mirror of https://git.ffmpeg.org/ffmpeg.git
74 lines
2.2 KiB
NASM
74 lines
2.2 KiB
NASM
;*****************************************************************************
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;* x86-optimized functions for maskedmerge filter
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;*
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;* Copyright (C) 2015 Paul B Mahol
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;*****************************************************************************
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%include "libavutil/x86/x86util.asm"
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%if ARCH_X86_64
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SECTION_RODATA
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pw_128: times 8 dw 128
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pw_256: times 8 dw 256
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SECTION .text
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INIT_XMM sse2
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cglobal maskedmerge8, 10, 11, 7, 0, bsrc, osrc, msrc, dst, blinesize, olinesize, mlinesize, dlinesize, w, h
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mova m4, [pw_256]
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mova m5, [pw_128]
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pxor m6, m6
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add bsrcq, wq
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add osrcq, wq
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add msrcq, wq
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add dstq, wq
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neg wq
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.nextrow:
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mov r10q, wq
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%define x r10q
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.loop:
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movh m0, [bsrcq + x]
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movh m1, [osrcq + x]
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movh m3, [msrcq + x]
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mova m2, m4
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punpcklbw m0, m6
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punpcklbw m1, m6
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punpcklbw m3, m6
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psubw m2, m3
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pmullw m2, m0
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pmullw m1, m3
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paddw m1, m2
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paddw m1, m5
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psrlw m1, 8
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packuswb m1, m1
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movh [dstq + x], m1
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add r10q, mmsize / 2
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jl .loop
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add bsrcq, blinesizeq
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add osrcq, olinesizeq
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add msrcq, mlinesizeq
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add dstq, dlinesizeq
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sub hd, 1
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jg .nextrow
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REP_RET
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%endif
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