/*
* File: Gatelinked.cpp
*
* Version: 1.0
*
* Created: 11/29/18
*
* Copyright: Copyright � 2018 Airwindows, All Rights Reserved
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/*=============================================================================
Gatelinked.cpp
=============================================================================*/
#include "Gatelinked.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
COMPONENT_ENTRY(Gatelinked)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Gatelinked::Gatelinked
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Gatelinked::Gatelinked(AudioUnit component)
: AUEffectBase(component)
{
CreateElements();
Globals()->UseIndexedParameters(kNumberOfParameters);
SetParameter(kParam_One, kDefaultValue_ParamOne );
SetParameter(kParam_Two, kDefaultValue_ParamTwo );
SetParameter(kParam_Three, kDefaultValue_ParamThree );
SetParameter(kParam_Four, kDefaultValue_ParamFour );
SetParameter(kParam_Five, kDefaultValue_ParamFive );
#if AU_DEBUG_DISPATCHER
mDebugDispatcher = new AUDebugDispatcher (this);
#endif
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Gatelinked::GetParameterValueStrings
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Gatelinked::GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings)
{
return kAudioUnitErr_InvalidProperty;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Gatelinked::GetParameterInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Gatelinked::GetParameterInfo(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
AudioUnitParameterInfo &outParameterInfo )
{
ComponentResult result = noErr;
outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
| kAudioUnitParameterFlag_IsReadable;
if (inScope == kAudioUnitScope_Global) {
switch(inParameterID)
{
case kParam_One:
AUBase::FillInParameterName (outParameterInfo, kParameterOneName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamOne;
break;
case kParam_Two:
AUBase::FillInParameterName (outParameterInfo, kParameterTwoName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamTwo;
break;
case kParam_Three:
AUBase::FillInParameterName (outParameterInfo, kParameterThreeName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamThree;
break;
case kParam_Four:
AUBase::FillInParameterName (outParameterInfo, kParameterFourName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamFour;
break;
case kParam_Five:
AUBase::FillInParameterName (outParameterInfo, kParameterFiveName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamFive;
break;
default:
result = kAudioUnitErr_InvalidParameter;
break;
}
} else {
result = kAudioUnitErr_InvalidParameter;
}
return result;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Gatelinked::GetPropertyInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Gatelinked::GetPropertyInfo (AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
UInt32 & outDataSize,
Boolean & outWritable)
{
return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// state that plugin supports only stereo-in/stereo-out processing
UInt32 Gatelinked::SupportedNumChannels(const AUChannelInfo ** outInfo)
{
if (outInfo != NULL)
{
static AUChannelInfo info;
info.inChannels = 2;
info.outChannels = 2;
*outInfo = &info;
}
return 1;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Gatelinked::GetProperty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Gatelinked::GetProperty( AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData )
{
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
}
// Gatelinked::Initialize
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Gatelinked::Initialize()
{
ComponentResult result = AUEffectBase::Initialize();
if (result == noErr)
Reset(kAudioUnitScope_Global, 0);
return result;
}
#pragma mark ____GatelinkedEffectKernel
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Gatelinked::GatelinkedKernel::Reset()
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Gatelinked::Reset(AudioUnitScope inScope, AudioUnitElement inElement)
{
iirLowpassAL = 0.0;
iirLowpassBL = 0.0;
iirHighpassAL = 0.0;
iirHighpassBL = 0.0;
iirLowpassAR = 0.0;
iirLowpassBR = 0.0;
iirHighpassAR = 0.0;
iirHighpassBR = 0.0;
treblefreq = 1.0;
bassfreq = 0.0;
flip = false;
fpNShapeL = 0.0;
fpNShapeR = 0.0;
return noErr;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Gatelinked::ProcessBufferLists
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
OSStatus Gatelinked::ProcessBufferLists(AudioUnitRenderActionFlags & ioActionFlags,
const AudioBufferList & inBuffer,
AudioBufferList & outBuffer,
UInt32 inFramesToProcess)
{
Float32 * inputL = (Float32*)(inBuffer.mBuffers[0].mData);
Float32 * inputR = (Float32*)(inBuffer.mBuffers[1].mData);
Float32 * outputL = (Float32*)(outBuffer.mBuffers[0].mData);
Float32 * outputR = (Float32*)(outBuffer.mBuffers[1].mData);
UInt32 nSampleFrames = inFramesToProcess;
long double overallscale = 1.0;
overallscale /= 44100.0;
overallscale *= GetSampleRate();
//speed settings around release
Float64 threshold = pow(GetParameter( kParam_One ),2);
//gain settings around threshold
Float64 trebledecay = pow(1.0-GetParameter( kParam_Two ),2)/4196.0;
Float64 bassdecay = pow(1.0-GetParameter( kParam_Three ),2)/8192.0;
Float64 slowAttack = (pow(GetParameter( kParam_Four ),3)*3)+0.003;
Float64 wet = GetParameter( kParam_Five );
slowAttack /= overallscale;
trebledecay /= overallscale;
bassdecay /= overallscale;
trebledecay += 1.0;
bassdecay += 1.0;
Float64 attackSpeed;
Float64 highestSample;
while (nSampleFrames-- > 0) {
long double inputSampleL = *inputL;
long double inputSampleR = *inputR;
static int noisesourceL = 0;
static int noisesourceR = 850010;
int residue;
double applyresidue;
noisesourceL = noisesourceL % 1700021; noisesourceL++;
residue = noisesourceL * noisesourceL;
residue = residue % 170003; residue *= residue;
residue = residue % 17011; residue *= residue;
residue = residue % 1709; residue *= residue;
residue = residue % 173; residue *= residue;
residue = residue % 17;
applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSampleL += applyresidue;
if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) {
inputSampleL -= applyresidue;
}
noisesourceR = noisesourceR % 1700021; noisesourceR++;
residue = noisesourceR * noisesourceR;
residue = residue % 170003; residue *= residue;
residue = residue % 17011; residue *= residue;
residue = residue % 1709; residue *= residue;
residue = residue % 173; residue *= residue;
residue = residue % 17;
applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSampleR += applyresidue;
if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) {
inputSampleR -= applyresidue;
}
//for live air, we always apply the dither noise. Then, if our result is
//effectively digital black, we'll subtract it again. We want a 'air' hiss
double drySampleL = inputSampleL;
double drySampleR = inputSampleR;
if (fabs(inputSampleL) > fabs(inputSampleR)) {
attackSpeed = slowAttack - (fabs(inputSampleL)*slowAttack*0.5);
highestSample = fabs(inputSampleL);
} else {
attackSpeed = slowAttack - (fabs(inputSampleR)*slowAttack*0.5); //we're triggering off the highest amplitude
highestSample = fabs(inputSampleR); //and making highestSample the abs() of that amplitude
}
if (attackSpeed < 0.0) attackSpeed = 0.0;
//softening onset click depending on how hard we're getting it
if (flip)
{
if (highestSample > threshold)
{
treblefreq += attackSpeed;
if (treblefreq > 2.0) treblefreq = 2.0;
bassfreq -= attackSpeed;
bassfreq -= attackSpeed;
if (bassfreq < 0.0) bassfreq = 0.0;
iirLowpassAL = iirLowpassBL = inputSampleL;
iirHighpassAL = iirHighpassBL = 0.0;
iirLowpassAR = iirLowpassBR = inputSampleR;
iirHighpassAR = iirHighpassBR = 0.0;
}
else
{
treblefreq -= bassfreq;
treblefreq /= trebledecay;
treblefreq += bassfreq;
bassfreq -= treblefreq;
bassfreq /= bassdecay;
bassfreq += treblefreq;
}
if (treblefreq >= 1.0) {
iirLowpassAL = inputSampleL;
iirLowpassAR = inputSampleR;
} else {
iirLowpassAL = (iirLowpassAL * (1.0 - treblefreq)) + (inputSampleL * treblefreq);
iirLowpassAR = (iirLowpassAR * (1.0 - treblefreq)) + (inputSampleR * treblefreq);
}
if (bassfreq > 1.0) bassfreq = 1.0;
if (bassfreq > 0.0) {
iirHighpassAL = (iirHighpassAL * (1.0 - bassfreq)) + (inputSampleL * bassfreq);
iirHighpassAR = (iirHighpassAR * (1.0 - bassfreq)) + (inputSampleR * bassfreq);
} else {
iirHighpassAL = 0.0;
iirHighpassAR = 0.0;
}
if (treblefreq > bassfreq) {
inputSampleL = (iirLowpassAL - iirHighpassAL);
inputSampleR = (iirLowpassAR - iirHighpassAR);
} else {
inputSampleL = 0.0;
inputSampleR = 0.0;
}
}
else
{
if (highestSample > threshold)
{
treblefreq += attackSpeed;
if (treblefreq > 2.0) treblefreq = 2.0;
bassfreq -= attackSpeed;
bassfreq -= attackSpeed;
if (bassfreq < 0.0) bassfreq = 0.0;
iirLowpassAL = iirLowpassBL = inputSampleL;
iirHighpassAL = iirHighpassBL = 0.0;
iirLowpassAR = iirLowpassBR = inputSampleR;
iirHighpassAR = iirHighpassBR = 0.0;
}
else
{
treblefreq -= bassfreq;
treblefreq /= trebledecay;
treblefreq += bassfreq;
bassfreq -= treblefreq;
bassfreq /= bassdecay;
bassfreq += treblefreq;
}
if (treblefreq >= 1.0) {
iirLowpassBL = inputSampleL;
iirLowpassBR = inputSampleR;
} else {
iirLowpassBL = (iirLowpassBL * (1.0 - treblefreq)) + (inputSampleL * treblefreq);
iirLowpassBR = (iirLowpassBR * (1.0 - treblefreq)) + (inputSampleR * treblefreq);
}
if (bassfreq > 1.0) bassfreq = 1.0;
if (bassfreq > 0.0) {
iirHighpassBL = (iirHighpassBL * (1.0 - bassfreq)) + (inputSampleL * bassfreq);
iirHighpassBR = (iirHighpassBR * (1.0 - bassfreq)) + (inputSampleR * bassfreq);
} else {
iirHighpassBL = 0.0;
iirHighpassBR = 0.0;
}
if (treblefreq > bassfreq) {
inputSampleL = (iirLowpassBL - iirHighpassBL);
inputSampleR = (iirLowpassBR - iirHighpassBR);
} else {
inputSampleL = 0.0;
inputSampleR = 0.0;
}
}
//done full gated envelope filtered effect
inputSampleL = ((1-wet)*drySampleL)+(wet*inputSampleL);
inputSampleR = ((1-wet)*drySampleR)+(wet*inputSampleR);
//we're going to set up a dry/wet control instead of a min. threshold
flip = !flip;
//stereo 32 bit dither, made small and tidy.
int expon; frexpf((Float32)inputSampleL, &expon);
long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
inputSampleL += (dither-fpNShapeL); fpNShapeL = dither;
frexpf((Float32)inputSampleR, &expon);
dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
inputSampleR += (dither-fpNShapeR); fpNShapeR = dither;
//end 32 bit dither
*outputL = inputSampleL;
*outputR = inputSampleR;
//direct stereo out
inputL += 1;
inputR += 1;
outputL += 1;
outputR += 1;
}
return noErr;
}