mirror of https://git.ffmpeg.org/ffmpeg.git
126 lines
2.8 KiB
NASM
126 lines
2.8 KiB
NASM
;*****************************************************************************
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;* x86-optimized functions for interlace filter
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;*
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;* Copyright (C) 2014 Kieran Kunhya <kierank@obe.tv>
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;* Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at>
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;* Copyright (c) 2017 Thomas Mundt <tmundt75@gmail.com>
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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 modify
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;* it under the terms of the GNU General Public License as published by
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;* the Free Software Foundation; either version 2 of the License, or
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;* (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
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;* GNU General Public License for more details.
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;*
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;* You should have received a copy of the GNU General Public License along
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;* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
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;* 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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pw_4: times 8 dw 4
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SECTION .text
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%macro LOWPASS_LINE 0
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cglobal lowpass_line, 5, 5, 7, dst, h, src, mref, pref
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add dstq, hq
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add srcq, hq
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add mrefq, srcq
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add prefq, srcq
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neg hq
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pcmpeqb m6, m6
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.loop:
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mova m0, [mrefq+hq]
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mova m1, [mrefq+hq+mmsize]
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pavgb m0, [prefq+hq]
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pavgb m1, [prefq+hq+mmsize]
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pxor m0, m6
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pxor m1, m6
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pxor m2, m6, [srcq+hq]
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pxor m3, m6, [srcq+hq+mmsize]
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pavgb m0, m2
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pavgb m1, m3
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pxor m0, m6
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pxor m1, m6
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mova [dstq+hq], m0
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mova [dstq+hq+mmsize], m1
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add hq, 2*mmsize
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jl .loop
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REP_RET
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%endmacro
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%macro LOWPASS_LINE_COMPLEX 0
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cglobal lowpass_line_complex, 5, 5, 7, dst, h, src, mref, pref
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pxor m6, m6
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.loop:
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mova m0, [srcq+mrefq]
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mova m2, [srcq+prefq]
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mova m1, m0
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mova m3, m2
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punpcklbw m0, m6
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punpcklbw m2, m6
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punpckhbw m1, m6
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punpckhbw m3, m6
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paddw m0, m2
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paddw m1, m3
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mova m2, [srcq+mrefq*2]
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mova m4, [srcq+prefq*2]
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mova m3, m2
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mova m5, m4
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punpcklbw m2, m6
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punpcklbw m4, m6
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punpckhbw m3, m6
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punpckhbw m5, m6
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paddw m2, m4
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paddw m3, m5
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mova m4, [srcq]
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mova m5, m4
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punpcklbw m4, m6
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punpckhbw m5, m6
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paddw m0, m4
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paddw m1, m5
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psllw m0, 1
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psllw m1, 1
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psllw m4, 2
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psllw m5, 2
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paddw m0, m4
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paddw m1, m5
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paddw m0, [pw_4]
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paddw m1, [pw_4]
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psubusw m0, m2
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psubusw m1, m3
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psrlw m0, 3
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psrlw m1, 3
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packuswb m0, m1
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mova [dstq], m0
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add dstq, mmsize
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add srcq, mmsize
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sub hd, mmsize
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jg .loop
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REP_RET
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%endmacro
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INIT_XMM sse2
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LOWPASS_LINE
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INIT_XMM avx
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LOWPASS_LINE
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INIT_XMM sse2
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LOWPASS_LINE_COMPLEX
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