GARbro-mirror/ArcFormats/TopCat/ArcTCD1.cs

92 lines
3.5 KiB
C#
Raw Normal View History

//! \file ArcTCD1.cs
//! \date 2018 Jan 23
//! \brief TopCat TCD1 data 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;
namespace GameRes.Formats.TopCat
{
[Export(typeof(ArchiveFormat))]
public class Tcd1Opener : TcdOpener
{
public override string Tag { get { return "TCD1"; } }
public override string Description { get { return "TopCat data archive"; } }
public override uint Signature { get { return 0x31444354; } } // 'TCD1'
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public Tcd1Opener ()
{
Extensions = new string[] { "tcd" };
Signatures = new uint[] { 0x31444354 };
}
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (4);
if (!IsSaneCount (count))
return null;
uint index_offset = file.View.ReadUInt32 (8);
uint names_offset = file.View.ReadUInt32 (12);
uint pos = index_offset;
var offsets = new uint[count+1];
for (int i = 0; i < count; ++i)
{
offsets[i] = file.View.ReadUInt32 (pos) - (index_offset << ((i & 7) + 8));
pos += 4;
}
offsets[count] = file.View.ReadUInt32 (pos);
var names = file.View.ReadBytes (names_offset, (uint)(file.MaxOffset - names_offset));
var dir = new List<Entry> (count);
int name_start = 0;
int entry_num = 0;
for (int i = 0; i < names.Length; ++i)
{
if (names[i] != 0)
{
names[i] -= 0x57;
}
else
{
var name = Encodings.cp932.GetString (names, name_start, i - name_start);
name_start = i+1;
var entry = FormatCatalog.Instance.Create<Entry> (name);
entry.Offset = offsets[entry_num];
entry.Size = offsets[entry_num+1] - offsets[entry_num];
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
++entry_num;
}
}
return new ArcFile (file, this, dir);
}
}
}