diff options
author | Chris Johnson <jinx6568@sover.net> | 2018-12-16 13:54:56 -0500 |
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committer | Chris Johnson <jinx6568@sover.net> | 2018-12-16 13:54:56 -0500 |
commit | 2a6e1bef6b4bd039386aa24c988f5d69364ff874 (patch) | |
tree | ef44a92cb132b9b277dcbbb5120b063213e674ae /plugins/LinuxVST | |
parent | b25674789c87a1564af673faff8a7ee3dfcbcaf2 (diff) | |
download | airwindows-lv2-port-2a6e1bef6b4bd039386aa24c988f5d69364ff874.tar.gz airwindows-lv2-port-2a6e1bef6b4bd039386aa24c988f5d69364ff874.tar.bz2 airwindows-lv2-port-2a6e1bef6b4bd039386aa24c988f5d69364ff874.zip |
TapeDelay (and DitherMeTimbers overs update)
Diffstat (limited to 'plugins/LinuxVST')
-rwxr-xr-x | plugins/LinuxVST/CMakeLists.txt | 1 | ||||
-rwxr-xr-x | plugins/LinuxVST/src/DitherMeDiskers/DitherMeDiskersProc.cpp | 34 | ||||
-rwxr-xr-x | plugins/LinuxVST/src/DitherMeTimbers/DitherMeTimbersProc.cpp | 36 | ||||
-rwxr-xr-x | plugins/LinuxVST/src/TapeDelay/TapeDelay.cpp | 167 | ||||
-rwxr-xr-x | plugins/LinuxVST/src/TapeDelay/TapeDelay.h | 81 | ||||
-rwxr-xr-x | plugins/LinuxVST/src/TapeDelay/TapeDelayProc.cpp | 363 |
6 files changed, 681 insertions, 1 deletions
diff --git a/plugins/LinuxVST/CMakeLists.txt b/plugins/LinuxVST/CMakeLists.txt index 590aa34..c60caf8 100755 --- a/plugins/LinuxVST/CMakeLists.txt +++ b/plugins/LinuxVST/CMakeLists.txt @@ -124,6 +124,7 @@ add_airwindows_plugin(SubsOnly) add_airwindows_plugin(Surge) add_airwindows_plugin(SurgeTide) add_airwindows_plugin(Swell) +add_airwindows_plugin(TapeDelay) add_airwindows_plugin(TapeDither) add_airwindows_plugin(TapeDust) add_airwindows_plugin(Thunder) diff --git a/plugins/LinuxVST/src/DitherMeDiskers/DitherMeDiskersProc.cpp b/plugins/LinuxVST/src/DitherMeDiskers/DitherMeDiskersProc.cpp index 9f8a34e..746f713 100755 --- a/plugins/LinuxVST/src/DitherMeDiskers/DitherMeDiskersProc.cpp +++ b/plugins/LinuxVST/src/DitherMeDiskers/DitherMeDiskersProc.cpp @@ -42,6 +42,23 @@ void DitherMeDiskers::processReplacing(float **inputs, float **outputs, VstInt32 noiseShapingR += outputSampleR; noiseShapingR -= lastSampleR; + if (outputSampleL > 32760.0) { + outputSampleL = 32760.0; + noiseShapingL *= 0.5; + } + if (outputSampleR > 32760.0) { + outputSampleR = 32760.0; + noiseShapingR *= 0.5; + } + if (outputSampleL < -32760.0) { + outputSampleL = -32760.0; + noiseShapingL *= 0.5; + } + if (outputSampleR < -32760.0) { + outputSampleR = -32760.0; + noiseShapingR *= 0.5; + } + *out1 = outputSampleL / 32768.0; *out2 = outputSampleR / 32768.0; @@ -87,6 +104,23 @@ void DitherMeDiskers::processDoubleReplacing(double **inputs, double **outputs, noiseShapingR += outputSampleR; noiseShapingR -= lastSampleR; + if (outputSampleL > 32760.0) { + outputSampleL = 32760.0; + noiseShapingL *= 0.5; + } + if (outputSampleR > 32760.0) { + outputSampleR = 32760.0; + noiseShapingR *= 0.5; + } + if (outputSampleL < -32760.0) { + outputSampleL = -32760.0; + noiseShapingL *= 0.5; + } + if (outputSampleR < -32760.0) { + outputSampleR = -32760.0; + noiseShapingR *= 0.5; + } + *out1 = outputSampleL / 32768.0; *out2 = outputSampleR / 32768.0; diff --git a/plugins/LinuxVST/src/DitherMeTimbers/DitherMeTimbersProc.cpp b/plugins/LinuxVST/src/DitherMeTimbers/DitherMeTimbersProc.cpp index 7ba84d7..4641d8b 100755 --- a/plugins/LinuxVST/src/DitherMeTimbers/DitherMeTimbersProc.cpp +++ b/plugins/LinuxVST/src/DitherMeTimbers/DitherMeTimbersProc.cpp @@ -41,7 +41,24 @@ void DitherMeTimbers::processReplacing(float **inputs, float **outputs, VstInt32 noiseShapingR += outputSampleR; noiseShapingR -= lastSampleR; - + + if (outputSampleL > 8388600.0) { + outputSampleL = 8388600.0; + noiseShapingL *= 0.5; + } + if (outputSampleR > 8388600.0) { + outputSampleR = 8388600.0; + noiseShapingR *= 0.5; + } + if (outputSampleL < -8388600.0) { + outputSampleL = -8388600.0; + noiseShapingL *= 0.5; + } + if (outputSampleR < -8388600.0) { + outputSampleR = -8388600.0; + noiseShapingR *= 0.5; + } + *out1 = outputSampleL / 8388608.0; *out2 = outputSampleR / 8388608.0; @@ -87,6 +104,23 @@ void DitherMeTimbers::processDoubleReplacing(double **inputs, double **outputs, noiseShapingR += outputSampleR; noiseShapingR -= lastSampleR; + if (outputSampleL > 8388600.0) { + outputSampleL = 8388600.0; + noiseShapingL *= 0.5; + } + if (outputSampleR > 8388600.0) { + outputSampleR = 8388600.0; + noiseShapingR *= 0.5; + } + if (outputSampleL < -8388600.0) { + outputSampleL = -8388600.0; + noiseShapingL *= 0.5; + } + if (outputSampleR < -8388600.0) { + outputSampleR = -8388600.0; + noiseShapingR *= 0.5; + } + *out1 = outputSampleL / 8388608.0; *out2 = outputSampleR / 8388608.0; diff --git a/plugins/LinuxVST/src/TapeDelay/TapeDelay.cpp b/plugins/LinuxVST/src/TapeDelay/TapeDelay.cpp new file mode 100755 index 0000000..f7690db --- /dev/null +++ b/plugins/LinuxVST/src/TapeDelay/TapeDelay.cpp @@ -0,0 +1,167 @@ +/* ======================================== + * TapeDelay - TapeDelay.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __TapeDelay_H +#include "TapeDelay.h" +#endif + +AudioEffect* createEffectInstance(audioMasterCallback audioMaster) {return new TapeDelay(audioMaster);} + +TapeDelay::TapeDelay(audioMasterCallback audioMaster) : + AudioEffectX(audioMaster, kNumPrograms, kNumParameters) +{ + A = 1.0; + B = 0.0; + C = 0.5; + D = 0.0; //0 to 130% + E = 1.0; //-1.0 to 1.0 + F = 0.0; //8 taps + + for(int count = 0; count < 257; count++) {pL[count] = 0;pR[count] = 0;} + for(delay = 0; delay < 44100; delay++) {dL[delay] = 0.0;dR[delay] = 0.0;} + maxdelay = 0; + delay = 0; + gcount = 0; + chase = 0; + + fpNShapeL = 0.0; + fpNShapeR = 0.0; + //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 +} + +TapeDelay::~TapeDelay() {} +VstInt32 TapeDelay::getVendorVersion () {return 1000;} +void TapeDelay::setProgramName(char *name) {vst_strncpy (_programName, name, kVstMaxProgNameLen);} +void TapeDelay::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 TapeDelay::getChunk (void** data, bool isPreset) +{ + float *chunkData = (float *)calloc(kNumParameters, sizeof(float)); + chunkData[0] = A; + chunkData[1] = B; + chunkData[2] = C; + chunkData[3] = D; + chunkData[4] = E; + chunkData[5] = F; + /* 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 TapeDelay::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]); + E = pinParameter(chunkData[4]); + F = pinParameter(chunkData[5]); + /* 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 TapeDelay::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; + case kParamE: E = value; break; + case kParamF: F = value; break; + default: throw; // unknown parameter, shouldn't happen! + } +} + +float TapeDelay::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; + case kParamE: return E; break; + case kParamF: return F; 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 TapeDelay::getParameterName(VstInt32 index, char *text) { + switch (index) { + case kParamA: vst_strncpy (text, "Dry", kVstMaxParamStrLen); break; + case kParamB: vst_strncpy (text, "Wet", kVstMaxParamStrLen); break; + case kParamC: vst_strncpy (text, "Delay", kVstMaxParamStrLen); break; + case kParamD: vst_strncpy (text, "Feedbak", kVstMaxParamStrLen); break; + case kParamE: vst_strncpy (text, "Lean/Ft", kVstMaxParamStrLen); break; + case kParamF: vst_strncpy (text, "Depth", kVstMaxParamStrLen); break; + default: break; // unknown parameter, shouldn't happen! + } //this is our labels for displaying in the VST host +} + +void TapeDelay::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; + case kParamE: float2string (((E*2.0)-1.0), text, kVstMaxParamStrLen); break;//-1.0 to 1.0 + case kParamF: float2string (floor((F*29.0)+3.0), text, kVstMaxParamStrLen); break;//taps 3 8 default 32 + default: break; // unknown parameter, shouldn't happen! + } //this displays the values and handles 'popups' where it's discrete choices +} + +void TapeDelay::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; + case kParamE: vst_strncpy (text, "", kVstMaxParamStrLen); break; + case kParamF: vst_strncpy (text, "taps", kVstMaxParamStrLen); break; + default: break; // unknown parameter, shouldn't happen! + } +} + +VstInt32 TapeDelay::canDo(char *text) +{ return (_canDo.find(text) == _canDo.end()) ? -1: 1; } // 1 = yes, -1 = no, 0 = don't know + +bool TapeDelay::getEffectName(char* name) { + vst_strncpy(name, "TapeDelay", kVstMaxProductStrLen); return true; +} + +VstPlugCategory TapeDelay::getPlugCategory() {return kPlugCategEffect;} + +bool TapeDelay::getProductString(char* text) { + vst_strncpy (text, "airwindows TapeDelay", kVstMaxProductStrLen); return true; +} + +bool TapeDelay::getVendorString(char* text) { + vst_strncpy (text, "airwindows", kVstMaxVendorStrLen); return true; +} diff --git a/plugins/LinuxVST/src/TapeDelay/TapeDelay.h b/plugins/LinuxVST/src/TapeDelay/TapeDelay.h new file mode 100755 index 0000000..f5fcb6c --- /dev/null +++ b/plugins/LinuxVST/src/TapeDelay/TapeDelay.h @@ -0,0 +1,81 @@ +/* ======================================== + * TapeDelay - TapeDelay.h + * Created 8/12/11 by SPIAdmin + * Copyright (c) 2011 __MyCompanyName__, All rights reserved + * ======================================== */ + +#ifndef __TapeDelay_H +#define __TapeDelay_H + +#ifndef __audioeffect__ +#include "audioeffectx.h" +#endif + +#include <set> +#include <string> +#include <math.h> + +enum { + kParamA = 0, + kParamB = 1, + kParamC = 2, + kParamD = 3, + kParamE = 4, + kParamF = 5, + kNumParameters = 6 +}; // + +const int kNumPrograms = 0; +const int kNumInputs = 2; +const int kNumOutputs = 2; +const unsigned long kUniqueId = 'tpdl'; //Change this to what the AU identity is! + +class TapeDelay : + public AudioEffectX +{ +public: + TapeDelay(audioMasterCallback audioMaster); + ~TapeDelay(); + 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; + + int pL[258]; + int pR[258]; + double dL[44100]; + double dR[44100]; + int gcount; + int delay; + int maxdelay; + int chase; + + long double fpNShapeL; + long double fpNShapeR; + //default stuff + + float A; + float B; + float C; + float D; + float E; + float F; +}; + +#endif diff --git a/plugins/LinuxVST/src/TapeDelay/TapeDelayProc.cpp b/plugins/LinuxVST/src/TapeDelay/TapeDelayProc.cpp new file mode 100755 index 0000000..43fa743 --- /dev/null +++ b/plugins/LinuxVST/src/TapeDelay/TapeDelayProc.cpp @@ -0,0 +1,363 @@ +/* ======================================== + * TapeDelay - TapeDelay.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __TapeDelay_H +#include "TapeDelay.h" +#endif + +void TapeDelay::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) +{ + float* in1 = inputs[0]; + float* in2 = inputs[1]; + float* out1 = outputs[0]; + float* out2 = outputs[1]; + + double dry = pow(A,2); + double wet = pow(B,2); + int targetdelay = (int)(44000*C); + double feedback = (D*1.3); + double leanfat = ((E*2.0)-1.0); + double fatwet = fabs(leanfat); + int fatness = (int)floor((F*29.0)+3.0); + int count; + + double storedelayL; + double storedelayR; + double sumL = 0.0; + double sumR = 0.0; + double floattotalL = 0.0; + double floattotalR = 0.0; + int sumtotalL = 0; + int sumtotalR = 0; + + + while (--sampleFrames >= 0) + { + long double inputSampleL = *in1; + long double inputSampleR = *in2; + + static int noisesourceL = 0; + static int noisesourceR = 850010; + int residue; + double applyresidue; + + noisesourceL = noisesourceL % 1700021; noisesourceL++; + residue = noisesourceL * noisesourceL; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL += applyresidue; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + inputSampleL -= applyresidue; + } + + noisesourceR = noisesourceR % 1700021; noisesourceR++; + residue = noisesourceR * noisesourceR; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR += applyresidue; + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + inputSampleR -= applyresidue; + } + //for live air, we always apply the dither noise. Then, if our result is + //effectively digital black, we'll subtract it again. We want a 'air' hiss + + if (gcount < 0 || gcount > 128) {gcount = 128;} + count = gcount; + if (delay < 0 || delay > maxdelay) {delay = maxdelay;} + + sumL = inputSampleL + (dL[delay]*feedback); + sumR = inputSampleR + (dR[delay]*feedback); + pL[count+128] = pL[count] = sumtotalL = (int)(sumL*8388608.0); + pR[count+128] = pR[count] = sumtotalR = (int)(sumR*8388608.0); + + switch (fatness) + { + case 32: sumtotalL += pL[count+127]; sumtotalR += pR[count+127]; //note NO break statement. + case 31: sumtotalL += pL[count+113]; sumtotalR += pR[count+113]; //This jumps to the relevant tap + case 30: sumtotalL += pL[count+109]; sumtotalR += pR[count+109]; //and then includes all smaller taps. + case 29: sumtotalL += pL[count+107]; sumtotalR += pR[count+107]; + case 28: sumtotalL += pL[count+103]; sumtotalR += pR[count+103]; + case 27: sumtotalL += pL[count+101]; sumtotalR += pR[count+101]; + case 26: sumtotalL += pL[count+97]; sumtotalR += pR[count+97]; + case 25: sumtotalL += pL[count+89]; sumtotalR += pR[count+89]; + case 24: sumtotalL += pL[count+83]; sumtotalR += pR[count+83]; + case 23: sumtotalL += pL[count+79]; sumtotalR += pR[count+79]; + case 22: sumtotalL += pL[count+73]; sumtotalR += pR[count+73]; + case 21: sumtotalL += pL[count+71]; sumtotalR += pR[count+71]; + case 20: sumtotalL += pL[count+67]; sumtotalR += pR[count+67]; + case 19: sumtotalL += pL[count+61]; sumtotalR += pR[count+61]; + case 18: sumtotalL += pL[count+59]; sumtotalR += pR[count+59]; + case 17: sumtotalL += pL[count+53]; sumtotalR += pR[count+53]; + case 16: sumtotalL += pL[count+47]; sumtotalR += pR[count+47]; + case 15: sumtotalL += pL[count+43]; sumtotalR += pR[count+43]; + case 14: sumtotalL += pL[count+41]; sumtotalR += pR[count+41]; + case 13: sumtotalL += pL[count+37]; sumtotalR += pR[count+37]; + case 12: sumtotalL += pL[count+31]; sumtotalR += pR[count+31]; + case 11: sumtotalL += pL[count+29]; sumtotalR += pR[count+29]; + case 10: sumtotalL += pL[count+23]; sumtotalR += pR[count+23]; + case 9: sumtotalL += pL[count+19]; sumtotalR += pR[count+19]; + case 8: sumtotalL += pL[count+17]; sumtotalR += pR[count+17]; + case 7: sumtotalL += pL[count+13]; sumtotalR += pR[count+13]; + case 6: sumtotalL += pL[count+11]; sumtotalR += pR[count+11]; + case 5: sumtotalL += pL[count+7]; sumtotalR += pR[count+7]; + case 4: sumtotalL += pL[count+5]; sumtotalR += pR[count+5]; + case 3: sumtotalL += pL[count+3]; sumtotalR += pR[count+3]; + case 2: sumtotalL += pL[count+2]; sumtotalR += pR[count+2]; + case 1: sumtotalL += pL[count+1]; sumtotalR += pR[count+1]; + } + + floattotalL = (double)(sumtotalL/fatness+1); + floattotalR = (double)(sumtotalR/fatness+1); + floattotalL /= 8388608.0; + floattotalR /= 8388608.0; + floattotalL *= fatwet; + floattotalR *= fatwet; + if (leanfat < 0) {storedelayL = sumL-floattotalL; storedelayR = sumR-floattotalR;} + else {storedelayL = (sumL * (1-fatwet))+floattotalL; storedelayR = (sumR * (1-fatwet))+floattotalR;} + + chase += abs(maxdelay - targetdelay); + if (chase > 9000) + { + if (maxdelay > targetdelay) { + dL[delay] = storedelayL; dR[delay] = storedelayR; + maxdelay -= 1; delay -= 1; if (delay < 0) {delay = maxdelay;} + dL[delay] = storedelayL; dR[delay] = storedelayR; + } + if (maxdelay < targetdelay) { + maxdelay += 1; delay += 1; if (delay > maxdelay) {delay = 0;} + dL[delay] = storedelayL; dR[delay] = storedelayR; + } + chase = 0; + } + else + { + dL[delay] = storedelayL; dR[delay] = storedelayR; + } + + gcount--; + delay--; + if (delay < 0 || delay > maxdelay) {delay = maxdelay;} + //yes this is a second bounds check. it's cheap, check EVERY time + + inputSampleL = (inputSampleL * dry) + (dL[delay] * wet); + inputSampleR = (inputSampleR * dry) + (dR[delay] * wet); + + //noise shaping to 32-bit floating point + float fpTemp = inputSampleL; + fpNShapeL += (inputSampleL-fpTemp); + inputSampleL += fpNShapeL; + //if this confuses you look at the wordlength for fpTemp :) + fpTemp = inputSampleR; + fpNShapeR += (inputSampleR-fpTemp); + inputSampleR += fpNShapeR; + //for deeper space and warmth, we try a non-oscillating noise shaping + //that is kind of ruthless: it will forever retain the rounding errors + //except we'll dial it back a hair at the end of every buffer processed + //end noise shaping on 32 bit output + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } + fpNShapeL *= 0.999999; + fpNShapeR *= 0.999999; + //we will just delicately dial back the FP noise shaping, not even every sample + //this is a good place to put subtle 'no runaway' calculations, though bear in mind + //that it will be called more often when you use shorter sample buffers in the DAW. + //So, very low latency operation will call these calculations more often. +} + +void TapeDelay::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) +{ + double* in1 = inputs[0]; + double* in2 = inputs[1]; + double* out1 = outputs[0]; + double* out2 = outputs[1]; + + double dry = pow(A,2); + double wet = pow(B,2); + int targetdelay = (int)(44000*C); + double feedback = (D*1.3); + double leanfat = ((E*2.0)-1.0); + double fatwet = fabs(leanfat); + int fatness = (int)floor((F*29.0)+3.0); + int count; + + double storedelayL; + double storedelayR; + double sumL = 0.0; + double sumR = 0.0; + double floattotalL = 0.0; + double floattotalR = 0.0; + int sumtotalL = 0; + int sumtotalR = 0; + + while (--sampleFrames >= 0) + { + long double inputSampleL = *in1; + long double inputSampleR = *in2; + + static int noisesourceL = 0; + static int noisesourceR = 850010; + int residue; + double applyresidue; + + noisesourceL = noisesourceL % 1700021; noisesourceL++; + residue = noisesourceL * noisesourceL; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL += applyresidue; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + inputSampleL -= applyresidue; + } + + noisesourceR = noisesourceR % 1700021; noisesourceR++; + residue = noisesourceR * noisesourceR; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR += applyresidue; + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + inputSampleR -= applyresidue; + } + //for live air, we always apply the dither noise. Then, if our result is + //effectively digital black, we'll subtract it again. We want a 'air' hiss + + if (gcount < 0 || gcount > 128) {gcount = 128;} + count = gcount; + if (delay < 0 || delay > maxdelay) {delay = maxdelay;} + + sumL = inputSampleL + (dL[delay]*feedback); + sumR = inputSampleR + (dR[delay]*feedback); + pL[count+128] = pL[count] = sumtotalL = (int)(sumL*8388608.0); + pR[count+128] = pR[count] = sumtotalR = (int)(sumR*8388608.0); + + switch (fatness) + { + case 32: sumtotalL += pL[count+127]; sumtotalR += pR[count+127]; //note NO break statement. + case 31: sumtotalL += pL[count+113]; sumtotalR += pR[count+113]; //This jumps to the relevant tap + case 30: sumtotalL += pL[count+109]; sumtotalR += pR[count+109]; //and then includes all smaller taps. + case 29: sumtotalL += pL[count+107]; sumtotalR += pR[count+107]; + case 28: sumtotalL += pL[count+103]; sumtotalR += pR[count+103]; + case 27: sumtotalL += pL[count+101]; sumtotalR += pR[count+101]; + case 26: sumtotalL += pL[count+97]; sumtotalR += pR[count+97]; + case 25: sumtotalL += pL[count+89]; sumtotalR += pR[count+89]; + case 24: sumtotalL += pL[count+83]; sumtotalR += pR[count+83]; + case 23: sumtotalL += pL[count+79]; sumtotalR += pR[count+79]; + case 22: sumtotalL += pL[count+73]; sumtotalR += pR[count+73]; + case 21: sumtotalL += pL[count+71]; sumtotalR += pR[count+71]; + case 20: sumtotalL += pL[count+67]; sumtotalR += pR[count+67]; + case 19: sumtotalL += pL[count+61]; sumtotalR += pR[count+61]; + case 18: sumtotalL += pL[count+59]; sumtotalR += pR[count+59]; + case 17: sumtotalL += pL[count+53]; sumtotalR += pR[count+53]; + case 16: sumtotalL += pL[count+47]; sumtotalR += pR[count+47]; + case 15: sumtotalL += pL[count+43]; sumtotalR += pR[count+43]; + case 14: sumtotalL += pL[count+41]; sumtotalR += pR[count+41]; + case 13: sumtotalL += pL[count+37]; sumtotalR += pR[count+37]; + case 12: sumtotalL += pL[count+31]; sumtotalR += pR[count+31]; + case 11: sumtotalL += pL[count+29]; sumtotalR += pR[count+29]; + case 10: sumtotalL += pL[count+23]; sumtotalR += pR[count+23]; + case 9: sumtotalL += pL[count+19]; sumtotalR += pR[count+19]; + case 8: sumtotalL += pL[count+17]; sumtotalR += pR[count+17]; + case 7: sumtotalL += pL[count+13]; sumtotalR += pR[count+13]; + case 6: sumtotalL += pL[count+11]; sumtotalR += pR[count+11]; + case 5: sumtotalL += pL[count+7]; sumtotalR += pR[count+7]; + case 4: sumtotalL += pL[count+5]; sumtotalR += pR[count+5]; + case 3: sumtotalL += pL[count+3]; sumtotalR += pR[count+3]; + case 2: sumtotalL += pL[count+2]; sumtotalR += pR[count+2]; + case 1: sumtotalL += pL[count+1]; sumtotalR += pR[count+1]; + } + + floattotalL = (double)(sumtotalL/fatness+1); + floattotalR = (double)(sumtotalR/fatness+1); + floattotalL /= 8388608.0; + floattotalR /= 8388608.0; + floattotalL *= fatwet; + floattotalR *= fatwet; + if (leanfat < 0) {storedelayL = sumL-floattotalL; storedelayR = sumR-floattotalR;} + else {storedelayL = (sumL * (1-fatwet))+floattotalL; storedelayR = (sumR * (1-fatwet))+floattotalR;} + + chase += abs(maxdelay - targetdelay); + if (chase > 9000) + { + if (maxdelay > targetdelay) { + dL[delay] = storedelayL; dR[delay] = storedelayR; + maxdelay -= 1; delay -= 1; if (delay < 0) {delay = maxdelay;} + dL[delay] = storedelayL; dR[delay] = storedelayR; + } + if (maxdelay < targetdelay) { + maxdelay += 1; delay += 1; if (delay > maxdelay) {delay = 0;} + dL[delay] = storedelayL; dR[delay] = storedelayR; + } + chase = 0; + } + else + { + dL[delay] = storedelayL; dR[delay] = storedelayR; + } + + gcount--; + delay--; + if (delay < 0 || delay > maxdelay) {delay = maxdelay;} + //yes this is a second bounds check. it's cheap, check EVERY time + + inputSampleL = (inputSampleL * dry) + (dL[delay] * wet); + inputSampleR = (inputSampleR * dry) + (dR[delay] * wet); + + //noise shaping to 64-bit floating point + double fpTemp = inputSampleL; + fpNShapeL += (inputSampleL-fpTemp); + inputSampleL += fpNShapeL; + //if this confuses you look at the wordlength for fpTemp :) + fpTemp = inputSampleR; + fpNShapeR += (inputSampleR-fpTemp); + inputSampleR += fpNShapeR; + //for deeper space and warmth, we try a non-oscillating noise shaping + //that is kind of ruthless: it will forever retain the rounding errors + //except we'll dial it back a hair at the end of every buffer processed + //end noise shaping on 64 bit output + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } + fpNShapeL *= 0.999999; + fpNShapeR *= 0.999999; + //we will just delicately dial back the FP noise shaping, not even every sample + //this is a good place to put subtle 'no runaway' calculations, though bear in mind + //that it will be called more often when you use shorter sample buffers in the DAW. + //So, very low latency operation will call these calculations more often. +} |