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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 - 2009 Christian Schoenebeck * |
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* Copyright (C) 2009 Grigor Iliev * |
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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 * |
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* MA 02111-1307 USA * |
* MA 02111-1307 USA * |
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***************************************************************************/ |
***************************************************************************/ |
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#include "EGADSR.h" |
#include "../../common/Features.h" |
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#include "Manipulator.h" |
#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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#include "Voice.h" |
#include "Voice.h" |
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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
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// FIXME: no support for layers (nor crossfades) yet |
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const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
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const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask()); |
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float Voice::CalculateFilterCutoffCoeff() { |
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return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX); |
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} |
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int Voice::CalculateFilterUpdateMask() { |
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if (FILTER_UPDATE_PERIOD <= 0) return 0; |
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int power_of_two; |
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for (power_of_two = 0; 1<<power_of_two < FILTER_UPDATE_PERIOD; power_of_two++); |
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return (1 << power_of_two) - 1; |
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} |
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Voice::Voice() { |
Voice::Voice() { |
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pEngine = NULL; |
pEngine = NULL; |
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pDiskThread = NULL; |
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Active = false; |
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pEG1 = NULL; |
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pEG2 = NULL; |
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pEG3 = NULL; |
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pVCAManipulator = NULL; |
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pVCFCManipulator = NULL; |
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pVCOManipulator = NULL; |
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pLFO1 = NULL; |
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pLFO2 = NULL; |
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pLFO3 = NULL; |
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} |
} |
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Voice::~Voice() { |
Voice::~Voice() { |
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if (pEG1) delete pEG1; |
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if (pEG2) delete pEG2; |
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if (pEG3) delete pEG3; |
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if (pLFO1) delete pLFO1; |
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if (pLFO2) delete pLFO2; |
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if (pLFO3) delete pLFO3; |
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if (pVCAManipulator) delete pVCAManipulator; |
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if (pVCFCManipulator) delete pVCFCManipulator; |
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if (pVCOManipulator) delete pVCOManipulator; |
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} |
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void Voice::SetOutput(AudioOutputDevice* pAudioOutputDevice) { |
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this->pOutputLeft = pAudioOutputDevice->Channel(0)->Buffer(); |
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this->pOutputRight = pAudioOutputDevice->Channel(1)->Buffer(); |
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this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
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this->SampleRate = pAudioOutputDevice->SampleRate(); |
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} |
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void Voice::SetEngine(Engine* pEngine) { |
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this->pEngine = pEngine; |
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// delete old objects |
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if (pEG1) delete pEG1; |
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if (pEG2) delete pEG2; |
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if (pEG3) delete pEG3; |
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if (pVCAManipulator) delete pVCAManipulator; |
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if (pVCFCManipulator) delete pVCFCManipulator; |
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if (pVCOManipulator) delete pVCOManipulator; |
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if (pLFO1) delete pLFO1; |
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if (pLFO2) delete pLFO2; |
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if (pLFO3) delete pLFO3; |
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// create new ones |
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pEG1 = new EGADSR(pEngine, Event::destination_vca); |
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pEG2 = new EGADSR(pEngine, Event::destination_vcfc); |
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pEG3 = new EGDecay(pEngine, Event::destination_vco); |
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pVCAManipulator = new VCAManipulator(pEngine); |
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pVCFCManipulator = new VCFCManipulator(pEngine); |
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pVCOManipulator = new VCOManipulator(pEngine); |
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pLFO1 = new LFO<gig::VCAManipulator>(0.0f, 1.0f, LFO<VCAManipulator>::propagation_top_down, pVCAManipulator, pEngine->pEventPool); |
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pLFO2 = new LFO<gig::VCFCManipulator>(0.0f, 1.0f, LFO<VCFCManipulator>::propagation_top_down, pVCFCManipulator, pEngine->pEventPool); |
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pLFO3 = new LFO<gig::VCOManipulator>(-1200.0f, 1200.0f, LFO<VCOManipulator>::propagation_middle_balanced, pVCOManipulator, pEngine->pEventPool); // +-1 octave (+-1200 cents) max. |
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this->pDiskThread = pEngine->pDiskThread; |
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dmsg(6,("Voice::SetEngine()\n")); |
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} |
} |
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/** |
EngineChannel* Voice::GetGigEngineChannel() { |
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* Initializes and triggers the voice, a disk stream will be launched if |
return static_cast<EngineChannel*>(pEngineChannel); |
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* needed. |
} |
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* |
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* @param pNoteOnEvent - event that caused triggering of this voice |
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* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
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* @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data |
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* @returns 0 on success, a value < 0 if something failed |
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*/ |
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int Voice::Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument) { |
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if (!pInstrument) { |
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dmsg(1,("voice::trigger: !pInstrument\n")); |
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exit(EXIT_FAILURE); |
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} |
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Active = true; |
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MIDIKey = pNoteOnEvent->Key; |
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pRegion = pInstrument->GetRegion(MIDIKey); |
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PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed |
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Pos = 0; |
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Delay = pNoteOnEvent->FragmentPos(); |
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pTriggerEvent = pNoteOnEvent; |
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if (!pRegion) { |
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std::cerr << "Audio Thread: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush; |
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Kill(); |
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return -1; |
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} |
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//TODO: current MIDI controller values are not taken into account yet |
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::gig::DimensionRegion* pDimRgn = NULL; |
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for (int i = pRegion->Dimensions - 1; i >= 0; i--) { // Check if instrument has a velocity split |
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if (pRegion->pDimensionDefinitions[i].dimension == ::gig::dimension_velocity) { |
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uint DimValues[5] = {0,0,0,0,0}; |
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DimValues[i] = pNoteOnEvent->Velocity; |
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pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]); |
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break; |
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} |
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} |
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if (!pDimRgn) { // if there was no velocity split |
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pDimRgn = pRegion->GetDimensionRegionByValue(0,0,0,0,0); |
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} |
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pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
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// Check if the sample needs disk streaming or is too short for that |
void Voice::SetEngine(LinuxSampler::Engine* pEngine) { |
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long cachedsamples = pSample->GetCache().Size / pSample->FrameSize; |
Engine* engine = static_cast<Engine*>(pEngine); |
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DiskVoice = cachedsamples < pSample->SamplesTotal; |
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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if (DiskVoice) { // voice to be streamed from disk |
Voice::SampleInfo Voice::GetSampleInfo() { |
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MaxRAMPos = cachedsamples - (MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK) |
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 = pSample->SamplesTotal; |
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// check if there's a loop defined which completely fits into the cached (RAM) part of the sample |
si.HasLoops = pRegion->SampleLoops; |
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if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) { |
si.LoopStart = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart : 0; |
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RAMLoop = true; |
si.LoopLength = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0; |
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LoopCyclesLeft = pSample->LoopPlayCount; |
si.LoopPlayCount = pSample->LoopPlayCount; |
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} |
si.Unpitched = !pRegion->PitchTrack; |
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else RAMLoop = false; |
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if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) { |
return si; |
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dmsg(1,("Disk stream order failed!\n")); |
} |
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Kill(); |
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return -1; |
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} |
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dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no")); |
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} |
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else { // RAM only voice |
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MaxRAMPos = cachedsamples; |
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if (pSample->Loops) { |
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RAMLoop = true; |
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LoopCyclesLeft = pSample->LoopPlayCount; |
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} |
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else RAMLoop = false; |
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dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no")); |
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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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// calculate initial pitch value |
ri.EG1PreAttack = pRegion->EG1PreAttack; |
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{ |
ri.EG1Attack = pRegion->EG1Attack; |
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double pitchbasecents = pDimRgn->FineTune * 10; |
ri.EG1Hold = pRegion->EG1Hold; |
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if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
ri.EG1Decay1 = pRegion->EG1Decay1; |
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this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents); |
ri.EG1Decay2 = pRegion->EG1Decay2; |
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this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
ri.EG1Sustain = pRegion->EG1Sustain; |
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} |
ri.EG1InfiniteSustain = pRegion->EG1InfiniteSustain; |
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ri.EG1Release = pRegion->EG1Release; |
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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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Volume = pDimRgn->GetVelocityAttenuation(pNoteOnEvent->Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) |
ri.EG3Attack = pRegion->EG3Attack; |
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ri.EG3Depth = pRegion->EG3Depth; |
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ri.VCFEnabled = pRegion->VCFEnabled; |
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// setup EG 1 (VCA EG) |
ri.VCFType = pRegion->VCFType; |
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{ |
ri.VCFResonance = pRegion->VCFResonance; |
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// get current value of EG1 controller |
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double eg1controllervalue; |
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switch (pDimRgn->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 = 0; // TODO: aftertouch not yet supported |
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break; |
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case ::gig::eg1_ctrl_t::type_velocity: |
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eg1controllervalue = pNoteOnEvent->Velocity; |
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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 = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
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break; |
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} |
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if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
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// calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned) |
ri.ReleaseTriggerDecay = pRegion->ReleaseTriggerDecay; |
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double eg1attack = (pDimRgn->EG1ControllerAttackInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 0.0; |
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double eg1decay = (pDimRgn->EG1ControllerDecayInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence) * eg1controllervalue : 0.0; |
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double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 0.0; |
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pEG1->Trigger(pDimRgn->EG1PreAttack, |
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pDimRgn->EG1Attack + eg1attack, |
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pDimRgn->EG1Hold, |
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pSample->LoopStart, |
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pDimRgn->EG1Decay1 + eg1decay, |
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pDimRgn->EG1Decay2 + eg1decay, |
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pDimRgn->EG1InfiniteSustain, |
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pDimRgn->EG1Sustain, |
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pDimRgn->EG1Release + eg1release, |
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Delay); |
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} |
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return ri; |
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} |
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#if ENABLE_FILTER |
Voice::InstrumentInfo Voice::GetInstrumentInfo() { |
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// setup EG 2 (VCF Cutoff EG) |
InstrumentInfo ii; |
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{ |
ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune; |
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// get current value of EG2 controller |
ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange; |
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double eg2controllervalue; |
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switch (pDimRgn->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 = 0; // TODO: aftertouch not yet supported |
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break; |
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case ::gig::eg2_ctrl_t::type_velocity: |
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eg2controllervalue = pNoteOnEvent->Velocity; |
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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 = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
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break; |
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} |
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if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
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// calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned) |
return ii; |
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double eg2attack = (pDimRgn->EG2ControllerAttackInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence) * eg2controllervalue : 0.0; |
} |
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double eg2decay = (pDimRgn->EG2ControllerDecayInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence) * eg2controllervalue : 0.0; |
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double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 0.0; |
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pEG2->Trigger(pDimRgn->EG2PreAttack, |
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pDimRgn->EG2Attack + eg2attack, |
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false, |
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pSample->LoopStart, |
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pDimRgn->EG2Decay1 + eg2decay, |
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pDimRgn->EG2Decay2 + eg2decay, |
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pDimRgn->EG2InfiniteSustain, |
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pDimRgn->EG2Sustain, |
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pDimRgn->EG2Release + eg2release, |
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Delay); |
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} |
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#endif // ENABLE_FILTER |
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// setup EG 3 (VCO EG) |
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{ |
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double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth); |
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pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay); |
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} |
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113 |
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114 |
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double Voice::GetSampleAttenuation() { |
115 |
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return pRegion->SampleAttenuation; |
116 |
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} |
117 |
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118 |
// setup LFO 1 (VCA LFO) |
double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) { |
119 |
{ |
return pRegion->GetVelocityAttenuation(MIDIKeyVelocity); |
120 |
uint16_t lfo1_internal_depth; |
} |
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switch (pDimRgn->LFO1Controller) { |
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case ::gig::lfo1_ctrl_internal: |
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lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
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pLFO1->ExtController = 0; // no external controller |
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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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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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break; |
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case ::gig::lfo1_ctrl_internal_modwheel: |
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lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
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pLFO1->ExtController = 1; // MIDI controller 1 |
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break; |
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case ::gig::lfo1_ctrl_internal_breath: |
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lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
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pLFO1->ExtController = 2; // MIDI controller 2 |
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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 |
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} |
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pLFO1->Trigger(pDimRgn->LFO1Frequency, |
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lfo1_internal_depth, |
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pDimRgn->LFO1ControlDepth, |
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pEngine->ControllerTable[pLFO1->ExtController], |
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pDimRgn->LFO1FlipPhase, |
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this->SampleRate, |
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Delay); |
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} |
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#if ENABLE_FILTER |
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// setup LFO 2 (VCF Cutoff LFO) |
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{ |
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uint16_t lfo2_internal_depth; |
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switch (pDimRgn->LFO2Controller) { |
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case ::gig::lfo2_ctrl_internal: |
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lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
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pLFO2->ExtController = 0; // no external controller |
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break; |
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case ::gig::lfo2_ctrl_modwheel: |
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lfo2_internal_depth = 0; |
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pLFO2->ExtController = 1; // MIDI controller 1 |
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break; |
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case ::gig::lfo2_ctrl_foot: |
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lfo2_internal_depth = 0; |
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pLFO2->ExtController = 4; // MIDI controller 4 |
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break; |
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case ::gig::lfo2_ctrl_internal_modwheel: |
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lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
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pLFO2->ExtController = 1; // MIDI controller 1 |
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break; |
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case ::gig::lfo2_ctrl_internal_foot: |
|
|
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
|
|
pLFO2->ExtController = 4; // MIDI controller 4 |
|
|
break; |
|
|
default: |
|
|
lfo2_internal_depth = 0; |
|
|
pLFO2->ExtController = 0; // no external controller |
|
|
} |
|
|
pLFO2->Trigger(pDimRgn->LFO2Frequency, |
|
|
lfo2_internal_depth, |
|
|
pDimRgn->LFO2ControlDepth, |
|
|
pEngine->ControllerTable[pLFO2->ExtController], |
|
|
pDimRgn->LFO2FlipPhase, |
|
|
this->SampleRate, |
|
|
Delay); |
|
|
} |
|
|
#endif // ENABLE_FILTER |
|
|
|
|
|
// setup LFO 3 (VCO LFO) |
|
|
{ |
|
|
uint16_t lfo3_internal_depth; |
|
|
switch (pDimRgn->LFO3Controller) { |
|
|
case ::gig::lfo3_ctrl_internal: |
|
|
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
|
|
pLFO3->ExtController = 0; // no external controller |
|
|
break; |
|
|
case ::gig::lfo3_ctrl_modwheel: |
|
|
lfo3_internal_depth = 0; |
|
|
pLFO3->ExtController = 1; // MIDI controller 1 |
|
|
break; |
|
|
case ::gig::lfo3_ctrl_aftertouch: |
|
|
lfo3_internal_depth = 0; |
|
|
pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet |
|
|
break; |
|
|
case ::gig::lfo3_ctrl_internal_modwheel: |
|
|
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
|
|
pLFO3->ExtController = 1; // MIDI controller 1 |
|
|
break; |
|
|
case ::gig::lfo3_ctrl_internal_aftertouch: |
|
|
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
|
|
pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet |
|
|
break; |
|
|
default: |
|
|
lfo3_internal_depth = 0; |
|
|
pLFO3->ExtController = 0; // no external controller |
|
|
} |
|
|
pLFO3->Trigger(pDimRgn->LFO3Frequency, |
|
|
lfo3_internal_depth, |
|
|
pDimRgn->LFO3ControlDepth, |
|
|
pEngine->ControllerTable[pLFO3->ExtController], |
|
|
false, |
|
|
this->SampleRate, |
|
|
Delay); |
|
|
} |
|
|
|
|
|
#if ENABLE_FILTER |
|
|
#if FORCE_FILTER_USAGE |
|
|
FilterLeft.Enabled = FilterRight.Enabled = true; |
|
|
#else // use filter only if instrument file told so |
|
|
FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled; |
|
|
#endif // FORCE_FILTER_USAGE |
|
|
if (pDimRgn->VCFEnabled) { |
|
|
#ifdef OVERRIDE_FILTER_CUTOFF_CTRL |
|
|
VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL; |
|
|
#else // use the one defined in the instrument file |
|
|
switch (pDimRgn->VCFCutoffController) { |
|
|
case ::gig::vcf_cutoff_ctrl_modwheel: |
|
|
VCFCutoffCtrl.controller = 1; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_effect1: |
|
|
VCFCutoffCtrl.controller = 12; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_effect2: |
|
|
VCFCutoffCtrl.controller = 13; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_breath: |
|
|
VCFCutoffCtrl.controller = 2; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_foot: |
|
|
VCFCutoffCtrl.controller = 4; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_sustainpedal: |
|
|
VCFCutoffCtrl.controller = 64; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_softpedal: |
|
|
VCFCutoffCtrl.controller = 67; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_genpurpose7: |
|
|
VCFCutoffCtrl.controller = 82; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_genpurpose8: |
|
|
VCFCutoffCtrl.controller = 83; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_aftertouch: //TODO: not implemented yet |
|
|
case ::gig::vcf_cutoff_ctrl_none: |
|
|
default: |
|
|
VCFCutoffCtrl.controller = 0; |
|
|
break; |
|
|
} |
|
|
#endif // OVERRIDE_FILTER_CUTOFF_CTRL |
|
121 |
|
|
122 |
#ifdef OVERRIDE_FILTER_RES_CTRL |
double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) { |
123 |
VCFResonanceCtrl.controller = OVERRIDE_FILTER_RES_CTRL; |
return pRegion->GetVelocityRelease(MIDIKeyVelocity); |
124 |
#else // use the one defined in the instrument file |
} |
|
switch (pDimRgn->VCFResonanceController) { |
|
|
case ::gig::vcf_res_ctrl_genpurpose3: |
|
|
VCFResonanceCtrl.controller = 18; |
|
|
break; |
|
|
case ::gig::vcf_res_ctrl_genpurpose4: |
|
|
VCFResonanceCtrl.controller = 19; |
|
|
break; |
|
|
case ::gig::vcf_res_ctrl_genpurpose5: |
|
|
VCFResonanceCtrl.controller = 80; |
|
|
break; |
|
|
case ::gig::vcf_res_ctrl_genpurpose6: |
|
|
VCFResonanceCtrl.controller = 81; |
|
|
break; |
|
|
case ::gig::vcf_res_ctrl_none: |
|
|
default: |
|
|
VCFResonanceCtrl.controller = 0; |
|
|
} |
|
|
#endif // OVERRIDE_FILTER_RES_CTRL |
|
125 |
|
|
126 |
#ifndef OVERRIDE_FILTER_TYPE |
void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) { |
127 |
FilterLeft.SetType(pDimRgn->VCFType); |
if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event |
128 |
FilterRight.SetType(pDimRgn->VCFType); |
if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
129 |
#else // override filter type |
itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) { |
130 |
FilterLeft.SetType(OVERRIDE_FILTER_TYPE); |
CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]); |
|
FilterRight.SetType(OVERRIDE_FILTER_TYPE); |
|
|
#endif // OVERRIDE_FILTER_TYPE |
|
|
|
|
|
VCFCutoffCtrl.value = pEngine->ControllerTable[VCFCutoffCtrl.controller]; |
|
|
VCFResonanceCtrl.value = pEngine->ControllerTable[VCFResonanceCtrl.controller]; |
|
|
|
|
|
// calculate cutoff frequency |
|
|
float cutoff = (!VCFCutoffCtrl.controller) |
|
|
? exp((float) (127 - pNoteOnEvent->Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX |
|
|
: exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX; |
|
|
|
|
|
// calculate resonance |
|
|
float resonance = (float) VCFResonanceCtrl.value * 0.00787f; // 0.0..1.0 |
|
|
if (pDimRgn->VCFKeyboardTracking) { |
|
|
resonance += (float) (pNoteOnEvent->Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; |
|
131 |
} |
} |
132 |
Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0) |
} |
133 |
|
} |
134 |
|
|
135 |
VCFCutoffCtrl.fvalue = cutoff - FILTER_CUTOFF_MIN; |
void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) { |
136 |
VCFResonanceCtrl.fvalue = resonance; |
int ccvalue = itEvent->Param.CC.Value; |
137 |
|
if (VCFCutoffCtrl.value == ccvalue) return; |
138 |
|
VCFCutoffCtrl.value == ccvalue; |
139 |
|
if (pRegion->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue; |
140 |
|
if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale; |
141 |
|
float cutoff = CutoffBase * float(ccvalue); |
142 |
|
if (cutoff > 127.0f) cutoff = 127.0f; |
143 |
|
|
144 |
FilterLeft.SetParameters(cutoff, resonance, SampleRate); |
VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time |
145 |
FilterRight.SetParameters(cutoff, resonance, SampleRate); |
fFinalCutoff = cutoff; |
146 |
|
} |
147 |
|
|
148 |
FilterUpdateCounter = -1; |
double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) { |
149 |
} |
float crossfadeVolume; |
150 |
else { |
switch (pRegion->AttenuationController.type) { |
151 |
VCFCutoffCtrl.controller = 0; |
case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
152 |
VCFResonanceCtrl.controller = 0; |
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])]; |
153 |
|
break; |
154 |
|
case ::gig::attenuation_ctrl_t::type_velocity: |
155 |
|
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)]; |
156 |
|
break; |
157 |
|
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
158 |
|
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])]; |
159 |
|
break; |
160 |
|
case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined |
161 |
|
default: |
162 |
|
crossfadeVolume = 1.0f; |
163 |
} |
} |
|
#endif // ENABLE_FILTER |
|
164 |
|
|
165 |
// ************************************************ |
return crossfadeVolume; |
166 |
// TODO: ARTICULATION DATA HANDLING IS MISSING HERE |
} |
|
// ************************************************ |
|
|
|
|
|
return 0; // success |
|
|
} |
|
|
|
|
|
/** |
|
|
* Renders the audio data for this voice for the current audio fragment. |
|
|
* The sample input data can either come from RAM (cached sample or sample |
|
|
* part) or directly from disk. The output signal will be rendered by |
|
|
* resampling / interpolation. If this voice is a disk streaming voice and |
|
|
* the voice completely played back the cached RAM part of the sample, it |
|
|
* will automatically switch to disk playback for the next RenderAudio() |
|
|
* call. |
|
|
* |
|
|
* @param Samples - number of samples to be rendered in this audio fragment cycle |
|
|
*/ |
|
|
void Voice::Render(uint Samples) { |
|
|
|
|
|
// Reset the synthesis parameter matrix |
|
|
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume); |
|
|
pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase); |
|
|
#if ENABLE_FILTER |
|
|
pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue); |
|
|
pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue); |
|
|
#endif // ENABLE_FILTER |
|
|
|
|
|
|
|
|
// Apply events to the synthesis parameter matrix |
|
|
ProcessEvents(Samples); |
|
|
|
|
|
|
|
|
// Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment |
|
|
pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
|
|
#if ENABLE_FILTER |
|
|
pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
|
|
#endif // ENABLE_FILTER |
|
|
pEG3->Process(Samples); |
|
|
pLFO1->Process(Samples); |
|
|
#if ENABLE_FILTER |
|
|
pLFO2->Process(Samples); |
|
|
#endif // ENABLE_FILTER |
|
|
pLFO3->Process(Samples); |
|
|
|
|
|
|
|
|
#if ENABLE_FILTER |
|
|
CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters |
|
|
#endif // ENABLE_FILTER |
|
|
|
|
|
|
|
|
switch (this->PlaybackState) { |
|
|
|
|
|
case playback_state_ram: { |
|
|
if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
|
|
else Interpolate(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
|
|
if (DiskVoice) { |
|
|
// check if we reached the allowed limit of the sample RAM cache |
|
|
if (Pos > MaxRAMPos) { |
|
|
dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", Pos)); |
|
|
this->PlaybackState = playback_state_disk; |
|
|
} |
|
|
} |
|
|
else if (Pos >= pSample->GetCache().Size / pSample->FrameSize) { |
|
|
this->PlaybackState = playback_state_end; |
|
|
} |
|
|
} |
|
|
break; |
|
|
|
|
|
case playback_state_disk: { |
|
|
if (!DiskStreamRef.pStream) { |
|
|
// check if the disk thread created our ordered disk stream in the meantime |
|
|
DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID); |
|
|
if (!DiskStreamRef.pStream) { |
|
|
std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush; |
|
|
Kill(); |
|
|
return; |
|
|
} |
|
|
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos)); |
|
|
Pos -= RTMath::DoubleToInt(Pos); |
|
|
} |
|
|
|
|
|
// add silence sample at the end if we reached the end of the stream (for the interpolator) |
|
|
if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) { |
|
|
DiskStreamRef.pStream->WriteSilence((MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels); |
|
|
this->PlaybackState = playback_state_end; |
|
|
} |
|
|
|
|
|
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
|
|
Interpolate(Samples, ptr, Delay); |
|
|
DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); |
|
|
Pos -= RTMath::DoubleToInt(Pos); |
|
|
} |
|
|
break; |
|
|
|
|
|
case playback_state_end: |
|
|
Kill(); // free voice |
|
|
break; |
|
|
} |
|
|
|
|
|
|
|
|
#if ENABLE_FILTER |
|
|
// Reset synthesis event lists (except VCO, as VCO events apply channel wide currently) |
|
|
pEngine->pSynthesisEvents[Event::destination_vcfc]->clear(); |
|
|
pEngine->pSynthesisEvents[Event::destination_vcfr]->clear(); |
|
|
#endif // ENABLE_FILTER |
|
|
|
|
|
// Reset delay |
|
|
Delay = 0; |
|
|
|
|
|
pTriggerEvent = NULL; |
|
|
|
|
|
// If release stage finished, let the voice be killed |
|
|
if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end; |
|
|
} |
|
|
|
|
|
/** |
|
|
* Resets voice variables. Should only be called if rendering process is |
|
|
* suspended / not running. |
|
|
*/ |
|
|
void Voice::Reset() { |
|
|
pLFO1->Reset(); |
|
|
pLFO2->Reset(); |
|
|
pLFO3->Reset(); |
|
|
DiskStreamRef.pStream = NULL; |
|
|
DiskStreamRef.hStream = 0; |
|
|
DiskStreamRef.State = Stream::state_unused; |
|
|
DiskStreamRef.OrderID = 0; |
|
|
Active = false; |
|
|
} |
|
|
|
|
|
/** |
|
|
* Process the control change event lists of the engine for the current |
|
|
* audio fragment. Event values will be applied to the synthesis parameter |
|
|
* matrix. |
|
|
* |
|
|
* @param Samples - number of samples to be rendered in this audio fragment cycle |
|
|
*/ |
|
|
void Voice::ProcessEvents(uint Samples) { |
|
|
|
|
|
// dispatch control change events |
|
|
Event* pCCEvent = pEngine->pCCEvents->first(); |
|
|
if (Delay) { // skip events that happened before this voice was triggered |
|
|
while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next(); |
|
|
} |
|
|
while (pCCEvent) { |
|
|
if (pCCEvent->Controller) { // if valid MIDI controller |
|
|
#if ENABLE_FILTER |
|
|
if (pCCEvent->Controller == VCFCutoffCtrl.controller) { |
|
|
pEngine->pSynthesisEvents[Event::destination_vcfc]->alloc_assign(*pCCEvent); |
|
|
} |
|
|
if (pCCEvent->Controller == VCFResonanceCtrl.controller) { |
|
|
pEngine->pSynthesisEvents[Event::destination_vcfr]->alloc_assign(*pCCEvent); |
|
|
} |
|
|
#endif // ENABLE_FILTER |
|
|
if (pCCEvent->Controller == pLFO1->ExtController) { |
|
|
pLFO1->SendEvent(pCCEvent); |
|
|
} |
|
|
#if ENABLE_FILTER |
|
|
if (pCCEvent->Controller == pLFO2->ExtController) { |
|
|
pLFO2->SendEvent(pCCEvent); |
|
|
} |
|
|
#endif // ENABLE_FILTER |
|
|
if (pCCEvent->Controller == pLFO3->ExtController) { |
|
|
pLFO3->SendEvent(pCCEvent); |
|
|
} |
|
|
} |
|
167 |
|
|
168 |
pCCEvent = pEngine->pCCEvents->next(); |
double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) { |
169 |
|
double eg1controllervalue = 0; |
170 |
|
switch (pRegion->EG1Controller.type) { |
171 |
|
case ::gig::eg1_ctrl_t::type_none: // no controller defined |
172 |
|
eg1controllervalue = 0; |
173 |
|
break; |
174 |
|
case ::gig::eg1_ctrl_t::type_channelaftertouch: |
175 |
|
eg1controllervalue = GetGigEngineChannel()->ControllerTable[128]; |
176 |
|
break; |
177 |
|
case ::gig::eg1_ctrl_t::type_velocity: |
178 |
|
eg1controllervalue = MIDIKeyVelocity; |
179 |
|
break; |
180 |
|
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
181 |
|
eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number]; |
182 |
|
break; |
183 |
} |
} |
184 |
|
if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
185 |
|
|
186 |
|
return eg1controllervalue; |
187 |
|
} |
188 |
|
|
189 |
// process pitch events |
Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) { |
190 |
{ |
EGInfo eg; |
191 |
RTEList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco]; |
// (eg1attack is different from the others) |
192 |
Event* pVCOEvent = pVCOEventList->first(); |
eg.Attack = (pRegion->EG1ControllerAttackInfluence) ? |
193 |
if (Delay) { // skip events that happened before this voice was triggered |
1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ? |
194 |
while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next(); |
1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0; |
195 |
} |
eg.Decay = (pRegion->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence) * eg1ControllerValue : 1.0; |
196 |
// apply old pitchbend value until first pitch event occurs |
eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0; |
|
if (this->PitchBend != 1.0) { |
|
|
uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples; |
|
|
for (uint i = Delay; i < end; i++) { |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend; |
|
|
} |
|
|
} |
|
|
float pitch; |
|
|
while (pVCOEvent) { |
|
|
Event* pNextVCOEvent = pVCOEventList->next(); |
|
|
|
|
|
// calculate the influence length of this event (in sample points) |
|
|
uint end = (pNextVCOEvent) ? pNextVCOEvent->FragmentPos() : Samples; |
|
|
|
|
|
pitch = RTMath::CentsToFreqRatio(((double) pVCOEvent->Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents |
|
197 |
|
|
198 |
// apply pitch value to the pitch parameter sequence |
return eg; |
199 |
for (uint i = pVCOEvent->FragmentPos(); i < end; i++) { |
} |
|
pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch; |
|
|
} |
|
200 |
|
|
201 |
pVCOEvent = pNextVCOEvent; |
double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) { |
202 |
} |
double eg2controllervalue = 0; |
203 |
if (pVCOEventList->last()) this->PitchBend = pitch; |
switch (pRegion->EG2Controller.type) { |
204 |
|
case ::gig::eg2_ctrl_t::type_none: // no controller defined |
205 |
|
eg2controllervalue = 0; |
206 |
|
break; |
207 |
|
case ::gig::eg2_ctrl_t::type_channelaftertouch: |
208 |
|
eg2controllervalue = GetGigEngineChannel()->ControllerTable[128]; |
209 |
|
break; |
210 |
|
case ::gig::eg2_ctrl_t::type_velocity: |
211 |
|
eg2controllervalue = MIDIKeyVelocity; |
212 |
|
break; |
213 |
|
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
214 |
|
eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number]; |
215 |
|
break; |
216 |
} |
} |
217 |
|
if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
218 |
|
|
219 |
|
return eg2controllervalue; |
220 |
|
} |
221 |
|
|
222 |
#if ENABLE_FILTER |
Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) { |
223 |
// process filter cutoff events |
EGInfo eg; |
224 |
{ |
eg.Attack = (pRegion->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence) * eg2ControllerValue : 1.0; |
225 |
RTEList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
eg.Decay = (pRegion->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence) * eg2ControllerValue : 1.0; |
226 |
Event* pCutoffEvent = pCutoffEventList->first(); |
eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0; |
|
if (Delay) { // skip events that happened before this voice was triggered |
|
|
while (pCutoffEvent && pCutoffEvent->FragmentPos() <= Delay) pCutoffEvent = pCutoffEventList->next(); |
|
|
} |
|
|
float cutoff; |
|
|
while (pCutoffEvent) { |
|
|
Event* pNextCutoffEvent = pCutoffEventList->next(); |
|
|
|
|
|
// calculate the influence length of this event (in sample points) |
|
|
uint end = (pNextCutoffEvent) ? pNextCutoffEvent->FragmentPos() : Samples; |
|
|
|
|
|
cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN; |
|
227 |
|
|
228 |
// apply cutoff frequency to the cutoff parameter sequence |
return eg; |
229 |
for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) { |
} |
|
pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff; |
|
|
} |
|
230 |
|
|
231 |
pCutoffEvent = pNextCutoffEvent; |
void Voice::InitLFO1() { |
232 |
} |
uint16_t lfo1_internal_depth; |
233 |
if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time |
switch (pRegion->LFO1Controller) { |
234 |
|
case ::gig::lfo1_ctrl_internal: |
235 |
|
lfo1_internal_depth = pRegion->LFO1InternalDepth; |
236 |
|
pLFO1->ExtController = 0; // no external controller |
237 |
|
bLFO1Enabled = (lfo1_internal_depth > 0); |
238 |
|
break; |
239 |
|
case ::gig::lfo1_ctrl_modwheel: |
240 |
|
lfo1_internal_depth = 0; |
241 |
|
pLFO1->ExtController = 1; // MIDI controller 1 |
242 |
|
bLFO1Enabled = (pRegion->LFO1ControlDepth > 0); |
243 |
|
break; |
244 |
|
case ::gig::lfo1_ctrl_breath: |
245 |
|
lfo1_internal_depth = 0; |
246 |
|
pLFO1->ExtController = 2; // MIDI controller 2 |
247 |
|
bLFO1Enabled = (pRegion->LFO1ControlDepth > 0); |
248 |
|
break; |
249 |
|
case ::gig::lfo1_ctrl_internal_modwheel: |
250 |
|
lfo1_internal_depth = pRegion->LFO1InternalDepth; |
251 |
|
pLFO1->ExtController = 1; // MIDI controller 1 |
252 |
|
bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0); |
253 |
|
break; |
254 |
|
case ::gig::lfo1_ctrl_internal_breath: |
255 |
|
lfo1_internal_depth = pRegion->LFO1InternalDepth; |
256 |
|
pLFO1->ExtController = 2; // MIDI controller 2 |
257 |
|
bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0); |
258 |
|
break; |
259 |
|
default: |
260 |
|
lfo1_internal_depth = 0; |
261 |
|
pLFO1->ExtController = 0; // no external controller |
262 |
|
bLFO1Enabled = false; |
263 |
|
} |
264 |
|
if (bLFO1Enabled) { |
265 |
|
pLFO1->trigger(pRegion->LFO1Frequency, |
266 |
|
start_level_min, |
267 |
|
lfo1_internal_depth, |
268 |
|
pRegion->LFO1ControlDepth, |
269 |
|
pRegion->LFO1FlipPhase, |
270 |
|
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
271 |
|
pLFO1->update(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0); |
272 |
} |
} |
273 |
|
} |
274 |
|
|
275 |
// process filter resonance events |
void Voice::InitLFO2() { |
276 |
{ |
uint16_t lfo2_internal_depth; |
277 |
RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr]; |
switch (pRegion->LFO2Controller) { |
278 |
Event* pResonanceEvent = pResonanceEventList->first(); |
case ::gig::lfo2_ctrl_internal: |
279 |
if (Delay) { // skip events that happened before this voice was triggered |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
280 |
while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next(); |
pLFO2->ExtController = 0; // no external controller |
281 |
} |
bLFO2Enabled = (lfo2_internal_depth > 0); |
282 |
while (pResonanceEvent) { |
break; |
283 |
Event* pNextResonanceEvent = pResonanceEventList->next(); |
case ::gig::lfo2_ctrl_modwheel: |
284 |
|
lfo2_internal_depth = 0; |
285 |
// calculate the influence length of this event (in sample points) |
pLFO2->ExtController = 1; // MIDI controller 1 |
286 |
uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples; |
bLFO2Enabled = (pRegion->LFO2ControlDepth > 0); |
287 |
|
break; |
288 |
// convert absolute controller value to differential |
case ::gig::lfo2_ctrl_foot: |
289 |
int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value; |
lfo2_internal_depth = 0; |
290 |
VCFResonanceCtrl.value = pResonanceEvent->Value; |
pLFO2->ExtController = 4; // MIDI controller 4 |
291 |
|
bLFO2Enabled = (pRegion->LFO2ControlDepth > 0); |
292 |
float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
break; |
293 |
|
case ::gig::lfo2_ctrl_internal_modwheel: |
294 |
// apply cutoff frequency to the cutoff parameter sequence |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
295 |
for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) { |
pLFO2->ExtController = 1; // MIDI controller 1 |
296 |
pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta; |
bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0); |
297 |
} |
break; |
298 |
|
case ::gig::lfo2_ctrl_internal_foot: |
299 |
pResonanceEvent = pNextResonanceEvent; |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
300 |
} |
pLFO2->ExtController = 4; // MIDI controller 4 |
301 |
if (pResonanceEventList->last()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Value * 0.00787f; // needed for initialization of parameter matrix next time |
bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0); |
302 |
|
break; |
303 |
|
default: |
304 |
|
lfo2_internal_depth = 0; |
305 |
|
pLFO2->ExtController = 0; // no external controller |
306 |
|
bLFO2Enabled = false; |
307 |
|
} |
308 |
|
if (bLFO2Enabled) { |
309 |
|
pLFO2->trigger(pRegion->LFO2Frequency, |
310 |
|
start_level_max, |
311 |
|
lfo2_internal_depth, |
312 |
|
pRegion->LFO2ControlDepth, |
313 |
|
pRegion->LFO2FlipPhase, |
314 |
|
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
315 |
|
pLFO2->update(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0); |
316 |
} |
} |
|
#endif // ENABLE_FILTER |
|
317 |
} |
} |
318 |
|
|
319 |
#if ENABLE_FILTER |
void Voice::InitLFO3() { |
320 |
/** |
uint16_t lfo3_internal_depth; |
321 |
* Calculate all necessary, final biquad filter parameters. |
switch (pRegion->LFO3Controller) { |
322 |
* |
case ::gig::lfo3_ctrl_internal: |
323 |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
324 |
*/ |
pLFO3->ExtController = 0; // no external controller |
325 |
void Voice::CalculateBiquadParameters(uint Samples) { |
bLFO3Enabled = (lfo3_internal_depth > 0); |
326 |
if (!FilterLeft.Enabled) return; |
break; |
327 |
|
case ::gig::lfo3_ctrl_modwheel: |
328 |
biquad_param_t bqbase; |
lfo3_internal_depth = 0; |
329 |
biquad_param_t bqmain; |
pLFO3->ExtController = 1; // MIDI controller 1 |
330 |
float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; |
bLFO3Enabled = (pRegion->LFO3ControlDepth > 0); |
331 |
float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; |
break; |
332 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, SampleRate); |
case ::gig::lfo3_ctrl_aftertouch: |
333 |
pEngine->pBasicFilterParameters[0] = bqbase; |
lfo3_internal_depth = 0; |
334 |
pEngine->pMainFilterParameters[0] = bqmain; |
pLFO3->ExtController = 128; |
335 |
|
bLFO3Enabled = true; |
336 |
float* bq; |
break; |
337 |
for (int i = 1; i < Samples; i++) { |
case ::gig::lfo3_ctrl_internal_modwheel: |
338 |
// recalculate biquad parameters if cutoff or resonance differ from previous sample point |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
339 |
if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || |
pLFO3->ExtController = 1; // MIDI controller 1 |
340 |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) { |
bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0); |
341 |
prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; |
break; |
342 |
prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; |
case ::gig::lfo3_ctrl_internal_aftertouch: |
343 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, SampleRate); |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
344 |
} |
pLFO1->ExtController = 128; |
345 |
|
bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0); |
346 |
//same as 'pEngine->pBasicFilterParameters[i] = bqbase;' |
break; |
347 |
bq = (float*) &pEngine->pBasicFilterParameters[i]; |
default: |
348 |
bq[0] = bqbase.a1; |
lfo3_internal_depth = 0; |
349 |
bq[1] = bqbase.a2; |
pLFO3->ExtController = 0; // no external controller |
350 |
bq[2] = bqbase.b0; |
bLFO3Enabled = false; |
351 |
bq[3] = bqbase.b1; |
} |
352 |
bq[4] = bqbase.b2; |
if (bLFO3Enabled) { |
353 |
|
pLFO3->trigger(pRegion->LFO3Frequency, |
354 |
// same as 'pEngine->pMainFilterParameters[i] = bqmain;' |
start_level_mid, |
355 |
bq = (float*) &pEngine->pMainFilterParameters[i]; |
lfo3_internal_depth, |
356 |
bq[0] = bqmain.a1; |
pRegion->LFO3ControlDepth, |
357 |
bq[1] = bqmain.a2; |
false, |
358 |
bq[2] = bqmain.b0; |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
359 |
bq[3] = bqmain.b1; |
pLFO3->update(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0); |
360 |
bq[4] = bqmain.b2; |
} |
361 |
} |
} |
362 |
} |
|
363 |
#endif // ENABLE_FILTER |
float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) { |
364 |
|
float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity); |
365 |
/** |
if (pRegion->VCFKeyboardTracking) { |
366 |
* Interpolates the input audio data (no loop). |
cutoff *= exp((MIDIKeyVelocity - pRegion->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12) |
367 |
* |
} |
368 |
* @param Samples - number of sample points to be rendered in this audio |
return cutoff; |
369 |
* fragment cycle |
} |
370 |
* @param pSrc - pointer to input sample data |
|
371 |
* @param Skip - number of sample points to skip in output buffer |
float Voice::CalculateFinalCutoff(float cutoffBase) { |
372 |
*/ |
int cvalue; |
373 |
void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) { |
if (VCFCutoffCtrl.controller) { |
374 |
int i = Skip; |
cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller]; |
375 |
|
if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
376 |
// FIXME: assuming either mono or stereo |
// VCFVelocityScale in this case means Minimum cutoff |
377 |
if (this->pSample->Channels == 2) { // Stereo Sample |
if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale; |
|
while (i < Samples) { |
|
|
InterpolateOneStep_Stereo(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
378 |
} |
} |
379 |
else { // Mono Sample |
else { |
380 |
while (i < Samples) { |
cvalue = pRegion->VCFCutoff; |
|
InterpolateOneStep_Mono(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
381 |
} |
} |
382 |
|
float fco = cutoffBase * float(cvalue); |
383 |
|
if (fco > 127.0f) fco = 127.0f; |
384 |
|
|
385 |
|
return fco; |
386 |
} |
} |
387 |
|
|
388 |
/** |
uint8_t Voice::GetVCFCutoffCtrl() { |
389 |
* Interpolates the input audio data, this method honors looping. |
uint8_t ctrl; |
390 |
* |
switch (pRegion->VCFCutoffController) { |
391 |
* @param Samples - number of sample points to be rendered in this audio |
case ::gig::vcf_cutoff_ctrl_modwheel: |
392 |
* fragment cycle |
ctrl = 1; |
393 |
* @param pSrc - pointer to input sample data |
break; |
394 |
* @param Skip - number of sample points to skip in output buffer |
case ::gig::vcf_cutoff_ctrl_effect1: |
395 |
*/ |
ctrl = 12; |
396 |
void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) { |
break; |
397 |
int i = Skip; |
case ::gig::vcf_cutoff_ctrl_effect2: |
398 |
|
ctrl = 13; |
399 |
// FIXME: assuming either mono or stereo |
break; |
400 |
if (pSample->Channels == 2) { // Stereo Sample |
case ::gig::vcf_cutoff_ctrl_breath: |
401 |
if (pSample->LoopPlayCount) { |
ctrl = 2; |
402 |
// render loop (loop count limited) |
break; |
403 |
while (i < Samples && LoopCyclesLeft) { |
case ::gig::vcf_cutoff_ctrl_foot: |
404 |
InterpolateOneStep_Stereo(pSrc, i, |
ctrl = 4; |
405 |
pEngine->pSynthesisParameters[Event::destination_vca][i], |
break; |
406 |
pEngine->pSynthesisParameters[Event::destination_vco][i], |
case ::gig::vcf_cutoff_ctrl_sustainpedal: |
407 |
pEngine->pBasicFilterParameters[i], |
ctrl = 64; |
408 |
pEngine->pMainFilterParameters[i]); |
break; |
409 |
if (Pos > pSample->LoopEnd) { |
case ::gig::vcf_cutoff_ctrl_softpedal: |
410 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
ctrl = 67; |
411 |
LoopCyclesLeft--; |
break; |
412 |
} |
case ::gig::vcf_cutoff_ctrl_genpurpose7: |
413 |
} |
ctrl = 82; |
414 |
// render on without loop |
break; |
415 |
while (i < Samples) { |
case ::gig::vcf_cutoff_ctrl_genpurpose8: |
416 |
InterpolateOneStep_Stereo(pSrc, i, |
ctrl = 83; |
417 |
pEngine->pSynthesisParameters[Event::destination_vca][i], |
break; |
418 |
pEngine->pSynthesisParameters[Event::destination_vco][i], |
case ::gig::vcf_cutoff_ctrl_aftertouch: |
419 |
pEngine->pBasicFilterParameters[i], |
ctrl = 128; |
420 |
pEngine->pMainFilterParameters[i]); |
break; |
421 |
} |
case ::gig::vcf_cutoff_ctrl_none: |
422 |
} |
default: |
423 |
else { // render loop (endless loop) |
ctrl = 0; |
424 |
while (i < Samples) { |
break; |
|
InterpolateOneStep_Stereo(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize); |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
else { // Mono Sample |
|
|
if (pSample->LoopPlayCount) { |
|
|
// render loop (loop count limited) |
|
|
while (i < Samples && LoopCyclesLeft) { |
|
|
InterpolateOneStep_Mono(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
LoopCyclesLeft--; |
|
|
} |
|
|
} |
|
|
// render on without loop |
|
|
while (i < Samples) { |
|
|
InterpolateOneStep_Mono(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
|
} |
|
|
else { // render loop (endless loop) |
|
|
while (i < Samples) { |
|
|
InterpolateOneStep_Mono(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
} |
|
|
} |
|
|
} |
|
425 |
} |
} |
426 |
|
|
427 |
|
return ctrl; |
428 |
} |
} |
429 |
|
|
430 |
/** |
uint8_t Voice::GetVCFResonanceCtrl() { |
431 |
* Immediately kill the voice. |
uint8_t ctrl; |
432 |
*/ |
switch (pRegion->VCFResonanceController) { |
433 |
void Voice::Kill() { |
case ::gig::vcf_res_ctrl_genpurpose3: |
434 |
if (DiskVoice && DiskStreamRef.State != Stream::state_unused) { |
ctrl = 18; |
435 |
pDiskThread->OrderDeletionOfStream(&DiskStreamRef); |
break; |
436 |
|
case ::gig::vcf_res_ctrl_genpurpose4: |
437 |
|
ctrl = 19; |
438 |
|
break; |
439 |
|
case ::gig::vcf_res_ctrl_genpurpose5: |
440 |
|
ctrl = 80; |
441 |
|
break; |
442 |
|
case ::gig::vcf_res_ctrl_genpurpose6: |
443 |
|
ctrl = 81; |
444 |
|
break; |
445 |
|
case ::gig::vcf_res_ctrl_none: |
446 |
|
default: |
447 |
|
ctrl = 0; |
448 |
} |
} |
449 |
Reset(); |
|
450 |
|
return ctrl; |
451 |
} |
} |
452 |
|
|
453 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |