libpngapi.h File Reference

Header file defining the LibPNG interface API. More...

#include <setjmp.h>
#include "png.h"

Data Structures
struct	sw_libpng_api_20201229
	The LibPNG API version 20201229. More...

Macros
#define	png_sig_cmp   libpng_api->png_sig_cmp
	Check PNG signature bytes to see if it's a PNG file. More...
#define	png_set_longjmp_fn   libpng_api->png_set_longjmp_fn
	Set a callback that will be used to catch unrecoverable errors. More...
#define	png_longjmp   libpng_api->png_longjmp
	Invoke the LibPNG error callback, with an error value . More...
#define	png_error   libpng_api->png_error
	Invoke a LibPNG error. More...
#define	png_create_info_struct   libpng_api->png_create_info_struct
	Create a PNG information structure. More...
#define	png_create_read_struct_2   libpng_api->png_create_read_struct_2
	Create a structure handle for reading a PNG image. More...
#define	png_destroy_read_struct   libpng_api->png_destroy_read_struct
	Destroy a PNG structure handle and associated information structures. More...
#define	png_get_IHDR   libpng_api->png_get_IHDR
	Get header information from a PNG image. More...
#define	png_get_color_type   libpng_api->png_get_color_type
	Get the color type from a PNG image. More...
#define	png_get_iCCP   libpng_api->png_get_iCCP
	Get the ICC profile information from a PNG image. More...
#define	png_get_io_ptr   libpng_api->png_get_io_ptr
	Get the reader/writer I/O data pointer. More...
#define	png_get_pHYs   libpng_api->png_get_pHYs
	Get the image resolution information from a PNG image. More...
#define	png_get_rowbytes   libpng_api->png_get_rowbytes
	Get the number of bytes to store a transformed row of a PNG image. More...
#define	png_get_tRNS   libpng_api->png_get_tRNS
	Get the transparency information from a PNG image. More...
#define	png_get_valid   libpng_api->png_get_valid
	Determine if one or more information chunks are valid. More...
#define	png_read_image   libpng_api->png_read_image
	Read all of the data in an image. More...
#define	png_read_info   libpng_api->png_read_info
	Read the information chunks from an image. More...
#define	png_read_row   libpng_api->png_read_row
	Read one row of data from an image. More...
#define	png_read_update_info   libpng_api->png_read_update_info
	Update the PNG information structure after setting transformations. More...
#define	png_set_interlace_handling   libpng_api->png_set_interlace_handling
	Request that LibPNG handles de-interlacing. More...
#define	png_set_invert_alpha   libpng_api->png_set_invert_alpha
	Request that LibPNG invert opacity to transparency. More...
#define	png_set_palette_to_rgb   libpng_api->png_set_palette_to_rgb
	Request that LibPNG expands palettized images to RGB. More...
#define	png_set_read_fn   libpng_api->png_set_read_fn
	Set a callback function and data pointer to read PNG images. More...
#define	png_set_strip_alpha   libpng_api->png_set_strip_alpha
	Request that LibPNG removes the alpha channel from transformed data. More...
#define	png_set_swap_alpha   libpng_api->png_set_swap_alpha
	Request that LibPNG swaps the alpha channel in transformed data from RGBA to ARGB or vice-versa. More...
#define	png_set_tRNS_to_alpha   libpng_api->png_set_tRNS_to_alpha
	Request that LibPNG expands tRNS chunk to a full alpha channel in transformed data. More...
#define	png_create_write_struct_2   libpng_api->png_create_write_struct_2
	Create a structure handle for writing a PNG image. More...
#define	png_destroy_write_struct   libpng_api->png_destroy_write_struct
	Destroy a PNG structure handle and associated information structures. More...
#define	png_write_info   libpng_api->png_write_info
	Write information chunks to a PNG image. More...
#define	png_write_row   libpng_api->png_write_row
	Write a row of data to a PNG image. More...
#define	png_write_end   libpng_api->png_write_end
	Finish writing a PNG image, including any information comments. More...
#define	png_set_write_fn   libpng_api->png_set_write_fn
	Set a callback function and data pointer to write PNG images. More...
#define	png_set_IHDR   libpng_api->png_set_IHDR
	Set the header information for a PNG image. More...
#define	png_set_compression_level   libpng_api->png_set_compression_level
	Set the compression level of a PNG image. More...
#define	png_set_text   libpng_api->png_set_text
	Set a text comment for a PNG image. More...

Detailed Description

Header file defining the LibPNG interface API.

Copyright (C) 2023 Global Graphics Software Ltd. All rights reserved. This source code contains the confidential and trade secret information of Global Graphics Software Ltd. It may not be used, copied or distributed for any reason except as set forth in the applicable Global Graphics license agreement.