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mirror of https://github.com/crskycode/GARbro.git synced 2024-12-24 11:54:13 +08:00
2017-01-11 06:49:23 +04:00

91 lines
3.6 KiB
C#

//! \file ArcAAR.cs
//! \date Tue Jan 10 19:40:28 2017
//! \brief AliceSoft resource archive.
//
// Copyright (C) 2017 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.AliceSoft
{
[Export(typeof(ArchiveFormat))]
public class AarOpener : ArchiveFormat
{
public override string Tag { get { return "AAR"; } }
public override string Description { get { return "AliceSoft System engine resource archive"; } }
public override uint Signature { get { return 0x00524141; } } // 'AAR'
public override bool IsHierarchic { get { return true; } }
public override bool CanWrite { get { return false; } }
public AarOpener ()
{
Extensions = new string[] { "red" };
}
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (8);
if (!IsSaneCount (count))
return null;
using (var index = file.CreateStream())
{
index.Position = 0xC;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
uint offset = index.ReadUInt32();
uint size = index.ReadUInt32();
bool is_packed = index.ReadInt32() != 1;
string name = index.ReadCString();
var entry = FormatCatalog.Instance.Create<PackedEntry> (name);
entry.Offset = offset;
entry.Size = size;
entry.IsPacked = is_packed;
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
}
return new ArcFile (file, this, dir);
}
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
if (!arc.File.View.AsciiEqual (entry.Offset, "ZLB\0"))
return base.OpenEntry (arc, entry);
var pent = entry as PackedEntry;
if (null != pent && 0 == pent.UnpackedSize)
{
pent.IsPacked = true;
pent.UnpackedSize = arc.File.View.ReadUInt32 (8);
}
uint packed_size = arc.File.View.ReadUInt32 (0xC);
var input = arc.File.CreateStream (entry.Offset+0x10, packed_size);
return new ZLibStream (input, CompressionMode.Decompress);
}
}
}