#!/bin/ksh93
#
# Based on mesa_vendor_select from Solaris 11.3 with the following copyright:
#
# Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#
#

LINKDIR=/system/volatile/opengl
MESA_SELECT=/lib/opengl/ogl_select/mesa_vendor_select

PATH=/usr/bin:/usr/sbin

ARCH="$(uname -p)"

case "${ARCH}" in
    i386)			;;
    *)		exit 1		;; # Unsupported architecture
esac

# We need Mesa for the parts we do not supply.
if [[ ! -x "${MESA_SELECT}" ]]; then
	exit 0
fi

if [[ $# -eq 1 ]] && [[ $1 == "identify" ]] ; then
	# Probe time.  Check whether this system supports pass-through.
	# If so, emit an identity string attaching us to the current
	# console identifier.
	if /usr/bin/VBoxClient --check3d ; then
	    print "$(constype) vbox"
	fi
	return 0
fi

# Make a file link. $1 is the source path, $2 is the target path
function make_link {
	if [[ $# != 2 ]]; then
		return
	fi
	if [[ -h $2 ]]; then
		rm -f $2
	fi
	ln -sf $1 $2
}

# Start by setting up Mesa, as we use that for everything except the user
# libraries.
${MESA_SELECT}

# User libraries
if [[ -f ${LINKDIR}/lib/libGL.so.1 ]] && [[ -f /usr/lib/VBoxOGL.so ]] ; then
	make_link /usr/lib/VBoxOGL.so ${LINKDIR}/lib/libGL.so.1
fi
if [[ -f ${LINKDIR}/lib/i386/libGL.so.1 ]] && \
	[[ -f /usr/lib/i386/VBoxOGL.so ]] ; then
	make_link /usr/lib/i386/VBoxOGL.so ${LINKDIR}/lib/i386/libGL.so.1
fi
if [[ -f ${LINKDIR}/lib/amd64/libGL.so.1 ]] && \
	[[ -f /usr/lib/amd64/VBoxOGL.so ]] ; then
	make_link /usr/lib/amd64/VBoxOGL.so ${LINKDIR}/lib/amd64/libGL.so.1
fi

return 0