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/*
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)
, _has_been_mixed_down (false)
{
// 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);
}
}
MidiBuffer &
MidiPort::get_midi_buffer( nframes_t nframes, nframes_t offset ) {
if (_has_been_mixed_down)
return *_buffer;
if (_flags & IsInput) {
if (_ext_port) {
BaseMidiPort* mprt = dynamic_cast<BaseMidiPort*>(_ext_port);
assert(mprt);
assert(&mprt->get_midi_buffer(nframes,offset) == _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);
}
if (nframes)
_has_been_mixed_down = true;
return *_buffer;
}
void
MidiPort::cycle_end (nframes_t nframes, nframes_t offset)
{
if (_ext_port) {
_ext_port->cycle_end (nframes, offset);
}
_has_been_mixed_down = false;
}
void
MidiPort::flush_buffers (nframes_t nframes, nframes_t offset)
{
if (_ext_port) {
_ext_port->flush_buffers (nframes, offset);
}
}
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