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;*****************************************************************************
;* x86-optimized functions for interlace filter
;*
;* Copyright (C) 2014 Kieran Kunhya <[email protected]>
;* Copyright (c) 2014 Michael Niedermayer <[email protected]>
;* Copyright (c) 2017 Thomas Mundt <[email protected]>
;*
;* This file is part of FFmpeg.
;*
;* FFmpeg is free software; you can redistribute it and/or modify
;* it under the terms of the GNU General Public License as published by
;* the Free Software Foundation; either version 2 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 General Public License for more details.
;*
;* You should have received a copy of the GNU 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_RODATA
pw_4: times 8 dw 4
SECTION .text
%macro LOWPASS_LINE 0
cglobal lowpass_line, 5, 5, 7, dst, h, src, mref, pref
add dstq, hq
add srcq, hq
add mrefq, srcq
add prefq, srcq
neg hq
pcmpeqb m6, m6
.loop:
mova m0, [mrefq+hq]
mova m1, [mrefq+hq+mmsize]
pavgb m0, [prefq+hq]
pavgb m1, [prefq+hq+mmsize]
pxor m0, m6
pxor m1, m6
pxor m2, m6, [srcq+hq]
pxor m3, m6, [srcq+hq+mmsize]
pavgb m0, m2
pavgb m1, m3
pxor m0, m6
pxor m1, m6
mova [dstq+hq], m0
mova [dstq+hq+mmsize], m1
add hq, 2*mmsize
jl .loop
REP_RET
%endmacro
%macro LOWPASS_LINE_COMPLEX 0
cglobal lowpass_line_complex, 5, 5, 8, dst, h, src, mref, pref
pxor m7, m7
.loop:
mova m0, [srcq+mrefq]
mova m2, [srcq+prefq]
mova m1, m0
mova m3, m2
punpcklbw m0, m7
punpcklbw m2, m7
punpckhbw m1, m7
punpckhbw m3, m7
paddw m0, m2
paddw m1, m3
mova m6, m0
mova m5, m1
mova m2, [srcq]
mova m3, m2
punpcklbw m2, m7
punpckhbw m3, m7
paddw m0, m2
paddw m1, m3
psllw m2, 1
psllw m3, 1
paddw m0, m2
paddw m1, m3
psllw m0, 1
psllw m1, 1
pcmpgtw m6, m2
pcmpgtw m5, m3
packsswb m6, m5
mova m2, [srcq+mrefq*2]
mova m4, [srcq+prefq*2]
mova m3, m2
mova m5, m4
punpcklbw m2, m7
punpcklbw m4, m7
punpckhbw m3, m7
punpckhbw m5, m7
paddw m2, m4
paddw m3, m5
paddw m0, [pw_4]
paddw m1, [pw_4]
psubusw m0, m2
psubusw m1, m3
psrlw m0, 3
psrlw m1, 3
packuswb m0, m1
mova m1, m0
pmaxub m0, [srcq]
pminub m1, [srcq]
pand m0, m6
pandn m6, m1
por m0, m6
mova [dstq], m0
add dstq, mmsize
add srcq, mmsize
sub hd, mmsize
jg .loop
REP_RET
%endmacro
INIT_XMM sse2
LOWPASS_LINE
INIT_XMM avx
LOWPASS_LINE
INIT_XMM sse2
LOWPASS_LINE_COMPLEX
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