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;*****************************************************************************
;* x86-optimized functions for maskedclamp filter
;*
;* Copyright (c) 2019 Paul B Mahol
;*
;* 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 "libavutil/x86/x86util.asm"
SECTION .text
;------------------------------------------------------------------------------
; void ff_maskedclamp(const uint8_t *src, uint8_t *dst,
; const uint8_t *darksrc,
; const uint8_t *brightsrc,
; int w, int undershoot, int overshoot)
;------------------------------------------------------------------------------
INIT_XMM sse2
cglobal maskedclamp8, 5,5,5, src, dst, dark, bright, w, undershoot, overshoot
movsxdifnidn wq, wd
add srcq, wq
add darkq, wq
add brightq, wq
add dstq, wq
neg wq
movd m3, r5m
punpcklbw m3, m3
SPLATW m3, m3
movd m4, r6m
punpcklbw m4, m4
SPLATW m4, m4
.loop:
movu m0, [srcq + wq]
movu m1, [darkq + wq]
movu m2, [brightq + wq]
psubusb m1, m3
paddusb m2, m4
CLIPUB m0, m1, m2
mova [dstq + wq], m0
add wq, mmsize
jl .loop
RET
INIT_XMM sse4
cglobal maskedclamp16, 5,5,5, src, dst, dark, bright, w, undershoot, overshoot
shl wd, 1
add srcq, wq
add darkq, wq
add brightq, wq
add dstq, wq
neg wq
movd m3, r5m
SPLATW m3, m3
movd m4, r6m
SPLATW m4, m4
.loop:
movu m0, [srcq + wq]
movu m1, [darkq + wq]
movu m2, [brightq + wq]
psubusw m1, m3
paddusw m2, m4
pmaxuw m0, m1
pminuw m0, m2
mova [dstq + wq], m0
add wq, mmsize
jl .loop
RET
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