Legacy updated.

GRP/RG image format.
improved 'BData' images handling.
YK archives.
'1AWF' archives.

Legacy/Koei/ArcYK.cs

@@ -0,0 +1,206 @@
+//! \file       ArcYK.cs
+//! \date       2023 Sep 10
+//! \brief      Koei data archive.
+//
+// Copyright (C) 2023 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 GameRes.Utility;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+
+// [990312][Koei] Yakusoku no Kizuna
+
+namespace GameRes.Formats.Koei
+{
+    internal class YkArchive : ArcFile
+    {
+        public readonly string YkName;
+
+        public YkArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, string name)
+            : base (arc, impl, dir)
+        {
+            YkName = name;
+        }
+    }
+
+    internal class YkEntry : Entry
+    {
+        public int Id;
+    }
+
+    [Export(typeof(ArchiveFormat))]
+    public partial class YkOpener : ArchiveFormat
+    {
+        public override string         Tag => "YK";
+        public override string Description => "Koei resource archive";
+        public override uint     Signature => 0;
+        public override bool  IsHierarchic => false;
+        public override bool      CanWrite => false;
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (!file.Name.HasExtension (".YK"))
+                return null;
+            var name = Path.GetFileNameWithoutExtension (file.Name).ToUpperInvariant();
+            List<Entry> dir = null;
+            if ("DATA01" == name)
+                dir = GetData01Index (file);
+            else if (OffsetTable.ContainsKey (name))
+                dir = GetDataIndex (file, OffsetTable[name], name);
+            if (null == dir)
+                return null;
+            return new YkArchive (file, this, dir, name);
+        }
+
+        List<Entry> GetData01Index (ArcView file)
+        {
+            int count = (int)(file.MaxOffset / 0x4B400);
+            if (!IsSaneCount (count) || count * 0x4B400 != file.MaxOffset)
+                return null;
+            uint offset = 0;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                var entry = new Entry {
+                    Name = string.Format ("{0:D5}.BMP", i),
+                    Type = "image",
+                    Offset = offset,
+                    Size = 0x4B400
+                };
+                dir.Add (entry);
+                offset += 0x4B400;
+            }
+            return dir;
+        }
+
+        List<Entry> GetDataIndex (ArcView file, uint[] offsets, string name)
+        {
+            var dir = new List<Entry> (offsets.Length);
+            uint current_offset = 0;
+            for (int i = 0; i < offsets.Length; ++i)
+            {
+                var entry = new YkEntry {
+                    Name = string.Format ("{0}#{1:D4}", name, i),
+                    Offset = current_offset,
+                    Size = offsets[i] - current_offset,
+                    Id = i
+                };
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                if ("DATA02" == name && (i >= 11 || Data02Images.ContainsKey (i)))
+                {
+                    entry.Name += ".BMP";
+                    entry.Type = "image";
+                }
+                else if (IsAudio.Contains (name))
+                {
+                    entry.Name += ".WAV";
+                    entry.Type = "audio";
+                }
+                dir.Add (entry);
+                current_offset = offsets[i];
+            }
+            return dir;
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            var yarc = (YkArchive)arc;
+            if ("DATA03" == yarc.YkName)
+            {
+                var data = arc.File.View.ReadBytes (entry.Offset, entry.Size);
+                DecryptData03 (data);
+                return new BinMemoryStream (data, entry.Name);
+            }
+            else if (IsAudio.Contains (yarc.YkName))
+                return OpenAudio (arc, entry);
+            else
+                return base.OpenEntry (arc, entry);
+        }
+
+        public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
+        {
+            var yarc = (YkArchive)arc;
+            if (yarc.YkName == "DATA02")
+                return OpenData02Image (arc, (YkEntry)entry);
+            else if (yarc.YkName != "DATA01")
+                return base.OpenImage (arc, entry);
+            var input = arc.File.CreateStream (entry.Offset, entry.Size);
+            return new YkImageDecoder (input, new ImageMetaData { Width = 640, Height = 480, BPP = 8 });
+        }
+
+        IImageDecoder OpenData02Image (ArcFile arc, YkEntry entry)
+        {
+            ImageMetaData info;
+            if (entry.Id >= 189)
+                info = new ImageMetaData { Width = 128, Height = 192, BPP = 8 };
+            else if (!Data02Images.TryGetValue (entry.Id, out info) || null == info)
+                return base.OpenImage (arc, entry);
+            var input = arc.File.CreateStream (entry.Offset, entry.Size);
+            return new YkImageDecoder (input, info);
+        }
+
+        static readonly byte[] RiffHeader = new byte[] {
+            (byte)'R', (byte)'I', (byte)'F', (byte)'F', 0, 0, 0, 0,
+            (byte)'W', (byte)'A', (byte)'V', (byte)'E', (byte)'f', (byte)'m', (byte)'t', (byte)' ',
+        };
+
+        Stream OpenAudio (ArcFile arc, Entry entry)
+        {
+            var header = RiffHeader.Clone() as byte[];
+            LittleEndian.Pack (entry.Size+8u, header, 4);
+            var wave = arc.File.CreateStream (entry.Offset, entry.Size);
+            return new PrefixStream (header, wave);
+        }
+
+        unsafe void DecryptData03 (byte[] data)
+        {
+            int count = data.Length >> 2;
+            fixed (byte* data8 = &data[0])
+            {
+                uint* data32 = (uint*)data8;
+                while (count --> 0)
+                {
+                    *data32++ ^= 0x12C4D65u;
+                }
+            }
+        }
+    }
+
+    internal class YkImageDecoder : BinaryImageDecoder
+    {
+        public YkImageDecoder (IBinaryStream input, ImageMetaData info) : base (input, info)
+        {
+        }
+
+        protected override ImageData GetImageData ()
+        {
+            m_input.Position = 0;
+            var palette = ImageFormat.ReadPalette (m_input.AsStream);
+            int size = Info.iWidth * Info.iHeight;
+            var pixels = m_input.ReadBytes (size);
+            return ImageData.CreateFlipped (Info, PixelFormats.Indexed8, palette, pixels, Info.iWidth);
+        }
+    }
+}