rgbe.cpp File Reference

Utilities for reading and writing Ward's rgbe image format. More...

#include "rgbe.h"
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

Go to the source code of this file.

Defines
#define	INLINE
#define	RGBE_DATA_RED   0
#define	RGBE_DATA_GREEN   1
#define	RGBE_DATA_BLUE   2
#define	RGBE_DATA_SIZE   3
#define	MINRUNLENGTH   4
Enumerations
enum	rgbe_error_codes { rgbe_read_error, rgbe_write_error, rgbe_format_error, rgbe_memory_error }
Functions
int	RGBE_WriteHeader (FILE *fp, int width, int height, rgbe_header_info *info)
	writes headers
int	RGBE_ReadHeader (FILE *fp, int *width, int *height, rgbe_header_info *info)
	reads headers
int	RGBE_WritePixels (FILE *fp, const float *data, int numpixels)
	writes pixels
int	RGBE_ReadPixels (FILE *fp, float *data, int numpixels)
	reads pixels
int	RGBE_WritePixels_RLE (FILE *fp, float *data, int scanline_width, int num_scanlines)
	writes run length encoded files
int	RGBE_ReadPixels_RLE (FILE *fp, float *data, int scanline_width, int num_scanlines)
	reads run length encoded files

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Detailed Description

Utilities for reading and writing Ward's rgbe image format.

Author:

Bruce Walter (http://www.graphics.cornell.edu/~bjw/)

Travis Fischer (fisch0920@gmail.com)

Date:

January 2009

Note:

This code is from http://www.graphics.cornell.edu/~bjw/rgbe/

also http://www.graphics.cornell.edu/online/formats/rgbe/

Definition in file rgbe.cpp.

---

Define Documentation

#define INLINE

Definition at line 45 of file rgbe.cpp.

#define MINRUNLENGTH   4

#define RGBE_DATA_BLUE   2

Definition at line 51 of file rgbe.cpp.

#define RGBE_DATA_GREEN   1

Definition at line 50 of file rgbe.cpp.

#define RGBE_DATA_RED   0

Definition at line 49 of file rgbe.cpp.

#define RGBE_DATA_SIZE   3

Definition at line 53 of file rgbe.cpp.

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Enumeration Type Documentation

enum rgbe_error_codes

Enumerator:

rgbe_read_error
rgbe_write_error
rgbe_format_error
rgbe_memory_error

Definition at line 55 of file rgbe.cpp.

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Function Documentation

int RGBE_ReadHeader	(	FILE *	fp,
		int *	width,
		int *	height,
		rgbe_header_info *	info
	)

reads headers

Note:

you may set rgbe_header_info to null if you want to

Definition at line 149 of file rgbe.cpp.

int RGBE_ReadPixels	(	FILE *	fp,
		float *	data,
		int	numpixels
	)

reads pixels

Note:

can read pixels in chunks of any size including single pixels

Definition at line 232 of file rgbe.cpp.

int RGBE_ReadPixels_RLE	(	FILE *	fp,
		float *	data,
		int	scanline_width,
		int	num_scanlines
	)

reads run length encoded files

Note:

must be called to read whole scanlines

Definition at line 349 of file rgbe.cpp.

int RGBE_WriteHeader	(	FILE *	fp,
		int	width,
		int	height,
		rgbe_header_info *	info
	)

writes headers

Note:

you may set rgbe_header_info to null if you want to

Definition at line 124 of file rgbe.cpp.

int RGBE_WritePixels	(	FILE *	fp,
		const float *	data,
		int	numpixels
	)

writes pixels

Note:

can write pixels in chunks of any size including single pixels

Definition at line 217 of file rgbe.cpp.

int RGBE_WritePixels_RLE	(	FILE *	fp,
		float *	data,
		int	scanline_width,
		int	num_scanlines
	)

writes run length encoded files

Note:

must be called to write whole scanlines

Definition at line 303 of file rgbe.cpp.