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Fix the reading of too many input pixels

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in VP9_get4x4var_mmx

Change-Id: I4b4a8f45f25ebdfad281f169cc87aba5e2d6f227
This commit is contained in:
Yaowu Xu 2013-08-26 09:21:12 -07:00
parent 66ccf5ddcf
commit 6c5433c836
1 changed files with 8 additions and 8 deletions
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16
vp9/encoder/x86/vp9_variance_impl_mmx.asm
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@ -342,8 +342,8 @@ sym(vp9_get4x4var_mmx):
movsxd rdx, dword ptr arg(3) ;[recon_stride] movsxd rdx, dword ptr arg(3) ;[recon_stride]
; Row 1 ; Row 1
movq mm0, [rax] ; Copy eight bytes to mm0 movd mm0, [rax] ; Copy 4 bytes to mm0
movq mm1, [rbx] ; Copy eight bytes to mm1 movd mm1, [rbx] ; Copy 4 bytes to mm1
punpcklbw mm0, mm6 ; unpack to higher prrcision punpcklbw mm0, mm6 ; unpack to higher prrcision
punpcklbw mm1, mm6 punpcklbw mm1, mm6
psubsw mm0, mm1 ; A-B (low order) to MM0 psubsw mm0, mm1 ; A-B (low order) to MM0
@ -351,12 +351,12 @@ sym(vp9_get4x4var_mmx):
pmaddwd mm0, mm0 ; square and accumulate pmaddwd mm0, mm0 ; square and accumulate
add rbx,rdx ; Inc pointer into ref data add rbx,rdx ; Inc pointer into ref data
add rax,rcx ; Inc pointer into the new data add rax,rcx ; Inc pointer into the new data
movq mm1, [rbx] ; Copy eight bytes to mm1 movd mm1, [rbx] ; Copy 4 bytes to mm1
paddd mm7, mm0 ; accumulate in mm7 paddd mm7, mm0 ; accumulate in mm7
; Row 2 ; Row 2
movq mm0, [rax] ; Copy eight bytes to mm0 movd mm0, [rax] ; Copy 4 bytes to mm0
punpcklbw mm0, mm6 ; unpack to higher prrcision punpcklbw mm0, mm6 ; unpack to higher prrcision
punpcklbw mm1, mm6 punpcklbw mm1, mm6
psubsw mm0, mm1 ; A-B (low order) to MM0 psubsw mm0, mm1 ; A-B (low order) to MM0
@ -365,11 +365,11 @@ sym(vp9_get4x4var_mmx):
pmaddwd mm0, mm0 ; square and accumulate pmaddwd mm0, mm0 ; square and accumulate
add rbx,rdx ; Inc pointer into ref data add rbx,rdx ; Inc pointer into ref data
add rax,rcx ; Inc pointer into the new data add rax,rcx ; Inc pointer into the new data
movq mm1, [rbx] ; Copy eight bytes to mm1 movd mm1, [rbx] ; Copy 4 bytes to mm1
paddd mm7, mm0 ; accumulate in mm7 paddd mm7, mm0 ; accumulate in mm7
; Row 3 ; Row 3
movq mm0, [rax] ; Copy eight bytes to mm0 movd mm0, [rax] ; Copy 4 bytes to mm0
punpcklbw mm0, mm6 ; unpack to higher prrcision punpcklbw mm0, mm6 ; unpack to higher prrcision
punpcklbw mm1, mm6 punpcklbw mm1, mm6
psubsw mm0, mm1 ; A-B (low order) to MM0 psubsw mm0, mm1 ; A-B (low order) to MM0
@ -378,11 +378,11 @@ sym(vp9_get4x4var_mmx):
pmaddwd mm0, mm0 ; square and accumulate pmaddwd mm0, mm0 ; square and accumulate
add rbx,rdx ; Inc pointer into ref data add rbx,rdx ; Inc pointer into ref data
add rax,rcx ; Inc pointer into the new data add rax,rcx ; Inc pointer into the new data
movq mm1, [rbx] ; Copy eight bytes to mm1 movd mm1, [rbx] ; Copy 4 bytes to mm1
paddd mm7, mm0 ; accumulate in mm7 paddd mm7, mm0 ; accumulate in mm7
; Row 4 ; Row 4
movq mm0, [rax] ; Copy eight bytes to mm0 movd mm0, [rax] ; Copy 4 bytes to mm0
punpcklbw mm0, mm6 ; unpack to higher prrcision punpcklbw mm0, mm6 ; unpack to higher prrcision
punpcklbw mm1, mm6 punpcklbw mm1, mm6