diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2012-06-22 16:12:54 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-06-22 17:23:09 +0200 |
| commit | fba18ef8ccdbe62d1fa08bebcacbf2158c60f4c6 (patch) | |
| tree | 3003558c284d4cf860da447f4c834bbf384ccead | |
| parent | 15bde060844b7d32af80b352834ba5f33cab55d1 (diff) | |
| download | ffmpeg-fba18ef8ccdbe62d1fa08bebcacbf2158c60f4c6.tar.gz | |
x86/dsputil_mmx: support 4 sample edges
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/x86/dsputil_mmx.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/libavcodec/x86/dsputil_mmx.c b/libavcodec/x86/dsputil_mmx.c index a4e3239fb8..31277d547b 100644 --- a/libavcodec/x86/dsputil_mmx.c +++ b/libavcodec/x86/dsputil_mmx.c @@ -807,7 +807,7 @@ static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height, : "+r"(ptr) : "r"((x86_reg)wrap), "r"((x86_reg)width), "r"(ptr + wrap * height) ); - } else { + } else if(w==16){ __asm__ volatile ( "1: \n\t" "movd (%0), %%mm0 \n\t" @@ -828,6 +828,25 @@ static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height, : "+r"(ptr) : "r"((x86_reg)wrap), "r"((x86_reg)width), "r"(ptr + wrap * height) ); + } else { + av_assert1(w == 4); + __asm__ volatile ( + "1: \n\t" + "movd (%0), %%mm0 \n\t" + "punpcklbw %%mm0, %%mm0 \n\t" + "punpcklwd %%mm0, %%mm0 \n\t" + "movd %%mm0, -4(%0) \n\t" + "movd -4(%0, %2), %%mm1 \n\t" + "punpcklbw %%mm1, %%mm1 \n\t" + "punpckhwd %%mm1, %%mm1 \n\t" + "punpckhdq %%mm1, %%mm1 \n\t" + "movd %%mm1, (%0, %2) \n\t" + "add %1, %0 \n\t" + "cmp %3, %0 \n\t" + "jb 1b \n\t" + : "+r"(ptr) + : "r"((x86_reg)wrap), "r"((x86_reg)width), "r"(ptr + wrap * height) + ); } /* top and bottom (and hopefully also the corners) */ |