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* Rewrote LLImageManager to use a real priority queue and hold minimal state

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* Rewrote the logic in J2KImage.RunUpdate()
* Added a default avatar texture (I made it myself)
This commit is contained in:
John Hurliman
2009-10-01 17:42:13 -07:00
parent 44776fea72
commit 6e0c79b8fe
5 changed files with 363 additions and 474 deletions
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499
OpenSim/Region/ClientStack/LindenUDP/J2KImage.cs
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@@ -38,44 +38,37 @@ using System.Reflection;
namespace OpenSim.Region.ClientStack.LindenUDP
{
/// <summary>
/// We use this class to store image data and associated request data and attributes
/// Stores information about a current texture download and a reference to the texture asset
/// </summary>
public class J2KImage
{
private const int IMAGE_PACKET_SIZE = 1000;
private const int FIRST_PACKET_SIZE = 600;
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
public double m_designatedPriorityKey;
public double m_requestedPriority = 0.0d;
public uint m_lastSequence = 0;
public uint m_lastSequence;
public float m_requestedPriority;
public uint m_requestedPacketNumber;
public sbyte m_requestedDiscardLevel;
public UUID m_requestedUUID;
public IJ2KDecoder m_j2kDecodeModule;
public IAssetService m_assetCache;
public OpenJPEG.J2KLayerInfo[] Layers = new OpenJPEG.J2KLayerInfo[0];
public AssetBase m_MissingSubstitute = null;
public bool m_decoded = false;
public bool m_completedSendAtCurrentDiscardLevel;
public OpenJPEG.J2KLayerInfo[] m_layers;
public bool m_decoded;
public bool m_hasasset;
public C5.IPriorityQueueHandle<J2KImage> m_priorityQueueHandle;
private sbyte m_discardLevel=-1;
private uint m_packetNumber;
private bool m_decoderequested = false;
public bool m_hasasset = false;
private bool m_asset_requested = false;
private bool m_sentinfo = false;
private uint m_stopPacket = 0;
private const int cImagePacketSize = 1000;
private const int cFirstPacketSize = 600;
private bool m_decoderequested;
private bool m_asset_requested;
private bool m_sentinfo;
private uint m_stopPacket;
private AssetBase m_asset;
private int m_assetDataLength;
private LLImageManager m_imageManager;
private AssetBase m_asset = null;
private int m_assetDataLength = 0;
private LLImageManager m_image;
public J2KImage(LLImageManager image)
{
m_image = image;
}
#region Properties
public uint m_pPacketNumber
{
@@ -88,10 +81,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
public byte[] Data
{
get
{
if (m_asset != null)
return m_asset.Data;
get
{
if (m_asset != null)
return m_asset.Data;
else
return null;
}
@@ -101,9 +94,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
{
if (!m_decoded)
return 0;
try
{
return (ushort)(((m_assetDataLength - cFirstPacketSize + cImagePacketSize - 1) / cImagePacketSize) + 1);
return (ushort)(((m_assetDataLength - FIRST_PACKET_SIZE + IMAGE_PACKET_SIZE - 1) / IMAGE_PACKET_SIZE) + 1);
}
catch (Exception)
{
@@ -114,204 +108,45 @@ namespace OpenSim.Region.ClientStack.LindenUDP
}
}
public void DropAsset()
#endregion Properties
public J2KImage(LLImageManager imageManager)
{
//m_log.WarnFormat("[LLIMAGE MANAGER]: Dropping texture asset {0}", m_requestedUUID);
m_asset = null;
m_hasasset = false;
m_asset_requested = false;
m_imageManager = imageManager;
}
public void J2KDecodedCallback(UUID AssetId, OpenJPEG.J2KLayerInfo[] layers)
{
m_image.m_outstandingtextures++;
Layers = layers;
m_decoded = true;
RunUpdate();
}
public void AssetDataCallback(UUID AssetID, AssetBase asset)
{
m_hasasset = true;
if (asset == null || asset.Data == null)
{
m_asset = m_MissingSubstitute;
}
else
{
m_asset = asset;
}
m_assetDataLength = m_asset.Data.Length;
RunUpdate();
}
protected void AssetReceived(string id, Object sender, AssetBase asset)
{
UUID assetID = UUID.Zero;
if (asset != null)
assetID = asset.FullID;
AssetDataCallback(assetID, asset);
}
private int GetPacketForBytePosition(int bytePosition)
{
return ((bytePosition - cFirstPacketSize + cImagePacketSize - 1) / cImagePacketSize) + 1;
}
public int LastPacketSize()
{
if (m_packetNumber == 1)
return m_assetDataLength;
int lastsize = (m_assetDataLength - cFirstPacketSize) % cImagePacketSize;
//If the last packet size is zero, it's really cImagePacketSize, it sits on the boundary
if (lastsize == 0)
{
lastsize = cImagePacketSize;
}
return lastsize;
}
public int CurrentBytePosition()
{
if (m_packetNumber == 0)
return 0;
if (m_packetNumber == 1)
return cFirstPacketSize;
int result = cFirstPacketSize + ((int)m_packetNumber - 2) * cImagePacketSize;
if (result < 0)
{
result = cFirstPacketSize;
}
return result;
}
public bool SendFirstPacket(LLClientView client)
{
// this means we don't have
if (Data == null)
{
client.SendImageNotFound(m_requestedUUID);
m_log.WarnFormat("[TEXTURE]: Got null Data element on a asset {0}.. and the missing image Data property is al", m_requestedUUID);
return true;
}
// Do we have less then 1 packet's worth of data?
else if (m_assetDataLength <= cFirstPacketSize)
{
// Send only 1 packet
client.SendImageFirstPart(1, m_requestedUUID, (uint)m_assetDataLength, m_asset.Data, 2);
m_stopPacket = 0;
return true;
}
else
{
byte[] firstImageData = new byte[cFirstPacketSize];
try
{
Buffer.BlockCopy(m_asset.Data, 0, firstImageData, 0, (int)cFirstPacketSize);
client.SendImageFirstPart(TexturePacketCount(), m_requestedUUID, (uint)m_assetDataLength, firstImageData, 2);
}
catch (Exception)
{
m_log.Error("Texture block copy failed. Possibly out of memory?");
return true;
}
}
return false;
}
private bool SendPacket(LLClientView client)
{
bool complete = false;
int imagePacketSize = ((int)m_packetNumber == (TexturePacketCount())) ? LastPacketSize() : cImagePacketSize;
try
{
if ((CurrentBytePosition() + cImagePacketSize) > m_assetDataLength)
{
imagePacketSize = LastPacketSize();
complete=true;
if ((CurrentBytePosition() + imagePacketSize) > m_assetDataLength)
{
imagePacketSize = m_assetDataLength - 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];
try
{
Buffer.BlockCopy(m_asset.Data, CurrentBytePosition(), imageData, 0, imagePacketSize);
}
catch (Exception e)
{
m_log.Error("Error copying texture block. Out of memory? imagePacketSize was " + imagePacketSize.ToString() + " on packet " + m_packetNumber.ToString() + " out of " + m_stopPacket.ToString() + ". Exception: " + e.ToString());
return false;
}
//Send the packet
client.SendImageNextPart((ushort)(m_packetNumber-1), m_requestedUUID, imageData);
}
if (complete)
{
return false;
}
else
{
return true;
}
}
catch (Exception)
{
return false;
}
}
public bool SendPackets(LLClientView client, int maxpack)
{
if (!m_completedSendAtCurrentDiscardLevel)
if (m_packetNumber <= m_stopPacket)
{
if (m_packetNumber <= m_stopPacket)
bool SendMore = true;
if (!m_sentinfo || (m_packetNumber == 0))
{
bool SendMore = true;
if (!m_sentinfo || (m_packetNumber == 0))
if (SendFirstPacket(client))
{
if (SendFirstPacket(client))
{
SendMore = false;
}
m_sentinfo = true;
m_packetNumber++;
}
// bool ignoreStop = false;
if (m_packetNumber < 2)
{
m_packetNumber = 2;
}
int count = 0;
while (SendMore && count < maxpack && m_packetNumber <= m_stopPacket)
{
count++;
SendMore = SendPacket(client);
m_packetNumber++;
}
if (m_packetNumber > m_stopPacket)
{
return true;
SendMore = false;
}
m_sentinfo = true;
m_packetNumber++;
}
// bool ignoreStop = false;
if (m_packetNumber < 2)
{
m_packetNumber = 2;
}
int count = 0;
while (SendMore && count < maxpack && m_packetNumber <= m_stopPacket)
{
count++;
SendMore = SendPacket(client);
m_packetNumber++;
}
if (m_packetNumber > m_stopPacket)
return true;
}
return false;
}
@@ -323,19 +158,14 @@ namespace OpenSim.Region.ClientStack.LindenUDP
if (!m_hasasset)
{
if (!m_asset_requested)
{
m_asset_requested = true;
m_assetCache.Get(m_requestedUUID.ToString(), this, AssetReceived);
}
}
else
{
if (!m_decoded)
{
//We need to decode the requested image first
@@ -362,59 +192,202 @@ namespace OpenSim.Region.ClientStack.LindenUDP
J2KDecodedCallback(m_requestedUUID, new OpenJPEG.J2KLayerInfo[0]);
}
}
}
else
{
//discardLevel of -1 means just update the priority
if (m_requestedDiscardLevel != -1)
// Check for missing image asset data
if (m_asset == null || m_asset.Data == null)
{
//Evaluate the discard level
//First, is it positive?
if (m_requestedDiscardLevel >= 0)
{
if (m_requestedDiscardLevel > Layers.Length - 1)
{
m_discardLevel = (sbyte)(Layers.Length - 1);
}
else
{
m_discardLevel = m_requestedDiscardLevel;
}
// FIXME:
m_packetNumber = m_stopPacket;
return;
}
//Calculate the m_stopPacket
if (Layers.Length > 0)
{
m_stopPacket = (uint)GetPacketForBytePosition(Layers[(Layers.Length - 1) - m_discardLevel].End);
//I don't know why, but the viewer seems to expect the final packet if the file
//is just one packet bigger.
if (TexturePacketCount() == m_stopPacket + 1)
{
m_stopPacket = TexturePacketCount();
}
}
else
if (m_requestedDiscardLevel >= 0 || m_stopPacket == 0)
{
int maxDiscardLevel = Math.Max(0, m_layers.Length - 1);
// Treat initial texture downloads with a DiscardLevel of -1 a request for the highest DiscardLevel
if (m_requestedDiscardLevel < 0 && m_stopPacket == 0)
m_requestedDiscardLevel = (sbyte)maxDiscardLevel;
// Clamp at the highest discard level
m_requestedDiscardLevel = (sbyte)Math.Min(m_requestedDiscardLevel, maxDiscardLevel);
//Calculate the m_stopPacket
if (m_layers.Length > 0)
{
m_stopPacket = (uint)GetPacketForBytePosition(m_layers[(m_layers.Length - 1) - m_requestedDiscardLevel].End);
//I don't know why, but the viewer seems to expect the final packet if the file
//is just one packet bigger.
if (TexturePacketCount() == m_stopPacket + 1)
{
m_stopPacket = TexturePacketCount();
}
//Don't reset packet number unless we're waiting or it's ahead of us
if (m_completedSendAtCurrentDiscardLevel || m_requestedPacketNumber>m_packetNumber)
{
m_packetNumber = m_requestedPacketNumber;
}
if (m_packetNumber <= m_stopPacket)
{
m_completedSendAtCurrentDiscardLevel = false;
}
}
}
else
{
m_packetNumber = m_stopPacket;
else
{
m_stopPacket = TexturePacketCount();
}
m_packetNumber = m_requestedPacketNumber;
}
}
}
}
private bool SendPacket(LLClientView client)
{
bool complete = false;
int imagePacketSize = ((int)m_packetNumber == (TexturePacketCount())) ? LastPacketSize() : IMAGE_PACKET_SIZE;
try
{
if ((CurrentBytePosition() + IMAGE_PACKET_SIZE) > m_assetDataLength)
{
imagePacketSize = LastPacketSize();
complete = true;
if ((CurrentBytePosition() + imagePacketSize) > m_assetDataLength)
{
imagePacketSize = m_assetDataLength - 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];
try
{
Buffer.BlockCopy(m_asset.Data, CurrentBytePosition(), imageData, 0, imagePacketSize);
}
catch (Exception e)
{
m_log.Error("Error copying texture block. Out of memory? imagePacketSize was " + imagePacketSize.ToString() + " on packet " + m_packetNumber.ToString() + " out of " + m_stopPacket.ToString() + ". Exception: " + e.ToString());
return false;
}
//Send the packet
client.SendImageNextPart((ushort)(m_packetNumber - 1), m_requestedUUID, imageData);
}
if (complete)
{
return false;
}
else
{
return true;
}
}
catch (Exception)
{
return false;
}
}
private int GetPacketForBytePosition(int bytePosition)
{
return ((bytePosition - FIRST_PACKET_SIZE + IMAGE_PACKET_SIZE - 1) / IMAGE_PACKET_SIZE) + 1;
}
private int LastPacketSize()
{
if (m_packetNumber == 1)
return m_assetDataLength;
int lastsize = (m_assetDataLength - FIRST_PACKET_SIZE) % IMAGE_PACKET_SIZE;
//If the last packet size is zero, it's really cImagePacketSize, it sits on the boundary
if (lastsize == 0)
{
lastsize = IMAGE_PACKET_SIZE;
}
return lastsize;
}
private int CurrentBytePosition()
{
if (m_packetNumber == 0)
return 0;
if (m_packetNumber == 1)
return FIRST_PACKET_SIZE;
int result = FIRST_PACKET_SIZE + ((int)m_packetNumber - 2) * IMAGE_PACKET_SIZE;
if (result < 0)
{
result = FIRST_PACKET_SIZE;
}
return result;
}
private bool SendFirstPacket(LLClientView client)
{
// this means we don't have
if (Data == null)
{
client.SendImageNotFound(m_requestedUUID);
m_log.WarnFormat("[TEXTURE]: Got null Data element on a asset {0}.. and the missing image Data property is al", m_requestedUUID);
return true;
}
// Do we have less then 1 packet's worth of data?
else if (m_assetDataLength <= FIRST_PACKET_SIZE)
{
// Send only 1 packet
client.SendImageFirstPart(1, m_requestedUUID, (uint)m_assetDataLength, m_asset.Data, 2);
m_stopPacket = 0;
return true;
}
else
{
byte[] firstImageData = new byte[FIRST_PACKET_SIZE];
try
{
Buffer.BlockCopy(m_asset.Data, 0, firstImageData, 0, (int)FIRST_PACKET_SIZE);
client.SendImageFirstPart(TexturePacketCount(), m_requestedUUID, (uint)m_assetDataLength, firstImageData, 2);
}
catch (Exception)
{
m_log.Error("Texture block copy failed. Possibly out of memory?");
return true;
}
}
return false;
}
private void J2KDecodedCallback(UUID AssetId, OpenJPEG.J2KLayerInfo[] layers)
{
m_layers = layers;
m_decoded = true;
RunUpdate();
}
private void AssetDataCallback(UUID AssetID, AssetBase asset)
{
m_hasasset = true;
if (asset == null || asset.Data == null)
{
m_asset = null;
m_decoded = true;
}
else
{
m_asset = asset;
m_assetDataLength = m_asset.Data.Length;
}
RunUpdate();
}
private void AssetReceived(string id, Object sender, AssetBase asset)
{
UUID assetID = UUID.Zero;
if (asset != null)
assetID = asset.FullID;
AssetDataCallback(assetID, asset);
}
}
}