Default storage policy for PackedBVH: primitives stored as std::shared_ptr<const P>, exactly as PackedBVH has always stored them. More...

#include <EBGeometry_BVH.hpp>

Public Types
using	StorageType = std::shared_ptr< const P >
	Storage representation: a shared pointer to a const primitive, as PackedBVH has always stored it.

Static Public Member Functions
static const P &	get (const StorageType &a_stored) noexcept
	Dereference stored element to the primitive it refers to.

static void	appendTreeLeaf (std::vector< StorageType > &a_dst, const PrimitiveList< P > &a_leafPrims)
	Append one TreeBVH leaf's primitives to PackedBVH's flat primitive array.

static void	appendAliased (std::vector< StorageType > &a_dst, const std::shared_ptr< std::vector< P > > &a_block)
	Materialise a converting packWith() constructor's single contiguous conversion buffer into PackedBVH's flat primitive array.

Detailed Description

template<class P>
struct EBGeometry::BVH::SharedPtrStorage< P >

Default storage policy for PackedBVH: primitives stored as std::shared_ptr<const P>, exactly as PackedBVH has always stored them.

A storage policy is a stateless struct bundling an associated storage representation (StorageType) with the handful of operations PackedBVH needs to build and read it: get() (per-element access, used by every leaf-visit callback), appendTreeLeaf() (copying a TreeBVH leaf's primitives into PackedBVH's flat array during the identity pack() constructor), and appendAliased() (appending a converting packWith() constructor's single contiguous conversion buffer to PackedBVH's flat array). Both appendTreeLeaf() and appendAliased() are appenders: they add to whatever a_dst already holds rather than replacing it, so every policy behaves identically no matter how many times PackedBVH calls them. Swapping the policy changes nothing about tree construction or traversal – TreeBVH itself always stores primitives as shared_ptr, regardless of which policy the PackedBVH built from it uses – only what PackedBVH's own primitive array holds.

Template Parameters

P	Primitive type.

Member Function Documentation

◆ appendAliased()

template<class P >

static void EBGeometry::BVH::SharedPtrStorage< P >::appendAliased	(	std::vector< StorageType > &	a_dst,
		const std::shared_ptr< std::vector< P > > &	a_block
	)

inlinestatic

Materialise a converting packWith() constructor's single contiguous conversion buffer into PackedBVH's flat primitive array.

Uses the shared_ptr aliasing constructor so every element shares one control block (one allocation for the whole buffer) while still presenting as an independent shared_ptr<const P> per element.

Parameters

[in,out]	a_dst	PackedBVH's flat primitive array.
[in]	a_block	Single contiguous buffer holding every converted primitive.

◆ appendTreeLeaf()

template<class P >

static void EBGeometry::BVH::SharedPtrStorage< P >::appendTreeLeaf	(	std::vector< StorageType > &	a_dst,
		const PrimitiveList< P > &	a_leafPrims
	)

inlinestatic

Append one TreeBVH leaf's primitives to PackedBVH's flat primitive array.

Used by PackedBVH's identity pack() constructor. Trivial for this policy: the source leaf's shared_ptrs are copied in as-is.

Parameters

[in,out]	a_dst	PackedBVH's flat primitive array.
[in]	a_leafPrims	One TreeBVH leaf's primitive list.

◆ get()

template<class P >

static const P & EBGeometry::BVH::SharedPtrStorage< P >::get ( const StorageType & a_stored )

inlinestaticnoexcept

Dereference stored element to the primitive it refers to.

Parameters

[in] a_stored Stored element.

Returns: Reference to the underlying primitive.

The documentation for this struct was generated from the following file:

Source/EBGeometry_BVH.hpp

Public Types

Static Public Member Functions

Detailed Description

Member Function Documentation

◆ appendAliased()

◆ appendTreeLeaf()

◆ get()