byte_swap.h File Reference

Byte swapping utilities for endianness conversion. More...

#include <cstdint>
#include <cstring>
#include <span>
#include <vector>
#include "simd/simd_utils.h"

Include dependency graph for byte_swap.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Namespaces
namespace	kcenon
namespace	kcenon::pacs
namespace	kcenon::pacs::encoding

Functions
Single Value Byte Swapping
constexpr uint16_t	kcenon::pacs::encoding::byte_swap16 (uint16_t value) noexcept
	Swaps bytes in a 16-bit value.
constexpr uint32_t	kcenon::pacs::encoding::byte_swap32 (uint32_t value) noexcept
	Swaps bytes in a 32-bit value.
constexpr uint64_t	kcenon::pacs::encoding::byte_swap64 (uint64_t value) noexcept
	Swaps bytes in a 64-bit value.
Big Endian Read/Write Functions
constexpr uint16_t	kcenon::pacs::encoding::read_be16 (const uint8_t *data) noexcept
	Reads a 16-bit value from big-endian bytes.
constexpr uint32_t	kcenon::pacs::encoding::read_be32 (const uint8_t *data) noexcept
	Reads a 32-bit value from big-endian bytes.
constexpr uint64_t	kcenon::pacs::encoding::read_be64 (const uint8_t *data) noexcept
	Reads a 64-bit value from big-endian bytes.
void	kcenon::pacs::encoding::write_be16 (std::vector< uint8_t > &buffer, uint16_t value)
	Writes a 16-bit value in big-endian byte order.
void	kcenon::pacs::encoding::write_be32 (std::vector< uint8_t > &buffer, uint32_t value)
	Writes a 32-bit value in big-endian byte order.
void	kcenon::pacs::encoding::write_be64 (std::vector< uint8_t > &buffer, uint64_t value)
	Writes a 64-bit value in big-endian byte order.
Bulk Byte Swapping for VR Types
std::vector< uint8_t >	kcenon::pacs::encoding::swap_ow_bytes (std::span< const uint8_t > data)
	Swaps bytes in-place for OW (Other Word) data.
std::vector< uint8_t >	kcenon::pacs::encoding::swap_ol_bytes (std::span< const uint8_t > data)
	Swaps bytes in-place for OL (Other Long) data.
std::vector< uint8_t >	kcenon::pacs::encoding::swap_of_bytes (std::span< const uint8_t > data)
	Swaps bytes in-place for OF (Other Float) data.
std::vector< uint8_t >	kcenon::pacs::encoding::swap_od_bytes (std::span< const uint8_t > data)
	Swaps bytes in-place for OD (Other Double) data.
std::vector< uint8_t >	kcenon::pacs::encoding::swap_at_bytes (std::span< const uint8_t > data)
	Swaps bytes for AT (Attribute Tag) data.
Numeric Value Byte Swapping
std::vector< uint8_t >	kcenon::pacs::encoding::swap_us_bytes (std::span< const uint8_t > data)
	Swaps bytes for US (Unsigned Short) value in raw data.
std::vector< uint8_t >	kcenon::pacs::encoding::swap_ss_bytes (std::span< const uint8_t > data)
	Swaps bytes for SS (Signed Short) value in raw data.
std::vector< uint8_t >	kcenon::pacs::encoding::swap_ul_bytes (std::span< const uint8_t > data)
	Swaps bytes for UL (Unsigned Long) value in raw data.
std::vector< uint8_t >	kcenon::pacs::encoding::swap_sl_bytes (std::span< const uint8_t > data)
	Swaps bytes for SL (Signed Long) value in raw data.
std::vector< uint8_t >	kcenon::pacs::encoding::swap_fl_bytes (std::span< const uint8_t > data)
	Swaps bytes for FL (Float) value in raw data.
std::vector< uint8_t >	kcenon::pacs::encoding::swap_fd_bytes (std::span< const uint8_t > data)
	Swaps bytes for FD (Double) value in raw data.

Detailed Description

Byte swapping utilities for endianness conversion.

This file provides constexpr functions for converting between little-endian and big-endian byte ordering. Bulk operations use SIMD optimization when available (SSE/AVX on x86, NEON on ARM).

See also

DICOM PS3.5 Section 7 - Data Set Encoding

Author

kcenon

Since

1.0.0

Definition in file byte_swap.h.