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Merge pull request #34072 from arlez80/master

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fixed pitch bend value and MIDI running status on the InputEventMIDI.
This commit is contained in:
Rémi Verschelde 2019-12-03 09:45:19 +01:00 committed by GitHub
commit c3609eb211
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 33 additions and 16 deletions
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48
core/os/midi_driver.cpp
View file

@ -33,6 +33,7 @@
#include "core/os/os.h"
#include "main/input_default.h"
uint8_t MIDIDriver::last_received_message = 0x00;
MIDIDriver *MIDIDriver::singleton = NULL;
MIDIDriver *MIDIDriver::get_singleton() {
@ -48,33 +49,42 @@ void MIDIDriver::receive_input_packet(uint64_t timestamp, uint8_t *data, uint32_
Ref<InputEventMIDI> event;
event.instance();
uint32_t param_position = 1;
if (length >= 1) {
event->set_channel(data[0] & 0xF);
event->set_message(data[0] >> 4);
if ((data[0] & 0x80) == 0x00) {
// running status
event->set_channel(last_received_message & 0xF);
event->set_message(last_received_message >> 4);
param_position = 0;
} else {
event->set_channel(data[0] & 0xF);
event->set_message(data[0] >> 4);
param_position = 1;
last_received_message = data[0];
}
}
switch (event->get_message()) {
case MIDI_MESSAGE_AFTERTOUCH:
if (length >= 3) {
event->set_pitch(data[1]);
event->set_pressure(data[2]);
if (length >= 2 + param_position) {
event->set_pitch(data[param_position]);
event->set_pressure(data[param_position + 1]);
}
break;
case MIDI_MESSAGE_CONTROL_CHANGE:
if (length >= 3) {
event->set_controller_number(data[1]);
event->set_controller_value(data[2]);
if (length >= 2 + param_position) {
event->set_controller_number(data[param_position]);
event->set_controller_value(data[param_position + 1]);
}
break;
case MIDI_MESSAGE_NOTE_ON:
case MIDI_MESSAGE_NOTE_OFF:
case MIDI_MESSAGE_PITCH_BEND:
if (length >= 3) {
event->set_pitch(data[1]);
event->set_velocity(data[2]);
if (length >= 2 + param_position) {
event->set_pitch(data[param_position]);
event->set_velocity(data[param_position + 1]);
if (event->get_message() == MIDI_MESSAGE_NOTE_ON && event->get_velocity() == 0) {
// https://www.midi.org/forum/228-writing-midi-software-send-note-off,-or-zero-velocity-note-on
@ -83,15 +93,21 @@ void MIDIDriver::receive_input_packet(uint64_t timestamp, uint8_t *data, uint32_
}
break;
case MIDI_MESSAGE_PITCH_BEND:
if (length >= 2 + param_position) {
event->set_pitch((data[param_position + 1] << 7) | data[param_position]);
}
break;
case MIDI_MESSAGE_PROGRAM_CHANGE:
if (length >= 2) {
event->set_instrument(data[1]);
if (length >= 1 + param_position) {
event->set_instrument(data[param_position]);
}
break;
case MIDI_MESSAGE_CHANNEL_PRESSURE:
if (length >= 2) {
event->set_pressure(data[1]);
if (length >= 1 + param_position) {
event->set_pressure(data[param_position]);
}
break;
}

1
core/os/midi_driver.h
View file

@ -41,6 +41,7 @@
class MIDIDriver {
static MIDIDriver *singleton;
static uint8_t last_received_message;
public:
static MIDIDriver *get_singleton();