Initial work

Ryujinx.Graphics.Gpu/State/CopyBufferSwizzle.cs

@@ -0,0 +1,22 @@
+namespace Ryujinx.Graphics.Gpu.State
+{
+    struct CopyBufferSwizzle
+    {
+        public uint Swizzle;
+
+        public int UnpackComponentSize()
+        {
+            return (int)((Swizzle >> 16) & 3) + 1;
+        }
+
+        public int UnpackSrcComponentsCount()
+        {
+            return (int)((Swizzle >> 20) & 7) + 1;
+        }
+
+        public int UnpackDstComponentsCount()
+        {
+            return (int)((Swizzle >> 24) & 7) + 1;
+        }
+    }
+}