54 lines
1.2 KiB
C#
54 lines
1.2 KiB
C#
|
using System;
|
||
|
|
using System.Runtime.InteropServices;
|
||
|
|
using System.Text;
|
||
|
|
|
||
|
|
namespace UnityEngine.XR.ARCore
|
||
|
|
{
|
||
|
|
unsafe struct ArString : IDisposable
|
||
|
|
{
|
||
|
|
byte* m_Bytes;
|
||
|
|
|
||
|
|
public override string ToString() => m_Bytes == null
|
||
|
|
? string.Empty
|
||
|
|
: Marshal.PtrToStringAnsi(new IntPtr(m_Bytes));
|
||
|
|
|
||
|
|
public string ToString(Encoding encoding) => m_Bytes == null
|
||
|
|
? null
|
||
|
|
: encoding.GetString(m_Bytes, CalculateNullTerminatedByteCount());
|
||
|
|
|
||
|
|
public void Dispose()
|
||
|
|
{
|
||
|
|
if (m_Bytes != null)
|
||
|
|
{
|
||
|
|
Release(m_Bytes);
|
||
|
|
}
|
||
|
|
|
||
|
|
m_Bytes = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
public int CalculateNullTerminatedByteCount()
|
||
|
|
{
|
||
|
|
if (m_Bytes == null)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
var bytes = m_Bytes;
|
||
|
|
var byteCount = 0;
|
||
|
|
while (*bytes++ != 0)
|
||
|
|
{
|
||
|
|
byteCount++;
|
||
|
|
}
|
||
|
|
|
||
|
|
return byteCount;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if UNITY_ANDROID && !UNITY_EDITOR
|
||
|
|
[DllImport("arcore_sdk_c", EntryPoint = "ArString_release")]
|
||
|
|
static extern void Release(byte* str);
|
||
|
|
#else
|
||
|
|
static void Release(byte* str) { }
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|