alysbrooks-public » games » isometric-park-fna

Location: alysbrooks-public/games/isometric-park-fna/ImGui.NET/RangeAccessor.cs

Show More
Commit Description:
Merge in m5-tiles-and-trees! ?
Commit Description:
Merge in m5-tiles-and-trees! ?
References:
r682:ead2604f189e merge default
File last commit:
r16:2e10c6ae1d70 default
Show/Diff file:
Action:
ImGui.NET/RangeAccessor.cs
68 lines | 1.8 KiB | text/x-csharp | CSharpLexer
History | Annotation | Raw | Download
using System;
using System.Runtime.CompilerServices;
using System.Text;
namespace ImGuiNET
{
public unsafe struct RangeAccessor<T> where T : struct
{
private static readonly int s_sizeOfT = Unsafe.SizeOf<T>();
public readonly void* Data;
public readonly int Count;
public RangeAccessor(IntPtr data, int count) : this(data.ToPointer(), count) { }
public RangeAccessor(void* data, int count)
{
Data = data;
Count = count;
}
public ref T this[int index]
{
get
{
if (index < 0 || index >= Count)
{
throw new IndexOutOfRangeException();
}
return ref Unsafe.AsRef<T>((byte*)Data + s_sizeOfT * index);
}
}
}
public unsafe struct RangePtrAccessor<T> where T : struct
{
public readonly void* Data;
public readonly int Count;
public RangePtrAccessor(IntPtr data, int count) : this(data.ToPointer(), count) { }
public RangePtrAccessor(void* data, int count)
{
Data = data;
Count = count;
}
public T this[int index]
{
get
{
if (index < 0 || index >= Count)
{
throw new IndexOutOfRangeException();
}
return Unsafe.Read<T>((byte*)Data + sizeof(void*) * index);
}
}
}
public static class RangeAccessorExtensions
{
public static unsafe string GetStringASCII(this RangeAccessor<byte> stringAccessor)
{
return Encoding.ASCII.GetString((byte*)stringAccessor.Data, stringAccessor.Count);
}
}
}