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