Chiebot-Mirror
/
FFmpeg
mirror of https://github.com/FFmpeg/FFmpeg.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

optimization

Browse Source 
Originally committed as revision 3438 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Michael Niedermayer 21 years ago
parent 437525c473
commit ed8ffdf46c
1 changed files with 31 additions and 17 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 48
      libavcodec/i386/dsputil_mmx.c

48
libavcodec/i386/dsputil_mmx.c
Unescape View File

@ -2489,23 +2489,43 @@ static void OPNAME ## h264_qpel8_h_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, i
static void OPNAME ## h264_qpel8_v_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
uint64_t temp[(8+5)*2];\
uint64_t *temp_ptr= temp;\
int h= 8+5;\
int h= 4;\
\
src -= 2*srcStride;\
/*FIXME unroll */\
\
asm volatile(\
"pxor %%mm7, %%mm7 \n\t"\
"1: \n\t"\
"movq (%0), %%mm0 \n\t"\
"movq (%0), %%mm1 \n\t"\
"movq %%mm0, %%mm1 \n\t"\
"addl %3, %0 \n\t"\
"punpcklbw %%mm7, %%mm0 \n\t"\
"punpckhbw %%mm7, %%mm1 \n\t"\
"movq %%mm0, (%1) \n\t"\
"punpckhbw %%mm7, %%mm1 \n\t"\
"movq (%0), %%mm0 \n\t"\
"movq %%mm1, 8(%1) \n\t"\
"addl $16, %1 \n\t"\
"movq %%mm0, %%mm1 \n\t"\
"addl %3, %0 \n\t"\
"punpcklbw %%mm7, %%mm0 \n\t"\
"movq %%mm0, 16(%1) \n\t"\
"punpckhbw %%mm7, %%mm1 \n\t"\
"movq (%0), %%mm0 \n\t"\
"movq %%mm1, 24(%1) \n\t"\
"movq %%mm0, %%mm1 \n\t"\
"addl %3, %0 \n\t"\
"punpcklbw %%mm7, %%mm0 \n\t"\
"movq %%mm0, 32(%1) \n\t"\
"punpckhbw %%mm7, %%mm1 \n\t"\
"movq %%mm1, 40(%1) \n\t"\
"addl $48, %1 \n\t"\
"decl %2 \n\t"\
" jnz 1b \n\t"\
"movq (%0), %%mm0 \n\t"\
"movq %%mm0, %%mm1 \n\t"\
"punpcklbw %%mm7, %%mm0 \n\t"\
"movq %%mm0, (%1) \n\t"\
"punpckhbw %%mm7, %%mm1 \n\t"\
"movq %%mm1, 8(%1) \n\t"\
: "+a" (src), "+c" (temp_ptr), "+d"(h)\
: "S" (srcStride)\
: "memory"\
@ -2520,28 +2540,22 @@ static void OPNAME ## h264_qpel8_v_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, i
"1: \n\t"\
"movq 2*16+0(%0), %%mm0 \n\t"\
"movq 2*16+8(%0), %%mm1 \n\t"\
"movq 3*16+0(%0), %%mm2 \n\t"\
"movq 3*16+8(%0), %%mm3 \n\t"\
"paddw %%mm2, %%mm0 \n\t"\
"paddw %%mm3, %%mm1 \n\t"\
"paddw 3*16+0(%0), %%mm0 \n\t"\
"paddw 3*16+8(%0), %%mm1 \n\t"\
"psllw $2, %%mm0 \n\t"\
"psllw $2, %%mm1 \n\t"\
"movq 1*16+0(%0), %%mm2 \n\t"\
"movq 1*16+8(%0), %%mm3 \n\t"\
"movq 4*16+0(%0), %%mm4 \n\t"\
"movq 4*16+8(%0), %%mm5 \n\t"\
"paddw %%mm4, %%mm2 \n\t"\
"paddw %%mm5, %%mm3 \n\t"\
"paddw 4*16+0(%0), %%mm2 \n\t"\
"paddw 4*16+8(%0), %%mm3 \n\t"\
"psubw %%mm2, %%mm0 \n\t"\
"psubw %%mm3, %%mm1 \n\t"\
"pmullw %%mm6, %%mm0 \n\t"\
"pmullw %%mm6, %%mm1 \n\t"\
"movq 0*16+0(%0), %%mm2 \n\t"\
"movq 0*16+8(%0), %%mm3 \n\t"\
"movq 5*16+0(%0), %%mm4 \n\t"\
"movq 5*16+8(%0), %%mm5 \n\t"\
"paddw %%mm4, %%mm2 \n\t"\
"paddw %%mm5, %%mm3 \n\t"\
"paddw 5*16+0(%0), %%mm2 \n\t"\
"paddw 5*16+8(%0), %%mm3 \n\t"\
"paddw %%mm2, %%mm0 \n\t"\
"paddw %%mm3, %%mm1 \n\t"\
"paddw %%mm7, %%mm0 \n\t"\

Write Preview
Loading…
Cancel
Save