updated legacy formats.

(BIZ): moved to Adviz folder.
(GIZ, GIZ2, BIZ2, PR1): new PC-98 image formats.
(DATA, BGM, SED): MyHarvest resource formats.
(HTF): compressed image format.
(PAK): Mina resource archives.
(GCmp): read palette from external resource.
(NCG): Nekotaro image format.
(BND, TCZ, TSZ): Ponytail Soft PC-98 formats.
(NOR): Sophia resource archive.
(SDA, PLA): Squadra D resource archives.
(UCA): added checks to avoid false positives.

Legacy/Jam/ImageHTF.cs

@@ -0,0 +1,69 @@
+//! \file       ImageHTF.cs
+//! \date       2023 Oct 07
+//! \brief      Huffman-compressed bitmap.
+//
+// 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.Compression;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media.Imaging;
+
+namespace GameRes.Formats.Jam
+{
+    [Export(typeof(ImageFormat))]
+    public class HtfFormat : ImageFormat
+    {
+        public override string         Tag => "HTF";
+        public override string Description => "Huffman-compressed bitmap";
+        public override uint     Signature => 0;
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            if (!file.Name.HasExtension (".HTF"))
+                return null;
+            int unpacked_size = file.ReadInt32();
+            if (unpacked_size <= 0 || unpacked_size > 0x1000000)
+                return null;
+            using (var huff = new HuffmanStream (file.AsStream, true))
+            using (var input = new BinaryStream (huff, file.Name))
+            {
+                return Bmp.ReadMetaData (input);
+            }
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            file.Position = 4;
+            using (var input = new HuffmanStream (file.AsStream, true))
+            {
+                var decoder = new BmpBitmapDecoder (input, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
+                return new ImageData (decoder.Frames[0], info);
+            }
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("HtfFormat.Write not implemented");
+        }
+    }
+}