/***************************************************************************** * intel_dispatcher.h: intel compiler cpu dispatcher override ***************************************************************************** * Copyright (C) 2014-2022 x264 project * * Authors: Anton Mitrofanov * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. * * This program is also available under a commercial proprietary license. * For more information, contact us at licensing@x264.com. *****************************************************************************/ #ifndef X264_INTEL_DISPATCHER_H #define X264_INTEL_DISPATCHER_H /* Feature flags using _FEATURE_* defines from immintrin.h */ extern unsigned long long __intel_cpu_feature_indicator; extern unsigned long long __intel_cpu_feature_indicator_x; /* CPU vendor independent version of dispatcher */ void __intel_cpu_features_init_x( void ); static void x264_intel_dispatcher_override( void ) { if( __intel_cpu_feature_indicator & ~1ULL ) return; __intel_cpu_feature_indicator = 0; __intel_cpu_feature_indicator_x = 0; __intel_cpu_features_init_x(); __intel_cpu_feature_indicator = __intel_cpu_feature_indicator_x; } #endif