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//@author: initial implementation Sandro Wenzel (July 2018)
#ifndef VOLUMES_SUNPLACEDVOLUME_IMPLAS_H_
#define VOLUMES_SUNPLACEDVOLUME_IMPLAS_H_
#include "VecGeom/base/Global.h"
#include "VecGeom/volumes/UnplacedVolume.h"
#include "VecGeom/management/VolumeFactory.h"
#include "VecGeom/volumes/PlacedVolImplHelper.h"
#include "VecGeom/volumes/SpecializedPlacedVolImplHelper.h"
#include "VecGeom/volumes/kernel/ImplAsImplementation.h"
#include <cassert>
#include <type_traits>
namespace vecgeom {
VECGEOM_DEVICE_DECLARE_CONV_TEMPLATE_2t(class, SUnplacedImplAs, typename, typename);
inline namespace VECGEOM_IMPL_NAMESPACE {
// A wrapper class which generically implements a specialization of UnplacedBase
// implemented in terms of another **existing** implementing volume ImplementingUnplaced.
template <typename UnplacedBase, typename ImplementingUnplaced>
class SUnplacedImplAs : public UnplacedBase {
// static assert(make sure UnplacedBase is an UnplacedVolume
public:
using UnplacedStruct_t = typename ImplementingUnplaced::UnplacedStruct_t;
template <typename... Args>
SUnplacedImplAs(Args... args) : UnplacedBase(args...)
{
fImplPtr = new ImplementingUnplaced(args...);
}
// implement the important unplaced volume interfaces
VECCORE_ATT_HOST_DEVICE
bool Contains(Vector3D<Precision> const &p) const override { return fImplPtr->ImplementingUnplaced::Contains(p); }
VECCORE_ATT_HOST_DEVICE
EnumInside Inside(Vector3D<Precision> const &p) const override { return fImplPtr->ImplementingUnplaced::Inside(p); }
// DistanceToOut
VECCORE_ATT_HOST_DEVICE
Precision DistanceToOut(Vector3D<Precision> const &p, Vector3D<Precision> const &d,
Precision step_max = kInfLength) const override
{
return fImplPtr->ImplementingUnplaced::DistanceToOut(p, d, step_max);
}
VECCORE_ATT_HOST_DEVICE
Precision DistanceToOut(Vector3D<Precision> const &p, Vector3D<Precision> const &d, Vector3D<Precision> &normal,
bool &convex, Precision step_max = kInfLength) const override
{
return fImplPtr->ImplementingUnplaced::DistanceToOut(p, d, normal, convex, step_max);
}
VECCORE_ATT_HOST_DEVICE
Real_v DistanceToOutVec(Vector3D<Real_v> const &p, Vector3D<Real_v> const &d, Real_v const &step_max) const override
{
return fImplPtr->ImplementingUnplaced::DistanceToOutVec(p, d, step_max);
}
// the container/basket interface (possibly to be deprecated)
void DistanceToOut(SOA3D<Precision> const &points, SOA3D<Precision> const &directions,
Precision const *const step_max, Precision *const output) const override
{
return fImplPtr->ImplementingUnplaced::DistanceToOut(points, directions, step_max, output);
}
// SafetyToOut
VECCORE_ATT_HOST_DEVICE
Precision SafetyToOut(Vector3D<Precision> const &p) const override
{
return fImplPtr->ImplementingUnplaced::SafetyToOut(p);
}
VECCORE_ATT_HOST_DEVICE
Real_v SafetyToOutVec(Vector3D<Real_v> const &p) const override
{
return fImplPtr->ImplementingUnplaced::SafetyToOutVec(p);
}
void SafetyToOut(SOA3D<Precision> const &points, Precision *const output) const override
{
return fImplPtr->ImplementingUnplaced::SafetyToOut(points, output);
}
// NOTE: This does not work yet (for whatever reason) since the trampoline dispatch is confused
// in UnplacedVolume.h
// DistanceToIn
// VECCORE_ATT_HOST_DEVICE
// Precision DistanceToIn(Vector3D<Precision> const &position, Vector3D<Precision> const &direction,
// const Precision step_max) const override
// {
// return fImplPtr->ImplementingUnplaced::DistanceToIn(position, direction, step_max);
// }
// VECCORE_ATT_HOST_DEVICE
// Real_v DistanceToInVec(Vector3D<Real_v> const &position, Vector3D<Real_v> const &direction,
// const Real_v &step_max) const override
// {
// return fImplPtr->ImplementingUnplaced::DistanceToInVec(position, direction, step_max);
// }
VECCORE_ATT_HOST_DEVICE
Precision SafetyToIn(Vector3D<Precision> const &position) const override
{
return fImplPtr->ImplementingUnplaced::SafetyToIn(position);
}
VECCORE_ATT_HOST_DEVICE
Real_v SafetyToInVec(Vector3D<Real_v> const &p) const override
{
return fImplPtr->ImplementingUnplaced::SafetyToInVec(p);
}
// ---------------- SamplePointOnSurface ----------------------------------------------------------
Vector3D<Precision> SamplePointOnSurface() const override
{
return fImplPtr->ImplementingUnplaced::SamplePointOnSurface();
}
// ----------------- Extent --------------------------------------------------------------------
VECCORE_ATT_HOST_DEVICE
void Extent(Vector3D<Precision> &aMin, Vector3D<Precision> &aMax) const override
{
fImplPtr->ImplementingUnplaced::Extent(aMin, aMax);
}
using StructType = decltype(std::declval<ImplementingUnplaced>().GetStruct());
VECCORE_ATT_HOST_DEVICE
StructType GetStruct() const { return fImplPtr->ImplementingUnplaced::GetStruct(); }
private:
// select target specialization helpers with SFINAE
template <typename IUnplaced, typename ImplementingKernel>
VPlacedVolume *changeTypeKeepTransformation(
VPlacedVolume const *p, typename std::enable_if<IUnplaced::SIMDHELPER, IUnplaced>::type * = nullptr) const
{
// if the implementing helper supports SIMD
auto c = VolumeFactory::ChangeTypeKeepTransformation<SIMDSpecializedVolImplHelper, ImplementingKernel>(p);
return c;
}
template <typename IUnplaced, typename ImplementingKernel>
VPlacedVolume *changeTypeKeepTransformation(
VPlacedVolume const *p, typename std::enable_if<!IUnplaced::SIMDHELPER, IUnplaced>::type * = nullptr) const
{
// if the implementing helper does not support SIMD
auto c = VolumeFactory::ChangeTypeKeepTransformation<LoopSpecializedVolImplHelper, ImplementingKernel>(p);
return c;
}
VPlacedVolume *SpecializedVolume(LogicalVolume const *const volume, Transformation3D const *const transformation,
const TranslationCode trans_code, const RotationCode rot_code,
VPlacedVolume *const placement = NULL) const override
{
auto p = fImplPtr->ImplementingUnplaced::SpecializedVolume(volume, transformation, trans_code, rot_code, placement);
using ImplementingKernel = IndirectImplementation<SUnplacedImplAs<UnplacedBase, ImplementingUnplaced>,
typename ImplementingUnplaced::Kernel>;
// the right function to use will be selected with SFINAE and enable_if
return changeTypeKeepTransformation<ImplementingUnplaced, ImplementingKernel>(p);
// TODO: original p is no longer needed in principle: delete and deregister from GeoManager
// delete p;
}
ImplementingUnplaced *fImplPtr;
};
} // namespace VECGEOM_IMPL_NAMESPACE
} // namespace vecgeom
#endif /* VOLUMES_SUNPLACEDVOLUME_IMPLAS_H_ */
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