airwindows/plugins/MacSignedAU/Srsly3/Srsly3.cpp
Christopher Johnson 3910224be8 Distance3
2024-05-19 14:58:54 -04:00

489 lines
20 KiB
C++
Executable file

/*
* File: Srsly3.cpp
*
* Version: 1.0
*
* Created: 5/7/24
*
* Copyright: Copyright © 2024 Airwindows, Airwindows uses the MIT license
*
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/*=============================================================================
Srsly3.cpp
=============================================================================*/
#include "Srsly3.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
AUDIOCOMPONENT_ENTRY(AUBaseFactory, Srsly3)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Srsly3::Srsly3
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Srsly3::Srsly3(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 );
SetParameter(kParam_Six, kDefaultValue_ParamSix );
#if AU_DEBUG_DISPATCHER
mDebugDispatcher = new AUDebugDispatcher (this);
#endif
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Srsly3::GetParameterValueStrings
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Srsly3::GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings)
{
return kAudioUnitErr_InvalidProperty;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Srsly3::GetParameterInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Srsly3::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;
case kParam_Six:
AUBase::FillInParameterName (outParameterInfo, kParameterSixName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamSix;
break;
default:
result = kAudioUnitErr_InvalidParameter;
break;
}
} else {
result = kAudioUnitErr_InvalidParameter;
}
return result;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Srsly3::GetPropertyInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Srsly3::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 Srsly3::SupportedNumChannels(const AUChannelInfo ** outInfo)
{
if (outInfo != NULL)
{
static AUChannelInfo info;
info.inChannels = 2;
info.outChannels = 2;
*outInfo = &info;
}
return 1;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Srsly3::GetProperty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Srsly3::GetProperty( AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData )
{
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
}
// Srsly3::Initialize
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Srsly3::Initialize()
{
ComponentResult result = AUEffectBase::Initialize();
if (result == noErr)
Reset(kAudioUnitScope_Global, 0);
return result;
}
#pragma mark ____Srsly3EffectKernel
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Srsly3::Srsly3Kernel::Reset()
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Srsly3::Reset(AudioUnitScope inScope, AudioUnitElement inElement)
{
for (int x = 0; x < 9; x++) {
biquadM2[x] = 0.0;
biquadM7[x] = 0.0;
biquadM10[x] = 0.0;
biquadL3[x] = 0.0;
biquadL7[x] = 0.0;
biquadR3[x] = 0.0;
biquadR7[x] = 0.0;
biquadS3[x] = 0.0;
biquadS5[x] = 0.0;
}
fpdL = 1.0; while (fpdL < 16386) fpdL = rand()*UINT32_MAX;
fpdR = 1.0; while (fpdR < 16386) fpdR = rand()*UINT32_MAX;
return noErr;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Srsly3::ProcessBufferLists
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
OSStatus Srsly3::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;
double sampleRate = GetSampleRate();
if (sampleRate < 22000.0) sampleRate = 22000.0; //keep biquads in range
biquadM2[0] = 2000.0 / sampleRate; //up
biquadM7[0] = 7000.0 / sampleRate; //down
biquadM10[0] = 10000.0 / sampleRate; //down
biquadL3[0] = 3000.0 / sampleRate; //up
biquadL7[0] = 7000.0 / sampleRate; //way up
biquadR3[0] = 3000.0 / sampleRate; //up
biquadR7[0] = 7000.0 / sampleRate; //way up
biquadS3[0] = 3000.0 / sampleRate; //up
biquadS5[0] = 5000.0 / sampleRate; //way down
double focusM = 15.0-(GetParameter( kParam_One )*10.0);
double focusS = 20.0-(GetParameter( kParam_Two )*15.0);
double Q = GetParameter( kParam_Four )+0.25; //add Q control: from half to double intensity
double gainM = GetParameter( kParam_One )*2.0;
double gainS = GetParameter( kParam_Two )*2.0;
if (gainS > 1.0) {
gainM /= gainS;
gainS *= gainS;
}
if (gainM > 1.0) gainM = 1.0;
biquadM2[1] = focusM*0.25*Q; //Q, mid 2K boost is much broader
biquadM7[1] = focusM*Q; //Q
biquadM10[1] = focusM*Q; //Q
biquadS3[1] = focusM*Q; //Q
biquadS5[1] = focusM*Q; //Q
biquadL3[1] = focusS*Q; //Q
biquadL7[1] = focusS*Q; //Q
biquadR3[1] = focusS*Q; //Q
biquadR7[1] = focusS*Q; //Q
double K = tan(M_PI * biquadM2[0]);
double norm = 1.0 / (1.0 + K / biquadM2[1] + K * K);
biquadM2[2] = K / biquadM2[1] * norm;
biquadM2[4] = -biquadM2[2];
biquadM2[5] = 2.0 * (K * K - 1.0) * norm;
biquadM2[6] = (1.0 - K / biquadM2[1] + K * K) * norm;
K = tan(M_PI * biquadM7[0]);
norm = 1.0 / (1.0 + K / biquadM7[1] + K * K);
biquadM7[2] = K / biquadM7[1] * norm;
biquadM7[4] = -biquadM7[2];
biquadM7[5] = 2.0 * (K * K - 1.0) * norm;
biquadM7[6] = (1.0 - K / biquadM7[1] + K * K) * norm;
K = tan(M_PI * biquadM10[0]);
norm = 1.0 / (1.0 + K / biquadM10[1] + K * K);
biquadM10[2] = K / biquadM10[1] * norm;
biquadM10[4] = -biquadM10[2];
biquadM10[5] = 2.0 * (K * K - 1.0) * norm;
biquadM10[6] = (1.0 - K / biquadM10[1] + K * K) * norm;
K = tan(M_PI * biquadL3[0]);
norm = 1.0 / (1.0 + K / biquadL3[1] + K * K);
biquadL3[2] = K / biquadL3[1] * norm;
biquadL3[4] = -biquadL3[2];
biquadL3[5] = 2.0 * (K * K - 1.0) * norm;
biquadL3[6] = (1.0 - K / biquadL3[1] + K * K) * norm;
K = tan(M_PI * biquadL7[0]);
norm = 1.0 / (1.0 + K / biquadL7[1] + K * K);
biquadL7[2] = K / biquadL7[1] * norm;
biquadL7[4] = -biquadL7[2];
biquadL7[5] = 2.0 * (K * K - 1.0) * norm;
biquadL7[6] = (1.0 - K / biquadL7[1] + K * K) * norm;
K = tan(M_PI * biquadR3[0]);
norm = 1.0 / (1.0 + K / biquadR3[1] + K * K);
biquadR3[2] = K / biquadR3[1] * norm;
biquadR3[4] = -biquadR3[2];
biquadR3[5] = 2.0 * (K * K - 1.0) * norm;
biquadR3[6] = (1.0 - K / biquadR3[1] + K * K) * norm;
K = tan(M_PI * biquadR7[0]);
norm = 1.0 / (1.0 + K / biquadR7[1] + K * K);
biquadR7[2] = K / biquadR7[1] * norm;
biquadR7[4] = -biquadR7[2];
biquadR7[5] = 2.0 * (K * K - 1.0) * norm;
biquadR7[6] = (1.0 - K / biquadR7[1] + K * K) * norm;
K = tan(M_PI * biquadS3[0]);
norm = 1.0 / (1.0 + K / biquadS3[1] + K * K);
biquadS3[2] = K / biquadS3[1] * norm;
biquadS3[4] = -biquadS3[2];
biquadS3[5] = 2.0 * (K * K - 1.0) * norm;
biquadS3[6] = (1.0 - K / biquadS3[1] + K * K) * norm;
K = tan(M_PI * biquadS5[0]);
norm = 1.0 / (1.0 + K / biquadS5[1] + K * K);
biquadS5[2] = K / biquadS5[1] * norm;
biquadS5[4] = -biquadS5[2];
biquadS5[5] = 2.0 * (K * K - 1.0) * norm;
biquadS5[6] = (1.0 - K / biquadS5[1] + K * K) * norm;
double depthM = pow(GetParameter( kParam_One ),2)*2.0; //proportion to mix in the filtered stuff
double depthS = pow(GetParameter( kParam_Two ),2)*2.0; //proportion to mix in the filtered stuff
double level = GetParameter( kParam_Three ); //output pad
double nonLin = pow(GetParameter( kParam_Five ),2); //nonlinearity of filters
double wet = GetParameter( kParam_Six ); //dry/wet
//biquad contains these values:
//[0] is frequency: 0.000001 to 0.499999 is near-zero to near-Nyquist
//[1] is resonance, 0.7071 is Butterworth. Also can't be zero
//[2] is a0 but you need distinct ones for additional biquad instances so it's here
//[3] is a1 but you need distinct ones for additional biquad instances so it's here
//[4] is a2 but you need distinct ones for additional biquad instances so it's here
//[5] is b1 but you need distinct ones for additional biquad instances so it's here
//[6] is b2 but you need distinct ones for additional biquad instances so it's here
//[7] is LEFT stored delayed sample (freq and res are stored so you can move them sample by sample)
//[8] is LEFT stored delayed sample (you have to include the coefficient making code if you do that)
while (nSampleFrames-- > 0) {
double inputSampleL = *inputL;
double inputSampleR = *inputR;
if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
double drySampleL = inputSampleL;
double drySampleR = inputSampleR;
double mid = inputSampleL + inputSampleR;
double rawmid = mid * 0.5; //we'll use this to isolate L&R a little
double side = inputSampleL - inputSampleR;
double boostside = side * depthS;
//assign mid and side.Between these sections, you can do mid/side processing
double dia0 = fabs(biquadM2[2]*(1.0+(mid*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
double tempSample = (mid * dia0) + biquadM2[7];
biquadM2[7] = (-tempSample * biquadM2[5]) + biquadM2[8];
biquadM2[8] = (mid * -dia0) - (tempSample * biquadM2[6]);
double M2Sample = tempSample; //like mono AU, 7 and 8 store L channel
dia0 = fabs(biquadM7[2]*(1.0+(mid*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
tempSample = (mid * dia0) + biquadM7[7];
biquadM7[7] = (-tempSample * biquadM7[5]) + biquadM7[8];
biquadM7[8] = (mid * -dia0) - (tempSample * biquadM7[6]);
double M7Sample = -tempSample*2.0; //like mono AU, 7 and 8 store L channel
dia0 = fabs(biquadM10[2]*(1.0+(mid*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
tempSample = (mid * dia0) + biquadM10[7];
biquadM10[7] = (-tempSample * biquadM10[5]) + biquadM10[8];
biquadM10[8] = (mid * -dia0) - (tempSample * biquadM10[6]);
double M10Sample = -tempSample*2.0; //like mono AU, 7 and 8 store L channel
//mid
dia0 = fabs(biquadS3[2]*(1.0+(side*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
tempSample = (side * dia0) + biquadS3[7];
biquadS3[7] = (-tempSample * biquadS3[5]) + biquadS3[8];
biquadS3[8] = (side * -dia0) - (tempSample * biquadS3[6]);
double S3Sample = tempSample*2.0; //like mono AU, 7 and 8 store L channel
dia0 = fabs(biquadS5[2]*(1.0+(side*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
tempSample = (side * dia0) + biquadS5[7];
biquadS5[7] = (-tempSample * biquadS5[5]) + biquadS5[8];
biquadS5[8] = (side * -dia0) - (tempSample * biquadS5[6]);
double S5Sample = -tempSample*5.0; //like mono AU, 7 and 8 store L channel
mid = (M2Sample + M7Sample + M10Sample)*depthM;
side = (S3Sample + S5Sample + boostside)*depthS;
double msOutSampleL = (mid+side)/2.0;
double msOutSampleR = (mid-side)/2.0;
//unassign mid and side
double isoSampleL = inputSampleL-rawmid;
double isoSampleR = inputSampleR-rawmid; //trying to isolate L and R a little
dia0 = fabs(biquadL3[2]*(1.0+(isoSampleL*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
tempSample = (isoSampleL * dia0) + biquadL3[7];
biquadL3[7] = (-tempSample * biquadL3[5]) + biquadL3[8];
biquadL3[8] = (isoSampleL * -dia0) - (tempSample * biquadL3[6]);
double L3Sample = tempSample; //like mono AU, 7 and 8 store L channel
dia0 = fabs(biquadR3[2]*(1.0+(isoSampleR*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
tempSample = (isoSampleR * dia0) + biquadR3[7];
biquadR3[7] = (-tempSample * biquadR3[5]) + biquadR3[8];
biquadR3[8] = (isoSampleR * -dia0) - (tempSample * biquadR3[6]);
double R3Sample = tempSample; //note: 9 and 10 store the R channel
dia0 = fabs(biquadL7[2]*(1.0+(isoSampleL*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
tempSample = (isoSampleL * dia0) + biquadL7[7];
biquadL7[7] = (-tempSample * biquadL7[5]) + biquadL7[8];
biquadL7[8] = (isoSampleL * -dia0) - (tempSample * biquadL7[6]);
double L7Sample = tempSample*3.0; //like mono AU, 7 and 8 store L channel
dia0 = fabs(biquadR7[2]*(1.0+(isoSampleR*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
tempSample = (isoSampleR * dia0) + biquadR7[7];
biquadR7[7] = (-tempSample * biquadR7[5]) + biquadR7[8];
biquadR7[8] = (isoSampleR * -dia0) - (tempSample * biquadR7[6]);
double R7Sample = tempSample*3.0; //note: 9 and 10 store the R channel
double processingL = msOutSampleL + ((L3Sample + L7Sample)*depthS);
double processingR = msOutSampleR + ((R3Sample + R7Sample)*depthS);
//done with making filters, now we apply them
mid = inputSampleL + inputSampleR;
side = inputSampleL - inputSampleR;
//re-assign mid and side.Between these sections, you can do mid/side processing
mid *= gainM;
side *= gainS;
inputSampleL = ((mid+side)/2.0)+processingL;
inputSampleR = ((mid-side)/2.0)+processingR;
//unassign mid and side
if (level < 1.0) {
inputSampleL *= level;
inputSampleR *= level;
}
if (wet != 1.0) {
inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet));
inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet));
}
//Dry/Wet control, defaults to the last slider
//begin 32 bit stereo floating point dither
int expon; frexpf((float)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
frexpf((float)inputSampleR, &expon);
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
//end 32 bit stereo floating point dither
*outputL = inputSampleL;
*outputR = inputSampleR;
//direct stereo out
inputL += 1;
inputR += 1;
outputL += 1;
outputR += 1;
}
return noErr;
}