ffmpeg/libavfilter/x86/vf_interlace.asm

   1 ;*****************************************************************************
   2 ;* x86-optimized functions for interlace filter
   3 ;*
   4 ;* Copyright (C) 2014 Kieran Kunhya <kierank@obe.tv>
   5 ;* Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at>
   6 ;*
   7 ;* This file is part of FFmpeg.
   8 ;*
   9 ;* FFmpeg is free software; you can redistribute it and/or modify
  10 ;* it under the terms of the GNU General Public License as published by
  11 ;* the Free Software Foundation; either version 2 of the License, or
  12 ;* (at your option) any later version.
  13 ;*
  14 ;* FFmpeg is distributed in the hope that it will be useful,
  15 ;* but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;* GNU General Public License for more details.
  18 ;*
  19 ;* You should have received a copy of the GNU General Public License along
  20 ;* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
  21 ;* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  22 ;******************************************************************************
  23
  24 %include "libavutil/x86/x86util.asm"
  25
  26 SECTION_RODATA
  27
  28 SECTION .text
  29
  30 %macro LOWPASS_LINE 0
  31 cglobal lowpass_line, 5, 5, 7
  32     add r0, r1
  33     add r2, r1
  34     add r3, r1
  35     add r4, r1
  36     neg r1
  37
  38     pcmpeqb m6, m6
  39
  40 .loop
  41     mova m0, [r3+r1]
  42     mova m1, [r3+r1+mmsize]
  43     pavgb m0, [r4+r1]
  44     pavgb m1, [r4+r1+mmsize]
  45     pxor m0, m6
  46     pxor m1, m6
  47     pxor m2, m6, [r2+r1]
  48     pxor m3, m6, [r2+r1+mmsize]
  49     pavgb m0, m2
  50     pavgb m1, m3
  51     pxor m0, m6
  52     pxor m1, m6
  53     mova [r0+r1], m0
  54     mova [r0+r1+mmsize], m1
  55
  56     add r1, 2*mmsize
  57     jl .loop
  58 REP_RET
  59 %endmacro
  60
  61 INIT_XMM sse2
  62 LOWPASS_LINE
  63
  64 INIT_XMM avx
  65 LOWPASS_LINE