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libavutil/ppc/util_altivec.h : fix unaligned_load() vec_unaligned_load() add macros VEC_LD() VEC_MERGEH() VEC_MERGEL() VEC_ST() for POWER LE

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Rong Yan 2014-11-07 08:57:49 +00:00 committed by Michael Niedermayer
parent c11f731768
commit 6a6c16cbcc
1 changed files with 29 additions and 2 deletions
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31
libavutil/ppc/util_altivec.h
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@ -85,8 +85,17 @@ do { \
} while (0)
#if HAVE_BIGENDIAN
#define VEC_LD(offset,b) \
vec_perm(vec_ld(offset, b), vec_ld(offset+15, b), vec_lvsl(offset, b))
#else
#define VEC_LD(offset,b) \
vec_vsx_ld(offset, b)
#endif
/** @brief loads unaligned vector @a *src with offset @a offset
and returns it */
#if HAVE_BIGENDIAN
static inline vector unsigned char unaligned_load(int offset, uint8_t *src)
{
register vector unsigned char first = vec_ld(offset, src);
@ -94,6 +103,10 @@ static inline vector unsigned char unaligned_load(int offset, uint8_t *src)
register vector unsigned char mask = vec_lvsl(offset, src);
return vec_perm(first, second, mask);
}
#else
#define unaligned_load(a,b) VEC_LD(a,b)
#endif
/**
* loads vector known misalignment
@ -106,8 +119,22 @@ static inline vec_u8 load_with_perm_vec(int offset, uint8_t *src, vec_u8 perm_ve
return vec_perm(a, b, perm_vec);
}
#define vec_unaligned_load(b) \
vec_perm(vec_ld(0, b), vec_ld(15, b), vec_lvsl(0, b));
#define vec_unaligned_load(b) VEC_LD(0, b)
#if HAVE_BIGENDIAN
#define VEC_MERGEH(a, b) vec_mergeh(a, b)
#define VEC_MERGEL(a, b) vec_mergel(a, b)
#else
#define VEC_MERGEH(a, b) vec_mergeh(b, a)
#define VEC_MERGEL(a, b) vec_mergel(b, a)
#endif
#if HAVE_BIGENDIAN
#define VEC_ST(a,b,c) vec_st(a,b,c)
#else
#define VEC_ST(a,b,c) vec_vsx_st(a,b,c)
#endif
#endif /* HAVE_ALTIVEC */