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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSMPToolsInternal.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#ifndef vtkSMPToolsInternal_h
#define vtkSMPToolsInternal_h
#include "vtkCommonCoreModule.h" // For export macro
#include <algorithm> //for std::sort()
#ifndef __VTK_WRAP__
namespace vtk
{
namespace detail
{
namespace smp
{
typedef void (*ExecuteFunctorPtrType)(void *, vtkIdType, vtkIdType, vtkIdType);
int VTKCOMMONCORE_EXPORT GetNumberOfThreads();
void VTKCOMMONCORE_EXPORT vtkSMPTools_Impl_For_OpenMP(vtkIdType first,
vtkIdType last, vtkIdType grain, ExecuteFunctorPtrType functorExecuter,
void *functor);
template <typename FunctorInternal>
void ExecuteFunctor(void *functor, vtkIdType from, vtkIdType grain,
vtkIdType last)
{
vtkIdType to = from + grain;
if (to > last)
{
to = last;
}
FunctorInternal &fi = *reinterpret_cast<FunctorInternal*>(functor);
fi.Execute(from, to);
}
template <typename FunctorInternal>
static void vtkSMPTools_Impl_For(vtkIdType first, vtkIdType last,
vtkIdType grain, FunctorInternal& fi)
{
vtkIdType n = last - first;
if (n <= 0)
{
return;
}
if (grain >= n)
{
fi.Execute(first, last);
}
else
{
vtkSMPTools_Impl_For_OpenMP(first, last, grain,
ExecuteFunctor<FunctorInternal>, &fi);
}
}
//--------------------------------------------------------------------------------
template<typename RandomAccessIterator>
static void vtkSMPTools_Impl_Sort(RandomAccessIterator begin,
RandomAccessIterator end)
{
std::sort(begin, end);
}
//--------------------------------------------------------------------------------
template<typename RandomAccessIterator, typename Compare>
static void vtkSMPTools_Impl_Sort(RandomAccessIterator begin,
RandomAccessIterator end,
Compare comp)
{
std::sort(begin, end, comp);
}
}//namespace smp
}//namespace detail
}//namespace vtk
#endif // __VTK_WRAP__
#endif
// VTK-HeaderTest-Exclude: vtkSMPToolsInternal.h
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