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152 lines
6.3 KiB
C++
Executable file
152 lines
6.3 KiB
C++
Executable file
/* ========================================
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* Dynamics3 - Dynamics3.h
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* Copyright (c) airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __Dynamics3_H
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#include "Dynamics3.h"
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#endif
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void Dynamics3::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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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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//begin Dynamics3
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double bezThresh = pow(A+0.6180339887498949,2.0)*1.6180339887498949;
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double sqrThresh = sqrt(bezThresh);
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double bezRez = fmax(pow((1.0-B)*0.5,4.0)/overallscale,0.0001);
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bezRez /= (2.0/pow(overallscale,0.5-((overallscale-1.0)*0.0375)));
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int stepped = 999999; if (bezRez > 0.000001) stepped = (int)(1.0/bezRez);
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bezRez = 1.0 / stepped;
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double bezTrim = 1.0-(bezRez*((double)stepped/(stepped+1.0)));
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double sloRez = fmax(pow((1.0-C)*0.5,4.0)/overallscale,0.00001);
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sloRez /= (2.0/pow(overallscale,0.5-((overallscale-1.0)*0.0375)));
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double bezCompDry = pow(1.0-D,1.6180339887498949);
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if (bezThresh > 4.236) bezCompDry = 0.0;
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//end Dynamics3
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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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//begin Dynamics3
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inputSampleL *= (bezComp[bez_comp]/bezThresh);
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inputSampleR *= (bezComp[bez_comp]/bezThresh);
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double ctrl = fmin(fmax(fabs(inputSampleL),fabs(inputSampleR)),sqrThresh*bezComp[bez_comp]*0.6180339887498949);
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bezComp[bez_min] = fmax(bezComp[bez_min]-sloRez,ctrl);
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bezComp[bez_Ctrl] += (bezComp[bez_min] * bezRez);
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bezComp[bez_cycle] += bezRez;
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if (bezComp[bez_cycle] > 1.0) {bezComp[bez_cycle] = 0.0;
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bezComp[bez_C] = bezComp[bez_B]; bezComp[bez_B] = bezComp[bez_A];
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bezComp[bez_A] = bezComp[bez_Ctrl]; bezComp[bez_Ctrl] = 0.0;}
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double X = bezComp[bez_cycle]*bezTrim;
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bezComp[bez_comp] = bezComp[bez_B]+(bezComp[bez_C]*(1.0-X)*(1.0-X))+(bezComp[bez_B]*2.0*(1.0-X)*X)+(bezComp[bez_A]*X*X);
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bezComp[bez_comp] = ((1.0-(fmin(bezComp[bez_comp],1.0))));
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inputSampleL = (drySampleL*bezCompDry*(1.0-(bezComp[bez_comp]*(1.0-bezCompDry))))+(inputSampleL*(1.0-bezCompDry)*bezComp[bez_comp]*bezThresh);
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inputSampleR = (drySampleR*bezCompDry*(1.0-(bezComp[bez_comp]*(1.0-bezCompDry))))+(inputSampleR*(1.0-bezCompDry)*bezComp[bez_comp]*bezThresh);
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//end Dynamics3
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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)) * 3.553e-44l * 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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if (fpdL-fpdR < 1073741824 || fpdR-fpdL < 1073741824) {
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;}
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inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 3.553e-44l * 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 Dynamics3::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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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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//begin Dynamics3
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double bezThresh = pow(A+0.6180339887498949,2.0)*1.6180339887498949;
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double sqrThresh = sqrt(bezThresh);
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double bezRez = fmax(pow((1.0-B)*0.5,4.0)/overallscale,0.0001);
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bezRez /= (2.0/pow(overallscale,0.5-((overallscale-1.0)*0.0375)));
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int stepped = 999999; if (bezRez > 0.000001) stepped = (int)(1.0/bezRez);
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bezRez = 1.0 / stepped;
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double bezTrim = 1.0-(bezRez*((double)stepped/(stepped+1.0)));
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double sloRez = fmax(pow((1.0-C)*0.5,4.0)/overallscale,0.00001);
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sloRez /= (2.0/pow(overallscale,0.5-((overallscale-1.0)*0.0375)));
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double bezCompDry = pow(1.0-D,1.6180339887498949);
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if (bezThresh > 4.236) bezCompDry = 0.0;
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//end Dynamics3
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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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//begin Dynamics3
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inputSampleL *= (bezComp[bez_comp]/bezThresh);
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inputSampleR *= (bezComp[bez_comp]/bezThresh);
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double ctrl = fmin(fmax(fabs(inputSampleL),fabs(inputSampleR)),sqrThresh*bezComp[bez_comp]*0.6180339887498949);
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bezComp[bez_min] = fmax(bezComp[bez_min]-sloRez,ctrl);
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bezComp[bez_Ctrl] += (bezComp[bez_min] * bezRez);
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bezComp[bez_cycle] += bezRez;
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if (bezComp[bez_cycle] > 1.0) {bezComp[bez_cycle] = 0.0;
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bezComp[bez_C] = bezComp[bez_B]; bezComp[bez_B] = bezComp[bez_A];
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bezComp[bez_A] = bezComp[bez_Ctrl]; bezComp[bez_Ctrl] = 0.0;}
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double X = bezComp[bez_cycle]*bezTrim;
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bezComp[bez_comp] = bezComp[bez_B]+(bezComp[bez_C]*(1.0-X)*(1.0-X))+(bezComp[bez_B]*2.0*(1.0-X)*X)+(bezComp[bez_A]*X*X);
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bezComp[bez_comp] = ((1.0-(fmin(bezComp[bez_comp],1.0))));
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inputSampleL = (drySampleL*bezCompDry*(1.0-(bezComp[bez_comp]*(1.0-bezCompDry))))+(inputSampleL*(1.0-bezCompDry)*bezComp[bez_comp]*bezThresh);
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inputSampleR = (drySampleR*bezCompDry*(1.0-(bezComp[bez_comp]*(1.0-bezCompDry))))+(inputSampleR*(1.0-bezCompDry)*bezComp[bez_comp]*bezThresh);
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//end Dynamics3
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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)) * 3.553e-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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if (fpdL-fpdR < 1073741824 || fpdR-fpdL < 1073741824) {
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;}
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//inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 3.553e-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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