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|
#!/bin/sh
# Forked from eselect opengl Gentoo module - this is reaaaaaaaaaally faster
# this is used only at Live time, to avoid the use of Portage
# Copyright 2006-2008 Fabio Erculiani
# Our data
ENV_FILE="/etc/env.d/03opengl"
PREFIX="/usr"
DST_PREFIX="/usr"
USE_PROFILE_HEADERS="no"
ES_VALID_MULTILIB_DIRS="lib lib32 lib64"
# list_libdirs PUBLIC
# Returns a space separated list of libdirs available on this machine
list_libdirs() {
local dir libdirs
libdirs=""
for dir in ${ES_VALID_MULTILIB_DIRS} ; do
if grep -q "^/${dir}\(\|/\)$" /etc/ld.so.conf &> /dev/null ; then
libdirs=( ${libdirs[@]} ${dir} )
fi
done
if [[ -z ${libdirs[@]} ]] ; then
# Broken or non-existing ld.so.conf
libdirs=( /lib* )
libdirs=( ${libdirs[@]/\/lib/lib} )
fi
echo "${libdirs[@]}"
}
# has test list
# Return true if list contains test
has() {
local test=${1} item
shift
for item in $@ ; do
[[ ${item} == ${test} ]] && return 0
done
return 1
}
# is_function function PUBLIC
# Test whether function exists
is_function() {
[[ $(type -t "${1}" ) == "function" ]]
}
# is_number PUBLIC
# Returns true if and only if $1 is a positive whole number
is_number() {
[[ -n ${1} ]] && [[ -z ${1//[[:digit:]]} ]]
}
get_current_implementation() {
local ret
local ldpath=$(cat ${ENV_FILE} | grep LDPATH | cut -d'"' -f 2)
local opengl_profile=$(cat ${ENV_FILE} | grep OPENGL_PROFILE | cut -d'"' -f 2)
if [[ -n ${opengl_profile} ]] ; then
ret="${opengl_profile}"
elif [[ -n ${ldpath} ]] ; then
ret="${ldpath%%:*}"
ret="${ret##*opengl/}"
ret="${ret%/lib*}"
fi
echo ${ret}
}
get_implementations() {
local ret dir
for x in $(list_libdirs) ; do
for dir in "${PREFIX}/${x}"/opengl/* ; do
[[ -d ${dir} && $(basename "${dir}") != "global" ]] || continue
has $(basename "${dir}") ${ret} && continue
ret=${ret:+${ret} }$(basename "${dir}")
done
done
echo ${ret}
}
setup_lib_symlinks() {
local profile_libdir=${1}
local libdir=${2}
local file
local rootfile
mkdir -p "${libdir}" || echo "Failed to create ${libdir}"
pushd "${libdir}" &> /dev/null
# First remove old symlinks
for file in libGL{,core}.{a,so,la} ; do
rm -f "${file}" || echo -q "Failed to delete ${file}"
done
# Note that we don't do .so*, just .so on purpose. The
# loader knows to look in the profile dir, and the
# linked just needs the .so
for file in ${profile_libdir}/libGL{,core}.{so,a,la}; do
rootfile="${file}"
[[ -f ${file} ]] || continue
if [[ -f $(basename "${file}") ]] ; then
rm -f "$(basename "${file}")" || echo -q "Failed to delete ${libdir}/$(basename "${file}")"
fi
# Fix libtool archives (#48297)
if [[ ${file%.la} != ${file} ]] ; then
sed "s:${profile_libdir}:${libdir}:g" "${file}" > "$(basename "${file}")" || echo "Failed to create ${libdir}/$(basename "${file}")"
else
ln -s "${rootfile}" || echo "Failed to create ${libdir}/$(basename "${file}")"
fi
done
popd &> /dev/null
}
set_new_implementation() {
local gl_implem=${1}
local avail_implems=$(get_implementations)
# Set a sane umask... bug #83115
umask 022
if ! has ${gl_implem} ${avail_implems}; then
echo "Invalid profile selected."
exit 1
fi
echo -n "Switching to ${gl_implem} OpenGL interface..."
local libdir
for libdir in $(list_libdirs); do
[[ ${ROOT} != / ]] && libdir=${libdir//${ROOT}}
# First make sure we have an opengl directory and this is a real lib dir, not a symlink
[[ -d ${PREFIX}/${libdir}/opengl && ! -h ${PREFIX}/${libdir} ]] || continue
# Fallback on xorg-x11 if we don't have this implementation for this libdir.
local gl_local
if [[ ! -d ${PREFIX}/${libdir}/opengl/"${gl_implem}" ]] ; then
gl_local="xorg-x11"
else
gl_local="${gl_implem}"
fi
setup_lib_symlinks "${PREFIX}/${libdir}/opengl/${gl_local}/lib" "${DST_PREFIX}/${libdir}"
if [[ -e ${PREFIX}/${libdir}/opengl/${gl_local}/lib/tls ]] ; then
setup_lib_symlinks "${PREFIX}/${libdir}/opengl/${gl_local}/lib/tls" "${DST_PREFIX}/${libdir}/tls"
fi
local moduledir
if [[ -e ${DST_PREFIX}/${libdir}/xorg/modules ]] ; then
moduledir="xorg/modules"
else
moduledir="modules"
fi
if [[ -e ${PREFIX}/${libdir}/opengl/${gl_local}/extensions ]] ; then
mkdir -p "${DST_PREFIX}/${libdir}/${moduledir}/extensions" || echo "Failed to create ${DST_PREFIX}/${libdir}/${moduledir}/extensions"
pushd "${DST_PREFIX}/${libdir}/${moduledir}/extensions" &> /dev/null
# First remove old symlinks
for file in lib{wfb,glx,dri,dri2}.{a,so,la}; do
rm -f "${file}" || echo "Failed to delete ${DST_PREFIX}/${libdir}/${moduledir}/extensions/${file}"
done
for file in ${PREFIX}/${libdir}/opengl/${gl_local}/extensions/*.{so,a,la}; do
[[ -f ${file} ]] || continue
if [[ -f $(basename "${file}") ]] ; then
rm -f "$(basename "${file}")" || echo "Failed to delete ${DST_PREFIX}/${libdir}/${moduledir}/extensions/$(basename "${file}")"
fi
# Fix libtool archives (#48297)
if [[ ${file%.la} != ${file} ]] ; then
sed "s:${PREFIX}/[^/]*/opengl/[^/]*/lib:${DST_PREFIX}/${libdir}:g" "${file}" > "$(basename "${file}")" || echo "Failed to create ${DST_PREFIX}/${libdir}/${moduledir}/extensions/$(basename "${file}")"
else
ln -s "${file}" || echo "Failed to create ${libdir}/$(basename "${file}")"
fi
done
popd &> /dev/null
fi
# Setup the includes
mkdir -p "${DST_PREFIX}/include/GL" || echo "Failed to create ${DST_PREFIX}/include/GL"
pushd "${DST_PREFIX}/include/GL" &> /dev/null
for file in gl.h glx.h glxtokens.h glext.h glxext.h glxmd.h glxproto.h; do
# IMPORTANT
# It is preferable currently to use the standard glext.h file
# however if an OpenGL provider must use a self produced glext.h
# then it should be installed to ${gl_implem}/include and the user
# can add the --impl-headers option to select it.
if [[ "${USE_PROFILE_HEADERS}" == "yes" ]] ; then
# Check the profile first.
if [[ -e ${PREFIX}/${libdir}/opengl/${gl_implem}/include/${file} ]] ; then
if [[ -f ${file} || ( -L ${file} && ! -e ${file} ) ]] ; then
rm -f "${file}" || echo "Failed to delete ${DST_PREFIX}/include/GL/$(basename "${file}")"
fi
ln -s ${PREFIX}/${libdir}/opengl/${gl_implem}/include/${file} || echo "Failed to create ${DST_PREFIX}/include/GL/$(basename "${file}")"
continue
fi
fi
if [[ -e ${PREFIX}/${libdir}/opengl/global/include/${file} ]] ; then
if [[ -f ${file} || ( -L ${file} && ! -e ${file} ) ]] ; then
rm -f "${file}" || echo "Failed to delete ${DST_PREFIX}/include/GL/$(basename "${file}")"
fi
ln -s ${PREFIX}/${libdir}/opengl/global/include/${file} || echo "Failed to create ${DST_PREFIX}/include/GL/$(basename "${file}")"
elif [[ -e ${PREFIX}/${libdir}/opengl/${gl_implem}/include/${file} ]] ; then
if [[ -f ${file} || ( -L ${file} && ! -e ${file} ) ]] ; then
rm -f "${file}" || echo "Failed to delete ${DST_PREFIX}/include/GL/$(basename "${file}")"
fi
ln -s ${PREFIX}/${libdir}/opengl/${gl_implem}/include/${file} || echo "Failed to create ${DST_PREFIX}/include/GL/$(basename "${file}")"
elif [[ -e ${PREFIX}/${libdir}/opengl/xorg-x11/include/${file} ]] ; then
if [[ -f ${file} || ( -L ${file} && ! -e ${file} ) ]] ; then
rm -f "${file}" || echo "Failed to delete ${DST_PREFIX}/include/GL/$(basename "${file}")"
fi
ln -s ${PREFIX}/${libdir}/opengl/xorg-x11/include/${file} || echo "Failed to create ${DST_PREFIX}/include/GL/$(basename "${file}")"
fi
done
popd &> /dev/null
# Setup the $LDPATH
ldpath="${ldpath:+${ldpath}:}${PREFIX}/${libdir}/opengl/${gl_local}/lib"
done
sed -i '/LDPATH=.*/d' ${ENV_FILE}
echo "LDPATH=\"${ldpath}\"" >> ${ENV_FILE}
oldldpath=$(cat /etc/profile.env|grep LDPATH | cut -d"'" -f2)
sed -i '/export LDPATH=.*/d' /etc/profile.env
sed -i '/setenv LDPATH=.*/d' /etc/csh.env
sed -i '/export LD_LIBRARY_PATH=.*/d' /etc/profile.env
sed -i '/setenv LD_LIBRARY_PATH=.*/d' /etc/csh.env
sed -i "s/OPENGL_PROFILE=.*/OPENGL_PROFILE='${gl_implem}'/" /etc/profile.env
sed -i "s/OPENGL_PROFILE=.*/OPENGL_PROFILE='${gl_implem}'/" /etc/csh.env
sed -i '/LD_LIBRARY_PATH=.*/d' ${ENV_FILE}
sed -i "s/OPENGL_PROFILE=.*/OPENGL_PROFILE=\"${gl_implem}\"/" ${ENV_FILE}
echo "export LDPATH='"${ldpath}":"${oldldpath}"'" >> /etc/profile.env
echo "setenv LDPATH='"${ldpath}":"${oldldpath}"'" >> /etc/csh.env
echo "export LD_LIBRARY_PATH='"${ldpath}"'" >> /etc/profile.env
echo "setenv LD_LIBRARY_PATH='"${ldpath}"'" >> /etc/csh.env
echo 'LD_LIBRARY_PATH="'${ldpath}'"' >> ${ENV_FILE}
source /etc/profile &> /dev/null
echo " done"
}
do_set() {
local action="error"
local current=$(get_current_implementation)
local available=$(get_implementations)
local new
while [[ ${#@} -gt 0 ]] ; do
local opt=${1}
shift
case ${opt} in
*)
action="set-implementation"
if has ${opt} ${available}; then
new="${opt}"
else
echo "Unrecognized option: ${opt}"
fi
;;
esac
done
case ${action} in
set-implementation)
if [[ -n ${new} ]] ; then
set_new_implementation ${new}
rc=$?
sed -i "s/opengl\/xorg-x11\//opengl\/${new}\//" /etc/ld.so.conf
sed -i "s/opengl\/ati\//opengl\/${new}\//" /etc/ld.so.conf
sed -i "s/opengl\/nvidia\//opengl\/${new}\//" /etc/ld.so.conf
ldconfig -X &> /dev/null
return ${rc}
else
echo "Please specify an implementation to set"
fi
;;
*)
echo "Invalid usage of set action."
;;
esac
}
do_show() {
local current=$(get_current_implementation)
echo ${current}
}
is_live=$(cat /proc/cmdline | grep cdroot)
if [ -n "$is_live" ]; then
if [ "$1" == "show" ]; then
do_show
else
do_set $@
fi
else
if [ "$1" == "show" ]; then
eselect opengl show
else
eselect opengl set $@
fi
fi
|
