int ModelItem::readModelDataFromBuffer(const unsigned char* data, int bytesLeftToRead, ReadBitstreamToTreeParams& args) {
int bytesRead = 0;
if (bytesLeftToRead >= expectedBytes()) {
int clockSkew = args.sourceNode ? args.sourceNode->getClockSkewUsec() : 0;
const unsigned char* dataAt = data;
// id
memcpy(&_id, dataAt, sizeof(_id));
dataAt += sizeof(_id);
bytesRead += sizeof(_id);
// _lastUpdated
memcpy(&_lastUpdated, dataAt, sizeof(_lastUpdated));
dataAt += sizeof(_lastUpdated);
bytesRead += sizeof(_lastUpdated);
_lastUpdated -= clockSkew;
// _lastEdited
memcpy(&_lastEdited, dataAt, sizeof(_lastEdited));
dataAt += sizeof(_lastEdited);
bytesRead += sizeof(_lastEdited);
_lastEdited -= clockSkew;
// radius
memcpy(&_radius, dataAt, sizeof(_radius));
dataAt += sizeof(_radius);
bytesRead += sizeof(_radius);
// position
memcpy(&_position, dataAt, sizeof(_position));
dataAt += sizeof(_position);
bytesRead += sizeof(_position);
// color
memcpy(_color, dataAt, sizeof(_color));
dataAt += sizeof(_color);
bytesRead += sizeof(_color);
// shouldDie
memcpy(&_shouldDie, dataAt, sizeof(_shouldDie));
dataAt += sizeof(_shouldDie);
bytesRead += sizeof(_shouldDie);
// modelURL
uint16_t modelURLLength;
memcpy(&modelURLLength, dataAt, sizeof(modelURLLength));
dataAt += sizeof(modelURLLength);
bytesRead += sizeof(modelURLLength);
QString modelURLString((const char*)dataAt);
setModelURL(modelURLString);
dataAt += modelURLLength;
bytesRead += modelURLLength;
// modelRotation
int bytes = unpackOrientationQuatFromBytes(dataAt, _modelRotation);
dataAt += bytes;
bytesRead += bytes;
if (args.bitstreamVersion >= VERSION_MODELS_HAVE_ANIMATION) {
// animationURL
uint16_t animationURLLength;
memcpy(&animationURLLength, dataAt, sizeof(animationURLLength));
dataAt += sizeof(animationURLLength);
bytesRead += sizeof(animationURLLength);
QString animationURLString((const char*)dataAt);
setAnimationURL(animationURLString);
dataAt += animationURLLength;
bytesRead += animationURLLength;
// animationIsPlaying
memcpy(&_animationIsPlaying, dataAt, sizeof(_animationIsPlaying));
dataAt += sizeof(_animationIsPlaying);
bytesRead += sizeof(_animationIsPlaying);
// animationFrameIndex
memcpy(&_animationFrameIndex, dataAt, sizeof(_animationFrameIndex));
dataAt += sizeof(_animationFrameIndex);
bytesRead += sizeof(_animationFrameIndex);
// animationFPS
memcpy(&_animationFPS, dataAt, sizeof(_animationFPS));
dataAt += sizeof(_animationFPS);
bytesRead += sizeof(_animationFPS);
}
}
return bytesRead;
}
int ModelEntityItem::oldVersionReadEntityDataFromBuffer(const unsigned char* data, int bytesLeftToRead, ReadBitstreamToTreeParams& args) {
int bytesRead = 0;
if (bytesLeftToRead >= expectedBytes()) {
int clockSkew = args.sourceNode ? args.sourceNode->getClockSkewUsec() : 0;
const unsigned char* dataAt = data;
// id
// this old bitstream format had 32bit IDs. They are obsolete and need to be replaced with our new UUID
// format. We can simply read and ignore the old ID since they should not be repeated. This code should only
// run on loading from an old file.
quint32 oldID;
memcpy(&oldID, dataAt, sizeof(oldID));
dataAt += sizeof(oldID);
bytesRead += sizeof(oldID);
_id = QUuid::createUuid();
// _lastUpdated
memcpy(&_lastUpdated, dataAt, sizeof(_lastUpdated));
dataAt += sizeof(_lastUpdated);
bytesRead += sizeof(_lastUpdated);
_lastUpdated -= clockSkew;
// _lastEdited
memcpy(&_lastEdited, dataAt, sizeof(_lastEdited));
dataAt += sizeof(_lastEdited);
bytesRead += sizeof(_lastEdited);
_lastEdited -= clockSkew;
_created = _lastEdited; // NOTE: old models didn't have age or created time, assume their last edit was a create
QString ageAsString = formatSecondsElapsed(getAge());
qDebug() << "Loading old model file, _created = _lastEdited =" << _created
<< " age=" << getAge() << "seconds - " << ageAsString
<< "old ID=" << oldID << "new ID=" << _id;
// radius
float radius;
memcpy(&radius, dataAt, sizeof(radius));
dataAt += sizeof(radius);
bytesRead += sizeof(radius);
setRadius(radius);
// position
memcpy(&_position, dataAt, sizeof(_position));
dataAt += sizeof(_position);
bytesRead += sizeof(_position);
// color
memcpy(&_color, dataAt, sizeof(_color));
dataAt += sizeof(_color);
bytesRead += sizeof(_color);
// TODO: how to handle this? Presumable, this would only ever be true if the model file was saved with
// a model being in a shouldBeDeleted state. Which seems unlikely. But if it happens, maybe we should delete the entity after loading?
// shouldBeDeleted
bool shouldBeDeleted = false;
memcpy(&shouldBeDeleted, dataAt, sizeof(shouldBeDeleted));
dataAt += sizeof(shouldBeDeleted);
bytesRead += sizeof(shouldBeDeleted);
if (shouldBeDeleted) {
qDebug() << "UNEXPECTED - read shouldBeDeleted=TRUE from an old format file";
}
// modelURL
uint16_t modelURLLength;
memcpy(&modelURLLength, dataAt, sizeof(modelURLLength));
dataAt += sizeof(modelURLLength);
bytesRead += sizeof(modelURLLength);
QString modelURLString((const char*)dataAt);
setModelURL(modelURLString);
dataAt += modelURLLength;
bytesRead += modelURLLength;
// rotation
int bytes = unpackOrientationQuatFromBytes(dataAt, _rotation);
dataAt += bytes;
bytesRead += bytes;
if (args.bitstreamVersion >= VERSION_ENTITIES_HAVE_ANIMATION) {
// animationURL
uint16_t animationURLLength;
memcpy(&animationURLLength, dataAt, sizeof(animationURLLength));
dataAt += sizeof(animationURLLength);
bytesRead += sizeof(animationURLLength);
QString animationURLString((const char*)dataAt);
setAnimationURL(animationURLString);
dataAt += animationURLLength;
bytesRead += animationURLLength;
// animationIsPlaying
bool animationIsPlaying;
memcpy(&animationIsPlaying, dataAt, sizeof(animationIsPlaying));
dataAt += sizeof(animationIsPlaying);
bytesRead += sizeof(animationIsPlaying);
setAnimationIsPlaying(animationIsPlaying);
// animationFrameIndex
float animationFrameIndex;
memcpy(&animationFrameIndex, dataAt, sizeof(animationFrameIndex));
dataAt += sizeof(animationFrameIndex);
bytesRead += sizeof(animationFrameIndex);
setAnimationFrameIndex(animationFrameIndex);
// animationFPS
float animationFPS;
memcpy(&animationFPS, dataAt, sizeof(animationFPS));
dataAt += sizeof(animationFPS);
bytesRead += sizeof(animationFPS);
setAnimationFPS(animationFPS);
}
}
return bytesRead;
}
