generic-library/vpx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge "improve vpx_filter_block1d* based on replace paddsw+psrlw to pmulhrsw"

Browse Source
This commit is contained in:
James Zern 2016-07-02 03:08:32 +00:00 committed by Gerrit Code Review
commit 5afa3b9150
1 changed files with 8 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
vpx_dsp/x86/vpx_subpixel_bilinear_ssse3.asm
View File

@ -14,14 +14,14 @@
mov rdx, arg(5) ;filter ptr
mov rsi, arg(0) ;src_ptr
mov rdi, arg(2) ;output_ptr
mov rcx, 0x0400040
mov ecx, 0x01000100
movdqa xmm3, [rdx] ;load filters
psrldq xmm3, 6
packsswb xmm3, xmm3
pshuflw xmm3, xmm3, 0b ;k3_k4
movq xmm2, rcx ;rounding
movd xmm2, ecx ;rounding_shift
pshufd xmm2, xmm2, 0
movsxd rax, DWORD PTR arg(1) ;pixels_per_line
@ -33,8 +33,7 @@
punpcklbw xmm0, xmm1
pmaddubsw xmm0, xmm3
paddsw xmm0, xmm2 ;rounding
psraw xmm0, 7 ;shift
pmulhrsw xmm0, xmm2 ;rounding(+64)+shift(>>7)
packuswb xmm0, xmm0 ;pack to byte
%if %1
@ -51,7 +50,7 @@
mov rdx, arg(5) ;filter ptr
mov rsi, arg(0) ;src_ptr
mov rdi, arg(2) ;output_ptr
mov rcx, 0x0400040
mov ecx, 0x01000100
movdqa xmm7, [rdx] ;load filters
psrldq xmm7, 6
@ -59,7 +58,7 @@
pshuflw xmm7, xmm7, 0b ;k3_k4
punpcklwd xmm7, xmm7
movq xmm6, rcx ;rounding
movd xmm6, ecx ;rounding_shift
pshufd xmm6, xmm6, 0
movsxd rax, DWORD PTR arg(1) ;pixels_per_line
@ -71,8 +70,7 @@
punpcklbw xmm0, xmm1
pmaddubsw xmm0, xmm7
paddsw xmm0, xmm6 ;rounding
psraw xmm0, 7 ;shift
pmulhrsw xmm0, xmm6 ;rounding(+64)+shift(>>7)
packuswb xmm0, xmm0 ;pack back to byte
%if %1
@ -92,10 +90,8 @@
pmaddubsw xmm0, xmm7
pmaddubsw xmm2, xmm7
paddsw xmm0, xmm6 ;rounding
paddsw xmm2, xmm6
psraw xmm0, 7 ;shift
psraw xmm2, 7
pmulhrsw xmm0, xmm6 ;rounding(+64)+shift(>>7)
pmulhrsw xmm2, xmm6
packuswb xmm0, xmm2 ;pack back to byte
%if %1