using System;
using System.Collections.Generic;
using System.Text;
using System.ServiceModel;
using Emgu.CV;
using Emgu.CV.Structure;

namespace Webservice_Host
{
	[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, ConcurrencyMode = ConcurrencyMode.Multiple)]
	public class ImageService : IImageService, IDisposable
	{
		private Capture capture;
		private bool disposed = false;

		public ImageService()
		{
			this.capture = new Capture();
		}

		~ImageService()
		{
			Dispose(false);
		}

		public void Dispose()
		{
			Dispose(true);
			GC.SuppressFinalize(this);
		}

		public Image<Bgr, Byte> GrabFrame()
		{
			Image<Bgr, Byte> img = capture.QueryFrame();
			return img;
		}

		protected virtual void Dispose(bool disposing)
		{
			if (!this.disposed)
			{
				if (disposing)
				{
					this.capture.Dispose();
					this.capture = null;
				}
				disposed = true;
			}
		}
	}
}