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ffmpeg.wasm-core
Commit ed8ffdf4 authored by Michael Niedermayer's avatar Michael Niedermayer
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optimization 

Originally committed as revision 3438 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 437525c4
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Showing with 31 additions and 17 deletions
libavcodec/i386/dsputil_mmx.c
View file @ ed8ffdf4
......@@ -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"\
......
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