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osgAL::SoundNode Class Reference

A placeholder for a soundstate. The transformation is updated automatically during update traversal. More...

Collaboration diagram for osgAL::SoundNode:

[legend]List of all members.

Public Methods
	SoundNode ()
	Default constructor. More...
	SoundNode (SoundState *sound_state)
	SoundNode (const SoundNode &copy, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
	Copy constructor. More...
virtual const char *	libraryName () const
virtual const char *	className () const
virtual bool	isSameKindAs (const osg::Object *obj) const
virtual void	accept (osg::NodeVisitor &nv)
void	setSoundState (SoundState *sound_state)
	Associates a soundstate with this SoundNode. More...
SoundState *	getSoundState ()
	Returns a reference to to the Soundstate associated with this SoundNode. More...
void	traverse (osg::NodeVisitor &nv)
	Updates the transformation of the SoundState during Cull traversal. More...
void	setOccludeCallback (OccludeCallback *cb)
OccludeCallback *	getOccludeCallback ()
Protected Methods
virtual	~SoundNode ()
	Destructor. More...
SoundNode &	operator= (const SoundNode &node)
	Assignment operator. More...
Protected Attributes
SoundState *	m_sound_state
Private Attributes
osg::ref_ptr< OccludeCallback >	m_occlude_callback
double	m_last_time
double	m_first_run
osg::Vec3	m_last_pos
int	m_last_traversal_number

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Detailed Description

A placeholder for a soundstate. The transformation is updated automatically during update traversal.

This class implements a scenegraph node has a SoundState associated to it. During cull traversal the orientation and position in world coordinates is calculated for this node and fed to the SoundSystem. This ensures that the node follows any transformation above this node.

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Constructor & Destructor Documentation

osgAL::SoundNode::SoundNode (    )

Default constructor.

osgAL::SoundNode::SoundNode (  SoundState *    sound_state )

Constructor that also associates a sound state to this node.

osgAL::SoundNode::SoundNode (  const SoundNode &    copy, const osg::CopyOp &    copyop = osg::CopyOp::SHALLOW_COPY )

Copy constructor.

virtual osgAL::SoundNode::~SoundNode (    )  [inline, protected, virtual]

Destructor.

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Member Function Documentation

virtual void osgAL::SoundNode::accept (  osg::NodeVisitor &    nv )  [inline, virtual]

virtual const char* osgAL::SoundNode::className (    )  const [inline, virtual]

OccludeCallback* osgAL::SoundNode::getOccludeCallback (    )  [inline]

SoundState* osgAL::SoundNode::getSoundState (    )  [inline]

Returns a reference to to the Soundstate associated with this SoundNode.

virtual bool osgAL::SoundNode::isSameKindAs (  const osg::Object *    obj )  const [inline, virtual]

virtual const char* osgAL::SoundNode::libraryName (    )  const [inline, virtual]

SoundNode& osgAL::SoundNode::operator= (  const SoundNode &    node )  [protected]

Assignment operator.

void osgAL::SoundNode::setOccludeCallback (  OccludeCallback *    cb )  [inline]

void osgAL::SoundNode::setSoundState (  SoundState *    sound_state )  [inline]

Associates a soundstate with this SoundNode.

void osgAL::SoundNode::traverse (  osg::NodeVisitor &    nv )

Updates the transformation of the SoundState during Cull traversal.

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Member Data Documentation

double osgAL::SoundNode::m_first_run [private]

osg::Vec3 osgAL::SoundNode::m_last_pos [private]

double osgAL::SoundNode::m_last_time [private]

int osgAL::SoundNode::m_last_traversal_number [private]

osg::ref_ptr<OccludeCallback> osgAL::SoundNode::m_occlude_callback [private]

SoundState* osgAL::SoundNode::m_sound_state [protected]

@Todo: The SoundState should be referenced with a ref_ptr, This currently causes problem, as the soundstate, and therefore any referenced soundsources are held, until this node is deleted. Which can be by OpenSceneGraph model cache. The time of this event can be late, outside the scope of main. This causes problems with OpenAL, which for some reason reports an invalid context during the deletion of that source. Therefore, just an ordinary pointer. Memory is properly deallocated by the SoundManager, so its not really a problem.

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

• SoundNode

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