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Fix program change and channel pressure receipt in standalone jack backend

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Sean Bolton 2022-08-20 10:45:06 -07:00 • committed by Robbert van der Helm
parent 50ac2cb2b6
commit 7a10d58a58
1 changed files with 15 additions and 3 deletions
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18
src/wrapper/standalone/backend/jack.rs
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@ -119,9 +119,21 @@ impl Backend for Jack {
input_events.clear();
if let Some(midi_input) = &midi_input {
input_events.extend(midi_input.iter(ps).filter_map(|midi| {
// This should always be three bytes, but we get an unsized slice
let midi_data: [u8; 3] = midi.bytes.try_into().ok()?;
NoteEvent::from_midi(midi.time, midi_data).ok()
// Unless it is a SysEx message, a JACK MIDI message is always three bytes or
// less and is normalized (starts with a status byte and is self-contained).
// Filter out the SysEx messages.
let len = midi.bytes.len();
if len <= 3 {
let mut midi_data = [0u8; 3];
midi_data[..len].copy_from_slice(midi.bytes);
if midi_data[0] >= 0x80 && midi_data[0] != 0xF0 && midi_data[0] != 0xF7 {
NoteEvent::from_midi(midi.time, midi_data).ok()
} else {
None
}
} else {
None
}
}));
}