| /* |
| * Copyright (c) 2013 Travis Geiselbrecht |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files |
| * (the "Software"), to deal in the Software without restriction, |
| * including without limitation the rights to use, copy, modify, merge, |
| * publish, distribute, sublicense, and/or sell copies of the Software, |
| * and to permit persons to whom the Software is furnished to do so, |
| * subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| #ifndef __BYTES_H |
| #define __BYTES_H |
| |
| #include <endian.h> |
| #include <stdint.h> |
| |
| #if BYTE_ORDER == BIG_ENDIAN |
| #define bytes_read_u16(x) bytes_read_u16_be(x) |
| #define bytes_read_u24(x) bytes_read_u24_be(x) |
| #define bytes_read_u32(x) bytes_read_u32_be(x) |
| #define bytes_write_u16(x, y) bytes_write_u16_be(x, y) |
| #define bytes_write_u24(x, y) bytes_write_u24_be(x, y) |
| #define bytes_write_u32(x, y) bytes_write_u32_be(x, y) |
| #elif BYTE_ORDER == LITTLE_ENDIAN |
| #define bytes_read_u16(x) bytes_read_u16_le(x) |
| #define bytes_read_u24(x) bytes_read_u24_le(x) |
| #define bytes_read_u32(x) bytes_read_u32_le(x) |
| #define bytes_write_u16(x, y) bytes_write_u16_le(x, y) |
| #define bytes_write_u24(x, y) bytes_write_u24_le(x, y) |
| #define bytes_write_u32(x, y) bytes_write_u32_le(x, y) |
| #else |
| #error "Endianness not defined!" |
| #endif |
| |
| |
| // Big endian interfaces |
| uint16_t bytes_read_u16_be(const uint8_t *buf); |
| uint32_t bytes_read_u24_be(const uint8_t *buf); |
| uint32_t bytes_read_u32_be(const uint8_t *buf); |
| |
| uint8_t* bytes_write_u16_be(uint8_t *buf, uint16_t val); |
| uint8_t* bytes_write_u24_be(uint8_t *buf, uint32_t val); |
| uint8_t* bytes_write_u32_be(uint8_t *buf, uint32_t val); |
| |
| // Little endian interfaces |
| uint16_t bytes_read_u16_le(const uint8_t *buf); |
| uint32_t bytes_read_u24_le(const uint8_t *buf); |
| uint32_t bytes_read_u32_le(const uint8_t *buf); |
| |
| uint8_t* bytes_write_u16_le(uint8_t *buf, uint16_t val); |
| uint8_t* bytes_write_u24_le(uint8_t *buf, uint32_t val); |
| uint8_t* bytes_write_u32_le(uint8_t *buf, uint32_t val); |
| |
| // Bit swapping interfaces |
| uint8_t bytes_swap_bits_u8(uint8_t val); |
| uint16_t bytes_swap_bits_u16(uint16_t val); |
| uint32_t bytes_swap_bits_u24(uint32_t val); |
| uint32_t bytes_swap_bits_u32(uint32_t val); |
| |
| #endif |
| |