#include <stdio.h>
#include <stdlib.h>
#include "png.h"
#include "readpng.h"

Macros
#define	png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)

Functions
void	readpng_version_info (void)

int	readpng_init (FILE infile, ulg pWidth, ulg *pHeight)

int	readpng_get_bgcolor (uch red, uch green, uch *blue)

uch *	readpng_get_image (double display_exponent, int pChannels, ulg pRowbytes)

void	readpng_cleanup (int free_image_data)

Variables
png_uint_32	width

png_uint_32	height

int	bit_depth

int	color_type

uch *	image_data = NULL

Macro Definition Documentation

◆ png_jmpbuf

#define png_jmpbuf ( png_ptr ) ((png_ptr)->jmpbuf)

Definition at line 64 of file readpng.c.

Referenced by readpng_get_bgcolor().

Function Documentation

◆ readpng_cleanup()

void readpng_cleanup ( int free_image_data )

Definition at line 296 of file readpng.c.

◆ readpng_get_bgcolor()

int readpng_get_bgcolor	(	uch *	red,
		uch *	green,
		uch *	blue
	)

Definition at line 154 of file readpng.c.

◆ readpng_get_image()

uch* readpng_get_image	(	double	display_exponent,
		int *	pChannels,
		ulg *	pRowbytes
	)

Definition at line 206 of file readpng.c.

◆ readpng_init()

int readpng_init	(	FILE *	infile,
		ulg *	pWidth,
		ulg *	pHeight
	)

Definition at line 87 of file readpng.c.

◆ readpng_version_info()

void readpng_version_info ( void )

Definition at line 76 of file readpng.c.

Variable Documentation

◆ bit_depth

png_infop png_uint_32 png_uint_32 int bit_depth

Definition at line 72 of file readpng.c.

Referenced by vl::savePNG(), and tt_face_load_strike_metrics().

◆ color_type

png_infop png_uint_32 png_uint_32 int int color_type

Definition at line 72 of file readpng.c.

◆ height

png_uint_32 height

Definition at line 71 of file readpng.c.

◆ image_data

uch* image_data = NULL

Definition at line 73 of file readpng.c.

Referenced by expand_bottom_edge(), and readpng_cleanup().

◆ width

png_uint_32 width