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#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))
# define OF_CONST_FUNC __attribute__((__const__))
# define OF_NO_RETURN_FUNC __attribute__((__noreturn__))
# define OF_WEAK_REF(sym) __attribute__((__weakref__(sym)))
# define OF_VISIBILITY_HIDDEN __attribute__((__visibility__("hidden")))
#else
# define OF_INLINE inline
# define OF_LIKELY(cond) (cond)
# define OF_UNLIKELY(cond) (cond)
# define OF_CONST_FUNC
# define OF_NO_RETURN_FUNC
# define OF_WEAK_REF(sym)
# define OF_VISIBILITY_HIDDEN
#endif
#if __STDC_VERSION__ >= 201112L
# define OF_ALIGN(size) _Alignas(size)
# define OF_ALIGNOF(type) _Alignof(type)
# define OF_ALIGNAS(type) _Alignas(type)
#else
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static void __attribute__((__constructor__(prio))) \
OF_PREPROCESSOR_CONCAT(constructor, __LINE__)(void)
#define OF_DESTRUCTOR(prio) \
static void __attribute__((__destructor__(prio))) \
OF_PREPROCESSOR_CONCAT(destructor, __LINE__)(void)
static OF_INLINE uint16_t OF_CONST_FUNC
OFByteSwap16Const(uint16_t i)
_OFByteSwap16Const(uint16_t i)
{
return (i & UINT16_C(0xFF00)) >> 8 | (i & UINT16_C(0x00FF)) << 8;
}
static OF_INLINE uint32_t OF_CONST_FUNC
OFByteSwap32Const(uint32_t i)
_OFByteSwap32Const(uint32_t i)
{
return (i & UINT32_C(0xFF000000)) >> 24 |
(i & UINT32_C(0x00FF0000)) >> 8 |
(i & UINT32_C(0x0000FF00)) << 8 |
(i & UINT32_C(0x000000FF)) << 24;
}
static OF_INLINE uint64_t OF_CONST_FUNC
OFByteSwap64Const(uint64_t i)
_OFByteSwap64Const(uint64_t i)
{
return (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;
}
static OF_INLINE uint16_t OF_CONST_FUNC
OFByteSwap16NonConst(uint16_t i)
_OFByteSwap16NonConst(uint16_t i)
{
#if defined(OF_HAVE_BUILTIN_BSWAP16)
return __builtin_bswap16(i);
#elif (defined(OF_AMD64) || defined(OF_X86)) && defined(__GNUC__)
__asm__ (
"xchg{b} { %h0, %b0 | %b0, %h0 }"
: "=Q" (i)
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i = (i & UINT16_C(0xFF00)) >> 8 |
(i & UINT16_C(0x00FF)) << 8;
#endif
return i;
}
static OF_INLINE uint32_t OF_CONST_FUNC
OFByteSwap32NonConst(uint32_t i)
_OFByteSwap32NonConst(uint32_t i)
{
#if defined(OF_HAVE_BUILTIN_BSWAP32)
return __builtin_bswap32(i);
#elif (defined(OF_AMD64) || defined(OF_X86)) && defined(__GNUC__)
__asm__ (
"bswap %0"
: "=q" (i)
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(i & UINT32_C(0x0000FF00)) << 8 |
(i & UINT32_C(0x000000FF)) << 24;
#endif
return i;
}
static OF_INLINE uint64_t OF_CONST_FUNC
OFByteSwap64NonConst(uint64_t i)
_OFByteSwap64NonConst(uint64_t i)
{
#if defined(OF_HAVE_BUILTIN_BSWAP64)
return __builtin_bswap64(i);
#elif defined(OF_AMD64) && defined(__GNUC__)
__asm__ (
"bswap %0"
: "=r" (i)
: "0" (i)
);
#elif defined(OF_X86) && defined(__GNUC__)
__asm__ (
"bswap {%%}eax\n\t"
"bswap {%%}edx\n\t"
"xchg{l} { %%eax, %%edx | edx, eax }"
: "=A" (i)
: "0" (i)
);
#else
i = (uint64_t)OFByteSwap32NonConst(
i = (uint64_t)_OFByteSwap32NonConst(
(uint32_t)(i & UINT32_C(0xFFFFFFFF))) << 32 |
OFByteSwap32NonConst((uint32_t)(i >> 32));
_OFByteSwap32NonConst((uint32_t)(i >> 32));
#endif
return i;
}
#ifdef __GNUC__
# define OFByteSwap16(i) \
(__builtin_constant_p(i) ? OFByteSwap16Const(i) : OFByteSwap16NonConst(i))
(__builtin_constant_p(i) ? _OFByteSwap16Const(i) : _OFByteSwap16NonConst(i))
# define OFByteSwap32(i) \
(__builtin_constant_p(i) ? OFByteSwap32Const(i) : OFByteSwap32NonConst(i))
(__builtin_constant_p(i) ? _OFByteSwap32Const(i) : _OFByteSwap32NonConst(i))
# define OFByteSwap64(i) \
(__builtin_constant_p(i) ? OFByteSwap64Const(i) : OFByteSwap64NonConst(i))
(__builtin_constant_p(i) ? _OFByteSwap64Const(i) : _OFByteSwap64NonConst(i))
#else
# define OFByteSwap16(i) OFByteSwap16Const(i)
# define OFByteSwap32(i) OFByteSwap32Const(i)
# define OFByteSwap64(i) OFByteSwap64Const(i)
# define OFByteSwap16(i) _OFByteSwap16Const(i)
# define OFByteSwap32(i) _OFByteSwap32Const(i)
# define OFByteSwap64(i) _OFByteSwap64Const(i)
#endif
static OF_INLINE uint32_t
OFFloatToRawUInt32(float f)
{
uint32_t ret;
memcpy(&ret, &f, 4);
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