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