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218 lines
9.5 KiB
C++
Executable file
218 lines
9.5 KiB
C++
Executable file
/* ========================================
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* BeziComp - BeziComp.h
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* Copyright (c) airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __BeziComp_H
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#include "BeziComp.h"
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#endif
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void BeziComp::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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int spacing = floor(overallscale); //should give us working basic scaling, usually 2 or 4
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if (spacing < 1) spacing = 1; if (spacing > 16) spacing = 16;
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double bezCThresh = pow(A,2.0) * 64.0;
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double bezMakeUp = sqrt(bezCThresh+1.0);
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double bezRez = (pow(B,6.0)+0.0001)/overallscale; if (bezRez > 1.0) bezRez = 1.0;
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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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bezComp[bez_cycle] += bezRez;
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bezComp[bez_SampL] += (fmax(fabs(inputSampleL),fabs(inputSampleR)) * bezRez);
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if (bezComp[bez_cycle] > 1.0) {
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bezComp[bez_cycle] -= 1.0;
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bezComp[bez_CL] = bezComp[bez_BL];
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bezComp[bez_BL] = bezComp[bez_AL];
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bezComp[bez_AL] = bezComp[bez_SampL];
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bezComp[bez_SampL] = 0.0;
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}
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double CBL = (bezComp[bez_CL]*(1.0-bezComp[bez_cycle]))+(bezComp[bez_BL]*bezComp[bez_cycle]);
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double BAL = (bezComp[bez_BL]*(1.0-bezComp[bez_cycle]))+(bezComp[bez_AL]*bezComp[bez_cycle]);
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double CBAL = (bezComp[bez_BL]+(CBL*(1.0-bezComp[bez_cycle]))+(BAL*bezComp[bez_cycle]))*0.5;
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inputSampleL *= 1.0-(fmin(CBAL*bezCThresh,1.0));
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inputSampleL *= bezMakeUp;
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inputSampleR *= 1.0-(fmin(CBAL*bezCThresh,1.0));
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inputSampleR *= bezMakeUp;
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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 ClipOnly2 stereo as a little, compressed chunk that can be dropped into code
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if (inputSampleL > 4.0) inputSampleL = 4.0; if (inputSampleL < -4.0) inputSampleL = -4.0;
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if (wasPosClipL == true) { //current will be over
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if (inputSampleL<lastSampleL) lastSampleL=0.7058208+(inputSampleL*0.2609148);
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else lastSampleL = 0.2491717+(lastSampleL*0.7390851);
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} wasPosClipL = false;
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if (inputSampleL>0.9549925859) {wasPosClipL=true;inputSampleL=0.7058208+(lastSampleL*0.2609148);}
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if (wasNegClipL == true) { //current will be -over
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if (inputSampleL > lastSampleL) lastSampleL=-0.7058208+(inputSampleL*0.2609148);
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else lastSampleL=-0.2491717+(lastSampleL*0.7390851);
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} wasNegClipL = false;
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if (inputSampleL<-0.9549925859) {wasNegClipL=true;inputSampleL=-0.7058208+(lastSampleL*0.2609148);}
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intermediateL[spacing] = inputSampleL;
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inputSampleL = lastSampleL; //Latency is however many samples equals one 44.1k sample
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for (int x = spacing; x > 0; x--) intermediateL[x-1] = intermediateL[x];
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lastSampleL = intermediateL[0]; //run a little buffer to handle this
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if (inputSampleR > 4.0) inputSampleR = 4.0; if (inputSampleR < -4.0) inputSampleR = -4.0;
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if (wasPosClipR == true) { //current will be over
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if (inputSampleR<lastSampleR) lastSampleR=0.7058208+(inputSampleR*0.2609148);
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else lastSampleR = 0.2491717+(lastSampleR*0.7390851);
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} wasPosClipR = false;
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if (inputSampleR>0.9549925859) {wasPosClipR=true;inputSampleR=0.7058208+(lastSampleR*0.2609148);}
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if (wasNegClipR == true) { //current will be -over
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if (inputSampleR > lastSampleR) lastSampleR=-0.7058208+(inputSampleR*0.2609148);
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else lastSampleR=-0.2491717+(lastSampleR*0.7390851);
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} wasNegClipR = false;
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if (inputSampleR<-0.9549925859) {wasNegClipR=true;inputSampleR=-0.7058208+(lastSampleR*0.2609148);}
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intermediateR[spacing] = inputSampleR;
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inputSampleR = lastSampleR; //Latency is however many samples equals one 44.1k sample
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for (int x = spacing; x > 0; x--) intermediateR[x-1] = intermediateR[x];
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lastSampleR = intermediateR[0]; //run a little buffer to handle this
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//end ClipOnly2 stereo as a little, compressed chunk that can be dropped into code
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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 BeziComp::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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int spacing = floor(overallscale); //should give us working basic scaling, usually 2 or 4
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if (spacing < 1) spacing = 1; if (spacing > 16) spacing = 16;
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double bezCThresh = pow(A,2.0) * 64.0;
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double bezMakeUp = sqrt(bezCThresh+1.0);
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double bezRez = (pow(B,6.0)+0.0001)/overallscale; if (bezRez > 1.0) bezRez = 1.0;
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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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bezComp[bez_cycle] += bezRez;
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bezComp[bez_SampL] += (fmax(fabs(inputSampleL),fabs(inputSampleR)) * bezRez);
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if (bezComp[bez_cycle] > 1.0) {
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bezComp[bez_cycle] -= 1.0;
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bezComp[bez_CL] = bezComp[bez_BL];
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bezComp[bez_BL] = bezComp[bez_AL];
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bezComp[bez_AL] = bezComp[bez_SampL];
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bezComp[bez_SampL] = 0.0;
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}
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double CBL = (bezComp[bez_CL]*(1.0-bezComp[bez_cycle]))+(bezComp[bez_BL]*bezComp[bez_cycle]);
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double BAL = (bezComp[bez_BL]*(1.0-bezComp[bez_cycle]))+(bezComp[bez_AL]*bezComp[bez_cycle]);
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double CBAL = (bezComp[bez_BL]+(CBL*(1.0-bezComp[bez_cycle]))+(BAL*bezComp[bez_cycle]))*0.5;
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inputSampleL *= 1.0-(fmin(CBAL*bezCThresh,1.0));
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inputSampleL *= bezMakeUp;
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inputSampleR *= 1.0-(fmin(CBAL*bezCThresh,1.0));
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inputSampleR *= bezMakeUp;
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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 ClipOnly2 stereo as a little, compressed chunk that can be dropped into code
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if (inputSampleL > 4.0) inputSampleL = 4.0; if (inputSampleL < -4.0) inputSampleL = -4.0;
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if (wasPosClipL == true) { //current will be over
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if (inputSampleL<lastSampleL) lastSampleL=0.7058208+(inputSampleL*0.2609148);
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else lastSampleL = 0.2491717+(lastSampleL*0.7390851);
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} wasPosClipL = false;
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if (inputSampleL>0.9549925859) {wasPosClipL=true;inputSampleL=0.7058208+(lastSampleL*0.2609148);}
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if (wasNegClipL == true) { //current will be -over
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if (inputSampleL > lastSampleL) lastSampleL=-0.7058208+(inputSampleL*0.2609148);
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else lastSampleL=-0.2491717+(lastSampleL*0.7390851);
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} wasNegClipL = false;
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if (inputSampleL<-0.9549925859) {wasNegClipL=true;inputSampleL=-0.7058208+(lastSampleL*0.2609148);}
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intermediateL[spacing] = inputSampleL;
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inputSampleL = lastSampleL; //Latency is however many samples equals one 44.1k sample
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for (int x = spacing; x > 0; x--) intermediateL[x-1] = intermediateL[x];
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lastSampleL = intermediateL[0]; //run a little buffer to handle this
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if (inputSampleR > 4.0) inputSampleR = 4.0; if (inputSampleR < -4.0) inputSampleR = -4.0;
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if (wasPosClipR == true) { //current will be over
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if (inputSampleR<lastSampleR) lastSampleR=0.7058208+(inputSampleR*0.2609148);
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else lastSampleR = 0.2491717+(lastSampleR*0.7390851);
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} wasPosClipR = false;
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if (inputSampleR>0.9549925859) {wasPosClipR=true;inputSampleR=0.7058208+(lastSampleR*0.2609148);}
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if (wasNegClipR == true) { //current will be -over
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if (inputSampleR > lastSampleR) lastSampleR=-0.7058208+(inputSampleR*0.2609148);
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else lastSampleR=-0.2491717+(lastSampleR*0.7390851);
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} wasNegClipR = false;
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if (inputSampleR<-0.9549925859) {wasNegClipR=true;inputSampleR=-0.7058208+(lastSampleR*0.2609148);}
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intermediateR[spacing] = inputSampleR;
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inputSampleR = lastSampleR; //Latency is however many samples equals one 44.1k sample
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for (int x = spacing; x > 0; x--) intermediateR[x-1] = intermediateR[x];
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lastSampleR = intermediateR[0]; //run a little buffer to handle this
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//end ClipOnly2 stereo as a little, compressed chunk that can be dropped into code
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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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