mirror of https://github.com/nu774/fdkaac.git
86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/*
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* Copyright (C) 2013 nu774
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* For conditions of distribution and use, see copyright notice in COPYING
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*/
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#ifndef M4AF_ENDIAN_H
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#define M4AF_ENDIAN_H
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#if HAVE_CONFIG_H
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# include "config.h"
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#endif
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#if HAVE_STDINT_H
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# include <stdint.h>
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#endif
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#if HAVE_ENDIAN_H
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# include <endian.h>
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# define m4af_htob16(x) htobe16(x)
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# define m4af_htob32(x) htobe32(x)
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# define m4af_htob64(x) htobe64(x)
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# define m4af_btoh16(x) be16toh(x)
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# define m4af_btoh32(x) be32toh(x)
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# define m4af_btoh64(x) be64toh(x)
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# define m4af_htol16(x) htole16(x)
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# define m4af_htol32(x) htole32(x)
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# define m4af_htol64(x) htole64(x)
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# define m4af_ltoh16(x) le16toh(x)
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# define m4af_ltoh32(x) le32toh(x)
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# define m4af_ltoh64(x) le64toh(x)
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#elif WORDS_BIGENDIAN
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# define m4af_htob16(x) (x)
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# define m4af_htob32(x) (x)
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# define m4af_htob64(x) (x)
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# define m4af_btoh16(x) (x)
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# define m4af_btoh32(x) (x)
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# define m4af_btoh64(x) (x)
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# define m4af_ltoh16(x) m4af_swap16(x)
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# define m4af_ltoh32(x) m4af_swap32(x)
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# define m4af_ltoh64(x) m4af_swap64(x)
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# define m4af_htol16(x) m4af_swap16(x)
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# define m4af_htol32(x) m4af_swap32(x)
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# define m4af_htol64(x) m4af_swap64(x)
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#else
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# define m4af_htob16(x) m4af_swap16(x)
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# define m4af_htob32(x) m4af_swap32(x)
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# define m4af_htob64(x) m4af_swap64(x)
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# define m4af_btoh16(x) m4af_swap16(x)
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# define m4af_btoh32(x) m4af_swap32(x)
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# define m4af_btoh64(x) m4af_swap64(x)
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# define m4af_ltoh16(x) (x)
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# define m4af_ltoh32(x) (x)
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# define m4af_ltoh64(x) (x)
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# define m4af_htol16(x) (x)
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# define m4af_htol32(x) (x)
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# define m4af_htol64(x) (x)
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#endif
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#if _MSC_VER >= 1400
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# include <stdlib.h>
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# define m4af_swap16(x) _byteswap_ushort(x)
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# define m4af_swap32(x) _byteswap_ulong(x)
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# define m4af_swap64(x) _byteswap_uint64(x)
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#elif HAVE_BYTESWAP_H
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# include <byteswap.h>
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# define m4af_swap16(x) bswap_16(x)
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# define m4af_swap32(x) bswap_32(x)
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# define m4af_swap64(x) bswap_64(x)
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#else
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static inline uint16_t m4af_swap16(uint16_t x)
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{
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return (x >> 8) | (x << 8);
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}
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static inline uint32_t m4af_swap32(uint32_t x)
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{
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return (m4af_htob16(x) << 16) | m4af_htob16(x >> 16);
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}
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static inline uint64_t m4af_swap64(uint64_t x)
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{
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return ((uint64_t)m4af_htob32(x) << 32) | m4af_htob32(x >> 32);
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}
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#endif
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#endif /* M4AF_ENDIAN_H */
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