Merge pull request #1 from jnonis/arp

Merge Arp branch to FX branch

src/Makefile

@@ -9,15 +9,18 @@ CMSIS_DIR = ../CMSIS_5/CMSIS
 OBJS = main.o kernel.o minidexed.o config.o userinterface.o uimenu.o \
        mididevice.o midikeyboard.o serialmididevice.o pckeyboard.o \
        sysexfileloader.o performanceconfig.o perftimer.o \
-       effect_base.o effect_chorus.o effect_delay.o \
+       effect_base.o effect_chorus.o effect_delay.o effect_mverb.o \
        effect_talreverb3.o effect_ds1.o effect_bigmuff.o \
        moddistortion/Distortion_DS1.o moddistortion/Distortion_BigMuff.o \
        moddistortion/HyperbolicTables.o moddistortion/OverSample.o \
-       effect_compressor.o effect_platervbstereo.o uibuttons.o midipin.o
+       effect_compressor.o effect_platervbstereo.o uibuttons.o midipin.o \
+       midi_arp.o modarpeggiator/common/clock.o \
+       modarpeggiator/common/midiHandler.o modarpeggiator/common/pattern.o \
+       modarpeggiator/utils.o modarpeggiator/arpeggiator.o
 
 OPTIMIZE = -O3
 
 include ./Synth_Dexed.mk
 include ./Rules.mk
 
-EXTRACLEAN += moddistortion/*.[od]
+EXTRACLEAN += moddistortion/*.[od] modarpeggiator/*.[od] modarpeggiator/common/*.[od]

src/effect_3bandeq.h

@@ -0,0 +1,176 @@
+/* 
+ * DISTHRO 3 Band EQ
+ * Ported from https://github.com/DISTRHO/Mini-Series/blob/master/plugins/3BandEQ
+ *  
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
+#ifndef _EFFECT_3BANDEQ_H
+#define _EFFECT_3BANDEQ_H
+
+#include <cmath>
+#include "effect_base.h"
+
+class AudioEffect3BandEQ : public AudioEffect
+{
+public:
+    static constexpr float kAMP_DB = 8.656170245f;
+    static constexpr float kDC_ADD = 1e-30f;
+    static constexpr float kPI     = 3.141592654f;
+    
+    enum Param
+    {
+        BYPASS,
+        EQ_LOW,
+        EQ_MID,
+        EQ_HIGH,
+        MASTER,
+        LOW_MID_FQ,
+        MID_HIGH_FQ,
+        UNKNOWN
+    };
+
+    AudioEffect3BandEQ(float32_t samplerate) : AudioEffect(samplerate)
+    {
+        // Default values
+        fLow = 0.0f;
+        fMid = 0.0f;
+        fHigh = 0.0f;
+        fMaster = 0.0f;
+        fLowMidFreq = 440.0f;
+        fMidHighFreq = 2000.0f;
+
+        // Internal stuff
+        lowVol = midVol = highVol = outVol = 1.0f;
+        freqLP = 200.0f;
+        freqHP = 2000.0f;
+
+        // reset filter values
+        xLP  = std::exp(-2.0f * kPI * freqLP / samplerate);
+
+        a0LP = 1.0f - xLP;
+        b1LP = -xLP;
+
+        xHP  = std::exp(-2.0f * kPI * freqHP / samplerate);
+        a0HP = 1.0f - xHP;
+        b1HP = -xHP;
+        
+        out1LP = out2LP = out1HP = out2HP = 0.0f;
+        tmp1LP = tmp2LP = tmp1HP = tmp2HP = 0.0f;
+    }
+
+    virtual ~AudioEffect3BandEQ()
+    {
+    }
+
+    virtual unsigned getId()
+    {
+        return EFFECT_3BANDEQ;
+    }
+
+    virtual void setParameter(unsigned param, unsigned value)
+    {
+        switch (param)
+        {
+        case AudioEffect3BandEQ::Param::BYPASS:
+            this->setBypass(value == 1);
+            break;
+        case AudioEffect3BandEQ::Param::EQ_LOW:
+            fLow = (value / 100.0f) * 48.0f - 24.0f;
+            lowVol = std::exp( (fLow/48.0f) * 48.0f / kAMP_DB);
+            break;
+        case AudioEffect3BandEQ::Param::EQ_MID:
+            fMid = (value / 100.0f) * 48.0f - 24.0f;
+            midVol = std::exp( (fMid/48.0f) * 48.0f / kAMP_DB);
+            break;
+        case AudioEffect3BandEQ::Param::EQ_HIGH:
+            fHigh = (value / 100.0f) * 48.0f - 24.0f;
+            highVol = std::exp( (fHigh/48.0f) * 48.0f / kAMP_DB);
+            break;
+        case AudioEffect3BandEQ::Param::MASTER:
+            fMaster = (value / 100.0f) * 48.0f - 24.0f;
+            outVol = std::exp( (fMaster/48.0f) * 48.0f / kAMP_DB);
+            break;
+        case AudioEffect3BandEQ::Param::LOW_MID_FQ:
+            fLowMidFreq = std::min((float) value, fMidHighFreq);
+            freqLP = fLowMidFreq;
+            xLP  = std::exp(-2.0f * kPI * freqLP / (float)samplerate);
+            a0LP = 1.0f - xLP;
+            b1LP = -xLP;
+            break;
+        case AudioEffect3BandEQ::Param::MID_HIGH_FQ:
+            fMidHighFreq = std::max((float) value, fLowMidFreq);
+            freqHP = fMidHighFreq;
+            xHP  = std::exp(-2.0f * kPI * freqHP / (float)samplerate);
+            a0HP = 1.0f - xHP;
+            b1HP = -xHP;
+            break;
+        default:
+            break;
+        }
+    }
+
+    virtual unsigned getParameter(unsigned param)
+    {
+        switch (param)
+        {
+        case AudioEffect3BandEQ::Param::BYPASS:
+            return this->getBypass() ? 1 : 0;
+        case AudioEffect3BandEQ::Param::EQ_LOW:
+            return roundf(((fLow + 24.0f) / 48.0f) * 100.0f);
+        case AudioEffect3BandEQ::Param::EQ_MID:
+            return roundf(((fMid + 24.0f) / 48.0f) * 100.0f);
+        case AudioEffect3BandEQ::Param::EQ_HIGH:
+            return roundf(((fHigh + 24.0f) / 48.0f) * 100.0f);
+        case AudioEffect3BandEQ::Param::MASTER:
+            return roundf(((fMaster + 24.0f) / 48.0f) * 100.0f);
+        case AudioEffect3BandEQ::Param::LOW_MID_FQ:
+            return fLowMidFreq;
+        case AudioEffect3BandEQ::Param::MID_HIGH_FQ:
+            return fMidHighFreq;
+        default:
+            return 0;
+        }
+    }
+
+protected:
+    virtual size_t getParametersSize()
+    {
+        return AudioEffect3BandEQ::Param::UNKNOWN;
+    }
+    virtual void doProcess(const float32_t* inblockL, const float32_t* inblockR, float32_t* outblockL, float32_t* outblockR, uint16_t len)
+    {
+        const float* in1 = inblockL;
+        const float* in2 = inblockR;
+        float* out1 = outblockL;
+        float* out2 = outblockR;
+
+        for (uint32_t i=0; i < len; ++i)
+        {
+            tmp1LP = a0LP * in1[i] - b1LP * tmp1LP + kDC_ADD;
+            tmp2LP = a0LP * in2[i] - b1LP * tmp2LP + kDC_ADD;
+            out1LP = tmp1LP - kDC_ADD;
+            out2LP = tmp2LP - kDC_ADD;
+
+            tmp1HP = a0HP * in1[i] - b1HP * tmp1HP + kDC_ADD;
+            tmp2HP = a0HP * in2[i] - b1HP * tmp2HP + kDC_ADD;
+            out1HP = in1[i] - tmp1HP - kDC_ADD;
+            out2HP = in2[i] - tmp2HP - kDC_ADD;
+
+            out1[i] = (out1LP*lowVol + (in1[i] - out1LP - out1HP)*midVol + out1HP*highVol) * outVol;
+            out2[i] = (out2LP*lowVol + (in2[i] - out2LP - out2HP)*midVol + out2HP*highVol) * outVol;
+        }
+    }
+private:
+    float fLow, fMid, fHigh, fMaster, fLowMidFreq, fMidHighFreq;
+
+    float lowVol, midVol, highVol, outVol;
+    float freqLP, freqHP;
+
+    float xLP, a0LP, b1LP;
+    float xHP, a0HP, b1HP;
+
+    float out1LP, out2LP, out1HP, out2HP;
+    float tmp1LP, tmp2LP, tmp1HP, tmp2HP;
+};
+
+#endif // _EFFECT_3BANDEQ_H

src/effect_base.h

@@ -16,6 +16,8 @@
 #define EFFECT_BIGMUFF 5
 #define EFFECT_TALREVERB3 6
 #define EFFECT_REVERB 7
+#define EFFECT_MVERB 8
+#define EFFECT_3BANDEQ 9
 
 class AudioEffect
 {

src/effect_mverb.cpp

@@ -0,0 +1,116 @@
+/* 
+ * MVerb Reverb Port
+ * Ported from https://github.com/DISTRHO/MVerb
+ * Original https://github.com/martineastwood/mverb/
+ *
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
+#include "effect_mverb.h"
+
+AudioEffectMVerb::AudioEffectMVerb(float32_t samplerate) : AudioEffect(samplerate)
+{   
+    fVerb.setSampleRate(samplerate);
+
+    fVerb.setParameter(MVerb<float>::DAMPINGFREQ, 0.5f);
+    fVerb.setParameter(MVerb<float>::DENSITY, 0.5f);
+    fVerb.setParameter(MVerb<float>::BANDWIDTHFREQ, 0.5f);
+    fVerb.setParameter(MVerb<float>::DECAY, 0.5f);
+    fVerb.setParameter(MVerb<float>::PREDELAY, 0.5f);
+    fVerb.setParameter(MVerb<float>::SIZE, 0.75f);
+    fVerb.setParameter(MVerb<float>::GAIN, 1.0f);
+    fVerb.setParameter(MVerb<float>::MIX, 0.5f);
+    fVerb.setParameter(MVerb<float>::EARLYMIX, 0.5f);
+    fVerb.reset();
+}
+
+AudioEffectMVerb::~AudioEffectMVerb()
+{
+}
+
+void AudioEffectMVerb::initializeSendFX()
+{
+    this->setParameter(AudioEffectMVerb::Param::MIX, 100);
+}
+
+void AudioEffectMVerb::setParameter(unsigned param, unsigned value)
+{
+    switch (param)
+    {
+    case AudioEffectMVerb::Param::BYPASS:
+        this->setBypass(value == 1);
+        break;
+    case AudioEffectMVerb::Param::DAMPINGFREQ:
+        fVerb.setParameter(MVerb<float>::DAMPINGFREQ, (float) value / 100.0f);
+        break;
+    case AudioEffectMVerb::Param::DENSITY:
+        fVerb.setParameter(MVerb<float>::DENSITY, (float) value / 100.0f);
+        break;
+    case AudioEffectMVerb::Param::BANDWIDTHFREQ:
+        fVerb.setParameter(MVerb<float>::BANDWIDTHFREQ, (float) value / 100.0f);
+        break;
+    case AudioEffectMVerb::Param::DECAY:
+        fVerb.setParameter(MVerb<float>::DECAY, (float) value / 100.0f);
+        break;
+    case AudioEffectMVerb::Param::PREDELAY:
+        fVerb.setParameter(MVerb<float>::PREDELAY, (float) value / 100.0f);
+        break;
+    case AudioEffectMVerb::Param::SIZE:
+        fVerb.setParameter(MVerb<float>::SIZE, (float) value / 100.0f);
+        break;
+    case AudioEffectMVerb::Param::GAIN:
+        fVerb.setParameter(MVerb<float>::GAIN, (float) value / 100.0f);
+        break;
+    case AudioEffectMVerb::Param::MIX:
+        fVerb.setParameter(MVerb<float>::MIX, (float) value / 100.0f);
+        break;
+    case AudioEffectMVerb::Param::EARLYMIX:
+        fVerb.setParameter(MVerb<float>::EARLYMIX, (float) value / 100.0f);
+        break;
+    default:
+        break;
+    }
+}
+
+unsigned AudioEffectMVerb::getParameter(unsigned param)
+{
+    switch (param)
+    {
+    case AudioEffectMVerb::Param::BYPASS:
+		return this->getBypass() ? 1 : 0;
+    case AudioEffectMVerb::Param::DAMPINGFREQ:
+        return roundf(fVerb.getParameter(MVerb<float>::DAMPINGFREQ) * 100);
+    case AudioEffectMVerb::Param::DENSITY:
+        return roundf(fVerb.getParameter(MVerb<float>::DENSITY) * 100);
+    case AudioEffectMVerb::Param::BANDWIDTHFREQ:
+        return roundf(fVerb.getParameter(MVerb<float>::BANDWIDTHFREQ) * 100);
+    case AudioEffectMVerb::Param::DECAY:
+        return roundf(fVerb.getParameter(MVerb<float>::DECAY) * 100);
+    case AudioEffectMVerb::Param::PREDELAY:
+        return roundf(fVerb.getParameter(MVerb<float>::PREDELAY) * 100);
+    case AudioEffectMVerb::Param::SIZE:
+        return roundf(fVerb.getParameter(MVerb<float>::SIZE) * 100);
+    case AudioEffectMVerb::Param::GAIN:
+        return roundf(fVerb.getParameter(MVerb<float>::GAIN) * 100);
+    case AudioEffectMVerb::Param::MIX:
+        return roundf(fVerb.getParameter(MVerb<float>::MIX) * 100);
+    case AudioEffectMVerb::Param::EARLYMIX:
+        return roundf(fVerb.getParameter(MVerb<float>::EARLYMIX) * 100);
+    default:
+        return 0;
+    }
+}
+
+
+void AudioEffectMVerb::doProcess(const float32_t* inblockL, const float32_t* inblockR, float32_t* outblockL, float32_t* outblockR, uint16_t len)
+{
+    const float32_t* inputs[2];
+    inputs[0] = inblockL;
+    inputs[1] = inblockR;
+
+    float32_t* outputs[2];
+    outputs[0] = outblockL;
+    outputs[1] = outblockR;
+
+    fVerb.process(inputs, outputs, static_cast<int>(len));
+}
+

src/effect_mverb.h

@@ -0,0 +1,54 @@
+/* 
+ * MVerb Reverb Port
+ * Ported from https://github.com/DISTRHO/MVerb
+ * Original https://github.com/martineastwood/mverb/
+ *
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
+#ifndef _EFFECT_MVERB_H
+#define _EFFECT_MVERB_H
+
+#include "effect_base.h"
+#include "mverb/MVerb.h"
+
+class AudioEffectMVerb : public AudioEffect
+{
+public:
+    enum Param
+    {
+        BYPASS,
+        DAMPINGFREQ,
+        DENSITY,
+        BANDWIDTHFREQ,
+        DECAY,
+        PREDELAY,
+        SIZE,
+        GAIN,
+        MIX,
+        EARLYMIX,
+        UNKNOWN
+    };
+
+    AudioEffectMVerb(float32_t samplerate);
+    virtual ~AudioEffectMVerb();
+
+    virtual unsigned getId()
+    {
+        return EFFECT_MVERB;
+    }
+
+    virtual void initializeSendFX();
+    virtual void setParameter(unsigned param, unsigned value);
+    virtual unsigned getParameter(unsigned param);
+protected:
+    virtual size_t getParametersSize()
+    {
+        return AudioEffectMVerb::Param::UNKNOWN;
+    }
+    virtual void doProcess(const float32_t* inblockL, const float32_t* inblockR, float32_t* outblockL, float32_t* outblockR, uint16_t len);
+
+private:
+    MVerb<float> fVerb;
+};
+
+#endif // _EFFECT_MVERB_H

src/effect_talreverb3.cpp

@@ -1,7 +1,8 @@
 /* 
  * Tal Reverb 3 Port
  * Ported from https://github.com/DISTRHO/DISTRHO-Ports/tree/master/ports-juce5/tal-reverb-3
- *  
+ * Original https://tal-software.com/
+ * 
  * Javier Nonis (https://github.com/jnonis) - 2024
  */
 #include <circle/logger.h>

src/effect_talreverb3.h

@@ -1,7 +1,8 @@
 /* 
  * Tal Reverb 3 Port
  * Ported from https://github.com/DISTRHO/DISTRHO-Ports/tree/master/ports-juce5/tal-reverb-3
- *  
+ * Original https://tal-software.com/
+ * 
  * Javier Nonis (https://github.com/jnonis) - 2024
  */
 #ifndef _EFFECT_TALREVERB3_H

src/effects.h

@@ -14,6 +14,8 @@
 #include "effect_bigmuff.h" 
 #include "effect_talreverb3.h"
 #include "effect_platervbstereo.h"
+#include "effect_mverb.h"
+#include "effect_3bandeq.h"
 
 inline AudioEffect* newAudioEffect(unsigned type, float32_t samplerate)
 {
@@ -33,6 +35,10 @@ inline AudioEffect* newAudioEffect(unsigned type, float32_t samplerate)
 		return new AudioEffectTalReverb3(samplerate);
 	case EFFECT_REVERB:
 		return new AudioEffectPlateReverb(samplerate);
+	case EFFECT_MVERB:
+		return new AudioEffectMVerb(samplerate);
+	case EFFECT_3BANDEQ:
+		return new AudioEffect3BandEQ(samplerate);
 	case EFFECT_NONE:
 	default:
 		return new AudioEffectNone(samplerate);
@@ -50,6 +56,8 @@ inline std::string getFXTypeName(int nValue)
 	case EFFECT_BIGMUFF: return "Big Muff";
 	case EFFECT_TALREVERB3: return "TalRvrb3";
 	case EFFECT_REVERB: return "Reverb";
+	case EFFECT_MVERB: return "MVerb";
+	case EFFECT_3BANDEQ: return "3Band EQ";
 	case EFFECT_NONE:
 	default: return "None";
 	}

src/midi_arp.cpp

@@ -0,0 +1,169 @@
+#include "midi_arp.h"
+#include <stdio.h>
+
+MidiArp::MidiArp(float32_t samplerate, CDexedAdapter* synth) : MidiEffect(samplerate, synth)
+{
+    arpeggiator.transmitHostInfo(0, 4, 1, 1, 120.0);
+	arpeggiator.setSampleRate(samplerate);
+	
+	arpeggiator.setBpm(120);
+	
+	this->setParameter(MidiArp::Param::LATCH, 0);
+	this->setParameter(MidiArp::Param::ARP_MODE, 0);
+	this->setParameter(MidiArp::Param::DIVISION, 9);
+	this->setParameter(MidiArp::Param::NOTE_LENGTH, 70);
+	this->setParameter(MidiArp::Param::VELOCITY, 110);
+	this->setParameter(MidiArp::Param::OCTAVE_SPREAD, 1);
+	this->setParameter(MidiArp::Param::OCTAVE_MODE, 4);
+}
+
+MidiArp::~MidiArp()
+{
+}
+
+void MidiArp::setTempo(unsigned tempo)
+{
+	arpeggiator.setBpm(tempo);
+}
+
+void MidiArp::setParameter(unsigned param, unsigned value)
+{
+	switch (param)
+    {
+    case MidiArp::Param::BYPASS:
+        this->setBypass(value == 1);
+        break;
+    case MidiArp::Param::LATCH:
+		this->arpeggiator.setLatchMode(value == 1);
+        break;
+    case MidiArp::Param::SYNC:
+		this->arpeggiator.setSyncMode(value);
+        break;
+    case MidiArp::Param::ARP_MODE:
+        this->arpeggiator.setArpMode(value);
+        break;
+    case MidiArp::Param::DIVISION:
+        this->arpeggiator.setDivision(value);
+        break;
+    case MidiArp::Param::NOTE_LENGTH:
+        this->arpeggiator.setNoteLength((float) value / 100.0f);
+        break;
+    case MidiArp::Param::VELOCITY:
+        this->arpeggiator.setVelocity(value);
+        break;
+	case MidiArp::Param::OCTAVE_SPREAD:
+        this->arpeggiator.setOctaveSpread(value);
+        break;
+	case MidiArp::Param::OCTAVE_MODE:
+        this->arpeggiator.setOctaveMode(value);
+        break;
+	case MidiArp::Param::PANIC:
+        this->arpeggiator.setPanic(value == 1);
+        break;
+    default:
+        break;
+    }
+}
+
+unsigned MidiArp::getParameter(unsigned param)
+{
+	switch (param)
+    {
+    case MidiArp::Param::BYPASS:
+		return this->getBypass() ? 1 : 0;
+    case MidiArp::Param::LATCH:
+        return this->arpeggiator.getLatchMode() ? 1 : 0;
+    case MidiArp::Param::SYNC:
+        return this->arpeggiator.getSyncMode();
+    case MidiArp::Param::ARP_MODE:
+        return this->arpeggiator.getArpMode();
+    case MidiArp::Param::DIVISION:
+        return this->arpeggiator.getDivision();
+    case MidiArp::Param::NOTE_LENGTH:
+        return roundf(this->arpeggiator.getNoteLength() * 100);
+    case MidiArp::Param::VELOCITY:
+        return this->arpeggiator.getVelocity();
+	case MidiArp::Param::OCTAVE_SPREAD:
+        return this->arpeggiator.getOctaveSpread();
+	case MidiArp::Param::OCTAVE_MODE:
+        return this->arpeggiator.getOctaveMode();
+	case MidiArp::Param::PANIC:
+        return this->arpeggiator.getPanic();
+    default:
+        return 0;
+    }
+}
+
+void MidiArp::keydown(int16_t pitch, uint8_t velocity)
+{
+	MidiEvent event;
+	event.data[0] = MIDI_NOTE_ON << 4;
+	event.data[1] = pitch;
+	event.data[2] = velocity;
+	event.size = 3;
+	event.frame = 0;
+	this->events.push_back(event);
+}
+
+void MidiArp::keyup(int16_t pitch)
+{
+	MidiEvent event;
+	event.data[0] = MIDI_NOTE_OFF << 4;
+	event.data[1] = pitch;
+	event.data[2] = 0;
+	event.size = 3;
+	event.frame = 0;
+	this->events.push_back(event);
+}
+
+void MidiArp::doProcess(uint16_t len)
+{
+	arpeggiator.emptyMidiBuffer();
+	
+	// Check if host supports Bar-Beat-Tick position
+	arpeggiator.setSyncMode(0);
+	/*
+    const TimePosition& position = getTimePosition();
+	if (!position.bbt.valid) {
+		// set-arpeggiator in free running mode
+		arpeggiator.setSyncMode(0);
+	} else {
+		arpeggiator.setSyncMode(syncMode);
+		arpeggiator.transmitHostInfo(position.playing, position.bbt.beatsPerBar, position.bbt.beat, position.bbt.barBeat, static_cast<float>(position.bbt.beatsPerMinute));
+	}
+    */
+
+   	arpeggiator.process(events.data(), events.size(), len);
+	events.clear();
+	events.shrink_to_fit();
+	
+	struct MidiBuffer buffer = arpeggiator.getMidiBuffer();
+	for (unsigned x = 0; x < buffer.numBufferedEvents + buffer.numBufferedThroughEvents; x++) {
+		MidiEvent event = buffer.bufferedEvents[x];
+		unsigned eventType = event.data[0] >> 4;
+		
+		switch (eventType)
+		{
+		case MIDI_NOTE_ON:
+			if (event.data[2] > 0)
+			{
+				if (event.data[2] <= 127)
+				{
+					this->synth->keydown(event.data[1], event.data[2]);
+				}
+			}
+			else
+			{
+				this->synth->keyup(event.data[1]);
+			}
+			break;
+
+		case MIDI_NOTE_OFF:
+			this->synth->keyup(event.data[1]);
+			break;
+		
+		default:
+			break;
+		}
+	}
+}

src/midi_arp.h

@@ -0,0 +1,116 @@
+/* 
+ * MOD Arpeggiator port
+ * Ported from https://ithub.com/moddevices/mod-arpeggiator-lv2
+ * 
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
+#ifndef _MIDI_ARP_H
+#define _MIDI_ARP_H
+
+#include "midi_effect_base.h"
+#include <vector>
+#include <arm_math.h>
+#include "modarpeggiator/common/commons.h"
+#include "modarpeggiator/arpeggiator.hpp"
+#include "modarpeggiator/common/clock.hpp"
+#include "modarpeggiator/common/pattern.hpp"
+
+class MidiArp : public MidiEffect
+{
+public:
+    // ID must be unique for each MidiEffect
+    static const unsigned ID = 1;
+    static constexpr const char* NAME = "Arp";
+
+    enum Param
+    {
+        BYPASS,
+        LATCH,
+        SYNC,
+        ARP_MODE,
+        DIVISION,
+        NOTE_LENGTH,
+        VELOCITY,
+        OCTAVE_SPREAD,
+        OCTAVE_MODE,
+        PANIC,
+        UNKNOWN
+    };
+
+    enum Mode
+    {
+        UP,
+        DOWN,
+        UP_DOWN,
+        UP_DOWN_ALT,
+        PLAYED,
+        RANDOM,
+        MODE_UNKNOWN
+    };
+
+    enum Division
+    {
+        D_1_1,
+        D_1_2,
+        D_1_3,
+        D_1_4,
+        D_1_4D,
+        D_1_4T,
+        D_1_8,
+        D_1_8D,
+        D_1_8T,
+        D_1_16,
+        D_1_16D,
+        D_1_16T,
+        D_1_32,
+        D_UNKNOWN
+    };
+
+    enum OctMode
+    {
+        OM_UP,
+        OM_DOWN,
+        OM_UP_DOWN,
+        OM_DOWN_UP,
+        OM_UP_CYCLE,
+        OM_UNKNOWN
+    };
+
+
+    MidiArp(float32_t samplerate, CDexedAdapter* synth);
+    virtual ~MidiArp();
+
+    virtual unsigned getId()
+    {
+        return MidiArp::ID;
+    }
+
+    virtual std::string getName()
+    {
+        return MidiArp::NAME;
+    }
+
+    virtual void setTempo(unsigned tempo);
+    virtual void setParameter(unsigned param, unsigned value);
+    virtual unsigned getParameter(unsigned param);
+    
+    virtual void keydown(int16_t pitch, uint8_t velocity);
+    virtual void keyup(int16_t pitch);
+
+protected:
+    virtual size_t getParametersSize()
+    {
+        return MidiArp::Param::UNKNOWN;
+    }
+
+    virtual void doProcess(uint16_t len);
+
+private:
+    static const unsigned MIDI_NOTE_OFF = 0b1000;
+    static const unsigned MIDI_NOTE_ON = 0b1001;
+
+    Arpeggiator arpeggiator;
+    std::vector<MidiEvent> events;
+};
+
+#endif // _MIDI_ARP_H

src/midi_effect_base.h

@@ -0,0 +1,112 @@
+/* 
+ * Base MidiEffect interface
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
+#ifndef _MIDI_EFFECT_H
+#define _MIDI_EFFECT_H
+
+#include <string>
+#include <vector>
+#include "dexedadapter.h"
+
+class MidiEffect
+{
+public:
+    // ID must be unique for each MidiEffect
+    static const unsigned ID = 0;
+    static constexpr const char* NAME = "None";
+    
+    MidiEffect(float32_t samplerate, CDexedAdapter* synth)
+    {
+        this->samplerate = samplerate;
+        this->synth = synth;
+    }
+
+    virtual ~MidiEffect()
+    {
+    }
+
+    virtual unsigned getId()
+    {
+        return MidiEffect::ID;
+    }
+    
+    virtual std::string getName()
+    {
+        return MidiEffect::NAME;
+    }
+
+    void setBypass(bool bypass)
+    {
+        this->bypass = bypass;
+    }
+    
+    bool getBypass()
+    {
+        return this->getId() == MidiEffect::ID ? true : this->bypass;
+    }
+
+    virtual void setTempo(unsigned tempo)
+    {
+    }
+
+    virtual void setParameter(unsigned param, unsigned value)
+    {
+    }
+    
+    virtual unsigned getParameter(unsigned param)
+    {
+        return 0;
+    }
+
+    void setParameters(std::vector<unsigned> params)
+    {
+        for (size_t i = 0; i < params.size(); i++)
+        {
+            this->setParameter(i, params[i]);
+        }
+    }
+
+    std::vector<unsigned> getParameters()
+    {
+        size_t len = this->getParametersSize();
+        std::vector<unsigned> params;
+        for (size_t i = 0; i < len; i++)
+        {
+            params.push_back(getParameter(i));
+        }
+        return params;
+    }
+
+    virtual void keydown(int16_t pitch, uint8_t velocity)
+    {
+    }
+
+    virtual void keyup(int16_t pitch)
+    {
+    }
+
+    void process(uint16_t len)
+    {
+        if (this->getBypass())
+        {
+            return;
+        }
+        this->doProcess(len);
+    }
+protected:
+    bool bypass = false;
+    float32_t samplerate;
+    CDexedAdapter* synth;
+
+    virtual size_t getParametersSize()
+    {
+        return 0;
+    }
+
+    virtual void doProcess(uint16_t len)
+    {
+    }
+};
+
+#endif // _MIDI_EFFECT_H

src/midi_effects.h

@@ -0,0 +1,107 @@
+#ifndef _MIDI_EFFECTS_H
+#define _MIDI_EFFECTS_H
+
+#include "midi_effect_base.h"
+#include "midi_arp.h"
+
+inline MidiEffect* newMidiEffect(unsigned type, float32_t samplerate, CDexedAdapter* synth)
+{
+    switch (type)
+	{
+	case MidiArp::ID:
+		return new MidiArp(samplerate, synth);
+	default:
+		return new MidiEffect(samplerate, synth);
+	}
+}
+
+inline std::string getMidiFXTypeName(int type)
+{
+	switch (type)
+	{
+	case MidiArp::ID:
+        return MidiArp::NAME;
+	case MidiEffect::ID:
+	default:
+        return MidiEffect::NAME;
+	}
+}
+
+inline std::string ToMidiFXType (int value)
+{
+	return getMidiFXTypeName(value);
+}
+
+inline std::string ToArpDivision (int value)
+{
+	switch (value)
+	{
+	case MidiArp::Division::D_1_1:
+		return "1/1";
+	case MidiArp::Division::D_1_2:
+		return "1/2";
+	case MidiArp::Division::D_1_3:
+		return "1/3";
+	case MidiArp::Division::D_1_4:
+		return "1/4";
+	case MidiArp::Division::D_1_4D:
+		return "1/4.";
+	case MidiArp::Division::D_1_4T:
+		return "1/4T";
+	case MidiArp::Division::D_1_8:
+		return "1/8";
+	case MidiArp::Division::D_1_8D:
+		return "1/8.";
+	case MidiArp::Division::D_1_8T:
+		return "1/8T";
+	case MidiArp::Division::D_1_16:
+		return "1/16";
+	case MidiArp::Division::D_1_16D:
+		return "1/16.";
+	case MidiArp::Division::D_1_16T:
+		return "1/16T";
+	case MidiArp::Division::D_1_32:
+	default:
+		return "1/32";
+	}
+}
+
+inline std::string ToArpMode (int value)
+{
+	switch (value)
+	{
+	case MidiArp::Mode::UP:
+		return "Up";
+	case MidiArp::Mode::DOWN:
+		return "Down";
+	case MidiArp::Mode::UP_DOWN:
+		return "Up-Down";
+	case MidiArp::Mode::UP_DOWN_ALT:
+		return "Up-Down Alt";
+	case MidiArp::Mode::PLAYED:
+		return "Played";
+	case MidiArp::Mode::RANDOM:
+	default:
+    	return "Random";
+	}
+}
+
+inline std::string ToArpOctMode (int value)
+{
+	switch (value)
+	{
+	case MidiArp::OctMode::OM_UP:
+		return "Up";
+	case MidiArp::OctMode::OM_DOWN:
+		return "Down";
+	case MidiArp::OctMode::OM_UP_DOWN:
+		return "Up-Down";
+	case MidiArp::OctMode::OM_DOWN_UP:
+		return "Down-Up";
+	case MidiArp::OctMode::OM_UP_CYCLE:
+	default:
+    	return "Up-Cycle";
+	}
+}
+
+#endif // _MIDI_EFFECTS_H

src/minidexed.cpp

@@ -108,7 +108,9 @@ CMiniDexed::CMiniDexed (CConfig *pConfig, CInterruptSystem *pInterrupt,
 
 		m_pTG[i] = new CDexedAdapter (CConfig::MaxNotes, pConfig->GetSampleRate ());
 		assert (m_pTG[i]);
-		
+		m_MidiArpSpinLock[i] = new CSpinLock();
+		m_MidiArp[i] = new MidiEffect(pConfig->GetSampleRate(), m_pTG[i]);
+
 		m_pTG[i]->setEngineType(pConfig->GetEngineType ());
 		m_pTG[i]->activate ();
 	}
@@ -416,7 +418,13 @@ void CMiniDexed::Run (unsigned nCore)
 			for (unsigned i = 0; i < CConfig::TGsCore23; i++, nTG++)
 			{
 				assert (m_pTG[nTG]);
+
+				m_MidiArpSpinLock[nTG]->Acquire();
+				m_MidiArp[nTG]->process(m_nFramesToProcess);
+				m_MidiArpSpinLock[nTG]->Release();
+				
 				m_pTG[nTG]->getSamples (m_OutputLevel[nTG][0],m_nFramesToProcess);
+				
 				m_InsertFXSpinLock[nTG]->Acquire();
 				m_InsertFX[nTG]->process(m_OutputLevel[nTG][0], m_OutputLevel[nTG][0], m_OutputLevel[nTG][0], m_OutputLevel[nTG][1], m_nFramesToProcess);
 				m_InsertFXSpinLock[nTG]->Release();
@@ -618,6 +626,24 @@ void CMiniDexed::setInsertFXType (unsigned nType, unsigned nTG)
 	m_UI.ParameterChanged ();
 }
 
+void CMiniDexed::setMidiFXType (unsigned nType, unsigned nTG)
+{
+	assert (nTG < CConfig::ToneGenerators);
+
+	// If the effect type is already set just return
+	if (m_MidiArp[nTG]->getId() == nType) {
+		return;
+	}
+
+	m_MidiArpSpinLock[nTG]->Acquire();
+	delete m_MidiArp[nTG];
+	m_MidiArp[nTG] = newMidiEffect(nType, m_pConfig->GetSampleRate(), m_pTG[nTG]);
+	m_MidiArp[nTG]->setTempo(m_nTempo);
+	m_MidiArpSpinLock[nTG]->Release();
+
+	m_UI.ParameterChanged ();
+}
+
 void CMiniDexed::setSendFXType (unsigned nType)
 {
 	m_SendFXSpinLock.Acquire();
@@ -744,6 +770,7 @@ void CMiniDexed::setTempo(unsigned nValue)
 	for (unsigned nTG = 0; nTG < CConfig::ToneGenerators; nTG++)
 	{
 		m_InsertFX[nTG]->setTempo(m_nTempo);
+		m_MidiArp[nTG]->setTempo(m_nTempo);
 	}
 
 	// Update UI
@@ -751,6 +778,16 @@ void CMiniDexed::setTempo(unsigned nValue)
 }
 
 
+bool CMiniDexed::isPlaying(void)
+{
+	return m_bPlaying;
+}
+
+void CMiniDexed::setPlaying(bool bValue)
+{
+	m_bPlaying = bValue;
+}
+
 void CMiniDexed::handleClock (void)
 {
 	if (m_nClockCounter == 0)
@@ -783,7 +820,16 @@ void CMiniDexed::keyup (int16_t pitch, unsigned nTG)
 	pitch = ApplyNoteLimits (pitch, nTG);
 	if (pitch >= 0)
 	{
-		m_pTG[nTG]->keyup (pitch);
+		if (m_MidiArp[nTG]->getBypass())
+		{
+			m_pTG[nTG]->keyup(pitch);
+		}
+		else
+		{
+			m_MidiArpSpinLock[nTG]->Acquire();
+			m_MidiArp[nTG]->keyup(pitch);
+			m_MidiArpSpinLock[nTG]->Release();
+		}
 	}
 }
 
@@ -795,7 +841,16 @@ void CMiniDexed::keydown (int16_t pitch, uint8_t velocity, unsigned nTG)
 	pitch = ApplyNoteLimits (pitch, nTG);
 	if (pitch >= 0)
 	{
-		m_pTG[nTG]->keydown (pitch, velocity);
+		if (m_MidiArp[nTG]->getBypass())
+		{
+			m_pTG[nTG]->keydown (pitch, velocity);
+		}
+		else
+		{
+			m_MidiArpSpinLock[nTG]->Acquire();
+			m_MidiArp[nTG]->keydown(pitch, velocity);
+			m_MidiArpSpinLock[nTG]->Release();
+		}
 	}
 }
 
@@ -971,6 +1026,7 @@ void CMiniDexed::SetParameter (TParameter Parameter, int nValue)
 		break;
 
 	case ParameterTempo:
+		nValue=constrain((int)nValue,30,250);
 		this->setTempo(nValue);
 		break;
 
@@ -1046,7 +1102,8 @@ void CMiniDexed::SetTGParameter (TTGParameter Parameter, int nValue, unsigned nT
 
 	case TGParameterReverbSend:	SetReverbSend (nValue, nTG);	break;
 	case TGParameterInsertFXType: setInsertFXType(nValue, nTG); break;
-
+	case TGParameterMidiFXType: setMidiFXType(nValue, nTG); break;
+	
 	default:
 		assert (0);
 		break;
@@ -1071,6 +1128,7 @@ int CMiniDexed::GetTGParameter (TTGParameter Parameter, unsigned nTG)
 	case TGParameterMIDIChannel:	return m_nMIDIChannel[nTG];
 	case TGParameterReverbSend:	return m_nReverbSend[nTG];
 	case TGParameterInsertFXType:	return m_InsertFX[nTG]->getId();
+	case TGParameterMidiFXType:	return m_MidiArp[nTG]->getId();
 	case TGParameterPitchBendRange:	return m_nPitchBendRange[nTG];
 	case TGParameterPitchBendStep:	return m_nPitchBendStep[nTG];
 	case TGParameterPortamentoMode:		return m_nPortamentoMode[nTG];
@@ -1104,6 +1162,20 @@ int CMiniDexed::GetTGParameter (TTGParameter Parameter, unsigned nTG)
 	}
 }
 
+void CMiniDexed::SetMidiFXParameter (unsigned Parameter, int nValue, unsigned nTG, unsigned nFXType) {
+	assert (nTG < CConfig::ToneGenerators);
+	assert (m_MidiArp[nTG]->getId() == nFXType);
+
+	m_MidiArp[nTG]->setParameter(Parameter, nValue);
+}
+
+int CMiniDexed::GetMidiFXParameter (unsigned Parameter, unsigned nTG, unsigned nFXType) {
+	assert (nTG < CConfig::ToneGenerators);
+	assert (m_MidiArp[nTG]->getId() == nFXType);
+
+	return m_MidiArp[nTG]->getParameter(Parameter);
+}
+
 void CMiniDexed::SetTGFXParameter (unsigned Parameter, int nValue, unsigned nTG, unsigned nFXType) {
 	assert (nTG < CConfig::ToneGenerators);
 	assert (m_InsertFX[nTG]->getId() == nFXType);
@@ -1214,12 +1286,17 @@ void CMiniDexed::ProcessSound (void)
 		}
 
 		float32_t SampleBuffer[2][nFrames];
+
+		m_MidiArpSpinLock[0]->Acquire();
+		m_MidiArp[0]->process(nFrames);
+		m_MidiArpSpinLock[0]->Release();
+		
 		m_pTG[0]->getSamples (SampleBuffer[0], nFrames);
+		
 		m_InsertFXSpinLock[0]->Acquire();
 		m_InsertFX[0]->process(SampleBuffer[0], SampleBuffer[0], SampleBuffer[0], SampleBuffer[1], nFrames);
 		m_InsertFXSpinLock[0]->Release();
 
-
 		// Convert dual float array (left, right) to single int16 array (left/right)
 		float32_t tmp_float[nFrames*2];
 		for(uint16_t i=0; i<nFrames;i++)
@@ -1271,7 +1348,13 @@ void CMiniDexed::ProcessSound (void)
 		for (unsigned i = 0; i < CConfig::TGsCore1; i++)
 		{
 			assert (m_pTG[i]);
+			
+			m_MidiArpSpinLock[i]->Acquire();
+			m_MidiArp[i]->process(nFrames);
+			m_MidiArpSpinLock[i]->Release();
+
 			m_pTG[i]->getSamples (m_OutputLevel[i][0], nFrames);
+			
 			m_InsertFXSpinLock[i]->Acquire();
 			m_InsertFX[i]->process(m_OutputLevel[i][0], m_OutputLevel[i][0], m_OutputLevel[i][0], m_OutputLevel[i][1], nFrames);
 			m_InsertFXSpinLock[i]->Release();
@@ -1438,6 +1521,12 @@ bool CMiniDexed::DoSavePerformance (void)
 		m_PerformanceConfig.SetInsertFXParams (pParams, nTG);
 		pParams.clear();
 		pParams.shrink_to_fit();
+
+		m_PerformanceConfig.SetMidiFX (m_MidiArp[nTG]->getId(), nTG);
+		std::vector<unsigned> pMidiFXParams = m_MidiArp[nTG]->getParameters();
+		m_PerformanceConfig.SetMidiFXParams (pMidiFXParams, nTG);
+		pMidiFXParams.clear();
+		pMidiFXParams.shrink_to_fit();
 				
 		m_PerformanceConfig.SetDetune (m_nMasterTune[nTG], nTG);
 		m_PerformanceConfig.SetCutoff (m_nCutoff[nTG], nTG);
@@ -1484,6 +1573,8 @@ bool CMiniDexed::DoSavePerformance (void)
 	m_PerformanceConfig.SetReverbDiffusion (m_nParameter[ParameterReverbDiffusion]);
 	m_PerformanceConfig.SetReverbLevel (m_nParameter[ParameterReverbLevel]);
 
+	m_PerformanceConfig.SetTempo (m_nTempo);
+
 	if(m_bSaveAsDeault)
 	{
 		m_PerformanceConfig.SetNewPerformance(0);
@@ -1895,6 +1986,12 @@ void CMiniDexed::LoadPerformanceParameters(void)
 			m_InsertFX[nTG]->setParameters(pParams);
 			pParams.clear();
 			pParams.shrink_to_fit();
+
+			setMidiFXType(m_PerformanceConfig.GetMidiFX (nTG), nTG);
+			std::vector<unsigned> pMidiFXParams = m_PerformanceConfig.GetMidiFXParams(nTG);
+			m_MidiArp[nTG]->setParameters(pMidiFXParams);
+			pMidiFXParams.clear();
+			pMidiFXParams.shrink_to_fit();
 			
 			m_nNoteLimitLow[nTG] = m_PerformanceConfig.GetNoteLimitLow (nTG);
 			m_nNoteLimitHigh[nTG] = m_PerformanceConfig.GetNoteLimitHigh (nTG);
@@ -1937,6 +2034,8 @@ void CMiniDexed::LoadPerformanceParameters(void)
 		SetParameter (ParameterReverbLowPass, m_PerformanceConfig.GetReverbLowPass ());
 		SetParameter (ParameterReverbDiffusion, m_PerformanceConfig.GetReverbDiffusion ());
 		SetParameter (ParameterReverbLevel, m_PerformanceConfig.GetReverbLevel ());
+
+		SetParameter (ParameterTempo, m_PerformanceConfig.GetTempo ());
 }
 
 std::string CMiniDexed::GetNewPerformanceDefaultName(void)	

src/minidexed.h

@@ -45,6 +45,7 @@
 #include "effect_platervbstereo.h"
 #include "effect_compressor.h"
 #include "effects.h"
+#include "midi_effects.h"
 
 class CMiniDexed
 #ifdef ARM_ALLOW_MULTI_CORE
@@ -85,6 +86,9 @@ public:
 	void setTempo(unsigned nValue);
 	void handleClock(void);
 
+	bool isPlaying(void);
+	void setPlaying(bool bValue);
+
 	void keyup (int16_t pitch, unsigned nTG);
 	void keydown (int16_t pitch, uint8_t velocity, unsigned nTG);
 
@@ -100,6 +104,7 @@ public:
 	void setAftertouch (uint8_t value, unsigned nTG);
 
 	void setInsertFXType (unsigned nType, unsigned nTG);
+	void setMidiFXType (unsigned nType, unsigned nTG);
 	void setSendFXType (unsigned nType);
 	void setSendFXLevel (unsigned nValue);
 	
@@ -191,6 +196,7 @@ public:
 		TGParameterVolume,
 		TGParameterPan,
 		TGParameterInsertFXType,
+		TGParameterMidiFXType,
 		TGParameterMasterTune,
 		TGParameterCutoff,
 		TGParameterResonance,
@@ -229,6 +235,9 @@ public:
 	void SetTGParameter (TTGParameter Parameter, int nValue, unsigned nTG);
 	int GetTGParameter (TTGParameter Parameter, unsigned nTG);
 
+	void SetMidiFXParameter (unsigned Parameter, int nValue, unsigned nTG, unsigned nFXType);
+	int GetMidiFXParameter (unsigned Parameter, unsigned nTG, unsigned nFXType);
+
 	void SetTGFXParameter (unsigned Parameter, int nValue, unsigned nTG, unsigned nFXType);
 	int GetTGFXParameter (unsigned Parameter, unsigned nTG, unsigned nFXType);
 
@@ -302,6 +311,7 @@ private:
 	unsigned m_nNoteLimitHigh[CConfig::ToneGenerators];
 	int m_nNoteShift[CConfig::ToneGenerators];
 
+	MidiEffect* m_MidiArp[CConfig::ToneGenerators];
 	AudioEffect* m_InsertFX[CConfig::ToneGenerators];
 	unsigned m_nReverbSend[CConfig::ToneGenerators];
   
@@ -339,6 +349,7 @@ private:
 	AudioEffect* m_SendFX = NULL;
 	float32_t m_SendFXLevel = 1.0f;
 	
+	CSpinLock* m_MidiArpSpinLock[CConfig::ToneGenerators];
 	CSpinLock* m_InsertFXSpinLock[CConfig::ToneGenerators];
 	CSpinLock m_SendFXSpinLock;
 	CSpinLock m_ReverbSpinLock;
@@ -359,6 +370,7 @@ private:
 	unsigned m_nClockCounter;
 	unsigned long m_mClockTime;
 	unsigned m_nTempo; // Tempo in BPM
+	bool m_bPlaying = false;
 };
 
 #endif

src/modarpeggiator/arpeggiator.cpp

@@ -0,0 +1,648 @@
+#include "arpeggiator.hpp"
+
+Arpeggiator::Arpeggiator() :
+	notesPressed(0),
+	activeNotes(0),
+	notePlayed(0),
+	octaveMode(0),
+	octaveSpread(1),
+	arpMode(0),
+	noteLength(0.8),
+	pitch(0),
+	previousMidiNote(0),
+	velocity(80),
+	previousSyncMode(0),
+	activeNotesIndex(0),
+	activeNotesBypassed(0),
+	timeOutTime(1000),
+	firstNoteTimer(0),
+	barBeat(0.0),
+	pluginEnabled(true),
+	first(true),
+	arpEnabled(true),
+	latchMode(false),
+	previousLatch(false),
+	latchPlaying(false),
+	trigger(false),
+	firstNote(false),
+	quantizedStart(false),
+	resetPattern(false),
+	midiNotesCopied(false),
+	panic(false),
+	division(0),
+	sampleRate(48000),
+	bpm(0)
+{
+	clock.transmitHostInfo(0, 4, 1, 1, 120.0);
+	clock.setSampleRate(static_cast<float>(48000.0));
+	clock.setDivision(7);
+
+	arpPattern = new Pattern*[6];
+
+	arpPattern[0] = new PatternUp();
+	arpPattern[1] = new PatternDown();
+	arpPattern[2] = new PatternUpDown();
+	arpPattern[3] = new PatternUpDownAlt();
+	arpPattern[4] = new PatternUp();
+	arpPattern[5] = new PatternRandom();
+
+
+	octavePattern = new Pattern*[5];
+
+	octavePattern[0] = new PatternUp();
+	octavePattern[1] = new PatternDown();
+	octavePattern[2] = new PatternUpDown();
+	octavePattern[3] = new PatternUpDownAlt();
+	octavePattern[4] = new PatternCycle();
+
+	for (unsigned i = 0; i < NUM_VOICES; i++) {
+		midiNotes[i][0] = EMPTY_SLOT;
+		midiNotes[i][1] = 0;
+		midiNotesBypassed[i] = EMPTY_SLOT;
+	}
+	for (unsigned i = 0; i < NUM_VOICES; i++) {
+		noteOffBuffer[i][MIDI_NOTE] = EMPTY_SLOT;
+		noteOffBuffer[i][MIDI_CHANNEL] = 0;
+		noteOffBuffer[i][TIMER] = 0;
+	}
+}
+
+Arpeggiator::~Arpeggiator()
+{
+
+	delete arpPattern[0];
+	delete arpPattern[1];
+	delete arpPattern[2];
+	delete arpPattern[3];
+	delete arpPattern[4];
+	delete arpPattern[5];
+	delete octavePattern[0];
+	delete octavePattern[1];
+	delete octavePattern[2];
+	delete octavePattern[3];
+	delete octavePattern[4];
+
+	delete[] arpPattern;
+	arpPattern = nullptr;
+	delete[] octavePattern;
+	octavePattern = nullptr;
+}
+
+void Arpeggiator::setArpEnabled(bool arpEnabled)
+{
+	this->arpEnabled = arpEnabled;
+}
+
+void Arpeggiator::setLatchMode(bool latchMode)
+{
+	this->latchMode = latchMode;
+}
+
+void Arpeggiator::setSampleRate(float newSampleRate)
+{
+	if (newSampleRate != sampleRate) {
+		clock.setSampleRate(newSampleRate);
+		sampleRate = newSampleRate;
+	}
+}
+
+void Arpeggiator::setSyncMode(int mode)
+{
+
+	switch (mode)
+	{
+		case FREE_RUNNING:
+			clock.setSyncMode(FREE_RUNNING);
+			quantizedStart = false;
+			break;
+		case HOST_BPM_SYNC:
+			clock.setSyncMode(HOST_BPM_SYNC);
+			quantizedStart = false;
+			break;
+		case HOST_QUANTIZED_SYNC:
+			clock.setSyncMode(HOST_QUANTIZED_SYNC);
+			quantizedStart = true;
+			break;
+	}
+}
+
+void Arpeggiator::setBpm(double newBpm)
+{
+	if (newBpm != bpm) {
+		clock.setInternalBpmValue(static_cast<float>(newBpm));
+		bpm = newBpm;
+	}
+}
+
+void Arpeggiator::setDivision(int newDivision)
+{
+	if (newDivision != division) {
+		clock.setDivision(newDivision);
+		division = newDivision;
+	}
+}
+
+void Arpeggiator::setVelocity(uint8_t velocity)
+{
+	this->velocity = velocity;
+}
+
+void Arpeggiator::setNoteLength(float noteLength)
+{
+	this->noteLength = noteLength;
+}
+
+void Arpeggiator::setOctaveSpread(int octaveSpread)
+{
+	this->octaveSpread = octaveSpread;
+}
+
+void Arpeggiator::setArpMode(int arpMode)
+{
+	arpPattern[arpMode]->setStep(arpPattern[this->arpMode]->getStep());
+	arpPattern[arpMode]->setDirection(arpPattern[this->arpMode]->getDirection());
+
+	this->arpMode = arpMode;
+}
+
+void Arpeggiator::setOctaveMode(int octaveMode)
+{
+	octavePattern[octaveMode]->setStep(octavePattern[this->octaveMode]->getStep());
+	octavePattern[octaveMode]->setDirection(octavePattern[this->octaveMode]->getDirection());
+
+	this->octaveMode = octaveMode;
+}
+
+void Arpeggiator::setPanic(bool panic)
+{
+	this->panic = panic;
+}
+
+bool Arpeggiator::getArpEnabled() const
+{
+	return arpEnabled;
+}
+
+bool Arpeggiator::getLatchMode() const
+{
+	return latchMode;
+}
+
+float Arpeggiator::getSampleRate() const
+{
+	return clock.getSampleRate();
+}
+
+int Arpeggiator::getSyncMode() const
+{
+	return clock.getSyncMode();
+}
+
+float Arpeggiator::getBpm() const
+{
+	return clock.getInternalBpmValue();
+}
+
+int Arpeggiator::getDivision() const
+{
+	return clock.getDivision();
+}
+
+uint8_t Arpeggiator::getVelocity() const
+{
+	return velocity;
+}
+
+float Arpeggiator::getNoteLength() const
+{
+	return noteLength;
+}
+
+int Arpeggiator::getOctaveSpread() const
+{
+	return octaveSpread;
+}
+
+int Arpeggiator::getArpMode() const
+{
+	return arpMode;
+}
+
+int Arpeggiator::getOctaveMode() const
+{
+	return octaveMode;
+}
+
+bool Arpeggiator::getPanic() const
+{
+	return panic;
+}
+
+void Arpeggiator::transmitHostInfo(const bool playing, const float beatsPerBar,
+		const int beat, const float barBeat, const double bpm)
+{
+	clock.transmitHostInfo(playing, beatsPerBar, beat, barBeat, bpm);
+	this->barBeat = barBeat;
+}
+
+void Arpeggiator::reset()
+{
+	clock.reset();
+	clock.setNumBarsElapsed(0);
+
+	for (unsigned a = 0; a < NUM_ARP_MODES; a++) {
+		arpPattern[arpMode]->reset();
+	}
+	for (unsigned o = 0; o < NUM_OCTAVE_MODES; o++) {
+		octavePattern[o]->reset();
+	}
+
+	activeNotesIndex = 0;
+	firstNoteTimer  = 0;
+	notePlayed = 0;
+	activeNotes = 0;
+	notesPressed = 0;
+	activeNotesBypassed = 0;
+	latchPlaying = false;
+	firstNote = false;
+	first = true;
+
+	for (unsigned i = 0; i < NUM_VOICES; i++) {
+		midiNotes[i][MIDI_NOTE] = EMPTY_SLOT;
+		midiNotes[i][MIDI_CHANNEL] = 0;
+	}
+}
+
+void Arpeggiator::emptyMidiBuffer()
+{
+	midiHandler.emptyMidiBuffer();
+}
+
+void Arpeggiator::allNotesOff()
+{
+	for (unsigned i = 0; i < NUM_VOICES; i++) {
+		midiNotesBypassed[i] = EMPTY_SLOT;
+	}
+	notesPressed = 0;
+	activeNotes = 0;
+	reset();
+}
+
+struct MidiBuffer Arpeggiator::getMidiBuffer()
+{
+	return midiHandler.getMidiBuffer();
+}
+
+void Arpeggiator::process(const MidiEvent* events, uint32_t eventCount, uint32_t n_frames)
+{
+	struct MidiEvent midiEvent;
+	struct MidiEvent midiThroughEvent;
+
+	if (!arpEnabled && !latchMode) {
+
+		reset();
+
+		for (unsigned clear_notes = 0; clear_notes < NUM_VOICES; clear_notes++) {
+			midiNotes[clear_notes][MIDI_NOTE] = EMPTY_SLOT;
+			midiNotes[clear_notes][MIDI_CHANNEL] = 0;
+		}
+	}
+
+	if (!latchMode && previousLatch && notesPressed <= 0) {
+		reset();
+	}
+	if (latchMode != previousLatch) {
+		previousLatch = latchMode;
+	}
+
+	if (panic) {
+		reset();
+		panic = false;
+	}
+
+	for (uint32_t i=0; i<eventCount; ++i) {
+
+		uint8_t status = events[i].data[0] & 0xF0;
+
+		uint8_t midiNote = events[i].data[1];
+		uint8_t noteToFind;
+		uint8_t foundNote;
+		size_t searchNote;
+
+		if (arpEnabled) {
+
+			if (!latchPlaying && (midiNote == 0x7b && events[i].size == 3)) {
+				allNotesOff();
+			}
+
+			midiNotesCopied = false;
+
+			bool voiceFound;
+			bool pitchFound;
+			bool noteOffFoundInBuffer;
+			size_t findFreeVoice;
+			size_t findActivePitch;
+
+			uint8_t channel = events[i].data[0] & 0x0F;
+
+			switch(status) {
+				case MIDI_NOTEON:
+					if (activeNotes > NUM_VOICES - 1) {
+						reset();
+					} else {
+						if (first) {
+							firstNote = true;
+						}
+						if (notesPressed == 0) {
+							if (!latchPlaying) { //TODO check if there needs to be an exception when using sync
+								octavePattern[octaveMode]->reset();
+								clock.reset();
+								notePlayed = 0;
+							}
+							if (latchMode) {
+								latchPlaying = true;
+								activeNotes = 0;
+								for (unsigned i = 0; i < NUM_VOICES; i++) {
+									midiNotes[i][MIDI_NOTE] = EMPTY_SLOT;
+									midiNotes[i][MIDI_CHANNEL] = 0;
+								}
+							}
+							resetPattern = true;
+						}
+
+						findFreeVoice = 0;
+						findActivePitch = 0;
+						voiceFound = false;
+						pitchFound = false;
+
+						while (findActivePitch < NUM_VOICES && !pitchFound)
+						{
+							if (midiNotes[findActivePitch][MIDI_NOTE] == (uint32_t)midiNote) {
+								pitchFound = true;
+							}
+							findActivePitch++;
+						}
+
+						if (!pitchFound) {
+							while (findFreeVoice < NUM_VOICES && !voiceFound)
+							{
+								if (midiNotes[findFreeVoice][MIDI_NOTE] == EMPTY_SLOT) {
+									midiNotes[findFreeVoice][MIDI_NOTE] = midiNote;
+									midiNotes[findFreeVoice][MIDI_CHANNEL] = channel;
+									voiceFound = true;
+								}
+								findFreeVoice++;
+							}
+							notesPressed++;
+							activeNotes++;
+						}
+
+						if (arpMode != ARP_PLAYED)
+							utils.quicksort(midiNotes, 0, NUM_VOICES - 1);
+						if (midiNote < midiNotes[notePlayed - 1][MIDI_NOTE] && notePlayed > 0) {
+							notePlayed++;
+						}
+					}
+					break;
+				case MIDI_NOTEOFF:
+					searchNote = 0;
+					foundNote = 0;
+					noteOffFoundInBuffer = false;
+					noteToFind = midiNote;
+
+					if (!latchMode) {
+						latchPlaying = false;
+					} else {
+						latchPlaying = true;
+					}
+
+					while (searchNote < NUM_VOICES)
+					{
+						if (midiNotes[searchNote][MIDI_NOTE] == noteToFind)
+						{
+							foundNote = searchNote;
+							noteOffFoundInBuffer = true;
+							searchNote = NUM_VOICES;
+						}
+						searchNote++;
+					}
+
+					if (noteOffFoundInBuffer) {
+
+						notesPressed = (notesPressed > 0) ? notesPressed - 1 : 0;
+
+						if (!latchPlaying) {
+							activeNotes = notesPressed;
+						}
+
+						if (!latchMode) {
+							midiNotes[foundNote][MIDI_NOTE] = EMPTY_SLOT;
+							midiNotes[foundNote][MIDI_CHANNEL] = 0;
+							if (arpMode != ARP_PLAYED)
+								utils.quicksort(midiNotes, 0, NUM_VOICES - 1);
+						}
+					} else {
+						midiThroughEvent.frame = events[i].frame;
+						midiThroughEvent.size = events[i].size;
+						for (unsigned d = 0; d < midiThroughEvent.size; d++) {
+							midiThroughEvent.data[d] = events[i].data[d];
+						}
+						midiHandler.appendMidiThroughMessage(midiThroughEvent);
+					}
+					if (activeNotes == 0 && !latchPlaying && !latchMode) {
+						reset();
+					}
+					break;
+				default:
+					midiThroughEvent.frame = events[i].frame;
+					midiThroughEvent.size = events[i].size;
+					for (unsigned d = 0; d < midiThroughEvent.size; d++) {
+						midiThroughEvent.data[d] = events[i].data[d];
+					}
+					midiHandler.appendMidiThroughMessage(midiThroughEvent);
+					break;
+			}
+		} else { //if arpeggiator is off
+
+			if (!midiNotesCopied) {
+				for (unsigned b = 0; b < NUM_VOICES; b++) {
+					midiNotesBypassed[b] = midiNotes[b][MIDI_NOTE];
+				}
+				midiNotesCopied = true;
+			}
+
+			if (latchMode) {
+
+				uint8_t noteToFind = midiNote;
+				size_t searchNote = 0;
+
+				switch (status)
+				{
+					case MIDI_NOTEOFF:
+						while (searchNote < NUM_VOICES)
+						{
+							if (midiNotesBypassed[searchNote] == noteToFind) {
+								midiNotesBypassed[searchNote] = EMPTY_SLOT;
+								searchNote = NUM_VOICES;
+								notesPressed = (notesPressed > 0) ? notesPressed - 1 : 0;
+							}
+							searchNote++;
+						}
+						break;
+				}
+			}
+
+			if (midiNote == 0x7b && events[i].size == 3) {
+				allNotesOff();
+			}
+			//send MIDI message through
+			midiHandler.appendMidiThroughMessage(events[i]);
+			first = true;
+		}
+	}
+
+	arpPattern[arpMode]->setPatternSize(activeNotes);
+
+	int patternSize;
+
+	switch (arpMode)
+	{
+		case ARP_UP_DOWN:
+			patternSize = (activeNotes >= 3) ? activeNotes + (activeNotes - 2) : activeNotes;
+			break;
+		case ARP_UP_DOWN_ALT:
+			patternSize = (activeNotes >= 3) ? activeNotes * 2 : activeNotes;
+			break;
+		default:
+			patternSize = activeNotes;
+			break;
+	}
+
+	switch (octaveMode)
+	{
+		case ONE_OCT_UP_PER_CYCLE:
+			octavePattern[octaveMode]->setPatternSize(patternSize);
+			octavePattern[octaveMode]->setCycleRange(octaveSpread);
+			break;
+		default:
+			octavePattern[octaveMode]->setPatternSize(octaveSpread);
+			break;
+	}
+
+	for (unsigned s = 0; s < n_frames; s++) {
+
+		bool timeOut = (firstNoteTimer > (int)timeOutTime) ? false : true;
+
+		if (firstNote) {
+			clock.closeGate(); //close gate to prevent opening before timeOut
+			firstNoteTimer++;
+		}
+
+		if (clock.getSyncMode() <= 1 && first) {
+			clock.setPos(0);
+			clock.reset();
+		}
+
+		clock.tick();
+
+		if ((clock.getGate() && !timeOut)) {
+
+			if (arpEnabled) {
+
+				if (resetPattern) {
+					octavePattern[octaveMode]->reset();
+					if (octaveMode == ARP_DOWN) {
+						octavePattern[octaveMode]->setStep(activeNotes - 1); //TODO maybe put this in reset()
+					}
+
+					arpPattern[arpMode]->reset();
+					if (arpMode == ARP_DOWN) {
+						arpPattern[arpMode]->setStep(activeNotes - 1);
+					}
+
+					resetPattern = false;
+
+					notePlayed = arpPattern[arpMode]->getStep();
+				}
+
+				if (first) {
+					//send all notes off, on current active MIDI channel
+					midiEvent.size = 3;
+					midiEvent.data[2] = 0;
+
+					midiEvent.frame = s;
+					midiEvent.data[0] = 0xb0 | midiNotes[notePlayed][MIDI_CHANNEL];
+					midiEvent.data[1] = 0x40; // sustain pedal
+					midiHandler.appendMidiMessage(midiEvent);
+					midiEvent.data[1] = 0x7b; // all notes off
+					midiHandler.appendMidiMessage(midiEvent);
+
+					first = false;
+				}
+			}
+
+			size_t searchedVoices = 0;
+			bool   noteFound = false;
+
+			while (!noteFound && searchedVoices < NUM_VOICES && activeNotes > 0 && arpEnabled)
+			{
+				notePlayed = (notePlayed < 0) ? 0 : notePlayed;
+
+				if (midiNotes[notePlayed][MIDI_NOTE] > 0
+						&& midiNotes[notePlayed][MIDI_NOTE] < 128)
+				{
+					//create MIDI note on message
+					uint8_t midiNote = midiNotes[notePlayed][MIDI_NOTE];
+					uint8_t channel = midiNotes[notePlayed][MIDI_CHANNEL];
+
+					if (arpEnabled) {
+
+						uint8_t octave = octavePattern[octaveMode]->getStep() * 12;
+						octavePattern[octaveMode]->goToNextStep();
+
+						midiNote = midiNote + octave;
+
+						midiEvent.frame = s;
+						midiEvent.size = 3;
+						midiEvent.data[0] = MIDI_NOTEON | channel;
+						midiEvent.data[1] = midiNote;
+						midiEvent.data[2] = velocity;
+
+						midiHandler.appendMidiMessage(midiEvent);
+
+						noteOffBuffer[activeNotesIndex][MIDI_NOTE] = (uint32_t)midiNote;
+						noteOffBuffer[activeNotesIndex][MIDI_CHANNEL] = (uint32_t)channel;
+						activeNotesIndex = (activeNotesIndex + 1) % NUM_NOTE_OFF_SLOTS;
+						noteFound = true;
+						firstNote = false;
+					}
+				}
+				arpPattern[arpMode]->goToNextStep();
+				notePlayed = arpPattern[arpMode]->getStep();
+				searchedVoices++;
+			}
+			clock.closeGate();
+		}
+
+		for (size_t i = 0; i < NUM_NOTE_OFF_SLOTS; i++) {
+			if (noteOffBuffer[i][MIDI_NOTE] != EMPTY_SLOT) {
+				noteOffBuffer[i][TIMER] += 1;
+				if (noteOffBuffer[i][TIMER] > static_cast<uint32_t>(clock.getPeriod() * noteLength)) {
+					midiEvent.frame = s;
+					midiEvent.size = 3;
+					midiEvent.data[0] = MIDI_NOTEOFF | noteOffBuffer[i][MIDI_CHANNEL];
+					midiEvent.data[1] = static_cast<uint8_t>(noteOffBuffer[i][MIDI_NOTE]);
+					midiEvent.data[2] = 0;
+
+					midiHandler.appendMidiMessage(midiEvent);
+
+					noteOffBuffer[i][MIDI_NOTE] = EMPTY_SLOT;
+					noteOffBuffer[i][MIDI_CHANNEL] = 0;
+					noteOffBuffer[i][TIMER] = 0;
+
+				}
+			}
+		}
+	}
+	midiHandler.mergeBuffers();
+}

src/modarpeggiator/arpeggiator.hpp

@@ -0,0 +1,122 @@
+#ifndef _H_ARPEGGIATOR_
+#define _H_ARPEGGIATOR_
+
+#include <cstdint>
+
+#include "common/commons.h"
+#include "common/clock.hpp"
+#include "common/pattern.hpp"
+#include "common/midiHandler.hpp"
+#include "utils.hpp"
+
+#define NUM_VOICES 32
+#define NUM_NOTE_OFF_SLOTS 32
+#define PLUGIN_URI "http://moddevices.com/plugins/mod-devel/arpeggiator"
+
+#define MIDI_NOTEOFF 0x80
+#define MIDI_NOTEON  0x90
+
+#define MIDI_NOTE 0
+#define MIDI_CHANNEL 1
+#define TIMER 2
+
+#define NUM_ARP_MODES 6
+#define NUM_OCTAVE_MODES 5
+
+#define NUM_MIDI_CHANNELS 16
+
+#define ONE_OCT_UP_PER_CYCLE 4
+
+class Arpeggiator {
+public:
+	enum ArpModes {
+		ARP_UP = 0,
+		ARP_DOWN,
+		ARP_UP_DOWN,
+		ARP_UP_DOWN_ALT,
+		ARP_PLAYED,
+		ARP_RANDOM
+	};
+	Arpeggiator();
+	~Arpeggiator();
+	void setArpEnabled(bool arpEnabled);
+	void setLatchMode(bool latchMode);
+	void setSampleRate(float sampleRate);
+	void setSyncMode(int mode);
+	void setBpm(double bpm);
+	void setDivision(int division);
+	void setVelocity(uint8_t velocity);
+	void setNoteLength(float noteLength);
+	void setOctaveSpread(int octaveSpread);
+	void setArpMode(int arpMode);
+	void setOctaveMode(int octaveMode);
+	void setPanic(bool panic);
+	bool getArpEnabled() const;
+	bool getLatchMode() const;
+	float getSampleRate() const;
+	int getSyncMode() const;
+	float getBpm() const;
+	int getDivision() const;
+	uint8_t getVelocity() const;
+	float getNoteLength() const;
+	int getOctaveSpread() const;
+	int getArpMode() const;
+	int getOctaveMode() const;
+	bool getPanic() const;
+	void transmitHostInfo(const bool playing, const float beatsPerBar,
+	const int beat, const float barBeat, const double bpm);
+	void reset();
+	void emptyMidiBuffer();
+	void allNotesOff();
+	struct MidiBuffer getMidiBuffer();
+	void process(const MidiEvent* event, uint32_t eventCount, uint32_t n_frames);
+private:
+	uint8_t midiNotes[NUM_VOICES][2];
+	uint8_t midiNotesBypassed[NUM_VOICES];
+	uint32_t noteOffBuffer[NUM_NOTE_OFF_SLOTS][3];
+
+	int notesPressed;
+	int activeNotes;
+	int notePlayed;
+
+	int octaveMode;
+	int octaveSpread;
+	int arpMode;
+
+	float noteLength;
+
+	uint8_t pitch;
+	uint8_t previousMidiNote;
+	uint8_t velocity;
+	int previousSyncMode;
+	int activeNotesIndex;
+	int activeNotesBypassed;
+	int timeOutTime;
+	int firstNoteTimer;
+	float barBeat;
+
+	bool pluginEnabled;
+	bool first;
+	bool arpEnabled;
+	bool latchMode;
+	bool previousLatch;
+	bool latchPlaying;
+	bool trigger;
+	bool firstNote;
+	bool quantizedStart;
+	bool resetPattern;
+	bool midiNotesCopied;
+	bool panic;
+
+	int division;
+	float sampleRate;
+	double bpm;
+
+	ArpUtils utils;
+	Pattern **arpPattern;
+	Pattern **octavePattern;
+	MidiHandler midiHandler;
+	PluginClock clock;
+};
+
+#endif //_H_ARPEGGIATOR_

src/modarpeggiator/common/clock.cpp

@@ -0,0 +1,241 @@
+#include "clock.hpp"
+
+PluginClock::PluginClock() :
+	gate(false),
+	trigger(false),
+	beatSync(true),
+	phaseReset(false),
+	playing(false),
+	previousPlaying(false),
+	endOfBar(false),
+	init(false),
+	period(0),
+	halfWavelength(0),
+	quarterWaveLength(0),
+	pos(0),
+	beatsPerBar(1.0),
+	bpm(120.0),
+	internalBpm(120.0),
+	previousBpm(0),
+	sampleRate(48000.0),
+	division(1),
+	hostBarBeat(0.0),
+	beatTick(0.0),
+	syncMode(1),
+	previousSyncMode(0),
+	hostTick(0),
+	hostBeat(0),
+	barLength(4),
+	numBarsElapsed(0),
+	previousBeat(0),
+	arpMode(0)
+{
+}
+
+PluginClock::~PluginClock()
+{
+}
+
+void PluginClock::transmitHostInfo(const bool playing, const float beatsPerBar,
+		const int hostBeat, const float hostBarBeat, const float hostBpm)
+{
+	this->beatsPerBar = beatsPerBar;
+	this->hostBeat = hostBeat;
+	this->hostBarBeat = hostBarBeat;
+	this->hostBpm = hostBpm;
+	this->playing = playing;
+
+	if (playing && !previousPlaying && beatSync) {
+		syncClock();
+	}
+	if (playing != previousPlaying) {
+		previousPlaying = playing;
+	}
+
+	if (!init) {
+		calcPeriod();
+		init = true;
+	}
+}
+
+void PluginClock::setSyncMode(int mode)
+{
+	switch (mode)
+	{
+		case FREE_RUNNING:
+			beatSync = false;
+			break;
+		case HOST_BPM_SYNC:
+			beatSync = false;
+			break;
+		case HOST_QUANTIZED_SYNC:
+			beatSync = true;
+			break;
+	}
+
+	this->syncMode = mode;
+}
+
+void PluginClock::setInternalBpmValue(float internalBpm)
+{
+	this->internalBpm = internalBpm;
+}
+
+void PluginClock::setBpm(float bpm)
+{
+	this->bpm = bpm;
+	calcPeriod();
+}
+
+void PluginClock::setSampleRate(float sampleRate)
+{
+	this->sampleRate = sampleRate;
+	calcPeriod();
+}
+
+void PluginClock::setDivision(int setDivision)
+{
+	this->division = setDivision;
+	this->divisionValue = divisionValues[setDivision];
+
+	calcPeriod();
+}
+
+void PluginClock::syncClock()
+{
+	pos = static_cast<uint32_t>(fmod(sampleRate * (60.0f / bpm) * (hostBarBeat + (numBarsElapsed * beatsPerBar)), sampleRate * (60.0f / (bpm * (divisionValue / 2.0f)))));
+}
+
+void PluginClock::setPos(uint32_t pos)
+{
+	this->pos = pos;
+}
+
+void PluginClock::setNumBarsElapsed(uint32_t numBarsElapsed)
+{
+	this->numBarsElapsed = numBarsElapsed;
+}
+
+void PluginClock::calcPeriod()
+{
+	period = static_cast<uint32_t>(sampleRate * (60.0f / (bpm * (divisionValue / 2.0f))));
+	halfWavelength = static_cast<uint32_t>(period / 2.0f);
+	quarterWaveLength = static_cast<uint32_t>(halfWavelength / 2.0f);
+	period = (period <= 0) ? 1 : period;
+}
+
+void PluginClock::closeGate()
+{
+	gate = false;
+}
+
+void PluginClock::reset()
+{
+	trigger = false;
+}
+
+float PluginClock::getSampleRate() const
+{
+	return sampleRate;
+}
+
+bool PluginClock::getGate() const
+{
+	return gate;
+}
+
+int PluginClock::getSyncMode() const
+{
+	return syncMode;
+}
+
+float PluginClock::getInternalBpmValue() const
+{
+	return internalBpm;
+}
+
+int PluginClock::getDivision() const
+{
+	return division;
+}
+
+uint32_t PluginClock::getPeriod() const
+{
+	return period;
+}
+
+uint32_t PluginClock::getPos() const
+{
+	return pos;
+}
+
+void PluginClock::tick()
+{
+	int beat = static_cast<int>(hostBarBeat);
+
+	if (beatsPerBar <= 1) {
+		if (hostBarBeat > 0.99 && !endOfBar) {
+			endOfBar = true;
+		}
+		else if (hostBarBeat < 0.1 && endOfBar) {
+			numBarsElapsed++;
+			endOfBar = false;
+		}
+	} else {
+		if (beat != previousBeat) {
+			numBarsElapsed = (beat == 0) ? numBarsElapsed + 1 : numBarsElapsed;
+			previousBeat = beat;
+		}
+	}
+
+	float threshold = 0.009; //TODO might not be needed
+
+	switch (syncMode)
+	{
+		case FREE_RUNNING:
+			if ((internalBpm != previousBpm) || (syncMode != previousSyncMode)) {
+				setBpm(internalBpm);
+				previousBpm = internalBpm;
+				previousSyncMode = syncMode;
+			}
+			break;
+		case HOST_BPM_SYNC:
+			if ((hostBpm != previousBpm && (fabs(previousBpm - hostBpm) > threshold)) || (syncMode != previousSyncMode)) {
+				setBpm(hostBpm);
+				previousBpm = hostBpm;
+				previousSyncMode = syncMode;
+			}
+			break;
+		case HOST_QUANTIZED_SYNC: //TODO fix this duplicate
+			if ((hostBpm != previousBpm && (fabs(previousBpm - hostBpm) > threshold)) || (syncMode != previousSyncMode)) {
+				setBpm(hostBpm);
+				if (playing) {
+					syncClock();
+				}
+				previousBpm = hostBpm;
+				previousSyncMode = syncMode;
+			}
+			break;
+	}
+
+	if (pos > period) {
+		pos = 0;
+	}
+
+	if (pos < quarterWaveLength && !trigger) {
+		gate = true;
+		trigger = true;
+	} else if (pos > halfWavelength && trigger) {
+		if (playing && beatSync) {
+			syncClock();
+		}
+		trigger = false;
+	}
+
+	if (playing && beatSync) {
+		syncClock(); //hard-sync to host position
+	}
+	else if (!beatSync) {
+		pos++;
+	}
+}

src/modarpeggiator/common/clock.hpp

@@ -0,0 +1,80 @@
+#ifndef _H_CLOCK_
+#define _H_CLOCK_
+
+#include <cstdint>
+#include <math.h>
+
+enum SyncMode {
+	FREE_RUNNING = 0,
+	HOST_BPM_SYNC,
+	HOST_QUANTIZED_SYNC
+};
+
+class PluginClock {
+public:
+	PluginClock();
+	~PluginClock();
+	void transmitHostInfo(const bool playing, const float beatstPerBar,
+			const int hostBeat, const float hostBarBeat, const float hostBpm);
+	void setSampleRate(float sampleRate);
+	void setSyncMode(int mode);
+	void setInternalBpmValue(float internalBpm);
+	void setDivision(int division);
+	void syncClock();
+	void setPos(uint32_t pos);
+	void setNumBarsElapsed(uint32_t numBarsElapsed);
+	void calcPeriod();
+	void closeGate();
+	void reset();
+	bool getGate() const;
+	float getSampleRate() const;
+	int getSyncMode() const;
+	float getInternalBpmValue() const;
+	int getDivision() const;
+	uint32_t getPeriod() const;
+	uint32_t getPos() const;
+	void tick();
+
+private:
+	void setBpm(float bpm);
+
+	bool gate;
+	bool trigger;
+	bool beatSync;
+	bool phaseReset;
+	bool playing;
+	bool previousPlaying;
+	bool endOfBar;
+	bool init;
+
+	uint32_t period;
+	uint32_t halfWavelength;
+	uint32_t quarterWaveLength;
+	uint32_t pos;
+
+	float beatsPerBar;
+	float bpm;
+	float internalBpm;
+	float hostBpm;
+	float previousBpm;
+	float sampleRate;
+	int division;
+	float divisionValue;
+
+	float hostBarBeat;
+	float beatTick;
+	int syncMode;
+	int previousSyncMode;
+	int hostTick;
+	int hostBeat;
+	int barLength;
+	int numBarsElapsed;
+	int previousBeat;
+
+	int arpMode;
+
+    // "1/1" "1/2" "1/3" "1/4" "1/4." "1/4T" "1/8" "1/8." "1/8T" "1/16" "1/16." "1/16T" "1/32"
+	float divisionValues[13] {0.5, 1, 1.5, 2.0, 2.66666, 3.0, 4.0, 5.33333, 6.0, 8.0, 10.66666, 12.0, 16.0};
+};
+
+#endif

src/modarpeggiator/common/commons.h

@@ -0,0 +1,33 @@
+#ifndef _H_COMMONS_
+#define _H_COMMONS_
+
+#include <stdint.h>
+
+/**
+   MIDI event.
+ */
+struct MidiEvent {
+   /**
+      Size of internal data.
+    */
+    static const uint32_t kDataSize = 4;
+
+   /**
+      Time offset in frames.
+    */
+    uint32_t frame;
+
+   /**
+      Number of bytes used.
+    */
+    uint32_t size;
+
+   /**
+      MIDI data.@n
+      If size > kDataSize, dataExt is used (otherwise null).
+    */
+    uint8_t        data[kDataSize];
+    const uint8_t* dataExt;
+};
+
+#endif

src/modarpeggiator/common/midiHandler.cpp

@@ -0,0 +1,48 @@
+#include "midiHandler.hpp"
+#include <stdio.h>
+
+MidiHandler::MidiHandler()
+{
+	buffer.bufferedEvents = new MidiEvent[MIDI_BUFFER_SIZE];
+	buffer.bufferedMidiThroughEvents = new MidiEvent[MIDI_BUFFER_SIZE];
+	buffer.midiOutputBuffer = new MidiEvent[MIDI_BUFFER_SIZE];
+	emptyMidiBuffer();
+}
+
+MidiHandler::~MidiHandler()
+{
+	delete buffer.bufferedEvents;
+	delete buffer.bufferedMidiThroughEvents;
+	delete buffer.midiOutputBuffer;
+}
+
+void MidiHandler::emptyMidiBuffer()
+{
+	buffer.numBufferedEvents = 0;
+	buffer.numBufferedThroughEvents = 0;
+}
+
+void MidiHandler::appendMidiMessage(MidiEvent event)
+{
+	buffer.bufferedEvents[buffer.numBufferedEvents] = event;
+	buffer.numBufferedEvents = (buffer.numBufferedEvents + 1) % buffer.maxBufferSize;
+}
+
+void MidiHandler::appendMidiThroughMessage(MidiEvent event)
+{
+	buffer.bufferedMidiThroughEvents[buffer.numBufferedThroughEvents] = event;
+	buffer.numBufferedThroughEvents = (buffer.numBufferedThroughEvents + 1) % buffer.maxBufferSize;
+}
+
+void MidiHandler::mergeBuffers()
+{
+	for (unsigned e = 0; e < buffer.numBufferedThroughEvents; e++) {
+		buffer.bufferedEvents[e + buffer.numBufferedEvents] = buffer.bufferedMidiThroughEvents[e];
+	}
+}
+
+struct MidiBuffer MidiHandler::getMidiBuffer()
+{
+	mergeBuffers();
+	return buffer;
+}

src/modarpeggiator/common/midiHandler.hpp

@@ -0,0 +1,60 @@
+#ifndef _H_MIDI_HANDLER_
+#define _H_MIDI_HANDLER_
+
+#include "commons.h"
+
+#include <arm_math.h>
+#include <cstdint>
+
+#define MIDI_BUFFER_SIZE 2048
+#define EMPTY_SLOT 200
+
+#define MIDI_NOTEOFF 0x80
+#define MIDI_NOTEON  0x90
+#define MIDI_SYSTEM_EXCLUSIVE 0xF0
+#define MIDI_MTC_QUARTER_FRAME 0xF1
+#define MIDI_SONG_POSITION_POINTER 0xF2
+#define MIDI_SONG_SELECT 0xF3
+#define MIDI_UNDEFINED_F4 0xF4
+#define MIDI_UNDEFINED_F5 0xF5
+#define MIDI_TUNE_REQUEST 0xF6
+#define MIDI_END_OF_EXCLUSIVE 0xF7
+#define MIDI_TIMING_CLOCK 0xF8
+#define MIDI_UNDEFINED_F9 0xF9
+#define MIDI_START 0xFA
+#define MIDI_CONTINUE 0xFB
+#define MIDI_STOP 0xFC
+#define MIDI_UNDEFINED_FD 0xFD
+#define MIDI_ACTIVE_SENSING 0xFE
+#define MIDI_SYSTEM_RESET 0xFF
+
+struct MidiBuffer {
+	unsigned maxBufferSize = MIDI_BUFFER_SIZE;
+
+	MidiEvent* bufferedEvents;
+	unsigned numBufferedEvents;
+
+	MidiEvent* bufferedMidiThroughEvents;
+	unsigned numBufferedThroughEvents;
+
+	MidiEvent* midiOutputBuffer;
+	unsigned numOutputEvents;
+};
+
+class MidiHandler {
+public:
+	MidiHandler();
+	~MidiHandler();
+	void emptyMidiBuffer();
+	void appendMidiMessage(MidiEvent event);
+	void appendMidiThroughMessage(MidiEvent event);
+	void resetBuffer();
+	int getNumEvents();
+	void mergeBuffers();
+	MidiEvent getMidiEvent(int index);
+	struct MidiBuffer getMidiBuffer();
+private:
+	MidiBuffer buffer;
+};
+
+#endif //_H_MIDI_HANDLER_

src/modarpeggiator/common/pattern.cpp

@@ -0,0 +1,242 @@
+#include "pattern.hpp"
+
+Pattern::Pattern() : size(1), step(0), range(1)
+{
+}
+
+Pattern::~Pattern()
+{
+}
+
+void Pattern::setPatternSize(int size)
+{
+	this->size = size;
+}
+
+void Pattern::setStep(int step)
+{
+	this->step = step;
+}
+
+void Pattern::setCycleRange(int range)
+{
+	this->range = range;
+}
+
+int Pattern::getSize()
+{
+	return size;
+}
+
+int Pattern::getStep()
+{
+	return step;
+}
+
+int Pattern::getDirection()
+{
+	return direction;
+}
+
+PatternUp::PatternUp()
+{
+	reset();
+}
+
+PatternUp::~PatternUp()
+{
+}
+
+void PatternUp::setDirection(int direction)
+{
+	this->direction = abs(direction);
+}
+
+void PatternUp::reset()
+{
+	step = 0;
+	direction = 1;
+}
+
+void PatternUp::goToNextStep()
+{
+	if (size > 0) {
+		step = (step + 1) % size;
+	} else {
+		step = 0;
+	}
+}
+
+PatternDown::PatternDown()
+{
+	reset();
+}
+
+PatternDown::~PatternDown()
+{
+}
+
+void PatternDown::setDirection(int direction)
+{
+	this->direction = abs(direction) * -1;
+}
+
+void PatternDown::reset()
+{
+	step = 0;
+	direction = -1;
+}
+
+void PatternDown::goToNextStep()
+{
+	if (size > 0) {
+		step = (step + direction < 0) ? size - 1 : step + direction;
+	} else {
+		step = 0;
+	}
+}
+
+PatternUpDown::PatternUpDown()
+{
+	reset();
+}
+
+PatternUpDown::~PatternUpDown()
+{
+}
+
+void PatternUpDown::setDirection(int direction)
+{
+	this->direction = direction;
+}
+
+void PatternUpDown::reset()
+{
+	step = 0;
+	direction = 1;
+}
+
+void PatternUpDown::goToNextStep()
+{
+	if (size > 1) {
+		int nextStep = step + direction;
+		direction = (nextStep >= size) ? -1 : direction;
+		direction = (nextStep < 0) ? 1 : direction;
+		step += direction;
+	} else {
+		step = 0;
+	}
+}
+
+PatternUpDownAlt::PatternUpDownAlt()
+{
+	reset();
+}
+
+PatternUpDownAlt::~PatternUpDownAlt()
+{
+}
+
+void PatternUpDownAlt::setDirection(int direction)
+{
+	this->direction = direction;
+}
+
+void PatternUpDownAlt::reset()
+{
+	step = 0;
+	direction = 1;
+	checked = false;
+	skip = false;
+}
+
+void PatternUpDownAlt::goToNextStep()
+{
+	if (size > 1) {
+		int nextStep = step + direction;
+
+		if (!checked) {
+			if (nextStep >= size) {
+				direction = -1;
+				skip = true;
+				checked = true;
+			}
+			if (nextStep < 0) {
+				direction = 1;
+				skip = true;
+				checked = true;
+			}
+		}
+
+		if (!skip) {
+			step += direction;
+			checked = false;
+		}
+		skip = false;
+	} else {
+		step = 0;
+		//TODO init other values
+	}
+}
+
+PatternRandom::PatternRandom()
+{
+	reset();
+}
+
+PatternRandom::~PatternRandom()
+{
+}
+
+void PatternRandom::setDirection(int direction)
+{
+	this->direction = direction;
+}
+
+void PatternRandom::reset()
+{
+	goToNextStep();
+}
+
+void PatternRandom::goToNextStep()
+{
+    step = rand() % size;
+}
+
+PatternCycle::PatternCycle()
+{
+	reset();
+}
+
+PatternCycle::~PatternCycle()
+{
+}
+
+void PatternCycle::setDirection(int direction)
+{
+	this->direction = abs(direction);
+}
+
+void PatternCycle::reset()
+{
+	step = 0;
+	tempStep = 0;
+	direction = 1;
+}
+
+void PatternCycle::goToNextStep()
+{
+	if (size >= 1) {
+		int nextStep = tempStep + direction;
+
+		if (range > 0 && size > 0) {
+			if (nextStep >= size) {
+				step = (step + 1) % range;
+			}
+			tempStep = (tempStep + direction) % size;
+		}
+	} else {
+		step = 0;
+		tempStep = 0;
+	}
+}

src/modarpeggiator/common/pattern.hpp

@@ -0,0 +1,93 @@
+#ifndef _H_PATTERN_
+#define _H_PATTERN_
+
+#include <stdlib.h>
+#include <time.h>
+
+class Pattern {
+
+enum {
+	ARP_UP = 0,
+	ARP_DOWN
+};
+
+public:
+	Pattern();
+	virtual ~Pattern();
+	void setPatternSize(int size);
+	void setStep(int step);
+	void setCycleRange(int range);
+	int getSize();
+	int getStepSize();
+	int getStep();
+	int getDirection();
+	virtual void setDirection(int direction) = 0;
+	virtual void reset() = 0;
+	virtual void goToNextStep() = 0;
+protected:
+	int size;
+	int step;
+	int direction;
+	int range;
+};
+
+class PatternUp : public Pattern {
+public:
+	PatternUp();
+	~PatternUp();
+	void setDirection(int direction) override;
+	void reset() override;
+	void goToNextStep() override;
+};
+
+class PatternDown : public Pattern {
+public:
+	PatternDown();
+	~PatternDown();
+	void setDirection(int direction) override;
+	void reset() override;
+	void goToNextStep() override;
+};
+
+class PatternUpDown : public Pattern {
+public:
+	PatternUpDown();
+	~PatternUpDown();
+	void setDirection(int direction) override;
+	void reset() override;
+	void goToNextStep() override;
+};
+
+class PatternUpDownAlt : public Pattern {
+public:
+	PatternUpDownAlt();
+	~PatternUpDownAlt();
+	void setDirection(int direction) override;
+	void reset() override;
+	void goToNextStep() override;
+private:
+	bool checked;
+	bool skip;
+};
+
+class PatternRandom : public Pattern {
+public:
+	PatternRandom();
+	~PatternRandom();
+	void setDirection(int direction) override;
+	void reset() override;
+	void goToNextStep() override;
+};
+
+class PatternCycle : public Pattern {
+public:
+	PatternCycle();
+	~PatternCycle();
+	void setDirection(int direction) override;
+	void reset() override;
+	void goToNextStep() override;
+private:
+	int tempStep;
+};
+
+#endif // _H_PATTERN_

src/modarpeggiator/plugin.cpp

@@ -0,0 +1,339 @@
+#include "plugin.hpp"
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+
+PluginArpeggiator::PluginArpeggiator() :
+	Plugin(paramCount, 0, 0),  // paramCount params, 0 program(s), 0 states
+	syncMode(1)
+{
+	arpeggiator.transmitHostInfo(0, 4, 1, 1, 120.0);
+	arpeggiator.setSampleRate(static_cast<float>(getSampleRate()));
+	arpeggiator.setDivision(7);
+}
+
+// -----------------------------------------------------------------------
+// Init
+
+void PluginArpeggiator::initParameter(uint32_t index, Parameter& parameter)
+{
+	if (index >= paramCount) return;
+
+	switch (index) {
+		case paramSyncMode:
+			parameter.hints = kParameterIsAutomable | kParameterIsInteger;
+			parameter.name = "Sync";
+			parameter.symbol = "sync";
+			parameter.ranges.def = 0;
+			parameter.ranges.min = 0;
+			parameter.ranges.max = 2;
+			parameter.enumValues.count = 3;
+			parameter.enumValues.restrictedMode = true;
+			{
+				ParameterEnumerationValue* const channels = new ParameterEnumerationValue[13];
+				parameter.enumValues.values = channels;
+				channels[0].label = "Free Running";
+				channels[0].value = 0;
+				channels[1].label = "Host Sync";
+				channels[1].value = 1;
+				channels[2].label = "Host Sync (Quantized Start)";
+				channels[2].value = 2;
+			}
+			break;
+		case paramBpm:
+			parameter.hints = kParameterIsAutomable;
+			parameter.name = "Bpm";
+			parameter.symbol = "Bpm";
+			parameter.ranges.def = 120.f;
+			parameter.ranges.min = 20.f;
+			parameter.ranges.max = 280.f;
+			break;
+		case paramDivision:
+			parameter.hints = kParameterIsAutomable | kParameterIsInteger;
+			parameter.name = "Divison";
+			parameter.symbol = "Divisons";
+			parameter.ranges.def = 9;
+			parameter.ranges.min = 0;
+			parameter.ranges.max = 12;
+			parameter.enumValues.count = 13;
+			parameter.enumValues.restrictedMode = true;
+			{
+				ParameterEnumerationValue* const channels = new ParameterEnumerationValue[13];
+				parameter.enumValues.values = channels;
+				channels[0].label = "1/1";
+				channels[0].value = 0;
+				channels[1].label = "1/2";
+				channels[1].value = 1;
+				channels[2].label = "1/3";
+				channels[2].value = 2;
+				channels[3].label = "1/4";
+				channels[3].value = 3;
+				channels[4].label = "1/4.";
+				channels[4].value = 4;
+				channels[5].label = "1/4T";
+				channels[5].value = 5;
+				channels[6].label = "1/8";
+				channels[6].value = 6;
+				channels[7].label = "1/8.";
+				channels[7].value = 7;
+				channels[8].label = "1/8T";
+				channels[8].value = 8;
+				channels[9].label = "1/16";
+				channels[9].value = 9;
+				channels[10].label = "1/16.";
+				channels[10].value = 10;
+				channels[11].label = "1/16T";
+				channels[11].value = 11;
+				channels[12].label = "1/32";
+				channels[12].value = 12;
+			}
+			break;
+		case paramVelocity:
+			parameter.hints = kParameterIsAutomable | kParameterIsInteger;
+			parameter.name = "Velocity";
+			parameter.symbol = "velocity";
+			parameter.ranges.def = 0;
+			parameter.ranges.min = 0;
+			parameter.ranges.max = 127;
+			break;
+		case paramNoteLength:
+			parameter.hints      = kParameterIsAutomable;
+			parameter.name       = "Note Length";
+			parameter.symbol     = "noteLength";
+			parameter.unit       = "";
+			parameter.ranges.def = 0.f;
+			parameter.ranges.min = 0.f;
+			parameter.ranges.max = 1.f;
+			break;
+		case paramOctaveSpread:
+			parameter.hints = kParameterIsAutomable | kParameterIsInteger;
+			parameter.name = "Octave Spread";
+			parameter.symbol = "octaveSpread";
+			parameter.ranges.def = 0;
+			parameter.ranges.min = 0;
+			parameter.ranges.max = 3;
+			parameter.enumValues.count = 4;
+			parameter.enumValues.restrictedMode = true;
+			{
+				ParameterEnumerationValue* const channels = new ParameterEnumerationValue[4];
+				parameter.enumValues.values = channels;
+				channels[0].label = "1 oct";
+				channels[0].value = 0;
+				channels[1].label = "2 oct";
+				channels[1].value = 1;
+				channels[2].label = "3 oct";
+				channels[2].value = 2;
+				channels[3].label = "4 oct";
+				channels[3].value = 3;
+			}
+			break;
+		case paramArpMode:
+			parameter.hints = kParameterIsAutomable | kParameterIsInteger;
+			parameter.name = "Arp Mode";
+			parameter.symbol = "arpMode";
+			parameter.ranges.def = 0;
+			parameter.ranges.min = 0;
+			parameter.ranges.max = 5;
+			parameter.enumValues.count = 6;
+			parameter.enumValues.restrictedMode = true;
+			{
+				ParameterEnumerationValue* const channels = new ParameterEnumerationValue[6];
+				parameter.enumValues.values = channels;
+				channels[0].label = "Up";
+				channels[0].value = 0;
+				channels[1].label = "Down";
+				channels[1].value = 1;
+				channels[2].label = "Up-Down";
+				channels[2].value = 2;
+				channels[3].label = "Up-Down (alt)";
+				channels[3].value = 3;
+				channels[4].label = "Played";
+				channels[4].value = 4;
+				channels[5].label = "Random";
+				channels[5].value = 5;
+			}
+			break;
+		case paramOctaveMode:
+			parameter.hints = kParameterIsAutomable | kParameterIsInteger;
+			parameter.name = "Octave Mode";
+			parameter.symbol = "octaveMode";
+			parameter.ranges.def = 0;
+			parameter.ranges.min = 0;
+			parameter.ranges.max = 4;
+			parameter.enumValues.count = 5;
+			parameter.enumValues.restrictedMode = true;
+			{
+				ParameterEnumerationValue* const channels = new ParameterEnumerationValue[5];
+				parameter.enumValues.values = channels;
+				channels[0].label = "Up";
+				channels[0].value = 0;
+				channels[1].label = "Down";
+				channels[1].value = 1;
+				channels[2].label = "Up-Down";
+				channels[2].value = 2;
+				channels[3].label = "Down-up";
+				channels[3].value = 3;
+				channels[4].label = "1 Up / Cycle";
+				channels[4].value = 4;
+			}
+			break;
+		case paramLatch:
+			parameter.hints      = kParameterIsAutomable | kParameterIsBoolean;
+			parameter.name       = "Latch";
+			parameter.symbol     = "latch";
+			parameter.unit       = "";
+			parameter.ranges.def = 0.f;
+			parameter.ranges.min = 0.f;
+			parameter.ranges.max = 1.f;
+			break;
+		case paramPanic:
+			parameter.hints      = kParameterIsAutomable | kParameterIsTrigger;
+			parameter.name       = "Panic";
+			parameter.symbol     = "Panic";
+			parameter.unit       = "";
+			parameter.ranges.def = 0;
+			parameter.ranges.min = 0;
+			parameter.ranges.max = 1;
+			break;
+		case paramEnabled:
+			parameter.hints      = kParameterIsBoolean;
+			parameter.name       = "Enabled";
+			parameter.symbol     = "enabled";
+			parameter.unit       = "";
+			parameter.ranges.def = 1.f;
+			parameter.ranges.min = 0.f;
+			parameter.ranges.max = 1.f;
+			break;
+	}
+}
+
+// -----------------------------------------------------------------------
+// Internal data
+
+/**
+Optional callback to inform the plugin about a sample rate change.
+*/
+void PluginArpeggiator::sampleRateChanged(double newSampleRate)
+{
+	(void) newSampleRate;
+
+	arpeggiator.setSampleRate(static_cast<float>(newSampleRate));
+}
+
+/**
+Get the current value of a parameter.
+*/
+float PluginArpeggiator::getParameterValue(uint32_t index) const
+{
+	switch (index)
+	{
+		case paramSyncMode:
+			return arpeggiator.getSyncMode();
+		case paramBpm:
+			return arpeggiator.getBpm();
+		case paramDivision:
+			return arpeggiator.getDivision();
+		case paramVelocity:
+			return arpeggiator.getVelocity();
+		case paramNoteLength:
+			return arpeggiator.getNoteLength();
+		case paramOctaveSpread:
+			return arpeggiator.getOctaveSpread();
+		case paramArpMode:
+			return arpeggiator.getArpMode();
+		case paramOctaveMode:
+			return arpeggiator.getOctaveMode();
+		case paramLatch:
+			return arpeggiator.getLatchMode();
+		case paramPanic:
+			return arpeggiator.getPanic();
+		case paramEnabled:
+			return arpeggiator.getArpEnabled();
+	}
+}
+
+/**
+Change a parameter value.
+*/
+void PluginArpeggiator::setParameterValue(uint32_t index, float value)
+{
+	switch (index)
+	{
+		case paramSyncMode:
+			syncMode = static_cast<int>(value);
+			break;
+		case paramBpm:
+			arpeggiator.setBpm(value);
+			break;
+		case paramDivision:
+			arpeggiator.setDivision(static_cast<int>(value));
+			break;
+		case paramVelocity:
+			arpeggiator.setVelocity(static_cast<int>(value));
+			break;
+		case paramNoteLength:
+			arpeggiator.setNoteLength(value);
+			break;
+		case paramOctaveSpread:
+			arpeggiator.setOctaveSpread(static_cast<int>(value));
+			break;
+		case paramArpMode:
+			arpeggiator.setArpMode(static_cast<int>(value));
+			break;
+		case paramOctaveMode:
+			arpeggiator.setOctaveMode(static_cast<int>(value));
+			break;
+		case paramLatch:
+			arpeggiator.setLatchMode(static_cast<bool>(value));
+			break;
+		case paramPanic:
+			arpeggiator.setPanic(static_cast<bool>(value));
+			break;
+		case paramEnabled:
+			arpeggiator.setArpEnabled(static_cast<bool>(value));
+			break;
+	}
+}
+
+// -----------------------------------------------------------------------
+// Process
+
+void PluginArpeggiator::activate()
+{
+	// plugin is activated
+}
+
+void PluginArpeggiator::run(const float**, float**, uint32_t n_frames,
+		const MidiEvent* events, uint32_t eventCount)
+{
+	arpeggiator.emptyMidiBuffer();
+
+	// Check if host supports Bar-Beat-Tick position
+	const TimePosition& position = getTimePosition();
+	if (!position.bbt.valid) {
+		// set-arpeggiator in free running mode
+		arpeggiator.setSyncMode(0);
+	} else {
+		arpeggiator.setSyncMode(syncMode);
+		arpeggiator.transmitHostInfo(position.playing, position.bbt.beatsPerBar, position.bbt.beat, position.bbt.barBeat, static_cast<float>(position.bbt.beatsPerMinute));
+	}
+
+	arpeggiator.process(events, eventCount, n_frames);
+
+	struct MidiBuffer buffer = arpeggiator.getMidiBuffer();
+	for (unsigned x = 0; x < buffer.numBufferedEvents + buffer.numBufferedThroughEvents; x++) {
+		writeMidiEvent(buffer.bufferedEvents[x]); //needs to be one struct or array?
+	}
+}
+
+// -----------------------------------------------------------------------
+
+Plugin* createPlugin()
+{
+	return new PluginArpeggiator();
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO

src/modarpeggiator/plugin.hpp

@@ -0,0 +1,104 @@
+#ifndef _H_PLUGIN_ARPEGGIATOR_
+#define _H_PLUGIN_ARPEGGIATOR_
+
+#include "arpeggiator.hpp"
+#include "common/commons.h"
+#include "common/clock.hpp"
+#include "common/pattern.hpp"
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+
+class PluginArpeggiator : public Plugin {
+public:
+	enum Parameters {
+		paramSyncMode = 0,
+		paramBpm,
+		paramDivision,
+		paramVelocity,
+		paramNoteLength,
+		paramOctaveSpread,
+		paramArpMode,
+		paramOctaveMode,
+		paramLatch,
+		paramPanic,
+		paramEnabled,
+		paramCount
+	};
+
+	PluginArpeggiator();
+
+protected:
+	// -------------------------------------------------------------------
+	// Information
+
+	const char* getLabel() const noexcept override {
+		return "Arpeggiator";
+	}
+
+	const char* getDescription() const override {
+		return "A MIDI arpeggiator";
+	}
+
+	const char* getMaker() const noexcept override {
+		return "MOD";
+	}
+
+	const char* getHomePage() const override {
+		return "";
+	}
+
+	const char* getLicense() const noexcept override {
+		return "https://spdx.org/licenses/GPL-2.0-or-later";
+	}
+
+	uint32_t getVersion() const noexcept override {
+		return d_version(1, 1, 2);
+	}
+
+	int64_t getUniqueId() const noexcept override {
+		return d_cconst('M', 'O', 'A', 'P');
+	}
+
+	// -------------------------------------------------------------------
+	// Init
+
+	void initParameter(uint32_t index, Parameter& parameter) override;
+
+	// -------------------------------------------------------------------
+	// Internal data
+
+	float getParameterValue(uint32_t index) const override;
+	void setParameterValue(uint32_t index, float value) override;
+
+	// -------------------------------------------------------------------
+	// Optional
+
+	// Optional callback to inform the plugin about a sample rate change.
+	void sampleRateChanged(double newSampleRate) override;
+
+	// -------------------------------------------------------------------
+	// Process
+
+	void activate() override;
+
+	void run(const float**, float**, uint32_t,
+			const MidiEvent* midiEvents, uint32_t midiEventCount) override;
+
+
+	// -------------------------------------------------------------------
+
+private:
+	Arpeggiator arpeggiator;
+	float fParams[paramCount];
+	int syncMode;
+
+	DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(PluginArpeggiator)
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
+
+#endif  //_H_PLUGIN_ARPEGGIATOR_

src/modarpeggiator/utils.cpp

@@ -0,0 +1,43 @@
+#include "utils.hpp"
+
+ArpUtils::ArpUtils()
+{
+
+}
+
+ArpUtils::~ArpUtils()
+{
+
+}
+
+void ArpUtils::swap(uint8_t *a, uint8_t *b)
+{
+	int temp = *a;
+	*a = *b;
+	*b = temp;
+}
+
+//got the code for the quick sort algorithm here https://medium.com/human-in-a-machine-world/quicksort-the-best-sorting-algorithm-6ab461b5a9d0
+void ArpUtils::quicksort(uint8_t arr[][2], int l, int r)
+{
+	if (l >= r)
+	{
+		return;
+	}
+
+	int pivot = arr[r][0];
+
+	int cnt = l;
+
+	for (int i = l; i <= r; i++)
+	{
+		if (arr[i][0] <= pivot)
+		{
+			swap(&arr[cnt][0], &arr[i][0]);
+			swap(&arr[cnt][1], &arr[i][1]);
+			cnt++;
+		}
+	}
+	quicksort(arr, l, cnt-2);
+	quicksort(arr, cnt, r);
+}

src/modarpeggiator/utils.hpp

@@ -0,0 +1,15 @@
+#ifndef _H_UTILS_
+#define _H_UTILS_
+
+#include <cstdint>
+
+class ArpUtils {
+public:
+	ArpUtils();
+	~ArpUtils();
+	void quicksort(uint8_t arr[][2], int l, int r);
+private:
+	void swap(uint8_t *a, uint8_t *b);
+};
+
+#endif //_H_UTILS_

src/mverb/MVerb.h

@@ -0,0 +1,842 @@
+//	Copyright (c) 2010 Martin Eastwood
+//  This code is distributed under the terms of the GNU General Public License
+
+//  MVerb is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  at your option) any later version.
+//
+//  MVerb is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this MVerb.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef _EMVERB_H
+#define _EMVERB_H
+
+#include <cmath>
+#include <cstring>
+
+//forward declaration
+template<typename T, int maxLength> class Allpass;
+template<typename T, int maxLength> class StaticAllpassFourTap;
+template<typename T, int maxLength> class StaticDelayLine;
+template<typename T, int maxLength> class StaticDelayLineFourTap;
+template<typename T, int maxLength> class StaticDelayLineEightTap;
+template<typename T, int OverSampleCount> class StateVariable;
+
+template<typename T>
+class MVerb
+{
+private:
+    Allpass<T, 96000> allpass[4];
+    StaticAllpassFourTap<T, 96000> allpassFourTap[4];
+    StateVariable<T,4> bandwidthFilter[2];
+    StateVariable<T,4> damping[2];
+    StaticDelayLine<T, 96000> predelay;
+    StaticDelayLineFourTap<T, 96000> staticDelayLine[4];
+    StaticDelayLineEightTap<T, 96000> earlyReflectionsDelayLine[2];
+    T SampleRate, DampingFreq, Density1, Density2, BandwidthFreq, PreDelayTime, Decay, Gain, Mix, EarlyMix, Size;
+    T MixSmooth, EarlyLateSmooth, BandwidthSmooth, DampingSmooth, PredelaySmooth, SizeSmooth, DensitySmooth, DecaySmooth;
+    T PreviousLeftTank, PreviousRightTank;
+    int ControlRate, ControlRateCounter;
+
+public:
+    enum
+    {
+        DAMPINGFREQ=0,
+        DENSITY,
+        BANDWIDTHFREQ,
+        DECAY,
+        PREDELAY,
+        SIZE,
+        GAIN,
+        MIX,
+        EARLYMIX,
+        NUM_PARAMS
+    };
+
+    MVerb(){
+        DampingFreq = 0.9;
+        BandwidthFreq = 0.9;
+        SampleRate = 44100.;
+        Decay = 0.5;
+        Gain = 1.;
+        Mix = 1.;
+        Size = 1.;
+        EarlyMix = 1.;
+        PreviousLeftTank = 0.;
+        PreviousRightTank = 0.;
+        PreDelayTime = 100 * (SampleRate / 1000);
+        MixSmooth = EarlyLateSmooth = BandwidthSmooth = DampingSmooth = PredelaySmooth = SizeSmooth = DecaySmooth = DensitySmooth = 0.;
+        ControlRate = SampleRate / 1000;
+        ControlRateCounter = 0;
+        reset();
+    }
+
+    ~MVerb(){
+        //nowt to do here
+    }
+
+    void process(const T **inputs, T **outputs, int sampleFrames){
+        T OneOverSampleFrames = 1. / sampleFrames;
+        T MixDelta	= (Mix - MixSmooth) * OneOverSampleFrames;
+        T EarlyLateDelta = (EarlyMix - EarlyLateSmooth) * OneOverSampleFrames;
+        T BandwidthDelta = (((BandwidthFreq * 18400.) + 100.) - BandwidthSmooth) * OneOverSampleFrames;
+        T DampingDelta = (((DampingFreq * 18400.) + 100.) - DampingSmooth) * OneOverSampleFrames;
+        T PredelayDelta = ((PreDelayTime * 200 * (SampleRate / 1000)) - PredelaySmooth) * OneOverSampleFrames;
+        T SizeDelta	= (Size - SizeSmooth) * OneOverSampleFrames;
+        T DecayDelta = (((0.7995f * Decay) + 0.005) - DecaySmooth) * OneOverSampleFrames;
+        T DensityDelta = (((0.7995f * Density1) + 0.005) - DensitySmooth) * OneOverSampleFrames;
+        for(int i=0;i<sampleFrames;++i){
+            T left = inputs[0][i];
+            T right = inputs[1][i];
+            MixSmooth += MixDelta;
+            EarlyLateSmooth += EarlyLateDelta;
+            BandwidthSmooth += BandwidthDelta;
+            DampingSmooth += DampingDelta;
+            PredelaySmooth += PredelayDelta;
+            SizeSmooth += SizeDelta;
+            DecaySmooth += DecayDelta;
+            DensitySmooth += DensityDelta;
+            if (ControlRateCounter >= ControlRate){
+                ControlRateCounter = 0;
+                bandwidthFilter[0].Frequency(BandwidthSmooth);
+                bandwidthFilter[1].Frequency(BandwidthSmooth);
+                damping[0].Frequency(DampingSmooth);
+                damping[1].Frequency(DampingSmooth);
+            }
+            ++ControlRateCounter;
+            predelay.SetLength(PredelaySmooth);
+            Density2 = DecaySmooth + 0.15;
+            if (Density2 > 0.5)
+                Density2 = 0.5;
+            if (Density2 < 0.25)
+                Density2 = 0.25;
+            allpassFourTap[1].SetFeedback(Density2);
+            allpassFourTap[3].SetFeedback(Density2);
+            allpassFourTap[0].SetFeedback(Density1);
+            allpassFourTap[2].SetFeedback(Density1);
+            T bandwidthLeft = bandwidthFilter[0](left) ;
+            T bandwidthRight = bandwidthFilter[1](right) ;
+            T earlyReflectionsL = earlyReflectionsDelayLine[0] ( bandwidthLeft * 0.5 + bandwidthRight * 0.3 )
+                    + earlyReflectionsDelayLine[0].GetIndex(2) * 0.6
+                    + earlyReflectionsDelayLine[0].GetIndex(3) * 0.4
+                    + earlyReflectionsDelayLine[0].GetIndex(4) * 0.3
+                    + earlyReflectionsDelayLine[0].GetIndex(5) * 0.3
+                    + earlyReflectionsDelayLine[0].GetIndex(6) * 0.1
+                    + earlyReflectionsDelayLine[0].GetIndex(7) * 0.1
+                    + ( bandwidthLeft * 0.4 + bandwidthRight * 0.2 ) * 0.5 ;
+            T earlyReflectionsR = earlyReflectionsDelayLine[1] ( bandwidthLeft * 0.3 + bandwidthRight * 0.5 )
+                    + earlyReflectionsDelayLine[1].GetIndex(2) * 0.6
+                    + earlyReflectionsDelayLine[1].GetIndex(3) * 0.4
+                    + earlyReflectionsDelayLine[1].GetIndex(4) * 0.3
+                    + earlyReflectionsDelayLine[1].GetIndex(5) * 0.3
+                    + earlyReflectionsDelayLine[1].GetIndex(6) * 0.1
+                    + earlyReflectionsDelayLine[1].GetIndex(7) * 0.1
+                    + ( bandwidthLeft * 0.2 + bandwidthRight * 0.4 ) * 0.5 ;
+            T predelayMonoInput = predelay(( bandwidthRight + bandwidthLeft ) * 0.5f);
+            T smearedInput = predelayMonoInput;
+            for(int j=0;j<4;j++)
+                smearedInput = allpass[j] ( smearedInput );
+            T leftTank = allpassFourTap[0] ( smearedInput + PreviousRightTank ) ;
+            leftTank = staticDelayLine[0] (leftTank);
+            leftTank = damping[0](leftTank);
+            leftTank = allpassFourTap[1](leftTank);
+            leftTank = staticDelayLine[1](leftTank);
+            T rightTank = allpassFourTap[2] (smearedInput + PreviousLeftTank) ;
+            rightTank = staticDelayLine[2](rightTank);
+            rightTank = damping[1] (rightTank);
+            rightTank = allpassFourTap[3](rightTank);
+            rightTank = staticDelayLine[3](rightTank);
+            PreviousLeftTank = leftTank * DecaySmooth;
+            PreviousRightTank = rightTank * DecaySmooth;
+            T accumulatorL = (0.6*staticDelayLine[2].GetIndex(1))
+                    +(0.6*staticDelayLine[2].GetIndex(2))
+                    -(0.6*allpassFourTap[3].GetIndex(1))
+                    +(0.6*staticDelayLine[3].GetIndex(1))
+                    -(0.6*staticDelayLine[0].GetIndex(1))
+                    -(0.6*allpassFourTap[1].GetIndex(1))
+                    -(0.6*staticDelayLine[1].GetIndex(1));
+            T accumulatorR = (0.6*staticDelayLine[0].GetIndex(2))
+                    +(0.6*staticDelayLine[0].GetIndex(3))
+                    -(0.6*allpassFourTap[1].GetIndex(2))
+                    +(0.6*staticDelayLine[1].GetIndex(2))
+                    -(0.6*staticDelayLine[2].GetIndex(3))
+                    -(0.6*allpassFourTap[3].GetIndex(2))
+                    -(0.6*staticDelayLine[3].GetIndex(2));
+            accumulatorL = ((accumulatorL * EarlyMix) + ((1 - EarlyMix) * earlyReflectionsL));
+            accumulatorR = ((accumulatorR * EarlyMix) + ((1 - EarlyMix) * earlyReflectionsR));
+            left = ( left + MixSmooth * ( accumulatorL - left ) ) * Gain;
+            right = ( right + MixSmooth * ( accumulatorR - right ) ) * Gain;
+            outputs[0][i] = left;
+            outputs[1][i] = right;
+        }
+    }
+
+    void reset(){
+        ControlRateCounter = 0;
+        bandwidthFilter[0].SetSampleRate (SampleRate );
+        bandwidthFilter[1].SetSampleRate (SampleRate );
+        bandwidthFilter[0].Reset();
+        bandwidthFilter[1].Reset();
+        damping[0].SetSampleRate (SampleRate );
+        damping[1].SetSampleRate (SampleRate );
+        damping[0].Reset();
+        damping[1].Reset();
+        predelay.Clear();
+        predelay.SetLength(PreDelayTime);
+        allpass[0].Clear();
+        allpass[1].Clear();
+        allpass[2].Clear();
+        allpass[3].Clear();
+        allpass[0].SetLength (0.0048 * SampleRate);
+        allpass[1].SetLength (0.0036 * SampleRate);
+        allpass[2].SetLength (0.0127 * SampleRate);
+        allpass[3].SetLength (0.0093 * SampleRate);
+        allpass[0].SetFeedback (0.75);
+        allpass[1].SetFeedback (0.75);
+        allpass[2].SetFeedback (0.625);
+        allpass[3].SetFeedback (0.625);
+        allpassFourTap[0].Clear();
+        allpassFourTap[1].Clear();
+        allpassFourTap[2].Clear();
+        allpassFourTap[3].Clear();
+        allpassFourTap[0].SetLength(0.020 * SampleRate * Size);
+        allpassFourTap[1].SetLength(0.060 * SampleRate * Size);
+        allpassFourTap[2].SetLength(0.030 * SampleRate * Size);
+        allpassFourTap[3].SetLength(0.089 * SampleRate * Size);
+        allpassFourTap[0].SetFeedback(Density1);
+        allpassFourTap[1].SetFeedback(Density2);
+        allpassFourTap[2].SetFeedback(Density1);
+        allpassFourTap[3].SetFeedback(Density2);
+        allpassFourTap[0].SetIndex(0,0,0,0);
+        allpassFourTap[1].SetIndex(0,0.006 * SampleRate * Size, 0.041 * SampleRate * Size, 0);
+        allpassFourTap[2].SetIndex(0,0,0,0);
+        allpassFourTap[3].SetIndex(0,0.031 * SampleRate * Size, 0.011 * SampleRate * Size, 0);
+        staticDelayLine[0].Clear();
+        staticDelayLine[1].Clear();
+        staticDelayLine[2].Clear();
+        staticDelayLine[3].Clear();
+        staticDelayLine[0].SetLength(0.15 * SampleRate * Size);
+        staticDelayLine[1].SetLength(0.12 * SampleRate * Size);
+        staticDelayLine[2].SetLength(0.14 * SampleRate * Size);
+        staticDelayLine[3].SetLength(0.11 * SampleRate * Size);
+        staticDelayLine[0].SetIndex(0, 0.067 * SampleRate * Size, 0.011 * SampleRate * Size , 0.121 * SampleRate * Size);
+        staticDelayLine[1].SetIndex(0, 0.036 * SampleRate * Size, 0.089 * SampleRate * Size , 0);
+        staticDelayLine[2].SetIndex(0, 0.0089 * SampleRate * Size, 0.099 * SampleRate * Size , 0);
+        staticDelayLine[3].SetIndex(0, 0.067 * SampleRate * Size, 0.0041 * SampleRate * Size , 0);
+        earlyReflectionsDelayLine[0].Clear();
+        earlyReflectionsDelayLine[1].Clear();
+        earlyReflectionsDelayLine[0].SetLength(0.089 * SampleRate);
+        earlyReflectionsDelayLine[0].SetIndex (0, 0.0199*SampleRate, 0.0219*SampleRate, 0.0354*SampleRate,0.0389*SampleRate, 0.0414*SampleRate, 0.0692*SampleRate, 0);
+        earlyReflectionsDelayLine[1].SetLength(0.069 * SampleRate);
+        earlyReflectionsDelayLine[1].SetIndex (0, 0.0099*SampleRate, 0.011*SampleRate, 0.0182*SampleRate,0.0189*SampleRate, 0.0213*SampleRate, 0.0431*SampleRate, 0);
+    }
+
+    void setParameter(int index, T value){
+        switch(index){
+        case DAMPINGFREQ:
+            DampingFreq =  /* 1. - */ value; // FIXME?
+            break;
+        case DENSITY:
+            Density1 = value;
+            break;
+        case BANDWIDTHFREQ:
+            BandwidthFreq = value;
+            break;
+        case PREDELAY:
+            PreDelayTime = value;
+            break;
+        case SIZE:
+            Size = value;
+            allpassFourTap[0].Clear();
+            allpassFourTap[1].Clear();
+            allpassFourTap[2].Clear();
+            allpassFourTap[3].Clear();
+            allpassFourTap[0].SetLength(0.020 * SampleRate * Size);
+            allpassFourTap[1].SetLength(0.060 * SampleRate * Size);
+            allpassFourTap[2].SetLength(0.030 * SampleRate * Size);
+            allpassFourTap[3].SetLength(0.089 * SampleRate * Size);
+            allpassFourTap[1].SetIndex(0,0.006 * SampleRate * Size, 0.041 * SampleRate * Size, 0);
+            allpassFourTap[3].SetIndex(0,0.031 * SampleRate * Size, 0.011 * SampleRate * Size, 0);
+            staticDelayLine[0].Clear();
+            staticDelayLine[1].Clear();
+            staticDelayLine[2].Clear();
+            staticDelayLine[3].Clear();
+            staticDelayLine[0].SetLength(0.15 * SampleRate * Size);
+            staticDelayLine[1].SetLength(0.12 * SampleRate * Size);
+            staticDelayLine[2].SetLength(0.14 * SampleRate * Size);
+            staticDelayLine[3].SetLength(0.11 * SampleRate * Size);
+            staticDelayLine[0].SetIndex(0, 0.067 * SampleRate * Size, 0.011 * SampleRate * Size , 0.121 * SampleRate * Size);
+            staticDelayLine[1].SetIndex(0, 0.036 * SampleRate * Size, 0.089 * SampleRate * Size , 0);
+            staticDelayLine[2].SetIndex(0, 0.0089 * SampleRate * Size, 0.099 * SampleRate * Size , 0);
+            staticDelayLine[3].SetIndex(0, 0.067 * SampleRate * Size, 0.0041 * SampleRate * Size , 0);
+            break;
+        case DECAY:
+            Decay = value;
+            break;
+        case GAIN:
+            Gain = value;
+            break;
+        case MIX:
+            Mix = value;
+            break;
+        case EARLYMIX:
+            EarlyMix = value;
+            break;
+        }
+    }
+
+    float getParameter(int index) const{
+        switch(index){
+        case DAMPINGFREQ:
+            return DampingFreq;
+            break;
+        case DENSITY:
+            return Density1;
+            break;
+        case BANDWIDTHFREQ:
+            return BandwidthFreq;
+            break;
+        case PREDELAY:
+            return PreDelayTime;
+            break;
+        case SIZE:
+            return Size;
+            break;
+        case DECAY:
+            return Decay;
+            break;
+        case GAIN:
+            return Gain;
+            break;
+        case MIX:
+            return Mix;
+            break;
+        case EARLYMIX:
+            return EarlyMix;
+            break;
+        default: return 0.f;
+            break;
+
+        }
+    }
+
+    void setSampleRate(T sr){
+        SampleRate = sr;
+        ControlRate = SampleRate / 1000;
+        reset();
+    }
+};
+
+
+
+template<typename T, int maxLength>
+class Allpass
+{
+private:
+    T buffer[maxLength];
+    int index;
+    int Length;
+    T Feedback;
+
+public:
+    Allpass()
+    {
+        SetLength ( maxLength - 1 );
+        Clear();
+        Feedback = 0.5;
+    }
+
+    T operator()(T input)
+    {
+        T output;
+        T bufout;
+        bufout = buffer[index];
+        T temp = input * -Feedback;
+        output = bufout + temp;
+        buffer[index] = input + ((bufout+temp)*Feedback);
+        if(++index>=Length) index = 0;
+        return output;
+    }
+
+    void SetLength (int Length)
+    {
+        if( Length >= maxLength )
+            Length = maxLength;
+        if( Length < 0 )
+            Length = 0;
+
+        this->Length = Length;
+    }
+
+    void SetFeedback(T feedback)
+    {
+        Feedback = feedback;
+    }
+
+    void Clear()
+    {
+        std::memset(buffer, 0, sizeof(buffer));
+        index = 0;
+    }
+
+    int GetLength() const
+    {
+        return Length;
+    }
+};
+
+template<typename T, int maxLength>
+class StaticAllpassFourTap
+{
+private:
+    T buffer[maxLength];
+    int index1, index2, index3, index4;
+    int Length;
+    T Feedback;
+
+public:
+    StaticAllpassFourTap()
+    {
+        SetLength ( maxLength - 1 );
+        Clear();
+        Feedback = 0.5;
+    }
+
+    T operator()(T input)
+    {
+        T output;
+        T bufout;
+
+        bufout = buffer[index1];
+        T temp = input * -Feedback;
+        output = bufout + temp;
+        buffer[index1] = input + ((bufout+temp)*Feedback);
+
+        if(++index1>=Length)
+            index1 = 0;
+        if(++index2 >= Length)
+            index2 = 0;
+        if(++index3 >= Length)
+            index3 = 0;
+        if(++index4 >= Length)
+            index4 = 0;
+
+        return output;
+    }
+
+    void SetIndex (int Index1, int Index2, int Index3, int Index4)
+    {
+        index1 = Index1;
+        index2 = Index2;
+        index3 = Index3;
+        index4 = Index4;
+    }
+
+    T GetIndex (int Index)
+    {
+        switch (Index)
+        {
+        case 0:
+            return buffer[index1];
+            break;
+        case 1:
+            return buffer[index2];
+            break;
+        case 2:
+            return buffer[index3];
+            break;
+        case 3:
+            return buffer[index4];
+            break;
+        default:
+            return buffer[index1];
+            break;
+        }
+    }
+
+    void SetLength (int Length)
+    {
+        if( Length >= maxLength )
+            Length = maxLength;
+        if( Length < 0 )
+            Length = 0;
+
+        this->Length = Length;
+    }
+
+
+    void Clear()
+    {
+        std::memset(buffer, 0, sizeof(buffer));
+        index1 = index2  = index3 = index4 = 0;
+    }
+
+    void SetFeedback(T feedback)
+    {
+        Feedback = feedback;
+    }
+
+    int GetLength() const
+    {
+        return Length;
+    }
+};
+
+template<typename T, int maxLength>
+class StaticDelayLine
+{
+private:
+    T buffer[maxLength];
+    int index;
+    int Length;
+    T Feedback;
+
+public:
+    StaticDelayLine()
+    {
+        SetLength ( maxLength - 1 );
+        Clear();
+    }
+
+    T operator()(T input)
+    {
+        T output = buffer[index];
+        buffer[index++] = input;
+        if(index >= Length)
+            index = 0;
+        return output;
+    }
+
+    void SetLength (int Length)
+    {
+        if( Length >= maxLength )
+            Length = maxLength;
+        if( Length < 0 )
+            Length = 0;
+
+        this->Length = Length;
+    }
+
+    void Clear()
+    {
+        std::memset(buffer, 0, sizeof(buffer));
+        index = 0;
+    }
+
+    int GetLength() const
+    {
+        return Length;
+    }
+};
+
+template<typename T, int maxLength>
+class StaticDelayLineFourTap
+{
+private:
+    T buffer[maxLength];
+    int index1, index2, index3, index4;
+    int Length;
+    T Feedback;
+
+public:
+    StaticDelayLineFourTap()
+    {
+        SetLength ( maxLength - 1 );
+        Clear();
+    }
+
+    //get ouput and iterate
+    T operator()(T input)
+    {
+        T output = buffer[index1];
+        buffer[index1++] = input;
+        if(index1 >= Length)
+            index1 = 0;
+        if(++index2 >= Length)
+            index2 = 0;
+        if(++index3 >= Length)
+            index3 = 0;
+        if(++index4 >= Length)
+            index4 = 0;
+        return output;
+    }
+
+    void SetIndex (int Index1, int Index2, int Index3, int Index4)
+    {
+        index1 = Index1;
+        index2 = Index2;
+        index3 = Index3;
+        index4 = Index4;
+    }
+
+
+    T GetIndex (int Index)
+    {
+        switch (Index)
+        {
+        case 0:
+            return buffer[index1];
+            break;
+        case 1:
+            return buffer[index2];
+            break;
+        case 2:
+            return buffer[index3];
+            break;
+        case 3:
+            return buffer[index4];
+            break;
+        default:
+            return buffer[index1];
+            break;
+        }
+    }
+
+
+    void SetLength (int Length)
+    {
+        if( Length >= maxLength )
+            Length = maxLength;
+        if( Length < 0 )
+            Length = 0;
+
+        this->Length = Length;
+    }
+
+
+    void Clear()
+    {
+        std::memset(buffer, 0, sizeof(buffer));
+        index1 = index2  = index3 = index4 = 0;
+    }
+
+
+    int GetLength() const
+    {
+        return Length;
+    }
+};
+
+template<typename T, int maxLength>
+class StaticDelayLineEightTap
+{
+private:
+    T buffer[maxLength];
+    int index1, index2, index3, index4, index5, index6, index7, index8;
+    int Length;
+    T Feedback;
+
+public:
+    StaticDelayLineEightTap()
+    {
+        SetLength ( maxLength - 1 );
+        Clear();
+    }
+
+    //get ouput and iterate
+    T operator()(T input)
+    {
+        T output = buffer[index1];
+        buffer[index1++] = input;
+        if(index1 >= Length)
+            index1 = 0;
+        if(++index2 >= Length)
+            index2 = 0;
+        if(++index3 >= Length)
+            index3 = 0;
+        if(++index4 >= Length)
+            index4 = 0;
+        if(++index5 >= Length)
+            index5 = 0;
+        if(++index6 >= Length)
+            index6 = 0;
+        if(++index7 >= Length)
+            index7 = 0;
+        if(++index8 >= Length)
+            index8 = 0;
+        return output;
+
+    }
+
+    void SetIndex (int Index1, int Index2, int Index3, int Index4, int Index5, int Index6, int Index7, int Index8)
+    {
+        index1 = Index1;
+        index2 = Index2;
+        index3 = Index3;
+        index4 = Index4;
+        index5 = Index5;
+        index6 = Index6;
+        index7 = Index7;
+        index8 = Index8;
+    }
+
+
+    T GetIndex (int Index)
+    {
+        switch (Index)
+        {
+        case 0:
+            return buffer[index1];
+            break;
+        case 1:
+            return buffer[index2];
+            break;
+        case 2:
+            return buffer[index3];
+            break;
+        case 3:
+            return buffer[index4];
+            break;
+        case 4:
+            return buffer[index5];
+            break;
+        case 5:
+            return buffer[index6];
+            break;
+        case 6:
+            return buffer[index7];
+            break;
+        case 7:
+            return buffer[index8];
+            break;
+        default:
+            return buffer[index1];
+            break;
+        }
+    }
+
+    void SetLength (int Length)
+    {
+        if( Length >= maxLength )
+            Length = maxLength;
+        if( Length < 0 )
+            Length = 0;
+
+        this->Length = Length;
+    }
+
+
+    void Clear()
+    {
+        std::memset(buffer, 0, sizeof(buffer));
+        index1 = index2  = index3 = index4 = index5 = index6 = index7 = index8 = 0;
+    }
+
+
+    int GetLength() const
+    {
+        return Length;
+    }
+};
+
+template<typename T, int OverSampleCount>
+class StateVariable
+{
+public:
+
+    enum FilterType
+    {
+        LOWPASS,
+        HIGHPASS,
+        BANDPASS,
+        NOTCH,
+        FilterTypeCount
+    };
+
+private:
+
+    T sampleRate;
+    T frequency;
+    T q;
+    T f;
+
+    T low;
+    T high;
+    T band;
+    T notch;
+
+    T *out;
+
+public:
+    StateVariable()
+    {
+        SetSampleRate(44100.);
+        Frequency(1000.);
+        Resonance(0);
+        Type(LOWPASS);
+        Reset();
+    }
+
+    T operator()(T input)
+    {
+        for(unsigned int i = 0; i < OverSampleCount; i++)
+        {
+            low += f * band + 1e-25;
+            high = input - low - q * band;
+            band += f * high;
+            notch = low + high;
+        }
+        return *out;
+    }
+
+    void Reset()
+    {
+        low = high = band = notch = 0;
+    }
+
+    void SetSampleRate(T sampleRate)
+    {
+        this->sampleRate = sampleRate * OverSampleCount;
+        UpdateCoefficient();
+    }
+
+    void Frequency(T frequency)
+    {
+        this->frequency = frequency;
+        UpdateCoefficient();
+    }
+
+    void Resonance(T resonance)
+    {
+        this->q = 2 - 2 * resonance;
+    }
+
+    void Type(int type)
+    {
+        switch(type)
+        {
+        case LOWPASS:
+            out = &low;
+            break;
+
+        case HIGHPASS:
+            out = &high;
+            break;
+
+        case BANDPASS:
+            out = &band;
+            break;
+
+        case NOTCH:
+            out = &notch;
+            break;
+
+        default:
+            out = &low;
+            break;
+        }
+    }
+
+private:
+    void UpdateCoefficient()
+    {
+        f = 2. * std::sin(PI * frequency / sampleRate);
+    }
+};
+#endif

src/performanceconfig.cpp

@@ -139,6 +139,12 @@ bool CPerformanceConfig::Load (void)
 		PropertyName.Format ("InsertFXParams%u", nTG+1);
 		m_sInsertFXParams[nTG] = m_Properties.GetString (PropertyName, "");
 
+		PropertyName.Format ("MidiFX%u", nTG+1);
+		m_nMidiFX[nTG] = m_Properties.GetNumber (PropertyName, 0);
+
+		PropertyName.Format ("MidiFXParams%u", nTG+1);
+		m_sMidiFXParams[nTG] = m_Properties.GetString (PropertyName, "");
+
 		PropertyName.Format ("Detune%u", nTG+1);
 		m_nDetune[nTG] = m_Properties.GetSignedNumber (PropertyName, 0);
 
@@ -217,6 +223,8 @@ bool CPerformanceConfig::Load (void)
 	m_nReverbDiffusion = m_Properties.GetNumber ("ReverbDiffusion", 65);
 	m_nReverbLevel = m_Properties.GetNumber ("ReverbLevel", 100);
 
+	m_nTempo = m_Properties.GetNumber ("Tempo", 120);
+
 	// Set EFFECT_REVERB as Default for backward compatibility
 	// EFFECT_REVERB 7
 	m_nSendFX = m_Properties.GetNumber ("SendFX", 7);
@@ -274,6 +282,12 @@ bool CPerformanceConfig::Save (void)
 		PropertyName.Format ("InsertFXParams%u", nTG+1);
 		m_Properties.SetString (PropertyName, m_sInsertFXParams[nTG].c_str());
 
+		PropertyName.Format ("MidiFX%u", nTG+1);
+		m_Properties.SetNumber (PropertyName, m_nMidiFX[nTG]);
+
+		PropertyName.Format ("MidiFXParams%u", nTG+1);
+		m_Properties.SetString (PropertyName, m_sMidiFXParams[nTG].c_str());
+
 		PropertyName.Format ("Detune%u", nTG+1);
 		m_Properties.SetSignedNumber (PropertyName, m_nDetune[nTG]);
 
@@ -395,6 +409,8 @@ bool CPerformanceConfig::Save (void)
 		tokens.shrink_to_fit();
 	}
 	
+	m_Properties.SetNumber ("Tempo", m_nTempo);
+
 	return m_Properties.Save ();
 }
 
@@ -437,21 +453,19 @@ unsigned CPerformanceConfig::GetInsertFX (unsigned nTG) const
 std::vector<unsigned> CPerformanceConfig::GetInsertFXParams (unsigned nTG) const
 {
 	assert (nTG < CConfig::ToneGenerators);
+	return StringToVector(m_sInsertFXParams[nTG]);
+}
 
-	std::vector<unsigned> tokens;
+unsigned CPerformanceConfig::GetMidiFX (unsigned nTG) const
-	std::string params = m_sInsertFXParams[nTG];
+{
-	if (params.empty()) {
+	assert (nTG < CConfig::ToneGenerators);
-		return tokens; 
+	return m_nMidiFX[nTG];
-	}
+}
 
-	char delimiter = ',';
+std::vector<unsigned> CPerformanceConfig::GetMidiFXParams (unsigned nTG) const
-	std::stringstream ss(params);
+{
-	std::string temp;
+	assert (nTG < CConfig::ToneGenerators);
-	while (getline(ss, temp, delimiter))
+	return StringToVector(m_sMidiFXParams[nTG]);
-	{
-		tokens.push_back(stoi(temp));
-	}
-	return tokens;
 }
 
 int CPerformanceConfig::GetDetune (unsigned nTG) const
@@ -535,16 +549,19 @@ void CPerformanceConfig::SetInsertFX (unsigned nValue, unsigned nTG)
 void CPerformanceConfig::SetInsertFXParams (std::vector<unsigned> pParams, unsigned nTG)
 {
 	assert (nTG < CConfig::ToneGenerators);
+	m_sInsertFXParams[nTG] = VectorToString(pParams);
+}
 
-	std::string params = "";
+void CPerformanceConfig::SetMidiFX (unsigned nValue, unsigned nTG)
-	for (size_t i = 0; i < pParams.size(); i++)
+{
-	{
+	assert (nTG < CConfig::ToneGenerators);
-		if (i != 0) {
+	m_nMidiFX[nTG] = nValue;
-			params += ",";
+}
-		}
+
-		params += std::to_string(pParams[i]);
+void CPerformanceConfig::SetMidiFXParams (std::vector<unsigned> pParams, unsigned nTG)
-	}
+{
-	m_sInsertFXParams[nTG] = params;
+	assert (nTG < CConfig::ToneGenerators);
+	m_sMidiFXParams[nTG] = VectorToString(pParams);
 }
 
 void CPerformanceConfig::SetDetune (int nValue, unsigned nTG)
@@ -601,20 +618,7 @@ unsigned CPerformanceConfig::GetSendFX (void) const
 
 std::vector<unsigned> CPerformanceConfig::GetSendFXParams (void) const
 {
-	std::vector<unsigned> tokens;
+	return StringToVector(m_sSendFXParams);
-	std::string params = m_sSendFXParams;
-	if (params.empty()) {
-		return tokens; 
-	}
-
-	char delimiter = ',';
-	std::stringstream ss(params);
-	std::string temp;
-	while (getline(ss, temp, delimiter))
-	{
-		tokens.push_back(stoi(temp));
-	}
-	return tokens;
 }
 
 unsigned CPerformanceConfig::GetSendFXLevel (void) const
@@ -658,6 +662,11 @@ unsigned CPerformanceConfig::GetReverbLevel (void) const
 	return m_nReverbLevel;
 }
 
+unsigned CPerformanceConfig::GetTempo (void) const
+{
+	return m_nTempo;
+}
+
 void CPerformanceConfig::SetCompressorEnable (bool bValue)
 {
 	m_bCompressorEnable = bValue;
@@ -670,15 +679,7 @@ void CPerformanceConfig::SetSendFX (unsigned nValue)
 
 void CPerformanceConfig::SetSendFXParams (std::vector<unsigned> pParams)
 {
-	std::string params = "";
+	m_sSendFXParams = VectorToString(pParams);
-	for (size_t i = 0; i < pParams.size(); i++)
-	{
-		if (i != 0) {
-			params += ",";
-		}
-		params += std::to_string(pParams[i]);
-	}
-	m_sSendFXParams = params;
 }
 
 void CPerformanceConfig::SetSendFXLevel (unsigned nValue)
@@ -720,6 +721,12 @@ void CPerformanceConfig::SetReverbLevel (unsigned nValue)
 {
 	m_nReverbLevel = nValue;
 }
+
+void CPerformanceConfig::SetTempo (unsigned nValue)
+{
+	m_nTempo = nValue;
+}
+
 // Pitch bender and portamento:
 void CPerformanceConfig::SetPitchBendRange (unsigned nValue, unsigned nTG)
 {
@@ -1490,3 +1497,34 @@ bool CPerformanceConfig::IsValidPerformanceBank(unsigned nBankID)
 	}
 	return true;
 }
+
+std::string CPerformanceConfig::VectorToString (std::vector<unsigned> pParams)
+{
+	std::string params = "";
+	for (size_t i = 0; i < pParams.size(); i++)
+	{
+		if (i != 0) {
+			params += ",";
+		}
+		params += std::to_string(pParams[i]);
+	}
+	return params;
+}
+
+std::vector<unsigned> CPerformanceConfig::StringToVector (std::string sParams) const
+{
+	std::vector<unsigned> tokens;
+	if (sParams.empty()) {
+		return tokens; 
+	}
+
+	char delimiter = ',';
+	std::stringstream ss(sParams);
+	std::string temp;
+	while (getline(ss, temp, delimiter))
+	{
+		tokens.push_back(stoi(temp));
+	}
+	return tokens;
+}
+

src/performanceconfig.h

@@ -51,6 +51,8 @@ public:
 	unsigned GetPan (unsigned nTG) const;			// 0 .. 127
 	unsigned GetInsertFX (unsigned nTG) const;		// 0 .. X
 	std::vector<unsigned> GetInsertFXParams (unsigned nTG) const;
+	unsigned GetMidiFX (unsigned nTG) const;		// 0 .. X
+	std::vector<unsigned> GetMidiFXParams (unsigned nTG) const;
 	int GetDetune (unsigned nTG) const;			// -99 .. 99
 	unsigned GetCutoff (unsigned nTG) const;		// 0 .. 99
 	unsigned GetResonance (unsigned nTG) const;		// 0 .. 99
@@ -81,6 +83,8 @@ public:
 	void SetPan (unsigned nValue, unsigned nTG);
 	void SetInsertFX (unsigned nValue, unsigned nTG);
 	void SetInsertFXParams (std::vector<unsigned> pParams, unsigned nTG);
+	void SetMidiFX (unsigned nValue, unsigned nTG);
+	void SetMidiFXParams (std::vector<unsigned> pParams, unsigned nTG);
 	void SetDetune (int nValue, unsigned nTG);
 	void SetCutoff (unsigned nValue, unsigned nTG);
 	void SetResonance (unsigned nValue, unsigned nTG);
@@ -118,6 +122,7 @@ public:
 	unsigned GetReverbLowPass (void) const;			// 0 .. 99
 	unsigned GetReverbDiffusion (void) const;		// 0 .. 99
 	unsigned GetReverbLevel (void) const;			// 0 .. 99
+	unsigned GetTempo (void) const;
 
 	void SetCompressorEnable (bool bValue);
 	void SetSendFX (unsigned nValue);
@@ -130,6 +135,7 @@ public:
 	void SetReverbLowPass (unsigned nValue);
 	void SetReverbDiffusion (unsigned nValue);
 	void SetReverbLevel (unsigned nValue);
+	void SetTempo (unsigned nValue);
 
 	bool VoiceDataFilled(unsigned nTG);
 	bool ListPerformances(); 
@@ -170,6 +176,8 @@ private:
 	unsigned m_nPan[CConfig::ToneGenerators];
 	unsigned m_nInsertFX[CConfig::ToneGenerators];
 	std::string m_sInsertFXParams[CConfig::ToneGenerators];
+	unsigned m_nMidiFX[CConfig::ToneGenerators];
+	std::string m_sMidiFXParams[CConfig::ToneGenerators];
 	int m_nDetune[CConfig::ToneGenerators];
 	unsigned m_nCutoff[CConfig::ToneGenerators];
 	unsigned m_nResonance[CConfig::ToneGenerators];
@@ -218,6 +226,10 @@ private:
 	unsigned m_nReverbLowPass;
 	unsigned m_nReverbDiffusion;
 	unsigned m_nReverbLevel;
+	unsigned m_nTempo;
+
+	std::string VectorToString (std::vector<unsigned> pParams);
+	std::vector<unsigned> StringToVector (std::string sParams) const;
 };
 
 #endif

src/uimenu.cpp

@@ -35,7 +35,7 @@ LOGMODULE ("uimenu");
 
 const CUIMenu::TMenuItem CUIMenu::s_MenuRoot[] =
 {
-	{"MiniDexed", MenuHandler, s_MainMenu},
+	{"MiniDexed", MainMenuHandler, s_MainMenu},
 	{0}
 };
 
@@ -75,6 +75,7 @@ const CUIMenu::TMenuItem CUIMenu::s_TGMenu[] =
 	{"Portamento",		MenuHandler,		s_EditPortamentoMenu},
 	{"Poly/Mono",		EditTGParameter,	0,	CMiniDexed::TGParameterMonoMode}, 
 	{"Modulation",		MenuHandler,		s_ModulationMenu},
+	{"Midi FX",	MenuHandlerMidiFX},
 	{"Channel",	EditTGParameter,	0,	CMiniDexed::TGParameterMIDIChannel},
 	{"Edit Voice",	MenuHandler,		s_EditVoiceMenu},
 	{0}
@@ -236,6 +237,61 @@ CUIMenu::TMenuItem CUIMenu::s_FXReverb[] =
 	{0}
 };
 
+CUIMenu::TMenuItem CUIMenu::s_FXMVerb[] =
+{
+	{"Bypass", EditTGFXParameter, 0, AudioEffectMVerb::Param::BYPASS},
+	{"Damp Fq", EditTGFXParameter, 0, AudioEffectMVerb::Param::DAMPINGFREQ},
+	{"Density", EditTGFXParameter, 0, AudioEffectMVerb::Param::DENSITY},
+	{"Band Fq", EditTGFXParameter, 0, AudioEffectMVerb::Param::BANDWIDTHFREQ},
+	{"Decay", EditTGFXParameter, 0, AudioEffectMVerb::Param::DECAY},
+	{"Predelay", EditTGFXParameter, 0, AudioEffectMVerb::Param::PREDELAY},
+	{"Size", EditTGFXParameter, 0, AudioEffectMVerb::Param::SIZE},
+	{"Gain", EditTGFXParameter, 0, AudioEffectMVerb::Param::GAIN},
+	{"Mix", EditTGFXParameter, 0, AudioEffectMVerb::Param::MIX},
+	{"Early Mix", EditTGFXParameter, 0, AudioEffectMVerb::Param::EARLYMIX},
+	{0}
+};
+
+CUIMenu::TMenuItem CUIMenu::s_FX3BandEQ[] =
+{
+	{"Bypass", EditTGFXParameter, 0, AudioEffect3BandEQ::Param::BYPASS},
+	{"Low", EditTGFXParameter, 0, AudioEffect3BandEQ::Param::EQ_LOW},
+	{"Mid", EditTGFXParameter, 0, AudioEffect3BandEQ::Param::EQ_MID},
+	{"High", EditTGFXParameter, 0, AudioEffect3BandEQ::Param::EQ_HIGH},
+	{"Master", EditTGFXParameter, 0, AudioEffect3BandEQ::Param::MASTER},
+	{"Low Mid FQ", EditTGFXParameter, 0, AudioEffect3BandEQ::Param::LOW_MID_FQ},
+	{"Mid High FQ", EditTGFXParameter, 0, AudioEffect3BandEQ::Param::MID_HIGH_FQ},
+	{0}
+};
+
+const CUIMenu::TMenuItem CUIMenu::s_MidiFX[] =
+{
+	{"Type:", EditTGParameter2, 0, CMiniDexed::TGParameterMidiFXType},
+	{"Edit:", EditMidiFX},
+	{0}
+};
+
+CUIMenu::TMenuItem CUIMenu::s_MidiFXNone[] =
+{
+	{"None"},
+	{0}
+};
+
+CUIMenu::TMenuItem CUIMenu::s_MidiFXArp[] =
+{
+	{"Bypass", EditTGMidiFXParameter, 0, MidiArp::Param::BYPASS},
+	{"Latch", EditTGMidiFXParameter, 0, MidiArp::Param::LATCH},
+	{"Sync", EditTGMidiFXParameter, 0, MidiArp::Param::SYNC},
+	{"Arp Mode", EditTGMidiFXParameter, 0, MidiArp::Param::ARP_MODE},
+	{"Division", EditTGMidiFXParameter, 0, MidiArp::Param::DIVISION},
+	{"Note Length", EditTGMidiFXParameter, 0, MidiArp::Param::NOTE_LENGTH},
+	{"Velocity", EditTGMidiFXParameter, 0, MidiArp::Param::VELOCITY},
+	{"Oct Spread", EditTGMidiFXParameter, 0, MidiArp::Param::OCTAVE_SPREAD},
+	{"Oct Mode", EditTGMidiFXParameter, 0, MidiArp::Param::OCTAVE_MODE},
+	{"Panic", EditTGMidiFXParameter, 0, MidiArp::Param::PANIC},
+	{0}
+};
+
 // inserting menu items before "OP1" affect OPShortcutHandler()
 const CUIMenu::TMenuItem CUIMenu::s_EditVoiceMenu[] =
 {
@@ -307,7 +363,7 @@ const CUIMenu::TMenuItem CUIMenu::s_SaveMenu[] =
 const CUIMenu::TParameter CUIMenu::s_GlobalParameter[CMiniDexed::ParameterUnknown] =
 {
 	{0,	1,	1,	ToOnOff},		// ParameterCompressorEnable
-	{0,	7, 1, ToFXType}, // ParameterSendFXType
+	{0,	9, 1, ToFXType}, // ParameterSendFXType
 	{0,	100, 1}, // ParameterSendFXLevel
 	{0,	1,	1,	ToOnOff},		// ParameterReverbEnable
 	{0,	99,	1},				// ParameterReverbSize
@@ -330,7 +386,8 @@ const CUIMenu::TParameter CUIMenu::s_TGParameter[CMiniDexed::TGParameterUnknown]
 	{0,	CSysExFileLoader::VoicesPerBank-1,	1},			// TGParameterProgram
 	{0,	127,					8, ToVolume},		// TGParameterVolume
 	{0,	127,					8, ToPan},		// TGParameterPan
-	{0,	7, 1, ToFXType}, // TGParameterInsertFXType
+	{0,	9, 1, ToFXType}, // TGParameterInsertFXType
+	{0,	1, 1, ToMidiFXType}, // TGParameterMidiFXType
 	{-99,	99,					1},			// TGParameterMasterTune
 	{0,	99,					1},			// TGParameterCutoff
 	{0,	99,					1},			// TGParameterResonance
@@ -436,6 +493,48 @@ const CUIMenu::TParameter CUIMenu::s_TGFXReverbParam[AudioEffectPlateReverb::Par
 	{0,	99, 1},	// LEVEL
 };
 
+// must match AudioEffectMVerb::Param
+const CUIMenu::TParameter CUIMenu::s_TGFXMVerbParam[AudioEffectMVerb::Param::UNKNOWN] =
+{
+	{0,	1, 1, ToOnOff}, // BYPASS
+	{0,	100, 1},	// DAMPINGFREQ
+	{0,	100, 1},	// DENSITY
+	{0,	100, 1},	// BANDWIDTHFREQ
+	{0,	100, 1},	// DECAY
+	{0,	100, 1},	// PREDELAY
+	{0,	100, 1},	// SIZE
+	{0,	100, 1},	// GAIN
+	{0,	100, 1, ToMix}, // MIX
+	{0,	100, 1}, // EARLYMIX
+};
+
+// must match AudioEffect3BandEQ::Param
+const CUIMenu::TParameter CUIMenu::s_TGFX3BandEQParam[AudioEffect3BandEQ::Param::UNKNOWN] =
+{
+	{0,	1, 1, ToOnOff}, // BYPASS
+	{0, 100, 1},	// LOW
+	{0, 100, 1},	// MID
+	{0, 100, 1},	// HIGH
+	{0, 100, 1},	// MASTER
+	{0, 1000, 10},	// LOW_MID_FQ
+	{1000,	20000, 10},	// MID_HIGH_FQ
+};
+
+// must match MidiArp::Param
+const CUIMenu::TParameter CUIMenu::s_TGMidiFXArpParam[MidiArp::Param::UNKNOWN] =
+{
+	{0, 1, 1, ToOnOff}, // BYPASS
+	{0, 1, 1, ToOnOff}, // LATCH
+	{0, 2, 1}, // SYNC
+	{0, 5, 1, ToArpMode}, // ARP_MODE
+	{0, 12, 1, ToArpDivision}, // DIVISION
+	{0, 100, 1}, // NOTE_LENGTH
+	{0, 127, 1}, // VELOCITY
+	{1, 4, 1}, // OCTAVE_SPREAD
+	{0, 4, 1, ToArpOctMode}, // OCTAVE_MODE
+	{0, 1, 1, ToOnOff} // PANIC
+};
+
 // must match DexedVoiceParameters in Synth_Dexed
 const CUIMenu::TParameter CUIMenu::s_VoiceParameter[] =
 {
@@ -604,6 +703,81 @@ void CUIMenu::EventHandler (TMenuEvent Event)
 	}
 }
 
+void CUIMenu::MainMenuHandler (CUIMenu *pUIMenu, TMenuEvent Event)
+{
+	bool menuChange = false;
+	switch (Event)
+	{
+	case MenuEventUpdate:
+		break;
+
+	case MenuEventSelect:				// push menu
+		assert (pUIMenu->m_nCurrentMenuDepth < MaxMenuDepth);
+		pUIMenu->m_MenuStackParent[pUIMenu->m_nCurrentMenuDepth] = pUIMenu->m_pParentMenu;
+		pUIMenu->m_MenuStackMenu[pUIMenu->m_nCurrentMenuDepth] = pUIMenu->m_pCurrentMenu;
+		pUIMenu->m_nMenuStackItem[pUIMenu->m_nCurrentMenuDepth]
+			= pUIMenu->m_nCurrentMenuItem;
+		pUIMenu->m_nMenuStackSelection[pUIMenu->m_nCurrentMenuDepth]
+			= pUIMenu->m_nCurrentSelection;
+		pUIMenu->m_nMenuStackParameter[pUIMenu->m_nCurrentMenuDepth]
+			= pUIMenu->m_nCurrentParameter;
+		pUIMenu->m_nCurrentMenuDepth++;
+
+		pUIMenu->m_pParentMenu = pUIMenu->m_pCurrentMenu;
+		pUIMenu->m_nCurrentParameter =
+			pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Parameter;
+		pUIMenu->m_pCurrentMenu =
+			pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].MenuItem;
+		pUIMenu->m_nCurrentMenuItem = pUIMenu->m_nCurrentSelection;
+		pUIMenu->m_nCurrentSelection = 0;
+		menuChange = true;
+		break;
+
+	case MenuEventStepDown:
+		if (pUIMenu->m_nCurrentSelection > 0)
+		{
+			pUIMenu->m_nCurrentSelection--;
+		}
+		break;
+
+	case MenuEventStepUp:
+		++pUIMenu->m_nCurrentSelection;
+		if (!pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Name)  // more entries?
+		{
+			pUIMenu->m_nCurrentSelection--;
+		}
+		break;
+
+	default:
+		return;
+	}
+
+	if (pUIMenu->m_pCurrentMenu)				// if this is another menu?
+	{
+		string strTempo;
+		if (menuChange)
+		{
+			strTempo = "";
+		}
+		else
+		{
+			strTempo = (pUIMenu->m_pMiniDexed->isPlaying() ? ">" : "#") +
+				to_string(pUIMenu->m_pMiniDexed->getTempo());
+		}
+
+		pUIMenu->m_pUI->DisplayWrite (
+			pUIMenu->m_pParentMenu[pUIMenu->m_nCurrentMenuItem].Name,
+			strTempo.c_str(),
+			pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Name,
+			pUIMenu->m_nCurrentSelection > 0,
+			!!pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection+1].Name);
+	}
+	else
+	{
+		pUIMenu->EventHandler (MenuEventUpdate);	// no, update parameter display
+	}
+}
+
 void CUIMenu::MenuHandler (CUIMenu *pUIMenu, TMenuEvent Event)
 {
 	switch (Event)
@@ -655,7 +829,7 @@ void CUIMenu::MenuHandler (CUIMenu *pUIMenu, TMenuEvent Event)
 	{
 		pUIMenu->m_pUI->DisplayWrite (
 			pUIMenu->m_pParentMenu[pUIMenu->m_nCurrentMenuItem].Name,
-			to_string(pUIMenu->m_pMiniDexed->getTempo()).c_str(),
+			"",
 			pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Name,
 			pUIMenu->m_nCurrentSelection > 0,
 			!!pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection+1].Name);
@@ -666,6 +840,93 @@ void CUIMenu::MenuHandler (CUIMenu *pUIMenu, TMenuEvent Event)
 	}
 }
 
+void CUIMenu::MenuHandlerMidiFX (CUIMenu *pUIMenu, TMenuEvent Event)
+{
+	// Setup menu when it's open
+	if (!pUIMenu->m_pCurrentMenu)
+	{
+		pUIMenu->m_pCurrentMenu = s_MidiFX;
+	}
+	
+	switch (Event)
+	{
+	case MenuEventUpdate:
+		break;
+
+	case MenuEventSelect:				// push menu
+		assert (pUIMenu->m_nCurrentMenuDepth < MaxMenuDepth);
+		pUIMenu->m_MenuStackParent[pUIMenu->m_nCurrentMenuDepth] = pUIMenu->m_pParentMenu;
+		pUIMenu->m_MenuStackMenu[pUIMenu->m_nCurrentMenuDepth] = pUIMenu->m_pCurrentMenu;
+		pUIMenu->m_nMenuStackItem[pUIMenu->m_nCurrentMenuDepth]
+			= pUIMenu->m_nCurrentMenuItem;
+		pUIMenu->m_nMenuStackSelection[pUIMenu->m_nCurrentMenuDepth]
+			= pUIMenu->m_nCurrentSelection;
+		pUIMenu->m_nMenuStackParameter[pUIMenu->m_nCurrentMenuDepth]
+			= pUIMenu->m_nCurrentParameter;
+		pUIMenu->m_nCurrentMenuDepth++;
+
+		pUIMenu->m_pParentMenu = pUIMenu->m_pCurrentMenu;
+		pUIMenu->m_nCurrentParameter =
+			pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Parameter;
+		pUIMenu->m_pCurrentMenu =
+			pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].MenuItem;
+		pUIMenu->m_nCurrentMenuItem = pUIMenu->m_nCurrentSelection;
+		pUIMenu->m_nCurrentSelection = 0;
+		break;
+
+	case MenuEventStepDown:
+		if (pUIMenu->m_nCurrentSelection > 0)
+		{
+			pUIMenu->m_nCurrentSelection--;
+		}
+		break;
+
+	case MenuEventStepUp:
+		++pUIMenu->m_nCurrentSelection;
+		if (!pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Name)  // more entries?
+		{
+			pUIMenu->m_nCurrentSelection--;
+		}
+		break;
+
+	case MenuEventPressAndStepDown:
+	case MenuEventPressAndStepUp:
+		pUIMenu->TGShortcutHandler (Event);
+		return;
+
+	default:
+		return;
+	}
+
+	if (pUIMenu->m_pCurrentMenu)				// if this is another menu?
+	{
+		// Identify TG
+		unsigned nTG = pUIMenu->m_nMenuStackParameter[pUIMenu->m_nCurrentMenuDepth-1]; 
+		// Create TG label
+		string TG ("TG");
+		TG += to_string (nTG+1);
+
+		// Get current FX type
+		int nFxType = pUIMenu->m_pMiniDexed->GetTGParameter(CMiniDexed::TGParameterMidiFXType, nTG);
+
+		// Create Paramter with type label
+		std::string value;
+		value.append(pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Name);
+		value.append(getMidiFXTypeName(nFxType));
+
+		pUIMenu->m_pUI->DisplayWrite (
+			TG.c_str (),
+			pUIMenu->m_pParentMenu[pUIMenu->m_nCurrentMenuItem].Name,
+			value.c_str(),
+			pUIMenu->m_nCurrentSelection > 0,
+			!!pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection+1].Name);
+	}
+	else
+	{
+		pUIMenu->EventHandler (MenuEventUpdate);	// no, update parameter display
+	}
+}
+
 void CUIMenu::MenuHandlerInsertFX (CUIMenu *pUIMenu, TMenuEvent Event)
 {
 	// Setup menu when it's open
@@ -1103,6 +1364,148 @@ void CUIMenu::EditTGParameter2 (CUIMenu *pUIMenu, TMenuEvent Event) // second me
 				      nValue > rParam.Minimum, nValue < rParam.Maximum);
 }
 
+void CUIMenu::EditMidiFX (CUIMenu *pUIMenu, TMenuEvent Event)
+{
+	unsigned nTG = pUIMenu->m_nMenuStackParameter[pUIMenu->m_nCurrentMenuDepth-2]; 
+
+	int nFXType = pUIMenu->m_pMiniDexed->GetTGParameter(CMiniDexed::TGParameterMidiFXType, nTG);
+	pUIMenu->m_pCurrentMenu = getMidiFXMenuItem(nFXType);
+
+	switch (Event)
+	{
+	case MenuEventUpdate:
+		break;
+
+	case MenuEventSelect:				// push menu
+		if (nFXType == MidiEffect::ID)
+		{
+			break;
+		}
+		assert (pUIMenu->m_nCurrentMenuDepth < MaxMenuDepth);
+		pUIMenu->m_MenuStackParent[pUIMenu->m_nCurrentMenuDepth] = pUIMenu->m_pParentMenu;
+		pUIMenu->m_MenuStackMenu[pUIMenu->m_nCurrentMenuDepth] = pUIMenu->m_pCurrentMenu;
+		pUIMenu->m_nMenuStackItem[pUIMenu->m_nCurrentMenuDepth]
+			= pUIMenu->m_nCurrentMenuItem;
+		pUIMenu->m_nMenuStackSelection[pUIMenu->m_nCurrentMenuDepth]
+			= pUIMenu->m_nCurrentSelection;
+		pUIMenu->m_nMenuStackParameter[pUIMenu->m_nCurrentMenuDepth]
+			= pUIMenu->m_nCurrentParameter;
+		pUIMenu->m_nCurrentMenuDepth++;
+
+		pUIMenu->m_pParentMenu = pUIMenu->m_pCurrentMenu;
+		pUIMenu->m_nCurrentParameter =
+			pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Parameter;
+		pUIMenu->m_pCurrentMenu =
+			pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].MenuItem;
+		pUIMenu->m_nCurrentMenuItem = pUIMenu->m_nCurrentSelection;
+		pUIMenu->m_nCurrentSelection = 0;
+		break;
+
+	case MenuEventStepDown:
+		if (pUIMenu->m_nCurrentSelection > 0)
+		{
+			pUIMenu->m_nCurrentSelection--;
+		}
+		break;
+
+	case MenuEventStepUp:
+		++pUIMenu->m_nCurrentSelection;
+		if (!pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Name)  // more entries?
+		{
+			pUIMenu->m_nCurrentSelection--;
+		}
+		break;
+
+	default:
+		return;
+	}
+
+	if (pUIMenu->m_pCurrentMenu)				// if this is another menu?
+	{
+		string TG ("TG");
+		TG += to_string (nTG+1);
+		
+		pUIMenu->m_pUI->DisplayWrite (
+			TG.c_str (),
+			getMidiFXTypeName(nFXType).c_str(),
+			pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Name,
+			pUIMenu->m_nCurrentSelection > 0,
+			!!pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection+1].Name);
+	}
+	else
+	{
+		pUIMenu->EventHandler (MenuEventUpdate);	// no, update parameter display
+	}
+}
+
+void CUIMenu::EditTGMidiFXParameter (CUIMenu *pUIMenu, TMenuEvent Event)
+{
+	// Get TG
+	unsigned nTG = pUIMenu->m_nMenuStackParameter[pUIMenu->m_nCurrentMenuDepth-3];
+
+	// Get FX type
+	int nFXType = pUIMenu->m_pMiniDexed->GetTGParameter(CMiniDexed::TGParameterMidiFXType, nTG);
+	
+	// Get Param
+	unsigned nParam = pUIMenu->m_nCurrentParameter;
+	TParameter pParam = getMidiFXParameter(nFXType, nParam);
+	const TParameter &rParam = pParam;
+
+	int nValue = pUIMenu->m_pMiniDexed->GetMidiFXParameter (nParam, nTG, nFXType);
+	
+	switch (Event)
+	{
+	case MenuEventUpdate:
+		break;
+
+	case MenuEventPressAndStepDown:
+		nValue -= rParam.Increment * 9;
+	case MenuEventStepDown:
+		nValue -= rParam.Increment;
+		if (nValue < rParam.Minimum)
+		{
+			nValue = rParam.Minimum;
+		}
+		pUIMenu->m_pMiniDexed->SetMidiFXParameter (nParam, nValue, nTG, nFXType);
+		break;
+
+	case MenuEventPressAndStepUp:
+		nValue += rParam.Increment * 9;
+	case MenuEventStepUp:
+		nValue += rParam.Increment;
+		if (nValue > rParam.Maximum)
+		{
+			nValue = rParam.Maximum;
+		}
+		pUIMenu->m_pMiniDexed->SetMidiFXParameter (nParam, nValue, nTG, nFXType);
+		break;
+
+	default:
+		return;
+	}
+
+	string TG ("TG");
+	TG += to_string (nTG+1);
+
+	// Get value again after change
+	nValue = pUIMenu->m_pMiniDexed->GetMidiFXParameter (nParam, nTG, nFXType);
+	CUIMenu::TToString *pToString = rParam.ToString;
+	string Value;
+	if (pToString)
+	{
+		Value = (*pToString) (nValue);
+	}
+	else
+	{
+		Value = to_string (nValue);
+	}
+
+	pUIMenu->m_pUI->DisplayWrite (TG.c_str (),
+				      pUIMenu->m_pParentMenu[pUIMenu->m_nCurrentMenuItem].Name,
+				      Value.c_str (),
+				      nValue > rParam.Minimum, nValue < rParam.Maximum);
+}
+
 void CUIMenu::EditInsertFX (CUIMenu *pUIMenu, TMenuEvent Event)
 {
 	unsigned nTG = pUIMenu->m_nMenuStackParameter[pUIMenu->m_nCurrentMenuDepth-2]; 
@@ -2556,6 +2959,12 @@ CUIMenu::TMenuItem* CUIMenu::getFXMenuItem(unsigned type)
 	case EFFECT_REVERB:
 		menu = s_FXReverb;
 		break;
+	case EFFECT_MVERB:
+		menu = s_FXMVerb;
+		break;
+	case EFFECT_3BANDEQ:
+		menu = s_FX3BandEQ;
+		break;
 	case EFFECT_NONE:
 	default:
         menu = s_FXNone;
@@ -2614,8 +3023,43 @@ CUIMenu::TParameter CUIMenu::getFXParameter(unsigned type, unsigned nParam)
 	case EFFECT_REVERB:
 		pParam = s_TGFXReverbParam[nParam];
 		break;
+	case EFFECT_MVERB:
+		pParam = s_TGFXMVerbParam[nParam];
+		break;
+	case EFFECT_3BANDEQ:
+		pParam = s_TGFX3BandEQParam[nParam];
+		break;
 	default:
 		break;
 	}
 	return pParam;
 }
+
+CUIMenu::TMenuItem* CUIMenu::getMidiFXMenuItem(unsigned type)
+{
+	CUIMenu::TMenuItem* menu;
+	switch (type)
+	{
+	case MidiArp::ID:
+		menu = s_MidiFXArp;
+		break;
+	case MidiEffect::ID:
+	default:
+        menu = s_MidiFXNone;
+		break;
+	}
+	return menu;
+}
+
+CUIMenu::TParameter CUIMenu::getMidiFXParameter(unsigned type, unsigned nParam)
+{
+	TParameter pParam;
+	switch (type)
+	{
+	case MidiArp::ID:
+		pParam = s_TGMidiFXArpParam[nParam];
+	default:
+		break;
+	}
+	return pParam;
+}

src/uimenu.h

@@ -79,6 +79,7 @@ private:
 	};
 
 private:
+	static void MainMenuHandler (CUIMenu *pUIMenu, TMenuEvent Event);
 	static void MenuHandler (CUIMenu *pUIMenu, TMenuEvent Event);
 	static void EditGlobalParameter (CUIMenu *pUIMenu, TMenuEvent Event);
 	static void EditVoiceBankNumber (CUIMenu *pUIMenu, TMenuEvent Event);
@@ -93,6 +94,12 @@ private:
 	static void SavePerformanceNewFile (CUIMenu *pUIMenu, TMenuEvent Event);
 	static void EditPerformanceBankNumber (CUIMenu *pUIMenu, TMenuEvent Event);
 
+	static void MenuHandlerMidiFX (CUIMenu *pUIMenu, TMenuEvent Event);
+	static void EditMidiFX (CUIMenu *pUIMenu, TMenuEvent Event);
+	static void EditTGMidiFXParameter (CUIMenu *pUIMenu, TMenuEvent Event);
+	static CUIMenu::TMenuItem* getMidiFXMenuItem(unsigned type);	
+	static CUIMenu::TParameter getMidiFXParameter(unsigned type, unsigned param);
+
 	static CUIMenu::TMenuItem* getFXMenuItem(unsigned type);	
 	static CUIMenu::TParameter getFXParameter(unsigned type, unsigned param);
 
@@ -129,7 +136,7 @@ private:
 	static std::string ToFXType (int nValue);
 	static std::string ToMix (int nValue);
 	static std::string ToDelayTime (int nValue);
-	
+		
 	void TGShortcutHandler (TMenuEvent Event);
 	void OPShortcutHandler (TMenuEvent Event);
 
@@ -165,6 +172,7 @@ private:
 	static const TMenuItem s_SendFXMenu[];
 	static const TMenuItem s_ReverbMenu[];
 	static const TMenuItem s_InsertFX[];
+	static const TMenuItem s_MidiFX[];
 	
 	static TMenuItem s_FXNone[];
 	static TMenuItem s_FXChorus[];
@@ -174,6 +182,11 @@ private:
 	static TMenuItem s_FXBigMuff[];
 	static TMenuItem s_FXTalReverb3[];
 	static TMenuItem s_FXReverb[];
+	static TMenuItem s_FXMVerb[];
+	static TMenuItem s_FX3BandEQ[];
+
+	static TMenuItem s_MidiFXNone[];
+	static TMenuItem s_MidiFXArp[];
 
 	static const TMenuItem s_EditVoiceMenu[];
 	static const TMenuItem s_OperatorMenu[];
@@ -194,6 +207,9 @@ private:
 	static const TParameter s_TGFXBigMuffParam[];
 	static const TParameter s_TGFXTalReverb3Param[];
 	static const TParameter s_TGFXReverbParam[];
+	static const TParameter s_TGFXMVerbParam[];
+	static const TParameter s_TGFX3BandEQParam[];
+	static const TParameter s_TGMidiFXArpParam[];
 	static const TParameter s_VoiceParameter[];
 	static const TParameter s_OPParameter[];