[Memory] Android memory mapping

src/xenia/base/platform_android.h

@@ -0,0 +1,44 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2020 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_BASE_PLATFORM_ANDROID_H_
+#define XENIA_BASE_PLATFORM_ANDROID_H_
+
+// NOTE: if you're including this file it means you are explicitly depending
+// on Android-specific headers. This is bad for portability and should be
+// avoided!
+
+#include <android/native_activity.h>
+#include <cstddef>
+#include <cstdint>
+
+namespace xe {
+namespace platform {
+namespace android {
+
+// Must be called in onCreate of the first activity.
+void Initialize(const ANativeActivity* activity);
+
+// Returns the device API level - if not initialized, will return the minimum
+// level supported by Xenia.
+int32_t api_level();
+
+// Android API functions added after the minimum supported API version.
+struct ApiFunctions {
+  struct {
+    int (*ASharedMemory_create)(const char* name, size_t size);
+  } api_26;
+};
+const ApiFunctions& api_functions();
+
+}  // namespace android
+}  // namespace platform
+}  // namespace xe
+
+#endif  // XENIA_BASE_PLATFORM_ANDROID_H_