int ModelTreeElement::readElementDataFromBuffer(const unsigned char* data, int bytesLeftToRead,
ReadBitstreamToTreeParams& args) {
const unsigned char* dataAt = data;
int bytesRead = 0;
uint16_t numberOfModels = 0;
int expectedBytesPerModel = ModelItem::expectedBytes();
if (bytesLeftToRead >= (int)sizeof(numberOfModels)) {
// read our models in....
numberOfModels = *(uint16_t*)dataAt;
dataAt += sizeof(numberOfModels);
bytesLeftToRead -= (int)sizeof(numberOfModels);
bytesRead += sizeof(numberOfModels);
if (bytesLeftToRead >= (int)(numberOfModels * expectedBytesPerModel)) {
for (uint16_t i = 0; i < numberOfModels; i++) {
ModelItem tempModel;
int bytesForThisModel = tempModel.readModelDataFromBuffer(dataAt, bytesLeftToRead, args);
_myTree->storeModel(tempModel);
dataAt += bytesForThisModel;
bytesLeftToRead -= bytesForThisModel;
bytesRead += bytesForThisModel;
}
}
}
return bytesRead;
}
int ModelTreeElement::readElementDataFromBuffer(const unsigned char* data, int bytesLeftToRead,
ReadBitstreamToTreeParams& args) {
// If we're the root, but this bitstream doesn't support root elements with data, then
// return without reading any bytes
if (this == _myTree->getRoot() && args.bitstreamVersion < VERSION_ROOT_ELEMENT_HAS_DATA) {
qDebug() << "ROOT ELEMENT: no root data for "
"bitstreamVersion=" << (int)args.bitstreamVersion << " bytesLeftToRead=" << bytesLeftToRead;
return 0;
}
const unsigned char* dataAt = data;
int bytesRead = 0;
uint16_t numberOfModels = 0;
int expectedBytesPerModel = ModelItem::expectedBytes();
if (bytesLeftToRead >= (int)sizeof(numberOfModels)) {
// read our models in....
numberOfModels = *(uint16_t*)dataAt;
dataAt += sizeof(numberOfModels);
bytesLeftToRead -= (int)sizeof(numberOfModels);
bytesRead += sizeof(numberOfModels);
if (bytesLeftToRead >= (int)(numberOfModels * expectedBytesPerModel)) {
for (uint16_t i = 0; i < numberOfModels; i++) {
ModelItem tempModel;
int bytesForThisModel = tempModel.readModelDataFromBuffer(dataAt, bytesLeftToRead, args);
_myTree->storeModel(tempModel);
dataAt += bytesForThisModel;
bytesLeftToRead -= bytesForThisModel;
bytesRead += bytesForThisModel;
}
}
}
return bytesRead;
}