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Diffstat (limited to 'plugins/MacVST/Acceleration/source/AccelerationProc.cpp')
| -rwxr-xr-x | plugins/MacVST/Acceleration/source/AccelerationProc.cpp | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/plugins/MacVST/Acceleration/source/AccelerationProc.cpp b/plugins/MacVST/Acceleration/source/AccelerationProc.cpp new file mode 100755 index 0000000..4785e37 --- /dev/null +++ b/plugins/MacVST/Acceleration/source/AccelerationProc.cpp @@ -0,0 +1,324 @@ +/* ======================================== + * Acceleration - Acceleration.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __Acceleration_H +#include "Acceleration.h" +#endif + +void Acceleration::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 intensity = pow(A,3)*(32/overallscale); + double wet = B; + double dry = 1.0 - wet; + + double senseL; + double smoothL; + double senseR; + double smoothR; + double accumulatorSample; + 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; + + s3L = s2L; + s2L = s1L; + s1L = inputSampleL; + smoothL = (s3L + s2L + s1L) / 3.0; + m1L = (s1L-s2L)*((s1L-s2L)/1.3); + m2L = (s2L-s3L)*((s1L-s2L)/1.3); + senseL = fabs(m1L-m2L); + senseL = (intensity*intensity*senseL); + o3L = o2L; + o2L = o1L; + o1L = senseL; + if (o2L > senseL) senseL = o2L; + if (o3L > senseL) senseL = o3L; + //sense on the most intense + + s3R = s2R; + s2R = s1R; + s1R = inputSampleR; + smoothR = (s3R + s2R + s1R) / 3.0; + m1R = (s1R-s2R)*((s1R-s2R)/1.3); + m2R = (s2R-s3R)*((s1R-s2R)/1.3); + senseR = fabs(m1R-m2R); + senseR = (intensity*intensity*senseR); + o3R = o2R; + o2R = o1R; + o1R = senseR; + if (o2R > senseR) senseR = o2R; + if (o3R > senseR) senseR = o3R; + //sense on the most intense + + if (senseL > 1.0) senseL = 1.0; + if (senseR > 1.0) senseR = 1.0; + + inputSampleL *= (1.0-senseL); + inputSampleR *= (1.0-senseR); + + inputSampleL += (smoothL*senseL); + inputSampleR += (smoothR*senseR); + + senseL /= 2.0; + senseR /= 2.0; + + accumulatorSample = (ataLastOutL*senseL)+(inputSampleL*(1.0-senseL)); + ataLastOutL = inputSampleL; + inputSampleL = accumulatorSample; + + accumulatorSample = (ataLastOutR*senseR)+(inputSampleR*(1.0-senseR)); + ataLastOutR = inputSampleR; + inputSampleR = accumulatorSample; + + 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 Acceleration::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 intensity = pow(A,3)*(32/overallscale); + double wet = B; + double dry = 1.0 - wet; + + double senseL; + double smoothL; + double senseR; + double smoothR; + double accumulatorSample; + 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; + + s3L = s2L; + s2L = s1L; + s1L = inputSampleL; + smoothL = (s3L + s2L + s1L) / 3.0; + m1L = (s1L-s2L)*((s1L-s2L)/1.3); + m2L = (s2L-s3L)*((s1L-s2L)/1.3); + senseL = fabs(m1L-m2L); + senseL = (intensity*intensity*senseL); + o3L = o2L; + o2L = o1L; + o1L = senseL; + if (o2L > senseL) senseL = o2L; + if (o3L > senseL) senseL = o3L; + //sense on the most intense + + s3R = s2R; + s2R = s1R; + s1R = inputSampleR; + smoothR = (s3R + s2R + s1R) / 3.0; + m1R = (s1R-s2R)*((s1R-s2R)/1.3); + m2R = (s2R-s3R)*((s1R-s2R)/1.3); + senseR = fabs(m1R-m2R); + senseR = (intensity*intensity*senseR); + o3R = o2R; + o2R = o1R; + o1R = senseR; + if (o2R > senseR) senseR = o2R; + if (o3R > senseR) senseR = o3R; + //sense on the most intense + + if (senseL > 1.0) senseL = 1.0; + if (senseR > 1.0) senseR = 1.0; + + inputSampleL *= (1.0-senseL); + inputSampleR *= (1.0-senseR); + + inputSampleL += (smoothL*senseL); + inputSampleR += (smoothR*senseR); + + senseL /= 2.0; + senseR /= 2.0; + + accumulatorSample = (ataLastOutL*senseL)+(inputSampleL*(1.0-senseL)); + ataLastOutL = inputSampleL; + inputSampleL = accumulatorSample; + + accumulatorSample = (ataLastOutR*senseR)+(inputSampleR*(1.0-senseR)); + ataLastOutR = inputSampleR; + inputSampleR = accumulatorSample; + + 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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