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airwindows/plugins/MacVST/Galactic3/source/Galactic3Proc.cpp
Christopher Johnson 027b95722f Galactic3
2024-10-13 17:34:06 -04:00

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/* ========================================
* Galactic3 - Galactic3.h
* Copyright (c) airwindows, Airwindows uses the MIT license
* ======================================== */
#ifndef __Galactic3_H
#include "Galactic3.h"
#endif
void Galactic3::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
double overallscale = 1.0;
overallscale /= 44100.0;
overallscale *= getSampleRate();
double regen = 0.0625+((1.0-A)*0.0625);
double attenuate = (1.0 - (regen / 0.125))*1.333;
double lowpass = pow(1.00001-(1.0-B),2.0)/sqrt(overallscale);
double drift = pow(C,3)*0.001;
double derez = D/overallscale;
if (derez < 0.0005) derez = 0.0005; if (derez > 1.0) derez = 1.0;
derez = 1.0 / ((int)(1.0/derez));
//this hard-locks derez to exact subdivisions of 1.0
double size = (E*1.77)+0.1;
double wet = 1.0-(pow(1.0-F,3));
delayI = 3407.0*size;
delayJ = 1823.0*size;
delayK = 859.0*size;
delayL = 331.0*size;
delayA = 4801.0*size;
delayB = 2909.0*size;
delayC = 1153.0*size;
delayD = 461.0*size;
delayE = 7607.0*size;
delayF = 4217.0*size;
delayG = 2269.0*size;
delayH = 1597.0*size;
delayM = 256;
while (--sampleFrames >= 0)
{
double inputSampleL = *in1;
double inputSampleR = *in2;
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;
vibM += (oldfpd*drift);
if (vibM > (3.141592653589793238*2.0)) {
vibM = 0.0;
oldfpd = 0.4294967295+(fpdL*0.0000000000618);
}
aML[countM] = inputSampleL * attenuate;
aMR[countM] = inputSampleR * attenuate;
countM++; if (countM < 0 || countM > delayM) countM = 0;
double offsetML = (sin(vibM)+1.0)*127;
double offsetMR = (sin(vibM+(3.141592653589793238/2.0))+1.0)*127;
int workingML = countM + offsetML;
int workingMR = countM + offsetMR;
double interpolML = (aML[workingML-((workingML > delayM)?delayM+1:0)] * (1-(offsetML-floor(offsetML))));
interpolML += (aML[workingML+1-((workingML+1 > delayM)?delayM+1:0)] * ((offsetML-floor(offsetML))) );
double interpolMR = (aMR[workingMR-((workingMR > delayM)?delayM+1:0)] * (1-(offsetMR-floor(offsetMR))));
interpolMR += (aMR[workingMR+1-((workingMR+1 > delayM)?delayM+1:0)] * ((offsetMR-floor(offsetMR))) );
inputSampleL = interpolML;
inputSampleR = interpolMR;
//predelay that applies vibrato
//want vibrato speed AND depth like in MatrixVerb
iirAL = (iirAL*(1.0-lowpass))+(inputSampleL*lowpass); inputSampleL = iirAL;
iirAR = (iirAR*(1.0-lowpass))+(inputSampleR*lowpass); inputSampleR = iirAR;
//initial filter
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;
aIL[countI] = (bez[bez_SampL]+bez[bez_UnInL]) + (feedbackAR * regen);
aJL[countJ] = (bez[bez_SampL]+bez[bez_UnInL]) + (feedbackBR * regen);
aKL[countK] = (bez[bez_SampL]+bez[bez_UnInL]) + (feedbackCR * regen);
aLL[countL] = (bez[bez_SampL]+bez[bez_UnInL]) + (feedbackDR * regen);
bez[bez_UnInL] = bez[bez_SampL];
aIR[countI] = (bez[bez_SampR]+bez[bez_UnInR]) + (feedbackAL * regen);
aJR[countJ] = (bez[bez_SampR]+bez[bez_UnInR]) + (feedbackBL * regen);
aKR[countK] = (bez[bez_SampR]+bez[bez_UnInR]) + (feedbackCL * regen);
aLR[countL] = (bez[bez_SampR]+bez[bez_UnInR]) + (feedbackDL * regen);
bez[bez_UnInR] = bez[bez_SampR];
countI++; if (countI < 0 || countI > delayI) countI = 0;
countJ++; if (countJ < 0 || countJ > delayJ) countJ = 0;
countK++; if (countK < 0 || countK > delayK) countK = 0;
countL++; if (countL < 0 || countL > delayL) countL = 0;
double outIL = aIL[countI-((countI > delayI)?delayI+1:0)];
double outJL = aJL[countJ-((countJ > delayJ)?delayJ+1:0)];
double outKL = aKL[countK-((countK > delayK)?delayK+1:0)];
double outLL = aLL[countL-((countL > delayL)?delayL+1:0)];
double outIR = aIR[countI-((countI > delayI)?delayI+1:0)];
double outJR = aJR[countJ-((countJ > delayJ)?delayJ+1:0)];
double outKR = aKR[countK-((countK > delayK)?delayK+1:0)];
double outLR = aLR[countL-((countL > delayL)?delayL+1:0)];
//first block: now we have four outputs
aAL[countA] = (outIL - (outJL + outKL + outLL));
aBL[countB] = (outJL - (outIL + outKL + outLL));
aCL[countC] = (outKL - (outIL + outJL + outLL));
aDL[countD] = (outLL - (outIL + outJL + outKL));
aAR[countA] = (outIR - (outJR + outKR + outLR));
aBR[countB] = (outJR - (outIR + outKR + outLR));
aCR[countC] = (outKR - (outIR + outJR + outLR));
aDR[countD] = (outLR - (outIR + outJR + outKR));
countA++; if (countA < 0 || countA > delayA) countA = 0;
countB++; if (countB < 0 || countB > delayB) countB = 0;
countC++; if (countC < 0 || countC > delayC) countC = 0;
countD++; if (countD < 0 || countD > delayD) countD = 0;
double outAL = aAL[countA-((countA > delayA)?delayA+1:0)];
double outBL = aBL[countB-((countB > delayB)?delayB+1:0)];
double outCL = aCL[countC-((countC > delayC)?delayC+1:0)];
double outDL = aDL[countD-((countD > delayD)?delayD+1:0)];
double outAR = aAR[countA-((countA > delayA)?delayA+1:0)];
double outBR = aBR[countB-((countB > delayB)?delayB+1:0)];
double outCR = aCR[countC-((countC > delayC)?delayC+1:0)];
double outDR = aDR[countD-((countD > delayD)?delayD+1:0)];
//second block: four more outputs
aEL[countE] = (outAL - (outBL + outCL + outDL));
aFL[countF] = (outBL - (outAL + outCL + outDL));
aGL[countG] = (outCL - (outAL + outBL + outDL));
aHL[countH] = (outDL - (outAL + outBL + outCL));
aER[countE] = (outAR - (outBR + outCR + outDR));
aFR[countF] = (outBR - (outAR + outCR + outDR));
aGR[countG] = (outCR - (outAR + outBR + outDR));
aHR[countH] = (outDR - (outAR + outBR + outCR));
countE++; if (countE < 0 || countE > delayE) countE = 0;
countF++; if (countF < 0 || countF > delayF) countF = 0;
countG++; if (countG < 0 || countG > delayG) countG = 0;
countH++; if (countH < 0 || countH > delayH) countH = 0;
double outEL = aEL[countE-((countE > delayE)?delayE+1:0)];
double outFL = aFL[countF-((countF > delayF)?delayF+1:0)];
double outGL = aGL[countG-((countG > delayG)?delayG+1:0)];
double outHL = aHL[countH-((countH > delayH)?delayH+1:0)];
double outER = aER[countE-((countE > delayE)?delayE+1:0)];
double outFR = aFR[countF-((countF > delayF)?delayF+1:0)];
double outGR = aGR[countG-((countG > delayG)?delayG+1:0)];
double outHR = aHR[countH-((countH > delayH)?delayH+1:0)];
//third block: final outputs
feedbackAL = (outEL - (outFL + outGL + outHL));
feedbackBL = (outFL - (outEL + outGL + outHL));
feedbackCL = (outGL - (outEL + outFL + outHL));
feedbackDL = (outHL - (outEL + outFL + outGL));
feedbackAR = (outER - (outFR + outGR + outHR));
feedbackBR = (outFR - (outER + outGR + outHR));
feedbackCR = (outGR - (outER + outFR + outHR));
feedbackDR = (outHR - (outER + outFR + outGR));
//which we need to feed back into the input again, a bit
inputSampleL = (outEL + outFL + outGL + outHL)/8.0;
inputSampleR = (outER + outFR + outGR + outHR)/8.0;
//and take the final combined sum of outputs
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;
iirBL = (iirBL*(1.0-lowpass))+(inputSampleL*lowpass); inputSampleL = iirBL;
iirBR = (iirBR*(1.0-lowpass))+(inputSampleR*lowpass); inputSampleR = iirBR;
//end filter
if (wet < 1.0) {
inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet));
inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet));
}
//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
*out1 = inputSampleL;
*out2 = inputSampleR;
in1++;
in2++;
out1++;
out2++;
}
}
void Galactic3::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
double overallscale = 1.0;
overallscale /= 44100.0;
overallscale *= getSampleRate();
double regen = 0.0625+((1.0-A)*0.0625);
double attenuate = (1.0 - (regen / 0.125))*1.333;
double lowpass = pow(1.00001-(1.0-B),2.0)/sqrt(overallscale);
double drift = pow(C,3)*0.001;
double derez = D/overallscale;
if (derez < 0.0005) derez = 0.0005; if (derez > 1.0) derez = 1.0;
derez = 1.0 / ((int)(1.0/derez));
//this hard-locks derez to exact subdivisions of 1.0
double size = (E*1.77)+0.1;
double wet = 1.0-(pow(1.0-F,3));
delayI = 3407.0*size;
delayJ = 1823.0*size;
delayK = 859.0*size;
delayL = 331.0*size;
delayA = 4801.0*size;
delayB = 2909.0*size;
delayC = 1153.0*size;
delayD = 461.0*size;
delayE = 7607.0*size;
delayF = 4217.0*size;
delayG = 2269.0*size;
delayH = 1597.0*size;
delayM = 256;
while (--sampleFrames >= 0)
{
double inputSampleL = *in1;
double inputSampleR = *in2;
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;
vibM += (oldfpd*drift);
if (vibM > (3.141592653589793238*2.0)) {
vibM = 0.0;
oldfpd = 0.4294967295+(fpdL*0.0000000000618);
}
aML[countM] = inputSampleL * attenuate;
aMR[countM] = inputSampleR * attenuate;
countM++; if (countM < 0 || countM > delayM) countM = 0;
double offsetML = (sin(vibM)+1.0)*127;
double offsetMR = (sin(vibM+(3.141592653589793238/2.0))+1.0)*127;
int workingML = countM + offsetML;
int workingMR = countM + offsetMR;
double interpolML = (aML[workingML-((workingML > delayM)?delayM+1:0)] * (1-(offsetML-floor(offsetML))));
interpolML += (aML[workingML+1-((workingML+1 > delayM)?delayM+1:0)] * ((offsetML-floor(offsetML))) );
double interpolMR = (aMR[workingMR-((workingMR > delayM)?delayM+1:0)] * (1-(offsetMR-floor(offsetMR))));
interpolMR += (aMR[workingMR+1-((workingMR+1 > delayM)?delayM+1:0)] * ((offsetMR-floor(offsetMR))) );
inputSampleL = interpolML;
inputSampleR = interpolMR;
//predelay that applies vibrato
//want vibrato speed AND depth like in MatrixVerb
iirAL = (iirAL*(1.0-lowpass))+(inputSampleL*lowpass); inputSampleL = iirAL;
iirAR = (iirAR*(1.0-lowpass))+(inputSampleR*lowpass); inputSampleR = iirAR;
//initial filter
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;
aIL[countI] = (bez[bez_SampL]+bez[bez_UnInL]) + (feedbackAR * regen);
aJL[countJ] = (bez[bez_SampL]+bez[bez_UnInL]) + (feedbackBR * regen);
aKL[countK] = (bez[bez_SampL]+bez[bez_UnInL]) + (feedbackCR * regen);
aLL[countL] = (bez[bez_SampL]+bez[bez_UnInL]) + (feedbackDR * regen);
bez[bez_UnInL] = bez[bez_SampL];
aIR[countI] = (bez[bez_SampR]+bez[bez_UnInR]) + (feedbackAL * regen);
aJR[countJ] = (bez[bez_SampR]+bez[bez_UnInR]) + (feedbackBL * regen);
aKR[countK] = (bez[bez_SampR]+bez[bez_UnInR]) + (feedbackCL * regen);
aLR[countL] = (bez[bez_SampR]+bez[bez_UnInR]) + (feedbackDL * regen);
bez[bez_UnInR] = bez[bez_SampR];
countI++; if (countI < 0 || countI > delayI) countI = 0;
countJ++; if (countJ < 0 || countJ > delayJ) countJ = 0;
countK++; if (countK < 0 || countK > delayK) countK = 0;
countL++; if (countL < 0 || countL > delayL) countL = 0;
double outIL = aIL[countI-((countI > delayI)?delayI+1:0)];
double outJL = aJL[countJ-((countJ > delayJ)?delayJ+1:0)];
double outKL = aKL[countK-((countK > delayK)?delayK+1:0)];
double outLL = aLL[countL-((countL > delayL)?delayL+1:0)];
double outIR = aIR[countI-((countI > delayI)?delayI+1:0)];
double outJR = aJR[countJ-((countJ > delayJ)?delayJ+1:0)];
double outKR = aKR[countK-((countK > delayK)?delayK+1:0)];
double outLR = aLR[countL-((countL > delayL)?delayL+1:0)];
//first block: now we have four outputs
aAL[countA] = (outIL - (outJL + outKL + outLL));
aBL[countB] = (outJL - (outIL + outKL + outLL));
aCL[countC] = (outKL - (outIL + outJL + outLL));
aDL[countD] = (outLL - (outIL + outJL + outKL));
aAR[countA] = (outIR - (outJR + outKR + outLR));
aBR[countB] = (outJR - (outIR + outKR + outLR));
aCR[countC] = (outKR - (outIR + outJR + outLR));
aDR[countD] = (outLR - (outIR + outJR + outKR));
countA++; if (countA < 0 || countA > delayA) countA = 0;
countB++; if (countB < 0 || countB > delayB) countB = 0;
countC++; if (countC < 0 || countC > delayC) countC = 0;
countD++; if (countD < 0 || countD > delayD) countD = 0;
double outAL = aAL[countA-((countA > delayA)?delayA+1:0)];
double outBL = aBL[countB-((countB > delayB)?delayB+1:0)];
double outCL = aCL[countC-((countC > delayC)?delayC+1:0)];
double outDL = aDL[countD-((countD > delayD)?delayD+1:0)];
double outAR = aAR[countA-((countA > delayA)?delayA+1:0)];
double outBR = aBR[countB-((countB > delayB)?delayB+1:0)];
double outCR = aCR[countC-((countC > delayC)?delayC+1:0)];
double outDR = aDR[countD-((countD > delayD)?delayD+1:0)];
//second block: four more outputs
aEL[countE] = (outAL - (outBL + outCL + outDL));
aFL[countF] = (outBL - (outAL + outCL + outDL));
aGL[countG] = (outCL - (outAL + outBL + outDL));
aHL[countH] = (outDL - (outAL + outBL + outCL));
aER[countE] = (outAR - (outBR + outCR + outDR));
aFR[countF] = (outBR - (outAR + outCR + outDR));
aGR[countG] = (outCR - (outAR + outBR + outDR));
aHR[countH] = (outDR - (outAR + outBR + outCR));
countE++; if (countE < 0 || countE > delayE) countE = 0;
countF++; if (countF < 0 || countF > delayF) countF = 0;
countG++; if (countG < 0 || countG > delayG) countG = 0;
countH++; if (countH < 0 || countH > delayH) countH = 0;
double outEL = aEL[countE-((countE > delayE)?delayE+1:0)];
double outFL = aFL[countF-((countF > delayF)?delayF+1:0)];
double outGL = aGL[countG-((countG > delayG)?delayG+1:0)];
double outHL = aHL[countH-((countH > delayH)?delayH+1:0)];
double outER = aER[countE-((countE > delayE)?delayE+1:0)];
double outFR = aFR[countF-((countF > delayF)?delayF+1:0)];
double outGR = aGR[countG-((countG > delayG)?delayG+1:0)];
double outHR = aHR[countH-((countH > delayH)?delayH+1:0)];
//third block: final outputs
feedbackAL = (outEL - (outFL + outGL + outHL));
feedbackBL = (outFL - (outEL + outGL + outHL));
feedbackCL = (outGL - (outEL + outFL + outHL));
feedbackDL = (outHL - (outEL + outFL + outGL));
feedbackAR = (outER - (outFR + outGR + outHR));
feedbackBR = (outFR - (outER + outGR + outHR));
feedbackCR = (outGR - (outER + outFR + outHR));
feedbackDR = (outHR - (outER + outFR + outGR));
//which we need to feed back into the input again, a bit
inputSampleL = (outEL + outFL + outGL + outHL)/8.0;
inputSampleR = (outER + outFR + outGR + outHR)/8.0;
//and take the final combined sum of outputs
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;
iirBL = (iirBL*(1.0-lowpass))+(inputSampleL*lowpass); inputSampleL = iirBL;
iirBR = (iirBR*(1.0-lowpass))+(inputSampleR*lowpass); inputSampleR = iirBR;
//end filter
if (wet < 1.0) {
inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet));
inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet));
}
//begin 64 bit stereo floating point dither
//int expon; frexp((double)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
//inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
//frexp((double)inputSampleR, &expon);
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
//inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
//end 64 bit stereo floating point dither
*out1 = inputSampleL;
*out2 = inputSampleR;
in1++;
in2++;
out1++;
out2++;
}
}
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