private void ReadingThreadWorker()
{
FileStream fs = null;
BinaryReader br = null;
// read header
try
{
fs = File.OpenRead(FileFullPath);
br = new BinaryReader(fs);
fileLengthInBytes = fs.Length;
if (fileLengthInBytes < HeaderSizeInBytes)
{
throw new ApplicationException("File length is too short to parse the header.");
}
ReadHeader(br);
}
finally
{
if (br != null)
{
br.Close();
}
if (fs != null)
{
fs.Close();
}
}
// create parser
parser = new HalfLifeDemoParser(this);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_setview, ReadMessageSetView);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_print, ReadMessagePrint);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_serverinfo, ReadMessageServerInfo);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_updateuserinfo, ReadMessageUpdateUserInfo);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_hltv, ReadMessageHltv);
parser.Open();
parser.Seek(HeaderSizeInBytes); // seek past header
try
{
// read and parse frames until the end of the loading segment
while (true)
{
HalfLifeDemoParser.FrameHeader frameHeader = parser.ReadFrameHeader();
// "no loading segment" bug
if (frameHeader.Type == 1)
{
if (serverInfoParsed)
{
break;
}
}
if (frameHeader.Type == 0 || frameHeader.Type == 1)
{
HalfLifeDemoParser.GameDataFrameHeader gameDataFrameHeader = parser.ReadGameDataFrameHeader();
if (gameDataFrameHeader.Length > 0)
{
Byte[] frameData = parser.Reader.ReadBytes((Int32)gameDataFrameHeader.Length);
try
{
parser.ParseGameDataMessages(frameData);
}
catch (ThreadAbortException)
{
throw;
}
catch (Exception ex)
{
throw new ApplicationException("Error parsing gamedata frame.\n\n" + parser.ComputeMessageLog(), ex);
}
}
}
else
{
parser.SkipFrame(frameHeader.Type);
}
}
}
finally
{
parser.Close();
}
// get demo recorder's name
if (perspective == Perspectives.Pov)
{
foreach (Player p in playerList)
{
if (p.Slot == recorderSlot)
{
recorderName = p.InfoKeys["name"];
}
}
}
}
/// <summary>
/// Writes the demo to the destination folder while performing modifications such as removing the scoreboard or fade to black, possibly converting messages to the current network protocol, as well as re-writing directory entries.
/// </summary>
/// <param name="_destinationPath">The destination folder.</param>
protected override void WritingThread(object _destinationFileName)
{
firstFrameToWriteIndex = 0;
try
{
/*
* Converted demos: pre-process the loading segment and get the frame index of the last
* svc_serverinfo message in the loading segment.
*
* This fixes several bugs:
* 1. long (for Half-Life) loading times, since the resources of several maps may be
* loaded.
*
* 2. wrong map in resource list
*
* 3. random SendAudio CTD (indirectly)
*/
if (ConvertNetworkProtocol() && !IsBetaSteam())
{
currentFrameIndex = 0;
// initialise parser
parser = new HalfLifeDemoParser(this);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_serverinfo, PreWriteMessageServerInfo);
parser.Open();
try
{
parser.Seek(HeaderSizeInBytes);
while (true)
{
HalfLifeDemoParser.FrameHeader frameHeader = parser.ReadFrameHeader();
if (frameHeader.Type == 1)
{
break;
}
if (frameHeader.Type == 0)
{
HalfLifeDemoParser.GameDataFrameHeader gameDataFrameHeader = parser.ReadGameDataFrameHeader();
Byte[] frameData = parser.Reader.ReadBytes((Int32)gameDataFrameHeader.Length);
parser.ParseGameDataMessages(frameData);
}
else if (frameHeader.Type != 5)
{
parser.SkipFrame(frameHeader.Type);
}
currentFrameIndex++;
}
}
finally
{
parser.Close();
}
}
// demo writer
HalfLifeDemoConverter demoConverter = new HalfLifeDemoConverter(this);
HalfLifeDemoWriter demoWriter = new HalfLifeDemoWriter(this, (IHalfLifeDemoWriter)demoConverter, writeProgressWindowInterface, firstFrameToWriteIndex);
demoWriter.ThreadWorker((String)_destinationFileName);
}
catch (ThreadAbortException)
{
throw;
}
catch (HalfLifeDemoWriter.AbortWritingException)
{
writeProgressWindowInterface.CloseWithResult(false);
return;
}
catch (Exception ex)
{
writeProgressWindowInterface.Error("Error writing demo file \"" + fileFullPath + "\".", ex, false, null);
writeProgressWindowInterface.CloseWithResult(false);
return;
}
writeProgressWindowInterface.CloseWithResult(true);
}
public void Parse()
{
parser = new HalfLifeDemoParser(demo);
// add svc message handlers
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_print, MessagePrint);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_stufftext, MessageStuffText);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_serverinfo, MessageServerInfo);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_updateuserinfo, MessageUpdateUserInfo);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_pings, MessagePings);
parser.AddMessageHandler((Byte)HalfLifeDemoParser.MessageId.svc_event_reliable, MessageEventReliable);
// add user message handlers
parser.AddUserMessageHandler("SayText", MessageSayText);
parser.AddUserMessageHandler("TextMsg", MessageTextMsg);
parser.AddUserMessageHandler("ResetHUD", MessageResetHUD);
parser.AddUserMessageHandler("DeathMsg", MessageDeathMsg);
parser.AddUserMessageHandler("ScoreInfo", MessageScoreInfo);
parser.AddUserMessageHandler("TeamInfo", MessageTeamInfo);
parser.AddUserMessageHandler("TeamScore", MessageTeamScore);
parser.Open();
parser.Seek(HalfLifeDemo.HeaderSizeInBytes); // seek past header
Int32 percentRead = 0;
Boolean foundPlaybackSegment = false;
try
{
while (true)
{
HalfLifeDemoParser.FrameHeader frameHeader = parser.ReadFrameHeader();
if (frameHeader.Type == 0 || frameHeader.Type == 1)
{
if (!foundPlaybackSegment && frameHeader.Type == 1)
{
foundPlaybackSegment = true;
}
HalfLifeDemoParser.GameDataFrameHeader gameDataFrameHeader = parser.ReadGameDataFrameHeader();
currentTimestamp = frameHeader.Timestamp;
// length can be 0
// e.g. GotFrag Demo 15111 (volcano vs 4k).zip
if (gameDataFrameHeader.Length > 0)
{
Byte[] frameData = parser.Reader.ReadBytes((Int32)gameDataFrameHeader.Length);
if (frameData.Length != gameDataFrameHeader.Length)
{
throw new ApplicationException("Gamedata frame length doesn't match header.");
}
try
{
parser.ParseGameDataMessages(frameData);
}
catch (ThreadAbortException)
{
throw;
}
catch (Exception ex)
{
throw new ApplicationException("Message parsing error.\n\n" + parser.ComputeMessageLog(), ex);
}
}
}
else if (frameHeader.Type == 5) // end of segment
{
if (foundPlaybackSegment)
{
progressWindowInterface.UpdateProgress(100);
break;
}
}
else
{
parser.SkipFrame(frameHeader.Type);
}
// calculate what percent of the file has been read
Int32 oldPercentRead = percentRead;
percentRead = (Int32)(parser.Position / (Single)parser.FileLength * 100.0f);
if (percentRead != oldPercentRead)
{
progressWindowInterface.UpdateProgress(percentRead);
}
}
}
finally
{
parser.Close();
}
}
