mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-18 05:24:42 +00:00
a19a10a53e
* commit '8637f4edeee1a6bd18bc90740fafadd3e1b412aa': x86: Add CPU flag for the i686 cmov instruction Conflicts: doc/APIchanges libavutil/avutil.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "cpu.h"
|
|
#include "config.h"
|
|
|
|
static int flags, checked;
|
|
|
|
void av_force_cpu_flags(int arg){
|
|
flags = arg;
|
|
checked = 1;
|
|
}
|
|
|
|
int av_get_cpu_flags(void)
|
|
{
|
|
if (checked)
|
|
return flags;
|
|
|
|
if (ARCH_ARM) flags = ff_get_cpu_flags_arm();
|
|
if (ARCH_PPC) flags = ff_get_cpu_flags_ppc();
|
|
if (ARCH_X86) flags = ff_get_cpu_flags_x86();
|
|
|
|
checked = 1;
|
|
return flags;
|
|
}
|
|
|
|
#ifdef TEST
|
|
|
|
#undef printf
|
|
#include <stdio.h>
|
|
|
|
static const struct {
|
|
int flag;
|
|
const char *name;
|
|
} cpu_flag_tab[] = {
|
|
#if ARCH_ARM
|
|
{ AV_CPU_FLAG_IWMMXT, "iwmmxt" },
|
|
#elif ARCH_PPC
|
|
{ AV_CPU_FLAG_ALTIVEC, "altivec" },
|
|
#elif ARCH_X86
|
|
{ AV_CPU_FLAG_MMX, "mmx" },
|
|
{ AV_CPU_FLAG_MMX2, "mmx2" },
|
|
{ AV_CPU_FLAG_SSE, "sse" },
|
|
{ AV_CPU_FLAG_SSE2, "sse2" },
|
|
{ AV_CPU_FLAG_SSE2SLOW, "sse2(slow)" },
|
|
{ AV_CPU_FLAG_SSE3, "sse3" },
|
|
{ AV_CPU_FLAG_SSE3SLOW, "sse3(slow)" },
|
|
{ AV_CPU_FLAG_SSSE3, "ssse3" },
|
|
{ AV_CPU_FLAG_ATOM, "atom" },
|
|
{ AV_CPU_FLAG_SSE4, "sse4.1" },
|
|
{ AV_CPU_FLAG_SSE42, "sse4.2" },
|
|
{ AV_CPU_FLAG_AVX, "avx" },
|
|
{ AV_CPU_FLAG_XOP, "xop" },
|
|
{ AV_CPU_FLAG_FMA4, "fma4" },
|
|
{ AV_CPU_FLAG_3DNOW, "3dnow" },
|
|
{ AV_CPU_FLAG_3DNOWEXT, "3dnowext" },
|
|
{ AV_CPU_FLAG_CMOV, "cmov" },
|
|
#endif
|
|
{ 0 }
|
|
};
|
|
|
|
int main(void)
|
|
{
|
|
int cpu_flags = av_get_cpu_flags();
|
|
int i;
|
|
|
|
printf("cpu_flags = 0x%08X\n", cpu_flags);
|
|
printf("cpu_flags =");
|
|
for (i = 0; cpu_flag_tab[i].flag; i++)
|
|
if (cpu_flags & cpu_flag_tab[i].flag)
|
|
printf(" %s", cpu_flag_tab[i].name);
|
|
printf("\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif
|