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Originally committed as revision 6880 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-11-03 09:59:15 +00:00
parent 4a6cc06123
commit 5a1553dee3
1 changed files with 6 additions and 7 deletions
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13
libavcodec/i386/h264dsp_mmx.c
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@ -348,16 +348,15 @@ static void ff_h264_idct8_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride)
"pavgb %%mm2 , %%mm4 \n\t" /* (q0 - p0 + 256)>>1*/\
"pavgb %%mm5 , %%mm3 \n\t"\
"paddb %%mm4 , %%mm3 \n\t" /* d+128+33*/\
"pxor %%mm6 , %%mm6 \n\t" /* 0*/\
"psubb %%mm3 , %%mm6 \n\t" /* 128-33-d*/\
"movq "MANGLE(ff_pb_A1)" , %%mm6 \n\t"\
"psubusb %%mm3 , %%mm6 \n\t"\
"psubusb "MANGLE(ff_pb_A1)" , %%mm3 \n\t"\
"psubusb "MANGLE(ff_pb_5F)" , %%mm6 \n\t"\
"pminub %%mm7 , %%mm3 \n\t"\
"pminub %%mm7 , %%mm6 \n\t"\
"paddusb %%mm3 , %%mm1 \n\t"\
"paddusb %%mm6 , %%mm2 \n\t"\
"pminub %%mm7 , %%mm3 \n\t"\
"psubusb %%mm6 , %%mm1 \n\t"\
"psubusb %%mm3 , %%mm2 \n\t"
"psubusb %%mm3 , %%mm2 \n\t"\
"paddusb %%mm3 , %%mm1 \n\t"\
"paddusb %%mm6 , %%mm2 \n\t"
// in: mm0=p1 mm1=p0 mm2=q0 mm3=q1 mm7=(tc&mask) %8=mm_bone
// out: (q1addr) = clip( (q2+((p0+q0+1)>>1))>>1, q1-tc0, q1+tc0 )