NAME
glPushClientAttrib, glPopClientAttrib
- push and pop the client attribute stack
C SPECIFICATION
void ggllPPuusshhCClliieennttAAttttrriibb(
GLbitfield mask); _1_._1 )
PARAMETERS
-
_1_._1
-
Specifies a mask that indicates which attributes to save. Values for
_1_._1 are listed below.
C SPECIFICATION
void ggllPPooppCClliieennttAAttttrriibb(
void); _1_._1 )
DESCRIPTION
ggllPPuusshhCClliieennttAAttttrriibb takes one argument,
a mask that indicates which groups of client-state variables
to save on the client attribute stack.
Symbolic constants are used to set bits in the mask.
_1_._1
is typically constructed by OR'ing several of these constants together.
The special mask
GGLL__CCLLIIEENNTT__AALLLL__AATTTTRRIIBB__BBIITTSS
can be used to save all stackable client state.
The symbolic mask constants and their associated GL client state are as follows
(the second column lists which attributes are saved):
GGLL__CCLLIIEENNTT__PPIIXXEELL__SSTTOORREE__BBIITT Pixel storage modes
GGLL__CCLLIIEENNTT__VVEERRTTEEXX__AARRRRAAYY__BBIITT Vertex arrays (and enables)
ggllPPooppCClliieennttAAttttrriibb restores the values of the client-state variables
saved with the last ggllPPuusshhCClliieennttAAttttrriibb.
Those not saved are left unchanged.
It is an error to push attributes onto a full client attribute stack,
or to pop attributes off an empty stack.
In either case, the error flag is set,
and no other change is made to GL state.
Initially, the client attribute stack is empty.
NOTES
ggllPPuusshhCClliieennttAAttttrriibb is available only if the GL version is 1.1 or greater.
Not all values for GL client state can be saved on the attribute stack.
For example, select and feedback state cannot be saved.
The depth of the attribute stack depends on the implementation,
but it must be at least 16.
Use ggllPPuusshhAAttttrriibb and ggllPPooppAAttttrriibb to push and restore
state which is kept on the server. Only pixel storage modes and
vertex array state may be pushed and popped with
ggllPPuusshhCClliieennttAAttttrriibb and ggllPPooppCClliieennttAAttttrriibb.
When the GGLL__AARRBB__mmuullttiitteexxttuurree extension is supported, pushing and
popping client vertex array state apples to all supported texture units,
and the active client texture state.
ERRORS
GGLL__SSTTAACCKK__OOVVEERRFFLLOOWW is generated if ggllPPuusshhCClliieennttAAttttrriibb is called while
the attribute stack is full.
GGLL__SSTTAACCKK__UUNNDDEERRFFLLOOWW is generated if ggllPPooppCClliieennttAAttttrriibb is called while
the attribute stack is empty.
ASSOCIATED GETS
ggllGGeett with argument GGLL__AATTTTRRIIBB__SSTTAACCKK__DDEEPPTTHH
ggllGGeett with argument GGLL__MMAAXX__CCLLIIEENNTT__AATTTTRRIIBB__SSTTAACCKK__DDEEPPTTHH
SEE ALSO
ggllCCoolloorrPPooiinntteerr((33GG)),
ggllDDiissaabblleeCClliieennttSSttaattee((33GG)),
ggllEEddggeeFFllaaggPPooiinntteerr((33GG)),
ggllEEnnaabblleeCClliieennttSSttaattee((33GG)),
ggllGGeett((33GG)),
ggllGGeettEErrrroorr((33GG)),
ggllIInnddeexxPPooiinntteerr((33GG)),
ggllNNoorrmmaallPPooiinntteerr((33GG)),
ggllNNeewwLLiisstt((33GG)),
ggllPPiixxeellSSttoorree((33GG)),
ggllPPuusshhAAttttrriibb((33GG)),
ggllTTeexxCCoooorrddPPooiinntteerr((33GG)),
ggllVVeerrtteexxPPooiinntteerr((33GG))