1 files changed, 54 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.Vulkan/CacheByRange.cs b/Ryujinx.Graphics.Vulkan/CacheByRange.cs
new file mode 100644
index 00000000..f3f503da
--- /dev/null
+++ b/Ryujinx.Graphics.Vulkan/CacheByRange.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Vulkan
+{
+    struct CacheByRange<T> where T : IDisposable
+    {
+        private Dictionary<ulong, T> _ranges;
+
+        public void Add(int offset, int size, T value)
+        {
+            EnsureInitialized();
+            _ranges.Add(PackRange(offset, size),  value);
+        }
+
+        public bool TryGetValue(int offset, int size, out T value)
+        {
+            EnsureInitialized();
+            return _ranges.TryGetValue(PackRange(offset, size), out value);
+        }
+
+        public void Clear()
+        {
+            if (_ranges != null)
+            {
+                foreach (T value in _ranges.Values)
+                {
+                    value.Dispose();
+                }
+
+                _ranges.Clear();
+                _ranges = null;
+            }
+        }
+
+        private void EnsureInitialized()
+        {
+            if (_ranges == null)
+            {
+                _ranges = new Dictionary<ulong, T>();
+            }
+        }
+
+        private static ulong PackRange(int offset, int size)
+        {
+            return (uint)offset | ((ulong)size << 32);
+        }
+
+        public void Dispose()
+        {
+            Clear();
+        }
+    }
+}