/*   
*   writepnm.cpp Copyright (C) 2008-2010 Paolo Medici
*
*   This library is free software; you can redistribute it and/or modify it under the terms of the 
*    GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of 
*    the License, or (at your option) any later version.
*
*   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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
*/

#include <fstream>

/** Write a PPM file
 * @param filename a file 
 * @param buf an RGB buffer
 * @param width geometry of buffer
 * @param height geometry of buffer
 * @return true if file is created
 */
bool write_ppm(const char *filename, const unsigned char *buf, unsigned int width, unsigned int height)
{
std::ofstream out(filename, std::ios::out | std::ios::binary);
if(out)
  {
  out << "P6\n" << width << ' ' << height << "\n255\n";
  out.write(reinterpret_cast<const char *>(buf), width*height*3);
  return true;
  }
else
 return false;
}

/** Write a PGM file
 * @param filename a file 
 * @param buf an greyscale buffer
 * @param width geometry of buffer
 * @param height geometry of buffer
 * @return true if file is created
 */
bool write_pgm(const char *filename, const unsigned char *buf, unsigned int width, unsigned int height)
{
std::ofstream out(filename, std::ios::out | std::ios::binary);
if(out)
  {
  out << "P5\n" << width << ' ' << height << "\n255\n";
  out.write(reinterpret_cast<const char *>(buf), width*height);
  return true;
  }
else
 return false;
}