New version of opengl-update

opengl-update-1.6 (text/plain), 5.69 KB, created by Robin Johnson on 2003-05-21 22:41:42 UTC

#!/bin/bash
# Copyright 1999-2002 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License, v2 or later
# Author:  Martin Schlemmer <[e-mail]>
# $Header: /home/cvsroot/gentoo-x86/x11-base/opengl-update/files/opengl-update-1.5,v 1.1 2002/12/31 21:19:22 azarah Exp $


source /etc/init.d/functions.sh
OPENGL_SRC="/usr/lib/opengl/"
GL_IMPLEM=""

if [ `id -u` -ne 0 ]
then
	eerror "${0}: must be root."
	exit 1
fi

function usage() {
cat << FOO
usage: opengl-update <GL implementation>

note:  
       This utility switch between OpenGL implementations.  Currently there are
       three supported implementations, namely "xfree", "nvidia" and "ati", the
       implementations for XFree86, NVidia and the ATI drivers respectively.

examples:
       opengl-update --autodetect
       This will attempt to autodetect the correct libGL.so to use.

       opengl-update xfree
       This will setup things to use libGL.so from XFree86

       opengl-update nvidia
       This will setup things to use libGL.so from the NVidia drivers.
       
       opengl-update ati
       This will setup things to use libGL.so from the ATI drivers.
	   
FOO
	exit 1
}

function autodetect() {
	# don't use 'cat /proc/pci' as that is gone in 2.5/2.6 kernels
	nvidia_detected=`lspci | egrep -i '\<nvidia\>' | wc -l | grep -v '0'`
	ati_detected=`lspci | egrep -i '\<ati\>' | wc -l | grep -v '0'`
	ati_installed=
	nvidia_installed=
	[ -d /usr/lib/opengl/ati ] && ati_installed=1
	[ -d /usr/lib/opengl/nvidia ] && nvidia_installed=1
	
	# Extra info
	#[ -n "${nvidia_installed}" ] && einfo "NVidia drivers installed"
	#[ -n "${ati_installed}" ] && einfo "ATI drivers installed"
	#[ -n "${nvidia_detected}" ] && einfo "NVidia card detected"
	#[ -n "${ati_detected}" ] && einfo "ATI card detected"
	
	# Some info for the user
	[ -z "${nvidia_installed}" ] && [ -n "${nvidia_detected}" ] && einfo "NVidia Card detected, but NVidia drivers not installed"
	[ -z "${ati_installed}" ] && [ -n "${ati_detected}" ] && einfo "ATI Card detected, but ATI drivers not installed"
	
	[ -z "${ati_installed}" ] && [ -z "$nvidia_installed" ] && mode='xfree'
	[ -n "${nvidia_detected}" ] && [ -n "${nvidia_installed}" ] && mode='nvidia'
	[ -n "${ati_detected}" ] && [ -n "${ati_installed}" ] && mode='ati'
	[ -n "${nvidia_detected}" ] && [ -n "${ati_detected}" ] && mode='mixed'

	# Extra check for users with BOTH cards
	case "${mode}" in
		mixed) eerror "Both ATI and NVidia cards detected, please specify manually."; exit 2 ;;
		*) GL_IMPLEM="${mode}" ;;
	esac;
}

function getsetting() {
	if [ -f /etc/env.d/09opengl ]
	then
		source /etc/env.d/09opengl
		if [ -n "${LDPATH}" ]
		then
			GL_IMPLEM="${LDPATH/\/usr\/lib\/opengl\/}"
			GL_IMPLEM="${GL_IMPLEM/\/lib}"
			unset LDPATH
		fi
	fi
}

function useold() {
	getsetting
	if [ -z "${GL_IMPLEM}" ]
	then
		GL_IMPLEM="$1"
	fi;
}


if [ "$#" -ne 1 -a "$#" -ne 2 ] || [ "$#" -eq 2 -a "$1" != "--use-old" ]
then
	usage
fi

# Return the setting for the user
if [ "$1" == "--get" ]; then
	getsetting
	echo "${GL_IMPLEM}"
	exit 0
# Only use specified implementation if it is not already selected.
elif [ "$1" == "--use-old" ]; then
	shift
	useold
# Autodetection here
elif [ "$1" == "--autodetect" ]; then
	shift
	autodetect
# Nope, they are setting it expliciatly instead!
else
	GL_IMPLEM="$1"
fi

# Now attempt to apply the changes
if [ ! -d "${OPENGL_SRC}${GL_IMPLEM}" ]
then
	# Tell them what they did wrong
	eerror "The driver \"${GL_IMPLEM}\" you have requested is not installed"
	echo
	usage
else
	ebegin "Switching to ${GL_IMPLEM} OpenGL interface"

	#setup the $LDPATH
	echo "LDPATH=${OPENGL_SRC}${GL_IMPLEM}/lib" >/etc/env.d/09opengl
	/usr/sbin/env-update &>/dev/null

	#setup the /usr/lib/libGL.so symlink
	if [ -e /usr/lib/libGL.so ]
	then
		rm -f /usr/lib/libGL.so
	fi
	if [ -e /usr/lib/libGL.so.1 ]
	then
		rm -f /usr/lib/libGL.so.1
	fi
	realname="$(readlink ${OPENGL_SRC}${GL_IMPLEM}/lib/libGL.so)"
	ln -sf ${OPENGL_SRC}${GL_IMPLEM}/lib/${realname} \
		/usr/lib/libGL.so
	ln -sf ${OPENGL_SRC}${GL_IMPLEM}/lib/${realname} \
		/usr/lib/libGL.so.1

	#setup the /usr/X11R6/lib/libMesaGL.so symlink
	if [ -e /usr/X11R6/lib/libMesaGL.so ]
	then
		rm -f /usr/X11R6/lib/libMesaGL.so
	fi
	realname="$(readlink ${OPENGL_SRC}${GL_IMPLEM}/lib/libGL.so)"
	ln -sf ${OPENGL_SRC}${GL_IMPLEM}/lib/${realname} \
		/usr/X11R6/lib/libMesaGL.so

	#setup the /usr/lib/libGLcore.so symlink
	if [ -e /usr/lib/libGLcore.so ]
	then
		rm -f /usr/lib/libGLcore.so
	fi
	if [ -e /usr/lib/libGLcore.so.1 ]
	then
		rm -f /usr/lib/libGLcore.so.1
	fi
	if [ -e ${OPENGL_SRC}${GL_IMPLEM}/lib/libGLcore.so ]
	then
		realname="$(readlink ${OPENGL_SRC}${GL_IMPLEM}/lib/libGLcore.so)"
		ln -sf ${OPENGL_SRC}${GL_IMPLEM}/lib/${realname} \
			/usr/lib/libGLcore.so
		ln -sf ${OPENGL_SRC}${GL_IMPLEM}/lib/${realname} \
			/usr/lib/libGLcore.so.1
	fi

	#setup the /usr/X11R6/lib/modules/extensions/libglx.so symlink
	if [ -e /usr/X11R6/lib/modules/extensions/libglx.so ]
	then
		rm -f /usr/X11R6/lib/modules/extensions/libglx.so
	fi
	if [ -e ${OPENGL_SRC}${GL_IMPLEM}/extensions/libglx.so ]
	then
		ln -sf ${OPENGL_SRC}${GL_IMPLEM}/extensions/libglx.so \
			/usr/X11R6/lib/modules/extensions/libglx.so
	fi
	#setup the /usr/X11R6/lib/modules/extensions/libglx.a symlink
	if [ -e /usr/X11R6/lib/modules/extensions/libglx.a ]
	then
		rm -f /usr/X11R6/lib/modules/extensions/libglx.a
	fi
	if [ -e ${OPENGL_SRC}${GL_IMPLEM}/extensions/libglx.a ]
	then
		ln -sf ${OPENGL_SRC}${GL_IMPLEM}/extensions/libglx.a \
			/usr/X11R6/lib/modules/extensions/libglx.a
	fi

	#setup the includes
	for x in gl.h glx.h glxtokens.h
	do
		if [ -e /usr/X11R6/include/GL/${x} ]
		then
			rm -f /usr/X11R6/include/GL/${x}
		fi
		ln -sf ${OPENGL_SRC}${GL_IMPLEM}/include/${x} \
			/usr/X11R6/include/GL/${x}
	done

	eend 0
fi


# vim:ts=4