Ray molenkamp
626a79204e
If a define of NOMINMAX was made before BLI_task.hh was included, the compiler would emit a warning C4005: 'NOMINMAX': macro redefinition warning, to work around this only define it if it is not already defined, and only undefine it if we were the ones that made the define earlier.
79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#pragma once
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/** \file
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* \ingroup bli
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*/
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#ifdef WITH_TBB
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/* Quiet top level deprecation message, unrelated to API usage here. */
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# define TBB_SUPPRESS_DEPRECATED_MESSAGES 1
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# if defined(WIN32) && !defined(NOMINMAX)
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/* TBB includes Windows.h which will define min/max macros causing issues
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* when we try to use std::min and std::max later on. */
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# define NOMINMAX
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# define TBB_MIN_MAX_CLEANUP
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# endif
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# include <tbb/tbb.h>
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# ifdef WIN32
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/* We cannot keep this defined, since other parts of the code deal with this on their own, leading
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* to multiple define warnings unless we un-define this, however we can only undefine this if we
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* were the ones that made the definition earlier. */
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# ifdef TBB_MIN_MAX_CLEANUP
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# undef NOMINMAX
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# endif
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# endif
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#endif
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#include "BLI_index_range.hh"
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#include "BLI_utildefines.h"
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namespace blender {
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template<typename Range, typename Function>
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void parallel_for_each(Range &range, const Function &function)
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{
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#ifdef WITH_TBB
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tbb::parallel_for_each(range, function);
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#else
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for (auto &value : range) {
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function(value);
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}
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#endif
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}
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template<typename Function>
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void parallel_for(IndexRange range, int64_t grain_size, const Function &function)
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{
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if (range.size() == 0) {
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return;
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}
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#ifdef WITH_TBB
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tbb::parallel_for(tbb::blocked_range<int64_t>(range.first(), range.one_after_last(), grain_size),
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[&](const tbb::blocked_range<int64_t> &subrange) {
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function(IndexRange(subrange.begin(), subrange.size()));
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});
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#else
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UNUSED_VARS(grain_size);
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function(range);
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#endif
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}
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} // namespace blender
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