mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-19 01:14:13 +08:00
226 lines
8.7 KiB
C#
226 lines
8.7 KiB
C#
//! \file ArcDAT.cs
|
|
//! \date 2018 Sep 20
|
|
//! \brief Lazycrew resource archive.
|
|
//
|
|
// Copyright (C) 2018 by morkt
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to
|
|
// deal in the Software without restriction, including without limitation the
|
|
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
// sell copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
// IN THE SOFTWARE.
|
|
//
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.ComponentModel.Composition;
|
|
using System.IO;
|
|
using System.Text.RegularExpressions;
|
|
using GameRes.Utility;
|
|
|
|
// [031024][Lazycrew] Sister Mermaid
|
|
// [020927][Ga-Bang] Sorairo Memories
|
|
|
|
namespace GameRes.Formats.Lazycrew
|
|
{
|
|
internal class DirEntry
|
|
{
|
|
public string Name;
|
|
public int Offset;
|
|
public int Count;
|
|
}
|
|
|
|
[Export(typeof(ArchiveFormat))]
|
|
public class DatOpener : ArchiveFormat
|
|
{
|
|
public override string Tag { get { return "DAT/LAZYCREW"; } }
|
|
public override string Description { get { return "Lazycrew resource archive"; } }
|
|
public override uint Signature { get { return 0; } }
|
|
public override bool IsHierarchic { get { return true; } }
|
|
public override bool CanWrite { get { return false; } }
|
|
|
|
public DatOpener ()
|
|
{
|
|
Extensions = new string[] { "dat", "" };
|
|
Signatures = new uint[] { 2, 0 };
|
|
}
|
|
|
|
static readonly Regex NamePattern = new Regex (@"^(?:(?<num>0\d\d\d)\.dat|data(?<num>\d+)?)$", RegexOptions.IgnoreCase);
|
|
|
|
const uint DefaultPcmKey = 0x4B5AB4A5;
|
|
|
|
public override ArcFile TryOpen (ArcView file)
|
|
{
|
|
var name = Path.GetFileName (file.Name);
|
|
if (!NamePattern.IsMatch (name))
|
|
return null;
|
|
var match = NamePattern.Match (name);
|
|
int name_id = 1;
|
|
var num_str = match.Groups["num"].Value;
|
|
if (!string.IsNullOrEmpty (num_str))
|
|
name_id = Int32.Parse (num_str);
|
|
if (name_id < 1)
|
|
return null;
|
|
ArcView index = file;
|
|
try
|
|
{
|
|
if (name_id != 1)
|
|
{
|
|
string index_name;
|
|
if (file.Name.HasExtension (".dat"))
|
|
index_name = VFS.ChangeFileName (file.Name, "0001.dat");
|
|
else
|
|
index_name = VFS.ChangeFileName (file.Name, "data");
|
|
if (!VFS.FileExists (index_name))
|
|
return null;
|
|
index = VFS.OpenView (index_name);
|
|
}
|
|
var dir = ReadIndex (index, name_id, file.MaxOffset);
|
|
if (null == dir || 0 == dir.Count)
|
|
return null;
|
|
return new ArcFile (file, this, dir);
|
|
}
|
|
finally
|
|
{
|
|
if (index != file)
|
|
index.Dispose();
|
|
}
|
|
}
|
|
|
|
List<Entry> ReadIndex (ArcView index, int arc_id, long arc_length)
|
|
{
|
|
int dir_count = index.View.ReadInt32 (0);
|
|
if (dir_count <= 0 || dir_count > 20)
|
|
return null;
|
|
var dir_list = new List<DirEntry> (dir_count);
|
|
int dir_offset = 4;
|
|
int first_offset = dir_count * 0x10 + 4;
|
|
for (int i = 0; i < dir_count; ++i)
|
|
{
|
|
var dir_entry = new DirEntry {
|
|
Name = index.View.ReadString (dir_offset, 8),
|
|
Offset = index.View.ReadInt32 (dir_offset+8),
|
|
Count = index.View.ReadInt32 (dir_offset+12),
|
|
};
|
|
if (dir_entry.Offset < first_offset || dir_entry.Offset >= index.MaxOffset
|
|
|| !IsSaneCount (dir_entry.Count))
|
|
return null;
|
|
dir_list.Add (dir_entry);
|
|
dir_offset += 16;
|
|
}
|
|
var file_list = new List<Entry>();
|
|
foreach (var dir in dir_list)
|
|
{
|
|
dir_offset = dir.Offset;
|
|
string type = "";
|
|
if (dir.Name.Equals ("image", StringComparison.OrdinalIgnoreCase))
|
|
type = "image";
|
|
else if (dir.Name.Equals ("sound", StringComparison.OrdinalIgnoreCase))
|
|
type = "audio";
|
|
for (int i = 0; i < dir.Count; ++i)
|
|
{
|
|
int id = index.View.ReadUInt16 (dir_offset);
|
|
if (id == arc_id)
|
|
{
|
|
var entry = new Entry {
|
|
Name = Path.Combine (dir.Name, i.ToString ("D5")),
|
|
Type = type,
|
|
Offset = index.View.ReadUInt32 (dir_offset+2),
|
|
Size = index.View.ReadUInt32 (dir_offset+6),
|
|
};
|
|
if (!entry.CheckPlacement (arc_length))
|
|
return null;
|
|
file_list.Add (entry);
|
|
}
|
|
dir_offset += 10;
|
|
}
|
|
}
|
|
return file_list;
|
|
}
|
|
|
|
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
|
{
|
|
if (entry.Type == "audio")
|
|
{
|
|
uint signature = arc.File.View.ReadUInt32 (entry.Offset);
|
|
if (signature == 0x10000 || signature == 0)
|
|
return OpenAudio (arc, entry);
|
|
else if (signature == 1 || signature == 0x10001)
|
|
return arc.File.CreateStream (entry.Offset+4, entry.Size-4);
|
|
}
|
|
return base.OpenEntry (arc, entry);
|
|
}
|
|
|
|
Stream OpenAudio (ArcFile arc, Entry entry)
|
|
{
|
|
var riff_header = new byte[0x2C];
|
|
LittleEndian.Pack (AudioFormat.Wav.Signature, riff_header, 0);
|
|
LittleEndian.Pack (0x45564157, riff_header, 8); // 'WAVE'
|
|
LittleEndian.Pack (0x20746d66, riff_header, 12); // 'fmt '
|
|
LittleEndian.Pack (0x10, riff_header, 16);
|
|
arc.File.View.Read (entry.Offset+4, riff_header, 20, 0x10);
|
|
LittleEndian.Pack (0x61746164, riff_header, 0x24); // 'data'
|
|
uint data_size = arc.File.View.ReadUInt32 (entry.Offset+0x16);
|
|
LittleEndian.Pack (data_size + 0x24u, riff_header, 4);
|
|
LittleEndian.Pack (data_size, riff_header, 0x28);
|
|
var pcm = arc.File.View.ReadBytes (entry.Offset+0x1A, data_size);
|
|
DecryptData (pcm, DefaultPcmKey);
|
|
var riff_data = new MemoryStream (pcm);
|
|
return new PrefixStream (riff_header, riff_data);
|
|
}
|
|
|
|
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
|
|
{
|
|
var input = arc.OpenBinaryEntry (entry);
|
|
int fmt = (int)input.Signature & 0xFFFF;
|
|
if (fmt > 4)
|
|
return ImageFormatDecoder.Create (input);
|
|
var header = input.ReadHeader (14);
|
|
input.Position = 0;
|
|
int hpos = 2;
|
|
if (1 == fmt || 3 == fmt)
|
|
hpos = 8;
|
|
int cmp = header.ToUInt16 (hpos);
|
|
int bpp = 0;
|
|
switch (cmp & 0xFF)
|
|
{
|
|
case 2: bpp = 4; break;
|
|
case 3: bpp = 8; break;
|
|
case 5: bpp = 24; break;
|
|
default:
|
|
return ImageFormatDecoder.Create (input);
|
|
}
|
|
var info = new LcImageMetaData {
|
|
Width = header.ToUInt16 (hpos+2),
|
|
Height = header.ToUInt16 (hpos+4),
|
|
BPP = bpp,
|
|
Format = fmt,
|
|
Compression = cmp,
|
|
DataOffset = hpos + 6,
|
|
};
|
|
return new LcImageDecoder (input, info);
|
|
}
|
|
|
|
void DecryptData (byte[] data, uint key)
|
|
{
|
|
for (int i = 0; i < data.Length; ++i)
|
|
{
|
|
data[i] ^= (byte)key;
|
|
key = data[i] ^ ((key << 9) | (key >> 23) & 0x1F0);
|
|
}
|
|
}
|
|
}
|
|
}
|