implemented SZS archives and TIG images.

ArcFormats/ArcFormats.csproj

@@ -120,8 +120,10 @@
     <Compile Include="RealLive\ImagePDT.cs" />
     <Compile Include="Silky\ImageZIT.cs" />
     <Compile Include="SimpleEncryption.cs" />
+    <Compile Include="Slg\ArcSZS.cs" />
     <Compile Include="Slg\AudioVOI.cs" />
     <Compile Include="Slg\ImageALB.cs" />
+    <Compile Include="Slg\ImageTIG.cs" />
     <Compile Include="Softpal\ArcPAC.cs" />
     <Compile Include="Softpal\AudioBGM.cs" />
     <Compile Include="Softpal\ImagePGD.cs" />

ArcFormats/Slg/ArcSZS.cs

@@ -0,0 +1,76 @@
+//! \file       ArcSZS.cs
+//! \date       Sat Jun 04 17:31:59 2016
+//! \brief      SLG system resource archive.
+//
+// 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.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Security.Cryptography;
+
+namespace GameRes.Formats.Slg
+{
+    [Export(typeof(ArchiveFormat))]
+    public class SzsOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "SZS"; } }
+        public override string Description { get { return "SLG system resource archive"; } }
+        public override uint     Signature { get { return 0x31535A53; } } // 'SZS1'
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            int version = file.View.ReadByte (4) - '0';
+            if (version < 0 || !file.View.AsciiEqual (5, "0__"))
+                return null;
+            int count = file.View.ReadInt16 (0xC);
+            if (!IsSaneCount (count))
+                return null;
+
+            uint index_offset = 0x10;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                var name = file.View.ReadString (index_offset, 0x100);
+                if (string.IsNullOrWhiteSpace (name))
+                    return null;
+                index_offset += 0x100;
+                var entry = FormatCatalog.Instance.Create<Entry> (name);
+                entry.Offset = file.View.ReadInt64 (index_offset);
+                entry.Size   = file.View.ReadUInt32 (index_offset+8);
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+                index_offset += 0x10;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            var input = arc.File.CreateStream (entry.Offset, entry.Size);
+            return new CryptoStream (input, new XorTransform (0x90), CryptoStreamMode.Read);
+        }
+    }
+}

ArcFormats/Slg/ImageTIG.cs

@@ -0,0 +1,98 @@
+//! \file       ImageTIG.cs
+//! \date       Sat Jun 04 18:00:15 2016
+//! \brief      SLG system encrypted PNG 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.ComponentModel.Composition;
+using System.IO;
+using System.Security.Cryptography;
+
+namespace GameRes.Formats.Slg
+{
+    [Export(typeof(ImageFormat))]
+    public class TigFormat : PngFormat
+    {
+        public override string         Tag { get { return "TIG"; } }
+        public override string Description { get { return "SLG system encrypted PNG image"; } }
+        public override uint     Signature { get { return 0x7CF3C28B; } }
+
+        public override ImageMetaData ReadMetaData (Stream stream)
+        {
+            using (var proxy = new ProxyStream (stream, true))
+            using (var input = new CryptoStream (proxy, new TigTransform(), CryptoStreamMode.Read))
+                return base.ReadMetaData (input);
+        }
+
+        public override ImageData Read (Stream stream, ImageMetaData info)
+        {
+            using (var proxy = new ProxyStream (stream, true))
+            using (var input = new CryptoStream (proxy, new TigTransform(), CryptoStreamMode.Read))
+                return base.Read (input, info);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("TigFormat.Write not implemented");
+        }
+    }
+
+    internal sealed class TigTransform : ICryptoTransform
+    {
+        const int BlockSize = 256;
+        uint m_key;
+
+        public bool          CanReuseTransform { get { return true; } }
+        public bool CanTransformMultipleBlocks { get { return true; } }
+        public int              InputBlockSize { get { return BlockSize; } }
+        public int             OutputBlockSize { get { return BlockSize; } }
+
+        public TigTransform ()
+        {
+            m_key = 0x7F7F7F7F;
+        }
+
+        public int TransformBlock (byte[] inputBuffer, int inputOffset, int inputCount,
+                                   byte[] outputBuffer, int outputOffset)
+        {
+            for (int i = 0; i < inputCount; ++i)
+            {
+                m_key *= 0x343FD;
+                m_key += 0x269EC3;
+                outputBuffer[outputOffset+i] = (byte)(inputBuffer[inputOffset+i] - (m_key >> 16));
+            }
+            return inputCount;
+        }
+
+        public byte[] TransformFinalBlock (byte[] inputBuffer, int inputOffset, int inputCount)
+        {
+            byte[] outputBuffer = new byte[inputCount];
+            TransformBlock (inputBuffer, inputOffset, inputCount, outputBuffer, 0);
+            return outputBuffer;
+        }
+
+        public void Dispose ()
+        {
+            System.GC.SuppressFinalize (this);
+        }
+    }
+}

supported.html

@@ -364,6 +364,7 @@ Lovers Collection<br/>
 Nachtmusik<br/>
 Nachtmusik Another<br/>
 Oto☆Puri<br/>
+Rakuen no Rukia ~Blood Moon Rising~<br/>
 Samayou Mitama ni Yasuragi no Toki wo<br/>
 Time Trouble ~Marie ni Kubikkake~<br/>
 </td></tr>
@@ -579,6 +580,7 @@ Before Dawn Daybreak ~Shinen no Utahime~<br/>
 Gun-Katana<br/>
 Jishou Seirei Majutsushi vs Shinsei Daiikkyuu Akuma<br/>
 Kurogane no Tsubasa ~The Alchemist's Story~<br/>
+Mushitsukai<br/>
 Yami no Koe series<br/>
 </td></tr>
 <tr><td>*.dwq</td><td><tt>BMP</tt><br/><tt>JPEG</tt><br/><tt>PNG</tt><br/><tt>JPEG+MASK</tt><br/><tt>PACKBMP+MASK</tt><br/></td><td>No</td></tr>
@@ -638,6 +640,7 @@ Cross Quartz<br/>
 Hyakki Yakou<br/>
 Saikyou Goshujin-sama! -Mighty My Master-<br/>
 Saiminjutsu Re<br/>
+Wizard Links<br/>
 </td></tr>
 <tr><td>*.med</td><td><tt>MD</tt></td><td>No</td></tr>
 <tr class="odd"><td>*.tcd</td><td><tt>TCD3</tt></td><td>No</td><td rowspan="2">TopCat</td><td rowspan="2">
@@ -809,9 +812,12 @@ Tokyo Necro<br/>
 Thanatos no Koi ~In Ane Otouto Soukan~<br/>
 </td></tr>
 <tr class="odd"><td>*.gps</td><td><tt>GPS</tt></td><td>No</td></tr>
-<tr><td>*.alb</td><td><tt>ALB1.21</tt></td><td>No</td><td rowspan="2">SLG system</td><td rowspan="2">
+<tr><td>*.szs</td><td><tt>SZS100__</tt></td><td>No</td><td rowspan="4">SLG system</td><td rowspan="4">
+Sengoku Hime<br/>
 Shihen 69 ~Shinen no Messiah~<br/>
 </td></tr>
+<tr><td>*.tig</td><td><tt>\x7C\xF3\xC2\x8B</tt></td><td>No</td></tr>
+<tr><td>*.alb</td><td><tt>ALB1.21</tt></td><td>No</td></tr>
 <tr><td>*.voi</td><td>-</td><td>No</td></tr>
 <tr class="odd"><td>*.wag</td><td><tt>IAF_</tt></td><td>No</td><td rowspan="3">Hexenhaus</td><td rowspan="3">
 Angenehm Platz -Kleiner Garten Sie Erstellen-<br/>