876efeca09332d3b119c3e5ffe19c52adfd86403
[deb_ffmpeg.git] / h264chroma_init.c
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 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/intreadwrite.h"
25 #include "libavutil/ppc/cpu.h"
26 #include "libavutil/ppc/types_altivec.h"
27 #include "libavutil/ppc/util_altivec.h"
28 #include "libavcodec/h264chroma.h"
29
30 #if HAVE_ALTIVEC
31 #define PUT_OP_U8_ALTIVEC(d, s, dst) d = s
32 #define AVG_OP_U8_ALTIVEC(d, s, dst) d = vec_avg(dst, s)
33
34 #define OP_U8_ALTIVEC PUT_OP_U8_ALTIVEC
35 #define PREFIX_h264_chroma_mc8_altivec put_h264_chroma_mc8_altivec
36 #define PREFIX_h264_chroma_mc8_num altivec_put_h264_chroma_mc8_num
37 #include "h264chroma_template.c"
38 #undef OP_U8_ALTIVEC
39 #undef PREFIX_h264_chroma_mc8_altivec
40 #undef PREFIX_h264_chroma_mc8_num
41
42 #define OP_U8_ALTIVEC AVG_OP_U8_ALTIVEC
43 #define PREFIX_h264_chroma_mc8_altivec avg_h264_chroma_mc8_altivec
44 #define PREFIX_h264_chroma_mc8_num altivec_avg_h264_chroma_mc8_num
45 #include "h264chroma_template.c"
46 #undef OP_U8_ALTIVEC
47 #undef PREFIX_h264_chroma_mc8_altivec
48 #undef PREFIX_h264_chroma_mc8_num
49 #endif /* HAVE_ALTIVEC */
50
51 av_cold void ff_h264chroma_init_ppc(H264ChromaContext *c, int bit_depth)
52 {
53 #if HAVE_ALTIVEC
54 const int high_bit_depth = bit_depth > 8;
55
56 if (!PPC_ALTIVEC(av_get_cpu_flags()))
57 return;
58
59 if (!high_bit_depth) {
60 c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec;
61 c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec;
62 }
63 #endif /* HAVE_ALTIVEC */
64 }