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116 lines
No EOL
2.7 KiB
C++
Executable file
116 lines
No EOL
2.7 KiB
C++
Executable file
/* ========================================
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* Slew - Slew.h
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* Created 8/12/11 by SPIAdmin
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* Copyright (c) 2011 __MyCompanyName__, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __Slew_H
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#include "Slew.h"
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#endif
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void Slew::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
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{
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float* in1 = inputs[0];
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float* in2 = inputs[1];
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float* out1 = outputs[0];
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float* out2 = outputs[1];
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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double inputSampleL;
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double inputSampleR;
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double outputSampleL;
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double outputSampleR;
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double clamp;
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double threshold = pow((1-gain),4)/overallscale;
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while (--sampleFrames >= 0)
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{
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inputSampleL = *in1;
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inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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clamp = inputSampleL - lastSampleL;
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outputSampleL = inputSampleL;
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if (clamp > threshold)
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outputSampleL = lastSampleL + threshold;
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if (-clamp > threshold)
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outputSampleL = lastSampleL - threshold;
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lastSampleL = outputSampleL;
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clamp = inputSampleR - lastSampleR;
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outputSampleR = inputSampleR;
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if (clamp > threshold)
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outputSampleR = lastSampleR + threshold;
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if (-clamp > threshold)
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outputSampleR = lastSampleR - threshold;
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lastSampleR = outputSampleR;
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*out1 = outputSampleL;
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*out2 = outputSampleR;
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*in1++;
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*in2++;
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*out1++;
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*out2++;
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}
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}
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void Slew::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
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{
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double* in1 = inputs[0];
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double* in2 = inputs[1];
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double* out1 = outputs[0];
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double* out2 = outputs[1];
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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double inputSampleL;
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double inputSampleR;
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double outputSampleL;
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double outputSampleR;
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double clamp;
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double threshold = pow((1-gain),4)/overallscale;
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while (--sampleFrames >= 0)
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{
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inputSampleL = *in1;
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inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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clamp = inputSampleL - lastSampleL;
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outputSampleL = inputSampleL;
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if (clamp > threshold)
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outputSampleL = lastSampleL + threshold;
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if (-clamp > threshold)
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outputSampleL = lastSampleL - threshold;
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lastSampleL = outputSampleL;
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clamp = inputSampleR - lastSampleR;
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outputSampleR = inputSampleR;
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if (clamp > threshold)
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outputSampleR = lastSampleR + threshold;
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if (-clamp > threshold)
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outputSampleR = lastSampleR - threshold;
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lastSampleR = outputSampleR;
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*out1 = outputSampleL;
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*out2 = outputSampleR;
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*in1++;
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*in2++;
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*out1++;
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*out2++;
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}
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} |