Add ANativeWindow API for directly drawing to the surface bits.

Also other cleanup and fixes:

- We now properly set the default window format to 565.
- New APIs to set the window format and flags from native code.
- Tweaked glue for simpler handling of the "destroy" message.
- Um, other stuff.

Change-Id: Id7790a21a2fa9a19b91854d225324a7c1e7c6ade
diff --git a/native/android/native_activity.cpp b/native/android/native_activity.cpp
new file mode 100644
index 0000000..509cc33
--- /dev/null
+++ b/native/android/native_activity.cpp
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#define LOG_TAG "native_activity"
+#include <utils/Log.h>
+
+#include <android_runtime/android_app_NativeActivity.h>
+
+using namespace android;
+
+void ANativeActivity_setWindowFormat(ANativeActivity* activity, int32_t format) {
+	android_NativeActivity_setWindowFormat(activity, format);
+}
+
+void ANativeActivity_setWindowFlags(ANativeActivity* activity,
+		uint32_t addFlags, uint32_t removeFlags) {
+	android_NativeActivity_setWindowFlags(activity, addFlags, addFlags|removeFlags);
+}