libandroidfw: Add new support for shared libraries
This adds support for shared resource libraries in the new
ResTable/AssetManager implementation.
The dynamic package map encoded in resources.arsc is parsed
and stored with LoadedArsc, and combined to form a resolved table
in AssetManager2.
Benchmarks show that this implementation is an order of magnitude
faster on angler-userdebug (make libandroidfw_benchmarks).
Test: libandroidfw_tests
Change-Id: I57c80248728b63b162bf8269ac9495b53c3e7fa0
diff --git a/libs/androidfw/Util.cpp b/libs/androidfw/Util.cpp
new file mode 100644
index 0000000..202bc8e
--- /dev/null
+++ b/libs/androidfw/Util.cpp
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#include "androidfw/Util.h"
+
+#include <string>
+
+#include "utils/ByteOrder.h"
+#include "utils/Unicode.h"
+
+#ifdef _WIN32
+#ifdef ERROR
+#undef ERROR
+#endif
+#endif
+
+namespace android {
+namespace util {
+
+void ReadUtf16StringFromDevice(const uint16_t* src, size_t len, std::string* out) {
+ char buf[5];
+ while (*src && len != 0) {
+ char16_t c = static_cast<char16_t>(dtohs(*src));
+ utf16_to_utf8(&c, 1, buf, sizeof(buf));
+ out->append(buf, strlen(buf));
+ ++src;
+ --len;
+ }
+}
+
+} // namespace util
+} // namespace android