mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-27 09:52:17 +00:00
87 lines
2.6 KiB
NASM
87 lines
2.6 KiB
NASM
;******************************************************************************
|
|
;* 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
|