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#ifndef video4linux_h
#define video4linux_h
// video4linux.h
// nono - programme du robot 2004. {{{
//
// Copyright (C) 2004 Nicolas Schodet
//
// Robot APB Team/Efrei 2004.
//        Web: http://assos.efrei.fr/robot/
//      Email: robot AT efrei DOT fr
//
// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// }}}
#include "image/image_loader.h"

/// Class d'acc�s � Video4Linux.
class Video4Linux : public ImageLoader
{
  private:
    int fd_;
    int width_, height_;
    int bufsize_;
    ImageLoader::ColorSpace colorSpace_;
    bool rgb_;
    int brightness_, contrast_;
    int bpp_;
  public:
    /// Constructeur.
    Video4Linux (const char *dev, ImageLoader::ColorSpace colorSpace, int
		 brightness = 58000);
    /// Destructeur.
    ~Video4Linux (void);
    /// R�cup�re la taille de l'image.
    void getSize (int &width, int &height) const
      { width = width_; height = height_; }
    /// R�cup�re la taille du tampon.
    int getBufSize (void) const
      { return width_ * height_ * bpp_; }
    /// R�cup�re le format de l'image.
    ImageLoader::ColorSpace getColorSpace (void) const
      { return colorSpace_; }
    /// Lit une image, retourne le nombre d'octets lus.
    int read (void *buf, int size) const;
    /// Calibre la cam�ra.
    void calibrate (void);
  protected:
    /// Ouvre le p�riph�rique.
    void open (const char *dev);
    /// Ferme le p�riph�rique.
    void close (void);
};

#endif // video4linux_h