GARbro-mirror/ArcFormats/Silky/ArcAWF.cs

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//! \file ArcAWF.cs
//! \date Thu Nov 05 01:47:53 2015
//! \brief Silky's audio archive.
//
// 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.Silky
{
[Export(typeof(ArchiveFormat))]
public class AwfOpener : ArchiveFormat
{
public override string Tag { get { return "AWF"; } }
public override string Description { get { return "Silky's audio 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)
{
// enforce extension to avoid false positives
if (!file.Name.EndsWith (".awf", StringComparison.InvariantCultureIgnoreCase))
return null;
int count = file.View.ReadInt32 (0);
if (!IsSaneCount (count))
return null;
uint index_offset = 4;
uint index_size = (uint)count*0x34;
if (index_size > file.View.Reserve (index_offset, index_size))
return null;
// rather loose criterion, haven't found anything better yet.
bool is_mp3 = Path.GetFileName (file.Name).Equals ("voice.awf", StringComparison.InvariantCultureIgnoreCase);
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = file.View.ReadString (index_offset, 0x20);
// haven't figured out this field yet.
// int compression = file.View.ReadInt32 (index_offset+0x28);
// if (-1 == compression)
// name = Path.ChangeExtension (name, "mp3");
if (is_mp3)
name = Path.ChangeExtension (name, "mp3");
var entry = FormatCatalog.Instance.Create<Entry> (name);
entry.Offset = file.View.ReadUInt32 (index_offset+0x20);
entry.Size = file.View.ReadUInt32 (index_offset+0x24);
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
index_offset += 0x34;
}
return new ArcFile (file, this, dir);
}
}
}