2014-11-11 18:43:42 +00:00
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;*****************************************************************************
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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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2014-11-15 03:07:08 +00:00
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;* Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at>
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2014-11-11 18:43:42 +00:00
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;*
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;* This file is part of Libav.
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;*
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;* Libav 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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;* Libav 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 Libav; 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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SECTION .text
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%macro LOWPASS_LINE 0
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cglobal lowpass_line, 5, 5, 7
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add r0, r1
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add r2, r1
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add r3, r1
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add r4, r1
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neg r1
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2014-11-15 03:07:08 +00:00
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pcmpeqb m6, m6
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2014-11-11 18:43:42 +00:00
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.loop
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2014-11-15 03:07:08 +00:00
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mova m0, [r3+r1]
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mova m1, [r3+r1+mmsize]
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pavgb m0, [r4+r1]
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pavgb m1, [r4+r1+mmsize]
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pxor m0, m6
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pxor m1, m6
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pxor m2, m6, [r2+r1]
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pxor m3, m6, [r2+r1+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 [r0+r1], m0
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mova [r0+r1+mmsize], m1
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2014-11-11 18:43:42 +00:00
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2014-11-15 03:07:08 +00:00
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add r1, 2*mmsize
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2014-11-11 18:43:42 +00:00
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jl .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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