4 a screen saver and locker for the X window system
7 http://www.jwz.org/xscreensaver/
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 The most important hint is probably this:
23 ./configure --with-motif=/opt/Motif --with-xpm=/usr/local
25 To build on VMS, see README.VMS.
27 If you are upgrading, you might want to delete your ~/.xscreensaver file.
28 If you don't, you might not see the new graphics modes. If you are upgrading
29 from version 2.* to version 3.*, definitely do delete your .xscreensaver file.
31 If you think you've found a bug, please let me know! No bug report is too
32 small. But first, please read the enclosed `README.debugging' file to find
33 out what kind of information would be most helpful to include in your bug
38 You can try out xscreensaver like so:
41 xscreensaver-command -demo
43 After a few seconds, the screen should go black, and a dialog box should
44 appear in the upper right corner. This is "Demo Mode".
46 Note: unlike `xlock', xscreensaver has a client-server model: the
47 `xscreensaver' process is a daemon that runs in the background; it is
48 controlled by the foreground `xscreensaver-command' program.
50 xscreensaver has an extensive manual -- please read it!
54 The xscreensaver daemon waits until the keyboard and mouse have been idle
55 for a period, and then runs a graphics demo chosen at random. The demo is
56 terminated as soon as there is any mouse or keyboard activity (or, in
57 locking mode, when the proper password is typed.)
59 It is trivially easy to add new display modes to xscreensaver: any program
60 which can be invoked in such a way that it draws on the root window of the
61 screen can be used as a screensaver. You just change a config file --
62 there's no need to recompile or reinstall anything.
66 Along with the xscreensaver daemon itself, this package also includes
67 numerous graphics hacks for use as screensavers. There is nothing magic
68 about these: they are just programs that draw on the root window.
70 More than 100 such programs are included. For details, see the xscreensaver
71 web page, or the enclosed manual pages. There are also some helpful hints
72 on customization in the xscreensaver app-defaults file (normally installed
73 in /usr/lib/X11/app-defaults/XScreenSaver.)
75 The latest version of xscreensaver is always available on the web at
76 http://www.jwz.org/xscreensaver/.
80 Changes since 3.15: * New version of `shadebobs'.
81 * Improved image selection in `webcollage', and sped it
83 * Made configure find the right version of perl.
84 * Rewrote the CGI part of `webcollage'.
85 * `make clean' was deleting some things it shouldn't.
86 * Fixed a typo in the default programs list.
87 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
88 * Added a `-stdout' arg to `vidwhacker' so that it can
89 be used in a pipeline.
90 * Made `petri' use less memory.
91 Changes since 3.13: * Various improvements to the Gtk port.
92 * Turned off PAM by default on Solaris, since PAM seems
93 generally to be misconfigured out-of-the-box.
94 * Made the `--without-gtk' configure option work.
95 * Made configure check the Gtk version number, since it
97 * Fixed a bug in the code that attempted to prevent
98 changes of screen resolution while the screen is
100 * Fixed a race condition in `xscreensaver-demo' that
101 could cause an X error at startup.
102 * Added `-transparent' option to `deluxe'.
103 * Added `petri' hack.
104 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
105 * Made it possible to build Motif, Gtk, and Athena
106 versions of `xscreensaver-demo' in the same directory
107 without reconfiguring.
108 * Made `xscreensaver-demo' chase symlinks before writing
109 the .xscreensaver file, so that if .xscreensaver is
110 itself a symlink, the underlying file will be replaced
112 * Some Makefile and configure tweaks for Solaris and
114 * Made it possible to set the fire color in `xflame'.
115 * Made transparency work in TrueColor (for `goop' and
117 * Fixed a multi-head bug introduced by the virtual
119 Changes since 3.11: * Made it so that you can't scroll the screen while the
120 lock dialog is up (with XFree86 virtual viewports.)
121 * Fixed a bug in `flag' that caused bob's chin to get cut
122 off after a few iterations.
123 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
124 less like a computer screen and more like the
125 typewritten paper it's supposed to be.
126 * New version of `pulsar'.
127 * Fixed Solaris compilation problem in `phosphor'.
128 * Made xscreensaver notice XFree86's virtual root window
129 hack, so that if the X server's root window is larger
130 than the monitor's displayable resolution, the screen
131 saver will limit itself to the area that actually
132 appears on the screen.
133 * Made the xscreensaver daemon do a better job of
134 picking the visual class that should be used for GL
135 programs. Less user intervention should be needed
136 now: you can use the logical visual name `GL' instead
137 of having to figure out by hand which one to use.
138 * Oops, the visual was defaulting to "best" instead of
139 "default", because the .xscreensaver file was not being
140 loaded quite early enough.
141 * Made configure figure out how to build icmp ping
142 support into the `sonar' hack automatically.
143 * Made warnings about not being able to read shadow
144 passwords not be printed if compiled with PAM support.
145 * Improved PAM startup diagnostics.
146 * Worked around the Solaris PAM bug that was causing
147 crashes there, so now PAM is turned on by default.
148 * Made configure detect the number of arguments that
149 pam_strerror() takes, since on Linux, this apparently
150 changed between 2.0 and 2.2, sigh.
151 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
152 as well as "keyboard".
153 * Made xscreensaver notice when there has been a sudden
154 large jump in wall-clock time, and if so, lock right
155 away, instead of waiting for "lockTimeout" to expire
156 first. (Laptops need this for safer recovery from
158 * Added `-throttle' option to `xscreensaver-command'.
159 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
160 * Fixed a bug in the color allocator that sometimes
161 caused `starfish' to fall back to monochrome.
162 * Reduced the amount of code that runs before root
163 privileges are disavowed: "normal" and "shadow"
164 passwords now do some initialization as root, but the
165 PAM and Kerberos authorization schemes will be
166 initialized while running as "nobody". Supposedly
167 this closes a potential security hole when using
169 * Added some more sanity checking to configure.
170 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
171 `spotlight', and `critical' hacks.
172 * Added some new modes to `decayscreen'.
173 * Made `deluxe' work in monochrome.
174 * Generalized usage of the Double-Buffer server extension
175 in several hacks (`compass', `deluxe', `interference',
176 `kumppa', and `moire2'.)
177 * Fixed another visual-depth problem in `rd-bomb'.
178 * The screen saver will now defer blanking if neither
179 the keyboard nor the mouse could be grabbed. Instead,
180 it will just try again in a few minutes. This fixes
181 a bad interaction between xscreensaver and programs
182 like VMware that hold the mouse and keyboard grabbed
184 * Added a new erase mode (expanding spiral.)
185 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
186 * Added `penetrate' and `deluxe' hacks.
187 * When linking against Motif 2.x, also link against XPM.
188 * Added support for using /proc/interrupts for idle
189 detection on Linux. Now xscreensaver shouldn't kick
190 in when the user is active on a non-X virtual console.
191 * Upgraded to autoconf 2.13.
192 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
193 in properly; check for _Xsetlocale in -lXintl.)
194 * Portability fixes for sonar.c.
195 * Fixed a compilation problem when you have GL but don't
197 * Made configure notice when MesaGL requires -lpthread.
198 * Made `flame' ignore SIGFPE (not sure if this is the
199 right fix; it seems only to be needed on FreeBSD.)
200 * Kludged `rd-bomb' work on visuals that are of depth 24
201 but that *do not* support pixmaps of depth 32.
202 * Fixed `halo' to work properly in TrueColor.
203 * Changed `xscreensaver.spec' to install the hacks in
204 /usr/X11R6/lib/xscreensaver/ by default, since that's
205 where recent Red Hat distributions put them.
207 * Updated versions of `crystal', `hopalong', and `flow'
209 * Imported `demon' and `loop' modes from xlockmore.
210 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
211 it was always installing a colormap if the
212 `installColormap' preference was set, meaning that
213 `xearth', `xv' and friends were using the wrong
214 colors on 8-bit systems.
215 * Turned off HAVE_PING in `sonar', since it compiles
216 on some Linux systems, but not others of similar
218 Changes since 3.04: * Fixed an off-by-1 in `distort'.
219 * Added `sonar' hack.
220 * New version of `glplanet' (with stars.)
221 * Made all hacks exit when you type `q' or `ESC' at them,
222 and made them obey the WM_DELETE_WINDOW ClientMessage.
223 * Fixed a nonfatal buffer overrun in lament (note:
224 lament still doesn't work with MesaGL 3.0: it dies in
225 lambda_textured_triangle1(), which is Mesa's bug, not
227 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
228 for other folks to generate RPMs.
229 * Made the password code work on HPUX in the situation
230 where: ``enhanced security'' is available; but not
231 used; but the user typed a password more than 8
232 characters long anyway. FTSOHPUX.
233 Changes since 3.02: * Made locking work when passwd aging is enabled.
234 * Added support for PAM (Pluggable Authentication
235 Modules.) It is still turned off by default, though,
236 since it doesn't seem to work on Solaris 2.6, and has
237 been behaving erratically on Red Hat 5.1.
238 * Made each possible authentication method be tried in
239 turn until one succeeds; this means that Kerberos is
240 being used, we will first check Kerberos, and if that
241 fails, will then consult the local password file.
243 * Save and restore the bits under the passwd dialog,
244 to avoid leaving a black rectangle behind when
245 unlocking is cancelled.
246 Changes since 3.01: * Not everyone has sys/select.h, sigh...
247 Changes since 3.00: * Some fixes to `reflect'.
249 * Made it log unsuccessful attempts to unlock the screen
251 * Fixed a bug where `xscreensaver-demo' could be seeing
252 a different programs list than `xscreensaver' did.
253 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
254 or Athena: demo-mode and the preferences panel are no
255 longer built in to the daemon, but are now handled by
256 an external program, `xscreensaver-demo'.
257 (I decided that this, along with the recent addition
258 of the `.xscreensaver' config file, justified bumping
259 the version number to 3.00, since this is a fairly
260 major architectural change.)
261 * Lines in the `*programs' resource may now begin with
262 the character "-", meaning "don't run this hack."
263 In this way, it's possible to disable a hack without
264 throwing away the information about it (making it
265 easier to change your mind later.) Eventually the
266 preferences/demo mode GUI should represent this as a
267 checkbox or something.
268 * Fixed a short race condition where it was possible for
269 xscreensaver to die with a BadWindow error if it was
270 blanking the screen just as another window was being
272 * Made it possible to disable specific modes in `bsod'.
273 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
274 many valves. Made the viewpoint in `pipes' be selected
275 randomly instead of always being -10 degrees.
276 * Fixed a bug in the XSHM code, in the case where the
277 server supports the XSHM extension but is not the same
278 machine as the client.
279 * Made `rd-bomb' default to taking up the whole screen.
280 * Made it not try to do fading/unfading if no PseudoColor
282 * Initial attempt at supporting VT-locking (doesn't work
284 * Eliminated the `captureStdout' resource; now
285 `captureStderr' controls both streams.
286 * Added `-capture-stderr' and `-no-capture-stderr'
287 command-line arguments.
288 * Added `glplanet' hack.
289 * When a hack is selected with `xscreensaver-command
290 -select', that hack will be used until further notice
291 (until the saver turns off, or another activation
293 Changes since 2.32: * Made `xscreensaver-command' print error messages:
294 the xscreensaver daemon now responds to ClientMessage
295 events by writing a response message on a window
296 property, instead of just writing to its stderr.
297 * Made the ~/.xscreensaver file be automatically reloaded
298 when the file date changes.
299 * The password dialog and splash screen no longer depend
300 on Motif or Athena. This should clear up a number of
301 focus problems, and is the first step on the path
302 toward moving all of the Motif/Athena/whatever code
303 out of the xscreensaver daemon, and into external
305 * Don't complain about LessTif 0.86 any more, since the
306 new password dialog makes that problem go away.
307 * Configure tweaks for Irix 6.5, SunOS 5.something.
308 * New `-reflect' option to `distort'.
309 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
310 so that the Preferences panel can save its settings.
311 * New version of `rubik'.
312 * Added `-select N' argument to `xscreensaver-command'.
313 * Oops, left out some of the `bubbles3d' files...
314 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
315 * Made configure warn against MesaGL 2.6.
316 * Fixed X error at startup when using non-default visual.
317 * New version of `crystal', `ant', and `atlantis' from
319 * New hack, `bubble3d'.
320 * Added some new modes to `bsod'.
321 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
322 to be after Motif instead of before (Lesstif on Irix
324 Changes since 2.28: * Work around a bash bug in configure.
325 * Tweaked HPUX paths again. FTSOHPUX.
326 * Made configure recommend against LessTif 0.86, due
327 to a bug in that version that causes a security hole
328 in the screen locking code. LessTif 0.87 will fix it.
329 * Made all of the `--with' options to `configure' accept
330 a directory option as well (so that --with-motif=/FOO
331 will add -I/FOO/include -L/FOO/lib). I believe this is
332 the Configure Party Line of how do to such things.
333 * Fixed a bug where the mouse was left un-grabbed
334 after the first time the graphics hack was changed
335 (simplified all of the mouse-grabbing logic.)
336 * Maybe possibly perhaps made `vidwhacker' really not
337 leave stray xv windows around. This time for sure.
338 * Added a new erase mode (random dots fizzling out.)
339 * Added `-prefs' argument to `xscreensaver-command',
340 that brings up the Preferences dialog directly (it
341 seems that nobody ever noticed the `Preferences' button
342 on the Demo Mode dialog, maybe this will help.)
343 * Added a splash screen. Turn it off with *splash:false.
344 Changes since 2.27: * Better macsbug text in `bsod'.
345 * New version of `distort' with many new modes.
346 * Plugged a leak in `coral'.
347 * Tweaked configure for HPUX.
348 * Removed some compiler warnings.
349 * More consistent usage of stderr versus stdout.
350 * More diagnostics should an X error occur.
351 * Fixed a possible crash in SGI-specific unfading code.
352 Changes since 2.26: * Improved version of `distort'.
353 * Made `lament' compile against OpenGL 1.0 (though it
354 still requires 1.1 to work properly.)
355 * Updated my email address and home page.
356 Changes since 2.24: * Improved motion in `rd-bomb'.
357 * Added XSHM (shared memory extension) support to the
358 `distort', `interference', `moire', `rd-bomb', and
359 `swirl' hacks, which speeds them up a bit.
360 * Added `lament' hack.
361 Changes since 2.23: * Tweaked the order of the -L options again.
362 * Cleaned up configure's `--help' message.
363 * Added `kumppa' hack.
364 * Smarter maze-solving algorithm in `maze'.
365 * Took `xlyap' out of the default list of hacks, since
366 it's just incredibly buggy (and slow.) Maybe someday
367 someone will fix it...
368 * Added `distort' hack, but didn't add it to the default
369 list (yet) because it's still too slow.
370 * Made the Athena demo dialog look more like the Motif
371 version; it has a text-entry field now, too.
372 * Made the Athena password dialog echo asterisks, like
373 Motif does, instead of using a flyspeck font.
374 * Some random configure tweaks.
375 * Added a `timestamp' resource that makes the `-verbose'
376 messages include the time at which they were printed.
377 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
378 let the user's "*background" resource show through.
379 Fixed it in a different way.
380 Changes since 2.21: * Added support for the DPMS server extension (Display
381 Power Management System.)
382 * Made configure advertize the `--enable-subdir' option a
383 little more, since that seemed to cause some people
384 stress. Also, made that directory be built into the
385 xscreensaver executable, as a hardcoded prefix to
386 $PATH. (Might help, shouldn't hurt.)
387 * Made configure prefer the two-arg gettimeofday to the
388 one-arg version, since AIX doesn't have any prototypes.
389 * Made it work with Xaw3d (the 3D Athena library.)
390 * Made `make install' create directories as necessary.
391 * New version of lmorph from Sverre.
392 * Added `crystal' and `discreet' hacks from xlockmore.
393 * Added a new mode to `bsod'.
394 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
395 (It now describes the two states as "screen blanked
396 since..." and "screen non-blanked since..." instead of
397 "active since..." and "inactive since..." which a lot
398 of people interpreted as meaning the opposite of what
400 * Improved some error messages, in the hopes of making
401 the distinction between the xscreensaver and
402 xscreensaver-command programs more obvious.
403 * Rewrote (and reorganized) parts of the xscreensaver and
404 xscreensaver-command manual pages.
405 * Renamed xscreensaver's `-lock' command-line option to
406 be `-lock-mode', to avoid confusion with the `-lock'
407 option to xscreensaver-command, which does a totally
409 * Removed xscreensaver's `-demo' command-line option for
410 a similar reason; use `xscreensaver-command -demo'
412 * Disabled SGI's ``scheme'' nonsense in a better way than
413 fully-qualifying the background colors in every single
415 * Fixed some other minor cosmetic problems when *sgiMode
417 * Fixed an X error in `bsod -root' (how ironic...)
418 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
419 grabbed properly (meaning the window manager menu could
420 pop up over the demo-mode display.)
421 * Fixed a bug that made the stderr output sometimes get
423 * Fixed a bug that made the demo-mode scrollbar move too
425 * Protected against a possible buffer overflow.
426 * Made `vidwhacker' not leave stray xv windows around.
427 * New version of `ant' so that Bagley doesn't calve.
428 * Make configure on AIX get XShm from the right library.
429 Changes since 2.18: * One file was missing from the tar file. Fixed.
430 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
431 * Added `epicycle' hack.
432 * Added `interference' hack.
433 * Added `truchet' hack.
435 * Added some new modes to `vidwhacker'.
436 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
437 can draw on arbitrary externally-provided windows.
438 * Synched with xlockmore 4.11a01.
440 * Added `atlantis' GL hack.
441 * Renamed `puzzle' hack to `jigsaw', since xlock already
442 had a different mode called `puzzle'.
443 * Made it self-configure properly when Motif 2.1.0 is
444 being used (requires -lXp now, sigh...)
445 Changes since 2.15: * Made `flag' able to do XPM images.
446 * New look for the xscreensaver logo (`xroger').
447 * Fixed compilation error on Suns with adjunct passwords.
448 * Got multi-architecture builds working again.
449 * Some configure tweaks for building on HPUX and Solaris.
450 * Fixed bug in decayscreen.
451 * Fixed typo in passwd.c.
452 * Made `cynosure' not die when colormap is full.
453 Changes since 2.14: * Added `cynosure' hack.
454 * Added `moire2' hack.
455 * Tweaked `erase.c' some more.
456 * Made unfading a bit smoother.
457 * Added `vidwhacker' hack (not installed by default.)
458 * Added `stairs' hack.
459 * Split `escher' into `cage' and `moebius', as per
461 * Changed subprocess handling to use sigaction() instead
462 of signal() if it's available (this is necessary for
463 SCO but should work fine on other systems too.)
464 * Various other tweaks.
465 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
466 * Put in some kludges to work around a LessTif bug.
467 * XScreenSaver is known to work with LessTif 0.82 now.
468 * Made fading work on high-end SGI video hardware.
469 * Fixed another SGI-specific bug in screen grabbing;
470 will the madness never cease?
471 * Fixed another crash in `xlyap'.
472 Changes since 2.12: * Made `decayscreen' do directions other than down.
474 * Fixed a crash in `xlyap'.
475 * Added CDE info to the man page, removed `cde.txt'.
476 * Configure tweaks for Zippy.
477 * Turned off the signal handling in `bubbles' because
478 it was sometimes failing to die.
479 * Added `hacks/xscreensaver-sgigl.c' to make it possible
480 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
481 with xscreensaver. Finally!
482 * Fixed a buffer overrun in the locking code that some
483 wily, malicious cracker must have slipped in.
484 * Disabled Motif drag-and-drool in the dialog box
485 buttons, since it's broken in some old versions of
487 Changes since 2.11: * Added `README.debugging'.
488 * Added `puzzle' hack.
489 * Added `xlyap' hack.
490 * Added `default-n' as a visual name, so that one can
491 have -install on by default, but turn it off for
492 certain poorly-behaved hacks (like xv.)
493 * Added support for grabbing frames of external video
494 (on SGI) to the screen-grabbing hacks (decayscreen,
495 slidescreen, slip, blitspin, and puzzle.)
496 * Improved look of tiles in `slidescreen'; fixed its
497 color allocation problem.
498 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
499 * Added `lissie', `mountain', `triangle', `worm',
500 `rotor', and `ant' from xlockmore.
501 * Updated `sierpinski', `galaxy', and `lisa'.
502 * Thickened the lines in `braid' and `lmorph'.
503 * Updated VMS makefiles.
504 * Renamed `fract' to `vines'.
505 * Added `xjack' hack.
506 * Made a few more hacks use erase.c, and added a few
508 * Fixed compilation problem with Sun's version of OpenGL.
509 * Added ability to use sigaction() instead of signal()
510 to work around a SCO kernel bug.
511 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
512 * Configure tweaks for *BSD.
513 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
514 * New version of `maze' with some new algorithms.
515 * New colorized version of `rocks'.
516 * Fixed a bug in qix on 64-bit machines.
517 * Fixed a bug in the -time option.
518 * Fixed a bug in configure related to LessTif.
519 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
520 * Made multi-architecture ($VPATH) builds work properly.
521 * Merged new GL stuff from xlockmore (rubik, morph3d.)
522 * Fixed intermittent crashes in `imsmap' and `munch'.
523 * Added `fadeplot' hack from xlockmore.
524 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
525 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
526 configure to detect the extra-random -Xss library.
527 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
528 * Fixed low-color behavior of `goop', `pyro', `starfish',
529 `greynetic', `flame', `halo', and `moire'.
530 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
531 * Added `munch' hack.
532 * Added basic dependencies to the Makefile.in files.
533 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
534 * Made the yow/fortune program be a configure option.
535 * Various configure tweaks.
536 Changes since 2.00: * Added `goop' and `starfish' hacks.
537 * Added colomap cycling to `halo'.
538 * Made `attraction' use the new colormap allocator.
539 * Added better $PATH diagnostics.
540 * There was a bug in frand! Color selection should be
542 Changes since 1.34: * Converted to use `configure' instead of `imake'.
543 * ANSI C is now required.
544 * Added Kerberos locking support, from Nat Lanza.
545 * Made the stderr text use overlay planes, if possible.
546 * Reworked the xlockmore compatibility stuff again.
547 * Added `gears', `superquadrics', `escher', `pipes',
548 and `sproingies' hacks (depend on OpenGL.)
549 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
550 Changes since 1.32: * Made it work with multi-headed displays.
551 * Generalized sub-process management (Unix sucks!)
552 * Added interactive mouse frobbing to Julia.
553 * Added (untested) support for HPUX shadow passwords.
554 * Made normal non-shadow passwords be checked if the
555 shadow passwords aren't accessible for some reason.
556 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
557 made it possible to specify the desired visual on a
559 * Cleaned up / restructured the driver: no more globals.
560 * Made the Motif and Athena dialogs share more code.
561 * Probably fixed some Athena colormap-installation bugs.
562 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
563 * Fixed divide-by-zero in bright random colormaps.
564 * Added an improved version of xlock's `flag' hack.
565 * Made unfading work better, and not flicker on SGIs.
566 * Added `sphere', `forest', `lisa' hacks from xlockmore.
567 * Added (untested) support for SunOS Adjunct passwords.
568 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
569 * Cleaned up xlockmore compatibility layer.
570 * Made `blitspin' able to grab an image off the screen.
571 * Ported `swirl' and `bouboule' hacks from xlockmore.
572 * Made the driver more careful about not leaving bits on
573 the screen, or allowing other windows to raise
574 themselves: it now re-blanks the screen every so often.
575 * Added `-time' option to `xscreensaver-command'.
576 * Improved SGI screen-grabbing some more: now it can grab
577 TrueColor screens into PseudoColor windows and have the
578 colors still come out semi-reasonably.
579 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
580 SGIs when windows of different visuals are present, by
581 using the XReadDisplay() extension to get a true 24-bit
582 image out of the frame buffer.
583 * Made `noseguy' be in color, if compiled with XPM.
584 * Ported `braid', `drift', `fract', `galaxy', `grav',
585 `ifs', `julia', `laser', `lightning', `penrose',
586 `sierpinski', `slip', `spiral', and `strange' hacks
588 * Merged `hopalong' hack with a more recent version.
590 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
591 * Merged in support for non-Motif locking and demo mode.
592 * Made `blitspin' and `bubbles' work in TrueColor.
593 * Fixed a stupid bug I introduced in `imsmap'.
594 * Added `poly' and `gravity' options to `qix'.
595 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
596 * Made `fade' and `unfade' work on 8-bit SGIs.
597 * Made the dialog boxes more Motify.
598 * Added `bubbles' hack.
599 Changes since 1.25: * Added `lmorph' hack.
600 * Added viscosity and mouse-control to attraction.
601 * Fixed possible bad color choices in qix and attraction.
602 * Added ramp-mode to halo.
603 * Added a new RNG, which is faster and more portable
604 than using the RNG in libc.
605 * Made locking work on SCO.
606 * Various other minor tweaks that I don't remember.
607 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
608 and present them on the screensaver window itself.
609 * Made demo mode work correctly with non-default visuals
610 and color maps, instead of always using the defaults.
611 * Added -visual argument to all included screenhacks.
612 * Support for the R6 MIT-SCREEN-SAVER server extension.
613 * Made the demo mode list scroll properly.
614 * Added `pedal' hack.
615 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
616 decayscreen, and xroger. Fixed apparent conservation-
617 of-mass problem in pyro; made the shrapnel round.
618 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
619 Changes since 1.21: * Minor tweaks for X11R6.
620 * Fixes for non-default visuals.
621 Changes since 1.20: * Fixed bug in color blitspin; added default image.
622 * Added diagnostics to noseguy. Fixed off-by-one
623 error in flame. Added some missing casts.
624 Changes since 1.18: * Added `flame' hack.
625 * Fixed a minor Motif dialog text field bug.
626 * Fixed yet another XPointer-not-defined-in-R4 bug.
627 Changes since 1.17: * Added support for shadow password files.
628 * Fixed some Motif-related locking bugs.
629 * Added diagnostics when locking is disabled.
630 * Made blitspin able to use the XPM library.
631 * Added `decayscreen' hack.
632 Changes since 1.16: * Added `halo' hack.
633 Changes since 1.15: * Portability fixes.
634 Changes since 1.14: * Broke the driver up into more source files.
635 * Moved the hacks into their own directory.
636 * Made all `time' parameters accept the 00:00:00 syntax,
637 so that even the parameters which are normally read as
638 minutes can be specified in seconds.
639 * Added colormap cycling to `imsmap'.
640 * Made hyper work with K&R compilers.
641 Changes since 1.13: * Added `orbit' option to `attraction' hack.
642 * Added `lock-timeout' option.
643 * Cleaned up options of `maze' hack.
644 Changes since 1.8: * Added demo mode, and locking.
646 * Added `norotate' option to `rocks' hack.