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libavutil/ppc/util_altivec.h : fix load_with_perm_vec() add marcos vcswapi2s() vcswapc() VEC_SPLAT16() VEC_SLD16() for POWER LE

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Rong Yan 2014-11-27 05:45:58 +00:00 committed by Michael Niedermayer
parent 4ae1d6021b
commit 22e557917d
1 changed files with 31 additions and 7 deletions
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38
libavutil/ppc/util_altivec.h
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@ -46,9 +46,21 @@
#define WORD_s1 0x14,0x15,0x16,0x17
#define WORD_s2 0x18,0x19,0x1a,0x1b
#define WORD_s3 0x1c,0x1d,0x1e,0x1f
#define vcprm(a,b,c,d) (const vector unsigned char){WORD_ ## a, WORD_ ## b, WORD_ ## c, WORD_ ## d}
#define SWP_W2S0 0x02,0x03,0x00,0x01
#define SWP_W2S1 0x06,0x07,0x04,0x05
#define SWP_W2S2 0x0a,0x0b,0x08,0x09
#define SWP_W2S3 0x0e,0x0f,0x0c,0x0d
#define SWP_W2Ss0 0x12,0x13,0x10,0x11
#define SWP_W2Ss1 0x16,0x17,0x14,0x15
#define SWP_W2Ss2 0x1a,0x1b,0x18,0x19
#define SWP_W2Ss3 0x1e,0x1f,0x1c,0x1d
#define vcswapi2s(a,b,c,d) (const vector unsigned char){SWP_W2S ## a, SWP_W2S ## b, SWP_W2S ## c, SWP_W2S ## d}
#define vcswapc() \
(const vector unsigned char){0x0f,0x0e,0x0d,0x0c,0x0b,0x0a,0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x02,0x01,0x00}
// Transpose 8x8 matrix of 16-bit elements (in-place)
#define TRANSPOSE8(a,b,c,d,e,f,g,h) \
@ -103,8 +115,15 @@ static inline vector unsigned char unaligned_load(int offset, const uint8_t *src
register vector unsigned char mask = vec_lvsl(offset, src);
return vec_perm(first, second, mask);
}
static inline vec_u8 load_with_perm_vec(int offset, const uint8_t *src, vec_u8 perm_vec)
{
vec_u8 a = vec_ld(offset, src);
vec_u8 b = vec_ld(offset+15, src);
return vec_perm(a, b, perm_vec);
}
#else
#define unaligned_load(a,b) VEC_LD(a,b)
#define load_with_perm_vec(a,b,c) VEC_LD(a,b)
#endif
@ -112,12 +131,6 @@ static inline vector unsigned char unaligned_load(int offset, const uint8_t *src
* loads vector known misalignment
* @param perm_vec the align permute vector to combine the two loads from lvsl
*/
static inline vec_u8 load_with_perm_vec(int offset, const uint8_t *src, vec_u8 perm_vec)
{
vec_u8 a = vec_ld(offset, src);
vec_u8 b = vec_ld(offset+15, src);
return vec_perm(a, b, perm_vec);
}
#define vec_unaligned_load(b) VEC_LD(0, b)
@ -135,6 +148,17 @@ static inline vec_u8 load_with_perm_vec(int offset, const uint8_t *src, vec_u8 p
#define VEC_ST(a,b,c) vec_vsx_st(a,b,c)
#endif
#if HAVE_BIGENDIAN
#define VEC_SPLAT16(a,b) vec_splat((vec_s16)a, b)
#else
#define VEC_SPLAT16(a,b) vec_splat((vec_s16)(vec_perm(a, a, vcswapi2s(0,1,2,3))), b)
#endif
#if HAVE_BIGENDIAN
#define VEC_SLD16(a,b,c) vec_sld(a, b, c)
#else
#define VEC_SLD16(a,b,c) vec_sld(b, a, c)
#endif
#endif /* HAVE_ALTIVEC */