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README @ 20148

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1
2	XScreenSaver
3
4	a screen saver and locker for the X window system
5	by Jamie Zawinski
6
7	http://www.jwz.org/xscreensaver/
8
9	To build on Unix:
10
11	- ./configure
12	- make
13	- make install
14
15	The `configure' shell script will attempt to figure out which options are
16	appropriate for your system, and will create config.h and the various
17	Makefiles for you. Run `configure --help' to see how to override these
18	choices, or to specify things like the default installation directory.
19	The file `INSTALL' gives a general overview of use of these sorts of
20	configure scripts (those generated by the GNU autoconf system.)
21
22	If you have libraries in non-standard places, you can specify their
23	locations with options like this:
24
25	./configure --with-motif=/opt/Motif --with-xpm=/usr/local
26
27	On MacOS X, it is strongly recommended that you install Fink first
28	(http://fink.sourceforge.net/). With Fink installed, you probably want
29	to pass --prefix=/sw to configure.
30
31	To build on VMS, see README.VMS.
32
33	If you think you've found a bug, please let me know! No bug report is too
34	small. But first, please read the enclosed `README.debugging' file to find
35	out what kind of information would be most helpful to include in your bug
36	report.
37
38	Getting Started:
39
40	You can try out xscreensaver like so:
41
42	xscreensaver &
43	xscreensaver-demo
44
45	The XScreenSaver suite of applications uses a client-server model:
46	The `xscreensaver' program is a daemon that runs in the background;
47	it is controlled by the foreground `xscreensaver-demo' program.
48
49	xscreensaver has an extensive manual -- please read it!
50
51	============
52
53	The xscreensaver daemon waits until the keyboard and mouse have been idle
54	for a period, and then runs a graphics demo chosen at random. The demo is
55	terminated as soon as there is any mouse or keyboard activity (or, in
56	locking mode, when the proper password is typed.)
57
58	It is trivially easy to add new display modes to xscreensaver: any program
59	which can be invoked in such a way that it draws on the root window of the
60	screen can be used as a screensaver. You just change a config file --
61	there's no need to recompile or reinstall anything.
62
63	============
64
65	Along with the xscreensaver daemon itself, this package also includes
66	numerous graphics hacks for use as screensavers. There is nothing
67	magic about these: they are just programs that draw on the root window.
68	More than 175 such programs are included. For details, see the
69	xscreensaver web page, or the enclosed manual pages.
70
71	The latest version of xscreensaver is always available on the web at
72	http://www.jwz.org/xscreensaver/.
73
74	Looking for tips on writing your own screensavers? There is an entry in
75	the XScreenSaver FAQ about that: http://www.jwz.org/xscreensaver/faq.html
76
77	============
78
79	Changes since 4.13: * New hacks, `fontglide', `apple2', `xanalogtv', `pong',
80	`gleidescope', `mirrorblob', and `blinkbox'.
81	* New version of `glsnake' (with many more models.)
82	* Another Windows crash in `bsod'; also HVX/GCOS6/TPS6.
83	* New version of `endgame'.
84	* Screen grabbing works on MacOS X.
85	* Various minor fixes.
86	Changes since 4.12: * On Xinerama systems, xscreensaver now runs one hack on
87	each monitor (just like in "real" multi-head mode)
88	instead of running one hack stretching across all the
89	screens. Note that for this to work with any 3rd party
90	screensavers, they must update their "vroot.h" file.
91	* `webcollage' and `vidwhacker' display images using
92	`xscreensaver-getimage' now.
93	* Added `ljlatest' script for use with `starwars' and
94	`phosphor'.
95	Changes since 4.11: * New GL hacks, `flipflop', `antspotlight', and
96	`polytopes'.
97	* Added VMS to `bsod'.
98	* Compile without warnings in "gcc -pedantic".
99	* Updates to `webcollage' and `queens'.
100	* Fixed a bug that could cause PAM to hang.
101	Changes since 4.10: * New hacks, `hypertorus', `cubestorm', `glknots',
102	`blocktube', and `glmatrix'.
103	* Updates to `cloudlife', `engine', `xmatrix', and
104	`sonar'.
105	* Rewrote `glslideshow': it should work on somewhat
106	wimpier video cards now.
107	* Various portability tweaks.
108	Changes since 4.09: * New hacks, `cloudlife' and `klein'.
109	* Added Apple ][+, HPUX, and OS/390 sessions to BSOD.
110	* Added some Matrix Reloaded text to `xmatrix'.
111	* Updates to `webcollage', `eruption', `jigglypuff',
112	`metaballs', and `endgame'.
113	* Completely ignore the `memoryLimit' setting now,
114	since it was still causing people GL grief.
115	* Various minor fixes.
116	Changes since 4.08: * New hacks, `flyingtoasters', `bouncingcow',
117	`jigglypuff', and `glslideshow'.
118	* More models in `engine'.
119	* Rewrote `xscreensaver-getimage' to remove reliance on
120	external image loaders (xv, chbg, xloadimage, etc.)
121	and to reduce flicker when loading files.
122	* Made `gflux' and `flipscreen3d' be mouse-spinnable.
123	Changes since 4.07: * New hacks, `atunnels' and `piecewise'.
124	* Physics improvement in `fluidballs'.
125	* Various fixes for XDarwin systems (X11 on MacOS X.)
126	* Added -clock option to `barcode'.
127	* Minor fixes to `endgame', `flurry', `flipscreen3d',
128	and `gflux'.
129	Changes since 4.06: * New hacks, `flurry', `metaballs', `eruption',
130	`popsquares', and `barcode'.
131	* Minor updates to `maze' for high density mazes.
132	* Added double buffering to `fluidballs' and `whirlygig'.
133	* Bug fixes for running xscreensaver to a remote XFree86
134	display (which nobody would ever do...)
135	* Updated `webcollage' (faster Alta Vista searching.)
136	* Updated `glplanet' so the sun sets in the west.
137	* Updated `sproingies' with smooth, unsegmented surfaces.
138	* Fixed Perl version-sensitivity in
139	`xscreensaver-getimage-file'.
140	* Fixed GTK2 scrolling bug in `xscreensaver-demo'.
141	Changes since 4.05: * New hack, `glblur' (disabled by default, since it
142	requires fast OpenGL texture support.)
143	* New hack, `halftone'.
144	* Updates to `endgame', `queens', `bumps', `glplanet',
145	`engine', and `circuit'.
146	* New version of `menger' that uses far fewer polygons.
147	* Fixed minor bug in `critical' that could cause some
148	bogus X servers to crash.
149	* Better labels in `molecule': the labels now appear to
150	be attached to the atoms, instead of floating in front
151	of the whole scene.
152	* Fixed bug that could rarely cause GL hacks to fail to
153	double-buffer (causing intermittent flickering.)
154	* Fixed a relative-URL-parsing bug in `webcollage'.
155	* Fixed a bug that (sometimes) caused the window manager
156	close box to kill `xscreensaver-demo' with a crash
157	instead of a graceful exit.
158	* Updated xscreensaver.pam to the Red Hat 7.3 way.
159	* More Gnome2-related configure crap.
160	* Updated to latest `config.guess' and `config.sub'.
161	* Fixed occasional core dump in `distort'.
162	* Added a Linux fsck failure and kernel panic to `bsod'.
163	* Added MacOS X kernel panic to `bsod'.
164	* Fixed a bug in `bsod' (all bsod bugs are ironic.)
165	* Fixed a bug that caused `xscreensaver-gl-helper' to
166	print a nonsense visual ID with some versions of
167	`printf': this could cause GL programs to display
168	incorrectly (e.g., flickery.)
169	Changes since 4.04: * More `configure' tweaks to try and get things working
170	on systems that both Gtk 1.x and 2.x installed.
171	* New hack, `endgame'.
172	* Minor updates to `gltext'.
173	Changes since 4.03: * Support for GTK 2.x / GNOME 2.x.
174	* The `configure' script will now use `pkg-config' if
175	you have it, in preference to `gtk-config', etc.
176	* New hacks, `lavalite', `queens', and `anemone'.
177	* Minor updates to `spheremonics', `gltext', `xmatrix'.
178	* You can use the mouse to manually spin most of the GL
179	hacks now (when they are displaying in a window.)
180	* Fixed a bug in `webcollage' (due to recent Alta Vista
181	url changes) that was causing it to try and load
182	incorrect image URLs.
183	* Made `xscreensaver-getimage' use gdk_pixbuf if it is
184	available: this means that those hacks that load images
185	will no longer rely on "xv", "xloadimage", etc. This
186	will close a race condition that could sometimes cause
187	your desktop background to be changed; and also makes
188	it possible for those programs to operate on image
189	files when running in windowed mode.
190	* `webcollage' can now be used in conjunction with
191	`driftnet' to display images snooped from your local
192	ethernet instead of obtained from search engines.
193	* Added man pages for all the hacks that didn't have
194	them.
195	Changes since 4.02: * New hack, `spheremonics'.
196	* Minor updates to `webcollage', `cage', `moebius',
197	`morph3d', `boxed', `circuit', and `helix'.
198	* `pulsar' and `extrusion' can now load texture JPEGs.
199	* `rubik' now does non-square cubes.
200	* `fluidballs' now does various sizes of balls.
201	* `menger' and `sierpinski3d' now also show polygon
202	counts in -fps mode.
203	* `molecule' displays real subscripts in the formulae.
204	* GTK internationalization/localization support.
205	* Better detection of the various versions of libxml.
206	* Upgraded to autoconf 2.53 (from 2.13.)
207	Changes since 4.01: * Plugged a few minor leaks in `xscreensaver' and
208	`xscreensaver-demo'.
209	* New hacks, `cubenetic' and `fluidballs'.
210	* Sped up `pipes'.
211	* Fixed sphere projection error in `glplanet'; installed
212	a better image of earth.
213	* Added Win2K and MacOS 1 crashes to `bsod'.
214	* Put back previous (better) version of `forest' that
215	was accidentially downgraded in the last release.
216	* New version of `bumps'.
217	* Made FPS computation in GL hacks more efficient: it
218	will influence the results less, thus resulting in
219	higher (but more accurate) reported frame rates.
220	Changes since 4.00: * New hacks: `twang', `glsnake', `boxed', `sballs',
221	and `glforestfire'.
222	* New hacks `apollonian', `euler2d', `juggle',
223	`polyominoes' and `thornbird', from xlockmore.
224	* Merged recent xlockmore changes into `ant', `braid',
225	`demon', `discrete', `drift', `fadeplot', `forest',
226	`grav', `hopalong', `ifs', `laser', `lightning',
227	`lisa', `lissie', `loop', `mountain', `penrose',
228	`rotor', `sierpinski', `slip', `sphere', `spiral',
229	`strange', and `vines'.
230	* Fixed the `gltext' bug that sometimes caused
231	horizontal lines to vanish again. This time for sure.
232	* Sped up `webcollage' by adding a C helper program to
233	replace the PPM pipeline. It also pastes images
234	semi-transparently now.
235	* Added support for the gdk_pixbuf library: if this lib
236	is available, then `blitspin', `xflame', and `flag'
237	can load GIF, JPEG, and PNG images in addition to XPM
238	and XBM.
239	* Fixed a rare race condition where the desktop-grabbing
240	hacks could sometimes leave the screen wedged, if the
241	user moved the mouse exactly when they were grabbing
242	the screen image (it would un-wedge the next time the
243	saver timed out or was activated.)
244	* Fixed incorrect colors in the screen-grabbing GL hacks
245	(`gflux' and `flipscreen3d'.)
246	* Made SIGHUP restart the daemon process (though using
247	`xscreensaver-command -restart' is still the preferred
248	way.)
249	* Tweaks to `xspirograph'.
250	* Minor configure and portability tweaks.
251	Changes since 3.34: * Redesigned `xscreensaver-demo' GUI: it now includes
252	small-preview and per-hack configuration dialogs.
253	* Added three new modes of operation: `One Screen Saver',
254	`Blank Screen', and `Don't Blank' (in addition to the
255	historical `Random Screen Saver').
256	* Configure now defaults to installing the hacks in
257	<prefix>/lib/xscreensaver/ instead of <prefix>/bin/.
258	(Most distros already did it this way.)
259	* New GL hacks, `menger', `engine', `flipscreen3d'.
260	* Made `sierpinski3d' be more colorful.
261	* New versions of `xmatrix' and `nerverot'.
262	* Fixed a bug in `starwars' that made the font be drawn
263	with thin lines in -root mode.
264	* Fixed a bad colormap bug in `crystal' that could make
265	subsequent hacks malfunction!
266	* Made `gflux' able to grab screen images (`-mode grab').
267	* Updated `webcollage' for recent search engine changes.
268	* Removed most command-line options to `xscreensaver':
269	just edit the ~/.xscreensaver file instead.
270	* Improved behavior on multi-screen and Xinerama systems:
271	the mouse now stays on the screen where the user left
272	it, and the password and splash dialogs always appear
273	on the screen that has the mouse.
274	* Made the splash dialog use more Gtk-like colors;
275	made it have only two buttons, "Settings" and "Help".
276	* Made `sonar' understand `.ssh/known_hosts2' format
277	files, and be better about stripping out illegal
278	addresses.
279	Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
280	some versions of the GL libraries (appear to) allocate
281	hundreds of megs for every GL program, so `memoryLimit'
282	was causing GL programs to malfunction or crash on
283	those systems.
284	* Improved fading on TrueColor XFree86 4.1.x systems.
285	* New GL hack, `circuit'.
286	* Added `fuzz' mode to `decayscreen'.
287	* New version of `whirlygig'.
288	* Added links to `xplanet' and `sphereEversion'.
289	* Fixed rare race condition that could make `sonar' hang.
290	* Fixed potential crash in `speedmine'.
291	* Made `xscreensaver-demo' not crash when imageDirectory
292	was set to a non-existent directory.
293	* Made `xscreensaver-getimage-video' invoke XawTV's
294	`streamer' program better.
295	* Made `phosphor' and `starwars' deal with CR, LF,
296	or CRLF line endings.
297	* Changes for Cygwin compilation environments.
298	* Made `sonar' compile on systems that can't ping.
299	* Configure changes for HPUX 10.20.
300	* Made PAM code work on Red Had 4.2 systems.
301	* Made `xscreensaver-command -deactivate' work when the
302	saver is not active: what that does is reset the idle
303	timer, as if keyboard input had been detected. This
304	was added for the benefit of people writing DVD-playing
305	software: they can now prevent the screensaver from
306	kicking in by sending a -deactivate message once a
307	minute while the movie is playing and not paused.
308	* Various minor portability tweaks.
309	Changes since 3.32: * New hacks, `speedmine' and `whirlygig'.
310	* Sped up `pyro', made the explosions look a bit better.
311	* Added better stars to `glplanet' and `starwars'.
312	* Many internal changes to `webcollage'.
313	* Some new options to `attraction'.
314	* Minor fix to `noseguy' to avoid un-erased pixels.
315	* Rewrote the screen-eraser effects so that they complete
316	in the same amount of time regardless of how slow
317	your X server is (some of them were glacial on servers
318	with slow blitting.)
319	* Fixed a potential free memory reference that could
320	sometimes cause a crash at startup.
321	* Possibly fixed a problem that could cause the daemon
322	to crash with an X error. I was never able to
323	reproduce this problem, but I think I might have
324	figured out what caused it.
325	* Worked around a problem that caused PAM authentication
326	to fail on some Red Hat 7.x systems.
327	* Added a `memoryLimit' parameter that controls the
328	amount of memory a graphics hack may allocate: if they
329	try to allocate more than this, malloc() will fail
330	(and they will exit or (safely) crash, rather than
331	hogging memory.) Default is 50M.
332	* Made `gnome-help-browser' be the default way to display
333	man pages in `xscreensaver-demo', if running on a
334	GNOME system.
335	Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
336	now operate on randomly chosen image files from disk,
337	or on frames captured from the system's video input,
338	instead of (or in addition to) manipulating images of
339	the desktop.
340	* Rewrote `vidwhacker' to use the new image-grabbing
341	mechanism.
342	* Made fading work on TrueColor XFree86 4.x systems.
343	* Fixed a subtle rendering bug in `atlantis' (the fish
344	were inside out!)
345	* Made `atlantis' have a texture simulating light
346	reflections from the surface of the ocean.
347	* Fixed up label placement in `molecule'.
348	* Better color bars in `xteevee'.
349	* Made `install-strip' not try to strip scripts.
350	Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
351	the documentation to reflect the fact that all your
352	DPMS settings are now belong to xscreensaver.
353	* Fixed the `xscreensaver.spec' file so that `--force'
354	is no longer needed.
355	* New versions of `rotzoomer' and `nerverot'.
356	* Fixed an OSF/1 compilation problem in `molecule'.
357	Changes since 3.29: * New hacks, `molecule', `dangerball', and `rotzoomer'.
358	* New version of `gflux'.
359	* Made `gltext' able to display the current time.
360	* Fixed a floating-point-precision problem in `gltext'
361	that sometimes caused horizontal lines to vanish.
362	* Removed the `-window-id' option from the hacks:
363	it never worked right, and was unnecessary.
364	* Made the `starwars' hack use thicker lines, antialias
365	the text, and fade out at the far edge instead of just
366	dropping off.
367	* Fixed an SHM segment leak in `moire'.
368	Changes since 3.28: * Better rendering of the new logo.
369	* New hack, `gltext'.
370	* Added `-planetary' option to `gears', to draw a
371	different kind of gear system.
372	* Made motion and rotation be smoother in `gears',
373	`glplanet', `moebius', `rubik', and `sierpinski3d'.
374	* Improved coloration in `sierpinski3d'.
375	* Made the GL hacks react to window size changes.
376	* Made most of the GL hacks take a -fps option (like
377	`pulsar' did), so you can use them to benchmark your
378	3D hardware.
379	* Fixed the previous fix to `sonar'.
380	* Minor fix to `nerverot'.
381	Made sonar able to ping hosts on DEC OSF1.
382	* Eliminated a bogus "didn't get enough colors" warning
383	in some of the hacks.
384	Changes since 3.27: * New logo for xscreensaver!
385	* New hacks, `starwars' and `stonerview'.
386	* Made the motion of the bouncing ball in `stairs' be a
387	little less jerky.
388	* Made newly-added screenhacks be added to .xscreensaver
389	automatically: if there are hacks in the app-defaults
390	file that are not also in ~/.xscreensaver, they will
391	be added to the end of the list.
392	* Redid the `Screensaver Options' part of the control
393	panel; xscreensaver now lets you configure your DPMS
394	settings.
395	* Fixed some Makefile problems with non-GL builds.
396	* Fixed detection of MesaGL for version 3.3.
397	* Better workaround to Red Hat 7.0's broken gcc.
398	* Added Sparc Solaris kernel panic to `bsod'.
399	Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
400	* Fixed a free-memory-reference bug in `sonar'.
401	* Better error handling when there are no suitable GL
402	visuals.
403	* Added diagnostic dialog when xscreensaver-demo is
404	unable to launch xscreensaver (e.g., when running as
405	root.)
406	* Fixed a bug that caused screenhack argument changes
407	to be ignored when xscreensaver-demo was running as
408	root (if "root" and "nobody" have different home
409	directories.)
410	* Made the programs default to ":0" if $DISPLAY is unset.
411	* Made the `-verbose' output include information about
412	which server extensions were supported at compile time.
413	* Worked around Red Hat 7.0's broken gcc 2.96.
414	* Updated default delays on the GL hacks to look better
415	on machines with super-fast 3D hardware.
416	* Install `screensaver-properties-capplet' to work around
417	the usual egregious GNOME lossage.
418	Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
419	xscreensaver-demo (Gtk version only.)
420	* New hacks `hyperball', `xrayswarm', and `gflux'.
421	* New versions of `nerverot', `galaxy', and `hypercube'.
422	* Small fixes to `phosphor', `shadebobs', `xflame',
423	and `sonar'.
424	* Added external helper program `xscreensaver-gl-helper'
425	to figure out which X visual to use for OpenGL
426	programs.
427	* Configure updates for XFree86 4.0, and for BSD.
428	* Made it be more tolerant of bogus /etc/group files.
429	* When installing the PAM config file, first try to just
430	copy an existing "xdm" or "login" config file, so that
431	xscreensaver does authentication in the same way as the
432	rest of the system.
433	Changes since 3.24: * New hack, `nerverot'.
434	* Added BSD kernel panic to `bsod'.
435	* New version of `shadebobs'.
436	* New version of `petri'.
437	* Updated `webcollage' to handle recent Altavista URL
438	format changes; made it search the AP photo gallery.
439	* Revamped command-line options of `sonar' and made it
440	properly handle subnets.
441	* The `bubbles' hack can now trickle up or down the
442	screen.
443	* The `xsublim' hack can now read its text from programs.
444	* Support for GLE version 3 in `extrusion'.
445	* Fixed compilation problems in `maze'.
446	* Fixed a rare crash in `flow'.
447	* Fixes for minor installation problems.
448	Changes since 3.23: * Added `-ignorant' option to `maze' hack.
449	* Updates to `critical', `bsod', `xflame', and `flow'.
450	* Added support for Kerberos 5 (via its Kerberos 4
451	compatibility layer.)
452	* Fixed a bad leak in `xteevee'.
453	* Updated `webcollage' to handle recent Altavista URL
454	format changes.
455	* Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
456	since they were confusing people: all changes are now
457	instantanious.
458	* Made xscreensaver-demo install itself into the Gnome
459	Control Center.
460	Changes since 3.22: * Fixed some misplaced text fields in the Motif version
461	of xscreensaver-demo; fixed a crash in the Gtk version
462	that would happen if the programs list was empty.
463	* Fixed a recently-introduced bug in `pulsar'.
464	* Made `sierpinski3d' use solid tetrahedrons instead of
465	points.
466	* Added `-trace' option to `xmatrix'.
467	* Added new hacks `xteevee' and `xspirograph'.
468	Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
469	* Rewrote the Motif version of xscreensaver-demo to
470	match the new Gtk version.
471	* The Athena toolkit is no longer supported.
472	Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
473	* Fixed a few visual selection bugs. I think the proper
474	GL visual should be used with nVidia systems now.
475	* Made the Makefiles obey $install_prefix.
476	* Made the `xscreensaver.spec' file able to generate both
477	GL and non-GL packages simultaneously.
478	Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
479	* Made `xscreensaver-command -exit' be silent when no
480	screen saver was running (instead of complaining.)
481	* Made `webcollage' and `vidwhacker' use `xloadimage'
482	when available (in addition to `xli' and `xv'.)
483	* Improved memory usage in `petri' and gave it a hard
484	cap on how much memory it can allocate.
485	* Added `-watch' option to `xscreensaver-command'.
486	* Made `xscreensaver-demo' come up with the
487	most-recently-run hack selected by default.
488	* Rewrote the Gtk version of `xscreensaver-demo'.
489	It's a lot easier to use now.
490	* Extended the format of the programs list in the
491	.xscreensaver file, for the benefit of the new
492	capabilities of `xscreensaver-demo'.
493	NOTE: you might want to delete your ~/.xscreensaver
494	file and allow it to be re-created! The old one
495	should still work, but xscreensaver-demo won't be as
496	pretty.
497	Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
498	* New hack, `extrusion'.
499	* Some of the web sites that `webcollage' was using as
500	its sources changed formats; tweaked it to understand
501	the current layouts.
502	* Added typeahead in the password dialog: if the screen
503	is locked, and you unlock it by typing a character,
504	that key will be automatically inserted in the
505	password dialog (unless it is Return, Enter, Space,
506	or a non-printing key like Shift.)
507	* Made `xmatrix' take a `-small' option, since some
508	folks with tiny screens prefer a smaller font.
509	Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
510	* Added `ccurve', `blaster', and `bumps' hacks.
511	* Replaced `forest' hack with a rewritten version.
512	* Worked around a Xinerama server bug.
513	* Fixed a bug I introduced in 3.10 that caused some
514	hacks to print out superfluous warnings about not
515	having gotten enough colors.
516	* Made `sproingies' obey the `-delay' option.
517	* Fixed a portability bug in `shadebobs'.
518	* Made `webcollage' and `vidwhacker' use `xli' in
519	preference to `xv', if it is available.
520	* Added a new source of images to `webcollage'.
521	* If running under KDE, xscreensaver will add itself to
522	KDE's list of screensavers (via xscreensaver.kss.)
523	* Improved detection of GL libraries.
524	* Made the password dialog include the date and time.
525	Changes since 3.16: * New version of `webcollage' -- deals better with
526	corrupted images, and can use an http proxy.
527	* New hack, `xsublim' (run it in the background,
528	rather than adding it to the programs list.)
529	* The xscreensaver daemon was leaking a file descriptor
530	each time you edited your .xscreensaver file. Fixed.
531	Changes since 3.15: * New version of `shadebobs'.
532	* Improved image selection in `webcollage', and sped it
533	up slightly.
534	* Made configure find the right version of perl.
535	* Rewrote the CGI part of `webcollage'.
536	* `make clean' was deleting some things it shouldn't.
537	* Fixed a typo in the default programs list.
538	Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
539	* Added a `-stdout' arg to `vidwhacker' so that it can
540	be used in a pipeline.
541	* Made `petri' use less memory.
542	Changes since 3.13: * Various improvements to the Gtk port.
543	* Turned off PAM by default on Solaris, since PAM seems
544	generally to be misconfigured out-of-the-box.
545	* Made the `--without-gtk' configure option work.
546	* Made configure check the Gtk version number, since it
547	requires 1.2.
548	* Fixed a bug in the code that attempted to prevent
549	changes of screen resolution while the screen is
550	locked.
551	* Fixed a race condition in `xscreensaver-demo' that
552	could cause an X error at startup.
553	* Added `-transparent' option to `deluxe'.
554	* Added `petri' hack.
555	Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
556	* Made it possible to build Motif, Gtk, and Athena
557	versions of `xscreensaver-demo' in the same directory
558	without reconfiguring.
559	* Made `xscreensaver-demo' chase symlinks before writing
560	the .xscreensaver file, so that if .xscreensaver is
561	itself a symlink, the underlying file will be replaced
562	instead.
563	* Some Makefile and configure tweaks for Solaris and
564	FreeBSD.
565	* Made it possible to set the fire color in `xflame'.
566	* Made transparency work in TrueColor (for `goop' and
567	`qix'.)
568	* Fixed a multi-head bug introduced by the virtual
569	viewports stuff.
570	Changes since 3.11: * Made it so that you can't scroll the screen while the
571	lock dialog is up (with XFree86 virtual viewports.)
572	* Fixed a bug in `flag' that caused bob's chin to get cut
573	off after a few iterations.
574	Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
575	less like a computer screen and more like the
576	typewritten paper it's supposed to be.
577	* New version of `pulsar'.
578	* Fixed Solaris compilation problem in `phosphor'.
579	* Made xscreensaver notice XFree86's virtual root window
580	hack, so that if the X server's root window is larger
581	than the monitor's displayable resolution, the screen
582	saver will limit itself to the area that actually
583	appears on the screen.
584	* Made the xscreensaver daemon do a better job of
585	picking the visual class that should be used for GL
586	programs. Less user intervention should be needed
587	now: you can use the logical visual name `GL' instead
588	of having to figure out by hand which one to use.
589	* Oops, the visual was defaulting to "best" instead of
590	"default", because the .xscreensaver file was not being
591	loaded quite early enough.
592	* Made configure figure out how to build icmp ping
593	support into the `sonar' hack automatically.
594	* Made warnings about not being able to read shadow
595	passwords not be printed if compiled with PAM support.
596	* Improved PAM startup diagnostics.
597	* Worked around the Solaris PAM bug that was causing
598	crashes there, so now PAM is turned on by default.
599	* Made configure detect the number of arguments that
600	pam_strerror() takes, since on Linux, this apparently
601	changed between 2.0 and 2.2, sigh.
602	* Made the /proc/interrupts kludge look for "PS/2 Mouse"
603	as well as "keyboard".
604	* Made xscreensaver notice when there has been a sudden
605	large jump in wall-clock time, and if so, lock right
606	away, instead of waiting for "lockTimeout" to expire
607	first. (Laptops need this for safer recovery from
608	``hibernation.'')
609	* Added `-throttle' option to `xscreensaver-command'.
610	Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
611	* Fixed a bug in the color allocator that sometimes
612	caused `starfish' to fall back to monochrome.
613	* Reduced the amount of code that runs before root
614	privileges are disavowed: "normal" and "shadow"
615	passwords now do some initialization as root, but the
616	PAM and Kerberos authorization schemes will be
617	initialized while running as "nobody". Supposedly
618	this closes a potential security hole when using
619	Kerberos.
620	* Added some more sanity checking to configure.
621	Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
622	`spotlight', and `critical' hacks.
623	* Added some new modes to `decayscreen'.
624	* Made `deluxe' work in monochrome.
625	* Generalized usage of the Double-Buffer server extension
626	in several hacks (`compass', `deluxe', `interference',
627	`kumppa', and `moire2'.)
628	* Fixed another visual-depth problem in `rd-bomb'.
629	* The screen saver will now defer blanking if neither
630	the keyboard nor the mouse could be grabbed. Instead,
631	it will just try again in a few minutes. This fixes
632	a bad interaction between xscreensaver and programs
633	like VMware that hold the mouse and keyboard grabbed
634	for a long time.
635	* Added a new erase mode (expanding spiral.)
636	Changes since 3.07: * Fixed some bugs in my port of `t3d'.
637	* Added `penetrate' and `deluxe' hacks.
638	* When linking against Motif 2.x, also link against XPM.
639	* Added support for using /proc/interrupts for idle
640	detection on Linux. Now xscreensaver shouldn't kick
641	in when the user is active on a non-X virtual console.
642	* Upgraded to autoconf 2.13.
643	Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
644	in properly; check for _Xsetlocale in -lXintl.)
645	* Portability fixes for sonar.c.
646	* Fixed a compilation problem when you have GL but don't
647	have XPM.
648	* Made configure notice when MesaGL requires -lpthread.
649	* Made `flame' ignore SIGFPE (not sure if this is the
650	right fix; it seems only to be needed on FreeBSD.)
651	* Kludged `rd-bomb' work on visuals that are of depth 24
652	but that do not support pixmaps of depth 32.
653	* Fixed `halo' to work properly in TrueColor.
654	* Changed `xscreensaver.spec' to install the hacks in
655	/usr/X11R6/lib/xscreensaver/ by default, since that's
656	where recent Red Hat distributions put them.
657	* Added `t3d' hack.
658	* Updated versions of `crystal', `hopalong', and `flow'
659	from xlockmore.
660	* Imported `demon' and `loop' modes from xlockmore.
661	Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
662	it was always installing a colormap if the
663	`installColormap' preference was set, meaning that
664	`xearth', `xv' and friends were using the wrong
665	colors on 8-bit systems.
666	* Turned off HAVE_PING in `sonar', since it compiles
667	on some Linux systems, but not others of similar
668	vintage...
669	Changes since 3.04: * Fixed an off-by-1 in `distort'.
670	* Added `sonar' hack.
671	* New version of `glplanet' (with stars.)
672	* Made all hacks exit when you type `q' or `ESC' at them,
673	and made them obey the WM_DELETE_WINDOW ClientMessage.
674	* Fixed a nonfatal buffer overrun in lament (note:
675	lament still doesn't work with MesaGL 3.0: it dies in
676	lambda_textured_triangle1(), which is Mesa's bug, not
677	mine.)
678	Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
679	for other folks to generate RPMs.
680	* Made the password code work on HPUX in the situation
681	where: ``enhanced security'' is available; but not
682	used; but the user typed a password more than 8
683	characters long anyway. FTSOHPUX.
684	Changes since 3.02: * Made locking work when passwd aging is enabled.
685	* Added support for PAM (Pluggable Authentication
686	Modules.) It is still turned off by default, though,
687	since it doesn't seem to work on Solaris 2.6, and has
688	been behaving erratically on Red Hat 5.1.
689	* Made each possible authentication method be tried in
690	turn until one succeeds; this means that Kerberos is
691	being used, we will first check Kerberos, and if that
692	fails, will then consult the local password file.
693	Likewise with PAM.
694	* Save and restore the bits under the passwd dialog,
695	to avoid leaving a black rectangle behind when
696	unlocking is cancelled.
697	Changes since 3.01: * Not everyone has sys/select.h, sigh...
698	Changes since 3.00: * Some fixes to `reflect'.
699	* Configure tweaks.
700	* Made it log unsuccessful attempts to unlock the screen
701	to syslog.
702	* Fixed a bug where `xscreensaver-demo' could be seeing
703	a different programs list than `xscreensaver' did.
704	Changes since 2.34: * The xscreensaver daemon no longer links against Motif
705	or Athena: demo-mode and the preferences panel are no
706	longer built in to the daemon, but are now handled by
707	an external program, `xscreensaver-demo'.
708	(I decided that this, along with the recent addition
709	of the `.xscreensaver' config file, justified bumping
710	the version number to 3.00, since this is a fairly
711	major architectural change.)
712	* Lines in the `*programs' resource may now begin with
713	the character "-", meaning "don't run this hack."
714	In this way, it's possible to disable a hack without
715	throwing away the information about it (making it
716	easier to change your mind later.) Eventually the
717	preferences/demo mode GUI should represent this as a
718	checkbox or something.
719	* Fixed a short race condition where it was possible for
720	xscreensaver to die with a BadWindow error if it was
721	blanking the screen just as another window was being
722	deleted.
723	* Made it possible to disable specific modes in `bsod'.
724	Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
725	many valves. Made the viewpoint in `pipes' be selected
726	randomly instead of always being -10 degrees.
727	* Fixed a bug in the XSHM code, in the case where the
728	server supports the XSHM extension but is not the same
729	machine as the client.
730	* Made `rd-bomb' default to taking up the whole screen.
731	* Made it not try to do fading/unfading if no PseudoColor
732	visuals exist.
733	* Initial attempt at supporting VT-locking (doesn't work
734	yet.)
735	* Eliminated the `captureStdout' resource; now
736	`captureStderr' controls both streams.
737	* Added `-capture-stderr' and `-no-capture-stderr'
738	command-line arguments.
739	* Added `glplanet' hack.
740	* When a hack is selected with `xscreensaver-command
741	-select', that hack will be used until further notice
742	(until the saver turns off, or another activation
743	command is issued.)
744	Changes since 2.32: * Made `xscreensaver-command' print error messages:
745	the xscreensaver daemon now responds to ClientMessage
746	events by writing a response message on a window
747	property, instead of just writing to its stderr.
748	* Made the ~/.xscreensaver file be automatically reloaded
749	when the file date changes.
750	* The password dialog and splash screen no longer depend
751	on Motif or Athena. This should clear up a number of
752	focus problems, and is the first step on the path
753	toward moving all of the Motif/Athena/whatever code
754	out of the xscreensaver daemon, and into external
755	processes.
756	* Don't complain about LessTif 0.86 any more, since the
757	new password dialog makes that problem go away.
758	* Configure tweaks for Irix 6.5, SunOS 5.something.
759	* New `-reflect' option to `distort'.
760	Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
761	so that the Preferences panel can save its settings.
762	* New version of `rubik'.
763	* Added `-select N' argument to `xscreensaver-command'.
764	* Oops, left out some of the `bubbles3d' files...
765	Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
766	* Made configure warn against MesaGL 2.6.
767	* Fixed X error at startup when using non-default visual.
768	* New version of `crystal', `ant', and `atlantis' from
769	xlockmore.
770	* New hack, `bubble3d'.
771	* Added some new modes to `bsod'.
772	Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
773	to be after Motif instead of before (Lesstif on Irix
774	needs this.)
775	Changes since 2.28: * Work around a bash bug in configure.
776	* Tweaked HPUX paths again. FTSOHPUX.
777	* Made configure recommend against LessTif 0.86, due
778	to a bug in that version that causes a security hole
779	in the screen locking code. LessTif 0.87 will fix it.
780	* Made all of the `--with' options to `configure' accept
781	a directory option as well (so that --with-motif=/FOO
782	will add -I/FOO/include -L/FOO/lib). I believe this is
783	the Configure Party Line of how do to such things.
784	* Fixed a bug where the mouse was left un-grabbed
785	after the first time the graphics hack was changed
786	(simplified all of the mouse-grabbing logic.)
787	* Maybe possibly perhaps made `vidwhacker' really not
788	leave stray xv windows around. This time for sure.
789	* Added a new erase mode (random dots fizzling out.)
790	* Added `-prefs' argument to `xscreensaver-command',
791	that brings up the Preferences dialog directly (it
792	seems that nobody ever noticed the `Preferences' button
793	on the Demo Mode dialog, maybe this will help.)
794	* Added a splash screen. Turn it off with *splash:false.
795	Changes since 2.27: * Better macsbug text in `bsod'.
796	* New version of `distort' with many new modes.
797	* Plugged a leak in `coral'.
798	* Tweaked configure for HPUX.
799	* Removed some compiler warnings.
800	* More consistent usage of stderr versus stdout.
801	* More diagnostics should an X error occur.
802	* Fixed a possible crash in SGI-specific unfading code.
803	Changes since 2.26: * Improved version of `distort'.
804	* Made `lament' compile against OpenGL 1.0 (though it
805	still requires 1.1 to work properly.)
806	* Updated my email address and home page.
807	Changes since 2.24: * Improved motion in `rd-bomb'.
808	* Added XSHM (shared memory extension) support to the
809	`distort', `interference', `moire', `rd-bomb', and
810	`swirl' hacks, which speeds them up a bit.
811	* Added `lament' hack.
812	Changes since 2.23: * Tweaked the order of the -L options again.
813	* Cleaned up configure's `--help' message.
814	* Added `kumppa' hack.
815	* Smarter maze-solving algorithm in `maze'.
816	* Took `xlyap' out of the default list of hacks, since
817	it's just incredibly buggy (and slow.) Maybe someday
818	someone will fix it...
819	* Added `distort' hack, but didn't add it to the default
820	list (yet) because it's still too slow.
821	* Made the Athena demo dialog look more like the Motif
822	version; it has a text-entry field now, too.
823	* Made the Athena password dialog echo asterisks, like
824	Motif does, instead of using a flyspeck font.
825	* Some random configure tweaks.
826	* Added a `timestamp' resource that makes the `-verbose'
827	messages include the time at which they were printed.
828	Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
829	let the user's "*background" resource show through.
830	Fixed it in a different way.
831	Changes since 2.21: * Added support for the DPMS server extension (Display
832	Power Management System.)
833	* Made configure advertize the `--enable-subdir' option a
834	little more, since that seemed to cause some people
835	stress. Also, made that directory be built into the
836	xscreensaver executable, as a hardcoded prefix to
837	$PATH. (Might help, shouldn't hurt.)
838	* Made configure prefer the two-arg gettimeofday to the
839	one-arg version, since AIX doesn't have any prototypes.
840	* Made it work with Xaw3d (the 3D Athena library.)
841	* Made `make install' create directories as necessary.
842	* New version of lmorph from Sverre.
843	* Added `crystal' and `discreet' hacks from xlockmore.
844	* Added a new mode to `bsod'.
845	Changes since 2.20: * Made `xscreensaver-command -time' use different words.
846	(It now describes the two states as "screen blanked
847	since..." and "screen non-blanked since..." instead of
848	"active since..." and "inactive since..." which a lot
849	of people interpreted as meaning the opposite of what
850	was intended.)
851	* Improved some error messages, in the hopes of making
852	the distinction between the xscreensaver and
853	xscreensaver-command programs more obvious.
854	* Rewrote (and reorganized) parts of the xscreensaver and
855	xscreensaver-command manual pages.
856	* Renamed xscreensaver's `-lock' command-line option to
857	be `-lock-mode', to avoid confusion with the `-lock'
858	option to xscreensaver-command, which does a totally
859	different thing.
860	* Removed xscreensaver's `-demo' command-line option for
861	a similar reason; use `xscreensaver-command -demo'
862	instead.
863	* Disabled SGI's ``scheme'' nonsense in a better way than
864	fully-qualifying the background colors in every single
865	hack.
866	* Fixed some other minor cosmetic problems when *sgiMode
867	is turned on.
868	* Fixed an X error in `bsod -root' (how ironic...)
869	Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
870	grabbed properly (meaning the window manager menu could
871	pop up over the demo-mode display.)
872	* Fixed a bug that made the stderr output sometimes get
873	printed twice.
874	* Fixed a bug that made the demo-mode scrollbar move too
875	fast.
876	* Protected against a possible buffer overflow.
877	* Made `vidwhacker' not leave stray xv windows around.
878	* New version of `ant' so that Bagley doesn't calve.
879	* Make configure on AIX get XShm from the right library.
880	Changes since 2.18: * One file was missing from the tar file. Fixed.
881	Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
882	* Added `epicycle' hack.
883	* Added `interference' hack.
884	* Added `truchet' hack.
885	* Added `bsod' hack.
886	* Added some new modes to `vidwhacker'.
887	Changes since 2.16: * Added a -window-id argument to most hacks, so that they
888	can draw on arbitrary externally-provided windows.
889	* Synched with xlockmore 4.11a01.
890	* Added `flow' hack.
891	* Added `atlantis' GL hack.
892	* Renamed `puzzle' hack to `jigsaw', since xlock already
893	had a different mode called `puzzle'.
894	* Made it self-configure properly when Motif 2.1.0 is
895	being used (requires -lXp now, sigh...)
896	Changes since 2.15: * Made `flag' able to do XPM images.
897	* New look for the xscreensaver logo (`xroger').
898	* Fixed compilation error on Suns with adjunct passwords.
899	* Got multi-architecture builds working again.
900	* Some configure tweaks for building on HPUX and Solaris.
901	* Fixed bug in decayscreen.
902	* Fixed typo in passwd.c.
903	* Made `cynosure' not die when colormap is full.
904	Changes since 2.14: * Added `cynosure' hack.
905	* Added `moire2' hack.
906	* Tweaked `erase.c' some more.
907	* Made unfading a bit smoother.
908	* Added `vidwhacker' hack (not installed by default.)
909	* Added `stairs' hack.
910	* Split `escher' into `cage' and `moebius', as per
911	xlockmore.
912	* Changed subprocess handling to use sigaction() instead
913	of signal() if it's available (this is necessary for
914	SCO but should work fine on other systems too.)
915	* Various other tweaks.
916	Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
917	* Put in some kludges to work around a LessTif bug.
918	* XScreenSaver is known to work with LessTif 0.82 now.
919	* Made fading work on high-end SGI video hardware.
920	* Fixed another SGI-specific bug in screen grabbing;
921	will the madness never cease?
922	* Fixed another crash in `xlyap'.
923	Changes since 2.12: * Made `decayscreen' do directions other than down.
924	* Improved `puzzle'.
925	* Fixed a crash in `xlyap'.
926	* Added CDE info to the man page, removed `cde.txt'.
927	* Configure tweaks for Zippy.
928	* Turned off the signal handling in `bubbles' because
929	it was sometimes failing to die.
930	* Added `hacks/xscreensaver-sgigl.c' to make it possible
931	to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
932	with xscreensaver. Finally!
933	* Fixed a buffer overrun in the locking code that some
934	wily, malicious cracker must have slipped in.
935	* Disabled Motif drag-and-drool in the dialog box
936	buttons, since it's broken in some old versions of
937	Motif.
938	Changes since 2.11: * Added `README.debugging'.
939	* Added `puzzle' hack.
940	* Added `xlyap' hack.
941	* Added `default-n' as a visual name, so that one can
942	have -install on by default, but turn it off for
943	certain poorly-behaved hacks (like xv.)
944	* Added support for grabbing frames of external video
945	(on SGI) to the screen-grabbing hacks (decayscreen,
946	slidescreen, slip, blitspin, and puzzle.)
947	* Improved look of tiles in `slidescreen'; fixed its
948	color allocation problem.
949	Changes since 2.10: * Tweaked `blitspin', added it to the default list.
950	* Added `lissie', `mountain', `triangle', `worm',
951	`rotor', and `ant' from xlockmore.
952	* Updated `sierpinski', `galaxy', and `lisa'.
953	* Thickened the lines in `braid' and `lmorph'.
954	* Updated VMS makefiles.
955	* Renamed `fract' to `vines'.
956	* Added `xjack' hack.
957	* Made a few more hacks use erase.c, and added a few
958	more wipe styles.
959	* Fixed compilation problem with Sun's version of OpenGL.
960	* Added ability to use sigaction() instead of signal()
961	to work around a SCO kernel bug.
962	Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
963	* Configure tweaks for *BSD.
964	Changes since 2.07: * New hacks `rd-bomb' and `coral'.
965	* New version of `maze' with some new algorithms.
966	* New colorized version of `rocks'.
967	* Fixed a bug in qix on 64-bit machines.
968	* Fixed a bug in the -time option.
969	* Fixed a bug in configure related to LessTif.
970	Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
971	* Made multi-architecture ($VPATH) builds work properly.
972	* Merged new GL stuff from xlockmore (rubik, morph3d.)
973	* Fixed intermittent crashes in `imsmap' and `munch'.
974	* Added `fadeplot' hack from xlockmore.
975	Changes since 2.05: * Merged in VMS support from Patrick Moreau.
976	Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
977	configure to detect the extra-random -Xss library.
978	Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
979	* Fixed low-color behavior of `goop', `pyro', `starfish',
980	`greynetic', `flame', `halo', and `moire'.
981	Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
982	* Added `munch' hack.
983	* Added basic dependencies to the Makefile.in files.
984	Changes since 2.01: * Fixes for compiling with the MIT saver extension.
985	* Made the yow/fortune program be a configure option.
986	* Various configure tweaks.
987	Changes since 2.00: * Added `goop' and `starfish' hacks.
988	* Added colomap cycling to `halo'.
989	* Made `attraction' use the new colormap allocator.
990	* Added better $PATH diagnostics.
991	* There was a bug in frand! Color selection should be
992	much improved now.
993	Changes since 1.34: * Converted to use `configure' instead of `imake'.
994	* ANSI C is now required.
995	* Added Kerberos locking support, from Nat Lanza.
996	* Made the stderr text use overlay planes, if possible.
997	* Reworked the xlockmore compatibility stuff again.
998	* Added `gears', `superquadrics', `escher', `pipes',
999	and `sproingies' hacks (depend on OpenGL.)
1000	Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
1001	Changes since 1.32: * Made it work with multi-headed displays.
1002	* Generalized sub-process management (Unix sucks!)
1003	* Added interactive mouse frobbing to Julia.
1004	* Added (untested) support for HPUX shadow passwords.
1005	* Made normal non-shadow passwords be checked if the
1006	shadow passwords aren't accessible for some reason.
1007	Changes since 1.31: * Removed colorPrograms and monoPrograms resources:
1008	made it possible to specify the desired visual on a
1009	per-hack basis.
1010	* Cleaned up / restructured the driver: no more globals.
1011	* Made the Motif and Athena dialogs share more code.
1012	* Probably fixed some Athena colormap-installation bugs.
1013	* Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
1014	* Fixed divide-by-zero in bright random colormaps.
1015	* Added an improved version of xlock's `flag' hack.
1016	* Made unfading work better, and not flicker on SGIs.
1017	* Added `sphere', `forest', `lisa' hacks from xlockmore.
1018	* Added (untested) support for SunOS Adjunct passwords.
1019	Changes since 1.30: * Improved colors and colormap cycling of many hacks.
1020	* Cleaned up xlockmore compatibility layer.
1021	* Made `blitspin' able to grab an image off the screen.
1022	* Ported `swirl' and `bouboule' hacks from xlockmore.
1023	* Made the driver more careful about not leaving bits on
1024	the screen, or allowing other windows to raise
1025	themselves: it now re-blanks the screen every so often.
1026	* Added `-time' option to `xscreensaver-command'.
1027	* Improved SGI screen-grabbing some more: now it can grab
1028	TrueColor screens into PseudoColor windows and have the
1029	colors still come out semi-reasonably.
1030	Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
1031	SGIs when windows of different visuals are present, by
1032	using the XReadDisplay() extension to get a true 24-bit
1033	image out of the frame buffer.
1034	* Made `noseguy' be in color, if compiled with XPM.
1035	* Ported `braid', `drift', `fract', `galaxy', `grav',
1036	`ifs', `julia', `laser', `lightning', `penrose',
1037	`sierpinski', `slip', `spiral', and `strange' hacks
1038	from xlockmore.
1039	* Merged `hopalong' hack with a more recent version.
1040	* Added `cde.txt'.
1041	Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
1042	* Merged in support for non-Motif locking and demo mode.
1043	* Made `blitspin' and `bubbles' work in TrueColor.
1044	* Fixed a stupid bug I introduced in `imsmap'.
1045	* Added `poly' and `gravity' options to `qix'.
1046	Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
1047	* Made `fade' and `unfade' work on 8-bit SGIs.
1048	* Made the dialog boxes more Motify.
1049	* Added `bubbles' hack.
1050	Changes since 1.25: * Added `lmorph' hack.
1051	* Added viscosity and mouse-control to attraction.
1052	* Fixed possible bad color choices in qix and attraction.
1053	* Added ramp-mode to halo.
1054	* Added a new RNG, which is faster and more portable
1055	than using the RNG in libc.
1056	* Made locking work on SCO.
1057	* Various other minor tweaks that I don't remember.
1058	Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
1059	and present them on the screensaver window itself.
1060	* Made demo mode work correctly with non-default visuals
1061	and color maps, instead of always using the defaults.
1062	* Added -visual argument to all included screenhacks.
1063	* Support for the R6 MIT-SCREEN-SAVER server extension.
1064	* Made the demo mode list scroll properly.
1065	* Added `pedal' hack.
1066	Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
1067	decayscreen, and xroger. Fixed apparent conservation-
1068	of-mass problem in pyro; made the shrapnel round.
1069	Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
1070	Changes since 1.21: * Minor tweaks for X11R6.
1071	* Fixes for non-default visuals.
1072	Changes since 1.20: * Fixed bug in color blitspin; added default image.
1073	* Added diagnostics to noseguy. Fixed off-by-one
1074	error in flame. Added some missing casts.
1075	Changes since 1.18: * Added `flame' hack.
1076	* Fixed a minor Motif dialog text field bug.
1077	* Fixed yet another XPointer-not-defined-in-R4 bug.
1078	Changes since 1.17: * Added support for shadow password files.
1079	* Fixed some Motif-related locking bugs.
1080	* Added diagnostics when locking is disabled.
1081	* Made blitspin able to use the XPM library.
1082	* Added `decayscreen' hack.
1083	Changes since 1.16: * Added `halo' hack.
1084	Changes since 1.15: * Portability fixes.
1085	Changes since 1.14: * Broke the driver up into more source files.
1086	* Moved the hacks into their own directory.
1087	* Made all `time' parameters accept the 00:00:00 syntax,
1088	so that even the parameters which are normally read as
1089	minutes can be specified in seconds.
1090	* Added colormap cycling to `imsmap'.
1091	* Made hyper work with K&R compilers.
1092	Changes since 1.13: * Added `orbit' option to `attraction' hack.
1093	* Added `lock-timeout' option.
1094	* Cleaned up options of `maze' hack.
1095	Changes since 1.8: * Added demo mode, and locking.
1096	* Added `maze' hack.
1097	* Added `norotate' option to `rocks' hack.
1098	Changes since 1.4: * Works when run from XDM before anyone logs in.
1099	* Sped up `imsmap'.
1100	* Can use `xv' as a slideshow without using up colormap
1101	entries while the screen is not blanked.
1102	* Fixed a BadDrawable error in non-XIdle mode.
1103	* Added `blitspin' and `imsmap'.
1104	Changes since 1.0: * Current list of included hacks is now: qix, helix,
1105	rorschach, attraction, greynetic, rocks, pyro,
1106	hopalong, and noseguy.

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source: trunk/third/xscreensaver/README @ 20148

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