diff options
Diffstat (limited to 'plugins/MacVST/Console5DarkCh/source/Console5DarkChProc.cpp')
| -rwxr-xr-x | plugins/MacVST/Console5DarkCh/source/Console5DarkChProc.cpp | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/plugins/MacVST/Console5DarkCh/source/Console5DarkChProc.cpp b/plugins/MacVST/Console5DarkCh/source/Console5DarkChProc.cpp new file mode 100755 index 0000000..e17ff88c --- /dev/null +++ b/plugins/MacVST/Console5DarkCh/source/Console5DarkChProc.cpp @@ -0,0 +1,358 @@ +/* ======================================== + * Console5DarkCh - Console5DarkCh.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __Console5DarkCh_H +#include "Console5DarkCh.h" +#endif + +void Console5DarkCh::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; + long double fpOld = 0.618033988749894848204586; //golden ratio! + long double fpNew = 1.0 - fpOld; + + double inputgain = A; + double differenceL; + double differenceR; + double nearZeroL; + double nearZeroR; + double servoTrim = 0.0000001 / overallscale; + double bassTrim = 0.005 / overallscale; + long double inputSampleL; + long double inputSampleR; + + if (settingchase != inputgain) { + chasespeed *= 2.0; + settingchase = inputgain; + } + if (chasespeed > 2500.0) chasespeed = 2500.0; + if (gainchase < 0.0) gainchase = inputgain; + + 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)+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 + + differenceL = lastSampleChannelL - inputSampleL; + lastSampleChannelL = inputSampleL; + differenceR = lastSampleChannelR - inputSampleR; + lastSampleChannelR = inputSampleR; + //derive slew part off direct sample measurement + from last time + + if (differenceL > 1.0) differenceL = 1.0; + if (differenceL < -1.0) differenceL = -1.0; + if (differenceR > 1.0) differenceR = 1.0; + if (differenceR < -1.0) differenceR = -1.0; + //clamp the slew correction to prevent invalid math results + + differenceL = lastFXChannelL + sin(differenceL); + differenceR = lastFXChannelR + sin(differenceR); + //we're about to use this twice and then not use difference again, so we'll reuse it + //enhance slew is arcsin(): cutting it back is sin() + + iirCorrectL += inputSampleL - differenceL; + inputSampleL = differenceL; + iirCorrectR += inputSampleR - differenceR; + inputSampleR = differenceR; + //apply the slew to stored value: can develop DC offsets. + //store the change we made so we can dial it back + + lastFXChannelL = inputSampleL; + lastFXChannelR = inputSampleR; + if (lastFXChannelL > 1.0) lastFXChannelL = 1.0; + if (lastFXChannelL < -1.0) lastFXChannelL = -1.0; + if (lastFXChannelR > 1.0) lastFXChannelR = 1.0; + if (lastFXChannelR < -1.0) lastFXChannelR = -1.0; + //store current sample as new base for next offset + + nearZeroL = pow(fabs(fabs(lastFXChannelL)-1.0), 2); + nearZeroR = pow(fabs(fabs(lastFXChannelR)-1.0), 2); + //if the sample is very near zero this number is higher. + if (iirCorrectL > 0) iirCorrectL -= servoTrim; + if (iirCorrectL < 0) iirCorrectL += servoTrim; + if (iirCorrectR > 0) iirCorrectR -= servoTrim; + if (iirCorrectR < 0) iirCorrectR += servoTrim; + //cut back the servo by which we're pulling back the DC + lastFXChannelL += (iirCorrectL * 0.0000005); + lastFXChannelR += (iirCorrectR * 0.0000005); + //apply the servo to the stored value, pulling back the DC + lastFXChannelL *= (1.0 - (nearZeroL * bassTrim)); + lastFXChannelR *= (1.0 - (nearZeroR * bassTrim)); + //this cuts back the DC offset directly, relative to how near zero we are + + if (inputSampleL > 1.57079633) inputSampleL= 1.57079633; + if (inputSampleL < -1.57079633) inputSampleL = -1.57079633; + inputSampleL = sin(inputSampleL); + //amplitude aspect + + if (inputSampleR > 1.57079633) inputSampleR = 1.57079633; + if (inputSampleR < -1.57079633) inputSampleR = -1.57079633; + inputSampleR = sin(inputSampleR); + //amplitude aspect + + //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 Console5DarkCh::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; + long double fpOld = 0.618033988749894848204586; //golden ratio! + long double fpNew = 1.0 - fpOld; + + double inputgain = A; + double differenceL; + double differenceR; + double nearZeroL; + double nearZeroR; + double servoTrim = 0.0000001 / overallscale; + double bassTrim = 0.005 / overallscale; + long double inputSampleL; + long double inputSampleR; + + if (settingchase != inputgain) { + chasespeed *= 2.0; + settingchase = inputgain; + } + if (chasespeed > 2500.0) chasespeed = 2500.0; + if (gainchase < 0.0) gainchase = inputgain; + + 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)+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 + + differenceL = lastSampleChannelL - inputSampleL; + lastSampleChannelL = inputSampleL; + differenceR = lastSampleChannelR - inputSampleR; + lastSampleChannelR = inputSampleR; + //derive slew part off direct sample measurement + from last time + + if (differenceL > 1.0) differenceL = 1.0; + if (differenceL < -1.0) differenceL = -1.0; + if (differenceR > 1.0) differenceR = 1.0; + if (differenceR < -1.0) differenceR = -1.0; + //clamp the slew correction to prevent invalid math results + + differenceL = lastFXChannelL + sin(differenceL); + differenceR = lastFXChannelR + sin(differenceR); + //we're about to use this twice and then not use difference again, so we'll reuse it + //enhance slew is arcsin(): cutting it back is sin() + + iirCorrectL += inputSampleL - differenceL; + inputSampleL = differenceL; + iirCorrectR += inputSampleR - differenceR; + inputSampleR = differenceR; + //apply the slew to stored value: can develop DC offsets. + //store the change we made so we can dial it back + + lastFXChannelL = inputSampleL; + lastFXChannelR = inputSampleR; + if (lastFXChannelL > 1.0) lastFXChannelL = 1.0; + if (lastFXChannelL < -1.0) lastFXChannelL = -1.0; + if (lastFXChannelR > 1.0) lastFXChannelR = 1.0; + if (lastFXChannelR < -1.0) lastFXChannelR = -1.0; + //store current sample as new base for next offset + + nearZeroL = pow(fabs(fabs(lastFXChannelL)-1.0), 2); + nearZeroR = pow(fabs(fabs(lastFXChannelR)-1.0), 2); + //if the sample is very near zero this number is higher. + if (iirCorrectL > 0) iirCorrectL -= servoTrim; + if (iirCorrectL < 0) iirCorrectL += servoTrim; + if (iirCorrectR > 0) iirCorrectR -= servoTrim; + if (iirCorrectR < 0) iirCorrectR += servoTrim; + //cut back the servo by which we're pulling back the DC + lastFXChannelL += (iirCorrectL * 0.0000005); + lastFXChannelR += (iirCorrectR * 0.0000005); + //apply the servo to the stored value, pulling back the DC + lastFXChannelL *= (1.0 - (nearZeroL * bassTrim)); + lastFXChannelR *= (1.0 - (nearZeroR * bassTrim)); + //this cuts back the DC offset directly, relative to how near zero we are + + if (inputSampleL > 1.57079633) inputSampleL= 1.57079633; + if (inputSampleL < -1.57079633) inputSampleL = -1.57079633; + inputSampleL = sin(inputSampleL); + //amplitude aspect + + if (inputSampleR > 1.57079633) inputSampleR = 1.57079633; + if (inputSampleR < -1.57079633) inputSampleR = -1.57079633; + inputSampleR = sin(inputSampleR); + //amplitude aspect + + //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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