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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 - 2007 Christian Schoenebeck * |
* Copyright (C) 2005 - 2009 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* 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 * |
183 |
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184 |
// calculate initial pitch value |
// calculate initial pitch value |
185 |
{ |
{ |
186 |
double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
double pitchbasecents = pEngineChannel->pInstrument->FineTune + pDimRgn->FineTune + pEngine->ScaleTuning[MIDIKey % 12]; |
187 |
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188 |
// GSt behaviour: maximum transpose up is 40 semitones. If |
// GSt behaviour: maximum transpose up is 40 semitones. If |
189 |
// MIDI key is more than 40 semitones above unity note, |
// MIDI key is more than 40 semitones above unity note, |
191 |
if (pDimRgn->PitchTrack && (MIDIKey - (int) pDimRgn->UnityNote) < 40) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
if (pDimRgn->PitchTrack && (MIDIKey - (int) pDimRgn->UnityNote) < 40) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
192 |
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193 |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate)); |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate)); |
194 |
this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
this->PitchBend = RTMath::CentsToFreqRatio(PitchBend / 8192.0 * 100.0 * pEngineChannel->pInstrument->PitchbendRange); |
195 |
} |
} |
196 |
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197 |
// the length of the decay and release curves are dependent on the velocity |
// the length of the decay and release curves are dependent on the velocity |
737 |
} |
} |
738 |
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739 |
void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) { |
void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) { |
740 |
const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents |
PitchBend = RTMath::CentsToFreqRatio(itEvent->Param.Pitch.Pitch / 8192.0 * 100.0 * pEngineChannel->pInstrument->PitchbendRange); |
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finalSynthesisParameters.fFinalPitch *= pitch; |
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PitchBend = pitch; |
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741 |
} |
} |
742 |
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743 |
void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) { |
void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) { |
779 |
RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first(); |
RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first(); |
780 |
RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first(); |
RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first(); |
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if (Skip) { // skip events that happened before this voice was triggered |
if (itTriggerEvent) { // skip events that happened before this voice was triggered |
783 |
while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent; |
while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent; |
784 |
while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent; |
// we can't simply compare the timestamp here, because note events |
785 |
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// might happen on the same time stamp, so we have to deal on the |
786 |
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// actual sequence the note events arrived instead (see bug #112) |
787 |
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for (; itNoteEvent; ++itNoteEvent) { |
788 |
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if (itTriggerEvent == itNoteEvent) { |
789 |
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++itNoteEvent; |
790 |
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break; |
791 |
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} |
792 |
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} |
793 |
} |
} |
794 |
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795 |
uint killPos; |
uint killPos; |
796 |
if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos); |
if (itKillEvent) { |
797 |
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int maxFadeOutPos = Samples - pEngine->MinFadeOutSamples; |
798 |
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if (maxFadeOutPos < 0) { |
799 |
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// There's not enough space in buffer to do a fade out |
800 |
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// from max volume (this can only happen for audio |
801 |
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// drivers that use Samples < MaxSamplesPerCycle). |
802 |
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// End the EG1 here, at pos 0, with a shorter max fade |
803 |
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// out time. |
804 |
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EG1.enterFadeOutStage(Samples / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
805 |
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itKillEvent = Pool<Event>::Iterator(); |
806 |
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} else { |
807 |
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killPos = RTMath::Min(itKillEvent->FragmentPos(), maxFadeOutPos); |
808 |
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} |
809 |
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} |
810 |
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811 |
uint i = Skip; |
uint i = Skip; |
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while (i < Samples) { |
while (i < Samples) { |
813 |
int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples); |
int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples); |
814 |
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815 |
// initialize all final synthesis parameters |
// initialize all final synthesis parameters |
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finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend; |
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fFinalCutoff = VCFCutoffCtrl.fvalue; |
fFinalCutoff = VCFCutoffCtrl.fvalue; |
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fFinalResonance = VCFResonanceCtrl.fvalue; |
fFinalResonance = VCFResonanceCtrl.fvalue; |
818 |
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819 |
// process MIDI control change and pitchbend events for this subfragment |
// process MIDI control change and pitchbend events for this subfragment |
820 |
processCCEvents(itCCEvent, iSubFragmentEnd); |
processCCEvents(itCCEvent, iSubFragmentEnd); |
821 |
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822 |
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finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend; |
823 |
float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render(); |
float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render(); |
824 |
#ifdef CONFIG_PROCESS_MUTED_CHANNELS |
#ifdef CONFIG_PROCESS_MUTED_CHANNELS |
825 |
if (pEngineChannel->GetMute()) fFinalVolume = 0; |
if (pEngineChannel->GetMute()) fFinalVolume = 0; |