/* Copyright (C) 2002-2003 RealVNC Ltd.  All Rights Reserved.
 *    
 * This 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 software 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 software; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
 * USA.
 */
//
// Image.cxx
//


#include <stdio.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/stat.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/extensions/XShm.h>
#include "Image.h"
#include <list>
#include <sys/ioctl.h>
#include <unistd.h> 
#include <fcntl.h>

class ImageCleanup {
public:
  std::list<Image*> images;

  ~ImageCleanup()
  {
    fprintf(stderr,"~ImageCleanup called\n");

    while (!images.empty()) {
      delete images.front();
    }
  }
};

ImageCleanup imageCleanup;

Image::Image(int width, int height)
  : data(0)
{
  data = new char[width*height*4];
  
  //default image will be three lines across the screen.
  this->width = width;
  this->height = height;
  
  for (int i = 0; i < width*(height/3)*4; i++) {
    if ((i % 4) == 0){
      data[i] = 255;
    }
  }
  for (int i = width*(height/3)*4 + 1; i < width*(2*height/3)*4; i++) {
    if (((i + 3) % 4) == 0){
      data[i] = 255;
    }
  }
  for (int i = width*(2*height/3)*4 + 1; i < width*(height)*4; i++) {
    if (((i + 2) % 4) == 0){
      data[i] = 255;
    }
  }    
}

Image::~Image()
{
  delete [] data;
}