TGLContextIdentity Class Reference

Identifier of a shared GL-context.

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

Definition at line 80 of file TGLContext.h.

Public Member Functions
	TGLContextIdentity ()
	Constructor.
virtual	~TGLContextIdentity ()
	Destructor.
void	AddClientRef ()
void	AddRef (TGLContext *ctx)
	Add context ctx to the list of references.
void	DeleteGLResources ()
	Delete GL resources registered for destruction.
Int_t	GetClientRefCnt () const
TGLFontManager *	GetFontManager ()
	Get the free-type font-manager associated with this context-identity.
Int_t	GetRefCnt () const
Bool_t	IsValid () const
void	RegisterDLNameRangeToWipe (UInt_t base, Int_t size)
	Remember dl range for deletion in next MakeCurrent or dtor execution.
void	Release (TGLContext *ctx)
	Remove context ctx from the list of references.
void	ReleaseClient ()

Static Public Member Functions
static TGLContextIdentity *	GetCurrent ()
	Find identitfy of current context. Static.
static TGLContext *	GetDefaultContextAny ()
	Get the first GL context with the default identity.
static TGLContextIdentity *	GetDefaultIdentity ()
	Get identity of a default Gl context. Static.

Protected Attributes
TGLFontManager *	fFontManager

Private Types
typedef std::list< TGLContext * >	CtxList_t
typedef std::pair< UInt_t, Int_t >	DLRange_t
typedef std::list< DLRange_t >	DLTrash_t
typedef DLTrash_t::const_iterator	DLTrashIt_t

Private Member Functions
void	CheckDestroy ()
	Private function called when reference count is reduced.

Private Attributes
Int_t	fClientCnt
Int_t	fCnt
CtxList_t	fCtxs
DLTrash_t	fDLTrash

Static Private Attributes
static TGLContextIdentity *	fgDefaultIdentity = new TGLContextIdentity

#include <TGLContext.h>

Member Typedef Documentation

CtxList_t

typedef std::list<TGLContext*> TGLContextIdentity::CtxList_t

private

Definition at line 121 of file TGLContext.h.

DLRange_t

typedef std::pair<UInt_t, Int_t> TGLContextIdentity::DLRange_t

private

Definition at line 117 of file TGLContext.h.

DLTrash_t

typedef std::list<DLRange_t> TGLContextIdentity::DLTrash_t

private

Definition at line 118 of file TGLContext.h.

DLTrashIt_t

typedef DLTrash_t::const_iterator TGLContextIdentity::DLTrashIt_t

private

Definition at line 119 of file TGLContext.h.

Constructor & Destructor Documentation

TGLContextIdentity()

TGLContextIdentity::TGLContextIdentity

(

)

Constructor.

Definition at line 471 of file TGLContext.cxx.

~TGLContextIdentity()

TGLContextIdentity::~TGLContextIdentity ( )

virtual

Destructor.

Definition at line 479 of file TGLContext.cxx.

Member Function Documentation

AddClientRef()

void TGLContextIdentity::AddClientRef ( )

inline

Definition at line 93 of file TGLContext.h.

AddRef()

void TGLContextIdentity::AddRef

(

TGLContext *

ctx

)

Add context ctx to the list of references.

Definition at line 487 of file TGLContext.cxx.

CheckDestroy()

void TGLContextIdentity::CheckDestroy ( )

private

Private function called when reference count is reduced.

Definition at line 577 of file TGLContext.cxx.

DeleteGLResources()

void TGLContextIdentity::DeleteGLResources

(

)

Delete GL resources registered for destruction.

Definition at line 522 of file TGLContext.cxx.

GetClientRefCnt()

Int_t TGLContextIdentity::GetClientRefCnt ( ) const

inline

Definition at line 97 of file TGLContext.h.

GetCurrent()

TGLContextIdentity * TGLContextIdentity::GetCurrent ( )

static

Find identitfy of current context. Static.

Definition at line 538 of file TGLContext.cxx.

GetDefaultContextAny()

TGLContext * TGLContextIdentity::GetDefaultContextAny ( )

static

Get the first GL context with the default identity.

Can return zero, but that's OK, too. Static.

Definition at line 558 of file TGLContext.cxx.

GetDefaultIdentity()

TGLContextIdentity * TGLContextIdentity::GetDefaultIdentity ( )

static

Get identity of a default Gl context. Static.

Definition at line 547 of file TGLContext.cxx.

GetFontManager()

TGLFontManager * TGLContextIdentity::GetFontManager

(

)

Get the free-type font-manager associated with this context-identity.

Definition at line 568 of file TGLContext.cxx.

GetRefCnt()

Int_t TGLContextIdentity::GetRefCnt ( ) const

inline

Definition at line 96 of file TGLContext.h.

IsValid()

Bool_t TGLContextIdentity::IsValid ( ) const

inline

Definition at line 99 of file TGLContext.h.

RegisterDLNameRangeToWipe()

void TGLContextIdentity::RegisterDLNameRangeToWipe	(	UInt_t	base,
		Int_t	size
	)

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

Definition at line 514 of file TGLContext.cxx.

Release()

void TGLContextIdentity::Release

(

TGLContext *

ctx

)

Remove context ctx from the list of references.

Definition at line 496 of file TGLContext.cxx.

ReleaseClient()

void TGLContextIdentity::ReleaseClient ( )

inline

Definition at line 94 of file TGLContext.h.

Member Data Documentation

fClientCnt

Int_t TGLContextIdentity::fClientCnt

private

Definition at line 113 of file TGLContext.h.

fCnt

Int_t TGLContextIdentity::fCnt

private

Definition at line 112 of file TGLContext.h.

fCtxs

CtxList_t TGLContextIdentity::fCtxs

private

Definition at line 124 of file TGLContext.h.

fDLTrash

DLTrash_t TGLContextIdentity::fDLTrash

private

Definition at line 123 of file TGLContext.h.

fFontManager

TGLFontManager* TGLContextIdentity::fFontManager

protected

Definition at line 84 of file TGLContext.h.

fgDefaultIdentity

TGLContextIdentity * TGLContextIdentity::fgDefaultIdentity = new TGLContextIdentity

staticprivate

Definition at line 126 of file TGLContext.h.

Libraries for TGLContextIdentity:

---

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

• graf3d/gl/inc/TGLContext.h
• graf3d/gl/src/TGLContext.cxx