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134 lines
4.7 KiB
C++
Executable file
134 lines
4.7 KiB
C++
Executable file
/* ========================================
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* OrbitKick - OrbitKick.h
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* Copyright (c) airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __OrbitKick_H
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#include "OrbitKick.h"
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#endif
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void OrbitKick::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 drop = 1.0+(A*(0.001/overallscale)); //more is briefer bass
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double zone = B*0.01; //the max exponentiality of the falloff
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double start = C; //higher attack
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double envelope = 9.0-((1.0-pow(1.0-D,2))*4.0); //higher is allowing more subs before gate
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envelope *= ((start*0.4)+0.6);
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double threshold = pow(E,3); // trigger threshold
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double wet = F*2.0;
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double dry = 2.0 - wet;
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if (wet > 1.0) wet = 1.0;
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if (dry > 1.0) dry = 1.0;
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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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if ((inputSampleL > speed*start*2.0) && (inputSampleL > threshold)) speed = inputSampleL*start;
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if ((inputSampleR > speed*start*2.0) && (inputSampleR > threshold)) speed = inputSampleR*start;
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position += (speed*start);
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speed /= (drop+(speed*zone*start));
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if (position > 31415.92653589793) position -= 31415.92653589793;
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orbit += (cos(position)*0.001); orbit *= 0.998272;
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double applySpeed = cbrt(speed) * envelope;
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if (applySpeed < 1.0) orbit *= applySpeed;
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inputSampleL = inputSampleR = orbit * 2.0;
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inputSampleL = (inputSampleL * wet) + (drySampleL * dry);
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inputSampleR = (inputSampleR * wet) + (drySampleR * dry);
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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 OrbitKick::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 drop = 1.0+(A*(0.001/overallscale)); //more is briefer bass
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double zone = B*0.01; //the max exponentiality of the falloff
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double start = C; //higher attack
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double envelope = 9.0-((1.0-pow(1.0-D,2))*4.0); //higher is allowing more subs before gate
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envelope *= ((start*0.4)+0.6);
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double threshold = pow(E,3); // trigger threshold
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double wet = F*2.0;
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double dry = 2.0 - wet;
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if (wet > 1.0) wet = 1.0;
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if (dry > 1.0) dry = 1.0;
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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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if ((inputSampleL > speed*start*2.0) && (inputSampleL > threshold)) speed = inputSampleL*start;
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if ((inputSampleR > speed*start*2.0) && (inputSampleR > threshold)) speed = inputSampleR*start;
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position += (speed*start);
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speed /= (drop+(speed*zone*start));
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if (position > 31415.92653589793) position -= 31415.92653589793;
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orbit += (cos(position)*0.001); orbit *= 0.998272;
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double applySpeed = cbrt(speed) * envelope;
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if (applySpeed < 1.0) orbit *= applySpeed;
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inputSampleL = inputSampleR = orbit * 2.0;
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inputSampleL = (inputSampleL * wet) + (drySampleL * dry);
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inputSampleR = (inputSampleR * wet) + (drySampleR * dry);
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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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