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osg::NodeVisitor::ImageRequestHandler Class Referenceabstract

Callback for managing image paging, such as generated by PagedLOD nodes. More...

Inheritance diagram for osg::NodeVisitor::ImageRequestHandler:
Inheritance graph
[legend]

Public Member Functions

 ImageRequestHandler ()
 
virtual double getPreLoadTime () const =0
 
virtual osg::ImagereadImageFile (const std::string &fileName, const osg::Referenced *options=0)=0
 
virtual void requestImageFile (const std::string &fileName, osg::Object *attachmentPoint, int attachmentIndex, double timeToMergeBy, const FrameStamp *framestamp, osg::ref_ptr< osg::Referenced > &imageRequest, const osg::Referenced *options=0)=0
 
- Public Member Functions inherited from osg::Referenced
 Referenced ()
 
 Referenced (bool threadSafeRefUnref)
 
 Referenced (const Referenced &)
 
Referencedoperator= (const Referenced &)
 
virtual void setThreadSafeRefUnref (bool threadSafe)
 Set whether to use a mutex to ensure ref() and unref() are thread safe. More...
 
bool getThreadSafeRefUnref () const
 Get whether a mutex is used to ensure ref() and unref() are thread safe. More...
 
OpenThreads::Mutex * getRefMutex () const
 Get the mutex used to ensure thread safety of ref()/unref(). More...
 
int ref () const
 Increment the reference count by one, indicating that this object has another pointer which is referencing it. More...
 
int unref () const
 Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...
 
int unref_nodelete () const
 Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...
 
int referenceCount () const
 Return the number of pointers currently referencing this object. More...
 
ObserverSetgetObserverSet () const
 Get the ObserverSet if one is attached, otherwise return NULL. More...
 
ObserverSetgetOrCreateObserverSet () const
 Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet. More...
 
void addObserver (Observer *observer) const
 Add a Observer that is observing this object, notify the Observer when this object gets deleted. More...
 
void removeObserver (Observer *observer) const
 Remove Observer that is observing this object. More...
 

Protected Member Functions

virtual ~ImageRequestHandler ()
 
- Protected Member Functions inherited from osg::Referenced
virtual ~Referenced ()
 
void signalObserversAndDelete (bool signalDelete, bool doDelete) const
 
void deleteUsingDeleteHandler () const
 

Additional Inherited Members

- Static Public Member Functions inherited from osg::Referenced
static OpenThreads::Mutex * getGlobalReferencedMutex ()
 Get the optional global Referenced mutex, this can be shared between all osg::Referenced. More...
 
static void setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
 Set whether reference counting should use a mutex for thread safe reference counting. More...
 
static bool getThreadSafeReferenceCounting ()
 Get whether reference counting is active. More...
 
static void setDeleteHandler (DeleteHandler *handler)
 Set a DeleteHandler to which deletion of all referenced counted objects will be delegated. More...
 
static DeleteHandlergetDeleteHandler ()
 Get a DeleteHandler. More...
 
- Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr _observerSet
 
OpenThreads::Atomic _refCount
 

Detailed Description

Callback for managing image paging, such as generated by PagedLOD nodes.

Constructor & Destructor Documentation

osg::NodeVisitor::ImageRequestHandler::ImageRequestHandler ( )
inline
virtual osg::NodeVisitor::ImageRequestHandler::~ImageRequestHandler ( )
inlineprotectedvirtual

Member Function Documentation

virtual double osg::NodeVisitor::ImageRequestHandler::getPreLoadTime ( ) const
pure virtual

Implemented in osgDB::ImagePager.

virtual osg::Image* osg::NodeVisitor::ImageRequestHandler::readImageFile ( const std::string &  fileName,
const osg::Referenced options = 0 
)
pure virtual

Implemented in osgDB::ImagePager.

virtual void osg::NodeVisitor::ImageRequestHandler::requestImageFile ( const std::string &  fileName,
osg::Object attachmentPoint,
int  attachmentIndex,
double  timeToMergeBy,
const FrameStamp framestamp,
osg::ref_ptr< osg::Referenced > &  imageRequest,
const osg::Referenced options = 0 
)
pure virtual

Implemented in osgDB::ImagePager.


The documentation for this class was generated from the following file:

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Generated at Tue Apr 26 2016 22:47:24 for the OpenSceneGraph by doxygen 1.8.6.