Move event specific ringbuffer stuff to evoral.

Sane event type interface between evoral and libardour (no more shared magic numbers).
Cleanup Evoral::Sequence iterator, fix bugs, probably introduce new ones.
Move MIDI specific event functions to Evoral::MIDIEvent (is-a Evoral::Event).


git-svn-id: svn://localhost/ardour2/branches/3.0@3785 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 61 insertions, 0 deletions

diff --git a/libs/ardour/event_type_map.cc b/libs/ardour/event_type_map.cc
new file mode 100644
index 0000000000..cd78fd02f7
--- /dev/null
+++ b/libs/ardour/event_type_map.cc
@@ -0,0 +1,61 @@
+/*
+    Copyright (C) 2008 Paul Davis
+    Author: Dave Robillard
+
+    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 <ardour/types.h>
+#include <ardour/event_type_map.h>
+#include <evoral/Parameter.hpp>
+#include <evoral/midi_events.h>
+
+namespace ARDOUR {
+
+EventTypeMap EventTypeMap::event_type_map;
+
+bool
+EventTypeMap::type_is_midi(uint32_t type) const
+{
+	return (type >= MidiCCAutomation) && (type <= MidiChannelPressureAutomation);
+}
+
+uint8_t
+EventTypeMap::parameter_midi_type(const Evoral::Parameter& param) const
+{
+	switch (param.type()) {
+	case MidiCCAutomation:              return MIDI_CMD_CONTROL; break; 
+	case MidiPgmChangeAutomation:       return MIDI_CMD_PGM_CHANGE; break; 
+	case MidiChannelPressureAutomation: return MIDI_CMD_CHANNEL_PRESSURE; break; 
+	case MidiPitchBenderAutomation:     return MIDI_CMD_BENDER; break; 
+	default: return 0;
+	}
+}
+
+uint32_t
+EventTypeMap::midi_event_type(uint8_t status) const
+{
+	switch (status & 0xF0) {
+	case MIDI_CMD_CONTROL:          return MidiCCAutomation; break;
+	case MIDI_CMD_PGM_CHANGE:       return MidiPgmChangeAutomation; break;
+	case MIDI_CMD_CHANNEL_PRESSURE: return MidiChannelPressureAutomation; break;
+	case MIDI_CMD_BENDER:           return MidiPitchBenderAutomation; break;
+	default: return 0;
+	}
+}
+
+} // namespace ARDOUR
+