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#!/system/xbin/bash
#
# Copyright (C) 2017 Jeremy Rand <jeremy@veclabs.net>
# Partially based on code by Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> and Filippo Fil Bergamo
#
# This file is part of "Replicant Renderer Switcher", a set of shell scripts to switch between
# the Android Software Renderer and the llvmpipe renderer in Replicant.
#
# Replicant Renderer Switcher is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Replicant Renderer Switcher is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
set -euf -o pipefail
grep -q "ro.libagl=0" /system/build.prop && renderer="llvmpipe" || renderer="android"
if [ "${renderer}" == "android" ]
then
echo "Android software renderer is already enabled!"
exit 1
fi
echo "Remounting system partition as writable..."
mount -o rw,remount /system
echo "Enabling Android software renderer..."
sed "s/ro.libagl=0/ro.libagl=1/" -i /system/build.prop
echo "Syncing filesystem..."
sync
sync
echo "Remounting system partition as read-only..."
mount -o ro,remount /system
echo "Syncing filesystem..."
sync
sync
# https://android.stackexchange.com/a/139139
echo "Android software renderer will be enabled after we reboot now..."
am start -a android.intent.action.REBOOT
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