MIDIEvent.cpp

Go to the documentation of this file.

/* This file is part of Evoral.
 * Copyright (C) 2008 David Robillard <http://drobilla.net>
 * Copyright (C) 2000-2008 Paul Davis
 *
 * Evoral 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.
 *
 * Evoral 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 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.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <string>
#include "evoral/MIDIEvent.hpp"
#ifdef EVORAL_MIDI_XML
        #include "pbd/xml++.h"
#endif

using namespace std;

namespace Evoral {

#ifdef EVORAL_MIDI_XML

template<typename Time>
MIDIEvent<Time>::MIDIEvent(const XMLNode& event)
  : Event<Time>()
{
        string name = event.name();

        if (name == "ControlChange") {
                this->_buf = (uint8_t*) ::malloc(3);
                this->_owns_buf = true;
                set_type(MIDI_CMD_CONTROL);

                set_cc_number(atoi(event.property("Control")->value().c_str()));
                set_cc_value (atoi(event.property("Value")->value().c_str()));
        } else if (name == "ProgramChange") {
                this->_buf = (uint8_t*) ::malloc(2);
                this->_owns_buf = true;
                set_type(MIDI_CMD_PGM_CHANGE);

                set_pgm_number(atoi(event.property("Number")->value().c_str()));
        }
}


template<typename Time>
boost::shared_ptr<XMLNode>
MIDIEvent<Time>::to_xml() const
{
        XMLNode *result = 0;

        switch (type()) {
        case MIDI_CMD_CONTROL:
                result = new XMLNode("ControlChange");
                result->add_property("Channel", long(channel()));
                result->add_property("Control", long(cc_number()));
                result->add_property("Value",   long(cc_value()));
                break;

        case MIDI_CMD_PGM_CHANGE:
                result = new XMLNode("ProgramChange");
                result->add_property("Channel", long(channel()));
                result->add_property("Number",  long(pgm_number()));
                break;

        case MIDI_CMD_NOTE_ON:
                result = new XMLNode("NoteOn");
                result->add_property("Channel", long(channel()));
                result->add_property("Note",  long(note()));
                result->add_property("Velocity",  long(velocity()));
                break;

        case MIDI_CMD_NOTE_OFF:
                result = new XMLNode("NoteOff");
                result->add_property("Channel", long(channel()));
                result->add_property("Note",  long(note()));
                result->add_property("Velocity",  long(velocity()));
                break;

        case MIDI_CMD_BENDER:
                result = new XMLNode("PitchBendChange");
                result->add_property("Channel", long(channel()));
                result->add_property("Value",  long(pitch_bender_value()));
                break;

        default:
                // The implementation is continued as needed
                result = new XMLNode("NotImplemented");
                break;
        }

        return boost::shared_ptr<XMLNode>(result);
}

#endif // EVORAL_MIDI_XML

template class MIDIEvent<Evoral::Beats>;

} // namespace Evoral