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(SakanaGL): support new version

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This commit is contained in:
Crsky 2023-01-09 16:31:09 +08:00
parent 99778823f1
commit 1ab7087fe7
1 changed files with 40 additions and 9 deletions
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49
Experimental/SakanaGL/ArcSX.cs
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@ -28,17 +28,25 @@ using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Linq;
using System.Text;
namespace GameRes.Formats.Sakana
{
internal class SxEntry : PackedEntry
{
public int Storage;
public ushort Flags;
public bool IsEncrypted { get { return 0 == (Flags & 0x10); } }
}
internal class SxStorage
{
public uint Size;
public ulong Timestamp;
}
[Export(typeof(ArchiveFormat))]
public class SxOpener : ArchiveFormat
{
@ -52,9 +60,7 @@ namespace GameRes.Formats.Sakana
public override ArcFile TryOpen (ArcView file)
{
var base_name = Path.GetFileName (file.Name);
var sx_name = base_name.Substring (0, 4) + "(00).sx";
sx_name = VFS.ChangeFileName (file.Name, sx_name);
var sx_name = FindSxName (file.Name);
if (!VFS.FileExists (sx_name) || file.Name.Equals (sx_name, StringComparison.InvariantCultureIgnoreCase))
return null;
byte[] index_data;
@ -140,6 +146,20 @@ namespace GameRes.Formats.Sakana
}
}
}
internal static string FindSxName(string name)
{
var base_name = Path.GetFileName (name);
var file_name = Path.GetFileNameWithoutExtension (base_name);
for (var i = 1; i <= file_name.Length; i++)
{
var sx_name = file_name.Substring (0, i) + "(00).sx";
sx_name = VFS.ChangeFileName (name, sx_name);
if (VFS.FileExists (sx_name))
return sx_name;
}
return name;
}
}
internal class SxIndexDeserializer
@ -170,36 +190,47 @@ namespace GameRes.Formats.Sakana
m_dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
m_index.ReadUInt16();
m_index.ReadByte();
int storage = m_index.ReadByte();
ushort flags = Binary.BigEndian (m_index.ReadUInt16());
uint offset = Binary.BigEndian (m_index.ReadUInt32());
uint size = Binary.BigEndian (m_index.ReadUInt32());
var entry = new SxEntry {
Storage = storage,
Flags = flags,
Offset = (long)offset << 4,
Size = size,
IsPacked = 0 != (flags & 0x03),
};
if (!entry.CheckPlacement (m_max_offset))
return null;
m_dir.Add (entry);
}
count = Binary.BigEndian (m_index.ReadUInt16());
var storages = new List<SxStorage>(count);
for (int i = 0; i < count; ++i)
{
m_index.ReadUInt32();
m_index.ReadUInt32();
m_index.ReadUInt32();
Binary.BigEndian (m_index.ReadUInt32()); // archive body length
m_index.ReadUInt64();
m_index.Seek (16, SeekOrigin.Current); // MD5 sum
var storage = new SxStorage {
Size = Binary.BigEndian (m_index.ReadUInt32()) << 4,
Timestamp = Binary.BigEndian (m_index.ReadUInt64()),
};
storages.Add (storage);
m_index.Seek (16, SeekOrigin.Current); // MD5
}
count = Binary.BigEndian (m_index.ReadUInt16());
if (count > 0)
m_index.Seek (count * 24, SeekOrigin.Current);
DeserializeTree();
// Remove entries in other archives
// Note using file size as archive identification can be problematic, but faster than MD5
var current_storage = storages.FindIndex (s => m_max_offset == s.Size);
if (-1 != current_storage)
{
m_dir = m_dir.Where (e => e.CheckPlacement (m_max_offset) && (e as SxEntry).Storage == current_storage).ToList();
}
return m_dir;
}