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;*****************************************************************************
;* SIMD-optimized MPEG encoding functions
;*****************************************************************************
;* Copyright (c) 2000, 2001 Fabrice Bellard
;* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
;*
;* This file is part of Libav.
;*
;* Libav 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.
;*
;* Libav 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 Libav; if not, write to the Free Software
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;*****************************************************************************
%include "libavutil/x86/x86util.asm"
SECTION .text
INIT_MMX mmx
; int ff_pix_sum16_mmx(uint8_t *pix, int line_size)
cglobal pix_sum16, 2, 3
movsxdifnidn r1, r1d
mov r2, r1
neg r2
shl r2, 4
sub r0, r2
pxor m7, m7
pxor m6, m6
.loop:
mova m0, [r0+r2+0]
mova m1, [r0+r2+0]
mova m2, [r0+r2+8]
mova m3, [r0+r2+8]
punpcklbw m0, m7
punpckhbw m1, m7
punpcklbw m2, m7
punpckhbw m3, m7
paddw m1, m0
paddw m3, m2
paddw m3, m1
paddw m6, m3
add r2, r1
js .loop
mova m5, m6
psrlq m6, 32
paddw m6, m5
mova m5, m6
psrlq m6, 16
paddw m6, m5
movd eax, m6
and eax, 0xffff
RET
INIT_MMX mmx
; int ff_pix_norm1_mmx(uint8_t *pix, int line_size)
cglobal pix_norm1, 2, 4
movsxdifnidn r1, r1d
mov r2, 16
pxor m0, m0
pxor m7, m7
.loop:
mova m2, [r0+0]
mova m3, [r0+8]
mova m1, m2
punpckhbw m1, m0
punpcklbw m2, m0
mova m4, m3
punpckhbw m3, m0
punpcklbw m4, m0
pmaddwd m1, m1
pmaddwd m2, m2
pmaddwd m3, m3
pmaddwd m4, m4
paddd m2, m1
paddd m4, m3
paddd m7, m2
add r0, r1
paddd m7, m4
dec r2
jne .loop
mova m1, m7
psrlq m7, 32
paddd m1, m7
movd eax, m1
RET
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