1/*
2 * Copyright (c) 2004 Romain Dolbeau <romain@dolbeau.org>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "config.h"
22
23#include "libavutil/attributes.h"
24#include "libavutil/cpu.h"
25#include "libavutil/intreadwrite.h"
26#include "libavutil/ppc/cpu.h"
27#include "libavutil/ppc/util_altivec.h"
28
29#include "libavcodec/h264chroma.h"
30
31#if HAVE_ALTIVEC
32#define PUT_OP_U8_ALTIVEC(d, s, dst) d = s
33#define AVG_OP_U8_ALTIVEC(d, s, dst) d = vec_avg(dst, s)
34
35#define OP_U8_ALTIVEC                          PUT_OP_U8_ALTIVEC
36#define PREFIX_h264_chroma_mc8_altivec         put_h264_chroma_mc8_altivec
37#define PREFIX_h264_chroma_mc8_num             altivec_put_h264_chroma_mc8_num
38#include "h264chroma_template.c"
39#undef OP_U8_ALTIVEC
40#undef PREFIX_h264_chroma_mc8_altivec
41#undef PREFIX_h264_chroma_mc8_num
42
43#define OP_U8_ALTIVEC                          AVG_OP_U8_ALTIVEC
44#define PREFIX_h264_chroma_mc8_altivec         avg_h264_chroma_mc8_altivec
45#define PREFIX_h264_chroma_mc8_num             altivec_avg_h264_chroma_mc8_num
46#include "h264chroma_template.c"
47#undef OP_U8_ALTIVEC
48#undef PREFIX_h264_chroma_mc8_altivec
49#undef PREFIX_h264_chroma_mc8_num
50#endif /* HAVE_ALTIVEC */
51
52av_cold void ff_h264chroma_init_ppc(H264ChromaContext *c, int bit_depth)
53{
54#if HAVE_ALTIVEC
55    const int high_bit_depth = bit_depth > 8;
56
57    if (!PPC_ALTIVEC(av_get_cpu_flags()))
58        return;
59
60    if (!high_bit_depth) {
61        c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec;
62        c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec;
63    }
64#endif /* HAVE_ALTIVEC */
65}
66