feat: GSS2.Test - UI+DI, Vulkan render test

GSS2.Vulkan/ByteString.cs

@@ -0,0 +1,68 @@
+// Основан на примере GpuInterop Avalonia
+// https://github.com/AvaloniaUI/Avalonia/blob/5f3dbae22244e830b464fc680c6c28ca124be41a/samples/GpuInterop/VulkanDemo/ByteString.cs
+
+using System.Runtime.InteropServices;
+
+namespace GSS2.Vulkan;
+
+unsafe sealed class ByteString : IDisposable
+{
+    private bool _disposedValue;
+    private readonly byte* _pointer;
+
+    public ByteString(string s)
+    {
+        _pointer = (byte*)Marshal.StringToHGlobalAnsi(s);
+    }
+
+    private void Dispose(bool disposing)
+    {
+        if (!_disposedValue)
+        {
+            Marshal.FreeHGlobal(new IntPtr(_pointer));
+            _disposedValue = true;
+        }
+    }
+    ~ByteString() => Dispose(disposing: false);
+    public void Dispose()
+    {
+        Dispose(disposing: true);
+        GC.SuppressFinalize(this);
+    }
+
+    public static implicit operator byte*(ByteString obj) => obj._pointer;
+}
+
+unsafe sealed class ByteStringList : IDisposable
+{
+    private bool _disposedValue;
+    private readonly List<ByteString> _list;
+    private readonly byte** _pointer;
+
+    public int Count => _list.Count;
+
+    public ByteStringList(IEnumerable<string> list)
+    {
+        _list = list.Select(x => new ByteString(x)).ToList();
+        _pointer = (byte**)Marshal.AllocHGlobal(IntPtr.Size * _list.Count + 1);
+        for (var c = 0; c < _list.Count; c++)
+            _pointer[c] = (byte*)_list[c];
+    }
+
+    private void Dispose(bool disposing)
+    {
+        if (!_disposedValue)
+        {
+            Marshal.FreeHGlobal(new IntPtr(_pointer));
+            _disposedValue = true;
+        }
+    }
+    ~ByteStringList() => Dispose(disposing: false);
+    public void Dispose()
+    {
+        Dispose(disposing: true);
+        GC.SuppressFinalize(this);
+    }
+
+    public static implicit operator byte**(ByteStringList obj) => obj._pointer;
+}