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86 lines
2.6 KiB
86 lines
2.6 KiB
;****************************************************************************** |
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;* SIMD-optimized clear block functions |
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;* Copyright (c) 2002 Michael Niedermayer |
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;* Copyright (c) 2008 Loren Merritt |
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;* Copyright (c) 2009 Fiona Glaser |
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;* |
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;* This file is part of FFmpeg. |
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;* |
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;* FFmpeg is free software; you can redistribute it and/or |
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;* modify it under the terms of the GNU Lesser General Public |
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;* License as published by the Free Software Foundation; either |
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;* version 2.1 of the License, or (at your option) any later version. |
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;* |
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;* FFmpeg is distributed in the hope that it will be useful, |
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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;* Lesser General Public License for more details. |
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;* |
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;* You should have received a copy of the GNU Lesser General Public |
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;* License along with FFmpeg; if not, write to the Free Software |
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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;****************************************************************************** |
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%include "libavutil/x86/x86util.asm" |
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SECTION .text |
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;---------------------------------------- |
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; void ff_clear_block(int16_t *blocks); |
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;---------------------------------------- |
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; %1 = number of xmm registers used |
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; %2 = number of inline store loops |
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%macro CLEAR_BLOCK 2 |
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cglobal clear_block, 1, 1, %1, blocks |
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ZERO m0, m0 |
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%assign %%i 0 |
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%rep %2 |
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mova [blocksq+mmsize*(0+%%i)], m0 |
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mova [blocksq+mmsize*(1+%%i)], m0 |
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mova [blocksq+mmsize*(2+%%i)], m0 |
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mova [blocksq+mmsize*(3+%%i)], m0 |
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mova [blocksq+mmsize*(4+%%i)], m0 |
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mova [blocksq+mmsize*(5+%%i)], m0 |
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mova [blocksq+mmsize*(6+%%i)], m0 |
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mova [blocksq+mmsize*(7+%%i)], m0 |
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%assign %%i %%i+8 |
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%endrep |
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RET |
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%endmacro |
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INIT_MMX mmx |
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%define ZERO pxor |
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CLEAR_BLOCK 0, 2 |
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INIT_XMM sse |
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%define ZERO xorps |
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CLEAR_BLOCK 1, 1 |
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;----------------------------------------- |
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; void ff_clear_blocks(int16_t *blocks); |
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;----------------------------------------- |
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; %1 = number of xmm registers used |
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%macro CLEAR_BLOCKS 1 |
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cglobal clear_blocks, 1, 2, %1, blocks, len |
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add blocksq, 768 |
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mov lenq, -768 |
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ZERO m0, m0 |
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.loop: |
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mova [blocksq+lenq+mmsize*0], m0 |
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mova [blocksq+lenq+mmsize*1], m0 |
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mova [blocksq+lenq+mmsize*2], m0 |
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mova [blocksq+lenq+mmsize*3], m0 |
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mova [blocksq+lenq+mmsize*4], m0 |
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mova [blocksq+lenq+mmsize*5], m0 |
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mova [blocksq+lenq+mmsize*6], m0 |
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mova [blocksq+lenq+mmsize*7], m0 |
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add lenq, mmsize*8 |
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js .loop |
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RET |
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%endmacro |
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INIT_MMX mmx |
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%define ZERO pxor |
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CLEAR_BLOCKS 0 |
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INIT_XMM sse |
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%define ZERO xorps |
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CLEAR_BLOCKS 1
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