jigsaw - permute the screen image like a jigsaw puzzle
.SH SYNOPSIS
.B jigsaw
-[\-display \fIhost:display.screen\fP] [\-background \fIcolor\fP] [\-delay \fIusecs\fP] [\-window] [\-root] [\-install] [\-visual \fIvisual\fP]
+[\-display \fIhost:display.screen\fP] [\-background \fIcolor\fP]
+[\-delay \fIusecs\fP] [\-window] [\-root] [\-install] [\-visual \fIvisual\fP]
.SH DESCRIPTION
-The \fIjigsaw\fP program takes an image of the screen, carves it up into
+The \fIjigsaw\fP program takes an image, carves it up into
a jigsaw puzzle, shuffles it, and then solves it.
+
+The image that it manipulates will be grabbed from the portion of
+the screen underlying the window, or from the system's video input,
+or from a random file on disk, as indicated by
+the \fIgrabDesktopImages\fP, \fIgrabVideoFrames\fP,
+and \fIchooseRandomImages\fP options in the \fI~/.xscreensaver\fP
+file; see
+.BR xscreensaver-demo (1)
+for more details.
.SH OPTIONS
.I jigsaw
accepts the following options:
.TP 8
.B \-delay \fImicroseconds\fP
How long to wait between shuffling pieces; default 700000, or 0.7 seconds.
-.SH RESOURCES
-On some systems (currently, only SGIs), this program can, instead of grabbing
-a desktop image, grab a frame of video from an external camera and manipulate
-that instead. The following resources control that.
-.PP
-.TP 8
-.B grabVideoProbability \fR(Float)\fP
-What portion of the time to grab video rather than a screen image,
-between 0.0 and 1.0. Defaults to 0.5, or half the time.
-.TP 8
-.B videoDevice \fR(Integer)\fP
-The number of the default video input device to check first. If unspecified,
-the default camera (from videopanel(1)) will be checked first. After that, all
-other available video input devices will be checked in order.
-
-The first one which produces a non-black image will be used. If all images
-are black, the others will be re-checked a few times before giving up and
-falling back to simply grabbing a desktop image (but note that this takes a
-few seconds, so if you don't actually have any video sources hooked up, you
-should consider turning off video grabbing by setting
-\fBgrabVideoProbability\fP to 0.0.)
-.TP 8
-.B videoGain \fR(Float)\fP
-The amount by which to brighten the grabbed image. This defaults to 2.2.
.SH ENVIRONMENT
.PP
.TP 8
stored in the RESOURCE_MANAGER property.
.SH SEE ALSO
.BR X (1),
-.BR xscreensaver (1)
+.BR xscreensaver (1),
+.BR xscreensaver\-demo (1),
+.BR xscreensaver\-getimage (1)
.SH COPYRIGHT
Copyright \(co 1997 by Jamie Zawinski. Permission to use, copy, modify,
distribute, and sell this software and its documentation for any purpose is
suitability of this software for any purpose. It is provided "as is" without
express or implied warranty.
.SH AUTHOR
-Jamie Zawinski <jwz@netscape.com>, 25-Nov-97.
+Jamie Zawinski <jwz@jwz.org>, 25-Nov-97.