Added "LoadImageUrl" module , that is a dynamic texture render, that works with the DynamicTextureModule to allow loading of a image from a webserver and a texture of that image created.

1 files changed, 123 insertions, 0 deletions

diff --git a/OpenSim/Region/Environment/Modules/LoadImageURLModule.cs b/OpenSim/Region/Environment/Modules/LoadImageURLModule.cs
new file mode 100644
index 0000000..f1f479d
--- /dev/null
+++ b/OpenSim/Region/Environment/Modules/LoadImageURLModule.cs
@@ -0,0 +1,123 @@
+using System;

+using System.Collections.Generic;

+using System.Text;

+using System.Net;

+using System.IO;

+using System.Drawing;

+using libsecondlife;

+using OpenJPEGNet;

+using OpenSim.Region.Environment.Scenes;

+using OpenSim.Region.Environment.Interfaces;

+

+namespace OpenSim.Region.Environment.Modules

+{

+    public class LoadImageURLModule : IRegionModule , IDynamicTextureRender

+    {

+        private string m_name = "LoadImageURL";

+        private IDynamicTextureManager m_textureManager;

+        private Scene m_scene;

+

+        public void Initialise(Scene scene)

+        {

+            if (m_scene == null)

+            {

+                m_scene = scene;

+            }

+        }

+

+        public void PostInitialise()

+        {

+            m_textureManager = m_scene.RequestModuleInterface<IDynamicTextureManager>();

+            m_textureManager.RegisterRender(GetContentType(), this);

+        }

+

+        public void Close()

+        {

+        }

+

+        public string Name

+        {

+            get { return m_name; }

+        }

+

+        public bool IsSharedModule

+        {

+            get { return true; }

+        }

+

+        public string GetName()

+        {

+            return m_name;

+        }

+

+        public string GetContentType()

+        {

+            return ("image");

+        }

+

+        public bool SupportsAsynchronous()

+        {

+            return true;

+        }

+

+        public byte[] ConvertUrl(string url, string extraParams)

+        {

+            return null;

+        }

+

+        public byte[] ConvertStream(Stream data, string extraParams)

+        {

+            return null;

+        }

+

+        public bool AsyncConvertUrl(LLUUID id, string url, string extraParams)

+        {

+            MakeHttpRequest(url, id);

+            return true;

+        }

+

+        public bool AsyncConvertData(LLUUID id, string bodyData, string extraParams)

+        {

+            return false;

+        }

+

+        private void MakeHttpRequest(string url, LLUUID requestID)

+        {

+            WebRequest request = HttpWebRequest.Create(url);

+            RequestState state = new RequestState((HttpWebRequest)request, requestID);

+            IAsyncResult result = request.BeginGetResponse(new AsyncCallback(HttpRequestReturn), state);

+

+            TimeSpan t = (DateTime.UtcNow - new DateTime(1970, 1, 1));

+            state.TimeOfRequest = (int)t.TotalSeconds;

+        }

+

+        private void HttpRequestReturn(IAsyncResult result)

+        {

+            RequestState state = (RequestState)result.AsyncState;

+            WebRequest request = (WebRequest)state.Request;

+            HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(result);

+            if (response.StatusCode == HttpStatusCode.OK)

+            {

+               Bitmap image = new Bitmap(response.GetResponseStream());

+               Bitmap resize = new Bitmap(image, new Size(512, 512));

+               byte[] imageJ2000 = OpenJPEG.EncodeFromImage(resize, true);

+

+               m_textureManager.ReturnData(state.RequestID, imageJ2000);

+            }

+        }

+

+        public class RequestState

+        {

+            public HttpWebRequest Request = null;

+            public LLUUID RequestID = LLUUID.Zero;

+            public int TimeOfRequest = 0;

+

+            public RequestState(HttpWebRequest request, LLUUID requestID)

+            {

+                Request = request;

+                RequestID = requestID;

+            }

+        }

+

+    }

+}