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