png_io.c File Reference

#include <gandalf/image/io/png_io.h>
#include <gandalf/image/io/image_io.h>
#include <gandalf/image/image_bit.h>
#include <gandalf/common/misc_error.h>
#include <gandalf/common/compare.h>
#include <png.h>

Functions
Gan_Bool	gan_image_is_png (const unsigned char *magic_string, size_t length)
	Determines whether an image is a PNG image using the magic number.
Gan_Image *	gan_read_png_image_stream (FILE *infile, Gan_Image *image, const struct Gan_ImageReadControlStruct *ictrlstr, struct Gan_ImageHeaderStruct *header)
	Reads an image file in PNG format from a file stream.
Gan_Image *	gan_read_png_image (const char *filename, Gan_Image *image, const struct Gan_ImageReadControlStruct *ictrlstr, struct Gan_ImageHeaderStruct *header)
	Reads an image file in PNG format.
void	gan_initialise_png_header_struct (Gan_PNGHeaderStruct *octrlstr)
	Initialises the write control structure for PNG files.
Gan_Bool	gan_write_png_image_stream (FILE *outfile, const Gan_Image *image, Gan_Bool new_file, const struct Gan_ImageWriteControlStruct *octrlstr)
	Writes an image file to a stream in PNG format.
Gan_Bool	gan_write_png_image (const char *filename, const Gan_Image *image, const struct Gan_ImageWriteControlStruct *octrlstr)
	Writes an image file in PNG format.

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Detailed Description

Module: PNG format image file I/O functions

Part of: Gandalf Library

Version:

1.52

Date:

2006/03/15 14:09:07

Author:

pm

Copyright: (c) 2000 Imagineer Software Limited

Note:

: Works with the libpng & lz libraries

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