ffmpeg/libavresample/x86/util.asm

   1 ;******************************************************************************
   2 ;* x86 utility macros for libavresample
   3 ;* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
   4 ;*
   5 ;* This file is part of FFmpeg.
   6 ;*
   7 ;* FFmpeg is free software; you can redistribute it and/or
   8 ;* modify it under the terms of the GNU Lesser General Public
   9 ;* License as published by the Free Software Foundation; either
  10 ;* version 2.1 of the License, or (at your option) any later version.
  11 ;*
  12 ;* FFmpeg is distributed in the hope that it will be useful,
  13 ;* but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 ;* Lesser General Public License for more details.
  16 ;*
  17 ;* You should have received a copy of the GNU Lesser General Public
  18 ;* License along with FFmpeg; if not, write to the Free Software
  19 ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20 ;******************************************************************************
  21
  22 %macro S16_TO_S32_SX 2 ; src/low dst, high dst
  23 %if cpuflag(sse4)
  24     pmovsxwd     m%2, m%1
  25     psrldq       m%1, 8
  26     pmovsxwd     m%1, m%1
  27     SWAP %1, %2
  28 %else
  29     mova         m%2, m%1
  30     punpckhwd    m%2, m%2
  31     punpcklwd    m%1, m%1
  32     psrad        m%2, 16
  33     psrad        m%1, 16
  34 %endif
  35 %endmacro
  36
  37 %macro DEINT2_PS 3 ; src0/even dst, src1/odd dst, temp
  38     shufps  m%3, m%1, m%2, q3131
  39     shufps       m%1, m%2, q2020
  40     SWAP %2,%3
  41 %endmacro