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-rwxr-xr-xx11vnc/misc/Xdummy124
1 files changed, 97 insertions, 27 deletions
diff --git a/x11vnc/misc/Xdummy b/x11vnc/misc/Xdummy
index 03fc44b..638a7b3 100755
--- a/x11vnc/misc/Xdummy
+++ b/x11vnc/misc/Xdummy
@@ -1,5 +1,27 @@
#!/bin/sh
-#
+# ----------------------------------------------------------------------
+# Copyright (C) 2005-2010 Karl J. Runge <runge@karlrunge.com>
+# All rights reserved.
+#
+# This file is part of Xdummy.
+#
+# Xdummy is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or (at
+# your option) any later version.
+#
+# Xdummy is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Xdummy; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA
+# or see <http://www.gnu.org/licenses/>.
+# ----------------------------------------------------------------------
+#
+#
# Xdummy: an LD_PRELOAD hack to run a stock Xorg(1) or XFree86(1) server
# with the "dummy" video driver to make it avoid Linux VT switching, etc.
#
@@ -14,6 +36,7 @@ root=""
nosudo=""
xserver=""
geom=""
+nomodelines=""
depth=""
debug=""
strace=""
@@ -51,13 +74,20 @@ $program:
LD_PRELOAD tricks are usually "clever hacks" and so might not work
in all situations or break when something changes.
- This program does not need to be run as root as of 12/2009. However,
- if there are problems for certain situations (usually older servers)
- it may perform better if run as root (use the -root option.)
+ WARNING: Take care in using Xdummy, although it never has it is
+ possible that it could damage hardware. One can use the -prconf
+ option to have it print out the xorg.conf config that it would use
+ and then inspect it carefully before actually using it.
+
+ This program no longer needs to be run as root as of 12/2009.
+ However, if there are problems for certain situations (usually older
+ servers) it may perform better if run as root (use the -root option.)
+ When running as root remember the previous paragraph and that Xdummy
+ comes without any warranty.
- Also, gcc/cc and other build tools are required for this script to
- be able to compile the LD_PRELOAD shared object. Be sure they are
- installed on the system. See -install and -uninstall described below.
+ gcc/cc and other build tools are required for this script to be able
+ to compile the LD_PRELOAD shared object. Be sure they are installed
+ on the system. See -install and -uninstall described below.
Your Linux distribution may not install the dummy driver by default,
e.g:
@@ -190,15 +220,20 @@ Options:
argument. It is passed to the real X server and
also used by the Xdummy script as an identifier.
- -geom geom1[,geom2...] Take the geometry (e.g. 1024x768) or
- list of geometries and insert them into the
- Screen section of the tweaked X server
- config file. Use this to have a smaller geometry
- than the one in the system config file.
+ -geom geom1[,geom2...] Take the geometry (e.g. 1024x768) or list
+ of geometries and insert them into the Screen
+ section of the tweaked X server config file.
+ Use this to have a different geometry than the
+ one(s) in the system config file.
The option -geometry can be used instead of -geom;
x11vnc calls Xdummy and Xvfb this way.
+ -nomodelines When you specify -geom/-geometry, $program will
+ create Modelines for each geometry and put them
+ in the Monitor section. If you do not want this
+ then supply -nomodelines.
+
-depth n Use pixel color depth n (e.g. 8, 16, or 24). This
makes sure the X config file has a Screen.Display
subsection of this depth. Note this option is
@@ -274,6 +309,8 @@ Options:
that are not consistent with "dummy" mode will be overwritten
(unless -notweak is specified.)
+ Use -config xdummy-builtin to force usage of the builtin config.
+
If "file" is only a basename (e.g. "xorg.dummy.conf") with no /'s,
then no tweaking of it is done: the X server will look for that
basename via its normal search algorithm. If the found file does
@@ -439,6 +476,8 @@ do
;;
"-geometry") geom="$2"; shift
;;
+ "-nomodelines") nomodelines=1
+ ;;
"-depth") depth="$2"; args="$args -depth $2";
shift
;;
@@ -513,18 +552,18 @@ make_so() {
tail -n +$n1 $0 | head -n $dn > $tmp
# compile it to Xdummy.so:
- if [ -f $SO ]; then
+ if [ -f "$SO" ]; then
mv $SO $SO.$$
rm -f $SO.$$
fi
rm -f $SO
touch $SO
- if [ ! -f $SO ]; then
+ if [ ! -f "$SO" ]; then
SO=$tdir/Xdummy.$user.so
warn "warning switching LD_PRELOAD shared object to: $SO"
fi
- if [ -f $SO ]; then
+ if [ -f "$SO" ]; then
mv $SO $SO.$$
rm -f $SO.$$
fi
@@ -559,21 +598,21 @@ fi
# Handle -install/-uninstall case:
SO=$0.so
if [ "X$install" != "X" -o "X$uninstall" != "X" ]; then
- if [ -e $SO -o -h $SO ]; then
+ if [ -e "$SO" -o -h "$SO" ]; then
warn "$program: removing $SO"
fi
- if [ -f $SO ]; then
+ if [ -f "$SO" ]; then
mv $SO $SO.$$
rm -f $SO.$$
fi
rm -f $SO
- if [ -e $SO -o -h $SO ]; then
+ if [ -e "$SO" -o -h "$SO" ]; then
warn "warning: $SO still exists."
exit 1
fi
if [ $install ]; then
make_so
- if [ ! -f $SO ]; then
+ if [ ! -f "$SO" ]; then
exit 1
fi
fi
@@ -628,7 +667,7 @@ fi
#
tfile="$XDUMMY_TMPDIR/test.file"
touch $tfile
-if [ ! -f $tfile ]; then
+if [ ! -f "$tfile" ]; then
XDUMMY_TMPDIR="/tmp/Xdummy.$$.$USER"
warn "warning: setting tmpdir to $XDUMMY_TMPDIR ..."
rm -rf $XDUMMY_TMPDIR || exit 1
@@ -640,7 +679,7 @@ export XDUMMY_TMPDIR
# Compile the LD_PRELOAD shared object if needed (needs XDUMMY_TMPDIR)
#
-if [ ! -f $SO ]; then
+if [ ! -f "$SO" ]; then
SO="$XDUMMY_TMPDIR/Xdummy.so"
make_so
fi
@@ -835,10 +874,13 @@ tweak_config() {
#
env XDUMMY_GEOM=$geom \
XDUMMY_DEPTH=$depth \
+ XDUMMY_NOMODELINES=$nomodelines \
perl > $config2 < $in -e '
$n = 0;
$geom = $ENV{XDUMMY_GEOM};
$depth = $ENV{XDUMMY_DEPTH};
+ $nomodelines = $ENV{XDUMMY_NOMODELINES};
+ $mode_str = "";
$videoram = "24000";
$HorizSync = "30.0 - 130.0";
$VertRefresh = "50.0 - 250.0";
@@ -846,6 +888,22 @@ tweak_config() {
my $tmp = "";
foreach $g (split(/,/, $geom)) {
$tmp .= "\"$g\" ";
+ if (!$nomodelines && $g =~ /(\d+)x(\d+)/) {
+ my $w = $1;
+ my $h = $2;
+ $mode_str .= " Modeline \"$g\" ";
+ my $dot = sprintf("%.2f", $w * $h * 70 * 1.e-6);
+ $mode_str .= $dot;
+ $mode_str .= " " . $w;
+ $mode_str .= " " . int(1.02 * $w);
+ $mode_str .= " " . int(1.10 * $w);
+ $mode_str .= " " . int(1.20 * $w);
+ $mode_str .= " " . $h;
+ $mode_str .= " " . int($h + 1);
+ $mode_str .= " " . int($h + 3);
+ $mode_str .= " " . int($h + 20);
+ $mode_str .= "\n";
+ }
}
$tmp =~ s/\s*$//;
$geom = $tmp;
@@ -912,6 +970,10 @@ tweak_config() {
print " ##Xdummy:##\n";
print " VertRefresh $VertRefresh\n";
}
+ if (!$nomodelines) {
+ print " ##Xdummy:##\n";
+ print $mode_str;
+ }
}
$sect = "";
print;
@@ -925,7 +987,7 @@ tweak_config() {
$subsect =~ y/A-Z/a-z/;
$subsects{$subsect} = 1;
if ($sect eq "screen" && $subsect eq "display") {
- $got_Mode = 0;
+ $got_Modes = 0;
}
print;
next;
@@ -938,7 +1000,7 @@ tweak_config() {
print " ##Xdummy:##\n";
print " Depth\t$depth\n";
}
- if ($geom ne "" && ! $got_Mode) {
+ if ($geom ne "" && ! $got_Modes) {
print " ##Xdummy:##\n";
print " Modes\t$geom\n";
}
@@ -1073,7 +1135,9 @@ tweak_config() {
print " SubSection \"Display\"\n";
print " Viewport 0 0\n";
print " Depth 24\n";
- if ($geom ne "") {
+ if ($got_Modes) {
+ ;
+ } elsif ($geom ne "") {
print " Modes $geom\n";
} else {
print " Modes \"1280x1024\" \"1024x768\" \"800x600\"\n";
@@ -1088,6 +1152,8 @@ tweak_config() {
#
if [ "X$cmdline_config" = "X" ]; then
:
+elif [ "X$cmdline_config" = "Xxdummy-builtin" ]; then
+ :
elif echo "$cmdline_config" | grep '/' > /dev/null; then
:
else
@@ -1119,7 +1185,7 @@ if [ ! $notweak ]; then
config="/etc/X11/XF86Config"
fi
fi
- if [ ! -f $config ]; then
+ if [ ! -f "$config" ]; then
for c in /etc/X11/xorg.conf /etc/X11/XF86Config-4 /etc/X11/XF86Config
do
if [ -f $c ]; then
@@ -1130,7 +1196,11 @@ if [ ! $notweak ]; then
fi
fi
- if [ ! -f $config ]; then
+ if [ "X$config" = "Xxdummy-builtin" ]; then
+ config=""
+ fi
+
+ if [ ! -f "$config" ]; then
config="$XDUMMY_TMPDIR/xorg.conf"
warn "$program: using minimal built-in xorg.conf settings."
cat > $config <<END
@@ -1195,7 +1265,7 @@ EndSection
END
fi
- if [ -f $config ]; then
+ if [ -f "$config" ]; then
tweak_config $config
fi
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-25 01:44:15 +0000