ffmpeg/libavcodec/x86/flacdsp.asm

   1 ;******************************************************************************
   2 ;* FLAC DSP SIMD optimizations
   3 ;*
   4 ;* Copyright (C) 2014 Loren Merritt
   5 ;*
   6 ;* This file is part of FFmpeg.
   7 ;*
   8 ;* FFmpeg is free software; you can redistribute it and/or
   9 ;* modify it under the terms of the GNU Lesser General Public
  10 ;* License as published by the Free Software Foundation; either
  11 ;* version 2.1 of the License, or (at your option) any later version.
  12 ;*
  13 ;* FFmpeg is distributed in the hope that it will be useful,
  14 ;* but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 ;* Lesser General Public License for more details.
  17 ;*
  18 ;* You should have received a copy of the GNU Lesser General Public
  19 ;* License along with FFmpeg; if not, write to the Free Software
  20 ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21 ;******************************************************************************
  22
  23 %include "libavutil/x86/x86util.asm"
  24
  25 SECTION .text
  26
  27 %macro LPC_32 1
  28 INIT_XMM %1
  29 cglobal flac_lpc_32, 5,6,5, decoded, coeffs, pred_order, qlevel, len, j
  30     sub    lend, pred_orderd
  31     jle .ret
  32     lea    decodedq, [decodedq+pred_orderq*4-8]
  33     lea    coeffsq, [coeffsq+pred_orderq*4]
  34     neg    pred_orderq
  35     movd   m4, qlevelm
  36 ALIGN 16
  37 .loop_sample:
  38     movd   m0, [decodedq+pred_orderq*4+8]
  39     add    decodedq, 8
  40     movd   m1, [coeffsq+pred_orderq*4]
  41     pxor   m2, m2
  42     pxor   m3, m3
  43     lea    jq, [pred_orderq+1]
  44     test   jq, jq
  45     jz .end_order
  46 .loop_order:
  47     PMACSDQL m2, m0, m1, m2, m0
  48     movd   m0, [decodedq+jq*4]
  49     PMACSDQL m3, m1, m0, m3, m1
  50     movd   m1, [coeffsq+jq*4]
  51     inc    jq
  52     jl .loop_order
  53 .end_order:
  54     PMACSDQL m2, m0, m1, m2, m0
  55     psrlq  m2, m4
  56     movd   m0, [decodedq]
  57     paddd  m0, m2
  58     movd   [decodedq], m0
  59     sub  lend, 2
  60     jl .ret
  61     PMACSDQL m3, m1, m0, m3, m1
  62     psrlq  m3, m4
  63     movd   m1, [decodedq+4]
  64     paddd  m1, m3
  65     movd   [decodedq+4], m1
  66     jg .loop_sample
  67 .ret:
  68     REP_RET
  69 %endmacro
  70
  71 %if HAVE_XOP_EXTERNAL
  72 LPC_32 xop
  73 %endif
  74 LPC_32 sse4