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/* ========================================
* AtmosphereChannel - AtmosphereChannel.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __AtmosphereChannel_H
#include "AtmosphereChannel.h"
#endif
void AtmosphereChannel::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 drySampleL;
double drySampleR;
long double inputSampleL;
long double inputSampleR;
long double clamp;
double inputgain = A;
if (settingchase != inputgain) {
chasespeed *= 2.0;
settingchase = inputgain;
}
if (chasespeed > 2500.0) chasespeed = 2500.0;
if (gainchase < 0.0) gainchase = inputgain;
thresholdA = 0.618033988749894 / overallscale;
thresholdB = 0.679837387624884 / overallscale;
thresholdC = 0.747821126387373 / overallscale;
thresholdD = 0.82260323902611 / overallscale;
thresholdE = 0.904863562928721 / overallscale;
thresholdF = 0.995349919221593 / overallscale;
thresholdG = 1.094884911143752 / overallscale;
thresholdH = 1.204373402258128 / overallscale;
thresholdI = 1.32481074248394 / overallscale;
thresholdJ = 1.457291816732335 / overallscale;
thresholdK = 1.603020998405568 / overallscale;
thresholdL = 1.763323098246125 / overallscale;
thresholdM = 1.939655408070737 / overallscale;
while (--sampleFrames >= 0)
{
inputSampleL = *in1;
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
chasespeed *= 0.9999;
chasespeed -= 0.01;
if (chasespeed < 350.0) chasespeed = 350.0;
//we have our chase speed compensated for recent fader activity
gainchase = (((gainchase*chasespeed)+inputgain)/(chasespeed+1.0));
//gainchase is chasing the target, as a simple multiply gain factor
if (1.0 != gainchase) {
inputSampleL *= gainchase;
inputSampleR *= gainchase;
}
//done with trim control
drySampleL = inputSampleL;
drySampleR = inputSampleR;
inputSampleL = sin(inputSampleL);
inputSampleR = sin(inputSampleR);
//amplitude aspect
clamp = inputSampleL - lastSampleAL;
if (clamp > thresholdA) inputSampleL = lastSampleAL + thresholdA;
if (-clamp > thresholdA) inputSampleL = lastSampleAL - thresholdA;
clamp = inputSampleL - lastSampleBL;
if (clamp > thresholdB) inputSampleL = lastSampleBL + thresholdB;
if (-clamp > thresholdB) inputSampleL = lastSampleBL - thresholdB;
clamp = inputSampleL - lastSampleCL;
if (clamp > thresholdC) inputSampleL = lastSampleCL + thresholdC;
if (-clamp > thresholdC) inputSampleL = lastSampleCL - thresholdC;
clamp = inputSampleL - lastSampleDL;
if (clamp > thresholdD) inputSampleL = lastSampleDL + thresholdD;
if (-clamp > thresholdD) inputSampleL = lastSampleDL - thresholdD;
clamp = inputSampleL - lastSampleEL;
if (clamp > thresholdE) inputSampleL = lastSampleEL + thresholdE;
if (-clamp > thresholdE) inputSampleL = lastSampleEL - thresholdE;
clamp = inputSampleL - lastSampleFL;
if (clamp > thresholdF) inputSampleL = lastSampleFL + thresholdF;
if (-clamp > thresholdF) inputSampleL = lastSampleFL - thresholdF;
clamp = inputSampleL - lastSampleGL;
if (clamp > thresholdG) inputSampleL = lastSampleGL + thresholdG;
if (-clamp > thresholdG) inputSampleL = lastSampleGL - thresholdG;
clamp = inputSampleL - lastSampleHL;
if (clamp > thresholdH) inputSampleL = lastSampleHL + thresholdH;
if (-clamp > thresholdH) inputSampleL = lastSampleHL - thresholdH;
clamp = inputSampleL - lastSampleIL;
if (clamp > thresholdI) inputSampleL = lastSampleIL + thresholdI;
if (-clamp > thresholdI) inputSampleL = lastSampleIL - thresholdI;
clamp = inputSampleL - lastSampleJL;
if (clamp > thresholdJ) inputSampleL = lastSampleJL + thresholdJ;
if (-clamp > thresholdJ) inputSampleL = lastSampleJL - thresholdJ;
clamp = inputSampleL - lastSampleKL;
if (clamp > thresholdK) inputSampleL = lastSampleKL + thresholdK;
if (-clamp > thresholdK) inputSampleL = lastSampleKL - thresholdK;
clamp = inputSampleL - lastSampleLL;
if (clamp > thresholdL) inputSampleL = lastSampleLL + thresholdL;
if (-clamp > thresholdL) inputSampleL = lastSampleLL - thresholdL;
clamp = inputSampleL - lastSampleML;
if (clamp > thresholdM) inputSampleL = lastSampleML + thresholdM;
if (-clamp > thresholdM) inputSampleL = lastSampleML - thresholdM;
lastSampleML = lastSampleLL;
lastSampleLL = lastSampleKL;
lastSampleKL = lastSampleJL;
lastSampleJL = lastSampleIL;
lastSampleIL = lastSampleHL;
lastSampleHL = lastSampleGL;
lastSampleGL = lastSampleFL;
lastSampleFL = lastSampleEL;
lastSampleEL = lastSampleDL;
lastSampleDL = lastSampleCL;
lastSampleCL = lastSampleBL;
lastSampleBL = lastSampleAL;
lastSampleAL = drySampleL;
//store the raw L input sample again for use next time
clamp = inputSampleR - lastSampleAR;
if (clamp > thresholdA) inputSampleR = lastSampleAR + thresholdA;
if (-clamp > thresholdA) inputSampleR = lastSampleAR - thresholdA;
clamp = inputSampleR - lastSampleBR;
if (clamp > thresholdB) inputSampleR = lastSampleBR + thresholdB;
if (-clamp > thresholdB) inputSampleR = lastSampleBR - thresholdB;
clamp = inputSampleR - lastSampleCR;
if (clamp > thresholdC) inputSampleR = lastSampleCR + thresholdC;
if (-clamp > thresholdC) inputSampleR = lastSampleCR - thresholdC;
clamp = inputSampleR - lastSampleDR;
if (clamp > thresholdD) inputSampleR = lastSampleDR + thresholdD;
if (-clamp > thresholdD) inputSampleR = lastSampleDR - thresholdD;
clamp = inputSampleR - lastSampleER;
if (clamp > thresholdE) inputSampleR = lastSampleER + thresholdE;
if (-clamp > thresholdE) inputSampleR = lastSampleER - thresholdE;
clamp = inputSampleR - lastSampleFR;
if (clamp > thresholdF) inputSampleR = lastSampleFR + thresholdF;
if (-clamp > thresholdF) inputSampleR = lastSampleFR - thresholdF;
clamp = inputSampleR - lastSampleGR;
if (clamp > thresholdG) inputSampleR = lastSampleGR + thresholdG;
if (-clamp > thresholdG) inputSampleR = lastSampleGR - thresholdG;
clamp = inputSampleR - lastSampleHR;
if (clamp > thresholdH) inputSampleR = lastSampleHR + thresholdH;
if (-clamp > thresholdH) inputSampleR = lastSampleHR - thresholdH;
clamp = inputSampleR - lastSampleIR;
if (clamp > thresholdI) inputSampleR = lastSampleIR + thresholdI;
if (-clamp > thresholdI) inputSampleR = lastSampleIR - thresholdI;
clamp = inputSampleR - lastSampleJR;
if (clamp > thresholdJ) inputSampleR = lastSampleJR + thresholdJ;
if (-clamp > thresholdJ) inputSampleR = lastSampleJR - thresholdJ;
clamp = inputSampleR - lastSampleKR;
if (clamp > thresholdK) inputSampleR = lastSampleKR + thresholdK;
if (-clamp > thresholdK) inputSampleR = lastSampleKR - thresholdK;
clamp = inputSampleR - lastSampleLR;
if (clamp > thresholdL) inputSampleR = lastSampleLR + thresholdL;
if (-clamp > thresholdL) inputSampleR = lastSampleLR - thresholdL;
clamp = inputSampleR - lastSampleMR;
if (clamp > thresholdM) inputSampleR = lastSampleMR + thresholdM;
if (-clamp > thresholdM) inputSampleR = lastSampleMR - thresholdM;
lastSampleMR = lastSampleLR;
lastSampleLR = lastSampleKR;
lastSampleKR = lastSampleJR;
lastSampleJR = lastSampleIR;
lastSampleIR = lastSampleHR;
lastSampleHR = lastSampleGR;
lastSampleGR = lastSampleFR;
lastSampleFR = lastSampleER;
lastSampleER = lastSampleDR;
lastSampleDR = lastSampleCR;
lastSampleCR = lastSampleBR;
lastSampleBR = lastSampleAR;
lastSampleAR = drySampleR;
//store the raw R input sample again for use next time
//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 AtmosphereChannel::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 drySampleL;
double drySampleR;
long double inputSampleL;
long double inputSampleR;
long double clamp;
double inputgain = A;
if (settingchase != inputgain) {
chasespeed *= 2.0;
settingchase = inputgain;
}
if (chasespeed > 2500.0) chasespeed = 2500.0;
if (gainchase < 0.0) gainchase = inputgain;
thresholdA = 0.618033988749894 / overallscale;
thresholdB = 0.679837387624884 / overallscale;
thresholdC = 0.747821126387373 / overallscale;
thresholdD = 0.82260323902611 / overallscale;
thresholdE = 0.904863562928721 / overallscale;
thresholdF = 0.995349919221593 / overallscale;
thresholdG = 1.094884911143752 / overallscale;
thresholdH = 1.204373402258128 / overallscale;
thresholdI = 1.32481074248394 / overallscale;
thresholdJ = 1.457291816732335 / overallscale;
thresholdK = 1.603020998405568 / overallscale;
thresholdL = 1.763323098246125 / overallscale;
thresholdM = 1.939655408070737 / overallscale;
while (--sampleFrames >= 0)
{
inputSampleL = *in1;
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
chasespeed *= 0.9999;
chasespeed -= 0.01;
if (chasespeed < 350.0) chasespeed = 350.0;
//we have our chase speed compensated for recent fader activity
gainchase = (((gainchase*chasespeed)+inputgain)/(chasespeed+1.0));
//gainchase is chasing the target, as a simple multiply gain factor
if (1.0 != gainchase) {
inputSampleL *= gainchase;
inputSampleR *= gainchase;
}
//done with trim control
drySampleL = inputSampleL;
drySampleR = inputSampleR;
inputSampleL = sin(inputSampleL);
inputSampleR = sin(inputSampleR);
//amplitude aspect
clamp = inputSampleL - lastSampleAL;
if (clamp > thresholdA) inputSampleL = lastSampleAL + thresholdA;
if (-clamp > thresholdA) inputSampleL = lastSampleAL - thresholdA;
clamp = inputSampleL - lastSampleBL;
if (clamp > thresholdB) inputSampleL = lastSampleBL + thresholdB;
if (-clamp > thresholdB) inputSampleL = lastSampleBL - thresholdB;
clamp = inputSampleL - lastSampleCL;
if (clamp > thresholdC) inputSampleL = lastSampleCL + thresholdC;
if (-clamp > thresholdC) inputSampleL = lastSampleCL - thresholdC;
clamp = inputSampleL - lastSampleDL;
if (clamp > thresholdD) inputSampleL = lastSampleDL + thresholdD;
if (-clamp > thresholdD) inputSampleL = lastSampleDL - thresholdD;
clamp = inputSampleL - lastSampleEL;
if (clamp > thresholdE) inputSampleL = lastSampleEL + thresholdE;
if (-clamp > thresholdE) inputSampleL = lastSampleEL - thresholdE;
clamp = inputSampleL - lastSampleFL;
if (clamp > thresholdF) inputSampleL = lastSampleFL + thresholdF;
if (-clamp > thresholdF) inputSampleL = lastSampleFL - thresholdF;
clamp = inputSampleL - lastSampleGL;
if (clamp > thresholdG) inputSampleL = lastSampleGL + thresholdG;
if (-clamp > thresholdG) inputSampleL = lastSampleGL - thresholdG;
clamp = inputSampleL - lastSampleHL;
if (clamp > thresholdH) inputSampleL = lastSampleHL + thresholdH;
if (-clamp > thresholdH) inputSampleL = lastSampleHL - thresholdH;
clamp = inputSampleL - lastSampleIL;
if (clamp > thresholdI) inputSampleL = lastSampleIL + thresholdI;
if (-clamp > thresholdI) inputSampleL = lastSampleIL - thresholdI;
clamp = inputSampleL - lastSampleJL;
if (clamp > thresholdJ) inputSampleL = lastSampleJL + thresholdJ;
if (-clamp > thresholdJ) inputSampleL = lastSampleJL - thresholdJ;
clamp = inputSampleL - lastSampleKL;
if (clamp > thresholdK) inputSampleL = lastSampleKL + thresholdK;
if (-clamp > thresholdK) inputSampleL = lastSampleKL - thresholdK;
clamp = inputSampleL - lastSampleLL;
if (clamp > thresholdL) inputSampleL = lastSampleLL + thresholdL;
if (-clamp > thresholdL) inputSampleL = lastSampleLL - thresholdL;
clamp = inputSampleL - lastSampleML;
if (clamp > thresholdM) inputSampleL = lastSampleML + thresholdM;
if (-clamp > thresholdM) inputSampleL = lastSampleML - thresholdM;
lastSampleML = lastSampleLL;
lastSampleLL = lastSampleKL;
lastSampleKL = lastSampleJL;
lastSampleJL = lastSampleIL;
lastSampleIL = lastSampleHL;
lastSampleHL = lastSampleGL;
lastSampleGL = lastSampleFL;
lastSampleFL = lastSampleEL;
lastSampleEL = lastSampleDL;
lastSampleDL = lastSampleCL;
lastSampleCL = lastSampleBL;
lastSampleBL = lastSampleAL;
lastSampleAL = drySampleL;
//store the raw L input sample again for use next time
clamp = inputSampleR - lastSampleAR;
if (clamp > thresholdA) inputSampleR = lastSampleAR + thresholdA;
if (-clamp > thresholdA) inputSampleR = lastSampleAR - thresholdA;
clamp = inputSampleR - lastSampleBR;
if (clamp > thresholdB) inputSampleR = lastSampleBR + thresholdB;
if (-clamp > thresholdB) inputSampleR = lastSampleBR - thresholdB;
clamp = inputSampleR - lastSampleCR;
if (clamp > thresholdC) inputSampleR = lastSampleCR + thresholdC;
if (-clamp > thresholdC) inputSampleR = lastSampleCR - thresholdC;
clamp = inputSampleR - lastSampleDR;
if (clamp > thresholdD) inputSampleR = lastSampleDR + thresholdD;
if (-clamp > thresholdD) inputSampleR = lastSampleDR - thresholdD;
clamp = inputSampleR - lastSampleER;
if (clamp > thresholdE) inputSampleR = lastSampleER + thresholdE;
if (-clamp > thresholdE) inputSampleR = lastSampleER - thresholdE;
clamp = inputSampleR - lastSampleFR;
if (clamp > thresholdF) inputSampleR = lastSampleFR + thresholdF;
if (-clamp > thresholdF) inputSampleR = lastSampleFR - thresholdF;
clamp = inputSampleR - lastSampleGR;
if (clamp > thresholdG) inputSampleR = lastSampleGR + thresholdG;
if (-clamp > thresholdG) inputSampleR = lastSampleGR - thresholdG;
clamp = inputSampleR - lastSampleHR;
if (clamp > thresholdH) inputSampleR = lastSampleHR + thresholdH;
if (-clamp > thresholdH) inputSampleR = lastSampleHR - thresholdH;
clamp = inputSampleR - lastSampleIR;
if (clamp > thresholdI) inputSampleR = lastSampleIR + thresholdI;
if (-clamp > thresholdI) inputSampleR = lastSampleIR - thresholdI;
clamp = inputSampleR - lastSampleJR;
if (clamp > thresholdJ) inputSampleR = lastSampleJR + thresholdJ;
if (-clamp > thresholdJ) inputSampleR = lastSampleJR - thresholdJ;
clamp = inputSampleR - lastSampleKR;
if (clamp > thresholdK) inputSampleR = lastSampleKR + thresholdK;
if (-clamp > thresholdK) inputSampleR = lastSampleKR - thresholdK;
clamp = inputSampleR - lastSampleLR;
if (clamp > thresholdL) inputSampleR = lastSampleLR + thresholdL;
if (-clamp > thresholdL) inputSampleR = lastSampleLR - thresholdL;
clamp = inputSampleR - lastSampleMR;
if (clamp > thresholdM) inputSampleR = lastSampleMR + thresholdM;
if (-clamp > thresholdM) inputSampleR = lastSampleMR - thresholdM;
lastSampleMR = lastSampleLR;
lastSampleLR = lastSampleKR;
lastSampleKR = lastSampleJR;
lastSampleJR = lastSampleIR;
lastSampleIR = lastSampleHR;
lastSampleHR = lastSampleGR;
lastSampleGR = lastSampleFR;
lastSampleFR = lastSampleER;
lastSampleER = lastSampleDR;
lastSampleDR = lastSampleCR;
lastSampleCR = lastSampleBR;
lastSampleBR = lastSampleAR;
lastSampleAR = drySampleR;
//store the raw R input sample again for use next time
//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++;
}
}
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