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airwindows/plugins/MacSignedAU/ConsoleX2Pre/ConsoleX2Pre.cpp
Christopher Johnson c357ed8bca PurestDualPan
2025-12-13 17:44:06 -05:00

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/*
* File: ConsoleX2Pre.cpp
*
* Version: 1.0
*
* Created: 10/7/25
*
* Copyright: Copyright © 2025 Airwindows, Airwindows uses the MIT license
*
* Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
* consideration of your agreement to the following terms, and your use, installation, modification
* or redistribution of this Apple software constitutes acceptance of these terms. If you do
* not agree with these terms, please do not use, install, modify or redistribute this Apple
* software.
*
* In consideration of your agreement to abide by the following terms, and subject to these terms,
* Apple grants you a personal, non-exclusive license, under Apple's copyrights in this
* original Apple software (the "Apple Software"), to use, reproduce, modify and redistribute the
* Apple Software, with or without modifications, in source and/or binary forms; provided that if you
* redistribute the Apple Software in its entirety and without modifications, you must retain this
* notice and the following text and disclaimers in all such redistributions of the Apple Software.
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* endorse or promote products derived from the Apple Software without specific prior written
* permission from Apple. Except as expressly stated in this notice, no other rights or
* licenses, express or implied, are granted by Apple herein, including but not limited to any
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*
* The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR
* IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE
* OR IN COMBINATION WITH YOUR PRODUCTS.
*
* IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/*=============================================================================
ConsoleX2Pre.cpp
=============================================================================*/
#include "ConsoleX2Pre.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
AUDIOCOMPONENT_ENTRY(AUBaseFactory, ConsoleX2Pre)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ConsoleX2Pre::ConsoleX2Pre
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ConsoleX2Pre::ConsoleX2Pre(AudioUnit component)
: AUEffectBase(component)
{
CreateElements();
Globals()->UseIndexedParameters(kNumberOfParameters);
SetParameter(kParam_TRM, kDefaultValue_ParamTRM );
SetParameter(kParam_MOR, kDefaultValue_ParamMOR );
SetParameter(kParam_HIG, kDefaultValue_ParamHIG );
SetParameter(kParam_HMG, kDefaultValue_ParamHMG );
SetParameter(kParam_LMG, kDefaultValue_ParamLMG );
SetParameter(kParam_BSG, kDefaultValue_ParamBSG );
SetParameter(kParam_HIF, kDefaultValue_ParamHIF );
SetParameter(kParam_HMF, kDefaultValue_ParamHMF );
SetParameter(kParam_LMF, kDefaultValue_ParamLMF );
SetParameter(kParam_BSF, kDefaultValue_ParamBSF );
SetParameter(kParam_THR, kDefaultValue_ParamTHR );
SetParameter(kParam_ATK, kDefaultValue_ParamATK );
SetParameter(kParam_RLS, kDefaultValue_ParamRLS );
SetParameter(kParam_GAT, kDefaultValue_ParamGAT );
SetParameter(kParam_LOP, kDefaultValue_ParamLOP );
SetParameter(kParam_HIP, kDefaultValue_ParamHIP );
SetParameter(kParam_FAD, kDefaultValue_ParamFAD );
#if AU_DEBUG_DISPATCHER
mDebugDispatcher = new AUDebugDispatcher (this);
#endif
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ConsoleX2Pre::GetParameterValueStrings
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult ConsoleX2Pre::GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings)
{
return kAudioUnitErr_InvalidProperty;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ConsoleX2Pre::GetParameterInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult ConsoleX2Pre::GetParameterInfo(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
AudioUnitParameterInfo &outParameterInfo )
{
ComponentResult result = noErr;
outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
| kAudioUnitParameterFlag_IsReadable;
if (inScope == kAudioUnitScope_Global) {
switch(inParameterID)
{
case kParam_TRM:
AUBase::FillInParameterName (outParameterInfo, kParameterTRMName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Indexed;
outParameterInfo.minValue = 0;
outParameterInfo.maxValue = 4;
outParameterInfo.defaultValue = kDefaultValue_ParamTRM;
break;
case kParam_MOR:
AUBase::FillInParameterName (outParameterInfo, kParameterMORName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamMOR;
break;
case kParam_HIG:
AUBase::FillInParameterName (outParameterInfo, kParameterHIGName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_CustomUnit;
outParameterInfo.unitName = kParameterHIGUnit;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamHIG;
break;
case kParam_HMG:
AUBase::FillInParameterName (outParameterInfo, kParameterHMGName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamHMG;
break;
case kParam_LMG:
AUBase::FillInParameterName (outParameterInfo, kParameterLMGName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamLMG;
break;
case kParam_BSG:
AUBase::FillInParameterName (outParameterInfo, kParameterBSGName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamBSG;
break;
case kParam_HIF:
AUBase::FillInParameterName (outParameterInfo, kParameterHIFName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_CustomUnit;
outParameterInfo.unitName = kParameterHIFUnit;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamHIF;
break;
case kParam_HMF:
AUBase::FillInParameterName (outParameterInfo, kParameterHMFName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamHMF;
break;
case kParam_LMF:
AUBase::FillInParameterName (outParameterInfo, kParameterLMFName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamLMF;
break;
case kParam_BSF:
AUBase::FillInParameterName (outParameterInfo, kParameterBSFName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamBSF;
break;
case kParam_THR:
AUBase::FillInParameterName (outParameterInfo, kParameterTHRName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_CustomUnit;
outParameterInfo.unitName = kParameterTHRUnit;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamTHR;
break;
case kParam_ATK:
AUBase::FillInParameterName (outParameterInfo, kParameterATKName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamATK;
break;
case kParam_RLS:
AUBase::FillInParameterName (outParameterInfo, kParameterRLSName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamRLS;
break;
case kParam_GAT:
AUBase::FillInParameterName (outParameterInfo, kParameterGATName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamGAT;
break;
case kParam_LOP:
AUBase::FillInParameterName (outParameterInfo, kParameterLOPName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_CustomUnit;
outParameterInfo.unitName = kParameterLOPUnit;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamLOP;
break;
case kParam_HIP:
AUBase::FillInParameterName (outParameterInfo, kParameterHIPName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamHIP;
break;
case kParam_FAD:
AUBase::FillInParameterName (outParameterInfo, kParameterFADName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamFAD;
break;
default:
result = kAudioUnitErr_InvalidParameter;
break;
}
} else {
result = kAudioUnitErr_InvalidParameter;
}
return result;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ConsoleX2Pre::GetPropertyInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult ConsoleX2Pre::GetPropertyInfo (AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
UInt32 & outDataSize,
Boolean & outWritable)
{
return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ConsoleX2Pre::GetProperty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult ConsoleX2Pre::GetProperty( AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData )
{
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
}
// ConsoleX2Pre::Initialize
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult ConsoleX2Pre::Initialize()
{
ComponentResult result = AUEffectBase::Initialize();
if (result == noErr)
Reset(kAudioUnitScope_Global, 0);
return result;
}
#pragma mark ____ConsoleX2PreEffectKernel
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ConsoleX2Pre::ConsoleX2PreKernel::Reset()
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void ConsoleX2Pre::ConsoleX2PreKernel::Reset()
{
for (int x = 0; x < biq_total; x++) {
highA[x] = 0.0;
highB[x] = 0.0;
highC[x] = 0.0;
midA[x] = 0.0;
midB[x] = 0.0;
midC[x] = 0.0;
lowA[x] = 0.0;
lowB[x] = 0.0;
lowC[x] = 0.0;
}
highIIR = 0.0;
midIIR = 0.0;
lowIIR = 0.0;
//SmoothEQ2
for (int x = 0; x < bez_total; x++) bezComp[x] = 0.0;
bezComp[bez_cycle] = 1.0; bezMax = 0.0; bezMin = 0.0;
bezGate = 2.0;
//Dynamics3
for(int count = 0; count < 22; count++) {
iirHPosition[count] = 0.0;
iirHAngle[count] = 0.0;
}
hBypass = false;
for(int count = 0; count < 14; count++) {
iirLPosition[count] = 0.0;
iirLAngle[count] = 0.0;
}
lBypass = false;
//Cabs2
for(int count = 0; count < dscBuf+2; count++) {
dBaL[count] = 0.0;
}
dBaPosL = 0.0;
dBaXL = 1;
//Discontapeity
for (int x = 0; x < 33; x++) {avg32L[x] = 0.0;}
for (int x = 0; x < 17; x++) {avg16L[x] = 0.0;}
for (int x = 0; x < 9; x++) {avg8L[x] = 0.0;}
for (int x = 0; x < 5; x++) {avg4L[x] = 0.0;}
for (int x = 0; x < 3; x++) {avg2L[x] = 0.0;}
avgPos = 0;
lastSlewL = 0.0;
lastSlewpleL = 0.0;
//preTapeHack
lFreqA = 1.0; lFreqB = 1.0;
hFreqA = 0.0; hFreqB = 0.0;
inTrimA = 0.5; inTrimB = 0.5;
fpd = 1.0; while (fpd < 16386) fpd = rand()*UINT32_MAX;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ConsoleX2Pre::ConsoleX2PreKernel::Process
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void ConsoleX2Pre::ConsoleX2PreKernel::Process( const Float32 *inSourceP,
Float32 *inDestP,
UInt32 inFramesToProcess,
UInt32 inNumChannels,
bool &ioSilence )
{
UInt32 nSampleFrames = inFramesToProcess;
const Float32 *sourceP = inSourceP;
Float32 *destP = inDestP;
double overallscale = 1.0;
overallscale /= 44100.0;
overallscale *= GetSampleRate();
int spacing = floor(overallscale*2.0);
if (spacing < 2) spacing = 2; if (spacing > 32) spacing = 32;
double moreTapeHack = (GetParameter( kParam_MOR )*2.0)+1.0;
bool tapehackOff = (GetParameter( kParam_MOR ) == 0.0);
switch ((int)GetParameter( kParam_TRM )){
case 0: moreTapeHack *= 0.5; break;
case 1: break;
case 2: moreTapeHack *= 2.0; break;
case 3: moreTapeHack *= 4.0; break;
case 4: moreTapeHack *= 8.0; break;
}
double moreDiscontinuity = fmax(pow(GetParameter( kParam_MOR )*0.42,3.0)*overallscale,0.00001);
//Discontapeity
double trebleGain = (GetParameter( kParam_HIG )-0.5)*2.0;
trebleGain = 1.0+(trebleGain*fabs(trebleGain)*fabs(trebleGain));
double highmidGain = (GetParameter( kParam_HMG )-0.5)*2.0;
highmidGain = 1.0+(highmidGain*fabs(highmidGain)*fabs(highmidGain));
double lowmidGain = (GetParameter( kParam_LMG )-0.5)*2.0;
lowmidGain = 1.0+(lowmidGain*fabs(lowmidGain)*fabs(lowmidGain));
double bassGain = (GetParameter( kParam_BSG )-0.5)*2.0;
bassGain = 1.0+(bassGain*fabs(bassGain)*fabs(bassGain));
double highCoef = 0.0;
double midCoef = 0.0;
double lowCoef = 0.0;
bool eqOff = (trebleGain == 1.0 && highmidGain == 1.0 && lowmidGain == 1.0 && bassGain == 1.0);
//we get to completely bypass EQ if we're truly not using it. The mechanics of it mean that
//it cancels out to bit-identical anyhow, but we get to skip the calculation
if (!eqOff) {
double trebleRef = GetParameter( kParam_HIF )-0.5;
double highmidRef = GetParameter( kParam_HMF )-0.5;
double lowmidRef = GetParameter( kParam_LMF )-0.5;
double bassRef = GetParameter( kParam_BSF )-0.5;
double highF = 0.75 + ((trebleRef+trebleRef+trebleRef+highmidRef)*0.125);
double bassF = 0.25 + ((lowmidRef+bassRef+bassRef+bassRef)*0.125);
double midF = (highF*0.5) + (bassF*0.5) + ((highmidRef+lowmidRef)*0.125);
double highQ = fmax(fmin(1.0+(highmidRef-trebleRef),4.0),0.125);
double midQ = fmax(fmin(1.0+(lowmidRef-highmidRef),4.0),0.125);
double lowQ = fmax(fmin(1.0+(bassRef-lowmidRef),4.0),0.125);
highA[biq_freq] = ((pow(highF,3)*20000.0)/GetSampleRate());
highC[biq_freq] = highB[biq_freq] = highA[biq_freq] = fmax(fmin(highA[biq_freq],0.4999),0.00025);
double highFreq = pow(highF,3)*20000.0;
double omega = 2.0*M_PI*(highFreq/GetSampleRate());
double biqK = 2.0-cos(omega);
highCoef = -sqrt((biqK*biqK)-1.0)+biqK;
highA[biq_reso] = 2.24697960 * highQ;
highB[biq_reso] = 0.80193774 * highQ;
highC[biq_reso] = 0.55495813 * highQ;
midA[biq_freq] = ((pow(midF,3)*20000.0)/GetSampleRate());
midC[biq_freq] = midB[biq_freq] = midA[biq_freq] = fmax(fmin(midA[biq_freq],0.4999),0.00025);
double midFreq = pow(midF,3)*20000.0;
omega = 2.0*M_PI*(midFreq/GetSampleRate());
biqK = 2.0-cos(omega);
midCoef = -sqrt((biqK*biqK)-1.0)+biqK;
midA[biq_reso] = 2.24697960 * midQ;
midB[biq_reso] = 0.80193774 * midQ;
midC[biq_reso] = 0.55495813 * midQ;
lowA[biq_freq] = ((pow(bassF,3)*20000.0)/GetSampleRate());
lowC[biq_freq] = lowB[biq_freq] = lowA[biq_freq] = fmax(fmin(lowA[biq_freq],0.4999),0.00025);
double lowFreq = pow(bassF,3)*20000.0;
omega = 2.0*M_PI*(lowFreq/GetSampleRate());
biqK = 2.0-cos(omega);
lowCoef = -sqrt((biqK*biqK)-1.0)+biqK;
lowA[biq_reso] = 2.24697960 * lowQ;
lowB[biq_reso] = 0.80193774 * lowQ;
lowC[biq_reso] = 0.55495813 * lowQ;
biqK = tan(M_PI * highA[biq_freq]);
double norm = 1.0 / (1.0 + biqK / highA[biq_reso] + biqK * biqK);
highA[biq_a0] = biqK * biqK * norm;
highA[biq_a1] = 2.0 * highA[biq_a0];
highA[biq_a2] = highA[biq_a0];
highA[biq_b1] = 2.0 * (biqK * biqK - 1.0) * norm;
highA[biq_b2] = (1.0 - biqK / highA[biq_reso] + biqK * biqK) * norm;
biqK = tan(M_PI * highB[biq_freq]);
norm = 1.0 / (1.0 + biqK / highB[biq_reso] + biqK * biqK);
highB[biq_a0] = biqK * biqK * norm;
highB[biq_a1] = 2.0 * highB[biq_a0];
highB[biq_a2] = highB[biq_a0];
highB[biq_b1] = 2.0 * (biqK * biqK - 1.0) * norm;
highB[biq_b2] = (1.0 - biqK / highB[biq_reso] + biqK * biqK) * norm;
biqK = tan(M_PI * highC[biq_freq]);
norm = 1.0 / (1.0 + biqK / highC[biq_reso] + biqK * biqK);
highC[biq_a0] = biqK * biqK * norm;
highC[biq_a1] = 2.0 * highC[biq_a0];
highC[biq_a2] = highC[biq_a0];
highC[biq_b1] = 2.0 * (biqK * biqK - 1.0) * norm;
highC[biq_b2] = (1.0 - biqK / highC[biq_reso] + biqK * biqK) * norm;
biqK = tan(M_PI * midA[biq_freq]);
norm = 1.0 / (1.0 + biqK / midA[biq_reso] + biqK * biqK);
midA[biq_a0] = biqK * biqK * norm;
midA[biq_a1] = 2.0 * midA[biq_a0];
midA[biq_a2] = midA[biq_a0];
midA[biq_b1] = 2.0 * (biqK * biqK - 1.0) * norm;
midA[biq_b2] = (1.0 - biqK / midA[biq_reso] + biqK * biqK) * norm;
biqK = tan(M_PI * midB[biq_freq]);
norm = 1.0 / (1.0 + biqK / midB[biq_reso] + biqK * biqK);
midB[biq_a0] = biqK * biqK * norm;
midB[biq_a1] = 2.0 * midB[biq_a0];
midB[biq_a2] = midB[biq_a0];
midB[biq_b1] = 2.0 * (biqK * biqK - 1.0) * norm;
midB[biq_b2] = (1.0 - biqK / midB[biq_reso] + biqK * biqK) * norm;
biqK = tan(M_PI * midC[biq_freq]);
norm = 1.0 / (1.0 + biqK / midC[biq_reso] + biqK * biqK);
midC[biq_a0] = biqK * biqK * norm;
midC[biq_a1] = 2.0 * midC[biq_a0];
midC[biq_a2] = midC[biq_a0];
midC[biq_b1] = 2.0 * (biqK * biqK - 1.0) * norm;
midC[biq_b2] = (1.0 - biqK / midC[biq_reso] + biqK * biqK) * norm;
biqK = tan(M_PI * lowA[biq_freq]);
norm = 1.0 / (1.0 + biqK / lowA[biq_reso] + biqK * biqK);
lowA[biq_a0] = biqK * biqK * norm;
lowA[biq_a1] = 2.0 * lowA[biq_a0];
lowA[biq_a2] = lowA[biq_a0];
lowA[biq_b1] = 2.0 * (biqK * biqK - 1.0) * norm;
lowA[biq_b2] = (1.0 - biqK / lowA[biq_reso] + biqK * biqK) * norm;
biqK = tan(M_PI * lowB[biq_freq]);
norm = 1.0 / (1.0 + biqK / lowB[biq_reso] + biqK * biqK);
lowB[biq_a0] = biqK * biqK * norm;
lowB[biq_a1] = 2.0 * lowB[biq_a0];
lowB[biq_a2] = lowB[biq_a0];
lowB[biq_b1] = 2.0 * (biqK * biqK - 1.0) * norm;
lowB[biq_b2] = (1.0 - biqK / lowB[biq_reso] + biqK * biqK) * norm;
biqK = tan(M_PI * lowC[biq_freq]);
norm = 1.0 / (1.0 + biqK / lowC[biq_reso] + biqK * biqK);
lowC[biq_a0] = biqK * biqK * norm;
lowC[biq_a1] = 2.0 * lowC[biq_a0];
lowC[biq_a2] = lowC[biq_a0];
lowC[biq_b1] = 2.0 * (biqK * biqK - 1.0) * norm;
lowC[biq_b2] = (1.0 - biqK / lowC[biq_reso] + biqK * biqK) * norm;
}
//SmoothEQ2
double bezThresh = pow(1.0-GetParameter( kParam_THR ), 4.0) * 8.0;
double bezRez = pow(1.0-GetParameter( kParam_ATK ), 4.0) / overallscale;
double sloRez = pow(1.0-GetParameter( kParam_RLS ), 4.0) / overallscale;
double gate = pow(GetParameter( kParam_GAT ),4.0);
bezRez = fmin(fmax(bezRez,0.0001),1.0);
sloRez = fmin(fmax(sloRez,0.0001),1.0);
//Dynamics3
lFreqA = lFreqB; lFreqB = pow(fmax(GetParameter( kParam_LOP ),0.002),overallscale); //the lowpass
hFreqA = hFreqB; hFreqB = pow(GetParameter( kParam_HIP ),overallscale+2.0); //the highpass
//Cabs2
inTrimA = inTrimB; inTrimB = GetParameter( kParam_FAD )*2.0;
//Console
while (nSampleFrames-- > 0) {
double inputSampleL = *sourceP;
if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpd * 1.18e-17;
inputSampleL *= moreTapeHack;
//trim control gets to work even when MORE is off
if (!tapehackOff) {
double darkSampleL = inputSampleL;
if (avgPos > 31) avgPos = 0;
if (spacing > 31) {
avg32L[avgPos] = darkSampleL;
darkSampleL = 0.0;
for (int x = 0; x < 32; x++) {darkSampleL += avg32L[x];}
darkSampleL /= 32.0;
} if (spacing > 15) {
avg16L[avgPos%16] = darkSampleL;
darkSampleL = 0.0;
for (int x = 0; x < 16; x++) {darkSampleL += avg16L[x];}
darkSampleL /= 16.0;
} if (spacing > 7) {
avg8L[avgPos%8] = darkSampleL;
darkSampleL = 0.0;
for (int x = 0; x < 8; x++) {darkSampleL += avg8L[x];}
darkSampleL /= 8.0;
} if (spacing > 3) {
avg4L[avgPos%4] = darkSampleL;
darkSampleL = 0.0;
for (int x = 0; x < 4; x++) {darkSampleL += avg4L[x];}
darkSampleL /= 4.0;
} if (spacing > 1) {
avg2L[avgPos%2] = darkSampleL;
darkSampleL = 0.0;
for (int x = 0; x < 2; x++) {darkSampleL += avg2L[x];}
darkSampleL /= 2.0;
} avgPos++;
lastSlewL += fabs(lastSlewpleL-inputSampleL); lastSlewpleL = inputSampleL;
double avgSlewL = fmin(lastSlewL,1.0);
lastSlewL = fmax(lastSlewL*0.78,2.39996322972865332223); //look up Golden Angle, it's cool
inputSampleL = (inputSampleL*(1.0-avgSlewL)) + (darkSampleL*avgSlewL);
//begin Discontinuity section
inputSampleL *= moreDiscontinuity;
dBaL[dBaXL] = inputSampleL; dBaPosL *= 0.5; dBaPosL += fabs((inputSampleL*((inputSampleL*0.25)-0.5))*0.5);
dBaPosL = fmin(dBaPosL,1.0);
int dBdly = floor(dBaPosL*dscBuf);
double dBi = (dBaPosL*dscBuf)-dBdly;
inputSampleL = dBaL[dBaXL-dBdly +((dBaXL-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
dBdly++; inputSampleL += dBaL[dBaXL-dBdly +((dBaXL-dBdly < 0)?dscBuf:0)]*dBi;
dBaXL++; if (dBaXL < 0 || dBaXL >= dscBuf) dBaXL = 0;
inputSampleL /= moreDiscontinuity;
//end Discontinuity section, begin TapeHack section
inputSampleL = fmax(fmin(inputSampleL,2.305929007734908),-2.305929007734908);
double addtwo = inputSampleL * inputSampleL;
double empower = inputSampleL * addtwo; // inputSampleL to the third power
inputSampleL -= (empower / 6.0);
empower *= addtwo; // to the fifth power
inputSampleL += (empower / 69.0);
empower *= addtwo; //seventh
inputSampleL -= (empower / 2530.08);
empower *= addtwo; //ninth
inputSampleL += (empower / 224985.6);
empower *= addtwo; //eleventh
inputSampleL -= (empower / 9979200.0f);
//this is a degenerate form of a Taylor Series to approximate sin()
//end TapeHack section
//Discontapeity
}
if (!eqOff) {
double trebleL = inputSampleL;
double outSample = (trebleL * highA[biq_a0]) + highA[biq_sL1];
highA[biq_sL1] = (trebleL * highA[biq_a1]) - (outSample * highA[biq_b1]) + highA[biq_sL2];
highA[biq_sL2] = (trebleL * highA[biq_a2]) - (outSample * highA[biq_b2]);
double highmidL = outSample; trebleL -= highmidL;
outSample = (highmidL * midA[biq_a0]) + midA[biq_sL1];
midA[biq_sL1] = (highmidL * midA[biq_a1]) - (outSample * midA[biq_b1]) + midA[biq_sL2];
midA[biq_sL2] = (highmidL * midA[biq_a2]) - (outSample * midA[biq_b2]);
double lowmidL = outSample; highmidL -= lowmidL;
outSample = (lowmidL * lowA[biq_a0]) + lowA[biq_sL1];
lowA[biq_sL1] = (lowmidL * lowA[biq_a1]) - (outSample * lowA[biq_b1]) + lowA[biq_sL2];
lowA[biq_sL2] = (lowmidL * lowA[biq_a2]) - (outSample * lowA[biq_b2]);
double bassL = outSample; lowmidL -= bassL;
trebleL = (bassL*bassGain) + (lowmidL*lowmidGain) + (highmidL*highmidGain) + (trebleL*trebleGain);
//first stage of three crossovers
outSample = (trebleL * highB[biq_a0]) + highB[biq_sL1];
highB[biq_sL1] = (trebleL * highB[biq_a1]) - (outSample * highB[biq_b1]) + highB[biq_sL2];
highB[biq_sL2] = (trebleL * highB[biq_a2]) - (outSample * highB[biq_b2]);
highmidL = outSample; trebleL -= highmidL;
outSample = (highmidL * midB[biq_a0]) + midB[biq_sL1];
midB[biq_sL1] = (highmidL * midB[biq_a1]) - (outSample * midB[biq_b1]) + midB[biq_sL2];
midB[biq_sL2] = (highmidL * midB[biq_a2]) - (outSample * midB[biq_b2]);
lowmidL = outSample; highmidL -= lowmidL;
outSample = (lowmidL * lowB[biq_a0]) + lowB[biq_sL1];
lowB[biq_sL1] = (lowmidL * lowB[biq_a1]) - (outSample * lowB[biq_b1]) + lowB[biq_sL2];
lowB[biq_sL2] = (lowmidL * lowB[biq_a2]) - (outSample * lowB[biq_b2]);
bassL = outSample; lowmidL -= bassL;
trebleL = (bassL*bassGain) + (lowmidL*lowmidGain) + (highmidL*highmidGain) + (trebleL*trebleGain);
//second stage of three crossovers
outSample = (trebleL * highC[biq_a0]) + highC[biq_sL1];
highC[biq_sL1] = (trebleL * highC[biq_a1]) - (outSample * highC[biq_b1]) + highC[biq_sL2];
highC[biq_sL2] = (trebleL * highC[biq_a2]) - (outSample * highC[biq_b2]);
highmidL = outSample; trebleL -= highmidL;
outSample = (highmidL * midC[biq_a0]) + midC[biq_sL1];
midC[biq_sL1] = (highmidL * midC[biq_a1]) - (outSample * midC[biq_b1]) + midC[biq_sL2];
midC[biq_sL2] = (highmidL * midC[biq_a2]) - (outSample * midC[biq_b2]);
lowmidL = outSample; highmidL -= lowmidL;
outSample = (lowmidL * lowC[biq_a0]) + lowC[biq_sL1];
lowC[biq_sL1] = (lowmidL * lowC[biq_a1]) - (outSample * lowC[biq_b1]) + lowC[biq_sL2];
lowC[biq_sL2] = (lowmidL * lowC[biq_a2]) - (outSample * lowC[biq_b2]);
bassL = outSample; lowmidL -= bassL;
trebleL = (bassL*bassGain) + (lowmidL*lowmidGain) + (highmidL*highmidGain) + (trebleL*trebleGain);
//third stage of three crossovers
highIIR = (highIIR*highCoef) + (trebleL*(1.0-highCoef));
highmidL = highIIR; trebleL -= highmidL;
midIIR = (midIIR*midCoef) + (highmidL*(1.0-midCoef));
lowmidL = midIIR; highmidL -= lowmidL;
lowIIR = (lowIIR*lowCoef) + (lowmidL*(1.0-lowCoef));
bassL = lowIIR; lowmidL -= bassL;
inputSampleL = (bassL*bassGain) + (lowmidL*lowmidGain) + (highmidL*highmidGain) + (trebleL*trebleGain);
//fourth stage of three crossovers is the exponential filters
}
//SmoothEQ2
if (bezThresh > 0.0) {
if (fabs(inputSampleL) > gate) bezGate = overallscale/fmin(bezRez,sloRez);
else bezGate = bezGate = fmax(0.000001, bezGate-fmin(bezRez,sloRez));
inputSampleL *= (bezThresh+1.0);
double ctrl = fabs(inputSampleL);
bezMax = fmax(bezMax,ctrl);
bezMin = fmax(bezMin-sloRez,ctrl);
bezComp[bez_cycle] += bezRez;
bezComp[bez_Ctrl] += (bezMin * bezRez);
if (bezComp[bez_cycle] > 1.0) {
if (bezGate < 1.0) bezComp[bez_Ctrl] /= bezGate;
bezComp[bez_cycle] -= 1.0;
bezComp[bez_C] = bezComp[bez_B];
bezComp[bez_B] = bezComp[bez_A];
bezComp[bez_A] = bezComp[bez_Ctrl];
bezComp[bez_Ctrl] = 0.0;
bezMax = 0.0;
}
double CB = (bezComp[bez_C]*(1.0-bezComp[bez_cycle]))+(bezComp[bez_B]*bezComp[bez_cycle]);
double BA = (bezComp[bez_B]*(1.0-bezComp[bez_cycle]))+(bezComp[bez_A]*bezComp[bez_cycle]);
double CBA = (bezComp[bez_B]+(CB*(1.0-bezComp[bez_cycle]))+(BA*bezComp[bez_cycle]))*0.5;
inputSampleL *= 1.0-(fmin(CBA*bezThresh,1.0));
} else bezComp[bez_Ctrl] = 0.0;
//Dynamics3
const double temp = (double)nSampleFrames/inFramesToProcess;
const double hFreq = (hFreqA*temp)+(hFreqB*(1.0-temp));
if (hFreq > 0.0) {
double lowSample = inputSampleL;
for(int count = 0; count < 21; count++) {
iirHAngle[count] = (iirHAngle[count]*(1.0-hFreq))+((lowSample-iirHPosition[count])*hFreq);
lowSample = ((iirHPosition[count]+(iirHAngle[count]*hFreq))*(1.0-hFreq))+(lowSample*hFreq);
iirHPosition[count] = ((iirHPosition[count]+(iirHAngle[count]*hFreq))*(1.0-hFreq))+(lowSample*hFreq);
inputSampleL -= (lowSample * (1.0/21.0));
} //the highpass
hBypass = false;
} else {
if (!hBypass) {
hBypass = true;
for(int count = 0; count < 22; count++) {
iirHPosition[count] = 0.0;
iirHAngle[count] = 0.0;
}
} //blank out highpass if jut switched off
}
const double lFreq = (lFreqA*temp)+(lFreqB*(1.0-temp));
if (lFreq < 1.0) {
for(int count = 0; count < 13; count++) {
iirLAngle[count] = (iirLAngle[count]*(1.0-lFreq))+((inputSampleL-iirLPosition[count])*lFreq);
inputSampleL = ((iirLPosition[count]+(iirLAngle[count]*lFreq))*(1.0-lFreq))+(inputSampleL*lFreq);
iirLPosition[count] = ((iirLPosition[count]+(iirLAngle[count]*lFreq))*(1.0-lFreq))+(inputSampleL*lFreq);
} //the lowpass
lBypass = false;
} else {
if (!lBypass) {
lBypass = true;
for(int count = 0; count < 14; count++) {
iirLPosition[count] = 0.0;
iirLAngle[count] = 0.0;
}
} //blank out lowpass if just switched off
}
//Cabs2
double gain = (inTrimA*temp)+(inTrimB*(1.0-temp));
if (gain > 1.0) gain *= gain;
if (gain < 1.0) gain = 1.0-pow(1.0-gain,2);
inputSampleL *= gain;
//applies smoothed fader gain
//begin 32 bit floating point dither
int expon; frexpf((float)inputSampleL, &expon);
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
//end 32 bit floating point dither
*destP = inputSampleL;
sourceP += inNumChannels; destP += inNumChannels;
}
}
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