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 5.17: * iOS responds to shake gestures to randomize.
42 * iOS can load images from your Photo Library.
43 * iOS has clickable Wikipedia links in Settings panels.
44 * Made `pipes' be ridiculously less efficient, but spin.
45 * Added better mouse control to `rubik', `cube21',
46 `crackberg', and `julia'.
47 * Cosmetic improvements to `queens' and `endgame'.
48 * `sonar' can now ping local subnet on DHCP.
49 * Most savers now resize/rotate properly.
51 Changes since 5.16: * More iOS tweaks.
52 * Fixed some compilation problems.
53 * Enlarged the texture image for `lament'.
54 Changes since 5.15: * Ported to iPhone and iPad.
55 * XInput devices now also ignore small mouse motions.
56 * Loading images via RSS feeds is much improved.
57 * Various minor fixes.
58 Changes since 5.14: * New hacks, `hilbert', `companioncube' and `tronbit'.
59 * Image-manipulating hacks can now load from RSS or Atom
60 feeds: `imageDirectory' may contain a URL.
61 * Updated `webcollage' for recent search engine changes.
62 * `phosphor' and `apple2' can now be run as standalone
63 terminal emulator applications on MacOS.
64 * `photopile' sped up.
65 * New molecule in `molecule'.
66 * "Upgraded" to XCode 4.0, which means that MacOS 10.4
67 PPC builds are impossible, and Intel is now required.
68 * Turned on LC_CTYPE on Linux; maybe Japanese password
70 Changes since 5.13: * Fixed crash in Blank Only Mode when DPMS disabled.
71 * Added "Quick Power-off in Blank Only Mode" option.
73 Changes since 5.12: * Optionally enabled full-scene OpenGL antialiasing.
74 Set the resource `*multiSample' to true if doing so
75 doesn't kill performance with your video hardware.
76 * New version of `glhanoi'.
77 * Image-loading hacks that display the file name now also
78 display the sub-directory (xscreensaver-getimage now
79 returns relative paths under imageDirectory).
80 * Passwords that contain UTF-8 non-Latin1 chars are now
82 * Numerous minor stability fixes.
83 Changes since 5.11: * Big speed improvement on OSX for heavy XCopyArea
84 users (`xmatrix', `moire2', `phosphor', etc.)
85 * Plugged a bad OSX-only Pixmap leak.
86 * Kludged around the OSX pty bug that caused text to
87 be truncated in phosphor, starwars, apple2, etc.
88 * New molecule in `molecule'.
89 * `glhanoi' now supports an arbitrary number of poles.
90 * Turned on "New Login" button by default.
91 * Added support for XInput-style alternate input devices.
92 Changes since 5.10: * New versions of `photopile', `strange'.
93 * Worked around MacOS 10.6 garbage collector bug that
94 caused the screen saver process to become enormous.
95 * Fixed flicker in `pipes', `cubestorm', and `noof'.
96 * Fixed EXIF rotation on MacOS 10.6.
97 * Fixed desktop-grabbing when screen locked on MacOS.
98 * Minor fixes to `circuit', `polyhedra', `tangram',
99 `gears', `pinion', `substrate', `xanalogtv'.
100 * Fixed some leaks in `xanalogtv' and `apple2'.
101 * Better seeding of the RNG.
102 Changes since 5.09: * Fixed some crashes and color problems on MacOS 10.6.
103 * Retired `hypercube' and `hyperball', which are
104 redundant with `polytopes'.
105 Changes since 5.08: * Ported to MacOS 10.6, including various 64-bit fixes.
106 * New hack, `rubikblocks'.
107 * Fixed another potential RANDR crash.
108 * Use correct proxy server on MacOS.
109 * `molecule' now correctly displays PDB 3.2 files.
110 * Updates to `mirrorblob', `glhanoi', and `sonar'.
111 * Rewritten version of `klein' hack.
112 * New hack, `surfaces', incorporating objects from old
113 `klein' hack, plus new ones.
114 * Merged `juggle' and `juggler3d' hacks.
115 * Fixed compilation under gcc 4.4.0 (strict aliasing).
116 * Fixed intermittent failure in `xscreensaver-command'.
117 Changes since 5.07: * New hack, `photopile'.
118 * Rewrote `sonar' and `jigsaw' as OpenGL programs.
119 * Minor tweaks to `maze', `m6502', `hypnowheel', and
121 * Savers that load images now obey EXIF rotation tags.
122 * Arrgh, more RANDR noise! Fixes this time for rotated
123 screens, and for systems where RANDR lies and says the
125 * When the password dialog has timed out or been
126 cancelled, don't pop it right back up a second time.
127 * Password timeouts/cancels don't count as
129 * Retired some of the older, less interesting savers:
130 say goodbye to `bubbles', `critical', `flag', `forest',
131 `glforestfire', `lmorph', `laser', `lightning', `lisa',
132 `lissie', `rotor', `sphere', `spiral', `t3d', `vines',
133 `whirlygig', and `worm'.
134 * Merged `munch' and `mismunch'.
135 * Updated `webcollage' to use twitpic.com as well.
136 Changes since 5.06: * Xinerama/RANDR tweaks for old-style multi-screen.
137 * Added bumpy skin and cel shading to `skytentacles'.
138 * `flipflop' can load images onto the tiles.
139 * Fixed the bouncing ball in `stairs'.
140 * Added the missing Utah Teapotahedron to `polyhedra'.
141 * `blitspin' works with color images on MacOS now.
142 * Added transparency to `stonerview'.
143 * Improved layout of the preferences dialogs: they
144 should all now be usable even on ridiculously tiny
146 * MacOS preferences text fields now prevent you from
147 entering numbers that are out of range.
148 * Added "Reset to Defaults" button on X11.
149 * Added relevant Wikipedia links to many of the screen
151 * All hacks support the `-fps' option, not just GL ones.
152 * The `-fps' option now shows CPU load.
153 Changes since 5.05: * Xinerama/RANDR fixes: this time for sure. It should
154 now work to add/remove monitors or resize screens at
156 * New hack, `skytentacles'.
157 * New version of `gleidescope'.
158 * Added the `-log' option to the xscreensaver daemon,
159 since a truly shocking number of Linux users seem to
160 have no idea how to redirect output to a file.
161 * Added `-duration' arg to most image-loading hacks,
162 so that they pick a new image every few minutes.
163 * Added an ATM crash to BSOD.
164 Changes since 5.04: * New hacks, `cubicgrid', `hypnowheel', and
165 `lcdscrub' (which isn't really a screen saver).
166 * Updates to `m6502' and `gears'.
167 * Fixed double-buffering problems in `cubestorm' and
169 * Better handling of horizontal scroll wheels.
170 * Attempt to work around latest Xinerama braindamage:
171 if the server reports overlapping screens, use the
172 largest non-overlapping rectangles available.
173 * Don't warning about receipt of bogus ClientMessages,
174 since Gnome's just never going to stop sending those.
175 * Worked around MacOS 10.5 perl bug that caused the
176 text-displaying hacks to fail on some systems.
177 * Hopefully fixed font-related System Preferences crashes
179 * The recent PAM changes broke the "Caps Lock" warning
180 in the password dialog, the failed login warnings, and
181 syslogging. Fixed all that.
182 Changes since 5.03: * Fixed a possible crash in the unlock dialog (more
183 fallout from the recent PAM changes...)
184 * New hacks, `moebiusgears', `abstractile', and
186 * Rewrote `gears' to use better (involute) gear models,
187 and to be more random.
188 * Minor updates to `cwaves', `voronoi', `deco',
189 `glcells', `rd-bomb', `fireworkx' and `webcollage'.
190 * `pong' can now display the current time as the score.
191 * `xmatrix -mode pipe' works better.
192 * Minor tweaks for compilation on MacOS 10.5.0.
193 Changes since 5.02: * New hacks, `cwaves', `glcells', `m6502', and `voronoi'.
194 * Minor fixes to `bsod'.
195 * Fixed possible crash with PAM USB-dongle auth.
196 * Updated `webcollage' to track recent Google Images
198 Changes since 5.01: * Reworked PAM code to support fingerprint readers, etc.
199 * Ported 'webcollage' to MacOS.
200 * Added MacOS 10.2 and 10.3 kernel panics to `bsod'.
201 * Fixed a Xinerama crash when changing the screen count.
202 * New blobbier `mirrorblob'.
203 * Minor updates to `lisa', `bsod', `ifs', `hypertorus',
204 `polytopes', `circuit', `endgame', `crackberg',
205 `flipflop', `flipscreen3d', `fliptext', and `carousel'.
206 * Enabled multi-threaded OpenGL on MacOS.
207 Changes since 5.00: * Backed out recent locale-related changes, since they
208 broke far more things than they fixed.
209 * Fail gracefully with ridiculously small window sizes.
210 * `xflame' and `flag' ignore bitmap option on MacOS.
211 * `speedmine' prefs work on MacOS.
212 * Better explosions in `boxed'.
213 * More dynamic motion in `sproingies'.
214 * More options in `flipflop'.
215 * Minor updates to `topblock'.
216 * Various other minor fixes.
217 Changes since 4.24: * Ported to MacOS X! (10.4.0 or newer)
218 * API change: instead of providing a single screenhack()
219 function that does not return, screen savers using the
220 screenhack.h framework must now provide "init" and
221 "draw one frame" functions instead. All bundled savers
222 have been updated; third-party patches will need work.
223 * All image-loading happens asynchronously.
224 * xscreensaver-getimage-file caches the contents of the
225 image directory for a few hours, so consecutive runs
226 won't have to re-list the whole directory tree.
227 * New hacks, `topblock' and `glschool'.
228 * Removed `xteevee' (superceded by `xanalogtv').
229 * Added variable-sized puzzle pieces to `jigsaw'.
230 * Changes to the defaults and command-line options of
231 many hacks to make the .xml files more consistent.
232 * Reap zombies in `glslideshow' and `carousel'.
233 * `sonar' works without setuid on MacOS (dgram icmp).
234 * `xmatrix -mode pipe' displays the text of a subprocess.
235 * `endgame' has higher resolution chess-piece models.
236 * `webcollage' takes a -directory option to get images
237 from a local directory.
238 * The RPM spec file no longer auto-restarts xscreensaver
239 when a new version is installed. Restart it manually.
240 Changes since 4.23: * New versions of `cube21', `glsnake', `celtic'.
241 * Backed out a DPMS-related patch that cause desktop
242 flickering with some X servers.
243 * Fixed startup crash in getgroups() when running setuid.
244 * Default to not displaying stderr on the saver window.
245 * Fixed bad free() in "Documentation" button.
246 * Don't try to run hacks that aren't installed.
247 * Minor fixes to various XML config files and man pages.
248 Changes since 4.22: * New hacks, `glhanoi', `cube21', `timetunnel',
249 `juggler3d', and `celtic'.
250 * New versions of `tangram', `webcollage', `hypertorus',
251 `polytopes', and `ripples'.
252 * `sonar' is now quiet about unresolvable hosts.
253 * Minor corrections to BASIC code in `apple2'.
254 * xscreensaver-demo now provides an RPM clue when none
255 of the hacks seem to be installed.
256 * Don't install `ant' by default, since there is some
257 Java tool of that name, which was causing confusion.
258 And also it's boring.
259 * Made screen grabbing work again on MacOS 10.4.2.
260 * No longer prints bogus warnings about ClientMessages
261 intended for the window manager.
262 * Ignore unprintable characters in passwd entry field.
263 * Fixed yet another cross-host-display image-loading
265 * `xscreensaver-command -watch' and `-time' now work
267 Changes since 4.21: * Fixed a bug in the new mouse-motion code that caused
268 the screen to never blank on multi-head non-Xinerama
270 * New hacks, `interaggregate', `antmaze', `tangram',
272 * Minor tweaks to `fiberlamp', `ifs', `slidescreen',
273 `zoom', `sonar', `fireworkx', `whirlwindwarp',
274 `bubble3d', and `rd-bomb'.
275 * Added motion blur to `blinkbox'.
276 * `bsod' now includes Longhorn's "RSOD", and OS/2.
277 * Fixed `-wireframe' usage in most hacks and man pages.
278 Changes since 4.20: * New hack: `fliptext'.
279 * Changed default configure installation directories:
280 /usr/bin/ for xscreensaver, etc.;
281 /usr/libexec/xscreensaver/ for hacks;
282 /usr/share/xscreensaver/config/ for xml files.
283 * All the text-manipulating screen savers can have their
284 text source configured via `xscreensaver-demo' now.
285 * xscreensaver.spec now builds three RPMs:
286 base (no hacks); extras (2d hacks); and gl-extras.
287 * Added `-program' and `-front' option to `gltext'.
288 * Added `-shells' to `molecule'.
289 * Fixed text-alpha glitch in `carousel'.
290 * New `pacman': the ghosts can be killed now.
291 * Fixed a bug in screen-grabbing GL hacks where images
292 would be tiled instead of scaled on machines that
293 can't do large textures.
294 * `webcollage' can hit Flickr now.
295 * New (rewritten) implementation of `ifs'.
296 * The unlock dialog can be made to have a "New Login"
297 button that will run `gdmflexiserver'. Experimental!
298 * Fixed non-ASCII display bug in `starwars'.
299 * Configure finds a default for imageDirectory.
300 * "xscreensaver-command -lock" now works even if
301 in "screensaver disabled" mode.
302 * If a bad password is typed while CapsLock is on, the
303 unlock dialog says "CapsLock?" instead of "Sorry".
304 * Mouse motion only counts as activity if the mouse moved
305 more than 10 pixels (so the screen won't unblank every
306 time you bump your desk.)
307 * New mode option "random-same": if you have multiple
308 monitors, this will run the *same* randomly chosen
309 hack on each screen, instead of different ones on each.
310 Changes since 4.19: * New hacks, `fiberlamp', `boing', `boxfit', and
312 * Rewrote `glslideshow' again: should be faster now.
313 * Sped up loading of images in GL programs.
314 * `starwars' uses texture-mapped fonts now.
315 * New `bsod' modes: tru64, hppa, and nvidia.
316 * Updates to `webcollage', `juggle', `pinion',
317 `fireworkx', `sonar', `extrusion', `substrate', and
319 Changes since 4.18: * New hacks, `substrate', `intermomentary', `fireworkx',
321 * New version of `flow'.
322 * Made /proc/interrupts work again on Linux 2.6.
323 * Made `analogtv' not hog the CPU.
324 * Made analogtv-based hacks work properly on PPC/ARM.
325 * Fixed a bad memory leak in `piecewise'.
326 * Minor updates to `sonar', `molecule', `glmatrix',
327 `galaxy', and `webcollage'.
328 * Removed support for GTK 1.x (everyone uses 2.x now.)
329 Changes since 4.17: * Oops, pay no attention to the man behind the curtain.
330 Changes since 4.16: * New hacks, `anemotaxis' and `memscroller'.
331 * Fixed a bad bug that caused `vidwhacker' to never die.
332 * Fixed normals and lighting in `polyhedra'.
333 * Don't reuse the window when changing hacks (to work
334 around bugs in some GL implementations.)
335 * Made `xscreensaver-getimage-file' skip thumbnail-sized
337 * Fixed endian problem in `barcode' on non-x86.
338 * Updates to `webcollage', `apple2', `fuzzyflakes',
339 `atunnel', and `pacman'.
340 * Timing tweaks to `bubble3d', `bouncingcow', `engine',
341 `gltext', `lavalite', `molecule', `spotlight',
342 `sballs', `boxed', `blinkbox', and `circuit'.
343 * Configure updates for Fedora core 2 / xorg 6.7.0.
344 * Compile without warnings under gcc 3.3.3.
345 * I give up: don't blank or lock the screen if we can't
346 get a keyboard grab. In that case, both choices are
348 Changes since 4.15: * New hacks, `polyhedra', `fuzzyflakes', `antinspect',
350 * Minor updates to `webcollage', `bsod', `endgame',
351 `antspotlight', `xmatrix', and `glmatrix'.
352 * Added support for the RANDR (Resize and Rotate)
353 extension to detect when the size of the desktop has
354 been changed while xscreensaver is already running.
355 * Possibly-futile attempt to work around "rdesktop"
357 * Made `xscreensaver-getimage -file' still work even if
358 imageDirectory is unset.
359 * Convert Latin1 to ASCII in `starwars' and `phosphor'
360 (since the GLUT font only has ASCII glyphs.)
361 * Fixed randomization in `noof'.
362 * Added "GetViewPortIsFullOfLies" preference to work
363 around longstanding XFree86 bug #421.
364 * Made `sonar' subnet pinging work properly on bigendian
365 machines (e.g., PPC.)
366 Changes since 4.14: * New hacks, `wormhole', `mismunch', `noof', and
368 * `phosphor' and `apple2' include vt100 emulators now:
369 this means you can do "phosphor -program top", or
370 can use either program as an xterm replacement:
371 "apple2 -text -fast -program 'xemacs -nw'".
372 * `analogtv' (and related) fill the screen better.
373 * The '-gradient' option works in `atlantis' now.
374 * Minor updates to `blinkbox', `queens', `endgame',
375 `glmatrix', `mirrorblob', `blocktube', and `molecule'.
376 * Integrated SuSE's "external passwd helper" support.
377 * Marginally better /tmp handling in various programs.
378 * Updated config defaults for xplanet 1.0.3.
380 Changes since 4.13: * New hacks, `fontglide', `apple2', `xanalogtv', `pong',
381 `gleidescope', `mirrorblob', and `blinkbox'.
382 * New version of `glsnake' (with many more models.)
383 * Another Windows crash in `bsod'; also HVX/GCOS6/TPS6.
384 * New version of `endgame'.
385 * Screen grabbing works on MacOS X.
386 * Various minor fixes.
387 Changes since 4.12: * On Xinerama systems, xscreensaver now runs one hack on
388 each monitor (just like in "real" multi-head mode)
389 instead of running one hack stretching across all the
390 screens. Note that for this to work with any 3rd party
391 screensavers, they must update their "vroot.h" file.
392 * `webcollage' and `vidwhacker' display images using
393 `xscreensaver-getimage' now.
394 * Added `ljlatest' script for use with `starwars' and
396 Changes since 4.11: * New GL hacks, `flipflop', `antspotlight', and
398 * Added VMS to `bsod'.
399 * Compile without warnings in "gcc -pedantic".
400 * Updates to `webcollage' and `queens'.
401 * Fixed a bug that could cause PAM to hang.
402 Changes since 4.10: * New hacks, `hypertorus', `cubestorm', `glknots',
403 `blocktube', and `glmatrix'.
404 * Updates to `cloudlife', `engine', `xmatrix', and
406 * Rewrote `glslideshow': it should work on somewhat
407 wimpier video cards now.
408 * Various portability tweaks.
409 Changes since 4.09: * New hacks, `cloudlife' and `klein'.
410 * Added Apple ][+, HPUX, and OS/390 sessions to BSOD.
411 * Added some Matrix Reloaded text to `xmatrix'.
412 * Updates to `webcollage', `eruption', `jigglypuff',
413 `metaballs', and `endgame'.
414 * Completely ignore the `memoryLimit' setting now,
415 since it was still causing people GL grief.
416 * Various minor fixes.
417 Changes since 4.08: * New hacks, `flyingtoasters', `bouncingcow',
418 `jigglypuff', and `glslideshow'.
419 * More models in `engine'.
420 * Rewrote `xscreensaver-getimage' to remove reliance on
421 external image loaders (xv, chbg, xloadimage, etc.)
422 and to reduce flicker when loading files.
423 * Made `gflux' and `flipscreen3d' be mouse-spinnable.
424 Changes since 4.07: * New hacks, `atunnels' and `piecewise'.
425 * Physics improvement in `fluidballs'.
426 * Various fixes for XDarwin systems (X11 on MacOS X.)
427 * Added -clock option to `barcode'.
428 * Minor fixes to `endgame', `flurry', `flipscreen3d',
430 Changes since 4.06: * New hacks, `flurry', `metaballs', `eruption',
431 `popsquares', and `barcode'.
432 * Minor updates to `maze' for high density mazes.
433 * Added double buffering to `fluidballs' and `whirlygig'.
434 * Bug fixes for running xscreensaver to a remote XFree86
435 display (which nobody would ever do...)
436 * Updated `webcollage' (faster Alta Vista searching.)
437 * Updated `glplanet' so the sun sets in the west.
438 * Updated `sproingies' with smooth, unsegmented surfaces.
439 * Fixed Perl version-sensitivity in
440 `xscreensaver-getimage-file'.
441 * Fixed GTK2 scrolling bug in `xscreensaver-demo'.
442 Changes since 4.05: * New hack, `glblur' (disabled by default, since it
443 requires fast OpenGL texture support.)
444 * New hack, `halftone'.
445 * Updates to `endgame', `queens', `bumps', `glplanet',
446 `engine', and `circuit'.
447 * New version of `menger' that uses far fewer polygons.
448 * Fixed minor bug in `critical' that could cause some
449 bogus X servers to crash.
450 * Better labels in `molecule': the labels now appear to
451 be attached to the atoms, instead of floating in front
453 * Fixed bug that could rarely cause GL hacks to fail to
454 double-buffer (causing intermittent flickering.)
455 * Fixed a relative-URL-parsing bug in `webcollage'.
456 * Fixed a bug that (sometimes) caused the window manager
457 close box to kill `xscreensaver-demo' with a crash
458 instead of a graceful exit.
459 * Updated xscreensaver.pam to the Red Hat 7.3 way.
460 * More Gnome2-related configure crap.
461 * Updated to latest `config.guess' and `config.sub'.
462 * Fixed occasional core dump in `distort'.
463 * Added a Linux fsck failure and kernel panic to `bsod'.
464 * Added MacOS X kernel panic to `bsod'.
465 * Fixed a bug in `bsod' (all bsod bugs are ironic.)
466 * Fixed a bug that caused `xscreensaver-gl-helper' to
467 print a nonsense visual ID with some versions of
468 `printf': this could cause GL programs to display
469 incorrectly (e.g., flickery.)
470 Changes since 4.04: * More `configure' tweaks to try and get things working
471 on systems that both Gtk 1.x and 2.x installed.
472 * New hack, `endgame'.
473 * Minor updates to `gltext'.
474 Changes since 4.03: * Support for GTK 2.x / GNOME 2.x.
475 * The `configure' script will now use `pkg-config' if
476 you have it, in preference to `gtk-config', etc.
477 * New hacks, `lavalite', `queens', and `anemone'.
478 * Minor updates to `spheremonics', `gltext', `xmatrix'.
479 * You can use the mouse to manually spin most of the GL
480 hacks now (when they are displaying in a window.)
481 * Fixed a bug in `webcollage' (due to recent Alta Vista
482 url changes) that was causing it to try and load
483 incorrect image URLs.
484 * Made `xscreensaver-getimage' use gdk_pixbuf if it is
485 available: this means that those hacks that load images
486 will no longer rely on "xv", "xloadimage", etc. This
487 will close a race condition that could sometimes cause
488 your desktop background to be changed; and also makes
489 it possible for those programs to operate on image
490 files when running in windowed mode.
491 * `webcollage' can now be used in conjunction with
492 `driftnet' to display images snooped from your local
493 ethernet instead of obtained from search engines.
494 * Added man pages for all the hacks that didn't have
496 Changes since 4.02: * New hack, `spheremonics'.
497 * Minor updates to `webcollage', `cage', `moebius',
498 `morph3d', `boxed', `circuit', and `helix'.
499 * `pulsar' and `extrusion' can now load texture JPEGs.
500 * `rubik' now does non-square cubes.
501 * `fluidballs' now does various sizes of balls.
502 * `menger' and `sierpinski3d' now also show polygon
504 * `molecule' displays real subscripts in the formulae.
505 * GTK internationalization/localization support.
506 * Better detection of the various versions of libxml.
507 * Upgraded to autoconf 2.53 (from 2.13.)
508 Changes since 4.01: * Plugged a few minor leaks in `xscreensaver' and
510 * New hacks, `cubenetic' and `fluidballs'.
512 * Fixed sphere projection error in `glplanet'; installed
513 a better image of earth.
514 * Added Win2K and MacOS 1 crashes to `bsod'.
515 * Put back previous (better) version of `forest' that
516 was accidentially downgraded in the last release.
517 * New version of `bumps'.
518 * Made FPS computation in GL hacks more efficient: it
519 will influence the results less, thus resulting in
520 higher (but more accurate) reported frame rates.
521 Changes since 4.00: * New hacks: `twang', `glsnake', `boxed', `sballs',
523 * New hacks `apollonian', `euler2d', `juggle',
524 `polyominoes' and `thornbird', from xlockmore.
525 * Merged recent xlockmore changes into `ant', `braid',
526 `demon', `discrete', `drift', `fadeplot', `forest',
527 `grav', `hopalong', `ifs', `laser', `lightning',
528 `lisa', `lissie', `loop', `mountain', `penrose',
529 `rotor', `sierpinski', `slip', `sphere', `spiral',
530 `strange', and `vines'.
531 * Fixed the `gltext' bug that sometimes caused
532 horizontal lines to vanish again. This time for sure.
533 * Sped up `webcollage' by adding a C helper program to
534 replace the PPM pipeline. It also pastes images
535 semi-transparently now.
536 * Added support for the gdk_pixbuf library: if this lib
537 is available, then `blitspin', `xflame', and `flag'
538 can load GIF, JPEG, and PNG images in addition to XPM
540 * Fixed a rare race condition where the desktop-grabbing
541 hacks could sometimes leave the screen wedged, if the
542 user moved the mouse exactly when they were grabbing
543 the screen image (it would un-wedge the next time the
544 saver timed out or was activated.)
545 * Fixed incorrect colors in the screen-grabbing GL hacks
546 (`gflux' and `flipscreen3d'.)
547 * Made SIGHUP restart the daemon process (though using
548 `xscreensaver-command -restart' is still the preferred
550 * Tweaks to `xspirograph'.
551 * Minor configure and portability tweaks.
552 Changes since 3.34: * Redesigned `xscreensaver-demo' GUI: it now includes
553 small-preview and per-hack configuration dialogs.
554 * Added three new modes of operation: `One Screen Saver',
555 `Blank Screen', and `Don't Blank' (in addition to the
556 historical `Random Screen Saver').
557 * Configure now defaults to installing the hacks in
558 <prefix>/lib/xscreensaver/ instead of <prefix>/bin/.
559 (Most distros already did it this way.)
560 * New GL hacks, `menger', `engine', `flipscreen3d'.
561 * Made `sierpinski3d' be more colorful.
562 * New versions of `xmatrix' and `nerverot'.
563 * Fixed a bug in `starwars' that made the font be drawn
564 with thin lines in -root mode.
565 * Fixed a bad colormap bug in `crystal' that could make
566 *subsequent* hacks malfunction!
567 * Made `gflux' able to grab screen images (`-mode grab').
568 * Updated `webcollage' for recent search engine changes.
569 * Removed most command-line options to `xscreensaver':
570 just edit the ~/.xscreensaver file instead.
571 * Improved behavior on multi-screen and Xinerama systems:
572 the mouse now stays on the screen where the user left
573 it, and the password and splash dialogs always appear
574 on the screen that has the mouse.
575 * Made the splash dialog use more Gtk-like colors;
576 made it have only two buttons, "Settings" and "Help".
577 * Made `sonar' understand `.ssh/known_hosts2' format
578 files, and be better about stripping out illegal
580 Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
581 some versions of the GL libraries (appear to) allocate
582 hundreds of megs for every GL program, so `memoryLimit'
583 was causing GL programs to malfunction or crash on
585 * Improved fading on TrueColor XFree86 4.1.x systems.
586 * New GL hack, `circuit'.
587 * Added `fuzz' mode to `decayscreen'.
588 * New version of `whirlygig'.
589 * Added links to `xplanet' and `sphereEversion'.
590 * Fixed rare race condition that could make `sonar' hang.
591 * Fixed potential crash in `speedmine'.
592 * Made `xscreensaver-demo' not crash when imageDirectory
593 was set to a non-existent directory.
594 * Made `xscreensaver-getimage-video' invoke XawTV's
595 `streamer' program better.
596 * Made `phosphor' and `starwars' deal with CR, LF,
597 or CRLF line endings.
598 * Changes for Cygwin compilation environments.
599 * Made `sonar' compile on systems that can't ping.
600 * Configure changes for HPUX 10.20.
601 * Made PAM code work on Red Had 4.2 systems.
602 * Made `xscreensaver-command -deactivate' work when the
603 saver is not active: what that does is reset the idle
604 timer, as if keyboard input had been detected. This
605 was added for the benefit of people writing DVD-playing
606 software: they can now prevent the screensaver from
607 kicking in by sending a -deactivate message once a
608 minute while the movie is playing and not paused.
609 * Various minor portability tweaks.
610 Changes since 3.32: * New hacks, `speedmine' and `whirlygig'.
611 * Sped up `pyro', made the explosions look a bit better.
612 * Added better stars to `glplanet' and `starwars'.
613 * Many internal changes to `webcollage'.
614 * Some new options to `attraction'.
615 * Minor fix to `noseguy' to avoid un-erased pixels.
616 * Rewrote the screen-eraser effects so that they complete
617 in the same amount of time regardless of how slow
618 your X server is (some of them were glacial on servers
620 * Fixed a potential free memory reference that could
621 sometimes cause a crash at startup.
622 * Possibly fixed a problem that could cause the daemon
623 to crash with an X error. I was never able to
624 reproduce this problem, but I think I might have
625 figured out what caused it.
626 * Worked around a problem that caused PAM authentication
627 to fail on some Red Hat 7.x systems.
628 * Added a `memoryLimit' parameter that controls the
629 amount of memory a graphics hack may allocate: if they
630 try to allocate more than this, malloc() will fail
631 (and they will exit or (safely) crash, rather than
632 hogging memory.) Default is 50M.
633 * Made `gnome-help-browser' be the default way to display
634 man pages in `xscreensaver-demo', if running on a
636 Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
637 now operate on randomly chosen image files from disk,
638 or on frames captured from the system's video input,
639 instead of (or in addition to) manipulating images of
641 * Rewrote `vidwhacker' to use the new image-grabbing
643 * Made fading work on TrueColor XFree86 4.x systems.
644 * Fixed a subtle rendering bug in `atlantis' (the fish
646 * Made `atlantis' have a texture simulating light
647 reflections from the surface of the ocean.
648 * Fixed up label placement in `molecule'.
649 * Better color bars in `xteevee'.
650 * Made `install-strip' not try to strip scripts.
651 Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
652 the documentation to reflect the fact that all your
653 DPMS settings are now belong to xscreensaver.
654 * Fixed the `xscreensaver.spec' file so that `--force'
656 * New versions of `rotzoomer' and `nerverot'.
657 * Fixed an OSF/1 compilation problem in `molecule'.
658 Changes since 3.29: * New hacks, `molecule', `dangerball', and `rotzoomer'.
659 * New version of `gflux'.
660 * Made `gltext' able to display the current time.
661 * Fixed a floating-point-precision problem in `gltext'
662 that sometimes caused horizontal lines to vanish.
663 * Removed the `-window-id' option from the hacks:
664 it never worked right, and was unnecessary.
665 * Made the `starwars' hack use thicker lines, antialias
666 the text, and fade out at the far edge instead of just
668 * Fixed an SHM segment leak in `moire'.
669 Changes since 3.28: * Better rendering of the new logo.
670 * New hack, `gltext'.
671 * Added `-planetary' option to `gears', to draw a
672 different kind of gear system.
673 * Made motion and rotation be smoother in `gears',
674 `glplanet', `moebius', `rubik', and `sierpinski3d'.
675 * Improved coloration in `sierpinski3d'.
676 * Made the GL hacks react to window size changes.
677 * Made most of the GL hacks take a -fps option (like
678 `pulsar' did), so you can use them to benchmark your
680 * Fixed the previous fix to `sonar'.
681 * Minor fix to `nerverot'.
682 Made sonar able to ping hosts on DEC OSF1.
683 * Eliminated a bogus "didn't get enough colors" warning
684 in some of the hacks.
685 Changes since 3.27: * New logo for xscreensaver!
686 * New hacks, `starwars' and `stonerview'.
687 * Made the motion of the bouncing ball in `stairs' be a
689 * Made newly-added screenhacks be added to .xscreensaver
690 automatically: if there are hacks in the app-defaults
691 file that are not also in ~/.xscreensaver, they will
692 be added to the end of the list.
693 * Redid the `Screensaver Options' part of the control
694 panel; xscreensaver now lets you configure your DPMS
696 * Fixed some Makefile problems with non-GL builds.
697 * Fixed detection of MesaGL for version 3.3.
698 * Better workaround to Red Hat 7.0's broken gcc.
699 * Added Sparc Solaris kernel panic to `bsod'.
700 Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
701 * Fixed a free-memory-reference bug in `sonar'.
702 * Better error handling when there are no suitable GL
704 * Added diagnostic dialog when xscreensaver-demo is
705 unable to launch xscreensaver (e.g., when running as
707 * Fixed a bug that caused screenhack argument changes
708 to be ignored when xscreensaver-demo was running as
709 root (if "root" and "nobody" have different home
711 * Made the programs default to ":0" if $DISPLAY is unset.
712 * Made the `-verbose' output include information about
713 which server extensions were supported at compile time.
714 * Worked around Red Hat 7.0's broken gcc 2.96.
715 * Updated default delays on the GL hacks to look better
716 on machines with super-fast 3D hardware.
717 * Install `screensaver-properties-capplet' to work around
718 the usual egregious GNOME lossage.
719 Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
720 xscreensaver-demo (Gtk version only.)
721 * New hacks `hyperball', `xrayswarm', and `gflux'.
722 * New versions of `nerverot', `galaxy', and `hypercube'.
723 * Small fixes to `phosphor', `shadebobs', `xflame',
725 * Added external helper program `xscreensaver-gl-helper'
726 to figure out which X visual to use for OpenGL
728 * Configure updates for XFree86 4.0, and for BSD.
729 * Made it be more tolerant of bogus /etc/group files.
730 * When installing the PAM config file, first try to just
731 copy an existing "xdm" or "login" config file, so that
732 xscreensaver does authentication in the same way as the
734 Changes since 3.24: * New hack, `nerverot'.
735 * Added BSD kernel panic to `bsod'.
736 * New version of `shadebobs'.
737 * New version of `petri'.
738 * Updated `webcollage' to handle recent Altavista URL
739 format changes; made it search the AP photo gallery.
740 * Revamped command-line options of `sonar' and made it
741 properly handle subnets.
742 * The `bubbles' hack can now trickle up or down the
744 * The `xsublim' hack can now read its text from programs.
745 * Support for GLE version 3 in `extrusion'.
746 * Fixed compilation problems in `maze'.
747 * Fixed a rare crash in `flow'.
748 * Fixes for minor installation problems.
749 Changes since 3.23: * Added `-ignorant' option to `maze' hack.
750 * Updates to `critical', `bsod', `xflame', and `flow'.
751 * Added support for Kerberos 5 (via its Kerberos 4
752 compatibility layer.)
753 * Fixed a bad leak in `xteevee'.
754 * Updated `webcollage' to handle recent Altavista URL
756 * Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
757 since they were confusing people: all changes are now
759 * Made xscreensaver-demo install itself into the Gnome
761 Changes since 3.22: * Fixed some misplaced text fields in the Motif version
762 of xscreensaver-demo; fixed a crash in the Gtk version
763 that would happen if the programs list was empty.
764 * Fixed a recently-introduced bug in `pulsar'.
765 * Made `sierpinski3d' use solid tetrahedrons instead of
767 * Added `-trace' option to `xmatrix'.
768 * Added new hacks `xteevee' and `xspirograph'.
769 Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
770 * Rewrote the Motif version of xscreensaver-demo to
771 match the new Gtk version.
772 * The Athena toolkit is no longer supported.
773 Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
774 * Fixed a few visual selection bugs. I think the proper
775 GL visual should be used with nVidia systems now.
776 * Made the Makefiles obey $install_prefix.
777 * Made the `xscreensaver.spec' file able to generate both
778 GL and non-GL packages simultaneously.
779 Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
780 * Made `xscreensaver-command -exit' be silent when no
781 screen saver was running (instead of complaining.)
782 * Made `webcollage' and `vidwhacker' use `xloadimage'
783 when available (in addition to `xli' and `xv'.)
784 * Improved memory usage in `petri' and gave it a hard
785 cap on how much memory it can allocate.
786 * Added `-watch' option to `xscreensaver-command'.
787 * Made `xscreensaver-demo' come up with the
788 most-recently-run hack selected by default.
789 * Rewrote the Gtk version of `xscreensaver-demo'.
790 It's a lot easier to use now.
791 * Extended the format of the programs list in the
792 .xscreensaver file, for the benefit of the new
793 capabilities of `xscreensaver-demo'.
794 NOTE: you might want to delete your ~/.xscreensaver
795 file and allow it to be re-created! The old one
796 should still work, but xscreensaver-demo won't be as
798 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
799 * New hack, `extrusion'.
800 * Some of the web sites that `webcollage' was using as
801 its sources changed formats; tweaked it to understand
803 * Added typeahead in the password dialog: if the screen
804 is locked, and you unlock it by typing a character,
805 that key will be automatically inserted in the
806 password dialog (unless it is Return, Enter, Space,
807 or a non-printing key like Shift.)
808 * Made `xmatrix' take a `-small' option, since some
809 folks with tiny screens prefer a smaller font.
810 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
811 * Added `ccurve', `blaster', and `bumps' hacks.
812 * Replaced `forest' hack with a rewritten version.
813 * Worked around a Xinerama server bug.
814 * Fixed a bug I introduced in 3.10 that caused some
815 hacks to print out superfluous warnings about not
816 having gotten enough colors.
817 * Made `sproingies' obey the `-delay' option.
818 * Fixed a portability bug in `shadebobs'.
819 * Made `webcollage' and `vidwhacker' use `xli' in
820 preference to `xv', if it is available.
821 * Added a new source of images to `webcollage'.
822 * If running under KDE, xscreensaver will add itself to
823 KDE's list of screensavers (via xscreensaver.kss.)
824 * Improved detection of GL libraries.
825 * Made the password dialog include the date and time.
826 Changes since 3.16: * New version of `webcollage' -- deals better with
827 corrupted images, and can use an http proxy.
828 * New hack, `xsublim' (run it in the background,
829 rather than adding it to the programs list.)
830 * The xscreensaver daemon was leaking a file descriptor
831 each time you edited your .xscreensaver file. Fixed.
832 Changes since 3.15: * New version of `shadebobs'.
833 * Improved image selection in `webcollage', and sped it
835 * Made configure find the right version of perl.
836 * Rewrote the CGI part of `webcollage'.
837 * `make clean' was deleting some things it shouldn't.
838 * Fixed a typo in the default programs list.
839 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
840 * Added a `-stdout' arg to `vidwhacker' so that it can
841 be used in a pipeline.
842 * Made `petri' use less memory.
843 Changes since 3.13: * Various improvements to the Gtk port.
844 * Turned off PAM by default on Solaris, since PAM seems
845 generally to be misconfigured out-of-the-box.
846 * Made the `--without-gtk' configure option work.
847 * Made configure check the Gtk version number, since it
849 * Fixed a bug in the code that attempted to prevent
850 changes of screen resolution while the screen is
852 * Fixed a race condition in `xscreensaver-demo' that
853 could cause an X error at startup.
854 * Added `-transparent' option to `deluxe'.
855 * Added `petri' hack.
856 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
857 * Made it possible to build Motif, Gtk, and Athena
858 versions of `xscreensaver-demo' in the same directory
859 without reconfiguring.
860 * Made `xscreensaver-demo' chase symlinks before writing
861 the .xscreensaver file, so that if .xscreensaver is
862 itself a symlink, the underlying file will be replaced
864 * Some Makefile and configure tweaks for Solaris and
866 * Made it possible to set the fire color in `xflame'.
867 * Made transparency work in TrueColor (for `goop' and
869 * Fixed a multi-head bug introduced by the virtual
871 Changes since 3.11: * Made it so that you can't scroll the screen while the
872 lock dialog is up (with XFree86 virtual viewports.)
873 * Fixed a bug in `flag' that caused bob's chin to get cut
874 off after a few iterations.
875 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
876 less like a computer screen and more like the
877 typewritten paper it's supposed to be.
878 * New version of `pulsar'.
879 * Fixed Solaris compilation problem in `phosphor'.
880 * Made xscreensaver notice XFree86's virtual root window
881 hack, so that if the X server's root window is larger
882 than the monitor's displayable resolution, the screen
883 saver will limit itself to the area that actually
884 appears on the screen.
885 * Made the xscreensaver daemon do a better job of
886 picking the visual class that should be used for GL
887 programs. Less user intervention should be needed
888 now: you can use the logical visual name `GL' instead
889 of having to figure out by hand which one to use.
890 * Oops, the visual was defaulting to "best" instead of
891 "default", because the .xscreensaver file was not being
892 loaded quite early enough.
893 * Made configure figure out how to build icmp ping
894 support into the `sonar' hack automatically.
895 * Made warnings about not being able to read shadow
896 passwords not be printed if compiled with PAM support.
897 * Improved PAM startup diagnostics.
898 * Worked around the Solaris PAM bug that was causing
899 crashes there, so now PAM is turned on by default.
900 * Made configure detect the number of arguments that
901 pam_strerror() takes, since on Linux, this apparently
902 changed between 2.0 and 2.2, sigh.
903 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
904 as well as "keyboard".
905 * Made xscreensaver notice when there has been a sudden
906 large jump in wall-clock time, and if so, lock right
907 away, instead of waiting for "lockTimeout" to expire
908 first. (Laptops need this for safer recovery from
910 * Added `-throttle' option to `xscreensaver-command'.
911 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
912 * Fixed a bug in the color allocator that sometimes
913 caused `starfish' to fall back to monochrome.
914 * Reduced the amount of code that runs before root
915 privileges are disavowed: "normal" and "shadow"
916 passwords now do some initialization as root, but the
917 PAM and Kerberos authorization schemes will be
918 initialized while running as "nobody". Supposedly
919 this closes a potential security hole when using
921 * Added some more sanity checking to configure.
922 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
923 `spotlight', and `critical' hacks.
924 * Added some new modes to `decayscreen'.
925 * Made `deluxe' work in monochrome.
926 * Generalized usage of the Double-Buffer server extension
927 in several hacks (`compass', `deluxe', `interference',
928 `kumppa', and `moire2'.)
929 * Fixed another visual-depth problem in `rd-bomb'.
930 * The screen saver will now defer blanking if neither
931 the keyboard nor the mouse could be grabbed. Instead,
932 it will just try again in a few minutes. This fixes
933 a bad interaction between xscreensaver and programs
934 like VMware that hold the mouse and keyboard grabbed
936 * Added a new erase mode (expanding spiral.)
937 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
938 * Added `penetrate' and `deluxe' hacks.
939 * When linking against Motif 2.x, also link against XPM.
940 * Added support for using /proc/interrupts for idle
941 detection on Linux. Now xscreensaver shouldn't kick
942 in when the user is active on a non-X virtual console.
943 * Upgraded to autoconf 2.13.
944 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
945 in properly; check for _Xsetlocale in -lXintl.)
946 * Portability fixes for sonar.c.
947 * Fixed a compilation problem when you have GL but don't
949 * Made configure notice when MesaGL requires -lpthread.
950 * Made `flame' ignore SIGFPE (not sure if this is the
951 right fix; it seems only to be needed on FreeBSD.)
952 * Kludged `rd-bomb' work on visuals that are of depth 24
953 but that *do not* support pixmaps of depth 32.
954 * Fixed `halo' to work properly in TrueColor.
955 * Changed `xscreensaver.spec' to install the hacks in
956 /usr/X11R6/lib/xscreensaver/ by default, since that's
957 where recent Red Hat distributions put them.
959 * Updated versions of `crystal', `hopalong', and `flow'
961 * Imported `demon' and `loop' modes from xlockmore.
962 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
963 it was always installing a colormap if the
964 `installColormap' preference was set, meaning that
965 `xearth', `xv' and friends were using the wrong
966 colors on 8-bit systems.
967 * Turned off HAVE_PING in `sonar', since it compiles
968 on some Linux systems, but not others of similar
970 Changes since 3.04: * Fixed an off-by-1 in `distort'.
971 * Added `sonar' hack.
972 * New version of `glplanet' (with stars.)
973 * Made all hacks exit when you type `q' or `ESC' at them,
974 and made them obey the WM_DELETE_WINDOW ClientMessage.
975 * Fixed a nonfatal buffer overrun in lament (note:
976 lament still doesn't work with MesaGL 3.0: it dies in
977 lambda_textured_triangle1(), which is Mesa's bug, not
979 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
980 for other folks to generate RPMs.
981 * Made the password code work on HPUX in the situation
982 where: ``enhanced security'' is available; but not
983 used; but the user typed a password more than 8
984 characters long anyway. FTSOHPUX.
985 Changes since 3.02: * Made locking work when passwd aging is enabled.
986 * Added support for PAM (Pluggable Authentication
987 Modules.) It is still turned off by default, though,
988 since it doesn't seem to work on Solaris 2.6, and has
989 been behaving erratically on Red Hat 5.1.
990 * Made each possible authentication method be tried in
991 turn until one succeeds; this means that Kerberos is
992 being used, we will first check Kerberos, and if that
993 fails, will then consult the local password file.
995 * Save and restore the bits under the passwd dialog,
996 to avoid leaving a black rectangle behind when
997 unlocking is cancelled.
998 Changes since 3.01: * Not everyone has sys/select.h, sigh...
999 Changes since 3.00: * Some fixes to `reflect'.
1001 * Made it log unsuccessful attempts to unlock the screen
1003 * Fixed a bug where `xscreensaver-demo' could be seeing
1004 a different programs list than `xscreensaver' did.
1005 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
1006 or Athena: demo-mode and the preferences panel are no
1007 longer built in to the daemon, but are now handled by
1008 an external program, `xscreensaver-demo'.
1009 (I decided that this, along with the recent addition
1010 of the `.xscreensaver' config file, justified bumping
1011 the version number to 3.00, since this is a fairly
1012 major architectural change.)
1013 * Lines in the `*programs' resource may now begin with
1014 the character "-", meaning "don't run this hack."
1015 In this way, it's possible to disable a hack without
1016 throwing away the information about it (making it
1017 easier to change your mind later.) Eventually the
1018 preferences/demo mode GUI should represent this as a
1019 checkbox or something.
1020 * Fixed a short race condition where it was possible for
1021 xscreensaver to die with a BadWindow error if it was
1022 blanking the screen just as another window was being
1024 * Made it possible to disable specific modes in `bsod'.
1025 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
1026 many valves. Made the viewpoint in `pipes' be selected
1027 randomly instead of always being -10 degrees.
1028 * Fixed a bug in the XSHM code, in the case where the
1029 server supports the XSHM extension but is not the same
1030 machine as the client.
1031 * Made `rd-bomb' default to taking up the whole screen.
1032 * Made it not try to do fading/unfading if no PseudoColor
1034 * Initial attempt at supporting VT-locking (doesn't work
1036 * Eliminated the `captureStdout' resource; now
1037 `captureStderr' controls both streams.
1038 * Added `-capture-stderr' and `-no-capture-stderr'
1039 command-line arguments.
1040 * Added `glplanet' hack.
1041 * When a hack is selected with `xscreensaver-command
1042 -select', that hack will be used until further notice
1043 (until the saver turns off, or another activation
1045 Changes since 2.32: * Made `xscreensaver-command' print error messages:
1046 the xscreensaver daemon now responds to ClientMessage
1047 events by writing a response message on a window
1048 property, instead of just writing to its stderr.
1049 * Made the ~/.xscreensaver file be automatically reloaded
1050 when the file date changes.
1051 * The password dialog and splash screen no longer depend
1052 on Motif or Athena. This should clear up a number of
1053 focus problems, and is the first step on the path
1054 toward moving all of the Motif/Athena/whatever code
1055 out of the xscreensaver daemon, and into external
1057 * Don't complain about LessTif 0.86 any more, since the
1058 new password dialog makes that problem go away.
1059 * Configure tweaks for Irix 6.5, SunOS 5.something.
1060 * New `-reflect' option to `distort'.
1061 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
1062 so that the Preferences panel can save its settings.
1063 * New version of `rubik'.
1064 * Added `-select N' argument to `xscreensaver-command'.
1065 * Oops, left out some of the `bubbles3d' files...
1066 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
1067 * Made configure warn against MesaGL 2.6.
1068 * Fixed X error at startup when using non-default visual.
1069 * New version of `crystal', `ant', and `atlantis' from
1071 * New hack, `bubble3d'.
1072 * Added some new modes to `bsod'.
1073 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
1074 to be after Motif instead of before (Lesstif on Irix
1076 Changes since 2.28: * Work around a bash bug in configure.
1077 * Tweaked HPUX paths again. FTSOHPUX.
1078 * Made configure recommend against LessTif 0.86, due
1079 to a bug in that version that causes a security hole
1080 in the screen locking code. LessTif 0.87 will fix it.
1081 * Made all of the `--with' options to `configure' accept
1082 a directory option as well (so that --with-motif=/FOO
1083 will add -I/FOO/include -L/FOO/lib). I believe this is
1084 the Configure Party Line of how do to such things.
1085 * Fixed a bug where the mouse was left un-grabbed
1086 after the first time the graphics hack was changed
1087 (simplified all of the mouse-grabbing logic.)
1088 * Maybe possibly perhaps made `vidwhacker' really not
1089 leave stray xv windows around. This time for sure.
1090 * Added a new erase mode (random dots fizzling out.)
1091 * Added `-prefs' argument to `xscreensaver-command',
1092 that brings up the Preferences dialog directly (it
1093 seems that nobody ever noticed the `Preferences' button
1094 on the Demo Mode dialog, maybe this will help.)
1095 * Added a splash screen. Turn it off with *splash:false.
1096 Changes since 2.27: * Better macsbug text in `bsod'.
1097 * New version of `distort' with many new modes.
1098 * Plugged a leak in `coral'.
1099 * Tweaked configure for HPUX.
1100 * Removed some compiler warnings.
1101 * More consistent usage of stderr versus stdout.
1102 * More diagnostics should an X error occur.
1103 * Fixed a possible crash in SGI-specific unfading code.
1104 Changes since 2.26: * Improved version of `distort'.
1105 * Made `lament' compile against OpenGL 1.0 (though it
1106 still requires 1.1 to work properly.)
1107 * Updated my email address and home page.
1108 Changes since 2.24: * Improved motion in `rd-bomb'.
1109 * Added XSHM (shared memory extension) support to the
1110 `distort', `interference', `moire', `rd-bomb', and
1111 `swirl' hacks, which speeds them up a bit.
1112 * Added `lament' hack.
1113 Changes since 2.23: * Tweaked the order of the -L options again.
1114 * Cleaned up configure's `--help' message.
1115 * Added `kumppa' hack.
1116 * Smarter maze-solving algorithm in `maze'.
1117 * Took `xlyap' out of the default list of hacks, since
1118 it's just incredibly buggy (and slow.) Maybe someday
1119 someone will fix it...
1120 * Added `distort' hack, but didn't add it to the default
1121 list (yet) because it's still too slow.
1122 * Made the Athena demo dialog look more like the Motif
1123 version; it has a text-entry field now, too.
1124 * Made the Athena password dialog echo asterisks, like
1125 Motif does, instead of using a flyspeck font.
1126 * Some random configure tweaks.
1127 * Added a `timestamp' resource that makes the `-verbose'
1128 messages include the time at which they were printed.
1129 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
1130 let the user's "*background" resource show through.
1131 Fixed it in a different way.
1132 Changes since 2.21: * Added support for the DPMS server extension (Display
1133 Power Management System.)
1134 * Made configure advertize the `--enable-subdir' option a
1135 little more, since that seemed to cause some people
1136 stress. Also, made that directory be built into the
1137 xscreensaver executable, as a hardcoded prefix to
1138 $PATH. (Might help, shouldn't hurt.)
1139 * Made configure prefer the two-arg gettimeofday to the
1140 one-arg version, since AIX doesn't have any prototypes.
1141 * Made it work with Xaw3d (the 3D Athena library.)
1142 * Made `make install' create directories as necessary.
1143 * New version of lmorph from Sverre.
1144 * Added `crystal' and `discreet' hacks from xlockmore.
1145 * Added a new mode to `bsod'.
1146 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
1147 (It now describes the two states as "screen blanked
1148 since..." and "screen non-blanked since..." instead of
1149 "active since..." and "inactive since..." which a lot
1150 of people interpreted as meaning the opposite of what
1152 * Improved some error messages, in the hopes of making
1153 the distinction between the xscreensaver and
1154 xscreensaver-command programs more obvious.
1155 * Rewrote (and reorganized) parts of the xscreensaver and
1156 xscreensaver-command manual pages.
1157 * Renamed xscreensaver's `-lock' command-line option to
1158 be `-lock-mode', to avoid confusion with the `-lock'
1159 option to xscreensaver-command, which does a totally
1161 * Removed xscreensaver's `-demo' command-line option for
1162 a similar reason; use `xscreensaver-command -demo'
1164 * Disabled SGI's ``scheme'' nonsense in a better way than
1165 fully-qualifying the background colors in every single
1167 * Fixed some other minor cosmetic problems when *sgiMode
1169 * Fixed an X error in `bsod -root' (how ironic...)
1170 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
1171 grabbed properly (meaning the window manager menu could
1172 pop up over the demo-mode display.)
1173 * Fixed a bug that made the stderr output sometimes get
1175 * Fixed a bug that made the demo-mode scrollbar move too
1177 * Protected against a possible buffer overflow.
1178 * Made `vidwhacker' not leave stray xv windows around.
1179 * New version of `ant' so that Bagley doesn't calve.
1180 * Make configure on AIX get XShm from the right library.
1181 Changes since 2.18: * One file was missing from the tar file. Fixed.
1182 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
1183 * Added `epicycle' hack.
1184 * Added `interference' hack.
1185 * Added `truchet' hack.
1186 * Added `bsod' hack.
1187 * Added some new modes to `vidwhacker'.
1188 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
1189 can draw on arbitrary externally-provided windows.
1190 * Synched with xlockmore 4.11a01.
1191 * Added `flow' hack.
1192 * Added `atlantis' GL hack.
1193 * Renamed `puzzle' hack to `jigsaw', since xlock already
1194 had a different mode called `puzzle'.
1195 * Made it self-configure properly when Motif 2.1.0 is
1196 being used (requires -lXp now, sigh...)
1197 Changes since 2.15: * Made `flag' able to do XPM images.
1198 * New look for the xscreensaver logo (`xroger').
1199 * Fixed compilation error on Suns with adjunct passwords.
1200 * Got multi-architecture builds working again.
1201 * Some configure tweaks for building on HPUX and Solaris.
1202 * Fixed bug in decayscreen.
1203 * Fixed typo in passwd.c.
1204 * Made `cynosure' not die when colormap is full.
1205 Changes since 2.14: * Added `cynosure' hack.
1206 * Added `moire2' hack.
1207 * Tweaked `erase.c' some more.
1208 * Made unfading a bit smoother.
1209 * Added `vidwhacker' hack (not installed by default.)
1210 * Added `stairs' hack.
1211 * Split `escher' into `cage' and `moebius', as per
1213 * Changed subprocess handling to use sigaction() instead
1214 of signal() if it's available (this is necessary for
1215 SCO but should work fine on other systems too.)
1216 * Various other tweaks.
1217 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
1218 * Put in some kludges to work around a LessTif bug.
1219 * XScreenSaver is known to work with LessTif 0.82 now.
1220 * Made fading work on high-end SGI video hardware.
1221 * Fixed another SGI-specific bug in screen grabbing;
1222 will the madness never cease?
1223 * Fixed another crash in `xlyap'.
1224 Changes since 2.12: * Made `decayscreen' do directions other than down.
1225 * Improved `puzzle'.
1226 * Fixed a crash in `xlyap'.
1227 * Added CDE info to the man page, removed `cde.txt'.
1228 * Configure tweaks for Zippy.
1229 * Turned off the signal handling in `bubbles' because
1230 it was sometimes failing to die.
1231 * Added `hacks/xscreensaver-sgigl.c' to make it possible
1232 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
1233 with xscreensaver. Finally!
1234 * Fixed a buffer overrun in the locking code that some
1235 wily, malicious cracker must have slipped in.
1236 * Disabled Motif drag-and-drool in the dialog box
1237 buttons, since it's broken in some old versions of
1239 Changes since 2.11: * Added `README.debugging'.
1240 * Added `puzzle' hack.
1241 * Added `xlyap' hack.
1242 * Added `default-n' as a visual name, so that one can
1243 have -install on by default, but turn it off for
1244 certain poorly-behaved hacks (like xv.)
1245 * Added support for grabbing frames of external video
1246 (on SGI) to the screen-grabbing hacks (decayscreen,
1247 slidescreen, slip, blitspin, and puzzle.)
1248 * Improved look of tiles in `slidescreen'; fixed its
1249 color allocation problem.
1250 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
1251 * Added `lissie', `mountain', `triangle', `worm',
1252 `rotor', and `ant' from xlockmore.
1253 * Updated `sierpinski', `galaxy', and `lisa'.
1254 * Thickened the lines in `braid' and `lmorph'.
1255 * Updated VMS makefiles.
1256 * Renamed `fract' to `vines'.
1257 * Added `xjack' hack.
1258 * Made a few more hacks use erase.c, and added a few
1260 * Fixed compilation problem with Sun's version of OpenGL.
1261 * Added ability to use sigaction() instead of signal()
1262 to work around a SCO kernel bug.
1263 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
1264 * Configure tweaks for *BSD.
1265 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
1266 * New version of `maze' with some new algorithms.
1267 * New colorized version of `rocks'.
1268 * Fixed a bug in qix on 64-bit machines.
1269 * Fixed a bug in the -time option.
1270 * Fixed a bug in configure related to LessTif.
1271 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
1272 * Made multi-architecture ($VPATH) builds work properly.
1273 * Merged new GL stuff from xlockmore (rubik, morph3d.)
1274 * Fixed intermittent crashes in `imsmap' and `munch'.
1275 * Added `fadeplot' hack from xlockmore.
1276 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
1277 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
1278 configure to detect the extra-random -Xss library.
1279 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
1280 * Fixed low-color behavior of `goop', `pyro', `starfish',
1281 `greynetic', `flame', `halo', and `moire'.
1282 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
1283 * Added `munch' hack.
1284 * Added basic dependencies to the Makefile.in files.
1285 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
1286 * Made the yow/fortune program be a configure option.
1287 * Various configure tweaks.
1288 Changes since 2.00: * Added `goop' and `starfish' hacks.
1289 * Added colomap cycling to `halo'.
1290 * Made `attraction' use the new colormap allocator.
1291 * Added better $PATH diagnostics.
1292 * There was a bug in frand! Color selection should be
1294 Changes since 1.34: * Converted to use `configure' instead of `imake'.
1295 * ANSI C is now required.
1296 * Added Kerberos locking support, from Nat Lanza.
1297 * Made the stderr text use overlay planes, if possible.
1298 * Reworked the xlockmore compatibility stuff again.
1299 * Added `gears', `superquadrics', `escher', `pipes',
1300 and `sproingies' hacks (depend on OpenGL.)
1301 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
1302 Changes since 1.32: * Made it work with multi-headed displays.
1303 * Generalized sub-process management (Unix sucks!)
1304 * Added interactive mouse frobbing to Julia.
1305 * Added (untested) support for HPUX shadow passwords.
1306 * Made normal non-shadow passwords be checked if the
1307 shadow passwords aren't accessible for some reason.
1308 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
1309 made it possible to specify the desired visual on a
1311 * Cleaned up / restructured the driver: no more globals.
1312 * Made the Motif and Athena dialogs share more code.
1313 * Probably fixed some Athena colormap-installation bugs.
1314 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
1315 * Fixed divide-by-zero in bright random colormaps.
1316 * Added an improved version of xlock's `flag' hack.
1317 * Made unfading work better, and not flicker on SGIs.
1318 * Added `sphere', `forest', `lisa' hacks from xlockmore.
1319 * Added (untested) support for SunOS Adjunct passwords.
1320 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
1321 * Cleaned up xlockmore compatibility layer.
1322 * Made `blitspin' able to grab an image off the screen.
1323 * Ported `swirl' and `bouboule' hacks from xlockmore.
1324 * Made the driver more careful about not leaving bits on
1325 the screen, or allowing other windows to raise
1326 themselves: it now re-blanks the screen every so often.
1327 * Added `-time' option to `xscreensaver-command'.
1328 * Improved SGI screen-grabbing some more: now it can grab
1329 TrueColor screens into PseudoColor windows and have the
1330 colors still come out semi-reasonably.
1331 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
1332 SGIs when windows of different visuals are present, by
1333 using the XReadDisplay() extension to get a true 24-bit
1334 image out of the frame buffer.
1335 * Made `noseguy' be in color, if compiled with XPM.
1336 * Ported `braid', `drift', `fract', `galaxy', `grav',
1337 `ifs', `julia', `laser', `lightning', `penrose',
1338 `sierpinski', `slip', `spiral', and `strange' hacks
1340 * Merged `hopalong' hack with a more recent version.
1342 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
1343 * Merged in support for non-Motif locking and demo mode.
1344 * Made `blitspin' and `bubbles' work in TrueColor.
1345 * Fixed a stupid bug I introduced in `imsmap'.
1346 * Added `poly' and `gravity' options to `qix'.
1347 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
1348 * Made `fade' and `unfade' work on 8-bit SGIs.
1349 * Made the dialog boxes more Motify.
1350 * Added `bubbles' hack.
1351 Changes since 1.25: * Added `lmorph' hack.
1352 * Added viscosity and mouse-control to attraction.
1353 * Fixed possible bad color choices in qix and attraction.
1354 * Added ramp-mode to halo.
1355 * Added a new RNG, which is faster and more portable
1356 than using the RNG in libc.
1357 * Made locking work on SCO.
1358 * Various other minor tweaks that I don't remember.
1359 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
1360 and present them on the screensaver window itself.
1361 * Made demo mode work correctly with non-default visuals
1362 and color maps, instead of always using the defaults.
1363 * Added -visual argument to all included screenhacks.
1364 * Support for the R6 MIT-SCREEN-SAVER server extension.
1365 * Made the demo mode list scroll properly.
1366 * Added `pedal' hack.
1367 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
1368 decayscreen, and xroger. Fixed apparent conservation-
1369 of-mass problem in pyro; made the shrapnel round.
1370 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
1371 Changes since 1.21: * Minor tweaks for X11R6.
1372 * Fixes for non-default visuals.
1373 Changes since 1.20: * Fixed bug in color blitspin; added default image.
1374 * Added diagnostics to noseguy. Fixed off-by-one
1375 error in flame. Added some missing casts.
1376 Changes since 1.18: * Added `flame' hack.
1377 * Fixed a minor Motif dialog text field bug.
1378 * Fixed yet another XPointer-not-defined-in-R4 bug.
1379 Changes since 1.17: * Added support for shadow password files.
1380 * Fixed some Motif-related locking bugs.
1381 * Added diagnostics when locking is disabled.
1382 * Made blitspin able to use the XPM library.
1383 * Added `decayscreen' hack.
1384 Changes since 1.16: * Added `halo' hack.
1385 Changes since 1.15: * Portability fixes.
1386 Changes since 1.14: * Broke the driver up into more source files.
1387 * Moved the hacks into their own directory.
1388 * Made all `time' parameters accept the 00:00:00 syntax,
1389 so that even the parameters which are normally read as
1390 minutes can be specified in seconds.
1391 * Added colormap cycling to `imsmap'.
1392 * Made hyper work with K&R compilers.
1393 Changes since 1.13: * Added `orbit' option to `attraction' hack.
1394 * Added `lock-timeout' option.
1395 * Cleaned up options of `maze' hack.
1396 Changes since 1.8: * Added demo mode, and locking.
1397 * Added `maze' hack.
1398 * Added `norotate' option to `rocks' hack.
1399 Changes since 1.4: * Works when run from XDM before anyone logs in.
1401 * Can use `xv' as a slideshow without using up colormap
1402 entries while the screen is not blanked.
1403 * Fixed a BadDrawable error in non-XIdle mode.
1404 * Added `blitspin' and `imsmap'.
1405 Changes since 1.0: * Current list of included hacks is now: qix, helix,
1406 rorschach, attraction, greynetic, rocks, pyro,
1407 hopalong, and noseguy.
projects / xscreensaver / blob