NAME
glCallLists
- execute a list of display lists
C SPECIFICATION
void ggllCCaallllLLiissttss(
GLsizei _n,
GLenum _t_y_p_e,
const GLvoid _*_l_i_s_t_s )
PARAMETERS
-
_n
-
Specifies the number of display lists to be executed.
-
_t_y_p_e
-
Specifies the type of values in _l_i_s_t_s.
Symbolic constants
GGLL__BBYYTTEE,
GGLL__UUNNSSIIGGNNEEDD__BBYYTTEE,
GGLL__SSHHOORRTT,
GGLL__UUNNSSIIGGNNEEDD__SSHHOORRTT,
GGLL__IINNTT,
GGLL__UUNNSSIIGGNNEEDD__IINNTT,
GGLL__FFLLOOAATT,
GGLL__22__BBYYTTEESS,
GGLL__33__BBYYTTEESS, and
GGLL__44__BBYYTTEESS are accepted.
-
_l_i_s_t_s
-
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 _t_y_p_e.
DESCRIPTION
ggllCCaallllLLiissttss causes each display list in the list of names passed as _l_i_s_t_s
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.
ggllCCaallllLLiissttss provides an efficient means for executing more than one display list.
_t_y_p_e allows lists with various name formats to be accepted.
The formats are as follows:
-
GGLL__BBYYTTEE
-
_l_i_s_t_s is treated as an array of signed bytes,
each in the range -128 through 127.
-
GGLL__UUNNSSIIGGNNEEDD__BBYYTTEE
-
_l_i_s_t_s is treated as an array of unsigned bytes,
each in the range 0 through 255.
-
GGLL__SSHHOORRTT
-
_l_i_s_t_s is treated as an array of signed two-byte integers,
each in the range -32768 through 32767.
-
GGLL__UUNNSSIIGGNNEEDD__SSHHOORRTT
-
_l_i_s_t_s is treated as an array of unsigned two-byte integers,
each in the range 0 through 65535.
-
GGLL__IINNTT
-
_l_i_s_t_s is treated as an array of signed four-byte integers.
-
GGLL__UUNNSSIIGGNNEEDD__IINNTT
-
_l_i_s_t_s is treated as an array of unsigned four-byte integers.
-
GGLL__FFLLOOAATT
-
_l_i_s_t_s is treated as an array of four-byte floating-point values.
-
GGLL__22__BBYYTTEESS
-
_l_i_s_t_s 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.
-
GGLL__33__BBYYTTEESS
-
_l_i_s_t_s 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.
-
GGLL__44__BBYYTTEESS
-
_l_i_s_t_s 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 _l_i_s_t_s.
An additional level of indirection is made available with the
ggllLLiissttBBaassee command,
which specifies an unsigned offset that is added to each display-list
name specified in _l_i_s_t_s before that display list is executed.
ggllCCaallllLLiissttss 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 ggllCCaallllLLiissttss.
Thus,
changes made to GL state during the execution of the display lists
remain after execution is completed.
Use ggllPPuusshhAAttttrriibb,
ggllPPooppAAttttrriibb,
ggllPPuusshhMMaattrriixx,
and ggllPPooppMMaattrriixx to preserve GL state across ggllCCaallllLLiissttss calls.
NOTES
Display lists can be executed between a call to ggllBBeeggiinn
and the corresponding call to ggllEEnndd,
as long as the display list includes only commands that are allowed
in this interval.
ERRORS
GGLL__IINNVVAALLIIDD__VVAALLUUEE is generated if _n is negative.
GGLL__IINNVVAALLIIDD__EENNUUMM is generated if _t_y_p_e is not one of
GGLL__BBYYTTEE,
GGLL__UUNNSSIIGGNNEEDD__BBYYTTEE,
GGLL__SSHHOORRTT,
GGLL__UUNNSSIIGGNNEEDD__SSHHOORRTT,
GGLL__IINNTT,
GGLL__UUNNSSIIGGNNEEDD__IINNTT,
GGLL__FFLLOOAATT,
GGLL__22__BBYYTTEESS,
GGLL__33__BBYYTTEESS,
GGLL__44__BBYYTTEESS.
ASSOCIATED GETS
ggllGGeett with argument GGLL__LLIISSTT__BBAASSEE
ggllGGeett with argument GGLL__MMAAXX__LLIISSTT__NNEESSTTIINNGG
ggllIIssLLiisstt
SEE ALSO
ggllCCaallllLLiisstt((33GG)),
ggllDDeelleetteeLLiissttss((33GG)),
ggllGGeennLLiissttss((33GG)),
ggllLLiissttBBaassee((33GG)),
ggllNNeewwLLiisstt((33GG)),
ggllPPuusshhAAttttrriibb((33GG)),
ggllPPuusshhMMaattrriixx((33GG))