Reimplement Bounding Box calculation using the software renderer.

Source/Core/VideoCommon/BoundingBox.h

@@ -0,0 +1,41 @@
+// Copyright 2014 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "VideoCommon/VertexLoader.h"
+
+// Bounding Box manager
+
+namespace BoundingBox
+{
+
+// Determines if bounding box is active
+extern bool active;
+
+// Bounding box current coordinates
+extern u16 coords[4];
+
+enum
+{
+	LEFT   = 0,
+	RIGHT  = 1,
+	TOP    = 2,
+	BOTTOM = 3
+};
+
+// Current position matrix index
+extern u8 posMtxIdx;
+
+// Texture matrix indexes
+extern u8 texMtxIdx[8];
+
+void LOADERDECL SetVertexBufferPosition();
+void LOADERDECL Update();
+void Prepare(const VAT & vat, int primitive, const TVtxDesc & vtxDesc, const PortableVertexDeclaration & vtxDecl);
+
+// Save state
+void DoState(PointerWrap &p);
+
+}; // end of namespace BoundingBox