implemented DCF images.

ArcFormats/AliceSoft/ImageDCF.cs

@@ -0,0 +1,252 @@
+//! \file       ImageDCF.cs
+//! \date       Fri Jul 29 14:07:15 2016
+//! \brief      AliceSoft incremental image format.
+//
+// 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;
+using System.ComponentModel.Composition;
+using System.Diagnostics;
+using System.IO;
+using System.Windows;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using GameRes.Compression;
+using GameRes.Utility;
+
+namespace GameRes.Formats.AliceSoft
+{
+    internal class DcfMetaData : ImageMetaData
+    {
+        public string   BaseName;
+        public long     DataOffset;
+    }
+
+    [Export(typeof(ImageFormat))]
+    public class DcfFormat : ImageFormat
+    {
+        public override string         Tag { get { return "DCF"; } }
+        public override string Description { get { return "AliceSoft System incremental image"; } }
+        public override uint     Signature { get { return 0x20666364; } } // 'dcf '
+
+        public override ImageMetaData ReadMetaData (Stream stream)
+        {
+            using (var reader = new ArcView.Reader (stream))
+            {
+                stream.Seek (4, SeekOrigin.Current);
+                uint header_size = reader.ReadUInt32();
+                long data_pos = stream.Position + header_size;
+                if (reader.ReadInt32() != 1)
+                    return null;
+                uint width  = reader.ReadUInt32();
+                uint height = reader.ReadUInt32();
+                int bpp = reader.ReadInt32();
+                int name_length = reader.ReadInt32();
+                if (name_length <= 0)
+                    return null;
+                int shift = (name_length % 7) + 1;
+                var name_bits = reader.ReadBytes (name_length);
+                for (int i = 0; i < name_length; ++i)
+                {
+                    name_bits[i] = Binary.RotByteL (name_bits[i], shift);
+                }
+                return new DcfMetaData
+                {
+                    Width = width,
+                    Height = height,
+                    BPP = bpp,
+                    BaseName = Encodings.cp932.GetString (name_bits),
+                    DataOffset = data_pos,
+                };
+            }
+        }
+
+        public override ImageData Read (Stream stream, ImageMetaData info)
+        {
+            using (var reader = new DcfReader (stream, (DcfMetaData)info))
+            {
+                reader.Unpack();
+                return ImageData.Create (info, reader.Format, null, reader.Data, reader.Stride);
+            }
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("DcfFormat.Write not implemented");
+        }
+    }
+
+    internal class DcfReader : IDisposable
+    {
+        BinaryReader        m_input;
+        DcfMetaData         m_info;
+        byte[]              m_output;
+        byte[]              m_mask = null;
+        byte[]              m_base = null;
+        int                 m_overlay_bpp;
+        int                 m_base_bpp;
+
+        static readonly Lazy<ImageFormat> s_QntFormat = new Lazy<ImageFormat> (() => ImageFormat.FindByTag ("QNT"));
+
+        internal ImageFormat  Qnt { get { return s_QntFormat.Value; } }
+
+        public byte[]        Data { get { return m_output; } }
+        public PixelFormat Format { get; private set; }
+        public int         Stride { get; private set; }
+
+        public DcfReader (Stream input, DcfMetaData info)
+        {
+            m_input = new ArcView.Reader (input);
+            m_info = info;
+        }
+
+        public void Unpack ()
+        {
+            long next_pos = m_info.DataOffset;
+            for (;;)
+            {
+                m_input.BaseStream.Position = next_pos;
+                uint id = m_input.ReadUInt32();
+                next_pos += 8 + m_input.ReadUInt32();
+                if (0x6C646664 == id) // 'dfdl'
+                {
+                    int unpacked_size = m_input.ReadInt32();
+                    if (unpacked_size <= 0)
+                        continue;
+                    m_mask = new byte[unpacked_size];
+                    using (var input = new ZLibStream (m_input.BaseStream, CompressionMode.Decompress, true))
+                        input.Read (m_mask, 0, unpacked_size);
+                }
+                else if (0x64676364 == id) // 'dcgd'
+                    break;
+            }
+            long qnt_pos = m_input.BaseStream.Position;
+            if (m_input.ReadUInt32() != Qnt.Signature)
+                throw new InvalidFormatException();
+            m_input.BaseStream.Seek (-4, SeekOrigin.Current);
+            var qnt_info = Qnt.ReadMetaData (m_input.BaseStream) as QntMetaData;
+            if (null == qnt_info)
+                throw new InvalidFormatException();
+
+            m_input.BaseStream.Position = qnt_pos + 0x44;
+            var overlay = new QntFormat.Reader (m_input.BaseStream, qnt_info);
+            overlay.Unpack();
+            m_overlay_bpp = overlay.BPP;
+            if (m_mask != null)
+                ReadBaseImage();
+
+            if (m_base != null)
+            {
+                m_output = ApplyOverlay (overlay.Data);
+                SetFormat ((int)m_info.Width, m_base_bpp);
+            }
+            else
+            {
+                m_output = overlay.Data;
+                SetFormat ((int)qnt_info.Width, m_overlay_bpp);
+            }
+        }
+
+        void SetFormat (int width, int bpp)
+        {
+            Format = 24 == bpp ? PixelFormats.Bgr24 : PixelFormats.Bgra32;
+            Stride = width * (bpp / 8);
+        }
+
+        byte[] ApplyOverlay (byte[] overlay)
+        {
+            int blocks_x = (int)m_info.Width / 0x10;
+            int blocks_y = (int)m_info.Height / 0x10;
+            int base_step = m_base_bpp / 8;
+            int overlay_step = m_overlay_bpp / 8;
+            int base_stride = (int)m_info.Width * base_step;
+            int overlay_stride = (int)m_info.Width * overlay_step;
+            int mask_pos = 4;
+            for (int y = 0; y < blocks_y; ++y)
+            {
+                int base_pos = y * 0x10 * base_stride;
+                int src_pos  = y * 0x10 * overlay_stride;
+                for (int x = 0; x < blocks_x; ++x)
+                {
+                    if (0 != m_mask[mask_pos++])
+                        continue;
+                    for (int by = 0; by < 0x10; ++by)
+                    {
+                        int dst = base_pos + by * base_stride    + x * 0x10 * base_step;
+                        int src = src_pos  + by * overlay_stride + x * 0x10 * overlay_step;
+                        for (int bx = 0; bx < 0x10; ++bx)
+                        {
+                            m_base[dst  ] = overlay[src  ];
+                            m_base[dst+1] = overlay[src+1];
+                            m_base[dst+2] = overlay[src+2];
+                            if (4 == base_step)
+                            {
+                                m_base[dst+3] = 4 == overlay_step ? overlay[src+3] : (byte)0xFF;
+                            }
+                            dst += base_step;
+                            src += overlay_step;
+                        }
+                    }
+                }
+            }
+            return m_base;
+        }
+
+        void ReadBaseImage ()
+        {
+            try
+            {
+                string dir_name = VFS.GetDirectoryName (m_info.FileName);
+                string base_name = Path.ChangeExtension (m_info.BaseName, "qnt");
+                base_name = VFS.CombinePath (dir_name, base_name);
+                using (var base_file = VFS.OpenSeekableStream (base_name))
+                {
+                    var base_info = Qnt.ReadMetaData (base_file) as QntMetaData;
+                    if (null != base_info && m_info.Width == base_info.Width && m_info.Height == base_info.Height)
+                    {
+                        base_info.FileName = base_name;
+                        var reader = new QntFormat.Reader (base_file, base_info);
+                        reader.Unpack();
+                        m_base_bpp = reader.BPP;
+                        m_base = reader.Data;
+                    }
+                }
+            }
+            catch (Exception X)
+            {
+                Trace.WriteLine (X.Message, "[DCF]");
+            }
+        }
+
+        #region IDisposable Members
+        bool _disposed = false;
+        public void Dispose ()
+        {
+            if (!_disposed)
+            {
+                m_input.Dispose();
+                _disposed = true;
+            }
+        }
+        #endregion
+    }
+}

ArcFormats/AliceSoft/ImageQNT.cs

@@ -80,20 +80,15 @@ namespace GameRes.Formats.AliceSoft
 
         public override ImageData Read (Stream stream, ImageMetaData info)
         {
-            var meta = info as QntMetaData;
-            if (null == meta)
-                throw new ArgumentException ("QntFormat.Read should be supplied with QntMetaData", "info");
             stream.Position = 0x44;
-            using (var reader = new Reader (stream, meta))
+            var reader = new Reader (stream, (QntMetaData)info);
-            {
+            reader.Unpack();
-                reader.Unpack();
+            int stride = (int)info.Width * (reader.BPP / 8);
-                int stride = (int)info.Width * (reader.BPP / 8);
+            PixelFormat format = 24 == reader.BPP ? PixelFormats.Bgr24 : PixelFormats.Bgra32;
-                PixelFormat format = 24 == reader.BPP ? PixelFormats.Bgr24 : PixelFormats.Bgra32;
+            return ImageData.Create (info, format, null, reader.Data, stride);
-                return ImageData.Create (info, format, null, reader.Data, stride);
-            }
         }
 
-        internal class Reader : IDisposable
+        internal class Reader
         {
             byte[]  m_input;
             byte[]  m_alpha;
@@ -196,13 +191,6 @@ namespace GameRes.Formats.AliceSoft
                     }
                 }
             }
-
-            #region IDisposable Members
-            public void Dispose ()
-            {
-                GC.SuppressFinalize (this);
-            }
-            #endregion
         }
     }
 }

ArcFormats/ArcFormats.csproj

@@ -75,6 +75,7 @@
     <Compile Include="Actgs\ArcDAT.cs" />
     <Compile Include="AliceSoft\ArcAFA.cs" />
     <Compile Include="AliceSoft\ArcALK.cs" />
+    <Compile Include="AliceSoft\ImageDCF.cs" />
     <Compile Include="AnimeGameSystem\WidgetAGS.xaml.cs">
       <DependentUpon>WidgetAGS.xaml</DependentUpon>
     </Compile>