MidiHandler.cpp

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/*
 * MidiHandler.cpp
 *
 *  Created on: 23.02.2021
 *      Author: Yannick
 */
#include "MidiHandler.h"
#ifdef MIDI
 
uint8_t MidiHandler::buf[] = {0};
 
MidiHandler::MidiHandler() {
    extern MidiHandler* midihandler; // Global pointer
    midihandler = this;
 
}
 
MidiHandler::~MidiHandler() {
    extern MidiHandler* midihandler; // Global pointer
    midihandler = nullptr;
}
 
 
 
void MidiHandler::midiRx(uint8_t itf,uint8_t packet[4]){
 
    pulseSysLed();
    uint8_t chan = packet[1] & 0xf;
    uint8_t packettype = packet[1] & 0xf0;
    uint8_t b1 =  packet[2];
    uint8_t b2 =  packet[3];
 
    switch(packet[1]){ // System packet
 
        case MIDI_STATUS_SYSEX_START:
        {
            sysexState = true;
            otherPacket(packet);
            break;
        }
        case MIDI_STATUS_SYSEX_END:
            sysexState = false;
            otherPacket(packet);
            break;
 
        //------------- System Common -------------//
//          case MIDI_STATUS_SYSCOM_TIME_CODE_QUARTER_FRAME:
//          case MIDI_STATUS_SYSCOM_SONG_POSITION_POINTER:
//          case MIDI_STATUS_SYSCOM_SONG_SELECT:
//          // F4, F5 is undefined
//          case MIDI_STATUS_SYSCOM_TUNE_REQUEST:
//              sysexState = false;
//              break;
 
        //------------- System RealTime  -------------//
        case MIDI_STATUS_SYSREAL_TIMING_CLOCK:
            // tick
            this->midiTick();
            break;
        // 0xF9 is undefined
//          case MIDI_STATUS_SYSREAL_START:
//          case MIDI_STATUS_SYSREAL_CONTINUE:
//          case MIDI_STATUS_SYSREAL_STOP:
//          // 0xFD is undefined
//          case MIDI_STATUS_SYSREAL_ACTIVE_SENSING:
//          case MIDI_STATUS_SYSREAL_SYSTEM_RESET:
//              sysexState = false;
//              break;
 
        default:
 
        switch (packettype) {
            case 0x80:
                // Noteoff
                this->noteOff(chan, b1, b2);
                break;
            case 0x90:
                // Noteon
                if(b2 == 0){
                    this->noteOff(chan, b1, b2);
                }else{
                    this->noteOn(chan, b1, b2);
                }
                break;
            case 0xB0:
                //cc
                this->controlChange(chan, b1,b2);
                break;
            case 0xC0:
                //pc
                this->programChange(chan,b1);
                break;
            case 0xD0:
 
                break;
            case 0xE0:
            {
                //pb
                int16_t pb = (b1 & 0x7f) | ((b2 & 0x7f) << 7);
                this->pitchBend(chan, pb-8192);
                break;
            }
 
            default:
                otherPacket(packet);
                break;
        }
    }
 
 
}
 
void MidiHandler::noteOn(uint8_t chan, uint8_t note,uint8_t velocity){
 
}
void MidiHandler::noteOff(uint8_t chan, uint8_t note,uint8_t velocity){
 
}
void MidiHandler::controlChange(uint8_t chan, uint8_t c, uint8_t val){
 
}
void MidiHandler::pitchBend(uint8_t chan, int16_t val){
 
}
void MidiHandler::midiTick(){
 
}
void MidiHandler::programChange(uint8_t chan, uint8_t val){
 
}
void MidiHandler::otherPacket(uint8_t packet[4]){
 
}
 
#endif