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Code Issues Packages Projects Releases Wiki Activity

(Legacy): bunch of formats.

Browse Source 
(GSX): K5 archives + K4 images.
(HyperWorks): G images.
(IDA): better support packed entries.
(Logg): ARF, MBM archives, FRM images.
(Omi): DAT archives.
(Rare): X archives.
(RHSS): 'CRG' archives.
(SplushWave): better SWG images support.
This commit is contained in:
morkt
2023-09-07 12:47:22 +04:00
parent 8b23273fa9
commit 419a5f4e31
15 changed files with 1564 additions and 107 deletions
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213
Legacy/Omi/ArcDAT.cs Normal file
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//! \file ArcDAT.cs
//! \date 2023 Sep 04
//! \brief OMI Script Engine resource archive.
//
// Copyright (C) 2023 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 GameRes.Utility;
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Text;
namespace GameRes.Formats.Omi
{
[Export(typeof(ArchiveFormat))]
public class DatOpener : ArchiveFormat
{
public override string Tag => "DAT/OMI";
public override string Description => "OMI Script Engine resource archive";
public override uint Signature => 0;
public override bool IsHierarchic => false;
public override bool CanWrite => false;
internal const uint DefaultKey = 7654321u;
public DatOpener ()
{
ContainedFormats = new[] { "BMP", "TGA", "WAV", "TXT" };
}
public override ArcFile TryOpen (ArcView file)
{
if (!VFS.IsPathEqualsToFileName (file.Name, "scrdat"))
return null;
using (var input = file.CreateStream())
using (var index = new DecryptedStream (input, DefaultKey, 0))
{
var line = index.ReadLine();
int count = int.Parse (line);
if (!IsSaneCount (count))
return null;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = index.ReadLine();
line = index.ReadLine();
uint size = uint.Parse (line);
var entry = Create<PackedEntry> (name);
entry.Size = size;
entry.IsPacked = entry.Type == "image";
dir.Add (entry);
}
long data_pos = index.Position;
for (int i = 0; i < count; ++i)
{
dir[i].Offset = data_pos;
if (!dir[i].CheckPlacement (file.MaxOffset))
return null;
data_pos += dir[i].Size;
}
return new ArcFile (file, this, dir);
}
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var pent = (PackedEntry)entry;
Stream input = arc.File.CreateStream (entry.Offset, entry.Size);
input = new DecryptedStream (input, DefaultKey, (uint)entry.Offset);
if (!pent.IsPacked)
return input;
using (var packed = new BinaryStream (input, pent.Name))
{
var unpacked = DecompressRle (packed);
if (pent.UnpackedSize == 0)
pent.UnpackedSize = (uint)unpacked.Length;
return new BinMemoryStream (unpacked, pent.Name);
}
}
internal static byte[] DecompressRle (IBinaryStream input)
{
int size = input.ReadInt32();
var output = new byte[size * 2];
ushort rle_marker = input.ReadUInt16();
int dst = 0;
while (dst < output.Length)
{
input.Read (output, dst, 2);
if (output.ToUInt16 (dst) == rle_marker)
{
input.Read (output, dst, 2);
dst += 2;
int count = input.ReadUInt16() - 1;
if (count > 0)
{
count *= 2;
Binary.CopyOverlapped (output, dst-2, dst, count);
dst += count;
}
}
else
{
dst += 2;
}
}
return output;
}
}
internal class DecryptedStream : InputProxyStream
{
private uint m_key;
static readonly Encoding Encoding = Encodings.cp932;
public override bool CanSeek { get => false; }
public override long Position
{
get => BaseStream.Position;
set => throw new NotSupportedException ("Stream.Position property is not supported");
}
public DecryptedStream (Stream stream, uint key, uint start_offset) : base (stream)
{
if (start_offset > 0)
{
do
{
key = 5 * key - 3;
}
while (--start_offset > 0);
}
m_key = key;
}
public override int Read (byte[] buffer, int offset, int count)
{
int read = BaseStream.Read (buffer, offset, count);
Decrypt (buffer, offset, read);
return read;
}
byte[] m_byte_buffer = new byte[1];
public override int ReadByte ()
{
int b = BaseStream.ReadByte();
if (-1 != b)
{
m_byte_buffer[0] = (byte)b;
Decrypt (m_byte_buffer, 0, 1);
b = m_byte_buffer[0];
}
return b;
}
internal void Decrypt (byte[] data, int offset, int count)
{
for (int i = 0; i < count; ++i)
{
data[offset+i] = (byte)(Binary.RotByteR (data[offset+i], 1) - m_key);
m_key = 5 * m_key - 3;
}
}
byte[] m_buffer;
public string ReadLine ()
{
if (null == m_buffer)
m_buffer = new byte[32];
int size = 0;
for (;;)
{
int b = ReadByte();
if (-1 == b || '\n' == b)
break;
if (m_buffer.Length == size)
{
Array.Resize (ref m_buffer, checked(size/2*3));
}
m_buffer[size++] = (byte)b;
}
return Encoding.GetString (m_buffer, 0, size);
}
public override long Seek (long offset, SeekOrigin origin)
{
throw new NotSupportedException();
}
}
}