From 2970a44069ec3854ef765b0cf7320832b8025af8 Mon Sep 17 00:00:00 2001 From: Chris Johnson Date: Sun, 22 Dec 2019 21:05:17 -0500 Subject: BiquadOneHalf --- .../LinuxVST/src/BiquadOneHalf/BiquadOneHalf.cpp | 144 ++++++++++ plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalf.h | 72 +++++ .../src/BiquadOneHalf/BiquadOneHalfProc.cpp | 313 +++++++++++++++++++++ 3 files changed, 529 insertions(+) create mode 100755 plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalf.cpp create mode 100755 plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalf.h create mode 100755 plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalfProc.cpp (limited to 'plugins/LinuxVST/src') diff --git a/plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalf.cpp b/plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalf.cpp new file mode 100755 index 0000000..c3a11e1 --- /dev/null +++ b/plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalf.cpp @@ -0,0 +1,144 @@ +/* ======================================== + * BiquadOneHalf - BiquadOneHalf.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __BiquadOneHalf_H +#include "BiquadOneHalf.h" +#endif + +AudioEffect* createEffectInstance(audioMasterCallback audioMaster) {return new BiquadOneHalf(audioMaster);} + +BiquadOneHalf::BiquadOneHalf(audioMasterCallback audioMaster) : + AudioEffectX(audioMaster, kNumPrograms, kNumParameters) +{ + for (int x = 0; x < 9; x++) {biquadAL[x] = 0.0; biquadAR[x] = 0.0; biquadBL[x] = 0.0; biquadBR[x] = 0.0;} + flip = false; + A = 0.0; + B = 0.0; + C = 0.0; + D = 0.0; + fpd = 17; + //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 +} + +BiquadOneHalf::~BiquadOneHalf() {} +VstInt32 BiquadOneHalf::getVendorVersion () {return 1000;} +void BiquadOneHalf::setProgramName(char *name) {vst_strncpy (_programName, name, kVstMaxProgNameLen);} +void BiquadOneHalf::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 BiquadOneHalf::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 BiquadOneHalf::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 BiquadOneHalf::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 BiquadOneHalf::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 BiquadOneHalf::getParameterName(VstInt32 index, char *text) { + switch (index) { + case kParamA: vst_strncpy (text, "Type", kVstMaxParamStrLen); break; + case kParamB: vst_strncpy (text, "Freq", kVstMaxParamStrLen); break; + case kParamC: vst_strncpy (text, "Q", kVstMaxParamStrLen); break; + case kParamD: vst_strncpy (text, "Inv/Wet", kVstMaxParamStrLen); break; + default: break; // unknown parameter, shouldn't happen! + } //this is our labels for displaying in the VST host +} + +void BiquadOneHalf::getParameterDisplay(VstInt32 index, char *text) { + switch (index) { + case kParamA: float2string ((float)ceil((A*3.999)+0.00001), text, kVstMaxParamStrLen); break; + case kParamB: float2string ((B*B*B*0.9999)+0.0001, text, kVstMaxParamStrLen); break; + case kParamC: float2string ((C*C*C*29.99)+0.01, text, kVstMaxParamStrLen); break; + case kParamD: float2string ((D*2.0)-1.0, text, kVstMaxParamStrLen); break; + default: break; // unknown parameter, shouldn't happen! + } //this displays the values and handles 'popups' where it's discrete choices +} + +void BiquadOneHalf::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 BiquadOneHalf::canDo(char *text) +{ return (_canDo.find(text) == _canDo.end()) ? -1: 1; } // 1 = yes, -1 = no, 0 = don't know + +bool BiquadOneHalf::getEffectName(char* name) { + vst_strncpy(name, "BiquadOneHalf", kVstMaxProductStrLen); return true; +} + +VstPlugCategory BiquadOneHalf::getPlugCategory() {return kPlugCategEffect;} + +bool BiquadOneHalf::getProductString(char* text) { + vst_strncpy (text, "airwindows BiquadOneHalf", kVstMaxProductStrLen); return true; +} + +bool BiquadOneHalf::getVendorString(char* text) { + vst_strncpy (text, "airwindows", kVstMaxVendorStrLen); return true; +} diff --git a/plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalf.h b/plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalf.h new file mode 100755 index 0000000..cd9dacc --- /dev/null +++ b/plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalf.h @@ -0,0 +1,72 @@ +/* ======================================== + * BiquadOneHalf - BiquadOneHalf.h + * Created 8/12/11 by SPIAdmin + * Copyright (c) 2011 __MyCompanyName__, All rights reserved + * ======================================== */ + +#ifndef __BiquadOneHalf_H +#define __BiquadOneHalf_H + +#ifndef __audioeffect__ +#include "audioeffectx.h" +#endif + +#include +#include +#include + +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 = 'biqf'; //Change this to what the AU identity is! + +class BiquadOneHalf : + public AudioEffectX +{ +public: + BiquadOneHalf(audioMasterCallback audioMaster); + ~BiquadOneHalf(); + 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 biquadAL[9]; + long double biquadAR[9]; + long double biquadBL[9]; + long double biquadBR[9]; + bool flip; + uint32_t fpd; + //default stuff + + float A; + float B; + float C; + float D; +}; + +#endif diff --git a/plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalfProc.cpp b/plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalfProc.cpp new file mode 100755 index 0000000..e126dcf --- /dev/null +++ b/plugins/LinuxVST/src/BiquadOneHalf/BiquadOneHalfProc.cpp @@ -0,0 +1,313 @@ +/* ======================================== + * BiquadOneHalf - BiquadOneHalf.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __BiquadOneHalf_H +#include "BiquadOneHalf.h" +#endif + +void BiquadOneHalf::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) +{ + float* in1 = inputs[0]; + float* in2 = inputs[1]; + float* out1 = outputs[0]; + float* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + + int type = ceil((A*3.999)+0.00001); + + biquadAL[0] = ((B*B*B*0.9999)+0.0001)*0.499; + if (biquadAL[0] < 0.0001) biquadAL[0] = 0.0001; + + biquadAL[1] = (C*C*C*29.99)+0.01; + if (biquadAL[1] < 0.0001) biquadAL[1] = 0.0001; + + double wet = (D*2.0)-1.0; + + //biquad contains these values: + //[0] is frequency: 0.000001 to 0.499999 is near-zero to near-Nyquist + //[1] is resonance, 0.7071 is Butterworth. Also can't be zero + //[2] is a0 but you need distinct ones for additional biquad instances so it's here + //[3] is a1 but you need distinct ones for additional biquad instances so it's here + //[4] is a2 but you need distinct ones for additional biquad instances so it's here + //[5] is b1 but you need distinct ones for additional biquad instances so it's here + //[6] is b2 but you need distinct ones for additional biquad instances so it's here + //[7] is stored delayed sample (freq and res are stored so you can move them sample by sample) + //[8] is stored delayed sample (you have to include the coefficient making code if you do that) + + //to build a dedicated filter, rename 'biquad' to whatever the new filter is, then + //put this code either within the sample buffer (for smoothly modulating freq or res) + //or in this 'read the controls' area (for letting you change freq and res with controls) + //or in 'reset' if the freq and res are absolutely fixed (use GetSampleRate to define freq) + + if (type == 1) { //lowpass + double K = tan(M_PI * biquadAL[0]); + double norm = 1.0 / (1.0 + K / biquadAL[1] + K * K); + biquadAL[2] = K * K * norm; + biquadAL[3] = 2.0 * biquadAL[2]; + biquadAL[4] = biquadAL[2]; + biquadAL[5] = 2.0 * (K * K - 1.0) * norm; + biquadAL[6] = (1.0 - K / biquadAL[1] + K * K) * norm; + } + + if (type == 2) { //highpass + double K = tan(M_PI * biquadAL[0]); + double norm = 1.0 / (1.0 + K / biquadAL[1] + K * K); + biquadAL[2] = norm; + biquadAL[3] = -2.0 * biquadAL[2]; + biquadAL[4] = biquadAL[2]; + biquadAL[5] = 2.0 * (K * K - 1.0) * norm; + biquadAL[6] = (1.0 - K / biquadAL[1] + K * K) * norm; + } + + if (type == 3) { //bandpass + double K = tan(M_PI * biquadAL[0]); + double norm = 1.0 / (1.0 + K / biquadAL[1] + K * K); + biquadAL[2] = K / biquadAL[1] * norm; + biquadAL[3] = 0.0; //bandpass can simplify the biquad kernel: leave out this multiply + biquadAL[4] = -biquadAL[2]; + biquadAL[5] = 2.0 * (K * K - 1.0) * norm; + biquadAL[6] = (1.0 - K / biquadAL[1] + K * K) * norm; + } + + if (type == 4) { //notch + double K = tan(M_PI * biquadAL[0]); + double norm = 1.0 / (1.0 + K / biquadAL[1] + K * K); + biquadAL[2] = (1.0 + K * K) * norm; + biquadAL[3] = 2.0 * (K * K - 1) * norm; + biquadAL[4] = biquadAL[2]; + biquadAL[5] = biquadAL[3]; + biquadAL[6] = (1.0 - K / biquadAL[1] + K * K) * norm; + } + for (int x = 0; x < 7; x++) {biquadAR[x] = biquadBL[x] = biquadBR[x] = biquadAL[x];} + + while (--sampleFrames >= 0) + { + long double inputSampleL = *in1; + long double inputSampleR = *in2; + if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpd * 1.18e-37; + if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpd * 1.18e-37; + long double drySampleL = inputSampleL; + long double drySampleR = inputSampleR; + + inputSampleL = sin(inputSampleL); + inputSampleR = sin(inputSampleR); + //encode Console5: good cleanness + + long double tempSampleL; + long double tempSampleR; + + if (flip) + { + tempSampleL = (inputSampleL * biquadAL[2]) + biquadAL[7]; + biquadAL[7] = (inputSampleL * biquadAL[3]) - (tempSampleL * biquadAL[5]) + biquadAL[8]; + biquadAL[8] = (inputSampleL * biquadAL[4]) - (tempSampleL * biquadAL[6]); + inputSampleL = tempSampleL; + tempSampleR = (inputSampleR * biquadAR[2]) + biquadAR[7]; + biquadAR[7] = (inputSampleR * biquadAR[3]) - (tempSampleR * biquadAR[5]) + biquadAR[8]; + biquadAR[8] = (inputSampleR * biquadAR[4]) - (tempSampleR * biquadAR[6]); + inputSampleR = tempSampleR; + } + else + { + tempSampleL = (inputSampleL * biquadBL[2]) + biquadBL[7]; + biquadBL[7] = (inputSampleL * biquadBL[3]) - (tempSampleL * biquadBL[5]) + biquadBL[8]; + biquadBL[8] = (inputSampleL * biquadBL[4]) - (tempSampleL * biquadBL[6]); + inputSampleL = tempSampleL; + tempSampleR = (inputSampleR * biquadBR[2]) + biquadBR[7]; + biquadBR[7] = (inputSampleR * biquadBR[3]) - (tempSampleR * biquadBR[5]) + biquadBR[8]; + biquadBR[8] = (inputSampleR * biquadBR[4]) - (tempSampleR * biquadBR[6]); + inputSampleR = tempSampleR; + } + flip = !flip; + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + if (wet < 1.0) { + inputSampleL = (inputSampleL*wet) + (drySampleL*(1.0-fabs(wet))); + inputSampleR = (inputSampleR*wet) + (drySampleR*(1.0-fabs(wet))); + //inv/dry/wet lets us turn LP into HP and band into notch + } + + //begin 32 bit stereo floating point dither + int expon; frexpf((float)inputSampleL, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); + frexpf((float)inputSampleR, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleR += ((double(fpd)-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 BiquadOneHalf::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) +{ + double* in1 = inputs[0]; + double* in2 = inputs[1]; + double* out1 = outputs[0]; + double* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + + int type = ceil((A*3.999)+0.00001); + + biquadAL[0] = ((B*B*B*0.9999)+0.0001)*0.499; + if (biquadAL[0] < 0.0001) biquadAL[0] = 0.0001; + + biquadAL[1] = (C*C*C*29.99)+0.01; + if (biquadAL[1] < 0.0001) biquadAL[1] = 0.0001; + + double wet = (D*2.0)-1.0; + + //biquad contains these values: + //[0] is frequency: 0.000001 to 0.499999 is near-zero to near-Nyquist + //[1] is resonance, 0.7071 is Butterworth. Also can't be zero + //[2] is a0 but you need distinct ones for additional biquad instances so it's here + //[3] is a1 but you need distinct ones for additional biquad instances so it's here + //[4] is a2 but you need distinct ones for additional biquad instances so it's here + //[5] is b1 but you need distinct ones for additional biquad instances so it's here + //[6] is b2 but you need distinct ones for additional biquad instances so it's here + //[7] is stored delayed sample (freq and res are stored so you can move them sample by sample) + //[8] is stored delayed sample (you have to include the coefficient making code if you do that) + + //to build a dedicated filter, rename 'biquad' to whatever the new filter is, then + //put this code either within the sample buffer (for smoothly modulating freq or res) + //or in this 'read the controls' area (for letting you change freq and res with controls) + //or in 'reset' if the freq and res are absolutely fixed (use GetSampleRate to define freq) + + if (type == 1) { //lowpass + double K = tan(M_PI * biquadAL[0]); + double norm = 1.0 / (1.0 + K / biquadAL[1] + K * K); + biquadAL[2] = K * K * norm; + biquadAL[3] = 2.0 * biquadAL[2]; + biquadAL[4] = biquadAL[2]; + biquadAL[5] = 2.0 * (K * K - 1.0) * norm; + biquadAL[6] = (1.0 - K / biquadAL[1] + K * K) * norm; + } + + if (type == 2) { //highpass + double K = tan(M_PI * biquadAL[0]); + double norm = 1.0 / (1.0 + K / biquadAL[1] + K * K); + biquadAL[2] = norm; + biquadAL[3] = -2.0 * biquadAL[2]; + biquadAL[4] = biquadAL[2]; + biquadAL[5] = 2.0 * (K * K - 1.0) * norm; + biquadAL[6] = (1.0 - K / biquadAL[1] + K * K) * norm; + } + + if (type == 3) { //bandpass + double K = tan(M_PI * biquadAL[0]); + double norm = 1.0 / (1.0 + K / biquadAL[1] + K * K); + biquadAL[2] = K / biquadAL[1] * norm; + biquadAL[3] = 0.0; //bandpass can simplify the biquad kernel: leave out this multiply + biquadAL[4] = -biquadAL[2]; + biquadAL[5] = 2.0 * (K * K - 1.0) * norm; + biquadAL[6] = (1.0 - K / biquadAL[1] + K * K) * norm; + } + + if (type == 4) { //notch + double K = tan(M_PI * biquadAL[0]); + double norm = 1.0 / (1.0 + K / biquadAL[1] + K * K); + biquadAL[2] = (1.0 + K * K) * norm; + biquadAL[3] = 2.0 * (K * K - 1) * norm; + biquadAL[4] = biquadAL[2]; + biquadAL[5] = biquadAL[3]; + biquadAL[6] = (1.0 - K / biquadAL[1] + K * K) * norm; + } + for (int x = 0; x < 7; x++) {biquadAR[x] = biquadBL[x] = biquadBR[x] = biquadAL[x];} + + while (--sampleFrames >= 0) + { + long double inputSampleL = *in1; + long double inputSampleR = *in2; + if (fabs(inputSampleL)<1.18e-43) inputSampleL = fpd * 1.18e-43; + if (fabs(inputSampleR)<1.18e-43) inputSampleR = fpd * 1.18e-43; + long double drySampleL = inputSampleL; + long double drySampleR = inputSampleR; + + + inputSampleL = sin(inputSampleL); + inputSampleR = sin(inputSampleR); + //encode Console5: good cleanness + + long double tempSampleL; + long double tempSampleR; + + if (flip) + { + tempSampleL = (inputSampleL * biquadAL[2]) + biquadAL[7]; + biquadAL[7] = (inputSampleL * biquadAL[3]) - (tempSampleL * biquadAL[5]) + biquadAL[8]; + biquadAL[8] = (inputSampleL * biquadAL[4]) - (tempSampleL * biquadAL[6]); + inputSampleL = tempSampleL; + tempSampleR = (inputSampleR * biquadAR[2]) + biquadAR[7]; + biquadAR[7] = (inputSampleR * biquadAR[3]) - (tempSampleR * biquadAR[5]) + biquadAR[8]; + biquadAR[8] = (inputSampleR * biquadAR[4]) - (tempSampleR * biquadAR[6]); + inputSampleR = tempSampleR; + } + else + { + tempSampleL = (inputSampleL * biquadBL[2]) + biquadBL[7]; + biquadBL[7] = (inputSampleL * biquadBL[3]) - (tempSampleL * biquadBL[5]) + biquadBL[8]; + biquadBL[8] = (inputSampleL * biquadBL[4]) - (tempSampleL * biquadBL[6]); + inputSampleL = tempSampleL; + tempSampleR = (inputSampleR * biquadBR[2]) + biquadBR[7]; + biquadBR[7] = (inputSampleR * biquadBR[3]) - (tempSampleR * biquadBR[5]) + biquadBR[8]; + biquadBR[8] = (inputSampleR * biquadBR[4]) - (tempSampleR * biquadBR[6]); + inputSampleR = tempSampleR; + } + flip = !flip; + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + if (wet < 1.0) { + inputSampleL = (inputSampleL*wet) + (drySampleL*(1.0-fabs(wet))); + inputSampleR = (inputSampleR*wet) + (drySampleR*(1.0-fabs(wet))); + //inv/dry/wet lets us turn LP into HP and band into notch + } + + //begin 64 bit stereo floating point dither + int expon; frexp((double)inputSampleL, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62)); + frexp((double)inputSampleR, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleR += ((double(fpd)-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++; + } +} -- cgit v1.2.3