mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-16 17:22:55 +00:00
4c6522de2b
`ConvertNumComponentsToOffsets` has been changed to provide a pre- compiled version for common arrays. This helps with the dual goals of compiling less device code and allowing data set builders to not have to use the device compiler. For cases where you need to compile `ConvertNumComponentsToOffsets` for a different kind of array, you can use the internal `ConvertNumComponentsToOffsetsTemplate`.
104 lines
3.4 KiB
C++
104 lines
3.4 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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#include <vtkm/cont/ConvertNumComponentsToOffsets.h>
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#include <vtkm/cont/ErrorBadType.h>
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#include <vtkm/cont/internal/ConvertNumComponentsToOffsetsTemplate.h>
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#include <vtkm/List.h>
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namespace
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{
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struct CallNumToOffsets
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{
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template <typename BaseType>
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VTKM_CONT void operator()(BaseType,
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const vtkm::cont::UnknownArrayHandle& numComponentsArray,
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vtkm::cont::ArrayHandle<vtkm::Id>& offsetsArray,
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vtkm::cont::DeviceAdapterId device,
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bool& converted)
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{
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if (!numComponentsArray.IsBaseComponentType<BaseType>())
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{
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// Not the right type.
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return;
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}
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vtkm::cont::internal::ConvertNumComponentsToOffsetsTemplate(
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numComponentsArray.ExtractComponent<BaseType>(0, vtkm::CopyFlag::Off), // TODO: Allow copy
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offsetsArray,
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device);
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converted = true;
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}
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};
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} // anonymous namespace
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namespace vtkm
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{
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namespace cont
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{
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void ConvertNumComponentsToOffsets(const vtkm::cont::UnknownArrayHandle& numComponentsArray,
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vtkm::cont::ArrayHandle<vtkm::Id>& offsetsArray,
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vtkm::Id& componentsArraySize,
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vtkm::cont::DeviceAdapterId device)
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{
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vtkm::cont::ConvertNumComponentsToOffsets(numComponentsArray, offsetsArray, device);
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componentsArraySize =
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vtkm::cont::ArrayGetValue(offsetsArray.GetNumberOfValues() - 1, offsetsArray);
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}
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void ConvertNumComponentsToOffsets(const vtkm::cont::UnknownArrayHandle& numComponentsArray,
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vtkm::cont::ArrayHandle<vtkm::Id>& offsetsArray,
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vtkm::cont::DeviceAdapterId device)
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{
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if (numComponentsArray.GetNumberOfComponentsFlat() > 1)
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{
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throw vtkm::cont::ErrorBadType(
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"ConvertNumComponentsToOffsets only works with arrays of integers, not Vecs.");
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}
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using SupportedTypes = vtkm::List<vtkm::Int32, vtkm::Int64>;
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bool converted = false;
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vtkm::ListForEach(
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CallNumToOffsets{}, SupportedTypes{}, numComponentsArray, offsetsArray, device, converted);
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if (!converted)
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{
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internal::ThrowCastAndCallException(numComponentsArray, typeid(SupportedTypes));
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}
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}
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vtkm::cont::ArrayHandle<vtkm::Id> ConvertNumComponentsToOffsets(
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const vtkm::cont::UnknownArrayHandle& numComponentsArray,
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vtkm::Id& componentsArraySize,
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vtkm::cont::DeviceAdapterId device)
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{
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vtkm::cont::ArrayHandle<vtkm::Id> offsetsArray;
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vtkm::cont::ConvertNumComponentsToOffsets(
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numComponentsArray, offsetsArray, componentsArraySize, device);
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return offsetsArray;
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}
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vtkm::cont::ArrayHandle<vtkm::Id> ConvertNumComponentsToOffsets(
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const vtkm::cont::UnknownArrayHandle& numComponentsArray,
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vtkm::cont::DeviceAdapterId device)
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{
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vtkm::cont::ArrayHandle<vtkm::Id> offsetsArray;
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vtkm::cont::ConvertNumComponentsToOffsets(numComponentsArray, offsetsArray, device);
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return offsetsArray;
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}
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} // namespace vtkm::cont
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} // namespace vtkm
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