;*****************************************************************************
;* SSE2-optimized H.264 iDCT
;*****************************************************************************
;* Copyright (C) 2003-2008 x264 project
;*
;* Authors: Laurent Aimar <fenrir@via.ecp.fr>
;*          Loren Merritt <lorenm@u.washington.edu>
;*          Holger Lubitz <hal@duncan.ol.sub.de>
;*          Min Chen <chenm001.163.com>
;*
;* 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
;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;*****************************************************************************

%include "x86inc.asm"
%include "x86util.asm"

SECTION_RODATA
pw_32: times 8 dw 32

SECTION .text

INIT_XMM
cglobal x264_add8x4_idct_sse2, 3,3,8
    movq   m0, [r1+ 0]
    movq   m1, [r1+ 8]
    movq   m2, [r1+16]
    movq   m3, [r1+24]
    movhps m0, [r1+32]
    movhps m1, [r1+40]
    movhps m2, [r1+48]
    movhps m3, [r1+56]
    IDCT4_1D 0,1,2,3,4,5
    TRANSPOSE2x4x4W 0,1,2,3,4
    paddw m0, [pw_32]
    IDCT4_1D 0,1,2,3,4,5
    pxor  m7, m7
    STORE_DIFF  m0, m4, m7, [r0]
    STORE_DIFF  m1, m4, m7, [r0+r2]
    lea   r0, [r0+r2*2]
    STORE_DIFF  m2, m4, m7, [r0]
    STORE_DIFF  m3, m4, m7, [r0+r2]
    RET