GARbro-mirror/ArcFormats/Triangle/ArcBMX.cs
2019-01-27 02:29:19 +04:00

115 lines
4.6 KiB
C#

//! \file ArcBMX.cs
//! \date 2018 Jul 22
//! \brief Triangle 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;
namespace GameRes.Formats.Triangle
{
[Export(typeof(ArchiveFormat))]
public class BmxOpener : ArchiveFormat
{
public override string Tag { get { return "BMX/TRIANGLE"; } }
public override string Description { get { return "Triangle resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public BmxOpener ()
{
Extensions = new string[] { "bmx", "wax", "fx", "gx" };
}
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0);
if (!IsSaneCount (count))
return null;
uint index_size = (uint)count * 4 + 8;
if (index_size > file.View.Reserve (0, index_size))
return null;
uint index_offset = 4;
uint offset = file.View.ReadUInt32 (index_offset);
if (offset != index_size)
return null;
uint last_offset = file.View.ReadUInt32 (index_size - 4);
if (last_offset != file.MaxOffset)
return null;
string default_type = "";
if (file.Name.HasExtension ("fx"))
default_type = "audio";
else if (file.Name.HasExtension ("gx"))
default_type = "image";
var base_name = Path.GetFileNameWithoutExtension (file.Name);
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
index_offset += 4;
var entry = new PackedEntry {
Name = string.Format ("{0}#{1:D4}", base_name, i),
Type = default_type,
Offset = offset,
};
offset = file.View.ReadUInt32 (index_offset);
entry.Size = (uint)(offset - entry.Offset);
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
}
if (string.IsNullOrEmpty (default_type))
{
foreach (var entry in dir)
{
uint signature = file.View.ReadUInt32 (entry.Offset);
entry.ChangeType (AutoEntry.DetectFileType (signature));
}
}
return new ArcFile (file, this, dir);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var pent = entry as PackedEntry;
if (null == pent)
return base.OpenEntry (arc, entry);
if (!pent.IsPacked)
{
if (!arc.File.View.AsciiEqual (entry.Offset, "fACE"))
return base.OpenEntry (arc, entry);
pent.IsPacked = true;
pent.UnpackedSize = arc.File.View.ReadUInt32 (entry.Offset+4) ^ 0x65641538;
}
using (var input = arc.File.CreateStream (entry.Offset+8, entry.Size-8))
{
var data = new byte[pent.UnpackedSize];
TriFormat.Unpack (input, data);
return new BinMemoryStream (data, entry.Name);
}
}
}
}