Initial work

Ryujinx.Graphics.Shader/Decoders/OpCodeTexture.cs

@@ -0,0 +1,42 @@
+using Ryujinx.Graphics.Shader.Instructions;
+
+namespace Ryujinx.Graphics.Shader.Decoders
+{
+    class OpCodeTexture : OpCode
+    {
+        public Register Rd { get; }
+        public Register Ra { get; }
+        public Register Rb { get; }
+
+        public bool IsArray { get; }
+
+        public TextureDimensions Dimensions { get; }
+
+        public int ComponentMask { get; }
+
+        public int Immediate { get; }
+
+        public TextureLodMode LodMode { get; protected set; }
+
+        public bool HasOffset       { get; protected set; }
+        public bool HasDepthCompare { get; protected set; }
+        public bool IsMultisample   { get; protected set; }
+
+        public OpCodeTexture(InstEmitter emitter, ulong address, long opCode) : base(emitter, address, opCode)
+        {
+            Rd = new Register(opCode.Extract(0,  8), RegisterType.Gpr);
+            Ra = new Register(opCode.Extract(8,  8), RegisterType.Gpr);
+            Rb = new Register(opCode.Extract(20, 8), RegisterType.Gpr);
+
+            IsArray = opCode.Extract(28);
+
+            Dimensions = (TextureDimensions)opCode.Extract(29, 2);
+
+            ComponentMask = opCode.Extract(31, 4);
+
+            Immediate = opCode.Extract(36, 13);
+
+            LodMode = (TextureLodMode)opCode.Extract(55, 3);
+        }
+    }
+}