Split global .gitignore file into per-directory files
[libav.git] / libavutil / cpu-test.c
1 /*
2 * This file is part of Libav.
3 *
4 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include "config.h"
20
21 #if HAVE_UNISTD_H
22 #include <unistd.h>
23 #elif !HAVE_GETOPT
24 #include "compat/getopt.c"
25 #endif
26
27 #include <stdint.h>
28 #include <stdio.h>
29
30 #include "avstring.h"
31 #include "common.h"
32 #include "cpu.h"
33
34 static const struct {
35 int flag;
36 const char *name;
37 } cpu_flag_tab[] = {
38 #if ARCH_AARCH64
39 { AV_CPU_FLAG_ARMV8, "armv8" },
40 { AV_CPU_FLAG_NEON, "neon" },
41 { AV_CPU_FLAG_VFP, "vfp" },
42 #elif ARCH_ARM
43 { AV_CPU_FLAG_ARMV5TE, "armv5te" },
44 { AV_CPU_FLAG_ARMV6, "armv6" },
45 { AV_CPU_FLAG_ARMV6T2, "armv6t2" },
46 { AV_CPU_FLAG_VFP, "vfp" },
47 { AV_CPU_FLAG_VFP_VM, "vfp_vm" },
48 { AV_CPU_FLAG_VFPV3, "vfpv3" },
49 { AV_CPU_FLAG_NEON, "neon" },
50 #elif ARCH_PPC
51 { AV_CPU_FLAG_ALTIVEC, "altivec" },
52 #elif ARCH_X86
53 { AV_CPU_FLAG_MMX, "mmx" },
54 { AV_CPU_FLAG_MMXEXT, "mmxext" },
55 { AV_CPU_FLAG_SSE, "sse" },
56 { AV_CPU_FLAG_SSE2, "sse2" },
57 { AV_CPU_FLAG_SSE2SLOW, "sse2(slow)" },
58 { AV_CPU_FLAG_SSE3, "sse3" },
59 { AV_CPU_FLAG_SSE3SLOW, "sse3(slow)" },
60 { AV_CPU_FLAG_SSSE3, "ssse3" },
61 { AV_CPU_FLAG_ATOM, "atom" },
62 { AV_CPU_FLAG_SSE4, "sse4.1" },
63 { AV_CPU_FLAG_SSE42, "sse4.2" },
64 { AV_CPU_FLAG_AVX, "avx" },
65 { AV_CPU_FLAG_AVXSLOW, "avxslow" },
66 { AV_CPU_FLAG_XOP, "xop" },
67 { AV_CPU_FLAG_FMA3, "fma3" },
68 { AV_CPU_FLAG_FMA4, "fma4" },
69 { AV_CPU_FLAG_3DNOW, "3dnow" },
70 { AV_CPU_FLAG_3DNOWEXT, "3dnowext" },
71 { AV_CPU_FLAG_CMOV, "cmov" },
72 { AV_CPU_FLAG_AVX2, "avx2" },
73 { AV_CPU_FLAG_BMI1, "bmi1" },
74 { AV_CPU_FLAG_BMI2, "bmi2" },
75 #endif
76 { 0 }
77 };
78
79 static void print_cpu_flags(int cpu_flags, const char *type)
80 {
81 int i;
82
83 fprintf(stderr, "cpu_flags(%s) = 0x%08X\n", type, cpu_flags);
84 fprintf(stderr, "cpu_flags_str(%s) =", type);
85 for (i = 0; cpu_flag_tab[i].flag; i++)
86 if (cpu_flags & cpu_flag_tab[i].flag)
87 fprintf(stderr, " %s", cpu_flag_tab[i].name);
88 fprintf(stderr, "\n");
89 }
90
91
92 int main(int argc, char **argv)
93 {
94 int cpu_flags_raw = av_get_cpu_flags();
95 int cpu_flags_eff;
96 int cpu_count = av_cpu_count();
97 char threads[5] = "auto";
98
99 if (cpu_flags_raw < 0)
100 return 1;
101
102 for (;;) {
103 int c = getopt(argc, argv, "c:t:");
104 if (c == -1)
105 break;
106 switch (c) {
107 case 'c':
108 {
109 int cpuflags = av_parse_cpu_flags(optarg);
110 if (cpuflags < 0)
111 return 2;
112 av_set_cpu_flags_mask(cpuflags);
113 break;
114 }
115 case 't':
116 {
117 int len = av_strlcpy(threads, optarg, sizeof(threads));
118 if (len >= sizeof(threads)) {
119 fprintf(stderr, "Invalid thread count '%s'\n", optarg);
120 return 2;
121 }
122 }
123 }
124 }
125
126 cpu_flags_eff = av_get_cpu_flags();
127
128 if (cpu_flags_eff < 0)
129 return 3;
130
131 print_cpu_flags(cpu_flags_raw, "raw");
132 print_cpu_flags(cpu_flags_eff, "effective");
133 fprintf(stderr, "threads = %s (cpu_count = %d)\n", threads, cpu_count);
134
135 return 0;
136 }