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Man Pages


Manual Reference Pages  -  GLENDLIST (3)

NAME

glNewList, glEndList - create or replace a display list

CONTENTS

C Specification
Parameters
C Specification
Description
Notes
Errors
Associated Gets
See Also

C SPECIFICATION

void glNewList( GLuint list,

              GLenum mode )

PARAMETERS

list Specifies the display-list name.
mode Specifies the compilation mode, which can be GL_COMPILE or GL_COMPILE_AND_EXECUTE.

C SPECIFICATION

void glEndList( void )

DESCRIPTION

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 glColorPointer, glDeleteLists, glDisableClientState, glEdgeFlagPointer, glEnableClientState, glFeedbackBuffer, glFinish, glFlush, glGenLists, glIndexPointer, glInterleavedArrays, glIsEnabled, glIsList, glNormalPointer, glPopClientAttrib, glPixelStore, glPushClientAttrib, glReadPixels, glRenderMode, glSelectBuffer, glTexCoordPointer, glVertexPointer, and all of the glGet commands.

Similarly, glTexImage2D and glTexImage1D 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 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.

NOTES

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.

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 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.)

ASSOCIATED GETS

glIsList
glGet with argument GL_LIST_INDEX
glGet with argument GL_LIST_MODE

SEE ALSO

glCallList, glCallLists, glDeleteLists, glGenLists
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