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Diffstat (limited to 'plugins/MacVST/AtmosphereBuss/source/AtmosphereBussProc.cpp')
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1 files changed, 552 insertions, 0 deletions
diff --git a/plugins/MacVST/AtmosphereBuss/source/AtmosphereBussProc.cpp b/plugins/MacVST/AtmosphereBuss/source/AtmosphereBussProc.cpp new file mode 100755 index 0000000..6530a7e --- /dev/null +++ b/plugins/MacVST/AtmosphereBuss/source/AtmosphereBussProc.cpp @@ -0,0 +1,552 @@ +/* ======================================== + * AtmosphereBuss - AtmosphereBuss.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __AtmosphereBuss_H +#include "AtmosphereBuss.h" +#endif + +void AtmosphereBuss::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) +{ + float* in1 = inputs[0]; + float* in2 = inputs[1]; + float* out1 = outputs[0]; + float* out2 = outputs[1]; + float fpTemp; + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + double drySampleL; + double drySampleR; + long double inputSampleL; + long double inputSampleR; + + long double clamp; + double inputgain = A; + + if (settingchase != inputgain) { + chasespeed *= 2.0; + settingchase = inputgain; + } + if (chasespeed > 2500.0) chasespeed = 2500.0; + if (gainchase < 0.0) gainchase = inputgain; + + thresholdA = 0.618033988749894 / overallscale; + thresholdB = 0.679837387624884 / overallscale; + thresholdC = 0.747821126387373 / overallscale; + thresholdD = 0.82260323902611 / overallscale; + thresholdE = 0.904863562928721 / overallscale; + thresholdF = 0.995349919221593 / overallscale; + thresholdG = 1.094884911143752 / overallscale; + thresholdH = 1.204373402258128 / overallscale; + thresholdI = 1.32481074248394 / overallscale; + thresholdJ = 1.457291816732335 / overallscale; + thresholdK = 1.603020998405568 / overallscale; + thresholdL = 1.763323098246125 / overallscale; + thresholdM = 1.939655408070737 / overallscale; + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + + static int noisesourceL = 0; + static int noisesourceR = 850010; + int residue; + double applyresidue; + + noisesourceL = noisesourceL % 1700021; noisesourceL++; + residue = noisesourceL * noisesourceL; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL += applyresidue; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + inputSampleL -= applyresidue; + } + + noisesourceR = noisesourceR % 1700021; noisesourceR++; + residue = noisesourceR * noisesourceR; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR += applyresidue; + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + inputSampleR -= applyresidue; + } + //for live air, we always apply the dither noise. Then, if our result is + //effectively digital black, we'll subtract it again. We want a 'air' hiss + + 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)+inputgain)/(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 + + drySampleL = inputSampleL; + drySampleR = inputSampleR; + + clamp = inputSampleL - lastSampleAL; + if (clamp > thresholdA) inputSampleL = lastSampleAL + thresholdA; + if (-clamp > thresholdA) inputSampleL = lastSampleAL - thresholdA; + + clamp = inputSampleL - lastSampleBL; + if (clamp > thresholdB) inputSampleL = lastSampleBL + thresholdB; + if (-clamp > thresholdB) inputSampleL = lastSampleBL - thresholdB; + + clamp = inputSampleL - lastSampleCL; + if (clamp > thresholdC) inputSampleL = lastSampleCL + thresholdC; + if (-clamp > thresholdC) inputSampleL = lastSampleCL - thresholdC; + + clamp = inputSampleL - lastSampleDL; + if (clamp > thresholdD) inputSampleL = lastSampleDL + thresholdD; + if (-clamp > thresholdD) inputSampleL = lastSampleDL - thresholdD; + + clamp = inputSampleL - lastSampleEL; + if (clamp > thresholdE) inputSampleL = lastSampleEL + thresholdE; + if (-clamp > thresholdE) inputSampleL = lastSampleEL - thresholdE; + + clamp = inputSampleL - lastSampleFL; + if (clamp > thresholdF) inputSampleL = lastSampleFL + thresholdF; + if (-clamp > thresholdF) inputSampleL = lastSampleFL - thresholdF; + + clamp = inputSampleL - lastSampleGL; + if (clamp > thresholdG) inputSampleL = lastSampleGL + thresholdG; + if (-clamp > thresholdG) inputSampleL = lastSampleGL - thresholdG; + + clamp = inputSampleL - lastSampleHL; + if (clamp > thresholdH) inputSampleL = lastSampleHL + thresholdH; + if (-clamp > thresholdH) inputSampleL = lastSampleHL - thresholdH; + + clamp = inputSampleL - lastSampleIL; + if (clamp > thresholdI) inputSampleL = lastSampleIL + thresholdI; + if (-clamp > thresholdI) inputSampleL = lastSampleIL - thresholdI; + + clamp = inputSampleL - lastSampleJL; + if (clamp > thresholdJ) inputSampleL = lastSampleJL + thresholdJ; + if (-clamp > thresholdJ) inputSampleL = lastSampleJL - thresholdJ; + + clamp = inputSampleL - lastSampleKL; + if (clamp > thresholdK) inputSampleL = lastSampleKL + thresholdK; + if (-clamp > thresholdK) inputSampleL = lastSampleKL - thresholdK; + + clamp = inputSampleL - lastSampleLL; + if (clamp > thresholdL) inputSampleL = lastSampleLL + thresholdL; + if (-clamp > thresholdL) inputSampleL = lastSampleLL - thresholdL; + + clamp = inputSampleL - lastSampleML; + if (clamp > thresholdM) inputSampleL = lastSampleML + thresholdM; + if (-clamp > thresholdM) inputSampleL = lastSampleML - thresholdM; + + + lastSampleML = lastSampleLL; + lastSampleLL = lastSampleKL; + lastSampleKL = lastSampleJL; + lastSampleJL = lastSampleIL; + lastSampleIL = lastSampleHL; + lastSampleHL = lastSampleGL; + lastSampleGL = lastSampleFL; + lastSampleFL = lastSampleEL; + lastSampleEL = lastSampleDL; + lastSampleDL = lastSampleCL; + lastSampleCL = lastSampleBL; + lastSampleBL = lastSampleAL; + lastSampleAL = drySampleL; + //store the raw L input sample again for use next time + + clamp = inputSampleR - lastSampleAR; + if (clamp > thresholdA) inputSampleR = lastSampleAR + thresholdA; + if (-clamp > thresholdA) inputSampleR = lastSampleAR - thresholdA; + + clamp = inputSampleR - lastSampleBR; + if (clamp > thresholdB) inputSampleR = lastSampleBR + thresholdB; + if (-clamp > thresholdB) inputSampleR = lastSampleBR - thresholdB; + + clamp = inputSampleR - lastSampleCR; + if (clamp > thresholdC) inputSampleR = lastSampleCR + thresholdC; + if (-clamp > thresholdC) inputSampleR = lastSampleCR - thresholdC; + + clamp = inputSampleR - lastSampleDR; + if (clamp > thresholdD) inputSampleR = lastSampleDR + thresholdD; + if (-clamp > thresholdD) inputSampleR = lastSampleDR - thresholdD; + + clamp = inputSampleR - lastSampleER; + if (clamp > thresholdE) inputSampleR = lastSampleER + thresholdE; + if (-clamp > thresholdE) inputSampleR = lastSampleER - thresholdE; + + clamp = inputSampleR - lastSampleFR; + if (clamp > thresholdF) inputSampleR = lastSampleFR + thresholdF; + if (-clamp > thresholdF) inputSampleR = lastSampleFR - thresholdF; + + clamp = inputSampleR - lastSampleGR; + if (clamp > thresholdG) inputSampleR = lastSampleGR + thresholdG; + if (-clamp > thresholdG) inputSampleR = lastSampleGR - thresholdG; + + clamp = inputSampleR - lastSampleHR; + if (clamp > thresholdH) inputSampleR = lastSampleHR + thresholdH; + if (-clamp > thresholdH) inputSampleR = lastSampleHR - thresholdH; + + clamp = inputSampleR - lastSampleIR; + if (clamp > thresholdI) inputSampleR = lastSampleIR + thresholdI; + if (-clamp > thresholdI) inputSampleR = lastSampleIR - thresholdI; + + clamp = inputSampleR - lastSampleJR; + if (clamp > thresholdJ) inputSampleR = lastSampleJR + thresholdJ; + if (-clamp > thresholdJ) inputSampleR = lastSampleJR - thresholdJ; + + clamp = inputSampleR - lastSampleKR; + if (clamp > thresholdK) inputSampleR = lastSampleKR + thresholdK; + if (-clamp > thresholdK) inputSampleR = lastSampleKR - thresholdK; + + clamp = inputSampleR - lastSampleLR; + if (clamp > thresholdL) inputSampleR = lastSampleLR + thresholdL; + if (-clamp > thresholdL) inputSampleR = lastSampleLR - thresholdL; + + clamp = inputSampleR - lastSampleMR; + if (clamp > thresholdM) inputSampleR = lastSampleMR + thresholdM; + if (-clamp > thresholdM) inputSampleR = lastSampleMR - thresholdM; + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + lastSampleMR = lastSampleLR; + lastSampleLR = lastSampleKR; + lastSampleKR = lastSampleJR; + lastSampleJR = lastSampleIR; + lastSampleIR = lastSampleHR; + lastSampleHR = lastSampleGR; + lastSampleGR = lastSampleFR; + lastSampleFR = lastSampleER; + lastSampleER = lastSampleDR; + lastSampleDR = lastSampleCR; + lastSampleCR = lastSampleBR; + lastSampleBR = lastSampleAR; + lastSampleAR = drySampleR; + //store the raw R input sample again for use next time + + //noise shaping to 32-bit floating point + fpTemp = inputSampleL; + fpNShapeL += (inputSampleL-fpTemp); + inputSampleL += fpNShapeL; + //if this confuses you look at the wordlength for fpTemp :) + fpTemp = inputSampleR; + fpNShapeR += (inputSampleR-fpTemp); + inputSampleR += fpNShapeR; + //for deeper space and warmth, we try a non-oscillating noise shaping + //that is kind of ruthless: it will forever retain the rounding errors + //except we'll dial it back a hair at the end of every buffer processed + //end noise shaping on 32 bit output + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } + fpNShapeL *= 0.999999; + fpNShapeR *= 0.999999; + //we will just delicately dial back the FP noise shaping, not even every sample + //this is a good place to put subtle 'no runaway' calculations, though bear in mind + //that it will be called more often when you use shorter sample buffers in the DAW. + //So, very low latency operation will call these calculations more often. +} + +void AtmosphereBuss::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) +{ + double* in1 = inputs[0]; + double* in2 = inputs[1]; + double* out1 = outputs[0]; + double* out2 = outputs[1]; + double fpTemp; + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + double drySampleL; + double drySampleR; + long double inputSampleL; + long double inputSampleR; + + long double clamp; + double inputgain = A; + + if (settingchase != inputgain) { + chasespeed *= 2.0; + settingchase = inputgain; + } + if (chasespeed > 2500.0) chasespeed = 2500.0; + if (gainchase < 0.0) gainchase = inputgain; + + thresholdA = 0.618033988749894 / overallscale; + thresholdB = 0.679837387624884 / overallscale; + thresholdC = 0.747821126387373 / overallscale; + thresholdD = 0.82260323902611 / overallscale; + thresholdE = 0.904863562928721 / overallscale; + thresholdF = 0.995349919221593 / overallscale; + thresholdG = 1.094884911143752 / overallscale; + thresholdH = 1.204373402258128 / overallscale; + thresholdI = 1.32481074248394 / overallscale; + thresholdJ = 1.457291816732335 / overallscale; + thresholdK = 1.603020998405568 / overallscale; + thresholdL = 1.763323098246125 / overallscale; + thresholdM = 1.939655408070737 / overallscale; + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + + static int noisesourceL = 0; + static int noisesourceR = 850010; + int residue; + double applyresidue; + + noisesourceL = noisesourceL % 1700021; noisesourceL++; + residue = noisesourceL * noisesourceL; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL += applyresidue; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + inputSampleL -= applyresidue; + } + + noisesourceR = noisesourceR % 1700021; noisesourceR++; + residue = noisesourceR * noisesourceR; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR += applyresidue; + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + inputSampleR -= applyresidue; + } + //for live air, we always apply the dither noise. Then, if our result is + //effectively digital black, we'll subtract it again. We want a 'air' hiss + + 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)+inputgain)/(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 + + drySampleL = inputSampleL; + drySampleR = inputSampleR; + + clamp = inputSampleL - lastSampleAL; + if (clamp > thresholdA) inputSampleL = lastSampleAL + thresholdA; + if (-clamp > thresholdA) inputSampleL = lastSampleAL - thresholdA; + + clamp = inputSampleL - lastSampleBL; + if (clamp > thresholdB) inputSampleL = lastSampleBL + thresholdB; + if (-clamp > thresholdB) inputSampleL = lastSampleBL - thresholdB; + + clamp = inputSampleL - lastSampleCL; + if (clamp > thresholdC) inputSampleL = lastSampleCL + thresholdC; + if (-clamp > thresholdC) inputSampleL = lastSampleCL - thresholdC; + + clamp = inputSampleL - lastSampleDL; + if (clamp > thresholdD) inputSampleL = lastSampleDL + thresholdD; + if (-clamp > thresholdD) inputSampleL = lastSampleDL - thresholdD; + + clamp = inputSampleL - lastSampleEL; + if (clamp > thresholdE) inputSampleL = lastSampleEL + thresholdE; + if (-clamp > thresholdE) inputSampleL = lastSampleEL - thresholdE; + + clamp = inputSampleL - lastSampleFL; + if (clamp > thresholdF) inputSampleL = lastSampleFL + thresholdF; + if (-clamp > thresholdF) inputSampleL = lastSampleFL - thresholdF; + + clamp = inputSampleL - lastSampleGL; + if (clamp > thresholdG) inputSampleL = lastSampleGL + thresholdG; + if (-clamp > thresholdG) inputSampleL = lastSampleGL - thresholdG; + + clamp = inputSampleL - lastSampleHL; + if (clamp > thresholdH) inputSampleL = lastSampleHL + thresholdH; + if (-clamp > thresholdH) inputSampleL = lastSampleHL - thresholdH; + + clamp = inputSampleL - lastSampleIL; + if (clamp > thresholdI) inputSampleL = lastSampleIL + thresholdI; + if (-clamp > thresholdI) inputSampleL = lastSampleIL - thresholdI; + + clamp = inputSampleL - lastSampleJL; + if (clamp > thresholdJ) inputSampleL = lastSampleJL + thresholdJ; + if (-clamp > thresholdJ) inputSampleL = lastSampleJL - thresholdJ; + + clamp = inputSampleL - lastSampleKL; + if (clamp > thresholdK) inputSampleL = lastSampleKL + thresholdK; + if (-clamp > thresholdK) inputSampleL = lastSampleKL - thresholdK; + + clamp = inputSampleL - lastSampleLL; + if (clamp > thresholdL) inputSampleL = lastSampleLL + thresholdL; + if (-clamp > thresholdL) inputSampleL = lastSampleLL - thresholdL; + + clamp = inputSampleL - lastSampleML; + if (clamp > thresholdM) inputSampleL = lastSampleML + thresholdM; + if (-clamp > thresholdM) inputSampleL = lastSampleML - thresholdM; + + + lastSampleML = lastSampleLL; + lastSampleLL = lastSampleKL; + lastSampleKL = lastSampleJL; + lastSampleJL = lastSampleIL; + lastSampleIL = lastSampleHL; + lastSampleHL = lastSampleGL; + lastSampleGL = lastSampleFL; + lastSampleFL = lastSampleEL; + lastSampleEL = lastSampleDL; + lastSampleDL = lastSampleCL; + lastSampleCL = lastSampleBL; + lastSampleBL = lastSampleAL; + lastSampleAL = drySampleL; + //store the raw L input sample again for use next time + + clamp = inputSampleR - lastSampleAR; + if (clamp > thresholdA) inputSampleR = lastSampleAR + thresholdA; + if (-clamp > thresholdA) inputSampleR = lastSampleAR - thresholdA; + + clamp = inputSampleR - lastSampleBR; + if (clamp > thresholdB) inputSampleR = lastSampleBR + thresholdB; + if (-clamp > thresholdB) inputSampleR = lastSampleBR - thresholdB; + + clamp = inputSampleR - lastSampleCR; + if (clamp > thresholdC) inputSampleR = lastSampleCR + thresholdC; + if (-clamp > thresholdC) inputSampleR = lastSampleCR - thresholdC; + + clamp = inputSampleR - lastSampleDR; + if (clamp > thresholdD) inputSampleR = lastSampleDR + thresholdD; + if (-clamp > thresholdD) inputSampleR = lastSampleDR - thresholdD; + + clamp = inputSampleR - lastSampleER; + if (clamp > thresholdE) inputSampleR = lastSampleER + thresholdE; + if (-clamp > thresholdE) inputSampleR = lastSampleER - thresholdE; + + clamp = inputSampleR - lastSampleFR; + if (clamp > thresholdF) inputSampleR = lastSampleFR + thresholdF; + if (-clamp > thresholdF) inputSampleR = lastSampleFR - thresholdF; + + clamp = inputSampleR - lastSampleGR; + if (clamp > thresholdG) inputSampleR = lastSampleGR + thresholdG; + if (-clamp > thresholdG) inputSampleR = lastSampleGR - thresholdG; + + clamp = inputSampleR - lastSampleHR; + if (clamp > thresholdH) inputSampleR = lastSampleHR + thresholdH; + if (-clamp > thresholdH) inputSampleR = lastSampleHR - thresholdH; + + clamp = inputSampleR - lastSampleIR; + if (clamp > thresholdI) inputSampleR = lastSampleIR + thresholdI; + if (-clamp > thresholdI) inputSampleR = lastSampleIR - thresholdI; + + clamp = inputSampleR - lastSampleJR; + if (clamp > thresholdJ) inputSampleR = lastSampleJR + thresholdJ; + if (-clamp > thresholdJ) inputSampleR = lastSampleJR - thresholdJ; + + clamp = inputSampleR - lastSampleKR; + if (clamp > thresholdK) inputSampleR = lastSampleKR + thresholdK; + if (-clamp > thresholdK) inputSampleR = lastSampleKR - thresholdK; + + clamp = inputSampleR - lastSampleLR; + if (clamp > thresholdL) inputSampleR = lastSampleLR + thresholdL; + if (-clamp > thresholdL) inputSampleR = lastSampleLR - thresholdL; + + clamp = inputSampleR - lastSampleMR; + if (clamp > thresholdM) inputSampleR = lastSampleMR + thresholdM; + if (-clamp > thresholdM) inputSampleR = lastSampleMR - thresholdM; + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + lastSampleMR = lastSampleLR; + lastSampleLR = lastSampleKR; + lastSampleKR = lastSampleJR; + lastSampleJR = lastSampleIR; + lastSampleIR = lastSampleHR; + lastSampleHR = lastSampleGR; + lastSampleGR = lastSampleFR; + lastSampleFR = lastSampleER; + lastSampleER = lastSampleDR; + lastSampleDR = lastSampleCR; + lastSampleCR = lastSampleBR; + lastSampleBR = lastSampleAR; + lastSampleAR = drySampleR; + //store the raw R input sample again for use next time + + //noise shaping to 64-bit floating point + fpTemp = inputSampleL; + fpNShapeL += (inputSampleL-fpTemp); + inputSampleL += fpNShapeL; + //if this confuses you look at the wordlength for fpTemp :) + fpTemp = inputSampleR; + fpNShapeR += (inputSampleR-fpTemp); + inputSampleR += fpNShapeR; + //for deeper space and warmth, we try a non-oscillating noise shaping + //that is kind of ruthless: it will forever retain the rounding errors + //except we'll dial it back a hair at the end of every buffer processed + //end noise shaping on 64 bit output + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } + fpNShapeL *= 0.999999; + fpNShapeR *= 0.999999; + //we will just delicately dial back the FP noise shaping, not even every sample + //this is a good place to put subtle 'no runaway' calculations, though bear in mind + //that it will be called more often when you use shorter sample buffers in the DAW. + //So, very low latency operation will call these calculations more often. +}
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