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STYLE: Use recursive FFT registration for N to 1 #3065

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Merged
dzenanz merged 1 commit into from
Jan 11, 2022
Merged

STYLE: Use recursive FFT registration for N to 1 #3065

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40 changes: 14 additions & 26 deletions Modules/Filtering/FFT/include/itkFFTImageFilterFactory.h
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Original file line number Diff line number Diff line change
Expand Up @@ -93,46 +93,34 @@ class FFTImageFilterFactory : public itk::ObjectFactoryBase
* with distinct specialization.
* Requires TFFTImageFilter to have the template signature <InputImageType, OutputImageType>.
*/
template <typename InputPixelType, typename OutputPixelType, size_t ImageDimension>
template <typename InputPixelType, typename OutputPixelType, unsigned int D, unsigned int... ImageDimensions>
void
OverrideFFTImageFilterType()
OverrideFFTImageFilterType(const std::integer_sequence<unsigned int, D, ImageDimensions...> &)
{
using InputImageType = Image<InputPixelType, ImageDimension>;
using OutputImageType = Image<OutputPixelType, ImageDimension>;
using InputImageType = Image<InputPixelType, D>;
using OutputImageType = Image<OutputPixelType, D>;
this->RegisterOverride(typeid(typename TFFTImageFilter<InputImageType, OutputImageType>::Superclass).name(),
typeid(TFFTImageFilter<InputImageType, OutputImageType>).name(),
"FFT Image Filter Override",
true,
CreateObjectFunction<TFFTImageFilter<InputImageType, OutputImageType>>::New());
OverrideFFTImageFilterType<InputPixelType, OutputPixelType>(
std::integer_sequence<unsigned int, ImageDimensions...>{});
}
template <typename InputPixelType, typename OutputPixelType>
void
OverrideFFTImageFilterType(const std::integer_sequence<unsigned int> &)
{}

FFTImageFilterFactory()
{
OverrideFFTImageFilterType<typename FFTImageFilterTraits<TFFTImageFilter>::template InputPixelType<float>,
typename FFTImageFilterTraits<TFFTImageFilter>::template OutputPixelType<float>,
1>();
OverrideFFTImageFilterType<typename FFTImageFilterTraits<TFFTImageFilter>::template InputPixelType<float>,
typename FFTImageFilterTraits<TFFTImageFilter>::template OutputPixelType<float>,
2>();
OverrideFFTImageFilterType<typename FFTImageFilterTraits<TFFTImageFilter>::template InputPixelType<float>,
typename FFTImageFilterTraits<TFFTImageFilter>::template OutputPixelType<float>,
3>();
OverrideFFTImageFilterType<typename FFTImageFilterTraits<TFFTImageFilter>::template InputPixelType<float>,
typename FFTImageFilterTraits<TFFTImageFilter>::template OutputPixelType<float>,
4>();
typename FFTImageFilterTraits<TFFTImageFilter>::template OutputPixelType<float>>(
std::integer_sequence<unsigned int, 4, 3, 2, 1>{});

OverrideFFTImageFilterType<typename FFTImageFilterTraits<TFFTImageFilter>::template InputPixelType<double>,
typename FFTImageFilterTraits<TFFTImageFilter>::template OutputPixelType<double>,
1>();
OverrideFFTImageFilterType<typename FFTImageFilterTraits<TFFTImageFilter>::template InputPixelType<double>,
typename FFTImageFilterTraits<TFFTImageFilter>::template OutputPixelType<double>,
2>();
OverrideFFTImageFilterType<typename FFTImageFilterTraits<TFFTImageFilter>::template InputPixelType<double>,
typename FFTImageFilterTraits<TFFTImageFilter>::template OutputPixelType<double>,
3>();
OverrideFFTImageFilterType<typename FFTImageFilterTraits<TFFTImageFilter>::template InputPixelType<double>,
typename FFTImageFilterTraits<TFFTImageFilter>::template OutputPixelType<double>,
4>();
typename FFTImageFilterTraits<TFFTImageFilter>::template OutputPixelType<double>>(
std::integer_sequence<unsigned int, 4, 3, 2, 1>{});
}
};

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