virtualx-engine/drivers/coremidi/midi_driver_coremidi.cpp
2020-04-02 13:38:00 +02:00

123 lines
4.4 KiB
C++

/*************************************************************************/
/* midi_driver_coremidi.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifdef COREMIDI_ENABLED
#include "midi_driver_coremidi.h"
#include "core/print_string.h"
#include <CoreAudio/HostTime.h>
#include <CoreServices/CoreServices.h>
void MIDIDriverCoreMidi::read(const MIDIPacketList *packet_list, void *read_proc_ref_con, void *src_conn_ref_con) {
MIDIPacket *packet = const_cast<MIDIPacket *>(packet_list->packet);
for (UInt32 i = 0; i < packet_list->numPackets; i++) {
receive_input_packet(packet->timeStamp, packet->data, packet->length);
packet = MIDIPacketNext(packet);
}
}
Error MIDIDriverCoreMidi::open() {
CFStringRef name = CFStringCreateWithCString(nullptr, "Godot", kCFStringEncodingASCII);
OSStatus result = MIDIClientCreate(name, nullptr, nullptr, &client);
CFRelease(name);
if (result != noErr) {
ERR_PRINT("MIDIClientCreate failed, code: " + itos(result));
return ERR_CANT_OPEN;
}
result = MIDIInputPortCreate(client, CFSTR("Godot Input"), MIDIDriverCoreMidi::read, (void *)this, &port_in);
if (result != noErr) {
ERR_PRINT("MIDIInputPortCreate failed, code: " + itos(result));
return ERR_CANT_OPEN;
}
int sources = MIDIGetNumberOfSources();
for (int i = 0; i < sources; i++) {
MIDIEndpointRef source = MIDIGetSource(i);
if (source) {
MIDIPortConnectSource(port_in, source, (void *)this);
connected_sources.insert(i, source);
}
}
return OK;
}
void MIDIDriverCoreMidi::close() {
for (int i = 0; i < connected_sources.size(); i++) {
MIDIEndpointRef source = connected_sources[i];
MIDIPortDisconnectSource(port_in, source);
}
connected_sources.clear();
if (port_in != 0) {
MIDIPortDispose(port_in);
port_in = 0;
}
if (client != 0) {
MIDIClientDispose(client);
client = 0;
}
}
PackedStringArray MIDIDriverCoreMidi::get_connected_inputs() {
PackedStringArray list;
for (int i = 0; i < connected_sources.size(); i++) {
MIDIEndpointRef source = connected_sources[i];
CFStringRef ref = nullptr;
char name[256];
MIDIObjectGetStringProperty(source, kMIDIPropertyDisplayName, &ref);
CFStringGetCString(ref, name, sizeof(name), kCFStringEncodingUTF8);
CFRelease(ref);
list.push_back(name);
}
return list;
}
MIDIDriverCoreMidi::MIDIDriverCoreMidi() :
client(0) {
}
MIDIDriverCoreMidi::~MIDIDriverCoreMidi() {
close();
}
#endif // COREMIDI_ENABLED