1 files changed, 51 insertions, 0 deletions
diff --git a/display/renderer/device-files/llvmpipe.sh b/display/renderer/device-files/llvmpipe.sh
new file mode 100644
index 0000000..d40c4ec
--- /dev/null
+++ b/display/renderer/device-files/llvmpipe.sh
@@ -0,0 +1,51 @@
+#!/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}" == "llvmpipe" ]
+then
+    echo "llvmpipe is already enabled!"
+    exit 1
+fi
+
+echo "Remounting system partition as writable..."
+mount -o rw,remount /system
+
+echo "Enabling llvmpipe..."
+sed "s/ro.libagl=1/ro.libagl=0/" -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 "llvmpipe will be enabled after we reboot now..."
+am start -a android.intent.action.REBOOT