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 3.19: * Added new hack `ripples' and `sierpinski3d'.
81 * Made `xscreensaver-command -exit' be silent when no
82 screen saver was running (instead of complaining.)
83 * Made `webcollage' and `vidwhacker' use `xloadimage'
84 when available (in addition to `xli' and `xv'.)
85 * Improved memory usage in `petri' and gave it a hard
86 cap on how much memory it can allocate.
87 * Added `-watch' option to `xscreensaver-command'.
88 * Made `xscreensaver-demo' come up with the
89 most-recently-run hack selected by default.
90 * Rewrote the Gtk version of `xscreensaver-demo'.
91 It's a lot easier to use now.
92 * Extended the format of the programs list in the
93 .xscreensaver file, for the benefit of the new
94 capabilities of `xscreensaver-demo'.
95 NOTE: you might want to delete your ~/.xscreensaver
96 file and allow it to be re-created! The old one
97 should still work, but xscreensaver-demo won't be as
99 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
100 * New hack, `extrusion'.
101 * Some of the web sites that `webcollage' was using as
102 its sources changed formats; tweaked it to understand
104 * Added typeahead in the password dialog: if the screen
105 is locked, and you unlock it by typing a character,
106 that key will be automatically inserted in the
107 password dialog (unless it is Return, Enter, Space,
108 or a non-printing key like Shift.)
109 * Made `xmatrix' take a `-small' option, since some
110 folks with tiny screens prefer a smaller font.
111 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
112 * Added `ccurve', `blaster', and `bumps' hacks.
113 * Replaced `forest' hack with a rewritten version.
114 * Worked around a Xinerama server bug.
115 * Fixed a bug I introduced in 3.10 that caused some
116 hacks to print out superfluous warnings about not
117 having gotten enough colors.
118 * Made `sproingies' obey the `-delay' option.
119 * Fixed a portability bug in `shadebobs'.
120 * Made `webcollage' and `vidwhacker' use `xli' in
121 preference to `xv', if it is available.
122 * Added a new source of images to `webcollage'.
123 * If running under KDE, xscreensaver will add itself to
124 KDE's list of screensavers (via xscreensaver.kss.)
125 * Improved detection of GL libraries.
126 * Made the password dialog include the date and time.
127 Changes since 3.16: * New version of `webcollage' -- deals better with
128 corrupted images, and can use an http proxy.
129 * New hack, `xsublim' (run it in the background,
130 rather than adding it to the programs list.)
131 * The xscreensaver daemon was leaking a file descriptor
132 each time you edited your .xscreensaver file. Fixed.
133 Changes since 3.15: * New version of `shadebobs'.
134 * Improved image selection in `webcollage', and sped it
136 * Made configure find the right version of perl.
137 * Rewrote the CGI part of `webcollage'.
138 * `make clean' was deleting some things it shouldn't.
139 * Fixed a typo in the default programs list.
140 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
141 * Added a `-stdout' arg to `vidwhacker' so that it can
142 be used in a pipeline.
143 * Made `petri' use less memory.
144 Changes since 3.13: * Various improvements to the Gtk port.
145 * Turned off PAM by default on Solaris, since PAM seems
146 generally to be misconfigured out-of-the-box.
147 * Made the `--without-gtk' configure option work.
148 * Made configure check the Gtk version number, since it
150 * Fixed a bug in the code that attempted to prevent
151 changes of screen resolution while the screen is
153 * Fixed a race condition in `xscreensaver-demo' that
154 could cause an X error at startup.
155 * Added `-transparent' option to `deluxe'.
156 * Added `petri' hack.
157 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
158 * Made it possible to build Motif, Gtk, and Athena
159 versions of `xscreensaver-demo' in the same directory
160 without reconfiguring.
161 * Made `xscreensaver-demo' chase symlinks before writing
162 the .xscreensaver file, so that if .xscreensaver is
163 itself a symlink, the underlying file will be replaced
165 * Some Makefile and configure tweaks for Solaris and
167 * Made it possible to set the fire color in `xflame'.
168 * Made transparency work in TrueColor (for `goop' and
170 * Fixed a multi-head bug introduced by the virtual
172 Changes since 3.11: * Made it so that you can't scroll the screen while the
173 lock dialog is up (with XFree86 virtual viewports.)
174 * Fixed a bug in `flag' that caused bob's chin to get cut
175 off after a few iterations.
176 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
177 less like a computer screen and more like the
178 typewritten paper it's supposed to be.
179 * New version of `pulsar'.
180 * Fixed Solaris compilation problem in `phosphor'.
181 * Made xscreensaver notice XFree86's virtual root window
182 hack, so that if the X server's root window is larger
183 than the monitor's displayable resolution, the screen
184 saver will limit itself to the area that actually
185 appears on the screen.
186 * Made the xscreensaver daemon do a better job of
187 picking the visual class that should be used for GL
188 programs. Less user intervention should be needed
189 now: you can use the logical visual name `GL' instead
190 of having to figure out by hand which one to use.
191 * Oops, the visual was defaulting to "best" instead of
192 "default", because the .xscreensaver file was not being
193 loaded quite early enough.
194 * Made configure figure out how to build icmp ping
195 support into the `sonar' hack automatically.
196 * Made warnings about not being able to read shadow
197 passwords not be printed if compiled with PAM support.
198 * Improved PAM startup diagnostics.
199 * Worked around the Solaris PAM bug that was causing
200 crashes there, so now PAM is turned on by default.
201 * Made configure detect the number of arguments that
202 pam_strerror() takes, since on Linux, this apparently
203 changed between 2.0 and 2.2, sigh.
204 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
205 as well as "keyboard".
206 * Made xscreensaver notice when there has been a sudden
207 large jump in wall-clock time, and if so, lock right
208 away, instead of waiting for "lockTimeout" to expire
209 first. (Laptops need this for safer recovery from
211 * Added `-throttle' option to `xscreensaver-command'.
212 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
213 * Fixed a bug in the color allocator that sometimes
214 caused `starfish' to fall back to monochrome.
215 * Reduced the amount of code that runs before root
216 privileges are disavowed: "normal" and "shadow"
217 passwords now do some initialization as root, but the
218 PAM and Kerberos authorization schemes will be
219 initialized while running as "nobody". Supposedly
220 this closes a potential security hole when using
222 * Added some more sanity checking to configure.
223 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
224 `spotlight', and `critical' hacks.
225 * Added some new modes to `decayscreen'.
226 * Made `deluxe' work in monochrome.
227 * Generalized usage of the Double-Buffer server extension
228 in several hacks (`compass', `deluxe', `interference',
229 `kumppa', and `moire2'.)
230 * Fixed another visual-depth problem in `rd-bomb'.
231 * The screen saver will now defer blanking if neither
232 the keyboard nor the mouse could be grabbed. Instead,
233 it will just try again in a few minutes. This fixes
234 a bad interaction between xscreensaver and programs
235 like VMware that hold the mouse and keyboard grabbed
237 * Added a new erase mode (expanding spiral.)
238 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
239 * Added `penetrate' and `deluxe' hacks.
240 * When linking against Motif 2.x, also link against XPM.
241 * Added support for using /proc/interrupts for idle
242 detection on Linux. Now xscreensaver shouldn't kick
243 in when the user is active on a non-X virtual console.
244 * Upgraded to autoconf 2.13.
245 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
246 in properly; check for _Xsetlocale in -lXintl.)
247 * Portability fixes for sonar.c.
248 * Fixed a compilation problem when you have GL but don't
250 * Made configure notice when MesaGL requires -lpthread.
251 * Made `flame' ignore SIGFPE (not sure if this is the
252 right fix; it seems only to be needed on FreeBSD.)
253 * Kludged `rd-bomb' work on visuals that are of depth 24
254 but that *do not* support pixmaps of depth 32.
255 * Fixed `halo' to work properly in TrueColor.
256 * Changed `xscreensaver.spec' to install the hacks in
257 /usr/X11R6/lib/xscreensaver/ by default, since that's
258 where recent Red Hat distributions put them.
260 * Updated versions of `crystal', `hopalong', and `flow'
262 * Imported `demon' and `loop' modes from xlockmore.
263 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
264 it was always installing a colormap if the
265 `installColormap' preference was set, meaning that
266 `xearth', `xv' and friends were using the wrong
267 colors on 8-bit systems.
268 * Turned off HAVE_PING in `sonar', since it compiles
269 on some Linux systems, but not others of similar
271 Changes since 3.04: * Fixed an off-by-1 in `distort'.
272 * Added `sonar' hack.
273 * New version of `glplanet' (with stars.)
274 * Made all hacks exit when you type `q' or `ESC' at them,
275 and made them obey the WM_DELETE_WINDOW ClientMessage.
276 * Fixed a nonfatal buffer overrun in lament (note:
277 lament still doesn't work with MesaGL 3.0: it dies in
278 lambda_textured_triangle1(), which is Mesa's bug, not
280 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
281 for other folks to generate RPMs.
282 * Made the password code work on HPUX in the situation
283 where: ``enhanced security'' is available; but not
284 used; but the user typed a password more than 8
285 characters long anyway. FTSOHPUX.
286 Changes since 3.02: * Made locking work when passwd aging is enabled.
287 * Added support for PAM (Pluggable Authentication
288 Modules.) It is still turned off by default, though,
289 since it doesn't seem to work on Solaris 2.6, and has
290 been behaving erratically on Red Hat 5.1.
291 * Made each possible authentication method be tried in
292 turn until one succeeds; this means that Kerberos is
293 being used, we will first check Kerberos, and if that
294 fails, will then consult the local password file.
296 * Save and restore the bits under the passwd dialog,
297 to avoid leaving a black rectangle behind when
298 unlocking is cancelled.
299 Changes since 3.01: * Not everyone has sys/select.h, sigh...
300 Changes since 3.00: * Some fixes to `reflect'.
302 * Made it log unsuccessful attempts to unlock the screen
304 * Fixed a bug where `xscreensaver-demo' could be seeing
305 a different programs list than `xscreensaver' did.
306 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
307 or Athena: demo-mode and the preferences panel are no
308 longer built in to the daemon, but are now handled by
309 an external program, `xscreensaver-demo'.
310 (I decided that this, along with the recent addition
311 of the `.xscreensaver' config file, justified bumping
312 the version number to 3.00, since this is a fairly
313 major architectural change.)
314 * Lines in the `*programs' resource may now begin with
315 the character "-", meaning "don't run this hack."
316 In this way, it's possible to disable a hack without
317 throwing away the information about it (making it
318 easier to change your mind later.) Eventually the
319 preferences/demo mode GUI should represent this as a
320 checkbox or something.
321 * Fixed a short race condition where it was possible for
322 xscreensaver to die with a BadWindow error if it was
323 blanking the screen just as another window was being
325 * Made it possible to disable specific modes in `bsod'.
326 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
327 many valves. Made the viewpoint in `pipes' be selected
328 randomly instead of always being -10 degrees.
329 * Fixed a bug in the XSHM code, in the case where the
330 server supports the XSHM extension but is not the same
331 machine as the client.
332 * Made `rd-bomb' default to taking up the whole screen.
333 * Made it not try to do fading/unfading if no PseudoColor
335 * Initial attempt at supporting VT-locking (doesn't work
337 * Eliminated the `captureStdout' resource; now
338 `captureStderr' controls both streams.
339 * Added `-capture-stderr' and `-no-capture-stderr'
340 command-line arguments.
341 * Added `glplanet' hack.
342 * When a hack is selected with `xscreensaver-command
343 -select', that hack will be used until further notice
344 (until the saver turns off, or another activation
346 Changes since 2.32: * Made `xscreensaver-command' print error messages:
347 the xscreensaver daemon now responds to ClientMessage
348 events by writing a response message on a window
349 property, instead of just writing to its stderr.
350 * Made the ~/.xscreensaver file be automatically reloaded
351 when the file date changes.
352 * The password dialog and splash screen no longer depend
353 on Motif or Athena. This should clear up a number of
354 focus problems, and is the first step on the path
355 toward moving all of the Motif/Athena/whatever code
356 out of the xscreensaver daemon, and into external
358 * Don't complain about LessTif 0.86 any more, since the
359 new password dialog makes that problem go away.
360 * Configure tweaks for Irix 6.5, SunOS 5.something.
361 * New `-reflect' option to `distort'.
362 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
363 so that the Preferences panel can save its settings.
364 * New version of `rubik'.
365 * Added `-select N' argument to `xscreensaver-command'.
366 * Oops, left out some of the `bubbles3d' files...
367 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
368 * Made configure warn against MesaGL 2.6.
369 * Fixed X error at startup when using non-default visual.
370 * New version of `crystal', `ant', and `atlantis' from
372 * New hack, `bubble3d'.
373 * Added some new modes to `bsod'.
374 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
375 to be after Motif instead of before (Lesstif on Irix
377 Changes since 2.28: * Work around a bash bug in configure.
378 * Tweaked HPUX paths again. FTSOHPUX.
379 * Made configure recommend against LessTif 0.86, due
380 to a bug in that version that causes a security hole
381 in the screen locking code. LessTif 0.87 will fix it.
382 * Made all of the `--with' options to `configure' accept
383 a directory option as well (so that --with-motif=/FOO
384 will add -I/FOO/include -L/FOO/lib). I believe this is
385 the Configure Party Line of how do to such things.
386 * Fixed a bug where the mouse was left un-grabbed
387 after the first time the graphics hack was changed
388 (simplified all of the mouse-grabbing logic.)
389 * Maybe possibly perhaps made `vidwhacker' really not
390 leave stray xv windows around. This time for sure.
391 * Added a new erase mode (random dots fizzling out.)
392 * Added `-prefs' argument to `xscreensaver-command',
393 that brings up the Preferences dialog directly (it
394 seems that nobody ever noticed the `Preferences' button
395 on the Demo Mode dialog, maybe this will help.)
396 * Added a splash screen. Turn it off with *splash:false.
397 Changes since 2.27: * Better macsbug text in `bsod'.
398 * New version of `distort' with many new modes.
399 * Plugged a leak in `coral'.
400 * Tweaked configure for HPUX.
401 * Removed some compiler warnings.
402 * More consistent usage of stderr versus stdout.
403 * More diagnostics should an X error occur.
404 * Fixed a possible crash in SGI-specific unfading code.
405 Changes since 2.26: * Improved version of `distort'.
406 * Made `lament' compile against OpenGL 1.0 (though it
407 still requires 1.1 to work properly.)
408 * Updated my email address and home page.
409 Changes since 2.24: * Improved motion in `rd-bomb'.
410 * Added XSHM (shared memory extension) support to the
411 `distort', `interference', `moire', `rd-bomb', and
412 `swirl' hacks, which speeds them up a bit.
413 * Added `lament' hack.
414 Changes since 2.23: * Tweaked the order of the -L options again.
415 * Cleaned up configure's `--help' message.
416 * Added `kumppa' hack.
417 * Smarter maze-solving algorithm in `maze'.
418 * Took `xlyap' out of the default list of hacks, since
419 it's just incredibly buggy (and slow.) Maybe someday
420 someone will fix it...
421 * Added `distort' hack, but didn't add it to the default
422 list (yet) because it's still too slow.
423 * Made the Athena demo dialog look more like the Motif
424 version; it has a text-entry field now, too.
425 * Made the Athena password dialog echo asterisks, like
426 Motif does, instead of using a flyspeck font.
427 * Some random configure tweaks.
428 * Added a `timestamp' resource that makes the `-verbose'
429 messages include the time at which they were printed.
430 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
431 let the user's "*background" resource show through.
432 Fixed it in a different way.
433 Changes since 2.21: * Added support for the DPMS server extension (Display
434 Power Management System.)
435 * Made configure advertize the `--enable-subdir' option a
436 little more, since that seemed to cause some people
437 stress. Also, made that directory be built into the
438 xscreensaver executable, as a hardcoded prefix to
439 $PATH. (Might help, shouldn't hurt.)
440 * Made configure prefer the two-arg gettimeofday to the
441 one-arg version, since AIX doesn't have any prototypes.
442 * Made it work with Xaw3d (the 3D Athena library.)
443 * Made `make install' create directories as necessary.
444 * New version of lmorph from Sverre.
445 * Added `crystal' and `discreet' hacks from xlockmore.
446 * Added a new mode to `bsod'.
447 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
448 (It now describes the two states as "screen blanked
449 since..." and "screen non-blanked since..." instead of
450 "active since..." and "inactive since..." which a lot
451 of people interpreted as meaning the opposite of what
453 * Improved some error messages, in the hopes of making
454 the distinction between the xscreensaver and
455 xscreensaver-command programs more obvious.
456 * Rewrote (and reorganized) parts of the xscreensaver and
457 xscreensaver-command manual pages.
458 * Renamed xscreensaver's `-lock' command-line option to
459 be `-lock-mode', to avoid confusion with the `-lock'
460 option to xscreensaver-command, which does a totally
462 * Removed xscreensaver's `-demo' command-line option for
463 a similar reason; use `xscreensaver-command -demo'
465 * Disabled SGI's ``scheme'' nonsense in a better way than
466 fully-qualifying the background colors in every single
468 * Fixed some other minor cosmetic problems when *sgiMode
470 * Fixed an X error in `bsod -root' (how ironic...)
471 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
472 grabbed properly (meaning the window manager menu could
473 pop up over the demo-mode display.)
474 * Fixed a bug that made the stderr output sometimes get
476 * Fixed a bug that made the demo-mode scrollbar move too
478 * Protected against a possible buffer overflow.
479 * Made `vidwhacker' not leave stray xv windows around.
480 * New version of `ant' so that Bagley doesn't calve.
481 * Make configure on AIX get XShm from the right library.
482 Changes since 2.18: * One file was missing from the tar file. Fixed.
483 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
484 * Added `epicycle' hack.
485 * Added `interference' hack.
486 * Added `truchet' hack.
488 * Added some new modes to `vidwhacker'.
489 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
490 can draw on arbitrary externally-provided windows.
491 * Synched with xlockmore 4.11a01.
493 * Added `atlantis' GL hack.
494 * Renamed `puzzle' hack to `jigsaw', since xlock already
495 had a different mode called `puzzle'.
496 * Made it self-configure properly when Motif 2.1.0 is
497 being used (requires -lXp now, sigh...)
498 Changes since 2.15: * Made `flag' able to do XPM images.
499 * New look for the xscreensaver logo (`xroger').
500 * Fixed compilation error on Suns with adjunct passwords.
501 * Got multi-architecture builds working again.
502 * Some configure tweaks for building on HPUX and Solaris.
503 * Fixed bug in decayscreen.
504 * Fixed typo in passwd.c.
505 * Made `cynosure' not die when colormap is full.
506 Changes since 2.14: * Added `cynosure' hack.
507 * Added `moire2' hack.
508 * Tweaked `erase.c' some more.
509 * Made unfading a bit smoother.
510 * Added `vidwhacker' hack (not installed by default.)
511 * Added `stairs' hack.
512 * Split `escher' into `cage' and `moebius', as per
514 * Changed subprocess handling to use sigaction() instead
515 of signal() if it's available (this is necessary for
516 SCO but should work fine on other systems too.)
517 * Various other tweaks.
518 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
519 * Put in some kludges to work around a LessTif bug.
520 * XScreenSaver is known to work with LessTif 0.82 now.
521 * Made fading work on high-end SGI video hardware.
522 * Fixed another SGI-specific bug in screen grabbing;
523 will the madness never cease?
524 * Fixed another crash in `xlyap'.
525 Changes since 2.12: * Made `decayscreen' do directions other than down.
527 * Fixed a crash in `xlyap'.
528 * Added CDE info to the man page, removed `cde.txt'.
529 * Configure tweaks for Zippy.
530 * Turned off the signal handling in `bubbles' because
531 it was sometimes failing to die.
532 * Added `hacks/xscreensaver-sgigl.c' to make it possible
533 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
534 with xscreensaver. Finally!
535 * Fixed a buffer overrun in the locking code that some
536 wily, malicious cracker must have slipped in.
537 * Disabled Motif drag-and-drool in the dialog box
538 buttons, since it's broken in some old versions of
540 Changes since 2.11: * Added `README.debugging'.
541 * Added `puzzle' hack.
542 * Added `xlyap' hack.
543 * Added `default-n' as a visual name, so that one can
544 have -install on by default, but turn it off for
545 certain poorly-behaved hacks (like xv.)
546 * Added support for grabbing frames of external video
547 (on SGI) to the screen-grabbing hacks (decayscreen,
548 slidescreen, slip, blitspin, and puzzle.)
549 * Improved look of tiles in `slidescreen'; fixed its
550 color allocation problem.
551 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
552 * Added `lissie', `mountain', `triangle', `worm',
553 `rotor', and `ant' from xlockmore.
554 * Updated `sierpinski', `galaxy', and `lisa'.
555 * Thickened the lines in `braid' and `lmorph'.
556 * Updated VMS makefiles.
557 * Renamed `fract' to `vines'.
558 * Added `xjack' hack.
559 * Made a few more hacks use erase.c, and added a few
561 * Fixed compilation problem with Sun's version of OpenGL.
562 * Added ability to use sigaction() instead of signal()
563 to work around a SCO kernel bug.
564 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
565 * Configure tweaks for *BSD.
566 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
567 * New version of `maze' with some new algorithms.
568 * New colorized version of `rocks'.
569 * Fixed a bug in qix on 64-bit machines.
570 * Fixed a bug in the -time option.
571 * Fixed a bug in configure related to LessTif.
572 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
573 * Made multi-architecture ($VPATH) builds work properly.
574 * Merged new GL stuff from xlockmore (rubik, morph3d.)
575 * Fixed intermittent crashes in `imsmap' and `munch'.
576 * Added `fadeplot' hack from xlockmore.
577 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
578 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
579 configure to detect the extra-random -Xss library.
580 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
581 * Fixed low-color behavior of `goop', `pyro', `starfish',
582 `greynetic', `flame', `halo', and `moire'.
583 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
584 * Added `munch' hack.
585 * Added basic dependencies to the Makefile.in files.
586 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
587 * Made the yow/fortune program be a configure option.
588 * Various configure tweaks.
589 Changes since 2.00: * Added `goop' and `starfish' hacks.
590 * Added colomap cycling to `halo'.
591 * Made `attraction' use the new colormap allocator.
592 * Added better $PATH diagnostics.
593 * There was a bug in frand! Color selection should be
595 Changes since 1.34: * Converted to use `configure' instead of `imake'.
596 * ANSI C is now required.
597 * Added Kerberos locking support, from Nat Lanza.
598 * Made the stderr text use overlay planes, if possible.
599 * Reworked the xlockmore compatibility stuff again.
600 * Added `gears', `superquadrics', `escher', `pipes',
601 and `sproingies' hacks (depend on OpenGL.)
602 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
603 Changes since 1.32: * Made it work with multi-headed displays.
604 * Generalized sub-process management (Unix sucks!)
605 * Added interactive mouse frobbing to Julia.
606 * Added (untested) support for HPUX shadow passwords.
607 * Made normal non-shadow passwords be checked if the
608 shadow passwords aren't accessible for some reason.
609 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
610 made it possible to specify the desired visual on a
612 * Cleaned up / restructured the driver: no more globals.
613 * Made the Motif and Athena dialogs share more code.
614 * Probably fixed some Athena colormap-installation bugs.
615 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
616 * Fixed divide-by-zero in bright random colormaps.
617 * Added an improved version of xlock's `flag' hack.
618 * Made unfading work better, and not flicker on SGIs.
619 * Added `sphere', `forest', `lisa' hacks from xlockmore.
620 * Added (untested) support for SunOS Adjunct passwords.
621 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
622 * Cleaned up xlockmore compatibility layer.
623 * Made `blitspin' able to grab an image off the screen.
624 * Ported `swirl' and `bouboule' hacks from xlockmore.
625 * Made the driver more careful about not leaving bits on
626 the screen, or allowing other windows to raise
627 themselves: it now re-blanks the screen every so often.
628 * Added `-time' option to `xscreensaver-command'.
629 * Improved SGI screen-grabbing some more: now it can grab
630 TrueColor screens into PseudoColor windows and have the
631 colors still come out semi-reasonably.
632 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
633 SGIs when windows of different visuals are present, by
634 using the XReadDisplay() extension to get a true 24-bit
635 image out of the frame buffer.
636 * Made `noseguy' be in color, if compiled with XPM.
637 * Ported `braid', `drift', `fract', `galaxy', `grav',
638 `ifs', `julia', `laser', `lightning', `penrose',
639 `sierpinski', `slip', `spiral', and `strange' hacks
641 * Merged `hopalong' hack with a more recent version.
643 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
644 * Merged in support for non-Motif locking and demo mode.
645 * Made `blitspin' and `bubbles' work in TrueColor.
646 * Fixed a stupid bug I introduced in `imsmap'.
647 * Added `poly' and `gravity' options to `qix'.
648 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
649 * Made `fade' and `unfade' work on 8-bit SGIs.
650 * Made the dialog boxes more Motify.
651 * Added `bubbles' hack.
652 Changes since 1.25: * Added `lmorph' hack.
653 * Added viscosity and mouse-control to attraction.
654 * Fixed possible bad color choices in qix and attraction.
655 * Added ramp-mode to halo.
656 * Added a new RNG, which is faster and more portable
657 than using the RNG in libc.
658 * Made locking work on SCO.
659 * Various other minor tweaks that I don't remember.
660 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
661 and present them on the screensaver window itself.
662 * Made demo mode work correctly with non-default visuals
663 and color maps, instead of always using the defaults.
664 * Added -visual argument to all included screenhacks.
665 * Support for the R6 MIT-SCREEN-SAVER server extension.
666 * Made the demo mode list scroll properly.
667 * Added `pedal' hack.
668 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
669 decayscreen, and xroger. Fixed apparent conservation-
670 of-mass problem in pyro; made the shrapnel round.
671 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
672 Changes since 1.21: * Minor tweaks for X11R6.
673 * Fixes for non-default visuals.
674 Changes since 1.20: * Fixed bug in color blitspin; added default image.
675 * Added diagnostics to noseguy. Fixed off-by-one
676 error in flame. Added some missing casts.
677 Changes since 1.18: * Added `flame' hack.
678 * Fixed a minor Motif dialog text field bug.
679 * Fixed yet another XPointer-not-defined-in-R4 bug.
680 Changes since 1.17: * Added support for shadow password files.
681 * Fixed some Motif-related locking bugs.
682 * Added diagnostics when locking is disabled.
683 * Made blitspin able to use the XPM library.
684 * Added `decayscreen' hack.
685 Changes since 1.16: * Added `halo' hack.
686 Changes since 1.15: * Portability fixes.
687 Changes since 1.14: * Broke the driver up into more source files.
688 * Moved the hacks into their own directory.
689 * Made all `time' parameters accept the 00:00:00 syntax,
690 so that even the parameters which are normally read as
691 minutes can be specified in seconds.
692 * Added colormap cycling to `imsmap'.
693 * Made hyper work with K&R compilers.
694 Changes since 1.13: * Added `orbit' option to `attraction' hack.
695 * Added `lock-timeout' option.
696 * Cleaned up options of `maze' hack.
697 Changes since 1.8: * Added demo mode, and locking.
699 * Added `norotate' option to `rocks' hack.