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implemented Nitro+ PAK version 2 archives.

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This commit is contained in:
morkt 2015-08-11 17:44:18 +04:00
parent c20660583e
commit d41c9330f9
2 changed files with 101 additions and 8 deletions
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101
ArcFormats/ArcNitro.cs
View File

@ -38,29 +38,95 @@ namespace GameRes.Formats.NitroPlus
public uint Key;
}
internal class NitroPak : ArcFile
{
public int Version;
public NitroPak (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, int version)
: base (arc, impl, dir)
{
Version = version;
}
}
[Export(typeof(ArchiveFormat))]
public class PakOpener : ArchiveFormat
{
public override string Tag { get { return "PAK/NITRO+"; } }
public override string Description { get { return "Nitro+ resource archive"; } }
public override uint Signature { get { return 0x03; } }
public override bool IsHierarchic { get { return false; } }
public override bool IsHierarchic { get { return true; } }
public override bool CanCreate { get { return false; } }
public PakOpener ()
{
Extensions = new string[] { "pak" };
Signatures = new uint[] { 2, 3 };
}
public override ArcFile TryOpen (ArcView file)
{
byte[] name_buf = new byte[0x100];
int version = file.View.ReadInt32 (0);
List<Entry> dir = null;
if (2 == version)
dir = OpenPakV2 (file);
else if (3 == version)
dir = OpenPakV3 (file);
if (null == dir)
return null;
return new NitroPak (file, this, dir, version);
}
private List<Entry> OpenPakV2 (ArcView file)
{
int count = file.View.ReadInt32 (4);
if (!IsSaneCount (count))
return null;
int unpacked_size = file.View.ReadInt32 (8);
uint packed_size = file.View.ReadUInt32 (0xC);
var input = file.CreateStream (0x114, packed_size);
using (var header_stream = new ZLibStream (input, CompressionMode.Decompress))
using (var header = new BinaryReader (header_stream, Encoding.ASCII, true))
{
long base_offset = 0x114 + packed_size;
var name_buf = new byte[0x40];
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
int name_length = header.ReadInt32();
if (name_length <= 0)
return null;
if (name_length > name_buf.Length)
name_buf = new byte[name_length];
if (name_length != header.Read (name_buf, 0, name_length))
return null;
var name = Encodings.cp932.GetString (name_buf, 0, name_length);
var entry = new PackedEntry { Name = name };
entry.Type = FormatCatalog.Instance.GetTypeFromName (name);
entry.Offset = base_offset + header.ReadUInt32();
entry.UnpackedSize = header.ReadUInt32();
entry.Size = header.ReadUInt32();
entry.IsPacked = header.ReadInt32() != 0;
uint psize = header.ReadUInt32();
if (entry.IsPacked)
entry.Size = psize;
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
}
return dir;
}
}
private List<Entry> OpenPakV3 (ArcView file)
{
if (0x110 > file.View.Reserve (4, 0x110))
return null;
uint size_xor = file.View.ReadUInt32 (0x104);
if (0x64 != size_xor)
return null;
byte[] name_buf = new byte[0x100];
file.View.Read (4, name_buf, 0, 0x100);
int name_len = 0;
for (int i = 0; i < name_buf.Length; ++i)
@ -77,7 +143,7 @@ namespace GameRes.Formats.NitroPlus
uint header_key = GetKey (name_buf, name_len);
uint unpacked = file.View.ReadUInt32 (0x108) ^ header_key;
int count = (int)(file.View.ReadUInt32 (0x10c) ^ header_key);
if (count <= 0 || count > 0xfffff)
if (!IsSaneCount (count))
return null;
var dir = new List<Entry> (count);
@ -112,7 +178,7 @@ namespace GameRes.Formats.NitroPlus
entry.Type = FormatCatalog.Instance.GetTypeFromName (entry.Name);
dir.Add (entry);
}
return new ArcFile (file, this, dir);
return dir;
}
}
@ -130,14 +196,37 @@ namespace GameRes.Formats.NitroPlus
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var pak_entry = entry as PakEntry;
if (null == pak_entry)
if (pak_entry != null)
return OpenV3Entry (arc, pak_entry);
var packed_entry = entry as PackedEntry;
if (packed_entry != null && packed_entry.IsPacked)
return UnpackV2Entry (arc, packed_entry);
return arc.File.CreateStream (entry.Offset, entry.Size);
}
private Stream UnpackV2Entry (ArcFile arc, PackedEntry entry)
{
var input = arc.File.CreateStream (entry.Offset, entry.Size);
try
{
return new ZLibStream (input, CompressionMode.Decompress);
}
catch
{
input.Dispose();
throw;
}
}
private Stream OpenV3Entry (ArcFile arc, PakEntry entry)
{
uint enc_size = Math.Min (entry.Size, 0x10u);
if (0 == enc_size)
return Stream.Null;
var buf = new byte[enc_size];
arc.File.View.Read (entry.Offset, buf, 0, enc_size);
uint key = pak_entry.Key;
uint key = entry.Key;
for (int i = 0; i < buf.Length; ++i)
{
buf[i] ^= (byte)key;

6
supported.html
View File

@ -74,6 +74,7 @@ Axanael<br/>
Chaos;Head<br/>
DRAMAtical Murder<br/>
Demonbane<br/>
Jingai Makyou<br/>
Kikokugai<br/>
Kimi to Kanojo to Kanojo no Koi<br/>
Lamento<br/>
@ -133,7 +134,10 @@ Swan Song<br/>
<tr class="odd"><td>*.ypf</td><td><tt>YPF</tt></td><td>Yes</td><td>Clock Up</td><td>Eroge! ~H mo Game mo Kaihatsu Zanmai~</td></tr>
<tr><td>*.isa</td><td><tt>ISM ARCHIVED</tt></td><td>No</td><td rowspan="2">ISM</td><td rowspan="2">Green ~Akizora no Screen~</td></tr>
<tr><td>*.isg</td><td><tt>ISM IMAGEFILE</tt></td><td>No</td></tr>
<tr class="odd"><td>*.dat</td><td>-</td><td>No</td><td rowspan="2">Black Rainbow</td><td rowspan="2">Saiminjutsu</td></tr>
<tr class="odd"><td>*.dat<br/>*.pak</td><td>-</td><td>No</td><td rowspan="2">Black Rainbow</td><td rowspan="2">
Gadget<br/>
Saiminjutsu<br/>
</td></tr>
<tr class="odd"><td>*.bmd</td><td><tt>_BMD</tt></td><td>Yes</td></tr>
<tr><td>*.dat</td><td>-</td><td>Yes</td><td>Studio e.go!</td><td>Men at Work 2</td></tr>
<tr class="odd"><td>*.mbl</td><td>-</td><td>No</td><td rowspan="3">Marble</td><td rowspan="3">