94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
#ifndef ENDIANESS_H
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#define ENDIANESS_H
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#ifdef __cplusplus
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namespace Ship
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{
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enum class Endianness
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{
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Little = 0,
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Big = 1,
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#if (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)) || defined(__BIG_ENDIAN__)
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Native = Big,
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#else
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Native = Little,
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#endif
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};
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}
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#endif
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#ifdef _MSC_VER
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#include <stdlib.h>
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#define BSWAP16 _byteswap_ushort
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#define BSWAP32 _byteswap_ulong
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#define BSWAP64 _byteswap_uint64
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#define BOMSWAP16 _byteswap_ushort
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#define BOMSWAP32 _byteswap_ulong
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#define BOMSWAP64 _byteswap_uint64
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#define BOMSWAP16_CONST(x) \
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((((x) >> 8) & 0x00FF) | (((x) << 8) & 0xFF00))
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#define BOMSWAP32_CONST(x) \
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((((x) >> 24) & 0x000000FF) | (((x) >> 8) & 0x0000FF00) | \
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(((x) << 8) & 0x00FF0000) | (((x) << 24) & 0xFF000000))
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#define BOMSWAP64_CONST(x) \
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((((x) >> 56) & 0x00000000000000FF) | (((x) >> 40) & 0x000000000000FF00) | \
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(((x) >> 24) & 0x0000000000FF0000) | (((x) >> 8) & 0x00000000FF000000) | \
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(((x) << 8) & 0x000000FF00000000) | (((x) << 24) & 0x0000FF0000000000) | \
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(((x) << 40) & 0x00FF000000000000) | (((x) << 56) & 0xFF00000000000000))
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#else
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#define BSWAP16 __builtin_bswap16
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#define BSWAP32 __builtin_bswap32
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#define BSWAP64 __builtin_bswap64
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#define BOMSWAP16 __builtin_bswap16
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#define BOMSWAP32 __builtin_bswap32
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#define BOMSWAP64 __builtin_bswap64
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#define BOMSWAP16_CONST __builtin_bswap16
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#define BOMSWAP32_CONST __builtin_bswap32
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#define BOMSWAP64_CONST __builtin_bswap64
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#endif
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#if (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)) || defined(__BIG_ENDIAN__)
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#ifndef IS_BIGENDIAN
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#define IS_BIGENDIAN
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#endif
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#endif
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#ifdef IS_BIGENDIAN
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#define BE16SWAP(x) (x)
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#define BE32SWAP(x) (x)
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#define BE64SWAP(x) (x)
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#define LE16SWAP(x) BOMSWAP16(x)
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#define LE32SWAP(x) BOMSWAP32(x)
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#define LE64SWAP(x) BOMSWAP64(x)
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#define BE16SWAP_CONST(x) (x)
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#define BE32SWAP_CONST(x) (x)
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#define BE64SWAP_CONST(x) (x)
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#define LE16SWAP_CONST(x) BOMSWAP16_CONST(x)
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#define LE32SWAP_CONST(x) BOMSWAP32_CONST(x)
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#define LE64SWAP_CONST(x) BOMSWAP64_CONST(x)
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#else
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#define BE16SWAP(x) BOMSWAP16(x)
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#define BE32SWAP(x) BOMSWAP32(x)
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#define BE64SWAP(x) BOMSWAP64(x)
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#define LE16SWAP(x) (x)
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#define LE32SWAP(x) (x)
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#define LE64SWAP(x) (x)
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#define BE16SWAP_CONST(x) BOMSWAP16_CONST(x)
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#define BE32SWAP_CONST(x) BOMSWAP32_CONST(x)
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#define BE64SWAP_CONST(x) BOMSWAP64_CONST(x)
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#define LE16SWAP_CONST(x) (x)
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#define LE32SWAP_CONST(x) (x)
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#define LE64SWAP_CONST(x) (x)
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#endif
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#endif
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