/* ========================================
* Floor - Floor.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#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;
double dry = 1.0-wet;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double inputSampleR = *in2;
static int noisesourceL = 0;
static int noisesourceR = 850010;
int residue;
double applyresidue;
noisesourceL = noisesourceL % 1700021; noisesourceL++;
residue = noisesourceL * noisesourceL;
residue = residue % 170003; residue *= residue;
residue = residue % 17011; residue *= residue;
residue = residue % 1709; residue *= residue;
residue = residue % 173; residue *= residue;
residue = residue % 17;
applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSampleL += applyresidue;
if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) {
inputSampleL -= applyresidue;
}
noisesourceR = noisesourceR % 1700021; noisesourceR++;
residue = noisesourceR * noisesourceR;
residue = residue % 170003; residue *= residue;
residue = residue % 17011; residue *= residue;
residue = residue % 1709; residue *= residue;
residue = residue % 173; residue *= residue;
residue = residue % 17;
applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSampleR += applyresidue;
if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) {
inputSampleR -= applyresidue;
}
//for live air, we always apply the dither noise. Then, if our result is
//effectively digital black, we'll subtract it again. We want a 'air' hiss
long double drySampleL = inputSampleL;
long 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 * dry);
inputSampleR = (inputSampleR * wet) + (drySampleR * dry);
}
//stereo 32 bit dither, made small and tidy.
int expon; frexpf((float)inputSampleL, &expon);
long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
inputSampleL += (dither-fpNShapeL); fpNShapeL = dither;
frexpf((float)inputSampleR, &expon);
dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
inputSampleR += (dither-fpNShapeR); fpNShapeR = dither;
//end 32 bit 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;
double dry = 1.0-wet;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double inputSampleR = *in2;
static int noisesourceL = 0;
static int noisesourceR = 850010;
int residue;
double applyresidue;
noisesourceL = noisesourceL % 1700021; noisesourceL++;
residue = noisesourceL * noisesourceL;
residue = residue % 170003; residue *= residue;
residue = residue % 17011; residue *= residue;
residue = residue % 1709; residue *= residue;
residue = residue % 173; residue *= residue;
residue = residue % 17;
applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSampleL += applyresidue;
if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) {
inputSampleL -= applyresidue;
}
noisesourceR = noisesourceR % 1700021; noisesourceR++;
residue = noisesourceR * noisesourceR;
residue = residue % 170003; residue *= residue;
residue = residue % 17011; residue *= residue;
residue = residue % 1709; residue *= residue;
residue = residue % 173; residue *= residue;
residue = residue % 17;
applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSampleR += applyresidue;
if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) {
inputSampleR -= applyresidue;
}
//for live air, we always apply the dither noise. Then, if our result is
//effectively digital black, we'll subtract it again. We want a 'air' hiss
long double drySampleL = inputSampleL;
long 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 * dry);
inputSampleR = (inputSampleR * wet) + (drySampleR * dry);
}
//stereo 64 bit dither, made small and tidy.
int expon; frexp((double)inputSampleL, &expon);
long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
dither /= 536870912.0; //needs this to scale to 64 bit zone
inputSampleL += (dither-fpNShapeL); fpNShapeL = dither;
frexp((double)inputSampleR, &expon);
dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
dither /= 536870912.0; //needs this to scale to 64 bit zone
inputSampleR += (dither-fpNShapeR); fpNShapeR = dither;
//end 64 bit dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
