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https://github.com/airwindows/airwindows.git
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Distortion
This commit is contained in:
Chris Johnson
parent
e8b75f51c1
commit
6303bd453c
44 changed files with 11431 additions and 0 deletions
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@ -71,6 +71,7 @@ add_airwindows_plugin(Desk4)
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add_airwindows_plugin(DigitalBlack)
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add_airwindows_plugin(Distance)
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add_airwindows_plugin(Distance2)
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add_airwindows_plugin(Distortion)
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add_airwindows_plugin(DoublePaul)
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add_airwindows_plugin(Ditherbox)
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add_airwindows_plugin(DitherFloat)
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154
plugins/LinuxVST/src/Distortion/Distortion.cpp
Executable file
154
plugins/LinuxVST/src/Distortion/Distortion.cpp
Executable file
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@ -0,0 +1,154 @@
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/* ========================================
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* Distortion - Distortion.h
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* Copyright (c) 2016 airwindows, All rights reserved
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* ======================================== */
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#ifndef __Distortion_H
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#include "Distortion.h"
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#endif
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AudioEffect* createEffectInstance(audioMasterCallback audioMaster) {return new Distortion(audioMaster);}
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Distortion::Distortion(audioMasterCallback audioMaster) :
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AudioEffectX(audioMaster, kNumPrograms, kNumParameters)
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{
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A = 0.5;
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B = 0.5;
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C = 0.5;
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D = 1.0;
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for (int x = 0; x < 9; x++) {
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previousInL[x] = 0.0; previousOutL[x] = 0.0;
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previousInR[x] = 0.0; previousOutR[x] = 0.0;
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}
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fpd = 17;
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//this is reset: values being initialized only once. Startup values, whatever they are.
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_canDo.insert("plugAsChannelInsert"); // plug-in can be used as a channel insert effect.
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_canDo.insert("plugAsSend"); // plug-in can be used as a send effect.
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_canDo.insert("x2in2out");
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setNumInputs(kNumInputs);
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setNumOutputs(kNumOutputs);
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setUniqueID(kUniqueId);
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canProcessReplacing(); // supports output replacing
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canDoubleReplacing(); // supports double precision processing
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programsAreChunks(true);
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vst_strncpy (_programName, "Default", kVstMaxProgNameLen); // default program name
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}
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Distortion::~Distortion() {}
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VstInt32 Distortion::getVendorVersion () {return 1000;}
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void Distortion::setProgramName(char *name) {vst_strncpy (_programName, name, kVstMaxProgNameLen);}
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void Distortion::getProgramName(char *name) {vst_strncpy (name, _programName, kVstMaxProgNameLen);}
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//airwindows likes to ignore this stuff. Make your own programs, and make a different plugin rather than
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//trying to do versioning and preventing people from using older versions. Maybe they like the old one!
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static float pinParameter(float data)
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{
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if (data < 0.0f) return 0.0f;
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if (data > 1.0f) return 1.0f;
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return data;
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}
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VstInt32 Distortion::getChunk (void** data, bool isPreset)
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{
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float *chunkData = (float *)calloc(kNumParameters, sizeof(float));
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chunkData[0] = A;
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chunkData[1] = B;
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chunkData[2] = C;
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chunkData[3] = D;
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/* Note: The way this is set up, it will break if you manage to save settings on an Intel
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machine and load them on a PPC Mac. However, it's fine if you stick to the machine you
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started with. */
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*data = chunkData;
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return kNumParameters * sizeof(float);
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}
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VstInt32 Distortion::setChunk (void* data, VstInt32 byteSize, bool isPreset)
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{
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float *chunkData = (float *)data;
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A = pinParameter(chunkData[0]);
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B = pinParameter(chunkData[1]);
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C = pinParameter(chunkData[2]);
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D = pinParameter(chunkData[3]);
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/* We're ignoring byteSize as we found it to be a filthy liar */
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/* calculate any other fields you need here - you could copy in
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code from setParameter() here. */
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return 0;
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}
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void Distortion::setParameter(VstInt32 index, float value) {
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switch (index) {
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case kParamA: A = value; break;
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case kParamB: B = value; break;
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case kParamC: C = value; break;
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case kParamD: D = value; break;
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default: throw; // unknown parameter, shouldn't happen!
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}
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}
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float Distortion::getParameter(VstInt32 index) {
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switch (index) {
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case kParamA: return A; break;
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case kParamB: return B; break;
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case kParamC: return C; break;
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case kParamD: return D; break;
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default: break; // unknown parameter, shouldn't happen!
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} return 0.0; //we only need to update the relevant name, this is simple to manage
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}
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void Distortion::getParameterName(VstInt32 index, char *text) {
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switch (index) {
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case kParamA: vst_strncpy (text, "Input", kVstMaxParamStrLen); break;
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case kParamB: vst_strncpy (text, "Mode", kVstMaxParamStrLen); break;
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case kParamC: vst_strncpy (text, "Output", kVstMaxParamStrLen); break;
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case kParamD: vst_strncpy (text, "Dry/Wet", kVstMaxParamStrLen); break;
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default: break; // unknown parameter, shouldn't happen!
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} //this is our labels for displaying in the VST host
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}
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void Distortion::getParameterDisplay(VstInt32 index, char *text) {
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switch (index) {
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case kParamA: float2string ((A-0.5)*24.0, text, kVstMaxParamStrLen); break;
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case kParamB: switch((VstInt32)( B * 4.999 )) //0 to almost edge of # of params
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{
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case 0: vst_strncpy (text, "Density", kVstMaxParamStrLen); break;
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case 1: vst_strncpy (text, "Drive", kVstMaxParamStrLen); break;
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case 2: vst_strncpy (text, "Spiral", kVstMaxParamStrLen); break;
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case 3: vst_strncpy (text, "Mojo", kVstMaxParamStrLen); break;
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case 4: vst_strncpy (text, "Dyno", kVstMaxParamStrLen); break;
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default: break; // unknown parameter, shouldn't happen!
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} break;
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case kParamC: float2string ((C-0.5)*24.0, text, kVstMaxParamStrLen); break;
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case kParamD: float2string (D, text, kVstMaxParamStrLen); break;
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default: break; // unknown parameter, shouldn't happen!
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} //this displays the values and handles 'popups' where it's discrete choices
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}
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void Distortion::getParameterLabel(VstInt32 index, char *text) {
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switch (index) {
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case kParamA: vst_strncpy (text, "dB", kVstMaxParamStrLen); break;
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case kParamB: vst_strncpy (text, "", kVstMaxParamStrLen); break;
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case kParamC: vst_strncpy (text, "dB", kVstMaxParamStrLen); break;
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case kParamD: vst_strncpy (text, "", kVstMaxParamStrLen); break;
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default: break; // unknown parameter, shouldn't happen!
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}
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}
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VstInt32 Distortion::canDo(char *text)
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{ return (_canDo.find(text) == _canDo.end()) ? -1: 1; } // 1 = yes, -1 = no, 0 = don't know
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bool Distortion::getEffectName(char* name) {
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vst_strncpy(name, "Distortion", kVstMaxProductStrLen); return true;
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}
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VstPlugCategory Distortion::getPlugCategory() {return kPlugCategEffect;}
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bool Distortion::getProductString(char* text) {
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vst_strncpy (text, "airwindows Distortion", kVstMaxProductStrLen); return true;
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}
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bool Distortion::getVendorString(char* text) {
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vst_strncpy (text, "airwindows", kVstMaxVendorStrLen); return true;
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}
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72
plugins/LinuxVST/src/Distortion/Distortion.h
Executable file
72
plugins/LinuxVST/src/Distortion/Distortion.h
Executable file
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@ -0,0 +1,72 @@
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/* ========================================
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* Distortion - Distortion.h
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* Created 8/12/11 by SPIAdmin
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* Copyright (c) 2011 __MyCompanyName__, All rights reserved
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* ======================================== */
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#ifndef __Distortion_H
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#define __Distortion_H
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#ifndef __audioeffect__
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#include "audioeffectx.h"
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#endif
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#include <set>
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#include <string>
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#include <math.h>
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enum {
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kParamA = 0,
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kParamB = 1,
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kParamC = 2,
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kParamD = 3,
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kNumParameters = 4
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}; //
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const int kNumPrograms = 0;
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const int kNumInputs = 2;
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const int kNumOutputs = 2;
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const unsigned long kUniqueId = 'dstr'; //Change this to what the AU identity is!
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class Distortion :
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public AudioEffectX
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{
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public:
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Distortion(audioMasterCallback audioMaster);
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~Distortion();
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virtual bool getEffectName(char* name); // The plug-in name
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virtual VstPlugCategory getPlugCategory(); // The general category for the plug-in
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virtual bool getProductString(char* text); // This is a unique plug-in string provided by Steinberg
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virtual bool getVendorString(char* text); // Vendor info
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virtual VstInt32 getVendorVersion(); // Version number
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virtual void processReplacing (float** inputs, float** outputs, VstInt32 sampleFrames);
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virtual void processDoubleReplacing (double** inputs, double** outputs, VstInt32 sampleFrames);
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virtual void getProgramName(char *name); // read the name from the host
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virtual void setProgramName(char *name); // changes the name of the preset displayed in the host
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virtual VstInt32 getChunk (void** data, bool isPreset);
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virtual VstInt32 setChunk (void* data, VstInt32 byteSize, bool isPreset);
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virtual float getParameter(VstInt32 index); // get the parameter value at the specified index
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virtual void setParameter(VstInt32 index, float value); // set the parameter at index to value
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virtual void getParameterLabel(VstInt32 index, char *text); // label for the parameter (eg dB)
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virtual void getParameterName(VstInt32 index, char *text); // name of the parameter
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virtual void getParameterDisplay(VstInt32 index, char *text); // text description of the current value
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virtual VstInt32 canDo(char *text);
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private:
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char _programName[kVstMaxProgNameLen + 1];
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std::set< std::string > _canDo;
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long double previousInL[9];
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long double previousOutL[9];
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long double previousInR[9];
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long double previousOutR[9];
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uint32_t fpd;
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//default stuff
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float A;
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float B;
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float C;
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float D;
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};
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#endif
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250
plugins/LinuxVST/src/Distortion/DistortionProc.cpp
Executable file
250
plugins/LinuxVST/src/Distortion/DistortionProc.cpp
Executable file
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@ -0,0 +1,250 @@
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/* ========================================
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* Distortion - Distortion.h
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* Copyright (c) 2016 airwindows, All rights reserved
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* ======================================== */
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#ifndef __Distortion_H
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#include "Distortion.h"
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#endif
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void Distortion::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
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{
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float* in1 = inputs[0];
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float* in2 = inputs[1];
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float* out1 = outputs[0];
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float* out2 = outputs[1];
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int stages = (int)floor(getSampleRate()/25000.0);
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if (stages > 8) stages = 8;
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double input = pow(10.0,((A-0.5)*24.0)/20.0);
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int mode = (int) ( B * 4.999 );
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double output = pow(10.0,((C-0.5)*24.0)/20.0);
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double wet = D;
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while (--sampleFrames >= 0)
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{
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long double inputSampleL = *in1;
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long double inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpd * 1.18e-37;
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if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpd * 1.18e-37;
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long double drySampleL = inputSampleL;
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long double drySampleR = inputSampleR;
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inputSampleL *= input;
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inputSampleR *= input;
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for (int x = 0; x < stages; x++) {
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long double temp;
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temp = (inputSampleL+previousInL[x])*0.5;
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previousInL[x] = inputSampleL;
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inputSampleL = temp;
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temp = (inputSampleR+previousInR[x])*0.5;
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previousInR[x] = inputSampleR;
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inputSampleR = temp;
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}
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switch (mode)
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{
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case 0: //Density
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if (inputSampleL > 1.570796326794897) inputSampleL = 1.570796326794897;
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if (inputSampleL < -1.570796326794897) inputSampleL = -1.570796326794897;
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if (inputSampleR > 1.570796326794897) inputSampleR = 1.570796326794897;
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if (inputSampleR < -1.570796326794897) inputSampleR = -1.570796326794897;
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//clip to 1.570796326794897 to reach maximum output
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inputSampleL = sin(inputSampleL);
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inputSampleR = sin(inputSampleR);
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break;
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case 1: //Drive
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if (inputSampleL > 1.0) inputSampleL = 1.0;
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if (inputSampleL < -1.0) inputSampleL = -1.0;
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if (inputSampleR > 1.0) inputSampleR = 1.0;
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if (inputSampleR < -1.0) inputSampleR = -1.0;
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inputSampleL -= (inputSampleL * (fabs(inputSampleL) * 0.6) * (fabs(inputSampleL) * 0.6));
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inputSampleR -= (inputSampleR * (fabs(inputSampleR) * 0.6) * (fabs(inputSampleR) * 0.6));
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inputSampleL *= 1.5;
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inputSampleR *= 1.5;
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break;
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case 2: //Spiral
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if (inputSampleL > 1.2533141373155) inputSampleL = 1.2533141373155;
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if (inputSampleL < -1.2533141373155) inputSampleL = -1.2533141373155;
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if (inputSampleR > 1.2533141373155) inputSampleR = 1.2533141373155;
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if (inputSampleR < -1.2533141373155) inputSampleR = -1.2533141373155;
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//clip to 1.2533141373155 to reach maximum output
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inputSampleL = sin(inputSampleL * fabs(inputSampleL)) / ((inputSampleL == 0.0) ?1:fabs(inputSampleL));
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inputSampleR = sin(inputSampleR * fabs(inputSampleR)) / ((inputSampleR == 0.0) ?1:fabs(inputSampleR));
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break;
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case 3: //Mojo
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long double mojo; mojo = pow(fabs(inputSampleL),0.25);
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if (mojo > 0.0) inputSampleL = (sin(inputSampleL * mojo * M_PI * 0.5) / mojo) * 0.987654321;
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mojo = pow(fabs(inputSampleR),0.25);
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if (mojo > 0.0) inputSampleR = (sin(inputSampleR * mojo * M_PI * 0.5) / mojo) * 0.987654321;
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//mojo is the one that flattens WAAAAY out very softly before wavefolding
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break;
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case 4: //Dyno
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long double dyno; dyno = pow(fabs(inputSampleL),4);
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if (dyno > 0.0) inputSampleL = (sin(inputSampleL * dyno) / dyno) * 1.1654321;
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dyno = pow(fabs(inputSampleR),4);
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if (dyno > 0.0) inputSampleR = (sin(inputSampleR * dyno) / dyno) * 1.1654321;
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//dyno is the one that tries to raise peak energy
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break;
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}
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for (int x = 1; x < (stages/2); x++) {
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long double temp;
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temp = (inputSampleL+previousOutL[x])*0.5;
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previousOutL[x] = inputSampleL;
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inputSampleL = temp;
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temp = (inputSampleR+previousOutR[x])*0.5;
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previousOutR[x] = inputSampleR;
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inputSampleR = temp;
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}
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if (output != 1.0) {
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inputSampleL *= output;
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inputSampleR *= output;
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}
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if (wet !=1.0) {
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inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet));
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inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet));
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}
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//begin 32 bit stereo floating point dither
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int expon; frexpf((float)inputSampleL, &expon);
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fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
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inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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frexpf((float)inputSampleR, &expon);
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fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
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inputSampleR += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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//end 32 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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*in1++;
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*in2++;
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*out1++;
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*out2++;
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}
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}
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void Distortion::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
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{
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double* in1 = inputs[0];
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double* in2 = inputs[1];
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double* out1 = outputs[0];
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double* out2 = outputs[1];
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int stages = (int)floor(getSampleRate()/25000.0);
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if (stages > 8) stages = 8;
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double input = pow(10.0,((A-0.5)*24.0)/20.0);
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int mode = (int) ( B * 4.999 );
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double output = pow(10.0,((C-0.5)*24.0)/20.0);
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double wet = D;
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while (--sampleFrames >= 0)
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{
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long double inputSampleL = *in1;
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long double inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpd * 1.18e-37;
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if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpd * 1.18e-37;
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long double drySampleL = inputSampleL;
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long double drySampleR = inputSampleR;
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inputSampleL *= input;
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inputSampleR *= input;
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for (int x = 0; x < stages; x++) {
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long double temp;
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temp = (inputSampleL+previousInL[x])*0.5;
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||||
previousInL[x] = inputSampleL;
|
||||
inputSampleL = temp;
|
||||
temp = (inputSampleR+previousInR[x])*0.5;
|
||||
previousInR[x] = inputSampleR;
|
||||
inputSampleR = temp;
|
||||
}
|
||||
|
||||
switch (mode)
|
||||
{
|
||||
case 0: //Density
|
||||
if (inputSampleL > 1.570796326794897) inputSampleL = 1.570796326794897;
|
||||
if (inputSampleL < -1.570796326794897) inputSampleL = -1.570796326794897;
|
||||
if (inputSampleR > 1.570796326794897) inputSampleR = 1.570796326794897;
|
||||
if (inputSampleR < -1.570796326794897) inputSampleR = -1.570796326794897;
|
||||
//clip to 1.570796326794897 to reach maximum output
|
||||
inputSampleL = sin(inputSampleL);
|
||||
inputSampleR = sin(inputSampleR);
|
||||
break;
|
||||
case 1: //Drive
|
||||
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;
|
||||
inputSampleL -= (inputSampleL * (fabs(inputSampleL) * 0.6) * (fabs(inputSampleL) * 0.6));
|
||||
inputSampleR -= (inputSampleR * (fabs(inputSampleR) * 0.6) * (fabs(inputSampleR) * 0.6));
|
||||
inputSampleL *= 1.5;
|
||||
inputSampleR *= 1.5;
|
||||
break;
|
||||
case 2: //Spiral
|
||||
if (inputSampleL > 1.2533141373155) inputSampleL = 1.2533141373155;
|
||||
if (inputSampleL < -1.2533141373155) inputSampleL = -1.2533141373155;
|
||||
if (inputSampleR > 1.2533141373155) inputSampleR = 1.2533141373155;
|
||||
if (inputSampleR < -1.2533141373155) inputSampleR = -1.2533141373155;
|
||||
//clip to 1.2533141373155 to reach maximum output
|
||||
inputSampleL = sin(inputSampleL * fabs(inputSampleL)) / ((inputSampleL == 0.0) ?1:fabs(inputSampleL));
|
||||
inputSampleR = sin(inputSampleR * fabs(inputSampleR)) / ((inputSampleR == 0.0) ?1:fabs(inputSampleR));
|
||||
break;
|
||||
case 3: //Mojo
|
||||
long double mojo; mojo = pow(fabs(inputSampleL),0.25);
|
||||
if (mojo > 0.0) inputSampleL = (sin(inputSampleL * mojo * M_PI * 0.5) / mojo) * 0.987654321;
|
||||
mojo = pow(fabs(inputSampleR),0.25);
|
||||
if (mojo > 0.0) inputSampleR = (sin(inputSampleR * mojo * M_PI * 0.5) / mojo) * 0.987654321;
|
||||
//mojo is the one that flattens WAAAAY out very softly before wavefolding
|
||||
break;
|
||||
case 4: //Dyno
|
||||
long double dyno; dyno = pow(fabs(inputSampleL),4);
|
||||
if (dyno > 0.0) inputSampleL = (sin(inputSampleL * dyno) / dyno) * 1.1654321;
|
||||
dyno = pow(fabs(inputSampleR),4);
|
||||
if (dyno > 0.0) inputSampleR = (sin(inputSampleR * dyno) / dyno) * 1.1654321;
|
||||
//dyno is the one that tries to raise peak energy
|
||||
break;
|
||||
}
|
||||
|
||||
for (int x = 1; x < (stages/2); x++) {
|
||||
long double temp;
|
||||
temp = (inputSampleL+previousOutL[x])*0.5;
|
||||
previousOutL[x] = inputSampleL;
|
||||
inputSampleL = temp;
|
||||
temp = (inputSampleR+previousOutR[x])*0.5;
|
||||
previousOutR[x] = inputSampleR;
|
||||
inputSampleR = temp;
|
||||
}
|
||||
|
||||
if (output != 1.0) {
|
||||
inputSampleL *= output;
|
||||
inputSampleR *= output;
|
||||
}
|
||||
|
||||
if (wet !=1.0) {
|
||||
inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet));
|
||||
inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet));
|
||||
}
|
||||
|
||||
//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++;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue