mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.6 KiB
86 lines
2.6 KiB
;****************************************************************************** |
|
;* SIMD-optimized clear block functions |
|
;* Copyright (c) 2002 Michael Niedermayer |
|
;* Copyright (c) 2008 Loren Merritt |
|
;* Copyright (c) 2009 Fiona Glaser |
|
;* |
|
;* 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 |
|
;****************************************************************************** |
|
|
|
%include "libavutil/x86/x86util.asm" |
|
|
|
SECTION_TEXT |
|
|
|
;---------------------------------------- |
|
; void ff_clear_block(int16_t *blocks); |
|
;---------------------------------------- |
|
; %1 = number of xmm registers used |
|
; %2 = number of inline store loops |
|
%macro CLEAR_BLOCK 2 |
|
cglobal clear_block, 1, 1, %1, blocks |
|
ZERO m0, m0 |
|
%assign %%i 0 |
|
%rep %2 |
|
mova [blocksq+mmsize*(0+%%i)], m0 |
|
mova [blocksq+mmsize*(1+%%i)], m0 |
|
mova [blocksq+mmsize*(2+%%i)], m0 |
|
mova [blocksq+mmsize*(3+%%i)], m0 |
|
mova [blocksq+mmsize*(4+%%i)], m0 |
|
mova [blocksq+mmsize*(5+%%i)], m0 |
|
mova [blocksq+mmsize*(6+%%i)], m0 |
|
mova [blocksq+mmsize*(7+%%i)], m0 |
|
%assign %%i %%i+8 |
|
%endrep |
|
RET |
|
%endmacro |
|
|
|
INIT_MMX mmx |
|
%define ZERO pxor |
|
CLEAR_BLOCK 0, 2 |
|
INIT_XMM sse |
|
%define ZERO xorps |
|
CLEAR_BLOCK 1, 1 |
|
|
|
;----------------------------------------- |
|
; void ff_clear_blocks(int16_t *blocks); |
|
;----------------------------------------- |
|
; %1 = number of xmm registers used |
|
%macro CLEAR_BLOCKS 1 |
|
cglobal clear_blocks, 1, 2, %1, blocks, len |
|
add blocksq, 768 |
|
mov lenq, -768 |
|
ZERO m0, m0 |
|
.loop |
|
mova [blocksq+lenq+mmsize*0], m0 |
|
mova [blocksq+lenq+mmsize*1], m0 |
|
mova [blocksq+lenq+mmsize*2], m0 |
|
mova [blocksq+lenq+mmsize*3], m0 |
|
mova [blocksq+lenq+mmsize*4], m0 |
|
mova [blocksq+lenq+mmsize*5], m0 |
|
mova [blocksq+lenq+mmsize*6], m0 |
|
mova [blocksq+lenq+mmsize*7], m0 |
|
add lenq, mmsize*8 |
|
js .loop |
|
RET |
|
%endmacro |
|
|
|
INIT_MMX mmx |
|
%define ZERO pxor |
|
CLEAR_BLOCKS 0 |
|
INIT_XMM sse |
|
%define ZERO xorps |
|
CLEAR_BLOCKS 1
|
|
|