1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/am/midi_pack.h b/drivers/am/midi_pack.h
new file mode 100644
index 0000000..6fb704b
--- /dev/null
+++ b/drivers/am/midi_pack.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2006,2007 Dmitry S. Baikov
+ *
+ *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef __jack_midi_pack_h__
+#define __jack_midi_pack_h__
+
+#include <jack/midiport.h>
+#include "engine.h"
+
+typedef struct {
+	int running_status;
+} midi_pack_t;
+
+static inline
+void midi_pack_reset(midi_pack_t *p)
+{
+	p->running_status = 0;
+}
+
+static
+void midi_pack_event(midi_pack_t *p, jack_midi_event_t *e)
+{
+	if (e->buffer[0] >= 0x80 && e->buffer[0] < 0xF0) { // Voice Message
+		if (e->buffer[0] == p->running_status) {
+			e->buffer++;
+			e->size--;
+		} else
+			p->running_status = e->buffer[0];
+	} else if (e->buffer[0] < 0xF8) { // not System Realtime
+		p->running_status = 0;
+	}
+}
+
+#endif /* __jack_midi_pack_h__ */