MirBSD manpage: glPopClientAttrib(3), glPushClientAttrib(3)



     glPushClientAttrib, glPopClientAttrib - push and pop the
     client attribute stack


     void glPushClientAttrib( GLbitfield mask);  1.1 )


     1.1  Specifies a mask that indicates which attributes to
          save.  Values for 1.1 are listed below.


     void glPopClientAttrib( void);  1.1 )


     glPushClientAttrib 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
     GL_CLIENT_ALL_ATTRIB_BITS 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 attri-
     butes are saved):

     GL_CLIENT_PIXEL_STORE_BIT     Pixel storage modes
     GL_CLIENT_VERTEX_ARRAY_BIT    Vertex arrays (and enables)

     glPopClientAttrib restores the values of the client-state
     variables saved with the last glPushClientAttrib. Those not
     saved are left unchanged.

     It is an error to push attributes onto a full client attri-
     bute 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.


     glPushClientAttrib 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 can-
     not be saved.

MirBSD #10-current     Printed 2021-12-07                       1


     The depth of the attribute stack depends on the implementa-
     tion, but it must be at least 16.

     Use glPushAttrib and glPopAttrib 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
     glPushClientAttrib and glPopClientAttrib.

     When the GL_ARB_multitexture extension is supported, pushing
     and popping client vertex array state apples to all sup-
     ported texture units, and the active client texture state.


     GL_STACK_OVERFLOW is generated if glPushClientAttrib is
     called while the attribute stack is full.

     GL_STACK_UNDERFLOW is generated if glPopClientAttrib is
     called while the attribute stack is empty.


     glGet with argument GL_ATTRIB_STACK_DEPTH
     glGet with argument GL_MAX_CLIENT_ATTRIB_STACK_DEPTH


     glColorPointer(3G), glDisableClientState(3G),
     glEdgeFlagPointer(3G), glEnableClientState(3G), glGet(3G),
     glGetError(3G), glIndexPointer(3G), glNormalPointer(3G),
     glNewList(3G), glPixelStore(3G), glPushAttrib(3G),
     glTexCoordPointer(3G), glVertexPointer(3G)

MirBSD #10-current     Printed 2021-12-07                       2

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