-// SceneryPager.hxx -- Interface to OSG database pager
+// SceneryPager.cxx -- Interface to OSG database pager
//
// Copyright (C) 2007 Tim Moore timoore@redhat.com
//
# include <config.h>
#endif
-#include <simgear/scene/model/SGPagedLOD.hxx>
#include <simgear/math/SGMath.hxx>
#include "SceneryPager.hxx"
#include <algorithm>
{
_pagerRequests.reserve(48);
_deleteRequests.reserve(16);
- setExpiryDelay(120.0);
}
SceneryPager::SceneryPager(const SceneryPager& rhs) :
{
}
-void SceneryPager::requestNodeFile(const std::string& fileName, Group* group,
- float priority, const FrameStamp* framestamp,
- ref_ptr<Referenced>& databaseRequest,
-#if SG_OSG_MIN_VERSION_REQUIRED(2,9,5)
- const osg::Referenced* options
-#else
- osgDB::ReaderWriter::Options* options
-#endif
- )
-{
- simgear::SGPagedLOD *sgplod = dynamic_cast<simgear::SGPagedLOD*>(group);
- if(sgplod)
- DatabasePager::requestNodeFile(fileName, group, priority, framestamp,
- databaseRequest,
- sgplod->getReaderWriterOptions());
- else
- DatabasePager::requestNodeFile(fileName, group, priority, framestamp,
- databaseRequest,
- options);
-}
-
void SceneryPager::queueRequest(const std::string& fileName, Group* group,
float priority, FrameStamp* frameStamp,
ref_ptr<Referenced>& databaseRequest,
_deleteRequests.push_back(objptr);
objptr = 0;
}
+
+// Work around interface change in
+// osgDB::DatabasePager::requestNodeFile
+namespace
+{
+struct NodePathProxy
+{
+ NodePathProxy(NodePath& nodePath)
+ : _nodePath(nodePath)
+ {
+ }
+ operator Group* () { return static_cast<Group*>(_nodePath.back()); }
+ operator NodePath& () { return _nodePath; }
+ NodePath& _nodePath;
+};
+}
+
+void SceneryPager::PagerRequest::doRequest(SceneryPager* pager)
+{
+ if (_group->getNumChildren() == 0) {
+ NodePath path;
+ path.push_back(_group.get());
+ pager->requestNodeFile(_fileName, NodePathProxy(path), _priority,
+ _frameStamp.get(),
+ *_databaseRequest,
+ _options.get());
+ }
+}
+
void SceneryPager::signalEndFrame()
{
using namespace std;