ppmlib.h File Reference

#include "WImage/miscdefs.h"
#include <stdio.h>

Include dependency graph for ppmlib.h:

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Functions
pixel *	ppm_read (const char *fname, int *height, int *width, int *cmax)
int	ppm_write (const char *fname, pixel *pic, int height, int width, int cmax)
pixel *	ppm_fromStream (FILE *in, int *height, int *width, int *cmax)
int	ppm_toStream (FILE *out, pixel *pic, int height, int width, int cmax)

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Function Documentation

pixel* ppm_fromStream	(	FILE *	in,
		int *	height,
		int *	width,
		int *	cmax
	)

Read a PPM file from an open stream.

Parameters:

in	the open input stream
height	the number of pixel rows, returned by the function
width	the number of pixel cols, returned by the function
cmax	the number of colors, returned by the function

Returns:

an array containing the pixels as RGB triples if successful else NULL

int ppm_toStream	(	FILE *	out,
		pixel *	pic,
		int	height,
		int	width,
		int	cmax
	)

Write a PPM file to an open stream

Parameters:

out	the open output stream
pic	the image as an array of RGB triples
height	the number of pixel rows
width	the number of pixel cols
cmax	the maximum color value

Returns:

0 if successful else -1

int ppm_write	(	const char *	fname,
		pixel *	pic,
		int	height,
		int	width,
		int	cmax
	)

Write a PPM file to the filesystem

Parameters:

fname	the filename
pic	the image as an array of RGB triples
height	the number of pixel rows
width	the number of pixel cols
cmax	the maximum color value

Returns:

0 if successful else -1