/// <summary>
/// Parse the file table.
/// </summary>
/// <returns>Number of files found.</returns>
public override int ParseFileTable()
{
// Set correct position for data section
this.dataCluster = this.tableCluster +
((this.numFiles * 16) / this.clusterSize);
if ((this.numFiles * 16) % this.clusterSize != 0)
{
this.dataCluster++;
}
long offset = this.clusterSize * this.tableCluster;
this.fileTable = new List <FileItem>();
string fileNameBase;
{ // Get file name base
int fileNameStart = this.container.Name.LastIndexOf('\\') + 1;
int fileNameEnd = this.container.Name.LastIndexOf('.');
if (fileNameEnd == -1)
{
fileNameEnd = this.container.Name.Length;
}
fileNameBase = this.container.Name.Substring(fileNameStart, fileNameEnd - fileNameStart);
}
while (true)
{
Uni2FileItem item = new Uni2FileItem();
item.fileId = StreamUtility.ReadUIntFromStream(this.container, offset);
item.startCluster = StreamUtility.ReadUIntFromStream(this.container, offset + 4);
item.lengthCluster = StreamUtility.ReadUIntFromStream(this.container, offset + 8);
item.lengthByte = StreamUtility.ReadUIntFromStream(this.container, offset + 12);
offset += 16;
if (item.isValid())
{
FileItem FileItem = ConvertUni2ToGeneral(item, fileNameBase + "-" + Convert.ToSingle(item.fileId));
uint fileIdentifier = StreamUtility.ReadUIntFromStream(this.container, FileItem.FileOffset);
string fileExt = StreamUtility.GetFileExtension(fileIdentifier);
FileItem.FileName += "." + fileExt;
fileTable.Add(FileItem);
}
else
{
break;
}
}
if (fileTable.Count != this.numFiles)
{
throw new FormatException(this.container.Name + ": The real number of files doesn't match the header value!" + System.Environment.NewLine +
"The header indicated: " + Convert.ToString(this.numFiles) + System.Environment.NewLine +
"The real number of files: " + Convert.ToString(fileTable.Count));
}
return(fileTable.Count);
}
private FileItem ConvertUni2ToGeneral(Uni2FileItem item, string fileName)
{
FileItem FileItem = new FileItem(this.container);
FileItem.FileName = fileName;
FileItem.FileOffset = (item.startCluster + this.dataCluster) * this.clusterSize;
FileItem.FileSize = item.lengthByte;
return(FileItem);
}
private Uni2FileItem ConvertGeneralToUni2(FileItem item, uint fileId)
{
Uni2FileItem FileItem = new Uni2FileItem();
FileItem.fileId = fileId;
FileItem.startCluster = (uint)(item.FileOffset / this.clusterSize - this.dataCluster);
FileItem.lengthCluster = item.FileSize / this.clusterSize;
if (item.FileSize % this.clusterSize != 0)
{
FileItem.lengthCluster++;
}
FileItem.lengthByte = item.FileSize;
return(FileItem);
}
