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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 * |
* Copyright (C) 2005 - 2008 Christian Schoenebeck * |
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* Copyright (C) 2009 - 2012 Christian Schoenebeck and 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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#include "../../common/Features.h" |
#include "../../common/Features.h" |
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#include "Synthesizer.h" |
#include "Synthesizer.h" |
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#include "Profiler.h" |
#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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const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
Voice::Voice() { |
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pEngine = NULL; |
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pEG1 = &EG1; |
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pEG2 = &EG2; |
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} |
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float Voice::CalculateFilterCutoffCoeff() { |
Voice::~Voice() { |
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return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN); |
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} |
} |
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Voice::Voice() { |
EngineChannel* Voice::GetGigEngineChannel() { |
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pEngine = NULL; |
return static_cast<EngineChannel*>(pEngineChannel); |
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pDiskThread = NULL; |
} |
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PlaybackState = playback_state_end; |
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pLFO1 = new LFOUnsigned(1.0f); // amplitude EG (0..1 range) |
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pLFO2 = new LFOUnsigned(1.0f); // filter EG (0..1 range) |
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pLFO3 = new LFOSigned(1200.0f); // pitch EG (-1200..+1200 range) |
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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(); |
void Voice::SetEngine(LinuxSampler::Engine* pEngine) { |
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finalSynthesisParameters.filterRight.Reset(); |
Engine* engine = static_cast<Engine*>(pEngine); |
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this->pEngine = engine; |
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this->pDiskThread = engine->pDiskThread; |
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dmsg(6,("Voice::SetEngine()\n")); |
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} |
} |
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Voice::~Voice() { |
Voice::SampleInfo Voice::GetSampleInfo() { |
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if (pLFO1) delete pLFO1; |
SampleInfo si; |
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if (pLFO2) delete pLFO2; |
si.SampleRate = pSample->SamplesPerSecond; |
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if (pLFO3) delete pLFO3; |
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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si.HasLoops = pRegion->SampleLoops; |
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si.LoopStart = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart : 0; |
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si.LoopLength = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0; |
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si.LoopPlayCount = pSample->LoopPlayCount; |
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si.Unpitched = !pRegion->PitchTrack; |
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return si; |
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} |
} |
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void Voice::SetEngine(Engine* pEngine) { |
Voice::RegionInfo Voice::GetRegionInfo() { |
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this->pEngine = pEngine; |
RegionInfo ri; |
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this->pDiskThread = pEngine->pDiskThread; |
ri.UnityNote = pRegion->UnityNote; |
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dmsg(6,("Voice::SetEngine()\n")); |
ri.FineTune = pRegion->FineTune; |
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ri.Pan = pRegion->Pan; |
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ri.SampleStartOffset = pRegion->SampleStartOffset; |
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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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ri.EG3Attack = pRegion->EG3Attack; |
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ri.EG3Depth = pRegion->EG3Depth; |
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ri.VCFEnabled = pRegion->VCFEnabled; |
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ri.VCFType = Filter::vcf_type_t(pRegion->VCFType); |
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ri.VCFResonance = pRegion->VCFResonance; |
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ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay); |
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return ri; |
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} |
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Voice::InstrumentInfo Voice::GetInstrumentInfo() { |
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InstrumentInfo ii; |
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ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune; |
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ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange; |
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return ii; |
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} |
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double Voice::GetSampleAttenuation() { |
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return pRegion->SampleAttenuation; |
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} |
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double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) { |
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return pRegion->GetVelocityAttenuation(MIDIKeyVelocity); |
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} |
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double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) { |
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return pRegion->GetVelocityRelease(MIDIKeyVelocity); |
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} |
} |
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/** |
void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) { |
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* Initializes and triggers the voice, a disk stream will be launched if |
if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event |
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* needed. |
if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
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* |
itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) { |
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* @param pEngineChannel - engine channel on which this voice was ordered |
CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]); |
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* @param itNoteOnEvent - event that caused triggering of this voice |
} |
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* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
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* @param pDimRgn - points to the dimension region which provides sample wave(s) and articulation data |
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* @param VoiceType - type of this voice |
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* @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(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) { |
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this->pEngineChannel = pEngineChannel; |
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this->pDimRgn = pDimRgn; |
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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 = VoiceType; |
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MIDIKey = itNoteOnEvent->Param.Note.Key; |
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PlaybackState = playback_state_init; // mark voice as triggered, but no audio rendered yet |
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Delay = itNoteOnEvent->FragmentPos(); |
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itTriggerEvent = itNoteOnEvent; |
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itKillEvent = Pool<Event>::Iterator(); |
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KeyGroup = iKeyGroup; |
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pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
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// calculate volume |
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const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity); |
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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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Volume *= pDimRgn->SampleAttenuation; |
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// the volume of release triggered samples depends on note length |
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if (Type == type_release_trigger) { |
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float noteLength = float(pEngine->FrameTime + Delay - |
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pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate; |
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float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength; |
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if (attenuation <= 0) return -1; |
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Volume *= attenuation; |
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} |
} |
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} |
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127 |
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void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) { |
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int ccvalue = itEvent->Param.CC.Value; |
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if (VCFCutoffCtrl.value == ccvalue) return; |
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VCFCutoffCtrl.value = ccvalue; |
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if (pRegion->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue; |
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if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale; |
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float cutoff = CutoffBase * float(ccvalue); |
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if (cutoff > 127.0f) cutoff = 127.0f; |
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// select channel mode (mono or stereo) |
VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time |
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SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2); |
fFinalCutoff = cutoff; |
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} |
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// get starting crossfade volume level |
double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) { |
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switch (pDimRgn->AttenuationController.type) { |
float crossfadeVolume; |
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switch (pRegion->AttenuationController.type) { |
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case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
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CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet |
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])]; |
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break; |
break; |
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case ::gig::attenuation_ctrl_t::type_velocity: |
case ::gig::attenuation_ctrl_t::type_velocity: |
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CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity); |
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)]; |
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break; |
break; |
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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(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])]; |
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break; |
break; |
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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: |
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CrossfadeVolume = 1.0f; |
crossfadeVolume = 1.0f; |
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} |
} |
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PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
return crossfadeVolume; |
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PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
} |
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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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// Check if the sample needs disk streaming or is too short for that |
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long cachedsamples = pSample->GetCache().Size / pSample->FrameSize; |
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DiskVoice = cachedsamples < pSample->SamplesTotal; |
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if (DiskVoice) { // voice to be streamed from disk |
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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) |
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// check if there's a loop defined which completely fits into the cached (RAM) part of the sample |
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if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) { |
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RAMLoop = true; |
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loop.uiTotalCycles = pSample->LoopPlayCount; |
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loop.uiCyclesLeft = pSample->LoopPlayCount; |
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loop.uiStart = pSample->LoopStart; |
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loop.uiEnd = pSample->LoopEnd; |
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loop.uiSize = pSample->LoopSize; |
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} |
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else RAMLoop = false; |
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if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) { |
double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) { |
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dmsg(1,("Disk stream order failed!\n")); |
double eg1controllervalue = 0; |
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KillImmediately(); |
switch (pRegion->EG1Controller.type) { |
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return -1; |
case ::gig::eg1_ctrl_t::type_none: // no controller defined |
164 |
} |
eg1controllervalue = 0; |
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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")); |
break; |
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} |
case ::gig::eg1_ctrl_t::type_channelaftertouch: |
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else { // RAM only voice |
eg1controllervalue = GetGigEngineChannel()->ControllerTable[128]; |
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MaxRAMPos = cachedsamples; |
break; |
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if (pSample->Loops) { |
case ::gig::eg1_ctrl_t::type_velocity: |
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RAMLoop = true; |
eg1controllervalue = MIDIKeyVelocity; |
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loop.uiCyclesLeft = pSample->LoopPlayCount; |
break; |
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} |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
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else RAMLoop = false; |
eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number]; |
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dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no")); |
break; |
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} |
} |
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if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
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return eg1controllervalue; |
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} |
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// calculate initial pitch value |
Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) { |
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{ |
EGInfo eg; |
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double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
// (eg1attack is different from the others) |
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if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
eg.Attack = (pRegion->EG1ControllerAttackInfluence) ? |
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this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate)); |
1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ? |
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this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0; |
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} |
eg.Decay = (pRegion->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence) * eg1ControllerValue : 1.0; |
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eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0; |
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// the length of the decay and release curves are dependent on the velocity |
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const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity); |
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// setup EG 1 (VCA EG) |
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{ |
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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 = itNoteOnEvent->Param.Note.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 = pEngineChannel->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 |
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// (eg1attack is different from the others) |
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double eg1attack = (pDimRgn->EG1ControllerAttackInfluence) ? |
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1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ? |
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1 : 1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0; |
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double eg1decay = (pDimRgn->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence) * eg1controllervalue : 1.0; |
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double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 1.0; |
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EG1.trigger(pDimRgn->EG1PreAttack, |
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pDimRgn->EG1Attack * eg1attack, |
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pDimRgn->EG1Hold, |
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pDimRgn->EG1Decay1 * eg1decay * velrelease, |
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pDimRgn->EG1Decay2 * eg1decay * velrelease, |
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pDimRgn->EG1InfiniteSustain, |
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pDimRgn->EG1Sustain, |
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pDimRgn->EG1Release * eg1release * velrelease, |
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velocityAttenuation, |
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pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
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} |
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189 |
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190 |
// setup EG 2 (VCF Cutoff EG) |
return eg; |
191 |
{ |
} |
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// get current value of EG2 controller |
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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 = itNoteOnEvent->Param.Note.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 = pEngineChannel->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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192 |
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193 |
// calculate influence of EG2 controller on EG2's parameters |
double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) { |
194 |
double eg2attack = (pDimRgn->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence) * eg2controllervalue : 1.0; |
double eg2controllervalue = 0; |
195 |
double eg2decay = (pDimRgn->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence) * eg2controllervalue : 1.0; |
switch (pRegion->EG2Controller.type) { |
196 |
double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0; |
case ::gig::eg2_ctrl_t::type_none: // no controller defined |
197 |
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eg2controllervalue = 0; |
198 |
EG2.trigger(pDimRgn->EG2PreAttack, |
break; |
199 |
pDimRgn->EG2Attack * eg2attack, |
case ::gig::eg2_ctrl_t::type_channelaftertouch: |
200 |
false, |
eg2controllervalue = GetGigEngineChannel()->ControllerTable[128]; |
201 |
pDimRgn->EG2Decay1 * eg2decay * velrelease, |
break; |
202 |
pDimRgn->EG2Decay2 * eg2decay * velrelease, |
case ::gig::eg2_ctrl_t::type_velocity: |
203 |
pDimRgn->EG2InfiniteSustain, |
eg2controllervalue = MIDIKeyVelocity; |
204 |
pDimRgn->EG2Sustain, |
break; |
205 |
pDimRgn->EG2Release * eg2release * velrelease, |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
206 |
velocityAttenuation, |
eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number]; |
207 |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
break; |
208 |
} |
} |
209 |
|
if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
210 |
|
|
211 |
|
return eg2controllervalue; |
212 |
|
} |
213 |
|
|
214 |
// setup EG 3 (VCO EG) |
Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) { |
215 |
{ |
EGInfo eg; |
216 |
double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth); |
eg.Attack = (pRegion->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence) * eg2ControllerValue : 1.0; |
217 |
EG3.trigger(eg3depth, pDimRgn->EG3Attack, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
eg.Decay = (pRegion->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence) * eg2ControllerValue : 1.0; |
218 |
} |
eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0; |
219 |
|
|
220 |
|
return eg; |
221 |
|
} |
222 |
|
|
223 |
// setup LFO 1 (VCA LFO) |
void Voice::InitLFO1() { |
224 |
{ |
uint16_t lfo1_internal_depth; |
225 |
uint16_t lfo1_internal_depth; |
switch (pRegion->LFO1Controller) { |
226 |
switch (pDimRgn->LFO1Controller) { |
case ::gig::lfo1_ctrl_internal: |
227 |
case ::gig::lfo1_ctrl_internal: |
lfo1_internal_depth = pRegion->LFO1InternalDepth; |
228 |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
pLFO1->ExtController = 0; // no external controller |
229 |
pLFO1->ExtController = 0; // no external controller |
bLFO1Enabled = (lfo1_internal_depth > 0); |
230 |
bLFO1Enabled = (lfo1_internal_depth > 0); |
break; |
231 |
break; |
case ::gig::lfo1_ctrl_modwheel: |
232 |
case ::gig::lfo1_ctrl_modwheel: |
lfo1_internal_depth = 0; |
233 |
lfo1_internal_depth = 0; |
pLFO1->ExtController = 1; // MIDI controller 1 |
234 |
pLFO1->ExtController = 1; // MIDI controller 1 |
bLFO1Enabled = (pRegion->LFO1ControlDepth > 0); |
235 |
bLFO1Enabled = (pDimRgn->LFO1ControlDepth > 0); |
break; |
236 |
break; |
case ::gig::lfo1_ctrl_breath: |
237 |
case ::gig::lfo1_ctrl_breath: |
lfo1_internal_depth = 0; |
238 |
lfo1_internal_depth = 0; |
pLFO1->ExtController = 2; // MIDI controller 2 |
239 |
pLFO1->ExtController = 2; // MIDI controller 2 |
bLFO1Enabled = (pRegion->LFO1ControlDepth > 0); |
240 |
bLFO1Enabled = (pDimRgn->LFO1ControlDepth > 0); |
break; |
241 |
break; |
case ::gig::lfo1_ctrl_internal_modwheel: |
242 |
case ::gig::lfo1_ctrl_internal_modwheel: |
lfo1_internal_depth = pRegion->LFO1InternalDepth; |
243 |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
pLFO1->ExtController = 1; // MIDI controller 1 |
244 |
pLFO1->ExtController = 1; // MIDI controller 1 |
bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0); |
245 |
bLFO1Enabled = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0); |
break; |
246 |
break; |
case ::gig::lfo1_ctrl_internal_breath: |
247 |
case ::gig::lfo1_ctrl_internal_breath: |
lfo1_internal_depth = pRegion->LFO1InternalDepth; |
248 |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
pLFO1->ExtController = 2; // MIDI controller 2 |
249 |
pLFO1->ExtController = 2; // MIDI controller 2 |
bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0); |
250 |
bLFO1Enabled = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0); |
break; |
251 |
break; |
default: |
252 |
default: |
lfo1_internal_depth = 0; |
253 |
lfo1_internal_depth = 0; |
pLFO1->ExtController = 0; // no external controller |
254 |
pLFO1->ExtController = 0; // no external controller |
bLFO1Enabled = false; |
255 |
bLFO1Enabled = false; |
} |
256 |
} |
if (bLFO1Enabled) { |
257 |
if (bLFO1Enabled) pLFO1->trigger(pDimRgn->LFO1Frequency, |
pLFO1->trigger(pRegion->LFO1Frequency, |
258 |
start_level_max, |
start_level_min, |
259 |
lfo1_internal_depth, |
lfo1_internal_depth, |
260 |
pDimRgn->LFO1ControlDepth, |
pRegion->LFO1ControlDepth, |
261 |
pDimRgn->LFO1FlipPhase, |
pRegion->LFO1FlipPhase, |
262 |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
263 |
|
pLFO1->update(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0); |
264 |
} |
} |
265 |
|
} |
266 |
|
|
267 |
|
void Voice::InitLFO2() { |
268 |
// setup LFO 2 (VCF Cutoff LFO) |
uint16_t lfo2_internal_depth; |
269 |
{ |
switch (pRegion->LFO2Controller) { |
270 |
uint16_t lfo2_internal_depth; |
case ::gig::lfo2_ctrl_internal: |
271 |
switch (pDimRgn->LFO2Controller) { |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
272 |
case ::gig::lfo2_ctrl_internal: |
pLFO2->ExtController = 0; // no external controller |
273 |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
bLFO2Enabled = (lfo2_internal_depth > 0); |
274 |
pLFO2->ExtController = 0; // no external controller |
break; |
275 |
bLFO2Enabled = (lfo2_internal_depth > 0); |
case ::gig::lfo2_ctrl_modwheel: |
276 |
break; |
lfo2_internal_depth = 0; |
277 |
case ::gig::lfo2_ctrl_modwheel: |
pLFO2->ExtController = 1; // MIDI controller 1 |
278 |
lfo2_internal_depth = 0; |
bLFO2Enabled = (pRegion->LFO2ControlDepth > 0); |
279 |
pLFO2->ExtController = 1; // MIDI controller 1 |
break; |
280 |
bLFO2Enabled = (pDimRgn->LFO2ControlDepth > 0); |
case ::gig::lfo2_ctrl_foot: |
281 |
break; |
lfo2_internal_depth = 0; |
282 |
case ::gig::lfo2_ctrl_foot: |
pLFO2->ExtController = 4; // MIDI controller 4 |
283 |
lfo2_internal_depth = 0; |
bLFO2Enabled = (pRegion->LFO2ControlDepth > 0); |
284 |
pLFO2->ExtController = 4; // MIDI controller 4 |
break; |
285 |
bLFO2Enabled = (pDimRgn->LFO2ControlDepth > 0); |
case ::gig::lfo2_ctrl_internal_modwheel: |
286 |
break; |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
287 |
case ::gig::lfo2_ctrl_internal_modwheel: |
pLFO2->ExtController = 1; // MIDI controller 1 |
288 |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0); |
289 |
pLFO2->ExtController = 1; // MIDI controller 1 |
break; |
290 |
bLFO2Enabled = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0); |
case ::gig::lfo2_ctrl_internal_foot: |
291 |
break; |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
292 |
case ::gig::lfo2_ctrl_internal_foot: |
pLFO2->ExtController = 4; // MIDI controller 4 |
293 |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0); |
294 |
pLFO2->ExtController = 4; // MIDI controller 4 |
break; |
295 |
bLFO2Enabled = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0); |
default: |
296 |
break; |
lfo2_internal_depth = 0; |
297 |
default: |
pLFO2->ExtController = 0; // no external controller |
298 |
lfo2_internal_depth = 0; |
bLFO2Enabled = false; |
299 |
pLFO2->ExtController = 0; // no external controller |
} |
300 |
bLFO2Enabled = false; |
if (bLFO2Enabled) { |
301 |
} |
pLFO2->trigger(pRegion->LFO2Frequency, |
302 |
if (bLFO2Enabled) pLFO2->trigger(pDimRgn->LFO2Frequency, |
start_level_max, |
303 |
start_level_max, |
lfo2_internal_depth, |
304 |
lfo2_internal_depth, |
pRegion->LFO2ControlDepth, |
305 |
pDimRgn->LFO2ControlDepth, |
pRegion->LFO2FlipPhase, |
306 |
pDimRgn->LFO2FlipPhase, |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
307 |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
pLFO2->update(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0); |
308 |
} |
} |
309 |
|
} |
310 |
|
|
311 |
|
void Voice::InitLFO3() { |
312 |
// setup LFO 3 (VCO LFO) |
uint16_t lfo3_internal_depth; |
313 |
{ |
switch (pRegion->LFO3Controller) { |
314 |
uint16_t lfo3_internal_depth; |
case ::gig::lfo3_ctrl_internal: |
315 |
switch (pDimRgn->LFO3Controller) { |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
316 |
case ::gig::lfo3_ctrl_internal: |
pLFO3->ExtController = 0; // no external controller |
317 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
bLFO3Enabled = (lfo3_internal_depth > 0); |
318 |
pLFO3->ExtController = 0; // no external controller |
break; |
319 |
bLFO3Enabled = (lfo3_internal_depth > 0); |
case ::gig::lfo3_ctrl_modwheel: |
320 |
break; |
lfo3_internal_depth = 0; |
321 |
case ::gig::lfo3_ctrl_modwheel: |
pLFO3->ExtController = 1; // MIDI controller 1 |
322 |
lfo3_internal_depth = 0; |
bLFO3Enabled = (pRegion->LFO3ControlDepth > 0); |
323 |
pLFO3->ExtController = 1; // MIDI controller 1 |
break; |
324 |
bLFO3Enabled = (pDimRgn->LFO3ControlDepth > 0); |
case ::gig::lfo3_ctrl_aftertouch: |
325 |
break; |
lfo3_internal_depth = 0; |
326 |
case ::gig::lfo3_ctrl_aftertouch: |
pLFO3->ExtController = 128; |
327 |
lfo3_internal_depth = 0; |
bLFO3Enabled = true; |
328 |
pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet |
break; |
329 |
bLFO3Enabled = false; // see TODO comment in line above |
case ::gig::lfo3_ctrl_internal_modwheel: |
330 |
break; |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
331 |
case ::gig::lfo3_ctrl_internal_modwheel: |
pLFO3->ExtController = 1; // MIDI controller 1 |
332 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0); |
333 |
pLFO3->ExtController = 1; // MIDI controller 1 |
break; |
334 |
bLFO3Enabled = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0); |
case ::gig::lfo3_ctrl_internal_aftertouch: |
335 |
break; |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
336 |
case ::gig::lfo3_ctrl_internal_aftertouch: |
pLFO3->ExtController = 128; |
337 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0); |
338 |
pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet |
break; |
339 |
bLFO3Enabled = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above |
default: |
340 |
break; |
lfo3_internal_depth = 0; |
341 |
default: |
pLFO3->ExtController = 0; // no external controller |
342 |
lfo3_internal_depth = 0; |
bLFO3Enabled = false; |
343 |
pLFO3->ExtController = 0; // no external controller |
} |
344 |
bLFO3Enabled = false; |
if (bLFO3Enabled) { |
345 |
} |
pLFO3->trigger(pRegion->LFO3Frequency, |
346 |
if (bLFO3Enabled) pLFO3->trigger(pDimRgn->LFO3Frequency, |
start_level_mid, |
347 |
start_level_mid, |
lfo3_internal_depth, |
348 |
lfo3_internal_depth, |
pRegion->LFO3ControlDepth, |
349 |
pDimRgn->LFO3ControlDepth, |
false, |
350 |
false, |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
351 |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
pLFO3->update(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0); |
352 |
} |
} |
353 |
|
} |
354 |
|
|
355 |
|
float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) { |
356 |
#if CONFIG_FORCE_FILTER |
float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity); |
357 |
const bool bUseFilter = true; |
if (pRegion->VCFKeyboardTracking) { |
358 |
#else // use filter only if instrument file told so |
cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey - pRegion->VCFKeyboardTrackingBreakpoint) * 100); |
359 |
const bool bUseFilter = pDimRgn->VCFEnabled; |
} |
360 |
#endif // CONFIG_FORCE_FILTER |
return cutoff; |
361 |
SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter); |
} |
362 |
if (bUseFilter) { |
|
363 |
#ifdef CONFIG_OVERRIDE_CUTOFF_CTRL |
float Voice::CalculateFinalCutoff(float cutoffBase) { |
364 |
VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL; |
int cvalue; |
365 |
#else // use the one defined in the instrument file |
if (VCFCutoffCtrl.controller) { |
366 |
switch (pDimRgn->VCFCutoffController) { |
cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller]; |
367 |
case ::gig::vcf_cutoff_ctrl_modwheel: |
if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
368 |
VCFCutoffCtrl.controller = 1; |
// VCFVelocityScale in this case means Minimum cutoff |
369 |
break; |
if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale; |
|
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 // CONFIG_OVERRIDE_CUTOFF_CTRL |
|
|
|
|
|
#ifdef CONFIG_OVERRIDE_RESONANCE_CTRL |
|
|
VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL; |
|
|
#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 // CONFIG_OVERRIDE_RESONANCE_CTRL |
|
|
|
|
|
#ifndef CONFIG_OVERRIDE_FILTER_TYPE |
|
|
finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType); |
|
|
finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType); |
|
|
#else // override filter type |
|
|
FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE); |
|
|
FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE); |
|
|
#endif // CONFIG_OVERRIDE_FILTER_TYPE |
|
|
|
|
|
VCFCutoffCtrl.value = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
|
|
VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller]; |
|
|
|
|
|
// calculate cutoff frequency |
|
|
float cutoff = pDimRgn->GetVelocityCutoff(itNoteOnEvent->Param.Note.Velocity); |
|
|
if (pDimRgn->VCFKeyboardTracking) { |
|
|
cutoff *= exp((itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12) |
|
|
} |
|
|
CutoffBase = cutoff; |
|
|
|
|
|
int cvalue; |
|
|
if (VCFCutoffCtrl.controller) { |
|
|
cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
|
|
if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
|
|
if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale; |
|
|
} |
|
|
else { |
|
|
cvalue = pDimRgn->VCFCutoff; |
|
|
} |
|
|
cutoff *= float(cvalue) * 0.00787402f; // (1 / 127) |
|
|
if (cutoff > 1.0) cutoff = 1.0; |
|
|
cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN; |
|
|
|
|
|
// calculate resonance |
|
|
float resonance = (float) VCFResonanceCtrl.value * 0.00787f; // 0.0..1.0 |
|
|
if (pDimRgn->VCFKeyboardTracking) { |
|
|
resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; |
|
|
} |
|
|
Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0) |
|
|
|
|
|
VCFCutoffCtrl.fvalue = cutoff - CONFIG_FILTER_CUTOFF_MIN; |
|
|
VCFResonanceCtrl.fvalue = resonance; |
|
370 |
} |
} |
371 |
else { |
else { |
372 |
VCFCutoffCtrl.controller = 0; |
cvalue = pRegion->VCFCutoff; |
|
VCFResonanceCtrl.controller = 0; |
|
373 |
} |
} |
374 |
|
float fco = cutoffBase * float(cvalue); |
375 |
|
if (fco > 127.0f) fco = 127.0f; |
376 |
|
|
377 |
return 0; // success |
return fco; |
378 |
} |
} |
379 |
|
|
380 |
/** |
uint8_t Voice::GetVCFCutoffCtrl() { |
381 |
* Renders the audio data for this voice for the current audio fragment. |
uint8_t ctrl; |
382 |
* The sample input data can either come from RAM (cached sample or sample |
switch (pRegion->VCFCutoffController) { |
383 |
* part) or directly from disk. The output signal will be rendered by |
case ::gig::vcf_cutoff_ctrl_modwheel: |
384 |
* resampling / interpolation. If this voice is a disk streaming voice and |
ctrl = 1; |
385 |
* the voice completely played back the cached RAM part of the sample, it |
break; |
386 |
* will automatically switch to disk playback for the next RenderAudio() |
case ::gig::vcf_cutoff_ctrl_effect1: |
387 |
* call. |
ctrl = 12; |
388 |
* |
break; |
389 |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
case ::gig::vcf_cutoff_ctrl_effect2: |
390 |
*/ |
ctrl = 13; |
391 |
void Voice::Render(uint Samples) { |
break; |
392 |
|
case ::gig::vcf_cutoff_ctrl_breath: |
393 |
// select default values for synthesis mode bits |
ctrl = 2; |
394 |
SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false); |
break; |
395 |
|
case ::gig::vcf_cutoff_ctrl_foot: |
396 |
switch (this->PlaybackState) { |
ctrl = 4; |
397 |
|
break; |
398 |
case playback_state_init: |
case ::gig::vcf_cutoff_ctrl_sustainpedal: |
399 |
this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed |
ctrl = 64; |
400 |
// no break - continue with playback_state_ram |
break; |
401 |
|
case ::gig::vcf_cutoff_ctrl_softpedal: |
402 |
case playback_state_ram: { |
ctrl = 67; |
403 |
if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping |
break; |
404 |
|
case ::gig::vcf_cutoff_ctrl_genpurpose7: |
405 |
// render current fragment |
ctrl = 82; |
406 |
Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
break; |
407 |
|
case ::gig::vcf_cutoff_ctrl_genpurpose8: |
408 |
if (DiskVoice) { |
ctrl = 83; |
409 |
// check if we reached the allowed limit of the sample RAM cache |
break; |
410 |
if (finalSynthesisParameters.dPos > MaxRAMPos) { |
case ::gig::vcf_cutoff_ctrl_aftertouch: |
411 |
dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos)); |
ctrl = 128; |
412 |
this->PlaybackState = playback_state_disk; |
break; |
413 |
} |
case ::gig::vcf_cutoff_ctrl_none: |
414 |
} else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) { |
default: |
415 |
this->PlaybackState = playback_state_end; |
ctrl = 0; |
416 |
} |
break; |
|
} |
|
|
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; |
|
|
KillImmediately(); |
|
|
return; |
|
|
} |
|
|
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(finalSynthesisParameters.dPos) - MaxRAMPos)); |
|
|
finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos); |
|
|
RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet |
|
|
} |
|
|
|
|
|
const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace(); |
|
|
|
|
|
// add silence sample at the end if we reached the end of the stream (for the interpolator) |
|
|
if (DiskStreamRef.State == Stream::state_end) { |
|
|
const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm |
|
|
if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) { |
|
|
// remember how many sample words there are before any silence has been added |
|
|
if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead; |
|
|
DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead); |
|
|
} |
|
|
} |
|
|
|
|
|
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
|
|
|
|
|
// render current audio fragment |
|
|
Synthesize(Samples, ptr, Delay); |
|
|
|
|
|
const int iPos = (int) finalSynthesisParameters.dPos; |
|
|
const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read |
|
|
DiskStreamRef.pStream->IncrementReadPos(readSampleWords); |
|
|
finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position |
|
|
|
|
|
// change state of voice to 'end' if we really reached the end of the sample data |
|
|
if (RealSampleWordsLeftToRead >= 0) { |
|
|
RealSampleWordsLeftToRead -= readSampleWords; |
|
|
if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end; |
|
|
} |
|
|
} |
|
|
break; |
|
|
|
|
|
case playback_state_end: |
|
|
std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush; |
|
|
break; |
|
|
} |
|
|
|
|
|
// Reset delay |
|
|
Delay = 0; |
|
|
|
|
|
itTriggerEvent = Pool<Event>::Iterator(); |
|
|
|
|
|
// If sample stream or release stage finished, kill the voice |
|
|
if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately(); |
|
|
} |
|
|
|
|
|
/** |
|
|
* Resets voice variables. Should only be called if rendering process is |
|
|
* suspended / not running. |
|
|
*/ |
|
|
void Voice::Reset() { |
|
|
finalSynthesisParameters.filterLeft.Reset(); |
|
|
finalSynthesisParameters.filterRight.Reset(); |
|
|
DiskStreamRef.pStream = NULL; |
|
|
DiskStreamRef.hStream = 0; |
|
|
DiskStreamRef.State = Stream::state_unused; |
|
|
DiskStreamRef.OrderID = 0; |
|
|
PlaybackState = playback_state_end; |
|
|
itTriggerEvent = Pool<Event>::Iterator(); |
|
|
itKillEvent = Pool<Event>::Iterator(); |
|
|
} |
|
|
|
|
|
/** |
|
|
* Process given list of MIDI note on, note off and sustain pedal events |
|
|
* for the given time. |
|
|
* |
|
|
* @param itEvent - iterator pointing to the next event to be processed |
|
|
* @param End - youngest time stamp where processing should be stopped |
|
|
*/ |
|
|
void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) { |
|
|
for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) { |
|
|
if (itEvent->Type == Event::type_release) { |
|
|
EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
|
EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
|
} else if (itEvent->Type == Event::type_cancel_release) { |
|
|
EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
|
EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
|
} |
|
417 |
} |
} |
418 |
|
|
419 |
|
return ctrl; |
420 |
} |
} |
421 |
|
|
422 |
/** |
uint8_t Voice::GetVCFResonanceCtrl() { |
423 |
* Process given list of MIDI control change and pitch bend events for |
uint8_t ctrl; |
424 |
* the given time. |
switch (pRegion->VCFResonanceController) { |
425 |
* |
case ::gig::vcf_res_ctrl_genpurpose3: |
426 |
* @param itEvent - iterator pointing to the next event to be processed |
ctrl = 18; |
427 |
* @param End - youngest time stamp where processing should be stopped |
break; |
428 |
*/ |
case ::gig::vcf_res_ctrl_genpurpose4: |
429 |
void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) { |
ctrl = 19; |
430 |
for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) { |
break; |
431 |
if (itEvent->Type == Event::type_control_change && |
case ::gig::vcf_res_ctrl_genpurpose5: |
432 |
itEvent->Param.CC.Controller) { // if (valid) MIDI control change event |
ctrl = 80; |
433 |
if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
break; |
434 |
processCutoffEvent(itEvent); |
case ::gig::vcf_res_ctrl_genpurpose6: |
435 |
} |
ctrl = 81; |
436 |
if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
break; |
437 |
processResonanceEvent(itEvent); |
case ::gig::vcf_res_ctrl_none: |
438 |
} |
default: |
439 |
if (itEvent->Param.CC.Controller == pLFO1->ExtController) { |
ctrl = 0; |
|
pLFO1->update(itEvent->Param.CC.Value); |
|
|
} |
|
|
if (itEvent->Param.CC.Controller == pLFO2->ExtController) { |
|
|
pLFO2->update(itEvent->Param.CC.Value); |
|
|
} |
|
|
if (itEvent->Param.CC.Controller == pLFO3->ExtController) { |
|
|
pLFO3->update(itEvent->Param.CC.Value); |
|
|
} |
|
|
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
|
|
itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { |
|
|
processCrossFadeEvent(itEvent); |
|
|
} |
|
|
} else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event |
|
|
processPitchEvent(itEvent); |
|
|
} |
|
440 |
} |
} |
|
} |
|
441 |
|
|
442 |
void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) { |
return ctrl; |
|
const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents |
|
|
finalSynthesisParameters.fFinalPitch *= pitch; |
|
|
PitchBend = pitch; |
|
|
} |
|
|
|
|
|
void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) { |
|
|
CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value); |
|
|
#if CONFIG_PROCESS_MUTED_CHANNELS |
|
|
const float effectiveVolume = CrossfadeVolume * Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume); |
|
|
#else |
|
|
const float effectiveVolume = CrossfadeVolume * Volume * pEngineChannel->GlobalVolume; |
|
|
#endif |
|
|
fFinalVolume = effectiveVolume; |
|
443 |
} |
} |
444 |
|
|
445 |
void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) { |
void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) { |
446 |
int ccvalue = itEvent->Param.CC.Value; |
EG1.trigger(pRegion->EG1PreAttack, |
447 |
if (VCFCutoffCtrl.value == ccvalue) return; |
pRegion->EG1Attack * egInfo.Attack, |
448 |
VCFCutoffCtrl.value == ccvalue; |
pRegion->EG1Hold, |
449 |
if (pDimRgn->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue; |
pRegion->EG1Decay1 * egInfo.Decay * velrelease, |
450 |
if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale; |
pRegion->EG1Decay2 * egInfo.Decay * velrelease, |
451 |
float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127) |
pRegion->EG1InfiniteSustain, |
452 |
if (cutoff > 1.0) cutoff = 1.0; |
pRegion->EG1Sustain, |
453 |
cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN - CONFIG_FILTER_CUTOFF_MIN; |
pRegion->EG1Release * egInfo.Release * velrelease, |
454 |
VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time |
velocityAttenuation, |
455 |
fFinalCutoff = cutoff; |
sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
456 |
} |
} |
457 |
|
|
458 |
void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) { |
void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) { |
459 |
// convert absolute controller value to differential |
EG2.trigger(uint(RgnInfo.EG2PreAttack), |
460 |
const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value; |
RgnInfo.EG2Attack * egInfo.Attack, |
461 |
VCFResonanceCtrl.value = itEvent->Param.CC.Value; |
false, |
462 |
const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
RgnInfo.EG2Decay1 * egInfo.Decay * velrelease, |
463 |
fFinalResonance += resonancedelta; |
RgnInfo.EG2Decay2 * egInfo.Decay * velrelease, |
464 |
// needed for initialization of parameter |
RgnInfo.EG2InfiniteSustain, |
465 |
VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f; |
uint(RgnInfo.EG2Sustain), |
466 |
} |
RgnInfo.EG2Release * egInfo.Release * velrelease, |
467 |
|
velocityAttenuation, |
468 |
/** |
sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
469 |
* Synthesizes the current audio fragment for this voice. |
} |
|
* |
|
|
* @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::Synthesize(uint Samples, sample_t* pSrc, uint Skip) { |
|
|
finalSynthesisParameters.pOutLeft = &pEngineChannel->pOutputLeft[Skip]; |
|
|
finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip]; |
|
|
finalSynthesisParameters.pSrc = pSrc; |
|
|
|
|
|
RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first(); |
|
|
RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first(); |
|
|
|
|
|
if (Skip) { // skip events that happened before this voice was triggered |
|
|
while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent; |
|
|
while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent; |
|
|
} |
|
|
|
|
|
uint i = Skip; |
|
|
while (i < Samples) { |
|
|
int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples); |
|
|
|
|
|
// initialize all final synthesis parameters |
|
|
finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend; |
|
|
#if CONFIG_PROCESS_MUTED_CHANNELS |
|
|
fFinalVolume = this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume); |
|
|
#else |
|
|
fFinalVolume = this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume; |
|
|
#endif |
|
|
fFinalCutoff = VCFCutoffCtrl.fvalue; |
|
|
fFinalResonance = VCFResonanceCtrl.fvalue; |
|
|
|
|
|
// process MIDI control change and pitchbend events for this subfragment |
|
|
processCCEvents(itCCEvent, iSubFragmentEnd); |
|
|
|
|
|
// process transition events (note on, note off & sustain pedal) |
|
|
processTransitionEvents(itNoteEvent, iSubFragmentEnd); |
|
|
|
|
|
// process envelope generators |
|
|
switch (EG1.getSegmentType()) { |
|
|
case EGADSR::segment_lin: |
|
|
fFinalVolume *= EG1.processLin(); |
|
|
break; |
|
|
case EGADSR::segment_exp: |
|
|
fFinalVolume *= EG1.processExp(); |
|
|
break; |
|
|
case EGADSR::segment_end: |
|
|
fFinalVolume *= EG1.getLevel(); |
|
|
break; // noop |
|
|
} |
|
|
switch (EG2.getSegmentType()) { |
|
|
case EGADSR::segment_lin: |
|
|
fFinalCutoff *= EG2.processLin(); |
|
|
break; |
|
|
case EGADSR::segment_exp: |
|
|
fFinalCutoff *= EG2.processExp(); |
|
|
break; |
|
|
case EGADSR::segment_end: |
|
|
fFinalCutoff *= EG2.getLevel(); |
|
|
break; // noop |
|
|
} |
|
|
if (EG3.active()) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(EG3.render()); |
|
470 |
|
|
471 |
// process low frequency oscillators |
void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) { |
472 |
if (bLFO1Enabled) fFinalVolume *= pLFO1->render(); |
dmsg(4,("Voice %x processGroupEvents event type=%d", this, itEvent->Type)); |
|
if (bLFO2Enabled) fFinalCutoff *= pLFO2->render(); |
|
|
if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render()); |
|
|
|
|
|
// if filter enabled then update filter coefficients |
|
|
if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) { |
|
|
finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate); |
|
|
finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate); |
|
|
} |
|
473 |
|
|
474 |
// do we need resampling? |
// TODO: The SustainPedal condition could be wrong, maybe the |
475 |
const float __PLUS_ONE_CENT = 1.000577789506554859250142541782224725466f; |
// check should be if this Voice is in release stage or is a |
476 |
const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f; |
// release sample instead. Need to test this in GSt. |
477 |
const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT && |
if (itEvent->Param.Note.Key != MIDIKey || |
478 |
finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT); |
!GetGigEngineChannel()->SustainPedal) { |
479 |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired); |
dmsg(4,("Voice %x - kill", this)); |
|
|
|
|
// prepare final synthesis parameters structure |
|
|
finalSynthesisParameters.fFinalVolumeLeft = fFinalVolume * PanLeft; |
|
|
finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight; |
|
|
finalSynthesisParameters.uiToGo = iSubFragmentEnd - i; |
|
|
|
|
|
// render audio for one subfragment |
|
|
RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop); |
|
|
|
|
|
const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch; |
|
|
|
|
|
// increment envelopes' positions |
|
|
if (EG1.active()) { |
|
|
|
|
|
// 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 |
|
|
if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) { |
|
|
EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
|
} |
|
480 |
|
|
481 |
EG1.increment(1); |
// kill the voice fast |
482 |
if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
pEG1->enterFadeOutStage(); |
|
} |
|
|
if (EG2.active()) { |
|
|
EG2.increment(1); |
|
|
if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
|
} |
|
|
EG3.increment(1); |
|
|
if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached |
|
|
|
|
|
Pos = newPos; |
|
|
i = iSubFragmentEnd; |
|
483 |
} |
} |
484 |
} |
} |
485 |
|
|
486 |
/** |
void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) { |
487 |
* Immediately kill the voice. This method should not be used to kill |
EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate); |
|
* a normal, active voice, because it doesn't take care of things like |
|
|
* fading down the volume level to avoid clicks and regular processing |
|
|
* until the kill event actually occured! |
|
|
* |
|
|
* @see Kill() |
|
|
*/ |
|
|
void Voice::KillImmediately() { |
|
|
if (DiskVoice && DiskStreamRef.State != Stream::state_unused) { |
|
|
pDiskThread->OrderDeletionOfStream(&DiskStreamRef); |
|
|
} |
|
|
Reset(); |
|
|
} |
|
|
|
|
|
/** |
|
|
* Kill the voice in regular sense. Let the voice render audio until |
|
|
* the kill event actually occured and then fade down the volume level |
|
|
* very quickly and let the voice die finally. Unlike a normal release |
|
|
* of a voice, a kill process cannot be cancalled and is therefore |
|
|
* usually used for voice stealing and key group conflicts. |
|
|
* |
|
|
* @param itKillEvent - event which caused the voice to be killed |
|
|
*/ |
|
|
void Voice::Kill(Pool<Event>::Iterator& itKillEvent) { |
|
|
#if CONFIG_DEVMODE |
|
|
if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n")); |
|
|
if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n")); |
|
|
#endif // CONFIG_DEVMODE |
|
|
|
|
|
if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return; |
|
|
this->itKillEvent = itKillEvent; |
|
488 |
} |
} |
489 |
|
|
490 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |