Implemented Tango.RemoteDesktop.

Implemented png 8 bit quantization.
Implemented RasterFrame bounds clipping.
Refactored VectorFrame to use indexed colors.

1 files changed, 61 insertions, 0 deletions

diff --git a/Software/Visual_Studio/Tango.RemoteDesktop/FrameEncoder.cs b/Software/Visual_Studio/Tango.RemoteDesktop/FrameEncoder.cs
new file mode 100644
index 000000000..a1413d9c9
--- /dev/null
+++ b/Software/Visual_Studio/Tango.RemoteDesktop/FrameEncoder.cs
@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Tango.RemoteDesktop
+{
+    /// <summary>
+    /// Represents a base <see cref="IFrameEncoder"/>.
+    /// </summary>
+    /// <seealso cref="Tango.RemoteDesktop.IFrameEncoder" />
+    public abstract class FrameEncoder : IFrameEncoder
+    {
+        /// <summary>
+        /// Gets the frame instance.
+        /// </summary>
+        public IFrame Frame { get; private set; }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FrameEncoder"/> class using an existing <see cref="IFrame"/>.
+        /// </summary>
+        /// <param name="frame">The frame.</param>
+        public FrameEncoder(IFrame frame)
+        {
+            Frame = frame;
+        }
+
+        /// <summary>
+        /// Returns a stream containing the encoded frame.
+        /// </summary>
+        /// <returns></returns>
+        public abstract MemoryStream ToStream();
+
+        /// <summary>
+        /// Returns a byte array containing the encoded frame.
+        /// </summary>
+        /// <returns></returns>
+        public byte[] ToArray()
+        {
+            using (var ms = ToStream())
+            {
+                return ms.ToArray();
+            }
+        }
+
+        /// <summary>
+        /// Gets the image encoder by the specified image format.
+        /// </summary>
+        /// <param name="format">The format.</param>
+        /// <returns></returns>
+        protected ImageCodecInfo GetEncoder(ImageFormat format)
+        {
+            ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
+            return codecs.Single(codec => codec.FormatID == format.Guid);
+        }
+    }
+}