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:
43 Note: unlike `xlock', xscreensaver has a client-server model: the
44 `xscreensaver' process is a daemon that runs in the background; it is
45 controlled by the foreground `xscreensaver-demo' program.
47 xscreensaver has an extensive manual -- please read it!
51 The xscreensaver daemon waits until the keyboard and mouse have been idle
52 for a period, and then runs a graphics demo chosen at random. The demo is
53 terminated as soon as there is any mouse or keyboard activity (or, in
54 locking mode, when the proper password is typed.)
56 It is trivially easy to add new display modes to xscreensaver: any program
57 which can be invoked in such a way that it draws on the root window of the
58 screen can be used as a screensaver. You just change a config file --
59 there's no need to recompile or reinstall anything.
63 Along with the xscreensaver daemon itself, this package also includes
64 numerous graphics hacks for use as screensavers. There is nothing magic
65 about these: they are just programs that draw on the root window.
67 More than 100 such programs are included. For details, see the xscreensaver
68 web page, or the enclosed manual pages. There are also some helpful hints
69 on customization in the xscreensaver app-defaults file (normally installed
70 in /usr/lib/X11/app-defaults/XScreenSaver.)
72 The latest version of xscreensaver is always available on the web at
73 http://www.jwz.org/xscreensaver/.
77 Changes since 3.28: * Better rendering of the new logo.
79 * Added `-planetary' option to `gears', to draw a
80 different kind of gear system.
81 * Made motion and rotation be smoother in `gears',
82 `glplanet', `moebius', `rubik', and `sierpinski3d'.
83 * Improved coloration in `sierpinski3d'.
84 * Made the GL hacks react to window size changes.
85 * Made most of the GL hacks take a -fps option (like
86 `pulsar' did), so you can use them to benchmark your
88 * Fixed the previous fix to `sonar'.
89 * Minor fix to `nerverot'.
90 Made sonar able to ping hosts on DEC OSF1.
91 * Eliminated a bogus "didn't get enough colors" warning
93 Changes since 3.27: * New logo for xscreensaver!
94 * New hacks, `starwars' and `stonerview'.
95 * Made the motion of the bouncing ball in `stairs' be a
97 * Made newly-added screenhacks be added to .xscreensaver
98 automatically: if there are hacks in the app-defaults
99 file that are not also in ~/.xscreensaver, they will
100 be added to the end of the list.
101 * Redid the `Screensaver Options' part of the control
102 panel; xscreensaver now lets you configure your DPMS
104 * Fixed some Makefile problems with non-GL builds.
105 * Fixed detection of MesaGL for version 3.3.
106 * Better workaround to Red Hat 7.0's broken gcc.
107 * Added Sparc Solaris kernel panic to `bsod'.
108 Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
109 * Fixed a free-memory-reference bug in `sonar'.
110 * Better error handling when there are no suitable GL
112 * Added diagnostic dialog when xscreensaver-demo is
113 unable to launch xscreensaver (e.g., when running as
115 * Fixed a bug that caused screenhack argument changes
116 to be ignored when xscreensaver-demo was running as
117 root (if "root" and "nobody" have different home
119 * Made the programs default to ":0" if $DISPLAY is unset.
120 * Made the `-verbose' output include information about
121 which server extensions were supported at compile time.
122 * Worked around Red Hat 7.0's broken gcc 2.96.
123 * Updated default delays on the GL hacks to look better
124 on machines with super-fast 3D hardware.
125 * Install `screensaver-properties-capplet' to work around
126 the usual egregious GNOME lossage.
127 Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
128 xscreensaver-demo (Gtk version only.)
129 * New hacks `hyperball', `xrayswarm', and `gflux'.
130 * New versions of `nerverot', `galaxy', and `hypercube'.
131 * Small fixes to `phosphor', `shadebobs', `xflame',
133 * Added external helper program `xscreensaver-gl-helper'
134 to figure out which X visual to use for OpenGL
136 * Configure updates for XFree86 4.0, and for BSD.
137 * Made it be more tolerant of bogus /etc/group files.
138 * When installing the PAM config file, first try to just
139 copy an existing "xdm" or "login" config file, so that
140 xscreensaver does authentication in the same way as the
142 Changes since 3.24: * New hack, `nerverot'.
143 * Added BSD kernel panic to `bsod'.
144 * New version of `shadebobs'.
145 * New version of `petri'.
146 * Updated `webcollage' to handle recent Altavista URL
147 format changes; made it search the AP photo gallery.
148 * Revamped command-line options of `sonar' and made it
149 properly handle subnets.
150 * The `bubbles' hack can now trickle up or down the
152 * The `xsublim' hack can now read its text from programs.
153 * Support for GLE version 3 in `extrusion'.
154 * Fixed compilation problems in `maze'.
155 * Fixed a rare crash in `flow'.
156 * Fixes for minor installation problems.
157 Changes since 3.23: * Added `-ignorant' option to `maze' hack.
158 * Updates to `critical', `bsod', `xflame', and `flow'.
159 * Added support for Kerberos 5 (via its Kerberos 4
160 compatibility layer.)
161 * Fixed a bad leak in `xteevee'.
162 * Updated `webcollage' to handle recent Altavista URL
164 * Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
165 since they were confusing people: all changes are now
167 * Made xscreensaver-demo install itself into the Gnome
169 Changes since 3.22: * Fixed some misplaced text fields in the Motif version
170 of xscreensaver-demo; fixed a crash in the Gtk version
171 that would happen if the programs list was empty.
172 * Fixed a recently-introduced bug in `pulsar'.
173 * Made `sierpinski3d' use solid tetrahedrons instead of
175 * Added `-trace' option to `xmatrix'.
176 * Added new hacks `xteevee' and `xspirograph'.
177 Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
178 * Rewrote the Motif version of xscreensaver-demo to
179 match the new Gtk version.
180 * The Athena toolkit is no longer supported.
181 Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
182 * Fixed a few visual selection bugs. I think the proper
183 GL visual should be used with nVidia systems now.
184 * Made the Makefiles obey $install_prefix.
185 * Made the `xscreensaver.spec' file able to generate both
186 GL and non-GL packages simultaneously.
187 Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
188 * Made `xscreensaver-command -exit' be silent when no
189 screen saver was running (instead of complaining.)
190 * Made `webcollage' and `vidwhacker' use `xloadimage'
191 when available (in addition to `xli' and `xv'.)
192 * Improved memory usage in `petri' and gave it a hard
193 cap on how much memory it can allocate.
194 * Added `-watch' option to `xscreensaver-command'.
195 * Made `xscreensaver-demo' come up with the
196 most-recently-run hack selected by default.
197 * Rewrote the Gtk version of `xscreensaver-demo'.
198 It's a lot easier to use now.
199 * Extended the format of the programs list in the
200 .xscreensaver file, for the benefit of the new
201 capabilities of `xscreensaver-demo'.
202 NOTE: you might want to delete your ~/.xscreensaver
203 file and allow it to be re-created! The old one
204 should still work, but xscreensaver-demo won't be as
206 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
207 * New hack, `extrusion'.
208 * Some of the web sites that `webcollage' was using as
209 its sources changed formats; tweaked it to understand
211 * Added typeahead in the password dialog: if the screen
212 is locked, and you unlock it by typing a character,
213 that key will be automatically inserted in the
214 password dialog (unless it is Return, Enter, Space,
215 or a non-printing key like Shift.)
216 * Made `xmatrix' take a `-small' option, since some
217 folks with tiny screens prefer a smaller font.
218 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
219 * Added `ccurve', `blaster', and `bumps' hacks.
220 * Replaced `forest' hack with a rewritten version.
221 * Worked around a Xinerama server bug.
222 * Fixed a bug I introduced in 3.10 that caused some
223 hacks to print out superfluous warnings about not
224 having gotten enough colors.
225 * Made `sproingies' obey the `-delay' option.
226 * Fixed a portability bug in `shadebobs'.
227 * Made `webcollage' and `vidwhacker' use `xli' in
228 preference to `xv', if it is available.
229 * Added a new source of images to `webcollage'.
230 * If running under KDE, xscreensaver will add itself to
231 KDE's list of screensavers (via xscreensaver.kss.)
232 * Improved detection of GL libraries.
233 * Made the password dialog include the date and time.
234 Changes since 3.16: * New version of `webcollage' -- deals better with
235 corrupted images, and can use an http proxy.
236 * New hack, `xsublim' (run it in the background,
237 rather than adding it to the programs list.)
238 * The xscreensaver daemon was leaking a file descriptor
239 each time you edited your .xscreensaver file. Fixed.
240 Changes since 3.15: * New version of `shadebobs'.
241 * Improved image selection in `webcollage', and sped it
243 * Made configure find the right version of perl.
244 * Rewrote the CGI part of `webcollage'.
245 * `make clean' was deleting some things it shouldn't.
246 * Fixed a typo in the default programs list.
247 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
248 * Added a `-stdout' arg to `vidwhacker' so that it can
249 be used in a pipeline.
250 * Made `petri' use less memory.
251 Changes since 3.13: * Various improvements to the Gtk port.
252 * Turned off PAM by default on Solaris, since PAM seems
253 generally to be misconfigured out-of-the-box.
254 * Made the `--without-gtk' configure option work.
255 * Made configure check the Gtk version number, since it
257 * Fixed a bug in the code that attempted to prevent
258 changes of screen resolution while the screen is
260 * Fixed a race condition in `xscreensaver-demo' that
261 could cause an X error at startup.
262 * Added `-transparent' option to `deluxe'.
263 * Added `petri' hack.
264 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
265 * Made it possible to build Motif, Gtk, and Athena
266 versions of `xscreensaver-demo' in the same directory
267 without reconfiguring.
268 * Made `xscreensaver-demo' chase symlinks before writing
269 the .xscreensaver file, so that if .xscreensaver is
270 itself a symlink, the underlying file will be replaced
272 * Some Makefile and configure tweaks for Solaris and
274 * Made it possible to set the fire color in `xflame'.
275 * Made transparency work in TrueColor (for `goop' and
277 * Fixed a multi-head bug introduced by the virtual
279 Changes since 3.11: * Made it so that you can't scroll the screen while the
280 lock dialog is up (with XFree86 virtual viewports.)
281 * Fixed a bug in `flag' that caused bob's chin to get cut
282 off after a few iterations.
283 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
284 less like a computer screen and more like the
285 typewritten paper it's supposed to be.
286 * New version of `pulsar'.
287 * Fixed Solaris compilation problem in `phosphor'.
288 * Made xscreensaver notice XFree86's virtual root window
289 hack, so that if the X server's root window is larger
290 than the monitor's displayable resolution, the screen
291 saver will limit itself to the area that actually
292 appears on the screen.
293 * Made the xscreensaver daemon do a better job of
294 picking the visual class that should be used for GL
295 programs. Less user intervention should be needed
296 now: you can use the logical visual name `GL' instead
297 of having to figure out by hand which one to use.
298 * Oops, the visual was defaulting to "best" instead of
299 "default", because the .xscreensaver file was not being
300 loaded quite early enough.
301 * Made configure figure out how to build icmp ping
302 support into the `sonar' hack automatically.
303 * Made warnings about not being able to read shadow
304 passwords not be printed if compiled with PAM support.
305 * Improved PAM startup diagnostics.
306 * Worked around the Solaris PAM bug that was causing
307 crashes there, so now PAM is turned on by default.
308 * Made configure detect the number of arguments that
309 pam_strerror() takes, since on Linux, this apparently
310 changed between 2.0 and 2.2, sigh.
311 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
312 as well as "keyboard".
313 * Made xscreensaver notice when there has been a sudden
314 large jump in wall-clock time, and if so, lock right
315 away, instead of waiting for "lockTimeout" to expire
316 first. (Laptops need this for safer recovery from
318 * Added `-throttle' option to `xscreensaver-command'.
319 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
320 * Fixed a bug in the color allocator that sometimes
321 caused `starfish' to fall back to monochrome.
322 * Reduced the amount of code that runs before root
323 privileges are disavowed: "normal" and "shadow"
324 passwords now do some initialization as root, but the
325 PAM and Kerberos authorization schemes will be
326 initialized while running as "nobody". Supposedly
327 this closes a potential security hole when using
329 * Added some more sanity checking to configure.
330 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
331 `spotlight', and `critical' hacks.
332 * Added some new modes to `decayscreen'.
333 * Made `deluxe' work in monochrome.
334 * Generalized usage of the Double-Buffer server extension
335 in several hacks (`compass', `deluxe', `interference',
336 `kumppa', and `moire2'.)
337 * Fixed another visual-depth problem in `rd-bomb'.
338 * The screen saver will now defer blanking if neither
339 the keyboard nor the mouse could be grabbed. Instead,
340 it will just try again in a few minutes. This fixes
341 a bad interaction between xscreensaver and programs
342 like VMware that hold the mouse and keyboard grabbed
344 * Added a new erase mode (expanding spiral.)
345 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
346 * Added `penetrate' and `deluxe' hacks.
347 * When linking against Motif 2.x, also link against XPM.
348 * Added support for using /proc/interrupts for idle
349 detection on Linux. Now xscreensaver shouldn't kick
350 in when the user is active on a non-X virtual console.
351 * Upgraded to autoconf 2.13.
352 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
353 in properly; check for _Xsetlocale in -lXintl.)
354 * Portability fixes for sonar.c.
355 * Fixed a compilation problem when you have GL but don't
357 * Made configure notice when MesaGL requires -lpthread.
358 * Made `flame' ignore SIGFPE (not sure if this is the
359 right fix; it seems only to be needed on FreeBSD.)
360 * Kludged `rd-bomb' work on visuals that are of depth 24
361 but that *do not* support pixmaps of depth 32.
362 * Fixed `halo' to work properly in TrueColor.
363 * Changed `xscreensaver.spec' to install the hacks in
364 /usr/X11R6/lib/xscreensaver/ by default, since that's
365 where recent Red Hat distributions put them.
367 * Updated versions of `crystal', `hopalong', and `flow'
369 * Imported `demon' and `loop' modes from xlockmore.
370 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
371 it was always installing a colormap if the
372 `installColormap' preference was set, meaning that
373 `xearth', `xv' and friends were using the wrong
374 colors on 8-bit systems.
375 * Turned off HAVE_PING in `sonar', since it compiles
376 on some Linux systems, but not others of similar
378 Changes since 3.04: * Fixed an off-by-1 in `distort'.
379 * Added `sonar' hack.
380 * New version of `glplanet' (with stars.)
381 * Made all hacks exit when you type `q' or `ESC' at them,
382 and made them obey the WM_DELETE_WINDOW ClientMessage.
383 * Fixed a nonfatal buffer overrun in lament (note:
384 lament still doesn't work with MesaGL 3.0: it dies in
385 lambda_textured_triangle1(), which is Mesa's bug, not
387 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
388 for other folks to generate RPMs.
389 * Made the password code work on HPUX in the situation
390 where: ``enhanced security'' is available; but not
391 used; but the user typed a password more than 8
392 characters long anyway. FTSOHPUX.
393 Changes since 3.02: * Made locking work when passwd aging is enabled.
394 * Added support for PAM (Pluggable Authentication
395 Modules.) It is still turned off by default, though,
396 since it doesn't seem to work on Solaris 2.6, and has
397 been behaving erratically on Red Hat 5.1.
398 * Made each possible authentication method be tried in
399 turn until one succeeds; this means that Kerberos is
400 being used, we will first check Kerberos, and if that
401 fails, will then consult the local password file.
403 * Save and restore the bits under the passwd dialog,
404 to avoid leaving a black rectangle behind when
405 unlocking is cancelled.
406 Changes since 3.01: * Not everyone has sys/select.h, sigh...
407 Changes since 3.00: * Some fixes to `reflect'.
409 * Made it log unsuccessful attempts to unlock the screen
411 * Fixed a bug where `xscreensaver-demo' could be seeing
412 a different programs list than `xscreensaver' did.
413 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
414 or Athena: demo-mode and the preferences panel are no
415 longer built in to the daemon, but are now handled by
416 an external program, `xscreensaver-demo'.
417 (I decided that this, along with the recent addition
418 of the `.xscreensaver' config file, justified bumping
419 the version number to 3.00, since this is a fairly
420 major architectural change.)
421 * Lines in the `*programs' resource may now begin with
422 the character "-", meaning "don't run this hack."
423 In this way, it's possible to disable a hack without
424 throwing away the information about it (making it
425 easier to change your mind later.) Eventually the
426 preferences/demo mode GUI should represent this as a
427 checkbox or something.
428 * Fixed a short race condition where it was possible for
429 xscreensaver to die with a BadWindow error if it was
430 blanking the screen just as another window was being
432 * Made it possible to disable specific modes in `bsod'.
433 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
434 many valves. Made the viewpoint in `pipes' be selected
435 randomly instead of always being -10 degrees.
436 * Fixed a bug in the XSHM code, in the case where the
437 server supports the XSHM extension but is not the same
438 machine as the client.
439 * Made `rd-bomb' default to taking up the whole screen.
440 * Made it not try to do fading/unfading if no PseudoColor
442 * Initial attempt at supporting VT-locking (doesn't work
444 * Eliminated the `captureStdout' resource; now
445 `captureStderr' controls both streams.
446 * Added `-capture-stderr' and `-no-capture-stderr'
447 command-line arguments.
448 * Added `glplanet' hack.
449 * When a hack is selected with `xscreensaver-command
450 -select', that hack will be used until further notice
451 (until the saver turns off, or another activation
453 Changes since 2.32: * Made `xscreensaver-command' print error messages:
454 the xscreensaver daemon now responds to ClientMessage
455 events by writing a response message on a window
456 property, instead of just writing to its stderr.
457 * Made the ~/.xscreensaver file be automatically reloaded
458 when the file date changes.
459 * The password dialog and splash screen no longer depend
460 on Motif or Athena. This should clear up a number of
461 focus problems, and is the first step on the path
462 toward moving all of the Motif/Athena/whatever code
463 out of the xscreensaver daemon, and into external
465 * Don't complain about LessTif 0.86 any more, since the
466 new password dialog makes that problem go away.
467 * Configure tweaks for Irix 6.5, SunOS 5.something.
468 * New `-reflect' option to `distort'.
469 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
470 so that the Preferences panel can save its settings.
471 * New version of `rubik'.
472 * Added `-select N' argument to `xscreensaver-command'.
473 * Oops, left out some of the `bubbles3d' files...
474 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
475 * Made configure warn against MesaGL 2.6.
476 * Fixed X error at startup when using non-default visual.
477 * New version of `crystal', `ant', and `atlantis' from
479 * New hack, `bubble3d'.
480 * Added some new modes to `bsod'.
481 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
482 to be after Motif instead of before (Lesstif on Irix
484 Changes since 2.28: * Work around a bash bug in configure.
485 * Tweaked HPUX paths again. FTSOHPUX.
486 * Made configure recommend against LessTif 0.86, due
487 to a bug in that version that causes a security hole
488 in the screen locking code. LessTif 0.87 will fix it.
489 * Made all of the `--with' options to `configure' accept
490 a directory option as well (so that --with-motif=/FOO
491 will add -I/FOO/include -L/FOO/lib). I believe this is
492 the Configure Party Line of how do to such things.
493 * Fixed a bug where the mouse was left un-grabbed
494 after the first time the graphics hack was changed
495 (simplified all of the mouse-grabbing logic.)
496 * Maybe possibly perhaps made `vidwhacker' really not
497 leave stray xv windows around. This time for sure.
498 * Added a new erase mode (random dots fizzling out.)
499 * Added `-prefs' argument to `xscreensaver-command',
500 that brings up the Preferences dialog directly (it
501 seems that nobody ever noticed the `Preferences' button
502 on the Demo Mode dialog, maybe this will help.)
503 * Added a splash screen. Turn it off with *splash:false.
504 Changes since 2.27: * Better macsbug text in `bsod'.
505 * New version of `distort' with many new modes.
506 * Plugged a leak in `coral'.
507 * Tweaked configure for HPUX.
508 * Removed some compiler warnings.
509 * More consistent usage of stderr versus stdout.
510 * More diagnostics should an X error occur.
511 * Fixed a possible crash in SGI-specific unfading code.
512 Changes since 2.26: * Improved version of `distort'.
513 * Made `lament' compile against OpenGL 1.0 (though it
514 still requires 1.1 to work properly.)
515 * Updated my email address and home page.
516 Changes since 2.24: * Improved motion in `rd-bomb'.
517 * Added XSHM (shared memory extension) support to the
518 `distort', `interference', `moire', `rd-bomb', and
519 `swirl' hacks, which speeds them up a bit.
520 * Added `lament' hack.
521 Changes since 2.23: * Tweaked the order of the -L options again.
522 * Cleaned up configure's `--help' message.
523 * Added `kumppa' hack.
524 * Smarter maze-solving algorithm in `maze'.
525 * Took `xlyap' out of the default list of hacks, since
526 it's just incredibly buggy (and slow.) Maybe someday
527 someone will fix it...
528 * Added `distort' hack, but didn't add it to the default
529 list (yet) because it's still too slow.
530 * Made the Athena demo dialog look more like the Motif
531 version; it has a text-entry field now, too.
532 * Made the Athena password dialog echo asterisks, like
533 Motif does, instead of using a flyspeck font.
534 * Some random configure tweaks.
535 * Added a `timestamp' resource that makes the `-verbose'
536 messages include the time at which they were printed.
537 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
538 let the user's "*background" resource show through.
539 Fixed it in a different way.
540 Changes since 2.21: * Added support for the DPMS server extension (Display
541 Power Management System.)
542 * Made configure advertize the `--enable-subdir' option a
543 little more, since that seemed to cause some people
544 stress. Also, made that directory be built into the
545 xscreensaver executable, as a hardcoded prefix to
546 $PATH. (Might help, shouldn't hurt.)
547 * Made configure prefer the two-arg gettimeofday to the
548 one-arg version, since AIX doesn't have any prototypes.
549 * Made it work with Xaw3d (the 3D Athena library.)
550 * Made `make install' create directories as necessary.
551 * New version of lmorph from Sverre.
552 * Added `crystal' and `discreet' hacks from xlockmore.
553 * Added a new mode to `bsod'.
554 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
555 (It now describes the two states as "screen blanked
556 since..." and "screen non-blanked since..." instead of
557 "active since..." and "inactive since..." which a lot
558 of people interpreted as meaning the opposite of what
560 * Improved some error messages, in the hopes of making
561 the distinction between the xscreensaver and
562 xscreensaver-command programs more obvious.
563 * Rewrote (and reorganized) parts of the xscreensaver and
564 xscreensaver-command manual pages.
565 * Renamed xscreensaver's `-lock' command-line option to
566 be `-lock-mode', to avoid confusion with the `-lock'
567 option to xscreensaver-command, which does a totally
569 * Removed xscreensaver's `-demo' command-line option for
570 a similar reason; use `xscreensaver-command -demo'
572 * Disabled SGI's ``scheme'' nonsense in a better way than
573 fully-qualifying the background colors in every single
575 * Fixed some other minor cosmetic problems when *sgiMode
577 * Fixed an X error in `bsod -root' (how ironic...)
578 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
579 grabbed properly (meaning the window manager menu could
580 pop up over the demo-mode display.)
581 * Fixed a bug that made the stderr output sometimes get
583 * Fixed a bug that made the demo-mode scrollbar move too
585 * Protected against a possible buffer overflow.
586 * Made `vidwhacker' not leave stray xv windows around.
587 * New version of `ant' so that Bagley doesn't calve.
588 * Make configure on AIX get XShm from the right library.
589 Changes since 2.18: * One file was missing from the tar file. Fixed.
590 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
591 * Added `epicycle' hack.
592 * Added `interference' hack.
593 * Added `truchet' hack.
595 * Added some new modes to `vidwhacker'.
596 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
597 can draw on arbitrary externally-provided windows.
598 * Synched with xlockmore 4.11a01.
600 * Added `atlantis' GL hack.
601 * Renamed `puzzle' hack to `jigsaw', since xlock already
602 had a different mode called `puzzle'.
603 * Made it self-configure properly when Motif 2.1.0 is
604 being used (requires -lXp now, sigh...)
605 Changes since 2.15: * Made `flag' able to do XPM images.
606 * New look for the xscreensaver logo (`xroger').
607 * Fixed compilation error on Suns with adjunct passwords.
608 * Got multi-architecture builds working again.
609 * Some configure tweaks for building on HPUX and Solaris.
610 * Fixed bug in decayscreen.
611 * Fixed typo in passwd.c.
612 * Made `cynosure' not die when colormap is full.
613 Changes since 2.14: * Added `cynosure' hack.
614 * Added `moire2' hack.
615 * Tweaked `erase.c' some more.
616 * Made unfading a bit smoother.
617 * Added `vidwhacker' hack (not installed by default.)
618 * Added `stairs' hack.
619 * Split `escher' into `cage' and `moebius', as per
621 * Changed subprocess handling to use sigaction() instead
622 of signal() if it's available (this is necessary for
623 SCO but should work fine on other systems too.)
624 * Various other tweaks.
625 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
626 * Put in some kludges to work around a LessTif bug.
627 * XScreenSaver is known to work with LessTif 0.82 now.
628 * Made fading work on high-end SGI video hardware.
629 * Fixed another SGI-specific bug in screen grabbing;
630 will the madness never cease?
631 * Fixed another crash in `xlyap'.
632 Changes since 2.12: * Made `decayscreen' do directions other than down.
634 * Fixed a crash in `xlyap'.
635 * Added CDE info to the man page, removed `cde.txt'.
636 * Configure tweaks for Zippy.
637 * Turned off the signal handling in `bubbles' because
638 it was sometimes failing to die.
639 * Added `hacks/xscreensaver-sgigl.c' to make it possible
640 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
641 with xscreensaver. Finally!
642 * Fixed a buffer overrun in the locking code that some
643 wily, malicious cracker must have slipped in.
644 * Disabled Motif drag-and-drool in the dialog box
645 buttons, since it's broken in some old versions of
647 Changes since 2.11: * Added `README.debugging'.
648 * Added `puzzle' hack.
649 * Added `xlyap' hack.
650 * Added `default-n' as a visual name, so that one can
651 have -install on by default, but turn it off for
652 certain poorly-behaved hacks (like xv.)
653 * Added support for grabbing frames of external video
654 (on SGI) to the screen-grabbing hacks (decayscreen,
655 slidescreen, slip, blitspin, and puzzle.)
656 * Improved look of tiles in `slidescreen'; fixed its
657 color allocation problem.
658 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
659 * Added `lissie', `mountain', `triangle', `worm',
660 `rotor', and `ant' from xlockmore.
661 * Updated `sierpinski', `galaxy', and `lisa'.
662 * Thickened the lines in `braid' and `lmorph'.
663 * Updated VMS makefiles.
664 * Renamed `fract' to `vines'.
665 * Added `xjack' hack.
666 * Made a few more hacks use erase.c, and added a few
668 * Fixed compilation problem with Sun's version of OpenGL.
669 * Added ability to use sigaction() instead of signal()
670 to work around a SCO kernel bug.
671 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
672 * Configure tweaks for *BSD.
673 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
674 * New version of `maze' with some new algorithms.
675 * New colorized version of `rocks'.
676 * Fixed a bug in qix on 64-bit machines.
677 * Fixed a bug in the -time option.
678 * Fixed a bug in configure related to LessTif.
679 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
680 * Made multi-architecture ($VPATH) builds work properly.
681 * Merged new GL stuff from xlockmore (rubik, morph3d.)
682 * Fixed intermittent crashes in `imsmap' and `munch'.
683 * Added `fadeplot' hack from xlockmore.
684 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
685 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
686 configure to detect the extra-random -Xss library.
687 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
688 * Fixed low-color behavior of `goop', `pyro', `starfish',
689 `greynetic', `flame', `halo', and `moire'.
690 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
691 * Added `munch' hack.
692 * Added basic dependencies to the Makefile.in files.
693 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
694 * Made the yow/fortune program be a configure option.
695 * Various configure tweaks.
696 Changes since 2.00: * Added `goop' and `starfish' hacks.
697 * Added colomap cycling to `halo'.
698 * Made `attraction' use the new colormap allocator.
699 * Added better $PATH diagnostics.
700 * There was a bug in frand! Color selection should be
702 Changes since 1.34: * Converted to use `configure' instead of `imake'.
703 * ANSI C is now required.
704 * Added Kerberos locking support, from Nat Lanza.
705 * Made the stderr text use overlay planes, if possible.
706 * Reworked the xlockmore compatibility stuff again.
707 * Added `gears', `superquadrics', `escher', `pipes',
708 and `sproingies' hacks (depend on OpenGL.)
709 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
710 Changes since 1.32: * Made it work with multi-headed displays.
711 * Generalized sub-process management (Unix sucks!)
712 * Added interactive mouse frobbing to Julia.
713 * Added (untested) support for HPUX shadow passwords.
714 * Made normal non-shadow passwords be checked if the
715 shadow passwords aren't accessible for some reason.
716 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
717 made it possible to specify the desired visual on a
719 * Cleaned up / restructured the driver: no more globals.
720 * Made the Motif and Athena dialogs share more code.
721 * Probably fixed some Athena colormap-installation bugs.
722 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
723 * Fixed divide-by-zero in bright random colormaps.
724 * Added an improved version of xlock's `flag' hack.
725 * Made unfading work better, and not flicker on SGIs.
726 * Added `sphere', `forest', `lisa' hacks from xlockmore.
727 * Added (untested) support for SunOS Adjunct passwords.
728 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
729 * Cleaned up xlockmore compatibility layer.
730 * Made `blitspin' able to grab an image off the screen.
731 * Ported `swirl' and `bouboule' hacks from xlockmore.
732 * Made the driver more careful about not leaving bits on
733 the screen, or allowing other windows to raise
734 themselves: it now re-blanks the screen every so often.
735 * Added `-time' option to `xscreensaver-command'.
736 * Improved SGI screen-grabbing some more: now it can grab
737 TrueColor screens into PseudoColor windows and have the
738 colors still come out semi-reasonably.
739 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
740 SGIs when windows of different visuals are present, by
741 using the XReadDisplay() extension to get a true 24-bit
742 image out of the frame buffer.
743 * Made `noseguy' be in color, if compiled with XPM.
744 * Ported `braid', `drift', `fract', `galaxy', `grav',
745 `ifs', `julia', `laser', `lightning', `penrose',
746 `sierpinski', `slip', `spiral', and `strange' hacks
748 * Merged `hopalong' hack with a more recent version.
750 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
751 * Merged in support for non-Motif locking and demo mode.
752 * Made `blitspin' and `bubbles' work in TrueColor.
753 * Fixed a stupid bug I introduced in `imsmap'.
754 * Added `poly' and `gravity' options to `qix'.
755 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
756 * Made `fade' and `unfade' work on 8-bit SGIs.
757 * Made the dialog boxes more Motify.
758 * Added `bubbles' hack.
759 Changes since 1.25: * Added `lmorph' hack.
760 * Added viscosity and mouse-control to attraction.
761 * Fixed possible bad color choices in qix and attraction.
762 * Added ramp-mode to halo.
763 * Added a new RNG, which is faster and more portable
764 than using the RNG in libc.
765 * Made locking work on SCO.
766 * Various other minor tweaks that I don't remember.
767 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
768 and present them on the screensaver window itself.
769 * Made demo mode work correctly with non-default visuals
770 and color maps, instead of always using the defaults.
771 * Added -visual argument to all included screenhacks.
772 * Support for the R6 MIT-SCREEN-SAVER server extension.
773 * Made the demo mode list scroll properly.
774 * Added `pedal' hack.
775 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
776 decayscreen, and xroger. Fixed apparent conservation-
777 of-mass problem in pyro; made the shrapnel round.
778 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
779 Changes since 1.21: * Minor tweaks for X11R6.
780 * Fixes for non-default visuals.
781 Changes since 1.20: * Fixed bug in color blitspin; added default image.
782 * Added diagnostics to noseguy. Fixed off-by-one
783 error in flame. Added some missing casts.
784 Changes since 1.18: * Added `flame' hack.
785 * Fixed a minor Motif dialog text field bug.
786 * Fixed yet another XPointer-not-defined-in-R4 bug.
787 Changes since 1.17: * Added support for shadow password files.
788 * Fixed some Motif-related locking bugs.
789 * Added diagnostics when locking is disabled.
790 * Made blitspin able to use the XPM library.
791 * Added `decayscreen' hack.
792 Changes since 1.16: * Added `halo' hack.
793 Changes since 1.15: * Portability fixes.
794 Changes since 1.14: * Broke the driver up into more source files.
795 * Moved the hacks into their own directory.
796 * Made all `time' parameters accept the 00:00:00 syntax,
797 so that even the parameters which are normally read as
798 minutes can be specified in seconds.
799 * Added colormap cycling to `imsmap'.
800 * Made hyper work with K&R compilers.
801 Changes since 1.13: * Added `orbit' option to `attraction' hack.
802 * Added `lock-timeout' option.
803 * Cleaned up options of `maze' hack.
804 Changes since 1.8: * Added demo mode, and locking.
806 * Added `norotate' option to `rocks' hack.
projects / xscreensaver / blob