ffmpeg/libavfilter/x86/vf_gradfun.asm

   1 ;******************************************************************************
   2 ;* x86-optimized functions for gradfun filter
   3 ;*
   4 ;* This file is part of FFmpeg.
   5 ;*
   6 ;* FFmpeg is free software; you can redistribute it and/or
   7 ;* modify it under the terms of the GNU Lesser General Public
   8 ;* License as published by the Free Software Foundation; either
   9 ;* version 2.1 of the License, or (at your option) any later version.
  10 ;*
  11 ;* FFmpeg is distributed in the hope that it will be useful,
  12 ;* but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 ;* Lesser General Public License for more details.
  15 ;*
  16 ;* You should have received a copy of the GNU Lesser General Public
  17 ;* License along with FFmpeg; if not, write to the Free Software
  18 ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19 ;******************************************************************************
  20
  21 %include "libavutil/x86/x86util.asm"
  22
  23 SECTION_RODATA
  24
  25 pw_7f: times 8 dw 0x7F
  26 pw_ff: times 8 dw 0xFF
  27
  28 SECTION .text
  29
  30 %macro FILTER_LINE 1
  31     movh       m0, [r2+r0]
  32     movh       m1, [r3+r0]
  33     punpcklbw  m0, m7
  34     punpcklwd  m1, m1
  35     psllw      m0, 7
  36     psubw      m1, m0
  37     PABSW      m2, m1
  38     pmulhuw    m2, m5
  39     psubw      m2, m6
  40     pminsw     m2, m7
  41     pmullw     m2, m2
  42     psllw      m1, 2
  43     paddw      m0, %1
  44     pmulhw     m1, m2
  45     paddw      m0, m1
  46     psraw      m0, 7
  47     packuswb   m0, m0
  48     movh  [r1+r0], m0
  49 %endmacro
  50
  51 INIT_MMX mmxext
  52 cglobal gradfun_filter_line, 6, 6
  53     movh      m5, r4d
  54     pxor      m7, m7
  55     pshufw    m5, m5,0
  56     mova      m6, [pw_7f]
  57     mova      m3, [r5]
  58     mova      m4, [r5+8]
  59 .loop:
  60     FILTER_LINE m3
  61     add       r0, 4
  62     jge .end
  63     FILTER_LINE m4
  64     add       r0, 4
  65     jl .loop
  66 .end:
  67     REP_RET
  68
  69 INIT_XMM ssse3
  70 cglobal gradfun_filter_line, 6, 6, 8
  71     movd       m5, r4d
  72     pxor       m7, m7
  73     pshuflw    m5, m5, 0
  74     mova       m6, [pw_7f]
  75     punpcklqdq m5, m5
  76     mova       m4, [r5]
  77 .loop:
  78     FILTER_LINE m4
  79     add        r0, 8
  80     jl .loop
  81     REP_RET
  82
  83 %macro BLUR_LINE 1
  84 cglobal gradfun_blur_line_%1, 6, 6, 8
  85     mova        m7, [pw_ff]
  86 .loop:
  87     %1          m0, [r4+r0]
  88     %1          m1, [r5+r0]
  89     mova        m2, m0
  90     mova        m3, m1
  91     psrlw       m0, 8
  92     psrlw       m1, 8
  93     pand        m2, m7
  94     pand        m3, m7
  95     paddw       m0, m1
  96     paddw       m2, m3
  97     paddw       m0, m2
  98     paddw       m0, [r2+r0]
  99     mova        m1, [r1+r0]
 100     mova   [r1+r0], m0
 101     psubw       m0, m1
 102     mova   [r3+r0], m0
 103     add         r0, 16
 104     jl .loop
 105     REP_RET
 106 %endmacro
 107
 108 INIT_XMM sse2
 109 BLUR_LINE movdqa
 110 BLUR_LINE movdqu