diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 3e101597..f8c8904b 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -79,6 +79,7 @@
+
diff --git a/ArcFormats/Crowd/ImageGAX.cs b/ArcFormats/Crowd/ImageGAX.cs
new file mode 100644
index 00000000..4a12ea60
--- /dev/null
+++ b/ArcFormats/Crowd/ImageGAX.cs
@@ -0,0 +1,181 @@
+//! \file ImageGAX.cs
+//! \date Fri Jul 22 04:07:09 2016
+//! \brief ANIM encrypted image.
+//
+// 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.Crowd
+{
+ internal class GaxMetaData : ImageMetaData
+ {
+ public byte[] Key;
+ }
+
+ [Export(typeof(ImageFormat))]
+ public class GaxFormat : ImageFormat
+ {
+ public override string Tag { get { return "GAX"; } }
+ public override string Description { get { return "ANIM encrypted image"; } }
+ public override uint Signature { get { return 0x01000000; } }
+
+ public override ImageMetaData ReadMetaData (Stream stream)
+ {
+ var key = new byte[0x10];
+ stream.Position = 4;
+ if (key.Length != stream.Read (key, 0, key.Length))
+ return null;
+ using (var enc = new InputProxyStream (stream, true))
+ using (var input = new CryptoStream (enc, new GaxTransform (key), CryptoStreamMode.Read))
+ {
+ var info = Png.ReadMetaData (input);
+ if (null == info)
+ return null;
+ return new GaxMetaData
+ {
+ OffsetX = info.OffsetX,
+ OffsetY = info.OffsetY,
+ Width = info.Width,
+ Height = info.Height,
+ BPP = info.BPP,
+ Key = key,
+ };
+ }
+ }
+
+ public override ImageData Read (Stream stream, ImageMetaData info)
+ {
+ var meta = (GaxMetaData)info;
+ using (var enc = new StreamRegion (stream, 0x14, true))
+ using (var input = new CryptoStream (enc, new GaxTransform (meta.Key), CryptoStreamMode.Read))
+ return Png.Read (input, info);
+ }
+
+ public override void Write (Stream file, ImageData image)
+ {
+ throw new System.NotImplementedException ("GaxFormat.Write not implemented");
+ }
+ }
+
+ internal sealed class GaxTransform : ICryptoTransform
+ {
+ private const int BlockSize = 16;
+ private byte[] m_key;
+
+ public bool CanReuseTransform { get { return false; } }
+ public bool CanTransformMultipleBlocks { get { return true; } }
+ public int InputBlockSize { get { return BlockSize; } }
+ public int OutputBlockSize { get { return BlockSize; } }
+
+ public GaxTransform (byte[] key)
+ {
+ m_key = key.Clone() as byte[];
+ }
+
+ public int TransformBlock (byte[] inputBuffer, int inputOffset, int inputCount,
+ byte[] outputBuffer, int outputOffset)
+ {
+ int inputEnd = inputOffset + inputCount;
+ while (inputOffset < inputEnd)
+ {
+ int k;
+ for (k = 0; k < BlockSize && inputOffset < inputEnd; ++k)
+ {
+ outputBuffer[outputOffset++] = (byte)(inputBuffer[inputOffset++] ^ m_key[k]);
+ }
+ if (k < BlockSize)
+ break;
+ byte m = outputBuffer[outputOffset-2];
+ switch (m & 7)
+ {
+ case 0:
+ m_key[0] += m;
+ m_key[3] += (byte)(m + 2);
+ m_key[4] = (byte)(m_key[2] + m + 11);
+ m_key[8] = (byte)(m_key[6] + 7);
+ break;
+ case 1:
+ m_key[2] = (byte)(m_key[9] + m_key[10]);
+ m_key[6] = (byte)(m_key[7] + m_key[15]);
+ m_key[8] += m_key[1];
+ m_key[15] = (byte)(m_key[3] + m_key[5]);
+ break;
+ case 2:
+ m_key[1] += m_key[2];
+ m_key[5] += m_key[6];
+ m_key[7] += m_key[8];
+ m_key[10]+= m_key[11];
+ break;
+ case 3:
+ m_key[9] = (byte)(m_key[1] + m_key[2]);
+ m_key[11] = (byte)(m_key[5] + m_key[6]);
+ m_key[12] = (byte)(m_key[7] + m_key[8]);
+ m_key[13] = (byte)(m_key[10] + m_key[11]);
+ break;
+ case 4:
+ m_key[0] = (byte)(m_key[1] + 0x6F);
+ m_key[3] = (byte)(m_key[4] + 0x47);
+ m_key[4] = (byte)(m_key[5] + 0x11);
+ m_key[14] = (byte)(m_key[15] + 0x40);
+ break;
+ case 5:
+ m_key[2] += m_key[10];
+ m_key[4] = (byte)(m_key[5] + m_key[12]);
+ m_key[6] = (byte)(m_key[8] + m_key[14]);
+ m_key[8] = (byte)(m_key[0] + m_key[11]);
+ break;
+ case 6:
+ m_key[9] = (byte)(m_key[1] + m_key[11]);
+ m_key[11] = (byte)(m_key[3] + m_key[13]);
+ m_key[13] = (byte)(m_key[5] + m_key[15]);
+ m_key[15] = (byte)(m_key[7] + m_key[9]);
+ goto case 7;
+ case 7:
+ m_key[1] = (byte)(m_key[5] + m_key[9]);
+ m_key[2] = (byte)(m_key[6] + m_key[10]);
+ m_key[3] = (byte)(m_key[7] + m_key[11]);
+ m_key[4] = (byte)(m_key[8] + m_key[12]);
+ break;
+ }
+ }
+ return inputCount;
+ }
+
+ public byte[] TransformFinalBlock (byte[] inputBuffer, int inputOffset, int inputCount)
+ {
+ byte[] outputBuffer = new byte[inputCount];
+ for (int i = 0; i < inputCount; ++i)
+ {
+ outputBuffer[i] = (byte)(inputBuffer[inputOffset+i] ^ m_key[i]);
+ }
+ return outputBuffer;
+ }
+
+ public void Dispose ()
+ {
+ System.GC.SuppressFinalize (this);
+ }
+ }
+}
diff --git a/supported.html b/supported.html
index 6e4c3063..3adcd5cb 100644
--- a/supported.html
+++ b/supported.html
@@ -117,6 +117,7 @@ Anata o Otoko ni Shite Ageru!
Arpeggio ~Kimi Iro no Melody~
Chikan Kizoku
Futagoza no Paradox
+Happy Princess
Narimono
Reconquista
White ~blanche comme la lune~
@@ -488,12 +489,13 @@ Ura Nyuugaku ~Ineki ni Nureta Kyoukasho~
*.bg_
*.cg_
*.sp_ | AP
AO | Yes |
| *.dpk | DPK | No | DAC | Yumemiru Tsuki no Lunalutia |
| *.dgc | DGC | No |
-| *.pck | - | No | Crowd
Anim |
+ |
| *.pck | - | No | Crowd
Anim |
X Change R
X Change
X Change 2
X Change 2R
Eve to Iu Na no Omocha
+Hirusagari no Danchi In Tsuma
Hissatsu Chikannin II
Otomegari
Ryoujoku Gojuusou
@@ -506,6 +508,7 @@ Zetsuboushi
|
| *.cwd | cwd | No |
| *.eog | CRM | No |
*.zbm
*.cwl | SZDD | No |
+| *.gax | \x00\x00\x00\x01 | No |
| *.pack | FilePackVer1.0
FilePackVer2.0
FilePackVer3.0 | No | QLIE |
Bishoujo Mangekyou -Kami ga Tsukuritamouta Shoujo-tachi-
Hidamari Basket
|