| ;****************************************************************************** |
| ;* SIMD-optimized clear block functions |
| ;* Copyright (c) 2002 Michael Niedermayer |
| ;* Copyright (c) 2008 Loren Merritt |
| ;* Copyright (c) 2009 Fiona Glaser |
| ;* |
| ;* AVX version by Jokyo Images |
| ;* |
| ;* 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, 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 |
| %assign %%i %%i+4 |
| %endrep |
| RET |
| %endmacro |
| |
| INIT_MMX mmx |
| %define ZERO pxor |
| CLEAR_BLOCK 0, 4 |
| INIT_XMM sse |
| %define ZERO xorps |
| CLEAR_BLOCK 1, 2 |
| INIT_YMM avx |
| 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, 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 |
| INIT_YMM avx |
| CLEAR_BLOCKS 1 |