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134 lines
4 KiB
C++
Executable file
134 lines
4 KiB
C++
Executable file
/* ========================================
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* Creature - Creature.h
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* Copyright (c) airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __Creature_H
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#include "Creature.h"
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#endif
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void Creature::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 source = 1.0-pow(1.0-A,5);
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int stages = (pow(B,2)*32.0*sqrt(overallscale))+1;
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double wet = (C*2.0)-1.0; //inv-dry-wet for highpass
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double dry = 2.0-(C*2.0);
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if (dry > 1.0) dry = 1.0; //full dry for use with inv, to 0.0 at full wet
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while (--sampleFrames >= 0)
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{
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double inputSampleL = *in1;
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double 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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double drySampleL = inputSampleL;
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double drySampleR = inputSampleR;
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for (int x = 0; x < stages; x++) {
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inputSampleL = (slewL[x]+(sin(slewL[x]-inputSampleL)*0.5))*source;
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slewL[x] = inputSampleL*0.5;
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inputSampleR = (slewR[x]+(sin(slewR[x]-inputSampleR)*0.5))*source;
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slewR[x] = inputSampleR*0.5;
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}
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if (stages % 2 > 0) {
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inputSampleL = -inputSampleL;
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inputSampleR = -inputSampleR;
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}
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inputSampleL *= wet;
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inputSampleR *= wet;
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drySampleL *= dry;
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drySampleR *= dry;
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inputSampleL += drySampleL;
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inputSampleR += drySampleR;
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//begin 32 bit stereo floating point dither
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int expon; frexpf((float)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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frexpf((float)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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//end 32 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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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 Creature::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 source = 1.0-pow(1.0-A,5);
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int stages = (pow(B,2)*32.0*sqrt(overallscale))+1;
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double wet = (C*2.0)-1.0; //inv-dry-wet for highpass
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double dry = 2.0-(C*2.0);
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if (dry > 1.0) dry = 1.0; //full dry for use with inv, to 0.0 at full wet
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while (--sampleFrames >= 0)
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{
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double inputSampleL = *in1;
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double 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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double drySampleL = inputSampleL;
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double drySampleR = inputSampleR;
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for (int x = 0; x < stages; x++) {
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inputSampleL = (slewL[x]+(sin(slewL[x]-inputSampleL)*0.5))*source;
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slewL[x] = inputSampleL*0.5;
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inputSampleR = (slewR[x]+(sin(slewR[x]-inputSampleR)*0.5))*source;
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slewR[x] = inputSampleR*0.5;
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}
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if (stages % 2 > 0) {
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inputSampleL = -inputSampleL;
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inputSampleR = -inputSampleR;
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}
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inputSampleL *= wet;
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inputSampleR *= wet;
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drySampleL *= dry;
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drySampleR *= dry;
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inputSampleL += drySampleL;
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inputSampleR += drySampleR;
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//begin 64 bit stereo floating point dither
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//int expon; frexp((double)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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//inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
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//frexp((double)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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//inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
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//end 64 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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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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