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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 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
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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 "Voice.h" |
#include "Voice.h" |
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const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
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() { |
float Voice::CalculateFilterCutoffCoeff() { |
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return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX); |
return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN); |
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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; |
pDiskThread = NULL; |
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PlaybackState = playback_state_end; |
PlaybackState = playback_state_end; |
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pEG1 = NULL; |
pLFO1 = new LFOUnsigned(1.0f); // amplitude EG (0..1 range) |
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pEG2 = NULL; |
pLFO2 = new LFOUnsigned(1.0f); // filter EG (0..1 range) |
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pEG3 = NULL; |
pLFO3 = new LFOSigned(1200.0f); // pitch EG (-1200..+1200 range) |
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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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KeyGroup = 0; |
KeyGroup = 0; |
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SynthesisMode = 0; // set all mode bits to 0 first |
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// select synthesis implementation (currently either pure C++ or MMX+SSE(1)) |
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#if CONFIG_ASM && ARCH_X86 |
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SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE()); |
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#else |
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SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false); |
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#endif |
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SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, Profiler::isEnabled()); |
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finalSynthesisParameters.filterLeft.Reset(); |
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finalSynthesisParameters.filterRight.Reset(); |
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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; |
if (pLFO1) delete pLFO1; |
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if (pLFO2) delete pLFO2; |
if (pLFO2) delete pLFO2; |
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if (pLFO3) delete pLFO3; |
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::SetEngine(Engine* pEngine) { |
void Voice::SetEngine(Engine* pEngine) { |
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this->pEngine = pEngine; |
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; |
this->pDiskThread = pEngine->pDiskThread; |
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dmsg(6,("Voice::SetEngine()\n")); |
dmsg(6,("Voice::SetEngine()\n")); |
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} |
} |
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* Initializes and triggers the voice, a disk stream will be launched if |
* Initializes and triggers the voice, a disk stream will be launched if |
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* needed. |
* needed. |
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* |
* |
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* @param itNoteOnEvent - event that caused triggering of this voice |
* @param pEngineChannel - engine channel on which this voice was ordered |
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* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
* @param itNoteOnEvent - event that caused triggering of this voice |
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* @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data |
* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
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* @param iLayer - layer number this voice refers to (only if this is a layered sound of course) |
* @param pDimRgn - points to the dimension region which provides sample wave(s) and articulation data |
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* @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false) |
* @param VoiceType - type of this voice |
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* @returns 0 on success, a value < 0 if something failed |
* @param iKeyGroup - a value > 0 defines a key group in which this voice is member of |
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* @returns 0 on success, a value < 0 if the voice wasn't triggered |
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* (either due to an error or e.g. because no region is |
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* defined for the given key) |
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*/ |
*/ |
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int Voice::Trigger(Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice) { |
int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) { |
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if (!pInstrument) { |
this->pEngineChannel = pEngineChannel; |
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dmsg(1,("voice::trigger: !pInstrument\n")); |
this->pDimRgn = pDimRgn; |
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exit(EXIT_FAILURE); |
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#if CONFIG_DEVMODE |
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if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging |
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dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n")); |
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} |
} |
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#endif // CONFIG_DEVMODE |
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Type = type_normal; |
Type = VoiceType; |
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MIDIKey = itNoteOnEvent->Param.Note.Key; |
MIDIKey = itNoteOnEvent->Param.Note.Key; |
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pRegion = pInstrument->GetRegion(MIDIKey); |
PlaybackState = playback_state_init; // mark voice as triggered, but no audio rendered yet |
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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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Delay = itNoteOnEvent->FragmentPos(); |
Delay = itNoteOnEvent->FragmentPos(); |
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itTriggerEvent = itNoteOnEvent; |
itTriggerEvent = itNoteOnEvent; |
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itKillEvent = Pool<Event>::Iterator(); |
itKillEvent = Pool<Event>::Iterator(); |
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itChildVoice = Pool<Voice>::Iterator(); |
KeyGroup = iKeyGroup; |
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pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
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if (!pRegion) { |
// calculate volume |
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std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush; |
const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity); |
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KillImmediately(); |
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return -1; |
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} |
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KeyGroup = pRegion->KeyGroup; |
Volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) |
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// get current dimension values to select the right dimension region |
Volume *= pDimRgn->SampleAttenuation; |
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//FIXME: controller values for selecting the dimension region here are currently not sample accurate |
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uint DimValues[5] = {0,0,0,0,0}; |
// the volume of release triggered samples depends on note length |
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for (int i = pRegion->Dimensions - 1; i >= 0; i--) { |
if (Type == type_release_trigger) { |
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switch (pRegion->pDimensionDefinitions[i].dimension) { |
float noteLength = float(pEngine->FrameTime + Delay - |
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case ::gig::dimension_samplechannel: |
pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate; |
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DimValues[i] = 0; //TODO: we currently ignore this dimension |
float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength; |
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break; |
if (attenuation <= 0) return -1; |
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case ::gig::dimension_layer: |
Volume *= attenuation; |
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DimValues[i] = iLayer; |
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// if this is the 1st layer then spawn further voices for all the other layers |
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if (iLayer == 0) |
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for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
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itChildVoice = pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice); |
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break; |
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case ::gig::dimension_velocity: |
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DimValues[i] = itNoteOnEvent->Param.Note.Velocity; |
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break; |
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case ::gig::dimension_channelaftertouch: |
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DimValues[i] = 0; //TODO: we currently ignore this dimension |
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break; |
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case ::gig::dimension_releasetrigger: |
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Type = (ReleaseTriggerVoice) ? type_release_trigger : (!iLayer) ? type_release_trigger_required : type_normal; |
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DimValues[i] = (uint) ReleaseTriggerVoice; |
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break; |
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case ::gig::dimension_keyboard: |
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DimValues[i] = (uint) itNoteOnEvent->Param.Note.Key; |
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break; |
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case ::gig::dimension_modwheel: |
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DimValues[i] = pEngine->ControllerTable[1]; |
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break; |
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case ::gig::dimension_breath: |
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DimValues[i] = pEngine->ControllerTable[2]; |
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break; |
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case ::gig::dimension_foot: |
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DimValues[i] = pEngine->ControllerTable[4]; |
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break; |
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case ::gig::dimension_portamentotime: |
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DimValues[i] = pEngine->ControllerTable[5]; |
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break; |
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case ::gig::dimension_effect1: |
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DimValues[i] = pEngine->ControllerTable[12]; |
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break; |
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case ::gig::dimension_effect2: |
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DimValues[i] = pEngine->ControllerTable[13]; |
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break; |
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case ::gig::dimension_genpurpose1: |
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DimValues[i] = pEngine->ControllerTable[16]; |
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break; |
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case ::gig::dimension_genpurpose2: |
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DimValues[i] = pEngine->ControllerTable[17]; |
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break; |
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case ::gig::dimension_genpurpose3: |
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DimValues[i] = pEngine->ControllerTable[18]; |
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break; |
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case ::gig::dimension_genpurpose4: |
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DimValues[i] = pEngine->ControllerTable[19]; |
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break; |
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case ::gig::dimension_sustainpedal: |
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DimValues[i] = pEngine->ControllerTable[64]; |
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break; |
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case ::gig::dimension_portamento: |
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DimValues[i] = pEngine->ControllerTable[65]; |
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break; |
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case ::gig::dimension_sostenutopedal: |
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DimValues[i] = pEngine->ControllerTable[66]; |
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break; |
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case ::gig::dimension_softpedal: |
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DimValues[i] = pEngine->ControllerTable[67]; |
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break; |
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case ::gig::dimension_genpurpose5: |
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DimValues[i] = pEngine->ControllerTable[80]; |
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break; |
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case ::gig::dimension_genpurpose6: |
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DimValues[i] = pEngine->ControllerTable[81]; |
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break; |
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case ::gig::dimension_genpurpose7: |
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DimValues[i] = pEngine->ControllerTable[82]; |
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break; |
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case ::gig::dimension_genpurpose8: |
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DimValues[i] = pEngine->ControllerTable[83]; |
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break; |
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case ::gig::dimension_effect1depth: |
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DimValues[i] = pEngine->ControllerTable[91]; |
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break; |
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case ::gig::dimension_effect2depth: |
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DimValues[i] = pEngine->ControllerTable[92]; |
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break; |
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case ::gig::dimension_effect3depth: |
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DimValues[i] = pEngine->ControllerTable[93]; |
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break; |
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case ::gig::dimension_effect4depth: |
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DimValues[i] = pEngine->ControllerTable[94]; |
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break; |
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case ::gig::dimension_effect5depth: |
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DimValues[i] = pEngine->ControllerTable[95]; |
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break; |
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case ::gig::dimension_none: |
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std::cerr << "gig::Voice::Trigger() Error: dimension=none\n" << std::flush; |
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break; |
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default: |
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std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush; |
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} |
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} |
} |
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pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]); |
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// select channel mode (mono or stereo) |
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SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2); |
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// get starting crossfade volume level |
// get starting crossfade volume level |
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switch (pDimRgn->AttenuationController.type) { |
switch (pDimRgn->AttenuationController.type) { |
129 |
CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity); |
CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity); |
130 |
break; |
break; |
131 |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
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CrossfadeVolume = CrossfadeAttenuation(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
CrossfadeVolume = CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
133 |
break; |
break; |
134 |
case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined |
case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined |
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default: |
default: |
139 |
PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
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PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
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pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
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Pos = pDimRgn->SampleStartOffset; |
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Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
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// Check if the sample needs disk streaming or is too short for that |
// Check if the sample needs disk streaming or is too short for that |
146 |
long cachedsamples = pSample->GetCache().Size / pSample->FrameSize; |
long cachedsamples = pSample->GetCache().Size / pSample->FrameSize; |
147 |
DiskVoice = cachedsamples < pSample->SamplesTotal; |
DiskVoice = cachedsamples < pSample->SamplesTotal; |
148 |
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149 |
if (DiskVoice) { // voice to be streamed from disk |
if (DiskVoice) { // voice to be streamed from disk |
150 |
MaxRAMPos = cachedsamples - (pEngine->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) |
MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_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) |
151 |
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152 |
// check if there's a loop defined which completely fits into the cached (RAM) part of the sample |
// check if there's a loop defined which completely fits into the cached (RAM) part of the sample |
153 |
if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) { |
if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) { |
154 |
RAMLoop = true; |
RAMLoop = true; |
155 |
LoopCyclesLeft = pSample->LoopPlayCount; |
loop.uiTotalCycles = pSample->LoopPlayCount; |
156 |
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loop.uiCyclesLeft = pSample->LoopPlayCount; |
157 |
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loop.uiStart = pSample->LoopStart; |
158 |
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loop.uiEnd = pSample->LoopEnd; |
159 |
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loop.uiSize = pSample->LoopSize; |
160 |
} |
} |
161 |
else RAMLoop = false; |
else RAMLoop = false; |
162 |
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170 |
else { // RAM only voice |
else { // RAM only voice |
171 |
MaxRAMPos = cachedsamples; |
MaxRAMPos = cachedsamples; |
172 |
if (pSample->Loops) { |
if (pSample->Loops) { |
173 |
RAMLoop = true; |
RAMLoop = true; |
174 |
LoopCyclesLeft = pSample->LoopPlayCount; |
loop.uiCyclesLeft = pSample->LoopPlayCount; |
175 |
} |
} |
176 |
else RAMLoop = false; |
else RAMLoop = false; |
177 |
dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no")); |
dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no")); |
180 |
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181 |
// calculate initial pitch value |
// calculate initial pitch value |
182 |
{ |
{ |
183 |
double pitchbasecents = pDimRgn->FineTune * 10 + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
184 |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
185 |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate)); |
186 |
this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
187 |
} |
} |
188 |
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189 |
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// the length of the decay and release curves are dependent on the velocity |
190 |
Volume = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) |
const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity); |
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191 |
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192 |
// setup EG 1 (VCA EG) |
// setup EG 1 (VCA EG) |
193 |
{ |
{ |
204 |
eg1controllervalue = itNoteOnEvent->Param.Note.Velocity; |
eg1controllervalue = itNoteOnEvent->Param.Note.Velocity; |
205 |
break; |
break; |
206 |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
207 |
eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
eg1controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
208 |
break; |
break; |
209 |
} |
} |
210 |
if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
211 |
|
|
212 |
// calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned) |
// calculate influence of EG1 controller on EG1's parameters |
213 |
double eg1attack = (pDimRgn->EG1ControllerAttackInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 0.0; |
// (eg1attack is different from the others) |
214 |
double eg1decay = (pDimRgn->EG1ControllerDecayInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence) * eg1controllervalue : 0.0; |
double eg1attack = (pDimRgn->EG1ControllerAttackInfluence) ? |
215 |
double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 0.0; |
1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ? |
216 |
|
1 : 1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0; |
217 |
pEG1->Trigger(pDimRgn->EG1PreAttack, |
double eg1decay = (pDimRgn->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence) * eg1controllervalue : 1.0; |
218 |
pDimRgn->EG1Attack + eg1attack, |
double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 1.0; |
219 |
pDimRgn->EG1Hold, |
|
220 |
pSample->LoopStart, |
EG1.trigger(pDimRgn->EG1PreAttack, |
221 |
pDimRgn->EG1Decay1 + eg1decay, |
pDimRgn->EG1Attack * eg1attack, |
222 |
pDimRgn->EG1Decay2 + eg1decay, |
pDimRgn->EG1Hold, |
223 |
pDimRgn->EG1InfiniteSustain, |
pDimRgn->EG1Decay1 * eg1decay * velrelease, |
224 |
pDimRgn->EG1Sustain, |
pDimRgn->EG1Decay2 * eg1decay * velrelease, |
225 |
pDimRgn->EG1Release + eg1release, |
pDimRgn->EG1InfiniteSustain, |
226 |
Delay); |
pDimRgn->EG1Sustain, |
227 |
|
pDimRgn->EG1Release * eg1release * velrelease, |
228 |
|
velocityAttenuation, |
229 |
|
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
230 |
} |
} |
231 |
|
|
232 |
|
|
|
#if ENABLE_FILTER |
|
233 |
// setup EG 2 (VCF Cutoff EG) |
// setup EG 2 (VCF Cutoff EG) |
234 |
{ |
{ |
235 |
// get current value of EG2 controller |
// get current value of EG2 controller |
245 |
eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; |
eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; |
246 |
break; |
break; |
247 |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
248 |
eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
249 |
break; |
break; |
250 |
} |
} |
251 |
if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
252 |
|
|
253 |
// calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned) |
// calculate influence of EG2 controller on EG2's parameters |
254 |
double eg2attack = (pDimRgn->EG2ControllerAttackInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence) * eg2controllervalue : 0.0; |
double eg2attack = (pDimRgn->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence) * eg2controllervalue : 1.0; |
255 |
double eg2decay = (pDimRgn->EG2ControllerDecayInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence) * eg2controllervalue : 0.0; |
double eg2decay = (pDimRgn->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence) * eg2controllervalue : 1.0; |
256 |
double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 0.0; |
double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0; |
257 |
|
|
258 |
pEG2->Trigger(pDimRgn->EG2PreAttack, |
EG2.trigger(pDimRgn->EG2PreAttack, |
259 |
pDimRgn->EG2Attack + eg2attack, |
pDimRgn->EG2Attack * eg2attack, |
260 |
false, |
false, |
261 |
pSample->LoopStart, |
pDimRgn->EG2Decay1 * eg2decay * velrelease, |
262 |
pDimRgn->EG2Decay1 + eg2decay, |
pDimRgn->EG2Decay2 * eg2decay * velrelease, |
263 |
pDimRgn->EG2Decay2 + eg2decay, |
pDimRgn->EG2InfiniteSustain, |
264 |
pDimRgn->EG2InfiniteSustain, |
pDimRgn->EG2Sustain, |
265 |
pDimRgn->EG2Sustain, |
pDimRgn->EG2Release * eg2release * velrelease, |
266 |
pDimRgn->EG2Release + eg2release, |
velocityAttenuation, |
267 |
Delay); |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
268 |
} |
} |
|
#endif // ENABLE_FILTER |
|
269 |
|
|
270 |
|
|
271 |
// setup EG 3 (VCO EG) |
// setup EG 3 (VCO EG) |
272 |
{ |
{ |
273 |
double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth); |
double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth); |
274 |
pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay); |
EG3.trigger(eg3depth, pDimRgn->EG3Attack, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
275 |
} |
} |
276 |
|
|
277 |
|
|
282 |
case ::gig::lfo1_ctrl_internal: |
case ::gig::lfo1_ctrl_internal: |
283 |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
284 |
pLFO1->ExtController = 0; // no external controller |
pLFO1->ExtController = 0; // no external controller |
285 |
|
bLFO1Enabled = (lfo1_internal_depth > 0); |
286 |
break; |
break; |
287 |
case ::gig::lfo1_ctrl_modwheel: |
case ::gig::lfo1_ctrl_modwheel: |
288 |
lfo1_internal_depth = 0; |
lfo1_internal_depth = 0; |
289 |
pLFO1->ExtController = 1; // MIDI controller 1 |
pLFO1->ExtController = 1; // MIDI controller 1 |
290 |
|
bLFO1Enabled = (pDimRgn->LFO1ControlDepth > 0); |
291 |
break; |
break; |
292 |
case ::gig::lfo1_ctrl_breath: |
case ::gig::lfo1_ctrl_breath: |
293 |
lfo1_internal_depth = 0; |
lfo1_internal_depth = 0; |
294 |
pLFO1->ExtController = 2; // MIDI controller 2 |
pLFO1->ExtController = 2; // MIDI controller 2 |
295 |
|
bLFO1Enabled = (pDimRgn->LFO1ControlDepth > 0); |
296 |
break; |
break; |
297 |
case ::gig::lfo1_ctrl_internal_modwheel: |
case ::gig::lfo1_ctrl_internal_modwheel: |
298 |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
299 |
pLFO1->ExtController = 1; // MIDI controller 1 |
pLFO1->ExtController = 1; // MIDI controller 1 |
300 |
|
bLFO1Enabled = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0); |
301 |
break; |
break; |
302 |
case ::gig::lfo1_ctrl_internal_breath: |
case ::gig::lfo1_ctrl_internal_breath: |
303 |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
304 |
pLFO1->ExtController = 2; // MIDI controller 2 |
pLFO1->ExtController = 2; // MIDI controller 2 |
305 |
|
bLFO1Enabled = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0); |
306 |
break; |
break; |
307 |
default: |
default: |
308 |
lfo1_internal_depth = 0; |
lfo1_internal_depth = 0; |
309 |
pLFO1->ExtController = 0; // no external controller |
pLFO1->ExtController = 0; // no external controller |
310 |
|
bLFO1Enabled = false; |
311 |
} |
} |
312 |
pLFO1->Trigger(pDimRgn->LFO1Frequency, |
if (bLFO1Enabled) pLFO1->trigger(pDimRgn->LFO1Frequency, |
313 |
lfo1_internal_depth, |
start_level_max, |
314 |
pDimRgn->LFO1ControlDepth, |
lfo1_internal_depth, |
315 |
pEngine->ControllerTable[pLFO1->ExtController], |
pDimRgn->LFO1ControlDepth, |
316 |
pDimRgn->LFO1FlipPhase, |
pDimRgn->LFO1FlipPhase, |
317 |
pEngine->SampleRate, |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
Delay); |
|
318 |
} |
} |
319 |
|
|
320 |
#if ENABLE_FILTER |
|
321 |
// setup LFO 2 (VCF Cutoff LFO) |
// setup LFO 2 (VCF Cutoff LFO) |
322 |
{ |
{ |
323 |
uint16_t lfo2_internal_depth; |
uint16_t lfo2_internal_depth; |
325 |
case ::gig::lfo2_ctrl_internal: |
case ::gig::lfo2_ctrl_internal: |
326 |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
327 |
pLFO2->ExtController = 0; // no external controller |
pLFO2->ExtController = 0; // no external controller |
328 |
|
bLFO2Enabled = (lfo2_internal_depth > 0); |
329 |
break; |
break; |
330 |
case ::gig::lfo2_ctrl_modwheel: |
case ::gig::lfo2_ctrl_modwheel: |
331 |
lfo2_internal_depth = 0; |
lfo2_internal_depth = 0; |
332 |
pLFO2->ExtController = 1; // MIDI controller 1 |
pLFO2->ExtController = 1; // MIDI controller 1 |
333 |
|
bLFO2Enabled = (pDimRgn->LFO2ControlDepth > 0); |
334 |
break; |
break; |
335 |
case ::gig::lfo2_ctrl_foot: |
case ::gig::lfo2_ctrl_foot: |
336 |
lfo2_internal_depth = 0; |
lfo2_internal_depth = 0; |
337 |
pLFO2->ExtController = 4; // MIDI controller 4 |
pLFO2->ExtController = 4; // MIDI controller 4 |
338 |
|
bLFO2Enabled = (pDimRgn->LFO2ControlDepth > 0); |
339 |
break; |
break; |
340 |
case ::gig::lfo2_ctrl_internal_modwheel: |
case ::gig::lfo2_ctrl_internal_modwheel: |
341 |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
342 |
pLFO2->ExtController = 1; // MIDI controller 1 |
pLFO2->ExtController = 1; // MIDI controller 1 |
343 |
|
bLFO2Enabled = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0); |
344 |
break; |
break; |
345 |
case ::gig::lfo2_ctrl_internal_foot: |
case ::gig::lfo2_ctrl_internal_foot: |
346 |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
347 |
pLFO2->ExtController = 4; // MIDI controller 4 |
pLFO2->ExtController = 4; // MIDI controller 4 |
348 |
|
bLFO2Enabled = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0); |
349 |
break; |
break; |
350 |
default: |
default: |
351 |
lfo2_internal_depth = 0; |
lfo2_internal_depth = 0; |
352 |
pLFO2->ExtController = 0; // no external controller |
pLFO2->ExtController = 0; // no external controller |
353 |
|
bLFO2Enabled = false; |
354 |
} |
} |
355 |
pLFO2->Trigger(pDimRgn->LFO2Frequency, |
if (bLFO2Enabled) pLFO2->trigger(pDimRgn->LFO2Frequency, |
356 |
lfo2_internal_depth, |
start_level_max, |
357 |
pDimRgn->LFO2ControlDepth, |
lfo2_internal_depth, |
358 |
pEngine->ControllerTable[pLFO2->ExtController], |
pDimRgn->LFO2ControlDepth, |
359 |
pDimRgn->LFO2FlipPhase, |
pDimRgn->LFO2FlipPhase, |
360 |
pEngine->SampleRate, |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
Delay); |
|
361 |
} |
} |
362 |
#endif // ENABLE_FILTER |
|
363 |
|
|
364 |
// setup LFO 3 (VCO LFO) |
// setup LFO 3 (VCO LFO) |
365 |
{ |
{ |
368 |
case ::gig::lfo3_ctrl_internal: |
case ::gig::lfo3_ctrl_internal: |
369 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
370 |
pLFO3->ExtController = 0; // no external controller |
pLFO3->ExtController = 0; // no external controller |
371 |
|
bLFO3Enabled = (lfo3_internal_depth > 0); |
372 |
break; |
break; |
373 |
case ::gig::lfo3_ctrl_modwheel: |
case ::gig::lfo3_ctrl_modwheel: |
374 |
lfo3_internal_depth = 0; |
lfo3_internal_depth = 0; |
375 |
pLFO3->ExtController = 1; // MIDI controller 1 |
pLFO3->ExtController = 1; // MIDI controller 1 |
376 |
|
bLFO3Enabled = (pDimRgn->LFO3ControlDepth > 0); |
377 |
break; |
break; |
378 |
case ::gig::lfo3_ctrl_aftertouch: |
case ::gig::lfo3_ctrl_aftertouch: |
379 |
lfo3_internal_depth = 0; |
lfo3_internal_depth = 0; |
380 |
pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet |
pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet |
381 |
|
bLFO3Enabled = false; // see TODO comment in line above |
382 |
break; |
break; |
383 |
case ::gig::lfo3_ctrl_internal_modwheel: |
case ::gig::lfo3_ctrl_internal_modwheel: |
384 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
385 |
pLFO3->ExtController = 1; // MIDI controller 1 |
pLFO3->ExtController = 1; // MIDI controller 1 |
386 |
|
bLFO3Enabled = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0); |
387 |
break; |
break; |
388 |
case ::gig::lfo3_ctrl_internal_aftertouch: |
case ::gig::lfo3_ctrl_internal_aftertouch: |
389 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
390 |
pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet |
pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet |
391 |
|
bLFO3Enabled = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above |
392 |
break; |
break; |
393 |
default: |
default: |
394 |
lfo3_internal_depth = 0; |
lfo3_internal_depth = 0; |
395 |
pLFO3->ExtController = 0; // no external controller |
pLFO3->ExtController = 0; // no external controller |
396 |
|
bLFO3Enabled = false; |
397 |
} |
} |
398 |
pLFO3->Trigger(pDimRgn->LFO3Frequency, |
if (bLFO3Enabled) pLFO3->trigger(pDimRgn->LFO3Frequency, |
399 |
lfo3_internal_depth, |
start_level_mid, |
400 |
pDimRgn->LFO3ControlDepth, |
lfo3_internal_depth, |
401 |
pEngine->ControllerTable[pLFO3->ExtController], |
pDimRgn->LFO3ControlDepth, |
402 |
false, |
false, |
403 |
pEngine->SampleRate, |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
Delay); |
|
404 |
} |
} |
405 |
|
|
406 |
#if ENABLE_FILTER |
|
407 |
#if FORCE_FILTER_USAGE |
#if CONFIG_FORCE_FILTER |
408 |
FilterLeft.Enabled = FilterRight.Enabled = true; |
const bool bUseFilter = true; |
409 |
#else // use filter only if instrument file told so |
#else // use filter only if instrument file told so |
410 |
FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled; |
const bool bUseFilter = pDimRgn->VCFEnabled; |
411 |
#endif // FORCE_FILTER_USAGE |
#endif // CONFIG_FORCE_FILTER |
412 |
if (pDimRgn->VCFEnabled) { |
SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter); |
413 |
#ifdef OVERRIDE_FILTER_CUTOFF_CTRL |
if (bUseFilter) { |
414 |
VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL; |
#ifdef CONFIG_OVERRIDE_CUTOFF_CTRL |
415 |
|
VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL; |
416 |
#else // use the one defined in the instrument file |
#else // use the one defined in the instrument file |
417 |
switch (pDimRgn->VCFCutoffController) { |
switch (pDimRgn->VCFCutoffController) { |
418 |
case ::gig::vcf_cutoff_ctrl_modwheel: |
case ::gig::vcf_cutoff_ctrl_modwheel: |
448 |
VCFCutoffCtrl.controller = 0; |
VCFCutoffCtrl.controller = 0; |
449 |
break; |
break; |
450 |
} |
} |
451 |
#endif // OVERRIDE_FILTER_CUTOFF_CTRL |
#endif // CONFIG_OVERRIDE_CUTOFF_CTRL |
452 |
|
|
453 |
#ifdef OVERRIDE_FILTER_RES_CTRL |
#ifdef CONFIG_OVERRIDE_RESONANCE_CTRL |
454 |
VCFResonanceCtrl.controller = OVERRIDE_FILTER_RES_CTRL; |
VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL; |
455 |
#else // use the one defined in the instrument file |
#else // use the one defined in the instrument file |
456 |
switch (pDimRgn->VCFResonanceController) { |
switch (pDimRgn->VCFResonanceController) { |
457 |
case ::gig::vcf_res_ctrl_genpurpose3: |
case ::gig::vcf_res_ctrl_genpurpose3: |
470 |
default: |
default: |
471 |
VCFResonanceCtrl.controller = 0; |
VCFResonanceCtrl.controller = 0; |
472 |
} |
} |
473 |
#endif // OVERRIDE_FILTER_RES_CTRL |
#endif // CONFIG_OVERRIDE_RESONANCE_CTRL |
474 |
|
|
475 |
#ifndef OVERRIDE_FILTER_TYPE |
#ifndef CONFIG_OVERRIDE_FILTER_TYPE |
476 |
FilterLeft.SetType(pDimRgn->VCFType); |
finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType); |
477 |
FilterRight.SetType(pDimRgn->VCFType); |
finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType); |
478 |
#else // override filter type |
#else // override filter type |
479 |
FilterLeft.SetType(OVERRIDE_FILTER_TYPE); |
FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE); |
480 |
FilterRight.SetType(OVERRIDE_FILTER_TYPE); |
FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE); |
481 |
#endif // OVERRIDE_FILTER_TYPE |
#endif // CONFIG_OVERRIDE_FILTER_TYPE |
482 |
|
|
483 |
VCFCutoffCtrl.value = pEngine->ControllerTable[VCFCutoffCtrl.controller]; |
VCFCutoffCtrl.value = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
484 |
VCFResonanceCtrl.value = pEngine->ControllerTable[VCFResonanceCtrl.controller]; |
VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller]; |
485 |
|
|
486 |
// calculate cutoff frequency |
// calculate cutoff frequency |
487 |
float cutoff = (!VCFCutoffCtrl.controller) |
float cutoff = pDimRgn->GetVelocityCutoff(itNoteOnEvent->Param.Note.Velocity); |
|
? exp((float) (127 - itNoteOnEvent->Param.Note.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 |
|
488 |
if (pDimRgn->VCFKeyboardTracking) { |
if (pDimRgn->VCFKeyboardTracking) { |
489 |
resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; |
cutoff *= exp((itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12) |
490 |
} |
} |
491 |
Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0) |
CutoffBase = cutoff; |
492 |
|
|
493 |
VCFCutoffCtrl.fvalue = cutoff - FILTER_CUTOFF_MIN; |
int cvalue; |
494 |
VCFResonanceCtrl.fvalue = resonance; |
if (VCFCutoffCtrl.controller) { |
495 |
|
cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
496 |
|
if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
497 |
|
// VCFVelocityScale in this case means Minimum cutoff |
498 |
|
if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale; |
499 |
|
} |
500 |
|
else { |
501 |
|
cvalue = pDimRgn->VCFCutoff; |
502 |
|
} |
503 |
|
cutoff *= float(cvalue) * 0.00787402f; // (1 / 127) |
504 |
|
if (cutoff > 1.0) cutoff = 1.0; |
505 |
|
cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449); |
506 |
|
if (cutoff < 1.0) cutoff = 1.0; |
507 |
|
|
508 |
FilterLeft.SetParameters(cutoff, resonance, pEngine->SampleRate); |
// calculate resonance |
509 |
FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate); |
float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0 |
510 |
|
|
511 |
FilterUpdateCounter = -1; |
VCFCutoffCtrl.fvalue = cutoff - 1.0; |
512 |
|
VCFResonanceCtrl.fvalue = resonance; |
513 |
} |
} |
514 |
else { |
else { |
515 |
VCFCutoffCtrl.controller = 0; |
VCFCutoffCtrl.controller = 0; |
516 |
VCFResonanceCtrl.controller = 0; |
VCFResonanceCtrl.controller = 0; |
517 |
} |
} |
|
#endif // ENABLE_FILTER |
|
518 |
|
|
519 |
return 0; // success |
return 0; // success |
520 |
} |
} |
532 |
*/ |
*/ |
533 |
void Voice::Render(uint Samples) { |
void Voice::Render(uint Samples) { |
534 |
|
|
535 |
// Reset the synthesis parameter matrix |
// select default values for synthesis mode bits |
536 |
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume); |
SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false); |
|
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, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent); |
|
|
#if ENABLE_FILTER |
|
|
pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, 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 |
|
|
|
|
537 |
|
|
538 |
switch (this->PlaybackState) { |
switch (this->PlaybackState) { |
539 |
|
|
540 |
|
case playback_state_init: |
541 |
|
this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed |
542 |
|
// no break - continue with playback_state_ram |
543 |
|
|
544 |
case playback_state_ram: { |
case playback_state_ram: { |
545 |
if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping |
546 |
else InterpolateNoLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
|
547 |
|
// render current fragment |
548 |
|
Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
549 |
|
|
550 |
if (DiskVoice) { |
if (DiskVoice) { |
551 |
// check if we reached the allowed limit of the sample RAM cache |
// check if we reached the allowed limit of the sample RAM cache |
552 |
if (Pos > MaxRAMPos) { |
if (finalSynthesisParameters.dPos > MaxRAMPos) { |
553 |
dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", Pos)); |
dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos)); |
554 |
this->PlaybackState = playback_state_disk; |
this->PlaybackState = playback_state_disk; |
555 |
} |
} |
556 |
} |
} else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) { |
|
else if (Pos >= pSample->GetCache().Size / pSample->FrameSize) { |
|
557 |
this->PlaybackState = playback_state_end; |
this->PlaybackState = playback_state_end; |
558 |
} |
} |
559 |
} |
} |
568 |
KillImmediately(); |
KillImmediately(); |
569 |
return; |
return; |
570 |
} |
} |
571 |
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos)); |
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(finalSynthesisParameters.dPos) - MaxRAMPos)); |
572 |
Pos -= RTMath::DoubleToInt(Pos); |
finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos); |
573 |
|
RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet |
574 |
} |
} |
575 |
|
|
576 |
|
const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace(); |
577 |
|
|
578 |
// add silence sample at the end if we reached the end of the stream (for the interpolator) |
// add silence sample at the end if we reached the end of the stream (for the interpolator) |
579 |
if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) { |
if (DiskStreamRef.State == Stream::state_end) { |
580 |
DiskStreamRef.pStream->WriteSilence((pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels); |
const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm |
581 |
this->PlaybackState = playback_state_end; |
if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) { |
582 |
|
// remember how many sample words there are before any silence has been added |
583 |
|
if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead; |
584 |
|
DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead); |
585 |
|
} |
586 |
} |
} |
587 |
|
|
588 |
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
589 |
InterpolateNoLoop(Samples, ptr, Delay); |
|
590 |
DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); |
// render current audio fragment |
591 |
Pos -= RTMath::DoubleToInt(Pos); |
Synthesize(Samples, ptr, Delay); |
592 |
|
|
593 |
|
const int iPos = (int) finalSynthesisParameters.dPos; |
594 |
|
const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read |
595 |
|
DiskStreamRef.pStream->IncrementReadPos(readSampleWords); |
596 |
|
finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position |
597 |
|
|
598 |
|
// change state of voice to 'end' if we really reached the end of the sample data |
599 |
|
if (RealSampleWordsLeftToRead >= 0) { |
600 |
|
RealSampleWordsLeftToRead -= readSampleWords; |
601 |
|
if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end; |
602 |
|
} |
603 |
} |
} |
604 |
break; |
break; |
605 |
|
|
608 |
break; |
break; |
609 |
} |
} |
610 |
|
|
|
|
|
|
// Reset synthesis event lists (except VCO, as VCO events apply channel wide currently) |
|
|
pEngine->pSynthesisEvents[Event::destination_vca]->clear(); |
|
|
#if ENABLE_FILTER |
|
|
pEngine->pSynthesisEvents[Event::destination_vcfc]->clear(); |
|
|
pEngine->pSynthesisEvents[Event::destination_vcfr]->clear(); |
|
|
#endif // ENABLE_FILTER |
|
|
|
|
611 |
// Reset delay |
// Reset delay |
612 |
Delay = 0; |
Delay = 0; |
613 |
|
|
614 |
itTriggerEvent = Pool<Event>::Iterator(); |
itTriggerEvent = Pool<Event>::Iterator(); |
615 |
|
|
616 |
// If sample stream or release stage finished, kill the voice |
// If sample stream or release stage finished, kill the voice |
617 |
if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately(); |
if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately(); |
618 |
} |
} |
619 |
|
|
620 |
/** |
/** |
622 |
* suspended / not running. |
* suspended / not running. |
623 |
*/ |
*/ |
624 |
void Voice::Reset() { |
void Voice::Reset() { |
625 |
pLFO1->Reset(); |
finalSynthesisParameters.filterLeft.Reset(); |
626 |
pLFO2->Reset(); |
finalSynthesisParameters.filterRight.Reset(); |
|
pLFO3->Reset(); |
|
627 |
DiskStreamRef.pStream = NULL; |
DiskStreamRef.pStream = NULL; |
628 |
DiskStreamRef.hStream = 0; |
DiskStreamRef.hStream = 0; |
629 |
DiskStreamRef.State = Stream::state_unused; |
DiskStreamRef.State = Stream::state_unused; |
634 |
} |
} |
635 |
|
|
636 |
/** |
/** |
637 |
* Process the control change event lists of the engine for the current |
* Process given list of MIDI note on, note off and sustain pedal events |
638 |
* audio fragment. Event values will be applied to the synthesis parameter |
* for the given time. |
|
* matrix. |
|
639 |
* |
* |
640 |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
* @param itEvent - iterator pointing to the next event to be processed |
641 |
|
* @param End - youngest time stamp where processing should be stopped |
642 |
*/ |
*/ |
643 |
void Voice::ProcessEvents(uint Samples) { |
void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) { |
644 |
|
for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) { |
645 |
// dispatch control change events |
if (itEvent->Type == Event::type_release) { |
646 |
RTList<Event>::Iterator itCCEvent = pEngine->pCCEvents->first(); |
EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
647 |
if (Delay) { // skip events that happened before this voice was triggered |
EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
648 |
while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent; |
} else if (itEvent->Type == Event::type_cancel_release) { |
649 |
} |
EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
650 |
while (itCCEvent) { |
EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller |
|
|
#if ENABLE_FILTER |
|
|
if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
|
|
*pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent; |
|
|
} |
|
|
if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
|
|
*pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent; |
|
|
} |
|
|
#endif // ENABLE_FILTER |
|
|
if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) { |
|
|
pLFO1->SendEvent(itCCEvent); |
|
|
} |
|
|
#if ENABLE_FILTER |
|
|
if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) { |
|
|
pLFO2->SendEvent(itCCEvent); |
|
|
} |
|
|
#endif // ENABLE_FILTER |
|
|
if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) { |
|
|
pLFO3->SendEvent(itCCEvent); |
|
|
} |
|
|
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
|
|
itCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event |
|
|
*pEngine->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent; |
|
|
} |
|
651 |
} |
} |
|
|
|
|
++itCCEvent; |
|
652 |
} |
} |
653 |
|
} |
654 |
|
|
655 |
|
/** |
656 |
// process pitch events |
* Process given list of MIDI control change and pitch bend events for |
657 |
{ |
* the given time. |
658 |
RTList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco]; |
* |
659 |
RTList<Event>::Iterator itVCOEvent = pVCOEventList->first(); |
* @param itEvent - iterator pointing to the next event to be processed |
660 |
if (Delay) { // skip events that happened before this voice was triggered |
* @param End - youngest time stamp where processing should be stopped |
661 |
while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent; |
*/ |
662 |
} |
void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) { |
663 |
// apply old pitchbend value until first pitch event occurs |
for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) { |
664 |
if (this->PitchBend != 1.0) { |
if (itEvent->Type == Event::type_control_change && |
665 |
uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples; |
itEvent->Param.CC.Controller) { // if (valid) MIDI control change event |
666 |
for (uint i = Delay; i < end; i++) { |
if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
667 |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend; |
processCutoffEvent(itEvent); |
668 |
|
} |
669 |
|
if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
670 |
|
processResonanceEvent(itEvent); |
671 |
} |
} |
672 |
} |
if (itEvent->Param.CC.Controller == pLFO1->ExtController) { |
673 |
float pitch; |
pLFO1->update(itEvent->Param.CC.Value); |
|
while (itVCOEvent) { |
|
|
RTList<Event>::Iterator itNextVCOEvent = itVCOEvent; |
|
|
++itNextVCOEvent; |
|
|
|
|
|
// calculate the influence length of this event (in sample points) |
|
|
uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples; |
|
|
|
|
|
pitch = RTMath::CentsToFreqRatio(((double) itVCOEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents |
|
|
|
|
|
// apply pitch value to the pitch parameter sequence |
|
|
for (uint i = itVCOEvent->FragmentPos(); i < end; i++) { |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch; |
|
674 |
} |
} |
675 |
|
if (itEvent->Param.CC.Controller == pLFO2->ExtController) { |
676 |
itVCOEvent = itNextVCOEvent; |
pLFO2->update(itEvent->Param.CC.Value); |
|
} |
|
|
if (!pVCOEventList->isEmpty()) this->PitchBend = pitch; |
|
|
} |
|
|
|
|
|
// process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !) |
|
|
{ |
|
|
RTList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca]; |
|
|
RTList<Event>::Iterator itVCAEvent = pVCAEventList->first(); |
|
|
if (Delay) { // skip events that happened before this voice was triggered |
|
|
while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent; |
|
|
} |
|
|
float crossfadevolume; |
|
|
while (itVCAEvent) { |
|
|
RTList<Event>::Iterator itNextVCAEvent = itVCAEvent; |
|
|
++itNextVCAEvent; |
|
|
|
|
|
// calculate the influence length of this event (in sample points) |
|
|
uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples; |
|
|
|
|
|
crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value); |
|
|
|
|
|
float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume; |
|
|
|
|
|
// apply volume value to the volume parameter sequence |
|
|
for (uint i = itVCAEvent->FragmentPos(); i < end; i++) { |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume; |
|
677 |
} |
} |
678 |
|
if (itEvent->Param.CC.Controller == pLFO3->ExtController) { |
679 |
itVCAEvent = itNextVCAEvent; |
pLFO3->update(itEvent->Param.CC.Value); |
|
} |
|
|
if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume; |
|
|
} |
|
|
|
|
|
#if ENABLE_FILTER |
|
|
// process filter cutoff events |
|
|
{ |
|
|
RTList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
|
|
RTList<Event>::Iterator itCutoffEvent = pCutoffEventList->first(); |
|
|
if (Delay) { // skip events that happened before this voice was triggered |
|
|
while (itCutoffEvent && itCutoffEvent->FragmentPos() <= Delay) ++itCutoffEvent; |
|
|
} |
|
|
float cutoff; |
|
|
while (itCutoffEvent) { |
|
|
RTList<Event>::Iterator itNextCutoffEvent = itCutoffEvent; |
|
|
++itNextCutoffEvent; |
|
|
|
|
|
// calculate the influence length of this event (in sample points) |
|
|
uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples; |
|
|
|
|
|
cutoff = exp((float) itCutoffEvent->Param.CC.Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN; |
|
|
|
|
|
// apply cutoff frequency to the cutoff parameter sequence |
|
|
for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) { |
|
|
pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff; |
|
680 |
} |
} |
681 |
|
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
682 |
itCutoffEvent = itNextCutoffEvent; |
itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { |
683 |
} |
processCrossFadeEvent(itEvent); |
|
if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time |
|
|
} |
|
|
|
|
|
// process filter resonance events |
|
|
{ |
|
|
RTList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr]; |
|
|
RTList<Event>::Iterator itResonanceEvent = pResonanceEventList->first(); |
|
|
if (Delay) { // skip events that happened before this voice was triggered |
|
|
while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent; |
|
|
} |
|
|
while (itResonanceEvent) { |
|
|
RTList<Event>::Iterator itNextResonanceEvent = itResonanceEvent; |
|
|
++itNextResonanceEvent; |
|
|
|
|
|
// calculate the influence length of this event (in sample points) |
|
|
uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples; |
|
|
|
|
|
// convert absolute controller value to differential |
|
|
int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value; |
|
|
VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value; |
|
|
|
|
|
float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
|
|
|
|
|
// apply cutoff frequency to the cutoff parameter sequence |
|
|
for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) { |
|
|
pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta; |
|
684 |
} |
} |
685 |
|
} else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event |
686 |
itResonanceEvent = itNextResonanceEvent; |
processPitchEvent(itEvent); |
687 |
} |
} |
|
if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time |
|
688 |
} |
} |
|
#endif // ENABLE_FILTER |
|
689 |
} |
} |
690 |
|
|
691 |
#if ENABLE_FILTER |
void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) { |
692 |
/** |
const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents |
693 |
* Calculate all necessary, final biquad filter parameters. |
finalSynthesisParameters.fFinalPitch *= pitch; |
694 |
* |
PitchBend = pitch; |
695 |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
} |
696 |
*/ |
|
697 |
void Voice::CalculateBiquadParameters(uint Samples) { |
void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) { |
698 |
if (!FilterLeft.Enabled) return; |
CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value); |
699 |
|
#if CONFIG_PROCESS_MUTED_CHANNELS |
700 |
biquad_param_t bqbase; |
const float effectiveVolume = CrossfadeVolume * Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume); |
701 |
biquad_param_t bqmain; |
#else |
702 |
float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; |
const float effectiveVolume = CrossfadeVolume * Volume * pEngineChannel->GlobalVolume; |
703 |
float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; |
#endif |
704 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
fFinalVolume = effectiveVolume; |
705 |
pEngine->pBasicFilterParameters[0] = bqbase; |
} |
706 |
pEngine->pMainFilterParameters[0] = bqmain; |
|
707 |
|
void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) { |
708 |
float* bq; |
int ccvalue = itEvent->Param.CC.Value; |
709 |
for (int i = 1; i < Samples; i++) { |
if (VCFCutoffCtrl.value == ccvalue) return; |
710 |
// recalculate biquad parameters if cutoff or resonance differ from previous sample point |
VCFCutoffCtrl.value == ccvalue; |
711 |
if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || |
if (pDimRgn->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue; |
712 |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) { |
if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale; |
713 |
prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; |
float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127) |
714 |
prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; |
if (cutoff > 1.0) cutoff = 1.0; |
715 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449); |
716 |
} |
if (cutoff < 1.0) cutoff = 1.0; |
717 |
|
|
718 |
//same as 'pEngine->pBasicFilterParameters[i] = bqbase;' |
VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time |
719 |
bq = (float*) &pEngine->pBasicFilterParameters[i]; |
fFinalCutoff = cutoff; |
720 |
bq[0] = bqbase.a1; |
} |
721 |
bq[1] = bqbase.a2; |
|
722 |
bq[2] = bqbase.b0; |
void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) { |
723 |
bq[3] = bqbase.b1; |
// convert absolute controller value to differential |
724 |
bq[4] = bqbase.b2; |
const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value; |
725 |
|
VCFResonanceCtrl.value = itEvent->Param.CC.Value; |
726 |
// same as 'pEngine->pMainFilterParameters[i] = bqmain;' |
const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
727 |
bq = (float*) &pEngine->pMainFilterParameters[i]; |
fFinalResonance += resonancedelta; |
728 |
bq[0] = bqmain.a1; |
// needed for initialization of parameter |
729 |
bq[1] = bqmain.a2; |
VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f; |
|
bq[2] = bqmain.b0; |
|
|
bq[3] = bqmain.b1; |
|
|
bq[4] = bqmain.b2; |
|
|
} |
|
730 |
} |
} |
|
#endif // ENABLE_FILTER |
|
731 |
|
|
732 |
/** |
/** |
733 |
* Interpolates the input audio data (without looping). |
* Synthesizes the current audio fragment for this voice. |
734 |
* |
* |
735 |
* @param Samples - number of sample points to be rendered in this audio |
* @param Samples - number of sample points to be rendered in this audio |
736 |
* fragment cycle |
* fragment cycle |
737 |
* @param pSrc - pointer to input sample data |
* @param pSrc - pointer to input sample data |
738 |
* @param Skip - number of sample points to skip in output buffer |
* @param Skip - number of sample points to skip in output buffer |
739 |
*/ |
*/ |
740 |
void Voice::InterpolateNoLoop(uint Samples, sample_t* pSrc, uint Skip) { |
void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) { |
741 |
int i = Skip; |
finalSynthesisParameters.pOutLeft = &pEngineChannel->pOutputLeft[Skip]; |
742 |
|
finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip]; |
743 |
|
finalSynthesisParameters.pSrc = pSrc; |
744 |
|
|
745 |
// FIXME: assuming either mono or stereo |
RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first(); |
746 |
if (this->pSample->Channels == 2) { // Stereo Sample |
RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first(); |
747 |
while (i < Samples) InterpolateStereo(pSrc, i); |
|
748 |
} |
if (Skip) { // skip events that happened before this voice was triggered |
749 |
else { // Mono Sample |
while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent; |
750 |
while (i < Samples) InterpolateMono(pSrc, i); |
while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent; |
751 |
} |
} |
|
} |
|
752 |
|
|
753 |
/** |
uint killPos; |
754 |
* Interpolates the input audio data, this method honors looping. |
if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos); |
|
* |
|
|
* @param Samples - number of sample points to be rendered in this audio |
|
|
* fragment cycle |
|
|
* @param pSrc - pointer to input sample data |
|
|
* @param Skip - number of sample points to skip in output buffer |
|
|
*/ |
|
|
void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) { |
|
|
int i = Skip; |
|
755 |
|
|
756 |
// FIXME: assuming either mono or stereo |
uint i = Skip; |
757 |
if (pSample->Channels == 2) { // Stereo Sample |
while (i < Samples) { |
758 |
if (pSample->LoopPlayCount) { |
int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples); |
759 |
// render loop (loop count limited) |
|
760 |
while (i < Samples && LoopCyclesLeft) { |
// initialize all final synthesis parameters |
761 |
InterpolateStereo(pSrc, i); |
finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend; |
762 |
if (Pos > pSample->LoopEnd) { |
#if CONFIG_PROCESS_MUTED_CHANNELS |
763 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
fFinalVolume = this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume); |
764 |
LoopCyclesLeft--; |
#else |
765 |
} |
fFinalVolume = this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume; |
766 |
} |
#endif |
767 |
// render on without loop |
fFinalCutoff = VCFCutoffCtrl.fvalue; |
768 |
while (i < Samples) InterpolateStereo(pSrc, i); |
fFinalResonance = VCFResonanceCtrl.fvalue; |
769 |
|
|
770 |
|
// process MIDI control change and pitchbend events for this subfragment |
771 |
|
processCCEvents(itCCEvent, iSubFragmentEnd); |
772 |
|
|
773 |
|
// process transition events (note on, note off & sustain pedal) |
774 |
|
processTransitionEvents(itNoteEvent, iSubFragmentEnd); |
775 |
|
|
776 |
|
// if the voice was killed in this subfragment switch EG1 to fade out stage |
777 |
|
if (itKillEvent && killPos <= iSubFragmentEnd) { |
778 |
|
EG1.enterFadeOutStage(); |
779 |
|
itKillEvent = Pool<Event>::Iterator(); |
780 |
} |
} |
781 |
else { // render loop (endless loop) |
|
782 |
while (i < Samples) { |
// process envelope generators |
783 |
InterpolateStereo(pSrc, i); |
switch (EG1.getSegmentType()) { |
784 |
if (Pos > pSample->LoopEnd) { |
case EGADSR::segment_lin: |
785 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize); |
fFinalVolume *= EG1.processLin(); |
786 |
} |
break; |
787 |
} |
case EGADSR::segment_exp: |
788 |
|
fFinalVolume *= EG1.processExp(); |
789 |
|
break; |
790 |
|
case EGADSR::segment_end: |
791 |
|
fFinalVolume *= EG1.getLevel(); |
792 |
|
break; // noop |
793 |
} |
} |
794 |
} |
switch (EG2.getSegmentType()) { |
795 |
else { // Mono Sample |
case EGADSR::segment_lin: |
796 |
if (pSample->LoopPlayCount) { |
fFinalCutoff *= EG2.processLin(); |
797 |
// render loop (loop count limited) |
break; |
798 |
while (i < Samples && LoopCyclesLeft) { |
case EGADSR::segment_exp: |
799 |
InterpolateMono(pSrc, i); |
fFinalCutoff *= EG2.processExp(); |
800 |
if (Pos > pSample->LoopEnd) { |
break; |
801 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
case EGADSR::segment_end: |
802 |
LoopCyclesLeft--; |
fFinalCutoff *= EG2.getLevel(); |
803 |
} |
break; // noop |
|
} |
|
|
// render on without loop |
|
|
while (i < Samples) InterpolateMono(pSrc, i); |
|
804 |
} |
} |
805 |
else { // render loop (endless loop) |
if (EG3.active()) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(EG3.render()); |
806 |
while (i < Samples) { |
|
807 |
InterpolateMono(pSrc, i); |
// process low frequency oscillators |
808 |
if (Pos > pSample->LoopEnd) { |
if (bLFO1Enabled) fFinalVolume *= pLFO1->render(); |
809 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
if (bLFO2Enabled) fFinalCutoff *= pLFO2->render(); |
810 |
} |
if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render()); |
811 |
|
|
812 |
|
// if filter enabled then update filter coefficients |
813 |
|
if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) { |
814 |
|
finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate); |
815 |
|
finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate); |
816 |
|
} |
817 |
|
|
818 |
|
// do we need resampling? |
819 |
|
const float __PLUS_ONE_CENT = 1.000577789506554859250142541782224725466f; |
820 |
|
const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f; |
821 |
|
const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT && |
822 |
|
finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT); |
823 |
|
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired); |
824 |
|
|
825 |
|
// prepare final synthesis parameters structure |
826 |
|
finalSynthesisParameters.fFinalVolumeLeft = fFinalVolume * PanLeft; |
827 |
|
finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight; |
828 |
|
finalSynthesisParameters.uiToGo = iSubFragmentEnd - i; |
829 |
|
|
830 |
|
// render audio for one subfragment |
831 |
|
RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop); |
832 |
|
|
833 |
|
const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch; |
834 |
|
|
835 |
|
// increment envelopes' positions |
836 |
|
if (EG1.active()) { |
837 |
|
|
838 |
|
// if sample has a loop and loop start has been reached in this subfragment, send a special event to EG1 to let it finish the attack hold stage |
839 |
|
if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) { |
840 |
|
EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
841 |
} |
} |
842 |
|
|
843 |
|
EG1.increment(1); |
844 |
|
if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
845 |
|
} |
846 |
|
if (EG2.active()) { |
847 |
|
EG2.increment(1); |
848 |
|
if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
849 |
} |
} |
850 |
|
EG3.increment(1); |
851 |
|
if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached |
852 |
|
|
853 |
|
Pos = newPos; |
854 |
|
i = iSubFragmentEnd; |
855 |
} |
} |
856 |
} |
} |
857 |
|
|
880 |
* @param itKillEvent - event which caused the voice to be killed |
* @param itKillEvent - event which caused the voice to be killed |
881 |
*/ |
*/ |
882 |
void Voice::Kill(Pool<Event>::Iterator& itKillEvent) { |
void Voice::Kill(Pool<Event>::Iterator& itKillEvent) { |
883 |
|
#if CONFIG_DEVMODE |
884 |
|
if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n")); |
885 |
|
if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n")); |
886 |
|
#endif // CONFIG_DEVMODE |
887 |
|
|
888 |
if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return; |
if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return; |
889 |
this->itKillEvent = itKillEvent; |
this->itKillEvent = itKillEvent; |
890 |
} |
} |