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/* ========================================
* Gringer - Gringer.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __Gringer_H
#include "Gringer.h"
#endif
void Gringer::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();
inbandL[0] = 0.025/overallscale;
outbandL[0] = 0.025/overallscale;
inbandL[1] = 0.001;
outbandL[1] = 0.001;
inbandR[0] = 0.025/overallscale;
outbandR[0] = 0.025/overallscale;
inbandR[1] = 0.001;
outbandR[1] = 0.001;
//hardwired for wide bandpass around the rectification
double K = tan(M_PI * inbandL[0]);
double norm = 1.0 / (1.0 + K / inbandL[1] + K * K);
inbandL[2] = K / inbandL[1] * norm;
inbandL[4] = -inbandL[2];
inbandL[5] = 2.0 * (K * K - 1.0) * norm;
inbandL[6] = (1.0 - K / inbandL[1] + K * K) * norm;
K = tan(M_PI * outbandL[0]);
norm = 1.0 / (1.0 + K / outbandL[1] + K * K);
outbandL[2] = K / outbandL[1] * norm;
outbandL[4] = -outbandL[2];
outbandL[5] = 2.0 * (K * K - 1.0) * norm;
outbandL[6] = (1.0 - K / outbandL[1] + K * K) * norm;
K = tan(M_PI * inbandR[0]);
norm = 1.0 / (1.0 + K / inbandR[1] + K * K);
inbandR[2] = K / inbandR[1] * norm;
inbandR[4] = -inbandR[2];
inbandR[5] = 2.0 * (K * K - 1.0) * norm;
inbandR[6] = (1.0 - K / inbandR[1] + K * K) * norm;
K = tan(M_PI * outbandR[0]);
norm = 1.0 / (1.0 + K / outbandR[1] + K * K);
outbandR[2] = K / outbandR[1] * norm;
outbandR[4] = -outbandR[2];
outbandR[5] = 2.0 * (K * K - 1.0) * norm;
outbandR[6] = (1.0 - K / outbandR[1] + K * K) * norm;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double inputSampleR = *in2;
if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpd * 1.18e-37;
if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpd * 1.18e-37;
inputSampleL = sin(inputSampleL);
inputSampleR = sin(inputSampleR);
//encode Console5: good cleanness
long double tempSample = (inputSampleL * inbandL[2]) + inbandL[7];
inbandL[7] = -(tempSample * inbandL[5]) + inbandL[8];
inbandL[8] = (inputSampleL * inbandL[4]) - (tempSample * inbandL[6]);
inputSampleL = fabs(tempSample);
//this is all you gotta do to make the Green Ringer fullwave rectification effect
//the rest is about making it work within a DAW context w. filtering and such
tempSample = (inputSampleR * inbandR[2]) + inbandR[7];
inbandR[7] = -(tempSample * inbandR[5]) + inbandR[8];
inbandR[8] = (inputSampleR * inbandR[4]) - (tempSample * inbandR[6]);
inputSampleR = fabs(tempSample);
//this is all you gotta do to make the Green Ringer fullwave rectification effect
//the rest is about making it work within a DAW context w. filtering and such
tempSample = (inputSampleL * outbandL[2]) + outbandL[7];
outbandL[7] = -(tempSample * outbandL[5]) + outbandL[8];
outbandL[8] = (inputSampleL * outbandL[4]) - (tempSample * outbandL[6]);
inputSampleL = tempSample;
tempSample = (inputSampleR * outbandR[2]) + outbandR[7];
outbandR[7] = -(tempSample * outbandR[5]) + outbandR[8];
outbandR[8] = (inputSampleR * outbandR[4]) - (tempSample * outbandR[6]);
inputSampleR = tempSample;
if (inputSampleL > 1.0) inputSampleL = 1.0;
if (inputSampleL < -1.0) inputSampleL = -1.0;
//without this, you can get a NaN condition where it spits out DC offset at full blast!
inputSampleL = asin(inputSampleL);
//amplitude aspect
if (inputSampleR > 1.0) inputSampleR = 1.0;
if (inputSampleR < -1.0) inputSampleR = -1.0;
//without this, you can get a NaN condition where it spits out DC offset at full blast!
inputSampleR = asin(inputSampleR);
//amplitude aspect
//begin 32 bit stereo floating point dither
int expon; frexpf((float)inputSampleL, &expon);
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
frexpf((float)inputSampleR, &expon);
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
inputSampleR += ((double(fpd)-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 Gringer::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();
inbandL[0] = 0.025/overallscale;
outbandL[0] = 0.025/overallscale;
inbandL[1] = 0.001;
outbandL[1] = 0.001;
inbandR[0] = 0.025/overallscale;
outbandR[0] = 0.025/overallscale;
inbandR[1] = 0.001;
outbandR[1] = 0.001;
//hardwired for wide bandpass around the rectification
double K = tan(M_PI * inbandL[0]);
double norm = 1.0 / (1.0 + K / inbandL[1] + K * K);
inbandL[2] = K / inbandL[1] * norm;
inbandL[4] = -inbandL[2];
inbandL[5] = 2.0 * (K * K - 1.0) * norm;
inbandL[6] = (1.0 - K / inbandL[1] + K * K) * norm;
K = tan(M_PI * outbandL[0]);
norm = 1.0 / (1.0 + K / outbandL[1] + K * K);
outbandL[2] = K / outbandL[1] * norm;
outbandL[4] = -outbandL[2];
outbandL[5] = 2.0 * (K * K - 1.0) * norm;
outbandL[6] = (1.0 - K / outbandL[1] + K * K) * norm;
K = tan(M_PI * inbandR[0]);
norm = 1.0 / (1.0 + K / inbandR[1] + K * K);
inbandR[2] = K / inbandR[1] * norm;
inbandR[4] = -inbandR[2];
inbandR[5] = 2.0 * (K * K - 1.0) * norm;
inbandR[6] = (1.0 - K / inbandR[1] + K * K) * norm;
K = tan(M_PI * outbandR[0]);
norm = 1.0 / (1.0 + K / outbandR[1] + K * K);
outbandR[2] = K / outbandR[1] * norm;
outbandR[4] = -outbandR[2];
outbandR[5] = 2.0 * (K * K - 1.0) * norm;
outbandR[6] = (1.0 - K / outbandR[1] + K * K) * norm;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double inputSampleR = *in2;
if (fabs(inputSampleL)<1.18e-43) inputSampleL = fpd * 1.18e-43;
if (fabs(inputSampleR)<1.18e-43) inputSampleR = fpd * 1.18e-43;
inputSampleL = sin(inputSampleL);
inputSampleR = sin(inputSampleR);
//encode Console5: good cleanness
long double tempSample = (inputSampleL * inbandL[2]) + inbandL[7];
inbandL[7] = -(tempSample * inbandL[5]) + inbandL[8];
inbandL[8] = (inputSampleL * inbandL[4]) - (tempSample * inbandL[6]);
inputSampleL = fabs(tempSample);
//this is all you gotta do to make the Green Ringer fullwave rectification effect
//the rest is about making it work within a DAW context w. filtering and such
tempSample = (inputSampleR * inbandR[2]) + inbandR[7];
inbandR[7] = -(tempSample * inbandR[5]) + inbandR[8];
inbandR[8] = (inputSampleR * inbandR[4]) - (tempSample * inbandR[6]);
inputSampleR = fabs(tempSample);
//this is all you gotta do to make the Green Ringer fullwave rectification effect
//the rest is about making it work within a DAW context w. filtering and such
tempSample = (inputSampleL * outbandL[2]) + outbandL[7];
outbandL[7] = -(tempSample * outbandL[5]) + outbandL[8];
outbandL[8] = (inputSampleL * outbandL[4]) - (tempSample * outbandL[6]);
inputSampleL = tempSample;
tempSample = (inputSampleR * outbandR[2]) + outbandR[7];
outbandR[7] = -(tempSample * outbandR[5]) + outbandR[8];
outbandR[8] = (inputSampleR * outbandR[4]) - (tempSample * outbandR[6]);
inputSampleR = tempSample;
if (inputSampleL > 1.0) inputSampleL = 1.0;
if (inputSampleL < -1.0) inputSampleL = -1.0;
//without this, you can get a NaN condition where it spits out DC offset at full blast!
inputSampleL = asin(inputSampleL);
//amplitude aspect
if (inputSampleR > 1.0) inputSampleR = 1.0;
if (inputSampleR < -1.0) inputSampleR = -1.0;
//without this, you can get a NaN condition where it spits out DC offset at full blast!
inputSampleR = asin(inputSampleR);
//amplitude aspect
//begin 64 bit stereo floating point dither
int expon; frexp((double)inputSampleL, &expon);
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
frexp((double)inputSampleR, &expon);
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
inputSampleR += ((double(fpd)-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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