/// <summary>
/// Sends packets for this texture to a client until packetsToSend is
/// hit or the transfer completes
/// </summary>
/// <param name="client">Reference to the client that the packets are destined for</param>
/// <param name="packetsToSend">Maximum number of packets to send during this call</param>
/// <param name="packetsSent">Number of packets sent during this call</param>
/// <returns>True if the transfer completes at the current discard level, otherwise false</returns>
public bool SendPackets(LLClientView client, int packetsToSend, out int packetsSent)
{
packetsSent = 0;
if (m_currentPacket <= m_stopPacket)
{
bool sendMore = true;
if (!m_sentInfo || (m_currentPacket == 0))
{
sendMore = !SendFirstPacket(client);
m_sentInfo = true;
++m_currentPacket;
++packetsSent;
}
if (m_currentPacket < 2)
{
m_currentPacket = 2;
}
while (sendMore && packetsSent < packetsToSend && m_currentPacket <= m_stopPacket)
{
sendMore = SendPacket(client);
++m_currentPacket;
++packetsSent;
}
}
return(m_currentPacket > m_stopPacket);
}
bool SendPacket(LLClientView client)
{
if (client == null || m_asset == null)
{
return(false);
}
bool complete = false;
int imagePacketSize = ((int)m_currentPacket == (TexturePacketCount()))
? LastPacketSize()
: IMAGE_PACKET_SIZE;
try
{
if ((CurrentBytePosition() + IMAGE_PACKET_SIZE) > m_asset.Length)
{
imagePacketSize = LastPacketSize();
complete = true;
if ((CurrentBytePosition() + imagePacketSize) > m_asset.Length)
{
imagePacketSize = m_asset.Length - CurrentBytePosition();
complete = true;
}
}
// It's concievable that the client might request packet one
// from a one packet image, which is really packet 0,
// which would leave us with a negative imagePacketSize..
if (imagePacketSize > 0)
{
byte[] imageData = new byte[imagePacketSize];
int currentPosition = CurrentBytePosition();
try
{
Buffer.BlockCopy(m_asset, currentPosition, imageData, 0, imagePacketSize);
}
catch (Exception e)
{
MainConsole.Instance.ErrorFormat(
"[J2K Image]: Texture block copy for the first packet failed. textureid={0}, assetlength={1}, currentposition={2}, imagepacketsize={3}, exception={4}",
TextureID, m_asset.Length, currentPosition, imagePacketSize, e.Message);
return(false);
}
//Send the packet
client.SendImageNextPart((ushort)(m_currentPacket - 1), TextureID, imageData);
}
return(!complete);
}
catch (Exception)
{
return(false);
}
}
public LLImageManager(LLClientView client, IAssetService pAssetCache, IJ2KDecoder pJ2kDecodeModule)
{
m_client = client;
m_assetCache = pAssetCache;
if (pAssetCache != null && m_missingImage == null)
{
m_missingImage = pAssetCache.Get("5748decc-f629-461c-9a36-a35a221fe21f");
}
if (m_missingImage == null)
{
MainConsole.Instance.Error(
"[ClientView] - Couldn't set missing image asset, falling back to missing image packet. This is known to crash the client");
}
m_j2kDecodeModule = pJ2kDecodeModule;
}
public LLImageManager(LLClientView client, IAssetService pAssetCache, IJ2KDecoder pJ2kDecodeModule)
{
m_client = client;
m_assetCache = pAssetCache;
if (pAssetCache != null && m_missingImage == null)
{
//m_missingImage = pAssetCache.Get("5748decc-f629-461c-9a36-a35a221fe21f"); // this is just a blank texture. Not very useful -greythane-
m_missingImage = pAssetCache.Get(Constants.MISSING_TEXTURE_ID);
}
if (m_missingImage == null)
{
MainConsole.Instance.Error(
"[ClientView] - Couldn't set missing image asset, falling back to missing image packet. This is known to crash the client");
}
m_j2kDecodeModule = pJ2kDecodeModule;
}
bool SendFirstPacket(LLClientView client)
{
if (client == null)
{
return(false);
}
if (m_asset == null)
{
MainConsole.Instance.Warn("[J2K Image]: Sending ImageNotInDatabase for texture " + TextureID);
client.SendImageNotFound(TextureID);
return(true);
}
if (m_asset.Length <= FIRST_PACKET_SIZE)
{
// We have less then one packet's worth of data
client.SendImageFirstPart(1, TextureID, (uint)m_asset.Length, m_asset, 2);
m_stopPacket = 0;
return(true);
}
// This is going to be a multi-packet texture download
byte[] firstImageData = new byte[FIRST_PACKET_SIZE];
try
{
Buffer.BlockCopy(m_asset, 0, firstImageData, 0, FIRST_PACKET_SIZE);
}
catch (Exception)
{
MainConsole.Instance.ErrorFormat(
"[J2K Image]: Texture block copy for the first packet failed. textureid={0}, assetlength={1}",
TextureID, m_asset.Length);
return(true);
}
client.SendImageFirstPart(TexturePacketCount(), TextureID, (uint)m_asset.Length, firstImageData,
(byte)ImageCodec.J2C);
return(false);
}
public AsyncPacketProcess(LLClientView pClientview, PacketMethod pMethod, Packet pPack)
{
ClientView = pClientview;
Method = pMethod;
Pack = pPack;
}
