GARbro-mirror/Legacy/Nug/ArcDAT.cs
morkt 3a11f5fc7a Legacy updated.
GRP/RG image format.
improved 'BData' images handling.
YK archives.
'1AWF' archives.
2023-09-14 18:33:35 +04:00

98 lines
3.9 KiB
C#

//! \file ArcDAT.cs
//! \date 2023 Sep 10
//! \brief NUG System 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.Compression;
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
namespace GameRes.Formats.Nug
{
[Export(typeof(ArchiveFormat))]
public class FwaOpener : ArchiveFormat
{
public override string Tag => "DAT/FWA";
public override string Description => "Frontwing resource archive";
public override uint Signature => 0x46574131; // '1AWF'
public override bool IsHierarchic => false;
public override bool CanWrite => false;
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0xC);
if (!IsSaneCount (count))
return null;
long index_offset = file.View.ReadUInt32 (0x10) + count * 4;
uint index_size = (uint)count * 0x40u;
if (index_size > file.View.Reserve (index_offset, index_size))
return null;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
uint entry_size = file.View.ReadUInt32 (index_offset);
if (entry_size < 0x40)
return null;
var name = file.View.ReadString (index_offset+0x10, 0x30);
var entry = Create<PackedEntry> (name);
entry.Offset = file.View.ReadUInt32 (index_offset+4);
entry.Size = file.View.ReadUInt32 (index_offset+8);
if (!entry.CheckPlacement (file.MaxOffset))
return null;
entry.UnpackedSize = entry.Size;
dir.Add (entry);
index_offset += entry_size;
}
return new ArcFile (file, this, dir);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var pent = (PackedEntry)entry;
var offset = entry.Offset;
uint signature = arc.File.View.ReadUInt32 (offset);
if (!pent.IsPacked && entry.Size > 0x20)
{
if (signature == 0x46574353) // 'SCWF'
{
pent.IsPacked = true;
pent.UnpackedSize = arc.File.View.ReadUInt32 (offset+0x10);
entry.Offset += 0x20;
entry.Size -= 0x20;
}
else if (signature == 0x46574343) // 'CCWF'
{
entry.Offset += 0x20;
entry.Size = arc.File.View.ReadUInt32 (offset+0x10);
}
}
Stream input = arc.File.CreateStream (entry.Offset, entry.Size);
if (pent.IsPacked)
input = new LzssStream (input);
return input;
}
}
}