Feedback Feature request: add AndroidJNI.GetDirectBufferAddress

Hi,

Android version of my game has large assets in StreamingAssets and needs fast random access to them. It turns out to be difficult to achieve since StreamingAssets aren't exposed as regular files on Android: https://docs.unity3d.com/Manual/StreamingAssets.html

Unity suggested workaround is UnityWebRequest, but it's not designed for random access, not even with a custom downloader.

I decided to just memory-map the assets in Java code and expose them to C# by utilizing code akin to https://github.com/syaringan357/And...in/java/com/zwp/mobilefacenet/MyUtil.java#L79

However, lack of AndroidJNI.GetDirectBufferAddress() makes it more complicated. Without it the only thing I have is a java.nio.Buffer object: GetDirectBufferAddress() would be the final step of getting a raw pointer out of it I could use without Java call overhead.

As a workaround I'll just call JNIEnv::GetDirectBufferAddress() in C++ code instead, but it would be good if that step didn't require native code in a future Unity version.

 

Happy to hear that. (I also got my C++ version working in the meantime.)