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iliev |
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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2011 Grigor Iliev * |
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* * |
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* 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 * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#include "SF2SignalUnitRack.h" |
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#include "Voice.h" |
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namespace LinuxSampler { namespace sf2 { |
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void EGUnit::EnterReleaseStage() { |
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update(EG::event_release, pOwner->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
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} |
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void EGUnit::CancelRelease() { |
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update(EG::event_cancel_release, pOwner->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
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} |
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void VolEGUnit::Trigger() { |
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// set the delay trigger |
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double d = pOwner->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE; |
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uiDelayTrigger = pOwner->pRegion->GetEG1PreAttackDelay(pOwner->pPresetRegion) * d; |
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//////////// |
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trigger ( |
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0, // should be in permille |
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pOwner->pRegion->GetEG1Attack(pOwner->pPresetRegion), |
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pOwner->pRegion->GetEG1Hold(pOwner->pPresetRegion), |
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pOwner->pRegion->GetEG1Decay(pOwner->pPresetRegion), |
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uint(pOwner->pRegion->GetEG1Sustain(pOwner->pPresetRegion)), |
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pOwner->pRegion->GetEG1Release(pOwner->pPresetRegion), |
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pOwner->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE |
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); |
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} |
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void VolEGUnit::Increment() { |
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if (DelayStage()) return; |
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EGUnit::Increment(); |
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if (!active()) return; |
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switch (getSegmentType()) { |
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case EG::segment_lin: |
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processLin(); |
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break; |
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case EG::segment_exp: |
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processExp(); |
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break; |
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case EG::segment_end: |
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getLevel(); |
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break; // noop |
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case EG::segment_pow: |
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processPow(); |
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break; |
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} |
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if (active()) { |
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// if sample has a loop and loop start has been reached in this subfragment, send a special event to EG1 to let it finish the attack hold stage |
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/*if (pOwner->SmplInfo.HasLoops && pOwner->Pos <= pOwner->SmplInfo.LoopStart && pOwner->SmplInfo.LoopStart < newPos) { |
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update(EG::event_hold_end, pOwner->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
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}*/ |
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// TODO: ^^^ |
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increment(1); |
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if (!toStageEndLeft()) update(EG::event_stage_end, pOwner->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
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} |
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} |
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void ModEGUnit::Trigger() { |
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double d = pOwner->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE; |
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uiDelayTrigger = pOwner->pRegion->GetEG2PreAttackDelay(pOwner->pPresetRegion) * d; |
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trigger ( |
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0, // should be in permille |
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pOwner->pRegion->GetEG2Attack(pOwner->pPresetRegion), |
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pOwner->pRegion->GetEG2Hold(pOwner->pPresetRegion), |
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pOwner->pRegion->GetEG2Decay(pOwner->pPresetRegion), |
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uint(pOwner->pRegion->GetEG2Sustain(pOwner->pPresetRegion)), |
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pOwner->pRegion->GetEG2Release(pOwner->pPresetRegion), |
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pOwner->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE |
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); |
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} |
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void ModEGUnit::Increment() { |
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if (DelayStage()) return; |
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EGUnit::Increment(); |
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if (!active()) return; |
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switch (getSegmentType()) { |
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case EG::segment_lin: |
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processLin(); |
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break; |
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case EG::segment_exp: |
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processExp(); |
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break; |
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case EG::segment_end: |
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getLevel(); |
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break; // noop |
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case EG::segment_pow: |
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processPow(); |
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break; |
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} |
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if (active()) { |
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increment(1); |
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if (!toStageEndLeft()) update(EG::event_stage_end, pOwner->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
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} |
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} |
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void VibLfoUnit::Trigger() { |
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// set the delay trigger |
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double samplerate = pOwner->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE; |
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uiDelayTrigger = pOwner->pRegion->GetDelayVibLfo(pOwner->pPresetRegion) * samplerate; |
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//////////// |
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trigger ( |
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pOwner->pRegion->GetFreqVibLfo(pOwner->pPresetRegion), |
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start_level_min, |
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pOwner->pRegion->GetVibLfoToPitch(pOwner->pPresetRegion), |
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0, false, samplerate |
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); |
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update(0); |
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} |
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void VibLfoUnit::Increment() { |
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if (DelayStage()) return; |
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SignalUnitBase<Voice>::Increment(); |
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Level = render(); |
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} |
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void EndpointUnit::Trigger() { |
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} |
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bool EndpointUnit::Active() { |
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if (Params.size() < 1) return false; |
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return Params[0].pUnit->Active(); // volEGUnit |
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} |
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float EndpointUnit::GetVolume() { |
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if (Params.size() < 1) return 0; |
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return Params[0].pUnit->Active() ? Params[0].GetFinalValue() : 0; |
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} |
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float EndpointUnit::GetFilterCutoff() { |
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return 1; |
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} |
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float EndpointUnit::GetPitch() { |
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if (Params.size() < 3) return 0; |
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double eg = Params[1].pUnit->Active() ? RTMath::CentsToFreqRatio(Params[1].GetFinalValue()) : 1; |
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double lfo = Params[2].pUnit->Active() ? RTMath::CentsToFreqRatio(Params[2].GetFinalValue()) : 1; |
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return eg * lfo; |
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} |
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float EndpointUnit::GetResonance() { |
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return 1; |
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} |
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SF2SignalUnitRack::SF2SignalUnitRack(Voice* pVoice): SignalUnitRackBase<Voice>(pVoice) { |
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Units.add(&suVolEG); |
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Units.add(&suModEG); |
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Units.add(&suVibLfo); |
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Units.add(&suEndpoint); |
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// Volume envelope |
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suEndpoint.Params.add(SignalUnit::Parameter(&suVolEG)); |
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// Modulation envelope |
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suEndpoint.Params.add(SignalUnit::Parameter(&suModEG)); |
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// Vibrato LFO |
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suEndpoint.Params.add(SignalUnit::Parameter(&suVibLfo)); |
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} |
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void SF2SignalUnitRack::Trigger() { |
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// The region settings are available after the voice is triggered |
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// Modulation envelope |
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int pitch = pOwner->pRegion->GetModEnvToPitch(pOwner->pPresetRegion); |
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suEndpoint.Params[1].Coeff = pitch; |
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/////// |
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SignalUnitRackBase<Voice>::Trigger(); |
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} |
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EndpointSignalUnit* SF2SignalUnitRack::GetEndpointUnit() { |
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return static_cast<EndpointSignalUnit*> (&suEndpoint); |
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} |
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}} // namespace LinuxSampler::sf2 |