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//! \file ArcBIN.cs
//! \date 2018 Jan 19
//! \brief Uncategorized 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.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using GameRes.Compression;
namespace GameRes.Formats.Misc
{
[Export(typeof(ArchiveFormat))]
public class BinOpener : ArchiveFormat
{
public override string Tag { get { return "BIN/?"; } }
public override string Description { get { return "Uncategorized resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0);
if (!IsSaneCount (count))
return null;
uint first_offset = file.View.ReadUInt32 (4);
if (4 + count * 8 != first_offset)
return null;
var base_name = Path.GetFileNameWithoutExtension (file.Name);
bool is_msg = base_name == "msg";
uint index_offset = 4;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
uint offset = file.View.ReadUInt32 (index_offset);
uint size = file.View.ReadUInt32 (index_offset+4);
var entry = new PackedEntry {
Name = string.Format ("{0}#{1:D5}", base_name, i),
Offset = offset,
Size = size,
};
if (!is_msg && !entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
index_offset += 8;
}
foreach (PackedEntry entry in dir)
{
if (is_msg)
{
uint size = file.View.ReadUInt32 (entry.Offset);
entry.Offset += 4;
entry.UnpackedSize = entry.Size;
entry.Size = size;
entry.IsPacked = true;
if (!entry.CheckPlacement (file.MaxOffset))
return null;
continue;
}
uint pos = file.View.ReadUInt32 (entry.Offset+4);
if (pos > entry.Size)
continue;
uint unpacked_size = file.View.ReadUInt32 (entry.Offset+8);
uint flags = unpacked_size >> 30;
unpacked_size &= 0x3FFFFFFF;
entry.IsPacked = 0 == flags;
uint signature = 0;
if (entry.IsPacked)
{
entry.UnpackedSize = unpacked_size;
entry.Size = file.View.ReadUInt32 (entry.Offset+pos);
entry.Offset += pos + 4;
if ((file.View.ReadByte (entry.Offset) & 0xF) == 0xF)
signature = file.View.ReadUInt32 (entry.Offset+1);
}
else
{
entry.Size = unpacked_size;
entry.Offset += pos;
signature = file.View.ReadUInt32 (entry.Offset);
}
var res = AutoEntry.DetectFileType (signature);
if (res != null)
entry.ChangeType (res);
}
return new ArcFile (file, this, dir);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var input = arc.File.CreateStream (entry.Offset, entry.Size);
var pent = entry as PackedEntry;
if (null == pent || !pent.IsPacked)
return input;
return new LzssStream (input);
}
}
}