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.)
22 If you have libraries in non-standard places, you can specify their
23 locations with options like this:
25 ./configure --with-motif=/opt/Motif --with-xpm=/usr/local
27 On MacOS X, it is strongly recommended that you install Fink first
28 (http://fink.sourceforge.net/). With Fink installed, you probably want
29 to pass --prefix=/sw to configure.
31 To build on VMS, see README.VMS.
33 If you think you've found a bug, please let me know! No bug report is too
34 small. But first, please read the enclosed `README.debugging' file to find
35 out what kind of information would be most helpful to include in your bug
40 You can try out xscreensaver like so:
45 The XScreenSaver suite of applications uses a client-server model:
46 The `xscreensaver' program is a daemon that runs in the background;
47 it is controlled by the foreground `xscreensaver-demo' program.
49 xscreensaver has an extensive manual -- please read it!
53 The xscreensaver daemon waits until the keyboard and mouse have been idle
54 for a period, and then runs a graphics demo chosen at random. The demo is
55 terminated as soon as there is any mouse or keyboard activity (or, in
56 locking mode, when the proper password is typed.)
58 It is trivially easy to add new display modes to xscreensaver: any program
59 which can be invoked in such a way that it draws on the root window of the
60 screen can be used as a screensaver. You just change a config file --
61 there's no need to recompile or reinstall anything.
65 Along with the xscreensaver daemon itself, this package also includes
66 numerous graphics hacks for use as screensavers. There is nothing
67 magic about these: they are just programs that draw on the root window.
68 More than 200 such programs are included. For details, see the
69 xscreensaver web page, or the enclosed manual pages.
71 The latest version of xscreensaver is always available on the web at
72 http://www.jwz.org/xscreensaver/.
74 Looking for tips on writing your own screensavers? There is an entry in
75 the XScreenSaver FAQ about that: http://www.jwz.org/xscreensaver/faq.html
79 Changes since 4.22: * New hacks, `glhanoi', `cube21', `timetunnel',
80 `juggler3d', and `celtic'.
81 * New versions of `tangram', `webcollage', `hypertorus',
82 `polytopes', and `ripples'.
83 * `sonar' is now quiet about unresolvable hosts.
84 * Minor corrections to BASIC code in `apple2'.
85 * xscreensaver-demo now provides an RPM clue when none
86 of the hacks seem to be installed.
87 * Don't install `ant' by default, since there is some
88 Java tool of that name, which was causing confusion.
90 * Made screen grabbing work again on MacOS 10.4.2.
91 * No longer prints bogus warnings about ClientMessages
92 intended for the window manager.
93 * Ignore unprintable characters in passwd entry field.
94 * Fixed yet another cross-host-display image-loading
96 * `xscreensaver-command -watch' and `-time' now work
98 Changes since 4.21: * Fixed a bug in the new mouse-motion code that caused
99 the screen to never blank on multi-head non-Xinerama
101 * New hacks, `interaggregate', `antmaze', `tangram',
103 * Minor tweaks to `fiberlamp', `ifs', `slidescreen',
104 `zoom', `sonar', `fireworkx', `whirlwindwarp',
105 `bubble3d', and `rd-bomb'.
106 * Added motion blur to `blinkbox'.
107 * `bsod' now includes Longhorn's "RSOD", and OS/2.
108 * Fixed `-wireframe' usage in most hacks and man pages.
109 Changes since 4.20: * New hack: `fliptext'.
110 * Changed default configure installation directories:
111 /usr/bin/ for xscreensaver, etc.;
112 /usr/libexec/xscreensaver/ for hacks;
113 /usr/share/xscreensaver/config/ for xml files.
114 * All the text-manipulating screen savers can have their
115 text source configured via `xscreensaver-demo' now.
116 * xscreensaver.spec now builds three RPMs:
117 base (no hacks); extras (2d hacks); and gl-extras.
118 * Added `-program' and `-front' option to `gltext'.
119 * Added `-shells' to `molecule'.
120 * Fixed text-alpha glitch in `carousel'.
121 * New `pacman': the ghosts can be killed now.
122 * Fixed a bug in screen-grabbing GL hacks where images
123 would be tiled instead of scaled on machines that
124 can't do large textures.
125 * `webcollage' can hit Flickr now.
126 * New (rewritten) implementation of `ifs'.
127 * The unlock dialog can be made to have a "New Login"
128 button that will run `gdmflexiserver'. Experimental!
129 * Fixed non-ASCII display bug in `starwars'.
130 * Configure finds a default for imageDirectory.
131 * "xscreensaver-command -lock" now works even if
132 in "screensaver disabled" mode.
133 * If a bad password is typed while CapsLock is on, the
134 unlock dialog says "CapsLock?" instead of "Sorry".
135 * Mouse motion only counts as activity if the mouse moved
136 more than 10 pixels (so the screen won't unblank every
137 time you bump your desk.)
138 * New mode option "random-same": if you have multiple
139 monitors, this will run the *same* randomly chosen
140 hack on each screen, instead of different ones on each.
141 Changes since 4.19: * New hacks, `fiberlamp', `boing', `boxfit', and
143 * Rewrote `glslideshow' again: should be faster now.
144 * Sped up loading of images in GL programs.
145 * `starwars' uses texture-mapped fonts now.
146 * New `bsod' modes: tru64, hppa, and nvidia.
147 * Updates to `webcollage', `juggle', `pinion',
148 `fireworkx', `sonar', `extrusion', `substrate', and
150 Changes since 4.18: * New hacks, `substrate', `intermomentary', `fireworkx',
152 * New version of `flow'.
153 * Made /proc/interrupts work again on Linux 2.6.
154 * Made `analogtv' not hog the CPU.
155 * Made analogtv-based hacks work properly on PPC/ARM.
156 * Fixed a bad memory leak in `piecewise'.
157 * Minor updates to `sonar', `molecule', `glmatrix',
158 `galaxy', and `webcollage'.
159 * Removed support for GTK 1.x (everyone uses 2.x now.)
160 Changes since 4.17: * Oops, pay no attention to the man behind the curtain.
161 Changes since 4.16: * New hacks, `anemotaxis' and `memscroller'.
162 * Fixed a bad bug that caused `vidwhacker' to never die.
163 * Fixed normals and lighting in `polyhedra'.
164 * Don't reuse the window when changing hacks (to work
165 around bugs in some GL implementations.)
166 * Made `xscreensaver-getimage-file' skip thumbnail-sized
168 * Fixed endian problem in `barcode' on non-x86.
169 * Updates to `webcollage', `apple2', `fuzzyflakes',
170 `atunnel', and `pacman'.
171 * Timing tweaks to `bubble3d', `bouncingcow', `engine',
172 `gltext', `lavalite', `molecule', `spotlight',
173 `sballs', `boxed', `blinkbox', and `circuit'.
174 * Configure updates for Fedora core 2 / xorg 6.7.0.
175 * Compile without warnings under gcc 3.3.3.
176 * I give up: don't blank or lock the screen if we can't
177 get a keyboard grab. In that case, both choices are
179 Changes since 4.15: * New hacks, `polyhedra', `fuzzyflakes', `antinspect',
181 * Minor updates to `webcollage', `bsod', `endgame',
182 `antspotlight', `xmatrix', and `glmatrix'.
183 * Added support for the RANDR (Resize and Rotate)
184 extension to detect when the size of the desktop has
185 been changed while xscreensaver is already running.
186 * Possibly-futile attempt to work around "rdesktop"
188 * Made `xscreensaver-getimage -file' still work even if
189 imageDirectory is unset.
190 * Convert Latin1 to ASCII in `starwars' and `phosphor'
191 (since the GLUT font only has ASCII glyphs.)
192 * Fixed randomization in `noof'.
193 * Added "GetViewPortIsFullOfLies" preference to work
194 around longstanding XFree86 bug #421.
195 * Made `sonar' subnet pinging work properly on bigendian
196 machines (e.g., PPC.)
197 Changes since 4.14: * New hacks, `wormhole', `mismunch', `noof', and
199 * `phosphor' and `apple2' include vt100 emulators now:
200 this means you can do "phosphor -program top", or
201 can use either program as an xterm replacement:
202 "apple2 -text -fast -program 'xemacs -nw'".
203 * `analogtv' (and related) fill the screen better.
204 * The '-gradient' option works in `atlantis' now.
205 * Minor updates to `blinkbox', `queens', `endgame',
206 `glmatrix', `mirrorblob', `blocktube', and `molecule'.
207 * Integrated SuSE's "external passwd helper" support.
208 * Marginally better /tmp handling in various programs.
209 * Updated config defaults for xplanet 1.0.3.
211 Changes since 4.13: * New hacks, `fontglide', `apple2', `xanalogtv', `pong',
212 `gleidescope', `mirrorblob', and `blinkbox'.
213 * New version of `glsnake' (with many more models.)
214 * Another Windows crash in `bsod'; also HVX/GCOS6/TPS6.
215 * New version of `endgame'.
216 * Screen grabbing works on MacOS X.
217 * Various minor fixes.
218 Changes since 4.12: * On Xinerama systems, xscreensaver now runs one hack on
219 each monitor (just like in "real" multi-head mode)
220 instead of running one hack stretching across all the
221 screens. Note that for this to work with any 3rd party
222 screensavers, they must update their "vroot.h" file.
223 * `webcollage' and `vidwhacker' display images using
224 `xscreensaver-getimage' now.
225 * Added `ljlatest' script for use with `starwars' and
227 Changes since 4.11: * New GL hacks, `flipflop', `antspotlight', and
229 * Added VMS to `bsod'.
230 * Compile without warnings in "gcc -pedantic".
231 * Updates to `webcollage' and `queens'.
232 * Fixed a bug that could cause PAM to hang.
233 Changes since 4.10: * New hacks, `hypertorus', `cubestorm', `glknots',
234 `blocktube', and `glmatrix'.
235 * Updates to `cloudlife', `engine', `xmatrix', and
237 * Rewrote `glslideshow': it should work on somewhat
238 wimpier video cards now.
239 * Various portability tweaks.
240 Changes since 4.09: * New hacks, `cloudlife' and `klein'.
241 * Added Apple ][+, HPUX, and OS/390 sessions to BSOD.
242 * Added some Matrix Reloaded text to `xmatrix'.
243 * Updates to `webcollage', `eruption', `jigglypuff',
244 `metaballs', and `endgame'.
245 * Completely ignore the `memoryLimit' setting now,
246 since it was still causing people GL grief.
247 * Various minor fixes.
248 Changes since 4.08: * New hacks, `flyingtoasters', `bouncingcow',
249 `jigglypuff', and `glslideshow'.
250 * More models in `engine'.
251 * Rewrote `xscreensaver-getimage' to remove reliance on
252 external image loaders (xv, chbg, xloadimage, etc.)
253 and to reduce flicker when loading files.
254 * Made `gflux' and `flipscreen3d' be mouse-spinnable.
255 Changes since 4.07: * New hacks, `atunnels' and `piecewise'.
256 * Physics improvement in `fluidballs'.
257 * Various fixes for XDarwin systems (X11 on MacOS X.)
258 * Added -clock option to `barcode'.
259 * Minor fixes to `endgame', `flurry', `flipscreen3d',
261 Changes since 4.06: * New hacks, `flurry', `metaballs', `eruption',
262 `popsquares', and `barcode'.
263 * Minor updates to `maze' for high density mazes.
264 * Added double buffering to `fluidballs' and `whirlygig'.
265 * Bug fixes for running xscreensaver to a remote XFree86
266 display (which nobody would ever do...)
267 * Updated `webcollage' (faster Alta Vista searching.)
268 * Updated `glplanet' so the sun sets in the west.
269 * Updated `sproingies' with smooth, unsegmented surfaces.
270 * Fixed Perl version-sensitivity in
271 `xscreensaver-getimage-file'.
272 * Fixed GTK2 scrolling bug in `xscreensaver-demo'.
273 Changes since 4.05: * New hack, `glblur' (disabled by default, since it
274 requires fast OpenGL texture support.)
275 * New hack, `halftone'.
276 * Updates to `endgame', `queens', `bumps', `glplanet',
277 `engine', and `circuit'.
278 * New version of `menger' that uses far fewer polygons.
279 * Fixed minor bug in `critical' that could cause some
280 bogus X servers to crash.
281 * Better labels in `molecule': the labels now appear to
282 be attached to the atoms, instead of floating in front
284 * Fixed bug that could rarely cause GL hacks to fail to
285 double-buffer (causing intermittent flickering.)
286 * Fixed a relative-URL-parsing bug in `webcollage'.
287 * Fixed a bug that (sometimes) caused the window manager
288 close box to kill `xscreensaver-demo' with a crash
289 instead of a graceful exit.
290 * Updated xscreensaver.pam to the Red Hat 7.3 way.
291 * More Gnome2-related configure crap.
292 * Updated to latest `config.guess' and `config.sub'.
293 * Fixed occasional core dump in `distort'.
294 * Added a Linux fsck failure and kernel panic to `bsod'.
295 * Added MacOS X kernel panic to `bsod'.
296 * Fixed a bug in `bsod' (all bsod bugs are ironic.)
297 * Fixed a bug that caused `xscreensaver-gl-helper' to
298 print a nonsense visual ID with some versions of
299 `printf': this could cause GL programs to display
300 incorrectly (e.g., flickery.)
301 Changes since 4.04: * More `configure' tweaks to try and get things working
302 on systems that both Gtk 1.x and 2.x installed.
303 * New hack, `endgame'.
304 * Minor updates to `gltext'.
305 Changes since 4.03: * Support for GTK 2.x / GNOME 2.x.
306 * The `configure' script will now use `pkg-config' if
307 you have it, in preference to `gtk-config', etc.
308 * New hacks, `lavalite', `queens', and `anemone'.
309 * Minor updates to `spheremonics', `gltext', `xmatrix'.
310 * You can use the mouse to manually spin most of the GL
311 hacks now (when they are displaying in a window.)
312 * Fixed a bug in `webcollage' (due to recent Alta Vista
313 url changes) that was causing it to try and load
314 incorrect image URLs.
315 * Made `xscreensaver-getimage' use gdk_pixbuf if it is
316 available: this means that those hacks that load images
317 will no longer rely on "xv", "xloadimage", etc. This
318 will close a race condition that could sometimes cause
319 your desktop background to be changed; and also makes
320 it possible for those programs to operate on image
321 files when running in windowed mode.
322 * `webcollage' can now be used in conjunction with
323 `driftnet' to display images snooped from your local
324 ethernet instead of obtained from search engines.
325 * Added man pages for all the hacks that didn't have
327 Changes since 4.02: * New hack, `spheremonics'.
328 * Minor updates to `webcollage', `cage', `moebius',
329 `morph3d', `boxed', `circuit', and `helix'.
330 * `pulsar' and `extrusion' can now load texture JPEGs.
331 * `rubik' now does non-square cubes.
332 * `fluidballs' now does various sizes of balls.
333 * `menger' and `sierpinski3d' now also show polygon
335 * `molecule' displays real subscripts in the formulae.
336 * GTK internationalization/localization support.
337 * Better detection of the various versions of libxml.
338 * Upgraded to autoconf 2.53 (from 2.13.)
339 Changes since 4.01: * Plugged a few minor leaks in `xscreensaver' and
341 * New hacks, `cubenetic' and `fluidballs'.
343 * Fixed sphere projection error in `glplanet'; installed
344 a better image of earth.
345 * Added Win2K and MacOS 1 crashes to `bsod'.
346 * Put back previous (better) version of `forest' that
347 was accidentially downgraded in the last release.
348 * New version of `bumps'.
349 * Made FPS computation in GL hacks more efficient: it
350 will influence the results less, thus resulting in
351 higher (but more accurate) reported frame rates.
352 Changes since 4.00: * New hacks: `twang', `glsnake', `boxed', `sballs',
354 * New hacks `apollonian', `euler2d', `juggle',
355 `polyominoes' and `thornbird', from xlockmore.
356 * Merged recent xlockmore changes into `ant', `braid',
357 `demon', `discrete', `drift', `fadeplot', `forest',
358 `grav', `hopalong', `ifs', `laser', `lightning',
359 `lisa', `lissie', `loop', `mountain', `penrose',
360 `rotor', `sierpinski', `slip', `sphere', `spiral',
361 `strange', and `vines'.
362 * Fixed the `gltext' bug that sometimes caused
363 horizontal lines to vanish again. This time for sure.
364 * Sped up `webcollage' by adding a C helper program to
365 replace the PPM pipeline. It also pastes images
366 semi-transparently now.
367 * Added support for the gdk_pixbuf library: if this lib
368 is available, then `blitspin', `xflame', and `flag'
369 can load GIF, JPEG, and PNG images in addition to XPM
371 * Fixed a rare race condition where the desktop-grabbing
372 hacks could sometimes leave the screen wedged, if the
373 user moved the mouse exactly when they were grabbing
374 the screen image (it would un-wedge the next time the
375 saver timed out or was activated.)
376 * Fixed incorrect colors in the screen-grabbing GL hacks
377 (`gflux' and `flipscreen3d'.)
378 * Made SIGHUP restart the daemon process (though using
379 `xscreensaver-command -restart' is still the preferred
381 * Tweaks to `xspirograph'.
382 * Minor configure and portability tweaks.
383 Changes since 3.34: * Redesigned `xscreensaver-demo' GUI: it now includes
384 small-preview and per-hack configuration dialogs.
385 * Added three new modes of operation: `One Screen Saver',
386 `Blank Screen', and `Don't Blank' (in addition to the
387 historical `Random Screen Saver').
388 * Configure now defaults to installing the hacks in
389 <prefix>/lib/xscreensaver/ instead of <prefix>/bin/.
390 (Most distros already did it this way.)
391 * New GL hacks, `menger', `engine', `flipscreen3d'.
392 * Made `sierpinski3d' be more colorful.
393 * New versions of `xmatrix' and `nerverot'.
394 * Fixed a bug in `starwars' that made the font be drawn
395 with thin lines in -root mode.
396 * Fixed a bad colormap bug in `crystal' that could make
397 *subsequent* hacks malfunction!
398 * Made `gflux' able to grab screen images (`-mode grab').
399 * Updated `webcollage' for recent search engine changes.
400 * Removed most command-line options to `xscreensaver':
401 just edit the ~/.xscreensaver file instead.
402 * Improved behavior on multi-screen and Xinerama systems:
403 the mouse now stays on the screen where the user left
404 it, and the password and splash dialogs always appear
405 on the screen that has the mouse.
406 * Made the splash dialog use more Gtk-like colors;
407 made it have only two buttons, "Settings" and "Help".
408 * Made `sonar' understand `.ssh/known_hosts2' format
409 files, and be better about stripping out illegal
411 Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
412 some versions of the GL libraries (appear to) allocate
413 hundreds of megs for every GL program, so `memoryLimit'
414 was causing GL programs to malfunction or crash on
416 * Improved fading on TrueColor XFree86 4.1.x systems.
417 * New GL hack, `circuit'.
418 * Added `fuzz' mode to `decayscreen'.
419 * New version of `whirlygig'.
420 * Added links to `xplanet' and `sphereEversion'.
421 * Fixed rare race condition that could make `sonar' hang.
422 * Fixed potential crash in `speedmine'.
423 * Made `xscreensaver-demo' not crash when imageDirectory
424 was set to a non-existent directory.
425 * Made `xscreensaver-getimage-video' invoke XawTV's
426 `streamer' program better.
427 * Made `phosphor' and `starwars' deal with CR, LF,
428 or CRLF line endings.
429 * Changes for Cygwin compilation environments.
430 * Made `sonar' compile on systems that can't ping.
431 * Configure changes for HPUX 10.20.
432 * Made PAM code work on Red Had 4.2 systems.
433 * Made `xscreensaver-command -deactivate' work when the
434 saver is not active: what that does is reset the idle
435 timer, as if keyboard input had been detected. This
436 was added for the benefit of people writing DVD-playing
437 software: they can now prevent the screensaver from
438 kicking in by sending a -deactivate message once a
439 minute while the movie is playing and not paused.
440 * Various minor portability tweaks.
441 Changes since 3.32: * New hacks, `speedmine' and `whirlygig'.
442 * Sped up `pyro', made the explosions look a bit better.
443 * Added better stars to `glplanet' and `starwars'.
444 * Many internal changes to `webcollage'.
445 * Some new options to `attraction'.
446 * Minor fix to `noseguy' to avoid un-erased pixels.
447 * Rewrote the screen-eraser effects so that they complete
448 in the same amount of time regardless of how slow
449 your X server is (some of them were glacial on servers
451 * Fixed a potential free memory reference that could
452 sometimes cause a crash at startup.
453 * Possibly fixed a problem that could cause the daemon
454 to crash with an X error. I was never able to
455 reproduce this problem, but I think I might have
456 figured out what caused it.
457 * Worked around a problem that caused PAM authentication
458 to fail on some Red Hat 7.x systems.
459 * Added a `memoryLimit' parameter that controls the
460 amount of memory a graphics hack may allocate: if they
461 try to allocate more than this, malloc() will fail
462 (and they will exit or (safely) crash, rather than
463 hogging memory.) Default is 50M.
464 * Made `gnome-help-browser' be the default way to display
465 man pages in `xscreensaver-demo', if running on a
467 Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
468 now operate on randomly chosen image files from disk,
469 or on frames captured from the system's video input,
470 instead of (or in addition to) manipulating images of
472 * Rewrote `vidwhacker' to use the new image-grabbing
474 * Made fading work on TrueColor XFree86 4.x systems.
475 * Fixed a subtle rendering bug in `atlantis' (the fish
477 * Made `atlantis' have a texture simulating light
478 reflections from the surface of the ocean.
479 * Fixed up label placement in `molecule'.
480 * Better color bars in `xteevee'.
481 * Made `install-strip' not try to strip scripts.
482 Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
483 the documentation to reflect the fact that all your
484 DPMS settings are now belong to xscreensaver.
485 * Fixed the `xscreensaver.spec' file so that `--force'
487 * New versions of `rotzoomer' and `nerverot'.
488 * Fixed an OSF/1 compilation problem in `molecule'.
489 Changes since 3.29: * New hacks, `molecule', `dangerball', and `rotzoomer'.
490 * New version of `gflux'.
491 * Made `gltext' able to display the current time.
492 * Fixed a floating-point-precision problem in `gltext'
493 that sometimes caused horizontal lines to vanish.
494 * Removed the `-window-id' option from the hacks:
495 it never worked right, and was unnecessary.
496 * Made the `starwars' hack use thicker lines, antialias
497 the text, and fade out at the far edge instead of just
499 * Fixed an SHM segment leak in `moire'.
500 Changes since 3.28: * Better rendering of the new logo.
501 * New hack, `gltext'.
502 * Added `-planetary' option to `gears', to draw a
503 different kind of gear system.
504 * Made motion and rotation be smoother in `gears',
505 `glplanet', `moebius', `rubik', and `sierpinski3d'.
506 * Improved coloration in `sierpinski3d'.
507 * Made the GL hacks react to window size changes.
508 * Made most of the GL hacks take a -fps option (like
509 `pulsar' did), so you can use them to benchmark your
511 * Fixed the previous fix to `sonar'.
512 * Minor fix to `nerverot'.
513 Made sonar able to ping hosts on DEC OSF1.
514 * Eliminated a bogus "didn't get enough colors" warning
515 in some of the hacks.
516 Changes since 3.27: * New logo for xscreensaver!
517 * New hacks, `starwars' and `stonerview'.
518 * Made the motion of the bouncing ball in `stairs' be a
520 * Made newly-added screenhacks be added to .xscreensaver
521 automatically: if there are hacks in the app-defaults
522 file that are not also in ~/.xscreensaver, they will
523 be added to the end of the list.
524 * Redid the `Screensaver Options' part of the control
525 panel; xscreensaver now lets you configure your DPMS
527 * Fixed some Makefile problems with non-GL builds.
528 * Fixed detection of MesaGL for version 3.3.
529 * Better workaround to Red Hat 7.0's broken gcc.
530 * Added Sparc Solaris kernel panic to `bsod'.
531 Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
532 * Fixed a free-memory-reference bug in `sonar'.
533 * Better error handling when there are no suitable GL
535 * Added diagnostic dialog when xscreensaver-demo is
536 unable to launch xscreensaver (e.g., when running as
538 * Fixed a bug that caused screenhack argument changes
539 to be ignored when xscreensaver-demo was running as
540 root (if "root" and "nobody" have different home
542 * Made the programs default to ":0" if $DISPLAY is unset.
543 * Made the `-verbose' output include information about
544 which server extensions were supported at compile time.
545 * Worked around Red Hat 7.0's broken gcc 2.96.
546 * Updated default delays on the GL hacks to look better
547 on machines with super-fast 3D hardware.
548 * Install `screensaver-properties-capplet' to work around
549 the usual egregious GNOME lossage.
550 Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
551 xscreensaver-demo (Gtk version only.)
552 * New hacks `hyperball', `xrayswarm', and `gflux'.
553 * New versions of `nerverot', `galaxy', and `hypercube'.
554 * Small fixes to `phosphor', `shadebobs', `xflame',
556 * Added external helper program `xscreensaver-gl-helper'
557 to figure out which X visual to use for OpenGL
559 * Configure updates for XFree86 4.0, and for BSD.
560 * Made it be more tolerant of bogus /etc/group files.
561 * When installing the PAM config file, first try to just
562 copy an existing "xdm" or "login" config file, so that
563 xscreensaver does authentication in the same way as the
565 Changes since 3.24: * New hack, `nerverot'.
566 * Added BSD kernel panic to `bsod'.
567 * New version of `shadebobs'.
568 * New version of `petri'.
569 * Updated `webcollage' to handle recent Altavista URL
570 format changes; made it search the AP photo gallery.
571 * Revamped command-line options of `sonar' and made it
572 properly handle subnets.
573 * The `bubbles' hack can now trickle up or down the
575 * The `xsublim' hack can now read its text from programs.
576 * Support for GLE version 3 in `extrusion'.
577 * Fixed compilation problems in `maze'.
578 * Fixed a rare crash in `flow'.
579 * Fixes for minor installation problems.
580 Changes since 3.23: * Added `-ignorant' option to `maze' hack.
581 * Updates to `critical', `bsod', `xflame', and `flow'.
582 * Added support for Kerberos 5 (via its Kerberos 4
583 compatibility layer.)
584 * Fixed a bad leak in `xteevee'.
585 * Updated `webcollage' to handle recent Altavista URL
587 * Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
588 since they were confusing people: all changes are now
590 * Made xscreensaver-demo install itself into the Gnome
592 Changes since 3.22: * Fixed some misplaced text fields in the Motif version
593 of xscreensaver-demo; fixed a crash in the Gtk version
594 that would happen if the programs list was empty.
595 * Fixed a recently-introduced bug in `pulsar'.
596 * Made `sierpinski3d' use solid tetrahedrons instead of
598 * Added `-trace' option to `xmatrix'.
599 * Added new hacks `xteevee' and `xspirograph'.
600 Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
601 * Rewrote the Motif version of xscreensaver-demo to
602 match the new Gtk version.
603 * The Athena toolkit is no longer supported.
604 Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
605 * Fixed a few visual selection bugs. I think the proper
606 GL visual should be used with nVidia systems now.
607 * Made the Makefiles obey $install_prefix.
608 * Made the `xscreensaver.spec' file able to generate both
609 GL and non-GL packages simultaneously.
610 Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
611 * Made `xscreensaver-command -exit' be silent when no
612 screen saver was running (instead of complaining.)
613 * Made `webcollage' and `vidwhacker' use `xloadimage'
614 when available (in addition to `xli' and `xv'.)
615 * Improved memory usage in `petri' and gave it a hard
616 cap on how much memory it can allocate.
617 * Added `-watch' option to `xscreensaver-command'.
618 * Made `xscreensaver-demo' come up with the
619 most-recently-run hack selected by default.
620 * Rewrote the Gtk version of `xscreensaver-demo'.
621 It's a lot easier to use now.
622 * Extended the format of the programs list in the
623 .xscreensaver file, for the benefit of the new
624 capabilities of `xscreensaver-demo'.
625 NOTE: you might want to delete your ~/.xscreensaver
626 file and allow it to be re-created! The old one
627 should still work, but xscreensaver-demo won't be as
629 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
630 * New hack, `extrusion'.
631 * Some of the web sites that `webcollage' was using as
632 its sources changed formats; tweaked it to understand
634 * Added typeahead in the password dialog: if the screen
635 is locked, and you unlock it by typing a character,
636 that key will be automatically inserted in the
637 password dialog (unless it is Return, Enter, Space,
638 or a non-printing key like Shift.)
639 * Made `xmatrix' take a `-small' option, since some
640 folks with tiny screens prefer a smaller font.
641 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
642 * Added `ccurve', `blaster', and `bumps' hacks.
643 * Replaced `forest' hack with a rewritten version.
644 * Worked around a Xinerama server bug.
645 * Fixed a bug I introduced in 3.10 that caused some
646 hacks to print out superfluous warnings about not
647 having gotten enough colors.
648 * Made `sproingies' obey the `-delay' option.
649 * Fixed a portability bug in `shadebobs'.
650 * Made `webcollage' and `vidwhacker' use `xli' in
651 preference to `xv', if it is available.
652 * Added a new source of images to `webcollage'.
653 * If running under KDE, xscreensaver will add itself to
654 KDE's list of screensavers (via xscreensaver.kss.)
655 * Improved detection of GL libraries.
656 * Made the password dialog include the date and time.
657 Changes since 3.16: * New version of `webcollage' -- deals better with
658 corrupted images, and can use an http proxy.
659 * New hack, `xsublim' (run it in the background,
660 rather than adding it to the programs list.)
661 * The xscreensaver daemon was leaking a file descriptor
662 each time you edited your .xscreensaver file. Fixed.
663 Changes since 3.15: * New version of `shadebobs'.
664 * Improved image selection in `webcollage', and sped it
666 * Made configure find the right version of perl.
667 * Rewrote the CGI part of `webcollage'.
668 * `make clean' was deleting some things it shouldn't.
669 * Fixed a typo in the default programs list.
670 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
671 * Added a `-stdout' arg to `vidwhacker' so that it can
672 be used in a pipeline.
673 * Made `petri' use less memory.
674 Changes since 3.13: * Various improvements to the Gtk port.
675 * Turned off PAM by default on Solaris, since PAM seems
676 generally to be misconfigured out-of-the-box.
677 * Made the `--without-gtk' configure option work.
678 * Made configure check the Gtk version number, since it
680 * Fixed a bug in the code that attempted to prevent
681 changes of screen resolution while the screen is
683 * Fixed a race condition in `xscreensaver-demo' that
684 could cause an X error at startup.
685 * Added `-transparent' option to `deluxe'.
686 * Added `petri' hack.
687 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
688 * Made it possible to build Motif, Gtk, and Athena
689 versions of `xscreensaver-demo' in the same directory
690 without reconfiguring.
691 * Made `xscreensaver-demo' chase symlinks before writing
692 the .xscreensaver file, so that if .xscreensaver is
693 itself a symlink, the underlying file will be replaced
695 * Some Makefile and configure tweaks for Solaris and
697 * Made it possible to set the fire color in `xflame'.
698 * Made transparency work in TrueColor (for `goop' and
700 * Fixed a multi-head bug introduced by the virtual
702 Changes since 3.11: * Made it so that you can't scroll the screen while the
703 lock dialog is up (with XFree86 virtual viewports.)
704 * Fixed a bug in `flag' that caused bob's chin to get cut
705 off after a few iterations.
706 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
707 less like a computer screen and more like the
708 typewritten paper it's supposed to be.
709 * New version of `pulsar'.
710 * Fixed Solaris compilation problem in `phosphor'.
711 * Made xscreensaver notice XFree86's virtual root window
712 hack, so that if the X server's root window is larger
713 than the monitor's displayable resolution, the screen
714 saver will limit itself to the area that actually
715 appears on the screen.
716 * Made the xscreensaver daemon do a better job of
717 picking the visual class that should be used for GL
718 programs. Less user intervention should be needed
719 now: you can use the logical visual name `GL' instead
720 of having to figure out by hand which one to use.
721 * Oops, the visual was defaulting to "best" instead of
722 "default", because the .xscreensaver file was not being
723 loaded quite early enough.
724 * Made configure figure out how to build icmp ping
725 support into the `sonar' hack automatically.
726 * Made warnings about not being able to read shadow
727 passwords not be printed if compiled with PAM support.
728 * Improved PAM startup diagnostics.
729 * Worked around the Solaris PAM bug that was causing
730 crashes there, so now PAM is turned on by default.
731 * Made configure detect the number of arguments that
732 pam_strerror() takes, since on Linux, this apparently
733 changed between 2.0 and 2.2, sigh.
734 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
735 as well as "keyboard".
736 * Made xscreensaver notice when there has been a sudden
737 large jump in wall-clock time, and if so, lock right
738 away, instead of waiting for "lockTimeout" to expire
739 first. (Laptops need this for safer recovery from
741 * Added `-throttle' option to `xscreensaver-command'.
742 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
743 * Fixed a bug in the color allocator that sometimes
744 caused `starfish' to fall back to monochrome.
745 * Reduced the amount of code that runs before root
746 privileges are disavowed: "normal" and "shadow"
747 passwords now do some initialization as root, but the
748 PAM and Kerberos authorization schemes will be
749 initialized while running as "nobody". Supposedly
750 this closes a potential security hole when using
752 * Added some more sanity checking to configure.
753 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
754 `spotlight', and `critical' hacks.
755 * Added some new modes to `decayscreen'.
756 * Made `deluxe' work in monochrome.
757 * Generalized usage of the Double-Buffer server extension
758 in several hacks (`compass', `deluxe', `interference',
759 `kumppa', and `moire2'.)
760 * Fixed another visual-depth problem in `rd-bomb'.
761 * The screen saver will now defer blanking if neither
762 the keyboard nor the mouse could be grabbed. Instead,
763 it will just try again in a few minutes. This fixes
764 a bad interaction between xscreensaver and programs
765 like VMware that hold the mouse and keyboard grabbed
767 * Added a new erase mode (expanding spiral.)
768 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
769 * Added `penetrate' and `deluxe' hacks.
770 * When linking against Motif 2.x, also link against XPM.
771 * Added support for using /proc/interrupts for idle
772 detection on Linux. Now xscreensaver shouldn't kick
773 in when the user is active on a non-X virtual console.
774 * Upgraded to autoconf 2.13.
775 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
776 in properly; check for _Xsetlocale in -lXintl.)
777 * Portability fixes for sonar.c.
778 * Fixed a compilation problem when you have GL but don't
780 * Made configure notice when MesaGL requires -lpthread.
781 * Made `flame' ignore SIGFPE (not sure if this is the
782 right fix; it seems only to be needed on FreeBSD.)
783 * Kludged `rd-bomb' work on visuals that are of depth 24
784 but that *do not* support pixmaps of depth 32.
785 * Fixed `halo' to work properly in TrueColor.
786 * Changed `xscreensaver.spec' to install the hacks in
787 /usr/X11R6/lib/xscreensaver/ by default, since that's
788 where recent Red Hat distributions put them.
790 * Updated versions of `crystal', `hopalong', and `flow'
792 * Imported `demon' and `loop' modes from xlockmore.
793 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
794 it was always installing a colormap if the
795 `installColormap' preference was set, meaning that
796 `xearth', `xv' and friends were using the wrong
797 colors on 8-bit systems.
798 * Turned off HAVE_PING in `sonar', since it compiles
799 on some Linux systems, but not others of similar
801 Changes since 3.04: * Fixed an off-by-1 in `distort'.
802 * Added `sonar' hack.
803 * New version of `glplanet' (with stars.)
804 * Made all hacks exit when you type `q' or `ESC' at them,
805 and made them obey the WM_DELETE_WINDOW ClientMessage.
806 * Fixed a nonfatal buffer overrun in lament (note:
807 lament still doesn't work with MesaGL 3.0: it dies in
808 lambda_textured_triangle1(), which is Mesa's bug, not
810 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
811 for other folks to generate RPMs.
812 * Made the password code work on HPUX in the situation
813 where: ``enhanced security'' is available; but not
814 used; but the user typed a password more than 8
815 characters long anyway. FTSOHPUX.
816 Changes since 3.02: * Made locking work when passwd aging is enabled.
817 * Added support for PAM (Pluggable Authentication
818 Modules.) It is still turned off by default, though,
819 since it doesn't seem to work on Solaris 2.6, and has
820 been behaving erratically on Red Hat 5.1.
821 * Made each possible authentication method be tried in
822 turn until one succeeds; this means that Kerberos is
823 being used, we will first check Kerberos, and if that
824 fails, will then consult the local password file.
826 * Save and restore the bits under the passwd dialog,
827 to avoid leaving a black rectangle behind when
828 unlocking is cancelled.
829 Changes since 3.01: * Not everyone has sys/select.h, sigh...
830 Changes since 3.00: * Some fixes to `reflect'.
832 * Made it log unsuccessful attempts to unlock the screen
834 * Fixed a bug where `xscreensaver-demo' could be seeing
835 a different programs list than `xscreensaver' did.
836 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
837 or Athena: demo-mode and the preferences panel are no
838 longer built in to the daemon, but are now handled by
839 an external program, `xscreensaver-demo'.
840 (I decided that this, along with the recent addition
841 of the `.xscreensaver' config file, justified bumping
842 the version number to 3.00, since this is a fairly
843 major architectural change.)
844 * Lines in the `*programs' resource may now begin with
845 the character "-", meaning "don't run this hack."
846 In this way, it's possible to disable a hack without
847 throwing away the information about it (making it
848 easier to change your mind later.) Eventually the
849 preferences/demo mode GUI should represent this as a
850 checkbox or something.
851 * Fixed a short race condition where it was possible for
852 xscreensaver to die with a BadWindow error if it was
853 blanking the screen just as another window was being
855 * Made it possible to disable specific modes in `bsod'.
856 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
857 many valves. Made the viewpoint in `pipes' be selected
858 randomly instead of always being -10 degrees.
859 * Fixed a bug in the XSHM code, in the case where the
860 server supports the XSHM extension but is not the same
861 machine as the client.
862 * Made `rd-bomb' default to taking up the whole screen.
863 * Made it not try to do fading/unfading if no PseudoColor
865 * Initial attempt at supporting VT-locking (doesn't work
867 * Eliminated the `captureStdout' resource; now
868 `captureStderr' controls both streams.
869 * Added `-capture-stderr' and `-no-capture-stderr'
870 command-line arguments.
871 * Added `glplanet' hack.
872 * When a hack is selected with `xscreensaver-command
873 -select', that hack will be used until further notice
874 (until the saver turns off, or another activation
876 Changes since 2.32: * Made `xscreensaver-command' print error messages:
877 the xscreensaver daemon now responds to ClientMessage
878 events by writing a response message on a window
879 property, instead of just writing to its stderr.
880 * Made the ~/.xscreensaver file be automatically reloaded
881 when the file date changes.
882 * The password dialog and splash screen no longer depend
883 on Motif or Athena. This should clear up a number of
884 focus problems, and is the first step on the path
885 toward moving all of the Motif/Athena/whatever code
886 out of the xscreensaver daemon, and into external
888 * Don't complain about LessTif 0.86 any more, since the
889 new password dialog makes that problem go away.
890 * Configure tweaks for Irix 6.5, SunOS 5.something.
891 * New `-reflect' option to `distort'.
892 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
893 so that the Preferences panel can save its settings.
894 * New version of `rubik'.
895 * Added `-select N' argument to `xscreensaver-command'.
896 * Oops, left out some of the `bubbles3d' files...
897 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
898 * Made configure warn against MesaGL 2.6.
899 * Fixed X error at startup when using non-default visual.
900 * New version of `crystal', `ant', and `atlantis' from
902 * New hack, `bubble3d'.
903 * Added some new modes to `bsod'.
904 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
905 to be after Motif instead of before (Lesstif on Irix
907 Changes since 2.28: * Work around a bash bug in configure.
908 * Tweaked HPUX paths again. FTSOHPUX.
909 * Made configure recommend against LessTif 0.86, due
910 to a bug in that version that causes a security hole
911 in the screen locking code. LessTif 0.87 will fix it.
912 * Made all of the `--with' options to `configure' accept
913 a directory option as well (so that --with-motif=/FOO
914 will add -I/FOO/include -L/FOO/lib). I believe this is
915 the Configure Party Line of how do to such things.
916 * Fixed a bug where the mouse was left un-grabbed
917 after the first time the graphics hack was changed
918 (simplified all of the mouse-grabbing logic.)
919 * Maybe possibly perhaps made `vidwhacker' really not
920 leave stray xv windows around. This time for sure.
921 * Added a new erase mode (random dots fizzling out.)
922 * Added `-prefs' argument to `xscreensaver-command',
923 that brings up the Preferences dialog directly (it
924 seems that nobody ever noticed the `Preferences' button
925 on the Demo Mode dialog, maybe this will help.)
926 * Added a splash screen. Turn it off with *splash:false.
927 Changes since 2.27: * Better macsbug text in `bsod'.
928 * New version of `distort' with many new modes.
929 * Plugged a leak in `coral'.
930 * Tweaked configure for HPUX.
931 * Removed some compiler warnings.
932 * More consistent usage of stderr versus stdout.
933 * More diagnostics should an X error occur.
934 * Fixed a possible crash in SGI-specific unfading code.
935 Changes since 2.26: * Improved version of `distort'.
936 * Made `lament' compile against OpenGL 1.0 (though it
937 still requires 1.1 to work properly.)
938 * Updated my email address and home page.
939 Changes since 2.24: * Improved motion in `rd-bomb'.
940 * Added XSHM (shared memory extension) support to the
941 `distort', `interference', `moire', `rd-bomb', and
942 `swirl' hacks, which speeds them up a bit.
943 * Added `lament' hack.
944 Changes since 2.23: * Tweaked the order of the -L options again.
945 * Cleaned up configure's `--help' message.
946 * Added `kumppa' hack.
947 * Smarter maze-solving algorithm in `maze'.
948 * Took `xlyap' out of the default list of hacks, since
949 it's just incredibly buggy (and slow.) Maybe someday
950 someone will fix it...
951 * Added `distort' hack, but didn't add it to the default
952 list (yet) because it's still too slow.
953 * Made the Athena demo dialog look more like the Motif
954 version; it has a text-entry field now, too.
955 * Made the Athena password dialog echo asterisks, like
956 Motif does, instead of using a flyspeck font.
957 * Some random configure tweaks.
958 * Added a `timestamp' resource that makes the `-verbose'
959 messages include the time at which they were printed.
960 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
961 let the user's "*background" resource show through.
962 Fixed it in a different way.
963 Changes since 2.21: * Added support for the DPMS server extension (Display
964 Power Management System.)
965 * Made configure advertize the `--enable-subdir' option a
966 little more, since that seemed to cause some people
967 stress. Also, made that directory be built into the
968 xscreensaver executable, as a hardcoded prefix to
969 $PATH. (Might help, shouldn't hurt.)
970 * Made configure prefer the two-arg gettimeofday to the
971 one-arg version, since AIX doesn't have any prototypes.
972 * Made it work with Xaw3d (the 3D Athena library.)
973 * Made `make install' create directories as necessary.
974 * New version of lmorph from Sverre.
975 * Added `crystal' and `discreet' hacks from xlockmore.
976 * Added a new mode to `bsod'.
977 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
978 (It now describes the two states as "screen blanked
979 since..." and "screen non-blanked since..." instead of
980 "active since..." and "inactive since..." which a lot
981 of people interpreted as meaning the opposite of what
983 * Improved some error messages, in the hopes of making
984 the distinction between the xscreensaver and
985 xscreensaver-command programs more obvious.
986 * Rewrote (and reorganized) parts of the xscreensaver and
987 xscreensaver-command manual pages.
988 * Renamed xscreensaver's `-lock' command-line option to
989 be `-lock-mode', to avoid confusion with the `-lock'
990 option to xscreensaver-command, which does a totally
992 * Removed xscreensaver's `-demo' command-line option for
993 a similar reason; use `xscreensaver-command -demo'
995 * Disabled SGI's ``scheme'' nonsense in a better way than
996 fully-qualifying the background colors in every single
998 * Fixed some other minor cosmetic problems when *sgiMode
1000 * Fixed an X error in `bsod -root' (how ironic...)
1001 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
1002 grabbed properly (meaning the window manager menu could
1003 pop up over the demo-mode display.)
1004 * Fixed a bug that made the stderr output sometimes get
1006 * Fixed a bug that made the demo-mode scrollbar move too
1008 * Protected against a possible buffer overflow.
1009 * Made `vidwhacker' not leave stray xv windows around.
1010 * New version of `ant' so that Bagley doesn't calve.
1011 * Make configure on AIX get XShm from the right library.
1012 Changes since 2.18: * One file was missing from the tar file. Fixed.
1013 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
1014 * Added `epicycle' hack.
1015 * Added `interference' hack.
1016 * Added `truchet' hack.
1017 * Added `bsod' hack.
1018 * Added some new modes to `vidwhacker'.
1019 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
1020 can draw on arbitrary externally-provided windows.
1021 * Synched with xlockmore 4.11a01.
1022 * Added `flow' hack.
1023 * Added `atlantis' GL hack.
1024 * Renamed `puzzle' hack to `jigsaw', since xlock already
1025 had a different mode called `puzzle'.
1026 * Made it self-configure properly when Motif 2.1.0 is
1027 being used (requires -lXp now, sigh...)
1028 Changes since 2.15: * Made `flag' able to do XPM images.
1029 * New look for the xscreensaver logo (`xroger').
1030 * Fixed compilation error on Suns with adjunct passwords.
1031 * Got multi-architecture builds working again.
1032 * Some configure tweaks for building on HPUX and Solaris.
1033 * Fixed bug in decayscreen.
1034 * Fixed typo in passwd.c.
1035 * Made `cynosure' not die when colormap is full.
1036 Changes since 2.14: * Added `cynosure' hack.
1037 * Added `moire2' hack.
1038 * Tweaked `erase.c' some more.
1039 * Made unfading a bit smoother.
1040 * Added `vidwhacker' hack (not installed by default.)
1041 * Added `stairs' hack.
1042 * Split `escher' into `cage' and `moebius', as per
1044 * Changed subprocess handling to use sigaction() instead
1045 of signal() if it's available (this is necessary for
1046 SCO but should work fine on other systems too.)
1047 * Various other tweaks.
1048 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
1049 * Put in some kludges to work around a LessTif bug.
1050 * XScreenSaver is known to work with LessTif 0.82 now.
1051 * Made fading work on high-end SGI video hardware.
1052 * Fixed another SGI-specific bug in screen grabbing;
1053 will the madness never cease?
1054 * Fixed another crash in `xlyap'.
1055 Changes since 2.12: * Made `decayscreen' do directions other than down.
1056 * Improved `puzzle'.
1057 * Fixed a crash in `xlyap'.
1058 * Added CDE info to the man page, removed `cde.txt'.
1059 * Configure tweaks for Zippy.
1060 * Turned off the signal handling in `bubbles' because
1061 it was sometimes failing to die.
1062 * Added `hacks/xscreensaver-sgigl.c' to make it possible
1063 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
1064 with xscreensaver. Finally!
1065 * Fixed a buffer overrun in the locking code that some
1066 wily, malicious cracker must have slipped in.
1067 * Disabled Motif drag-and-drool in the dialog box
1068 buttons, since it's broken in some old versions of
1070 Changes since 2.11: * Added `README.debugging'.
1071 * Added `puzzle' hack.
1072 * Added `xlyap' hack.
1073 * Added `default-n' as a visual name, so that one can
1074 have -install on by default, but turn it off for
1075 certain poorly-behaved hacks (like xv.)
1076 * Added support for grabbing frames of external video
1077 (on SGI) to the screen-grabbing hacks (decayscreen,
1078 slidescreen, slip, blitspin, and puzzle.)
1079 * Improved look of tiles in `slidescreen'; fixed its
1080 color allocation problem.
1081 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
1082 * Added `lissie', `mountain', `triangle', `worm',
1083 `rotor', and `ant' from xlockmore.
1084 * Updated `sierpinski', `galaxy', and `lisa'.
1085 * Thickened the lines in `braid' and `lmorph'.
1086 * Updated VMS makefiles.
1087 * Renamed `fract' to `vines'.
1088 * Added `xjack' hack.
1089 * Made a few more hacks use erase.c, and added a few
1091 * Fixed compilation problem with Sun's version of OpenGL.
1092 * Added ability to use sigaction() instead of signal()
1093 to work around a SCO kernel bug.
1094 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
1095 * Configure tweaks for *BSD.
1096 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
1097 * New version of `maze' with some new algorithms.
1098 * New colorized version of `rocks'.
1099 * Fixed a bug in qix on 64-bit machines.
1100 * Fixed a bug in the -time option.
1101 * Fixed a bug in configure related to LessTif.
1102 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
1103 * Made multi-architecture ($VPATH) builds work properly.
1104 * Merged new GL stuff from xlockmore (rubik, morph3d.)
1105 * Fixed intermittent crashes in `imsmap' and `munch'.
1106 * Added `fadeplot' hack from xlockmore.
1107 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
1108 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
1109 configure to detect the extra-random -Xss library.
1110 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
1111 * Fixed low-color behavior of `goop', `pyro', `starfish',
1112 `greynetic', `flame', `halo', and `moire'.
1113 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
1114 * Added `munch' hack.
1115 * Added basic dependencies to the Makefile.in files.
1116 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
1117 * Made the yow/fortune program be a configure option.
1118 * Various configure tweaks.
1119 Changes since 2.00: * Added `goop' and `starfish' hacks.
1120 * Added colomap cycling to `halo'.
1121 * Made `attraction' use the new colormap allocator.
1122 * Added better $PATH diagnostics.
1123 * There was a bug in frand! Color selection should be
1125 Changes since 1.34: * Converted to use `configure' instead of `imake'.
1126 * ANSI C is now required.
1127 * Added Kerberos locking support, from Nat Lanza.
1128 * Made the stderr text use overlay planes, if possible.
1129 * Reworked the xlockmore compatibility stuff again.
1130 * Added `gears', `superquadrics', `escher', `pipes',
1131 and `sproingies' hacks (depend on OpenGL.)
1132 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
1133 Changes since 1.32: * Made it work with multi-headed displays.
1134 * Generalized sub-process management (Unix sucks!)
1135 * Added interactive mouse frobbing to Julia.
1136 * Added (untested) support for HPUX shadow passwords.
1137 * Made normal non-shadow passwords be checked if the
1138 shadow passwords aren't accessible for some reason.
1139 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
1140 made it possible to specify the desired visual on a
1142 * Cleaned up / restructured the driver: no more globals.
1143 * Made the Motif and Athena dialogs share more code.
1144 * Probably fixed some Athena colormap-installation bugs.
1145 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
1146 * Fixed divide-by-zero in bright random colormaps.
1147 * Added an improved version of xlock's `flag' hack.
1148 * Made unfading work better, and not flicker on SGIs.
1149 * Added `sphere', `forest', `lisa' hacks from xlockmore.
1150 * Added (untested) support for SunOS Adjunct passwords.
1151 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
1152 * Cleaned up xlockmore compatibility layer.
1153 * Made `blitspin' able to grab an image off the screen.
1154 * Ported `swirl' and `bouboule' hacks from xlockmore.
1155 * Made the driver more careful about not leaving bits on
1156 the screen, or allowing other windows to raise
1157 themselves: it now re-blanks the screen every so often.
1158 * Added `-time' option to `xscreensaver-command'.
1159 * Improved SGI screen-grabbing some more: now it can grab
1160 TrueColor screens into PseudoColor windows and have the
1161 colors still come out semi-reasonably.
1162 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
1163 SGIs when windows of different visuals are present, by
1164 using the XReadDisplay() extension to get a true 24-bit
1165 image out of the frame buffer.
1166 * Made `noseguy' be in color, if compiled with XPM.
1167 * Ported `braid', `drift', `fract', `galaxy', `grav',
1168 `ifs', `julia', `laser', `lightning', `penrose',
1169 `sierpinski', `slip', `spiral', and `strange' hacks
1171 * Merged `hopalong' hack with a more recent version.
1173 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
1174 * Merged in support for non-Motif locking and demo mode.
1175 * Made `blitspin' and `bubbles' work in TrueColor.
1176 * Fixed a stupid bug I introduced in `imsmap'.
1177 * Added `poly' and `gravity' options to `qix'.
1178 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
1179 * Made `fade' and `unfade' work on 8-bit SGIs.
1180 * Made the dialog boxes more Motify.
1181 * Added `bubbles' hack.
1182 Changes since 1.25: * Added `lmorph' hack.
1183 * Added viscosity and mouse-control to attraction.
1184 * Fixed possible bad color choices in qix and attraction.
1185 * Added ramp-mode to halo.
1186 * Added a new RNG, which is faster and more portable
1187 than using the RNG in libc.
1188 * Made locking work on SCO.
1189 * Various other minor tweaks that I don't remember.
1190 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
1191 and present them on the screensaver window itself.
1192 * Made demo mode work correctly with non-default visuals
1193 and color maps, instead of always using the defaults.
1194 * Added -visual argument to all included screenhacks.
1195 * Support for the R6 MIT-SCREEN-SAVER server extension.
1196 * Made the demo mode list scroll properly.
1197 * Added `pedal' hack.
1198 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
1199 decayscreen, and xroger. Fixed apparent conservation-
1200 of-mass problem in pyro; made the shrapnel round.
1201 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
1202 Changes since 1.21: * Minor tweaks for X11R6.
1203 * Fixes for non-default visuals.
1204 Changes since 1.20: * Fixed bug in color blitspin; added default image.
1205 * Added diagnostics to noseguy. Fixed off-by-one
1206 error in flame. Added some missing casts.
1207 Changes since 1.18: * Added `flame' hack.
1208 * Fixed a minor Motif dialog text field bug.
1209 * Fixed yet another XPointer-not-defined-in-R4 bug.
1210 Changes since 1.17: * Added support for shadow password files.
1211 * Fixed some Motif-related locking bugs.
1212 * Added diagnostics when locking is disabled.
1213 * Made blitspin able to use the XPM library.
1214 * Added `decayscreen' hack.
1215 Changes since 1.16: * Added `halo' hack.
1216 Changes since 1.15: * Portability fixes.
1217 Changes since 1.14: * Broke the driver up into more source files.
1218 * Moved the hacks into their own directory.
1219 * Made all `time' parameters accept the 00:00:00 syntax,
1220 so that even the parameters which are normally read as
1221 minutes can be specified in seconds.
1222 * Added colormap cycling to `imsmap'.
1223 * Made hyper work with K&R compilers.
1224 Changes since 1.13: * Added `orbit' option to `attraction' hack.
1225 * Added `lock-timeout' option.
1226 * Cleaned up options of `maze' hack.
1227 Changes since 1.8: * Added demo mode, and locking.
1228 * Added `maze' hack.
1229 * Added `norotate' option to `rocks' hack.
1230 Changes since 1.4: * Works when run from XDM before anyone logs in.
1232 * Can use `xv' as a slideshow without using up colormap
1233 entries while the screen is not blanked.
1234 * Fixed a BadDrawable error in non-XIdle mode.
1235 * Added `blitspin' and `imsmap'.
1236 Changes since 1.0: * Current list of included hacks is now: qix, helix,
1237 rorschach, attraction, greynetic, rocks, pyro,
1238 hopalong, and noseguy.