GARbro-mirror/Legacy/Koei/ArcYK.cs

207 lines
7.4 KiB
C#
Raw Normal View History

//! \file ArcYK.cs
//! \date 2023 Sep 10
//! \brief Koei data archive.
//
// Copyright (C) 2023 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 GameRes.Utility;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
// [990312][Koei] Yakusoku no Kizuna
namespace GameRes.Formats.Koei
{
internal class YkArchive : ArcFile
{
public readonly string YkName;
public YkArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, string name)
: base (arc, impl, dir)
{
YkName = name;
}
}
internal class YkEntry : Entry
{
public int Id;
}
[Export(typeof(ArchiveFormat))]
public partial class YkOpener : ArchiveFormat
{
public override string Tag => "YK";
public override string Description => "Koei resource archive";
public override uint Signature => 0;
public override bool IsHierarchic => false;
public override bool CanWrite => false;
public override ArcFile TryOpen (ArcView file)
{
if (!file.Name.HasExtension (".YK"))
return null;
var name = Path.GetFileNameWithoutExtension (file.Name).ToUpperInvariant();
List<Entry> dir = null;
if ("DATA01" == name)
dir = GetData01Index (file);
else if (OffsetTable.ContainsKey (name))
dir = GetDataIndex (file, OffsetTable[name], name);
if (null == dir)
return null;
return new YkArchive (file, this, dir, name);
}
List<Entry> GetData01Index (ArcView file)
{
int count = (int)(file.MaxOffset / 0x4B400);
if (!IsSaneCount (count) || count * 0x4B400 != file.MaxOffset)
return null;
uint offset = 0;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var entry = new Entry {
Name = string.Format ("{0:D5}.BMP", i),
Type = "image",
Offset = offset,
Size = 0x4B400
};
dir.Add (entry);
offset += 0x4B400;
}
return dir;
}
List<Entry> GetDataIndex (ArcView file, uint[] offsets, string name)
{
var dir = new List<Entry> (offsets.Length);
uint current_offset = 0;
for (int i = 0; i < offsets.Length; ++i)
{
var entry = new YkEntry {
Name = string.Format ("{0}#{1:D4}", name, i),
Offset = current_offset,
Size = offsets[i] - current_offset,
Id = i
};
if (!entry.CheckPlacement (file.MaxOffset))
return null;
if ("DATA02" == name && (i >= 11 || Data02Images.ContainsKey (i)))
{
entry.Name += ".BMP";
entry.Type = "image";
}
else if (IsAudio.Contains (name))
{
entry.Name += ".WAV";
entry.Type = "audio";
}
dir.Add (entry);
current_offset = offsets[i];
}
return dir;
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var yarc = (YkArchive)arc;
if ("DATA03" == yarc.YkName)
{
var data = arc.File.View.ReadBytes (entry.Offset, entry.Size);
DecryptData03 (data);
return new BinMemoryStream (data, entry.Name);
}
else if (IsAudio.Contains (yarc.YkName))
return OpenAudio (arc, entry);
else
return base.OpenEntry (arc, entry);
}
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
{
var yarc = (YkArchive)arc;
if (yarc.YkName == "DATA02")
return OpenData02Image (arc, (YkEntry)entry);
else if (yarc.YkName != "DATA01")
return base.OpenImage (arc, entry);
var input = arc.File.CreateStream (entry.Offset, entry.Size);
return new YkImageDecoder (input, new ImageMetaData { Width = 640, Height = 480, BPP = 8 });
}
IImageDecoder OpenData02Image (ArcFile arc, YkEntry entry)
{
ImageMetaData info;
if (entry.Id >= 189)
info = new ImageMetaData { Width = 128, Height = 192, BPP = 8 };
else if (!Data02Images.TryGetValue (entry.Id, out info) || null == info)
return base.OpenImage (arc, entry);
var input = arc.File.CreateStream (entry.Offset, entry.Size);
return new YkImageDecoder (input, info);
}
static readonly byte[] RiffHeader = new byte[] {
(byte)'R', (byte)'I', (byte)'F', (byte)'F', 0, 0, 0, 0,
(byte)'W', (byte)'A', (byte)'V', (byte)'E', (byte)'f', (byte)'m', (byte)'t', (byte)' ',
};
Stream OpenAudio (ArcFile arc, Entry entry)
{
var header = RiffHeader.Clone() as byte[];
LittleEndian.Pack (entry.Size+8u, header, 4);
var wave = arc.File.CreateStream (entry.Offset, entry.Size);
return new PrefixStream (header, wave);
}
unsafe void DecryptData03 (byte[] data)
{
int count = data.Length >> 2;
fixed (byte* data8 = &data[0])
{
uint* data32 = (uint*)data8;
while (count --> 0)
{
*data32++ ^= 0x12C4D65u;
}
}
}
}
internal class YkImageDecoder : BinaryImageDecoder
{
public YkImageDecoder (IBinaryStream input, ImageMetaData info) : base (input, info)
{
}
protected override ImageData GetImageData ()
{
m_input.Position = 0;
var palette = ImageFormat.ReadPalette (m_input.AsStream);
int size = Info.iWidth * Info.iHeight;
var pixels = m_input.ReadBytes (size);
return ImageData.CreateFlipped (Info, PixelFormats.Indexed8, palette, pixels, Info.iWidth);
}
}
}