From 74fb5e94c92438d30a53cd38e82afb752aec91e6 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Fri, 19 Oct 2018 11:54:14 +0200
Subject: Add dpmsFullThrottle:

Don't suspend/kill screen hack when monitor enters standby mode.
---
 driver/XScreenSaver.ad.in |  1 +
 driver/XScreenSaver_ad.h  |  2 ++
 driver/prefs.c            |  3 +++
 driver/subprocs.c         |  2 +-
 driver/types.h            |  1 +
 driver/xscreensaver.c     | 19 ++++++++++---------
 6 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/driver/XScreenSaver.ad.in b/driver/XScreenSaver.ad.in
index e365486..64cb9b0 100644
--- a/driver/XScreenSaver.ad.in
+++ b/driver/XScreenSaver.ad.in
@@ -38,6 +38,7 @@
 *dpmsStandby:		2:00:00
 *dpmsSuspend:		2:00:00
 *dpmsOff:		4:00:00
+*dpmsFullThrottle:   False
 *grabDesktopImages:	True
 *grabVideoFrames:	False
 *chooseRandomImages:	@DEFAULT_IMAGES_P@
diff --git a/driver/XScreenSaver_ad.h b/driver/XScreenSaver_ad.h
index 345bca9..1b97ec5 100644
--- a/driver/XScreenSaver_ad.h
+++ b/driver/XScreenSaver_ad.h
@@ -11,6 +11,7 @@
 "*dpmsStandby:		2:00:00",
 "*dpmsSuspend:		2:00:00",
 "*dpmsOff:		4:00:00",
+"*dpmsFullThrottle:   False",
 "*grabDesktopImages:	True",
 "*grabVideoFrames:	False",
 "*chooseRandomImages:	True",
@@ -52,6 +53,7 @@
 		--command '/bin/sh -c \"man %s; read foo\"'",
 "*dateFormat:		%d-%b-%y (%a); %I:%M %p",
 "*newLoginCommand:	dm-tool switch-to-greeter",
+"*externalUngrabCommand:	",
 "*installColormap:	True",
 "*programs:								      \
 				maze -root				    \\n\
diff --git a/driver/prefs.c b/driver/prefs.c
index 6965ad9..ec5583b 100644
--- a/driver/prefs.c
+++ b/driver/prefs.c
@@ -282,6 +282,7 @@ static const char * const prefs[] = {
   "dpmsStandby",
   "dpmsSuspend",
   "dpmsOff",
+  "dpmsFullThrottle",
   "grabDesktopImages",
   "grabVideoFrames",
   "chooseRandomImages",
@@ -826,6 +827,7 @@ write_init_file (Display *dpy,
       CHECK("dpmsStandby")	type = pref_time, t = p->dpms_standby;
       CHECK("dpmsSuspend")	type = pref_time, t = p->dpms_suspend;
       CHECK("dpmsOff")		type = pref_time, t = p->dpms_off;
+      CHECK("dpmsFullThrottle")		continue; /* don't save */
 
       CHECK("grabDesktopImages") type =pref_bool, b = p->grab_desktop_p;
       CHECK("grabVideoFrames")   type =pref_bool, b = p->grab_video_p;
@@ -1084,6 +1086,7 @@ load_init_file (Display *dpy, saver_preferences *p)
   p->dpms_standby    = 1000 * get_minutes_resource (dpy, "dpmsStandby", "Time");
   p->dpms_suspend    = 1000 * get_minutes_resource (dpy, "dpmsSuspend", "Time");
   p->dpms_off        = 1000 * get_minutes_resource (dpy, "dpmsOff",     "Time");
+  p->dpms_full_throttle_p = get_boolean_resource (dpy, "dpmsFullThrottle", "Boolean");
 
   p->grab_desktop_p  = get_boolean_resource (dpy, "grabDesktopImages",  "Boolean");
   p->grab_video_p    = get_boolean_resource (dpy, "grabVideoFrames",    "Boolean");
diff --git a/driver/subprocs.c b/driver/subprocs.c
index 13b47a4..9f4b075 100644
--- a/driver/subprocs.c
+++ b/driver/subprocs.c
@@ -983,7 +983,7 @@ spawn_screenhack (saver_screen_info *ssi)
   saver_preferences *p = &si->prefs;
   XFlush (si->dpy);
 
-  if (!monitor_powered_on_p (si))
+  if (!p->dpms_full_throttle_p && !monitor_powered_on_p (si))
     {
       if (si->prefs.verbose_p)
         fprintf (stderr,
diff --git a/driver/types.h b/driver/types.h
index 8ecef71..93c6731 100644
--- a/driver/types.h
+++ b/driver/types.h
@@ -137,6 +137,7 @@ struct saver_preferences {
   Time dpms_standby;		/* how long until monitor goes black */
   Time dpms_suspend;		/* how long until monitor power-saves */
   Time dpms_off;		/* how long until monitor powers down */
+  Bool dpms_full_throttle_p; /* Never kill or suspend hack when screen is off */
 
   Bool grab_desktop_p;		/* These are not used by "xscreensaver" */
   Bool grab_video_p;		/*  itself: they are used by the external */
diff --git a/driver/xscreensaver.c b/driver/xscreensaver.c
index 4f59291..d44ea40 100644
--- a/driver/xscreensaver.c
+++ b/driver/xscreensaver.c
@@ -1380,15 +1380,16 @@ main_loop (saver_info *si)
 
             was_locked = True;
 	    si->dbox_up_p = True;
-       /* bwlp: make sure saver is running */
-       usleep(50000);
-       for (i = 0; i < si->nscreens; i++)
-         if (si->screens[i].pid == 0)
-           spawn_screenhack (&si->screens[i]);
-       usleep(100000);
-       /* -- */
-            for (i = 0; i < si->nscreens; i++)
-              suspend_screenhack (&si->screens[i], True);	  /* suspend */
+            if (p->dpms_full_throttle_p)
+              {
+                for (i = 0; i < si->nscreens; i++)
+                  if (si->screens[i].pid == 0)
+                    spawn_screenhack (&si->screens[i]);
+                usleep(100000);
+              }
+            else
+              for (i = 0; i < si->nscreens; i++)
+                suspend_screenhack (&si->screens[i], True);	  /* suspend */
 	    XUndefineCursor (si->dpy, ssi->screensaver_window);
 
 	    ok_to_unblank = unlock_p (si);
-- 
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