MoonWorksImGuiExample/lib/ImGui.NET/ImVector.cs

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2022-03-04 01:20:00 +00:00
using System;
using System.Runtime.CompilerServices;
namespace ImGuiNET
{
public unsafe struct ImVector
{
public readonly int Size;
public readonly int Capacity;
public readonly IntPtr Data;
public ref T Ref<T>(int index)
{
return ref Unsafe.AsRef<T>((byte*)Data + index * Unsafe.SizeOf<T>());
}
public IntPtr Address<T>(int index)
{
return (IntPtr)((byte*)Data + index * Unsafe.SizeOf<T>());
}
}
public unsafe struct ImVector<T>
{
public readonly int Size;
public readonly int Capacity;
public readonly IntPtr Data;
public ImVector(ImVector vector)
{
Size = vector.Size;
Capacity = vector.Capacity;
Data = vector.Data;
}
public ImVector(int size, int capacity, IntPtr data)
{
Size = size;
Capacity = capacity;
Data = data;
}
public ref T this[int index] => ref Unsafe.AsRef<T>((byte*)Data + index * Unsafe.SizeOf<T>());
}
public unsafe struct ImPtrVector<T>
{
public readonly int Size;
public readonly int Capacity;
public readonly IntPtr Data;
private readonly int _stride;
public ImPtrVector(ImVector vector, int stride)
: this(vector.Size, vector.Capacity, vector.Data, stride)
{ }
public ImPtrVector(int size, int capacity, IntPtr data, int stride)
{
Size = size;
Capacity = capacity;
Data = data;
_stride = stride;
}
public T this[int index]
{
get
{
byte* address = (byte*)Data + index * _stride;
T ret = Unsafe.Read<T>(&address);
return ret;
}
}
}
}