mirror of
https://github.com/airwindows/airwindows.git
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352 lines
No EOL
12 KiB
C++
Executable file
352 lines
No EOL
12 KiB
C++
Executable file
/* ========================================
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* TubeDesk - TubeDesk.h
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* Copyright (c) 2016 airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __TubeDesk_H
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#include "TubeDesk.h"
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#endif
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void TubeDesk::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 intensity = 0.4384938;
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double depthA = 549.0;
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int offsetA = (int)(depthA * overallscale);
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if (offsetA < 1) offsetA = 1;
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if (offsetA > 2440) offsetA = 2440;
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double clamp;
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double thickness;
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double out;
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double gain = 0.5;
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double slewgain = 0.128;
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double prevslew = 0.105;
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double balanceB = 0.0001;
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slewgain *= overallscale;
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prevslew *= overallscale;
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balanceB /= overallscale;
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double balanceA = 1.0 - balanceB;
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double slew;
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double bridgerectifier;
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double combSample;
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double inputSampleL;
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double inputSampleR;
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double drySampleL;
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double drySampleR;
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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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drySampleL = inputSampleL;
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drySampleR = inputSampleR;
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if (gcount < 0 || gcount > 2450) {gcount = 2450;}
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//begin L
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dL[gcount+2450] = dL[gcount] = fabs(inputSampleL)*intensity;
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controlL += (dL[gcount] / offsetA);
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controlL -= (dL[gcount+offsetA] / offsetA);
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controlL -= 0.000001;
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clamp = 1;
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if (controlL < 0) {controlL = 0;}
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if (controlL > 1) {clamp -= (controlL - 1); controlL = 1;}
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if (clamp < 0.5) {clamp = 0.5;}
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//control = 0 to 1
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thickness = ((1.0 - controlL) * 2.0) - 1.0;
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out = fabs(thickness);
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bridgerectifier = fabs(inputSampleL);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
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//max value for sine function
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if (thickness > 0) bridgerectifier = sin(bridgerectifier);
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else bridgerectifier = 1-cos(bridgerectifier);
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//produce either boosted or starved version
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if (inputSampleL > 0) inputSampleL = (inputSampleL*(1-out))+(bridgerectifier*out);
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else inputSampleL = (inputSampleL*(1-out))-(bridgerectifier*out);
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//blend according to density control
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inputSampleL *= clamp;
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slew = inputSampleL - lastSampleL;
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lastSampleL = inputSampleL;
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//Set up direct reference for slew
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bridgerectifier = fabs(slew*slewgain);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (slew > 0) slew = bridgerectifier/slewgain;
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else slew = -(bridgerectifier/slewgain);
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inputSampleL = (lastOutSampleL*balanceA) + (lastSampleL*balanceB) + slew;
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//go from last slewed, but include some raw values
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lastOutSampleL = inputSampleL;
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//Set up slewed reference
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combSample = fabs(drySampleL*lastSampleL);
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if (combSample > 1.0) combSample = 1.0;
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//bailout for very high input gains
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inputSampleL -= (lastSlewL * combSample * prevslew);
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lastSlewL = slew;
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//slew interaction with previous slew
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inputSampleL *= gain;
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bridgerectifier = fabs(inputSampleL);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (inputSampleL > 0) inputSampleL = bridgerectifier;
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else inputSampleL = -bridgerectifier;
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//drive section
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inputSampleL /= gain;
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//end of Desk section
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//end L
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//begin R
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dR[gcount+2450] = dR[gcount] = fabs(inputSampleR)*intensity;
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controlR += (dR[gcount] / offsetA);
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controlR -= (dR[gcount+offsetA] / offsetA);
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controlR -= 0.000001;
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clamp = 1;
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if (controlR < 0) {controlR = 0;}
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if (controlR > 1) {clamp -= (controlR - 1); controlR = 1;}
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if (clamp < 0.5) {clamp = 0.5;}
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//control = 0 to 1
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thickness = ((1.0 - controlR) * 2.0) - 1.0;
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out = fabs(thickness);
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bridgerectifier = fabs(inputSampleR);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
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//max value for sine function
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if (thickness > 0) bridgerectifier = sin(bridgerectifier);
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else bridgerectifier = 1-cos(bridgerectifier);
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//produce either boosted or starved version
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if (inputSampleR > 0) inputSampleR = (inputSampleR*(1-out))+(bridgerectifier*out);
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else inputSampleR = (inputSampleR*(1-out))-(bridgerectifier*out);
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//blend according to density control
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inputSampleR *= clamp;
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slew = inputSampleR - lastSampleR;
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lastSampleR = inputSampleR;
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//Set up direct reference for slew
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bridgerectifier = fabs(slew*slewgain);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (slew > 0) slew = bridgerectifier/slewgain;
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else slew = -(bridgerectifier/slewgain);
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inputSampleR = (lastOutSampleR*balanceA) + (lastSampleR*balanceB) + slew;
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//go from last slewed, but include some raw values
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lastOutSampleR = inputSampleR;
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//Set up slewed reference
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combSample = fabs(drySampleR*lastSampleR);
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if (combSample > 1.0) combSample = 1.0;
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//bailout for very high input gains
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inputSampleR -= (lastSlewR * combSample * prevslew);
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lastSlewR = slew;
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//slew interaction with previous slew
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inputSampleR *= gain;
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bridgerectifier = fabs(inputSampleR);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (inputSampleR > 0) inputSampleR = bridgerectifier;
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else inputSampleR = -bridgerectifier;
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//drive section
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inputSampleR /= gain;
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//end of Desk section
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//end R
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gcount--;
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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 TubeDesk::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 intensity = 0.4384938;
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double depthA = 549.0;
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int offsetA = (int)(depthA * overallscale);
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if (offsetA < 1) offsetA = 1;
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if (offsetA > 2440) offsetA = 2440;
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double clamp;
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double thickness;
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double out;
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double gain = 0.5;
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double slewgain = 0.128;
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double prevslew = 0.105;
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double balanceB = 0.0001;
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slewgain *= overallscale;
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prevslew *= overallscale;
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balanceB /= overallscale;
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double balanceA = 1.0 - balanceB;
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double slew;
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double bridgerectifier;
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double combSample;
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double inputSampleL;
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double inputSampleR;
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double drySampleL;
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double drySampleR;
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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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drySampleL = inputSampleL;
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drySampleR = inputSampleR;
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if (gcount < 0 || gcount > 2450) {gcount = 2450;}
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//begin L
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dL[gcount+2450] = dL[gcount] = fabs(inputSampleL)*intensity;
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controlL += (dL[gcount] / offsetA);
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controlL -= (dL[gcount+offsetA] / offsetA);
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controlL -= 0.000001;
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clamp = 1;
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if (controlL < 0) {controlL = 0;}
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if (controlL > 1) {clamp -= (controlL - 1); controlL = 1;}
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if (clamp < 0.5) {clamp = 0.5;}
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//control = 0 to 1
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thickness = ((1.0 - controlL) * 2.0) - 1.0;
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out = fabs(thickness);
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bridgerectifier = fabs(inputSampleL);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
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//max value for sine function
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if (thickness > 0) bridgerectifier = sin(bridgerectifier);
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else bridgerectifier = 1-cos(bridgerectifier);
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//produce either boosted or starved version
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if (inputSampleL > 0) inputSampleL = (inputSampleL*(1-out))+(bridgerectifier*out);
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else inputSampleL = (inputSampleL*(1-out))-(bridgerectifier*out);
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//blend according to density control
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inputSampleL *= clamp;
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slew = inputSampleL - lastSampleL;
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lastSampleL = inputSampleL;
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//Set up direct reference for slew
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bridgerectifier = fabs(slew*slewgain);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (slew > 0) slew = bridgerectifier/slewgain;
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else slew = -(bridgerectifier/slewgain);
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inputSampleL = (lastOutSampleL*balanceA) + (lastSampleL*balanceB) + slew;
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//go from last slewed, but include some raw values
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lastOutSampleL = inputSampleL;
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//Set up slewed reference
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combSample = fabs(drySampleL*lastSampleL);
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if (combSample > 1.0) combSample = 1.0;
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//bailout for very high input gains
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inputSampleL -= (lastSlewL * combSample * prevslew);
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lastSlewL = slew;
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//slew interaction with previous slew
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inputSampleL *= gain;
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bridgerectifier = fabs(inputSampleL);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (inputSampleL > 0) inputSampleL = bridgerectifier;
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else inputSampleL = -bridgerectifier;
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//drive section
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inputSampleL /= gain;
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//end of Desk section
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//end L
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//begin R
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dR[gcount+2450] = dR[gcount] = fabs(inputSampleR)*intensity;
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controlR += (dR[gcount] / offsetA);
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controlR -= (dR[gcount+offsetA] / offsetA);
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controlR -= 0.000001;
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clamp = 1;
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if (controlR < 0) {controlR = 0;}
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if (controlR > 1) {clamp -= (controlR - 1); controlR = 1;}
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if (clamp < 0.5) {clamp = 0.5;}
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//control = 0 to 1
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thickness = ((1.0 - controlR) * 2.0) - 1.0;
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out = fabs(thickness);
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bridgerectifier = fabs(inputSampleR);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
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//max value for sine function
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if (thickness > 0) bridgerectifier = sin(bridgerectifier);
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else bridgerectifier = 1-cos(bridgerectifier);
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//produce either boosted or starved version
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if (inputSampleR > 0) inputSampleR = (inputSampleR*(1-out))+(bridgerectifier*out);
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else inputSampleR = (inputSampleR*(1-out))-(bridgerectifier*out);
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//blend according to density control
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inputSampleR *= clamp;
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slew = inputSampleR - lastSampleR;
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lastSampleR = inputSampleR;
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//Set up direct reference for slew
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bridgerectifier = fabs(slew*slewgain);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (slew > 0) slew = bridgerectifier/slewgain;
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else slew = -(bridgerectifier/slewgain);
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inputSampleR = (lastOutSampleR*balanceA) + (lastSampleR*balanceB) + slew;
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//go from last slewed, but include some raw values
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lastOutSampleR = inputSampleR;
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//Set up slewed reference
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combSample = fabs(drySampleR*lastSampleR);
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if (combSample > 1.0) combSample = 1.0;
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//bailout for very high input gains
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inputSampleR -= (lastSlewR * combSample * prevslew);
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lastSlewR = slew;
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//slew interaction with previous slew
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inputSampleR *= gain;
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bridgerectifier = fabs(inputSampleR);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (inputSampleR > 0) inputSampleR = bridgerectifier;
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else inputSampleR = -bridgerectifier;
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//drive section
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inputSampleR /= gain;
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//end of Desk section
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//end R
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gcount--;
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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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} |