fdf58a5858
It changed name as part of the DisplayServer and input refactoring in #37317, with the rationale that input no longer goes through the main loop, so the previous Input singleton now only does filtering. But the gains in consistency are quite limited in the renaming, and it breaks compatibility for all scripts and tutorials that access the Input singleton via the scripting language. A temporary option was suggested to keep the scripting singleton named `Input` even if its type is `InputFilter`, but that adds inconsistency and breaks C#. Fixes godotengine/godot-proposals#639. Fixes #37319. Fixes #37690.
134 lines
4.6 KiB
C++
134 lines
4.6 KiB
C++
/*************************************************************************/
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/* midi_driver.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "midi_driver.h"
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#include "core/input/input.h"
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#include "core/os/os.h"
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uint8_t MIDIDriver::last_received_message = 0x00;
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MIDIDriver *MIDIDriver::singleton = nullptr;
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MIDIDriver *MIDIDriver::get_singleton() {
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return singleton;
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}
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void MIDIDriver::set_singleton() {
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singleton = this;
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}
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void MIDIDriver::receive_input_packet(uint64_t timestamp, uint8_t *data, uint32_t length) {
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Ref<InputEventMIDI> event;
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event.instance();
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uint32_t param_position = 1;
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if (length >= 1) {
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if (data[0] >= 0xF0) {
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// channel does not apply to system common messages
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event->set_channel(0);
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event->set_message(data[0]);
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last_received_message = data[0];
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} else if ((data[0] & 0x80) == 0x00) {
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// running status
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event->set_channel(last_received_message & 0xF);
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event->set_message(last_received_message >> 4);
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param_position = 0;
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} else {
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event->set_channel(data[0] & 0xF);
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event->set_message(data[0] >> 4);
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param_position = 1;
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last_received_message = data[0];
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}
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}
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switch (event->get_message()) {
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case MIDI_MESSAGE_AFTERTOUCH:
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if (length >= 2 + param_position) {
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event->set_pitch(data[param_position]);
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event->set_pressure(data[param_position + 1]);
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}
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break;
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case MIDI_MESSAGE_CONTROL_CHANGE:
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if (length >= 2 + param_position) {
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event->set_controller_number(data[param_position]);
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event->set_controller_value(data[param_position + 1]);
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}
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break;
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case MIDI_MESSAGE_NOTE_ON:
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case MIDI_MESSAGE_NOTE_OFF:
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if (length >= 2 + param_position) {
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event->set_pitch(data[param_position]);
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event->set_velocity(data[param_position + 1]);
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if (event->get_message() == MIDI_MESSAGE_NOTE_ON && event->get_velocity() == 0) {
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// https://www.midi.org/forum/228-writing-midi-software-send-note-off,-or-zero-velocity-note-on
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event->set_message(MIDI_MESSAGE_NOTE_OFF);
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}
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}
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break;
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case MIDI_MESSAGE_PITCH_BEND:
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if (length >= 2 + param_position) {
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event->set_pitch((data[param_position + 1] << 7) | data[param_position]);
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}
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break;
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case MIDI_MESSAGE_PROGRAM_CHANGE:
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if (length >= 1 + param_position) {
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event->set_instrument(data[param_position]);
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}
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break;
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case MIDI_MESSAGE_CHANNEL_PRESSURE:
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if (length >= 1 + param_position) {
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event->set_pressure(data[param_position]);
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}
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break;
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}
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Input *id = Input::get_singleton();
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id->parse_input_event(event);
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}
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PackedStringArray MIDIDriver::get_connected_inputs() {
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PackedStringArray list;
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return list;
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}
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MIDIDriver::MIDIDriver() {
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set_singleton();
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}
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