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 5.19: * Support for iPhone 5 screen size.
42 * Fixed modifier key handing in Apple2.app and
43 Phosphor.app on MacOS.
44 * Various minor bug fixes.
45 Changes since 5.18: * MacOS 10.8.0 compatibility.
46 * iOS performance improvements.
47 Changes since 5.17: * iOS responds to shake gestures to randomize.
48 * iOS can load images from your Photo Library.
49 * iOS has clickable Wikipedia links in Settings panels.
50 * Made `pipes' be ridiculously less efficient, but spin.
51 * Added better mouse control to `rubik', `cube21',
52 `crackberg', and `julia'.
53 * Cosmetic improvements to `queens' and `endgame'.
54 * `sonar' can now ping local subnet on DHCP.
55 * Most savers now resize/rotate properly.
57 Changes since 5.16: * More iOS tweaks.
58 * Fixed some compilation problems.
59 * Enlarged the texture image for `lament'.
60 Changes since 5.15: * Ported to iPhone and iPad.
61 * XInput devices now also ignore small mouse motions.
62 * Loading images via RSS feeds is much improved.
63 * Various minor fixes.
64 Changes since 5.14: * New hacks, `hilbert', `companioncube' and `tronbit'.
65 * Image-manipulating hacks can now load from RSS or Atom
66 feeds: `imageDirectory' may contain a URL.
67 * Updated `webcollage' for recent search engine changes.
68 * `phosphor' and `apple2' can now be run as standalone
69 terminal emulator applications on MacOS.
70 * `photopile' sped up.
71 * New molecule in `molecule'.
72 * "Upgraded" to XCode 4.0, which means that MacOS 10.4
73 PPC builds are impossible, and Intel is now required.
74 * Turned on LC_CTYPE on Linux; maybe Japanese password
76 Changes since 5.13: * Fixed crash in Blank Only Mode when DPMS disabled.
77 * Added "Quick Power-off in Blank Only Mode" option.
79 Changes since 5.12: * Optionally enabled full-scene OpenGL antialiasing.
80 Set the resource `*multiSample' to true if doing so
81 doesn't kill performance with your video hardware.
82 * New version of `glhanoi'.
83 * Image-loading hacks that display the file name now also
84 display the sub-directory (xscreensaver-getimage now
85 returns relative paths under imageDirectory).
86 * Passwords that contain UTF-8 non-Latin1 chars are now
88 * Numerous minor stability fixes.
89 Changes since 5.11: * Big speed improvement on OSX for heavy XCopyArea
90 users (`xmatrix', `moire2', `phosphor', etc.)
91 * Plugged a bad OSX-only Pixmap leak.
92 * Kludged around the OSX pty bug that caused text to
93 be truncated in phosphor, starwars, apple2, etc.
94 * New molecule in `molecule'.
95 * `glhanoi' now supports an arbitrary number of poles.
96 * Turned on "New Login" button by default.
97 * Added support for XInput-style alternate input devices.
98 Changes since 5.10: * New versions of `photopile', `strange'.
99 * Worked around MacOS 10.6 garbage collector bug that
100 caused the screen saver process to become enormous.
101 * Fixed flicker in `pipes', `cubestorm', and `noof'.
102 * Fixed EXIF rotation on MacOS 10.6.
103 * Fixed desktop-grabbing when screen locked on MacOS.
104 * Minor fixes to `circuit', `polyhedra', `tangram',
105 `gears', `pinion', `substrate', `xanalogtv'.
106 * Fixed some leaks in `xanalogtv' and `apple2'.
107 * Better seeding of the RNG.
108 Changes since 5.09: * Fixed some crashes and color problems on MacOS 10.6.
109 * Retired `hypercube' and `hyperball', which are
110 redundant with `polytopes'.
111 Changes since 5.08: * Ported to MacOS 10.6, including various 64-bit fixes.
112 * New hack, `rubikblocks'.
113 * Fixed another potential RANDR crash.
114 * Use correct proxy server on MacOS.
115 * `molecule' now correctly displays PDB 3.2 files.
116 * Updates to `mirrorblob', `glhanoi', and `sonar'.
117 * Rewritten version of `klein' hack.
118 * New hack, `surfaces', incorporating objects from old
119 `klein' hack, plus new ones.
120 * Merged `juggle' and `juggler3d' hacks.
121 * Fixed compilation under gcc 4.4.0 (strict aliasing).
122 * Fixed intermittent failure in `xscreensaver-command'.
123 Changes since 5.07: * New hack, `photopile'.
124 * Rewrote `sonar' and `jigsaw' as OpenGL programs.
125 * Minor tweaks to `maze', `m6502', `hypnowheel', and
127 * Savers that load images now obey EXIF rotation tags.
128 * Arrgh, more RANDR noise! Fixes this time for rotated
129 screens, and for systems where RANDR lies and says the
131 * When the password dialog has timed out or been
132 cancelled, don't pop it right back up a second time.
133 * Password timeouts/cancels don't count as
135 * Retired some of the older, less interesting savers:
136 say goodbye to `bubbles', `critical', `flag', `forest',
137 `glforestfire', `lmorph', `laser', `lightning', `lisa',
138 `lissie', `rotor', `sphere', `spiral', `t3d', `vines',
139 `whirlygig', and `worm'.
140 * Merged `munch' and `mismunch'.
141 * Updated `webcollage' to use twitpic.com as well.
142 Changes since 5.06: * Xinerama/RANDR tweaks for old-style multi-screen.
143 * Added bumpy skin and cel shading to `skytentacles'.
144 * `flipflop' can load images onto the tiles.
145 * Fixed the bouncing ball in `stairs'.
146 * Added the missing Utah Teapotahedron to `polyhedra'.
147 * `blitspin' works with color images on MacOS now.
148 * Added transparency to `stonerview'.
149 * Improved layout of the preferences dialogs: they
150 should all now be usable even on ridiculously tiny
152 * MacOS preferences text fields now prevent you from
153 entering numbers that are out of range.
154 * Added "Reset to Defaults" button on X11.
155 * Added relevant Wikipedia links to many of the screen
157 * All hacks support the `-fps' option, not just GL ones.
158 * The `-fps' option now shows CPU load.
159 Changes since 5.05: * Xinerama/RANDR fixes: this time for sure. It should
160 now work to add/remove monitors or resize screens at
162 * New hack, `skytentacles'.
163 * New version of `gleidescope'.
164 * Added the `-log' option to the xscreensaver daemon,
165 since a truly shocking number of Linux users seem to
166 have no idea how to redirect output to a file.
167 * Added `-duration' arg to most image-loading hacks,
168 so that they pick a new image every few minutes.
169 * Added an ATM crash to BSOD.
170 Changes since 5.04: * New hacks, `cubicgrid', `hypnowheel', and
171 `lcdscrub' (which isn't really a screen saver).
172 * Updates to `m6502' and `gears'.
173 * Fixed double-buffering problems in `cubestorm' and
175 * Better handling of horizontal scroll wheels.
176 * Attempt to work around latest Xinerama braindamage:
177 if the server reports overlapping screens, use the
178 largest non-overlapping rectangles available.
179 * Don't warning about receipt of bogus ClientMessages,
180 since Gnome's just never going to stop sending those.
181 * Worked around MacOS 10.5 perl bug that caused the
182 text-displaying hacks to fail on some systems.
183 * Hopefully fixed font-related System Preferences crashes
185 * The recent PAM changes broke the "Caps Lock" warning
186 in the password dialog, the failed login warnings, and
187 syslogging. Fixed all that.
188 Changes since 5.03: * Fixed a possible crash in the unlock dialog (more
189 fallout from the recent PAM changes...)
190 * New hacks, `moebiusgears', `abstractile', and
192 * Rewrote `gears' to use better (involute) gear models,
193 and to be more random.
194 * Minor updates to `cwaves', `voronoi', `deco',
195 `glcells', `rd-bomb', `fireworkx' and `webcollage'.
196 * `pong' can now display the current time as the score.
197 * `xmatrix -mode pipe' works better.
198 * Minor tweaks for compilation on MacOS 10.5.0.
199 Changes since 5.02: * New hacks, `cwaves', `glcells', `m6502', and `voronoi'.
200 * Minor fixes to `bsod'.
201 * Fixed possible crash with PAM USB-dongle auth.
202 * Updated `webcollage' to track recent Google Images
204 Changes since 5.01: * Reworked PAM code to support fingerprint readers, etc.
205 * Ported 'webcollage' to MacOS.
206 * Added MacOS 10.2 and 10.3 kernel panics to `bsod'.
207 * Fixed a Xinerama crash when changing the screen count.
208 * New blobbier `mirrorblob'.
209 * Minor updates to `lisa', `bsod', `ifs', `hypertorus',
210 `polytopes', `circuit', `endgame', `crackberg',
211 `flipflop', `flipscreen3d', `fliptext', and `carousel'.
212 * Enabled multi-threaded OpenGL on MacOS.
213 Changes since 5.00: * Backed out recent locale-related changes, since they
214 broke far more things than they fixed.
215 * Fail gracefully with ridiculously small window sizes.
216 * `xflame' and `flag' ignore bitmap option on MacOS.
217 * `speedmine' prefs work on MacOS.
218 * Better explosions in `boxed'.
219 * More dynamic motion in `sproingies'.
220 * More options in `flipflop'.
221 * Minor updates to `topblock'.
222 * Various other minor fixes.
223 Changes since 4.24: * Ported to MacOS X! (10.4.0 or newer)
224 * API change: instead of providing a single screenhack()
225 function that does not return, screen savers using the
226 screenhack.h framework must now provide "init" and
227 "draw one frame" functions instead. All bundled savers
228 have been updated; third-party patches will need work.
229 * All image-loading happens asynchronously.
230 * xscreensaver-getimage-file caches the contents of the
231 image directory for a few hours, so consecutive runs
232 won't have to re-list the whole directory tree.
233 * New hacks, `topblock' and `glschool'.
234 * Removed `xteevee' (superceded by `xanalogtv').
235 * Added variable-sized puzzle pieces to `jigsaw'.
236 * Changes to the defaults and command-line options of
237 many hacks to make the .xml files more consistent.
238 * Reap zombies in `glslideshow' and `carousel'.
239 * `sonar' works without setuid on MacOS (dgram icmp).
240 * `xmatrix -mode pipe' displays the text of a subprocess.
241 * `endgame' has higher resolution chess-piece models.
242 * `webcollage' takes a -directory option to get images
243 from a local directory.
244 * The RPM spec file no longer auto-restarts xscreensaver
245 when a new version is installed. Restart it manually.
246 Changes since 4.23: * New versions of `cube21', `glsnake', `celtic'.
247 * Backed out a DPMS-related patch that cause desktop
248 flickering with some X servers.
249 * Fixed startup crash in getgroups() when running setuid.
250 * Default to not displaying stderr on the saver window.
251 * Fixed bad free() in "Documentation" button.
252 * Don't try to run hacks that aren't installed.
253 * Minor fixes to various XML config files and man pages.
254 Changes since 4.22: * New hacks, `glhanoi', `cube21', `timetunnel',
255 `juggler3d', and `celtic'.
256 * New versions of `tangram', `webcollage', `hypertorus',
257 `polytopes', and `ripples'.
258 * `sonar' is now quiet about unresolvable hosts.
259 * Minor corrections to BASIC code in `apple2'.
260 * xscreensaver-demo now provides an RPM clue when none
261 of the hacks seem to be installed.
262 * Don't install `ant' by default, since there is some
263 Java tool of that name, which was causing confusion.
264 And also it's boring.
265 * Made screen grabbing work again on MacOS 10.4.2.
266 * No longer prints bogus warnings about ClientMessages
267 intended for the window manager.
268 * Ignore unprintable characters in passwd entry field.
269 * Fixed yet another cross-host-display image-loading
271 * `xscreensaver-command -watch' and `-time' now work
273 Changes since 4.21: * Fixed a bug in the new mouse-motion code that caused
274 the screen to never blank on multi-head non-Xinerama
276 * New hacks, `interaggregate', `antmaze', `tangram',
278 * Minor tweaks to `fiberlamp', `ifs', `slidescreen',
279 `zoom', `sonar', `fireworkx', `whirlwindwarp',
280 `bubble3d', and `rd-bomb'.
281 * Added motion blur to `blinkbox'.
282 * `bsod' now includes Longhorn's "RSOD", and OS/2.
283 * Fixed `-wireframe' usage in most hacks and man pages.
284 Changes since 4.20: * New hack: `fliptext'.
285 * Changed default configure installation directories:
286 /usr/bin/ for xscreensaver, etc.;
287 /usr/libexec/xscreensaver/ for hacks;
288 /usr/share/xscreensaver/config/ for xml files.
289 * All the text-manipulating screen savers can have their
290 text source configured via `xscreensaver-demo' now.
291 * xscreensaver.spec now builds three RPMs:
292 base (no hacks); extras (2d hacks); and gl-extras.
293 * Added `-program' and `-front' option to `gltext'.
294 * Added `-shells' to `molecule'.
295 * Fixed text-alpha glitch in `carousel'.
296 * New `pacman': the ghosts can be killed now.
297 * Fixed a bug in screen-grabbing GL hacks where images
298 would be tiled instead of scaled on machines that
299 can't do large textures.
300 * `webcollage' can hit Flickr now.
301 * New (rewritten) implementation of `ifs'.
302 * The unlock dialog can be made to have a "New Login"
303 button that will run `gdmflexiserver'. Experimental!
304 * Fixed non-ASCII display bug in `starwars'.
305 * Configure finds a default for imageDirectory.
306 * "xscreensaver-command -lock" now works even if
307 in "screensaver disabled" mode.
308 * If a bad password is typed while CapsLock is on, the
309 unlock dialog says "CapsLock?" instead of "Sorry".
310 * Mouse motion only counts as activity if the mouse moved
311 more than 10 pixels (so the screen won't unblank every
312 time you bump your desk.)
313 * New mode option "random-same": if you have multiple
314 monitors, this will run the *same* randomly chosen
315 hack on each screen, instead of different ones on each.
316 Changes since 4.19: * New hacks, `fiberlamp', `boing', `boxfit', and
318 * Rewrote `glslideshow' again: should be faster now.
319 * Sped up loading of images in GL programs.
320 * `starwars' uses texture-mapped fonts now.
321 * New `bsod' modes: tru64, hppa, and nvidia.
322 * Updates to `webcollage', `juggle', `pinion',
323 `fireworkx', `sonar', `extrusion', `substrate', and
325 Changes since 4.18: * New hacks, `substrate', `intermomentary', `fireworkx',
327 * New version of `flow'.
328 * Made /proc/interrupts work again on Linux 2.6.
329 * Made `analogtv' not hog the CPU.
330 * Made analogtv-based hacks work properly on PPC/ARM.
331 * Fixed a bad memory leak in `piecewise'.
332 * Minor updates to `sonar', `molecule', `glmatrix',
333 `galaxy', and `webcollage'.
334 * Removed support for GTK 1.x (everyone uses 2.x now.)
335 Changes since 4.17: * Oops, pay no attention to the man behind the curtain.
336 Changes since 4.16: * New hacks, `anemotaxis' and `memscroller'.
337 * Fixed a bad bug that caused `vidwhacker' to never die.
338 * Fixed normals and lighting in `polyhedra'.
339 * Don't reuse the window when changing hacks (to work
340 around bugs in some GL implementations.)
341 * Made `xscreensaver-getimage-file' skip thumbnail-sized
343 * Fixed endian problem in `barcode' on non-x86.
344 * Updates to `webcollage', `apple2', `fuzzyflakes',
345 `atunnel', and `pacman'.
346 * Timing tweaks to `bubble3d', `bouncingcow', `engine',
347 `gltext', `lavalite', `molecule', `spotlight',
348 `sballs', `boxed', `blinkbox', and `circuit'.
349 * Configure updates for Fedora core 2 / xorg 6.7.0.
350 * Compile without warnings under gcc 3.3.3.
351 * I give up: don't blank or lock the screen if we can't
352 get a keyboard grab. In that case, both choices are
354 Changes since 4.15: * New hacks, `polyhedra', `fuzzyflakes', `antinspect',
356 * Minor updates to `webcollage', `bsod', `endgame',
357 `antspotlight', `xmatrix', and `glmatrix'.
358 * Added support for the RANDR (Resize and Rotate)
359 extension to detect when the size of the desktop has
360 been changed while xscreensaver is already running.
361 * Possibly-futile attempt to work around "rdesktop"
363 * Made `xscreensaver-getimage -file' still work even if
364 imageDirectory is unset.
365 * Convert Latin1 to ASCII in `starwars' and `phosphor'
366 (since the GLUT font only has ASCII glyphs.)
367 * Fixed randomization in `noof'.
368 * Added "GetViewPortIsFullOfLies" preference to work
369 around longstanding XFree86 bug #421.
370 * Made `sonar' subnet pinging work properly on bigendian
371 machines (e.g., PPC.)
372 Changes since 4.14: * New hacks, `wormhole', `mismunch', `noof', and
374 * `phosphor' and `apple2' include vt100 emulators now:
375 this means you can do "phosphor -program top", or
376 can use either program as an xterm replacement:
377 "apple2 -text -fast -program 'xemacs -nw'".
378 * `analogtv' (and related) fill the screen better.
379 * The '-gradient' option works in `atlantis' now.
380 * Minor updates to `blinkbox', `queens', `endgame',
381 `glmatrix', `mirrorblob', `blocktube', and `molecule'.
382 * Integrated SuSE's "external passwd helper" support.
383 * Marginally better /tmp handling in various programs.
384 * Updated config defaults for xplanet 1.0.3.
386 Changes since 4.13: * New hacks, `fontglide', `apple2', `xanalogtv', `pong',
387 `gleidescope', `mirrorblob', and `blinkbox'.
388 * New version of `glsnake' (with many more models.)
389 * Another Windows crash in `bsod'; also HVX/GCOS6/TPS6.
390 * New version of `endgame'.
391 * Screen grabbing works on MacOS X.
392 * Various minor fixes.
393 Changes since 4.12: * On Xinerama systems, xscreensaver now runs one hack on
394 each monitor (just like in "real" multi-head mode)
395 instead of running one hack stretching across all the
396 screens. Note that for this to work with any 3rd party
397 screensavers, they must update their "vroot.h" file.
398 * `webcollage' and `vidwhacker' display images using
399 `xscreensaver-getimage' now.
400 * Added `ljlatest' script for use with `starwars' and
402 Changes since 4.11: * New GL hacks, `flipflop', `antspotlight', and
404 * Added VMS to `bsod'.
405 * Compile without warnings in "gcc -pedantic".
406 * Updates to `webcollage' and `queens'.
407 * Fixed a bug that could cause PAM to hang.
408 Changes since 4.10: * New hacks, `hypertorus', `cubestorm', `glknots',
409 `blocktube', and `glmatrix'.
410 * Updates to `cloudlife', `engine', `xmatrix', and
412 * Rewrote `glslideshow': it should work on somewhat
413 wimpier video cards now.
414 * Various portability tweaks.
415 Changes since 4.09: * New hacks, `cloudlife' and `klein'.
416 * Added Apple ][+, HPUX, and OS/390 sessions to BSOD.
417 * Added some Matrix Reloaded text to `xmatrix'.
418 * Updates to `webcollage', `eruption', `jigglypuff',
419 `metaballs', and `endgame'.
420 * Completely ignore the `memoryLimit' setting now,
421 since it was still causing people GL grief.
422 * Various minor fixes.
423 Changes since 4.08: * New hacks, `flyingtoasters', `bouncingcow',
424 `jigglypuff', and `glslideshow'.
425 * More models in `engine'.
426 * Rewrote `xscreensaver-getimage' to remove reliance on
427 external image loaders (xv, chbg, xloadimage, etc.)
428 and to reduce flicker when loading files.
429 * Made `gflux' and `flipscreen3d' be mouse-spinnable.
430 Changes since 4.07: * New hacks, `atunnels' and `piecewise'.
431 * Physics improvement in `fluidballs'.
432 * Various fixes for XDarwin systems (X11 on MacOS X.)
433 * Added -clock option to `barcode'.
434 * Minor fixes to `endgame', `flurry', `flipscreen3d',
436 Changes since 4.06: * New hacks, `flurry', `metaballs', `eruption',
437 `popsquares', and `barcode'.
438 * Minor updates to `maze' for high density mazes.
439 * Added double buffering to `fluidballs' and `whirlygig'.
440 * Bug fixes for running xscreensaver to a remote XFree86
441 display (which nobody would ever do...)
442 * Updated `webcollage' (faster Alta Vista searching.)
443 * Updated `glplanet' so the sun sets in the west.
444 * Updated `sproingies' with smooth, unsegmented surfaces.
445 * Fixed Perl version-sensitivity in
446 `xscreensaver-getimage-file'.
447 * Fixed GTK2 scrolling bug in `xscreensaver-demo'.
448 Changes since 4.05: * New hack, `glblur' (disabled by default, since it
449 requires fast OpenGL texture support.)
450 * New hack, `halftone'.
451 * Updates to `endgame', `queens', `bumps', `glplanet',
452 `engine', and `circuit'.
453 * New version of `menger' that uses far fewer polygons.
454 * Fixed minor bug in `critical' that could cause some
455 bogus X servers to crash.
456 * Better labels in `molecule': the labels now appear to
457 be attached to the atoms, instead of floating in front
459 * Fixed bug that could rarely cause GL hacks to fail to
460 double-buffer (causing intermittent flickering.)
461 * Fixed a relative-URL-parsing bug in `webcollage'.
462 * Fixed a bug that (sometimes) caused the window manager
463 close box to kill `xscreensaver-demo' with a crash
464 instead of a graceful exit.
465 * Updated xscreensaver.pam to the Red Hat 7.3 way.
466 * More Gnome2-related configure crap.
467 * Updated to latest `config.guess' and `config.sub'.
468 * Fixed occasional core dump in `distort'.
469 * Added a Linux fsck failure and kernel panic to `bsod'.
470 * Added MacOS X kernel panic to `bsod'.
471 * Fixed a bug in `bsod' (all bsod bugs are ironic.)
472 * Fixed a bug that caused `xscreensaver-gl-helper' to
473 print a nonsense visual ID with some versions of
474 `printf': this could cause GL programs to display
475 incorrectly (e.g., flickery.)
476 Changes since 4.04: * More `configure' tweaks to try and get things working
477 on systems that both Gtk 1.x and 2.x installed.
478 * New hack, `endgame'.
479 * Minor updates to `gltext'.
480 Changes since 4.03: * Support for GTK 2.x / GNOME 2.x.
481 * The `configure' script will now use `pkg-config' if
482 you have it, in preference to `gtk-config', etc.
483 * New hacks, `lavalite', `queens', and `anemone'.
484 * Minor updates to `spheremonics', `gltext', `xmatrix'.
485 * You can use the mouse to manually spin most of the GL
486 hacks now (when they are displaying in a window.)
487 * Fixed a bug in `webcollage' (due to recent Alta Vista
488 url changes) that was causing it to try and load
489 incorrect image URLs.
490 * Made `xscreensaver-getimage' use gdk_pixbuf if it is
491 available: this means that those hacks that load images
492 will no longer rely on "xv", "xloadimage", etc. This
493 will close a race condition that could sometimes cause
494 your desktop background to be changed; and also makes
495 it possible for those programs to operate on image
496 files when running in windowed mode.
497 * `webcollage' can now be used in conjunction with
498 `driftnet' to display images snooped from your local
499 ethernet instead of obtained from search engines.
500 * Added man pages for all the hacks that didn't have
502 Changes since 4.02: * New hack, `spheremonics'.
503 * Minor updates to `webcollage', `cage', `moebius',
504 `morph3d', `boxed', `circuit', and `helix'.
505 * `pulsar' and `extrusion' can now load texture JPEGs.
506 * `rubik' now does non-square cubes.
507 * `fluidballs' now does various sizes of balls.
508 * `menger' and `sierpinski3d' now also show polygon
510 * `molecule' displays real subscripts in the formulae.
511 * GTK internationalization/localization support.
512 * Better detection of the various versions of libxml.
513 * Upgraded to autoconf 2.53 (from 2.13.)
514 Changes since 4.01: * Plugged a few minor leaks in `xscreensaver' and
516 * New hacks, `cubenetic' and `fluidballs'.
518 * Fixed sphere projection error in `glplanet'; installed
519 a better image of earth.
520 * Added Win2K and MacOS 1 crashes to `bsod'.
521 * Put back previous (better) version of `forest' that
522 was accidentially downgraded in the last release.
523 * New version of `bumps'.
524 * Made FPS computation in GL hacks more efficient: it
525 will influence the results less, thus resulting in
526 higher (but more accurate) reported frame rates.
527 Changes since 4.00: * New hacks: `twang', `glsnake', `boxed', `sballs',
529 * New hacks `apollonian', `euler2d', `juggle',
530 `polyominoes' and `thornbird', from xlockmore.
531 * Merged recent xlockmore changes into `ant', `braid',
532 `demon', `discrete', `drift', `fadeplot', `forest',
533 `grav', `hopalong', `ifs', `laser', `lightning',
534 `lisa', `lissie', `loop', `mountain', `penrose',
535 `rotor', `sierpinski', `slip', `sphere', `spiral',
536 `strange', and `vines'.
537 * Fixed the `gltext' bug that sometimes caused
538 horizontal lines to vanish again. This time for sure.
539 * Sped up `webcollage' by adding a C helper program to
540 replace the PPM pipeline. It also pastes images
541 semi-transparently now.
542 * Added support for the gdk_pixbuf library: if this lib
543 is available, then `blitspin', `xflame', and `flag'
544 can load GIF, JPEG, and PNG images in addition to XPM
546 * Fixed a rare race condition where the desktop-grabbing
547 hacks could sometimes leave the screen wedged, if the
548 user moved the mouse exactly when they were grabbing
549 the screen image (it would un-wedge the next time the
550 saver timed out or was activated.)
551 * Fixed incorrect colors in the screen-grabbing GL hacks
552 (`gflux' and `flipscreen3d'.)
553 * Made SIGHUP restart the daemon process (though using
554 `xscreensaver-command -restart' is still the preferred
556 * Tweaks to `xspirograph'.
557 * Minor configure and portability tweaks.
558 Changes since 3.34: * Redesigned `xscreensaver-demo' GUI: it now includes
559 small-preview and per-hack configuration dialogs.
560 * Added three new modes of operation: `One Screen Saver',
561 `Blank Screen', and `Don't Blank' (in addition to the
562 historical `Random Screen Saver').
563 * Configure now defaults to installing the hacks in
564 <prefix>/lib/xscreensaver/ instead of <prefix>/bin/.
565 (Most distros already did it this way.)
566 * New GL hacks, `menger', `engine', `flipscreen3d'.
567 * Made `sierpinski3d' be more colorful.
568 * New versions of `xmatrix' and `nerverot'.
569 * Fixed a bug in `starwars' that made the font be drawn
570 with thin lines in -root mode.
571 * Fixed a bad colormap bug in `crystal' that could make
572 *subsequent* hacks malfunction!
573 * Made `gflux' able to grab screen images (`-mode grab').
574 * Updated `webcollage' for recent search engine changes.
575 * Removed most command-line options to `xscreensaver':
576 just edit the ~/.xscreensaver file instead.
577 * Improved behavior on multi-screen and Xinerama systems:
578 the mouse now stays on the screen where the user left
579 it, and the password and splash dialogs always appear
580 on the screen that has the mouse.
581 * Made the splash dialog use more Gtk-like colors;
582 made it have only two buttons, "Settings" and "Help".
583 * Made `sonar' understand `.ssh/known_hosts2' format
584 files, and be better about stripping out illegal
586 Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
587 some versions of the GL libraries (appear to) allocate
588 hundreds of megs for every GL program, so `memoryLimit'
589 was causing GL programs to malfunction or crash on
591 * Improved fading on TrueColor XFree86 4.1.x systems.
592 * New GL hack, `circuit'.
593 * Added `fuzz' mode to `decayscreen'.
594 * New version of `whirlygig'.
595 * Added links to `xplanet' and `sphereEversion'.
596 * Fixed rare race condition that could make `sonar' hang.
597 * Fixed potential crash in `speedmine'.
598 * Made `xscreensaver-demo' not crash when imageDirectory
599 was set to a non-existent directory.
600 * Made `xscreensaver-getimage-video' invoke XawTV's
601 `streamer' program better.
602 * Made `phosphor' and `starwars' deal with CR, LF,
603 or CRLF line endings.
604 * Changes for Cygwin compilation environments.
605 * Made `sonar' compile on systems that can't ping.
606 * Configure changes for HPUX 10.20.
607 * Made PAM code work on Red Had 4.2 systems.
608 * Made `xscreensaver-command -deactivate' work when the
609 saver is not active: what that does is reset the idle
610 timer, as if keyboard input had been detected. This
611 was added for the benefit of people writing DVD-playing
612 software: they can now prevent the screensaver from
613 kicking in by sending a -deactivate message once a
614 minute while the movie is playing and not paused.
615 * Various minor portability tweaks.
616 Changes since 3.32: * New hacks, `speedmine' and `whirlygig'.
617 * Sped up `pyro', made the explosions look a bit better.
618 * Added better stars to `glplanet' and `starwars'.
619 * Many internal changes to `webcollage'.
620 * Some new options to `attraction'.
621 * Minor fix to `noseguy' to avoid un-erased pixels.
622 * Rewrote the screen-eraser effects so that they complete
623 in the same amount of time regardless of how slow
624 your X server is (some of them were glacial on servers
626 * Fixed a potential free memory reference that could
627 sometimes cause a crash at startup.
628 * Possibly fixed a problem that could cause the daemon
629 to crash with an X error. I was never able to
630 reproduce this problem, but I think I might have
631 figured out what caused it.
632 * Worked around a problem that caused PAM authentication
633 to fail on some Red Hat 7.x systems.
634 * Added a `memoryLimit' parameter that controls the
635 amount of memory a graphics hack may allocate: if they
636 try to allocate more than this, malloc() will fail
637 (and they will exit or (safely) crash, rather than
638 hogging memory.) Default is 50M.
639 * Made `gnome-help-browser' be the default way to display
640 man pages in `xscreensaver-demo', if running on a
642 Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
643 now operate on randomly chosen image files from disk,
644 or on frames captured from the system's video input,
645 instead of (or in addition to) manipulating images of
647 * Rewrote `vidwhacker' to use the new image-grabbing
649 * Made fading work on TrueColor XFree86 4.x systems.
650 * Fixed a subtle rendering bug in `atlantis' (the fish
652 * Made `atlantis' have a texture simulating light
653 reflections from the surface of the ocean.
654 * Fixed up label placement in `molecule'.
655 * Better color bars in `xteevee'.
656 * Made `install-strip' not try to strip scripts.
657 Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
658 the documentation to reflect the fact that all your
659 DPMS settings are now belong to xscreensaver.
660 * Fixed the `xscreensaver.spec' file so that `--force'
662 * New versions of `rotzoomer' and `nerverot'.
663 * Fixed an OSF/1 compilation problem in `molecule'.
664 Changes since 3.29: * New hacks, `molecule', `dangerball', and `rotzoomer'.
665 * New version of `gflux'.
666 * Made `gltext' able to display the current time.
667 * Fixed a floating-point-precision problem in `gltext'
668 that sometimes caused horizontal lines to vanish.
669 * Removed the `-window-id' option from the hacks:
670 it never worked right, and was unnecessary.
671 * Made the `starwars' hack use thicker lines, antialias
672 the text, and fade out at the far edge instead of just
674 * Fixed an SHM segment leak in `moire'.
675 Changes since 3.28: * Better rendering of the new logo.
676 * New hack, `gltext'.
677 * Added `-planetary' option to `gears', to draw a
678 different kind of gear system.
679 * Made motion and rotation be smoother in `gears',
680 `glplanet', `moebius', `rubik', and `sierpinski3d'.
681 * Improved coloration in `sierpinski3d'.
682 * Made the GL hacks react to window size changes.
683 * Made most of the GL hacks take a -fps option (like
684 `pulsar' did), so you can use them to benchmark your
686 * Fixed the previous fix to `sonar'.
687 * Minor fix to `nerverot'.
688 Made sonar able to ping hosts on DEC OSF1.
689 * Eliminated a bogus "didn't get enough colors" warning
690 in some of the hacks.
691 Changes since 3.27: * New logo for xscreensaver!
692 * New hacks, `starwars' and `stonerview'.
693 * Made the motion of the bouncing ball in `stairs' be a
695 * Made newly-added screenhacks be added to .xscreensaver
696 automatically: if there are hacks in the app-defaults
697 file that are not also in ~/.xscreensaver, they will
698 be added to the end of the list.
699 * Redid the `Screensaver Options' part of the control
700 panel; xscreensaver now lets you configure your DPMS
702 * Fixed some Makefile problems with non-GL builds.
703 * Fixed detection of MesaGL for version 3.3.
704 * Better workaround to Red Hat 7.0's broken gcc.
705 * Added Sparc Solaris kernel panic to `bsod'.
706 Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
707 * Fixed a free-memory-reference bug in `sonar'.
708 * Better error handling when there are no suitable GL
710 * Added diagnostic dialog when xscreensaver-demo is
711 unable to launch xscreensaver (e.g., when running as
713 * Fixed a bug that caused screenhack argument changes
714 to be ignored when xscreensaver-demo was running as
715 root (if "root" and "nobody" have different home
717 * Made the programs default to ":0" if $DISPLAY is unset.
718 * Made the `-verbose' output include information about
719 which server extensions were supported at compile time.
720 * Worked around Red Hat 7.0's broken gcc 2.96.
721 * Updated default delays on the GL hacks to look better
722 on machines with super-fast 3D hardware.
723 * Install `screensaver-properties-capplet' to work around
724 the usual egregious GNOME lossage.
725 Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
726 xscreensaver-demo (Gtk version only.)
727 * New hacks `hyperball', `xrayswarm', and `gflux'.
728 * New versions of `nerverot', `galaxy', and `hypercube'.
729 * Small fixes to `phosphor', `shadebobs', `xflame',
731 * Added external helper program `xscreensaver-gl-helper'
732 to figure out which X visual to use for OpenGL
734 * Configure updates for XFree86 4.0, and for BSD.
735 * Made it be more tolerant of bogus /etc/group files.
736 * When installing the PAM config file, first try to just
737 copy an existing "xdm" or "login" config file, so that
738 xscreensaver does authentication in the same way as the
740 Changes since 3.24: * New hack, `nerverot'.
741 * Added BSD kernel panic to `bsod'.
742 * New version of `shadebobs'.
743 * New version of `petri'.
744 * Updated `webcollage' to handle recent Altavista URL
745 format changes; made it search the AP photo gallery.
746 * Revamped command-line options of `sonar' and made it
747 properly handle subnets.
748 * The `bubbles' hack can now trickle up or down the
750 * The `xsublim' hack can now read its text from programs.
751 * Support for GLE version 3 in `extrusion'.
752 * Fixed compilation problems in `maze'.
753 * Fixed a rare crash in `flow'.
754 * Fixes for minor installation problems.
755 Changes since 3.23: * Added `-ignorant' option to `maze' hack.
756 * Updates to `critical', `bsod', `xflame', and `flow'.
757 * Added support for Kerberos 5 (via its Kerberos 4
758 compatibility layer.)
759 * Fixed a bad leak in `xteevee'.
760 * Updated `webcollage' to handle recent Altavista URL
762 * Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
763 since they were confusing people: all changes are now
765 * Made xscreensaver-demo install itself into the Gnome
767 Changes since 3.22: * Fixed some misplaced text fields in the Motif version
768 of xscreensaver-demo; fixed a crash in the Gtk version
769 that would happen if the programs list was empty.
770 * Fixed a recently-introduced bug in `pulsar'.
771 * Made `sierpinski3d' use solid tetrahedrons instead of
773 * Added `-trace' option to `xmatrix'.
774 * Added new hacks `xteevee' and `xspirograph'.
775 Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
776 * Rewrote the Motif version of xscreensaver-demo to
777 match the new Gtk version.
778 * The Athena toolkit is no longer supported.
779 Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
780 * Fixed a few visual selection bugs. I think the proper
781 GL visual should be used with nVidia systems now.
782 * Made the Makefiles obey $install_prefix.
783 * Made the `xscreensaver.spec' file able to generate both
784 GL and non-GL packages simultaneously.
785 Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
786 * Made `xscreensaver-command -exit' be silent when no
787 screen saver was running (instead of complaining.)
788 * Made `webcollage' and `vidwhacker' use `xloadimage'
789 when available (in addition to `xli' and `xv'.)
790 * Improved memory usage in `petri' and gave it a hard
791 cap on how much memory it can allocate.
792 * Added `-watch' option to `xscreensaver-command'.
793 * Made `xscreensaver-demo' come up with the
794 most-recently-run hack selected by default.
795 * Rewrote the Gtk version of `xscreensaver-demo'.
796 It's a lot easier to use now.
797 * Extended the format of the programs list in the
798 .xscreensaver file, for the benefit of the new
799 capabilities of `xscreensaver-demo'.
800 NOTE: you might want to delete your ~/.xscreensaver
801 file and allow it to be re-created! The old one
802 should still work, but xscreensaver-demo won't be as
804 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
805 * New hack, `extrusion'.
806 * Some of the web sites that `webcollage' was using as
807 its sources changed formats; tweaked it to understand
809 * Added typeahead in the password dialog: if the screen
810 is locked, and you unlock it by typing a character,
811 that key will be automatically inserted in the
812 password dialog (unless it is Return, Enter, Space,
813 or a non-printing key like Shift.)
814 * Made `xmatrix' take a `-small' option, since some
815 folks with tiny screens prefer a smaller font.
816 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
817 * Added `ccurve', `blaster', and `bumps' hacks.
818 * Replaced `forest' hack with a rewritten version.
819 * Worked around a Xinerama server bug.
820 * Fixed a bug I introduced in 3.10 that caused some
821 hacks to print out superfluous warnings about not
822 having gotten enough colors.
823 * Made `sproingies' obey the `-delay' option.
824 * Fixed a portability bug in `shadebobs'.
825 * Made `webcollage' and `vidwhacker' use `xli' in
826 preference to `xv', if it is available.
827 * Added a new source of images to `webcollage'.
828 * If running under KDE, xscreensaver will add itself to
829 KDE's list of screensavers (via xscreensaver.kss.)
830 * Improved detection of GL libraries.
831 * Made the password dialog include the date and time.
832 Changes since 3.16: * New version of `webcollage' -- deals better with
833 corrupted images, and can use an http proxy.
834 * New hack, `xsublim' (run it in the background,
835 rather than adding it to the programs list.)
836 * The xscreensaver daemon was leaking a file descriptor
837 each time you edited your .xscreensaver file. Fixed.
838 Changes since 3.15: * New version of `shadebobs'.
839 * Improved image selection in `webcollage', and sped it
841 * Made configure find the right version of perl.
842 * Rewrote the CGI part of `webcollage'.
843 * `make clean' was deleting some things it shouldn't.
844 * Fixed a typo in the default programs list.
845 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
846 * Added a `-stdout' arg to `vidwhacker' so that it can
847 be used in a pipeline.
848 * Made `petri' use less memory.
849 Changes since 3.13: * Various improvements to the Gtk port.
850 * Turned off PAM by default on Solaris, since PAM seems
851 generally to be misconfigured out-of-the-box.
852 * Made the `--without-gtk' configure option work.
853 * Made configure check the Gtk version number, since it
855 * Fixed a bug in the code that attempted to prevent
856 changes of screen resolution while the screen is
858 * Fixed a race condition in `xscreensaver-demo' that
859 could cause an X error at startup.
860 * Added `-transparent' option to `deluxe'.
861 * Added `petri' hack.
862 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
863 * Made it possible to build Motif, Gtk, and Athena
864 versions of `xscreensaver-demo' in the same directory
865 without reconfiguring.
866 * Made `xscreensaver-demo' chase symlinks before writing
867 the .xscreensaver file, so that if .xscreensaver is
868 itself a symlink, the underlying file will be replaced
870 * Some Makefile and configure tweaks for Solaris and
872 * Made it possible to set the fire color in `xflame'.
873 * Made transparency work in TrueColor (for `goop' and
875 * Fixed a multi-head bug introduced by the virtual
877 Changes since 3.11: * Made it so that you can't scroll the screen while the
878 lock dialog is up (with XFree86 virtual viewports.)
879 * Fixed a bug in `flag' that caused bob's chin to get cut
880 off after a few iterations.
881 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
882 less like a computer screen and more like the
883 typewritten paper it's supposed to be.
884 * New version of `pulsar'.
885 * Fixed Solaris compilation problem in `phosphor'.
886 * Made xscreensaver notice XFree86's virtual root window
887 hack, so that if the X server's root window is larger
888 than the monitor's displayable resolution, the screen
889 saver will limit itself to the area that actually
890 appears on the screen.
891 * Made the xscreensaver daemon do a better job of
892 picking the visual class that should be used for GL
893 programs. Less user intervention should be needed
894 now: you can use the logical visual name `GL' instead
895 of having to figure out by hand which one to use.
896 * Oops, the visual was defaulting to "best" instead of
897 "default", because the .xscreensaver file was not being
898 loaded quite early enough.
899 * Made configure figure out how to build icmp ping
900 support into the `sonar' hack automatically.
901 * Made warnings about not being able to read shadow
902 passwords not be printed if compiled with PAM support.
903 * Improved PAM startup diagnostics.
904 * Worked around the Solaris PAM bug that was causing
905 crashes there, so now PAM is turned on by default.
906 * Made configure detect the number of arguments that
907 pam_strerror() takes, since on Linux, this apparently
908 changed between 2.0 and 2.2, sigh.
909 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
910 as well as "keyboard".
911 * Made xscreensaver notice when there has been a sudden
912 large jump in wall-clock time, and if so, lock right
913 away, instead of waiting for "lockTimeout" to expire
914 first. (Laptops need this for safer recovery from
916 * Added `-throttle' option to `xscreensaver-command'.
917 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
918 * Fixed a bug in the color allocator that sometimes
919 caused `starfish' to fall back to monochrome.
920 * Reduced the amount of code that runs before root
921 privileges are disavowed: "normal" and "shadow"
922 passwords now do some initialization as root, but the
923 PAM and Kerberos authorization schemes will be
924 initialized while running as "nobody". Supposedly
925 this closes a potential security hole when using
927 * Added some more sanity checking to configure.
928 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
929 `spotlight', and `critical' hacks.
930 * Added some new modes to `decayscreen'.
931 * Made `deluxe' work in monochrome.
932 * Generalized usage of the Double-Buffer server extension
933 in several hacks (`compass', `deluxe', `interference',
934 `kumppa', and `moire2'.)
935 * Fixed another visual-depth problem in `rd-bomb'.
936 * The screen saver will now defer blanking if neither
937 the keyboard nor the mouse could be grabbed. Instead,
938 it will just try again in a few minutes. This fixes
939 a bad interaction between xscreensaver and programs
940 like VMware that hold the mouse and keyboard grabbed
942 * Added a new erase mode (expanding spiral.)
943 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
944 * Added `penetrate' and `deluxe' hacks.
945 * When linking against Motif 2.x, also link against XPM.
946 * Added support for using /proc/interrupts for idle
947 detection on Linux. Now xscreensaver shouldn't kick
948 in when the user is active on a non-X virtual console.
949 * Upgraded to autoconf 2.13.
950 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
951 in properly; check for _Xsetlocale in -lXintl.)
952 * Portability fixes for sonar.c.
953 * Fixed a compilation problem when you have GL but don't
955 * Made configure notice when MesaGL requires -lpthread.
956 * Made `flame' ignore SIGFPE (not sure if this is the
957 right fix; it seems only to be needed on FreeBSD.)
958 * Kludged `rd-bomb' work on visuals that are of depth 24
959 but that *do not* support pixmaps of depth 32.
960 * Fixed `halo' to work properly in TrueColor.
961 * Changed `xscreensaver.spec' to install the hacks in
962 /usr/X11R6/lib/xscreensaver/ by default, since that's
963 where recent Red Hat distributions put them.
965 * Updated versions of `crystal', `hopalong', and `flow'
967 * Imported `demon' and `loop' modes from xlockmore.
968 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
969 it was always installing a colormap if the
970 `installColormap' preference was set, meaning that
971 `xearth', `xv' and friends were using the wrong
972 colors on 8-bit systems.
973 * Turned off HAVE_PING in `sonar', since it compiles
974 on some Linux systems, but not others of similar
976 Changes since 3.04: * Fixed an off-by-1 in `distort'.
977 * Added `sonar' hack.
978 * New version of `glplanet' (with stars.)
979 * Made all hacks exit when you type `q' or `ESC' at them,
980 and made them obey the WM_DELETE_WINDOW ClientMessage.
981 * Fixed a nonfatal buffer overrun in lament (note:
982 lament still doesn't work with MesaGL 3.0: it dies in
983 lambda_textured_triangle1(), which is Mesa's bug, not
985 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
986 for other folks to generate RPMs.
987 * Made the password code work on HPUX in the situation
988 where: ``enhanced security'' is available; but not
989 used; but the user typed a password more than 8
990 characters long anyway. FTSOHPUX.
991 Changes since 3.02: * Made locking work when passwd aging is enabled.
992 * Added support for PAM (Pluggable Authentication
993 Modules.) It is still turned off by default, though,
994 since it doesn't seem to work on Solaris 2.6, and has
995 been behaving erratically on Red Hat 5.1.
996 * Made each possible authentication method be tried in
997 turn until one succeeds; this means that Kerberos is
998 being used, we will first check Kerberos, and if that
999 fails, will then consult the local password file.
1001 * Save and restore the bits under the passwd dialog,
1002 to avoid leaving a black rectangle behind when
1003 unlocking is cancelled.
1004 Changes since 3.01: * Not everyone has sys/select.h, sigh...
1005 Changes since 3.00: * Some fixes to `reflect'.
1007 * Made it log unsuccessful attempts to unlock the screen
1009 * Fixed a bug where `xscreensaver-demo' could be seeing
1010 a different programs list than `xscreensaver' did.
1011 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
1012 or Athena: demo-mode and the preferences panel are no
1013 longer built in to the daemon, but are now handled by
1014 an external program, `xscreensaver-demo'.
1015 (I decided that this, along with the recent addition
1016 of the `.xscreensaver' config file, justified bumping
1017 the version number to 3.00, since this is a fairly
1018 major architectural change.)
1019 * Lines in the `*programs' resource may now begin with
1020 the character "-", meaning "don't run this hack."
1021 In this way, it's possible to disable a hack without
1022 throwing away the information about it (making it
1023 easier to change your mind later.) Eventually the
1024 preferences/demo mode GUI should represent this as a
1025 checkbox or something.
1026 * Fixed a short race condition where it was possible for
1027 xscreensaver to die with a BadWindow error if it was
1028 blanking the screen just as another window was being
1030 * Made it possible to disable specific modes in `bsod'.
1031 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
1032 many valves. Made the viewpoint in `pipes' be selected
1033 randomly instead of always being -10 degrees.
1034 * Fixed a bug in the XSHM code, in the case where the
1035 server supports the XSHM extension but is not the same
1036 machine as the client.
1037 * Made `rd-bomb' default to taking up the whole screen.
1038 * Made it not try to do fading/unfading if no PseudoColor
1040 * Initial attempt at supporting VT-locking (doesn't work
1042 * Eliminated the `captureStdout' resource; now
1043 `captureStderr' controls both streams.
1044 * Added `-capture-stderr' and `-no-capture-stderr'
1045 command-line arguments.
1046 * Added `glplanet' hack.
1047 * When a hack is selected with `xscreensaver-command
1048 -select', that hack will be used until further notice
1049 (until the saver turns off, or another activation
1051 Changes since 2.32: * Made `xscreensaver-command' print error messages:
1052 the xscreensaver daemon now responds to ClientMessage
1053 events by writing a response message on a window
1054 property, instead of just writing to its stderr.
1055 * Made the ~/.xscreensaver file be automatically reloaded
1056 when the file date changes.
1057 * The password dialog and splash screen no longer depend
1058 on Motif or Athena. This should clear up a number of
1059 focus problems, and is the first step on the path
1060 toward moving all of the Motif/Athena/whatever code
1061 out of the xscreensaver daemon, and into external
1063 * Don't complain about LessTif 0.86 any more, since the
1064 new password dialog makes that problem go away.
1065 * Configure tweaks for Irix 6.5, SunOS 5.something.
1066 * New `-reflect' option to `distort'.
1067 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
1068 so that the Preferences panel can save its settings.
1069 * New version of `rubik'.
1070 * Added `-select N' argument to `xscreensaver-command'.
1071 * Oops, left out some of the `bubbles3d' files...
1072 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
1073 * Made configure warn against MesaGL 2.6.
1074 * Fixed X error at startup when using non-default visual.
1075 * New version of `crystal', `ant', and `atlantis' from
1077 * New hack, `bubble3d'.
1078 * Added some new modes to `bsod'.
1079 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
1080 to be after Motif instead of before (Lesstif on Irix
1082 Changes since 2.28: * Work around a bash bug in configure.
1083 * Tweaked HPUX paths again. FTSOHPUX.
1084 * Made configure recommend against LessTif 0.86, due
1085 to a bug in that version that causes a security hole
1086 in the screen locking code. LessTif 0.87 will fix it.
1087 * Made all of the `--with' options to `configure' accept
1088 a directory option as well (so that --with-motif=/FOO
1089 will add -I/FOO/include -L/FOO/lib). I believe this is
1090 the Configure Party Line of how do to such things.
1091 * Fixed a bug where the mouse was left un-grabbed
1092 after the first time the graphics hack was changed
1093 (simplified all of the mouse-grabbing logic.)
1094 * Maybe possibly perhaps made `vidwhacker' really not
1095 leave stray xv windows around. This time for sure.
1096 * Added a new erase mode (random dots fizzling out.)
1097 * Added `-prefs' argument to `xscreensaver-command',
1098 that brings up the Preferences dialog directly (it
1099 seems that nobody ever noticed the `Preferences' button
1100 on the Demo Mode dialog, maybe this will help.)
1101 * Added a splash screen. Turn it off with *splash:false.
1102 Changes since 2.27: * Better macsbug text in `bsod'.
1103 * New version of `distort' with many new modes.
1104 * Plugged a leak in `coral'.
1105 * Tweaked configure for HPUX.
1106 * Removed some compiler warnings.
1107 * More consistent usage of stderr versus stdout.
1108 * More diagnostics should an X error occur.
1109 * Fixed a possible crash in SGI-specific unfading code.
1110 Changes since 2.26: * Improved version of `distort'.
1111 * Made `lament' compile against OpenGL 1.0 (though it
1112 still requires 1.1 to work properly.)
1113 * Updated my email address and home page.
1114 Changes since 2.24: * Improved motion in `rd-bomb'.
1115 * Added XSHM (shared memory extension) support to the
1116 `distort', `interference', `moire', `rd-bomb', and
1117 `swirl' hacks, which speeds them up a bit.
1118 * Added `lament' hack.
1119 Changes since 2.23: * Tweaked the order of the -L options again.
1120 * Cleaned up configure's `--help' message.
1121 * Added `kumppa' hack.
1122 * Smarter maze-solving algorithm in `maze'.
1123 * Took `xlyap' out of the default list of hacks, since
1124 it's just incredibly buggy (and slow.) Maybe someday
1125 someone will fix it...
1126 * Added `distort' hack, but didn't add it to the default
1127 list (yet) because it's still too slow.
1128 * Made the Athena demo dialog look more like the Motif
1129 version; it has a text-entry field now, too.
1130 * Made the Athena password dialog echo asterisks, like
1131 Motif does, instead of using a flyspeck font.
1132 * Some random configure tweaks.
1133 * Added a `timestamp' resource that makes the `-verbose'
1134 messages include the time at which they were printed.
1135 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
1136 let the user's "*background" resource show through.
1137 Fixed it in a different way.
1138 Changes since 2.21: * Added support for the DPMS server extension (Display
1139 Power Management System.)
1140 * Made configure advertize the `--enable-subdir' option a
1141 little more, since that seemed to cause some people
1142 stress. Also, made that directory be built into the
1143 xscreensaver executable, as a hardcoded prefix to
1144 $PATH. (Might help, shouldn't hurt.)
1145 * Made configure prefer the two-arg gettimeofday to the
1146 one-arg version, since AIX doesn't have any prototypes.
1147 * Made it work with Xaw3d (the 3D Athena library.)
1148 * Made `make install' create directories as necessary.
1149 * New version of lmorph from Sverre.
1150 * Added `crystal' and `discreet' hacks from xlockmore.
1151 * Added a new mode to `bsod'.
1152 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
1153 (It now describes the two states as "screen blanked
1154 since..." and "screen non-blanked since..." instead of
1155 "active since..." and "inactive since..." which a lot
1156 of people interpreted as meaning the opposite of what
1158 * Improved some error messages, in the hopes of making
1159 the distinction between the xscreensaver and
1160 xscreensaver-command programs more obvious.
1161 * Rewrote (and reorganized) parts of the xscreensaver and
1162 xscreensaver-command manual pages.
1163 * Renamed xscreensaver's `-lock' command-line option to
1164 be `-lock-mode', to avoid confusion with the `-lock'
1165 option to xscreensaver-command, which does a totally
1167 * Removed xscreensaver's `-demo' command-line option for
1168 a similar reason; use `xscreensaver-command -demo'
1170 * Disabled SGI's ``scheme'' nonsense in a better way than
1171 fully-qualifying the background colors in every single
1173 * Fixed some other minor cosmetic problems when *sgiMode
1175 * Fixed an X error in `bsod -root' (how ironic...)
1176 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
1177 grabbed properly (meaning the window manager menu could
1178 pop up over the demo-mode display.)
1179 * Fixed a bug that made the stderr output sometimes get
1181 * Fixed a bug that made the demo-mode scrollbar move too
1183 * Protected against a possible buffer overflow.
1184 * Made `vidwhacker' not leave stray xv windows around.
1185 * New version of `ant' so that Bagley doesn't calve.
1186 * Make configure on AIX get XShm from the right library.
1187 Changes since 2.18: * One file was missing from the tar file. Fixed.
1188 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
1189 * Added `epicycle' hack.
1190 * Added `interference' hack.
1191 * Added `truchet' hack.
1192 * Added `bsod' hack.
1193 * Added some new modes to `vidwhacker'.
1194 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
1195 can draw on arbitrary externally-provided windows.
1196 * Synched with xlockmore 4.11a01.
1197 * Added `flow' hack.
1198 * Added `atlantis' GL hack.
1199 * Renamed `puzzle' hack to `jigsaw', since xlock already
1200 had a different mode called `puzzle'.
1201 * Made it self-configure properly when Motif 2.1.0 is
1202 being used (requires -lXp now, sigh...)
1203 Changes since 2.15: * Made `flag' able to do XPM images.
1204 * New look for the xscreensaver logo (`xroger').
1205 * Fixed compilation error on Suns with adjunct passwords.
1206 * Got multi-architecture builds working again.
1207 * Some configure tweaks for building on HPUX and Solaris.
1208 * Fixed bug in decayscreen.
1209 * Fixed typo in passwd.c.
1210 * Made `cynosure' not die when colormap is full.
1211 Changes since 2.14: * Added `cynosure' hack.
1212 * Added `moire2' hack.
1213 * Tweaked `erase.c' some more.
1214 * Made unfading a bit smoother.
1215 * Added `vidwhacker' hack (not installed by default.)
1216 * Added `stairs' hack.
1217 * Split `escher' into `cage' and `moebius', as per
1219 * Changed subprocess handling to use sigaction() instead
1220 of signal() if it's available (this is necessary for
1221 SCO but should work fine on other systems too.)
1222 * Various other tweaks.
1223 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
1224 * Put in some kludges to work around a LessTif bug.
1225 * XScreenSaver is known to work with LessTif 0.82 now.
1226 * Made fading work on high-end SGI video hardware.
1227 * Fixed another SGI-specific bug in screen grabbing;
1228 will the madness never cease?
1229 * Fixed another crash in `xlyap'.
1230 Changes since 2.12: * Made `decayscreen' do directions other than down.
1231 * Improved `puzzle'.
1232 * Fixed a crash in `xlyap'.
1233 * Added CDE info to the man page, removed `cde.txt'.
1234 * Configure tweaks for Zippy.
1235 * Turned off the signal handling in `bubbles' because
1236 it was sometimes failing to die.
1237 * Added `hacks/xscreensaver-sgigl.c' to make it possible
1238 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
1239 with xscreensaver. Finally!
1240 * Fixed a buffer overrun in the locking code that some
1241 wily, malicious cracker must have slipped in.
1242 * Disabled Motif drag-and-drool in the dialog box
1243 buttons, since it's broken in some old versions of
1245 Changes since 2.11: * Added `README.debugging'.
1246 * Added `puzzle' hack.
1247 * Added `xlyap' hack.
1248 * Added `default-n' as a visual name, so that one can
1249 have -install on by default, but turn it off for
1250 certain poorly-behaved hacks (like xv.)
1251 * Added support for grabbing frames of external video
1252 (on SGI) to the screen-grabbing hacks (decayscreen,
1253 slidescreen, slip, blitspin, and puzzle.)
1254 * Improved look of tiles in `slidescreen'; fixed its
1255 color allocation problem.
1256 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
1257 * Added `lissie', `mountain', `triangle', `worm',
1258 `rotor', and `ant' from xlockmore.
1259 * Updated `sierpinski', `galaxy', and `lisa'.
1260 * Thickened the lines in `braid' and `lmorph'.
1261 * Updated VMS makefiles.
1262 * Renamed `fract' to `vines'.
1263 * Added `xjack' hack.
1264 * Made a few more hacks use erase.c, and added a few
1266 * Fixed compilation problem with Sun's version of OpenGL.
1267 * Added ability to use sigaction() instead of signal()
1268 to work around a SCO kernel bug.
1269 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
1270 * Configure tweaks for *BSD.
1271 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
1272 * New version of `maze' with some new algorithms.
1273 * New colorized version of `rocks'.
1274 * Fixed a bug in qix on 64-bit machines.
1275 * Fixed a bug in the -time option.
1276 * Fixed a bug in configure related to LessTif.
1277 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
1278 * Made multi-architecture ($VPATH) builds work properly.
1279 * Merged new GL stuff from xlockmore (rubik, morph3d.)
1280 * Fixed intermittent crashes in `imsmap' and `munch'.
1281 * Added `fadeplot' hack from xlockmore.
1282 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
1283 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
1284 configure to detect the extra-random -Xss library.
1285 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
1286 * Fixed low-color behavior of `goop', `pyro', `starfish',
1287 `greynetic', `flame', `halo', and `moire'.
1288 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
1289 * Added `munch' hack.
1290 * Added basic dependencies to the Makefile.in files.
1291 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
1292 * Made the yow/fortune program be a configure option.
1293 * Various configure tweaks.
1294 Changes since 2.00: * Added `goop' and `starfish' hacks.
1295 * Added colomap cycling to `halo'.
1296 * Made `attraction' use the new colormap allocator.
1297 * Added better $PATH diagnostics.
1298 * There was a bug in frand! Color selection should be
1300 Changes since 1.34: * Converted to use `configure' instead of `imake'.
1301 * ANSI C is now required.
1302 * Added Kerberos locking support, from Nat Lanza.
1303 * Made the stderr text use overlay planes, if possible.
1304 * Reworked the xlockmore compatibility stuff again.
1305 * Added `gears', `superquadrics', `escher', `pipes',
1306 and `sproingies' hacks (depend on OpenGL.)
1307 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
1308 Changes since 1.32: * Made it work with multi-headed displays.
1309 * Generalized sub-process management (Unix sucks!)
1310 * Added interactive mouse frobbing to Julia.
1311 * Added (untested) support for HPUX shadow passwords.
1312 * Made normal non-shadow passwords be checked if the
1313 shadow passwords aren't accessible for some reason.
1314 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
1315 made it possible to specify the desired visual on a
1317 * Cleaned up / restructured the driver: no more globals.
1318 * Made the Motif and Athena dialogs share more code.
1319 * Probably fixed some Athena colormap-installation bugs.
1320 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
1321 * Fixed divide-by-zero in bright random colormaps.
1322 * Added an improved version of xlock's `flag' hack.
1323 * Made unfading work better, and not flicker on SGIs.
1324 * Added `sphere', `forest', `lisa' hacks from xlockmore.
1325 * Added (untested) support for SunOS Adjunct passwords.
1326 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
1327 * Cleaned up xlockmore compatibility layer.
1328 * Made `blitspin' able to grab an image off the screen.
1329 * Ported `swirl' and `bouboule' hacks from xlockmore.
1330 * Made the driver more careful about not leaving bits on
1331 the screen, or allowing other windows to raise
1332 themselves: it now re-blanks the screen every so often.
1333 * Added `-time' option to `xscreensaver-command'.
1334 * Improved SGI screen-grabbing some more: now it can grab
1335 TrueColor screens into PseudoColor windows and have the
1336 colors still come out semi-reasonably.
1337 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
1338 SGIs when windows of different visuals are present, by
1339 using the XReadDisplay() extension to get a true 24-bit
1340 image out of the frame buffer.
1341 * Made `noseguy' be in color, if compiled with XPM.
1342 * Ported `braid', `drift', `fract', `galaxy', `grav',
1343 `ifs', `julia', `laser', `lightning', `penrose',
1344 `sierpinski', `slip', `spiral', and `strange' hacks
1346 * Merged `hopalong' hack with a more recent version.
1348 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
1349 * Merged in support for non-Motif locking and demo mode.
1350 * Made `blitspin' and `bubbles' work in TrueColor.
1351 * Fixed a stupid bug I introduced in `imsmap'.
1352 * Added `poly' and `gravity' options to `qix'.
1353 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
1354 * Made `fade' and `unfade' work on 8-bit SGIs.
1355 * Made the dialog boxes more Motify.
1356 * Added `bubbles' hack.
1357 Changes since 1.25: * Added `lmorph' hack.
1358 * Added viscosity and mouse-control to attraction.
1359 * Fixed possible bad color choices in qix and attraction.
1360 * Added ramp-mode to halo.
1361 * Added a new RNG, which is faster and more portable
1362 than using the RNG in libc.
1363 * Made locking work on SCO.
1364 * Various other minor tweaks that I don't remember.
1365 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
1366 and present them on the screensaver window itself.
1367 * Made demo mode work correctly with non-default visuals
1368 and color maps, instead of always using the defaults.
1369 * Added -visual argument to all included screenhacks.
1370 * Support for the R6 MIT-SCREEN-SAVER server extension.
1371 * Made the demo mode list scroll properly.
1372 * Added `pedal' hack.
1373 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
1374 decayscreen, and xroger. Fixed apparent conservation-
1375 of-mass problem in pyro; made the shrapnel round.
1376 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
1377 Changes since 1.21: * Minor tweaks for X11R6.
1378 * Fixes for non-default visuals.
1379 Changes since 1.20: * Fixed bug in color blitspin; added default image.
1380 * Added diagnostics to noseguy. Fixed off-by-one
1381 error in flame. Added some missing casts.
1382 Changes since 1.18: * Added `flame' hack.
1383 * Fixed a minor Motif dialog text field bug.
1384 * Fixed yet another XPointer-not-defined-in-R4 bug.
1385 Changes since 1.17: * Added support for shadow password files.
1386 * Fixed some Motif-related locking bugs.
1387 * Added diagnostics when locking is disabled.
1388 * Made blitspin able to use the XPM library.
1389 * Added `decayscreen' hack.
1390 Changes since 1.16: * Added `halo' hack.
1391 Changes since 1.15: * Portability fixes.
1392 Changes since 1.14: * Broke the driver up into more source files.
1393 * Moved the hacks into their own directory.
1394 * Made all `time' parameters accept the 00:00:00 syntax,
1395 so that even the parameters which are normally read as
1396 minutes can be specified in seconds.
1397 * Added colormap cycling to `imsmap'.
1398 * Made hyper work with K&R compilers.
1399 Changes since 1.13: * Added `orbit' option to `attraction' hack.
1400 * Added `lock-timeout' option.
1401 * Cleaned up options of `maze' hack.
1402 Changes since 1.8: * Added demo mode, and locking.
1403 * Added `maze' hack.
1404 * Added `norotate' option to `rocks' hack.
1405 Changes since 1.4: * Works when run from XDM before anyone logs in.
1407 * Can use `xv' as a slideshow without using up colormap
1408 entries while the screen is not blanked.
1409 * Fixed a BadDrawable error in non-XIdle mode.
1410 * Added `blitspin' and `imsmap'.
1411 Changes since 1.0: * Current list of included hacks is now: qix, helix,
1412 rorschach, attraction, greynetic, rocks, pyro,
1413 hopalong, and noseguy.