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280 lines
10 KiB
C++
Executable file
280 lines
10 KiB
C++
Executable file
/* ========================================
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* Inflamer - Inflamer.h
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* Copyright (c) airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __Inflamer_H
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#include "Inflamer.h"
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#endif
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void Inflamer::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 gainControl = (A*0.5)+0.05; //0.0 to 1.0
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int gainBits = 20; //start beyond maximum attenuation
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if (gainControl > 0.0) gainBits = floor(1.0 / gainControl)-2;
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if (gainBits < -2) gainBits = -2; if (gainBits > 17) gainBits = 17;
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double gain = 1.0;
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switch (gainBits)
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{
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case 17: gain = 0.0; break;
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case 16: gain = 0.0000152587890625; break;
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case 15: gain = 0.000030517578125; break;
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case 14: gain = 0.00006103515625; break;
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case 13: gain = 0.0001220703125; break;
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case 12: gain = 0.000244140625; break;
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case 11: gain = 0.00048828125; break;
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case 10: gain = 0.0009765625; break;
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case 9: gain = 0.001953125; break;
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case 8: gain = 0.00390625; break;
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case 7: gain = 0.0078125; break;
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case 6: gain = 0.015625; break;
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case 5: gain = 0.03125; break;
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case 4: gain = 0.0625; break;
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case 3: gain = 0.125; break;
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case 2: gain = 0.25; break;
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case 1: gain = 0.5; break;
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case 0: gain = 1.0; break;
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case -1: gain = 2.0; break;
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case -2: gain = 4.0; break;
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} //now we have our input trim
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int bitshiftL = 1;
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int bitshiftR = 1;
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double panControl = (B*2.0)-1.0; //-1.0 to 1.0
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double panAttenuation = (1.0-fabs(panControl));
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int panBits = 20; //start centered
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if (panAttenuation > 0.0) panBits = floor(1.0 / panAttenuation);
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if (panControl > 0.25) bitshiftL += panBits;
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if (panControl < -0.25) bitshiftR += panBits;
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if (bitshiftL < -2) bitshiftL = -2; if (bitshiftL > 17) bitshiftL = 17;
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if (bitshiftR < -2) bitshiftR = -2; if (bitshiftR > 17) bitshiftR = 17;
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double negacurve = 0.5;
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double curve = 0.5;
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switch (bitshiftL)
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{
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case 17: negacurve = 0.0; break;
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case 16: negacurve = 0.0000152587890625; break;
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case 15: negacurve = 0.000030517578125; break;
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case 14: negacurve = 0.00006103515625; break;
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case 13: negacurve = 0.0001220703125; break;
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case 12: negacurve = 0.000244140625; break;
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case 11: negacurve = 0.00048828125; break;
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case 10: negacurve = 0.0009765625; break;
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case 9: negacurve = 0.001953125; break;
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case 8: negacurve = 0.00390625; break;
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case 7: negacurve = 0.0078125; break;
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case 6: negacurve = 0.015625; break;
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case 5: negacurve = 0.03125; break;
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case 4: negacurve = 0.0625; break;
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case 3: negacurve = 0.125; break;
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case 2: negacurve = 0.25; break;
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case 1: negacurve = 0.5; break;
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case 0: negacurve = 1.0; break;
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case -1: negacurve = 2.0; break;
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case -2: negacurve = 4.0; break;
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}
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switch (bitshiftR)
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{
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case 17: curve = 0.0; break;
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case 16: curve = 0.0000152587890625; break;
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case 15: curve = 0.000030517578125; break;
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case 14: curve = 0.00006103515625; break;
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case 13: curve = 0.0001220703125; break;
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case 12: curve = 0.000244140625; break;
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case 11: curve = 0.00048828125; break;
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case 10: curve = 0.0009765625; break;
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case 9: curve = 0.001953125; break;
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case 8: curve = 0.00390625; break;
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case 7: curve = 0.0078125; break;
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case 6: curve = 0.015625; break;
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case 5: curve = 0.03125; break;
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case 4: curve = 0.0625; break;
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case 3: curve = 0.125; break;
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case 2: curve = 0.25; break;
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case 1: curve = 0.5; break;
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case 0: curve = 1.0; break;
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case -1: curve = 2.0; break;
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case -2: curve = 4.0; break;
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}
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double effectOut = C;
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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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inputSampleL *= gain; //input trim
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double inflamerPlus = (inputSampleL*2.0)-pow(inputSampleL,2); //+50, very much just second harmonic
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double inflamerMinus = inputSampleL+(pow(inputSampleL,3)*0.25)-((pow(inputSampleL,2)+pow(inputSampleL,4))*0.0625); //-50
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inputSampleL = (inflamerPlus * curve) + (inflamerMinus * negacurve);
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inputSampleL = (inputSampleL * effectOut) + (drySampleL * (1.0-effectOut));
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inputSampleR *= gain; //input trim
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inflamerPlus = (inputSampleR*2.0)-pow(inputSampleR,2); //+50, very much just second harmonic
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inflamerMinus = inputSampleR+(pow(inputSampleR,3)*0.25)-((pow(inputSampleR,2)+pow(inputSampleR,4))*0.0625); //-50
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inputSampleR = (inflamerPlus * curve) + (inflamerMinus * negacurve);
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inputSampleR = (inputSampleR * effectOut) + (drySampleR * (1.0-effectOut));
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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 Inflamer::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 gainControl = (A*0.5)+0.05; //0.0 to 1.0
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int gainBits = 20; //start beyond maximum attenuation
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if (gainControl > 0.0) gainBits = floor(1.0 / gainControl)-2;
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if (gainBits < -2) gainBits = -2; if (gainBits > 17) gainBits = 17;
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double gain = 1.0;
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switch (gainBits)
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{
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case 17: gain = 0.0; break;
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case 16: gain = 0.0000152587890625; break;
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case 15: gain = 0.000030517578125; break;
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case 14: gain = 0.00006103515625; break;
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case 13: gain = 0.0001220703125; break;
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case 12: gain = 0.000244140625; break;
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case 11: gain = 0.00048828125; break;
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case 10: gain = 0.0009765625; break;
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case 9: gain = 0.001953125; break;
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case 8: gain = 0.00390625; break;
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case 7: gain = 0.0078125; break;
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case 6: gain = 0.015625; break;
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case 5: gain = 0.03125; break;
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case 4: gain = 0.0625; break;
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case 3: gain = 0.125; break;
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case 2: gain = 0.25; break;
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case 1: gain = 0.5; break;
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case 0: gain = 1.0; break;
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case -1: gain = 2.0; break;
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case -2: gain = 4.0; break;
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} //now we have our input trim
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int bitshiftL = 1;
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int bitshiftR = 1;
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double panControl = (B*2.0)-1.0; //-1.0 to 1.0
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double panAttenuation = (1.0-fabs(panControl));
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int panBits = 20; //start centered
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if (panAttenuation > 0.0) panBits = floor(1.0 / panAttenuation);
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if (panControl > 0.25) bitshiftL += panBits;
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if (panControl < -0.25) bitshiftR += panBits;
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if (bitshiftL < -2) bitshiftL = -2; if (bitshiftL > 17) bitshiftL = 17;
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if (bitshiftR < -2) bitshiftR = -2; if (bitshiftR > 17) bitshiftR = 17;
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double negacurve = 0.5;
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double curve = 0.5;
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switch (bitshiftL)
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{
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case 17: negacurve = 0.0; break;
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case 16: negacurve = 0.0000152587890625; break;
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case 15: negacurve = 0.000030517578125; break;
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case 14: negacurve = 0.00006103515625; break;
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case 13: negacurve = 0.0001220703125; break;
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case 12: negacurve = 0.000244140625; break;
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case 11: negacurve = 0.00048828125; break;
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case 10: negacurve = 0.0009765625; break;
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case 9: negacurve = 0.001953125; break;
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case 8: negacurve = 0.00390625; break;
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case 7: negacurve = 0.0078125; break;
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case 6: negacurve = 0.015625; break;
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case 5: negacurve = 0.03125; break;
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case 4: negacurve = 0.0625; break;
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case 3: negacurve = 0.125; break;
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case 2: negacurve = 0.25; break;
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case 1: negacurve = 0.5; break;
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case 0: negacurve = 1.0; break;
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case -1: negacurve = 2.0; break;
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case -2: negacurve = 4.0; break;
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}
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switch (bitshiftR)
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{
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case 17: curve = 0.0; break;
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case 16: curve = 0.0000152587890625; break;
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case 15: curve = 0.000030517578125; break;
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case 14: curve = 0.00006103515625; break;
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case 13: curve = 0.0001220703125; break;
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case 12: curve = 0.000244140625; break;
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case 11: curve = 0.00048828125; break;
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case 10: curve = 0.0009765625; break;
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case 9: curve = 0.001953125; break;
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case 8: curve = 0.00390625; break;
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case 7: curve = 0.0078125; break;
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case 6: curve = 0.015625; break;
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case 5: curve = 0.03125; break;
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case 4: curve = 0.0625; break;
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case 3: curve = 0.125; break;
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case 2: curve = 0.25; break;
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case 1: curve = 0.5; break;
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case 0: curve = 1.0; break;
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case -1: curve = 2.0; break;
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case -2: curve = 4.0; break;
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}
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double effectOut = C;
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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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inputSampleL *= gain; //input trim
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double inflamerPlus = (inputSampleL*2.0)-pow(inputSampleL,2); //+50, very much just second harmonic
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double inflamerMinus = inputSampleL+(pow(inputSampleL,3)*0.25)-((pow(inputSampleL,2)+pow(inputSampleL,4))*0.0625); //-50
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inputSampleL = (inflamerPlus * curve) + (inflamerMinus * negacurve);
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inputSampleL = (inputSampleL * effectOut) + (drySampleL * (1.0-effectOut));
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inputSampleR *= gain; //input trim
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inflamerPlus = (inputSampleR*2.0)-pow(inputSampleR,2); //+50, very much just second harmonic
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inflamerMinus = inputSampleR+(pow(inputSampleR,3)*0.25)-((pow(inputSampleR,2)+pow(inputSampleR,4))*0.0625); //-50
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inputSampleR = (inflamerPlus * curve) + (inflamerMinus * negacurve);
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inputSampleR = (inputSampleR * effectOut) + (drySampleR * (1.0-effectOut));
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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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