mirror of https://git.ffmpeg.org/ffmpeg.git
38 lines
1.4 KiB
NASM
38 lines
1.4 KiB
NASM
|
;******************************************************************************
|
||
|
|
;* VP9 IDCT SIMD optimizations
|
||
|
|
;*
|
||
|
|
;* Copyright (C) 2013 Clément Bœsch <u pkh me>
|
||
|
|
;* Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail 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
|
||
|
|
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
;******************************************************************************
|
||
|
|
|
||
|
|
%macro VP9_IWHT4_1D 0
|
||
|
|
SWAP 1, 2, 3
|
||
|
|
paddw m0, m2
|
||
|
|
psubw m3, m1
|
||
|
|
psubw m4, m0, m3
|
||
|
|
psraw m4, 1
|
||
|
|
psubw m5, m4, m1
|
||
|
|
SWAP 5, 1
|
||
|
|
psubw m4, m2
|
||
|
|
SWAP 4, 2
|
||
|
|
psubw m0, m1
|
||
|
|
paddw m3, m2
|
||
|
|
SWAP 3, 2, 1
|
||
|
|
%endmacro
|