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airwindows/plugins/MacAU/Cans/Cans.cpp
Christopher Johnson b77a11bab5 ToTape7
2024-08-18 16:05:41 -04:00

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/*
* File: Cans.cpp
*
* Version: 1.0
*
* Created: 8/1/24
*
* Copyright: Copyright © 2024 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.
* Neither the name, trademarks, service marks or logos of Apple Computer, Inc. may be used to
* 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
* patent rights that may be infringed by your derivative works or by other works in which the
* Apple Software may be incorporated.
*
* 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
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE,
* REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER
* UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN
* IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/*=============================================================================
Cans.cpp
=============================================================================*/
#include "Cans.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
COMPONENT_ENTRY(Cans)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Cans::Cans
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Cans::Cans(AudioUnit component)
: AUEffectBase(component)
{
CreateElements();
Globals()->UseIndexedParameters(kNumberOfParameters);
SetParameter(kParam_A, kDefaultValue_ParamA );
SetParameter(kParam_B, kDefaultValue_ParamB );
SetParameter(kParam_C, kDefaultValue_ParamC );
SetParameter(kParam_D, kDefaultValue_ParamD );
SetParameter(kParam_E, kDefaultValue_ParamE );
#if AU_DEBUG_DISPATCHER
mDebugDispatcher = new AUDebugDispatcher (this);
#endif
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Cans::GetParameterValueStrings
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Cans::GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings)
{
if ((inScope == kAudioUnitScope_Global) && (inParameterID == kParam_A)) //ID must be actual name of parameter identifier, not number
{
if (outStrings == NULL) return noErr;
CFStringRef strings [] =
{
kMenuItem_A,
kMenuItem_B,
kMenuItem_C,
kMenuItem_D,
kMenuItem_E,
};
*outStrings = CFArrayCreate (
NULL,
(const void **) strings,
(sizeof (strings) / sizeof (strings [0])),
NULL
);
return noErr;
}
return kAudioUnitErr_InvalidProperty;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Cans::GetParameterInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Cans::GetParameterInfo(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
AudioUnitParameterInfo &outParameterInfo )
{
ComponentResult result = noErr;
outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
| kAudioUnitParameterFlag_IsReadable;
if (inScope == kAudioUnitScope_Global) {
switch(inParameterID)
{
case kParam_A:
AUBase::FillInParameterName (outParameterInfo, kParameterAName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Indexed;
outParameterInfo.minValue = kA;
outParameterInfo.maxValue = kE;
outParameterInfo.defaultValue = kDefaultValue_ParamA;
break;
case kParam_B:
AUBase::FillInParameterName (outParameterInfo, kParameterBName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamB;
break;
case kParam_C:
AUBase::FillInParameterName (outParameterInfo, kParameterCName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamC;
break;
case kParam_D:
AUBase::FillInParameterName (outParameterInfo, kParameterDName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamD;
break;
case kParam_E:
AUBase::FillInParameterName (outParameterInfo, kParameterEName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamE;
break;
default:
result = kAudioUnitErr_InvalidParameter;
break;
}
} else {
result = kAudioUnitErr_InvalidParameter;
}
return result;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Cans::GetPropertyInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Cans::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 Cans::SupportedNumChannels(const AUChannelInfo ** outInfo)
{
if (outInfo != NULL)
{
static AUChannelInfo info;
info.inChannels = 2;
info.outChannels = 2;
*outInfo = &info;
}
return 1;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Cans::GetProperty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Cans::GetProperty( AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData )
{
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
}
// Cans::Initialize
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Cans::Initialize()
{
ComponentResult result = AUEffectBase::Initialize();
if (result == noErr)
Reset(kAudioUnitScope_Global, 0);
return result;
}
#pragma mark ____CansEffectKernel
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Cans::CansKernel::Reset()
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Cans::Reset(AudioUnitScope inScope, AudioUnitElement inElement)
{
for(int count = 0; count < kshortA+2; count++) {aAL[count] = 0.0; aAR[count] = 0.0;}
for(int count = 0; count < kshortB+2; count++) {aBL[count] = 0.0; aBR[count] = 0.0;}
for(int count = 0; count < kshortC+2; count++) {aCL[count] = 0.0; aCR[count] = 0.0;}
for(int count = 0; count < kshortD+2; count++) {aDL[count] = 0.0; aDR[count] = 0.0;}
for(int count = 0; count < kshortE+2; count++) {aEL[count] = 0.0; aER[count] = 0.0;}
for(int count = 0; count < kshortF+2; count++) {aFL[count] = 0.0; aFR[count] = 0.0;}
for(int count = 0; count < kshortG+2; count++) {aGL[count] = 0.0; aGR[count] = 0.0;}
for(int count = 0; count < kshortH+2; count++) {aHL[count] = 0.0; aHR[count] = 0.0;}
for(int count = 0; count < kshortI+2; count++) {aIL[count] = 0.0; aIR[count] = 0.0;}
for(int count = 0; count < kshortJ+2; count++) {aJL[count] = 0.0; aJR[count] = 0.0;}
for(int count = 0; count < kshortK+2; count++) {aKL[count] = 0.0; aKR[count] = 0.0;}
for(int count = 0; count < kshortL+2; count++) {aLL[count] = 0.0; aLR[count] = 0.0;}
for(int count = 0; count < kshortM+2; count++) {aML[count] = 0.0; aMR[count] = 0.0;}
for(int count = 0; count < kshortN+2; count++) {aNL[count] = 0.0; aNR[count] = 0.0;}
for(int count = 0; count < kshortO+2; count++) {aOL[count] = 0.0; aOR[count] = 0.0;}
for(int count = 0; count < kshortP+2; count++) {aPL[count] = 0.0; aPR[count] = 0.0;}
feedbackAL = 0.0;
feedbackBL = 0.0;
feedbackCL = 0.0;
feedbackDL = 0.0;
feedbackAR = 0.0;
feedbackBR = 0.0;
feedbackCR = 0.0;
feedbackDR = 0.0;
iirInL = 0.0;
iirFAL = 0.0;
iirFBL = 0.0;
iirFCL = 0.0;
iirFDL = 0.0;
iirOutL = 0.0;
iirInR = 0.0;
iirFAR = 0.0;
iirFBR = 0.0;
iirFCR = 0.0;
iirFDR = 0.0;
iirOutR = 0.0;
countA = 1;
countB = 1;
countC = 1;
countD = 1;
countE = 1;
countF = 1;
countG = 1;
countH = 1;
countI = 1;
countJ = 1;
countK = 1;
countL = 1;
countM = 1;
countN = 1;
countO = 1;
countP = 1;
shortA = 23;
shortB = 357;
shortC = 305;
shortD = 186;
shortE = 104;
shortF = 255;
shortG = 163;
shortH = 147;
shortI = 56;
shortJ = 480;
shortK = 317;
shortL = 107;
shortM = 11;
shortN = 704;
shortO = 26;
shortP = 543;
prevclearcoat = -1;
for (int x = 0; x < bez_total; x++) bez[x] = 0.0;
bez[bez_cycle] = 1.0;
fpdL = 1.0; while (fpdL < 16386) fpdL = rand()*UINT32_MAX;
fpdR = 1.0; while (fpdR < 16386) fpdR = rand()*UINT32_MAX;
return noErr;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Cans::ProcessBufferLists
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
OSStatus Cans::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 overallscale = 1.0;
overallscale /= 44100.0;
overallscale *= GetSampleRate();
int clearcoat = GetParameter( kParam_A );
if (clearcoat != prevclearcoat) {
for(int count = 0; count < kshortA+2; count++) {aAL[count] = 0.0; aAR[count] = 0.0;}
for(int count = 0; count < kshortB+2; count++) {aBL[count] = 0.0; aBR[count] = 0.0;}
for(int count = 0; count < kshortC+2; count++) {aCL[count] = 0.0; aCR[count] = 0.0;}
for(int count = 0; count < kshortD+2; count++) {aDL[count] = 0.0; aDR[count] = 0.0;}
for(int count = 0; count < kshortE+2; count++) {aEL[count] = 0.0; aER[count] = 0.0;}
for(int count = 0; count < kshortF+2; count++) {aFL[count] = 0.0; aFR[count] = 0.0;}
for(int count = 0; count < kshortG+2; count++) {aGL[count] = 0.0; aGR[count] = 0.0;}
for(int count = 0; count < kshortH+2; count++) {aHL[count] = 0.0; aHR[count] = 0.0;}
for(int count = 0; count < kshortI+2; count++) {aIL[count] = 0.0; aIR[count] = 0.0;}
for(int count = 0; count < kshortJ+2; count++) {aJL[count] = 0.0; aJR[count] = 0.0;}
for(int count = 0; count < kshortK+2; count++) {aKL[count] = 0.0; aKR[count] = 0.0;}
for(int count = 0; count < kshortL+2; count++) {aLL[count] = 0.0; aLR[count] = 0.0;}
for(int count = 0; count < kshortM+2; count++) {aML[count] = 0.0; aMR[count] = 0.0;}
for(int count = 0; count < kshortN+2; count++) {aNL[count] = 0.0; aNR[count] = 0.0;}
for(int count = 0; count < kshortO+2; count++) {aOL[count] = 0.0; aOR[count] = 0.0;}
for(int count = 0; count < kshortP+2; count++) {aPL[count] = 0.0; aPR[count] = 0.0;}
countA = 1;
countB = 1;
countC = 1;
countD = 1;
countE = 1;
countF = 1;
countG = 1;
countH = 1;
countI = 1;
countJ = 1;
countK = 1;
countL = 1;
countM = 1;
countN = 1;
countO = 1;
countP = 1;
switch (clearcoat)
{
case 0:
shortA = 34; shortB = 193; shortC = 255; shortD = 150; shortE = 24; shortF = 204; shortG = 85; shortH = 295; shortI = 40; shortJ = 371; shortK = 370; shortL = 202; shortM = 11; shortN = 431; shortO = 23; shortP = 323; //2 to 30 ms, 32 seat room
break; //32b-U rated incompressible if filesize larger than 20,150,000 bytes
case 1:
shortA = 32; shortB = 298; shortC = 402; shortD = 161; shortE = 165; shortF = 149; shortG = 43; shortH = 313; shortI = 83; shortJ = 397; shortK = 316; shortL = 315; shortM = 11; shortN = 685; shortO = 16; shortP = 486; //3 to 40 ms, 59 seat room
break; //59b-U rated incompressible if filesize larger than 21,035,831 bytes
case 2:
shortA = 23; shortB = 357; shortC = 305; shortD = 186; shortE = 104; shortF = 255; shortG = 163; shortH = 147; shortI = 56; shortJ = 480; shortK = 317; shortL = 107; shortM = 11; shortN = 704; shortO = 26; shortP = 543; //4 to 40 ms, 60 seat room
break; //60b-U rated incompressible if filesize larger than 21,035,831 bytes
case 3:
shortA = 192; shortB = 463; shortC = 420; shortD = 34; shortE = 161; shortF = 426; shortG = 160; shortH = 474; shortI = 21; shortJ = 343; shortK = 296; shortL = 294; shortM = 11; shortN = 987; shortO = 64; shortP = 482; //5 to 51 ms, 94 seat room
break; //94b-U rated incompressible if filesize larger than 21,700,000 bytes
case 4:
default:
shortA = 173; shortB = 587; shortC = 550; shortD = 324; shortE = 165; shortF = 324; shortG = 312; shortH = 574; shortI = 100; shortJ = 793; shortK = 788; shortL = 385; shortM = 11; shortN = 1008; shortO = 46; shortP = 380; //10 to 67 ms, 177 seat club
break; //177-U rated incompressible if filesize larger than 22,796,452 bytes
}
prevclearcoat = clearcoat;
}
double derez = 1.0/overallscale;
derez = 1.0 / ((int)(1.0/derez));
//this hard-locks derez to exact subdivisions of 1.0
int diffuse = pow(GetParameter( kParam_B ),1.618033988749894848204586)*16;
double iirAmt = 1.0-pow(1.0-GetParameter( kParam_C ),1.618033988749894848204586);
double iirExt = iirAmt/overallscale;
double crossfade = (1.0-pow(1.0-GetParameter( kParam_D ),1.618033988749894848204586));
double wet = pow(GetParameter( kParam_E ),1.618033988749894848204586);
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;
iirInL = (inputSampleL*iirExt)+(iirInL*(1.0-iirExt)); inputSampleL = iirInL;
iirInR = (inputSampleR*iirExt)+(iirInR*(1.0-iirExt)); inputSampleR = iirInR;
bez[bez_cycle] += derez;
bez[bez_SampL] += ((inputSampleL+bez[bez_InL]) * derez);
bez[bez_SampR] += ((inputSampleR+bez[bez_InR]) * derez);
bez[bez_InL] = inputSampleL; bez[bez_InR] = inputSampleR;
if (bez[bez_cycle] > 1.0) { //hit the end point and we do a reverb sample
bez[bez_cycle] = 0.0;
iirFAL = (feedbackAL*iirAmt)+(iirFAL*(1.0-iirAmt)); feedbackAL = iirFAL;
iirFAR = (feedbackAR*iirAmt)+(iirFAR*(1.0-iirAmt)); feedbackAR = iirFAR;
iirFBL = (feedbackBL*iirAmt)+(iirFBL*(1.0-iirAmt)); feedbackBL = iirFBL;
iirFBR = (feedbackBR*iirAmt)+(iirFBR*(1.0-iirAmt)); feedbackBR = iirFBR;
iirFCL = (feedbackCL*iirAmt)+(iirFCL*(1.0-iirAmt)); feedbackCL = iirFCL;
iirFCR = (feedbackCR*iirAmt)+(iirFCR*(1.0-iirAmt)); feedbackCR = iirFCR;
iirFDL = (feedbackDL*iirAmt)+(iirFDL*(1.0-iirAmt)); feedbackDL = iirFDL;
iirFDR = (feedbackDR*iirAmt)+(iirFDR*(1.0-iirAmt)); feedbackDR = iirFDR;
double outAL, outBL, outCL, outDL, outAR, outBR, outCR, outDR;
if (diffuse < 4) {
aAL[countA] = (bez[bez_SampL]) + (feedbackAL * 0.03125);
aAR[countA] = (bez[bez_SampR]) + (feedbackAR * 0.03125);
countA++; if (countA < 0 || countA > shortA) countA = 0;
outAL = aAL[countA-((countA > shortA)?shortA+1:0)];
outAR = aAR[countA-((countA > shortA)?shortA+1:0)];
} else {
outAL = (bez[bez_SampL] - (aAL[(countA+1)-((countA+1 > shortA)?shortA+1:0)]*0.618033988749894848204586)) + (feedbackAL * 0.03125);
aAL[countA] = outAL; outAL *= 0.618033988749894848204586;
outAR = (bez[bez_SampR] - (aAR[(countA+1)-((countA+1 > shortA)?shortA+1:0)]*0.618033988749894848204586)) + (feedbackAR * 0.03125);
aAR[countA] = outAR; outAR *= 0.618033988749894848204586;
countA++; if (countA < 0 || countA > shortA) countA = 0;
outAL += aAL[countA-((countA > shortA)?shortA+1:0)];
outAR += aAR[countA-((countA > shortA)?shortA+1:0)];
}
if (diffuse < 12) {
aBL[countB] = (bez[bez_SampL]) + (feedbackBL * 0.03125);
aBR[countB] = (bez[bez_SampR]) + (feedbackBR * 0.03125);
countB++; if (countB < 0 || countB > shortB) countB = 0;
outBL = aBL[countB-((countB > shortB)?shortB+1:0)];
outBR = aBR[countB-((countB > shortB)?shortB+1:0)];
} else {
outBL = (bez[bez_SampL] - (aBL[(countB+1)-((countB+1 > shortB)?shortB+1:0)]*0.618033988749894848204586)) + (feedbackBL * 0.03125);
aBL[countB] = outBL; outBL *= 0.618033988749894848204586;
outBR = (bez[bez_SampR] - (aBR[(countB+1)-((countB+1 > shortB)?shortB+1:0)]*0.618033988749894848204586)) + (feedbackBR * 0.03125);
aBR[countB] = outBR; outBR *= 0.618033988749894848204586;
countB++; if (countB < 0 || countB > shortB) countB = 0;
outBL += aBL[countB-((countB > shortB)?shortB+1:0)];
outBR += aBR[countB-((countB > shortB)?shortB+1:0)];
}
if (diffuse < 10) {
aCL[countC] = (bez[bez_SampL]) + (feedbackCL * 0.03125);
aCR[countC] = (bez[bez_SampR]) + (feedbackCR * 0.03125);
countC++; if (countC < 0 || countC > shortC) countC = 0;
outCL = aCL[countC-((countC > shortC)?shortC+1:0)];
outCR = aCR[countC-((countC > shortC)?shortC+1:0)];
} else {
outCL = (bez[bez_SampL] - (aCL[(countC+1)-((countC+1 > shortC)?shortC+1:0)]*0.618033988749894848204586)) + (feedbackCL * 0.03125);
aCL[countC] = outCL; outCL *= 0.618033988749894848204586;
outCR = (bez[bez_SampR] - (aCR[(countC+1)-((countC+1 > shortC)?shortC+1:0)]*0.618033988749894848204586)) + (feedbackCR * 0.03125);
aCR[countC] = outCR; outCR *= 0.618033988749894848204586;
countC++; if (countC < 0 || countC > shortC) countC = 0;
outCL += aCL[countC-((countC > shortC)?shortC+1:0)];
outCR += aCR[countC-((countC > shortC)?shortC+1:0)];
}
if (diffuse < 6) {
aDL[countD] = (bez[bez_SampL]) + (feedbackDL * 0.03125);
aDR[countD] = (bez[bez_SampR]) + (feedbackDR * 0.03125);
countD++; if (countD < 0 || countD > shortD) countD = 0;
outDL = aDL[countD-((countD > shortD)?shortD+1:0)];
outDR = aDR[countD-((countD > shortD)?shortD+1:0)];
} else {
outDL = (bez[bez_SampL] - (aDL[(countD+1)-((countD+1 > shortD)?shortD+1:0)]*0.618033988749894848204586)) + (feedbackDL * 0.03125);
aDL[countD] = outDL; outDL *= 0.618033988749894848204586;
outDR = (bez[bez_SampR] - (aDR[(countD+1)-((countD+1 > shortD)?shortD+1:0)]*0.618033988749894848204586)) + (feedbackDR * 0.03125);
aDR[countD] = outDR; outDR *= 0.618033988749894848204586;
countD++; if (countD < 0 || countD > shortD) countD = 0;
outDL += aDL[countD-((countD > shortD)?shortD+1:0)];
outDR += aDR[countD-((countD > shortD)?shortD+1:0)];
}
double outEL, outFL, outGL, outHL, outER, outFR, outGR, outHR;
if (diffuse < 3) {
aEL[countE] = outAL - (outBL + outCL + outDL);
aER[countE] = outAR - (outBR + outCR + outDR);
countE++; if (countE < 0 || countE > shortE) countE = 0;
outEL = aEL[countE-((countE > shortE)?shortE+1:0)];
outER = aER[countE-((countE > shortE)?shortE+1:0)];
} else {
outEL = (outAL - (outBL + outCL + outDL)) - (aEL[(countE+1)-((countE+1 > shortE)?shortE+1:0)]*0.618033988749894848204586);
aEL[countE] = outEL; outEL *= 0.618033988749894848204586;
outER = (outAR - (outBR + outCR + outDR)) - (aER[(countE+1)-((countE+1 > shortE)?shortE+1:0)]*0.618033988749894848204586);
aER[countE] = outER; outER *= 0.618033988749894848204586;
countE++; if (countE < 0 || countE > shortE) countE = 0;
outEL += aEL[countE-((countE > shortE)?shortE+1:0)];
outER += aER[countE-((countE > shortE)?shortE+1:0)];
}
if (diffuse < 8) {
aFL[countF] = outBL - (outAL + outCL + outDL);
aFR[countF] = outBR - (outAR + outCR + outDR);
countF++; if (countF < 0 || countF > shortF) countF = 0;
outFL = aFL[countF-((countF > shortF)?shortF+1:0)];
outFR = aFR[countF-((countF > shortF)?shortF+1:0)];
} else {
outFL = (outBL - (outAL + outCL + outDL)) - (aFL[(countF+1)-((countF+1 > shortF)?shortF+1:0)]*0.618033988749894848204586);
aFL[countF] = outFL; outFL *= 0.618033988749894848204586;
outFR = (outBR - (outAR + outCR + outDR)) - (aFR[(countF+1)-((countF+1 > shortF)?shortF+1:0)]*0.618033988749894848204586);
aFR[countF] = outFR; outFR *= 0.618033988749894848204586;
countF++; if (countF < 0 || countF > shortF) countF = 0;
outFL += aFL[countF-((countF > shortF)?shortF+1:0)];
outFR += aFR[countF-((countF > shortF)?shortF+1:0)];
}
if (diffuse < 5) {
aGL[countG] = outCL - (outAL + outBL + outDL);
aGR[countG] = outCR - (outAR + outBR + outDR);
countG++; if (countG < 0 || countG > shortG) countG = 0;
outGL = aGL[countG-((countG > shortG)?shortG+1:0)];
outGR = aGR[countG-((countG > shortG)?shortG+1:0)];
} else {
outGL = (outCL - (outAL + outBL + outDL)) - (aGL[(countG+1)-((countG+1 > shortG)?shortG+1:0)]*0.618033988749894848204586);
aGL[countG] = outGL; outGL *= 0.618033988749894848204586;
outGR = (outCR - (outAR + outBR + outDR)) - (aGR[(countG+1)-((countG+1 > shortG)?shortG+1:0)]*0.618033988749894848204586);
aGR[countG] = outGR; outGR *= 0.618033988749894848204586;
countG++; if (countG < 0 || countG > shortG) countG = 0;
outGL += aGL[countG-((countG > shortG)?shortG+1:0)];
outGR += aGR[countG-((countG > shortG)?shortG+1:0)];
}
if (diffuse < 11) {
aHL[countH] = outDL - (outAL + outBL + outCL);
aHR[countH] = outDR - (outAR + outBR + outCR);
countH++; if (countH < 0 || countH > shortH) countH = 0;
outHL = aHL[countH-((countH > shortH)?shortH+1:0)];
outHR = aHR[countH-((countH > shortH)?shortH+1:0)];
} else {
outHL = (outDL - (outAL + outBL + outCL)) - (aHL[(countH+1)-((countH+1 > shortH)?shortH+1:0)]*0.618033988749894848204586);
aHL[countH] = outHL; outHL *= 0.618033988749894848204586;
outHR = (outDR - (outAR + outBR + outCR)) - (aHR[(countH+1)-((countH+1 > shortH)?shortH+1:0)]*0.618033988749894848204586);
aHR[countH] = outHR; outHR *= 0.618033988749894848204586;
countH++; if (countH < 0 || countH > shortH) countH = 0;
outHL += aHL[countH-((countH > shortH)?shortH+1:0)];
outHR += aHR[countH-((countH > shortH)?shortH+1:0)];
}
double outIL, outJL, outKL, outLL, outIR, outJR, outKR, outLR;
if (diffuse < 2) {
aIL[countI] = outEL - (outFL + outGL + outHL);
aIR[countI] = outER - (outFR + outGR + outHR);
countI++; if (countI < 0 || countI > shortI) countI = 0;
outIL = aIL[countI-((countI > shortI)?shortI+1:0)];
outIR = aIR[countI-((countI > shortI)?shortI+1:0)];
} else {
outIL = (outEL - (outFL + outGL + outHL)) - (aIL[(countI+1)-((countI+1 > shortI)?shortI+1:0)]*0.618033988749894848204586);
aIL[countI] = outIL; outIL *= 0.618033988749894848204586;
outIR = (outER - (outFR + outGR + outHR)) - (aIR[(countI+1)-((countI+1 > shortI)?shortI+1:0)]*0.618033988749894848204586);
aIR[countI] = outIR; outIR *= 0.618033988749894848204586;
countI++; if (countI < 0 || countI > shortI) countI = 0;
outIL += aIL[countI-((countI > shortI)?shortI+1:0)];
outIR += aIR[countI-((countI > shortI)?shortI+1:0)];
}
if (diffuse < 14) {
aJL[countJ] = outFL - (outEL + outGL + outHL);
aJR[countJ] = outFR - (outER + outGR + outHR);
countJ++; if (countJ < 0 || countJ > shortJ) countJ = 0;
outJL = aJL[countJ-((countJ > shortJ)?shortJ+1:0)];
outJR = aJR[countJ-((countJ > shortJ)?shortJ+1:0)];
} else {
outJL = (outFL - (outEL + outGL + outHL)) - (aJL[(countJ+1)-((countJ+1 > shortJ)?shortJ+1:0)]*0.618033988749894848204586);
aJL[countJ] = outJL; outJL *= 0.618033988749894848204586;
outJR = (outFR - (outER + outGR + outHR)) - (aJR[(countJ+1)-((countJ+1 > shortJ)?shortJ+1:0)]*0.618033988749894848204586);
aJR[countJ] = outJR; outJR *= 0.618033988749894848204586;
countJ++; if (countJ < 0 || countJ > shortJ) countJ = 0;
outJL += aJL[countJ-((countJ > shortJ)?shortJ+1:0)];
outJR += aJR[countJ-((countJ > shortJ)?shortJ+1:0)];
}
if (diffuse < 13) {
aKL[countK] = outGL - (outEL + outFL + outHL);
aKR[countK] = outGR - (outER + outFR + outHR);
countK++; if (countK < 0 || countK > shortK) countK = 0;
outKL = aKL[countK-((countK > shortK)?shortK+1:0)];
outKR = aKR[countK-((countK > shortK)?shortK+1:0)];
} else {
outKL = (outGL - (outEL + outFL + outHL)) - (aKL[(countK+1)-((countK+1 > shortK)?shortK+1:0)]*0.618033988749894848204586);
aKL[countK] = outKL; outKL *= 0.618033988749894848204586;
outKR = (outGR - (outER + outFR + outHR)) - (aKR[(countK+1)-((countK+1 > shortK)?shortK+1:0)]*0.618033988749894848204586);
aKR[countK] = outKR; outKR *= 0.618033988749894848204586;
countK++; if (countK < 0 || countK > shortK) countK = 0;
outKL += aKL[countK-((countK > shortK)?shortK+1:0)];
outKR += aKR[countK-((countK > shortK)?shortK+1:0)];
}
if (diffuse < 7) {
aLL[countL] = outHL - (outEL + outFL + outGL);
aLR[countL] = outHR - (outER + outFR + outGR);
countL++; if (countL < 0 || countL > shortL) countL = 0;
outLL = aLL[countL-((countL > shortL)?shortL+1:0)];
outLR = aLR[countL-((countL > shortL)?shortL+1:0)];
} else {
outLL = (outHL - (outEL + outFL + outGL)) - (aLL[(countL+1)-((countL+1 > shortL)?shortL+1:0)]*0.618033988749894848204586);
aLL[countL] = outLL; outLL *= 0.618033988749894848204586;
outLR = (outHR - (outER + outFR + outGR)) - (aLR[(countL+1)-((countL+1 > shortL)?shortL+1:0)]*0.618033988749894848204586);
aLR[countL] = outLR; outLR *= 0.618033988749894848204586;
countL++; if (countL < 0 || countL > shortL) countL = 0;
outLL += aLL[countL-((countL > shortL)?shortL+1:0)];
outLR += aLR[countL-((countL > shortL)?shortL+1:0)];
}
double outML, outNL, outOL, outPL, outMR, outNR, outOR, outPR;
if (diffuse < 0) {
aML[countM] = outIL - (outJL + outKL + outLL);
aMR[countM] = outIR - (outJR + outKR + outLR);
countM++; if (countM < 0 || countM > shortM) countM = 0;
outML = aML[countM-((countM > shortM)?shortM+1:0)];
outMR = aMR[countM-((countM > shortM)?shortM+1:0)];
} else {
outML = (outIL - (outJL + outKL + outLL)) - (aML[(countM+1)-((countM+1 > shortM)?shortM+1:0)]*0.618033988749894848204586);
aML[countM] = outML; outML *= 0.618033988749894848204586;
outMR = (outIR - (outJR + outKR + outLR)) - (aMR[(countM+1)-((countM+1 > shortM)?shortM+1:0)]*0.618033988749894848204586);
aMR[countM] = outMR; outMR *= 0.618033988749894848204586;
countM++; if (countM < 0 || countM > shortM) countM = 0;
outML += aML[countM-((countM > shortM)?shortM+1:0)];
outMR += aMR[countM-((countM > shortM)?shortM+1:0)];
}
if (diffuse < 15) {
aNL[countN] = outJL - (outIL + outKL + outLL);
aNR[countN] = outJR - (outIR + outKR + outLR);
countN++; if (countN < 0 || countN > shortN) countN = 0;
outNL = aNL[countN-((countN > shortN)?shortN+1:0)];
outNR = aNR[countN-((countN > shortN)?shortN+1:0)];
} else {
outNL = (outJL - (outIL + outKL + outLL)) - (aNL[(countN+1)-((countN+1 > shortN)?shortN+1:0)]*0.618033988749894848204586);
aNL[countN] = outNL; outNL *= 0.618033988749894848204586;
outNR = (outJR - (outIR + outKR + outLR)) - (aNR[(countN+1)-((countN+1 > shortN)?shortN+1:0)]*0.618033988749894848204586);
aNR[countN] = outNR; outNR *= 0.618033988749894848204586;
countN++; if (countN < 0 || countN > shortN) countN = 0;
outNL += aNL[countN-((countN > shortN)?shortN+1:0)];
outNR += aNR[countN-((countN > shortN)?shortN+1:0)];
}
if (diffuse < 1) {
aOL[countO] = outKL - (outIL + outJL + outLL);
aOR[countO] = outKR - (outIR + outJR + outLR);
countO++; if (countO < 0 || countO > shortO) countO = 0;
outOL = aOL[countO-((countO > shortO)?shortO+1:0)];
outOR = aOR[countO-((countO > shortO)?shortO+1:0)];
} else {
outOL = (outKL - (outIL + outJL + outLL)) - (aOL[(countO+1)-((countO+1 > shortO)?shortO+1:0)]*0.618033988749894848204586);
aOL[countO] = outOL; outOL *= 0.618033988749894848204586;
outOR = (outKR - (outIR + outJR + outLR)) - (aOR[(countO+1)-((countO+1 > shortO)?shortO+1:0)]*0.618033988749894848204586);
aOR[countO] = outOR; outOR *= 0.618033988749894848204586;
countO++; if (countO < 0 || countO > shortO) countO = 0;
outOL += aOL[countO-((countO > shortO)?shortO+1:0)];
outOR += aOR[countO-((countO > shortO)?shortO+1:0)];
}
if (diffuse < 9) {
aPL[countP] = outLL - (outIL + outJL + outKL);
aPR[countP] = outLR - (outIR + outJR + outKR);
countP++; if (countP < 0 || countP > shortP) countP = 0;
outPL = aPL[countP-((countP > shortP)?shortP+1:0)];
outPR = aPR[countP-((countP > shortP)?shortP+1:0)];
} else {
outPL = (outLL - (outIL + outJL + outKL)) - (aPL[(countP+1)-((countP+1 > shortP)?shortP+1:0)]*0.618033988749894848204586);
aPL[countP] = outPL; outPL *= 0.618033988749894848204586;
outPR = (outLR - (outIR + outJR + outKR)) - (aPR[(countP+1)-((countP+1 > shortP)?shortP+1:0)]*0.618033988749894848204586);
aPR[countP] = outPR; outPR *= 0.618033988749894848204586;
countP++; if (countP < 0 || countP > shortP) countP = 0;
outPL += aPL[countP-((countP > shortP)?shortP+1:0)];
outPR += aPR[countP-((countP > shortP)?shortP+1:0)];
}
double steerAL = outML - (outNL + outOL + outPL);
double steerBL = outNL - (outML + outOL + outPL);
double steerCL = outOL - (outML + outNL + outPL);
double steerDL = outPL - (outML + outNL + outOL);
double steerAR = outMR - (outNR + outOR + outPR);
double steerBR = outNR - (outMR + outOR + outPR);
double steerCR = outOR - (outMR + outNR + outPR);
double steerDR = outPR - (outMR + outNR + outOR);
feedbackAL = (steerAL * (1.0-crossfade)) + (steerAR * crossfade);
feedbackBL = (steerBL * (1.0-crossfade)) + (steerBR * crossfade);
feedbackCL = (steerCL * (1.0-crossfade)) + (steerCR * crossfade);
feedbackDL = (steerDL * (1.0-crossfade)) + (steerDR * crossfade);
feedbackAR = (steerAR * (1.0-crossfade)) + (steerAL * crossfade);
feedbackBR = (steerBR * (1.0-crossfade)) + (steerBL * crossfade);
feedbackCR = (steerCR * (1.0-crossfade)) + (steerCL * crossfade);
feedbackDR = (steerDR * (1.0-crossfade)) + (steerDL * crossfade);
//which we need to feed back into the input again, a bit
inputSampleL = (outML + outNL + outOL + outPL)/16.0;
inputSampleR = (outMR + outNR + outOR + outPR)/16.0;
//and take the final combined sum of outputs, corrected for Householder gain and averaging
bez[bez_CL] = bez[bez_BL];
bez[bez_BL] = bez[bez_AL];
bez[bez_AL] = inputSampleL;
bez[bez_SampL] = 0.0;
bez[bez_CR] = bez[bez_BR];
bez[bez_BR] = bez[bez_AR];
bez[bez_AR] = inputSampleR;
bez[bez_SampR] = 0.0;
}
double CBL = (bez[bez_CL]*(1.0-bez[bez_cycle]))+(bez[bez_BL]*bez[bez_cycle]);
double CBR = (bez[bez_CR]*(1.0-bez[bez_cycle]))+(bez[bez_BR]*bez[bez_cycle]);
double BAL = (bez[bez_BL]*(1.0-bez[bez_cycle]))+(bez[bez_AL]*bez[bez_cycle]);
double BAR = (bez[bez_BR]*(1.0-bez[bez_cycle]))+(bez[bez_AR]*bez[bez_cycle]);
double CBAL = (bez[bez_BL]+(CBL*(1.0-bez[bez_cycle]))+(BAL*bez[bez_cycle]))*0.125;
double CBAR = (bez[bez_BR]+(CBR*(1.0-bez[bez_cycle]))+(BAR*bez[bez_cycle]))*0.125;
inputSampleL = CBAL;
inputSampleR = CBAR;
iirOutL = (inputSampleL*iirExt)+(iirOutL*(1.0-iirExt)); inputSampleL = iirOutL;
iirOutR = (inputSampleR*iirExt)+(iirOutR*(1.0-iirExt)); inputSampleR = iirOutR;
inputSampleL = (inputSampleL*wet)+(drySampleL*(1.0-wet));
inputSampleR = (inputSampleR*wet)+(drySampleR*(1.0-wet));
if (inputSampleL > 1.0) inputSampleL = 1.0;
if (inputSampleL < -1.0) inputSampleL = -1.0;
if (inputSampleR > 1.0) inputSampleR = 1.0;
if (inputSampleR < -1.0) inputSampleR = -1.0;
//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;
}
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