229 lines
8.5 KiB
C#
229 lines
8.5 KiB
C#
#region Using Statements
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using ANX.Framework.NonXNA;
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using System.Runtime.InteropServices;
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#endregion // Using Statements
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#region License
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//
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// This file is part of the ANX.Framework created by the "ANX.Framework developer group".
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//
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// This file is released under the Ms-PL license.
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//
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//
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//
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// Microsoft Public License (Ms-PL)
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//
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// This license governs use of the accompanying software. If you use the software, you accept this license.
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// If you do not accept the license, do not use the software.
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//
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// 1.Definitions
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// The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning
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// here as under U.S. copyright law.
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// A "contribution" is the original software, or any additions or changes to the software.
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// A "contributor" is any person that distributes its contribution under this license.
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// "Licensed patents" are a contributor's patent claims that read directly on its contribution.
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//
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// 2.Grant of Rights
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// (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations
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// in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to
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// reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution
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// or any derivative works that you create.
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// (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in
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// section 3, each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed
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// patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution
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// in the software or derivative works of the contribution in the software.
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//
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// 3.Conditions and Limitations
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// (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
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// (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, your
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// patent license from such contributor to the software ends automatically.
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// (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution
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// notices that are present in the software.
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// (D) If you distribute any portion of the software in source code form, you may do so only under this license by including
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// a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or
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// object code form, you may only do so under a license that complies with this license.
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// (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees,
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// or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the
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// extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a
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// particular purpose and non-infringement.
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#endregion // License
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namespace ANX.Framework.Graphics
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{
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public class IndexBuffer : GraphicsResource, IGraphicsResource
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{
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private int indexCount;
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private BufferUsage bufferUsage;
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private IndexElementSize indexElementSize;
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private INativeBuffer nativeIndexBuffer;
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public IndexBuffer(GraphicsDevice graphicsDevice, IndexElementSize indexElementSize, int indexCount, BufferUsage usage)
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: base(graphicsDevice)
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{
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this.indexElementSize = indexElementSize;
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this.indexCount = indexCount;
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this.bufferUsage = usage;
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base.GraphicsDevice.ResourceCreated += GraphicsDevice_ResourceCreated;
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base.GraphicsDevice.ResourceDestroyed += GraphicsDevice_ResourceDestroyed;
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CreateNativeBuffer();
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}
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public IndexBuffer(GraphicsDevice graphicsDevice, Type indexType, int indexCount, BufferUsage usage)
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: base(graphicsDevice)
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{
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if (indexType == typeof(int) || indexType == typeof(uint))
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{
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this.indexElementSize = Graphics.IndexElementSize.ThirtyTwoBits;
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}
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else if (indexType == typeof(short) || indexType == typeof(ushort))
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{
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this.indexElementSize = Graphics.IndexElementSize.SixteenBits;
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}
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else
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{
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throw new Exception("can't use IndexType " + indexType.ToString());
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}
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this.indexCount = indexCount;
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this.bufferUsage = usage;
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CreateNativeBuffer();
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}
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~IndexBuffer()
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{
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Dispose();
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base.GraphicsDevice.ResourceCreated -= GraphicsDevice_ResourceCreated;
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base.GraphicsDevice.ResourceDestroyed -= GraphicsDevice_ResourceDestroyed;
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}
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private void GraphicsDevice_ResourceDestroyed(object sender, ResourceDestroyedEventArgs e)
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{
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if (this.nativeIndexBuffer != null)
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{
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this.nativeIndexBuffer.Dispose();
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this.nativeIndexBuffer = null;
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}
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}
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private void GraphicsDevice_ResourceCreated(object sender, ResourceCreatedEventArgs e)
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{
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if (nativeIndexBuffer != null)
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{
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nativeIndexBuffer.Dispose();
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nativeIndexBuffer = null;
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}
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CreateNativeBuffer();
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}
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private void CreateNativeBuffer()
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{
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this.nativeIndexBuffer =
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AddInSystemFactory.Instance.GetDefaultCreator<IRenderSystemCreator>().CreateIndexBuffer(GraphicsDevice, this, indexElementSize, indexCount, bufferUsage);
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}
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public void GetData<T>(int offsetInBytes, T[] data, int startIndex, int elementCount) where T : struct
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{
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throw new NotImplementedException();
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}
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public void GetData<T>(T[] data) where T : struct
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{
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GetData<T>(0, data, 0, data.Length);
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}
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public void GetData<T>(T[] data, int startIndex, int elementCount) where T : struct
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{
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GetData<T>(0, data, startIndex, elementCount);
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}
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public void SetData<T>(int offsetInBytes, T[] data, int startIndex, int elementCount) where T : struct
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{
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if (nativeIndexBuffer == null)
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{
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CreateNativeBuffer();
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}
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this.nativeIndexBuffer.SetData<T>(GraphicsDevice, offsetInBytes, data, startIndex, elementCount);
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}
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public void SetData<T>(T[] data) where T : struct
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{
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if (nativeIndexBuffer == null)
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{
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CreateNativeBuffer();
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}
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this.nativeIndexBuffer.SetData<T>(GraphicsDevice, data);
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}
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public void SetData<T>(T[] data, int startIndex, int elementCount) where T : struct
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{
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SetData<T>(0, data, startIndex, elementCount);
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}
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public override void Dispose()
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{
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if (this.nativeIndexBuffer != null)
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{
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this.nativeIndexBuffer.Dispose();
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this.nativeIndexBuffer = null;
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}
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}
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// This is now internal because via befriending the assemblies
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// it's usable in the modules but doesn't confuse the enduser.
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internal INativeBuffer NativeIndexBuffer
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{
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get
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{
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if (nativeIndexBuffer == null)
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{
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CreateNativeBuffer();
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}
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return this.nativeIndexBuffer;
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}
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}
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public BufferUsage BufferUsage
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{
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get
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{
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return this.bufferUsage;
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}
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}
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public int IndexCount
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{
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get
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{
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return this.indexCount;
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}
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}
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public IndexElementSize IndexElementSize
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{
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get
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{
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return this.indexElementSize;
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}
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}
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protected override void Dispose([MarshalAs(UnmanagedType.U1)] bool disposeManaged)
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{
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throw new NotImplementedException();
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}
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}
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}
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