#region License
#endregion
#region Using Statements
using System;
#endregion
namespace Microsoft.Xna.Framework.Graphics
{
public class OcclusionQuery : GraphicsResource
{
#region Public Properties
public bool IsComplete
{
get
{
return GraphicsDevice.GLDevice.QueryComplete(query);
}
}
public int PixelCount
{
get
{
return GraphicsDevice.GLDevice.QueryPixelCount(query);
}
}
#endregion
#region Private OpenGL Variables
private IGLQuery query;
#endregion
#region Public Constructor
public OcclusionQuery(GraphicsDevice graphicsDevice)
{
GraphicsDevice = graphicsDevice;
query = GraphicsDevice.GLDevice.CreateQuery();
}
#endregion
#region Protected Dispose Method
protected override void Dispose(bool disposing)
{
if (!IsDisposed)
{
GraphicsDevice.GLDevice.AddDisposeQuery(query);
}
base.Dispose(disposing);
}
#endregion
#region Public Begin/End Methods
public void Begin()
{
GraphicsDevice.GLDevice.QueryBegin(query);
}
public void End()
{
GraphicsDevice.GLDevice.QueryEnd(query);
}
#endregion
}
}
