bool VisusIndexedData::getText(XMLNode& node, std::vector<std::vector<T > >* items, XMLDataStorage storageType)
{
int numItems = xmltoi(node.getAttribute("numItems"));
int bufsize = xmltoi(node.getAttribute("bufsize"));
unsigned char* buffer = new unsigned char[bufsize+1];
switch (storageType)
{
case BASE64:
{
// Retrieve data as BASE64
XMLParserBase64Tool base64;
base64.decode(node.getText(), buffer, bufsize);
}
break;
case EXTERNAL_FILE:
{
vwarning("saving data to external file is not yet supported");
return false;
}
break;
case ASCII:
{
vwarning("saving data to external file is not yet supported");
return false;
}
break;
}
// Ensure vector is appropriate size
if ((int)items->capacity() < numItems)
items->resize(numItems);
// Copy from contiguous buffer into non-contiguous data
int position = 0;
for (typename std::vector<std::vector<T> >::iterator iiter=items->begin();
iiter!=items->end(); ++iiter)
{
T value;
memcpy(&value, &buffer[position], sizeof(T));
position += sizeof(T);
// Ensure item that is vector is appropriate size
if ((int)iiter->capacity() < (long) value)
iiter->resize((long)value);
// Load up item that is vector
for (typename std::vector<T>::iterator idtIter=iiter->begin();
idtIter!=iiter->end(); ++idtIter)
{
vassert(position < bufsize);
memcpy(&(*idtIter), &buffer[position], sizeof(T));
position += sizeof(T);
}
}
vassert(position == bufsize);
delete [] buffer;
return true;
}
