pChannel->GetMidiNrpnController() >= 0) { // NRPN controller number was sent previously ...
918                                dmsg(4,("Guess it's an NRPN ...\n"));
919                                const int NrpnCtrlMSB = pChannel->GetMidiNrpnController() >> 8;
920                                const int NrpnCtrlLSB = pChannel->GetMidiNrpnController() & 0xff;
921                                dmsg(4,("NRPN MSB=%d LSB=%d Data=%d\n", NrpnCtrlMSB, NrpnCtrlLSB, itControlChangeEvent->Param.CC.Value));
922                                switch (NrpnCtrlMSB) {
923                                    case 0x1a: { // volume level of note (Roland GS NRPN)
924                                        const uint note = NrpnCtrlLSB;
925                                        const uint vol  = itControlChangeEvent->Param.CC.Value;
926                                        dmsg(4,("Note Volume NRPN received (note=%d,vol=%d).\n", note, vol));
927                                        if (note < 128 && vol < 128)
928                                            pChannel->pMIDIKeyInfo[note].Volume = VolumeCurve[vol];
929                                        break;
930                                    }
931                                    case 0x1c: { // panpot of note (Roland GS NRPN)
932                                        const uint note = NrpnCtrlLSB;
933                                        const uint pan  = itControlChangeEvent->Param.CC.Value;
934                                        dmsg(4,("Note Pan NRPN received (note=%d,pan=%d).\n", note, pan));
935                                        if (note < 128 && pan < 128) {
936                                            pChannel->pMIDIKeyInfo[note].PanLeft  = PanCurve[128 - pan];
937                                            pChannel->pMIDIKeyInfo[note].PanRight = PanCurve[pan];
938                                        }
939                                        break;
940                                    }
941                                    case 0x1d: { // reverb send of note (Roland GS NRPN)
942                                        const uint note = NrpnCtrlLSB;
943                                        const float reverb = float(itControlChangeEvent->Param.CC.Value) / 127.0f;
944                                        dmsg(4,("Note Reverb Send NRPN received (note=%d,send=%d).\n", note, reverb));
945                                        if (note < 128)
946                                            pChannel->pMIDIKeyInfo[note].ReverbSend = reverb;
947                                        break;
948                                    }
949                                    case 0x1e: { // chorus send of note (Roland GS NRPN)
950                                        const uint note = NrpnCtrlLSB;
951                                        const float chorus = float(itControlChangeEvent->Param.CC.Value) / 127.0f;
952                                        dmsg(4,("Note Chorus Send NRPN received (note=%d,send=%d).\n", note, chorus));
953                                        if (note < 128)
954                                            pChannel->pMIDIKeyInfo[note].ChorusSend = chorus;
955                                        break;
956                                    }
957                                }
958                                // to prevent other MIDI CC #6 messages to be misenterpreted as NRPN controller data
959                                pChannel->ResetMidiNrpnController();
960                          }                          }
                         // to avoid other MIDI CC #6 messages to be misenterpreted as RPN controller data  
                         pChannel->ResetMidiRpnController();  
961                          break;                          break;
962                      }                      }
963                      case 7: { // volume                      case 7: { // volume
# Line 970  namespace LinuxSampler { Line 1046  namespace LinuxSampler {
1046                          }                          }
1047                          break;                          break;
1048                      }                      }
1049                        case 98: { // NRPN controller LSB
1050                            dmsg(4,("NRPN LSB %d\n", itControlChangeEvent->Param.CC.Value));
1051                            pEngineChannel->SetMidiNrpnControllerLsb(itControlChangeEvent->Param.CC.Value);
1052                            break;
1053                        }
1054                        case 99: { // NRPN controller MSB
1055                            dmsg(4,("NRPN MSB %d\n", itControlChangeEvent->Param.CC.Value));
1056                            pEngineChannel->SetMidiNrpnControllerMsb(itControlChangeEvent->Param.CC.Value);
1057                            break;
1058                        }
1059                      case 100: { // RPN controller LSB                      case 100: { // RPN controller LSB
1060                            dmsg(4,("RPN LSB %d\n", itControlChangeEvent->Param.CC.Value));
1061                          pEngineChannel->SetMidiRpnControllerLsb(itControlChangeEvent->Param.CC.Value);                          pEngineChannel->SetMidiRpnControllerLsb(itControlChangeEvent->Param.CC.Value);
1062                          break;                          break;
1063                      }                      }
1064                      case 101: { // RPN controller MSB                      case 101: { // RPN controller MSB
1065                            dmsg(4,("RPN MSB %d\n", itControlChangeEvent->Param.CC.Value));
1066                          pEngineChannel->SetMidiRpnControllerMsb(itControlChangeEvent->Param.CC.Value);                          pEngineChannel->SetMidiRpnControllerMsb(itControlChangeEvent->Param.CC.Value);
1067                          break;                          break;
1068                      }                      }
# Line 1065  namespace LinuxSampler { Line 1153  namespace LinuxSampler {
1153                              VoiceIterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();                              VoiceIterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
1154                              VoiceIterator end               = pOtherKey->pActiveVoices->end();                              VoiceIterator end               = pOtherKey->pActiveVoices->end();
1155                              for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {                              for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
1156                                  if (itVoiceToBeKilled->Type != Voice::type_release_trigger)                                  if (!(itVoiceToBeKilled->Type & Voice::type_release_trigger))
1157                                      itVoiceToBeKilled->Kill(itNoteOnEventOnKeyList);                                      itVoiceToBeKilled->Kill(itNoteOnEventOnKeyList);
1158                              }                              }
1159                          }                          }
# Line 1097  namespace LinuxSampler { Line 1185  namespace LinuxSampler {
1185                      pKey->pEvents->free(itNoteOnEventOnKeyList);                      pKey->pEvents->free(itNoteOnEventOnKeyList);
1186    
1187                  if (!pChannel->SoloMode || pChannel->PortamentoPos < 0.0f) pChannel->PortamentoPos = (float) key;                  if (!pChannel->SoloMode || pChannel->PortamentoPos < 0.0f) pChannel->PortamentoPos = (float) key;
1188                  pKey->RoundRobinIndex++;                  if (pKey->pRoundRobinIndex) {
1189                        (*pKey->pRoundRobinIndex)++; // counter specific for the key or region
1190                        pChannel->RoundRobinIndex++; // common counter for the channel
1191                    }
1192                  pChannel->listeners.PostProcessNoteOn(key, vel);                  pChannel->listeners.PostProcessNoteOn(key, vel);
1193              }              }
1194    
# Line 1199  namespace LinuxSampler { Line 1290  namespace LinuxSampler {
1290                              VoiceIterator itVoiceToBeKilled = pKey->pActiveVoices->first();                              VoiceIterator itVoiceToBeKilled = pKey->pActiveVoices->first();
1291                              VoiceIterator end               = pKey->pActiveVoices->end();                              VoiceIterator end               = pKey->pActiveVoices->end();
1292                              for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {                              for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
1293                                  if (itVoiceToBeKilled->Type != Voice::type_release_trigger)                                  if (!(itVoiceToBeKilled->Type & Voice::type_release_trigger))
1294                                      itVoiceToBeKilled->Kill(itNoteOffEventOnKeyList);                                      itVoiceToBeKilled->Kill(itNoteOffEventOnKeyList);
1295                              }                              }
1296                          }                          }
# Line 1304  namespace LinuxSampler { Line 1395  namespace LinuxSampler {
1395                  bool                    HandleKeyGroupConflicts                  bool                    HandleKeyGroupConflicts
1396              ) = 0;              ) = 0;
1397    
1398                virtual int GetMinFadeOutSamples() { return MinFadeOutSamples; }
1399    
1400                int InitNewVoice (
1401                    EngineChannelBase<V, R, I>*  pChannel,
1402                    R*                           pRegion,
1403                    Pool<Event>::Iterator&       itNoteOnEvent,
1404                    Voice::type_t                VoiceType,
1405                    int                          iLayer,
1406                    int                          iKeyGroup,
1407                    bool                         ReleaseTriggerVoice,
1408                    bool                         VoiceStealing,
1409                    typename Pool<V>::Iterator&  itNewVoice
1410                ) {
1411                    int key = itNoteOnEvent->Param.Note.Key;
1412                    typename MidiKeyboardManager<V>::MidiKey* pKey = &pChannel->pMIDIKeyInfo[key];
1413                    if (itNewVoice) {
1414                        // launch the new voice
1415                        if (itNewVoice->Trigger(pChannel, itNoteOnEvent, pChannel->Pitch, pRegion, VoiceType, iKeyGroup) < 0) {
1416                            dmsg(4,("Voice not triggered\n"));
1417                            pKey->pActiveVoices->free(itNewVoice);
1418                        }
1419                        else { // on success
1420                            --VoiceSpawnsLeft;
1421                            if (!pKey->Active) { // mark as active key
1422                                pKey->Active = true;
1423                                pKey->itSelf = pChannel->pActiveKeys->allocAppend();
1424                                *pKey->itSelf = itNoteOnEvent->Param.Note.Key;
1425                            }
1426                            if (itNewVoice->Type & Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)
1427                            return 0; // success
1428                        }
1429                    }
1430                    else if (VoiceStealing) {
1431                        // try to steal one voice
1432                        int result = StealVoice(pChannel, itNoteOnEvent);
1433                        if (!result) { // voice stolen successfully
1434                            // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
1435                            RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
1436                            if (itStealEvent) {
1437                                *itStealEvent = *itNoteOnEvent; // copy event
1438                                itStealEvent->Param.Note.Layer = iLayer;
1439                                itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
1440                                pKey->VoiceTheftsQueued++;
1441                            }
1442                            else dmsg(1,("Voice stealing queue full!\n"));
1443                        }
1444                    }
1445    
1446                    return -1;
1447                }
1448    
1449          private:          private:
1450              Pool<V>*    pVoicePool;            ///< Contains all voices that can be activated.              Pool<V>*    pVoicePool;            ///< Contains all voices that can be activated.
1451              Pool<RR*>   SuspendedRegions;              Pool<RR*>   SuspendedRegions;
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