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

h264dsp: merge some asm blocks

Browse Source 
Some code was initializing some xmm registers in one asm block and using them
in the following block, assuming they wouldn't be changed in between blocks.

Originally committed as revision 25568 to svn://svn.ffmpeg.org/ffmpeg/trunk
oldabi
Ramiro Polla 14 years ago
parent 3ab354d777
commit b32c9ca9a3
1 changed files with 20 additions and 26 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. 46
      libavcodec/x86/h264_qpel_mmx.c

46
libavcodec/x86/h264_qpel_mmx.c
Unescape View File

@ -299,11 +299,8 @@ static av_noinline void OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(uint8_t *dst,
int h=8;\
__asm__ volatile(\
"pxor %%mm7, %%mm7 \n\t"\
"movq %0, %%mm6 \n\t"\
:: "m"(ff_pw_5)\
);\
do{\
__asm__ volatile(\
"movq "MANGLE(ff_pw_5)", %%mm6\n\t"\
"1: \n\t"\
"movq (%0), %%mm0 \n\t"\
"movq 1(%0), %%mm2 \n\t"\
"movq %%mm0, %%mm1 \n\t"\
@ -336,7 +333,7 @@ static av_noinline void OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(uint8_t *dst,
"punpcklbw %%mm7, %%mm5 \n\t"\
"paddw %%mm3, %%mm2 \n\t"\
"paddw %%mm5, %%mm4 \n\t"\
"movq %5, %%mm5 \n\t"\
"movq "MANGLE(ff_pw_16)", %%mm5\n\t"\
"paddw %%mm5, %%mm2 \n\t"\
"paddw %%mm5, %%mm4 \n\t"\
"paddw %%mm2, %%mm0 \n\t"\
@ -347,15 +344,15 @@ static av_noinline void OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(uint8_t *dst,
"packuswb %%mm1, %%mm0 \n\t"\
PAVGB" %%mm4, %%mm0 \n\t"\
OP(%%mm0, (%1),%%mm5, q)\
"add %4, %0 \n\t"\
"add %4, %1 \n\t"\
"add %3, %2 \n\t"\
: "+a"(src), "+c"(dst), "+d"(src2)\
: "D"((x86_reg)src2Stride), "S"((x86_reg)dstStride),\
"m"(ff_pw_16)\
"add %5, %0 \n\t"\
"add %5, %1 \n\t"\
"add %4, %2 \n\t"\
"decl %3 \n\t"\
"jg 1b \n\t"\
: "+a"(src), "+c"(dst), "+d"(src2), "+g"(h)\
: "D"((x86_reg)src2Stride), "S"((x86_reg)dstStride)\
: "memory"\
);\
}while(--h);\
}\
\
static av_noinline void OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h){\
@ -697,11 +694,8 @@ static av_noinline void OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(uint8_t *dst,
int h=8;\
__asm__ volatile(\
"pxor %%xmm7, %%xmm7 \n\t"\
"movdqa %0, %%xmm6 \n\t"\
:: "m"(ff_pw_5)\
);\
do{\
__asm__ volatile(\
"movdqa "MANGLE(ff_pw_5)", %%xmm6\n\t"\
"1: \n\t"\
"lddqu -2(%0), %%xmm1 \n\t"\
"movdqa %%xmm1, %%xmm0 \n\t"\
"punpckhbw %%xmm7, %%xmm1 \n\t"\
@ -721,22 +715,22 @@ static av_noinline void OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(uint8_t *dst,
"psllw $2, %%xmm2 \n\t"\
"movq (%2), %%xmm3 \n\t"\
"psubw %%xmm1, %%xmm2 \n\t"\
"paddw %5, %%xmm0 \n\t"\
"paddw "MANGLE(ff_pw_16)", %%xmm0\n\t"\
"pmullw %%xmm6, %%xmm2 \n\t"\
"paddw %%xmm0, %%xmm2 \n\t"\
"psraw $5, %%xmm2 \n\t"\
"packuswb %%xmm2, %%xmm2 \n\t"\
"pavgb %%xmm3, %%xmm2 \n\t"\
OP(%%xmm2, (%1), %%xmm4, q)\
"add %4, %0 \n\t"\
"add %4, %1 \n\t"\
"add %3, %2 \n\t"\
: "+a"(src), "+c"(dst), "+d"(src2)\
: "D"((x86_reg)src2Stride), "S"((x86_reg)dstStride),\
"m"(ff_pw_16)\
"add %5, %0 \n\t"\
"add %5, %1 \n\t"\
"add %4, %2 \n\t"\
"decl %3 \n\t"\
"jg 1b \n\t"\
: "+a"(src), "+c"(dst), "+d"(src2), "+g"(h)\
: "D"((x86_reg)src2Stride), "S"((x86_reg)dstStride)\
: "memory"\
);\
}while(--h);\
}\
QPEL_H264_H16_XMM(OPNAME, OP, MMX)\
\

Write Preview
Loading…
Cancel
Save