diff options
Diffstat (limited to 'plugins/WinVST/Console4Buss/Console4BussProc.cpp')
| -rwxr-xr-x | plugins/WinVST/Console4Buss/Console4BussProc.cpp | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/plugins/WinVST/Console4Buss/Console4BussProc.cpp b/plugins/WinVST/Console4Buss/Console4BussProc.cpp new file mode 100755 index 0000000..712e496 --- /dev/null +++ b/plugins/WinVST/Console4Buss/Console4BussProc.cpp @@ -0,0 +1,299 @@ +/* ======================================== + * Console4Buss - Console4Buss.h + * Created 8/12/11 by SPIAdmin + * Copyright (c) 2011 __MyCompanyName__, All rights reserved + * ======================================== */ + +#ifndef __Console4Buss_H +#include "Console4Buss.h" +#endif + +void Console4Buss::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) +{ + float* in1 = inputs[0]; + float* in2 = inputs[1]; + float* out1 = outputs[0]; + float* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + float fpTemp; + double fpOld = 0.618033988749894848204586; //golden ratio! + double fpNew = 1.0 - fpOld; + + long double inputSampleL; + long double inputSampleR; + long double half; + long double falf; + long double slewcompensation; + if (settingchase != gain) { + chasespeed *= 2.0; + settingchase = gain; + } + if (chasespeed > 2500.0) chasespeed = 2500.0; + if (gainchase < 0.0) gainchase = gain; + + + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + static int noisesource = 0; + //this declares a variable before anything else is compiled. It won't keep assigning + //it to 0 for every sample, it's as if the declaration doesn't exist in this context, + //but it lets me add this denormalization fix in a single place rather than updating + //it in three different locations. The variable isn't thread-safe but this is only + //a random seed and we can share it with whatever. + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL = applyresidue; + } + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + static int noisesource = 0; + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR = applyresidue; + //this denormalization routine produces a white noise at -300 dB which the noise + //shaping will interact with to produce a bipolar output, but the noise is actually + //all positive. That should stop any variables from going denormal, and the routine + //only kicks in if digital black is input. As a final touch, if you save to 24-bit + //the silence will return to being digital black again. + } + + chasespeed *= 0.9999; + chasespeed -= 0.01; + if (chasespeed < 350.0) chasespeed = 350.0; + //we have our chase speed compensated for recent fader activity + + gainchase = (((gainchase*chasespeed)+gain)/(chasespeed+1.0)); + //gainchase is chasing the target, as a simple multiply gain factor + + if (1.0 != gainchase) {inputSampleL *= gainchase; inputSampleR *= gainchase;} + //done with trim control + + half = inputSampleL; + falf = fabs(half); + half *= falf; + half *= falf; + slewcompensation = fabs(inputSampleL - lastSampleL) * overallscale; + //magnify effect at high sample rate so it will still register when inter-sample changes + //are very small at high rates. + if (slewcompensation > 1.0) slewcompensation = 1.0; + //let's not invert the effect: maximum application is to cancel out half entirely + half *= (1.0 - slewcompensation); + //apply it + lastSampleL = inputSampleL; + inputSampleL += half; + //this is the inverse processing for Console: boosts but not so much if there's slew. + //is this too subtle an effect? + + + half = inputSampleR; + falf = fabs(half); + half *= falf; + half *= falf; + slewcompensation = fabs(inputSampleR - lastSampleR) * overallscale; + //magnify effect at high sample rate so it will still register when inter-sample changes + //are very small at high rates. + if (slewcompensation > 1.0) slewcompensation = 1.0; + //let's not invert the effect: maximum application is to cancel out half entirely + half *= (1.0 - slewcompensation); + //apply it + lastSampleR = inputSampleR; + inputSampleR += half; + //this is the inverse processing for Console: boosts but not so much if there's slew. + //is this too subtle an effect? + + //noise shaping to 32-bit floating point + if (fpFlip) { + fpTemp = inputSampleL; + fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLA; + fpTemp = inputSampleR; + fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRA; + } + else { + fpTemp = inputSampleL; + fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLB; + fpTemp = inputSampleR; + fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRB; + } + fpFlip = !fpFlip; + //end noise shaping on 32 bit output + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +} + +void Console4Buss::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) +{ + double* in1 = inputs[0]; + double* in2 = inputs[1]; + double* out1 = outputs[0]; + double* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + double fpTemp; //this is different from singlereplacing + long double fpOld = 0.618033988749894848204586; //golden ratio! + long double fpNew = 1.0 - fpOld; + + long double inputSampleL; + long double inputSampleR; + long double half; + long double falf; + long double slewcompensation; + if (settingchase != gain) { + chasespeed *= 2.0; + settingchase = gain; + } + if (chasespeed > 2500.0) chasespeed = 2500.0; + if (gainchase < 0.0) gainchase = gain; + + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + static int noisesource = 0; + //this declares a variable before anything else is compiled. It won't keep assigning + //it to 0 for every sample, it's as if the declaration doesn't exist in this context, + //but it lets me add this denormalization fix in a single place rather than updating + //it in three different locations. The variable isn't thread-safe but this is only + //a random seed and we can share it with whatever. + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL = applyresidue; + } + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + static int noisesource = 0; + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR = applyresidue; + //this denormalization routine produces a white noise at -300 dB which the noise + //shaping will interact with to produce a bipolar output, but the noise is actually + //all positive. That should stop any variables from going denormal, and the routine + //only kicks in if digital black is input. As a final touch, if you save to 24-bit + //the silence will return to being digital black again. + } + + chasespeed *= 0.9999; + chasespeed -= 0.01; + if (chasespeed < 350.0) chasespeed = 350.0; + //we have our chase speed compensated for recent fader activity + + gainchase = (((gainchase*chasespeed)+gain)/(chasespeed+1.0)); + //gainchase is chasing the target, as a simple multiply gain factor + + if (1.0 != gainchase) {inputSampleL *= gainchase; inputSampleR *= gainchase;} + //done with trim control + + half = inputSampleL; + falf = fabs(half); + half *= falf; + half *= falf; + slewcompensation = fabs(inputSampleL - lastSampleL) * overallscale; + //magnify effect at high sample rate so it will still register when inter-sample changes + //are very small at high rates. + if (slewcompensation > 1.0) slewcompensation = 1.0; + //let's not invert the effect: maximum application is to cancel out half entirely + half *= (1.0 - slewcompensation); + //apply it + lastSampleL = inputSampleL; + inputSampleL += half; + //this is the inverse processing for Console: boosts but not so much if there's slew. + //is this too subtle an effect? + + + half = inputSampleR; + falf = fabs(half); + half *= falf; + half *= falf; + slewcompensation = fabs(inputSampleR - lastSampleR) * overallscale; + //magnify effect at high sample rate so it will still register when inter-sample changes + //are very small at high rates. + if (slewcompensation > 1.0) slewcompensation = 1.0; + //let's not invert the effect: maximum application is to cancel out half entirely + half *= (1.0 - slewcompensation); + //apply it + lastSampleR = inputSampleR; + inputSampleR += half; + //this is the inverse processing for Console: boosts but not so much if there's slew. + //is this too subtle an effect? + + //noise shaping to 64-bit floating point + if (fpFlip) { + fpTemp = inputSampleL; + fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLA; + fpTemp = inputSampleR; + fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRA; + } + else { + fpTemp = inputSampleL; + fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLB; + fpTemp = inputSampleR; + fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRB; + } + fpFlip = !fpFlip; + //end noise shaping on 64 bit output + + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +}
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