Add J2K decoder routine that converts directly to an image.

OpenSim/Region/CoreModules/Agent/TextureSender/J2KDecoderModule.cs

@@ -27,6 +27,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Drawing;
 using System.IO;
 using System.Reflection;
 using System.Text;
@@ -182,6 +183,25 @@ namespace OpenSim.Region.CoreModules.Agent.TextureSender
             return DoJ2KDecode(assetID, j2kData, out layers, out components);
         }
 
+        public Image DecodeToImage(byte[] j2kData)
+        {
+            if (m_useCSJ2K)
+                return J2kImage.FromBytes(j2kData);
+            else
+            {
+                ManagedImage mimage;
+                Image image;
+                if (OpenJPEG.DecodeToImage(j2kData, out mimage, out image))
+                {
+                    mimage = null;
+                    return image;
+                }
+                else
+                    return null;
+            }
+        }
+
+
         #endregion IJ2KDecoder
 
         /// <summary>

OpenSim/Region/Framework/Interfaces/IJ2KDecoder.cs

@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) Contributors, http://opensimulator.org/
  * See CONTRIBUTORS.TXT for a full list of copyright holders.
  *
@@ -25,6 +25,7 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+using System.Drawing;
 using OpenMetaverse;
 using OpenMetaverse.Imaging;
 
@@ -53,5 +54,12 @@ namespace OpenSim.Region.Framework.Interfaces
         /// <param name="components">number of components</param>
         /// <returns>true if decode was successful.  false otherwise.</returns>
         bool Decode(UUID assetID, byte[] j2kData, out OpenJPEG.J2KLayerInfo[] layers, out int components);
+
+        /// <summary>
+        /// Provides a synchronous decode direct to an image object
+        /// </summary>
+        /// <param name="j2kData"></param>
+        /// <returns>decoded image or 'null' of unsuccessful</returns>
+        Image DecodeToImage(byte[] j2kData);
     }
 }