private void extractSingleFST(UInt16 entry, string parent)
{
if (!Directory.Exists(extractPath))
{
Directory.CreateDirectory(extractPath);
}
fst_t fst = getFST(entry);
switch (fst.mode)
{
case 0:
extractDir(fst, entry, parent);
break;
case 1:
extractFile(fst, entry, parent);
break;
default:
msg_Error(String.Format("Ignoring unsupported mode {0}.\n\t\t(FST entry #{1})",
fst.mode,
entry.ToString("x4")));
break;
}
}
private void addEntry(fst_t fst, UInt16 entry, UInt16 parent)
{
string details;
string[] modes = { "d|", "f|" };
TreeNode[] node = fileView.Nodes.Find(parent.ToString("x4"), true);
details = ASCIIEncoding.ASCII.GetString(fst.filename).Replace("\0", " ");
details += txtPadLeft(modes[fst.mode], 5);
details += txtPadRight(fst.attr.ToString(), 3);
details += string.Format("{0}:{1}",
fst.uid.ToString("x4").ToUpper(),
fst.gid.ToString("x4").ToUpper());
if (fst.size > 0)
{
details += txtPadLeft(fst.size.ToString("d"), 11) + "B";
}
if (entry != 0)
{
if (node.Count() > 0)
{
node[0].Nodes.Add(entry.ToString("x4"), details, fst.mode, fst.mode);
}
else
{
fileView.Nodes.Add(entry.ToString("x4"), details, fst.mode, fst.mode);
}
}
if (fst.mode == 0 && fst.sub != 0xffff)
{
viewFST(fst.sub, entry);
}
}
private void extractFST(UInt16 entry, string parent)
{
fst_t fst = getFST(entry);
if (fst.sib != 0xffff)
{
extractFST(fst.sib, parent);
}
switch (fst.mode)
{
case 0:
extractDir(fst, entry, parent);
break;
case 1:
extractFile(fst, entry, parent);
break;
default:
msg_Error(String.Format("Ignoring unsupported mode {0}.\n\t\t(FST entry #{1})",
fst.mode,
entry.ToString("x4")));
break;
}
}
/*
* Viewer functions.
*/
private void viewFST(UInt16 entry, UInt16 parent)
{
fst_t fst = getFST(entry);
if (fst.sib != 0xffff)
{
viewFST(fst.sib, parent);
}
addEntry(fst, entry, parent);
info.Items["size"].Text = (Convert.ToInt32(info.Items["size"].Text) + (int)fst.size).ToString();
info.Items["files"].Text = (Convert.ToInt32(info.Items["files"].Text) + 1).ToString();
Application.DoEvents();
}
private static void extractDir(fst_t fst, UInt16 entry, string parent)
{
string filename = ASCIIEncoding.ASCII.GetString(fst.filename).Replace("\0", string.Empty);
if (filename != "/")
{
if (parent != "/" && parent != "")
{
filename = parent + "\\" + filename;
}
Directory.CreateDirectory(extractPath + "\\" + filename);
}
if (fst.sub != 0xffff)
{
extractFST(fst.sub, filename);
}
}
private static void extractFile(fst_t fst, UInt16 entry, string parent)
{
UInt16 fat;
int cluster_span = (int)(fst.size / 0x4000) + 1;
byte[] cluster = new byte[0x4000],
data = new byte[cluster_span * 0x4000];
string filename = "/" + parent + "/" +
ASCIIEncoding.ASCII.GetString(fst.filename).
Replace("\0", string.Empty).
Replace(":", "-");
Console.WriteLine("Extracting " + filename);
try
{
BinaryWriter bw = new BinaryWriter(File.Open(extractPath + filename,
FileMode.Create,
FileAccess.Write,
FileShare.Read),
Encoding.ASCII);
fat = fst.sub;
for (int i = 0; fat < 0xFFF0; i++)
{
Buffer.BlockCopy(getCluster(fat), 0, data, i * 0x4000, 0x4000);
fat = getFAT(fat);
}
bw.Write(data, 0, (int)fst.size);
bw.Close();
}
catch
{
//msg_Error(string.Format("Can't open file for writing:\n{0}",
// extractPath + filename));
throw new Exception(string.Format("Can't open file: {0}", extractPath + filename));
}
}
private static void extractFST(UInt16 entry, string parent)
{
fst_t fst = getFST(entry);
if (fst.sib != 0xffff)
{
extractFST(fst.sib, parent);
}
switch (fst.mode)
{
case 0:
extractDir(fst, entry, parent);
break;
case 1:
extractFile(fst, entry, parent);
break;
default:
break;
}
}
private fst_t getFST(UInt16 entry)
{
fst_t fst = new fst_t();
// compensate for 64 bytes of ecc data every 64 fst entries
Int32 n_fst = (fileType == FileType.NoECC) ? 0 : 2;
int loc_entry = (((entry / 0x40) * n_fst) + entry) * 0x20;
rom.BaseStream.Seek(loc_fst + loc_entry, SeekOrigin.Begin);
fst.filename = rom.ReadBytes(0x0C);
fst.mode = rom.ReadByte();
fst.attr = rom.ReadByte();
fst.sub = bswap(rom.ReadUInt16());
fst.sib = bswap(rom.ReadUInt16());
fst.size = bswap(rom.ReadUInt32());
fst.uid = bswap(rom.ReadUInt32());
fst.gid = bswap(rom.ReadUInt16());
fst.x3 = bswap(rom.ReadUInt32());
fst.mode &= 1;
return(fst);
}
private static fst_t getFST(UInt16 entry)
{
fst_t fst = new fst_t();
// compensate for 64 bytes of ecc data every 64 fst entries
Int32[] n_fst = { 0, 2, 2 };
int loc_entry = (((entry / 0x40) * n_fst[type]) + entry) * 0x20;
rom.BaseStream.Seek(loc_fst + loc_entry, SeekOrigin.Begin);
fst.filename = rom.ReadBytes(0x0C);
fst.mode = rom.ReadByte();
fst.attr = rom.ReadByte();
fst.sub = bswap(rom.ReadUInt16());
fst.sib = bswap(rom.ReadUInt16());
fst.size = bswap(rom.ReadUInt32());
fst.uid = bswap(rom.ReadUInt32());
fst.gid = bswap(rom.ReadUInt16());
fst.x3 = bswap(rom.ReadUInt32());
fst.mode &= 1;
return fst;
}
private static void extractFile(fst_t fst, UInt16 entry, string parent)
{
UInt16 fat;
int cluster_span = (int)(fst.size / 0x4000) + 1;
byte[] cluster = new byte[0x4000],
data = new byte[cluster_span * 0x4000];
string filename = "/" + parent + "/" +
ASCIIEncoding.ASCII.GetString(fst.filename).
Replace("\0", string.Empty).
Replace(":", "-");
Console.WriteLine("Extracting " + filename);
try
{
BinaryWriter bw = new BinaryWriter(File.Open(extractPath + filename,
FileMode.Create,
FileAccess.Write,
FileShare.Read),
Encoding.ASCII);
fat = fst.sub;
for (int i = 0; fat < 0xFFF0; i++)
{
Buffer.BlockCopy(getCluster(fat), 0, data, i * 0x4000, 0x4000);
fat = getFAT(fat);
}
bw.Write(data, 0, (int)fst.size);
bw.Close();
}
catch
{
//msg_Error(string.Format("Can't open file for writing:\n{0}",
// extractPath + filename));
throw new Exception(string.Format("Can't open file: {0}", extractPath + filename));
}
}
private static void extractDir(fst_t fst, UInt16 entry, string parent)
{
string filename = ASCIIEncoding.ASCII.GetString(fst.filename).Replace("\0", string.Empty);
if (filename != "/")
{
if (parent != "/" && parent != "")
filename = parent + "/" + filename;
Directory.CreateDirectory(extractPath + "/" + filename);
}
if (fst.sub != 0xffff)
extractFST(fst.sub, filename);
}
