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;******************************************************************************
;* Pixel utilities SIMD
;*
;* Copyright (C) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
;* Copyright (C) 2014 Clément Bœsch <u pkh me>
;*
;* This file is part of FFmpeg.
;*
;* FFmpeg is free software; you can redistribute it and/or
;* modify it under the terms of the GNU Lesser General Public
;* License as published by the Free Software Foundation; either
;* version 2.1 of the License, or (at your option) any later version.
;*
;* FFmpeg is distributed in the hope that it will be useful,
;* but WITHOUT ANY WARRANTY; without even the implied warranty of
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;* Lesser General Public License for more details.
;*
;* You should have received a copy of the GNU Lesser General Public
;* License along with FFmpeg; if not, write to the Free Software
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************
%include "x86util.asm"
SECTION_TEXT
;-------------------------------------------------------------------------------
; int ff_pixelutils_sad_8x8_mmx(const uint8_t *src1, ptrdiff_t stride1,
; const uint8_t *src2, ptrdiff_t stride2);
;-------------------------------------------------------------------------------
INIT_MMX mmx
cglobal pixelutils_sad_8x8, 4,4,0, src1, stride1, src2, stride2
pxor m7, m7
pxor m6, m6
%rep 4
mova m0, [src1q]
mova m2, [src1q + stride1q]
mova m1, [src2q]
mova m3, [src2q + stride2q]
psubusb m4, m0, m1
psubusb m5, m2, m3
psubusb m1, m0
psubusb m3, m2
por m1, m4
por m3, m5
punpcklbw m0, m1, m7
punpcklbw m2, m3, m7
punpckhbw m1, m7
punpckhbw m3, m7
paddw m0, m1
paddw m2, m3
paddw m0, m2
paddw m6, m0
lea src1q, [src1q + 2*stride1q]
lea src2q, [src2q + 2*stride2q]
%endrep
psrlq m0, m6, 32
paddw m6, m0
psrlq m0, m6, 16
paddw m6, m0
movd eax, m6
movzx eax, ax
RET
;-------------------------------------------------------------------------------
; int ff_pixelutils_sad_8x8_mmxext(const uint8_t *src1, ptrdiff_t stride1,
; const uint8_t *src2, ptrdiff_t stride2);
;-------------------------------------------------------------------------------
INIT_MMX mmxext
cglobal pixelutils_sad_8x8, 4,4,0, src1, stride1, src2, stride2
pxor m2, m2
%rep 4
mova m0, [src1q]
mova m1, [src1q + stride1q]
psadbw m0, [src2q]
psadbw m1, [src2q + stride2q]
paddw m2, m0
paddw m2, m1
lea src1q, [src1q + 2*stride1q]
lea src2q, [src2q + 2*stride2q]
%endrep
movd eax, m2
RET
;-------------------------------------------------------------------------------
; int ff_pixelutils_sad_16x16_mmxext(const uint8_t *src1, ptrdiff_t stride1,
; const uint8_t *src2, ptrdiff_t stride2);
;-------------------------------------------------------------------------------
INIT_MMX mmxext
cglobal pixelutils_sad_16x16, 4,4,0, src1, stride1, src2, stride2
pxor m2, m2
%rep 16
mova m0, [src1q]
mova m1, [src1q + 8]
psadbw m0, [src2q]
psadbw m1, [src2q + 8]
paddw m2, m0
paddw m2, m1
add src1q, stride1q
add src2q, stride2q
%endrep
movd eax, m2
RET
;-------------------------------------------------------------------------------
; int ff_pixelutils_sad_16x16_sse(const uint8_t *src1, ptrdiff_t stride1,
; const uint8_t *src2, ptrdiff_t stride2);
;-------------------------------------------------------------------------------
INIT_XMM sse2
cglobal pixelutils_sad_16x16, 4,4,5, src1, stride1, src2, stride2
pxor m4, m4
%rep 8
movu m0, [src1q]
movu m1, [src1q + stride1q]
movu m2, [src2q]
movu m3, [src2q + stride2q]
psadbw m0, m2
psadbw m1, m3
paddw m4, m0
paddw m4, m1
lea src1q, [src1q + 2*stride1q]
lea src2q, [src2q + 2*stride2q]
%endrep
movhlps m0, m4
paddw m4, m0
movd eax, m4
RET
;-------------------------------------------------------------------------------
; int ff_pixelutils_sad_[au]_16x16_sse(const uint8_t *src1, ptrdiff_t stride1,
; const uint8_t *src2, ptrdiff_t stride2);
;-------------------------------------------------------------------------------
%macro SAD_XMM_16x16 1
INIT_XMM sse2
cglobal pixelutils_sad_%1_16x16, 4,4,3, src1, stride1, src2, stride2
pxor m2, m2
%rep 8
mov%1 m0, [src2q]
mov%1 m1, [src2q + stride2q]
psadbw m0, [src1q]
psadbw m1, [src1q + stride1q]
paddw m2, m0
paddw m2, m1
lea src1q, [src1q + 2*stride1q]
lea src2q, [src2q + 2*stride2q]
%endrep
movhlps m0, m2
paddw m2, m0
movd eax, m2
RET
%endmacro
SAD_XMM_16x16 a
SAD_XMM_16x16 u
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