public override ArcFile TryOpen(ArcView file)
{
int count = file.View.ReadInt32(0);
if ((count & 0xFFFF) != 0)
{
return(null);
}
count = (count >> 16) - 1;
if (!IsSaneCount(count))
{
return(null);
}
uint index_offset = 0xC;
var dir = new List <Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = file.View.ReadUInt32(index_offset).ToString("D5");
var entry = new PackedEntry {
Name = name,
Offset = file.View.ReadUInt32(index_offset + 4) << 11,
Size = file.View.ReadUInt32(index_offset + 8),
};
if (!entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
dir.Add(entry);
index_offset += 12;
}
foreach (PackedEntry entry in dir)
{
uint signature;
if (entry.Size > 13 && file.View.AsciiEqual(entry.Offset + 2, "ike"))
{
int unpacked_size = IkeReader.DecodeSize(file.View.ReadByte(entry.Offset + 10),
file.View.ReadByte(entry.Offset + 11),
file.View.ReadByte(entry.Offset + 12));
entry.IsPacked = true;
entry.UnpackedSize = (uint)unpacked_size;
signature = file.View.ReadUInt32(entry.Offset + 0xF);
entry.Offset += 13;
entry.Size -= 13;
}
else
{
signature = file.View.ReadUInt32(entry.Offset);
}
entry.ChangeType(AutoEntry.DetectFileType(signature));
}
return(new ArcFile(file, this, dir));
}
public override ArcFile TryOpen(ArcView file)
{
int count = file.View.ReadInt32(0);
if (!IsSaneCount(count))
{
return(null);
}
var base_name = Path.GetFileNameWithoutExtension(file.Name);
int index_offset = 4;
int index_end = 4 + 8 * count;
var dir = new List <Entry> (count);
for (int i = 0; i < count; ++i)
{
var entry = new PackedEntry
{
Offset = file.View.ReadUInt32(index_offset),
Size = file.View.ReadUInt32(index_offset + 4),
};
if (entry.Offset < index_end || !entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
entry.Name = string.Format("{0}#{1:D5}", base_name, i);
dir.Add(entry);
index_offset += 8;
}
foreach (PackedEntry entry in dir)
{
var n = file.View.ReadInt32(entry.Offset);
if (n <= 0)
{
return(null);
}
var offset = file.View.ReadUInt32(entry.Offset + 4);
var size = file.View.ReadUInt32(entry.Offset + 8);
entry.Offset += offset;
entry.Size = size & 0x3FFFFFFF;
entry.IsPacked = 2 != (size >> 30);
if (!entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
var res = AutoEntry.DetectFileType(file.View.ReadUInt32(entry.Offset));
if (res != null)
{
entry.ChangeType(res);
}
}
return(new ArcFile(file, this, dir));
}
public override ArcFile TryOpen(ArcView file)
{
int count = file.View.ReadInt32(0);
if (!IsSaneCount(count))
{
return(null);
}
uint first_offset = file.View.ReadUInt32(4);
if (4 + count * 8 != first_offset)
{
return(null);
}
var base_name = Path.GetFileNameWithoutExtension(file.Name);
bool is_msg = base_name == "msg";
uint index_offset = 4;
var dir = new List <Entry> (count);
for (int i = 0; i < count; ++i)
{
uint offset = file.View.ReadUInt32(index_offset);
uint size = file.View.ReadUInt32(index_offset + 4);
var entry = new PackedEntry {
Name = string.Format("{0}#{1:D5}", base_name, i),
Offset = offset,
Size = size,
};
if (!is_msg && !entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
dir.Add(entry);
index_offset += 8;
}
foreach (PackedEntry entry in dir)
{
if (is_msg)
{
uint size = file.View.ReadUInt32(entry.Offset);
entry.Offset += 4;
entry.UnpackedSize = entry.Size;
entry.Size = size;
entry.IsPacked = true;
if (!entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
continue;
}
uint pos = file.View.ReadUInt32(entry.Offset + 4);
if (pos > entry.Size)
{
continue;
}
uint unpacked_size = file.View.ReadUInt32(entry.Offset + 8);
uint flags = unpacked_size >> 30;
unpacked_size &= 0x3FFFFFFF;
entry.IsPacked = 0 == flags;
uint signature = 0;
if (entry.IsPacked)
{
entry.UnpackedSize = unpacked_size;
entry.Size = file.View.ReadUInt32(entry.Offset + pos);
entry.Offset += pos + 4;
if ((file.View.ReadByte(entry.Offset) & 0xF) == 0xF)
{
signature = file.View.ReadUInt32(entry.Offset + 1);
}
}
else
{
entry.Size = unpacked_size;
entry.Offset += pos;
signature = file.View.ReadUInt32(entry.Offset);
}
var res = AutoEntry.DetectFileType(signature);
if (res != null)
{
entry.ChangeType(res);
}
}
return(new ArcFile(file, this, dir));
}
public override ArcFile TryOpen(ArcView file)
{
if (!file.View.AsciiEqual(4, "OFST"))
{
return(null);
}
int index_size = file.View.ReadInt32(8);
int count = index_size / 4;
if (!IsSaneCount(count))
{
return(null);
}
var base_name = Path.GetFileNameWithoutExtension(file.Name);
string content_ext = "", content_type = "";
if (base_name.EndsWith("flac", StringComparison.InvariantCultureIgnoreCase))
{
content_ext = "flac";
content_type = "audio";
base_name = base_name.Substring(0, base_name.Length - 4);
}
else if (base_name.EndsWith("ogg", StringComparison.InvariantCultureIgnoreCase))
{
content_ext = "ogg";
content_type = "audio";
base_name = base_name.Substring(0, base_name.Length - 3);
}
var filenames = GetFileNames(VFS.GetDirectoryName(file.Name), base_name);
if (null == filenames)
{
filenames = new List <string> (count);
}
for (int i = filenames.Count; i < count; ++i)
{
filenames.Add(string.Format("{0}#{1:D5}", base_name, i));
}
uint index_offset = 0xC;
var dir = new List <Entry> (count);
uint next_offset = file.View.ReadUInt32(index_offset);
for (int i = 0; i < count; ++i)
{
index_offset += 4;
var entry = new PackedEntry {
Name = filenames[i]
};
entry.Offset = next_offset;
next_offset = i + 1 < count?file.View.ReadUInt32(index_offset) : (uint)file.MaxOffset;
entry.Size = next_offset - (uint)entry.Offset;
if (entry.Size > 0 && !entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
if (!string.IsNullOrEmpty(content_type))
{
entry.Type = content_type;
entry.Name = Path.ChangeExtension(entry.Name, content_ext);
}
dir.Add(entry);
}
foreach (PackedEntry entry in dir.Where(e => e.Size > 4))
{
entry.IsPacked = file.View.AsciiEqual(entry.Offset, "DFLT");
if (entry.IsPacked)
{
entry.Size = file.View.ReadUInt32(entry.Offset + 4);
entry.UnpackedSize = file.View.ReadUInt32(entry.Offset + 8);
entry.Offset += 12;
}
else if (file.View.AsciiEqual(entry.Offset, "DATA"))
{
entry.Size = file.View.ReadUInt32(entry.Offset + 4);
entry.UnpackedSize = entry.Size;
entry.Offset += 8;
if (string.IsNullOrEmpty(entry.Type))
{
uint signature = file.View.ReadUInt32(entry.Offset);
if (0x43614C66 == signature) // 'fLaC'
{
entry.Type = "audio";
entry.Name = Path.ChangeExtension(entry.Name, "flac");
}
else
{
var res = AutoEntry.DetectFileType(signature);
if (null != res)
{
entry.ChangeType(res);
}
}
}
}
}
return(new ArcFile(file, this, dir));
}
public override ArcFile TryOpen(ArcView file)
{
int count = file.View.ReadInt32(0);
if (!IsSaneCount(count))
{
return(null);
}
uint index_size = (uint)count * 4 + 8;
if (index_size > file.View.Reserve(0, index_size))
{
return(null);
}
uint index_offset = 4;
uint offset = file.View.ReadUInt32(index_offset);
if (offset != index_size)
{
return(null);
}
uint last_offset = file.View.ReadUInt32(index_size - 4);
if (last_offset != file.MaxOffset)
{
return(null);
}
string default_type = "";
if (file.Name.HasExtension("fx"))
{
default_type = "audio";
}
else if (file.Name.HasExtension("gx"))
{
default_type = "image";
}
var base_name = Path.GetFileNameWithoutExtension(file.Name);
var dir = new List <Entry> (count);
for (int i = 0; i < count; ++i)
{
index_offset += 4;
var entry = new PackedEntry {
Name = string.Format("{0}#{1:D4}", base_name, i),
Type = default_type,
Offset = offset,
};
offset = file.View.ReadUInt32(index_offset);
entry.Size = (uint)(offset - entry.Offset);
if (!entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
dir.Add(entry);
}
if (string.IsNullOrEmpty(default_type))
{
foreach (var entry in dir)
{
uint signature = file.View.ReadUInt32(entry.Offset);
entry.ChangeType(AutoEntry.DetectFileType(signature));
}
}
return(new ArcFile(file, this, dir));
}
