/* * Copyright (c) 2008 - 2009 * Jonathan Schleifer <js@webkeks.org> * * All rights reserved. * * This file is part of libobjfw. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE included in * the packaging of this file. */ #ifndef OF_CONFIGURED #error You are missing the libobjfw definitions! #error Please use objfw-config! #endif #include <stdint.h> #ifdef __GNUC__ #define OF_INLINE inline __attribute__((always_inline)) #define OF_LIKELY(cond) __builtin_expect(!!(cond), 1) #define OF_UNLIKELY(cond) __builtin_expect(!!(cond), 0) #else #define OF_INLINE inline #define OF_LIKELY(cond) cond #define OF_UNLIKELY(cond) cond #endif static OF_INLINE uint16_t OF_BSWAP16(uint16_t i) { i = (i & UINT16_C(0xFF00)) >> 8 | (i & UINT16_C(0x00FF)) << 8; return i; } static OF_INLINE uint32_t OF_BSWAP32(uint32_t i) { i = (i & UINT32_C(0xFF000000)) >> 24 | (i & UINT32_C(0x00FF0000)) >> 8 | (i & UINT32_C(0x0000FF00)) << 8 | (i & UINT32_C(0x000000FF)) << 24; return i; } static OF_INLINE uint64_t OF_BSWAP64(uint64_t i) { i = (i & UINT64_C(0xFF00000000000000)) >> 56 | (i & UINT64_C(0x00FF000000000000)) >> 40 | (i & UINT64_C(0x0000FF0000000000)) >> 24 | (i & UINT64_C(0x000000FF00000000)) >> 8 | (i & UINT64_C(0x00000000FF000000)) << 8 | (i & UINT64_C(0x0000000000FF0000)) << 24 | (i & UINT64_C(0x000000000000FF00)) << 40 | (i & UINT64_C(0x00000000000000FF)) << 56; return i; } #ifdef OF_BIG_ENDIAN static OF_INLINE void OF_BSWAP32_V(uint32_t *buf, size_t len) { while (len--) { *buf = OF_BSWAP32(*buf); buf++; } } #else #define OF_BSWAP32_V(buf, len) #endif #define OF_ROL(val, bits) \ (((val) << (bits)) | ((val) >> (32 - (bits)))) #define OF_HASH_INIT(hash) hash = 0 #define OF_HASH_ADD(hash, byte) \ { \ hash += byte; \ hash += (hash << 10); \ hash ^= (hash >> 6); \ } #define OF_HASH_FINALIZE(hash) \ { \ hash += (hash << 3); \ hash ^= (hash >> 11); \ hash += (hash << 15); \ }