implemented ARC0 archives and PB00 images.

ArcFormats/ArcFormats.csproj

@@ -104,6 +104,8 @@
     <Compile Include="Entis\ArcPAC.cs" />
     <Compile Include="Lz4Stream.cs" />
     <Compile Include="Majiro\ImageRC8.cs" />
+    <Compile Include="Mixwill\ArcARC0.cs" />
+    <Compile Include="Mixwill\ImagePB00.cs" />
     <Compile Include="NSystem\ArcFJSYS.cs" />
     <Compile Include="NSystem\ImageMGD.cs" />
     <Compile Include="NSystem\WidgetMSD.xaml.cs">

ArcFormats/Mixwill/ArcARC0.cs

@@ -0,0 +1,96 @@
+//! \file       ArcARC0.cs
+//! \date       Sat Jan 14 23:23:37 2017
+//! \brief      Mixwill soft resource archive.
+//
+// Copyright (C) 2017 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;
+
+namespace GameRes.Formats.Mixwill
+{
+    [Export(typeof(ArchiveFormat))]
+    public class Arc0Opener : ArchiveFormat
+    {
+        public override string         Tag { get { return "ARC0"; } }
+        public override string Description { get { return "Mixwill soft resource archive"; } }
+        public override uint     Signature { get { return 0x30435241; } } // 'ARC0'
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool      CanWrite { get { return false; } }
+
+        public Arc0Opener ()
+        {
+            Extensions = new string[] { "arc" };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            int count = file.View.ReadInt32 (0x10004);
+            if (!IsSaneCount (count))
+                return null;
+            var name_buf = new byte[0x100];
+            uint index_offset = 0x10008;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                if (0x100 != file.View.Read (index_offset, name_buf, 0, 0x100))
+                    return null;
+                int n;
+                for (n = 0; n < 0x100; ++n)
+                {
+                    name_buf[n] ^= (byte)n;
+                    if (0 == name_buf[n])
+                        break;
+                }
+                if (0 == n)
+                    return null;
+                index_offset += 0x100;
+                var name = Encodings.cp932.GetString (name_buf, 0, n);
+                var entry = FormatCatalog.Instance.Create<Entry> (name);
+                entry.Size   = file.View.ReadUInt32 (index_offset);
+                entry.Offset = file.View.ReadUInt32 (index_offset+4);
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+                index_offset += 8;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            uint encrypted_size = entry.Size;
+            if (!entry.Name.EndsWith (".txt", StringComparison.InvariantCultureIgnoreCase)
+                && encrypted_size > 0x100)
+                encrypted_size = 0x100;
+            var prefix = arc.File.View.ReadBytes (entry.Offset, encrypted_size);
+            for (int i = 0; i < prefix.Length; ++i)
+                prefix[i] ^= (byte)i;
+            if (entry.Size == encrypted_size)
+                return new BinMemoryStream (prefix, entry.Name);
+            var rest = arc.File.CreateStream (entry.Offset+encrypted_size, entry.Size-encrypted_size);
+            return new PrefixStream (prefix, rest);
+        }
+    }
+}

ArcFormats/Mixwill/ImagePB00.cs

@@ -0,0 +1,115 @@
+//! \file       ImagePB00.cs
+//! \date       Sat Jan 14 23:58:54 2017
+//! \brief      Mixwill soft image format.
+//
+// Copyright (C) 2017 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.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+
+namespace GameRes.Formats.Mixwill
+{
+    internal class Pb00MetaData :ImageMetaData
+    {
+        public readonly int[]   ChannelTable = new int[4];
+    }
+
+    [Export(typeof(ImageFormat))]
+    public class Pb00Format : ImageFormat
+    {
+        public override string         Tag { get { return "PB00"; } }
+        public override string Description { get { return "Mixwill soft image format"; } }
+        public override uint     Signature { get { return 0x30304250; } } // 'PB00'
+
+        public Pb00Format ()
+        {
+            Extensions = new string[] { "pb" };
+        }
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            var header = file.ReadHeader (0x20);
+            var info = new Pb00MetaData
+            {
+                Width   = header.ToUInt32 (8),
+                Height  = header.ToUInt32 (0xC),
+                BPP     = header.ToInt32 (4) * 8,
+            };
+            for (int i = 0; i < 4; ++i)
+                info.ChannelTable[i] = header.ToInt32 (0x10 + i * 4);
+
+            return info;
+        }
+
+        static readonly byte[] RgbOrder = { 2, 1, 0, 3 };
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            var meta = (Pb00MetaData)info;
+            int channels = info.BPP/8;
+            var pixels = new byte[info.Width * info.Height * channels];
+            long channel_pos = 0x20;
+            for (int i = 0; i < channels; ++i)
+            {
+                file.Position = channel_pos;
+                int length = meta.ChannelTable[i];
+                channel_pos += length;
+                int dst = RgbOrder[i];
+                for (int j = 0; j < length; ++j)
+                {
+                    int b = file.ReadInt8();
+                    if (b >= 0)
+                    {
+                        for (int count = b + 1; count > 0; --count)
+                        {
+                            pixels[dst] = file.ReadUInt8();
+                            dst += channels;
+                            ++j;
+                        }
+                    }
+                    else
+                    {
+                        byte c = file.ReadUInt8();
+                        for (int count = 1 - b; count > 0; --count)
+                        {
+                            pixels[dst] = c;
+                            dst += channels;
+                        }
+                        ++j;
+                    }
+                }
+            }
+            PixelFormat format;
+            if (4 == channels)
+                format = PixelFormats.Bgra32;
+            else
+                format = PixelFormats.Bgr24;
+            return ImageData.Create (info, format, null, pixels);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("Pb00Format.Write not implemented");
+        }
+    }
+}

supported.html

@@ -276,6 +276,7 @@ Kurenai no Tsuki<br/>
 LOVELY x CATION<br/>
 Mayoeru Futari to Sekai no Subete<br/>
 Mahoutsukai no Yoru<br/>
+Maitetsu<br/>
 Mizukoi<br/>
 Mizu no Miyako no Patisserie<br/>
 Nakadashi Hara Maid series<br/>
@@ -703,6 +704,7 @@ Yuukyou Gangu 2<br/>
 Asa no Konai Yoru ni Dakarete -Eternal Night-<br/>
 Guren ni Somaru Gin no Rozario<br/>
 Konata yori Kanata made<br/>
+Niji no Kanata ni<br/>
 Thirua Panic<br/>
 </td></tr>
 <tr><td>*.mcg</td><td><tt>MCG 2.00</tt></td><td>No</td></tr>
@@ -1317,6 +1319,10 @@ Angelium -Tokimeki Love God-<br/>
 Teri ☆ Mix<br/>
 </td></tr>
 <tr class="last"><td>*.elg</td><td><tt>ELG</tt></td><td>No</td></tr>
+<tr class="odd"><td>*.arc</td><td><tt>ARC0</tt></td><td>No</td><td rowspan="2">Mixwill soft</td><td rowspan="2">
+Onepapa ~Onegai PaPa!~<br/>
+</td></tr>
+<tr class="odd last"><td>*.pb</td><td><tt>PB00</tt></td><td>No</td></tr>
 </table>
 <p><a name="note-1" class="footnote">1</a> Non-encrypted only</p>
 </body>