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Diffstat (limited to 'plugins/WinVST/Desk4/Desk4Proc.cpp')
| -rwxr-xr-x | plugins/WinVST/Desk4/Desk4Proc.cpp | 512 |
1 files changed, 512 insertions, 0 deletions
diff --git a/plugins/WinVST/Desk4/Desk4Proc.cpp b/plugins/WinVST/Desk4/Desk4Proc.cpp new file mode 100755 index 0000000..515436c --- /dev/null +++ b/plugins/WinVST/Desk4/Desk4Proc.cpp @@ -0,0 +1,512 @@ +/* ======================================== + * Desk4 - Desk4.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __Desk4_H +#include "Desk4.h" +#endif + +void Desk4::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 gain = (pow(A,2)*10)+0.0001; + double gaintrim = (pow(A,2)*2)+1.0; + double slewgain = (pow(B,3)*40)+0.0001; + double prevslew = 0.105; + double intensity = (pow(C,6)*15)+0.0001; + double depthA = (pow(D,4)*940)+0.00001; + int offsetA = (int)(depthA * overallscale); + if (offsetA < 1) offsetA = 1; + if (offsetA > 4880) offsetA = 4880; + double balanceB = 0.0001; + slewgain *= overallscale; + prevslew *= overallscale; + balanceB /= overallscale; + double outputgain = E; + double wet = F; + double dry = 1.0 - wet; + + double clampL; + double clampR; + double thicknessL; + double thicknessR; + double out; + double balanceA = 1.0 - balanceB; + double bridgerectifier; + double slewL; + double slewR; + double combSampleL; + double combSampleR; + double drySampleL; + double drySampleR; + long double inputSampleL; + long double inputSampleR; + + 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. + } + drySampleL = inputSampleL; + drySampleR = inputSampleR; + + if (gcount < 0 || gcount > 4900) {gcount = 4900;} + + dL[gcount+4900] = dL[gcount] = fabs(inputSampleL)*intensity; + controlL += (dL[gcount] / offsetA); + controlL -= (dL[gcount+offsetA] / offsetA); + controlL -= 0.000001; + clampL = 1; + if (controlL < 0) {controlL = 0;} + if (controlL > 1) {clampL -= (controlL - 1); controlL = 1;} + if (clampL < 0.5) {clampL = 0.5;} + + dR[gcount+4900] = dR[gcount] = fabs(inputSampleR)*intensity; + controlR += (dR[gcount] / offsetA); + controlR -= (dR[gcount+offsetA] / offsetA); + controlR -= 0.000001; + clampR = 1; + if (controlR < 0) {controlR = 0;} + if (controlR > 1) {clampR -= (controlR - 1); controlR = 1;} + if (clampR < 0.5) {clampR = 0.5;} + + + gcount--; + //control = 0 to 1 + thicknessL = ((1.0 - controlL) * 2.0) - 1.0; + thicknessR = ((1.0 - controlR) * 2.0) - 1.0; + + out = fabs(thicknessL); + bridgerectifier = fabs(inputSampleL); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633; + //max value for sine function + if (thicknessL > 0) bridgerectifier = sin(bridgerectifier); + else bridgerectifier = 1-cos(bridgerectifier); + //produce either boosted or starved version + if (inputSampleL > 0) inputSampleL = (inputSampleL*(1-out))+(bridgerectifier*out); + else inputSampleL = (inputSampleL*(1-out))-(bridgerectifier*out); + //blend according to density control + + out = fabs(thicknessR); + bridgerectifier = fabs(inputSampleR); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633; + //max value for sine function + if (thicknessR > 0) bridgerectifier = sin(bridgerectifier); + else bridgerectifier = 1-cos(bridgerectifier); + //produce either boosted or starved version + if (inputSampleR > 0) inputSampleR = (inputSampleR*(1-out))+(bridgerectifier*out); + else inputSampleR = (inputSampleR*(1-out))-(bridgerectifier*out); + //blend according to density control + + inputSampleL *= clampL; + inputSampleR *= clampR; + + slewL = inputSampleL - lastSampleL; + lastSampleL = inputSampleL; + //Set up direct reference for slew + + slewR = inputSampleR - lastSampleR; + lastSampleR = inputSampleR; + //Set up direct reference for slew + + bridgerectifier = fabs(slewL*slewgain); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.0; + else bridgerectifier = sin(bridgerectifier); + if (slewL > 0) slewL = bridgerectifier/slewgain; + else slewL = -(bridgerectifier/slewgain); + + bridgerectifier = fabs(slewR*slewgain); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.0; + else bridgerectifier = sin(bridgerectifier); + if (slewR > 0) slewR = bridgerectifier/slewgain; + else slewR = -(bridgerectifier/slewgain); + + inputSampleL = (lastOutSampleL*balanceA) + (lastSampleL*balanceB) + slewL; + //go from last slewed, but include some raw values + lastOutSampleL = inputSampleL; + //Set up slewed reference + + inputSampleR = (lastOutSampleR*balanceA) + (lastSampleR*balanceB) + slewR; + //go from last slewed, but include some raw values + lastOutSampleR = inputSampleR; + //Set up slewed reference + + combSampleL = fabs(drySampleL*lastSampleL); + if (combSampleL > 1.0) combSampleL = 1.0; + //bailout for very high input gains + + combSampleR = fabs(drySampleR*lastSampleR); + if (combSampleR > 1.0) combSampleR = 1.0; + //bailout for very high input gains + + inputSampleL -= (lastSlewL * combSampleL * prevslew); + lastSlewL = slewL; + //slew interaction with previous slew + + inputSampleR -= (lastSlewR * combSampleR * prevslew); + lastSlewR = slewR; + //slew interaction with previous slew + + inputSampleL *= gain; + bridgerectifier = fabs(inputSampleL); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.0; + else bridgerectifier = sin(bridgerectifier); + if (inputSampleL > 0) inputSampleL = bridgerectifier; + else inputSampleL = -bridgerectifier; + //drive section + inputSampleL /= gain; + inputSampleL *= gaintrim; + //end of Desk section + + inputSampleR *= gain; + bridgerectifier = fabs(inputSampleR); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.0; + else bridgerectifier = sin(bridgerectifier); + if (inputSampleR > 0) inputSampleR = bridgerectifier; + else inputSampleR = -bridgerectifier; + //drive section + inputSampleR /= gain; + inputSampleR *= gaintrim; + //end of Desk section + + if (outputgain != 1.0) { + inputSampleL *= outputgain; + inputSampleR *= outputgain; + } + + if (wet !=1.0) { + inputSampleL = (inputSampleL * wet) + (drySampleL * dry); + inputSampleR = (inputSampleR * wet) + (drySampleR * dry); + } + + + //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 Desk4::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; + + double gain = (pow(A,2)*10)+0.0001; + double gaintrim = (pow(A,2)*2)+1.0; + double slewgain = (pow(B,3)*40)+0.0001; + double prevslew = 0.105; + double intensity = (pow(C,6)*15)+0.0001; + double depthA = (pow(D,4)*940)+0.00001; + int offsetA = (int)(depthA * overallscale); + if (offsetA < 1) offsetA = 1; + if (offsetA > 4880) offsetA = 4880; + double balanceB = 0.0001; + slewgain *= overallscale; + prevslew *= overallscale; + balanceB /= overallscale; + double outputgain = E; + double wet = F; + double dry = 1.0 - wet; + + double clampL; + double clampR; + double thicknessL; + double thicknessR; + double out; + double balanceA = 1.0 - balanceB; + double bridgerectifier; + double slewL; + double slewR; + double combSampleL; + double combSampleR; + double drySampleL; + double drySampleR; + long double inputSampleL; + long double inputSampleR; + + 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. + } + drySampleL = inputSampleL; + drySampleR = inputSampleR; + + if (gcount < 0 || gcount > 4900) {gcount = 4900;} + + dL[gcount+4900] = dL[gcount] = fabs(inputSampleL)*intensity; + controlL += (dL[gcount] / offsetA); + controlL -= (dL[gcount+offsetA] / offsetA); + controlL -= 0.000001; + clampL = 1; + if (controlL < 0) {controlL = 0;} + if (controlL > 1) {clampL -= (controlL - 1); controlL = 1;} + if (clampL < 0.5) {clampL = 0.5;} + + dR[gcount+4900] = dR[gcount] = fabs(inputSampleR)*intensity; + controlR += (dR[gcount] / offsetA); + controlR -= (dR[gcount+offsetA] / offsetA); + controlR -= 0.000001; + clampR = 1; + if (controlR < 0) {controlR = 0;} + if (controlR > 1) {clampR -= (controlR - 1); controlR = 1;} + if (clampR < 0.5) {clampR = 0.5;} + + + gcount--; + //control = 0 to 1 + thicknessL = ((1.0 - controlL) * 2.0) - 1.0; + thicknessR = ((1.0 - controlR) * 2.0) - 1.0; + + out = fabs(thicknessL); + bridgerectifier = fabs(inputSampleL); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633; + //max value for sine function + if (thicknessL > 0) bridgerectifier = sin(bridgerectifier); + else bridgerectifier = 1-cos(bridgerectifier); + //produce either boosted or starved version + if (inputSampleL > 0) inputSampleL = (inputSampleL*(1-out))+(bridgerectifier*out); + else inputSampleL = (inputSampleL*(1-out))-(bridgerectifier*out); + //blend according to density control + + out = fabs(thicknessR); + bridgerectifier = fabs(inputSampleR); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633; + //max value for sine function + if (thicknessR > 0) bridgerectifier = sin(bridgerectifier); + else bridgerectifier = 1-cos(bridgerectifier); + //produce either boosted or starved version + if (inputSampleR > 0) inputSampleR = (inputSampleR*(1-out))+(bridgerectifier*out); + else inputSampleR = (inputSampleR*(1-out))-(bridgerectifier*out); + //blend according to density control + + inputSampleL *= clampL; + inputSampleR *= clampR; + + slewL = inputSampleL - lastSampleL; + lastSampleL = inputSampleL; + //Set up direct reference for slew + + slewR = inputSampleR - lastSampleR; + lastSampleR = inputSampleR; + //Set up direct reference for slew + + bridgerectifier = fabs(slewL*slewgain); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.0; + else bridgerectifier = sin(bridgerectifier); + if (slewL > 0) slewL = bridgerectifier/slewgain; + else slewL = -(bridgerectifier/slewgain); + + bridgerectifier = fabs(slewR*slewgain); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.0; + else bridgerectifier = sin(bridgerectifier); + if (slewR > 0) slewR = bridgerectifier/slewgain; + else slewR = -(bridgerectifier/slewgain); + + inputSampleL = (lastOutSampleL*balanceA) + (lastSampleL*balanceB) + slewL; + //go from last slewed, but include some raw values + lastOutSampleL = inputSampleL; + //Set up slewed reference + + inputSampleR = (lastOutSampleR*balanceA) + (lastSampleR*balanceB) + slewR; + //go from last slewed, but include some raw values + lastOutSampleR = inputSampleR; + //Set up slewed reference + + combSampleL = fabs(drySampleL*lastSampleL); + if (combSampleL > 1.0) combSampleL = 1.0; + //bailout for very high input gains + + combSampleR = fabs(drySampleR*lastSampleR); + if (combSampleR > 1.0) combSampleR = 1.0; + //bailout for very high input gains + + inputSampleL -= (lastSlewL * combSampleL * prevslew); + lastSlewL = slewL; + //slew interaction with previous slew + + inputSampleR -= (lastSlewR * combSampleR * prevslew); + lastSlewR = slewR; + //slew interaction with previous slew + + inputSampleL *= gain; + bridgerectifier = fabs(inputSampleL); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.0; + else bridgerectifier = sin(bridgerectifier); + if (inputSampleL > 0) inputSampleL = bridgerectifier; + else inputSampleL = -bridgerectifier; + //drive section + inputSampleL /= gain; + inputSampleL *= gaintrim; + //end of Desk section + + inputSampleR *= gain; + bridgerectifier = fabs(inputSampleR); + if (bridgerectifier > 1.57079633) bridgerectifier = 1.0; + else bridgerectifier = sin(bridgerectifier); + if (inputSampleR > 0) inputSampleR = bridgerectifier; + else inputSampleR = -bridgerectifier; + //drive section + inputSampleR /= gain; + inputSampleR *= gaintrim; + //end of Desk section + + if (outputgain != 1.0) { + inputSampleL *= outputgain; + inputSampleR *= outputgain; + } + + if (wet !=1.0) { + inputSampleL = (inputSampleL * wet) + (drySampleL * dry); + inputSampleR = (inputSampleR * wet) + (drySampleR * dry); + } + + + //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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