Initial work

Ryujinx.Graphics.Gpu/State/VertexBufferState.cs

@@ -0,0 +1,19 @@
+namespace Ryujinx.Graphics.Gpu.State
+{
+    struct VertexBufferState
+    {
+        public uint  Control;
+        public GpuVa Address;
+        public int   Divisor;
+
+        public int UnpackStride()
+        {
+            return (int)(Control & 0xfff);
+        }
+
+        public bool UnpackEnable()
+        {
+            return (Control & (1 << 12)) != 0;
+        }
+    }
+}