#region License Information (GPL v3)
/*
ShareX - A program that allows you to take screenshots and share any file type
Copyright (C) 2007-2015 ShareX Developers
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Optionally you can also view the license at .
*/
#endregion License Information (GPL v3)
using System;
using System.Collections.Concurrent;
using System.Drawing;
using System.Threading;
namespace ShareX.ScreenCaptureLib
{
public abstract class ImageCache : IDisposable
{
public bool IsWorking { get; protected set; }
public ScreencastOptions Options { get; set; }
protected Thread task;
protected BlockingCollection imageQueue;
public ImageCache()
{
imageQueue = new BlockingCollection();
}
public void AddImageAsync(Image img)
{
if (!IsWorking)
{
StartConsumerThread();
}
imageQueue.Add(img);
}
protected virtual void StartConsumerThread()
{
if (!IsWorking)
{
IsWorking = true;
task = new Thread(() =>
{
try
{
while (!imageQueue.IsCompleted)
{
Image img = null;
try
{
img = imageQueue.Take();
if (img != null)
{
//using (new DebugTimer("WriteFrame"))
WriteFrame(img);
}
}
catch (InvalidOperationException)
{
}
finally
{
if (img != null) img.Dispose();
}
}
}
finally
{
IsWorking = false;
}
});
task.Start();
}
}
protected abstract void WriteFrame(Image img);
public void Finish()
{
if (IsWorking)
{
imageQueue.CompleteAdding();
task.Join();
}
Dispose();
}
public virtual void Dispose()
{
if (imageQueue != null)
{
imageQueue.Dispose();
}
}
}
}