82 lines
3.3 KiB
C++
82 lines
3.3 KiB
C++
// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2025 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef GU_AABB_TREE_UPDATE_MAP_H
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#define GU_AABB_TREE_UPDATE_MAP_H
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#include "common/PxPhysXCommonConfig.h"
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#include "GuPrunerTypedef.h"
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#include "foundation/PxArray.h"
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namespace physx
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{
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namespace Gu
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{
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class AABBTree;
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// Maps pruning pool indices to AABB-tree indices (i.e. locates the object's box in the aabb-tree nodes pool)
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//
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// The map spans pool indices from 0..N-1, where N is the number of pool entries when the map was created from a tree.
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//
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// It maps:
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// to node indices in the range 0..M-1, where M is the number of nodes in the tree the map was created from,
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// or to INVALID_NODE_ID if the pool entry was removed or pool index is outside input domain.
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//
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// The map is the inverse of the tree mapping: (node[map[poolID]].primitive == poolID) is true at all times.
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class AABBTreeUpdateMap
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{
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public:
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AABBTreeUpdateMap() {}
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~AABBTreeUpdateMap() {}
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void release()
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{
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mMapping.reset();
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}
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// indices offset used when indices are shifted from objects (used for merged trees)
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PX_PHYSX_COMMON_API void initMap(PxU32 numPoolObjects, const AABBTree& tree);
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PX_PHYSX_COMMON_API void invalidate(PoolIndex poolIndex, PoolIndex replacementPoolIndex, AABBTree& tree);
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PX_FORCE_INLINE TreeNodeIndex operator[](PxU32 poolIndex) const
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{
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return poolIndex < mMapping.size() ? mMapping[poolIndex] : INVALID_NODE_ID;
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}
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private:
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// maps from prunerIndex (index in the PruningPool) to treeNode index
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// this will only map to leaf tree nodes
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PxArray<TreeNodeIndex> mMapping;
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};
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}
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}
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#endif
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