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implemented 'dif' incremental images.

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morkt 2016-03-06 15:31:01 +04:00
parent 1bed5aeb83
commit 61def57667
2 changed files with 159 additions and 1 deletions
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156
ArcFormats/MnoViolet/ImageDIF.cs Normal file
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@ -0,0 +1,156 @@
//! \file ImageDIF.cs
//! \date Sun Mar 06 14:36:12 2016
//! \brief M no Violet engine diff images.
//
// Copyright (C) 2016 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.ComponentModel.Composition;
using System.IO;
using System.Linq;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using GameRes.Compression;
using GameRes.Utility;
namespace GameRes.Formats.MnoViolet
{
internal class DifMetaData : ImageMetaData
{
public Entry BaseEntry;
public ImageFormat BaseFormat;
public ImageMetaData BaseInfo;
public int PackedIndexSize;
public int IndexSize;
public int PackedDiffSize;
public int DiffDataSize;
public int DiffCount;
}
/// <summary>
/// 'dif' files contain reference to an image they're based on and compressed difference data.
/// filename is specified without extension and base file usually resides within some other archive.
/// this implementation looks for the first file matching 'FILENAME.*' pattern within the same directory
/// as 'dif' itself and takes it as a base image.
/// so, both images and diff files should be placed into the same directory beforehand.
/// </summary>
[Export(typeof(ImageFormat))]
public class DifFormat : ImageFormat
{
public override string Tag { get { return "DIF/MnV"; } }
public override string Description { get { return "M no Violet incremental image format"; } }
public override uint Signature { get { return 0x00666964; } } // 'dif'
public DifFormat ()
{
Extensions = new string[] { "dif" };
}
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x7C];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
var base_name = Binary.GetCString (header, 4, 100);
if (string.IsNullOrEmpty (base_name))
return null;
var files = VFS.GetFiles (base_name+".*");
if (!files.Any())
return null;
var base_entry = files.First();
using (var input = VFS.OpenSeekableStream (base_entry))
{
// ReadMetaData isn't supplied with a filename being processed, so infinite recursion can't be
// prevented here unless we save state in a static member.
var format = ImageFormat.FindFormat (input, base_entry.Name);
if (null == format)
return null;
format.Item2.FileName = base_entry.Name;
return new DifMetaData
{
Width = format.Item2.Width,
Height = format.Item2.Height,
BPP = 24,
BaseEntry = base_entry,
BaseFormat = format.Item1,
BaseInfo = format.Item2,
PackedIndexSize = LittleEndian.ToInt32 (header, 0x68),
IndexSize = LittleEndian.ToInt32 (header, 0x6C),
PackedDiffSize = LittleEndian.ToInt32 (header, 0x70),
DiffDataSize = LittleEndian.ToInt32 (header, 0x74),
DiffCount = LittleEndian.ToInt32 (header, 0x78),
};
}
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
var meta = (DifMetaData)info;
BitmapSource base_bitmap;
using (var input = VFS.OpenSeekableStream (meta.BaseEntry))
{
var image = meta.BaseFormat.Read (input, meta.BaseInfo);
base_bitmap = image.Bitmap;
}
stream.Position = 0x7C;
var index = new byte[meta.IndexSize];
using (var input = new LzssStream (stream, LzssMode.Decompress, true))
if (index.Length != input.Read (index, 0, index.Length))
throw new EndOfStreamException();
if (base_bitmap.Format.BitsPerPixel != 24)
base_bitmap = new FormatConvertedBitmap (base_bitmap, PixelFormats.Bgr24, null, 0);
int src_stride = base_bitmap.PixelWidth * 3;
int dst_stride = (src_stride + 3) & ~3;
var pixels = new byte[dst_stride * base_bitmap.PixelHeight];
int row_offset = 0;
var rect = new Int32Rect (0, base_bitmap.PixelHeight, base_bitmap.PixelWidth, 1);
for (rect.Y = base_bitmap.PixelHeight-1; rect.Y >= 0; --rect.Y)
{
base_bitmap.CopyPixels (rect, pixels, src_stride, row_offset);
row_offset += dst_stride;
}
stream.Position = 0x7C + meta.PackedIndexSize;
using (var diff = new LzssStream (stream, LzssMode.Decompress, true))
{
int index_src = 0;
for (int i = 0; i < meta.DiffCount; ++i)
{
int offset = LittleEndian.ToInt32 (index, index_src);
int size = LittleEndian.ToInt32 (index, index_src+4);
index_src += 8;
diff.Read (pixels, offset, size);
}
return ImageData.CreateFlipped (info, PixelFormats.Bgr24, null, pixels, dst_stride);
}
}
public override void Write (Stream file, ImageData image)
{
throw new NotImplementedException ("DifFormat.Write not implemented");
}
}
}

4
supported.html
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@ -63,6 +63,7 @@ Grisaia no Kajitsu<br/>
Happiness! Re:Lucks<br/>
Kamikaze ☆ Explorer!<br/>
Makai Tenshi Djibril -Episode 4-<br/>
Sengoku Tenshi Djibril<br/>
Shukufuku no Campanella<br/>
TsunaBan ♥ Love Mix<br/>
Utatemeguri<br/>
@ -241,7 +242,7 @@ Shoujo Senki Soul Eater<br/>
<tr class="odd"><td>*.prs</td><td><tt>YB</tt></td><td>No</td></tr>
<tr class="odd"><td>*.way</td><td><tt>WADY</tt></td><td>No</td></tr>
<tr><td>*.dat</td><td>-</td><td>No</td><td rowspan="2">M no Violet</td><td rowspan="2">Nanase Ren</td></tr>
<tr><td>*</td><td><tt>gra</tt><br/><tt>mas</tt></td><td>No</td></tr>
<tr><td>*</td><td><tt>gra</tt><br/><tt>mas</tt><br/><tt>dif</tt></td><td>No</td></tr>
<tr class="odd"><td>*.ald</td><td>-</td><td>No</td><td rowspan="2">Alice Soft</td><td rowspan="2">Tsuma Shibori</td></tr>
<tr class="odd"><td>*.qnt</td><td><tt>QNT</tt></td><td>No</td></tr>
<tr><td>*.pd<br/>*.pb</td><td>-</td><td>No</td><td>Discovery</td><td>Tsuma Tsuma</td></tr>
@ -552,6 +553,7 @@ Gigai no Alruna<br/>
</td></tr>
<tr class="odd"><td>sys4ini.bin<br/>sys3ini.bin<br/>*.alf</td><td><tt>S4IC</tt><br/><tt>S3IC</tt></td><td>No</td><td rowspan="2">Eushully</td><td rowspan="2">
Kuutei Senki ~Tasogare ni Shizumu Kusabi~<br/>
Meishoku no Reiki<br/>
Soukai no Oujo-tachi<br/>
Soukai no Valkyria <br/>
</td></tr>