summaryrefslogtreecommitdiff
blob: 99442090bfd7e6f2e203295b8c71eeffc154ab1a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
#!/bin/bash
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/x11-base/opengl-update/files/opengl-update-1.7.2,v 1.2 2004/07/15 00:27:54 agriffis Exp $
# Author:  Martin Schlemmer <azarah@gentoo.org>
# Further modifications by Donnie Berkholz <spyderous@gentoo.org>

. /etc/init.d/functions.sh

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

usage() {
# In addition to the below function, there are two extra uses for this.
#
# They aren't in the printed help message because they're intended
# 	for developer use.
# 1) --use-old $NEW_IMPLEM will switch to the new implementation only if
# 	no old setup existed (i.e., X has never been installed)
# 2) --get-implementation will return the implementation

cat << FOO
usage: ${0##*/} <GL implementation>

note:  
       This utility switches between OpenGL implementations.  Currently there
       are five supported implementations, "xorg-x11" "xfree" "nvidia" "ati"
       and "mtx", the implementations for X.org, XFree86, nVidia, ATi
       and Matrox drivers respectively.

examples:
       ${0##*/} xorg-x11
       This will setup things to use libGL.so from X.org.

       ${0##*/} nvidia
       This will setup things to use libGL.so from the nVidia drivers.
	   
FOO
	exit 1
}

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

GL_IMPLEM=""

# Discover GL implementation if it exists
get_implem() {
	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
}

# Return current GL implementation
if [ "$1" = "--get-implementation" ]
then
	get_implem
	
	if [ -n "${GL_IMPLEM}" ]
	then
		echo "${GL_IMPLEM}"
	fi

	if [ -z "${GL_IMPLEM}" ]
	then
		exit 2
	fi

	exit 1
fi

# Only use specified implementation if it is not already selected.
if [ "$1" = "--use-old" ]
then
	shift

	get_implem
	
	if [ -z "${GL_IMPLEM}" ]
	then
		GL_IMPLEM="$1"
	fi
else
	GL_IMPLEM="$1"
fi

if [ ! -d /usr/lib/opengl/${GL_IMPLEM} ]
then
	usage
else
	ebegin "Switching to ${GL_IMPLEM} OpenGL interface"

	#setup the $LDPATH
	echo "LDPATH=/usr/lib/opengl/${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="$(readlink /usr/lib/opengl/${GL_IMPLEM}/lib/libGL.so)"
	ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/${realname} \
		/usr/lib/libGL.so
	ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/${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="$(readlink /usr/lib/opengl/${GL_IMPLEM}/lib/libGL.so)"
	ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/${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 /usr/lib/opengl/${GL_IMPLEM}/lib/libGLcore.so ]
	then
		realname="$(readlink /usr/lib/opengl/${GL_IMPLEM}/lib/libGLcore.so)"
		ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/${realname} \
			/usr/lib/libGLcore.so
		ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/${realname} \
			/usr/lib/libGLcore.so.1
	fi

	#setup the /usr/lib/libGL.la symlink
	if [ -e /usr/lib/libGL.la ]
	then
		rm -f /usr/lib/libGL.la
	fi
	if [ -e /usr/lib/opengl/${GL_IMPLEM}/lib/libGL.la ]
	then
		ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/libGL.la \
			/usr/lib/libGL.la
	fi

	#fix libtool archives (#48297)
	CURDIR="$(pwd)"
	cd /usr/lib
	if [ "`grep -l /usr/lib/opengl *.la`" ]
	then
		sed -i 's:/usr/lib/opengl/[^/]*/lib/libGL.la:/usr/lib/libGL.la:' \
			`grep -l /usr/lib/opengl *.la`
	fi
	cd ${CURDIR}

	#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 /usr/lib/opengl/${GL_IMPLEM}/extensions/libglx.so ]
	then
		ln -sf /usr/lib/opengl/${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 /usr/lib/opengl/${GL_IMPLEM}/extensions/libglx.a ]
	then
		ln -sf /usr/lib/opengl/${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 /usr/lib/opengl/${GL_IMPLEM}/include/${x} \
			/usr/X11R6/include/GL/${x}
	done

	eend 0
fi


# vim:ts=4