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MacOSX: use native OSX byte swapping routines used in hash functions to improve speed.

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This commit is contained in:
Mounir IDRASSI 2016-01-11 01:03:02 +01:00
parent e40774f546
commit e858d93a8e
1 changed files with 10 additions and 3 deletions
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9
src/Crypto/misc.h
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@ -59,8 +59,15 @@
#define CRYPTOPP_BYTESWAP_AVAILABLE
#include <byteswap.h>
#elif defined(_MSC_VER) && _MSC_VER >= 1300
#define CRYPTOPP_BYTESWAP_AVAILABLE
#define bswap_32(x) _byteswap_ulong(x)
#define bswap_64(x) _byteswap_uint64(x)
#elif defined(__APPLE__)
#include <libkern/OSByteOrder.h>
#define CRYPTOPP_BYTESWAP_AVAILABLE
#define bswap_16 OSSwapInt16
#define bswap_32 OSSwapInt32
#define bswap_64 OSSwapInt64
#else
#ifdef CRYPTOPP_FAST_ROTATE(32)
#define bswap_32(x) (rotr32((x), 8U) & 0xff00ff00) | (rotl32((x), 8U) & 0x00ff00ff)
@ -68,7 +75,7 @@
#define bswap_32(x) (rotl32((((x) & 0xFF00FF00) >> 8) | (((x) & 0x00FF00FF) << 8), 16U))
#endif
#ifndef TC_NO_COMPILER_INT64
#define bswap_64(x) rotl64(((((((value & LL(0xFF00FF00FF00FF00)) >> 8) | ((value & LL(0x00FF00FF00FF00FF)) << 8)) & LL(0xFFFF0000FFFF0000)) >> 16) | (((((value & LL(0xFF00FF00FF00FF00)) >> 8) | ((value & LL(0x00FF00FF00FF00FF)) << 8)) & LL(0x0000FFFF0000FFFF)) << 16)), 32U)
#define bswap_64(x) rotl64(((((((x & LL(0xFF00FF00FF00FF00)) >> 8) | ((x & LL(0x00FF00FF00FF00FF)) << 8)) & LL(0xFFFF0000FFFF0000)) >> 16) | (((((x & LL(0xFF00FF00FF00FF00)) >> 8) | ((x & LL(0x00FF00FF00FF00FF)) << 8)) & LL(0x0000FFFF0000FFFF)) << 16)), 32U)
#endif
#endif