/* ========================================
* Pyewacket - Pyewacket.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __Pyewacket_H
#include "Pyewacket.h"
#endif
void Pyewacket::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();
long double fpOld = 0.618033988749894848204586; //golden ratio!
long double fpNew = 1.0 - fpOld;
long double inputSampleL;
long double inputSampleR;
long double drySampleL;
long double drySampleR;
double bridgerectifier;
double temprectifier;
double inputSense;
double inputGain = pow(10.0,((A*24.0)-12.0)/20.0);
double attack = ((B+0.5)*0.006)/overallscale;
double decay = ((B+0.01)*0.0004)/overallscale;
double outputGain = pow(10.0,((C*24.0)-12.0)/20.0);
double wet;
double maxblur;
double blurdry;
double out;
double dry;
while (--sampleFrames >= 0)
{
inputSampleL = *in1;
inputSampleR = *in2;
if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) {
static int noisesource = 0;
//this declares a variable before anything else is compiled. It won't keep assigning
//it to 0 for every sample, it's as if the declaration doesn't exist in this context,
//but it lets me add this denormalization fix in a single place rather than updating
//it in three different locations. The variable isn't thread-safe but this is only
//a random seed and we can share it with whatever.
noisesource = noisesource % 1700021; noisesource++;
int residue = noisesource * noisesource;
residue = residue % 170003; residue *= residue;
residue = residue % 17011; residue *= residue;
residue = residue % 1709; residue *= residue;
residue = residue % 173; residue *= residue;
residue = residue % 17;
double applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSampleL = applyresidue;
}
if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) {
static int noisesource = 0;
noisesource = noisesource % 1700021; noisesource++;
int residue = noisesource * noisesource;
residue = residue % 170003; residue *= residue;
residue = residue % 17011; residue *= residue;
residue = residue % 1709; residue *= residue;
residue = residue % 173; residue *= residue;
residue = residue % 17;
double applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSampleR = applyresidue;
//this denormalization routine produces a white noise at -300 dB which the noise
//shaping will interact with to produce a bipolar output, but the noise is actually
//all positive. That should stop any variables from going denormal, and the routine
//only kicks in if digital black is input. As a final touch, if you save to 24-bit
//the silence will return to being digital black again.
}
if (inputGain != 1.0) {
inputSampleL *= inputGain;
inputSampleR *= inputGain;
}
drySampleL = inputSampleL;
drySampleR = inputSampleR;
inputSense = fabs(inputSampleL);
if (fabs(inputSampleR) > inputSense)
inputSense = fabs(inputSampleR);
//we will take the greater of either channel and just use that, then apply the result
//to both stereo channels.
if (chase < inputSense) chase += attack;
if (chase > 1.0) chase = 1.0;
if (chase > inputSense) chase -= decay;
if (chase < 0.0) chase = 0.0;
//chase will be between 0 and ? (if input is super hot)
out = wet = chase;
if (wet > 1.0) wet = 1.0;
maxblur = wet * fpNew;
blurdry = 1.0 - maxblur;
//scaled back so that blur remains balance of both
if (out > fpOld) out = fpOld - (out - fpOld);
if (out < 0.0) out = 0.0;
dry = 1.0 - wet;
if (inputSampleL > 1.57079633) inputSampleL = 1.57079633;
if (inputSampleL < -1.57079633) inputSampleL = -1.57079633;
if (inputSampleR > 1.57079633) inputSampleR = 1.57079633;
if (inputSampleR < -1.57079633) inputSampleR = -1.57079633;
bridgerectifier = fabs(inputSampleL);
if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
temprectifier = 1-cos(bridgerectifier);
bridgerectifier = ((lastrectifierL*maxblur) + (temprectifier*blurdry));
lastrectifierL = temprectifier;
//starved version is also blurred by one sample
if (inputSampleL > 0) inputSampleL = (inputSampleL*dry)+(bridgerectifier*out);
else inputSampleL = (inputSampleL*dry)-(bridgerectifier*out);
bridgerectifier = fabs(inputSampleR);
if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
temprectifier = 1-cos(bridgerectifier);
bridgerectifier = ((lastrectifierR*maxblur) + (temprectifier*blurdry));
lastrectifierR = temprectifier;
//starved version is also blurred by one sample
if (inputSampleR > 0) inputSampleR = (inputSampleR*dry)+(bridgerectifier*out);
else inputSampleR = (inputSampleR*dry)-(bridgerectifier*out);
if (outputGain != 1.0) {
inputSampleL *= outputGain;
inputSampleR *= outputGain;
}
//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 Pyewacket::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();
long double fpOld = 0.618033988749894848204586; //golden ratio!
long double fpNew = 1.0 - fpOld;
long double inputSampleL;
long double inputSampleR;
long double drySampleL;
long double drySampleR;
double bridgerectifier;
double temprectifier;
double inputSense;
double inputGain = pow(10.0,((A*24.0)-12.0)/20.0);
double attack = ((B+0.5)*0.006)/overallscale;
double decay = ((B+0.01)*0.0004)/overallscale;
double outputGain = pow(10.0,((C*24.0)-12.0)/20.0);
double wet;
double maxblur;
double blurdry;
double out;
double dry;
while (--sampleFrames >= 0)
{
inputSampleL = *in1;
inputSampleR = *in2;
if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) {
static int noisesource = 0;
//this declares a variable before anything else is compiled. It won't keep assigning
//it to 0 for every sample, it's as if the declaration doesn't exist in this context,
//but it lets me add this denormalization fix in a single place rather than updating
//it in three different locations. The variable isn't thread-safe but this is only
//a random seed and we can share it with whatever.
noisesource = noisesource % 1700021; noisesource++;
int residue = noisesource * noisesource;
residue = residue % 170003; residue *= residue;
residue = residue % 17011; residue *= residue;
residue = residue % 1709; residue *= residue;
residue = residue % 173; residue *= residue;
residue = residue % 17;
double applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSampleL = applyresidue;
}
if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) {
static int noisesource = 0;
noisesource = noisesource % 1700021; noisesource++;
int residue = noisesource * noisesource;
residue = residue % 170003; residue *= residue;
residue = residue % 17011; residue *= residue;
residue = residue % 1709; residue *= residue;
residue = residue % 173; residue *= residue;
residue = residue % 17;
double applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSampleR = applyresidue;
//this denormalization routine produces a white noise at -300 dB which the noise
//shaping will interact with to produce a bipolar output, but the noise is actually
//all positive. That should stop any variables from going denormal, and the routine
//only kicks in if digital black is input. As a final touch, if you save to 24-bit
//the silence will return to being digital black again.
}
if (inputGain != 1.0) {
inputSampleL *= inputGain;
inputSampleR *= inputGain;
}
drySampleL = inputSampleL;
drySampleR = inputSampleR;
inputSense = fabs(inputSampleL);
if (fabs(inputSampleR) > inputSense)
inputSense = fabs(inputSampleR);
//we will take the greater of either channel and just use that, then apply the result
//to both stereo channels.
if (chase < inputSense) chase += attack;
if (chase > 1.0) chase = 1.0;
if (chase > inputSense) chase -= decay;
if (chase < 0.0) chase = 0.0;
//chase will be between 0 and ? (if input is super hot)
out = wet = chase;
if (wet > 1.0) wet = 1.0;
maxblur = wet * fpNew;
blurdry = 1.0 - maxblur;
//scaled back so that blur remains balance of both
if (out > fpOld) out = fpOld - (out - fpOld);
if (out < 0.0) out = 0.0;
dry = 1.0 - wet;
if (inputSampleL > 1.57079633) inputSampleL = 1.57079633;
if (inputSampleL < -1.57079633) inputSampleL = -1.57079633;
if (inputSampleR > 1.57079633) inputSampleR = 1.57079633;
if (inputSampleR < -1.57079633) inputSampleR = -1.57079633;
bridgerectifier = fabs(inputSampleL);
if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
temprectifier = 1-cos(bridgerectifier);
bridgerectifier = ((lastrectifierL*maxblur) + (temprectifier*blurdry));
lastrectifierL = temprectifier;
//starved version is also blurred by one sample
if (inputSampleL > 0) inputSampleL = (inputSampleL*dry)+(bridgerectifier*out);
else inputSampleL = (inputSampleL*dry)-(bridgerectifier*out);
bridgerectifier = fabs(inputSampleR);
if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
temprectifier = 1-cos(bridgerectifier);
bridgerectifier = ((lastrectifierR*maxblur) + (temprectifier*blurdry));
lastrectifierR = temprectifier;
//starved version is also blurred by one sample
if (inputSampleR > 0) inputSampleR = (inputSampleR*dry)+(bridgerectifier*out);
else inputSampleR = (inputSampleR*dry)-(bridgerectifier*out);
if (outputGain != 1.0) {
inputSampleL *= outputGain;
inputSampleR *= outputGain;
}
//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++;
}
}
