mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-07-11 01:28:57 +00:00
56bec1dd7b
This encapsulates a lot of the required memory management into the Buffer object and related code. Many now unneeded classes were deleted.
139 lines
3.8 KiB
C++
139 lines
3.8 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtk_m_internal_ArrayPortalBasic_h
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#define vtk_m_internal_ArrayPortalBasic_h
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#include <vtkm/Assert.h>
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#include <vtkm/Types.h>
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#ifdef VTKM_CUDA
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// CUDA devices have special instructions for faster data loading
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#include <vtkm/exec/cuda/internal/ArrayPortalBasicCuda.h>
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#endif // VTKM_CUDA
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namespace vtkm
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{
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namespace internal
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{
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namespace detail
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{
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// These templated methods can be overloaded for special access to data.
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template <typename T>
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VTKM_EXEC_CONT static inline T ArrayPortalBasicReadGet(const T* const data)
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{
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return *data;
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}
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template <typename T>
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VTKM_EXEC_CONT static inline T ArrayPortalBasicWriteGet(const T* const data)
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{
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return *data;
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}
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template <typename T>
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VTKM_EXEC_CONT static inline void ArrayPortalBasicWriteSet(T* data, const T& value)
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{
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*data = value;
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}
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} // namespace detail
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template <typename T>
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class ArrayPortalBasicRead
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{
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const T* Array = nullptr;
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vtkm::Id NumberOfValues = 0;
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public:
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using ValueType = T;
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VTKM_EXEC_CONT vtkm::Id GetNumberOfValues() const { return this->NumberOfValues; }
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VTKM_EXEC_CONT ValueType Get(vtkm::Id index) const
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{
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VTKM_ASSERT(index >= 0);
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VTKM_ASSERT(index < this->NumberOfValues);
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return detail::ArrayPortalBasicReadGet(this->Array + index);
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}
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VTKM_EXEC_CONT const ValueType* GetIteratorBegin() const { return this->Array; }
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VTKM_EXEC_CONT const ValueType* GetIteratorEnd() const
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{
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return this->Array + this->NumberOfValues;
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}
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VTKM_EXEC_CONT const ValueType* GetArray() const { return this->Array; }
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ArrayPortalBasicRead() = default;
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ArrayPortalBasicRead(ArrayPortalBasicRead&&) = default;
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ArrayPortalBasicRead(const ArrayPortalBasicRead&) = default;
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ArrayPortalBasicRead& operator=(ArrayPortalBasicRead&&) = default;
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ArrayPortalBasicRead& operator=(const ArrayPortalBasicRead&) = default;
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VTKM_EXEC_CONT ArrayPortalBasicRead(const T* array, vtkm::Id numberOfValues)
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: Array(array)
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, NumberOfValues(numberOfValues)
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{
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}
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};
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template <typename T>
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class ArrayPortalBasicWrite
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{
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T* Array = nullptr;
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vtkm::Id NumberOfValues = 0;
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public:
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using ValueType = T;
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VTKM_EXEC_CONT vtkm::Id GetNumberOfValues() const { return this->NumberOfValues; }
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VTKM_EXEC_CONT ValueType Get(vtkm::Id index) const
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{
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VTKM_ASSERT(index >= 0);
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VTKM_ASSERT(index < this->NumberOfValues);
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return detail::ArrayPortalBasicWriteGet(this->Array + index);
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}
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VTKM_EXEC_CONT void Set(vtkm::Id index, const ValueType& value) const
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{
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VTKM_ASSERT(index >= 0);
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VTKM_ASSERT(index < this->NumberOfValues);
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detail::ArrayPortalBasicWriteSet(this->Array + index, value);
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}
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VTKM_EXEC_CONT ValueType* GetIteratorBegin() const { return this->Array; }
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VTKM_EXEC_CONT ValueType* GetIteratorEnd() const { return this->Array + this->NumberOfValues; }
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VTKM_EXEC_CONT ValueType* GetArray() const { return this->Array; }
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ArrayPortalBasicWrite() = default;
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ArrayPortalBasicWrite(ArrayPortalBasicWrite&&) = default;
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ArrayPortalBasicWrite(const ArrayPortalBasicWrite&) = default;
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ArrayPortalBasicWrite& operator=(ArrayPortalBasicWrite&&) = default;
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ArrayPortalBasicWrite& operator=(const ArrayPortalBasicWrite&) = default;
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VTKM_EXEC_CONT ArrayPortalBasicWrite(T* array, vtkm::Id numberOfValues)
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: Array(array)
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, NumberOfValues(numberOfValues)
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{
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}
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};
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}
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} // namespace vtkm::internal
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#endif //vtk_m_internal_ArrayPortalBasic_h
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