eq::util::ObjectManager< T > Class Template Reference

A facility class to manage OpenGL objects across shared contexts. More...

#include <objectManager.h>

Inheritance diagram for eq::util::ObjectManager< T >:

Collaboration diagram for eq::util::ObjectManager< T >:

List of all members.

Classes
struct	Object
struct	SharedData
Public Member Functions
	ObjectManager (const GLEWContext *const glewContext)
	Construct a new object manager.
	ObjectManager (ObjectManager *shared)
	Construct a new object manager sharing data with another manager.
bool	isShared () const
void	deleteAll ()
GLuint	getList (const T &key) const
GLuint	newList (const T &key, const GLsizei num=1)
GLuint	obtainList (const T &key, const GLsizei num=1)
void	deleteList (const T &key)
GLuint	getTexture (const T &key) const
GLuint	newTexture (const T &key)
GLuint	obtainTexture (const T &key)
void	deleteTexture (const T &key)
bool	supportsBuffers () const
GLuint	getBuffer (const T &key) const
GLuint	newBuffer (const T &key)
GLuint	obtainBuffer (const T &key)
void	deleteBuffer (const T &key)
bool	supportsPrograms () const
GLuint	getProgram (const T &key) const
GLuint	newProgram (const T &key)
GLuint	obtainProgram (const T &key)
void	deleteProgram (const T &key)
bool	supportsShaders () const
GLuint	getShader (const T &key) const
GLuint	newShader (const T &key, const GLenum type)
GLuint	obtainShader (const T &key, const GLenum type)
void	deleteShader (const T &key)
Accum *	getEqAccum (const T &key) const
Accum *	newEqAccum (const T &key)
Accum *	obtainEqAccum (const T &key)
void	deleteEqAccum (const T &key)
bool	supportsEqTexture () const
Texture *	getEqTexture (const T &key) const
Texture *	newEqTexture (const T &key, const GLenum target)
Texture *	obtainEqTexture (const T &key, const GLenum target)
void	deleteEqTexture (const T &key)
bool	supportsEqFrameBufferObject () const
FrameBufferObject *	getEqFrameBufferObject (const T &key) const
FrameBufferObject *	newEqFrameBufferObject (const T &key)
FrameBufferObject *	obtainEqFrameBufferObject (const T &key)
void	deleteEqFrameBufferObject (const T &key)
util::BitmapFont< T > *	getEqBitmapFont (const T &key) const
util::BitmapFont< T > *	newEqBitmapFont (const T &key)
util::BitmapFont< T > *	obtainEqBitmapFont (const T &key)
void	deleteEqBitmapFont (const T &key)
const GLEWContext *	glewGetContext () const
Public Types
enum	{ INVALID = 0 }

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Detailed Description

template<class T>
class eq::util::ObjectManager< T >

A facility class to manage OpenGL objects across shared contexts.

The object manager implements object sharing in the same way as OpenGL. During creation, a shared object manager may be given, causing the two (or more) object managers to allocate objects from the same namespace. The last object manager will delete all data allocated on the host. OpenGL objects have to be explictly deleted using deleteAll() to ensure an OpenGL context is still current during destruction.

For each type of OpenGL object supported the following methods are available:

• supportsObject: Check if the necessary OpenGL version or extension is present
• getObject: Lookup an existing object, may return 0
• newObject: Allocate new object, returns false if key exists
• obtainObject: Lookup or allocate an object for the given key
• deleteObject: Delete the object of the given key and all associated OpenGL data

See also:

http://www.equalizergraphics.com/documents/design/objectManager.html

Definition at line 56 of file objectManager.h.

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Constructor & Destructor Documentation

template<class T>

eq::util::ObjectManager< T >::ObjectManager

(

const GLEWContext *const

glewContext

)

Construct a new object manager.

template<class T>

eq::util::ObjectManager< T >::ObjectManager

(

ObjectManager< T > *

shared

)

Construct a new object manager sharing data with another manager.

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Member Function Documentation

template<class T>

bool eq::util::ObjectManager< T >::isShared

(

)

const [inline]

Returns:

true if more than one OM is using the same data.

Definition at line 73 of file objectManager.h.

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

• objectManager.h