diff --git a/ArcFormats/MnoViolet/ImageDIF.cs b/ArcFormats/MnoViolet/ImageDIF.cs
new file mode 100644
index 00000000..2f6f771a
--- /dev/null
+++ b/ArcFormats/MnoViolet/ImageDIF.cs
@@ -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;
+ }
+
+ ///
+ /// '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.
+ ///
+
+ [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");
+ }
+ }
+}
diff --git a/supported.html b/supported.html
index d5cfeca4..bb962cde 100644
--- a/supported.html
+++ b/supported.html
@@ -63,6 +63,7 @@ Grisaia no Kajitsu
Happiness! Re:Lucks
Kamikaze ☆ Explorer!
Makai Tenshi Djibril -Episode 4-
+Sengoku Tenshi Djibril
Shukufuku no Campanella
TsunaBan ♥ Love Mix
Utatemeguri
@@ -241,7 +242,7 @@ Shoujo Senki Soul Eater
| *.prs | YB | No |
| *.way | WADY | No |
| *.dat | - | No | M no Violet | Nanase Ren |
-| * | gra
mas | No |
+| * | gra
mas
dif | No |
| *.ald | - | No | Alice Soft | Tsuma Shibori |
| *.qnt | QNT | No |
*.pd
*.pb | - | No | Discovery | Tsuma Tsuma |
@@ -552,6 +553,7 @@ Gigai no Alruna
sys4ini.bin
sys3ini.bin
*.alf | S4IC
S3IC | No | Eushully |
Kuutei Senki ~Tasogare ni Shizumu Kusabi~
+Meishoku no Reiki
Soukai no Oujo-tachi
Soukai no Valkyria
|