From 1876b346fea647e8284a66bb6d62c38801035cff Mon Sep 17 00:00:00 2001
From: gdk <gab.dark.100@gmail.com>
Date: Sun, 13 Oct 2019 03:02:07 -0300
Subject: Initial work

---
 Ryujinx.Graphics.Gpu/Image/AutoDeleteCache.cs | 62 +++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Ryujinx.Graphics.Gpu/Image/AutoDeleteCache.cs

(limited to 'Ryujinx.Graphics.Gpu/Image/AutoDeleteCache.cs')

diff --git a/Ryujinx.Graphics.Gpu/Image/AutoDeleteCache.cs b/Ryujinx.Graphics.Gpu/Image/AutoDeleteCache.cs
new file mode 100644
index 00000000..33ed7881
--- /dev/null
+++ b/Ryujinx.Graphics.Gpu/Image/AutoDeleteCache.cs
@@ -0,0 +1,62 @@
+using System.Collections;
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Gpu.Image
+{
+    class AutoDeleteCache : IEnumerable<Texture>
+    {
+        private const int MaxCapacity = 2048;
+
+        private LinkedList<Texture> _textures;
+
+        public AutoDeleteCache()
+        {
+            _textures = new LinkedList<Texture>();
+        }
+
+        public void Add(Texture texture)
+        {
+            texture.IncrementReferenceCount();
+
+            texture.CacheNode = _textures.AddLast(texture);
+
+            if (_textures.Count > MaxCapacity)
+            {
+                Texture oldestTexture = _textures.First.Value;
+
+                _textures.RemoveFirst();
+
+                oldestTexture.DecrementReferenceCount();
+
+                oldestTexture.CacheNode = null;
+            }
+        }
+
+        public void Lift(Texture texture)
+        {
+            if (texture.CacheNode != null)
+            {
+                if (texture.CacheNode != _textures.Last)
+                {
+                    _textures.Remove(texture.CacheNode);
+
+                    texture.CacheNode = _textures.AddLast(texture);
+                }
+            }
+            else
+            {
+                Add(texture);
+            }
+        }
+
+        public IEnumerator<Texture> GetEnumerator()
+        {
+            return _textures.GetEnumerator();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return _textures.GetEnumerator();
+        }
+    }
+}
\ No newline at end of file
-- 
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