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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) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 - 2008 Christian Schoenebeck * |
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* Copyright (C) 2009 Christian Schoenebeck and Grigor Iliev * |
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* Copyright (C) 2010 - 2017 Christian Schoenebeck and Andreas Persson * |
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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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|
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#include "../../common/Features.h" |
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#include "Synthesizer.h" |
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#include "Profiler.h" |
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#include "Engine.h" |
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#include "EngineChannel.h" |
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|
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#include "Voice.h" |
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|
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namespace LinuxSampler { namespace gig { |
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|
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// sanity checks: fromGigLfoWave() assumes equally mapped enums |
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static_assert(int64_t(::gig::lfo_wave_sine) == int64_t(LFO::wave_sine), |
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"enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t"); |
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static_assert(int64_t(::gig::lfo_wave_triangle) == int64_t(LFO::wave_triangle), |
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"enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t"); |
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static_assert(int64_t(::gig::lfo_wave_saw) == int64_t(LFO::wave_saw), |
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"enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t"); |
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static_assert(int64_t(::gig::lfo_wave_square) == int64_t(LFO::wave_square), |
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"enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t"); |
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|
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// converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler) |
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inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) { |
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// simply assuming equally mapped enums on both sides |
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return static_cast<LFO::wave_t>(wave); |
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} |
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|
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// Returns true for GigaStudio's original filter types (which are resembled |
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// by LS very accurately with same frequency response and patch settings |
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// behaviour), false for our own LS specific filter implementation types. |
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constexpr bool isGStFilterType(::gig::vcf_type_t type) { |
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return type == ::gig::vcf_type_lowpass || |
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type == ::gig::vcf_type_lowpassturbo || |
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type == ::gig::vcf_type_bandpass || |
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type == ::gig::vcf_type_highpass || |
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type == ::gig::vcf_type_bandreject; |
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} |
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|
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Voice::Voice() { |
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pEngine = NULL; |
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pEG1 = &EG1; |
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pEG2 = &EG2; |
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} |
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|
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Voice::~Voice() { |
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} |
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|
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EngineChannel* Voice::GetGigEngineChannel() { |
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return static_cast<EngineChannel*>(pEngineChannel); |
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} |
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|
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void Voice::SetEngine(LinuxSampler::Engine* pEngine) { |
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Engine* engine = static_cast<Engine*>(pEngine); |
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this->pEngine = engine; |
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this->pDiskThread = engine->pDiskThread; |
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dmsg(6,("Voice::SetEngine()\n")); |
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} |
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|
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Voice::SampleInfo Voice::GetSampleInfo() { |
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SampleInfo si; |
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si.SampleRate = pSample->SamplesPerSecond; |
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si.ChannelCount = pSample->Channels; |
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si.FrameSize = pSample->FrameSize; |
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si.BitDepth = pSample->BitDepth; |
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si.TotalFrameCount = (uint)pSample->SamplesTotal; |
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|
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si.HasLoops = pRegion->SampleLoops; |
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si.LoopStart = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart : 0; |
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si.LoopLength = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0; |
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si.LoopPlayCount = pSample->LoopPlayCount; |
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si.Unpitched = !pRegion->PitchTrack; |
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|
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return si; |
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} |
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|
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Voice::RegionInfo Voice::GetRegionInfo() { |
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RegionInfo ri; |
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ri.UnityNote = pRegion->UnityNote; |
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ri.FineTune = pRegion->FineTune; |
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ri.Pan = pRegion->Pan; |
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ri.SampleStartOffset = pRegion->SampleStartOffset; |
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|
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ri.EG2PreAttack = pRegion->EG2PreAttack; |
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ri.EG2Attack = pRegion->EG2Attack; |
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ri.EG2Decay1 = pRegion->EG2Decay1; |
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ri.EG2Decay2 = pRegion->EG2Decay2; |
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ri.EG2Sustain = pRegion->EG2Sustain; |
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ri.EG2InfiniteSustain = pRegion->EG2InfiniteSustain; |
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ri.EG2Release = pRegion->EG2Release; |
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|
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ri.EG3Attack = pRegion->EG3Attack; |
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ri.EG3Depth = pRegion->EG3Depth; |
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ri.VCFEnabled = pRegion->VCFEnabled; |
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ri.VCFType = Filter::vcf_type_t(pRegion->VCFType); |
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ri.VCFResonance = pRegion->VCFResonance; |
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|
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ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay); |
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|
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return ri; |
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} |
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|
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Voice::InstrumentInfo Voice::GetInstrumentInfo() { |
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InstrumentInfo ii; |
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ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune; |
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ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange; |
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|
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return ii; |
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} |
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|
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double Voice::GetSampleAttenuation() { |
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return pRegion->SampleAttenuation; |
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} |
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|
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double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) { |
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return pRegion->GetVelocityAttenuation(MIDIKeyVelocity); |
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} |
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|
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double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) { |
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return pRegion->GetVelocityRelease(MIDIKeyVelocity); |
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} |
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|
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void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) { |
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if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event |
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if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
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itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) { |
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CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]); |
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} |
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} |
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} |
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|
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void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) { |
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if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event |
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if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) { |
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CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]); |
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} |
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} |
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} |
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|
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void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) { |
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// Not used so far |
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} |
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|
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uint8_t Voice::MinCutoff() const { |
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// If there's a cutoff controller defined then VCFVelocityScale means |
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// "minimum cutoff". If there is no MIDI controller defined for cutoff |
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// then VCFVelocityScale is already taken into account on libgig side |
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// instead by call to pRegion->GetVelocityCutoff(MIDIKeyVelocity). |
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return pRegion->VCFVelocityScale; |
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} |
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|
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// This is called on any cutoff controller changes, however not when the |
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// voice is triggered. So the initial cutoff value is retrieved by a call |
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// to CalculateFinalCutoff() instead. |
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void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) { |
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if (VCFCutoffCtrl.value == itEvent->Param.CC.Value) return; |
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float ccvalue = VCFCutoffCtrl.value = itEvent->Param.CC.Value; |
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|
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// if the selected filter type is an official GigaStudio filter type |
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// then we preserve the original (no matter how odd) historical GSt |
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// behaviour identically; for our own filter types though we deviate to |
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// more meaningful behaviours where appropriate |
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const bool isGStFilter = isGStFilterType(pRegion->VCFType); |
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|
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if (pRegion->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue; |
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if (isGStFilter) { |
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// VCFVelocityScale in this case means "minimum cutoff" for GSt |
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if (ccvalue < MinCutoff()) ccvalue = MinCutoff(); |
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} else { |
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// for our own filter types we interpret "minimum cutoff" |
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// differently: GSt handles this as a simple hard limit with the |
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// consequence that a certain range of the controller is simply |
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// dead; so for our filter types we rather remap that to |
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// restrain within the min_cutoff..127 range as well, but |
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// effectively spanned over the entire controller range (0..127) |
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// to avoid such a "dead" lower controller zone |
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ccvalue = MinCutoff() + (ccvalue / 127.f) * float(127 - MinCutoff()); |
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} |
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|
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float cutoff = CutoffBase * ccvalue; |
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if (cutoff > 127.0f) cutoff = 127.0f; |
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|
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// the filter implementations of the original GSt filter types take an |
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// abstract cutoff parameter range of 0..127, whereas our own filter |
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// types take a cutoff parameter in Hz, so remap here: |
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// 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz) |
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if (!isGStFilter) { |
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cutoff = (cutoff + 29.f) / (127.f + 29.f); |
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cutoff = cutoff * cutoff * cutoff * cutoff * 18000.f; |
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if (cutoff > 0.49f * pEngine->SampleRate) |
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cutoff = 0.49f * pEngine->SampleRate; |
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} |
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|
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fFinalCutoff = VCFCutoffCtrl.fvalue = cutoff; |
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} |
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|
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double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) { |
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float crossfadeVolume; |
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switch (pRegion->AttenuationController.type) { |
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case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
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crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])]; |
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break; |
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case ::gig::attenuation_ctrl_t::type_velocity: |
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crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)]; |
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break; |
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case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
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crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])]; |
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break; |
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case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined |
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default: |
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crossfadeVolume = 1.0f; |
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} |
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|
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return crossfadeVolume; |
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} |
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|
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double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) { |
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double eg1controllervalue = 0; |
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switch (pRegion->EG1Controller.type) { |
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case ::gig::eg1_ctrl_t::type_none: // no controller defined |
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eg1controllervalue = 0; |
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break; |
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case ::gig::eg1_ctrl_t::type_channelaftertouch: |
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eg1controllervalue = GetGigEngineChannel()->ControllerTable[128]; |
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break; |
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case ::gig::eg1_ctrl_t::type_velocity: |
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eg1controllervalue = MIDIKeyVelocity; |
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break; |
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case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
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eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number]; |
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break; |
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} |
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if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
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|
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return eg1controllervalue; |
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} |
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|
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Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) { |
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EGInfo eg; |
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// (eg1attack is different from the others) |
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if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0 |
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(pRegion->EG1ControllerAttackInfluence == 0 || |
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eg1ControllerValue <= 10)) { // strange GSt special case |
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eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger |
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} else { |
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eg.Attack = (pRegion->EG1ControllerAttackInfluence) ? |
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1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ? |
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1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0; |
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} |
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eg.Decay = (pRegion->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence) * eg1ControllerValue : 1.0; |
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eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0; |
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|
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return eg; |
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} |
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|
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double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) { |
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double eg2controllervalue = 0; |
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switch (pRegion->EG2Controller.type) { |
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case ::gig::eg2_ctrl_t::type_none: // no controller defined |
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eg2controllervalue = 0; |
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break; |
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case ::gig::eg2_ctrl_t::type_channelaftertouch: |
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eg2controllervalue = GetGigEngineChannel()->ControllerTable[128]; |
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break; |
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case ::gig::eg2_ctrl_t::type_velocity: |
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eg2controllervalue = MIDIKeyVelocity; |
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break; |
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case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
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eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number]; |
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break; |
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} |
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if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
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|
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return eg2controllervalue; |
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} |
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|
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Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) { |
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EGInfo eg; |
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eg.Attack = (pRegion->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence) * eg2ControllerValue : 1.0; |
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eg.Decay = (pRegion->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence) * eg2ControllerValue : 1.0; |
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eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0; |
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|
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return eg; |
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} |
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|
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void Voice::InitLFO1() { |
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uint16_t lfo1_internal_depth; |
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switch (pRegion->LFO1Controller) { |
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case ::gig::lfo1_ctrl_internal: |
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lfo1_internal_depth = pRegion->LFO1InternalDepth; |
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pLFO1->ExtController = 0; // no external controller |
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bLFO1Enabled = (lfo1_internal_depth > 0); |
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break; |
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case ::gig::lfo1_ctrl_modwheel: |
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lfo1_internal_depth = 0; |
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pLFO1->ExtController = 1; // MIDI controller 1 |
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bLFO1Enabled = (pRegion->LFO1ControlDepth > 0); |
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break; |
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case ::gig::lfo1_ctrl_breath: |
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lfo1_internal_depth = 0; |
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pLFO1->ExtController = 2; // MIDI controller 2 |
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bLFO1Enabled = (pRegion->LFO1ControlDepth > 0); |
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break; |
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case ::gig::lfo1_ctrl_internal_modwheel: |
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lfo1_internal_depth = pRegion->LFO1InternalDepth; |
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pLFO1->ExtController = 1; // MIDI controller 1 |
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bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0); |
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break; |
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case ::gig::lfo1_ctrl_internal_breath: |
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lfo1_internal_depth = pRegion->LFO1InternalDepth; |
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pLFO1->ExtController = 2; // MIDI controller 2 |
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bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0); |
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break; |
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default: |
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lfo1_internal_depth = 0; |
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pLFO1->ExtController = 0; // no external controller |
340 |
bLFO1Enabled = false; |
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} |
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if (bLFO1Enabled) { |
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pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm), |
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pRegion->LFO1Frequency, |
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pRegion->LFO1Phase, |
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LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029 |
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lfo1_internal_depth, |
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pRegion->LFO1ControlDepth, |
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pRegion->LFO1FlipPhase, |
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pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
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pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0); |
352 |
pLFO1->setScriptDepthFactor( |
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pNote->Override.AmpLFODepth.Value, |
354 |
pNote->Override.AmpLFODepth.Final |
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); |
356 |
if (pNote->Override.AmpLFOFreq.isFinal()) |
357 |
pLFO1->setScriptFrequencyFinal( |
358 |
pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE |
359 |
); |
360 |
else |
361 |
pLFO1->setScriptFrequencyFactor( |
362 |
pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE |
363 |
); |
364 |
} |
365 |
} |
366 |
|
367 |
void Voice::InitLFO2() { |
368 |
uint16_t lfo2_internal_depth; |
369 |
switch (pRegion->LFO2Controller) { |
370 |
case ::gig::lfo2_ctrl_internal: |
371 |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
372 |
pLFO2->ExtController = 0; // no external controller |
373 |
bLFO2Enabled = (lfo2_internal_depth > 0); |
374 |
break; |
375 |
case ::gig::lfo2_ctrl_modwheel: |
376 |
lfo2_internal_depth = 0; |
377 |
pLFO2->ExtController = 1; // MIDI controller 1 |
378 |
bLFO2Enabled = (pRegion->LFO2ControlDepth > 0); |
379 |
break; |
380 |
case ::gig::lfo2_ctrl_foot: |
381 |
lfo2_internal_depth = 0; |
382 |
pLFO2->ExtController = 4; // MIDI controller 4 |
383 |
bLFO2Enabled = (pRegion->LFO2ControlDepth > 0); |
384 |
break; |
385 |
case ::gig::lfo2_ctrl_internal_modwheel: |
386 |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
387 |
pLFO2->ExtController = 1; // MIDI controller 1 |
388 |
bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0); |
389 |
break; |
390 |
case ::gig::lfo2_ctrl_internal_foot: |
391 |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
392 |
pLFO2->ExtController = 4; // MIDI controller 4 |
393 |
bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0); |
394 |
break; |
395 |
default: |
396 |
lfo2_internal_depth = 0; |
397 |
pLFO2->ExtController = 0; // no external controller |
398 |
bLFO2Enabled = false; |
399 |
} |
400 |
if (bLFO2Enabled) { |
401 |
pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm), |
402 |
pRegion->LFO2Frequency, |
403 |
pRegion->LFO2Phase, |
404 |
LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029 |
405 |
lfo2_internal_depth, |
406 |
pRegion->LFO2ControlDepth, |
407 |
pRegion->LFO2FlipPhase, |
408 |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
409 |
pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0); |
410 |
pLFO2->setScriptDepthFactor( |
411 |
pNote->Override.CutoffLFODepth.Value, |
412 |
pNote->Override.CutoffLFODepth.Final |
413 |
); |
414 |
if (pNote->Override.CutoffLFOFreq.isFinal()) |
415 |
pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
416 |
else |
417 |
pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
418 |
} |
419 |
} |
420 |
|
421 |
void Voice::InitLFO3() { |
422 |
uint16_t lfo3_internal_depth; |
423 |
switch (pRegion->LFO3Controller) { |
424 |
case ::gig::lfo3_ctrl_internal: |
425 |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
426 |
pLFO3->ExtController = 0; // no external controller |
427 |
bLFO3Enabled = (lfo3_internal_depth > 0); |
428 |
break; |
429 |
case ::gig::lfo3_ctrl_modwheel: |
430 |
lfo3_internal_depth = 0; |
431 |
pLFO3->ExtController = 1; // MIDI controller 1 |
432 |
bLFO3Enabled = (pRegion->LFO3ControlDepth > 0); |
433 |
break; |
434 |
case ::gig::lfo3_ctrl_aftertouch: |
435 |
lfo3_internal_depth = 0; |
436 |
pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH; |
437 |
bLFO3Enabled = true; |
438 |
break; |
439 |
case ::gig::lfo3_ctrl_internal_modwheel: |
440 |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
441 |
pLFO3->ExtController = 1; // MIDI controller 1 |
442 |
bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0); |
443 |
break; |
444 |
case ::gig::lfo3_ctrl_internal_aftertouch: |
445 |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
446 |
pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH; |
447 |
bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0); |
448 |
break; |
449 |
default: |
450 |
lfo3_internal_depth = 0; |
451 |
pLFO3->ExtController = 0; // no external controller |
452 |
bLFO3Enabled = false; |
453 |
} |
454 |
if (bLFO3Enabled) { |
455 |
pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm), |
456 |
pRegion->LFO3Frequency, |
457 |
pRegion->LFO3Phase, |
458 |
LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029 |
459 |
lfo3_internal_depth, |
460 |
pRegion->LFO3ControlDepth, |
461 |
pRegion->LFO3FlipPhase, |
462 |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
463 |
pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0); |
464 |
pLFO3->setScriptDepthFactor( |
465 |
pNote->Override.PitchLFODepth.Value, |
466 |
pNote->Override.PitchLFODepth.Final |
467 |
); |
468 |
if (pNote->Override.PitchLFOFreq.isFinal()) |
469 |
pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
470 |
else |
471 |
pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
472 |
} |
473 |
} |
474 |
|
475 |
float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) { |
476 |
float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity); |
477 |
if (pRegion->VCFKeyboardTracking) { |
478 |
cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100); |
479 |
} |
480 |
return cutoff; |
481 |
} |
482 |
|
483 |
// This is just called when the voice is triggered. On any subsequent cutoff |
484 |
// controller changes ProcessCutoffEvent() is called instead. |
485 |
float Voice::CalculateFinalCutoff(float cutoffBase) { |
486 |
// if the selected filter type is an official GigaStudio filter type |
487 |
// then we preserve the original (no matter how odd) historical GSt |
488 |
// behaviour identically; for our own filter types though we deviate to |
489 |
// more meaningful behaviours where appropriate |
490 |
const bool isGStFilter = isGStFilterType(pRegion->VCFType); |
491 |
|
492 |
// get current cutoff CC or velocity value (always 0..127) |
493 |
float cvalue; |
494 |
if (VCFCutoffCtrl.controller) { |
495 |
cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller]; |
496 |
if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
497 |
if (isGStFilter) { |
498 |
// VCFVelocityScale in this case means "minimum cutoff" for GSt |
499 |
if (cvalue < MinCutoff()) cvalue = MinCutoff(); |
500 |
} else { |
501 |
// for our own filter types we interpret "minimum cutoff" |
502 |
// differently: GSt handles this as a simple hard limit with the |
503 |
// consequence that a certain range of the controller is simply |
504 |
// dead; so for our filter types we rather remap that to |
505 |
// restrain within the min_cutoff..127 range as well, but |
506 |
// effectively spanned over the entire controller range (0..127) |
507 |
// to avoid such a "dead" lower controller zone |
508 |
cvalue = MinCutoff() + (cvalue / 127.f) * float(127 - MinCutoff()); |
509 |
} |
510 |
} else { |
511 |
// in case of velocity, VCFVelocityScale parameter is already |
512 |
// handled on libgig side (so by calling |
513 |
// pRegion->GetVelocityCutoff(velo) in CalculateCutoffBase() above) |
514 |
cvalue = pRegion->VCFCutoff; |
515 |
} |
516 |
|
517 |
float fco = cutoffBase * cvalue; |
518 |
if (fco > 127.0f) fco = 127.0f; |
519 |
|
520 |
// the filter implementations of the original GSt filter types take an |
521 |
// abstract cutoff parameter range of 0..127, ... |
522 |
if (isGStFilter) |
523 |
return fco; |
524 |
|
525 |
// ... whereas our own filter types take a cutoff parameter in Hz, so |
526 |
// remap here 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz) |
527 |
fco = (fco + 29.f) / (127.f + 29.f); |
528 |
fco = fco * fco * fco * fco * 18000.f; |
529 |
if (fco > 0.49f * pEngine->SampleRate) |
530 |
fco = 0.49f * pEngine->SampleRate; |
531 |
return fco; |
532 |
} |
533 |
|
534 |
uint8_t Voice::GetVCFCutoffCtrl() { |
535 |
uint8_t ctrl; |
536 |
switch (pRegion->VCFCutoffController) { |
537 |
case ::gig::vcf_cutoff_ctrl_modwheel: |
538 |
ctrl = 1; |
539 |
break; |
540 |
case ::gig::vcf_cutoff_ctrl_effect1: |
541 |
ctrl = 12; |
542 |
break; |
543 |
case ::gig::vcf_cutoff_ctrl_effect2: |
544 |
ctrl = 13; |
545 |
break; |
546 |
case ::gig::vcf_cutoff_ctrl_breath: |
547 |
ctrl = 2; |
548 |
break; |
549 |
case ::gig::vcf_cutoff_ctrl_foot: |
550 |
ctrl = 4; |
551 |
break; |
552 |
case ::gig::vcf_cutoff_ctrl_sustainpedal: |
553 |
ctrl = 64; |
554 |
break; |
555 |
case ::gig::vcf_cutoff_ctrl_softpedal: |
556 |
ctrl = 67; |
557 |
break; |
558 |
case ::gig::vcf_cutoff_ctrl_genpurpose7: |
559 |
ctrl = 82; |
560 |
break; |
561 |
case ::gig::vcf_cutoff_ctrl_genpurpose8: |
562 |
ctrl = 83; |
563 |
break; |
564 |
case ::gig::vcf_cutoff_ctrl_aftertouch: |
565 |
ctrl = CTRL_TABLE_IDX_AFTERTOUCH; |
566 |
break; |
567 |
case ::gig::vcf_cutoff_ctrl_none: |
568 |
default: |
569 |
ctrl = 0; |
570 |
break; |
571 |
} |
572 |
|
573 |
return ctrl; |
574 |
} |
575 |
|
576 |
uint8_t Voice::GetVCFResonanceCtrl() { |
577 |
uint8_t ctrl; |
578 |
switch (pRegion->VCFResonanceController) { |
579 |
case ::gig::vcf_res_ctrl_genpurpose3: |
580 |
ctrl = 18; |
581 |
break; |
582 |
case ::gig::vcf_res_ctrl_genpurpose4: |
583 |
ctrl = 19; |
584 |
break; |
585 |
case ::gig::vcf_res_ctrl_genpurpose5: |
586 |
ctrl = 80; |
587 |
break; |
588 |
case ::gig::vcf_res_ctrl_genpurpose6: |
589 |
ctrl = 81; |
590 |
break; |
591 |
case ::gig::vcf_res_ctrl_none: |
592 |
default: |
593 |
ctrl = 0; |
594 |
} |
595 |
|
596 |
return ctrl; |
597 |
} |
598 |
|
599 |
void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) { |
600 |
EG1.setStateOptions( |
601 |
pRegion->EG1Options.AttackCancel, |
602 |
pRegion->EG1Options.AttackHoldCancel, |
603 |
pRegion->EG1Options.Decay1Cancel, |
604 |
pRegion->EG1Options.Decay2Cancel, |
605 |
pRegion->EG1Options.ReleaseCancel |
606 |
); |
607 |
EG1.trigger(pRegion->EG1PreAttack, |
608 |
(pNote && pNote->Override.Attack.isFinal()) ? |
609 |
pNote->Override.Attack.Value : |
610 |
RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack, |
611 |
pRegion->EG1Hold, |
612 |
(pNote && pNote->Override.Decay.isFinal()) ? |
613 |
pNote->Override.Decay.Value : |
614 |
pRegion->EG1Decay1 * egInfo.Decay * velrelease, |
615 |
(pNote && pNote->Override.Decay.isFinal()) ? |
616 |
pNote->Override.Decay.Value : |
617 |
pRegion->EG1Decay2 * egInfo.Decay * velrelease, |
618 |
pRegion->EG1InfiniteSustain, |
619 |
(pNote && pNote->Override.Sustain.Final) ? |
620 |
uint(pNote->Override.Sustain.Value * 1000.f) : |
621 |
pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f), |
622 |
(pNote && pNote->Override.Release.isFinal()) ? |
623 |
pNote->Override.Release.Value : |
624 |
RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release, |
625 |
velocityAttenuation, |
626 |
sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
627 |
} |
628 |
|
629 |
void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) { |
630 |
EG2.setStateOptions( |
631 |
pRegion->EG2Options.AttackCancel, |
632 |
pRegion->EG2Options.AttackHoldCancel, |
633 |
pRegion->EG2Options.Decay1Cancel, |
634 |
pRegion->EG2Options.Decay2Cancel, |
635 |
pRegion->EG2Options.ReleaseCancel |
636 |
); |
637 |
EG2.trigger(uint(RgnInfo.EG2PreAttack), |
638 |
(pNote && pNote->Override.CutoffAttack.isFinal()) ? |
639 |
pNote->Override.CutoffAttack.Value : |
640 |
RgnInfo.EG2Attack * egInfo.Attack, |
641 |
false, |
642 |
(pNote && pNote->Override.CutoffDecay.isFinal()) ? |
643 |
pNote->Override.CutoffDecay.Value : |
644 |
RgnInfo.EG2Decay1 * egInfo.Decay * velrelease, |
645 |
(pNote && pNote->Override.CutoffDecay.isFinal()) ? |
646 |
pNote->Override.CutoffDecay.Value : |
647 |
RgnInfo.EG2Decay2 * egInfo.Decay * velrelease, |
648 |
RgnInfo.EG2InfiniteSustain, |
649 |
(pNote && pNote->Override.CutoffSustain.Final) ? |
650 |
uint(pNote->Override.CutoffSustain.Value * 1000.f) : |
651 |
uint(RgnInfo.EG2Sustain), |
652 |
(pNote && pNote->Override.CutoffRelease.isFinal()) ? |
653 |
pNote->Override.CutoffRelease.Value : |
654 |
RgnInfo.EG2Release * egInfo.Release * velrelease, |
655 |
velocityAttenuation, |
656 |
sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
657 |
} |
658 |
|
659 |
void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) { |
660 |
dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type)); |
661 |
|
662 |
// TODO: The SustainPedal condition could be wrong, maybe the |
663 |
// check should be if this Voice is in release stage or is a |
664 |
// release sample instead. Need to test this in GSt. |
665 |
// -- Andreas |
666 |
// |
667 |
// Commented sustain pedal check out. I don't think voices of the same |
668 |
// note should be stopped at all, because it doesn't sound naturally |
669 |
// with a drumkit. |
670 |
// -- Christian, 2013-01-08 |
671 |
if (itEvent->Param.Note.Key != HostKey() /*|| |
672 |
!GetGigEngineChannel()->SustainPedal*/) { |
673 |
dmsg(4,("Voice %p - kill", (void*)this)); |
674 |
|
675 |
// kill the voice fast |
676 |
pEG1->enterFadeOutStage(); |
677 |
} |
678 |
} |
679 |
|
680 |
void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) { |
681 |
EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate); |
682 |
} |
683 |
|
684 |
int Voice::CalculatePan(uint8_t pan) { |
685 |
int p; |
686 |
// Gst behaviour: -64 and 63 are special cases |
687 |
if (RgnInfo.Pan == -64) p = pan * 2 - 127; |
688 |
else if (RgnInfo.Pan == 63) p = pan * 2; |
689 |
else p = pan + RgnInfo.Pan; |
690 |
|
691 |
if (p < 0) return 0; |
692 |
if (p > 127) return 127; |
693 |
return p; |
694 |
} |
695 |
|
696 |
release_trigger_t Voice::GetReleaseTriggerFlags() { |
697 |
release_trigger_t flags = |
698 |
(pRegion->NoNoteOffReleaseTrigger) ? |
699 |
release_trigger_none : release_trigger_noteoff; //HACK: currently this method is actually only called by EngineBase if it already knows that this voice requires release trigger, so I took the short way instead of checking (again) the existence of a ::gig::dimension_releasetrigger |
700 |
switch (pRegion->SustainReleaseTrigger) { |
701 |
case ::gig::sust_rel_trg_none: |
702 |
break; |
703 |
case ::gig::sust_rel_trg_maxvelocity: |
704 |
flags |= release_trigger_sustain_maxvelocity; |
705 |
break; |
706 |
case ::gig::sust_rel_trg_keyvelocity: |
707 |
flags |= release_trigger_sustain_keyvelocity; |
708 |
break; |
709 |
} |
710 |
return flags; |
711 |
} |
712 |
|
713 |
}} // namespace LinuxSampler::gig |