Method loadChunk

deps/physx/physx/samples/samplelargeworld/ChunkLoader.cpp:902–965

}
	
PxCollection* BackgroundLoader::loadChunk(ChunkID id)
{   
	{
		shdfnd::Mutex::ScopedLock al(mCollectionLock);
		if(  mCollectionIdMap.find(id) != mCollectionIdMap.end() )
			return NULL;
	}

	const char* theBinPath = getPathname( id );	

	PxCollection* theCollection = NULL;
	void *theMemory = NULL;

	Ps::Time localTimer;
	
	SampleFramework::File* fp = NULL;
	PxToolkit::fopen_s(&fp, theBinPath, "rb");
	//If cannot find/deserilize the chunk file, create one collection
	if( !fp )
	{
		theCollection = PxCreateCollection();
		mSampleLargeWorld->createChunk( id.coord.x, id.coord.y, *theCollection );
	}
	else
	{
		localTimer.getElapsedSeconds();
		PxU32 fileSize = getFileSize(theBinPath);
		theMemory = malloc(fileSize + PX_SERIAL_FILE_ALIGN);

		void* theMemoryA = (void*)((size_t(theMemory) + PX_SERIAL_FILE_ALIGN)&~(PX_SERIAL_FILE_ALIGN-1));
		size_t numRead = fread(theMemoryA, 1, fileSize, fp);
		fclose(fp);
		
		mDiskIOTimeCounter += localTimer.getElapsedSeconds();
		if(numRead != fileSize)
		{ 
			free(theMemory); 
			theMemory = NULL; 
			return NULL;
		}
		
		PxCollection* theExtRef = PxCreateCollection();
		theExtRef->add(mMaterial, MATERIAL_ID);

		theCollection = PxSerialization::createCollectionFromBinary(theMemoryA, *mSr, theExtRef);

		theExtRef->release();

		mPhyXStreamTimeCounter += localTimer.getElapsedSeconds();

	}

	CollectionMemory temp;
	temp.collection = theCollection;
	temp.memory = theMemory;		
	temp.addToScene = false;
	
	{