targa_io.c File Reference

#include <string.h>
#include <gandalf/image/io/targa_io.h>
#include <gandalf/image/io/image_io.h>
#include <gandalf/image/image_rgb_uint8.h>
#include <gandalf/image/image_rgba_uint8.h>
#include <gandalf/common/misc_error.h>

Defines
#define	TARGA_ID_LENGTH_OFFSET   0
#define	TARGA_COLOURMAP_TYPE_OFFSET   1
#define	TARGA_DATA_TYPE_OFFSET   2
#define	TARGA_COLOURMAP_ORIGIN_OFFSET   3
#define	TARGA_COLOURMAP_LENGTH_OFFSET   5
#define	TARGA_COLOURMAP_ENTRYSIZE_OFFSET   7
#define	TARGA_XORIGIN_OFFSET   8
#define	TARGA_YORIGIN_OFFSET   10
#define	TARGA_WIDTH_OFFSET   12
#define	TARGA_HEIGHT_OFFSET   14
#define	TARGA_PIXEL_SIZE_OFFSET   16
#define	TARGA_IMAGE_DESCRIPTOR_OFFSET   17
#define	TARGA_DATA_TYPE_MAPPED   1
#define	TARGA_DATA_TYPE_RGB   2
#define	TARGA_DATA_TYPE_RLE_MAPPED   9
#define	TARGA_DATA_TYPE_RLE_RGB   10
#define	BIG_BUFFER_SIZE   264
Functions
Gan_Bool	gan_image_is_targa (const unsigned char *magic_string, size_t length)
	Determines whether an image is a TARGA image using the magic number.
Gan_Image *	gan_read_targa_image_stream (FILE *infile, Gan_Image *image, const struct Gan_ImageReadControlStruct *ictrlstr, struct Gan_ImageHeaderStruct *header)
	Reads a RGB colour image file in TARGA format from a stream.
Gan_Image *	gan_read_targa_image (const char *filename, Gan_Image *image, const struct Gan_ImageReadControlStruct *ictrlstr, struct Gan_ImageHeaderStruct *header)
	Reads a RGB colour image file in TARGA format.
void	gan_initialise_targa_header_struct (Gan_TargaHeaderStruct *octrlstr)
	Initialises the output control structure for Targa files.
Gan_Bool	gan_write_targa_image_stream (FILE *outfile, const Gan_Image *image, Gan_Bool new_file, const struct Gan_ImageWriteControlStruct *octrlstr)
	Writes a RGB colour image to a file stream in TARGA format.
Gan_Bool	gan_write_targa_image (const char *filename, const Gan_Image *image, const struct Gan_ImageWriteControlStruct *octrlstr)
	Writes a RGB colour image file in TARGA format.

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Detailed Description

Module: TARGA format image file I/O functions

Part of: Gandalf Library

Version:

1.19

Date:

2006/03/15 14:09:07

Author:

pm

Copyright: (c) 2000 Imagineer Software Limited

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