/* ========================================
* Melt - Melt.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __Melt_H
#include "Melt.h"
#endif
void Melt::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
double rate = 1 / (pow(A,2) + 0.001);
double depthB = (B * 139.5)+2;
double depthA = depthB * (1.0 - A);
double output = C * 0.05;
double wet = D;
double dry = 1.0-wet;
long double inputSampleL;
long double inputSampleR;
long double drySampleL;
long double drySampleR;
minTap[0] = floor(2 * depthA); maxTap[0] = floor(2 * depthB);
minTap[1] = floor(3 * depthA); maxTap[1] = floor(3 * depthB);
minTap[2] = floor(5 * depthA); maxTap[2] = floor(5 * depthB);
minTap[3] = floor(7 * depthA); maxTap[3] = floor(7 * depthB);
minTap[4] = floor(11 * depthA); maxTap[4] = floor(11 * depthB);
minTap[5] = floor(13 * depthA); maxTap[5] = floor(13 * depthB);
minTap[6] = floor(17 * depthA); maxTap[6] = floor(17 * depthB);
minTap[7] = floor(19 * depthA); maxTap[7] = floor(19 * depthB);
minTap[8] = floor(23 * depthA); maxTap[8] = floor(23 * depthB);
minTap[9] = floor(29 * depthA); maxTap[9] = floor(29 * depthB);
minTap[10] = floor(31 * depthA); maxTap[10] = floor(31 * depthB);
minTap[11] = floor(37 * depthA); maxTap[11] = floor(37 * depthB);
minTap[12] = floor(41 * depthA); maxTap[12] = floor(41 * depthB);
minTap[13] = floor(43 * depthA); maxTap[13] = floor(43 * depthB);
minTap[14] = floor(47 * depthA); maxTap[14] = floor(47 * depthB);
minTap[15] = floor(53 * depthA); maxTap[15] = floor(53 * depthB);
minTap[16] = floor(59 * depthA); maxTap[16] = floor(59 * depthB);
minTap[17] = floor(61 * depthA); maxTap[17] = floor(61 * depthB);
minTap[18] = floor(67 * depthA); maxTap[18] = floor(67 * depthB);
minTap[19] = floor(71 * depthA); maxTap[19] = floor(71 * depthB);
minTap[20] = floor(73 * depthA); maxTap[20] = floor(73 * depthB);
minTap[21] = floor(79 * depthA); maxTap[21] = floor(79 * depthB);
minTap[22] = floor(83 * depthA); maxTap[22] = floor(83 * depthB);
minTap[23] = floor(89 * depthA); maxTap[23] = floor(89 * depthB);
minTap[24] = floor(97 * depthA); maxTap[24] = floor(97 * depthB);
minTap[25] = floor(101 * depthA); maxTap[25] = floor(101 * depthB);
minTap[26] = floor(103 * depthA); maxTap[26] = floor(103 * depthB);
minTap[27] = floor(107 * depthA); maxTap[27] = floor(107 * depthB);
minTap[28] = floor(109 * depthA); maxTap[28] = floor(109 * depthB);
minTap[29] = floor(113 * depthA); maxTap[29] = floor(113 * depthB);
minTap[30] = floor(117 * depthA); maxTap[30] = floor(117 * depthB);
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.
}
drySampleL = inputSampleL;
drySampleR = inputSampleR;
if (gcount < 0 || gcount > 16000) {gcount = 16000;}
dL[gcount+16000] = dL[gcount] = inputSampleL;
dR[gcount+16000] = dR[gcount] = inputSampleR;
if (slowCount > rate || slowCount < 0) {
slowCount = 0;
stepCount++;
if (stepCount > 29 || stepCount < 0) {stepCount = 0;}
position[stepCount] += stepTap[stepCount];
if (position[stepCount] < minTap[stepCount]) {
position[stepCount] = minTap[stepCount];
stepTap[stepCount] = 1;
}
if (position[stepCount] > maxTap[stepCount]) {
position[stepCount] = maxTap[stepCount];
stepTap[stepCount] = -1;
}
}
//begin L
scalefactorL *= 0.9999;
scalefactorL += (100.0 - fabs(combineL)) * 0.000001;
combineL *= scalefactorL;
combineL -= (dL[gcount+position[29]]);
combineL += (dL[gcount+position[28]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[27]]);
combineL += (dL[gcount+position[26]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[25]]);
combineL += (dL[gcount+position[24]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[23]]);
combineL += (dL[gcount+position[22]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[21]]);
combineL += (dL[gcount+position[20]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[19]]);
combineL += (dL[gcount+position[18]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[17]]);
combineL += (dL[gcount+position[16]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[15]]);
combineL += (dL[gcount+position[14]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[13]]);
combineL += (dL[gcount+position[12]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[11]]);
combineL += (dL[gcount+position[10]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[9]]);
combineL += (dL[gcount+position[8]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[7]]);
combineL += (dL[gcount+position[6]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[5]]);
combineL += (dL[gcount+position[4]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[3]]);
combineL += (dL[gcount+position[2]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[1]]);
combineL += (dL[gcount+position[0]]);
inputSampleL = combineL;
//done with L
//begin R
scalefactorR *= 0.9999;
scalefactorR += (100.0 - fabs(combineR)) * 0.000001;
combineR *= scalefactorR;
combineR -= (dR[gcount+position[29]]);
combineR += (dR[gcount+position[28]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[27]]);
combineR += (dR[gcount+position[26]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[25]]);
combineR += (dR[gcount+position[24]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[23]]);
combineR += (dR[gcount+position[22]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[21]]);
combineR += (dR[gcount+position[20]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[19]]);
combineR += (dR[gcount+position[18]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[17]]);
combineR += (dR[gcount+position[16]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[15]]);
combineR += (dR[gcount+position[14]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[13]]);
combineR += (dR[gcount+position[12]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[11]]);
combineR += (dR[gcount+position[10]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[9]]);
combineR += (dR[gcount+position[8]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[7]]);
combineR += (dR[gcount+position[6]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[5]]);
combineR += (dR[gcount+position[4]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[3]]);
combineR += (dR[gcount+position[2]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[1]]);
combineR += (dR[gcount+position[0]]);
inputSampleR = combineR;
//done with R
gcount--;
slowCount++;
if (output < 1.0) {inputSampleL *= output; inputSampleR *= output;}
if (wet < 1.0) {
inputSampleL = (drySampleL * dry)+(inputSampleL*wet);
inputSampleR = (drySampleR * dry)+(inputSampleR*wet);
}
//nice little output stage template: if we have another scale of floating point
//number, we really don't want to meaninglessly multiply that by 1.0.
//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 Melt::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
double rate = 1 / (pow(A,2) + 0.001);
double depthB = (B * 139.5)+2;
double depthA = depthB * (1.0 - A);
double output = C * 0.05;
double wet = D;
double dry = 1.0-wet;
long double inputSampleL;
long double inputSampleR;
long double drySampleL;
long double drySampleR;
minTap[0] = floor(2 * depthA); maxTap[0] = floor(2 * depthB);
minTap[1] = floor(3 * depthA); maxTap[1] = floor(3 * depthB);
minTap[2] = floor(5 * depthA); maxTap[2] = floor(5 * depthB);
minTap[3] = floor(7 * depthA); maxTap[3] = floor(7 * depthB);
minTap[4] = floor(11 * depthA); maxTap[4] = floor(11 * depthB);
minTap[5] = floor(13 * depthA); maxTap[5] = floor(13 * depthB);
minTap[6] = floor(17 * depthA); maxTap[6] = floor(17 * depthB);
minTap[7] = floor(19 * depthA); maxTap[7] = floor(19 * depthB);
minTap[8] = floor(23 * depthA); maxTap[8] = floor(23 * depthB);
minTap[9] = floor(29 * depthA); maxTap[9] = floor(29 * depthB);
minTap[10] = floor(31 * depthA); maxTap[10] = floor(31 * depthB);
minTap[11] = floor(37 * depthA); maxTap[11] = floor(37 * depthB);
minTap[12] = floor(41 * depthA); maxTap[12] = floor(41 * depthB);
minTap[13] = floor(43 * depthA); maxTap[13] = floor(43 * depthB);
minTap[14] = floor(47 * depthA); maxTap[14] = floor(47 * depthB);
minTap[15] = floor(53 * depthA); maxTap[15] = floor(53 * depthB);
minTap[16] = floor(59 * depthA); maxTap[16] = floor(59 * depthB);
minTap[17] = floor(61 * depthA); maxTap[17] = floor(61 * depthB);
minTap[18] = floor(67 * depthA); maxTap[18] = floor(67 * depthB);
minTap[19] = floor(71 * depthA); maxTap[19] = floor(71 * depthB);
minTap[20] = floor(73 * depthA); maxTap[20] = floor(73 * depthB);
minTap[21] = floor(79 * depthA); maxTap[21] = floor(79 * depthB);
minTap[22] = floor(83 * depthA); maxTap[22] = floor(83 * depthB);
minTap[23] = floor(89 * depthA); maxTap[23] = floor(89 * depthB);
minTap[24] = floor(97 * depthA); maxTap[24] = floor(97 * depthB);
minTap[25] = floor(101 * depthA); maxTap[25] = floor(101 * depthB);
minTap[26] = floor(103 * depthA); maxTap[26] = floor(103 * depthB);
minTap[27] = floor(107 * depthA); maxTap[27] = floor(107 * depthB);
minTap[28] = floor(109 * depthA); maxTap[28] = floor(109 * depthB);
minTap[29] = floor(113 * depthA); maxTap[29] = floor(113 * depthB);
minTap[30] = floor(117 * depthA); maxTap[30] = floor(117 * depthB);
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.
}
drySampleL = inputSampleL;
drySampleR = inputSampleR;
if (gcount < 0 || gcount > 16000) {gcount = 16000;}
dL[gcount+16000] = dL[gcount] = inputSampleL;
dR[gcount+16000] = dR[gcount] = inputSampleR;
if (slowCount > rate || slowCount < 0) {
slowCount = 0;
stepCount++;
if (stepCount > 29 || stepCount < 0) {stepCount = 0;}
position[stepCount] += stepTap[stepCount];
if (position[stepCount] < minTap[stepCount]) {
position[stepCount] = minTap[stepCount];
stepTap[stepCount] = 1;
}
if (position[stepCount] > maxTap[stepCount]) {
position[stepCount] = maxTap[stepCount];
stepTap[stepCount] = -1;
}
}
//begin L
scalefactorL *= 0.9999;
scalefactorL += (100.0 - fabs(combineL)) * 0.000001;
combineL *= scalefactorL;
combineL -= (dL[gcount+position[29]]);
combineL += (dL[gcount+position[28]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[27]]);
combineL += (dL[gcount+position[26]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[25]]);
combineL += (dL[gcount+position[24]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[23]]);
combineL += (dL[gcount+position[22]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[21]]);
combineL += (dL[gcount+position[20]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[19]]);
combineL += (dL[gcount+position[18]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[17]]);
combineL += (dL[gcount+position[16]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[15]]);
combineL += (dL[gcount+position[14]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[13]]);
combineL += (dL[gcount+position[12]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[11]]);
combineL += (dL[gcount+position[10]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[9]]);
combineL += (dL[gcount+position[8]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[7]]);
combineL += (dL[gcount+position[6]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[5]]);
combineL += (dL[gcount+position[4]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[3]]);
combineL += (dL[gcount+position[2]]);
combineL *= scalefactorL;
combineL -= (dL[gcount+position[1]]);
combineL += (dL[gcount+position[0]]);
inputSampleL = combineL;
//done with L
//begin R
scalefactorR *= 0.9999;
scalefactorR += (100.0 - fabs(combineR)) * 0.000001;
combineR *= scalefactorR;
combineR -= (dR[gcount+position[29]]);
combineR += (dR[gcount+position[28]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[27]]);
combineR += (dR[gcount+position[26]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[25]]);
combineR += (dR[gcount+position[24]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[23]]);
combineR += (dR[gcount+position[22]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[21]]);
combineR += (dR[gcount+position[20]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[19]]);
combineR += (dR[gcount+position[18]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[17]]);
combineR += (dR[gcount+position[16]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[15]]);
combineR += (dR[gcount+position[14]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[13]]);
combineR += (dR[gcount+position[12]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[11]]);
combineR += (dR[gcount+position[10]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[9]]);
combineR += (dR[gcount+position[8]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[7]]);
combineR += (dR[gcount+position[6]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[5]]);
combineR += (dR[gcount+position[4]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[3]]);
combineR += (dR[gcount+position[2]]);
combineR *= scalefactorR;
combineR -= (dR[gcount+position[1]]);
combineR += (dR[gcount+position[0]]);
inputSampleR = combineR;
//done with R
gcount--;
slowCount++;
if (output < 1.0) {inputSampleL *= output; inputSampleR *= output;}
if (wet < 1.0) {
inputSampleL = (drySampleL * dry)+(inputSampleL*wet);
inputSampleR = (drySampleR * dry)+(inputSampleR*wet);
}
//nice little output stage template: if we have another scale of floating point
//number, we really don't want to meaninglessly multiply that by 1.0.
//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++;
}
}
