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ffmpeg-4.2.2/libavutil/x86/imgutils.asm 1.67 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  ;*****************************************************************************
  ;* Copyright 2016 Anton Khirnov
  ;*
  ;* This file is part of FFmpeg.
  ;*
  ;* FFmpeg is free software; you can redistribute it and/or
  ;* modify it under the terms of the GNU Lesser General Public
  ;* License as published by the Free Software Foundation; either
  ;* version 2.1 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
  ;* Lesser General Public License for more details.
  ;*
  ;* You should have received a copy of the GNU Lesser 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 .text
  
  INIT_XMM sse4
  cglobal image_copy_plane_uc_from, 6, 7, 4, dst, dst_linesize, src, src_linesize, bw, height, rowpos
      add dstq, bwq
      add srcq, bwq
      neg bwq
  
  .row_start:
      mov rowposq, bwq
  
  .loop:
      movntdqa m0, [srcq + rowposq + 0 * mmsize]
      movntdqa m1, [srcq + rowposq + 1 * mmsize]
      movntdqa m2, [srcq + rowposq + 2 * mmsize]
      movntdqa m3, [srcq + rowposq + 3 * mmsize]
  
      mova [dstq + rowposq + 0 * mmsize], m0
      mova [dstq + rowposq + 1 * mmsize], m1
      mova [dstq + rowposq + 2 * mmsize], m2
      mova [dstq + rowposq + 3 * mmsize], m3
  
      add rowposq, 4 * mmsize
      jnz .loop
  
      add srcq, src_linesizeq
      add dstq, dst_linesizeq
      dec heightd
      jnz .row_start
  
      RET