mirror of
https://github.com/xenia-project/FFmpeg.git
synced 2024-11-24 03:59:43 +00:00
168 lines
6.8 KiB
C
168 lines
6.8 KiB
C
/*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; 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"
|
|
#include "opt.h"
|
|
|
|
static int cpuflags_mask = -1, checked;
|
|
|
|
int av_get_cpu_flags(void)
|
|
{
|
|
static int flags;
|
|
|
|
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();
|
|
|
|
flags &= cpuflags_mask;
|
|
checked = 1;
|
|
|
|
return flags;
|
|
}
|
|
|
|
void av_set_cpu_flags_mask(int mask)
|
|
{
|
|
cpuflags_mask = mask;
|
|
checked = 0;
|
|
}
|
|
|
|
int av_parse_cpu_flags(const char *s)
|
|
{
|
|
#define CPUFLAG_MMXEXT (AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT | AV_CPU_FLAG_CMOV)
|
|
#define CPUFLAG_3DNOW (AV_CPU_FLAG_3DNOW | AV_CPU_FLAG_MMX)
|
|
#define CPUFLAG_3DNOWEXT (AV_CPU_FLAG_3DNOWEXT | CPUFLAG_3DNOW)
|
|
#define CPUFLAG_SSE (AV_CPU_FLAG_SSE | CPUFLAG_MMXEXT)
|
|
#define CPUFLAG_SSE2 (AV_CPU_FLAG_SSE2 | CPUFLAG_SSE)
|
|
#define CPUFLAG_SSE2SLOW (AV_CPU_FLAG_SSE2SLOW | CPUFLAG_SSE2)
|
|
#define CPUFLAG_SSE3 (AV_CPU_FLAG_SSE3 | CPUFLAG_SSE2)
|
|
#define CPUFLAG_SSE3SLOW (AV_CPU_FLAG_SSE3SLOW | CPUFLAG_SSE3)
|
|
#define CPUFLAG_SSSE3 (AV_CPU_FLAG_SSSE3 | CPUFLAG_SSE3)
|
|
#define CPUFLAG_SSE4 (AV_CPU_FLAG_SSE4 | CPUFLAG_SSSE3)
|
|
#define CPUFLAG_SSE42 (AV_CPU_FLAG_SSE42 | CPUFLAG_SSE4)
|
|
#define CPUFLAG_AVX (AV_CPU_FLAG_AVX | CPUFLAG_SSE42)
|
|
#define CPUFLAG_XOP (AV_CPU_FLAG_XOP | CPUFLAG_AVX)
|
|
#define CPUFLAG_FMA4 (AV_CPU_FLAG_FMA4 | CPUFLAG_AVX)
|
|
static const AVOption cpuflags_opts[] = {
|
|
{ "flags" , NULL, 0, AV_OPT_TYPE_FLAGS, { 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
|
|
#if ARCH_PPC
|
|
{ "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ALTIVEC }, .unit = "flags" },
|
|
#elif ARCH_X86
|
|
{ "mmx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX }, .unit = "flags" },
|
|
{ "mmxext" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_MMXEXT }, .unit = "flags" },
|
|
{ "sse" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE }, .unit = "flags" },
|
|
{ "sse2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE2 }, .unit = "flags" },
|
|
{ "sse2slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE2SLOW }, .unit = "flags" },
|
|
{ "sse3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE3 }, .unit = "flags" },
|
|
{ "sse3slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE3SLOW }, .unit = "flags" },
|
|
{ "ssse3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSSE3 }, .unit = "flags" },
|
|
{ "atom" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ATOM }, .unit = "flags" },
|
|
{ "sse4.1" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE4 }, .unit = "flags" },
|
|
{ "sse4.2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE42 }, .unit = "flags" },
|
|
{ "avx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX }, .unit = "flags" },
|
|
{ "xop" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_XOP }, .unit = "flags" },
|
|
{ "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA4 }, .unit = "flags" },
|
|
{ "3dnow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOW }, .unit = "flags" },
|
|
{ "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOWEXT }, .unit = "flags" },
|
|
{ "cmov", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV }, .unit = "flags" },
|
|
#elif ARCH_ARM
|
|
{ "armv5te", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV5TE }, .unit = "flags" },
|
|
{ "armv6", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6 }, .unit = "flags" },
|
|
{ "armv6t2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6T2 }, .unit = "flags" },
|
|
{ "vfp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP }, .unit = "flags" },
|
|
{ "vfpv3", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFPV3 }, .unit = "flags" },
|
|
{ "neon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON }, .unit = "flags" },
|
|
#endif
|
|
{ NULL },
|
|
};
|
|
static const AVClass class = {
|
|
.class_name = "cpuflags",
|
|
.item_name = av_default_item_name,
|
|
.option = cpuflags_opts,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
int flags = 0, ret;
|
|
const AVClass *pclass = &class;
|
|
|
|
if ((ret = av_opt_eval_flags(&pclass, &cpuflags_opts[0], s, &flags)) < 0)
|
|
return ret;
|
|
|
|
return flags & INT_MAX;
|
|
}
|
|
|
|
#ifdef TEST
|
|
|
|
#undef printf
|
|
#include <stdio.h>
|
|
|
|
static const struct {
|
|
int flag;
|
|
const char *name;
|
|
} cpu_flag_tab[] = {
|
|
#if ARCH_ARM
|
|
{ AV_CPU_FLAG_ARMV5TE, "armv5te" },
|
|
{ AV_CPU_FLAG_ARMV6, "armv6" },
|
|
{ AV_CPU_FLAG_ARMV6T2, "armv6t2" },
|
|
{ AV_CPU_FLAG_VFP, "vfp" },
|
|
{ AV_CPU_FLAG_VFPV3, "vfpv3" },
|
|
{ AV_CPU_FLAG_NEON, "neon" },
|
|
#elif ARCH_PPC
|
|
{ AV_CPU_FLAG_ALTIVEC, "altivec" },
|
|
#elif ARCH_X86
|
|
{ AV_CPU_FLAG_MMX, "mmx" },
|
|
{ AV_CPU_FLAG_MMXEXT, "mmxext" },
|
|
{ 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
|