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avcodec/ppc/vp8dsp_altivec.c: POWER LE support put_vp8_epel_h_altivec_core() put_vp8_epel_v_altivec_core() put_vp8_pixels16_altivec() add marcos GET_PIXHL() GET_OUTER() LOAD_HL()

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
pull/101/head
Rong Yan 10 years ago committed by Michael Niedermayer
parent 36cd2bcbc3
commit d23e883248
1 changed files with 49 additions and 37 deletions
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  1. 86
      libavcodec/ppc/vp8dsp_altivec.c

86
libavcodec/ppc/vp8dsp_altivec.c
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@ -59,17 +59,30 @@ static const vec_s8 h_subpel_filters_outer[3] =
vec_s8 filter_outerh = h_subpel_filters_outer[(i)>>1]; \
vec_s8 filter_outerl = vec_sld(filter_outerh, filter_outerh, 2)
#if HAVE_BIGENDIAN
#define GET_PIXHL(offset) \
a = vec_ld((offset)-is6tap-1, src); \
b = vec_ld((offset)-is6tap-1+15, src); \
pixh = vec_perm(a, b, permh##offset); \
pixl = vec_perm(a, b, perml##offset)
#define GET_OUTER(offset) outer = vec_perm(a, b, perm_6tap##offset)
#else
#define GET_PIXHL(offset) \
a = vec_vsx_ld((offset)-is6tap-1, src); \
pixh = vec_perm(a, a, perm_inner); \
pixl = vec_perm(a, a, vec_add(perm_inner, vec_splat_u8(4)))
#define GET_OUTER(offset) outer = vec_perm(a, a, perm_outer)
#endif
#define FILTER_H(dstv, off) \
a = vec_ld((off)-is6tap-1, src); \
b = vec_ld((off)-is6tap-1+15, src); \
\
pixh = vec_perm(a, b, permh##off); \
pixl = vec_perm(a, b, perml##off); \
GET_PIXHL(off); \
filth = vec_msum(filter_inner, pixh, c64); \
filtl = vec_msum(filter_inner, pixl, c64); \
\
if (is6tap) { \
outer = vec_perm(a, b, perm_6tap##off); \
GET_OUTER(off); \
filth = vec_msum(filter_outerh, outer, filth); \
filtl = vec_msum(filter_outerl, outer, filtl); \
} \
@ -84,9 +97,12 @@ void put_vp8_epel_h_altivec_core(uint8_t *dst, ptrdiff_t dst_stride,
int h, int mx, int w, int is6tap)
{
LOAD_H_SUBPEL_FILTER(mx-1);
vec_u8 align_vec0, align_vec8, permh0, permh8, filt;
#if HAVE_BIGENDIAN
vec_u8 align_vec0, align_vec8, permh0, permh8;
vec_u8 perm_6tap0, perm_6tap8, perml0, perml8;
vec_u8 a, b, pixh, pixl, outer;
vec_u8 b;
#endif
vec_u8 filt, a, pixh, pixl, outer;
vec_s16 f16h, f16l;
vec_s32 filth, filtl;
@ -97,6 +113,7 @@ void put_vp8_epel_h_altivec_core(uint8_t *dst, ptrdiff_t dst_stride,
vec_s32 c64 = vec_sl(vec_splat_s32(1), vec_splat_u32(6));
vec_u16 c7 = vec_splat_u16(7);
#if HAVE_BIGENDIAN
align_vec0 = vec_lvsl( -is6tap-1, src);
align_vec8 = vec_lvsl(8-is6tap-1, src);
@ -107,6 +124,7 @@ void put_vp8_epel_h_altivec_core(uint8_t *dst, ptrdiff_t dst_stride,
perml8 = vec_perm(align_vec8, align_vec8, perm_inner);
perm_6tap0 = vec_perm(align_vec0, align_vec0, perm_outer);
perm_6tap8 = vec_perm(align_vec8, align_vec8, perm_outer);
#endif
while (h --> 0) {
FILTER_H(f16h, 0);
@ -164,6 +182,12 @@ static const vec_u8 v_subpel_filters[7] =
dstv = vec_adds(dstv, c64); \
dstv = vec_sra(dstv, c7)
#if HAVE_BIGENDIAN
#define LOAD_HL(off, s, perm) load_with_perm_vec(off, s, perm)
#else
#define LOAD_HL(off, s, perm) vec_mergeh(vec_vsx_ld(off,s), vec_vsx_ld(off+8,s))
#endif
static av_always_inline
void put_vp8_epel_v_altivec_core(uint8_t *dst, ptrdiff_t dst_stride,
uint8_t *src, ptrdiff_t src_stride,
@ -175,6 +199,7 @@ void put_vp8_epel_v_altivec_core(uint8_t *dst, ptrdiff_t dst_stride,
vec_s16 c64 = vec_sl(vec_splat_s16(1), vec_splat_u16(6));
vec_u16 c7 = vec_splat_u16(7);
#if HAVE_BIGENDIAN
// we want pixels 0-7 to be in the even positions and 8-15 in the odd,
// so combine this permute with the alignment permute vector
align_vech = vec_lvsl(0, src);
@ -183,22 +208,23 @@ void put_vp8_epel_v_altivec_core(uint8_t *dst, ptrdiff_t dst_stride,
perm_vec = vec_mergeh(align_vech, align_vecl);
else
perm_vec = vec_mergeh(align_vech, align_vech);
#endif
if (is6tap)
s0 = load_with_perm_vec(-2*src_stride, src, perm_vec);
s1 = load_with_perm_vec(-1*src_stride, src, perm_vec);
s2 = load_with_perm_vec( 0*src_stride, src, perm_vec);
s3 = load_with_perm_vec( 1*src_stride, src, perm_vec);
s0 = LOAD_HL(-2*src_stride, src, perm_vec);
s1 = LOAD_HL(-1*src_stride, src, perm_vec);
s2 = LOAD_HL( 0*src_stride, src, perm_vec);
s3 = LOAD_HL( 1*src_stride, src, perm_vec);
if (is6tap)
s4 = load_with_perm_vec( 2*src_stride, src, perm_vec);
s4 = LOAD_HL( 2*src_stride, src, perm_vec);
src += (2+is6tap)*src_stride;
while (h --> 0) {
if (is6tap)
s5 = load_with_perm_vec(0, src, perm_vec);
s5 = LOAD_HL(0, src, perm_vec);
else
s4 = load_with_perm_vec(0, src, perm_vec);
s4 = LOAD_HL(0, src, perm_vec);
FILTER_V(f16h, vec_mule);
@ -272,39 +298,25 @@ EPEL_HV(4, 4,4)
static void put_vp8_pixels16_altivec(uint8_t *dst, ptrdiff_t dstride, uint8_t *src, ptrdiff_t sstride, int h, int mx, int my)
{
register vector unsigned char pixelsv1, pixelsv2;
register vector unsigned char pixelsv1B, pixelsv2B;
register vector unsigned char pixelsv1C, pixelsv2C;
register vector unsigned char pixelsv1D, pixelsv2D;
register vector unsigned char perm = vec_lvsl(0, src);
register vector unsigned char perm;
int i;
register ptrdiff_t dstride2 = dstride << 1, sstride2 = sstride << 1;
register ptrdiff_t dstride3 = dstride2 + dstride, sstride3 = sstride + sstride2;
register ptrdiff_t dstride4 = dstride << 2, sstride4 = sstride << 2;
#if HAVE_BIGENDIAN
perm = vec_lvsl(0, src);
#endif
// hand-unrolling the loop by 4 gains about 15%
// mininum execution time goes from 74 to 60 cycles
// it's faster than -funroll-loops, but using
// -funroll-loops w/ this is bad - 74 cycles again.
// all this is on a 7450, tuning for the 7450
for (i = 0; i < h; i += 4) {
pixelsv1 = vec_ld( 0, src);
pixelsv2 = vec_ld(15, src);
pixelsv1B = vec_ld(sstride, src);
pixelsv2B = vec_ld(15 + sstride, src);
pixelsv1C = vec_ld(sstride2, src);
pixelsv2C = vec_ld(15 + sstride2, src);
pixelsv1D = vec_ld(sstride3, src);
pixelsv2D = vec_ld(15 + sstride3, src);
vec_st(vec_perm(pixelsv1, pixelsv2, perm),
0, (unsigned char*)dst);
vec_st(vec_perm(pixelsv1B, pixelsv2B, perm),
dstride, (unsigned char*)dst);
vec_st(vec_perm(pixelsv1C, pixelsv2C, perm),
dstride2, (unsigned char*)dst);
vec_st(vec_perm(pixelsv1D, pixelsv2D, perm),
dstride3, (unsigned char*)dst);
vec_st(load_with_perm_vec(0, src, perm), 0, dst);
vec_st(load_with_perm_vec(sstride, src, perm), dstride, dst);
vec_st(load_with_perm_vec(sstride2, src, perm), dstride2, dst);
vec_st(load_with_perm_vec(sstride3, src, perm), dstride3, dst);
src += sstride4;
dst += dstride4;
}

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