diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index e65df7d3..be8f985d 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -206,6 +206,7 @@
+
diff --git a/ArcFormats/ImageMI4.cs b/ArcFormats/ImageMI4.cs
new file mode 100644
index 00000000..68ef366b
--- /dev/null
+++ b/ArcFormats/ImageMI4.cs
@@ -0,0 +1,220 @@
+//! \file ImageMI4.cs
+//! \date Sun Jul 12 15:40:39 2015
+//! \brief ShiinaRio engine image format.
+//
+// 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.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+
+namespace GameRes.Formats.ShiinaRio
+{
+ [Export(typeof(ImageFormat))]
+ public class Mi4Format : ImageFormat
+ {
+ public override string Tag { get { return "MI4"; } }
+ public override string Description { get { return "ShiinaRio image format"; } }
+ public override uint Signature { get { return 0x3449414D; } } // 'MAI4'
+
+ public override ImageMetaData ReadMetaData (Stream stream)
+ {
+ stream.Seek (8, SeekOrigin.Current);
+ using (var input = new ArcView.Reader (stream))
+ {
+ uint width = input.ReadUInt32();
+ uint height = input.ReadUInt32();
+ return new ImageMetaData
+ {
+ Width = width,
+ Height = height,
+ BPP = 24,
+ };
+ }
+ }
+
+ public override ImageData Read (Stream stream, ImageMetaData info)
+ {
+ stream.Position = 0x10;
+ using (var reader = new Reader (stream, (int)info.Width, (int)info.Height))
+ {
+ reader.Unpack ();
+ return ImageData.Create (info, PixelFormats.Bgr24, null, reader.Data);
+ }
+ }
+
+ public override void Write (Stream file, ImageData image)
+ {
+ throw new System.NotImplementedException ("Mi4Format.Write not implemented");
+ }
+
+ internal sealed class Reader : IDisposable
+ {
+ BinaryReader m_input;
+ byte[] m_output;
+ int m_stride;
+
+ public byte[] Data { get { return m_output; } }
+
+ public Reader (Stream file, int width, int height)
+ {
+ m_input = new ArcView.Reader (file);
+ m_stride = width * 3;
+ m_output = new byte[m_stride*height];
+ }
+
+ uint m_bit_count;
+ uint m_bits;
+
+ void ResetBits ()
+ {
+ m_bits = m_input.ReadUInt32();
+ m_bit_count = 32;
+ }
+
+ uint GetBit ()
+ {
+ uint bit = m_bits >> 31;
+ m_bits <<= 1;
+ if (0 == --m_bit_count)
+ {
+ m_bits = m_input.ReadUInt32();
+ m_bit_count = 32;
+ }
+ return bit;
+ }
+
+ uint GetBits (int count)
+ {
+ uint bits = 0;
+ while (count --> 0)
+ {
+ bits = (bits << 1) | GetBit();
+ }
+ return bits;
+ }
+
+ public void Unpack ()
+ {
+ ResetBits();
+ int dst = 0;
+ byte b = 0, g = 0, r = 0;
+ bool bp = false;
+ while (dst < m_output.Length)
+ {
+ if (GetBit() == 0)
+ {
+ if (GetBit() != 0)
+ {
+ b = m_input.ReadByte();
+ g = m_input.ReadByte();
+ r = m_input.ReadByte();
+ }
+ else if (GetBit() != 0)
+ {
+ byte v = (byte)(GetBits(2));
+ if (3 == v)
+ {
+ b = m_output[dst - m_stride];
+ g = m_output[dst - m_stride + 1];
+ r = m_output[dst - m_stride + 2];
+ }
+ else
+ {
+ b += (byte)(v - 1);
+ v = (byte)GetBits (2);
+ if (3 == v)
+ {
+ if (GetBit() != 0)
+ {
+ b = m_output[dst - m_stride - 3];
+ g = m_output[dst - m_stride - 2];
+ r = m_output[dst - m_stride - 1];
+ }
+ else
+ {
+ b = m_output[dst - m_stride + 3];
+ g = m_output[dst - m_stride + 4];
+ r = m_output[dst - m_stride + 5];
+ }
+ }
+ else
+ {
+ g += (byte)(v - 1);
+ r += (byte)(GetBits(2) - 1);
+ }
+ }
+ }
+ else if (GetBit() != 0)
+ {
+ byte v = (byte)(GetBits(3));
+ if (7 == v)
+ {
+ b = m_output[dst - m_stride];
+ g = m_output[dst - m_stride + 1];
+ r = m_output[dst - m_stride + 2];
+ b += (byte)(GetBits(3) - 3);
+ g += (byte)(GetBits(3) - 3);
+ r += (byte)(GetBits(3) - 3);
+ }
+ else
+ {
+ b += (byte)(v - 3);
+ g += (byte)(GetBits(3) - 3);
+ r += (byte)(GetBits(3) - 3);
+ }
+ }
+ else if (GetBit() != 0)
+ {
+ b += (byte)(GetBits(4) - 7);
+ g += (byte)(GetBits(4) - 7);
+ r += (byte)(GetBits(4) - 7);
+ }
+ else
+ {
+ b += (byte)(GetBits(5) - 15);
+ g += (byte)(GetBits(5) - 15);
+ r += (byte)(GetBits(5) - 15);
+ }
+ }
+ m_output[dst++] = b;
+ m_output[dst++] = g;
+ m_output[dst++] = r;
+ }
+ }
+
+ #region IDisposable Members
+ bool disposed = false;
+ public void Dispose ()
+ {
+ if (!disposed)
+ {
+ m_input.Dispose ();
+ disposed = true;
+ }
+ GC.SuppressFinalize (this);
+ }
+ #endregion
+ }
+ }
+}
diff --git a/ArcFormats/Properties/AssemblyInfo.cs b/ArcFormats/Properties/AssemblyInfo.cs
index 279485fe..b9cb3147 100644
--- a/ArcFormats/Properties/AssemblyInfo.cs
+++ b/ArcFormats/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion ("1.0.7.76")]
-[assembly: AssemblyFileVersion ("1.0.7.76")]
+[assembly: AssemblyVersion ("1.0.7.78")]
+[assembly: AssemblyFileVersion ("1.0.7.78")]
diff --git a/supported.html b/supported.html
index 45013c1c..26e665cd 100644
--- a/supported.html
+++ b/supported.html
@@ -154,14 +154,16 @@ Para-Sol
Shouhei-kun no Hani-Kami Life☆
| * | \x00\x00\x04\x00 | No |
-| *.war | WARC 1.7
WARC 1.3 | No | Shiina Rio |
+ |
| *.war | WARC 1.7
WARC 1.5
WARC 1.3 | No | Shiina Rio |
Classmate no Okaa-san
+Enkaku Sousa
Helter Skelter
-Mahou Shoujo no Taisetsu na Koto
Itsuka, Dokoka de ~Ano Ameoto no Kioku~
+Mahou Shoujo no Taisetsu na Koto
Tantei Shounen A
|
| *.s25 | S25 | No |
+| *.mi4 | MAI4 | No |
| *.ogv | OGV | No |
| *.pad | PAD | No |
| * | ARC2
ARC1 | No | AST |
|