diff options
| -rw-r--r-- | utils/bswap.h | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/utils/bswap.h b/utils/bswap.h index 7ca267bdd..6e7f7d336 100644 --- a/utils/bswap.h +++ b/utils/bswap.h @@ -32,23 +32,19 @@ #ifdef __linux__ #include <byteswap.h> #else -#include <string.h> -static __inline__ uint32_t bswap_32(uint32_t x) - { - uint32_t res; - swab((void*)&x, (void*)&res, sizeof(uint32_t)); - - return res; - } - -static __inline__ uint16_t bswap_16(uint16_t x) - { - uint16_t res; - - swab((void*)&x, (void*)&res, sizeof(uint16_t)); - return res; - } +static inline uint32_t bswap_32(uint32_t x) +{ + return ((((x) & 0xff00) >> 8) | \ + (((x) & 0x00ff) << 8)); +} +static inline uint16_t bswap_16(uint16_t x) +{ + return ((((x) & 0xff000000) >> 24) | \ + (((x) & 0x00ff0000) >> 8) | \ + (((x) & 0x0000ff00) << 8) | \ + (((x) & 0x000000ff) << 24)); +} #endif #endif |