Initial work

Ryujinx.Graphics.Gpu/State/VertexAttribState.cs

@@ -0,0 +1,22 @@
+namespace Ryujinx.Graphics.Gpu.State
+{
+    struct VertexAttribState
+    {
+        public uint Attribute;
+
+        public int UnpackBufferIndex()
+        {
+            return (int)(Attribute & 0x1f);
+        }
+
+        public int UnpackOffset()
+        {
+            return (int)((Attribute >> 7) & 0x3fff);
+        }
+
+        public uint UnpackFormat()
+        {
+            return Attribute & 0x3fe00000;
+        }
+    }
+}