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| author | Michael Niedermayer <michaelni@gmx.at> | 2002-05-19 01:49:53 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2002-05-19 01:49:53 +0000 |
| commit | 10fc8424234aa214a2dc40eab1c1beaefb0f3066 (patch) | |
| tree | a26ded851cb844a5b265df3243052a041ef293ad | |
| parent | d4327e368f9db5301bcc14542ea4b5236a200ed6 (diff) | |
| download | ffmpeg-10fc8424234aa214a2dc40eab1c1beaefb0f3066.tar.gz | |
fixing alignment for alignment picky cpus
Originally committed as revision 535 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/dsputil.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c index 7e389f00f0..51aaa28975 100644 --- a/libavcodec/dsputil.c +++ b/libavcodec/dsputil.c @@ -249,11 +249,21 @@ void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size) } } -//FIXME someone with a alignemtent picky cpu should change these +#ifdef __GNUC__ + +struct unaligned_64 { uint64_t l; } __attribute__((packed)); +struct unaligned_32 { uint32_t l; } __attribute__((packed)); + +#define LD32(a) (((const struct unaligned_32 *) (a))->l) +#define LD64(a) (((const struct unaligned_64 *) (a))->l) + +#else /* __GNUC__ */ #define LD32(a) (*((uint32_t*)(a))) #define LD64(a) (*((uint64_t*)(a))) +#endif /* !__GNUC__ */ + #if 0 #define PIXOP2(OPNAME, OP) \ |