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ffmpeg / libavutil / cpu.c @ eba586b0

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/*
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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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int main(void)
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{
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    int cpu_flags = av_get_cpu_flags();
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    printf("cpu_flags = 0x%08X\n", cpu_flags);
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    printf("cpu_flags = %s%s%s%s%s%s%s%s%s%s%s%s%s\n",
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#if   ARCH_ARM
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           cpu_flags & AV_CPU_FLAG_IWMMXT   ? "IWMMXT "     : "",
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#elif ARCH_PPC
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           cpu_flags & AV_CPU_FLAG_ALTIVEC  ? "ALTIVEC "    : "",
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#elif ARCH_X86
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           cpu_flags & AV_CPU_FLAG_MMX      ? "MMX "        : "",
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           cpu_flags & AV_CPU_FLAG_MMX2     ? "MMX2 "       : "",
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           cpu_flags & AV_CPU_FLAG_SSE      ? "SSE "        : "",
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           cpu_flags & AV_CPU_FLAG_SSE2     ? "SSE2 "       : "",
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           cpu_flags & AV_CPU_FLAG_SSE2SLOW ? "SSE2(slow) " : "",
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           cpu_flags & AV_CPU_FLAG_SSE3     ? "SSE3 "       : "",
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           cpu_flags & AV_CPU_FLAG_SSE3SLOW ? "SSE3(slow) " : "",
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           cpu_flags & AV_CPU_FLAG_SSSE3    ? "SSSE3 "      : "",
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           cpu_flags & AV_CPU_FLAG_ATOM     ? "Atom "       : "",
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           cpu_flags & AV_CPU_FLAG_SSE4     ? "SSE4.1 "     : "",
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           cpu_flags & AV_CPU_FLAG_SSE42    ? "SSE4.2 "     : "",
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           cpu_flags & AV_CPU_FLAG_AVX      ? "AVX "        : "",
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           cpu_flags & AV_CPU_FLAG_3DNOW    ? "3DNow "      : "",
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           cpu_flags & AV_CPU_FLAG_3DNOWEXT ? "3DNowExt "   : "");
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#endif
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    return 0;
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}
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#endif