anx.framework/ANX.Framework/NonXNA/ResourceTracker/GraphicsResourceTracker.cs

#region Using Statements
using System;
using System.Collections.Generic;
using ANX.Framework.Graphics;

#endregion

#region License

//
// This file is part of the ANX.Framework created by the "ANX.Framework developer group".
//
// This file is released under the Ms-PL license.
//
//
//
// Microsoft Public License (Ms-PL)
//
// This license governs use of the accompanying software. If you use the software, you accept this license. 
// If you do not accept the license, do not use the software.
//
// 1.Definitions
//   The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning 
//   here as under U.S. copyright law.
//   A "contribution" is the original software, or any additions or changes to the software.
//   A "contributor" is any person that distributes its contribution under this license.
//   "Licensed patents" are a contributor's patent claims that read directly on its contribution.
//
// 2.Grant of Rights
//   (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations 
//       in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to 
//       reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution
//       or any derivative works that you create.
//   (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in 
//       section 3, each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed
//       patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution 
//       in the software or derivative works of the contribution in the software.
//
// 3.Conditions and Limitations
//   (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
//   (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, your 
//       patent license from such contributor to the software ends automatically.
//   (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution 
//       notices that are present in the software.
//   (D) If you distribute any portion of the software in source code form, you may do so only under this license by including
//       a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or 
//       object code form, you may only do so under a license that complies with this license.
//   (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees,
//       or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the
//       extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a 
//       particular purpose and non-infringement.

#endregion // License

namespace ANX.Framework.NonXNA
{
    public class GraphicsResourceTracker
    {
        #region Private members
        private static GraphicsResourceTracker instance;
        private static List<GraphicsResource> trackedGraphicsResources;

        #endregion // Private members

        static GraphicsResourceTracker()
        {
            trackedGraphicsResources = new List<GraphicsResource>();
        }

        //~GraphicsResourceTracker()
        //{
        //    if (trackedGraphicsResources.Count > 0)
        //    {
        //        throw new Exception("The GraphicsResourceTracker is going to be destroyed but is still tracking some objects.");
        //    }
        //}

        public static GraphicsResourceTracker Instance
        {
            get
            {
                if (instance == null)
                {
                    instance = new GraphicsResourceTracker();
                }

                return instance;
            }
        }

        public void UpdateGraphicsDeviceReference(GraphicsDevice newGraphicsDevice)
        {
            foreach (GraphicsResource resource in trackedGraphicsResources)
            {
                resource.GraphicsDevice = newGraphicsDevice;
                resource.GraphicsDevice.NativeDevice = newGraphicsDevice.NativeDevice;
            }
        }

        public void RegisterTrackedObject(GraphicsResource graphicsResource)
        {
            if (!trackedGraphicsResources.Contains(graphicsResource))
            {
                trackedGraphicsResources.Add(graphicsResource);
            }
        }

        public void UnregisterTrackedObject(GraphicsResource graphicsResource)
        {
            trackedGraphicsResources.Remove(graphicsResource);
        }
    }
}