initial commit, 4.5 stable

drivers/coremidi/SCsub

@@ -0,0 +1,7 @@
+#!/usr/bin/env python
+from misc.utility.scons_hints import *
+
+Import("env")
+
+# Driver source files
+env.add_source_files(env.drivers_sources, "*.mm")

drivers/coremidi/midi_driver_coremidi.h

@@ -0,0 +1,68 @@
+/**************************************************************************/
+/*  midi_driver_coremidi.h                                                */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* 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.                 */
+/**************************************************************************/
+
+#pragma once
+
+#ifdef COREMIDI_ENABLED
+
+#include "core/os/midi_driver.h"
+#include "core/os/mutex.h"
+#include "core/templates/vector.h"
+
+#import <CoreMIDI/CoreMIDI.h>
+#include <cstdio>
+
+class MIDIDriverCoreMidi : public MIDIDriver {
+	MIDIClientRef client = 0;
+	MIDIPortRef port_in;
+
+	struct InputConnection {
+		InputConnection() = default;
+		InputConnection(int p_device_index, MIDIEndpointRef p_source);
+		Parser parser;
+		MIDIEndpointRef source;
+	};
+
+	Vector<InputConnection *> connected_sources;
+
+	static Mutex mutex;
+	static bool core_midi_closed;
+
+	static void read(const MIDIPacketList *packet_list, void *read_proc_ref_con, void *src_conn_ref_con);
+
+public:
+	virtual Error open() override;
+	virtual void close() override;
+
+	MIDIDriverCoreMidi() = default;
+	virtual ~MIDIDriverCoreMidi();
+};
+
+#endif // COREMIDI_ENABLED

drivers/coremidi/midi_driver_coremidi.mm

@@ -0,0 +1,132 @@
+/**************************************************************************/
+/*  midi_driver_coremidi.mm                                               */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* 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.                 */
+/**************************************************************************/
+
+#import "midi_driver_coremidi.h"
+
+#ifdef COREMIDI_ENABLED
+
+#include "core/string/print_string.h"
+
+#import <CoreServices/CoreServices.h>
+
+Mutex MIDIDriverCoreMidi::mutex;
+bool MIDIDriverCoreMidi::core_midi_closed = false;
+
+MIDIDriverCoreMidi::InputConnection::InputConnection(int p_device_index, MIDIEndpointRef p_source) :
+		parser(p_device_index), source(p_source) {}
+
+void MIDIDriverCoreMidi::read(const MIDIPacketList *packet_list, void *read_proc_ref_con, void *src_conn_ref_con) {
+	MutexLock lock(mutex);
+	if (!core_midi_closed) {
+		InputConnection *source = static_cast<InputConnection *>(src_conn_ref_con);
+		const MIDIPacket *packet = packet_list->packet;
+		for (UInt32 packet_index = 0; packet_index < packet_list->numPackets; packet_index++) {
+			for (UInt16 data_index = 0; data_index < packet->length; data_index++) {
+				source->parser.parse_fragment(packet->data[data_index]);
+			}
+			packet = MIDIPacketNext(packet);
+		}
+	}
+}
+
+Error MIDIDriverCoreMidi::open() {
+	ERR_FAIL_COND_V_MSG(client || core_midi_closed, FAILED,
+			"MIDIDriverCoreMidi cannot be reopened.");
+
+	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 source_count = MIDIGetNumberOfSources();
+	int connection_index = 0;
+	for (int i = 0; i < source_count; i++) {
+		MIDIEndpointRef source = MIDIGetSource(i);
+		if (source) {
+			InputConnection *conn = memnew(InputConnection(connection_index, source));
+			const OSStatus res = MIDIPortConnectSource(port_in, source, static_cast<void *>(conn));
+			if (res != noErr) {
+				memdelete(conn);
+			} else {
+				connected_sources.push_back(conn);
+
+				CFStringRef nameRef = nullptr;
+				char name[256];
+				MIDIObjectGetStringProperty(source, kMIDIPropertyDisplayName, &nameRef);
+				CFStringGetCString(nameRef, name, sizeof(name), kCFStringEncodingUTF8);
+				CFRelease(nameRef);
+				connected_input_names.push_back(name);
+
+				connection_index++; // Contiguous index for successfully connected inputs.
+			}
+		}
+	}
+
+	return OK;
+}
+
+void MIDIDriverCoreMidi::close() {
+	mutex.lock();
+	core_midi_closed = true;
+	mutex.unlock();
+
+	for (InputConnection *conn : connected_sources) {
+		MIDIPortDisconnectSource(port_in, conn->source);
+		memdelete(conn);
+	}
+
+	connected_sources.clear();
+	connected_input_names.clear();
+
+	if (port_in != 0) {
+		MIDIPortDispose(port_in);
+		port_in = 0;
+	}
+
+	if (client != 0) {
+		MIDIClientDispose(client);
+		client = 0;
+	}
+}
+
+MIDIDriverCoreMidi::~MIDIDriverCoreMidi() {
+	close();
+}
+
+#endif // COREMIDI_ENABLED