/* ========================================
* SingleEndedTriode - SingleEndedTriode.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __SingleEndedTriode_H
#include "SingleEndedTriode.h"
#endif
void SingleEndedTriode::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
double intensity = pow(A,2)*8.0;
double triode = intensity;
intensity +=0.001;
double softcrossover = pow(B,3)/8.0;
double hardcrossover = pow(C,7)/8.0;
double wet = D;
double dry = 1.0 - wet;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double 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.
}
double drySampleL = inputSampleL;
double drySampleR = inputSampleR;
if (triode > 0.0)
{
inputSampleL *= intensity;
inputSampleR *= intensity;
inputSampleL -= 0.5;
inputSampleR -= 0.5;
long double bridgerectifier = fabs(inputSampleL);
if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
bridgerectifier = sin(bridgerectifier);
if (inputSampleL > 0) inputSampleL = bridgerectifier;
else inputSampleL = -bridgerectifier;
bridgerectifier = fabs(inputSampleR);
if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
bridgerectifier = sin(bridgerectifier);
if (inputSampleR > 0) inputSampleR = bridgerectifier;
else inputSampleR = -bridgerectifier;
inputSampleL += postsine;
inputSampleR += postsine;
inputSampleL /= intensity;
inputSampleR /= intensity;
}
if (softcrossover > 0.0)
{
long double bridgerectifier = fabs(inputSampleL);
if (bridgerectifier > 0.0) bridgerectifier -= (softcrossover*(bridgerectifier+sqrt(bridgerectifier)));
if (bridgerectifier < 0.0) bridgerectifier = 0;
if (inputSampleL > 0.0) inputSampleL = bridgerectifier;
else inputSampleL = -bridgerectifier;
bridgerectifier = fabs(inputSampleR);
if (bridgerectifier > 0.0) bridgerectifier -= (softcrossover*(bridgerectifier+sqrt(bridgerectifier)));
if (bridgerectifier < 0.0) bridgerectifier = 0;
if (inputSampleR > 0.0) inputSampleR = bridgerectifier;
else inputSampleR = -bridgerectifier;
}
if (hardcrossover > 0.0)
{
long double bridgerectifier = fabs(inputSampleL);
bridgerectifier -= hardcrossover;
if (bridgerectifier < 0.0) bridgerectifier = 0.0;
if (inputSampleL > 0.0) inputSampleL = bridgerectifier;
else inputSampleL = -bridgerectifier;
bridgerectifier = fabs(inputSampleR);
bridgerectifier -= hardcrossover;
if (bridgerectifier < 0.0) bridgerectifier = 0.0;
if (inputSampleR > 0.0) inputSampleR = bridgerectifier;
else inputSampleR = -bridgerectifier;
}
if (wet !=1.0) {
inputSampleL = (inputSampleL * wet) + (drySampleL * dry);
inputSampleR = (inputSampleR * wet) + (drySampleR * dry);
}
//noise shaping to 32-bit floating point
float fpTemp = inputSampleL;
fpNShapeL += (inputSampleL-fpTemp);
inputSampleL += fpNShapeL;
//if this confuses you look at the wordlength for fpTemp :)
fpTemp = inputSampleR;
fpNShapeR += (inputSampleR-fpTemp);
inputSampleR += fpNShapeR;
//for deeper space and warmth, we try a non-oscillating noise shaping
//that is kind of ruthless: it will forever retain the rounding errors
//except we'll dial it back a hair at the end of every buffer processed
//end noise shaping on 32 bit output
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
fpNShapeL *= 0.999999;
fpNShapeR *= 0.999999;
//we will just delicately dial back the FP noise shaping, not even every sample
//this is a good place to put subtle 'no runaway' calculations, though bear in mind
//that it will be called more often when you use shorter sample buffers in the DAW.
//So, very low latency operation will call these calculations more often.
}
void SingleEndedTriode::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
double intensity = pow(A,2)*8.0;
double triode = intensity;
intensity +=0.001;
double softcrossover = pow(B,3)/8.0;
double hardcrossover = pow(C,7)/8.0;
double wet = D;
double dry = 1.0 - wet;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double 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.
}
double drySampleL = inputSampleL;
double drySampleR = inputSampleR;
if (triode > 0.0)
{
inputSampleL *= intensity;
inputSampleR *= intensity;
inputSampleL -= 0.5;
inputSampleR -= 0.5;
long double bridgerectifier = fabs(inputSampleL);
if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
bridgerectifier = sin(bridgerectifier);
if (inputSampleL > 0) inputSampleL = bridgerectifier;
else inputSampleL = -bridgerectifier;
bridgerectifier = fabs(inputSampleR);
if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
bridgerectifier = sin(bridgerectifier);
if (inputSampleR > 0) inputSampleR = bridgerectifier;
else inputSampleR = -bridgerectifier;
inputSampleL += postsine;
inputSampleR += postsine;
inputSampleL /= intensity;
inputSampleR /= intensity;
}
if (softcrossover > 0.0)
{
long double bridgerectifier = fabs(inputSampleL);
if (bridgerectifier > 0.0) bridgerectifier -= (softcrossover*(bridgerectifier+sqrt(bridgerectifier)));
if (bridgerectifier < 0.0) bridgerectifier = 0;
if (inputSampleL > 0.0) inputSampleL = bridgerectifier;
else inputSampleL = -bridgerectifier;
bridgerectifier = fabs(inputSampleR);
if (bridgerectifier > 0.0) bridgerectifier -= (softcrossover*(bridgerectifier+sqrt(bridgerectifier)));
if (bridgerectifier < 0.0) bridgerectifier = 0;
if (inputSampleR > 0.0) inputSampleR = bridgerectifier;
else inputSampleR = -bridgerectifier;
}
if (hardcrossover > 0.0)
{
long double bridgerectifier = fabs(inputSampleL);
bridgerectifier -= hardcrossover;
if (bridgerectifier < 0.0) bridgerectifier = 0.0;
if (inputSampleL > 0.0) inputSampleL = bridgerectifier;
else inputSampleL = -bridgerectifier;
bridgerectifier = fabs(inputSampleR);
bridgerectifier -= hardcrossover;
if (bridgerectifier < 0.0) bridgerectifier = 0.0;
if (inputSampleR > 0.0) inputSampleR = bridgerectifier;
else inputSampleR = -bridgerectifier;
}
if (wet !=1.0) {
inputSampleL = (inputSampleL * wet) + (drySampleL * dry);
inputSampleR = (inputSampleR * wet) + (drySampleR * dry);
}
//noise shaping to 64-bit floating point
double fpTemp = inputSampleL;
fpNShapeL += (inputSampleL-fpTemp);
inputSampleL += fpNShapeL;
//if this confuses you look at the wordlength for fpTemp :)
fpTemp = inputSampleR;
fpNShapeR += (inputSampleR-fpTemp);
inputSampleR += fpNShapeR;
//for deeper space and warmth, we try a non-oscillating noise shaping
//that is kind of ruthless: it will forever retain the rounding errors
//except we'll dial it back a hair at the end of every buffer processed
//end noise shaping on 64 bit output
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
fpNShapeL *= 0.999999;
fpNShapeR *= 0.999999;
//we will just delicately dial back the FP noise shaping, not even every sample
//this is a good place to put subtle 'no runaway' calculations, though bear in mind
//that it will be called more often when you use shorter sample buffers in the DAW.
//So, very low latency operation will call these calculations more often.
}