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|
;
; 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"
;void vp9_lpf_horizontal_4_mmx
;(
; unsigned char *src_ptr,
; int src_pixel_step,
; const char *blimit,
; const char *limit,
; const char *thresh,
; int count
;)
global sym(vp9_lpf_horizontal_4_mmx) PRIVATE
sym(vp9_lpf_horizontal_4_mmx):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 6
GET_GOT rbx
push rsi
push rdi
; end prolog
ALIGN_STACK 16, rax
sub rsp, 32 ; reserve 32 bytes
%define t0 [rsp + 0] ;__declspec(align(16)) char t0[8];
%define t1 [rsp + 16] ;__declspec(align(16)) char t1[8];
mov rsi, arg(0) ;src_ptr
movsxd rax, dword ptr arg(1) ;src_pixel_step ; destination pitch?
movsxd rcx, dword ptr arg(5) ;count
.next8_h:
mov rdx, arg(3) ;limit
movq mm7, [rdx]
mov rdi, rsi ; rdi points to row +1 for indirect addressing
add rdi, rax
; calculate breakout conditions
movq mm2, [rdi+2*rax] ; q3
movq mm1, [rsi+2*rax] ; q2
movq mm6, mm1 ; q2
psubusb mm1, mm2 ; q2-=q3
psubusb mm2, mm6 ; q3-=q2
por mm1, mm2 ; abs(q3-q2)
psubusb mm1, mm7 ;
movq mm4, [rsi+rax] ; q1
movq mm3, mm4 ; q1
psubusb mm4, mm6 ; q1-=q2
psubusb mm6, mm3 ; q2-=q1
por mm4, mm6 ; abs(q2-q1)
psubusb mm4, mm7
por mm1, mm4
movq mm4, [rsi] ; q0
movq mm0, mm4 ; q0
psubusb mm4, mm3 ; q0-=q1
psubusb mm3, mm0 ; q1-=q0
por mm4, mm3 ; abs(q0-q1)
movq t0, mm4 ; save to t0
psubusb mm4, mm7
por mm1, mm4
neg rax ; negate pitch to deal with above border
movq mm2, [rsi+4*rax] ; p3
movq mm4, [rdi+4*rax] ; p2
movq mm5, mm4 ; p2
psubusb mm4, mm2 ; p2-=p3
psubusb mm2, mm5 ; p3-=p2
por mm4, mm2 ; abs(p3 - p2)
psubusb mm4, mm7
por mm1, mm4
movq mm4, [rsi+2*rax] ; p1
movq mm3, mm4 ; p1
psubusb mm4, mm5 ; p1-=p2
psubusb mm5, mm3 ; p2-=p1
por mm4, mm5 ; abs(p2 - p1)
psubusb mm4, mm7
por mm1, mm4
movq mm2, mm3 ; p1
movq mm4, [rsi+rax] ; p0
movq mm5, mm4 ; p0
psubusb mm4, mm3 ; p0-=p1
psubusb mm3, mm5 ; p1-=p0
por mm4, mm3 ; abs(p1 - p0)
movq t1, mm4 ; save to t1
psubusb mm4, mm7
por mm1, mm4
movq mm3, [rdi] ; q1
movq mm4, mm3 ; q1
psubusb mm3, mm2 ; q1-=p1
psubusb mm2, mm4 ; p1-=q1
por mm2, mm3 ; abs(p1-q1)
pand mm2, [GLOBAL(tfe)] ; set lsb of each byte to zero
psrlw mm2, 1 ; abs(p1-q1)/2
movq mm6, mm5 ; p0
movq mm3, [rsi] ; q0
psubusb mm5, mm3 ; p0-=q0
psubusb mm3, mm6 ; q0-=p0
por mm5, mm3 ; abs(p0 - q0)
paddusb mm5, mm5 ; abs(p0-q0)*2
paddusb mm5, mm2 ; abs (p0 - q0) *2 + abs(p1-q1)/2
mov rdx, arg(2) ;blimit ; get blimit
movq mm7, [rdx] ; blimit
psubusb mm5, mm7 ; abs (p0 - q0) *2 + abs(p1-q1)/2 > blimit
por mm1, mm5
pxor mm5, mm5
pcmpeqb mm1, mm5 ; mask mm1
; calculate high edge variance
mov rdx, arg(4) ;thresh ; get thresh
movq mm7, [rdx] ;
movq mm4, t0 ; get abs (q1 - q0)
psubusb mm4, mm7
movq mm3, t1 ; get abs (p1 - p0)
psubusb mm3, mm7
paddb mm4, mm3 ; abs(q1 - q0) > thresh || abs(p1 - p0) > thresh
pcmpeqb mm4, mm5
pcmpeqb mm5, mm5
pxor mm4, mm5
; start work on filters
movq mm2, [rsi+2*rax] ; p1
movq mm7, [rdi] ; q1
pxor mm2, [GLOBAL(t80)] ; p1 offset to convert to signed values
pxor mm7, [GLOBAL(t80)] ; q1 offset to convert to signed values
psubsb mm2, mm7 ; p1 - q1
pand mm2, mm4 ; high var mask (hvm)(p1 - q1)
pxor mm6, [GLOBAL(t80)] ; offset to convert to signed values
pxor mm0, [GLOBAL(t80)] ; offset to convert to signed values
movq mm3, mm0 ; q0
psubsb mm0, mm6 ; q0 - p0
paddsb mm2, mm0 ; 1 * (q0 - p0) + hvm(p1 - q1)
paddsb mm2, mm0 ; 2 * (q0 - p0) + hvm(p1 - q1)
paddsb mm2, mm0 ; 3 * (q0 - p0) + hvm(p1 - q1)
pand mm1, mm2 ; mask filter values we don't care about
movq mm2, mm1
paddsb mm1, [GLOBAL(t4)] ; 3* (q0 - p0) + hvm(p1 - q1) + 4
paddsb mm2, [GLOBAL(t3)] ; 3* (q0 - p0) + hvm(p1 - q1) + 3
pxor mm0, mm0 ;
pxor mm5, mm5
punpcklbw mm0, mm2 ;
punpckhbw mm5, mm2 ;
psraw mm0, 11 ;
psraw mm5, 11
packsswb mm0, mm5
movq mm2, mm0 ; (3* (q0 - p0) + hvm(p1 - q1) + 3) >> 3;
pxor mm0, mm0 ; 0
movq mm5, mm1 ; abcdefgh
punpcklbw mm0, mm1 ; e0f0g0h0
psraw mm0, 11 ; sign extended shift right by 3
pxor mm1, mm1 ; 0
punpckhbw mm1, mm5 ; a0b0c0d0
psraw mm1, 11 ; sign extended shift right by 3
movq mm5, mm0 ; save results
packsswb mm0, mm1 ; (3* (q0 - p0) + hvm(p1 - q1) + 4) >>3
paddsw mm5, [GLOBAL(ones)]
paddsw mm1, [GLOBAL(ones)]
psraw mm5, 1 ; partial shifted one more time for 2nd tap
psraw mm1, 1 ; partial shifted one more time for 2nd tap
packsswb mm5, mm1 ; (3* (q0 - p0) + hvm(p1 - q1) + 4) >>4
pandn mm4, mm5 ; high edge variance additive
paddsb mm6, mm2 ; p0+= p0 add
pxor mm6, [GLOBAL(t80)] ; unoffset
movq [rsi+rax], mm6 ; write back
movq mm6, [rsi+2*rax] ; p1
pxor mm6, [GLOBAL(t80)] ; reoffset
paddsb mm6, mm4 ; p1+= p1 add
pxor mm6, [GLOBAL(t80)] ; unoffset
movq [rsi+2*rax], mm6 ; write back
psubsb mm3, mm0 ; q0-= q0 add
pxor mm3, [GLOBAL(t80)] ; unoffset
movq [rsi], mm3 ; write back
psubsb mm7, mm4 ; q1-= q1 add
pxor mm7, [GLOBAL(t80)] ; unoffset
movq [rdi], mm7 ; write back
add rsi,8
neg rax
dec rcx
jnz .next8_h
add rsp, 32
pop rsp
; begin epilog
pop rdi
pop rsi
RESTORE_GOT
UNSHADOW_ARGS
pop rbp
ret
;void vp9_lpf_vertical_4_mmx
;(
; unsigned char *src_ptr,
; int src_pixel_step,
; const char *blimit,
; const char *limit,
; const char *thresh,
; int count
;)
global sym(vp9_lpf_vertical_4_mmx) PRIVATE
sym(vp9_lpf_vertical_4_mmx):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 6
GET_GOT rbx
push rsi
push rdi
; end prolog
ALIGN_STACK 16, rax
sub rsp, 64 ; reserve 64 bytes
%define t0 [rsp + 0] ;__declspec(align(16)) char t0[8];
%define t1 [rsp + 16] ;__declspec(align(16)) char t1[8];
%define srct [rsp + 32] ;__declspec(align(16)) char srct[32];
mov rsi, arg(0) ;src_ptr
movsxd rax, dword ptr arg(1) ;src_pixel_step ; destination pitch?
lea rsi, [rsi + rax*4 - 4]
movsxd rcx, dword ptr arg(5) ;count
.next8_v:
mov rdi, rsi ; rdi points to row +1 for indirect addressing
add rdi, rax
;transpose
movq mm6, [rsi+2*rax] ; 67 66 65 64 63 62 61 60
movq mm7, mm6 ; 77 76 75 74 73 72 71 70
punpckhbw mm7, [rdi+2*rax] ; 77 67 76 66 75 65 74 64
punpcklbw mm6, [rdi+2*rax] ; 73 63 72 62 71 61 70 60
movq mm4, [rsi] ; 47 46 45 44 43 42 41 40
movq mm5, mm4 ; 47 46 45 44 43 42 41 40
punpckhbw mm5, [rsi+rax] ; 57 47 56 46 55 45 54 44
punpcklbw mm4, [rsi+rax] ; 53 43 52 42 51 41 50 40
movq mm3, mm5 ; 57 47 56 46 55 45 54 44
punpckhwd mm5, mm7 ; 77 67 57 47 76 66 56 46
punpcklwd mm3, mm7 ; 75 65 55 45 74 64 54 44
movq mm2, mm4 ; 53 43 52 42 51 41 50 40
punpckhwd mm4, mm6 ; 73 63 53 43 72 62 52 42
punpcklwd mm2, mm6 ; 71 61 51 41 70 60 50 40
neg rax
movq mm6, [rsi+rax*2] ; 27 26 25 24 23 22 21 20
movq mm1, mm6 ; 27 26 25 24 23 22 21 20
punpckhbw mm6, [rsi+rax] ; 37 27 36 36 35 25 34 24
punpcklbw mm1, [rsi+rax] ; 33 23 32 22 31 21 30 20
movq mm7, [rsi+rax*4]; ; 07 06 05 04 03 02 01 00
punpckhbw mm7, [rdi+rax*4] ; 17 07 16 06 15 05 14 04
movq mm0, mm7 ; 17 07 16 06 15 05 14 04
punpckhwd mm7, mm6 ; 37 27 17 07 36 26 16 06
punpcklwd mm0, mm6 ; 35 25 15 05 34 24 14 04
movq mm6, mm7 ; 37 27 17 07 36 26 16 06
punpckhdq mm7, mm5 ; 77 67 57 47 37 27 17 07 = q3
punpckldq mm6, mm5 ; 76 66 56 46 36 26 16 06 = q2
movq mm5, mm6 ; 76 66 56 46 36 26 16 06
psubusb mm5, mm7 ; q2-q3
psubusb mm7, mm6 ; q3-q2
por mm7, mm5; ; mm7=abs (q3-q2)
movq mm5, mm0 ; 35 25 15 05 34 24 14 04
punpckhdq mm5, mm3 ; 75 65 55 45 35 25 15 05 = q1
punpckldq mm0, mm3 ; 74 64 54 44 34 24 15 04 = q0
movq mm3, mm5 ; 75 65 55 45 35 25 15 05 = q1
psubusb mm3, mm6 ; q1-q2
psubusb mm6, mm5 ; q2-q1
por mm6, mm3 ; mm6=abs(q2-q1)
lea rdx, srct
movq [rdx+24], mm5 ; save q1
movq [rdx+16], mm0 ; save q0
movq mm3, [rsi+rax*4] ; 07 06 05 04 03 02 01 00
punpcklbw mm3, [rdi+rax*4] ; 13 03 12 02 11 01 10 00
movq mm0, mm3 ; 13 03 12 02 11 01 10 00
punpcklwd mm0, mm1 ; 31 21 11 01 30 20 10 00
punpckhwd mm3, mm1 ; 33 23 13 03 32 22 12 02
movq mm1, mm0 ; 31 21 11 01 30 20 10 00
punpckldq mm0, mm2 ; 70 60 50 40 30 20 10 00 =p3
punpckhdq mm1, mm2 ; 71 61 51 41 31 21 11 01 =p2
movq mm2, mm1 ; 71 61 51 41 31 21 11 01 =p2
psubusb mm2, mm0 ; p2-p3
psubusb mm0, mm1 ; p3-p2
por mm0, mm2 ; mm0=abs(p3-p2)
movq mm2, mm3 ; 33 23 13 03 32 22 12 02
punpckldq mm2, mm4 ; 72 62 52 42 32 22 12 02 = p1
punpckhdq mm3, mm4 ; 73 63 53 43 33 23 13 03 = p0
movq [rdx+8], mm3 ; save p0
movq [rdx], mm2 ; save p1
movq mm5, mm2 ; mm5 = p1
psubusb mm2, mm1 ; p1-p2
psubusb mm1, mm5 ; p2-p1
por mm1, mm2 ; mm1=abs(p2-p1)
mov rdx, arg(3) ;limit
movq mm4, [rdx] ; mm4 = limit
psubusb mm7, mm4
psubusb mm0, mm4
psubusb mm1, mm4
psubusb mm6, mm4
por mm7, mm6
por mm0, mm1
por mm0, mm7 ; abs(q3-q2) > limit || abs(p3-p2) > limit ||abs(p2-p1) > limit || abs(q2-q1) > limit
movq mm1, mm5 ; p1
movq mm7, mm3 ; mm3=mm7=p0
psubusb mm7, mm5 ; p0 - p1
psubusb mm5, mm3 ; p1 - p0
por mm5, mm7 ; abs(p1-p0)
movq t0, mm5 ; save abs(p1-p0)
lea rdx, srct
psubusb mm5, mm4
por mm0, mm5 ; mm0=mask
movq mm5, [rdx+16] ; mm5=q0
movq mm7, [rdx+24] ; mm7=q1
movq mm6, mm5 ; mm6=q0
movq mm2, mm7 ; q1
psubusb mm5, mm7 ; q0-q1
psubusb mm7, mm6 ; q1-q0
por mm7, mm5 ; abs(q1-q0)
movq t1, mm7 ; save abs(q1-q0)
psubusb mm7, mm4
por mm0, mm7 ; mask
movq mm5, mm2 ; q1
psubusb mm5, mm1 ; q1-=p1
psubusb mm1, mm2 ; p1-=q1
por mm5, mm1 ; abs(p1-q1)
pand mm5, [GLOBAL(tfe)] ; set lsb of each byte to zero
psrlw mm5, 1 ; abs(p1-q1)/2
mov rdx, arg(2) ;blimit ;
movq mm4, [rdx] ;blimit
movq mm1, mm3 ; mm1=mm3=p0
movq mm7, mm6 ; mm7=mm6=q0
psubusb mm1, mm7 ; p0-q0
psubusb mm7, mm3 ; q0-p0
por mm1, mm7 ; abs(q0-p0)
paddusb mm1, mm1 ; abs(q0-p0)*2
paddusb mm1, mm5 ; abs (p0 - q0) *2 + abs(p1-q1)/2
psubusb mm1, mm4 ; abs (p0 - q0) *2 + abs(p1-q1)/2 > blimit
por mm1, mm0; ; mask
pxor mm0, mm0
pcmpeqb mm1, mm0
; calculate high edge variance
mov rdx, arg(4) ;thresh ; get thresh
movq mm7, [rdx]
;
movq mm4, t0 ; get abs (q1 - q0)
psubusb mm4, mm7
movq mm3, t1 ; get abs (p1 - p0)
psubusb mm3, mm7
por mm4, mm3 ; abs(q1 - q0) > thresh || abs(p1 - p0) > thresh
pcmpeqb mm4, mm0
pcmpeqb mm0, mm0
pxor mm4, mm0
; start work on filters
lea rdx, srct
movq mm2, [rdx] ; p1
movq mm7, [rdx+24] ; q1
movq mm6, [rdx+8] ; p0
movq mm0, [rdx+16] ; q0
pxor mm2, [GLOBAL(t80)] ; p1 offset to convert to signed values
pxor mm7, [GLOBAL(t80)] ; q1 offset to convert to signed values
psubsb mm2, mm7 ; p1 - q1
pand mm2, mm4 ; high var mask (hvm)(p1 - q1)
pxor mm6, [GLOBAL(t80)] ; offset to convert to signed values
pxor mm0, [GLOBAL(t80)] ; offset to convert to signed values
movq mm3, mm0 ; q0
psubsb mm0, mm6 ; q0 - p0
paddsb mm2, mm0 ; 1 * (q0 - p0) + hvm(p1 - q1)
paddsb mm2, mm0 ; 2 * (q0 - p0) + hvm(p1 - q1)
paddsb mm2, mm0 ; 3 * (q0 - p0) + hvm(p1 - q1)
pand mm1, mm2 ; mask filter values we don't care about
movq mm2, mm1
paddsb mm1, [GLOBAL(t4)] ; 3* (q0 - p0) + hvm(p1 - q1) + 4
paddsb mm2, [GLOBAL(t3)] ; 3* (q0 - p0) + hvm(p1 - q1) + 3
pxor mm0, mm0 ;
pxor mm5, mm5
punpcklbw mm0, mm2 ;
punpckhbw mm5, mm2 ;
psraw mm0, 11 ;
psraw mm5, 11
packsswb mm0, mm5
movq mm2, mm0 ; (3* (q0 - p0) + hvm(p1 - q1) + 3) >> 3;
pxor mm0, mm0 ; 0
movq mm5, mm1 ; abcdefgh
punpcklbw mm0, mm1 ; e0f0g0h0
psraw mm0, 11 ; sign extended shift right by 3
pxor mm1, mm1 ; 0
punpckhbw mm1, mm5 ; a0b0c0d0
psraw mm1, 11 ; sign extended shift right by 3
movq mm5, mm0 ; save results
packsswb mm0, mm1 ; (3* (q0 - p0) + hvm(p1 - q1) + 4) >>3
paddsw mm5, [GLOBAL(ones)]
paddsw mm1, [GLOBAL(ones)]
psraw mm5, 1 ; partial shifted one more time for 2nd tap
psraw mm1, 1 ; partial shifted one more time for 2nd tap
packsswb mm5, mm1 ; (3* (q0 - p0) + hvm(p1 - q1) + 4) >>4
pandn mm4, mm5 ; high edge variance additive
paddsb mm6, mm2 ; p0+= p0 add
pxor mm6, [GLOBAL(t80)] ; unoffset
; mm6=p0 ;
movq mm1, [rdx] ; p1
pxor mm1, [GLOBAL(t80)] ; reoffset
paddsb mm1, mm4 ; p1+= p1 add
pxor mm1, [GLOBAL(t80)] ; unoffset
; mm6 = p0 mm1 = p1
psubsb mm3, mm0 ; q0-= q0 add
pxor mm3, [GLOBAL(t80)] ; unoffset
; mm3 = q0
psubsb mm7, mm4 ; q1-= q1 add
pxor mm7, [GLOBAL(t80)] ; unoffset
; mm7 = q1
; transpose and write back
; mm1 = 72 62 52 42 32 22 12 02
; mm6 = 73 63 53 43 33 23 13 03
; mm3 = 74 64 54 44 34 24 14 04
; mm7 = 75 65 55 45 35 25 15 05
movq mm2, mm1 ; 72 62 52 42 32 22 12 02
punpcklbw mm2, mm6 ; 33 32 23 22 13 12 03 02
movq mm4, mm3 ; 74 64 54 44 34 24 14 04
punpckhbw mm1, mm6 ; 73 72 63 62 53 52 43 42
punpcklbw mm4, mm7 ; 35 34 25 24 15 14 05 04
punpckhbw mm3, mm7 ; 75 74 65 64 55 54 45 44
movq mm6, mm2 ; 33 32 23 22 13 12 03 02
punpcklwd mm2, mm4 ; 15 14 13 12 05 04 03 02
punpckhwd mm6, mm4 ; 35 34 33 32 25 24 23 22
movq mm5, mm1 ; 73 72 63 62 53 52 43 42
punpcklwd mm1, mm3 ; 55 54 53 52 45 44 43 42
punpckhwd mm5, mm3 ; 75 74 73 72 65 64 63 62
; mm2 = 15 14 13 12 05 04 03 02
; mm6 = 35 34 33 32 25 24 23 22
; mm5 = 55 54 53 52 45 44 43 42
; mm1 = 75 74 73 72 65 64 63 62
movd [rsi+rax*4+2], mm2
psrlq mm2, 32
movd [rdi+rax*4+2], mm2
movd [rsi+rax*2+2], mm6
psrlq mm6, 32
movd [rsi+rax+2],mm6
movd [rsi+2], mm1
psrlq mm1, 32
movd [rdi+2], mm1
neg rax
movd [rdi+rax+2],mm5
psrlq mm5, 32
movd [rdi+rax*2+2], mm5
lea rsi, [rsi+rax*8]
dec rcx
jnz .next8_v
add rsp, 64
pop rsp
; begin epilog
pop rdi
pop rsi
RESTORE_GOT
UNSHADOW_ARGS
pop rbp
ret
SECTION_RODATA
align 16
tfe:
times 8 db 0xfe
align 16
t80:
times 8 db 0x80
align 16
t1s:
times 8 db 0x01
align 16
t3:
times 8 db 0x03
align 16
t4:
times 8 db 0x04
align 16
ones:
times 4 dw 0x0001
align 16
s27:
times 4 dw 0x1b00
align 16
s18:
times 4 dw 0x1200
align 16
s9:
times 4 dw 0x0900
align 16
s63:
times 4 dw 0x003f
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