/[svn]/linuxsampler/trunk/src/engines/gig/Engine.cpp
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Diff of /linuxsampler/trunk/src/engines/gig/Engine.cpp

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revision 1037 by schoenebeck, Tue Jan 23 20:03:22 2007 UTC revision 1041 by schoenebeck, Wed Feb 7 17:45:19 2007 UTC
# Line 51  namespace LinuxSampler { namespace gig { Line 51  namespace LinuxSampler { namespace gig {
51          if (engines.count(pDevice)) {          if (engines.count(pDevice)) {
52              dmsg(4,("Using existing gig::Engine.\n"));              dmsg(4,("Using existing gig::Engine.\n"));
53              pEngine = engines[pDevice];              pEngine = engines[pDevice];
54    
55                // Disable the engine while the new engine channel is
56                // added and initialized. The engine will be enabled again
57                // in EngineChannel::Connect.
58                pEngine->DisableAndLock();
59          } else { // create a new engine (and disk thread) instance for the given audio output device          } else { // create a new engine (and disk thread) instance for the given audio output device
60              dmsg(4,("Creating new gig::Engine.\n"));              dmsg(4,("Creating new gig::Engine.\n"));
61              pEngine = (Engine*) EngineFactory::Create("gig");              pEngine = (Engine*) EngineFactory::Create("gig");
# Line 101  namespace LinuxSampler { namespace gig { Line 106  namespace LinuxSampler { namespace gig {
106          pEventQueue        = new RingBuffer<Event,false>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);          pEventQueue        = new RingBuffer<Event,false>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);
107          pEventPool         = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT);          pEventPool         = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT);
108          pVoicePool         = new Pool<Voice>(CONFIG_MAX_VOICES);          pVoicePool         = new Pool<Voice>(CONFIG_MAX_VOICES);
109            pDimRegionsInUse   = new ::gig::DimensionRegion*[CONFIG_MAX_VOICES + 1];
110          pVoiceStealingQueue = new RTList<Event>(pEventPool);          pVoiceStealingQueue = new RTList<Event>(pEventPool);
111          pGlobalEvents      = new RTList<Event>(pEventPool);          pGlobalEvents      = new RTList<Event>(pEventPool);
112            InstrumentChangeQueue      = new RingBuffer<instrument_change_command_t,false>(1, 0);
113            InstrumentChangeReplyQueue = new RingBuffer<instrument_change_reply_t,false>(1, 0);
114    
115          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
116              iterVoice->SetEngine(this);              iterVoice->SetEngine(this);
117          }          }
# Line 257  namespace LinuxSampler { namespace gig { Line 266  namespace LinuxSampler { namespace gig {
266              delete this->pDiskThread;              delete this->pDiskThread;
267              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
268          }          }
269          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6); //FIXME: assuming stereo          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo
270                                               &instruments);
271          if (!pDiskThread) {          if (!pDiskThread) {
272              dmsg(0,("gig::Engine  new diskthread = NULL\n"));              dmsg(0,("gig::Engine  new diskthread = NULL\n"));
273              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
# Line 377  namespace LinuxSampler { namespace gig { Line 387  namespace LinuxSampler { namespace gig {
387          // reset internal voice counter (just for statistic of active voices)          // reset internal voice counter (just for statistic of active voices)
388          ActiveVoiceCountTemp = 0;          ActiveVoiceCountTemp = 0;
389    
390            // handle instrument change commands
391            instrument_change_command_t command;
392            if (InstrumentChangeQueue->pop(&command) > 0) {
393                EngineChannel* pEngineChannel = command.pEngineChannel;
394                pEngineChannel->pInstrument = command.pInstrument;
395    
396                // iterate through all active voices and mark their
397                // dimension regions as "in use". The instrument resource
398                // manager may delete all of the instrument except the
399                // dimension regions and samples that are in use.
400                int i = 0;
401                RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
402                RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
403                while (iuiKey != end) { // iterate through all active keys
404                    midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
405                    ++iuiKey;
406    
407                    RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
408                    RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
409                    for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
410                        if (!itVoice->Orphan) {
411                            itVoice->Orphan = true;
412                            pDimRegionsInUse[i++] = itVoice->pDimRgn;
413                        }
414                    }
415                }
416                pDimRegionsInUse[i] = 0; // end of list
417    
418                // send a reply to the calling thread, which is waiting
419                instrument_change_reply_t reply;
420                InstrumentChangeReplyQueue->push(&reply);
421            }
422    
423          // handle events on all engine channels          // handle events on all engine channels
424          for (int i = 0; i < engineChannels.size(); i++) {          for (int i = 0; i < engineChannels.size(); i++) {
             if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded  
425              ProcessEvents(engineChannels[i], Samples);              ProcessEvents(engineChannels[i], Samples);
426          }          }
427    
428          // render all 'normal', active voices on all engine channels          // render all 'normal', active voices on all engine channels
429          for (int i = 0; i < engineChannels.size(); i++) {          for (int i = 0; i < engineChannels.size(); i++) {
             if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded  
430              RenderActiveVoices(engineChannels[i], Samples);              RenderActiveVoices(engineChannels[i], Samples);
431          }          }
432    
# Line 400  namespace LinuxSampler { namespace gig { Line 441  namespace LinuxSampler { namespace gig {
441    
442          // handle cleanup on all engine channels for the next audio fragment          // handle cleanup on all engine channels for the next audio fragment
443          for (int i = 0; i < engineChannels.size(); i++) {          for (int i = 0; i < engineChannels.size(); i++) {
             if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded  
444              PostProcess(engineChannels[i]);              PostProcess(engineChannels[i]);
445          }          }
446    
# Line 519  namespace LinuxSampler { namespace gig { Line 559  namespace LinuxSampler { namespace gig {
559          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
560          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
561              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;
562                if (!pEngineChannel->pInstrument) continue; // ignore if no instrument loaded
563              Pool<Voice>::Iterator itNewVoice =              Pool<Voice>::Iterator itNewVoice =
564                  LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false);                  LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false);
565              if (itNewVoice) {              if (itNewVoice) {
# Line 666  namespace LinuxSampler { namespace gig { Line 707  namespace LinuxSampler { namespace gig {
707          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
708          #endif          #endif
709    
710            if (!pEngineChannel->pInstrument) return; // ignore if no instrument loaded
711    
712            //HACK: we should better add the transpose value only to the most mandatory places (like for retrieving the region and calculating the tuning), because otherwise voices will unintendedly survive when changing transpose while playing
713            itNoteOnEvent->Param.Note.Key += pEngineChannel->GlobalTranspose;
714    
715          const int key = itNoteOnEvent->Param.Note.Key;          const int key = itNoteOnEvent->Param.Note.Key;
716          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];
717    
# Line 753  namespace LinuxSampler { namespace gig { Line 799  namespace LinuxSampler { namespace gig {
799          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
800          #endif          #endif
801    
802            //HACK: we should better add the transpose value only to the most mandatory places (like for retrieving the region and calculating the tuning), because otherwise voices will unintendedly survive when changing transpose while playing
803            itNoteOffEvent->Param.Note.Key += pEngineChannel->GlobalTranspose;
804    
805          const int iKey = itNoteOffEvent->Param.Note.Key;          const int iKey = itNoteOffEvent->Param.Note.Key;
806          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[iKey];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[iKey];
807          pKey->KeyPressed = false; // the MIDI key was now released          pKey->KeyPressed = false; // the MIDI key was now released
# Line 763  namespace LinuxSampler { namespace gig { Line 812  namespace LinuxSampler { namespace gig {
812          bool bShouldRelease = pKey->Active && ShouldReleaseVoice(pEngineChannel, itNoteOffEventOnKeyList->Param.Note.Key);          bool bShouldRelease = pKey->Active && ShouldReleaseVoice(pEngineChannel, itNoteOffEventOnKeyList->Param.Note.Key);
813    
814          // in case Solo Mode is enabled, kill all voices on this key and respawn a voice on the highest pressed key (if any)          // in case Solo Mode is enabled, kill all voices on this key and respawn a voice on the highest pressed key (if any)
815          if (pEngineChannel->SoloMode) { //TODO: this feels like too much code just for handling solo mode :P          if (pEngineChannel->SoloMode && pEngineChannel->pInstrument) { //TODO: this feels like too much code just for handling solo mode :P
816              bool bOtherKeysPressed = false;              bool bOtherKeysPressed = false;
817              if (iKey == pEngineChannel->SoloKey) {              if (iKey == pEngineChannel->SoloKey) {
818                  pEngineChannel->SoloKey = -1;                  pEngineChannel->SoloKey = -1;
# Line 826  namespace LinuxSampler { namespace gig { Line 875  namespace LinuxSampler { namespace gig {
875              itNoteOffEventOnKeyList->Type = Event::type_release; // transform event type              itNoteOffEventOnKeyList->Type = Event::type_release; // transform event type
876    
877              // spawn release triggered voice(s) if needed              // spawn release triggered voice(s) if needed
878              if (pKey->ReleaseTrigger) {              if (pKey->ReleaseTrigger && pEngineChannel->pInstrument) {
879                  // first, get total amount of required voices (dependant on amount of layers)                  // first, get total amount of required voices (dependant on amount of layers)
880                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
881                  if (pRegion) {                  if (pRegion) {
# Line 1021  namespace LinuxSampler { namespace gig { Line 1070  namespace LinuxSampler { namespace gig {
1070                      std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;                      std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;
1071              }              }
1072          }          }
1073    
1074            // return if this is a release triggered voice and there is no
1075            // releasetrigger dimension (could happen if an instrument
1076            // change has occured between note on and off)
1077            if (ReleaseTriggerVoice && VoiceType != Voice::type_release_trigger) return Pool<Voice>::Iterator();
1078    
1079          ::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);          ::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);
1080    
1081          // no need to continue if sample is silent          // no need to continue if sample is silent
# Line 1250  namespace LinuxSampler { namespace gig { Line 1305  namespace LinuxSampler { namespace gig {
1305    
1306              uint keygroup = itVoice->KeyGroup;              uint keygroup = itVoice->KeyGroup;
1307    
1308                // if the sample and dimension region belong to an
1309                // instrument that is unloaded, tell the disk thread to
1310                // release them
1311                if (itVoice->Orphan) {
1312                    pDiskThread->OrderDeletionOfDimreg(itVoice->pDimRgn);
1313                }
1314    
1315              // free the voice object              // free the voice object
1316              pVoicePool->free(itVoice);              pVoicePool->free(itVoice);
1317    
# Line 1300  namespace LinuxSampler { namespace gig { Line 1362  namespace LinuxSampler { namespace gig {
1362                  pEngineChannel->PortamentoTime = (float) itControlChangeEvent->Param.CC.Value / 127.0f * (float) CONFIG_PORTAMENTO_TIME_MAX + (float) CONFIG_PORTAMENTO_TIME_MIN;                  pEngineChannel->PortamentoTime = (float) itControlChangeEvent->Param.CC.Value / 127.0f * (float) CONFIG_PORTAMENTO_TIME_MAX + (float) CONFIG_PORTAMENTO_TIME_MIN;
1363                  break;                  break;
1364              }              }
1365                case 6: { // data entry (currently only used for RPN controllers)
1366                    if (pEngineChannel->GetMidiRpnController() == 2) { // coarse tuning in half tones
1367                        int transpose = (int) itControlChangeEvent->Param.CC.Value - 64;
1368                        // limit to +- two octaves for now
1369                        transpose = RTMath::Min(transpose,  24);
1370                        transpose = RTMath::Max(transpose, -24);
1371                        pEngineChannel->GlobalTranspose = transpose;
1372                    }
1373                    break;
1374                }
1375              case 7: { // volume              case 7: { // volume
1376                  //TODO: not sample accurate yet                  //TODO: not sample accurate yet
1377                  pEngineChannel->MidiVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value];                  pEngineChannel->MidiVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value];
# Line 1404  namespace LinuxSampler { namespace gig { Line 1476  namespace LinuxSampler { namespace gig {
1476                  }                  }
1477                  break;                  break;
1478              }              }
1479                case 100: { // RPN controller LSB
1480                    pEngineChannel->SetMidiRpnControllerLsb(itControlChangeEvent->Param.CC.Value);
1481                    break;
1482                }
1483                case 101: { // RPN controller MSB
1484                    pEngineChannel->SetMidiRpnControllerMsb(itControlChangeEvent->Param.CC.Value);
1485                    break;
1486                }
1487    
1488    
1489              // Channel Mode Messages              // Channel Mode Messages
# Line 1636  namespace LinuxSampler { namespace gig { Line 1716  namespace LinuxSampler { namespace gig {
1716      }      }
1717    
1718      String Engine::Version() {      String Engine::Version() {
1719          String s = "$Revision: 1.70 $";          String s = "$Revision: 1.73 $";
1720          return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword          return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
1721      }      }
1722    
# Line 1686  namespace LinuxSampler { namespace gig { Line 1766  namespace LinuxSampler { namespace gig {
1766          return y;          return y;
1767      }      }
1768    
1769        /**
1770         * Changes the instrument for an engine channel.
1771         *
1772         * @param pEngineChannel - engine channel on which the instrument
1773         *                         should be changed
1774         * @param pInstrument - new instrument
1775         * @returns a list of dimension regions from the old instrument
1776         *          that are still in use
1777         */
1778        ::gig::DimensionRegion** Engine::ChangeInstrument(EngineChannel* pEngineChannel, ::gig::Instrument* pInstrument) {
1779            instrument_change_command_t command;
1780            command.pEngineChannel = pEngineChannel;
1781            command.pInstrument = pInstrument;
1782            InstrumentChangeQueue->push(&command);
1783    
1784            // wait for the audio thread to confirm that the instrument
1785            // change has been done
1786            instrument_change_reply_t reply;
1787            while (InstrumentChangeReplyQueue->pop(&reply) == 0) {
1788                usleep(10000);
1789            }
1790            return pDimRegionsInUse;
1791        }
1792    
1793  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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