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optimization

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Originally committed as revision 3440 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-09-08 00:52:49 +00:00
parent a6e39f45a2
commit 56d8bd5659
1 changed files with 20 additions and 54 deletions
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74
libavcodec/i386/dsputil_mmx.c
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@ -2349,67 +2349,33 @@ static void OPNAME ## h264_qpel4_h_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, i
);\
}\
static void OPNAME ## h264_qpel4_v_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
uint64_t temp[4+5];\
uint64_t *temp_ptr= temp;\
int h= 3;\
src -= 2*srcStride;\
/*FIXME unroll */\
asm volatile(\
"pxor %%mm7, %%mm7 \n\t"\
"1: \n\t"\
"movd (%0), %%mm0 \n\t"\
"addl %2, %0 \n\t"\
"movd (%0), %%mm1 \n\t"\
"addl %2, %0 \n\t"\
"movd (%0), %%mm2 \n\t"\
"addl %2, %0 \n\t"\
"movd (%0), %%mm3 \n\t"\
"addl %2, %0 \n\t"\
"movd (%0), %%mm4 \n\t"\
"addl %2, %0 \n\t"\
"punpcklbw %%mm7, %%mm0 \n\t"\
"movq %%mm0, (%1) \n\t"\
"addl %3, %0 \n\t"\
"movd (%0), %%mm0 \n\t"\
"punpcklbw %%mm7, %%mm0 \n\t"\
"movq %%mm0, 8(%1) \n\t"\
"addl %3, %0 \n\t"\
"movd (%0), %%mm0 \n\t"\
"punpcklbw %%mm7, %%mm0 \n\t"\
"movq %%mm0, 16(%1) \n\t"\
"addl %3, %0 \n\t"\
"addl $24, %1 \n\t"\
"decl %2 \n\t"\
" jnz 1b \n\t"\
: "+a" (src), "+c" (temp_ptr), "+d"(h)\
: "S" (srcStride)\
"punpcklbw %%mm7, %%mm1 \n\t"\
"punpcklbw %%mm7, %%mm2 \n\t"\
"punpcklbw %%mm7, %%mm3 \n\t"\
"punpcklbw %%mm7, %%mm4 \n\t"\
QPEL_H264V(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP)\
QPEL_H264V(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP)\
QPEL_H264V(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP)\
QPEL_H264V(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP)\
\
: "+a"(src), "+c"(dst)\
: "S"(srcStride), "D"(dstStride), "m"(ff_pw_5), "m"(ff_pw_16)\
: "memory"\
);\
\
temp_ptr= temp;\
h= 4;\
\
asm volatile(\
"movq %4, %%mm6 \n\t"\
"movq %5, %%mm7 \n\t"\
"1: \n\t"\
"movq 2*8(%0), %%mm0 \n\t"\
"movq 3*8(%0), %%mm1 \n\t"\
"paddw %%mm1, %%mm0 \n\t"\
"psllw $2, %%mm0 \n\t"\
"movq 1*8(%0), %%mm2 \n\t"\
"movq 4*8(%0), %%mm3 \n\t"\
"paddw %%mm3, %%mm2 \n\t"\
"psubw %%mm2, %%mm0 \n\t"\
"pmullw %%mm6, %%mm0 \n\t"\
"movq 0*8(%0), %%mm4 \n\t"\
"movq 5*8(%0), %%mm5 \n\t"\
"paddw %%mm5, %%mm4 \n\t"\
"paddw %%mm7, %%mm4 \n\t"\
"paddw %%mm4, %%mm0 \n\t"\
"psraw $5, %%mm0 \n\t"\
"packuswb %%mm0, %%mm0 \n\t"\
OP(%%mm0, (%1),%%mm5, d)\
"addl %3, %1 \n\t"\
"addl $8, %0 \n\t"\
"decl %2 \n\t"\
" jnz 1b \n\t"\
\
: "+a"(temp_ptr), "+c"(dst), "+d"(h)\
: "S"(dstStride), "m"(ff_pw_5), "m"(ff_pw_16)\
: "memory"\
);\
}\
static void OPNAME ## h264_qpel4_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, uint8_t *src, int dstStride, int tmpStride, int srcStride){\
const int h=4;\