This commit is contained in:
airwindows 2021-05-23 16:39:11 -04:00
parent 12785bb45d
commit 1a6634c307
52 changed files with 11894 additions and 135 deletions

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@ -250,3 +250,4 @@ add_airwindows_plugin(VinylDither)
add_airwindows_plugin(VoiceOfTheStarship)
add_airwindows_plugin(VoiceTrick)
add_airwindows_plugin(Wider)
add_airwindows_plugin(XLowpass)

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/* ========================================
* XLowpass - XLowpass.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __XLowpass_H
#include "XLowpass.h"
#endif
AudioEffect* createEffectInstance(audioMasterCallback audioMaster) {return new XLowpass(audioMaster);}
XLowpass::XLowpass(audioMasterCallback audioMaster) :
AudioEffectX(audioMaster, kNumPrograms, kNumParameters)
{
A = 0.5;
B = 1.0;
C = 0.0;
D = 1.0;
for (int x = 0; x < 15; x++) {biquad[x] = 0.0; biquadA[x] = 0.0; biquadB[x] = 0.0; biquadC[x] = 0.0; biquadD[x] = 0.0;}
fpdL = 1.0; while (fpdL < 16386) fpdL = rand()*UINT32_MAX;
fpdR = 1.0; while (fpdR < 16386) fpdR = rand()*UINT32_MAX;
//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
}
XLowpass::~XLowpass() {}
VstInt32 XLowpass::getVendorVersion () {return 1000;}
void XLowpass::setProgramName(char *name) {vst_strncpy (_programName, name, kVstMaxProgNameLen);}
void XLowpass::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 XLowpass::getChunk (void** data, bool isPreset)
{
float *chunkData = (float *)calloc(kNumParameters, sizeof(float));
chunkData[0] = A;
chunkData[1] = B;
chunkData[2] = C;
chunkData[3] = D;
/* 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 XLowpass::setChunk (void* data, VstInt32 byteSize, bool isPreset)
{
float *chunkData = (float *)data;
A = pinParameter(chunkData[0]);
B = pinParameter(chunkData[1]);
C = pinParameter(chunkData[2]);
D = pinParameter(chunkData[3]);
/* 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 XLowpass::setParameter(VstInt32 index, float value) {
switch (index) {
case kParamA: A = value; break;
case kParamB: B = value; break;
case kParamC: C = value; break;
case kParamD: D = value; break;
default: throw; // unknown parameter, shouldn't happen!
}
}
float XLowpass::getParameter(VstInt32 index) {
switch (index) {
case kParamA: return A; break;
case kParamB: return B; break;
case kParamC: return C; break;
case kParamD: return D; 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 XLowpass::getParameterName(VstInt32 index, char *text) {
switch (index) {
case kParamA: vst_strncpy (text, "Gain", kVstMaxParamStrLen); break;
case kParamB: vst_strncpy (text, "Freq", kVstMaxParamStrLen); break;
case kParamC: vst_strncpy (text, "Nuke", kVstMaxParamStrLen); break;
case kParamD: vst_strncpy (text, "Dry/Wet", kVstMaxParamStrLen); break;
default: break; // unknown parameter, shouldn't happen!
} //this is our labels for displaying in the VST host
}
void XLowpass::getParameterDisplay(VstInt32 index, char *text) {
switch (index) {
case kParamA: float2string (A, text, kVstMaxParamStrLen); break;
case kParamB: float2string (B, text, kVstMaxParamStrLen); break;
case kParamC: float2string (C, text, kVstMaxParamStrLen); break;
case kParamD: float2string (D, text, kVstMaxParamStrLen); break;
default: break; // unknown parameter, shouldn't happen!
} //this displays the values and handles 'popups' where it's discrete choices
}
void XLowpass::getParameterLabel(VstInt32 index, char *text) {
switch (index) {
case kParamA: vst_strncpy (text, "", kVstMaxParamStrLen); break;
case kParamB: vst_strncpy (text, "", kVstMaxParamStrLen); break;
case kParamC: vst_strncpy (text, "", kVstMaxParamStrLen); break;
case kParamD: vst_strncpy (text, "", kVstMaxParamStrLen); break;
default: break; // unknown parameter, shouldn't happen!
}
}
VstInt32 XLowpass::canDo(char *text)
{ return (_canDo.find(text) == _canDo.end()) ? -1: 1; } // 1 = yes, -1 = no, 0 = don't know
bool XLowpass::getEffectName(char* name) {
vst_strncpy(name, "XLowpass", kVstMaxProductStrLen); return true;
}
VstPlugCategory XLowpass::getPlugCategory() {return kPlugCategEffect;}
bool XLowpass::getProductString(char* text) {
vst_strncpy (text, "airwindows XLowpass", kVstMaxProductStrLen); return true;
}
bool XLowpass::getVendorString(char* text) {
vst_strncpy (text, "airwindows", kVstMaxVendorStrLen); return true;
}

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@ -0,0 +1,73 @@
/* ========================================
* XLowpass - XLowpass.h
* Created 8/12/11 by SPIAdmin
* Copyright (c) 2011 __MyCompanyName__, All rights reserved
* ======================================== */
#ifndef __XLowpass_H
#define __XLowpass_H
#ifndef __audioeffect__
#include "audioeffectx.h"
#endif
#include <set>
#include <string>
#include <math.h>
enum {
kParamA = 0,
kParamB = 1,
kParamC = 2,
kParamD = 3,
kNumParameters = 4
}; //
const int kNumPrograms = 0;
const int kNumInputs = 2;
const int kNumOutputs = 2;
const unsigned long kUniqueId = 'xlop'; //Change this to what the AU identity is!
class XLowpass :
public AudioEffectX
{
public:
XLowpass(audioMasterCallback audioMaster);
~XLowpass();
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;
long double biquad[15];
long double biquadA[15];
long double biquadB[15];
long double biquadC[15];
long double biquadD[15];
uint32_t fpdL;
uint32_t fpdR;
//default stuff
float A;
float B;
float C;
float D;
};
#endif

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/* ========================================
* XLowpass - XLowpass.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __XLowpass_H
#include "XLowpass.h"
#endif
void XLowpass::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
double gain = pow(A+0.5,4);
biquadA[0] = (pow(B,2)*20000.0)/getSampleRate();
if (biquadA[0] < 0.001) biquadA[0] = 0.001;
double compensation = sqrt(biquadA[0])*6.4;
double clipFactor = 1.0+(biquadA[0]*biquadA[0]*C*32.0);
double K = tan(M_PI * biquadA[0]);
double norm = 1.0 / (1.0 + K / 0.7071 + K * K);
biquadA[2] = K * K * norm;
biquadA[3] = 2.0 * biquadA[2];
biquadA[4] = biquadA[2];
biquadA[5] = 2.0 * (K * K - 1.0) * norm;
biquadA[6] = (1.0 - K / 0.7071 + K * K) * norm;
for (int x = 0; x < 7; x++) {biquad[x] = biquadD[x] = biquadC[x] = biquadB[x] = biquadA[x];}
double aWet = 1.0;
double bWet = 1.0;
double cWet = 1.0;
double dWet = C*4.0;
double wet = D;
//four-stage wet/dry control using progressive stages that bypass when not engaged
if (dWet < 1.0) {aWet = dWet; bWet = 0.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 2.0) {bWet = dWet - 1.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 3.0) {cWet = dWet - 2.0; dWet = 0.0;}
else {dWet -= 3.0;}
//this is one way to make a little set of dry/wet stages that are successively added to the
//output as the control is turned up. Each one independently goes from 0-1 and stays at 1
//beyond that point: this is a way to progressively add a 'black box' sound processing
//which lets you fall through to simpler processing at lower settings.
long double outSample = 0.0;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double inputSampleR = *in2;
if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpdL * 1.18e-37;
if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpdR * 1.18e-37;
long double drySampleL = inputSampleL;
long double drySampleR = inputSampleR;
if (gain != 1.0) {
inputSampleL *= gain;
inputSampleR *= gain;
}
long double nukeLevelL = inputSampleL;
long double nukeLevelR = inputSampleR;
outSample = biquad[2]*inputSampleL+biquad[3]*biquad[7]+biquad[4]*biquad[8]-biquad[5]*biquad[9]-biquad[6]*biquad[10];
biquad[8] = biquad[7]; biquad[7] = inputSampleL; biquad[10] = biquad[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; nukeLevelL = inputSampleL;
outSample = biquad[2]*inputSampleR+biquad[3]*biquad[11]+biquad[4]*biquad[12]-biquad[5]*biquad[13]-biquad[6]*biquad[14];
biquad[12] = biquad[11]; biquad[11] = inputSampleR; biquad[14] = biquad[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; nukeLevelR = inputSampleR;
if (aWet > 0.0) {
outSample = biquadA[2]*inputSampleL+biquadA[3]*biquadA[7]+biquadA[4]*biquadA[8]-biquadA[5]*biquadA[9]-biquadA[6]*biquadA[10];
biquadA[8] = biquadA[7]; biquadA[7] = inputSampleL; biquadA[10] = biquadA[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * aWet) + (nukeLevelL * (1.0-aWet));
nukeLevelL = inputSampleL;
outSample = biquadA[2]*inputSampleR+biquadA[3]*biquadA[11]+biquadA[4]*biquadA[12]-biquadA[5]*biquadA[13]-biquadA[6]*biquadA[14];
biquadA[12] = biquadA[11]; biquadA[11] = inputSampleR; biquadA[14] = biquadA[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * aWet) + (nukeLevelR * (1.0-aWet));
nukeLevelR = inputSampleR;
}
if (bWet > 0.0) {
outSample = biquadB[2]*inputSampleL+biquadB[3]*biquadB[7]+biquadB[4]*biquadB[8]-biquadB[5]*biquadB[9]-biquadB[6]*biquadB[10];
biquadB[8] = biquadB[7]; biquadB[7] = inputSampleL; biquadB[10] = biquadB[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * bWet) + (nukeLevelL * (1.0-bWet));
nukeLevelL = inputSampleL;
outSample = biquadB[2]*inputSampleR+biquadB[3]*biquadB[11]+biquadB[4]*biquadB[12]-biquadB[5]*biquadB[13]-biquadB[6]*biquadB[14];
biquadB[12] = biquadB[11]; biquadB[11] = inputSampleR; biquadB[14] = biquadB[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * bWet) + (nukeLevelR * (1.0-bWet));
nukeLevelR = inputSampleR;
}
if (cWet > 0.0) {
outSample = biquadC[2]*inputSampleL+biquadC[3]*biquadC[7]+biquadC[4]*biquadC[8]-biquadC[5]*biquadC[9]-biquadC[6]*biquadC[10];
biquadC[8] = biquadC[7]; biquadC[7] = inputSampleL; biquadC[10] = biquadC[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * cWet) + (nukeLevelL * (1.0-cWet));
nukeLevelL = inputSampleL;
outSample = biquadC[2]*inputSampleR+biquadC[3]*biquadC[11]+biquadC[4]*biquadC[12]-biquadC[5]*biquadC[13]-biquadC[6]*biquadC[14];
biquadC[12] = biquadC[11]; biquadC[11] = inputSampleR; biquadC[14] = biquadC[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * cWet) + (nukeLevelR * (1.0-cWet));
nukeLevelR = inputSampleR;
}
if (dWet > 0.0) {
outSample = biquadD[2]*inputSampleL+biquadD[3]*biquadD[7]+biquadD[4]*biquadD[8]-biquadD[5]*biquadD[9]-biquadD[6]*biquadD[10];
biquadD[8] = biquadD[7]; biquadD[7] = inputSampleL; biquadD[10] = biquadD[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * dWet) + (nukeLevelL * (1.0-dWet));
nukeLevelL = inputSampleL;
outSample = biquadD[2]*inputSampleR+biquadD[3]*biquadD[11]+biquadD[4]*biquadD[12]-biquadD[5]*biquadD[13]-biquadD[6]*biquadD[14];
biquadD[12] = biquadD[11]; biquadD[11] = inputSampleR; biquadD[14] = biquadD[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * dWet) + (nukeLevelR * (1.0-dWet));
nukeLevelR = inputSampleR;
}
if (wet < 1.0) {
inputSampleL = (drySampleL * (1.0-wet))+(inputSampleL * wet);
inputSampleR = (drySampleR * (1.0-wet))+(inputSampleR * wet);
}
//begin 32 bit stereo floating point dither
int expon; frexpf((float)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
frexpf((float)inputSampleR, &expon);
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
//end 32 bit stereo floating point dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
void XLowpass::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
double gain = pow(A+0.5,4);
biquadA[0] = (pow(B,2)*20000.0)/getSampleRate();
if (biquadA[0] < 0.001) biquadA[0] = 0.001;
double compensation = sqrt(biquadA[0])*6.4;
double clipFactor = 1.0+(biquadA[0]*biquadA[0]*C*32.0);
double K = tan(M_PI * biquadA[0]);
double norm = 1.0 / (1.0 + K / 0.7071 + K * K);
biquadA[2] = K * K * norm;
biquadA[3] = 2.0 * biquadA[2];
biquadA[4] = biquadA[2];
biquadA[5] = 2.0 * (K * K - 1.0) * norm;
biquadA[6] = (1.0 - K / 0.7071 + K * K) * norm;
for (int x = 0; x < 7; x++) {biquad[x] = biquadD[x] = biquadC[x] = biquadB[x] = biquadA[x];}
double aWet = 1.0;
double bWet = 1.0;
double cWet = 1.0;
double dWet = C*4.0;
double wet = D;
//four-stage wet/dry control using progressive stages that bypass when not engaged
if (dWet < 1.0) {aWet = dWet; bWet = 0.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 2.0) {bWet = dWet - 1.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 3.0) {cWet = dWet - 2.0; dWet = 0.0;}
else {dWet -= 3.0;}
//this is one way to make a little set of dry/wet stages that are successively added to the
//output as the control is turned up. Each one independently goes from 0-1 and stays at 1
//beyond that point: this is a way to progressively add a 'black box' sound processing
//which lets you fall through to simpler processing at lower settings.
long double outSample = 0.0;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double inputSampleR = *in2;
if (fabs(inputSampleL)<1.18e-43) inputSampleL = fpdL * 1.18e-43;
if (fabs(inputSampleR)<1.18e-43) inputSampleR = fpdR * 1.18e-43;
long double drySampleL = inputSampleL;
long double drySampleR = inputSampleR;
if (gain != 1.0) {
inputSampleL *= gain;
inputSampleR *= gain;
}
long double nukeLevelL = inputSampleL;
long double nukeLevelR = inputSampleR;
outSample = biquad[2]*inputSampleL+biquad[3]*biquad[7]+biquad[4]*biquad[8]-biquad[5]*biquad[9]-biquad[6]*biquad[10];
biquad[8] = biquad[7]; biquad[7] = inputSampleL; biquad[10] = biquad[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; nukeLevelL = inputSampleL;
outSample = biquad[2]*inputSampleR+biquad[3]*biquad[11]+biquad[4]*biquad[12]-biquad[5]*biquad[13]-biquad[6]*biquad[14];
biquad[12] = biquad[11]; biquad[11] = inputSampleR; biquad[14] = biquad[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; nukeLevelR = inputSampleR;
if (aWet > 0.0) {
outSample = biquadA[2]*inputSampleL+biquadA[3]*biquadA[7]+biquadA[4]*biquadA[8]-biquadA[5]*biquadA[9]-biquadA[6]*biquadA[10];
biquadA[8] = biquadA[7]; biquadA[7] = inputSampleL; biquadA[10] = biquadA[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * aWet) + (nukeLevelL * (1.0-aWet));
nukeLevelL = inputSampleL;
outSample = biquadA[2]*inputSampleR+biquadA[3]*biquadA[11]+biquadA[4]*biquadA[12]-biquadA[5]*biquadA[13]-biquadA[6]*biquadA[14];
biquadA[12] = biquadA[11]; biquadA[11] = inputSampleR; biquadA[14] = biquadA[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * aWet) + (nukeLevelR * (1.0-aWet));
nukeLevelR = inputSampleR;
}
if (bWet > 0.0) {
outSample = biquadB[2]*inputSampleL+biquadB[3]*biquadB[7]+biquadB[4]*biquadB[8]-biquadB[5]*biquadB[9]-biquadB[6]*biquadB[10];
biquadB[8] = biquadB[7]; biquadB[7] = inputSampleL; biquadB[10] = biquadB[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * bWet) + (nukeLevelL * (1.0-bWet));
nukeLevelL = inputSampleL;
outSample = biquadB[2]*inputSampleR+biquadB[3]*biquadB[11]+biquadB[4]*biquadB[12]-biquadB[5]*biquadB[13]-biquadB[6]*biquadB[14];
biquadB[12] = biquadB[11]; biquadB[11] = inputSampleR; biquadB[14] = biquadB[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * bWet) + (nukeLevelR * (1.0-bWet));
nukeLevelR = inputSampleR;
}
if (cWet > 0.0) {
outSample = biquadC[2]*inputSampleL+biquadC[3]*biquadC[7]+biquadC[4]*biquadC[8]-biquadC[5]*biquadC[9]-biquadC[6]*biquadC[10];
biquadC[8] = biquadC[7]; biquadC[7] = inputSampleL; biquadC[10] = biquadC[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * cWet) + (nukeLevelL * (1.0-cWet));
nukeLevelL = inputSampleL;
outSample = biquadC[2]*inputSampleR+biquadC[3]*biquadC[11]+biquadC[4]*biquadC[12]-biquadC[5]*biquadC[13]-biquadC[6]*biquadC[14];
biquadC[12] = biquadC[11]; biquadC[11] = inputSampleR; biquadC[14] = biquadC[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * cWet) + (nukeLevelR * (1.0-cWet));
nukeLevelR = inputSampleR;
}
if (dWet > 0.0) {
outSample = biquadD[2]*inputSampleL+biquadD[3]*biquadD[7]+biquadD[4]*biquadD[8]-biquadD[5]*biquadD[9]-biquadD[6]*biquadD[10];
biquadD[8] = biquadD[7]; biquadD[7] = inputSampleL; biquadD[10] = biquadD[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * dWet) + (nukeLevelL * (1.0-dWet));
nukeLevelL = inputSampleL;
outSample = biquadD[2]*inputSampleR+biquadD[3]*biquadD[11]+biquadD[4]*biquadD[12]-biquadD[5]*biquadD[13]-biquadD[6]*biquadD[14];
biquadD[12] = biquadD[11]; biquadD[11] = inputSampleR; biquadD[14] = biquadD[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * dWet) + (nukeLevelR * (1.0-dWet));
nukeLevelR = inputSampleR;
}
if (wet < 1.0) {
inputSampleL = (drySampleL * (1.0-wet))+(inputSampleL * wet);
inputSampleR = (drySampleR * (1.0-wet))+(inputSampleR * wet);
}
//begin 64 bit stereo floating point dither
int expon; frexp((double)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
frexp((double)inputSampleR, &expon);
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
//end 64 bit stereo floating point dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}

View file

@ -10,7 +10,7 @@
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PBXPerProjectTemplateStateSaveDate = 626624358;
PBXWorkspaceStateSaveDate = 626624358;
PBXPerProjectTemplateStateSaveDate = 642357398;
PBXWorkspaceStateSaveDate = 642357398;
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perUserProjectItems = {
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8B6017ED26499CE3006CD098 /* PBXTextBookmark */ = 8B6017ED26499CE3006CD098 /* PBXTextBookmark */;
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8BA5409D2221C362005CB2C3 /* PBXTextBookmark */ = 8BA5409D2221C362005CB2C3 /* PBXTextBookmark */;
};
@ -62,26 +62,26 @@
userBuildSettings = {
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8B5B0180255986E30021E83B /* PBXTextBookmark */ = {
8B6017EC26499CE3006CD098 /* PBXTextBookmark */ = {
isa = PBXTextBookmark;
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8B5B01B72559877B0021E83B /* PBXTextBookmark */ = {
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name = "Loud.cpp: 249";
rLen = 0;
rLoc = 10525;
rType = 0;
vrLen = 580;
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vrLoc = 10004;
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8B6017ED26499CE3006CD098 /* PBXTextBookmark */ = {
isa = PBXTextBookmark;
fRef = 8BA05A660720730100365D66 /* Loud.cpp */;
name = "Loud.cpp: 249";
rLen = 0;
rLoc = 10525;
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vrLen = 980;
vrLoc = 9246;
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8B9F0C141EB4035300D3B900 /* PBXTextBookmark */ = {
isa = PBXTextBookmark;
fRef = 8BA05A690720730100365D66 /* LoudVersion.h */;
@ -94,10 +94,10 @@
};
8BA05A660720730100365D66 /* Loud.cpp */ = {
uiCtxt = {
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@ -307,7 +307,7 @@
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</array>
<key>PBXSmartGroupTreeModuleOutlineStateVisibleRectKey</key>
<string>{{0, 0}, {185, 428}}</string>
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</dict>
<key>PBXTopSmartGroupGIDs</key>
<array/>
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<key>GroupTreeTableConfiguration</key>
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<string>PBXSmartGroupTreeModule</string>
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<key>bookmark</key>
<string>8B5B01B72559877B0021E83B</string>
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<key>history</key>
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/*
* File: XLowpass.cpp
*
* Version: 1.0
*
* Created: 5/1/21
*
* Copyright: Copyright © 2021 Airwindows, All Rights Reserved
*
* Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
* consideration of your agreement to the following terms, and your use, installation, modification
* or redistribution of this Apple software constitutes acceptance of these terms. If you do
* not agree with these terms, please do not use, install, modify or redistribute this Apple
* software.
*
* In consideration of your agreement to abide by the following terms, and subject to these terms,
* Apple grants you a personal, non-exclusive license, under Apple's copyrights in this
* original Apple software (the "Apple Software"), to use, reproduce, modify and redistribute the
* Apple Software, with or without modifications, in source and/or binary forms; provided that if you
* redistribute the Apple Software in its entirety and without modifications, you must retain this
* notice and the following text and disclaimers in all such redistributions of the Apple Software.
* Neither the name, trademarks, service marks or logos of Apple Computer, Inc. may be used to
* endorse or promote products derived from the Apple Software without specific prior written
* permission from Apple. Except as expressly stated in this notice, no other rights or
* licenses, express or implied, are granted by Apple herein, including but not limited to any
* patent rights that may be infringed by your derivative works or by other works in which the
* Apple Software may be incorporated.
*
* The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR
* IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE
* OR IN COMBINATION WITH YOUR PRODUCTS.
*
* IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE,
* REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER
* UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN
* IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/*=============================================================================
XLowpass.cpp
=============================================================================*/
#include "XLowpass.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
COMPONENT_ENTRY(XLowpass)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// XLowpass::XLowpass
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XLowpass::XLowpass(AudioUnit component)
: AUEffectBase(component)
{
CreateElements();
Globals()->UseIndexedParameters(kNumberOfParameters);
SetParameter(kParam_One, kDefaultValue_ParamOne );
SetParameter(kParam_Two, kDefaultValue_ParamTwo );
SetParameter(kParam_Three, kDefaultValue_ParamThree );
SetParameter(kParam_Four, kDefaultValue_ParamFour );
#if AU_DEBUG_DISPATCHER
mDebugDispatcher = new AUDebugDispatcher (this);
#endif
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// XLowpass::GetParameterValueStrings
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult XLowpass::GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings)
{
return kAudioUnitErr_InvalidProperty;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// XLowpass::GetParameterInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult XLowpass::GetParameterInfo(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
AudioUnitParameterInfo &outParameterInfo )
{
ComponentResult result = noErr;
outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
| kAudioUnitParameterFlag_IsReadable;
if (inScope == kAudioUnitScope_Global) {
switch(inParameterID)
{
case kParam_One:
AUBase::FillInParameterName (outParameterInfo, kParameterOneName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamOne;
break;
case kParam_Two:
AUBase::FillInParameterName (outParameterInfo, kParameterTwoName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamTwo;
break;
case kParam_Three:
AUBase::FillInParameterName (outParameterInfo, kParameterThreeName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamThree;
break;
case kParam_Four:
AUBase::FillInParameterName (outParameterInfo, kParameterFourName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamFour;
break;
default:
result = kAudioUnitErr_InvalidParameter;
break;
}
} else {
result = kAudioUnitErr_InvalidParameter;
}
return result;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// XLowpass::GetPropertyInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult XLowpass::GetPropertyInfo (AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
UInt32 & outDataSize,
Boolean & outWritable)
{
return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// XLowpass::GetProperty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult XLowpass::GetProperty( AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData )
{
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
}
// XLowpass::Initialize
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult XLowpass::Initialize()
{
ComponentResult result = AUEffectBase::Initialize();
if (result == noErr)
Reset(kAudioUnitScope_Global, 0);
return result;
}
#pragma mark ____XLowpassEffectKernel
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// XLowpass::XLowpassKernel::Reset()
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void XLowpass::XLowpassKernel::Reset()
{
for (int x = 0; x < 11; x++) {biquad[x] = 0.0; biquadA[x] = 0.0; biquadB[x] = 0.0; biquadC[x] = 0.0; biquadD[x] = 0.0;}
fpd = 1.0; while (fpd < 16386) fpd = rand()*UINT32_MAX;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// XLowpass::XLowpassKernel::Process
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void XLowpass::XLowpassKernel::Process( const Float32 *inSourceP,
Float32 *inDestP,
UInt32 inFramesToProcess,
UInt32 inNumChannels,
bool &ioSilence )
{
UInt32 nSampleFrames = inFramesToProcess;
const Float32 *sourceP = inSourceP;
Float32 *destP = inDestP;
Float64 gain = pow(GetParameter( kParam_One )+0.5,4);
biquadA[0] = (pow(GetParameter( kParam_Two ),2)*20000.0)/GetSampleRate();
if (biquadA[0] < 0.001) biquadA[0] = 0.001;
Float64 compensation = sqrt(biquadA[0])*6.4;
Float64 clipFactor = 1.0+(biquadA[0]*biquadA[0]*GetParameter( kParam_Three )*32.0);
double K = tan(M_PI * biquadA[0]);
double norm = 1.0 / (1.0 + K / 0.7071 + K * K);
biquadA[2] = K * K * norm;
biquadA[3] = 2.0 * biquadA[2];
biquadA[4] = biquadA[2];
biquadA[5] = 2.0 * (K * K - 1.0) * norm;
biquadA[6] = (1.0 - K / 0.7071 + K * K) * norm;
for (int x = 0; x < 7; x++) {biquad[x] = biquadD[x] = biquadC[x] = biquadB[x] = biquadA[x];}
Float64 aWet = 1.0;
Float64 bWet = 1.0;
Float64 cWet = 1.0;
Float64 dWet = GetParameter( kParam_Three )*4.0;
Float64 wet = GetParameter( kParam_Four );
//four-stage wet/dry control using progressive stages that bypass when not engaged
if (dWet < 1.0) {aWet = dWet; bWet = 0.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 2.0) {bWet = dWet - 1.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 3.0) {cWet = dWet - 2.0; dWet = 0.0;}
else {dWet -= 3.0;}
//this is one way to make a little set of dry/wet stages that are successively added to the
//output as the control is turned up. Each one independently goes from 0-1 and stays at 1
//beyond that point: this is a way to progressively add a 'black box' sound processing
//which lets you fall through to simpler processing at lower settings.
long double outSample = 0.0;
while (nSampleFrames-- > 0) {
long double inputSample = *sourceP;
if (fabs(inputSample)<1.18e-37) inputSample = fpd * 1.18e-37;
long double drySample = inputSample;
if (gain != 1.0) {
inputSample *= gain;
}
long double nukeLevel = inputSample;
outSample = biquad[2]*inputSample+biquad[3]*biquad[7]+biquad[4]*biquad[8]-biquad[5]*biquad[9]-biquad[6]*biquad[10];
biquad[8] = biquad[7]; biquad[7] = inputSample; biquad[10] = biquad[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[9] = sin(outSample); //DF1
inputSample = outSample / compensation; nukeLevel = inputSample;
if (aWet > 0.0) {
outSample = biquadA[2]*inputSample+biquadA[3]*biquadA[7]+biquadA[4]*biquadA[8]-biquadA[5]*biquadA[9]-biquadA[6]*biquadA[10];
biquadA[8] = biquadA[7]; biquadA[7] = inputSample; biquadA[10] = biquadA[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[9] = sin(outSample); //DF1
inputSample = outSample / compensation; inputSample = (inputSample * aWet) + (nukeLevel * (1.0-aWet));
nukeLevel = inputSample;
}
if (bWet > 0.0) {
outSample = biquadB[2]*inputSample+biquadB[3]*biquadB[7]+biquadB[4]*biquadB[8]-biquadB[5]*biquadB[9]-biquadB[6]*biquadB[10];
biquadB[8] = biquadB[7]; biquadB[7] = inputSample; biquadB[10] = biquadB[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[9] = sin(outSample); //DF1
inputSample = outSample / compensation; inputSample = (inputSample * bWet) + (nukeLevel * (1.0-bWet));
nukeLevel = inputSample;
}
if (cWet > 0.0) {
outSample = biquadC[2]*inputSample+biquadC[3]*biquadC[7]+biquadC[4]*biquadC[8]-biquadC[5]*biquadC[9]-biquadC[6]*biquadC[10];
biquadC[8] = biquadC[7]; biquadC[7] = inputSample; biquadC[10] = biquadC[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[9] = sin(outSample); //DF1
inputSample = outSample / compensation; inputSample = (inputSample * cWet) + (nukeLevel * (1.0-cWet));
nukeLevel = inputSample;
}
if (dWet > 0.0) {
outSample = biquadD[2]*inputSample+biquadD[3]*biquadD[7]+biquadD[4]*biquadD[8]-biquadD[5]*biquadD[9]-biquadD[6]*biquadD[10];
biquadD[8] = biquadD[7]; biquadD[7] = inputSample; biquadD[10] = biquadD[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[9] = sin(outSample); //DF1
inputSample = outSample / compensation; inputSample = (inputSample * dWet) + (nukeLevel * (1.0-dWet));
nukeLevel = inputSample;
}
if (wet < 1.0) {
inputSample = (drySample * (1.0-wet))+(inputSample * wet);
}
//begin 32 bit floating point dither
int expon; frexpf((float)inputSample, &expon);
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
inputSample += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
//end 32 bit floating point dither
*destP = inputSample;
sourceP += inNumChannels; destP += inNumChannels;
}
}

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@ -0,0 +1 @@
_XLowpassEntry

View file

@ -0,0 +1,149 @@
/*
* File: XLowpass.h
*
* Version: 1.0
*
* Created: 5/1/21
*
* Copyright: Copyright © 2021 Airwindows, All Rights Reserved
*
* Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
* consideration of your agreement to the following terms, and your use, installation, modification
* or redistribution of this Apple software constitutes acceptance of these terms. If you do
* not agree with these terms, please do not use, install, modify or redistribute this Apple
* software.
*
* In consideration of your agreement to abide by the following terms, and subject to these terms,
* Apple grants you a personal, non-exclusive license, under Apple's copyrights in this
* original Apple software (the "Apple Software"), to use, reproduce, modify and redistribute the
* Apple Software, with or without modifications, in source and/or binary forms; provided that if you
* redistribute the Apple Software in its entirety and without modifications, you must retain this
* notice and the following text and disclaimers in all such redistributions of the Apple Software.
* Neither the name, trademarks, service marks or logos of Apple Computer, Inc. may be used to
* endorse or promote products derived from the Apple Software without specific prior written
* permission from Apple. Except as expressly stated in this notice, no other rights or
* licenses, express or implied, are granted by Apple herein, including but not limited to any
* patent rights that may be infringed by your derivative works or by other works in which the
* Apple Software may be incorporated.
*
* The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR
* IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE
* OR IN COMBINATION WITH YOUR PRODUCTS.
*
* IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE,
* REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER
* UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN
* IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "AUEffectBase.h"
#include "XLowpassVersion.h"
#if AU_DEBUG_DISPATCHER
#include "AUDebugDispatcher.h"
#endif
#ifndef __XLowpass_h__
#define __XLowpass_h__
#pragma mark ____XLowpass Parameters
// parameters
static const float kDefaultValue_ParamOne = 0.5;
static const float kDefaultValue_ParamTwo = 1.0;
static const float kDefaultValue_ParamThree = 0.0;
static const float kDefaultValue_ParamFour = 1.0;
static CFStringRef kParameterOneName = CFSTR("Gain");
static CFStringRef kParameterTwoName = CFSTR("Freq");
static CFStringRef kParameterThreeName = CFSTR("Nuke");
static CFStringRef kParameterFourName = CFSTR("Dry/Wet");
//Alter the name if desired, but using the plugin name is a start
enum {
kParam_One =0,
kParam_Two =1,
kParam_Three =2,
kParam_Four =3,
//Add your parameters here...
kNumberOfParameters=4
};
#pragma mark ____XLowpass
class XLowpass : public AUEffectBase
{
public:
XLowpass(AudioUnit component);
#if AU_DEBUG_DISPATCHER
virtual ~XLowpass () { delete mDebugDispatcher; }
#endif
virtual AUKernelBase * NewKernel() { return new XLowpassKernel(this); }
virtual ComponentResult GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings);
virtual ComponentResult GetParameterInfo(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
AudioUnitParameterInfo &outParameterInfo);
virtual ComponentResult GetPropertyInfo(AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
UInt32 & outDataSize,
Boolean & outWritable );
virtual ComponentResult GetProperty(AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData);
virtual ComponentResult Initialize();
virtual bool SupportsTail () { return true; }
virtual Float64 GetTailTime() {return (1.0/GetSampleRate())*0.0;} //in SECONDS! gsr * a number = in samples
virtual Float64 GetLatency() {return (1.0/GetSampleRate())*0.0;} // in SECONDS! gsr * a number = in samples
/*! @method Version */
virtual ComponentResult Version() { return kXLowpassVersion; }
protected:
class XLowpassKernel : public AUKernelBase // most of the real work happens here
{
public:
XLowpassKernel(AUEffectBase *inAudioUnit )
: AUKernelBase(inAudioUnit)
{
}
// *Required* overides for the process method for this effect
// processes one channel of interleaved samples
virtual void Process( const Float32 *inSourceP,
Float32 *inDestP,
UInt32 inFramesToProcess,
UInt32 inNumChannels,
bool &ioSilence);
virtual void Reset();
private:
long double biquad[11];
long double biquadA[11];
long double biquadB[11];
long double biquadC[11];
long double biquadD[11];
uint32_t fpd;
};
};
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#endif

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@ -0,0 +1,61 @@
/*
* File: XLowpass.r
*
* Version: 1.0
*
* Created: 5/1/21
*
* Copyright: Copyright © 2021 Airwindows, All Rights Reserved
*
* Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
* consideration of your agreement to the following terms, and your use, installation, modification
* or redistribution of this Apple software constitutes acceptance of these terms. If you do
* not agree with these terms, please do not use, install, modify or redistribute this Apple
* software.
*
* In consideration of your agreement to abide by the following terms, and subject to these terms,
* Apple grants you a personal, non-exclusive license, under Apple's copyrights in this
* original Apple software (the "Apple Software"), to use, reproduce, modify and redistribute the
* Apple Software, with or without modifications, in source and/or binary forms; provided that if you
* redistribute the Apple Software in its entirety and without modifications, you must retain this
* notice and the following text and disclaimers in all such redistributions of the Apple Software.
* Neither the name, trademarks, service marks or logos of Apple Computer, Inc. may be used to
* endorse or promote products derived from the Apple Software without specific prior written
* permission from Apple. Except as expressly stated in this notice, no other rights or
* licenses, express or implied, are granted by Apple herein, including but not limited to any
* patent rights that may be infringed by your derivative works or by other works in which the
* Apple Software may be incorporated.
*
* The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR
* IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE
* OR IN COMBINATION WITH YOUR PRODUCTS.
*
* IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE,
* REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER
* UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN
* IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <AudioUnit/AudioUnit.r>
#include "XLowpassVersion.h"
// Note that resource IDs must be spaced 2 apart for the 'STR ' name and description
#define kAudioUnitResID_XLowpass 1000
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ XLowpass~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#define RES_ID kAudioUnitResID_XLowpass
#define COMP_TYPE kAudioUnitType_Effect
#define COMP_SUBTYPE XLowpass_COMP_SUBTYPE
#define COMP_MANUF XLowpass_COMP_MANF
#define VERSION kXLowpassVersion
#define NAME "Airwindows: XLowpass"
#define DESCRIPTION "XLowpass AU"
#define ENTRY_POINT "XLowpassEntry"
#include "AUResources.r"

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@ -0,0 +1,148 @@
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/*
* File: XLowpassVersion.h
*
* Version: 1.0
*
* Created: 5/1/21
*
* Copyright: Copyright © 2021 Airwindows, All Rights Reserved
*
* Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
* consideration of your agreement to the following terms, and your use, installation, modification
* or redistribution of this Apple software constitutes acceptance of these terms. If you do
* not agree with these terms, please do not use, install, modify or redistribute this Apple
* software.
*
* In consideration of your agreement to abide by the following terms, and subject to these terms,
* Apple grants you a personal, non-exclusive license, under Apple's copyrights in this
* original Apple software (the "Apple Software"), to use, reproduce, modify and redistribute the
* Apple Software, with or without modifications, in source and/or binary forms; provided that if you
* redistribute the Apple Software in its entirety and without modifications, you must retain this
* notice and the following text and disclaimers in all such redistributions of the Apple Software.
* Neither the name, trademarks, service marks or logos of Apple Computer, Inc. may be used to
* endorse or promote products derived from the Apple Software without specific prior written
* permission from Apple. Except as expressly stated in this notice, no other rights or
* licenses, express or implied, are granted by Apple herein, including but not limited to any
* patent rights that may be infringed by your derivative works or by other works in which the
* Apple Software may be incorporated.
*
* The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR
* IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE
* OR IN COMBINATION WITH YOUR PRODUCTS.
*
* IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE,
* REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER
* UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN
* IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef __XLowpassVersion_h__
#define __XLowpassVersion_h__
#ifdef DEBUG
#define kXLowpassVersion 0xFFFFFFFF
#else
#define kXLowpassVersion 0x00010000
#endif
//~~~~~~~~~~~~~~ Change!!! ~~~~~~~~~~~~~~~~~~~~~//
#define XLowpass_COMP_MANF 'Dthr'
#define XLowpass_COMP_SUBTYPE 'xlop'
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
#endif

View file

@ -0,0 +1,16 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>BuildVersion</key>
<string>3</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleVersion</key>
<string>1.0</string>
<key>ProjectName</key>
<string>${EXECUTABLE_NAME}</string>
<key>SourceVersion</key>
<string>590000</string>
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</plist>

View file

@ -49,13 +49,14 @@
PBXFileDataSource_Warnings_ColumnID,
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PBXPerProjectTemplateStateSaveDate = 640821206;
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8BD3C110263228DC00F96FC5 /* PBXTextBookmark */ = {
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@ -323,7 +323,7 @@
<real>185</real>
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<string>PBXSmartGroupTreeModule</string>
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<key>WindowOrderList</key>
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@ -49,13 +49,13 @@
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@ -300,7 +300,7 @@
<key>PBXSmartGroupTreeModuleOutlineStateSelectionKey</key>
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<array>
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<key>PBXProjectModuleGUID</key>
<string>8B0237581D42B1C400E1E8C8</string>
<key>PBXProjectModuleLabel</key>
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<key>PBXSplitModuleInNavigatorKey</key>
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<key>Split0</key>
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<key>PBXProjectModuleGUID</key>
<string>8B0237591D42B1C400E1E8C8</string>
<key>PBXProjectModuleLabel</key>
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@ -49,12 +49,13 @@
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@ -300,7 +300,7 @@
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#define MACX 1
#define USE_NAMESPACE 0
#define TARGET_API_MAC_CARBON 1
#define USENAVSERVICES 1
#define __CF_USE_FRAMEWORK_INCLUDES__
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#define QUARTZ 1
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/* ========================================
* XLowpass - XLowpass.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __XLowpass_H
#include "XLowpass.h"
#endif
AudioEffect* createEffectInstance(audioMasterCallback audioMaster) {return new XLowpass(audioMaster);}
XLowpass::XLowpass(audioMasterCallback audioMaster) :
AudioEffectX(audioMaster, kNumPrograms, kNumParameters)
{
A = 0.5;
B = 1.0;
C = 0.0;
D = 1.0;
for (int x = 0; x < 15; x++) {biquad[x] = 0.0; biquadA[x] = 0.0; biquadB[x] = 0.0; biquadC[x] = 0.0; biquadD[x] = 0.0;}
fpdL = 1.0; while (fpdL < 16386) fpdL = rand()*UINT32_MAX;
fpdR = 1.0; while (fpdR < 16386) fpdR = rand()*UINT32_MAX;
//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
}
XLowpass::~XLowpass() {}
VstInt32 XLowpass::getVendorVersion () {return 1000;}
void XLowpass::setProgramName(char *name) {vst_strncpy (_programName, name, kVstMaxProgNameLen);}
void XLowpass::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 XLowpass::getChunk (void** data, bool isPreset)
{
float *chunkData = (float *)calloc(kNumParameters, sizeof(float));
chunkData[0] = A;
chunkData[1] = B;
chunkData[2] = C;
chunkData[3] = D;
/* 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 XLowpass::setChunk (void* data, VstInt32 byteSize, bool isPreset)
{
float *chunkData = (float *)data;
A = pinParameter(chunkData[0]);
B = pinParameter(chunkData[1]);
C = pinParameter(chunkData[2]);
D = pinParameter(chunkData[3]);
/* 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 XLowpass::setParameter(VstInt32 index, float value) {
switch (index) {
case kParamA: A = value; break;
case kParamB: B = value; break;
case kParamC: C = value; break;
case kParamD: D = value; break;
default: throw; // unknown parameter, shouldn't happen!
}
}
float XLowpass::getParameter(VstInt32 index) {
switch (index) {
case kParamA: return A; break;
case kParamB: return B; break;
case kParamC: return C; break;
case kParamD: return D; 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 XLowpass::getParameterName(VstInt32 index, char *text) {
switch (index) {
case kParamA: vst_strncpy (text, "Gain", kVstMaxParamStrLen); break;
case kParamB: vst_strncpy (text, "Freq", kVstMaxParamStrLen); break;
case kParamC: vst_strncpy (text, "Nuke", kVstMaxParamStrLen); break;
case kParamD: vst_strncpy (text, "Dry/Wet", kVstMaxParamStrLen); break;
default: break; // unknown parameter, shouldn't happen!
} //this is our labels for displaying in the VST host
}
void XLowpass::getParameterDisplay(VstInt32 index, char *text) {
switch (index) {
case kParamA: float2string (A, text, kVstMaxParamStrLen); break;
case kParamB: float2string (B, text, kVstMaxParamStrLen); break;
case kParamC: float2string (C, text, kVstMaxParamStrLen); break;
case kParamD: float2string (D, text, kVstMaxParamStrLen); break;
default: break; // unknown parameter, shouldn't happen!
} //this displays the values and handles 'popups' where it's discrete choices
}
void XLowpass::getParameterLabel(VstInt32 index, char *text) {
switch (index) {
case kParamA: vst_strncpy (text, "", kVstMaxParamStrLen); break;
case kParamB: vst_strncpy (text, "", kVstMaxParamStrLen); break;
case kParamC: vst_strncpy (text, "", kVstMaxParamStrLen); break;
case kParamD: vst_strncpy (text, "", kVstMaxParamStrLen); break;
default: break; // unknown parameter, shouldn't happen!
}
}
VstInt32 XLowpass::canDo(char *text)
{ return (_canDo.find(text) == _canDo.end()) ? -1: 1; } // 1 = yes, -1 = no, 0 = don't know
bool XLowpass::getEffectName(char* name) {
vst_strncpy(name, "XLowpass", kVstMaxProductStrLen); return true;
}
VstPlugCategory XLowpass::getPlugCategory() {return kPlugCategEffect;}
bool XLowpass::getProductString(char* text) {
vst_strncpy (text, "airwindows XLowpass", kVstMaxProductStrLen); return true;
}
bool XLowpass::getVendorString(char* text) {
vst_strncpy (text, "airwindows", kVstMaxVendorStrLen); return true;
}

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@ -0,0 +1,73 @@
/* ========================================
* XLowpass - XLowpass.h
* Created 8/12/11 by SPIAdmin
* Copyright (c) 2011 __MyCompanyName__, All rights reserved
* ======================================== */
#ifndef __XLowpass_H
#define __XLowpass_H
#ifndef __audioeffect__
#include "audioeffectx.h"
#endif
#include <set>
#include <string>
#include <math.h>
enum {
kParamA = 0,
kParamB = 1,
kParamC = 2,
kParamD = 3,
kNumParameters = 4
}; //
const int kNumPrograms = 0;
const int kNumInputs = 2;
const int kNumOutputs = 2;
const unsigned long kUniqueId = 'xlop'; //Change this to what the AU identity is!
class XLowpass :
public AudioEffectX
{
public:
XLowpass(audioMasterCallback audioMaster);
~XLowpass();
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;
long double biquad[15];
long double biquadA[15];
long double biquadB[15];
long double biquadC[15];
long double biquadD[15];
uint32_t fpdL;
uint32_t fpdR;
//default stuff
float A;
float B;
float C;
float D;
};
#endif

View file

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/* ========================================
* XLowpass - XLowpass.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __XLowpass_H
#include "XLowpass.h"
#endif
void XLowpass::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
double gain = pow(A+0.5,4);
biquadA[0] = (pow(B,2)*20000.0)/getSampleRate();
if (biquadA[0] < 0.001) biquadA[0] = 0.001;
double compensation = sqrt(biquadA[0])*6.4;
double clipFactor = 1.0+(biquadA[0]*biquadA[0]*C*32.0);
double K = tan(M_PI * biquadA[0]);
double norm = 1.0 / (1.0 + K / 0.7071 + K * K);
biquadA[2] = K * K * norm;
biquadA[3] = 2.0 * biquadA[2];
biquadA[4] = biquadA[2];
biquadA[5] = 2.0 * (K * K - 1.0) * norm;
biquadA[6] = (1.0 - K / 0.7071 + K * K) * norm;
for (int x = 0; x < 7; x++) {biquad[x] = biquadD[x] = biquadC[x] = biquadB[x] = biquadA[x];}
double aWet = 1.0;
double bWet = 1.0;
double cWet = 1.0;
double dWet = C*4.0;
double wet = D;
//four-stage wet/dry control using progressive stages that bypass when not engaged
if (dWet < 1.0) {aWet = dWet; bWet = 0.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 2.0) {bWet = dWet - 1.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 3.0) {cWet = dWet - 2.0; dWet = 0.0;}
else {dWet -= 3.0;}
//this is one way to make a little set of dry/wet stages that are successively added to the
//output as the control is turned up. Each one independently goes from 0-1 and stays at 1
//beyond that point: this is a way to progressively add a 'black box' sound processing
//which lets you fall through to simpler processing at lower settings.
long double outSample = 0.0;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double inputSampleR = *in2;
if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpdL * 1.18e-37;
if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpdR * 1.18e-37;
long double drySampleL = inputSampleL;
long double drySampleR = inputSampleR;
if (gain != 1.0) {
inputSampleL *= gain;
inputSampleR *= gain;
}
long double nukeLevelL = inputSampleL;
long double nukeLevelR = inputSampleR;
outSample = biquad[2]*inputSampleL+biquad[3]*biquad[7]+biquad[4]*biquad[8]-biquad[5]*biquad[9]-biquad[6]*biquad[10];
biquad[8] = biquad[7]; biquad[7] = inputSampleL; biquad[10] = biquad[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; nukeLevelL = inputSampleL;
outSample = biquad[2]*inputSampleR+biquad[3]*biquad[11]+biquad[4]*biquad[12]-biquad[5]*biquad[13]-biquad[6]*biquad[14];
biquad[12] = biquad[11]; biquad[11] = inputSampleR; biquad[14] = biquad[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; nukeLevelR = inputSampleR;
if (aWet > 0.0) {
outSample = biquadA[2]*inputSampleL+biquadA[3]*biquadA[7]+biquadA[4]*biquadA[8]-biquadA[5]*biquadA[9]-biquadA[6]*biquadA[10];
biquadA[8] = biquadA[7]; biquadA[7] = inputSampleL; biquadA[10] = biquadA[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * aWet) + (nukeLevelL * (1.0-aWet));
nukeLevelL = inputSampleL;
outSample = biquadA[2]*inputSampleR+biquadA[3]*biquadA[11]+biquadA[4]*biquadA[12]-biquadA[5]*biquadA[13]-biquadA[6]*biquadA[14];
biquadA[12] = biquadA[11]; biquadA[11] = inputSampleR; biquadA[14] = biquadA[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * aWet) + (nukeLevelR * (1.0-aWet));
nukeLevelR = inputSampleR;
}
if (bWet > 0.0) {
outSample = biquadB[2]*inputSampleL+biquadB[3]*biquadB[7]+biquadB[4]*biquadB[8]-biquadB[5]*biquadB[9]-biquadB[6]*biquadB[10];
biquadB[8] = biquadB[7]; biquadB[7] = inputSampleL; biquadB[10] = biquadB[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * bWet) + (nukeLevelL * (1.0-bWet));
nukeLevelL = inputSampleL;
outSample = biquadB[2]*inputSampleR+biquadB[3]*biquadB[11]+biquadB[4]*biquadB[12]-biquadB[5]*biquadB[13]-biquadB[6]*biquadB[14];
biquadB[12] = biquadB[11]; biquadB[11] = inputSampleR; biquadB[14] = biquadB[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * bWet) + (nukeLevelR * (1.0-bWet));
nukeLevelR = inputSampleR;
}
if (cWet > 0.0) {
outSample = biquadC[2]*inputSampleL+biquadC[3]*biquadC[7]+biquadC[4]*biquadC[8]-biquadC[5]*biquadC[9]-biquadC[6]*biquadC[10];
biquadC[8] = biquadC[7]; biquadC[7] = inputSampleL; biquadC[10] = biquadC[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * cWet) + (nukeLevelL * (1.0-cWet));
nukeLevelL = inputSampleL;
outSample = biquadC[2]*inputSampleR+biquadC[3]*biquadC[11]+biquadC[4]*biquadC[12]-biquadC[5]*biquadC[13]-biquadC[6]*biquadC[14];
biquadC[12] = biquadC[11]; biquadC[11] = inputSampleR; biquadC[14] = biquadC[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * cWet) + (nukeLevelR * (1.0-cWet));
nukeLevelR = inputSampleR;
}
if (dWet > 0.0) {
outSample = biquadD[2]*inputSampleL+biquadD[3]*biquadD[7]+biquadD[4]*biquadD[8]-biquadD[5]*biquadD[9]-biquadD[6]*biquadD[10];
biquadD[8] = biquadD[7]; biquadD[7] = inputSampleL; biquadD[10] = biquadD[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * dWet) + (nukeLevelL * (1.0-dWet));
nukeLevelL = inputSampleL;
outSample = biquadD[2]*inputSampleR+biquadD[3]*biquadD[11]+biquadD[4]*biquadD[12]-biquadD[5]*biquadD[13]-biquadD[6]*biquadD[14];
biquadD[12] = biquadD[11]; biquadD[11] = inputSampleR; biquadD[14] = biquadD[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * dWet) + (nukeLevelR * (1.0-dWet));
nukeLevelR = inputSampleR;
}
if (wet < 1.0) {
inputSampleL = (drySampleL * (1.0-wet))+(inputSampleL * wet);
inputSampleR = (drySampleR * (1.0-wet))+(inputSampleR * wet);
}
//begin 32 bit stereo floating point dither
int expon; frexpf((float)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
frexpf((float)inputSampleR, &expon);
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
//end 32 bit stereo floating point dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
void XLowpass::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
double gain = pow(A+0.5,4);
biquadA[0] = (pow(B,2)*20000.0)/getSampleRate();
if (biquadA[0] < 0.001) biquadA[0] = 0.001;
double compensation = sqrt(biquadA[0])*6.4;
double clipFactor = 1.0+(biquadA[0]*biquadA[0]*C*32.0);
double K = tan(M_PI * biquadA[0]);
double norm = 1.0 / (1.0 + K / 0.7071 + K * K);
biquadA[2] = K * K * norm;
biquadA[3] = 2.0 * biquadA[2];
biquadA[4] = biquadA[2];
biquadA[5] = 2.0 * (K * K - 1.0) * norm;
biquadA[6] = (1.0 - K / 0.7071 + K * K) * norm;
for (int x = 0; x < 7; x++) {biquad[x] = biquadD[x] = biquadC[x] = biquadB[x] = biquadA[x];}
double aWet = 1.0;
double bWet = 1.0;
double cWet = 1.0;
double dWet = C*4.0;
double wet = D;
//four-stage wet/dry control using progressive stages that bypass when not engaged
if (dWet < 1.0) {aWet = dWet; bWet = 0.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 2.0) {bWet = dWet - 1.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 3.0) {cWet = dWet - 2.0; dWet = 0.0;}
else {dWet -= 3.0;}
//this is one way to make a little set of dry/wet stages that are successively added to the
//output as the control is turned up. Each one independently goes from 0-1 and stays at 1
//beyond that point: this is a way to progressively add a 'black box' sound processing
//which lets you fall through to simpler processing at lower settings.
long double outSample = 0.0;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double inputSampleR = *in2;
if (fabs(inputSampleL)<1.18e-43) inputSampleL = fpdL * 1.18e-43;
if (fabs(inputSampleR)<1.18e-43) inputSampleR = fpdR * 1.18e-43;
long double drySampleL = inputSampleL;
long double drySampleR = inputSampleR;
if (gain != 1.0) {
inputSampleL *= gain;
inputSampleR *= gain;
}
long double nukeLevelL = inputSampleL;
long double nukeLevelR = inputSampleR;
outSample = biquad[2]*inputSampleL+biquad[3]*biquad[7]+biquad[4]*biquad[8]-biquad[5]*biquad[9]-biquad[6]*biquad[10];
biquad[8] = biquad[7]; biquad[7] = inputSampleL; biquad[10] = biquad[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; nukeLevelL = inputSampleL;
outSample = biquad[2]*inputSampleR+biquad[3]*biquad[11]+biquad[4]*biquad[12]-biquad[5]*biquad[13]-biquad[6]*biquad[14];
biquad[12] = biquad[11]; biquad[11] = inputSampleR; biquad[14] = biquad[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; nukeLevelR = inputSampleR;
if (aWet > 0.0) {
outSample = biquadA[2]*inputSampleL+biquadA[3]*biquadA[7]+biquadA[4]*biquadA[8]-biquadA[5]*biquadA[9]-biquadA[6]*biquadA[10];
biquadA[8] = biquadA[7]; biquadA[7] = inputSampleL; biquadA[10] = biquadA[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * aWet) + (nukeLevelL * (1.0-aWet));
nukeLevelL = inputSampleL;
outSample = biquadA[2]*inputSampleR+biquadA[3]*biquadA[11]+biquadA[4]*biquadA[12]-biquadA[5]*biquadA[13]-biquadA[6]*biquadA[14];
biquadA[12] = biquadA[11]; biquadA[11] = inputSampleR; biquadA[14] = biquadA[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * aWet) + (nukeLevelR * (1.0-aWet));
nukeLevelR = inputSampleR;
}
if (bWet > 0.0) {
outSample = biquadB[2]*inputSampleL+biquadB[3]*biquadB[7]+biquadB[4]*biquadB[8]-biquadB[5]*biquadB[9]-biquadB[6]*biquadB[10];
biquadB[8] = biquadB[7]; biquadB[7] = inputSampleL; biquadB[10] = biquadB[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * bWet) + (nukeLevelL * (1.0-bWet));
nukeLevelL = inputSampleL;
outSample = biquadB[2]*inputSampleR+biquadB[3]*biquadB[11]+biquadB[4]*biquadB[12]-biquadB[5]*biquadB[13]-biquadB[6]*biquadB[14];
biquadB[12] = biquadB[11]; biquadB[11] = inputSampleR; biquadB[14] = biquadB[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * bWet) + (nukeLevelR * (1.0-bWet));
nukeLevelR = inputSampleR;
}
if (cWet > 0.0) {
outSample = biquadC[2]*inputSampleL+biquadC[3]*biquadC[7]+biquadC[4]*biquadC[8]-biquadC[5]*biquadC[9]-biquadC[6]*biquadC[10];
biquadC[8] = biquadC[7]; biquadC[7] = inputSampleL; biquadC[10] = biquadC[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * cWet) + (nukeLevelL * (1.0-cWet));
nukeLevelL = inputSampleL;
outSample = biquadC[2]*inputSampleR+biquadC[3]*biquadC[11]+biquadC[4]*biquadC[12]-biquadC[5]*biquadC[13]-biquadC[6]*biquadC[14];
biquadC[12] = biquadC[11]; biquadC[11] = inputSampleR; biquadC[14] = biquadC[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * cWet) + (nukeLevelR * (1.0-cWet));
nukeLevelR = inputSampleR;
}
if (dWet > 0.0) {
outSample = biquadD[2]*inputSampleL+biquadD[3]*biquadD[7]+biquadD[4]*biquadD[8]-biquadD[5]*biquadD[9]-biquadD[6]*biquadD[10];
biquadD[8] = biquadD[7]; biquadD[7] = inputSampleL; biquadD[10] = biquadD[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * dWet) + (nukeLevelL * (1.0-dWet));
nukeLevelL = inputSampleL;
outSample = biquadD[2]*inputSampleR+biquadD[3]*biquadD[11]+biquadD[4]*biquadD[12]-biquadD[5]*biquadD[13]-biquadD[6]*biquadD[14];
biquadD[12] = biquadD[11]; biquadD[11] = inputSampleR; biquadD[14] = biquadD[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * dWet) + (nukeLevelR * (1.0-dWet));
nukeLevelR = inputSampleR;
}
if (wet < 1.0) {
inputSampleL = (drySampleL * (1.0-wet))+(inputSampleL * wet);
inputSampleR = (drySampleR * (1.0-wet))+(inputSampleR * wet);
}
//begin 64 bit stereo floating point dither
int expon; frexp((double)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
frexp((double)inputSampleR, &expon);
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
//end 64 bit stereo floating point dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}

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{16F7AB3C-1AE0-4574-B60C-7B4DED82938C}.Release|x64.Build.0 = Release|x64
{16F7AB3C-1AE0-4574-B60C-7B4DED82938C}.Release|x86.ActiveCfg = Release|Win32
{16F7AB3C-1AE0-4574-B60C-7B4DED82938C}.Release|x86.Build.0 = Release|Win32
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HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

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/* ========================================
* XLowpass - XLowpass.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __XLowpass_H
#include "XLowpass.h"
#endif
AudioEffect* createEffectInstance(audioMasterCallback audioMaster) {return new XLowpass(audioMaster);}
XLowpass::XLowpass(audioMasterCallback audioMaster) :
AudioEffectX(audioMaster, kNumPrograms, kNumParameters)
{
A = 0.5;
B = 1.0;
C = 0.0;
D = 1.0;
for (int x = 0; x < 15; x++) {biquad[x] = 0.0; biquadA[x] = 0.0; biquadB[x] = 0.0; biquadC[x] = 0.0; biquadD[x] = 0.0;}
fpdL = 1.0; while (fpdL < 16386) fpdL = rand()*UINT32_MAX;
fpdR = 1.0; while (fpdR < 16386) fpdR = rand()*UINT32_MAX;
//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
}
XLowpass::~XLowpass() {}
VstInt32 XLowpass::getVendorVersion () {return 1000;}
void XLowpass::setProgramName(char *name) {vst_strncpy (_programName, name, kVstMaxProgNameLen);}
void XLowpass::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 XLowpass::getChunk (void** data, bool isPreset)
{
float *chunkData = (float *)calloc(kNumParameters, sizeof(float));
chunkData[0] = A;
chunkData[1] = B;
chunkData[2] = C;
chunkData[3] = D;
/* 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 XLowpass::setChunk (void* data, VstInt32 byteSize, bool isPreset)
{
float *chunkData = (float *)data;
A = pinParameter(chunkData[0]);
B = pinParameter(chunkData[1]);
C = pinParameter(chunkData[2]);
D = pinParameter(chunkData[3]);
/* 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 XLowpass::setParameter(VstInt32 index, float value) {
switch (index) {
case kParamA: A = value; break;
case kParamB: B = value; break;
case kParamC: C = value; break;
case kParamD: D = value; break;
default: throw; // unknown parameter, shouldn't happen!
}
}
float XLowpass::getParameter(VstInt32 index) {
switch (index) {
case kParamA: return A; break;
case kParamB: return B; break;
case kParamC: return C; break;
case kParamD: return D; 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 XLowpass::getParameterName(VstInt32 index, char *text) {
switch (index) {
case kParamA: vst_strncpy (text, "Gain", kVstMaxParamStrLen); break;
case kParamB: vst_strncpy (text, "Freq", kVstMaxParamStrLen); break;
case kParamC: vst_strncpy (text, "Nuke", kVstMaxParamStrLen); break;
case kParamD: vst_strncpy (text, "Dry/Wet", kVstMaxParamStrLen); break;
default: break; // unknown parameter, shouldn't happen!
} //this is our labels for displaying in the VST host
}
void XLowpass::getParameterDisplay(VstInt32 index, char *text) {
switch (index) {
case kParamA: float2string (A, text, kVstMaxParamStrLen); break;
case kParamB: float2string (B, text, kVstMaxParamStrLen); break;
case kParamC: float2string (C, text, kVstMaxParamStrLen); break;
case kParamD: float2string (D, text, kVstMaxParamStrLen); break;
default: break; // unknown parameter, shouldn't happen!
} //this displays the values and handles 'popups' where it's discrete choices
}
void XLowpass::getParameterLabel(VstInt32 index, char *text) {
switch (index) {
case kParamA: vst_strncpy (text, "", kVstMaxParamStrLen); break;
case kParamB: vst_strncpy (text, "", kVstMaxParamStrLen); break;
case kParamC: vst_strncpy (text, "", kVstMaxParamStrLen); break;
case kParamD: vst_strncpy (text, "", kVstMaxParamStrLen); break;
default: break; // unknown parameter, shouldn't happen!
}
}
VstInt32 XLowpass::canDo(char *text)
{ return (_canDo.find(text) == _canDo.end()) ? -1: 1; } // 1 = yes, -1 = no, 0 = don't know
bool XLowpass::getEffectName(char* name) {
vst_strncpy(name, "XLowpass", kVstMaxProductStrLen); return true;
}
VstPlugCategory XLowpass::getPlugCategory() {return kPlugCategEffect;}
bool XLowpass::getProductString(char* text) {
vst_strncpy (text, "airwindows XLowpass", kVstMaxProductStrLen); return true;
}
bool XLowpass::getVendorString(char* text) {
vst_strncpy (text, "airwindows", kVstMaxVendorStrLen); return true;
}

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/* ========================================
* XLowpass - XLowpass.h
* Created 8/12/11 by SPIAdmin
* Copyright (c) 2011 __MyCompanyName__, All rights reserved
* ======================================== */
#ifndef __XLowpass_H
#define __XLowpass_H
#ifndef __audioeffect__
#include "audioeffectx.h"
#endif
#include <set>
#include <string>
#include <math.h>
enum {
kParamA = 0,
kParamB = 1,
kParamC = 2,
kParamD = 3,
kNumParameters = 4
}; //
const int kNumPrograms = 0;
const int kNumInputs = 2;
const int kNumOutputs = 2;
const unsigned long kUniqueId = 'xlop'; //Change this to what the AU identity is!
class XLowpass :
public AudioEffectX
{
public:
XLowpass(audioMasterCallback audioMaster);
~XLowpass();
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;
long double biquad[15];
long double biquadA[15];
long double biquadB[15];
long double biquadC[15];
long double biquadD[15];
uint32_t fpdL;
uint32_t fpdR;
//default stuff
float A;
float B;
float C;
float D;
};
#endif

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/* ========================================
* XLowpass - XLowpass.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __XLowpass_H
#include "XLowpass.h"
#endif
void XLowpass::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
double gain = pow(A+0.5,4);
biquadA[0] = (pow(B,2)*20000.0)/getSampleRate();
if (biquadA[0] < 0.001) biquadA[0] = 0.001;
double compensation = sqrt(biquadA[0])*6.4;
double clipFactor = 1.0+(biquadA[0]*biquadA[0]*C*32.0);
double K = tan(M_PI * biquadA[0]);
double norm = 1.0 / (1.0 + K / 0.7071 + K * K);
biquadA[2] = K * K * norm;
biquadA[3] = 2.0 * biquadA[2];
biquadA[4] = biquadA[2];
biquadA[5] = 2.0 * (K * K - 1.0) * norm;
biquadA[6] = (1.0 - K / 0.7071 + K * K) * norm;
for (int x = 0; x < 7; x++) {biquad[x] = biquadD[x] = biquadC[x] = biquadB[x] = biquadA[x];}
double aWet = 1.0;
double bWet = 1.0;
double cWet = 1.0;
double dWet = C*4.0;
double wet = D;
//four-stage wet/dry control using progressive stages that bypass when not engaged
if (dWet < 1.0) {aWet = dWet; bWet = 0.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 2.0) {bWet = dWet - 1.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 3.0) {cWet = dWet - 2.0; dWet = 0.0;}
else {dWet -= 3.0;}
//this is one way to make a little set of dry/wet stages that are successively added to the
//output as the control is turned up. Each one independently goes from 0-1 and stays at 1
//beyond that point: this is a way to progressively add a 'black box' sound processing
//which lets you fall through to simpler processing at lower settings.
long double outSample = 0.0;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double inputSampleR = *in2;
if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpdL * 1.18e-37;
if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpdR * 1.18e-37;
long double drySampleL = inputSampleL;
long double drySampleR = inputSampleR;
if (gain != 1.0) {
inputSampleL *= gain;
inputSampleR *= gain;
}
long double nukeLevelL = inputSampleL;
long double nukeLevelR = inputSampleR;
outSample = biquad[2]*inputSampleL+biquad[3]*biquad[7]+biquad[4]*biquad[8]-biquad[5]*biquad[9]-biquad[6]*biquad[10];
biquad[8] = biquad[7]; biquad[7] = inputSampleL; biquad[10] = biquad[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; nukeLevelL = inputSampleL;
outSample = biquad[2]*inputSampleR+biquad[3]*biquad[11]+biquad[4]*biquad[12]-biquad[5]*biquad[13]-biquad[6]*biquad[14];
biquad[12] = biquad[11]; biquad[11] = inputSampleR; biquad[14] = biquad[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; nukeLevelR = inputSampleR;
if (aWet > 0.0) {
outSample = biquadA[2]*inputSampleL+biquadA[3]*biquadA[7]+biquadA[4]*biquadA[8]-biquadA[5]*biquadA[9]-biquadA[6]*biquadA[10];
biquadA[8] = biquadA[7]; biquadA[7] = inputSampleL; biquadA[10] = biquadA[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * aWet) + (nukeLevelL * (1.0-aWet));
nukeLevelL = inputSampleL;
outSample = biquadA[2]*inputSampleR+biquadA[3]*biquadA[11]+biquadA[4]*biquadA[12]-biquadA[5]*biquadA[13]-biquadA[6]*biquadA[14];
biquadA[12] = biquadA[11]; biquadA[11] = inputSampleR; biquadA[14] = biquadA[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * aWet) + (nukeLevelR * (1.0-aWet));
nukeLevelR = inputSampleR;
}
if (bWet > 0.0) {
outSample = biquadB[2]*inputSampleL+biquadB[3]*biquadB[7]+biquadB[4]*biquadB[8]-biquadB[5]*biquadB[9]-biquadB[6]*biquadB[10];
biquadB[8] = biquadB[7]; biquadB[7] = inputSampleL; biquadB[10] = biquadB[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * bWet) + (nukeLevelL * (1.0-bWet));
nukeLevelL = inputSampleL;
outSample = biquadB[2]*inputSampleR+biquadB[3]*biquadB[11]+biquadB[4]*biquadB[12]-biquadB[5]*biquadB[13]-biquadB[6]*biquadB[14];
biquadB[12] = biquadB[11]; biquadB[11] = inputSampleR; biquadB[14] = biquadB[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * bWet) + (nukeLevelR * (1.0-bWet));
nukeLevelR = inputSampleR;
}
if (cWet > 0.0) {
outSample = biquadC[2]*inputSampleL+biquadC[3]*biquadC[7]+biquadC[4]*biquadC[8]-biquadC[5]*biquadC[9]-biquadC[6]*biquadC[10];
biquadC[8] = biquadC[7]; biquadC[7] = inputSampleL; biquadC[10] = biquadC[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * cWet) + (nukeLevelL * (1.0-cWet));
nukeLevelL = inputSampleL;
outSample = biquadC[2]*inputSampleR+biquadC[3]*biquadC[11]+biquadC[4]*biquadC[12]-biquadC[5]*biquadC[13]-biquadC[6]*biquadC[14];
biquadC[12] = biquadC[11]; biquadC[11] = inputSampleR; biquadC[14] = biquadC[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * cWet) + (nukeLevelR * (1.0-cWet));
nukeLevelR = inputSampleR;
}
if (dWet > 0.0) {
outSample = biquadD[2]*inputSampleL+biquadD[3]*biquadD[7]+biquadD[4]*biquadD[8]-biquadD[5]*biquadD[9]-biquadD[6]*biquadD[10];
biquadD[8] = biquadD[7]; biquadD[7] = inputSampleL; biquadD[10] = biquadD[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * dWet) + (nukeLevelL * (1.0-dWet));
nukeLevelL = inputSampleL;
outSample = biquadD[2]*inputSampleR+biquadD[3]*biquadD[11]+biquadD[4]*biquadD[12]-biquadD[5]*biquadD[13]-biquadD[6]*biquadD[14];
biquadD[12] = biquadD[11]; biquadD[11] = inputSampleR; biquadD[14] = biquadD[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * dWet) + (nukeLevelR * (1.0-dWet));
nukeLevelR = inputSampleR;
}
if (wet < 1.0) {
inputSampleL = (drySampleL * (1.0-wet))+(inputSampleL * wet);
inputSampleR = (drySampleR * (1.0-wet))+(inputSampleR * wet);
}
//begin 32 bit stereo floating point dither
int expon; frexpf((float)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
frexpf((float)inputSampleR, &expon);
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
//end 32 bit stereo floating point dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
void XLowpass::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
double gain = pow(A+0.5,4);
biquadA[0] = (pow(B,2)*20000.0)/getSampleRate();
if (biquadA[0] < 0.001) biquadA[0] = 0.001;
double compensation = sqrt(biquadA[0])*6.4;
double clipFactor = 1.0+(biquadA[0]*biquadA[0]*C*32.0);
double K = tan(M_PI * biquadA[0]);
double norm = 1.0 / (1.0 + K / 0.7071 + K * K);
biquadA[2] = K * K * norm;
biquadA[3] = 2.0 * biquadA[2];
biquadA[4] = biquadA[2];
biquadA[5] = 2.0 * (K * K - 1.0) * norm;
biquadA[6] = (1.0 - K / 0.7071 + K * K) * norm;
for (int x = 0; x < 7; x++) {biquad[x] = biquadD[x] = biquadC[x] = biquadB[x] = biquadA[x];}
double aWet = 1.0;
double bWet = 1.0;
double cWet = 1.0;
double dWet = C*4.0;
double wet = D;
//four-stage wet/dry control using progressive stages that bypass when not engaged
if (dWet < 1.0) {aWet = dWet; bWet = 0.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 2.0) {bWet = dWet - 1.0; cWet = 0.0; dWet = 0.0;}
else if (dWet < 3.0) {cWet = dWet - 2.0; dWet = 0.0;}
else {dWet -= 3.0;}
//this is one way to make a little set of dry/wet stages that are successively added to the
//output as the control is turned up. Each one independently goes from 0-1 and stays at 1
//beyond that point: this is a way to progressively add a 'black box' sound processing
//which lets you fall through to simpler processing at lower settings.
long double outSample = 0.0;
while (--sampleFrames >= 0)
{
long double inputSampleL = *in1;
long double inputSampleR = *in2;
if (fabs(inputSampleL)<1.18e-43) inputSampleL = fpdL * 1.18e-43;
if (fabs(inputSampleR)<1.18e-43) inputSampleR = fpdR * 1.18e-43;
long double drySampleL = inputSampleL;
long double drySampleR = inputSampleR;
if (gain != 1.0) {
inputSampleL *= gain;
inputSampleR *= gain;
}
long double nukeLevelL = inputSampleL;
long double nukeLevelR = inputSampleR;
outSample = biquad[2]*inputSampleL+biquad[3]*biquad[7]+biquad[4]*biquad[8]-biquad[5]*biquad[9]-biquad[6]*biquad[10];
biquad[8] = biquad[7]; biquad[7] = inputSampleL; biquad[10] = biquad[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; nukeLevelL = inputSampleL;
outSample = biquad[2]*inputSampleR+biquad[3]*biquad[11]+biquad[4]*biquad[12]-biquad[5]*biquad[13]-biquad[6]*biquad[14];
biquad[12] = biquad[11]; biquad[11] = inputSampleR; biquad[14] = biquad[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquad[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; nukeLevelR = inputSampleR;
if (aWet > 0.0) {
outSample = biquadA[2]*inputSampleL+biquadA[3]*biquadA[7]+biquadA[4]*biquadA[8]-biquadA[5]*biquadA[9]-biquadA[6]*biquadA[10];
biquadA[8] = biquadA[7]; biquadA[7] = inputSampleL; biquadA[10] = biquadA[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * aWet) + (nukeLevelL * (1.0-aWet));
nukeLevelL = inputSampleL;
outSample = biquadA[2]*inputSampleR+biquadA[3]*biquadA[11]+biquadA[4]*biquadA[12]-biquadA[5]*biquadA[13]-biquadA[6]*biquadA[14];
biquadA[12] = biquadA[11]; biquadA[11] = inputSampleR; biquadA[14] = biquadA[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadA[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * aWet) + (nukeLevelR * (1.0-aWet));
nukeLevelR = inputSampleR;
}
if (bWet > 0.0) {
outSample = biquadB[2]*inputSampleL+biquadB[3]*biquadB[7]+biquadB[4]*biquadB[8]-biquadB[5]*biquadB[9]-biquadB[6]*biquadB[10];
biquadB[8] = biquadB[7]; biquadB[7] = inputSampleL; biquadB[10] = biquadB[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * bWet) + (nukeLevelL * (1.0-bWet));
nukeLevelL = inputSampleL;
outSample = biquadB[2]*inputSampleR+biquadB[3]*biquadB[11]+biquadB[4]*biquadB[12]-biquadB[5]*biquadB[13]-biquadB[6]*biquadB[14];
biquadB[12] = biquadB[11]; biquadB[11] = inputSampleR; biquadB[14] = biquadB[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadB[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * bWet) + (nukeLevelR * (1.0-bWet));
nukeLevelR = inputSampleR;
}
if (cWet > 0.0) {
outSample = biquadC[2]*inputSampleL+biquadC[3]*biquadC[7]+biquadC[4]*biquadC[8]-biquadC[5]*biquadC[9]-biquadC[6]*biquadC[10];
biquadC[8] = biquadC[7]; biquadC[7] = inputSampleL; biquadC[10] = biquadC[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * cWet) + (nukeLevelL * (1.0-cWet));
nukeLevelL = inputSampleL;
outSample = biquadC[2]*inputSampleR+biquadC[3]*biquadC[11]+biquadC[4]*biquadC[12]-biquadC[5]*biquadC[13]-biquadC[6]*biquadC[14];
biquadC[12] = biquadC[11]; biquadC[11] = inputSampleR; biquadC[14] = biquadC[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadC[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * cWet) + (nukeLevelR * (1.0-cWet));
nukeLevelR = inputSampleR;
}
if (dWet > 0.0) {
outSample = biquadD[2]*inputSampleL+biquadD[3]*biquadD[7]+biquadD[4]*biquadD[8]-biquadD[5]*biquadD[9]-biquadD[6]*biquadD[10];
biquadD[8] = biquadD[7]; biquadD[7] = inputSampleL; biquadD[10] = biquadD[9];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[9] = sin(outSample); //DF1 left
inputSampleL = outSample / compensation; inputSampleL = (inputSampleL * dWet) + (nukeLevelL * (1.0-dWet));
nukeLevelL = inputSampleL;
outSample = biquadD[2]*inputSampleR+biquadD[3]*biquadD[11]+biquadD[4]*biquadD[12]-biquadD[5]*biquadD[13]-biquadD[6]*biquadD[14];
biquadD[12] = biquadD[11]; biquadD[11] = inputSampleR; biquadD[14] = biquadD[13];
outSample *= clipFactor;
if (outSample > 1.57079633) outSample = 1.57079633;
if (outSample < -1.57079633) outSample = -1.57079633;
biquadD[13] = sin(outSample); //DF1 right
inputSampleR = outSample / compensation; inputSampleR = (inputSampleR * dWet) + (nukeLevelR * (1.0-dWet));
nukeLevelR = inputSampleR;
}
if (wet < 1.0) {
inputSampleL = (drySampleL * (1.0-wet))+(inputSampleL * wet);
inputSampleR = (drySampleR * (1.0-wet))+(inputSampleR * wet);
}
//begin 64 bit stereo floating point dither
int expon; frexp((double)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
frexp((double)inputSampleR, &expon);
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
//end 64 bit stereo floating point dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}

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EXPORTS
VSTPluginMain
main=VSTPluginMain