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212 lines
7.5 KiB
C++
Executable file
212 lines
7.5 KiB
C++
Executable file
/* ========================================
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* DubPlate - DubPlate.h
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* Copyright (c) airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __DubPlate_H
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#include "DubPlate.h"
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#endif
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void DubPlate::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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double rangescale = 0.1 / overallscale;
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double iirSide = 0.287496 * rangescale;
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double iirMid = 0.20123 * rangescale;
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double threshSinewA = 0.15 / overallscale;
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double threshSinewB = 0.127 / overallscale;
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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 mid = inputSampleL + inputSampleR;
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double side = inputSampleL - inputSampleR;
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//assign mid and side.Between these sections, you can do mid/side processing
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double temp = side;
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double correction;
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if (fpFlip) {
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iirA = (iirA * (1.0 - iirSide)) + (temp * iirSide); temp -= iirA; correction = iirA;
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} else {
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iirB = (iirB * (1.0 - iirSide)) + (temp * iirSide); temp -= iirB; correction = iirB;
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}
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iirC = (iirC * (1.0 - iirSide)) + (temp * iirSide); temp -= iirC; correction += (iirC * 0.162);
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side -= sin(correction);
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fpFlip = !fpFlip;
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iirD = (iirD * (1.0 - iirMid)) + (mid * iirMid);
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mid -= sin(iirD);
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//gonna cut those lows a hair
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inputSampleL = (mid+side)/2.0;
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inputSampleR = (mid-side)/2.0;
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//unassign mid and side
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temp = inputSampleL;
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double sinew = threshSinewA * cos(lastSinewAL*lastSinewAL);
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if (inputSampleL - lastSinewAL > sinew) temp = lastSinewAL + sinew;
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if (-(inputSampleL - lastSinewAL) > sinew) temp = lastSinewAL - sinew;
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lastSinewAL = temp;
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if (lastSinewAL > 1.0) lastSinewAL = 1.0;
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if (lastSinewAL < -1.0) lastSinewAL = -1.0;
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inputSampleL = (inputSampleL * 0.5)+(lastSinewAL * 0.5);
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sinew = threshSinewB * cos(lastSinewBL*lastSinewBL);
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if (inputSampleL - lastSinewBL > sinew) temp = lastSinewBL + sinew;
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if (-(inputSampleL - lastSinewBL) > sinew) temp = lastSinewBL - sinew;
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lastSinewBL = temp;
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if (lastSinewBL > 1.0) lastSinewBL = 1.0;
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if (lastSinewBL < -1.0) lastSinewBL = -1.0;
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inputSampleL = (inputSampleL * 0.414)+(lastSinewBL * 0.586);
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temp = inputSampleR;
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sinew = threshSinewA * cos(lastSinewAR*lastSinewAR);
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if (inputSampleR - lastSinewAR > sinew) temp = lastSinewAR + sinew;
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if (-(inputSampleR - lastSinewAR) > sinew) temp = lastSinewAR - sinew;
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lastSinewAR = temp;
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if (lastSinewAR > 1.0) lastSinewAR = 1.0;
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if (lastSinewAR < -1.0) lastSinewAR = -1.0;
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inputSampleR = (inputSampleR * 0.5)+(lastSinewAR * 0.5);
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sinew = threshSinewB * cos(lastSinewBR*lastSinewBR);
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if (inputSampleR - lastSinewBR > sinew) temp = lastSinewBR + sinew;
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if (-(inputSampleR - lastSinewBR) > sinew) temp = lastSinewBR - sinew;
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lastSinewBR = temp;
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if (lastSinewBR > 1.0) lastSinewBR = 1.0;
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if (lastSinewBR < -1.0) lastSinewBR = -1.0;
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inputSampleR = (inputSampleR * 0.414)+(lastSinewBR * 0.586);
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//run Sinew to stop excess slews, two layers to make it more audible
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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 DubPlate::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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double rangescale = 0.1 / overallscale;
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double iirSide = 0.287496 * rangescale;
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double iirMid = 0.20123 * rangescale;
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double threshSinewA = 0.15 / overallscale;
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double threshSinewB = 0.127 / overallscale;
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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 mid = inputSampleL + inputSampleR;
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double side = inputSampleL - inputSampleR;
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//assign mid and side.Between these sections, you can do mid/side processing
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double temp = side;
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double correction;
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if (fpFlip) {
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iirA = (iirA * (1.0 - iirSide)) + (temp * iirSide); temp -= iirA; correction = iirA;
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} else {
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iirB = (iirB * (1.0 - iirSide)) + (temp * iirSide); temp -= iirB; correction = iirB;
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}
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iirC = (iirC * (1.0 - iirSide)) + (temp * iirSide); temp -= iirC; correction += (iirC * 0.162);
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side -= sin(correction);
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fpFlip = !fpFlip;
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iirD = (iirD * (1.0 - iirMid)) + (mid * iirMid);
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mid -= sin(iirD);
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//gonna cut those lows a hair
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inputSampleL = (mid+side)/2.0;
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inputSampleR = (mid-side)/2.0;
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//unassign mid and side
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temp = inputSampleL;
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double sinew = threshSinewA * cos(lastSinewAL*lastSinewAL);
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if (inputSampleL - lastSinewAL > sinew) temp = lastSinewAL + sinew;
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if (-(inputSampleL - lastSinewAL) > sinew) temp = lastSinewAL - sinew;
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lastSinewAL = temp;
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if (lastSinewAL > 1.0) lastSinewAL = 1.0;
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if (lastSinewAL < -1.0) lastSinewAL = -1.0;
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inputSampleL = (inputSampleL * 0.5)+(lastSinewAL * 0.5);
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sinew = threshSinewB * cos(lastSinewBL*lastSinewBL);
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if (inputSampleL - lastSinewBL > sinew) temp = lastSinewBL + sinew;
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if (-(inputSampleL - lastSinewBL) > sinew) temp = lastSinewBL - sinew;
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lastSinewBL = temp;
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if (lastSinewBL > 1.0) lastSinewBL = 1.0;
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if (lastSinewBL < -1.0) lastSinewBL = -1.0;
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inputSampleL = (inputSampleL * 0.414)+(lastSinewBL * 0.586);
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temp = inputSampleR;
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sinew = threshSinewA * cos(lastSinewAR*lastSinewAR);
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if (inputSampleR - lastSinewAR > sinew) temp = lastSinewAR + sinew;
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if (-(inputSampleR - lastSinewAR) > sinew) temp = lastSinewAR - sinew;
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lastSinewAR = temp;
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if (lastSinewAR > 1.0) lastSinewAR = 1.0;
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if (lastSinewAR < -1.0) lastSinewAR = -1.0;
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inputSampleR = (inputSampleR * 0.5)+(lastSinewAR * 0.5);
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sinew = threshSinewB * cos(lastSinewBR*lastSinewBR);
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if (inputSampleR - lastSinewBR > sinew) temp = lastSinewBR + sinew;
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if (-(inputSampleR - lastSinewBR) > sinew) temp = lastSinewBR - sinew;
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lastSinewBR = temp;
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if (lastSinewBR > 1.0) lastSinewBR = 1.0;
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if (lastSinewBR < -1.0) lastSinewBR = -1.0;
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inputSampleR = (inputSampleR * 0.414)+(lastSinewBR * 0.586);
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//run Sinew to stop excess slews, two layers to make it more audible
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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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