57 lines
1.1 KiB
C

/*********************************************************************
* pnmio.h
*********************************************************************/
#ifndef _PNMIO_H_
#define _PNMIO_H_
#include <cstdio>
/**********
* With pgmReadFile and pgmRead, setting img to NULL causes memory
* to be allocated
*/
/**********
* used for reading from/writing to files
*/
unsigned char* pgmReadFile(
const char *fname,
unsigned char *img,
int *ncols,
int *nrows);
void pgmWriteFile(
const char *fname,
const unsigned char *img,
int ncols,
int nrows);
void ppmWriteFileRGB(
const char *fname,
const unsigned char *redimg,
const unsigned char *greenimg,
const unsigned char *blueimg,
int ncols,
int nrows);
/**********
* used for communicating with stdin and stdout
*/
unsigned char* pgmRead(
FILE *fp,
unsigned char *img,
int *ncols, int *nrows);
void pgmWrite(
FILE *fp,
const unsigned char *img,
int ncols,
int nrows);
void ppmWrite(
FILE *fp,
const unsigned char *redimg,
const unsigned char *greenimg,
const unsigned char *blueimg,
int ncols,
int nrows);
#endif