new audio engine backend for native CoreAudio audio I/O, and PortMIDI for MIDI.

Code builds, runs and functions. Full code review still pending, and some possibly changes to organization of code within the backend is possible

1 files changed, 72 insertions, 0 deletions

diff --git a/libs/backends/wavesaudio/waves_midi_device.h b/libs/backends/wavesaudio/waves_midi_device.h
new file mode 100644
index 0000000000..a8b734736d
--- /dev/null
+++ b/libs/backends/wavesaudio/waves_midi_device.h
@@ -0,0 +1,72 @@
+/*
+    Copyright (C) 2014 Waves Audio Ltd.
+
+    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.
+
+*/
+
+#ifndef __libardour_waves_midi_device_h__
+#define __libardour_waves_midi_device_h__
+
+#include <portmidi/portmidi.h>
+#include <portmidi/pmutil.h>
+#include <portmidi/porttime.h>
+
+#include "ardour/types.h"
+
+namespace ARDOUR {
+
+class WavesMidiEvent;
+
+class WavesMidiDevice {
+public:
+    WavesMidiDevice (const std::string& name);
+    ~WavesMidiDevice ();
+
+    inline const std::string& name () const { return _name; }
+
+    int open (PmTimeProcPtr time_proc, void* time_info);
+    void close ();
+    void do_io ();
+    void read_midi ();
+    void write_midi ();
+
+    int enqueue_output_waves_midi_event (const WavesMidiEvent* waves_midi_event);
+    WavesMidiEvent* dequeue_input_waves_midi_event ();
+
+    inline bool is_input () const { return _pm_input_id != pmNoDevice; };
+    inline bool is_output () const { return _pm_output_id != pmNoDevice; };
+    void validate ();
+
+private:
+
+
+    PmDeviceID _pm_input_id;
+    PmDeviceID _pm_output_id;
+    const std::string _name;
+
+    /* shared queues */
+    PmQueue* _input_queue;
+    PmQueue* _output_queue;
+
+    PmStream* _input_pm_stream;
+    PmStream* _output_pm_stream;
+    WavesMidiEvent *_incomplete_waves_midi_event;
+};
+
+} // namespace
+
+#endif /* __libardour_waves_midi_device_h__ */
+