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make sure programs cannot write to the screen while it is in graphics mode

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drochner 1998-12-15 14:25:59 +00:00
parent 57186cce33
commit 4f720cad14
1 changed files with 5 additions and 3 deletions
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8
sys/dev/wscons/wsdisplay.c
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@ -1,4 +1,4 @@
/* $NetBSD: wsdisplay.c,v 1.11 1998/08/02 14:18:07 drochner Exp $ */ /* $NetBSD: wsdisplay.c,v 1.12 1998/12/15 14:25:59 drochner Exp $ */
/* /*
* Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved. * Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved.
@ -33,7 +33,7 @@
static const char _copyright[] __attribute__ ((unused)) = static const char _copyright[] __attribute__ ((unused)) =
"Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved."; "Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved.";
static const char _rcsid[] __attribute__ ((unused)) = static const char _rcsid[] __attribute__ ((unused)) =
"$NetBSD: wsdisplay.c,v 1.11 1998/08/02 14:18:07 drochner Exp $"; "$NetBSD: wsdisplay.c,v 1.12 1998/12/15 14:25:59 drochner Exp $";
#include <sys/param.h> #include <sys/param.h>
#include <sys/conf.h> #include <sys/conf.h>
@ -852,9 +852,11 @@ wsdisplaystart(tp)
n = q_to_b(&tp->t_outq, buf, sizeof(buf)); n = q_to_b(&tp->t_outq, buf, sizeof(buf));
if (WSSCREEN_HAS_EMULATOR(scr)) if (!(scr->scr_flags & SCR_GRAPHICS)) {
KASSERT(WSSCREEN_HAS_EMULATOR(scr));
(*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie,
buf, n, 0); buf, n, 0);
}
s = spltty(); s = spltty();
tp->t_state &= ~TS_BUSY; tp->t_state &= ~TS_BUSY;