From 53c9ce46b3cdb9a4bb1cbb5d91641bbacf70866c Mon Sep 17 00:00:00 2001
From: Teravus Ovares <teravus@gmail.com>
Date: Mon, 16 Jun 2008 22:06:55 +0000
Subject: [PATCH] * Enables binary data in BaseHttpServer with 'image' in
 content type. * Enables regular jpeg map images to be served directly from
 the region. * EX:
 http://192.168.1.127:9000/index.php?method=regionImagecc4583cd269b41bfa525dd198e19a5c5
 * This is actually HTTP server address + port +
 index.php?method=regionImage<REGIONUUID, no dashes> * The Webmap image
 location gets printed on the console when the simulator starts up. * JPEG
 data is cached so we only create the webjpeg once.

---
 OpenSim/Framework/Servers/BaseHttpServer.cs   | 11 ++-
 .../Modules/World/WorldMap/WorldMapModule.cs  | 81 ++++++++++++++++++-
 2 files changed, 90 insertions(+), 2 deletions(-)

diff --git a/OpenSim/Framework/Servers/BaseHttpServer.cs b/OpenSim/Framework/Servers/BaseHttpServer.cs
index a69cb63f8d..22698d0e3c 100644
--- a/OpenSim/Framework/Servers/BaseHttpServer.cs
+++ b/OpenSim/Framework/Servers/BaseHttpServer.cs
@@ -641,8 +641,17 @@ namespace OpenSim.Framework.Servers
             }
 
             response.AddHeader("Content-type", contentType);
+            
+            byte[] buffer;
 
-            byte[] buffer = Encoding.UTF8.GetBytes(responseString);
+            if (!contentType.Contains("image"))
+            {
+                buffer = Encoding.UTF8.GetBytes(responseString);
+            }
+            else
+            {
+                buffer = Convert.FromBase64String(responseString);
+            }
 
             response.SendChunked = false;
             response.ContentLength64 = buffer.Length;
diff --git a/OpenSim/Region/Environment/Modules/World/WorldMap/WorldMapModule.cs b/OpenSim/Region/Environment/Modules/World/WorldMap/WorldMapModule.cs
index ebcb440bdd..1dc0d0b08c 100644
--- a/OpenSim/Region/Environment/Modules/World/WorldMap/WorldMapModule.cs
+++ b/OpenSim/Region/Environment/Modules/World/WorldMap/WorldMapModule.cs
@@ -28,8 +28,12 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
 using System.Reflection;
 using libsecondlife;
+using OpenJPEGNet;
 using log4net;
 using Nini.Config;
 using OpenSim.Framework;
@@ -55,6 +59,7 @@ namespace OpenSim.Region.Environment.Modules.World.WorldMap
         private Scene m_scene;
         private List<MapBlockData> cachedMapBlocks = new List<MapBlockData>();
         private int cachedTime = 0;
+        private byte[] myMapImageJPEG;
         
         //private int CacheRegionsDistance = 256;
 
@@ -62,8 +67,15 @@ namespace OpenSim.Region.Environment.Modules.World.WorldMap
 
         public void Initialise(Scene scene, IConfigSource config)
         {
+            myMapImageJPEG = new byte[0];
+
             m_scene = scene;
-            
+            string regionimage = "regionImage" + scene.RegionInfo.RegionID.ToString();
+            regionimage = regionimage.Replace("-", "");
+            m_log.Warn("[WEBMAP]: JPEG Map location: http://" + m_scene.RegionInfo.ExternalEndPoint.Address.ToString() + ":" + m_scene.RegionInfo.HttpPort.ToString() + "/index.php?method=" + regionimage);
+
+
+            m_scene.AddHTTPHandler(regionimage, OnHTTPGetMapImage);
             //QuadTree.Subdivide();
             //QuadTree.Subdivide();
 
@@ -235,5 +247,72 @@ namespace OpenSim.Region.Environment.Modules.World.WorldMap
             mapBlocks = m_scene.CommsManager.GridService.RequestNeighbourMapBlocks(minX - 4, minY - 4, minX + 4, minY + 4);
             remoteClient.SendMapBlock(mapBlocks);
         }
+        public Hashtable OnHTTPGetMapImage(Hashtable keysvals)
+        {
+            m_log.Info("[WEBMAP]: Sending map image jpeg");
+            Hashtable reply = new Hashtable();
+            int statuscode = 200;
+
+            byte[] jpeg;
+
+
+            if (myMapImageJPEG.Length == 0)
+            {
+                MemoryStream imgstream = new MemoryStream();
+                Bitmap mapTexture = new Bitmap(1,1);
+                System.Drawing.Image image = (System.Drawing.Image)mapTexture;
+                
+                
+                try
+                {
+                    // Taking our jpeg2000 data, decoding it, then saving it to a byte array with regular jpeg data
+
+
+                    imgstream = new MemoryStream();
+                    
+                    // non-async because we know we have the asset immediately.
+                    AssetBase mapasset = m_scene.AssetCache.GetAsset(m_scene.RegionInfo.lastMapUUID, true);
+                    
+                    // Decode image to System.Drawing.Image
+                    image = OpenJPEG.DecodeToImage(mapasset.Data);
+
+                    // Save to bitmap
+                    mapTexture = new Bitmap(image);
+
+                    // Save bitmap to stream
+                    mapTexture.Save(imgstream, ImageFormat.Jpeg);
+
+                    // Write the stream to a byte array for output
+                    jpeg = imgstream.ToArray();
+                    myMapImageJPEG = jpeg;
+                }
+                catch (Exception)
+                {
+                    // Dummy!
+                    jpeg = new byte[0];
+                    m_log.Warn("[WEBMAP]: Unable to generate Map image");
+                }
+                finally
+                {
+                    // Reclaim memory, these are unmanaged resources
+                    mapTexture.Dispose();
+                    image.Dispose();
+                    imgstream.Close();
+                    imgstream.Dispose();
+                }
+            }
+            else
+            {
+                // Use cached version so we don't have to loose our mind
+                jpeg = myMapImageJPEG;
+            }
+            //jpeg = new byte[0];
+
+            reply["str_response_string"] = Convert.ToBase64String(jpeg);
+            reply["int_response_code"] = statuscode;
+            reply["content_type"] = "image/jpeg";
+
+            return reply;
+        }
     }
 }