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200 lines
No EOL
6.4 KiB
C++
Executable file
200 lines
No EOL
6.4 KiB
C++
Executable file
/* ========================================
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* PowerSag - PowerSag.h
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* Copyright (c) 2016 airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __PowerSag_H
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#include "PowerSag.h"
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#endif
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void PowerSag::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 intensity = pow(A,5)*80.0;
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double depthA = pow(B,2);
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int offsetA = (int)(depthA * 3900) + 1;
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double clamp;
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double thickness;
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double out;
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double bridgerectifier;
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double inputSampleL;
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double inputSampleR;
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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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if (gcount < 0 || gcount > 4000) {gcount = 4000;}
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//doing L
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dL[gcount+4000] = dL[gcount] = fabs(inputSampleL)*intensity;
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controlL += (dL[gcount] / offsetA);
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controlL -= (dL[gcount+offsetA] / offsetA);
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controlL -= 0.000001;
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clamp = 1;
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if (controlL < 0) {controlL = 0;}
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if (controlL > 1) {clamp -= (controlL - 1); controlL = 1;}
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if (clamp < 0.5) {clamp = 0.5;}
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thickness = ((1.0 - controlL) * 2.0) - 1.0;
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out = fabs(thickness);
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bridgerectifier = fabs(inputSampleL);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
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//max value for sine function
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if (thickness > 0) bridgerectifier = sin(bridgerectifier);
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else bridgerectifier = 1-cos(bridgerectifier);
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//produce either boosted or starved version
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if (inputSampleL > 0) inputSampleL = (inputSampleL*(1-out))+(bridgerectifier*out);
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else inputSampleL = (inputSampleL*(1-out))-(bridgerectifier*out);
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//blend according to density control
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inputSampleL *= clamp;
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//end L
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//doing R
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dR[gcount+4000] = dR[gcount] = fabs(inputSampleR)*intensity;
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controlR += (dR[gcount] / offsetA);
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controlR -= (dR[gcount+offsetA] / offsetA);
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controlR -= 0.000001;
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clamp = 1;
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if (controlR < 0) {controlR = 0;}
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if (controlR > 1) {clamp -= (controlR - 1); controlR = 1;}
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if (clamp < 0.5) {clamp = 0.5;}
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thickness = ((1.0 - controlR) * 2.0) - 1.0;
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out = fabs(thickness);
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bridgerectifier = fabs(inputSampleR);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
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//max value for sine function
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if (thickness > 0) bridgerectifier = sin(bridgerectifier);
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else bridgerectifier = 1-cos(bridgerectifier);
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//produce either boosted or starved version
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if (inputSampleR > 0) inputSampleR = (inputSampleR*(1-out))+(bridgerectifier*out);
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else inputSampleR = (inputSampleR*(1-out))-(bridgerectifier*out);
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//blend according to density control
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inputSampleR *= clamp;
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//end R
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gcount--;
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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 PowerSag::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 intensity = pow(A,5)*80.0;
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double depthA = pow(B,2);
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int offsetA = (int)(depthA * 3900) + 1;
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double clamp;
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double thickness;
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double out;
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double bridgerectifier;
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double inputSampleL;
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double inputSampleR;
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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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if (gcount < 0 || gcount > 4000) {gcount = 4000;}
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//doing L
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dL[gcount+4000] = dL[gcount] = fabs(inputSampleL)*intensity;
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controlL += (dL[gcount] / offsetA);
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controlL -= (dL[gcount+offsetA] / offsetA);
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controlL -= 0.000001;
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clamp = 1;
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if (controlL < 0) {controlL = 0;}
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if (controlL > 1) {clamp -= (controlL - 1); controlL = 1;}
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if (clamp < 0.5) {clamp = 0.5;}
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thickness = ((1.0 - controlL) * 2.0) - 1.0;
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out = fabs(thickness);
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bridgerectifier = fabs(inputSampleL);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
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//max value for sine function
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if (thickness > 0) bridgerectifier = sin(bridgerectifier);
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else bridgerectifier = 1-cos(bridgerectifier);
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//produce either boosted or starved version
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if (inputSampleL > 0) inputSampleL = (inputSampleL*(1-out))+(bridgerectifier*out);
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else inputSampleL = (inputSampleL*(1-out))-(bridgerectifier*out);
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//blend according to density control
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inputSampleL *= clamp;
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//end L
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//doing R
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dR[gcount+4000] = dR[gcount] = fabs(inputSampleR)*intensity;
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controlR += (dR[gcount] / offsetA);
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controlR -= (dR[gcount+offsetA] / offsetA);
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controlR -= 0.000001;
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clamp = 1;
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if (controlR < 0) {controlR = 0;}
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if (controlR > 1) {clamp -= (controlR - 1); controlR = 1;}
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if (clamp < 0.5) {clamp = 0.5;}
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thickness = ((1.0 - controlR) * 2.0) - 1.0;
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out = fabs(thickness);
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bridgerectifier = fabs(inputSampleR);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.57079633;
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//max value for sine function
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if (thickness > 0) bridgerectifier = sin(bridgerectifier);
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else bridgerectifier = 1-cos(bridgerectifier);
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//produce either boosted or starved version
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if (inputSampleR > 0) inputSampleR = (inputSampleR*(1-out))+(bridgerectifier*out);
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else inputSampleR = (inputSampleR*(1-out))-(bridgerectifier*out);
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//blend according to density control
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inputSampleR *= clamp;
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//end R
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gcount--;
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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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} |