mirror of
https://github.com/airwindows/airwindows.git
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201 lines
9.5 KiB
C++
Executable file
201 lines
9.5 KiB
C++
Executable file
/* ========================================
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* PurestConsole4Buss - PurestConsole4Buss.h
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* Copyright (c) airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __PurestConsole4Buss_H
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#include "PurestConsole4Buss.h"
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#endif
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void PurestConsole4Buss::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
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{
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float* in1 = inputs[0];
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float* in2 = inputs[1];
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float* out1 = outputs[0];
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float* out2 = outputs[1];
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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double bezierRez = fmax(pow((1.0-SMO)*0.25,3.0)/overallscale,0.00001);
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int stepped = 999999; if (bezierRez > 0.000001) stepped = (int)(1.0/bezierRez); bezierRez = 1.0/stepped;
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double bezierTrim = 1.0-(bezierRez*((double)stepped/(stepped+1.0)));
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//manages the overall Bezier control smoothing system plugin-wide and feed all controls
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//into bezier[] as just 0-1 values, unprocessed. do it IN the control smoothing engine
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while (--sampleFrames >= 0)
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{
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double inputSampleL = *in1;
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double inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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inputSampleL = fmax(fmin(inputSampleL,1.1),-1.1);
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inputSampleR = fmax(fmin(inputSampleR,1.1),-1.1);
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long double X = inputSampleL; X *= X; //long double for even
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long double temp = inputSampleL * X; //the initial multiplies
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inputSampleL += temp*0.16666666666666666666666666666666666; temp *= X;
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inputSampleL += temp*0.075; temp *= X;
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inputSampleL += temp*0.04464285714285714285714285714285714; temp *= X;
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inputSampleL += temp*0.03038194444444444444444444444444444; temp *= X;
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inputSampleL += temp*0.02237215909090909090909090909090909; temp *= X;
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inputSampleL += temp*0.01735276442307692307692307692307692; temp *= X;
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inputSampleL += temp*0.01396484375; temp *= X;
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inputSampleL += temp*0.01155180089613970588235294117647058; temp *= X;
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inputSampleL += temp*0.00976160952919407894736842105263157; temp *= X;
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inputSampleL += temp*0.00839033580961681547619047619047619;
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X = inputSampleR; X *= X; //long double for even
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temp = inputSampleR * X; //the initial multiplies
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inputSampleR += temp*0.16666666666666666666666666666666666; temp *= X;
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inputSampleR += temp*0.075; temp *= X;
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inputSampleR += temp*0.04464285714285714285714285714285714; temp *= X;
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inputSampleR += temp*0.03038194444444444444444444444444444; temp *= X;
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inputSampleR += temp*0.02237215909090909090909090909090909; temp *= X;
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inputSampleR += temp*0.01735276442307692307692307692307692; temp *= X;
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inputSampleR += temp*0.01396484375; temp *= X;
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inputSampleR += temp*0.01155180089613970588235294117647058; temp *= X;
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inputSampleR += temp*0.00976160952919407894736842105263157; temp *= X;
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inputSampleR += temp*0.00839033580961681547619047619047619;
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//retain mantissa of a long double increasing power function
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//long double probably doesn't handle more than 36 digits or so
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//begin Bezier control smoothing engine
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bezier[bezier_cycle] += bezierRez;
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if (bezier[bezier_cycle] > 1.0) {bezier[bezier_cycle] = 0.0;
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bezier[bezierGainL_C] = bezier[bezierGainL_B]; bezier[bezierGainL_B] = bezier[bezierGainL_A];
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bezier[bezierGainR_C] = bezier[bezierGainR_B]; bezier[bezierGainR_B] = bezier[bezierGainR_A];
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//one of these bucket brigade lines for every smoothed control
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//begin expensive control calculations
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double gain = FAD*2.0;
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if (gain > 1.0) gain *= gain;
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if (gain < 1.0) gain = 1.0-pow(1.0-gain,2);
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gain *= 0.763932022500211;
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bezier[bezierGainL_A] = gain*sin(M_PI_2-(PAN*M_PI_2));
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bezier[bezierGainR_A] = gain*sin(PAN*M_PI_2);
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//end expensive control calculations
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} double lerp = bezier[bezier_cycle]*bezierTrim;
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bezier[bezierGainL_Out] = bezier[bezierGainL_B]+(bezier[bezierGainL_C]*(1.0-lerp)*(1.0-lerp))+(bezier[bezierGainL_B]*2.0*(1.0-lerp)*lerp)+(bezier[bezierGainL_A]*lerp*lerp);
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bezier[bezierGainR_Out] = bezier[bezierGainR_B]+(bezier[bezierGainR_C]*(1.0-lerp)*(1.0-lerp))+(bezier[bezierGainR_B]*2.0*(1.0-lerp)*lerp)+(bezier[bezierGainR_A]*lerp*lerp);
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//end Bezier control smoothing engine
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inputSampleL *= bezier[bezierGainL_Out];
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inputSampleR *= bezier[bezierGainR_Out];
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//begin 32 bit stereo floating point dither
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int expon; frexpf((float)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 3.553e-44l * pow(2,expon+62));
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frexpf((float)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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if (fpdL-fpdR < 1073741824 || fpdR-fpdL < 1073741824) {
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;}
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inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 3.553e-44l * pow(2,expon+62));
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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in1++;
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in2++;
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out1++;
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out2++;
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}
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}
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void PurestConsole4Buss::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
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{
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double* in1 = inputs[0];
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double* in2 = inputs[1];
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double* out1 = outputs[0];
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double* out2 = outputs[1];
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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double bezierRez = fmax(pow((1.0-SMO)*0.25,3.0)/overallscale,0.00001);
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int stepped = 999999; if (bezierRez > 0.000001) stepped = (int)(1.0/bezierRez); bezierRez = 1.0/stepped;
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double bezierTrim = 1.0-(bezierRez*((double)stepped/(stepped+1.0)));
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//manages the overall Bezier control smoothing system plugin-wide and feed all controls
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//into bezier[] as just 0-1 values, unprocessed. do it IN the control smoothing engine
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while (--sampleFrames >= 0)
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{
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double inputSampleL = *in1;
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double inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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inputSampleL = fmax(fmin(inputSampleL,1.1),-1.1);
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inputSampleR = fmax(fmin(inputSampleR,1.1),-1.1);
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long double X = inputSampleL; X *= X; //long double for even
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long double temp = inputSampleL * X; //the initial multiplies
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inputSampleL += temp*0.16666666666666666666666666666666666; temp *= X;
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inputSampleL += temp*0.075; temp *= X;
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inputSampleL += temp*0.04464285714285714285714285714285714; temp *= X;
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inputSampleL += temp*0.03038194444444444444444444444444444; temp *= X;
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inputSampleL += temp*0.02237215909090909090909090909090909; temp *= X;
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inputSampleL += temp*0.01735276442307692307692307692307692; temp *= X;
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inputSampleL += temp*0.01396484375; temp *= X;
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inputSampleL += temp*0.01155180089613970588235294117647058; temp *= X;
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inputSampleL += temp*0.00976160952919407894736842105263157; temp *= X;
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inputSampleL += temp*0.00839033580961681547619047619047619;
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X = inputSampleR; X *= X; //long double for even
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temp = inputSampleR * X; //the initial multiplies
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inputSampleR += temp*0.16666666666666666666666666666666666; temp *= X;
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inputSampleR += temp*0.075; temp *= X;
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inputSampleR += temp*0.04464285714285714285714285714285714; temp *= X;
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inputSampleR += temp*0.03038194444444444444444444444444444; temp *= X;
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inputSampleR += temp*0.02237215909090909090909090909090909; temp *= X;
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inputSampleR += temp*0.01735276442307692307692307692307692; temp *= X;
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inputSampleR += temp*0.01396484375; temp *= X;
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inputSampleR += temp*0.01155180089613970588235294117647058; temp *= X;
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inputSampleR += temp*0.00976160952919407894736842105263157; temp *= X;
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inputSampleR += temp*0.00839033580961681547619047619047619;
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//retain mantissa of a long double increasing power function
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//long double probably doesn't handle more than 36 digits or so
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//begin Bezier control smoothing engine
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bezier[bezier_cycle] += bezierRez;
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if (bezier[bezier_cycle] > 1.0) {bezier[bezier_cycle] = 0.0;
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bezier[bezierGainL_C] = bezier[bezierGainL_B]; bezier[bezierGainL_B] = bezier[bezierGainL_A];
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bezier[bezierGainR_C] = bezier[bezierGainR_B]; bezier[bezierGainR_B] = bezier[bezierGainR_A];
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//one of these bucket brigade lines for every smoothed control
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//begin expensive control calculations
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double gain = FAD*2.0;
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if (gain > 1.0) gain *= gain;
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if (gain < 1.0) gain = 1.0-pow(1.0-gain,2);
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gain *= 0.763932022500211;
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bezier[bezierGainL_A] = gain*sin(M_PI_2-(PAN*M_PI_2));
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bezier[bezierGainR_A] = gain*sin(PAN*M_PI_2);
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//end expensive control calculations
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} double lerp = bezier[bezier_cycle]*bezierTrim;
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bezier[bezierGainL_Out] = bezier[bezierGainL_B]+(bezier[bezierGainL_C]*(1.0-lerp)*(1.0-lerp))+(bezier[bezierGainL_B]*2.0*(1.0-lerp)*lerp)+(bezier[bezierGainL_A]*lerp*lerp);
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bezier[bezierGainR_Out] = bezier[bezierGainR_B]+(bezier[bezierGainR_C]*(1.0-lerp)*(1.0-lerp))+(bezier[bezierGainR_B]*2.0*(1.0-lerp)*lerp)+(bezier[bezierGainR_A]*lerp*lerp);
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//end Bezier control smoothing engine
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inputSampleL *= bezier[bezierGainL_Out];
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inputSampleR *= bezier[bezierGainR_Out];
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//begin 64 bit stereo floating point dither
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//int expon; frexp((double)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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//inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 3.553e-44l * pow(2,expon+62));
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//frexp((double)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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if (fpdL-fpdR < 1073741824 || fpdR-fpdL < 1073741824) {
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;}
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//inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 3.553e-44l * pow(2,expon+62));
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//end 64 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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in1++;
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in2++;
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out1++;
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out2++;
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}
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}
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