Added GetUnsafePtr to ReadOnlyUnsafeCollection

Misaki.HighPerformance.LowLevel/Buffer/MemoryBlock.cs

@@ -1,77 +0,0 @@
-using System.Runtime.InteropServices;
-
-namespace Misaki.HighPerformance.LowLevel.Buffer;
-
-/// <summary>
-/// Represents an allocated memory block with metadata.
-/// </summary>
-[StructLayout(LayoutKind.Sequential)]
-public readonly unsafe struct MemoryBlock
-{
-    /// <summary>
-    /// Pointer to the actual allocated memory.
-    /// </summary>
-    public void* Ptr
-    {
-        get;
-    }
-
-    /// <summary>
-    /// The heap from which the memory was allocated.
-    /// </summary>
-    public void* Heap
-    {
-        get;
-    }
-
-    /// <summary>
-    /// Size of the allocated memory in bytes.
-    /// </summary>
-    public nuint Size
-    {
-        get;
-    }
-
-    /// <summary>
-    /// Alignment of the allocated memory.
-    /// </summary>
-    public nuint Alignment
-    {
-        get;
-    }
-
-    /// <summary>
-    /// Indicates whether this memory block is valid.
-    /// </summary>
-    public readonly bool IsValid => Ptr != null && Size > 0;
-
-    /// <summary>
-    /// Creates a new MemoryBlock with the specified parameters.
-    /// </summary>
-    /// <param name="ptr">Pointer to the allocated memory.</param>
-    /// <param name="size">Size of the allocated memory.</param>
-    /// <param name="alignment">Alignment of the allocated memory.</param>
-    public MemoryBlock(void* ptr, void* heap, nuint size, nuint alignment)
-    {
-        Ptr = ptr;
-        Heap = heap;
-        Size = size;
-        Alignment = alignment;
-    }
-
-    /// <summary>
-    /// Creates an invalid MemoryBlock.
-    /// </summary>
-    public static MemoryBlock Invalid => new(null, null, 0, 0);
-
-    public Span<T> AsSpan<T>()
-        where T : unmanaged
-    {
-        if (!IsValid)
-        {
-            throw new InvalidOperationException("Cannot create span from invalid MemoryBlock.");
-        }
-
-        return new Span<T>(Ptr, (int)(Size / SizeOf<T>()));
-    }
-}