2009-02-22 13:35:32 +02:00
|
|
|
;*****************************************************************************
|
|
|
|
|
;* 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 program is free software; you can redistribute it and/or modify
|
|
|
|
|
;* it under the terms of the GNU General Public License as published by
|
|
|
|
|
;* the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
;* (at your option) any later version.
|
|
|
|
|
;*
|
|
|
|
|
;* This program 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 General Public License for more details.
|
|
|
|
|
;*
|
|
|
|
|
;* You should have received a copy of the GNU General Public License
|
|
|
|
|
;* along with this program; if not, write to the Free Software
|
|
|
|
|
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
|
|
|
|
|
;*****************************************************************************
|
|
|
|
|
|
|
|
|
|
%include "x86inc.asm"
|
|
|
|
|
%include "x86util.asm"
|
|
|
|
|
|
|
|
|
|
SECTION_RODATA
|
|
|
|
|
pw_32: times 8 dw 32
|
|
|
|
|
|
|
|
|
|
SECTION .text
|
|
|
|
|
|
|
|
|
|
%macro IDCT4_1D 6
|
|
|
|
|
SUMSUB_BA m%3, m%1
|
|
|
|
|
SUMSUBD2_AB m%2, m%4, m%6, m%5
|
|
|
|
|
SUMSUB_BADC m%2, m%3, m%5, m%1
|
|
|
|
|
SWAP %1, %2, %5, %4, %3
|
|
|
|
|
%endmacro
|
|
|
|
|
|
|
|
|
|
INIT_XMM
|
|
|
|
|
cglobal x264_add8x4_idct_sse2, 3,3
|
|
|
|
|
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 GLOBAL]
|
|
|
|
|
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
|
