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Use pmaddubsw for the mbedge_filter (>=ssse3), 6-10 cycles faster. 

Originally committed as revision 24514 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ronald S. Bultje 2010-07-26 21:18:19 +00:00
parent e25dee602f
commit ab4d031889
1 changed files with 78 additions and 2 deletions
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80
libavcodec/x86/vp8dsp.asm
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@ -145,6 +145,10 @@ filter_h6_shuf3: db 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11
pw_20091: times 4 dw 20091
pw_17734: times 4 dw 17734
pb_27_63: times 8 db 27, 63
pb_18_63: times 8 db 18, 63
pb_9_63: times 8 db 9, 63
cextern pb_1
cextern pw_3
cextern pb_3
@ -2175,12 +2179,17 @@ cglobal vp8_%2_loop_filter16y_mbedge_%1, 5, %3, %5
%define stack_reg hev_thr_reg
%endif
%define ssse3_or_higher 0
%ifnidn %1, sse2
%if mmsize == 16
pxor m7, m7
%define ssse3_or_higher 1
%endif
%endif
%if ssse3_or_higher
pxor m7, m7
%endif
%ifndef m8 ; mmx/mmxext or sse2 on x86-32
; splat function arguments
SPLATB_REG m0, E_reg, m7 ; E
@ -2576,7 +2585,11 @@ cglobal vp8_%2_loop_filter16y_mbedge_%1, 5, %3, %5
paddusb m4, m1 ; q0-f1
; filter_mbedge (m2-m5 = p1-q1; lim_res carries w)
%if ssse3_or_higher
mova m7, [pb_1]
%else
mova m7, [pw_63]
%endif
%ifdef m8
SWAP 1, 8
%else
@ -2585,15 +2598,40 @@ cglobal vp8_%2_loop_filter16y_mbedge_%1, 5, %3, %5
pxor m0, m0
mova m6, m1
pcmpgtb m0, m1 ; which are negative
%if ssse3_or_higher
punpcklbw m6, m7 ; interleave with "1" for rounding
punpckhbw m1, m7
%else
punpcklbw m6, m0 ; signed byte->word
punpckhbw m1, m0
%endif
mova lim_sign, m0
%if ssse3_or_higher
mova m7, [pb_27_63]
%ifndef m8
mova lim_res, m1
%endif
%ifdef m10
SWAP 0, 10 ; don't lose lim_sign copy
%endif
mova m0, m7
pmaddubsw m7, m6
SWAP 6, 7
pmaddubsw m0, m1
SWAP 1, 0
%ifdef m10
SWAP 0, 10
%else
mova m0, lim_sign
%endif
%else
mova mask_res, m6 ; backup for later in filter
mova lim_res, m1
pmullw m6, [pw_27]
pmullw m1, [pw_27]
paddw m6, m7
paddw m1, m7
%endif
psraw m6, 7
psraw m1, 7
packsswb m6, m1 ; a0
@ -2601,18 +2639,39 @@ cglobal vp8_%2_loop_filter16y_mbedge_%1, 5, %3, %5
psubb m1, m6
pand m1, m0 ; -a0
pandn m0, m6 ; +a0
%if ssse3_or_higher
mova m6, [pb_18_63] ; pipelining
%endif
psubusb m3, m1
paddusb m4, m1
paddusb m3, m0 ; p0+a0
psubusb m4, m0 ; q0-a0
%if ssse3_or_higher
SWAP 6, 7
%ifdef m10
SWAP 1, 10
%else
mova m1, lim_res
%endif
mova m0, m7
pmaddubsw m7, m6
SWAP 6, 7
pmaddubsw m0, m1
SWAP 1, 0
%ifdef m10
SWAP 0, 10
%endif
mova m0, lim_sign
%else
mova m6, mask_res
mova m1, lim_res
mova m0, lim_sign
pmullw m6, [pw_18]
pmullw m1, [pw_18]
paddw m6, m7
paddw m1, m7
%endif
mova m0, lim_sign
psraw m6, 7
psraw m1, 7
packsswb m6, m1 ; a1
@ -2620,11 +2679,27 @@ cglobal vp8_%2_loop_filter16y_mbedge_%1, 5, %3, %5
psubb m1, m6
pand m1, m0 ; -a1
pandn m0, m6 ; +a1
%if ssse3_or_higher
mova m6, [pb_9_63]
%endif
psubusb m2, m1
paddusb m5, m1
paddusb m2, m0 ; p1+a1
psubusb m5, m0 ; q1-a1
%if ssse3_or_higher
SWAP 6, 7
%ifdef m10
SWAP 1, 10
%else
mova m1, lim_res
%endif
mova m0, m7
pmaddubsw m7, m6
SWAP 6, 7
pmaddubsw m0, m1
SWAP 1, 0
%else
%ifdef m8
SWAP 6, 12
SWAP 1, 8
@ -2636,6 +2711,7 @@ cglobal vp8_%2_loop_filter16y_mbedge_%1, 5, %3, %5
pmullw m1, [pw_9]
paddw m6, m7
paddw m1, m7
%endif
%ifdef m9
SWAP 7, 9
%else