cover the license

app/src/main/java/com/geode/launcher/ExplicitGLSurfaceView.java

@@ -1,3 +1,22 @@
+/*
+ * Copyright (C) 2008 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.
+ *
+ * Original code from <https://android.googlesource.com/platform/frameworks/base/+/1cdfff555f4a21f71ccc978290e2e212e2f8b168/opengl/java/android/opengl/GLSurfaceView.java>
+ * Modified to support EGL14 and additional frame pacing (mNativeFramePacing).
+ */
+
 package com.geode.launcher;
 
 import android.content.Context;