protected override TcdSection ReadSection(int number)
{
uint data_size = Input.ReadUInt32();
if (0 == data_size)
{
return(null);
}
var section = new TcdSection {
DataSize = data_size
};
section.Extension = Extensions[number];
section.FileCount = Input.ReadInt32();
section.DirCount = Input.ReadInt32();
section.IndexOffset = Input.ReadUInt32();
section.DirNameLength = Input.ReadInt32();
section.FileNameLength = Input.ReadInt32();
section.DirNamesSize = section.DirNameLength;
section.FileNamesSize = section.FileNameLength;
return(section);
}
public override ArcFile TryOpen(ArcView file)
{
int count = file.View.ReadInt32(4);
if (!IsSaneCount(count))
{
return(null);
}
uint current_offset = 8;
var sections = new List <TcdSection> (5);
for (int i = 0; i < 5; ++i, current_offset += 0x20)
{
uint index_offset = file.View.ReadUInt32(current_offset + 4);
if (0 == index_offset)
{
continue;
}
var section = new TcdSection
{
IndexOffset = index_offset,
DataSize = file.View.ReadUInt32(current_offset),
DirCount = file.View.ReadInt32(current_offset + 8),
DirNameLength = file.View.ReadInt32(current_offset + 0x0C),
FileCount = file.View.ReadInt32(current_offset + 0x10),
FileNameLength = file.View.ReadInt32(current_offset + 0x14),
};
sections.Add(section);
}
var list = new List <Entry> (count);
foreach (var section in sections)
{
current_offset = section.IndexOffset;
uint dir_size = (uint)(section.DirCount * section.DirNameLength);
var dir_names = new byte[dir_size];
if (dir_size != file.View.Read(current_offset, dir_names, 0, dir_size))
{
return(null);
}
current_offset += dir_size;
DecryptNames(dir_names, section.DirNameLength);
var dirs = new TcdDirEntry[section.DirCount];
for (int i = 0; i < dirs.Length; ++i)
{
dirs[i].FileCount = file.View.ReadInt32(current_offset);
dirs[i].NamesOffset = file.View.ReadInt32(current_offset + 4);
dirs[i].FirstIndex = file.View.ReadInt32(current_offset + 8);
current_offset += 0x10;
}
uint entries_size = (uint)(section.FileCount * section.FileNameLength);
var file_names = new byte[entries_size];
if (entries_size != file.View.Read(current_offset, file_names, 0, entries_size))
{
return(null);
}
current_offset += entries_size;
DecryptNames(file_names, section.FileNameLength);
var offsets = new uint[section.FileCount + 1];
for (int i = 0; i < offsets.Length; ++i)
{
offsets[i] = file.View.ReadUInt32(current_offset);
current_offset += 4;
}
int dir_name_offset = 0;
foreach (var dir in dirs)
{
string dir_name = Binary.GetCString(dir_names, dir_name_offset, section.DirNameLength);
dir_name_offset += section.DirNameLength;
int index = dir.FirstIndex;
int name_offset = dir.NamesOffset;
for (int i = 0; i < dir.FileCount; ++i)
{
string name = Binary.GetCString(file_names, name_offset, section.FileNameLength);
name_offset += section.FileNameLength;
name = dir_name + '\\' + name;
var entry = new TcdEntry(index, name, file, offsets[index]);
entry.Size = offsets[index + 1] - offsets[index];
++index;
list.Add(entry);
}
}
}
return(new TcdArchive(file, this, list));
}
