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Linshizhi
ffmpeg.wasm-core
Commits
7a5b2fa8
Commit
7a5b2fa8
authored
Mar 04, 2006
by
Loren Merritt
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remove some useless instructions
Originally committed as revision 5109 to
svn://svn.ffmpeg.org/ffmpeg/trunk
parent
14b005d0
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1 changed file
with
4 additions
and
18 deletions
+4
-18
h264dsp_mmx.c
libavcodec/i386/h264dsp_mmx.c
+4
-18
No files found.
libavcodec/i386/h264dsp_mmx.c
View file @
7a5b2fa8
...
...
@@ -109,12 +109,9 @@ void ff_h264_idct_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride)
int
dc
=
(
block
[
0
]
+
32
)
>>
6
;
asm
volatile
(
"movd %0, %%mm0
\n\t
"
"pxor %%mm7, %%mm7
\n\t
"
"pshufw $0, %%mm0, %%mm0
\n\t
"
"pxor %%mm1, %%mm1
\n\t
"
"psubw %%mm0, %%mm1
\n\t
"
"pmaxsw %%mm7, %%mm0
\n\t
"
"pmaxsw %%mm7, %%mm1
\n\t
"
"packuswb %%mm0, %%mm0
\n\t
"
"packuswb %%mm1, %%mm1
\n\t
"
::
"r"
(
dc
)
...
...
@@ -149,12 +146,9 @@ void ff_h264_idct8_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride)
int
y
;
asm
volatile
(
"movd %0, %%mm0
\n\t
"
"pxor %%mm7, %%mm7
\n\t
"
"pshufw $0, %%mm0, %%mm0
\n\t
"
"pxor %%mm1, %%mm1
\n\t
"
"psubw %%mm0, %%mm1
\n\t
"
"pmaxsw %%mm7, %%mm0
\n\t
"
"pmaxsw %%mm7, %%mm1
\n\t
"
"packuswb %%mm0, %%mm0
\n\t
"
"packuswb %%mm1, %%mm1
\n\t
"
::
"r"
(
dc
)
...
...
@@ -972,7 +966,6 @@ static void OPNAME ## h264_qpel16_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp,
static void OPNAME ## pixels4_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, uint8_t *src8, int dstStride, int src8Stride, int h)\
{\
asm volatile(\
"pxor %%mm7, %%mm7 \n\t"\
"movq %5, %%mm6 \n\t"\
"movq (%1), %%mm0 \n\t"\
"movq 24(%1), %%mm1 \n\t"\
...
...
@@ -980,10 +973,8 @@ static void OPNAME ## pixels4_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, ui
"paddw %%mm6, %%mm1 \n\t"\
"psraw $5, %%mm0 \n\t"\
"psraw $5, %%mm1 \n\t"\
"pmaxsw %%mm7, %%mm0 \n\t"\
"pmaxsw %%mm7, %%mm1 \n\t"\
"packuswb %%mm7, %%mm0 \n\t"\
"packuswb %%mm7, %%mm1 \n\t"\
"packuswb %%mm0, %%mm0 \n\t"\
"packuswb %%mm1, %%mm1 \n\t"\
PAVGB" (%0), %%mm0 \n\t"\
PAVGB" (%0,%3), %%mm1 \n\t"\
OP(%%mm0, (%2), %%mm4, d)\
...
...
@@ -996,10 +987,8 @@ static void OPNAME ## pixels4_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, ui
"paddw %%mm6, %%mm1 \n\t"\
"psraw $5, %%mm0 \n\t"\
"psraw $5, %%mm1 \n\t"\
"pmaxsw %%mm7, %%mm0 \n\t"\
"pmaxsw %%mm7, %%mm1 \n\t"\
"packuswb %%mm7, %%mm0 \n\t"\
"packuswb %%mm7, %%mm1 \n\t"\
"packuswb %%mm0, %%mm0 \n\t"\
"packuswb %%mm1, %%mm1 \n\t"\
PAVGB" (%0), %%mm0 \n\t"\
PAVGB" (%0,%3), %%mm1 \n\t"\
OP(%%mm0, (%2), %%mm4, d)\
...
...
@@ -1011,7 +1000,6 @@ static void OPNAME ## pixels4_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, ui
static void OPNAME ## pixels8_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, uint8_t *src8, int dstStride, int src8Stride, int h)\
{\
asm volatile(\
"pxor %%mm7, %%mm7 \n\t"\
"movq %0, %%mm6 \n\t"\
::"m"(ff_pw_16)\
);\
...
...
@@ -1023,8 +1011,6 @@ static void OPNAME ## pixels8_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, ui
"paddw %%mm6, %%mm1 \n\t"\
"psraw $5, %%mm0 \n\t"\
"psraw $5, %%mm1 \n\t"\
"pmaxsw %%mm7, %%mm0 \n\t"\
"pmaxsw %%mm7, %%mm1 \n\t"\
"packuswb %%mm1, %%mm0 \n\t"\
PAVGB" (%0), %%mm0 \n\t"\
OP(%%mm0, (%2), %%mm5, q)\
...
...
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