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/* ========================================
* DitherMeTimbers - DitherMeTimbers.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __DitherMeTimbers_H
#include "DitherMeTimbers.h"
#endif
void DitherMeTimbers::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
while (--sampleFrames >= 0)
{
double inputSampleL = *in1 * 8388608.0;
double inputSampleR = *in2 * 8388608.0;
double outputSampleL;
double outputSampleR;
lastSampleL -= (noiseShapingL*0.125);
lastSampleR -= (noiseShapingR*0.125);
if ((lastSampleL+lastSampleL) >= (inputSampleL+lastSample2L)) outputSampleL = floor(lastSampleL);
else outputSampleL = floor(lastSampleL+1.0); //round down or up based on whether it softens treble angles
if ((lastSampleR+lastSampleR) >= (inputSampleR+lastSample2R)) outputSampleR = floor(lastSampleR);
else outputSampleR = floor(lastSampleR+1.0); //round down or up based on whether it softens treble angles
lastSample2L = lastSampleL;
lastSampleL = inputSampleL; //we retain three samples in a row
lastSample2R = lastSampleR;
lastSampleR = inputSampleR; //we retain three samples in a row
noiseShapingL += outputSampleL;
noiseShapingL -= lastSampleL;
noiseShapingR += outputSampleR;
noiseShapingR -= lastSampleR;
if (outputSampleL > 8388600.0) {
outputSampleL = 8388600.0;
noiseShapingL *= 0.5;
}
if (outputSampleR > 8388600.0) {
outputSampleR = 8388600.0;
noiseShapingR *= 0.5;
}
if (outputSampleL < -8388600.0) {
outputSampleL = -8388600.0;
noiseShapingL *= 0.5;
}
if (outputSampleR < -8388600.0) {
outputSampleR = -8388600.0;
noiseShapingR *= 0.5;
}
*out1 = outputSampleL / 8388608.0;
*out2 = outputSampleR / 8388608.0;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
void DitherMeTimbers::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
while (--sampleFrames >= 0)
{
double inputSampleL = *in1 * 8388608.0;
double inputSampleR = *in2 * 8388608.0;
double outputSampleL;
double outputSampleR;
lastSampleL -= (noiseShapingL*0.125);
lastSampleR -= (noiseShapingR*0.125);
if ((lastSampleL+lastSampleL) >= (inputSampleL+lastSample2L)) outputSampleL = floor(lastSampleL);
else outputSampleL = floor(lastSampleL+1.0); //round down or up based on whether it softens treble angles
if ((lastSampleR+lastSampleR) >= (inputSampleR+lastSample2R)) outputSampleR = floor(lastSampleR);
else outputSampleR = floor(lastSampleR+1.0); //round down or up based on whether it softens treble angles
lastSample2L = lastSampleL;
lastSampleL = inputSampleL; //we retain three samples in a row
lastSample2R = lastSampleR;
lastSampleR = inputSampleR; //we retain three samples in a row
noiseShapingL += outputSampleL;
noiseShapingL -= lastSampleL;
noiseShapingR += outputSampleR;
noiseShapingR -= lastSampleR;
if (outputSampleL > 8388600.0) {
outputSampleL = 8388600.0;
noiseShapingL *= 0.5;
}
if (outputSampleR > 8388600.0) {
outputSampleR = 8388600.0;
noiseShapingR *= 0.5;
}
if (outputSampleL < -8388600.0) {
outputSampleL = -8388600.0;
noiseShapingL *= 0.5;
}
if (outputSampleR < -8388600.0) {
outputSampleR = -8388600.0;
noiseShapingR *= 0.5;
}
*out1 = outputSampleL / 8388608.0;
*out2 = outputSampleR / 8388608.0;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
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