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
Change-Id: I40c3952374badabea738a34a51db90bf197979b8
Merged-In: 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
diff --git a/libs/gui/Android.mk b/libs/gui/Android.mk
index 46feb1c..3dbe0e3 100644
--- a/libs/gui/Android.mk
+++ b/libs/gui/Android.mk
@@ -54,6 +54,7 @@
DisplayEventReceiver.cpp \
GLConsumer.cpp \
GraphicBufferAlloc.cpp \
+ GraphicsEnv.cpp \
GuiConfig.cpp \
IDisplayEventConnection.cpp \
IGraphicBufferAlloc.cpp \
diff --git a/libs/gui/GraphicsEnv.cpp b/libs/gui/GraphicsEnv.cpp
new file mode 100644
index 0000000..99b74bf
--- /dev/null
+++ b/libs/gui/GraphicsEnv.cpp
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+
+//#define LOG_NDEBUG 1
+#define LOG_TAG "GraphicsEnv"
+#include <gui/GraphicsEnv.h>
+
+#include <log/log.h>
+
+namespace android {
+
+/*static*/ GraphicsEnv& GraphicsEnv::getInstance() {
+ static GraphicsEnv env;
+ return env;
+}
+
+void GraphicsEnv::setDriverPath(const std::string path) {
+ if (!mDriverPath.empty()) {
+ ALOGV("ignoring attempt to change driver path from '%s' to '%s'",
+ mDriverPath.c_str(), path.c_str());
+ return;
+ }
+ ALOGV("setting driver path to '%s'", path.c_str());
+ mDriverPath = path;
+}
+
+} // namespace android
