diff options
| author | Luca Barbato <lu_zero@gentoo.org> | 2006-04-25 17:29:31 +0000 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2006-04-25 17:29:31 +0000 |
| commit | f420826c352c2ee84b75a82fefb07540b8cb6d1d (patch) | |
| tree | e04dc173e9b292730125367445eea8efff8245fb /libavcodec | |
| parent | ddbddce547a4183a66d9e48ea095f49ec1309dbd (diff) | |
40% faster decode
Originally committed as revision 5315 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/ppc/dsputil_snow_altivec.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/libavcodec/ppc/dsputil_snow_altivec.c b/libavcodec/ppc/dsputil_snow_altivec.c index 02ef678d36..b2ae8734cd 100644 --- a/libavcodec/ppc/dsputil_snow_altivec.c +++ b/libavcodec/ppc/dsputil_snow_altivec.c @@ -423,8 +423,8 @@ static void inner_add_yblock_bw_8_obmc_16_altivec(uint8_t *obmc, { int y, x; DWTELEM * dst; - vector bool int mask; - vector signed int vs; +// vector bool int mask; +// vector signed int vs; vector unsigned short h1, h2, l1, l2; vector unsigned char ih, il, tmp1, tmp2, align; vector unsigned char b0,b1,b2,b3; @@ -546,6 +546,18 @@ static void inner_add_yblock_bw_8_obmc_16_altivec(uint8_t *obmc, #endif + +#if 1 + for(x=0; x<b_w; x++) + if(add){ + vbuf[x] += dst[x + src_x]; + vbuf[x] = (vbuf[x] + (1<<(FRAC_BITS-1))) >> FRAC_BITS; + if(vbuf[x]&(~255)) vbuf[x]= ~(vbuf[x]>>31); + dst8[x + y*src_stride] = vbuf[x]; + }else{ + dst[x + src_x] -= vbuf[x]; + } +#else if(add) { for(x=0; x<b_w/4; x++) @@ -579,7 +591,7 @@ static void inner_add_yblock_bw_8_obmc_16_altivec(uint8_t *obmc, else for(x=0; x<b_w/4; x++) d[x] = vec_sub(d[x], v[x]); - +#endif } @@ -792,11 +804,12 @@ void ff_snow_inner_add_yblock_altivec(uint8_t *obmc, const int obmc_stride, slice_buffer * sb, int add, uint8_t * dst8) { +//FIXME implement src_x&15 cases later if (b_w == 16) inner_add_yblock_bw_16_obmc_32_altivec(obmc, obmc_stride, block, b_w, b_h, src_x, src_y, src_stride, sb, add, dst8); - else if (b_w == 8 && ! src_x&15 ) + else if (b_w == 8) inner_add_yblock_bw_8_obmc_16_altivec(obmc, obmc_stride, block, b_w, b_h, src_x, src_y, src_stride, sb, add, dst8); |