private void HandleImageNotInDatabase(Message m, ViewerConnection vc, ViewerAgentAccessor agent)
{
ImageNotInDatabase res = (ImageNotInDatabase)m;
m_ActiveImageTransfers.Remove(res.ID);
vc.PostEvent(new TextureReceivedEvent
{
Agent = agent,
TextureID = res.ID,
Success = 0,
Data = new ByteArrayApi.ByteArray()
});
}
private void TextureDownloadThread(object param)
{
Thread.CurrentThread.Name = string.Format("LLUDP:Texture Downloader for CircuitCode {0} / IP {1}", CircuitCode, RemoteEndPoint.ToString());
var bakedReqs = new Queue <RequestImage.RequestImageEntry>();
var normalReqs = new Queue <RequestImage.RequestImageEntry>();
var activeRequestImages = new HashSet <UUID>();
#warning Implement Priority handling
while (true)
{
if (!m_TextureDownloadThreadRunning)
{
return;
}
try
{
var req = (bakedReqs.Count != 0 || normalReqs.Count != 0) ?
(RequestImage)m_TextureDownloadQueue.Dequeue(0) :
(RequestImage)m_TextureDownloadQueue.Dequeue(1000);
foreach (var imageRequest in req.RequestImageList)
{
if (imageRequest.DiscardLevel < 0)
{
/* skip discard level < 0 */
continue;
}
if (!activeRequestImages.Contains(imageRequest.ImageID))
{
activeRequestImages.Add(imageRequest.ImageID);
if (imageRequest.Type == RequestImage.ImageType.Baked ||
imageRequest.Type == RequestImage.ImageType.ServerBaked)
{
bakedReqs.Enqueue(imageRequest);
}
else
{
normalReqs.Enqueue(imageRequest);
}
}
}
}
catch
{
if (bakedReqs.Count == 0 && normalReqs.Count == 0)
{
continue;
}
}
if (bakedReqs.Count != 0 || normalReqs.Count != 0)
{
RequestImage.RequestImageEntry imageRequest;
try
{
imageRequest = bakedReqs.Dequeue();
}
catch
{
try
{
imageRequest = normalReqs.Dequeue();
}
catch
{
continue;
}
}
if (LogUDPTextureDownloads)
{
m_Log.InfoFormat("Processing texture {0}", imageRequest.ImageID);
}
/* let us prefer the scene's asset service */
AssetData asset;
try
{
asset = Scene.AssetService[imageRequest.ImageID];
}
catch (Exception e1)
{
try
{
/* now we try the agent's asset service */
asset = Agent.AssetService[imageRequest.ImageID];
try
{
/* let us try to store the image locally */
asset.Temporary = true;
Scene.AssetService.Store(asset);
}
catch (Exception e3)
{
m_Log.DebugFormat("Failed to store asset {0} locally (RequestImage): {1}", imageRequest.ImageID, e3.Message);
}
}
catch (Exception e2)
{
if (Server.LogAssetFailures)
{
m_Log.DebugFormat("Failed to download image {0} (RequestImage): {1} or {2}\nA: {3}\nB: {4}", imageRequest.ImageID, e1.Message, e2.Message, e1.StackTrace, e2.StackTrace);
}
var failres = new ImageNotInDatabase
{
ID = imageRequest.ImageID
};
SendMessage(failres);
if (LogUDPTextureDownloads)
{
m_Log.InfoFormat("texture {0} not found", imageRequest.ImageID);
}
activeRequestImages.Remove(imageRequest.ImageID);
continue;
}
}
ImageCodec codec;
switch (asset.Type)
{
case AssetType.ImageJPEG:
codec = ImageCodec.JPEG;
break;
case AssetType.ImageTGA:
case AssetType.TextureTGA:
codec = ImageCodec.TGA;
break;
case AssetType.Texture:
codec = ImageCodec.J2C;
break;
default:
var failres = new ImageNotInDatabase
{
ID = imageRequest.ImageID
};
SendMessage(failres);
activeRequestImages.Remove(imageRequest.ImageID);
if (LogUDPTextureDownloads)
{
m_Log.InfoFormat("Asset {0} is not a texture", imageRequest.ImageID);
}
continue;
}
var res = new ImageData
{
Codec = codec,
ID = imageRequest.ImageID,
Size = (uint)asset.Data.Length
};
if (asset.Data.Length > IMAGE_FIRST_PACKET_SIZE)
{
List <Message> messages = new List <Message>();
res.Data = new byte[IMAGE_FIRST_PACKET_SIZE];
Buffer.BlockCopy(asset.Data, 0, res.Data, 0, IMAGE_FIRST_PACKET_SIZE);
messages.Add(res);
int offset = IMAGE_FIRST_PACKET_SIZE;
ushort packetno = 1;
while (offset < asset.Data.Length)
{
var ip = new ImagePacket
{
ID = imageRequest.ImageID,
Packet = packetno++,
Data = (asset.Data.Length - offset > IMAGE_PACKET_SIZE) ?
new byte[IMAGE_PACKET_SIZE] :
new byte[asset.Data.Length - offset]
};
Buffer.BlockCopy(asset.Data, offset, ip.Data, 0, ip.Data.Length);
messages.Add(ip);
offset += IMAGE_PACKET_SIZE;
}
res.Packets = packetno;
foreach (Message m in messages)
{
SendMessage(m);
}
}
else
{
res.Data = asset.Data;
res.Packets = 1;
SendMessage(res);
}
activeRequestImages.Remove(imageRequest.ImageID);
if (LogUDPTextureDownloads)
{
m_Log.InfoFormat("Download of texture {0} finished", imageRequest.ImageID);
}
}
}
}
