utility.hpp File Reference

Functions relating to the needs of images in the program. More...

#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <cctype>
#include <string>
#include <vector>
#include <zlib.h>
#include <facade/platform.hpp>

Go to the source code of this file.

Namespaces
namespace	facade

Functions
EXPORT std::uint16_t	facade::endian_swap_16 (std::uint16_t value)
	Swap the endianness of a 16-bit value.
EXPORT std::uint32_t	facade::endian_swap_32 (std::uint32_t value)
	Swap the endianness of a 32-bit value.
EXPORT std::uint32_t	facade::crc32 (const void *ptr, std::size_t size, std::uint32_t init_crc=0)
	Calculate the CRC32 value of a given buffer.
EXPORT std::vector< std::uint8_t >	facade::compress (const void *ptr, std::size_t size, int level)
	Compress the given data buffer with the given compression level.
EXPORT std::vector< std::uint8_t >	facade::compress (const std::vector< std::uint8_t > &vec, int level)
	Compress the given byte vector with the given compression level.
EXPORT std::vector< std::uint8_t >	facade::decompress (const void *ptr, std::size_t size)
	Decompress the given data buffer with zlib's inflate algorithm.
EXPORT std::vector< std::uint8_t >	facade::decompress (const std::vector< std::uint8_t > &vec)
	Decompress the given data vector with zlib's inflate algorithm.
EXPORT bool	facade::is_base64_string (const std::string &base64)
	Determine if the string is a base64 string.
EXPORT std::string	facade::base64_encode (const void *ptr, std::size_t size)
	Base64 encode the given buffer data.
EXPORT std::string	facade::base64_encode (const std::vector< std::uint8_t > &data)
	Base64 encode the given data vector.
EXPORT std::vector< std::uint8_t >	facade::base64_decode (const std::string &data)
	Base64-decode the given string into a byte vector.
EXPORT std::vector< std::uint8_t >	facade::read_file (const std::string &filename)
	Read a file into a byte vector.
EXPORT void	facade::write_file (const std::string &filename, const void *ptr, std::size_t size)
	Write a given buffer to the given filename.
EXPORT void	facade::write_file (const std::string &filename, const std::vector< std::uint8_t > &vec)
	Write a given byte vector to the given filename.

Variables
const std::uint32_t	facade::CRC32_TABLE [256]
	The table used for calculating a CRC32 value.
const std::string	facade::BASE64_ALPHA
	The alphabet of base64 data.

Detailed Description

Functions relating to the needs of images in the program.

This file features code related to various functionality of the program, such as PNG's needs for compression utilities and CRC32 calculation.