/// <summary>
/// Handle a texture request. This involves creating a texture sender and placing it on the
/// previously passed in shared queue.
/// </summary>
/// <param name="e"></param>
public void HandleTextureRequest(TextureRequestArgs e)
{
TextureSender.TextureSender textureSender;
//TODO: should be working out the data size/ number of packets to be sent for each discard level
if ((e.DiscardLevel >= 0) || (e.Priority != 0))
{
lock (m_textureSenders)
{
if (m_textureSenders.TryGetValue(e.RequestedAssetID, out textureSender))
{
// If we've received new non UUID information for this request and it hasn't dispatched
// yet, then update the request accordingly.
textureSender.UpdateRequest(e.DiscardLevel, e.PacketNumber);
}
else
{
// m_log.DebugFormat("[TEXTURE]: Received a request for texture {0}", e.RequestedAssetID);
if (!foundTextureLimitStrategy.AllowRequest(e.RequestedAssetID))
{
// m_log.DebugFormat(
// "[TEXTURE]: Refusing request for {0} from client {1}",
// e.RequestedAssetID, m_client.AgentId);
return;
}
else if (!missingTextureLimitStrategy.AllowRequest(e.RequestedAssetID))
{
if (missingTextureLimitStrategy.IsFirstRefusal(e.RequestedAssetID))
{
if (StatsManager.SimExtraStats != null)
StatsManager.SimExtraStats.AddBlockedMissingTextureRequest();
// Commenting out this message for now as it causes too much noise with other
// debug messages.
// m_log.DebugFormat(
// "[TEXTURE]: Dropping requests for notified missing texture {0} for client {1} since we have received more than {2} requests",
// e.RequestedAssetID, m_client.AgentId, MAX_ALLOWED_TEXTURE_REQUESTS);
}
return;
}
m_scene.StatsReporter.AddPendingDownloads(1);
TextureSender.TextureSender requestHandler = new TextureSender.TextureSender(m_client, e.DiscardLevel, e.PacketNumber);
m_textureSenders.Add(e.RequestedAssetID, requestHandler);
m_scene.CommsManager.AssetCache.GetAsset(e.RequestedAssetID, TextureCallback,
AssetRequestInfo.GenericNetRequest());
}
}
}
else
{
lock (m_textureSenders)
{
if (m_textureSenders.TryGetValue(e.RequestedAssetID, out textureSender))
{
textureSender.Cancel = true;
}
}
}
}
/// <summary>
/// Start the process of requesting a given texture.
/// </summary>
/// <param name="sender"> </param>
/// <param name="e"></param>
public void TextureRequest(Object sender, TextureRequestArgs e)
{
IClientAPI client = (IClientAPI)sender;
if (e.Priority == 1016001f) // Preview
{
if (client.Scene is Scene)
{
Scene scene = (Scene)client.Scene;
ScenePresence sp = scene.GetScenePresence(client.AgentId);
if (sp == null) // Deny unknown user
return;
IInventoryService invService = scene.InventoryService;
if (invService.GetRootFolder(client.AgentId) == null) // Deny no inventory
return;
// Diva 2009-08-13: this test doesn't make any sense to many devs
//if (profile.UserProfile.GodLevel < 200 && profile.RootFolder.FindAsset(e.RequestedAssetID) == null) // Deny if not owned
//{
// m_log.WarnFormat("[TEXTURE]: user {0} doesn't have permissions to texture {1}");
// return;
//}
m_log.Debug("Texture preview");
}
}
UserTextureDownloadService textureService;
if (TryGetUserTextureService(client, out textureService))
{
textureService.HandleTextureRequest(e);
}
}
/// <summary>
/// Start the process of requesting a given texture.
/// </summary>
/// <param name="sender"> </param>
/// <param name="e"></param>
public void TextureRequest(Object sender, TextureRequestArgs e)
{
IClientAPI client = (IClientAPI)sender;
if (e.Priority == 1016001f) // Preview
{
if (client.Scene is Scene)
{
Scene scene = (Scene)client.Scene;
CachedUserInfo profile = scene.CommsManager.UserService.GetUserDetails(client.AgentId);
if (profile == null) // Deny unknown user
return;
if (profile.UserProfile.GodLevel < 200 && profile.FindItem(e.RequestedAssetID) == null) // Deny if not owned
return;
m_log.Debug("Texture preview");
}
}
UserTextureDownloadService textureService;
if (TryGetUserTextureService(client, out textureService))
{
textureService.HandleTextureRequest(e);
}
}
public void EnqueueReq(TextureRequestArgs newRequest)
{
//newRequest is the properties of our new texture fetch request.
//Basically, here is where we queue up "new" requests..
// .. or modify existing requests to suit.
//Make sure we're not shutting down..
if (!m_shuttingdown)
{
//Do we already know about this UUID?
if (m_imagestore.ContainsKey(newRequest.RequestedAssetID))
{
//Check the packet sequence to make sure this isn't older than
//one we've already received
J2KImage imgrequest = m_imagestore[newRequest.RequestedAssetID];
// This is the inbound request sequence number. We can ignore
// "old" ones.
if (newRequest.requestSequence > imgrequest.m_lastSequence)
{
imgrequest.m_lastSequence = newRequest.requestSequence;
//Check the priority
double priority = imgrequest.m_requestedPriority;
if (priority != newRequest.Priority)
{
//Remove the old priority
m_priorities.Remove(imgrequest.m_designatedPriorityKey);
//Assign a new unique priority
imgrequest.m_requestedPriority = newRequest.Priority;
imgrequest.m_designatedPriorityKey = AssignPriority(newRequest.RequestedAssetID, newRequest.Priority);
}
//Update the requested discard level
imgrequest.m_requestedDiscardLevel = newRequest.DiscardLevel;
//Update the requested packet number
imgrequest.m_requestedPacketNumber = newRequest.PacketNumber;
//Check if this will create an outstanding texture request
bool activated = imgrequest.m_completedSendAtCurrentDiscardLevel;
//Run an update
imgrequest.RunUpdate();
if (activated && !imgrequest.m_completedSendAtCurrentDiscardLevel && imgrequest.m_decoded)
{
Interlocked.Increment(ref m_outstandingtextures);
}
}
}
else
{
J2KImage imgrequest = new J2KImage(this);
//Assign our missing substitute
imgrequest.m_MissingSubstitute = m_missingsubstitute;
//Assign our decoder module
imgrequest.m_j2kDecodeModule = m_j2kDecodeModule;
//Assign our asset cache module
imgrequest.m_assetCache = m_assetCache;
//Assign a priority based on our request
imgrequest.m_designatedPriorityKey = AssignPriority(newRequest.RequestedAssetID, newRequest.Priority);
//Assign the requested discard level
imgrequest.m_requestedDiscardLevel = newRequest.DiscardLevel;
//Assign the requested packet number
imgrequest.m_requestedPacketNumber = newRequest.PacketNumber;
//Assign the requested priority
imgrequest.m_requestedPriority = newRequest.Priority;
//Assign the asset uuid
imgrequest.m_requestedUUID = newRequest.RequestedAssetID;
m_imagestore.Add(imgrequest.m_requestedUUID, imgrequest);
//Run an update
imgrequest.RunUpdate();
}
}
}
public void TestMissingImage()
{
TestHelpers.InMethod();
// XmlConfigurator.Configure();
TextureRequestArgs args = new TextureRequestArgs();
args.RequestedAssetID = m_testImageAsset.FullID;
args.DiscardLevel = 0;
args.PacketNumber = 1;
args.Priority = 5;
args.requestSequence = 1;
llim.EnqueueReq(args);
llim.ProcessImageQueue(20);
Assert.That(tc.SentImageDataPackets.Count, Is.EqualTo(0));
Assert.That(tc.SentImageNotInDatabasePackets.Count, Is.EqualTo(1));
}
public void TestDiscardImage()
{
TestHelpers.InMethod();
// XmlConfigurator.Configure();
scene.AssetService.Store(m_testImageAsset);
TextureRequestArgs args = new TextureRequestArgs();
args.RequestedAssetID = m_testImageAsset.FullID;
args.DiscardLevel = 0;
args.PacketNumber = 1;
args.Priority = 5;
args.requestSequence = 1;
llim.EnqueueReq(args);
// Now create a discard request
TextureRequestArgs discardArgs = new TextureRequestArgs();
discardArgs.RequestedAssetID = m_testImageAsset.FullID;
discardArgs.DiscardLevel = -1;
discardArgs.PacketNumber = 1;
discardArgs.Priority = 0;
discardArgs.requestSequence = 2;
llim.EnqueueReq(discardArgs);
llim.ProcessImageQueue(20);
Assert.That(tc.SentImageDataPackets.Count, Is.EqualTo(0));
}