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 4.23: * New versions of `cube21', `glsnake', `celtic'.
80 * Backed out a DPMS-related patch that cause desktop
81 flickering with some X servers.
82 * Fixed startup crash in getgroups() when running setuid.
83 * Default to not displaying stderr on the saver window.
84 * Fixed bad free() in "Documentation" button.
85 * Don't try to run hacks that aren't installed.
86 * Minor fixes to various XML config files and man pages.
87 Changes since 4.22: * New hacks, `glhanoi', `cube21', `timetunnel',
88 `juggler3d', and `celtic'.
89 * New versions of `tangram', `webcollage', `hypertorus',
90 `polytopes', and `ripples'.
91 * `sonar' is now quiet about unresolvable hosts.
92 * Minor corrections to BASIC code in `apple2'.
93 * xscreensaver-demo now provides an RPM clue when none
94 of the hacks seem to be installed.
95 * Don't install `ant' by default, since there is some
96 Java tool of that name, which was causing confusion.
98 * Made screen grabbing work again on MacOS 10.4.2.
99 * No longer prints bogus warnings about ClientMessages
100 intended for the window manager.
101 * Ignore unprintable characters in passwd entry field.
102 * Fixed yet another cross-host-display image-loading
104 * `xscreensaver-command -watch' and `-time' now work
106 Changes since 4.21: * Fixed a bug in the new mouse-motion code that caused
107 the screen to never blank on multi-head non-Xinerama
109 * New hacks, `interaggregate', `antmaze', `tangram',
111 * Minor tweaks to `fiberlamp', `ifs', `slidescreen',
112 `zoom', `sonar', `fireworkx', `whirlwindwarp',
113 `bubble3d', and `rd-bomb'.
114 * Added motion blur to `blinkbox'.
115 * `bsod' now includes Longhorn's "RSOD", and OS/2.
116 * Fixed `-wireframe' usage in most hacks and man pages.
117 Changes since 4.20: * New hack: `fliptext'.
118 * Changed default configure installation directories:
119 /usr/bin/ for xscreensaver, etc.;
120 /usr/libexec/xscreensaver/ for hacks;
121 /usr/share/xscreensaver/config/ for xml files.
122 * All the text-manipulating screen savers can have their
123 text source configured via `xscreensaver-demo' now.
124 * xscreensaver.spec now builds three RPMs:
125 base (no hacks); extras (2d hacks); and gl-extras.
126 * Added `-program' and `-front' option to `gltext'.
127 * Added `-shells' to `molecule'.
128 * Fixed text-alpha glitch in `carousel'.
129 * New `pacman': the ghosts can be killed now.
130 * Fixed a bug in screen-grabbing GL hacks where images
131 would be tiled instead of scaled on machines that
132 can't do large textures.
133 * `webcollage' can hit Flickr now.
134 * New (rewritten) implementation of `ifs'.
135 * The unlock dialog can be made to have a "New Login"
136 button that will run `gdmflexiserver'. Experimental!
137 * Fixed non-ASCII display bug in `starwars'.
138 * Configure finds a default for imageDirectory.
139 * "xscreensaver-command -lock" now works even if
140 in "screensaver disabled" mode.
141 * If a bad password is typed while CapsLock is on, the
142 unlock dialog says "CapsLock?" instead of "Sorry".
143 * Mouse motion only counts as activity if the mouse moved
144 more than 10 pixels (so the screen won't unblank every
145 time you bump your desk.)
146 * New mode option "random-same": if you have multiple
147 monitors, this will run the *same* randomly chosen
148 hack on each screen, instead of different ones on each.
149 Changes since 4.19: * New hacks, `fiberlamp', `boing', `boxfit', and
151 * Rewrote `glslideshow' again: should be faster now.
152 * Sped up loading of images in GL programs.
153 * `starwars' uses texture-mapped fonts now.
154 * New `bsod' modes: tru64, hppa, and nvidia.
155 * Updates to `webcollage', `juggle', `pinion',
156 `fireworkx', `sonar', `extrusion', `substrate', and
158 Changes since 4.18: * New hacks, `substrate', `intermomentary', `fireworkx',
160 * New version of `flow'.
161 * Made /proc/interrupts work again on Linux 2.6.
162 * Made `analogtv' not hog the CPU.
163 * Made analogtv-based hacks work properly on PPC/ARM.
164 * Fixed a bad memory leak in `piecewise'.
165 * Minor updates to `sonar', `molecule', `glmatrix',
166 `galaxy', and `webcollage'.
167 * Removed support for GTK 1.x (everyone uses 2.x now.)
168 Changes since 4.17: * Oops, pay no attention to the man behind the curtain.
169 Changes since 4.16: * New hacks, `anemotaxis' and `memscroller'.
170 * Fixed a bad bug that caused `vidwhacker' to never die.
171 * Fixed normals and lighting in `polyhedra'.
172 * Don't reuse the window when changing hacks (to work
173 around bugs in some GL implementations.)
174 * Made `xscreensaver-getimage-file' skip thumbnail-sized
176 * Fixed endian problem in `barcode' on non-x86.
177 * Updates to `webcollage', `apple2', `fuzzyflakes',
178 `atunnel', and `pacman'.
179 * Timing tweaks to `bubble3d', `bouncingcow', `engine',
180 `gltext', `lavalite', `molecule', `spotlight',
181 `sballs', `boxed', `blinkbox', and `circuit'.
182 * Configure updates for Fedora core 2 / xorg 6.7.0.
183 * Compile without warnings under gcc 3.3.3.
184 * I give up: don't blank or lock the screen if we can't
185 get a keyboard grab. In that case, both choices are
187 Changes since 4.15: * New hacks, `polyhedra', `fuzzyflakes', `antinspect',
189 * Minor updates to `webcollage', `bsod', `endgame',
190 `antspotlight', `xmatrix', and `glmatrix'.
191 * Added support for the RANDR (Resize and Rotate)
192 extension to detect when the size of the desktop has
193 been changed while xscreensaver is already running.
194 * Possibly-futile attempt to work around "rdesktop"
196 * Made `xscreensaver-getimage -file' still work even if
197 imageDirectory is unset.
198 * Convert Latin1 to ASCII in `starwars' and `phosphor'
199 (since the GLUT font only has ASCII glyphs.)
200 * Fixed randomization in `noof'.
201 * Added "GetViewPortIsFullOfLies" preference to work
202 around longstanding XFree86 bug #421.
203 * Made `sonar' subnet pinging work properly on bigendian
204 machines (e.g., PPC.)
205 Changes since 4.14: * New hacks, `wormhole', `mismunch', `noof', and
207 * `phosphor' and `apple2' include vt100 emulators now:
208 this means you can do "phosphor -program top", or
209 can use either program as an xterm replacement:
210 "apple2 -text -fast -program 'xemacs -nw'".
211 * `analogtv' (and related) fill the screen better.
212 * The '-gradient' option works in `atlantis' now.
213 * Minor updates to `blinkbox', `queens', `endgame',
214 `glmatrix', `mirrorblob', `blocktube', and `molecule'.
215 * Integrated SuSE's "external passwd helper" support.
216 * Marginally better /tmp handling in various programs.
217 * Updated config defaults for xplanet 1.0.3.
219 Changes since 4.13: * New hacks, `fontglide', `apple2', `xanalogtv', `pong',
220 `gleidescope', `mirrorblob', and `blinkbox'.
221 * New version of `glsnake' (with many more models.)
222 * Another Windows crash in `bsod'; also HVX/GCOS6/TPS6.
223 * New version of `endgame'.
224 * Screen grabbing works on MacOS X.
225 * Various minor fixes.
226 Changes since 4.12: * On Xinerama systems, xscreensaver now runs one hack on
227 each monitor (just like in "real" multi-head mode)
228 instead of running one hack stretching across all the
229 screens. Note that for this to work with any 3rd party
230 screensavers, they must update their "vroot.h" file.
231 * `webcollage' and `vidwhacker' display images using
232 `xscreensaver-getimage' now.
233 * Added `ljlatest' script for use with `starwars' and
235 Changes since 4.11: * New GL hacks, `flipflop', `antspotlight', and
237 * Added VMS to `bsod'.
238 * Compile without warnings in "gcc -pedantic".
239 * Updates to `webcollage' and `queens'.
240 * Fixed a bug that could cause PAM to hang.
241 Changes since 4.10: * New hacks, `hypertorus', `cubestorm', `glknots',
242 `blocktube', and `glmatrix'.
243 * Updates to `cloudlife', `engine', `xmatrix', and
245 * Rewrote `glslideshow': it should work on somewhat
246 wimpier video cards now.
247 * Various portability tweaks.
248 Changes since 4.09: * New hacks, `cloudlife' and `klein'.
249 * Added Apple ][+, HPUX, and OS/390 sessions to BSOD.
250 * Added some Matrix Reloaded text to `xmatrix'.
251 * Updates to `webcollage', `eruption', `jigglypuff',
252 `metaballs', and `endgame'.
253 * Completely ignore the `memoryLimit' setting now,
254 since it was still causing people GL grief.
255 * Various minor fixes.
256 Changes since 4.08: * New hacks, `flyingtoasters', `bouncingcow',
257 `jigglypuff', and `glslideshow'.
258 * More models in `engine'.
259 * Rewrote `xscreensaver-getimage' to remove reliance on
260 external image loaders (xv, chbg, xloadimage, etc.)
261 and to reduce flicker when loading files.
262 * Made `gflux' and `flipscreen3d' be mouse-spinnable.
263 Changes since 4.07: * New hacks, `atunnels' and `piecewise'.
264 * Physics improvement in `fluidballs'.
265 * Various fixes for XDarwin systems (X11 on MacOS X.)
266 * Added -clock option to `barcode'.
267 * Minor fixes to `endgame', `flurry', `flipscreen3d',
269 Changes since 4.06: * New hacks, `flurry', `metaballs', `eruption',
270 `popsquares', and `barcode'.
271 * Minor updates to `maze' for high density mazes.
272 * Added double buffering to `fluidballs' and `whirlygig'.
273 * Bug fixes for running xscreensaver to a remote XFree86
274 display (which nobody would ever do...)
275 * Updated `webcollage' (faster Alta Vista searching.)
276 * Updated `glplanet' so the sun sets in the west.
277 * Updated `sproingies' with smooth, unsegmented surfaces.
278 * Fixed Perl version-sensitivity in
279 `xscreensaver-getimage-file'.
280 * Fixed GTK2 scrolling bug in `xscreensaver-demo'.
281 Changes since 4.05: * New hack, `glblur' (disabled by default, since it
282 requires fast OpenGL texture support.)
283 * New hack, `halftone'.
284 * Updates to `endgame', `queens', `bumps', `glplanet',
285 `engine', and `circuit'.
286 * New version of `menger' that uses far fewer polygons.
287 * Fixed minor bug in `critical' that could cause some
288 bogus X servers to crash.
289 * Better labels in `molecule': the labels now appear to
290 be attached to the atoms, instead of floating in front
292 * Fixed bug that could rarely cause GL hacks to fail to
293 double-buffer (causing intermittent flickering.)
294 * Fixed a relative-URL-parsing bug in `webcollage'.
295 * Fixed a bug that (sometimes) caused the window manager
296 close box to kill `xscreensaver-demo' with a crash
297 instead of a graceful exit.
298 * Updated xscreensaver.pam to the Red Hat 7.3 way.
299 * More Gnome2-related configure crap.
300 * Updated to latest `config.guess' and `config.sub'.
301 * Fixed occasional core dump in `distort'.
302 * Added a Linux fsck failure and kernel panic to `bsod'.
303 * Added MacOS X kernel panic to `bsod'.
304 * Fixed a bug in `bsod' (all bsod bugs are ironic.)
305 * Fixed a bug that caused `xscreensaver-gl-helper' to
306 print a nonsense visual ID with some versions of
307 `printf': this could cause GL programs to display
308 incorrectly (e.g., flickery.)
309 Changes since 4.04: * More `configure' tweaks to try and get things working
310 on systems that both Gtk 1.x and 2.x installed.
311 * New hack, `endgame'.
312 * Minor updates to `gltext'.
313 Changes since 4.03: * Support for GTK 2.x / GNOME 2.x.
314 * The `configure' script will now use `pkg-config' if
315 you have it, in preference to `gtk-config', etc.
316 * New hacks, `lavalite', `queens', and `anemone'.
317 * Minor updates to `spheremonics', `gltext', `xmatrix'.
318 * You can use the mouse to manually spin most of the GL
319 hacks now (when they are displaying in a window.)
320 * Fixed a bug in `webcollage' (due to recent Alta Vista
321 url changes) that was causing it to try and load
322 incorrect image URLs.
323 * Made `xscreensaver-getimage' use gdk_pixbuf if it is
324 available: this means that those hacks that load images
325 will no longer rely on "xv", "xloadimage", etc. This
326 will close a race condition that could sometimes cause
327 your desktop background to be changed; and also makes
328 it possible for those programs to operate on image
329 files when running in windowed mode.
330 * `webcollage' can now be used in conjunction with
331 `driftnet' to display images snooped from your local
332 ethernet instead of obtained from search engines.
333 * Added man pages for all the hacks that didn't have
335 Changes since 4.02: * New hack, `spheremonics'.
336 * Minor updates to `webcollage', `cage', `moebius',
337 `morph3d', `boxed', `circuit', and `helix'.
338 * `pulsar' and `extrusion' can now load texture JPEGs.
339 * `rubik' now does non-square cubes.
340 * `fluidballs' now does various sizes of balls.
341 * `menger' and `sierpinski3d' now also show polygon
343 * `molecule' displays real subscripts in the formulae.
344 * GTK internationalization/localization support.
345 * Better detection of the various versions of libxml.
346 * Upgraded to autoconf 2.53 (from 2.13.)
347 Changes since 4.01: * Plugged a few minor leaks in `xscreensaver' and
349 * New hacks, `cubenetic' and `fluidballs'.
351 * Fixed sphere projection error in `glplanet'; installed
352 a better image of earth.
353 * Added Win2K and MacOS 1 crashes to `bsod'.
354 * Put back previous (better) version of `forest' that
355 was accidentially downgraded in the last release.
356 * New version of `bumps'.
357 * Made FPS computation in GL hacks more efficient: it
358 will influence the results less, thus resulting in
359 higher (but more accurate) reported frame rates.
360 Changes since 4.00: * New hacks: `twang', `glsnake', `boxed', `sballs',
362 * New hacks `apollonian', `euler2d', `juggle',
363 `polyominoes' and `thornbird', from xlockmore.
364 * Merged recent xlockmore changes into `ant', `braid',
365 `demon', `discrete', `drift', `fadeplot', `forest',
366 `grav', `hopalong', `ifs', `laser', `lightning',
367 `lisa', `lissie', `loop', `mountain', `penrose',
368 `rotor', `sierpinski', `slip', `sphere', `spiral',
369 `strange', and `vines'.
370 * Fixed the `gltext' bug that sometimes caused
371 horizontal lines to vanish again. This time for sure.
372 * Sped up `webcollage' by adding a C helper program to
373 replace the PPM pipeline. It also pastes images
374 semi-transparently now.
375 * Added support for the gdk_pixbuf library: if this lib
376 is available, then `blitspin', `xflame', and `flag'
377 can load GIF, JPEG, and PNG images in addition to XPM
379 * Fixed a rare race condition where the desktop-grabbing
380 hacks could sometimes leave the screen wedged, if the
381 user moved the mouse exactly when they were grabbing
382 the screen image (it would un-wedge the next time the
383 saver timed out or was activated.)
384 * Fixed incorrect colors in the screen-grabbing GL hacks
385 (`gflux' and `flipscreen3d'.)
386 * Made SIGHUP restart the daemon process (though using
387 `xscreensaver-command -restart' is still the preferred
389 * Tweaks to `xspirograph'.
390 * Minor configure and portability tweaks.
391 Changes since 3.34: * Redesigned `xscreensaver-demo' GUI: it now includes
392 small-preview and per-hack configuration dialogs.
393 * Added three new modes of operation: `One Screen Saver',
394 `Blank Screen', and `Don't Blank' (in addition to the
395 historical `Random Screen Saver').
396 * Configure now defaults to installing the hacks in
397 <prefix>/lib/xscreensaver/ instead of <prefix>/bin/.
398 (Most distros already did it this way.)
399 * New GL hacks, `menger', `engine', `flipscreen3d'.
400 * Made `sierpinski3d' be more colorful.
401 * New versions of `xmatrix' and `nerverot'.
402 * Fixed a bug in `starwars' that made the font be drawn
403 with thin lines in -root mode.
404 * Fixed a bad colormap bug in `crystal' that could make
405 *subsequent* hacks malfunction!
406 * Made `gflux' able to grab screen images (`-mode grab').
407 * Updated `webcollage' for recent search engine changes.
408 * Removed most command-line options to `xscreensaver':
409 just edit the ~/.xscreensaver file instead.
410 * Improved behavior on multi-screen and Xinerama systems:
411 the mouse now stays on the screen where the user left
412 it, and the password and splash dialogs always appear
413 on the screen that has the mouse.
414 * Made the splash dialog use more Gtk-like colors;
415 made it have only two buttons, "Settings" and "Help".
416 * Made `sonar' understand `.ssh/known_hosts2' format
417 files, and be better about stripping out illegal
419 Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
420 some versions of the GL libraries (appear to) allocate
421 hundreds of megs for every GL program, so `memoryLimit'
422 was causing GL programs to malfunction or crash on
424 * Improved fading on TrueColor XFree86 4.1.x systems.
425 * New GL hack, `circuit'.
426 * Added `fuzz' mode to `decayscreen'.
427 * New version of `whirlygig'.
428 * Added links to `xplanet' and `sphereEversion'.
429 * Fixed rare race condition that could make `sonar' hang.
430 * Fixed potential crash in `speedmine'.
431 * Made `xscreensaver-demo' not crash when imageDirectory
432 was set to a non-existent directory.
433 * Made `xscreensaver-getimage-video' invoke XawTV's
434 `streamer' program better.
435 * Made `phosphor' and `starwars' deal with CR, LF,
436 or CRLF line endings.
437 * Changes for Cygwin compilation environments.
438 * Made `sonar' compile on systems that can't ping.
439 * Configure changes for HPUX 10.20.
440 * Made PAM code work on Red Had 4.2 systems.
441 * Made `xscreensaver-command -deactivate' work when the
442 saver is not active: what that does is reset the idle
443 timer, as if keyboard input had been detected. This
444 was added for the benefit of people writing DVD-playing
445 software: they can now prevent the screensaver from
446 kicking in by sending a -deactivate message once a
447 minute while the movie is playing and not paused.
448 * Various minor portability tweaks.
449 Changes since 3.32: * New hacks, `speedmine' and `whirlygig'.
450 * Sped up `pyro', made the explosions look a bit better.
451 * Added better stars to `glplanet' and `starwars'.
452 * Many internal changes to `webcollage'.
453 * Some new options to `attraction'.
454 * Minor fix to `noseguy' to avoid un-erased pixels.
455 * Rewrote the screen-eraser effects so that they complete
456 in the same amount of time regardless of how slow
457 your X server is (some of them were glacial on servers
459 * Fixed a potential free memory reference that could
460 sometimes cause a crash at startup.
461 * Possibly fixed a problem that could cause the daemon
462 to crash with an X error. I was never able to
463 reproduce this problem, but I think I might have
464 figured out what caused it.
465 * Worked around a problem that caused PAM authentication
466 to fail on some Red Hat 7.x systems.
467 * Added a `memoryLimit' parameter that controls the
468 amount of memory a graphics hack may allocate: if they
469 try to allocate more than this, malloc() will fail
470 (and they will exit or (safely) crash, rather than
471 hogging memory.) Default is 50M.
472 * Made `gnome-help-browser' be the default way to display
473 man pages in `xscreensaver-demo', if running on a
475 Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
476 now operate on randomly chosen image files from disk,
477 or on frames captured from the system's video input,
478 instead of (or in addition to) manipulating images of
480 * Rewrote `vidwhacker' to use the new image-grabbing
482 * Made fading work on TrueColor XFree86 4.x systems.
483 * Fixed a subtle rendering bug in `atlantis' (the fish
485 * Made `atlantis' have a texture simulating light
486 reflections from the surface of the ocean.
487 * Fixed up label placement in `molecule'.
488 * Better color bars in `xteevee'.
489 * Made `install-strip' not try to strip scripts.
490 Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
491 the documentation to reflect the fact that all your
492 DPMS settings are now belong to xscreensaver.
493 * Fixed the `xscreensaver.spec' file so that `--force'
495 * New versions of `rotzoomer' and `nerverot'.
496 * Fixed an OSF/1 compilation problem in `molecule'.
497 Changes since 3.29: * New hacks, `molecule', `dangerball', and `rotzoomer'.
498 * New version of `gflux'.
499 * Made `gltext' able to display the current time.
500 * Fixed a floating-point-precision problem in `gltext'
501 that sometimes caused horizontal lines to vanish.
502 * Removed the `-window-id' option from the hacks:
503 it never worked right, and was unnecessary.
504 * Made the `starwars' hack use thicker lines, antialias
505 the text, and fade out at the far edge instead of just
507 * Fixed an SHM segment leak in `moire'.
508 Changes since 3.28: * Better rendering of the new logo.
509 * New hack, `gltext'.
510 * Added `-planetary' option to `gears', to draw a
511 different kind of gear system.
512 * Made motion and rotation be smoother in `gears',
513 `glplanet', `moebius', `rubik', and `sierpinski3d'.
514 * Improved coloration in `sierpinski3d'.
515 * Made the GL hacks react to window size changes.
516 * Made most of the GL hacks take a -fps option (like
517 `pulsar' did), so you can use them to benchmark your
519 * Fixed the previous fix to `sonar'.
520 * Minor fix to `nerverot'.
521 Made sonar able to ping hosts on DEC OSF1.
522 * Eliminated a bogus "didn't get enough colors" warning
523 in some of the hacks.
524 Changes since 3.27: * New logo for xscreensaver!
525 * New hacks, `starwars' and `stonerview'.
526 * Made the motion of the bouncing ball in `stairs' be a
528 * Made newly-added screenhacks be added to .xscreensaver
529 automatically: if there are hacks in the app-defaults
530 file that are not also in ~/.xscreensaver, they will
531 be added to the end of the list.
532 * Redid the `Screensaver Options' part of the control
533 panel; xscreensaver now lets you configure your DPMS
535 * Fixed some Makefile problems with non-GL builds.
536 * Fixed detection of MesaGL for version 3.3.
537 * Better workaround to Red Hat 7.0's broken gcc.
538 * Added Sparc Solaris kernel panic to `bsod'.
539 Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
540 * Fixed a free-memory-reference bug in `sonar'.
541 * Better error handling when there are no suitable GL
543 * Added diagnostic dialog when xscreensaver-demo is
544 unable to launch xscreensaver (e.g., when running as
546 * Fixed a bug that caused screenhack argument changes
547 to be ignored when xscreensaver-demo was running as
548 root (if "root" and "nobody" have different home
550 * Made the programs default to ":0" if $DISPLAY is unset.
551 * Made the `-verbose' output include information about
552 which server extensions were supported at compile time.
553 * Worked around Red Hat 7.0's broken gcc 2.96.
554 * Updated default delays on the GL hacks to look better
555 on machines with super-fast 3D hardware.
556 * Install `screensaver-properties-capplet' to work around
557 the usual egregious GNOME lossage.
558 Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
559 xscreensaver-demo (Gtk version only.)
560 * New hacks `hyperball', `xrayswarm', and `gflux'.
561 * New versions of `nerverot', `galaxy', and `hypercube'.
562 * Small fixes to `phosphor', `shadebobs', `xflame',
564 * Added external helper program `xscreensaver-gl-helper'
565 to figure out which X visual to use for OpenGL
567 * Configure updates for XFree86 4.0, and for BSD.
568 * Made it be more tolerant of bogus /etc/group files.
569 * When installing the PAM config file, first try to just
570 copy an existing "xdm" or "login" config file, so that
571 xscreensaver does authentication in the same way as the
573 Changes since 3.24: * New hack, `nerverot'.
574 * Added BSD kernel panic to `bsod'.
575 * New version of `shadebobs'.
576 * New version of `petri'.
577 * Updated `webcollage' to handle recent Altavista URL
578 format changes; made it search the AP photo gallery.
579 * Revamped command-line options of `sonar' and made it
580 properly handle subnets.
581 * The `bubbles' hack can now trickle up or down the
583 * The `xsublim' hack can now read its text from programs.
584 * Support for GLE version 3 in `extrusion'.
585 * Fixed compilation problems in `maze'.
586 * Fixed a rare crash in `flow'.
587 * Fixes for minor installation problems.
588 Changes since 3.23: * Added `-ignorant' option to `maze' hack.
589 * Updates to `critical', `bsod', `xflame', and `flow'.
590 * Added support for Kerberos 5 (via its Kerberos 4
591 compatibility layer.)
592 * Fixed a bad leak in `xteevee'.
593 * Updated `webcollage' to handle recent Altavista URL
595 * Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
596 since they were confusing people: all changes are now
598 * Made xscreensaver-demo install itself into the Gnome
600 Changes since 3.22: * Fixed some misplaced text fields in the Motif version
601 of xscreensaver-demo; fixed a crash in the Gtk version
602 that would happen if the programs list was empty.
603 * Fixed a recently-introduced bug in `pulsar'.
604 * Made `sierpinski3d' use solid tetrahedrons instead of
606 * Added `-trace' option to `xmatrix'.
607 * Added new hacks `xteevee' and `xspirograph'.
608 Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
609 * Rewrote the Motif version of xscreensaver-demo to
610 match the new Gtk version.
611 * The Athena toolkit is no longer supported.
612 Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
613 * Fixed a few visual selection bugs. I think the proper
614 GL visual should be used with nVidia systems now.
615 * Made the Makefiles obey $install_prefix.
616 * Made the `xscreensaver.spec' file able to generate both
617 GL and non-GL packages simultaneously.
618 Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
619 * Made `xscreensaver-command -exit' be silent when no
620 screen saver was running (instead of complaining.)
621 * Made `webcollage' and `vidwhacker' use `xloadimage'
622 when available (in addition to `xli' and `xv'.)
623 * Improved memory usage in `petri' and gave it a hard
624 cap on how much memory it can allocate.
625 * Added `-watch' option to `xscreensaver-command'.
626 * Made `xscreensaver-demo' come up with the
627 most-recently-run hack selected by default.
628 * Rewrote the Gtk version of `xscreensaver-demo'.
629 It's a lot easier to use now.
630 * Extended the format of the programs list in the
631 .xscreensaver file, for the benefit of the new
632 capabilities of `xscreensaver-demo'.
633 NOTE: you might want to delete your ~/.xscreensaver
634 file and allow it to be re-created! The old one
635 should still work, but xscreensaver-demo won't be as
637 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
638 * New hack, `extrusion'.
639 * Some of the web sites that `webcollage' was using as
640 its sources changed formats; tweaked it to understand
642 * Added typeahead in the password dialog: if the screen
643 is locked, and you unlock it by typing a character,
644 that key will be automatically inserted in the
645 password dialog (unless it is Return, Enter, Space,
646 or a non-printing key like Shift.)
647 * Made `xmatrix' take a `-small' option, since some
648 folks with tiny screens prefer a smaller font.
649 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
650 * Added `ccurve', `blaster', and `bumps' hacks.
651 * Replaced `forest' hack with a rewritten version.
652 * Worked around a Xinerama server bug.
653 * Fixed a bug I introduced in 3.10 that caused some
654 hacks to print out superfluous warnings about not
655 having gotten enough colors.
656 * Made `sproingies' obey the `-delay' option.
657 * Fixed a portability bug in `shadebobs'.
658 * Made `webcollage' and `vidwhacker' use `xli' in
659 preference to `xv', if it is available.
660 * Added a new source of images to `webcollage'.
661 * If running under KDE, xscreensaver will add itself to
662 KDE's list of screensavers (via xscreensaver.kss.)
663 * Improved detection of GL libraries.
664 * Made the password dialog include the date and time.
665 Changes since 3.16: * New version of `webcollage' -- deals better with
666 corrupted images, and can use an http proxy.
667 * New hack, `xsublim' (run it in the background,
668 rather than adding it to the programs list.)
669 * The xscreensaver daemon was leaking a file descriptor
670 each time you edited your .xscreensaver file. Fixed.
671 Changes since 3.15: * New version of `shadebobs'.
672 * Improved image selection in `webcollage', and sped it
674 * Made configure find the right version of perl.
675 * Rewrote the CGI part of `webcollage'.
676 * `make clean' was deleting some things it shouldn't.
677 * Fixed a typo in the default programs list.
678 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
679 * Added a `-stdout' arg to `vidwhacker' so that it can
680 be used in a pipeline.
681 * Made `petri' use less memory.
682 Changes since 3.13: * Various improvements to the Gtk port.
683 * Turned off PAM by default on Solaris, since PAM seems
684 generally to be misconfigured out-of-the-box.
685 * Made the `--without-gtk' configure option work.
686 * Made configure check the Gtk version number, since it
688 * Fixed a bug in the code that attempted to prevent
689 changes of screen resolution while the screen is
691 * Fixed a race condition in `xscreensaver-demo' that
692 could cause an X error at startup.
693 * Added `-transparent' option to `deluxe'.
694 * Added `petri' hack.
695 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
696 * Made it possible to build Motif, Gtk, and Athena
697 versions of `xscreensaver-demo' in the same directory
698 without reconfiguring.
699 * Made `xscreensaver-demo' chase symlinks before writing
700 the .xscreensaver file, so that if .xscreensaver is
701 itself a symlink, the underlying file will be replaced
703 * Some Makefile and configure tweaks for Solaris and
705 * Made it possible to set the fire color in `xflame'.
706 * Made transparency work in TrueColor (for `goop' and
708 * Fixed a multi-head bug introduced by the virtual
710 Changes since 3.11: * Made it so that you can't scroll the screen while the
711 lock dialog is up (with XFree86 virtual viewports.)
712 * Fixed a bug in `flag' that caused bob's chin to get cut
713 off after a few iterations.
714 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
715 less like a computer screen and more like the
716 typewritten paper it's supposed to be.
717 * New version of `pulsar'.
718 * Fixed Solaris compilation problem in `phosphor'.
719 * Made xscreensaver notice XFree86's virtual root window
720 hack, so that if the X server's root window is larger
721 than the monitor's displayable resolution, the screen
722 saver will limit itself to the area that actually
723 appears on the screen.
724 * Made the xscreensaver daemon do a better job of
725 picking the visual class that should be used for GL
726 programs. Less user intervention should be needed
727 now: you can use the logical visual name `GL' instead
728 of having to figure out by hand which one to use.
729 * Oops, the visual was defaulting to "best" instead of
730 "default", because the .xscreensaver file was not being
731 loaded quite early enough.
732 * Made configure figure out how to build icmp ping
733 support into the `sonar' hack automatically.
734 * Made warnings about not being able to read shadow
735 passwords not be printed if compiled with PAM support.
736 * Improved PAM startup diagnostics.
737 * Worked around the Solaris PAM bug that was causing
738 crashes there, so now PAM is turned on by default.
739 * Made configure detect the number of arguments that
740 pam_strerror() takes, since on Linux, this apparently
741 changed between 2.0 and 2.2, sigh.
742 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
743 as well as "keyboard".
744 * Made xscreensaver notice when there has been a sudden
745 large jump in wall-clock time, and if so, lock right
746 away, instead of waiting for "lockTimeout" to expire
747 first. (Laptops need this for safer recovery from
749 * Added `-throttle' option to `xscreensaver-command'.
750 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
751 * Fixed a bug in the color allocator that sometimes
752 caused `starfish' to fall back to monochrome.
753 * Reduced the amount of code that runs before root
754 privileges are disavowed: "normal" and "shadow"
755 passwords now do some initialization as root, but the
756 PAM and Kerberos authorization schemes will be
757 initialized while running as "nobody". Supposedly
758 this closes a potential security hole when using
760 * Added some more sanity checking to configure.
761 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
762 `spotlight', and `critical' hacks.
763 * Added some new modes to `decayscreen'.
764 * Made `deluxe' work in monochrome.
765 * Generalized usage of the Double-Buffer server extension
766 in several hacks (`compass', `deluxe', `interference',
767 `kumppa', and `moire2'.)
768 * Fixed another visual-depth problem in `rd-bomb'.
769 * The screen saver will now defer blanking if neither
770 the keyboard nor the mouse could be grabbed. Instead,
771 it will just try again in a few minutes. This fixes
772 a bad interaction between xscreensaver and programs
773 like VMware that hold the mouse and keyboard grabbed
775 * Added a new erase mode (expanding spiral.)
776 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
777 * Added `penetrate' and `deluxe' hacks.
778 * When linking against Motif 2.x, also link against XPM.
779 * Added support for using /proc/interrupts for idle
780 detection on Linux. Now xscreensaver shouldn't kick
781 in when the user is active on a non-X virtual console.
782 * Upgraded to autoconf 2.13.
783 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
784 in properly; check for _Xsetlocale in -lXintl.)
785 * Portability fixes for sonar.c.
786 * Fixed a compilation problem when you have GL but don't
788 * Made configure notice when MesaGL requires -lpthread.
789 * Made `flame' ignore SIGFPE (not sure if this is the
790 right fix; it seems only to be needed on FreeBSD.)
791 * Kludged `rd-bomb' work on visuals that are of depth 24
792 but that *do not* support pixmaps of depth 32.
793 * Fixed `halo' to work properly in TrueColor.
794 * Changed `xscreensaver.spec' to install the hacks in
795 /usr/X11R6/lib/xscreensaver/ by default, since that's
796 where recent Red Hat distributions put them.
798 * Updated versions of `crystal', `hopalong', and `flow'
800 * Imported `demon' and `loop' modes from xlockmore.
801 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
802 it was always installing a colormap if the
803 `installColormap' preference was set, meaning that
804 `xearth', `xv' and friends were using the wrong
805 colors on 8-bit systems.
806 * Turned off HAVE_PING in `sonar', since it compiles
807 on some Linux systems, but not others of similar
809 Changes since 3.04: * Fixed an off-by-1 in `distort'.
810 * Added `sonar' hack.
811 * New version of `glplanet' (with stars.)
812 * Made all hacks exit when you type `q' or `ESC' at them,
813 and made them obey the WM_DELETE_WINDOW ClientMessage.
814 * Fixed a nonfatal buffer overrun in lament (note:
815 lament still doesn't work with MesaGL 3.0: it dies in
816 lambda_textured_triangle1(), which is Mesa's bug, not
818 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
819 for other folks to generate RPMs.
820 * Made the password code work on HPUX in the situation
821 where: ``enhanced security'' is available; but not
822 used; but the user typed a password more than 8
823 characters long anyway. FTSOHPUX.
824 Changes since 3.02: * Made locking work when passwd aging is enabled.
825 * Added support for PAM (Pluggable Authentication
826 Modules.) It is still turned off by default, though,
827 since it doesn't seem to work on Solaris 2.6, and has
828 been behaving erratically on Red Hat 5.1.
829 * Made each possible authentication method be tried in
830 turn until one succeeds; this means that Kerberos is
831 being used, we will first check Kerberos, and if that
832 fails, will then consult the local password file.
834 * Save and restore the bits under the passwd dialog,
835 to avoid leaving a black rectangle behind when
836 unlocking is cancelled.
837 Changes since 3.01: * Not everyone has sys/select.h, sigh...
838 Changes since 3.00: * Some fixes to `reflect'.
840 * Made it log unsuccessful attempts to unlock the screen
842 * Fixed a bug where `xscreensaver-demo' could be seeing
843 a different programs list than `xscreensaver' did.
844 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
845 or Athena: demo-mode and the preferences panel are no
846 longer built in to the daemon, but are now handled by
847 an external program, `xscreensaver-demo'.
848 (I decided that this, along with the recent addition
849 of the `.xscreensaver' config file, justified bumping
850 the version number to 3.00, since this is a fairly
851 major architectural change.)
852 * Lines in the `*programs' resource may now begin with
853 the character "-", meaning "don't run this hack."
854 In this way, it's possible to disable a hack without
855 throwing away the information about it (making it
856 easier to change your mind later.) Eventually the
857 preferences/demo mode GUI should represent this as a
858 checkbox or something.
859 * Fixed a short race condition where it was possible for
860 xscreensaver to die with a BadWindow error if it was
861 blanking the screen just as another window was being
863 * Made it possible to disable specific modes in `bsod'.
864 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
865 many valves. Made the viewpoint in `pipes' be selected
866 randomly instead of always being -10 degrees.
867 * Fixed a bug in the XSHM code, in the case where the
868 server supports the XSHM extension but is not the same
869 machine as the client.
870 * Made `rd-bomb' default to taking up the whole screen.
871 * Made it not try to do fading/unfading if no PseudoColor
873 * Initial attempt at supporting VT-locking (doesn't work
875 * Eliminated the `captureStdout' resource; now
876 `captureStderr' controls both streams.
877 * Added `-capture-stderr' and `-no-capture-stderr'
878 command-line arguments.
879 * Added `glplanet' hack.
880 * When a hack is selected with `xscreensaver-command
881 -select', that hack will be used until further notice
882 (until the saver turns off, or another activation
884 Changes since 2.32: * Made `xscreensaver-command' print error messages:
885 the xscreensaver daemon now responds to ClientMessage
886 events by writing a response message on a window
887 property, instead of just writing to its stderr.
888 * Made the ~/.xscreensaver file be automatically reloaded
889 when the file date changes.
890 * The password dialog and splash screen no longer depend
891 on Motif or Athena. This should clear up a number of
892 focus problems, and is the first step on the path
893 toward moving all of the Motif/Athena/whatever code
894 out of the xscreensaver daemon, and into external
896 * Don't complain about LessTif 0.86 any more, since the
897 new password dialog makes that problem go away.
898 * Configure tweaks for Irix 6.5, SunOS 5.something.
899 * New `-reflect' option to `distort'.
900 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
901 so that the Preferences panel can save its settings.
902 * New version of `rubik'.
903 * Added `-select N' argument to `xscreensaver-command'.
904 * Oops, left out some of the `bubbles3d' files...
905 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
906 * Made configure warn against MesaGL 2.6.
907 * Fixed X error at startup when using non-default visual.
908 * New version of `crystal', `ant', and `atlantis' from
910 * New hack, `bubble3d'.
911 * Added some new modes to `bsod'.
912 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
913 to be after Motif instead of before (Lesstif on Irix
915 Changes since 2.28: * Work around a bash bug in configure.
916 * Tweaked HPUX paths again. FTSOHPUX.
917 * Made configure recommend against LessTif 0.86, due
918 to a bug in that version that causes a security hole
919 in the screen locking code. LessTif 0.87 will fix it.
920 * Made all of the `--with' options to `configure' accept
921 a directory option as well (so that --with-motif=/FOO
922 will add -I/FOO/include -L/FOO/lib). I believe this is
923 the Configure Party Line of how do to such things.
924 * Fixed a bug where the mouse was left un-grabbed
925 after the first time the graphics hack was changed
926 (simplified all of the mouse-grabbing logic.)
927 * Maybe possibly perhaps made `vidwhacker' really not
928 leave stray xv windows around. This time for sure.
929 * Added a new erase mode (random dots fizzling out.)
930 * Added `-prefs' argument to `xscreensaver-command',
931 that brings up the Preferences dialog directly (it
932 seems that nobody ever noticed the `Preferences' button
933 on the Demo Mode dialog, maybe this will help.)
934 * Added a splash screen. Turn it off with *splash:false.
935 Changes since 2.27: * Better macsbug text in `bsod'.
936 * New version of `distort' with many new modes.
937 * Plugged a leak in `coral'.
938 * Tweaked configure for HPUX.
939 * Removed some compiler warnings.
940 * More consistent usage of stderr versus stdout.
941 * More diagnostics should an X error occur.
942 * Fixed a possible crash in SGI-specific unfading code.
943 Changes since 2.26: * Improved version of `distort'.
944 * Made `lament' compile against OpenGL 1.0 (though it
945 still requires 1.1 to work properly.)
946 * Updated my email address and home page.
947 Changes since 2.24: * Improved motion in `rd-bomb'.
948 * Added XSHM (shared memory extension) support to the
949 `distort', `interference', `moire', `rd-bomb', and
950 `swirl' hacks, which speeds them up a bit.
951 * Added `lament' hack.
952 Changes since 2.23: * Tweaked the order of the -L options again.
953 * Cleaned up configure's `--help' message.
954 * Added `kumppa' hack.
955 * Smarter maze-solving algorithm in `maze'.
956 * Took `xlyap' out of the default list of hacks, since
957 it's just incredibly buggy (and slow.) Maybe someday
958 someone will fix it...
959 * Added `distort' hack, but didn't add it to the default
960 list (yet) because it's still too slow.
961 * Made the Athena demo dialog look more like the Motif
962 version; it has a text-entry field now, too.
963 * Made the Athena password dialog echo asterisks, like
964 Motif does, instead of using a flyspeck font.
965 * Some random configure tweaks.
966 * Added a `timestamp' resource that makes the `-verbose'
967 messages include the time at which they were printed.
968 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
969 let the user's "*background" resource show through.
970 Fixed it in a different way.
971 Changes since 2.21: * Added support for the DPMS server extension (Display
972 Power Management System.)
973 * Made configure advertize the `--enable-subdir' option a
974 little more, since that seemed to cause some people
975 stress. Also, made that directory be built into the
976 xscreensaver executable, as a hardcoded prefix to
977 $PATH. (Might help, shouldn't hurt.)
978 * Made configure prefer the two-arg gettimeofday to the
979 one-arg version, since AIX doesn't have any prototypes.
980 * Made it work with Xaw3d (the 3D Athena library.)
981 * Made `make install' create directories as necessary.
982 * New version of lmorph from Sverre.
983 * Added `crystal' and `discreet' hacks from xlockmore.
984 * Added a new mode to `bsod'.
985 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
986 (It now describes the two states as "screen blanked
987 since..." and "screen non-blanked since..." instead of
988 "active since..." and "inactive since..." which a lot
989 of people interpreted as meaning the opposite of what
991 * Improved some error messages, in the hopes of making
992 the distinction between the xscreensaver and
993 xscreensaver-command programs more obvious.
994 * Rewrote (and reorganized) parts of the xscreensaver and
995 xscreensaver-command manual pages.
996 * Renamed xscreensaver's `-lock' command-line option to
997 be `-lock-mode', to avoid confusion with the `-lock'
998 option to xscreensaver-command, which does a totally
1000 * Removed xscreensaver's `-demo' command-line option for
1001 a similar reason; use `xscreensaver-command -demo'
1003 * Disabled SGI's ``scheme'' nonsense in a better way than
1004 fully-qualifying the background colors in every single
1006 * Fixed some other minor cosmetic problems when *sgiMode
1008 * Fixed an X error in `bsod -root' (how ironic...)
1009 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
1010 grabbed properly (meaning the window manager menu could
1011 pop up over the demo-mode display.)
1012 * Fixed a bug that made the stderr output sometimes get
1014 * Fixed a bug that made the demo-mode scrollbar move too
1016 * Protected against a possible buffer overflow.
1017 * Made `vidwhacker' not leave stray xv windows around.
1018 * New version of `ant' so that Bagley doesn't calve.
1019 * Make configure on AIX get XShm from the right library.
1020 Changes since 2.18: * One file was missing from the tar file. Fixed.
1021 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
1022 * Added `epicycle' hack.
1023 * Added `interference' hack.
1024 * Added `truchet' hack.
1025 * Added `bsod' hack.
1026 * Added some new modes to `vidwhacker'.
1027 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
1028 can draw on arbitrary externally-provided windows.
1029 * Synched with xlockmore 4.11a01.
1030 * Added `flow' hack.
1031 * Added `atlantis' GL hack.
1032 * Renamed `puzzle' hack to `jigsaw', since xlock already
1033 had a different mode called `puzzle'.
1034 * Made it self-configure properly when Motif 2.1.0 is
1035 being used (requires -lXp now, sigh...)
1036 Changes since 2.15: * Made `flag' able to do XPM images.
1037 * New look for the xscreensaver logo (`xroger').
1038 * Fixed compilation error on Suns with adjunct passwords.
1039 * Got multi-architecture builds working again.
1040 * Some configure tweaks for building on HPUX and Solaris.
1041 * Fixed bug in decayscreen.
1042 * Fixed typo in passwd.c.
1043 * Made `cynosure' not die when colormap is full.
1044 Changes since 2.14: * Added `cynosure' hack.
1045 * Added `moire2' hack.
1046 * Tweaked `erase.c' some more.
1047 * Made unfading a bit smoother.
1048 * Added `vidwhacker' hack (not installed by default.)
1049 * Added `stairs' hack.
1050 * Split `escher' into `cage' and `moebius', as per
1052 * Changed subprocess handling to use sigaction() instead
1053 of signal() if it's available (this is necessary for
1054 SCO but should work fine on other systems too.)
1055 * Various other tweaks.
1056 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
1057 * Put in some kludges to work around a LessTif bug.
1058 * XScreenSaver is known to work with LessTif 0.82 now.
1059 * Made fading work on high-end SGI video hardware.
1060 * Fixed another SGI-specific bug in screen grabbing;
1061 will the madness never cease?
1062 * Fixed another crash in `xlyap'.
1063 Changes since 2.12: * Made `decayscreen' do directions other than down.
1064 * Improved `puzzle'.
1065 * Fixed a crash in `xlyap'.
1066 * Added CDE info to the man page, removed `cde.txt'.
1067 * Configure tweaks for Zippy.
1068 * Turned off the signal handling in `bubbles' because
1069 it was sometimes failing to die.
1070 * Added `hacks/xscreensaver-sgigl.c' to make it possible
1071 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
1072 with xscreensaver. Finally!
1073 * Fixed a buffer overrun in the locking code that some
1074 wily, malicious cracker must have slipped in.
1075 * Disabled Motif drag-and-drool in the dialog box
1076 buttons, since it's broken in some old versions of
1078 Changes since 2.11: * Added `README.debugging'.
1079 * Added `puzzle' hack.
1080 * Added `xlyap' hack.
1081 * Added `default-n' as a visual name, so that one can
1082 have -install on by default, but turn it off for
1083 certain poorly-behaved hacks (like xv.)
1084 * Added support for grabbing frames of external video
1085 (on SGI) to the screen-grabbing hacks (decayscreen,
1086 slidescreen, slip, blitspin, and puzzle.)
1087 * Improved look of tiles in `slidescreen'; fixed its
1088 color allocation problem.
1089 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
1090 * Added `lissie', `mountain', `triangle', `worm',
1091 `rotor', and `ant' from xlockmore.
1092 * Updated `sierpinski', `galaxy', and `lisa'.
1093 * Thickened the lines in `braid' and `lmorph'.
1094 * Updated VMS makefiles.
1095 * Renamed `fract' to `vines'.
1096 * Added `xjack' hack.
1097 * Made a few more hacks use erase.c, and added a few
1099 * Fixed compilation problem with Sun's version of OpenGL.
1100 * Added ability to use sigaction() instead of signal()
1101 to work around a SCO kernel bug.
1102 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
1103 * Configure tweaks for *BSD.
1104 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
1105 * New version of `maze' with some new algorithms.
1106 * New colorized version of `rocks'.
1107 * Fixed a bug in qix on 64-bit machines.
1108 * Fixed a bug in the -time option.
1109 * Fixed a bug in configure related to LessTif.
1110 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
1111 * Made multi-architecture ($VPATH) builds work properly.
1112 * Merged new GL stuff from xlockmore (rubik, morph3d.)
1113 * Fixed intermittent crashes in `imsmap' and `munch'.
1114 * Added `fadeplot' hack from xlockmore.
1115 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
1116 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
1117 configure to detect the extra-random -Xss library.
1118 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
1119 * Fixed low-color behavior of `goop', `pyro', `starfish',
1120 `greynetic', `flame', `halo', and `moire'.
1121 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
1122 * Added `munch' hack.
1123 * Added basic dependencies to the Makefile.in files.
1124 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
1125 * Made the yow/fortune program be a configure option.
1126 * Various configure tweaks.
1127 Changes since 2.00: * Added `goop' and `starfish' hacks.
1128 * Added colomap cycling to `halo'.
1129 * Made `attraction' use the new colormap allocator.
1130 * Added better $PATH diagnostics.
1131 * There was a bug in frand! Color selection should be
1133 Changes since 1.34: * Converted to use `configure' instead of `imake'.
1134 * ANSI C is now required.
1135 * Added Kerberos locking support, from Nat Lanza.
1136 * Made the stderr text use overlay planes, if possible.
1137 * Reworked the xlockmore compatibility stuff again.
1138 * Added `gears', `superquadrics', `escher', `pipes',
1139 and `sproingies' hacks (depend on OpenGL.)
1140 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
1141 Changes since 1.32: * Made it work with multi-headed displays.
1142 * Generalized sub-process management (Unix sucks!)
1143 * Added interactive mouse frobbing to Julia.
1144 * Added (untested) support for HPUX shadow passwords.
1145 * Made normal non-shadow passwords be checked if the
1146 shadow passwords aren't accessible for some reason.
1147 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
1148 made it possible to specify the desired visual on a
1150 * Cleaned up / restructured the driver: no more globals.
1151 * Made the Motif and Athena dialogs share more code.
1152 * Probably fixed some Athena colormap-installation bugs.
1153 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
1154 * Fixed divide-by-zero in bright random colormaps.
1155 * Added an improved version of xlock's `flag' hack.
1156 * Made unfading work better, and not flicker on SGIs.
1157 * Added `sphere', `forest', `lisa' hacks from xlockmore.
1158 * Added (untested) support for SunOS Adjunct passwords.
1159 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
1160 * Cleaned up xlockmore compatibility layer.
1161 * Made `blitspin' able to grab an image off the screen.
1162 * Ported `swirl' and `bouboule' hacks from xlockmore.
1163 * Made the driver more careful about not leaving bits on
1164 the screen, or allowing other windows to raise
1165 themselves: it now re-blanks the screen every so often.
1166 * Added `-time' option to `xscreensaver-command'.
1167 * Improved SGI screen-grabbing some more: now it can grab
1168 TrueColor screens into PseudoColor windows and have the
1169 colors still come out semi-reasonably.
1170 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
1171 SGIs when windows of different visuals are present, by
1172 using the XReadDisplay() extension to get a true 24-bit
1173 image out of the frame buffer.
1174 * Made `noseguy' be in color, if compiled with XPM.
1175 * Ported `braid', `drift', `fract', `galaxy', `grav',
1176 `ifs', `julia', `laser', `lightning', `penrose',
1177 `sierpinski', `slip', `spiral', and `strange' hacks
1179 * Merged `hopalong' hack with a more recent version.
1181 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
1182 * Merged in support for non-Motif locking and demo mode.
1183 * Made `blitspin' and `bubbles' work in TrueColor.
1184 * Fixed a stupid bug I introduced in `imsmap'.
1185 * Added `poly' and `gravity' options to `qix'.
1186 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
1187 * Made `fade' and `unfade' work on 8-bit SGIs.
1188 * Made the dialog boxes more Motify.
1189 * Added `bubbles' hack.
1190 Changes since 1.25: * Added `lmorph' hack.
1191 * Added viscosity and mouse-control to attraction.
1192 * Fixed possible bad color choices in qix and attraction.
1193 * Added ramp-mode to halo.
1194 * Added a new RNG, which is faster and more portable
1195 than using the RNG in libc.
1196 * Made locking work on SCO.
1197 * Various other minor tweaks that I don't remember.
1198 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
1199 and present them on the screensaver window itself.
1200 * Made demo mode work correctly with non-default visuals
1201 and color maps, instead of always using the defaults.
1202 * Added -visual argument to all included screenhacks.
1203 * Support for the R6 MIT-SCREEN-SAVER server extension.
1204 * Made the demo mode list scroll properly.
1205 * Added `pedal' hack.
1206 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
1207 decayscreen, and xroger. Fixed apparent conservation-
1208 of-mass problem in pyro; made the shrapnel round.
1209 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
1210 Changes since 1.21: * Minor tweaks for X11R6.
1211 * Fixes for non-default visuals.
1212 Changes since 1.20: * Fixed bug in color blitspin; added default image.
1213 * Added diagnostics to noseguy. Fixed off-by-one
1214 error in flame. Added some missing casts.
1215 Changes since 1.18: * Added `flame' hack.
1216 * Fixed a minor Motif dialog text field bug.
1217 * Fixed yet another XPointer-not-defined-in-R4 bug.
1218 Changes since 1.17: * Added support for shadow password files.
1219 * Fixed some Motif-related locking bugs.
1220 * Added diagnostics when locking is disabled.
1221 * Made blitspin able to use the XPM library.
1222 * Added `decayscreen' hack.
1223 Changes since 1.16: * Added `halo' hack.
1224 Changes since 1.15: * Portability fixes.
1225 Changes since 1.14: * Broke the driver up into more source files.
1226 * Moved the hacks into their own directory.
1227 * Made all `time' parameters accept the 00:00:00 syntax,
1228 so that even the parameters which are normally read as
1229 minutes can be specified in seconds.
1230 * Added colormap cycling to `imsmap'.
1231 * Made hyper work with K&R compilers.
1232 Changes since 1.13: * Added `orbit' option to `attraction' hack.
1233 * Added `lock-timeout' option.
1234 * Cleaned up options of `maze' hack.
1235 Changes since 1.8: * Added demo mode, and locking.
1236 * Added `maze' hack.
1237 * Added `norotate' option to `rocks' hack.
1238 Changes since 1.4: * Works when run from XDM before anyone logs in.
1240 * Can use `xv' as a slideshow without using up colormap
1241 entries while the screen is not blanked.
1242 * Fixed a BadDrawable error in non-XIdle mode.
1243 * Added `blitspin' and `imsmap'.
1244 Changes since 1.0: * Current list of included hacks is now: qix, helix,
1245 rorschach, attraction, greynetic, rocks, pyro,
1246 hopalong, and noseguy.