1 files changed, 103 insertions, 0 deletions
diff --git a/libs/backends/coreaudio/coremidi_io.h b/libs/backends/coreaudio/coremidi_io.h
new file mode 100644
index 0000000000..312b9d171e
--- /dev/null
+++ b/libs/backends/coreaudio/coremidi_io.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2015 Robin Gareus <robin@gareus.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <CoreServices/CoreServices.h>
+#include <CoreAudio/CoreAudio.h>
+#include <AudioUnit/AudioUnit.h>
+
+#include <AudioUnit/AudioUnit.h>
+#include <AudioToolbox/AudioToolbox.h>
+
+#include <map>
+#include <vector>
+#include <string>
+
+#include <boost/shared_ptr.hpp>
+#include "pbd/ringbuffer.h"
+
+typedef struct _CoreMIDIPacket { 
+	MIDITimeStamp timeStamp; 
+	UInt16 length; 
+	Byte data[256]; 
+#if 0 // unused
+	_CoreMIDIPacket (MIDITimeStamp t, Byte *d, UInt16 l)
+		: timeStamp(t)
+		, length (l)
+	{
+		if (l > 256) {
+			length = 256;
+		}
+		if (length > 0) {
+			memcpy(data, d, length);
+		}
+	}
+#endif
+	_CoreMIDIPacket (const MIDIPacket *other) 
+		: timeStamp(other->timeStamp)
+		, length (other->length)
+	{
+		if (length > 0) {
+			memcpy(data, other->data, length);
+		}
+	}
+} CoreMIDIPacket;
+
+typedef std::vector<boost::shared_ptr<CoreMIDIPacket> > CoreMIDIQueue;
+
+class CoreMidiIo {
+public:
+	CoreMidiIo (void);
+	~CoreMidiIo (void);
+
+	// TODO explicit start/stop, add/remove devices as needed.
+	void discover ();
+	void start_cycle ();
+
+	int send_event (uint32_t, double, const uint8_t *, const size_t);
+	size_t recv_event (uint32_t, double, uint64_t &, uint8_t *, size_t &);
+
+	uint32_t n_midi_inputs (void) const { return _n_midi_in; }
+	uint32_t n_midi_outputs (void) const { return _n_midi_out; }
+
+	void notify_proc (const MIDINotification *message);
+
+	void setPortChangedCallback (void (changed_callback (void*)), void *arg) {
+		_changed_callback = changed_callback;
+		_changed_arg = arg;
+	}
+
+private:
+	void cleanup ();
+
+	MIDIClientRef     _midiClient;
+	MIDIEndpointRef * _inputEndPoints;
+	MIDIEndpointRef * _outputEndPoints;
+	MIDIPortRef *     _inputPorts;
+	MIDIPortRef *     _outputPorts;
+	CoreMIDIQueue *  _inputQueue;
+	RingBuffer<uint8_t> ** _rb;
+
+	uint32_t _n_midi_in;
+	uint32_t _n_midi_out;
+
+	MIDITimeStamp _time_at_cycle_start;
+	bool _active;
+
+	void (* _changed_callback) (void*);
+	void  * _changed_arg;
+};