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 4 and MacOS X 10.5
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 5.21: * New hacks, `kaleidocycle', `quasicrystal',
42 `unknownpleasures' and `hexadrop'.
43 * Performance improvements for `interference'.
44 * Fixed possible crashes in `apple2', `maze', `pacman',
45 `polyominoes', `fireworkx', `engine'.
46 * Fix for `bumps' in 64 bit.
47 * Fixed preferences crash on old iOS 5 devices.
48 * Fixed "Shake to Randomize"; display name of saver.
49 * Fixed weirdness with "Frame Rate" sliders on iOS.
50 * Fixed rotation problems with `pacman', `decayscreen'.
51 * Better dragging in `fluidballs'.
52 * Ignore rotation in hacks that don't benefit from it.
53 * Ignore DEACTIVATE messages when locked, instead of
54 popping up the password dialog box.
55 Changes since 5.20: * Changed default text source from Twitter to Wikipedia,
56 since Twitter now requires a login to get any feeds.
57 * New version of `fireworkx'.
58 * Minor fixes to `distort', `fontglide', `xmatrix'.
59 * New MacOS crash in `bsod'.
60 * New mode in `lcdscrub'.
61 Changes since 5.19: * Support for iPhone 5 screen size.
62 * Fixed modifier key handing in Apple2.app and
63 Phosphor.app on MacOS.
64 * Various minor bug fixes.
65 Changes since 5.18: * MacOS 10.8.0 compatibility.
66 * iOS performance improvements.
67 Changes since 5.17: * iOS responds to shake gestures to randomize.
68 * iOS can load images from your Photo Library.
69 * iOS has clickable Wikipedia links in Settings panels.
70 * Made `pipes' be ridiculously less efficient, but spin.
71 * Added better mouse control to `rubik', `cube21',
72 `crackberg', and `julia'.
73 * Cosmetic improvements to `queens' and `endgame'.
74 * `sonar' can now ping local subnet on DHCP.
75 * Most savers now resize/rotate properly.
77 Changes since 5.16: * More iOS tweaks.
78 * Fixed some compilation problems.
79 * Enlarged the texture image for `lament'.
80 Changes since 5.15: * Ported to iPhone and iPad.
81 * XInput devices now also ignore small mouse motions.
82 * Loading images via RSS feeds is much improved.
83 * Various minor fixes.
84 Changes since 5.14: * New hacks, `hilbert', `companioncube' and `tronbit'.
85 * Image-manipulating hacks can now load from RSS or Atom
86 feeds: `imageDirectory' may contain a URL.
87 * Updated `webcollage' for recent search engine changes.
88 * `phosphor' and `apple2' can now be run as standalone
89 terminal emulator applications on MacOS.
90 * `photopile' sped up.
91 * New molecule in `molecule'.
92 * "Upgraded" to XCode 4.0, which means that MacOS 10.4
93 PPC builds are impossible, and Intel is now required.
94 * Turned on LC_CTYPE on Linux; maybe Japanese password
96 Changes since 5.13: * Fixed crash in Blank Only Mode when DPMS disabled.
97 * Added "Quick Power-off in Blank Only Mode" option.
99 Changes since 5.12: * Optionally enabled full-scene OpenGL antialiasing.
100 Set the resource `*multiSample' to true if doing so
101 doesn't kill performance with your video hardware.
102 * New version of `glhanoi'.
103 * Image-loading hacks that display the file name now also
104 display the sub-directory (xscreensaver-getimage now
105 returns relative paths under imageDirectory).
106 * Passwords that contain UTF-8 non-Latin1 chars are now
108 * Numerous minor stability fixes.
109 Changes since 5.11: * Big speed improvement on OSX for heavy XCopyArea
110 users (`xmatrix', `moire2', `phosphor', etc.)
111 * Plugged a bad OSX-only Pixmap leak.
112 * Kludged around the OSX pty bug that caused text to
113 be truncated in phosphor, starwars, apple2, etc.
114 * New molecule in `molecule'.
115 * `glhanoi' now supports an arbitrary number of poles.
116 * Turned on "New Login" button by default.
117 * Added support for XInput-style alternate input devices.
118 Changes since 5.10: * New versions of `photopile', `strange'.
119 * Worked around MacOS 10.6 garbage collector bug that
120 caused the screen saver process to become enormous.
121 * Fixed flicker in `pipes', `cubestorm', and `noof'.
122 * Fixed EXIF rotation on MacOS 10.6.
123 * Fixed desktop-grabbing when screen locked on MacOS.
124 * Minor fixes to `circuit', `polyhedra', `tangram',
125 `gears', `pinion', `substrate', `xanalogtv'.
126 * Fixed some leaks in `xanalogtv' and `apple2'.
127 * Better seeding of the RNG.
128 Changes since 5.09: * Fixed some crashes and color problems on MacOS 10.6.
129 * Retired `hypercube' and `hyperball', which are
130 redundant with `polytopes'.
131 Changes since 5.08: * Ported to MacOS 10.6, including various 64-bit fixes.
132 * New hack, `rubikblocks'.
133 * Fixed another potential RANDR crash.
134 * Use correct proxy server on MacOS.
135 * `molecule' now correctly displays PDB 3.2 files.
136 * Updates to `mirrorblob', `glhanoi', and `sonar'.
137 * Rewritten version of `klein' hack.
138 * New hack, `surfaces', incorporating objects from old
139 `klein' hack, plus new ones.
140 * Merged `juggle' and `juggler3d' hacks.
141 * Fixed compilation under gcc 4.4.0 (strict aliasing).
142 * Fixed intermittent failure in `xscreensaver-command'.
143 Changes since 5.07: * New hack, `photopile'.
144 * Rewrote `sonar' and `jigsaw' as OpenGL programs.
145 * Minor tweaks to `maze', `m6502', `hypnowheel', and
147 * Savers that load images now obey EXIF rotation tags.
148 * Arrgh, more RANDR noise! Fixes this time for rotated
149 screens, and for systems where RANDR lies and says the
151 * When the password dialog has timed out or been
152 cancelled, don't pop it right back up a second time.
153 * Password timeouts/cancels don't count as
155 * Retired some of the older, less interesting savers:
156 say goodbye to `bubbles', `critical', `flag', `forest',
157 `glforestfire', `lmorph', `laser', `lightning', `lisa',
158 `lissie', `rotor', `sphere', `spiral', `t3d', `vines',
159 `whirlygig', and `worm'.
160 * Merged `munch' and `mismunch'.
161 * Updated `webcollage' to use twitpic.com as well.
162 Changes since 5.06: * Xinerama/RANDR tweaks for old-style multi-screen.
163 * Added bumpy skin and cel shading to `skytentacles'.
164 * `flipflop' can load images onto the tiles.
165 * Fixed the bouncing ball in `stairs'.
166 * Added the missing Utah Teapotahedron to `polyhedra'.
167 * `blitspin' works with color images on MacOS now.
168 * Added transparency to `stonerview'.
169 * Improved layout of the preferences dialogs: they
170 should all now be usable even on ridiculously tiny
172 * MacOS preferences text fields now prevent you from
173 entering numbers that are out of range.
174 * Added "Reset to Defaults" button on X11.
175 * Added relevant Wikipedia links to many of the screen
177 * All hacks support the `-fps' option, not just GL ones.
178 * The `-fps' option now shows CPU load.
179 Changes since 5.05: * Xinerama/RANDR fixes: this time for sure. It should
180 now work to add/remove monitors or resize screens at
182 * New hack, `skytentacles'.
183 * New version of `gleidescope'.
184 * Added the `-log' option to the xscreensaver daemon,
185 since a truly shocking number of Linux users seem to
186 have no idea how to redirect output to a file.
187 * Added `-duration' arg to most image-loading hacks,
188 so that they pick a new image every few minutes.
189 * Added an ATM crash to `bsod'.
190 Changes since 5.04: * New hacks, `cubicgrid', `hypnowheel', and
191 `lcdscrub' (which isn't really a screen saver).
192 * Updates to `m6502' and `gears'.
193 * Fixed double-buffering problems in `cubestorm' and
195 * Better handling of horizontal scroll wheels.
196 * Attempt to work around latest Xinerama braindamage:
197 if the server reports overlapping screens, use the
198 largest non-overlapping rectangles available.
199 * Don't warning about receipt of bogus ClientMessages,
200 since Gnome's just never going to stop sending those.
201 * Worked around MacOS 10.5 perl bug that caused the
202 text-displaying hacks to fail on some systems.
203 * Hopefully fixed font-related System Preferences crashes
205 * The recent PAM changes broke the "Caps Lock" warning
206 in the password dialog, the failed login warnings, and
207 syslogging. Fixed all that.
208 Changes since 5.03: * Fixed a possible crash in the unlock dialog (more
209 fallout from the recent PAM changes...)
210 * New hacks, `moebiusgears', `abstractile', and
212 * Rewrote `gears' to use better (involute) gear models,
213 and to be more random.
214 * Minor updates to `cwaves', `voronoi', `deco',
215 `glcells', `rd-bomb', `fireworkx' and `webcollage'.
216 * `pong' can now display the current time as the score.
217 * `xmatrix -mode pipe' works better.
218 * Minor tweaks for compilation on MacOS 10.5.0.
219 Changes since 5.02: * New hacks, `cwaves', `glcells', `m6502', and `voronoi'.
220 * Minor fixes to `bsod'.
221 * Fixed possible crash with PAM USB-dongle auth.
222 * Updated `webcollage' to track recent Google Images
224 Changes since 5.01: * Reworked PAM code to support fingerprint readers, etc.
225 * Ported 'webcollage' to MacOS.
226 * Added MacOS 10.2 and 10.3 kernel panics to `bsod'.
227 * Fixed a Xinerama crash when changing the screen count.
228 * New blobbier `mirrorblob'.
229 * Minor updates to `lisa', `bsod', `ifs', `hypertorus',
230 `polytopes', `circuit', `endgame', `crackberg',
231 `flipflop', `flipscreen3d', `fliptext', and `carousel'.
232 * Enabled multi-threaded OpenGL on MacOS.
233 Changes since 5.00: * Backed out recent locale-related changes, since they
234 broke far more things than they fixed.
235 * Fail gracefully with ridiculously small window sizes.
236 * `xflame' and `flag' ignore bitmap option on MacOS.
237 * `speedmine' prefs work on MacOS.
238 * Better explosions in `boxed'.
239 * More dynamic motion in `sproingies'.
240 * More options in `flipflop'.
241 * Minor updates to `topblock'.
242 * Various other minor fixes.
243 Changes since 4.24: * Ported to MacOS X! (10.4.0 or newer)
244 * API change: instead of providing a single screenhack()
245 function that does not return, screen savers using the
246 screenhack.h framework must now provide "init" and
247 "draw one frame" functions instead. All bundled savers
248 have been updated; third-party patches will need work.
249 * All image-loading happens asynchronously.
250 * xscreensaver-getimage-file caches the contents of the
251 image directory for a few hours, so consecutive runs
252 won't have to re-list the whole directory tree.
253 * New hacks, `topblock' and `glschool'.
254 * Removed `xteevee' (superceded by `xanalogtv').
255 * Added variable-sized puzzle pieces to `jigsaw'.
256 * Changes to the defaults and command-line options of
257 many hacks to make the .xml files more consistent.
258 * Reap zombies in `glslideshow' and `carousel'.
259 * `sonar' works without setuid on MacOS (dgram icmp).
260 * `xmatrix -mode pipe' displays the text of a subprocess.
261 * `endgame' has higher resolution chess-piece models.
262 * `webcollage' takes a -directory option to get images
263 from a local directory.
264 * The RPM spec file no longer auto-restarts xscreensaver
265 when a new version is installed. Restart it manually.
266 Changes since 4.23: * New versions of `cube21', `glsnake', `celtic'.
267 * Backed out a DPMS-related patch that cause desktop
268 flickering with some X servers.
269 * Fixed startup crash in getgroups() when running setuid.
270 * Default to not displaying stderr on the saver window.
271 * Fixed bad free() in "Documentation" button.
272 * Don't try to run hacks that aren't installed.
273 * Minor fixes to various XML config files and man pages.
274 Changes since 4.22: * New hacks, `glhanoi', `cube21', `timetunnel',
275 `juggler3d', and `celtic'.
276 * New versions of `tangram', `webcollage', `hypertorus',
277 `polytopes', and `ripples'.
278 * `sonar' is now quiet about unresolvable hosts.
279 * Minor corrections to BASIC code in `apple2'.
280 * xscreensaver-demo now provides an RPM clue when none
281 of the hacks seem to be installed.
282 * Don't install `ant' by default, since there is some
283 Java tool of that name, which was causing confusion.
284 And also it's boring.
285 * Made screen grabbing work again on MacOS 10.4.2.
286 * No longer prints bogus warnings about ClientMessages
287 intended for the window manager.
288 * Ignore unprintable characters in passwd entry field.
289 * Fixed yet another cross-host-display image-loading
291 * `xscreensaver-command -watch' and `-time' now work
293 Changes since 4.21: * Fixed a bug in the new mouse-motion code that caused
294 the screen to never blank on multi-head non-Xinerama
296 * New hacks, `interaggregate', `antmaze', `tangram',
298 * Minor tweaks to `fiberlamp', `ifs', `slidescreen',
299 `zoom', `sonar', `fireworkx', `whirlwindwarp',
300 `bubble3d', and `rd-bomb'.
301 * Added motion blur to `blinkbox'.
302 * `bsod' now includes Longhorn's "RSOD", and OS/2.
303 * Fixed `-wireframe' usage in most hacks and man pages.
304 Changes since 4.20: * New hack: `fliptext'.
305 * Changed default configure installation directories:
306 /usr/bin/ for xscreensaver, etc.;
307 /usr/libexec/xscreensaver/ for hacks;
308 /usr/share/xscreensaver/config/ for xml files.
309 * All the text-manipulating screen savers can have their
310 text source configured via `xscreensaver-demo' now.
311 * xscreensaver.spec now builds three RPMs:
312 base (no hacks); extras (2d hacks); and gl-extras.
313 * Added `-program' and `-front' option to `gltext'.
314 * Added `-shells' to `molecule'.
315 * Fixed text-alpha glitch in `carousel'.
316 * New `pacman': the ghosts can be killed now.
317 * Fixed a bug in screen-grabbing GL hacks where images
318 would be tiled instead of scaled on machines that
319 can't do large textures.
320 * `webcollage' can hit Flickr now.
321 * New (rewritten) implementation of `ifs'.
322 * The unlock dialog can be made to have a "New Login"
323 button that will run `gdmflexiserver'. Experimental!
324 * Fixed non-ASCII display bug in `starwars'.
325 * Configure finds a default for imageDirectory.
326 * "xscreensaver-command -lock" now works even if
327 in "screensaver disabled" mode.
328 * If a bad password is typed while CapsLock is on, the
329 unlock dialog says "CapsLock?" instead of "Sorry".
330 * Mouse motion only counts as activity if the mouse moved
331 more than 10 pixels (so the screen won't unblank every
332 time you bump your desk.)
333 * New mode option "random-same": if you have multiple
334 monitors, this will run the *same* randomly chosen
335 hack on each screen, instead of different ones on each.
336 Changes since 4.19: * New hacks, `fiberlamp', `boing', `boxfit', and
338 * Rewrote `glslideshow' again: should be faster now.
339 * Sped up loading of images in GL programs.
340 * `starwars' uses texture-mapped fonts now.
341 * New `bsod' modes: tru64, hppa, and nvidia.
342 * Updates to `webcollage', `juggle', `pinion',
343 `fireworkx', `sonar', `extrusion', `substrate', and
345 Changes since 4.18: * New hacks, `substrate', `intermomentary', `fireworkx',
347 * New version of `flow'.
348 * Made /proc/interrupts work again on Linux 2.6.
349 * Made `analogtv' not hog the CPU.
350 * Made analogtv-based hacks work properly on PPC/ARM.
351 * Fixed a bad memory leak in `piecewise'.
352 * Minor updates to `sonar', `molecule', `glmatrix',
353 `galaxy', and `webcollage'.
354 * Removed support for GTK 1.x (everyone uses 2.x now.)
355 Changes since 4.17: * Oops, pay no attention to the man behind the curtain.
356 Changes since 4.16: * New hacks, `anemotaxis' and `memscroller'.
357 * Fixed a bad bug that caused `vidwhacker' to never die.
358 * Fixed normals and lighting in `polyhedra'.
359 * Don't reuse the window when changing hacks (to work
360 around bugs in some GL implementations.)
361 * Made `xscreensaver-getimage-file' skip thumbnail-sized
363 * Fixed endian problem in `barcode' on non-x86.
364 * Updates to `webcollage', `apple2', `fuzzyflakes',
365 `atunnel', and `pacman'.
366 * Timing tweaks to `bubble3d', `bouncingcow', `engine',
367 `gltext', `lavalite', `molecule', `spotlight',
368 `sballs', `boxed', `blinkbox', and `circuit'.
369 * Configure updates for Fedora core 2 / xorg 6.7.0.
370 * Compile without warnings under gcc 3.3.3.
371 * I give up: don't blank or lock the screen if we can't
372 get a keyboard grab. In that case, both choices are
374 Changes since 4.15: * New hacks, `polyhedra', `fuzzyflakes', `antinspect',
376 * Minor updates to `webcollage', `bsod', `endgame',
377 `antspotlight', `xmatrix', and `glmatrix'.
378 * Added support for the RANDR (Resize and Rotate)
379 extension to detect when the size of the desktop has
380 been changed while xscreensaver is already running.
381 * Possibly-futile attempt to work around "rdesktop"
383 * Made `xscreensaver-getimage -file' still work even if
384 imageDirectory is unset.
385 * Convert Latin1 to ASCII in `starwars' and `phosphor'
386 (since the GLUT font only has ASCII glyphs.)
387 * Fixed randomization in `noof'.
388 * Added "GetViewPortIsFullOfLies" preference to work
389 around longstanding XFree86 bug #421.
390 * Made `sonar' subnet pinging work properly on bigendian
391 machines (e.g., PPC.)
392 Changes since 4.14: * New hacks, `wormhole', `mismunch', `noof', and
394 * `phosphor' and `apple2' include vt100 emulators now:
395 this means you can do "phosphor -program top", or
396 can use either program as an xterm replacement:
397 "apple2 -text -fast -program 'xemacs -nw'".
398 * `analogtv' (and related) fill the screen better.
399 * The '-gradient' option works in `atlantis' now.
400 * Minor updates to `blinkbox', `queens', `endgame',
401 `glmatrix', `mirrorblob', `blocktube', and `molecule'.
402 * Integrated SuSE's "external passwd helper" support.
403 * Marginally better /tmp handling in various programs.
404 * Updated config defaults for xplanet 1.0.3.
406 Changes since 4.13: * New hacks, `fontglide', `apple2', `xanalogtv', `pong',
407 `gleidescope', `mirrorblob', and `blinkbox'.
408 * New version of `glsnake' (with many more models.)
409 * Another Windows crash in `bsod'; also HVX/GCOS6/TPS6.
410 * New version of `endgame'.
411 * Screen grabbing works on MacOS X.
412 * Various minor fixes.
413 Changes since 4.12: * On Xinerama systems, xscreensaver now runs one hack on
414 each monitor (just like in "real" multi-head mode)
415 instead of running one hack stretching across all the
416 screens. Note that for this to work with any 3rd party
417 screensavers, they must update their "vroot.h" file.
418 * `webcollage' and `vidwhacker' display images using
419 `xscreensaver-getimage' now.
420 * Added `ljlatest' script for use with `starwars' and
422 Changes since 4.11: * New GL hacks, `flipflop', `antspotlight', and
424 * Added VMS to `bsod'.
425 * Compile without warnings in "gcc -pedantic".
426 * Updates to `webcollage' and `queens'.
427 * Fixed a bug that could cause PAM to hang.
428 Changes since 4.10: * New hacks, `hypertorus', `cubestorm', `glknots',
429 `blocktube', and `glmatrix'.
430 * Updates to `cloudlife', `engine', `xmatrix', and
432 * Rewrote `glslideshow': it should work on somewhat
433 wimpier video cards now.
434 * Various portability tweaks.
435 Changes since 4.09: * New hacks, `cloudlife' and `klein'.
436 * Added Apple ][+, HPUX, and OS/390 sessions to `bsod'.
437 * Added some Matrix Reloaded text to `xmatrix'.
438 * Updates to `webcollage', `eruption', `jigglypuff',
439 `metaballs', and `endgame'.
440 * Completely ignore the `memoryLimit' setting now,
441 since it was still causing people GL grief.
442 * Various minor fixes.
443 Changes since 4.08: * New hacks, `flyingtoasters', `bouncingcow',
444 `jigglypuff', and `glslideshow'.
445 * More models in `engine'.
446 * Rewrote `xscreensaver-getimage' to remove reliance on
447 external image loaders (xv, chbg, xloadimage, etc.)
448 and to reduce flicker when loading files.
449 * Made `gflux' and `flipscreen3d' be mouse-spinnable.
450 Changes since 4.07: * New hacks, `atunnels' and `piecewise'.
451 * Physics improvement in `fluidballs'.
452 * Various fixes for XDarwin systems (X11 on MacOS X.)
453 * Added -clock option to `barcode'.
454 * Minor fixes to `endgame', `flurry', `flipscreen3d',
456 Changes since 4.06: * New hacks, `flurry', `metaballs', `eruption',
457 `popsquares', and `barcode'.
458 * Minor updates to `maze' for high density mazes.
459 * Added double buffering to `fluidballs' and `whirlygig'.
460 * Bug fixes for running xscreensaver to a remote XFree86
461 display (which nobody would ever do...)
462 * Updated `webcollage' (faster Alta Vista searching.)
463 * Updated `glplanet' so the sun sets in the west.
464 * Updated `sproingies' with smooth, unsegmented surfaces.
465 * Fixed Perl version-sensitivity in
466 `xscreensaver-getimage-file'.
467 * Fixed GTK2 scrolling bug in `xscreensaver-demo'.
468 Changes since 4.05: * New hack, `glblur' (disabled by default, since it
469 requires fast OpenGL texture support.)
470 * New hack, `halftone'.
471 * Updates to `endgame', `queens', `bumps', `glplanet',
472 `engine', and `circuit'.
473 * New version of `menger' that uses far fewer polygons.
474 * Fixed minor bug in `critical' that could cause some
475 bogus X servers to crash.
476 * Better labels in `molecule': the labels now appear to
477 be attached to the atoms, instead of floating in front
479 * Fixed bug that could rarely cause GL hacks to fail to
480 double-buffer (causing intermittent flickering.)
481 * Fixed a relative-URL-parsing bug in `webcollage'.
482 * Fixed a bug that (sometimes) caused the window manager
483 close box to kill `xscreensaver-demo' with a crash
484 instead of a graceful exit.
485 * Updated xscreensaver.pam to the Red Hat 7.3 way.
486 * More Gnome2-related configure crap.
487 * Updated to latest `config.guess' and `config.sub'.
488 * Fixed occasional core dump in `distort'.
489 * Added a Linux fsck failure and kernel panic to `bsod'.
490 * Added MacOS X kernel panic to `bsod'.
491 * Fixed a bug in `bsod' (all bsod bugs are ironic.)
492 * Fixed a bug that caused `xscreensaver-gl-helper' to
493 print a nonsense visual ID with some versions of
494 `printf': this could cause GL programs to display
495 incorrectly (e.g., flickery.)
496 Changes since 4.04: * More `configure' tweaks to try and get things working
497 on systems that both Gtk 1.x and 2.x installed.
498 * New hack, `endgame'.
499 * Minor updates to `gltext'.
500 Changes since 4.03: * Support for GTK 2.x / GNOME 2.x.
501 * The `configure' script will now use `pkg-config' if
502 you have it, in preference to `gtk-config', etc.
503 * New hacks, `lavalite', `queens', and `anemone'.
504 * Minor updates to `spheremonics', `gltext', `xmatrix'.
505 * You can use the mouse to manually spin most of the GL
506 hacks now (when they are displaying in a window.)
507 * Fixed a bug in `webcollage' (due to recent Alta Vista
508 url changes) that was causing it to try and load
509 incorrect image URLs.
510 * Made `xscreensaver-getimage' use gdk_pixbuf if it is
511 available: this means that those hacks that load images
512 will no longer rely on "xv", "xloadimage", etc. This
513 will close a race condition that could sometimes cause
514 your desktop background to be changed; and also makes
515 it possible for those programs to operate on image
516 files when running in windowed mode.
517 * `webcollage' can now be used in conjunction with
518 `driftnet' to display images snooped from your local
519 ethernet instead of obtained from search engines.
520 * Added man pages for all the hacks that didn't have
522 Changes since 4.02: * New hack, `spheremonics'.
523 * Minor updates to `webcollage', `cage', `moebius',
524 `morph3d', `boxed', `circuit', and `helix'.
525 * `pulsar' and `extrusion' can now load texture JPEGs.
526 * `rubik' now does non-square cubes.
527 * `fluidballs' now does various sizes of balls.
528 * `menger' and `sierpinski3d' now also show polygon
530 * `molecule' displays real subscripts in the formulae.
531 * GTK internationalization/localization support.
532 * Better detection of the various versions of libxml.
533 * Upgraded to autoconf 2.53 (from 2.13.)
534 Changes since 4.01: * Plugged a few minor leaks in `xscreensaver' and
536 * New hacks, `cubenetic' and `fluidballs'.
538 * Fixed sphere projection error in `glplanet'; installed
539 a better image of earth.
540 * Added Win2K and MacOS 1 crashes to `bsod'.
541 * Put back previous (better) version of `forest' that
542 was accidentially downgraded in the last release.
543 * New version of `bumps'.
544 * Made FPS computation in GL hacks more efficient: it
545 will influence the results less, thus resulting in
546 higher (but more accurate) reported frame rates.
547 Changes since 4.00: * New hacks: `twang', `glsnake', `boxed', `sballs',
549 * New hacks `apollonian', `euler2d', `juggle',
550 `polyominoes' and `thornbird', from xlockmore.
551 * Merged recent xlockmore changes into `ant', `braid',
552 `demon', `discrete', `drift', `fadeplot', `forest',
553 `grav', `hopalong', `ifs', `laser', `lightning',
554 `lisa', `lissie', `loop', `mountain', `penrose',
555 `rotor', `sierpinski', `slip', `sphere', `spiral',
556 `strange', and `vines'.
557 * Fixed the `gltext' bug that sometimes caused
558 horizontal lines to vanish again. This time for sure.
559 * Sped up `webcollage' by adding a C helper program to
560 replace the PPM pipeline. It also pastes images
561 semi-transparently now.
562 * Added support for the gdk_pixbuf library: if this lib
563 is available, then `blitspin', `xflame', and `flag'
564 can load GIF, JPEG, and PNG images in addition to XPM
566 * Fixed a rare race condition where the desktop-grabbing
567 hacks could sometimes leave the screen wedged, if the
568 user moved the mouse exactly when they were grabbing
569 the screen image (it would un-wedge the next time the
570 saver timed out or was activated.)
571 * Fixed incorrect colors in the screen-grabbing GL hacks
572 (`gflux' and `flipscreen3d'.)
573 * Made SIGHUP restart the daemon process (though using
574 `xscreensaver-command -restart' is still the preferred
576 * Tweaks to `xspirograph'.
577 * Minor configure and portability tweaks.
578 Changes since 3.34: * Redesigned `xscreensaver-demo' GUI: it now includes
579 small-preview and per-hack configuration dialogs.
580 * Added three new modes of operation: `One Screen Saver',
581 `Blank Screen', and `Don't Blank' (in addition to the
582 historical `Random Screen Saver').
583 * Configure now defaults to installing the hacks in
584 <prefix>/lib/xscreensaver/ instead of <prefix>/bin/.
585 (Most distros already did it this way.)
586 * New GL hacks, `menger', `engine', `flipscreen3d'.
587 * Made `sierpinski3d' be more colorful.
588 * New versions of `xmatrix' and `nerverot'.
589 * Fixed a bug in `starwars' that made the font be drawn
590 with thin lines in -root mode.
591 * Fixed a bad colormap bug in `crystal' that could make
592 *subsequent* hacks malfunction!
593 * Made `gflux' able to grab screen images (`-mode grab').
594 * Updated `webcollage' for recent search engine changes.
595 * Removed most command-line options to `xscreensaver':
596 just edit the ~/.xscreensaver file instead.
597 * Improved behavior on multi-screen and Xinerama systems:
598 the mouse now stays on the screen where the user left
599 it, and the password and splash dialogs always appear
600 on the screen that has the mouse.
601 * Made the splash dialog use more Gtk-like colors;
602 made it have only two buttons, "Settings" and "Help".
603 * Made `sonar' understand `.ssh/known_hosts2' format
604 files, and be better about stripping out illegal
606 Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
607 some versions of the GL libraries (appear to) allocate
608 hundreds of megs for every GL program, so `memoryLimit'
609 was causing GL programs to malfunction or crash on
611 * Improved fading on TrueColor XFree86 4.1.x systems.
612 * New GL hack, `circuit'.
613 * Added `fuzz' mode to `decayscreen'.
614 * New version of `whirlygig'.
615 * Added links to `xplanet' and `sphereEversion'.
616 * Fixed rare race condition that could make `sonar' hang.
617 * Fixed potential crash in `speedmine'.
618 * Made `xscreensaver-demo' not crash when imageDirectory
619 was set to a non-existent directory.
620 * Made `xscreensaver-getimage-video' invoke XawTV's
621 `streamer' program better.
622 * Made `phosphor' and `starwars' deal with CR, LF,
623 or CRLF line endings.
624 * Changes for Cygwin compilation environments.
625 * Made `sonar' compile on systems that can't ping.
626 * Configure changes for HPUX 10.20.
627 * Made PAM code work on Red Had 4.2 systems.
628 * Made `xscreensaver-command -deactivate' work when the
629 saver is not active: what that does is reset the idle
630 timer, as if keyboard input had been detected. This
631 was added for the benefit of people writing DVD-playing
632 software: they can now prevent the screensaver from
633 kicking in by sending a -deactivate message once a
634 minute while the movie is playing and not paused.
635 * Various minor portability tweaks.
636 Changes since 3.32: * New hacks, `speedmine' and `whirlygig'.
637 * Sped up `pyro', made the explosions look a bit better.
638 * Added better stars to `glplanet' and `starwars'.
639 * Many internal changes to `webcollage'.
640 * Some new options to `attraction'.
641 * Minor fix to `noseguy' to avoid un-erased pixels.
642 * Rewrote the screen-eraser effects so that they complete
643 in the same amount of time regardless of how slow
644 your X server is (some of them were glacial on servers
646 * Fixed a potential free memory reference that could
647 sometimes cause a crash at startup.
648 * Possibly fixed a problem that could cause the daemon
649 to crash with an X error. I was never able to
650 reproduce this problem, but I think I might have
651 figured out what caused it.
652 * Worked around a problem that caused PAM authentication
653 to fail on some Red Hat 7.x systems.
654 * Added a `memoryLimit' parameter that controls the
655 amount of memory a graphics hack may allocate: if they
656 try to allocate more than this, malloc() will fail
657 (and they will exit or (safely) crash, rather than
658 hogging memory.) Default is 50M.
659 * Made `gnome-help-browser' be the default way to display
660 man pages in `xscreensaver-demo', if running on a
662 Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
663 now operate on randomly chosen image files from disk,
664 or on frames captured from the system's video input,
665 instead of (or in addition to) manipulating images of
667 * Rewrote `vidwhacker' to use the new image-grabbing
669 * Made fading work on TrueColor XFree86 4.x systems.
670 * Fixed a subtle rendering bug in `atlantis' (the fish
672 * Made `atlantis' have a texture simulating light
673 reflections from the surface of the ocean.
674 * Fixed up label placement in `molecule'.
675 * Better color bars in `xteevee'.
676 * Made `install-strip' not try to strip scripts.
677 Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
678 the documentation to reflect the fact that all your
679 DPMS settings are now belong to xscreensaver.
680 * Fixed the `xscreensaver.spec' file so that `--force'
682 * New versions of `rotzoomer' and `nerverot'.
683 * Fixed an OSF/1 compilation problem in `molecule'.
684 Changes since 3.29: * New hacks, `molecule', `dangerball', and `rotzoomer'.
685 * New version of `gflux'.
686 * Made `gltext' able to display the current time.
687 * Fixed a floating-point-precision problem in `gltext'
688 that sometimes caused horizontal lines to vanish.
689 * Removed the `-window-id' option from the hacks:
690 it never worked right, and was unnecessary.
691 * Made the `starwars' hack use thicker lines, antialias
692 the text, and fade out at the far edge instead of just
694 * Fixed an SHM segment leak in `moire'.
695 Changes since 3.28: * Better rendering of the new logo.
696 * New hack, `gltext'.
697 * Added `-planetary' option to `gears', to draw a
698 different kind of gear system.
699 * Made motion and rotation be smoother in `gears',
700 `glplanet', `moebius', `rubik', and `sierpinski3d'.
701 * Improved coloration in `sierpinski3d'.
702 * Made the GL hacks react to window size changes.
703 * Made most of the GL hacks take a -fps option (like
704 `pulsar' did), so you can use them to benchmark your
706 * Fixed the previous fix to `sonar'.
707 * Minor fix to `nerverot'.
708 Made sonar able to ping hosts on DEC OSF1.
709 * Eliminated a bogus "didn't get enough colors" warning
710 in some of the hacks.
711 Changes since 3.27: * New logo for xscreensaver!
712 * New hacks, `starwars' and `stonerview'.
713 * Made the motion of the bouncing ball in `stairs' be a
715 * Made newly-added screenhacks be added to .xscreensaver
716 automatically: if there are hacks in the app-defaults
717 file that are not also in ~/.xscreensaver, they will
718 be added to the end of the list.
719 * Redid the `Screensaver Options' part of the control
720 panel; xscreensaver now lets you configure your DPMS
722 * Fixed some Makefile problems with non-GL builds.
723 * Fixed detection of MesaGL for version 3.3.
724 * Better workaround to Red Hat 7.0's broken gcc.
725 * Added Sparc Solaris kernel panic to `bsod'.
726 Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
727 * Fixed a free-memory-reference bug in `sonar'.
728 * Better error handling when there are no suitable GL
730 * Added diagnostic dialog when xscreensaver-demo is
731 unable to launch xscreensaver (e.g., when running as
733 * Fixed a bug that caused screenhack argument changes
734 to be ignored when xscreensaver-demo was running as
735 root (if "root" and "nobody" have different home
737 * Made the programs default to ":0" if $DISPLAY is unset.
738 * Made the `-verbose' output include information about
739 which server extensions were supported at compile time.
740 * Worked around Red Hat 7.0's broken gcc 2.96.
741 * Updated default delays on the GL hacks to look better
742 on machines with super-fast 3D hardware.
743 * Install `screensaver-properties-capplet' to work around
744 the usual egregious GNOME lossage.
745 Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
746 xscreensaver-demo (Gtk version only.)
747 * New hacks `hyperball', `xrayswarm', and `gflux'.
748 * New versions of `nerverot', `galaxy', and `hypercube'.
749 * Small fixes to `phosphor', `shadebobs', `xflame',
751 * Added external helper program `xscreensaver-gl-helper'
752 to figure out which X visual to use for OpenGL
754 * Configure updates for XFree86 4.0, and for BSD.
755 * Made it be more tolerant of bogus /etc/group files.
756 * When installing the PAM config file, first try to just
757 copy an existing "xdm" or "login" config file, so that
758 xscreensaver does authentication in the same way as the
760 Changes since 3.24: * New hack, `nerverot'.
761 * Added BSD kernel panic to `bsod'.
762 * New version of `shadebobs'.
763 * New version of `petri'.
764 * Updated `webcollage' to handle recent Altavista URL
765 format changes; made it search the AP photo gallery.
766 * Revamped command-line options of `sonar' and made it
767 properly handle subnets.
768 * The `bubbles' hack can now trickle up or down the
770 * The `xsublim' hack can now read its text from programs.
771 * Support for GLE version 3 in `extrusion'.
772 * Fixed compilation problems in `maze'.
773 * Fixed a rare crash in `flow'.
774 * Fixes for minor installation problems.
775 Changes since 3.23: * Added `-ignorant' option to `maze' hack.
776 * Updates to `critical', `bsod', `xflame', and `flow'.
777 * Added support for Kerberos 5 (via its Kerberos 4
778 compatibility layer.)
779 * Fixed a bad leak in `xteevee'.
780 * Updated `webcollage' to handle recent Altavista URL
782 * Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
783 since they were confusing people: all changes are now
785 * Made xscreensaver-demo install itself into the Gnome
787 Changes since 3.22: * Fixed some misplaced text fields in the Motif version
788 of xscreensaver-demo; fixed a crash in the Gtk version
789 that would happen if the programs list was empty.
790 * Fixed a recently-introduced bug in `pulsar'.
791 * Made `sierpinski3d' use solid tetrahedrons instead of
793 * Added `-trace' option to `xmatrix'.
794 * Added new hacks `xteevee' and `xspirograph'.
795 Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
796 * Rewrote the Motif version of xscreensaver-demo to
797 match the new Gtk version.
798 * The Athena toolkit is no longer supported.
799 Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
800 * Fixed a few visual selection bugs. I think the proper
801 GL visual should be used with nVidia systems now.
802 * Made the Makefiles obey $install_prefix.
803 * Made the `xscreensaver.spec' file able to generate both
804 GL and non-GL packages simultaneously.
805 Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
806 * Made `xscreensaver-command -exit' be silent when no
807 screen saver was running (instead of complaining.)
808 * Made `webcollage' and `vidwhacker' use `xloadimage'
809 when available (in addition to `xli' and `xv'.)
810 * Improved memory usage in `petri' and gave it a hard
811 cap on how much memory it can allocate.
812 * Added `-watch' option to `xscreensaver-command'.
813 * Made `xscreensaver-demo' come up with the
814 most-recently-run hack selected by default.
815 * Rewrote the Gtk version of `xscreensaver-demo'.
816 It's a lot easier to use now.
817 * Extended the format of the programs list in the
818 .xscreensaver file, for the benefit of the new
819 capabilities of `xscreensaver-demo'.
820 NOTE: you might want to delete your ~/.xscreensaver
821 file and allow it to be re-created! The old one
822 should still work, but xscreensaver-demo won't be as
824 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
825 * New hack, `extrusion'.
826 * Some of the web sites that `webcollage' was using as
827 its sources changed formats; tweaked it to understand
829 * Added typeahead in the password dialog: if the screen
830 is locked, and you unlock it by typing a character,
831 that key will be automatically inserted in the
832 password dialog (unless it is Return, Enter, Space,
833 or a non-printing key like Shift.)
834 * Made `xmatrix' take a `-small' option, since some
835 folks with tiny screens prefer a smaller font.
836 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
837 * Added `ccurve', `blaster', and `bumps' hacks.
838 * Replaced `forest' hack with a rewritten version.
839 * Worked around a Xinerama server bug.
840 * Fixed a bug I introduced in 3.10 that caused some
841 hacks to print out superfluous warnings about not
842 having gotten enough colors.
843 * Made `sproingies' obey the `-delay' option.
844 * Fixed a portability bug in `shadebobs'.
845 * Made `webcollage' and `vidwhacker' use `xli' in
846 preference to `xv', if it is available.
847 * Added a new source of images to `webcollage'.
848 * If running under KDE, xscreensaver will add itself to
849 KDE's list of screensavers (via xscreensaver.kss.)
850 * Improved detection of GL libraries.
851 * Made the password dialog include the date and time.
852 Changes since 3.16: * New version of `webcollage' -- deals better with
853 corrupted images, and can use an http proxy.
854 * New hack, `xsublim' (run it in the background,
855 rather than adding it to the programs list.)
856 * The xscreensaver daemon was leaking a file descriptor
857 each time you edited your .xscreensaver file. Fixed.
858 Changes since 3.15: * New version of `shadebobs'.
859 * Improved image selection in `webcollage', and sped it
861 * Made configure find the right version of perl.
862 * Rewrote the CGI part of `webcollage'.
863 * `make clean' was deleting some things it shouldn't.
864 * Fixed a typo in the default programs list.
865 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
866 * Added a `-stdout' arg to `vidwhacker' so that it can
867 be used in a pipeline.
868 * Made `petri' use less memory.
869 Changes since 3.13: * Various improvements to the Gtk port.
870 * Turned off PAM by default on Solaris, since PAM seems
871 generally to be misconfigured out-of-the-box.
872 * Made the `--without-gtk' configure option work.
873 * Made configure check the Gtk version number, since it
875 * Fixed a bug in the code that attempted to prevent
876 changes of screen resolution while the screen is
878 * Fixed a race condition in `xscreensaver-demo' that
879 could cause an X error at startup.
880 * Added `-transparent' option to `deluxe'.
881 * Added `petri' hack.
882 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
883 * Made it possible to build Motif, Gtk, and Athena
884 versions of `xscreensaver-demo' in the same directory
885 without reconfiguring.
886 * Made `xscreensaver-demo' chase symlinks before writing
887 the .xscreensaver file, so that if .xscreensaver is
888 itself a symlink, the underlying file will be replaced
890 * Some Makefile and configure tweaks for Solaris and
892 * Made it possible to set the fire color in `xflame'.
893 * Made transparency work in TrueColor (for `goop' and
895 * Fixed a multi-head bug introduced by the virtual
897 Changes since 3.11: * Made it so that you can't scroll the screen while the
898 lock dialog is up (with XFree86 virtual viewports.)
899 * Fixed a bug in `flag' that caused bob's chin to get cut
900 off after a few iterations.
901 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
902 less like a computer screen and more like the
903 typewritten paper it's supposed to be.
904 * New version of `pulsar'.
905 * Fixed Solaris compilation problem in `phosphor'.
906 * Made xscreensaver notice XFree86's virtual root window
907 hack, so that if the X server's root window is larger
908 than the monitor's displayable resolution, the screen
909 saver will limit itself to the area that actually
910 appears on the screen.
911 * Made the xscreensaver daemon do a better job of
912 picking the visual class that should be used for GL
913 programs. Less user intervention should be needed
914 now: you can use the logical visual name `GL' instead
915 of having to figure out by hand which one to use.
916 * Oops, the visual was defaulting to "best" instead of
917 "default", because the .xscreensaver file was not being
918 loaded quite early enough.
919 * Made configure figure out how to build icmp ping
920 support into the `sonar' hack automatically.
921 * Made warnings about not being able to read shadow
922 passwords not be printed if compiled with PAM support.
923 * Improved PAM startup diagnostics.
924 * Worked around the Solaris PAM bug that was causing
925 crashes there, so now PAM is turned on by default.
926 * Made configure detect the number of arguments that
927 pam_strerror() takes, since on Linux, this apparently
928 changed between 2.0 and 2.2, sigh.
929 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
930 as well as "keyboard".
931 * Made xscreensaver notice when there has been a sudden
932 large jump in wall-clock time, and if so, lock right
933 away, instead of waiting for "lockTimeout" to expire
934 first. (Laptops need this for safer recovery from
936 * Added `-throttle' option to `xscreensaver-command'.
937 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
938 * Fixed a bug in the color allocator that sometimes
939 caused `starfish' to fall back to monochrome.
940 * Reduced the amount of code that runs before root
941 privileges are disavowed: "normal" and "shadow"
942 passwords now do some initialization as root, but the
943 PAM and Kerberos authorization schemes will be
944 initialized while running as "nobody". Supposedly
945 this closes a potential security hole when using
947 * Added some more sanity checking to configure.
948 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
949 `spotlight', and `critical' hacks.
950 * Added some new modes to `decayscreen'.
951 * Made `deluxe' work in monochrome.
952 * Generalized usage of the Double-Buffer server extension
953 in several hacks (`compass', `deluxe', `interference',
954 `kumppa', and `moire2'.)
955 * Fixed another visual-depth problem in `rd-bomb'.
956 * The screen saver will now defer blanking if neither
957 the keyboard nor the mouse could be grabbed. Instead,
958 it will just try again in a few minutes. This fixes
959 a bad interaction between xscreensaver and programs
960 like VMware that hold the mouse and keyboard grabbed
962 * Added a new erase mode (expanding spiral.)
963 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
964 * Added `penetrate' and `deluxe' hacks.
965 * When linking against Motif 2.x, also link against XPM.
966 * Added support for using /proc/interrupts for idle
967 detection on Linux. Now xscreensaver shouldn't kick
968 in when the user is active on a non-X virtual console.
969 * Upgraded to autoconf 2.13.
970 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
971 in properly; check for _Xsetlocale in -lXintl.)
972 * Portability fixes for sonar.c.
973 * Fixed a compilation problem when you have GL but don't
975 * Made configure notice when MesaGL requires -lpthread.
976 * Made `flame' ignore SIGFPE (not sure if this is the
977 right fix; it seems only to be needed on FreeBSD.)
978 * Kludged `rd-bomb' work on visuals that are of depth 24
979 but that *do not* support pixmaps of depth 32.
980 * Fixed `halo' to work properly in TrueColor.
981 * Changed `xscreensaver.spec' to install the hacks in
982 /usr/X11R6/lib/xscreensaver/ by default, since that's
983 where recent Red Hat distributions put them.
985 * Updated versions of `crystal', `hopalong', and `flow'
987 * Imported `demon' and `loop' modes from xlockmore.
988 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
989 it was always installing a colormap if the
990 `installColormap' preference was set, meaning that
991 `xearth', `xv' and friends were using the wrong
992 colors on 8-bit systems.
993 * Turned off HAVE_PING in `sonar', since it compiles
994 on some Linux systems, but not others of similar
996 Changes since 3.04: * Fixed an off-by-1 in `distort'.
997 * Added `sonar' hack.
998 * New version of `glplanet' (with stars.)
999 * Made all hacks exit when you type `q' or `ESC' at them,
1000 and made them obey the WM_DELETE_WINDOW ClientMessage.
1001 * Fixed a nonfatal buffer overrun in lament (note:
1002 lament still doesn't work with MesaGL 3.0: it dies in
1003 lambda_textured_triangle1(), which is Mesa's bug, not
1005 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
1006 for other folks to generate RPMs.
1007 * Made the password code work on HPUX in the situation
1008 where: ``enhanced security'' is available; but not
1009 used; but the user typed a password more than 8
1010 characters long anyway. FTSOHPUX.
1011 Changes since 3.02: * Made locking work when passwd aging is enabled.
1012 * Added support for PAM (Pluggable Authentication
1013 Modules.) It is still turned off by default, though,
1014 since it doesn't seem to work on Solaris 2.6, and has
1015 been behaving erratically on Red Hat 5.1.
1016 * Made each possible authentication method be tried in
1017 turn until one succeeds; this means that Kerberos is
1018 being used, we will first check Kerberos, and if that
1019 fails, will then consult the local password file.
1021 * Save and restore the bits under the passwd dialog,
1022 to avoid leaving a black rectangle behind when
1023 unlocking is cancelled.
1024 Changes since 3.01: * Not everyone has sys/select.h, sigh...
1025 Changes since 3.00: * Some fixes to `reflect'.
1027 * Made it log unsuccessful attempts to unlock the screen
1029 * Fixed a bug where `xscreensaver-demo' could be seeing
1030 a different programs list than `xscreensaver' did.
1031 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
1032 or Athena: demo-mode and the preferences panel are no
1033 longer built in to the daemon, but are now handled by
1034 an external program, `xscreensaver-demo'.
1035 (I decided that this, along with the recent addition
1036 of the `.xscreensaver' config file, justified bumping
1037 the version number to 3.00, since this is a fairly
1038 major architectural change.)
1039 * Lines in the `*programs' resource may now begin with
1040 the character "-", meaning "don't run this hack."
1041 In this way, it's possible to disable a hack without
1042 throwing away the information about it (making it
1043 easier to change your mind later.) Eventually the
1044 preferences/demo mode GUI should represent this as a
1045 checkbox or something.
1046 * Fixed a short race condition where it was possible for
1047 xscreensaver to die with a BadWindow error if it was
1048 blanking the screen just as another window was being
1050 * Made it possible to disable specific modes in `bsod'.
1051 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
1052 many valves. Made the viewpoint in `pipes' be selected
1053 randomly instead of always being -10 degrees.
1054 * Fixed a bug in the XSHM code, in the case where the
1055 server supports the XSHM extension but is not the same
1056 machine as the client.
1057 * Made `rd-bomb' default to taking up the whole screen.
1058 * Made it not try to do fading/unfading if no PseudoColor
1060 * Initial attempt at supporting VT-locking (doesn't work
1062 * Eliminated the `captureStdout' resource; now
1063 `captureStderr' controls both streams.
1064 * Added `-capture-stderr' and `-no-capture-stderr'
1065 command-line arguments.
1066 * Added `glplanet' hack.
1067 * When a hack is selected with `xscreensaver-command
1068 -select', that hack will be used until further notice
1069 (until the saver turns off, or another activation
1071 Changes since 2.32: * Made `xscreensaver-command' print error messages:
1072 the xscreensaver daemon now responds to ClientMessage
1073 events by writing a response message on a window
1074 property, instead of just writing to its stderr.
1075 * Made the ~/.xscreensaver file be automatically reloaded
1076 when the file date changes.
1077 * The password dialog and splash screen no longer depend
1078 on Motif or Athena. This should clear up a number of
1079 focus problems, and is the first step on the path
1080 toward moving all of the Motif/Athena/whatever code
1081 out of the xscreensaver daemon, and into external
1083 * Don't complain about LessTif 0.86 any more, since the
1084 new password dialog makes that problem go away.
1085 * Configure tweaks for Irix 6.5, SunOS 5.something.
1086 * New `-reflect' option to `distort'.
1087 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
1088 so that the Preferences panel can save its settings.
1089 * New version of `rubik'.
1090 * Added `-select N' argument to `xscreensaver-command'.
1091 * Oops, left out some of the `bubbles3d' files...
1092 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
1093 * Made configure warn against MesaGL 2.6.
1094 * Fixed X error at startup when using non-default visual.
1095 * New version of `crystal', `ant', and `atlantis' from
1097 * New hack, `bubble3d'.
1098 * Added some new modes to `bsod'.
1099 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
1100 to be after Motif instead of before (Lesstif on Irix
1102 Changes since 2.28: * Work around a bash bug in configure.
1103 * Tweaked HPUX paths again. FTSOHPUX.
1104 * Made configure recommend against LessTif 0.86, due
1105 to a bug in that version that causes a security hole
1106 in the screen locking code. LessTif 0.87 will fix it.
1107 * Made all of the `--with' options to `configure' accept
1108 a directory option as well (so that --with-motif=/FOO
1109 will add -I/FOO/include -L/FOO/lib). I believe this is
1110 the Configure Party Line of how do to such things.
1111 * Fixed a bug where the mouse was left un-grabbed
1112 after the first time the graphics hack was changed
1113 (simplified all of the mouse-grabbing logic.)
1114 * Maybe possibly perhaps made `vidwhacker' really not
1115 leave stray xv windows around. This time for sure.
1116 * Added a new erase mode (random dots fizzling out.)
1117 * Added `-prefs' argument to `xscreensaver-command',
1118 that brings up the Preferences dialog directly (it
1119 seems that nobody ever noticed the `Preferences' button
1120 on the Demo Mode dialog, maybe this will help.)
1121 * Added a splash screen. Turn it off with *splash:false.
1122 Changes since 2.27: * Better macsbug text in `bsod'.
1123 * New version of `distort' with many new modes.
1124 * Plugged a leak in `coral'.
1125 * Tweaked configure for HPUX.
1126 * Removed some compiler warnings.
1127 * More consistent usage of stderr versus stdout.
1128 * More diagnostics should an X error occur.
1129 * Fixed a possible crash in SGI-specific unfading code.
1130 Changes since 2.26: * Improved version of `distort'.
1131 * Made `lament' compile against OpenGL 1.0 (though it
1132 still requires 1.1 to work properly.)
1133 * Updated my email address and home page.
1134 Changes since 2.24: * Improved motion in `rd-bomb'.
1135 * Added XSHM (shared memory extension) support to the
1136 `distort', `interference', `moire', `rd-bomb', and
1137 `swirl' hacks, which speeds them up a bit.
1138 * Added `lament' hack.
1139 Changes since 2.23: * Tweaked the order of the -L options again.
1140 * Cleaned up configure's `--help' message.
1141 * Added `kumppa' hack.
1142 * Smarter maze-solving algorithm in `maze'.
1143 * Took `xlyap' out of the default list of hacks, since
1144 it's just incredibly buggy (and slow.) Maybe someday
1145 someone will fix it...
1146 * Added `distort' hack, but didn't add it to the default
1147 list (yet) because it's still too slow.
1148 * Made the Athena demo dialog look more like the Motif
1149 version; it has a text-entry field now, too.
1150 * Made the Athena password dialog echo asterisks, like
1151 Motif does, instead of using a flyspeck font.
1152 * Some random configure tweaks.
1153 * Added a `timestamp' resource that makes the `-verbose'
1154 messages include the time at which they were printed.
1155 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
1156 let the user's "*background" resource show through.
1157 Fixed it in a different way.
1158 Changes since 2.21: * Added support for the DPMS server extension (Display
1159 Power Management System.)
1160 * Made configure advertize the `--enable-subdir' option a
1161 little more, since that seemed to cause some people
1162 stress. Also, made that directory be built into the
1163 xscreensaver executable, as a hardcoded prefix to
1164 $PATH. (Might help, shouldn't hurt.)
1165 * Made configure prefer the two-arg gettimeofday to the
1166 one-arg version, since AIX doesn't have any prototypes.
1167 * Made it work with Xaw3d (the 3D Athena library.)
1168 * Made `make install' create directories as necessary.
1169 * New version of lmorph from Sverre.
1170 * Added `crystal' and `discreet' hacks from xlockmore.
1171 * Added a new mode to `bsod'.
1172 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
1173 (It now describes the two states as "screen blanked
1174 since..." and "screen non-blanked since..." instead of
1175 "active since..." and "inactive since..." which a lot
1176 of people interpreted as meaning the opposite of what
1178 * Improved some error messages, in the hopes of making
1179 the distinction between the xscreensaver and
1180 xscreensaver-command programs more obvious.
1181 * Rewrote (and reorganized) parts of the xscreensaver and
1182 xscreensaver-command manual pages.
1183 * Renamed xscreensaver's `-lock' command-line option to
1184 be `-lock-mode', to avoid confusion with the `-lock'
1185 option to xscreensaver-command, which does a totally
1187 * Removed xscreensaver's `-demo' command-line option for
1188 a similar reason; use `xscreensaver-command -demo'
1190 * Disabled SGI's ``scheme'' nonsense in a better way than
1191 fully-qualifying the background colors in every single
1193 * Fixed some other minor cosmetic problems when *sgiMode
1195 * Fixed an X error in `bsod -root' (how ironic...)
1196 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
1197 grabbed properly (meaning the window manager menu could
1198 pop up over the demo-mode display.)
1199 * Fixed a bug that made the stderr output sometimes get
1201 * Fixed a bug that made the demo-mode scrollbar move too
1203 * Protected against a possible buffer overflow.
1204 * Made `vidwhacker' not leave stray xv windows around.
1205 * New version of `ant' so that Bagley doesn't calve.
1206 * Make configure on AIX get XShm from the right library.
1207 Changes since 2.18: * One file was missing from the tar file. Fixed.
1208 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
1209 * Added `epicycle' hack.
1210 * Added `interference' hack.
1211 * Added `truchet' hack.
1212 * Added `bsod' hack.
1213 * Added some new modes to `vidwhacker'.
1214 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
1215 can draw on arbitrary externally-provided windows.
1216 * Synched with xlockmore 4.11a01.
1217 * Added `flow' hack.
1218 * Added `atlantis' GL hack.
1219 * Renamed `puzzle' hack to `jigsaw', since xlock already
1220 had a different mode called `puzzle'.
1221 * Made it self-configure properly when Motif 2.1.0 is
1222 being used (requires -lXp now, sigh...)
1223 Changes since 2.15: * Made `flag' able to do XPM images.
1224 * New look for the xscreensaver logo (`xroger').
1225 * Fixed compilation error on Suns with adjunct passwords.
1226 * Got multi-architecture builds working again.
1227 * Some configure tweaks for building on HPUX and Solaris.
1228 * Fixed bug in decayscreen.
1229 * Fixed typo in passwd.c.
1230 * Made `cynosure' not die when colormap is full.
1231 Changes since 2.14: * Added `cynosure' hack.
1232 * Added `moire2' hack.
1233 * Tweaked `erase.c' some more.
1234 * Made unfading a bit smoother.
1235 * Added `vidwhacker' hack (not installed by default.)
1236 * Added `stairs' hack.
1237 * Split `escher' into `cage' and `moebius', as per
1239 * Changed subprocess handling to use sigaction() instead
1240 of signal() if it's available (this is necessary for
1241 SCO but should work fine on other systems too.)
1242 * Various other tweaks.
1243 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
1244 * Put in some kludges to work around a LessTif bug.
1245 * XScreenSaver is known to work with LessTif 0.82 now.
1246 * Made fading work on high-end SGI video hardware.
1247 * Fixed another SGI-specific bug in screen grabbing;
1248 will the madness never cease?
1249 * Fixed another crash in `xlyap'.
1250 Changes since 2.12: * Made `decayscreen' do directions other than down.
1251 * Improved `puzzle'.
1252 * Fixed a crash in `xlyap'.
1253 * Added CDE info to the man page, removed `cde.txt'.
1254 * Configure tweaks for Zippy.
1255 * Turned off the signal handling in `bubbles' because
1256 it was sometimes failing to die.
1257 * Added `hacks/xscreensaver-sgigl.c' to make it possible
1258 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
1259 with xscreensaver. Finally!
1260 * Fixed a buffer overrun in the locking code that some
1261 wily, malicious cracker must have slipped in.
1262 * Disabled Motif drag-and-drool in the dialog box
1263 buttons, since it's broken in some old versions of
1265 Changes since 2.11: * Added `README.debugging'.
1266 * Added `puzzle' hack.
1267 * Added `xlyap' hack.
1268 * Added `default-n' as a visual name, so that one can
1269 have -install on by default, but turn it off for
1270 certain poorly-behaved hacks (like xv.)
1271 * Added support for grabbing frames of external video
1272 (on SGI) to the screen-grabbing hacks (decayscreen,
1273 slidescreen, slip, blitspin, and puzzle.)
1274 * Improved look of tiles in `slidescreen'; fixed its
1275 color allocation problem.
1276 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
1277 * Added `lissie', `mountain', `triangle', `worm',
1278 `rotor', and `ant' from xlockmore.
1279 * Updated `sierpinski', `galaxy', and `lisa'.
1280 * Thickened the lines in `braid' and `lmorph'.
1281 * Updated VMS makefiles.
1282 * Renamed `fract' to `vines'.
1283 * Added `xjack' hack.
1284 * Made a few more hacks use erase.c, and added a few
1286 * Fixed compilation problem with Sun's version of OpenGL.
1287 * Added ability to use sigaction() instead of signal()
1288 to work around a SCO kernel bug.
1289 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
1290 * Configure tweaks for *BSD.
1291 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
1292 * New version of `maze' with some new algorithms.
1293 * New colorized version of `rocks'.
1294 * Fixed a bug in qix on 64-bit machines.
1295 * Fixed a bug in the -time option.
1296 * Fixed a bug in configure related to LessTif.
1297 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
1298 * Made multi-architecture ($VPATH) builds work properly.
1299 * Merged new GL stuff from xlockmore (rubik, morph3d.)
1300 * Fixed intermittent crashes in `imsmap' and `munch'.
1301 * Added `fadeplot' hack from xlockmore.
1302 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
1303 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
1304 configure to detect the extra-random -Xss library.
1305 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
1306 * Fixed low-color behavior of `goop', `pyro', `starfish',
1307 `greynetic', `flame', `halo', and `moire'.
1308 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
1309 * Added `munch' hack.
1310 * Added basic dependencies to the Makefile.in files.
1311 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
1312 * Made the yow/fortune program be a configure option.
1313 * Various configure tweaks.
1314 Changes since 2.00: * Added `goop' and `starfish' hacks.
1315 * Added colomap cycling to `halo'.
1316 * Made `attraction' use the new colormap allocator.
1317 * Added better $PATH diagnostics.
1318 * There was a bug in frand! Color selection should be
1320 Changes since 1.34: * Converted to use `configure' instead of `imake'.
1321 * ANSI C is now required.
1322 * Added Kerberos locking support, from Nat Lanza.
1323 * Made the stderr text use overlay planes, if possible.
1324 * Reworked the xlockmore compatibility stuff again.
1325 * Added `gears', `superquadrics', `escher', `pipes',
1326 and `sproingies' hacks (depend on OpenGL.)
1327 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
1328 Changes since 1.32: * Made it work with multi-headed displays.
1329 * Generalized sub-process management (Unix sucks!)
1330 * Added interactive mouse frobbing to Julia.
1331 * Added (untested) support for HPUX shadow passwords.
1332 * Made normal non-shadow passwords be checked if the
1333 shadow passwords aren't accessible for some reason.
1334 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
1335 made it possible to specify the desired visual on a
1337 * Cleaned up / restructured the driver: no more globals.
1338 * Made the Motif and Athena dialogs share more code.
1339 * Probably fixed some Athena colormap-installation bugs.
1340 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
1341 * Fixed divide-by-zero in bright random colormaps.
1342 * Added an improved version of xlock's `flag' hack.
1343 * Made unfading work better, and not flicker on SGIs.
1344 * Added `sphere', `forest', `lisa' hacks from xlockmore.
1345 * Added (untested) support for SunOS Adjunct passwords.
1346 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
1347 * Cleaned up xlockmore compatibility layer.
1348 * Made `blitspin' able to grab an image off the screen.
1349 * Ported `swirl' and `bouboule' hacks from xlockmore.
1350 * Made the driver more careful about not leaving bits on
1351 the screen, or allowing other windows to raise
1352 themselves: it now re-blanks the screen every so often.
1353 * Added `-time' option to `xscreensaver-command'.
1354 * Improved SGI screen-grabbing some more: now it can grab
1355 TrueColor screens into PseudoColor windows and have the
1356 colors still come out semi-reasonably.
1357 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
1358 SGIs when windows of different visuals are present, by
1359 using the XReadDisplay() extension to get a true 24-bit
1360 image out of the frame buffer.
1361 * Made `noseguy' be in color, if compiled with XPM.
1362 * Ported `braid', `drift', `fract', `galaxy', `grav',
1363 `ifs', `julia', `laser', `lightning', `penrose',
1364 `sierpinski', `slip', `spiral', and `strange' hacks
1366 * Merged `hopalong' hack with a more recent version.
1368 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
1369 * Merged in support for non-Motif locking and demo mode.
1370 * Made `blitspin' and `bubbles' work in TrueColor.
1371 * Fixed a stupid bug I introduced in `imsmap'.
1372 * Added `poly' and `gravity' options to `qix'.
1373 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
1374 * Made `fade' and `unfade' work on 8-bit SGIs.
1375 * Made the dialog boxes more Motify.
1376 * Added `bubbles' hack.
1377 Changes since 1.25: * Added `lmorph' hack.
1378 * Added viscosity and mouse-control to attraction.
1379 * Fixed possible bad color choices in qix and attraction.
1380 * Added ramp-mode to halo.
1381 * Added a new RNG, which is faster and more portable
1382 than using the RNG in libc.
1383 * Made locking work on SCO.
1384 * Various other minor tweaks that I don't remember.
1385 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
1386 and present them on the screensaver window itself.
1387 * Made demo mode work correctly with non-default visuals
1388 and color maps, instead of always using the defaults.
1389 * Added -visual argument to all included screenhacks.
1390 * Support for the R6 MIT-SCREEN-SAVER server extension.
1391 * Made the demo mode list scroll properly.
1392 * Added `pedal' hack.
1393 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
1394 decayscreen, and xroger. Fixed apparent conservation-
1395 of-mass problem in pyro; made the shrapnel round.
1396 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
1397 Changes since 1.21: * Minor tweaks for X11R6.
1398 * Fixes for non-default visuals.
1399 Changes since 1.20: * Fixed bug in color blitspin; added default image.
1400 * Added diagnostics to noseguy. Fixed off-by-one
1401 error in flame. Added some missing casts.
1402 Changes since 1.18: * Added `flame' hack.
1403 * Fixed a minor Motif dialog text field bug.
1404 * Fixed yet another XPointer-not-defined-in-R4 bug.
1405 Changes since 1.17: * Added support for shadow password files.
1406 * Fixed some Motif-related locking bugs.
1407 * Added diagnostics when locking is disabled.
1408 * Made blitspin able to use the XPM library.
1409 * Added `decayscreen' hack.
1410 Changes since 1.16: * Added `halo' hack.
1411 Changes since 1.15: * Portability fixes.
1412 Changes since 1.14: * Broke the driver up into more source files.
1413 * Moved the hacks into their own directory.
1414 * Made all `time' parameters accept the 00:00:00 syntax,
1415 so that even the parameters which are normally read as
1416 minutes can be specified in seconds.
1417 * Added colormap cycling to `imsmap'.
1418 * Made hyper work with K&R compilers.
1419 Changes since 1.13: * Added `orbit' option to `attraction' hack.
1420 * Added `lock-timeout' option.
1421 * Cleaned up options of `maze' hack.
1422 Changes since 1.8: * Added demo mode, and locking.
1423 * Added `maze' hack.
1424 * Added `norotate' option to `rocks' hack.
1425 Changes since 1.4: * Works when run from XDM before anyone logs in.
1427 * Can use `xv' as a slideshow without using up colormap
1428 entries while the screen is not blanked.
1429 * Fixed a BadDrawable error in non-XIdle mode.
1430 * Added `blitspin' and `imsmap'.
1431 Changes since 1.0: * Current list of included hacks is now: qix, helix,
1432 rorschach, attraction, greynetic, rocks, pyro,
1433 hopalong, and noseguy.
projects / xscreensaver / blob