| 3 |
* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
| 4 |
* * |
* * |
| 5 |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
| 6 |
* Copyright (C) 2005 Christian Schoenebeck * |
* Copyright (C) 2005 - 2008 Christian Schoenebeck * |
| 7 |
|
* Copyright (C) 2009 Christian Schoenebeck and Grigor Iliev * |
| 8 |
|
* Copyright (C) 2010 - 2017 Christian Schoenebeck and Andreas Persson * |
| 9 |
* * |
* * |
| 10 |
* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
| 11 |
* 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 * |
| 26 |
#include "../../common/Features.h" |
#include "../../common/Features.h" |
| 27 |
#include "Synthesizer.h" |
#include "Synthesizer.h" |
| 28 |
#include "Profiler.h" |
#include "Profiler.h" |
| 29 |
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#include "Engine.h" |
| 30 |
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#include "EngineChannel.h" |
| 31 |
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|
| 32 |
#include "Voice.h" |
#include "Voice.h" |
| 33 |
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|
| 34 |
namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
| 35 |
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|
| 36 |
const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
// sanity checks: fromGigLfoWave() assumes equally mapped enums |
| 37 |
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static_assert(int64_t(::gig::lfo_wave_sine) == int64_t(LFO::wave_sine), |
| 38 |
float Voice::CalculateFilterCutoffCoeff() { |
"enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t"); |
| 39 |
return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN); |
static_assert(int64_t(::gig::lfo_wave_triangle) == int64_t(LFO::wave_triangle), |
| 40 |
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"enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t"); |
| 41 |
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static_assert(int64_t(::gig::lfo_wave_saw) == int64_t(LFO::wave_saw), |
| 42 |
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"enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t"); |
| 43 |
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static_assert(int64_t(::gig::lfo_wave_square) == int64_t(LFO::wave_square), |
| 44 |
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"enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t"); |
| 45 |
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|
| 46 |
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// converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler) |
| 47 |
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inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) { |
| 48 |
|
// simply assuming equally mapped enums on both sides |
| 49 |
|
return static_cast<LFO::wave_t>(wave); |
| 50 |
|
} |
| 51 |
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|
| 52 |
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// Returns true for GigaStudio's original filter types (which are resembled |
| 53 |
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// by LS very accurately with same frequency response and patch settings |
| 54 |
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// behaviour), false for our own LS specific filter implementation types. |
| 55 |
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constexpr bool isGStFilterType(::gig::vcf_type_t type) { |
| 56 |
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return type == ::gig::vcf_type_lowpass || |
| 57 |
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type == ::gig::vcf_type_lowpassturbo || |
| 58 |
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type == ::gig::vcf_type_bandpass || |
| 59 |
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type == ::gig::vcf_type_highpass || |
| 60 |
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type == ::gig::vcf_type_bandreject; |
| 61 |
} |
} |
| 62 |
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|
| 63 |
Voice::Voice() { |
Voice::Voice() { |
| 64 |
pEngine = NULL; |
pEngine = NULL; |
| 65 |
pDiskThread = NULL; |
pEG1 = &EG1; |
| 66 |
PlaybackState = playback_state_end; |
pEG2 = &EG2; |
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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(); |
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finalSynthesisParameters.filterRight.Reset(); |
|
| 67 |
} |
} |
| 68 |
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| 69 |
Voice::~Voice() { |
Voice::~Voice() { |
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if (pLFO1) delete pLFO1; |
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if (pLFO2) delete pLFO2; |
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if (pLFO3) delete pLFO3; |
|
| 70 |
} |
} |
| 71 |
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| 72 |
void Voice::SetEngine(Engine* pEngine) { |
EngineChannel* Voice::GetGigEngineChannel() { |
| 73 |
this->pEngine = pEngine; |
return static_cast<EngineChannel*>(pEngineChannel); |
| 74 |
this->pDiskThread = pEngine->pDiskThread; |
} |
| 75 |
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|
| 76 |
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void Voice::SetEngine(LinuxSampler::Engine* pEngine) { |
| 77 |
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Engine* engine = static_cast<Engine*>(pEngine); |
| 78 |
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this->pEngine = engine; |
| 79 |
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this->pDiskThread = engine->pDiskThread; |
| 80 |
dmsg(6,("Voice::SetEngine()\n")); |
dmsg(6,("Voice::SetEngine()\n")); |
| 81 |
} |
} |
| 82 |
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|
| 83 |
/** |
Voice::SampleInfo Voice::GetSampleInfo() { |
| 84 |
* Initializes and triggers the voice, a disk stream will be launched if |
SampleInfo si; |
| 85 |
* needed. |
si.SampleRate = pSample->SamplesPerSecond; |
| 86 |
* |
si.ChannelCount = pSample->Channels; |
| 87 |
* @param pEngineChannel - engine channel on which this voice was ordered |
si.FrameSize = pSample->FrameSize; |
| 88 |
* @param itNoteOnEvent - event that caused triggering of this voice |
si.BitDepth = pSample->BitDepth; |
| 89 |
* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
si.TotalFrameCount = (uint)pSample->SamplesTotal; |
|
* @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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} |
|
| 90 |
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|
| 91 |
// select channel mode (mono or stereo) |
si.HasLoops = pRegion->SampleLoops; |
| 92 |
SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2); |
si.LoopStart = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart : 0; |
| 93 |
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si.LoopLength = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0; |
| 94 |
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si.LoopPlayCount = pSample->LoopPlayCount; |
| 95 |
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si.Unpitched = !pRegion->PitchTrack; |
| 96 |
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|
| 97 |
// get starting crossfade volume level |
return si; |
| 98 |
switch (pDimRgn->AttenuationController.type) { |
} |
|
case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
|
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CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet |
|
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break; |
|
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case ::gig::attenuation_ctrl_t::type_velocity: |
|
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CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity); |
|
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break; |
|
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case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
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CrossfadeVolume = CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
|
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break; |
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case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined |
|
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default: |
|
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CrossfadeVolume = 1.0f; |
|
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} |
|
| 99 |
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|
| 100 |
PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
Voice::RegionInfo Voice::GetRegionInfo() { |
| 101 |
PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
RegionInfo ri; |
| 102 |
|
ri.UnityNote = pRegion->UnityNote; |
| 103 |
|
ri.FineTune = pRegion->FineTune; |
| 104 |
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ri.Pan = pRegion->Pan; |
| 105 |
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ri.SampleStartOffset = pRegion->SampleStartOffset; |
| 106 |
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|
| 107 |
finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
ri.EG2PreAttack = pRegion->EG2PreAttack; |
| 108 |
Pos = pDimRgn->SampleStartOffset; |
ri.EG2Attack = pRegion->EG2Attack; |
| 109 |
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ri.EG2Decay1 = pRegion->EG2Decay1; |
| 110 |
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ri.EG2Decay2 = pRegion->EG2Decay2; |
| 111 |
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ri.EG2Sustain = pRegion->EG2Sustain; |
| 112 |
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ri.EG2InfiniteSustain = pRegion->EG2InfiniteSustain; |
| 113 |
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ri.EG2Release = pRegion->EG2Release; |
| 114 |
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|
| 115 |
// Check if the sample needs disk streaming or is too short for that |
ri.EG3Attack = pRegion->EG3Attack; |
| 116 |
long cachedsamples = pSample->GetCache().Size / pSample->FrameSize; |
ri.EG3Depth = pRegion->EG3Depth; |
| 117 |
DiskVoice = cachedsamples < pSample->SamplesTotal; |
ri.VCFEnabled = pRegion->VCFEnabled; |
| 118 |
|
ri.VCFType = Filter::vcf_type_t(pRegion->VCFType); |
| 119 |
if (DiskVoice) { // voice to be streamed from disk |
ri.VCFResonance = pRegion->VCFResonance; |
|
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; |
|
| 120 |
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| 121 |
if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) { |
ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay); |
| 122 |
dmsg(1,("Disk stream order failed!\n")); |
|
| 123 |
KillImmediately(); |
return ri; |
| 124 |
return -1; |
} |
| 125 |
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|
| 126 |
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Voice::InstrumentInfo Voice::GetInstrumentInfo() { |
| 127 |
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InstrumentInfo ii; |
| 128 |
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ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune; |
| 129 |
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ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange; |
| 130 |
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|
| 131 |
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return ii; |
| 132 |
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} |
| 133 |
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| 134 |
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double Voice::GetSampleAttenuation() { |
| 135 |
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return pRegion->SampleAttenuation; |
| 136 |
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} |
| 137 |
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| 138 |
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double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) { |
| 139 |
|
return pRegion->GetVelocityAttenuation(MIDIKeyVelocity); |
| 140 |
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} |
| 141 |
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|
| 142 |
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double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) { |
| 143 |
|
return pRegion->GetVelocityRelease(MIDIKeyVelocity); |
| 144 |
|
} |
| 145 |
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|
| 146 |
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void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) { |
| 147 |
|
if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event |
| 148 |
|
if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
| 149 |
|
itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) { |
| 150 |
|
CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]); |
| 151 |
} |
} |
|
dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no")); |
|
| 152 |
} |
} |
| 153 |
else { // RAM only voice |
} |
| 154 |
MaxRAMPos = cachedsamples; |
|
| 155 |
if (pSample->Loops) { |
void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) { |
| 156 |
RAMLoop = true; |
if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event |
| 157 |
loop.uiCyclesLeft = pSample->LoopPlayCount; |
if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) { |
| 158 |
|
CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]); |
| 159 |
} |
} |
|
else RAMLoop = false; |
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dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no")); |
|
| 160 |
} |
} |
| 161 |
|
} |
| 162 |
|
|
| 163 |
|
void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) { |
| 164 |
|
// Not used so far |
| 165 |
|
} |
| 166 |
|
|
| 167 |
// calculate initial pitch value |
uint8_t Voice::MinCutoff() const { |
| 168 |
{ |
// If there's a cutoff controller defined then VCFVelocityScale means |
| 169 |
double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
// "minimum cutoff". If there is no MIDI controller defined for cutoff |
| 170 |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
// then VCFVelocityScale is already taken into account on libgig side |
| 171 |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate)); |
// instead by call to pRegion->GetVelocityCutoff(MIDIKeyVelocity). |
| 172 |
this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
return pRegion->VCFVelocityScale; |
| 173 |
} |
} |
|
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|
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// the length of the decay and release curves are dependent on the velocity |
|
|
const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity); |
|
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|
|
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// setup EG 1 (VCA EG) |
|
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{ |
|
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// get current value of EG1 controller |
|
|
double eg1controllervalue; |
|
|
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; |
|
|
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; |
|
|
break; |
|
|
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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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) |
|
|
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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|
|
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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); |
|
|
} |
|
| 174 |
|
|
| 175 |
|
// This is called on any cutoff controller changes, however not when the |
| 176 |
|
// voice is triggered. So the initial cutoff value is retrieved by a call |
| 177 |
|
// to CalculateFinalCutoff() instead. |
| 178 |
|
void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) { |
| 179 |
|
if (VCFCutoffCtrl.value == itEvent->Param.CC.Value) return; |
| 180 |
|
float ccvalue = VCFCutoffCtrl.value = itEvent->Param.CC.Value; |
| 181 |
|
|
| 182 |
// setup EG 2 (VCF Cutoff EG) |
// if the selected filter type is an official GigaStudio filter type |
| 183 |
{ |
// then we preserve the original (no matter how odd) historical GSt |
| 184 |
// get current value of EG2 controller |
// behaviour identically; for our own filter types though we deviate to |
| 185 |
double eg2controllervalue; |
// more meaningful behaviours where appropriate |
| 186 |
switch (pDimRgn->EG2Controller.type) { |
const bool isGStFilter = isGStFilterType(pRegion->VCFType); |
|
case ::gig::eg2_ctrl_t::type_none: // no controller defined |
|
|
eg2controllervalue = 0; |
|
|
break; |
|
|
case ::gig::eg2_ctrl_t::type_channelaftertouch: |
|
|
eg2controllervalue = 0; // TODO: aftertouch not yet supported |
|
|
break; |
|
|
case ::gig::eg2_ctrl_t::type_velocity: |
|
|
eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; |
|
|
break; |
|
|
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
|
|
eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
|
|
break; |
|
|
} |
|
|
if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
|
| 187 |
|
|
| 188 |
// calculate influence of EG2 controller on EG2's parameters |
if (pRegion->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue; |
| 189 |
double eg2attack = (pDimRgn->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence) * eg2controllervalue : 1.0; |
if (isGStFilter) { |
| 190 |
double eg2decay = (pDimRgn->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence) * eg2controllervalue : 1.0; |
// VCFVelocityScale in this case means "minimum cutoff" for GSt |
| 191 |
double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0; |
if (ccvalue < MinCutoff()) ccvalue = MinCutoff(); |
| 192 |
|
} else { |
| 193 |
EG2.trigger(pDimRgn->EG2PreAttack, |
// for our own filter types we interpret "minimum cutoff" |
| 194 |
pDimRgn->EG2Attack * eg2attack, |
// differently: GSt handles this as a simple hard limit with the |
| 195 |
false, |
// consequence that a certain range of the controller is simply |
| 196 |
pDimRgn->EG2Decay1 * eg2decay * velrelease, |
// dead; so for our filter types we rather remap that to |
| 197 |
pDimRgn->EG2Decay2 * eg2decay * velrelease, |
// restrain within the min_cutoff..127 range as well, but |
| 198 |
pDimRgn->EG2InfiniteSustain, |
// effectively spanned over the entire controller range (0..127) |
| 199 |
pDimRgn->EG2Sustain, |
// to avoid such a "dead" lower controller zone |
| 200 |
pDimRgn->EG2Release * eg2release * velrelease, |
ccvalue = MinCutoff() + (ccvalue / 127.f) * float(127 - MinCutoff()); |
|
velocityAttenuation, |
|
|
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
| 201 |
} |
} |
| 202 |
|
|
| 203 |
|
float cutoff = CutoffBase * ccvalue; |
| 204 |
|
if (cutoff > 127.0f) cutoff = 127.0f; |
| 205 |
|
|
| 206 |
// setup EG 3 (VCO EG) |
// the filter implementations of the original GSt filter types take an |
| 207 |
{ |
// abstract cutoff parameter range of 0..127, whereas our own filter |
| 208 |
double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth); |
// types take a cutoff parameter in Hz, so remap here: |
| 209 |
EG3.trigger(eg3depth, pDimRgn->EG3Attack, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
// 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz) |
| 210 |
|
if (!isGStFilter) { |
| 211 |
|
cutoff = (cutoff + 29.f) / (127.f + 29.f); |
| 212 |
|
cutoff = cutoff * cutoff * cutoff * cutoff * 18000.f; |
| 213 |
|
if (cutoff > 0.49f * pEngine->SampleRate) |
| 214 |
|
cutoff = 0.49f * pEngine->SampleRate; |
| 215 |
} |
} |
| 216 |
|
|
| 217 |
|
fFinalCutoff = VCFCutoffCtrl.fvalue = cutoff; |
| 218 |
|
} |
| 219 |
|
|
| 220 |
// setup LFO 1 (VCA LFO) |
double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) { |
| 221 |
{ |
float crossfadeVolume; |
| 222 |
uint16_t lfo1_internal_depth; |
switch (pRegion->AttenuationController.type) { |
| 223 |
switch (pDimRgn->LFO1Controller) { |
case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
| 224 |
case ::gig::lfo1_ctrl_internal: |
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])]; |
| 225 |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
break; |
| 226 |
pLFO1->ExtController = 0; // no external controller |
case ::gig::attenuation_ctrl_t::type_velocity: |
| 227 |
bLFO1Enabled = (lfo1_internal_depth > 0); |
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)]; |
| 228 |
break; |
break; |
| 229 |
case ::gig::lfo1_ctrl_modwheel: |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
| 230 |
lfo1_internal_depth = 0; |
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])]; |
| 231 |
pLFO1->ExtController = 1; // MIDI controller 1 |
break; |
| 232 |
bLFO1Enabled = (pDimRgn->LFO1ControlDepth > 0); |
case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined |
| 233 |
break; |
default: |
| 234 |
case ::gig::lfo1_ctrl_breath: |
crossfadeVolume = 1.0f; |
|
lfo1_internal_depth = 0; |
|
|
pLFO1->ExtController = 2; // MIDI controller 2 |
|
|
bLFO1Enabled = (pDimRgn->LFO1ControlDepth > 0); |
|
|
break; |
|
|
case ::gig::lfo1_ctrl_internal_modwheel: |
|
|
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
|
|
pLFO1->ExtController = 1; // MIDI controller 1 |
|
|
bLFO1Enabled = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0); |
|
|
break; |
|
|
case ::gig::lfo1_ctrl_internal_breath: |
|
|
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
|
|
pLFO1->ExtController = 2; // MIDI controller 2 |
|
|
bLFO1Enabled = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0); |
|
|
break; |
|
|
default: |
|
|
lfo1_internal_depth = 0; |
|
|
pLFO1->ExtController = 0; // no external controller |
|
|
bLFO1Enabled = false; |
|
|
} |
|
|
if (bLFO1Enabled) pLFO1->trigger(pDimRgn->LFO1Frequency, |
|
|
start_level_max, |
|
|
lfo1_internal_depth, |
|
|
pDimRgn->LFO1ControlDepth, |
|
|
pDimRgn->LFO1FlipPhase, |
|
|
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
| 235 |
} |
} |
| 236 |
|
|
| 237 |
|
return crossfadeVolume; |
| 238 |
|
} |
| 239 |
|
|
| 240 |
// setup LFO 2 (VCF Cutoff LFO) |
double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) { |
| 241 |
{ |
double eg1controllervalue = 0; |
| 242 |
uint16_t lfo2_internal_depth; |
switch (pRegion->EG1Controller.type) { |
| 243 |
switch (pDimRgn->LFO2Controller) { |
case ::gig::eg1_ctrl_t::type_none: // no controller defined |
| 244 |
case ::gig::lfo2_ctrl_internal: |
eg1controllervalue = 0; |
| 245 |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
break; |
| 246 |
pLFO2->ExtController = 0; // no external controller |
case ::gig::eg1_ctrl_t::type_channelaftertouch: |
| 247 |
bLFO2Enabled = (lfo2_internal_depth > 0); |
eg1controllervalue = GetGigEngineChannel()->ControllerTable[128]; |
| 248 |
break; |
break; |
| 249 |
case ::gig::lfo2_ctrl_modwheel: |
case ::gig::eg1_ctrl_t::type_velocity: |
| 250 |
lfo2_internal_depth = 0; |
eg1controllervalue = MIDIKeyVelocity; |
| 251 |
pLFO2->ExtController = 1; // MIDI controller 1 |
break; |
| 252 |
bLFO2Enabled = (pDimRgn->LFO2ControlDepth > 0); |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
| 253 |
break; |
eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number]; |
| 254 |
case ::gig::lfo2_ctrl_foot: |
break; |
|
lfo2_internal_depth = 0; |
|
|
pLFO2->ExtController = 4; // MIDI controller 4 |
|
|
bLFO2Enabled = (pDimRgn->LFO2ControlDepth > 0); |
|
|
break; |
|
|
case ::gig::lfo2_ctrl_internal_modwheel: |
|
|
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
|
|
pLFO2->ExtController = 1; // MIDI controller 1 |
|
|
bLFO2Enabled = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0); |
|
|
break; |
|
|
case ::gig::lfo2_ctrl_internal_foot: |
|
|
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
|
|
pLFO2->ExtController = 4; // MIDI controller 4 |
|
|
bLFO2Enabled = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0); |
|
|
break; |
|
|
default: |
|
|
lfo2_internal_depth = 0; |
|
|
pLFO2->ExtController = 0; // no external controller |
|
|
bLFO2Enabled = false; |
|
|
} |
|
|
if (bLFO2Enabled) pLFO2->trigger(pDimRgn->LFO2Frequency, |
|
|
start_level_max, |
|
|
lfo2_internal_depth, |
|
|
pDimRgn->LFO2ControlDepth, |
|
|
pDimRgn->LFO2FlipPhase, |
|
|
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
| 255 |
} |
} |
| 256 |
|
if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
| 257 |
|
|
| 258 |
|
return eg1controllervalue; |
| 259 |
|
} |
| 260 |
|
|
| 261 |
// setup LFO 3 (VCO LFO) |
Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) { |
| 262 |
{ |
EGInfo eg; |
| 263 |
uint16_t lfo3_internal_depth; |
// (eg1attack is different from the others) |
| 264 |
switch (pDimRgn->LFO3Controller) { |
if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0 |
| 265 |
case ::gig::lfo3_ctrl_internal: |
(pRegion->EG1ControllerAttackInfluence == 0 || |
| 266 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
eg1ControllerValue <= 10)) { // strange GSt special case |
| 267 |
pLFO3->ExtController = 0; // no external controller |
eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger |
| 268 |
bLFO3Enabled = (lfo3_internal_depth > 0); |
} else { |
| 269 |
break; |
eg.Attack = (pRegion->EG1ControllerAttackInfluence) ? |
| 270 |
case ::gig::lfo3_ctrl_modwheel: |
1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ? |
| 271 |
lfo3_internal_depth = 0; |
1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0; |
| 272 |
pLFO3->ExtController = 1; // MIDI controller 1 |
} |
| 273 |
bLFO3Enabled = (pDimRgn->LFO3ControlDepth > 0); |
eg.Decay = (pRegion->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence) * eg1ControllerValue : 1.0; |
| 274 |
break; |
eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0; |
| 275 |
case ::gig::lfo3_ctrl_aftertouch: |
|
| 276 |
lfo3_internal_depth = 0; |
return eg; |
| 277 |
pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet |
} |
| 278 |
bLFO3Enabled = false; // see TODO comment in line above |
|
| 279 |
break; |
double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) { |
| 280 |
case ::gig::lfo3_ctrl_internal_modwheel: |
double eg2controllervalue = 0; |
| 281 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
switch (pRegion->EG2Controller.type) { |
| 282 |
pLFO3->ExtController = 1; // MIDI controller 1 |
case ::gig::eg2_ctrl_t::type_none: // no controller defined |
| 283 |
bLFO3Enabled = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0); |
eg2controllervalue = 0; |
| 284 |
break; |
break; |
| 285 |
case ::gig::lfo3_ctrl_internal_aftertouch: |
case ::gig::eg2_ctrl_t::type_channelaftertouch: |
| 286 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
eg2controllervalue = GetGigEngineChannel()->ControllerTable[128]; |
| 287 |
pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet |
break; |
| 288 |
bLFO3Enabled = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above |
case ::gig::eg2_ctrl_t::type_velocity: |
| 289 |
break; |
eg2controllervalue = MIDIKeyVelocity; |
| 290 |
default: |
break; |
| 291 |
lfo3_internal_depth = 0; |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
| 292 |
pLFO3->ExtController = 0; // no external controller |
eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number]; |
| 293 |
bLFO3Enabled = false; |
break; |
|
} |
|
|
if (bLFO3Enabled) pLFO3->trigger(pDimRgn->LFO3Frequency, |
|
|
start_level_mid, |
|
|
lfo3_internal_depth, |
|
|
pDimRgn->LFO3ControlDepth, |
|
|
false, |
|
|
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
|
| 294 |
} |
} |
| 295 |
|
if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
| 296 |
|
|
| 297 |
|
return eg2controllervalue; |
| 298 |
|
} |
| 299 |
|
|
| 300 |
#if CONFIG_FORCE_FILTER |
Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) { |
| 301 |
const bool bUseFilter = true; |
EGInfo eg; |
| 302 |
#else // use filter only if instrument file told so |
eg.Attack = (pRegion->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence) * eg2ControllerValue : 1.0; |
| 303 |
const bool bUseFilter = pDimRgn->VCFEnabled; |
eg.Decay = (pRegion->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence) * eg2ControllerValue : 1.0; |
| 304 |
#endif // CONFIG_FORCE_FILTER |
eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0; |
|
SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter); |
|
|
if (bUseFilter) { |
|
|
#ifdef CONFIG_OVERRIDE_CUTOFF_CTRL |
|
|
VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL; |
|
|
#else // use the one defined in the instrument file |
|
|
switch (pDimRgn->VCFCutoffController) { |
|
|
case ::gig::vcf_cutoff_ctrl_modwheel: |
|
|
VCFCutoffCtrl.controller = 1; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_effect1: |
|
|
VCFCutoffCtrl.controller = 12; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_effect2: |
|
|
VCFCutoffCtrl.controller = 13; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_breath: |
|
|
VCFCutoffCtrl.controller = 2; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_foot: |
|
|
VCFCutoffCtrl.controller = 4; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_sustainpedal: |
|
|
VCFCutoffCtrl.controller = 64; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_softpedal: |
|
|
VCFCutoffCtrl.controller = 67; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_genpurpose7: |
|
|
VCFCutoffCtrl.controller = 82; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_genpurpose8: |
|
|
VCFCutoffCtrl.controller = 83; |
|
|
break; |
|
|
case ::gig::vcf_cutoff_ctrl_aftertouch: //TODO: not implemented yet |
|
|
case ::gig::vcf_cutoff_ctrl_none: |
|
|
default: |
|
|
VCFCutoffCtrl.controller = 0; |
|
|
break; |
|
|
} |
|
|
#endif // 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 |
|
| 305 |
|
|
| 306 |
#ifndef CONFIG_OVERRIDE_FILTER_TYPE |
return eg; |
| 307 |
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; |
|
| 308 |
|
|
| 309 |
int cvalue; |
void Voice::InitLFO1() { |
| 310 |
if (VCFCutoffCtrl.controller) { |
uint16_t lfo1_internal_depth; |
| 311 |
cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
switch (pRegion->LFO1Controller) { |
| 312 |
if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
case ::gig::lfo1_ctrl_internal: |
| 313 |
// VCFVelocityScale in this case means Minimum cutoff |
lfo1_internal_depth = pRegion->LFO1InternalDepth; |
| 314 |
if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale; |
pLFO1->ExtController = 0; // no external controller |
| 315 |
} |
bLFO1Enabled = (lfo1_internal_depth > 0); |
| 316 |
else { |
break; |
| 317 |
cvalue = pDimRgn->VCFCutoff; |
case ::gig::lfo1_ctrl_modwheel: |
| 318 |
} |
lfo1_internal_depth = 0; |
| 319 |
cutoff *= float(cvalue) * 0.00787402f; // (1 / 127) |
pLFO1->ExtController = 1; // MIDI controller 1 |
| 320 |
if (cutoff > 1.0) cutoff = 1.0; |
bLFO1Enabled = (pRegion->LFO1ControlDepth > 0); |
| 321 |
cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449); |
break; |
| 322 |
if (cutoff < 1.0) cutoff = 1.0; |
case ::gig::lfo1_ctrl_breath: |
| 323 |
|
lfo1_internal_depth = 0; |
| 324 |
// calculate resonance |
pLFO1->ExtController = 2; // MIDI controller 2 |
| 325 |
float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0 |
bLFO1Enabled = (pRegion->LFO1ControlDepth > 0); |
| 326 |
|
break; |
| 327 |
VCFCutoffCtrl.fvalue = cutoff - 1.0; |
case ::gig::lfo1_ctrl_internal_modwheel: |
| 328 |
VCFResonanceCtrl.fvalue = resonance; |
lfo1_internal_depth = pRegion->LFO1InternalDepth; |
| 329 |
} |
pLFO1->ExtController = 1; // MIDI controller 1 |
| 330 |
else { |
bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0); |
| 331 |
VCFCutoffCtrl.controller = 0; |
break; |
| 332 |
VCFResonanceCtrl.controller = 0; |
case ::gig::lfo1_ctrl_internal_breath: |
| 333 |
} |
lfo1_internal_depth = pRegion->LFO1InternalDepth; |
| 334 |
|
pLFO1->ExtController = 2; // MIDI controller 2 |
| 335 |
return 0; // success |
bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0); |
| 336 |
} |
break; |
| 337 |
|
default: |
| 338 |
/** |
lfo1_internal_depth = 0; |
| 339 |
* Renders the audio data for this voice for the current audio fragment. |
pLFO1->ExtController = 0; // no external controller |
| 340 |
* The sample input data can either come from RAM (cached sample or sample |
bLFO1Enabled = false; |
| 341 |
* part) or directly from disk. The output signal will be rendered by |
} |
| 342 |
* resampling / interpolation. If this voice is a disk streaming voice and |
if (bLFO1Enabled) { |
| 343 |
* the voice completely played back the cached RAM part of the sample, it |
pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm), |
| 344 |
* will automatically switch to disk playback for the next RenderAudio() |
pRegion->LFO1Frequency, |
| 345 |
* call. |
pRegion->LFO1Phase, |
| 346 |
* |
LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029 |
| 347 |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
lfo1_internal_depth, |
| 348 |
*/ |
pRegion->LFO1ControlDepth, |
| 349 |
void Voice::Render(uint Samples) { |
pRegion->LFO1FlipPhase, |
| 350 |
|
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
| 351 |
// select default values for synthesis mode bits |
pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0); |
| 352 |
SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false); |
pLFO1->setScriptDepthFactor( |
| 353 |
|
pNote->Override.AmpLFODepth.Value, |
| 354 |
switch (this->PlaybackState) { |
pNote->Override.AmpLFODepth.Final |
| 355 |
|
); |
| 356 |
case playback_state_init: |
if (pNote->Override.AmpLFOFreq.isFinal()) |
| 357 |
this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed |
pLFO1->setScriptFrequencyFinal( |
| 358 |
// no break - continue with playback_state_ram |
pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE |
| 359 |
|
); |
| 360 |
case playback_state_ram: { |
else |
| 361 |
if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping |
pLFO1->setScriptFrequencyFactor( |
| 362 |
|
pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE |
| 363 |
// render current fragment |
); |
|
Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
|
|
|
|
|
if (DiskVoice) { |
|
|
// check if we reached the allowed limit of the sample RAM cache |
|
|
if (finalSynthesisParameters.dPos > MaxRAMPos) { |
|
|
dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos)); |
|
|
this->PlaybackState = playback_state_disk; |
|
|
} |
|
|
} else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) { |
|
|
this->PlaybackState = playback_state_end; |
|
|
} |
|
|
} |
|
|
break; |
|
|
|
|
|
case playback_state_disk: { |
|
|
if (!DiskStreamRef.pStream) { |
|
|
// check if the disk thread created our ordered disk stream in the meantime |
|
|
DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID); |
|
|
if (!DiskStreamRef.pStream) { |
|
|
std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush; |
|
|
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); |
|
|
} |
|
| 364 |
} |
} |
| 365 |
} |
} |
| 366 |
|
|
| 367 |
/** |
void Voice::InitLFO2() { |
| 368 |
* Process given list of MIDI control change and pitch bend events for |
uint16_t lfo2_internal_depth; |
| 369 |
* the given time. |
switch (pRegion->LFO2Controller) { |
| 370 |
* |
case ::gig::lfo2_ctrl_internal: |
| 371 |
* @param itEvent - iterator pointing to the next event to be processed |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
| 372 |
* @param End - youngest time stamp where processing should be stopped |
pLFO2->ExtController = 0; // no external controller |
| 373 |
*/ |
bLFO2Enabled = (lfo2_internal_depth > 0); |
| 374 |
void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) { |
break; |
| 375 |
for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) { |
case ::gig::lfo2_ctrl_modwheel: |
| 376 |
if (itEvent->Type == Event::type_control_change && |
lfo2_internal_depth = 0; |
| 377 |
itEvent->Param.CC.Controller) { // if (valid) MIDI control change event |
pLFO2->ExtController = 1; // MIDI controller 1 |
| 378 |
if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
bLFO2Enabled = (pRegion->LFO2ControlDepth > 0); |
| 379 |
processCutoffEvent(itEvent); |
break; |
| 380 |
} |
case ::gig::lfo2_ctrl_foot: |
| 381 |
if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
lfo2_internal_depth = 0; |
| 382 |
processResonanceEvent(itEvent); |
pLFO2->ExtController = 4; // MIDI controller 4 |
| 383 |
} |
bLFO2Enabled = (pRegion->LFO2ControlDepth > 0); |
| 384 |
if (itEvent->Param.CC.Controller == pLFO1->ExtController) { |
break; |
| 385 |
pLFO1->update(itEvent->Param.CC.Value); |
case ::gig::lfo2_ctrl_internal_modwheel: |
| 386 |
} |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
| 387 |
if (itEvent->Param.CC.Controller == pLFO2->ExtController) { |
pLFO2->ExtController = 1; // MIDI controller 1 |
| 388 |
pLFO2->update(itEvent->Param.CC.Value); |
bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0); |
| 389 |
} |
break; |
| 390 |
if (itEvent->Param.CC.Controller == pLFO3->ExtController) { |
case ::gig::lfo2_ctrl_internal_foot: |
| 391 |
pLFO3->update(itEvent->Param.CC.Value); |
lfo2_internal_depth = pRegion->LFO2InternalDepth; |
| 392 |
} |
pLFO2->ExtController = 4; // MIDI controller 4 |
| 393 |
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0); |
| 394 |
itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { |
break; |
| 395 |
processCrossFadeEvent(itEvent); |
default: |
| 396 |
} |
lfo2_internal_depth = 0; |
| 397 |
} else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event |
pLFO2->ExtController = 0; // no external controller |
| 398 |
processPitchEvent(itEvent); |
bLFO2Enabled = false; |
| 399 |
} |
} |
| 400 |
|
if (bLFO2Enabled) { |
| 401 |
|
pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm), |
| 402 |
|
pRegion->LFO2Frequency, |
| 403 |
|
pRegion->LFO2Phase, |
| 404 |
|
LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029 |
| 405 |
|
lfo2_internal_depth, |
| 406 |
|
pRegion->LFO2ControlDepth, |
| 407 |
|
pRegion->LFO2FlipPhase, |
| 408 |
|
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
| 409 |
|
pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0); |
| 410 |
|
pLFO2->setScriptDepthFactor( |
| 411 |
|
pNote->Override.CutoffLFODepth.Value, |
| 412 |
|
pNote->Override.CutoffLFODepth.Final |
| 413 |
|
); |
| 414 |
|
if (pNote->Override.CutoffLFOFreq.isFinal()) |
| 415 |
|
pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
| 416 |
|
else |
| 417 |
|
pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
| 418 |
} |
} |
| 419 |
} |
} |
| 420 |
|
|
| 421 |
void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) { |
void Voice::InitLFO3() { |
| 422 |
const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents |
uint16_t lfo3_internal_depth; |
| 423 |
finalSynthesisParameters.fFinalPitch *= pitch; |
switch (pRegion->LFO3Controller) { |
| 424 |
PitchBend = pitch; |
case ::gig::lfo3_ctrl_internal: |
| 425 |
} |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
| 426 |
|
pLFO3->ExtController = 0; // no external controller |
| 427 |
void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) { |
bLFO3Enabled = (lfo3_internal_depth > 0); |
| 428 |
CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value); |
break; |
| 429 |
#if CONFIG_PROCESS_MUTED_CHANNELS |
case ::gig::lfo3_ctrl_modwheel: |
| 430 |
const float effectiveVolume = CrossfadeVolume * Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume); |
lfo3_internal_depth = 0; |
| 431 |
#else |
pLFO3->ExtController = 1; // MIDI controller 1 |
| 432 |
const float effectiveVolume = CrossfadeVolume * Volume * pEngineChannel->GlobalVolume; |
bLFO3Enabled = (pRegion->LFO3ControlDepth > 0); |
| 433 |
#endif |
break; |
| 434 |
fFinalVolume = effectiveVolume; |
case ::gig::lfo3_ctrl_aftertouch: |
| 435 |
} |
lfo3_internal_depth = 0; |
| 436 |
|
pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH; |
| 437 |
void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) { |
bLFO3Enabled = true; |
| 438 |
int ccvalue = itEvent->Param.CC.Value; |
break; |
| 439 |
if (VCFCutoffCtrl.value == ccvalue) return; |
case ::gig::lfo3_ctrl_internal_modwheel: |
| 440 |
VCFCutoffCtrl.value == ccvalue; |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
| 441 |
if (pDimRgn->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue; |
pLFO3->ExtController = 1; // MIDI controller 1 |
| 442 |
if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale; |
bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0); |
| 443 |
float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127) |
break; |
| 444 |
if (cutoff > 1.0) cutoff = 1.0; |
case ::gig::lfo3_ctrl_internal_aftertouch: |
| 445 |
cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449); |
lfo3_internal_depth = pRegion->LFO3InternalDepth; |
| 446 |
if (cutoff < 1.0) cutoff = 1.0; |
pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH; |
| 447 |
|
bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0); |
| 448 |
VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time |
break; |
| 449 |
fFinalCutoff = cutoff; |
default: |
| 450 |
} |
lfo3_internal_depth = 0; |
| 451 |
|
pLFO3->ExtController = 0; // no external controller |
| 452 |
void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) { |
bLFO3Enabled = false; |
| 453 |
// convert absolute controller value to differential |
} |
| 454 |
const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value; |
if (bLFO3Enabled) { |
| 455 |
VCFResonanceCtrl.value = itEvent->Param.CC.Value; |
pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm), |
| 456 |
const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
pRegion->LFO3Frequency, |
| 457 |
fFinalResonance += resonancedelta; |
pRegion->LFO3Phase, |
| 458 |
// needed for initialization of parameter |
LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029 |
| 459 |
VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f; |
lfo3_internal_depth, |
| 460 |
} |
pRegion->LFO3ControlDepth, |
| 461 |
|
pRegion->LFO3FlipPhase, |
| 462 |
/** |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
| 463 |
* Synthesizes the current audio fragment for this voice. |
pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0); |
| 464 |
* |
pLFO3->setScriptDepthFactor( |
| 465 |
* @param Samples - number of sample points to be rendered in this audio |
pNote->Override.PitchLFODepth.Value, |
| 466 |
* fragment cycle |
pNote->Override.PitchLFODepth.Final |
| 467 |
* @param pSrc - pointer to input sample data |
); |
| 468 |
* @param Skip - number of sample points to skip in output buffer |
if (pNote->Override.PitchLFOFreq.isFinal()) |
| 469 |
*/ |
pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
| 470 |
void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) { |
else |
| 471 |
finalSynthesisParameters.pOutLeft = &pEngineChannel->pOutputLeft[Skip]; |
pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
| 472 |
finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip]; |
} |
| 473 |
finalSynthesisParameters.pSrc = pSrc; |
} |
| 474 |
|
|
| 475 |
RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first(); |
float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) { |
| 476 |
RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first(); |
float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity); |
| 477 |
|
if (pRegion->VCFKeyboardTracking) { |
| 478 |
if (Skip) { // skip events that happened before this voice was triggered |
cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100); |
| 479 |
while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent; |
} |
| 480 |
while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent; |
return cutoff; |
| 481 |
} |
} |
| 482 |
|
|
| 483 |
uint killPos; |
// This is just called when the voice is triggered. On any subsequent cutoff |
| 484 |
if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos); |
// controller changes ProcessCutoffEvent() is called instead. |
| 485 |
|
float Voice::CalculateFinalCutoff(float cutoffBase) { |
| 486 |
uint i = Skip; |
// if the selected filter type is an official GigaStudio filter type |
| 487 |
while (i < Samples) { |
// then we preserve the original (no matter how odd) historical GSt |
| 488 |
int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples); |
// behaviour identically; for our own filter types though we deviate to |
| 489 |
|
// more meaningful behaviours where appropriate |
| 490 |
// initialize all final synthesis parameters |
const bool isGStFilter = isGStFilterType(pRegion->VCFType); |
| 491 |
finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend; |
|
| 492 |
#if CONFIG_PROCESS_MUTED_CHANNELS |
// get current cutoff CC or velocity value (always 0..127) |
| 493 |
fFinalVolume = this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume); |
float cvalue; |
| 494 |
#else |
if (VCFCutoffCtrl.controller) { |
| 495 |
fFinalVolume = this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume; |
cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller]; |
| 496 |
#endif |
if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
| 497 |
fFinalCutoff = VCFCutoffCtrl.fvalue; |
if (isGStFilter) { |
| 498 |
fFinalResonance = VCFResonanceCtrl.fvalue; |
// VCFVelocityScale in this case means "minimum cutoff" for GSt |
| 499 |
|
if (cvalue < MinCutoff()) cvalue = MinCutoff(); |
| 500 |
// process MIDI control change and pitchbend events for this subfragment |
} else { |
| 501 |
processCCEvents(itCCEvent, iSubFragmentEnd); |
// for our own filter types we interpret "minimum cutoff" |
| 502 |
|
// differently: GSt handles this as a simple hard limit with the |
| 503 |
// process transition events (note on, note off & sustain pedal) |
// consequence that a certain range of the controller is simply |
| 504 |
processTransitionEvents(itNoteEvent, iSubFragmentEnd); |
// dead; so for our filter types we rather remap that to |
| 505 |
|
// restrain within the min_cutoff..127 range as well, but |
| 506 |
// if the voice was killed in this subfragment switch EG1 to fade out stage |
// effectively spanned over the entire controller range (0..127) |
| 507 |
if (itKillEvent && killPos <= iSubFragmentEnd) { |
// to avoid such a "dead" lower controller zone |
| 508 |
EG1.enterFadeOutStage(); |
cvalue = MinCutoff() + (cvalue / 127.f) * float(127 - MinCutoff()); |
| 509 |
itKillEvent = Pool<Event>::Iterator(); |
} |
| 510 |
} |
} else { |
| 511 |
|
// in case of velocity, VCFVelocityScale parameter is already |
| 512 |
// process envelope generators |
// handled on libgig side (so by calling |
| 513 |
switch (EG1.getSegmentType()) { |
// pRegion->GetVelocityCutoff(velo) in CalculateCutoffBase() above) |
| 514 |
case EGADSR::segment_lin: |
cvalue = pRegion->VCFCutoff; |
| 515 |
fFinalVolume *= EG1.processLin(); |
} |
| 516 |
break; |
|
| 517 |
case EGADSR::segment_exp: |
float fco = cutoffBase * cvalue; |
| 518 |
fFinalVolume *= EG1.processExp(); |
if (fco > 127.0f) fco = 127.0f; |
| 519 |
break; |
|
| 520 |
case EGADSR::segment_end: |
// the filter implementations of the original GSt filter types take an |
| 521 |
fFinalVolume *= EG1.getLevel(); |
// abstract cutoff parameter range of 0..127, ... |
| 522 |
break; // noop |
if (isGStFilter) |
| 523 |
} |
return fco; |
| 524 |
switch (EG2.getSegmentType()) { |
|
| 525 |
case EGADSR::segment_lin: |
// ... whereas our own filter types take a cutoff parameter in Hz, so |
| 526 |
fFinalCutoff *= EG2.processLin(); |
// remap here 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz) |
| 527 |
break; |
fco = (fco + 29.f) / (127.f + 29.f); |
| 528 |
case EGADSR::segment_exp: |
fco = fco * fco * fco * fco * 18000.f; |
| 529 |
fFinalCutoff *= EG2.processExp(); |
if (fco > 0.49f * pEngine->SampleRate) |
| 530 |
break; |
fco = 0.49f * pEngine->SampleRate; |
| 531 |
case EGADSR::segment_end: |
return fco; |
| 532 |
fFinalCutoff *= EG2.getLevel(); |
} |
| 533 |
break; // noop |
|
| 534 |
} |
uint8_t Voice::GetVCFCutoffCtrl() { |
| 535 |
if (EG3.active()) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(EG3.render()); |
uint8_t ctrl; |
| 536 |
|
switch (pRegion->VCFCutoffController) { |
| 537 |
// process low frequency oscillators |
case ::gig::vcf_cutoff_ctrl_modwheel: |
| 538 |
if (bLFO1Enabled) fFinalVolume *= pLFO1->render(); |
ctrl = 1; |
| 539 |
if (bLFO2Enabled) fFinalCutoff *= pLFO2->render(); |
break; |
| 540 |
if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render()); |
case ::gig::vcf_cutoff_ctrl_effect1: |
| 541 |
|
ctrl = 12; |
| 542 |
// if filter enabled then update filter coefficients |
break; |
| 543 |
if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) { |
case ::gig::vcf_cutoff_ctrl_effect2: |
| 544 |
finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate); |
ctrl = 13; |
| 545 |
finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate); |
break; |
| 546 |
} |
case ::gig::vcf_cutoff_ctrl_breath: |
| 547 |
|
ctrl = 2; |
| 548 |
// do we need resampling? |
break; |
| 549 |
const float __PLUS_ONE_CENT = 1.000577789506554859250142541782224725466f; |
case ::gig::vcf_cutoff_ctrl_foot: |
| 550 |
const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f; |
ctrl = 4; |
| 551 |
const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT && |
break; |
| 552 |
finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT); |
case ::gig::vcf_cutoff_ctrl_sustainpedal: |
| 553 |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired); |
ctrl = 64; |
| 554 |
|
break; |
| 555 |
// prepare final synthesis parameters structure |
case ::gig::vcf_cutoff_ctrl_softpedal: |
| 556 |
finalSynthesisParameters.fFinalVolumeLeft = fFinalVolume * PanLeft; |
ctrl = 67; |
| 557 |
finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight; |
break; |
| 558 |
finalSynthesisParameters.uiToGo = iSubFragmentEnd - i; |
case ::gig::vcf_cutoff_ctrl_genpurpose7: |
| 559 |
|
ctrl = 82; |
| 560 |
// render audio for one subfragment |
break; |
| 561 |
RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop); |
case ::gig::vcf_cutoff_ctrl_genpurpose8: |
| 562 |
|
ctrl = 83; |
| 563 |
const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch; |
break; |
| 564 |
|
case ::gig::vcf_cutoff_ctrl_aftertouch: |
| 565 |
// increment envelopes' positions |
ctrl = CTRL_TABLE_IDX_AFTERTOUCH; |
| 566 |
if (EG1.active()) { |
break; |
| 567 |
|
case ::gig::vcf_cutoff_ctrl_none: |
| 568 |
// 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 |
default: |
| 569 |
if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) { |
ctrl = 0; |
| 570 |
EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
break; |
| 571 |
} |
} |
| 572 |
|
|
| 573 |
EG1.increment(1); |
return ctrl; |
| 574 |
if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
} |
|
} |
|
|
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 |
|
| 575 |
|
|
| 576 |
Pos = newPos; |
uint8_t Voice::GetVCFResonanceCtrl() { |
| 577 |
i = iSubFragmentEnd; |
uint8_t ctrl; |
| 578 |
|
switch (pRegion->VCFResonanceController) { |
| 579 |
|
case ::gig::vcf_res_ctrl_genpurpose3: |
| 580 |
|
ctrl = 18; |
| 581 |
|
break; |
| 582 |
|
case ::gig::vcf_res_ctrl_genpurpose4: |
| 583 |
|
ctrl = 19; |
| 584 |
|
break; |
| 585 |
|
case ::gig::vcf_res_ctrl_genpurpose5: |
| 586 |
|
ctrl = 80; |
| 587 |
|
break; |
| 588 |
|
case ::gig::vcf_res_ctrl_genpurpose6: |
| 589 |
|
ctrl = 81; |
| 590 |
|
break; |
| 591 |
|
case ::gig::vcf_res_ctrl_none: |
| 592 |
|
default: |
| 593 |
|
ctrl = 0; |
| 594 |
} |
} |
|
} |
|
| 595 |
|
|
| 596 |
/** |
return ctrl; |
| 597 |
* Immediately kill the voice. This method should not be used to kill |
} |
|
* 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 |
|
| 598 |
|
|
| 599 |
if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return; |
void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) { |
| 600 |
this->itKillEvent = itKillEvent; |
EG1.setStateOptions( |
| 601 |
|
pRegion->EG1Options.AttackCancel, |
| 602 |
|
pRegion->EG1Options.AttackHoldCancel, |
| 603 |
|
pRegion->EG1Options.Decay1Cancel, |
| 604 |
|
pRegion->EG1Options.Decay2Cancel, |
| 605 |
|
pRegion->EG1Options.ReleaseCancel |
| 606 |
|
); |
| 607 |
|
EG1.trigger(pRegion->EG1PreAttack, |
| 608 |
|
(pNote && pNote->Override.Attack.isFinal()) ? |
| 609 |
|
pNote->Override.Attack.Value : |
| 610 |
|
RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack, |
| 611 |
|
pRegion->EG1Hold, |
| 612 |
|
(pNote && pNote->Override.Decay.isFinal()) ? |
| 613 |
|
pNote->Override.Decay.Value : |
| 614 |
|
pRegion->EG1Decay1 * egInfo.Decay * velrelease, |
| 615 |
|
(pNote && pNote->Override.Decay.isFinal()) ? |
| 616 |
|
pNote->Override.Decay.Value : |
| 617 |
|
pRegion->EG1Decay2 * egInfo.Decay * velrelease, |
| 618 |
|
pRegion->EG1InfiniteSustain, |
| 619 |
|
(pNote && pNote->Override.Sustain.Final) ? |
| 620 |
|
uint(pNote->Override.Sustain.Value * 1000.f) : |
| 621 |
|
pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f), |
| 622 |
|
(pNote && pNote->Override.Release.isFinal()) ? |
| 623 |
|
pNote->Override.Release.Value : |
| 624 |
|
RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release, |
| 625 |
|
velocityAttenuation, |
| 626 |
|
sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
| 627 |
|
} |
| 628 |
|
|
| 629 |
|
void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) { |
| 630 |
|
EG2.setStateOptions( |
| 631 |
|
pRegion->EG2Options.AttackCancel, |
| 632 |
|
pRegion->EG2Options.AttackHoldCancel, |
| 633 |
|
pRegion->EG2Options.Decay1Cancel, |
| 634 |
|
pRegion->EG2Options.Decay2Cancel, |
| 635 |
|
pRegion->EG2Options.ReleaseCancel |
| 636 |
|
); |
| 637 |
|
EG2.trigger(uint(RgnInfo.EG2PreAttack), |
| 638 |
|
(pNote && pNote->Override.CutoffAttack.isFinal()) ? |
| 639 |
|
pNote->Override.CutoffAttack.Value : |
| 640 |
|
RgnInfo.EG2Attack * egInfo.Attack, |
| 641 |
|
false, |
| 642 |
|
(pNote && pNote->Override.CutoffDecay.isFinal()) ? |
| 643 |
|
pNote->Override.CutoffDecay.Value : |
| 644 |
|
RgnInfo.EG2Decay1 * egInfo.Decay * velrelease, |
| 645 |
|
(pNote && pNote->Override.CutoffDecay.isFinal()) ? |
| 646 |
|
pNote->Override.CutoffDecay.Value : |
| 647 |
|
RgnInfo.EG2Decay2 * egInfo.Decay * velrelease, |
| 648 |
|
RgnInfo.EG2InfiniteSustain, |
| 649 |
|
(pNote && pNote->Override.CutoffSustain.Final) ? |
| 650 |
|
uint(pNote->Override.CutoffSustain.Value * 1000.f) : |
| 651 |
|
uint(RgnInfo.EG2Sustain), |
| 652 |
|
(pNote && pNote->Override.CutoffRelease.isFinal()) ? |
| 653 |
|
pNote->Override.CutoffRelease.Value : |
| 654 |
|
RgnInfo.EG2Release * egInfo.Release * velrelease, |
| 655 |
|
velocityAttenuation, |
| 656 |
|
sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
| 657 |
|
} |
| 658 |
|
|
| 659 |
|
void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) { |
| 660 |
|
dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type)); |
| 661 |
|
|
| 662 |
|
// TODO: The SustainPedal condition could be wrong, maybe the |
| 663 |
|
// check should be if this Voice is in release stage or is a |
| 664 |
|
// release sample instead. Need to test this in GSt. |
| 665 |
|
// -- Andreas |
| 666 |
|
// |
| 667 |
|
// Commented sustain pedal check out. I don't think voices of the same |
| 668 |
|
// note should be stopped at all, because it doesn't sound naturally |
| 669 |
|
// with a drumkit. |
| 670 |
|
// -- Christian, 2013-01-08 |
| 671 |
|
if (itEvent->Param.Note.Key != HostKey() /*|| |
| 672 |
|
!GetGigEngineChannel()->SustainPedal*/) { |
| 673 |
|
dmsg(4,("Voice %p - kill", (void*)this)); |
| 674 |
|
|
| 675 |
|
// kill the voice fast |
| 676 |
|
pEG1->enterFadeOutStage(); |
| 677 |
|
} |
| 678 |
|
} |
| 679 |
|
|
| 680 |
|
void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) { |
| 681 |
|
EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate); |
| 682 |
|
} |
| 683 |
|
|
| 684 |
|
int Voice::CalculatePan(uint8_t pan) { |
| 685 |
|
int p; |
| 686 |
|
// Gst behaviour: -64 and 63 are special cases |
| 687 |
|
if (RgnInfo.Pan == -64) p = pan * 2 - 127; |
| 688 |
|
else if (RgnInfo.Pan == 63) p = pan * 2; |
| 689 |
|
else p = pan + RgnInfo.Pan; |
| 690 |
|
|
| 691 |
|
if (p < 0) return 0; |
| 692 |
|
if (p > 127) return 127; |
| 693 |
|
return p; |
| 694 |
|
} |
| 695 |
|
|
| 696 |
|
release_trigger_t Voice::GetReleaseTriggerFlags() { |
| 697 |
|
release_trigger_t flags = |
| 698 |
|
(pRegion->NoNoteOffReleaseTrigger) ? |
| 699 |
|
release_trigger_none : release_trigger_noteoff; //HACK: currently this method is actually only called by EngineBase if it already knows that this voice requires release trigger, so I took the short way instead of checking (again) the existence of a ::gig::dimension_releasetrigger |
| 700 |
|
switch (pRegion->SustainReleaseTrigger) { |
| 701 |
|
case ::gig::sust_rel_trg_none: |
| 702 |
|
break; |
| 703 |
|
case ::gig::sust_rel_trg_maxvelocity: |
| 704 |
|
flags |= release_trigger_sustain_maxvelocity; |
| 705 |
|
break; |
| 706 |
|
case ::gig::sust_rel_trg_keyvelocity: |
| 707 |
|
flags |= release_trigger_sustain_keyvelocity; |
| 708 |
|
break; |
| 709 |
|
} |
| 710 |
|
return flags; |
| 711 |
} |
} |
| 712 |
|
|
| 713 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |
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