ref: a913cc853e517c2a5a0f79cc72cd5df590d82317
dir: /processing/src/asm/sad.asm/
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;*
;*
;* pixel_sse2.asm
;*
;* Abstract
;* WelsSampleSad8x8_sse21
;*
;* History
;* 8/5/2009 Created
;*
;*
;*************************************************************************/
%include "asm_inc.asm"
BITS 32
;***********************************************************************
; Macros and other preprocessor constants
;***********************************************************************
%macro SAD_8x4 0
movq xmm0, [eax]
movq xmm1, [eax+ebx]
lea eax, [eax+2*ebx]
movhps xmm0, [eax]
movhps xmm1, [eax+ebx]
movq xmm2, [ecx]
movq xmm3, [ecx+edx]
lea ecx, [ecx+2*edx]
movhps xmm2, [ecx]
movhps xmm3, [ecx+edx]
psadbw xmm0, xmm2
psadbw xmm1, xmm3
paddw xmm6, xmm0
paddw xmm6, xmm1
%endmacro
%macro CACHE_SPLIT_CHECK 3 ; address, width, cacheline
and %1, 0x1f|(%3>>1)
cmp %1, (32-%2)|(%3>>1)
%endmacro
%macro SSE2_GetSad8x4 0
movq xmm0, [eax]
movq xmm1, [eax+ebx]
lea eax, [eax+2*ebx]
movhps xmm0, [eax]
movhps xmm1, [eax+ebx]
movq xmm2, [ecx]
movq xmm3, [ecx+edx]
lea ecx, [ecx+2*edx]
movhps xmm2, [ecx]
movhps xmm3, [ecx+edx]
psadbw xmm0, xmm2
psadbw xmm1, xmm3
paddw xmm6, xmm0
paddw xmm6, xmm1
%endmacro
;***********************************************************************
; Code
;***********************************************************************
SECTION .text
WELS_EXTERN WelsSampleSad8x8_sse21
WelsSampleSad8x8_sse21:
mov ecx, [esp+12]
mov edx, ecx
CACHE_SPLIT_CHECK edx, 8, 64
jle near .pixel_sad_8x8_nsplit
push ebx
push edi
mov eax, [esp+12]
mov ebx, [esp+16]
pxor xmm7, xmm7
mov edi, ecx
and edi, 0x07
sub ecx, edi
mov edx, 8
sub edx, edi
shl edi, 3
shl edx, 3
movd xmm5, edi
movd xmm6, edx
mov edi, 8
add edi, ecx
mov edx, [esp+24]
movq xmm0, [eax]
movhps xmm0, [eax+ebx]
movq xmm1, [ecx]
movq xmm2, [edi]
movhps xmm1, [ecx+edx]
movhps xmm2, [edi+edx]
psrlq xmm1, xmm5
psllq xmm2, xmm6
por xmm1, xmm2
psadbw xmm0, xmm1
paddw xmm7, xmm0
lea eax, [eax+2*ebx]
lea ecx, [ecx+2*edx]
lea edi, [edi+2*edx]
movq xmm0, [eax]
movhps xmm0, [eax+ebx]
movq xmm1, [ecx]
movq xmm2, [edi]
movhps xmm1, [ecx+edx]
movhps xmm2, [edi+edx]
psrlq xmm1, xmm5
psllq xmm2, xmm6
por xmm1, xmm2
psadbw xmm0, xmm1
paddw xmm7, xmm0
lea eax, [eax+2*ebx]
lea ecx, [ecx+2*edx]
lea edi, [edi+2*edx]
movq xmm0, [eax]
movhps xmm0, [eax+ebx]
movq xmm1, [ecx]
movq xmm2, [edi]
movhps xmm1, [ecx+edx]
movhps xmm2, [edi+edx]
psrlq xmm1, xmm5
psllq xmm2, xmm6
por xmm1, xmm2
psadbw xmm0, xmm1
paddw xmm7, xmm0
lea eax, [eax+2*ebx]
lea ecx, [ecx+2*edx]
lea edi, [edi+2*edx]
movq xmm0, [eax]
movhps xmm0, [eax+ebx]
movq xmm1, [ecx]
movq xmm2, [edi]
movhps xmm1, [ecx+edx]
movhps xmm2, [edi+edx]
psrlq xmm1, xmm5
psllq xmm2, xmm6
por xmm1, xmm2
psadbw xmm0, xmm1
paddw xmm7, xmm0
movhlps xmm0, xmm7
paddw xmm0, xmm7
movd eax, xmm0
pop edi
jmp .return
.pixel_sad_8x8_nsplit:
push ebx
mov eax, [esp+8]
mov ebx, [esp+12]
mov edx, [esp+20]
pxor xmm6, xmm6
SSE2_GetSad8x4
lea eax, [eax+2*ebx]
lea ecx, [ecx+2*edx]
SSE2_GetSad8x4
movhlps xmm0, xmm6
paddw xmm0, xmm6
movd eax, xmm0
.return:
pop ebx
ret