1/*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#include <stdint.h>
20
21#include "libavutil/attributes.h"
22#include "libavutil/cpu.h"
23#include "libavutil/arm/cpu.h"
24#include "libavcodec/avcodec.h"
25#include "libavcodec/pixblockdsp.h"
26
27void ff_get_pixels_armv6(int16_t *block, const uint8_t *pixels,
28                         ptrdiff_t stride);
29void ff_diff_pixels_armv6(int16_t *block, const uint8_t *s1,
30                          const uint8_t *s2, ptrdiff_t stride);
31
32void ff_get_pixels_neon(int16_t *block, const uint8_t *pixels,
33                        ptrdiff_t stride);
34void ff_get_pixels_unaligned_neon(int16_t *block, const uint8_t *pixels,
35                                  ptrdiff_t stride);
36void ff_diff_pixels_neon(int16_t *block, const uint8_t *s1,
37                         const uint8_t *s2, ptrdiff_t stride);
38void ff_diff_pixels_unaligned_neon(int16_t *block, const uint8_t *s1,
39                                   const uint8_t *s2, ptrdiff_t stride);
40
41av_cold void ff_pixblockdsp_init_arm(PixblockDSPContext *c,
42                                     AVCodecContext *avctx,
43                                     unsigned high_bit_depth)
44{
45    int cpu_flags = av_get_cpu_flags();
46
47    if (have_armv6(cpu_flags)) {
48        if (!high_bit_depth)
49            c->get_pixels = ff_get_pixels_armv6;
50        c->diff_pixels = ff_diff_pixels_armv6;
51    }
52
53    if (have_neon(cpu_flags)) {
54        if (!high_bit_depth) {
55            c->get_pixels_unaligned = ff_get_pixels_unaligned_neon;
56            c->get_pixels = ff_get_pixels_neon;
57        }
58        c->diff_pixels_unaligned = ff_diff_pixels_unaligned_neon;
59        c->diff_pixels = ff_diff_pixels_neon;
60    }
61}
62