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182 lines
8.6 KiB
C++
Executable file
182 lines
8.6 KiB
C++
Executable file
/* ========================================
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* ClipOnly3 - ClipOnly3.h
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* Copyright (c) airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __ClipOnly3_H
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#include "ClipOnly3.h"
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#endif
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void ClipOnly3::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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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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//begin ClipOnly3 as a little, compressed chunk that can be dropped into code
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double noise = 1.0-((double(fpdL)/UINT32_MAX)*0.076);
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if (wasPosClipL == true) { //current will be over
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if (inputSampleL<lastSampleL) lastSampleL=(0.9085097*noise)+(inputSampleL*(1.0-noise));
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else lastSampleL = 0.94; //~-0.2dB to nearly match ClipOnly and ClipOnly2
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} wasPosClipL = false;
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if (inputSampleL>0.9085097) {wasPosClipL=true;inputSampleL=(0.9085097*noise)+(lastSampleL*(1.0-noise));}
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if (wasNegClipL == true) { //current will be -over
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if (inputSampleL > lastSampleL) lastSampleL=(-0.9085097*noise)+(inputSampleL*(1.0-noise));
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else lastSampleL = -0.94;
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} wasNegClipL = false;
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if (inputSampleL<-0.9085097) {wasNegClipL=true;inputSampleL=(-0.9085097*noise)+(lastSampleL*(1.0-noise));}
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slewL[spacing*2] = fabs(lastSampleL-inputSampleL);
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for (int x = spacing*2; x > 0; x--) slewL[x-1] = slewL[x];
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intermediateL[spacing] = inputSampleL; inputSampleL = lastSampleL;
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//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];} lastSampleL = intermediateL[0];
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if (wasPosClipL || wasNegClipL) {
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for (int x = spacing; x > 0; x--) lastSampleL += intermediateL[x];
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lastSampleL /= spacing;
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} double finalSlew = 0.0;
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for (int x = spacing*2; x >= 0; x--) if (finalSlew < slewL[x]) finalSlew = slewL[x];
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double postclip = 0.94 / (1.0+(finalSlew*1.3986013));
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if (inputSampleL > postclip) inputSampleL = postclip; if (inputSampleL < -postclip) inputSampleL = -postclip;
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noise = 1.0-((double(fpdR)/UINT32_MAX)*0.076);
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if (wasPosClipR == true) { //current will be over
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if (inputSampleR<lastSampleR) lastSampleR=(0.9085097*noise)+(inputSampleR*(1.0-noise));
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else lastSampleR = 0.94; //~-0.2dB to nearly match ClipOnly and ClipOnly2
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} wasPosClipR = false;
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if (inputSampleR>0.9085097) {wasPosClipR=true;inputSampleR=(0.9085097*noise)+(lastSampleR*(1.0-noise));}
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if (wasNegClipR == true) { //current will be -over
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if (inputSampleR > lastSampleR) lastSampleR=(-0.9085097*noise)+(inputSampleR*(1.0-noise));
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else lastSampleR = -0.94;
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} wasNegClipR = false;
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if (inputSampleR<-0.9085097) {wasNegClipR=true;inputSampleR=(-0.9085097*noise)+(lastSampleR*(1.0-noise));}
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slewR[spacing*2] = fabs(lastSampleR-inputSampleR);
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for (int x = spacing*2; x > 0; x--) slewR[x-1] = slewR[x];
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intermediateR[spacing] = inputSampleR; inputSampleR = lastSampleR;
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//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];} lastSampleR = intermediateR[0];
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if (wasPosClipR || wasNegClipR) {
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for (int x = spacing; x > 0; x--) lastSampleR += intermediateR[x];
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lastSampleR /= spacing;
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} finalSlew = 0.0;
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for (int x = spacing*2; x >= 0; x--) if (finalSlew < slewR[x]) finalSlew = slewR[x];
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postclip = 0.94 / (1.0+(finalSlew*1.3986013));
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if (inputSampleR > postclip) inputSampleR = postclip; if (inputSampleR < -postclip) inputSampleR = -postclip;
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//end ClipOnly3 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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*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 ClipOnly3::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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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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//begin ClipOnly3 as a little, compressed chunk that can be dropped into code
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double noise = 1.0-((double(fpdL)/UINT32_MAX)*0.076);
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if (wasPosClipL == true) { //current will be over
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if (inputSampleL<lastSampleL) lastSampleL=(0.9085097*noise)+(inputSampleL*(1.0-noise));
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else lastSampleL = 0.94; //~-0.2dB to nearly match ClipOnly and ClipOnly2
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} wasPosClipL = false;
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if (inputSampleL>0.9085097) {wasPosClipL=true;inputSampleL=(0.9085097*noise)+(lastSampleL*(1.0-noise));}
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if (wasNegClipL == true) { //current will be -over
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if (inputSampleL > lastSampleL) lastSampleL=(-0.9085097*noise)+(inputSampleL*(1.0-noise));
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else lastSampleL = -0.94;
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} wasNegClipL = false;
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if (inputSampleL<-0.9085097) {wasNegClipL=true;inputSampleL=(-0.9085097*noise)+(lastSampleL*(1.0-noise));}
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slewL[spacing*2] = fabs(lastSampleL-inputSampleL);
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for (int x = spacing*2; x > 0; x--) slewL[x-1] = slewL[x];
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intermediateL[spacing] = inputSampleL; inputSampleL = lastSampleL;
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//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];} lastSampleL = intermediateL[0];
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if (wasPosClipL || wasNegClipL) {
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for (int x = spacing; x > 0; x--) lastSampleL += intermediateL[x];
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lastSampleL /= spacing;
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} double finalSlew = 0.0;
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for (int x = spacing*2; x >= 0; x--) if (finalSlew < slewL[x]) finalSlew = slewL[x];
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double postclip = 0.94 / (1.0+(finalSlew*1.3986013));
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if (inputSampleL > postclip) inputSampleL = postclip; if (inputSampleL < -postclip) inputSampleL = -postclip;
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noise = 1.0-((double(fpdR)/UINT32_MAX)*0.076);
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if (wasPosClipR == true) { //current will be over
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if (inputSampleR<lastSampleR) lastSampleR=(0.9085097*noise)+(inputSampleR*(1.0-noise));
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else lastSampleR = 0.94; //~-0.2dB to nearly match ClipOnly and ClipOnly2
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} wasPosClipR = false;
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if (inputSampleR>0.9085097) {wasPosClipR=true;inputSampleR=(0.9085097*noise)+(lastSampleR*(1.0-noise));}
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if (wasNegClipR == true) { //current will be -over
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if (inputSampleR > lastSampleR) lastSampleR=(-0.9085097*noise)+(inputSampleR*(1.0-noise));
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else lastSampleR = -0.94;
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} wasNegClipR = false;
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if (inputSampleR<-0.9085097) {wasNegClipR=true;inputSampleR=(-0.9085097*noise)+(lastSampleR*(1.0-noise));}
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slewR[spacing*2] = fabs(lastSampleR-inputSampleR);
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for (int x = spacing*2; x > 0; x--) slewR[x-1] = slewR[x];
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intermediateR[spacing] = inputSampleR; inputSampleR = lastSampleR;
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//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];} lastSampleR = intermediateR[0];
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if (wasPosClipR || wasNegClipR) {
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for (int x = spacing; x > 0; x--) lastSampleR += intermediateR[x];
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lastSampleR /= spacing;
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} finalSlew = 0.0;
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for (int x = spacing*2; x >= 0; x--) if (finalSlew < slewR[x]) finalSlew = slewR[x];
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postclip = 0.94 / (1.0+(finalSlew*1.3986013));
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if (inputSampleR > postclip) inputSampleR = postclip; if (inputSampleR < -postclip) inputSampleR = -postclip;
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//end ClipOnly3 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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*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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