simage_png.c File Reference

#include <config.h>
#include <simage_png.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <png.h>

Macros
#define	ERR_MEM   2
#define	ERR_MEM_WRITE   6
#define	ERR_NO_ERROR   0
#define	ERR_OPEN   1
#define	ERR_OPEN_WRITE   4
#define	ERR_PNGLIB   3
#define	ERR_PNGLIB_WRITE   5

Functions
static void	err_callback (png_structp ps, png_const_charp pc)
int	simage_png_error (char *buffer, int buflen)
int	simage_png_identify (const char *ptr, const unsigned char *header, int headerlen)
unsigned char *	simage_png_load (const char *filename, int *width_ret, int *height_ret, int *numComponents_ret)
int	simage_png_save (const char *filename, const unsigned char *bytes, int width, int height, int numcomponents)
static void	user_flush_cb (png_structp png_ptr)
static void	user_read_cb (png_structp png_ptr, png_bytep data, png_uint_32 length)
static void	user_write_cb (png_structp png_ptr, png_bytep data, png_uint_32 length)
static void	warn_callback (png_structp ps, png_const_charp pc)

Variables
static int	pngerror = 0
static jmp_buf	setjmp_buffer

Macro Definition Documentation

ERR_MEM

#define ERR_MEM   2

ERR_MEM_WRITE

#define ERR_MEM_WRITE   6

ERR_NO_ERROR

#define ERR_NO_ERROR   0

ERR_OPEN

#define ERR_OPEN   1

ERR_OPEN_WRITE

#define ERR_OPEN_WRITE   4

ERR_PNGLIB

#define ERR_PNGLIB   3

ERR_PNGLIB_WRITE

#define ERR_PNGLIB_WRITE   5

Function Documentation

err_callback()

static void err_callback ( png_structp ps, png_const_charp pc )

static

simage_png_error()

int simage_png_error	(	char *	buffer,
		int	buflen )

simage_png_identify()

int simage_png_identify	(	const char *	ptr,
		const unsigned char *	header,
		int	headerlen )

simage_png_load()

unsigned char * simage_png_load	(	const char *	filename,
		int *	width_ret,
		int *	height_ret,
		int *	numComponents_ret )

simage_png_save()

int simage_png_save	(	const char *	filename,
		const unsigned char *	bytes,
		int	width,
		int	height,
		int	numcomponents )

user_flush_cb()

static void user_flush_cb ( png_structp png_ptr )

static

user_read_cb()

static void user_read_cb ( png_structp png_ptr, png_bytep data, png_uint_32 length )

static

user_write_cb()

static void user_write_cb ( png_structp png_ptr, png_bytep data, png_uint_32 length )

static

warn_callback()

static void warn_callback ( png_structp ps, png_const_charp pc )

static

Variable Documentation

pngerror

int pngerror = 0

static

setjmp_buffer

jmp_buf setjmp_buffer

static