mirror of
https://github.com/airwindows/airwindows.git
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282 lines
9.8 KiB
C++
Executable file
282 lines
9.8 KiB
C++
Executable file
/* ========================================
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* Pockey - Pockey.h
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* Copyright (c) 2016 airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __Pockey_H
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#include "Pockey.h"
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#endif
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void Pockey::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
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{
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float* in1 = inputs[0];
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float* in2 = inputs[1];
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float* out1 = outputs[0];
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float* out2 = outputs[1];
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VstInt32 inFramesToProcess = sampleFrames; //vst doesn't give us this as a separate variable so we'll make it
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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double freqMin = 0.08 / overallscale;
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freqA = freqB; freqB = (pow(1.0-A,3)*(0.618033988749894848204586-freqMin))+freqMin;
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//freq is always engaged at least a little
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rezA = rezB; rezB = pow(B*0.618033988749894848204586,3)+0.000244140625;
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//rez is always at least 12 bit truncation
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double wet = C;
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while (--sampleFrames >= 0)
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{
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double inputSampleL = *in1;
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double inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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double drySampleL = inputSampleL;
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double drySampleR = inputSampleR;
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double temp = (double)sampleFrames/inFramesToProcess;
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double freq = (freqA*temp)+(freqB*(1.0-temp));
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double rez = (rezA*temp)+(rezB*(1.0-temp));
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if (inputSampleL > 1.0) inputSampleL = 1.0; if (inputSampleL < -1.0) inputSampleL = -1.0;
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if (inputSampleL > 0) inputSampleL = log(1.0+(255*fabs(inputSampleL)))/log(255);
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if (inputSampleL < 0) inputSampleL = -log(1.0+(255*fabs(inputSampleL)))/log(255);
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if (inputSampleR > 1.0) inputSampleR = 1.0; if (inputSampleR < -1.0) inputSampleR = -1.0;
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if (inputSampleR > 0) inputSampleR = log(1.0+(255*fabs(inputSampleR)))/log(255);
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if (inputSampleR < 0) inputSampleR = -log(1.0+(255*fabs(inputSampleR)))/log(255);
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//end uLaw encode
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double offset = inputSampleL;
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if (inputSampleL > 0)
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{
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while (offset > 0) {offset -= rez;}
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inputSampleL -= offset;
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//it's below 0 so subtracting adds the remainder
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}
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if (inputSampleL < 0)
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{
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while (offset < 0) {offset += rez;}
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inputSampleL -= offset;
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//it's above 0 so subtracting subtracts the remainder
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}
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inputSampleL *= (1.0 - rez);
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offset = inputSampleR;
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if (inputSampleR > 0)
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{
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while (offset > 0) {offset -= rez;}
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inputSampleR -= offset;
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//it's below 0 so subtracting adds the remainder
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}
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if (inputSampleR < 0)
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{
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while (offset < 0) {offset += rez;}
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inputSampleR -= offset;
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//it's above 0 so subtracting subtracts the remainder
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}
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inputSampleR *= (1.0 - rez);
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if (inputSampleL > 1.0) inputSampleL = 1.0; if (inputSampleL < -1.0) inputSampleL = -1.0;
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if (inputSampleL > 0) inputSampleL = (pow(256,fabs(inputSampleL))-1.0) / 255;
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if (inputSampleL < 0) inputSampleL = -(pow(256,fabs(inputSampleL))-1.0) / 255;
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if (inputSampleR > 1.0) inputSampleR = 1.0; if (inputSampleR < -1.0) inputSampleR = -1.0;
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if (inputSampleR > 0) inputSampleR = (pow(256,fabs(inputSampleR))-1.0) / 255;
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if (inputSampleR < 0) inputSampleR = -(pow(256,fabs(inputSampleR))-1.0) / 255;
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//end uLaw decode
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positionL += freq;
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double outputSample = heldSampleL;
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if (positionL > 1.0)
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{
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positionL -= 1.0;
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heldSampleL = (lastSampleL * positionL) + (inputSampleL * (1-positionL));
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outputSample = (heldSampleL * (1-positionL)) + (outputSample * positionL);
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}
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inputSampleL = outputSample;
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double slew = fabs(inputSampleL - lastSoftenL)*freq;
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if (slew > 0.5) slew = 0.5;
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inputSampleL = (inputSampleL * slew) + (lastSoftenL * (1.0-slew));
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//conditional average: only if we actually have brightness
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lastSampleL = drySampleL;
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lastSoftenL = outputSample;
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positionR += freq;
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outputSample = heldSampleR;
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if (positionR > 1.0)
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{
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positionR -= 1.0;
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heldSampleR = (lastSampleR * positionR) + (inputSampleR * (1-positionR));
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outputSample = (heldSampleR * (1-positionR)) + (outputSample * positionR);
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}
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inputSampleR = outputSample;
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slew = fabs(inputSampleR - lastSoftenR)*freq;
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if (slew > 0.5) slew = 0.5;
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inputSampleR = (inputSampleR * slew) + (lastSoftenR * (1.0-slew));
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//conditional average: only if we actually have brightness
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lastSampleR = drySampleR;
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lastSoftenR = outputSample;
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//end Frequency Derez
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if (wet !=1.0) {
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inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet));
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inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet));
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}
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//begin 32 bit stereo floating point dither
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int expon; frexpf((float)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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frexpf((float)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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//end 32 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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in1++;
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in2++;
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out1++;
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out2++;
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}
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}
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void Pockey::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
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{
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double* in1 = inputs[0];
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double* in2 = inputs[1];
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double* out1 = outputs[0];
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double* out2 = outputs[1];
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VstInt32 inFramesToProcess = sampleFrames; //vst doesn't give us this as a separate variable so we'll make it
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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double freqMin = 0.08 / overallscale;
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freqA = freqB; freqB = (pow(1.0-A,3)*(0.618033988749894848204586-freqMin))+freqMin;
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//freq is always engaged at least a little
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rezA = rezB; rezB = pow(B*0.618033988749894848204586,3)+0.000244140625;
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//rez is always at least 12 bit truncation
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double wet = C;
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while (--sampleFrames >= 0)
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{
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double inputSampleL = *in1;
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double inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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double drySampleL = inputSampleL;
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double drySampleR = inputSampleR;
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double temp = (double)sampleFrames/inFramesToProcess;
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double freq = (freqA*temp)+(freqB*(1.0-temp));
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double rez = (rezA*temp)+(rezB*(1.0-temp));
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if (inputSampleL > 1.0) inputSampleL = 1.0; if (inputSampleL < -1.0) inputSampleL = -1.0;
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if (inputSampleL > 0) inputSampleL = log(1.0+(255*fabs(inputSampleL)))/log(255);
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if (inputSampleL < 0) inputSampleL = -log(1.0+(255*fabs(inputSampleL)))/log(255);
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if (inputSampleR > 1.0) inputSampleR = 1.0; if (inputSampleR < -1.0) inputSampleR = -1.0;
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if (inputSampleR > 0) inputSampleR = log(1.0+(255*fabs(inputSampleR)))/log(255);
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if (inputSampleR < 0) inputSampleR = -log(1.0+(255*fabs(inputSampleR)))/log(255);
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//end uLaw encode
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double offset = inputSampleL;
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if (inputSampleL > 0)
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{
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while (offset > 0) {offset -= rez;}
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inputSampleL -= offset;
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//it's below 0 so subtracting adds the remainder
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}
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if (inputSampleL < 0)
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{
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while (offset < 0) {offset += rez;}
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inputSampleL -= offset;
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//it's above 0 so subtracting subtracts the remainder
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}
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inputSampleL *= (1.0 - rez);
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offset = inputSampleR;
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if (inputSampleR > 0)
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{
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while (offset > 0) {offset -= rez;}
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inputSampleR -= offset;
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//it's below 0 so subtracting adds the remainder
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}
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if (inputSampleR < 0)
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{
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while (offset < 0) {offset += rez;}
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inputSampleR -= offset;
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//it's above 0 so subtracting subtracts the remainder
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}
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inputSampleR *= (1.0 - rez);
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if (inputSampleL > 1.0) inputSampleL = 1.0; if (inputSampleL < -1.0) inputSampleL = -1.0;
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if (inputSampleL > 0) inputSampleL = (pow(256,fabs(inputSampleL))-1.0) / 255;
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if (inputSampleL < 0) inputSampleL = -(pow(256,fabs(inputSampleL))-1.0) / 255;
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if (inputSampleR > 1.0) inputSampleR = 1.0; if (inputSampleR < -1.0) inputSampleR = -1.0;
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if (inputSampleR > 0) inputSampleR = (pow(256,fabs(inputSampleR))-1.0) / 255;
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if (inputSampleR < 0) inputSampleR = -(pow(256,fabs(inputSampleR))-1.0) / 255;
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//end uLaw decode
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positionL += freq;
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double outputSample = heldSampleL;
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if (positionL > 1.0)
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{
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positionL -= 1.0;
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heldSampleL = (lastSampleL * positionL) + (inputSampleL * (1-positionL));
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outputSample = (heldSampleL * (1-positionL)) + (outputSample * positionL);
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}
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inputSampleL = outputSample;
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double slew = fabs(inputSampleL - lastSoftenL)*freq;
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if (slew > 0.5) slew = 0.5;
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inputSampleL = (inputSampleL * slew) + (lastSoftenL * (1.0-slew));
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//conditional average: only if we actually have brightness
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lastSampleL = drySampleL;
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lastSoftenL = outputSample;
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positionR += freq;
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outputSample = heldSampleR;
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if (positionR > 1.0)
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{
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positionR -= 1.0;
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heldSampleR = (lastSampleR * positionR) + (inputSampleR * (1-positionR));
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outputSample = (heldSampleR * (1-positionR)) + (outputSample * positionR);
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}
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inputSampleR = outputSample;
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slew = fabs(inputSampleR - lastSoftenR)*freq;
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if (slew > 0.5) slew = 0.5;
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inputSampleR = (inputSampleR * slew) + (lastSoftenR * (1.0-slew));
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//conditional average: only if we actually have brightness
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lastSampleR = drySampleR;
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lastSoftenR = outputSample;
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//end Frequency Derez
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if (wet !=1.0) {
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inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet));
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inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet));
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}
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//begin 64 bit stereo floating point dither
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//int expon; frexp((double)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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//inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
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//frexp((double)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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//inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
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//end 64 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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in1++;
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in2++;
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out1++;
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out2++;
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}
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}
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