| 1 | /* |
| 2 | * Alpha optimised block operations |
| 3 | * Copyright (c) 2002 Falk Hueffner <falk@debian.org> |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | #include <stdint.h> |
| 23 | |
| 24 | #include "libavutil/attributes.h" |
| 25 | #include "libavcodec/blockdsp.h" |
| 26 | #include "asm.h" |
| 27 | |
| 28 | static void clear_blocks_axp(int16_t *blocks) { |
| 29 | uint64_t *p = (uint64_t *) blocks; |
| 30 | int n = sizeof(int16_t) * 6 * 64; |
| 31 | |
| 32 | do { |
| 33 | p[0] = 0; |
| 34 | p[1] = 0; |
| 35 | p[2] = 0; |
| 36 | p[3] = 0; |
| 37 | p[4] = 0; |
| 38 | p[5] = 0; |
| 39 | p[6] = 0; |
| 40 | p[7] = 0; |
| 41 | p += 8; |
| 42 | n -= 8 * 8; |
| 43 | } while (n); |
| 44 | } |
| 45 | |
| 46 | av_cold void ff_blockdsp_init_alpha(BlockDSPContext *c, unsigned high_bit_depth) |
| 47 | { |
| 48 | if (!high_bit_depth) { |
| 49 | c->clear_blocks = clear_blocks_axp; |
| 50 | } |
| 51 | } |