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197 lines
9.9 KiB
C++
Executable file
197 lines
9.9 KiB
C++
Executable file
/* ========================================
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* FinalClip - FinalClip.h
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* Copyright (c) airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __FinalClip_H
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#include "FinalClip.h"
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#endif
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void FinalClip::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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int spacing = floor(overallscale); //should give us working basic scaling, usually 2 or 4
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if (spacing < 1) spacing = 1; if (spacing > 16) spacing = 16;
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//double hardness = 0.7390851332151606; // x == cos(x)
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//double softness = 0.260914866784839; // 1.0 - hardness
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//double refclip = 0.9549925859; // -0.2dB we're making all this pure raw code
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//refclip*hardness = 0.705820822569392 to use ClipOnly as a prefab code-chunk.
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//refclip*softness = 0.249171763330607 Seven decimal places is plenty as it's
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//not related to the original sound much: it's an arbitrary position in softening.
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//This is where the numbers come from, referencing the code of the original ClipOnly
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//double hardness = 0.618033988749894; // golden ratio
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//double softness = 0.381966011250105; // 1.0 - hardness
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//double refclip = 1.618033988749894; // -0.2dB we're making all this pure raw code
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//refclip*hardness = 1.0 to use ClipOnly as a prefab code-chunk.
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//refclip*softness = 0.618033988749894 Seven decimal places is plenty as it's
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//not related to the original sound much: it's an arbitrary position in softening.
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while (--sampleFrames >= 0)
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{
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float inputSampleL = *in1;
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float inputSampleR = *in2;
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// if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpdL * 1.18e-37;
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// if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpdR * 1.18e-37;
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//do NOT use on ClipOnly, it is almost always a pure bypass
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if (inputSampleL > 4.0) inputSampleL = 4.0; if (inputSampleL < -4.0) inputSampleL = -4.0;
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if (inputSampleL - lastSampleL > 0.618033988749894) inputSampleL = lastSampleL + 0.618033988749894;
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if (inputSampleL - lastSampleL < -0.618033988749894) inputSampleL = lastSampleL - 0.618033988749894;
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//same as slew clippage
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//begin ClipOnly2 stereo as a little, compressed chunk that can be dropped into code
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if (wasPosClipL == true) { //current will be over
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if (inputSampleL<lastSampleL) lastSampleL=1.0+(inputSampleL*0.381966011250105);
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else lastSampleL = 0.618033988749894+(lastSampleL*0.618033988749894);
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} wasPosClipL = false;
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if (inputSampleL>1.618033988749894) {wasPosClipL=true;inputSampleL=1.0+(lastSampleL*0.381966011250105);}
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if (wasNegClipL == true) { //current will be -over
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if (inputSampleL > lastSampleL) lastSampleL=-1.0+(inputSampleL*0.381966011250105);
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else lastSampleL=-0.618033988749894+(lastSampleL*0.618033988749894);
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} wasNegClipL = false;
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if (inputSampleL<-1.618033988749894) {wasNegClipL=true;inputSampleL=-1.0+(lastSampleL*0.381966011250105);}
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intermediateL[spacing] = inputSampleL;
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inputSampleL = lastSampleL; //Latency is however many samples equals one 44.1k sample
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for (int x = spacing; x > 0; x--) intermediateL[x-1] = intermediateL[x];
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lastSampleL = intermediateL[0]; //run a little buffer to handle this
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if (inputSampleR > 4.0) inputSampleR = 4.0; if (inputSampleR < -4.0) inputSampleR = -4.0;
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if (inputSampleR - lastSampleR > 0.618033988749894) inputSampleR = lastSampleR + 0.618033988749894;
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if (inputSampleR - lastSampleR < -0.618033988749894) inputSampleR = lastSampleR - 0.618033988749894;
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//same as slew clippage
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if (wasPosClipR == true) { //current will be over
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if (inputSampleR<lastSampleR) lastSampleR=1.0+(inputSampleR*0.381966011250105);
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else lastSampleR = 0.618033988749894+(lastSampleR*0.618033988749894);
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} wasPosClipR = false;
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if (inputSampleR>1.618033988749894) {wasPosClipR=true;inputSampleR=1.0+(lastSampleR*0.381966011250105);}
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if (wasNegClipR == true) { //current will be -over
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if (inputSampleR > lastSampleR) lastSampleR=-1.0+(inputSampleR*0.381966011250105);
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else lastSampleR=-0.618033988749894+(lastSampleR*0.618033988749894);
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} wasNegClipR = false;
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if (inputSampleR<-1.618033988749894) {wasNegClipR=true;inputSampleR=-1.0+(lastSampleR*0.381966011250105);}
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intermediateR[spacing] = inputSampleR;
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inputSampleR = lastSampleR; //Latency is however many samples equals one 44.1k sample
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for (int x = spacing; x > 0; x--) intermediateR[x-1] = intermediateR[x];
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lastSampleR = intermediateR[0]; //run a little buffer to handle this
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//end ClipOnly2 stereo as a little, compressed chunk that can be dropped into code
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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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//do NOT use on ClipOnly, it is almost always a pure bypass
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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 FinalClip::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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int spacing = floor(overallscale); //should give us working basic scaling, usually 2 or 4
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if (spacing < 1) spacing = 1; if (spacing > 16) spacing = 16;
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//double hardness = 0.7390851332151606; // x == cos(x)
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//double softness = 0.260914866784839; // 1.0 - hardness
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//double refclip = 0.9549925859; // -0.2dB we're making all this pure raw code
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//refclip*hardness = 0.705820822569392 to use ClipOnly as a prefab code-chunk.
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//refclip*softness = 0.249171763330607 Seven decimal places is plenty as it's
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//not related to the original sound much: it's an arbitrary position in softening.
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//This is where the numbers come from, referencing the code of the original ClipOnly
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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-43) inputSampleL = fpdL * 1.18e-43;
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// if (fabs(inputSampleR)<1.18e-43) inputSampleR = fpdR * 1.18e-43;
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//do NOT use on ClipOnly, it is almost always a pure bypass
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if (inputSampleL > 4.0) inputSampleL = 4.0; if (inputSampleL < -4.0) inputSampleL = -4.0;
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if (inputSampleL - lastSampleL > 0.618033988749894) inputSampleL = lastSampleL + 0.618033988749894;
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if (inputSampleL - lastSampleL < -0.618033988749894) inputSampleL = lastSampleL - 0.618033988749894;
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//same as slew clippage
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//begin ClipOnly2 stereo as a little, compressed chunk that can be dropped into code
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if (wasPosClipL == true) { //current will be over
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if (inputSampleL<lastSampleL) lastSampleL=1.0+(inputSampleL*0.381966011250105);
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else lastSampleL = 0.618033988749894+(lastSampleL*0.618033988749894);
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} wasPosClipL = false;
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if (inputSampleL>1.618033988749894) {wasPosClipL=true;inputSampleL=1.0+(lastSampleL*0.381966011250105);}
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if (wasNegClipL == true) { //current will be -over
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if (inputSampleL > lastSampleL) lastSampleL=-1.0+(inputSampleL*0.381966011250105);
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else lastSampleL=-0.618033988749894+(lastSampleL*0.618033988749894);
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} wasNegClipL = false;
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if (inputSampleL<-1.618033988749894) {wasNegClipL=true;inputSampleL=-1.0+(lastSampleL*0.381966011250105);}
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intermediateL[spacing] = inputSampleL;
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inputSampleL = lastSampleL; //Latency is however many samples equals one 44.1k sample
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for (int x = spacing; x > 0; x--) intermediateL[x-1] = intermediateL[x];
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lastSampleL = intermediateL[0]; //run a little buffer to handle this
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if (inputSampleR > 4.0) inputSampleR = 4.0; if (inputSampleR < -4.0) inputSampleR = -4.0;
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if (inputSampleR - lastSampleR > 0.618033988749894) inputSampleR = lastSampleR + 0.618033988749894;
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if (inputSampleR - lastSampleR < -0.618033988749894) inputSampleR = lastSampleR - 0.618033988749894;
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//same as slew clippage
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if (wasPosClipR == true) { //current will be over
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if (inputSampleR<lastSampleR) lastSampleR=1.0+(inputSampleR*0.381966011250105);
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else lastSampleR = 0.618033988749894+(lastSampleR*0.618033988749894);
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} wasPosClipR = false;
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if (inputSampleR>1.618033988749894) {wasPosClipR=true;inputSampleR=1.0+(lastSampleR*0.381966011250105);}
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if (wasNegClipR == true) { //current will be -over
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if (inputSampleR > lastSampleR) lastSampleR=-1.0+(inputSampleR*0.381966011250105);
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else lastSampleR=-0.618033988749894+(lastSampleR*0.618033988749894);
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} wasNegClipR = false;
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if (inputSampleR<-1.618033988749894) {wasNegClipR=true;inputSampleR=-1.0+(lastSampleR*0.381966011250105);}
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intermediateR[spacing] = inputSampleR;
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inputSampleR = lastSampleR; //Latency is however many samples equals one 44.1k sample
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for (int x = spacing; x > 0; x--) intermediateR[x-1] = intermediateR[x];
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lastSampleR = intermediateR[0]; //run a little buffer to handle this
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//end ClipOnly2 stereo as a little, compressed chunk that can be dropped into code
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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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//do NOT use on ClipOnly, it is almost always a pure bypass
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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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