GARbro-mirror/ArcFormats/Carriere/ArcARC.cs

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//! \file ArcARC.cs
//! \date 2018 May 01
//! \brief Carriere 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;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using GameRes.Compression;
namespace GameRes.Formats.Carriere
{
[Export(typeof(ArchiveFormat))]
public class ArcOpener : ArchiveFormat
{
public override string Tag { get { return "ARC/CARRIERE"; } }
public override string Description { get { return "Carriere resource archive"; } }
public override uint Signature { get { return 0x8F949B87; } }
public override bool IsHierarchic { get { return true; } }
public override bool CanWrite { get { return false; } }
public override ArcFile TryOpen (ArcView file)
{
if (file.View.ReadUInt32 (4) != 0x869E919A)
return null;
int count = file.View.ReadInt32 (8);
if (!IsSaneCount (count))
return null;
uint index_offset = 0xC;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = file.View.ReadString (index_offset, 0x104);
var entry = FormatCatalog.Instance.Create<PackedEntry> (name);
entry.Offset = file.View.ReadUInt32 (index_offset+0x104);
entry.UnpackedSize = file.View.ReadUInt32 (index_offset+0x108);
entry.Size = file.View.ReadUInt32 (index_offset+0x10C);
if (!entry.CheckPlacement (file.MaxOffset))
return null;
entry.IsPacked = entry.UnpackedSize != entry.Size;
dir.Add (entry);
index_offset += 0x110;
}
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);
}
}
[Export(typeof(ArchiveFormat))]
public class ScenarioArcOpener : ArchiveFormat
{
public override string Tag { get { return "ARC/~ARCHIVE"; } }
public override string Description { get { return "Carriere scripts archive"; } }
public override uint Signature { get { return 0xB7BCADBE; } } // ~'ARCHIVE'
public override bool IsHierarchic { get { return true; } }
public override bool CanWrite { get { return false; } }
public override ArcFile TryOpen (ArcView file)
{
if (file.View.ReadUInt32 (4) != 0xFFBAA9B6)
return null;
uint index_length = file.View.ReadUInt32 (8);
using (var index_s = OpenDataStream (file, 8))
using (var index = BinaryStream.FromStream (index_s, file.Name))
{
int count = index.ReadInt32();
if (!IsSaneCount (count))
return null;
uint data_offset = 8 + index_length;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = index.ReadCString (0x104);
var entry = FormatCatalog.Instance.Create<PackedEntry> (name);
entry.Offset = index.ReadUInt32() + data_offset;
entry.Size = index.ReadUInt32();
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
}
return new ArcFile (file, this, dir);
}
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var input = OpenDataStream (arc.File, entry.Offset);
var pent = entry as PackedEntry;
if (pent != null && !pent.IsPacked)
{
pent.IsPacked = true;
pent.UnpackedSize = arc.File.View.ReadUInt32 (entry.Offset+8);
}
return input;
}
internal Stream OpenDataStream (ArcView file, long offset)
{
uint packed_size = file.View.ReadUInt32 (offset);
int flags = file.View.ReadInt32 (offset+4);
int unpacked_size = file.View.ReadInt32 (offset+8);
Stream input = file.CreateStream (offset+12, packed_size-12);
if ((flags & 1) != 0)
{
input = new XoredStream (input, 0xFF);
}
var output = new byte[unpacked_size];
if ((flags & 2) != 0)
{
input = new LzssStream (input);
}
return input;
}
}
}