blob: f509c2188672977e27f4d6f9e659fcceda18624e (
plain) (
tree)
|
|
/* ========================================
* FathomFive - FathomFive.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __FathomFive_H
#include "FathomFive.h"
#endif
void FathomFive::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
double EQ = 0.01+((pow(C,4) / getSampleRate())*32000.0);
double dcblock = EQ / 320.0;
double wet = D*2.0;
double dry = 2.0 - wet;
double bridgerectifier;
double tempL;
double tempR;
double basstrim = (0.01/EQ)+1.0;
if (wet > 1.0) wet = 1.0;
if (dry > 1.0) dry = 1.0;
long double inputSampleL;
long double inputSampleR;
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 (inputSampleL > 0)
{if (WasNegativeL){SubOctaveL = !SubOctaveL;} WasNegativeL = false;}
else {WasNegativeL = true;}
if (inputSampleR > 0)
{if (WasNegativeR){SubOctaveR = !SubOctaveR;} WasNegativeR = false;}
else {WasNegativeR = true;}
iirSampleLD = (iirSampleLD * (1 - EQ)) + (inputSampleL * EQ);
bridgerectifier = fabs(iirSampleLD);
if (SubOctaveL) tempL = bridgerectifier*B;
else tempL = -bridgerectifier*B;
iirSampleRD = (iirSampleRD * (1 - EQ)) + (inputSampleR * EQ);
bridgerectifier = fabs(iirSampleRD);
if (SubOctaveR) tempR = bridgerectifier*B;
else tempR = -bridgerectifier*B;
tempL += (inputSampleL*A);
tempR += (inputSampleR*A);
iirSampleLA += (tempL * EQ);
iirSampleLA -= (iirSampleLA * iirSampleLA * iirSampleLA * EQ);
if (iirSampleLA > 0) iirSampleLA -= dcblock;
else iirSampleLA += dcblock;
tempL = iirSampleLA*basstrim;
iirSampleRA += (tempR * EQ);
iirSampleRA -= (iirSampleRA * iirSampleRA * iirSampleRA * EQ);
if (iirSampleRA > 0) iirSampleRA -= dcblock;
else iirSampleRA += dcblock;
tempR = iirSampleRA*basstrim;
iirSampleLB = (iirSampleLB * (1 - EQ)) + (tempL * EQ);
tempL = iirSampleLB;
iirSampleRB = (iirSampleRB * (1 - EQ)) + (tempR * EQ);
tempR = iirSampleRB;
iirSampleLC = (iirSampleLC * (1 - EQ)) + (tempL * EQ);
tempL = iirSampleLC;
iirSampleRC = (iirSampleRC * (1 - EQ)) + (tempR * EQ);
tempR = iirSampleRC;
inputSampleL = (inputSampleL*dry) + (tempL*wet);
inputSampleR = (inputSampleR*dry) + (tempR*wet);
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
void FathomFive::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
double EQ = 0.01+((pow(C,4) / getSampleRate())*32000.0);
double dcblock = EQ / 320.0;
double wet = D*2.0;
double dry = 2.0 - wet;
double bridgerectifier;
double tempL;
double tempR;
double basstrim = (0.01/EQ)+1.0;
if (wet > 1.0) wet = 1.0;
if (dry > 1.0) dry = 1.0;
long double inputSampleL;
long double inputSampleR;
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 (inputSampleL > 0)
{if (WasNegativeL){SubOctaveL = !SubOctaveL;} WasNegativeL = false;}
else {WasNegativeL = true;}
if (inputSampleR > 0)
{if (WasNegativeR){SubOctaveR = !SubOctaveR;} WasNegativeR = false;}
else {WasNegativeR = true;}
iirSampleLD = (iirSampleLD * (1 - EQ)) + (inputSampleL * EQ);
bridgerectifier = fabs(iirSampleLD);
if (SubOctaveL) tempL = bridgerectifier*B;
else tempL = -bridgerectifier*B;
iirSampleRD = (iirSampleRD * (1 - EQ)) + (inputSampleR * EQ);
bridgerectifier = fabs(iirSampleRD);
if (SubOctaveR) tempR = bridgerectifier*B;
else tempR = -bridgerectifier*B;
tempL += (inputSampleL*A);
tempR += (inputSampleR*A);
iirSampleLA += (tempL * EQ);
iirSampleLA -= (iirSampleLA * iirSampleLA * iirSampleLA * EQ);
if (iirSampleLA > 0) iirSampleLA -= dcblock;
else iirSampleLA += dcblock;
tempL = iirSampleLA*basstrim;
iirSampleRA += (tempR * EQ);
iirSampleRA -= (iirSampleRA * iirSampleRA * iirSampleRA * EQ);
if (iirSampleRA > 0) iirSampleRA -= dcblock;
else iirSampleRA += dcblock;
tempR = iirSampleRA*basstrim;
iirSampleLB = (iirSampleLB * (1 - EQ)) + (tempL * EQ);
tempL = iirSampleLB;
iirSampleRB = (iirSampleRB * (1 - EQ)) + (tempR * EQ);
tempR = iirSampleRB;
iirSampleLC = (iirSampleLC * (1 - EQ)) + (tempL * EQ);
tempL = iirSampleLC;
iirSampleRC = (iirSampleRC * (1 - EQ)) + (tempR * EQ);
tempR = iirSampleRC;
inputSampleL = (inputSampleL*dry) + (tempL*wet);
inputSampleR = (inputSampleR*dry) + (tempR*wet);
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
|
