midiport_manager.cc

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/*
    Copyright (C) 1998-99 Paul Barton-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.

    $Id$
*/

#include "ardour/audioengine.h"
#include "ardour/async_midi_port.h"
#include "ardour/midiport_manager.h"
#include "ardour/rc_configuration.h"

#include "i18n.h"

using namespace ARDOUR;
using namespace std;
using namespace MIDI;
using namespace PBD;


MidiPortManager::MidiPortManager ()
{
        create_ports ();
}

MidiPortManager::~MidiPortManager ()
{
        if (_midi_in) {
                AudioEngine::instance()->unregister_port (_midi_in);
        }
        if (_midi_out) {
                AudioEngine::instance()->unregister_port (_midi_out);
        }
        if (_scene_in) {
                AudioEngine::instance()->unregister_port (_scene_in);
        }
        if (_scene_out) {
                AudioEngine::instance()->unregister_port (_scene_out);
        }
        if (_mtc_input_port) {
                AudioEngine::instance()->unregister_port (_mtc_input_port);
        }
        if (_mtc_output_port) {
                AudioEngine::instance()->unregister_port (_mtc_output_port);
        }
        if (_midi_clock_input_port) {
                AudioEngine::instance()->unregister_port (_midi_clock_input_port);
        }
        if (_midi_clock_output_port) {
                AudioEngine::instance()->unregister_port (_midi_clock_output_port);
        }

}

void
MidiPortManager::create_ports ()
{
        /* this method is idempotent
         */

        if (_midi_in) {
                return;
        }
              
        _midi_in  = AudioEngine::instance()->register_input_port (DataType::MIDI, X_("MIDI control in"), true);
        _midi_out = AudioEngine::instance()->register_output_port (DataType::MIDI, X_("MIDI control out"), true);

        _mmc_in  = AudioEngine::instance()->register_input_port (DataType::MIDI, X_("MMC in"), true);
        _mmc_out = AudioEngine::instance()->register_output_port (DataType::MIDI, X_("MMC out"), true);

        _scene_in  = AudioEngine::instance()->register_input_port (DataType::MIDI, X_("Scene in"), true);
        _scene_out = AudioEngine::instance()->register_output_port (DataType::MIDI, X_("Scene out"), true);

        /* XXX nasty type conversion needed because of the mixed inheritance
         * required to integrate MIDI::IPMidiPort and ARDOUR::AsyncMIDIPort.
         *
         * At some point, we'll move IPMidiPort into Ardour and make it 
         * inherit from ARDOUR::MidiPort not MIDI::Port, and then this
         * mess can go away 
         */

        _midi_input_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_midi_in).get();
        _midi_output_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_midi_out).get();

        _mmc_input_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_mmc_in).get();
        _mmc_output_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_mmc_out).get();

        _scene_input_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_scene_in).get();
        _scene_output_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_scene_out).get();

        /* Now register ports used for sync (MTC and MIDI Clock)
         */

        boost::shared_ptr<ARDOUR::Port> p;

        p = AudioEngine::instance()->register_input_port (DataType::MIDI, X_("MTC in"));
        _mtc_input_port = boost::dynamic_pointer_cast<MidiPort> (p);
        p = AudioEngine::instance()->register_output_port (DataType::MIDI, X_("MTC out"));
        _mtc_output_port= boost::dynamic_pointer_cast<MidiPort> (p);

        p = AudioEngine::instance()->register_input_port (DataType::MIDI, X_("MIDI Clock in"));
        _midi_clock_input_port = boost::dynamic_pointer_cast<MidiPort> (p);
        p = AudioEngine::instance()->register_output_port (DataType::MIDI, X_("MIDI Clock out"));
        _midi_clock_output_port= boost::dynamic_pointer_cast<MidiPort> (p);

        /* These ports all need their incoming data handled in
         * Port::cycle_start() and so ...
         */

        _mtc_input_port->set_always_parse (true);
        _mtc_output_port->set_always_parse (true);
        _midi_clock_input_port->set_always_parse (true);
        _midi_clock_output_port->set_always_parse (true);
}

void
MidiPortManager::set_midi_port_states (const XMLNodeList&nodes)
{
        XMLProperty* prop;
        typedef map<std::string,boost::shared_ptr<Port> > PortMap;
        PortMap ports;
        const int version = 0;

        ports.insert (make_pair (_mtc_input_port->name(), _mtc_input_port));
        ports.insert (make_pair (_mtc_output_port->name(), _mtc_output_port));
        ports.insert (make_pair (_midi_clock_input_port->name(), _midi_clock_input_port));
        ports.insert (make_pair (_midi_clock_output_port->name(), _midi_clock_output_port));
        ports.insert (make_pair (_midi_input_port->name(), _midi_in));
        ports.insert (make_pair (_midi_output_port->name(), _midi_out));
        ports.insert (make_pair (_mmc_input_port->name(), _mmc_in));
        ports.insert (make_pair (_mmc_output_port->name(), _mmc_out));
        ports.insert (make_pair (_scene_output_port->name(), _scene_out));
        ports.insert (make_pair (_scene_input_port->name(), _scene_in));
        
        for (XMLNodeList::const_iterator n = nodes.begin(); n != nodes.end(); ++n) {
                if ((prop = (*n)->property (X_("name"))) == 0) {
                        continue;
                }

                PortMap::iterator p = ports.find (prop->value());
                if (p == ports.end()) {
                        continue;
                }
                
                p->second->set_state (**n, version);
        }
}

list<XMLNode*>
MidiPortManager::get_midi_port_states () const
{
        typedef map<std::string,boost::shared_ptr<Port> > PortMap;
        PortMap ports;
        list<XMLNode*> s;

        ports.insert (make_pair (_mtc_input_port->name(), _mtc_input_port));
        ports.insert (make_pair (_mtc_output_port->name(), _mtc_output_port));
        ports.insert (make_pair (_midi_clock_input_port->name(), _midi_clock_input_port));
        ports.insert (make_pair (_midi_clock_output_port->name(), _midi_clock_output_port));
        ports.insert (make_pair (_midi_input_port->name(), _midi_in));
        ports.insert (make_pair (_midi_output_port->name(), _midi_out));
        ports.insert (make_pair (_mmc_input_port->name(), _mmc_in));
        ports.insert (make_pair (_mmc_output_port->name(), _mmc_out));
        ports.insert (make_pair (_scene_output_port->name(), _scene_out));
        ports.insert (make_pair (_scene_input_port->name(), _scene_in));

        for (PortMap::const_iterator p = ports.begin(); p != ports.end(); ++p) {
                s.push_back (&p->second->get_state());
        }

        return s;
}