/*   
*   WritePPM Copyright (C) 2008-2009 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 <stdio.h>

/** 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
 */
int WritePPM(const char *filename, const unsigned char *buf, unsigned int width, unsigned int height)
{
FILE *fp = fopen(filename,"wb");
if(fp)
  {
  fprintf(fp, "P6\n%u %u\n255\n", width, height);
  fwrite(buf, width*3,height, fp);
  fclose(fp);
  return 1;
  }
else
 return 0;
}

/** 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
 */
int WritePGM(const char *filename, const unsigned char *buf, unsigned int width, unsigned int height)
{
FILE *fp = fopen(filename,"wb");
if(fp)
  {
  fprintf(fp, "P5\n%u %u\n255\n", width, height);
  fwrite(buf, width,height, fp);
  fclose(fp);
  return 1;
  }
else
 return 0;
}