--- /dev/null
+#!/bin/sh
+
+# Copyright 2014 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+set -e
+
+export LANG=C
+export LC_ALL=C
+
+PROGDIR=$(dirname "$0")
+PROGNAME=$(basename "$0")
+
+fatal () {
+ echo "ERROR: $@"
+ exit 1
+}
+
+ANBOX_DIR="$PWD"
+
+OPT_ANBOX_DIR=
+OPT_EMUGEN=
+OPT_HELP=
+
+for OPT; do
+ OPTARG=$(expr "x$OPT" : "x[^=]*=\\(.*\\)" || true)
+ case $OPT in
+ --help|-h|-\?)
+ OPT_HELP=true
+ ;;
+ --anbox-dir=*)
+ OPT_ANBOX_DIR=$OPTARG
+ ;;
+ --emugen=*)
+ OPT_EMUGEN=$OPTARG
+ ;;
+ -*)
+ fatal "Invalid option '$OPT', see --help."
+ ;;
+ *)
+ fatal "This script doesn't take arguments, see --help."
+ ;;
+ esac
+done
+
+if [ "$OPT_HELP" ]; then
+ cat <<EOF
+Usage: $PROGNAME [options]
+
+Update the sources of the GPU emulation encoder and decoder, after an update
+to the 'emugen' tool.
+
+Valid options (defaults are in brackets):
+ --help|-h|-? Print this help.
+ --anbox-dir=<dir> Specify top-level Anbox directory [$ANBOX_DIR].
+ --emugen=<program> Emugen program path, if not in path.
+EOF
+ exit 0
+fi
+
+EMUGEN=
+if [ "$OPT_EMUGEN" ]; then
+ EMUGEN=$OPT_EMUGEN
+ if [ ! -f "$EMUGEN" ]; then
+ fatal "Missing emugen binary: $EMUGEN"
+ fi
+else
+ EMUGEN=$PROGDIR/../../../objs/build/intermediates64/emugen/emugen
+ if [ ! -f "$EMUGEN" ]; then
+ fatal "Missing emugen binary: $EMUGEN, please build it or use --emugen=<program>"
+ fi
+ echo "Auto-config: --emugen=$EMUGEN"
+fi
+
+if [ "$OPT_ANBOX_DIR" ]; then
+ ANBOX_DIR=$OPT_ANBOX_DIR
+else
+ echo "Auto-config: --anbox-dir=$ANBOX_DIR"
+fi
+if [ ! -d "$ANBOX_DIR/src/anbox" ]; then
+ fatal "Not an Anbox directory: $ANBOX_DIR"
+fi
+
+ANBOX_DIR=$(cd "$ANBOX_DIR" && pwd -P)
+
+# Find the sources for the encoder:
+ENCODER_TOP_DIR=$ANBOX_DIR/android/opengl/system
+DECODER_TOP_DIR=$ANBOX_DIR/external/android-emugl/host/libs
+
+if [ ! -d "$ENCODER_TOP_DIR" ]; then
+ fatal "Missing encoder source directory: $ENCODER_TOP_DIR"
+fi
+if [ ! -d "$DECODER_TOP_DIR" ]; then
+ fatal "Missing decoder source directory: $DECODER_TOP_DIR"
+fi
+
+# GLESv1 encoder
+GLESv1_INPUT_DIR=$DECODER_TOP_DIR/GLESv1_dec
+GLESv2_INPUT_DIR=$DECODER_TOP_DIR/GLESv2_dec
+RENDERCONTROL_INPUT_DIR=$DECODER_TOP_DIR/renderControl_dec
+
+# The encoder has prefix GL while decoder has GLES
+cp -f $DECODER_TOP_DIR/GLESv1_dec/gles1.attrib $DECODER_TOP_DIR/GLESv1_dec/gl.attrib
+cp -f $DECODER_TOP_DIR/GLESv1_dec/gles1.in $DECODER_TOP_DIR/GLESv1_dec/gl.in
+cp -f $DECODER_TOP_DIR/GLESv1_dec/gles1.types $DECODER_TOP_DIR/GLESv1_dec/gl.types
+
+cp -f $DECODER_TOP_DIR/GLESv2_dec/gles2.attrib $DECODER_TOP_DIR/GLESv2_dec/gl2.attrib
+cp -f $DECODER_TOP_DIR/GLESv2_dec/gles2.in $DECODER_TOP_DIR/GLESv2_dec/gl2.in
+cp -f $DECODER_TOP_DIR/GLESv2_dec/gles2.types $DECODER_TOP_DIR/GLESv2_dec/gl2.types
+
+$EMUGEN -i $DECODER_TOP_DIR/GLESv1_dec -E $ENCODER_TOP_DIR/GLESv1_enc gl
+$EMUGEN -i $DECODER_TOP_DIR/GLESv2_dec -E $ENCODER_TOP_DIR/GLESv2_enc gl2
+$EMUGEN -i $DECODER_TOP_DIR/renderControl_dec -E $ENCODER_TOP_DIR/renderControl_enc renderControl
+
+rm $DECODER_TOP_DIR/GLESv1_dec/gl.attrib
+rm $DECODER_TOP_DIR/GLESv1_dec/gl.in
+rm $DECODER_TOP_DIR/GLESv1_dec/gl.types
+
+rm $DECODER_TOP_DIR/GLESv2_dec/gl2.attrib
+rm $DECODER_TOP_DIR/GLESv2_dec/gl2.in
+rm $DECODER_TOP_DIR/GLESv2_dec/gl2.types
+
+echo "Done, see $ENCODER_TOP_DIR"
+exit 0