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198 lines
No EOL
6.3 KiB
C++
Executable file
198 lines
No EOL
6.3 KiB
C++
Executable file
/* ========================================
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* Console4Buss - Console4Buss.h
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* Created 8/12/11 by SPIAdmin
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* Copyright (c) 2011 __MyCompanyName__, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __Console4Buss_H
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#include "Console4Buss.h"
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#endif
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void Console4Buss::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 inputSampleL;
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double inputSampleR;
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double half;
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double falf;
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double slewcompensation;
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if (settingchase != gain) {
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chasespeed *= 2.0;
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settingchase = gain;
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}
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if (chasespeed > 2500.0) chasespeed = 2500.0;
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if (gainchase < 0.0) gainchase = gain;
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while (--sampleFrames >= 0)
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{
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inputSampleL = *in1;
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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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chasespeed *= 0.9999;
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chasespeed -= 0.01;
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if (chasespeed < 350.0) chasespeed = 350.0;
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//we have our chase speed compensated for recent fader activity
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gainchase = (((gainchase*chasespeed)+gain)/(chasespeed+1.0));
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//gainchase is chasing the target, as a simple multiply gain factor
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if (1.0 != gainchase) {inputSampleL *= gainchase; inputSampleR *= gainchase;}
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//done with trim control
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half = inputSampleL;
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falf = fabs(half);
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half *= falf;
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half *= falf;
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slewcompensation = fabs(inputSampleL - lastSampleL) * overallscale;
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//magnify effect at high sample rate so it will still register when inter-sample changes
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//are very small at high rates.
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if (slewcompensation > 1.0) slewcompensation = 1.0;
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//let's not invert the effect: maximum application is to cancel out half entirely
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half *= (1.0 - slewcompensation);
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//apply it
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lastSampleL = inputSampleL;
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inputSampleL += half;
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//this is the inverse processing for Console: boosts but not so much if there's slew.
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//is this too subtle an effect?
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half = inputSampleR;
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falf = fabs(half);
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half *= falf;
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half *= falf;
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slewcompensation = fabs(inputSampleR - lastSampleR) * overallscale;
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//magnify effect at high sample rate so it will still register when inter-sample changes
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//are very small at high rates.
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if (slewcompensation > 1.0) slewcompensation = 1.0;
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//let's not invert the effect: maximum application is to cancel out half entirely
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half *= (1.0 - slewcompensation);
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//apply it
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lastSampleR = inputSampleR;
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inputSampleR += half;
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//this is the inverse processing for Console: boosts but not so much if there's slew.
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//is this too subtle an effect?
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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 Console4Buss::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 inputSampleL;
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double inputSampleR;
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double half;
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double falf;
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double slewcompensation;
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if (settingchase != gain) {
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chasespeed *= 2.0;
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settingchase = gain;
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}
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if (chasespeed > 2500.0) chasespeed = 2500.0;
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if (gainchase < 0.0) gainchase = gain;
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while (--sampleFrames >= 0)
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{
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inputSampleL = *in1;
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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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chasespeed *= 0.9999;
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chasespeed -= 0.01;
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if (chasespeed < 350.0) chasespeed = 350.0;
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//we have our chase speed compensated for recent fader activity
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gainchase = (((gainchase*chasespeed)+gain)/(chasespeed+1.0));
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//gainchase is chasing the target, as a simple multiply gain factor
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if (1.0 != gainchase) {inputSampleL *= gainchase; inputSampleR *= gainchase;}
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//done with trim control
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half = inputSampleL;
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falf = fabs(half);
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half *= falf;
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half *= falf;
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slewcompensation = fabs(inputSampleL - lastSampleL) * overallscale;
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//magnify effect at high sample rate so it will still register when inter-sample changes
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//are very small at high rates.
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if (slewcompensation > 1.0) slewcompensation = 1.0;
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//let's not invert the effect: maximum application is to cancel out half entirely
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half *= (1.0 - slewcompensation);
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//apply it
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lastSampleL = inputSampleL;
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inputSampleL += half;
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//this is the inverse processing for Console: boosts but not so much if there's slew.
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//is this too subtle an effect?
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half = inputSampleR;
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falf = fabs(half);
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half *= falf;
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half *= falf;
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slewcompensation = fabs(inputSampleR - lastSampleR) * overallscale;
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//magnify effect at high sample rate so it will still register when inter-sample changes
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//are very small at high rates.
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if (slewcompensation > 1.0) slewcompensation = 1.0;
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//let's not invert the effect: maximum application is to cancel out half entirely
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half *= (1.0 - slewcompensation);
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//apply it
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lastSampleR = inputSampleR;
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inputSampleR += half;
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//this is the inverse processing for Console: boosts but not so much if there's slew.
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//is this too subtle an effect?
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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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} |