repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | ;****************************************************************************** |
| 2 | ;* SIMD-optimized clear block functions | |
| 3 | ;* Copyright (c) 2002 Michael Niedermayer | |
| 4 | ;* Copyright (c) 2008 Loren Merritt | |
| 5 | ;* Copyright (c) 2009 Fiona Glaser | |
| 6 | ;* | |
| 7 | ;* This file is part of FFmpeg. | |
| 8 | ;* | |
| 9 | ;* FFmpeg is free software; you can redistribute it and/or | |
| 10 | ;* modify it under the terms of the GNU Lesser General Public | |
| 11 | ;* License as published by the Free Software Foundation; either | |
| 12 | ;* version 2.1 of the License, or (at your option) any later version. | |
| 13 | ;* | |
| 14 | ;* FFmpeg is distributed in the hope that it will be useful, | |
| 15 | ;* but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 17 | ;* Lesser General Public License for more details. | |
| 18 | ;* | |
| 19 | ;* You should have received a copy of the GNU Lesser General Public | |
| 20 | ;* License along with FFmpeg; if not, write to the Free Software | |
| 21 | ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 22 | ;****************************************************************************** | |
| 23 | ||
| 24 | %include "libavutil/x86/x86util.asm" | |
| 25 | ||
| 26 | SECTION_TEXT | |
| 27 | ||
| 28 | ;---------------------------------------- | |
| 29 | ; void ff_clear_block(int16_t *blocks); | |
| 30 | ;---------------------------------------- | |
| 31 | ; %1 = number of xmm registers used | |
| 32 | ; %2 = number of inline store loops | |
| 33 | %macro CLEAR_BLOCK 2 | |
| 34 | cglobal clear_block, 1, 1, %1, blocks | |
| 35 | ZERO m0, m0 | |
| 36 | %assign %%i 0 | |
| 37 | %rep %2 | |
| 38 | mova [blocksq+mmsize*(0+%%i)], m0 | |
| 39 | mova [blocksq+mmsize*(1+%%i)], m0 | |
| 40 | mova [blocksq+mmsize*(2+%%i)], m0 | |
| 41 | mova [blocksq+mmsize*(3+%%i)], m0 | |
| 42 | mova [blocksq+mmsize*(4+%%i)], m0 | |
| 43 | mova [blocksq+mmsize*(5+%%i)], m0 | |
| 44 | mova [blocksq+mmsize*(6+%%i)], m0 | |
| 45 | mova [blocksq+mmsize*(7+%%i)], m0 | |
| 46 | %assign %%i %%i+8 | |
| 47 | %endrep | |
| 48 | RET | |
| 49 | %endmacro | |
| 50 | ||
| 51 | INIT_MMX mmx | |
| 52 | %define ZERO pxor | |
| 53 | CLEAR_BLOCK 0, 2 | |
| 54 | INIT_XMM sse | |
| 55 | %define ZERO xorps | |
| 56 | CLEAR_BLOCK 1, 1 | |
| 57 | ||
| 58 | ;----------------------------------------- | |
| 59 | ; void ff_clear_blocks(int16_t *blocks); | |
| 60 | ;----------------------------------------- | |
| 61 | ; %1 = number of xmm registers used | |
| 62 | %macro CLEAR_BLOCKS 1 | |
| 63 | cglobal clear_blocks, 1, 2, %1, blocks, len | |
| 64 | add blocksq, 768 | |
| 65 | mov lenq, -768 | |
| 66 | ZERO m0, m0 | |
| 67 | .loop | |
| 68 | mova [blocksq+lenq+mmsize*0], m0 | |
| 69 | mova [blocksq+lenq+mmsize*1], m0 | |
| 70 | mova [blocksq+lenq+mmsize*2], m0 | |
| 71 | mova [blocksq+lenq+mmsize*3], m0 | |
| 72 | mova [blocksq+lenq+mmsize*4], m0 | |
| 73 | mova [blocksq+lenq+mmsize*5], m0 | |
| 74 | mova [blocksq+lenq+mmsize*6], m0 | |
| 75 | mova [blocksq+lenq+mmsize*7], m0 | |
| 76 | add lenq, mmsize*8 | |
| 77 | js .loop | |
| 78 | RET | |
| 79 | %endmacro | |
| 80 | ||
| 81 | INIT_MMX mmx | |
| 82 | %define ZERO pxor | |
| 83 | CLEAR_BLOCKS 0 | |
| 84 | INIT_XMM sse | |
| 85 | %define ZERO xorps | |
| 86 | CLEAR_BLOCKS 1 |