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Brandon Switzer
2019-07-22 20:10:06 -04:00
parent 6609126c68
commit eba49a2bf6
41 changed files with 2577 additions and 0 deletions
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ControlBox/midi.cpp
+35
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@@ -0,0 +1,35 @@
void checkForMidiUSB()
{
midiEventPacket_t rx; //midi data struct from midiUSB libray
do
{
rx = MidiUSB.read(); //get queued info from USB
if(rx.header != 0)
{
decodeMidi(rx.header, rx.byte1, rx.byte2, rx.byte3);
}
} while(rx.header != 0);
}
void decodeMidi(uint8_t header, uint8_t byte1, uint8_t byte2, uint8_t byte3)
{
const uint8_t NOTE_ON_HEADER = 9;
const uint8_t NOTE_OFF_HEADER = 8;
const uint8_t CONTROL_CHANGE_HEADER = 8;
const uint8_t SUSTAIN_STATUS_BYTE = 176;
const uint8_t MIN_NOTE_PITCH = 21;
//note that ESP32 does bounds checking
switch(header)
{
case NOTE_ON_HEADER:
sendSerialToMain(SerialConstants::NOTE_HEADER, byte2 - MIN_NOTE_PITCH, byte3);
break;
case NOTE_OFF_HEADER:
sendSerialToMain(SerialConstants::NOTE_HEADER, byte2 - MIN_NOTE_PITCH, 0);
break;
case SUSTAIN_STATUS_BYTE:
if(byte1 == SUSTAIN_STATUS_BYTE)
sendSerialToMain(SerialConstants::SUSTAIN_HEADER, byte3, byte3);
break;
}
}