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();
}
}
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"];
}
}
}
}
private Byte[] ReadFrameData(HalfLifeDemoParser.FrameHeader frameHeader, out Boolean writeFrame)
{
Byte[] result = null;
writeFrame = true;
if (frameHeader.Type == 0 || frameHeader.Type == 1)
{
// frame header
Byte[] frameHeaderDemoInfo = parser.Reader.ReadBytes(parser.GameDataDemoInfoLength);
Byte[] frameHeaderSequenceInfo = parser.Reader.ReadBytes(parser.GameDataSequenceInfoLength);
UInt32 gameDataLength = parser.Reader.ReadUInt32();
// frame data
Byte[] frameData = null;
if (gameDataLength != 0)
{
// read frame data
frameData = parser.Reader.ReadBytes((Int32)gameDataLength);
if (frameData.Length != gameDataLength)
{
throw new ApplicationException("Gamedata frame length doesn't match header.");
}
// Give the writer interface a chance to insert any new messages into the first gamedata frame.
if (frameHeader.Type == 1 && !foundPlaybackOffset)
{
demoWriterInterface.ProcessFirstGameDataFrame(ref frameData);
}
// parse frame messages
try
{
if (demoWriterInterface.ShouldParseGameDataMessages(frameHeader.Type))
{
parser.ParseGameDataMessages(frameData, demoWriterInterface.GetNewUserMessageId);
// set frame data to version modified by parsing
frameData = parser.BitBuffer.Data;
}
}
catch (ThreadAbortException)
{
throw;
}
catch (Exception ex)
{
Error("Error parsing gamedata frame.\n\n" + parser.ComputeMessageLog(), ex, true);
if (lastErrorResult != MessageWindow.Result.Continue)
{
throw new AbortWritingException();
}
else
{
writeFrame = false;
return(null);
}
}
}
// check for end of loading segment
if (frameHeader.Type == 1)
{
if (!foundPlaybackOffset)
{
// last 5 frame (end of segment) will have stored the correct offset
foundPlaybackOffset = true;
}
// count playback segment gamedata frames
nPlaybackFrames++;
}
// copy contents of frame into memorystream, return result
MemoryStream ms = new MemoryStream();
demoWriterInterface.WriteDemoInfo(frameHeaderDemoInfo, ms);
ms.Write(frameHeaderSequenceInfo, 0, frameHeaderSequenceInfo.Length);
if (gameDataLength == 0)
{
ms.Write(BitConverter.GetBytes(gameDataLength), 0, 4);
}
else
{
ms.Write(BitConverter.GetBytes(frameData.Length), 0, 4);
ms.Write(frameData, 0, frameData.Length);
}
return(ms.ToArray());
}
else if (frameHeader.Type == 3) // client command
{
String command = Common.ReadNullTerminatedString(parser.Reader, 64);
if (!demoWriterInterface.ShouldWriteClientCommand(command))
{
// don't write frame
writeFrame = false;
return(null);
}
parser.Seek(-64);
result = parser.Reader.ReadBytes(64);
if (result.Length != 64)
{
throw new ApplicationException("Unexpected client command frame data length.");
}
}
else if (Config.Settings.PlaybackRemoveWeaponAnimations && frameHeader.Type == 7)
{
parser.Seek(8);
writeFrame = false;
return(null);
}
else if (frameHeader.Type != 5)
{
Int32 frameLength = parser.GetFrameLength(frameHeader.Type);
if (frameLength != 0)
{
result = parser.Reader.ReadBytes(frameLength);
if (result.Length != frameLength)
{
throw new ApplicationException("Unexpected frame data length.");
}
}
}
return(result);
}