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xfree86: handle missing Screen lines in the ServerLayout #16301 

If no Screen is specified in the ServerLayout section, either take the first
one from the config file or autogenerate a default screen.

X.Org Bug 16301 <http://bugs.freedesktop.org/show_bug.cgi?id=16301>
This commit is contained in:
Peter Hutterer 2008-07-01 13:18:54 +09:30
parent 6674b87a7d
commit fe5cf7cb00
1 changed files with 18 additions and 0 deletions
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18
hw/xfree86/common/xf86Config.c
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@ -1608,10 +1608,14 @@ configLayout(serverLayoutPtr servlayoutp, XF86ConfLayoutPtr conf_layout,
count++;
adjp = (XF86ConfAdjacencyPtr)adjp->list.next;
}
#ifdef DEBUG
ErrorF("Found %d screens in the layout section %s",
count, conf_layout->lay_identifier);
#endif
if (!count) /* alloc enough storage even if no screen is specified */
count = 1;
slp = xnfcalloc(1, (count + 1) * sizeof(screenLayoutRec));
slp[count].screen = NULL;
/*
@ -1666,6 +1670,20 @@ configLayout(serverLayoutPtr servlayoutp, XF86ConfLayoutPtr conf_layout,
adjp = (XF86ConfAdjacencyPtr)adjp->list.next;
}
/* No screen was specified in the layout. take the first one from the
* config file, or - if it is NULL - configScreen autogenerates one for
* us */
if (!count)
{
slp[0].screen = xnfcalloc(1, sizeof(confScreenRec));
if (!configScreen(slp[0].screen, xf86configptr->conf_screen_lst,
0, X_CONFIG)) {
xfree(slp[0].screen);
xfree(slp);
return FALSE;
}
}
/* XXX Need to tie down the upper left screen. */
/* Fill in the refscreen and top/bottom/left/right values */