mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-10-05 09:59:12 +00:00
87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
//============================================================================
|
|
// Copyright (c) Kitware, Inc.
|
|
// All rights reserved.
|
|
// See LICENSE.txt 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 vtk_m_exec_internal_FastVec_h
|
|
#define vtk_m_exec_internal_FastVec_h
|
|
|
|
#include <vtkm/Types.h>
|
|
#include <vtkm/VecVariable.h>
|
|
|
|
namespace vtkm
|
|
{
|
|
namespace exec
|
|
{
|
|
namespace internal
|
|
{
|
|
|
|
/// Use this class to convert Vecs of any type to an efficient stack based Vec
|
|
/// type. The template parameters are the input Vec type and the maximum
|
|
/// number of components it may have. Specializations exist to optimize
|
|
/// the copy and stack usage away for already efficient types.
|
|
/// This class is useful when several accesses will be performed on
|
|
/// potentially inefficient Vec types such as VecFromPortalPermute.
|
|
///
|
|
template <typename VecType, vtkm::IdComponent MaxSize>
|
|
class FastVec
|
|
{
|
|
public:
|
|
using Type = vtkm::VecVariable<typename VecType::ComponentType, MaxSize>;
|
|
|
|
explicit VTKM_EXEC FastVec(const VecType& vec)
|
|
: Vec(vec)
|
|
{
|
|
}
|
|
|
|
VTKM_EXEC const Type& Get() const { return this->Vec; }
|
|
|
|
private:
|
|
Type Vec;
|
|
};
|
|
|
|
template <typename ComponentType, vtkm::IdComponent NumComponents, vtkm::IdComponent MaxSize>
|
|
class FastVec<vtkm::Vec<ComponentType, NumComponents>, MaxSize>
|
|
{
|
|
public:
|
|
using Type = vtkm::Vec<ComponentType, NumComponents>;
|
|
|
|
explicit VTKM_EXEC FastVec(const Type& vec)
|
|
: Vec(vec)
|
|
{
|
|
VTKM_ASSERT(vec.GetNumberOfComponents() <= MaxSize);
|
|
}
|
|
|
|
VTKM_EXEC const Type& Get() const { return this->Vec; }
|
|
|
|
private:
|
|
const Type& Vec;
|
|
};
|
|
|
|
template <typename ComponentType, vtkm::IdComponent MaxSize1, vtkm::IdComponent MaxSize2>
|
|
class FastVec<vtkm::VecVariable<ComponentType, MaxSize1>, MaxSize2>
|
|
{
|
|
public:
|
|
using Type = vtkm::VecVariable<ComponentType, MaxSize1>;
|
|
|
|
explicit VTKM_EXEC FastVec(const Type& vec)
|
|
: Vec(vec)
|
|
{
|
|
VTKM_ASSERT(vec.GetNumberOfComponents() <= MaxSize2);
|
|
}
|
|
|
|
VTKM_EXEC const Type& Get() const { return this->Vec; }
|
|
|
|
private:
|
|
const Type& Vec;
|
|
};
|
|
}
|
|
}
|
|
} // vtkm::exec::internal
|
|
|
|
#endif // vtk_m_exec_internal_FastVec_h
|