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#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;
}
static OF_INLINE void
OF_BSWAP32_V(uint32_t *buf, size_t len)
{
while (len--) {
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#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
#ifdef __GNUC__
#if defined(__amd64__) || defined(__x86_64__)
#define OF_AMD64_ASM
#elif defined(__i386__)
#define OF_X86_ASM
#endif
#endif
static OF_INLINE uint16_t
OF_BSWAP16(uint16_t i)
{
#if defined(OF_X86_ASM) || defined(OF_AMD64_ASM)
asm("xchgb %h0, %b0" : "=Q"(i) : "Q"(i));
#else
i = (i & UINT16_C(0xFF00)) >> 8 |
(i & UINT16_C(0x00FF)) << 8;
#endif
return i;
}
static OF_INLINE uint32_t
OF_BSWAP32(uint32_t i)
{
#if defined(OF_X86_ASM) || defined(OF_AMD64_ASM)
asm("bswap %0" : "=q"(i) : "q"(i));
#else
i = (i & UINT32_C(0xFF000000)) >> 24 |
(i & UINT32_C(0x00FF0000)) >> 8 |
(i & UINT32_C(0x0000FF00)) << 8 |
(i & UINT32_C(0x000000FF)) << 24;
#endif
return i;
}
static OF_INLINE uint64_t
OF_BSWAP64(uint64_t i)
{
#if defined(OF_AMD64_ASM)
asm("bswap %0" : "=r"(i) : "r"(i));
#elif defined(OF_X86_ASM)
asm("bswap %%eax\n\t"
"bswap %%edx\n\t"
"xchgl %%eax, %%edx" : "=A"(i): "A"(i));
#else
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;
#endif
return i;
}
static OF_INLINE void
OF_BSWAP32_V(uint32_t *buf, size_t len)
{
while (len--) {
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