/* * 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" }, #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