rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 112 insertions, 0 deletions

diff --git a/libs/ardour/midi_port.cc b/libs/ardour/midi_port.cc
new file mode 100644
index 0000000000..14f88f2ad5
--- /dev/null
+++ b/libs/ardour/midi_port.cc
@@ -0,0 +1,112 @@
+/*
+    Copyright (C) 2006 Paul Davis 
+
+    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 <cassert>
+#include <iostream>
+
+#include <ardour/midi_port.h>
+#include <ardour/jack_midi_port.h>
+#include <ardour/data_type.h>
+
+using namespace ARDOUR;
+using namespace std;
+
+MidiPort::MidiPort (const std::string& name, Flags flags, bool external, nframes_t capacity)
+	: Port (name, flags)
+	, BaseMidiPort (name, flags)
+	, PortFacade (name, flags)
+{
+	// FIXME: size kludge (see BufferSet::ensure_buffers)
+	// Jack needs to tell us this
+	_buffer = new MidiBuffer (capacity * 8);
+
+	if (external) {
+		/* external ports use the same buffer for the jack port (_ext_port)
+		 * and internal ports (this) */
+		_ext_port = new JackMidiPort (name, flags, _buffer);
+		Port::set_name (_ext_port->name());
+	} else {
+		/* internal ports just have a single buffer, no jack port */
+		_ext_port = 0;
+		set_name (name);
+	}
+
+	reset ();
+}
+
+MidiPort::~MidiPort()
+{
+	if (_ext_port) {
+		delete _ext_port;
+		_ext_port = 0;
+	}
+}
+
+void
+MidiPort::reset()
+{
+	BaseMidiPort::reset();
+
+	if (_ext_port) {
+		_ext_port->reset ();
+	}
+}
+
+void
+MidiPort::cycle_start (nframes_t nframes, nframes_t offset)
+{
+	if (_ext_port) {
+		_ext_port->cycle_start (nframes, offset);
+	}
+	
+	if (_flags & IsInput) {
+			
+		if (_ext_port) {
+		
+			BaseMidiPort* mprt = dynamic_cast<BaseMidiPort*>(_ext_port);
+			assert(mprt);
+			assert(&mprt->get_midi_buffer() == _buffer);
+
+			if (!_connections.empty()) {
+				(*_mixdown) (_connections, _buffer, nframes, offset, false);
+			}
+
+		} else {
+		
+			if (_connections.empty()) {
+				_buffer->silence (nframes, offset);
+			} else {
+				(*_mixdown) (_connections, _buffer, nframes, offset, true);
+			}
+		}
+
+	} else {
+			
+		_buffer->silence (nframes, offset);
+	}
+}
+
+	
+void
+MidiPort::cycle_end (nframes_t nframes, nframes_t offset)
+{
+	if (_ext_port) {
+		_ext_port->cycle_end (nframes, offset);
+	}
+}
+