glNewList — create or replace a display list
void glNewList( | GLuint | list, |
GLenum | mode) ; |
list
Specifies the display-list name.
mode
Specifies the compilation mode,
which can be
GL_COMPILE
or
GL_COMPILE_AND_EXECUTE
.
void glEndList( | void) ; |
Display lists are groups of GL commands that have been stored
for subsequent execution.
Display lists are created with glNewList
.
All subsequent commands are placed in the display list,
in the order issued,
until glEndList is called.
glNewList
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 glGenLists
and tested for uniqueness with glIsList.
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 glAreTexturesResident, glColorPointer, glDeleteLists, glDeleteTextures, glDisableClientState, glEdgeFlagPointer, glEnableClientState, glFeedbackBuffer, glFinish, glFlush, glGenLists, glGenTextures, glIndexPointer, glInterleavedArrays, glIsEnabled, glIsList, glIsTexture, glNormalPointer, glPopClientAttrib, glPixelStore, glPushClientAttrib, glReadPixels, glRenderMode, glSelectBuffer, glTexCoordPointer, glVertexPointer, and all of the glGet commands.
Similarly,
glTexImage1D, glTexImage2D, and glTexImage3D
are executed immediately and not compiled into the display list when their
first argument is GL_PROXY_TEXTURE_1D
, GL_PROXY_TEXTURE_1D
, or
GL_PROXY_TEXTURE_3D
, respectively.
When the ARB_imaging
extension is supported,
glHistogram executes immediately when its argument is
GL_PROXY_HISTOGRAM
. Similarly, glColorTable executes
immediately when its first argument is GL_PROXY_COLOR_TABLE
,
GL_PROXY_POST_CONVOLUTION_COLOR_TABLE
, or
GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE
.
For OpenGL versions 1.3 and greater, or when the ARB_multitexture
extension is supported,
glClientActiveTexture is not compiled into display lists, but
executed immediately.
When glEndList is encountered,
the display-list definition is completed by associating the list
with the unique name list
(specified in the glNewList
command).
If a display list with name list
already exists,
it is replaced only when glEndList is called.
glCallList and glCallLists can be entered into display lists.
Commands in the display list or lists executed by glCallList
or glCallLists 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.
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 glEndList is called
without a preceding glNewList
,
or if glNewList
is called while a display list is being defined.
GL_INVALID_OPERATION
is generated if glNewList
or glEndList
is executed between the execution of glBegin
and the corresponding execution of glEnd.
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.)
Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.