GraphicsEnv is separated from libui
GraphicsEnv class is separated from libui in order to make libui VNDK.
The class is then built as a standalone library named
'libgraphicsenv.so'. Clients that were using the GraphicsEnv class are
also updated to reference the new library.
Bug: 38097618
Test: sailfish builds and boots
Change-Id: I4c35fdff0e92453b98ea21136ef0f99fab01b6f8
Merged-In: I4c35fdff0e92453b98ea21136ef0f99fab01b6f8
diff --git a/libs/graphicsenv/GraphicsEnv.cpp b/libs/graphicsenv/GraphicsEnv.cpp
new file mode 100644
index 0000000..39b5829
--- /dev/null
+++ b/libs/graphicsenv/GraphicsEnv.cpp
@@ -0,0 +1,72 @@
+/*
+ * 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 <graphicsenv/GraphicsEnv.h>
+
+#include <mutex>
+
+#include <log/log.h>
+#include <nativeloader/dlext_namespaces.h>
+
+// TODO(b/37049319) Get this from a header once one exists
+extern "C" {
+ android_namespace_t* android_get_exported_namespace(const char*);
+}
+
+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;
+}
+
+android_namespace_t* GraphicsEnv::getDriverNamespace() {
+ static std::once_flag once;
+ std::call_once(once, [this]() {
+ if (mDriverPath.empty())
+ return;
+ // If the sphal namespace isn't configured for a device, don't support updatable drivers.
+ // We need a parent namespace to inherit the default search path from.
+ auto sphalNamespace = android_get_exported_namespace("sphal");
+ if (!sphalNamespace) return;
+ mDriverNamespace = android_create_namespace("gfx driver",
+ nullptr, // ld_library_path
+ mDriverPath.c_str(), // default_library_path
+ ANDROID_NAMESPACE_TYPE_SHARED |
+ ANDROID_NAMESPACE_TYPE_ISOLATED,
+ nullptr, // permitted_when_isolated_path
+ sphalNamespace);
+ });
+ return mDriverNamespace;
+}
+
+} // namespace android
+
+extern "C" android_namespace_t* android_getDriverNamespace() {
+ return android::GraphicsEnv::getInstance().getDriverNamespace();
+}