OpenShot Library | libopenshot  0.2.6
OpenMPUtilities.h
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1 /**
2  * @file
3  * @brief Header file for OpenMPUtilities (set some common macros)
4  * @author Jonathan Thomas <jonathan@openshot.org>
5  *
6  * @ref License
7  */
8 
9 /* LICENSE
10  *
11  * Copyright (c) 2008-2019 OpenShot Studios, LLC
12  * <http://www.openshotstudios.com/>. This file is part of
13  * OpenShot Library (libopenshot), an open-source project dedicated to
14  * delivering high quality video editing and animation solutions to the
15  * world. For more information visit <http://www.openshot.org/>.
16  *
17  * OpenShot Library (libopenshot) is free software: you can redistribute it
18  * and/or modify it under the terms of the GNU Lesser General Public License
19  * as published by the Free Software Foundation, either version 3 of the
20  * License, or (at your option) any later version.
21  *
22  * OpenShot Library (libopenshot) is distributed in the hope that it will be
23  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25  * GNU Lesser General Public License for more details.
26  *
27  * You should have received a copy of the GNU Lesser General Public License
28  * along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
29  */
30 
31 #ifndef OPENSHOT_OPENMP_UTILITIES_H
32 #define OPENSHOT_OPENMP_UTILITIES_H
33 
34 #include <omp.h>
35 #include <algorithm>
36 #include <string>
37 
38 #include "Settings.h"
39 
40 // Calculate the # of OpenMP Threads to allow
41 #define OPEN_MP_NUM_PROCESSORS (std::min(omp_get_num_procs(), std::max(2, openshot::Settings::Instance()->OMP_THREADS) ))
42 #define FF_NUM_PROCESSORS (std::min(omp_get_num_procs(), std::max(2, openshot::Settings::Instance()->FF_THREADS) ))
43 
44 // Set max-active-levels to the max supported, if possible
45 // (supported_active_levels is OpenMP 5.0 (November 2018) or later, only.)
46 #if (_OPENMP >= 201811)
47  #define OPEN_MP_MAX_ACTIVE omp_get_supported_active_levels()
48 #else
49  #define OPEN_MP_MAX_ACTIVE OPEN_MP_NUM_PROCESSORS
50 #endif
51 
52 #endif
Header file for global Settings class.