ppc/h264chroma_init.c
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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 "libavcodec/h264chroma.h"
24 
25 #if HAVE_ALTIVEC
26 #include "libavutil/cpu.h"
27 #include "libavutil/intreadwrite.h"
30 #include "dsputil_altivec.h"
31 
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 
53 {
54 #if HAVE_ALTIVEC
55  const int high_bit_depth = bit_depth > 8;
56 
58  if (!high_bit_depth) {
59  c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec;
60  c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec;
61  }
62  }
63 #endif /* HAVE_ALTIVEC */
64 }
#define AV_CPU_FLAG_ALTIVEC
standard
Definition: cpu.h:52
av_cold void ff_h264chroma_init_ppc(H264ChromaContext *c, int bit_depth)
Macro definitions for various function/variable attributes.
#define av_cold
Definition: attributes.h:78
h264_chroma_mc_func avg_h264_chroma_pixels_tab[3]
Definition: h264chroma.h:28
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:30
Contains misc utility macros and inline functions.
static double c[64]
h264_chroma_mc_func put_h264_chroma_pixels_tab[3]
Definition: h264chroma.h:27