tracker.h

/* Copyright (c) 2006, Dustin Wueest <wueest@dustin.ch>
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 2.1 as published
 * by the Free Software Foundation.
 *  
 * This library 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 Lesser General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef FOB_TRACKER_H
#define FOB_TRACKER_H

#include <eq/eq.h>
#include <string>

namespace eqPly
{
    class Tracker
    {
    public:
        Tracker();

        bool init( const std::string& port );

        void setWorldToEmitter( const eq::Matrix4f& matrix )
            { _worldToEmitter = matrix; }

        void setSensorToObject( const eq::Matrix4f& matrix )
            { _sensorToObject = matrix; }

        bool isRunning() const { return _running; }

        bool update();

        const eq::Matrix4f& getMatrix() const { return _matrix; }

    private:
        bool _update(); //update without state checking
        bool _read( unsigned char* buffer, const size_t size,
                    const unsigned long int timeout );

        bool  _running;

        int   _fd;

        eq::Matrix4f _matrix;

        eq::Matrix4f _worldToEmitter;
        eq::Matrix4f _sensorToObject;
    };
}

#endif // FOB_TRACKER_H