38 lines
987 B
C#
38 lines
987 B
C#
using System;
|
|
using System.Collections.Generic;
|
|
using UnityEngine.Pool;
|
|
|
|
namespace UnityEngine.Experimental.Rendering
|
|
{
|
|
internal class XRLayoutStack : IDisposable
|
|
{
|
|
readonly Stack<XRLayout> m_Stack = new ();
|
|
|
|
public XRLayout New()
|
|
{
|
|
GenericPool<XRLayout>.Get(out var layout);
|
|
m_Stack.Push(layout);
|
|
return layout;
|
|
}
|
|
|
|
public bool hasLayout => m_Stack.Count > 0;
|
|
|
|
public XRLayout top => m_Stack.Peek();
|
|
|
|
public void Release()
|
|
{
|
|
if (!m_Stack.TryPop(out var value))
|
|
throw new InvalidOperationException($"Calling {nameof(Release)} without calling {nameof(New)} first.");
|
|
|
|
value.Clear();
|
|
GenericPool<XRLayout>.Release(value);
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
if (m_Stack.Count != 0)
|
|
throw new Exception($"Stack is not empty. Did you skip a call to {nameof(Release)}?");
|
|
}
|
|
}
|
|
}
|