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elxSupportedImageDimensions.h
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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef elxSupportedImageDimensions_h
#define elxSupportedImageDimensions_h
#include <elxSupportedImageTypes.h>
#include <utility> // For index_sequence
namespace elastix
{
constexpr unsigned minSupportedImageDimension{ 2 };
constexpr unsigned maxSupportedImageDimension{ 4 };
template <unsigned VDimension, std::size_t... VIndex>
constexpr bool
SupportsFixedDimensionByImageTypeIndexSequence(std::index_sequence<VIndex...>)
{
const bool foundEntries[] = { (ElastixTypedef<VIndex + 1>::FixedDimension == VDimension)... };
for (const bool isDimensionFound : foundEntries)
{
if (isDimensionFound)
{
return true;
}
}
return false;
}
// Tells whether any of the supported fixed image types has the specified dimension.
template <unsigned VDimension>
constexpr bool
SupportsFixedDimension()
{
return SupportsFixedDimensionByImageTypeIndexSequence<VDimension>(
std::make_index_sequence<NrOfSupportedImageTypes>());
}
template <unsigned VDimension = minSupportedImageDimension>
struct FixedImageDimensionSupport
{
// Adds those dimensions from the specified sequence that are supported.
template <std::size_t... VIndex>
static constexpr auto
AddSupportedDimensions(std::index_sequence<VIndex...>)
{
using AddDimensionIfSupported = std::conditional_t<SupportsFixedDimension<VDimension>(),
std::index_sequence<VDimension, VIndex...>,
std::index_sequence<VIndex...>>;
return FixedImageDimensionSupport<VDimension + 1>::AddSupportedDimensions(AddDimensionIfSupported());
}
};
template <>
struct FixedImageDimensionSupport<maxSupportedImageDimension + 1>
{
template <std::size_t... VIndex>
static constexpr auto
AddSupportedDimensions(std::index_sequence<VIndex...> dimensionSequence)
{
return dimensionSequence;
}
};
const auto SupportedFixedImageDimensionSequence =
FixedImageDimensionSupport<>::AddSupportedDimensions(std::index_sequence<>());
} // namespace elastix
#endif
elastix::ElastixTypedef::FixedDimension
static constexpr unsigned int FixedDimension
Definition elxPrepareImageTypeSupport.h:42
elxSupportedImageTypes.h
elastix
Definition elxDefaultConstruct.h:25
elastix::minSupportedImageDimension
constexpr unsigned minSupportedImageDimension
Definition elxSupportedImageDimensions.h:29
elastix::maxSupportedImageDimension
constexpr unsigned maxSupportedImageDimension
Definition elxSupportedImageDimensions.h:32
elastix::SupportsFixedDimensionByImageTypeIndexSequence
constexpr bool SupportsFixedDimensionByImageTypeIndexSequence(std::index_sequence< VIndex... >)
Definition elxSupportedImageDimensions.h:37
elastix::SupportedFixedImageDimensionSequence
const auto SupportedFixedImageDimensionSequence
Definition elxSupportedImageDimensions.h:92
elastix::SupportsFixedDimension
constexpr bool SupportsFixedDimension()
Definition elxSupportedImageDimensions.h:55
elastix::FixedImageDimensionSupport< maxSupportedImageDimension+1 >::AddSupportedDimensions
static constexpr auto AddSupportedDimensions(std::index_sequence< VIndex... > dimensionSequence)
Definition elxSupportedImageDimensions.h:84
elastix::FixedImageDimensionSupport
Definition elxSupportedImageDimensions.h:64
elastix::FixedImageDimensionSupport::AddSupportedDimensions
static constexpr auto AddSupportedDimensions(std::index_sequence< VIndex... >)
Definition elxSupportedImageDimensions.h:68

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