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| author | Robin KAY <komadori@users.sourceforge.net> | 2004-05-09 22:05:34 +0000 |
|---|---|---|
| committer | Robin KAY <komadori@users.sourceforge.net> | 2004-05-09 22:05:34 +0000 |
| commit | aad4cdcdad0adc9e6534e7ae3b65bada2dd71644 (patch) | |
| tree | db021a11498b22e6e774aa53ade1c00738bb2625 | |
| parent | e6af80e08aa6e6d8b7939712654cae332051316f (diff) | |
| download | xine-lib-aad4cdcdad0adc9e6534e7ae3b65bada2dd71644.tar.gz xine-lib-aad4cdcdad0adc9e6534e7ae3b65bada2dd71644.tar.bz2 | |
Add portable version of the bswap_64 macro.
CVS patchset: 6508
CVS date: 2004/05/09 22:05:34
| -rw-r--r-- | src/xine-engine/bswap.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/xine-engine/bswap.h b/src/xine-engine/bswap.h index 7d73cff62..4b459dc56 100644 --- a/src/xine-engine/bswap.h +++ b/src/xine-engine/bswap.h @@ -55,12 +55,12 @@ inline static unsigned long long int ByteSwap64(unsigned long long int x) #define bswap_16(x) (((x) & 0x00ff) << 8 | ((x) & 0xff00) >> 8) - -/* code from bits/byteswap.h (C) 1997, 1998 Free Software Foundation, Inc. */ #define bswap_32(x) \ ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) +#ifdef __GNUC__ +/* code from bits/byteswap.h (C) 1997, 1998 Free Software Foundation, Inc. */ #define bswap_64(x) \ (__extension__ \ ({ union { __extension__ unsigned long long int __ll; \ @@ -69,6 +69,18 @@ inline static unsigned long long int ByteSwap64(unsigned long long int x) __r.__l[0] = bswap_32 (__w.__l[1]); \ __r.__l[1] = bswap_32 (__w.__l[0]); \ __r.__ll; })) +#else +#define bswap_64(x) \ + ((((x) & 0xff00000000000000LL) >> 56) | \ + (((x) & 0x00ff000000000000LL) >> 40) | \ + (((x) & 0x0000ff0000000000LL) >> 24) | \ + (((x) & 0x000000ff00000000LL) >> 8) | \ + (((x) & 0x00000000ff000000LL) << 8) | \ + (((x) & 0x0000000000ff0000LL) << 24) | \ + (((x) & 0x000000000000ff00LL) << 40) | \ + (((x) & 0x00000000000000ffLL) << 56)) +#endif /* !__GNUC__ */ + #endif /* !ARCH_X86 */ #endif /* !HAVE_BYTESWAP_H */ @@ -155,7 +167,6 @@ inline static unsigned long long int ByteSwap64(unsigned long long int x) #define AME_64(x) ALE_64(x) #endif - #define BE_FOURCC( ch0, ch1, ch2, ch3 ) \ ( (uint32_t)(unsigned char)(ch3) | \ ( (uint32_t)(unsigned char)(ch2) << 8 ) | \ @@ -168,5 +179,4 @@ inline static unsigned long long int ByteSwap64(unsigned long long int x) ( (uint32_t)(unsigned char)(ch2) << 16 ) | \ ( (uint32_t)(unsigned char)(ch3) << 24 ) ) - #endif |