// jpgimage.hpp -- image data from jpeg file
//
// Written by Frederic Bouvier, started October 2001.
//
// Copyright (C) 2001  Frederic Bouvier - fredb@users.sourceforge.net
//
// 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: jpgimage.hpp,v 1.4 2005/05/09 07:02:06 fredb Exp $

#ifndef jpgimage_h
#define jpgimage_h 1

#include <stdio.h>
extern "C" {
   #ifdef FAR
   #undef FAR
   #endif
   #include "jpeglib.h"
   }

// image
#include "image.hpp"

class FGSD_JPEGImage : public FGSD_Image
{
   public:
      FGSD_JPEGImage(bool __reverted = false);
      ~FGSD_JPEGImage ();

      bool load (const char *__fileName);
      bool loadFromBuffer( const unsigned char *__buffer, size_t __len );
      bool save (const char *__fileName);

   private:
      static void jpeg_mem_src(j_decompress_ptr cinfo, const unsigned char *__buffer, size_t __len );
      static void init_source(j_decompress_ptr cinfo);
      static boolean fill_input_buffer(j_decompress_ptr cinfo);
      static void skip_input_data(j_decompress_ptr cinfo, long num_bytes);
      static void term_source(j_decompress_ptr cinfo);

   private:
      bool _reverted;
};

#endif