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