ded439d842d1ebbfebe72959133cdef5f15d2d1f
[deb_ffmpeg.git] / blockdsp_alpha.c
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 }