mirror of https://git.ffmpeg.org/ffmpeg.git
93 lines
2.7 KiB
NASM
93 lines
2.7 KiB
NASM
;*****************************************************************************
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;* x86-optimized functions for threshold filter
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;*
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;* Copyright (C) 2017 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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SECTION_RODATA
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pb_128: times 16 db 128
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pb_128_0 : times 8 db 0, 128
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SECTION .text
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;%1 depth (8 or 16) ; %2 b or w ; %3 constant
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%macro THRESHOLD 3
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%if ARCH_X86_64
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cglobal threshold%1, 10, 13, 5, in, threshold, min, max, out, ilinesize, tlinesize, flinesize, slinesize, olinesize, w, h, x
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mov wd, dword wm
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mov hd, dword hm
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%else
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cglobal threshold%1, 5, 7, 5, in, threshold, min, max, out, w, x
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mov wd, r10m
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%define ilinesizeq r5mp
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%define tlinesizeq r6mp
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%define flinesizeq r7mp
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%define slinesizeq r8mp
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%define olinesizeq r9mp
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%define hd r11mp
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%endif
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VBROADCASTI128 m4, [%3]
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%if %1 == 16
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add wq, wq ; w *= 2 (16 bits instead of 8)
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%endif
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add inq, wq
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add thresholdq, wq
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add minq, wq
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add maxq, wq
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add outq, wq
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neg wq
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.nextrow:
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mov xq, wq
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.loop:
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movu m1, [inq + xq]
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movu m0, [thresholdq + xq]
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movu m2, [minq + xq]
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movu m3, [maxq + xq]
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pxor m0, m4
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pxor m1, m4
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pcmpgt%2 m0, m1
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PBLENDVB m3, m2, m0
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movu [outq + xq], m3
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add xq, mmsize
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jl .loop
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add inq, ilinesizeq
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add thresholdq, tlinesizeq
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add minq, flinesizeq
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add maxq, slinesizeq
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add outq, olinesizeq
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sub hd, 1
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jg .nextrow
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RET
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%endmacro
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INIT_XMM sse4
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THRESHOLD 8, b, pb_128
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THRESHOLD 16, w, pb_128_0
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%if HAVE_AVX2_EXTERNAL
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INIT_YMM avx2
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THRESHOLD 8, b, pb_128
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THRESHOLD 16, w, pb_128_0
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%endif
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