/[svn]/linuxsampler/trunk/src/engines/gig/Engine.cpp
ViewVC logotype

Diff of /linuxsampler/trunk/src/engines/gig/Engine.cpp

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 829 by schoenebeck, Sat Jan 14 14:07:47 2006 UTC revision 924 by schoenebeck, Sat Oct 21 14:13:09 2006 UTC
# Line 116  namespace LinuxSampler { namespace gig { Line 116  namespace LinuxSampler { namespace gig {
116       * Destructor       * Destructor
117       */       */
118      Engine::~Engine() {      Engine::~Engine() {
119            MidiInputPort::RemoveSysexListener(this);
120          if (pDiskThread) {          if (pDiskThread) {
121              dmsg(1,("Stopping disk thread..."));              dmsg(1,("Stopping disk thread..."));
122              pDiskThread->StopThread();              pDiskThread->StopThread();
# Line 165  namespace LinuxSampler { namespace gig { Line 166  namespace LinuxSampler { namespace gig {
166    
167      /**      /**
168       *  Reset all voices and disk thread and clear input event queue and all       *  Reset all voices and disk thread and clear input event queue and all
169       *  control and status variables. This method is not thread safe!       *  control and status variables. This method is protected by a mutex.
170       */       */
171      void Engine::ResetInternal() {      void Engine::ResetInternal() {
172            ResetInternalMutex.Lock();
173    
174            // make sure that the engine does not get any sysex messages
175            // while it's reseting
176            bool sysexDisabled = MidiInputPort::RemoveSysexListener(this);
177          ActiveVoiceCount    = 0;          ActiveVoiceCount    = 0;
178          ActiveVoiceCountMax = 0;          ActiveVoiceCountMax = 0;
179    
# Line 191  namespace LinuxSampler { namespace gig { Line 197  namespace LinuxSampler { namespace gig {
197          // delete all input events          // delete all input events
198          pEventQueue->init();          pEventQueue->init();
199          pSysexBuffer->init();          pSysexBuffer->init();
200            if (sysexDisabled) MidiInputPort::AddSysexListener(this);
201            ResetInternalMutex.Unlock();
202      }      }
203    
204      /**      /**
# Line 220  namespace LinuxSampler { namespace gig { Line 228  namespace LinuxSampler { namespace gig {
228          }          }
229          catch (AudioOutputException e) {          catch (AudioOutputException e) {
230              String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message();              String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message();
231              throw LinuxSamplerException(msg);              throw Exception(msg);
232          }          }
233    
234          this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle();          this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle();
# Line 321  namespace LinuxSampler { namespace gig { Line 329  namespace LinuxSampler { namespace gig {
329      }      }
330    
331      /**      /**
332       *  Let this engine proceed to render the given amount of sample points. The       * Let this engine proceed to render the given amount of sample points.
333       *  calculated audio data of all voices of this engine will be placed into       * The engine will iterate through all engine channels and render audio
334       *  the engine's audio sum buffer which has to be copied and eventually be       * for each engine channel independently. The calculated audio data of
335       *  converted to the appropriate value range by the audio output class (e.g.       * all voices of each engine channel will be placed into the audio sum
336       *  AlsaIO or JackIO) right after.       * buffers of the respective audio output device, connected to the
337         * respective engine channel.
338       *       *
339       *  @param Samples - number of sample points to be rendered       *  @param Samples - number of sample points to be rendered
340       *  @returns       0 on success       *  @returns       0 on success
# Line 634  namespace LinuxSampler { namespace gig { Line 643  namespace LinuxSampler { namespace gig {
643          {          {
644              const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument;              const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument;
645              if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high)              if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high)
646                  pEngineChannel->CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) /                  pEngineChannel->CurrentKeyDimension = float(key - pInstrument->DimensionKeyRange.low) /
647                      (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1);                      (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1);
648          }          }
649    
# Line 862  namespace LinuxSampler { namespace gig { Line 871  namespace LinuxSampler { namespace gig {
871                      DimValues[i] = itNoteOnEvent->Param.Note.Velocity;                      DimValues[i] = itNoteOnEvent->Param.Note.Velocity;
872                      break;                      break;
873                  case ::gig::dimension_channelaftertouch:                  case ::gig::dimension_channelaftertouch:
874                      DimValues[i] = 0; //TODO: we currently ignore this dimension                      DimValues[i] = pEngineChannel->ControllerTable[128];
875                      break;                      break;
876                  case ::gig::dimension_releasetrigger:                  case ::gig::dimension_releasetrigger:
877                      VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal;                      VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal;
878                      DimValues[i] = (uint) ReleaseTriggerVoice;                      DimValues[i] = (uint) ReleaseTriggerVoice;
879                      break;                      break;
880                  case ::gig::dimension_keyboard:                  case ::gig::dimension_keyboard:
881                      DimValues[i] = (uint) pEngineChannel->CurrentKeyDimension;                      DimValues[i] = (uint) (pEngineChannel->CurrentKeyDimension * pRegion->pDimensionDefinitions[i].zones);
882                      break;                      break;
883                  case ::gig::dimension_roundrobin:                  case ::gig::dimension_roundrobin:
884                      DimValues[i] = (uint) pEngineChannel->pMIDIKeyInfo[MIDIKey].RoundRobinIndex; // incremented for each note on                      DimValues[i] = (uint) pEngineChannel->pMIDIKeyInfo[MIDIKey].RoundRobinIndex; // incremented for each note on
# Line 1234  namespace LinuxSampler { namespace gig { Line 1243  namespace LinuxSampler { namespace gig {
1243              }              }
1244              case 7: { // volume              case 7: { // volume
1245                  //TODO: not sample accurate yet                  //TODO: not sample accurate yet
1246                  pEngineChannel->GlobalVolume = (float) itControlChangeEvent->Param.CC.Value / 127.0f *  CONFIG_GLOBAL_ATTENUATION;                  pEngineChannel->GlobalVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value] *  CONFIG_GLOBAL_ATTENUATION;
1247                  pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag                  pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag
1248                  break;                  break;
1249              }              }
1250              case 10: { // panpot              case 10: { // panpot
1251                  //TODO: not sample accurate yet                  //TODO: not sample accurate yet
1252                  const int pan = (int) itControlChangeEvent->Param.CC.Value - 64;                  pEngineChannel->GlobalPanLeft  = PanCurve[128 - itControlChangeEvent->Param.CC.Value];
1253                  pEngineChannel->GlobalPanLeft  = 1.0f - float(RTMath::Max(pan, 0)) /  63.0f;                  pEngineChannel->GlobalPanRight = PanCurve[itControlChangeEvent->Param.CC.Value];
                 pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f;  
1254                  break;                  break;
1255              }              }
1256              case 64: { // sustain              case 64: { // sustain
# Line 1350  namespace LinuxSampler { namespace gig { Line 1358  namespace LinuxSampler { namespace gig {
1358                  break;                  break;
1359              }              }
1360              case 123: { // all notes off              case 123: { // all notes off
1361                    #if CONFIG_PROCESS_ALL_NOTES_OFF
1362                  ReleaseAllVoices(pEngineChannel, itControlChangeEvent);                  ReleaseAllVoices(pEngineChannel, itControlChangeEvent);
1363                    #endif // CONFIG_PROCESS_ALL_NOTES_OFF
1364                  break;                  break;
1365              }              }
1366              case 126: { // mono mode on              case 126: { // mono mode on
# Line 1558  namespace LinuxSampler { namespace gig { Line 1568  namespace LinuxSampler { namespace gig {
1568      }      }
1569    
1570      String Engine::Version() {      String Engine::Version() {
1571          String s = "$Revision: 1.57 $";          String s = "$Revision: 1.65 $";
1572          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
1573      }      }
1574    
1575        // static constant initializers
1576        const float* Engine::VolumeCurve(InitVolumeCurve());
1577        const float* Engine::PanCurve(InitPanCurve());
1578        const float* Engine::CrossfadeCurve(InitCrossfadeCurve());
1579    
1580        float* Engine::InitVolumeCurve() {
1581            // line-segment approximation
1582            const float segments[] = {
1583                0, 0, 2, 0.0046, 16, 0.016, 31, 0.051, 45, 0.115, 54.5, 0.2,
1584                64.5, 0.39, 74, 0.74, 92, 1.03, 114, 1.94, 119.2, 2.2, 127, 2.2
1585            };
1586            return InitCurve(segments);
1587        }
1588    
1589        float* Engine::InitPanCurve() {
1590            // line-segment approximation
1591            const float segments[] = {
1592                0, 0, 1, 0,
1593                2, 0.05, 31.5, 0.7, 51, 0.851, 74.5, 1.12,
1594                127, 1.41, 128, 1.41
1595            };
1596            return InitCurve(segments, 129);
1597        }
1598    
1599        float* Engine::InitCrossfadeCurve() {
1600            // line-segment approximation
1601            const float segments[] = {
1602                0, 0, 1, 0.03, 10, 0.1, 51, 0.58, 127, 1
1603            };
1604            return InitCurve(segments);
1605        }
1606    
1607        float* Engine::InitCurve(const float* segments, int size) {
1608            float* y = new float[size];
1609            for (int x = 0 ; x < size ; x++) {
1610                if (x > segments[2]) segments += 2;
1611                y[x] = segments[1] + (x - segments[0]) *
1612                    (segments[3] - segments[1]) / (segments[2] - segments[0]);
1613            }
1614            return y;
1615        }
1616    
1617  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
Legend:
Removed from v.829  
changed lines
  Added in v.924
  ViewVC Help
Powered by ViewVC