/Graphics/OpenTK/OpenTKScreenshotCapturer.cs

using System;

using Delta.Engine;

using Delta.Platforms.Windows;

using Delta.Utilities;

using OpenTK.Graphics.OpenGL;



namespace Delta.Graphics.OpenTK

{

	/// <summary>

	/// OpenTK Screenshot Capturer implementation

	/// </summary>

	internal class OpenTKScreenshotCapturer : ScreenshotCapturer

	{

		#region MakeScreenshot (Public)

		/// <summary>

		/// Make screenshot

		/// http://www.bit-101.com/blog/?p=1861

		/// </summary>

		public override string MakeScreenshot()

		{

			if (CapturingAllowed == false)

			{

				return null;

			}



			try

			{

				int width = Application.Window.ViewportPixelWidth;

				int height = Application.Window.ViewportPixelHeight;

				byte[] rgbData = new byte[width * height * 3];

				GL.ReadPixels(0, 0, width, height, PixelFormat.Rgb,

					PixelType.UnsignedByte, rgbData);



				string filename = GetNextFilename();

				BitmapHelper.SaveJpg(width, height, filename, rgbData, true);

				return filename;

			}

			catch (Exception ex)

			{

				Log.Info("Failed to save Screenshot: " + ex);

			}



			return null;

		}

		#endregion

	}

}