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fixing alignment for alignment picky cpus 

Originally committed as revision 535 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-05-19 01:49:53 +00:00
parent d4327e368f
commit 10fc842423
1 changed files with 11 additions and 1 deletions
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12
libavcodec/dsputil.c
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@ -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) \