Add GraphicsEnv to libgui
This singleton class stores information provided by the framework and
makes it available to EGL/GLES/Vulkan loaders. It will eventually
replace vulkan::LoaderData and possibly the egl blob cache directory
storage.
Bug: 33531483
Test: various apps w/ and w/o driver package installed
Change-Id: If8b84fd38428f1cc9fcee8ffc25eb90cd87cedb4
diff --git a/include/gui/GraphicsEnv.h b/include/gui/GraphicsEnv.h
new file mode 100644
index 0000000..9f26c14
--- /dev/null
+++ b/include/gui/GraphicsEnv.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2017 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 ANDROID_GUI_GRAPHICS_ENV_H
+#define ANDROID_GUI_GRAPHICS_ENV_H 1
+
+#include <string>
+
+namespace android {
+
+class GraphicsEnv {
+public:
+ static GraphicsEnv& getInstance();
+
+ // Set a search path for loading graphics drivers. The path is a list of
+ // directories separated by ':'. A directory can be contained in a zip file
+ // (drivers must be stored uncompressed and page aligned); such elements
+ // in the search path must have a '!' after the zip filename, e.g.
+ // /data/app/com.example.driver/base.apk!/lib/arm64-v8a
+ void setDriverPath(const std::string path);
+
+private:
+ GraphicsEnv() = default;
+ std::string mDriverPath;
+};
+
+} // namespace android
+
+#endif // ANDROID_GUI_GRAPHICS_ENV_H