FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added support for priority offset and scale into PagedLOD.

Browse Source
This commit is contained in:
Robert Osfield
2004-01-05 20:45:28 +00:00
parent 50a7fc16af
commit 413064fc6e
10 changed files with 137 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
src/osg/PagedLOD.cpp
View File

@@ -13,8 +13,7 @@ PagedLOD::PagedLOD(const PagedLOD& plod,const CopyOp& copyop):
LOD(plod,copyop),
_radius(plod._radius),
_numChildrenThatCannotBeExpired(plod._numChildrenThatCannotBeExpired),
_fileNameList(plod._fileNameList),
_timeStampList(plod._timeStampList)
_perRangeDataList(plod._perRangeDataList)
{
}
@@ -42,7 +41,7 @@ void PagedLOD::traverse(NodeVisitor& nv)
{
if (i<_children.size())
{
if (updateTimeStamp) _timeStampList[i]=timeStamp;
if (updateTimeStamp) _perRangeDataList[i]._timeStamp=timeStamp;
//std::cout<<"PagedLOD::traverse() - Selecting child "<<i<<std::endl;
_children[i]->accept(nv);
@@ -64,16 +63,16 @@ void PagedLOD::traverse(NodeVisitor& nv)
if (numChildren>0 && ((int)numChildren-1)!=lastChildTraversed)
{
//std::cout<<" to child "<<numChildren-1<<std::endl;
if (updateTimeStamp) _timeStampList[numChildren-1]=timeStamp;
if (updateTimeStamp) _perRangeDataList[numChildren-1]._timeStamp=timeStamp;
_children[numChildren-1]->accept(nv);
}
// now request the loading of the next unload child.
if (nv.getDatabaseRequestHandler() && numChildren<_fileNameList.size())
if (nv.getDatabaseRequestHandler() && numChildren<_perRangeDataList.size())
{
float priority = (_rangeList[numChildren].second-distance)/(_rangeList[numChildren].second-_rangeList[numChildren].first);
//std::cout<<" requesting child "<<_fileNameList[numChildren]<<" priotity = "<<priority<<std::endl;
nv.getDatabaseRequestHandler()->requestNodeFile(_fileNameList[numChildren],this,priority,nv.getFrameStamp());
nv.getDatabaseRequestHandler()->requestNodeFile(_perRangeDataList[numChildren]._filename,this,priority,nv.getFrameStamp());
}
@@ -103,12 +102,41 @@ bool PagedLOD::computeBound() const
}
}
void PagedLOD::childRemoved(unsigned int pos, unsigned int numChildrenToRemove)
{
LOD::childRemoved(pos, numChildrenToRemove);
//std::cout<<"PagedLOD::childRemoved("<<pos<<","<<numChildrenToRemove<<")"<<std::endl;
}
void PagedLOD::childInserted(unsigned int pos)
{
LOD::childInserted(pos);
//std::cout<<"PagedLOD::childInserted("<<pos<<")"<<std::endl;
}
void PagedLOD::rangeRemoved(unsigned int pos, unsigned int numChildrenToRemove)
{
LOD::rangeRemoved(pos, numChildrenToRemove);
std::cout<<"PagedLOD::rangeRemoved("<<pos<<","<<numChildrenToRemove<<")"<<std::endl;
}
void PagedLOD::rangeInserted(unsigned int pos)
{
LOD::rangeInserted(pos);
std::cout<<"PagedLOD::rangeInserted("<<pos<<")"<<std::endl;
expandPerRangeDataTo(pos);
}
void PagedLOD::expandPerRangeDataTo(unsigned int pos)
{
if (pos>=_perRangeDataList.size()) _perRangeDataList.resize(pos+1);
}
bool PagedLOD::addChild( Node *child )
{
if (LOD::addChild(child))
{
if (_children.size()>_fileNameList.size()) _fileNameList.resize(_children.size());
if (_children.size()>_timeStampList.size()) _timeStampList.resize(_children.size(),0);
expandPerRangeDataTo(_children.size());
return true;
}
return false;
@@ -118,24 +146,20 @@ bool PagedLOD::addChild(Node *child, float min, float max)
{
if (LOD::addChild(child,min,max))
{
if (_children.size()>_fileNameList.size()) _fileNameList.resize(_children.size());
if (_children.size()>_timeStampList.size()) _timeStampList.resize(_children.size(),0.0);
expandPerRangeDataTo(_children.size());
return true;
}
return false;
}
bool PagedLOD::addChild(Node *child, float min, float max,const std::string& filename)
bool PagedLOD::addChild(Node *child, float min, float max,const std::string& filename, float priorityOffset, float priorityScale)
{
if (LOD::addChild(child,min,max))
{
if (_children.size()>_fileNameList.size()) _fileNameList.resize(_children.size());
if (_children.size()>_timeStampList.size()) _timeStampList.resize(_children.size(),0.0);
_fileNameList[_children.size()-1] = filename;
setFileName(_children.size()-1,filename);
setPriorityOffset(_children.size()-1,priorityOffset);
setPriorityScale(_children.size()-1,priorityScale);
return true;
}
return false;
@@ -147,31 +171,18 @@ bool PagedLOD::removeChild( Node *child )
unsigned int pos=getChildIndex(child);
if (pos==_children.size()) return false;
_rangeList.erase(_rangeList.begin()+pos);
_fileNameList.erase(_fileNameList.begin()+pos);
_timeStampList.erase(_timeStampList.begin()+pos);
if (pos<_rangeList.size()) _rangeList.erase(_rangeList.begin()+pos);
if (pos<_perRangeDataList.size()) _perRangeDataList.erase(_perRangeDataList.begin()+pos);
return Group::removeChild(child);
}
void PagedLOD::setFileName(unsigned int childNo, const std::string& filename)
{
if (childNo>=_fileNameList.size()) _fileNameList.resize(childNo+1);
_fileNameList[childNo] = filename;
}
void PagedLOD::setTimeStamp(unsigned int childNo, double timeStamp)
{
if (childNo>=_timeStampList.size()) _timeStampList.resize(childNo+1,0.0);
_timeStampList[childNo] = timeStamp;
}
void PagedLOD::removeExpiredChildren(double expiryTime,NodeList& removedChildren)
{
for(unsigned int i=_children.size();i>_numChildrenThatCannotBeExpired;)
{
--i;
if (!_fileNameList[i].empty() && _timeStampList[i]<expiryTime)
if (!_perRangeDataList[i]._filename.empty() && _perRangeDataList[i]._timeStamp<expiryTime)
{
//std::cout<<"Removing child "<<_children[i].get()<<std::endl;
removedChildren.push_back(_children[i]);