XScreenSaver
a screen saver and locker for the X window system
by Jamie Zawinski
http://www.jwz.org/xscreensaver/
To build on Unix:
- ./configure
- make
- make install
The `configure' shell script will attempt to figure out which options are
appropriate for your system, and will create config.h and the various
Makefiles for you. Run `configure --help' to see how to override these
choices, or to specify things like the default installation directory.
The file `INSTALL' gives a general overview of use of these sorts of
configure scripts (those generated by the GNU autoconf system.)
The most important hint is probably this:
./configure --with-motif=/opt/Motif --with-xpm=/usr/local
To build on VMS, see README.VMS.
If you are upgrading from version 2.* to version 3.*, be sure to delete
your ~/.xscreensaver file first, if you have one.
If you think you've found a bug, please let me know! No bug report is too
small. But first, please read the enclosed `README.debugging' file to find
out what kind of information would be most helpful to include in your bug
report.
Getting Started:
You can try out xscreensaver like so:
xscreensaver &
xscreensaver-demo
Note: unlike `xlock', xscreensaver has a client-server model: the
`xscreensaver' process is a daemon that runs in the background; it is
controlled by the foreground `xscreensaver-demo' program.
xscreensaver has an extensive manual -- please read it!
============
The xscreensaver daemon waits until the keyboard and mouse have been idle
for a period, and then runs a graphics demo chosen at random. The demo is
terminated as soon as there is any mouse or keyboard activity (or, in
locking mode, when the proper password is typed.)
It is trivially easy to add new display modes to xscreensaver: any program
which can be invoked in such a way that it draws on the root window of the
screen can be used as a screensaver. You just change a config file --
there's no need to recompile or reinstall anything.
============
Along with the xscreensaver daemon itself, this package also includes
numerous graphics hacks for use as screensavers. There is nothing magic
about these: they are just programs that draw on the root window.
More than 120 such programs are included. For details, see the xscreensaver
web page, or the enclosed manual pages.
The latest version of xscreensaver is always available on the web at
http://www.jwz.org/xscreensaver/.
============
Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
now operate on randomly chosen image files from disk,
or on frames captured from the system's video input,
instead of (or in addition to) manipulating images of
the desktop.
* Rewrote `vidwhacker' to use the new image-grabbing
mechanism.
* Made fading work on TrueColor XFree86 4.x systems.
* Fixed a subtle rendering bug in `atlantis' (the fish
were inside out!)
* Made `atlantis' have a texture simulating light
reflections from the surface of the ocean.
* Fixed up label placement in `molecule'.
* Better color bars in `xteevee'.
* Made `install-strip' not try to strip scripts.
Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
the documentation to reflect the fact that all your
DPMS settings are now belong to xscreensaver.
* Fixed the `xscreensaver.spec' file so that `--force'
is no longer needed.
* New versions of `rotzoomer' and `nerverot'.
* Fixed an OSF/1 compilation problem in `molecule'.
Changes since 3.29: * New hacks, `molecule' `dangerball', and `rotzoomer'.
* New version of `gflux'.
* Made `gltext' able to display the current time.
* Fixed a floating-point-precision problem in `gltext'
that sometimes caused horizontal lines to vanish.
* Removed the `-window-id' option from the hacks:
it never worked right, and was unnecessary.
* Made the `starwars' hack use thicker lines, antialias
the text, and fade out at the far edge instead of just
dropping off.
* Fixed an SHM segment leak in `moire'.
Changes since 3.28: * Better rendering of the new logo.
* New hack, `gltext'.
* Added `-planetary' option to `gears', to draw a
different kind of gear system.
* Made motion and rotation be smoother in `gears',
`glplanet', `moebius', `rubik', and `sierpinski3d'.
* Improved coloration in `sierpinski3d'.
* Made the GL hacks react to window size changes.
* Made most of the GL hacks take a -fps option (like
`pulsar' did), so you can use them to benchmark your
3D hardware.
* Fixed the previous fix to `sonar'.
* Minor fix to `nerverot'.
Made sonar able to ping hosts on DEC OSF1.
* Eliminated a bogus "didn't get enough colors" warning
in some of the hacks.
Changes since 3.27: * New logo for xscreensaver!
* New hacks, `starwars' and `stonerview'.
* Made the motion of the bouncing ball in `stairs' be a
little less jerky.
* Made newly-added screenhacks be added to .xscreensaver
automatically: if there are hacks in the app-defaults
file that are not also in ~/.xscreensaver, they will
be added to the end of the list.
* Redid the `Screensaver Options' part of the control
panel; xscreensaver now lets you configure your DPMS
settings.
* Fixed some Makefile problems with non-GL builds.
* Fixed detection of MesaGL for version 3.3.
* Better workaround to Red Hat 7.0's broken gcc.
* Added Sparc Solaris kernel panic to `bsod'.
Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
* Fixed a free-memory-reference bug in `sonar'.
* Better error handling when there are no suitable GL
visuals.
* Added diagnostic dialog when xscreensaver-demo is
unable to launch xscreensaver (e.g., when running as
root.)
* Fixed a bug that caused screenhack argument changes
to be ignored when xscreensaver-demo was running as
root (if "root" and "nobody" have different home
directories.)
* Made the programs default to ":0" if $DISPLAY is unset.
* Made the `-verbose' output include information about
which server extensions were supported at compile time.
* Worked around Red Hat 7.0's broken gcc 2.96.
* Updated default delays on the GL hacks to look better
on machines with super-fast 3D hardware.
* Install `screensaver-properties-capplet' to work around
the usual egregious GNOME lossage.
Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
xscreensaver-demo (Gtk version only.)
* New hacks `hyperball', `xrayswarm', and `gflux'.
* New versions of `nerverot', `galaxy', and `hypercube'.
* Small fixes to `phosphor', `shadebobs', `xflame',
and `sonar'.
* Added external helper program `xscreensaver-gl-helper'
to figure out which X visual to use for OpenGL
programs.
* Configure updates for XFree86 4.0, and for BSD.
* Made it be more tolerant of bogus /etc/group files.
* When installing the PAM config file, first try to just
copy an existing "xdm" or "login" config file, so that
xscreensaver does authentication in the same way as the
rest of the system.
Changes since 3.24: * New hack, `nerverot'.
* Added BSD kernel panic to `bsod'.
* New version of `shadebobs'.
* New version of `petri'.
* Updated `webcollage' to handle recent Altavista URL
format changes; made it search the AP photo gallery.
* Revamped command-line options of `sonar' and made it
properly handle subnets.
* The `bubbles' hack can now trickle up or down the
screen.
* The `xsublim' hack can now read its text from programs.
* Support for GLE version 3 in `extrusion'.
* Fixed compilation problems in `maze'.
* Fixed a rare crash in `flow'.
* Fixes for minor installation problems.
Changes since 3.23: * Added `-ignorant' option to `maze' hack.
* Updates to `critical', `bsod', `xflame', and `flow'.
* Added support for Kerberos 5 (via its Kerberos 4
compatibility layer.)
* Fixed a bad leak in `xteevee'.
* Updated `webcollage' to handle recent Altavista URL
format changes.
* Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
since they were confusing people: all changes are now
instantanious.
* Made xscreensaver-demo install itself into the Gnome
Control Center.
Changes since 3.22: * Fixed some misplaced text fields in the Motif version
of xscreensaver-demo; fixed a crash in the Gtk version
that would happen if the programs list was empty.
* Fixed a recently-introduced bug in `pulsar'.
* Made `sierpinski3d' use solid tetrahedrons instead of
points.
* Added `-trace' option to `xmatrix'.
* Added new hacks `xteevee' and `xspirograph'.
Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
* Rewrote the Motif version of xscreensaver-demo to
match the new Gtk version.
* The Athena toolkit is no longer supported.
Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
* Fixed a few visual selection bugs. I think the proper
GL visual should be used with nVidia systems now.
* Made the Makefiles obey $install_prefix.
* Made the `xscreensaver.spec' file able to generate both
GL and non-GL packages simultaneously.
Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
* Made `xscreensaver-command -exit' be silent when no
screen saver was running (instead of complaining.)
* Made `webcollage' and `vidwhacker' use `xloadimage'
when available (in addition to `xli' and `xv'.)
* Improved memory usage in `petri' and gave it a hard
cap on how much memory it can allocate.
* Added `-watch' option to `xscreensaver-command'.
* Made `xscreensaver-demo' come up with the
most-recently-run hack selected by default.
* Rewrote the Gtk version of `xscreensaver-demo'.
It's a lot easier to use now.
* Extended the format of the programs list in the
.xscreensaver file, for the benefit of the new
capabilities of `xscreensaver-demo'.
NOTE: you might want to delete your ~/.xscreensaver
file and allow it to be re-created! The old one
should still work, but xscreensaver-demo won't be as
pretty.
Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
* New hack, `extrusion'.
* Some of the web sites that `webcollage' was using as
its sources changed formats; tweaked it to understand
the current layouts.
* Added typeahead in the password dialog: if the screen
is locked, and you unlock it by typing a character,
that key will be automatically inserted in the
password dialog (unless it is Return, Enter, Space,
or a non-printing key like Shift.)
* Made `xmatrix' take a `-small' option, since some
folks with tiny screens prefer a smaller font.
Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
* Added `ccurve', `blaster', and `bumps' hacks.
* Replaced `forest' hack with a rewritten version.
* Worked around a Xinerama server bug.
* Fixed a bug I introduced in 3.10 that caused some
hacks to print out superfluous warnings about not
having gotten enough colors.
* Made `sproingies' obey the `-delay' option.
* Fixed a portability bug in `shadebobs'.
* Made `webcollage' and `vidwhacker' use `xli' in
preference to `xv', if it is available.
* Added a new source of images to `webcollage'.
* If running under KDE, xscreensaver will add itself to
KDE's list of screensavers (via xscreensaver.kss.)
* Improved detection of GL libraries.
* Made the password dialog include the date and time.
Changes since 3.16: * New version of `webcollage' -- deals better with
corrupted images, and can use an http proxy.
* New hack, `xsublim' (run it in the background,
rather than adding it to the programs list.)
* The xscreensaver daemon was leaking a file descriptor
each time you edited your .xscreensaver file. Fixed.
Changes since 3.15: * New version of `shadebobs'.
* Improved image selection in `webcollage', and sped it
up slightly.
* Made configure find the right version of perl.
* Rewrote the CGI part of `webcollage'.
* `make clean' was deleting some things it shouldn't.
* Fixed a typo in the default programs list.
Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
* Added a `-stdout' arg to `vidwhacker' so that it can
be used in a pipeline.
* Made `petri' use less memory.
Changes since 3.13: * Various improvements to the Gtk port.
* Turned off PAM by default on Solaris, since PAM seems
generally to be misconfigured out-of-the-box.
* Made the `--without-gtk' configure option work.
* Made configure check the Gtk version number, since it
requires 1.2.
* Fixed a bug in the code that attempted to prevent
changes of screen resolution while the screen is
locked.
* Fixed a race condition in `xscreensaver-demo' that
could cause an X error at startup.
* Added `-transparent' option to `deluxe'.
* Added `petri' hack.
Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
* Made it possible to build Motif, Gtk, and Athena
versions of `xscreensaver-demo' in the same directory
without reconfiguring.
* Made `xscreensaver-demo' chase symlinks before writing
the .xscreensaver file, so that if .xscreensaver is
itself a symlink, the underlying file will be replaced
instead.
* Some Makefile and configure tweaks for Solaris and
FreeBSD.
* Made it possible to set the fire color in `xflame'.
* Made transparency work in TrueColor (for `goop' and
`qix'.)
* Fixed a multi-head bug introduced by the virtual
viewports stuff.
Changes since 3.11: * Made it so that you can't scroll the screen while the
lock dialog is up (with XFree86 virtual viewports.)
* Fixed a bug in `flag' that caused bob's chin to get cut
off after a few iterations.
Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
less like a computer screen and more like the
typewritten paper it's supposed to be.
* New version of `pulsar'.
* Fixed Solaris compilation problem in `phosphor'.
* Made xscreensaver notice XFree86's virtual root window
hack, so that if the X server's root window is larger
than the monitor's displayable resolution, the screen
saver will limit itself to the area that actually
appears on the screen.
* Made the xscreensaver daemon do a better job of
picking the visual class that should be used for GL
programs. Less user intervention should be needed
now: you can use the logical visual name `GL' instead
of having to figure out by hand which one to use.
* Oops, the visual was defaulting to "best" instead of
"default", because the .xscreensaver file was not being
loaded quite early enough.
* Made configure figure out how to build icmp ping
support into the `sonar' hack automatically.
* Made warnings about not being able to read shadow
passwords not be printed if compiled with PAM support.
* Improved PAM startup diagnostics.
* Worked around the Solaris PAM bug that was causing
crashes there, so now PAM is turned on by default.
* Made configure detect the number of arguments that
pam_strerror() takes, since on Linux, this apparently
changed between 2.0 and 2.2, sigh.
* Made the /proc/interrupts kludge look for "PS/2 Mouse"
as well as "keyboard".
* Made xscreensaver notice when there has been a sudden
large jump in wall-clock time, and if so, lock right
away, instead of waiting for "lockTimeout" to expire
first. (Laptops need this for safer recovery from
``hibernation.'')
* Added `-throttle' option to `xscreensaver-command'.
Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
* Fixed a bug in the color allocator that sometimes
caused `starfish' to fall back to monochrome.
* Reduced the amount of code that runs before root
privileges are disavowed: "normal" and "shadow"
passwords now do some initialization as root, but the
PAM and Kerberos authorization schemes will be
initialized while running as "nobody". Supposedly
this closes a potential security hole when using
Kerberos.
* Added some more sanity checking to configure.
Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
`spotlight', and `critical' hacks.
* Added some new modes to `decayscreen'.
* Made `deluxe' work in monochrome.
* Generalized usage of the Double-Buffer server extension
in several hacks (`compass', `deluxe', `interference',
`kumppa', and `moire2'.)
* Fixed another visual-depth problem in `rd-bomb'.
* The screen saver will now defer blanking if neither
the keyboard nor the mouse could be grabbed. Instead,
it will just try again in a few minutes. This fixes
a bad interaction between xscreensaver and programs
like VMware that hold the mouse and keyboard grabbed
for a long time.
* Added a new erase mode (expanding spiral.)
Changes since 3.07: * Fixed some bugs in my port of `t3d'.
* Added `penetrate' and `deluxe' hacks.
* When linking against Motif 2.x, also link against XPM.
* Added support for using /proc/interrupts for idle
detection on Linux. Now xscreensaver shouldn't kick
in when the user is active on a non-X virtual console.
* Upgraded to autoconf 2.13.
Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
in properly; check for _Xsetlocale in -lXintl.)
* Portability fixes for sonar.c.
* Fixed a compilation problem when you have GL but don't
have XPM.
* Made configure notice when MesaGL requires -lpthread.
* Made `flame' ignore SIGFPE (not sure if this is the
right fix; it seems only to be needed on FreeBSD.)
* Kludged `rd-bomb' work on visuals that are of depth 24
but that *do not* support pixmaps of depth 32.
* Fixed `halo' to work properly in TrueColor.
* Changed `xscreensaver.spec' to install the hacks in
/usr/X11R6/lib/xscreensaver/ by default, since that's
where recent Red Hat distributions put them.
* Added `t3d' hack.
* Updated versions of `crystal', `hopalong', and `flow'
from xlockmore.
* Imported `demon' and `loop' modes from xlockmore.
Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
it was always installing a colormap if the
`installColormap' preference was set, meaning that
`xearth', `xv' and friends were using the wrong
colors on 8-bit systems.
* Turned off HAVE_PING in `sonar', since it compiles
on some Linux systems, but not others of similar
vintage...
Changes since 3.04: * Fixed an off-by-1 in `distort'.
* Added `sonar' hack.
* New version of `glplanet' (with stars.)
* Made all hacks exit when you type `q' or `ESC' at them,
and made them obey the WM_DELETE_WINDOW ClientMessage.
* Fixed a nonfatal buffer overrun in lament (note:
lament still doesn't work with MesaGL 3.0: it dies in
lambda_textured_triangle1(), which is Mesa's bug, not
mine.)
Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
for other folks to generate RPMs.
* Made the password code work on HPUX in the situation
where: ``enhanced security'' is available; but not
used; but the user typed a password more than 8
characters long anyway. FTSOHPUX.
Changes since 3.02: * Made locking work when passwd aging is enabled.
* Added support for PAM (Pluggable Authentication
Modules.) It is still turned off by default, though,
since it doesn't seem to work on Solaris 2.6, and has
been behaving erratically on Red Hat 5.1.
* Made each possible authentication method be tried in
turn until one succeeds; this means that Kerberos is
being used, we will first check Kerberos, and if that
fails, will then consult the local password file.
Likewise with PAM.
* Save and restore the bits under the passwd dialog,
to avoid leaving a black rectangle behind when
unlocking is cancelled.
Changes since 3.01: * Not everyone has sys/select.h, sigh...
Changes since 3.00: * Some fixes to `reflect'.
* Configure tweaks.
* Made it log unsuccessful attempts to unlock the screen
to syslog.
* Fixed a bug where `xscreensaver-demo' could be seeing
a different programs list than `xscreensaver' did.
Changes since 2.34: * The xscreensaver daemon no longer links against Motif
or Athena: demo-mode and the preferences panel are no
longer built in to the daemon, but are now handled by
an external program, `xscreensaver-demo'.
(I decided that this, along with the recent addition
of the `.xscreensaver' config file, justified bumping
the version number to 3.00, since this is a fairly
major architectural change.)
* Lines in the `*programs' resource may now begin with
the character "-", meaning "don't run this hack."
In this way, it's possible to disable a hack without
throwing away the information about it (making it
easier to change your mind later.) Eventually the
preferences/demo mode GUI should represent this as a
checkbox or something.
* Fixed a short race condition where it was possible for
xscreensaver to die with a BadWindow error if it was
blanking the screen just as another window was being
deleted.
* Made it possible to disable specific modes in `bsod'.
Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
many valves. Made the viewpoint in `pipes' be selected
randomly instead of always being -10 degrees.
* Fixed a bug in the XSHM code, in the case where the
server supports the XSHM extension but is not the same
machine as the client.
* Made `rd-bomb' default to taking up the whole screen.
* Made it not try to do fading/unfading if no PseudoColor
visuals exist.
* Initial attempt at supporting VT-locking (doesn't work
yet.)
* Eliminated the `captureStdout' resource; now
`captureStderr' controls both streams.
* Added `-capture-stderr' and `-no-capture-stderr'
command-line arguments.
* Added `glplanet' hack.
* When a hack is selected with `xscreensaver-command
-select', that hack will be used until further notice
(until the saver turns off, or another activation
command is issued.)
Changes since 2.32: * Made `xscreensaver-command' print error messages:
the xscreensaver daemon now responds to ClientMessage
events by writing a response message on a window
property, instead of just writing to its stderr.
* Made the ~/.xscreensaver file be automatically reloaded
when the file date changes.
* The password dialog and splash screen no longer depend
on Motif or Athena. This should clear up a number of
focus problems, and is the first step on the path
toward moving all of the Motif/Athena/whatever code
out of the xscreensaver daemon, and into external
processes.
* Don't complain about LessTif 0.86 any more, since the
new password dialog makes that problem go away.
* Configure tweaks for Irix 6.5, SunOS 5.something.
* New `-reflect' option to `distort'.
Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
so that the Preferences panel can save its settings.
* New version of `rubik'.
* Added `-select N' argument to `xscreensaver-command'.
* Oops, left out some of the `bubbles3d' files...
Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
* Made configure warn against MesaGL 2.6.
* Fixed X error at startup when using non-default visual.
* New version of `crystal', `ant', and `atlantis' from
xlockmore.
* New hack, `bubble3d'.
* Added some new modes to `bsod'.
Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
to be after Motif instead of before (Lesstif on Irix
needs this.)
Changes since 2.28: * Work around a bash bug in configure.
* Tweaked HPUX paths again. FTSOHPUX.
* Made configure recommend against LessTif 0.86, due
to a bug in that version that causes a security hole
in the screen locking code. LessTif 0.87 will fix it.
* Made all of the `--with' options to `configure' accept
a directory option as well (so that --with-motif=/FOO
will add -I/FOO/include -L/FOO/lib). I believe this is
the Configure Party Line of how do to such things.
* Fixed a bug where the mouse was left un-grabbed
after the first time the graphics hack was changed
(simplified all of the mouse-grabbing logic.)
* Maybe possibly perhaps made `vidwhacker' really not
leave stray xv windows around. This time for sure.
* Added a new erase mode (random dots fizzling out.)
* Added `-prefs' argument to `xscreensaver-command',
that brings up the Preferences dialog directly (it
seems that nobody ever noticed the `Preferences' button
on the Demo Mode dialog, maybe this will help.)
* Added a splash screen. Turn it off with *splash:false.
Changes since 2.27: * Better macsbug text in `bsod'.
* New version of `distort' with many new modes.
* Plugged a leak in `coral'.
* Tweaked configure for HPUX.
* Removed some compiler warnings.
* More consistent usage of stderr versus stdout.
* More diagnostics should an X error occur.
* Fixed a possible crash in SGI-specific unfading code.
Changes since 2.26: * Improved version of `distort'.
* Made `lament' compile against OpenGL 1.0 (though it
still requires 1.1 to work properly.)
* Updated my email address and home page.
Changes since 2.24: * Improved motion in `rd-bomb'.
* Added XSHM (shared memory extension) support to the
`distort', `interference', `moire', `rd-bomb', and
`swirl' hacks, which speeds them up a bit.
* Added `lament' hack.
Changes since 2.23: * Tweaked the order of the -L options again.
* Cleaned up configure's `--help' message.
* Added `kumppa' hack.
* Smarter maze-solving algorithm in `maze'.
* Took `xlyap' out of the default list of hacks, since
it's just incredibly buggy (and slow.) Maybe someday
someone will fix it...
* Added `distort' hack, but didn't add it to the default
list (yet) because it's still too slow.
* Made the Athena demo dialog look more like the Motif
version; it has a text-entry field now, too.
* Made the Athena password dialog echo asterisks, like
Motif does, instead of using a flyspeck font.
* Some random configure tweaks.
* Added a `timestamp' resource that makes the `-verbose'
messages include the time at which they were printed.
Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
let the user's "*background" resource show through.
Fixed it in a different way.
Changes since 2.21: * Added support for the DPMS server extension (Display
Power Management System.)
* Made configure advertize the `--enable-subdir' option a
little more, since that seemed to cause some people
stress. Also, made that directory be built into the
xscreensaver executable, as a hardcoded prefix to
$PATH. (Might help, shouldn't hurt.)
* Made configure prefer the two-arg gettimeofday to the
one-arg version, since AIX doesn't have any prototypes.
* Made it work with Xaw3d (the 3D Athena library.)
* Made `make install' create directories as necessary.
* New version of lmorph from Sverre.
* Added `crystal' and `discreet' hacks from xlockmore.
* Added a new mode to `bsod'.
Changes since 2.20: * Made `xscreensaver-command -time' use different words.
(It now describes the two states as "screen blanked
since..." and "screen non-blanked since..." instead of
"active since..." and "inactive since..." which a lot
of people interpreted as meaning the opposite of what
was intended.)
* Improved some error messages, in the hopes of making
the distinction between the xscreensaver and
xscreensaver-command programs more obvious.
* Rewrote (and reorganized) parts of the xscreensaver and
xscreensaver-command manual pages.
* Renamed xscreensaver's `-lock' command-line option to
be `-lock-mode', to avoid confusion with the `-lock'
option to xscreensaver-command, which does a totally
different thing.
* Removed xscreensaver's `-demo' command-line option for
a similar reason; use `xscreensaver-command -demo'
instead.
* Disabled SGI's ``scheme'' nonsense in a better way than
fully-qualifying the background colors in every single
hack.
* Fixed some other minor cosmetic problems when *sgiMode
is turned on.
* Fixed an X error in `bsod -root' (how ironic...)
Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
grabbed properly (meaning the window manager menu could
pop up over the demo-mode display.)
* Fixed a bug that made the stderr output sometimes get
printed twice.
* Fixed a bug that made the demo-mode scrollbar move too
fast.
* Protected against a possible buffer overflow.
* Made `vidwhacker' not leave stray xv windows around.
* New version of `ant' so that Bagley doesn't calve.
* Make configure on AIX get XShm from the right library.
Changes since 2.18: * One file was missing from the tar file. Fixed.
Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
* Added `epicycle' hack.
* Added `interference' hack.
* Added `truchet' hack.
* Added `bsod' hack.
* Added some new modes to `vidwhacker'.
Changes since 2.16: * Added a -window-id argument to most hacks, so that they
can draw on arbitrary externally-provided windows.
* Synched with xlockmore 4.11a01.
* Added `flow' hack.
* Added `atlantis' GL hack.
* Renamed `puzzle' hack to `jigsaw', since xlock already
had a different mode called `puzzle'.
* Made it self-configure properly when Motif 2.1.0 is
being used (requires -lXp now, sigh...)
Changes since 2.15: * Made `flag' able to do XPM images.
* New look for the xscreensaver logo (`xroger').
* Fixed compilation error on Suns with adjunct passwords.
* Got multi-architecture builds working again.
* Some configure tweaks for building on HPUX and Solaris.
* Fixed bug in decayscreen.
* Fixed typo in passwd.c.
* Made `cynosure' not die when colormap is full.
Changes since 2.14: * Added `cynosure' hack.
* Added `moire2' hack.
* Tweaked `erase.c' some more.
* Made unfading a bit smoother.
* Added `vidwhacker' hack (not installed by default.)
* Added `stairs' hack.
* Split `escher' into `cage' and `moebius', as per
xlockmore.
* Changed subprocess handling to use sigaction() instead
of signal() if it's available (this is necessary for
SCO but should work fine on other systems too.)
* Various other tweaks.
Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
* Put in some kludges to work around a LessTif bug.
* XScreenSaver is known to work with LessTif 0.82 now.
* Made fading work on high-end SGI video hardware.
* Fixed another SGI-specific bug in screen grabbing;
will the madness never cease?
* Fixed another crash in `xlyap'.
Changes since 2.12: * Made `decayscreen' do directions other than down.
* Improved `puzzle'.
* Fixed a crash in `xlyap'.
* Added CDE info to the man page, removed `cde.txt'.
* Configure tweaks for Zippy.
* Turned off the signal handling in `bubbles' because
it was sometimes failing to die.
* Added `hacks/xscreensaver-sgigl.c' to make it possible
to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
with xscreensaver. Finally!
* Fixed a buffer overrun in the locking code that some
wily, malicious cracker must have slipped in.
* Disabled Motif drag-and-drool in the dialog box
buttons, since it's broken in some old versions of
Motif.
Changes since 2.11: * Added `README.debugging'.
* Added `puzzle' hack.
* Added `xlyap' hack.
* Added `default-n' as a visual name, so that one can
have -install on by default, but turn it off for
certain poorly-behaved hacks (like xv.)
* Added support for grabbing frames of external video
(on SGI) to the screen-grabbing hacks (decayscreen,
slidescreen, slip, blitspin, and puzzle.)
* Improved look of tiles in `slidescreen'; fixed its
color allocation problem.
Changes since 2.10: * Tweaked `blitspin', added it to the default list.
* Added `lissie', `mountain', `triangle', `worm',
`rotor', and `ant' from xlockmore.
* Updated `sierpinski', `galaxy', and `lisa'.
* Thickened the lines in `braid' and `lmorph'.
* Updated VMS makefiles.
* Renamed `fract' to `vines'.
* Added `xjack' hack.
* Made a few more hacks use erase.c, and added a few
more wipe styles.
* Fixed compilation problem with Sun's version of OpenGL.
* Added ability to use sigaction() instead of signal()
to work around a SCO kernel bug.
Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
* Configure tweaks for *BSD.
Changes since 2.07: * New hacks `rd-bomb' and `coral'.
* New version of `maze' with some new algorithms.
* New colorized version of `rocks'.
* Fixed a bug in qix on 64-bit machines.
* Fixed a bug in the -time option.
* Fixed a bug in configure related to LessTif.
Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
* Made multi-architecture ($VPATH) builds work properly.
* Merged new GL stuff from xlockmore (rubik, morph3d.)
* Fixed intermittent crashes in `imsmap' and `munch'.
* Added `fadeplot' hack from xlockmore.
Changes since 2.05: * Merged in VMS support from Patrick Moreau.
Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
configure to detect the extra-random -Xss library.
Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
* Fixed low-color behavior of `goop', `pyro', `starfish',
`greynetic', `flame', `halo', and `moire'.
Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
* Added `munch' hack.
* Added basic dependencies to the Makefile.in files.
Changes since 2.01: * Fixes for compiling with the MIT saver extension.
* Made the yow/fortune program be a configure option.
* Various configure tweaks.
Changes since 2.00: * Added `goop' and `starfish' hacks.
* Added colomap cycling to `halo'.
* Made `attraction' use the new colormap allocator.
* Added better $PATH diagnostics.
* There was a bug in frand! Color selection should be
much improved now.
Changes since 1.34: * Converted to use `configure' instead of `imake'.
* ANSI C is now required.
* Added Kerberos locking support, from Nat Lanza.
* Made the stderr text use overlay planes, if possible.
* Reworked the xlockmore compatibility stuff again.
* Added `gears', `superquadrics', `escher', `pipes',
and `sproingies' hacks (depend on OpenGL.)
Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
Changes since 1.32: * Made it work with multi-headed displays.
* Generalized sub-process management (Unix sucks!)
* Added interactive mouse frobbing to Julia.
* Added (untested) support for HPUX shadow passwords.
* Made normal non-shadow passwords be checked if the
shadow passwords aren't accessible for some reason.
Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
made it possible to specify the desired visual on a
per-hack basis.
* Cleaned up / restructured the driver: no more globals.
* Made the Motif and Athena dialogs share more code.
* Probably fixed some Athena colormap-installation bugs.
* Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
* Fixed divide-by-zero in bright random colormaps.
* Added an improved version of xlock's `flag' hack.
* Made unfading work better, and not flicker on SGIs.
* Added `sphere', `forest', `lisa' hacks from xlockmore.
* Added (untested) support for SunOS Adjunct passwords.
Changes since 1.30: * Improved colors and colormap cycling of many hacks.
* Cleaned up xlockmore compatibility layer.
* Made `blitspin' able to grab an image off the screen.
* Ported `swirl' and `bouboule' hacks from xlockmore.
* Made the driver more careful about not leaving bits on
the screen, or allowing other windows to raise
themselves: it now re-blanks the screen every so often.
* Added `-time' option to `xscreensaver-command'.
* Improved SGI screen-grabbing some more: now it can grab
TrueColor screens into PseudoColor windows and have the
colors still come out semi-reasonably.
Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
SGIs when windows of different visuals are present, by
using the XReadDisplay() extension to get a true 24-bit
image out of the frame buffer.
* Made `noseguy' be in color, if compiled with XPM.
* Ported `braid', `drift', `fract', `galaxy', `grav',
`ifs', `julia', `laser', `lightning', `penrose',
`sierpinski', `slip', `spiral', and `strange' hacks
from xlockmore.
* Merged `hopalong' hack with a more recent version.
* Added `cde.txt'.
Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
* Merged in support for non-Motif locking and demo mode.
* Made `blitspin' and `bubbles' work in TrueColor.
* Fixed a stupid bug I introduced in `imsmap'.
* Added `poly' and `gravity' options to `qix'.
Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
* Made `fade' and `unfade' work on 8-bit SGIs.
* Made the dialog boxes more Motify.
* Added `bubbles' hack.
Changes since 1.25: * Added `lmorph' hack.
* Added viscosity and mouse-control to attraction.
* Fixed possible bad color choices in qix and attraction.
* Added ramp-mode to halo.
* Added a new RNG, which is faster and more portable
than using the RNG in libc.
* Made locking work on SCO.
* Various other minor tweaks that I don't remember.
Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
and present them on the screensaver window itself.
* Made demo mode work correctly with non-default visuals
and color maps, instead of always using the defaults.
* Added -visual argument to all included screenhacks.
* Support for the R6 MIT-SCREEN-SAVER server extension.
* Made the demo mode list scroll properly.
* Added `pedal' hack.
Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
decayscreen, and xroger. Fixed apparent conservation-
of-mass problem in pyro; made the shrapnel round.
Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
Changes since 1.21: * Minor tweaks for X11R6.
* Fixes for non-default visuals.
Changes since 1.20: * Fixed bug in color blitspin; added default image.
* Added diagnostics to noseguy. Fixed off-by-one
error in flame. Added some missing casts.
Changes since 1.18: * Added `flame' hack.
* Fixed a minor Motif dialog text field bug.
* Fixed yet another XPointer-not-defined-in-R4 bug.
Changes since 1.17: * Added support for shadow password files.
* Fixed some Motif-related locking bugs.
* Added diagnostics when locking is disabled.
* Made blitspin able to use the XPM library.
* Added `decayscreen' hack.
Changes since 1.16: * Added `halo' hack.
Changes since 1.15: * Portability fixes.
Changes since 1.14: * Broke the driver up into more source files.
* Moved the hacks into their own directory.
* Made all `time' parameters accept the 00:00:00 syntax,
so that even the parameters which are normally read as
minutes can be specified in seconds.
* Added colormap cycling to `imsmap'.
* Made hyper work with K&R compilers.
Changes since 1.13: * Added `orbit' option to `attraction' hack.
* Added `lock-timeout' option.
* Cleaned up options of `maze' hack.
Changes since 1.8: * Added demo mode, and locking.
* Added `maze' hack.
* Added `norotate' option to `rocks' hack.
A much more important factor in the social movement than those already mentioned was the ever-increasing influence of women. This probably stood at the lowest point to which it has ever fallen, during the classic age of Greek life and thought. In the history of Thucydides, so far as it forms a connected series of events, four times only during a period of nearly seventy years does a woman cross the scene. In each instance her apparition only lasts for a moment. In three of the four instances she is a queen or a princess, and belongs either to the half-barbarous kingdoms of northern Hellas or to wholly barbarous Thrace. In the one remaining instance208— that of the woman who helps some of the trapped Thebans to make their escape from Plataea—while her deed of mercy will live for ever, her name is for ever lost.319 But no sooner did philosophy abandon physics for ethics and religion than the importance of those subjects to women was perceived, first by Socrates, and after him by Xenophon and Plato. Women are said to have attended Plato’s lectures disguised as men. Women formed part of the circle which gathered round Epicurus in his suburban retreat. Others aspired not only to learn but to teach. Arêtê, the daughter of Aristippus, handed on the Cyrenaic doctrine to her son, the younger Aristippus. Hipparchia, the wife of Crates the Cynic, earned a place among the representatives of his school. But all these were exceptions; some of them belonged to the class of Hetaerae; and philosophy, although it might address itself to them, remained unaffected by their influence. The case was widely different in Rome, where women were far more highly honoured than in Greece;320 and even if the prominent part assigned to them in the legendary history of the city be a proof, among others, of its untrustworthiness, still that such stories should be thought worth inventing and preserving is an indirect proof of the extent to which feminine influence prevailed. With the loss of political liberty, their importance, as always happens at such a conjuncture, was considerably increased. Under a personal government there is far more scope for intrigue than where law is king; and as intriguers women are at least the209 equals of men. Moreover, they profited fully by the levelling tendencies of the age. One great service of the imperial jurisconsults was to remove some of the disabilities under which women formerly suffered. According to the old law, they were placed under male guardianship through their whole life, but this restraint was first reduced to a legal fiction by compelling the guardian to do what they wished, and at last it was entirely abolished. Their powers both of inheritance and bequest were extended; they frequently possessed immense wealth; and their wealth was sometimes expended for purposes of public munificence. Their social freedom seems to have been unlimited, and they formed combinations among themselves which probably served to increase their general influence.321 The old religions of Greece and Italy were essentially oracular. While inculcating the existence of supernatural beings, and prescribing the modes according to which such beings were to be worshipped, they paid most attention to the interpretation of the signs by which either future events in general, or the consequences of particular actions, were supposed to be divinely revealed. Of these intimations, some were given to the whole world, so that he who ran might read, others were reserved for certain favoured localities, and only communicated through the appointed ministers of the god. The Delphic oracle in particular enjoyed an enormous reputation both among Greeks and barbarians for guidance afforded under the latter conditions; and during a considerable period it may even be said to have directed the course of Hellenic civilisation. It was also under this form that supernatural religion suffered most injury from the great intellectual movement which followed the Persian wars. Men who had learned to study the constant sequences of Nature for themselves, and to shape their conduct according to fixed principles of prudence or of justice, either thought it irreverent to trouble the god about questions on which they were competent to form an opinion for themselves, or did not choose to place a well-considered scheme at the mercy of his possibly interested responses. That such a revolution occurred about the middle of the fifth century B.C., seems proved by the great change of tone in reference to this subject which one perceives on passing from Aeschylus to Sophocles. That anyone should question the veracity of an oracle is a supposition which never crosses the mind of the elder dramatist. A knowledge of augury counts among the greatest benefits222 conferred by Prometheus on mankind, and the Titan brings Zeus himself to terms by his acquaintance with the secrets of destiny. Sophocles, on the other hand, evidently has to deal with a sceptical generation, despising prophecies and needing to be warned of the fearful consequences brought about by neglecting their injunctions. The stranger had a pleasant, round face, with eyes that twinkled in spite of the creases around them that showed worry. No wonder he was worried, Sandy thought: having deserted the craft they had foiled in its attempt to get the gems, the man had returned from some short foray to discover his craft replaced by another. “Thanks,” Dick retorted, without smiling. When they reached him, in the dying glow of the flashlight Dick trained on a body lying in a heap, they identified the man who had been warned by his gypsy fortune teller to “look out for a hidden enemy.” He was lying at full length in the mould and leaves. "But that is sport," she answered carelessly. On the retirement of Townshend, Walpole reigned supreme and without a rival in the Cabinet. Henry Pelham was made Secretary at War; Compton Earl of Wilmington Privy Seal. He left foreign affairs chiefly to Stanhope, now Lord Harrington, and to the Duke of Newcastle, impressing on them by all means to avoid quarrels with foreign Powers, and maintain the blessings of peace. With all the faults of Walpole, this was the praise of his political system, which system, on the meeting of Parliament in the spring of 1731, was violently attacked by Wyndham and Pulteney, on the plea that we were making ruinous treaties, and sacrificing British interests, in order to benefit Hanover, the eternal millstone round the neck of England. Pulteney and Bolingbroke carried the same attack into the pages of The Craftsman, but they failed to move Walpole, or to shake his power. The English Government, instead of treating Wilkes with a dignified indifference, was weak enough to show how deeply it was touched by him, dismissed him from his commission of Colonel of the Buckinghamshire Militia, and treated Lord Temple as an abettor of his, by depriving him of the Lord-Lieutenancy of the same county, and striking his name from the list of Privy Councillors, giving the Lord-Lieutenancy to Dashwood, now Lord Le Despencer. "I tell you what I'll do," said the Deacon, after a little consideration. "I feel as if both Si and you kin stand a little more'n you had yesterday. I'll cook two to-day. We'll send a big cupful over to Capt. McGillicuddy. That'll leave us two for to-morrer. After that we'll have to trust to Providence." "Indeed you won't," said the Surgeon decisively. "You'll go straight home, and stay there until you are well. You won't be fit for duty for at least a month yet, if then. If you went out into camp now you would have a relapse, and be dead inside of a week. The country between here and Chattanooga is dotted with the graves of men who have been sent back to the front too soon." "Adone do wud that—though you sound more as if you wur in a black temper wud me than as if you pitied me." "Wot about this gal he's married?" "Don't come any further." "Davy, it 'ud be cruel of us to go and leave him." "Insolent priest!" interrupted De Boteler, "do you dare to justify what you have done? Now, by my faith, if you had with proper humility acknowledged your fault and sued for pardon—pardon you should have had. But now, you leave this castle instantly. I will teach you that De Boteler will yet be master of his own house, and his own vassals. And here I swear (and the baron of Sudley uttered an imprecation) that, for your meddling knavery, no priest or monk shall ever again abide here. If the varlets want to shrieve, they can go to the Abbey; and if they want to hear mass, a priest can come from Winchcombe. But never shall another of your meddling fraternity abide at Sudley while Roland de Boteler is its lord." "My lord," said Edith, in her defence, "this woman has sworn falsely. The medicine I gave was a sovereign remedy, if given as I ordered. Ten drops would have saved the child's life; but the contents of the phial destroyed it. The words I uttered were prayers for the life of the child. My children, and all who know me, can bear witness that I have a custom of asking His blessing upon all I take in hand. I raised my eyes towards heaven, and muttered words; but, my lord, they were words of prayer—and I looked up as I prayed, to the footstool of the Lord. But it is in vain to contend: the malice of the wicked will triumph, and Edith Holgrave, who even in thought never harmed one of God's creatures, must be sacrificed to cover the guilt, or hide the thoughtlessness of another." "Aye, Sir Treasurer, thou hast reason to sink thy head! Thy odious poll-tax has mingled vengeance—nay, blood—with the cry of the bond." HoME古一级毛片免费观看
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