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ALSA MIDI driver:

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Pith bend message now has correct size (was 2 bytes instead of 3).
	Recognized (but not implemented) 0xF? messages. SysEx messages will be reocognized as such, but their contents will be ignored.
This commit is contained in:
Ovnuniarchos 2020-01-21 21:46:25 +01:00
parent 90a224c6eb
commit 9c48eb1c59
2 changed files with 28 additions and 2 deletions
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7
core/os/midi_driver.cpp
View file

@ -52,7 +52,12 @@ void MIDIDriver::receive_input_packet(uint64_t timestamp, uint8_t *data, uint32_
uint32_t param_position = 1; uint32_t param_position = 1;
if (length >= 1) { if (length >= 1) {
if ((data[0] & 0x80) == 0x00) { if (data[0] >= 0xF0) {
// channel does not apply to system common messages
event->set_channel(0);
event->set_message(data[0]);
last_received_message = data[0];
} else if ((data[0] & 0x80) == 0x00) {
// running status // running status
event->set_channel(last_received_message & 0xF); event->set_channel(last_received_message & 0xF);
event->set_message(last_received_message >> 4); event->set_message(last_received_message >> 4);

23
drivers/alsamidi/midi_driver_alsamidi.cpp
View file

@ -43,12 +43,30 @@ static int get_message_size(uint8_t message) {
case 0x90: // note on case 0x90: // note on
case 0xA0: // aftertouch case 0xA0: // aftertouch
case 0xB0: // continuous controller case 0xB0: // continuous controller
case 0xE0: // pitch bend
case 0xF2: // song position pointer
return 3; return 3;
case 0xC0: // patch change case 0xC0: // patch change
case 0xD0: // channel pressure case 0xD0: // channel pressure
case 0xE0: // pitch bend case 0xF1: // time code quarter frame
case 0xF3: // song select
return 2; return 2;
case 0xF0: // SysEx start
case 0xF4: // reserved
case 0xF5: // reserved
case 0xF6: // tune request
case 0xF7: // SysEx end
case 0xF8: // timing clock
case 0xF9: // reserved
case 0xFA: // start
case 0xFB: // continue
case 0xFC: // stop
case 0xFD: // reserved
case 0xFE: // active sensing
case 0xFF: // reset
return 1;
} }
return 256; return 256;
@ -83,6 +101,9 @@ void MIDIDriverALSAMidi::thread_func(void *p_udata) {
bytes = 0; bytes = 0;
} }
expected_size = get_message_size(byte); expected_size = get_message_size(byte);
// After a SysEx start, all bytes are data until a SysEx end, so
// we're going to end the command at the SES, and let the common
// driver ignore the following data bytes.
} }
if (bytes < 256) { if (bytes < 256) {