class TGLContextIdentity


 Identifier of a shared GL-context.
 Objects shared among GL-contexts include:
 display-list definitions, texture objects and shader programs.

Function Members (Methods)

public:

	TGLContextIdentity()
	TGLContextIdentity(const TGLContextIdentity&)
virtual	~TGLContextIdentity()
void	AddClientRef()
void	AddRef(TGLContext* ctx)
static TClass*	Class()
void	DeleteDisplayLists()
Int_t	GetClientRefCnt() const
static TGLContextIdentity*	GetCurrent()
static TGLContext*	GetDefaultContextAny()
static TGLContextIdentity*	GetDefaultIdentity()
Int_t	GetRefCnt() const
virtual TClass*	IsA() const
Bool_t	IsValid() const
TGLContextIdentity&	operator=(const TGLContextIdentity&)
void	RegisterDLNameRangeToWipe(UInt_t base, Int_t size)
void	Release(TGLContext* ctx)
void	ReleaseClient()
virtual void	ShowMembers(TMemberInspector& insp, char* parent)
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)

private:

void	CheckDestroy()

Data Members

private:

Int_t	fClientCnt
Int_t	fCnt
list<TGLContext,allocator<TGLContext> >	fCtxs
list<pair<unsigned int,int>,allocator<pair<unsigned int,int> > >	fDLTrash
static TGLContextIdentity*	fgDefaultIdentity

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

void AddRef(TGLContext* ctx)

Add context ctx to the list of references.

void Release(TGLContext* ctx)

Remove context ctx from the list of references.

void RegisterDLNameRangeToWipe(UInt_t base, Int_t size)

Remember dl range for deletion in next MakeCurrent or dtor execution.

void DeleteDisplayLists()

Delete display-list objects registered for destruction.

TGLContextIdentity* GetCurrent()

Find identitfy of current context. Static.

TGLContextIdentity* GetDefaultIdentity()

Get identity of a default Gl context. Static.

TGLContext* GetDefaultContextAny()

Get the first GL context with the default identity.
Can return zero, but that's OK, too. Static.

void CheckDestroy()

Private function called when reference count is reduced.

Bool_t IsValid()

TGLContextIdentity(const TGLContextIdentity& )

{}

virtual ~TGLContextIdentity()

{}

void AddClientRef()

{ ++fClientCnt; }

void ReleaseClient()

{ --fClientCnt; CheckDestroy(); }

Int_t GetRefCnt()

{ return fCnt; }

Int_t GetClientRefCnt()

{ return fClientCnt; }

Author: Timur Pocheptsov, Jun 2007
Last update: root/gl:$Id: TGLContext.h 21453 2007-12-18 15:18:30Z matevz $
Copyright (C) 1995-2004, Rene Brun and Fons Rademakers. *

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