milis/talimatname/genel/g/gl-select/gl-select-kod

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#!/bin/bash
#
# gl-select: select active gl/glx libraries/extensions
#
infoUsage() {
echo "Usage: $(basename $0) [ status | use [xorg|nvidia|ati] ]"
exit 0
}
infoMissing() {
echo "One or more of the non-xorg gl/glx backup files are missing."
echo "This means either you're not using a non-xorg gl/glx setup, in which"
echo "case nothing needs to be changed, OR your xorg backups are missing,"
echo "which can be solved by reinstalling xorg-server and mesa3d packages."
echo
echo "Files:"
getMissBackups
exit 1
}
infoRevert() {
echo "You appear to already be using a non-xorg gl/glx setup. Check that by"
echo "using 'gl-select status', OR if the one selected isn't the correct one,"
echo "revert to xorg and then select the correct new setup using:"
echo "'gl-select use xorg; gl-select use <new gl/glx>'."
echo
echo "Files:"
getExistBackups
exit 1
}
infoOldStuff() {
echo "You appear to be using a non-xorg gl/glx setup. You should revert your"
echo "selection to xorg and then select the correct new setup, but seems you"
echo "are using the old stuff setup due to gl-select 1.3, so you need to use"
echo "something like:"
echo "'gl-select use xorg --old-stuff; gl-select use <new gl/glx>'."
exit 1
}
checkInstalled() {
# checks either a single port or list of ports
local notInstalled=1
for arg in $@; do
if [ ! -z "`pkginfo -i | awk '{ print $1 }' | grep -e ^$arg$`" ]; then
notInstalled=0
fi
done
if [ $notInstalled -eq 1 ]; then
if [ $# -eq 1 ]; then
echo "$arg isn't installed!"
else
echo "None of the following ports are installed! (one is required)"
for i in $@; do echo " $i"; done
fi
exit 1
fi
}
getMissBackups() {
# get missing xorg backup'ed files
for b in $BACKUPS; do if [ ! -f $b ]; then echo $b; fi; done
}
getExistBackups() {
# get existing xorg backup'ed files
for b in $BACKUPS; do if [ -f $b ]; then echo $b; fi; done
}
doGLsymlinks() {
[ ! -L /usr/lib/libGL.so.1 ] && ln -sf libGL.so.1.2 /usr/lib/libGL.so.1
[ ! -L /usr/lib/libGL.so ] && ln -sf libGL.so.1 /usr/lib/libGL.so
return 0
}
doStatus() {
# check which selection its being used
local file=$(file -h /usr/lib/libGL.so.1.2.0 | awk '{ if (/symbolic link/) print $5; else print $1; }' | sed 's|:||')
case $file in
*libGL.so.1.2.0) echo "* xorg gl/glx is selected" ;;
*libGL_so_1_2_nvidia) echo "* nvidia gl/glx is selected" ;;
*libGL_so_1_2_ati) echo "* ati gl/glx is selected" ;;
*) echo "unsupported: $file"; infoOldStuff ;;
esac
}
doUse() {
# perform the selection for the following supported gl/glx setups
local selection=$1
local options=$2
[ -z "$selection" ] && infoUsage
case $selection in
"xorg")
[ "$options" == "--old-stuff" ] && oldStuff
# check for missing xorg backup'ed files
local mbackups="$(getMissBackups)"
[ ! -z "$mbackups" ] && infoMissing $mbackups
# switch to xorg stuff
(
# libglx
rm -f /usr/lib/xorg/modules/extensions/libglx.so
mv /usr/lib/xorg/modules/extensions/libglx{_so,.so}
# libGL
rm -f usr/lib/libGL.so.1.2.0
mv /usr/lib/libGL{_so_1_2,.so.1.2.0}
doGLsymlinks
) && echo "* xorg gl/glx selected"
;;
"nvidia")
# is an nvidia port installed?
checkInstalled nvidia nvidia-sl nvidia-legacy-96xx nvidia-legacy-71xx
# check for the existence of xorg backups
local ebackups="$(getExistBackups)"
[ ! -z "$ebackups" ] && infoRevert $ebackups
# switch to nvidia stuff
# conflicting files which ati provides:
# libglx_so_nvidia, libGL_so_1_2_nvidia
(
# libglx
mv /usr/lib/xorg/modules/extensions/libglx{.so,_so}
ln -s libglx_so_nvidia /usr/lib/xorg/modules/extensions/libglx.so
# libGL
mv /usr/lib/libGL{.so.1.2.0,_so_1_2}
ln -sf libGL_so_1_2_nvidia /usr/lib/libGL.so.1.2.0
doGLsymlinks
) && echo "* nvidia gl/glx selected"
;;
"ati")
# is the ati port installed?
checkInstalled ati
# check for the existence of xorg backups
local ebackups="$(getExistBackups)"
[ ! -z "$ebackups" ] && infoRevert $ebackups
# switch to ati stuff
# conflicting files which ati provides:
# libglx_so_ati, libGL_so_1_2_ati
(
# libglx
mv /usr/lib/xorg/modules/extensions/libglx{.so,_so}
ln -s libglx_so_ati /usr/lib/xorg/modules/extensions/libglx.so
# libGL
mv /usr/lib/libGL{.so.1.2.0,_so_1_2}
ln -sf libGL_so_1_2_ati /usr/lib/libGL.so.1.2.0
doGLsymlinks
) && echo "* ati gl/glx selected"
;;
*)
infoUsage
;;
esac
/sbin/ldconfig > /dev/null 2>&1
}
oldStuff() {
for f in /usr/lib/xorg/modules/extensions/libglx_so \
/usr/lib/libGL_so_1_2; do
[ ! -e $f ] && infoMissing $f
done
# move the old xorg backups back into place
(
# libglx
rm -f /usr/lib/xorg/modules/extensions/libglx.so
mv /usr/lib/xorg/modules/extensions/libglx{_so,.so}
# libGL
mv /usr/lib/libGL{_so_1_2,.so.1.2.0}
rm -f /usr/lib/libGL.so /usr/lib/libGL.so.1
doGLsymlinks || echo "done"
) && echo "* xorg gl/glx selected"
exit 0
}
# backup files which are also provided by nvidia and ati ports
BACKUPS="
/usr/lib/xorg/modules/extensions/libglx_so
/usr/lib/libGL_so_1_2
"
# check for xorg ports; if they are not installed, why is this script even run?
checkInstalled xorg-server mesa3d
case $1 in
status) doStatus ;;
use) shift 1; doUse $@ ;;
*) infoUsage ;;
esac
# End of file