Method addCompound

physx/source/scenequery/src/SqCompoundPruningPool.cpp:199–243

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PoolIndex CompoundTreePool::addCompound(PrunerHandle* results, const BVHStructure& bvhStructure, const PxBounds3& compoundBounds, const PxTransform& transform, 
	CompoundFlag::Enum flags, const PrunerPayload* userData)
{
	if(mNbObjects==mMaxNbObjects) // increase the capacity on overflow
	{
		if(!resize(PxMax<PxU32>(mMaxNbObjects*2, 32)))
		{
			// pool can return an invalid handle if memory alloc fails			
			Ps::getFoundation().error(PxErrorCode::eOUT_OF_MEMORY, __FILE__, __LINE__, "CompoundTreePool::addCompound memory allocation in resize failed.");
			return INVALID_PRUNERHANDLE;
		}
	}
	PX_ASSERT(mNbObjects!=mMaxNbObjects);

	const PoolIndex index = mNbObjects++;
		
	mCompoundBounds[index] = compoundBounds;

	const PxU32 nbObjects = bvhStructure.getNbBounds();

	CompoundTree& tree = mCompoundTrees[index];
	PX_ASSERT(tree.mPruningPool == NULL);
	PX_ASSERT(tree.mTree == NULL);
	PX_ASSERT(tree.mUpdateMap == NULL);

	tree.mGlobalPose = transform;
	tree.mFlags = flags;

	// prepare the pruning pool
	PruningPool* pool = PX_PLACEMENT_NEW(PX_ALLOC(sizeof(PruningPool), PX_DEBUG_EXP("Pruning pool")), PruningPool);
	pool->preallocate(nbObjects);
	pool->addObjects(results, bvhStructure.getBounds(), userData, nbObjects);
	tree.mPruningPool = pool;

	// prepare update map
    UpdateMap* map = PX_PLACEMENT_NEW(PX_ALLOC(sizeof(UpdateMap), PX_DEBUG_EXP("Update map")), UpdateMap);
	map->resizeUninitialized(nbObjects);
	tree.mUpdateMap = map;

	IncrementalAABBTree* iTree = PX_NEW(IncrementalAABBTree)();
	iTree->copy(bvhStructure, *map);
	tree.mTree = iTree;

	return index;
}

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