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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
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#include "EGADSR.h" |
#include "EGADSR.h" |
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#include "Manipulator.h" |
#include "Manipulator.h" |
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#include "../../common/Features.h" |
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#include "Synthesizer.h" |
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#include "Voice.h" |
#include "Voice.h" |
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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
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// FIXME: no support for layers (nor crossfades) yet |
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const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
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const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask()); |
const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask()); |
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float Voice::CalculateFilterCutoffCoeff() { |
float Voice::CalculateFilterCutoffCoeff() { |
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return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX); |
return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN); |
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} |
} |
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int Voice::CalculateFilterUpdateMask() { |
int Voice::CalculateFilterUpdateMask() { |
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if (FILTER_UPDATE_PERIOD <= 0) return 0; |
if (CONFIG_FILTER_UPDATE_STEPS <= 0) return 0; |
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int power_of_two; |
int power_of_two; |
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for (power_of_two = 0; 1<<power_of_two < FILTER_UPDATE_PERIOD; power_of_two++); |
for (power_of_two = 0; 1<<power_of_two < CONFIG_FILTER_UPDATE_STEPS; power_of_two++); |
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return (1 << power_of_two) - 1; |
return (1 << power_of_two) - 1; |
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} |
} |
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Voice::Voice() { |
Voice::Voice() { |
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pEngine = NULL; |
pEngine = NULL; |
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pDiskThread = NULL; |
pDiskThread = NULL; |
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Active = false; |
PlaybackState = playback_state_end; |
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pEG1 = NULL; |
pEG1 = NULL; |
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pEG2 = NULL; |
pEG2 = NULL; |
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pEG3 = NULL; |
pEG3 = NULL; |
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pLFO1 = NULL; |
pLFO1 = NULL; |
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pLFO2 = NULL; |
pLFO2 = NULL; |
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pLFO3 = NULL; |
pLFO3 = NULL; |
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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, true); |
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FilterLeft.Reset(); |
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FilterRight.Reset(); |
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} |
} |
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Voice::~Voice() { |
Voice::~Voice() { |
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if (pVCOManipulator) delete pVCOManipulator; |
if (pVCOManipulator) delete pVCOManipulator; |
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} |
} |
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void Voice::SetOutput(AudioOutputDevice* pAudioOutputDevice) { |
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this->pOutputLeft = pAudioOutputDevice->Channel(0)->Buffer(); |
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this->pOutputRight = pAudioOutputDevice->Channel(1)->Buffer(); |
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this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
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this->SampleRate = pAudioOutputDevice->SampleRate(); |
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} |
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void Voice::SetEngine(Engine* pEngine) { |
void Voice::SetEngine(Engine* pEngine) { |
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this->pEngine = pEngine; |
this->pEngine = pEngine; |
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* Initializes and triggers the voice, a disk stream will be launched if |
* Initializes and triggers the voice, a disk stream will be launched if |
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* needed. |
* needed. |
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* |
* |
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* @param pNoteOnEvent - event that caused triggering of this voice |
* @param pEngineChannel - engine channel on which this voice was ordered |
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* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
* @param itNoteOnEvent - event that caused triggering of this voice |
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* @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data |
* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
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* @returns 0 on success, a value < 0 if something failed |
* @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(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument) { |
int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) { |
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if (!pInstrument) { |
this->pEngineChannel = pEngineChannel; |
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dmsg(1,("voice::trigger: !pInstrument\n")); |
this->pDimRgn = pDimRgn; |
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exit(EXIT_FAILURE); |
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} |
#if CONFIG_DEVMODE |
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if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging |
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Active = true; |
dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n")); |
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MIDIKey = pNoteOnEvent->Key; |
} |
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pRegion = pInstrument->GetRegion(MIDIKey); |
#endif // CONFIG_DEVMODE |
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PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed |
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Pos = 0; |
Type = VoiceType; |
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Delay = pNoteOnEvent->FragmentPos(); |
MIDIKey = itNoteOnEvent->Param.Note.Key; |
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pTriggerEvent = pNoteOnEvent; |
PlaybackState = playback_state_init; // mark voice as triggered, but no audio rendered yet |
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Delay = itNoteOnEvent->FragmentPos(); |
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if (!pRegion) { |
itTriggerEvent = itNoteOnEvent; |
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std::cerr << "Audio Thread: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush; |
itKillEvent = Pool<Event>::Iterator(); |
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Kill(); |
KeyGroup = iKeyGroup; |
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return -1; |
pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
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} |
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// calculate volume |
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//TODO: current MIDI controller values are not taken into account yet |
const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity); |
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::gig::DimensionRegion* pDimRgn = NULL; |
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for (int i = pRegion->Dimensions - 1; i >= 0; i--) { // Check if instrument has a velocity split |
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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if (pRegion->pDimensionDefinitions[i].dimension == ::gig::dimension_velocity) { |
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uint DimValues[5] = {0,0,0,0,0}; |
Volume *= pDimRgn->SampleAttenuation; |
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DimValues[i] = pNoteOnEvent->Velocity; |
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pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]); |
// 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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// select channel mode (mono or stereo) |
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SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2); |
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// get starting crossfade volume level |
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switch (pDimRgn->AttenuationController.type) { |
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case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
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CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet |
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break; |
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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if (!pDimRgn) { // if there was no velocity split |
break; |
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pDimRgn = pRegion->GetDimensionRegionByValue(0,0,0,0,0); |
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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} |
} |
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pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
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PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
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Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
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// Check if the sample needs disk streaming or is too short for that |
// Check if the sample needs disk streaming or is too short for that |
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long cachedsamples = pSample->GetCache().Size / pSample->FrameSize; |
long cachedsamples = pSample->GetCache().Size / pSample->FrameSize; |
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DiskVoice = cachedsamples < pSample->SamplesTotal; |
DiskVoice = cachedsamples < pSample->SamplesTotal; |
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if (DiskVoice) { // voice to be streamed from disk |
if (DiskVoice) { // voice to be streamed from disk |
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MaxRAMPos = cachedsamples - (MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK) |
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 |
// 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) { |
if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) { |
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if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) { |
if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) { |
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dmsg(1,("Disk stream order failed!\n")); |
dmsg(1,("Disk stream order failed!\n")); |
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Kill(); |
KillImmediately(); |
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return -1; |
return -1; |
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} |
} |
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dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no")); |
dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no")); |
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// calculate initial pitch value |
// calculate initial pitch value |
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{ |
{ |
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double pitchbasecents = pDimRgn->FineTune * 10; |
double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
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if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
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this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents); |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); |
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this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
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} |
} |
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// the length of the decay and release curves are dependent on the velocity |
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Volume = pDimRgn->GetVelocityAttenuation(pNoteOnEvent->Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) |
const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity); |
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// setup EG 1 (VCA EG) |
// setup EG 1 (VCA EG) |
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{ |
{ |
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eg1controllervalue = 0; // TODO: aftertouch not yet supported |
eg1controllervalue = 0; // TODO: aftertouch not yet supported |
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break; |
break; |
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case ::gig::eg1_ctrl_t::type_velocity: |
case ::gig::eg1_ctrl_t::type_velocity: |
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eg1controllervalue = pNoteOnEvent->Velocity; |
eg1controllervalue = itNoteOnEvent->Param.Note.Velocity; |
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break; |
break; |
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case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
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eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
eg1controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
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break; |
break; |
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} |
} |
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if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
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// calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned) |
// calculate influence of EG1 controller on EG1's parameters |
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double eg1attack = (pDimRgn->EG1ControllerAttackInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 0.0; |
// (eg1attack is different from the others) |
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double eg1decay = (pDimRgn->EG1ControllerDecayInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence) * eg1controllervalue : 0.0; |
double eg1attack = (pDimRgn->EG1ControllerAttackInfluence) ? |
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double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 0.0; |
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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pEG1->Trigger(pDimRgn->EG1PreAttack, |
pEG1->Trigger(pDimRgn->EG1PreAttack, |
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pDimRgn->EG1Attack + eg1attack, |
pDimRgn->EG1Attack * eg1attack, |
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pDimRgn->EG1Hold, |
pDimRgn->EG1Hold, |
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pSample->LoopStart, |
pSample->LoopStart, |
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pDimRgn->EG1Decay1 + eg1decay, |
pDimRgn->EG1Decay1 * eg1decay * velrelease, |
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pDimRgn->EG1Decay2 + eg1decay, |
pDimRgn->EG1Decay2 * eg1decay * velrelease, |
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pDimRgn->EG1InfiniteSustain, |
pDimRgn->EG1InfiniteSustain, |
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pDimRgn->EG1Sustain, |
pDimRgn->EG1Sustain, |
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pDimRgn->EG1Release + eg1release, |
pDimRgn->EG1Release * eg1release * velrelease, |
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Delay); |
// the SSE synthesis implementation requires |
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// the vca start to be 16 byte aligned |
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SYNTHESIS_MODE_GET_IMPLEMENTATION(SynthesisMode) ? |
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Delay & 0xfffffffc : Delay, |
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velocityAttenuation); |
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} |
} |
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#if ENABLE_FILTER |
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// setup EG 2 (VCF Cutoff EG) |
// setup EG 2 (VCF Cutoff EG) |
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{ |
{ |
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// get current value of EG2 controller |
// get current value of EG2 controller |
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eg2controllervalue = 0; // TODO: aftertouch not yet supported |
eg2controllervalue = 0; // TODO: aftertouch not yet supported |
287 |
break; |
break; |
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case ::gig::eg2_ctrl_t::type_velocity: |
case ::gig::eg2_ctrl_t::type_velocity: |
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eg2controllervalue = pNoteOnEvent->Velocity; |
eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; |
290 |
break; |
break; |
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case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
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eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
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break; |
break; |
294 |
} |
} |
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if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
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// calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned) |
// calculate influence of EG2 controller on EG2's parameters |
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double eg2attack = (pDimRgn->EG2ControllerAttackInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence) * eg2controllervalue : 0.0; |
double eg2attack = (pDimRgn->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence) * eg2controllervalue : 1.0; |
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double eg2decay = (pDimRgn->EG2ControllerDecayInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence) * eg2controllervalue : 0.0; |
double eg2decay = (pDimRgn->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence) * eg2controllervalue : 1.0; |
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double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 0.0; |
double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0; |
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pEG2->Trigger(pDimRgn->EG2PreAttack, |
pEG2->Trigger(pDimRgn->EG2PreAttack, |
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pDimRgn->EG2Attack + eg2attack, |
pDimRgn->EG2Attack * eg2attack, |
304 |
false, |
false, |
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pSample->LoopStart, |
pSample->LoopStart, |
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pDimRgn->EG2Decay1 + eg2decay, |
pDimRgn->EG2Decay1 * eg2decay * velrelease, |
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pDimRgn->EG2Decay2 + eg2decay, |
pDimRgn->EG2Decay2 * eg2decay * velrelease, |
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pDimRgn->EG2InfiniteSustain, |
pDimRgn->EG2InfiniteSustain, |
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pDimRgn->EG2Sustain, |
pDimRgn->EG2Sustain, |
310 |
pDimRgn->EG2Release + eg2release, |
pDimRgn->EG2Release * eg2release * velrelease, |
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Delay); |
Delay, |
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velocityAttenuation); |
313 |
} |
} |
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#endif // ENABLE_FILTER |
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315 |
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316 |
// setup EG 3 (VCO EG) |
// setup EG 3 (VCO EG) |
327 |
case ::gig::lfo1_ctrl_internal: |
case ::gig::lfo1_ctrl_internal: |
328 |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
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pLFO1->ExtController = 0; // no external controller |
pLFO1->ExtController = 0; // no external controller |
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bLFO1Enabled = (lfo1_internal_depth > 0); |
331 |
break; |
break; |
332 |
case ::gig::lfo1_ctrl_modwheel: |
case ::gig::lfo1_ctrl_modwheel: |
333 |
lfo1_internal_depth = 0; |
lfo1_internal_depth = 0; |
334 |
pLFO1->ExtController = 1; // MIDI controller 1 |
pLFO1->ExtController = 1; // MIDI controller 1 |
335 |
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bLFO1Enabled = (pDimRgn->LFO1ControlDepth > 0); |
336 |
break; |
break; |
337 |
case ::gig::lfo1_ctrl_breath: |
case ::gig::lfo1_ctrl_breath: |
338 |
lfo1_internal_depth = 0; |
lfo1_internal_depth = 0; |
339 |
pLFO1->ExtController = 2; // MIDI controller 2 |
pLFO1->ExtController = 2; // MIDI controller 2 |
340 |
|
bLFO1Enabled = (pDimRgn->LFO1ControlDepth > 0); |
341 |
break; |
break; |
342 |
case ::gig::lfo1_ctrl_internal_modwheel: |
case ::gig::lfo1_ctrl_internal_modwheel: |
343 |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
344 |
pLFO1->ExtController = 1; // MIDI controller 1 |
pLFO1->ExtController = 1; // MIDI controller 1 |
345 |
|
bLFO1Enabled = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0); |
346 |
break; |
break; |
347 |
case ::gig::lfo1_ctrl_internal_breath: |
case ::gig::lfo1_ctrl_internal_breath: |
348 |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
lfo1_internal_depth = pDimRgn->LFO1InternalDepth; |
349 |
pLFO1->ExtController = 2; // MIDI controller 2 |
pLFO1->ExtController = 2; // MIDI controller 2 |
350 |
|
bLFO1Enabled = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0); |
351 |
break; |
break; |
352 |
default: |
default: |
353 |
lfo1_internal_depth = 0; |
lfo1_internal_depth = 0; |
354 |
pLFO1->ExtController = 0; // no external controller |
pLFO1->ExtController = 0; // no external controller |
355 |
|
bLFO1Enabled = false; |
356 |
} |
} |
357 |
pLFO1->Trigger(pDimRgn->LFO1Frequency, |
if (bLFO1Enabled) pLFO1->Trigger(pDimRgn->LFO1Frequency, |
358 |
lfo1_internal_depth, |
lfo1_internal_depth, |
359 |
pDimRgn->LFO1ControlDepth, |
pDimRgn->LFO1ControlDepth, |
360 |
pEngine->ControllerTable[pLFO1->ExtController], |
pEngineChannel->ControllerTable[pLFO1->ExtController], |
361 |
pDimRgn->LFO1FlipPhase, |
pDimRgn->LFO1FlipPhase, |
362 |
this->SampleRate, |
pEngine->SampleRate, |
363 |
Delay); |
Delay); |
364 |
} |
} |
365 |
|
|
366 |
#if ENABLE_FILTER |
|
367 |
// setup LFO 2 (VCF Cutoff LFO) |
// setup LFO 2 (VCF Cutoff LFO) |
368 |
{ |
{ |
369 |
uint16_t lfo2_internal_depth; |
uint16_t lfo2_internal_depth; |
371 |
case ::gig::lfo2_ctrl_internal: |
case ::gig::lfo2_ctrl_internal: |
372 |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
373 |
pLFO2->ExtController = 0; // no external controller |
pLFO2->ExtController = 0; // no external controller |
374 |
|
bLFO2Enabled = (lfo2_internal_depth > 0); |
375 |
break; |
break; |
376 |
case ::gig::lfo2_ctrl_modwheel: |
case ::gig::lfo2_ctrl_modwheel: |
377 |
lfo2_internal_depth = 0; |
lfo2_internal_depth = 0; |
378 |
pLFO2->ExtController = 1; // MIDI controller 1 |
pLFO2->ExtController = 1; // MIDI controller 1 |
379 |
|
bLFO2Enabled = (pDimRgn->LFO2ControlDepth > 0); |
380 |
break; |
break; |
381 |
case ::gig::lfo2_ctrl_foot: |
case ::gig::lfo2_ctrl_foot: |
382 |
lfo2_internal_depth = 0; |
lfo2_internal_depth = 0; |
383 |
pLFO2->ExtController = 4; // MIDI controller 4 |
pLFO2->ExtController = 4; // MIDI controller 4 |
384 |
|
bLFO2Enabled = (pDimRgn->LFO2ControlDepth > 0); |
385 |
break; |
break; |
386 |
case ::gig::lfo2_ctrl_internal_modwheel: |
case ::gig::lfo2_ctrl_internal_modwheel: |
387 |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
388 |
pLFO2->ExtController = 1; // MIDI controller 1 |
pLFO2->ExtController = 1; // MIDI controller 1 |
389 |
|
bLFO2Enabled = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0); |
390 |
break; |
break; |
391 |
case ::gig::lfo2_ctrl_internal_foot: |
case ::gig::lfo2_ctrl_internal_foot: |
392 |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
lfo2_internal_depth = pDimRgn->LFO2InternalDepth; |
393 |
pLFO2->ExtController = 4; // MIDI controller 4 |
pLFO2->ExtController = 4; // MIDI controller 4 |
394 |
|
bLFO2Enabled = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0); |
395 |
break; |
break; |
396 |
default: |
default: |
397 |
lfo2_internal_depth = 0; |
lfo2_internal_depth = 0; |
398 |
pLFO2->ExtController = 0; // no external controller |
pLFO2->ExtController = 0; // no external controller |
399 |
|
bLFO2Enabled = false; |
400 |
} |
} |
401 |
pLFO2->Trigger(pDimRgn->LFO2Frequency, |
if (bLFO2Enabled) pLFO2->Trigger(pDimRgn->LFO2Frequency, |
402 |
lfo2_internal_depth, |
lfo2_internal_depth, |
403 |
pDimRgn->LFO2ControlDepth, |
pDimRgn->LFO2ControlDepth, |
404 |
pEngine->ControllerTable[pLFO2->ExtController], |
pEngineChannel->ControllerTable[pLFO2->ExtController], |
405 |
pDimRgn->LFO2FlipPhase, |
pDimRgn->LFO2FlipPhase, |
406 |
this->SampleRate, |
pEngine->SampleRate, |
407 |
Delay); |
Delay); |
408 |
} |
} |
409 |
#endif // ENABLE_FILTER |
|
410 |
|
|
411 |
// setup LFO 3 (VCO LFO) |
// setup LFO 3 (VCO LFO) |
412 |
{ |
{ |
415 |
case ::gig::lfo3_ctrl_internal: |
case ::gig::lfo3_ctrl_internal: |
416 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
417 |
pLFO3->ExtController = 0; // no external controller |
pLFO3->ExtController = 0; // no external controller |
418 |
|
bLFO3Enabled = (lfo3_internal_depth > 0); |
419 |
break; |
break; |
420 |
case ::gig::lfo3_ctrl_modwheel: |
case ::gig::lfo3_ctrl_modwheel: |
421 |
lfo3_internal_depth = 0; |
lfo3_internal_depth = 0; |
422 |
pLFO3->ExtController = 1; // MIDI controller 1 |
pLFO3->ExtController = 1; // MIDI controller 1 |
423 |
|
bLFO3Enabled = (pDimRgn->LFO3ControlDepth > 0); |
424 |
break; |
break; |
425 |
case ::gig::lfo3_ctrl_aftertouch: |
case ::gig::lfo3_ctrl_aftertouch: |
426 |
lfo3_internal_depth = 0; |
lfo3_internal_depth = 0; |
427 |
pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet |
pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet |
428 |
|
bLFO3Enabled = false; // see TODO comment in line above |
429 |
break; |
break; |
430 |
case ::gig::lfo3_ctrl_internal_modwheel: |
case ::gig::lfo3_ctrl_internal_modwheel: |
431 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
432 |
pLFO3->ExtController = 1; // MIDI controller 1 |
pLFO3->ExtController = 1; // MIDI controller 1 |
433 |
|
bLFO3Enabled = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0); |
434 |
break; |
break; |
435 |
case ::gig::lfo3_ctrl_internal_aftertouch: |
case ::gig::lfo3_ctrl_internal_aftertouch: |
436 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
437 |
pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet |
pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet |
438 |
|
bLFO3Enabled = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above |
439 |
break; |
break; |
440 |
default: |
default: |
441 |
lfo3_internal_depth = 0; |
lfo3_internal_depth = 0; |
442 |
pLFO3->ExtController = 0; // no external controller |
pLFO3->ExtController = 0; // no external controller |
443 |
|
bLFO3Enabled = false; |
444 |
} |
} |
445 |
pLFO3->Trigger(pDimRgn->LFO3Frequency, |
if (bLFO3Enabled) pLFO3->Trigger(pDimRgn->LFO3Frequency, |
446 |
lfo3_internal_depth, |
lfo3_internal_depth, |
447 |
pDimRgn->LFO3ControlDepth, |
pDimRgn->LFO3ControlDepth, |
448 |
pEngine->ControllerTable[pLFO3->ExtController], |
pEngineChannel->ControllerTable[pLFO3->ExtController], |
449 |
false, |
false, |
450 |
this->SampleRate, |
pEngine->SampleRate, |
451 |
Delay); |
Delay); |
452 |
} |
} |
453 |
|
|
454 |
#if ENABLE_FILTER |
|
455 |
#if FORCE_FILTER_USAGE |
#if CONFIG_FORCE_FILTER |
456 |
FilterLeft.Enabled = FilterRight.Enabled = true; |
const bool bUseFilter = true; |
457 |
#else // use filter only if instrument file told so |
#else // use filter only if instrument file told so |
458 |
FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled; |
const bool bUseFilter = pDimRgn->VCFEnabled; |
459 |
#endif // FORCE_FILTER_USAGE |
#endif // CONFIG_FORCE_FILTER |
460 |
if (pDimRgn->VCFEnabled) { |
SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter); |
461 |
#ifdef OVERRIDE_FILTER_CUTOFF_CTRL |
if (bUseFilter) { |
462 |
VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL; |
#ifdef CONFIG_OVERRIDE_CUTOFF_CTRL |
463 |
|
VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL; |
464 |
#else // use the one defined in the instrument file |
#else // use the one defined in the instrument file |
465 |
switch (pDimRgn->VCFCutoffController) { |
switch (pDimRgn->VCFCutoffController) { |
466 |
case ::gig::vcf_cutoff_ctrl_modwheel: |
case ::gig::vcf_cutoff_ctrl_modwheel: |
496 |
VCFCutoffCtrl.controller = 0; |
VCFCutoffCtrl.controller = 0; |
497 |
break; |
break; |
498 |
} |
} |
499 |
#endif // OVERRIDE_FILTER_CUTOFF_CTRL |
#endif // CONFIG_OVERRIDE_CUTOFF_CTRL |
500 |
|
|
501 |
#ifdef OVERRIDE_FILTER_RES_CTRL |
#ifdef CONFIG_OVERRIDE_RESONANCE_CTRL |
502 |
VCFResonanceCtrl.controller = OVERRIDE_FILTER_RES_CTRL; |
VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL; |
503 |
#else // use the one defined in the instrument file |
#else // use the one defined in the instrument file |
504 |
switch (pDimRgn->VCFResonanceController) { |
switch (pDimRgn->VCFResonanceController) { |
505 |
case ::gig::vcf_res_ctrl_genpurpose3: |
case ::gig::vcf_res_ctrl_genpurpose3: |
518 |
default: |
default: |
519 |
VCFResonanceCtrl.controller = 0; |
VCFResonanceCtrl.controller = 0; |
520 |
} |
} |
521 |
#endif // OVERRIDE_FILTER_RES_CTRL |
#endif // CONFIG_OVERRIDE_RESONANCE_CTRL |
522 |
|
|
523 |
#ifndef OVERRIDE_FILTER_TYPE |
#ifndef CONFIG_OVERRIDE_FILTER_TYPE |
524 |
FilterLeft.SetType(pDimRgn->VCFType); |
FilterLeft.SetType(pDimRgn->VCFType); |
525 |
FilterRight.SetType(pDimRgn->VCFType); |
FilterRight.SetType(pDimRgn->VCFType); |
526 |
#else // override filter type |
#else // override filter type |
527 |
FilterLeft.SetType(OVERRIDE_FILTER_TYPE); |
FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE); |
528 |
FilterRight.SetType(OVERRIDE_FILTER_TYPE); |
FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE); |
529 |
#endif // OVERRIDE_FILTER_TYPE |
#endif // CONFIG_OVERRIDE_FILTER_TYPE |
530 |
|
|
531 |
VCFCutoffCtrl.value = pEngine->ControllerTable[VCFCutoffCtrl.controller]; |
VCFCutoffCtrl.value = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
532 |
VCFResonanceCtrl.value = pEngine->ControllerTable[VCFResonanceCtrl.controller]; |
VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller]; |
533 |
|
|
534 |
// calculate cutoff frequency |
// calculate cutoff frequency |
535 |
float cutoff = (!VCFCutoffCtrl.controller) |
float cutoff = pDimRgn->GetVelocityCutoff(itNoteOnEvent->Param.Note.Velocity); |
536 |
? exp((float) (127 - pNoteOnEvent->Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX |
if (pDimRgn->VCFKeyboardTracking) { |
537 |
: exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX; |
cutoff *= exp((itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12) |
538 |
|
} |
539 |
|
CutoffBase = cutoff; |
540 |
|
|
541 |
|
int cvalue; |
542 |
|
if (VCFCutoffCtrl.controller) { |
543 |
|
cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
544 |
|
if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
545 |
|
if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale; |
546 |
|
} |
547 |
|
else { |
548 |
|
cvalue = pDimRgn->VCFCutoff; |
549 |
|
} |
550 |
|
cutoff *= float(cvalue) * 0.00787402f; // (1 / 127) |
551 |
|
if (cutoff > 1.0) cutoff = 1.0; |
552 |
|
cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN; |
553 |
|
|
554 |
// calculate resonance |
// calculate resonance |
555 |
float resonance = (float) VCFResonanceCtrl.value * 0.00787f; // 0.0..1.0 |
float resonance = (float) VCFResonanceCtrl.value * 0.00787f; // 0.0..1.0 |
556 |
if (pDimRgn->VCFKeyboardTracking) { |
if (pDimRgn->VCFKeyboardTracking) { |
557 |
resonance += (float) (pNoteOnEvent->Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; |
resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; |
558 |
} |
} |
559 |
Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0) |
Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0) |
560 |
|
|
561 |
VCFCutoffCtrl.fvalue = cutoff - FILTER_CUTOFF_MIN; |
VCFCutoffCtrl.fvalue = cutoff - CONFIG_FILTER_CUTOFF_MIN; |
562 |
VCFResonanceCtrl.fvalue = resonance; |
VCFResonanceCtrl.fvalue = resonance; |
563 |
|
|
|
FilterLeft.SetParameters(cutoff, resonance, SampleRate); |
|
|
FilterRight.SetParameters(cutoff, resonance, SampleRate); |
|
|
|
|
564 |
FilterUpdateCounter = -1; |
FilterUpdateCounter = -1; |
565 |
} |
} |
566 |
else { |
else { |
567 |
VCFCutoffCtrl.controller = 0; |
VCFCutoffCtrl.controller = 0; |
568 |
VCFResonanceCtrl.controller = 0; |
VCFResonanceCtrl.controller = 0; |
569 |
} |
} |
|
#endif // ENABLE_FILTER |
|
|
|
|
|
// ************************************************ |
|
|
// TODO: ARTICULATION DATA HANDLING IS MISSING HERE |
|
|
// ************************************************ |
|
570 |
|
|
571 |
return 0; // success |
return 0; // success |
572 |
} |
} |
584 |
*/ |
*/ |
585 |
void Voice::Render(uint Samples) { |
void Voice::Render(uint Samples) { |
586 |
|
|
587 |
|
// select default values for synthesis mode bits |
588 |
|
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, (PitchBase * PitchBend) != 1.0f); |
589 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, true); |
590 |
|
SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false); |
591 |
|
|
592 |
// Reset the synthesis parameter matrix |
// Reset the synthesis parameter matrix |
593 |
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume); |
|
594 |
|
#if CONFIG_PROCESS_MUTED_CHANNELS |
595 |
|
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume)); |
596 |
|
#else |
597 |
|
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume); |
598 |
|
#endif |
599 |
pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase); |
pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase); |
|
#if ENABLE_FILTER |
|
600 |
pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue); |
pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue); |
601 |
pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue); |
pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue); |
|
#endif // ENABLE_FILTER |
|
|
|
|
602 |
|
|
603 |
// Apply events to the synthesis parameter matrix |
// Apply events to the synthesis parameter matrix |
604 |
ProcessEvents(Samples); |
ProcessEvents(Samples); |
605 |
|
|
|
|
|
606 |
// Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment |
// Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment |
607 |
pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
pEG1->Process(Samples, pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent); |
608 |
#if ENABLE_FILTER |
pEG2->Process(Samples, pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
609 |
pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
if (pEG3->Process(Samples)) { // if pitch EG is active |
610 |
#endif // ENABLE_FILTER |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
611 |
pEG3->Process(Samples); |
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
612 |
pLFO1->Process(Samples); |
} |
613 |
#if ENABLE_FILTER |
if (bLFO1Enabled) pLFO1->Process(Samples); |
614 |
pLFO2->Process(Samples); |
if (bLFO2Enabled) pLFO2->Process(Samples); |
615 |
#endif // ENABLE_FILTER |
if (bLFO3Enabled) { |
616 |
pLFO3->Process(Samples); |
if (pLFO3->Process(Samples)) { // if pitch LFO modulation is active |
617 |
|
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
618 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
619 |
#if ENABLE_FILTER |
} |
620 |
CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters |
} |
|
#endif // ENABLE_FILTER |
|
621 |
|
|
622 |
|
if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) |
623 |
|
CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters |
624 |
|
|
625 |
switch (this->PlaybackState) { |
switch (this->PlaybackState) { |
626 |
|
|
627 |
|
case playback_state_init: |
628 |
|
this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed |
629 |
|
// no break - continue with playback_state_ram |
630 |
|
|
631 |
case playback_state_ram: { |
case playback_state_ram: { |
632 |
if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping |
633 |
else Interpolate(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
|
634 |
|
// render current fragment |
635 |
|
Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
636 |
|
|
637 |
if (DiskVoice) { |
if (DiskVoice) { |
638 |
// check if we reached the allowed limit of the sample RAM cache |
// check if we reached the allowed limit of the sample RAM cache |
639 |
if (Pos > MaxRAMPos) { |
if (Pos > MaxRAMPos) { |
653 |
DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID); |
DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID); |
654 |
if (!DiskStreamRef.pStream) { |
if (!DiskStreamRef.pStream) { |
655 |
std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush; |
std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush; |
656 |
Kill(); |
KillImmediately(); |
657 |
return; |
return; |
658 |
} |
} |
659 |
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos)); |
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(Pos) - MaxRAMPos)); |
660 |
Pos -= RTMath::DoubleToInt(Pos); |
Pos -= int(Pos); |
661 |
|
RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet |
662 |
} |
} |
663 |
|
|
664 |
|
const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace(); |
665 |
|
|
666 |
// add silence sample at the end if we reached the end of the stream (for the interpolator) |
// add silence sample at the end if we reached the end of the stream (for the interpolator) |
667 |
if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) { |
if (DiskStreamRef.State == Stream::state_end) { |
668 |
DiskStreamRef.pStream->WriteSilence((MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels); |
const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm |
669 |
this->PlaybackState = playback_state_end; |
if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) { |
670 |
|
// remember how many sample words there are before any silence has been added |
671 |
|
if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead; |
672 |
|
DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead); |
673 |
|
} |
674 |
} |
} |
675 |
|
|
676 |
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
677 |
Interpolate(Samples, ptr, Delay); |
|
678 |
DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); |
// render current audio fragment |
679 |
Pos -= RTMath::DoubleToInt(Pos); |
Synthesize(Samples, ptr, Delay); |
680 |
|
|
681 |
|
const int iPos = (int) Pos; |
682 |
|
const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read |
683 |
|
DiskStreamRef.pStream->IncrementReadPos(readSampleWords); |
684 |
|
Pos -= iPos; // just keep fractional part of Pos |
685 |
|
|
686 |
|
// change state of voice to 'end' if we really reached the end of the sample data |
687 |
|
if (RealSampleWordsLeftToRead >= 0) { |
688 |
|
RealSampleWordsLeftToRead -= readSampleWords; |
689 |
|
if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end; |
690 |
|
} |
691 |
} |
} |
692 |
break; |
break; |
693 |
|
|
694 |
case playback_state_end: |
case playback_state_end: |
695 |
Kill(); // free voice |
std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush; |
696 |
break; |
break; |
697 |
} |
} |
698 |
|
|
|
|
|
|
#if ENABLE_FILTER |
|
699 |
// Reset synthesis event lists (except VCO, as VCO events apply channel wide currently) |
// Reset synthesis event lists (except VCO, as VCO events apply channel wide currently) |
700 |
pEngine->pSynthesisEvents[Event::destination_vcfc]->clear(); |
pEngineChannel->pSynthesisEvents[Event::destination_vca]->clear(); |
701 |
pEngine->pSynthesisEvents[Event::destination_vcfr]->clear(); |
pEngineChannel->pSynthesisEvents[Event::destination_vcfc]->clear(); |
702 |
#endif // ENABLE_FILTER |
pEngineChannel->pSynthesisEvents[Event::destination_vcfr]->clear(); |
703 |
|
|
704 |
// Reset delay |
// Reset delay |
705 |
Delay = 0; |
Delay = 0; |
706 |
|
|
707 |
pTriggerEvent = NULL; |
itTriggerEvent = Pool<Event>::Iterator(); |
708 |
|
|
709 |
// If release stage finished, let the voice be killed |
// If sample stream or release stage finished, kill the voice |
710 |
if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end; |
if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately(); |
711 |
} |
} |
712 |
|
|
713 |
/** |
/** |
718 |
pLFO1->Reset(); |
pLFO1->Reset(); |
719 |
pLFO2->Reset(); |
pLFO2->Reset(); |
720 |
pLFO3->Reset(); |
pLFO3->Reset(); |
721 |
|
FilterLeft.Reset(); |
722 |
|
FilterRight.Reset(); |
723 |
DiskStreamRef.pStream = NULL; |
DiskStreamRef.pStream = NULL; |
724 |
DiskStreamRef.hStream = 0; |
DiskStreamRef.hStream = 0; |
725 |
DiskStreamRef.State = Stream::state_unused; |
DiskStreamRef.State = Stream::state_unused; |
726 |
DiskStreamRef.OrderID = 0; |
DiskStreamRef.OrderID = 0; |
727 |
Active = false; |
PlaybackState = playback_state_end; |
728 |
|
itTriggerEvent = Pool<Event>::Iterator(); |
729 |
|
itKillEvent = Pool<Event>::Iterator(); |
730 |
} |
} |
731 |
|
|
732 |
/** |
/** |
739 |
void Voice::ProcessEvents(uint Samples) { |
void Voice::ProcessEvents(uint Samples) { |
740 |
|
|
741 |
// dispatch control change events |
// dispatch control change events |
742 |
Event* pCCEvent = pEngine->pCCEvents->first(); |
RTList<Event>::Iterator itCCEvent = pEngineChannel->pCCEvents->first(); |
743 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
744 |
while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next(); |
while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent; |
745 |
} |
} |
746 |
while (pCCEvent) { |
while (itCCEvent) { |
747 |
if (pCCEvent->Controller) { // if valid MIDI controller |
if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller |
748 |
#if ENABLE_FILTER |
if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
749 |
if (pCCEvent->Controller == VCFCutoffCtrl.controller) { |
*pEngineChannel->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent; |
750 |
pEngine->pSynthesisEvents[Event::destination_vcfc]->alloc_assign(*pCCEvent); |
} |
751 |
|
if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
752 |
|
*pEngineChannel->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent; |
753 |
} |
} |
754 |
if (pCCEvent->Controller == VCFResonanceCtrl.controller) { |
if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) { |
755 |
pEngine->pSynthesisEvents[Event::destination_vcfr]->alloc_assign(*pCCEvent); |
pLFO1->SendEvent(itCCEvent); |
756 |
} |
} |
757 |
#endif // ENABLE_FILTER |
if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) { |
758 |
if (pCCEvent->Controller == pLFO1->ExtController) { |
pLFO2->SendEvent(itCCEvent); |
|
pLFO1->SendEvent(pCCEvent); |
|
759 |
} |
} |
760 |
#if ENABLE_FILTER |
if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) { |
761 |
if (pCCEvent->Controller == pLFO2->ExtController) { |
pLFO3->SendEvent(itCCEvent); |
|
pLFO2->SendEvent(pCCEvent); |
|
762 |
} |
} |
763 |
#endif // ENABLE_FILTER |
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
764 |
if (pCCEvent->Controller == pLFO3->ExtController) { |
itCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event |
765 |
pLFO3->SendEvent(pCCEvent); |
*pEngineChannel->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent; |
766 |
} |
} |
767 |
} |
} |
768 |
|
|
769 |
pCCEvent = pEngine->pCCEvents->next(); |
++itCCEvent; |
770 |
} |
} |
771 |
|
|
772 |
|
|
773 |
// process pitch events |
// process pitch events |
774 |
{ |
{ |
775 |
RTEList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco]; |
RTList<Event>* pVCOEventList = pEngineChannel->pSynthesisEvents[Event::destination_vco]; |
776 |
Event* pVCOEvent = pVCOEventList->first(); |
RTList<Event>::Iterator itVCOEvent = pVCOEventList->first(); |
777 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
778 |
while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next(); |
while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent; |
779 |
} |
} |
780 |
// apply old pitchbend value until first pitch event occurs |
// apply old pitchbend value until first pitch event occurs |
781 |
if (this->PitchBend != 1.0) { |
if (this->PitchBend != 1.0) { |
782 |
uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples; |
uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples; |
783 |
for (uint i = Delay; i < end; i++) { |
for (uint i = Delay; i < end; i++) { |
784 |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend; |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend; |
785 |
} |
} |
786 |
} |
} |
787 |
float pitch; |
float pitch; |
788 |
while (pVCOEvent) { |
while (itVCOEvent) { |
789 |
Event* pNextVCOEvent = pVCOEventList->next(); |
RTList<Event>::Iterator itNextVCOEvent = itVCOEvent; |
790 |
|
++itNextVCOEvent; |
791 |
|
|
792 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
793 |
uint end = (pNextVCOEvent) ? pNextVCOEvent->FragmentPos() : Samples; |
uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples; |
794 |
|
|
795 |
pitch = RTMath::CentsToFreqRatio(((double) pVCOEvent->Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents |
pitch = RTMath::CentsToFreqRatio(((double) itVCOEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents |
796 |
|
|
797 |
// apply pitch value to the pitch parameter sequence |
// apply pitch value to the pitch parameter sequence |
798 |
for (uint i = pVCOEvent->FragmentPos(); i < end; i++) { |
for (uint i = itVCOEvent->FragmentPos(); i < end; i++) { |
799 |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch; |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch; |
800 |
} |
} |
801 |
|
|
802 |
pVCOEvent = pNextVCOEvent; |
itVCOEvent = itNextVCOEvent; |
803 |
|
} |
804 |
|
if (!pVCOEventList->isEmpty()) { |
805 |
|
this->PitchBend = pitch; |
806 |
|
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
807 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
808 |
} |
} |
|
if (pVCOEventList->last()) this->PitchBend = pitch; |
|
809 |
} |
} |
810 |
|
|
811 |
|
// process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !) |
812 |
|
{ |
813 |
|
RTList<Event>* pVCAEventList = pEngineChannel->pSynthesisEvents[Event::destination_vca]; |
814 |
|
RTList<Event>::Iterator itVCAEvent = pVCAEventList->first(); |
815 |
|
if (Delay) { // skip events that happened before this voice was triggered |
816 |
|
while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent; |
817 |
|
} |
818 |
|
float crossfadevolume; |
819 |
|
while (itVCAEvent) { |
820 |
|
RTList<Event>::Iterator itNextVCAEvent = itVCAEvent; |
821 |
|
++itNextVCAEvent; |
822 |
|
|
823 |
|
// calculate the influence length of this event (in sample points) |
824 |
|
uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples; |
825 |
|
|
826 |
|
crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value); |
827 |
|
|
828 |
|
#if CONFIG_PROCESS_MUTED_CHANNELS |
829 |
|
float effective_volume = crossfadevolume * this->Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume); |
830 |
|
#else |
831 |
|
float effective_volume = crossfadevolume * this->Volume * pEngineChannel->GlobalVolume; |
832 |
|
#endif |
833 |
|
|
834 |
|
// apply volume value to the volume parameter sequence |
835 |
|
for (uint i = itVCAEvent->FragmentPos(); i < end; i++) { |
836 |
|
pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume; |
837 |
|
} |
838 |
|
|
839 |
|
itVCAEvent = itNextVCAEvent; |
840 |
|
} |
841 |
|
if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume; |
842 |
|
} |
843 |
|
|
|
#if ENABLE_FILTER |
|
844 |
// process filter cutoff events |
// process filter cutoff events |
845 |
{ |
{ |
846 |
RTEList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
RTList<Event>* pCutoffEventList = pEngineChannel->pSynthesisEvents[Event::destination_vcfc]; |
847 |
Event* pCutoffEvent = pCutoffEventList->first(); |
RTList<Event>::Iterator itCutoffEvent = pCutoffEventList->first(); |
848 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
849 |
while (pCutoffEvent && pCutoffEvent->FragmentPos() <= Delay) pCutoffEvent = pCutoffEventList->next(); |
while (itCutoffEvent && itCutoffEvent->FragmentPos() <= Delay) ++itCutoffEvent; |
850 |
} |
} |
851 |
float cutoff; |
float cutoff; |
852 |
while (pCutoffEvent) { |
while (itCutoffEvent) { |
853 |
Event* pNextCutoffEvent = pCutoffEventList->next(); |
RTList<Event>::Iterator itNextCutoffEvent = itCutoffEvent; |
854 |
|
++itNextCutoffEvent; |
855 |
|
|
856 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
857 |
uint end = (pNextCutoffEvent) ? pNextCutoffEvent->FragmentPos() : Samples; |
uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples; |
858 |
|
|
859 |
cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN; |
int cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
860 |
|
if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
861 |
|
if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale; |
862 |
|
cutoff = CutoffBase * float(cvalue) * 0.00787402f; // (1 / 127) |
863 |
|
if (cutoff > 1.0) cutoff = 1.0; |
864 |
|
cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN - CONFIG_FILTER_CUTOFF_MIN; |
865 |
|
|
866 |
// apply cutoff frequency to the cutoff parameter sequence |
// apply cutoff frequency to the cutoff parameter sequence |
867 |
for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) { |
for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) { |
868 |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff; |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff; |
869 |
} |
} |
870 |
|
|
871 |
pCutoffEvent = pNextCutoffEvent; |
itCutoffEvent = itNextCutoffEvent; |
872 |
} |
} |
873 |
if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time |
if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time |
874 |
} |
} |
875 |
|
|
876 |
// process filter resonance events |
// process filter resonance events |
877 |
{ |
{ |
878 |
RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr]; |
RTList<Event>* pResonanceEventList = pEngineChannel->pSynthesisEvents[Event::destination_vcfr]; |
879 |
Event* pResonanceEvent = pResonanceEventList->first(); |
RTList<Event>::Iterator itResonanceEvent = pResonanceEventList->first(); |
880 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
881 |
while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next(); |
while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent; |
882 |
} |
} |
883 |
while (pResonanceEvent) { |
while (itResonanceEvent) { |
884 |
Event* pNextResonanceEvent = pResonanceEventList->next(); |
RTList<Event>::Iterator itNextResonanceEvent = itResonanceEvent; |
885 |
|
++itNextResonanceEvent; |
886 |
|
|
887 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
888 |
uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples; |
uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples; |
889 |
|
|
890 |
// convert absolute controller value to differential |
// convert absolute controller value to differential |
891 |
int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value; |
int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value; |
892 |
VCFResonanceCtrl.value = pResonanceEvent->Value; |
VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value; |
893 |
|
|
894 |
float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
895 |
|
|
896 |
// apply cutoff frequency to the cutoff parameter sequence |
// apply cutoff frequency to the cutoff parameter sequence |
897 |
for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) { |
for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) { |
898 |
pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta; |
pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta; |
899 |
} |
} |
900 |
|
|
901 |
pResonanceEvent = pNextResonanceEvent; |
itResonanceEvent = itNextResonanceEvent; |
902 |
} |
} |
903 |
if (pResonanceEventList->last()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Value * 0.00787f; // needed for initialization of parameter matrix next time |
if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time |
904 |
} |
} |
|
#endif // ENABLE_FILTER |
|
905 |
} |
} |
906 |
|
|
|
#if ENABLE_FILTER |
|
907 |
/** |
/** |
908 |
* Calculate all necessary, final biquad filter parameters. |
* Calculate all necessary, final biquad filter parameters. |
909 |
* |
* |
910 |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
911 |
*/ |
*/ |
912 |
void Voice::CalculateBiquadParameters(uint Samples) { |
void Voice::CalculateBiquadParameters(uint Samples) { |
|
if (!FilterLeft.Enabled) return; |
|
|
|
|
913 |
biquad_param_t bqbase; |
biquad_param_t bqbase; |
914 |
biquad_param_t bqmain; |
biquad_param_t bqmain; |
915 |
float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; |
float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; |
916 |
float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; |
float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; |
917 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, SampleRate); |
FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
918 |
|
FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
919 |
pEngine->pBasicFilterParameters[0] = bqbase; |
pEngine->pBasicFilterParameters[0] = bqbase; |
920 |
pEngine->pMainFilterParameters[0] = bqmain; |
pEngine->pMainFilterParameters[0] = bqmain; |
921 |
|
|
922 |
float* bq; |
float* bq; |
923 |
for (int i = 1; i < Samples; i++) { |
for (int i = 1; i < Samples; i++) { |
924 |
// recalculate biquad parameters if cutoff or resonance differ from previous sample point |
// recalculate biquad parameters if cutoff or resonance differ from previous sample point |
925 |
if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || |
if (!(i & FILTER_UPDATE_MASK)) { |
926 |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) { |
if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || |
927 |
prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) |
928 |
prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; |
{ |
929 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, SampleRate); |
prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; |
930 |
|
prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; |
931 |
|
FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
932 |
|
FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
933 |
|
} |
934 |
} |
} |
935 |
|
|
936 |
//same as 'pEngine->pBasicFilterParameters[i] = bqbase;' |
//same as 'pEngine->pBasicFilterParameters[i] = bqbase;' |
937 |
bq = (float*) &pEngine->pBasicFilterParameters[i]; |
bq = (float*) &pEngine->pBasicFilterParameters[i]; |
938 |
bq[0] = bqbase.a1; |
bq[0] = bqbase.b0; |
939 |
bq[1] = bqbase.a2; |
bq[1] = bqbase.b1; |
940 |
bq[2] = bqbase.b0; |
bq[2] = bqbase.b2; |
941 |
bq[3] = bqbase.b1; |
bq[3] = bqbase.a1; |
942 |
bq[4] = bqbase.b2; |
bq[4] = bqbase.a2; |
943 |
|
|
944 |
// same as 'pEngine->pMainFilterParameters[i] = bqmain;' |
// same as 'pEngine->pMainFilterParameters[i] = bqmain;' |
945 |
bq = (float*) &pEngine->pMainFilterParameters[i]; |
bq = (float*) &pEngine->pMainFilterParameters[i]; |
946 |
bq[0] = bqmain.a1; |
bq[0] = bqmain.b0; |
947 |
bq[1] = bqmain.a2; |
bq[1] = bqmain.b1; |
948 |
bq[2] = bqmain.b0; |
bq[2] = bqmain.b2; |
949 |
bq[3] = bqmain.b1; |
bq[3] = bqmain.a1; |
950 |
bq[4] = bqmain.b2; |
bq[4] = bqmain.a2; |
951 |
} |
} |
952 |
} |
} |
|
#endif // ENABLE_FILTER |
|
953 |
|
|
954 |
/** |
/** |
955 |
* Interpolates the input audio data (no loop). |
* Synthesizes the current audio fragment for this voice. |
956 |
* |
* |
957 |
* @param Samples - number of sample points to be rendered in this audio |
* @param Samples - number of sample points to be rendered in this audio |
958 |
* fragment cycle |
* fragment cycle |
959 |
* @param pSrc - pointer to input sample data |
* @param pSrc - pointer to input sample data |
960 |
* @param Skip - number of sample points to skip in output buffer |
* @param Skip - number of sample points to skip in output buffer |
961 |
*/ |
*/ |
962 |
void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) { |
void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) { |
963 |
int i = Skip; |
RunSynthesisFunction(SynthesisMode, *this, Samples, pSrc, Skip); |
|
|
|
|
// FIXME: assuming either mono or stereo |
|
|
if (this->pSample->Channels == 2) { // Stereo Sample |
|
|
while (i < Samples) { |
|
|
InterpolateOneStep_Stereo(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
|
} |
|
|
else { // Mono Sample |
|
|
while (i < Samples) { |
|
|
InterpolateOneStep_Mono(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
|
} |
|
964 |
} |
} |
965 |
|
|
966 |
/** |
/** |
967 |
* Interpolates the input audio data, this method honors looping. |
* Immediately kill the voice. This method should not be used to kill |
968 |
|
* a normal, active voice, because it doesn't take care of things like |
969 |
|
* fading down the volume level to avoid clicks and regular processing |
970 |
|
* until the kill event actually occured! |
971 |
* |
* |
972 |
* @param Samples - number of sample points to be rendered in this audio |
* @see Kill() |
|
* fragment cycle |
|
|
* @param pSrc - pointer to input sample data |
|
|
* @param Skip - number of sample points to skip in output buffer |
|
973 |
*/ |
*/ |
974 |
void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) { |
void Voice::KillImmediately() { |
975 |
int i = Skip; |
if (DiskVoice && DiskStreamRef.State != Stream::state_unused) { |
976 |
|
pDiskThread->OrderDeletionOfStream(&DiskStreamRef); |
|
// FIXME: assuming either mono or stereo |
|
|
if (pSample->Channels == 2) { // Stereo Sample |
|
|
if (pSample->LoopPlayCount) { |
|
|
// render loop (loop count limited) |
|
|
while (i < Samples && LoopCyclesLeft) { |
|
|
InterpolateOneStep_Stereo(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
LoopCyclesLeft--; |
|
|
} |
|
|
} |
|
|
// render on without loop |
|
|
while (i < Samples) { |
|
|
InterpolateOneStep_Stereo(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
|
} |
|
|
else { // render loop (endless loop) |
|
|
while (i < Samples) { |
|
|
InterpolateOneStep_Stereo(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize); |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
else { // Mono Sample |
|
|
if (pSample->LoopPlayCount) { |
|
|
// render loop (loop count limited) |
|
|
while (i < Samples && LoopCyclesLeft) { |
|
|
InterpolateOneStep_Mono(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
LoopCyclesLeft--; |
|
|
} |
|
|
} |
|
|
// render on without loop |
|
|
while (i < Samples) { |
|
|
InterpolateOneStep_Mono(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
|
} |
|
|
else { // render loop (endless loop) |
|
|
while (i < Samples) { |
|
|
InterpolateOneStep_Mono(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
} |
|
|
} |
|
|
} |
|
977 |
} |
} |
978 |
|
Reset(); |
979 |
} |
} |
980 |
|
|
981 |
/** |
/** |
982 |
* Immediately kill the voice. |
* Kill the voice in regular sense. Let the voice render audio until |
983 |
|
* the kill event actually occured and then fade down the volume level |
984 |
|
* very quickly and let the voice die finally. Unlike a normal release |
985 |
|
* of a voice, a kill process cannot be cancalled and is therefore |
986 |
|
* usually used for voice stealing and key group conflicts. |
987 |
|
* |
988 |
|
* @param itKillEvent - event which caused the voice to be killed |
989 |
*/ |
*/ |
990 |
void Voice::Kill() { |
void Voice::Kill(Pool<Event>::Iterator& itKillEvent) { |
991 |
if (DiskVoice && DiskStreamRef.State != Stream::state_unused) { |
#if CONFIG_DEVMODE |
992 |
pDiskThread->OrderDeletionOfStream(&DiskStreamRef); |
if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n")); |
993 |
} |
if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n")); |
994 |
Reset(); |
#endif // CONFIG_DEVMODE |
995 |
|
|
996 |
|
if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return; |
997 |
|
this->itKillEvent = itKillEvent; |
998 |
} |
} |
999 |
|
|
1000 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |