OpenSceneGraph  3.0.1
Classes | Public Member Functions | Protected Types | Protected Member Functions | Protected Attributes | Friends | List of all members
osgDB::ImagePager Class Reference
Inheritance diagram for osgDB::ImagePager:
Inheritance graph
[legend]

Classes

struct  ImageRequest
class  ImageThread
struct  ReadQueue
struct  RequestQueue

Public Member Functions

 ImagePager ()
ImageThreadgetImageThread (unsigned int i)
const ImageThreadgetImageThread (unsigned int i) const
unsigned int getNumImageThreads () const
void setPreLoadTime (double preLoadTime)
virtual double getPreLoadTime () const
virtual osg::ImagereadImageFile (const std::string &fileName)
virtual void requestImageFile (const std::string &fileName, osg::Object *attachmentPoint, int attachmentIndex, double timeToMergeBy, const osg::FrameStamp *framestamp)
virtual bool requiresUpdateSceneGraph () const
 Return true if there are pending updates to the scene graph that require a call to updateSceneGraph(double).
virtual void updateSceneGraph (const osg::FrameStamp &frameStamp)
 Merge the changes to the scene graph.
int cancel ()
- Public Member Functions inherited from osg::NodeVisitor::ImageRequestHandler
 ImageRequestHandler ()
- 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.
bool getThreadSafeRefUnref () const
 Get whether a mutex is used to ensure ref() and unref() are thread safe.
OpenThreads::Mutex * getRefMutex () const
 Get the mutex used to ensure thread safety of ref()/unref().
int ref () const
 Increment the reference count by one, indicating that this object has another pointer which is referencing it.
int unref () const
 Decrement the reference count by one, indicating that a pointer to this object is referencing it.
int unref_nodelete () const
 Decrement the reference count by one, indicating that a pointer to this object is referencing it.
int referenceCount () const
 Return the number of pointers currently referencing this object.
ObserverSetgetObserverSet () const
 Get the ObserverSet if one is attached, otherwise return NULL.
ObserverSetgetOrCreateObserverSet () const
 Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet.
void addObserver (Observer *observer) const
 Add a Observer that is observing this object, notify the Observer when this object gets deleted.
void removeObserver (Observer *observer) const
 Remove Observer that is observing this object.

Protected Types

typedef std::vector
< osg::ref_ptr< ImageThread > > 
ImageThreads

Protected Member Functions

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

Protected Attributes

OpenThreads::Mutex _run_mutex
bool _startThreadCalled
bool _done
bool _databasePagerThreadPaused
osg::ref_ptr< ReadQueue_readQueue
ImageThreads _imageThreads
osg::ref_ptr< RequestQueue_completedQueue
double _preLoadTime

Friends

struct SortFileRequestFunctor

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.
static void setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
 Set whether reference counting should use a mutex for thread safe reference counting.
static bool getThreadSafeReferenceCounting ()
 Get whether reference counting is active.
static void setDeleteHandler (DeleteHandler *handler)
 Set a DeleteHandler to which deletion of all referenced counted objects will be delegated.
static DeleteHandlergetDeleteHandler ()
 Get a DeleteHandler.

Member Typedef Documentation

typedef std::vector< osg::ref_ptr<ImageThread> > osgDB::ImagePager::ImageThreads
protected

Constructor & Destructor Documentation

osgDB::ImagePager::ImagePager ( )
virtual osgDB::ImagePager::~ImagePager ( )
protectedvirtual

Member Function Documentation

int osgDB::ImagePager::cancel ( )
ImageThread* osgDB::ImagePager::getImageThread ( unsigned int  i)
inline
const ImageThread* osgDB::ImagePager::getImageThread ( unsigned int  i) const
inline
unsigned int osgDB::ImagePager::getNumImageThreads ( ) const
inline
virtual double osgDB::ImagePager::getPreLoadTime ( ) const
inlinevirtual
virtual osg::Image* osgDB::ImagePager::readImageFile ( const std::string &  fileName)
virtual
virtual void osgDB::ImagePager::requestImageFile ( const std::string &  fileName,
osg::Object attachmentPoint,
int  attachmentIndex,
double  timeToMergeBy,
const osg::FrameStamp framestamp 
)
virtual
virtual bool osgDB::ImagePager::requiresUpdateSceneGraph ( ) const
virtual

Return true if there are pending updates to the scene graph that require a call to updateSceneGraph(double).

void osgDB::ImagePager::setPreLoadTime ( double  preLoadTime)
inline
virtual void osgDB::ImagePager::updateSceneGraph ( const osg::FrameStamp frameStamp)
virtual

Merge the changes to the scene graph.

Friends And Related Function Documentation

friend struct SortFileRequestFunctor
friend

Member Data Documentation

osg::ref_ptr<RequestQueue> osgDB::ImagePager::_completedQueue
protected
bool osgDB::ImagePager::_databasePagerThreadPaused
protected
bool osgDB::ImagePager::_done
protected
ImageThreads osgDB::ImagePager::_imageThreads
protected
double osgDB::ImagePager::_preLoadTime
protected
osg::ref_ptr<ReadQueue> osgDB::ImagePager::_readQueue
protected
OpenThreads::Mutex osgDB::ImagePager::_run_mutex
protected
bool osgDB::ImagePager::_startThreadCalled
protected

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

osg logo
Generated at Tue Sep 4 2012 16:27:09 for the OpenSceneGraph by doxygen 1.8.1.2.