add DeviceInfo
This reverts commit 096895550b9d5430d7a001d491566decf4f9791b.
Change-Id: Ib2ed1e96d8f7f88302f5e27fe735687194553104
diff --git a/libs/hwui/DeviceInfo.h b/libs/hwui/DeviceInfo.h
new file mode 100644
index 0000000..f576a4f
--- /dev/null
+++ b/libs/hwui/DeviceInfo.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2015 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.
+ */
+#ifndef DEVICEINFO_H
+#define DEVICEINFO_H
+
+#include "Extensions.h"
+#include "utils/Macros.h"
+
+namespace android {
+namespace uirenderer {
+
+class DeviceInfo {
+ PREVENT_COPY_AND_ASSIGN(DeviceInfo);
+public:
+ // returns nullptr if DeviceInfo is not initialized yet
+ // Note this does not have a memory fence so it's up to the caller
+ // to use one if required. Normally this should not be necessary
+ static const DeviceInfo* get();
+
+ // only call this after GL has been initialized, or at any point if compiled
+ // with HWUI_NULL_GPU
+ static void initialize();
+
+ const Extensions& extensions() const { return mExtensions; }
+
+ int maxTextureSize() const { return mMaxTextureSize; }
+
+private:
+ DeviceInfo() {}
+ ~DeviceInfo() {}
+
+ void load();
+
+ Extensions mExtensions;
+ int mMaxTextureSize;
+};
+
+} /* namespace uirenderer */
+} /* namespace android */
+
+#endif /* DEVICEINFO_H */