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 "cpu.h"
20#include "config.h"
21
22int av_get_cpu_flags(void)
23{
24    static int flags, checked;
25
26    if (checked)
27        return flags;
28
29    if (ARCH_ARM) flags = ff_get_cpu_flags_arm();
30    if (ARCH_PPC) flags = ff_get_cpu_flags_ppc();
31    if (ARCH_X86) flags = ff_get_cpu_flags_x86();
32
33    checked = 1;
34    return flags;
35}
36
37#ifdef TEST
38
39#undef printf
40#include <stdio.h>
41
42static const struct {
43    int flag;
44    const char *name;
45} cpu_flag_tab[] = {
46#if   ARCH_ARM
47    { AV_CPU_FLAG_IWMMXT,    "iwmmxt"     },
48#elif ARCH_PPC
49    { AV_CPU_FLAG_ALTIVEC,   "altivec"    },
50#elif ARCH_X86
51    { AV_CPU_FLAG_MMX,       "mmx"        },
52    { AV_CPU_FLAG_MMX2,      "mmx2"       },
53    { AV_CPU_FLAG_SSE,       "sse"        },
54    { AV_CPU_FLAG_SSE2,      "sse2"       },
55    { AV_CPU_FLAG_SSE2SLOW,  "sse2(slow)" },
56    { AV_CPU_FLAG_SSE3,      "sse3"       },
57    { AV_CPU_FLAG_SSE3SLOW,  "sse3(slow)" },
58    { AV_CPU_FLAG_SSSE3,     "ssse3"      },
59    { AV_CPU_FLAG_ATOM,      "atom"       },
60    { AV_CPU_FLAG_SSE4,      "sse4.1"     },
61    { AV_CPU_FLAG_SSE42,     "sse4.2"     },
62    { AV_CPU_FLAG_AVX,       "avx"        },
63    { AV_CPU_FLAG_XOP,       "xop"        },
64    { AV_CPU_FLAG_FMA4,      "fma4"       },
65    { AV_CPU_FLAG_3DNOW,     "3dnow"      },
66    { AV_CPU_FLAG_3DNOWEXT,  "3dnowext"   },
67#endif
68    { 0 }
69};
70
71int main(void)
72{
73    int cpu_flags = av_get_cpu_flags();
74    int i;
75
76    printf("cpu_flags = 0x%08X\n", cpu_flags);
77    printf("cpu_flags =");
78    for (i = 0; cpu_flag_tab[i].flag; i++)
79        if (cpu_flags & cpu_flag_tab[i].flag)
80            printf(" %s", cpu_flag_tab[i].name);
81    printf("\n");
82
83    return 0;
84}
85
86#endif
87