NativeArray to IntPtr

I am obtaining a NativeArray using AsyncGPUReadbackRequest and would like to pass the data into a plugin expecting an IntPtr as input.

Is there a fast way to obtain a IntPtr from a NativeArray? Currently I am converting the NativeArray into a managed array which is very slow.

EDIT: Additional details, this is what I'm currently doing:

Code (CSharp):

1. byte[] textureData = asyncGpuMemoryReadRequest.GetData<byte>().ToArray();
2.  
3. unityScreenTexturePtr = Marshal.AllocHGlobal(textureData.Length);
4.  
5. Marshal.Copy(textureData, 0, unityScreenTexturePtr, textureData.Length);
6.  
7.  

 

Sample Code;

Code (CSharp):

1. using(var array = new NativeArray<byte>(114514, Allocator.TempJob))
2. {
3.     unsafe{
4.         var ptr = (IntPtr)Unity.Collections.LowLevel.Unsafe.UnsafeArrayUtility.GetUnsafePtr(array); // void* -> IntPtr explicit conversion.
5.         hoge_API_CALL(ptr);
6.     }
7. }

 

Thanks that works perfectly.

 

Hello. Is there any method to convert it back? IntPtr to NativeArray<byte>?

Thank you.

 

NativeArray<T> NativeArrayUnsafeUtility.ConvertExistingDataToNativeArray<T>(void* dataPointer, int length, Allocator allocator)