| | 1 | /* |
| | 2 | * Copyright (C) 2013 nu774 |
| | 3 | * For conditions of distribution and use, see copyright notice in COPYING |
| | 4 | */ |
| | 5 | #ifndef M4AF_ENDIAN_H |
| | 6 | #define M4AF_ENDIAN_H |
| | 7 | |
| | 8 | #if HAVE_CONFIG_H |
| | 9 | # include "config.h" |
| | 10 | #endif |
| | 11 | #if HAVE_STDINT_H |
| | 12 | # include <stdint.h> |
| | 13 | #endif |
| | 14 | |
| | 15 | #if HAVE_ENDIAN_H |
| | 16 | # include <endian.h> |
| | 17 | # define m4af_htob16(x) htobe16(x) |
| | 18 | # define m4af_htob32(x) htobe32(x) |
| | 19 | # define m4af_htob64(x) htobe64(x) |
| | 20 | # define m4af_btoh16(x) be16toh(x) |
| | 21 | # define m4af_btoh32(x) be32toh(x) |
| | 22 | # define m4af_btoh64(x) be64toh(x) |
| | 23 | # define m4af_htol16(x) htole16(x) |
| | 24 | # define m4af_htol32(x) htole32(x) |
| | 25 | # define m4af_htol64(x) htole64(x) |
| | 26 | # define m4af_ltoh16(x) le16toh(x) |
| | 27 | # define m4af_ltoh32(x) le32toh(x) |
| | 28 | # define m4af_ltoh64(x) le64toh(x) |
| | 29 | #elif WORDS_BIGENDIAN |
| | 30 | # define m4af_htob16(x) (x) |
| | 31 | # define m4af_htob32(x) (x) |
| | 32 | # define m4af_htob64(x) (x) |
| | 33 | # define m4af_btoh16(x) (x) |
| | 34 | # define m4af_btoh32(x) (x) |
| | 35 | # define m4af_btoh64(x) (x) |
| | 36 | # define m4af_ltoh16(x) m4af_swap16(x) |
| | 37 | # define m4af_ltoh32(x) m4af_swap32(x) |
| | 38 | # define m4af_ltoh64(x) m4af_swap64(x) |
| | 39 | # define m4af_htol16(x) m4af_swap16(x) |
| | 40 | # define m4af_htol32(x) m4af_swap32(x) |
| | 41 | # define m4af_htol64(x) m4af_swap64(x) |
| | 42 | #else |
| | 43 | # define m4af_htob16(x) m4af_swap16(x) |
| | 44 | # define m4af_htob32(x) m4af_swap32(x) |
| | 45 | # define m4af_htob64(x) m4af_swap64(x) |
| | 46 | # define m4af_btoh16(x) m4af_swap16(x) |
| | 47 | # define m4af_btoh32(x) m4af_swap32(x) |
| | 48 | # define m4af_btoh64(x) m4af_swap64(x) |
| | 49 | # define m4af_ltoh16(x) (x) |
| | 50 | # define m4af_ltoh32(x) (x) |
| | 51 | # define m4af_ltoh64(x) (x) |
| | 52 | # define m4af_htol16(x) (x) |
| | 53 | # define m4af_htol32(x) (x) |
| | 54 | # define m4af_htol64(x) (x) |
| | 55 | #endif |
| | 56 | |
| | 57 | #if _MSC_VER >= 1400 |
| | 58 | # include <stdlib.h> |
| | 59 | # define m4af_swap16(x) _byteswap_ushort(x) |
| | 60 | # define m4af_swap32(x) _byteswap_ulong(x) |
| | 61 | # define m4af_swap64(x) _byteswap_uint64(x) |
| | 62 | #elif HAVE_BYTESWAP_H |
| | 63 | # include <byteswap.h> |
| | 64 | # define m4af_swap16(x) bswap_16(x) |
| | 65 | # define m4af_swap32(x) bswap_32(x) |
| | 66 | # define m4af_swap64(x) bswap_64(x) |
| | 67 | #else |
| | 68 | static inline uint16_t m4af_swap16(uint16_t x) |
| | 69 | { |
| | 70 | return (x >> 8) | (x << 8); |
| | 71 | } |
| | 72 | |
| | 73 | static inline uint32_t m4af_swap32(uint32_t x) |
| | 74 | { |
| | 75 | return (m4af_htob16(x) << 16) | m4af_htob16(x >> 16); |
| | 76 | } |
| | 77 | |
| | 78 | static inline uint64_t m4af_swap64(uint64_t x) |
| | 79 | { |
| | 80 | return ((uint64_t)m4af_htob32(x) << 32) | m4af_htob32(x >> 32); |
| | 81 | } |
| | 82 | #endif |
| | 83 | |
| | 84 | #endif /* M4AF_ENDIAN_H */ |
| | 85 | |
projects / fdkaac.git / blame_incremental