GARbro-mirror/ArcFormats/ArcGSP.cs
2015-03-05 17:38:40 +04:00

118 lines
4.8 KiB
C#

//! \file ArcGSP.cs
//! \date Wed Mar 04 11:30:32 2015
//! \brief GSP archive implementation.
//
// Copyright (C) 2015 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.Utility;
namespace GameRes.Formats.BlackRainbow
{
[Export(typeof(ArchiveFormat))]
public class GspOpener : ArchiveFormat
{
public override string Tag { get { return "GSP"; } }
public override string Description { get { return "GSP resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanCreate { get { return false; } }
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0);
if (count <= 0 || count > 0x1ffff)
return null;
uint index_size = 0x40u * (uint)count;
if (index_size > file.View.Reserve (4, index_size))
return null;
var dir = new List<Entry> (count);
long index_offset = 4;
long data_offset = index_offset + index_size;
for (int i = 0; i < count; ++i)
{
string name = file.View.ReadString (index_offset+8, 0x38);
var entry = FormatCatalog.Instance.CreateEntry (name);
entry.Offset = file.View.ReadUInt32 (index_offset);
entry.Size = file.View.ReadUInt32 (index_offset+4);
if (entry.Offset < data_offset || !entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
index_offset += 0x40;
}
return new ArcFile (file, this, dir);
}
}
[Export(typeof(ArchiveFormat))]
public class DatOpener : ArchiveFormat
{
public override string Tag { get { return "BR/DAT"; } }
public override string Description { get { return "BlackRainbow resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanCreate { get { return false; } }
public DatOpener ()
{
Extensions = new string[] { "dat", "pak" };
}
public override ArcFile TryOpen (ArcView file)
{
uint sig = file.View.ReadUInt32 (0);
if (sig != 2 && sig != 4 && sig != 5)
return null;
int count = file.View.ReadInt32 (8);
if (count <= 0 || count > 0x1ffff)
return null;
uint base_offset = file.View.ReadUInt32 (0x0c);
uint index_offset = 0x10;
uint index_size = 4u * (uint)count;
if (index_size > file.View.Reserve (index_offset, index_size))
return null;
var index = new List<uint> (count);
for (int i = 0; i < count; ++i)
{
uint offset = file.View.ReadUInt32 (index_offset);
if (offset != 0xffffffff)
index.Add (base_offset + offset);
index_offset += 4;
}
var dir = new List<Entry> (index.Count);
for (int i = 0; i < index.Count; ++i)
{
long offset = index[i];
string name = file.View.ReadString (offset, 0x20);
var entry = FormatCatalog.Instance.CreateEntry (name);
entry.Offset = offset + 0x24;
entry.Size = file.View.ReadUInt32 (offset+0x20);
dir.Add (entry);
}
return new ArcFile (file, this, dir);
}
}
}