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section .rdata, rdata, align=16
xfefefefefefefefe dq 0fefefefefefefefeh
xe0e0e0e0e0e0e0e0 dq 0e0e0e0e0e0e0e0e0h
x0002000200020002 dq 00002000200020002h
section .text
;==============================================================================
global _vdasm_horiz_expand2x_coaligned_ISSE
_vdasm_horiz_expand2x_coaligned_ISSE:
mov ecx, [esp+8]
mov edx, [esp+4]
mov eax, [esp+12]
.xloop:
movq mm0, [ecx]
movq mm1, mm0
pavgb mm0, [ecx+1]
movq mm2, mm1
punpcklbw mm1, mm0
punpckhbw mm2, mm0
movq [edx], mm1
movq [edx+8], mm2
add edx, 16
add ecx, 8
sub eax, 16
jne .xloop
ret
;==============================================================================
global _vdasm_vert_average_13_ISSE
_vdasm_vert_average_13_ISSE:
push ebx
mov ebx, [esp+12+4]
mov ecx, [esp+8+4]
mov edx, [esp+4+4]
mov eax, [esp+16+4]
add ebx, eax
add ecx, eax
add edx, eax
neg eax
pcmpeqb mm7, mm7
.xloop:
movq mm0, [ebx+eax]
movq mm1, [ecx+eax]
movq mm2, mm0
movq mm3, [ebx+eax+8]
pxor mm0, mm7
pxor mm1, mm7
movq mm4, [ecx+eax+8]
movq mm5, mm3
pxor mm3, mm7
pxor mm4, mm7
pavgb mm0, mm1
pavgb mm3, mm4
pxor mm0, mm7
pxor mm3, mm7
pavgb mm0, mm2
movq [edx+eax], mm0
pavgb mm3, mm5
movq [edx+eax+8], mm3
add eax, 16
jne .xloop
pop ebx
ret
;==============================================================================
global _vdasm_vert_average_17_ISSE
_vdasm_vert_average_17_ISSE:
push ebx
mov ebx, [esp+12+4]
mov ecx, [esp+8+4]
mov edx, [esp+4+4]
mov eax, [esp+16+4]
add ebx, eax
add ecx, eax
add edx, eax
neg eax
;r = avgup(avgdown(avgdown(a, b), a), a)
; = pavgb(~pavgb(pavgb(~a, ~b), ~a), a)
pcmpeqb mm7, mm7
.xloop:
movq mm0, [ecx+eax]
movq mm1, [ebx+eax]
movq mm2, mm0
pxor mm0, mm7 ;~a
pxor mm1, mm7 ;~b
pavgb mm1, mm0 ;pavgb(~a, ~b) = ~avgdown(a, b)
pavgb mm1, mm0 ;pavgb(~avgdown(a, b), ~a) = ~avgdown(avgdown(a, b), a)
pxor mm1, mm7 ;avgdown(avgdown(a, b), a)
pavgb mm1, mm2 ;pavgb(avgdown(avgdown(a, b), a), a) = round((7*a + b)/8)
movq [edx+eax], mm1
add eax, 8
jne .xloop
pop ebx
ret
;==============================================================================
global _vdasm_vert_average_35_ISSE
_vdasm_vert_average_35_ISSE:
push ebx
mov ebx, [esp+12+4]
mov ecx, [esp+8+4]
mov edx, [esp+4+4]
mov eax, [esp+16+4]
add ebx, eax
add ecx, eax
add edx, eax
neg eax
;r = avgup(avgdown(avgdown(a, b), b), a)
; = pavgb(~pavgb(pavgb(~a, ~b), ~b), a)
pcmpeqb mm7, mm7
.xloop:
movq mm0, [ecx+eax]
movq mm1, [ebx+eax]
movq mm2, mm0
pxor mm0, mm7 ;~a
pxor mm1, mm7 ;~b
pavgb mm0, mm1 ;avgup(~a, ~b) = ~avgdown(a, b)
pavgb mm0, mm1 ;avgup(~avgdown(a, b), ~b) = ~avgdown(avgdown(a, b), b)
pxor mm0, mm7 ;avgdown(avgdown(a, b), b)
pavgb mm0, mm2 ;avgup(avgdown(avgdown(a, b), b), a) = round((5*a + 3*b) / 8)
movq [edx+eax], mm0
add eax, 8
jne .xloop
pop ebx
ret
;==============================================================================
global _vdasm_horiz_expand4x_coaligned_MMX
_vdasm_horiz_expand4x_coaligned_MMX:
mov edx, [esp+4]
mov ecx, [esp+8]
mov eax, [esp+12]
movq mm6, qword [x0002000200020002]
pxor mm7, mm7
.xloop:
movd mm0, [ecx]
movd mm1, [ecx+1]
add ecx, 4
punpcklbw mm0, mm7
punpcklbw mm1, mm7
psubw mm1, mm0 ;x1
movq mm2, mm1
paddw mm1, mm6 ;x1 + 2
movq mm3, mm1
paddw mm2, mm2 ;x2
paddw mm3, mm2 ;x3 + 2
paddw mm2, mm6 ;x2 + 2
psraw mm1, 2 ;x1/4
psraw mm2, 2 ;x2/4
psraw mm3, 2 ;x3/4
paddw mm1, mm0
paddw mm2, mm0
paddw mm3, mm0
movd mm0, [ecx-4]
packuswb mm1, mm1
packuswb mm2, mm2
packuswb mm3, mm3
punpcklbw mm0, mm1
punpcklbw mm2, mm3
movq mm1, mm0
punpcklwd mm0, mm2
punpckhwd mm1, mm2
movq [edx], mm0
movq [edx+8], mm1
add edx, 16
sub eax, 1
jne .xloop
ret
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