4c53bacce4
1. Algorithm modification: Instead of having same filter threshold for a whole frame, now we allow the thresholds to be adjusted for each macroblock. In current implementation, to avoid excessive blur on background as reported in issue480(http://code.google.com/p/webm/issues/detail?id=480), we reduce the thresholds for skipped macroblocks. 2. SSE2 optimization: As started in issue479(http://code.google.com/p/webm/issues/detail?id=479), the filter calculation was adjusted for better performance. The c code was also modified accordingly. This made the deblock filter 2x faster, and the decoder was 1.2x faster overall. Next, the demacroblock filter will be modified similarly. Change-Id: I05e54c3f580ccd427487d085096b3174f2ab7e86
315 lines
8.9 KiB
NASM
315 lines
8.9 KiB
NASM
;
|
|
; 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"
|
|
|
|
%define VP8_FILTER_WEIGHT 128
|
|
%define VP8_FILTER_SHIFT 7
|
|
|
|
;void vp8_mbpost_proc_down_mmx(unsigned char *dst,
|
|
; int pitch, int rows, int cols,int flimit)
|
|
extern sym(vp8_rv)
|
|
global sym(vp8_mbpost_proc_down_mmx) PRIVATE
|
|
sym(vp8_mbpost_proc_down_mmx):
|
|
push rbp
|
|
mov rbp, rsp
|
|
SHADOW_ARGS_TO_STACK 5
|
|
GET_GOT rbx
|
|
push rsi
|
|
push rdi
|
|
; end prolog
|
|
|
|
ALIGN_STACK 16, rax
|
|
sub rsp, 136
|
|
|
|
; unsigned char d[16][8] at [rsp]
|
|
; create flimit2 at [rsp+128]
|
|
mov eax, dword ptr arg(4) ;flimit
|
|
mov [rsp+128], eax
|
|
mov [rsp+128+4], eax
|
|
%define flimit2 [rsp+128]
|
|
|
|
%if ABI_IS_32BIT=0
|
|
lea r8, [GLOBAL(sym(vp8_rv))]
|
|
%endif
|
|
|
|
;rows +=8;
|
|
add dword ptr arg(2), 8
|
|
|
|
;for(c=0; c<cols; c+=4)
|
|
.loop_col:
|
|
mov rsi, arg(0) ;s
|
|
pxor mm0, mm0 ;
|
|
|
|
movsxd rax, dword ptr arg(1) ;pitch ;
|
|
|
|
; this copies the last row down into the border 8 rows
|
|
mov rdi, rsi
|
|
mov rdx, arg(2)
|
|
sub rdx, 9
|
|
imul rdx, rax
|
|
lea rdi, [rdi+rdx]
|
|
movq mm1, QWORD ptr[rdi] ; first row
|
|
mov rcx, 8
|
|
.init_borderd ; initialize borders
|
|
lea rdi, [rdi + rax]
|
|
movq [rdi], xmm1
|
|
|
|
dec rcx
|
|
jne .init_borderd
|
|
|
|
neg rax ; rax = -pitch
|
|
|
|
; this copies the first row up into the border 8 rows
|
|
mov rdi, rsi
|
|
movq mm1, QWORD ptr[rdi] ; first row
|
|
mov rcx, 8
|
|
.init_border ; initialize borders
|
|
lea rdi, [rdi + rax]
|
|
movq [rdi], mm1
|
|
|
|
dec rcx
|
|
jne .init_border
|
|
|
|
|
|
lea rsi, [rsi + rax*8]; ; rdi = s[-pitch*8]
|
|
neg rax
|
|
|
|
|
|
pxor mm5, mm5
|
|
pxor mm6, mm6 ;
|
|
|
|
pxor mm7, mm7 ;
|
|
mov rdi, rsi
|
|
|
|
mov rcx, 15 ;
|
|
|
|
.loop_initvar:
|
|
movd mm1, DWORD PTR [rdi];
|
|
punpcklbw mm1, mm0 ;
|
|
|
|
paddw mm5, mm1 ;
|
|
pmullw mm1, mm1 ;
|
|
|
|
movq mm2, mm1 ;
|
|
punpcklwd mm1, mm0 ;
|
|
|
|
punpckhwd mm2, mm0 ;
|
|
paddd mm6, mm1 ;
|
|
|
|
paddd mm7, mm2 ;
|
|
lea rdi, [rdi+rax] ;
|
|
|
|
dec rcx
|
|
jne .loop_initvar
|
|
;save the var and sum
|
|
xor rdx, rdx
|
|
.loop_row:
|
|
movd mm1, DWORD PTR [rsi] ; [s-pitch*8]
|
|
movd mm2, DWORD PTR [rdi] ; [s+pitch*7]
|
|
|
|
punpcklbw mm1, mm0
|
|
punpcklbw mm2, mm0
|
|
|
|
paddw mm5, mm2
|
|
psubw mm5, mm1
|
|
|
|
pmullw mm2, mm2
|
|
movq mm4, mm2
|
|
|
|
punpcklwd mm2, mm0
|
|
punpckhwd mm4, mm0
|
|
|
|
paddd mm6, mm2
|
|
paddd mm7, mm4
|
|
|
|
pmullw mm1, mm1
|
|
movq mm2, mm1
|
|
|
|
punpcklwd mm1, mm0
|
|
psubd mm6, mm1
|
|
|
|
punpckhwd mm2, mm0
|
|
psubd mm7, mm2
|
|
|
|
|
|
movq mm3, mm6
|
|
pslld mm3, 4
|
|
|
|
psubd mm3, mm6
|
|
movq mm1, mm5
|
|
|
|
movq mm4, mm5
|
|
pmullw mm1, mm1
|
|
|
|
pmulhw mm4, mm4
|
|
movq mm2, mm1
|
|
|
|
punpcklwd mm1, mm4
|
|
punpckhwd mm2, mm4
|
|
|
|
movq mm4, mm7
|
|
pslld mm4, 4
|
|
|
|
psubd mm4, mm7
|
|
|
|
psubd mm3, mm1
|
|
psubd mm4, mm2
|
|
|
|
psubd mm3, flimit2
|
|
psubd mm4, flimit2
|
|
|
|
psrad mm3, 31
|
|
psrad mm4, 31
|
|
|
|
packssdw mm3, mm4
|
|
packsswb mm3, mm0
|
|
|
|
movd mm1, DWORD PTR [rsi+rax*8]
|
|
|
|
movq mm2, mm1
|
|
punpcklbw mm1, mm0
|
|
|
|
paddw mm1, mm5
|
|
mov rcx, rdx
|
|
|
|
and rcx, 127
|
|
%if ABI_IS_32BIT=1 && CONFIG_PIC=1
|
|
push rax
|
|
lea rax, [GLOBAL(sym(vp8_rv))]
|
|
movq mm4, [rax + rcx*2] ;vp8_rv[rcx*2]
|
|
pop rax
|
|
%elif ABI_IS_32BIT=0
|
|
movq mm4, [r8 + rcx*2] ;vp8_rv[rcx*2]
|
|
%else
|
|
movq mm4, [sym(vp8_rv) + rcx*2]
|
|
%endif
|
|
paddw mm1, mm4
|
|
;paddw xmm1, eight8s
|
|
psraw mm1, 4
|
|
|
|
packuswb mm1, mm0
|
|
pand mm1, mm3
|
|
|
|
pandn mm3, mm2
|
|
por mm1, mm3
|
|
|
|
and rcx, 15
|
|
movd DWORD PTR [rsp+rcx*4], mm1 ;d[rcx*4]
|
|
|
|
mov rcx, rdx
|
|
sub rcx, 8
|
|
|
|
and rcx, 15
|
|
movd mm1, DWORD PTR [rsp+rcx*4] ;d[rcx*4]
|
|
|
|
movd [rsi], mm1
|
|
lea rsi, [rsi+rax]
|
|
|
|
lea rdi, [rdi+rax]
|
|
add rdx, 1
|
|
|
|
cmp edx, dword arg(2) ;rows
|
|
jl .loop_row
|
|
|
|
|
|
add dword arg(0), 4 ; s += 4
|
|
sub dword arg(3), 4 ; cols -= 4
|
|
cmp dword arg(3), 0
|
|
jg .loop_col
|
|
|
|
add rsp, 136
|
|
pop rsp
|
|
|
|
; begin epilog
|
|
pop rdi
|
|
pop rsi
|
|
RESTORE_GOT
|
|
UNSHADOW_ARGS
|
|
pop rbp
|
|
ret
|
|
%undef flimit2
|
|
|
|
|
|
;void vp8_plane_add_noise_mmx (unsigned char *Start, unsigned char *noise,
|
|
; unsigned char blackclamp[16],
|
|
; unsigned char whiteclamp[16],
|
|
; unsigned char bothclamp[16],
|
|
; unsigned int Width, unsigned int Height, int Pitch)
|
|
extern sym(rand)
|
|
global sym(vp8_plane_add_noise_mmx) PRIVATE
|
|
sym(vp8_plane_add_noise_mmx):
|
|
push rbp
|
|
mov rbp, rsp
|
|
SHADOW_ARGS_TO_STACK 8
|
|
GET_GOT rbx
|
|
push rsi
|
|
push rdi
|
|
; end prolog
|
|
|
|
.addnoise_loop:
|
|
call sym(rand) WRT_PLT
|
|
mov rcx, arg(1) ;noise
|
|
and rax, 0xff
|
|
add rcx, rax
|
|
|
|
; we rely on the fact that the clamping vectors are stored contiguously
|
|
; in black/white/both order. Note that we have to reload this here because
|
|
; rdx could be trashed by rand()
|
|
mov rdx, arg(2) ; blackclamp
|
|
|
|
|
|
mov rdi, rcx
|
|
movsxd rcx, dword arg(5) ;[Width]
|
|
mov rsi, arg(0) ;Pos
|
|
xor rax,rax
|
|
|
|
.addnoise_nextset:
|
|
movq mm1,[rsi+rax] ; get the source
|
|
|
|
psubusb mm1, [rdx] ;blackclamp ; clamp both sides so we don't outrange adding noise
|
|
paddusb mm1, [rdx+32] ;bothclamp
|
|
psubusb mm1, [rdx+16] ;whiteclamp
|
|
|
|
movq mm2,[rdi+rax] ; get the noise for this line
|
|
paddb mm1,mm2 ; add it in
|
|
movq [rsi+rax],mm1 ; store the result
|
|
|
|
add rax,8 ; move to the next line
|
|
|
|
cmp rax, rcx
|
|
jl .addnoise_nextset
|
|
|
|
movsxd rax, dword arg(7) ; Pitch
|
|
add arg(0), rax ; Start += Pitch
|
|
sub dword arg(6), 1 ; Height -= 1
|
|
jg .addnoise_loop
|
|
|
|
; begin epilog
|
|
pop rdi
|
|
pop rsi
|
|
RESTORE_GOT
|
|
UNSHADOW_ARGS
|
|
pop rbp
|
|
ret
|
|
|
|
|
|
SECTION_RODATA
|
|
align 16
|
|
Blur:
|
|
times 16 dw 16
|
|
times 8 dw 64
|
|
times 16 dw 16
|
|
times 8 dw 0
|
|
|
|
rd:
|
|
times 4 dw 0x40
|