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using System;
using System.Drawing;
using System.IO;
using System.Net;
using libsecondlife;
using Nini.Config;
using OpenJPEGNet;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Scenes;
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, IConfigSource config)
{
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;
}
}
}
}
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