/// <summary>
/// request a texture file to appear in the cache.
/// </summary>
/// <param name="ent">Entity the provides context for the request (asset server)</param>
/// <param name="worldID">The world ID for the requested texture</param>
/// <param name="finishCall">Where to call when the texture is in the cache</param>
// TODO: if we get a request for the same texture by two different routines
// at the same time, this doesn't do all the callbacks
// To enable this feature, remove the dictionary and checks for already fetching
public override void DoTextureLoad(EntityName textureEntityName, AssetType typ, DownloadFinishedCallback finishCall)
{
EntityNameLL textureEnt = new EntityNameLL(textureEntityName);
string worldID = textureEnt.EntityPart;
OMV.UUID binID = new OMV.UUID(worldID);
// do we already have the file?
string textureFilename = Path.Combine(CacheDirBase, textureEnt.CacheFilename);
lock (FileSystemAccessLock) {
if (File.Exists(textureFilename))
{
m_log.Log(LogLevel.DTEXTUREDETAIL, "DoTextureLoad: Texture file alreayd exists for " + worldID);
bool hasTransparancy = CheckTextureFileForTransparancy(textureFilename);
// make the callback happen on a new thread so things don't get tangled (caller getting the callback)
Object[] finishCallParams = { finishCall, textureEntityName.Name, hasTransparancy };
m_completionWork.DoLater(FinishCallDoLater, finishCallParams);
// m_completionWork.DoLater(new FinishCallDoLater(finishCall, textureEntityName.Name, hasTransparancy));
}
else
{
bool sendRequest = false;
lock (m_waiting) {
// if this is already being requested, don't waste our time
if (m_waiting.ContainsKey(binID))
{
m_log.Log(LogLevel.DTEXTUREDETAIL, "DoTextureLoad: Already waiting for " + worldID);
}
else
{
WaitingInfo wi = new WaitingInfo(binID, finishCall);
wi.filename = textureFilename;
wi.type = typ;
m_waiting.Add(binID, wi);
sendRequest = true;
}
}
if (sendRequest)
{
// this is here because RequestTexture might immediately call the callback
// and we should be outside the lock
m_log.Log(LogLevel.DTEXTUREDETAIL, "DoTextureLoad: Requesting: " + textureEntityName);
// m_texturePipe.RequestTexture(binID, OMV.ImageType.Normal, 50f, 0, 0, OnACDownloadFinished, false);
// m_comm.GridClient.Assets.RequestImage(binID, OMV.ImageType.Normal, 101300f, 0, 0, OnACDownloadFinished, false);
// m_comm.GridClient.Assets.RequestImage(binID, OMV.ImageType.Normal, 50f, 0, 0, OnACDownloadFinished, false);
ThrottleTextureRequests(binID);
}
}
}
return;
}
public string ComputeTextureFilename(string cacheDir, OMV.UUID textureID)
{
EntityNameLL entName = EntityNameLL.ConvertTextureWorldIDToEntityName(this, textureID);
string textureFilename = Path.Combine(CacheDirBase, entName.CacheFilename);
// m_log.Log(LogLevel.DTEXTUREDETAIL, "ComputeTextureFilename: " + textureFilename);
// make sure the recieving directory is there for the texture
MakeParentDirectoriesExist(textureFilename);
// m_log.Log(LogLevel.DTEXTUREDETAIL, "ComputerTextureFilename: returning " + textureFilename);
return(textureFilename);
}
public override void DoTextureLoad(EntityName textureEntityName, AssetType typ, DownloadFinishedCallback finishCall)
{
EntityNameLL textureEnt = new EntityNameLL(textureEntityName);
string worldID = textureEnt.EntityPart;
OMV.UUID binID = new OMV.UUID(worldID);
if (m_basePath == null) return;
// do we already have the file?
string textureFilename = Path.Combine(CacheDirBase, textureEnt.CacheFilename);
lock (FileSystemAccessLock) {
if (File.Exists(textureFilename)) {
m_log.Log(LogLevel.DTEXTUREDETAIL, "DoTextureLoad: Texture file already exists for " + worldID);
bool hasTransparancy = CheckTextureFileForTransparancy(textureFilename);
// make the callback happen on a new thread so things don't get tangled (caller getting the callback)
Object[] finishCallParams = { finishCall, textureEntityName.Name, hasTransparancy };
m_completionWork.DoLater(FinishCallDoLater, finishCallParams);
// m_completionWork.DoLater(new FinishCallDoLater(finishCall, textureEntityName.Name, hasTransparancy));
}
else {
bool sendRequest = false;
lock (m_waiting) {
// if this is already being requested, don't waste our time
if (m_waiting.ContainsKey(binID)) {
m_log.Log(LogLevel.DTEXTUREDETAIL, "DoTextureLoad: Already waiting for " + worldID);
}
else {
WaitingInfo wi = new WaitingInfo(binID, finishCall);
wi.filename = textureFilename;
wi.type = typ;
m_waiting.Add(binID, wi);
sendRequest = true;
}
}
if (sendRequest) {
// this is here because RequestTexture might immediately call the callback
// and we should be outside the lock
m_log.Log(LogLevel.DTEXTUREDETAIL, "DoTextureLoad: Requesting: " + textureEntityName);
// m_texturePipe.RequestTexture(binID, OMV.ImageType.Normal, 50f, 0, 0, OnACDownloadFinished, false);
// m_comm.GridClient.Assets.RequestImage(binID, OMV.ImageType.Normal, 101300f, 0, 0, OnACDownloadFinished, false);
// m_comm.GridClient.Assets.RequestImage(binID, OMV.ImageType.Normal, 50f, 0, 0, OnACDownloadFinished, false);
ThrottleTextureRequests(binID);
}
}
}
return;
}
/// <summary>
/// Implementation routine that the parent class uses to create communication specific entity
/// names.
/// </summary>
/// <param name="acb"></param>
/// <param name="at"></param>
protected override EntityName ConvertToEntityName(AssetContextBase acb, string worldID)
{
return(EntityNameLL.ConvertTextureWorldIDToEntityName(acb, worldID));
}
