11 http://www.jwz.org/xscreensaver/
13 ===============================================================================
15 This is the XScreenSaver source code distribution. It is strongly recommended
16 that you install a binary release rather than trying to compile it yourself.
17 Binaries are available for almost all platforms, including MacOS X. See the
18 XScreenSaver web site for details.
20 To compile on a Unix system with X11:
26 To compile on MacOS X:
28 Use the included XCode project. Requires XCode 3.1 and MacOS X 10.4.0
31 Interested in writing a new screen saver?
33 See the README.hacking file.
35 ===============================================================================
37 XScreenSaver has an extensive manual -- please read it!
39 ===============================================================================
41 Changes since 5.09: * Fixed some crashes and color problems on MacOS 10.6.
42 * Retired `hypercube' and `hyperball', which are
43 redundant with `polytopes'.
44 Changes since 5.08: * Ported to MacOS 10.6, including various 64-bit fixes.
45 * New hack, `rubikblocks'.
46 * Fixed another potential RANDR crash.
47 * Use correct proxy server on MacOS.
48 * `molecule' now correctly displays PDB 3.2 files.
49 * Updates to `mirrorblob', `glhanoi', and `sonar'.
50 * Rewritten version of `klein' hack.
51 * New hack, `surfaces', incorporating objects from old
52 `klein' hack, plus new ones.
53 * Merged `juggle' and `juggler3d' hacks.
54 * Fixed compilation under gcc 4.4.0 (strict aliasing).
55 * Fixed intermittent failure in `xscreensaver-command'.
56 Changes since 5.07: * New hack, `photopile'.
57 * Rewrote `sonar' and `jigsaw' as OpenGL programs.
58 * Minor tweaks to `maze', `m6502', `hypnowheel', and
60 * Savers that load images now obey EXIF rotation tags.
61 * Arrgh, more RANDR noise! Fixes this time for rotated
62 screens, and for systems where RANDR lies and says the
64 * When the password dialog has timed out or been
65 cancelled, don't pop it right back up a second time.
66 * Password timeouts/cancels don't count as
68 * Retired some of the older, less interesting savers:
69 say goodbye to `bubbles', `critical', `flag', `forest',
70 `glforestfire', `lmorph', `laser', `lightning', `lisa',
71 `lissie', `rotor', `sphere', `spiral', `t3d', `vines',
72 `whirlygig', and `worm'.
73 * Merged `munch' and `mismunch'.
74 * Updated `webcollage' to use twitpic.com as well.
75 Changes since 5.06: * Xinerama/RANDR tweaks for old-style multi-screen.
76 * Added bumpy skin and cel shading to `skytentacles'.
77 * `flipflop' can load images onto the tiles.
78 * Fixed the bouncing ball in `stairs'.
79 * Added the missing Utah Teapotahedron to `polyhedra'.
80 * `blitspin' works with color images on OSX now.
81 * Added transparency to `stonerview'.
82 * Improved layout of the preferences dialogs: they
83 should all now be usable even on ridiculously tiny
85 * MacOS preferences text fields now prevent you from
86 entering numbers that are out of range.
87 * Added "Reset to Defaults" button on X11.
88 * Added relevant Wikipedia links to many of the screen
90 * All hacks support the `-fps' option, not just GL ones.
91 * The `-fps' option now shows CPU load.
92 Changes since 5.05: * Xinerama/RANDR fixes: this time for sure. It should
93 now work to add/remove monitors or resize screens at
95 * New hack, `skytentacles'.
96 * New version of `gleidescope'.
97 * Added the `-log' option to the xscreensaver daemon,
98 since a truly shocking number of Linux users seem to
99 have no idea how to redirect output to a file.
100 * Added `-duration' arg to most image-loading hacks,
101 so that they pick a new image every few minutes.
102 * Added an ATM crash to BSOD.
103 Changes since 5.04: * New hacks, `cubicgrid', `hypnowheel', and
104 `lcdscrub' (which isn't really a screen saver).
105 * Updates to `m6502' and `gears'.
106 * Fixed double-buffering problems in `cubestorm' and
108 * Better handling of horizontal scroll wheels.
109 * Attempt to work around latest Xinerama braindamage:
110 if the server reports overlapping screens, use the
111 largest non-overlapping rectangles available.
112 * Don't warning about receipt of bogus ClientMessages,
113 since Gnome's just never going to stop sending those.
114 * Worked around MacOS 10.5 perl bug that caused the
115 text-displaying hacks to fail on some systems.
116 * Hopefully fixed font-related System Preferences crashes
118 * The recent PAM changes broke the "Caps Lock" warning
119 in the password dialog, the failed login warnings, and
120 syslogging. Fixed all that.
121 Changes since 5.03: * Fixed a possible crash in the unlock dialog (more
122 fallout from the recent PAM changes...)
123 * New hacks, `moebiusgears', `abstractile', and
125 * Rewrote `gears' to use better (involute) gear models,
126 and to be more random.
127 * Minor updates to `cwaves', `voronoi', `deco',
128 `glcells', `rd-bomb', `fireworkx' and `webcollage'.
129 * `pong' can now display the current time as the score.
130 * `xmatrix -mode pipe' works better.
131 * Minor tweaks for compilation on MacOS 10.5.0.
132 Changes since 5.02: * New hacks, `cwaves', `glcells', `m6502', and `voronoi'.
133 * Minor fixes to `bsod'.
134 * Fixed possible crash with PAM USB-dongle auth.
135 * Updated `webcollage' to track recent Google Images
137 Changes since 5.01: * Reworked PAM code to support fingerprint readers, etc.
138 * Ported 'webcollage' to OSX.
139 * Added OSX 10.2 and 10.3 kernel panics to `bsod'.
140 * Fixed a Xinerama crash when changing the screen count.
141 * New blobbier `mirrorblob'.
142 * Minor updates to `lisa', `bsod', `ifs', `hypertorus',
143 `polytopes', `circuit', `endgame', `crackberg',
144 `flipflop', `flipscreen3d', `fliptext', and `carousel'.
145 * Enabled multi-threaded OpenGL on OSX.
146 Changes since 5.00: * Backed out recent locale-related changes, since they
147 broke far more things than they fixed.
148 * Fail gracefully with ridiculously small window sizes.
149 * `xflame' and `flag' ignore bitmap option on MacOS.
150 * `speedmine' prefs work on MacOS.
151 * Better explosions in `boxed'.
152 * More dynamic motion in `sproingies'.
153 * More options in `flipflop'.
154 * Minor updates to `topblock'.
155 * Various other minor fixes.
156 Changes since 4.24: * Ported to MacOS X! (10.4.0 or newer)
157 * API change: instead of providing a single screenhack()
158 function that does not return, screen savers using the
159 screenhack.h framework must now provide "init" and
160 "draw one frame" functions instead. All bundled savers
161 have been updated; third-party patches will need work.
162 * All image-loading happens asynchronously.
163 * xscreensaver-getimage-file caches the contents of the
164 image directory for a few hours, so consecutive runs
165 won't have to re-list the whole directory tree.
166 * New hacks, `topblock' and `glschool'.
167 * Removed `xteevee' (superceded by `xanalogtv').
168 * Added variable-sized puzzle pieces to `jigsaw'.
169 * Changes to the defaults and command-line options of
170 many hacks to make the .xml files more consistent.
171 * Reap zombies in `glslideshow' and `carousel'.
172 * `sonar' works without setuid on OSX (dgram icmp).
173 * `xmatrix -mode pipe' displays the text of a subprocess.
174 * `endgame' has higher resolution chess-piece models.
175 * `webcollage' takes a -directory option to get images
176 from a local directory.
177 * The RPM spec file no longer auto-restarts xscreensaver
178 when a new version is installed. Restart it manually.
179 Changes since 4.23: * New versions of `cube21', `glsnake', `celtic'.
180 * Backed out a DPMS-related patch that cause desktop
181 flickering with some X servers.
182 * Fixed startup crash in getgroups() when running setuid.
183 * Default to not displaying stderr on the saver window.
184 * Fixed bad free() in "Documentation" button.
185 * Don't try to run hacks that aren't installed.
186 * Minor fixes to various XML config files and man pages.
187 Changes since 4.22: * New hacks, `glhanoi', `cube21', `timetunnel',
188 `juggler3d', and `celtic'.
189 * New versions of `tangram', `webcollage', `hypertorus',
190 `polytopes', and `ripples'.
191 * `sonar' is now quiet about unresolvable hosts.
192 * Minor corrections to BASIC code in `apple2'.
193 * xscreensaver-demo now provides an RPM clue when none
194 of the hacks seem to be installed.
195 * Don't install `ant' by default, since there is some
196 Java tool of that name, which was causing confusion.
197 And also it's boring.
198 * Made screen grabbing work again on MacOS 10.4.2.
199 * No longer prints bogus warnings about ClientMessages
200 intended for the window manager.
201 * Ignore unprintable characters in passwd entry field.
202 * Fixed yet another cross-host-display image-loading
204 * `xscreensaver-command -watch' and `-time' now work
206 Changes since 4.21: * Fixed a bug in the new mouse-motion code that caused
207 the screen to never blank on multi-head non-Xinerama
209 * New hacks, `interaggregate', `antmaze', `tangram',
211 * Minor tweaks to `fiberlamp', `ifs', `slidescreen',
212 `zoom', `sonar', `fireworkx', `whirlwindwarp',
213 `bubble3d', and `rd-bomb'.
214 * Added motion blur to `blinkbox'.
215 * `bsod' now includes Longhorn's "RSOD", and OS/2.
216 * Fixed `-wireframe' usage in most hacks and man pages.
217 Changes since 4.20: * New hack: `fliptext'.
218 * Changed default configure installation directories:
219 /usr/bin/ for xscreensaver, etc.;
220 /usr/libexec/xscreensaver/ for hacks;
221 /usr/share/xscreensaver/config/ for xml files.
222 * All the text-manipulating screen savers can have their
223 text source configured via `xscreensaver-demo' now.
224 * xscreensaver.spec now builds three RPMs:
225 base (no hacks); extras (2d hacks); and gl-extras.
226 * Added `-program' and `-front' option to `gltext'.
227 * Added `-shells' to `molecule'.
228 * Fixed text-alpha glitch in `carousel'.
229 * New `pacman': the ghosts can be killed now.
230 * Fixed a bug in screen-grabbing GL hacks where images
231 would be tiled instead of scaled on machines that
232 can't do large textures.
233 * `webcollage' can hit Flickr now.
234 * New (rewritten) implementation of `ifs'.
235 * The unlock dialog can be made to have a "New Login"
236 button that will run `gdmflexiserver'. Experimental!
237 * Fixed non-ASCII display bug in `starwars'.
238 * Configure finds a default for imageDirectory.
239 * "xscreensaver-command -lock" now works even if
240 in "screensaver disabled" mode.
241 * If a bad password is typed while CapsLock is on, the
242 unlock dialog says "CapsLock?" instead of "Sorry".
243 * Mouse motion only counts as activity if the mouse moved
244 more than 10 pixels (so the screen won't unblank every
245 time you bump your desk.)
246 * New mode option "random-same": if you have multiple
247 monitors, this will run the *same* randomly chosen
248 hack on each screen, instead of different ones on each.
249 Changes since 4.19: * New hacks, `fiberlamp', `boing', `boxfit', and
251 * Rewrote `glslideshow' again: should be faster now.
252 * Sped up loading of images in GL programs.
253 * `starwars' uses texture-mapped fonts now.
254 * New `bsod' modes: tru64, hppa, and nvidia.
255 * Updates to `webcollage', `juggle', `pinion',
256 `fireworkx', `sonar', `extrusion', `substrate', and
258 Changes since 4.18: * New hacks, `substrate', `intermomentary', `fireworkx',
260 * New version of `flow'.
261 * Made /proc/interrupts work again on Linux 2.6.
262 * Made `analogtv' not hog the CPU.
263 * Made analogtv-based hacks work properly on PPC/ARM.
264 * Fixed a bad memory leak in `piecewise'.
265 * Minor updates to `sonar', `molecule', `glmatrix',
266 `galaxy', and `webcollage'.
267 * Removed support for GTK 1.x (everyone uses 2.x now.)
268 Changes since 4.17: * Oops, pay no attention to the man behind the curtain.
269 Changes since 4.16: * New hacks, `anemotaxis' and `memscroller'.
270 * Fixed a bad bug that caused `vidwhacker' to never die.
271 * Fixed normals and lighting in `polyhedra'.
272 * Don't reuse the window when changing hacks (to work
273 around bugs in some GL implementations.)
274 * Made `xscreensaver-getimage-file' skip thumbnail-sized
276 * Fixed endian problem in `barcode' on non-x86.
277 * Updates to `webcollage', `apple2', `fuzzyflakes',
278 `atunnel', and `pacman'.
279 * Timing tweaks to `bubble3d', `bouncingcow', `engine',
280 `gltext', `lavalite', `molecule', `spotlight',
281 `sballs', `boxed', `blinkbox', and `circuit'.
282 * Configure updates for Fedora core 2 / xorg 6.7.0.
283 * Compile without warnings under gcc 3.3.3.
284 * I give up: don't blank or lock the screen if we can't
285 get a keyboard grab. In that case, both choices are
287 Changes since 4.15: * New hacks, `polyhedra', `fuzzyflakes', `antinspect',
289 * Minor updates to `webcollage', `bsod', `endgame',
290 `antspotlight', `xmatrix', and `glmatrix'.
291 * Added support for the RANDR (Resize and Rotate)
292 extension to detect when the size of the desktop has
293 been changed while xscreensaver is already running.
294 * Possibly-futile attempt to work around "rdesktop"
296 * Made `xscreensaver-getimage -file' still work even if
297 imageDirectory is unset.
298 * Convert Latin1 to ASCII in `starwars' and `phosphor'
299 (since the GLUT font only has ASCII glyphs.)
300 * Fixed randomization in `noof'.
301 * Added "GetViewPortIsFullOfLies" preference to work
302 around longstanding XFree86 bug #421.
303 * Made `sonar' subnet pinging work properly on bigendian
304 machines (e.g., PPC.)
305 Changes since 4.14: * New hacks, `wormhole', `mismunch', `noof', and
307 * `phosphor' and `apple2' include vt100 emulators now:
308 this means you can do "phosphor -program top", or
309 can use either program as an xterm replacement:
310 "apple2 -text -fast -program 'xemacs -nw'".
311 * `analogtv' (and related) fill the screen better.
312 * The '-gradient' option works in `atlantis' now.
313 * Minor updates to `blinkbox', `queens', `endgame',
314 `glmatrix', `mirrorblob', `blocktube', and `molecule'.
315 * Integrated SuSE's "external passwd helper" support.
316 * Marginally better /tmp handling in various programs.
317 * Updated config defaults for xplanet 1.0.3.
319 Changes since 4.13: * New hacks, `fontglide', `apple2', `xanalogtv', `pong',
320 `gleidescope', `mirrorblob', and `blinkbox'.
321 * New version of `glsnake' (with many more models.)
322 * Another Windows crash in `bsod'; also HVX/GCOS6/TPS6.
323 * New version of `endgame'.
324 * Screen grabbing works on MacOS X.
325 * Various minor fixes.
326 Changes since 4.12: * On Xinerama systems, xscreensaver now runs one hack on
327 each monitor (just like in "real" multi-head mode)
328 instead of running one hack stretching across all the
329 screens. Note that for this to work with any 3rd party
330 screensavers, they must update their "vroot.h" file.
331 * `webcollage' and `vidwhacker' display images using
332 `xscreensaver-getimage' now.
333 * Added `ljlatest' script for use with `starwars' and
335 Changes since 4.11: * New GL hacks, `flipflop', `antspotlight', and
337 * Added VMS to `bsod'.
338 * Compile without warnings in "gcc -pedantic".
339 * Updates to `webcollage' and `queens'.
340 * Fixed a bug that could cause PAM to hang.
341 Changes since 4.10: * New hacks, `hypertorus', `cubestorm', `glknots',
342 `blocktube', and `glmatrix'.
343 * Updates to `cloudlife', `engine', `xmatrix', and
345 * Rewrote `glslideshow': it should work on somewhat
346 wimpier video cards now.
347 * Various portability tweaks.
348 Changes since 4.09: * New hacks, `cloudlife' and `klein'.
349 * Added Apple ][+, HPUX, and OS/390 sessions to BSOD.
350 * Added some Matrix Reloaded text to `xmatrix'.
351 * Updates to `webcollage', `eruption', `jigglypuff',
352 `metaballs', and `endgame'.
353 * Completely ignore the `memoryLimit' setting now,
354 since it was still causing people GL grief.
355 * Various minor fixes.
356 Changes since 4.08: * New hacks, `flyingtoasters', `bouncingcow',
357 `jigglypuff', and `glslideshow'.
358 * More models in `engine'.
359 * Rewrote `xscreensaver-getimage' to remove reliance on
360 external image loaders (xv, chbg, xloadimage, etc.)
361 and to reduce flicker when loading files.
362 * Made `gflux' and `flipscreen3d' be mouse-spinnable.
363 Changes since 4.07: * New hacks, `atunnels' and `piecewise'.
364 * Physics improvement in `fluidballs'.
365 * Various fixes for XDarwin systems (X11 on MacOS X.)
366 * Added -clock option to `barcode'.
367 * Minor fixes to `endgame', `flurry', `flipscreen3d',
369 Changes since 4.06: * New hacks, `flurry', `metaballs', `eruption',
370 `popsquares', and `barcode'.
371 * Minor updates to `maze' for high density mazes.
372 * Added double buffering to `fluidballs' and `whirlygig'.
373 * Bug fixes for running xscreensaver to a remote XFree86
374 display (which nobody would ever do...)
375 * Updated `webcollage' (faster Alta Vista searching.)
376 * Updated `glplanet' so the sun sets in the west.
377 * Updated `sproingies' with smooth, unsegmented surfaces.
378 * Fixed Perl version-sensitivity in
379 `xscreensaver-getimage-file'.
380 * Fixed GTK2 scrolling bug in `xscreensaver-demo'.
381 Changes since 4.05: * New hack, `glblur' (disabled by default, since it
382 requires fast OpenGL texture support.)
383 * New hack, `halftone'.
384 * Updates to `endgame', `queens', `bumps', `glplanet',
385 `engine', and `circuit'.
386 * New version of `menger' that uses far fewer polygons.
387 * Fixed minor bug in `critical' that could cause some
388 bogus X servers to crash.
389 * Better labels in `molecule': the labels now appear to
390 be attached to the atoms, instead of floating in front
392 * Fixed bug that could rarely cause GL hacks to fail to
393 double-buffer (causing intermittent flickering.)
394 * Fixed a relative-URL-parsing bug in `webcollage'.
395 * Fixed a bug that (sometimes) caused the window manager
396 close box to kill `xscreensaver-demo' with a crash
397 instead of a graceful exit.
398 * Updated xscreensaver.pam to the Red Hat 7.3 way.
399 * More Gnome2-related configure crap.
400 * Updated to latest `config.guess' and `config.sub'.
401 * Fixed occasional core dump in `distort'.
402 * Added a Linux fsck failure and kernel panic to `bsod'.
403 * Added MacOS X kernel panic to `bsod'.
404 * Fixed a bug in `bsod' (all bsod bugs are ironic.)
405 * Fixed a bug that caused `xscreensaver-gl-helper' to
406 print a nonsense visual ID with some versions of
407 `printf': this could cause GL programs to display
408 incorrectly (e.g., flickery.)
409 Changes since 4.04: * More `configure' tweaks to try and get things working
410 on systems that both Gtk 1.x and 2.x installed.
411 * New hack, `endgame'.
412 * Minor updates to `gltext'.
413 Changes since 4.03: * Support for GTK 2.x / GNOME 2.x.
414 * The `configure' script will now use `pkg-config' if
415 you have it, in preference to `gtk-config', etc.
416 * New hacks, `lavalite', `queens', and `anemone'.
417 * Minor updates to `spheremonics', `gltext', `xmatrix'.
418 * You can use the mouse to manually spin most of the GL
419 hacks now (when they are displaying in a window.)
420 * Fixed a bug in `webcollage' (due to recent Alta Vista
421 url changes) that was causing it to try and load
422 incorrect image URLs.
423 * Made `xscreensaver-getimage' use gdk_pixbuf if it is
424 available: this means that those hacks that load images
425 will no longer rely on "xv", "xloadimage", etc. This
426 will close a race condition that could sometimes cause
427 your desktop background to be changed; and also makes
428 it possible for those programs to operate on image
429 files when running in windowed mode.
430 * `webcollage' can now be used in conjunction with
431 `driftnet' to display images snooped from your local
432 ethernet instead of obtained from search engines.
433 * Added man pages for all the hacks that didn't have
435 Changes since 4.02: * New hack, `spheremonics'.
436 * Minor updates to `webcollage', `cage', `moebius',
437 `morph3d', `boxed', `circuit', and `helix'.
438 * `pulsar' and `extrusion' can now load texture JPEGs.
439 * `rubik' now does non-square cubes.
440 * `fluidballs' now does various sizes of balls.
441 * `menger' and `sierpinski3d' now also show polygon
443 * `molecule' displays real subscripts in the formulae.
444 * GTK internationalization/localization support.
445 * Better detection of the various versions of libxml.
446 * Upgraded to autoconf 2.53 (from 2.13.)
447 Changes since 4.01: * Plugged a few minor leaks in `xscreensaver' and
449 * New hacks, `cubenetic' and `fluidballs'.
451 * Fixed sphere projection error in `glplanet'; installed
452 a better image of earth.
453 * Added Win2K and MacOS 1 crashes to `bsod'.
454 * Put back previous (better) version of `forest' that
455 was accidentially downgraded in the last release.
456 * New version of `bumps'.
457 * Made FPS computation in GL hacks more efficient: it
458 will influence the results less, thus resulting in
459 higher (but more accurate) reported frame rates.
460 Changes since 4.00: * New hacks: `twang', `glsnake', `boxed', `sballs',
462 * New hacks `apollonian', `euler2d', `juggle',
463 `polyominoes' and `thornbird', from xlockmore.
464 * Merged recent xlockmore changes into `ant', `braid',
465 `demon', `discrete', `drift', `fadeplot', `forest',
466 `grav', `hopalong', `ifs', `laser', `lightning',
467 `lisa', `lissie', `loop', `mountain', `penrose',
468 `rotor', `sierpinski', `slip', `sphere', `spiral',
469 `strange', and `vines'.
470 * Fixed the `gltext' bug that sometimes caused
471 horizontal lines to vanish again. This time for sure.
472 * Sped up `webcollage' by adding a C helper program to
473 replace the PPM pipeline. It also pastes images
474 semi-transparently now.
475 * Added support for the gdk_pixbuf library: if this lib
476 is available, then `blitspin', `xflame', and `flag'
477 can load GIF, JPEG, and PNG images in addition to XPM
479 * Fixed a rare race condition where the desktop-grabbing
480 hacks could sometimes leave the screen wedged, if the
481 user moved the mouse exactly when they were grabbing
482 the screen image (it would un-wedge the next time the
483 saver timed out or was activated.)
484 * Fixed incorrect colors in the screen-grabbing GL hacks
485 (`gflux' and `flipscreen3d'.)
486 * Made SIGHUP restart the daemon process (though using
487 `xscreensaver-command -restart' is still the preferred
489 * Tweaks to `xspirograph'.
490 * Minor configure and portability tweaks.
491 Changes since 3.34: * Redesigned `xscreensaver-demo' GUI: it now includes
492 small-preview and per-hack configuration dialogs.
493 * Added three new modes of operation: `One Screen Saver',
494 `Blank Screen', and `Don't Blank' (in addition to the
495 historical `Random Screen Saver').
496 * Configure now defaults to installing the hacks in
497 <prefix>/lib/xscreensaver/ instead of <prefix>/bin/.
498 (Most distros already did it this way.)
499 * New GL hacks, `menger', `engine', `flipscreen3d'.
500 * Made `sierpinski3d' be more colorful.
501 * New versions of `xmatrix' and `nerverot'.
502 * Fixed a bug in `starwars' that made the font be drawn
503 with thin lines in -root mode.
504 * Fixed a bad colormap bug in `crystal' that could make
505 *subsequent* hacks malfunction!
506 * Made `gflux' able to grab screen images (`-mode grab').
507 * Updated `webcollage' for recent search engine changes.
508 * Removed most command-line options to `xscreensaver':
509 just edit the ~/.xscreensaver file instead.
510 * Improved behavior on multi-screen and Xinerama systems:
511 the mouse now stays on the screen where the user left
512 it, and the password and splash dialogs always appear
513 on the screen that has the mouse.
514 * Made the splash dialog use more Gtk-like colors;
515 made it have only two buttons, "Settings" and "Help".
516 * Made `sonar' understand `.ssh/known_hosts2' format
517 files, and be better about stripping out illegal
519 Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
520 some versions of the GL libraries (appear to) allocate
521 hundreds of megs for every GL program, so `memoryLimit'
522 was causing GL programs to malfunction or crash on
524 * Improved fading on TrueColor XFree86 4.1.x systems.
525 * New GL hack, `circuit'.
526 * Added `fuzz' mode to `decayscreen'.
527 * New version of `whirlygig'.
528 * Added links to `xplanet' and `sphereEversion'.
529 * Fixed rare race condition that could make `sonar' hang.
530 * Fixed potential crash in `speedmine'.
531 * Made `xscreensaver-demo' not crash when imageDirectory
532 was set to a non-existent directory.
533 * Made `xscreensaver-getimage-video' invoke XawTV's
534 `streamer' program better.
535 * Made `phosphor' and `starwars' deal with CR, LF,
536 or CRLF line endings.
537 * Changes for Cygwin compilation environments.
538 * Made `sonar' compile on systems that can't ping.
539 * Configure changes for HPUX 10.20.
540 * Made PAM code work on Red Had 4.2 systems.
541 * Made `xscreensaver-command -deactivate' work when the
542 saver is not active: what that does is reset the idle
543 timer, as if keyboard input had been detected. This
544 was added for the benefit of people writing DVD-playing
545 software: they can now prevent the screensaver from
546 kicking in by sending a -deactivate message once a
547 minute while the movie is playing and not paused.
548 * Various minor portability tweaks.
549 Changes since 3.32: * New hacks, `speedmine' and `whirlygig'.
550 * Sped up `pyro', made the explosions look a bit better.
551 * Added better stars to `glplanet' and `starwars'.
552 * Many internal changes to `webcollage'.
553 * Some new options to `attraction'.
554 * Minor fix to `noseguy' to avoid un-erased pixels.
555 * Rewrote the screen-eraser effects so that they complete
556 in the same amount of time regardless of how slow
557 your X server is (some of them were glacial on servers
559 * Fixed a potential free memory reference that could
560 sometimes cause a crash at startup.
561 * Possibly fixed a problem that could cause the daemon
562 to crash with an X error. I was never able to
563 reproduce this problem, but I think I might have
564 figured out what caused it.
565 * Worked around a problem that caused PAM authentication
566 to fail on some Red Hat 7.x systems.
567 * Added a `memoryLimit' parameter that controls the
568 amount of memory a graphics hack may allocate: if they
569 try to allocate more than this, malloc() will fail
570 (and they will exit or (safely) crash, rather than
571 hogging memory.) Default is 50M.
572 * Made `gnome-help-browser' be the default way to display
573 man pages in `xscreensaver-demo', if running on a
575 Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
576 now operate on randomly chosen image files from disk,
577 or on frames captured from the system's video input,
578 instead of (or in addition to) manipulating images of
580 * Rewrote `vidwhacker' to use the new image-grabbing
582 * Made fading work on TrueColor XFree86 4.x systems.
583 * Fixed a subtle rendering bug in `atlantis' (the fish
585 * Made `atlantis' have a texture simulating light
586 reflections from the surface of the ocean.
587 * Fixed up label placement in `molecule'.
588 * Better color bars in `xteevee'.
589 * Made `install-strip' not try to strip scripts.
590 Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
591 the documentation to reflect the fact that all your
592 DPMS settings are now belong to xscreensaver.
593 * Fixed the `xscreensaver.spec' file so that `--force'
595 * New versions of `rotzoomer' and `nerverot'.
596 * Fixed an OSF/1 compilation problem in `molecule'.
597 Changes since 3.29: * New hacks, `molecule', `dangerball', and `rotzoomer'.
598 * New version of `gflux'.
599 * Made `gltext' able to display the current time.
600 * Fixed a floating-point-precision problem in `gltext'
601 that sometimes caused horizontal lines to vanish.
602 * Removed the `-window-id' option from the hacks:
603 it never worked right, and was unnecessary.
604 * Made the `starwars' hack use thicker lines, antialias
605 the text, and fade out at the far edge instead of just
607 * Fixed an SHM segment leak in `moire'.
608 Changes since 3.28: * Better rendering of the new logo.
609 * New hack, `gltext'.
610 * Added `-planetary' option to `gears', to draw a
611 different kind of gear system.
612 * Made motion and rotation be smoother in `gears',
613 `glplanet', `moebius', `rubik', and `sierpinski3d'.
614 * Improved coloration in `sierpinski3d'.
615 * Made the GL hacks react to window size changes.
616 * Made most of the GL hacks take a -fps option (like
617 `pulsar' did), so you can use them to benchmark your
619 * Fixed the previous fix to `sonar'.
620 * Minor fix to `nerverot'.
621 Made sonar able to ping hosts on DEC OSF1.
622 * Eliminated a bogus "didn't get enough colors" warning
623 in some of the hacks.
624 Changes since 3.27: * New logo for xscreensaver!
625 * New hacks, `starwars' and `stonerview'.
626 * Made the motion of the bouncing ball in `stairs' be a
628 * Made newly-added screenhacks be added to .xscreensaver
629 automatically: if there are hacks in the app-defaults
630 file that are not also in ~/.xscreensaver, they will
631 be added to the end of the list.
632 * Redid the `Screensaver Options' part of the control
633 panel; xscreensaver now lets you configure your DPMS
635 * Fixed some Makefile problems with non-GL builds.
636 * Fixed detection of MesaGL for version 3.3.
637 * Better workaround to Red Hat 7.0's broken gcc.
638 * Added Sparc Solaris kernel panic to `bsod'.
639 Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
640 * Fixed a free-memory-reference bug in `sonar'.
641 * Better error handling when there are no suitable GL
643 * Added diagnostic dialog when xscreensaver-demo is
644 unable to launch xscreensaver (e.g., when running as
646 * Fixed a bug that caused screenhack argument changes
647 to be ignored when xscreensaver-demo was running as
648 root (if "root" and "nobody" have different home
650 * Made the programs default to ":0" if $DISPLAY is unset.
651 * Made the `-verbose' output include information about
652 which server extensions were supported at compile time.
653 * Worked around Red Hat 7.0's broken gcc 2.96.
654 * Updated default delays on the GL hacks to look better
655 on machines with super-fast 3D hardware.
656 * Install `screensaver-properties-capplet' to work around
657 the usual egregious GNOME lossage.
658 Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
659 xscreensaver-demo (Gtk version only.)
660 * New hacks `hyperball', `xrayswarm', and `gflux'.
661 * New versions of `nerverot', `galaxy', and `hypercube'.
662 * Small fixes to `phosphor', `shadebobs', `xflame',
664 * Added external helper program `xscreensaver-gl-helper'
665 to figure out which X visual to use for OpenGL
667 * Configure updates for XFree86 4.0, and for BSD.
668 * Made it be more tolerant of bogus /etc/group files.
669 * When installing the PAM config file, first try to just
670 copy an existing "xdm" or "login" config file, so that
671 xscreensaver does authentication in the same way as the
673 Changes since 3.24: * New hack, `nerverot'.
674 * Added BSD kernel panic to `bsod'.
675 * New version of `shadebobs'.
676 * New version of `petri'.
677 * Updated `webcollage' to handle recent Altavista URL
678 format changes; made it search the AP photo gallery.
679 * Revamped command-line options of `sonar' and made it
680 properly handle subnets.
681 * The `bubbles' hack can now trickle up or down the
683 * The `xsublim' hack can now read its text from programs.
684 * Support for GLE version 3 in `extrusion'.
685 * Fixed compilation problems in `maze'.
686 * Fixed a rare crash in `flow'.
687 * Fixes for minor installation problems.
688 Changes since 3.23: * Added `-ignorant' option to `maze' hack.
689 * Updates to `critical', `bsod', `xflame', and `flow'.
690 * Added support for Kerberos 5 (via its Kerberos 4
691 compatibility layer.)
692 * Fixed a bad leak in `xteevee'.
693 * Updated `webcollage' to handle recent Altavista URL
695 * Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
696 since they were confusing people: all changes are now
698 * Made xscreensaver-demo install itself into the Gnome
700 Changes since 3.22: * Fixed some misplaced text fields in the Motif version
701 of xscreensaver-demo; fixed a crash in the Gtk version
702 that would happen if the programs list was empty.
703 * Fixed a recently-introduced bug in `pulsar'.
704 * Made `sierpinski3d' use solid tetrahedrons instead of
706 * Added `-trace' option to `xmatrix'.
707 * Added new hacks `xteevee' and `xspirograph'.
708 Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
709 * Rewrote the Motif version of xscreensaver-demo to
710 match the new Gtk version.
711 * The Athena toolkit is no longer supported.
712 Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
713 * Fixed a few visual selection bugs. I think the proper
714 GL visual should be used with nVidia systems now.
715 * Made the Makefiles obey $install_prefix.
716 * Made the `xscreensaver.spec' file able to generate both
717 GL and non-GL packages simultaneously.
718 Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
719 * Made `xscreensaver-command -exit' be silent when no
720 screen saver was running (instead of complaining.)
721 * Made `webcollage' and `vidwhacker' use `xloadimage'
722 when available (in addition to `xli' and `xv'.)
723 * Improved memory usage in `petri' and gave it a hard
724 cap on how much memory it can allocate.
725 * Added `-watch' option to `xscreensaver-command'.
726 * Made `xscreensaver-demo' come up with the
727 most-recently-run hack selected by default.
728 * Rewrote the Gtk version of `xscreensaver-demo'.
729 It's a lot easier to use now.
730 * Extended the format of the programs list in the
731 .xscreensaver file, for the benefit of the new
732 capabilities of `xscreensaver-demo'.
733 NOTE: you might want to delete your ~/.xscreensaver
734 file and allow it to be re-created! The old one
735 should still work, but xscreensaver-demo won't be as
737 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
738 * New hack, `extrusion'.
739 * Some of the web sites that `webcollage' was using as
740 its sources changed formats; tweaked it to understand
742 * Added typeahead in the password dialog: if the screen
743 is locked, and you unlock it by typing a character,
744 that key will be automatically inserted in the
745 password dialog (unless it is Return, Enter, Space,
746 or a non-printing key like Shift.)
747 * Made `xmatrix' take a `-small' option, since some
748 folks with tiny screens prefer a smaller font.
749 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
750 * Added `ccurve', `blaster', and `bumps' hacks.
751 * Replaced `forest' hack with a rewritten version.
752 * Worked around a Xinerama server bug.
753 * Fixed a bug I introduced in 3.10 that caused some
754 hacks to print out superfluous warnings about not
755 having gotten enough colors.
756 * Made `sproingies' obey the `-delay' option.
757 * Fixed a portability bug in `shadebobs'.
758 * Made `webcollage' and `vidwhacker' use `xli' in
759 preference to `xv', if it is available.
760 * Added a new source of images to `webcollage'.
761 * If running under KDE, xscreensaver will add itself to
762 KDE's list of screensavers (via xscreensaver.kss.)
763 * Improved detection of GL libraries.
764 * Made the password dialog include the date and time.
765 Changes since 3.16: * New version of `webcollage' -- deals better with
766 corrupted images, and can use an http proxy.
767 * New hack, `xsublim' (run it in the background,
768 rather than adding it to the programs list.)
769 * The xscreensaver daemon was leaking a file descriptor
770 each time you edited your .xscreensaver file. Fixed.
771 Changes since 3.15: * New version of `shadebobs'.
772 * Improved image selection in `webcollage', and sped it
774 * Made configure find the right version of perl.
775 * Rewrote the CGI part of `webcollage'.
776 * `make clean' was deleting some things it shouldn't.
777 * Fixed a typo in the default programs list.
778 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
779 * Added a `-stdout' arg to `vidwhacker' so that it can
780 be used in a pipeline.
781 * Made `petri' use less memory.
782 Changes since 3.13: * Various improvements to the Gtk port.
783 * Turned off PAM by default on Solaris, since PAM seems
784 generally to be misconfigured out-of-the-box.
785 * Made the `--without-gtk' configure option work.
786 * Made configure check the Gtk version number, since it
788 * Fixed a bug in the code that attempted to prevent
789 changes of screen resolution while the screen is
791 * Fixed a race condition in `xscreensaver-demo' that
792 could cause an X error at startup.
793 * Added `-transparent' option to `deluxe'.
794 * Added `petri' hack.
795 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
796 * Made it possible to build Motif, Gtk, and Athena
797 versions of `xscreensaver-demo' in the same directory
798 without reconfiguring.
799 * Made `xscreensaver-demo' chase symlinks before writing
800 the .xscreensaver file, so that if .xscreensaver is
801 itself a symlink, the underlying file will be replaced
803 * Some Makefile and configure tweaks for Solaris and
805 * Made it possible to set the fire color in `xflame'.
806 * Made transparency work in TrueColor (for `goop' and
808 * Fixed a multi-head bug introduced by the virtual
810 Changes since 3.11: * Made it so that you can't scroll the screen while the
811 lock dialog is up (with XFree86 virtual viewports.)
812 * Fixed a bug in `flag' that caused bob's chin to get cut
813 off after a few iterations.
814 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
815 less like a computer screen and more like the
816 typewritten paper it's supposed to be.
817 * New version of `pulsar'.
818 * Fixed Solaris compilation problem in `phosphor'.
819 * Made xscreensaver notice XFree86's virtual root window
820 hack, so that if the X server's root window is larger
821 than the monitor's displayable resolution, the screen
822 saver will limit itself to the area that actually
823 appears on the screen.
824 * Made the xscreensaver daemon do a better job of
825 picking the visual class that should be used for GL
826 programs. Less user intervention should be needed
827 now: you can use the logical visual name `GL' instead
828 of having to figure out by hand which one to use.
829 * Oops, the visual was defaulting to "best" instead of
830 "default", because the .xscreensaver file was not being
831 loaded quite early enough.
832 * Made configure figure out how to build icmp ping
833 support into the `sonar' hack automatically.
834 * Made warnings about not being able to read shadow
835 passwords not be printed if compiled with PAM support.
836 * Improved PAM startup diagnostics.
837 * Worked around the Solaris PAM bug that was causing
838 crashes there, so now PAM is turned on by default.
839 * Made configure detect the number of arguments that
840 pam_strerror() takes, since on Linux, this apparently
841 changed between 2.0 and 2.2, sigh.
842 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
843 as well as "keyboard".
844 * Made xscreensaver notice when there has been a sudden
845 large jump in wall-clock time, and if so, lock right
846 away, instead of waiting for "lockTimeout" to expire
847 first. (Laptops need this for safer recovery from
849 * Added `-throttle' option to `xscreensaver-command'.
850 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
851 * Fixed a bug in the color allocator that sometimes
852 caused `starfish' to fall back to monochrome.
853 * Reduced the amount of code that runs before root
854 privileges are disavowed: "normal" and "shadow"
855 passwords now do some initialization as root, but the
856 PAM and Kerberos authorization schemes will be
857 initialized while running as "nobody". Supposedly
858 this closes a potential security hole when using
860 * Added some more sanity checking to configure.
861 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
862 `spotlight', and `critical' hacks.
863 * Added some new modes to `decayscreen'.
864 * Made `deluxe' work in monochrome.
865 * Generalized usage of the Double-Buffer server extension
866 in several hacks (`compass', `deluxe', `interference',
867 `kumppa', and `moire2'.)
868 * Fixed another visual-depth problem in `rd-bomb'.
869 * The screen saver will now defer blanking if neither
870 the keyboard nor the mouse could be grabbed. Instead,
871 it will just try again in a few minutes. This fixes
872 a bad interaction between xscreensaver and programs
873 like VMware that hold the mouse and keyboard grabbed
875 * Added a new erase mode (expanding spiral.)
876 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
877 * Added `penetrate' and `deluxe' hacks.
878 * When linking against Motif 2.x, also link against XPM.
879 * Added support for using /proc/interrupts for idle
880 detection on Linux. Now xscreensaver shouldn't kick
881 in when the user is active on a non-X virtual console.
882 * Upgraded to autoconf 2.13.
883 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
884 in properly; check for _Xsetlocale in -lXintl.)
885 * Portability fixes for sonar.c.
886 * Fixed a compilation problem when you have GL but don't
888 * Made configure notice when MesaGL requires -lpthread.
889 * Made `flame' ignore SIGFPE (not sure if this is the
890 right fix; it seems only to be needed on FreeBSD.)
891 * Kludged `rd-bomb' work on visuals that are of depth 24
892 but that *do not* support pixmaps of depth 32.
893 * Fixed `halo' to work properly in TrueColor.
894 * Changed `xscreensaver.spec' to install the hacks in
895 /usr/X11R6/lib/xscreensaver/ by default, since that's
896 where recent Red Hat distributions put them.
898 * Updated versions of `crystal', `hopalong', and `flow'
900 * Imported `demon' and `loop' modes from xlockmore.
901 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
902 it was always installing a colormap if the
903 `installColormap' preference was set, meaning that
904 `xearth', `xv' and friends were using the wrong
905 colors on 8-bit systems.
906 * Turned off HAVE_PING in `sonar', since it compiles
907 on some Linux systems, but not others of similar
909 Changes since 3.04: * Fixed an off-by-1 in `distort'.
910 * Added `sonar' hack.
911 * New version of `glplanet' (with stars.)
912 * Made all hacks exit when you type `q' or `ESC' at them,
913 and made them obey the WM_DELETE_WINDOW ClientMessage.
914 * Fixed a nonfatal buffer overrun in lament (note:
915 lament still doesn't work with MesaGL 3.0: it dies in
916 lambda_textured_triangle1(), which is Mesa's bug, not
918 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
919 for other folks to generate RPMs.
920 * Made the password code work on HPUX in the situation
921 where: ``enhanced security'' is available; but not
922 used; but the user typed a password more than 8
923 characters long anyway. FTSOHPUX.
924 Changes since 3.02: * Made locking work when passwd aging is enabled.
925 * Added support for PAM (Pluggable Authentication
926 Modules.) It is still turned off by default, though,
927 since it doesn't seem to work on Solaris 2.6, and has
928 been behaving erratically on Red Hat 5.1.
929 * Made each possible authentication method be tried in
930 turn until one succeeds; this means that Kerberos is
931 being used, we will first check Kerberos, and if that
932 fails, will then consult the local password file.
934 * Save and restore the bits under the passwd dialog,
935 to avoid leaving a black rectangle behind when
936 unlocking is cancelled.
937 Changes since 3.01: * Not everyone has sys/select.h, sigh...
938 Changes since 3.00: * Some fixes to `reflect'.
940 * Made it log unsuccessful attempts to unlock the screen
942 * Fixed a bug where `xscreensaver-demo' could be seeing
943 a different programs list than `xscreensaver' did.
944 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
945 or Athena: demo-mode and the preferences panel are no
946 longer built in to the daemon, but are now handled by
947 an external program, `xscreensaver-demo'.
948 (I decided that this, along with the recent addition
949 of the `.xscreensaver' config file, justified bumping
950 the version number to 3.00, since this is a fairly
951 major architectural change.)
952 * Lines in the `*programs' resource may now begin with
953 the character "-", meaning "don't run this hack."
954 In this way, it's possible to disable a hack without
955 throwing away the information about it (making it
956 easier to change your mind later.) Eventually the
957 preferences/demo mode GUI should represent this as a
958 checkbox or something.
959 * Fixed a short race condition where it was possible for
960 xscreensaver to die with a BadWindow error if it was
961 blanking the screen just as another window was being
963 * Made it possible to disable specific modes in `bsod'.
964 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
965 many valves. Made the viewpoint in `pipes' be selected
966 randomly instead of always being -10 degrees.
967 * Fixed a bug in the XSHM code, in the case where the
968 server supports the XSHM extension but is not the same
969 machine as the client.
970 * Made `rd-bomb' default to taking up the whole screen.
971 * Made it not try to do fading/unfading if no PseudoColor
973 * Initial attempt at supporting VT-locking (doesn't work
975 * Eliminated the `captureStdout' resource; now
976 `captureStderr' controls both streams.
977 * Added `-capture-stderr' and `-no-capture-stderr'
978 command-line arguments.
979 * Added `glplanet' hack.
980 * When a hack is selected with `xscreensaver-command
981 -select', that hack will be used until further notice
982 (until the saver turns off, or another activation
984 Changes since 2.32: * Made `xscreensaver-command' print error messages:
985 the xscreensaver daemon now responds to ClientMessage
986 events by writing a response message on a window
987 property, instead of just writing to its stderr.
988 * Made the ~/.xscreensaver file be automatically reloaded
989 when the file date changes.
990 * The password dialog and splash screen no longer depend
991 on Motif or Athena. This should clear up a number of
992 focus problems, and is the first step on the path
993 toward moving all of the Motif/Athena/whatever code
994 out of the xscreensaver daemon, and into external
996 * Don't complain about LessTif 0.86 any more, since the
997 new password dialog makes that problem go away.
998 * Configure tweaks for Irix 6.5, SunOS 5.something.
999 * New `-reflect' option to `distort'.
1000 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
1001 so that the Preferences panel can save its settings.
1002 * New version of `rubik'.
1003 * Added `-select N' argument to `xscreensaver-command'.
1004 * Oops, left out some of the `bubbles3d' files...
1005 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
1006 * Made configure warn against MesaGL 2.6.
1007 * Fixed X error at startup when using non-default visual.
1008 * New version of `crystal', `ant', and `atlantis' from
1010 * New hack, `bubble3d'.
1011 * Added some new modes to `bsod'.
1012 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
1013 to be after Motif instead of before (Lesstif on Irix
1015 Changes since 2.28: * Work around a bash bug in configure.
1016 * Tweaked HPUX paths again. FTSOHPUX.
1017 * Made configure recommend against LessTif 0.86, due
1018 to a bug in that version that causes a security hole
1019 in the screen locking code. LessTif 0.87 will fix it.
1020 * Made all of the `--with' options to `configure' accept
1021 a directory option as well (so that --with-motif=/FOO
1022 will add -I/FOO/include -L/FOO/lib). I believe this is
1023 the Configure Party Line of how do to such things.
1024 * Fixed a bug where the mouse was left un-grabbed
1025 after the first time the graphics hack was changed
1026 (simplified all of the mouse-grabbing logic.)
1027 * Maybe possibly perhaps made `vidwhacker' really not
1028 leave stray xv windows around. This time for sure.
1029 * Added a new erase mode (random dots fizzling out.)
1030 * Added `-prefs' argument to `xscreensaver-command',
1031 that brings up the Preferences dialog directly (it
1032 seems that nobody ever noticed the `Preferences' button
1033 on the Demo Mode dialog, maybe this will help.)
1034 * Added a splash screen. Turn it off with *splash:false.
1035 Changes since 2.27: * Better macsbug text in `bsod'.
1036 * New version of `distort' with many new modes.
1037 * Plugged a leak in `coral'.
1038 * Tweaked configure for HPUX.
1039 * Removed some compiler warnings.
1040 * More consistent usage of stderr versus stdout.
1041 * More diagnostics should an X error occur.
1042 * Fixed a possible crash in SGI-specific unfading code.
1043 Changes since 2.26: * Improved version of `distort'.
1044 * Made `lament' compile against OpenGL 1.0 (though it
1045 still requires 1.1 to work properly.)
1046 * Updated my email address and home page.
1047 Changes since 2.24: * Improved motion in `rd-bomb'.
1048 * Added XSHM (shared memory extension) support to the
1049 `distort', `interference', `moire', `rd-bomb', and
1050 `swirl' hacks, which speeds them up a bit.
1051 * Added `lament' hack.
1052 Changes since 2.23: * Tweaked the order of the -L options again.
1053 * Cleaned up configure's `--help' message.
1054 * Added `kumppa' hack.
1055 * Smarter maze-solving algorithm in `maze'.
1056 * Took `xlyap' out of the default list of hacks, since
1057 it's just incredibly buggy (and slow.) Maybe someday
1058 someone will fix it...
1059 * Added `distort' hack, but didn't add it to the default
1060 list (yet) because it's still too slow.
1061 * Made the Athena demo dialog look more like the Motif
1062 version; it has a text-entry field now, too.
1063 * Made the Athena password dialog echo asterisks, like
1064 Motif does, instead of using a flyspeck font.
1065 * Some random configure tweaks.
1066 * Added a `timestamp' resource that makes the `-verbose'
1067 messages include the time at which they were printed.
1068 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
1069 let the user's "*background" resource show through.
1070 Fixed it in a different way.
1071 Changes since 2.21: * Added support for the DPMS server extension (Display
1072 Power Management System.)
1073 * Made configure advertize the `--enable-subdir' option a
1074 little more, since that seemed to cause some people
1075 stress. Also, made that directory be built into the
1076 xscreensaver executable, as a hardcoded prefix to
1077 $PATH. (Might help, shouldn't hurt.)
1078 * Made configure prefer the two-arg gettimeofday to the
1079 one-arg version, since AIX doesn't have any prototypes.
1080 * Made it work with Xaw3d (the 3D Athena library.)
1081 * Made `make install' create directories as necessary.
1082 * New version of lmorph from Sverre.
1083 * Added `crystal' and `discreet' hacks from xlockmore.
1084 * Added a new mode to `bsod'.
1085 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
1086 (It now describes the two states as "screen blanked
1087 since..." and "screen non-blanked since..." instead of
1088 "active since..." and "inactive since..." which a lot
1089 of people interpreted as meaning the opposite of what
1091 * Improved some error messages, in the hopes of making
1092 the distinction between the xscreensaver and
1093 xscreensaver-command programs more obvious.
1094 * Rewrote (and reorganized) parts of the xscreensaver and
1095 xscreensaver-command manual pages.
1096 * Renamed xscreensaver's `-lock' command-line option to
1097 be `-lock-mode', to avoid confusion with the `-lock'
1098 option to xscreensaver-command, which does a totally
1100 * Removed xscreensaver's `-demo' command-line option for
1101 a similar reason; use `xscreensaver-command -demo'
1103 * Disabled SGI's ``scheme'' nonsense in a better way than
1104 fully-qualifying the background colors in every single
1106 * Fixed some other minor cosmetic problems when *sgiMode
1108 * Fixed an X error in `bsod -root' (how ironic...)
1109 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
1110 grabbed properly (meaning the window manager menu could
1111 pop up over the demo-mode display.)
1112 * Fixed a bug that made the stderr output sometimes get
1114 * Fixed a bug that made the demo-mode scrollbar move too
1116 * Protected against a possible buffer overflow.
1117 * Made `vidwhacker' not leave stray xv windows around.
1118 * New version of `ant' so that Bagley doesn't calve.
1119 * Make configure on AIX get XShm from the right library.
1120 Changes since 2.18: * One file was missing from the tar file. Fixed.
1121 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
1122 * Added `epicycle' hack.
1123 * Added `interference' hack.
1124 * Added `truchet' hack.
1125 * Added `bsod' hack.
1126 * Added some new modes to `vidwhacker'.
1127 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
1128 can draw on arbitrary externally-provided windows.
1129 * Synched with xlockmore 4.11a01.
1130 * Added `flow' hack.
1131 * Added `atlantis' GL hack.
1132 * Renamed `puzzle' hack to `jigsaw', since xlock already
1133 had a different mode called `puzzle'.
1134 * Made it self-configure properly when Motif 2.1.0 is
1135 being used (requires -lXp now, sigh...)
1136 Changes since 2.15: * Made `flag' able to do XPM images.
1137 * New look for the xscreensaver logo (`xroger').
1138 * Fixed compilation error on Suns with adjunct passwords.
1139 * Got multi-architecture builds working again.
1140 * Some configure tweaks for building on HPUX and Solaris.
1141 * Fixed bug in decayscreen.
1142 * Fixed typo in passwd.c.
1143 * Made `cynosure' not die when colormap is full.
1144 Changes since 2.14: * Added `cynosure' hack.
1145 * Added `moire2' hack.
1146 * Tweaked `erase.c' some more.
1147 * Made unfading a bit smoother.
1148 * Added `vidwhacker' hack (not installed by default.)
1149 * Added `stairs' hack.
1150 * Split `escher' into `cage' and `moebius', as per
1152 * Changed subprocess handling to use sigaction() instead
1153 of signal() if it's available (this is necessary for
1154 SCO but should work fine on other systems too.)
1155 * Various other tweaks.
1156 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
1157 * Put in some kludges to work around a LessTif bug.
1158 * XScreenSaver is known to work with LessTif 0.82 now.
1159 * Made fading work on high-end SGI video hardware.
1160 * Fixed another SGI-specific bug in screen grabbing;
1161 will the madness never cease?
1162 * Fixed another crash in `xlyap'.
1163 Changes since 2.12: * Made `decayscreen' do directions other than down.
1164 * Improved `puzzle'.
1165 * Fixed a crash in `xlyap'.
1166 * Added CDE info to the man page, removed `cde.txt'.
1167 * Configure tweaks for Zippy.
1168 * Turned off the signal handling in `bubbles' because
1169 it was sometimes failing to die.
1170 * Added `hacks/xscreensaver-sgigl.c' to make it possible
1171 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
1172 with xscreensaver. Finally!
1173 * Fixed a buffer overrun in the locking code that some
1174 wily, malicious cracker must have slipped in.
1175 * Disabled Motif drag-and-drool in the dialog box
1176 buttons, since it's broken in some old versions of
1178 Changes since 2.11: * Added `README.debugging'.
1179 * Added `puzzle' hack.
1180 * Added `xlyap' hack.
1181 * Added `default-n' as a visual name, so that one can
1182 have -install on by default, but turn it off for
1183 certain poorly-behaved hacks (like xv.)
1184 * Added support for grabbing frames of external video
1185 (on SGI) to the screen-grabbing hacks (decayscreen,
1186 slidescreen, slip, blitspin, and puzzle.)
1187 * Improved look of tiles in `slidescreen'; fixed its
1188 color allocation problem.
1189 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
1190 * Added `lissie', `mountain', `triangle', `worm',
1191 `rotor', and `ant' from xlockmore.
1192 * Updated `sierpinski', `galaxy', and `lisa'.
1193 * Thickened the lines in `braid' and `lmorph'.
1194 * Updated VMS makefiles.
1195 * Renamed `fract' to `vines'.
1196 * Added `xjack' hack.
1197 * Made a few more hacks use erase.c, and added a few
1199 * Fixed compilation problem with Sun's version of OpenGL.
1200 * Added ability to use sigaction() instead of signal()
1201 to work around a SCO kernel bug.
1202 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
1203 * Configure tweaks for *BSD.
1204 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
1205 * New version of `maze' with some new algorithms.
1206 * New colorized version of `rocks'.
1207 * Fixed a bug in qix on 64-bit machines.
1208 * Fixed a bug in the -time option.
1209 * Fixed a bug in configure related to LessTif.
1210 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
1211 * Made multi-architecture ($VPATH) builds work properly.
1212 * Merged new GL stuff from xlockmore (rubik, morph3d.)
1213 * Fixed intermittent crashes in `imsmap' and `munch'.
1214 * Added `fadeplot' hack from xlockmore.
1215 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
1216 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
1217 configure to detect the extra-random -Xss library.
1218 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
1219 * Fixed low-color behavior of `goop', `pyro', `starfish',
1220 `greynetic', `flame', `halo', and `moire'.
1221 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
1222 * Added `munch' hack.
1223 * Added basic dependencies to the Makefile.in files.
1224 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
1225 * Made the yow/fortune program be a configure option.
1226 * Various configure tweaks.
1227 Changes since 2.00: * Added `goop' and `starfish' hacks.
1228 * Added colomap cycling to `halo'.
1229 * Made `attraction' use the new colormap allocator.
1230 * Added better $PATH diagnostics.
1231 * There was a bug in frand! Color selection should be
1233 Changes since 1.34: * Converted to use `configure' instead of `imake'.
1234 * ANSI C is now required.
1235 * Added Kerberos locking support, from Nat Lanza.
1236 * Made the stderr text use overlay planes, if possible.
1237 * Reworked the xlockmore compatibility stuff again.
1238 * Added `gears', `superquadrics', `escher', `pipes',
1239 and `sproingies' hacks (depend on OpenGL.)
1240 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
1241 Changes since 1.32: * Made it work with multi-headed displays.
1242 * Generalized sub-process management (Unix sucks!)
1243 * Added interactive mouse frobbing to Julia.
1244 * Added (untested) support for HPUX shadow passwords.
1245 * Made normal non-shadow passwords be checked if the
1246 shadow passwords aren't accessible for some reason.
1247 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
1248 made it possible to specify the desired visual on a
1250 * Cleaned up / restructured the driver: no more globals.
1251 * Made the Motif and Athena dialogs share more code.
1252 * Probably fixed some Athena colormap-installation bugs.
1253 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
1254 * Fixed divide-by-zero in bright random colormaps.
1255 * Added an improved version of xlock's `flag' hack.
1256 * Made unfading work better, and not flicker on SGIs.
1257 * Added `sphere', `forest', `lisa' hacks from xlockmore.
1258 * Added (untested) support for SunOS Adjunct passwords.
1259 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
1260 * Cleaned up xlockmore compatibility layer.
1261 * Made `blitspin' able to grab an image off the screen.
1262 * Ported `swirl' and `bouboule' hacks from xlockmore.
1263 * Made the driver more careful about not leaving bits on
1264 the screen, or allowing other windows to raise
1265 themselves: it now re-blanks the screen every so often.
1266 * Added `-time' option to `xscreensaver-command'.
1267 * Improved SGI screen-grabbing some more: now it can grab
1268 TrueColor screens into PseudoColor windows and have the
1269 colors still come out semi-reasonably.
1270 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
1271 SGIs when windows of different visuals are present, by
1272 using the XReadDisplay() extension to get a true 24-bit
1273 image out of the frame buffer.
1274 * Made `noseguy' be in color, if compiled with XPM.
1275 * Ported `braid', `drift', `fract', `galaxy', `grav',
1276 `ifs', `julia', `laser', `lightning', `penrose',
1277 `sierpinski', `slip', `spiral', and `strange' hacks
1279 * Merged `hopalong' hack with a more recent version.
1281 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
1282 * Merged in support for non-Motif locking and demo mode.
1283 * Made `blitspin' and `bubbles' work in TrueColor.
1284 * Fixed a stupid bug I introduced in `imsmap'.
1285 * Added `poly' and `gravity' options to `qix'.
1286 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
1287 * Made `fade' and `unfade' work on 8-bit SGIs.
1288 * Made the dialog boxes more Motify.
1289 * Added `bubbles' hack.
1290 Changes since 1.25: * Added `lmorph' hack.
1291 * Added viscosity and mouse-control to attraction.
1292 * Fixed possible bad color choices in qix and attraction.
1293 * Added ramp-mode to halo.
1294 * Added a new RNG, which is faster and more portable
1295 than using the RNG in libc.
1296 * Made locking work on SCO.
1297 * Various other minor tweaks that I don't remember.
1298 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
1299 and present them on the screensaver window itself.
1300 * Made demo mode work correctly with non-default visuals
1301 and color maps, instead of always using the defaults.
1302 * Added -visual argument to all included screenhacks.
1303 * Support for the R6 MIT-SCREEN-SAVER server extension.
1304 * Made the demo mode list scroll properly.
1305 * Added `pedal' hack.
1306 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
1307 decayscreen, and xroger. Fixed apparent conservation-
1308 of-mass problem in pyro; made the shrapnel round.
1309 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
1310 Changes since 1.21: * Minor tweaks for X11R6.
1311 * Fixes for non-default visuals.
1312 Changes since 1.20: * Fixed bug in color blitspin; added default image.
1313 * Added diagnostics to noseguy. Fixed off-by-one
1314 error in flame. Added some missing casts.
1315 Changes since 1.18: * Added `flame' hack.
1316 * Fixed a minor Motif dialog text field bug.
1317 * Fixed yet another XPointer-not-defined-in-R4 bug.
1318 Changes since 1.17: * Added support for shadow password files.
1319 * Fixed some Motif-related locking bugs.
1320 * Added diagnostics when locking is disabled.
1321 * Made blitspin able to use the XPM library.
1322 * Added `decayscreen' hack.
1323 Changes since 1.16: * Added `halo' hack.
1324 Changes since 1.15: * Portability fixes.
1325 Changes since 1.14: * Broke the driver up into more source files.
1326 * Moved the hacks into their own directory.
1327 * Made all `time' parameters accept the 00:00:00 syntax,
1328 so that even the parameters which are normally read as
1329 minutes can be specified in seconds.
1330 * Added colormap cycling to `imsmap'.
1331 * Made hyper work with K&R compilers.
1332 Changes since 1.13: * Added `orbit' option to `attraction' hack.
1333 * Added `lock-timeout' option.
1334 * Cleaned up options of `maze' hack.
1335 Changes since 1.8: * Added demo mode, and locking.
1336 * Added `maze' hack.
1337 * Added `norotate' option to `rocks' hack.
1338 Changes since 1.4: * Works when run from XDM before anyone logs in.
1340 * Can use `xv' as a slideshow without using up colormap
1341 entries while the screen is not blanked.
1342 * Fixed a BadDrawable error in non-XIdle mode.
1343 * Added `blitspin' and `imsmap'.
1344 Changes since 1.0: * Current list of included hacks is now: qix, helix,
1345 rorschach, attraction, greynetic, rocks, pyro,
1346 hopalong, and noseguy.
projects / xscreensaver / blob