implemented GCEX archives and BGRA images.

ArcFormats/ArcFormats.csproj

@@ -88,6 +88,7 @@
     <Compile Include="ArcFPK.cs" />
     <Compile Include="ArcFVP.cs" />
     <Compile Include="ArcGameDat.cs" />
+    <Compile Include="ArcGCEX.cs" />
     <Compile Include="ArcGPK.cs" />
     <Compile Include="ArcGSP.cs" />
     <Compile Include="ArcGsPack.cs" />
@@ -135,6 +136,7 @@
     <Compile Include="AudioWWA.cs" />
     <Compile Include="EriReader.cs" />
     <Compile Include="ImageABM.cs" />
+    <Compile Include="ImageBGRA.cs" />
     <Compile Include="ImageDWQ.cs" />
     <Compile Include="ImageHIZ.cs" />
     <Compile Include="ImageKG.cs" />

ArcFormats/ArcGCEX.cs

@@ -0,0 +1,286 @@
+//! \file       ArcGCEX.cs
+//! \date       Tue Aug 18 04:25:02 2015
+//! \brief      G2 engine resources archive.
+//
+// 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.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.Diagnostics;
+using System.IO;
+using GameRes.Utility;
+
+namespace GameRes.Formats.G2
+{
+    [Export(typeof(ArchiveFormat))]
+    public class PakOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "PAK/G2"; } }
+        public override string Description { get { return "G2 engine resource archive"; } }
+        public override uint     Signature { get { return 0x58454347; } } // 'GCEX'
+        public override bool  IsHierarchic { get { return true; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (0 != file.View.ReadInt32 (4))
+                return null;
+            long index_offset = file.View.ReadInt64 (8);
+            if (index_offset >= file.MaxOffset)
+                return null;
+            if (!file.View.AsciiEqual (index_offset, "GCE3"))
+                return null;
+            int count = file.View.ReadInt32 (index_offset+0x18);
+            if (!IsSaneCount (count))
+                return null;
+            bool index_packed = 0x11 == file.View.ReadInt32 (index_offset+4);
+            uint index_size = file.View.ReadUInt32 (index_offset+8);
+            byte[] index = null;
+            if (index_packed)
+            {
+                index_size -= 0x28;
+                int unpacked_size = file.View.ReadInt32 (index_offset+0x20);
+                using (var input = file.CreateStream (index_offset+0x28, index_size))
+                using (var reader = new GceReader (input, unpacked_size))
+                    index = reader.Data;
+            }
+            else
+            {
+                index_size -= 0x20;
+                index = new byte[index_size];
+                if (index.Length != file.View.Read (index_offset+0x20, index, 0, index_size))
+                    return null;
+            }
+            int current_index = 0;
+            int current_filename = 0x20*count;
+            long current_offset = 0x10;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                int name_length = LittleEndian.ToUInt16 (index, current_filename);
+                if (current_filename+2+name_length > index.Length)
+                    return null;
+                uint size = LittleEndian.ToUInt32 (index, current_index+0x18);
+                if (size != 0)
+                {
+                    string name = Encodings.cp932.GetString (index, current_filename+2, name_length);
+                    var entry = new PackedEntry
+                    {
+                        Name = name,
+                        Type = FormatCatalog.Instance.GetTypeFromName (name),
+                        Offset = current_offset,
+                        Size = size,
+                        UnpackedSize = LittleEndian.ToUInt32 (index, current_index+0x10),
+                    };
+                    if (!entry.CheckPlacement (file.MaxOffset))
+                        return null;
+                    entry.IsPacked = entry.Size != entry.UnpackedSize;
+                    current_offset += entry.Size;
+                    dir.Add (entry);
+                }
+                current_index += 0x20;
+                current_filename += 2 + name_length;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            if (0 == entry.Size)
+                return Stream.Null;
+            var input = arc.File.CreateStream (entry.Offset, entry.Size);
+            var pentry = entry as PackedEntry;
+            if (null == pentry || !pentry.IsPacked)
+                return input;
+            if (!arc.File.View.AsciiEqual (entry.Offset, "GCE"))
+            {
+                Trace.WriteLine ("Packed entry is not GCE", entry.Name);
+                return input;
+            }
+            using (input)
+            using (var reader = new GceReader (input, (int)pentry.UnpackedSize))
+            {
+                return new MemoryStream (reader.Data);
+            }
+        }
+    }
+
+    internal class GceReader : IDisposable
+    {
+        BinaryReader    m_input;
+        int             m_unpacked_size;
+        byte[]          m_output = null;
+        int             m_dst;
+
+        public byte[] Data
+        {
+            get
+            {
+                if (null == m_output)
+                {
+                    m_output = new byte[m_unpacked_size];
+                    Unpack();
+                }
+                return m_output;
+            }
+        }
+
+        public GceReader (Stream input, int unpacked_size)
+        {
+            m_input = new ArcView.Reader (input);
+            m_unpacked_size = unpacked_size;
+        }
+
+        private void Unpack ()
+        {
+            m_dst = 0;
+            byte[] id = new byte[4];
+            while (m_input.BaseStream.Position < m_input.BaseStream.Length)
+            {
+                if (4 != m_input.Read (id, 0, 4))
+                    break;
+                int segment_length = m_input.ReadInt32();
+                if (Binary.AsciiEqual (id, "GCE1"))
+                {
+                    m_input.ReadInt32();
+                    int data_length = m_input.ReadInt32();
+
+                    m_input.ReadInt32();
+                    int cmd_len = m_input.ReadInt32();
+                    long cmd_pos = m_input.BaseStream.Position + data_length;
+                    ReadControlStream (cmd_pos, cmd_len);
+
+                    int next = m_dst + segment_length;
+                    UnpackGce1Segment (data_length, segment_length);
+                    m_dst = next;
+                    m_input.BaseStream.Position = cmd_pos + cmd_len;
+                }
+                else if (Binary.AsciiEqual (id, "GCE0"))
+                {
+                    if (segment_length != m_input.Read (m_output, m_dst, segment_length))
+                        throw new EndOfStreamException();
+                    m_dst += segment_length;
+                }
+                else
+                {
+                    throw new InvalidFormatException ("Unknown compression type in GCE stream");
+                }
+            }
+        }
+
+        int[] m_frame = new int[0x10000];
+
+        void UnpackGce1Segment (int data_len, int segment_length)
+        {
+            for (int i = 0; i < m_frame.Length; ++i)
+                m_frame[i] = 0;
+            int frame_pos = 0;
+
+            int data_pos = 0;
+            int dst_end = m_dst + segment_length;
+            while (data_pos < data_len && m_dst < dst_end)
+            {
+                int n = GetLength();
+                while (n --> 0)
+                {
+                    m_frame[frame_pos] = m_dst;
+                    byte b = m_input.ReadByte();
+                    data_pos++;
+                    frame_pos = ((frame_pos << 8) | b) & 0xFFFF;
+                    m_output[m_dst++] = b;
+                }
+                if (m_dst >= dst_end)
+                    break;
+                n = GetLength() + 1;
+                int src = m_frame[frame_pos];
+                while (n --> 0)
+                {
+                    m_frame[frame_pos] = m_dst;
+                    frame_pos = ((frame_pos << 8) | m_output[src]) & 0xFFFF;
+                    m_output[m_dst++] = m_output[src++];
+                }
+            }
+        }
+
+        int GetLength ()
+        {
+            int v = 0;
+            if (0 == GetBit())
+            {
+                int digits = 0;
+                while (0 == GetBit())
+                    ++digits;
+                v = 1 << digits;
+                while (digits --> 0)
+                    v |= GetBit() << digits;
+            }
+            return v;
+        }
+
+        byte[] m_control;
+        int     m_control_pos;
+        int     m_control_len;
+        int     m_bit_pos;
+
+        void ReadControlStream (long pos, int length)
+        {
+            var data_pos = m_input.BaseStream.Position;
+            if (null == m_control || m_control.Length < length)
+                m_control = new byte[length];
+            m_input.BaseStream.Position = pos;
+            if (length != m_input.Read (m_control, 0, length))
+                throw new EndOfStreamException();
+            m_control_pos = 0;
+            m_control_len = length;
+            m_input.BaseStream.Position = data_pos;
+            m_bit_pos = 8;
+        }
+
+        int GetBit ()
+        {
+            if (0 == m_bit_pos--)
+            {
+                ++m_control_pos;
+                m_bit_pos = 7;
+                --m_control_len;
+                if (0 == m_control_len)
+                    throw new EndOfStreamException();
+            }
+            return 1 & (m_control[m_control_pos] >> m_bit_pos);
+        }
+
+        #region IDisposable Members
+        bool m_disposed = false;
+        public void Dispose ()
+        {
+            if (!m_disposed)
+            {
+                if (m_input != null)
+                    m_input.Dispose();
+                m_disposed = true;
+                GC.SuppressFinalize (this);
+            }
+        }
+        #endregion
+    }
+}

ArcFormats/ImageBGRA.cs

@@ -0,0 +1,75 @@
+//! \file       ImageBGRA.cs
+//! \date       Tue Aug 18 15:56:18 2015
+//! \brief      G2 enging 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.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+using GameRes.Utility;
+
+namespace GameRes.Formats.G2
+{
+    [Export(typeof(ImageFormat))]
+    public class BgraFormat : ImageFormat
+    {
+        public override string         Tag { get { return "BGRA"; } }
+        public override string Description { get { return "G2 engine image format"; } }
+        public override uint     Signature { get { return 0x41524742; } } // 'BGRA'
+
+        public BgraFormat ()
+        {
+            Extensions = new string[] { "argb", "arg" };
+        }
+
+        public override ImageMetaData ReadMetaData (Stream stream)
+        {
+            var header = new byte[0x10];
+            if (header.Length != stream.Read (header, 0, header.Length))
+                return null;
+            uint bitmap = LittleEndian.ToUInt32 (header, 4);
+            if (0x08080808 != bitmap)
+                return null;
+            return new ImageMetaData
+            {
+                Width = LittleEndian.ToUInt32 (header, 8),
+                Height = LittleEndian.ToUInt32 (header, 12),
+                BPP = 32,
+            };
+        }
+
+        public override ImageData Read (Stream stream, ImageMetaData info)
+        {
+            stream.Seek (0x10, SeekOrigin.Current);
+            var pixels = new byte[info.Width*info.Height*4];
+            if (pixels.Length != stream.Read (pixels, 0, pixels.Length))
+                throw new EndOfStreamException();
+            return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("BgraFormat.Write not implemented");
+        }
+    }
+}

supported.html

@@ -26,6 +26,7 @@ tr.odd td { background-color: #eee }
 Anata no Osanazuma<br/>
 Ecchi na Bunny-san wa Kirai?<br/>
 Kana ~Imouto~<br/>
+Kohitsuji-tachi no Rakuen<br/>
 Natsu no Hitoshizuku<br/>
 Private Nurse<br/>
 Sensei 2<br/>
@@ -92,7 +93,10 @@ Sweet Pool<br/>
 Zoku Satsuriku no Django<br/>
 </td></tr>
 <tr class="odd"><td>*.npa</td><td>-</td><td>Yes</td><td>Nitro+</td><td>Steins;Gate</td></tr>
-<tr><td>*.pak</td><td><tt>\003\000\000\000</tt></td><td>No</td><td>Nitro+</td><td>Hanachirasu</td></tr>
+<tr><td>*.pak</td><td><tt>\002\000\000\000</tt><br/><tt>\003\000\000\000</tt></td><td>No</td><td>Nitro+</td><td>
+Hanachirasu<br/>
+Jingai Makyou<br/>
+</td></tr>
 <tr class="odd"><td>*.nsa<br/>*.sar</td><td>-</td><td>Yes</td><td>NScripter</td><td>
 Binary Pot<br/>
 Tsukihime<br/>
@@ -289,8 +293,13 @@ Jokei Kazoku ~Inbou~<br/>
 <tr><td>*.gcc</td><td><tt>G24n</tt><br/><tt>G24m</tt><br/><tt>R24n</tt><br/><tt>R24m</tt></td><td>No</td></tr>
 <tr class="odd"><td>*.arc</td><td>-</td><td>No</td><td>Tumugi</td><td>Kimi no Omoi, Sono Negai</td></tr>
 <tr><td>*.iks</td><td><tt>NPSR</tt></td><td>No</td><td>X[iks]</td><td>Shikkan ~Hazukashimerareta Karada, Oreta Kokoro~</td></tr>
-<tr class="odd"><td>*.wbp</td><td><tt>ARCFORM3 WBUG</tt></td><td>No</td><td rowspan="2">Wild Bug</td><td rowspan="2">Yuukyou Gangu 2</td></tr>
-<tr class="odd"><td>*.wbm</td><td><tt>WPX</tt></td><td>No</td></tr>
+<tr class="odd"><td>*.wbp</td><td><tt>ARCFORM3 WBUG</tt></td><td>No</td><td rowspan="4">Wild Bug</td><td rowspan="4">
+Happy Planning<br/>
+Yuukyou Gangu 2<br/>
+</td></tr>
+<tr class="odd"><td>*.wbm</td><td><tt>WPX\x1ABMP</tt></td><td>No</td></tr>
+<tr class="odd"><td>*.wpn</td><td><tt>WBD\x1AWAV</tt></td><td>No</td></tr>
+<tr class="odd"><td>*.wwa</td><td><tt>WPX\x1AWAV</tt></td><td>No</td></tr>
 <tr><td>*.mrg</td><td><tt>MRG</tt></td><td>No</td><td rowspan="3">F&amp;C</td><td rowspan="3">Konata yori Kanata made</td></tr>
 <tr><td>*.mcg</td><td><tt>MCG 2.00</tt></td><td>No</td></tr>
 <tr><td>*.acd</td><td><tt>ACD 1.00</tt></td><td>No</td></tr>
@@ -332,6 +341,10 @@ Kikouyoku Senki Gin no Toki no Corona<br/>
 SuGirly Wish<br/>
 </td></tr>
 <tr class="odd"><td>*.ykg</td><td><tt>YKG000</tt></td><td>No</td></tr>
+<tr><td>*.pak</td><td><tt>GCEX</tt></td><td>No</td><td rowspan="2">G2</td><td rowspan="2">
+Majiresu!! ~Omatase Little Wing~<br/>
+</td></tr>
+<tr><td>*.arg<br/>*.argb</td><td><tt>BGRA</tt></td><td>No</td></tr>
 </table>
 <p><a name="note-1" class="footnote">1</a> Non-encrypted only</p>
 </body>