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author | Chris Johnson <jinx6568@sover.net> | 2018-10-22 18:04:06 -0400 |
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committer | Chris Johnson <jinx6568@sover.net> | 2018-10-22 18:04:06 -0400 |
commit | 633be2e22c6648c901f08f3b4cd4e8e14ea86443 (patch) | |
tree | 1e272c3d2b5bd29636b9f9f521af62734e4df012 /plugins/MacVST/IronOxideClassic/source | |
parent | 057757aa8eb0a463caf0cdfdb5894ac5f723ff3f (diff) | |
download | airwindows-lv2-port-633be2e22c6648c901f08f3b4cd4e8e14ea86443.tar.gz airwindows-lv2-port-633be2e22c6648c901f08f3b4cd4e8e14ea86443.tar.bz2 airwindows-lv2-port-633be2e22c6648c901f08f3b4cd4e8e14ea86443.zip |
Updates (in case my plane crashes)
Diffstat (limited to 'plugins/MacVST/IronOxideClassic/source')
3 files changed, 975 insertions, 0 deletions
diff --git a/plugins/MacVST/IronOxideClassic/source/IronOxideClassic.cpp b/plugins/MacVST/IronOxideClassic/source/IronOxideClassic.cpp new file mode 100755 index 0000000..012d8a3 --- /dev/null +++ b/plugins/MacVST/IronOxideClassic/source/IronOxideClassic.cpp @@ -0,0 +1,146 @@ +/* ======================================== + * IronOxideClassic - IronOxideClassic.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __IronOxideClassic_H +#include "IronOxideClassic.h" +#endif + +AudioEffect* createEffectInstance(audioMasterCallback audioMaster) {return new IronOxideClassic(audioMaster);} + +IronOxideClassic::IronOxideClassic(audioMasterCallback audioMaster) : + AudioEffectX(audioMaster, kNumPrograms, kNumParameters) +{ + A = 0.5; + B = 0.562341325190349; + C = 0.5; + + for (int temp = 0; temp < 263; temp++) {dL[temp] = 0.0;dR[temp] = 0.0;} + gcount = 0; + fastIIRAL = fastIIRBL = slowIIRAL = slowIIRBL = 0.0; + iirSampleAL = iirSampleBL = 0.0; + fastIIRAR = fastIIRBR = slowIIRAR = slowIIRBR = 0.0; + iirSampleAR = iirSampleBR = 0.0; + + fpNShapeLA = 0.0; + fpNShapeLB = 0.0; + fpNShapeRA = 0.0; + fpNShapeRB = 0.0; + fpFlip = true; + //this is reset: values being initialized only once. Startup values, whatever they are. + + _canDo.insert("plugAsChannelInsert"); // plug-in can be used as a channel insert effect. + _canDo.insert("plugAsSend"); // plug-in can be used as a send effect. + _canDo.insert("x2in2out"); + setNumInputs(kNumInputs); + setNumOutputs(kNumOutputs); + setUniqueID(kUniqueId); + canProcessReplacing(); // supports output replacing + canDoubleReplacing(); // supports double precision processing + programsAreChunks(true); + vst_strncpy (_programName, "Default", kVstMaxProgNameLen); // default program name +} + +IronOxideClassic::~IronOxideClassic() {} +VstInt32 IronOxideClassic::getVendorVersion () {return 1000;} +void IronOxideClassic::setProgramName(char *name) {vst_strncpy (_programName, name, kVstMaxProgNameLen);} +void IronOxideClassic::getProgramName(char *name) {vst_strncpy (name, _programName, kVstMaxProgNameLen);} +//airwindows likes to ignore this stuff. Make your own programs, and make a different plugin rather than +//trying to do versioning and preventing people from using older versions. Maybe they like the old one! + +static float pinParameter(float data) +{ + if (data < 0.0f) return 0.0f; + if (data > 1.0f) return 1.0f; + return data; +} + +VstInt32 IronOxideClassic::getChunk (void** data, bool isPreset) +{ + float *chunkData = (float *)calloc(kNumParameters, sizeof(float)); + chunkData[0] = A; + chunkData[1] = B; + chunkData[2] = C; + /* Note: The way this is set up, it will break if you manage to save settings on an Intel + machine and load them on a PPC Mac. However, it's fine if you stick to the machine you + started with. */ + + *data = chunkData; + return kNumParameters * sizeof(float); +} + +VstInt32 IronOxideClassic::setChunk (void* data, VstInt32 byteSize, bool isPreset) +{ + float *chunkData = (float *)data; + A = pinParameter(chunkData[0]); + B = pinParameter(chunkData[1]); + C = pinParameter(chunkData[2]); + /* We're ignoring byteSize as we found it to be a filthy liar */ + + /* calculate any other fields you need here - you could copy in + code from setParameter() here. */ + return 0; +} + +void IronOxideClassic::setParameter(VstInt32 index, float value) { + switch (index) { + case kParamA: A = value; break; + case kParamB: B = value; break; + case kParamC: C = value; break; + default: throw; // unknown parameter, shouldn't happen! + } +} + +float IronOxideClassic::getParameter(VstInt32 index) { + switch (index) { + case kParamA: return A; break; + case kParamB: return B; break; + case kParamC: return C; break; + default: break; // unknown parameter, shouldn't happen! + } return 0.0; //we only need to update the relevant name, this is simple to manage +} + +void IronOxideClassic::getParameterName(VstInt32 index, char *text) { + switch (index) { + case kParamA: vst_strncpy (text, "Input Trim", kVstMaxParamStrLen); break; + case kParamB: vst_strncpy (text, "Tape Speed", kVstMaxParamStrLen); break; + case kParamC: vst_strncpy (text, "Output Trim", kVstMaxParamStrLen); break; + default: break; // unknown parameter, shouldn't happen! + } //this is our labels for displaying in the VST host +} + +void IronOxideClassic::getParameterDisplay(VstInt32 index, char *text) { + switch (index) { + case kParamA: float2string (((A*36.0)-18.0), text, kVstMaxParamStrLen); break; + case kParamB: float2string (((B*B)*(B*B)*148.5)+1.5, text, kVstMaxParamStrLen); break; + case kParamC: float2string (((C*36.0)-18.0), text, kVstMaxParamStrLen); break; + default: break; // unknown parameter, shouldn't happen! + } //this displays the values and handles 'popups' where it's discrete choices +} + +void IronOxideClassic::getParameterLabel(VstInt32 index, char *text) { + switch (index) { + case kParamA: vst_strncpy (text, "dB", kVstMaxParamStrLen); break; + case kParamB: vst_strncpy (text, "ips", kVstMaxParamStrLen); break; + case kParamC: vst_strncpy (text, "dB", kVstMaxParamStrLen); break; + default: break; // unknown parameter, shouldn't happen! + } +} + +VstInt32 IronOxideClassic::canDo(char *text) +{ return (_canDo.find(text) == _canDo.end()) ? -1: 1; } // 1 = yes, -1 = no, 0 = don't know + +bool IronOxideClassic::getEffectName(char* name) { + vst_strncpy(name, "IronOxideClassic", kVstMaxProductStrLen); return true; +} + +VstPlugCategory IronOxideClassic::getPlugCategory() {return kPlugCategEffect;} + +bool IronOxideClassic::getProductString(char* text) { + vst_strncpy (text, "airwindows IronOxideClassic", kVstMaxProductStrLen); return true; +} + +bool IronOxideClassic::getVendorString(char* text) { + vst_strncpy (text, "airwindows", kVstMaxVendorStrLen); return true; +} diff --git a/plugins/MacVST/IronOxideClassic/source/IronOxideClassic.h b/plugins/MacVST/IronOxideClassic/source/IronOxideClassic.h new file mode 100755 index 0000000..b7f8bfa --- /dev/null +++ b/plugins/MacVST/IronOxideClassic/source/IronOxideClassic.h @@ -0,0 +1,87 @@ +/* ======================================== + * IronOxideClassic - IronOxideClassic.h + * Created 8/12/11 by SPIAdmin + * Copyright (c) 2011 __MyCompanyName__, All rights reserved + * ======================================== */ + +#ifndef __IronOxideClassic_H +#define __IronOxideClassic_H + +#ifndef __audioeffect__ +#include "audioeffectx.h" +#endif + +#include <set> +#include <string> +#include <math.h> + +enum { + kParamA = 0, + kParamB = 1, + kParamC = 2, + kNumParameters = 3 +}; // + +const int kNumPrograms = 0; +const int kNumInputs = 2; +const int kNumOutputs = 2; +const unsigned long kUniqueId = 'feoc'; //Change this to what the AU identity is! + +class IronOxideClassic : + public AudioEffectX +{ +public: + IronOxideClassic(audioMasterCallback audioMaster); + ~IronOxideClassic(); + virtual bool getEffectName(char* name); // The plug-in name + virtual VstPlugCategory getPlugCategory(); // The general category for the plug-in + virtual bool getProductString(char* text); // This is a unique plug-in string provided by Steinberg + virtual bool getVendorString(char* text); // Vendor info + virtual VstInt32 getVendorVersion(); // Version number + virtual void processReplacing (float** inputs, float** outputs, VstInt32 sampleFrames); + virtual void processDoubleReplacing (double** inputs, double** outputs, VstInt32 sampleFrames); + virtual void getProgramName(char *name); // read the name from the host + virtual void setProgramName(char *name); // changes the name of the preset displayed in the host + virtual VstInt32 getChunk (void** data, bool isPreset); + virtual VstInt32 setChunk (void* data, VstInt32 byteSize, bool isPreset); + virtual float getParameter(VstInt32 index); // get the parameter value at the specified index + virtual void setParameter(VstInt32 index, float value); // set the parameter at index to value + virtual void getParameterLabel(VstInt32 index, char *text); // label for the parameter (eg dB) + virtual void getParameterName(VstInt32 index, char *text); // name of the parameter + virtual void getParameterDisplay(VstInt32 index, char *text); // text description of the current value + virtual VstInt32 canDo(char *text); +private: + char _programName[kVstMaxProgNameLen + 1]; + std::set< std::string > _canDo; + + double iirSampleAL; + double iirSampleBL; + double dL[264]; + double fastIIRAL; + double fastIIRBL; + double slowIIRAL; + double slowIIRBL; + + double iirSampleAR; + double iirSampleBR; + double dR[264]; + double fastIIRAR; + double fastIIRBR; + double slowIIRAR; + double slowIIRBR; + + int gcount; + + long double fpNShapeLA; + long double fpNShapeLB; + long double fpNShapeRA; + long double fpNShapeRB; + bool fpFlip; + //default stuff + + float A; + float B; + float C; +}; + +#endif diff --git a/plugins/MacVST/IronOxideClassic/source/IronOxideClassicProc.cpp b/plugins/MacVST/IronOxideClassic/source/IronOxideClassicProc.cpp new file mode 100755 index 0000000..c245166 --- /dev/null +++ b/plugins/MacVST/IronOxideClassic/source/IronOxideClassicProc.cpp @@ -0,0 +1,742 @@ +/* ======================================== + * IronOxideClassic - IronOxideClassic.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __IronOxideClassic_H +#include "IronOxideClassic.h" +#endif + +void IronOxideClassic::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) +{ + float* in1 = inputs[0]; + float* in2 = inputs[1]; + float* out1 = outputs[0]; + float* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + float fpTemp; + long double fpOld = 0.618033988749894848204586; //golden ratio! + long double fpNew = 1.0 - fpOld; + + double inputgain = pow(10.0,((A*36.0)-18.0)/20.0); + double outputgain = pow(10.0,((C*36.0)-18.0)/20.0); + double ips = (((B*B)*(B*B)*148.5)+1.5) * 1.1; + //slight correction to dial in convincing ips settings + if (ips < 1 || ips > 200){ips=33.0;} + //sanity checks are always key + double iirAmount = ips/430.0; //for low leaning + double bridgerectifierL; + double bridgerectifierR; + double fastTaper = ips/15.0; + double slowTaper = 2.0/(ips*ips); + double lowspeedscale = (5.0/ips); + int count; + double temp; + if (overallscale == 0) {fastTaper += 1.0; slowTaper += 1.0;} + else + { + iirAmount /= overallscale; + lowspeedscale *= overallscale; + fastTaper = 1.0 + (fastTaper / overallscale); + slowTaper = 1.0 + (slowTaper / overallscale); + } + + long double inputSampleL; + long double inputSampleR; + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + static int noisesource = 0; + //this declares a variable before anything else is compiled. It won't keep assigning + //it to 0 for every sample, it's as if the declaration doesn't exist in this context, + //but it lets me add this denormalization fix in a single place rather than updating + //it in three different locations. The variable isn't thread-safe but this is only + //a random seed and we can share it with whatever. + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL = applyresidue; + } + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + static int noisesource = 0; + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR = applyresidue; + //this denormalization routine produces a white noise at -300 dB which the noise + //shaping will interact with to produce a bipolar output, but the noise is actually + //all positive. That should stop any variables from going denormal, and the routine + //only kicks in if digital black is input. As a final touch, if you save to 24-bit + //the silence will return to being digital black again. + } + + if (fpFlip) + { + iirSampleAL = (iirSampleAL * (1 - iirAmount)) + (inputSampleL * iirAmount); + iirSampleAR = (iirSampleAR * (1 - iirAmount)) + (inputSampleR * iirAmount); + inputSampleL -= iirSampleAL; + inputSampleR -= iirSampleAR; + } + else + { + iirSampleBL = (iirSampleBL * (1 - iirAmount)) + (inputSampleL * iirAmount); + iirSampleBR = (iirSampleBR * (1 - iirAmount)) + (inputSampleR * iirAmount); + inputSampleL -= iirSampleBL; + inputSampleR -= iirSampleBR; + } + //do IIR highpass for leaning out + + if (inputgain != 1.0) { + inputSampleL *= inputgain; + inputSampleR *= inputgain; + } + + bridgerectifierL = fabs(inputSampleL); + if (bridgerectifierL > 1.57079633) bridgerectifierL = 1.57079633; + bridgerectifierL = sin(bridgerectifierL); + if (inputSampleL > 0.0) inputSampleL = bridgerectifierL; + else inputSampleL = -bridgerectifierL; + //preliminary gain stage using antialiasing + + bridgerectifierR = fabs(inputSampleR); + if (bridgerectifierR > 1.57079633) bridgerectifierR = 1.57079633; + bridgerectifierR = sin(bridgerectifierR); + if (inputSampleR > 0.0) inputSampleR = bridgerectifierR; + else inputSampleR = -bridgerectifierR; + //preliminary gain stage using antialiasing + + //over to the Iron Oxide shaping code using inputsample + if (gcount < 0 || gcount > 131) {gcount = 131;} + count = gcount; + //increment the counter + + dL[count+131] = dL[count] = inputSampleL; + dR[count+131] = dR[count] = inputSampleR; + + if (fpFlip) + { + fastIIRAL = fastIIRAL/fastTaper; + slowIIRAL = slowIIRAL/slowTaper; + fastIIRAL += dL[count]; + //scale stuff down + + fastIIRAR = fastIIRAR/fastTaper; + slowIIRAR = slowIIRAR/slowTaper; + fastIIRAR += dR[count]; + //scale stuff down + count += 3; + + temp = dL[count+127]; + temp += dL[count+113]; + temp += dL[count+109]; + temp += dL[count+107]; + temp += dL[count+103]; + temp += dL[count+101]; + temp += dL[count+97]; + temp += dL[count+89]; + temp += dL[count+83]; + temp /= 2; + temp += dL[count+79]; + temp += dL[count+73]; + temp += dL[count+71]; + temp += dL[count+67]; + temp += dL[count+61]; + temp += dL[count+59]; + temp += dL[count+53]; + temp += dL[count+47]; + temp += dL[count+43]; + temp += dL[count+41]; + temp += dL[count+37]; + temp += dL[count+31]; + temp += dL[count+29]; + temp /= 2; + temp += dL[count+23]; + temp += dL[count+19]; + temp += dL[count+17]; + temp += dL[count+13]; + temp += dL[count+11]; + temp /= 2; + temp += dL[count+7]; + temp += dL[count+5]; + temp += dL[count+3]; + temp /= 2; + temp += dL[count+2]; + temp += dL[count+1]; //end L + slowIIRAL += (temp/128); + + temp = dR[count+127]; + temp += dR[count+113]; + temp += dR[count+109]; + temp += dR[count+107]; + temp += dR[count+103]; + temp += dR[count+101]; + temp += dR[count+97]; + temp += dR[count+89]; + temp += dR[count+83]; + temp /= 2; + temp += dR[count+79]; + temp += dR[count+73]; + temp += dR[count+71]; + temp += dR[count+67]; + temp += dR[count+61]; + temp += dR[count+59]; + temp += dR[count+53]; + temp += dR[count+47]; + temp += dR[count+43]; + temp += dR[count+41]; + temp += dR[count+37]; + temp += dR[count+31]; + temp += dR[count+29]; + temp /= 2; + temp += dR[count+23]; + temp += dR[count+19]; + temp += dR[count+17]; + temp += dR[count+13]; + temp += dR[count+11]; + temp /= 2; + temp += dR[count+7]; + temp += dR[count+5]; + temp += dR[count+3]; + temp /= 2; + temp += dR[count+2]; + temp += dR[count+1]; //end R + slowIIRAR += (temp/128); + + inputSampleL = fastIIRAL - (slowIIRAL / slowTaper); + inputSampleR = fastIIRAR - (slowIIRAR / slowTaper); + } + else + { + fastIIRBL = fastIIRBL/fastTaper; + slowIIRBL = slowIIRBL/slowTaper; + fastIIRBL += dL[count]; + //scale stuff down + + fastIIRBR = fastIIRBR/fastTaper; + slowIIRBR = slowIIRBR/slowTaper; + fastIIRBR += dR[count]; + //scale stuff down + count += 3; + + temp = dL[count+127]; + temp += dL[count+113]; + temp += dL[count+109]; + temp += dL[count+107]; + temp += dL[count+103]; + temp += dL[count+101]; + temp += dL[count+97]; + temp += dL[count+89]; + temp += dL[count+83]; + temp /= 2; + temp += dL[count+79]; + temp += dL[count+73]; + temp += dL[count+71]; + temp += dL[count+67]; + temp += dL[count+61]; + temp += dL[count+59]; + temp += dL[count+53]; + temp += dL[count+47]; + temp += dL[count+43]; + temp += dL[count+41]; + temp += dL[count+37]; + temp += dL[count+31]; + temp += dL[count+29]; + temp /= 2; + temp += dL[count+23]; + temp += dL[count+19]; + temp += dL[count+17]; + temp += dL[count+13]; + temp += dL[count+11]; + temp /= 2; + temp += dL[count+7]; + temp += dL[count+5]; + temp += dL[count+3]; + temp /= 2; + temp += dL[count+2]; + temp += dL[count+1]; + slowIIRBL += (temp/128); + + temp = dR[count+127]; + temp += dR[count+113]; + temp += dR[count+109]; + temp += dR[count+107]; + temp += dR[count+103]; + temp += dR[count+101]; + temp += dR[count+97]; + temp += dR[count+89]; + temp += dR[count+83]; + temp /= 2; + temp += dR[count+79]; + temp += dR[count+73]; + temp += dR[count+71]; + temp += dR[count+67]; + temp += dR[count+61]; + temp += dR[count+59]; + temp += dR[count+53]; + temp += dR[count+47]; + temp += dR[count+43]; + temp += dR[count+41]; + temp += dR[count+37]; + temp += dR[count+31]; + temp += dR[count+29]; + temp /= 2; + temp += dR[count+23]; + temp += dR[count+19]; + temp += dR[count+17]; + temp += dR[count+13]; + temp += dR[count+11]; + temp /= 2; + temp += dR[count+7]; + temp += dR[count+5]; + temp += dR[count+3]; + temp /= 2; + temp += dR[count+2]; + temp += dR[count+1]; + slowIIRBR += (temp/128); + + inputSampleL = fastIIRBL - (slowIIRBL / slowTaper); + inputSampleR = fastIIRBR - (slowIIRBR / slowTaper); + } + + inputSampleL /= fastTaper; + inputSampleR /= fastTaper; + inputSampleL /= lowspeedscale; + inputSampleR /= lowspeedscale; + + bridgerectifierL = fabs(inputSampleL); + if (bridgerectifierL > 1.57079633) bridgerectifierL = 1.57079633; + bridgerectifierL = sin(bridgerectifierL); + //can use as an output limiter + if (inputSampleL > 0.0) inputSampleL = bridgerectifierL; + else inputSampleL = -bridgerectifierL; + //second stage of overdrive to prevent overs and allow bloody loud extremeness + + bridgerectifierR = fabs(inputSampleR); + if (bridgerectifierR > 1.57079633) bridgerectifierR = 1.57079633; + bridgerectifierR = sin(bridgerectifierR); + //can use as an output limiter + if (inputSampleR > 0.0) inputSampleR = bridgerectifierR; + else inputSampleR = -bridgerectifierR; + //second stage of overdrive to prevent overs and allow bloody loud extremeness + + if (outputgain != 1.0) { + inputSampleL *= outputgain; + inputSampleR *= outputgain; + } + + //noise shaping to 32-bit floating point + if (fpFlip) { + fpTemp = inputSampleL; + fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLA; + fpTemp = inputSampleR; + fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRA; + } + else { + fpTemp = inputSampleL; + fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLB; + fpTemp = inputSampleR; + fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRB; + } + fpFlip = !fpFlip; + //end noise shaping on 32 bit output + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +} + +void IronOxideClassic::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) +{ + double* in1 = inputs[0]; + double* in2 = inputs[1]; + double* out1 = outputs[0]; + double* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + double fpTemp; //this is different from singlereplacing + long double fpOld = 0.618033988749894848204586; //golden ratio! + long double fpNew = 1.0 - fpOld; + + double inputgain = pow(10.0,((A*36.0)-18.0)/20.0); + double outputgain = pow(10.0,((C*36.0)-18.0)/20.0); + double ips = (((B*B)*(B*B)*148.5)+1.5) * 1.1; + //slight correction to dial in convincing ips settings + if (ips < 1 || ips > 200){ips=33.0;} + //sanity checks are always key + double iirAmount = ips/430.0; //for low leaning + double bridgerectifierL; + double bridgerectifierR; + double fastTaper = ips/15.0; + double slowTaper = 2.0/(ips*ips); + double lowspeedscale = (5.0/ips); + int count; + double temp; + if (overallscale == 0) {fastTaper += 1.0; slowTaper += 1.0;} + else + { + iirAmount /= overallscale; + lowspeedscale *= overallscale; + fastTaper = 1.0 + (fastTaper / overallscale); + slowTaper = 1.0 + (slowTaper / overallscale); + } + + long double inputSampleL; + long double inputSampleR; + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + static int noisesource = 0; + //this declares a variable before anything else is compiled. It won't keep assigning + //it to 0 for every sample, it's as if the declaration doesn't exist in this context, + //but it lets me add this denormalization fix in a single place rather than updating + //it in three different locations. The variable isn't thread-safe but this is only + //a random seed and we can share it with whatever. + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL = applyresidue; + } + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + static int noisesource = 0; + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR = applyresidue; + //this denormalization routine produces a white noise at -300 dB which the noise + //shaping will interact with to produce a bipolar output, but the noise is actually + //all positive. That should stop any variables from going denormal, and the routine + //only kicks in if digital black is input. As a final touch, if you save to 24-bit + //the silence will return to being digital black again. + } + + if (fpFlip) + { + iirSampleAL = (iirSampleAL * (1 - iirAmount)) + (inputSampleL * iirAmount); + iirSampleAR = (iirSampleAR * (1 - iirAmount)) + (inputSampleR * iirAmount); + inputSampleL -= iirSampleAL; + inputSampleR -= iirSampleAR; + } + else + { + iirSampleBL = (iirSampleBL * (1 - iirAmount)) + (inputSampleL * iirAmount); + iirSampleBR = (iirSampleBR * (1 - iirAmount)) + (inputSampleR * iirAmount); + inputSampleL -= iirSampleBL; + inputSampleR -= iirSampleBR; + } + //do IIR highpass for leaning out + + if (inputgain != 1.0) { + inputSampleL *= inputgain; + inputSampleR *= inputgain; + } + + bridgerectifierL = fabs(inputSampleL); + if (bridgerectifierL > 1.57079633) bridgerectifierL = 1.57079633; + bridgerectifierL = sin(bridgerectifierL); + if (inputSampleL > 0.0) inputSampleL = bridgerectifierL; + else inputSampleL = -bridgerectifierL; + //preliminary gain stage using antialiasing + + bridgerectifierR = fabs(inputSampleR); + if (bridgerectifierR > 1.57079633) bridgerectifierR = 1.57079633; + bridgerectifierR = sin(bridgerectifierR); + if (inputSampleR > 0.0) inputSampleR = bridgerectifierR; + else inputSampleR = -bridgerectifierR; + //preliminary gain stage using antialiasing + + //over to the Iron Oxide shaping code using inputsample + if (gcount < 0 || gcount > 131) {gcount = 131;} + count = gcount; + //increment the counter + + dL[count+131] = dL[count] = inputSampleL; + dR[count+131] = dR[count] = inputSampleR; + + if (fpFlip) + { + fastIIRAL = fastIIRAL/fastTaper; + slowIIRAL = slowIIRAL/slowTaper; + fastIIRAL += dL[count]; + //scale stuff down + + fastIIRAR = fastIIRAR/fastTaper; + slowIIRAR = slowIIRAR/slowTaper; + fastIIRAR += dR[count]; + //scale stuff down + count += 3; + + temp = dL[count+127]; + temp += dL[count+113]; + temp += dL[count+109]; + temp += dL[count+107]; + temp += dL[count+103]; + temp += dL[count+101]; + temp += dL[count+97]; + temp += dL[count+89]; + temp += dL[count+83]; + temp /= 2; + temp += dL[count+79]; + temp += dL[count+73]; + temp += dL[count+71]; + temp += dL[count+67]; + temp += dL[count+61]; + temp += dL[count+59]; + temp += dL[count+53]; + temp += dL[count+47]; + temp += dL[count+43]; + temp += dL[count+41]; + temp += dL[count+37]; + temp += dL[count+31]; + temp += dL[count+29]; + temp /= 2; + temp += dL[count+23]; + temp += dL[count+19]; + temp += dL[count+17]; + temp += dL[count+13]; + temp += dL[count+11]; + temp /= 2; + temp += dL[count+7]; + temp += dL[count+5]; + temp += dL[count+3]; + temp /= 2; + temp += dL[count+2]; + temp += dL[count+1]; //end L + slowIIRAL += (temp/128); + + temp = dR[count+127]; + temp += dR[count+113]; + temp += dR[count+109]; + temp += dR[count+107]; + temp += dR[count+103]; + temp += dR[count+101]; + temp += dR[count+97]; + temp += dR[count+89]; + temp += dR[count+83]; + temp /= 2; + temp += dR[count+79]; + temp += dR[count+73]; + temp += dR[count+71]; + temp += dR[count+67]; + temp += dR[count+61]; + temp += dR[count+59]; + temp += dR[count+53]; + temp += dR[count+47]; + temp += dR[count+43]; + temp += dR[count+41]; + temp += dR[count+37]; + temp += dR[count+31]; + temp += dR[count+29]; + temp /= 2; + temp += dR[count+23]; + temp += dR[count+19]; + temp += dR[count+17]; + temp += dR[count+13]; + temp += dR[count+11]; + temp /= 2; + temp += dR[count+7]; + temp += dR[count+5]; + temp += dR[count+3]; + temp /= 2; + temp += dR[count+2]; + temp += dR[count+1]; //end R + slowIIRAR += (temp/128); + + inputSampleL = fastIIRAL - (slowIIRAL / slowTaper); + inputSampleR = fastIIRAR - (slowIIRAR / slowTaper); + } + else + { + fastIIRBL = fastIIRBL/fastTaper; + slowIIRBL = slowIIRBL/slowTaper; + fastIIRBL += dL[count]; + //scale stuff down + + fastIIRBR = fastIIRBR/fastTaper; + slowIIRBR = slowIIRBR/slowTaper; + fastIIRBR += dR[count]; + //scale stuff down + count += 3; + + temp = dL[count+127]; + temp += dL[count+113]; + temp += dL[count+109]; + temp += dL[count+107]; + temp += dL[count+103]; + temp += dL[count+101]; + temp += dL[count+97]; + temp += dL[count+89]; + temp += dL[count+83]; + temp /= 2; + temp += dL[count+79]; + temp += dL[count+73]; + temp += dL[count+71]; + temp += dL[count+67]; + temp += dL[count+61]; + temp += dL[count+59]; + temp += dL[count+53]; + temp += dL[count+47]; + temp += dL[count+43]; + temp += dL[count+41]; + temp += dL[count+37]; + temp += dL[count+31]; + temp += dL[count+29]; + temp /= 2; + temp += dL[count+23]; + temp += dL[count+19]; + temp += dL[count+17]; + temp += dL[count+13]; + temp += dL[count+11]; + temp /= 2; + temp += dL[count+7]; + temp += dL[count+5]; + temp += dL[count+3]; + temp /= 2; + temp += dL[count+2]; + temp += dL[count+1]; + slowIIRBL += (temp/128); + + temp = dR[count+127]; + temp += dR[count+113]; + temp += dR[count+109]; + temp += dR[count+107]; + temp += dR[count+103]; + temp += dR[count+101]; + temp += dR[count+97]; + temp += dR[count+89]; + temp += dR[count+83]; + temp /= 2; + temp += dR[count+79]; + temp += dR[count+73]; + temp += dR[count+71]; + temp += dR[count+67]; + temp += dR[count+61]; + temp += dR[count+59]; + temp += dR[count+53]; + temp += dR[count+47]; + temp += dR[count+43]; + temp += dR[count+41]; + temp += dR[count+37]; + temp += dR[count+31]; + temp += dR[count+29]; + temp /= 2; + temp += dR[count+23]; + temp += dR[count+19]; + temp += dR[count+17]; + temp += dR[count+13]; + temp += dR[count+11]; + temp /= 2; + temp += dR[count+7]; + temp += dR[count+5]; + temp += dR[count+3]; + temp /= 2; + temp += dR[count+2]; + temp += dR[count+1]; + slowIIRBR += (temp/128); + + inputSampleL = fastIIRBL - (slowIIRBL / slowTaper); + inputSampleR = fastIIRBR - (slowIIRBR / slowTaper); + } + + inputSampleL /= fastTaper; + inputSampleR /= fastTaper; + inputSampleL /= lowspeedscale; + inputSampleR /= lowspeedscale; + + bridgerectifierL = fabs(inputSampleL); + if (bridgerectifierL > 1.57079633) bridgerectifierL = 1.57079633; + bridgerectifierL = sin(bridgerectifierL); + //can use as an output limiter + if (inputSampleL > 0.0) inputSampleL = bridgerectifierL; + else inputSampleL = -bridgerectifierL; + //second stage of overdrive to prevent overs and allow bloody loud extremeness + + bridgerectifierR = fabs(inputSampleR); + if (bridgerectifierR > 1.57079633) bridgerectifierR = 1.57079633; + bridgerectifierR = sin(bridgerectifierR); + //can use as an output limiter + if (inputSampleR > 0.0) inputSampleR = bridgerectifierR; + else inputSampleR = -bridgerectifierR; + //second stage of overdrive to prevent overs and allow bloody loud extremeness + + if (outputgain != 1.0) { + inputSampleL *= outputgain; + inputSampleR *= outputgain; + } + + //noise shaping to 64-bit floating point + if (fpFlip) { + fpTemp = inputSampleL; + fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLA; + fpTemp = inputSampleR; + fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRA; + } + else { + fpTemp = inputSampleL; + fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLB; + fpTemp = inputSampleR; + fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRB; + } + fpFlip = !fpFlip; + //end noise shaping on 64 bit output + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +}
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