diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2002-04-21 22:41:49 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2002-04-21 22:41:49 +0000 |
| commit | ba8d0be99da6f2da5e3ac3206f6c0689228550aa (patch) | |
| tree | 0cb517694ef3e8f70dbfcdc3323ca84f1faf9267 /libavcodec/i386/motion_est_mmx.c | |
| parent | 8b4c7dbc5507425b0c342948dabf01d714af7068 (diff) | |
rounding bugfix
Originally committed as revision 409 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/i386/motion_est_mmx.c')
| -rw-r--r-- | libavcodec/i386/motion_est_mmx.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libavcodec/i386/motion_est_mmx.c b/libavcodec/i386/motion_est_mmx.c index e704c42194..ee29110225 100644 --- a/libavcodec/i386/motion_est_mmx.c +++ b/libavcodec/i386/motion_est_mmx.c @@ -19,6 +19,7 @@ * mostly by Michael Niedermayer <michaelni@gmx.at> */ #include "../dsputil.h" +#include "../mangle.h" static const __attribute__ ((aligned(8))) UINT64 round_tab[3]={ 0x0000000000000000, @@ -26,6 +27,8 @@ static const __attribute__ ((aligned(8))) UINT64 round_tab[3]={ 0x0002000200020002, }; +static __attribute__ ((aligned(8))) uint64_t bone= 0x0101010101010101LL; + static inline void sad8_mmx(UINT8 *blk1, UINT8 *blk2, int stride, int h) { int len= -(stride<<h); @@ -115,6 +118,7 @@ static inline void sad8_4_mmx2(UINT8 *blk1, UINT8 *blk2, int stride, int h) int len= -(stride<<h); asm volatile( ".balign 16 \n\t" + "movq "MANGLE(bone)", %%mm5 \n\t" "1: \n\t" "movq (%1, %%eax), %%mm0 \n\t" "movq (%2, %%eax), %%mm2 \n\t" @@ -122,6 +126,7 @@ static inline void sad8_4_mmx2(UINT8 *blk1, UINT8 *blk2, int stride, int h) "movq 1(%2, %%eax), %%mm3 \n\t" "pavgb %%mm2, %%mm0 \n\t" "pavgb %%mm1, %%mm3 \n\t" + "psubusb %%mm5, %%mm3 \n\t" "pavgb %%mm3, %%mm0 \n\t" "movq (%3, %%eax), %%mm2 \n\t" "psadbw %%mm2, %%mm0 \n\t" @@ -132,6 +137,7 @@ static inline void sad8_4_mmx2(UINT8 *blk1, UINT8 *blk2, int stride, int h) "movq 1(%2, %%eax), %%mm4 \n\t" "pavgb %%mm3, %%mm1 \n\t" "pavgb %%mm4, %%mm2 \n\t" + "psubusb %%mm5, %%mm2 \n\t" "pavgb %%mm1, %%mm2 \n\t" "movq (%3, %%eax), %%mm1 \n\t" "psadbw %%mm1, %%mm2 \n\t" |