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 2.2 and MacOS X 10.4.0
31 Interested in writing a new screen saver?
33 See the README.hacking file.
35 ===============================================================================
37 XScreenSaver has an extensive manual -- please read it!
39 ===============================================================================
41 Changes since 4.24: * Ported to MacOS X! (10.4.0 or newer)
42 * API change: instead of providing a single screenhack()
43 function that does not return, screen savers using the
44 screenhack.h framework must now provide "init" and
45 "draw one frame" functions instead. All bundled savers
46 have been updated; third-party patches will need work.
47 * All image-loading happens asynchronously.
48 * xscreensaver-getimage-file caches the contents of the
49 image directory for a few hours, so consecutive runs
50 won't have to re-list the whole directory tree.
51 * New hacks, `topblock' and `glschool'.
52 * Removed `xteevee' (superceded by `xanalogtv').
53 * Added variable-sized puzzle pieces to `jigsaw'.
54 * Changes to the defaults and command-line options of
55 many hacks to make the .xml files more consistent.
56 * Reap zombies in `glslideshow' and `carousel'.
57 * `sonar' works without setuid on OSX (dgram icmp).
58 * `xmatrix -mode pipe' displays the text of a subprocess.
59 * `endgame' has higher resolution chess-piece models.
60 * `webcollage' takes a -directory option to get images
61 from a local directory.
62 * The RPM spec file no longer auto-restarts xscreensaver
63 when a new version is installed. Restart it manually.
64 Changes since 4.23: * New versions of `cube21', `glsnake', `celtic'.
65 * Backed out a DPMS-related patch that cause desktop
66 flickering with some X servers.
67 * Fixed startup crash in getgroups() when running setuid.
68 * Default to not displaying stderr on the saver window.
69 * Fixed bad free() in "Documentation" button.
70 * Don't try to run hacks that aren't installed.
71 * Minor fixes to various XML config files and man pages.
72 Changes since 4.22: * New hacks, `glhanoi', `cube21', `timetunnel',
73 `juggler3d', and `celtic'.
74 * New versions of `tangram', `webcollage', `hypertorus',
75 `polytopes', and `ripples'.
76 * `sonar' is now quiet about unresolvable hosts.
77 * Minor corrections to BASIC code in `apple2'.
78 * xscreensaver-demo now provides an RPM clue when none
79 of the hacks seem to be installed.
80 * Don't install `ant' by default, since there is some
81 Java tool of that name, which was causing confusion.
83 * Made screen grabbing work again on MacOS 10.4.2.
84 * No longer prints bogus warnings about ClientMessages
85 intended for the window manager.
86 * Ignore unprintable characters in passwd entry field.
87 * Fixed yet another cross-host-display image-loading
89 * `xscreensaver-command -watch' and `-time' now work
91 Changes since 4.21: * Fixed a bug in the new mouse-motion code that caused
92 the screen to never blank on multi-head non-Xinerama
94 * New hacks, `interaggregate', `antmaze', `tangram',
96 * Minor tweaks to `fiberlamp', `ifs', `slidescreen',
97 `zoom', `sonar', `fireworkx', `whirlwindwarp',
98 `bubble3d', and `rd-bomb'.
99 * Added motion blur to `blinkbox'.
100 * `bsod' now includes Longhorn's "RSOD", and OS/2.
101 * Fixed `-wireframe' usage in most hacks and man pages.
102 Changes since 4.20: * New hack: `fliptext'.
103 * Changed default configure installation directories:
104 /usr/bin/ for xscreensaver, etc.;
105 /usr/libexec/xscreensaver/ for hacks;
106 /usr/share/xscreensaver/config/ for xml files.
107 * All the text-manipulating screen savers can have their
108 text source configured via `xscreensaver-demo' now.
109 * xscreensaver.spec now builds three RPMs:
110 base (no hacks); extras (2d hacks); and gl-extras.
111 * Added `-program' and `-front' option to `gltext'.
112 * Added `-shells' to `molecule'.
113 * Fixed text-alpha glitch in `carousel'.
114 * New `pacman': the ghosts can be killed now.
115 * Fixed a bug in screen-grabbing GL hacks where images
116 would be tiled instead of scaled on machines that
117 can't do large textures.
118 * `webcollage' can hit Flickr now.
119 * New (rewritten) implementation of `ifs'.
120 * The unlock dialog can be made to have a "New Login"
121 button that will run `gdmflexiserver'. Experimental!
122 * Fixed non-ASCII display bug in `starwars'.
123 * Configure finds a default for imageDirectory.
124 * "xscreensaver-command -lock" now works even if
125 in "screensaver disabled" mode.
126 * If a bad password is typed while CapsLock is on, the
127 unlock dialog says "CapsLock?" instead of "Sorry".
128 * Mouse motion only counts as activity if the mouse moved
129 more than 10 pixels (so the screen won't unblank every
130 time you bump your desk.)
131 * New mode option "random-same": if you have multiple
132 monitors, this will run the *same* randomly chosen
133 hack on each screen, instead of different ones on each.
134 Changes since 4.19: * New hacks, `fiberlamp', `boing', `boxfit', and
136 * Rewrote `glslideshow' again: should be faster now.
137 * Sped up loading of images in GL programs.
138 * `starwars' uses texture-mapped fonts now.
139 * New `bsod' modes: tru64, hppa, and nvidia.
140 * Updates to `webcollage', `juggle', `pinion',
141 `fireworkx', `sonar', `extrusion', `substrate', and
143 Changes since 4.18: * New hacks, `substrate', `intermomentary', `fireworkx',
145 * New version of `flow'.
146 * Made /proc/interrupts work again on Linux 2.6.
147 * Made `analogtv' not hog the CPU.
148 * Made analogtv-based hacks work properly on PPC/ARM.
149 * Fixed a bad memory leak in `piecewise'.
150 * Minor updates to `sonar', `molecule', `glmatrix',
151 `galaxy', and `webcollage'.
152 * Removed support for GTK 1.x (everyone uses 2.x now.)
153 Changes since 4.17: * Oops, pay no attention to the man behind the curtain.
154 Changes since 4.16: * New hacks, `anemotaxis' and `memscroller'.
155 * Fixed a bad bug that caused `vidwhacker' to never die.
156 * Fixed normals and lighting in `polyhedra'.
157 * Don't reuse the window when changing hacks (to work
158 around bugs in some GL implementations.)
159 * Made `xscreensaver-getimage-file' skip thumbnail-sized
161 * Fixed endian problem in `barcode' on non-x86.
162 * Updates to `webcollage', `apple2', `fuzzyflakes',
163 `atunnel', and `pacman'.
164 * Timing tweaks to `bubble3d', `bouncingcow', `engine',
165 `gltext', `lavalite', `molecule', `spotlight',
166 `sballs', `boxed', `blinkbox', and `circuit'.
167 * Configure updates for Fedora core 2 / xorg 6.7.0.
168 * Compile without warnings under gcc 3.3.3.
169 * I give up: don't blank or lock the screen if we can't
170 get a keyboard grab. In that case, both choices are
172 Changes since 4.15: * New hacks, `polyhedra', `fuzzyflakes', `antinspect',
174 * Minor updates to `webcollage', `bsod', `endgame',
175 `antspotlight', `xmatrix', and `glmatrix'.
176 * Added support for the RANDR (Resize and Rotate)
177 extension to detect when the size of the desktop has
178 been changed while xscreensaver is already running.
179 * Possibly-futile attempt to work around "rdesktop"
181 * Made `xscreensaver-getimage -file' still work even if
182 imageDirectory is unset.
183 * Convert Latin1 to ASCII in `starwars' and `phosphor'
184 (since the GLUT font only has ASCII glyphs.)
185 * Fixed randomization in `noof'.
186 * Added "GetViewPortIsFullOfLies" preference to work
187 around longstanding XFree86 bug #421.
188 * Made `sonar' subnet pinging work properly on bigendian
189 machines (e.g., PPC.)
190 Changes since 4.14: * New hacks, `wormhole', `mismunch', `noof', and
192 * `phosphor' and `apple2' include vt100 emulators now:
193 this means you can do "phosphor -program top", or
194 can use either program as an xterm replacement:
195 "apple2 -text -fast -program 'xemacs -nw'".
196 * `analogtv' (and related) fill the screen better.
197 * The '-gradient' option works in `atlantis' now.
198 * Minor updates to `blinkbox', `queens', `endgame',
199 `glmatrix', `mirrorblob', `blocktube', and `molecule'.
200 * Integrated SuSE's "external passwd helper" support.
201 * Marginally better /tmp handling in various programs.
202 * Updated config defaults for xplanet 1.0.3.
204 Changes since 4.13: * New hacks, `fontglide', `apple2', `xanalogtv', `pong',
205 `gleidescope', `mirrorblob', and `blinkbox'.
206 * New version of `glsnake' (with many more models.)
207 * Another Windows crash in `bsod'; also HVX/GCOS6/TPS6.
208 * New version of `endgame'.
209 * Screen grabbing works on MacOS X.
210 * Various minor fixes.
211 Changes since 4.12: * On Xinerama systems, xscreensaver now runs one hack on
212 each monitor (just like in "real" multi-head mode)
213 instead of running one hack stretching across all the
214 screens. Note that for this to work with any 3rd party
215 screensavers, they must update their "vroot.h" file.
216 * `webcollage' and `vidwhacker' display images using
217 `xscreensaver-getimage' now.
218 * Added `ljlatest' script for use with `starwars' and
220 Changes since 4.11: * New GL hacks, `flipflop', `antspotlight', and
222 * Added VMS to `bsod'.
223 * Compile without warnings in "gcc -pedantic".
224 * Updates to `webcollage' and `queens'.
225 * Fixed a bug that could cause PAM to hang.
226 Changes since 4.10: * New hacks, `hypertorus', `cubestorm', `glknots',
227 `blocktube', and `glmatrix'.
228 * Updates to `cloudlife', `engine', `xmatrix', and
230 * Rewrote `glslideshow': it should work on somewhat
231 wimpier video cards now.
232 * Various portability tweaks.
233 Changes since 4.09: * New hacks, `cloudlife' and `klein'.
234 * Added Apple ][+, HPUX, and OS/390 sessions to BSOD.
235 * Added some Matrix Reloaded text to `xmatrix'.
236 * Updates to `webcollage', `eruption', `jigglypuff',
237 `metaballs', and `endgame'.
238 * Completely ignore the `memoryLimit' setting now,
239 since it was still causing people GL grief.
240 * Various minor fixes.
241 Changes since 4.08: * New hacks, `flyingtoasters', `bouncingcow',
242 `jigglypuff', and `glslideshow'.
243 * More models in `engine'.
244 * Rewrote `xscreensaver-getimage' to remove reliance on
245 external image loaders (xv, chbg, xloadimage, etc.)
246 and to reduce flicker when loading files.
247 * Made `gflux' and `flipscreen3d' be mouse-spinnable.
248 Changes since 4.07: * New hacks, `atunnels' and `piecewise'.
249 * Physics improvement in `fluidballs'.
250 * Various fixes for XDarwin systems (X11 on MacOS X.)
251 * Added -clock option to `barcode'.
252 * Minor fixes to `endgame', `flurry', `flipscreen3d',
254 Changes since 4.06: * New hacks, `flurry', `metaballs', `eruption',
255 `popsquares', and `barcode'.
256 * Minor updates to `maze' for high density mazes.
257 * Added double buffering to `fluidballs' and `whirlygig'.
258 * Bug fixes for running xscreensaver to a remote XFree86
259 display (which nobody would ever do...)
260 * Updated `webcollage' (faster Alta Vista searching.)
261 * Updated `glplanet' so the sun sets in the west.
262 * Updated `sproingies' with smooth, unsegmented surfaces.
263 * Fixed Perl version-sensitivity in
264 `xscreensaver-getimage-file'.
265 * Fixed GTK2 scrolling bug in `xscreensaver-demo'.
266 Changes since 4.05: * New hack, `glblur' (disabled by default, since it
267 requires fast OpenGL texture support.)
268 * New hack, `halftone'.
269 * Updates to `endgame', `queens', `bumps', `glplanet',
270 `engine', and `circuit'.
271 * New version of `menger' that uses far fewer polygons.
272 * Fixed minor bug in `critical' that could cause some
273 bogus X servers to crash.
274 * Better labels in `molecule': the labels now appear to
275 be attached to the atoms, instead of floating in front
277 * Fixed bug that could rarely cause GL hacks to fail to
278 double-buffer (causing intermittent flickering.)
279 * Fixed a relative-URL-parsing bug in `webcollage'.
280 * Fixed a bug that (sometimes) caused the window manager
281 close box to kill `xscreensaver-demo' with a crash
282 instead of a graceful exit.
283 * Updated xscreensaver.pam to the Red Hat 7.3 way.
284 * More Gnome2-related configure crap.
285 * Updated to latest `config.guess' and `config.sub'.
286 * Fixed occasional core dump in `distort'.
287 * Added a Linux fsck failure and kernel panic to `bsod'.
288 * Added MacOS X kernel panic to `bsod'.
289 * Fixed a bug in `bsod' (all bsod bugs are ironic.)
290 * Fixed a bug that caused `xscreensaver-gl-helper' to
291 print a nonsense visual ID with some versions of
292 `printf': this could cause GL programs to display
293 incorrectly (e.g., flickery.)
294 Changes since 4.04: * More `configure' tweaks to try and get things working
295 on systems that both Gtk 1.x and 2.x installed.
296 * New hack, `endgame'.
297 * Minor updates to `gltext'.
298 Changes since 4.03: * Support for GTK 2.x / GNOME 2.x.
299 * The `configure' script will now use `pkg-config' if
300 you have it, in preference to `gtk-config', etc.
301 * New hacks, `lavalite', `queens', and `anemone'.
302 * Minor updates to `spheremonics', `gltext', `xmatrix'.
303 * You can use the mouse to manually spin most of the GL
304 hacks now (when they are displaying in a window.)
305 * Fixed a bug in `webcollage' (due to recent Alta Vista
306 url changes) that was causing it to try and load
307 incorrect image URLs.
308 * Made `xscreensaver-getimage' use gdk_pixbuf if it is
309 available: this means that those hacks that load images
310 will no longer rely on "xv", "xloadimage", etc. This
311 will close a race condition that could sometimes cause
312 your desktop background to be changed; and also makes
313 it possible for those programs to operate on image
314 files when running in windowed mode.
315 * `webcollage' can now be used in conjunction with
316 `driftnet' to display images snooped from your local
317 ethernet instead of obtained from search engines.
318 * Added man pages for all the hacks that didn't have
320 Changes since 4.02: * New hack, `spheremonics'.
321 * Minor updates to `webcollage', `cage', `moebius',
322 `morph3d', `boxed', `circuit', and `helix'.
323 * `pulsar' and `extrusion' can now load texture JPEGs.
324 * `rubik' now does non-square cubes.
325 * `fluidballs' now does various sizes of balls.
326 * `menger' and `sierpinski3d' now also show polygon
328 * `molecule' displays real subscripts in the formulae.
329 * GTK internationalization/localization support.
330 * Better detection of the various versions of libxml.
331 * Upgraded to autoconf 2.53 (from 2.13.)
332 Changes since 4.01: * Plugged a few minor leaks in `xscreensaver' and
334 * New hacks, `cubenetic' and `fluidballs'.
336 * Fixed sphere projection error in `glplanet'; installed
337 a better image of earth.
338 * Added Win2K and MacOS 1 crashes to `bsod'.
339 * Put back previous (better) version of `forest' that
340 was accidentially downgraded in the last release.
341 * New version of `bumps'.
342 * Made FPS computation in GL hacks more efficient: it
343 will influence the results less, thus resulting in
344 higher (but more accurate) reported frame rates.
345 Changes since 4.00: * New hacks: `twang', `glsnake', `boxed', `sballs',
347 * New hacks `apollonian', `euler2d', `juggle',
348 `polyominoes' and `thornbird', from xlockmore.
349 * Merged recent xlockmore changes into `ant', `braid',
350 `demon', `discrete', `drift', `fadeplot', `forest',
351 `grav', `hopalong', `ifs', `laser', `lightning',
352 `lisa', `lissie', `loop', `mountain', `penrose',
353 `rotor', `sierpinski', `slip', `sphere', `spiral',
354 `strange', and `vines'.
355 * Fixed the `gltext' bug that sometimes caused
356 horizontal lines to vanish again. This time for sure.
357 * Sped up `webcollage' by adding a C helper program to
358 replace the PPM pipeline. It also pastes images
359 semi-transparently now.
360 * Added support for the gdk_pixbuf library: if this lib
361 is available, then `blitspin', `xflame', and `flag'
362 can load GIF, JPEG, and PNG images in addition to XPM
364 * Fixed a rare race condition where the desktop-grabbing
365 hacks could sometimes leave the screen wedged, if the
366 user moved the mouse exactly when they were grabbing
367 the screen image (it would un-wedge the next time the
368 saver timed out or was activated.)
369 * Fixed incorrect colors in the screen-grabbing GL hacks
370 (`gflux' and `flipscreen3d'.)
371 * Made SIGHUP restart the daemon process (though using
372 `xscreensaver-command -restart' is still the preferred
374 * Tweaks to `xspirograph'.
375 * Minor configure and portability tweaks.
376 Changes since 3.34: * Redesigned `xscreensaver-demo' GUI: it now includes
377 small-preview and per-hack configuration dialogs.
378 * Added three new modes of operation: `One Screen Saver',
379 `Blank Screen', and `Don't Blank' (in addition to the
380 historical `Random Screen Saver').
381 * Configure now defaults to installing the hacks in
382 <prefix>/lib/xscreensaver/ instead of <prefix>/bin/.
383 (Most distros already did it this way.)
384 * New GL hacks, `menger', `engine', `flipscreen3d'.
385 * Made `sierpinski3d' be more colorful.
386 * New versions of `xmatrix' and `nerverot'.
387 * Fixed a bug in `starwars' that made the font be drawn
388 with thin lines in -root mode.
389 * Fixed a bad colormap bug in `crystal' that could make
390 *subsequent* hacks malfunction!
391 * Made `gflux' able to grab screen images (`-mode grab').
392 * Updated `webcollage' for recent search engine changes.
393 * Removed most command-line options to `xscreensaver':
394 just edit the ~/.xscreensaver file instead.
395 * Improved behavior on multi-screen and Xinerama systems:
396 the mouse now stays on the screen where the user left
397 it, and the password and splash dialogs always appear
398 on the screen that has the mouse.
399 * Made the splash dialog use more Gtk-like colors;
400 made it have only two buttons, "Settings" and "Help".
401 * Made `sonar' understand `.ssh/known_hosts2' format
402 files, and be better about stripping out illegal
404 Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
405 some versions of the GL libraries (appear to) allocate
406 hundreds of megs for every GL program, so `memoryLimit'
407 was causing GL programs to malfunction or crash on
409 * Improved fading on TrueColor XFree86 4.1.x systems.
410 * New GL hack, `circuit'.
411 * Added `fuzz' mode to `decayscreen'.
412 * New version of `whirlygig'.
413 * Added links to `xplanet' and `sphereEversion'.
414 * Fixed rare race condition that could make `sonar' hang.
415 * Fixed potential crash in `speedmine'.
416 * Made `xscreensaver-demo' not crash when imageDirectory
417 was set to a non-existent directory.
418 * Made `xscreensaver-getimage-video' invoke XawTV's
419 `streamer' program better.
420 * Made `phosphor' and `starwars' deal with CR, LF,
421 or CRLF line endings.
422 * Changes for Cygwin compilation environments.
423 * Made `sonar' compile on systems that can't ping.
424 * Configure changes for HPUX 10.20.
425 * Made PAM code work on Red Had 4.2 systems.
426 * Made `xscreensaver-command -deactivate' work when the
427 saver is not active: what that does is reset the idle
428 timer, as if keyboard input had been detected. This
429 was added for the benefit of people writing DVD-playing
430 software: they can now prevent the screensaver from
431 kicking in by sending a -deactivate message once a
432 minute while the movie is playing and not paused.
433 * Various minor portability tweaks.
434 Changes since 3.32: * New hacks, `speedmine' and `whirlygig'.
435 * Sped up `pyro', made the explosions look a bit better.
436 * Added better stars to `glplanet' and `starwars'.
437 * Many internal changes to `webcollage'.
438 * Some new options to `attraction'.
439 * Minor fix to `noseguy' to avoid un-erased pixels.
440 * Rewrote the screen-eraser effects so that they complete
441 in the same amount of time regardless of how slow
442 your X server is (some of them were glacial on servers
444 * Fixed a potential free memory reference that could
445 sometimes cause a crash at startup.
446 * Possibly fixed a problem that could cause the daemon
447 to crash with an X error. I was never able to
448 reproduce this problem, but I think I might have
449 figured out what caused it.
450 * Worked around a problem that caused PAM authentication
451 to fail on some Red Hat 7.x systems.
452 * Added a `memoryLimit' parameter that controls the
453 amount of memory a graphics hack may allocate: if they
454 try to allocate more than this, malloc() will fail
455 (and they will exit or (safely) crash, rather than
456 hogging memory.) Default is 50M.
457 * Made `gnome-help-browser' be the default way to display
458 man pages in `xscreensaver-demo', if running on a
460 Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
461 now operate on randomly chosen image files from disk,
462 or on frames captured from the system's video input,
463 instead of (or in addition to) manipulating images of
465 * Rewrote `vidwhacker' to use the new image-grabbing
467 * Made fading work on TrueColor XFree86 4.x systems.
468 * Fixed a subtle rendering bug in `atlantis' (the fish
470 * Made `atlantis' have a texture simulating light
471 reflections from the surface of the ocean.
472 * Fixed up label placement in `molecule'.
473 * Better color bars in `xteevee'.
474 * Made `install-strip' not try to strip scripts.
475 Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
476 the documentation to reflect the fact that all your
477 DPMS settings are now belong to xscreensaver.
478 * Fixed the `xscreensaver.spec' file so that `--force'
480 * New versions of `rotzoomer' and `nerverot'.
481 * Fixed an OSF/1 compilation problem in `molecule'.
482 Changes since 3.29: * New hacks, `molecule', `dangerball', and `rotzoomer'.
483 * New version of `gflux'.
484 * Made `gltext' able to display the current time.
485 * Fixed a floating-point-precision problem in `gltext'
486 that sometimes caused horizontal lines to vanish.
487 * Removed the `-window-id' option from the hacks:
488 it never worked right, and was unnecessary.
489 * Made the `starwars' hack use thicker lines, antialias
490 the text, and fade out at the far edge instead of just
492 * Fixed an SHM segment leak in `moire'.
493 Changes since 3.28: * Better rendering of the new logo.
494 * New hack, `gltext'.
495 * Added `-planetary' option to `gears', to draw a
496 different kind of gear system.
497 * Made motion and rotation be smoother in `gears',
498 `glplanet', `moebius', `rubik', and `sierpinski3d'.
499 * Improved coloration in `sierpinski3d'.
500 * Made the GL hacks react to window size changes.
501 * Made most of the GL hacks take a -fps option (like
502 `pulsar' did), so you can use them to benchmark your
504 * Fixed the previous fix to `sonar'.
505 * Minor fix to `nerverot'.
506 Made sonar able to ping hosts on DEC OSF1.
507 * Eliminated a bogus "didn't get enough colors" warning
508 in some of the hacks.
509 Changes since 3.27: * New logo for xscreensaver!
510 * New hacks, `starwars' and `stonerview'.
511 * Made the motion of the bouncing ball in `stairs' be a
513 * Made newly-added screenhacks be added to .xscreensaver
514 automatically: if there are hacks in the app-defaults
515 file that are not also in ~/.xscreensaver, they will
516 be added to the end of the list.
517 * Redid the `Screensaver Options' part of the control
518 panel; xscreensaver now lets you configure your DPMS
520 * Fixed some Makefile problems with non-GL builds.
521 * Fixed detection of MesaGL for version 3.3.
522 * Better workaround to Red Hat 7.0's broken gcc.
523 * Added Sparc Solaris kernel panic to `bsod'.
524 Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
525 * Fixed a free-memory-reference bug in `sonar'.
526 * Better error handling when there are no suitable GL
528 * Added diagnostic dialog when xscreensaver-demo is
529 unable to launch xscreensaver (e.g., when running as
531 * Fixed a bug that caused screenhack argument changes
532 to be ignored when xscreensaver-demo was running as
533 root (if "root" and "nobody" have different home
535 * Made the programs default to ":0" if $DISPLAY is unset.
536 * Made the `-verbose' output include information about
537 which server extensions were supported at compile time.
538 * Worked around Red Hat 7.0's broken gcc 2.96.
539 * Updated default delays on the GL hacks to look better
540 on machines with super-fast 3D hardware.
541 * Install `screensaver-properties-capplet' to work around
542 the usual egregious GNOME lossage.
543 Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
544 xscreensaver-demo (Gtk version only.)
545 * New hacks `hyperball', `xrayswarm', and `gflux'.
546 * New versions of `nerverot', `galaxy', and `hypercube'.
547 * Small fixes to `phosphor', `shadebobs', `xflame',
549 * Added external helper program `xscreensaver-gl-helper'
550 to figure out which X visual to use for OpenGL
552 * Configure updates for XFree86 4.0, and for BSD.
553 * Made it be more tolerant of bogus /etc/group files.
554 * When installing the PAM config file, first try to just
555 copy an existing "xdm" or "login" config file, so that
556 xscreensaver does authentication in the same way as the
558 Changes since 3.24: * New hack, `nerverot'.
559 * Added BSD kernel panic to `bsod'.
560 * New version of `shadebobs'.
561 * New version of `petri'.
562 * Updated `webcollage' to handle recent Altavista URL
563 format changes; made it search the AP photo gallery.
564 * Revamped command-line options of `sonar' and made it
565 properly handle subnets.
566 * The `bubbles' hack can now trickle up or down the
568 * The `xsublim' hack can now read its text from programs.
569 * Support for GLE version 3 in `extrusion'.
570 * Fixed compilation problems in `maze'.
571 * Fixed a rare crash in `flow'.
572 * Fixes for minor installation problems.
573 Changes since 3.23: * Added `-ignorant' option to `maze' hack.
574 * Updates to `critical', `bsod', `xflame', and `flow'.
575 * Added support for Kerberos 5 (via its Kerberos 4
576 compatibility layer.)
577 * Fixed a bad leak in `xteevee'.
578 * Updated `webcollage' to handle recent Altavista URL
580 * Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
581 since they were confusing people: all changes are now
583 * Made xscreensaver-demo install itself into the Gnome
585 Changes since 3.22: * Fixed some misplaced text fields in the Motif version
586 of xscreensaver-demo; fixed a crash in the Gtk version
587 that would happen if the programs list was empty.
588 * Fixed a recently-introduced bug in `pulsar'.
589 * Made `sierpinski3d' use solid tetrahedrons instead of
591 * Added `-trace' option to `xmatrix'.
592 * Added new hacks `xteevee' and `xspirograph'.
593 Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
594 * Rewrote the Motif version of xscreensaver-demo to
595 match the new Gtk version.
596 * The Athena toolkit is no longer supported.
597 Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
598 * Fixed a few visual selection bugs. I think the proper
599 GL visual should be used with nVidia systems now.
600 * Made the Makefiles obey $install_prefix.
601 * Made the `xscreensaver.spec' file able to generate both
602 GL and non-GL packages simultaneously.
603 Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
604 * Made `xscreensaver-command -exit' be silent when no
605 screen saver was running (instead of complaining.)
606 * Made `webcollage' and `vidwhacker' use `xloadimage'
607 when available (in addition to `xli' and `xv'.)
608 * Improved memory usage in `petri' and gave it a hard
609 cap on how much memory it can allocate.
610 * Added `-watch' option to `xscreensaver-command'.
611 * Made `xscreensaver-demo' come up with the
612 most-recently-run hack selected by default.
613 * Rewrote the Gtk version of `xscreensaver-demo'.
614 It's a lot easier to use now.
615 * Extended the format of the programs list in the
616 .xscreensaver file, for the benefit of the new
617 capabilities of `xscreensaver-demo'.
618 NOTE: you might want to delete your ~/.xscreensaver
619 file and allow it to be re-created! The old one
620 should still work, but xscreensaver-demo won't be as
622 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
623 * New hack, `extrusion'.
624 * Some of the web sites that `webcollage' was using as
625 its sources changed formats; tweaked it to understand
627 * Added typeahead in the password dialog: if the screen
628 is locked, and you unlock it by typing a character,
629 that key will be automatically inserted in the
630 password dialog (unless it is Return, Enter, Space,
631 or a non-printing key like Shift.)
632 * Made `xmatrix' take a `-small' option, since some
633 folks with tiny screens prefer a smaller font.
634 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
635 * Added `ccurve', `blaster', and `bumps' hacks.
636 * Replaced `forest' hack with a rewritten version.
637 * Worked around a Xinerama server bug.
638 * Fixed a bug I introduced in 3.10 that caused some
639 hacks to print out superfluous warnings about not
640 having gotten enough colors.
641 * Made `sproingies' obey the `-delay' option.
642 * Fixed a portability bug in `shadebobs'.
643 * Made `webcollage' and `vidwhacker' use `xli' in
644 preference to `xv', if it is available.
645 * Added a new source of images to `webcollage'.
646 * If running under KDE, xscreensaver will add itself to
647 KDE's list of screensavers (via xscreensaver.kss.)
648 * Improved detection of GL libraries.
649 * Made the password dialog include the date and time.
650 Changes since 3.16: * New version of `webcollage' -- deals better with
651 corrupted images, and can use an http proxy.
652 * New hack, `xsublim' (run it in the background,
653 rather than adding it to the programs list.)
654 * The xscreensaver daemon was leaking a file descriptor
655 each time you edited your .xscreensaver file. Fixed.
656 Changes since 3.15: * New version of `shadebobs'.
657 * Improved image selection in `webcollage', and sped it
659 * Made configure find the right version of perl.
660 * Rewrote the CGI part of `webcollage'.
661 * `make clean' was deleting some things it shouldn't.
662 * Fixed a typo in the default programs list.
663 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
664 * Added a `-stdout' arg to `vidwhacker' so that it can
665 be used in a pipeline.
666 * Made `petri' use less memory.
667 Changes since 3.13: * Various improvements to the Gtk port.
668 * Turned off PAM by default on Solaris, since PAM seems
669 generally to be misconfigured out-of-the-box.
670 * Made the `--without-gtk' configure option work.
671 * Made configure check the Gtk version number, since it
673 * Fixed a bug in the code that attempted to prevent
674 changes of screen resolution while the screen is
676 * Fixed a race condition in `xscreensaver-demo' that
677 could cause an X error at startup.
678 * Added `-transparent' option to `deluxe'.
679 * Added `petri' hack.
680 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
681 * Made it possible to build Motif, Gtk, and Athena
682 versions of `xscreensaver-demo' in the same directory
683 without reconfiguring.
684 * Made `xscreensaver-demo' chase symlinks before writing
685 the .xscreensaver file, so that if .xscreensaver is
686 itself a symlink, the underlying file will be replaced
688 * Some Makefile and configure tweaks for Solaris and
690 * Made it possible to set the fire color in `xflame'.
691 * Made transparency work in TrueColor (for `goop' and
693 * Fixed a multi-head bug introduced by the virtual
695 Changes since 3.11: * Made it so that you can't scroll the screen while the
696 lock dialog is up (with XFree86 virtual viewports.)
697 * Fixed a bug in `flag' that caused bob's chin to get cut
698 off after a few iterations.
699 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
700 less like a computer screen and more like the
701 typewritten paper it's supposed to be.
702 * New version of `pulsar'.
703 * Fixed Solaris compilation problem in `phosphor'.
704 * Made xscreensaver notice XFree86's virtual root window
705 hack, so that if the X server's root window is larger
706 than the monitor's displayable resolution, the screen
707 saver will limit itself to the area that actually
708 appears on the screen.
709 * Made the xscreensaver daemon do a better job of
710 picking the visual class that should be used for GL
711 programs. Less user intervention should be needed
712 now: you can use the logical visual name `GL' instead
713 of having to figure out by hand which one to use.
714 * Oops, the visual was defaulting to "best" instead of
715 "default", because the .xscreensaver file was not being
716 loaded quite early enough.
717 * Made configure figure out how to build icmp ping
718 support into the `sonar' hack automatically.
719 * Made warnings about not being able to read shadow
720 passwords not be printed if compiled with PAM support.
721 * Improved PAM startup diagnostics.
722 * Worked around the Solaris PAM bug that was causing
723 crashes there, so now PAM is turned on by default.
724 * Made configure detect the number of arguments that
725 pam_strerror() takes, since on Linux, this apparently
726 changed between 2.0 and 2.2, sigh.
727 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
728 as well as "keyboard".
729 * Made xscreensaver notice when there has been a sudden
730 large jump in wall-clock time, and if so, lock right
731 away, instead of waiting for "lockTimeout" to expire
732 first. (Laptops need this for safer recovery from
734 * Added `-throttle' option to `xscreensaver-command'.
735 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
736 * Fixed a bug in the color allocator that sometimes
737 caused `starfish' to fall back to monochrome.
738 * Reduced the amount of code that runs before root
739 privileges are disavowed: "normal" and "shadow"
740 passwords now do some initialization as root, but the
741 PAM and Kerberos authorization schemes will be
742 initialized while running as "nobody". Supposedly
743 this closes a potential security hole when using
745 * Added some more sanity checking to configure.
746 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
747 `spotlight', and `critical' hacks.
748 * Added some new modes to `decayscreen'.
749 * Made `deluxe' work in monochrome.
750 * Generalized usage of the Double-Buffer server extension
751 in several hacks (`compass', `deluxe', `interference',
752 `kumppa', and `moire2'.)
753 * Fixed another visual-depth problem in `rd-bomb'.
754 * The screen saver will now defer blanking if neither
755 the keyboard nor the mouse could be grabbed. Instead,
756 it will just try again in a few minutes. This fixes
757 a bad interaction between xscreensaver and programs
758 like VMware that hold the mouse and keyboard grabbed
760 * Added a new erase mode (expanding spiral.)
761 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
762 * Added `penetrate' and `deluxe' hacks.
763 * When linking against Motif 2.x, also link against XPM.
764 * Added support for using /proc/interrupts for idle
765 detection on Linux. Now xscreensaver shouldn't kick
766 in when the user is active on a non-X virtual console.
767 * Upgraded to autoconf 2.13.
768 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
769 in properly; check for _Xsetlocale in -lXintl.)
770 * Portability fixes for sonar.c.
771 * Fixed a compilation problem when you have GL but don't
773 * Made configure notice when MesaGL requires -lpthread.
774 * Made `flame' ignore SIGFPE (not sure if this is the
775 right fix; it seems only to be needed on FreeBSD.)
776 * Kludged `rd-bomb' work on visuals that are of depth 24
777 but that *do not* support pixmaps of depth 32.
778 * Fixed `halo' to work properly in TrueColor.
779 * Changed `xscreensaver.spec' to install the hacks in
780 /usr/X11R6/lib/xscreensaver/ by default, since that's
781 where recent Red Hat distributions put them.
783 * Updated versions of `crystal', `hopalong', and `flow'
785 * Imported `demon' and `loop' modes from xlockmore.
786 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
787 it was always installing a colormap if the
788 `installColormap' preference was set, meaning that
789 `xearth', `xv' and friends were using the wrong
790 colors on 8-bit systems.
791 * Turned off HAVE_PING in `sonar', since it compiles
792 on some Linux systems, but not others of similar
794 Changes since 3.04: * Fixed an off-by-1 in `distort'.
795 * Added `sonar' hack.
796 * New version of `glplanet' (with stars.)
797 * Made all hacks exit when you type `q' or `ESC' at them,
798 and made them obey the WM_DELETE_WINDOW ClientMessage.
799 * Fixed a nonfatal buffer overrun in lament (note:
800 lament still doesn't work with MesaGL 3.0: it dies in
801 lambda_textured_triangle1(), which is Mesa's bug, not
803 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
804 for other folks to generate RPMs.
805 * Made the password code work on HPUX in the situation
806 where: ``enhanced security'' is available; but not
807 used; but the user typed a password more than 8
808 characters long anyway. FTSOHPUX.
809 Changes since 3.02: * Made locking work when passwd aging is enabled.
810 * Added support for PAM (Pluggable Authentication
811 Modules.) It is still turned off by default, though,
812 since it doesn't seem to work on Solaris 2.6, and has
813 been behaving erratically on Red Hat 5.1.
814 * Made each possible authentication method be tried in
815 turn until one succeeds; this means that Kerberos is
816 being used, we will first check Kerberos, and if that
817 fails, will then consult the local password file.
819 * Save and restore the bits under the passwd dialog,
820 to avoid leaving a black rectangle behind when
821 unlocking is cancelled.
822 Changes since 3.01: * Not everyone has sys/select.h, sigh...
823 Changes since 3.00: * Some fixes to `reflect'.
825 * Made it log unsuccessful attempts to unlock the screen
827 * Fixed a bug where `xscreensaver-demo' could be seeing
828 a different programs list than `xscreensaver' did.
829 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
830 or Athena: demo-mode and the preferences panel are no
831 longer built in to the daemon, but are now handled by
832 an external program, `xscreensaver-demo'.
833 (I decided that this, along with the recent addition
834 of the `.xscreensaver' config file, justified bumping
835 the version number to 3.00, since this is a fairly
836 major architectural change.)
837 * Lines in the `*programs' resource may now begin with
838 the character "-", meaning "don't run this hack."
839 In this way, it's possible to disable a hack without
840 throwing away the information about it (making it
841 easier to change your mind later.) Eventually the
842 preferences/demo mode GUI should represent this as a
843 checkbox or something.
844 * Fixed a short race condition where it was possible for
845 xscreensaver to die with a BadWindow error if it was
846 blanking the screen just as another window was being
848 * Made it possible to disable specific modes in `bsod'.
849 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
850 many valves. Made the viewpoint in `pipes' be selected
851 randomly instead of always being -10 degrees.
852 * Fixed a bug in the XSHM code, in the case where the
853 server supports the XSHM extension but is not the same
854 machine as the client.
855 * Made `rd-bomb' default to taking up the whole screen.
856 * Made it not try to do fading/unfading if no PseudoColor
858 * Initial attempt at supporting VT-locking (doesn't work
860 * Eliminated the `captureStdout' resource; now
861 `captureStderr' controls both streams.
862 * Added `-capture-stderr' and `-no-capture-stderr'
863 command-line arguments.
864 * Added `glplanet' hack.
865 * When a hack is selected with `xscreensaver-command
866 -select', that hack will be used until further notice
867 (until the saver turns off, or another activation
869 Changes since 2.32: * Made `xscreensaver-command' print error messages:
870 the xscreensaver daemon now responds to ClientMessage
871 events by writing a response message on a window
872 property, instead of just writing to its stderr.
873 * Made the ~/.xscreensaver file be automatically reloaded
874 when the file date changes.
875 * The password dialog and splash screen no longer depend
876 on Motif or Athena. This should clear up a number of
877 focus problems, and is the first step on the path
878 toward moving all of the Motif/Athena/whatever code
879 out of the xscreensaver daemon, and into external
881 * Don't complain about LessTif 0.86 any more, since the
882 new password dialog makes that problem go away.
883 * Configure tweaks for Irix 6.5, SunOS 5.something.
884 * New `-reflect' option to `distort'.
885 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
886 so that the Preferences panel can save its settings.
887 * New version of `rubik'.
888 * Added `-select N' argument to `xscreensaver-command'.
889 * Oops, left out some of the `bubbles3d' files...
890 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
891 * Made configure warn against MesaGL 2.6.
892 * Fixed X error at startup when using non-default visual.
893 * New version of `crystal', `ant', and `atlantis' from
895 * New hack, `bubble3d'.
896 * Added some new modes to `bsod'.
897 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
898 to be after Motif instead of before (Lesstif on Irix
900 Changes since 2.28: * Work around a bash bug in configure.
901 * Tweaked HPUX paths again. FTSOHPUX.
902 * Made configure recommend against LessTif 0.86, due
903 to a bug in that version that causes a security hole
904 in the screen locking code. LessTif 0.87 will fix it.
905 * Made all of the `--with' options to `configure' accept
906 a directory option as well (so that --with-motif=/FOO
907 will add -I/FOO/include -L/FOO/lib). I believe this is
908 the Configure Party Line of how do to such things.
909 * Fixed a bug where the mouse was left un-grabbed
910 after the first time the graphics hack was changed
911 (simplified all of the mouse-grabbing logic.)
912 * Maybe possibly perhaps made `vidwhacker' really not
913 leave stray xv windows around. This time for sure.
914 * Added a new erase mode (random dots fizzling out.)
915 * Added `-prefs' argument to `xscreensaver-command',
916 that brings up the Preferences dialog directly (it
917 seems that nobody ever noticed the `Preferences' button
918 on the Demo Mode dialog, maybe this will help.)
919 * Added a splash screen. Turn it off with *splash:false.
920 Changes since 2.27: * Better macsbug text in `bsod'.
921 * New version of `distort' with many new modes.
922 * Plugged a leak in `coral'.
923 * Tweaked configure for HPUX.
924 * Removed some compiler warnings.
925 * More consistent usage of stderr versus stdout.
926 * More diagnostics should an X error occur.
927 * Fixed a possible crash in SGI-specific unfading code.
928 Changes since 2.26: * Improved version of `distort'.
929 * Made `lament' compile against OpenGL 1.0 (though it
930 still requires 1.1 to work properly.)
931 * Updated my email address and home page.
932 Changes since 2.24: * Improved motion in `rd-bomb'.
933 * Added XSHM (shared memory extension) support to the
934 `distort', `interference', `moire', `rd-bomb', and
935 `swirl' hacks, which speeds them up a bit.
936 * Added `lament' hack.
937 Changes since 2.23: * Tweaked the order of the -L options again.
938 * Cleaned up configure's `--help' message.
939 * Added `kumppa' hack.
940 * Smarter maze-solving algorithm in `maze'.
941 * Took `xlyap' out of the default list of hacks, since
942 it's just incredibly buggy (and slow.) Maybe someday
943 someone will fix it...
944 * Added `distort' hack, but didn't add it to the default
945 list (yet) because it's still too slow.
946 * Made the Athena demo dialog look more like the Motif
947 version; it has a text-entry field now, too.
948 * Made the Athena password dialog echo asterisks, like
949 Motif does, instead of using a flyspeck font.
950 * Some random configure tweaks.
951 * Added a `timestamp' resource that makes the `-verbose'
952 messages include the time at which they were printed.
953 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
954 let the user's "*background" resource show through.
955 Fixed it in a different way.
956 Changes since 2.21: * Added support for the DPMS server extension (Display
957 Power Management System.)
958 * Made configure advertize the `--enable-subdir' option a
959 little more, since that seemed to cause some people
960 stress. Also, made that directory be built into the
961 xscreensaver executable, as a hardcoded prefix to
962 $PATH. (Might help, shouldn't hurt.)
963 * Made configure prefer the two-arg gettimeofday to the
964 one-arg version, since AIX doesn't have any prototypes.
965 * Made it work with Xaw3d (the 3D Athena library.)
966 * Made `make install' create directories as necessary.
967 * New version of lmorph from Sverre.
968 * Added `crystal' and `discreet' hacks from xlockmore.
969 * Added a new mode to `bsod'.
970 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
971 (It now describes the two states as "screen blanked
972 since..." and "screen non-blanked since..." instead of
973 "active since..." and "inactive since..." which a lot
974 of people interpreted as meaning the opposite of what
976 * Improved some error messages, in the hopes of making
977 the distinction between the xscreensaver and
978 xscreensaver-command programs more obvious.
979 * Rewrote (and reorganized) parts of the xscreensaver and
980 xscreensaver-command manual pages.
981 * Renamed xscreensaver's `-lock' command-line option to
982 be `-lock-mode', to avoid confusion with the `-lock'
983 option to xscreensaver-command, which does a totally
985 * Removed xscreensaver's `-demo' command-line option for
986 a similar reason; use `xscreensaver-command -demo'
988 * Disabled SGI's ``scheme'' nonsense in a better way than
989 fully-qualifying the background colors in every single
991 * Fixed some other minor cosmetic problems when *sgiMode
993 * Fixed an X error in `bsod -root' (how ironic...)
994 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
995 grabbed properly (meaning the window manager menu could
996 pop up over the demo-mode display.)
997 * Fixed a bug that made the stderr output sometimes get
999 * Fixed a bug that made the demo-mode scrollbar move too
1001 * Protected against a possible buffer overflow.
1002 * Made `vidwhacker' not leave stray xv windows around.
1003 * New version of `ant' so that Bagley doesn't calve.
1004 * Make configure on AIX get XShm from the right library.
1005 Changes since 2.18: * One file was missing from the tar file. Fixed.
1006 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
1007 * Added `epicycle' hack.
1008 * Added `interference' hack.
1009 * Added `truchet' hack.
1010 * Added `bsod' hack.
1011 * Added some new modes to `vidwhacker'.
1012 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
1013 can draw on arbitrary externally-provided windows.
1014 * Synched with xlockmore 4.11a01.
1015 * Added `flow' hack.
1016 * Added `atlantis' GL hack.
1017 * Renamed `puzzle' hack to `jigsaw', since xlock already
1018 had a different mode called `puzzle'.
1019 * Made it self-configure properly when Motif 2.1.0 is
1020 being used (requires -lXp now, sigh...)
1021 Changes since 2.15: * Made `flag' able to do XPM images.
1022 * New look for the xscreensaver logo (`xroger').
1023 * Fixed compilation error on Suns with adjunct passwords.
1024 * Got multi-architecture builds working again.
1025 * Some configure tweaks for building on HPUX and Solaris.
1026 * Fixed bug in decayscreen.
1027 * Fixed typo in passwd.c.
1028 * Made `cynosure' not die when colormap is full.
1029 Changes since 2.14: * Added `cynosure' hack.
1030 * Added `moire2' hack.
1031 * Tweaked `erase.c' some more.
1032 * Made unfading a bit smoother.
1033 * Added `vidwhacker' hack (not installed by default.)
1034 * Added `stairs' hack.
1035 * Split `escher' into `cage' and `moebius', as per
1037 * Changed subprocess handling to use sigaction() instead
1038 of signal() if it's available (this is necessary for
1039 SCO but should work fine on other systems too.)
1040 * Various other tweaks.
1041 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
1042 * Put in some kludges to work around a LessTif bug.
1043 * XScreenSaver is known to work with LessTif 0.82 now.
1044 * Made fading work on high-end SGI video hardware.
1045 * Fixed another SGI-specific bug in screen grabbing;
1046 will the madness never cease?
1047 * Fixed another crash in `xlyap'.
1048 Changes since 2.12: * Made `decayscreen' do directions other than down.
1049 * Improved `puzzle'.
1050 * Fixed a crash in `xlyap'.
1051 * Added CDE info to the man page, removed `cde.txt'.
1052 * Configure tweaks for Zippy.
1053 * Turned off the signal handling in `bubbles' because
1054 it was sometimes failing to die.
1055 * Added `hacks/xscreensaver-sgigl.c' to make it possible
1056 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
1057 with xscreensaver. Finally!
1058 * Fixed a buffer overrun in the locking code that some
1059 wily, malicious cracker must have slipped in.
1060 * Disabled Motif drag-and-drool in the dialog box
1061 buttons, since it's broken in some old versions of
1063 Changes since 2.11: * Added `README.debugging'.
1064 * Added `puzzle' hack.
1065 * Added `xlyap' hack.
1066 * Added `default-n' as a visual name, so that one can
1067 have -install on by default, but turn it off for
1068 certain poorly-behaved hacks (like xv.)
1069 * Added support for grabbing frames of external video
1070 (on SGI) to the screen-grabbing hacks (decayscreen,
1071 slidescreen, slip, blitspin, and puzzle.)
1072 * Improved look of tiles in `slidescreen'; fixed its
1073 color allocation problem.
1074 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
1075 * Added `lissie', `mountain', `triangle', `worm',
1076 `rotor', and `ant' from xlockmore.
1077 * Updated `sierpinski', `galaxy', and `lisa'.
1078 * Thickened the lines in `braid' and `lmorph'.
1079 * Updated VMS makefiles.
1080 * Renamed `fract' to `vines'.
1081 * Added `xjack' hack.
1082 * Made a few more hacks use erase.c, and added a few
1084 * Fixed compilation problem with Sun's version of OpenGL.
1085 * Added ability to use sigaction() instead of signal()
1086 to work around a SCO kernel bug.
1087 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
1088 * Configure tweaks for *BSD.
1089 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
1090 * New version of `maze' with some new algorithms.
1091 * New colorized version of `rocks'.
1092 * Fixed a bug in qix on 64-bit machines.
1093 * Fixed a bug in the -time option.
1094 * Fixed a bug in configure related to LessTif.
1095 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
1096 * Made multi-architecture ($VPATH) builds work properly.
1097 * Merged new GL stuff from xlockmore (rubik, morph3d.)
1098 * Fixed intermittent crashes in `imsmap' and `munch'.
1099 * Added `fadeplot' hack from xlockmore.
1100 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
1101 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
1102 configure to detect the extra-random -Xss library.
1103 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
1104 * Fixed low-color behavior of `goop', `pyro', `starfish',
1105 `greynetic', `flame', `halo', and `moire'.
1106 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
1107 * Added `munch' hack.
1108 * Added basic dependencies to the Makefile.in files.
1109 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
1110 * Made the yow/fortune program be a configure option.
1111 * Various configure tweaks.
1112 Changes since 2.00: * Added `goop' and `starfish' hacks.
1113 * Added colomap cycling to `halo'.
1114 * Made `attraction' use the new colormap allocator.
1115 * Added better $PATH diagnostics.
1116 * There was a bug in frand! Color selection should be
1118 Changes since 1.34: * Converted to use `configure' instead of `imake'.
1119 * ANSI C is now required.
1120 * Added Kerberos locking support, from Nat Lanza.
1121 * Made the stderr text use overlay planes, if possible.
1122 * Reworked the xlockmore compatibility stuff again.
1123 * Added `gears', `superquadrics', `escher', `pipes',
1124 and `sproingies' hacks (depend on OpenGL.)
1125 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
1126 Changes since 1.32: * Made it work with multi-headed displays.
1127 * Generalized sub-process management (Unix sucks!)
1128 * Added interactive mouse frobbing to Julia.
1129 * Added (untested) support for HPUX shadow passwords.
1130 * Made normal non-shadow passwords be checked if the
1131 shadow passwords aren't accessible for some reason.
1132 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
1133 made it possible to specify the desired visual on a
1135 * Cleaned up / restructured the driver: no more globals.
1136 * Made the Motif and Athena dialogs share more code.
1137 * Probably fixed some Athena colormap-installation bugs.
1138 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
1139 * Fixed divide-by-zero in bright random colormaps.
1140 * Added an improved version of xlock's `flag' hack.
1141 * Made unfading work better, and not flicker on SGIs.
1142 * Added `sphere', `forest', `lisa' hacks from xlockmore.
1143 * Added (untested) support for SunOS Adjunct passwords.
1144 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
1145 * Cleaned up xlockmore compatibility layer.
1146 * Made `blitspin' able to grab an image off the screen.
1147 * Ported `swirl' and `bouboule' hacks from xlockmore.
1148 * Made the driver more careful about not leaving bits on
1149 the screen, or allowing other windows to raise
1150 themselves: it now re-blanks the screen every so often.
1151 * Added `-time' option to `xscreensaver-command'.
1152 * Improved SGI screen-grabbing some more: now it can grab
1153 TrueColor screens into PseudoColor windows and have the
1154 colors still come out semi-reasonably.
1155 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
1156 SGIs when windows of different visuals are present, by
1157 using the XReadDisplay() extension to get a true 24-bit
1158 image out of the frame buffer.
1159 * Made `noseguy' be in color, if compiled with XPM.
1160 * Ported `braid', `drift', `fract', `galaxy', `grav',
1161 `ifs', `julia', `laser', `lightning', `penrose',
1162 `sierpinski', `slip', `spiral', and `strange' hacks
1164 * Merged `hopalong' hack with a more recent version.
1166 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
1167 * Merged in support for non-Motif locking and demo mode.
1168 * Made `blitspin' and `bubbles' work in TrueColor.
1169 * Fixed a stupid bug I introduced in `imsmap'.
1170 * Added `poly' and `gravity' options to `qix'.
1171 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
1172 * Made `fade' and `unfade' work on 8-bit SGIs.
1173 * Made the dialog boxes more Motify.
1174 * Added `bubbles' hack.
1175 Changes since 1.25: * Added `lmorph' hack.
1176 * Added viscosity and mouse-control to attraction.
1177 * Fixed possible bad color choices in qix and attraction.
1178 * Added ramp-mode to halo.
1179 * Added a new RNG, which is faster and more portable
1180 than using the RNG in libc.
1181 * Made locking work on SCO.
1182 * Various other minor tweaks that I don't remember.
1183 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
1184 and present them on the screensaver window itself.
1185 * Made demo mode work correctly with non-default visuals
1186 and color maps, instead of always using the defaults.
1187 * Added -visual argument to all included screenhacks.
1188 * Support for the R6 MIT-SCREEN-SAVER server extension.
1189 * Made the demo mode list scroll properly.
1190 * Added `pedal' hack.
1191 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
1192 decayscreen, and xroger. Fixed apparent conservation-
1193 of-mass problem in pyro; made the shrapnel round.
1194 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
1195 Changes since 1.21: * Minor tweaks for X11R6.
1196 * Fixes for non-default visuals.
1197 Changes since 1.20: * Fixed bug in color blitspin; added default image.
1198 * Added diagnostics to noseguy. Fixed off-by-one
1199 error in flame. Added some missing casts.
1200 Changes since 1.18: * Added `flame' hack.
1201 * Fixed a minor Motif dialog text field bug.
1202 * Fixed yet another XPointer-not-defined-in-R4 bug.
1203 Changes since 1.17: * Added support for shadow password files.
1204 * Fixed some Motif-related locking bugs.
1205 * Added diagnostics when locking is disabled.
1206 * Made blitspin able to use the XPM library.
1207 * Added `decayscreen' hack.
1208 Changes since 1.16: * Added `halo' hack.
1209 Changes since 1.15: * Portability fixes.
1210 Changes since 1.14: * Broke the driver up into more source files.
1211 * Moved the hacks into their own directory.
1212 * Made all `time' parameters accept the 00:00:00 syntax,
1213 so that even the parameters which are normally read as
1214 minutes can be specified in seconds.
1215 * Added colormap cycling to `imsmap'.
1216 * Made hyper work with K&R compilers.
1217 Changes since 1.13: * Added `orbit' option to `attraction' hack.
1218 * Added `lock-timeout' option.
1219 * Cleaned up options of `maze' hack.
1220 Changes since 1.8: * Added demo mode, and locking.
1221 * Added `maze' hack.
1222 * Added `norotate' option to `rocks' hack.
1223 Changes since 1.4: * Works when run from XDM before anyone logs in.
1225 * Can use `xv' as a slideshow without using up colormap
1226 entries while the screen is not blanked.
1227 * Fixed a BadDrawable error in non-XIdle mode.
1228 * Added `blitspin' and `imsmap'.
1229 Changes since 1.0: * Current list of included hacks is now: qix, helix,
1230 rorschach, attraction, greynetic, rocks, pyro,
1231 hopalong, and noseguy.
projects / xscreensaver / blob