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 5.22: * New hack, `geodesic'.
42 * iOS and OSX: huge XCopyArea performance improvements.
43 * More heuristics for using RSS feeds as image sources.
44 * Improved Wikipedia parser.
45 * Updated `webcollage' for recent Flickr changes.
46 * Added Android to `bsod'.
47 * OSX: Added a real installer.
48 * iOS and OSX: fixed a font-metrics bug.
49 * iOS: Fixed aspect ratio bug in non-rotating apps when
50 launched in landscape mode.
51 * Made `quasicrystal' work on weak graphics cards.
53 * Better compression on icons, plists and XML files:
54 smaller distribution and installation footprint.
55 * Reverted that DEACTIVATE change. Bad idea.
56 * `Phosphor' now supports amber as well as green.
57 Changes since 5.21: * New hacks, `kaleidocycle', `quasicrystal',
58 `unknownpleasures' and `hexadrop'.
59 * Performance improvements for `interference'.
60 * Fixed possible crashes in `apple2', `maze', `pacman',
61 `polyominoes', `fireworkx', `engine'.
62 * Fix for `bumps' in 64 bit.
63 * Fixed preferences crash on old iOS 5 devices.
64 * Fixed "Shake to Randomize"; display name of saver.
65 * Fixed weirdness with "Frame Rate" sliders on iOS.
66 * Fixed rotation problems with `pacman', `decayscreen'.
67 * Better dragging in `fluidballs'.
68 * Ignore rotation in hacks that don't benefit from it.
69 * Ignore DEACTIVATE messages when locked, instead of
70 popping up the password dialog box.
71 Changes since 5.20: * Changed default text source from Twitter to Wikipedia,
72 since Twitter now requires a login to get any feeds.
73 * New version of `fireworkx'.
74 * Minor fixes to `distort', `fontglide', `xmatrix'.
75 * New MacOS crash in `bsod'.
76 * New mode in `lcdscrub'.
77 Changes since 5.19: * Support for iPhone 5 screen size.
78 * Fixed modifier key handing in Apple2.app and
79 Phosphor.app on MacOS.
80 * Various minor bug fixes.
81 Changes since 5.18: * MacOS 10.8.0 compatibility.
82 * iOS performance improvements.
83 Changes since 5.17: * iOS responds to shake gestures to randomize.
84 * iOS can load images from your Photo Library.
85 * iOS has clickable Wikipedia links in Settings panels.
86 * Made `pipes' be ridiculously less efficient, but spin.
87 * Added better mouse control to `rubik', `cube21',
88 `crackberg', and `julia'.
89 * Cosmetic improvements to `queens' and `endgame'.
90 * `sonar' can now ping local subnet on DHCP.
91 * Most savers now resize/rotate properly.
93 Changes since 5.16: * More iOS tweaks.
94 * Fixed some compilation problems.
95 * Enlarged the texture image for `lament'.
96 Changes since 5.15: * Ported to iPhone and iPad.
97 * XInput devices now also ignore small mouse motions.
98 * Loading images via RSS feeds is much improved.
99 * Various minor fixes.
100 Changes since 5.14: * New hacks, `hilbert', `companioncube' and `tronbit'.
101 * Image-manipulating hacks can now load from RSS or Atom
102 feeds: `imageDirectory' may contain a URL.
103 * Updated `webcollage' for recent search engine changes.
104 * `phosphor' and `apple2' can now be run as standalone
105 terminal emulator applications on MacOS.
106 * `photopile' sped up.
107 * New molecule in `molecule'.
108 * "Upgraded" to XCode 4.0, which means that MacOS 10.4
109 PPC builds are impossible, and Intel is now required.
110 * Turned on LC_CTYPE on Linux; maybe Japanese password
112 Changes since 5.13: * Fixed crash in Blank Only Mode when DPMS disabled.
113 * Added "Quick Power-off in Blank Only Mode" option.
115 Changes since 5.12: * Optionally enabled full-scene OpenGL antialiasing.
116 Set the resource `*multiSample' to true if doing so
117 doesn't kill performance with your video hardware.
118 * New version of `glhanoi'.
119 * Image-loading hacks that display the file name now also
120 display the sub-directory (xscreensaver-getimage now
121 returns relative paths under imageDirectory).
122 * Passwords that contain UTF-8 non-Latin1 chars are now
124 * Numerous minor stability fixes.
125 Changes since 5.11: * Big speed improvement on OSX for heavy XCopyArea
126 users (`xmatrix', `moire2', `phosphor', etc.)
127 * Plugged a bad OSX-only Pixmap leak.
128 * Kludged around the OSX pty bug that caused text to
129 be truncated in phosphor, starwars, apple2, etc.
130 * New molecule in `molecule'.
131 * `glhanoi' now supports an arbitrary number of poles.
132 * Turned on "New Login" button by default.
133 * Added support for XInput-style alternate input devices.
134 Changes since 5.10: * New versions of `photopile', `strange'.
135 * Worked around MacOS 10.6 garbage collector bug that
136 caused the screen saver process to become enormous.
137 * Fixed flicker in `pipes', `cubestorm', and `noof'.
138 * Fixed EXIF rotation on MacOS 10.6.
139 * Fixed desktop-grabbing when screen locked on MacOS.
140 * Minor fixes to `circuit', `polyhedra', `tangram',
141 `gears', `pinion', `substrate', `xanalogtv'.
142 * Fixed some leaks in `xanalogtv' and `apple2'.
143 * Better seeding of the RNG.
144 Changes since 5.09: * Fixed some crashes and color problems on MacOS 10.6.
145 * Retired `hypercube' and `hyperball', which are
146 redundant with `polytopes'.
147 Changes since 5.08: * Ported to MacOS 10.6, including various 64-bit fixes.
148 * New hack, `rubikblocks'.
149 * Fixed another potential RANDR crash.
150 * Use correct proxy server on MacOS.
151 * `molecule' now correctly displays PDB 3.2 files.
152 * Updates to `mirrorblob', `glhanoi', and `sonar'.
153 * Rewritten version of `klein' hack.
154 * New hack, `surfaces', incorporating objects from old
155 `klein' hack, plus new ones.
156 * Merged `juggle' and `juggler3d' hacks.
157 * Fixed compilation under gcc 4.4.0 (strict aliasing).
158 * Fixed intermittent failure in `xscreensaver-command'.
159 Changes since 5.07: * New hack, `photopile'.
160 * Rewrote `sonar' and `jigsaw' as OpenGL programs.
161 * Minor tweaks to `maze', `m6502', `hypnowheel', and
163 * Savers that load images now obey EXIF rotation tags.
164 * Arrgh, more RANDR noise! Fixes this time for rotated
165 screens, and for systems where RANDR lies and says the
167 * When the password dialog has timed out or been
168 cancelled, don't pop it right back up a second time.
169 * Password timeouts/cancels don't count as
171 * Retired some of the older, less interesting savers:
172 say goodbye to `bubbles', `critical', `flag', `forest',
173 `glforestfire', `lmorph', `laser', `lightning', `lisa',
174 `lissie', `rotor', `sphere', `spiral', `t3d', `vines',
175 `whirlygig', and `worm'.
176 * Merged `munch' and `mismunch'.
177 * Updated `webcollage' to use twitpic.com as well.
178 Changes since 5.06: * Xinerama/RANDR tweaks for old-style multi-screen.
179 * Added bumpy skin and cel shading to `skytentacles'.
180 * `flipflop' can load images onto the tiles.
181 * Fixed the bouncing ball in `stairs'.
182 * Added the missing Utah Teapotahedron to `polyhedra'.
183 * `blitspin' works with color images on MacOS now.
184 * Added transparency to `stonerview'.
185 * Improved layout of the preferences dialogs: they
186 should all now be usable even on ridiculously tiny
188 * MacOS preferences text fields now prevent you from
189 entering numbers that are out of range.
190 * Added "Reset to Defaults" button on X11.
191 * Added relevant Wikipedia links to many of the screen
193 * All hacks support the `-fps' option, not just GL ones.
194 * The `-fps' option now shows CPU load.
195 Changes since 5.05: * Xinerama/RANDR fixes: this time for sure. It should
196 now work to add/remove monitors or resize screens at
198 * New hack, `skytentacles'.
199 * New version of `gleidescope'.
200 * Added the `-log' option to the xscreensaver daemon,
201 since a truly shocking number of Linux users seem to
202 have no idea how to redirect output to a file.
203 * Added `-duration' arg to most image-loading hacks,
204 so that they pick a new image every few minutes.
205 * Added an ATM crash to `bsod'.
206 Changes since 5.04: * New hacks, `cubicgrid', `hypnowheel', and
207 `lcdscrub' (which isn't really a screen saver).
208 * Updates to `m6502' and `gears'.
209 * Fixed double-buffering problems in `cubestorm' and
211 * Better handling of horizontal scroll wheels.
212 * Attempt to work around latest Xinerama braindamage:
213 if the server reports overlapping screens, use the
214 largest non-overlapping rectangles available.
215 * Don't warning about receipt of bogus ClientMessages,
216 since Gnome's just never going to stop sending those.
217 * Worked around MacOS 10.5 perl bug that caused the
218 text-displaying hacks to fail on some systems.
219 * Hopefully fixed font-related System Preferences crashes
221 * The recent PAM changes broke the "Caps Lock" warning
222 in the password dialog, the failed login warnings, and
223 syslogging. Fixed all that.
224 Changes since 5.03: * Fixed a possible crash in the unlock dialog (more
225 fallout from the recent PAM changes...)
226 * New hacks, `moebiusgears', `abstractile', and
228 * Rewrote `gears' to use better (involute) gear models,
229 and to be more random.
230 * Minor updates to `cwaves', `voronoi', `deco',
231 `glcells', `rd-bomb', `fireworkx' and `webcollage'.
232 * `pong' can now display the current time as the score.
233 * `xmatrix -mode pipe' works better.
234 * Minor tweaks for compilation on MacOS 10.5.0.
235 Changes since 5.02: * New hacks, `cwaves', `glcells', `m6502', and `voronoi'.
236 * Minor fixes to `bsod'.
237 * Fixed possible crash with PAM USB-dongle auth.
238 * Updated `webcollage' to track recent Google Images
240 Changes since 5.01: * Reworked PAM code to support fingerprint readers, etc.
241 * Ported 'webcollage' to MacOS.
242 * Added MacOS 10.2 and 10.3 kernel panics to `bsod'.
243 * Fixed a Xinerama crash when changing the screen count.
244 * New blobbier `mirrorblob'.
245 * Minor updates to `lisa', `bsod', `ifs', `hypertorus',
246 `polytopes', `circuit', `endgame', `crackberg',
247 `flipflop', `flipscreen3d', `fliptext', and `carousel'.
248 * Enabled multi-threaded OpenGL on MacOS.
249 Changes since 5.00: * Backed out recent locale-related changes, since they
250 broke far more things than they fixed.
251 * Fail gracefully with ridiculously small window sizes.
252 * `xflame' and `flag' ignore bitmap option on MacOS.
253 * `speedmine' prefs work on MacOS.
254 * Better explosions in `boxed'.
255 * More dynamic motion in `sproingies'.
256 * More options in `flipflop'.
257 * Minor updates to `topblock'.
258 * Various other minor fixes.
259 Changes since 4.24: * Ported to MacOS X! (10.4.0 or newer)
260 * API change: instead of providing a single screenhack()
261 function that does not return, screen savers using the
262 screenhack.h framework must now provide "init" and
263 "draw one frame" functions instead. All bundled savers
264 have been updated; third-party patches will need work.
265 * All image-loading happens asynchronously.
266 * xscreensaver-getimage-file caches the contents of the
267 image directory for a few hours, so consecutive runs
268 won't have to re-list the whole directory tree.
269 * New hacks, `topblock' and `glschool'.
270 * Removed `xteevee' (superceded by `xanalogtv').
271 * Added variable-sized puzzle pieces to `jigsaw'.
272 * Changes to the defaults and command-line options of
273 many hacks to make the .xml files more consistent.
274 * Reap zombies in `glslideshow' and `carousel'.
275 * `sonar' works without setuid on MacOS (dgram icmp).
276 * `xmatrix -mode pipe' displays the text of a subprocess.
277 * `endgame' has higher resolution chess-piece models.
278 * `webcollage' takes a -directory option to get images
279 from a local directory.
280 * The RPM spec file no longer auto-restarts xscreensaver
281 when a new version is installed. Restart it manually.
282 Changes since 4.23: * New versions of `cube21', `glsnake', `celtic'.
283 * Backed out a DPMS-related patch that cause desktop
284 flickering with some X servers.
285 * Fixed startup crash in getgroups() when running setuid.
286 * Default to not displaying stderr on the saver window.
287 * Fixed bad free() in "Documentation" button.
288 * Don't try to run hacks that aren't installed.
289 * Minor fixes to various XML config files and man pages.
290 Changes since 4.22: * New hacks, `glhanoi', `cube21', `timetunnel',
291 `juggler3d', and `celtic'.
292 * New versions of `tangram', `webcollage', `hypertorus',
293 `polytopes', and `ripples'.
294 * `sonar' is now quiet about unresolvable hosts.
295 * Minor corrections to BASIC code in `apple2'.
296 * xscreensaver-demo now provides an RPM clue when none
297 of the hacks seem to be installed.
298 * Don't install `ant' by default, since there is some
299 Java tool of that name, which was causing confusion.
300 And also it's boring.
301 * Made screen grabbing work again on MacOS 10.4.2.
302 * No longer prints bogus warnings about ClientMessages
303 intended for the window manager.
304 * Ignore unprintable characters in passwd entry field.
305 * Fixed yet another cross-host-display image-loading
307 * `xscreensaver-command -watch' and `-time' now work
309 Changes since 4.21: * Fixed a bug in the new mouse-motion code that caused
310 the screen to never blank on multi-head non-Xinerama
312 * New hacks, `interaggregate', `antmaze', `tangram',
314 * Minor tweaks to `fiberlamp', `ifs', `slidescreen',
315 `zoom', `sonar', `fireworkx', `whirlwindwarp',
316 `bubble3d', and `rd-bomb'.
317 * Added motion blur to `blinkbox'.
318 * `bsod' now includes Longhorn's "RSOD", and OS/2.
319 * Fixed `-wireframe' usage in most hacks and man pages.
320 Changes since 4.20: * New hack: `fliptext'.
321 * Changed default configure installation directories:
322 /usr/bin/ for xscreensaver, etc.;
323 /usr/libexec/xscreensaver/ for hacks;
324 /usr/share/xscreensaver/config/ for xml files.
325 * All the text-manipulating screen savers can have their
326 text source configured via `xscreensaver-demo' now.
327 * xscreensaver.spec now builds three RPMs:
328 base (no hacks); extras (2d hacks); and gl-extras.
329 * Added `-program' and `-front' option to `gltext'.
330 * Added `-shells' to `molecule'.
331 * Fixed text-alpha glitch in `carousel'.
332 * New `pacman': the ghosts can be killed now.
333 * Fixed a bug in screen-grabbing GL hacks where images
334 would be tiled instead of scaled on machines that
335 can't do large textures.
336 * `webcollage' can hit Flickr now.
337 * New (rewritten) implementation of `ifs'.
338 * The unlock dialog can be made to have a "New Login"
339 button that will run `gdmflexiserver'. Experimental!
340 * Fixed non-ASCII display bug in `starwars'.
341 * Configure finds a default for imageDirectory.
342 * "xscreensaver-command -lock" now works even if
343 in "screensaver disabled" mode.
344 * If a bad password is typed while CapsLock is on, the
345 unlock dialog says "CapsLock?" instead of "Sorry".
346 * Mouse motion only counts as activity if the mouse moved
347 more than 10 pixels (so the screen won't unblank every
348 time you bump your desk.)
349 * New mode option "random-same": if you have multiple
350 monitors, this will run the *same* randomly chosen
351 hack on each screen, instead of different ones on each.
352 Changes since 4.19: * New hacks, `fiberlamp', `boing', `boxfit', and
354 * Rewrote `glslideshow' again: should be faster now.
355 * Sped up loading of images in GL programs.
356 * `starwars' uses texture-mapped fonts now.
357 * New `bsod' modes: tru64, hppa, and nvidia.
358 * Updates to `webcollage', `juggle', `pinion',
359 `fireworkx', `sonar', `extrusion', `substrate', and
361 Changes since 4.18: * New hacks, `substrate', `intermomentary', `fireworkx',
363 * New version of `flow'.
364 * Made /proc/interrupts work again on Linux 2.6.
365 * Made `analogtv' not hog the CPU.
366 * Made analogtv-based hacks work properly on PPC/ARM.
367 * Fixed a bad memory leak in `piecewise'.
368 * Minor updates to `sonar', `molecule', `glmatrix',
369 `galaxy', and `webcollage'.
370 * Removed support for GTK 1.x (everyone uses 2.x now.)
371 Changes since 4.17: * Oops, pay no attention to the man behind the curtain.
372 Changes since 4.16: * New hacks, `anemotaxis' and `memscroller'.
373 * Fixed a bad bug that caused `vidwhacker' to never die.
374 * Fixed normals and lighting in `polyhedra'.
375 * Don't reuse the window when changing hacks (to work
376 around bugs in some GL implementations.)
377 * Made `xscreensaver-getimage-file' skip thumbnail-sized
379 * Fixed endian problem in `barcode' on non-x86.
380 * Updates to `webcollage', `apple2', `fuzzyflakes',
381 `atunnel', and `pacman'.
382 * Timing tweaks to `bubble3d', `bouncingcow', `engine',
383 `gltext', `lavalite', `molecule', `spotlight',
384 `sballs', `boxed', `blinkbox', and `circuit'.
385 * Configure updates for Fedora core 2 / xorg 6.7.0.
386 * Compile without warnings under gcc 3.3.3.
387 * I give up: don't blank or lock the screen if we can't
388 get a keyboard grab. In that case, both choices are
390 Changes since 4.15: * New hacks, `polyhedra', `fuzzyflakes', `antinspect',
392 * Minor updates to `webcollage', `bsod', `endgame',
393 `antspotlight', `xmatrix', and `glmatrix'.
394 * Added support for the RANDR (Resize and Rotate)
395 extension to detect when the size of the desktop has
396 been changed while xscreensaver is already running.
397 * Possibly-futile attempt to work around "rdesktop"
399 * Made `xscreensaver-getimage -file' still work even if
400 imageDirectory is unset.
401 * Convert Latin1 to ASCII in `starwars' and `phosphor'
402 (since the GLUT font only has ASCII glyphs.)
403 * Fixed randomization in `noof'.
404 * Added "GetViewPortIsFullOfLies" preference to work
405 around longstanding XFree86 bug #421.
406 * Made `sonar' subnet pinging work properly on bigendian
407 machines (e.g., PPC.)
408 Changes since 4.14: * New hacks, `wormhole', `mismunch', `noof', and
410 * `phosphor' and `apple2' include vt100 emulators now:
411 this means you can do "phosphor -program top", or
412 can use either program as an xterm replacement:
413 "apple2 -text -fast -program 'xemacs -nw'".
414 * `analogtv' (and related) fill the screen better.
415 * The '-gradient' option works in `atlantis' now.
416 * Minor updates to `blinkbox', `queens', `endgame',
417 `glmatrix', `mirrorblob', `blocktube', and `molecule'.
418 * Integrated SuSE's "external passwd helper" support.
419 * Marginally better /tmp handling in various programs.
420 * Updated config defaults for xplanet 1.0.3.
422 Changes since 4.13: * New hacks, `fontglide', `apple2', `xanalogtv', `pong',
423 `gleidescope', `mirrorblob', and `blinkbox'.
424 * New version of `glsnake' (with many more models.)
425 * Another Windows crash in `bsod'; also HVX/GCOS6/TPS6.
426 * New version of `endgame'.
427 * Screen grabbing works on MacOS X.
428 * Various minor fixes.
429 Changes since 4.12: * On Xinerama systems, xscreensaver now runs one hack on
430 each monitor (just like in "real" multi-head mode)
431 instead of running one hack stretching across all the
432 screens. Note that for this to work with any 3rd party
433 screensavers, they must update their "vroot.h" file.
434 * `webcollage' and `vidwhacker' display images using
435 `xscreensaver-getimage' now.
436 * Added `ljlatest' script for use with `starwars' and
438 Changes since 4.11: * New GL hacks, `flipflop', `antspotlight', and
440 * Added VMS to `bsod'.
441 * Compile without warnings in "gcc -pedantic".
442 * Updates to `webcollage' and `queens'.
443 * Fixed a bug that could cause PAM to hang.
444 Changes since 4.10: * New hacks, `hypertorus', `cubestorm', `glknots',
445 `blocktube', and `glmatrix'.
446 * Updates to `cloudlife', `engine', `xmatrix', and
448 * Rewrote `glslideshow': it should work on somewhat
449 wimpier video cards now.
450 * Various portability tweaks.
451 Changes since 4.09: * New hacks, `cloudlife' and `klein'.
452 * Added Apple ][+, HPUX, and OS/390 sessions to `bsod'.
453 * Added some Matrix Reloaded text to `xmatrix'.
454 * Updates to `webcollage', `eruption', `jigglypuff',
455 `metaballs', and `endgame'.
456 * Completely ignore the `memoryLimit' setting now,
457 since it was still causing people GL grief.
458 * Various minor fixes.
459 Changes since 4.08: * New hacks, `flyingtoasters', `bouncingcow',
460 `jigglypuff', and `glslideshow'.
461 * More models in `engine'.
462 * Rewrote `xscreensaver-getimage' to remove reliance on
463 external image loaders (xv, chbg, xloadimage, etc.)
464 and to reduce flicker when loading files.
465 * Made `gflux' and `flipscreen3d' be mouse-spinnable.
466 Changes since 4.07: * New hacks, `atunnels' and `piecewise'.
467 * Physics improvement in `fluidballs'.
468 * Various fixes for XDarwin systems (X11 on MacOS X.)
469 * Added -clock option to `barcode'.
470 * Minor fixes to `endgame', `flurry', `flipscreen3d',
472 Changes since 4.06: * New hacks, `flurry', `metaballs', `eruption',
473 `popsquares', and `barcode'.
474 * Minor updates to `maze' for high density mazes.
475 * Added double buffering to `fluidballs' and `whirlygig'.
476 * Bug fixes for running xscreensaver to a remote XFree86
477 display (which nobody would ever do...)
478 * Updated `webcollage' (faster Alta Vista searching.)
479 * Updated `glplanet' so the sun sets in the west.
480 * Updated `sproingies' with smooth, unsegmented surfaces.
481 * Fixed Perl version-sensitivity in
482 `xscreensaver-getimage-file'.
483 * Fixed GTK2 scrolling bug in `xscreensaver-demo'.
484 Changes since 4.05: * New hack, `glblur' (disabled by default, since it
485 requires fast OpenGL texture support.)
486 * New hack, `halftone'.
487 * Updates to `endgame', `queens', `bumps', `glplanet',
488 `engine', and `circuit'.
489 * New version of `menger' that uses far fewer polygons.
490 * Fixed minor bug in `critical' that could cause some
491 bogus X servers to crash.
492 * Better labels in `molecule': the labels now appear to
493 be attached to the atoms, instead of floating in front
495 * Fixed bug that could rarely cause GL hacks to fail to
496 double-buffer (causing intermittent flickering.)
497 * Fixed a relative-URL-parsing bug in `webcollage'.
498 * Fixed a bug that (sometimes) caused the window manager
499 close box to kill `xscreensaver-demo' with a crash
500 instead of a graceful exit.
501 * Updated xscreensaver.pam to the Red Hat 7.3 way.
502 * More Gnome2-related configure crap.
503 * Updated to latest `config.guess' and `config.sub'.
504 * Fixed occasional core dump in `distort'.
505 * Added a Linux fsck failure and kernel panic to `bsod'.
506 * Added MacOS X kernel panic to `bsod'.
507 * Fixed a bug in `bsod' (all bsod bugs are ironic.)
508 * Fixed a bug that caused `xscreensaver-gl-helper' to
509 print a nonsense visual ID with some versions of
510 `printf': this could cause GL programs to display
511 incorrectly (e.g., flickery.)
512 Changes since 4.04: * More `configure' tweaks to try and get things working
513 on systems that both Gtk 1.x and 2.x installed.
514 * New hack, `endgame'.
515 * Minor updates to `gltext'.
516 Changes since 4.03: * Support for GTK 2.x / GNOME 2.x.
517 * The `configure' script will now use `pkg-config' if
518 you have it, in preference to `gtk-config', etc.
519 * New hacks, `lavalite', `queens', and `anemone'.
520 * Minor updates to `spheremonics', `gltext', `xmatrix'.
521 * You can use the mouse to manually spin most of the GL
522 hacks now (when they are displaying in a window.)
523 * Fixed a bug in `webcollage' (due to recent Alta Vista
524 url changes) that was causing it to try and load
525 incorrect image URLs.
526 * Made `xscreensaver-getimage' use gdk_pixbuf if it is
527 available: this means that those hacks that load images
528 will no longer rely on "xv", "xloadimage", etc. This
529 will close a race condition that could sometimes cause
530 your desktop background to be changed; and also makes
531 it possible for those programs to operate on image
532 files when running in windowed mode.
533 * `webcollage' can now be used in conjunction with
534 `driftnet' to display images snooped from your local
535 ethernet instead of obtained from search engines.
536 * Added man pages for all the hacks that didn't have
538 Changes since 4.02: * New hack, `spheremonics'.
539 * Minor updates to `webcollage', `cage', `moebius',
540 `morph3d', `boxed', `circuit', and `helix'.
541 * `pulsar' and `extrusion' can now load texture JPEGs.
542 * `rubik' now does non-square cubes.
543 * `fluidballs' now does various sizes of balls.
544 * `menger' and `sierpinski3d' now also show polygon
546 * `molecule' displays real subscripts in the formulae.
547 * GTK internationalization/localization support.
548 * Better detection of the various versions of libxml.
549 * Upgraded to autoconf 2.53 (from 2.13.)
550 Changes since 4.01: * Plugged a few minor leaks in `xscreensaver' and
552 * New hacks, `cubenetic' and `fluidballs'.
554 * Fixed sphere projection error in `glplanet'; installed
555 a better image of earth.
556 * Added Win2K and MacOS 1 crashes to `bsod'.
557 * Put back previous (better) version of `forest' that
558 was accidentially downgraded in the last release.
559 * New version of `bumps'.
560 * Made FPS computation in GL hacks more efficient: it
561 will influence the results less, thus resulting in
562 higher (but more accurate) reported frame rates.
563 Changes since 4.00: * New hacks: `twang', `glsnake', `boxed', `sballs',
565 * New hacks `apollonian', `euler2d', `juggle',
566 `polyominoes' and `thornbird', from xlockmore.
567 * Merged recent xlockmore changes into `ant', `braid',
568 `demon', `discrete', `drift', `fadeplot', `forest',
569 `grav', `hopalong', `ifs', `laser', `lightning',
570 `lisa', `lissie', `loop', `mountain', `penrose',
571 `rotor', `sierpinski', `slip', `sphere', `spiral',
572 `strange', and `vines'.
573 * Fixed the `gltext' bug that sometimes caused
574 horizontal lines to vanish again. This time for sure.
575 * Sped up `webcollage' by adding a C helper program to
576 replace the PPM pipeline. It also pastes images
577 semi-transparently now.
578 * Added support for the gdk_pixbuf library: if this lib
579 is available, then `blitspin', `xflame', and `flag'
580 can load GIF, JPEG, and PNG images in addition to XPM
582 * Fixed a rare race condition where the desktop-grabbing
583 hacks could sometimes leave the screen wedged, if the
584 user moved the mouse exactly when they were grabbing
585 the screen image (it would un-wedge the next time the
586 saver timed out or was activated.)
587 * Fixed incorrect colors in the screen-grabbing GL hacks
588 (`gflux' and `flipscreen3d'.)
589 * Made SIGHUP restart the daemon process (though using
590 `xscreensaver-command -restart' is still the preferred
592 * Tweaks to `xspirograph'.
593 * Minor configure and portability tweaks.
594 Changes since 3.34: * Redesigned `xscreensaver-demo' GUI: it now includes
595 small-preview and per-hack configuration dialogs.
596 * Added three new modes of operation: `One Screen Saver',
597 `Blank Screen', and `Don't Blank' (in addition to the
598 historical `Random Screen Saver').
599 * Configure now defaults to installing the hacks in
600 <prefix>/lib/xscreensaver/ instead of <prefix>/bin/.
601 (Most distros already did it this way.)
602 * New GL hacks, `menger', `engine', `flipscreen3d'.
603 * Made `sierpinski3d' be more colorful.
604 * New versions of `xmatrix' and `nerverot'.
605 * Fixed a bug in `starwars' that made the font be drawn
606 with thin lines in -root mode.
607 * Fixed a bad colormap bug in `crystal' that could make
608 *subsequent* hacks malfunction!
609 * Made `gflux' able to grab screen images (`-mode grab').
610 * Updated `webcollage' for recent search engine changes.
611 * Removed most command-line options to `xscreensaver':
612 just edit the ~/.xscreensaver file instead.
613 * Improved behavior on multi-screen and Xinerama systems:
614 the mouse now stays on the screen where the user left
615 it, and the password and splash dialogs always appear
616 on the screen that has the mouse.
617 * Made the splash dialog use more Gtk-like colors;
618 made it have only two buttons, "Settings" and "Help".
619 * Made `sonar' understand `.ssh/known_hosts2' format
620 files, and be better about stripping out illegal
622 Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
623 some versions of the GL libraries (appear to) allocate
624 hundreds of megs for every GL program, so `memoryLimit'
625 was causing GL programs to malfunction or crash on
627 * Improved fading on TrueColor XFree86 4.1.x systems.
628 * New GL hack, `circuit'.
629 * Added `fuzz' mode to `decayscreen'.
630 * New version of `whirlygig'.
631 * Added links to `xplanet' and `sphereEversion'.
632 * Fixed rare race condition that could make `sonar' hang.
633 * Fixed potential crash in `speedmine'.
634 * Made `xscreensaver-demo' not crash when imageDirectory
635 was set to a non-existent directory.
636 * Made `xscreensaver-getimage-video' invoke XawTV's
637 `streamer' program better.
638 * Made `phosphor' and `starwars' deal with CR, LF,
639 or CRLF line endings.
640 * Changes for Cygwin compilation environments.
641 * Made `sonar' compile on systems that can't ping.
642 * Configure changes for HPUX 10.20.
643 * Made PAM code work on Red Had 4.2 systems.
644 * Made `xscreensaver-command -deactivate' work when the
645 saver is not active: what that does is reset the idle
646 timer, as if keyboard input had been detected. This
647 was added for the benefit of people writing DVD-playing
648 software: they can now prevent the screensaver from
649 kicking in by sending a -deactivate message once a
650 minute while the movie is playing and not paused.
651 * Various minor portability tweaks.
652 Changes since 3.32: * New hacks, `speedmine' and `whirlygig'.
653 * Sped up `pyro', made the explosions look a bit better.
654 * Added better stars to `glplanet' and `starwars'.
655 * Many internal changes to `webcollage'.
656 * Some new options to `attraction'.
657 * Minor fix to `noseguy' to avoid un-erased pixels.
658 * Rewrote the screen-eraser effects so that they complete
659 in the same amount of time regardless of how slow
660 your X server is (some of them were glacial on servers
662 * Fixed a potential free memory reference that could
663 sometimes cause a crash at startup.
664 * Possibly fixed a problem that could cause the daemon
665 to crash with an X error. I was never able to
666 reproduce this problem, but I think I might have
667 figured out what caused it.
668 * Worked around a problem that caused PAM authentication
669 to fail on some Red Hat 7.x systems.
670 * Added a `memoryLimit' parameter that controls the
671 amount of memory a graphics hack may allocate: if they
672 try to allocate more than this, malloc() will fail
673 (and they will exit or (safely) crash, rather than
674 hogging memory.) Default is 50M.
675 * Made `gnome-help-browser' be the default way to display
676 man pages in `xscreensaver-demo', if running on a
678 Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
679 now operate on randomly chosen image files from disk,
680 or on frames captured from the system's video input,
681 instead of (or in addition to) manipulating images of
683 * Rewrote `vidwhacker' to use the new image-grabbing
685 * Made fading work on TrueColor XFree86 4.x systems.
686 * Fixed a subtle rendering bug in `atlantis' (the fish
688 * Made `atlantis' have a texture simulating light
689 reflections from the surface of the ocean.
690 * Fixed up label placement in `molecule'.
691 * Better color bars in `xteevee'.
692 * Made `install-strip' not try to strip scripts.
693 Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
694 the documentation to reflect the fact that all your
695 DPMS settings are now belong to xscreensaver.
696 * Fixed the `xscreensaver.spec' file so that `--force'
698 * New versions of `rotzoomer' and `nerverot'.
699 * Fixed an OSF/1 compilation problem in `molecule'.
700 Changes since 3.29: * New hacks, `molecule', `dangerball', and `rotzoomer'.
701 * New version of `gflux'.
702 * Made `gltext' able to display the current time.
703 * Fixed a floating-point-precision problem in `gltext'
704 that sometimes caused horizontal lines to vanish.
705 * Removed the `-window-id' option from the hacks:
706 it never worked right, and was unnecessary.
707 * Made the `starwars' hack use thicker lines, antialias
708 the text, and fade out at the far edge instead of just
710 * Fixed an SHM segment leak in `moire'.
711 Changes since 3.28: * Better rendering of the new logo.
712 * New hack, `gltext'.
713 * Added `-planetary' option to `gears', to draw a
714 different kind of gear system.
715 * Made motion and rotation be smoother in `gears',
716 `glplanet', `moebius', `rubik', and `sierpinski3d'.
717 * Improved coloration in `sierpinski3d'.
718 * Made the GL hacks react to window size changes.
719 * Made most of the GL hacks take a -fps option (like
720 `pulsar' did), so you can use them to benchmark your
722 * Fixed the previous fix to `sonar'.
723 * Minor fix to `nerverot'.
724 Made sonar able to ping hosts on DEC OSF1.
725 * Eliminated a bogus "didn't get enough colors" warning
726 in some of the hacks.
727 Changes since 3.27: * New logo for xscreensaver!
728 * New hacks, `starwars' and `stonerview'.
729 * Made the motion of the bouncing ball in `stairs' be a
731 * Made newly-added screenhacks be added to .xscreensaver
732 automatically: if there are hacks in the app-defaults
733 file that are not also in ~/.xscreensaver, they will
734 be added to the end of the list.
735 * Redid the `Screensaver Options' part of the control
736 panel; xscreensaver now lets you configure your DPMS
738 * Fixed some Makefile problems with non-GL builds.
739 * Fixed detection of MesaGL for version 3.3.
740 * Better workaround to Red Hat 7.0's broken gcc.
741 * Added Sparc Solaris kernel panic to `bsod'.
742 Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
743 * Fixed a free-memory-reference bug in `sonar'.
744 * Better error handling when there are no suitable GL
746 * Added diagnostic dialog when xscreensaver-demo is
747 unable to launch xscreensaver (e.g., when running as
749 * Fixed a bug that caused screenhack argument changes
750 to be ignored when xscreensaver-demo was running as
751 root (if "root" and "nobody" have different home
753 * Made the programs default to ":0" if $DISPLAY is unset.
754 * Made the `-verbose' output include information about
755 which server extensions were supported at compile time.
756 * Worked around Red Hat 7.0's broken gcc 2.96.
757 * Updated default delays on the GL hacks to look better
758 on machines with super-fast 3D hardware.
759 * Install `screensaver-properties-capplet' to work around
760 the usual egregious GNOME lossage.
761 Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
762 xscreensaver-demo (Gtk version only.)
763 * New hacks `hyperball', `xrayswarm', and `gflux'.
764 * New versions of `nerverot', `galaxy', and `hypercube'.
765 * Small fixes to `phosphor', `shadebobs', `xflame',
767 * Added external helper program `xscreensaver-gl-helper'
768 to figure out which X visual to use for OpenGL
770 * Configure updates for XFree86 4.0, and for BSD.
771 * Made it be more tolerant of bogus /etc/group files.
772 * When installing the PAM config file, first try to just
773 copy an existing "xdm" or "login" config file, so that
774 xscreensaver does authentication in the same way as the
776 Changes since 3.24: * New hack, `nerverot'.
777 * Added BSD kernel panic to `bsod'.
778 * New version of `shadebobs'.
779 * New version of `petri'.
780 * Updated `webcollage' to handle recent Altavista URL
781 format changes; made it search the AP photo gallery.
782 * Revamped command-line options of `sonar' and made it
783 properly handle subnets.
784 * The `bubbles' hack can now trickle up or down the
786 * The `xsublim' hack can now read its text from programs.
787 * Support for GLE version 3 in `extrusion'.
788 * Fixed compilation problems in `maze'.
789 * Fixed a rare crash in `flow'.
790 * Fixes for minor installation problems.
791 Changes since 3.23: * Added `-ignorant' option to `maze' hack.
792 * Updates to `critical', `bsod', `xflame', and `flow'.
793 * Added support for Kerberos 5 (via its Kerberos 4
794 compatibility layer.)
795 * Fixed a bad leak in `xteevee'.
796 * Updated `webcollage' to handle recent Altavista URL
798 * Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
799 since they were confusing people: all changes are now
801 * Made xscreensaver-demo install itself into the Gnome
803 Changes since 3.22: * Fixed some misplaced text fields in the Motif version
804 of xscreensaver-demo; fixed a crash in the Gtk version
805 that would happen if the programs list was empty.
806 * Fixed a recently-introduced bug in `pulsar'.
807 * Made `sierpinski3d' use solid tetrahedrons instead of
809 * Added `-trace' option to `xmatrix'.
810 * Added new hacks `xteevee' and `xspirograph'.
811 Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
812 * Rewrote the Motif version of xscreensaver-demo to
813 match the new Gtk version.
814 * The Athena toolkit is no longer supported.
815 Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
816 * Fixed a few visual selection bugs. I think the proper
817 GL visual should be used with nVidia systems now.
818 * Made the Makefiles obey $install_prefix.
819 * Made the `xscreensaver.spec' file able to generate both
820 GL and non-GL packages simultaneously.
821 Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
822 * Made `xscreensaver-command -exit' be silent when no
823 screen saver was running (instead of complaining.)
824 * Made `webcollage' and `vidwhacker' use `xloadimage'
825 when available (in addition to `xli' and `xv'.)
826 * Improved memory usage in `petri' and gave it a hard
827 cap on how much memory it can allocate.
828 * Added `-watch' option to `xscreensaver-command'.
829 * Made `xscreensaver-demo' come up with the
830 most-recently-run hack selected by default.
831 * Rewrote the Gtk version of `xscreensaver-demo'.
832 It's a lot easier to use now.
833 * Extended the format of the programs list in the
834 .xscreensaver file, for the benefit of the new
835 capabilities of `xscreensaver-demo'.
836 NOTE: you might want to delete your ~/.xscreensaver
837 file and allow it to be re-created! The old one
838 should still work, but xscreensaver-demo won't be as
840 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
841 * New hack, `extrusion'.
842 * Some of the web sites that `webcollage' was using as
843 its sources changed formats; tweaked it to understand
845 * Added typeahead in the password dialog: if the screen
846 is locked, and you unlock it by typing a character,
847 that key will be automatically inserted in the
848 password dialog (unless it is Return, Enter, Space,
849 or a non-printing key like Shift.)
850 * Made `xmatrix' take a `-small' option, since some
851 folks with tiny screens prefer a smaller font.
852 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
853 * Added `ccurve', `blaster', and `bumps' hacks.
854 * Replaced `forest' hack with a rewritten version.
855 * Worked around a Xinerama server bug.
856 * Fixed a bug I introduced in 3.10 that caused some
857 hacks to print out superfluous warnings about not
858 having gotten enough colors.
859 * Made `sproingies' obey the `-delay' option.
860 * Fixed a portability bug in `shadebobs'.
861 * Made `webcollage' and `vidwhacker' use `xli' in
862 preference to `xv', if it is available.
863 * Added a new source of images to `webcollage'.
864 * If running under KDE, xscreensaver will add itself to
865 KDE's list of screensavers (via xscreensaver.kss.)
866 * Improved detection of GL libraries.
867 * Made the password dialog include the date and time.
868 Changes since 3.16: * New version of `webcollage' -- deals better with
869 corrupted images, and can use an http proxy.
870 * New hack, `xsublim' (run it in the background,
871 rather than adding it to the programs list.)
872 * The xscreensaver daemon was leaking a file descriptor
873 each time you edited your .xscreensaver file. Fixed.
874 Changes since 3.15: * New version of `shadebobs'.
875 * Improved image selection in `webcollage', and sped it
877 * Made configure find the right version of perl.
878 * Rewrote the CGI part of `webcollage'.
879 * `make clean' was deleting some things it shouldn't.
880 * Fixed a typo in the default programs list.
881 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
882 * Added a `-stdout' arg to `vidwhacker' so that it can
883 be used in a pipeline.
884 * Made `petri' use less memory.
885 Changes since 3.13: * Various improvements to the Gtk port.
886 * Turned off PAM by default on Solaris, since PAM seems
887 generally to be misconfigured out-of-the-box.
888 * Made the `--without-gtk' configure option work.
889 * Made configure check the Gtk version number, since it
891 * Fixed a bug in the code that attempted to prevent
892 changes of screen resolution while the screen is
894 * Fixed a race condition in `xscreensaver-demo' that
895 could cause an X error at startup.
896 * Added `-transparent' option to `deluxe'.
897 * Added `petri' hack.
898 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
899 * Made it possible to build Motif, Gtk, and Athena
900 versions of `xscreensaver-demo' in the same directory
901 without reconfiguring.
902 * Made `xscreensaver-demo' chase symlinks before writing
903 the .xscreensaver file, so that if .xscreensaver is
904 itself a symlink, the underlying file will be replaced
906 * Some Makefile and configure tweaks for Solaris and
908 * Made it possible to set the fire color in `xflame'.
909 * Made transparency work in TrueColor (for `goop' and
911 * Fixed a multi-head bug introduced by the virtual
913 Changes since 3.11: * Made it so that you can't scroll the screen while the
914 lock dialog is up (with XFree86 virtual viewports.)
915 * Fixed a bug in `flag' that caused bob's chin to get cut
916 off after a few iterations.
917 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
918 less like a computer screen and more like the
919 typewritten paper it's supposed to be.
920 * New version of `pulsar'.
921 * Fixed Solaris compilation problem in `phosphor'.
922 * Made xscreensaver notice XFree86's virtual root window
923 hack, so that if the X server's root window is larger
924 than the monitor's displayable resolution, the screen
925 saver will limit itself to the area that actually
926 appears on the screen.
927 * Made the xscreensaver daemon do a better job of
928 picking the visual class that should be used for GL
929 programs. Less user intervention should be needed
930 now: you can use the logical visual name `GL' instead
931 of having to figure out by hand which one to use.
932 * Oops, the visual was defaulting to "best" instead of
933 "default", because the .xscreensaver file was not being
934 loaded quite early enough.
935 * Made configure figure out how to build icmp ping
936 support into the `sonar' hack automatically.
937 * Made warnings about not being able to read shadow
938 passwords not be printed if compiled with PAM support.
939 * Improved PAM startup diagnostics.
940 * Worked around the Solaris PAM bug that was causing
941 crashes there, so now PAM is turned on by default.
942 * Made configure detect the number of arguments that
943 pam_strerror() takes, since on Linux, this apparently
944 changed between 2.0 and 2.2, sigh.
945 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
946 as well as "keyboard".
947 * Made xscreensaver notice when there has been a sudden
948 large jump in wall-clock time, and if so, lock right
949 away, instead of waiting for "lockTimeout" to expire
950 first. (Laptops need this for safer recovery from
952 * Added `-throttle' option to `xscreensaver-command'.
953 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
954 * Fixed a bug in the color allocator that sometimes
955 caused `starfish' to fall back to monochrome.
956 * Reduced the amount of code that runs before root
957 privileges are disavowed: "normal" and "shadow"
958 passwords now do some initialization as root, but the
959 PAM and Kerberos authorization schemes will be
960 initialized while running as "nobody". Supposedly
961 this closes a potential security hole when using
963 * Added some more sanity checking to configure.
964 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
965 `spotlight', and `critical' hacks.
966 * Added some new modes to `decayscreen'.
967 * Made `deluxe' work in monochrome.
968 * Generalized usage of the Double-Buffer server extension
969 in several hacks (`compass', `deluxe', `interference',
970 `kumppa', and `moire2'.)
971 * Fixed another visual-depth problem in `rd-bomb'.
972 * The screen saver will now defer blanking if neither
973 the keyboard nor the mouse could be grabbed. Instead,
974 it will just try again in a few minutes. This fixes
975 a bad interaction between xscreensaver and programs
976 like VMware that hold the mouse and keyboard grabbed
978 * Added a new erase mode (expanding spiral.)
979 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
980 * Added `penetrate' and `deluxe' hacks.
981 * When linking against Motif 2.x, also link against XPM.
982 * Added support for using /proc/interrupts for idle
983 detection on Linux. Now xscreensaver shouldn't kick
984 in when the user is active on a non-X virtual console.
985 * Upgraded to autoconf 2.13.
986 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
987 in properly; check for _Xsetlocale in -lXintl.)
988 * Portability fixes for sonar.c.
989 * Fixed a compilation problem when you have GL but don't
991 * Made configure notice when MesaGL requires -lpthread.
992 * Made `flame' ignore SIGFPE (not sure if this is the
993 right fix; it seems only to be needed on FreeBSD.)
994 * Kludged `rd-bomb' work on visuals that are of depth 24
995 but that *do not* support pixmaps of depth 32.
996 * Fixed `halo' to work properly in TrueColor.
997 * Changed `xscreensaver.spec' to install the hacks in
998 /usr/X11R6/lib/xscreensaver/ by default, since that's
999 where recent Red Hat distributions put them.
1001 * Updated versions of `crystal', `hopalong', and `flow'
1003 * Imported `demon' and `loop' modes from xlockmore.
1004 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
1005 it was always installing a colormap if the
1006 `installColormap' preference was set, meaning that
1007 `xearth', `xv' and friends were using the wrong
1008 colors on 8-bit systems.
1009 * Turned off HAVE_PING in `sonar', since it compiles
1010 on some Linux systems, but not others of similar
1012 Changes since 3.04: * Fixed an off-by-1 in `distort'.
1013 * Added `sonar' hack.
1014 * New version of `glplanet' (with stars.)
1015 * Made all hacks exit when you type `q' or `ESC' at them,
1016 and made them obey the WM_DELETE_WINDOW ClientMessage.
1017 * Fixed a nonfatal buffer overrun in lament (note:
1018 lament still doesn't work with MesaGL 3.0: it dies in
1019 lambda_textured_triangle1(), which is Mesa's bug, not
1021 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
1022 for other folks to generate RPMs.
1023 * Made the password code work on HPUX in the situation
1024 where: ``enhanced security'' is available; but not
1025 used; but the user typed a password more than 8
1026 characters long anyway. FTSOHPUX.
1027 Changes since 3.02: * Made locking work when passwd aging is enabled.
1028 * Added support for PAM (Pluggable Authentication
1029 Modules.) It is still turned off by default, though,
1030 since it doesn't seem to work on Solaris 2.6, and has
1031 been behaving erratically on Red Hat 5.1.
1032 * Made each possible authentication method be tried in
1033 turn until one succeeds; this means that Kerberos is
1034 being used, we will first check Kerberos, and if that
1035 fails, will then consult the local password file.
1037 * Save and restore the bits under the passwd dialog,
1038 to avoid leaving a black rectangle behind when
1039 unlocking is cancelled.
1040 Changes since 3.01: * Not everyone has sys/select.h, sigh...
1041 Changes since 3.00: * Some fixes to `reflect'.
1043 * Made it log unsuccessful attempts to unlock the screen
1045 * Fixed a bug where `xscreensaver-demo' could be seeing
1046 a different programs list than `xscreensaver' did.
1047 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
1048 or Athena: demo-mode and the preferences panel are no
1049 longer built in to the daemon, but are now handled by
1050 an external program, `xscreensaver-demo'.
1051 (I decided that this, along with the recent addition
1052 of the `.xscreensaver' config file, justified bumping
1053 the version number to 3.00, since this is a fairly
1054 major architectural change.)
1055 * Lines in the `*programs' resource may now begin with
1056 the character "-", meaning "don't run this hack."
1057 In this way, it's possible to disable a hack without
1058 throwing away the information about it (making it
1059 easier to change your mind later.) Eventually the
1060 preferences/demo mode GUI should represent this as a
1061 checkbox or something.
1062 * Fixed a short race condition where it was possible for
1063 xscreensaver to die with a BadWindow error if it was
1064 blanking the screen just as another window was being
1066 * Made it possible to disable specific modes in `bsod'.
1067 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
1068 many valves. Made the viewpoint in `pipes' be selected
1069 randomly instead of always being -10 degrees.
1070 * Fixed a bug in the XSHM code, in the case where the
1071 server supports the XSHM extension but is not the same
1072 machine as the client.
1073 * Made `rd-bomb' default to taking up the whole screen.
1074 * Made it not try to do fading/unfading if no PseudoColor
1076 * Initial attempt at supporting VT-locking (doesn't work
1078 * Eliminated the `captureStdout' resource; now
1079 `captureStderr' controls both streams.
1080 * Added `-capture-stderr' and `-no-capture-stderr'
1081 command-line arguments.
1082 * Added `glplanet' hack.
1083 * When a hack is selected with `xscreensaver-command
1084 -select', that hack will be used until further notice
1085 (until the saver turns off, or another activation
1087 Changes since 2.32: * Made `xscreensaver-command' print error messages:
1088 the xscreensaver daemon now responds to ClientMessage
1089 events by writing a response message on a window
1090 property, instead of just writing to its stderr.
1091 * Made the ~/.xscreensaver file be automatically reloaded
1092 when the file date changes.
1093 * The password dialog and splash screen no longer depend
1094 on Motif or Athena. This should clear up a number of
1095 focus problems, and is the first step on the path
1096 toward moving all of the Motif/Athena/whatever code
1097 out of the xscreensaver daemon, and into external
1099 * Don't complain about LessTif 0.86 any more, since the
1100 new password dialog makes that problem go away.
1101 * Configure tweaks for Irix 6.5, SunOS 5.something.
1102 * New `-reflect' option to `distort'.
1103 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
1104 so that the Preferences panel can save its settings.
1105 * New version of `rubik'.
1106 * Added `-select N' argument to `xscreensaver-command'.
1107 * Oops, left out some of the `bubbles3d' files...
1108 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
1109 * Made configure warn against MesaGL 2.6.
1110 * Fixed X error at startup when using non-default visual.
1111 * New version of `crystal', `ant', and `atlantis' from
1113 * New hack, `bubble3d'.
1114 * Added some new modes to `bsod'.
1115 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
1116 to be after Motif instead of before (Lesstif on Irix
1118 Changes since 2.28: * Work around a bash bug in configure.
1119 * Tweaked HPUX paths again. FTSOHPUX.
1120 * Made configure recommend against LessTif 0.86, due
1121 to a bug in that version that causes a security hole
1122 in the screen locking code. LessTif 0.87 will fix it.
1123 * Made all of the `--with' options to `configure' accept
1124 a directory option as well (so that --with-motif=/FOO
1125 will add -I/FOO/include -L/FOO/lib). I believe this is
1126 the Configure Party Line of how do to such things.
1127 * Fixed a bug where the mouse was left un-grabbed
1128 after the first time the graphics hack was changed
1129 (simplified all of the mouse-grabbing logic.)
1130 * Maybe possibly perhaps made `vidwhacker' really not
1131 leave stray xv windows around. This time for sure.
1132 * Added a new erase mode (random dots fizzling out.)
1133 * Added `-prefs' argument to `xscreensaver-command',
1134 that brings up the Preferences dialog directly (it
1135 seems that nobody ever noticed the `Preferences' button
1136 on the Demo Mode dialog, maybe this will help.)
1137 * Added a splash screen. Turn it off with *splash:false.
1138 Changes since 2.27: * Better macsbug text in `bsod'.
1139 * New version of `distort' with many new modes.
1140 * Plugged a leak in `coral'.
1141 * Tweaked configure for HPUX.
1142 * Removed some compiler warnings.
1143 * More consistent usage of stderr versus stdout.
1144 * More diagnostics should an X error occur.
1145 * Fixed a possible crash in SGI-specific unfading code.
1146 Changes since 2.26: * Improved version of `distort'.
1147 * Made `lament' compile against OpenGL 1.0 (though it
1148 still requires 1.1 to work properly.)
1149 * Updated my email address and home page.
1150 Changes since 2.24: * Improved motion in `rd-bomb'.
1151 * Added XSHM (shared memory extension) support to the
1152 `distort', `interference', `moire', `rd-bomb', and
1153 `swirl' hacks, which speeds them up a bit.
1154 * Added `lament' hack.
1155 Changes since 2.23: * Tweaked the order of the -L options again.
1156 * Cleaned up configure's `--help' message.
1157 * Added `kumppa' hack.
1158 * Smarter maze-solving algorithm in `maze'.
1159 * Took `xlyap' out of the default list of hacks, since
1160 it's just incredibly buggy (and slow.) Maybe someday
1161 someone will fix it...
1162 * Added `distort' hack, but didn't add it to the default
1163 list (yet) because it's still too slow.
1164 * Made the Athena demo dialog look more like the Motif
1165 version; it has a text-entry field now, too.
1166 * Made the Athena password dialog echo asterisks, like
1167 Motif does, instead of using a flyspeck font.
1168 * Some random configure tweaks.
1169 * Added a `timestamp' resource that makes the `-verbose'
1170 messages include the time at which they were printed.
1171 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
1172 let the user's "*background" resource show through.
1173 Fixed it in a different way.
1174 Changes since 2.21: * Added support for the DPMS server extension (Display
1175 Power Management System.)
1176 * Made configure advertize the `--enable-subdir' option a
1177 little more, since that seemed to cause some people
1178 stress. Also, made that directory be built into the
1179 xscreensaver executable, as a hardcoded prefix to
1180 $PATH. (Might help, shouldn't hurt.)
1181 * Made configure prefer the two-arg gettimeofday to the
1182 one-arg version, since AIX doesn't have any prototypes.
1183 * Made it work with Xaw3d (the 3D Athena library.)
1184 * Made `make install' create directories as necessary.
1185 * New version of lmorph from Sverre.
1186 * Added `crystal' and `discreet' hacks from xlockmore.
1187 * Added a new mode to `bsod'.
1188 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
1189 (It now describes the two states as "screen blanked
1190 since..." and "screen non-blanked since..." instead of
1191 "active since..." and "inactive since..." which a lot
1192 of people interpreted as meaning the opposite of what
1194 * Improved some error messages, in the hopes of making
1195 the distinction between the xscreensaver and
1196 xscreensaver-command programs more obvious.
1197 * Rewrote (and reorganized) parts of the xscreensaver and
1198 xscreensaver-command manual pages.
1199 * Renamed xscreensaver's `-lock' command-line option to
1200 be `-lock-mode', to avoid confusion with the `-lock'
1201 option to xscreensaver-command, which does a totally
1203 * Removed xscreensaver's `-demo' command-line option for
1204 a similar reason; use `xscreensaver-command -demo'
1206 * Disabled SGI's ``scheme'' nonsense in a better way than
1207 fully-qualifying the background colors in every single
1209 * Fixed some other minor cosmetic problems when *sgiMode
1211 * Fixed an X error in `bsod -root' (how ironic...)
1212 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
1213 grabbed properly (meaning the window manager menu could
1214 pop up over the demo-mode display.)
1215 * Fixed a bug that made the stderr output sometimes get
1217 * Fixed a bug that made the demo-mode scrollbar move too
1219 * Protected against a possible buffer overflow.
1220 * Made `vidwhacker' not leave stray xv windows around.
1221 * New version of `ant' so that Bagley doesn't calve.
1222 * Make configure on AIX get XShm from the right library.
1223 Changes since 2.18: * One file was missing from the tar file. Fixed.
1224 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
1225 * Added `epicycle' hack.
1226 * Added `interference' hack.
1227 * Added `truchet' hack.
1228 * Added `bsod' hack.
1229 * Added some new modes to `vidwhacker'.
1230 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
1231 can draw on arbitrary externally-provided windows.
1232 * Synched with xlockmore 4.11a01.
1233 * Added `flow' hack.
1234 * Added `atlantis' GL hack.
1235 * Renamed `puzzle' hack to `jigsaw', since xlock already
1236 had a different mode called `puzzle'.
1237 * Made it self-configure properly when Motif 2.1.0 is
1238 being used (requires -lXp now, sigh...)
1239 Changes since 2.15: * Made `flag' able to do XPM images.
1240 * New look for the xscreensaver logo (`xroger').
1241 * Fixed compilation error on Suns with adjunct passwords.
1242 * Got multi-architecture builds working again.
1243 * Some configure tweaks for building on HPUX and Solaris.
1244 * Fixed bug in decayscreen.
1245 * Fixed typo in passwd.c.
1246 * Made `cynosure' not die when colormap is full.
1247 Changes since 2.14: * Added `cynosure' hack.
1248 * Added `moire2' hack.
1249 * Tweaked `erase.c' some more.
1250 * Made unfading a bit smoother.
1251 * Added `vidwhacker' hack (not installed by default.)
1252 * Added `stairs' hack.
1253 * Split `escher' into `cage' and `moebius', as per
1255 * Changed subprocess handling to use sigaction() instead
1256 of signal() if it's available (this is necessary for
1257 SCO but should work fine on other systems too.)
1258 * Various other tweaks.
1259 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
1260 * Put in some kludges to work around a LessTif bug.
1261 * XScreenSaver is known to work with LessTif 0.82 now.
1262 * Made fading work on high-end SGI video hardware.
1263 * Fixed another SGI-specific bug in screen grabbing;
1264 will the madness never cease?
1265 * Fixed another crash in `xlyap'.
1266 Changes since 2.12: * Made `decayscreen' do directions other than down.
1267 * Improved `puzzle'.
1268 * Fixed a crash in `xlyap'.
1269 * Added CDE info to the man page, removed `cde.txt'.
1270 * Configure tweaks for Zippy.
1271 * Turned off the signal handling in `bubbles' because
1272 it was sometimes failing to die.
1273 * Added `hacks/xscreensaver-sgigl.c' to make it possible
1274 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
1275 with xscreensaver. Finally!
1276 * Fixed a buffer overrun in the locking code that some
1277 wily, malicious cracker must have slipped in.
1278 * Disabled Motif drag-and-drool in the dialog box
1279 buttons, since it's broken in some old versions of
1281 Changes since 2.11: * Added `README.debugging'.
1282 * Added `puzzle' hack.
1283 * Added `xlyap' hack.
1284 * Added `default-n' as a visual name, so that one can
1285 have -install on by default, but turn it off for
1286 certain poorly-behaved hacks (like xv.)
1287 * Added support for grabbing frames of external video
1288 (on SGI) to the screen-grabbing hacks (decayscreen,
1289 slidescreen, slip, blitspin, and puzzle.)
1290 * Improved look of tiles in `slidescreen'; fixed its
1291 color allocation problem.
1292 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
1293 * Added `lissie', `mountain', `triangle', `worm',
1294 `rotor', and `ant' from xlockmore.
1295 * Updated `sierpinski', `galaxy', and `lisa'.
1296 * Thickened the lines in `braid' and `lmorph'.
1297 * Updated VMS makefiles.
1298 * Renamed `fract' to `vines'.
1299 * Added `xjack' hack.
1300 * Made a few more hacks use erase.c, and added a few
1302 * Fixed compilation problem with Sun's version of OpenGL.
1303 * Added ability to use sigaction() instead of signal()
1304 to work around a SCO kernel bug.
1305 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
1306 * Configure tweaks for *BSD.
1307 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
1308 * New version of `maze' with some new algorithms.
1309 * New colorized version of `rocks'.
1310 * Fixed a bug in qix on 64-bit machines.
1311 * Fixed a bug in the -time option.
1312 * Fixed a bug in configure related to LessTif.
1313 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
1314 * Made multi-architecture ($VPATH) builds work properly.
1315 * Merged new GL stuff from xlockmore (rubik, morph3d.)
1316 * Fixed intermittent crashes in `imsmap' and `munch'.
1317 * Added `fadeplot' hack from xlockmore.
1318 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
1319 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
1320 configure to detect the extra-random -Xss library.
1321 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
1322 * Fixed low-color behavior of `goop', `pyro', `starfish',
1323 `greynetic', `flame', `halo', and `moire'.
1324 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
1325 * Added `munch' hack.
1326 * Added basic dependencies to the Makefile.in files.
1327 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
1328 * Made the yow/fortune program be a configure option.
1329 * Various configure tweaks.
1330 Changes since 2.00: * Added `goop' and `starfish' hacks.
1331 * Added colomap cycling to `halo'.
1332 * Made `attraction' use the new colormap allocator.
1333 * Added better $PATH diagnostics.
1334 * There was a bug in frand! Color selection should be
1336 Changes since 1.34: * Converted to use `configure' instead of `imake'.
1337 * ANSI C is now required.
1338 * Added Kerberos locking support, from Nat Lanza.
1339 * Made the stderr text use overlay planes, if possible.
1340 * Reworked the xlockmore compatibility stuff again.
1341 * Added `gears', `superquadrics', `escher', `pipes',
1342 and `sproingies' hacks (depend on OpenGL.)
1343 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
1344 Changes since 1.32: * Made it work with multi-headed displays.
1345 * Generalized sub-process management (Unix sucks!)
1346 * Added interactive mouse frobbing to Julia.
1347 * Added (untested) support for HPUX shadow passwords.
1348 * Made normal non-shadow passwords be checked if the
1349 shadow passwords aren't accessible for some reason.
1350 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
1351 made it possible to specify the desired visual on a
1353 * Cleaned up / restructured the driver: no more globals.
1354 * Made the Motif and Athena dialogs share more code.
1355 * Probably fixed some Athena colormap-installation bugs.
1356 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
1357 * Fixed divide-by-zero in bright random colormaps.
1358 * Added an improved version of xlock's `flag' hack.
1359 * Made unfading work better, and not flicker on SGIs.
1360 * Added `sphere', `forest', `lisa' hacks from xlockmore.
1361 * Added (untested) support for SunOS Adjunct passwords.
1362 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
1363 * Cleaned up xlockmore compatibility layer.
1364 * Made `blitspin' able to grab an image off the screen.
1365 * Ported `swirl' and `bouboule' hacks from xlockmore.
1366 * Made the driver more careful about not leaving bits on
1367 the screen, or allowing other windows to raise
1368 themselves: it now re-blanks the screen every so often.
1369 * Added `-time' option to `xscreensaver-command'.
1370 * Improved SGI screen-grabbing some more: now it can grab
1371 TrueColor screens into PseudoColor windows and have the
1372 colors still come out semi-reasonably.
1373 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
1374 SGIs when windows of different visuals are present, by
1375 using the XReadDisplay() extension to get a true 24-bit
1376 image out of the frame buffer.
1377 * Made `noseguy' be in color, if compiled with XPM.
1378 * Ported `braid', `drift', `fract', `galaxy', `grav',
1379 `ifs', `julia', `laser', `lightning', `penrose',
1380 `sierpinski', `slip', `spiral', and `strange' hacks
1382 * Merged `hopalong' hack with a more recent version.
1384 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
1385 * Merged in support for non-Motif locking and demo mode.
1386 * Made `blitspin' and `bubbles' work in TrueColor.
1387 * Fixed a stupid bug I introduced in `imsmap'.
1388 * Added `poly' and `gravity' options to `qix'.
1389 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
1390 * Made `fade' and `unfade' work on 8-bit SGIs.
1391 * Made the dialog boxes more Motify.
1392 * Added `bubbles' hack.
1393 Changes since 1.25: * Added `lmorph' hack.
1394 * Added viscosity and mouse-control to attraction.
1395 * Fixed possible bad color choices in qix and attraction.
1396 * Added ramp-mode to halo.
1397 * Added a new RNG, which is faster and more portable
1398 than using the RNG in libc.
1399 * Made locking work on SCO.
1400 * Various other minor tweaks that I don't remember.
1401 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
1402 and present them on the screensaver window itself.
1403 * Made demo mode work correctly with non-default visuals
1404 and color maps, instead of always using the defaults.
1405 * Added -visual argument to all included screenhacks.
1406 * Support for the R6 MIT-SCREEN-SAVER server extension.
1407 * Made the demo mode list scroll properly.
1408 * Added `pedal' hack.
1409 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
1410 decayscreen, and xroger. Fixed apparent conservation-
1411 of-mass problem in pyro; made the shrapnel round.
1412 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
1413 Changes since 1.21: * Minor tweaks for X11R6.
1414 * Fixes for non-default visuals.
1415 Changes since 1.20: * Fixed bug in color blitspin; added default image.
1416 * Added diagnostics to noseguy. Fixed off-by-one
1417 error in flame. Added some missing casts.
1418 Changes since 1.18: * Added `flame' hack.
1419 * Fixed a minor Motif dialog text field bug.
1420 * Fixed yet another XPointer-not-defined-in-R4 bug.
1421 Changes since 1.17: * Added support for shadow password files.
1422 * Fixed some Motif-related locking bugs.
1423 * Added diagnostics when locking is disabled.
1424 * Made blitspin able to use the XPM library.
1425 * Added `decayscreen' hack.
1426 Changes since 1.16: * Added `halo' hack.
1427 Changes since 1.15: * Portability fixes.
1428 Changes since 1.14: * Broke the driver up into more source files.
1429 * Moved the hacks into their own directory.
1430 * Made all `time' parameters accept the 00:00:00 syntax,
1431 so that even the parameters which are normally read as
1432 minutes can be specified in seconds.
1433 * Added colormap cycling to `imsmap'.
1434 * Made hyper work with K&R compilers.
1435 Changes since 1.13: * Added `orbit' option to `attraction' hack.
1436 * Added `lock-timeout' option.
1437 * Cleaned up options of `maze' hack.
1438 Changes since 1.8: * Added demo mode, and locking.
1439 * Added `maze' hack.
1440 * Added `norotate' option to `rocks' hack.
1441 Changes since 1.4: * Works when run from XDM before anyone logs in.
1443 * Can use `xv' as a slideshow without using up colormap
1444 entries while the screen is not blanked.
1445 * Fixed a BadDrawable error in non-XIdle mode.
1446 * Added `blitspin' and `imsmap'.
1447 Changes since 1.0: * Current list of included hacks is now: qix, helix,
1448 rorschach, attraction, greynetic, rocks, pyro,
1449 hopalong, and noseguy.
projects / xscreensaver / blob