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6148 serge 1 
;******************************************************************************
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;* MMX optimized deinterlacing functions
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;* Copyright (c) 2010 Vitor Sessak
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;* Copyright (c) 2002 Michael Niedermayer
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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SECTION_RODATA
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cextern pw_4
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SECTION .text
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%macro DEINTERLACE 1
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%ifidn %1, inplace
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;void ff_deinterlace_line_inplace_mmx(const uint8_t *lum_m4, const uint8_t *lum_m3, const uint8_t *lum_m2, const uint8_t *lum_m1, const uint8_t *lum,  int size)
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cglobal deinterlace_line_inplace_mmx, 6,6,7,      lum_m4, lum_m3, lum_m2, lum_m1, lum, size
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%else
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;void ff_deinterlace_line_mmx(uint8_t *dst, const uint8_t *lum_m4, const uint8_t *lum_m3, const uint8_t *lum_m2, const uint8_t *lum_m1, const uint8_t *lum,  int size)
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cglobal deinterlace_line_mmx,         7,7,7, dst, lum_m4, lum_m3, lum_m2, lum_m1, lum, size
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%endif
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    pxor  mm7, mm7
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    movq  mm6, [pw_4]
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.nextrow:
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    movd  mm0, [lum_m4q]
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    movd  mm1, [lum_m3q]
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    movd  mm2, [lum_m2q]
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%ifidn %1, inplace
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    movd [lum_m4q], mm2
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%endif
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    movd  mm3, [lum_m1q]
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    movd  mm4, [lumq]
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    punpcklbw mm0, mm7
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    punpcklbw mm1, mm7
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    punpcklbw mm2, mm7
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    punpcklbw mm3, mm7
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    punpcklbw mm4, mm7
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    paddw     mm1, mm3
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    psllw     mm2, 1
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    paddw     mm0, mm4
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    psllw     mm1, 2
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    paddw     mm2, mm6
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    paddw     mm1, mm2
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    psubusw   mm1, mm0
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    psrlw     mm1, 3
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    packuswb  mm1, mm7
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%ifidn %1, inplace
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    movd [lum_m2q], mm1
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%else
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    movd   [dstq], mm1
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    add       dstq, 4
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%endif
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    add    lum_m4q, 4
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    add    lum_m3q, 4
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    add    lum_m2q, 4
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    add    lum_m1q, 4
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    add       lumq, 4
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    sub      sized, 4
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    jg .nextrow
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    REP_RET
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%endmacro
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DEINTERLACE ""
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DEINTERLACE inplace