glCallLists man page on RedHat
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GLCALLLISTS(3G) OpenGL Manual GLCALLLISTS(3G)
NAME
glCallLists - execute a list of display lists
C SPECIFICATION
void glCallLists(GLsizei n, GLenum type, const GLvoid * lists);
PARAMETERS
n
Specifies the number of display lists to be executed.
type
Specifies the type of values in lists. Symbolic constants GL_BYTE,
GL_UNSIGNED_BYTE, GL_SHORT, GL_UNSIGNED_SHORT, GL_INT,
GL_UNSIGNED_INT, GL_FLOAT, GL_2_BYTES, GL_3_BYTES, and GL_4_BYTES
are accepted.
lists
Specifies the address of an array of name offsets in the display
list. The pointer type is void because the offsets can be bytes,
shorts, ints, or floats, depending on the value of type.
DESCRIPTION
glCallLists causes each display list in the list of names passed as
lists to be executed. As a result, the commands saved in each display
list are executed in order, just as if they were called without using a
display list. Names of display lists that have not been defined are
ignored.
glCallLists provides an efficient means for executing more than one
display list. type allows lists with various name formats to be
accepted. The formats are as follows:
GL_BYTE
lists is treated as an array of signed bytes, each in the range
-128 through 127.
GL_UNSIGNED_BYTE
lists is treated as an array of unsigned bytes, each in the range 0
through 255.
GL_SHORT
lists is treated as an array of signed two-byte integers, each in
the range -32768 through 32767.
GL_UNSIGNED_SHORT
lists is treated as an array of unsigned two-byte integers, each in
the range 0 through 65535.
GL_INT
lists is treated as an array of signed four-byte integers.
GL_UNSIGNED_INT
lists is treated as an array of unsigned four-byte integers.
GL_FLOAT
lists is treated as an array of four-byte floating-point values.
GL_2_BYTES
lists is treated as an array of unsigned bytes. Each pair of bytes
specifies a single display-list name. The value of the pair is
computed as 256 times the unsigned value of the first byte plus the
unsigned value of the second byte.
GL_3_BYTES
lists is treated as an array of unsigned bytes. Each triplet of
bytes specifies a single display-list name. The value of the
triplet is computed as 65536 times the unsigned value of the first
byte, plus 256 times the unsigned value of the second byte, plus
the unsigned value of the third byte.
GL_4_BYTES
lists is treated as an array of unsigned bytes. Each quadruplet of
bytes specifies a single display-list name. The value of the
quadruplet is computed as 16777216 times the unsigned value of the
first byte, plus 65536 times the unsigned value of the second byte,
plus 256 times the unsigned value of the third byte, plus the
unsigned value of the fourth byte.
The list of display-list names is not null-terminated. Rather, n
specifies how many names are to be taken from lists.
An additional level of indirection is made available with the
glListBase() command, which specifies an unsigned offset that is added
to each display-list name specified in lists before that display list
is executed.
glCallLists can appear inside a display list. To avoid the possibility
of infinite recursion resulting from display lists calling one another,
a limit is placed on the nesting level of display lists during
display-list execution. This limit must be at least 64, and it depends
on the implementation.
GL state is not saved and restored across a call to glCallLists. Thus,
changes made to GL state during the execution of the display lists
remain after execution is completed. Use glPushAttrib(), glPopAttrib(),
glPushMatrix(), and glPopMatrix() to preserve GL state across
glCallLists calls.
NOTES
Display lists can be executed between a call to glBegin() and the
corresponding call to glEnd(), as long as the display list includes
only commands that are allowed in this interval.
ERRORS
GL_INVALID_VALUE is generated if n is negative.
GL_INVALID_ENUM is generated if type is not one of GL_BYTE,
GL_UNSIGNED_BYTE, GL_SHORT, GL_UNSIGNED_SHORT, GL_INT, GL_UNSIGNED_INT,
GL_FLOAT, GL_2_BYTES, GL_3_BYTES, GL_4_BYTES.
ASSOCIATED GETS
glGet() with argument GL_LIST_BASE
glGet() with argument GL_MAX_LIST_NESTING
glIsList()
SEE ALSO
glCallList(), glDeleteLists(), glGenLists(), glListBase(), glNewList(),
glPushAttrib(), glPushMatrix()
COPYRIGHT
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/.
AUTHORS
opengl.org
opengl.org 03/16/2013 GLCALLLISTS(3G)
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