GARbro-mirror/ArcFormats/Hexenhaus/ArcWAG.cs

189 lines
7.4 KiB
C#

//! \file ArcWAG.cs
//! \date Sun Mar 13 23:35:58 2016
//! \brief Hexenhaus resource archive.
//
// Copyright (C) 2016 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.Diagnostics;
using System.IO;
using GameRes.Utility;
namespace GameRes.Formats.Hexenhaus
{
[Export(typeof(ArchiveFormat))]
public class WagOpener : ArchiveFormat
{
public override string Tag { get { return "WAG/IAF"; } }
public override string Description { get { return "Hexenhaus resource archive"; } }
public override uint Signature { get { return 0x5F464149; } } // 'IAF_'
public override bool IsHierarchic { get { return true; } }
public override bool CanCreate { get { return false; } }
public WagOpener ()
{
Extensions = new string[] { "wag" };
}
public override ArcFile TryOpen (ArcView file)
{
int type = file.View.ReadUInt16 (4);
int count = file.View.ReadInt32 (6);
if (!IsSaneCount (count))
return null;
using (var enc = file.CreateStream())
using (var dec = new EncryptedStream (enc))
using (var index = new BinaryReader (dec))
{
dec.Position = 0x4A;
var offsets = new uint[count];
for (int i = 0; i < count; ++i)
{
offsets[i] = index.ReadUInt32();
}
var name_buffer = new byte[0x100];
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
index.BaseStream.Position = offsets[i];
uint signature = index.ReadUInt32();
if (signature != 0x41544144) // 'DATA'
continue;
int section_count = index.ReadInt32();
index.ReadInt16();
var entry = new Entry { Offset = offsets[i] };
for (int s = 0; s < section_count; ++s)
{
signature = index.ReadUInt32();
if (0x44474D49 == signature) // 'IMGD'
{
entry.Offset = index.BaseStream.Position - 4;
uint imgd_size = index.ReadUInt32();
entry.Size = imgd_size + 0x10;
index.BaseStream.Seek (imgd_size + 2, SeekOrigin.Current);
}
else if (0x454E4E46 == signature) // 'FNNE'
{
int name_length = index.ReadInt32()-2;
index.ReadInt16();
if (name_length > name_buffer.Length)
name_buffer = new byte[name_length];
index.Read (name_buffer, 0, name_length);
entry.Name = Encodings.cp932.GetString (name_buffer, 0, name_length);
entry.Type = FormatCatalog.Instance.GetTypeFromName (entry.Name);
index.ReadInt16();
}
else
{
var section_size = index.ReadUInt32();
// section not supported, skip
index.BaseStream.Seek (section_size+2, SeekOrigin.Current);
if (0x415A4F4D != signature) // 'MOZA'
Trace.WriteLine (string.Format ("Unknown section 0x{0:X8}", signature), "[WAG/IAF]");
}
}
if (entry.Size > 0 && !string.IsNullOrEmpty (entry.Name))
dir.Add (entry);
}
if (0 == dir.Count)
return null;
return new ArcFile (file, this, dir);
}
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var input = arc.File.CreateStream (entry.Offset, entry.Size);
return new EncryptedStream (input);
}
}
internal class EncryptedStream : ProxyStream
{
public EncryptedStream (Stream input, bool leave_open = false)
: base (input, leave_open)
{
}
public override int Read (byte[] buffer, int offset, int count)
{
int read = BaseStream.Read (buffer, offset, count);
for (int i = 0; i < read; ++i)
buffer[offset+i] = Binary.RotByteR (buffer[offset+i], 4);
return read;
}
public override int ReadByte ()
{
int b = BaseStream.ReadByte();
if (b != -1)
b = Binary.RotByteR ((byte)b, 4);
return b;
}
}
[Export(typeof(ImageFormat))]
public class ImgdFormat : PngFormat
{
public override string Tag { get { return "IMGD/WAG"; } }
public override string Description { get { return "WAG archive PNG image"; } }
public override uint Signature { get { return 0x44474D49; } } // 'IMGD'
public ImgdFormat ()
{
Extensions = new string[] { "png" };
}
public override ImageMetaData ReadMetaData (Stream stream)
{
ImageMetaData info;
using (var png = new StreamRegion (stream, 0x10, true))
info = base.ReadMetaData (png);
if (null == info)
return null;
stream.Seek (-14, SeekOrigin.End);
var cntr = new byte[12];
stream.Read (cntr, 0, 12);
if (Binary.AsciiEqual (cntr, "CNTR"))
{
info.OffsetX = LittleEndian.ToInt32 (cntr, 4);
info.OffsetY = LittleEndian.ToInt32 (cntr, 8);
}
return info;
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
using (var png = new StreamRegion (stream, 0x10, true))
return base.Read (png, info);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("ImgdFormat.Write not implemented");
}
}
}