ref: 4ba3098ecb471be486b665c7f8716645ba8e22c6
dir: /vpx_dsp/x86/deblock_sse2.asm/
;
; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license
; that can be found in the LICENSE file in the root of the source
; tree. An additional intellectual property rights grant can be found
; in the file PATENTS. All contributing project authors may
; be found in the AUTHORS file in the root of the source tree.
;
%include "vpx_ports/x86_abi_support.asm"
;macro in deblock functions
%macro FIRST_2_ROWS 0
movdqa xmm4, xmm0
movdqa xmm6, xmm0
movdqa xmm5, xmm1
pavgb xmm5, xmm3
;calculate absolute value
psubusb xmm4, xmm1
psubusb xmm1, xmm0
psubusb xmm6, xmm3
psubusb xmm3, xmm0
paddusb xmm4, xmm1
paddusb xmm6, xmm3
;get threshold
movdqa xmm2, flimit
pxor xmm1, xmm1
movdqa xmm7, xmm2
;get mask
psubusb xmm2, xmm4
psubusb xmm7, xmm6
pcmpeqb xmm2, xmm1
pcmpeqb xmm7, xmm1
por xmm7, xmm2
%endmacro
%macro SECOND_2_ROWS 0
movdqa xmm6, xmm0
movdqa xmm4, xmm0
movdqa xmm2, xmm1
pavgb xmm1, xmm3
;calculate absolute value
psubusb xmm6, xmm2
psubusb xmm2, xmm0
psubusb xmm4, xmm3
psubusb xmm3, xmm0
paddusb xmm6, xmm2
paddusb xmm4, xmm3
pavgb xmm5, xmm1
;get threshold
movdqa xmm2, flimit
pxor xmm1, xmm1
movdqa xmm3, xmm2
;get mask
psubusb xmm2, xmm6
psubusb xmm3, xmm4
pcmpeqb xmm2, xmm1
pcmpeqb xmm3, xmm1
por xmm7, xmm2
por xmm7, xmm3
pavgb xmm5, xmm0
;decide if or not to use filtered value
pand xmm0, xmm7
pandn xmm7, xmm5
paddusb xmm0, xmm7
%endmacro
%macro UPDATE_FLIMIT 0
movdqu xmm2, XMMWORD PTR [rbx]
movdqu [rsp], xmm2
add rbx, 16
%endmacro
SECTION .text
;void vpx_post_proc_down_and_across_mb_row_sse2
;(
; unsigned char *src_ptr,
; unsigned char *dst_ptr,
; int src_pixels_per_line,
; int dst_pixels_per_line,
; int cols,
; int *flimits,
; int size
;)
global sym(vpx_post_proc_down_and_across_mb_row_sse2) PRIVATE
sym(vpx_post_proc_down_and_across_mb_row_sse2):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 7
SAVE_XMM 7
push rbx
push rsi
push rdi
; end prolog
ALIGN_STACK 16, rax
sub rsp, 16
; put flimit on stack
mov rbx, arg(5) ;flimits ptr
UPDATE_FLIMIT
%define flimit [rsp]
mov rsi, arg(0) ;src_ptr
mov rdi, arg(1) ;dst_ptr
movsxd rax, DWORD PTR arg(2) ;src_pixels_per_line
movsxd rcx, DWORD PTR arg(6) ;rows in a macroblock
.nextrow:
xor rdx, rdx ;col
.nextcol:
;load current and next 2 rows
movdqu xmm0, XMMWORD PTR [rsi]
movdqu xmm1, XMMWORD PTR [rsi + rax]
movdqu xmm3, XMMWORD PTR [rsi + 2*rax]
FIRST_2_ROWS
;load above 2 rows
neg rax
movdqu xmm1, XMMWORD PTR [rsi + 2*rax]
movdqu xmm3, XMMWORD PTR [rsi + rax]
SECOND_2_ROWS
movdqu XMMWORD PTR [rdi], xmm0
neg rax ; positive stride
add rsi, 16
add rdi, 16
add rdx, 16
cmp edx, dword arg(4) ;cols
jge .downdone
UPDATE_FLIMIT
jmp .nextcol
.downdone:
; done with the all cols, start the across filtering in place
sub rsi, rdx
sub rdi, rdx
mov rbx, arg(5) ; flimits
UPDATE_FLIMIT
; dup the first byte into the left border 8 times
movq mm1, [rdi]
punpcklbw mm1, mm1
punpcklwd mm1, mm1
punpckldq mm1, mm1
mov rdx, -8
movq [rdi+rdx], mm1
; dup the last byte into the right border
movsxd rdx, dword arg(4)
movq mm1, [rdi + rdx + -1]
punpcklbw mm1, mm1
punpcklwd mm1, mm1
punpckldq mm1, mm1
movq [rdi+rdx], mm1
xor rdx, rdx
movq mm0, QWORD PTR [rdi-16];
movq mm1, QWORD PTR [rdi-8];
.acrossnextcol:
movdqu xmm0, XMMWORD PTR [rdi + rdx]
movdqu xmm1, XMMWORD PTR [rdi + rdx -2]
movdqu xmm3, XMMWORD PTR [rdi + rdx -1]
FIRST_2_ROWS
movdqu xmm1, XMMWORD PTR [rdi + rdx +1]
movdqu xmm3, XMMWORD PTR [rdi + rdx +2]
SECOND_2_ROWS
movq QWORD PTR [rdi+rdx-16], mm0 ; store previous 8 bytes
movq QWORD PTR [rdi+rdx-8], mm1 ; store previous 8 bytes
movdq2q mm0, xmm0
psrldq xmm0, 8
movdq2q mm1, xmm0
add rdx, 16
cmp edx, dword arg(4) ;cols
jge .acrossdone
UPDATE_FLIMIT
jmp .acrossnextcol
.acrossdone:
; last 16 pixels
movq QWORD PTR [rdi+rdx-16], mm0
cmp edx, dword arg(4)
jne .throw_last_8
movq QWORD PTR [rdi+rdx-8], mm1
.throw_last_8:
; done with this rwo
add rsi,rax ;next src line
mov eax, dword arg(3) ;dst_pixels_per_line
add rdi,rax ;next destination
mov eax, dword arg(2) ;src_pixels_per_line
mov rbx, arg(5) ;flimits
UPDATE_FLIMIT
dec rcx ;decrement count
jnz .nextrow ;next row
add rsp, 16
pop rsp
; begin epilog
pop rdi
pop rsi
pop rbx
RESTORE_XMM
UNSHADOW_ARGS
pop rbp
ret
%undef flimit
;void vpx_mbpost_proc_across_ip_sse2(unsigned char *src,
; int pitch, int rows, int cols,int flimit)
global sym(vpx_mbpost_proc_across_ip_sse2) PRIVATE
sym(vpx_mbpost_proc_across_ip_sse2):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 5
SAVE_XMM 7
GET_GOT rbx
push rsi
push rdi
; end prolog
ALIGN_STACK 16, rax
sub rsp, 16
; create flimit4 at [rsp]
mov eax, dword ptr arg(4) ;flimit
mov [rsp], eax
mov [rsp+4], eax
mov [rsp+8], eax
mov [rsp+12], eax
%define flimit4 [rsp]
;for(r=0;r<rows;r++)
.ip_row_loop:
xor rdx, rdx ;sumsq=0;
xor rcx, rcx ;sum=0;
mov rsi, arg(0); s
; dup the first byte into the left border 8 times
movq mm1, [rsi]
punpcklbw mm1, mm1
punpcklwd mm1, mm1
punpckldq mm1, mm1
mov rdi, -8
movq [rsi+rdi], mm1
; dup the last byte into the right border
movsxd rdx, dword arg(3)
movq mm1, [rsi + rdx + -1]
punpcklbw mm1, mm1
punpcklwd mm1, mm1
punpckldq mm1, mm1
movq [rsi+rdx], mm1
.ip_var_loop:
;for(i=-8;i<=6;i++)
;{
; sumsq += s[i]*s[i];
; sum += s[i];
;}
movzx eax, byte [rsi+rdi]
add ecx, eax
mul al
add edx, eax
add rdi, 1
cmp rdi, 6
jle .ip_var_loop
;mov rax, sumsq
;movd xmm7, rax
movd xmm7, edx
;mov rax, sum
;movd xmm6, rax
movd xmm6, ecx
mov rsi, arg(0) ;s
xor rcx, rcx
movsxd rdx, dword arg(3) ;cols
add rdx, 8
pxor mm0, mm0
pxor mm1, mm1
pxor xmm0, xmm0
.nextcol4:
movd xmm1, DWORD PTR [rsi+rcx-8] ; -8 -7 -6 -5
movd xmm2, DWORD PTR [rsi+rcx+7] ; +7 +8 +9 +10
punpcklbw xmm1, xmm0 ; expanding
punpcklbw xmm2, xmm0 ; expanding
punpcklwd xmm1, xmm0 ; expanding to dwords
punpcklwd xmm2, xmm0 ; expanding to dwords
psubd xmm2, xmm1 ; 7--8 8--7 9--6 10--5
paddd xmm1, xmm1 ; -8*2 -7*2 -6*2 -5*2
paddd xmm1, xmm2 ; 7+-8 8+-7 9+-6 10+-5
pmaddwd xmm1, xmm2 ; squared of 7+-8 8+-7 9+-6 10+-5
paddd xmm6, xmm2
paddd xmm7, xmm1
pshufd xmm6, xmm6, 0 ; duplicate the last ones
pshufd xmm7, xmm7, 0 ; duplicate the last ones
psrldq xmm1, 4 ; 8--7 9--6 10--5 0000
psrldq xmm2, 4 ; 8--7 9--6 10--5 0000
pshufd xmm3, xmm1, 3 ; 0000 8--7 8--7 8--7 squared
pshufd xmm4, xmm2, 3 ; 0000 8--7 8--7 8--7 squared
paddd xmm6, xmm4
paddd xmm7, xmm3
pshufd xmm3, xmm1, 01011111b ; 0000 0000 9--6 9--6 squared
pshufd xmm4, xmm2, 01011111b ; 0000 0000 9--6 9--6 squared
paddd xmm7, xmm3
paddd xmm6, xmm4
pshufd xmm3, xmm1, 10111111b ; 0000 0000 8--7 8--7 squared
pshufd xmm4, xmm2, 10111111b ; 0000 0000 8--7 8--7 squared
paddd xmm7, xmm3
paddd xmm6, xmm4
movdqa xmm3, xmm6
pmaddwd xmm3, xmm3
movdqa xmm5, xmm7
pslld xmm5, 4
psubd xmm5, xmm7
psubd xmm5, xmm3
psubd xmm5, flimit4
psrad xmm5, 31
packssdw xmm5, xmm0
packsswb xmm5, xmm0
movd xmm1, DWORD PTR [rsi+rcx]
movq xmm2, xmm1
punpcklbw xmm1, xmm0
punpcklwd xmm1, xmm0
paddd xmm1, xmm6
paddd xmm1, [GLOBAL(four8s)]
psrad xmm1, 4
packssdw xmm1, xmm0
packuswb xmm1, xmm0
pand xmm1, xmm5
pandn xmm5, xmm2
por xmm5, xmm1
movd [rsi+rcx-8], mm0
movq mm0, mm1
movdq2q mm1, xmm5
psrldq xmm7, 12
psrldq xmm6, 12
add rcx, 4
cmp rcx, rdx
jl .nextcol4
;s+=pitch;
movsxd rax, dword arg(1)
add arg(0), rax
sub dword arg(2), 1 ;rows-=1
cmp dword arg(2), 0
jg .ip_row_loop
add rsp, 16
pop rsp
; begin epilog
pop rdi
pop rsi
RESTORE_GOT
RESTORE_XMM
UNSHADOW_ARGS
pop rbp
ret
%undef flimit4
SECTION_RODATA
align 16
four8s:
times 4 dd 8