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airwindows/plugins/MacVST/Floor/source/FloorProc.cpp
Christopher Johnson f06250c082 Clarifying Licensing in boilerplate code generation
2022-11-21 09:20:21 -05:00

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/* ========================================
* Floor - Floor.h
* Copyright (c) 2016 airwindows, Airwindows uses the MIT license
* ======================================== */
#ifndef __Floor_H
#include "Floor.h"
#endif
void Floor::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 setting = pow(A,2);
double iirAmount = (setting/4.0)/overallscale;
double tight = -1.0;
double gaintrim = 1.0 + (setting/4.0);
double offset;
double lows;
double density = B;
double bridgerectifier;
double temp;
iirAmount += (iirAmount * tight * tight);
tight /= 3.0;
if (iirAmount <= 0.0) iirAmount = 0.0;
if (iirAmount > 1.0) iirAmount = 1.0;
double wet = C;
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;
//begin left channel
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleL)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleL))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1AL = (iirSample1AL * (1 - (offset * iirAmount))) + (inputSampleL * (offset * iirAmount));
lows = iirSample1AL;
inputSampleL -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleL += lows;
inputSampleL *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleL)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleL))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1BL = (iirSample1BL * (1 - (offset * iirAmount))) + (inputSampleL * (offset * iirAmount));
lows = iirSample1BL;
inputSampleL -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleL += lows;
inputSampleL *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleL)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleL))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1CL = (iirSample1CL * (1 - (offset * iirAmount))) + (inputSampleL * (offset * iirAmount));
lows = iirSample1CL;
inputSampleL -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleL += lows;
inputSampleL *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleL)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleL))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1DL = (iirSample1DL * (1 - (offset * iirAmount))) + (inputSampleL * (offset * iirAmount));
lows = iirSample1DL;
inputSampleL -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleL += lows;
inputSampleL *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleL)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleL))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1EL = (iirSample1EL * (1 - (offset * iirAmount))) + (inputSampleL * (offset * iirAmount));
lows = iirSample1EL;
inputSampleL -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleL += lows;
inputSampleL *= gaintrim;
//end left channel
//begin right channel
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleR)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleR))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1AR = (iirSample1AR * (1 - (offset * iirAmount))) + (inputSampleR * (offset * iirAmount));
lows = iirSample1AR;
inputSampleR -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleR += lows;
inputSampleR *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleR)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleR))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1BR = (iirSample1BR * (1 - (offset * iirAmount))) + (inputSampleR * (offset * iirAmount));
lows = iirSample1BR;
inputSampleR -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleR += lows;
inputSampleR *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleR)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleR))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1CR = (iirSample1CR * (1 - (offset * iirAmount))) + (inputSampleR * (offset * iirAmount));
lows = iirSample1CR;
inputSampleR -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleR += lows;
inputSampleR *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleR)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleR))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1DR = (iirSample1DR * (1 - (offset * iirAmount))) + (inputSampleR * (offset * iirAmount));
lows = iirSample1DR;
inputSampleR -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleR += lows;
inputSampleR *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleR)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleR))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1ER = (iirSample1ER * (1 - (offset * iirAmount))) + (inputSampleR * (offset * iirAmount));
lows = iirSample1ER;
inputSampleR -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleR += lows;
inputSampleR *= gaintrim;
//end right channel
if (inputSampleL > 1.0) inputSampleL = 1.0;
if (inputSampleL < -1.0) inputSampleL = -1.0;
bridgerectifier = fabs(inputSampleL)*1.57079633;
bridgerectifier = sin(bridgerectifier)*1.57079633;
bridgerectifier = (fabs(inputSampleL)*(1-density))+(bridgerectifier*density);
bridgerectifier = sin(bridgerectifier);
if (inputSampleL > 0) inputSampleL = (inputSampleL*(1-density))+(bridgerectifier*density);
else inputSampleL = (inputSampleL*(1-density))-(bridgerectifier*density);
//drive section, left
if (inputSampleR > 1.0) inputSampleR = 1.0;
if (inputSampleR < -1.0) inputSampleR = -1.0;
bridgerectifier = fabs(inputSampleR)*1.57079633;
bridgerectifier = sin(bridgerectifier)*1.57079633;
bridgerectifier = (fabs(inputSampleR)*(1-density))+(bridgerectifier*density);
bridgerectifier = sin(bridgerectifier);
if (inputSampleR > 0) inputSampleR = (inputSampleR*(1-density))+(bridgerectifier*density);
else inputSampleR = (inputSampleR*(1-density))-(bridgerectifier*density);
//drive section, right
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 Floor::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 setting = pow(A,2);
double iirAmount = (setting/4.0)/overallscale;
double tight = -1.0;
double gaintrim = 1.0 + (setting/4.0);
double offset;
double lows;
double density = B;
double bridgerectifier;
double temp;
iirAmount += (iirAmount * tight * tight);
tight /= 3.0;
if (iirAmount <= 0.0) iirAmount = 0.0;
if (iirAmount > 1.0) iirAmount = 1.0;
double wet = C;
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;
//begin left channel
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleL)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleL))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1AL = (iirSample1AL * (1 - (offset * iirAmount))) + (inputSampleL * (offset * iirAmount));
lows = iirSample1AL;
inputSampleL -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleL += lows;
inputSampleL *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleL)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleL))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1BL = (iirSample1BL * (1 - (offset * iirAmount))) + (inputSampleL * (offset * iirAmount));
lows = iirSample1BL;
inputSampleL -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleL += lows;
inputSampleL *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleL)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleL))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1CL = (iirSample1CL * (1 - (offset * iirAmount))) + (inputSampleL * (offset * iirAmount));
lows = iirSample1CL;
inputSampleL -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleL += lows;
inputSampleL *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleL)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleL))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1DL = (iirSample1DL * (1 - (offset * iirAmount))) + (inputSampleL * (offset * iirAmount));
lows = iirSample1DL;
inputSampleL -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleL += lows;
inputSampleL *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleL)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleL))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1EL = (iirSample1EL * (1 - (offset * iirAmount))) + (inputSampleL * (offset * iirAmount));
lows = iirSample1EL;
inputSampleL -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleL += lows;
inputSampleL *= gaintrim;
//end left channel
//begin right channel
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleR)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleR))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1AR = (iirSample1AR * (1 - (offset * iirAmount))) + (inputSampleR * (offset * iirAmount));
lows = iirSample1AR;
inputSampleR -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleR += lows;
inputSampleR *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleR)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleR))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1BR = (iirSample1BR * (1 - (offset * iirAmount))) + (inputSampleR * (offset * iirAmount));
lows = iirSample1BR;
inputSampleR -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleR += lows;
inputSampleR *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleR)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleR))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1CR = (iirSample1CR * (1 - (offset * iirAmount))) + (inputSampleR * (offset * iirAmount));
lows = iirSample1CR;
inputSampleR -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleR += lows;
inputSampleR *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleR)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleR))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1DR = (iirSample1DR * (1 - (offset * iirAmount))) + (inputSampleR * (offset * iirAmount));
lows = iirSample1DR;
inputSampleR -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleR += lows;
inputSampleR *= gaintrim;
if (tight > 0) offset = (1 - tight) + (fabs(inputSampleR)*tight);
else offset = (1 + tight) + ((1-fabs(inputSampleR))*tight);
if (offset < 0) offset = 0;
if (offset > 1) offset = 1;
iirSample1ER = (iirSample1ER * (1 - (offset * iirAmount))) + (inputSampleR * (offset * iirAmount));
lows = iirSample1ER;
inputSampleR -= lows;
temp = lows;
if (lows < 0) {lows = -sin(-lows*1.5707963267949);}
if (lows > 0) {lows = sin(lows*1.5707963267949);}
lows -= temp;
inputSampleR += lows;
inputSampleR *= gaintrim;
//end right channel
if (inputSampleL > 1.0) inputSampleL = 1.0;
if (inputSampleL < -1.0) inputSampleL = -1.0;
bridgerectifier = fabs(inputSampleL)*1.57079633;
bridgerectifier = sin(bridgerectifier)*1.57079633;
bridgerectifier = (fabs(inputSampleL)*(1-density))+(bridgerectifier*density);
bridgerectifier = sin(bridgerectifier);
if (inputSampleL > 0) inputSampleL = (inputSampleL*(1-density))+(bridgerectifier*density);
else inputSampleL = (inputSampleL*(1-density))-(bridgerectifier*density);
//drive section, left
if (inputSampleR > 1.0) inputSampleR = 1.0;
if (inputSampleR < -1.0) inputSampleR = -1.0;
bridgerectifier = fabs(inputSampleR)*1.57079633;
bridgerectifier = sin(bridgerectifier)*1.57079633;
bridgerectifier = (fabs(inputSampleR)*(1-density))+(bridgerectifier*density);
bridgerectifier = sin(bridgerectifier);
if (inputSampleR > 0) inputSampleR = (inputSampleR*(1-density))+(bridgerectifier*density);
else inputSampleR = (inputSampleR*(1-density))-(bridgerectifier*density);
//drive section, right
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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