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IndexBuffer.cs
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IndexBuffer.cs
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#region Copyright & License Information
/*
* Copyright 2007-2010 The OpenRA Developers (see AUTHORS)
* This file is part of OpenRA, which is free software. It is made
* available to you under the terms of the GNU General Public License
* as published by the Free Software Foundation. For more information,
* see LICENSE.
*/
#endregion
using System;
using OpenRA.FileFormats.Graphics;
using Tao.OpenGl;
namespace OpenRA.Renderer.Cg
{
public class IndexBuffer : IIndexBuffer, IDisposable
{
int buffer;
public IndexBuffer(GraphicsDevice dev, int size)
{
Gl.glGenBuffers(1, out buffer);
GraphicsDevice.CheckGlError();
Bind();
Gl.glBufferData(Gl.GL_ELEMENT_ARRAY_BUFFER,
new IntPtr(2 * size),
new ushort[ size ],
Gl.GL_DYNAMIC_DRAW);
GraphicsDevice.CheckGlError();
}
public void SetData(ushort[] data, int length)
{
Bind();
Gl.glBufferSubData(Gl.GL_ELEMENT_ARRAY_BUFFER,
IntPtr.Zero,
new IntPtr(2 * length),
data);
GraphicsDevice.CheckGlError();
}
public void Bind()
{
Gl.glBindBuffer(Gl.GL_ELEMENT_ARRAY_BUFFER, buffer);
GraphicsDevice.CheckGlError();
}
bool disposed;
public void Dispose()
{
if (disposed) return;
GC.SuppressFinalize(this);
Gl.glDeleteBuffers(1, ref buffer);
GraphicsDevice.CheckGlError();
disposed = true;
}
//~IndexBuffer() { Dispose(); }
}
}