NAME
fglNewList, fglEndList - create or replace a display list
FORTRAN SPECIFICATION
SUBROUTINE fglNewList( INTEGER*4 list,
INTEGER*4 mode )
PARAMETERS
list Specifies the display-list name.
mode Specifies the compilation mode, which can be
GL_COMPILE or GL_COMPILE_AND_EXECUTE.
FORTRAN SPECIFICATION
SUBROUTINE fglEndList( )
DESCRIPTION
Display lists are groups of GL commands that have been
stored for subsequent execution. Display lists are created
with fglNewList. All subsequent commands are placed in the
display list, in the order issued, until fglEndList is
called.
fglNewList has two arguments. The first argument, list, is
a positive integer that becomes the unique name for the
display list. Names can be created and reserved with
fglGenLists and tested for uniqueness with fglIsList. The
second argument, mode, is a symbolic constant that can
assume one of two values:
GL_COMPILE Commands are merely compiled.
GL_COMPILE_AND_EXECUTE Commands are executed as they
are compiled into the display
list.
Certain commands are not compiled into the display list but
are executed immediately, regardless of the display-list
mode. These commands are fglColorPointer, fglDeleteLists,
fglDisableClientState, fglEdgeFlagPointer,
fglEnableClientState, fglFeedbackBuffer, fglFinish,
fglFlush, fglGenLists, fglIndexPointer,
fglInterleavedArrays, fglIsEnabled, fglIsList,
fglNormalPointer, fglPopClientAttrib, fglPixelStore,
fglPushClientAttrib, fglReadPixels, fglRenderMode,
fglSelectBuffer, fglTexCoordPointer, fglVertexPointer, and
all of the fglGet commands.
Similarly, fglTexImage2D and fglTexImage1D are executed
immediately and not compiled into the display list when
their first argument is GL_PROXY_TEXTURE_2D or
GL_PROXY_TEXTURE_1D, respectively.
When fglEndList is encountered, the display-list definition
is completed by associating the list with the unique name
list (specified in the fglNewList command). If a display
list with name list already exists, it is replaced only when
fglEndList is called.
NOTES
fglCallList and fglCallLists can be entered into display
lists. Commands in the display list or lists executed by
fglCallList or fglCallLists are not included in the display
list being created, even if the list creation mode is
GL_COMPILE_AND_EXECUTE.
A display list is just a group of commands and arguments, so
errors generated by commands in a display list must be
generated when the list is executed. If the list is created
in GL_COMPILE mode, errors are not generated until the list
is executed.
ERRORS
GL_INVALID_VALUE is generated if list is 0.
GL_INVALID_ENUM is generated if mode is not an accepted
value.
GL_INVALID_OPERATION is generated if fglEndList is called
without a preceding fglNewList, or if fglNewList is called
while a display list is being defined.
GL_INVALID_OPERATION is generated if fglNewList or
fglEndList is executed between the execution of fglBegin and
the corresponding execution of fglEnd.
GL_OUT_OF_MEMORY is generated if there is insufficient
memory to compile the display list. If the GL version is 1.1
or greater, no change is made to the previous contents of
the display list, if any, and no other change is made to the
GL state. (It is as if no attempt had been made to create
the new display list.)
ASSOCIATED GETS
fglIsList
fglGet with argument GL_LIST_INDEX
fglGet with argument GL_LIST_MODE
SEE ALSO
fglCallList, fglCallLists, fglDeleteLists, fglGenLists