FFmpeg
cpu_internal.h
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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 #ifndef AVUTIL_CPU_INTERNAL_H
20 #define AVUTIL_CPU_INTERNAL_H
21 
22 #include "config.h"
23 
24 #include "cpu.h"
25 
26 #define CPUEXT_SUFFIX(flags, suffix, cpuext) \
27  (HAVE_ ## cpuext ## suffix && ((flags) & AV_CPU_FLAG_ ## cpuext))
28 
29 #define CPUEXT_SUFFIX_FAST2(flags, suffix, cpuext, slow_cpuext) \
30  (HAVE_ ## cpuext ## suffix && ((flags) & AV_CPU_FLAG_ ## cpuext) && \
31  !((flags) & AV_CPU_FLAG_ ## slow_cpuext ## SLOW))
32 
33 #define CPUEXT_SUFFIX_SLOW2(flags, suffix, cpuext, slow_cpuext) \
34  (HAVE_ ## cpuext ## suffix && ((flags) & AV_CPU_FLAG_ ## cpuext) && \
35  ((flags) & AV_CPU_FLAG_ ## slow_cpuext ## SLOW))
36 
37 #define CPUEXT_SUFFIX_FAST(flags, suffix, cpuext) CPUEXT_SUFFIX_FAST2(flags, suffix, cpuext, cpuext)
38 #define CPUEXT_SUFFIX_SLOW(flags, suffix, cpuext) CPUEXT_SUFFIX_SLOW2(flags, suffix, cpuext, cpuext)
39 
40 #define CPUEXT(flags, cpuext) CPUEXT_SUFFIX(flags, , cpuext)
41 #define CPUEXT_FAST(flags, cpuext) CPUEXT_SUFFIX_FAST(flags, , cpuext)
42 #define CPUEXT_SLOW(flags, cpuext) CPUEXT_SUFFIX_SLOW(flags, , cpuext)
43 
44 int ff_get_cpu_flags_aarch64(void);
45 int ff_get_cpu_flags_arm(void);
46 int ff_get_cpu_flags_ppc(void);
47 int ff_get_cpu_flags_x86(void);
48 
49 size_t ff_get_cpu_max_align_aarch64(void);
50 size_t ff_get_cpu_max_align_arm(void);
51 size_t ff_get_cpu_max_align_ppc(void);
52 size_t ff_get_cpu_max_align_x86(void);
53 
54 #endif /* AVUTIL_CPU_INTERNAL_H */
size_t ff_get_cpu_max_align_ppc(void)
Definition: cpu.c:152
int ff_get_cpu_flags_x86(void)
Definition: cpu.c:90
int ff_get_cpu_flags_ppc(void)
This function MAY rely on signal() or fork() in order to make sure AltiVec is present.
Definition: cpu.c:48
int ff_get_cpu_flags_arm(void)
Definition: cpu.c:149
size_t ff_get_cpu_max_align_aarch64(void)
Definition: cpu.c:30
int ff_get_cpu_flags_aarch64(void)
Definition: cpu.c:23
size_t ff_get_cpu_max_align_arm(void)
Definition: cpu.c:162
size_t ff_get_cpu_max_align_x86(void)
Definition: cpu.c:245