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607c5ec49f
Aims for more consistent MIDI support across Windows, MacOS, Linux and to provide a base for adding MIDI drivers for other platforms. Reworks the MIDIDriverALSAMidi MIDI parsing implementation as a platform independent version in MIDIDriver::Parser. Uses MIDIDriver::Parser to provide running status support in MacOS MIDIDriverCoreMidi. Collects connected input names at open, ensuring devices indices reported in events match names in array returned from get_connected_inputs. Fixes #77035. Fixes #79811. With code review changes by: A Thousand Ships (she/her) <96648715+AThousandShips@users.noreply.github.com>
98 lines
4.1 KiB
C++
98 lines
4.1 KiB
C++
/**************************************************************************/
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/* midi_driver_winmidi.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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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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#ifdef WINMIDI_ENABLED
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#include "midi_driver_winmidi.h"
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#include "core/string/print_string.h"
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void MIDIDriverWinMidi::read(HMIDIIN hMidiIn, UINT wMsg, DWORD_PTR dwInstance, DWORD_PTR dwParam1, DWORD_PTR dwParam2) {
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if (wMsg == MIM_DATA) {
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// For MIM_DATA: dwParam1 = wMidiMessage, dwParam2 = dwTimestamp.
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// Windows implementation has already unpacked running status and dropped any SysEx,
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// so we can just forward straight to the event.
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const uint8_t *midi_msg = (uint8_t *)&dwParam1;
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send_event((int)dwInstance, midi_msg[0], &midi_msg[1], 2);
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}
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}
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Error MIDIDriverWinMidi::open() {
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int device_index = 0;
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for (UINT i = 0; i < midiInGetNumDevs(); i++) {
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HMIDIIN midi_in;
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MIDIINCAPS caps;
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MMRESULT open_res = midiInOpen(&midi_in, i, (DWORD_PTR)read,
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(DWORD_PTR)device_index, CALLBACK_FUNCTION);
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MMRESULT caps_res = midiInGetDevCaps(i, &caps, sizeof(MIDIINCAPS));
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if (open_res == MMSYSERR_NOERROR) {
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midiInStart(midi_in);
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connected_sources.push_back(midi_in);
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if (caps_res == MMSYSERR_NOERROR) {
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connected_input_names.push_back(caps.szPname);
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} else {
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// Should push something even if we don't get a name,
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// so that the IDs line up correctly on the script side.
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connected_input_names.push_back("ERROR");
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}
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// Only increment device index for successfully connected devices.
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device_index++;
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} else {
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char err[256];
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midiInGetErrorText(open_res, err, 256);
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ERR_PRINT("midiInOpen error: " + String(err));
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if (caps_res == MMSYSERR_NOERROR) {
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ERR_PRINT("Can't open MIDI device \"" + String(caps.szPname) + "\", is it being used by another application?");
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}
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}
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}
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return OK;
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}
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void MIDIDriverWinMidi::close() {
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for (int i = 0; i < connected_sources.size(); i++) {
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HMIDIIN midi_in = connected_sources[i];
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midiInStop(midi_in);
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midiInClose(midi_in);
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}
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connected_sources.clear();
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connected_input_names.clear();
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}
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MIDIDriverWinMidi::~MIDIDriverWinMidi() {
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close();
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}
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#endif // WINMIDI_ENABLED
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