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/*
* 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 02110-1301, USA.
*/
#pragma once
/** \file
* \ingroup bli
#ifdef WITH_TBB
/* Quiet top level deprecation message, unrelated to API usage here. */
# if defined(WIN32) && !defined(NOMINMAX)
/* TBB includes Windows.h which will define min/max macros causing issues
* when we try to use std::min and std::max later on. */
# define NOMINMAX
# define TBB_MIN_MAX_CLEANUP
# endif
# include <tbb/blocked_range.h>
# include <tbb/parallel_for.h>
# include <tbb/parallel_for_each.h>
# ifdef WIN32
/* We cannot keep this defined, since other parts of the code deal with this on their own, leading
* to multiple define warnings unless we un-define this, however we can only undefine this if we
* were the ones that made the definition earlier. */
# ifdef TBB_MIN_MAX_CLEANUP
# undef NOMINMAX
#endif
#include "BLI_index_range.hh"
#include "BLI_utildefines.h"
namespace blender::threading {
template<typename Range, typename Function>
void parallel_for_each(Range &range, const Function &function)
{
tbb::parallel_for_each(range, function);
#else
for (auto &value : range) {
function(value);
}
template<typename Function>
void parallel_for(IndexRange range, int64_t grain_size, const Function &function)
if (range.size() == 0) {
return;
tbb::parallel_for(tbb::blocked_range<int64_t>(range.first(), range.one_after_last(), grain_size),
[&](const tbb::blocked_range<int64_t> &subrange) {
function(IndexRange(subrange.begin(), subrange.size()));
});
UNUSED_VARS(grain_size);
function(range);
} // namespace blender::threading