static Visual *GetSpecifiedVisual( Disp_Obj * dop, int depth )
{
XVisualInfo * vip;
int visualsMatched;
int i;
const char * name;
vip = get_depth_list(dop,depth,&visualsMatched);
if( visualsMatched == 0 ) return(NULL);
/* We need something more here, for openGL we have multiple visuals w/ 24 bit truecolor,
* but not all have a Z buffer...
* As a hack, we pass the desired visualID through the environment...
*/
{
char *s;
s=getenv("PREFERRED_VISUAL_ID");
if( s != NULL ){
int preferred_id;
sprintf(DEFAULT_ERROR_STRING,"Checking for PREFERRED_VISUAL_ID %s",s);
NADVISE(DEFAULT_ERROR_STRING);
preferred_id = atoi(s); /* BUG decimal only, should parse hex too */
i=find_visual_by_id(vip,visualsMatched,preferred_id);
if( i >= 0 ){
sprintf(DEFAULT_ERROR_STRING,"preferred visual id %d FOUND at index %d",preferred_id,i);
NADVISE(DEFAULT_ERROR_STRING);
return(vip[i].visual);
}
sprintf(DEFAULT_ERROR_STRING,"Unable to find requested visual id %d",preferred_id);
NWARN(DEFAULT_ERROR_STRING);
}
}
i=find_visual(vip,visualsMatched,PREFERRED_MODE,depth);
if( i < 0 ){
sprintf(DEFAULT_ERROR_STRING,"no %s visual found with depth %d!?",
PREFERRED_NAME,depth);
NWARN(DEFAULT_ERROR_STRING);
i=find_visual(vip,visualsMatched,ALTERNATE_MODE,depth);
if( i < 0 ){
sprintf(DEFAULT_ERROR_STRING,"no %s visual found with depth %d!?",
ALTERNATE_NAME,depth);
NWARN(DEFAULT_ERROR_STRING);
return(vip[0].visual);
} else {
name = ALTERNATE_NAME;
}
} else {
name = PREFERRED_NAME;
}
if( verbose ){
sprintf(DEFAULT_ERROR_STRING,"i=%d, using visual %ld (%s, depth = %d)",
i, vip[i].visualid,name,depth);
NADVISE(DEFAULT_ERROR_STRING);
}
return(vip[i].visual);
}
static Visual *GetEightBitVisual( Disp_Obj * dop)
{
int visualsMatched=0;
Visual *vis;
XVisualInfo *vip;
int i;
vip = get_depth_list(dop,8,&visualsMatched);
if( visualsMatched == 0 ) return(NULL);
i=find_visual(vip,visualsMatched,PseudoColor,8);
if( i < 0 ){
NWARN("no pseudocolor visual found!?");
return(vip[0].visual);
}
#ifdef QUIP_DEBUG
if( debug & xdebug ){
sprintf(DEFAULT_ERROR_STRING,"using visual %ld",vip[i].visualid);
NADVISE(DEFAULT_ERROR_STRING);
vis=DefaultVisual(dop->do_dpy,dop->do_screen);
sprintf(DEFAULT_ERROR_STRING,"default visual is %ld",vis->visualid);
NADVISE(DEFAULT_ERROR_STRING);
}
#endif /* QUIP_DEBUG */
return(vip[i].visual);
}
XVisualInfo * i4_x11_opengl_display_class::visual()
{
if (!the_visual)
{
the_visual = find_visual();
}
return the_visual;
}
